Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 2262 by niro, Mon Oct 21 14:06:22 2013 UTC	revision 3136 by niro, Tue Jul 7 11:09:37 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 60  int debug = 0; /* Currently just for tem	Line 60  int debug = 0; /* Currently just for tem
60
61	int isEfi = 0;	int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69	char *saved_command_line = NULL;	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_UNKNOWN      = 1 << 22,	LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		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 119  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#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	enum lineType_e entryStart;	int defaultIsUnquoted;
170	enum lineType_e entryEnd;	enum lineType_e entryStart;
171	int needsBootPrefix;	enum lineType_e entryEnd;
172	int argsInQuotes;	int needsBootPrefix;
173	int maxTitleLength;	int argsInQuotes;
174	int titleBracketed;	int maxTitleLength;
175	int titlePosition;	int titleBracketed;
176	int mbHyperFirst;	int titlePosition;
177	int mbInitRdIsModule;	int mbHyperFirst;
178	int mbConcatArgs;	int mbInitRdIsModule;
179	int mbAllowExtraInitRds;	int mbConcatArgs;
180	char *envFile;	int mbAllowExtraInitRds;
181		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,
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	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "initrdefi",  LT_INITRD_EFI,  ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ "module",     LT_MBMODULE,    ' ' },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	{ "kernel",     LT_HYPER,       ' ' },	{"initrd16", LT_INITRD_16, ' ', ' '},
246	{ NULL, 0, 0 },	{"module", LT_MBMODULE, ' '},
247		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{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/grub2/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304	int rc = asprintf(&s, "grub2-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/grub2/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, "grub2-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);	{
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);	{
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	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{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,
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,
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,
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,
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,
671		.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 LT_KERNEL_EFI;	case LT_KERNEL:
793	case LT_INITRD:	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	return 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__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#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 singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title = NULL;	/* bracketed title... let's extract it */
897	if (line->type == LT_TITLE) {	char *title = NULL;
898	title = strdup(line->elements[0].item);	if (line->type == LT_TITLE) {
899	title++;	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	*(title + strlen(title) - 1) = '\0';	if (cfg->cfi->titleBracketed) {
901	} else if (line->type == LT_MENUENTRY)	tmp++;
902	title = strdup(line->elements[1].item);	title = strdup(tmp);
903	else	*(title + strlen(title) - 1) = '\0';
904	return NULL;	} else {
905	return title;	title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		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 {
920		size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	do {	if (i < 0) {
928	size += i;	fprintf(stderr, _("error reading input: %s\n"),
929	if ((size + 1024) > alloced) {	strerror(errno));
930	alloced += 4096;	free(buf);
931	buf = realloc(buf, alloced + 1);	return 1;
932	}	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
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		newLine->indent = strdup(line->indent);
960		newLine->next = NULL;
961		newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < newLine->numElements; i++) {
967	free(line->elements[i].item);	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	free(line->elements[i].indent);	newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (line->elements) free(line->elements);	return newLine;
	lineInit(line);
972	}	}
973
974	static int lineWrite(FILE * out, struct singleLine * line,	static void lineFree(struct singleLine *line)
975	struct configFileInfo * cfi) {	{
976	if (fprintf(out, "%s", line->indent) == -1) return -1;	if (line->indent)
977		free(line->indent);
	for (int i = 0; i < line->numElements; i++) {
	/* Need to handle this, because we strip the quotes from
	* menuentry when read it. */
	if (line->type == LT_MENUENTRY && i == 1) {
	if(!isquote(*line->elements[i].item))
	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		static int lineWrite(FILE * out, struct singleLine *line,
990		struct configFileInfo *cfi)
991		{
992		if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
996	if (i < line->numElements - 1)	/* Need to handle this, because we strip the quotes from
997	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	* 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 (line->type == LT_KERNELARGS && cfi->argsInQuotes)	continue;
1023	if (fputc('"', out) == EOF) return -1;	}
1024
1025	if (fprintf(out, "\n") == -1) return -1;	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	return 0;	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	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
1312	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	if (getNextLine(&head, line, cfi)) {
1313	defaultLine = line;	free(line);
1314		/* XXX memory leak of everything in cfg */
1315	} else if (iskernel(line->type)) {	return NULL;
1316	/* if by some freak chance this is multiboot and the "module"	}
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->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_TITLE && line->numElements > 1) {
	/* make the title 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	}	}
	}
	/* get extras */
	int count = 0;
	for (int i = 0; i < line->numElements; i++) {
	if (count >= 2) {
	strcat(extras, line->elements[i].item);
	strcat(extras, line->elements[i].indent);
	}
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	/* count ' or ", there should be two in menuentry line. */
	if (isquote(*line->elements[i].item))
	count++;
	len = strlen(line->elements[i].item);
	if (isquote(line->elements[i].item[len -1]))
	count++;
	/* ok, we get the final ' or ", others are extras. */
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(line->elements[last].item[len]))
	line->elements[last].item[len] = '\0';
	}
	}
	/* If 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;
1341
1342	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1343	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1344	entry->lines = line;	line->numElements);
1345	else	dbgPrintf("%s", line->indent);
1346	last->next = line;	for (int i = 0; i < line->numElements; i++)
1347	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1350	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1351	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1352	sawEntry = 0;	if (kwType && line->numElements == 3
1353	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (!cfg->theLines)	&& !is_special_grub2_variable(
1355	cfg->theLines = line;	line->elements[2].item)) {
1356	else	dbgPrintf("Line sets default config\n");
1357	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368	last = line;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	free(incoming);	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	if (defaultLine) {	cfg->fallbackImage =
1391	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1392	cfi->defaultSupportSaved &&	if (*end)
1393	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1394	cfg->cfi->defaultIsSaved = 1;
1395	cfg->defaultImage = DEFAULT_SAVED_GRUB2;	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	if (cfg->cfi->getEnv) {	|| (line->type == LT_TITLE
1397	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	&& line->numElements > 1)) {
1398	if (defTitle) {	/* make the title/default a single argument (undoing
1399	int index = 0;	* our parsing) */
1400	if (isnumber(defTitle)) {	len = 0;
1401	index = atoi(defTitle);	for (int i = 1; i < line->numElements; i++) {
1402	entry = findEntryByIndex(cfg, index);	len += strlen(line->elements[i].item);
1403	} else {	len += strlen(line->elements[i].indent);
	entry = findEntryByTitle(cfg, defTitle, &index);
1404	}	}
1405	if (entry)	buf = malloc(len + 1);
1406	cfg->defaultImage = index;	*buf = '\0';
	}
	}
	} 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(line))) break;
	}
	i++;
	entry = NULL;
	}
1407
1408	if (entry){	for (int i = 1; i < line->numElements; i++) {
1409	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1410	}else{	free(line->elements[i].item);
1411	cfg->defaultImage = -1;
1412	}	if ((i + 1) != line->numElements) {
