Diff of /tags/grubby-8_40_20170627/grubby.c

Parent Directory | Revision Log | Patch

	revision 2257 by niro, Mon Oct 21 14:01:48 2013 UTC	revision 3024 by niro, Tue Jun 27 14:41:50 2017 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	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
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;	return buf;
758		}
759
760		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 {	do {
920	size += i;	size += i;
921	if ((size + 1024) > alloced) {	if ((size + 1024) > alloced) {
922	alloced += 4096;	alloced += 4096;
923	buf = realloc(buf, alloced + 1);	buf = realloc(buf, alloced + 1);
924	}	}
925	} while ((i = read(fd, buf + size, 1024)) > 0);	} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	if (i < 0) {	if (i < 0) {
928	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));	fprintf(stderr, _("error reading input: %s\n"),
929	free(buf);	strerror(errno));
930	return 1;	free(buf);
931	}	return 1;
932		}
933
934	buf = realloc(buf, size + 2);	buf = realloc(buf, size + 2);
935	if (size == 0)	if (size == 0)
936	buf[size++] = '\n';	buf[size++] = '\n';
937	else	else if (buf[size - 1] != '\n')
938	if (buf[size - 1] != '\n')	buf[size++] = '\n';
939	buf[size++] = '\n';	buf[size] = '\0';
	buf[size] = '\0';
940
941	*bufPtr = buf;	*bufPtr = buf;
942
943	return 0;	return 0;
944	}	}
945
946	static void lineInit(struct singleLine * line) {	static void lineInit(struct singleLine *line)
947	line->indent = NULL;	{
948	line->elements = NULL;	line->type = LT_UNIDENTIFIED;
949	line->numElements = 0;	line->indent = NULL;
950	line->next = NULL;	line->elements = NULL;
951	}	line->numElements = 0;
952		line->next = NULL;
	struct singleLine * lineDup(struct singleLine * line) {
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
	return newLine;
953	}	}
954
955	static void lineFree(struct singleLine * line) {	struct singleLine *lineDup(struct singleLine *line)
956	if (line->indent) free(line->indent);	{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	free(line->elements[i].item);	newLine->next = NULL;
961	free(line->elements[i].indent);	newLine->type = line->type;
962	}	newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (line->elements) free(line->elements);	for (int i = 0; i < newLine->numElements; i++) {
967	lineInit(line);	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	}	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	static int lineWrite(FILE * out, struct singleLine * line,	return newLine;
972	struct configFileInfo * cfi) {	}
	if (fprintf(out, "%s", line->indent) == -1) return -1;
973
974	for (int i = 0; i < line->numElements; i++) {	static void lineFree(struct singleLine *line)
975	/* Need to handle this, because we strip the quotes from	{
976	* menuentry when read it. */	if (line->indent)
977	if (line->type == LT_MENUENTRY && i == 1) {	free(line->indent);
	if(!isquote(*line->elements[i].item))
	fprintf(out, "\'%s\'", line->elements[i].item);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
978
979	continue;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982	}	}
983
984	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	if (line->elements)
985	if (fputc('"', out) == EOF) return -1;	free(line->elements);
986		lineInit(line);
987		}
988
989		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);
1058
1059	lineFree(line);	end = strchr(start, '\n');
1060		*end = '\0';
1061		*bufPtr = end + 1;
1062
1063	end = strchr(start, '\n');	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	*end = '\0';
	*bufPtr = end + 1;
1064
1065	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	line->indent = strndup(start, chptr - start);
1066		start = chptr;
1067
1068	line->indent = strndup(start, chptr - start);	while (start < end) {
1069	start = chptr;	/* we know !isspace(*start) */
1070
1071	while (start < end) {	if (elementsAlloced == line->numElements) {
1072	/* we know !isspace(*start) */	elementsAlloced += 5;
1073		line->elements = realloc(line->elements,
1074		sizeof(*line->elements) *
1075		elementsAlloced);
1076		}
1077
1078	if (elementsAlloced == line->numElements) {	element = line->elements + line->numElements;
1079	elementsAlloced += 5;
1080	line->elements = realloc(line->elements,	chptr = start;
1081	sizeof(*line->elements) * elementsAlloced);	while (*chptr && !isspace(*chptr)) {
1082	}	if (first && *chptr == '=')
1083		break;
1084		chptr++;
1085		}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104	element = line->elements + line->numElements;	element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107	chptr = start;	line->numElements++;
1108	while (*chptr && !isspace(*chptr)) {	first = 0;
	if (first && *chptr == '=') break;
	chptr++;
1109	}	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1110
1111	/* lilo actually accepts the pathological case of append = " foo " */	if (!line->numElements)
1112	if (*start == '=')	line->type = LT_WHITESPACE;
1113	chptr = start + 1;	else {
1114	else	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	chptr = start;	if (line->type == LT_UNKNOWN) {
1116		/* zipl does [title] instead of something reasonable
1117	do {	* like all the other boot loaders.  kind of ugly */
1118	for (; *chptr && isspace(*chptr); chptr++);	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	if (*chptr == '=')	line->type = LT_TITLE;
1120	chptr = chptr + 1;	}
	} while (isspace(*chptr));
1121
1122	element->indent = strndup(start, chptr - start);	/* this is awkward, but we need to be able to handle
1123	start = chptr;	* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	line->numElements++;	line->type = LT_WHITESPACE;
1151	first = 0;	line->numElements = 0;
1152	}	}
1153		} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	if (!line->numElements)	kw = getKeywordByType(line->type, cfi);
	line->type = LT_WHITESPACE;
	else {
	line->type = getTypeByKeyword(line->elements[0].item, cfi);
	if (line->type == LT_UNKNOWN) {
	/* zipl does [title] instead of something reasonable like all
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1157
1158	fullLine = malloc(len + 1);	/* space isn't the only separator, we need to split
1159	strcpy(fullLine, line->indent);	* elements up more
1160	free(line->indent);	*/
1161	line->indent = fullLine;	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		for (int j = line->numElements; j > i;
1187		j--) {
1188		line->elements[j +
1189		numNewElements] =
1190		line->elements[j];
1191		}
1192		line->numElements += numNewElements;
1193
1194	for (int i = 0; i < line->numElements; i++) {	p = line->elements[i].item;
1195	strcat(fullLine, line->elements[i].item);	while (*p != '\0') {
1196	strcat(fullLine, line->elements[i].indent);
1197	free(line->elements[i].item);	while (*p != kw->separatorChar
1198	free(line->elements[i].indent);	&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249		}
1250
1251	line->type = LT_WHITESPACE;	return 0;
1252	line->numElements = 0;	}
1253	}
1254		static int isnumber(const char *s)
1255		{
1256		int i;
1257		for (i = 0; s[i] != '\0'; i++)
1258		if (s[i] < '0' || s[i] > '9')
1259		return 0;
1260		return i;
1261		}
1262
1263		static struct grubConfig *readConfig(const char *inName,
1264		struct configFileInfo *cfi)
1265		{
1266		int in;
1267		char *incoming = NULL, *head;
1268		int rc;
1269		int sawEntry = 0;
1270		int movedLine = 0;
1271		struct grubConfig *cfg;
1272		struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273		char *end;
1274		struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283	} else {	} else {
1284	struct keywordTypes *kw;	if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289		}
1290
1291	kw = getKeywordByType(line->type, cfi);	rc = readFile(in, &incoming);
1292		close(in);
1293		if (rc)
1294		return NULL;
1295
1296		head = incoming;
1297		cfg = malloc(sizeof(*cfg));
1298		cfg->primaryIndent = strdup("");
1299		cfg->secondaryIndent = strdup("\t");
1300		cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301		cfg->cfi = cfi;
1302		cfg->theLines = NULL;
1303		cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305		cfg->isModified = 0;
1306
1307		/* copy everything we have */
1308		while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	/* space isn't the only separator, we need to split	if (!sawEntry && line->numElements) {
1319	* elements up more	free(cfg->primaryIndent);
1320	*/	cfg->primaryIndent = strdup(line->indent);
1321	if (!isspace(kw->separatorChar)) {	} else if (line->numElements) {
1322	char indent[2] = "";	free(cfg->secondaryIndent);
1323	indent[0] = kw->separatorChar;	cfg->secondaryIndent = strdup(line->indent);
1324	for (int i = 1; i < line->numElements; i++) {	}
1325	char *p;
1326	int numNewElements;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327		sawEntry = 1;
1328	numNewElements = 0;	if (!entry) {
1329	p = line->elements[i].item;	cfg->entries = malloc(sizeof(*entry));
1330	while (*p != '\0') {	entry = cfg->entries;
1331	if (*p == kw->separatorChar)	} else {
1332	numNewElements++;	entry->next = malloc(sizeof(*entry));
1333	p++;	entry = entry->next;
	}
	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];
1334	}	}
	line->numElements += numNewElements;
1335
1336	p = line->elements[i].item;	entry->skip = 0;
1337	while (*p != '\0') {	entry->multiboot = 0;
1338		entry->lines = NULL;
1339		entry->next = NULL;
1340		}
1341
1342		if (line->type == LT_SET_VARIABLE) {
1343		dbgPrintf("found 'set' command (%d elements): ",
1344		line->numElements);
1345		dbgPrintf("%s", line->indent);
1346		for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349		dbgPrintf("\n");
1350		struct keywordTypes *kwType =
1351		getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353		&& !strcmp(line->elements[1].item, kwType->key)
1354		&& !is_special_grub2_variable(
1355		line->elements[2].item)) {
1356		dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358		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	while (*p != kw->separatorChar && *p != '\0') p++;	} else if (line->type == LT_MBMODULE) {
1369	if (*p == '\0') {	/* 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;	break;
1382	}	}
1383		}
1384		entry->multiboot = 1;
1385
1386	line->elements[i + 1].indent = line->elements[i].indent;	} else if (line->type == LT_HYPER) {
1387	line->elements[i].indent = strdup(indent);	entry->multiboot = 1;
1388	*p++ = '\0';
1389	i++;	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	line->elements[i].item = strdup(p);	cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404	}	}
1405	}	buf = malloc(len + 1);
1406	}	*buf = '\0';
	}
	}
1407
1408	return 0;	for (int i = 1; i < line->numElements; i++) {
1409	}	strcat(buf, line->elements[i].item);
1410		free(line->elements[i].item);
1411
1412		if ((i + 1) != line->numElements) {
1413		strcat(buf, line->elements[i].indent);
1414		free(line->elements[i].indent);
1415		}
1416		}
1417
1418	static struct grubConfig * readConfig(const char * inName,	line->elements[1].indent =
1419	struct configFileInfo * cfi) {	line->elements[line->numElements - 1].indent;
1420	int in;	line->elements[1].item = buf;
1421	char * incoming = NULL, * head;	line->numElements = 2;
1422	int rc;	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	int sawEntry = 0;	/* let --remove-kernel="TITLE=what" work */
1424	int movedLine = 0;	len = 0;
1425	struct grubConfig * cfg;	char *extras;
1426	struct singleLine * last = NULL, * line, * defaultLine = NULL;	char *title;
1427	char * end;	/* initially unseen value */
1428	struct singleEntry * entry = NULL;	char quote_char = '\0';
1429	int len;
1430	char * buf;	for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432	if (inName == NULL) {	len += strlen(line->elements[i].indent);
1433	printf("Could not find bootloader configuration\n");	}
1434	exit(1);	buf = malloc(len + 1);
1435	} else if (!strcmp(inName, "-")) {	*buf = '\0';
	in = 0;
	} else {
	if ((in = open(inName, O_RDONLY)) < 0) {
	fprintf(stderr, _("error opening %s for read: %s\n"),
	inName, strerror(errno));
	return NULL;
	}
	}
1436
1437	rc = readFile(in, &incoming);	/* allocate mem for extra flags. */
1438	close(in);	extras = malloc(len + 1);
1439	if (rc) return NULL;	*extras = '\0';
1440
1441	head = incoming;	/* get title. */
1442	cfg = malloc(sizeof(*cfg));	for (int i = 0; i < line->numElements; i++) {
1443	cfg->primaryIndent = strdup("");	if (!strcmp
1444	cfg->secondaryIndent = strdup("\t");	(line->elements[i].item, "menuentry"))
1445	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	continue;
1446	cfg->cfi = cfi;	if (isquote(*line->elements[i].item)
1447	cfg->theLines = NULL;	&& quote_char == '\0') {
1448	cfg->entries = NULL;	/* ensure we properly pair off quotes */
1449	cfg->fallbackImage = 0;	quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451	/* copy everything we have */	} else {
1452	while (*head) {	title = line->elements[i].item;
1453	line = malloc(sizeof(*line));	}
	lineInit(line);
1454
1455	if (getNextLine(&head, line, cfi)) {	len = strlen(title);
1456	free(line);	if (title[len - 1] == quote_char) {
1457	/* XXX memory leak of everything in cfg */	strncat(buf, title, len - 1);
1458	return NULL;	break;
1459	}	} else {
1460		strcat(buf, title);
1461	if (!sawEntry && line->numElements) {	strcat(buf, line->elements[i].indent);
1462	free(cfg->primaryIndent);	}
1463	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;
	}
1464
1465	entry->skip = 0;	/* get extras */
1466	entry->multiboot = 0;	int count = 0;
1467	entry->lines = NULL;	quote_char = '\0';
1468	entry->next = NULL;	for (int i = 0; i < line->numElements; i++) {
1469	}	if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471	if (line->type == LT_SET_VARIABLE) {	strcat(extras,
1472	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	line->elements[i].indent);
1473	dbgPrintf("%s", line->indent);	}
	for (int i = 0; i < line->numElements; i++)
	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key) &&
	!is_special_grub2_variable(line->elements[2].item)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (iskernel(line->type)) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->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';
1474
1475	for (int i = 1; i < line->numElements; i++) {	if (!strcmp
1476	strcat(buf, line->elements[i].item);	(line->elements[i].item, "menuentry"))
1477	free(line->elements[i].item);	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 ((i + 1) != line->numElements) {	len = strlen(line->elements[i].item);
	strcat(buf, line->elements[i].indent);
	free(line->elements[i].indent);
	}
	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	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;
1488
1489	len = strlen(title);	if (line->elements[i].item[len - 1] ==
1490	if (isquote(title[len-1])) {	quote_char)
1491	strncat(buf, title,len-1);	count++;
1492	break;
1493	} else {	/* ok, we get the final ' or ", others are extras. */
1494	strcat(buf, title);	}
1495	strcat(buf, line->elements[i].indent);	line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510		if (isquote(*line->elements[1].item))
1511		memmove(line->elements[1].item,
1512		line->elements[1].item + 1,
1513		strlen(line->elements[1].item +
1514		1) + 1);
1515
1516		last = line->numElements - 1;
1517		len = strlen(line->elements[last].item) - 1;
1518		if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520		}
1521	}	}
	}
1522
1523	/* get extras */	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	int count = 0;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	for (int i = 0; i < line->numElements; i++) {	defaultLine = line;
1526	if (count >= 2) {	}
1527	strcat(extras, line->elements[i].item);
1528	strcat(extras, line->elements[i].indent);	/* 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	if (!strcmp(line->elements[i].item, "menuentry"))	place in front of it anyway. */
1532	continue;	if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534	/* count ' or ", there should be two in menuentry line. */	struct singleLine **last_nonws = &cfg->theLines;
1535	if (isquote(*line->elements[i].item))	while (*l) {
1536	count++;	if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538	len = strlen(line->elements[i].item);	l = &((*l)->next);
1539		}
1540	if (isquote(line->elements[i].item[len -1]))	line->next = *last_nonws;
1541	count++;	*last_nonws = line;
1542		movedLine = 1;
1543	/* ok, we get the final ' or ", others are extras. */	continue; /* without setting 'last' */
1544	}	}
1545	line->elements[1].indent =
1546	line->elements[line->numElements - 2].indent;	/* If a second line of whitespace happens after a generic
1547	line->elements[1].item = buf;	* option which was moved, drop it. */
1548	line->elements[2].indent =	if (movedLine && line->type == LT_WHITESPACE
1549	line->elements[line->numElements - 2].indent;	&& last->type == LT_WHITESPACE) {
1550	line->elements[2].item = extras;	lineFree(line);
1551	line->numElements = 3;	free(line);
1552	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {	movedLine = 0;
1553	/* Strip off any " which may be present; they'll be put back	continue;
1554	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);
1555	movedLine = 0;	movedLine = 0;
	continue;
	}
	movedLine = 0;
1556
1557	if (sawEntry) {	if (sawEntry) {
1558	if (!entry->lines)	if (!entry->lines)
1559	entry->lines = line;	entry->lines = line;
1560	else	else
1561	last->next = line;	last->next = line;
1562	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564	/* we could have seen this outside of an entry... if so, we
1565	* ignore it like any other line we don't grok */	/* we could have seen this outside of an entry... if
1566	if (line->type == LT_ENTRY_END && sawEntry)	* so, we ignore it like any other line we don't grok
1567	sawEntry = 0;	*/
1568	} else {	if (line->type == LT_ENTRY_END && sawEntry)
1569	if (!cfg->theLines)	sawEntry = 0;
