Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 2986 by niro, Thu Jun 30 10:30:31 2016 UTC	revision 3137 by niro, Tue Jul 7 11:10:21 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);
	*(tmp + current_len - 1) = '\0';
	return ++tmp;
	}
451
452	/* if no quotes, return second word verbatim */	i = 1;
	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;
	resultMaxSize = sizeOfSingleLine(line);
	result = malloc(resultMaxSize);
	snprintf(result, resultMaxSize, "%s", ++current);
	i++;
	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 (!isquote(current[current_len-1])) {	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 char *getRootSpecifier(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;
973
974	for (int i = 0; i < line->numElements; i++) {	static void lineFree(struct singleLine *line)
975	/* Need to handle this, because we strip the quotes from	{
976	* menuentry when read it. */	if (line->indent)
977	if (line->type == LT_MENUENTRY && i == 1) {	free(line->indent);
	if(!isquote(*line->elements[i].item))
	fprintf(out, "\'%s\'", line->elements[i].item);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
978
979	continue;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982	}	}
983
984	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	if (line->elements)
985	if (fputc('"', out) == EOF) return -1;	free(line->elements);
986		lineInit(line);
987		}
988
989	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	static int lineWrite(FILE * out, struct singleLine *line,
990	if (i < line->numElements - 1)	struct configFileInfo *cfi)
991	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	{
992	}	if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	for (int i = 0; i < line->numElements; i++) {
996	if (fputc('"', out) == EOF) return -1;	/* 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	if (fprintf(out, "\n") == -1) return -1;	continue;
1023		}
1024
1025	return 0;	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		if (fprintf(out, "\n") == -1)
1041		return -1;
1042
1043		return 0;
1044	}	}
1045
1046	/* we've guaranteed that the buffer ends w/ \n\0 */	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
1049	char * end;	{
1050	char * start = *bufPtr;	char *end;
1051	char * chptr;	char *start = *bufPtr;
1052	int elementsAlloced = 0;	char *chptr;
1053	struct lineElement * element;	int elementsAlloced = 0;
1054	int first = 1;	struct lineElement *element;
1055		int first = 1;
1056
1057	lineFree(line);	lineFree(line);
1058
1059	end = strchr(start, '\n');	end = strchr(start, '\n');
1060	*end = '\0';	*end = '\0';
1061	*bufPtr = end + 1;	*bufPtr = end + 1;
1062
1063	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
1064
1065	line->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	while (start < end) {	while (start < end) {
1069	/* we know !isspace(*start) */	/* we know !isspace(*start) */
1070
1071	if (elementsAlloced == line->numElements) {	if (elementsAlloced == line->numElements) {
1072	elementsAlloced += 5;	elementsAlloced += 5;
1073	line->elements = realloc(line->elements,	line->elements = realloc(line->elements,
1074	sizeof(*line->elements) * elementsAlloced);	sizeof(*line->elements) *
1075	}	elementsAlloced);
1076		}
1077
1078	element = line->elements + line->numElements;	element = line->elements + line->numElements;
1079
1080	chptr = start;	chptr = start;
1081	while (*chptr && !isspace(*chptr)) {	while (*chptr && !isspace(*chptr)) {
1082	if (first && *chptr == '=') break;	if (first && *chptr == '=')
1083	chptr++;	break;
1084	}	chptr++;
1085	element->item = strndup(start, chptr - start);	}
1086	start = chptr;	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	/* lilo actually accepts the pathological case of append = " foo " */	do {
1099	if (*start == '=')	for (; *chptr && isspace(*chptr); chptr++) ;
1100	chptr = start + 1;	if (*chptr == '=')
1101	else	chptr = chptr + 1;
1102	chptr = start;	} while (isspace(*chptr));
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1103
1104	element->indent = strndup(start, chptr - start);	element->indent = strndup(start, chptr - start);
1105	start = chptr;	start = chptr;
1106
1107	line->numElements++;	line->numElements++;
1108	first = 0;	first = 0;
1109	}	}
1110
1111	if (!line->numElements)	if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	else {	else {
1114	line->type = getTypeByKeyword(line->elements[0].item, cfi);	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	if (line->type == LT_UNKNOWN) {	if (line->type == LT_UNKNOWN) {
1116	/* zipl does [title] instead of something reasonable like all	/* zipl does [title] instead of something reasonable
1117	* the other boot loaders.  kind of ugly */	* like all the other boot loaders.  kind of ugly */
1118	if (cfi->titleBracketed && isBracketedTitle(line)) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	line->type = LT_TITLE;	line->type = LT_TITLE;
1120	}	}
	/* 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);
1121
1122	fullLine = malloc(len + 1);	/* this is awkward, but we need to be able to handle
1123	strcpy(fullLine, line->indent);	* keywords that begin with a # (specifically for
1124	free(line->indent);	* #boot in grub.conf), but still make comments lines
1125	line->indent = fullLine;	* 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	for (int i = 0; i < line->numElements; i++) {	line->type = LT_WHITESPACE;
1151	strcat(fullLine, line->elements[i].item);	line->numElements = 0;
1152	strcat(fullLine, line->elements[i].indent);	}
1153	free(line->elements[i].item);	} else if (line->type == LT_INITRD) {
1154	free(line->elements[i].indent);	struct keywordTypes *kw;
	}
1155
1156	line->type = LT_WHITESPACE;	kw = getKeywordByType(line->type, cfi);
	line->numElements = 0;
	}
	} else {
	struct keywordTypes *kw;
1157
1158	kw = getKeywordByType(line->type, cfi);	/* space isn't the only separator, we need to split
1159		* elements up more
1160		*/
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	/* space isn't the only separator, we need to split	for (int j = line->numElements; j > i;
1187	* elements up more	j--) {
1188	*/	line->elements[j +
1189	if (!isspace(kw->separatorChar)) {	numNewElements] =
1190	char indent[2] = "";	line->elements[j];
1191	indent[0] = kw->separatorChar;	}
1192	for (int i = 1; i < line->numElements; i++) {	line->numElements += numNewElements;
	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];
	}
	line->numElements += numNewElements;
1193
1194	p = line->elements[i].item;	p = line->elements[i].item;
1195	while (*p != '\0') {	while (*p != '\0') {
1196
1197	while (*p != kw->separatorChar && *p != '\0') p++;	while (*p != kw->separatorChar
1198	if (*p == '\0') {	&& *p != '\0')
1199	break;	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	}	}
	line->elements[i + 1].indent = line->elements[i].indent;
	line->elements[i].indent = strdup(indent);
	*p++ = '\0';
	i++;
	line->elements[i].item = strdup(p);
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;
	}
1290
1291	entry->skip = 0;	rc = readFile(in, &incoming);
1292	entry->multiboot = 0;	close(in);
1293	entry->lines = NULL;	if (rc)
1294	entry->next = NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1298	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->primaryIndent = strdup("");
1299	dbgPrintf("%s", line->indent);	cfg->secondaryIndent = strdup("\t");
1300	for (int i = 0; i < line->numElements; i++)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	cfg->cfi = cfi;
1302	dbgPrintf("\n");	cfg->theLines = NULL;
1303	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->entries = NULL;
1304	if (kwType && line->numElements == 3 &&	cfg->fallbackImage = 0;
1305	!strcmp(line->elements[1].item, kwType->key) &&	cfg->isModified = 0;
1306	!is_special_grub2_variable(line->elements[2].item)) {
1307	dbgPrintf("Line sets default config\n");	/* copy everything we have */
1308	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	while (*head) {
1309	defaultLine = line;	line = malloc(sizeof(*line));
1310	}	lineInit(line);
1311
1312	} else if (iskernel(line->type)) {	if (getNextLine(&head, line, cfi)) {
1313	/* if by some freak chance this is multiboot and the "module"	free(line);
1314	* lines came earlier in the template, make sure to use LT_HYPER	/* XXX memory leak of everything in cfg */
1315	* instead of LT_KERNEL now	return NULL;
1316	*/	}
	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';
1317
1318	for (int i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1320	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1328	free(line->elements[i].indent);	if (!entry) {
1329	}	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1333	line->elements[line->numElements - 1].indent;	entry = entry->next;
1334	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;
	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))
	title = line->elements[i].item + 1;
	else
	title = line->elements[i].item;
1335
1336	len = strlen(title);	entry->skip = 0;
1337	if (isquote(title[len-1])) {	entry->multiboot = 0;
1338	strncat(buf, title,len-1);	entry->lines = NULL;
1339	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1340	}	}
	}
1341
1342	/* get extras */	if (line->type == LT_SET_VARIABLE) {
1343	int count = 0;	dbgPrintf("found 'set' command (%d elements): ",
1344	for (int i = 0; i < line->numElements; i++) {	line->numElements);
1345	if (count >= 2) {	dbgPrintf("%s", line->indent);
1346	strcat(extras, line->elements[i].item);	for (int i = 0; i < line->numElements; i++)
1347	strcat(extras, line->elements[i].indent);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	}	line->elements[i].indent);
1349		dbgPrintf("\n");
1350	if (!strcmp(line->elements[i].item, "menuentry"))	struct keywordTypes *kwType =
1351	continue;	getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353	/* count ' or ", there should be two in menuentry line. */	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (isquote(*line->elements[i].item))	&& !is_special_grub2_variable(
1355	count++;	line->elements[2].item)) {
1356		dbgPrintf("Line sets default config\n");
1357	len = strlen(line->elements[i].item);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358		defaultLine = line;
1359	if (isquote(line->elements[i].item[len -1]))	}
1360	count++;	} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362	/* ok, we get the final ' or ", others are extras. */	* "module" lines came earlier in the template, make
1363	}	* sure to use LT_HYPER instead of LT_KERNEL now
1364	line->elements[1].indent =	*/
1365	line->elements[line->numElements - 2].indent;	if (entry && entry->multiboot)
1366	line->elements[1].item = buf;	line->type = LT_HYPER;
	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) return;	strcat(buf, line->elements[i].indent);
1462		}
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) entry = entry->next;	int count = 0;
1467		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) entry = entry->next;	len = strlen(line->elements[i].item);
	i++;
	}
1488
1489	if (!entry) return;	if (line->elements[i].item[len - 1] ==
1490		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	fprintf(out, "%sdefault%s%s\n", indent, separator,
1516	extractTitle(cfg, line));	last = line->numElements - 1;
1517	}	len = strlen(line->elements[last].item) - 1;
1518	}	if (isquote(line->elements[last].item[len]))
1519	}	line->elements[last].item[len] = '\0';
1520	}	}
1521		}
1522
1523	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	FILE * out;	defaultLine = line;
1526	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;
	}
	}
	}
1527
1528	line = cfg->theLines;	/* If we find a generic config option which should live at the
1529	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	top of the file, move it there. Old versions of grubby were
1530	while (line) {	probably responsible for putting new images in the wrong
1531	if (line->type == LT_SET_VARIABLE && defaultKw &&	place in front of it anyway. */
1532	line->numElements == 3 &&	if (sawEntry && line->type == LT_GENERIC) {
1533	!strcmp(line->elements[1].item, defaultKw->key) &&	struct singleLine **l = &cfg->theLines;
1534	!is_special_grub2_variable(line->elements[2].item)) {	struct singleLine **last_nonws = &cfg->theLines;
1535	writeDefault(out, line->indent, line->elements[0].indent, cfg);	while (*l) {
1536	needs &= ~MAIN_DEFAULT;	if ((*l)->type != LT_WHITESPACE)
1537	} else if (line->type == LT_DEFAULT) {	last_nonws = &((*l)->next);
1538	writeDefault(out, line->indent, line->elements[0].indent, cfg);	l = &((*l)->next);
1539	needs &= ~MAIN_DEFAULT;	}
1540	} else if (line->type == LT_FALLBACK) {	line->next = *last_nonws;
1541	if (cfg->fallbackImage > -1)	*last_nonws = line;
1542	fprintf(out, "%s%s%s%d\n", line->indent,	movedLine = 1;
1543	line->elements[0].item, line->elements[0].indent,	continue; /* without setting 'last' */
1544	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;
	}
	}
1545
1546	line = line->next;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		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	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1558	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1559	needs &= ~MAIN_DEFAULT;	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	i = 0;	/* we could have seen this outside of an entry... if
1566	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1567	if (entry->skip) continue;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	line = entry->lines;	last = line;
	while (line) {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
1580	}	}
	}
1581
1582	if (tmpOutName) {	free(incoming);
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
	}
	}
1583
1584	return 0;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	}	if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		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	static int numEntries(struct grubConfig *cfg) {	if (entry) {
1674	int i = 0;	cfg->defaultImage = i;
1675	struct singleEntry * entry;	} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677	entry = cfg->entries;	}
1678	while (entry) {	}
1679	if (!entry->skip)	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680	i++;	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681	entry = entry->next;	if (defTitle) {
1682	}	int index = 0;
1683	return i;	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);
	printEntry(entry, NULL);
	va_end(argq);
2083
2084	if (!debug) {	printEntry(entry, NULL);
2085	once = 1;	va_end(argq);
	va_end(argp);
	return;
	}
2086
2087	if (okay) {	if (!debug) {
2088	va_end(argp);	once = 1;
2089	return;	va_end(argp);
2090	}	return;
2091		}
2092
2093	if (!once)	if (okay) {
2094	log_message(stderr, "DBG: command line: %s\n", saved_command_line);	va_end(argp);
2095	once = 1;	return;
2096	fprintf(stderr, "DBG: Image entry failed: ");	}
2097	vfprintf(stderr, fmt, argp);
2098	printEntry(entry, stderr);	if (!once)
2099	va_end(argp);	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);
2106	}	}
2107
2108	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1835  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;	char *rootspec;
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		rootspec = getRootSpecifier(line->elements[1].item);
2157		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2158		int hasslash = endswith(bootPrefix, '/') ||
2159		beginswith(line->elements[1].item + rootspec_offset, '/');
2160		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2161		line->elements[1].item + rootspec_offset);
2162		if (access(fullName, R_OK)) {
2163		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2164		return 0;
2165		}
2166		for (i = 2; i < line->numElements; i++)
2167		if (!strncasecmp(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements) {
2170		dev = line->elements[i].item + 5;
2171	} else {	} else {
2172	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2173	* 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);
2174
2175	/* failed to find one */	if (line && line->numElements >= 2) {
2176	if (!line) {	dev = line->elements[1].item;
2177	notSuitablePrintf(entry, 0, "no line found\n");	} else {
2178	return 0;	/* didn't succeed in finding a LT_ROOT, let's try
2179	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2180		* for the args, so check that too.