1413	}	strcat(buf, line->elements[i].indent);
1414	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {	free(line->elements[i].indent);
1415	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	}
1416	if (defTitle) {	}
	int index = 0;
	if (isnumber(defTitle)) {
	index = atoi(defTitle);
	entry = findEntryByIndex(cfg, index);
	} else {
	entry = findEntryByTitle(cfg, defTitle, &index);
	}
	if (entry)
	cfg->defaultImage = index;
	}
	} else {
	cfg->defaultImage = 0;
	}
1417
1418	return cfg;	line->elements[1].indent =
1419	}	line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1438	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1439	struct singleEntry * entry;	*extras = '\0';
1440	struct singleLine * line;
1441	int i;	/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1446	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1447	else if (cfg->cfi->defaultIsSaved) {	&& quote_char == '\0') {
1448	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1449	if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {	quote_char = *line->elements[i].item;
1450	char *title;	title = line->elements[i].item + 1;
1451	entry = findEntryByIndex(cfg, cfg->defaultImage);	} else {
1452	line = getLineByType(LT_MENUENTRY, entry->lines);	title = line->elements[i].item;
1453	if (!line)	}
	line = getLineByType(LT_TITLE, entry->lines);
	if (line) {
	title = extractTitle(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;
1454
1455	entry = cfg->entries;	len = strlen(title);
1456	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	i = 0;	/* get extras */
1466	while (entry && i < image) {	int count = 0;
1467	entry = entry->next;	quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1476	i++;	(line->elements[i].item, "menuentry"))
1477	}	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	if (!entry) return;	len = strlen(line->elements[i].item);
1488
1489	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1494	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1495	line->elements[1].item);	line->elements[1].indent =
1496	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1497	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1498	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1499	extractTitle(line));	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	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1511	const char * prefix) {	memmove(line->elements[1].item,
1512	FILE * out;	line->elements[1].item + 1,
1513	struct singleLine * line;	strlen(line->elements[1].item +
1514	struct singleEntry * entry;	1) + 1);
1515	char * tmpOutName;
1516	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1517	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1518	int i;	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520	if (!strcmp(outName, "-")) {	}
1521	out = stdout;	}
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	char *dir = strdupa(outName);
	rc = chdir(dirname(dir));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key) &&
	!is_special_grub2_variable(line->elements[2].item)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
1581
1582	return 0;	free(incoming);
	}
1583
1584	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int i = 0;	if (defaultLine) {
1586	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1589	while (entry) {	"\"${saved_entry}\"", 16)) {
1590	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1591	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592	entry = entry->next;	if (cfg->cfi->getEnv) {
1593	}	char *defTitle =
1594	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1595	}	if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701		{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800		} else {
1801		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803		int len = 256;
1804		int rc;
1805
1806		/* most likely the symlink is relative, so change our
1807		directory to the dir of the symlink */
1808		char *dir = strdupa(outName);
1809		rc = chdir(dirname(dir));
1810		do {
1811		buf = alloca(len + 1);
1812		rc = readlink(basename(outName), buf, len);
1813		if (rc == len)
1814		len += 256;
1815		} while (rc == len);
1816
1817		if (rc < 0) {
1818		fprintf(stderr,
1819		_
1820		("grubby: error readlink link %s: %s\n"),
1821		outName, strerror(errno));
1822		return 1;
1823		}
1824
1825		outName = buf;
1826		outName[rc] = '\0';
1827		}
1828
1829		tmpOutName = alloca(strlen(outName) + 2);
1830		sprintf(tmpOutName, "%s-", outName);
1831		out = fopen(tmpOutName, "w");
1832		if (!out) {
1833		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834		tmpOutName, strerror(errno));
1835		return 1;
1836		}
1837
1838		if (!stat(outName, &sb)) {
1839		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840		fprintf(stderr,
1841		_
1842		("grubby: error setting perms on %s: %s\n"),
1843		tmpOutName, strerror(errno));
1844		fclose(out);
1845		unlink(tmpOutName);
1846		return 1;
1847		}
1848		}
1849		}
1850
1851		line = cfg->theLines;
1852		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1853		while (line) {
1854		if (line->type == LT_SET_VARIABLE && defaultKw &&
1855		line->numElements == 3 &&
1856		!strcmp(line->elements[1].item, defaultKw->key) &&
1857		!is_special_grub2_variable(line->elements[2].item)) {
1858		writeDefault(out, line->indent,
1859		line->elements[0].indent, cfg);
1860		needs &= ~MAIN_DEFAULT;
1861		} else if (line->type == LT_DEFAULT) {
1862		writeDefault(out, line->indent,
1863		line->elements[0].indent, cfg);
1864		needs &= ~MAIN_DEFAULT;
1865		} else if (line->type == LT_FALLBACK) {
1866		if (cfg->fallbackImage > -1)
1867		fprintf(out, "%s%s%s%d\n", line->indent,
1868		line->elements[0].item,
1869		line->elements[0].indent,
1870		cfg->fallbackImage);
1871		} else {
1872		if (lineWrite(out, line, cfg->cfi) == -1) {
1873		fprintf(stderr,
1874		_("grubby: error writing %s: %s\n"),
1875		tmpOutName, strerror(errno));
1876		fclose(out);
1877		unlink(tmpOutName);
1878		return 1;
1879		}
1880		}
1881
1882		line = line->next;
1883		}
1884
1885		if (needs & MAIN_DEFAULT) {
1886		writeDefault(out, cfg->primaryIndent, "=", cfg);
1887		needs &= ~MAIN_DEFAULT;
1888		}
1889
1890		i = 0;
1891		while ((entry = findEntryByIndex(cfg, i++))) {
1892		if (entry->skip)
1893		continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907		}
1908
1909		if (tmpOutName) {
1910		/* write userspace buffers */
1911		if (fflush(out))
1912		rc = 1;
1913
1914		/* purge the write-back cache with fsync() */
1915		if (fsync(fileno(out)))
1916		rc = 1;
1917
1918		if (fclose(out))
1919		rc = 1;
1920
1921		if (rc == 0 && rename(tmpOutName, outName)) {
1922		unlink(tmpOutName);
1923		rc = 1;
1924		}
1925
1926		/* fsync() the destination directory after rename */
1927		if (rc == 0) {
1928		int dirfd;
1929
1930		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1931		if (dirfd < 0)
1932		rc = 1;
1933		else if (fsync(dirfd))
1934		rc = 1;
1935
1936		if (dirfd >= 0)
1937		close(dirfd);
1938		}
1939
1940		if (rc == 1)
1941		fprintf(stderr,
1942		_("grubby: error flushing data: %m\n"));
1943		}
1944
1945		return rc;
1946		}
1947
1948		static int numEntries(struct grubConfig *cfg)
1949		{
1950		int i = 0;
1951		struct singleEntry *entry;
1952
1953		entry = cfg->entries;
1954		while (entry) {
1955		if (!entry->skip)
1956		i++;
1957		entry = entry->next;
1958		}
1959		return i;
1960		}
1961
1962	static char *findDiskForRoot()	static char *findDiskForRoot()
1963	{	{
1964	int fd;	int fd;
1965	char buf[65536];	char buf[65536];
1966	char *devname;	char *devname;
1967	char *chptr;	char *chptr;
1968	int rc;	int rc;
1969
1970		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971		fprintf(stderr, "grubby: failed to open %s: %s\n",
1972		_PATH_MOUNTED, strerror(errno));
1973		return NULL;
1974		}
1975
1976		rc = read(fd, buf, sizeof(buf) - 1);
1977		if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979		_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981		return NULL;
1982		}
1983		close(fd);
1984		buf[rc] = '\0';
1985		chptr = buf;
1986
1987	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1988
1989	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1990	if (rc <= 0) {	devname = chptr;
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	char *foundanswer = NULL;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/* remember the last / entry in mtab */
	foundanswer = devname;
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1991
1992	/* Return the last / entry found */	/*
1993	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1994	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1995	*chptr = '\0';	* on to the next line.
1996	return strdup(foundanswer);	*/
1997	}	if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004		/* Seek to the next space */
2005		chptr = strchr(chptr, ' ');
2006		if (!chptr) {
2007		fprintf(stderr, "grubby: error parsing %s: %s\n",
2008		_PATH_MOUNTED, strerror(errno));
2009		return NULL;
2010		}
2011
2012		/*
2013		* The second column of a mtab entry is the mount point, we
2014		* are looking for '/' obviously.