1570	cfg->theLines = line;	} else {
1571	else	if (!cfg->theLines)
1572	last->next = line;	cfg->theLines = line;
1573	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579		last = line;
1580	}	}
1581
1582	last = line;	free(incoming);
	}
1583
1584	free(incoming);	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	if (entry) {
1674	if (defaultLine) {	cfg->defaultImage = i;
1675	if (defaultLine->numElements > 2 &&	} else {
1676	cfi->defaultSupportSaved &&	cfg->defaultImage = NO_DEFAULT_ENTRY;
1677	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	}
1678	cfg->cfi->defaultIsSaved = 1;	}
1679	cfg->defaultImage = DEFAULT_SAVED_GRUB2;	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680	if (cfg->cfi->getEnv) {	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	if (defTitle) {
	if (defTitle) {
1682	int index = 0;	int index = 0;
1683	entry = findEntryByTitle(cfg, defTitle, &index);	if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689	if (entry)	if (entry)
1690	cfg->defaultImage = index;	cfg->defaultImage = index;
	}
1691	}	}
1692	} else if (cfi->defaultIsVariable) {	} else {
1693	char *value = defaultLine->elements[2].item;	cfg->defaultImage = FIRST_ENTRY_INDEX;
	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;
	}
	if (entry){
	cfg->defaultImage = i;
	}else{
	cfg->defaultImage = -1;
	}
	}
	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
	if (defTitle) {
	int index = 0;
	entry = findEntryByTitle(cfg, defTitle, &index);
	if (entry)
	cfg->defaultImage = index;
1694	}	}
	} else {
	cfg->defaultImage = 0;
	}
1695
1696	return cfg;	return cfg;
1697	}	}
1698
1699	static void writeDefault(FILE * out, char * indent,	static void writeDefault(FILE * out, char *indent,
1700	char * separator, struct grubConfig * cfg) {	char *separator, struct grubConfig *cfg)
1701	struct singleEntry * entry;	{
1702	struct singleLine * line;	struct singleEntry *entry;
1703	int i;	struct singleLine *line;
1704		int i;
1705	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	if (cfg->defaultImage == DEFAULT_SAVED)	return;
1708	fprintf(out, "%sdefault%ssaved\n", indent, separator);
1709	else if (cfg->cfi->defaultIsSaved) {	if (cfg->defaultImage == DEFAULT_SAVED)
1710	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711	if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {	else if (cfg->cfi->defaultIsSaved) {
1712	char *title;	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714	line = getLineByType(LT_MENUENTRY, entry->lines);	char *title;
1715	if (!line)	entry = findEntryByIndex(cfg, cfg->defaultImage);
1716	line = getLineByType(LT_TITLE, entry->lines);	line = getLineByType(LT_MENUENTRY, entry->lines);
1717	if (line) {	if (!line)
1718	title = extractTitle(line);	line = getLineByType(LT_TITLE, entry->lines);
1719	if (title)	if (line) {
1720	cfg->cfi->setEnv(cfg->cfi, "saved_entry", title);	title = extractTitle(cfg, line);
1721	}	if (title)
1722	}	cfg->cfi->setEnv(cfg->cfi,
1723	} else if (cfg->defaultImage > -1) {	"saved_entry", title);
1724	if (cfg->cfi->defaultIsIndex) {	}
1725	if (cfg->cfi->defaultIsVariable) {	}
1726	fprintf(out, "%sset default=\"%d\"\n", indent,	} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1727	cfg->defaultImage);	if (cfg->cfi->defaultIsIndex) {
1728	} else {	if (cfg->cfi->defaultIsVariable) {
1729	fprintf(out, "%sdefault%s%d\n", indent, separator,	fprintf(out, "%sset default=\"%d\"\n", indent,
1730	cfg->defaultImage);	cfg->defaultImage);
1731	}	} else {
1732	} else {	fprintf(out, "%sdefault%s%d\n", indent,
1733	int image = cfg->defaultImage;	separator, cfg->defaultImage);
1734		}
1735	entry = cfg->entries;	} else {
1736	while (entry && entry->skip) entry = entry->next;	int image = cfg->defaultImage;
1737
1738	i = 0;	entry = cfg->entries;
1739	while (entry && i < image) {	while (entry && entry->skip)
1740	entry = entry->next;	entry = entry->next;
1741
1742		i = 0;
1743		while (entry && i < image) {
1744		entry = entry->next;
1745
1746	while (entry && entry->skip) entry = entry->next;	while (entry && entry->skip)
1747	i++;	entry = entry->next;
1748	}	i++;
1749		}
1750
1751	if (!entry) return;	if (!entry)
1752		return;
1753
1754	line = getLineByType(LT_TITLE, entry->lines);	line = getLineByType(LT_TITLE, entry->lines);
1755
1756	if (line && line->numElements >= 2)	if (line && line->numElements >= 2)
1757	fprintf(out, "%sdefault%s%s\n", indent, separator,	fprintf(out, "%sdefault%s%s\n", indent,
1758	line->elements[1].item);	separator, line->elements[1].item);
1759	else if (line && (line->numElements == 1) &&	else if (line && (line->numElements == 1)
1760	cfg->cfi->titleBracketed) {	&& cfg->cfi->titleBracketed) {
1761	fprintf(out, "%sdefault%s%s\n", indent, separator,	char *title = extractTitle(cfg, line);
1762	extractTitle(line));	if (title) {
1763	}	fprintf(out, "%sdefault%s%s\n", indent,
1764		separator, title);
1765		free(title);
1766		}
1767		}
1768		}
1769	}	}
	}
1770	}	}
1771
1772	static int writeConfig(struct grubConfig * cfg, char * outName,	static int writeConfig(struct grubConfig *cfg, char *outName,
1773	const char * prefix) {	const char *prefix)
1774	FILE * out;	{
1775	struct singleLine * line;	FILE *out;
1776	struct singleEntry * entry;	struct singleLine *line;
1777	char * tmpOutName;	struct singleEntry *entry;
1778	int needs = MAIN_DEFAULT;	char *tmpOutName;
1779	struct stat sb;	int needs = MAIN_DEFAULT;
1780	int i;	struct stat sb;
1781		int i;
1782	if (!strcmp(outName, "-")) {
1783	out = stdout;	if (!strcmp(outName, "-")) {
1784	tmpOutName = NULL;	out = stdout;
1785	} else {	tmpOutName = NULL;
	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;
	}
	}
	}
	line = cfg->theLines;
	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
	while (line) {
	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);
1786	} else {	} else {
1787	if (lineWrite(out, line, cfg->cfi) == -1) {	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1788	fprintf(stderr, _("grubby: error writing %s: %s\n"),	char *buf;
1789	tmpOutName, strerror(errno));	int len = 256;
1790	fclose(out);	int rc;
1791	unlink(tmpOutName);
1792	return 1;	/* most likely the symlink is relative, so change our
1793	}	directory to the dir of the symlink */
1794	}	char *dir = strdupa(outName);
1795		rc = chdir(dirname(dir));
1796		do {
1797		buf = alloca(len + 1);
1798		rc = readlink(basename(outName), buf, len);
1799		if (rc == len)
1800		len += 256;
1801		} while (rc == len);
1802
1803		if (rc < 0) {
1804		fprintf(stderr,
1805		_
1806		("grubby: error readlink link %s: %s\n"),
1807		outName, strerror(errno));
1808		return 1;
1809		}
1810
1811	line = line->next;	outName = buf;
1812	}	outName[rc] = '\0';
1813		}
1814
1815	if (needs & MAIN_DEFAULT) {	tmpOutName = alloca(strlen(outName) + 2);
1816	writeDefault(out, cfg->primaryIndent, "=", cfg);	sprintf(tmpOutName, "%s-", outName);
1817	needs &= ~MAIN_DEFAULT;	out = fopen(tmpOutName, "w");
1818	}	if (!out) {
1819		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1820		tmpOutName, strerror(errno));
1821		return 1;
1822		}
1823
1824	i = 0;	if (!stat(outName, &sb)) {
1825	while ((entry = findEntryByIndex(cfg, i++))) {	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1826	if (entry->skip) continue;	fprintf(stderr,
1827		_
1828		("grubby: error setting perms on %s: %s\n"),
1829		tmpOutName, strerror(errno));
1830		fclose(out);
1831		unlink(tmpOutName);
1832		return 1;
1833		}
1834		}
1835		}
1836
1837	line = entry->lines;	line = cfg->theLines;
1838		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1839	while (line) {	while (line) {
1840	if (lineWrite(out, line, cfg->cfi) == -1) {	if (line->type == LT_SET_VARIABLE && defaultKw &&
1841	fprintf(stderr, _("grubby: error writing %s: %s\n"),	line->numElements == 3 &&
1842	tmpOutName, strerror(errno));	!strcmp(line->elements[1].item, defaultKw->key) &&
1843	fclose(out);	!is_special_grub2_variable(line->elements[2].item)) {
1844	unlink(tmpOutName);	writeDefault(out, line->indent,
1845	return 1;	line->elements[0].indent, cfg);
1846	}	needs &= ~MAIN_DEFAULT;
1847	line = line->next;	} else if (line->type == LT_DEFAULT) {
1848		writeDefault(out, line->indent,
1849		line->elements[0].indent, cfg);
1850		needs &= ~MAIN_DEFAULT;
1851		} else if (line->type == LT_FALLBACK) {
1852		if (cfg->fallbackImage > -1)
1853		fprintf(out, "%s%s%s%d\n", line->indent,
1854		line->elements[0].item,
1855		line->elements[0].indent,
1856		cfg->fallbackImage);
1857		} else {
1858		if (lineWrite(out, line, cfg->cfi) == -1) {
1859		fprintf(stderr,
1860		_("grubby: error writing %s: %s\n"),
1861		tmpOutName, strerror(errno));
1862		fclose(out);
1863		unlink(tmpOutName);
1864		return 1;
1865		}
1866		}
1867
1868		line = line->next;
1869	}	}
	}
1870
1871	if (tmpOutName) {	if (needs & MAIN_DEFAULT) {
1872	if (rename(tmpOutName, outName)) {	writeDefault(out, cfg->primaryIndent, "=", cfg);
1873	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	needs &= ~MAIN_DEFAULT;
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1874	}	}
	}
1875
1876	return 0;	i = 0;
1877		while ((entry = findEntryByIndex(cfg, i++))) {
1878		if (entry->skip)
1879		continue;
1880
1881		line = entry->lines;
1882		while (line) {
1883		if (lineWrite(out, line, cfg->cfi) == -1) {
1884		fprintf(stderr,
1885		_("grubby: error writing %s: %s\n"),
1886		tmpOutName, strerror(errno));
1887		fclose(out);
1888		unlink(tmpOutName);
1889		return 1;
1890		}
1891		line = line->next;
1892		}
1893		}
1894
1895		if (tmpOutName) {
1896		if (rename(tmpOutName, outName)) {
1897		fprintf(stderr,
1898		_("grubby: error moving %s to %s: %s\n"),
1899		tmpOutName, outName, strerror(errno));
1900		unlink(outName);
1901		return 1;
1902		}
1903		}
1904
1905		return 0;
1906	}	}
1907
1908	static int numEntries(struct grubConfig *cfg) {	static int numEntries(struct grubConfig *cfg)
1909	int i = 0;	{
1910	struct singleEntry * entry;	int i = 0;
1911		struct singleEntry *entry;
1912	entry = cfg->entries;
1913	while (entry) {	entry = cfg->entries;
1914	if (!entry->skip)	while (entry) {
1915	i++;	if (!entry->skip)
1916	entry = entry->next;	i++;
1917	}	entry = entry->next;
1918	return i;	}
1919		return i;
1920	}	}
1921
1922	static char *findDiskForRoot()	static char *findDiskForRoot()
1923	{	{
1924	int fd;	int fd;
1925	char buf[65536];	char buf[65536];
1926	char *devname;	char *devname;
1927	char *chptr;	char *chptr;
1928	int rc;	int rc;
1929
1930		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1931		fprintf(stderr, "grubby: failed to open %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		return NULL;
1934		}
1935
1936		rc = read(fd, buf, sizeof(buf) - 1);
1937		if (rc <= 0) {
1938		fprintf(stderr, "grubby: failed to read %s: %s\n",
1939		_PATH_MOUNTED, strerror(errno));
1940		close(fd);
1941		return NULL;
1942		}
1943		close(fd);
1944		buf[rc] = '\0';
1945		chptr = buf;
1946
1947	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;
	}
1948
1949	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1950	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++;
	}
1951
1952	/* Return the last / entry found */	/*
1953	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1954	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1955	*chptr = '\0';	* on to the next line.
1956	return strdup(foundanswer);	*/
1957	}	if (*devname != '/') {
1958		chptr = strchr(chptr, '\n');
1959		if (chptr)
1960		chptr++;
1961		continue;
1962		}
1963
1964		/* Seek to the next space */
1965		chptr = strchr(chptr, ' ');
1966		if (!chptr) {
1967		fprintf(stderr, "grubby: error parsing %s: %s\n",
1968		_PATH_MOUNTED, strerror(errno));
1969		return NULL;
1970		}
1971
1972		/*
1973		* The second column of a mtab entry is the mount point, we
1974		* are looking for '/' obviously.
1975		*/
1976		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1977		/* remember the last / entry in mtab */
1978		foundanswer = devname;
1979		}
1980
1981	return NULL;	/* Next line */
1982		chptr = strchr(chptr, '\n');
1983		if (chptr)
1984		chptr++;
1985		}
1986
1987		/* Return the last / entry found */
1988		if (foundanswer) {
1989		chptr = strchr(foundanswer, ' ');
1990		*chptr = '\0';
1991		return strdup(foundanswer);
1992		}
1993
1994		return NULL;
1995	}	}
1996
1997	void printEntry(struct singleEntry * entry, FILE *f) {	void printEntry(struct singleEntry *entry, FILE * f)
1998	int i;	{
1999	struct singleLine * line;	int i;
2000		struct singleLine *line;
2001
2002	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2003	log_message(f, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2004	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2005	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2006	* menuentry when read it. */	* menuentry when read it. */
2007	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2008	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2009	log_message(f, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2010	else	line->elements[i].item);
2011	log_message(f, "%s", line->elements[i].item);	else
2012	log_message(f, "%s", line->elements[i].indent);	log_message(f, "%s",
2013		line->elements[i].item);
2014	continue;	log_message(f, "%s", line->elements[i].indent);
2015	}
2016		continue;
2017	log_message(f, "%s%s",	}
2018	line->elements[i].item, line->elements[i].indent);
2019		log_message(f, "%s%s",
2020		line->elements[i].item,
2021		line->elements[i].indent);
2022		}
2023		log_message(f, "\n");
2024	}	}
	log_message(f, "\n");
	}
2025	}	}
2026
2027	void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2028		...)
2029	{	{
2030	static int once;	static int once;
2031	va_list argp, argq;	va_list argp, argq;
2032
2033	va_start(argp, fmt);	va_start(argp, fmt);
2034
2035	va_copy(argq, argp);	va_copy(argq, argp);
2036	if (!once) {	if (!once) {
2037	log_time(NULL);	log_time(NULL);
2038	log_message(NULL, "command line: %s\n", saved_command_line);	log_message(NULL, "command line: %s\n", saved_command_line);
2039	}	}
2040	log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed");	log_message(NULL, "DBG: Image entry %s: ",
2041	log_vmessage(NULL, fmt, argq);	okay ? "succeeded" : "failed");
2042		log_vmessage(NULL, fmt, argq);
	printEntry(entry, NULL);
	va_end(argq);
2043
2044	if (!debug) {	printEntry(entry, NULL);
2045	once = 1;	va_end(argq);
	va_end(argp);
	return;
	}
2046
2047	if (okay) {	if (!debug) {
2048	va_end(argp);	once = 1;
2049	return;	va_end(argp);
2050	}	return;
2051		}
2052
2053	if (!once)	if (okay) {
2054	log_message(stderr, "DBG: command line: %s\n", saved_command_line);	va_end(argp);
2055	once = 1;	return;
2056	fprintf(stderr, "DBG: Image entry failed: ");	}
2057	vfprintf(stderr, fmt, argp);
2058	printEntry(entry, stderr);	if (!once)
2059	va_end(argp);	log_message(stderr, "DBG: command line: %s\n",
2060		saved_command_line);
2061		once = 1;
2062		fprintf(stderr, "DBG: Image entry failed: ");
2063		vfprintf(stderr, fmt, argp);
2064		printEntry(entry, stderr);
2065		va_end(argp);
2066	}	}
2067
2068	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1772  static int endswith(const char *s, char	Line 2078  static int endswith(const char *s, char
2078	return s[slen] == c;	return s[slen] == c;
2079	}	}
2080
2081	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2082	int skipRemoved, int flags) {	int skipRemoved, int flags)
2083	struct singleLine * line;	{
2084	char * fullName;	struct singleLine *line;
2085	int i;	char *fullName;
2086	char * dev;	int i;
2087	char * rootspec;	char *dev;
2088	char * rootdev;	char *rootspec;
2089		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, 0, "marked to skip\n");
	return 0;
	}
2090
2091	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	if (skipRemoved && entry->skip) {
2092	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2093	notSuitablePrintf(entry, 0, "no line found\n");	return 0;
2094	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, 0, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2095
2096	if (flags & GRUBBY_BADIMAGE_OKAY) {	line =
2097	notSuitablePrintf(entry, 1, "\n");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2098	return 1;	entry->lines);
2099	}	if (!line) {
2100		notSuitablePrintf(entry, 0, "no line found\n");
2101		return 0;
2102		}
2103		if (line->numElements < 2) {
2104		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2105		line->numElements);
2106		return 0;
2107		}
2108
2109	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2110	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2111	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2112	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);
2113
2114	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2115	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2116		rootspec = getRootSpecifier(line->elements[1].item);
2117		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2118		int hasslash = endswith(bootPrefix, '/') ||
2119		beginswith(line->elements[1].item + rootspec_offset, '/');
2120		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2121		line->elements[1].item + rootspec_offset);
2122		if (access(fullName, R_OK)) {
2123		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2124		return 0;
2125		}
2126		for (i = 2; i < line->numElements; i++)
2127		if (!strncasecmp(line->elements[i].item, "root=", 5))
2128		break;
2129		if (i < line->numElements) {
2130		dev = line->elements[i].item + 5;
2131	} else {	} else {
2132	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2133	* 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);
2134
2135	/* failed to find one */	if (line && line->numElements >= 2) {
2136	if (!line) {	dev = line->elements[1].item;
2137	notSuitablePrintf(entry, 0, "no line found\n");	} else {
2138	return 0;	/* didn't succeed in finding a LT_ROOT, let's try
2139	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2140		* for the args, so check that too.
