Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 2255 by niro, Mon Oct 21 14:00:38 2013 UTC	revision 3138 by niro, Tue Jul 7 11:11:04 2020 UTC
#	Line 48	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 60  int debug = 0; /* Currently just for tem	Line 60  int debug = 0; /* Currently just for tem
60
61	int isEfi = 0;	int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69	char *saved_command_line = NULL;	char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_KERNEL_EFI   = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98	LT_INITRD_EFI   = 1 << 21,	LT_KERNEL_EFI = 1 << 20,
99	LT_UNKNOWN      = 1 << 22,	LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 119  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154	typedef char *(*getEnvFunc)(struct configFileInfo *, char *name);	typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155	typedef int (*setEnvFunc)(struct configFileInfo *, char *name, char *value);	typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	getEnvFunc getEnv;	getEnvFunc getEnv;
162	setEnvFunc setEnv;	setEnvFunc setEnv;
163	struct keywordTypes * keywords;	struct keywordTypes *keywords;
164	int caseInsensitive;	int caseInsensitive;
165	int defaultIsIndex;	int defaultIsIndex;
166	int defaultIsVariable;	int defaultIsVariable;
167	int defaultSupportSaved;	int defaultSupportSaved;
168	int defaultIsSaved;	int defaultIsSaved;
169	enum lineType_e entryStart;	int defaultIsUnquoted;
170	enum lineType_e entryEnd;	enum lineType_e entryStart;
171	int needsBootPrefix;	enum lineType_e entryEnd;
172	int argsInQuotes;	int needsBootPrefix;
173	int maxTitleLength;	int argsInQuotes;
174	int titleBracketed;	int maxTitleLength;
175	int titlePosition;	int titleBracketed;
176	int mbHyperFirst;	int titlePosition;
177	int mbInitRdIsModule;	int mbHyperFirst;
178	int mbConcatArgs;	int mbInitRdIsModule;
179	int mbAllowExtraInitRds;	int mbConcatArgs;
180	char *envFile;	int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/boot/grub/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/menu.lst",	"/boot/grub/grub.conf",
200	"/etc/grub.conf",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "linuxefi",   LT_KERNEL_EFI,  ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "initrdefi",  LT_INITRD_EFI,  ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ "module",     LT_MBMODULE,    ' ' },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	{ "kernel",     LT_HYPER,       ' ' },	{"initrd16", LT_INITRD_16, ' ', ' '},
246	{ NULL, 0, 0 },	{"module", LT_MBMODULE, ' '},
247		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{NULL, 0, 0},
250	};	};
251
252	const char *grub2FindConfig(struct configFileInfo *cfi) {	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static const char *configFiles[] = {	{
254	"/boot/grub/grub-efi.cfg",	static const char *configFiles[] = {
255	"/boot/grub/grub.cfg",	"/boot/grub/grub-efi.cfg",
256	NULL	"/boot/grub/grub.cfg",
257	};	"/etc/grub2-efi.cfg",
258	static int i = -1;	"/etc/grub2.cfg",
259	static const char *grub_cfg = "/boot/grub/grub.cfg";	"/boot/grub2/grub.cfg",
260	int rc = -1;	"/boot/grub2-efi/grub.cfg",
261		NULL
262	if (i == -1) {	};
263	for (i = 0; configFiles[i] != NULL; i++) {	static int i = -1;
264	dbgPrintf("Checking \"%s\": ", configFiles[i]);	static const char *grub_cfg = "/boot/grub/grub.cfg";
265	if ((rc = access(configFiles[i], R_OK))) {	int rc = -1;
266	if (errno == EACCES) {
267	printf("Unable to access bootloader configuration file "	if (i == -1) {
268	"\"%s\": %m\n", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
269	exit(1);	dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282	}	}
	continue;
	} else {
	dbgPrintf("found\n");
	return configFiles[i];
	}
283	}	}
	}
284
285	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286	* that isn't in grub1, and if it exists, return the config file path	* that isn't in grub1, and if it exists, return the config file path
287	* that they use. */	* that they use. */
288	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return grub_cfg;	return grub_cfg;
291	}	}
292
293	dbgPrintf("not found\n");	dbgPrintf("not found\n");
294	return configFiles[i];	return configFiles[i];
295	}	}
296
297	/* kind of hacky.  It'll give the first 1024 bytes, ish. */	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	static char *grub2GetEnv(struct configFileInfo *info, char *name)	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	{	{
300	static char buf[1025];	static char buf[1025];
301	char *s = NULL;	char *s = NULL;
302	char *ret = NULL;	char *ret = NULL;
303	char *envFile = info->envFile ? info->envFile : "/boot/grub2/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304	int rc = asprintf(&s, "grub2-editenv %s list | grep '^%s='", envFile, name);	int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