2015		*/
2016		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2017		/* remember the last / entry in mtab */
2018		foundanswer = devname;
2019		}
2020
2021		/* Next line */
2022		chptr = strchr(chptr, '\n');
2023		if (chptr)
2024		chptr++;
2025		}
2026
2027		/* Return the last / entry found */
2028		if (foundanswer) {
2029		chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032		}
2033
2034	return NULL;	return NULL;
2035	}	}
2036
2037	void printEntry(struct singleEntry * entry, FILE *f) {	void printEntry(struct singleEntry *entry, FILE * f)
2038	int i;	{
2039	struct singleLine * line;	int i;
2040		struct singleLine *line;
2041
2042	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2043	log_message(f, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2044	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2045	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2046	* menuentry when read it. */	* menuentry when read it. */
2047	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2048	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2049	log_message(f, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2050	else	line->elements[i].item);
2051	log_message(f, "%s", line->elements[i].item);	else
2052	log_message(f, "%s", line->elements[i].indent);	log_message(f, "%s",
2053		line->elements[i].item);
2054	continue;	log_message(f, "%s", line->elements[i].indent);
2055	}
2056		continue;
2057	log_message(f, "%s%s",	}
2058	line->elements[i].item, line->elements[i].indent);
2059		log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064	}	}
	log_message(f, "\n");
	}
2065	}	}
2066
2067	void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069	{	{
2070	static int once;	static int once;
2071	va_list argp, argq;	va_list argp, argq;
2072
2073	va_start(argp, fmt);	va_start(argp, fmt);
2074
2075	va_copy(argq, argp);	va_copy(argq, argp);
2076	if (!once) {	if (!once) {
2077	log_time(NULL);	log_time(NULL);
2078	log_message(NULL, "command line: %s\n", saved_command_line);	log_message(NULL, "command line: %s\n", saved_command_line);
2079	}	}
2080	log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed");	log_message(NULL, "DBG: Image entry %s: ",
2081	log_vmessage(NULL, fmt, argq);	okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
	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 1793  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, 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	i = 0;	return NULL;
2286	if (index) {
2287	while (i < *index) i++;	line =
2288	if (indexVars[i] == -1) return NULL;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2289		LT_KERNEL_16, entry->lines);
2290		if (!line)
2291		return NULL;
2292
2293		if (index)
2294		*index = indexVars[i];
2295		return entry;
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, 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;	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;
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, 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 2073  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)) {
2473		if (indexPtr)
2474		*indexPtr = cfg->defaultImage;
2475		return entry;
2476	}	}
	if (entry)
	cfg->defaultImage = index;
	}
	}
	} 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	}	}
	}
2542
2543	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2544	changes */	entry->skip = 1;
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
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;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, 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, 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	title = grub2ExtractTitle(line);	/* check to see if the default is stored in the environment */
2623	if (title)	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2624	printf("title=%s\n", title);	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2625	}	{
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	int isSuseSystem(void) {	if (isAddingBootEntry
2648	const char * path;	&& (newBootEntryIndex <= config->defaultImage)) {
2649	const static char default_path[] = "/etc/SuSE-release";	config->defaultImage++;
2650
2651	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	if (config->isModified) {
2652	path = default_path;	currentLookupIndex++;
2653		}
2654		}
2655		}
2656
2657	if (!access(path, R_OK))	/* sanity check - is this entry index valid? */
2658	return 1;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	return 0;
	}
2659
2660	int isSuseGrubConf(const char * path) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661	FILE * grubConf;	/* entry is to be skipped or is invalid */
2662	char * line = NULL;	if (isAddingBootEntry) {
2663	size_t len = 0, res = 0;	config->defaultImage = newBootEntryIndex;
2664		return;
2665	grubConf = fopen(path, "r");	}
2666	if (!grubConf) {	newDefault =
2667	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	findTemplate(config, prefix, &config->defaultImage, 1,
2668	return 0;	flags);
2669	}	if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671		}
2672
2673	while ((res = getline(&line, &len, grubConf)) != -1) {	return;
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
2674	}	}
	}
2675
2676	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	currentLookupIndex--;
	path);
2677
2678	fclose(grubConf);	/* decrement index by the total number of entries deleted */
	free(line);
	return 0;
	}
2679
2680	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (indexToVerify = currentLookupIndex;
2681	FILE * grubConf;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	char * line = NULL;
	size_t res = 0, len = 0;
	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';
	}
2682
2683	if (!strncmp(line, "setup", 5)) {	bootEntry = findEntryByIndex(config, indexToVerify);
	if (strstr(line, "--force-lba")) {
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2684
2685	free(line);	if (bootEntry && bootEntry->skip) {
2686	fclose(grubConf);	config->defaultImage--;
2687	return 0;	}
2688		}
2689	}	}
2690
2691	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2692	FILE * grubConf;	{
2693	char * line = NULL;	struct singleEntry *entry, *entry2;
2694	size_t res = 0, len = 0;	int j;
2695	char * lastParamPtr = NULL;
2696	char * secLastParamPtr = NULL;	if (config->fallbackImage == -1)
2697	char installDeviceNumber = '\0';	return;
2698	char * bounds = NULL;
2699		entry = findEntryByIndex(config, config->fallbackImage);
2700	if (!path) return 1;	if (!entry || entry->skip) {
2701	if (!devicePtr) return 1;	config->fallbackImage = -1;
2702		return;
	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';
2703	}	}
2704
2705	lastParamPtr = bounds = line + res;	if (hasNew)
2706		config->fallbackImage++;
2707
2708		/* count the number of entries erased before this one */
2709		for (j = 0; j < config->fallbackImage; j++) {
2710		entry2 = findEntryByIndex(config, j);
2711		if (entry2->skip)
2712		config->fallbackImage--;
2713		}
2714		}
2715
2716	/* Last parameter in grub may be an optional IMAGE_DEVICE */	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	while (!isspace(*lastParamPtr))	{
2718	lastParamPtr--;	struct singleLine *line;
2719	lastParamPtr++;	char *root = NULL;
2720		int i;
2721		int j;
2722
2723	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2724
2725	if (lastParamPtr + 3 > bounds) {	line =
2726	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727	fclose(grubConf);	entry->lines);
2728	free(line);	if (!line) {
2729	return 1;	printf("non linux entry\n");
2730		return;
2731	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2732
2733	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2735	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2736	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2737	while (!isspace(*secLastParamPtr))
2738	secLastParamPtr--;	if (line->numElements >= 3) {
2739	secLastParamPtr++;	printf("args=\"");
2740		i = 2;
2741	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2742	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2743	fclose(grubConf);	root = line->elements[i].item + 5;
2744	free(line);	} else {
2745	return 1;	printf("%s%s", line->elements[i].item,
2746	}	line->elements[i].indent);
2747	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2748	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2749	secLastParamPtr += 3;	i++;
2750	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2751	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
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)) {
	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	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
3012
3013	if (!entry->lines) {	free(line);
3014	/* first one on the list */	fclose(grubConf);
3015	entry->lines = newLine;	return 1;
	} 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	void removeLine(struct singleEntry * entry, struct singleLine * line) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
3042	struct singleLine * prev;	if (!strncmp(line, "#", 1))
3043	int i;	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	for (i = 0; i < line->numElements; i++) {	devicePtr = line;
3055	free(line->elements[i].item);	bounds = line + res;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
3056
3057	if (line == entry->lines) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058	entry->lines = line->next;	devicePtr++;
3059	} else {	dbgPrintf("device: %s\n", devicePtr);
3060	prev = entry->lines;
3061	while (prev->next != line) prev = prev->next;	if (!strncmp(devicePtr, device, strlen(device))) {
3062	prev->next = line->next;	devicePtr += strlen(device);
3063	}	while (isspace(*devicePtr)
3064		&& ((devicePtr + 1) <= bounds))
3065		devicePtr++;
3066
3067		*bootPtr = strdup(devicePtr);
3068		break;
3069		}
3070		}
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;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
3080
3081	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082	/* move the end-of-line forward */	dbgPrintf("error looking for grub installation device\n");
3083	line->elements[insertHere].indent =	else
3084	line->elements[insertHere-1].indent;	dbgPrintf("grubby installation device: %s\n", grubDevice);
	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	}	}
	}
	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3121
3122	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	return 0;
3123	&& !multibootArgs);	}
3124
3125	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126		{
3127		FILE *in;
3128		char buf[1024];
3129		char *chptr;
3130		char *start;
3131		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, 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 updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	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_KERNEL|LT_KERNEL_EFI, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD|LT_INITRD_EFI, 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);
	line = addLine(entry, cfg->cfi, preferredLineType(LT_INITRD, 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	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (line && line->numElements >= 1) {
3227	int fd;	printf("boot=%s\n", line->elements[1].item);
3228	unsigned char bootSect[512];	}
	int offset;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3229
3230	if (read(fd, bootSect, 512) != 512) {	line = getLineByType(LT_LBA, config->theLines);
3231	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (line)
3232	device, strerror(errno));	printf("lba\n");
3233	return 1;	}
	}
	close(fd);
3234
3235	/* first three bytes should match, a jmp short should be in there */	displayEntry(config, entry, prefix, i);
	if (memcmp(boot, bootSect, 3))
	return 0;
3236
3237	if (boot[1] == JMP_SHORT_OPCODE) {	i++;
3238	offset = boot[2] + 2;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	displayEntry(config, entry, prefix, i);
3240	offset = (boot[3] << 8) + boot[2] + 2;	i++;
3241	} 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;
	}
3242
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3243	return 0;	return 0;
	return 2;
3244	}	}
3245
3246	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3247	int fd;	struct singleLine *tmplLine,
3248	char buf[65536];	struct singleLine *prevLine,
3249	char * end;	const char *val, struct configFileInfo *cfi)
3250	char * chptr;	{
3251	char * chptr2;	struct singleLine *newLine = lineDup(tmplLine);
	int rc;
	/* it's on raid; we need to parse /proc/mdstat and check all of the
	*raw* devices listed in there */
3252
3253	if (!strncmp(mdDev, "/dev/", 5))	if (isEfi && cfi == &grub2ConfigType) {
3254	mdDev += 5;	enum lineType_e old = newLine->type;
3255		newLine->type = preferredLineType(newLine->type, cfi);
3256		if (old != newLine->type)
3257		newLine->elements[0].item =
3258		getKeyByType(newLine->type, cfi);
3259		}
3260
3261	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (val) {
3262	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	/* override the inherited value with our own.
