Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 2995 by niro, Thu Jun 30 10:37:52 2016 UTC	revision 3138 by niro, Tue Jul 7 11:11:04 2020 UTC
#	Line 48	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 70  char *saved_command_line = NULL;	Line 70  char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_KERNEL_EFI   = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98	LT_INITRD_EFI   = 1 << 21,	LT_KERNEL_EFI = 1 << 20,
99	LT_KERNEL_16    = 1 << 22,	LT_INITRD_EFI = 1 << 21,
100	LT_INITRD_16    = 1 << 23,	LT_KERNEL_16 = 1 << 22,
101	LT_DEVTREE      = 1 << 24,	LT_INITRD_16 = 1 << 23,
102	LT_UNKNOWN      = 1 << 25,	LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 131  struct singleEntry {	Line 132  struct singleEntry {
132	#define NEED_DEVTREE (1 << 6)	#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154	typedef char *(*getEnvFunc)(struct configFileInfo *, char *name);	typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155	typedef int (*setEnvFunc)(struct configFileInfo *, char *name, char *value);	typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	getEnvFunc getEnv;	getEnvFunc getEnv;
162	setEnvFunc setEnv;	setEnvFunc setEnv;
163	struct keywordTypes * keywords;	struct keywordTypes *keywords;
164	int caseInsensitive;	int caseInsensitive;
165	int defaultIsIndex;	int defaultIsIndex;
166	int defaultIsVariable;	int defaultIsVariable;
167	int defaultSupportSaved;	int defaultSupportSaved;
168	int defaultIsSaved;	int defaultIsSaved;
169	int defaultIsUnquoted;	int defaultIsUnquoted;
170	enum lineType_e entryStart;	enum lineType_e entryStart;
171	enum lineType_e entryEnd;	enum lineType_e entryEnd;
172	int needsBootPrefix;	int needsBootPrefix;
173	int argsInQuotes;	int argsInQuotes;
174	int maxTitleLength;	int maxTitleLength;
175	int titleBracketed;	int titleBracketed;
176	int titlePosition;	int titlePosition;
177	int mbHyperFirst;	int mbHyperFirst;
178	int mbInitRdIsModule;	int mbInitRdIsModule;
179	int mbConcatArgs;	int mbConcatArgs;
180	int mbAllowExtraInitRds;	int mbAllowExtraInitRds;
181	char *envFile;	char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/boot/grub/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/menu.lst",	"/boot/grub/grub.conf",
200	"/etc/grub.conf",	"/boot/grub/menu.lst",
201	"/boot/grub2/grub.cfg",	"/etc/grub.conf",
202	"/boot/grub2-efi/grub.cfg",	NULL
203	NULL	};
204	};	static int i = -1;
205	static int i = -1;
206		if (i == -1) {
207	if (i == -1) {	for (i = 0; configFiles[i] != NULL; i++) {
208	for (i = 0; configFiles[i] != NULL; i++) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("Checking \"%s\": ", configFiles[i]);	if (!access(configFiles[i], R_OK)) {
210	if (!access(configFiles[i], R_OK)) {	dbgPrintf("found\n");
211	dbgPrintf("found\n");	return configFiles[i];
212	return configFiles[i];	}
213	}	dbgPrintf("not found\n");
214	dbgPrintf("not found\n");	}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229	.titlePosition = 1,	.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "linuxefi",   LT_KERNEL_EFI,  ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "linux16",    LT_KERNEL_16,   ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ "initrdefi",  LT_INITRD_EFI,  ' ', ' ' },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	{ "initrd16",   LT_INITRD_16,   ' ', ' ' },	{"initrd16", LT_INITRD_16, ' ', ' '},
246	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
247	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
248	{ "devicetree", LT_DEVTREE,  ' ' },	{"devicetree", LT_DEVTREE, ' '},
249	{ NULL, 0, 0 },	{NULL, 0, 0},
250	};	};
251
252	const char *grub2FindConfig(struct configFileInfo *cfi) {	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static const char *configFiles[] = {	{
254	"/boot/grub/grub-efi.cfg",	static const char *configFiles[] = {
255	"/boot/grub/grub.cfg",	"/boot/grub/grub-efi.cfg",
256	NULL	"/boot/grub/grub.cfg",
257	};	"/etc/grub2-efi.cfg",
258	static int i = -1;	"/etc/grub2.cfg",
259	static const char *grub_cfg = "/boot/grub/grub.cfg";	"/boot/grub2/grub.cfg",
260	int rc = -1;	"/boot/grub2-efi/grub.cfg",
261		NULL
262	if (i == -1) {	};
263	for (i = 0; configFiles[i] != NULL; i++) {	static int i = -1;
264	dbgPrintf("Checking \"%s\": ", configFiles[i]);	static const char *grub_cfg = "/boot/grub/grub.cfg";
265	if ((rc = access(configFiles[i], R_OK))) {	int rc = -1;
266	if (errno == EACCES) {
267	printf("Unable to access bootloader configuration file "	if (i == -1) {
268	"\"%s\": %m\n", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
269	exit(1);	dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282	}	}
	continue;
	} else {
	dbgPrintf("found\n");
	return configFiles[i];
	}
283	}	}
	}
284
285	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286	* that isn't in grub1, and if it exists, return the config file path	* that isn't in grub1, and if it exists, return the config file path
287	* that they use. */	* that they use. */
288	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return grub_cfg;	return grub_cfg;
291	}	}
292
293	dbgPrintf("not found\n");	dbgPrintf("not found\n");
294	return configFiles[i];	return configFiles[i];
295	}	}
296
297	/* kind of hacky.  It'll give the first 1024 bytes, ish. */	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	static char *grub2GetEnv(struct configFileInfo *info, char *name)	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	{	{
300	static char buf[1025];	static char buf[1025];
301	char *s = NULL;	char *s = NULL;
302	char *ret = NULL;	char *ret = NULL;
303	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304	int rc = asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);	int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306	if (rc < 0)
307	return NULL;	if (rc < 0)
308		return NULL;
309	FILE *f = popen(s, "r");
310	if (!f)	FILE *f = popen(s, "r");
311	goto out;	if (!f)
312		goto out;
313	memset(buf, '\0', sizeof (buf));
314	ret = fgets(buf, 1024, f);	memset(buf, '\0', sizeof(buf));
315	pclose(f);	ret = fgets(buf, 1024, f);
316		pclose(f);
317	if (ret) {
318	ret += strlen(name) + 1;	if (ret) {
319	ret[strlen(ret) - 1] = '\0';	ret += strlen(name) + 1;
320	}	ret[strlen(ret) - 1] = '\0';
321	dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);	}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323	out:	out:
324	free(s);	free(s);
325	return ret;	return ret;
326	}	}
327
328	static int sPopCount(const char *s, const char *c)	static int sPopCount(const char *s, const char *c)
329	{	{
330	int ret = 0;	int ret = 0;
331	if (!s)	if (!s)
332	return -1;	return -1;
333	for (int i = 0; s[i] != '\0'; i++)	for (int i = 0; s[i] != '\0'; i++)
334	for (int j = 0; c[j] != '\0'; j++)	for (int j = 0; c[j] != '\0'; j++)
335	if (s[i] == c[j])	if (s[i] == c[j])
336	ret++;	ret++;
337	return ret;	return ret;
338	}	}
339
340	static char *shellEscape(const char *s)	static char *shellEscape(const char *s)
341	{	{
342	int l = strlen(s) + sPopCount(s, "'") * 2;	int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	char *ret = calloc(l+1, sizeof (*ret));	char *ret = calloc(l + 1, sizeof(*ret));
345	if (!ret)	if (!ret)
346	return NULL;	return NULL;
347	for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {	for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348	if (s[i] == '\'')	if (s[i] == '\'')
349	ret[j++] = '\\';	ret[j++] = '\\';
350	ret[j] = s[i];	ret[j] = s[i];
351	}	}
352	return ret;	return ret;
353	}	}
354
355	static void unquote(char *s)	static void unquote(char *s)
356	{	{
357	int l = strlen(s);	int l = strlen(s);
358
359	if ((s[l-1] == '\'' && s[0] == '\'') || (s[l-1] == '"' && s[0] == '"')) {	if ((s[l - 1] == '\'' && s[0] == '\'')
360	memmove(s, s+1, l-2);	|| (s[l - 1] == '"' && s[0] == '"')) {
361	s[l-2] = '\0';	memmove(s, s + 1, l - 2);
362	}	s[l - 2] = '\0';
363		}
364	}	}
365
366	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	{	{
368	char *s = NULL;	char *s = NULL;
369	int rc = 0;	int rc = 0;
370	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372	unquote(value);	unquote(value);
373	value = shellEscape(value);	value = shellEscape(value);
374	if (!value)	if (!value)
375	return -1;	return -1;
376
377	rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);	rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378	free(value);	free(value);
379	if (rc <0)	if (rc < 0)
380	return -1;	return -1;
381
382	dbgPrintf("grub2SetEnv(%s): %s\n", name, s);	dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383	rc = system(s);	rc = system(s);
384	free(s);	free(s);
385	return rc;	return rc;
386	}	}
387
388	/* this is a gigantic hack to avoid clobbering grub2 variables... */	/* this is a gigantic hack to avoid clobbering grub2 variables... */
389	static int is_special_grub2_variable(const char *name)	static int is_special_grub2_variable(const char *name)
390	{	{
391	if (!strcmp(name,"\"${next_entry}\""))	if (!strcmp(name, "\"${next_entry}\""))
392	return 1;	return 1;
393	if (!strcmp(name,"\"${prev_saved_entry}\""))	if (!strcmp(name, "\"${prev_saved_entry}\""))
394	return 1;	return 1;
395	return 0;	return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int count = 0;	{
400		int count = 0;
401
402	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	static int iskernel(enum lineType_e type) {	static int iskernel(enum lineType_e type)
429	return (type == LT_KERNEL || type == LT_KERNEL_EFI || type == LT_KERNEL_16);	{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432	}	}
433
434	static int isinitrd(enum lineType_e type) {	static int isinitrd(enum lineType_e type)
435	return (type == LT_INITRD || type == LT_INITRD_EFI || type == LT_INITRD_16);	{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438	}	}
439
440	char *grub2ExtractTitle(struct singleLine * line) {	char *grub2ExtractTitle(struct singleLine *line)
441	char * current;	{
442	char * current_indent;	char *current;
443	int current_len;	char *current_indent;
444	int current_indent_len;	int current_len;
445	int i;	int current_indent_len;
446		int i;
447	/* bail out if line does not start with menuentry */
448	if (strcmp(line->elements[0].item, "menuentry"))	/* bail out if line does not start with menuentry */
449	return NULL;	if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
	i = 1;
	current = line->elements[i].item;
	current_len = strlen(current);
	/* if second word is quoted, strip the quotes and return single word */
	if (isquote(*current) && isquote(current[current_len - 1])) {
	char *tmp;
	tmp = strdup(current+1);
	if (!tmp)
	return NULL;
	tmp[strlen(tmp)-1] = '\0';
	return tmp;
	}
	/* if no quotes, return second word verbatim */
	if (!isquote(*current))
	return current;
	/* second element start with a quote, so we have to find the element
	* whose last character is also quote (assuming it's the closing one) */
	int resultMaxSize;
	char * result;
	/* need to ensure that ' does not match " as we search */
	char quote_char = *current;
	resultMaxSize = sizeOfSingleLine(line);
	result = malloc(resultMaxSize);
	snprintf(result, resultMaxSize, "%s", ++current);
451
452	i++;	i = 1;
	for (; i < line->numElements; ++i) {
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (current[current_len-1] != quote_char) {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.getEnv = grub2GetEnv,	.getEnv = grub2GetEnv,
503	.setEnv = grub2SetEnv,	.setEnv = grub2SetEnv,
504	.keywords = grub2Keywords,	.keywords = grub2Keywords,
505	.defaultIsIndex = 1,	.defaultIsIndex = 1,
506	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
507	.defaultIsVariable = 1,	.defaultIsVariable = 1,
508	.entryStart = LT_MENUENTRY,	.entryStart = LT_MENUENTRY,
509	.entryEnd = LT_ENTRY_END,	.entryEnd = LT_ENTRY_END,
510	.titlePosition = 1,	.titlePosition = 1,
511	.needsBootPrefix = 1,	.needsBootPrefix = 1,
512	.mbHyperFirst = 1,	.mbHyperFirst = 1,
513	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
514	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ "fdt",        LT_DEVTREE,     ' ' },	{"fdt", LT_DEVTREE, ' '},
609	{ "fdtdir",     LT_DEVTREE,     ' ' },	{"fdtdir", LT_DEVTREE, ' '},
610	{ NULL,    0, 0 },	{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621	.titlePosition = 1,	.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630	.titlePosition = 1,	.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641	.titlePosition = 1,	.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651	.titlePosition = 1,	.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.caseInsensitive = 1,	.caseInsensitive = 1,
666	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
667	.needsBootPrefix = 1,	.needsBootPrefix = 1,
668	.maxTitleLength = 255,	.maxTitleLength = 255,
669	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
670	.defaultIsUnquoted = 1,	.defaultIsUnquoted = 1,
671	.titlePosition = 1,	.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	int * index);	int *index);
696	static int readFile(int fd, char ** bufPtr);	static int readFile(int fd, char **bufPtr);
697	static void lineInit(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	struct singleLine * lineDup(struct singleLine * line);	struct singleLine *lineDup(struct singleLine *line);
699	static void lineFree(struct singleLine * line);	static void lineFree(struct singleLine *line);
700	static int lineWrite(FILE * out, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int getNextLine(char **bufPtr, struct singleLine *line,
703	struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static char * getRootSpecifier(char * str);	static size_t getRootSpecifier(const char *str);
705	static void requote(struct singleLine *line, struct configFileInfo * cfi);	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	static void insertElement(struct singleLine * line,	static void insertElement(struct singleLine *line,
707	const char * item, int insertHere,	const char *item, int insertHere,
708	struct configFileInfo * cfi);	struct configFileInfo *cfi);
709	static void removeElement(struct singleLine * line, int removeHere);	static void removeElement(struct singleLine *line, int removeHere);
710	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct configFileInfo * cfi);	struct configFileInfo *cfi);
714	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * line);	struct singleLine *line);
716	static int checkForExtLinux(struct grubConfig * config);	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	struct singleLine * tmplLine,	struct singleLine *tmplLine,
719	struct singleLine * prevLine,	struct singleLine *prevLine,
720	const char * val,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi);	struct singleLine *addLine(struct singleEntry *entry,
722	struct singleLine *  addLine(struct singleEntry * entry,	struct configFileInfo *cfi,
723	struct configFileInfo * cfi,	enum lineType_e type, char *defaultIndent,
724	enum lineType_e type, char * defaultIndent,	const char *val);
	const char * val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757		return buf;
758		}
759
760	return buf;	static inline int
761		kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762		{
763		int kwl = strlen(kw->key);
764		int ll = strlen(label);
765		int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783		}
784		return 0;
785	}	}
786
787	static enum lineType_e preferredLineType(enum lineType_e type,	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct configFileInfo *cfi) {	struct configFileInfo *cfi)
789	if (isEfi && cfi == &grub2ConfigType) {	{
790	switch (type) {	if (isEfi && cfi == &grub2ConfigType) {
791	case LT_KERNEL:	switch (type) {
792	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;	case LT_KERNEL:
793	case LT_INITRD:	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;	case LT_INITRD:
795	default:	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	return type;	default:
797	}	return type;
798		}
799	#if defined(__i386__) || defined(__x86_64__)	#if defined(__i386__) || defined(__x86_64__)
800	} else if (cfi == &grub2ConfigType) {	} else if (cfi == &grub2ConfigType) {
801	switch (type) {	switch (type) {
802	case LT_KERNEL:	case LT_KERNEL:
803	return LT_KERNEL_16;	return LT_KERNEL_16;
804	case LT_INITRD:	case LT_INITRD:
805	return LT_INITRD_16;	return LT_INITRD_16;
806	default:	default:
807	return type;	return type;
808	}	}
809	#endif	#endif
810	}	}
811	return type;	return type;
812	}	}
813
814	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
816	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
817	if (kw->type == type)	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	return kw;	if (kw->type == type)
819	}	return kw;
820	return NULL;	}
821		return NULL;
822	}	}
823
824	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct keywordTypes *kt = getKeywordByType(type, cfi);	{
826	if (kt)	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	return kt->key;	if (kt)
828	return "unknown";	return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getpathbyspec(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_devname(blkid, device, NULL);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static char * getuuidbydev(char *device) {	static char *getuuidbydev(char *device)
841	if (!blkid)	{
842	blkid_get_cache(&blkid, NULL);	if (!blkid)
843		blkid_get_cache(&blkid, NULL);
844
845	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
851	if (cfi->caseInsensitive) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcasecmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
	} else {
	if (!strcmp(keyword, kw->key))
	return kw->type;
854	}	}
855	}	return LT_UNKNOWN;
	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct grubConfig *cfg, struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it */	{
896	char * title = NULL;	/* bracketed title... let's extract it */
897	if (line->type == LT_TITLE) {	char *title = NULL;
898	char *tmp = line->elements[cfg->cfi->titlePosition].item;	if (line->type == LT_TITLE) {
899	if (cfg->cfi->titleBracketed) {	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	tmp++;	if (cfg->cfi->titleBracketed) {
901	title = strdup(tmp);	tmp++;
902	*(title + strlen(title) - 1) = '\0';	title = strdup(tmp);
903	} else {	*(title + strlen(title) - 1) = '\0';
904	title = strdup(tmp);	} else {
905	}	title = strdup(tmp);
906	} else if (line->type == LT_MENUENTRY)	}
907	title = strdup(line->elements[1].item);	} else if (line->type == LT_MENUENTRY)
908	else	title = strdup(line->elements[1].item);
909	return NULL;	else
910	return title;	return NULL;
911		return title;
912	}	}
913
914	static int readFile(int fd, char ** bufPtr) {	static int readFile(int fd, char **bufPtr)
915	int alloced = 0, size = 0, i = 0;	{
916	char * buf = NULL;	int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919	do {	do {
920	size += i;	size += i;
921	if ((size + 1024) > alloced) {	if ((size + 1024) > alloced) {
922	alloced += 4096;	alloced += 4096;
923	buf = realloc(buf, alloced + 1);	buf = realloc(buf, alloced + 1);
924	}	}
925	} while ((i = read(fd, buf + size, 1024)) > 0);	} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	if (i < 0) {	if (i < 0) {
928	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));	fprintf(stderr, _("error reading input: %s\n"),
929	free(buf);	strerror(errno));
930	return 1;	free(buf);
931	}	return 1;
932		}
933
934	buf = realloc(buf, size + 2);	buf = realloc(buf, size + 2);
935	if (size == 0)	if (size == 0)
936	buf[size++] = '\n';	buf[size++] = '\n';
937	else	else if (buf[size - 1] != '\n')
938	if (buf[size - 1] != '\n')	buf[size++] = '\n';
939	buf[size++] = '\n';	buf[size] = '\0';
	buf[size] = '\0';
940
941	*bufPtr = buf;	*bufPtr = buf;
942
943	return 0;	return 0;
944	}	}
945
946	static void lineInit(struct singleLine * line) {	static void lineInit(struct singleLine *line)
947	line->indent = NULL;	{
948	line->elements = NULL;	line->type = LT_UNIDENTIFIED;
949	line->numElements = 0;	line->indent = NULL;
950	line->next = NULL;	line->elements = NULL;
951	}	line->numElements = 0;
952		line->next = NULL;
	struct singleLine * lineDup(struct singleLine * line) {
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
	return newLine;
953	}	}
954
955	static void lineFree(struct singleLine * line) {	struct singleLine *lineDup(struct singleLine *line)
956	if (line->indent) free(line->indent);	{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	free(line->elements[i].item);	newLine->next = NULL;
961	free(line->elements[i].indent);	newLine->type = line->type;
962	}	newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (line->elements) free(line->elements);	for (int i = 0; i < newLine->numElements; i++) {
967	lineInit(line);	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	}	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	static int lineWrite(FILE * out, struct singleLine * line,	return newLine;
972	struct configFileInfo * cfi) {	}
	if (fprintf(out, "%s", line->indent) == -1) return -1;
	for (int i = 0; i < line->numElements; i++) {
	/* Need to handle this, because we strip the quotes from
	* menuentry when read it. */
	if (line->type == LT_MENUENTRY && i == 1) {
	if(!isquote(*line->elements[i].item)) {
	int substring = 0;
	/* If the line contains nested quotes, we did not strip
	* the "interna" quotes and we must use the right quotes
	* again when writing the updated file. */
	for (int j = i; j < line->numElements; j++) {
	if (strchr(line->elements[i].item, '\'') != NULL) {
	substring = 1;
	fprintf(out, "\"%s\"", line->elements[i].item);
	break;
	}
	}
	if (!substring)
	fprintf(out, "\'%s\'", line->elements[i].item);
	} else {
	fprintf(out, "%s", line->elements[i].item);
	}
	fprintf(out, "%s", line->elements[i].indent);
	continue;
	}
	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
	if (fputc('"', out) == EOF) return -1;
	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;
	if (i < line->numElements - 1)
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (int i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (int i = 1; i < line->numElements; i++) {
	char *p;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (int j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	line->elements[i + 1].indent = line->elements[i].indent;	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191		}
1192		line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static int isnumber(const char *s)	static int isnumber(const char *s)
1255	{	{
1256	int i;	int i;
1257	for (i = 0; s[i] != '\0'; i++)	for (i = 0; s[i] != '\0'; i++)
1258	if (s[i] < '0' || s[i] > '9')	if (s[i] < '0' || s[i] > '9')
1259	return 0;	return 0;
1260	return i;	return i;
1261	}	}
1262
1263	static struct grubConfig * readConfig(const char * inName,	static struct grubConfig *readConfig(const char *inName,
1264	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
1265	int in;	{
1266	char * incoming = NULL, * head;	int in;
1267	int rc;	char *incoming = NULL, *head;
1268	int sawEntry = 0;	int rc;
1269	int movedLine = 0;	int sawEntry = 0;
1270	struct grubConfig * cfg;	int movedLine = 0;
1271	struct singleLine * last = NULL, * line, * defaultLine = NULL;	struct grubConfig *cfg;
1272	char * end;	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	struct singleEntry * entry = NULL;	char *end;
1274	int len;	struct singleEntry *entry = NULL;
1275	char * buf;	int len;
1276		char *buf;
1277	if (inName == NULL) {
1278	printf("Could not find bootloader configuration\n");	if (inName == NULL) {
1279	exit(1);	printf("Could not find bootloader configuration\n");
1280	} else if (!strcmp(inName, "-")) {	exit(1);
1281	in = 0;	} else if (!strcmp(inName, "-")) {
1282	} else {	in = 0;
1283	if ((in = open(inName, O_RDONLY)) < 0) {	} else {
1284	fprintf(stderr, _("error opening %s for read: %s\n"),	if ((in = open(inName, O_RDONLY)) < 0) {
1285	inName, strerror(errno));	fprintf(stderr, _("error opening %s for read: %s\n"),
1286	return NULL;	inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
	rc = readFile(in, &incoming);
	close(in);
	if (rc) return NULL;
	head = incoming;
	cfg = malloc(sizeof(*cfg));
	cfg->primaryIndent = strdup("");
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
	if (getNextLine(&head, line, cfi)) {
	free(line);
	/* XXX memory leak of everything in cfg */
	return NULL;
	}
	if (!sawEntry && line->numElements) {
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
	entry->skip = 0;
	entry->multiboot = 0;
	entry->lines = NULL;
	entry->next = NULL;
	}
	if (line->type == LT_SET_VARIABLE) {
	dbgPrintf("found 'set' command (%d elements): ", line->numElements);
	dbgPrintf("%s", line->indent);
	for (int i = 0; i < line->numElements; i++)
	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key) &&
	!is_special_grub2_variable(line->elements[2].item)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (iskernel(line->type)) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry && entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	for (struct singleLine *l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (iskernel(l->type)) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) ||
	(line->type == LT_TITLE && line->numElements > 1)) {
	/* make the title/default a single argument (undoing our parsing) */
	len = 0;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1290
1291	for (int i = 1; i < line->numElements; i++) {	rc = readFile(in, &incoming);
1292	strcat(buf, line->elements[i].item);	close(in);
1293	free(line->elements[i].item);	if (rc)
1294		return NULL;
1295
1296		head = incoming;
1297		cfg = malloc(sizeof(*cfg));
1298		cfg->primaryIndent = strdup("");
1299		cfg->secondaryIndent = strdup("\t");
1300		cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301		cfg->cfi = cfi;
1302		cfg->theLines = NULL;
1303		cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305		cfg->isModified = 0;
1306
1307		/* copy everything we have */
1308		while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if ((i + 1) != line->numElements) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].indent);	free(cfg->primaryIndent);
1320	free(line->elements[i].indent);	cfg->primaryIndent = strdup(line->indent);
1321	}	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	/* initially unseen value */
	char quote_char = '\0';
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
	/* allocate mem for extra flags. */
	extras = malloc(len + 1);
	*extras = '\0';
	/* get title. */
	for (int i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (isquote(*line->elements[i].item) && quote_char == '\0') {
	/* ensure we properly pair off quotes */
	quote_char = *line->elements[i].item;
	title = line->elements[i].item + 1;
	} else {
	title = line->elements[i].item;
1324	}	}
1325
1326	len = strlen(title);	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	if (title[len-1] == quote_char) {	sawEntry = 1;
1328	strncat(buf, title,len-1);	if (!entry) {
1329	break;	cfg->entries = malloc(sizeof(*entry));
1330	} else {	entry = cfg->entries;
1331	strcat(buf, title);	} else {
1332	strcat(buf, line->elements[i].indent);	entry->next = malloc(sizeof(*entry));
1333		entry = entry->next;
1334		}
1335
1336		entry->skip = 0;
1337		entry->multiboot = 0;
1338		entry->lines = NULL;
1339		entry->next = NULL;
1340	}	}
	}
1341
1342	/* get extras */	if (line->type == LT_SET_VARIABLE) {
1343	int count = 0;	dbgPrintf("found 'set' command (%d elements): ",
1344	quote_char = '\0';	line->numElements);
1345	for (int i = 0; i < line->numElements; i++) {	dbgPrintf("%s", line->indent);
1346	if (count >= 2) {	for (int i = 0; i < line->numElements; i++)
1347	strcat(extras, line->elements[i].item);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	strcat(extras, line->elements[i].indent);	line->elements[i].indent);
1349	}	dbgPrintf("\n");
1350		struct keywordTypes *kwType =
1351	if (!strcmp(line->elements[i].item, "menuentry"))	getKeywordByType(LT_DEFAULT, cfi);
1352	continue;	if (kwType && line->numElements == 3
1353		&& !strcmp(line->elements[1].item, kwType->key)
1354	/* count ' or ", there should be two in menuentry line. */	&& !is_special_grub2_variable(
1355	if (isquote(*line->elements[i].item) && quote_char == '\0') {	line->elements[2].item)) {
1356	/* ensure we properly pair off quotes */	dbgPrintf("Line sets default config\n");
1357	quote_char = *line->elements[i].item;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	count++;	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361	len = strlen(line->elements[i].item);	/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363	if (line->elements[i].item[len -1] == quote_char)	* sure to use LT_HYPER instead of LT_KERNEL now
1364	count++;	*/
1365		if (entry && entry->multiboot)
1366	/* ok, we get the final ' or ", others are extras. */	line->type = LT_HYPER;
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(line->elements[last].item[len]))
	line->elements[last].item[len] = '\0';
	}
	}
	if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1367
1368	if (sawEntry) {	} else if (line->type == LT_MBMODULE) {
1369	if (!entry->lines)	/* go back and fix the LT_KERNEL line to indicate
1370	entry->lines = line;	* LT_HYPER instead, now that we know this is a
1371	else	* multiboot entry.  This only applies to grub, but
1372	last->next = line;	* that's the only place we should find LT_MBMODULE
1373	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	* lines anyway.