2181		*/
2182		line =
2183		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2184		entry->lines);
2185
2186		/* failed to find one */
2187		if (!line) {
2188		notSuitablePrintf(entry, 0, "no line found\n");
2189		return 0;
2190		}
2191
2192	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2193	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2194	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2195	dev = line->elements[i].item + 5;	break;
2196	else {	if (i < line->numElements)
2197	notSuitablePrintf(entry, 0, "no root= entry found\n");	dev = line->elements[i].item + 5;
2198	/* it failed too...  can't find root= */	else {
2199	return 0;	notSuitablePrintf(entry, 0,
2200	}	"no root= entry found\n");
2201		/* it failed too...  can't find root= */
2202		return 0;
2203		}
2204		}
2205	}	}
	}
2206
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2207	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2208		if (!getpathbyspec(dev)) {
2209		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2210		dev);
2211		return 0;
2212		} else
2213		dev = getpathbyspec(dev);
2214
2215	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2216	if (!rootdev) {	if (!rootdev) {
2217	notSuitablePrintf(entry, 0, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2218	return 0;	return 0;
2219	}	}
2220
2221	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2222	notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2223	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2224	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2225	return 0;	free(rootdev);
2226	}	return 0;
2227		}
2228
2229	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2230	notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2231	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2232	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2233	return 0;	free(rootdev);
2234	}	return 0;
2235		}
2236
2237	free(rootdev);	free(rootdev);
2238	notSuitablePrintf(entry, 1, "\n");	notSuitablePrintf(entry, 1, "\n");
2239
2240	return 1;	return 1;
2241	}	}
2242
2243	/* 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
2244	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2245	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2246	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2247	int * index) {	int *index)
2248	struct singleEntry * entry = NULL;	{
2249	struct singleLine * line;	struct singleEntry *entry = NULL;
2250	int i;	struct singleLine *line;
2251	char * chptr;	int i;
2252	char * rootspec = NULL;	char *chptr;
2253	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2254		enum lineType_e checkType = LT_KERNEL;
2255
2256		if (isdigit(*kernel)) {
2257		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2258
2259		i = 0;
2260		indexVars[i] = strtol(kernel, &chptr, 10);
2261		while (*chptr == ',') {
2262		i++;
2263		kernel = chptr + 1;
2264		indexVars[i] = strtol(kernel, &chptr, 10);
2265		}
2266
2267	if (isdigit(*kernel)) {	if (*chptr) {
2268	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	/* can't parse it, bail */
2269		return NULL;
2270		}
2271
2272	i = 0;	indexVars[i + 1] = -1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2273
2274	if (*chptr) {	i = 0;
2275	/* can't parse it, bail */	if (index) {
2276	return NULL;	while (i < *index) {
2277	}	i++;
2278		if (indexVars[i] == -1)
2279		return NULL;
2280		}
2281		}
2282
2283	indexVars[i + 1] = -1;	entry = findEntryByIndex(config, indexVars[i]);
2284		if (!entry)
2285		return NULL;
2286
2287		line =
2288		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2289		LT_KERNEL_16, entry->lines);
2290		if (!line)
2291		return NULL;
2292
2293	i = 0;	if (index)
2294	if (index) {	*index = indexVars[i];
2295	while (i < *index) {	return entry;
	i++;
	if (indexVars[i] == -1) return NULL;
	}
2296	}	}
2297
2298	entry = findEntryByIndex(config, indexVars[i]);	if (!strcmp(kernel, "DEFAULT")) {
2299	if (!entry) return NULL;	if (index && *index > config->defaultImage) {
2300		entry = NULL;
2301		} else {
2302		entry = findEntryByIndex(config, config->defaultImage);
2303		if (entry && entry->skip)
2304		entry = NULL;
2305		else if (index)
2306		*index = config->defaultImage;
2307		}
2308		} else if (!strcmp(kernel, "ALL")) {
2309		if (index)
2310		i = *index;
2311		else
2312		i = 0;
2313
2314	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2315	if (!line) return NULL;	if (!entry->skip)
2316		break;
2317		i++;
2318		}
2319
2320	if (index) *index = indexVars[i];	if (entry && index)
2321	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2322	} else {	} else {
2323	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2324	if (entry && entry->skip)	i = *index;
2325	entry = NULL;	else
2326	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++;
	}
2327
2328	if (entry && index)	if (!strncmp(kernel, "TITLE=", 6)) {
2329	*index = i;	prefix = "";
2330	} else {	checkType = LT_TITLE | LT_MENUENTRY;
2331	if (index)	kernel += 6;
2332	i = *index;	}
	else
	i = 0;
2333
2334	if (!strncmp(kernel, "TITLE=", 6)) {	for (entry = findEntryByIndex(config, i); entry;
2335	prefix = "";	entry = entry->next, i++) {
2336	checkType = LT_TITLE|LT_MENUENTRY;	if (entry->skip)
2337	kernel += 6;	continue;
2338	}
2339		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2340	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	checkType, kernel, entry);
2341	if (entry->skip) continue;
2342		/* check all the lines matching checkType */
2343	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	for (line = entry->lines; line; line = line->next) {
2344		enum lineType_e ct = checkType;
2345	/* check all the lines matching checkType */	if (entry->multiboot && checkType == LT_KERNEL)
2346	for (line = entry->lines; line; line = line->next) {	ct = LT_KERNEL | LT_KERNEL_EFI |
2347	enum lineType_e ct = checkType;	LT_MBMODULE | LT_HYPER |
2348	if (entry->multiboot && checkType == LT_KERNEL)	LT_KERNEL_16;
2349	ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER|LT_KERNEL_16;	else if (checkType & LT_KERNEL)
2350	else if (checkType & LT_KERNEL)	ct = checkType | LT_KERNEL_EFI |
2351	ct = checkType | LT_KERNEL_EFI | LT_KERNEL_16;	LT_KERNEL_16;
2352	line = getLineByType(ct, line);	line = getLineByType(ct, line);
2353	if (!line)	if (!line)
2354	break;  /* not found in this entry */	break; /* not found in this entry */
2355
2356		if (line && line->type != LT_MENUENTRY &&
2357		line->numElements >= 2) {
2358		rootspec =
2359		getRootSpecifier(line->elements[1].
2360		item);
2361		if (!strcmp
2362		(line->elements[1].item +
2363		((rootspec !=
2364		NULL) ? strlen(rootspec) : 0),
2365		kernel + strlen(prefix)))
2366		break;
2367		}
2368		if (line->type == LT_MENUENTRY &&
2369		!strcmp(line->elements[1].item, kernel))
2370		break;
2371		}
2372
2373	if (line && line->type != LT_MENUENTRY &&	/* make sure this entry has a kernel identifier; this skips
2374	line->numElements >= 2) {	* non-Linux boot entries (could find netbsd etc, though, which is
2375	rootspec = getRootSpecifier(line->elements[1].item);	* unfortunate)
2376	if (!strcmp(line->elements[1].item +	*/
2377	((rootspec != NULL) ? strlen(rootspec) : 0),	if (line
2378	kernel + strlen(prefix)))	&& getLineByType(LT_KERNEL | LT_HYPER |
2379	break;	LT_KERNEL_EFI | LT_KERNEL_16,
2380		entry->lines))
2381		break; /* found 'im! */
2382	}	}
	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! */
	}
2383
2384	if (index) *index = i;	if (index)
2385	}	*index = i;
2386		}
2387
2388	return entry;	return entry;
2389	}	}
2390
2391	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2392	int * index) {	int *index)
2393	struct singleEntry * entry;	{
2394	struct singleLine * line;	struct singleEntry *entry;
2395	int i;	struct singleLine *line;
2396	char * newtitle;	int i;
2397		char *newtitle;
2398	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2399	if (index && i < *index)	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2400	continue;	if (index && i < *index)
2401	line = getLineByType(LT_TITLE, entry->lines);	continue;
2402	if (!line)	line = getLineByType(LT_TITLE, entry->lines);
2403	line = getLineByType(LT_MENUENTRY, entry->lines);	if (!line)
2404	if (!line)	line = getLineByType(LT_MENUENTRY, entry->lines);
2405	continue;	if (!line)
2406	newtitle = grub2ExtractTitle(line);	continue;
2407	if (!newtitle)	newtitle = grub2ExtractTitle(line);
2408	continue;	if (!newtitle)
2409	if (!strcmp(title, newtitle))	continue;
2410	break;	if (!strcmp(title, newtitle))
2411	}	break;
2412		}
2413
2414	if (!entry)	if (!entry)
2415	return NULL;	return NULL;
2416
2417	if (index)	if (index)
2418	*index = i;	*index = i;
2419	return entry;	return entry;
2420	}	}
2421
2422	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2423	struct singleEntry * entry;	{
2424		struct singleEntry *entry;
2425	entry = cfg->entries;
2426	while (index && entry) {	entry = cfg->entries;
2427	entry = entry->next;	while (index && entry) {
2428	index--;	entry = entry->next;
2429	}	index--;
2430		}
2431
2432	return entry;	return entry;
2433	}	}
2434
2435	/* 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 2117  struct singleEntry * findEntryByIndex(st	Line 2437  struct singleEntry * findEntryByIndex(st
2437	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2438	* 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,
2439	* bail. */	* bail. */
2440	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2441	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2442	struct singleEntry * entry, * entry2;	{
2443	int index;	struct singleEntry *entry, *entry2;
2444		int index;
2445	if (cfg->cfi->defaultIsSaved) {
2446	if (cfg->cfi->getEnv) {	if (cfg->cfi->defaultIsSaved) {
2447	char *defTitle = cfg->cfi->getEnv(cfg->cfi, "saved_entry");	if (cfg->cfi->getEnv) {
2448	if (defTitle) {	char *defTitle =
2449	int index = 0;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2450	if (isnumber(defTitle)) {	if (defTitle) {
2451	index = atoi(defTitle);	int index = 0;
2452	entry = findEntryByIndex(cfg, index);	if (isnumber(defTitle)) {
2453	} else {	index = atoi(defTitle);
2454	entry = findEntryByTitle(cfg, defTitle, &index);	entry = findEntryByIndex(cfg, index);
2455		} else {
2456		entry =
2457		findEntryByTitle(cfg, defTitle,
2458		&index);
2459		}
2460		if (entry
2461		&& suitableImage(entry, prefix, skipRemoved,
2462		flags)) {
2463		cfg->defaultImage = index;
2464		if (indexPtr)
2465		*indexPtr = index;
2466		return entry;
2467		}
2468		}
2469	}	}
2470		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2471		entry = findEntryByIndex(cfg, cfg->defaultImage);
2472	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2473	cfg->defaultImage = index;	if (indexPtr)
2474	if (indexPtr)	*indexPtr = cfg->defaultImage;
2475	*indexPtr = index;	return entry;
2476	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;
2477	}	}
	}
2478
2479	index = 0;	index = 0;
2480	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2481	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2482	int j;	int j, unmodifiedIndex;
2483	for (j = 0; j < index; j++) {
2484	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2485	if (entry2->skip) index--;
2486	}	for (j = 0; j < unmodifiedIndex; j++) {
2487	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2488		if (entry2->skip)
2489		index--;
2490		}
2491		if (indexPtr)
2492		*indexPtr = index;
2493
2494	return entry;	return entry;
2495	}	}
2496
2497	index++;	index++;
2498	}	}
2499
2500	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2501		_("grubby fatal error: unable to find a suitable template\n"));
2502
2503	return NULL;	return NULL;
2504	}	}
2505
2506	char * findBootPrefix(void) {	char *findBootPrefix(void)
2507	struct stat sb, sb2;	{
2508		struct stat sb, sb2;
2509
2510	stat("/", &sb);	stat("/", &sb);
2511	#ifdef __ia64__	#ifdef __ia64__
2512	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2513	#else	#else
2514	stat("/boot", &sb2);	stat("/boot", &sb2);
2515	#endif	#endif
2516
2517	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2518	return strdup("");	return strdup("");
2519
2520	#ifdef __ia64__	#ifdef __ia64__
2521	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2522	#else	#else
2523	return strdup("/boot");	return strdup("/boot");
2524	#endif	#endif
2525	}	}
2526
2527	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2528	const char * prefix) {	const char *prefix)
2529	struct singleEntry * entry;	{
2530		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;
	}
2531
2532	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2533	entry->skip = 1;	return;
	}
2534
2535	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2536	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2537	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2538	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2539	int i, j;	entry->skip = 1;
2540		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;
2541	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	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;
2542
2543	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2544	/* we can preserve the default */	entry->skip = 1;
	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;
	}
2545	}	}
2546
2547	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2548	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2549	int j;	const char *prefix, int flags,
2550		int newDefaultBootEntryIndex, int newBootEntryIndex)
2551	if (config->fallbackImage == -1) return;	{
2552		struct singleEntry *bootEntry, *newDefault;
2553	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--;
	}
	}
2554
2555	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* initialize */
2556	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;
	}
2557
2558	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* handle the two cases where the user explictly picks the default
2559	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);
	}
2560
2561	i++;	/* Case 1: user chose to make the latest boot entry the default */
2562		if (newBootEntryIsDefault) {
2563		config->defaultImage = newBootEntryIndex;
2564		return;
2565	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2566
2567	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2568	i = 1;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2569	while (i < line->numElements) {	indexToVerify = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2570
2571	printf("%s%s", s, line->elements[i].indent);	/* user chose to make latest boot entry the default */
2572		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2573		config->defaultImage = newBootEntryIndex;
2574		return;
2575	}	}
2576
2577	i++;	/* the user picks the default index based on the
2578	}	* order of the bootloader configuration after
2579		* modification; ensure we are checking for the
2580		* existence of the correct entry */
2581		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2582		if (!config->isModified)
2583		indexToVerify--;
2584		}
2585
2586	s = line->elements[i - 1].indent;	/* verify the user selected index will exist */
2587	printf("\"\n");	if (findEntryByIndex(config, indexToVerify)) {
2588	}	config->defaultImage = newDefaultBootEntryIndex;
2589	}	} else {
2590		config->defaultImage = NO_DEFAULT_ENTRY;
2591		}
2592
2593	if (!root) {	return;
2594	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2595
2596	if (root) {	/* handle cases where the index value may shift */
	char * s = alloca(strlen(root) + 1);
	strcpy(s, root);
	if (s[strlen(s) - 1] == '"')
	s[strlen(s) - 1] = '\0';
	/* make sure the root doesn't have a trailing " */
	printf("root=%s\n", s);
	}
2597
2598	line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, entry->lines);	/* check validity of existing default or first-entry-found
2599		selection */
2600		if (defaultKernelPath) {
2601		/* we must initialize this */
2602		firstKernelEntryIndex = 0;
2603		/* user requested first-entry-found */
2604		if (!findEntryByPath(config, defaultKernelPath,
2605		prefix, &firstKernelEntryIndex)) {
2606		/* don't change default if can't find match */
2607		config->defaultImage = NO_DEFAULT_ENTRY;
2608		return;
2609		}
2610
2611	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2612
2613	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2614	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2615
2616	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2617	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2618	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2619	} else {	config->defaultImage++;
2620	char * title;	}
2621	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2622	if (line) {	/* check to see if the default is stored in the environment */
2623	title = grub2ExtractTitle(line);	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2624	if (title)	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2625	printf("title=%s\n", title);	{
2626		if (config->cfi->defaultIsSaved) {
2627		if (config->cfi->getEnv) {
2628		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2629
2630		if (defaultTitle) {
2631		if (isnumber(defaultTitle)) {
2632		currentLookupIndex = atoi(defaultTitle);
2633		} else {
2634		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2635		}
2636		/* set the default Image to an actual index */
2637		config->defaultImage = currentLookupIndex;
2638		}
2639		}
2640		}
2641		}
2642		} else {
2643		/* use pre-existing default entry from the file*/
2644		currentLookupIndex = config->defaultImage;
2645		}
2646
2647		if (isAddingBootEntry
2648		&& (newBootEntryIndex <= config->defaultImage)) {
2649		config->defaultImage++;
2650
2651		if (config->isModified) {
2652		currentLookupIndex++;
2653		}
2654		}
2655	}	}
	}
2656
2657	for (j = 0, line = entry->lines; line; line = line->next) {	/* sanity check - is this entry index valid? */
2658	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {	bootEntry = findEntryByIndex(config, currentLookupIndex);
2659	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2660	printf("mbmodule%d=", j);	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661	else	/* entry is to be skipped or is invalid */
2662	printf("mbmodule%d=%s", j, prefix);	if (isAddingBootEntry) {
2663		config->defaultImage = newBootEntryIndex;
2664	for (i = 1; i < line->numElements; i++)	return;
2665	printf("%s%s", line->elements[i].item, line->elements[i].indent);	}
2666	printf("\n");	newDefault =
2667	j++;	findTemplate(config, prefix, &config->defaultImage, 1,
2668		flags);
2669		if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671		}
2672
2673		return;
2674	}	}
	}
	}
2675
2676	int isSuseSystem(void) {	currentLookupIndex--;
	const char * path;
	const static char default_path[] = "/etc/SuSE-release";
2677
2678	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	/* decrement index by the total number of entries deleted */
	path = default_path;
2679
2680	if (!access(path, R_OK))	for (indexToVerify = currentLookupIndex;
2681	return 1;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	return 0;
	}
2682
2683	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;
	}
2684
2685	while ((res = getline(&line, &len, grubConf)) != -1) {	if (bootEntry && bootEntry->skip) {
2686	if (!strncmp(line, "setup", 5)) {	config->defaultImage--;
2687	fclose(grubConf);	}
	free(line);
	return 1;
2688	}	}
2689	}	}
2690
2691	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	void setFallbackImage(struct grubConfig *config, int hasNew)
2692	path);	{
2693		struct singleEntry *entry, *entry2;
2694		int j;
2695
2696	fclose(grubConf);	if (config->fallbackImage == -1)
2697	free(line);	return;
	return 0;
	}
2698
2699	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	entry = findEntryByIndex(config, config->fallbackImage);
2700	FILE * grubConf;	if (!entry || entry->skip) {
2701	char * line = NULL;	config->fallbackImage = -1;
2702	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';
2703	}	}
2704
2705	if (!strncmp(line, "setup", 5)) {	if (hasNew)
2706	if (strstr(line, "--force-lba")) {	config->fallbackImage++;
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2707
2708	free(line);	/* count the number of entries erased before this one */
2709	fclose(grubConf);	for (j = 0; j < config->fallbackImage; j++) {
2710	return 0;	entry2 = findEntryByIndex(config, j);
2711		if (entry2->skip)
2712		config->fallbackImage--;
2713		}
2714	}	}
2715
2716	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	FILE * grubConf;	{
2718	char * line = NULL;	struct singleLine *line;
2719	size_t res = 0, len = 0;	char *root = NULL;
2720	char * lastParamPtr = NULL;	int i;
2721	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';
	}
2722
2723	lastParamPtr = bounds = line + res;	printf("index=%d\n", index);
2724
2725	/* Last parameter in grub may be an optional IMAGE_DEVICE */	line =
2726	while (!isspace(*lastParamPtr))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727	lastParamPtr--;	entry->lines);
2728	lastParamPtr++;	if (!line) {
2729		printf("non linux entry\n");
2730		return;
2731		}
2732
2733	secLastParamPtr = lastParamPtr - 2;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);	printf("kernel=%s\n", line->elements[1].item);
2735		else
2736		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2737
2738	if (lastParamPtr + 3 > bounds) {	if (line->numElements >= 3) {