2141		*/
2142		line =
2143		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2144		entry->lines);
2145
2146		/* failed to find one */
2147		if (!line) {
2148		notSuitablePrintf(entry, 0, "no line found\n");
2149		return 0;
2150		}
2151
2152	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2153	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2154	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2155	dev = line->elements[i].item + 5;	break;
2156	else {	if (i < line->numElements)
2157	notSuitablePrintf(entry, 0, "no root= entry found\n");	dev = line->elements[i].item + 5;
2158	/* it failed too...  can't find root= */	else {
2159	return 0;	notSuitablePrintf(entry, 0,
2160	}	"no root= entry found\n");
2161		/* it failed too...  can't find root= */
2162		return 0;
2163		}
2164		}
2165	}	}
	}
2166
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2167	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2168		if (!getpathbyspec(dev)) {
2169		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2170		dev);
2171		return 0;
2172		} else
2173		dev = getpathbyspec(dev);
2174
2175	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2176	if (!rootdev) {	if (!rootdev) {
2177	notSuitablePrintf(entry, 0, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2178	return 0;	return 0;
2179	}	}
2180
2181	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2182	notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2183	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2184	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2185	return 0;	free(rootdev);
2186	}	return 0;
2187		}
2188
2189	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2190	notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2191	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2192	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2193	return 0;	free(rootdev);
2194	}	return 0;
2195		}
2196
2197	free(rootdev);	free(rootdev);
2198	notSuitablePrintf(entry, 1, "\n");	notSuitablePrintf(entry, 1, "\n");
2199
2200	return 1;	return 1;
2201	}	}
2202
2203	/* 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
2204	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2205	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2206	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2207	int * index) {	int *index)
2208	struct singleEntry * entry = NULL;	{
2209	struct singleLine * line;	struct singleEntry *entry = NULL;
2210	int i;	struct singleLine *line;
2211	char * chptr;	int i;
2212	char * rootspec = NULL;	char *chptr;
2213	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2214		enum lineType_e checkType = LT_KERNEL;
2215
2216		if (isdigit(*kernel)) {
2217		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2218
2219		i = 0;
2220		indexVars[i] = strtol(kernel, &chptr, 10);
2221		while (*chptr == ',') {
2222		i++;
2223		kernel = chptr + 1;
2224		indexVars[i] = strtol(kernel, &chptr, 10);
2225		}
2226
2227	if (isdigit(*kernel)) {	if (*chptr) {
2228	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	/* can't parse it, bail */
2229		return NULL;
2230		}
2231
2232	i = 0;	indexVars[i + 1] = -1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2233
2234	if (*chptr) {	i = 0;
2235	/* can't parse it, bail */	if (index) {
2236	return NULL;	while (i < *index) {
2237	}	i++;
2238		if (indexVars[i] == -1)
2239		return NULL;
2240		}
2241		}
2242
2243	indexVars[i + 1] = -1;	entry = findEntryByIndex(config, indexVars[i]);
2244		if (!entry)
2245	i = 0;	return NULL;
2246	if (index) {
2247	while (i < *index) i++;	line =
2248	if (indexVars[i] == -1) return NULL;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2249		LT_KERNEL_16, entry->lines);
2250		if (!line)
2251		return NULL;
2252
2253		if (index)
2254		*index = indexVars[i];
2255		return entry;
2256	}	}
2257
2258	entry = findEntryByIndex(config, indexVars[i]);	if (!strcmp(kernel, "DEFAULT")) {
2259	if (!entry) return NULL;	if (index && *index > config->defaultImage) {
2260		entry = NULL;
2261		} else {
2262		entry = findEntryByIndex(config, config->defaultImage);
2263		if (entry && entry->skip)
2264		entry = NULL;
2265		else if (index)
2266		*index = config->defaultImage;
2267		}
2268		} else if (!strcmp(kernel, "ALL")) {
2269		if (index)
2270		i = *index;
2271		else
2272		i = 0;
2273
2274	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2275	if (!line) return NULL;	if (!entry->skip)
2276		break;
2277		i++;
2278		}
2279
2280	if (index) *index = indexVars[i];	if (entry && index)
2281	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2282	} else {	} else {
2283	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2284	if (entry && entry->skip)	i = *index;
2285	entry = NULL;	else
2286	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++;
	}
2287
2288	if (entry && index)	if (!strncmp(kernel, "TITLE=", 6)) {
2289	*index = i;	prefix = "";
2290	} else {	checkType = LT_TITLE | LT_MENUENTRY;
2291	if (index)	kernel += 6;
2292	i = *index;	}
	else
	i = 0;
2293
2294	if (!strncmp(kernel, "TITLE=", 6)) {	for (entry = findEntryByIndex(config, i); entry;
2295	prefix = "";	entry = entry->next, i++) {
2296	checkType = LT_TITLE|LT_MENUENTRY;	if (entry->skip)
2297	kernel += 6;	continue;
2298	}
2299		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2300	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	checkType, kernel, entry);
2301	if (entry->skip) continue;
2302		/* check all the lines matching checkType */
2303	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	for (line = entry->lines; line; line = line->next) {
2304		enum lineType_e ct = checkType;
2305	/* check all the lines matching checkType */	if (entry->multiboot && checkType == LT_KERNEL)
2306	for (line = entry->lines; line; line = line->next) {	ct = LT_KERNEL | LT_KERNEL_EFI |
2307	enum lineType_e ct = checkType;	LT_MBMODULE | LT_HYPER |
2308	if (entry->multiboot && checkType == LT_KERNEL)	LT_KERNEL_16;
2309	ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER;	else if (checkType & LT_KERNEL)
2310	else if (checkType & LT_KERNEL)	ct = checkType | LT_KERNEL_EFI |
2311	ct = checkType | LT_KERNEL_EFI;	LT_KERNEL_16;
2312	line = getLineByType(ct, line);	line = getLineByType(ct, line);
2313	if (!line)	if (!line)
2314	break;  /* not found in this entry */	break; /* not found in this entry */
2315
2316		if (line && line->type != LT_MENUENTRY &&
2317		line->numElements >= 2) {
2318		rootspec =
2319		getRootSpecifier(line->elements[1].
2320		item);
2321		if (!strcmp
2322		(line->elements[1].item +
2323		((rootspec !=
2324		NULL) ? strlen(rootspec) : 0),
2325		kernel + strlen(prefix)))
2326		break;
2327		}
2328		if (line->type == LT_MENUENTRY &&
2329		!strcmp(line->elements[1].item, kernel))
2330		break;
2331		}
2332
2333	if (line && line->type != LT_MENUENTRY &&	/* make sure this entry has a kernel identifier; this skips
2334	line->numElements >= 2) {	* non-Linux boot entries (could find netbsd etc, though, which is
2335	rootspec = getRootSpecifier(line->elements[1].item);	* unfortunate)
2336	if (!strcmp(line->elements[1].item +	*/
2337	((rootspec != NULL) ? strlen(rootspec) : 0),	if (line
2338	kernel + strlen(prefix)))	&& getLineByType(LT_KERNEL | LT_HYPER |
2339	break;	LT_KERNEL_EFI | LT_KERNEL_16,
2340		entry->lines))
2341		break; /* found 'im! */
2342	}	}
	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! */
	}
2343
2344	if (index) *index = i;	if (index)
2345	}	*index = i;
2346		}
2347
2348	return entry;	return entry;
2349	}	}
2350
2351	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2352	int * index) {	int *index)
2353	struct singleEntry * entry;	{
2354	struct singleLine * line;	struct singleEntry *entry;
2355	int i;	struct singleLine *line;
2356	char * newtitle;	int i;
2357		char *newtitle;
2358	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2359	if (index && i < *index)	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2360	continue;	if (index && i < *index)
2361	line = getLineByType(LT_TITLE, entry->lines);	continue;
2362	if (!line)	line = getLineByType(LT_TITLE, entry->lines);
2363	line = getLineByType(LT_MENUENTRY, entry->lines);	if (!line)
2364	if (!line)	line = getLineByType(LT_MENUENTRY, entry->lines);
2365	continue;	if (!line)
2366	newtitle = grub2ExtractTitle(line);	continue;
2367	if (!newtitle)	newtitle = grub2ExtractTitle(line);
2368	continue;	if (!newtitle)
2369	if (!strcmp(title, newtitle))	continue;
2370	break;	if (!strcmp(title, newtitle))
2371	}	break;
2372		}
2373
2374	if (!entry)	if (!entry)
2375	return NULL;	return NULL;
2376
2377	if (index)	if (index)
2378	*index = i;	*index = i;
2379	return entry;	return entry;
2380	}	}
2381
2382	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2383	struct singleEntry * entry;	{
2384		struct singleEntry *entry;
2385	entry = cfg->entries;
2386	while (index && entry) {	entry = cfg->entries;
2387	entry = entry->next;	while (index && entry) {
2388	index--;	entry = entry->next;
2389	}	index--;
2390		}
2391
2392	return entry;	return entry;
2393	}	}
2394
2395	/* 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 2052  struct singleEntry * findEntryByIndex(st	Line 2397  struct singleEntry * findEntryByIndex(st
2397	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2398	* 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,
2399	* bail. */	* bail. */
2400	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2401	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2402	struct singleEntry * entry, * entry2;	{
2403	int index;	struct singleEntry *entry, *entry2;
2404		int index;
2405	if (cfg->cfi->defaultIsSaved) {
2406	if (cfg->cfi->getEnv) {	if (cfg->cfi->defaultIsSaved) {
2407	char *defTitle = cfg->cfi->getEnv(cfg->cfi, "saved_entry");	if (cfg->cfi->getEnv) {
2408	if (defTitle) {	char *defTitle =
2409	int index = 0;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2410	entry = findEntryByTitle(cfg, defTitle, &index);	if (defTitle) {
2411	}	int index = 0;
2412	}	if (isnumber(defTitle)) {
2413	} else if (cfg->defaultImage > -1) {	index = atoi(defTitle);
2414	entry = findEntryByIndex(cfg, cfg->defaultImage);	entry = findEntryByIndex(cfg, index);
2415	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	} else {
2416	if (indexPtr) *indexPtr = cfg->defaultImage;	entry =
2417	return entry;	findEntryByTitle(cfg, defTitle,
2418		&index);
2419		}
2420		if (entry
2421		&& suitableImage(entry, prefix, skipRemoved,
2422		flags)) {
2423		cfg->defaultImage = index;
2424		if (indexPtr)
2425		*indexPtr = index;
2426		return entry;
2427		}
2428		}
2429		}
2430		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2431		entry = findEntryByIndex(cfg, cfg->defaultImage);
2432		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2433		if (indexPtr)
2434		*indexPtr = cfg->defaultImage;
2435		return entry;
2436		}
2437	}	}
	}
2438
2439	index = 0;	index = 0;
2440	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2441	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2442	int j;	int j, unmodifiedIndex;
2443	for (j = 0; j < index; j++) {
2444	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2445	if (entry2->skip) index--;
2446	}	for (j = 0; j < unmodifiedIndex; j++) {
2447	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2448		if (entry2->skip)
2449		index--;
2450		}
2451		if (indexPtr)
2452		*indexPtr = index;
2453
2454	return entry;	return entry;
2455	}	}
2456
2457	index++;	index++;
2458	}	}
2459
2460	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2461		_("grubby fatal error: unable to find a suitable template\n"));
2462
2463	return NULL;	return NULL;
2464	}	}
2465
2466	char * findBootPrefix(void) {	char *findBootPrefix(void)
2467	struct stat sb, sb2;	{
2468		struct stat sb, sb2;
2469
2470	stat("/", &sb);	stat("/", &sb);
2471	#ifdef __ia64__	#ifdef __ia64__
2472	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2473	#else	#else
2474	stat("/boot", &sb2);	stat("/boot", &sb2);
2475	#endif	#endif
2476
2477	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2478	return strdup("");	return strdup("");
2479
2480	#ifdef __ia64__	#ifdef __ia64__
2481	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2482	#else	#else
2483	return strdup("/boot");	return strdup("/boot");
2484	#endif	#endif
2485	}	}
2486
2487	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2488	const char * prefix) {	const char *prefix)
2489	struct singleEntry * entry;	{
2490		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;
	}
2491
2492	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2493	entry->skip = 1;	return;
	}
2494
2495	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2496	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2497	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2498	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2499	int i, j;	entry->skip = 1;
2500		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;
2501	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2502
2503	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2504	/* we can preserve the default */	entry->skip = 1;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2505	}	}
2506
2507	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2508	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2509	int j;	const char *prefix, int flags,
2510		int newDefaultBootEntryIndex, int newBootEntryIndex)
2511	if (config->fallbackImage == -1) return;	{
2512		struct singleEntry *bootEntry, *newDefault;
2513	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2514
2515	if (hasNew)	/* handle the two cases where the user explictly picks the default
2516	config->fallbackImage++;	* boot entry index as it would exist post-modification */
	/* 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--;
	}
	}
2517
2518	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* Case 1: user chose to make the latest boot entry the default */
2519	struct singleLine * line;	if (newBootEntryIsDefault) {
2520	char * root = NULL;	config->defaultImage = newBootEntryIndex;
2521	int i;	return;
2522		}
2523	printf("index=%d\n", index);
2524		/* Case 2: user picked an arbitrary index as the default boot entry */
2525	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2526	if (!line) {	&& config->cfi->defaultIsIndex) {
2527	printf("non linux entry\n");	indexToVerify = newDefaultBootEntryIndex;
2528	return;
2529	}	/* user chose to make latest boot entry the default */
2530		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2531		config->defaultImage = newBootEntryIndex;
2532		return;
2533		}
2534
2535	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* the user picks the default index based on the
2536	printf("kernel=%s\n", line->elements[1].item);	* order of the bootloader configuration after
2537	else	* modification; ensure we are checking for the
2538	printf("kernel=%s%s\n", prefix, line->elements[1].item);	* existence of the correct entry */
2539		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2540	if (line->numElements >= 3) {	if (!config->isModified)
2541	printf("args=\"");	indexToVerify--;
2542	i = 2;	}
2543	while (i < line->numElements) {
2544	if (!strncmp(line->elements[i].item, "root=", 5)) {	/* verify the user selected index will exist */
2545	root = line->elements[i].item + 5;	if (findEntryByIndex(config, indexToVerify)) {
2546	} else {	config->defaultImage = newDefaultBootEntryIndex;
2547	printf("%s%s", line->elements[i].item,	} else {
2548	line->elements[i].indent);	config->defaultImage = NO_DEFAULT_ENTRY;
2549	}	}
2550
2551	i++;	return;
2552	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2553
2554	printf("args=\"");	/* handle cases where the index value may shift */
	i = 1;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2555
2556	printf("%s%s", s, line->elements[i].indent);	/* check validity of existing default or first-entry-found
2557		selection */
2558		if (defaultKernelPath) {
2559		/* user requested first-entry-found */
2560		if (!findEntryByPath(config, defaultKernelPath,
2561		prefix, &firstKernelEntryIndex)) {
2562		/* don't change default if can't find match */
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564		return;
2565	}	}
2566
2567	i++;	config->defaultImage = firstKernelEntryIndex;
	}
2568
2569	s = line->elements[i - 1].indent;	/* this is where we start looking for decrement later */
2570	printf("\"\n");	currentLookupIndex = config->defaultImage;
	}
	}
2571
2572	if (!root) {	if (isAddingBootEntry && !config->isModified &&
2573	line = getLineByType(LT_ROOT, entry->lines);	(newBootEntryIndex < config->defaultImage)) {
2574	if (line && line->numElements >= 2)	/* increment because new entry added before default */
2575	root=line->elements[1].item;	config->defaultImage++;
2576	}	}
2577		} else {
2578		/* use pre-existing default entry */
2579		currentLookupIndex = config->defaultImage;
2580
2581	if (root) {	if (isAddingBootEntry
2582	char * s = alloca(strlen(root) + 1);	&& (newBootEntryIndex <= config->defaultImage)) {
2583		config->defaultImage++;
	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);
	}
2584
2585	line = getLineByType(LT_INITRD|LT_INITRD_EFI, entry->lines);	if (config->isModified) {
2586		currentLookupIndex++;
2587		}
2588		}
2589		}
2590
2591	if (line && line->numElements >= 2) {	/* sanity check - is this entry index valid? */
2592	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	bootEntry = findEntryByIndex(config, currentLookupIndex);
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2593
2594	for (i = 1; i < line->numElements; i++)	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2595	printf("%s%s", line->elements[i].item, line->elements[i].indent);	/* entry is to be skipped or is invalid */
2596	printf("\n");	if (isAddingBootEntry) {
2597	}	config->defaultImage = newBootEntryIndex;
2598		return;
2599		}
2600		newDefault =
2601		findTemplate(config, prefix, &config->defaultImage, 1,
2602		flags);
2603		if (!newDefault) {
2604		config->defaultImage = NO_DEFAULT_ENTRY;
2605		}
2606
2607	line = getLineByType(LT_TITLE, entry->lines);	return;
2608	if (line) {	}
	printf("title=%s\n", line->elements[1].item);
	} else {
	char * title;
	line = getLineByType(LT_MENUENTRY, entry->lines);
	title = grub2ExtractTitle(line);
	if (title)
	printf("title=%s\n", title);
	}
	}
2609
2610	int isSuseSystem(void) {	currentLookupIndex--;
	const char * path;
	const static char default_path[] = "/etc/SuSE-release";
2611
2612	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	/* decrement index by the total number of entries deleted */
	path = default_path;
2613
2614	if (!access(path, R_OK))	for (indexToVerify = currentLookupIndex;
2615	return 1;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	return 0;
	}
2616
2617	int isSuseGrubConf(const char * path) {	bootEntry = findEntryByIndex(config, indexToVerify);
	FILE * grubConf;
	char * line = NULL;
	size_t len = 0, res = 0;
	grubConf = fopen(path, "r");
	if (!grubConf) {
	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);
	return 0;
	}
2618
2619	while ((res = getline(&line, &len, grubConf)) != -1) {	if (bootEntry && bootEntry->skip) {
2620	if (!strncmp(line, "setup", 5)) {	config->defaultImage--;
2621	fclose(grubConf);	}
	free(line);
	return 1;
2622	}	}
	}
	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
	path);
	fclose(grubConf);
	free(line);
	return 0;
2623	}	}
2624
2625	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2626	FILE * grubConf;	{
2627	char * line = NULL;	struct singleEntry *entry, *entry2;
2628	size_t res = 0, len = 0;	int j;
	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';
	}
2629
2630	if (!strncmp(line, "setup", 5)) {	if (config->fallbackImage == -1)
2631	if (strstr(line, "--force-lba")) {	return;
2632	*lbaPtr = 1;
2633	} else {	entry = findEntryByIndex(config, config->fallbackImage);
2634	*lbaPtr = 0;	if (!entry || entry->skip) {
2635	}	config->fallbackImage = -1;
2636	dbgPrintf("lba: %i\n", *lbaPtr);	return;
	break;
2637	}	}
	}
2638
2639	free(line);	if (hasNew)
2640	fclose(grubConf);	config->fallbackImage++;
	return 0;
	}
2641
2642	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	/* count the number of entries erased before this one */
2643	FILE * grubConf;	for (j = 0; j < config->fallbackImage; j++) {
2644	char * line = NULL;	entry2 = findEntryByIndex(config, j);
2645	size_t res = 0, len = 0;	if (entry2->skip)
2646	char * lastParamPtr = NULL;	config->fallbackImage--;
	char * secLastParamPtr = NULL;
	char installDeviceNumber = '\0';
	char * bounds = NULL;
	if (!path) return 1;
	if (!devicePtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (strncmp(line, "setup", 5))
	continue;
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2647	}	}
2648		}
2649
2650	lastParamPtr = bounds = line + res;	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2651		{
2652	/* Last parameter in grub may be an optional IMAGE_DEVICE */	struct singleLine *line;
2653	while (!isspace(*lastParamPtr))	char *root = NULL;
2654	lastParamPtr--;	int i;
2655	lastParamPtr++;	int j;
2656
2657	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2658
2659	if (lastParamPtr + 3 > bounds) {	line =