1374		*/
1375	/* we could have seen this outside of an entry... if so, we	for (struct singleLine * l = entry->lines; l;
1376	* ignore it like any other line we don't grok */	l = l->next) {
1377	if (line->type == LT_ENTRY_END && sawEntry)	if (l->type == LT_HYPER)
1378	sawEntry = 0;	break;
1379	} else {	else if (iskernel(l->type)) {
1380	if (!cfg->theLines)	l->type = LT_HYPER;
1381	cfg->theLines = line;	break;
1382	else	}
1383	last->next = line;	}
1384	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	entry->multiboot = 1;
	}
1385
1386	last = line;	} else if (line->type == LT_HYPER) {
1387	}	entry->multiboot = 1;
1388
1389	free(incoming);	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	for (int i = 1; i < line->numElements; i++) {
1409	if (defaultLine) {	strcat(buf, line->elements[i].item);
1410	if (defaultLine->numElements > 2 &&	free(line->elements[i].item);
1411	cfi->defaultSupportSaved &&
1412	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	if ((i + 1) != line->numElements) {
1413	cfg->cfi->defaultIsSaved = 1;	strcat(buf, line->elements[i].indent);
1414	cfg->defaultImage = DEFAULT_SAVED_GRUB2;	free(line->elements[i].indent);
1415	if (cfg->cfi->getEnv) {	}
	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
	if (defTitle) {
	int index = 0;
	if (isnumber(defTitle)) {
	index = atoi(defTitle);
	entry = findEntryByIndex(cfg, index);
	} else {
	entry = findEntryByTitle(cfg, defTitle, &index);
1416	}	}
	if (entry)
	cfg->defaultImage = index;
	}
	}
	} else if (cfi->defaultIsVariable) {
	char *value = defaultLine->elements[2].item;
	while (*value && (*value == '"' || *value == '\'' ||
	*value == ' ' || *value == '\t'))
	value++;
	cfg->defaultImage = strtol(value, &end, 10);
	while (*end && (*end == '"' || *end == '\'' ||
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	int i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(cfg, line))) break;
	}
	i++;
	entry = NULL;
	}
1417
1418	if (entry){	line->elements[1].indent =
1419	cfg->defaultImage = i;	line->elements[line->numElements - 1].indent;
1420	}else{	line->elements[1].item = buf;
1421	cfg->defaultImage = -1;	line->numElements = 2;
1422	}	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	}	/* let --remove-kernel="TITLE=what" work */
1424	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {	len = 0;
1425	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	char *extras;
1426	if (defTitle) {	char *title;
1427	int index = 0;	/* initially unseen value */
1428	if (isnumber(defTitle)) {	char quote_char = '\0';
1429	index = atoi(defTitle);
1430	entry = findEntryByIndex(cfg, index);	for (int i = 1; i < line->numElements; i++) {
1431	} else {	len += strlen(line->elements[i].item);
1432	entry = findEntryByTitle(cfg, defTitle, &index);	len += strlen(line->elements[i].indent);
1433	}	}
1434	if (entry)	buf = malloc(len + 1);
1435	cfg->defaultImage = index;	*buf = '\0';
	}
	} else {
	cfg->defaultImage = 0;
	}
1436
1437	return cfg;	/* allocate mem for extra flags. */
1438	}	extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	static void writeDefault(FILE * out, char * indent,	len = strlen(title);
1456	char * separator, struct grubConfig * cfg) {	if (title[len - 1] == quote_char) {
1457	struct singleEntry * entry;	strncat(buf, title, len - 1);
1458	struct singleLine * line;	break;
1459	int i;	} else {
1460		strcat(buf, title);
1461	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)	strcat(buf, line->elements[i].indent);
1462	return;	}
1463		}
	if (cfg->defaultImage == DEFAULT_SAVED)
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	else if (cfg->cfi->defaultIsSaved) {
	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
	if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {
	char *title;
	entry = findEntryByIndex(cfg, cfg->defaultImage);
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line)
	line = getLineByType(LT_TITLE, entry->lines);
	if (line) {
	title = extractTitle(cfg, line);
	if (title)
	cfg->cfi->setEnv(cfg->cfi, "saved_entry", title);
	}
	}
	} else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1464
1465	entry = cfg->entries;	/* get extras */
1466	while (entry && entry->skip)	int count = 0;
1467	entry = entry->next;	quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	i = 0;	if (!strcmp
1476	while (entry && i < image) {	(line->elements[i].item, "menuentry"))
1477	entry = entry->next;	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	while (entry && entry->skip)	len = strlen(line->elements[i].item);
	entry = entry->next;
	i++;
	}
1488
1489	if (!entry)	if (line->elements[i].item[len - 1] ==
1490	return;	quote_char)
1491		count++;
1492
1493	line = getLineByType(LT_TITLE, entry->lines);	/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (line && line->numElements >= 2)	if (isquote(*line->elements[1].item))
1511	fprintf(out, "%sdefault%s%s\n", indent, separator,	memmove(line->elements[1].item,
1512	line->elements[1].item);	line->elements[1].item + 1,
1513	else if (line && (line->numElements == 1) &&	strlen(line->elements[1].item +
1514	cfg->cfi->titleBracketed) {	1) + 1);
1515	char *title = extractTitle(cfg, line);
1516	if (title) {	last = line->numElements - 1;
1517	fprintf(out, "%sdefault%s%s\n", indent, separator, title);	len = strlen(line->elements[last].item) - 1;
1518	free(title);	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520		}
1521	}	}
	}
	}
	}
	}
	static int writeConfig(struct grubConfig * cfg, char * outName,
	const char * prefix) {
	FILE * out;
	struct singleLine * line;
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	char *dir = strdupa(outName);
	rc = chdir(dirname(dir));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key) &&
	!is_special_grub2_variable(line->elements[2].item)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
1581
1582	return 0;	free(incoming);
	}
1583
1584	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int i = 0;	if (defaultLine) {
1586	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1589	while (entry) {	"\"${saved_entry}\"", 16)) {
1590	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1591	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592	entry = entry->next;	if (cfg->cfi->getEnv) {
1593	}	char *defTitle =
1594	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1595	}	if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701		{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800		} else {
1801		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803		int len = 256;
1804		int rc;
1805
1806		/* most likely the symlink is relative, so change our
1807		directory to the dir of the symlink */
1808		char *dir = strdupa(outName);
1809		rc = chdir(dirname(dir));
1810		do {
1811		buf = alloca(len + 1);
1812		rc = readlink(basename(outName), buf, len);
1813		if (rc == len)
1814		len += 256;
1815		} while (rc == len);
1816
1817		if (rc < 0) {
1818		fprintf(stderr,
1819		_
1820		("grubby: error readlink link %s: %s\n"),
1821		outName, strerror(errno));
1822		return 1;
1823		}
1824
1825		outName = buf;
1826		outName[rc] = '\0';
1827		}
1828
1829		tmpOutName = alloca(strlen(outName) + 2);
1830		sprintf(tmpOutName, "%s-", outName);
1831		out = fopen(tmpOutName, "w");
1832		if (!out) {
1833		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834		tmpOutName, strerror(errno));
1835		return 1;
1836		}
1837
1838		if (!stat(outName, &sb)) {
1839		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840		fprintf(stderr,
1841		_
1842		("grubby: error setting perms on %s: %s\n"),
1843		tmpOutName, strerror(errno));
1844		fclose(out);
1845		unlink(tmpOutName);
1846		return 1;
1847		}
1848		}
1849		}
1850
1851		line = cfg->theLines;
1852		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1853		while (line) {
1854		if (line->type == LT_SET_VARIABLE && defaultKw &&
1855		line->numElements == 3 &&
1856		!strcmp(line->elements[1].item, defaultKw->key) &&
1857		!is_special_grub2_variable(line->elements[2].item)) {
1858		writeDefault(out, line->indent,
1859		line->elements[0].indent, cfg);
1860		needs &= ~MAIN_DEFAULT;
1861		} else if (line->type == LT_DEFAULT) {
1862		writeDefault(out, line->indent,
1863		line->elements[0].indent, cfg);
1864		needs &= ~MAIN_DEFAULT;
1865		} else if (line->type == LT_FALLBACK) {
1866		if (cfg->fallbackImage > -1)
1867		fprintf(out, "%s%s%s%d\n", line->indent,
1868		line->elements[0].item,
1869		line->elements[0].indent,
1870		cfg->fallbackImage);
1871		} else {
1872		if (lineWrite(out, line, cfg->cfi) == -1) {
1873		fprintf(stderr,
1874		_("grubby: error writing %s: %s\n"),
1875		tmpOutName, strerror(errno));
1876		fclose(out);
1877		unlink(tmpOutName);
1878		return 1;
1879		}
1880		}
1881
1882		line = line->next;
1883		}
1884
1885		if (needs & MAIN_DEFAULT) {
1886		writeDefault(out, cfg->primaryIndent, "=", cfg);
1887		needs &= ~MAIN_DEFAULT;
1888		}
1889
1890		i = 0;
1891		while ((entry = findEntryByIndex(cfg, i++))) {
1892		if (entry->skip)
1893		continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907		}
1908
1909		if (tmpOutName) {
1910		/* write userspace buffers */
1911		if (fflush(out))
1912		rc = 1;
1913
1914		/* purge the write-back cache with fsync() */
1915		if (fsync(fileno(out)))
1916		rc = 1;
1917
1918		if (fclose(out))
1919		rc = 1;
1920
1921		if (rc == 0 && rename(tmpOutName, outName)) {
1922		unlink(tmpOutName);
1923		rc = 1;
1924		}
1925
1926		/* fsync() the destination directory after rename */
1927		if (rc == 0) {
1928		int dirfd;
1929
1930		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1931		if (dirfd < 0)
1932		rc = 1;
1933		else if (fsync(dirfd))
1934		rc = 1;
1935
1936		if (dirfd >= 0)
1937		close(dirfd);
1938		}
1939
1940		if (rc == 1)
1941		fprintf(stderr,
1942		_("grubby: error flushing data: %m\n"));
1943		}
1944
1945		return rc;
1946		}
1947
1948		static int numEntries(struct grubConfig *cfg)
1949		{
1950		int i = 0;
1951		struct singleEntry *entry;
1952
1953		entry = cfg->entries;
1954		while (entry) {
1955		if (!entry->skip)
1956		i++;
1957		entry = entry->next;
1958		}
1959		return i;
1960		}
1961
1962	static char *findDiskForRoot()	static char *findDiskForRoot()
1963	{	{
1964	int fd;	int fd;
1965	char buf[65536];	char buf[65536];
1966	char *devname;	char *devname;
1967	char *chptr;	char *chptr;
1968	int rc;	int rc;
1969
1970		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971		fprintf(stderr, "grubby: failed to open %s: %s\n",
1972		_PATH_MOUNTED, strerror(errno));
1973		return NULL;
1974		}
1975
1976		rc = read(fd, buf, sizeof(buf) - 1);
1977		if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979		_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981		return NULL;
1982		}
1983		close(fd);
1984		buf[rc] = '\0';
1985		chptr = buf;
1986
1987	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1988
1989	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1990	if (rc <= 0) {	devname = chptr;
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	char *foundanswer = NULL;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/* remember the last / entry in mtab */
	foundanswer = devname;
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1991
1992	/* Return the last / entry found */	/*
1993	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1994	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1995	*chptr = '\0';	* on to the next line.
1996	return strdup(foundanswer);	*/
1997	}	if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004		/* Seek to the next space */
2005		chptr = strchr(chptr, ' ');
2006		if (!chptr) {
2007		fprintf(stderr, "grubby: error parsing %s: %s\n",
2008		_PATH_MOUNTED, strerror(errno));
2009		return NULL;
2010		}
2011
2012		/*
2013		* The second column of a mtab entry is the mount point, we
2014		* are looking for '/' obviously.
2015		*/
2016		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2017		/* remember the last / entry in mtab */
2018		foundanswer = devname;
2019		}
2020
2021		/* Next line */
2022		chptr = strchr(chptr, '\n');
2023		if (chptr)
2024		chptr++;
2025		}
2026
2027		/* Return the last / entry found */
2028		if (foundanswer) {
2029		chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032		}
2033
2034	return NULL;	return NULL;
2035	}	}
2036
2037	void printEntry(struct singleEntry * entry, FILE *f) {	void printEntry(struct singleEntry *entry, FILE * f)
2038	int i;	{
2039	struct singleLine * line;	int i;
2040		struct singleLine *line;
2041
2042	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2043	log_message(f, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2044	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2045	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2046	* menuentry when read it. */	* menuentry when read it. */
2047	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2048	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2049	log_message(f, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2050	else	line->elements[i].item);
2051	log_message(f, "%s", line->elements[i].item);	else
2052	log_message(f, "%s", line->elements[i].indent);	log_message(f, "%s",
2053		line->elements[i].item);
2054	continue;	log_message(f, "%s", line->elements[i].indent);
2055	}
2056		continue;
2057	log_message(f, "%s%s",	}
2058	line->elements[i].item, line->elements[i].indent);
2059		log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064	}	}
	log_message(f, "\n");
	}
2065	}	}
2066
2067	void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069	{	{
2070	static int once;	static int once;
2071	va_list argp, argq;	va_list argp, argq;
2072
2073	va_start(argp, fmt);	va_start(argp, fmt);
2074
2075	va_copy(argq, argp);	va_copy(argq, argp);
2076	if (!once) {	if (!once) {
2077	log_time(NULL);	log_time(NULL);
2078	log_message(NULL, "command line: %s\n", saved_command_line);	log_message(NULL, "command line: %s\n", saved_command_line);
2079	}	}
2080	log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed");	log_message(NULL, "DBG: Image entry %s: ",
2081	log_vmessage(NULL, fmt, argq);	okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
2083	printEntry(entry, NULL);
2084	va_end(argq);	printEntry(entry, NULL);
2085		va_end(argq);
2086
2087		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093	if (!debug) {	if (okay) {
2094	once = 1;	va_end(argp);
2095	va_end(argp);	return;
2096	return;	}
	}
2097
2098	if (okay) {	if (!once)
2099		log_message(stderr, "DBG: command line: %s\n",
2100		saved_command_line);
2101		once = 1;
2102		fprintf(stderr, "DBG: Image entry failed: ");
2103		vfprintf(stderr, fmt, argp);
2104		printEntry(entry, stderr);
2105	va_end(argp);	va_end(argp);
	return;
	}
	if (!once)
	log_message(stderr, "DBG: command line: %s\n", saved_command_line);
	once = 1;
	fprintf(stderr, "DBG: Image entry failed: ");
	vfprintf(stderr, fmt, argp);
	printEntry(entry, stderr);
	va_end(argp);
2106	}	}
2107
2108	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1868  static int endswith(const char *s, char	Line 2118  static int endswith(const char *s, char
2118	return s[slen] == c;	return s[slen] == c;
2119	}	}
2120
2121	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	int skipRemoved, int flags) {	int skipRemoved, int flags)
2123	struct singleLine * line;	{
2124	char * fullName;	struct singleLine *line;
2125	int i;	char *fullName;
2126	char * dev;	int i;
2127	char * rootspec;	char *dev;
2128	char * rootdev;	size_t rs;
2129		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, 0, "marked to skip\n");
	return 0;
	}
2130
2131	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);	if (skipRemoved && entry->skip) {
2132	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2133	notSuitablePrintf(entry, 0, "no line found\n");	return 0;
2134	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, 0, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2135
2136	if (flags & GRUBBY_BADIMAGE_OKAY) {	line =
2137	notSuitablePrintf(entry, 1, "\n");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138	return 1;	entry->lines);
2139	}	if (!line) {
2140		notSuitablePrintf(entry, 0, "no line found\n");
2141		return 0;
2142		}
2143		if (line->numElements < 2) {
2144		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145		line->numElements);
2146		return 0;
2147		}
2148
2149	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2150	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2151	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2152	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2153
2154	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2155	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2156		rs = getRootSpecifier(line->elements[1].item);
2157		int hasslash = endswith(bootPrefix, '/') ||
2158		beginswith(line->elements[1].item + rs, '/');
2159		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2160		line->elements[1].item + rs);
2161		if (access(fullName, R_OK)) {
2162		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2163		return 0;
2164		}
2165		for (i = 2; i < line->numElements; i++)
2166		if (!strncasecmp(line->elements[i].item, "root=", 5))
2167		break;
2168		if (i < line->numElements) {
2169		dev = line->elements[i].item + 5;
2170	} else {	} else {
2171	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2172	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
	*/
	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);
2173
2174	/* failed to find one */	if (line && line->numElements >= 2) {
2175	if (!line) {	dev = line->elements[1].item;
2176	notSuitablePrintf(entry, 0, "no line found\n");	} else {
2177	return 0;	/* didn't succeed in finding a LT_ROOT, let's try
2178	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2179		* for the args, so check that too.