2739	dbgPrintf("lastParamPtr going over boundary");	printf("args=\"");
2740	fclose(grubConf);	i = 2;
2741	free(line);	while (i < line->numElements) {
2742	return 1;	if (!strncmp(line->elements[i].item, "root=", 5)) {
2743	}	root = line->elements[i].item + 5;
2744	if (!strncmp(lastParamPtr, "(hd", 3))	} else {
2745	lastParamPtr += 3;	printf("%s%s", line->elements[i].item,
2746	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);	line->elements[i].indent);
2747		}
2748
2749	/*	i++;
2750	* Second last parameter will decide wether last parameter is	}
2751	* 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;
2752	} else {	} else {
2753	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2754		if (line) {
2755		char *s;
2756
2757		printf("args=\"");
2758		i = 1;
2759		while (i < line->numElements) {
2760		if (!strncmp
2761		(line->elements[i].item, "root=", 5)) {
2762		root = line->elements[i].item + 5;
2763		} else {
2764		s = line->elements[i].item;
2765
2766		printf("%s%s", s,
2767		line->elements[i].indent);
2768		}
2769
2770		i++;
2771		}
2772
2773		s = line->elements[i - 1].indent;
2774		printf("\"\n");
2775		}
2776	}	}
2777
2778	*devicePtr = malloc(6);	if (!root) {
2779	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2780	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2781	fclose(grubConf);	root = line->elements[1].item;
2782	free(line);	}
	return 0;
	}
2783
2784	free(line);	if (root) {
2785	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;
2786
2787	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2788	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2789	continue;	s[strlen(s) - 1] = '\0';
2790		/* make sure the root doesn't have a trailing " */
2791	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';
2792	}	}
2793
2794	devicePtr = line;	line =
2795	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2796		entry->lines);
2797
2798	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2799	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2800	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2801		else
2802		printf("initrd=%s", prefix);
2803
2804	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2805	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2806	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2807	devicePtr++;	printf("\n");
2808		}
2809
2810	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2811	break;	if (line) {
2812		char *entryTitle;
2813		/* if we can extractTitle, then it's a zipl config and
2814		* if not then we go ahead with what's existed prior */
2815		entryTitle = extractTitle(config, line);
2816		if (!entryTitle) {
2817		entryTitle=line->elements[1].item;
2818		}
2819		printf("title=%s\n", entryTitle);
2820		} else {
2821		char *title;
2822		line = getLineByType(LT_MENUENTRY, entry->lines);
2823		if (line) {
2824		title = grub2ExtractTitle(line);
2825		if (title)
2826		printf("title=%s\n", title);
2827		}
2828	}	}
	}
2829
2830	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2831	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2832	return 0;	if (!strncmp
2833		(prefix, line->elements[1].item, strlen(prefix)))
2834		printf("mbmodule%d=", j);
2835		else
2836		printf("mbmodule%d=%s", j, prefix);
2837
2838		for (i = 1; i < line->numElements; i++)
2839		printf("%s%s", line->elements[i].item,
2840		line->elements[i].indent);
2841		printf("\n");
2842		j++;
2843		}
2844		}
2845	}	}
2846
2847	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2848	char * grubDevice;	{
2849		const char *path;
2850		const static char default_path[] = "/etc/SuSE-release";
2851
2852	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2853	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);
2854
2855	free(grubDevice);	if (!access(path, R_OK))
2856	return 0;	return 1;
2857		return 0;
2858	}	}
2859
2860	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2861	/*	{
2862	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2863	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2864	* grub on that system.	size_t len = 0, res = 0;
2865	*/
2866	const char * path;	grubConf = fopen(path, "r");
2867	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2868		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2869	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2870	path = default_path;	return 0;
2871		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2872
2873	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2874	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2875	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2876	}	free(line);
2877		return 1;
2878		}
2879		}
2880
2881	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2882		path);
2883
2884		fclose(grubConf);
2885		free(line);
2886		return 0;
2887	}	}
2888
2889	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2890	FILE * in;	{
2891	char buf[1024];	FILE *grubConf;
2892	char * chptr;	char *line = NULL;
2893	char * start;	size_t res = 0, len = 0;
2894	char * param;
2895		if (!path)
2896	in = fopen("/etc/conf.d/grub", "r");	return 1;
2897	if (!in) return 1;	if (!lbaPtr)
2898		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);
	}
2899
2900	fclose(in);	grubConf = fopen(path, "r");
2901		if (!grubConf)
2902		return 1;
2903
2904	return 0;	while ((res = getline(&line, &len, grubConf)) != -1) {
2905	}	if (line[res - 1] == '\n')
2906		line[res - 1] = '\0';
2907		else if (len > res)
2908		line[res] = '\0';
2909		else {
2910		line = realloc(line, res + 1);
2911		line[res] = '\0';
2912		}
2913
2914	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2915	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2916	int lba;	*lbaPtr = 1;
2917		} else {
2918	if (isSuseSystem()) {	*lbaPtr = 0;
2919	if (parseSuseGrubConf(&lba, &boot)) {	}
2920	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2921	return;	break;
2922	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2923	}	}
	}
2924
2925	if (lba) printf("lba\n");	free(line);
2926	if (boot) {	fclose(grubConf);
2927	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2928	}	}
2929
2930	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2931	const char * prefix) {	{
2932	int i = 0;	FILE *grubConf;
2933	struct singleEntry * entry;	char *line = NULL;
2934	struct singleLine * line;	size_t res = 0, len = 0;
2935		char *lastParamPtr = NULL;
2936	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2937	if (!entry) {	char installDeviceNumber = '\0';
2938	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
	/* this is a horrible hack to support /etc/conf.d/grub; there must
	be a better way */
	if (config->cfi == &grubConfigType) {
	dumpSysconfigGrub();
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2939
2940	line = getLineByType(LT_LBA, config->theLines);	if (!path)
2941	if (line) printf("lba\n");	return 1;
2942	}	if (!devicePtr)
2943		return 1;
2944
2945	displayEntry(entry, prefix, i);	grubConf = fopen(path, "r");
2946		if (!grubConf)
2947		return 1;
2948
2949	i++;	while ((res = getline(&line, &len, grubConf)) != -1) {
2950	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	if (strncmp(line, "setup", 5))
2951	displayEntry(entry, prefix, i);	continue;
2952	i++;
2953	}	if (line[res - 1] == '\n')
2954		line[res - 1] = '\0';
2955		else if (len > res)
2956		line[res] = '\0';
2957		else {
2958		line = realloc(line, res + 1);
2959		line[res] = '\0';
2960		}
2961
2962	return 0;	lastParamPtr = bounds = line + res;
	}
2963
2964	struct singleLine * addLineTmpl(struct singleEntry * entry,	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2965	struct singleLine * tmplLine,	while (!isspace(*lastParamPtr))
2966	struct singleLine * prevLine,	lastParamPtr--;
2967	const char * val,	lastParamPtr++;
2968	struct configFileInfo * cfi)
2969	{	secLastParamPtr = lastParamPtr - 2;
2970	struct singleLine * newLine = lineDup(tmplLine);	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2971
2972	if (isEfi && cfi == &grub2ConfigType) {	if (lastParamPtr + 3 > bounds) {
2973	enum lineType_e old = newLine->type;	dbgPrintf("lastParamPtr going over boundary");
2974	newLine->type = preferredLineType(newLine->type, cfi);	fclose(grubConf);
2975	if (old != newLine->type)	free(line);
2976	newLine->elements[0].item = getKeyByType(newLine->type, cfi);	return 1;
2977	}	}
2978		if (!strncmp(lastParamPtr, "(hd", 3))
2979		lastParamPtr += 3;
2980		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2981
2982		/*
2983		* Second last parameter will decide wether last parameter is
2984		* an IMAGE_DEVICE or INSTALL_DEVICE
2985		*/
2986		while (!isspace(*secLastParamPtr))
2987		secLastParamPtr--;
2988		secLastParamPtr++;
2989
2990		if (secLastParamPtr + 3 > bounds) {
2991		dbgPrintf("secLastParamPtr going over boundary");
2992		fclose(grubConf);
2993		free(line);
2994		return 1;
2995		}
2996		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2997		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2998		secLastParamPtr += 3;
2999		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
3000		installDeviceNumber = *secLastParamPtr;
3001		} else {
3002		installDeviceNumber = *lastParamPtr;
3003		}
3004
3005	if (val) {	*devicePtr = malloc(6);
3006	/* override the inherited value with our own.	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3007	* This is a little weak because it only applies to elements[1]	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3008	*/	fclose(grubConf);
3009	if (newLine->numElements > 1)	free(line);
3010	removeElement(newLine, 1);	return 0;
	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);
	}
3011	}	}
	}
3012
3013	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	free(line);
3014	newLine->elements[0].item : "");	fclose(grubConf);
3015		return 1;
	if (!entry->lines) {
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
3016	}	}
3017
3018	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3019	struct singleLine *  addLine(struct singleEntry * entry,	{
3020	struct configFileInfo * cfi,	FILE *deviceMap;
3021	enum lineType_e type, char * defaultIndent,	char *line = NULL;
3022	const char * val) {	size_t res = 0, len = 0;
3023	struct singleLine * line, * prev;	char *devicePtr;
3024	struct keywordTypes * kw;	char *bounds = NULL;
3025	struct singleLine tmpl;	const char *path;
3026		const static char default_path[] = "/boot/grub/device.map";
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	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 = "";
	}
	}
3027
3028	/* The last non-empty line gives us the indention to us and the line	if (!device)
3029	to insert after. Note that comments are considered empty lines, which	return 1;
3030	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
3031	first line, we use defaultIndent (the first line is normally indented	return 1;
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
3032
3033	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3034	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	path = default_path;
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
3035
3036	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
3037	}	deviceMap = fopen(path, "r");
3038		if (!deviceMap)
3039		return 1;
3040
3041		while ((res = getline(&line, &len, deviceMap)) != -1) {
3042		if (!strncmp(line, "#", 1))
3043		continue;
3044
3045		if (line[res - 1] == '\n')
3046		line[res - 1] = '\0';
3047		else if (len > res)
3048		line[res] = '\0';
3049		else {
3050		line = realloc(line, res + 1);
3051		line[res] = '\0';
3052		}
3053
3054	void removeLine(struct singleEntry * entry, struct singleLine * line) {	devicePtr = line;
3055	struct singleLine * prev;	bounds = line + res;
	int i;
3056
3057	for (i = 0; i < line->numElements; i++) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058	free(line->elements[i].item);	devicePtr++;
3059	free(line->elements[i].indent);	dbgPrintf("device: %s\n", devicePtr);
3060	}
3061	free(line->elements);	if (!strncmp(devicePtr, device, strlen(device))) {
3062	free(line->indent);	devicePtr += strlen(device);
3063		while (isspace(*devicePtr)
3064		&& ((devicePtr + 1) <= bounds))
3065		devicePtr++;
3066
3067	if (line == entry->lines) {	*bootPtr = strdup(devicePtr);
3068	entry->lines = line->next;	break;
3069	} else {	}
3070	prev = entry->lines;	}
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3071
3072	free(line);	free(line);
3073		fclose(deviceMap);
3074		return 0;
3075	}	}
3076
3077	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3078	{	{
3079	struct singleLine newLine = {	char *grubDevice;
	.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;
	}
	}
	}
	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;
	}
3080
3081	line->elements = realloc(line->elements, (line->numElements + 1) *	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082	sizeof(*line->elements));	dbgPrintf("error looking for grub installation device\n");
3083	memmove(&line->elements[insertHere+1],	else
3084	&line->elements[insertHere],	dbgPrintf("grubby installation device: %s\n", grubDevice);
	(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] = ' ';
	}
	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {
	/* move the end-of-line forward */
	line->elements[insertHere].indent =
	line->elements[insertHere-1].indent;
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
3085
3086	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3087		dbgPrintf("error looking for grub boot device\n");
3088		else
3089		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3090
3091	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3092	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3093	}	}
3094
3095	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3096	int i;	{
3097		/*
3098	/* sanity check */	* This SuSE grub configuration file at this location is not your
3099	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3100		* used to setup grub on that system.
3101	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3102	removeHere, line->elements[removeHere].item);	const char *path;
3103		const static char default_path[] = "/etc/grub.conf";
3104
3105	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3106		path = default_path;
3107
3108	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3109	/* previous argument gets this argument's post-indentation */	return 1;
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
3110
3111	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3112	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3113	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3114		return 1;
	line->numElements--;
	}
	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;
3115	}	}
	}
3116
3117	if (!removeArgs) {	if (bootPtr) {
3118	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3119	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3120	}	}
	}
3121
3122		return 0;
3123		}
3124
3125	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	{
3127		FILE *in;
3128	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	char buf[1024];
3129	&& !multibootArgs);	char *chptr;
3130		char *start;
3131	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	char *param;
3132
3133	if (multibootArgs && !entry->multiboot)	in = fopen("/etc/sysconfig/grub", "r");
3134	continue;	if (!in)
3135		return 1;
3136
3137	/* Determine where to put the args.  If this config supports	if (lbaPtr)
3138	* LT_KERNELARGS, use that.  Otherwise use	*lbaPtr = 0;
3139	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	if (bootPtr)
3140	*/	*bootPtr = NULL;
3141	if (useKernelArgs) {
3142	line = getLineByType(LT_KERNELARGS, entry->lines);	while (fgets(buf, sizeof(buf), in)) {
3143	if (!line) {	start = buf;
3144	/* no LT_KERNELARGS, need to add it */	while (isspace(*start))
3145	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	start++;
3146	cfg->secondaryIndent, NULL);	if (*start == '#')
3147	}	continue;
3148	firstElement = 1;
3149		chptr = strchr(start, '=');
3150	} else if (multibootArgs) {	if (!chptr)
3151	line = getLineByType(LT_HYPER, entry->lines);	continue;
3152	if (!line) {	chptr--;
3153	/* a multiboot entry without LT_HYPER? */	while (*chptr && isspace(*chptr))
3154	continue;	chptr--;
3155	}	chptr++;
3156	firstElement = 2;	*chptr = '\0';
3157
3158		param = chptr + 1;
3159		while (*param && isspace(*param))
3160		param++;
3161		if (*param == '=') {
3162		param++;
3163		while (*param && isspace(*param))
3164		param++;
3165		}
3166
3167	} else {	chptr = param;
3168	line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);	while (*chptr && !isspace(*chptr))
3169	if (!line) {	chptr++;
3170	/* no LT_KERNEL or LT_MBMODULE in this entry? */	*chptr = '\0';
3171	continue;
3172	}	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3173	firstElement = 2;	*lbaPtr = 1;
3174		else if (!strcmp(start, "boot") && bootPtr)
3175		*bootPtr = strdup(param);
3176	}	}
3177
3178	/* handle the elilo case which does:	fclose(in);
	*   append="hypervisor args -- kernel args"
	*/
	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
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	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;
	}
	}
3179
3180	if (i < line->numElements && doreplace) {	return 0;
3181	/* direct replacement */	}
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
3182
3183	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	void dumpSysconfigGrub(void)
3184	/* root= replacement */	{
3185	rootLine = getLineByType(LT_ROOT, entry->lines);	char *boot = NULL;
3186	if (rootLine) {	int lba;
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
	}
	}
3187
3188	else {	if (isSuseSystem()) {
3189	/* insert/append */	if (parseSuseGrubConf(&lba, &boot)) {
3190	insertElement(line, *arg, i, cfg->cfi);	free(boot);
3191	usedElements = realloc(usedElements, line->numElements *	return;
3192	sizeof(*usedElements));	}
3193	memmove(&usedElements[i + 1], &usedElements[i],	} else {
3194	line->numElements - i - 1);	if (parseSysconfigGrub(&lba, &boot)) {
3195	usedElements[i] = 1;	free(boot);
3196		return;
3197	/* 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);
3198	}	}
	}
3199
3200	free(newArgs);	if (lba)
3201	free(oldArgs);	printf("lba\n");
3202		if (boot) {
3203	return 0;	printf("boot=%s\n", boot);
3204		free(boot);
3205		}
3206	}	}
3207
3208	int updateImage(struct grubConfig * cfg, const char * image,	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3209	const char * prefix, const char * addArgs,	{
3210	const char * removeArgs,	int i = 0;
3211	const char * addMBArgs, const char * removeMBArgs) {	struct singleEntry *entry;
3212	int rc = 0;	struct singleLine *line;
3213
3214	if (!image) return rc;	entry = findEntryByPath(config, kernel, prefix, &i);
3215		if (!entry) {
3216	/* update the main args first... */	fprintf(stderr, _("grubby: kernel not found\n"));
	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)
3217	return 1;	return 1;
3218	}	}
3219
3220	break;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3221	}	be a better way */
3222		if (config->cfi == &grubConfigType) {
3223	return 0;	dumpSysconfigGrub();
3224	}	} else {
3225		line = getLineByType(LT_BOOT, config->theLines);
3226		if (line && line->numElements >= 1) {
3227		printf("boot=%s\n", line->elements[1].item);
3228		}
3229
3230	int updateInitrd(struct grubConfig * cfg, const char * image,	line = getLineByType(LT_LBA, config->theLines);
3231	const char * prefix, const char * initrd, const char * title) {	if (line)
3232	struct singleEntry * entry;	printf("lba\n");
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL|LT_KERNEL_EFI|LT_KERNEL_16, 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);
	}
	line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, entry->lines);
	if (line)
	removeLine(entry, line);
	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);
	enum lineType_e lt;
	switch(kernelLine->type) {
	case LT_KERNEL:
	lt = LT_INITRD;
	break;
	case LT_KERNEL_EFI:
	lt = LT_INITRD_EFI;
	break;
	case LT_KERNEL_16:
	lt = LT_INITRD_16;
	break;
	default:
	lt = preferredLineType(LT_INITRD, cfg->cfi);
	}
	line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
	return 1;
3233	}	}
3234
3235	break;	displayEntry(config, entry, prefix, i);
	}
3236
3237	return 0;	i++;
3238		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239		displayEntry(config, entry, prefix, i);
3240		i++;
3241		}
3242
3243		return 0;
3244	}	}
3245
3246	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3247	int fd;	struct singleLine *tmplLine,
3248	unsigned char bootSect[512];	struct singleLine *prevLine,
3249	int offset;	const char *val, struct configFileInfo *cfi)
3250		{
3251	fd = open(device, O_RDONLY);	struct singleLine *newLine = lineDup(tmplLine);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3252
3253	if (read(fd, bootSect, 512) != 512) {	if (isEfi && cfi == &grub2ConfigType) {
3254	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	enum lineType_e old = newLine->type;
3255	device, strerror(errno));	newLine->type = preferredLineType(newLine->type, cfi);
3256	return 1;	if (old != newLine->type)
3257	}	newLine->elements[0].item =
3258	close(fd);	getKeyByType(newLine->type, cfi);
3259		}
3260
3261	/* first three bytes should match, a jmp short should be in there */	if (val) {
3262	if (memcmp(boot, bootSect, 3))	/* override the inherited value with our own.