2660	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2661	fclose(grubConf);	entry->lines);
2662	free(line);	if (!line) {
2663	return 1;	printf("non linux entry\n");
2664		return;
2665	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2666
2667	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2668	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2669	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2670	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2671	while (!isspace(*secLastParamPtr))
2672	secLastParamPtr--;	if (line->numElements >= 3) {
2673	secLastParamPtr++;	printf("args=\"");
2674		i = 2;
2675	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2676	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2677	fclose(grubConf);	root = line->elements[i].item + 5;
2678	free(line);	} else {
2679	return 1;	printf("%s%s", line->elements[i].item,
2680	}	line->elements[i].indent);
2681	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2682	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2683	secLastParamPtr += 3;	i++;
2684	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2685	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
2686	} else {	} else {
2687	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2688		if (line) {
2689		char *s;
2690
2691		printf("args=\"");
2692		i = 1;
2693		while (i < line->numElements) {
2694		if (!strncmp
2695		(line->elements[i].item, "root=", 5)) {
2696		root = line->elements[i].item + 5;
2697		} else {
2698		s = line->elements[i].item;
2699
2700		printf("%s%s", s,
2701		line->elements[i].indent);
2702		}
2703
2704		i++;
2705		}
2706
2707		s = line->elements[i - 1].indent;
2708		printf("\"\n");
2709		}
2710	}	}
2711
2712	*devicePtr = malloc(6);	if (!root) {
2713	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2714	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2715	fclose(grubConf);	root = line->elements[1].item;
2716	free(line);	}
	return 0;
	}
2717
2718	free(line);	if (root) {
2719	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;
2720
2721	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2722	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2723	continue;	s[strlen(s) - 1] = '\0';
2724		/* make sure the root doesn't have a trailing " */
2725	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';
2726	}	}
2727
2728	devicePtr = line;	line =
2729	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2730		entry->lines);
2731
2732	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2733	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2735		else
2736		printf("initrd=%s", prefix);
2737
2738	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2739	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2740	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2741	devicePtr++;	printf("\n");
2742		}
2743
2744	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2745	break;	if (line) {
2746		printf("title=%s\n", line->elements[1].item);
2747		} else {
2748		char *title;
2749		line = getLineByType(LT_MENUENTRY, entry->lines);
2750		if (line) {
2751		title = grub2ExtractTitle(line);
2752		if (title)
2753		printf("title=%s\n", title);
2754		}
2755	}	}
	}
2756
2757	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2758	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2759	return 0;	if (!strncmp
2760		(prefix, line->elements[1].item, strlen(prefix)))
2761		printf("mbmodule%d=", j);
2762		else
2763		printf("mbmodule%d=%s", j, prefix);
2764
2765		for (i = 1; i < line->numElements; i++)
2766		printf("%s%s", line->elements[i].item,
2767		line->elements[i].indent);
2768		printf("\n");
2769		j++;
2770		}
2771		}
2772	}	}
2773
2774	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2775	char * grubDevice;	{
2776		const char *path;
2777		const static char default_path[] = "/etc/SuSE-release";
2778
2779	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2780	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);
2781
2782	free(grubDevice);	if (!access(path, R_OK))
2783	return 0;	return 1;
2784		return 0;
2785	}	}
2786
2787	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2788	/*	{
2789	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2790	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2791	* grub on that system.	size_t len = 0, res = 0;
2792	*/
2793	const char * path;	grubConf = fopen(path, "r");
2794	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2795		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2796	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2797	path = default_path;	return 0;
2798		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2799
2800	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2801	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2802	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2803	}	free(line);
2804		return 1;
2805		}
2806		}
2807
2808	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2809		path);
2810
2811		fclose(grubConf);
2812		free(line);
2813		return 0;
2814	}	}
2815
2816	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2817	FILE * in;	{
2818	char buf[1024];	FILE *grubConf;
2819	char * chptr;	char *line = NULL;
2820	char * start;	size_t res = 0, len = 0;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) 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);
	}
2821
2822	fclose(in);	if (!path)
2823		return 1;
2824		if (!lbaPtr)
2825		return 1;
2826
2827	return 0;	grubConf = fopen(path, "r");
2828	}	if (!grubConf)
2829		return 1;
2830
2831	void dumpSysconfigGrub(void) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2832	char * boot = NULL;	if (line[res - 1] == '\n')
2833	int lba;	line[res - 1] = '\0';
2834		else if (len > res)
2835	if (isSuseSystem()) {	line[res] = '\0';
2836	if (parseSuseGrubConf(&lba, &boot)) {	else {
2837	free(boot);	line = realloc(line, res + 1);
2838	return;	line[res] = '\0';
2839	}	}
2840	} else {
2841	if (parseSysconfigGrub(&lba, &boot)) {	if (!strncmp(line, "setup", 5)) {
2842	free(boot);	if (strstr(line, "--force-lba")) {
2843	return;	*lbaPtr = 1;
2844		} else {
2845		*lbaPtr = 0;
2846		}
2847		dbgPrintf("lba: %i\n", *lbaPtr);
2848		break;
2849		}
2850	}	}
	}
2851
2852	if (lba) printf("lba\n");	free(line);
2853	if (boot) {	fclose(grubConf);
2854	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2855	}	}
2856
2857	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2858	const char * prefix) {	{
2859	int i = 0;	FILE *grubConf;
2860	struct singleEntry * entry;	char *line = NULL;
2861	struct singleLine * line;	size_t res = 0, len = 0;
2862		char *lastParamPtr = NULL;
2863	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2864	if (!entry) {	char installDeviceNumber = '\0';
2865	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);
	}
2866
2867	line = getLineByType(LT_LBA, config->theLines);	if (!path)
2868	if (line) printf("lba\n");	return 1;
2869	}	if (!devicePtr)
2870		return 1;
2871
2872	displayEntry(entry, prefix, i);	grubConf = fopen(path, "r");
2873		if (!grubConf)
2874		return 1;
2875
2876	i++;	while ((res = getline(&line, &len, grubConf)) != -1) {
2877	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	if (strncmp(line, "setup", 5))
2878	displayEntry(entry, prefix, i);	continue;
2879	i++;
2880	}	if (line[res - 1] == '\n')
2881		line[res - 1] = '\0';
2882		else if (len > res)
2883		line[res] = '\0';
2884		else {
2885		line = realloc(line, res + 1);
2886		line[res] = '\0';
2887		}
2888
2889	return 0;	lastParamPtr = bounds = line + res;
	}
2890
2891	struct singleLine * addLineTmpl(struct singleEntry * entry,	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2892	struct singleLine * tmplLine,	while (!isspace(*lastParamPtr))
2893	struct singleLine * prevLine,	lastParamPtr--;
2894	const char * val,	lastParamPtr++;
2895	struct configFileInfo * cfi)
2896	{	secLastParamPtr = lastParamPtr - 2;
2897	struct singleLine * newLine = lineDup(tmplLine);	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2898
2899	if (isEfi && cfi == &grub2ConfigType) {	if (lastParamPtr + 3 > bounds) {
2900	enum lineType_e old = newLine->type;	dbgPrintf("lastParamPtr going over boundary");
2901	newLine->type = preferredLineType(newLine->type, cfi);	fclose(grubConf);
2902	if (old != newLine->type)	free(line);
2903	newLine->elements[0].item = getKeyByType(newLine->type, cfi);	return 1;
2904	}	}
2905		if (!strncmp(lastParamPtr, "(hd", 3))
2906		lastParamPtr += 3;
2907		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2908
2909		/*
2910		* Second last parameter will decide wether last parameter is
2911		* an IMAGE_DEVICE or INSTALL_DEVICE
2912		*/
2913		while (!isspace(*secLastParamPtr))
2914		secLastParamPtr--;
2915		secLastParamPtr++;
2916
2917		if (secLastParamPtr + 3 > bounds) {
2918		dbgPrintf("secLastParamPtr going over boundary");
2919		fclose(grubConf);
2920		free(line);
2921		return 1;
2922		}
2923		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2924		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2925		secLastParamPtr += 3;
2926		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2927		installDeviceNumber = *secLastParamPtr;
2928		} else {
2929		installDeviceNumber = *lastParamPtr;
2930		}
2931
2932	if (val) {	*devicePtr = malloc(6);
2933	/* override the inherited value with our own.	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2934	* This is a little weak because it only applies to elements[1]	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2935	*/	fclose(grubConf);
2936	if (newLine->numElements > 1)	free(line);
2937	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);
	}
2938	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
2939
2940	if (!entry->lines) {	free(line);
2941	/* first one on the list */	fclose(grubConf);
2942	entry->lines = newLine;	return 1;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
2943	}	}
2944
2945	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2946	struct singleLine *  addLine(struct singleEntry * entry,	{
2947	struct configFileInfo * cfi,	FILE *deviceMap;
2948	enum lineType_e type, char * defaultIndent,	char *line = NULL;
2949	const char * val) {	size_t res = 0, len = 0;
2950	struct singleLine * line, * prev;	char *devicePtr;
2951	struct keywordTypes * kw;	char *bounds = NULL;
2952	struct singleLine tmpl;	const char *path;
2953		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 = "";
	}
	}
2954
2955	/* The last non-empty line gives us the indention to us and the line	if (!device)
2956	to insert after. Note that comments are considered empty lines, which	return 1;
2957	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
2958	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;
	}
2959
2960	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2961	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;
	}
2962
2963	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
2964	}	deviceMap = fopen(path, "r");
2965		if (!deviceMap)
2966		return 1;
2967
2968	void removeLine(struct singleEntry * entry, struct singleLine * line) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
2969	struct singleLine * prev;	if (!strncmp(line, "#", 1))
2970	int i;	continue;
2971
2972		if (line[res - 1] == '\n')
2973		line[res - 1] = '\0';
2974		else if (len > res)
2975		line[res] = '\0';
2976		else {
2977		line = realloc(line, res + 1);
2978		line[res] = '\0';
2979		}
2980
2981	for (i = 0; i < line->numElements; i++) {	devicePtr = line;
2982	free(line->elements[i].item);	bounds = line + res;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2983
2984	if (line == entry->lines) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2985	entry->lines = line->next;	devicePtr++;
2986	} else {	dbgPrintf("device: %s\n", devicePtr);
2987	prev = entry->lines;
2988	while (prev->next != line) prev = prev->next;	if (!strncmp(devicePtr, device, strlen(device))) {
2989	prev->next = line->next;	devicePtr += strlen(device);
2990	}	while (isspace(*devicePtr)
2991		&& ((devicePtr + 1) <= bounds))
2992		devicePtr++;
2993
2994		*bootPtr = strdup(devicePtr);
2995		break;
2996		}
2997		}
2998
2999	free(line);	free(line);
3000		fclose(deviceMap);
3001		return 0;
3002	}	}
3003
3004	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3005	{	{
3006	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] = ' ';
	}
3007
3008	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3009	/* move the end-of-line forward */	dbgPrintf("error looking for grub installation device\n");
3010	line->elements[insertHere].indent =	else
3011	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);
	}
3012
3013	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3014		dbgPrintf("error looking for grub boot device\n");
3015		else
3016		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3017
3018	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3019	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3020	}	}
3021
3022	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3023	int i;	{
3024		/*
3025	/* sanity check */	* This SuSE grub configuration file at this location is not your
3026	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3027		* used to setup grub on that system.
3028	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3029	removeHere, line->elements[removeHere].item);	const char *path;
3030		const static char default_path[] = "/etc/grub.conf";
3031
3032	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3033		path = default_path;
3034
3035	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3036	/* 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);
	}
3037
3038	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3039	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3040	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3041		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;
3042	}	}
	}
3043
3044	if (!removeArgs) {	if (bootPtr) {
3045	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3046	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3047	}	}
	}
3048
3049		return 0;
3050		}
3051
3052		int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3053		{
3054		FILE *in;
3055		char buf[1024];
3056		char *chptr;
3057		char *start;
3058		char *param;
3059
3060		in = fopen("/etc/sysconfig/grub", "r");
3061		if (!in)
3062		return 1;
3063
3064	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	if (lbaPtr)
3065	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	*lbaPtr = 0;
3066		if (bootPtr)
3067		*bootPtr = NULL;
3068
3069		while (fgets(buf, sizeof(buf), in)) {
3070		start = buf;
3071		while (isspace(*start))
3072		start++;
3073		if (*start == '#')
3074		continue;
3075
3076		chptr = strchr(start, '=');
3077		if (!chptr)
3078		continue;
3079		chptr--;
3080		while (*chptr && isspace(*chptr))
3081		chptr--;
3082		chptr++;
3083		*chptr = '\0';
3084
3085		param = chptr + 1;
3086		while (*param && isspace(*param))
3087		param++;
3088		if (*param == '=') {
3089		param++;
3090		while (*param && isspace(*param))
3091		param++;
3092		}
3093
3094	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	chptr = param;
3095	&& !multibootArgs);	while (*chptr && !isspace(*chptr))
3096		chptr++;
3097		*chptr = '\0';
3098
3099		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3100		*lbaPtr = 1;
3101		else if (!strcmp(start, "boot") && bootPtr)
3102		*bootPtr = strdup(param);
3103		}
3104
3105	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	fclose(in);
3106
3107	if (multibootArgs && !entry->multiboot)	return 0;
3108	continue;	}
3109
3110	/* Determine where to put the args.  If this config supports	void dumpSysconfigGrub(void)
3111	* LT_KERNELARGS, use that.  Otherwise use	{
3112	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	char *boot = NULL;
3113	*/	int lba;
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
3114
3115		if (isSuseSystem()) {
3116		if (parseSuseGrubConf(&lba, &boot)) {
3117		free(boot);
3118		return;
3119		}
3120	} else {	} else {
3121	line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI, entry->lines);	if (parseSysconfigGrub(&lba, &boot)) {
3122	if (!line) {	free(boot);
3123	/* no LT_KERNEL or LT_MBMODULE in this entry? */	return;
3124	continue;	}
	}
	firstElement = 2;
3125	}	}
3126
3127	/* handle the elilo case which does:	if (lba)
3128	*   append="hypervisor args -- kernel args"	printf("lba\n");
3129	*/	if (boot) {
3130	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	printf("boot=%s\n", boot);
3131	/* this is a multiboot entry, make sure there's	free(boot);
3132	* -- on the args line	}
3133	*/	}
	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;
	}
	}
3134
3135	if (i < line->numElements && doreplace) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3136	/* direct replacement */	{
3137	free(line->elements[i].item);	int i = 0;
3138	line->elements[i].item = strdup(*arg);	struct singleEntry *entry;
3139		struct singleLine *line;
3140
3141		entry = findEntryByPath(config, kernel, prefix, &i);
3142		if (!entry) {
3143		fprintf(stderr, _("grubby: kernel not found\n"));
3144		return 1;
3145		}
3146
3147	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3148	/* root= replacement */	be a better way */
3149	rootLine = getLineByType(LT_ROOT, entry->lines);	if (config->cfi == &grubConfigType) {
3150	if (rootLine) {	dumpSysconfigGrub();
3151	free(rootLine->elements[1].item);	} else {
3152	rootLine->elements[1].item = strdup(*arg + 5);	line = getLineByType(LT_BOOT, config->theLines);
3153	} else {	if (line && line->numElements >= 1) {
3154	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	printf("boot=%s\n", line->elements[1].item);
	cfg->secondaryIndent, *arg + 5);
3155	}	}
	}
3156
3157	else {	line = getLineByType(LT_LBA, config->theLines);
3158	/* insert/append */	if (line)
3159	insertElement(line, *arg, i, cfg->cfi);	printf("lba\n");
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
3160	}	}
	}
3161
3162	free(newArgs);	displayEntry(entry, prefix, i);
	free(oldArgs);
3163
3164	return 0;	i++;
3165		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3166		displayEntry(entry, prefix, i);
3167		i++;
3168		}
3169
3170		return 0;
3171	}	}
3172
3173	int updateImage(struct grubConfig * cfg, const char * image,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3174	const char * prefix, const char * addArgs,	struct singleLine *tmplLine,
3175	const char * removeArgs,	struct singleLine *prevLine,
3176	const char * addMBArgs, const char * removeMBArgs) {	const char *val, struct configFileInfo *cfi)
3177	int rc = 0;	{
3178		struct singleLine *newLine = lineDup(tmplLine);
3179	if (!image) return rc;
3180		if (isEfi && cfi == &grub2ConfigType) {
3181	/* update the main args first... */	enum lineType_e old = newLine->type;
3182	if (addArgs || removeArgs)	newLine->type = preferredLineType(newLine->type, cfi);
3183	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (old != newLine->type)
3184	if (rc) return rc;	newLine->elements[0].item =
3185		getKeyByType(newLine->type, cfi);
	/* 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)
	return 1;
3186	}	}
3187
3188	break;	if (val) {
3189	}	/* override the inherited value with our own.
3190		* This is a little weak because it only applies to elements[1]
3191		*/
3192		if (newLine->numElements > 1)
3193		removeElement(newLine, 1);
3194		insertElement(newLine, val, 1, cfi);
3195
3196		/* but try to keep the rootspec from the template... sigh */
3197		if (tmplLine->
3198		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3199		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3200		LT_INITRD_16)) {
3201		char *rootspec =
3202		getRootSpecifier(tmplLine->elements[1].item);
3203		if (rootspec != NULL) {
3204		free(newLine->elements[1].item);
3205		newLine->elements[1].item =
3206		sdupprintf("%s%s", rootspec, val);
3207		}
3208		}
3209		}
3210
3211	return 0;	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3212	}	newLine->elements[0].item : "");
3213
3214	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (!entry->lines) {
3215	int fd;	/* first one on the list */
3216	unsigned char bootSect[512];	entry->lines = newLine;
3217	int offset;	} else if (prevLine) {
3218		/* add after prevLine */
3219	fd = open(device, O_RDONLY);	newLine->next = prevLine->next;
3220	if (fd < 0) {	prevLine->next = newLine;
3221	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
3222
3223	if (read(fd, bootSect, 512) != 512) {	return newLine;
3224	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
	close(fd);
3225
3226	/* first three bytes should match, a jmp short should be in there */	/* val may be NULL */
3227	if (memcmp(boot, bootSect, 3))	struct singleLine *addLine(struct singleEntry *entry,
3228	return 0;	struct configFileInfo *cfi,
3229		enum lineType_e type, char *defaultIndent,
3230		const char *val)
3231		{
3232		struct singleLine *line, *prev;
3233		struct keywordTypes *kw;
3234		struct singleLine tmpl;
3235
3236	if (boot[1] == JMP_SHORT_OPCODE) {	/* NB: This function shouldn't allocate items on the heap, rather on
3237	offset = boot[2] + 2;	* the stack since it calls addLineTmpl which will make copies.