2180		*/
2181		line =
2182		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2183		entry->lines);
2184
2185		/* failed to find one */
2186		if (!line) {
2187		notSuitablePrintf(entry, 0, "no line found\n");
2188		return 0;
2189		}
2190
2191	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2192	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2193	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2194	dev = line->elements[i].item + 5;	break;
2195	else {	if (i < line->numElements)
2196	notSuitablePrintf(entry, 0, "no root= entry found\n");	dev = line->elements[i].item + 5;
2197	/* it failed too...  can't find root= */	else {
2198	return 0;	notSuitablePrintf(entry, 0,
2199	}	"no root= entry found\n");
2200		/* it failed too...  can't find root= */
2201		return 0;
2202		}
2203		}
2204	}	}
	}
2205
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2206	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2207		if (!getpathbyspec(dev)) {
2208		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2209		dev);
2210		return 0;
2211		} else
2212		dev = getpathbyspec(dev);
2213
2214	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2215	if (!rootdev) {	if (!rootdev) {
2216	notSuitablePrintf(entry, 0, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2217	return 0;	return 0;
2218	}	}
2219
2220	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2221	notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2222	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2223	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2224	return 0;	free(rootdev);
2225	}	return 0;
2226		}
2227
2228	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2229	notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2230	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2231	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2232	return 0;	free(rootdev);
2233	}	return 0;
2234		}
2235
2236	free(rootdev);	free(rootdev);
2237	notSuitablePrintf(entry, 1, "\n");	notSuitablePrintf(entry, 1, "\n");
2238
2239	return 1;	return 1;
2240	}	}
2241
2242	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2243	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2244	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2245	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2246	int * index) {	int *index)
2247	struct singleEntry * entry = NULL;	{
2248	struct singleLine * line;	struct singleEntry *entry = NULL;
2249	int i;	struct singleLine *line;
2250	char * chptr;	int i;
2251	char * rootspec = NULL;	char *chptr;
2252	enum lineType_e checkType = LT_KERNEL;	enum lineType_e checkType = LT_KERNEL;
2253
2254		if (isdigit(*kernel)) {
2255		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2256
2257		i = 0;
2258		indexVars[i] = strtol(kernel, &chptr, 10);
2259		while (*chptr == ',') {
2260		i++;
2261		kernel = chptr + 1;
2262		indexVars[i] = strtol(kernel, &chptr, 10);
2263		}
2264
2265	if (isdigit(*kernel)) {	if (*chptr) {
2266	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	/* can't parse it, bail */
2267		return NULL;
2268		}
2269
2270	i = 0;	indexVars[i + 1] = -1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2271
2272	if (*chptr) {	i = 0;
2273	/* can't parse it, bail */	if (index) {
2274	return NULL;	while (i < *index) {
2275	}	i++;
2276		if (indexVars[i] == -1)
2277		return NULL;
2278		}
2279		}
2280
2281	indexVars[i + 1] = -1;	entry = findEntryByIndex(config, indexVars[i]);
2282		if (!entry)
2283		return NULL;
2284
2285		line =
2286		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2287		LT_KERNEL_16, entry->lines);
2288		if (!line)
2289		return NULL;
2290
2291	i = 0;	if (index)
2292	if (index) {	*index = indexVars[i];
2293	while (i < *index) {	return entry;
	i++;
	if (indexVars[i] == -1) return NULL;
	}
2294	}	}
2295
2296	entry = findEntryByIndex(config, indexVars[i]);	if (!strcmp(kernel, "DEFAULT")) {
2297	if (!entry) return NULL;	if (index && *index > config->defaultImage) {
2298		entry = NULL;
2299		} else {
2300		entry = findEntryByIndex(config, config->defaultImage);
2301		if (entry && entry->skip)
2302		entry = NULL;
2303		else if (index)
2304		*index = config->defaultImage;
2305		}
2306		} else if (!strcmp(kernel, "ALL")) {
2307		if (index)
2308		i = *index;
2309		else
2310		i = 0;
2311
2312	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2313	if (!line) return NULL;	if (!entry->skip)
2314		break;
2315		i++;
2316		}
2317
2318	if (index) *index = indexVars[i];	if (entry && index)
2319	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2320	} else {	} else {
2321	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2322	if (entry && entry->skip)	i = *index;
2323	entry = NULL;	else
2324	else if (index)	i = 0;
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
	while ((entry = findEntryByIndex(config, i))) {
	if (!entry->skip) break;
	i++;
	}
2325
2326	if (entry && index)	if (!strncmp(kernel, "TITLE=", 6)) {
2327	*index = i;	prefix = "";
2328	} else {	checkType = LT_TITLE | LT_MENUENTRY;
2329	if (index)	kernel += 6;
2330	i = *index;	}
	else
	i = 0;
2331
2332	if (!strncmp(kernel, "TITLE=", 6)) {	for (entry = findEntryByIndex(config, i); entry;
2333	prefix = "";	entry = entry->next, i++) {
2334	checkType = LT_TITLE|LT_MENUENTRY;	if (entry->skip)
2335	kernel += 6;	continue;
2336	}
2337		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2338	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	checkType, kernel, entry);
2339	if (entry->skip) continue;
2340		/* check all the lines matching checkType */
2341	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	for (line = entry->lines; line; line = line->next) {
2342		enum lineType_e ct = checkType;
2343	/* check all the lines matching checkType */	if (entry->multiboot && checkType == LT_KERNEL)
2344	for (line = entry->lines; line; line = line->next) {	ct = LT_KERNEL | LT_KERNEL_EFI |
2345	enum lineType_e ct = checkType;	LT_MBMODULE | LT_HYPER |
2346	if (entry->multiboot && checkType == LT_KERNEL)	LT_KERNEL_16;
2347	ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER|LT_KERNEL_16;	else if (checkType & LT_KERNEL)
2348	else if (checkType & LT_KERNEL)	ct = checkType | LT_KERNEL_EFI |
2349	ct = checkType | LT_KERNEL_EFI | LT_KERNEL_16;	LT_KERNEL_16;
2350	line = getLineByType(ct, line);	line = getLineByType(ct, line);
2351	if (!line)	if (!line)
2352	break;  /* not found in this entry */	break; /* not found in this entry */
2353
2354		if (line && line->type != LT_MENUENTRY &&
2355		line->numElements >= 2) {
2356		if (!strcmp(line->elements[1].item +
2357		getRootSpecifier(
2358		line->elements[1].item),
2359		kernel + strlen(prefix)))
2360		break;
2361		}
2362		if (line->type == LT_MENUENTRY &&
2363		!strcmp(line->elements[1].item, kernel))
2364		break;
2365		}
2366
2367	if (line && line->type != LT_MENUENTRY &&	/* make sure this entry has a kernel identifier; this skips
2368	line->numElements >= 2) {	* non-Linux boot entries (could find netbsd etc, though, which is
2369	rootspec = getRootSpecifier(line->elements[1].item);	* unfortunate)
2370	if (!strcmp(line->elements[1].item +	*/
2371	((rootspec != NULL) ? strlen(rootspec) : 0),	if (line
2372	kernel + strlen(prefix)))	&& getLineByType(LT_KERNEL | LT_HYPER |
2373	break;	LT_KERNEL_EFI | LT_KERNEL_16,
2374		entry->lines))
2375		break; /* found 'im! */
2376	}	}
	if(line->type == LT_MENUENTRY &&
	!strcmp(line->elements[1].item, kernel))
	break;
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines))
	break; /* found 'im! */
	}
2377
2378	if (index) *index = i;	if (index)
2379	}	*index = i;
2380		}
2381
2382	return entry;	return entry;
2383	}	}
2384
2385	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2386	int * index) {	int *index)
2387	struct singleEntry * entry;	{
2388	struct singleLine * line;	struct singleEntry *entry;
2389	int i;	struct singleLine *line;
2390	char * newtitle;	int i;
2391		char *newtitle;
2392	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2393	if (index && i < *index)	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2394	continue;	if (index && i < *index)
2395	line = getLineByType(LT_TITLE, entry->lines);	continue;
2396	if (!line)	line = getLineByType(LT_TITLE, entry->lines);
2397	line = getLineByType(LT_MENUENTRY, entry->lines);	if (!line)
2398	if (!line)	line = getLineByType(LT_MENUENTRY, entry->lines);
2399	continue;	if (!line)
2400	newtitle = grub2ExtractTitle(line);	continue;
2401	if (!newtitle)	newtitle = grub2ExtractTitle(line);
2402	continue;	if (!newtitle)
2403	if (!strcmp(title, newtitle))	continue;
2404	break;	if (!strcmp(title, newtitle))
2405	}	break;
2406		}
2407
2408	if (!entry)	if (!entry)
2409	return NULL;	return NULL;
2410
2411	if (index)	if (index)
2412	*index = i;	*index = i;
2413	return entry;	return entry;
2414	}	}
2415
2416	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2417	struct singleEntry * entry;	{
2418		struct singleEntry *entry;
	entry = cfg->entries;
	while (index && entry) {
	entry = entry->next;
	index--;
	}
2419
2420	return entry;	entry = cfg->entries;
2421		while (index && entry) {
2422		entry = entry->next;
2423		index--;
2424		}
2425
2426		return entry;
2427	}	}
2428
2429	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 2150  struct singleEntry * findEntryByIndex(st	Line 2431  struct singleEntry * findEntryByIndex(st
2431	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2432	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2433	* bail. */	* bail. */
2434	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2435	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2436	struct singleEntry * entry, * entry2;	{
2437	int index;	struct singleEntry *entry, *entry2;
2438		int index;
2439	if (cfg->cfi->defaultIsSaved) {
2440	if (cfg->cfi->getEnv) {	if (cfg->cfi->defaultIsSaved) {
2441	char *defTitle = cfg->cfi->getEnv(cfg->cfi, "saved_entry");	if (cfg->cfi->getEnv) {
2442	if (defTitle) {	char *defTitle =
2443	int index = 0;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2444	if (isnumber(defTitle)) {	if (defTitle) {
2445	index = atoi(defTitle);	int index = 0;
2446	entry = findEntryByIndex(cfg, index);	if (isnumber(defTitle)) {
2447	} else {	index = atoi(defTitle);
2448	entry = findEntryByTitle(cfg, defTitle, &index);	entry = findEntryByIndex(cfg, index);
2449		} else {
2450		entry =
2451		findEntryByTitle(cfg, defTitle,
2452		&index);
2453		}
2454		if (entry
2455		&& suitableImage(entry, prefix, skipRemoved,
2456		flags)) {
2457		cfg->defaultImage = index;
2458		if (indexPtr)
2459		*indexPtr = index;
2460		return entry;
2461		}
2462		}
2463	}	}
2464		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2465		entry = findEntryByIndex(cfg, cfg->defaultImage);
2466	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2467	cfg->defaultImage = index;	if (indexPtr)
2468	if (indexPtr)	*indexPtr = cfg->defaultImage;
2469	*indexPtr = index;	return entry;
2470	return entry;	}
	}
	}
	}
	} else if (cfg->defaultImage > -1) {
	entry = findEntryByIndex(cfg, cfg->defaultImage);
	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
	if (indexPtr) *indexPtr = cfg->defaultImage;
	return entry;
2471	}	}
	}
2472
2473	index = 0;	index = 0;
2474	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2475	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2476	int j;	int j, unmodifiedIndex;
2477	for (j = 0; j < index; j++) {
2478	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2479	if (entry2->skip) index--;
2480	}	for (j = 0; j < unmodifiedIndex; j++) {
2481	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2482		if (entry2->skip)
2483		index--;
2484		}
2485		if (indexPtr)
2486		*indexPtr = index;
2487
2488	return entry;	return entry;
2489	}	}
2490
2491	index++;	index++;
2492	}	}
2493
2494	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2495		_("grubby fatal error: unable to find a suitable template\n"));
2496
2497	return NULL;	return NULL;
2498	}	}
2499
2500	char * findBootPrefix(void) {	char *findBootPrefix(void)
2501	struct stat sb, sb2;	{
2502		struct stat sb, sb2;
2503
2504	stat("/", &sb);	stat("/", &sb);
2505	#ifdef __ia64__	#ifdef __ia64__
2506	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2507	#else	#else
2508	stat("/boot", &sb2);	stat("/boot", &sb2);
2509	#endif	#endif
2510
2511	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2512	return strdup("");	return strdup("");
2513
2514	#ifdef __ia64__	#ifdef __ia64__
2515	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2516	#else	#else
2517	return strdup("/boot");	return strdup("/boot");
2518	#endif	#endif
2519	}	}
2520
2521	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2522	const char * prefix) {	const char *prefix)
2523	struct singleEntry * entry;	{
2524		struct singleEntry *entry;
	if (!image)
	return;
	/* check and see if we're removing the default image */
	if (isdigit(*image)) {
	entry = findEntryByPath(cfg, image, prefix, NULL);
	if(entry)
	entry->skip = 1;
	return;
	}
2525
2526	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2527	entry->skip = 1;	return;
	}
2528
2529	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2530	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2531	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2532	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2533	int i, j;	entry->skip = 1;
2534		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if ((index >= 0) && config->cfi->defaultIsIndex) {
	if (findEntryByIndex(config, index))
	config->defaultImage = index;
	else
	config->defaultImage = -1;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2535	}	}
	}
2536
2537	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2538	changes */	entry->skip = 1;
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2539	}	}
2540
2541	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2542	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2543	int j;	const char *prefix, int flags,
2544		int newDefaultBootEntryIndex, int newBootEntryIndex)
2545	if (config->fallbackImage == -1) return;	{
2546		struct singleEntry *bootEntry, *newDefault;
2547	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
	if (hasNew)
	config->fallbackImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2548
2549	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* initialize */
2550	struct singleLine * line;	currentLookupIndex = FIRST_ENTRY_INDEX;
	char * root = NULL;
	int i;
	int j;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2551
2552	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* handle the two cases where the user explictly picks the default
2553	printf("kernel=%s\n", line->elements[1].item);	* boot entry index as it would exist post-modification */
	else
	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	if (line->numElements >= 3) {
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2554
2555	i++;	/* Case 1: user chose to make the latest boot entry the default */
2556		if (newBootEntryIsDefault) {
2557		config->defaultImage = newBootEntryIndex;
2558		return;
2559	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2560
2561	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2562	i = 1;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2563	while (i < line->numElements) {	indexToVerify = newDefaultBootEntryIndex;
2564	if (!strncmp(line->elements[i].item, "root=", 5)) {
2565	root = line->elements[i].item + 5;	/* user chose to make latest boot entry the default */
2566	} else {	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2567	s = line->elements[i].item;	config->defaultImage = newBootEntryIndex;
2568		return;
2569		}
2570
2571	printf("%s%s", s, line->elements[i].indent);	/* the user picks the default index based on the
2572		* order of the bootloader configuration after
2573		* modification; ensure we are checking for the
2574		* existence of the correct entry */
2575		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2576		if (!config->isModified)
2577		indexToVerify--;
2578	}	}
2579
2580	i++;	/* verify the user selected index will exist */
2581	}	if (findEntryByIndex(config, indexToVerify)) {
2582		config->defaultImage = newDefaultBootEntryIndex;
2583		} else {
2584		config->defaultImage = NO_DEFAULT_ENTRY;
2585		}
2586
2587	s = line->elements[i - 1].indent;	return;
	printf("\"\n");
2588	}	}
	}
2589
2590	if (!root) {	/* handle cases where the index value may shift */
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2591
2592	if (root) {	/* check validity of existing default or first-entry-found
2593	char * s = alloca(strlen(root) + 1);	selection */
2594		if (defaultKernelPath) {
2595	strcpy(s, root);	/* we must initialize this */
2596	if (s[strlen(s) - 1] == '"')	firstKernelEntryIndex = 0;
2597	s[strlen(s) - 1] = '\0';	/* user requested first-entry-found */
2598	/* make sure the root doesn't have a trailing " */	if (!findEntryByPath(config, defaultKernelPath,
2599	printf("root=%s\n", s);	prefix, &firstKernelEntryIndex)) {
2600	}	/* don't change default if can't find match */
2601		config->defaultImage = NO_DEFAULT_ENTRY;
2602		return;
2603		}
2604
2605	line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, entry->lines);	config->defaultImage = firstKernelEntryIndex;
2606
2607	if (line && line->numElements >= 2) {	/* this is where we start looking for decrement later */
2608	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	currentLookupIndex = config->defaultImage;
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2609
2610	for (i = 1; i < line->numElements; i++)	if (isAddingBootEntry && !config->isModified &&
2611	printf("%s%s", line->elements[i].item, line->elements[i].indent);	(newBootEntryIndex < config->defaultImage)) {
2612	printf("\n");	/* increment because new entry added before default */
2613	}	config->defaultImage++;
2614		}
2615		} else {
2616		/* check to see if the default is stored in the environment */
2617		if (config->defaultImage < FIRST_ENTRY_INDEX) {
2618		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2619		{
2620		if (config->cfi->defaultIsSaved) {
2621		if (config->cfi->getEnv) {
2622		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2623
2624		if (defaultTitle) {
2625		if (isnumber(defaultTitle)) {
2626		currentLookupIndex = atoi(defaultTitle);
2627		} else {
2628		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2629		}
2630		/* set the default Image to an actual index */
2631		config->defaultImage = currentLookupIndex;
2632		}
2633		}
2634		}
2635		}
2636		} else {
2637		/* use pre-existing default entry from the file*/
2638		currentLookupIndex = config->defaultImage;
2639		}
2640
2641	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry
2642	if (line) {	&& (newBootEntryIndex <= config->defaultImage)) {
2643	printf("title=%s\n", line->elements[1].item);	config->defaultImage++;
2644	} else {
2645	char * title;	if (config->isModified) {
2646	line = getLineByType(LT_MENUENTRY, entry->lines);	currentLookupIndex++;
2647	if (line) {	}
2648	title = grub2ExtractTitle(line);	}
	if (title)
	printf("title=%s\n", title);
2649	}	}
	}
2650
2651	for (j = 0, line = entry->lines; line; line = line->next) {	/* sanity check - is this entry index valid? */
2652	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {	bootEntry = findEntryByIndex(config, currentLookupIndex);
2653	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2654	printf("mbmodule%d=", j);	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2655	else	/* entry is to be skipped or is invalid */
2656	printf("mbmodule%d=%s", j, prefix);	if (isAddingBootEntry) {
2657		config->defaultImage = newBootEntryIndex;
2658	for (i = 1; i < line->numElements; i++)	return;
2659	printf("%s%s", line->elements[i].item, line->elements[i].indent);	}
2660	printf("\n");	newDefault =
2661	j++;	findTemplate(config, prefix, &config->defaultImage, 1,
2662		flags);
2663		if (!newDefault) {
2664		config->defaultImage = NO_DEFAULT_ENTRY;
2665		}
2666
2667		return;
2668	}	}
	}
	}
2669
2670	int isSuseSystem(void) {	currentLookupIndex--;
	const char * path;
	const static char default_path[] = "/etc/SuSE-release";
2671
2672	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	/* decrement index by the total number of entries deleted */
	path = default_path;
2673
2674	if (!access(path, R_OK))	for (indexToVerify = currentLookupIndex;
2675	return 1;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	return 0;
	}
2676
2677	int isSuseGrubConf(const char * path) {	bootEntry = findEntryByIndex(config, indexToVerify);
	FILE * grubConf;
	char * line = NULL;
	size_t len = 0, res = 0;
	grubConf = fopen(path, "r");
	if (!grubConf) {
	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);
	return 0;
	}
2678
2679	while ((res = getline(&line, &len, grubConf)) != -1) {	if (bootEntry && bootEntry->skip) {
2680	if (!strncmp(line, "setup", 5)) {	config->defaultImage--;
2681	fclose(grubConf);	}
	free(line);
	return 1;
2682	}	}
2683	}	}
2684
2685	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	void setFallbackImage(struct grubConfig *config, int hasNew)
2686	path);	{
2687		struct singleEntry *entry, *entry2;
2688		int j;
2689
2690	fclose(grubConf);	if (config->fallbackImage == -1)
2691	free(line);	return;
	return 0;
	}
2692
2693	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	entry = findEntryByIndex(config, config->fallbackImage);
2694	FILE * grubConf;	if (!entry || entry->skip) {
2695	char * line = NULL;	config->fallbackImage = -1;
2696	size_t res = 0, len = 0;	return;
	if (!path) return 1;
	if (!lbaPtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2697	}	}
2698
2699	if (!strncmp(line, "setup", 5)) {	if (hasNew)
2700	if (strstr(line, "--force-lba")) {	config->fallbackImage++;
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2701
2702	free(line);	/* count the number of entries erased before this one */
2703	fclose(grubConf);	for (j = 0; j < config->fallbackImage; j++) {
2704	return 0;	entry2 = findEntryByIndex(config, j);
2705		if (entry2->skip)
2706		config->fallbackImage--;
2707		}
2708	}	}
2709
2710	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2711	FILE * grubConf;	{
2712	char * line = NULL;	struct singleLine *line;
2713	size_t res = 0, len = 0;	char *root = NULL;
2714	char * lastParamPtr = NULL;	int i;
2715	char * secLastParamPtr = NULL;	int j;
	char installDeviceNumber = '\0';
	char * bounds = NULL;
	if (!path) return 1;
	if (!devicePtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (strncmp(line, "setup", 5))
	continue;
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
	}
2716
2717	lastParamPtr = bounds = line + res;	printf("index=%d\n", index);
2718
2719	/* Last parameter in grub may be an optional IMAGE_DEVICE */	line =
2720	while (!isspace(*lastParamPtr))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2721	lastParamPtr--;	entry->lines);
2722	lastParamPtr++;	if (!line) {
2723		printf("non linux entry\n");
2724		return;
2725		}
2726
2727	secLastParamPtr = lastParamPtr - 2;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2728	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);	printf("kernel=%s\n", line->elements[1].item);
2729		else
2730		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2731
2732	if (lastParamPtr + 3 > bounds) {	if (line->numElements >= 3) {
2733	dbgPrintf("lastParamPtr going over boundary");	printf("args=\"");
2734	fclose(grubConf);	i = 2;
2735	free(line);	while (i < line->numElements) {
2736	return 1;	if (!strncmp(line->elements[i].item, "root=", 5)) {
2737	}	root = line->elements[i].item + 5;
2738	if (!strncmp(lastParamPtr, "(hd", 3))	} else {
2739	lastParamPtr += 3;	printf("%s%s", line->elements[i].item,
2740	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);	line->elements[i].indent);
2741		}
2742
2743	/*	i++;
2744	* Second last parameter will decide wether last parameter is	}
2745	* an IMAGE_DEVICE or INSTALL_DEVICE	printf("\"\n");
	*/
	while (!isspace(*secLastParamPtr))
	secLastParamPtr--;
	secLastParamPtr++;
	if (secLastParamPtr + 3 > bounds) {
	dbgPrintf("secLastParamPtr going over boundary");
	fclose(grubConf);
	free(line);
	return 1;
	}
	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
	if (!strncmp(secLastParamPtr, "(hd", 3)) {
	secLastParamPtr += 3;
	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
	installDeviceNumber = *secLastParamPtr;
2746	} else {	} else {
2747	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2748		if (line) {