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	if (rc < 0)	static int sPopCount(const char *s, const char *c)
329	return NULL;	{
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	FILE *f = popen(s, "r");	static char *shellEscape(const char *s)
341	if (!f)	{
342	goto out;	int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	memset(buf, '\0', sizeof (buf));	char *ret = calloc(l + 1, sizeof(*ret));
345	ret = fgets(buf, 1024, f);	if (!ret)
346	pclose(f);	return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348	if (ret) {	if (s[i] == '\'')
349	ret += strlen(name) + 1;	ret[j++] = '\\';
350	ret[strlen(ret) - 1] = '\0';	ret[j] = s[i];
351	}	}
352	dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);	return ret;
353	out:	}
354	free(s);
355	return ret;	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	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	{	{
368	char *s = NULL;	char *s = NULL;
369	int rc = 0;	int rc = 0;
370	char *envFile = info->envFile ? info->envFile : "/boot/grub2/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372	rc = asprintf(&s, "grub2-editenv %s set '%s=%s'", envFile, name, value);	unquote(value);
373	if (rc <0)	value = shellEscape(value);
374	return -1;	if (!value)
375		return -1;
376	dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
377	rc = system(s);	rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378	free(s);	free(value);
379	return rc;	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... */	/* this is a gigantic hack to avoid clobbering grub2 variables... */
389	static int is_special_grub2_variable(const char *name)	static int is_special_grub2_variable(const char *name)
390	{	{
391	if (!strcmp(name,"\"${next_entry}\""))	if (!strcmp(name, "\"${next_entry}\""))
392	return 1;	return 1;
393	if (!strcmp(name,"\"${prev_saved_entry}\""))	if (!strcmp(name, "\"${prev_saved_entry}\""))
394	return 1;	return 1;
395	return 0;	return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int count = 0;	{
400		int count = 0;
401
402	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	static int iskernel(enum lineType_e type) {	static int iskernel(enum lineType_e type)
429	return (type == LT_KERNEL || type == LT_KERNEL_EFI);	{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432	}	}
433
434	static int isinitrd(enum lineType_e type) {	static int isinitrd(enum lineType_e type)
435	return (type == LT_INITRD || type == LT_INITRD_EFI);	{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438	}	}
439
440	char *grub2ExtractTitle(struct singleLine * line) {	char *grub2ExtractTitle(struct singleLine *line)
441	char * current;	{
442	char * current_indent;	char *current;
443	int current_len;	char *current_indent;
444	int current_indent_len;	int current_len;
445	int i;	int current_indent_len;
446		int i;
447	/* bail out if line does not start with menuentry */
448	if (strcmp(line->elements[0].item, "menuentry"))	/* bail out if line does not start with menuentry */
449	return NULL;	if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
	i = 1;
	current = line->elements[i].item;
	current_len = strlen(current);
	/* if second word is quoted, strip the quotes and return single word */
	if (isquote(*current) && isquote(current[current_len - 1])) {
	char *tmp;
	tmp = strdup(current);
	*(tmp + current_len - 1) = '\0';
	return ++tmp;
	}
451
452	/* if no quotes, return second word verbatim */	i = 1;
	if (!isquote(*current))
	return current;
	/* second element start with a quote, so we have to find the element
	* whose last character is also quote (assuming it's the closing one) */
	int resultMaxSize;
	char * result;
	resultMaxSize = sizeOfSingleLine(line);
	result = malloc(resultMaxSize);
	snprintf(result, resultMaxSize, "%s", ++current);
	i++;
	for (; i < line->numElements; ++i) {
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (!isquote(current[current_len-1])) {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.getEnv = grub2GetEnv,	.getEnv = grub2GetEnv,
503	.setEnv = grub2SetEnv,	.setEnv = grub2SetEnv,
504	.keywords = grub2Keywords,	.keywords = grub2Keywords,
505	.defaultIsIndex = 1,	.defaultIsIndex = 1,
506	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
507	.defaultIsVariable = 1,	.defaultIsVariable = 1,
508	.entryStart = LT_MENUENTRY,	.entryStart = LT_MENUENTRY,
509	.entryEnd = LT_ENTRY_END,	.entryEnd = LT_ENTRY_END,
510	.titlePosition = 1,	.titlePosition = 1,
511	.needsBootPrefix = 1,	.needsBootPrefix = 1,
512	.mbHyperFirst = 1,	.mbHyperFirst = 1,
513	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
514	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.caseInsensitive = 1,	.caseInsensitive = 1,
666	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
667	.needsBootPrefix = 1,	.needsBootPrefix = 1,
668	.maxTitleLength = 255,	.maxTitleLength = 255,
669	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	int * index);	int *index);