	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
	offset = (boot[3] << 8) + boot[2] + 2;
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
3238	*/	*/
3239	if ((bootSect[offset + 1] == NOOP_OPCODE)	if (type == LT_TITLE && cfi->titleBracketed) {
3240	&& (bootSect[offset + 2] == NOOP_OPCODE)) {	/* we're doing a bracketed title (zipl) */
3241	offset = offset + 3;	tmpl.type = type;
3242	}	tmpl.numElements = 1;
3243	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {	tmpl.elements = alloca(sizeof(*tmpl.elements));
3244	offset = (boot[2] << 8) + boot[1] + 2;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3245	} else {	sprintf(tmpl.elements[0].item, "[%s]", val);
3246	return 0;	tmpl.elements[0].indent = "";
3247	}	val = NULL;
3248		} else if (type == LT_MENUENTRY) {
3249		char *lineend = "--class gnu-linux --class gnu --class os {";
3250		if (!val) {
3251		fprintf(stderr,
3252		"Line type LT_MENUENTRY requires a value\n");
3253		abort();
3254		}
3255		kw = getKeywordByType(type, cfi);
3256		if (!kw) {
3257		fprintf(stderr,
3258		"Looking up keyword for unknown type %d\n",
3259		type);
3260		abort();
3261		}
3262		tmpl.indent = "";
3263		tmpl.type = type;
3264		tmpl.numElements = 3;
3265		tmpl.elements =
3266		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3267		tmpl.elements[0].item = kw->key;
3268		tmpl.elements[0].indent = alloca(2);
3269		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3270		tmpl.elements[1].item = (char *)val;
3271		tmpl.elements[1].indent = alloca(2);
3272		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3273		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3274		strcpy(tmpl.elements[2].item, lineend);
3275		tmpl.elements[2].indent = "";
3276		} else {
3277		kw = getKeywordByType(type, cfi);
3278		if (!kw) {
3279		fprintf(stderr,
3280		"Looking up keyword for unknown type %d\n",
3281		type);
3282		abort();
3283		}
3284		tmpl.type = type;
3285		tmpl.numElements = val ? 2 : 1;
3286		tmpl.elements =
3287		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3288		tmpl.elements[0].item = kw->key;
3289		tmpl.elements[0].indent = alloca(2);
3290		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3291		if (val) {
3292		tmpl.elements[1].item = (char *)val;
3293		tmpl.elements[1].indent = "";
3294		}
3295		}
3296
3297	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	/* The last non-empty line gives us the indention to us and the line
3298	return 0;	* to insert after. Note that comments are considered empty lines,
3299		* which may not be ideal? If there are no lines or we are looking at
3300		* the first line, we use defaultIndent (the first line is normally
3301		* indented differently from the rest) */
3302		for (line = entry->lines, prev = NULL; line; line = line->next) {
3303		if (line->numElements)
3304		prev = line;
3305		/* fall back on the last line if prev isn't otherwise set */
3306		if (!line->next && !prev)
3307		prev = line;
3308		}
3309
3310		struct singleLine *menuEntry;
3311		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3312		if (tmpl.type == LT_ENTRY_END) {
3313		if (menuEntry)
3314		tmpl.indent = menuEntry->indent;
3315		else
3316		tmpl.indent = defaultIndent ? : "";
3317		} else if (tmpl.type != LT_MENUENTRY) {
3318		if (menuEntry)
3319		tmpl.indent = "\t";
3320		else if (prev == entry->lines)
3321		tmpl.indent = defaultIndent ? : "";
3322		else
3323		tmpl.indent = prev->indent;
3324		}
3325
3326	return 2;	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3327	}	}
3328
3329	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3330	int fd;	{
3331	char buf[65536];	struct singleLine *prev;
3332	char * end;	int i;
3333	char * chptr;
3334	char * chptr2;	for (i = 0; i < line->numElements; i++) {
3335	int rc;	free(line->elements[i].item);
3336		free(line->elements[i].indent);
3337		}
3338		free(line->elements);
3339		free(line->indent);
3340
3341	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (line == entry->lines) {
3342	*raw* devices listed in there */	entry->lines = line->next;
3343		} else {
3344		prev = entry->lines;
3345		while (prev->next != line)
3346		prev = prev->next;
3347		prev->next = line->next;
3348		}
3349
3350	if (!strncmp(mdDev, "/dev/", 5))	free(line);
3351	mdDev += 5;	}
3352
3353	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3354	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	{
3355	strerror(errno));	struct singleLine newLine = {
3356	return 2;	.indent = tmplLine->indent,
3357	}	.type = tmplLine->type,
3358		.next = tmplLine->next,
3359		};
3360		int firstQuotedItem = -1;
3361		int quoteLen = 0;
3362		int j;
3363		int element = 0;
3364		char *c;
3365
3366	rc = read(fd, buf, sizeof(buf) - 1);	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3367	if (rc < 0 || rc == (sizeof(buf) - 1)) {	strcpy(c, tmplLine->elements[0].item);
3368	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	insertElement(&newLine, c, element++, cfi);
3369	strerror(errno));	free(c);
3370	close(fd);	c = NULL;
3371	return 2;
3372	}	for (j = 1; j < tmplLine->numElements; j++) {
3373	close(fd);	if (firstQuotedItem == -1) {
3374	buf[rc] = '\0';	quoteLen += strlen(tmplLine->elements[j].item);
3375
3376		if (isquote(tmplLine->elements[j].item[0])) {
3377		firstQuotedItem = j;
3378		quoteLen +=
3379		strlen(tmplLine->elements[j].indent);
3380		} else {
3381		c = malloc(quoteLen + 1);
3382		strcpy(c, tmplLine->elements[j].item);
3383		insertElement(&newLine, c, element++, cfi);
3384		free(c);
3385		quoteLen = 0;
3386		}
3387		} else {
3388		int itemlen = strlen(tmplLine->elements[j].item);
3389		quoteLen += itemlen;
3390		quoteLen += strlen(tmplLine->elements[j].indent);
3391
3392		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3393		c = malloc(quoteLen + 1);
3394		c[0] = '\0';
3395		for (int i = firstQuotedItem; i < j + 1; i++) {
3396		strcat(c, tmplLine->elements[i].item);
3397		strcat(c, tmplLine->elements[i].indent);
3398		}
3399		insertElement(&newLine, c, element++, cfi);
3400		free(c);
3401
3402	chptr = buf;	firstQuotedItem = -1;
3403	while (*chptr) {	quoteLen = 0;
3404	end = strchr(chptr, '\n');	}
3405	if (!end) break;	}
3406	*end = '\0';	}
3407		while (tmplLine->numElements)
3408		removeElement(tmplLine, 0);
3409		if (tmplLine->elements)
3410		free(tmplLine->elements);
3411
3412		tmplLine->numElements = newLine.numElements;
3413		tmplLine->elements = newLine.elements;
3414		}
3415
3416	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	static void insertElement(struct singleLine *line,
3417	chptr[strlen(mdDev)] == ' ') {	const char *item, int insertHere,
3418		struct configFileInfo *cfi)
3419		{
3420		struct keywordTypes *kw;
3421		char indent[2] = "";
3422
3423	/* found the device */	/* sanity check */
3424	while (*chptr && *chptr != ':') chptr++;	if (insertHere > line->numElements) {
3425	chptr++;	dbgPrintf
3426	while (*chptr && isspace(*chptr)) chptr++;	("insertElement() adjusting insertHere from %d to %d\n",
3427		insertHere, line->numElements);
3428	/* skip the "active" bit */	insertHere = line->numElements;
3429	while (*chptr && !isspace(*chptr)) chptr++;	}
3430	while (*chptr && isspace(*chptr)) chptr++;
3431		line->elements = realloc(line->elements, (line->numElements + 1) *
3432	/* skip the raid level */	sizeof(*line->elements));
3433	while (*chptr && !isspace(*chptr)) chptr++;	memmove(&line->elements[insertHere + 1],
3434	while (*chptr && isspace(*chptr)) chptr++;	&line->elements[insertHere],
3435		(line->numElements - insertHere) * sizeof(*line->elements));
3436	/* everything else is partition stuff */	line->elements[insertHere].item = strdup(item);
3437	while (*chptr) {
3438	chptr2 = chptr;	kw = getKeywordByType(line->type, cfi);
3439	while (*chptr2 && *chptr2 != '[') chptr2++;
3440	if (!*chptr2) break;	if (line->numElements == 0) {
3441		indent[0] = '\0';
3442	/* yank off the numbers at the end */	} else if (insertHere == 0) {
3443	chptr2--;	indent[0] = kw->nextChar;
3444	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	} else if (kw->separatorChar != '\0') {
3445	chptr2++;	indent[0] = kw->separatorChar;
3446	*chptr2 = '\0';	} else {
3447		indent[0] = ' ';
3448	/* 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++;
	}
3449
3450	/*  we're good to go */	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3451	return 2;	/* move the end-of-line forward */
3452		line->elements[insertHere].indent =
3453		line->elements[insertHere - 1].indent;
3454		line->elements[insertHere - 1].indent = strdup(indent);
3455		} else {
3456		line->elements[insertHere].indent = strdup(indent);
3457	}	}
3458
3459	chptr = end + 1;	line->numElements++;
	}
3460
3461	fprintf(stderr,	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3462	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	line->elements[0].item,
3463	mdDev);	line->elements[insertHere].item,
3464	return 0;	line->elements[insertHere].indent, insertHere);
3465	}	}
3466
3467	int checkForLilo(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3468	int fd;	{
3469	unsigned char boot[512];	int i;
	struct singleLine * line;
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
	if (line->numElements != 2) return 1;
	fd = open("/boot/boot.b", O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3470
3471	if (read(fd, boot, 512) != 512) {	/* sanity check */
3472	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (removeHere >= line->numElements)
3473	"/boot/boot.b", strerror(errno));	return;
3474	return 1;
3475	}	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3476	close(fd);	removeHere, line->elements[removeHere].item);
3477
3478		free(line->elements[removeHere].item);
3479
3480		if (removeHere > 1) {
3481		/* previous argument gets this argument's post-indentation */
3482		free(line->elements[removeHere - 1].indent);
3483		line->elements[removeHere - 1].indent =
3484		line->elements[removeHere].indent;
3485		} else {
3486		free(line->elements[removeHere].indent);
3487		}
3488
3489	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* now collapse the array, but don't bother to realloc smaller */
3490	return checkLiloOnRaid(line->elements[1].item, boot);	for (i = removeHere; i < line->numElements - 1; i++)
3491		line->elements[i] = line->elements[i + 1];
3492
3493	return checkDeviceBootloader(line->elements[1].item, boot);	line->numElements--;
3494	}	}
3495
3496	int checkForGrub2(struct grubConfig * config) {	int argMatch(const char *one, const char *two)
3497	if (!access("/etc/grub.d/", R_OK))	{
3498	return 2;	char *first, *second;
3499		char *chptr;
3500
3501	return 1;	first = strcpy(alloca(strlen(one) + 1), one);
3502	}	second = strcpy(alloca(strlen(two) + 1), two);
3503
3504	int checkForGrub(struct grubConfig * config) {	chptr = strchr(first, '=');
3505	int fd;	if (chptr)
3506	unsigned char bootSect[512];	*chptr = '\0';
	char * boot;
	int onSuse = isSuseSystem();
3507
3508		chptr = strchr(second, '=');
3509		if (chptr)
3510		*chptr = '\0';
3511
3512	if (onSuse) {	return strcmp(first, second);
3513	if (parseSuseGrubConf(NULL, &boot))	}
	return 0;
	} else {
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
	}
3514
3515	/* assume grub is not installed -- not an error condition */	int updateActualImage(struct grubConfig *cfg, const char *image,
3516	if (!boot)	const char *prefix, const char *addArgs,
3517	return 0;	const char *removeArgs, int multibootArgs)
3518		{
3519		struct singleEntry *entry;
3520		struct singleLine *line, *rootLine;
3521		int index = 0;
3522		int i, k;
3523		const char **newArgs, **oldArgs;
3524		const char **arg;
3525		int useKernelArgs, useRoot;
3526		int firstElement;
3527		int *usedElements;
3528		int doreplace;
3529
3530	fd = open("/boot/grub/stage1", O_RDONLY);	if (!image)
3531	if (fd < 0)	return 0;
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3532
3533	if (read(fd, bootSect, 512) != 512) {	if (!addArgs) {
3534	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	newArgs = malloc(sizeof(*newArgs));
3535	"/boot/grub/stage1", strerror(errno));	*newArgs = NULL;
3536	close(fd);	} else {
3537	return 1;	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3538	}	fprintf(stderr,
3539	close(fd);	_("grubby: error separating arguments '%s'\n"),
3540		addArgs);
3541		return 1;
3542		}
3543		}
3544
3545	/* The more elaborate checks do not work on SuSE. The checks done	if (!removeArgs) {
3546	* seem to be reasonble (at least for now), so just return success	oldArgs = malloc(sizeof(*oldArgs));
3547	*/	*oldArgs = NULL;
3548	if (onSuse)	} else {
3549	return 2;	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3550		fprintf(stderr,
3551		_("grubby: error separating arguments '%s'\n"),
3552		removeArgs);
3553		free(newArgs);
3554		return 1;
3555		}
3556		}
3557
3558		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3559		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3560
3561		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3562		&& !multibootArgs);
3563
3564		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3565
3566		if (multibootArgs && !entry->multiboot)
3567		continue;
3568
3569		/* Determine where to put the args.  If this config supports
3570		* LT_KERNELARGS, use that.  Otherwise use
3571		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3572		*/
3573		if (useKernelArgs) {
3574		line = getLineByType(LT_KERNELARGS, entry->lines);
3575		if (!line) {
3576		/* no LT_KERNELARGS, need to add it */
3577		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3578		cfg->secondaryIndent, NULL);
3579		}
3580		firstElement = 1;
3581
3582		} else if (multibootArgs) {
3583		line = getLineByType(LT_HYPER, entry->lines);
3584		if (!line) {
3585		/* a multiboot entry without LT_HYPER? */
3586		continue;
3587		}
3588		firstElement = 2;
3589
3590		} else {
3591		line =
3592		getLineByType(LT_KERNEL | LT_MBMODULE |
3593		LT_KERNEL_EFI | LT_KERNEL_16,
3594		entry->lines);
3595		if (!line) {
3596		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3597		continue;
3598		}
3599		firstElement = 2;
3600		}
3601
3602		/* handle the elilo case which does:
3603		*   append="hypervisor args -- kernel args"
3604		*/
3605		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3606		/* this is a multiboot entry, make sure there's
3607		* -- on the args line
3608		*/
3609		for (i = firstElement; i < line->numElements; i++) {
3610		if (!strcmp(line->elements[i].item, "--"))
3611		break;
3612		}
3613		if (i == line->numElements) {
3614		/* assume all existing args are kernel args,
3615		* prepend -- to make it official
3616		*/
3617		insertElement(line, "--", firstElement,
3618		cfg->cfi);
3619		i = firstElement;
3620		}
3621		if (!multibootArgs) {
3622		/* kernel args start after the -- */
3623		firstElement = i + 1;
3624		}
3625		} else if (cfg->cfi->mbConcatArgs) {
3626		/* this is a non-multiboot entry, remove hyper args */
3627		for (i = firstElement; i < line->numElements; i++) {
3628		if (!strcmp(line->elements[i].item, "--"))
3629		break;
3630		}
3631		if (i < line->numElements) {
3632		/* remove args up to -- */
3633		while (strcmp
3634		(line->elements[firstElement].item,
3635		"--"))
3636		removeElement(line, firstElement);
3637		/* remove -- */
3638		removeElement(line, firstElement);
3639		}
3640		}
3641
3642		usedElements = calloc(line->numElements, sizeof(*usedElements));
3643
3644		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3645
3646		doreplace = 1;
3647		for (i = firstElement; i < line->numElements; i++) {
3648		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3649		!strcmp(line->elements[i].item, "--")) {
3650		/* reached the end of hyper args, insert here */
3651		doreplace = 0;
3652		break;
3653		}
3654		if (usedElements[i])
3655		continue;
3656		if (!argMatch(line->elements[i].item, *arg)) {
3657		usedElements[i] = 1;
3658		break;
3659		}
3660		}
3661
3662		if (i < line->numElements && doreplace) {
3663		/* direct replacement */
3664		free(line->elements[i].item);
3665		line->elements[i].item = strdup(*arg);
3666
3667		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3668		/* root= replacement */
3669		rootLine = getLineByType(LT_ROOT, entry->lines);
3670		if (rootLine) {
3671		free(rootLine->elements[1].item);
3672		rootLine->elements[1].item =
3673		strdup(*arg + 5);
3674		} else {
3675		rootLine =
3676		addLine(entry, cfg->cfi, LT_ROOT,
3677		cfg->secondaryIndent,
3678		*arg + 5);
3679		}
3680		}
3681
3682		else {
3683		/* insert/append */
3684		insertElement(line, *arg, i, cfg->cfi);
3685		usedElements =
3686		realloc(usedElements,
3687		line->numElements *
3688		sizeof(*usedElements));
3689		memmove(&usedElements[i + 1], &usedElements[i],
3690		line->numElements - i - 1);
3691		usedElements[i] = 1;
3692
3693		/* if we updated a root= here even though
3694		* there is a LT_ROOT available we need to
3695		* remove the LT_ROOT entry (this will happen
3696		* if we switch from a device to a label) */
3697		if (useRoot && !strncmp(*arg, "root=", 5)) {
3698		rootLine =
3699		getLineByType(LT_ROOT,
3700		entry->lines);
3701		if (rootLine)
3702		removeLine(entry, rootLine);
3703		}
3704		}
3705		}
3706
3707		free(usedElements);
3708
3709		for (arg = oldArgs; *arg; arg++) {
3710		for (i = firstElement; i < line->numElements; i++) {
3711		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3712		!strcmp(line->elements[i].item, "--"))
3713		/* reached the end of hyper args, stop here */
3714		break;
3715		if (!argMatch(line->elements[i].item, *arg)) {
3716		removeElement(line, i);
3717		break;
3718		}
3719		}
3720		/* handle removing LT_ROOT line too */
3721		if (useRoot && !strncmp(*arg, "root=", 5)) {
3722		rootLine = getLineByType(LT_ROOT, entry->lines);
3723		if (rootLine)
3724		removeLine(entry, rootLine);
3725		}
3726		}
3727
3728	return checkDeviceBootloader(boot, bootSect);	if (line->numElements == 1) {
3729		/* don't need the line at all (note it has to be a
3730		LT_KERNELARGS for this to happen */
3731		removeLine(entry, line);
3732		}
3733		}
3734
3735		free(newArgs);
3736		free(oldArgs);
3737
3738		return 0;
3739	}	}
3740
3741	int checkForExtLinux(struct grubConfig * config) {	int updateImage(struct grubConfig *cfg, const char *image,
3742	int fd;	const char *prefix, const char *addArgs,
3743	unsigned char bootSect[512];	const char *removeArgs,
3744	char * boot;	const char *addMBArgs, const char *removeMBArgs)
3745	char executable[] = "/boot/extlinux/extlinux";	{
3746		int rc = 0;
3747
3748		if (!image)
3749		return rc;
3750
3751		/* update the main args first... */
3752		if (addArgs || removeArgs)
3753		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3754		0);
3755		if (rc)
3756		return rc;
3757
3758		/* and now any multiboot args */
3759		if (addMBArgs || removeMBArgs)
3760		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3761		removeMBArgs, 1);
3762		return rc;
3763		}
3764
3765		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3766		const char *image, const char *prefix, const char *initrd,
3767		const char *title)
3768		{
3769		struct singleEntry *entry;
3770		struct singleLine *line, *kernelLine, *endLine = NULL;
3771		int index = 0;
3772
3773	printf("entered: checkForExtLinux()\n");	if (!image)
3774		return 0;
3775
3776		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3777		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3778		if (!kernelLine)
3779		continue;
3780
3781		/* if title is supplied, the entry's title must match it. */
3782		if (title) {
3783		char *linetitle;
3784
3785		line =
3786		getLineByType(LT_TITLE | LT_MENUENTRY,
3787		entry->lines);
3788		if (!line)
3789		continue;
3790
3791		linetitle = extractTitle(cfg, line);
3792		if (!linetitle)
3793		continue;
3794		if (strcmp(title, linetitle)) {
3795		free(linetitle);
3796		continue;
3797		}
3798		free(linetitle);
3799		}
3800
3801		if (prefix) {
3802		int prefixLen = strlen(prefix);
3803		if (!strncmp(initrd, prefix, prefixLen))
3804		initrd += prefixLen;
3805		}
3806		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3807		if (endLine)
3808		removeLine(entry, endLine);
3809		line =
3810		addLine(entry, cfg->cfi,
3811		preferredLineType(LT_MBMODULE, cfg->cfi),
3812		kernelLine->indent, initrd);
3813		if (!line)
3814		return 1;
3815		if (endLine) {
3816		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3817		if (!line)
3818		return 1;
3819		}
3820
3821		break;
3822		}
3823
	if (parseSysconfigGrub(NULL, &boot))
3824	return 0;	return 0;
3825		}
3826
3827		int updateInitrd(struct grubConfig *cfg, const char *image,
3828		const char *prefix, const char *initrd, const char *title)
3829		{
3830		struct singleEntry *entry;
3831		struct singleLine *line, *kernelLine, *endLine = NULL;
3832		int index = 0;
3833
3834		if (!image)
3835		return 0;
3836
3837		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3838		kernelLine =
3839		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3840		entry->lines);
3841		if (!kernelLine)
3842		continue;
3843
3844		/* if title is supplied, the entry's title must match it. */
3845		if (title) {
3846		char *linetitle;
3847
3848		line =
3849		getLineByType(LT_TITLE | LT_MENUENTRY,
3850		entry->lines);
3851		if (!line)
3852		continue;
3853
3854		linetitle = extractTitle(cfg, line);
3855		if (!linetitle)
3856		continue;
3857		if (strcmp(title, linetitle)) {
3858		free(linetitle);
3859		continue;
3860		}
3861		free(linetitle);
3862		}
3863
3864		line =
3865		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3866		entry->lines);
3867		if (line)
3868		removeLine(entry, line);
3869		if (prefix) {
3870		int prefixLen = strlen(prefix);
3871		if (!strncmp(initrd, prefix, prefixLen))
3872		initrd += prefixLen;
3873		}
3874		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3875		if (endLine)
3876		removeLine(entry, endLine);
3877		enum lineType_e lt;
3878		switch (kernelLine->type) {
3879		case LT_KERNEL:
3880		lt = LT_INITRD;
3881		break;
3882		case LT_KERNEL_EFI:
3883		lt = LT_INITRD_EFI;
3884		break;
3885		case LT_KERNEL_16:
3886		lt = LT_INITRD_16;
3887		break;
3888		default:
3889		lt = preferredLineType(LT_INITRD, cfg->cfi);
3890		}
3891		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3892		if (!line)
3893		return 1;
3894		if (endLine) {
3895		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3896		if (!line)
3897		return 1;
3898		}
3899
3900		break;
3901		}
3902
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3903	return 0;	return 0;
3904		}
3905
3906		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3907		{
3908		int fd;
3909		unsigned char bootSect[512];
3910		int offset;
3911
3912		fd = open(device, O_RDONLY);
3913		if (fd < 0) {
3914		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3915		device, strerror(errno));
3916		return 1;
3917		}
3918
3919		if (read(fd, bootSect, 512) != 512) {
3920		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3921		device, strerror(errno));
3922		return 1;
3923		}
3924		close(fd);
3925
3926		/* first three bytes should match, a jmp short should be in there */
3927		if (memcmp(boot, bootSect, 3))
3928		return 0;
3929
3930		if (boot[1] == JMP_SHORT_OPCODE) {
3931		offset = boot[2] + 2;
3932		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3933		offset = (boot[3] << 8) + boot[2] + 2;
3934		} else if (boot[0] == JMP_SHORT_OPCODE) {
3935		offset = boot[1] + 2;
3936		/*
3937		* it looks like grub, when copying stage1 into the mbr,
3938		* patches stage1 right after the JMP location, replacing
3939		* other instructions such as JMPs for NOOPs. So, relax the
3940		* check a little bit by skipping those different bytes.