2749		char *s;
2750
2751		printf("args=\"");
2752		i = 1;
2753		while (i < line->numElements) {
2754		if (!strncmp
2755		(line->elements[i].item, "root=", 5)) {
2756		root = line->elements[i].item + 5;
2757		} else {
2758		s = line->elements[i].item;
2759
2760		printf("%s%s", s,
2761		line->elements[i].indent);
2762		}
2763
2764		i++;
2765		}
2766
2767		s = line->elements[i - 1].indent;
2768		printf("\"\n");
2769		}
2770	}	}
2771
2772	*devicePtr = malloc(6);	if (!root) {
2773	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2774	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2775	fclose(grubConf);	root = line->elements[1].item;
2776	free(line);	}
	return 0;
	}
2777
2778	free(line);	if (root) {
2779	fclose(grubConf);	char *s = alloca(strlen(root) + 1);
	return 1;
	}
	int grubGetBootFromDeviceMap(const char * device,
	char ** bootPtr) {
	FILE * deviceMap;
	char * line = NULL;
	size_t res = 0, len = 0;
	char * devicePtr;
	char * bounds = NULL;
	const char * path;
	const static char default_path[] = "/boot/grub/device.map";
	if (!device) return 1;
	if (!bootPtr) return 1;
	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
	path = default_path;
	dbgPrintf("opening grub device.map file from: %s\n", path);
	deviceMap = fopen(path, "r");
	if (!deviceMap)
	return 1;
2780
2781	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2782	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2783	continue;	s[strlen(s) - 1] = '\0';
2784		/* make sure the root doesn't have a trailing " */
2785	if (line[res - 1] == '\n')	printf("root=%s\n", s);
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2786	}	}
2787
2788	devicePtr = line;	line =
2789	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2790		entry->lines);
2791
2792	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2793	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2794	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2795		else
2796		printf("initrd=%s", prefix);
2797
2798	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2799	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2800	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2801	devicePtr++;	printf("\n");
2802		}
2803
2804	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2805	break;	if (line) {
2806		char *entryTitle;
2807		/* if we can extractTitle, then it's a zipl config and
2808		* if not then we go ahead with what's existed prior */
2809		entryTitle = extractTitle(config, line);
2810		if (!entryTitle) {
2811		entryTitle=line->elements[1].item;
2812		}
2813		printf("title=%s\n", entryTitle);
2814		} else {
2815		char *title;
2816		line = getLineByType(LT_MENUENTRY, entry->lines);
2817		if (line) {
2818		title = grub2ExtractTitle(line);
2819		if (title)
2820		printf("title=%s\n", title);
2821		}
2822	}	}
	}
2823
2824	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2825	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2826	return 0;	if (!strncmp
2827		(prefix, line->elements[1].item, strlen(prefix)))
2828		printf("mbmodule%d=", j);
2829		else
2830		printf("mbmodule%d=%s", j, prefix);
2831
2832		for (i = 1; i < line->numElements; i++)
2833		printf("%s%s", line->elements[i].item,
2834		line->elements[i].indent);
2835		printf("\n");
2836		j++;
2837		}
2838		}
2839	}	}
2840
2841	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2842	char * grubDevice;	{
2843		const char *path;
2844		const static char default_path[] = "/etc/SuSE-release";
2845
2846	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2847	dbgPrintf("error looking for grub installation device\n");	path = default_path;
	else
	dbgPrintf("grubby installation device: %s\n", grubDevice);
	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
	dbgPrintf("error looking for grub boot device\n");
	else
	dbgPrintf("grubby boot device: %s\n", *bootPtr);
2848
2849	free(grubDevice);	if (!access(path, R_OK))
2850	return 0;	return 1;
2851		return 0;
2852	}	}
2853
2854	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2855	/*	{
2856	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2857	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2858	* grub on that system.	size_t len = 0, res = 0;
2859	*/
2860	const char * path;	grubConf = fopen(path, "r");
2861	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2862		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2863	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2864	path = default_path;	return 0;
2865		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2866
2867	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2868	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2869	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2870	}	free(line);
2871		return 1;
2872		}
2873		}
2874
2875	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2876		path);
2877
2878		fclose(grubConf);
2879		free(line);
2880		return 0;
2881	}	}
2882
2883	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2884	FILE * in;	{
2885	char buf[1024];	FILE *grubConf;
2886	char * chptr;	char *line = NULL;
2887	char * start;	size_t res = 0, len = 0;
2888	char * param;
2889		if (!path)
2890	in = fopen("/etc/conf.d/grub", "r");	return 1;
2891	if (!in) return 1;	if (!lbaPtr)
2892		return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
2893
2894	fclose(in);	grubConf = fopen(path, "r");
2895		if (!grubConf)
2896		return 1;
2897
2898	return 0;	while ((res = getline(&line, &len, grubConf)) != -1) {
2899	}	if (line[res - 1] == '\n')
2900		line[res - 1] = '\0';
2901		else if (len > res)
2902		line[res] = '\0';
2903		else {
2904		line = realloc(line, res + 1);
2905		line[res] = '\0';
2906		}
2907
2908	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2909	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2910	int lba;	*lbaPtr = 1;
2911		} else {
2912	if (isSuseSystem()) {	*lbaPtr = 0;
2913	if (parseSuseGrubConf(&lba, &boot)) {	}
2914	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2915	return;	break;
2916	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2917	}	}
	}
2918
2919	if (lba) printf("lba\n");	free(line);
2920	if (boot) {	fclose(grubConf);
2921	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2922	}	}
2923
2924	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2925	const char * prefix) {	{
2926	int i = 0;	FILE *grubConf;
2927	struct singleEntry * entry;	char *line = NULL;
2928	struct singleLine * line;	size_t res = 0, len = 0;
2929		char *lastParamPtr = NULL;
2930	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2931	if (!entry) {	char installDeviceNumber = '\0';
2932	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
2933
2934	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (!path)
2935	be a better way */	return 1;
2936	if (config->cfi == &grubConfigType) {	if (!devicePtr)
2937	dumpSysconfigGrub();	return 1;
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2938
2939	line = getLineByType(LT_LBA, config->theLines);	grubConf = fopen(path, "r");
2940	if (line) printf("lba\n");	if (!grubConf)
2941	}	return 1;
2942
2943	displayEntry(entry, prefix, i);	while ((res = getline(&line, &len, grubConf)) != -1) {
2944		if (strncmp(line, "setup", 5))
2945		continue;
2946
2947		if (line[res - 1] == '\n')
2948		line[res - 1] = '\0';
2949		else if (len > res)
2950		line[res] = '\0';
2951		else {
2952		line = realloc(line, res + 1);
2953		line[res] = '\0';
2954		}
2955
2956	i++;	lastParamPtr = bounds = line + res;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
2957
2958	return 0;	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2959		while (!isspace(*lastParamPtr))
2960		lastParamPtr--;
2961		lastParamPtr++;
2962
2963		secLastParamPtr = lastParamPtr - 2;
2964		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2965
2966		if (lastParamPtr + 3 > bounds) {
2967		dbgPrintf("lastParamPtr going over boundary");
2968		fclose(grubConf);
2969		free(line);
2970		return 1;
2971		}
2972		if (!strncmp(lastParamPtr, "(hd", 3))
2973		lastParamPtr += 3;
2974		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2975
2976		/*
2977		* Second last parameter will decide wether last parameter is
2978		* an IMAGE_DEVICE or INSTALL_DEVICE
2979		*/
2980		while (!isspace(*secLastParamPtr))
2981		secLastParamPtr--;
2982		secLastParamPtr++;
2983
2984		if (secLastParamPtr + 3 > bounds) {
2985		dbgPrintf("secLastParamPtr going over boundary");
2986		fclose(grubConf);
2987		free(line);
2988		return 1;
2989		}
2990		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2991		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2992		secLastParamPtr += 3;
2993		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2994		installDeviceNumber = *secLastParamPtr;
2995		} else {
2996		installDeviceNumber = *lastParamPtr;
2997		}
2998
2999		*devicePtr = malloc(6);
3000		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3001		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3002		fclose(grubConf);
3003		free(line);
3004		return 0;
3005		}
3006
3007		free(line);
3008		fclose(grubConf);
3009		return 1;
3010	}	}
3011
3012	struct singleLine * addLineTmpl(struct singleEntry * entry,	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3013	struct singleLine * tmplLine,	{
3014	struct singleLine * prevLine,	FILE *deviceMap;
3015	const char * val,	char *line = NULL;
3016	struct configFileInfo * cfi)	size_t res = 0, len = 0;
3017	{	char *devicePtr;
3018	struct singleLine * newLine = lineDup(tmplLine);	char *bounds = NULL;
3019		const char *path;
3020	if (isEfi && cfi == &grub2ConfigType) {	const static char default_path[] = "/boot/grub/device.map";
	enum lineType_e old = newLine->type;
	newLine->type = preferredLineType(newLine->type, cfi);
	if (old != newLine->type)
	newLine->elements[0].item = getKeyByType(newLine->type, cfi);
	}
3021
3022	if (val) {	if (!device)
3023	/* override the inherited value with our own.	return 1;
3024	* This is a little weak because it only applies to elements[1]	if (!bootPtr)
3025	*/	return 1;
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD|LT_KERNEL_EFI|LT_INITRD_EFI|LT_KERNEL_16|LT_INITRD_16)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
	}
	}
3026
3027	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3028	newLine->elements[0].item : "");	path = default_path;
3029
3030	if (!entry->lines) {	dbgPrintf("opening grub device.map file from: %s\n", path);
3031	/* first one on the list */	deviceMap = fopen(path, "r");
3032	entry->lines = newLine;	if (!deviceMap)
3033	} else if (prevLine) {	return 1;
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
3034
3035	return newLine;	while ((res = getline(&line, &len, deviceMap)) != -1) {
3036	}	if (!strncmp(line, "#", 1))
3037		continue;
3038
3039		if (line[res - 1] == '\n')
3040		line[res - 1] = '\0';
3041		else if (len > res)
3042		line[res] = '\0';
3043		else {
3044		line = realloc(line, res + 1);
3045		line[res] = '\0';
3046		}
3047
3048	/* val may be NULL */	devicePtr = line;
3049	struct singleLine *  addLine(struct singleEntry * entry,	bounds = line + res;
3050	struct configFileInfo * cfi,
3051	enum lineType_e type, char * defaultIndent,	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3052	const char * val) {	devicePtr++;
3053	struct singleLine * line, * prev;	dbgPrintf("device: %s\n", devicePtr);
3054	struct keywordTypes * kw;
3055	struct singleLine tmpl;	if (!strncmp(devicePtr, device, strlen(device))) {
3056		devicePtr += strlen(device);
3057	/* NB: This function shouldn't allocate items on the heap, rather on the	while (isspace(*devicePtr)
3058	* stack since it calls addLineTmpl which will make copies.	&& ((devicePtr + 1) <= bounds))
3059	*/	devicePtr++;
3060	if (type == LT_TITLE && cfi->titleBracketed) {
3061	/* we're doing a bracketed title (zipl) */	*bootPtr = strdup(devicePtr);
3062	tmpl.type = type;	break;
3063	tmpl.numElements = 1;	}
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
3064	}	}
	}
3065
3066	/* The last non-empty line gives us the indention to us and the line	free(line);
3067	to insert after. Note that comments are considered empty lines, which	fclose(deviceMap);
3068	may not be ideal? If there are no lines or we are looking at the	return 0;
3069	first line, we use defaultIndent (the first line is normally indented	}
3070	differently from the rest) */
3071	for (line = entry->lines, prev = NULL; line; line = line->next) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3072	if (line->numElements) prev = line;	{
3073	/* fall back on the last line if prev isn't otherwise set */	char *grubDevice;
	if (!line->next && !prev) prev = line;
	}
3074
3075	struct singleLine *menuEntry;	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3076	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	dbgPrintf("error looking for grub installation device\n");
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
3077	else	else
3078	tmpl.indent = defaultIndent ?: "";	dbgPrintf("grubby installation device: %s\n", grubDevice);
3079	} else if (tmpl.type != LT_MENUENTRY) {
3080	if (menuEntry)	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3081	tmpl.indent = "\t";	dbgPrintf("error looking for grub boot device\n");
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
3082	else	else
3083	tmpl.indent = prev->indent;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	}
3084
3085	return addLineTmpl(entry, &tmpl, prev, val, cfi);	free(grubDevice);
3086		return 0;
3087	}	}
3088
3089	void removeLine(struct singleEntry * entry, struct singleLine * line) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3090	struct singleLine * prev;	{
3091	int i;	/*
3092		* This SuSE grub configuration file at this location is not your
3093		* average grub configuration file, but instead the grub commands
3094		* used to setup grub on that system.
3095		*/
3096		const char *path;
3097		const static char default_path[] = "/etc/grub.conf";
3098
3099	for (i = 0; i < line->numElements; i++) {	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3100	free(line->elements[i].item);	path = default_path;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
3101
3102	if (line == entry->lines) {	if (!isSuseGrubConf(path))
3103	entry->lines = line->next;	return 1;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3104
3105	free(line);	if (lbaPtr) {
3106	}	*lbaPtr = 0;
3107		if (suseGrubConfGetLba(path, lbaPtr))
3108		return 1;
3109		}
3110
3111	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	if (bootPtr) {
3112	{	*bootPtr = NULL;
3113	struct singleLine newLine = {	suseGrubConfGetBoot(path, bootPtr);
	.indent = tmplLine->indent,
	.type = tmplLine->type,
	.next = tmplLine->next,
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
3114	}	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
3115
3116	line->elements = realloc(line->elements, (line->numElements + 1) *	return 0;
3117	sizeof(*line->elements));	}
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
3118
3119	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3120	/* move the end-of-line forward */	{
3121	line->elements[insertHere].indent =	FILE *in;
3122	line->elements[insertHere-1].indent;	char buf[1024];
3123	line->elements[insertHere-1].indent = strdup(indent);	char *chptr;
3124	} else {	char *start;
3125	line->elements[insertHere].indent = strdup(indent);	char *param;
	}
3126
3127	line->numElements++;	in = fopen("/etc/sysconfig/grub", "r");
3128		if (!in)
3129		return 1;
3130
3131	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	if (lbaPtr)
3132	line->elements[0].item,	*lbaPtr = 0;
3133	line->elements[insertHere].item,	if (bootPtr)
3134	line->elements[insertHere].indent,	*bootPtr = NULL;
3135	insertHere);
3136	}	while (fgets(buf, sizeof(buf), in)) {
3137		start = buf;
3138		while (isspace(*start))
3139		start++;
3140		if (*start == '#')
3141		continue;
3142
3143		chptr = strchr(start, '=');
3144		if (!chptr)
3145		continue;
3146		chptr--;
3147		while (*chptr && isspace(*chptr))
3148		chptr--;
3149		chptr++;
3150		*chptr = '\0';
3151
3152		param = chptr + 1;
3153		while (*param && isspace(*param))
3154		param++;
3155		if (*param == '=') {
3156		param++;
3157		while (*param && isspace(*param))
3158		param++;
3159		}
3160
3161	static void removeElement(struct singleLine * line, int removeHere) {	chptr = param;
3162	int i;	while (*chptr && !isspace(*chptr))
3163		chptr++;
3164		*chptr = '\0';
3165
3166		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3167		*lbaPtr = 1;
3168		else if (!strcmp(start, "boot") && bootPtr)
3169		*bootPtr = strdup(param);
3170		}
3171
3172	/* sanity check */	fclose(in);
	if (removeHere >= line->numElements) return;
3173
3174	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	return 0;
3175	removeHere, line->elements[removeHere].item);	}
3176
3177	free(line->elements[removeHere].item);	void dumpSysconfigGrub(void)
3178		{
3179		char *boot = NULL;
3180		int lba;
3181
3182	if (removeHere > 1) {	if (isSuseSystem()) {
3183	/* previous argument gets this argument's post-indentation */	if (parseSuseGrubConf(&lba, &boot)) {
3184	free(line->elements[removeHere-1].indent);	free(boot);
3185	line->elements[removeHere-1].indent =	return;
3186	line->elements[removeHere].indent;	}
3187	} else {	} else {
3188	free(line->elements[removeHere].indent);	if (parseSysconfigGrub(&lba, &boot)) {
3189	}	free(boot);
3190		return;
3191		}
3192		}
3193
3194	/* now collapse the array, but don't bother to realloc smaller */	if (lba)
3195	for (i = removeHere; i < line->numElements - 1; i++)	printf("lba\n");
3196	line->elements[i] = line->elements[i + 1];	if (boot) {
3197		printf("boot=%s\n", boot);
3198	line->numElements--;	free(boot);
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements;
	int doreplace;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
3199	}	}
3200	}	}
3201
3202	if (!removeArgs) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3203	oldArgs = malloc(sizeof(*oldArgs));	{
3204	*oldArgs = NULL;	int i = 0;
3205	} else {	struct singleEntry *entry;
3206	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	struct singleLine *line;
3207	fprintf(stderr,
3208	_("grubby: error separating arguments '%s'\n"), removeArgs);	entry = findEntryByPath(config, kernel, prefix, &i);
3209	free(newArgs);	if (!entry) {
3210	return 1;	fprintf(stderr, _("grubby: kernel not found\n"));
3211		return 1;
3212	}	}
	}
3213
3214		/* this is a horrible hack to support /etc/sysconfig/grub; there must
3215		be a better way */
3216		if (config->cfi == &grubConfigType) {
3217		dumpSysconfigGrub();
3218		} else {
3219		line = getLineByType(LT_BOOT, config->theLines);
3220		if (line && line->numElements >= 1) {
3221		printf("boot=%s\n", line->elements[1].item);
3222		}
3223
3224	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	line = getLineByType(LT_LBA, config->theLines);
3225	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	if (line)
3226		printf("lba\n");
3227		}
3228
3229	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	displayEntry(config, entry, prefix, i);
	&& !multibootArgs);
3230
3231	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	i++;
3232		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3233		displayEntry(config, entry, prefix, i);
3234		i++;
3235		}
3236
3237	if (multibootArgs && !entry->multiboot)	return 0;
3238	continue;	}
3239
3240	/* Determine where to put the args.  If this config supports	struct singleLine *addLineTmpl(struct singleEntry *entry,
3241	* LT_KERNELARGS, use that.  Otherwise use	struct singleLine *tmplLine,
3242	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	struct singleLine *prevLine,
3243	*/	const char *val, struct configFileInfo *cfi)
3244	if (useKernelArgs) {	{
3245	line = getLineByType(LT_KERNELARGS, entry->lines);	struct singleLine *newLine = lineDup(tmplLine);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
3246
3247	} else {	if (isEfi && cfi == &grub2ConfigType) {
3248	line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);	enum lineType_e old = newLine->type;
3249	if (!line) {	newLine->type = preferredLineType(newLine->type, cfi);
3250	/* no LT_KERNEL or LT_MBMODULE in this entry? */	if (old != newLine->type)
3251	continue;	newLine->elements[0].item =
3252	}	getKeyByType(newLine->type, cfi);
	firstElement = 2;
3253	}	}
3254
3255	/* handle the elilo case which does:	if (val) {
3256	*   append="hypervisor args -- kernel args"	/* override the inherited value with our own.
3257	*/	* This is a little weak because it only applies to elements[1]
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
3258	*/	*/
3259	insertElement(line, "--", firstElement, cfg->cfi);	if (newLine->numElements > 1)
3260	i = firstElement;	removeElement(newLine, 1);
3261	}	insertElement(newLine, val, 1, cfi);
3262	if (!multibootArgs) {
3263	/* kernel args start after the -- */	/* but try to keep the rootspec from the template... sigh */
3264	firstElement = i + 1;	if (tmplLine->
3265	}	type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3266	} else if (cfg->cfi->mbConcatArgs) {	LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3267	/* this is a non-multiboot entry, remove hyper args */	LT_INITRD_16)) {
3268	for (i = firstElement; i < line->numElements; i++) {	size_t rs = getRootSpecifier(tmplLine->elements[1].item);
3269	if (!strcmp(line->elements[i].item, "--"))	if (rs > 0) {
3270	break;	free(newLine->elements[1].item);
3271	}	newLine->elements[1].item = sdupprintf(
3272	if (i < line->numElements) {	"%.*s%s", (int) rs,
3273	/* remove args up to -- */	tmplLine->elements[1].item, val);
3274	while (strcmp(line->elements[firstElement].item, "--"))	}
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
	if (i < line->numElements && doreplace) {
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
	/* root= replacement */
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
3275	}	}
	}
	else {
	/* insert/append */
	insertElement(line, *arg, i, cfg->cfi);
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
3276	}	}
	}
3277
3278	free(newArgs);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3279	free(oldArgs);	newLine->elements[0].item : "");
3280
3281	return 0;	if (!entry->lines) {
3282	}	/* first one on the list */
3283		entry->lines = newLine;
3284	int updateImage(struct grubConfig * cfg, const char * image,	} else if (prevLine) {
3285	const char * prefix, const char * addArgs,	/* add after prevLine */
3286	const char * removeArgs,	newLine->next = prevLine->next;
3287	const char * addMBArgs, const char * removeMBArgs) {	prevLine->next = newLine;
	int rc = 0;
	if (!image) return rc;
	/* update the main args first... */
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int addMBInitrd(struct grubConfig * cfg, const char *newMBKernel,
	const char * image, const char * prefix, const char * initrd,
	const char * title) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_MBMODULE, entry->lines);
	if (!kernelLine) continue;
	/* if title is supplied, the entry's title must match it. */
	if (title) {
	char *linetitle;
	line = getLineByType(LT_TITLE|LT_MENUENTRY, entry->lines);
	if (!line)
	continue;
	linetitle = extractTitle(cfg, line);
	if (!linetitle)
	continue;
	if (strcmp(title, linetitle)) {
	free(linetitle);
	continue;
	}
	free(linetitle);
	}
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, preferredLineType(LT_MBMODULE,cfg->cfi),
	kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
	return 1;
3288	}	}
3289
3290	break;	return newLine;
	}
	return 0;
3291	}	}
3292
3293	int updateInitrd(struct grubConfig * cfg, const char * image,	/* val may be NULL */
3294	const char * prefix, const char * initrd, const char * title) {	struct singleLine *addLine(struct singleEntry *entry,
3295	struct singleEntry * entry;	struct configFileInfo *cfi,
3296	struct singleLine * line, * kernelLine, *endLine = NULL;	enum lineType_e type, char *defaultIndent,
3297	int index = 0;	const char *val)
3298		{
3299	if (!image) return 0;	struct singleLine *line, *prev;
3300		struct keywordTypes *kw;
3301	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	struct singleLine tmpl;
3302	kernelLine = getLineByType(LT_KERNEL|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);
3303	if (!kernelLine) continue;	/* NB: This function shouldn't allocate items on the heap, rather on
3304		* the stack since it calls addLineTmpl which will make copies.
