Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 2246 by niro, Mon Oct 21 13:53:05 2013 UTC	revision 3025 by niro, Tue Jun 27 14:42:27 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);
155		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	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int caseInsensitive;	setEnvFunc setEnv;
163	int defaultIsIndex;	struct keywordTypes *keywords;
164	int defaultIsVariable;	int caseInsensitive;
165	int defaultSupportSaved;	int defaultIsIndex;
166	enum lineType_e entryStart;	int defaultIsVariable;
167	enum lineType_e entryEnd;	int defaultSupportSaved;
168	int needsBootPrefix;	int defaultIsSaved;
169	int argsInQuotes;	int defaultIsUnquoted;
170	int maxTitleLength;	enum lineType_e entryStart;
171	int titleBracketed;	enum lineType_e entryEnd;
172	int titlePosition;	int needsBootPrefix;
173	int mbHyperFirst;	int argsInQuotes;
174	int mbInitRdIsModule;	int maxTitleLength;
175	int mbConcatArgs;	int titleBracketed;
176	int mbAllowExtraInitRds;	int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		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	}	}
283	continue;	}
284	} else {
285		/* 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
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366	dbgPrintf("not found\n");	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	return configFiles[i];	{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		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	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 1,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.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	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757		return buf;
758		}
759
760	return buf;	static inline int
761		kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762		{
763		int kwl = strlen(kw->key);
764		int ll = strlen(label);
765		int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783		}
784		return 0;
785	}	}
786
787	static enum lineType_e preferredLineType(enum lineType_e type,	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct configFileInfo *cfi) {	struct configFileInfo *cfi)
789	if (isEfi && cfi == &grub2ConfigType) {	{
790	switch (type) {	if (isEfi && cfi == &grub2ConfigType) {
791	case LT_KERNEL:	switch (type) {
792	return LT_KERNEL_EFI;	case LT_KERNEL:
793	case LT_INITRD:	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	return LT_INITRD_EFI;	case LT_INITRD:
795	default:	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	return type;	default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810	}	}
811	}	return type;
	return type;
812	}	}
813
814	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
816	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
817	if (kw->type == type)	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	return kw;	if (kw->type == type)
819	}	return kw;
820	return NULL;	}
821		return NULL;
822	}	}
823
824	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct keywordTypes *kt = getKeywordByType(type, cfi);	{
826	if (kt)	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	return kt->key;	if (kt)
828	return "unknown";	return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getpathbyspec(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_devname(blkid, device, NULL);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static char * getuuidbydev(char *device) {	static char *getuuidbydev(char *device)
841	if (!blkid)	{
842	blkid_get_cache(&blkid, NULL);	if (!blkid)
843		blkid_get_cache(&blkid, NULL);
844
845	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
851	if (cfi->caseInsensitive) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcasecmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
	} else {
	if (!strcmp(keyword, kw->key))
	return kw->type;
854	}	}
855	}	return LT_UNKNOWN;
	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title;	/* bracketed title... let's extract it */
897	title = strdup(line->elements[0].item);	char *title = NULL;
898	title++;	if (line->type == LT_TITLE) {
899	*(title + strlen(title) - 1) = '\0';	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	return title;	if (cfg->cfi->titleBracketed) {
901	}	tmp++;
902		title = strdup(tmp);
903	static int readFile(int fd, char ** bufPtr) {	*(title + strlen(title) - 1) = '\0';
904	int alloced = 0, size = 0, i = 0;	} else {
905	char * buf = NULL;	title = strdup(tmp);
906		}
907	do {	} else if (line->type == LT_MENUENTRY)
908	size += i;	title = strdup(line->elements[1].item);
909	if ((size + 1024) > alloced) {	else
910	alloced += 4096;	return NULL;
911	buf = realloc(buf, alloced + 1);	return title;
912	}	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
	buf = realloc(buf, size + 2);
	if (size == 0)
	buf[size++] = '\n';
	else
	if (buf[size - 1] != '\n')
	buf[size++] = '\n';
	buf[size] = '\0';
913
914	*bufPtr = buf;	static int readFile(int fd, char **bufPtr)
915		{
916		int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919	return 0;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineInit(struct singleLine * line) {	if (i < 0) {
928	line->indent = NULL;	fprintf(stderr, _("error reading input: %s\n"),
929	line->elements = NULL;	strerror(errno));
930	line->numElements = 0;	free(buf);
931	line->next = NULL;	return 1;
932	}	}
	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);
	}
933
934	return newLine;	buf = realloc(buf, size + 2);
935	}	if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	static void lineFree(struct singleLine * line) {	*bufPtr = buf;
	if (line->indent) free(line->indent);
942
943	for (int i = 0; i < line->numElements; i++) {	return 0;
944	free(line->elements[i].item);	}
	free(line->elements[i].indent);
	}
945
946	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
947	lineInit(line);	{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	/* Need to handle this, because we strip the quotes from	newLine->next = NULL;
961	* menuentry when read it. */	newLine->type = line->type;
962	if (line->type == LT_MENUENTRY && i == 1) {	newLine->numElements = line->numElements;
963	if(!isquote(*line->elements[i].item))	newLine->elements = malloc(sizeof(*newLine->elements) *
964	fprintf(out, "\'%s\'", line->elements[i].item);	newLine->numElements);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
965
966	continue;	for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
972	if (fputc('"', out) == EOF) return -1;	}
	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;
	if (i < line->numElements - 1)
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (int i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098	line->type = LT_WHITESPACE;	do {
1099	line->numElements = 0;	for (; *chptr && isspace(*chptr); chptr++) ;
1100	}	if (*chptr == '=')
1101	} else {	chptr = chptr + 1;
1102	struct keywordTypes *kw;	} while (isspace(*chptr));
1103
1104	kw = getKeywordByType(line->type, cfi);	element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107	/* space isn't the only separator, we need to split	line->numElements++;
1108	* elements up more	first = 0;
1109	*/	}
	if (!isspace(kw->separatorChar)) {
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (int i = 1; i < line->numElements; i++) {
	char *p;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (int j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
	}
	line->numElements += numNewElements;
1110
1111	p = line->elements[i].item;	if (!line->numElements)
1112	while (*p != '\0') {	line->type = LT_WHITESPACE;
1113		else {
1114		line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115		if (line->type == LT_UNKNOWN) {
1116		/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	while (*p != kw->separatorChar && *p != '\0') p++;	/* this is awkward, but we need to be able to handle
1123	if (*p == '\0') {	* keywords that begin with a # (specifically for
1124	break;	* #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->elements[i + 1].indent = line->elements[i].indent;	line->type = LT_WHITESPACE;
1151	line->elements[i].indent = strdup(indent);	line->numElements = 0;
	*p++ = '\0';
	i++;
	line->elements[i].item = strdup(p);
1152	}	}
1153	}	} else if (line->type == LT_INITRD) {
1154	}	struct keywordTypes *kw;
	}
	}
1155
1156	return 0;	kw = getKeywordByType(line->type, cfi);
	}
1157
1158	static struct grubConfig * readConfig(const char * inName,	/* space isn't the only separator, we need to split
1159	struct configFileInfo * cfi) {	* elements up more
1160	int in;	*/
1161	char * incoming = NULL, * head;	if (!isspace(kw->separatorChar)) {
1162	int rc;	char indent[2] = "";
1163	int sawEntry = 0;	indent[0] = kw->separatorChar;
1164	int movedLine = 0;	for (int i = 1; i < line->numElements; i++) {
1165	struct grubConfig * cfg;	char *p;
1166	struct singleLine * last = NULL, * line, * defaultLine = NULL;	int numNewElements;
1167	char * end;
1168	struct singleEntry * entry = NULL;	numNewElements = 0;
1169	int len;	p = line->elements[i].item;
1170	char * buf;	while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172	if (inName == NULL) {	numNewElements++;
1173	printf("Could not find bootloader configuration\n");	p++;
1174	exit(1);	}
1175	} else if (!strcmp(inName, "-")) {	if (line->numElements +
1176	in = 0;	numNewElements >= elementsAlloced) {
1177	} else {	elementsAlloced +=
1178	if ((in = open(inName, O_RDONLY)) < 0) {	numNewElements + 5;
1179	fprintf(stderr, _("error opening %s for read: %s\n"),	line->elements =
1180	inName, strerror(errno));	realloc(line->elements,
1181	return NULL;	sizeof(*line->
1182	}	elements) *
1183	}	elementsAlloced);
1184		}
1185
1186	rc = readFile(in, &incoming);	for (int j = line->numElements; j > i;
1187	close(in);	j--) {
1188	if (rc) return NULL;	line->elements[j +
1189		numNewElements] =
1190	head = incoming;	line->elements[j];
1191	cfg = malloc(sizeof(*cfg));	}
1192	cfg->primaryIndent = strdup("");	line->numElements += numNewElements;
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1193
1194	if (getNextLine(&head, line, cfi)) {	p = line->elements[i].item;
1195	free(line);	while (*p != '\0') {
	/* XXX memory leak of everything in cfg */
	return NULL;
	}
	if (!sawEntry && line->numElements) {
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1196
1197	entry->skip = 0;	while (*p != kw->separatorChar
1198	entry->multiboot = 0;	&& *p != '\0')
1199	entry->lines = NULL;	p++;
1200	entry->next = NULL;	if (*p == '\0') {
1201	}	break;
1202		}
1203	if (line->type == LT_SET_VARIABLE) {
1204	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	line->elements[i + 1].indent =
1205	dbgPrintf("%s", line->indent);	line->elements[i].indent;
1206	for (int i = 0; i < line->numElements; i++)	line->elements[i].indent =
1207	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	strdup(indent);
1208	dbgPrintf("\n");	*p++ = '\0';
1209	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	i++;
1210	if (kwType && line->numElements == 3 &&	line->elements[i].item =
1211	!strcmp(line->elements[1].item, kwType->key)) {	strdup(p);
1212	dbgPrintf("Line sets default config\n");	}
1213	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	}
1214	defaultLine = line;	}
1215	}	} else if (line->type == LT_SET_VARIABLE) {
1216	} else if (line->type == LT_DEFAULT && line->numElements == 2) {	/* and if it's a "set blah=" we need to split it
1217	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	* yet a third way to avoid rhbz# XXX FIXME :/
1218	defaultLine = line;	*/
1219		char *eq;
1220	} else if (iskernel(line->type)) {	int l;
1221	/* if by some freak chance this is multiboot and the "module"	int numElements = line->numElements;
1222	* lines came earlier in the template, make sure to use LT_HYPER	struct lineElement *newElements;
1223	* instead of LT_KERNEL now	eq = strchr(line->elements[1].item, '=');
1224	*/	if (!eq)
1225	if (entry->multiboot)	return 0;
1226	line->type = LT_HYPER;	l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228	} else if (line->type == LT_MBMODULE) {	numElements++;
1229	/* go back and fix the LT_KERNEL line to indicate LT_HYPER	newElements = calloc(numElements,sizeof (*newElements));
1230	* instead, now that we know this is a multiboot entry.	memcpy(&newElements[0], &line->elements[0],
1231	* This only applies to grub, but that's the only place we	sizeof (newElements[0]));
1232	* should find LT_MBMODULE lines anyway.	newElements[1].item =
1233	*/	strndup(line->elements[1].item, l);
1234	for (struct singleLine *l = entry->lines; l; l = l->next) {	newElements[1].indent = "=";
1235	if (l->type == LT_HYPER)	*(eq++) = '\0';
1236	break;	newElements[2].item = strdup(eq);
1237	else if (iskernel(l->type)) {	free(line->elements[1].item);
1238	l->type = LT_HYPER;	if (line->elements[1].indent)
1239	break;	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	entry->multiboot = 1;	newElements[i+1].indent =
1243		line->elements[i].indent;
1244	} else if (line->type == LT_HYPER) {	}
1245	entry->multiboot = 1;	free(line->elements);
1246		line->elements = newElements;
1247	} else if (line->type == LT_FALLBACK && line->numElements == 2) {	line->numElements = numElements;
1248	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);	}
1249	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';
1250
1251	for (int i = 1; i < line->numElements; i++) {	return 0;
1252	strcat(buf, line->elements[i].item);	}
	free(line->elements[i].item);
1253
1254	if ((i + 1) != line->numElements) {	static int isnumber(const char *s)
1255	strcat(buf, line->elements[i].indent);	{
1256	free(line->elements[i].indent);	int i;
1257	}	for (i = 0; s[i] != '\0'; i++)
1258	}	if (s[i] < '0' || s[i] > '9')
1259		return 0;
1260	line->elements[1].indent =	return i;
1261	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;
1262
1263	len = strlen(title);	static struct grubConfig *readConfig(const char *inName,
1264	if (isquote(title[len-1])) {	struct configFileInfo *cfi)
1265	strncat(buf, title,len-1);	{
1266	break;	int in;
1267	} else {	char *incoming = NULL, *head;
1268	strcat(buf, title);	int rc;
1269	strcat(buf, line->elements[i].indent);	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 {
1284		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	}	}
	}
	/* get extras */
	int count = 0;
	for (int i = 0; i < line->numElements; i++) {
	if (count >= 2) {
	strcat(extras, line->elements[i].item);
	strcat(extras, line->elements[i].indent);
	}
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	/* count ' or ", there should be two in menuentry line. */
	if (isquote(*line->elements[i].item))
	count++;
	len = strlen(line->elements[i].item);
	if (isquote(line->elements[i].item[len -1]))
	count++;
	/* ok, we get the final ' or ", others are extras. */
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(line->elements[last].item[len]))
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
1289	}	}
	movedLine = 0;
1290
1291	if (sawEntry) {	rc = readFile(in, &incoming);
1292	if (!entry->lines)	close(in);
1293	entry->lines = line;	if (rc)
1294	else	return NULL;
1295	last->next = line;
1296	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	head = incoming;
1297		cfg = malloc(sizeof(*cfg));
1298	/* we could have seen this outside of an entry... if so, we	cfg->primaryIndent = strdup("");
1299	* ignore it like any other line we don't grok */	cfg->secondaryIndent = strdup("\t");
1300	if (line->type == LT_ENTRY_END && sawEntry)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	sawEntry = 0;	cfg->cfi = cfi;
1302	} else {	cfg->theLines = NULL;
1303	if (!cfg->theLines)	cfg->entries = NULL;
1304	cfg->theLines = line;	cfg->fallbackImage = 0;
1305	else	cfg->isModified = 0;
1306	last->next = line;
1307	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	/* 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	last = line;	if (!sawEntry && line->numElements) {
1319	}	free(cfg->primaryIndent);
1320		cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	free(incoming);	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327		sawEntry = 1;
1328		if (!entry) {
1329		cfg->entries = malloc(sizeof(*entry));
1330		entry = cfg->entries;
1331		} else {
1332		entry->next = malloc(sizeof(*entry));
1333		entry = entry->next;
1334		}
1335
1336	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	entry->skip = 0;
1337	if (defaultLine) {	entry->multiboot = 0;
1338	if (defaultLine->numElements > 2 &&	entry->lines = NULL;
1339	cfi->defaultSupportSaved &&	entry->next = NULL;
1340	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	}
	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
	} else if (cfi->defaultIsVariable) {
	char *value = defaultLine->elements[2].item;
	while (*value && (*value == '"' || *value == '\'' ||
	*value == ' ' || *value == '\t'))
	value++;
	cfg->defaultImage = strtol(value, &end, 10);
	while (*end && (*end == '"' || *end == '\'' ||
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	int i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1341
1342	if (entry){	if (line->type == LT_SET_VARIABLE) {
1343	cfg->defaultImage = i;	dbgPrintf("found 'set' command (%d elements): ",
1344	}else{	line->numElements);
1345	cfg->defaultImage = -1;	dbgPrintf("%s", line->indent);
1346	}	for (int i = 0; i < line->numElements; i++)
1347	}	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	} else {	line->elements[i].indent);
1349	cfg->defaultImage = 0;	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	return cfg;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	static void writeDefault(FILE * out, char * indent,	} else if (line->type == LT_HYPER) {
1387	char * separator, struct grubConfig * cfg) {	entry->multiboot = 1;
	struct singleEntry * entry;
	struct singleLine * line;
	int i;
	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;
	if (cfg->defaultImage == DEFAULT_SAVED)
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)
	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
	else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1388
1389	entry = cfg->entries;	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	while (entry && entry->skip) entry = entry->next;	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	i = 0;	for (int i = 1; i < line->numElements; i++) {
1409	while (entry && i < image) {	strcat(buf, line->elements[i].item);
1410	entry = entry->next;	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	while (entry && entry->skip) entry = entry->next;	line->elements[1].indent =
1419	i++;	line->elements[line->numElements - 1].indent;
1420	}	line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	if (!entry) return;	/* allocate mem for extra flags. */
1438		extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	line = getLineByType(LT_TITLE, entry->lines);	len = strlen(title);
1456		if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	if (line && line->numElements >= 2)	/* get extras */
1466	fprintf(out, "%sdefault%s%s\n", indent, separator,	int count = 0;
1467	line->elements[1].item);	quote_char = '\0';
1468	else if (line && (line->numElements == 1) &&	for (int i = 0; i < line->numElements; i++) {
1469	cfg->cfi->titleBracketed) {	if (count >= 2) {
1470	fprintf(out, "%sdefault%s%s\n", indent, separator,	strcat(extras, line->elements[i].item);
1471	extractTitle(line));	strcat(extras,
1472	}	line->elements[i].indent);
1473	}	}
	}
	}
1474
1475	static int writeConfig(struct grubConfig * cfg, char * outName,	if (!strcmp
1476	const char * prefix) {	(line->elements[i].item, "menuentry"))
1477	FILE * out;	continue;
1478	struct singleLine * line;
1479	struct singleEntry * entry;	/* count ' or ", there should be two in menuentry line. */
1480	char * tmpOutName;	if (isquote(*line->elements[i].item)
1481	int needs = MAIN_DEFAULT;	&& quote_char == '\0') {
1482	struct stat sb;	/* ensure we properly pair off quotes */
1483	int i;	quote_char = *line->elements[i].item;
1484		count++;
1485	if (!strcmp(outName, "-")) {	}
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	char *dir = strdupa(outName);
	rc = chdir(dirname(dir));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1486
1487	line = cfg->theLines;	len = strlen(line->elements[i].item);
	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)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1488
1489	line = line->next;	if (line->elements[i].item[len - 1] ==
1490	}	quote_char)
1491		count++;
1492
1493	if (needs & MAIN_DEFAULT) {	/* ok, we get the final ' or ", others are extras. */
1494	writeDefault(out, cfg->primaryIndent, "=", cfg);	}
1495	needs &= ~MAIN_DEFAULT;	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	i = 0;	if (isquote(*line->elements[1].item))
1511	while ((entry = findEntryByIndex(cfg, i++))) {	memmove(line->elements[1].item,
1512	if (entry->skip) continue;	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	line = entry->lines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	while (line) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	if (lineWrite(out, line, cfg->cfi) == -1) {	defaultLine = line;
1526	fprintf(stderr, _("grubby: error writing %s: %s\n"),	}
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
	}
	}
1527
1528	if (tmpOutName) {	/* If we find a generic config option which should live at the
1529	if (rename(tmpOutName, outName)) {	top of the file, move it there. Old versions of grubby were
1530	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	probably responsible for putting new images in the wrong
1531	tmpOutName, outName, strerror(errno));	place in front of it anyway. */
1532	unlink(outName);	if (sawEntry && line->type == LT_GENERIC) {
1533	return 1;	struct singleLine **l = &cfg->theLines;
1534	}	struct singleLine **last_nonws = &cfg->theLines;
1535	}	while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	return 0;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	static int numEntries(struct grubConfig *cfg) {	if (sawEntry) {
1558	int i = 0;	if (!entry->lines)
1559	struct singleEntry * entry;	entry->lines = line;
1560		else
1561	entry = cfg->entries;	last->next = line;
1562	while (entry) {	dbgPrintf("readConfig added %s to %p\n",
1563	if (!entry->skip)	getKeyByType(line->type, cfi), entry);
	i++;
	entry = entry->next;
	}
	return i;
	}
1564
1565	static char *findDiskForRoot()	/* we could have seen this outside of an entry... if
1566	{	* so, we ignore it like any other line we don't grok
1567	int fd;	*/