3941		*/
3942		if ((bootSect[offset + 1] == NOOP_OPCODE)
3943		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3944		offset = offset + 3;
3945		}
3946		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3947		offset = (boot[2] << 8) + boot[1] + 2;
3948		} else {
3949		return 0;
3950		}
3951
3952		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3953		return 0;
3954
3955		return 2;
3956		}
3957
3958		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3959		{
3960		int fd;
3961		char buf[65536];
3962		char *end;
3963		char *chptr;
3964		char *chptr2;
3965		int rc;
3966
3967		/* it's on raid; we need to parse /proc/mdstat and check all of the
3968		*raw* devices listed in there */
3969
3970		if (!strncmp(mdDev, "/dev/", 5))
3971		mdDev += 5;
3972
3973		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3974		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3975		strerror(errno));
3976		return 2;
3977		}
3978
3979		rc = read(fd, buf, sizeof(buf) - 1);
3980		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3981		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3982		strerror(errno));
3983		close(fd);
3984		return 2;
3985		}
3986		close(fd);
3987		buf[rc] = '\0';
3988
3989		chptr = buf;
3990		while (*chptr) {
3991		end = strchr(chptr, '\n');
3992		if (!end)
3993		break;
3994		*end = '\0';
3995
3996		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3997		chptr[strlen(mdDev)] == ' ') {
3998
3999		/* found the device */
4000		while (*chptr && *chptr != ':')
4001		chptr++;
4002		chptr++;
4003		while (*chptr && isspace(*chptr))
4004		chptr++;
4005
4006		/* skip the "active" bit */
4007		while (*chptr && !isspace(*chptr))
4008		chptr++;
4009		while (*chptr && isspace(*chptr))
4010		chptr++;
4011
4012		/* skip the raid level */
4013		while (*chptr && !isspace(*chptr))
4014		chptr++;
4015		while (*chptr && isspace(*chptr))
4016		chptr++;
4017
4018		/* everything else is partition stuff */
4019		while (*chptr) {
4020		chptr2 = chptr;
4021		while (*chptr2 && *chptr2 != '[')
4022		chptr2++;
4023		if (!*chptr2)
4024		break;
4025
4026		/* yank off the numbers at the end */
4027		chptr2--;
4028		while (isdigit(*chptr2) && chptr2 > chptr)
4029		chptr2--;
4030		chptr2++;
4031		*chptr2 = '\0';
4032
4033		/* Better, now we need the /dev/ back. We're
4034		* done with everything before this point, so
4035		* we can just put the /dev/ part there.
4036		* There will always be room. */
4037		memcpy(chptr - 5, "/dev/", 5);
4038		rc = checkDeviceBootloader(chptr - 5, boot);
4039		if (rc != 2) {
4040		return rc;
4041		}
4042
4043	fd = open(executable, O_RDONLY);	chptr = chptr2 + 1;
4044	if (fd < 0)	/* skip the [11] bit */
4045	/* this doesn't exist if grub hasn't been installed */	while (*chptr && !isspace(*chptr))
4046		chptr++;
4047		/* and move to the next one */
4048		while (*chptr && isspace(*chptr))
4049		chptr++;
4050		}
4051
4052		/*  we're good to go */
4053		return 2;
4054		}
4055
4056		chptr = end + 1;
4057		}
4058
4059		fprintf(stderr,
4060		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4061		mdDev);
4062	return 0;	return 0;
4063		}
4064
4065	if (read(fd, bootSect, 512) != 512) {	int checkForLilo(struct grubConfig *config)
4066	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
4067	executable, strerror(errno));	int fd;
4068	return 1;	unsigned char boot[512];
4069	}	struct singleLine *line;
4070	close(fd);
4071		for (line = config->theLines; line; line = line->next)
4072		if (line->type == LT_BOOT)
4073		break;
4074
4075		if (!line) {
4076		fprintf(stderr,
4077		_
4078		("grubby: no boot line found in lilo configuration\n"));
4079		return 1;
4080		}
4081
4082		if (line->numElements != 2)
4083		return 1;
4084
4085		fd = open("/boot/boot.b", O_RDONLY);
4086		if (fd < 0) {
4087		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4088		"/boot/boot.b", strerror(errno));
4089		return 1;
4090		}
4091
4092		if (read(fd, boot, 512) != 512) {
4093		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4094		"/boot/boot.b", strerror(errno));
4095		return 1;
4096		}
4097		close(fd);
4098
4099		if (!strncmp("/dev/md", line->elements[1].item, 7))
4100		return checkLiloOnRaid(line->elements[1].item, boot);
4101
4102	return checkDeviceBootloader(boot, bootSect);	return checkDeviceBootloader(line->elements[1].item, boot);
4103	}	}
4104
4105	int checkForYaboot(struct grubConfig * config) {	int checkForGrub2(struct grubConfig *config)
4106	/*	{
4107	* This is a simplistic check that we consider good enough for own puporses	if (!access("/etc/grub.d/", R_OK))
4108	*	return 2;
	* If we were to properly check if yaboot is *installed* we'd need to:
	* 1) get the system boot device (LT_BOOT)
	* 2) considering it's a raw filesystem, check if the yaboot binary matches
	*    the content on the boot device
	* 3) if not, copy the binary to a temporary file and run "addnote" on it
	* 4) check again if binary and boot device contents match
	*/
	if (!access("/etc/yaboot.conf", R_OK))
	return 2;
4109
4110	return 1;	return 1;
4111	}	}
4112
4113	int checkForElilo(struct grubConfig * config) {	int checkForGrub(struct grubConfig *config)
4114	if (!access("/etc/elilo.conf", R_OK))	{
4115	return 2;	int fd;
4116		unsigned char bootSect[512];
4117		char *boot;
4118		int onSuse = isSuseSystem();
4119
4120		if (onSuse) {
4121		if (parseSuseGrubConf(NULL, &boot))
4122		return 0;
4123		} else {
4124		if (parseSysconfigGrub(NULL, &boot))
4125		return 0;
4126		}
4127
4128		/* assume grub is not installed -- not an error condition */
4129		if (!boot)
4130		return 0;
4131
4132		fd = open("/boot/grub/stage1", O_RDONLY);
4133		if (fd < 0)
4134		/* this doesn't exist if grub hasn't been installed */
4135		return 0;
4136
4137		if (read(fd, bootSect, 512) != 512) {
4138		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4139		"/boot/grub/stage1", strerror(errno));
4140		close(fd);
4141		return 1;
4142		}
4143		close(fd);
4144
4145		/* The more elaborate checks do not work on SuSE. The checks done
4146		* seem to be reasonble (at least for now), so just return success
4147		*/
4148		if (onSuse)
4149		return 2;
4150
4151	return 1;	return checkDeviceBootloader(boot, bootSect);
4152	}	}
4153
4154	static char * getRootSpecifier(char * str) {	int checkForExtLinux(struct grubConfig *config)
4155	char * idx, * rootspec = NULL;	{
4156		int fd;
4157		unsigned char bootSect[512];
4158		char *boot;
4159		char executable[] = "/boot/extlinux/extlinux";
4160
4161	if (*str == '(') {	printf("entered: checkForExtLinux()\n");
4162	idx = rootspec = strdup(str);
4163	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (parseSysconfigGrub(NULL, &boot))
4164	*(++idx) = '\0';	return 0;
4165	}
4166	return rootspec;	/* assume grub is not installed -- not an error condition */
4167		if (!boot)
4168		return 0;
4169
4170		fd = open(executable, O_RDONLY);
4171		if (fd < 0)
4172		/* this doesn't exist if grub hasn't been installed */
4173		return 0;
4174
4175		if (read(fd, bootSect, 512) != 512) {
4176		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4177		executable, strerror(errno));
4178		return 1;
4179		}
4180		close(fd);
4181
4182		return checkDeviceBootloader(boot, bootSect);
4183	}	}
4184
4185	static char * getInitrdVal(struct grubConfig * config,	int checkForYaboot(struct grubConfig *config)
4186	const char * prefix, struct singleLine *tmplLine,	{
4187	const char * newKernelInitrd,	/*
4188	const char ** extraInitrds, int extraInitrdCount)	* This is a simplistic check that we consider good enough for own puporses
4189	{	*
4190	char *initrdVal, *end;	* If we were to properly check if yaboot is *installed* we'd need to:
4191	int i;	* 1) get the system boot device (LT_BOOT)
4192	size_t totalSize;	* 2) considering it's a raw filesystem, check if the yaboot binary matches
4193	size_t prefixLen;	*    the content on the boot device
4194	char separatorChar;	* 3) if not, copy the binary to a temporary file and run "addnote" on it
4195		* 4) check again if binary and boot device contents match
4196	prefixLen = strlen(prefix);	*/
4197	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	if (!access("/etc/yaboot.conf", R_OK))
4198		return 2;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4199
4200	initrdVal = end = malloc(totalSize);	return 1;
4201		}
4202
4203	end = stpcpy (end, newKernelInitrd + prefixLen);	int checkForElilo(struct grubConfig *config)
4204		{
4205		if (!access("/etc/elilo.conf", R_OK))
4206		return 2;
4207
4208	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	return 1;
4209	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
4210
4211	extraInitrd = extraInitrds[i] + prefixLen;	static char *getRootSpecifier(char *str)
4212	/* Don't add entries that are already there */	{
4213	if (tmplLine != NULL) {	char *idx, *rootspec = NULL;
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4214
4215	if (j != tmplLine->numElements)	if (*str == '(') {
4216	continue;	idx = rootspec = strdup(str);
4217		while (*idx && (*idx != ')') && (!isspace(*idx)))
4218		idx++;
4219		*(++idx) = '\0';
4220	}	}
4221		return rootspec;
4222		}
4223
4224	*end++ = separatorChar;	static char *getInitrdVal(struct grubConfig *config,
4225	end = stpcpy(end, extraInitrd);	const char *prefix, struct singleLine *tmplLine,
4226	}	const char *newKernelInitrd,
4227		const char **extraInitrds, int extraInitrdCount)
4228		{
4229		char *initrdVal, *end;
4230		int i;
4231		size_t totalSize;
4232		size_t prefixLen;
4233		char separatorChar;
4234
4235		prefixLen = strlen(prefix);
4236		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4237
4238		for (i = 0; i < extraInitrdCount; i++) {
4239		totalSize += sizeof(separatorChar);
4240		totalSize += strlen(extraInitrds[i]) - prefixLen;
4241		}
4242
4243		initrdVal = end = malloc(totalSize);
4244
4245		end = stpcpy(end, newKernelInitrd + prefixLen);
4246
4247		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4248		for (i = 0; i < extraInitrdCount; i++) {
4249		const char *extraInitrd;
4250		int j;
4251
4252		extraInitrd = extraInitrds[i] + prefixLen;
4253		/* Don't add entries that are already there */
4254		if (tmplLine != NULL) {
4255		for (j = 2; j < tmplLine->numElements; j++)
4256		if (strcmp
4257		(extraInitrd,
4258		tmplLine->elements[j].item) == 0)
4259		break;
4260
4261		if (j != tmplLine->numElements)
4262		continue;
4263		}
4264
4265	return initrdVal;	*end++ = separatorChar;
4266		end = stpcpy(end, extraInitrd);
4267		}
4268
4269		return initrdVal;
4270	}	}
4271
4272	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4273	const char * prefix,	const char *prefix,
4274	const char * newKernelPath, const char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4275	const char * newKernelArgs, const char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4276	const char ** extraInitrds, int extraInitrdCount,	const char **extraInitrds, int extraInitrdCount,
4277	const char * newMBKernel, const char * newMBKernelArgs) {	const char *newMBKernel, const char *newMBKernelArgs,
4278	struct singleEntry * new;	const char *newDevTreePath, int newIndex)
4279	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	{
4280	int needs;	struct singleEntry *new, *entry, *prev = NULL;
4281	char * chptr;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4282		int needs;
4283	if (!newKernelPath) return 0;	char *indexs;
4284		char *chptr;
4285	/* if the newKernelTitle is too long silently munge it into something	int rc;
4286	* we can live with. truncating is first check, then we'll just mess with
4287	* it until it looks better */	if (!newKernelPath)
4288	if (config->cfi->maxTitleLength &&	return 0;
4289
4290		rc = asprintf(&indexs, "%d", newIndex);
4291		if (rc < 0)
4292		return 1;
4293
4294		/* if the newKernelTitle is too long silently munge it into something
4295		* we can live with. truncating is first check, then we'll just mess with
4296		* it until it looks better */
4297		if (config->cfi->maxTitleLength &&
4298	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4299	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4300	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4301	int i = 1;	int i = 1;
4302
4303		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4304		newKernelTitle);
4305		while (findEntryByPath(config, buf, NULL, NULL)) {
4306		sprintf(numBuf, "%d", i++);
4307		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4308		}
4309
4310	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	newKernelTitle = buf + 6;
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4311	}	}
4312
4313	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4314	}	new->skip = 0;
4315		new->multiboot = 0;
4316		new->lines = NULL;
4317		entry = config->entries;
4318		for (unsigned int i = 0; i < newIndex; i++) {
4319		if (!entry)
4320		break;
4321		prev = entry;
4322		entry = entry->next;
4323		}
4324		new->next = entry;
4325
4326	new = malloc(sizeof(*new));	if (prev)
4327	new->skip = 0;	prev->next = new;
4328	new->multiboot = 0;	else
4329	new->next = config->entries;	config->entries = new;
	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;
	}
4330
4331	if (template) {	/* copy/update from the template */
4332	for (masterLine = template->lines;	needs = NEED_KERNEL | NEED_TITLE;
4333	masterLine && (tmplLine = lineDup(masterLine));	if (newKernelInitrd)
4334	lineFree(tmplLine), masterLine = masterLine->next)	needs |= NEED_INITRD;
4335	{	if (newMBKernel) {
4336	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	needs |= NEED_MB;
4337		new->multiboot = 1;
4338	/* skip comments */	}
4339	chptr = tmplLine->indent;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4340	while (*chptr && isspace(*chptr)) chptr++;	needs |= NEED_DEVTREE;
4341	if (*chptr == '#') continue;
4342		if (template) {
4343	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {	for (masterLine = template->lines;
4344	if (!template->multiboot && (needs & NEED_MB)) {	masterLine && (tmplLine = lineDup(masterLine));
4345	/* it's not a multiboot template and this is the kernel	lineFree(tmplLine), masterLine = masterLine->next) {
4346	* line.  Try to be intelligent about inserting the	dbgPrintf("addNewKernel processing %d\n",
4347	* hypervisor at the same time.	tmplLine->type);
4348	*/
4349	if (config->cfi->mbHyperFirst) {	/* skip comments */
4350	/* insert the hypervisor first */	chptr = tmplLine->indent;
4351	newLine = addLine(new, config->cfi, LT_HYPER,	while (*chptr && isspace(*chptr))
4352	tmplLine->indent,	chptr++;
4353	newMBKernel + strlen(prefix));	if (*chptr == '#')
4354	/* set up for adding the kernel line */	continue;
4355	free(tmplLine->indent);
4356	tmplLine->indent = strdup(config->secondaryIndent);	if (iskernel(tmplLine->type)
4357	needs &= ~NEED_MB;	&& tmplLine->numElements >= 2) {
4358	}	if (!template->multiboot && (needs & NEED_MB)) {
4359	if (needs & NEED_KERNEL) {	/* it's not a multiboot template and
4360	/* use addLineTmpl to preserve line elements,	* this is the kernel line.  Try to
4361	* otherwise we could just call addLine.  Unfortunately	* be intelligent about inserting the
4362	* this means making some changes to the template	* hypervisor at the same time.
4363	* such as the indent change above and the type	*/
4364	* change below.	if (config->cfi->mbHyperFirst) {
4365	*/	/* insert the hypervisor first */
4366	struct keywordTypes * mbm_kw =	newLine =
4367	getKeywordByType(LT_MBMODULE, config->cfi);	addLine(new, config->cfi,
4368	if (mbm_kw) {	LT_HYPER,
4369	tmplLine->type = LT_MBMODULE;	tmplLine->indent,
4370	free(tmplLine->elements[0].item);	newMBKernel +
4371	tmplLine->elements[0].item = strdup(mbm_kw->key);	strlen(prefix));
4372	}	/* set up for adding the
4373	newLine = addLineTmpl(new, tmplLine, newLine,	* kernel line */
4374	newKernelPath + strlen(prefix), config->cfi);	free(tmplLine->indent);
4375	needs &= ~NEED_KERNEL;	tmplLine->indent =
4376	}	strdup(config->
4377	if (needs & NEED_MB) { /* !mbHyperFirst */	secondaryIndent);
4378	newLine = addLine(new, config->cfi, LT_HYPER,	needs &= ~NEED_MB;
4379	config->secondaryIndent,	}
4380	newMBKernel + strlen(prefix));	if (needs & NEED_KERNEL) {
4381	needs &= ~NEED_MB;	/* use addLineTmpl to
4382	}	* preserve line elements,
4383	} else if (needs & NEED_KERNEL) {	* otherwise we could just
4384	newLine = addLineTmpl(new, tmplLine, newLine,	* call addLine.
4385	newKernelPath + strlen(prefix), config->cfi);	* Unfortunately this means
4386	needs &= ~NEED_KERNEL;	* making some changes to the
4387	}	* template such as the
4388		* indent change above and
4389	} else if (tmplLine->type == LT_HYPER &&	* the type change below.