3305	/* if title is supplied, the entry's title must match it. */	*/
3306	if (title) {	if (type == LT_TITLE && cfi->titleBracketed) {
3307	char *linetitle;	/* we're doing a bracketed title (zipl) */
3308		tmpl.type = type;
3309	line = getLineByType(LT_TITLE|LT_MENUENTRY, entry->lines);	tmpl.numElements = 1;
3310	if (!line)	tmpl.elements = alloca(sizeof(*tmpl.elements));
3311	continue;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3312		sprintf(tmpl.elements[0].item, "[%s]", val);
3313	linetitle = extractTitle(cfg, line);	tmpl.elements[0].indent = "";
3314	if (!linetitle)	val = NULL;
3315	continue;	} else if (type == LT_MENUENTRY) {
3316	if (strcmp(title, linetitle)) {	char *lineend = "--class gnu-linux --class gnu --class os {";
3317	free(linetitle);	if (!val) {
3318	continue;	fprintf(stderr,
3319	}	"Line type LT_MENUENTRY requires a value\n");
3320	free(linetitle);	abort();
3321	}	}
3322		kw = getKeywordByType(type, cfi);
3323	line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, entry->lines);	if (!kw) {
3324	if (line)	fprintf(stderr,
3325	removeLine(entry, line);	"Looking up keyword for unknown type %d\n",
3326	if (prefix) {	type);
3327	int prefixLen = strlen(prefix);	abort();
3328	if (!strncmp(initrd, prefix, prefixLen))	}
3329	initrd += prefixLen;	tmpl.indent = "";
3330	}	tmpl.type = type;
3331	endLine = getLineByType(LT_ENTRY_END, entry->lines);	tmpl.numElements = 3;
3332	if (endLine)	tmpl.elements =
3333	removeLine(entry, endLine);	alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3334	enum lineType_e lt;	tmpl.elements[0].item = kw->key;
3335	switch(kernelLine->type) {	tmpl.elements[0].indent = alloca(2);
3336	case LT_KERNEL:	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3337	lt = LT_INITRD;	tmpl.elements[1].item = (char *)val;
3338	break;	tmpl.elements[1].indent = alloca(2);
3339	case LT_KERNEL_EFI:	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3340	lt = LT_INITRD_EFI;	tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3341	break;	strcpy(tmpl.elements[2].item, lineend);
3342	case LT_KERNEL_16:	tmpl.elements[2].indent = "";
3343	lt = LT_INITRD_16;	} else {
3344	break;	kw = getKeywordByType(type, cfi);
3345	default:	if (!kw) {
3346	lt = preferredLineType(LT_INITRD, cfg->cfi);	fprintf(stderr,
3347	}	"Looking up keyword for unknown type %d\n",
3348	line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);	type);
3349	if (!line)	abort();
3350	return 1;	}
3351	if (endLine) {	tmpl.type = type;
3352	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);	tmpl.numElements = val ? 2 : 1;
3353	if (!line)	tmpl.elements =
3354	return 1;	alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3355		tmpl.elements[0].item = kw->key;
3356		tmpl.elements[0].indent = alloca(2);
3357		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3358		if (val) {
3359		tmpl.elements[1].item = (char *)val;
3360		tmpl.elements[1].indent = "";
3361		}
3362	}	}
3363
3364	break;	/* The last non-empty line gives us the indention to us and the line
3365	}	* to insert after. Note that comments are considered empty lines,
3366		* which may not be ideal? If there are no lines or we are looking at
3367		* the first line, we use defaultIndent (the first line is normally
3368		* indented differently from the rest) */
3369		for (line = entry->lines, prev = NULL; line; line = line->next) {
3370		if (line->numElements)
3371		prev = line;
3372		/* fall back on the last line if prev isn't otherwise set */
3373		if (!line->next && !prev)
3374		prev = line;
3375		}
3376
3377		struct singleLine *menuEntry;
3378		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3379		if (tmpl.type == LT_ENTRY_END) {
3380		if (menuEntry)
3381		tmpl.indent = menuEntry->indent;
3382		else
3383		tmpl.indent = defaultIndent ? : "";
3384		} else if (tmpl.type != LT_MENUENTRY) {
3385		if (menuEntry)
3386		tmpl.indent = "\t";
3387		else if (prev == entry->lines)
3388		tmpl.indent = defaultIndent ? : "";
3389		else
3390		tmpl.indent = prev->indent;
3391		}
3392
3393	return 0;	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3394	}	}
3395
3396	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3397	int fd;	{
3398	unsigned char bootSect[512];	struct singleLine *prev;
3399	int offset;	int i;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	close(fd);
	/* first three bytes should match, a jmp short should be in there */
	if (memcmp(boot, bootSect, 3))
	return 0;
3400
3401	if (boot[1] == JMP_SHORT_OPCODE) {	for (i = 0; i < line->numElements; i++) {
3402	offset = boot[2] + 2;	free(line->elements[i].item);
3403	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	free(line->elements[i].indent);
3404	offset = (boot[3] << 8) + boot[2] + 2;	}
3405	} else if (boot[0] == JMP_SHORT_OPCODE) {	free(line->elements);
3406	offset = boot[1] + 2;	free(line->indent);
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
3407
3408	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (line == entry->lines) {
3409	return 0;	entry->lines = line->next;
3410		} else {
3411		prev = entry->lines;
3412		while (prev->next != line)
3413		prev = prev->next;
3414		prev->next = line->next;
3415		}
3416
3417	return 2;	free(line);
3418	}	}
3419
3420	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3421	int fd;	{
3422	char buf[65536];	struct singleLine newLine = {
3423	char * end;	.indent = tmplLine->indent,
3424	char * chptr;	.type = tmplLine->type,
3425	char * chptr2;	.next = tmplLine->next,
3426	int rc;	};
3427		int firstQuotedItem = -1;
3428	/* it's on raid; we need to parse /proc/mdstat and check all of the	int quoteLen = 0;
3429	*raw* devices listed in there */	int j;
3430		int element = 0;
3431	if (!strncmp(mdDev, "/dev/", 5))	char *c;
	mdDev += 5;
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
	return 2;
	}
3432
3433	rc = read(fd, buf, sizeof(buf) - 1);	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3434	if (rc < 0 || rc == (sizeof(buf) - 1)) {	strcpy(c, tmplLine->elements[0].item);
3435	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	insertElement(&newLine, c, element++, cfi);
3436	strerror(errno));	free(c);
3437	close(fd);	c = NULL;
3438	return 2;
3439	}	for (j = 1; j < tmplLine->numElements; j++) {
3440	close(fd);	if (firstQuotedItem == -1) {
3441	buf[rc] = '\0';	quoteLen += strlen(tmplLine->elements[j].item);
3442
3443		if (isquote(tmplLine->elements[j].item[0])) {
3444		firstQuotedItem = j;
3445		quoteLen +=
3446		strlen(tmplLine->elements[j].indent);
3447		} else {
3448		c = malloc(quoteLen + 1);
3449		strcpy(c, tmplLine->elements[j].item);
3450		insertElement(&newLine, c, element++, cfi);
3451		free(c);
3452		quoteLen = 0;
3453		}
3454		} else {
3455		int itemlen = strlen(tmplLine->elements[j].item);
3456		quoteLen += itemlen;
3457		quoteLen += strlen(tmplLine->elements[j].indent);
3458
3459		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3460		c = malloc(quoteLen + 1);
3461		c[0] = '\0';
3462		for (int i = firstQuotedItem; i < j + 1; i++) {
3463		strcat(c, tmplLine->elements[i].item);
3464		strcat(c, tmplLine->elements[i].indent);
3465		}
3466		insertElement(&newLine, c, element++, cfi);
3467		free(c);
3468
3469	chptr = buf;	firstQuotedItem = -1;
3470	while (*chptr) {	quoteLen = 0;
3471	end = strchr(chptr, '\n');	}
3472	if (!end) break;	}
3473	*end = '\0';	}
3474		while (tmplLine->numElements)
3475		removeElement(tmplLine, 0);
3476		if (tmplLine->elements)
3477		free(tmplLine->elements);
3478
3479		tmplLine->numElements = newLine.numElements;
3480		tmplLine->elements = newLine.elements;
3481		}
3482
3483	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	static void insertElement(struct singleLine *line,
3484	chptr[strlen(mdDev)] == ' ') {	const char *item, int insertHere,
3485		struct configFileInfo *cfi)
3486		{
3487		struct keywordTypes *kw;
3488		char indent[2] = "";
3489
3490	/* found the device */	/* sanity check */
3491	while (*chptr && *chptr != ':') chptr++;	if (insertHere > line->numElements) {
3492	chptr++;	dbgPrintf
3493	while (*chptr && isspace(*chptr)) chptr++;	("insertElement() adjusting insertHere from %d to %d\n",
3494		insertHere, line->numElements);
3495	/* skip the "active" bit */	insertHere = line->numElements;
3496	while (*chptr && !isspace(*chptr)) chptr++;	}
3497	while (*chptr && isspace(*chptr)) chptr++;
3498		line->elements = realloc(line->elements, (line->numElements + 1) *
3499	/* skip the raid level */	sizeof(*line->elements));
3500	while (*chptr && !isspace(*chptr)) chptr++;	memmove(&line->elements[insertHere + 1],
3501	while (*chptr && isspace(*chptr)) chptr++;	&line->elements[insertHere],
3502		(line->numElements - insertHere) * sizeof(*line->elements));
3503	/* everything else is partition stuff */	line->elements[insertHere].item = strdup(item);
3504	while (*chptr) {
3505	chptr2 = chptr;	kw = getKeywordByType(line->type, cfi);
3506	while (*chptr2 && *chptr2 != '[') chptr2++;
3507	if (!*chptr2) break;	if (line->numElements == 0) {
3508		indent[0] = '\0';
3509	/* yank off the numbers at the end */	} else if (insertHere == 0) {
3510	chptr2--;	indent[0] = kw->nextChar;
3511	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	} else if (kw->separatorChar != '\0') {
3512	chptr2++;	indent[0] = kw->separatorChar;
3513	*chptr2 = '\0';	} else {
3514		indent[0] = ' ';
3515	/* Better, now we need the /dev/ back. We're done with	}
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3516
3517	/*  we're good to go */	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3518	return 2;	/* move the end-of-line forward */
3519		line->elements[insertHere].indent =
3520		line->elements[insertHere - 1].indent;
3521		line->elements[insertHere - 1].indent = strdup(indent);
3522		} else {
3523		line->elements[insertHere].indent = strdup(indent);
3524	}	}
3525
3526	chptr = end + 1;	line->numElements++;
	}
3527
3528	fprintf(stderr,	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3529	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	line->elements[0].item,
3530	mdDev);	line->elements[insertHere].item,
3531	return 0;	line->elements[insertHere].indent, insertHere);
3532	}	}
3533
3534	int checkForLilo(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3535	int fd;	{
3536	unsigned char boot[512];	int i;
	struct singleLine * line;
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
	if (line->numElements != 2) return 1;
3537
3538	fd = open("/boot/boot.b", O_RDONLY);	/* sanity check */
3539	if (fd < 0) {	if (removeHere >= line->numElements)
3540	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	return;
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3541
3542	if (read(fd, boot, 512) != 512) {	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3543	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	removeHere, line->elements[removeHere].item);
	"/boot/boot.b", strerror(errno));
	return 1;
	}
	close(fd);
3544
3545	if (!strncmp("/dev/md", line->elements[1].item, 7))	free(line->elements[removeHere].item);
	return checkLiloOnRaid(line->elements[1].item, boot);
3546
3547	return checkDeviceBootloader(line->elements[1].item, boot);	if (removeHere > 1) {
3548	}	/* previous argument gets this argument's post-indentation */
3549		free(line->elements[removeHere - 1].indent);
3550		line->elements[removeHere - 1].indent =
3551		line->elements[removeHere].indent;
3552		} else {
3553		free(line->elements[removeHere].indent);
3554		}
3555
3556	int checkForGrub2(struct grubConfig * config) {	/* now collapse the array, but don't bother to realloc smaller */
3557	if (!access("/etc/grub.d/", R_OK))	for (i = removeHere; i < line->numElements - 1; i++)
3558	return 2;	line->elements[i] = line->elements[i + 1];
3559
3560	return 1;	line->numElements--;
3561	}	}
3562
3563	int checkForGrub(struct grubConfig * config) {	static int argNameMatch(const char *one, const char *two)
3564	int fd;	{
3565	unsigned char bootSect[512];	char *first, *second;
3566	char * boot;	char *chptra, *chptrb;
3567	int onSuse = isSuseSystem();	int rc;
3568
3569	if (onSuse) {	first = strcpy(alloca(strlen(one) + 1), one);
3570	if (parseSuseGrubConf(NULL, &boot))	second = strcpy(alloca(strlen(two) + 1), two);
	return 0;
	} else {
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
	}
3571
3572	/* assume grub is not installed -- not an error condition */	chptra = strchr(first, '=');
3573	if (!boot)	if (chptra)
3574	return 0;	*chptra = '\0';
3575
3576	fd = open("/boot/grub/stage1", O_RDONLY);	chptrb = strchr(second, '=');
3577	if (fd < 0)	if (chptrb)
3578	/* this doesn't exist if grub hasn't been installed */	*chptrb = '\0';
	return 0;
3579
3580	if (read(fd, bootSect, 512) != 512) {	rc = strcmp(first, second);
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
	close(fd);
	return 1;
	}
	close(fd);
3581
3582	/* The more elaborate checks do not work on SuSE. The checks done	if (chptra)
3583	* seem to be reasonble (at least for now), so just return success	*chptra = '=';
3584	*/	if (chptrb)
3585	if (onSuse)	*chptrb = '=';
	return 2;
3586
3587	return checkDeviceBootloader(boot, bootSect);	return rc;
3588	}	}
3589
3590	int checkForExtLinux(struct grubConfig * config) {	static int argHasValue(const char *arg)
3591	int fd;	{
3592	unsigned char bootSect[512];	char *chptr;
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
	printf("entered: checkForExtLinux()\n");
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
3593
3594	/* assume grub is not installed -- not an error condition */	chptr = strchr(arg, '=');
3595	if (!boot)	if (chptr)
3596		return 1;
3597	return 0;	return 0;
3598		}
3599
3600	fd = open(executable, O_RDONLY);	static int argValueMatch(const char *one, const char *two)
3601	if (fd < 0)	{
3602	/* this doesn't exist if grub hasn't been installed */	char *first, *second;
3603	return 0;	char *chptra, *chptrb;
3604
3605	if (read(fd, bootSect, 512) != 512) {	first = strcpy(alloca(strlen(one) + 1), one);
3606	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	second = strcpy(alloca(strlen(two) + 1), two);
	executable, strerror(errno));
	return 1;
	}
	close(fd);
3607
3608	return checkDeviceBootloader(boot, bootSect);	chptra = strchr(first, '=');
3609	}	if (chptra)
3610		chptra += 1;
3611
3612	int checkForYaboot(struct grubConfig * config) {	chptrb = strchr(second, '=');
3613	/*	if (chptrb)
3614	* This is a simplistic check that we consider good enough for own puporses	chptrb += 1;
	*
	* If we were to properly check if yaboot is *installed* we'd need to:
	* 1) get the system boot device (LT_BOOT)
	* 2) considering it's a raw filesystem, check if the yaboot binary matches
	*    the content on the boot device
	* 3) if not, copy the binary to a temporary file and run "addnote" on it
	* 4) check again if binary and boot device contents match
	*/
	if (!access("/etc/yaboot.conf", R_OK))
	return 2;
3615
3616	return 1;	if (!chptra && !chptrb)
3617		return 0;
3618		else if (!chptra)
3619		return *chptrb - 0;
3620		else if (!chptrb)
3621		return 0 - *chptra;
3622		else
3623		return strcmp(chptra, chptrb);
3624	}	}
3625
3626	int checkForElilo(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3627	if (!access("/etc/elilo.conf", R_OK))	const char *prefix, const char *addArgs,
3628	return 2;	const char *removeArgs, int multibootArgs)
3629		{
3630	return 1;	struct singleEntry *entry;
3631	}	struct singleLine *line, *rootLine;
3632		int index = 0;
3633		int i, k;
3634		const char **newArgs, **oldArgs;
3635		const char **arg;
3636		int useKernelArgs, useRoot;
3637		int firstElement;
3638		int *usedElements;
3639		int doreplace;
3640
3641	static char * getRootSpecifier(char * str) {	if (!image)
3642	char * idx, * rootspec = NULL;	return 0;
3643
3644	if (*str == '(') {	if (!addArgs) {
3645	idx = rootspec = strdup(str);	newArgs = malloc(sizeof(*newArgs));
3646	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	*newArgs = NULL;
3647	*(++idx) = '\0';	} else {
3648	}	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3649	return rootspec;	fprintf(stderr,
3650	}	_("grubby: error separating arguments '%s'\n"),
3651		addArgs);
3652		return 1;
3653		}
3654		}
3655
3656	static char * getInitrdVal(struct grubConfig * config,	if (!removeArgs) {
3657	const char * prefix, struct singleLine *tmplLine,	oldArgs = malloc(sizeof(*oldArgs));
3658	const char * newKernelInitrd,	*oldArgs = NULL;
3659	const char ** extraInitrds, int extraInitrdCount)	} else {
3660	{	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3661	char *initrdVal, *end;	fprintf(stderr,
3662	int i;	_("grubby: error separating arguments '%s'\n"),
3663	size_t totalSize;	removeArgs);
3664	size_t prefixLen;	free(newArgs);
3665	char separatorChar;	return 1;
3666		}
3667	prefixLen = strlen(prefix);	}
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3668
3669	initrdVal = end = malloc(totalSize);	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3670		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3671
3672	end = stpcpy (end, newKernelInitrd + prefixLen);	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3673		&& !multibootArgs);
3674
3675	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	for (i = 0; i < extraInitrdCount; i++) {
	const char *extraInitrd;
	int j;
3676
3677	extraInitrd = extraInitrds[i] + prefixLen;	if (multibootArgs && !entry->multiboot)
3678	/* Don't add entries that are already there */	continue;
	if (tmplLine != NULL) {
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
3679
3680	if (j != tmplLine->numElements)	/* Determine where to put the args.  If this config supports
3681	continue;	* LT_KERNELARGS, use that.  Otherwise use
3682	}	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3683		*/
3684		if (useKernelArgs) {
3685		line = getLineByType(LT_KERNELARGS, entry->lines);
3686		if (!line) {
3687		/* no LT_KERNELARGS, need to add it */
3688		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3689		cfg->secondaryIndent, NULL);
3690		}
3691		firstElement = 1;
3692
3693	*end++ = separatorChar;	} else if (multibootArgs) {
3694	end = stpcpy(end, extraInitrd);	line = getLineByType(LT_HYPER, entry->lines);
3695	}	if (!line) {
3696		/* a multiboot entry without LT_HYPER? */
3697		continue;
3698		}
3699		firstElement = 2;
3700
3701	return initrdVal;	} else {
3702	}	line =
3703		getLineByType(LT_KERNEL | LT_MBMODULE |
3704		LT_KERNEL_EFI | LT_KERNEL_16,
3705		entry->lines);
3706		if (!line) {
3707		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3708		continue;
3709		}
3710		firstElement = 2;
3711		}
3712
3713	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	/* handle the elilo case which does:
3714	const char * prefix,	*   append="hypervisor args -- kernel args"
3715	const char * newKernelPath, const char * newKernelTitle,	*/
3716	const char * newKernelArgs, const char * newKernelInitrd,	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3717	const char ** extraInitrds, int extraInitrdCount,	/* this is a multiboot entry, make sure there's
3718	const char * newMBKernel, const char * newMBKernelArgs,	* -- on the args line
3719	const char * newDevTreePath) {	*/
3720	struct singleEntry * new;	for (i = firstElement; i < line->numElements; i++) {
3721	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	if (!strcmp(line->elements[i].item, "--"))
3722	int needs;	break;
3723	char * chptr;	}
3724		if (i == line->numElements) {
3725	if (!newKernelPath) return 0;	/* assume all existing args are kernel args,
3726		* prepend -- to make it official
3727	/* if the newKernelTitle is too long silently munge it into something	*/
3728	* we can live with. truncating is first check, then we'll just mess with	insertElement(line, "--", firstElement,
3729	* it until it looks better */	cfg->cfi);
3730	if (config->cfi->maxTitleLength &&	i = firstElement;
3731	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	}
3732	char * buf = alloca(config->cfi->maxTitleLength + 7);	if (!multibootArgs) {
3733	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	/* kernel args start after the -- */
3734	int i = 1;	firstElement = i + 1;
3735		}
3736		} else if (cfg->cfi->mbConcatArgs) {
3737		/* this is a non-multiboot entry, remove hyper args */
3738		for (i = firstElement; i < line->numElements; i++) {
3739		if (!strcmp(line->elements[i].item, "--"))
3740		break;
3741		}
3742		if (i < line->numElements) {
3743		/* remove args up to -- */
3744		while (strcmp
3745		(line->elements[firstElement].item,
3746		"--"))
3747		removeElement(line, firstElement);
3748		/* remove -- */
3749		removeElement(line, firstElement);
3750		}
3751		}
3752
3753	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	usedElements = calloc(line->numElements, sizeof(*usedElements));
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
	}
3754
3755	newKernelTitle = buf + 6;	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	}
3756
3757	new = malloc(sizeof(*new));	doreplace = 1;
3758	new->skip = 0;	for (i = firstElement; i < line->numElements; i++) {
3759	new->multiboot = 0;	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3760	new->next = config->entries;	!strcmp(line->elements[i].item, "--")) {
3761	new->lines = NULL;	/* reached the end of hyper args, insert here */
3762	config->entries = new;	doreplace = 0;
3763		break;
3764	/* copy/update from the template */	}
3765	needs = NEED_KERNEL | NEED_TITLE;	if (usedElements[i])
3766	if (newKernelInitrd)	continue;
3767	needs |= NEED_INITRD;	if (!argNameMatch(line->elements[i].item, *arg)) {
3768	if (newMBKernel) {	usedElements[i] = 1;
3769	needs |= NEED_MB;	break;
3770	new->multiboot = 1;	}
3771	}	}
	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
	needs |= NEED_DEVTREE;
3772
3773	if (template) {	if (i < line->numElements && doreplace) {
3774	for (masterLine = template->lines;	/* direct replacement */
3775	masterLine && (tmplLine = lineDup(masterLine));	free(line->elements[i].item);
3776	lineFree(tmplLine), masterLine = masterLine->next)	line->elements[i].item = strdup(*arg);
3777	{
3778	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3779		/* root= replacement */
3780	/* skip comments */	rootLine = getLineByType(LT_ROOT, entry->lines);