696	static int readFile(int fd, char ** bufPtr);	static int readFile(int fd, char **bufPtr);
697	static void lineInit(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	struct singleLine * lineDup(struct singleLine * line);	struct singleLine *lineDup(struct singleLine *line);
699	static void lineFree(struct singleLine * line);	static void lineFree(struct singleLine *line);
700	static int lineWrite(FILE * out, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int getNextLine(char **bufPtr, struct singleLine *line,
703	struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static char * getRootSpecifier(char * str);	static size_t getRootSpecifier(const char *str);
705	static void requote(struct singleLine *line, struct configFileInfo * cfi);	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	static void insertElement(struct singleLine * line,	static void insertElement(struct singleLine *line,
707	const char * item, int insertHere,	const char *item, int insertHere,
708	struct configFileInfo * cfi);	struct configFileInfo *cfi);
709	static void removeElement(struct singleLine * line, int removeHere);	static void removeElement(struct singleLine *line, int removeHere);
710	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct configFileInfo * cfi);	struct configFileInfo *cfi);
714	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * line);	struct singleLine *line);
716	static int checkForExtLinux(struct grubConfig * config);	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	struct singleLine * tmplLine,	struct singleLine *tmplLine,
719	struct singleLine * prevLine,	struct singleLine *prevLine,
720	const char * val,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi);	struct singleLine *addLine(struct singleEntry *entry,
722	struct singleLine *  addLine(struct singleEntry * entry,	struct configFileInfo *cfi,
723	struct configFileInfo * cfi,	enum lineType_e type, char *defaultIndent,
724	enum lineType_e type, char * defaultIndent,	const char *val);
	const char * val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757		return buf;
758		}
759
760	return buf;	static inline int
761		kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762		{
763		int kwl = strlen(kw->key);
764		int ll = strlen(label);
765		int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783		}
784		return 0;
785	}	}
786
787	static enum lineType_e preferredLineType(enum lineType_e type,	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct configFileInfo *cfi) {	struct configFileInfo *cfi)
789	if (isEfi && cfi == &grub2ConfigType) {	{
790	switch (type) {	if (isEfi && cfi == &grub2ConfigType) {
791	case LT_KERNEL:	switch (type) {
792	return LT_KERNEL_EFI;	case LT_KERNEL:
793	case LT_INITRD:	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	return LT_INITRD_EFI;	case LT_INITRD:
795	default:	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	return type;	default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810	}	}
811	}	return type;
	return type;
812	}	}
813
814	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
816	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
817	if (kw->type == type)	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	return kw;	if (kw->type == type)
819	}	return kw;
820	return NULL;	}
821		return NULL;
822	}	}
823
824	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct keywordTypes *kt = getKeywordByType(type, cfi);	{
826	if (kt)	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	return kt->key;	if (kt)
828	return "unknown";	return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getpathbyspec(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_devname(blkid, device, NULL);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static char * getuuidbydev(char *device) {	static char *getuuidbydev(char *device)
841	if (!blkid)	{
842	blkid_get_cache(&blkid, NULL);	if (!blkid)
843		blkid_get_cache(&blkid, NULL);
844
845	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
851	if (cfi->caseInsensitive) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcasecmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
	} else {
	if (!strcmp(keyword, kw->key))
	return kw->type;
854	}	}
855	}	return LT_UNKNOWN;
	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title = NULL;	/* bracketed title... let's extract it */
897	if (line->type == LT_TITLE) {	char *title = NULL;
898	title = strdup(line->elements[0].item);	if (line->type == LT_TITLE) {
899	title++;	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	*(title + strlen(title) - 1) = '\0';	if (cfg->cfi->titleBracketed) {
901	} else if (line->type == LT_MENUENTRY)	tmp++;
902	title = strdup(line->elements[1].item);	title = strdup(tmp);
903	else	*(title + strlen(title) - 1) = '\0';
904	return NULL;	} else {
905	return title;	title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912	}	}