1568	char buf[65536];	if (line->type == LT_ENTRY_END && sawEntry)
1569	char *devname;	sawEntry = 0;
1570	char *chptr;	} else {
1571	int rc;	if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	last = line;
1580	fprintf(stderr, "grubby: failed to open %s: %s\n",	}
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1581
1582	rc = read(fd, buf, sizeof(buf) - 1);	free(incoming);
	if (rc <= 0) {
	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++;
	}
1583
1584	/* Return the last / entry found */	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	if (foundanswer) {	if (defaultLine) {
1586	chptr = strchr(foundanswer, ' ');	if (defaultLine->numElements > 2 &&
1587	*chptr = '\0';	cfi->defaultSupportSaved &&
1588	return strdup(foundanswer);	!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	return NULL;	if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697	}	}
1698
1699	void printEntry(struct singleEntry * entry, FILE *f) {	static void writeDefault(FILE * out, char *indent,
1700	int i;	char *separator, struct grubConfig *cfg)
1701	struct singleLine * line;	{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759	for (line = entry->lines; line; line = line->next) {	while (entry && entry->skip)
1760	log_message(f, "DBG: %s", line->indent);	entry = entry->next;
1761	for (i = 0; i < line->numElements; i++) {	i++;
1762	/* Need to handle this, because we strip the quotes from	}
1763	* menuentry when read it. */
1764	if (line->type == LT_MENUENTRY && i == 1) {	if (!entry)
1765	if(!isquote(*line->elements[i].item))	return;
1766	log_message(f, "\'%s\'", line->elements[i].item);
1767	else	line = getLineByType(LT_TITLE, entry->lines);
1768	log_message(f, "%s", line->elements[i].item);
1769	log_message(f, "%s", line->elements[i].indent);	if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771	continue;	separator, line->elements[1].item);
1772	}	else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774	log_message(f, "%s%s",	char *title = extractTitle(cfg, line);
1775	line->elements[i].item, line->elements[i].indent);	if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782	}	}
	log_message(f, "\n");
	}
1783	}	}
1784
1785	void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...)	static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787	{	{
1788	static int once;	FILE *out;
1789	va_list argp, argq;	struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824	va_start(argp, fmt);	outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828	va_copy(argq, argp);	tmpOutName = alloca(strlen(outName) + 2);
1829	if (!once) {	sprintf(tmpOutName, "%s-", outName);
1830	log_time(NULL);	out = fopen(tmpOutName, "w");
1831	log_message(NULL, "command line: %s\n", saved_command_line);	if (!out) {
1832	}	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833	log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed");	tmpOutName, strerror(errno));
1834	log_vmessage(NULL, fmt, argq);	return 1;
1835		}
	printEntry(entry, NULL);
	va_end(argq);
1836
1837	if (!debug) {	if (!stat(outName, &sb)) {
1838	once = 1;	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839	va_end(argp);	fprintf(stderr,
1840	return;	_
1841	}	("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850	if (okay) {	line = cfg->theLines;
1851	va_end(argp);	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852	return;	while (line) {
1853	}	if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881		line = line->next;
1882		}
1883
1884		if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889		i = 0;
1890		while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908		if (tmpOutName) {
1909		if (rename(tmpOutName, outName)) {
1910		fprintf(stderr,
1911		_("grubby: error moving %s to %s: %s\n"),
1912		tmpOutName, outName, strerror(errno));
1913		unlink(outName);
1914		return 1;
1915		}
1916		}
1917
1918		return 0;
1919		}
1920
1921		static int numEntries(struct grubConfig *cfg)
1922		{
1923		int i = 0;
1924		struct singleEntry *entry;
1925
1926		entry = cfg->entries;
1927		while (entry) {
1928		if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931		}
1932		return i;
1933		}
1934
1935		static char *findDiskForRoot()
1936		{
1937		int fd;
1938		char buf[65536];
1939		char *devname;
1940		char *chptr;
1941		int rc;
1942
1943		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944		fprintf(stderr, "grubby: failed to open %s: %s\n",
1945		_PATH_MOUNTED, strerror(errno));
1946		return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955		}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960		char *foundanswer = NULL;
1961
1962		while (chptr && chptr != buf + rc) {
1963		devname = chptr;
1964
1965		/*
1966		* The first column of a mtab entry is the device, but if the
1967		* entry is a special device it won't start with /, so move
1968		* on to the next line.
1969		*/
1970		if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977		/* Seek to the next space */
1978		chptr = strchr(chptr, ' ');
1979		if (!chptr) {
1980		fprintf(stderr, "grubby: error parsing %s: %s\n",
1981		_PATH_MOUNTED, strerror(errno));
1982		return NULL;
1983		}
1984
1985		/*
1986		* The second column of a mtab entry is the mount point, we
1987		* are looking for '/' obviously.
1988		*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994		/* Next line */
1995		chptr = strchr(chptr, '\n');
1996		if (chptr)
1997		chptr++;
1998		}
1999
2000		/* Return the last / entry found */
2001		if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007		return NULL;
2008		}
2009
2010		void printEntry(struct singleEntry *entry, FILE * f)
2011		{
2012		int i;
2013		struct singleLine *line;
2014
2015	if (!once)	for (line = entry->lines; line; line = line->next) {
2016	log_message(stderr, "DBG: command line: %s\n", saved_command_line);	log_message(f, "DBG: %s", line->indent);
2017	once = 1;	for (i = 0; i < line->numElements; i++) {
2018	fprintf(stderr, "DBG: Image entry failed: ");	/* Need to handle this, because we strip the quotes from
2019	vfprintf(stderr, fmt, argp);	* menuentry when read it. */
2020	printEntry(entry, stderr);	if (line->type == LT_MENUENTRY && i == 1) {
2021	va_end(argp);	if (!isquote(*line->elements[i].item))
2022		log_message(f, "\'%s\'",
2023		line->elements[i].item);
2024		else
2025		log_message(f, "%s",
2026		line->elements[i].item);
2027		log_message(f, "%s", line->elements[i].indent);
2028
2029		continue;
2030		}
2031
2032		log_message(f, "%s%s",
2033		line->elements[i].item,
2034		line->elements[i].indent);
2035		}
2036		log_message(f, "\n");
2037		}
2038		}
2039
2040		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042		{
2043		static int once;
2044		va_list argp, argq;
2045
2046		va_start(argp, fmt);
2047
2048		va_copy(argq, argp);
2049		if (!once) {
2050		log_time(NULL);
2051		log_message(NULL, "command line: %s\n", saved_command_line);
2052		}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079	}	}
2080
2081	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1626  static int endswith(const char *s, char	Line 2091  static int endswith(const char *s, char
2091	return s[slen] == c;	return s[slen] == c;
2092	}	}
2093
2094	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int skipRemoved, int flags) {	int skipRemoved, int flags)
2096	struct singleLine * line;	{
2097	char * fullName;	struct singleLine *line;
2098	int i;	char *fullName;
2099	char * dev;	int i;
2100	char * rootspec;	char *dev;
2101	char * rootdev;	char *rootspec;
2102		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, 0, "marked to skip\n");
	return 0;
	}
2103
2104	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	if (skipRemoved && entry->skip) {
2105	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	notSuitablePrintf(entry, 0, "no line found\n");	return 0;
2107	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, 0, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2108
2109	if (flags & GRUBBY_BADIMAGE_OKAY) {	line =
2110	notSuitablePrintf(entry, 1, "\n");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111	return 1;	entry->lines);
2112	}	if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120		}
2121
2122	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2124	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2125	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);
2126
2127	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2128	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2129		rootspec = getRootSpecifier(line->elements[1].item);
2130		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132		beginswith(line->elements[1].item + rootspec_offset, '/');
2133		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135		if (access(fullName, R_OK)) {
2136		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137		return 0;
2138		}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144	} else {	} else {
2145	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2146	* 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);
2147
2148	/* failed to find one */	if (line && line->numElements >= 2) {
2149	if (!line) {	dev = line->elements[1].item;
2150	notSuitablePrintf(entry, 0, "no line found\n");	} else {
2151	return 0;	/* didn't succeed in finding a LT_ROOT, let's try
2152	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154		*/
2155		line =
2156		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157		entry->lines);
2158
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2166	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2167	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2168	dev = line->elements[i].item + 5;	break;
2169	else {	if (i < line->numElements)
2170	notSuitablePrintf(entry, 0, "no root= entry found\n");	dev = line->elements[i].item + 5;
2171	/* it failed too...  can't find root= */	else {
2172	return 0;	notSuitablePrintf(entry, 0,
2173	}	"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
	}
2179
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2180	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2189	if (!rootdev) {	if (!rootdev) {
2190	notSuitablePrintf(entry, 0, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2191	return 0;	return 0;
2192	}	}
2193
2194	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195	notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2196	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2197	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2198	return 0;	free(rootdev);
2199	}	return 0;
2200		}
2201
2202	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203	notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2204	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2205	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2206	return 0;	free(rootdev);
2207	}	return 0;
2208		}
2209
2210	free(rootdev);	free(rootdev);
2211	notSuitablePrintf(entry, 1, "\n");	notSuitablePrintf(entry, 1, "\n");
2212
2213	return 1;	return 1;
2214	}	}
2215
2216	/* 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
2217	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2218	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2220	int * index) {	int *index)
2221	struct singleEntry * entry = NULL;	{
2222	struct singleLine * line;	struct singleEntry *entry = NULL;
2223	int i;	struct singleLine *line;
2224	char * chptr;	int i;
2225	char * rootspec = NULL;	char *chptr;
2226	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228
2229		if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	if (isdigit(*kernel)) {	if (*chptr) {
2241	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	/* can't parse it, bail */
2242		return NULL;
2243		}
2244
2245	i = 0;	indexVars[i + 1] = -1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2246
2247	if (*chptr) {	i = 0;
2248	/* can't parse it, bail */	if (index) {
2249	return NULL;	while (i < *index) {
2250	}	i++;
2251		if (indexVars[i] == -1)
2252		return NULL;
2253		}
2254		}
2255
2256	indexVars[i + 1] = -1;	entry = findEntryByIndex(config, indexVars[i]);
2257		if (!entry)
2258	i = 0;	return NULL;
2259	if (index) {
2260	while (i < *index) i++;	line =
2261	if (indexVars[i] == -1) return NULL;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262		LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269	}	}
2270
2271	entry = findEntryByIndex(config, indexVars[i]);	if (!strcmp(kernel, "DEFAULT")) {
2272	if (!entry) return NULL;	if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274		} else {
2275		entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2288	if (!line) return NULL;	if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	if (index) *index = indexVars[i];	if (entry && index)
2294	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2295	} else {	} else {
2296	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2297	if (entry && entry->skip)	i = *index;
2298	entry = NULL;	else
2299	else if (index)	i = 0;
2300	*index = config->defaultImage;
2301	}	if (!strncmp(kernel, "TITLE=", 6)) {
2302	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2303	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2304	i = *index;	kernel += 6;
2305	else	}
2306	i = 0;
2307		for (entry = findEntryByIndex(config, i); entry;
2308		entry = entry->next, i++) {
2309		if (entry->skip)
2310		continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346		/* make sure this entry has a kernel identifier; this skips
2347		* non-Linux boot entries (could find netbsd etc, though, which is
2348		* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357	while ((entry = findEntryByIndex(config, i))) {	if (index)
2358	if (!entry->skip) break;	*index = i;
	i++;
2359	}	}
2360
2361	if (entry && index)	return entry;
2362	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2363
2364	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	prefix = "";	int *index)
2366	checkType = LT_TITLE|LT_MENUENTRY;	{
2367	kernel += 6;	struct singleEntry *entry;
2368	}	struct singleLine *line;
2369		int i;
2370	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2371	if (entry->skip) continue;
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2374		continue;
2375	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
	for (line = entry->lines; line; line = line->next) {
	enum lineType_e ct = checkType;
	if (entry->multiboot && checkType == LT_KERNEL)
	ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER;
	else if (checkType & LT_KERNEL)
	ct = checkType | LT_KERNEL_EFI;
	line = getLineByType(ct, line);
2376	if (!line)	if (!line)
2377	break;  /* not found in this entry */	line = getLineByType(LT_MENUENTRY, entry->lines);
2378		if (!line)
2379	if (line && line->type != LT_MENUENTRY &&	continue;
2380	line->numElements >= 2) {	newtitle = grub2ExtractTitle(line);
2381	rootspec = getRootSpecifier(line->elements[1].item);	if (!newtitle)
2382	if (!strcmp(line->elements[1].item +	continue;
2383	((rootspec != NULL) ? strlen(rootspec) : 0),	if (!strcmp(title, newtitle))
	kernel + strlen(prefix)))
2384	break;	break;
	}
	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! */
2385	}	}
2386
2387	if (index) *index = i;	if (!entry)
2388	}	return NULL;
2389
2390	return entry;	if (index)
2391		*index = i;
2392		return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398
2399	entry = cfg->entries;	entry = cfg->entries;
2400	while (index && entry) {	while (index && entry) {
2401	entry = entry->next;	entry = entry->next;
2402	index--;	index--;
2403	}	}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* 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 1876  struct singleEntry * findEntryByIndex(st	Line 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* 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,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->defaultImage > -1) {
2419	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2420	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2421	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2422	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423		if (defTitle) {
2424		int index = 0;
2425		if (isnumber(defTitle)) {
2426		index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return entry;	return entry;
2468	}	}
2469
2470	index++;	index++;
2471	}	}
2472
2473	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2474		_("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		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;
	}
2504
2505	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2506	entry->skip = 1;	return;
	}
2507
2508	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2509	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2510	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2512	int i, j;	entry->skip = 1;
2513		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;
2514	}	}
	}
2515
2516	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	changes */	entry->skip = 1;
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2518	}	}
2519
2520	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	int j;	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524	if (config->fallbackImage == -1) return;	{
2525		struct singleEntry *bootEntry, *newDefault;
2526	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
	if (hasNew)
	config->fallbackImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2527
2528	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* handle the two cases where the user explictly picks the default
2529	struct singleLine * line;	* boot entry index as it would exist post-modification */
	char * root = NULL;
	int i;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2530
2531	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* Case 1: user chose to make the latest boot entry the default */
2532	printf("kernel=%s\n", line->elements[1].item);	if (newBootEntryIsDefault) {
2533	else	config->defaultImage = newBootEntryIndex;
2534	printf("kernel=%s%s\n", prefix, line->elements[1].item);	return;
2535		}
2536	if (line->numElements >= 3) {
2537	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2538	i = 2;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2539	while (i < line->numElements) {	&& config->cfi->defaultIsIndex) {
2540	if (!strncmp(line->elements[i].item, "root=", 5)) {	indexToVerify = newDefaultBootEntryIndex;
2541	root = line->elements[i].item + 5;
2542	} else {	/* user chose to make latest boot entry the default */
2543	printf("%s%s", line->elements[i].item,	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2544	line->elements[i].indent);	config->defaultImage = newBootEntryIndex;
2545	}	return;
2546		}
2547
2548	i++;	/* the user picks the default index based on the
2549	}	* order of the bootloader configuration after
2550	printf("\"\n");	* modification; ensure we are checking for the
2551	} else {	* existence of the correct entry */
2552	line = getLineByType(LT_KERNELARGS, entry->lines);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2553	if (line) {	if (!config->isModified)
2554	char * s;	indexToVerify--;
2555		}
2556
2557	printf("args=\"");	/* verify the user selected index will exist */
2558	i = 1;	if (findEntryByIndex(config, indexToVerify)) {
2559	while (i < line->numElements) {	config->defaultImage = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
2560	} else {	} else {
2561	s = line->elements[i].item;	config->defaultImage = NO_DEFAULT_ENTRY;
	printf("%s%s", s, line->elements[i].indent);
2562	}	}
2563
2564	i++;	return;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
2565	}	}
	}
	if (!root) {
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2566
2567	if (root) {	/* handle cases where the index value may shift */
	char * s = alloca(strlen(root) + 1);
	strcpy(s, root);
	if (s[strlen(s) - 1] == '"')
	s[strlen(s) - 1] = '\0';
	/* make sure the root doesn't have a trailing " */
	printf("root=%s\n", s);
	}
2568
2569	line = getLineByType(LT_INITRD|LT_INITRD_EFI, entry->lines);	/* check validity of existing default or first-entry-found
2570		selection */
2571		if (defaultKernelPath) {
2572		/* user requested first-entry-found */
2573		if (!findEntryByPath(config, defaultKernelPath,
2574		prefix, &firstKernelEntryIndex)) {
2575		/* don't change default if can't find match */
2576		config->defaultImage = NO_DEFAULT_ENTRY;
2577		return;
2578		}
2579
2580	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2581
2582	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2583	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2584
2585	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2586	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2587	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2588	} else {	config->defaultImage++;
2589	char * title;	}
2590	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2591	title = grub2ExtractTitle(line);	/* use pre-existing default entry */
2592	if (title)	currentLookupIndex = config->defaultImage;
	printf("title=%s\n", title);
	}
	}
	int isSuseSystem(void) {
	const char * path;
	const static char default_path[] = "/etc/SuSE-release";
	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
	path = default_path;
	if (!access(path, R_OK))
	return 1;
	return 0;
	}
	int isSuseGrubConf(const char * path) {
	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;
	}
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
	}
	}
	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
	path);
2593
2594	fclose(grubConf);	if (isAddingBootEntry
2595	free(line);	&& (newBootEntryIndex <= config->defaultImage)) {
2596	return 0;	config->defaultImage++;
	}
2597
2598	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	if (config->isModified) {
2599	FILE * grubConf;	currentLookupIndex++;
2600	char * line = NULL;	}
2601	size_t res = 0, len = 0;	}
	if (!path) return 1;
	if (!lbaPtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2602	}	}
2603
2604	if (!strncmp(line, "setup", 5)) {	/* sanity check - is this entry index valid? */
2605	if (strstr(line, "--force-lba")) {	bootEntry = findEntryByIndex(config, currentLookupIndex);
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2606
2607	free(line);	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2608	fclose(grubConf);	/* entry is to be skipped or is invalid */
2609	return 0;	if (isAddingBootEntry) {
2610	}	config->defaultImage = newBootEntryIndex;
2611		return;
2612		}
2613		newDefault =
2614		findTemplate(config, prefix, &config->defaultImage, 1,