3781	chptr = tmplLine->indent;	if (rootLine) {
3782	while (*chptr && isspace(*chptr)) chptr++;	free(rootLine->elements[1].item);
3783	if (*chptr == '#') continue;	rootLine->elements[1].item =
3784		strdup(*arg + 5);
3785	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {	} else {
3786	if (!template->multiboot && (needs & NEED_MB)) {	rootLine =
3787	/* it's not a multiboot template and this is the kernel	addLine(entry, cfg->cfi, LT_ROOT,
3788	* line.  Try to be intelligent about inserting the	cfg->secondaryIndent,
3789	* hypervisor at the same time.	*arg + 5);
3790	*/	}
3791	if (config->cfi->mbHyperFirst) {	}
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = preferredLineType(LT_KERNEL, config->cfi);
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(tmplLine->type,
	config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix),
	config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = preferredLineType(LT_INITRD, config->cfi);
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(tmplLine->type,
	config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (isinitrd(tmplLine->type) && tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next &&
	iskernel(masterLine->next->type)) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else if (tmplLine->type == LT_DEVTREE &&
	tmplLine->numElements == 2 && newDevTreePath) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newDevTreePath + strlen(prefix),
	config->cfi);
	needs &= ~NEED_DEVTREE;
	} else if (tmplLine->type == LT_ENTRY_END && needs & NEED_DEVTREE) {
	const char *ndtp = newDevTreePath;
	if (!strncmp(newDevTreePath, prefix, strlen(prefix)))
	ndtp += strlen(prefix);
	newLine = addLine(new, config->cfi, LT_DEVTREE,
	config->secondaryIndent,
	ndtp);
	needs &= ~NEED_DEVTREE;
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
	}
3792
3793	} else {	else {
3794	/* don't have a template, so start the entry with the	/* insert/append */
3795	* appropriate starting line	insertElement(line, *arg, i, cfg->cfi);
3796	*/	usedElements =
3797	switch (config->cfi->entryStart) {	realloc(usedElements,
3798	case LT_KERNEL:	line->numElements *
3799	case LT_KERNEL_EFI:	sizeof(*usedElements));
3800	case LT_KERNEL_16:	memmove(&usedElements[i + 1], &usedElements[i],
3801	if (new->multiboot && config->cfi->mbHyperFirst) {	line->numElements - i - 1);
3802	/* fall through to LT_HYPER */	usedElements[i] = 1;
3803	} else {
3804	newLine = addLine(new, config->cfi,	/* if we updated a root= here even though
3805	preferredLineType(LT_KERNEL, config->cfi),	* there is a LT_ROOT available we need to
3806	config->primaryIndent,	* remove the LT_ROOT entry (this will happen
3807	newKernelPath + strlen(prefix));	* if we switch from a device to a label) */
3808	needs &= ~NEED_KERNEL;	if (useRoot && !strncmp(*arg, "root=", 5)) {
3809	break;	rootLine =
3810		getLineByType(LT_ROOT,
3811		entry->lines);
3812		if (rootLine)
3813		removeLine(entry, rootLine);
3814		}
3815		}
3816	}	}
3817
3818	case LT_HYPER:	free(usedElements);
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3819
3820	case LT_MENUENTRY: {	for (arg = oldArgs; *arg; arg++) {
3821	char *nkt = malloc(strlen(newKernelTitle)+3);	for (i = firstElement; i < line->numElements; i++) {
3822	strcpy(nkt, "'");	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3823	strcat(nkt, newKernelTitle);	!strcmp(line->elements[i].item, "--"))
3824	strcat(nkt, "'");	/* reached the end of hyper args, stop here */
3825	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
3826	config->primaryIndent, nkt);	if (!argNameMatch(line->elements[i].item, *arg)) {
3827	free(nkt);	if (!argHasValue(*arg) ||
3828	needs &= ~NEED_TITLE;	!argValueMatch(line->elements[i].item, *arg)) {
3829	needs |= NEED_END;	removeElement(line, i);
3830	break;	break;
	}
	case LT_TITLE:
	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)
	char * templabel;
	int x = 0, y = 0;
	templabel = strdup(newKernelTitle);
	while( templabel[x]){
	if( templabel[x] == ' ' ){
	y = x;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
3831	}	}
3832	}	}
	x++;
3833	}	}
3834	newLine = addLine(new, config->cfi, LT_TITLE,	/* handle removing LT_ROOT line too */
3835	config->primaryIndent, templabel);	if (useRoot && !strncmp(*arg, "root=", 5)) {
3836	free(templabel);	rootLine = getLineByType(LT_ROOT, entry->lines);
3837	}else{	if (rootLine)
3838	newLine = addLine(new, config->cfi, LT_TITLE,	removeLine(entry, rootLine);
3839	config->primaryIndent, newKernelTitle);	}
3840	}	}
	needs &= ~NEED_TITLE;
	break;
3841
3842	default:	if (line->numElements == 1) {
3843	abort();	/* don't need the line at all (note it has to be a
3844		LT_KERNELARGS for this to happen */
3845		removeLine(entry, line);
3846		}
3847	}	}
	}
	struct singleLine *endLine = NULL;
	endLine = getLineByType(LT_ENTRY_END, new->lines);
	if (endLine) {
	removeLine(new, endLine);
	needs |= NEED_END;
	}
	/* add the remainder of the lines, i.e. those that either
	* weren't present in the template, or in the case of no template,
	* all the lines following the entryStart.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi))
	? LT_MBMODULE
	: preferredLineType(LT_KERNEL, config->cfi),
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi))
	? LT_MBMODULE
	: preferredLineType(LT_INITRD, config->cfi),
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_DEVTREE) {
	newLine = addLine(new, config->cfi, LT_DEVTREE,
	config->secondaryIndent,
	newDevTreePath);
	needs &= ~NEED_DEVTREE;
	}
	/* NEEDS_END must be last on bootloaders that need it... */
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
3848
3849	if (needs) {	free(newArgs);
3850	printf(_("grubby: needs=%d, aborting\n"), needs);	free(oldArgs);
	abort();
	}
	if (updateImage(config, "0", prefix, newKernelArgs, NULL,
	newMBKernelArgs, NULL)) return 1;
3851
3852	return 0;	return 0;
3853	}	}
3854
3855	int main(int argc, const char ** argv) {	int updateImage(struct grubConfig *cfg, const char *image,
3856	poptContext optCon;	const char *prefix, const char *addArgs,
3857	const char * grubConfig = NULL;	const char *removeArgs,
3858	char * outputFile = NULL;	const char *addMBArgs, const char *removeMBArgs)
3859	int arg = 0;	{
3860	int flags = 0;	int rc = 0;
	int badImageOkay = 0;
	int configureGrub2 = 0;
	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
	int configureExtLinux = 0;
	int bootloaderProbe = 0;
	int extraInitrdCount = 0;
	char * updateKernelPath = NULL;
	char * newKernelPath = NULL;
	char * removeKernelPath = NULL;
	char * newKernelArgs = NULL;
	char * newKernelInitrd = NULL;
	char * newKernelTitle = NULL;
	char * newDevTreePath = NULL;
	char * newMBKernel = NULL;
	char * newMBKernelArgs = NULL;
	char * removeMBKernelArgs = NULL;
	char * removeMBKernel = NULL;
	char * bootPrefix = NULL;
	char * defaultKernel = NULL;
	char * removeArgs = NULL;
	char * kernelInfo = NULL;
	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
	char * envPath = NULL;
	const char * chptr = NULL;
	struct configFileInfo * cfi = NULL;
	struct grubConfig * config;
	struct singleEntry * template = NULL;
	int copyDefault = 0, makeDefault = 0;
	int displayDefault = 0;
	int displayDefaultIndex = 0;
	int displayDefaultTitle = 0;
	int defaultIndex = -1;
	struct poptOption options[] = {
	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
	_("add an entry for the specified kernel"), _("kernel-path") },
	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
	_("add an entry for the specified multiboot kernel"), NULL },
	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check which bootloader is installed on boot sector") },
	#endif
	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
	_("path to grub config file to update (\"-\" for stdin)"),
	_("path") },
	{ "copy-default", 0, 0, &copyDefault, 0,
	_("use the default boot entry as a template for the new entry "
	"being added; if the default is not a linux image, or if "
	"the kernel referenced by the default image does not exist, "
	"the first linux entry whose kernel does exist is used as the "
	"template"), NULL },
	{ "debug", 0, 0, &debug, 0,
	_("print debugging information for failures") },
	{ "default-kernel", 0, 0, &displayDefault, 0,
	_("display the path of the default kernel") },
	{ "default-index", 0, 0, &displayDefaultIndex, 0,
	_("display the index of the default kernel") },
	{ "default-title", 0, 0, &displayDefaultTitle, 0,
	_("display the title of the default kernel") },
	{ "devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
	_("device tree file for new stanza"), _("dtb-path") },
	{ "devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
	_("device tree directory for new stanza"), _("dtb-path") },
	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
	_("configure elilo bootloader") },
	{ "efi", 0, POPT_ARG_NONE, &isEfi, 0,
	_("force grub2 stanzas to use efi") },
	{ "env", 0, POPT_ARG_STRING, &envPath, 0,
	_("path for environment data"),
	_("path") },
	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
	_("configure extlinux bootloader (from syslinux)") },
	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxiliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
	_("make the given entry index the default entry"),
	_("entry-index") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	int i = 0;
	for (int j = 1; j < argc; j++)
	i += strlen(argv[j]) + 1;
	saved_command_line = malloc(i);
	if (!saved_command_line) {
	fprintf(stderr, "grubby: %m\n");
	exit(1);
	}
	saved_command_line[0] = '\0';
	for (int j = 1; j < argc; j++) {
	strcat(saved_command_line, argv[j]);
	strncat(saved_command_line, j == argc -1 ? "" : " ", 1);
	}
3861
3862	optCon = poptGetContext("grubby", argc, argv, options, 0);	if (!image)
3863	poptReadDefaultConfig(optCon, 1);	return rc;
3864
3865	while ((arg = poptGetNextOpt(optCon)) >= 0) {	/* update the main args first... */
3866	switch (arg) {	if (addArgs || removeArgs)
3867	case 'v':	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3868	printf("grubby version %s\n", VERSION);	0);
3869	exit(0);	if (rc)
3870	break;	return rc;
3871	case 'i':
3872	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	/* and now any multiboot args */
3873	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	if (addMBArgs || removeMBArgs)
3874	} else {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3875	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	removeMBArgs, 1);
3876	return 1;	return rc;
3877	}	}
3878	break;
3879	}	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3880	}	const char *image, const char *prefix, const char *initrd,
3881		const char *title)
3882		{
3883		struct singleEntry *entry;
3884		struct singleLine *line, *kernelLine, *endLine = NULL;
3885		int index = 0;
3886
3887	if (arg < -1) {	if (!image)
3888	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	return 0;
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
3889
3890	if ((chptr = poptGetArg(optCon))) {	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3891	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3892	return 1;	if (!kernelLine)
3893	}	continue;
3894
3895	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	/* if title is supplied, the entry's title must match it. */
3896	configureYaboot + configureSilo + configureZipl +	if (title) {
3897	configureExtLinux ) > 1) {	char *linetitle;
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureGrub2) {
	cfi = &grub2ConfigType;
	if (envPath)
	cfi->envFile = envPath;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
3898
3899	if (!cfi) {	line =
3900	if (grub2FindConfig(&grub2ConfigType)) {	getLineByType(LT_TITLE | LT_MENUENTRY,
3901	cfi = &grub2ConfigType;	entry->lines);
3902	if (envPath)	if (!line)
3903	cfi->envFile = envPath;	continue;
3904	} else
3905	#ifdef __ia64__	linetitle = extractTitle(cfg, line);
3906	cfi = &eliloConfigType;	if (!linetitle)
3907	#elif __powerpc__	continue;
3908	cfi = &yabootConfigType;	if (strcmp(title, linetitle)) {
3909	#elif __sparc__	free(linetitle);
3910	cfi = &siloConfigType;	continue;
3911	#elif __s390__	}
3912	cfi = &ziplConfigType;	free(linetitle);
3913	#elif __s390x__	}
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
3914
3915	if (!grubConfig) {	if (prefix) {
3916	if (cfi->findConfig)	int prefixLen = strlen(prefix);
3917	grubConfig = cfi->findConfig(cfi);	if (!strncmp(initrd, prefix, prefixLen))
3918	if (!grubConfig)	initrd += prefixLen;
3919	grubConfig = cfi->defaultConfig;	}
3920	}	endLine = getLineByType(LT_ENTRY_END, entry->lines);
3921		if (endLine)
3922		removeLine(entry, endLine);
3923		line =
3924		addLine(entry, cfg->cfi,
3925		preferredLineType(LT_MBMODULE, cfg->cfi),
3926		kernelLine->indent, initrd);
3927		if (!line)
3928		return 1;
3929		if (endLine) {
3930		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3931		if (!line)
3932		return 1;
3933		}
3934
3935	if (bootloaderProbe && (displayDefault || kernelInfo ||	break;
3936	newKernelPath || removeKernelPath || makeDefault ||	}
	defaultKernel || displayDefaultIndex || displayDefaultTitle ||
	(defaultIndex >= 0))) {
	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "
	"specified option"));
	return 1;
	}
3937
3938	if ((displayDefault || kernelInfo) && (newKernelPath ||	return 0;
3939	removeKernelPath)) {	}
	fprintf(stderr, _("grubby: --default-kernel and --info may not "
	"be used when adding or removing kernels\n"));
	return 1;
	}
3940
3941	if (newKernelPath && !newKernelTitle) {	int updateInitrd(struct grubConfig *cfg, const char *image,
3942	fprintf(stderr, _("grubby: kernel title must be specified\n"));	const char *prefix, const char *initrd, const char *title)
3943	return 1;	{
3944	} else if (!newKernelPath && (copyDefault ||	struct singleEntry *entry;
3945	(newKernelInitrd && !updateKernelPath)||	struct singleLine *line, *kernelLine, *endLine = NULL;
3946	makeDefault || extraInitrdCount > 0)) {	int index = 0;
	fprintf(stderr, _("grubby: kernel path expected\n"));
	return 1;
	}
3947
3948	if (newKernelPath && updateKernelPath) {	if (!image)
3949	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	return 0;
	"not be used together"));
	return 1;
	}
3950
3951	if (makeDefault && defaultKernel) {	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3952	fprintf(stderr, _("grubby: --make-default and --default-kernel "	kernelLine =
3953	"may not be used together\n"));	getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3954	return 1;	entry->lines);
3955	} else if (defaultKernel && removeKernelPath &&	if (!kernelLine)
3956	!strcmp(defaultKernel, removeKernelPath)) {	continue;
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
	else if (defaultKernel && (defaultIndex >= 0)) {
	fprintf(stderr, _("grubby: --set-default and --set-default-index "
	"may not be used together\n"));
	return 1;
	}
3957
3958	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	/* if title is supplied, the entry's title must match it. */
3959	fprintf(stderr, _("grubby: output file must be specified if stdin "	if (title) {
3960	"is used\n"));	char *linetitle;
	return 1;
	}
3961
3962	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	line =
3963	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	getLineByType(LT_TITLE | LT_MENUENTRY,
3964	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	entry->lines);
3965	&& (defaultIndex == -1)) {	if (!line)
3966	fprintf(stderr, _("grubby: no action specified\n"));	continue;
3967	return 1;
3968	}	linetitle = extractTitle(cfg, line);
3969		if (!linetitle)
3970		continue;
3971		if (strcmp(title, linetitle)) {
3972		free(linetitle);
3973		continue;
3974		}
3975		free(linetitle);
3976		}
3977
3978	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	line =
3979		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3980		entry->lines);
3981		if (line)
3982		removeLine(entry, line);
3983		if (prefix) {
3984		int prefixLen = strlen(prefix);
3985		if (!strncmp(initrd, prefix, prefixLen))
3986		initrd += prefixLen;
3987		}
3988		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3989		if (endLine)
3990		removeLine(entry, endLine);
3991		enum lineType_e lt;
3992		switch (kernelLine->type) {
3993		case LT_KERNEL:
3994		lt = LT_INITRD;
3995		break;
3996		case LT_KERNEL_EFI:
3997		lt = LT_INITRD_EFI;
3998		break;
3999		case LT_KERNEL_16:
4000		lt = LT_INITRD_16;
4001		break;
4002		default:
4003		lt = preferredLineType(LT_INITRD, cfg->cfi);
4004		}
4005		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
4006		if (!line)
4007		return 1;
4008		if (endLine) {
4009		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
4010		if (!line)
4011		return 1;
4012		}
4013
4014	if (cfi->needsBootPrefix) {	break;
	if (!bootPrefix) {
	bootPrefix = findBootPrefix();
	if (!bootPrefix) return 1;
	} else {
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
4015	}	}
	} else {
	bootPrefix = "";
	}
4016
4017	if (!cfi->mbAllowExtraInitRds &&	return 0;
4018	extraInitrdCount > 0) {	}
	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);
	return 1;
	}
4019
4020	if (bootloaderProbe) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
4021	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;	{
4022	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	int fd;
4023		unsigned char bootSect[512];
4024	const char *grub2config = grub2FindConfig(&grub2ConfigType);	int offset;
4025	if (grub2config) {
4026	gconfig = readConfig(grub2config, &grub2ConfigType);	fd = open(device, O_RDONLY);
4027	if (!gconfig)	if (fd < 0) {
4028	gr2c = 1;	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4029	else	device, strerror(errno));
4030	gr2c = checkForGrub2(gconfig);	return 1;
4031	}	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(eliloConfigType.defaultConfig, F_OK)) {
	econfig = readConfig(eliloConfigType.defaultConfig,
	&eliloConfigType);
	if (!econfig)
	erc = 1;
	else
	erc = checkForElilo(econfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	extrc = 1;
	else
	extrc = checkForExtLinux(lconfig);
	}
	if (!access(yabootConfigType.defaultConfig, F_OK)) {
	yconfig = readConfig(yabootConfigType.defaultConfig,
	&yabootConfigType);
	if (!yconfig)
	yrc = 1;
	else
	yrc = checkForYaboot(yconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 ||
	erc == 1)
	return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (extrc == 2) printf("extlinux\n");
	if (yrc == 2) printf("yaboot\n");
	if (erc == 2) printf("elilo\n");
4032
4033	return 0;	if (read(fd, bootSect, 512) != 512) {
4034	}	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4035		device, strerror(errno));
4036		return 1;
4037		}
4038		close(fd);
4039
4040	if (grubConfig == NULL) {	/* first three bytes should match, a jmp short should be in there */
4041	printf("Could not find bootloader configuration file.\n");	if (memcmp(boot, bootSect, 3))
4042	exit(1);	return 0;
	}
4043
4044	config = readConfig(grubConfig, cfi);	if (boot[1] == JMP_SHORT_OPCODE) {
4045	if (!config) return 1;	offset = boot[2] + 2;
4046		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4047		offset = (boot[3] << 8) + boot[2] + 2;
4048		} else if (boot[0] == JMP_SHORT_OPCODE) {
4049		offset = boot[1] + 2;
4050		/*
4051		* it looks like grub, when copying stage1 into the mbr,
4052		* patches stage1 right after the JMP location, replacing
4053		* other instructions such as JMPs for NOOPs. So, relax the
4054		* check a little bit by skipping those different bytes.
4055		*/
4056		if ((bootSect[offset + 1] == NOOP_OPCODE)
4057		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4058		offset = offset + 3;
4059		}
4060		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4061		offset = (boot[2] << 8) + boot[1] + 2;
4062		} else {
4063		return 0;
4064		}
4065
4066	if (displayDefault) {	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4067	struct singleLine * line;	return 0;
	struct singleEntry * entry;
	char * rootspec;
	if (config->defaultImage == -1) return 0;
	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
	cfi->defaultIsSaved)
	config->defaultImage = 0;
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
4068
4069		return 2;
4070		}
4071
4072		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4073		{
4074		int fd;
4075		char buf[65536];
4076		char *end;
4077		char *chptr;
4078		char *chptr2;
4079		int rc;
4080
4081		/* it's on raid; we need to parse /proc/mdstat and check all of the
4082		*raw* devices listed in there */
4083
4084		if (!strncmp(mdDev, "/dev/", 5))
4085		mdDev += 5;
4086
4087		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4088		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4089		strerror(errno));
4090		return 2;
4091		}
4092
4093		rc = read(fd, buf, sizeof(buf) - 1);
4094		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4095		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4096		strerror(errno));
4097		close(fd);
4098		return 2;
4099		}
4100		close(fd);
4101		buf[rc] = '\0';
4102
4103		chptr = buf;
4104		while (*chptr) {
4105		end = strchr(chptr, '\n');
4106		if (!end)
4107		break;
4108		*end = '\0';
4109
4110		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4111		chptr[strlen(mdDev)] == ' ') {
4112
4113		/* found the device */
4114		while (*chptr && *chptr != ':')
4115		chptr++;
4116		chptr++;
4117		while (*chptr && isspace(*chptr))
4118		chptr++;
4119
4120		/* skip the "active" bit */
4121		while (*chptr && !isspace(*chptr))
4122		chptr++;
4123		while (*chptr && isspace(*chptr))
4124		chptr++;
4125
4126		/* skip the raid level */
4127		while (*chptr && !isspace(*chptr))
4128		chptr++;
4129		while (*chptr && isspace(*chptr))
4130		chptr++;
4131
4132		/* everything else is partition stuff */
4133		while (*chptr) {
4134		chptr2 = chptr;
4135		while (*chptr2 && *chptr2 != '[')
4136		chptr2++;
4137		if (!*chptr2)
4138		break;
4139
4140		/* yank off the numbers at the end */
4141		chptr2--;
4142		while (isdigit(*chptr2) && chptr2 > chptr)
4143		chptr2--;
4144		chptr2++;
4145		*chptr2 = '\0';
4146
4147		/* Better, now we need the /dev/ back. We're
4148		* done with everything before this point, so
4149		* we can just put the /dev/ part there.