3263	strerror(errno));	* This is a little weak because it only applies to elements[1]
3264	return 2;	*/
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	rc = read(fd, buf, sizeof(buf) - 1);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285	if (rc < 0 || rc == (sizeof(buf) - 1)) {	newLine->elements[0].item : "");
	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3286
3287	chptr = buf;	if (!entry->lines) {
3288	while (*chptr) {	/* first one on the list */
3289	end = strchr(chptr, '\n');	entry->lines = newLine;
3290	if (!end) break;	} else if (prevLine) {
3291	*end = '\0';	/* add after prevLine */
3292		newLine->next = prevLine->next;
3293		prevLine->next = newLine;
3294		}
3295
3296	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	return newLine;
3297	chptr[strlen(mdDev)] == ' ') {	}
3298
3299	/* found the device */	/* val may be NULL */
3300	while (*chptr && *chptr != ':') chptr++;	struct singleLine *addLine(struct singleEntry *entry,
3301	chptr++;	struct configFileInfo *cfi,
3302	while (*chptr && isspace(*chptr)) chptr++;	enum lineType_e type, char *defaultIndent,
3303		const char *val)
3304	/* skip the "active" bit */	{
3305	while (*chptr && !isspace(*chptr)) chptr++;	struct singleLine *line, *prev;
3306	while (*chptr && isspace(*chptr)) chptr++;	struct keywordTypes *kw;
3307		struct singleLine tmpl;
	/* 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++;
	}
3308
3309	/*  we're good to go */	/* NB: This function shouldn't allocate items on the heap, rather on
3310	return 2;	* the stack since it calls addLineTmpl which will make copies.
3311		*/
3312		if (type == LT_TITLE && cfi->titleBracketed) {
3313		/* we're doing a bracketed title (zipl) */
3314		tmpl.type = type;
3315		tmpl.numElements = 1;
3316		tmpl.elements = alloca(sizeof(*tmpl.elements));
3317		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 = end + 1;	/* The last non-empty line gives us the indention to us and the line
3371	}	* to insert after. Note that comments are considered empty lines,
3372		* which may not be ideal? If there are no lines or we are looking at
3373		* the first line, we use defaultIndent (the first line is normally
3374		* 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	fprintf(stderr,	return addLineTmpl(entry, &tmpl, prev, val, cfi);
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3400	}	}
3401
3402	int checkForLilo(struct grubConfig * config) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3403	int fd;	{
3404	unsigned char boot[512];	struct singleLine *prev;
3405	struct singleLine * line;	int i;
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3406
3407	if (line->numElements != 2) return 1;	for (i = 0; i < line->numElements; i++) {
3408		free(line->elements[i].item);
3409		free(line->elements[i].indent);
3410		}
3411		free(line->elements);
3412		free(line->indent);
3413
3414	fd = open("/boot/boot.b", O_RDONLY);	if (line == entry->lines) {
3415	if (fd < 0) {	entry->lines = line->next;
3416	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	} else {
3417	"/boot/boot.b", strerror(errno));	prev = entry->lines;
3418	return 1;	while (prev->next != line)
3419	}	prev = prev->next;
3420		prev->next = line->next;
3421		}
3422
3423	if (read(fd, boot, 512) != 512) {	free(line);
3424	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
3425	"/boot/boot.b", strerror(errno));
3426	return 1;	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3427	}	{
3428	close(fd);	struct singleLine newLine = {
3429		.indent = tmplLine->indent,
3430		.type = tmplLine->type,
3431		.next = tmplLine->next,
3432		};
3433		int firstQuotedItem = -1;
3434		int quoteLen = 0;
3435		int j;
3436		int element = 0;
3437		char *c;
3438
3439		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		firstQuotedItem = -1;
3476		quoteLen = 0;
3477		}
3478		}
3479		}
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		static void insertElement(struct singleLine *line,
3490		const char *item, int insertHere,
3491		struct configFileInfo *cfi)
3492		{
3493		struct keywordTypes *kw;
3494		char indent[2] = "";
3495
3496		/* sanity check */
3497		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	if (!strncmp("/dev/md", line->elements[1].item, 7))	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3524	return checkLiloOnRaid(line->elements[1].item, boot);	/* 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		line->numElements++;
3533
3534	return checkDeviceBootloader(line->elements[1].item, boot);	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 checkForGrub2(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3541	if (!access("/etc/grub.d/", R_OK))	{
3542	return 2;	int i;
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		/* now collapse the array, but don't bother to realloc smaller */
3563		for (i = removeHere; i < line->numElements - 1; i++)
3564		line->elements[i] = line->elements[i + 1];
3565
3566	return 1;	line->numElements--;
3567	}	}
3568
3569	int checkForGrub(struct grubConfig * config) {	static int argNameMatch(const char *one, const char *two)
3570	int fd;	{
3571	unsigned char bootSect[512];	char *first, *second;
3572	char * boot;	char *chptra, *chptrb;
3573	int onSuse = isSuseSystem();	int rc;
3574
3575		first = strcpy(alloca(strlen(one) + 1), one);
3576		second = strcpy(alloca(strlen(two) + 1), two);
3577
3578	if (onSuse) {	chptra = strchr(first, '=');
3579	if (parseSuseGrubConf(NULL, &boot))	if (chptra)
3580	return 0;	*chptra = '\0';
	} else {
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
	}
3581
3582	/* assume grub is not installed -- not an error condition */	chptrb = strchr(second, '=');
3583	if (!boot)	if (chptrb)
3584	return 0;	*chptrb = '\0';
3585
3586		rc = strcmp(first, second);
3587
3588		if (chptra)
3589		*chptra = '=';
3590		if (chptrb)
3591		*chptrb = '=';
3592
3593	fd = open("/boot/grub/stage1", O_RDONLY);	return rc;
3594	if (fd < 0)	}
3595	/* this doesn't exist if grub hasn't been installed */
3596		static int argHasValue(const char *arg)
3597		{
3598		char *chptr;
3599
3600		chptr = strchr(arg, '=');
3601		if (chptr)
3602		return 1;
3603	return 0;	return 0;
3604		}
3605
3606	if (read(fd, bootSect, 512) != 512) {	static int argValueMatch(const char *one, const char *two)
3607	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3608	"/boot/grub/stage1", strerror(errno));	char *first, *second;
3609	close(fd);	char *chptra, *chptrb;
	return 1;
	}
	close(fd);
3610
3611	/* The more elaborate checks do not work on SuSE. The checks done	first = strcpy(alloca(strlen(one) + 1), one);
3612	* seem to be reasonble (at least for now), so just return success	second = strcpy(alloca(strlen(two) + 1), two);
3613	*/
3614	if (onSuse)	chptra = strchr(first, '=');
3615	return 2;	if (chptra)
3616		chptra += 1;
3617
3618	return checkDeviceBootloader(boot, bootSect);	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	int checkForExtLinux(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3633	int fd;	const char *prefix, const char *addArgs,
3634	unsigned char bootSect[512];	const char *removeArgs, int multibootArgs)
3635	char * boot;	{
3636	char executable[] = "/boot/extlinux/extlinux";	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	printf("entered: checkForExtLinux()\n");	if (!image)
3648		return 0;
3649
3650	if (parseSysconfigGrub(NULL, &boot))	if (!addArgs) {
3651	return 0;	newArgs = malloc(sizeof(*newArgs));
3652		*newArgs = NULL;
3653		} else {
3654		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3655		fprintf(stderr,
3656		_("grubby: error separating arguments '%s'\n"),
3657		addArgs);
3658		return 1;
3659		}
3660		}
3661
3662		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		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3676		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3677
3678		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3679		&& !multibootArgs);
3680
3681		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3682
3683		if (multibootArgs && !entry->multiboot)
3684		continue;
3685
3686		/* Determine where to put the args.  If this config supports
3687		* 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		} 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		} else {
3708		line =
3709		getLineByType(LT_KERNEL | LT_MBMODULE |
3710		LT_KERNEL_EFI | LT_KERNEL_16,
3711		entry->lines);
3712		if (!line) {
3713		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3714		continue;
3715		}
3716		firstElement = 2;
3717		}
3718
3719		/* handle the elilo case which does:
3720		*   append="hypervisor args -- kernel args"
3721		*/
3722		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		usedElements = calloc(line->numElements, sizeof(*usedElements));
3760
3761		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3762
3763		doreplace = 1;
3764		for (i = firstElement; i < line->numElements; i++) {
3765		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3766		!strcmp(line->elements[i].item, "--")) {
3767		/* reached the end of hyper args, insert here */
3768		doreplace = 0;
3769		break;
3770		}
3771		if (usedElements[i])
3772		continue;
3773		if (!argNameMatch(line->elements[i].item, *arg)) {
3774		usedElements[i] = 1;
3775		break;
3776		}
3777		}
3778
3779		if (i < line->numElements && doreplace) {
3780		/* direct replacement */
3781		free(line->elements[i].item);
3782		line->elements[i].item = strdup(*arg);
3783
3784		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3785		/* root= replacement */
3786		rootLine = getLineByType(LT_ROOT, entry->lines);
3787		if (rootLine) {
3788		free(rootLine->elements[1].item);
3789		rootLine->elements[1].item =
3790		strdup(*arg + 5);
3791		} else {
3792		rootLine =
3793		addLine(entry, cfg->cfi, LT_ROOT,