3263	return 0;	* This is a little weak because it only applies to elements[1]
3264		*/
3265		if (newLine->numElements > 1)
3266		removeElement(newLine, 1);
3267		insertElement(newLine, val, 1, cfi);
3268
3269		/* but try to keep the rootspec from the template... sigh */
3270		if (tmplLine->
3271		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3272		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3273		LT_INITRD_16)) {
3274		char *rootspec =
3275		getRootSpecifier(tmplLine->elements[1].item);
3276		if (rootspec != NULL) {
3277		free(newLine->elements[1].item);
3278		newLine->elements[1].item =
3279		sdupprintf("%s%s", rootspec, val);
3280		}
3281		}
3282		}
3283
3284	if (boot[1] == JMP_SHORT_OPCODE) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285	offset = boot[2] + 2;	newLine->elements[0].item : "");
	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
	offset = (boot[3] << 8) + boot[2] + 2;
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* 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;
	}
3286
3287	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (!entry->lines) {
3288	return 0;	/* first one on the list */
3289		entry->lines = newLine;
3290		} else if (prevLine) {
3291		/* add after prevLine */
3292		newLine->next = prevLine->next;
3293		prevLine->next = newLine;
3294		}
3295
3296	return 2;	return newLine;
3297	}	}
3298
3299	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	/* val may be NULL */
3300	int fd;	struct singleLine *addLine(struct singleEntry *entry,
3301	char buf[65536];	struct configFileInfo *cfi,
3302	char * end;	enum lineType_e type, char *defaultIndent,
3303	char * chptr;	const char *val)
3304	char * chptr2;	{
3305	int rc;	struct singleLine *line, *prev;
3306		struct keywordTypes *kw;
3307	/* it's on raid; we need to parse /proc/mdstat and check all of the	struct singleLine tmpl;
	*raw* devices listed in there */
	if (!strncmp(mdDev, "/dev/", 5))
	mdDev += 5;
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
	return 2;
	}
3308
3309	rc = read(fd, buf, sizeof(buf) - 1);	/* NB: This function shouldn't allocate items on the heap, rather on
3310	if (rc < 0 || rc == (sizeof(buf) - 1)) {	* the stack since it calls addLineTmpl which will make copies.
3311	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	*/
3312	strerror(errno));	if (type == LT_TITLE && cfi->titleBracketed) {
3313	close(fd);	/* we're doing a bracketed title (zipl) */
3314	return 2;	tmpl.type = type;
3315	}	tmpl.numElements = 1;
3316	close(fd);	tmpl.elements = alloca(sizeof(*tmpl.elements));
3317	buf[rc] = '\0';	tmpl.elements[0].item = alloca(strlen(val) + 3);
3318		sprintf(tmpl.elements[0].item, "[%s]", val);
3319		tmpl.elements[0].indent = "";
3320		val = NULL;
3321		} else if (type == LT_MENUENTRY) {
3322		char *lineend = "--class gnu-linux --class gnu --class os {";
3323		if (!val) {
3324		fprintf(stderr,
3325		"Line type LT_MENUENTRY requires a value\n");
3326		abort();
3327		}
3328		kw = getKeywordByType(type, cfi);
3329		if (!kw) {
3330		fprintf(stderr,
3331		"Looking up keyword for unknown type %d\n",
3332		type);
3333		abort();
3334		}
3335		tmpl.indent = "";
3336		tmpl.type = type;
3337		tmpl.numElements = 3;
3338		tmpl.elements =
3339		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3340		tmpl.elements[0].item = kw->key;
3341		tmpl.elements[0].indent = alloca(2);
3342		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3343		tmpl.elements[1].item = (char *)val;
3344		tmpl.elements[1].indent = alloca(2);
3345		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3346		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3347		strcpy(tmpl.elements[2].item, lineend);
3348		tmpl.elements[2].indent = "";
3349		} else {
3350		kw = getKeywordByType(type, cfi);
3351		if (!kw) {
3352		fprintf(stderr,
3353		"Looking up keyword for unknown type %d\n",
3354		type);
3355		abort();
3356		}
3357		tmpl.type = type;
3358		tmpl.numElements = val ? 2 : 1;
3359		tmpl.elements =
3360		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3361		tmpl.elements[0].item = kw->key;
3362		tmpl.elements[0].indent = alloca(2);
3363		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3364		if (val) {
3365		tmpl.elements[1].item = (char *)val;
3366		tmpl.elements[1].indent = "";
3367		}
3368		}
3369
3370	chptr = buf;	/* The last non-empty line gives us the indention to us and the line
3371	while (*chptr) {	* to insert after. Note that comments are considered empty lines,
3372	end = strchr(chptr, '\n');	* which may not be ideal? If there are no lines or we are looking at
3373	if (!end) break;	* the first line, we use defaultIndent (the first line is normally
3374	*end = '\0';	* indented differently from the rest) */
3375		for (line = entry->lines, prev = NULL; line; line = line->next) {
3376		if (line->numElements)
3377		prev = line;
3378		/* fall back on the last line if prev isn't otherwise set */
3379		if (!line->next && !prev)
3380		prev = line;
3381		}
3382
3383		struct singleLine *menuEntry;
3384		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3385		if (tmpl.type == LT_ENTRY_END) {
3386		if (menuEntry)
3387		tmpl.indent = menuEntry->indent;
3388		else
3389		tmpl.indent = defaultIndent ? : "";
3390		} else if (tmpl.type != LT_MENUENTRY) {
3391		if (menuEntry)
3392		tmpl.indent = "\t";
3393		else if (prev == entry->lines)
3394		tmpl.indent = defaultIndent ? : "";
3395		else
3396		tmpl.indent = prev->indent;
3397		}
3398
3399	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3400	chptr[strlen(mdDev)] == ' ') {	}
3401
3402	/* found the device */	void removeLine(struct singleEntry *entry, struct singleLine *line)
3403	while (*chptr && *chptr != ':') chptr++;	{
3404	chptr++;	struct singleLine *prev;
3405	while (*chptr && isspace(*chptr)) chptr++;	int i;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* 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++;
	}
3406
3407	/*  we're good to go */	for (i = 0; i < line->numElements; i++) {
3408	return 2;	free(line->elements[i].item);
3409		free(line->elements[i].indent);
3410	}	}
3411		free(line->elements);
3412		free(line->indent);
3413
3414	chptr = end + 1;	if (line == entry->lines) {
3415	}	entry->lines = line->next;
3416		} else {
3417		prev = entry->lines;
3418		while (prev->next != line)
3419		prev = prev->next;
3420		prev->next = line->next;
3421		}
3422
3423	fprintf(stderr,	free(line);
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3424	}	}
3425
3426	int checkForLilo(struct grubConfig * config) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3427	int fd;	{
3428	unsigned char boot[512];	struct singleLine newLine = {
3429	struct singleLine * line;	.indent = tmplLine->indent,
3430		.type = tmplLine->type,
3431	for (line = config->theLines; line; line = line->next)	.next = tmplLine->next,
3432	if (line->type == LT_BOOT) break;	};
3433		int firstQuotedItem = -1;
3434	if (!line) {	int quoteLen = 0;
3435	fprintf(stderr,	int j;
3436	_("grubby: no boot line found in lilo configuration\n"));	int element = 0;
3437	return 1;	char *c;
	}
3438
3439	if (line->numElements != 2) return 1;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3440		strcpy(c, tmplLine->elements[0].item);
3441		insertElement(&newLine, c, element++, cfi);
3442		free(c);
3443		c = NULL;
3444
3445		for (j = 1; j < tmplLine->numElements; j++) {
3446		if (firstQuotedItem == -1) {
3447		quoteLen += strlen(tmplLine->elements[j].item);
3448
3449		if (isquote(tmplLine->elements[j].item[0])) {
3450		firstQuotedItem = j;
3451		quoteLen +=
3452		strlen(tmplLine->elements[j].indent);
3453		} else {
3454		c = malloc(quoteLen + 1);
3455		strcpy(c, tmplLine->elements[j].item);
3456		insertElement(&newLine, c, element++, cfi);
3457		free(c);
3458		quoteLen = 0;
3459		}
3460		} else {
3461		int itemlen = strlen(tmplLine->elements[j].item);
3462		quoteLen += itemlen;
3463		quoteLen += strlen(tmplLine->elements[j].indent);
3464
3465		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3466		c = malloc(quoteLen + 1);
3467		c[0] = '\0';
3468		for (int i = firstQuotedItem; i < j + 1; i++) {
3469		strcat(c, tmplLine->elements[i].item);
3470		strcat(c, tmplLine->elements[i].indent);
3471		}
3472		insertElement(&newLine, c, element++, cfi);
3473		free(c);
3474
3475	fd = open("/boot/boot.b", O_RDONLY);	firstQuotedItem = -1;
3476	if (fd < 0) {	quoteLen = 0;
3477	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	}
3478	"/boot/boot.b", strerror(errno));	}
3479	return 1;	}
3480	}	while (tmplLine->numElements)
3481		removeElement(tmplLine, 0);
3482		if (tmplLine->elements)
3483		free(tmplLine->elements);
3484
3485		tmplLine->numElements = newLine.numElements;
3486		tmplLine->elements = newLine.elements;
3487		}
3488
3489	if (read(fd, boot, 512) != 512) {	static void insertElement(struct singleLine *line,
3490	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *item, int insertHere,
3491	"/boot/boot.b", strerror(errno));	struct configFileInfo *cfi)
3492	return 1;	{
3493	}	struct keywordTypes *kw;
3494	close(fd);	char indent[2] = "";
3495
3496	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* sanity check */
3497	return checkLiloOnRaid(line->elements[1].item, boot);	if (insertHere > line->numElements) {
3498		dbgPrintf
3499		("insertElement() adjusting insertHere from %d to %d\n",
3500		insertHere, line->numElements);
3501		insertHere = line->numElements;
3502		}
3503
3504		line->elements = realloc(line->elements, (line->numElements + 1) *
3505		sizeof(*line->elements));
3506		memmove(&line->elements[insertHere + 1],
3507		&line->elements[insertHere],
3508		(line->numElements - insertHere) * sizeof(*line->elements));
3509		line->elements[insertHere].item = strdup(item);
3510
3511		kw = getKeywordByType(line->type, cfi);
3512
3513		if (line->numElements == 0) {
3514		indent[0] = '\0';
3515		} else if (insertHere == 0) {
3516		indent[0] = kw->nextChar;
3517		} else if (kw->separatorChar != '\0') {
3518		indent[0] = kw->separatorChar;
3519		} else {
3520		indent[0] = ' ';
3521		}
3522
3523	return checkDeviceBootloader(line->elements[1].item, boot);	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3524	}	/* move the end-of-line forward */
3525		line->elements[insertHere].indent =
3526		line->elements[insertHere - 1].indent;
3527		line->elements[insertHere - 1].indent = strdup(indent);
3528		} else {
3529		line->elements[insertHere].indent = strdup(indent);
3530		}
3531
3532	int checkForGrub2(struct grubConfig * config) {	line->numElements++;
	if (!access("/etc/grub.d/", R_OK))
	return 2;
3533
3534	return 1;	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3535		line->elements[0].item,
3536		line->elements[insertHere].item,
3537		line->elements[insertHere].indent, insertHere);
3538	}	}
3539
3540	int checkForGrub(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3541	int fd;	{
3542	unsigned char bootSect[512];	int i;
	char * boot;
	int onSuse = isSuseSystem();
3543
3544		/* sanity check */
3545		if (removeHere >= line->numElements)
3546		return;
3547
3548		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3549		removeHere, line->elements[removeHere].item);
3550
3551		free(line->elements[removeHere].item);
3552
3553		if (removeHere > 1) {
3554		/* previous argument gets this argument's post-indentation */
3555		free(line->elements[removeHere - 1].indent);
3556		line->elements[removeHere - 1].indent =
3557		line->elements[removeHere].indent;
3558		} else {
3559		free(line->elements[removeHere].indent);
3560		}
3561
3562	if (onSuse) {	/* now collapse the array, but don't bother to realloc smaller */
3563	if (parseSuseGrubConf(NULL, &boot))	for (i = removeHere; i < line->numElements - 1; i++)
3564	return 0;	line->elements[i] = line->elements[i + 1];
	} else {
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
	}
3565
3566	/* assume grub is not installed -- not an error condition */	line->numElements--;
3567	if (!boot)	}
	return 0;
3568
3569	fd = open("/boot/grub/stage1", O_RDONLY);	static int argNameMatch(const char *one, const char *two)
3570	if (fd < 0)	{
3571	/* this doesn't exist if grub hasn't been installed */	char *first, *second;
3572	return 0;	char *chptra, *chptrb;
3573		int rc;
3574
3575	if (read(fd, bootSect, 512) != 512) {	first = strcpy(alloca(strlen(one) + 1), one);
3576	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	second = strcpy(alloca(strlen(two) + 1), two);
	"/boot/grub/stage1", strerror(errno));
	close(fd);
	return 1;
	}
	close(fd);
3577
3578	/* The more elaborate checks do not work on SuSE. The checks done	chptra = strchr(first, '=');
3579	* seem to be reasonble (at least for now), so just return success	if (chptra)
3580	*/	*chptra = '\0';
	if (onSuse)
	return 2;
3581
3582	return checkDeviceBootloader(boot, bootSect);	chptrb = strchr(second, '=');
3583	}	if (chptrb)
3584		*chptrb = '\0';
3585
3586	int checkForExtLinux(struct grubConfig * config) {	rc = strcmp(first, second);
	int fd;
	unsigned char bootSect[512];
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
3587
3588	printf("entered: checkForExtLinux()\n");	if (chptra)
3589		*chptra = '=';
3590		if (chptrb)
3591		*chptrb = '=';
3592
3593	if (parseSysconfigGrub(NULL, &boot))	return rc;
3594	return 0;	}
3595
3596	/* assume grub is not installed -- not an error condition */	static int argHasValue(const char *arg)
3597	if (!boot)	{
3598	return 0;	char *chptr;
3599
3600	fd = open(executable, O_RDONLY);	chptr = strchr(arg, '=');
3601	if (fd < 0)	if (chptr)
3602	/* this doesn't exist if grub hasn't been installed */	return 1;
3603	return 0;	return 0;
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	executable, strerror(errno));
	return 1;
	}
	close(fd);
	return checkDeviceBootloader(boot, bootSect);
3604	}	}
3605
3606	int checkForYaboot(struct grubConfig * config) {	static int argValueMatch(const char *one, const char *two)
3607	/*	{
3608	* This is a simplistic check that we consider good enough for own puporses	char *first, *second;
3609	*	char *chptra, *chptrb;
	* 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;
3610
3611	return 1;	first = strcpy(alloca(strlen(one) + 1), one);
3612	}	second = strcpy(alloca(strlen(two) + 1), two);
3613
3614	int checkForElilo(struct grubConfig * config) {	chptra = strchr(first, '=');
3615	if (!access("/etc/elilo.conf", R_OK))	if (chptra)
3616	return 2;	chptra += 1;
3617
3618	return 1;	chptrb = strchr(second, '=');
3619		if (chptrb)
3620		chptrb += 1;
3621
3622		if (!chptra && !chptrb)
3623		return 0;
3624		else if (!chptra)
3625		return *chptrb - 0;
3626		else if (!chptrb)
3627		return 0 - *chptra;
3628		else
3629		return strcmp(chptra, chptrb);
3630	}	}
3631
3632	static char * getRootSpecifier(char * str) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3633	char * idx, * rootspec = NULL;	const char *prefix, const char *addArgs,
3634		const char *removeArgs, int multibootArgs)
3635		{
3636		struct singleEntry *entry;
3637		struct singleLine *line, *rootLine;
3638		int index = 0;
3639		int i, k;
3640		const char **newArgs, **oldArgs;
3641		const char **arg;
3642		int useKernelArgs, useRoot;
3643		int firstElement;
3644		int *usedElements;
3645		int doreplace;
3646
3647	if (*str == '(') {	if (!image)
3648	idx = rootspec = strdup(str);	return 0;
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
	}
3649
3650	static char * getInitrdVal(struct grubConfig * config,	if (!addArgs) {
3651	const char * prefix, struct singleLine *tmplLine,	newArgs = malloc(sizeof(*newArgs));
3652	const char * newKernelInitrd,	*newArgs = NULL;
3653	const char ** extraInitrds, int extraInitrdCount)	} else {
3654	{	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3655	char *initrdVal, *end;	fprintf(stderr,
3656	int i;	_("grubby: error separating arguments '%s'\n"),
3657	size_t totalSize;	addArgs);
3658	size_t prefixLen;	return 1;
3659	char separatorChar;	}
3660		}
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3661
3662	initrdVal = end = malloc(totalSize);	if (!removeArgs) {
3663		oldArgs = malloc(sizeof(*oldArgs));
3664		*oldArgs = NULL;
3665		} else {
3666		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3667		fprintf(stderr,
3668		_("grubby: error separating arguments '%s'\n"),
3669		removeArgs);
3670		free(newArgs);
3671		return 1;
3672		}
3673		}
3674
3675	end = stpcpy (end, newKernelInitrd + prefixLen);	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3676		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3677
3678	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3679	for (i = 0; i < extraInitrdCount; i++) {	&& !multibootArgs);