2615		flags);
2616		if (!newDefault) {
2617		config->defaultImage = NO_DEFAULT_ENTRY;
2618		}
2619
2620	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	return;
	FILE * grubConf;
	char * line = NULL;
	size_t res = 0, len = 0;
	char * lastParamPtr = NULL;
	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';
2621	}	}
2622
2623	lastParamPtr = bounds = line + res;	currentLookupIndex--;
2624
2625	/* Last parameter in grub may be an optional IMAGE_DEVICE */	/* decrement index by the total number of entries deleted */
	while (!isspace(*lastParamPtr))
	lastParamPtr--;
	lastParamPtr++;
2626
2627	secLastParamPtr = lastParamPtr - 2;	for (indexToVerify = currentLookupIndex;
2628	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2629
2630	if (lastParamPtr + 3 > bounds) {	bootEntry = findEntryByIndex(config, indexToVerify);
	dbgPrintf("lastParamPtr going over boundary");
	fclose(grubConf);
	free(line);
	return 1;
	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2631
2632	/*	if (bootEntry && bootEntry->skip) {
2633	* Second last parameter will decide wether last parameter is	config->defaultImage--;
2634	* an IMAGE_DEVICE or INSTALL_DEVICE	}
	*/
	while (!isspace(*secLastParamPtr))
	secLastParamPtr--;
	secLastParamPtr++;
	if (secLastParamPtr + 3 > bounds) {
	dbgPrintf("secLastParamPtr going over boundary");
	fclose(grubConf);
	free(line);
	return 1;
	}
	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
	if (!strncmp(secLastParamPtr, "(hd", 3)) {
	secLastParamPtr += 3;
	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
	installDeviceNumber = *secLastParamPtr;
	} else {
	installDeviceNumber = *lastParamPtr;
2635	}	}
2636		}
2637
2638	*devicePtr = malloc(6);	void setFallbackImage(struct grubConfig *config, int hasNew)
2639	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	{
2640	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	struct singleEntry *entry, *entry2;
2641	fclose(grubConf);	int j;
	free(line);
	return 0;
	}
2642
2643	free(line);	if (config->fallbackImage == -1)
2644	fclose(grubConf);	return;
	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;
2645
2646	while ((res = getline(&line, &len, deviceMap)) != -1) {	entry = findEntryByIndex(config, config->fallbackImage);
2647	if (!strncmp(line, "#", 1))	if (!entry || entry->skip) {
2648	continue;	config->fallbackImage = -1;
2649		return;
	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';
2650	}	}
2651
2652	devicePtr = line;	if (hasNew)
2653	bounds = line + res;	config->fallbackImage++;
	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
	devicePtr++;
	dbgPrintf("device: %s\n", devicePtr);
	if (!strncmp(devicePtr, device, strlen(device))) {
	devicePtr += strlen(device);
	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))
	devicePtr++;
2654
2655	*bootPtr = strdup(devicePtr);	/* count the number of entries erased before this one */
2656	break;	for (j = 0; j < config->fallbackImage; j++) {
2657		entry2 = findEntryByIndex(config, j);
2658		if (entry2->skip)
2659		config->fallbackImage--;
2660	}	}
	}
	free(line);
	fclose(deviceMap);
	return 0;
2661	}	}
2662
2663	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2664	char * grubDevice;	{
2665		struct singleLine *line;
2666	if (suseGrubConfGetInstallDevice(path, &grubDevice))	char *root = NULL;
2667	dbgPrintf("error looking for grub installation device\n");	int i;
2668	else	int j;
	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);
2669
2670	free(grubDevice);	printf("index=%d\n", index);
	return 0;
	}
2671
2672	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	line =
2673	/*	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2674	* This SuSE grub configuration file at this location is not your average	entry->lines);
2675	* grub configuration file, but instead the grub commands used to setup	if (!line) {
2676	* grub on that system.	printf("non linux entry\n");
2677	*/	return;
2678	const char * path;	}
	const static char default_path[] = "/etc/grub.conf";
	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
	path = default_path;
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2679
2680	if (bootPtr) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2681	*bootPtr = NULL;	printf("kernel=%s\n", line->elements[1].item);
2682	suseGrubConfGetBoot(path, bootPtr);	else
2683	}	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2684
2685	return 0;	if (line->numElements >= 3) {
2686	}	printf("args=\"");
2687		i = 2;
2688		while (i < line->numElements) {
2689		if (!strncmp(line->elements[i].item, "root=", 5)) {
2690		root = line->elements[i].item + 5;
2691		} else {
2692		printf("%s%s", line->elements[i].item,
2693		line->elements[i].indent);
2694		}
2695
2696	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	i++;
2697	FILE * in;	}
2698	char buf[1024];	printf("\"\n");
2699	char * chptr;	} else {
2700	char * start;	line = getLineByType(LT_KERNELARGS, entry->lines);
2701	char * param;	if (line) {
2702		char *s;
2703	in = fopen("/etc/conf.d/grub", "r");
2704	if (!in) return 1;	printf("args=\"");
2705		i = 1;
2706	if (lbaPtr) *lbaPtr = 0;	while (i < line->numElements) {
2707	if (bootPtr) *bootPtr = NULL;	if (!strncmp
2708		(line->elements[i].item, "root=", 5)) {
2709	while (fgets(buf, sizeof(buf), in)) {	root = line->elements[i].item + 5;
2710	start = buf;	} else {
2711	while (isspace(*start)) start++;	s = line->elements[i].item;
	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);
	}
2712
2713	fclose(in);	printf("%s%s", s,
2714		line->elements[i].indent);
2715		}
2716
2717	return 0;	i++;
2718	}	}
2719
2720	void dumpSysconfigGrub(void) {	s = line->elements[i - 1].indent;
2721	char * boot = NULL;	printf("\"\n");
2722	int lba;	}
	if (isSuseSystem()) {
	if (parseSuseGrubConf(&lba, &boot)) {
	free(boot);
	return;
	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2723	}	}
	}
	if (lba) printf("lba\n");
	if (boot) {
	printf("boot=%s\n", boot);
	free(boot);
	}
	}
2724
2725	int displayInfo(struct grubConfig * config, char * kernel,	if (!root) {
2726	const char * prefix) {	line = getLineByType(LT_ROOT, entry->lines);
2727	int i = 0;	if (line && line->numElements >= 2)
2728	struct singleEntry * entry;	root = line->elements[1].item;
	struct singleLine * line;
	entry = findEntryByPath(config, kernel, prefix, &i);
	if (!entry) {
	fprintf(stderr, _("grubby: kernel not found\n"));
	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);
2729	}	}
2730
2731	line = getLineByType(LT_LBA, config->theLines);	if (root) {
2732	if (line) printf("lba\n");	char *s = alloca(strlen(root) + 1);
	}
	displayEntry(entry, prefix, i);
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
	return 0;
	}
	struct singleLine * addLineTmpl(struct singleEntry * entry,
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi)
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (isEfi && cfi == &grub2ConfigType) {
	enum lineType_e old = newLine->type;
	newLine->type = preferredLineType(newLine->type, cfi);
	if (old != newLine->type)
	newLine->elements[0].item = getKeyByType(newLine->type, cfi);
	}
2733
2734	if (val) {	strcpy(s, root);
2735	/* override the inherited value with our own.	if (s[strlen(s) - 1] == '"')
2736	* This is a little weak because it only applies to elements[1]	s[strlen(s) - 1] = '\0';
2737	*/	/* make sure the root doesn't have a trailing " */
2738	if (newLine->numElements > 1)	printf("root=%s\n", s);
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD|LT_KERNEL_EFI|LT_INITRD_EFI)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
2739	}	}
	}
2740
2741	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	line =
2742	newLine->elements[0].item : "");	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2743		entry->lines);
2744
2745	if (!entry->lines) {	if (line && line->numElements >= 2) {
2746	/* first one on the list */	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2747	entry->lines = newLine;	printf("initrd=");
2748	} else if (prevLine) {	else
2749	/* add after prevLine */	printf("initrd=%s", prefix);
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
	}
2750
2751	/* val may be NULL */	for (i = 1; i < line->numElements; i++)
2752	struct singleLine *  addLine(struct singleEntry * entry,	printf("%s%s", line->elements[i].item,
2753	struct configFileInfo * cfi,	line->elements[i].indent);
2754	enum lineType_e type, char * defaultIndent,	printf("\n");
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* 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 = "";
2755	}	}
	}
	/* The last non-empty line gives us the indention to us and the line
	to insert after. Note that comments are considered empty lines, which
	may not be ideal? If there are no lines or we are looking at the
	first line, we use defaultIndent (the first line is normally indented
	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;
	}
2756
2757	struct singleLine *menuEntry;	line = getLineByType(LT_TITLE, entry->lines);
2758	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	if (line) {
2759	if (tmpl.type == LT_ENTRY_END) {	printf("title=%s\n", line->elements[1].item);
2760	if (menuEntry)	} else {
2761	tmpl.indent = menuEntry->indent;	char *title;
2762	else	line = getLineByType(LT_MENUENTRY, entry->lines);
2763	tmpl.indent = defaultIndent ?: "";	if (line) {
2764	} else if (tmpl.type != LT_MENUENTRY) {	title = grub2ExtractTitle(line);
2765	if (menuEntry)	if (title)
2766	tmpl.indent = "\t";	printf("title=%s\n", title);
2767	else if (prev == entry->lines)	}
2768	tmpl.indent = defaultIndent ?: "";	}
	else
	tmpl.indent = prev->indent;
	}
2769
2770	return addLineTmpl(entry, &tmpl, prev, val, cfi);	for (j = 0, line = entry->lines; line; line = line->next) {
2771		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2772		if (!strncmp
2773		(prefix, line->elements[1].item, strlen(prefix)))
2774		printf("mbmodule%d=", j);
2775		else
2776		printf("mbmodule%d=%s", j, prefix);
2777
2778		for (i = 1; i < line->numElements; i++)
2779		printf("%s%s", line->elements[i].item,
2780		line->elements[i].indent);
2781		printf("\n");
2782		j++;
2783		}
2784		}
2785	}	}
2786
2787	void removeLine(struct singleEntry * entry, struct singleLine * line) {	int isSuseSystem(void)
2788	struct singleLine * prev;	{
2789	int i;	const char *path;
2790		const static char default_path[] = "/etc/SuSE-release";
	for (i = 0; i < line->numElements; i++) {
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2791
2792	if (line == entry->lines) {	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2793	entry->lines = line->next;	path = default_path;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2794
2795	free(line);	if (!access(path, R_OK))
2796		return 1;
2797		return 0;
2798	}	}
2799
2800	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int isSuseGrubConf(const char *path)
2801	{	{
2802	struct singleLine newLine = {	FILE *grubConf;
2803	.indent = tmplLine->indent,	char *line = NULL;
2804	.type = tmplLine->type,	size_t len = 0, res = 0;
2805	.next = tmplLine->next,
2806	};	grubConf = fopen(path, "r");
2807	int firstQuotedItem = -1;	if (!grubConf) {
2808	int quoteLen = 0;	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2809	int j;	path);
2810	int element = 0;	return 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;
	}
2811	}	}
	}
	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] = ' ';
	}
2812
2813	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	while ((res = getline(&line, &len, grubConf)) != -1) {
2814	/* move the end-of-line forward */	if (!strncmp(line, "setup", 5)) {
2815	line->elements[insertHere].indent =	fclose(grubConf);
2816	line->elements[insertHere-1].indent;	free(line);
2817	line->elements[insertHere-1].indent = strdup(indent);	return 1;
2818	} else {	}
2819	line->elements[insertHere].indent = strdup(indent);	}
	}
2820
2821	line->numElements++;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2822		path);
2823
2824	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	fclose(grubConf);
2825	line->elements[0].item,	free(line);
2826	line->elements[insertHere].item,	return 0;
	line->elements[insertHere].indent,
	insertHere);
2827	}	}
2828
2829	static void removeElement(struct singleLine * line, int removeHere) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2830	int i;	{
2831		FILE *grubConf;
2832	/* sanity check */	char *line = NULL;
2833	if (removeHere >= line->numElements) return;	size_t res = 0, len = 0;
	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
	removeHere, line->elements[removeHere].item);
2834
2835	free(line->elements[removeHere].item);	if (!path)
2836		return 1;
2837		if (!lbaPtr)
2838		return 1;
2839
2840	if (removeHere > 1) {	grubConf = fopen(path, "r");
2841	/* previous argument gets this argument's post-indentation */	if (!grubConf)
2842	free(line->elements[removeHere-1].indent);	return 1;
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2843
2844	/* now collapse the array, but don't bother to realloc smaller */	while ((res = getline(&line, &len, grubConf)) != -1) {
2845	for (i = removeHere; i < line->numElements - 1; i++)	if (line[res - 1] == '\n')
2846	line->elements[i] = line->elements[i + 1];	line[res - 1] = '\0';
2847		else if (len > res)
2848	line->numElements--;	line[res] = '\0';
2849	}	else {
2850		line = realloc(line, res + 1);
2851	int argMatch(const char * one, const char * two) {	line[res] = '\0';
2852	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;
	}
	}
2853
2854	if (!removeArgs) {	if (!strncmp(line, "setup", 5)) {
2855	oldArgs = malloc(sizeof(*oldArgs));	if (strstr(line, "--force-lba")) {
2856	*oldArgs = NULL;	*lbaPtr = 1;
2857	} else {	} else {
2858	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	*lbaPtr = 0;
2859	fprintf(stderr,	}
2860	_("grubby: error separating arguments '%s'\n"), removeArgs);	dbgPrintf("lba: %i\n", *lbaPtr);
2861	free(newArgs);	break;
2862	return 1;	}
2863	}	}
	}
2864
2865		free(line);
2866		fclose(grubConf);
2867		return 0;
2868		}
2869
2870	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2871	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	{
2872		FILE *grubConf;
2873	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	char *line = NULL;
2874	&& !multibootArgs);	size_t res = 0, len = 0;
2875		char *lastParamPtr = NULL;
2876		char *secLastParamPtr = NULL;
2877		char installDeviceNumber = '\0';
2878		char *bounds = NULL;
2879
2880	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	if (!path)
2881		return 1;
2882		if (!devicePtr)
2883		return 1;
2884
2885	if (multibootArgs && !entry->multiboot)	grubConf = fopen(path, "r");
2886	continue;	if (!grubConf)
2887		return 1;
2888
2889	/* Determine where to put the args.  If this config supports	while ((res = getline(&line, &len, grubConf)) != -1) {
2890	* LT_KERNELARGS, use that.  Otherwise use	if (strncmp(line, "setup", 5))
2891	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	continue;
2892	*/
2893	if (useKernelArgs) {	if (line[res - 1] == '\n')
2894	line = getLineByType(LT_KERNELARGS, entry->lines);	line[res - 1] = '\0';
2895	if (!line) {	else if (len > res)
2896	/* no LT_KERNELARGS, need to add it */	line[res] = '\0';
2897	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	else {
2898	cfg->secondaryIndent, NULL);	line = realloc(line, res + 1);
2899	}	line[res] = '\0';
2900	firstElement = 1;	}
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
2901
2902	} else {	lastParamPtr = bounds = line + res;
	line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
	}
2903
2904	/* handle the elilo case which does:	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2905	*   append="hypervisor args -- kernel args"	while (!isspace(*lastParamPtr))
2906	*/	lastParamPtr--;
2907	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	lastParamPtr++;
2908	/* this is a multiboot entry, make sure there's
2909	* -- on the args line	secLastParamPtr = lastParamPtr - 2;
2910	*/	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2911	for (i = firstElement; i < line->numElements; i++) {
2912	if (!strcmp(line->elements[i].item, "--"))	if (lastParamPtr + 3 > bounds) {
2913	break;	dbgPrintf("lastParamPtr going over boundary");
2914	}	fclose(grubConf);
2915	if (i == line->numElements) {	free(line);
2916	/* assume all existing args are kernel args,	return 1;
2917	* prepend -- to make it official	}
2918		if (!strncmp(lastParamPtr, "(hd", 3))
2919		lastParamPtr += 3;
2920		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2921
2922		/*
2923		* Second last parameter will decide wether last parameter is
2924		* an IMAGE_DEVICE or INSTALL_DEVICE
2925	*/	*/
2926	insertElement(line, "--", firstElement, cfg->cfi);	while (!isspace(*secLastParamPtr))
2927	i = firstElement;	secLastParamPtr--;
2928	}	secLastParamPtr++;
2929	if (!multibootArgs) {
2930	/* kernel args start after the -- */	if (secLastParamPtr + 3 > bounds) {
2931	firstElement = i + 1;	dbgPrintf("secLastParamPtr going over boundary");
2932	}	fclose(grubConf);
2933	} else if (cfg->cfi->mbConcatArgs) {	free(line);
2934	/* this is a non-multiboot entry, remove hyper args */	return 1;
2935	for (i = firstElement; i < line->numElements; i++) {	}
2936	if (!strcmp(line->elements[i].item, "--"))	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2937	break;	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2938	}	secLastParamPtr += 3;
2939	if (i < line->numElements) {	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2940	/* remove args up to -- */	installDeviceNumber = *secLastParamPtr;
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
	if (i < line->numElements && doreplace) {
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
	/* root= replacement */
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
2941	} else {	} else {
2942	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	installDeviceNumber = *lastParamPtr;
	cfg->secondaryIndent, *arg + 5);
2943	}	}
	}
2944
2945	else {	*devicePtr = malloc(6);
2946	/* insert/append */	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2947	insertElement(line, *arg, i, cfg->cfi);	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2948	usedElements = realloc(usedElements, line->numElements *	fclose(grubConf);
2949	sizeof(*usedElements));	free(line);
2950	memmove(&usedElements[i + 1], &usedElements[i],	return 0;
	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);
2951	}	}
	}
2952
2953	free(newArgs);	free(line);
2954	free(oldArgs);	fclose(grubConf);
2955		return 1;
	return 0;
2956	}	}
2957
2958	int updateImage(struct grubConfig * cfg, const char * image,	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2959	const char * prefix, const char * addArgs,	{
2960	const char * removeArgs,	FILE *deviceMap;
2961	const char * addMBArgs, const char * removeMBArgs) {	char *line = NULL;
2962	int rc = 0;	size_t res = 0, len = 0;
2963		char *devicePtr;
2964	if (!image) return rc;	char *bounds = NULL;
2965		const char *path;
2966	/* update the main args first... */	const static char default_path[] = "/boot/grub/device.map";
2967	if (addArgs || removeArgs)
2968	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (!device)
2969	if (rc) return rc;	return 1;
2970		if (!bootPtr)
	/* 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)
2971	return 1;	return 1;
	}
2972
2973	break;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2974	}	path = default_path;
2975
2976	return 0;	dbgPrintf("opening grub device.map file from: %s\n", path);
2977	}	deviceMap = fopen(path, "r");
2978		if (!deviceMap)
2979		return 1;
2980
2981	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
2982	int fd;	if (!strncmp(line, "#", 1))
2983	unsigned char bootSect[512];	continue;
2984	int offset;
2985		if (line[res - 1] == '\n')
2986	fd = open(device, O_RDONLY);	line[res - 1] = '\0';
2987	if (fd < 0) {	else if (len > res)
2988	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	line[res] = '\0';
2989	device, strerror(errno));	else {
2990	return 1;	line = realloc(line, res + 1);
2991	}	line[res] = '\0';
2992		}
2993
2994	if (read(fd, bootSect, 512) != 512) {	devicePtr = line;
2995	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	bounds = line + res;
	device, strerror(errno));
	return 1;
	}
	close(fd);
2996
2997	/* first three bytes should match, a jmp short should be in there */	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2998	if (memcmp(boot, bootSect, 3))	devicePtr++;
2999	return 0;	dbgPrintf("device: %s\n", devicePtr);
3000
3001		if (!strncmp(devicePtr, device, strlen(device))) {
3002		devicePtr += strlen(device);
3003		while (isspace(*devicePtr)
3004		&& ((devicePtr + 1) <= bounds))
3005		devicePtr++;
3006
3007	if (boot[1] == JMP_SHORT_OPCODE) {	*bootPtr = strdup(devicePtr);
3008	offset = boot[2] + 2;	break;
3009	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	}
3010	offset = (boot[3] << 8) + boot[2] + 2;	}
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
3011
3012	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	free(line);
3013		fclose(deviceMap);
3014	return 0;	return 0;
	return 2;
3015	}	}
3016
3017	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3018	int fd;	{
3019	char buf[65536];	char *grubDevice;
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
	/* it's on raid; we need to parse /proc/mdstat and check all of the
	*raw* devices listed in there */
3020
3021	if (!strncmp(mdDev, "/dev/", 5))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3022	mdDev += 5;	dbgPrintf("error looking for grub installation device\n");
3023		else
3024		dbgPrintf("grubby installation device: %s\n", grubDevice);
3025
3026	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3027	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	dbgPrintf("error looking for grub boot device\n");
3028	strerror(errno));	else
3029	return 2;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	}
3030
3031	rc = read(fd, buf, sizeof(buf) - 1);	free(grubDevice);
3032	if (rc < 0 || rc == (sizeof(buf) - 1)) {	return 0;
3033	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	}
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3034
3035	chptr = buf;	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3036	while (*chptr) {	{
3037	end = strchr(chptr, '\n');	/*
3038	if (!end) break;	* This SuSE grub configuration file at this location is not your
3039	*end = '\0';	* average grub configuration file, but instead the grub commands
3040		* used to setup grub on that system.