3794		cfg->secondaryIndent,
3795		*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		free(usedElements);
3825
3826		for (arg = oldArgs; *arg; arg++) {
3827		for (i = firstElement; i < line->numElements; i++) {
3828		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3829		!strcmp(line->elements[i].item, "--"))
3830		/* reached the end of hyper args, stop here */
3831		break;
3832		if (!argNameMatch(line->elements[i].item, *arg)) {
3833		if (!argHasValue(*arg) ||
3834		!argValueMatch(line->elements[i].item, *arg)) {
3835		removeElement(line, i);
3836		break;
3837		}
3838		}
3839		}
3840		/* handle removing LT_ROOT line too */
3841		if (useRoot && !strncmp(*arg, "root=", 5)) {
3842		rootLine = getLineByType(LT_ROOT, entry->lines);
3843		if (rootLine)
3844		removeLine(entry, rootLine);
3845		}
3846		}
3847
3848		if (line->numElements == 1) {
3849		/* 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		}
3854
3855		free(newArgs);
3856		free(oldArgs);
3857
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3858	return 0;	return 0;
3859		}
3860
3861		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		int rc = 0;
3867
3868		if (!image)
3869		return rc;
3870
3871		/* update the main args first... */
3872		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		if (!image)
3894		return 0;
3895
3896		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3897		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3898		if (!kernelLine)
3899		continue;
3900
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 (prefix) {
3922		int prefixLen = strlen(prefix);
3923		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		break;
3942		}
3943
	fd = open(executable, O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3944	return 0;	return 0;
3945		}
3946
3947	if (read(fd, bootSect, 512) != 512) {	int updateInitrd(struct grubConfig *cfg, const char *image,
3948	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *prefix, const char *initrd, const char *title)
3949	executable, strerror(errno));	{
3950	return 1;	struct singleEntry *entry;
3951	}	struct singleLine *line, *kernelLine, *endLine = NULL;
3952	close(fd);	int index = 0;
3953
3954		if (!image)
3955		return 0;
3956
3957		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3958		kernelLine =
3959		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3960		entry->lines);
3961		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		line =
3985		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3986		entry->lines);
3987		if (line)
3988		removeLine(entry, line);
3989		if (prefix) {
3990		int prefixLen = strlen(prefix);
3991		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	return checkDeviceBootloader(boot, bootSect);	break;
4021		}
4022
4023		return 0;
4024	}	}
4025
4026	int checkForYaboot(struct grubConfig * config) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
4027	/*	{
4028	* This is a simplistic check that we consider good enough for own puporses	int fd;
4029	*	unsigned char bootSect[512];
4030	* If we were to properly check if yaboot is *installed* we'd need to:	int offset;
4031	* 1) get the system boot device (LT_BOOT)
4032	* 2) considering it's a raw filesystem, check if the yaboot binary matches	fd = open(device, O_RDONLY);
4033	*    the content on the boot device	if (fd < 0) {
4034	* 3) if not, copy the binary to a temporary file and run "addnote" on it	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4035	* 4) check again if binary and boot device contents match	device, strerror(errno));
4036	*/	return 1;
4037	if (!access("/etc/yaboot.conf", R_OK))	}
4038
4039		if (read(fd, bootSect, 512) != 512) {
4040		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4041		device, strerror(errno));
4042		return 1;
4043		}
4044		close(fd);
4045
4046		/* first three bytes should match, a jmp short should be in there */
4047		if (memcmp(boot, bootSect, 3))
4048		return 0;
4049
4050		if (boot[1] == JMP_SHORT_OPCODE) {
4051		offset = boot[2] + 2;
4052		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4053		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 {
4069		return 0;
4070		}
4071
4072		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4073		return 0;
4074
4075	return 2;	return 2;
4076		}
4077
4078	return 1;	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4079		{
4080		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		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4117		chptr[strlen(mdDev)] == ' ') {
4118
4119		/* found the device */
4120		while (*chptr && *chptr != ':')
4121		chptr++;
4122		chptr++;
4123		while (*chptr && isspace(*chptr))
4124		chptr++;
4125
4126		/* skip the "active" bit */
4127		while (*chptr && !isspace(*chptr))
4128		chptr++;
4129		while (*chptr && isspace(*chptr))
4130		chptr++;
4131
4132		/* skip the raid level */
4133		while (*chptr && !isspace(*chptr))
4134		chptr++;
4135		while (*chptr && isspace(*chptr))
4136		chptr++;
4137
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;
4183	}	}
4184
4185	int checkForElilo(struct grubConfig * config) {	int checkForLilo(struct grubConfig *config)
4186	if (!access("/etc/elilo.conf", R_OK))	{
4187	return 2;	int fd;
4188		unsigned char boot[512];
4189		struct singleLine *line;
4190
4191	return 1;	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		fd = open("/boot/boot.b", O_RDONLY);
4206		if (fd < 0) {
4207		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4208		"/boot/boot.b", strerror(errno));
4209		return 1;
4210		}
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	static char * getRootSpecifier(char * str) {	int checkForGrub2(struct grubConfig *config)
4226	char * idx, * rootspec = NULL;	{
4227		if (!access("/etc/grub.d/", R_OK))
4228		return 2;
4229
4230	if (*str == '(') {	return 1;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
4231	}	}
4232
4233	static char * getInitrdVal(struct grubConfig * config,	int checkForGrub(struct grubConfig *config)
4234	const char * prefix, struct singleLine *tmplLine,	{
4235	const char * newKernelInitrd,	int fd;
4236	const char ** extraInitrds, int extraInitrdCount)	unsigned char bootSect[512];
4237	{	char *boot;
4238	char *initrdVal, *end;	int onSuse = isSuseSystem();
4239	int i;
4240	size_t totalSize;	if (onSuse) {
4241	size_t prefixLen;	if (parseSuseGrubConf(NULL, &boot))
4242	char separatorChar;	return 0;
4243		} else {
4244	prefixLen = strlen(prefix);	if (parseSysconfigGrub(NULL, &boot))
4245	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	return 0;
4246		}
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4247
4248	initrdVal = end = malloc(totalSize);	/* assume grub is not installed -- not an error condition */
4249		if (!boot)
4250		return 0;
4251
4252	end = stpcpy (end, newKernelInitrd + prefixLen);	fd = open("/boot/grub/stage1", O_RDONLY);
4253		if (fd < 0)
4254		/* this doesn't exist if grub hasn't been installed */
4255		return 0;
4256
4257	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	if (read(fd, bootSect, 512) != 512) {
4258	for (i = 0; i < extraInitrdCount; i++) {	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4259	const char *extraInitrd;	"/boot/grub/stage1", strerror(errno));
4260	int j;	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	extraInitrd = extraInitrds[i] + prefixLen;	return checkDeviceBootloader(boot, bootSect);
4272	/* Don't add entries that are already there */	}
4273	if (tmplLine != NULL) {
4274	for (j = 2; j < tmplLine->numElements; j++)	int checkForExtLinux(struct grubConfig *config)
4275	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	{
4276	break;	int fd;
4277		unsigned char bootSect[512];
4278		char *boot;
4279		char executable[] = "/boot/extlinux/extlinux";
4280
4281	if (j != tmplLine->numElements)	printf("entered: checkForExtLinux()\n");
4282	continue;
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	*end++ = separatorChar;	return checkDeviceBootloader(boot, bootSect);
4303	end = stpcpy(end, extraInitrd);	}
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 initrdVal;	return 1;
4321	}	}
4322
4323	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int checkForElilo(struct grubConfig *config)
4324	const char * prefix,	{
4325	const char * newKernelPath, const char * newKernelTitle,	if (!access("/etc/elilo.conf", R_OK))
4326	const char * newKernelArgs, const char * newKernelInitrd,	return 2;
4327	const char ** extraInitrds, int extraInitrdCount,
4328	const char * newMBKernel, const char * newMBKernelArgs) {	return 1;
4329	struct singleEntry * new;	}
4330	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
4331	int needs;	static char *getRootSpecifier(char *str)
4332	char * chptr;	{
4333		char *idx, *rootspec = NULL;
	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;
4334
4335	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (*str == '(') {
4336	while (findEntryByPath(config, buf, NULL, NULL)) {	idx = rootspec = strdup(str);
4337	sprintf(numBuf, "%d", i++);	while (*idx && (*idx != ')') && (!isspace(*idx)))
4338	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	idx++;
4339		*(++idx) = '\0';
4340	}	}
4341		return rootspec;
4342		}
4343
4344	newKernelTitle = buf + 6;	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	new = malloc(sizeof(*new));	if (j != tmplLine->numElements)
4382	new->skip = 0;	continue;
4383	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;
	}
4384
4385	if (template) {	*end++ = separatorChar;
4386	for (masterLine = template->lines;	end = stpcpy(end, extraInitrd);
	masterLine && (tmplLine = lineDup(masterLine));
	lineFree(tmplLine), masterLine = masterLine->next)
	{
	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* 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 {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