	const char *extraInitrd;
	int j;
3680
3681	extraInitrd = extraInitrds[i] + prefixLen;	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	/* Don't add entries that are already there */
	if (tmplLine != NULL) {
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
3682
3683	if (j != tmplLine->numElements)	if (multibootArgs && !entry->multiboot)
3684	continue;	continue;
	}
3685
3686	*end++ = separatorChar;	/* Determine where to put the args.  If this config supports
3687	end = stpcpy(end, extraInitrd);	* LT_KERNELARGS, use that.  Otherwise use
3688	}	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3689		*/
3690		if (useKernelArgs) {
3691		line = getLineByType(LT_KERNELARGS, entry->lines);
3692		if (!line) {
3693		/* no LT_KERNELARGS, need to add it */
3694		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3695		cfg->secondaryIndent, NULL);
3696		}
3697		firstElement = 1;
3698
3699	return initrdVal;	} else if (multibootArgs) {
3700	}	line = getLineByType(LT_HYPER, entry->lines);
3701		if (!line) {
3702		/* a multiboot entry without LT_HYPER? */
3703		continue;
3704		}
3705		firstElement = 2;
3706
3707	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	} else {
3708	const char * prefix,	line =
3709	const char * newKernelPath, const char * newKernelTitle,	getLineByType(LT_KERNEL | LT_MBMODULE |
3710	const char * newKernelArgs, const char * newKernelInitrd,	LT_KERNEL_EFI | LT_KERNEL_16,
3711	const char ** extraInitrds, int extraInitrdCount,	entry->lines);
3712	const char * newMBKernel, const char * newMBKernelArgs,	if (!line) {
3713	const char * newDevTreePath) {	/* no LT_KERNEL or LT_MBMODULE in this entry? */
3714	struct singleEntry * new;	continue;
3715	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	}
3716	int needs;	firstElement = 2;
3717	char * chptr;	}
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3718
3719	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	/* handle the elilo case which does:
3720	while (findEntryByPath(config, buf, NULL, NULL)) {	*   append="hypervisor args -- kernel args"
3721	sprintf(numBuf, "%d", i++);	*/
3722	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3723	}	/* this is a multiboot entry, make sure there's
3724		* -- on the args line
3725		*/
3726		for (i = firstElement; i < line->numElements; i++) {
3727		if (!strcmp(line->elements[i].item, "--"))
3728		break;
3729		}
3730		if (i == line->numElements) {
3731		/* assume all existing args are kernel args,
3732		* prepend -- to make it official
3733		*/
3734		insertElement(line, "--", firstElement,
3735		cfg->cfi);
3736		i = firstElement;
3737		}
3738		if (!multibootArgs) {
3739		/* kernel args start after the -- */
3740		firstElement = i + 1;
3741		}
3742		} else if (cfg->cfi->mbConcatArgs) {
3743		/* this is a non-multiboot entry, remove hyper args */
3744		for (i = firstElement; i < line->numElements; i++) {
3745		if (!strcmp(line->elements[i].item, "--"))
3746		break;
3747		}
3748		if (i < line->numElements) {
3749		/* remove args up to -- */
3750		while (strcmp
3751		(line->elements[firstElement].item,
3752		"--"))
3753		removeElement(line, firstElement);
3754		/* remove -- */
3755		removeElement(line, firstElement);
3756		}
3757		}
3758
3759	newKernelTitle = buf + 6;	usedElements = calloc(line->numElements, sizeof(*usedElements));
	}
3760
3761	new = malloc(sizeof(*new));	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	new->skip = 0;
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
	needs |= NEED_DEVTREE;
3762
3763	if (template) {	doreplace = 1;
3764	for (masterLine = template->lines;	for (i = firstElement; i < line->numElements; i++) {
3765	masterLine && (tmplLine = lineDup(masterLine));	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3766	lineFree(tmplLine), masterLine = masterLine->next)	!strcmp(line->elements[i].item, "--")) {
3767	{	/* reached the end of hyper args, insert here */
3768	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	doreplace = 0;
3769		break;
3770	/* skip comments */	}
3771	chptr = tmplLine->indent;	if (usedElements[i])
3772	while (*chptr && isspace(*chptr)) chptr++;	continue;
3773	if (*chptr == '#') continue;	if (!argNameMatch(line->elements[i].item, *arg)) {
3774		usedElements[i] = 1;
3775	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {	break;
3776	if (!template->multiboot && (needs & NEED_MB)) {	}
3777	/* it's not a multiboot template and this is the kernel	}
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	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);
	}
	}
3778
3779	} else {	if (i < line->numElements && doreplace) {
3780	/* don't have a template, so start the entry with the	/* direct replacement */
3781	* appropriate starting line	free(line->elements[i].item);
3782	*/	line->elements[i].item = strdup(*arg);
3783	switch (config->cfi->entryStart) {
3784	case LT_KERNEL:	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3785	case LT_KERNEL_EFI:	/* root= replacement */
3786	case LT_KERNEL_16:	rootLine = getLineByType(LT_ROOT, entry->lines);
3787	if (new->multiboot && config->cfi->mbHyperFirst) {	if (rootLine) {
3788	/* fall through to LT_HYPER */	free(rootLine->elements[1].item);
3789	} else {	rootLine->elements[1].item =
3790	newLine = addLine(new, config->cfi,	strdup(*arg + 5);
3791	preferredLineType(LT_KERNEL, config->cfi),	} else {
3792	config->primaryIndent,	rootLine =
3793	newKernelPath + strlen(prefix));	addLine(entry, cfg->cfi, LT_ROOT,
3794	needs &= ~NEED_KERNEL;	cfg->secondaryIndent,
3795	break;	*arg + 5);
3796		}
3797		}
3798
3799		else {
3800		/* insert/append */
3801		insertElement(line, *arg, i, cfg->cfi);
3802		usedElements =
3803		realloc(usedElements,
3804		line->numElements *
3805		sizeof(*usedElements));
3806		memmove(&usedElements[i + 1], &usedElements[i],
3807		line->numElements - i - 1);
3808		usedElements[i] = 1;
3809
3810		/* if we updated a root= here even though
3811		* there is a LT_ROOT available we need to
3812		* remove the LT_ROOT entry (this will happen
3813		* if we switch from a device to a label) */
3814		if (useRoot && !strncmp(*arg, "root=", 5)) {
3815		rootLine =
3816		getLineByType(LT_ROOT,
3817		entry->lines);
3818		if (rootLine)
3819		removeLine(entry, rootLine);
3820		}
3821		}
3822	}	}
3823
3824	case LT_HYPER:	free(usedElements);
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3825
3826	case LT_MENUENTRY: {	for (arg = oldArgs; *arg; arg++) {
3827	char *nkt = malloc(strlen(newKernelTitle)+3);	for (i = firstElement; i < line->numElements; i++) {
3828	strcpy(nkt, "'");	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3829	strcat(nkt, newKernelTitle);	!strcmp(line->elements[i].item, "--"))
3830	strcat(nkt, "'");	/* reached the end of hyper args, stop here */
3831	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
3832	config->primaryIndent, nkt);	if (!argNameMatch(line->elements[i].item, *arg)) {
3833	free(nkt);	if (!argHasValue(*arg) ||
3834	needs &= ~NEED_TITLE;	!argValueMatch(line->elements[i].item, *arg)) {
3835	needs |= NEED_END;	removeElement(line, i);
3836	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++;
3837	}	}
3838	}	}
	x++;
3839	}	}
3840	newLine = addLine(new, config->cfi, LT_TITLE,	/* handle removing LT_ROOT line too */
3841	config->primaryIndent, templabel);	if (useRoot && !strncmp(*arg, "root=", 5)) {
3842	free(templabel);	rootLine = getLineByType(LT_ROOT, entry->lines);
3843	}else{	if (rootLine)
3844	newLine = addLine(new, config->cfi, LT_TITLE,	removeLine(entry, rootLine);
3845	config->primaryIndent, newKernelTitle);	}
3846	}	}
	needs &= ~NEED_TITLE;
	break;
3847
3848	default:	if (line->numElements == 1) {
3849	abort();	/* don't need the line at all (note it has to be a
3850		LT_KERNELARGS for this to happen */
3851		removeLine(entry, line);
3852		}
3853	}	}
	}
	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;
	}
3854
3855	if (needs) {	free(newArgs);
3856	printf(_("grubby: needs=%d, aborting\n"), needs);	free(oldArgs);
	abort();
	}
	if (updateImage(config, "0", prefix, newKernelArgs, NULL,
	newMBKernelArgs, NULL)) return 1;
3857
3858	return 0;	return 0;
3859	}	}
3860
3861	static void traceback(int signum)	int updateImage(struct grubConfig *cfg, const char *image,
3862		const char *prefix, const char *addArgs,
3863		const char *removeArgs,
3864		const char *addMBArgs, const char *removeMBArgs)
3865	{	{
3866	void *array[40];	int rc = 0;
	size_t size;
3867
3868	signal(SIGSEGV, SIG_DFL);	if (!image)
3869	memset(array, '\0', sizeof (array));	return rc;
	size = backtrace(array, 40);
	fprintf(stderr, "grubby received SIGSEGV!  Backtrace (%ld):\n",
	(unsigned long)size);
	backtrace_symbols_fd(array, size, STDERR_FILENO);
	exit(1);
	}
	int main(int argc, const char ** argv) {
	poptContext optCon;
	const char * grubConfig = NULL;
	char * outputFile = NULL;
	int arg = 0;
	int flags = 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;
	signal(SIGSEGV, traceback);
	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);
	}
3870
3871	optCon = poptGetContext("grubby", argc, argv, options, 0);	/* update the main args first... */
3872	poptReadDefaultConfig(optCon, 1);	if (addArgs || removeArgs)
3873		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3874		0);
3875		if (rc)
3876		return rc;
3877
3878		/* and now any multiboot args */
3879		if (addMBArgs || removeMBArgs)
3880		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3881		removeMBArgs, 1);
3882		return rc;
3883		}
3884
3885		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3886		const char *image, const char *prefix, const char *initrd,
3887		const char *title)
3888		{
3889		struct singleEntry *entry;
3890		struct singleLine *line, *kernelLine, *endLine = NULL;
3891		int index = 0;
3892
3893	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (!image)
3894	switch (arg) {	return 0;
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
	return 1;
	}
	break;
	}
	}
3895
3896	if (arg < -1) {	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3897	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3898	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	if (!kernelLine)
3899	poptStrerror(arg));	continue;
3900	return 1;
3901	}	/* if title is supplied, the entry's title must match it. */
3902		if (title) {
3903		char *linetitle;
3904
3905		line =
3906		getLineByType(LT_TITLE | LT_MENUENTRY,
3907		entry->lines);
3908		if (!line)
3909		continue;
3910
3911		linetitle = extractTitle(cfg, line);
3912		if (!linetitle)
3913		continue;
3914		if (strcmp(title, linetitle)) {
3915		free(linetitle);
3916		continue;
3917		}
3918		free(linetitle);
3919		}
3920
3921	if ((chptr = poptGetArg(optCon))) {	if (prefix) {
3922	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	int prefixLen = strlen(prefix);
3923	return 1;	if (!strncmp(initrd, prefix, prefixLen))
3924	}	initrd += prefixLen;
3925		}
3926		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3927		if (endLine)
3928		removeLine(entry, endLine);
3929		line =
3930		addLine(entry, cfg->cfi,
3931		preferredLineType(LT_MBMODULE, cfg->cfi),
3932		kernelLine->indent, initrd);
3933		if (!line)
3934		return 1;
3935		if (endLine) {
3936		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3937		if (!line)
3938		return 1;
3939		}
3940
3941	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	break;
3942	configureYaboot + configureSilo + configureZipl +	}
	configureExtLinux ) > 1) {
	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;
	}
3943
3944	if (!cfi) {	return 0;
3945	if (grub2FindConfig(&grub2ConfigType)) {	}
	cfi = &grub2ConfigType;
	if (envPath)
	cfi->envFile = envPath;
	} else
	#ifdef __ia64__
	cfi = &eliloConfigType;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
3946
3947	if (!grubConfig) {	int updateInitrd(struct grubConfig *cfg, const char *image,
3948	if (cfi->findConfig)	const char *prefix, const char *initrd, const char *title)
3949	grubConfig = cfi->findConfig(cfi);	{
3950	if (!grubConfig)	struct singleEntry *entry;
3951	grubConfig = cfi->defaultConfig;	struct singleLine *line, *kernelLine, *endLine = NULL;
3952	}	int index = 0;
3953
3954	if (bootloaderProbe && (displayDefault || kernelInfo ||	if (!image)
3955	newKernelPath || removeKernelPath || makeDefault ||	return 0;
	defaultKernel || displayDefaultIndex || displayDefaultTitle ||
	(defaultIndex >= 0))) {
	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "
	"specified option"));
	return 1;
	}
3956
3957	if ((displayDefault || kernelInfo) && (newKernelPath ||	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3958	removeKernelPath)) {	kernelLine =
3959	fprintf(stderr, _("grubby: --default-kernel and --info may not "	getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3960	"be used when adding or removing kernels\n"));	entry->lines);
3961	return 1;	if (!kernelLine)
3962	}	continue;
3963
3964		/* if title is supplied, the entry's title must match it. */
3965		if (title) {
3966		char *linetitle;
3967
3968		line =
3969		getLineByType(LT_TITLE | LT_MENUENTRY,
3970		entry->lines);
3971		if (!line)
3972		continue;
3973
3974		linetitle = extractTitle(cfg, line);
3975		if (!linetitle)
3976		continue;
3977		if (strcmp(title, linetitle)) {
3978		free(linetitle);
3979		continue;
3980		}
3981		free(linetitle);
3982		}
3983
3984	if (newKernelPath && !newKernelTitle) {	line =
3985	fprintf(stderr, _("grubby: kernel title must be specified\n"));	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3986	return 1;	entry->lines);
3987	} else if (!newKernelPath && (copyDefault ||	if (line)
3988	(newKernelInitrd && !updateKernelPath)||	removeLine(entry, line);
3989	makeDefault || extraInitrdCount > 0)) {	if (prefix) {
3990	fprintf(stderr, _("grubby: kernel path expected\n"));	int prefixLen = strlen(prefix);
3991	return 1;	if (!strncmp(initrd, prefix, prefixLen))
3992	}	initrd += prefixLen;
3993		}
3994		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3995		if (endLine)
3996		removeLine(entry, endLine);
3997		enum lineType_e lt;
3998		switch (kernelLine->type) {
3999		case LT_KERNEL:
4000		lt = LT_INITRD;
4001		break;
4002		case LT_KERNEL_EFI:
4003		lt = LT_INITRD_EFI;
4004		break;
4005		case LT_KERNEL_16:
4006		lt = LT_INITRD_16;
4007		break;
4008		default:
4009		lt = preferredLineType(LT_INITRD, cfg->cfi);
4010		}
4011		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
4012		if (!line)
4013		return 1;
4014		if (endLine) {
4015		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
4016		if (!line)
4017		return 1;
4018		}
4019
4020	if (newKernelPath && updateKernelPath) {	break;
4021	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	}
	"not be used together"));
	return 1;
	}
4022
4023	if (makeDefault && defaultKernel) {	return 0;
4024	fprintf(stderr, _("grubby: --make-default and --default-kernel "	}
	"may not be used together\n"));
	return 1;
	} else if (defaultKernel && removeKernelPath &&
	!strcmp(defaultKernel, removeKernelPath)) {
	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;
	}
4025
4026	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
4027	fprintf(stderr, _("grubby: output file must be specified if stdin "	{
4028	"is used\n"));	int fd;
4029	return 1;	unsigned char bootSect[512];
4030	}	int offset;
4031
4032		fd = open(device, O_RDONLY);
4033		if (fd < 0) {
4034		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4035		device, strerror(errno));
4036		return 1;
4037		}
4038
4039	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (read(fd, bootSect, 512) != 512) {
4040	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4041	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	device, strerror(errno));
4042	&& (defaultIndex == -1)) {	return 1;
4043	fprintf(stderr, _("grubby: no action specified\n"));	}
4044	return 1;	close(fd);
	}
4045
4046	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	/* first three bytes should match, a jmp short should be in there */
4047		if (memcmp(boot, bootSect, 3))
4048		return 0;
4049
4050	if (cfi->needsBootPrefix) {	if (boot[1] == JMP_SHORT_OPCODE) {
4051	if (!bootPrefix) {	offset = boot[2] + 2;
4052	bootPrefix = findBootPrefix();	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4053	if (!bootPrefix) return 1;	offset = (boot[3] << 8) + boot[2] + 2;
4054		} else if (boot[0] == JMP_SHORT_OPCODE) {
4055		offset = boot[1] + 2;
4056		/*
4057		* it looks like grub, when copying stage1 into the mbr,
4058		* patches stage1 right after the JMP location, replacing
4059		* other instructions such as JMPs for NOOPs. So, relax the
4060		* check a little bit by skipping those different bytes.