3041		*/
3042		const char *path;
3043		const static char default_path[] = "/etc/grub.conf";
3044
3045	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3046	chptr[strlen(mdDev)] == ' ') {	path = default_path;
3047
3048	/* found the device */	if (!isSuseGrubConf(path))
3049	while (*chptr && *chptr != ':') chptr++;	return 1;
	chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3050
3051	/*  we're good to go */	if (lbaPtr) {
3052	return 2;	*lbaPtr = 0;
3053		if (suseGrubConfGetLba(path, lbaPtr))
3054		return 1;
3055	}	}
3056
3057	chptr = end + 1;	if (bootPtr) {
3058	}	*bootPtr = NULL;
3059		suseGrubConfGetBoot(path, bootPtr);
3060		}
3061
3062	fprintf(stderr,	return 0;
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3063	}	}
3064
3065	int checkForLilo(struct grubConfig * config) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3066	int fd;	{
3067	unsigned char boot[512];	FILE *in;
3068	struct singleLine * line;	char buf[1024];
3069		char *chptr;
3070	for (line = config->theLines; line; line = line->next)	char *start;
3071	if (line->type == LT_BOOT) break;	char *param;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3072
3073	if (line->numElements != 2) return 1;	in = fopen("/etc/sysconfig/grub", "r");
3074		if (!in)
3075		return 1;
3076
3077	fd = open("/boot/boot.b", O_RDONLY);	if (lbaPtr)
3078	if (fd < 0) {	*lbaPtr = 0;
3079	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	if (bootPtr)
3080	"/boot/boot.b", strerror(errno));	*bootPtr = NULL;
3081	return 1;
3082	}	while (fgets(buf, sizeof(buf), in)) {
3083		start = buf;
3084		while (isspace(*start))
3085		start++;
3086		if (*start == '#')
3087		continue;
3088
3089		chptr = strchr(start, '=');
3090		if (!chptr)
3091		continue;
3092		chptr--;
3093		while (*chptr && isspace(*chptr))
3094		chptr--;
3095		chptr++;
3096		*chptr = '\0';
3097
3098		param = chptr + 1;
3099		while (*param && isspace(*param))
3100		param++;
3101		if (*param == '=') {
3102		param++;
3103		while (*param && isspace(*param))
3104		param++;
3105		}
3106
3107	if (read(fd, boot, 512) != 512) {	chptr = param;
3108	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while (*chptr && !isspace(*chptr))
3109	"/boot/boot.b", strerror(errno));	chptr++;
3110	return 1;	*chptr = '\0';
3111	}
3112	close(fd);	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3113		*lbaPtr = 1;
3114		else if (!strcmp(start, "boot") && bootPtr)
3115		*bootPtr = strdup(param);
3116		}
3117
3118	if (!strncmp("/dev/md", line->elements[1].item, 7))	fclose(in);
	return checkLiloOnRaid(line->elements[1].item, boot);
3119
3120	return checkDeviceBootloader(line->elements[1].item, boot);	return 0;
3121	}	}
3122
3123	int checkForGrub2(struct grubConfig * config) {	void dumpSysconfigGrub(void)
3124	if (!access("/etc/grub.d/", R_OK))	{
3125	return 2;	char *boot = NULL;
3126		int lba;
	return 1;
	}
3127
3128	int checkForGrub(struct grubConfig * config) {	if (isSuseSystem()) {
3129	int fd;	if (parseSuseGrubConf(&lba, &boot)) {
3130	unsigned char bootSect[512];	free(boot);
3131	char * boot;	return;
3132	int onSuse = isSuseSystem();	}
3133		} else {
3134		if (parseSysconfigGrub(&lba, &boot)) {
3135		free(boot);
3136		return;
3137		}
3138		}
3139
3140		if (lba)
3141		printf("lba\n");
3142		if (boot) {
3143		printf("boot=%s\n", boot);
3144		free(boot);
3145		}
3146		}
3147
3148	if (onSuse) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3149	if (parseSuseGrubConf(NULL, &boot))	{
3150	return 0;	int i = 0;
3151	} else {	struct singleEntry *entry;
3152	if (parseSysconfigGrub(NULL, &boot))	struct singleLine *line;
3153	return 0;
3154	}	entry = findEntryByPath(config, kernel, prefix, &i);
3155		if (!entry) {
3156		fprintf(stderr, _("grubby: kernel not found\n"));
3157		return 1;
3158		}
3159
3160	/* assume grub is not installed -- not an error condition */	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3161	if (!boot)	be a better way */
3162	return 0;	if (config->cfi == &grubConfigType) {
3163		dumpSysconfigGrub();
3164		} else {
3165		line = getLineByType(LT_BOOT, config->theLines);
3166		if (line && line->numElements >= 1) {
3167		printf("boot=%s\n", line->elements[1].item);
3168		}
3169
3170	fd = open("/boot/grub/stage1", O_RDONLY);	line = getLineByType(LT_LBA, config->theLines);
3171	if (fd < 0)	if (line)
3172	/* this doesn't exist if grub hasn't been installed */	printf("lba\n");
3173	return 0;	}
3174
3175	if (read(fd, bootSect, 512) != 512) {	displayEntry(entry, prefix, i);
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
	close(fd);
	return 1;
	}
	close(fd);
3176
3177	/* The more elaborate checks do not work on SuSE. The checks done	i++;
3178	* seem to be reasonble (at least for now), so just return success	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3179	*/	displayEntry(entry, prefix, i);
3180	if (onSuse)	i++;
3181	return 2;	}
3182
3183	return checkDeviceBootloader(boot, bootSect);	return 0;
3184	}	}
3185
3186	int checkForExtLinux(struct grubConfig * config) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3187	int fd;	struct singleLine *tmplLine,
3188	unsigned char bootSect[512];	struct singleLine *prevLine,
3189	char * boot;	const char *val, struct configFileInfo *cfi)
3190	char executable[] = "/boot/extlinux/extlinux";	{
3191		struct singleLine *newLine = lineDup(tmplLine);
3192
3193	printf("entered: checkForExtLinux()\n");	if (isEfi && cfi == &grub2ConfigType) {
3194		enum lineType_e old = newLine->type;
3195		newLine->type = preferredLineType(newLine->type, cfi);
3196		if (old != newLine->type)
3197		newLine->elements[0].item =
3198		getKeyByType(newLine->type, cfi);
3199		}
3200
3201	if (parseSysconfigGrub(NULL, &boot))	if (val) {
3202	return 0;	/* override the inherited value with our own.
3203		* This is a little weak because it only applies to elements[1]
3204	/* assume grub is not installed -- not an error condition */	*/
3205	if (!boot)	if (newLine->numElements > 1)
3206	return 0;	removeElement(newLine, 1);
3207		insertElement(newLine, val, 1, cfi);
3208
3209		/* but try to keep the rootspec from the template... sigh */
3210		if (tmplLine->
3211		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3212		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3213		LT_INITRD_16)) {
3214		char *rootspec =
3215		getRootSpecifier(tmplLine->elements[1].item);
3216		if (rootspec != NULL) {
3217		free(newLine->elements[1].item);
3218		newLine->elements[1].item =
3219		sdupprintf("%s%s", rootspec, val);
3220		}
3221		}
3222		}
3223
3224	fd = open(executable, O_RDONLY);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3225	if (fd < 0)	newLine->elements[0].item : "");
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3226
3227	if (read(fd, bootSect, 512) != 512) {	if (!entry->lines) {
3228	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	/* first one on the list */
3229	executable, strerror(errno));	entry->lines = newLine;
3230	return 1;	} else if (prevLine) {
3231	}	/* add after prevLine */
3232	close(fd);	newLine->next = prevLine->next;
3233		prevLine->next = newLine;
3234		}
3235
3236	return checkDeviceBootloader(boot, bootSect);	return newLine;
3237	}	}
3238
3239	int checkForYaboot(struct grubConfig * config) {	/* val may be NULL */
3240	/*	struct singleLine *addLine(struct singleEntry *entry,
3241	* This is a simplistic check that we consider good enough for own puporses	struct configFileInfo *cfi,
3242	*	enum lineType_e type, char *defaultIndent,
3243	* If we were to properly check if yaboot is *installed* we'd need to:	const char *val)
3244	* 1) get the system boot device (LT_BOOT)	{
3245	* 2) considering it's a raw filesystem, check if the yaboot binary matches	struct singleLine *line, *prev;
3246	*    the content on the boot device	struct keywordTypes *kw;
3247	* 3) if not, copy the binary to a temporary file and run "addnote" on it	struct singleLine tmpl;
	* 4) check again if binary and boot device contents match
	*/
	if (!access("/etc/yaboot.conf", R_OK))
	return 2;
3248
3249	return 1;	/* NB: This function shouldn't allocate items on the heap, rather on
3250		* the stack since it calls addLineTmpl which will make copies.
3251		*/
3252		if (type == LT_TITLE && cfi->titleBracketed) {
3253		/* we're doing a bracketed title (zipl) */
3254		tmpl.type = type;
3255		tmpl.numElements = 1;
3256		tmpl.elements = alloca(sizeof(*tmpl.elements));
3257		tmpl.elements[0].item = alloca(strlen(val) + 3);
3258		sprintf(tmpl.elements[0].item, "[%s]", val);
3259		tmpl.elements[0].indent = "";
3260		val = NULL;
3261		} else if (type == LT_MENUENTRY) {
3262		char *lineend = "--class gnu-linux --class gnu --class os {";
3263		if (!val) {
3264		fprintf(stderr,
3265		"Line type LT_MENUENTRY requires a value\n");
3266		abort();
3267		}
3268		kw = getKeywordByType(type, cfi);
3269		if (!kw) {
3270		fprintf(stderr,
3271		"Looking up keyword for unknown type %d\n",
3272		type);
3273		abort();
3274		}
3275		tmpl.indent = "";
3276		tmpl.type = type;
3277		tmpl.numElements = 3;
3278		tmpl.elements =
3279		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3280		tmpl.elements[0].item = kw->key;
3281		tmpl.elements[0].indent = alloca(2);
3282		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3283		tmpl.elements[1].item = (char *)val;
3284		tmpl.elements[1].indent = alloca(2);
3285		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3286		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3287		strcpy(tmpl.elements[2].item, lineend);
3288		tmpl.elements[2].indent = "";
3289		} else {
3290		kw = getKeywordByType(type, cfi);
3291		if (!kw) {
3292		fprintf(stderr,
3293		"Looking up keyword for unknown type %d\n",
3294		type);
3295		abort();
3296		}
3297		tmpl.type = type;
3298		tmpl.numElements = val ? 2 : 1;
3299		tmpl.elements =
3300		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3301		tmpl.elements[0].item = kw->key;
3302		tmpl.elements[0].indent = alloca(2);
3303		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3304		if (val) {
3305		tmpl.elements[1].item = (char *)val;
3306		tmpl.elements[1].indent = "";
3307		}
3308		}
3309
3310		/* The last non-empty line gives us the indention to us and the line
3311		* to insert after. Note that comments are considered empty lines,
3312		* which may not be ideal? If there are no lines or we are looking at
3313		* the first line, we use defaultIndent (the first line is normally
3314		* indented differently from the rest) */
3315		for (line = entry->lines, prev = NULL; line; line = line->next) {
3316		if (line->numElements)
3317		prev = line;
3318		/* fall back on the last line if prev isn't otherwise set */
3319		if (!line->next && !prev)
3320		prev = line;
3321		}
3322
3323		struct singleLine *menuEntry;
3324		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3325		if (tmpl.type == LT_ENTRY_END) {
3326		if (menuEntry)
3327		tmpl.indent = menuEntry->indent;
3328		else
3329		tmpl.indent = defaultIndent ? : "";
3330		} else if (tmpl.type != LT_MENUENTRY) {
3331		if (menuEntry)
3332		tmpl.indent = "\t";
3333		else if (prev == entry->lines)
3334		tmpl.indent = defaultIndent ? : "";
3335		else
3336		tmpl.indent = prev->indent;
3337		}
3338
3339		return addLineTmpl(entry, &tmpl, prev, val, cfi);
3340	}	}
3341
3342	int checkForElilo(struct grubConfig * config) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3343	if (!access("/etc/elilo.conf", R_OK))	{
3344	return 2;	struct singleLine *prev;
3345		int i;
3346
3347	return 1;	for (i = 0; i < line->numElements; i++) {
3348		free(line->elements[i].item);
3349		free(line->elements[i].indent);
3350		}
3351		free(line->elements);
3352		free(line->indent);
3353
3354		if (line == entry->lines) {
3355		entry->lines = line->next;
3356		} else {
3357		prev = entry->lines;
3358		while (prev->next != line)
3359		prev = prev->next;
3360		prev->next = line->next;
3361		}
3362
3363		free(line);
3364	}	}
3365
3366	static char * getRootSpecifier(char * str) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3367	char * idx, * rootspec = NULL;	{
3368		struct singleLine newLine = {
3369		.indent = tmplLine->indent,
3370		.type = tmplLine->type,
3371		.next = tmplLine->next,
3372		};
3373		int firstQuotedItem = -1;
3374		int quoteLen = 0;
3375		int j;
3376		int element = 0;
3377		char *c;
3378
3379	if (*str == '(') {	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3380	idx = rootspec = strdup(str);	strcpy(c, tmplLine->elements[0].item);
3381	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	insertElement(&newLine, c, element++, cfi);
3382	*(++idx) = '\0';	free(c);
3383	}	c = NULL;
3384	return rootspec;
3385		for (j = 1; j < tmplLine->numElements; j++) {
3386		if (firstQuotedItem == -1) {
3387		quoteLen += strlen(tmplLine->elements[j].item);
3388
3389		if (isquote(tmplLine->elements[j].item[0])) {
3390		firstQuotedItem = j;
3391		quoteLen +=
3392		strlen(tmplLine->elements[j].indent);
3393		} else {
3394		c = malloc(quoteLen + 1);
3395		strcpy(c, tmplLine->elements[j].item);
3396		insertElement(&newLine, c, element++, cfi);
3397		free(c);
3398		quoteLen = 0;
3399		}
3400		} else {
3401		int itemlen = strlen(tmplLine->elements[j].item);
3402		quoteLen += itemlen;
3403		quoteLen += strlen(tmplLine->elements[j].indent);
3404
3405		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3406		c = malloc(quoteLen + 1);
3407		c[0] = '\0';
3408		for (int i = firstQuotedItem; i < j + 1; i++) {
3409		strcat(c, tmplLine->elements[i].item);
3410		strcat(c, tmplLine->elements[i].indent);
3411		}
3412		insertElement(&newLine, c, element++, cfi);
3413		free(c);
3414
3415		firstQuotedItem = -1;
3416		quoteLen = 0;
3417		}
3418		}
3419		}
3420		while (tmplLine->numElements)
3421		removeElement(tmplLine, 0);
3422		if (tmplLine->elements)
3423		free(tmplLine->elements);
3424
3425		tmplLine->numElements = newLine.numElements;
3426		tmplLine->elements = newLine.elements;
3427	}	}
3428
3429	static char * getInitrdVal(struct grubConfig * config,	static void insertElement(struct singleLine *line,
3430	const char * prefix, struct singleLine *tmplLine,	const char *item, int insertHere,
3431	const char * newKernelInitrd,	struct configFileInfo *cfi)
3432	const char ** extraInitrds, int extraInitrdCount)	{
3433	{	struct keywordTypes *kw;
3434	char *initrdVal, *end;	char indent[2] = "";
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3435
3436	initrdVal = end = malloc(totalSize);	/* sanity check */
3437		if (insertHere > line->numElements) {
3438		dbgPrintf
3439		("insertElement() adjusting insertHere from %d to %d\n",
3440		insertHere, line->numElements);
3441		insertHere = line->numElements;
3442		}
3443
3444		line->elements = realloc(line->elements, (line->numElements + 1) *
3445		sizeof(*line->elements));
3446		memmove(&line->elements[insertHere + 1],
3447		&line->elements[insertHere],
3448		(line->numElements - insertHere) * sizeof(*line->elements));
3449		line->elements[insertHere].item = strdup(item);
3450
3451		kw = getKeywordByType(line->type, cfi);
3452
3453		if (line->numElements == 0) {
3454		indent[0] = '\0';
3455		} else if (insertHere == 0) {
3456		indent[0] = kw->nextChar;
3457		} else if (kw->separatorChar != '\0') {
3458		indent[0] = kw->separatorChar;
3459		} else {
3460		indent[0] = ' ';
3461		}
3462
3463	end = stpcpy (end, newKernelInitrd + prefixLen);	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3464		/* move the end-of-line forward */
3465		line->elements[insertHere].indent =
3466		line->elements[insertHere - 1].indent;
3467		line->elements[insertHere - 1].indent = strdup(indent);
3468		} else {
3469		line->elements[insertHere].indent = strdup(indent);
3470		}
3471
3472	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	line->numElements++;
3473	for (i = 0; i < extraInitrdCount; i++) {
3474	const char *extraInitrd;	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3475	int j;	line->elements[0].item,
3476		line->elements[insertHere].item,
3477		line->elements[insertHere].indent, insertHere);
3478		}
3479
3480	extraInitrd = extraInitrds[i] + prefixLen;	static void removeElement(struct singleLine *line, int removeHere)
3481	/* Don't add entries that are already there */	{
3482	if (tmplLine != NULL) {	int i;
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
3483
3484	if (j != tmplLine->numElements)	/* sanity check */
3485	continue;	if (removeHere >= line->numElements)
3486		return;
3487
3488		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3489		removeHere, line->elements[removeHere].item);
3490
3491		free(line->elements[removeHere].item);
3492
3493		if (removeHere > 1) {
3494		/* previous argument gets this argument's post-indentation */
3495		free(line->elements[removeHere - 1].indent);
3496		line->elements[removeHere - 1].indent =
3497		line->elements[removeHere].indent;
3498		} else {
3499		free(line->elements[removeHere].indent);
3500	}	}
3501
3502	*end++ = separatorChar;	/* now collapse the array, but don't bother to realloc smaller */
3503	end = stpcpy(end, extraInitrd);	for (i = removeHere; i < line->numElements - 1; i++)
3504	}	line->elements[i] = line->elements[i + 1];
3505
3506	return initrdVal;	line->numElements--;
3507	}	}
3508
3509	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int argMatch(const char *one, const char *two)
3510	const char * prefix,	{
3511	const char * newKernelPath, const char * newKernelTitle,	char *first, *second;
3512	const char * newKernelArgs, const char * newKernelInitrd,	char *chptr;
3513	const char ** extraInitrds, int extraInitrdCount,
3514	const char * newMBKernel, const char * newMBKernelArgs) {	first = strcpy(alloca(strlen(one) + 1), one);