4387	}	}
4388
4389	} else {	return initrdVal;
4390	/* don't have a template, so start the entry with the	}
4391	* appropriate starting line
4392	*/	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4393	switch (config->cfi->entryStart) {	const char *prefix,
4394	case LT_KERNEL:	const char *newKernelPath, const char *newKernelTitle,
4395	case LT_KERNEL_EFI:	const char *newKernelArgs, const char *newKernelInitrd,
4396	if (new->multiboot && config->cfi->mbHyperFirst) {	const char **extraInitrds, int extraInitrdCount,
4397	/* fall through to LT_HYPER */	const char *newMBKernel, const char *newMBKernelArgs,
4398	} else {	const char *newDevTreePath, int newIndex)
4399	newLine = addLine(new, config->cfi,	{
4400	preferredLineType(LT_KERNEL, config->cfi),	struct singleEntry *new, *entry, *prev = NULL;
4401	config->primaryIndent,	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4402	newKernelPath + strlen(prefix));	int needs;
4403	needs &= ~NEED_KERNEL;	char *indexs;
4404	break;	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	case LT_HYPER:	newKernelTitle = buf + 6;
4431	newLine = addLine(new, config->cfi, LT_HYPER,	}
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
4432
4433	case LT_MENUENTRY: {	new = malloc(sizeof(*new));
4434	char *nkt = malloc(strlen(newKernelTitle)+3);	new->skip = 0;
4435	strcpy(nkt, "'");	new->multiboot = 0;
4436	strcat(nkt, newKernelTitle);	new->lines = NULL;
4437	strcat(nkt, "'");	entry = config->entries;
4438	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (unsigned int i = 0; i < newIndex; i++) {
4439	config->primaryIndent, nkt);	if (!entry)
4440	free(nkt);	break;
4441	needs &= ~NEED_TITLE;	prev = entry;
4442	needs |= NEED_END;	entry = entry->next;
4443	break;	}
4444	}	new->next = entry;
4445	case LT_TITLE:
4446	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	if (prev)
4447	char * templabel;	prev->next = new;
4448	int x = 0, y = 0;	else
4449		config->entries = new;
4450	templabel = strdup(newKernelTitle);
4451	while( templabel[x]){	/* copy/update from the template */
4452	if( templabel[x] == ' ' ){	needs = NEED_KERNEL | NEED_TITLE;
4453	y = x;	if (newKernelInitrd)
4454	while( templabel[y] ){	needs |= NEED_INITRD;
4455	templabel[y] = templabel[y+1];	if (newMBKernel) {
4456	y++;	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	x++;
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	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
4761	}	}
	needs &= ~NEED_TITLE;
	break;
4762
4763	default:	} else {
4764	abort();	/* 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	/* add the remainder of the lines, i.e. those that either	struct singleLine *endLine = NULL;
4840	* weren't present in the template, or in the case of no template,	endLine = getLineByType(LT_ENTRY_END, new->lines);
4841	* all the lines following the entryStart.	if (endLine) {
4842	*/	removeLine(new, endLine);
4843	if (needs & NEED_TITLE) {	needs |= NEED_END;
4844	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_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
4845
4846	if (needs) {	/* add the remainder of the lines, i.e. those that either
4847	printf(_("grubby: needs=%d, aborting\n"), needs);	* weren't present in the template, or in the case of no template,
4848	abort();	* 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 (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (needs) {
4908	newMBKernelArgs, NULL)) return 1;	printf(_("grubby: needs=%d, aborting\n"), needs);
4909		abort();
4910		}
4911
4912	return 0;	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4913		newMBKernelArgs, NULL)) {
4914		config->isModified = 1;
4915		return 1;
4916		}
4917
4918		return 0;
4919	}	}
4920
4921	static void traceback(int signum)	int main(int argc, const char **argv)
4922	{	{
4923	void *array[40];	poptContext optCon;
4924	size_t size;	const char *grubConfig = NULL;
4925		char *outputFile = NULL;
4926	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4927	memset(array, '\0', sizeof (array));	int flags = 0;
4928	size = backtrace(array, 40);	int badImageOkay = 0;
4929		int configureGrub2 = 0;
4930	fprintf(stderr, "grubby received SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4931	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4932	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4933	exit(1);	int bootloaderProbe = 0;
4934	}	int extraInitrdCount = 0;
4935		char *updateKernelPath = NULL;
4936	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4937	poptContext optCon;	char *removeKernelPath = NULL;
4938	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4939	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4940	int arg = 0;	char *newKernelTitle = NULL;
4941	int flags = 0;	char *newDevTreePath = NULL;
4942	int badImageOkay = 0;	char *newMBKernel = NULL;
4943	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4944	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4945	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4946	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4947	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4948	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4949	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4950	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4951	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4952	char * newKernelArgs = NULL;	char *envPath = NULL;
4953	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4954	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4955	char * newKernelVersion = NULL;	struct grubConfig *config;
4956	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4957	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4958	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4959	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4960	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4961	char * defaultKernel = NULL;	int defaultIndex = -1;
4962	char * removeArgs = NULL;	struct poptOption options[] = {
4963	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4964	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4965	char * envPath = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4966	const char * chptr = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4967	struct configFileInfo * cfi = NULL;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4968	struct grubConfig * config;	_("default arguments for the new kernel or new arguments for "
4969	struct singleEntry * template = NULL;	"kernel being updated"), _("args")},
4970	int copyDefault = 0, makeDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4971	int displayDefault = 0;	_("default arguments for the new multiboot kernel or "
4972	int displayDefaultIndex = 0;	"new arguments for multiboot kernel being updated"), NULL},
4973	int displayDefaultTitle = 0;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4974	int defaultIndex = -1;	_
4975	struct poptOption options[] = {	("don't sanity check images in boot entries (for testing only)"),
4976	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	NULL},
4977	_("add an entry for the specified kernel"), _("kernel-path") },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4978	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	_
4979	_("add an entry for the specified multiboot kernel"), NULL },	("filesystem which contains /boot directory (for testing only)"),
4980	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	_("bootfs")},
	_("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") },
4981	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4982	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4983	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4984	#endif	#endif
4985	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4986	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4987	_("path") },	_("path")},
4988	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4989	_("use the default boot entry as a template for the new entry "	_("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 "	"being added; if the default is not a linux image, or if "
4991	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4992	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4993	"template"), NULL },	"template"), NULL},
4994	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4995	_("print debugging information for failures") },	_("print debugging information for failures")},
4996	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4997	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4998	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4999	_("display the index of the default kernel") },	_("display the index of the default kernel")},
5000	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
5001	_("display the title of the default kernel") },	_("display the title of the default kernel")},
5002	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5003	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
5004	{ "efi", 0, POPT_ARG_NONE, &isEfi, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5005	_("force grub2 stanzas to use efi") },	_("device tree directory for new stanza"), _("dtb-path")},
5006	{ "env", 0, POPT_ARG_STRING, &envPath, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
5007	_("path for environment data"),	_("configure elilo bootloader")},
5008	_("path") },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
5009	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	_("force grub2 stanzas to use efi")},
5010	_("configure extlinux bootloader (from syslinux)") },	{"env", 0, POPT_ARG_STRING, &envPath, 0,
5011	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	_("path for environment data"),