4061		*/
4062		if ((bootSect[offset + 1] == NOOP_OPCODE)
4063		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4064		offset = offset + 3;
4065		}
4066		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4067		offset = (boot[2] << 8) + boot[1] + 2;
4068	} else {	} else {
4069	/* this shouldn't end with a / */	return 0;
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
4070	}	}
	} else {
	bootPrefix = "";
	}
4071
4072	if (!cfi->mbAllowExtraInitRds &&	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4073	extraInitrdCount > 0) {	return 0;
	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);
	return 1;
	}
	if (bootloaderProbe) {
	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;
	const char *grub2config = grub2FindConfig(&grub2ConfigType);
	if (grub2config) {
	gconfig = readConfig(grub2config, &grub2ConfigType);
	if (!gconfig)
	gr2c = 1;
	else
	gr2c = checkForGrub2(gconfig);
	}
	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");
4074
4075	return 0;	return 2;
4076	}	}
4077
4078	if (grubConfig == NULL) {	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4079	printf("Could not find bootloader configuration file.\n");	{
4080	exit(1);	int fd;
4081	}	char buf[65536];
4082		char *end;
4083		char *chptr;
4084		char *chptr2;
4085		int rc;
4086
4087		/* it's on raid; we need to parse /proc/mdstat and check all of the
4088		*raw* devices listed in there */
4089
4090		if (!strncmp(mdDev, "/dev/", 5))
4091		mdDev += 5;
4092
4093		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4094		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4095		strerror(errno));
4096		return 2;
4097		}
4098
4099		rc = read(fd, buf, sizeof(buf) - 1);
4100		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4101		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4102		strerror(errno));
4103		close(fd);
4104		return 2;
4105		}
4106		close(fd);
4107		buf[rc] = '\0';
4108
4109		chptr = buf;
4110		while (*chptr) {
4111		end = strchr(chptr, '\n');
4112		if (!end)
4113		break;
4114		*end = '\0';
4115
4116	config = readConfig(grubConfig, cfi);	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4117	if (!config) return 1;	chptr[strlen(mdDev)] == ' ') {
4118
4119	if (displayDefault) {	/* found the device */
4120	struct singleLine * line;	while (*chptr && *chptr != ':')
4121	struct singleEntry * entry;	chptr++;
4122	char * rootspec;	chptr++;
4123		while (*chptr && isspace(*chptr))
4124	if (config->defaultImage == -1) return 0;	chptr++;
4125	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
4126	cfi->defaultIsSaved)	/* skip the "active" bit */
4127	config->defaultImage = 0;	while (*chptr && !isspace(*chptr))
4128	entry = findEntryByIndex(config, config->defaultImage);	chptr++;
4129	if (!entry) return 0;	while (*chptr && isspace(*chptr))
4130	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;	chptr++;
4131
4132	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);	/* skip the raid level */
4133	if (!line) return 0;	while (*chptr && !isspace(*chptr))
4134		chptr++;
4135	rootspec = getRootSpecifier(line->elements[1].item);	while (*chptr && isspace(*chptr))
4136	printf("%s%s\n", bootPrefix, line->elements[1].item +	chptr++;
4137	((rootspec != NULL) ? strlen(rootspec) : 0));
4138		/* everything else is partition stuff */
4139		while (*chptr) {
4140		chptr2 = chptr;
4141		while (*chptr2 && *chptr2 != '[')
4142		chptr2++;
4143		if (!*chptr2)
4144		break;
4145
4146		/* yank off the numbers at the end */
4147		chptr2--;
4148		while (isdigit(*chptr2) && chptr2 > chptr)
4149		chptr2--;
4150		chptr2++;
4151		*chptr2 = '\0';
4152
4153		/* Better, now we need the /dev/ back. We're
4154		* done with everything before this point, so
4155		* we can just put the /dev/ part there.
4156		* There will always be room. */
4157		memcpy(chptr - 5, "/dev/", 5);
4158		rc = checkDeviceBootloader(chptr - 5, boot);
4159		if (rc != 2) {
4160		return rc;
4161		}
4162
4163		chptr = chptr2 + 1;
4164		/* skip the [11] bit */
4165		while (*chptr && !isspace(*chptr))
4166		chptr++;
4167		/* and move to the next one */
4168		while (*chptr && isspace(*chptr))
4169		chptr++;
4170		}
4171
4172		/*  we're good to go */
4173		return 2;
4174		}
4175
4176		chptr = end + 1;
4177		}
4178
4179		fprintf(stderr,
4180		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4181		mdDev);
4182	return 0;	return 0;
4183		}
4184
4185		int checkForLilo(struct grubConfig *config)
4186		{
4187		int fd;
4188		unsigned char boot[512];
4189		struct singleLine *line;
4190
4191		for (line = config->theLines; line; line = line->next)
4192		if (line->type == LT_BOOT)
4193		break;
4194
4195		if (!line) {
4196		fprintf(stderr,
4197		_
4198		("grubby: no boot line found in lilo configuration\n"));
4199		return 1;
4200		}
4201
4202		if (line->numElements != 2)
4203		return 1;
4204
4205	} else if (displayDefaultTitle) {	fd = open("/boot/boot.b", O_RDONLY);
4206	struct singleLine * line;	if (fd < 0) {
4207	struct singleEntry * entry;	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4208		"/boot/boot.b", strerror(errno));
4209	if (config->defaultImage == -1) return 0;	return 1;
4210	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	}
	cfi->defaultIsSaved)
	config->defaultImage = 0;
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
4211
4212		if (read(fd, boot, 512) != 512) {
4213		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4214		"/boot/boot.b", strerror(errno));
4215		return 1;
4216		}
4217		close(fd);
4218
4219		if (!strncmp("/dev/md", line->elements[1].item, 7))
4220		return checkLiloOnRaid(line->elements[1].item, boot);
4221
4222		return checkDeviceBootloader(line->elements[1].item, boot);
4223		}
4224
4225		int checkForGrub2(struct grubConfig *config)
4226		{
4227		if (!access("/etc/grub.d/", R_OK))
4228		return 2;
4229
4230		return 1;
4231		}
4232
4233		int checkForGrub(struct grubConfig *config)
4234		{
4235		int fd;
4236		unsigned char bootSect[512];
4237		char *boot;
4238		int onSuse = isSuseSystem();
4239
4240		if (onSuse) {
4241		if (parseSuseGrubConf(NULL, &boot))
4242		return 0;
4243	} else {	} else {
4244	char * title;	if (parseSysconfigGrub(NULL, &boot))
4245		return 0;
4246		}
4247
4248		/* assume grub is not installed -- not an error condition */
4249		if (!boot)
4250		return 0;
4251
4252	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	fd = open("/boot/grub/stage1", O_RDONLY);
4253	line = getLineByType(LT_MENUENTRY, entry->lines);	if (fd < 0)
4254	if (!line) return 0;	/* this doesn't exist if grub hasn't been installed */
4255	title = grub2ExtractTitle(line);	return 0;
4256	if (title)
4257	printf("%s\n", title);	if (read(fd, bootSect, 512) != 512) {
4258		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4259		"/boot/grub/stage1", strerror(errno));
4260		close(fd);
4261		return 1;
4262	}	}
4263		close(fd);
4264
4265		/* The more elaborate checks do not work on SuSE. The checks done
4266		* seem to be reasonble (at least for now), so just return success
4267		*/
4268		if (onSuse)
4269		return 2;
4270
4271		return checkDeviceBootloader(boot, bootSect);
4272		}
4273
4274		int checkForExtLinux(struct grubConfig *config)
4275		{
4276		int fd;
4277		unsigned char bootSect[512];
4278		char *boot;
4279		char executable[] = "/boot/extlinux/extlinux";
4280
4281		printf("entered: checkForExtLinux()\n");
4282
4283		if (parseSysconfigGrub(NULL, &boot))
4284		return 0;
4285
4286		/* assume grub is not installed -- not an error condition */
4287		if (!boot)
4288		return 0;
4289
4290		fd = open(executable, O_RDONLY);
4291		if (fd < 0)
4292		/* this doesn't exist if grub hasn't been installed */
4293		return 0;
4294
4295		if (read(fd, bootSect, 512) != 512) {
4296		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4297		executable, strerror(errno));
4298		return 1;
4299		}
4300		close(fd);
4301
4302		return checkDeviceBootloader(boot, bootSect);
4303		}
4304
4305		int checkForYaboot(struct grubConfig *config)
4306		{
4307		/*
4308		* This is a simplistic check that we consider good enough for own puporses
4309		*
4310		* If we were to properly check if yaboot is *installed* we'd need to:
4311		* 1) get the system boot device (LT_BOOT)
4312		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4313		*    the content on the boot device
4314		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4315		* 4) check again if binary and boot device contents match
4316		*/
4317		if (!access("/etc/yaboot.conf", R_OK))
4318		return 2;
4319
4320		return 1;
4321		}
4322
4323		int checkForElilo(struct grubConfig *config)
4324		{
4325		if (!access("/etc/elilo.conf", R_OK))
4326		return 2;
4327
4328		return 1;
4329		}
4330
4331		static char *getRootSpecifier(char *str)
4332		{
4333		char *idx, *rootspec = NULL;
4334
4335		if (*str == '(') {
4336		idx = rootspec = strdup(str);
4337		while (*idx && (*idx != ')') && (!isspace(*idx)))
4338		idx++;
4339		*(++idx) = '\0';
4340		}
4341		return rootspec;
4342		}
4343
4344		static char *getInitrdVal(struct grubConfig *config,
4345		const char *prefix, struct singleLine *tmplLine,
4346		const char *newKernelInitrd,
4347		const char **extraInitrds, int extraInitrdCount)
4348		{
4349		char *initrdVal, *end;
4350		int i;
4351		size_t totalSize;
4352		size_t prefixLen;
4353		char separatorChar;
4354
4355		prefixLen = strlen(prefix);
4356		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4357
4358		for (i = 0; i < extraInitrdCount; i++) {
4359		totalSize += sizeof(separatorChar);
4360		totalSize += strlen(extraInitrds[i]) - prefixLen;
4361		}
4362
4363		initrdVal = end = malloc(totalSize);
4364
4365		end = stpcpy(end, newKernelInitrd + prefixLen);
4366
4367		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4368		for (i = 0; i < extraInitrdCount; i++) {
4369		const char *extraInitrd;
4370		int j;
4371
4372		extraInitrd = extraInitrds[i] + prefixLen;
4373		/* Don't add entries that are already there */
4374		if (tmplLine != NULL) {
4375		for (j = 2; j < tmplLine->numElements; j++)
4376		if (strcmp
4377		(extraInitrd,
4378		tmplLine->elements[j].item) == 0)
4379		break;
4380
4381		if (j != tmplLine->numElements)
4382		continue;
4383		}
4384
4385		*end++ = separatorChar;
4386		end = stpcpy(end, extraInitrd);
4387		}
4388
4389		return initrdVal;
4390		}
4391
4392		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4393		const char *prefix,
4394		const char *newKernelPath, const char *newKernelTitle,
4395		const char *newKernelArgs, const char *newKernelInitrd,
4396		const char **extraInitrds, int extraInitrdCount,
4397		const char *newMBKernel, const char *newMBKernelArgs,
4398		const char *newDevTreePath, int newIndex)
4399		{
4400		struct singleEntry *new, *entry, *prev = NULL;
4401		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4402		int needs;
4403		char *indexs;
4404		char *chptr;
4405		int rc;
4406
4407		if (!newKernelPath)
4408		return 0;
4409
4410		rc = asprintf(&indexs, "%d", newIndex);
4411		if (rc < 0)
4412		return 1;
4413
4414		/* if the newKernelTitle is too long silently munge it into something
4415		* we can live with. truncating is first check, then we'll just mess with
4416		* it until it looks better */
4417		if (config->cfi->maxTitleLength &&
4418		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4419		char *buf = alloca(config->cfi->maxTitleLength + 7);
4420		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4421		int i = 1;
4422
4423		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4424		newKernelTitle);
4425		while (findEntryByPath(config, buf, NULL, NULL)) {
4426		sprintf(numBuf, "%d", i++);
4427		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4428		}
4429
4430		newKernelTitle = buf + 6;
4431		}
4432
4433		new = malloc(sizeof(*new));
4434		new->skip = 0;
4435		new->multiboot = 0;
4436		new->lines = NULL;
4437		entry = config->entries;
4438		for (unsigned int i = 0; i < newIndex; i++) {
4439		if (!entry)
4440		break;
4441		prev = entry;
4442		entry = entry->next;
4443		}
4444		new->next = entry;
4445
4446		if (prev)
4447		prev->next = new;
4448		else
4449		config->entries = new;
4450
4451		/* copy/update from the template */
4452		needs = NEED_KERNEL | NEED_TITLE;
4453		if (newKernelInitrd)
4454		needs |= NEED_INITRD;
4455		if (newMBKernel) {
4456		needs |= NEED_MB;
4457		new->multiboot = 1;
4458		}
4459		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4460		needs |= NEED_DEVTREE;
4461
4462		if (template) {
4463		for (masterLine = template->lines;
4464		masterLine && (tmplLine = lineDup(masterLine));
4465		lineFree(tmplLine), masterLine = masterLine->next) {
4466		dbgPrintf("addNewKernel processing %d\n",
4467		tmplLine->type);
4468
4469		/* skip comments */
4470		chptr = tmplLine->indent;
4471		while (*chptr && isspace(*chptr))
4472		chptr++;
4473		if (*chptr == '#')
4474		continue;
4475
4476		if (iskernel(tmplLine->type)
4477		&& tmplLine->numElements >= 2) {
4478		if (!template->multiboot && (needs & NEED_MB)) {
4479		/* it's not a multiboot template and
4480		* this is the kernel line.  Try to
4481		* be intelligent about inserting the
4482		* hypervisor at the same time.
4483		*/
4484		if (config->cfi->mbHyperFirst) {
4485		/* insert the hypervisor first */
4486		newLine =
4487		addLine(new, config->cfi,
4488		LT_HYPER,
4489		tmplLine->indent,
4490		newMBKernel +
4491		strlen(prefix));
4492		/* set up for adding the
4493		* kernel line */
4494		free(tmplLine->indent);
4495		tmplLine->indent =
4496		strdup(config->
4497		secondaryIndent);
4498		needs &= ~NEED_MB;
4499		}
4500		if (needs & NEED_KERNEL) {
4501		/* use addLineTmpl to
4502		* preserve line elements,
4503		* otherwise we could just
4504		* call addLine.