3515	struct singleEntry * new;	second = strcpy(alloca(strlen(two) + 1), two);
3516	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
3517	int needs;	chptr = strchr(first, '=');
3518	char * chptr;	if (chptr)
3519		*chptr = '\0';
3520	if (!newKernelPath) return 0;
3521		chptr = strchr(second, '=');
3522	/* if the newKernelTitle is too long silently munge it into something	if (chptr)
3523	* we can live with. truncating is first check, then we'll just mess with	*chptr = '\0';
3524	* it until it looks better */
3525	if (config->cfi->maxTitleLength &&	return strcmp(first, second);
3526	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	}
3527	char * buf = alloca(config->cfi->maxTitleLength + 7);
3528	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	int updateActualImage(struct grubConfig *cfg, const char *image,
3529	int i = 1;	const char *prefix, const char *addArgs,
3530		const char *removeArgs, int multibootArgs)
3531		{
3532		struct singleEntry *entry;
3533		struct singleLine *line, *rootLine;
3534		int index = 0;
3535		int i, k;
3536		const char **newArgs, **oldArgs;
3537		const char **arg;
3538		int useKernelArgs, useRoot;
3539		int firstElement;
3540		int *usedElements;
3541		int doreplace;
3542
3543	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (!image)
3544	while (findEntryByPath(config, buf, NULL, NULL)) {	return 0;
3545	sprintf(numBuf, "%d", i++);
3546	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	if (!addArgs) {
3547		newArgs = malloc(sizeof(*newArgs));
3548		*newArgs = NULL;
3549		} else {
3550		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3551		fprintf(stderr,
3552		_("grubby: error separating arguments '%s'\n"),
3553		addArgs);
3554		return 1;
3555		}
3556	}	}
3557
3558	newKernelTitle = buf + 6;	if (!removeArgs) {
3559	}	oldArgs = malloc(sizeof(*oldArgs));
3560		*oldArgs = NULL;
3561		} else {
3562		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3563		fprintf(stderr,
3564		_("grubby: error separating arguments '%s'\n"),
3565		removeArgs);
3566		free(newArgs);
3567		return 1;
3568		}
3569		}
3570
3571	new = malloc(sizeof(*new));	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3572	new->skip = 0;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3573
3574	if (template) {	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3575	for (masterLine = template->lines;	&& !multibootArgs);
3576	masterLine && (tmplLine = lineDup(masterLine));
3577	lineFree(tmplLine), masterLine = masterLine->next)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3578	{
3579	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	if (multibootArgs && !entry->multiboot)
3580		continue;
3581	/* skip comments */
3582	chptr = tmplLine->indent;	/* Determine where to put the args.  If this config supports
3583	while (*chptr && isspace(*chptr)) chptr++;	* LT_KERNELARGS, use that.  Otherwise use
3584	if (*chptr == '#') continue;	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3585		*/
3586	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {	if (useKernelArgs) {
3587	if (!template->multiboot && (needs & NEED_MB)) {	line = getLineByType(LT_KERNELARGS, entry->lines);
3588	/* it's not a multiboot template and this is the kernel	if (!line) {
3589	* line.  Try to be intelligent about inserting the	/* no LT_KERNELARGS, need to add it */
3590	* hypervisor at the same time.	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3591	*/	cfg->secondaryIndent, NULL);
3592	if (config->cfi->mbHyperFirst) {	}
3593	/* insert the hypervisor first */	firstElement = 1;
3594	newLine = addLine(new, config->cfi, LT_HYPER,
3595	tmplLine->indent,	} else if (multibootArgs) {
3596	newMBKernel + strlen(prefix));	line = getLineByType(LT_HYPER, entry->lines);
3597	/* set up for adding the kernel line */	if (!line) {
3598	free(tmplLine->indent);	/* a multiboot entry without LT_HYPER? */
3599	tmplLine->indent = strdup(config->secondaryIndent);	continue;
3600	needs &= ~NEED_MB;	}
3601	}	firstElement = 2;
3602	if (needs & NEED_KERNEL) {
3603	/* use addLineTmpl to preserve line elements,	} else {
3604	* otherwise we could just call addLine.  Unfortunately	line =
3605	* this means making some changes to the template	getLineByType(LT_KERNEL | LT_MBMODULE |
3606	* such as the indent change above and the type	LT_KERNEL_EFI | LT_KERNEL_16,
3607	* change below.	entry->lines);
3608		if (!line) {
3609		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3610		continue;
3611		}
3612		firstElement = 2;
3613		}
3614
3615		/* handle the elilo case which does:
3616		*   append="hypervisor args -- kernel args"
3617		*/
3618		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3619		/* this is a multiboot entry, make sure there's
3620		* -- on the args line
3621	*/	*/
3622	struct keywordTypes * mbm_kw =	for (i = firstElement; i < line->numElements; i++) {
3623	getKeywordByType(LT_MBMODULE, config->cfi);	if (!strcmp(line->elements[i].item, "--"))
3624	if (mbm_kw) {	break;
3625	tmplLine->type = LT_MBMODULE;	}
3626	free(tmplLine->elements[0].item);	if (i == line->numElements) {
3627	tmplLine->elements[0].item = strdup(mbm_kw->key);	/* assume all existing args are kernel args,
3628	}	* prepend -- to make it official
3629	newLine = addLineTmpl(new, tmplLine, newLine,	*/
3630	newKernelPath + strlen(prefix), config->cfi);	insertElement(line, "--", firstElement,
3631	needs &= ~NEED_KERNEL;	cfg->cfi);
3632	}	i = firstElement;
3633	if (needs & NEED_MB) { /* !mbHyperFirst */	}
3634	newLine = addLine(new, config->cfi, LT_HYPER,	if (!multibootArgs) {
3635	config->secondaryIndent,	/* kernel args start after the -- */
3636	newMBKernel + strlen(prefix));	firstElement = i + 1;
3637	needs &= ~NEED_MB;	}
3638	}	} else if (cfg->cfi->mbConcatArgs) {
3639	} else if (needs & NEED_KERNEL) {	/* this is a non-multiboot entry, remove hyper args */
3640	newLine = addLineTmpl(new, tmplLine, newLine,	for (i = firstElement; i < line->numElements; i++) {
3641	newKernelPath + strlen(prefix), config->cfi);	if (!strcmp(line->elements[i].item, "--"))
3642	needs &= ~NEED_KERNEL;	break;
3643	}	}
3644		if (i < line->numElements) {
3645	} else if (tmplLine->type == LT_HYPER &&	/* remove args up to -- */
3646	tmplLine->numElements >= 2) {	while (strcmp
3647	if (needs & NEED_MB) {	(line->elements[firstElement].item,
3648	newLine = addLineTmpl(new, tmplLine, newLine,	"--"))
3649	newMBKernel + strlen(prefix), config->cfi);	removeElement(line, firstElement);
3650	needs &= ~NEED_MB;	/* remove -- */
3651	}	removeElement(line, firstElement);
3652		}
3653	} else if (tmplLine->type == LT_MBMODULE &&	}
3654	tmplLine->numElements >= 2) {
3655	if (new->multiboot) {	usedElements = calloc(line->numElements, sizeof(*usedElements));
3656	if (needs & NEED_KERNEL) {
3657	newLine = addLineTmpl(new, tmplLine, newLine,	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3658	newKernelPath +
3659	strlen(prefix), config->cfi);	doreplace = 1;
3660	needs &= ~NEED_KERNEL;	for (i = firstElement; i < line->numElements; i++) {
3661	} else if (config->cfi->mbInitRdIsModule &&	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3662	(needs & NEED_INITRD)) {	!strcmp(line->elements[i].item, "--")) {
3663	char *initrdVal;	/* reached the end of hyper args, insert here */
3664	initrdVal = getInitrdVal(config, prefix, tmplLine,	doreplace = 0;
3665	newKernelInitrd, extraInitrds,	break;
3666	extraInitrdCount);	}
3667	newLine = addLineTmpl(new, tmplLine, newLine,	if (usedElements[i])
3668	initrdVal, config->cfi);	continue;
3669	free(initrdVal);	if (!argMatch(line->elements[i].item, *arg)) {
3670	needs &= ~NEED_INITRD;	usedElements[i] = 1;
3671	}	break;
3672	} else if (needs & NEED_KERNEL) {	}
3673	/* template is multi but new is not,	}
3674	* insert the kernel in the first module slot
3675	*/	if (i < line->numElements && doreplace) {
3676	tmplLine->type = preferredLineType(LT_KERNEL, config->cfi);	/* direct replacement */
3677	free(tmplLine->elements[0].item);	free(line->elements[i].item);
3678	tmplLine->elements[0].item =	line->elements[i].item = strdup(*arg);
3679	strdup(getKeywordByType(tmplLine->type,
3680	config->cfi)->key);	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3681	newLine = addLineTmpl(new, tmplLine, newLine,	/* root= replacement */
3682	newKernelPath + strlen(prefix),	rootLine = getLineByType(LT_ROOT, entry->lines);
3683	config->cfi);	if (rootLine) {
3684	needs &= ~NEED_KERNEL;	free(rootLine->elements[1].item);
3685	} else if (needs & NEED_INITRD) {	rootLine->elements[1].item =
3686	char *initrdVal;	strdup(*arg + 5);
3687	/* template is multi but new is not,	} else {
3688	* insert the initrd in the second module slot	rootLine =
3689	*/	addLine(entry, cfg->cfi, LT_ROOT,
3690	tmplLine->type = preferredLineType(LT_INITRD, config->cfi);	cfg->secondaryIndent,
3691	free(tmplLine->elements[0].item);	*arg + 5);
3692	tmplLine->elements[0].item =	}
3693	strdup(getKeywordByType(tmplLine->type,	}
3694	config->cfi)->key);
3695	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);	else {
3696	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);	/* insert/append */
3697	free(initrdVal);	insertElement(line, *arg, i, cfg->cfi);
3698	needs &= ~NEED_INITRD;	usedElements =
3699	}	realloc(usedElements,
3700		line->numElements *
3701	} else if (isinitrd(tmplLine->type) && tmplLine->numElements >= 2) {	sizeof(*usedElements));
3702	if (needs & NEED_INITRD &&	memmove(&usedElements[i + 1], &usedElements[i],
3703	new->multiboot && !template->multiboot &&	line->numElements - i - 1);
3704	config->cfi->mbInitRdIsModule) {	usedElements[i] = 1;
3705	/* make sure we don't insert the module initrd
3706	* before the module kernel... if we don't do it here,	/* if we updated a root= here even though
3707	* it will be inserted following the template.	* there is a LT_ROOT available we need to
3708	*/	* remove the LT_ROOT entry (this will happen
3709	if (!needs & NEED_KERNEL) {	* if we switch from a device to a label) */
3710	char *initrdVal;	if (useRoot && !strncmp(*arg, "root=", 5)) {
3711		rootLine =
3712	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);	getLineByType(LT_ROOT,
3713	newLine = addLine(new, config->cfi, LT_MBMODULE,	entry->lines);
3714	config->secondaryIndent,	if (rootLine)
3715	initrdVal);	removeLine(entry, rootLine);
3716	free(initrdVal);	}
3717	needs &= ~NEED_INITRD;	}
3718	}	}
3719	} else if (needs & NEED_INITRD) {
3720	char *initrdVal;	free(usedElements);
3721	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
3722	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);	for (arg = oldArgs; *arg; arg++) {
3723	free(initrdVal);	for (i = firstElement; i < line->numElements; i++) {
3724	needs &= ~NEED_INITRD;	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3725	}	!strcmp(line->elements[i].item, "--"))
3726		/* reached the end of hyper args, stop here */
3727	} else if (tmplLine->type == LT_MENUENTRY &&	break;
3728	(needs & NEED_TITLE)) {	if (!argMatch(line->elements[i].item, *arg)) {
3729	requote(tmplLine, config->cfi);	removeElement(line, i);
3730	char *nkt = malloc(strlen(newKernelTitle)+3);	break;
3731	strcpy(nkt, "'");	}
3732	strcat(nkt, newKernelTitle);	}
3733	strcat(nkt, "'");	/* handle removing LT_ROOT line too */
3734	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);	if (useRoot && !strncmp(*arg, "root=", 5)) {
3735	free(nkt);	rootLine = getLineByType(LT_ROOT, entry->lines);
3736	needs &= ~NEED_TITLE;	if (rootLine)
3737	} else if (tmplLine->type == LT_TITLE &&	removeLine(entry, rootLine);
3738	(needs & NEED_TITLE)) {	}
3739	if (tmplLine->numElements >= 2) {	}
3740	newLine = addLineTmpl(new, tmplLine, newLine,
3741	newKernelTitle, config->cfi);	if (line->numElements == 1) {
3742	needs &= ~NEED_TITLE;	/* don't need the line at all (note it has to be a
3743	} else if (tmplLine->numElements == 1 &&	LT_KERNELARGS for this to happen */
3744	config->cfi->titleBracketed) {	removeLine(entry, line);
3745	/* 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);
	}
3746	}	}
3747
3748	} else {	free(newArgs);
3749	/* don't have a template, so start the entry with the	free(oldArgs);
3750	* appropriate starting line
3751	*/	return 0;
3752	switch (config->cfi->entryStart) {	}
3753	case LT_KERNEL:
3754	case LT_KERNEL_EFI:	int updateImage(struct grubConfig *cfg, const char *image,
3755	if (new->multiboot && config->cfi->mbHyperFirst) {	const char *prefix, const char *addArgs,
3756	/* fall through to LT_HYPER */	const char *removeArgs,
3757	} else {	const char *addMBArgs, const char *removeMBArgs)
3758	newLine = addLine(new, config->cfi,	{
3759	preferredLineType(LT_KERNEL, config->cfi),	int rc = 0;
3760	config->primaryIndent,
3761	newKernelPath + strlen(prefix));	if (!image)
3762	needs &= ~NEED_KERNEL;	return rc;
3763	break;
3764		/* update the main args first... */
3765		if (addArgs || removeArgs)
3766		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3767		0);
3768		if (rc)
3769		return rc;
3770
3771		/* and now any multiboot args */
3772		if (addMBArgs || removeMBArgs)
3773		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3774		removeMBArgs, 1);
3775		return rc;
3776		}
3777
3778		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3779		const char *image, const char *prefix, const char *initrd,
3780		const char *title)
3781		{
3782		struct singleEntry *entry;
3783		struct singleLine *line, *kernelLine, *endLine = NULL;
3784		int index = 0;
3785
3786		if (!image)
3787		return 0;
3788
3789		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3790		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3791		if (!kernelLine)
3792		continue;
3793
3794		/* if title is supplied, the entry's title must match it. */
3795		if (title) {
3796		char *linetitle;
3797
3798		line =
3799		getLineByType(LT_TITLE | LT_MENUENTRY,
3800		entry->lines);
3801		if (!line)
3802		continue;
3803
3804		linetitle = extractTitle(cfg, line);
3805		if (!linetitle)
3806		continue;
3807		if (strcmp(title, linetitle)) {
3808		free(linetitle);
3809		continue;
3810		}
3811		free(linetitle);
3812	}	}
3813
3814	case LT_HYPER:	if (prefix) {
3815	newLine = addLine(new, config->cfi, LT_HYPER,	int prefixLen = strlen(prefix);
3816	config->primaryIndent,	if (!strncmp(initrd, prefix, prefixLen))
3817	newMBKernel + strlen(prefix));	initrd += prefixLen;
3818	needs &= ~NEED_MB;	}
3819	break;	endLine = getLineByType(LT_ENTRY_END, entry->lines);
3820		if (endLine)
3821		removeLine(entry, endLine);
3822		line =
3823		addLine(entry, cfg->cfi,
3824		preferredLineType(LT_MBMODULE, cfg->cfi),
3825		kernelLine->indent, initrd);
3826		if (!line)
3827		return 1;
3828		if (endLine) {
3829		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3830		if (!line)
3831		return 1;
3832		}
3833
	case LT_MENUENTRY: {
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLine(new, config->cfi, LT_MENUENTRY,
	config->primaryIndent, nkt);
	free(nkt);
	needs &= ~NEED_TITLE;
	needs |= NEED_END;
3834	break;	break;
3835	}	}
3836	case LT_TITLE:
3837	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	return 0;
3838	char * templabel;	}
3839	int x = 0, y = 0;
3840		int updateInitrd(struct grubConfig *cfg, const char *image,
3841	templabel = strdup(newKernelTitle);	const char *prefix, const char *initrd, const char *title)
3842	while( templabel[x]){	{
3843	if( templabel[x] == ' ' ){	struct singleEntry *entry;
3844	y = x;	struct singleLine *line, *kernelLine, *endLine = NULL;
3845	while( templabel[y] ){	int index = 0;
3846	templabel[y] = templabel[y+1];
3847	y++;	if (!image)
3848	}	return 0;
3849	}
3850	x++;	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3851		kernelLine =
3852		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3853		entry->lines);
3854		if (!kernelLine)
3855		continue;
3856
3857		/* if title is supplied, the entry's title must match it. */
3858		if (title) {
3859		char *linetitle;
3860
3861		line =
3862		getLineByType(LT_TITLE | LT_MENUENTRY,
3863		entry->lines);
3864		if (!line)
3865		continue;
3866
3867		linetitle = extractTitle(cfg, line);
3868		if (!linetitle)
3869		continue;
3870		if (strcmp(title, linetitle)) {
3871		free(linetitle);
3872		continue;
3873	}	}
3874	newLine = addLine(new, config->cfi, LT_TITLE,	free(linetitle);
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
3875	}	}
3876	needs &= ~NEED_TITLE;
3877		line =
3878		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3879		entry->lines);
3880		if (line)
3881		removeLine(entry, line);
3882		if (prefix) {
3883		int prefixLen = strlen(prefix);
3884		if (!strncmp(initrd, prefix, prefixLen))
3885		initrd += prefixLen;
3886		}
3887		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3888		if (endLine)
3889		removeLine(entry, endLine);
3890		enum lineType_e lt;
3891		switch (kernelLine->type) {
3892		case LT_KERNEL:
3893		lt = LT_INITRD;
3894		break;
3895		case LT_KERNEL_EFI:
3896		lt = LT_INITRD_EFI;
3897		break;
3898		case LT_KERNEL_16:
3899		lt = LT_INITRD_16;
3900		break;
3901		default:
3902		lt = preferredLineType(LT_INITRD, cfg->cfi);
3903		}
3904		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3905		if (!line)
3906		return 1;
3907		if (endLine) {
3908		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3909		if (!line)
3910		return 1;
3911		}
3912
3913	break;	break;
3914		}
3915
3916	default:	return 0;
3917	abort();	}
3918
3919		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3920		{
3921		int fd;
3922		unsigned char bootSect[512];
3923		int offset;
3924
3925		fd = open(device, O_RDONLY);
3926		if (fd < 0) {
3927		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3928		device, strerror(errno));
3929		return 1;
3930	}	}
	}
3931
3932	/* add the remainder of the lines, i.e. those that either	if (read(fd, bootSect, 512) != 512) {