5012	_("configure grub bootloader") },	_("path")},
5013	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
5014	_("configure grub2 bootloader") },	_("configure extlinux bootloader (from syslinux)")},
5015	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
5016	_("display boot information for specified kernel"),	_("configure grub bootloader")},
5017	_("kernel-path") },	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
5018	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("configure grub2 bootloader")},
5019	_("initrd image for the new kernel"), _("initrd-path") },	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
5020	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	_("display boot information for specified kernel"),
5021	_("auxiliary initrd image for things other than the new kernel"), _("initrd-path") },	_("kernel-path")},
5022	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
5023	_("configure lilo bootloader") },	_("initrd image for the new kernel"), _("initrd-path")},
5024	{ "make-default", 0, 0, &makeDefault, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
5025	_("make the newly added entry the default boot entry"), NULL },	_
5026	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	("auxiliary initrd image for things other than the new kernel"),
5027	_("path to output updated config file (\"-\" for stdout)"),	_("initrd-path")},
5028	_("path") },	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
5029	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("configure lilo bootloader")},
5030	_("remove kernel arguments"), NULL },	{"make-default", 0, 0, &makeDefault, 0,
5031	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("make the newly added entry the default boot entry"), NULL},
5032	_("remove multiboot kernel arguments"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
5033	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("path to output updated config file (\"-\" for stdout)"),
5034	_("remove all entries for the specified kernel"),	_("path")},
5035	_("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
5036	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("remove kernel arguments"), NULL},
5037	_("remove all entries for the specified multiboot kernel"), NULL },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
5038	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("remove multiboot kernel arguments"), NULL},
5039	_("make the first entry referencing the specified kernel "	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
5040	"the default"), _("kernel-path") },	_("remove all entries for the specified kernel"),
5041	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("kernel-path")},
5042	_("make the given entry index the default entry"),	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
5043	_("entry-index") },	_("remove all entries for the specified multiboot kernel"),
5044	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	NULL},
5045	_("configure silo bootloader") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
5046	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("make the first entry referencing the specified kernel "
5047	_("title to use for the new kernel entry"), _("entry-title") },	"the default"), _("kernel-path")},
5048	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5049	_("updated information for the specified kernel"),	_("make the given entry index the default entry"),
5050	_("kernel-path") },	_("entry-index")},
5051	{ "version", 'v', 0, NULL, 'v',	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5052	_("print the version of this program and exit"), NULL },	_("use the given index when creating a new entry"),
5053	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("entry-index")},
5054	_("configure yaboot bootloader") },	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5055	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("configure silo bootloader")},
5056	_("configure zipl bootloader") },	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5057	POPT_AUTOHELP	_("title to use for the new kernel entry"), _("entry-title")},
5058	{ 0, 0, 0, 0, 0 }	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5059	};	_("updated information for the specified kernel"),
5060		_("kernel-path")},
5061	useextlinuxmenu=0;	{"version", 'v', 0, NULL, 'v',
5062		_("print the version of this program and exit"), NULL},
5063	signal(SIGSEGV, traceback);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5064		_("configure yaboot bootloader")},
5065	int i = 0;	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5066	for (int j = 1; j < argc; j++)	_("configure zipl bootloader")},
5067	i += strlen(argv[j]) + 1;	POPT_AUTOHELP {0, 0, 0, 0, 0}
5068	saved_command_line = malloc(i);	};
5069	if (!saved_command_line) {
5070	fprintf(stderr, "grubby: %m\n");	useextlinuxmenu = 0;
5071	exit(1);
5072	}	int i = 0;
5073	saved_command_line[0] = '\0';	for (int j = 1; j < argc; j++)
5074	for (int j = 1; j < argc; j++) {	i += strlen(argv[j]) + 1;
5075	strcat(saved_command_line, argv[j]);	saved_command_line = malloc(i);
5076	strncat(saved_command_line, j == argc -1 ? "" : " ", 1);	if (!saved_command_line) {
5077	}	fprintf(stderr, "grubby: %m\n");
5078		exit(1);
5079	optCon = poptGetContext("grubby", argc, argv, options, 0);	}
5080	poptReadDefaultConfig(optCon, 1);	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	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (arg < -1) {
5111	switch (arg) {	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5112	case 'v':	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5113	printf("grubby version %s\n", VERSION);	poptStrerror(arg));
	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);
5114	return 1;	return 1;
	}
	break;
5115	}	}
	}
	if (arg < -1) {
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
5116
5117	if ((chptr = poptGetArg(optCon))) {	if ((chptr = poptGetArg(optCon))) {
5118	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5119	return 1;	return 1;
5120	}	}
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	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;
	}
5121
5122	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5123	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5124	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5125	else	fprintf(stderr,
5126	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5127	cfi = &eliloConfigType;	return 1;
5128	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5129	cfi = &yabootConfigType;	fprintf(stderr,
5130	#elif __sparc__	_
5131	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5132	#elif __s390__	return 1;
5133	cfi = &ziplConfigType;	} else if (configureGrub2) {
5134	#elif __s390x__	cfi = &grub2ConfigType;
5135	cfi = &ziplConfigtype;	if (envPath)
5136	#else	cfi->envFile = envPath;
5137	cfi = &grubConfigType;	} else if (configureLilo) {
5138	#endif	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		if (envPath)
5158		cfi->envFile = envPath;
5159		} else
5160		#ifdef __ia64__
5161		cfi = &eliloConfigType;
5162		#elif __powerpc__
5163		cfi = &yabootConfigType;
5164		#elif __sparc__
5165		cfi = &siloConfigType;
5166		#elif __s390__
5167		cfi = &ziplConfigType;
5168		#elif __s390x__
5169		cfi = &ziplConfigtype;
5170		#else
5171		cfi = &grubConfigType;
5172		#endif
5173		}
5174
5175	if (!grubConfig) {	if (!grubConfig) {
5176	if (cfi->findConfig)	if (cfi->findConfig)
5177	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5178	if (!grubConfig)	if (!grubConfig)
5179	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5180	}	}
5181
5182	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5183	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5184	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
5185	(defaultIndex >= 0))) {	|| displayDefaultTitle
5186	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
5187		fprintf(stderr,
5188		_("grubby: --bootloader-probe may not be used with "
5189	"specified option"));	"specified option"));
5190	return 1;	return 1;
5191	}	}
5192
5193	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5194	removeKernelPath)) {	removeKernelPath)) {
5195	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5196	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5197	return 1;	return 1;
5198	}	}
5199
5200	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5201	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5202	return 1;	return 1;
5203	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5204	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5205	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5206	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5207	return 1;	return 1;
5208	}	}
5209
5210	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5211	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5212	"not be used together"));	"not be used together"));
5213	return 1;	return 1;
5214	}	}
5215
5216	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5217	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5218	"may not be used together\n"));	"may not be used together\n"));
5219	return 1;	return 1;
5220	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5221	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5222	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5223	return 1;	_("grubby: cannot make removed kernel the default\n"));
5224	} else if (defaultKernel && newKernelPath &&	return 1;
5225	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5226	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5227	defaultKernel = NULL;	makeDefault = 1;
5228	}	defaultKernel = NULL;