4505		* Unfortunately this means
4506		* making some changes to the
4507		* template such as the
4508		* indent change above and
4509		* the type change below.
4510		*/
4511		struct keywordTypes *mbm_kw =
4512		getKeywordByType
4513		(LT_MBMODULE, config->cfi);
4514		if (mbm_kw) {
4515		tmplLine->type =
4516		LT_MBMODULE;
4517		free(tmplLine->
4518		elements[0].item);
4519		tmplLine->elements[0].
4520		item =
4521		strdup(mbm_kw->key);
4522		}
4523		newLine =
4524		addLineTmpl(new, tmplLine,
4525		newLine,
4526		newKernelPath +
4527		strlen(prefix),
4528		config->cfi);
4529		needs &= ~NEED_KERNEL;
4530		}
4531		if (needs & NEED_MB) { /* !mbHyperFirst */
4532		newLine =
4533		addLine(new, config->cfi,
4534		LT_HYPER,
4535		config->
4536		secondaryIndent,
4537		newMBKernel +
4538		strlen(prefix));
4539		needs &= ~NEED_MB;
4540		}
4541		} else if (needs & NEED_KERNEL) {
4542		newLine =
4543		addLineTmpl(new, tmplLine, newLine,
4544		newKernelPath +
4545		strlen(prefix),
4546		config->cfi);
4547		needs &= ~NEED_KERNEL;
4548		}
4549
4550		} else if (tmplLine->type == LT_HYPER &&
4551		tmplLine->numElements >= 2) {
4552		if (needs & NEED_MB) {
4553		newLine =
4554		addLineTmpl(new, tmplLine, newLine,
4555		newMBKernel +
4556		strlen(prefix),
4557		config->cfi);
4558		needs &= ~NEED_MB;
4559		}
4560
4561		} else if (tmplLine->type == LT_MBMODULE &&
4562		tmplLine->numElements >= 2) {
4563		if (new->multiboot) {
4564		if (needs & NEED_KERNEL) {
4565		newLine =
4566		addLineTmpl(new, tmplLine,
4567		newLine,
4568		newKernelPath +
4569		strlen(prefix),
4570		config->cfi);
4571		needs &= ~NEED_KERNEL;
4572		} else if (config->cfi->mbInitRdIsModule
4573		&& (needs & NEED_INITRD)) {
4574		char *initrdVal;
4575		initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLineTmpl(new, tmplLine,
4583		newLine,
4584		initrdVal,
4585		config->cfi);
4586		free(initrdVal);
4587		needs &= ~NEED_INITRD;
4588		}
4589		} else if (needs & NEED_KERNEL) {
4590		/* template is multi but new is not,
4591		* insert the kernel in the first
4592		* module slot
4593		*/
4594		tmplLine->type =
4595		preferredLineType(LT_KERNEL,
4596		config->cfi);
4597		free(tmplLine->elements[0].item);
4598		tmplLine->elements[0].item =
4599		strdup(getKeywordByType
4600		(tmplLine->type,
4601		config->cfi)->key);
4602		newLine =
4603		addLineTmpl(new, tmplLine, newLine,
4604		newKernelPath +
4605		strlen(prefix),
4606		config->cfi);
4607		needs &= ~NEED_KERNEL;
4608		} else if (needs & NEED_INITRD) {
4609		char *initrdVal;
4610		/* template is multi but new is not,
4611		* insert the initrd in the second
4612		* module slot
4613		*/
4614		tmplLine->type =
4615		preferredLineType(LT_INITRD,
4616		config->cfi);
4617		free(tmplLine->elements[0].item);
4618		tmplLine->elements[0].item =
4619		strdup(getKeywordByType
4620		(tmplLine->type,
4621		config->cfi)->key);
4622		initrdVal =
4623		getInitrdVal(config, prefix,
4624		tmplLine,
4625		newKernelInitrd,
4626		extraInitrds,
4627		extraInitrdCount);
4628		newLine =
4629		addLineTmpl(new, tmplLine, newLine,
4630		initrdVal, config->cfi);
4631		free(initrdVal);
4632		needs &= ~NEED_INITRD;
4633		}
4634
4635		} else if (isinitrd(tmplLine->type)
4636		&& tmplLine->numElements >= 2) {
4637		if (needs & NEED_INITRD && new->multiboot
4638		&& !template->multiboot
4639		&& config->cfi->mbInitRdIsModule) {
4640		/* make sure we don't insert the
4641		* module initrd before the module
4642		* kernel... if we don't do it here,
4643		* it will be inserted following the
4644		* template.
4645		*/
4646		if (!needs & NEED_KERNEL) {
4647		char *initrdVal;
4648
4649		initrdVal =
4650		getInitrdVal(config, prefix,
4651		tmplLine,
4652		newKernelInitrd,
4653		extraInitrds,
4654		extraInitrdCount);
4655		newLine =
4656		addLine(new, config->cfi,
4657		LT_MBMODULE,
4658		config->
4659		secondaryIndent,
4660		initrdVal);
4661		free(initrdVal);
4662		needs &= ~NEED_INITRD;
4663		}
4664		} else if (needs & NEED_INITRD) {
4665		char *initrdVal;
4666		initrdVal =
4667		getInitrdVal(config, prefix,
4668		tmplLine,
4669		newKernelInitrd,
4670		extraInitrds,
4671		extraInitrdCount);
4672		newLine =
4673		addLineTmpl(new, tmplLine, newLine,
4674		initrdVal, config->cfi);
4675		free(initrdVal);
4676		needs &= ~NEED_INITRD;
4677		}
4678
4679		} else if (tmplLine->type == LT_MENUENTRY &&
4680		(needs & NEED_TITLE)) {
4681		requote(tmplLine, config->cfi);
4682		char *nkt = malloc(strlen(newKernelTitle) + 3);
4683		strcpy(nkt, "'");
4684		strcat(nkt, newKernelTitle);
4685		strcat(nkt, "'");
4686		newLine =
4687		addLineTmpl(new, tmplLine, newLine, nkt,
4688		config->cfi);
4689		free(nkt);
4690		needs &= ~NEED_TITLE;
4691		} else if (tmplLine->type == LT_TITLE &&
4692		(needs & NEED_TITLE)) {
4693		if (tmplLine->numElements >= 2) {
4694		newLine =
4695		addLineTmpl(new, tmplLine, newLine,
4696		newKernelTitle,
4697		config->cfi);
4698		needs &= ~NEED_TITLE;
4699		} else if (tmplLine->numElements == 1 &&
4700		config->cfi->titleBracketed) {
4701		/* addLineTmpl doesn't handle
4702		* titleBracketed */
4703		newLine =
4704		addLine(new, config->cfi, LT_TITLE,
4705		tmplLine->indent,
4706		newKernelTitle);
4707		needs &= ~NEED_TITLE;
4708		}
4709		} else if (tmplLine->type == LT_ECHO) {
4710		requote(tmplLine, config->cfi);
4711		static const char *prefix = "'Loading ";
4712		if (tmplLine->numElements > 1 &&
4713		strstr(tmplLine->elements[1].item, prefix)
4714		&& masterLine->next
4715		&& iskernel(masterLine->next->type)) {
4716		char *newTitle =
4717		malloc(strlen(prefix) +
4718		strlen(newKernelTitle) + 2);
4719
4720		strcpy(newTitle, prefix);
4721		strcat(newTitle, newKernelTitle);
4722		strcat(newTitle, "'");
4723		newLine =
4724		addLine(new, config->cfi, LT_ECHO,
4725		tmplLine->indent, newTitle);
4726		free(newTitle);
4727		} else {
4728		/* pass through other lines from the
4729		* template */
4730		newLine =
4731		addLineTmpl(new, tmplLine, newLine,
4732		NULL, config->cfi);
4733		}
4734		} else if (tmplLine->type == LT_DEVTREE &&
4735		tmplLine->numElements == 2
4736		&& newDevTreePath) {
4737		newLine =
4738		addLineTmpl(new, tmplLine, newLine,
4739		newDevTreePath + strlen(prefix),
4740		config->cfi);
4741		needs &= ~NEED_DEVTREE;
4742		} else if (tmplLine->type == LT_ENTRY_END
4743		&& needs & NEED_DEVTREE) {
4744		const char *ndtp = newDevTreePath;
4745		if (!strncmp
4746		(newDevTreePath, prefix, strlen(prefix)))
4747		ndtp += strlen(prefix);
4748		newLine = addLine(new, config->cfi, LT_DEVTREE,
4749		config->secondaryIndent,
4750		ndtp);
4751		needs &= ~NEED_DEVTREE;
4752		newLine =
4753		addLineTmpl(new, tmplLine, newLine, NULL,
4754		config->cfi);
4755		} else {
4756		/* pass through other lines from the template */
4757		newLine =
4758		addLineTmpl(new, tmplLine, newLine, NULL,
4759		config->cfi);
4760		}
4761		}
4762
4763		} else {
4764		/* don't have a template, so start the entry with the
4765		* appropriate starting line
4766		*/
4767		switch (config->cfi->entryStart) {
4768		case LT_KERNEL:
4769		case LT_KERNEL_EFI:
4770		case LT_KERNEL_16:
4771		if (new->multiboot && config->cfi->mbHyperFirst) {
4772		/* fall through to LT_HYPER */
4773		} else {
4774		newLine = addLine(new, config->cfi,
4775		preferredLineType(LT_KERNEL,
4776		config->
4777		cfi),
4778		config->primaryIndent,
4779		newKernelPath +
4780		strlen(prefix));
4781		needs &= ~NEED_KERNEL;
4782		break;
4783		}
4784
4785		case LT_HYPER:
4786		newLine = addLine(new, config->cfi, LT_HYPER,
4787		config->primaryIndent,
4788		newMBKernel + strlen(prefix));
4789		needs &= ~NEED_MB;
4790		break;
4791
4792		case LT_MENUENTRY:{
4793		char *nkt = malloc(strlen(newKernelTitle) + 3);
4794		strcpy(nkt, "'");
4795		strcat(nkt, newKernelTitle);
4796		strcat(nkt, "'");
4797		newLine =
4798		addLine(new, config->cfi, LT_MENUENTRY,
4799		config->primaryIndent, nkt);
4800		free(nkt);
4801		needs &= ~NEED_TITLE;
4802		needs |= NEED_END;
4803		break;
4804		}
4805		case LT_TITLE:
4806		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4807		char *templabel;
4808		int x = 0, y = 0;
4809
4810		templabel = strdup(newKernelTitle);
4811		while (templabel[x]) {
4812		if (templabel[x] == ' ') {
4813		y = x;
4814		while (templabel[y]) {
4815		templabel[y] =
4816		templabel[y + 1];
4817		y++;
4818		}
4819		}
4820		x++;
4821		}
4822		newLine = addLine(new, config->cfi, LT_TITLE,
4823		config->primaryIndent,
4824		templabel);
4825		free(templabel);
4826		} else {
4827		newLine = addLine(new, config->cfi, LT_TITLE,
4828		config->primaryIndent,
4829		newKernelTitle);
4830		}
4831		needs &= ~NEED_TITLE;
4832		break;
4833
4834		default:
4835		abort();
4836		}
4837		}
4838
4839		struct singleLine *endLine = NULL;
4840		endLine = getLineByType(LT_ENTRY_END, new->lines);
4841		if (endLine) {
4842		removeLine(new, endLine);
4843		needs |= NEED_END;
4844		}
4845
4846		/* add the remainder of the lines, i.e. those that either
4847		* weren't present in the template, or in the case of no template,
4848		* all the lines following the entryStart.
4849		*/
4850		if (needs & NEED_TITLE) {
4851		newLine = addLine(new, config->cfi, LT_TITLE,
4852		config->secondaryIndent, newKernelTitle);
4853		needs &= ~NEED_TITLE;
4854		}
4855		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4856		newLine = addLine(new, config->cfi, LT_HYPER,
4857		config->secondaryIndent,
4858		newMBKernel + strlen(prefix));
4859		needs &= ~NEED_MB;
4860		}
4861		if (needs & NEED_KERNEL) {
4862		newLine = addLine(new, config->cfi,
4863		(new->multiboot
4864		&& getKeywordByType(LT_MBMODULE,
4865		config->cfi))
4866		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4867		config->
4868		cfi),
4869		config->secondaryIndent,
4870		newKernelPath + strlen(prefix));
4871		needs &= ~NEED_KERNEL;
4872		}
4873		if (needs & NEED_MB) {
4874		newLine = addLine(new, config->cfi, LT_HYPER,
4875		config->secondaryIndent,
4876		newMBKernel + strlen(prefix));
4877		needs &= ~NEED_MB;
4878		}
4879		if (needs & NEED_INITRD) {
4880		char *initrdVal;
4881		initrdVal =
4882		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4883		extraInitrds, extraInitrdCount);
4884		newLine =
4885		addLine(new, config->cfi,
4886		(new->multiboot
4887		&& getKeywordByType(LT_MBMODULE, config->cfi))
4888		? LT_MBMODULE : preferredLineType(LT_INITRD,
4889		config->cfi),
4890		config->secondaryIndent, initrdVal);
4891		free(initrdVal);
4892		needs &= ~NEED_INITRD;
4893		}
4894		if (needs & NEED_DEVTREE) {
4895		newLine = addLine(new, config->cfi, LT_DEVTREE,
4896		config->secondaryIndent, newDevTreePath);
4897		needs &= ~NEED_DEVTREE;
4898		}
4899
4900		/* NEEDS_END must be last on bootloaders that need it... */
4901		if (needs & NEED_END) {
4902		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4903		config->secondaryIndent, NULL);
4904		needs &= ~NEED_END;
4905		}
4906
4907		if (needs) {
4908		printf(_("grubby: needs=%d, aborting\n"), needs);
4909		abort();
4910		}
4911
4912		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4913		newMBKernelArgs, NULL)) {
4914		config->isModified = 1;
4915		return 1;
4916		}
4917
4918	return 0;	return 0;
4919		}
4920
4921	} else if (displayDefaultIndex) {	int main(int argc, const char **argv)
4922	if (config->defaultImage == -1) return 0;	{
4923	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	poptContext optCon;
4924	cfi->defaultIsSaved)	const char *grubConfig = NULL;
4925	config->defaultImage = 0;	char *outputFile = NULL;
4926	printf("%i\n", config->defaultImage);	int arg = 0;
4927	return 0;	int flags = 0;
4928		int badImageOkay = 0;
4929	} else if (kernelInfo)	int configureGrub2 = 0;
4930	return displayInfo(config, kernelInfo, bootPrefix);	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4931		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4932	if (copyDefault) {	int configureExtLinux = 0;
4933	template = findTemplate(config, bootPrefix, NULL, 0, flags);	int bootloaderProbe = 0;
4934	if (!template) return 1;	int extraInitrdCount = 0;
4935	}	char *updateKernelPath = NULL;
4936		char *newKernelPath = NULL;
4937		char *removeKernelPath = NULL;
4938		char *newKernelArgs = NULL;
4939		char *newKernelInitrd = NULL;
4940		char *newKernelTitle = NULL;
4941		char *newDevTreePath = NULL;
4942		char *newMBKernel = NULL;
4943		char *newMBKernelArgs = NULL;
4944		int newIndex = 0;
4945		char *removeMBKernelArgs = NULL;
4946		char *removeMBKernel = NULL;
4947		char *bootPrefix = NULL;
4948		char *defaultKernel = NULL;
4949		char *removeArgs = NULL;
4950		char *kernelInfo = NULL;
4951		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4952		char *envPath = NULL;
4953		const char *chptr = NULL;
4954		struct configFileInfo *cfi = NULL;
4955		struct grubConfig *config;
4956		struct singleEntry *template = NULL;
4957		int copyDefault = 0, makeDefault = 0;
4958		int displayDefault = 0;
4959		int displayDefaultIndex = 0;
4960		int displayDefaultTitle = 0;
4961		int defaultIndex = -1;
4962		struct poptOption options[] = {
4963		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4964		_("add an entry for the specified kernel"), _("kernel-path")},
4965		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4966		_("add an entry for the specified multiboot kernel"), NULL},
4967		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4968		_("default arguments for the new kernel or new arguments for "
4969		"kernel being updated"), _("args")},
4970		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4971		_("default arguments for the new multiboot kernel or "
4972		"new arguments for multiboot kernel being updated"), NULL},
4973		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4974		_
4975		("don't sanity check images in boot entries (for testing only)"),
4976		NULL},
4977		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4978		_
4979		("filesystem which contains /boot directory (for testing only)"),
4980		_("bootfs")},
4981		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4982		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4983		_("check which bootloader is installed on boot sector")},
4984		#endif
4985		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4986		_("path to grub config file to update (\"-\" for stdin)"),
4987		_("path")},
4988		{"copy-default", 0, 0, &copyDefault, 0,
4989		_("use the default boot entry as a template for the new entry "
4990		"being added; if the default is not a linux image, or if "
4991		"the kernel referenced by the default image does not exist, "
4992		"the first linux entry whose kernel does exist is used as the "
4993		"template"), NULL},
4994		{"debug", 0, 0, &debug, 0,
4995		_("print debugging information for failures")},
4996		{"default-kernel", 0, 0, &displayDefault, 0,
4997		_("display the path of the default kernel")},
4998		{"default-index", 0, 0, &displayDefaultIndex, 0,
4999		_("display the index of the default kernel")},
5000		{"default-title", 0, 0, &displayDefaultTitle, 0,
5001		_("display the title of the default kernel")},
5002		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5003		_("device tree file for new stanza"), _("dtb-path")},
5004		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5005		_("device tree directory for new stanza"), _("dtb-path")},
5006		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
5007		_("configure elilo bootloader")},
5008		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
5009		_("force grub2 stanzas to use efi")},
5010		{"env", 0, POPT_ARG_STRING, &envPath, 0,
5011		_("path for environment data"),
5012		_("path")},
5013		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
5014		_("configure extlinux bootloader (from syslinux)")},
5015		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
5016		_("configure grub bootloader")},
5017		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