3933	* weren't present in the template, or in the case of no template,	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3934	* all the lines following the entryStart.	device, strerror(errno));
3935	*/	return 1;
3936	if (needs & NEED_TITLE) {	}
3937	newLine = addLine(new, config->cfi, LT_TITLE,	close(fd);
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi))
	? LT_MBMODULE
	: preferredLineType(LT_KERNEL, config->cfi),
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi))
	? LT_MBMODULE
	: preferredLineType(LT_INITRD, config->cfi),
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
3938
3939	if (needs) {	/* first three bytes should match, a jmp short should be in there */
3940	printf(_("grubby: needs=%d, aborting\n"), needs);	if (memcmp(boot, bootSect, 3))
3941	abort();	return 0;
	}
3942
3943	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (boot[1] == JMP_SHORT_OPCODE) {
3944	newMBKernelArgs, NULL)) return 1;	offset = boot[2] + 2;
3945		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3946		offset = (boot[3] << 8) + boot[2] + 2;
3947		} else if (boot[0] == JMP_SHORT_OPCODE) {
3948		offset = boot[1] + 2;
3949		/*
3950		* it looks like grub, when copying stage1 into the mbr,
3951		* patches stage1 right after the JMP location, replacing
3952		* other instructions such as JMPs for NOOPs. So, relax the
3953		* check a little bit by skipping those different bytes.
3954		*/
3955		if ((bootSect[offset + 1] == NOOP_OPCODE)
3956		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3957		offset = offset + 3;
3958		}
3959		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3960		offset = (boot[2] << 8) + boot[1] + 2;
3961		} else {
3962		return 0;
3963		}
3964
3965	return 0;	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3966		return 0;
3967
3968		return 2;
3969	}	}
3970
3971	static void traceback(int signum)	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3972	{	{
3973	void *array[40];	int fd;
3974	size_t size;	char buf[65536];
3975		char *end;
3976		char *chptr;
3977		char *chptr2;
3978		int rc;
3979
3980		/* it's on raid; we need to parse /proc/mdstat and check all of the
3981		*raw* devices listed in there */
3982
3983		if (!strncmp(mdDev, "/dev/", 5))
3984		mdDev += 5;
3985
3986		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3987		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3988		strerror(errno));
3989		return 2;
3990		}
3991
3992		rc = read(fd, buf, sizeof(buf) - 1);
3993		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3994		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3995		strerror(errno));
3996		close(fd);
3997		return 2;
3998		}
3999		close(fd);
4000		buf[rc] = '\0';
4001
4002	signal(SIGSEGV, SIG_DFL);	chptr = buf;
4003	memset(array, '\0', sizeof (array));	while (*chptr) {
4004	size = backtrace(array, 40);	end = strchr(chptr, '\n');
4005		if (!end)
4006	fprintf(stderr, "grubby received SIGSEGV!  Backtrace (%ld):\n",	break;
4007	(unsigned long)size);	*end = '\0';
4008	backtrace_symbols_fd(array, size, STDERR_FILENO);
4009	exit(1);	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4010	}	chptr[strlen(mdDev)] == ' ') {
4011
4012	int main(int argc, const char ** argv) {	/* found the device */
4013	poptContext optCon;	while (*chptr && *chptr != ':')
4014	const char * grubConfig = NULL;	chptr++;
4015	char * outputFile = NULL;	chptr++;
4016	int arg = 0;	while (*chptr && isspace(*chptr))
4017	int flags = 0;	chptr++;
4018	int badImageOkay = 0;
4019	int configureGrub2 = 0;	/* skip the "active" bit */
4020	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	while (*chptr && !isspace(*chptr))
4021	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	chptr++;
4022	int configureExtLinux = 0;	while (*chptr && isspace(*chptr))
4023	int bootloaderProbe = 0;	chptr++;
4024	int extraInitrdCount = 0;
4025	char * updateKernelPath = NULL;	/* skip the raid level */
4026	char * newKernelPath = NULL;	while (*chptr && !isspace(*chptr))
4027	char * removeKernelPath = NULL;	chptr++;
4028	char * newKernelArgs = NULL;	while (*chptr && isspace(*chptr))
4029	char * newKernelInitrd = NULL;	chptr++;
4030	char * newKernelTitle = NULL;
4031	char * newKernelVersion = NULL;	/* everything else is partition stuff */
4032	char * newMBKernel = NULL;	while (*chptr) {
4033	char * newMBKernelArgs = NULL;	chptr2 = chptr;
4034	char * removeMBKernelArgs = NULL;	while (*chptr2 && *chptr2 != '[')
4035	char * removeMBKernel = NULL;	chptr2++;
4036	char * bootPrefix = NULL;	if (!*chptr2)
4037	char * defaultKernel = NULL;	break;
	char * removeArgs = NULL;
	char * kernelInfo = NULL;
	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
	const char * chptr = NULL;
	struct configFileInfo * cfi = NULL;
	struct grubConfig * config;
	struct singleEntry * template = NULL;
	int copyDefault = 0, makeDefault = 0;
	int displayDefault = 0;
	int displayDefaultIndex = 0;
	int displayDefaultTitle = 0;
	int defaultIndex = -1;
	struct poptOption options[] = {
	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
	_("add an entry for the specified kernel"), _("kernel-path") },
	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
	_("add an entry for the specified multiboot kernel"), NULL },
	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check which bootloader is installed on boot sector") },
	#endif
	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
	_("path to grub config file to update (\"-\" for stdin)"),
	_("path") },
	{ "copy-default", 0, 0, &copyDefault, 0,
	_("use the default boot entry as a template for the new entry "
	"being added; if the default is not a linux image, or if "
	"the kernel referenced by the default image does not exist, "
	"the first linux entry whose kernel does exist is used as the "
	"template"), NULL },
	{ "debug", 0, 0, &debug, 0,
	_("print debugging information for failures") },
	{ "default-kernel", 0, 0, &displayDefault, 0,
	_("display the path of the default kernel") },
	{ "default-index", 0, 0, &displayDefaultIndex, 0,
	_("display the index of the default kernel") },
	{ "default-title", 0, 0, &displayDefaultTitle, 0,
	_("display the title of the default kernel") },
	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
	_("configure elilo bootloader") },
	{ "efi", 0, POPT_ARG_NONE, &isEfi, 0,
	_("force grub2 stanzas to use efi") },
	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
	_("configure extlinux bootloader (from syslinux)") },
	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxiliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
	_("make the given entry index the default entry"),
	_("entry-index") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	int i = 0;
	for (int j = 1; j < argc; j++)
	i += strlen(argv[j]) + 1;
	saved_command_line = malloc(i);
	if (!saved_command_line) {
	fprintf(stderr, "grubby: %m\n");
	exit(1);
	}
	saved_command_line[0] = '\0';
	for (int j = 1; j < argc; j++) {
	strcat(saved_command_line, argv[j]);
	strncat(saved_command_line, j == argc -1 ? "" : " ", 1);
	}
4038
4039	optCon = poptGetContext("grubby", argc, argv, options, 0);	/* yank off the numbers at the end */
4040	poptReadDefaultConfig(optCon, 1);	chptr2--;
4041		while (isdigit(*chptr2) && chptr2 > chptr)
4042		chptr2--;
4043		chptr2++;
4044		*chptr2 = '\0';
4045
4046		/* Better, now we need the /dev/ back. We're
4047		* done with everything before this point, so
4048		* we can just put the /dev/ part there.
4049		* There will always be room. */
4050		memcpy(chptr - 5, "/dev/", 5);
4051		rc = checkDeviceBootloader(chptr - 5, boot);
4052		if (rc != 2) {
4053		return rc;
4054		}
4055
4056		chptr = chptr2 + 1;
4057		/* skip the [11] bit */
4058		while (*chptr && !isspace(*chptr))
4059		chptr++;
4060		/* and move to the next one */
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063		}
4064
4065	while ((arg = poptGetNextOpt(optCon)) >= 0) {	/*  we're good to go */
4066	switch (arg) {	return 2;
4067	case 'v':	}
4068	printf("grubby version %s\n", VERSION);
4069	exit(0);	chptr = end + 1;
4070	break;	}
4071	case 'i':
4072	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	fprintf(stderr,
4073	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4074	} else {	mdDev);
4075	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	return 0;
4076		}
4077
4078		int checkForLilo(struct grubConfig *config)
4079		{
4080		int fd;
4081		unsigned char boot[512];
4082		struct singleLine *line;
4083
4084		for (line = config->theLines; line; line = line->next)
4085		if (line->type == LT_BOOT)
4086		break;
4087
4088		if (!line) {
4089		fprintf(stderr,
4090		_
4091		("grubby: no boot line found in lilo configuration\n"));
4092	return 1;	return 1;
	}
	break;
4093	}	}
	}
4094
4095	if (arg < -1) {	if (line->numElements != 2)
4096	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	return 1;
4097	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4098	poptStrerror(arg));	fd = open("/boot/boot.b", O_RDONLY);
4099	return 1;	if (fd < 0) {
4100	}	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4101		"/boot/boot.b", strerror(errno));
4102		return 1;
4103		}
4104
4105		if (read(fd, boot, 512) != 512) {
4106		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4107		"/boot/boot.b", strerror(errno));
4108		return 1;
4109		}
4110		close(fd);
4111
4112		if (!strncmp("/dev/md", line->elements[1].item, 7))
4113		return checkLiloOnRaid(line->elements[1].item, boot);
4114
4115		return checkDeviceBootloader(line->elements[1].item, boot);
4116		}
4117
4118		int checkForGrub2(struct grubConfig *config)
4119		{
4120		if (!access("/etc/grub.d/", R_OK))
4121		return 2;
4122
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4123	return 1;	return 1;
4124	}	}
4125
4126		int checkForGrub(struct grubConfig *config)
4127		{
4128		int fd;
4129		unsigned char bootSect[512];
4130		char *boot;
4131		int onSuse = isSuseSystem();
4132
4133		if (onSuse) {
4134		if (parseSuseGrubConf(NULL, &boot))
4135		return 0;
4136		} else {
4137		if (parseSysconfigGrub(NULL, &boot))
4138		return 0;
4139		}
4140
4141		/* assume grub is not installed -- not an error condition */
4142		if (!boot)
4143		return 0;
4144
4145		fd = open("/boot/grub/stage1", O_RDONLY);
4146		if (fd < 0)
4147		/* this doesn't exist if grub hasn't been installed */
4148		return 0;
4149
4150		if (read(fd, bootSect, 512) != 512) {
4151		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4152		"/boot/grub/stage1", strerror(errno));
4153		close(fd);
4154		return 1;
4155		}
4156		close(fd);
4157
4158		/* The more elaborate checks do not work on SuSE. The checks done
4159		* seem to be reasonble (at least for now), so just return success
4160		*/
4161		if (onSuse)
4162		return 2;
4163
4164		return checkDeviceBootloader(boot, bootSect);
4165		}
4166
4167		int checkForExtLinux(struct grubConfig *config)
4168		{
4169		int fd;
4170		unsigned char bootSect[512];
4171		char *boot;
4172		char executable[] = "/boot/extlinux/extlinux";
4173
4174		printf("entered: checkForExtLinux()\n");
4175
4176		if (parseSysconfigGrub(NULL, &boot))
4177		return 0;
4178
4179		/* assume grub is not installed -- not an error condition */
4180		if (!boot)
4181		return 0;
4182
4183		fd = open(executable, O_RDONLY);
4184		if (fd < 0)
4185		/* this doesn't exist if grub hasn't been installed */
4186		return 0;
4187
4188		if (read(fd, bootSect, 512) != 512) {
4189		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4190		executable, strerror(errno));
4191		return 1;
4192		}
4193		close(fd);
4194
4195		return checkDeviceBootloader(boot, bootSect);
4196		}
4197
4198		int checkForYaboot(struct grubConfig *config)
4199		{
4200		/*
4201		* This is a simplistic check that we consider good enough for own puporses
4202		*
4203		* If we were to properly check if yaboot is *installed* we'd need to:
4204		* 1) get the system boot device (LT_BOOT)
4205		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4206		*    the content on the boot device
4207		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4208		* 4) check again if binary and boot device contents match
4209		*/
4210		if (!access("/etc/yaboot.conf", R_OK))
4211		return 2;
4212
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4213	return 1;	return 1;
4214	} else if (bootloaderProbe && grubConfig) {	}
4215	fprintf(stderr,
4216	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4217		{
4218		if (!access("/etc/elilo.conf", R_OK))
4219		return 2;
4220
4221	return 1;	return 1;
4222	} else if (configureGrub2) {	}
4223	cfi = &grub2ConfigType;
4224	} else if (configureLilo) {	static char *getRootSpecifier(char *str)
4225	cfi = &liloConfigType;	{
4226	} else if (configureGrub) {	char *idx, *rootspec = NULL;
4227	cfi = &grubConfigType;
4228	} else if (configureELilo) {	if (*str == '(') {
4229	cfi = &eliloConfigType;	idx = rootspec = strdup(str);
4230	} else if (configureYaboot) {	while (*idx && (*idx != ')') && (!isspace(*idx)))
4231	cfi = &yabootConfigType;	idx++;
4232	} else if (configureSilo) {	*(++idx) = '\0';
4233	cfi = &siloConfigType;	}
4234	} else if (configureZipl) {	return rootspec;
4235	cfi = &ziplConfigType;	}
4236	} else if (configureExtLinux) {
4237	cfi = &extlinuxConfigType;	static char *getInitrdVal(struct grubConfig *config,
4238	useextlinuxmenu=1;	const char *prefix, struct singleLine *tmplLine,
4239	}	const char *newKernelInitrd,
4240		const char **extraInitrds, int extraInitrdCount)
4241		{
4242		char *initrdVal, *end;
4243		int i;
4244		size_t totalSize;
4245		size_t prefixLen;
4246		char separatorChar;
4247
4248		prefixLen = strlen(prefix);
4249		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4250
4251		for (i = 0; i < extraInitrdCount; i++) {
4252		totalSize += sizeof(separatorChar);
4253		totalSize += strlen(extraInitrds[i]) - prefixLen;
4254		}
4255
4256		initrdVal = end = malloc(totalSize);
4257
4258		end = stpcpy(end, newKernelInitrd + prefixLen);
4259
4260		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4261		for (i = 0; i < extraInitrdCount; i++) {
4262		const char *extraInitrd;
4263		int j;
4264
4265		extraInitrd = extraInitrds[i] + prefixLen;
4266		/* Don't add entries that are already there */
4267		if (tmplLine != NULL) {
4268		for (j = 2; j < tmplLine->numElements; j++)
4269		if (strcmp
4270		(extraInitrd,
4271		tmplLine->elements[j].item) == 0)
4272		break;
4273
4274		if (j != tmplLine->numElements)
4275		continue;
4276		}
4277
4278		*end++ = separatorChar;
4279		end = stpcpy(end, extraInitrd);
4280		}
4281
4282		return initrdVal;
4283		}
4284
4285		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4286		const char *prefix,
4287		const char *newKernelPath, const char *newKernelTitle,
4288		const char *newKernelArgs, const char *newKernelInitrd,
4289		const char **extraInitrds, int extraInitrdCount,
4290		const char *newMBKernel, const char *newMBKernelArgs,
4291		const char *newDevTreePath, int newIndex)
4292		{
4293		struct singleEntry *new, *entry, *prev = NULL;
4294		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4295		int needs;
4296		char *indexs;
4297		char *chptr;
4298		int rc;
4299
4300		if (!newKernelPath)
4301		return 0;
4302
4303		rc = asprintf(&indexs, "%d", newIndex);
4304		if (rc < 0)
4305		return 1;
4306
4307	if (!cfi) {	/* if the newKernelTitle is too long silently munge it into something
4308	if (grub2FindConfig(&grub2ConfigType))	* we can live with. truncating is first check, then we'll just mess with
4309	cfi = &grub2ConfigType;	* it until it looks better */
4310		if (config->cfi->maxTitleLength &&
4311		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4312		char *buf = alloca(config->cfi->maxTitleLength + 7);
4313		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4314		int i = 1;
4315
4316		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4317		newKernelTitle);
4318		while (findEntryByPath(config, buf, NULL, NULL)) {
4319		sprintf(numBuf, "%d", i++);
4320		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4321		}
4322
4323		newKernelTitle = buf + 6;
4324		}
4325
4326		new = malloc(sizeof(*new));
4327		new->skip = 0;
4328		new->multiboot = 0;
4329		new->lines = NULL;
4330		entry = config->entries;
4331		for (unsigned int i = 0; i < newIndex; i++) {
4332		if (!entry)
4333		break;
4334		prev = entry;
4335		entry = entry->next;
4336		}
4337		new->next = entry;
4338
4339		if (prev)
4340		prev->next = new;
4341	else	else
4342	#ifdef __ia64__	config->entries = new;
	cfi = &eliloConfigType;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
4343
4344	if (!grubConfig) {	/* copy/update from the template */
4345	if (cfi->findConfig)	needs = NEED_KERNEL | NEED_TITLE;
4346	grubConfig = cfi->findConfig(cfi);	if (newKernelInitrd)
4347	if (!grubConfig)	needs |= NEED_INITRD;
4348	grubConfig = cfi->defaultConfig;	if (newMBKernel) {
4349	}	needs |= NEED_MB;
4350		new->multiboot = 1;
4351		}
4352		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4353		needs |= NEED_DEVTREE;
4354
4355		if (template) {
4356		for (masterLine = template->lines;
4357		masterLine && (tmplLine = lineDup(masterLine));
4358		lineFree(tmplLine), masterLine = masterLine->next) {
4359		dbgPrintf("addNewKernel processing %d\n",
4360		tmplLine->type);
4361
4362		/* skip comments */
4363		chptr = tmplLine->indent;
4364		while (*chptr && isspace(*chptr))
4365		chptr++;
4366		if (*chptr == '#')
4367		continue;
4368
4369		if (iskernel(tmplLine->type)
4370		&& tmplLine->numElements >= 2) {
4371		if (!template->multiboot && (needs & NEED_MB)) {
4372		/* it's not a multiboot template and
4373		* this is the kernel line.  Try to
4374		* be intelligent about inserting the
4375		* hypervisor at the same time.