4150		* There will always be room. */
4151		memcpy(chptr - 5, "/dev/", 5);
4152		rc = checkDeviceBootloader(chptr - 5, boot);
4153		if (rc != 2) {
4154		return rc;
4155		}
4156
4157		chptr = chptr2 + 1;
4158		/* skip the [11] bit */
4159		while (*chptr && !isspace(*chptr))
4160		chptr++;
4161		/* and move to the next one */
4162		while (*chptr && isspace(*chptr))
4163		chptr++;
4164		}
4165
4166		/*  we're good to go */
4167		return 2;
4168		}
4169
4170		chptr = end + 1;
4171		}
4172
4173		fprintf(stderr,
4174		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4175		mdDev);
4176	return 0;	return 0;
4177		}
4178
4179	} else if (displayDefaultTitle) {	int checkForLilo(struct grubConfig *config)
4180	struct singleLine * line;	{
4181	struct singleEntry * entry;	int fd;
4182		unsigned char boot[512];
4183	if (config->defaultImage == -1)	struct singleLine *line;
4184	return 0;
4185	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	for (line = config->theLines; line; line = line->next)
4186	cfi->defaultIsSaved)	if (line->type == LT_BOOT)
4187	config->defaultImage = 0;	break;
4188	entry = findEntryByIndex(config, config->defaultImage);
4189	if (!entry)	if (!line) {
4190		fprintf(stderr,
4191		_
4192		("grubby: no boot line found in lilo configuration\n"));
4193		return 1;
4194		}
4195
4196		if (line->numElements != 2)
4197		return 1;
4198
4199		fd = open("/boot/boot.b", O_RDONLY);
4200		if (fd < 0) {
4201		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4202		"/boot/boot.b", strerror(errno));
4203		return 1;
4204		}
4205
4206		if (read(fd, boot, 512) != 512) {
4207		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4208		"/boot/boot.b", strerror(errno));
4209		return 1;
4210		}
4211		close(fd);
4212
4213		if (!strncmp("/dev/md", line->elements[1].item, 7))
4214		return checkLiloOnRaid(line->elements[1].item, boot);
4215
4216		return checkDeviceBootloader(line->elements[1].item, boot);
4217		}
4218
4219		int checkForGrub2(struct grubConfig *config)
4220		{
4221		if (!access("/etc/grub.d/", R_OK))
4222		return 2;
4223
4224		return 1;
4225		}
4226
4227		int checkForGrub(struct grubConfig *config)
4228		{
4229		int fd;
4230		unsigned char bootSect[512];
4231		char *boot;
4232		int onSuse = isSuseSystem();
4233
4234		if (onSuse) {
4235		if (parseSuseGrubConf(NULL, &boot))
4236		return 0;
4237		} else {
4238		if (parseSysconfigGrub(NULL, &boot))
4239		return 0;
4240		}
4241
4242		/* assume grub is not installed -- not an error condition */
4243		if (!boot)
4244	return 0;	return 0;
4245
4246	if (!configureGrub2) {	fd = open("/boot/grub/stage1", O_RDONLY);
4247	char *title;	if (fd < 0)
4248	line = getLineByType(LT_TITLE, entry->lines);	/* this doesn't exist if grub hasn't been installed */
	if (!line)
4249	return 0;	return 0;
4250	title = extractTitle(config, line);
4251	if (!title)	if (read(fd, bootSect, 512) != 512) {
4252		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4253		"/boot/grub/stage1", strerror(errno));
4254		close(fd);
4255		return 1;
4256		}
4257		close(fd);
4258
4259		/* The more elaborate checks do not work on SuSE. The checks done
4260		* seem to be reasonble (at least for now), so just return success
4261		*/
4262		if (onSuse)
4263		return 2;
4264
4265		return checkDeviceBootloader(boot, bootSect);
4266		}
4267
4268		int checkForExtLinux(struct grubConfig *config)
4269		{
4270		int fd;
4271		unsigned char bootSect[512];
4272		char *boot;
4273		char executable[] = "/boot/extlinux/extlinux";
4274
4275		printf("entered: checkForExtLinux()\n");
4276
4277		if (parseSysconfigGrub(NULL, &boot))
4278	return 0;	return 0;
	printf("%s\n", title);
	free(title);
	} else {
	char * title;
4279
4280	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	/* assume grub is not installed -- not an error condition */
4281	line = getLineByType(LT_MENUENTRY, entry->lines);	if (!boot)
4282	if (!line)	return 0;
4283
4284		fd = open(executable, O_RDONLY);
4285		if (fd < 0)
4286		/* this doesn't exist if grub hasn't been installed */
4287		return 0;
4288
4289		if (read(fd, bootSect, 512) != 512) {
4290		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4291		executable, strerror(errno));
4292		return 1;
4293		}
4294		close(fd);
4295
4296		return checkDeviceBootloader(boot, bootSect);
4297		}
4298
4299		int checkForYaboot(struct grubConfig *config)
4300		{
4301		/*
4302		* This is a simplistic check that we consider good enough for own puporses
4303		*
4304		* If we were to properly check if yaboot is *installed* we'd need to:
4305		* 1) get the system boot device (LT_BOOT)
4306		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4307		*    the content on the boot device
4308		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4309		* 4) check again if binary and boot device contents match
4310		*/
4311		if (!access("/etc/yaboot.conf", R_OK))
4312		return 2;
4313
4314		return 1;
4315		}
4316
4317		int checkForElilo(struct grubConfig *config)
4318		{
4319		if (!access("/etc/elilo.conf", R_OK))
4320		return 2;
4321
4322		return 1;
4323		}
4324
4325		static size_t getRootSpecifier(const char *str)
4326		{
4327		size_t rs = 0;
4328
4329		if (*str == '(') {
4330		for (; str[rs] != ')' && !isspace(str[rs]); rs++) {
4331		if (!str[rs])
4332		return rs;
4333		}
4334		rs++;
4335		}
4336
4337		return rs;
4338		}
4339
4340		static char *getInitrdVal(struct grubConfig *config,
4341		const char *prefix, struct singleLine *tmplLine,
4342		const char *newKernelInitrd,
4343		const char **extraInitrds, int extraInitrdCount)
4344		{
4345		char *initrdVal, *end;
4346		int i;
4347		size_t totalSize;
4348		size_t prefixLen;
4349		char separatorChar;
4350
4351		prefixLen = strlen(prefix);
4352		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4353
4354		for (i = 0; i < extraInitrdCount; i++) {
4355		totalSize += sizeof(separatorChar);
4356		totalSize += strlen(extraInitrds[i]) - prefixLen;
4357		}
4358
4359		initrdVal = end = malloc(totalSize);
4360
4361		end = stpcpy(end, newKernelInitrd + prefixLen);
4362
4363		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4364		for (i = 0; i < extraInitrdCount; i++) {
4365		const char *extraInitrd;
4366		int j;
4367
4368		extraInitrd = extraInitrds[i] + prefixLen;
4369		/* Don't add entries that are already there */
4370		if (tmplLine != NULL) {
4371		for (j = 2; j < tmplLine->numElements; j++)
4372		if (strcmp
4373		(extraInitrd,
4374		tmplLine->elements[j].item) == 0)
4375		break;
4376
4377		if (j != tmplLine->numElements)
4378		continue;
4379		}
4380
4381		*end++ = separatorChar;
4382		end = stpcpy(end, extraInitrd);
4383		}
4384
4385		return initrdVal;
4386		}
4387
4388		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4389		const char *prefix,
4390		const char *newKernelPath, const char *newKernelTitle,
4391		const char *newKernelArgs, const char *newKernelInitrd,
4392		const char **extraInitrds, int extraInitrdCount,
4393		const char *newMBKernel, const char *newMBKernelArgs,
4394		const char *newDevTreePath, int newIndex)
4395		{
4396		struct singleEntry *new, *entry, *prev = NULL;
4397		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4398		int needs;
4399		char *indexs;
4400		char *chptr;
4401		int rc;
4402
4403		if (!newKernelPath)
4404	return 0;	return 0;
4405	title = grub2ExtractTitle(line);
4406	if (title)	rc = asprintf(&indexs, "%d", newIndex);
4407	printf("%s\n", title);	if (rc < 0)
4408		return 1;
4409
4410		/* if the newKernelTitle is too long silently munge it into something
4411		* we can live with. truncating is first check, then we'll just mess with
4412		* it until it looks better */
4413		if (config->cfi->maxTitleLength &&
4414		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4415		char *buf = alloca(config->cfi->maxTitleLength + 7);
4416		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4417		int i = 1;
4418
4419		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4420		newKernelTitle);
4421		while (findEntryByPath(config, buf, NULL, NULL)) {
4422		sprintf(numBuf, "%d", i++);
4423		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4424		}
4425
4426		newKernelTitle = buf + 6;
4427		}
4428
4429		new = malloc(sizeof(*new));
4430		new->skip = 0;
4431		new->multiboot = 0;
4432		new->lines = NULL;
4433		entry = config->entries;
4434		for (unsigned int i = 0; i < newIndex; i++) {
4435		if (!entry)
4436		break;
4437		prev = entry;
4438		entry = entry->next;
4439		}
4440		new->next = entry;
4441
4442		if (prev)
4443		prev->next = new;
4444		else
4445		config->entries = new;
4446
4447		/* copy/update from the template */
4448		needs = NEED_KERNEL | NEED_TITLE;
4449		if (newKernelInitrd)
4450		needs |= NEED_INITRD;
4451		if (newMBKernel) {
4452		needs |= NEED_MB;
4453		new->multiboot = 1;
4454		}
4455		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4456		needs |= NEED_DEVTREE;
4457
4458		if (template) {
4459		for (masterLine = template->lines;
4460		masterLine && (tmplLine = lineDup(masterLine));
4461		lineFree(tmplLine), masterLine = masterLine->next) {
4462		dbgPrintf("addNewKernel processing %d\n",
4463		tmplLine->type);
4464
4465		/* skip comments */
4466		chptr = tmplLine->indent;
4467		while (*chptr && isspace(*chptr))
4468		chptr++;
4469		if (*chptr == '#')
4470		continue;
4471
4472		if (iskernel(tmplLine->type)
4473		&& tmplLine->numElements >= 2) {
4474		if (!template->multiboot && (needs & NEED_MB)) {
4475		/* it's not a multiboot template and
4476		* this is the kernel line.  Try to
4477		* be intelligent about inserting the
4478		* hypervisor at the same time.
4479		*/
4480		if (config->cfi->mbHyperFirst) {
4481		/* insert the hypervisor first */
4482		newLine =
4483		addLine(new, config->cfi,
4484		LT_HYPER,
4485		tmplLine->indent,
4486		newMBKernel +
4487		strlen(prefix));
4488		/* set up for adding the
4489		* kernel line */
4490		free(tmplLine->indent);
4491		tmplLine->indent =
4492		strdup(config->
4493		secondaryIndent);
4494		needs &= ~NEED_MB;
4495		}
4496		if (needs & NEED_KERNEL) {
4497		/* use addLineTmpl to
4498		* preserve line elements,
4499		* otherwise we could just
4500		* call addLine.
4501		* Unfortunately this means
4502		* making some changes to the
4503		* template such as the
4504		* indent change above and
4505		* the type change below.
4506		*/
4507		struct keywordTypes *mbm_kw =
4508		getKeywordByType
4509		(LT_MBMODULE, config->cfi);
4510		if (mbm_kw) {
4511		tmplLine->type =
4512		LT_MBMODULE;
4513		free(tmplLine->
4514		elements[0].item);
4515		tmplLine->elements[0].
4516		item =
4517		strdup(mbm_kw->key);
4518		}
4519		newLine =
4520		addLineTmpl(new, tmplLine,
4521		newLine,
4522		newKernelPath +
4523		strlen(prefix),
4524		config->cfi);
4525		needs &= ~NEED_KERNEL;
4526		}
4527		if (needs & NEED_MB) { /* !mbHyperFirst */
4528		newLine =
4529		addLine(new, config->cfi,
4530		LT_HYPER,
4531		config->
4532		secondaryIndent,
4533		newMBKernel +
4534		strlen(prefix));
4535		needs &= ~NEED_MB;
4536		}
4537		} else if (needs & NEED_KERNEL) {
4538		newLine =
4539		addLineTmpl(new, tmplLine, newLine,
4540		newKernelPath +
4541		strlen(prefix),
4542		config->cfi);
4543		needs &= ~NEED_KERNEL;
4544		}
4545
4546		} else if (tmplLine->type == LT_HYPER &&
4547		tmplLine->numElements >= 2) {
4548		if (needs & NEED_MB) {
4549		newLine =
4550		addLineTmpl(new, tmplLine, newLine,
4551		newMBKernel +
4552		strlen(prefix),
4553		config->cfi);
4554		needs &= ~NEED_MB;
4555		}
4556
4557		} else if (tmplLine->type == LT_MBMODULE &&
4558		tmplLine->numElements >= 2) {
4559		if (new->multiboot) {
4560		if (needs & NEED_KERNEL) {
4561		newLine =
4562		addLineTmpl(new, tmplLine,
4563		newLine,
4564		newKernelPath +
4565		strlen(prefix),
4566		config->cfi);
4567		needs &= ~NEED_KERNEL;
4568		} else if (config->cfi->mbInitRdIsModule
4569		&& (needs & NEED_INITRD)) {
4570		char *initrdVal;
4571		initrdVal =
4572		getInitrdVal(config, prefix,
4573		tmplLine,
4574		newKernelInitrd,
4575		extraInitrds,
4576		extraInitrdCount);
4577		newLine =
4578		addLineTmpl(new, tmplLine,
4579		newLine,
4580		initrdVal,
4581		config->cfi);
4582		free(initrdVal);
4583		needs &= ~NEED_INITRD;
4584		}
4585		} else if (needs & NEED_KERNEL) {
4586		/* template is multi but new is not,
4587		* insert the kernel in the first
4588		* module slot
4589		*/
4590		tmplLine->type =
4591		preferredLineType(LT_KERNEL,
4592		config->cfi);
4593		free(tmplLine->elements[0].item);
4594		tmplLine->elements[0].item =
4595		strdup(getKeywordByType
4596		(tmplLine->type,
4597		config->cfi)->key);
4598		newLine =
4599		addLineTmpl(new, tmplLine, newLine,
4600		newKernelPath +
4601		strlen(prefix),
4602		config->cfi);
4603		needs &= ~NEED_KERNEL;
4604		} else if (needs & NEED_INITRD) {
4605		char *initrdVal;
4606		/* template is multi but new is not,
4607		* insert the initrd in the second
4608		* module slot
4609		*/
4610		tmplLine->type =
4611		preferredLineType(LT_INITRD,
4612		config->cfi);
4613		free(tmplLine->elements[0].item);
4614		tmplLine->elements[0].item =
4615		strdup(getKeywordByType
4616		(tmplLine->type,
4617		config->cfi)->key);
4618		initrdVal =
4619		getInitrdVal(config, prefix,
4620		tmplLine,
4621		newKernelInitrd,
4622		extraInitrds,
4623		extraInitrdCount);
4624		newLine =
4625		addLineTmpl(new, tmplLine, newLine,
4626		initrdVal, config->cfi);
4627		free(initrdVal);
4628		needs &= ~NEED_INITRD;
4629		}
4630
4631		} else if (isinitrd(tmplLine->type)
4632		&& tmplLine->numElements >= 2) {
4633		if (needs & NEED_INITRD && new->multiboot
4634		&& !template->multiboot
4635		&& config->cfi->mbInitRdIsModule) {
4636		/* make sure we don't insert the
4637		* module initrd before the module
4638		* kernel... if we don't do it here,
4639		* it will be inserted following the
4640		* template.
4641		*/
4642		if (!needs & NEED_KERNEL) {
4643		char *initrdVal;
4644
4645		initrdVal =
4646		getInitrdVal(config, prefix,
4647		tmplLine,
4648		newKernelInitrd,
4649		extraInitrds,
4650		extraInitrdCount);
4651		newLine =
4652		addLine(new, config->cfi,
4653		LT_MBMODULE,
4654		config->
4655		secondaryIndent,
4656		initrdVal);
4657		free(initrdVal);
4658		needs &= ~NEED_INITRD;
4659		}
4660		} else if (needs & NEED_INITRD) {
4661		char *initrdVal;
4662		initrdVal =
4663		getInitrdVal(config, prefix,
4664		tmplLine,
4665		newKernelInitrd,
4666		extraInitrds,
4667		extraInitrdCount);
4668		newLine =
4669		addLineTmpl(new, tmplLine, newLine,
4670		initrdVal, config->cfi);
4671		free(initrdVal);
4672		needs &= ~NEED_INITRD;
4673		}
4674
4675		} else if (tmplLine->type == LT_MENUENTRY &&
4676		(needs & NEED_TITLE)) {
4677		requote(tmplLine, config->cfi);
4678		char *nkt = malloc(strlen(newKernelTitle) + 3);
4679		strcpy(nkt, "'");
4680		strcat(nkt, newKernelTitle);
4681		strcat(nkt, "'");
4682		newLine =
4683		addLineTmpl(new, tmplLine, newLine, nkt,
4684		config->cfi);
4685		free(nkt);
4686		needs &= ~NEED_TITLE;
4687		} else if (tmplLine->type == LT_TITLE &&
4688		(needs & NEED_TITLE)) {
4689		if (tmplLine->numElements >= 2) {
4690		newLine =
4691		addLineTmpl(new, tmplLine, newLine,
4692		newKernelTitle,
4693		config->cfi);
4694		needs &= ~NEED_TITLE;
4695		} else if (tmplLine->numElements == 1 &&
4696		config->cfi->titleBracketed) {
4697		/* addLineTmpl doesn't handle
4698		* titleBracketed */
4699		newLine =
4700		addLine(new, config->cfi, LT_TITLE,
4701		tmplLine->indent,
4702		newKernelTitle);
4703		needs &= ~NEED_TITLE;
4704		}
4705		} else if (tmplLine->type == LT_ECHO) {
4706		requote(tmplLine, config->cfi);
4707		static const char *prefix = "'Loading ";
4708		if (tmplLine->numElements > 1 &&
4709		strstr(tmplLine->elements[1].item, prefix)
4710		&& masterLine->next
4711		&& iskernel(masterLine->next->type)) {
4712		char *newTitle =
4713		malloc(strlen(prefix) +
4714		strlen(newKernelTitle) + 2);
4715
4716		strcpy(newTitle, prefix);
4717		strcat(newTitle, newKernelTitle);
4718		strcat(newTitle, "'");
4719		newLine =
4720		addLine(new, config->cfi, LT_ECHO,
4721		tmplLine->indent, newTitle);
4722		free(newTitle);
4723		} else {
4724		/* pass through other lines from the
4725		* template */
4726		newLine =
4727		addLineTmpl(new, tmplLine, newLine,
4728		NULL, config->cfi);
4729		}
4730		} else if (tmplLine->type == LT_DEVTREE &&
4731		tmplLine->numElements == 2
4732		&& newDevTreePath) {
4733		newLine =
4734		addLineTmpl(new, tmplLine, newLine,
4735		newDevTreePath + strlen(prefix),
4736		config->cfi);
4737		needs &= ~NEED_DEVTREE;
4738		} else if (tmplLine->type == LT_ENTRY_END
4739		&& needs & NEED_DEVTREE) {
4740		const char *ndtp = newDevTreePath;
4741		if (!strncmp
4742		(newDevTreePath, prefix, strlen(prefix)))
4743		ndtp += strlen(prefix);
4744		newLine = addLine(new, config->cfi, LT_DEVTREE,
4745		config->secondaryIndent,
4746		ndtp);
4747		needs &= ~NEED_DEVTREE;
4748		newLine =
4749		addLineTmpl(new, tmplLine, newLine, NULL,
4750		config->cfi);
4751		} else {
4752		/* pass through other lines from the template */
4753		newLine =
4754		addLineTmpl(new, tmplLine, newLine, NULL,
4755		config->cfi);
4756		}
4757		}
4758
4759		} else {
4760		/* don't have a template, so start the entry with the
4761		* appropriate starting line
4762		*/
4763		switch (config->cfi->entryStart) {
4764		case LT_KERNEL:
4765		case LT_KERNEL_EFI:
4766		case LT_KERNEL_16:
4767		if (new->multiboot && config->cfi->mbHyperFirst) {
4768		/* fall through to LT_HYPER */
4769		} else {
4770		newLine = addLine(new, config->cfi,
4771		preferredLineType(LT_KERNEL,
4772		config->
4773		cfi),
4774		config->primaryIndent,
4775		newKernelPath +
4776		strlen(prefix));
4777		needs &= ~NEED_KERNEL;
4778		break;
4779		}
4780
4781		case LT_HYPER:
4782		newLine = addLine(new, config->cfi, LT_HYPER,
4783		config->primaryIndent,
4784		newMBKernel + strlen(prefix));
4785		needs &= ~NEED_MB;
4786		break;
4787
4788		case LT_MENUENTRY:{
4789		char *nkt = malloc(strlen(newKernelTitle) + 3);
4790		strcpy(nkt, "'");
4791		strcat(nkt, newKernelTitle);
4792		strcat(nkt, "'");
4793		newLine =
4794		addLine(new, config->cfi, LT_MENUENTRY,
4795		config->primaryIndent, nkt);
4796		free(nkt);
4797		needs &= ~NEED_TITLE;
4798		needs |= NEED_END;
4799		break;
4800		}
4801		case LT_TITLE:
4802		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4803		char *templabel;
4804		int x = 0, y = 0;
4805
4806		templabel = strdup(newKernelTitle);
4807		while (templabel[x]) {
4808		if (templabel[x] == ' ') {
4809		y = x;
4810		while (templabel[y]) {
4811		templabel[y] =
4812		templabel[y + 1];
4813		y++;
4814		}
4815		}
4816		x++;
4817		}
4818		newLine = addLine(new, config->cfi, LT_TITLE,
4819		config->primaryIndent,
4820		templabel);
4821		free(templabel);
4822		} else {
4823		newLine = addLine(new, config->cfi, LT_TITLE,
4824		config->primaryIndent,
4825		newKernelTitle);
4826		}
4827		needs &= ~NEED_TITLE;
4828		break;
4829
4830		default:
4831		abort();
4832		}
4833	}	}
4834
4835		struct singleLine *endLine = NULL;
4836		endLine = getLineByType(LT_ENTRY_END, new->lines);
4837		if (endLine) {
4838		removeLine(new, endLine);
4839		needs |= NEED_END;
4840		}
4841
4842		/* add the remainder of the lines, i.e. those that either
4843		* weren't present in the template, or in the case of no template,
4844		* all the lines following the entryStart.