5018		_("configure grub2 bootloader")},
5019		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
5020		_("display boot information for specified kernel"),
5021		_("kernel-path")},
5022		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
5023		_("initrd image for the new kernel"), _("initrd-path")},
5024		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
5025		_
5026		("auxiliary initrd image for things other than the new kernel"),
5027		_("initrd-path")},
5028		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
5029		_("configure lilo bootloader")},
5030		{"make-default", 0, 0, &makeDefault, 0,
5031		_("make the newly added entry the default boot entry"), NULL},
5032		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
5033		_("path to output updated config file (\"-\" for stdout)"),
5034		_("path")},
5035		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
5036		_("remove kernel arguments"), NULL},
5037		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
5038		_("remove multiboot kernel arguments"), NULL},
5039		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
5040		_("remove all entries for the specified kernel"),
5041		_("kernel-path")},
5042		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
5043		_("remove all entries for the specified multiboot kernel"),
5044		NULL},
5045		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
5046		_("make the first entry referencing the specified kernel "
5047		"the default"), _("kernel-path")},
5048		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5049		_("make the given entry index the default entry"),
5050		_("entry-index")},
5051		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5052		_("use the given index when creating a new entry"),
5053		_("entry-index")},
5054		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5055		_("configure silo bootloader")},
5056		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5057		_("title to use for the new kernel entry"), _("entry-title")},
5058		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5059		_("updated information for the specified kernel"),
5060		_("kernel-path")},
5061		{"version", 'v', 0, NULL, 'v',
5062		_("print the version of this program and exit"), NULL},
5063		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5064		_("configure yaboot bootloader")},
5065		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5066		_("configure zipl bootloader")},
5067		POPT_AUTOHELP {0, 0, 0, 0, 0}
5068		};
5069
5070		useextlinuxmenu = 0;
5071
5072		int i = 0;
5073		for (int j = 1; j < argc; j++)
5074		i += strlen(argv[j]) + 1;
5075		saved_command_line = malloc(i);
5076		if (!saved_command_line) {
5077		fprintf(stderr, "grubby: %m\n");
5078		exit(1);
5079		}
5080		saved_command_line[0] = '\0';
5081		for (int j = 1; j < argc; j++) {
5082		strcat(saved_command_line, argv[j]);
5083		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5084		}
5085
5086		optCon = poptGetContext("grubby", argc, argv, options, 0);
5087		poptReadDefaultConfig(optCon, 1);
5088
5089		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5090		switch (arg) {
5091		case 'v':
5092		printf("grubby version %s\n", VERSION);
5093		exit(0);
5094		break;
5095		case 'i':
5096		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5097		extraInitrds[extraInitrdCount++] =
5098		strdup(poptGetOptArg(optCon));
5099		} else {
5100		fprintf(stderr,
5101		_
5102		("grubby: extra initrd maximum is %d\n"),
5103		extraInitrdCount);
5104		return 1;
5105		}
5106		break;
5107		}
5108		}
5109
5110		if (arg < -1) {
5111		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5112		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5113		poptStrerror(arg));
5114		return 1;
5115		}
5116
5117		if ((chptr = poptGetArg(optCon))) {
5118		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5119		return 1;
5120		}
5121
5122		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5123		configureYaboot + configureSilo + configureZipl +
5124		configureExtLinux) > 1) {
5125		fprintf(stderr,
5126		_("grubby: cannot specify multiple bootloaders\n"));
5127		return 1;
5128		} else if (bootloaderProbe && grubConfig) {
5129		fprintf(stderr,
5130		_
5131		("grubby: cannot specify config file with --bootloader-probe\n"));
5132		return 1;
5133		} else if (configureGrub2) {
5134		cfi = &grub2ConfigType;
5135		if (envPath)
5136		cfi->envFile = envPath;
5137		} else if (configureLilo) {
5138		cfi = &liloConfigType;
5139		} else if (configureGrub) {
5140		cfi = &grubConfigType;
5141		} else if (configureELilo) {
5142		cfi = &eliloConfigType;
5143		} else if (configureYaboot) {
5144		cfi = &yabootConfigType;
5145		} else if (configureSilo) {
5146		cfi = &siloConfigType;
5147		} else if (configureZipl) {
5148		cfi = &ziplConfigType;
5149		} else if (configureExtLinux) {
5150		cfi = &extlinuxConfigType;
5151		useextlinuxmenu = 1;
5152		}
5153
5154		if (!cfi) {
5155		if (grub2FindConfig(&grub2ConfigType)) {
5156		cfi = &grub2ConfigType;
5157		configureGrub2 = 1;
5158		if (envPath)
5159		cfi->envFile = envPath;
5160		} else {
5161		#ifdef __ia64__
5162		cfi = &eliloConfigType;
5163		configureLilo = 1;
5164		#elif defined(__powerpc__)
5165		cfi = &yabootConfigType;
5166		configureYaboot = 1;
5167		#elif defined(__sparc__)
5168		cfi = &siloConfigType;
5169		configureSilo = 1;
5170		#elif defined(__s390__) || defined(__s390x__)
5171		cfi = &ziplConfigType;
5172		configureZipl = 1;
5173		#else
5174		cfi = &grubConfigType;
5175		configureGrub = 1;
5176		#endif
5177		}
5178		}
5179
5180		if (!grubConfig) {
5181		if (cfi->findConfig)
5182		grubConfig = cfi->findConfig(cfi);
5183		if (!grubConfig)
5184		grubConfig = cfi->defaultConfig;
5185		}
5186
5187		if (bootloaderProbe && (displayDefault || kernelInfo ||
5188		newKernelPath || removeKernelPath || makeDefault
5189		|| defaultKernel || displayDefaultIndex
5190		|| displayDefaultTitle
5191		|| (defaultIndex >= 0))) {
5192		fprintf(stderr,
5193		_("grubby: --bootloader-probe may not be used with "
5194		"specified option"));
5195		return 1;
5196		}
5197
5198		if ((displayDefault || kernelInfo) && (newKernelPath ||
5199		removeKernelPath)) {
5200		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5201		"be used when adding or removing kernels\n"));
5202		return 1;
5203		}
5204
5205		if (newKernelPath && !newKernelTitle) {
5206		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5207		return 1;
5208		} else if (!newKernelPath && (copyDefault ||
5209		(newKernelInitrd && !updateKernelPath) ||
5210		makeDefault || extraInitrdCount > 0)) {
5211		fprintf(stderr, _("grubby: kernel path expected\n"));
5212		return 1;
5213		}
5214
5215		if (newKernelPath && updateKernelPath) {
5216		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5217		"not be used together"));
5218		return 1;
5219		}
5220
5221		if (makeDefault && defaultKernel) {
5222		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5223		"may not be used together\n"));
5224		return 1;
5225		} else if (defaultKernel && removeKernelPath &&
5226		!strcmp(defaultKernel, removeKernelPath)) {
5227		fprintf(stderr,
5228		_("grubby: cannot make removed kernel the default\n"));
5229		return 1;
5230		} else if (defaultKernel && newKernelPath &&
5231		!strcmp(defaultKernel, newKernelPath)) {
5232		makeDefault = 1;
5233		defaultKernel = NULL;
5234		} else if (defaultKernel && (defaultIndex >= 0)) {
5235		fprintf(stderr,
5236		_("grubby: --set-default and --set-default-index "
5237		"may not be used together\n"));
5238		return 1;
5239		}
5240
5241		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5242		fprintf(stderr,
5243		_("grubby: output file must be specified if stdin "
5244		"is used\n"));
5245		return 1;
5246		}
5247
5248		if (!removeKernelPath && !newKernelPath && !displayDefault
5249		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5250		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5251		&& !displayDefaultTitle && (defaultIndex == -1)) {
5252		fprintf(stderr, _("grubby: no action specified\n"));
5253		return 1;
5254		}
5255
5256		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5257
5258		if (cfi->needsBootPrefix) {
5259		if (!bootPrefix) {
5260		bootPrefix = findBootPrefix();
5261		if (!bootPrefix)
5262		return 1;
5263		} else {
5264		/* this shouldn't end with a / */
5265		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5266		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5267		}
5268		} else {
5269		bootPrefix = "";
5270		}
5271
5272		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5273		fprintf(stderr,
5274		_("grubby: %s doesn't allow multiple initrds\n"),
5275		cfi->defaultConfig);
5276		return 1;
5277		}
5278
5279		if (bootloaderProbe) {
5280		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5281		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5282
5283		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5284		if (grub2config) {
5285		gconfig = readConfig(grub2config, &grub2ConfigType);
5286		if (!gconfig)
5287		gr2c = 1;
5288		else
5289		gr2c = checkForGrub2(gconfig);
5290		}
5291
5292		const char *grubconfig = grubFindConfig(&grubConfigType);
5293		if (!access(grubconfig, F_OK)) {
5294		gconfig = readConfig(grubconfig, &grubConfigType);
5295		if (!gconfig)
5296		grc = 1;
5297		else
5298		grc = checkForGrub(gconfig);
5299		}
5300
5301		if (!access(liloConfigType.defaultConfig, F_OK)) {
5302		lconfig =
5303		readConfig(liloConfigType.defaultConfig,
5304		&liloConfigType);
5305		if (!lconfig)
5306		lrc = 1;
5307		else
5308		lrc = checkForLilo(lconfig);
5309		}
5310
5311		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5312		econfig = readConfig(eliloConfigType.defaultConfig,
5313		&eliloConfigType);
5314		if (!econfig)
5315		erc = 1;
5316		else
5317		erc = checkForElilo(econfig);
5318		}
5319
5320		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5321		lconfig =
5322		readConfig(extlinuxConfigType.defaultConfig,
5323		&extlinuxConfigType);
5324		if (!lconfig)
5325		extrc = 1;
5326		else
5327		extrc = checkForExtLinux(lconfig);
5328		}
5329
5330		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5331		yconfig = readConfig(yabootConfigType.defaultConfig,
5332		&yabootConfigType);
5333		if (!yconfig)
5334		yrc = 1;
5335		else
5336		yrc = checkForYaboot(yconfig);
5337		}
5338
5339	markRemovedImage(config, removeKernelPath, bootPrefix);	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5340	markRemovedImage(config, removeMBKernel, bootPrefix);	|| erc == 1)
5341	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5342	bootPrefix, flags, defaultIndex);
5343	setFallbackImage(config, newKernelPath != NULL);	if (lrc == 2)
5344	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	printf("lilo\n");
5345	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	if (gr2c == 2)
5346	if (updateKernelPath && newKernelInitrd) {	printf("grub2\n");
5347	if (newMBKernel) {	if (grc == 2)
5348	if (addMBInitrd(config, newMBKernel, updateKernelPath,	printf("grub\n");
5349		if (extrc == 2)
5350		printf("extlinux\n");
5351		if (yrc == 2)
5352		printf("yaboot\n");
5353		if (erc == 2)
5354		printf("elilo\n");
5355
5356		return 0;
5357		}
5358
5359		if (grubConfig == NULL) {
5360		printf("Could not find bootloader configuration file.\n");
5361		exit(1);
5362		}
5363
5364		config = readConfig(grubConfig, cfi);
5365		if (!config)
5366		return 1;
5367
5368		if (displayDefault) {
5369		struct singleLine *line;
5370		struct singleEntry *entry;
5371		char *rootspec;
5372
5373		if (config->defaultImage == NO_DEFAULT_ENTRY)
5374		return 0;
5375		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5376		cfi->defaultIsSaved)
5377		config->defaultImage = FIRST_ENTRY_INDEX;
5378		entry = findEntryByIndex(config, config->defaultImage);
5379		if (!entry)
5380		return 0;
5381		if (!suitableImage(entry, bootPrefix, 0, flags))
5382		return 0;
5383
5384		line =
5385		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5386		LT_KERNEL_16, entry->lines);
5387		if (!line)
5388		return 0;
5389
5390		rootspec = getRootSpecifier(line->elements[1].item);
5391		printf("%s%s\n", bootPrefix, line->elements[1].item +
5392		((rootspec != NULL) ? strlen(rootspec) : 0));
5393
5394		return 0;
5395
5396		} else if (displayDefaultTitle) {
5397		struct singleLine *line;
5398		struct singleEntry *entry;
5399
5400		if (config->defaultImage == NO_DEFAULT_ENTRY)
5401		return 0;
5402		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5403		cfi->defaultIsSaved)
5404		config->defaultImage = FIRST_ENTRY_INDEX;
5405		entry = findEntryByIndex(config, config->defaultImage);
5406		if (!entry)
5407		return 0;
5408
5409		if (!configureGrub2) {
5410		char *title;
5411		line = getLineByType(LT_TITLE, entry->lines);
5412		if (!line)
5413		return 0;
5414		title = extractTitle(config, line);
5415		if (!title)
5416		return 0;
5417		printf("%s\n", title);
5418		free(title);
5419		} else {
5420		char *title;
5421
5422		dbgPrintf
5423		("This is GRUB2, default title is embeded in menuentry\n");
5424		line = getLineByType(LT_MENUENTRY, entry->lines);
5425		if (!line)
5426		return 0;
5427		title = grub2ExtractTitle(line);
5428		if (title)
5429		printf("%s\n", title);
5430		}
5431		return 0;
5432
5433		} else if (displayDefaultIndex) {
5434		if (config->defaultImage == NO_DEFAULT_ENTRY)
5435		return 0;
5436		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5437		cfi->defaultIsSaved)
5438		config->defaultImage = FIRST_ENTRY_INDEX;
5439		printf("%i\n", config->defaultImage);
5440		return 0;
5441
5442		} else if (kernelInfo)
5443		return displayInfo(config, kernelInfo, bootPrefix);
5444
5445		if (copyDefault) {
5446		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5447		if (!template)
5448		return 1;
5449		}
5450
5451		markRemovedImage(config, removeKernelPath, bootPrefix);
5452		markRemovedImage(config, removeMBKernel, bootPrefix);
5453		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5454		makeDefault, bootPrefix, flags, defaultIndex,
5455		newIndex);
5456		setFallbackImage(config, newKernelPath != NULL);
5457		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5458		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5459		return 1;
5460		if (updateKernelPath && newKernelInitrd) {
5461		if (newMBKernel) {
5462		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5463	bootPrefix, newKernelInitrd,	bootPrefix, newKernelInitrd,
5464	newKernelTitle))	newKernelTitle))
5465	return 1;	return 1;
5466	} else {	} else {
5467	if (updateInitrd(config, updateKernelPath, bootPrefix,	if (updateInitrd(config, updateKernelPath, bootPrefix,
5468	newKernelInitrd, newKernelTitle))	newKernelInitrd, newKernelTitle))
5469	return 1;	return 1;
5470	}	}
5471	}	}
5472	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (addNewKernel(config, template, bootPrefix, newKernelPath,
5473	newKernelTitle, newKernelArgs, newKernelInitrd,	newKernelTitle, newKernelArgs, newKernelInitrd,
5474	(const char **)extraInitrds, extraInitrdCount,	(const char **)extraInitrds, extraInitrdCount,
5475	newMBKernel, newMBKernelArgs, newDevTreePath)) return 1;	newMBKernel, newMBKernelArgs, newDevTreePath,
5476		newIndex))
5477		return 1;
5478	if (numEntries(config) == 0) {
5479	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	if (numEntries(config) == 0) {
5480	"Not writing out new config.\n"));	fprintf(stderr,
5481	return 1;	_("grubby: doing this would leave no kernel entries. "
5482	}	"Not writing out new config.\n"));
5483		return 1;
5484		}
5485
5486	if (!outputFile)	if (!outputFile)
5487	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5488
5489	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5490	}	}

---

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Legend: Removed from v.2986   changed lines   Added in v.3137