4376		*/
4377		if (config->cfi->mbHyperFirst) {
4378		/* insert the hypervisor first */
4379		newLine =
4380		addLine(new, config->cfi,
4381		LT_HYPER,
4382		tmplLine->indent,
4383		newMBKernel +
4384		strlen(prefix));
4385		/* set up for adding the
4386		* kernel line */
4387		free(tmplLine->indent);
4388		tmplLine->indent =
4389		strdup(config->
4390		secondaryIndent);
4391		needs &= ~NEED_MB;
4392		}
4393		if (needs & NEED_KERNEL) {
4394		/* use addLineTmpl to
4395		* preserve line elements,
4396		* otherwise we could just
4397		* call addLine.
4398		* Unfortunately this means
4399		* making some changes to the
4400		* template such as the
4401		* indent change above and
4402		* the type change below.
4403		*/
4404		struct keywordTypes *mbm_kw =
4405		getKeywordByType
4406		(LT_MBMODULE, config->cfi);
4407		if (mbm_kw) {
4408		tmplLine->type =
4409		LT_MBMODULE;
4410		free(tmplLine->
4411		elements[0].item);
4412		tmplLine->elements[0].
4413		item =
4414		strdup(mbm_kw->key);
4415		}
4416		newLine =
4417		addLineTmpl(new, tmplLine,
4418		newLine,
4419		newKernelPath +
4420		strlen(prefix),
4421		config->cfi);
4422		needs &= ~NEED_KERNEL;
4423		}
4424		if (needs & NEED_MB) { /* !mbHyperFirst */
4425		newLine =
4426		addLine(new, config->cfi,
4427		LT_HYPER,
4428		config->
4429		secondaryIndent,
4430		newMBKernel +
4431		strlen(prefix));
4432		needs &= ~NEED_MB;
4433		}
4434		} else if (needs & NEED_KERNEL) {
4435		newLine =
4436		addLineTmpl(new, tmplLine, newLine,
4437		newKernelPath +
4438		strlen(prefix),
4439		config->cfi);
4440		needs &= ~NEED_KERNEL;
4441		}
4442
4443	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	} else if (tmplLine->type == LT_HYPER &&
4444	newKernelPath || removeKernelPath || makeDefault ||	tmplLine->numElements >= 2) {
4445	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	if (needs & NEED_MB) {
4446	(defaultIndex >= 0))) {	newLine =
4447	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	addLineTmpl(new, tmplLine, newLine,
4448		newMBKernel +
4449		strlen(prefix),
4450		config->cfi);
4451		needs &= ~NEED_MB;
4452		}
4453
4454		} else if (tmplLine->type == LT_MBMODULE &&
4455		tmplLine->numElements >= 2) {
4456		if (new->multiboot) {
4457		if (needs & NEED_KERNEL) {
4458		newLine =
4459		addLineTmpl(new, tmplLine,
4460		newLine,
4461		newKernelPath +
4462		strlen(prefix),
4463		config->cfi);
4464		needs &= ~NEED_KERNEL;
4465		} else if (config->cfi->mbInitRdIsModule
4466		&& (needs & NEED_INITRD)) {
4467		char *initrdVal;
4468		initrdVal =
4469		getInitrdVal(config, prefix,
4470		tmplLine,
4471		newKernelInitrd,
4472		extraInitrds,
4473		extraInitrdCount);
4474		newLine =
4475		addLineTmpl(new, tmplLine,
4476		newLine,
4477		initrdVal,
4478		config->cfi);
4479		free(initrdVal);
4480		needs &= ~NEED_INITRD;
4481		}
4482		} else if (needs & NEED_KERNEL) {
4483		/* template is multi but new is not,
4484		* insert the kernel in the first
4485		* module slot
4486		*/
4487		tmplLine->type =
4488		preferredLineType(LT_KERNEL,
4489		config->cfi);
4490		free(tmplLine->elements[0].item);
4491		tmplLine->elements[0].item =
4492		strdup(getKeywordByType
4493		(tmplLine->type,
4494		config->cfi)->key);
4495		newLine =
4496		addLineTmpl(new, tmplLine, newLine,
4497		newKernelPath +
4498		strlen(prefix),
4499		config->cfi);
4500		needs &= ~NEED_KERNEL;
4501		} else if (needs & NEED_INITRD) {
4502		char *initrdVal;
4503		/* template is multi but new is not,
4504		* insert the initrd in the second
4505		* module slot
4506		*/
4507		tmplLine->type =
4508		preferredLineType(LT_INITRD,
4509		config->cfi);
4510		free(tmplLine->elements[0].item);
4511		tmplLine->elements[0].item =
4512		strdup(getKeywordByType
4513		(tmplLine->type,
4514		config->cfi)->key);
4515		initrdVal =
4516		getInitrdVal(config, prefix,
4517		tmplLine,
4518		newKernelInitrd,
4519		extraInitrds,
4520		extraInitrdCount);
4521		newLine =
4522		addLineTmpl(new, tmplLine, newLine,
4523		initrdVal, config->cfi);
4524		free(initrdVal);
4525		needs &= ~NEED_INITRD;
4526		}
4527
4528		} else if (isinitrd(tmplLine->type)
4529		&& tmplLine->numElements >= 2) {
4530		if (needs & NEED_INITRD && new->multiboot
4531		&& !template->multiboot
4532		&& config->cfi->mbInitRdIsModule) {
4533		/* make sure we don't insert the
4534		* module initrd before the module
4535		* kernel... if we don't do it here,
4536		* it will be inserted following the
4537		* template.
4538		*/
4539		if (!needs & NEED_KERNEL) {
4540		char *initrdVal;
4541
4542		initrdVal =
4543		getInitrdVal(config, prefix,
4544		tmplLine,
4545		newKernelInitrd,
4546		extraInitrds,
4547		extraInitrdCount);
4548		newLine =
4549		addLine(new, config->cfi,
4550		LT_MBMODULE,
4551		config->
4552		secondaryIndent,
4553		initrdVal);
4554		free(initrdVal);
4555		needs &= ~NEED_INITRD;
4556		}
4557		} else if (needs & NEED_INITRD) {
4558		char *initrdVal;
4559		initrdVal =
4560		getInitrdVal(config, prefix,
4561		tmplLine,
4562		newKernelInitrd,
4563		extraInitrds,
4564		extraInitrdCount);
4565		newLine =
4566		addLineTmpl(new, tmplLine, newLine,
4567		initrdVal, config->cfi);
4568		free(initrdVal);
4569		needs &= ~NEED_INITRD;
4570		}
4571
4572		} else if (tmplLine->type == LT_MENUENTRY &&
4573		(needs & NEED_TITLE)) {
4574		requote(tmplLine, config->cfi);
4575		char *nkt = malloc(strlen(newKernelTitle) + 3);
4576		strcpy(nkt, "'");
4577		strcat(nkt, newKernelTitle);
4578		strcat(nkt, "'");
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, nkt,
4581		config->cfi);
4582		free(nkt);
4583		needs &= ~NEED_TITLE;
4584		} else if (tmplLine->type == LT_TITLE &&
4585		(needs & NEED_TITLE)) {
4586		if (tmplLine->numElements >= 2) {
4587		newLine =
4588		addLineTmpl(new, tmplLine, newLine,
4589		newKernelTitle,
4590		config->cfi);
4591		needs &= ~NEED_TITLE;
4592		} else if (tmplLine->numElements == 1 &&
4593		config->cfi->titleBracketed) {
4594		/* addLineTmpl doesn't handle
4595		* titleBracketed */
4596		newLine =
4597		addLine(new, config->cfi, LT_TITLE,
4598		tmplLine->indent,
4599		newKernelTitle);
4600		needs &= ~NEED_TITLE;
4601		}
4602		} else if (tmplLine->type == LT_ECHO) {
4603		requote(tmplLine, config->cfi);
4604		static const char *prefix = "'Loading ";
4605		if (tmplLine->numElements > 1 &&
4606		strstr(tmplLine->elements[1].item, prefix)
4607		&& masterLine->next
4608		&& iskernel(masterLine->next->type)) {
4609		char *newTitle =
4610		malloc(strlen(prefix) +
4611		strlen(newKernelTitle) + 2);
4612
4613		strcpy(newTitle, prefix);
4614		strcat(newTitle, newKernelTitle);
4615		strcat(newTitle, "'");
4616		newLine =
4617		addLine(new, config->cfi, LT_ECHO,
4618		tmplLine->indent, newTitle);
4619		free(newTitle);
4620		} else {
4621		/* pass through other lines from the
4622		* template */
4623		newLine =
4624		addLineTmpl(new, tmplLine, newLine,
4625		NULL, config->cfi);
4626		}
4627		} else if (tmplLine->type == LT_DEVTREE &&
4628		tmplLine->numElements == 2
4629		&& newDevTreePath) {
4630		newLine =
4631		addLineTmpl(new, tmplLine, newLine,
4632		newDevTreePath + strlen(prefix),
4633		config->cfi);
4634		needs &= ~NEED_DEVTREE;
4635		} else if (tmplLine->type == LT_ENTRY_END
4636		&& needs & NEED_DEVTREE) {
4637		const char *ndtp = newDevTreePath;
4638		if (!strncmp
4639		(newDevTreePath, prefix, strlen(prefix)))
4640		ndtp += strlen(prefix);
4641		newLine = addLine(new, config->cfi, LT_DEVTREE,
4642		config->secondaryIndent,
4643		ndtp);
4644		needs &= ~NEED_DEVTREE;
4645		newLine =
4646		addLineTmpl(new, tmplLine, newLine, NULL,
4647		config->cfi);
4648		} else {
4649		/* pass through other lines from the template */
4650		newLine =
4651		addLineTmpl(new, tmplLine, newLine, NULL,
4652		config->cfi);
4653		}
4654		}
4655
4656		} else {
4657		/* don't have a template, so start the entry with the
4658		* appropriate starting line
4659		*/
4660		switch (config->cfi->entryStart) {
4661		case LT_KERNEL:
4662		case LT_KERNEL_EFI:
4663		case LT_KERNEL_16:
4664		if (new->multiboot && config->cfi->mbHyperFirst) {
4665		/* fall through to LT_HYPER */
4666		} else {
4667		newLine = addLine(new, config->cfi,
4668		preferredLineType(LT_KERNEL,
4669		config->
4670		cfi),
4671		config->primaryIndent,
4672		newKernelPath +
4673		strlen(prefix));
4674		needs &= ~NEED_KERNEL;
4675		break;
4676		}
4677
4678		case LT_HYPER:
4679		newLine = addLine(new, config->cfi, LT_HYPER,
4680		config->primaryIndent,
4681		newMBKernel + strlen(prefix));
4682		needs &= ~NEED_MB;
4683		break;
4684
4685		case LT_MENUENTRY:{
4686		char *nkt = malloc(strlen(newKernelTitle) + 3);
4687		strcpy(nkt, "'");
4688		strcat(nkt, newKernelTitle);
4689		strcat(nkt, "'");
4690		newLine =
4691		addLine(new, config->cfi, LT_MENUENTRY,
4692		config->primaryIndent, nkt);
4693		free(nkt);
4694		needs &= ~NEED_TITLE;
4695		needs |= NEED_END;
4696		break;
4697		}
4698		case LT_TITLE:
4699		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4700		char *templabel;
4701		int x = 0, y = 0;
4702
4703		templabel = strdup(newKernelTitle);
4704		while (templabel[x]) {
4705		if (templabel[x] == ' ') {
4706		y = x;
4707		while (templabel[y]) {
4708		templabel[y] =
4709		templabel[y + 1];
4710		y++;
4711		}
4712		}
4713		x++;
4714		}
4715		newLine = addLine(new, config->cfi, LT_TITLE,
4716		config->primaryIndent,
4717		templabel);
4718		free(templabel);
4719		} else {
4720		newLine = addLine(new, config->cfi, LT_TITLE,
4721		config->primaryIndent,
4722		newKernelTitle);
4723		}
4724		needs &= ~NEED_TITLE;
4725		break;
4726
4727		default:
4728		abort();
4729		}
4730		}
4731
4732		struct singleLine *endLine = NULL;
4733		endLine = getLineByType(LT_ENTRY_END, new->lines);
4734		if (endLine) {
4735		removeLine(new, endLine);
4736		needs |= NEED_END;
4737		}
4738
4739		/* add the remainder of the lines, i.e. those that either
4740		* weren't present in the template, or in the case of no template,
4741		* all the lines following the entryStart.