5229	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5230	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5231		_("grubby: --set-default and --set-default-index "
5232	"may not be used together\n"));	"may not be used together\n"));
5233	return 1;	return 1;
5234	}	}
5235
5236	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5237	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5238	"is used\n"));	_("grubby: output file must be specified if stdin "
5239	return 1;	"is used\n"));
5240	}	return 1;
5241		}
5242
5243	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5244	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5245	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5246	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5247	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5248	return 1;	return 1;
5249	}	}
5250
5251	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5252
5253	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5254	if (!bootPrefix) {	if (!bootPrefix) {
5255	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5256	if (!bootPrefix) return 1;	if (!bootPrefix)
5257		return 1;
5258		} else {
5259		/* this shouldn't end with a / */
5260		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5261		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5262		}
5263	} else {	} else {
5264	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5265	}	}
	} else {
	bootPrefix = "";
	}
5266
5267	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5268	extraInitrdCount > 0) {	fprintf(stderr,
5269	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5270	return 1;	cfi->defaultConfig);
5271	}	return 1;
5272		}
5273
5274	if (bootloaderProbe) {	if (bootloaderProbe) {
5275	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5276	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5277
5278	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5279	if (grub2config) {	if (grub2config) {
5280	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5281	if (!gconfig)	if (!gconfig)
5282	gr2c = 1;	gr2c = 1;
5283	else	else
5284	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5285	}	}
	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");
5286
5287	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5288	}	if (!access(grubconfig, F_OK)) {
5289		gconfig = readConfig(grubconfig, &grubConfigType);
5290		if (!gconfig)
5291		grc = 1;
5292		else
5293		grc = checkForGrub(gconfig);
5294		}
5295
5296	if (grubConfig == NULL) {	if (!access(liloConfigType.defaultConfig, F_OK)) {
5297	printf("Could not find bootloader configuration file.\n");	lconfig =
5298	exit(1);	readConfig(liloConfigType.defaultConfig,
5299	}	&liloConfigType);
5300		if (!lconfig)
5301		lrc = 1;
5302		else
5303		lrc = checkForLilo(lconfig);
5304		}
5305
5306	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5307	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5308		&eliloConfigType);
5309		if (!econfig)
5310		erc = 1;
5311		else
5312		erc = checkForElilo(econfig);
5313		}
5314
5315	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5316	struct singleLine * line;	lconfig =
5317	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5318	char * rootspec;	&extlinuxConfigType);
5319		if (!lconfig)
5320	if (config->defaultImage == -1) return 0;	extrc = 1;
5321	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	else
5322	cfi->defaultIsSaved)	extrc = checkForExtLinux(lconfig);
5323	config->defaultImage = 0;	}
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
5324
5325	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5326		yconfig = readConfig(yabootConfigType.defaultConfig,
5327		&yabootConfigType);
5328		if (!yconfig)
5329		yrc = 1;
5330		else
5331		yrc = checkForYaboot(yconfig);
5332		}
5333
5334	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5335	struct singleLine * line;	|| erc == 1)
5336	struct singleEntry * entry;	return 1;
5337
5338	if (config->defaultImage == -1) return 0;	if (lrc == 2)
5339	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	printf("lilo\n");
5340	cfi->defaultIsSaved)	if (gr2c == 2)
5341	config->defaultImage = 0;	printf("grub2\n");
5342	entry = findEntryByIndex(config, config->defaultImage);	if (grc == 2)
5343	if (!entry) return 0;	printf("grub\n");
5344		if (extrc == 2)
5345	if (!configureGrub2) {	printf("extlinux\n");
5346	line = getLineByType(LT_TITLE, entry->lines);	if (yrc == 2)
5347	if (!line) return 0;	printf("yaboot\n");
5348	printf("%s\n", line->elements[1].item);	if (erc == 2)
5349		printf("elilo\n");
5350
5351	} else {	return 0;
5352	char * title;	}
5353
5354	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	if (grubConfig == NULL) {
5355	line = getLineByType(LT_MENUENTRY, entry->lines);	printf("Could not find bootloader configuration file.\n");
5356	if (!line) return 0;	exit(1);
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5357	}	}
	return 0;
5358
5359	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5360	if (config->defaultImage == -1) return 0;	if (!config)
5361	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	return 1;
	cfi->defaultIsSaved)
	config->defaultImage = 0;
	printf("%i\n", config->defaultImage);
	return 0;
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5362
5363	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5364	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5365	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5366	bootPrefix, flags, defaultIndex);	char *rootspec;
5367	setFallbackImage(config, newKernelPath != NULL);
5368	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5369	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5370	if (updateKernelPath && newKernelInitrd) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5371	if (updateInitrd(config, updateKernelPath, bootPrefix,	cfi->defaultIsSaved)
5372	newKernelInitrd)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5373	}	entry = findEntryByIndex(config, config->defaultImage);
5374	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (!entry)
5375	newKernelTitle, newKernelArgs, newKernelInitrd,	return 0;
5376	(const char **)extraInitrds, extraInitrdCount,	if (!suitableImage(entry, bootPrefix, 0, flags))
5377	newMBKernel, newMBKernelArgs)) return 1;	return 0;
5378
5379		line =
5380	if (numEntries(config) == 0) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5381	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	LT_KERNEL_16, entry->lines);
5382	"Not writing out new config.\n"));	if (!line)
5383	return 1;	return 0;
5384	}
5385		rootspec = getRootSpecifier(line->elements[1].item);
5386		printf("%s%s\n", bootPrefix, line->elements[1].item +
5387		((rootspec != NULL) ? strlen(rootspec) : 0));
5388
5389		return 0;
5390
5391		} else if (displayDefaultTitle) {
5392		struct singleLine *line;
5393		struct singleEntry *entry;
5394
5395		if (config->defaultImage == NO_DEFAULT_ENTRY)
5396		return 0;
5397		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5398		cfi->defaultIsSaved)
5399		config->defaultImage = FIRST_ENTRY_INDEX;
5400		entry = findEntryByIndex(config, config->defaultImage);
5401		if (!entry)
5402		return 0;
5403
5404		if (!configureGrub2) {
5405		char *title;
5406		line = getLineByType(LT_TITLE, entry->lines);
5407		if (!line)
5408		return 0;
5409		title = extractTitle(config, line);
5410		if (!title)
5411		return 0;
5412		printf("%s\n", title);
5413		free(title);
5414		} else {
5415		char *title;
5416
5417		dbgPrintf
5418		("This is GRUB2, default title is embeded in menuentry\n");
5419		line = getLineByType(LT_MENUENTRY, entry->lines);
5420		if (!line)
5421		return 0;
5422		title = grub2ExtractTitle(line);
5423		if (title)
5424		printf("%s\n", title);
5425		}
5426		return 0;
5427
5428		} else if (displayDefaultIndex) {
5429		if (config->defaultImage == NO_DEFAULT_ENTRY)
5430		return 0;
5431		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5432		cfi->defaultIsSaved)
5433		config->defaultImage = FIRST_ENTRY_INDEX;
5434		printf("%i\n", config->defaultImage);
5435		return 0;
5436
5437		} else if (kernelInfo)
5438		return displayInfo(config, kernelInfo, bootPrefix);
5439
5440		if (copyDefault) {
5441		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5442		if (!template)
5443		return 1;
5444		}
5445
5446		markRemovedImage(config, removeKernelPath, bootPrefix);
5447		markRemovedImage(config, removeMBKernel, bootPrefix);
5448		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5449		makeDefault, bootPrefix, flags, defaultIndex,
5450		newIndex);
5451		setFallbackImage(config, newKernelPath != NULL);
5452		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5453		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5454		return 1;
5455		if (updateKernelPath && newKernelInitrd) {
5456		if (newMBKernel) {
5457		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5458		bootPrefix, newKernelInitrd,
5459		newKernelTitle))
5460		return 1;
5461		} else {
5462		if (updateInitrd(config, updateKernelPath, bootPrefix,
5463		newKernelInitrd, newKernelTitle))
5464		return 1;
5465		}
5466		}
5467		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5468		newKernelTitle, newKernelArgs, newKernelInitrd,
5469		(const char **)extraInitrds, extraInitrdCount,
5470		newMBKernel, newMBKernelArgs, newDevTreePath,
5471		newIndex))
5472		return 1;
5473
5474		if (numEntries(config) == 0) {
5475		fprintf(stderr,
5476		_("grubby: doing this would leave no kernel entries. "
5477		"Not writing out new config.\n"));
5478		return 1;
5479		}
5480
5481	if (!outputFile)	if (!outputFile)
5482	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5483
5484	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5485	}	}

---

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Legend: Removed from v.2262   changed lines   Added in v.3136