4390	tmplLine->numElements >= 2) {	*/
4391	if (needs & NEED_MB) {	struct keywordTypes *mbm_kw =
4392	newLine = addLineTmpl(new, tmplLine, newLine,	getKeywordByType
4393	newMBKernel + strlen(prefix), config->cfi);	(LT_MBMODULE, config->cfi);
4394	needs &= ~NEED_MB;	if (mbm_kw) {
4395	}	tmplLine->type =
4396		LT_MBMODULE;
4397	} else if (tmplLine->type == LT_MBMODULE &&	free(tmplLine->
4398	tmplLine->numElements >= 2) {	elements[0].item);
4399	if (new->multiboot) {	tmplLine->elements[0].
4400	if (needs & NEED_KERNEL) {	item =
4401	newLine = addLineTmpl(new, tmplLine, newLine,	strdup(mbm_kw->key);
4402	newKernelPath +	}
4403	strlen(prefix), config->cfi);	newLine =
4404	needs &= ~NEED_KERNEL;	addLineTmpl(new, tmplLine,
4405	} else if (config->cfi->mbInitRdIsModule &&	newLine,
4406	(needs & NEED_INITRD)) {	newKernelPath +
4407	char *initrdVal;	strlen(prefix),
4408	initrdVal = getInitrdVal(config, prefix, tmplLine,	config->cfi);
4409	newKernelInitrd, extraInitrds,	needs &= ~NEED_KERNEL;
4410	extraInitrdCount);	}
4411	newLine = addLineTmpl(new, tmplLine, newLine,	if (needs & NEED_MB) { /* !mbHyperFirst */
4412	initrdVal, config->cfi);	newLine =
4413	free(initrdVal);	addLine(new, config->cfi,
4414	needs &= ~NEED_INITRD;	LT_HYPER,
4415	}	config->
4416	} else if (needs & NEED_KERNEL) {	secondaryIndent,
4417	/* template is multi but new is not,	newMBKernel +
4418	* insert the kernel in the first module slot	strlen(prefix));
4419	*/	needs &= ~NEED_MB;
4420	tmplLine->type = preferredLineType(LT_KERNEL, config->cfi);	}
4421	free(tmplLine->elements[0].item);	} else if (needs & NEED_KERNEL) {
4422	tmplLine->elements[0].item =	newLine =
4423	strdup(getKeywordByType(tmplLine->type,	addLineTmpl(new, tmplLine, newLine,
4424	config->cfi)->key);	newKernelPath +
4425	newLine = addLineTmpl(new, tmplLine, newLine,	strlen(prefix),
4426	newKernelPath + strlen(prefix),	config->cfi);
4427	config->cfi);	needs &= ~NEED_KERNEL;
4428	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);
	}
	}
4429
4430	} else {	} else if (tmplLine->type == LT_HYPER &&
4431	/* don't have a template, so start the entry with the	tmplLine->numElements >= 2) {
4432	* appropriate starting line	if (needs & NEED_MB) {
4433	*/	newLine =
4434	switch (config->cfi->entryStart) {	addLineTmpl(new, tmplLine, newLine,
4435	case LT_KERNEL:	newMBKernel +
4436	case LT_KERNEL_EFI:	strlen(prefix),
4437	if (new->multiboot && config->cfi->mbHyperFirst) {	config->cfi);
4438	/* fall through to LT_HYPER */	needs &= ~NEED_MB;
4439	} else {	}
4440	newLine = addLine(new, config->cfi,
4441	preferredLineType(LT_KERNEL, config->cfi),	} else if (tmplLine->type == LT_MBMODULE &&
4442	config->primaryIndent,	tmplLine->numElements >= 2) {
4443	newKernelPath + strlen(prefix));	if (new->multiboot) {
4444	needs &= ~NEED_KERNEL;	if (needs & NEED_KERNEL) {
4445	break;	newLine =
4446		addLineTmpl(new, tmplLine,
4447		newLine,
4448		newKernelPath +
4449		strlen(prefix),
4450		config->cfi);
4451		needs &= ~NEED_KERNEL;
4452		} else if (config->cfi->mbInitRdIsModule
4453		&& (needs & NEED_INITRD)) {
4454		char *initrdVal;
4455		initrdVal =
4456		getInitrdVal(config, prefix,
4457		tmplLine,
4458		newKernelInitrd,
4459		extraInitrds,
4460		extraInitrdCount);
4461		newLine =
4462		addLineTmpl(new, tmplLine,
4463		newLine,
4464		initrdVal,
4465		config->cfi);
4466		free(initrdVal);
4467		needs &= ~NEED_INITRD;
4468		}
4469		} else if (needs & NEED_KERNEL) {
4470		/* template is multi but new is not,
4471		* insert the kernel in the first
4472		* module slot
4473		*/
4474		tmplLine->type =
4475		preferredLineType(LT_KERNEL,
4476		config->cfi);
4477		free(tmplLine->elements[0].item);
4478		tmplLine->elements[0].item =
4479		strdup(getKeywordByType
4480		(tmplLine->type,
4481		config->cfi)->key);
4482		newLine =
4483		addLineTmpl(new, tmplLine, newLine,
4484		newKernelPath +
4485		strlen(prefix),
4486		config->cfi);
4487		needs &= ~NEED_KERNEL;
4488		} else if (needs & NEED_INITRD) {
4489		char *initrdVal;
4490		/* template is multi but new is not,
4491		* insert the initrd in the second
4492		* module slot
4493		*/
4494		tmplLine->type =
4495		preferredLineType(LT_INITRD,
4496		config->cfi);
4497		free(tmplLine->elements[0].item);
4498		tmplLine->elements[0].item =
4499		strdup(getKeywordByType
4500		(tmplLine->type,
4501		config->cfi)->key);
4502		initrdVal =
4503		getInitrdVal(config, prefix,
4504		tmplLine,
4505		newKernelInitrd,
4506		extraInitrds,
4507		extraInitrdCount);
4508		newLine =
4509		addLineTmpl(new, tmplLine, newLine,
4510		initrdVal, config->cfi);
4511		free(initrdVal);
4512		needs &= ~NEED_INITRD;
4513		}
4514
4515		} else if (isinitrd(tmplLine->type)
4516		&& tmplLine->numElements >= 2) {
4517		if (needs & NEED_INITRD && new->multiboot
4518		&& !template->multiboot
4519		&& config->cfi->mbInitRdIsModule) {
4520		/* make sure we don't insert the
4521		* module initrd before the module
4522		* kernel... if we don't do it here,
4523		* it will be inserted following the
4524		* template.
4525		*/
4526		if (!needs & NEED_KERNEL) {
4527		char *initrdVal;
4528
4529		initrdVal =
4530		getInitrdVal(config, prefix,
4531		tmplLine,
4532		newKernelInitrd,
4533		extraInitrds,
4534		extraInitrdCount);
4535		newLine =
4536		addLine(new, config->cfi,
4537		LT_MBMODULE,
4538		config->
4539		secondaryIndent,
4540		initrdVal);
4541		free(initrdVal);
4542		needs &= ~NEED_INITRD;
4543		}
4544		} else if (needs & NEED_INITRD) {
4545		char *initrdVal;
4546		initrdVal =
4547		getInitrdVal(config, prefix,
4548		tmplLine,
4549		newKernelInitrd,
4550		extraInitrds,
4551		extraInitrdCount);
4552		newLine =
4553		addLineTmpl(new, tmplLine, newLine,
4554		initrdVal, config->cfi);
4555		free(initrdVal);
4556		needs &= ~NEED_INITRD;
4557		}
4558
4559		} else if (tmplLine->type == LT_MENUENTRY &&
4560		(needs & NEED_TITLE)) {
4561		requote(tmplLine, config->cfi);
4562		char *nkt = malloc(strlen(newKernelTitle) + 3);
4563		strcpy(nkt, "'");
4564		strcat(nkt, newKernelTitle);
4565		strcat(nkt, "'");
4566		newLine =
4567		addLineTmpl(new, tmplLine, newLine, nkt,
4568		config->cfi);
4569		free(nkt);
4570		needs &= ~NEED_TITLE;
4571		} else if (tmplLine->type == LT_TITLE &&
4572		(needs & NEED_TITLE)) {
4573		if (tmplLine->numElements >= 2) {
4574		newLine =
4575		addLineTmpl(new, tmplLine, newLine,
4576		newKernelTitle,
4577		config->cfi);
4578		needs &= ~NEED_TITLE;
4579		} else if (tmplLine->numElements == 1 &&
4580		config->cfi->titleBracketed) {
4581		/* addLineTmpl doesn't handle
4582		* titleBracketed */
4583		newLine =
4584		addLine(new, config->cfi, LT_TITLE,
4585		tmplLine->indent,
4586		newKernelTitle);
4587		needs &= ~NEED_TITLE;
4588		}
4589		} else if (tmplLine->type == LT_ECHO) {
4590		requote(tmplLine, config->cfi);
4591		static const char *prefix = "'Loading ";
4592		if (tmplLine->numElements > 1 &&
4593		strstr(tmplLine->elements[1].item, prefix)
4594		&& masterLine->next
4595		&& iskernel(masterLine->next->type)) {
4596		char *newTitle =
4597		malloc(strlen(prefix) +
4598		strlen(newKernelTitle) + 2);
4599
4600		strcpy(newTitle, prefix);
4601		strcat(newTitle, newKernelTitle);
4602		strcat(newTitle, "'");
4603		newLine =
4604		addLine(new, config->cfi, LT_ECHO,
4605		tmplLine->indent, newTitle);
4606		free(newTitle);
4607		} else {
4608		/* pass through other lines from the
4609		* template */
4610		newLine =
4611		addLineTmpl(new, tmplLine, newLine,
4612		NULL, config->cfi);
4613		}
4614		} else if (tmplLine->type == LT_DEVTREE &&
4615		tmplLine->numElements == 2
4616		&& newDevTreePath) {
4617		newLine =
4618		addLineTmpl(new, tmplLine, newLine,
4619		newDevTreePath + strlen(prefix),
4620		config->cfi);
4621		needs &= ~NEED_DEVTREE;
4622		} else if (tmplLine->type == LT_ENTRY_END
4623		&& needs & NEED_DEVTREE) {
4624		const char *ndtp = newDevTreePath;
4625		if (!strncmp
4626		(newDevTreePath, prefix, strlen(prefix)))
4627		ndtp += strlen(prefix);
4628		newLine = addLine(new, config->cfi, LT_DEVTREE,
4629		config->secondaryIndent,
4630		ndtp);
4631		needs &= ~NEED_DEVTREE;
4632		newLine =
4633		addLineTmpl(new, tmplLine, newLine, NULL,
4634		config->cfi);
4635		} else {
4636		/* pass through other lines from the template */
4637		newLine =
4638		addLineTmpl(new, tmplLine, newLine, NULL,
4639		config->cfi);
4640		}
4641	}	}
4642
4643	case LT_HYPER:	} else {
4644	newLine = addLine(new, config->cfi, LT_HYPER,	/* don't have a template, so start the entry with the
4645	config->primaryIndent,	* appropriate starting line
4646	newMBKernel + strlen(prefix));	*/
4647	needs &= ~NEED_MB;	switch (config->cfi->entryStart) {
4648	break;	case LT_KERNEL:
4649		case LT_KERNEL_EFI:
4650		case LT_KERNEL_16:
4651		if (new->multiboot && config->cfi->mbHyperFirst) {
4652		/* fall through to LT_HYPER */
4653		} else {
4654		newLine = addLine(new, config->cfi,
4655		preferredLineType(LT_KERNEL,
4656		config->
4657		cfi),
4658		config->primaryIndent,
4659		newKernelPath +
4660		strlen(prefix));
4661		needs &= ~NEED_KERNEL;
4662		break;
4663		}
4664
4665	case LT_MENUENTRY: {	case LT_HYPER:
4666	char *nkt = malloc(strlen(newKernelTitle)+3);	newLine = addLine(new, config->cfi, LT_HYPER,
4667	strcpy(nkt, "'");	config->primaryIndent,
4668	strcat(nkt, newKernelTitle);	newMBKernel + strlen(prefix));
4669	strcat(nkt, "'");	needs &= ~NEED_MB;
4670	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
4671	config->primaryIndent, nkt);
4672	free(nkt);	case LT_MENUENTRY:{
4673	needs &= ~NEED_TITLE;	char *nkt = malloc(strlen(newKernelTitle) + 3);
4674	needs |= NEED_END;	strcpy(nkt, "'");
4675	break;	strcat(nkt, newKernelTitle);
4676	}	strcat(nkt, "'");
4677	case LT_TITLE:	newLine =
4678	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	addLine(new, config->cfi, LT_MENUENTRY,
4679	char * templabel;	config->primaryIndent, nkt);
4680	int x = 0, y = 0;	free(nkt);
4681		needs &= ~NEED_TITLE;
4682	templabel = strdup(newKernelTitle);	needs |= NEED_END;
4683	while( templabel[x]){	break;
4684	if( templabel[x] == ' ' ){	}
4685	y = x;	case LT_TITLE:
4686	while( templabel[y] ){	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4687	templabel[y] = templabel[y+1];	char *templabel;
4688	y++;	int x = 0, y = 0;
4689
4690		templabel = strdup(newKernelTitle);
4691		while (templabel[x]) {
4692		if (templabel[x] == ' ') {
4693		y = x;
4694		while (templabel[y]) {
4695		templabel[y] =
4696		templabel[y + 1];
4697		y++;
4698		}
4699	}	}
4700		x++;
4701	}	}
4702	x++;	newLine = addLine(new, config->cfi, LT_TITLE,
4703		config->primaryIndent,
4704		templabel);
4705		free(templabel);
4706		} else {
4707		newLine = addLine(new, config->cfi, LT_TITLE,
4708		config->primaryIndent,
4709		newKernelTitle);
4710	}	}
4711	newLine = addLine(new, config->cfi, LT_TITLE,	needs &= ~NEED_TITLE;
4712	config->primaryIndent, templabel);	break;
4713	free(templabel);
4714	}else{	default:
4715	newLine = addLine(new, config->cfi, LT_TITLE,	abort();
	config->primaryIndent, newKernelTitle);
4716	}	}
4717	needs &= ~NEED_TITLE;	}
	break;
4718
4719	default:	struct singleLine *endLine = NULL;
4720	abort();	endLine = getLineByType(LT_ENTRY_END, new->lines);
4721		if (endLine) {
4722		removeLine(new, endLine);
4723		needs |= NEED_END;
4724	}	}
	}
4725
4726	/* add the remainder of the lines, i.e. those that either	/* add the remainder of the lines, i.e. those that either
4727	* weren't present in the template, or in the case of no template,	* weren't present in the template, or in the case of no template,
4728	* all the lines following the entryStart.	* all the lines following the entryStart.