4742		*/
4743		if (needs & NEED_TITLE) {
4744		newLine = addLine(new, config->cfi, LT_TITLE,
4745		config->secondaryIndent, newKernelTitle);
4746		needs &= ~NEED_TITLE;
4747		}
4748		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4749		newLine = addLine(new, config->cfi, LT_HYPER,
4750		config->secondaryIndent,
4751		newMBKernel + strlen(prefix));
4752		needs &= ~NEED_MB;
4753		}
4754		if (needs & NEED_KERNEL) {
4755		newLine = addLine(new, config->cfi,
4756		(new->multiboot
4757		&& getKeywordByType(LT_MBMODULE,
4758		config->cfi))
4759		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4760		config->
4761		cfi),
4762		config->secondaryIndent,
4763		newKernelPath + strlen(prefix));
4764		needs &= ~NEED_KERNEL;
4765		}
4766		if (needs & NEED_MB) {
4767		newLine = addLine(new, config->cfi, LT_HYPER,
4768		config->secondaryIndent,
4769		newMBKernel + strlen(prefix));
4770		needs &= ~NEED_MB;
4771		}
4772		if (needs & NEED_INITRD) {
4773		char *initrdVal;
4774		initrdVal =
4775		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4776		extraInitrds, extraInitrdCount);
4777		newLine =
4778		addLine(new, config->cfi,
4779		(new->multiboot
4780		&& getKeywordByType(LT_MBMODULE, config->cfi))
4781		? LT_MBMODULE : preferredLineType(LT_INITRD,
4782		config->cfi),
4783		config->secondaryIndent, initrdVal);
4784		free(initrdVal);
4785		needs &= ~NEED_INITRD;
4786		}
4787		if (needs & NEED_DEVTREE) {
4788		newLine = addLine(new, config->cfi, LT_DEVTREE,
4789		config->secondaryIndent, newDevTreePath);
4790		needs &= ~NEED_DEVTREE;
4791		}
4792
4793		/* NEEDS_END must be last on bootloaders that need it... */
4794		if (needs & NEED_END) {
4795		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4796		config->secondaryIndent, NULL);
4797		needs &= ~NEED_END;
4798		}
4799
4800		if (needs) {
4801		printf(_("grubby: needs=%d, aborting\n"), needs);
4802		abort();
4803		}
4804
4805		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4806		newMBKernelArgs, NULL)) {
4807		config->isModified = 1;
4808		return 1;
4809		}
4810
4811		return 0;
4812		}
4813
4814		int main(int argc, const char **argv)
4815		{
4816		poptContext optCon;
4817		const char *grubConfig = NULL;
4818		char *outputFile = NULL;
4819		int arg = 0;
4820		int flags = 0;
4821		int badImageOkay = 0;
4822		int configureGrub2 = 0;
4823		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4824		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4825		int configureExtLinux = 0;
4826		int bootloaderProbe = 0;
4827		int extraInitrdCount = 0;
4828		char *updateKernelPath = NULL;
4829		char *newKernelPath = NULL;
4830		char *removeKernelPath = NULL;
4831		char *newKernelArgs = NULL;
4832		char *newKernelInitrd = NULL;
4833		char *newKernelTitle = NULL;
4834		char *newDevTreePath = NULL;
4835		char *newMBKernel = NULL;
4836		char *newMBKernelArgs = NULL;
4837		int newIndex = 0;
4838		char *removeMBKernelArgs = NULL;
4839		char *removeMBKernel = NULL;
4840		char *bootPrefix = NULL;
4841		char *defaultKernel = NULL;
4842		char *removeArgs = NULL;
4843		char *kernelInfo = NULL;
4844		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4845		char *envPath = NULL;
4846		const char *chptr = NULL;
4847		struct configFileInfo *cfi = NULL;
4848		struct grubConfig *config;
4849		struct singleEntry *template = NULL;
4850		int copyDefault = 0, makeDefault = 0;
4851		int displayDefault = 0;
4852		int displayDefaultIndex = 0;
4853		int displayDefaultTitle = 0;
4854		int defaultIndex = -1;
4855		struct poptOption options[] = {
4856		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4857		_("add an entry for the specified kernel"), _("kernel-path")},
4858		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4859		_("add an entry for the specified multiboot kernel"), NULL},
4860		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4861		_("default arguments for the new kernel or new arguments for "
4862		"kernel being updated"), _("args")},
4863		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4864		_("default arguments for the new multiboot kernel or "
4865		"new arguments for multiboot kernel being updated"), NULL},
4866		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4867		_
4868		("don't sanity check images in boot entries (for testing only)"),
4869		NULL},
4870		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4871		_
4872		("filesystem which contains /boot directory (for testing only)"),
4873		_("bootfs")},
4874		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4875		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4876		_("check which bootloader is installed on boot sector")},
4877		#endif
4878		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4879		_("path to grub config file to update (\"-\" for stdin)"),
4880		_("path")},
4881		{"copy-default", 0, 0, &copyDefault, 0,
4882		_("use the default boot entry as a template for the new entry "
4883		"being added; if the default is not a linux image, or if "
4884		"the kernel referenced by the default image does not exist, "
4885		"the first linux entry whose kernel does exist is used as the "
4886		"template"), NULL},
4887		{"debug", 0, 0, &debug, 0,
4888		_("print debugging information for failures")},
4889		{"default-kernel", 0, 0, &displayDefault, 0,
4890		_("display the path of the default kernel")},
4891		{"default-index", 0, 0, &displayDefaultIndex, 0,
4892		_("display the index of the default kernel")},
4893		{"default-title", 0, 0, &displayDefaultTitle, 0,
4894		_("display the title of the default kernel")},
4895		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4896		_("device tree file for new stanza"), _("dtb-path")},
4897		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898		_("device tree directory for new stanza"), _("dtb-path")},
4899		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4900		_("configure elilo bootloader")},
4901		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4902		_("force grub2 stanzas to use efi")},
4903		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4904		_("path for environment data"),
4905		_("path")},
4906		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4907		_("configure extlinux bootloader (from syslinux)")},
4908		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4909		_("configure grub bootloader")},
4910		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4911		_("configure grub2 bootloader")},
4912		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4913		_("display boot information for specified kernel"),
4914		_("kernel-path")},
4915		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4916		_("initrd image for the new kernel"), _("initrd-path")},
4917		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4918		_
4919		("auxiliary initrd image for things other than the new kernel"),
4920		_("initrd-path")},
4921		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4922		_("configure lilo bootloader")},
4923		{"make-default", 0, 0, &makeDefault, 0,
4924		_("make the newly added entry the default boot entry"), NULL},
4925		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4926		_("path to output updated config file (\"-\" for stdout)"),
4927		_("path")},
4928		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4929		_("remove kernel arguments"), NULL},
4930		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4931		_("remove multiboot kernel arguments"), NULL},
4932		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4933		_("remove all entries for the specified kernel"),
4934		_("kernel-path")},
4935		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4936		_("remove all entries for the specified multiboot kernel"),
4937		NULL},
4938		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4939		_("make the first entry referencing the specified kernel "
4940		"the default"), _("kernel-path")},
4941		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4942		_("make the given entry index the default entry"),
4943		_("entry-index")},
4944		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4945		_("use the given index when creating a new entry"),
4946		_("entry-index")},
4947		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4948		_("configure silo bootloader")},
4949		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4950		_("title to use for the new kernel entry"), _("entry-title")},
4951		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4952		_("updated information for the specified kernel"),
4953		_("kernel-path")},
4954		{"version", 'v', 0, NULL, 'v',
4955		_("print the version of this program and exit"), NULL},
4956		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4957		_("configure yaboot bootloader")},
4958		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4959		_("configure zipl bootloader")},
4960		POPT_AUTOHELP {0, 0, 0, 0, 0}
4961		};
4962
4963		useextlinuxmenu = 0;
4964
4965		int i = 0;
4966		for (int j = 1; j < argc; j++)
4967		i += strlen(argv[j]) + 1;
4968		saved_command_line = malloc(i);
4969		if (!saved_command_line) {
4970		fprintf(stderr, "grubby: %m\n");
4971		exit(1);
4972		}
4973		saved_command_line[0] = '\0';
4974		for (int j = 1; j < argc; j++) {
4975		strcat(saved_command_line, argv[j]);
4976		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4977		}
4978
4979		optCon = poptGetContext("grubby", argc, argv, options, 0);
4980		poptReadDefaultConfig(optCon, 1);
4981
4982		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4983		switch (arg) {
4984		case 'v':
4985		printf("grubby version %s\n", VERSION);
4986		exit(0);
4987		break;
4988		case 'i':
4989		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4990		extraInitrds[extraInitrdCount++] =
4991		strdup(poptGetOptArg(optCon));
4992		} else {
4993		fprintf(stderr,
4994		_
4995		("grubby: extra initrd maximum is %d\n"),
4996		extraInitrdCount);
4997		return 1;
4998		}
4999		break;
5000		}
5001		}
5002
5003		if (arg < -1) {
5004		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5005		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5006		poptStrerror(arg));
5007		return 1;
5008		}
5009
5010		if ((chptr = poptGetArg(optCon))) {
5011		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5012		return 1;
5013		}
5014
5015		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5016		configureYaboot + configureSilo + configureZipl +
5017		configureExtLinux) > 1) {
5018		fprintf(stderr,
5019		_("grubby: cannot specify multiple bootloaders\n"));
5020		return 1;
5021		} else if (bootloaderProbe && grubConfig) {
5022		fprintf(stderr,
5023		_
5024		("grubby: cannot specify config file with --bootloader-probe\n"));
5025		return 1;
5026		} else if (configureGrub2) {
5027		cfi = &grub2ConfigType;
5028		if (envPath)
5029		cfi->envFile = envPath;
5030		} else if (configureLilo) {
5031		cfi = &liloConfigType;
5032		} else if (configureGrub) {
5033		cfi = &grubConfigType;
5034		} else if (configureELilo) {
5035		cfi = &eliloConfigType;
5036		} else if (configureYaboot) {
5037		cfi = &yabootConfigType;
5038		} else if (configureSilo) {
5039		cfi = &siloConfigType;
5040		} else if (configureZipl) {
5041		cfi = &ziplConfigType;
5042		} else if (configureExtLinux) {
5043		cfi = &extlinuxConfigType;
5044		useextlinuxmenu = 1;
5045		}
5046
5047		if (!cfi) {
5048		if (grub2FindConfig(&grub2ConfigType)) {
5049		cfi = &grub2ConfigType;
5050		if (envPath)
5051		cfi->envFile = envPath;
5052		} else
5053		#ifdef __ia64__
5054		cfi = &eliloConfigType;
5055		#elif __powerpc__
5056		cfi = &yabootConfigType;
5057		#elif __sparc__
5058		cfi = &siloConfigType;
5059		#elif __s390__
5060		cfi = &ziplConfigType;
5061		#elif __s390x__
5062		cfi = &ziplConfigtype;
5063		#else
5064		cfi = &grubConfigType;
5065		#endif
5066		}
5067
5068		if (!grubConfig) {
5069		if (cfi->findConfig)
5070		grubConfig = cfi->findConfig(cfi);
5071		if (!grubConfig)
5072		grubConfig = cfi->defaultConfig;
5073		}
5074
5075		if (bootloaderProbe && (displayDefault || kernelInfo ||
5076		newKernelPath || removeKernelPath || makeDefault
5077		|| defaultKernel || displayDefaultIndex
5078		|| displayDefaultTitle
5079		|| (defaultIndex >= 0))) {
5080		fprintf(stderr,
5081		_("grubby: --bootloader-probe may not be used with "
5082	"specified option"));	"specified option"));
5083	return 1;	return 1;
5084	}	}
5085
5086	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5087	removeKernelPath)) {	removeKernelPath)) {
5088	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5089	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5090	return 1;	return 1;
5091	}	}
5092
5093	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5094	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5095	return 1;	return 1;
5096	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5097	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5098	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5099	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5100	return 1;	return 1;
5101	}	}
5102
5103	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5104	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5105	"not be used together"));	"not be used together"));
5106	return 1;	return 1;
5107	}	}
5108
5109	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5110	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5111	"may not be used together\n"));	"may not be used together\n"));
5112	return 1;	return 1;
5113	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5114	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5115	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5116	return 1;	_("grubby: cannot make removed kernel the default\n"));
5117	} else if (defaultKernel && newKernelPath &&	return 1;
5118	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5119	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5120	defaultKernel = NULL;	makeDefault = 1;
5121	}	defaultKernel = NULL;
5122	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5123	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5124		_("grubby: --set-default and --set-default-index "
5125	"may not be used together\n"));	"may not be used together\n"));
5126	return 1;	return 1;
5127	}	}
5128
5129	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5130	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5131	"is used\n"));	_("grubby: output file must be specified if stdin "
5132	return 1;	"is used\n"));
5133	}	return 1;
5134		}
5135
5136	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5137	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5138	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5139	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5140	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5141	return 1;	return 1;
5142	}	}
5143
5144	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5145
5146	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5147	if (!bootPrefix) {	if (!bootPrefix) {
5148	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5149	if (!bootPrefix) return 1;	if (!bootPrefix)
5150		return 1;
5151		} else {
5152		/* this shouldn't end with a / */
5153		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5154		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5155		}
5156	} else {	} else {
5157	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5158	}	}
	} else {
	bootPrefix = "";
	}
5159
5160	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5161	extraInitrdCount > 0) {	fprintf(stderr,
5162	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5163	return 1;	cfi->defaultConfig);
5164	}	return 1;
5165		}
5166
5167	if (bootloaderProbe) {	if (bootloaderProbe) {
5168	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;
5169	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5170
5171	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5172	if (grub2config) {	if (grub2config) {
5173	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5174	if (!gconfig)	if (!gconfig)
5175	gr2c = 1;	gr2c = 1;
5176	else	else
5177	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5178	}	}
	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");
5179
5180	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5181	}	if (!access(grubconfig, F_OK)) {
5182		gconfig = readConfig(grubconfig, &grubConfigType);
5183		if (!gconfig)
5184		grc = 1;
5185		else
5186		grc = checkForGrub(gconfig);
5187		}
5188
5189	if (grubConfig == NULL) {	if (!access(liloConfigType.defaultConfig, F_OK)) {
5190	printf("Could not find bootloader configuration file.\n");	lconfig =
5191	exit(1);	readConfig(liloConfigType.defaultConfig,
5192	}	&liloConfigType);
5193		if (!lconfig)
5194		lrc = 1;
5195		else
5196		lrc = checkForLilo(lconfig);
5197		}
5198
5199	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5200	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5201		&eliloConfigType);
5202		if (!econfig)
5203		erc = 1;
5204		else
5205		erc = checkForElilo(econfig);
5206		}
5207
5208	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5209	struct singleLine * line;	lconfig =
5210	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5211	char * rootspec;	&extlinuxConfigType);
5212		if (!lconfig)
5213	if (config->defaultImage == -1) return 0;	extrc = 1;
5214	entry = findEntryByIndex(config, config->defaultImage);	else
5215	if (!entry) return 0;	extrc = checkForExtLinux(lconfig);
5216	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));
5217
5218	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5219		yconfig = readConfig(yabootConfigType.defaultConfig,
5220		&yabootConfigType);
5221		if (!yconfig)
5222		yrc = 1;
5223		else
5224		yrc = checkForYaboot(yconfig);
5225		}
5226
5227	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5228	struct singleLine * line;	|| erc == 1)
5229	struct singleEntry * entry;	return 1;
5230
5231	if (config->defaultImage == -1) return 0;	if (lrc == 2)
5232	entry = findEntryByIndex(config, config->defaultImage);	printf("lilo\n");
5233	if (!entry) return 0;	if (gr2c == 2)
5234		printf("grub2\n");
5235	if (!configureGrub2) {	if (grc == 2)
5236	line = getLineByType(LT_TITLE, entry->lines);	printf("grub\n");
5237	if (!line) return 0;	if (extrc == 2)
5238	printf("%s\n", line->elements[1].item);	printf("extlinux\n");
5239		if (yrc == 2)
5240		printf("yaboot\n");
5241		if (erc == 2)
5242		printf("elilo\n");
5243
5244	} else {	return 0;
5245	char * title;	}
5246
5247	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	if (grubConfig == NULL) {
5248	line = getLineByType(LT_MENUENTRY, entry->lines);	printf("Could not find bootloader configuration file.\n");
5249	if (!line) return 0;	exit(1);
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5250	}	}
	return 0;
5251
5252	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5253	if (config->defaultImage == -1) return 0;	if (!config)
5254	printf("%i\n", config->defaultImage);	return 1;
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5255
5256	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5257	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5258	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5259	bootPrefix, flags, defaultIndex);	char *rootspec;
5260	setFallbackImage(config, newKernelPath != NULL);
5261	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5262	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5263	if (updateKernelPath && newKernelInitrd) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5264	if (updateInitrd(config, updateKernelPath, bootPrefix,	cfi->defaultIsSaved)
5265	newKernelInitrd)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5266	}	entry = findEntryByIndex(config, config->defaultImage);
5267	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (!entry)
5268	newKernelTitle, newKernelArgs, newKernelInitrd,	return 0;
5269	(const char **)extraInitrds, extraInitrdCount,	if (!suitableImage(entry, bootPrefix, 0, flags))
5270	newMBKernel, newMBKernelArgs)) return 1;	return 0;
5271
5272		line =
5273	if (numEntries(config) == 0) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5274	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	LT_KERNEL_16, entry->lines);
5275	"Not writing out new config.\n"));	if (!line)
5276	return 1;	return 0;
5277	}
5278		rootspec = getRootSpecifier(line->elements[1].item);
5279		printf("%s%s\n", bootPrefix, line->elements[1].item +
5280		((rootspec != NULL) ? strlen(rootspec) : 0));
5281
5282		return 0;
5283
5284		} else if (displayDefaultTitle) {
5285		struct singleLine *line;
5286		struct singleEntry *entry;
5287
5288		if (config->defaultImage == NO_DEFAULT_ENTRY)
5289		return 0;
5290		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5291		cfi->defaultIsSaved)
5292		config->defaultImage = FIRST_ENTRY_INDEX;
5293		entry = findEntryByIndex(config, config->defaultImage);
5294		if (!entry)
5295		return 0;
5296
5297		if (!configureGrub2) {
5298		char *title;
5299		line = getLineByType(LT_TITLE, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = extractTitle(config, line);
5303		if (!title)
5304		return 0;
5305		printf("%s\n", title);
5306		free(title);
5307		} else {
5308		char *title;
5309
5310		dbgPrintf
5311		("This is GRUB2, default title is embeded in menuentry\n");
5312		line = getLineByType(LT_MENUENTRY, entry->lines);
5313		if (!line)
5314		return 0;
5315		title = grub2ExtractTitle(line);
5316		if (title)
5317		printf("%s\n", title);
5318		}
5319		return 0;
5320
5321		} else if (displayDefaultIndex) {
5322		if (config->defaultImage == NO_DEFAULT_ENTRY)
5323		return 0;
5324		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5325		cfi->defaultIsSaved)
5326		config->defaultImage = FIRST_ENTRY_INDEX;
5327		printf("%i\n", config->defaultImage);
5328		return 0;
5329
5330		} else if (kernelInfo)
5331		return displayInfo(config, kernelInfo, bootPrefix);
5332
5333		if (copyDefault) {
5334		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5335		if (!template)
5336		return 1;
5337		}
5338
5339		markRemovedImage(config, removeKernelPath, bootPrefix);
5340		markRemovedImage(config, removeMBKernel, bootPrefix);
5341		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5342		makeDefault, bootPrefix, flags, defaultIndex,
5343		newIndex);
5344		setFallbackImage(config, newKernelPath != NULL);
5345		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5346		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5347		return 1;
5348		if (updateKernelPath && newKernelInitrd) {
5349		if (newMBKernel) {
5350		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5351		bootPrefix, newKernelInitrd,
5352		newKernelTitle))
5353		return 1;
5354		} else {
5355		if (updateInitrd(config, updateKernelPath, bootPrefix,
5356		newKernelInitrd, newKernelTitle))
5357		return 1;
5358		}
5359		}
5360		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5361		newKernelTitle, newKernelArgs, newKernelInitrd,
5362		(const char **)extraInitrds, extraInitrdCount,
5363		newMBKernel, newMBKernelArgs, newDevTreePath,
5364		newIndex))
5365		return 1;
5366
5367		if (numEntries(config) == 0) {
5368		fprintf(stderr,
5369		_("grubby: doing this would leave no kernel entries. "
5370		"Not writing out new config.\n"));
5371		return 1;
5372		}
5373
5374	if (!outputFile)	if (!outputFile)
5375	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5376
5377	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5378	}	}

---

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Legend: Removed from v.2246   changed lines   Added in v.3025