4845		*/
4846		if (needs & NEED_TITLE) {
4847		newLine = addLine(new, config->cfi, LT_TITLE,
4848		config->secondaryIndent, newKernelTitle);
4849		needs &= ~NEED_TITLE;
4850		}
4851		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4852		newLine = addLine(new, config->cfi, LT_HYPER,
4853		config->secondaryIndent,
4854		newMBKernel + strlen(prefix));
4855		needs &= ~NEED_MB;
4856		}
4857		if (needs & NEED_KERNEL) {
4858		newLine = addLine(new, config->cfi,
4859		(new->multiboot
4860		&& getKeywordByType(LT_MBMODULE,
4861		config->cfi))
4862		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4863		config->
4864		cfi),
4865		config->secondaryIndent,
4866		newKernelPath + strlen(prefix));
4867		needs &= ~NEED_KERNEL;
4868		}
4869		if (needs & NEED_MB) {
4870		newLine = addLine(new, config->cfi, LT_HYPER,
4871		config->secondaryIndent,
4872		newMBKernel + strlen(prefix));
4873		needs &= ~NEED_MB;
4874		}
4875		if (needs & NEED_INITRD) {
4876		char *initrdVal;
4877		initrdVal =
4878		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4879		extraInitrds, extraInitrdCount);
4880		newLine =
4881		addLine(new, config->cfi,
4882		(new->multiboot
4883		&& getKeywordByType(LT_MBMODULE, config->cfi))
4884		? LT_MBMODULE : preferredLineType(LT_INITRD,
4885		config->cfi),
4886		config->secondaryIndent, initrdVal);
4887		free(initrdVal);
4888		needs &= ~NEED_INITRD;
4889		}
4890		if (needs & NEED_DEVTREE) {
4891		newLine = addLine(new, config->cfi, LT_DEVTREE,
4892		config->secondaryIndent, newDevTreePath);
4893		needs &= ~NEED_DEVTREE;
4894		}
4895
4896		/* NEEDS_END must be last on bootloaders that need it... */
4897		if (needs & NEED_END) {
4898		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4899		config->secondaryIndent, NULL);
4900		needs &= ~NEED_END;
4901		}
4902
4903		if (needs) {
4904		printf(_("grubby: needs=%d, aborting\n"), needs);
4905		abort();
4906		}
4907
4908		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4909		newMBKernelArgs, NULL)) {
4910		config->isModified = 1;
4911		return 1;
4912		}
4913
4914	return 0;	return 0;
4915		}
4916
4917	} else if (displayDefaultIndex) {	int main(int argc, const char **argv)
4918	if (config->defaultImage == -1) return 0;	{
4919	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	poptContext optCon;
4920	cfi->defaultIsSaved)	const char *grubConfig = NULL;
4921	config->defaultImage = 0;	char *outputFile = NULL;
4922	printf("%i\n", config->defaultImage);	int arg = 0;
4923	return 0;	int flags = 0;
4924		int badImageOkay = 0;
4925	} else if (kernelInfo)	int configureGrub2 = 0;
4926	return displayInfo(config, kernelInfo, bootPrefix);	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4927		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4928	if (copyDefault) {	int configureExtLinux = 0;
4929	template = findTemplate(config, bootPrefix, NULL, 0, flags);	int bootloaderProbe = 0;
4930	if (!template) return 1;	int extraInitrdCount = 0;
4931	}	char *updateKernelPath = NULL;
4932		char *newKernelPath = NULL;
4933		char *removeKernelPath = NULL;
4934		char *newKernelArgs = NULL;
4935		char *newKernelInitrd = NULL;
4936		char *newKernelTitle = NULL;
4937		char *newDevTreePath = NULL;
4938		char *newMBKernel = NULL;
4939		char *newMBKernelArgs = NULL;
4940		int newIndex = 0;
4941		char *removeMBKernelArgs = NULL;
4942		char *removeMBKernel = NULL;
4943		char *bootPrefix = NULL;
4944		char *defaultKernel = NULL;
4945		char *removeArgs = NULL;
4946		char *kernelInfo = NULL;
4947		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4948		char *envPath = NULL;
4949		const char *chptr = NULL;
4950		struct configFileInfo *cfi = NULL;
4951		struct grubConfig *config;
4952		struct singleEntry *template = NULL;
4953		int copyDefault = 0, makeDefault = 0;
4954		int displayDefault = 0;
4955		int displayDefaultIndex = 0;
4956		int displayDefaultTitle = 0;
4957		int defaultIndex = -1;
4958		struct poptOption options[] = {
4959		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4960		_("add an entry for the specified kernel"), _("kernel-path")},
4961		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4962		_("add an entry for the specified multiboot kernel"), NULL},
4963		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4964		_("default arguments for the new kernel or new arguments for "
4965		"kernel being updated"), _("args")},
4966		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4967		_("default arguments for the new multiboot kernel or "
4968		"new arguments for multiboot kernel being updated"), NULL},
4969		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4970		_
4971		("don't sanity check images in boot entries (for testing only)"),
4972		NULL},
4973		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4974		_
4975		("filesystem which contains /boot directory (for testing only)"),
4976		_("bootfs")},
4977		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4978		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4979		_("check which bootloader is installed on boot sector")},
4980		#endif
4981		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4982		_("path to grub config file to update (\"-\" for stdin)"),
4983		_("path")},
4984		{"copy-default", 0, 0, &copyDefault, 0,
4985		_("use the default boot entry as a template for the new entry "
4986		"being added; if the default is not a linux image, or if "
4987		"the kernel referenced by the default image does not exist, "
4988		"the first linux entry whose kernel does exist is used as the "
4989		"template"), NULL},
4990		{"debug", 0, 0, &debug, 0,
4991		_("print debugging information for failures")},
4992		{"default-kernel", 0, 0, &displayDefault, 0,
4993		_("display the path of the default kernel")},
4994		{"default-index", 0, 0, &displayDefaultIndex, 0,
4995		_("display the index of the default kernel")},
4996		{"default-title", 0, 0, &displayDefaultTitle, 0,
4997		_("display the title of the default kernel")},
4998		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4999		_("device tree file for new stanza"), _("dtb-path")},
5000		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5001		_("device tree directory for new stanza"), _("dtb-path")},
5002		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
5003		_("configure elilo bootloader")},
5004		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
5005		_("force grub2 stanzas to use efi")},
5006		{"env", 0, POPT_ARG_STRING, &envPath, 0,
5007		_("path for environment data"),
5008		_("path")},
5009		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
5010		_("configure extlinux bootloader (from syslinux)")},
5011		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
5012		_("configure grub bootloader")},
5013		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
5014		_("configure grub2 bootloader")},
5015		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
5016		_("display boot information for specified kernel"),
5017		_("kernel-path")},
5018		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
5019		_("initrd image for the new kernel"), _("initrd-path")},
5020		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
5021		_
5022		("auxiliary initrd image for things other than the new kernel"),
5023		_("initrd-path")},
5024		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
5025		_("configure lilo bootloader")},
5026		{"make-default", 0, 0, &makeDefault, 0,
5027		_("make the newly added entry the default boot entry"), NULL},
5028		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
5029		_("path to output updated config file (\"-\" for stdout)"),
5030		_("path")},
5031		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
5032		_("remove kernel arguments"), NULL},
5033		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
5034		_("remove multiboot kernel arguments"), NULL},
5035		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
5036		_("remove all entries for the specified kernel"),
5037		_("kernel-path")},
5038		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
5039		_("remove all entries for the specified multiboot kernel"),
5040		NULL},
5041		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
5042		_("make the first entry referencing the specified kernel "
5043		"the default"), _("kernel-path")},
5044		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5045		_("make the given entry index the default entry"),
5046		_("entry-index")},
5047		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5048		_("use the given index when creating a new entry"),
5049		_("entry-index")},
5050		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5051		_("configure silo bootloader")},
5052		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5053		_("title to use for the new kernel entry"), _("entry-title")},
5054		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5055		_("updated information for the specified kernel"),
5056		_("kernel-path")},
5057		{"version", 'v', 0, NULL, 'v',
5058		_("print the version of this program and exit"), NULL},
5059		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5060		_("configure yaboot bootloader")},
5061		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5062		_("configure zipl bootloader")},
5063		POPT_AUTOHELP {0, 0, 0, 0, 0}
5064		};
5065
5066		useextlinuxmenu = 0;
5067
5068		int i = 0;
5069		for (int j = 1; j < argc; j++)
5070		i += strlen(argv[j]) + 1;
5071		saved_command_line = malloc(i);
5072		if (!saved_command_line) {
5073		fprintf(stderr, "grubby: %m\n");
5074		exit(1);
5075		}
5076		saved_command_line[0] = '\0';
5077		for (int j = 1; j < argc; j++) {
5078		strcat(saved_command_line, argv[j]);
5079		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5080		}
5081
5082		optCon = poptGetContext("grubby", argc, argv, options, 0);
5083		poptReadDefaultConfig(optCon, 1);
5084
5085		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5086		switch (arg) {
5087		case 'v':
5088		printf("grubby version %s\n", VERSION);
5089		exit(0);
5090		break;
5091		case 'i':
5092		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5093		extraInitrds[extraInitrdCount++] =
5094		strdup(poptGetOptArg(optCon));
5095		} else {
5096		fprintf(stderr,
5097		_
5098		("grubby: extra initrd maximum is %d\n"),
5099		extraInitrdCount);
5100		return 1;
5101		}
5102		break;
5103		}
5104		}
5105
5106		if (arg < -1) {
5107		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5108		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5109		poptStrerror(arg));
5110		return 1;
5111		}
5112
5113		if ((chptr = poptGetArg(optCon))) {
5114		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5115		return 1;
5116		}
5117
5118		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5119		configureYaboot + configureSilo + configureZipl +
5120		configureExtLinux) > 1) {
5121		fprintf(stderr,
5122		_("grubby: cannot specify multiple bootloaders\n"));
5123		return 1;
5124		} else if (bootloaderProbe && grubConfig) {
5125		fprintf(stderr,
5126		_
5127		("grubby: cannot specify config file with --bootloader-probe\n"));
5128		return 1;
5129		} else if (configureGrub2) {
5130		cfi = &grub2ConfigType;
5131		if (envPath)
5132		cfi->envFile = envPath;
5133		} else if (configureLilo) {
5134		cfi = &liloConfigType;
5135		} else if (configureGrub) {
5136		cfi = &grubConfigType;
5137		} else if (configureELilo) {
5138		cfi = &eliloConfigType;
5139		} else if (configureYaboot) {
5140		cfi = &yabootConfigType;
5141		} else if (configureSilo) {
5142		cfi = &siloConfigType;
5143		} else if (configureZipl) {
5144		cfi = &ziplConfigType;
5145		} else if (configureExtLinux) {
5146		cfi = &extlinuxConfigType;
5147		useextlinuxmenu = 1;
5148		}
5149
5150		if (!cfi) {
5151		if (grub2FindConfig(&grub2ConfigType)) {
5152		cfi = &grub2ConfigType;
5153		configureGrub2 = 1;
5154		if (envPath)
5155		cfi->envFile = envPath;
5156		} else {
5157		#ifdef __ia64__
5158		cfi = &eliloConfigType;
5159		configureLilo = 1;
5160		#elif defined(__powerpc__)
5161		cfi = &yabootConfigType;
5162		configureYaboot = 1;
5163		#elif defined(__sparc__)
5164		cfi = &siloConfigType;
5165		configureSilo = 1;
5166		#elif defined(__s390__) || defined(__s390x__)
5167		cfi = &ziplConfigType;
5168		configureZipl = 1;
5169		#else
5170		cfi = &grubConfigType;
5171		configureGrub = 1;
5172		#endif
5173		}
5174		}
5175
5176		if (!grubConfig) {
5177		if (cfi->findConfig)
5178		grubConfig = cfi->findConfig(cfi);
5179		if (!grubConfig)
5180		grubConfig = cfi->defaultConfig;
5181		}
5182
5183		if (bootloaderProbe && (displayDefault || kernelInfo ||
5184		newKernelPath || removeKernelPath || makeDefault
5185		|| defaultKernel || displayDefaultIndex
5186		|| displayDefaultTitle
5187		|| (defaultIndex >= 0))) {
5188		fprintf(stderr,
5189		_("grubby: --bootloader-probe may not be used with "
5190		"specified option"));
5191		return 1;
5192		}
5193
5194	markRemovedImage(config, removeKernelPath, bootPrefix);	if ((displayDefault || kernelInfo) && (newKernelPath ||
5195	markRemovedImage(config, removeMBKernel, bootPrefix);	removeKernelPath)) {
5196	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5197	bootPrefix, flags, defaultIndex);	"be used when adding or removing kernels\n"));
5198	setFallbackImage(config, newKernelPath != NULL);	return 1;
5199	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	}
5200	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;
5201	if (updateKernelPath && newKernelInitrd) {	if (newKernelPath && !newKernelTitle) {
5202	if (newMBKernel) {	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5203	if (addMBInitrd(config, newMBKernel, updateKernelPath,	return 1;
5204		} else if (!newKernelPath && (copyDefault ||
5205		(newKernelInitrd && !updateKernelPath) ||
5206		makeDefault || extraInitrdCount > 0)) {
5207		fprintf(stderr, _("grubby: kernel path expected\n"));
5208		return 1;
5209		}
5210
5211		if (newKernelPath && updateKernelPath) {
5212		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5213		"not be used together"));
5214		return 1;
5215		}
5216
5217		if (makeDefault && defaultKernel) {
5218		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5219		"may not be used together\n"));
5220		return 1;
5221		} else if (defaultKernel && removeKernelPath &&
5222		!strcmp(defaultKernel, removeKernelPath)) {
5223		fprintf(stderr,
5224		_("grubby: cannot make removed kernel the default\n"));
5225		return 1;
5226		} else if (defaultKernel && newKernelPath &&
5227		!strcmp(defaultKernel, newKernelPath)) {
5228		makeDefault = 1;
5229		defaultKernel = NULL;
5230		} else if (defaultKernel && (defaultIndex >= 0)) {
5231		fprintf(stderr,
5232		_("grubby: --set-default and --set-default-index "
5233		"may not be used together\n"));
5234		return 1;
5235		}
5236
5237		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5238		fprintf(stderr,
5239		_("grubby: output file must be specified if stdin "
5240		"is used\n"));
5241		return 1;
5242		}
5243
5244		if (!removeKernelPath && !newKernelPath && !displayDefault
5245		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5246		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5247		&& !displayDefaultTitle && (defaultIndex == -1)) {
5248		fprintf(stderr, _("grubby: no action specified\n"));
5249		return 1;
5250		}
5251
5252		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5253
5254		if (cfi->needsBootPrefix) {
5255		if (!bootPrefix) {
5256		bootPrefix = findBootPrefix();
5257		if (!bootPrefix)
5258		return 1;
5259		} else {
5260		/* this shouldn't end with a / */
5261		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5262		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5263		}
5264		} else {
5265		bootPrefix = "";
5266		}
5267
5268		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5269		fprintf(stderr,
5270		_("grubby: %s doesn't allow multiple initrds\n"),
5271		cfi->defaultConfig);
5272		return 1;
5273		}
5274
5275		if (bootloaderProbe) {
5276		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5277		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5278
5279		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5280		if (grub2config) {
5281		gconfig = readConfig(grub2config, &grub2ConfigType);
5282		if (!gconfig)
5283		gr2c = 1;
5284		else
5285		gr2c = checkForGrub2(gconfig);
5286		}
5287
5288		const char *grubconfig = grubFindConfig(&grubConfigType);
5289		if (!access(grubconfig, F_OK)) {
5290		gconfig = readConfig(grubconfig, &grubConfigType);
5291		if (!gconfig)
5292		grc = 1;
5293		else
5294		grc = checkForGrub(gconfig);
5295		}
5296
5297		if (!access(liloConfigType.defaultConfig, F_OK)) {
5298		lconfig =
5299		readConfig(liloConfigType.defaultConfig,
5300		&liloConfigType);
5301		if (!lconfig)
5302		lrc = 1;
5303		else
5304		lrc = checkForLilo(lconfig);
5305		}
5306
5307		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5308		econfig = readConfig(eliloConfigType.defaultConfig,
5309		&eliloConfigType);
5310		if (!econfig)
5311		erc = 1;
5312		else
5313		erc = checkForElilo(econfig);
5314		}
5315
5316		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5317		lconfig =
5318		readConfig(extlinuxConfigType.defaultConfig,
5319		&extlinuxConfigType);
5320		if (!lconfig)
5321		extrc = 1;
5322		else
5323		extrc = checkForExtLinux(lconfig);
5324		}
5325
5326		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5327		yconfig = readConfig(yabootConfigType.defaultConfig,
5328		&yabootConfigType);
5329		if (!yconfig)
5330		yrc = 1;
5331		else
5332		yrc = checkForYaboot(yconfig);
5333		}
5334
5335		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5336		|| erc == 1)
5337		return 1;
5338
5339		if (lrc == 2)
5340		printf("lilo\n");
5341		if (gr2c == 2)
5342		printf("grub2\n");
5343		if (grc == 2)
5344		printf("grub\n");
5345		if (extrc == 2)
5346		printf("extlinux\n");
5347		if (yrc == 2)
5348		printf("yaboot\n");
5349		if (erc == 2)
5350		printf("elilo\n");
5351
5352		return 0;
5353		}
5354
5355		if (grubConfig == NULL) {
5356		printf("Could not find bootloader configuration file.\n");
5357		exit(1);
5358		}
5359
5360		config = readConfig(grubConfig, cfi);
5361		if (!config)
5362		return 1;
5363
5364		if (displayDefault) {
5365		struct singleLine *line;
5366		struct singleEntry *entry;
5367		size_t rs;
5368
5369		if (config->defaultImage == NO_DEFAULT_ENTRY)
5370		return 0;
5371		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5372		cfi->defaultIsSaved)
5373		config->defaultImage = FIRST_ENTRY_INDEX;
5374		entry = findEntryByIndex(config, config->defaultImage);
5375		if (!entry)
5376		return 0;
5377		if (!suitableImage(entry, bootPrefix, 0, flags))
5378		return 0;
5379
5380		line =
5381		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5382		LT_KERNEL_16, entry->lines);
5383		if (!line)
5384		return 0;
5385
5386		rs = getRootSpecifier(line->elements[1].item);
5387		printf("%s%s\n", bootPrefix, line->elements[1].item + rs);
5388
5389		return 0;
5390
5391		} else if (displayDefaultTitle) {
5392		struct singleLine *line;
5393		struct singleEntry *entry;
5394
5395		if (config->defaultImage == NO_DEFAULT_ENTRY)
5396		return 0;
5397		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5398		cfi->defaultIsSaved)
5399		config->defaultImage = FIRST_ENTRY_INDEX;
5400		entry = findEntryByIndex(config, config->defaultImage);
5401		if (!entry)
5402		return 0;
5403
5404		if (!configureGrub2) {
5405		char *title;
5406		line = getLineByType(LT_TITLE, entry->lines);
5407		if (!line)
5408		return 0;
5409		title = extractTitle(config, line);
5410		if (!title)
5411		return 0;
5412		printf("%s\n", title);
5413		free(title);
5414		} else {
5415		char *title;
5416
5417		dbgPrintf
5418		("This is GRUB2, default title is embeded in menuentry\n");
5419		line = getLineByType(LT_MENUENTRY, entry->lines);
5420		if (!line)
5421		return 0;
5422		title = grub2ExtractTitle(line);
5423		if (title)
5424		printf("%s\n", title);
5425		}
5426		return 0;
5427
5428		} else if (displayDefaultIndex) {
5429		if (config->defaultImage == NO_DEFAULT_ENTRY)
5430		return 0;
5431		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5432		cfi->defaultIsSaved)
5433		config->defaultImage = FIRST_ENTRY_INDEX;
5434		printf("%i\n", config->defaultImage);
5435		return 0;
5436
5437		} else if (kernelInfo)
5438		return displayInfo(config, kernelInfo, bootPrefix);
5439
5440		if (copyDefault) {
5441		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5442		if (!template)
5443		return 1;
5444		}
5445
5446		markRemovedImage(config, removeKernelPath, bootPrefix);
5447		markRemovedImage(config, removeMBKernel, bootPrefix);
5448		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5449		makeDefault, bootPrefix, flags, defaultIndex,
5450		newIndex);
5451		setFallbackImage(config, newKernelPath != NULL);
5452		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5453		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5454		return 1;
5455		if (updateKernelPath && newKernelInitrd) {
5456		if (newMBKernel) {
5457		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5458	bootPrefix, newKernelInitrd,	bootPrefix, newKernelInitrd,
5459	newKernelTitle))	newKernelTitle))
5460	return 1;	return 1;
5461	} else {	} else {
5462	if (updateInitrd(config, updateKernelPath, bootPrefix,	if (updateInitrd(config, updateKernelPath, bootPrefix,
5463	newKernelInitrd, newKernelTitle))	newKernelInitrd, newKernelTitle))
5464	return 1;	return 1;
5465	}	}
5466	}	}
5467	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (addNewKernel(config, template, bootPrefix, newKernelPath,
5468	newKernelTitle, newKernelArgs, newKernelInitrd,	newKernelTitle, newKernelArgs, newKernelInitrd,
5469	(const char **)extraInitrds, extraInitrdCount,	(const char **)extraInitrds, extraInitrdCount,
5470	newMBKernel, newMBKernelArgs, newDevTreePath)) return 1;	newMBKernel, newMBKernelArgs, newDevTreePath,
5471		newIndex))
5472		return 1;
5473	if (numEntries(config) == 0) {
5474	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	if (numEntries(config) == 0) {
5475	"Not writing out new config.\n"));	fprintf(stderr,
5476	return 1;	_("grubby: doing this would leave no kernel entries. "
5477	}	"Not writing out new config.\n"));
5478		return 1;
5479		}
5480
5481	if (!outputFile)	if (!outputFile)
5482	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5483
5484	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5485	}	}

---

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Legend: Removed from v.2995   changed lines   Added in v.3138