4729	*/	*/
4730	if (needs & NEED_TITLE) {	if (needs & NEED_TITLE) {
4731	newLine = addLine(new, config->cfi, LT_TITLE,	newLine = addLine(new, config->cfi, LT_TITLE,
4732	config->secondaryIndent,	config->secondaryIndent, newKernelTitle);
4733	newKernelTitle);	needs &= ~NEED_TITLE;
4734	needs &= ~NEED_TITLE;	}
4735	}	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4736	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {	newLine = addLine(new, config->cfi, LT_HYPER,
4737	newLine = addLine(new, config->cfi, LT_HYPER,	config->secondaryIndent,
4738	config->secondaryIndent,	newMBKernel + strlen(prefix));
4739	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4740	needs &= ~NEED_MB;	}
4741	}	if (needs & NEED_KERNEL) {
4742	if (needs & NEED_KERNEL) {	newLine = addLine(new, config->cfi,
4743	newLine = addLine(new, config->cfi,	(new->multiboot
4744	(new->multiboot && getKeywordByType(LT_MBMODULE,	&& getKeywordByType(LT_MBMODULE,
4745	config->cfi))	config->cfi))
4746	? LT_MBMODULE	? LT_MBMODULE : preferredLineType(LT_KERNEL,
4747	: preferredLineType(LT_KERNEL, config->cfi),	config->
4748	config->secondaryIndent,	cfi),
4749	newKernelPath + strlen(prefix));	config->secondaryIndent,
4750	needs &= ~NEED_KERNEL;	newKernelPath + strlen(prefix));
4751	}	needs &= ~NEED_KERNEL;
4752	if (needs & NEED_MB) {	}
4753	newLine = addLine(new, config->cfi, LT_HYPER,	if (needs & NEED_MB) {
4754	config->secondaryIndent,	newLine = addLine(new, config->cfi, LT_HYPER,
4755	newMBKernel + strlen(prefix));	config->secondaryIndent,
4756	needs &= ~NEED_MB;	newMBKernel + strlen(prefix));
4757	}	needs &= ~NEED_MB;
4758	if (needs & NEED_INITRD) {	}
4759	char *initrdVal;	if (needs & NEED_INITRD) {
4760	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);	char *initrdVal;
4761	newLine = addLine(new, config->cfi,	initrdVal =
4762	(new->multiboot && getKeywordByType(LT_MBMODULE,	getInitrdVal(config, prefix, NULL, newKernelInitrd,
4763	config->cfi))	extraInitrds, extraInitrdCount);
4764	? LT_MBMODULE	newLine =
4765	: preferredLineType(LT_INITRD, config->cfi),	addLine(new, config->cfi,
4766	config->secondaryIndent,	(new->multiboot
4767	initrdVal);	&& getKeywordByType(LT_MBMODULE, config->cfi))
4768	free(initrdVal);	? LT_MBMODULE : preferredLineType(LT_INITRD,
4769	needs &= ~NEED_INITRD;	config->cfi),
4770	}	config->secondaryIndent, initrdVal);
4771	if (needs & NEED_END) {	free(initrdVal);
4772	newLine = addLine(new, config->cfi, LT_ENTRY_END,	needs &= ~NEED_INITRD;
4773	config->secondaryIndent, NULL);	}
4774	needs &= ~NEED_END;	if (needs & NEED_DEVTREE) {
4775	}	newLine = addLine(new, config->cfi, LT_DEVTREE,
4776		config->secondaryIndent, newDevTreePath);
4777		needs &= ~NEED_DEVTREE;
4778		}
4779
4780		/* NEEDS_END must be last on bootloaders that need it... */
4781		if (needs & NEED_END) {
4782		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4783		config->secondaryIndent, NULL);
4784		needs &= ~NEED_END;
4785		}
4786
4787	if (needs) {	if (needs) {
4788	printf(_("grubby: needs=%d, aborting\n"), needs);	printf(_("grubby: needs=%d, aborting\n"), needs);
4789	abort();	abort();
4790	}	}
4791
4792	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4793	newMBKernelArgs, NULL)) return 1;	newMBKernelArgs, NULL)) {
4794		config->isModified = 1;
4795		return 1;
4796		}
4797
4798	return 0;	return 0;
4799	}	}
4800
4801	static void traceback(int signum)	int main(int argc, const char **argv)
4802	{	{
4803	void *array[40];	poptContext optCon;
4804	size_t size;	const char *grubConfig = NULL;
4805		char *outputFile = NULL;
4806	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4807	memset(array, '\0', sizeof (array));	int flags = 0;
4808	size = backtrace(array, 40);	int badImageOkay = 0;
4809		int configureGrub2 = 0;
4810	fprintf(stderr, "grubby received SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4811	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4812	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4813	exit(1);	int bootloaderProbe = 0;
4814	}	int extraInitrdCount = 0;
4815		char *updateKernelPath = NULL;
4816	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4817	poptContext optCon;	char *removeKernelPath = NULL;
4818	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4819	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4820	int arg = 0;	char *newKernelTitle = NULL;
4821	int flags = 0;	char *newDevTreePath = NULL;
4822	int badImageOkay = 0;	char *newMBKernel = NULL;
4823	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4824	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4825	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4826	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4827	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4828	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4829	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4830	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4831	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4832	char * newKernelArgs = NULL;	char *envPath = NULL;
4833	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4834	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4835	char * newKernelVersion = NULL;	struct grubConfig *config;
4836	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4837	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4838	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4839	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4840	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4841	char * defaultKernel = NULL;	int defaultIndex = -1;
4842	char * removeArgs = NULL;	struct poptOption options[] = {
4843	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4844	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4845	char * envPath = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4846	const char * chptr = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4847	struct configFileInfo * cfi = NULL;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4848	struct grubConfig * config;	_("default arguments for the new kernel or new arguments for "
4849	struct singleEntry * template = NULL;	"kernel being updated"), _("args")},
4850	int copyDefault = 0, makeDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4851	int displayDefault = 0;	_("default arguments for the new multiboot kernel or "
4852	int displayDefaultIndex = 0;	"new arguments for multiboot kernel being updated"), NULL},
4853	int displayDefaultTitle = 0;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4854	int defaultIndex = -1;	_
4855	struct poptOption options[] = {	("don't sanity check images in boot entries (for testing only)"),
4856	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	NULL},
4857	_("add an entry for the specified kernel"), _("kernel-path") },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4858	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	_
4859	_("add an entry for the specified multiboot kernel"), NULL },	("filesystem which contains /boot directory (for testing only)"),
4860	{ "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") },
4861	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4862	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4863	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4864	#endif	#endif
4865	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4866	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4867	_("path") },	_("path")},
4868	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4869	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4870	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4871	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4872	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4873	"template"), NULL },	"template"), NULL},
4874	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4875	_("print debugging information for failures") },	_("print debugging information for failures")},
4876	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4877	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4878	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4879	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4880	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4881	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4882	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4883	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4884	{ "efi", 0, POPT_ARG_NONE, &isEfi, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4885	_("force grub2 stanzas to use efi") },	_("device tree directory for new stanza"), _("dtb-path")},
4886	{ "env", 0, POPT_ARG_STRING, &envPath, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4887	_("path for environment data"),	_("configure elilo bootloader")},
4888	_("path") },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4889	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	_("force grub2 stanzas to use efi")},
4890	_("configure extlinux bootloader (from syslinux)") },	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4891	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	_("path for environment data"),
4892	_("configure grub bootloader") },	_("path")},
4893	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4894	_("configure grub2 bootloader") },	_("configure extlinux bootloader (from syslinux)")},
4895	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4896	_("display boot information for specified kernel"),	_("configure grub bootloader")},
4897	_("kernel-path") },	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4898	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("configure grub2 bootloader")},
4899	_("initrd image for the new kernel"), _("initrd-path") },	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4900	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	_("display boot information for specified kernel"),
4901	_("auxiliary initrd image for things other than the new kernel"), _("initrd-path") },	_("kernel-path")},
4902	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4903	_("configure lilo bootloader") },	_("initrd image for the new kernel"), _("initrd-path")},
4904	{ "make-default", 0, 0, &makeDefault, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4905	_("make the newly added entry the default boot entry"), NULL },	_
4906	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	("auxiliary initrd image for things other than the new kernel"),
4907	_("path to output updated config file (\"-\" for stdout)"),	_("initrd-path")},
4908	_("path") },	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4909	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("configure lilo bootloader")},
4910	_("remove kernel arguments"), NULL },	{"make-default", 0, 0, &makeDefault, 0,
4911	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("make the newly added entry the default boot entry"), NULL},
4912	_("remove multiboot kernel arguments"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4913	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("path to output updated config file (\"-\" for stdout)"),
4914	_("remove all entries for the specified kernel"),	_("path")},
4915	_("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4916	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("remove kernel arguments"), NULL},
4917	_("remove all entries for the specified multiboot kernel"), NULL },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4918	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("remove multiboot kernel arguments"), NULL},
4919	_("make the first entry referencing the specified kernel "	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4920	"the default"), _("kernel-path") },	_("remove all entries for the specified kernel"),
4921	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("kernel-path")},
4922	_("make the given entry index the default entry"),	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4923	_("entry-index") },	_("remove all entries for the specified multiboot kernel"),
4924	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	NULL},
4925	_("configure silo bootloader") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4926	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("make the first entry referencing the specified kernel "
4927	_("title to use for the new kernel entry"), _("entry-title") },	"the default"), _("kernel-path")},
4928	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4929	_("updated information for the specified kernel"),	_("make the given entry index the default entry"),
4930	_("kernel-path") },	_("entry-index")},
4931	{ "version", 'v', 0, NULL, 'v',	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4932	_("print the version of this program and exit"), NULL },	_("use the given index when creating a new entry"),
4933	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("entry-index")},
4934	_("configure yaboot bootloader") },	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4935	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("configure silo bootloader")},
4936	_("configure zipl bootloader") },	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4937	POPT_AUTOHELP	_("title to use for the new kernel entry"), _("entry-title")},
4938	{ 0, 0, 0, 0, 0 }	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4939	};	_("updated information for the specified kernel"),
4940		_("kernel-path")},
4941	useextlinuxmenu=0;	{"version", 'v', 0, NULL, 'v',
4942		_("print the version of this program and exit"), NULL},
4943	signal(SIGSEGV, traceback);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4944		_("configure yaboot bootloader")},
4945	int i = 0;	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4946	for (int j = 1; j < argc; j++)	_("configure zipl bootloader")},
4947	i += strlen(argv[j]) + 1;	POPT_AUTOHELP {0, 0, 0, 0, 0}
4948	saved_command_line = malloc(i);	};
4949	if (!saved_command_line) {
4950	fprintf(stderr, "grubby: %m\n");	useextlinuxmenu = 0;
4951	exit(1);
4952	}	int i = 0;
4953	saved_command_line[0] = '\0';	for (int j = 1; j < argc; j++)
4954	for (int j = 1; j < argc; j++) {	i += strlen(argv[j]) + 1;
4955	strcat(saved_command_line, argv[j]);	saved_command_line = malloc(i);
4956	strncat(saved_command_line, j == argc -1 ? "" : " ", 1);	if (!saved_command_line) {
4957	}	fprintf(stderr, "grubby: %m\n");
4958		exit(1);
4959	optCon = poptGetContext("grubby", argc, argv, options, 0);	}
4960	poptReadDefaultConfig(optCon, 1);	saved_command_line[0] = '\0';
4961		for (int j = 1; j < argc; j++) {
4962		strcat(saved_command_line, argv[j]);
4963		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4964		}
4965
4966		optCon = poptGetContext("grubby", argc, argv, options, 0);
4967		poptReadDefaultConfig(optCon, 1);
4968
4969		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4970		switch (arg) {
4971		case 'v':
4972		printf("grubby version %s\n", VERSION);
4973		exit(0);
4974		break;
4975		case 'i':
4976		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4977		extraInitrds[extraInitrdCount++] =
4978		strdup(poptGetOptArg(optCon));
4979		} else {
4980		fprintf(stderr,
4981		_
4982		("grubby: extra initrd maximum is %d\n"),
4983		extraInitrdCount);
4984		return 1;
4985		}
4986		break;
4987		}
4988		}
4989
4990	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (arg < -1) {
4991	switch (arg) {	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4992	case 'v':	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4993	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);
4994	return 1;	return 1;
	}
	break;
4995	}	}
	}
4996
4997	if (arg < -1) {	if ((chptr = poptGetArg(optCon))) {
4998	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4999	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	return 1;
5000	poptStrerror(arg));	}
	return 1;
	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
	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;
	}
5001
5002	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5003	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5004	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5005	else	fprintf(stderr,
5006	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5007	cfi = &eliloConfigType;	return 1;
5008	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5009	cfi = &yabootConfigType;	fprintf(stderr,
5010	#elif __sparc__	_
5011	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5012	#elif __s390__	return 1;
5013	cfi = &ziplConfigType;	} else if (configureGrub2) {
5014	#elif __s390x__	cfi = &grub2ConfigType;
5015	cfi = &ziplConfigtype;	if (envPath)
5016	#else	cfi->envFile = envPath;
5017	cfi = &grubConfigType;	} else if (configureLilo) {
5018	#endif	cfi = &liloConfigType;
5019	}	} else if (configureGrub) {
5020		cfi = &grubConfigType;
5021		} else if (configureELilo) {
5022		cfi = &eliloConfigType;
5023		} else if (configureYaboot) {
5024		cfi = &yabootConfigType;
5025		} else if (configureSilo) {
5026		cfi = &siloConfigType;
5027		} else if (configureZipl) {
5028		cfi = &ziplConfigType;
5029		} else if (configureExtLinux) {
5030		cfi = &extlinuxConfigType;
5031		useextlinuxmenu = 1;
5032		}
5033
5034		if (!cfi) {
5035		if (grub2FindConfig(&grub2ConfigType)) {
5036		cfi = &grub2ConfigType;
5037		if (envPath)
5038		cfi->envFile = envPath;
5039		} else
5040		#ifdef __ia64__
5041		cfi = &eliloConfigType;
5042		#elif __powerpc__
5043		cfi = &yabootConfigType;
5044		#elif __sparc__
5045		cfi = &siloConfigType;
5046		#elif __s390__
5047		cfi = &ziplConfigType;
5048		#elif __s390x__
5049		cfi = &ziplConfigtype;
5050		#else
5051		cfi = &grubConfigType;
5052		#endif
5053		}
5054
5055	if (!grubConfig) {	if (!grubConfig) {
5056	if (cfi->findConfig)	if (cfi->findConfig)
5057	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5058	if (!grubConfig)	if (!grubConfig)
5059	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5060	}	}
5061
5062	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5063	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5064	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
5065	(defaultIndex >= 0))) {	|| displayDefaultTitle
5066	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
5067		fprintf(stderr,
5068		_("grubby: --bootloader-probe may not be used with "
5069	"specified option"));	"specified option"));
5070	return 1;	return 1;
5071	}	}
5072
5073	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5074	removeKernelPath)) {	removeKernelPath)) {
5075	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5076	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5077	return 1;	return 1;
5078	}	}
5079
5080	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5081	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5082	return 1;	return 1;
5083	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5084	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5085	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5086	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5087	return 1;	return 1;
5088	}	}
5089
5090	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5091	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5092	"not be used together"));	"not be used together"));
5093	return 1;	return 1;
5094	}	}
5095
5096	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5097	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5098	"may not be used together\n"));	"may not be used together\n"));
5099	return 1;	return 1;
5100	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5101	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5102	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5103	return 1;	_("grubby: cannot make removed kernel the default\n"));
5104	} else if (defaultKernel && newKernelPath &&	return 1;
5105	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5106	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5107	defaultKernel = NULL;	makeDefault = 1;
5108	}	defaultKernel = NULL;
5109	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5110	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5111		_("grubby: --set-default and --set-default-index "
5112	"may not be used together\n"));	"may not be used together\n"));
5113	return 1;	return 1;
5114	}	}
5115
5116	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5117	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5118	"is used\n"));	_("grubby: output file must be specified if stdin "
5119	return 1;	"is used\n"));
5120	}	return 1;
5121		}
5122
5123	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5124	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5125	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5126	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5127	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5128	return 1;	return 1;
5129	}	}
5130
5131	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5132
5133	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5134	if (!bootPrefix) {	if (!bootPrefix) {
5135	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5136	if (!bootPrefix) return 1;	if (!bootPrefix)
5137		return 1;
5138		} else {
5139		/* this shouldn't end with a / */
5140		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5141		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5142		}
5143	} else {	} else {
5144	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5145	}	}
	} else {
	bootPrefix = "";
	}
5146
5147	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5148	extraInitrdCount > 0) {	fprintf(stderr,
5149	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5150	return 1;	cfi->defaultConfig);
5151	}	return 1;
5152		}
5153
5154	if (bootloaderProbe) {	if (bootloaderProbe) {
5155	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;
5156	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5157
5158	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5159	if (grub2config) {	if (grub2config) {
5160	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5161	if (!gconfig)	if (!gconfig)
5162	gr2c = 1;	gr2c = 1;
5163	else	else
5164	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5165	}	}
	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");
5166
5167	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5168	}	if (!access(grubconfig, F_OK)) {
5169		gconfig = readConfig(grubconfig, &grubConfigType);
5170		if (!gconfig)
5171		grc = 1;
5172		else
5173		grc = checkForGrub(gconfig);
5174		}
5175
5176	if (grubConfig == NULL) {	if (!access(liloConfigType.defaultConfig, F_OK)) {
5177	printf("Could not find bootloader configuration file.\n");	lconfig =
5178	exit(1);	readConfig(liloConfigType.defaultConfig,
5179	}	&liloConfigType);
5180		if (!lconfig)
5181		lrc = 1;
5182		else
5183		lrc = checkForLilo(lconfig);
5184		}
5185
5186	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5187	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5188		&eliloConfigType);
5189		if (!econfig)
5190		erc = 1;
5191		else
5192		erc = checkForElilo(econfig);
5193		}
5194
5195	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5196	struct singleLine * line;	lconfig =
5197	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5198	char * rootspec;	&extlinuxConfigType);
5199		if (!lconfig)
5200	if (config->defaultImage == -1) return 0;	extrc = 1;
5201	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	else
5202	cfi->defaultIsSaved)	extrc = checkForExtLinux(lconfig);
5203	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));
5204
5205	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5206		yconfig = readConfig(yabootConfigType.defaultConfig,
5207		&yabootConfigType);
5208		if (!yconfig)
5209		yrc = 1;
5210		else
5211		yrc = checkForYaboot(yconfig);
5212		}
5213
5214	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5215	struct singleLine * line;	|| erc == 1)
5216	struct singleEntry * entry;	return 1;
5217
5218	if (config->defaultImage == -1) return 0;	if (lrc == 2)
5219	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	printf("lilo\n");
5220	cfi->defaultIsSaved)	if (gr2c == 2)
5221	config->defaultImage = 0;	printf("grub2\n");
5222	entry = findEntryByIndex(config, config->defaultImage);	if (grc == 2)
5223	if (!entry) return 0;	printf("grub\n");
5224		if (extrc == 2)
5225	if (!configureGrub2) {	printf("extlinux\n");
5226	line = getLineByType(LT_TITLE, entry->lines);	if (yrc == 2)
5227	if (!line) return 0;	printf("yaboot\n");
5228	printf("%s\n", line->elements[1].item);	if (erc == 2)
5229		printf("elilo\n");
5230
5231	} else {	return 0;
5232	char * title;	}
5233
5234	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	if (grubConfig == NULL) {
5235	line = getLineByType(LT_MENUENTRY, entry->lines);	printf("Could not find bootloader configuration file.\n");
5236	if (!line) return 0;	exit(1);
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5237	}	}
	return 0;
5238
5239	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5240	if (config->defaultImage == -1) return 0;	if (!config)
5241	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;
	}
5242
5243	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5244	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5245	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5246	bootPrefix, flags, defaultIndex);	char *rootspec;
5247	setFallbackImage(config, newKernelPath != NULL);
5248	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5249	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5250	if (updateKernelPath && newKernelInitrd) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5251	if (updateInitrd(config, updateKernelPath, bootPrefix,	cfi->defaultIsSaved)
5252	newKernelInitrd)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5253	}	entry = findEntryByIndex(config, config->defaultImage);
5254	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (!entry)
5255	newKernelTitle, newKernelArgs, newKernelInitrd,	return 0;
5256	(const char **)extraInitrds, extraInitrdCount,	if (!suitableImage(entry, bootPrefix, 0, flags))
5257	newMBKernel, newMBKernelArgs)) return 1;	return 0;
5258
5259		line =
5260	if (numEntries(config) == 0) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5261	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	LT_KERNEL_16, entry->lines);
5262	"Not writing out new config.\n"));	if (!line)
5263	return 1;	return 0;
5264	}
5265		rootspec = getRootSpecifier(line->elements[1].item);
5266		printf("%s%s\n", bootPrefix, line->elements[1].item +
5267		((rootspec != NULL) ? strlen(rootspec) : 0));
5268
5269		return 0;
5270
5271		} else if (displayDefaultTitle) {
5272		struct singleLine *line;
5273		struct singleEntry *entry;
5274
5275		if (config->defaultImage == NO_DEFAULT_ENTRY)
5276		return 0;
5277		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5278		cfi->defaultIsSaved)
5279		config->defaultImage = FIRST_ENTRY_INDEX;
5280		entry = findEntryByIndex(config, config->defaultImage);
5281		if (!entry)
5282		return 0;
5283
5284		if (!configureGrub2) {
5285		char *title;
5286		line = getLineByType(LT_TITLE, entry->lines);
5287		if (!line)
5288		return 0;
5289		title = extractTitle(config, line);
5290		if (!title)
5291		return 0;
5292		printf("%s\n", title);
5293		free(title);
5294		} else {
5295		char *title;
5296
5297		dbgPrintf
5298		("This is GRUB2, default title is embeded in menuentry\n");
5299		line = getLineByType(LT_MENUENTRY, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = grub2ExtractTitle(line);
5303		if (title)
5304		printf("%s\n", title);
5305		}
5306		return 0;
5307
5308		} else if (displayDefaultIndex) {
5309		if (config->defaultImage == NO_DEFAULT_ENTRY)
5310		return 0;
5311		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5312		cfi->defaultIsSaved)
5313		config->defaultImage = FIRST_ENTRY_INDEX;
5314		printf("%i\n", config->defaultImage);
5315		return 0;
5316
5317		} else if (kernelInfo)
5318		return displayInfo(config, kernelInfo, bootPrefix);
5319
5320		if (copyDefault) {
5321		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5322		if (!template)
5323		return 1;
5324		}
5325
5326		markRemovedImage(config, removeKernelPath, bootPrefix);
5327		markRemovedImage(config, removeMBKernel, bootPrefix);
5328		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5329		makeDefault, bootPrefix, flags, defaultIndex,
5330		newIndex);
5331		setFallbackImage(config, newKernelPath != NULL);
5332		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5333		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5334		return 1;
5335		if (updateKernelPath && newKernelInitrd) {
5336		if (newMBKernel) {
5337		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5338		bootPrefix, newKernelInitrd,
5339		newKernelTitle))
5340		return 1;
5341		} else {
5342		if (updateInitrd(config, updateKernelPath, bootPrefix,
5343		newKernelInitrd, newKernelTitle))
5344		return 1;
5345		}
5346		}
5347		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5348		newKernelTitle, newKernelArgs, newKernelInitrd,
5349		(const char **)extraInitrds, extraInitrdCount,
5350		newMBKernel, newMBKernelArgs, newDevTreePath,
5351		newIndex))
5352		return 1;
5353
5354		if (numEntries(config) == 0) {
5355		fprintf(stderr,
5356		_("grubby: doing this would leave no kernel entries. "
5357		"Not writing out new config.\n"));
5358		return 1;
5359		}
5360
5361	if (!outputFile)	if (!outputFile)
5362	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5363
5364	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5365	}	}

---

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Legend: Removed from v.2257   changed lines   Added in v.3024