913
914	static int readFile(int fd, char ** bufPtr) {	static int readFile(int fd, char **bufPtr)
915	int alloced = 0, size = 0, i = 0;	{
916	char * buf = NULL;	int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919	do {	do {
920	size += i;	size += i;
921	if ((size + 1024) > alloced) {	if ((size + 1024) > alloced) {
922	alloced += 4096;	alloced += 4096;
923	buf = realloc(buf, alloced + 1);	buf = realloc(buf, alloced + 1);
924	}	}
925	} while ((i = read(fd, buf + size, 1024)) > 0);	} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	if (i < 0) {	if (i < 0) {
928	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));	fprintf(stderr, _("error reading input: %s\n"),
929	free(buf);	strerror(errno));
930	return 1;	free(buf);
931	}	return 1;
932		}
933
934	buf = realloc(buf, size + 2);	buf = realloc(buf, size + 2);
935	if (size == 0)	if (size == 0)
936	buf[size++] = '\n';	buf[size++] = '\n';
937	else	else if (buf[size - 1] != '\n')
938	if (buf[size - 1] != '\n')	buf[size++] = '\n';
939	buf[size++] = '\n';	buf[size] = '\0';
	buf[size] = '\0';
940
941	*bufPtr = buf;	*bufPtr = buf;
942
943	return 0;	return 0;
944	}	}
945
946	static void lineInit(struct singleLine * line) {	static void lineInit(struct singleLine *line)
947	line->indent = NULL;	{
948	line->elements = NULL;	line->type = LT_UNIDENTIFIED;
949	line->numElements = 0;	line->indent = NULL;
950	line->next = NULL;	line->elements = NULL;
951	}	line->numElements = 0;
952		line->next = NULL;
	struct singleLine * lineDup(struct singleLine * line) {
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
	return newLine;
953	}	}
954
955	static void lineFree(struct singleLine * line) {	struct singleLine *lineDup(struct singleLine *line)
956	if (line->indent) free(line->indent);	{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	free(line->elements[i].item);	newLine->next = NULL;
961	free(line->elements[i].indent);	newLine->type = line->type;
962	}	newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (line->elements) free(line->elements);	for (int i = 0; i < newLine->numElements; i++) {
967	lineInit(line);	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	}	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	static int lineWrite(FILE * out, struct singleLine * line,	return newLine;
972	struct configFileInfo * cfi) {	}
	if (fprintf(out, "%s", line->indent) == -1) return -1;
973
974	for (int i = 0; i < line->numElements; i++) {	static void lineFree(struct singleLine *line)
975	/* Need to handle this, because we strip the quotes from	{
976	* menuentry when read it. */	if (line->indent)
977	if (line->type == LT_MENUENTRY && i == 1) {	free(line->indent);
	if(!isquote(*line->elements[i].item))
	fprintf(out, "\'%s\'", line->elements[i].item);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
978
979	continue;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982	}	}
983
984	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	if (line->elements)
985	if (fputc('"', out) == EOF) return -1;	free(line->elements);
986		lineInit(line);
987		}
988
989	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	static int lineWrite(FILE * out, struct singleLine *line,
990	if (i < line->numElements - 1)	struct configFileInfo *cfi)
991	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	{
992	}	if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995		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	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	continue;
1023	if (fputc('"', out) == EOF) return -1;	}
1024
1025	if (fprintf(out, "\n") == -1) return -1;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	return 0;	if (fprintf(out, "\n") == -1)
1041		return -1;
1042
1043		return 0;
1044	}	}
1045
1046	/* we've guaranteed that the buffer ends w/ \n\0 */	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
1049	char * end;	{
1050	char * start = *bufPtr;	char *end;
1051	char * chptr;	char *start = *bufPtr;
1052	int elementsAlloced = 0;	char *chptr;
1053	struct lineElement * element;	int elementsAlloced = 0;
1054	int first = 1;	struct lineElement *element;
1055		int first = 1;
1056
1057	lineFree(line);	lineFree(line);
1058
1059	end = strchr(start, '\n');	end = strchr(start, '\n');
1060	*end = '\0';	*end = '\0';
1061	*bufPtr = end + 1;	*bufPtr = end + 1;
1062
1063	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
1064
1065	line->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	while (start < end) {	while (start < end) {
1069	/* we know !isspace(*start) */	/* we know !isspace(*start) */
1070
1071	if (elementsAlloced == line->numElements) {	if (elementsAlloced == line->numElements) {
1072	elementsAlloced += 5;	elementsAlloced += 5;
1073	line->elements = realloc(line->elements,	line->elements = realloc(line->elements,
1074	sizeof(*line->elements) * elementsAlloced);	sizeof(*line->elements) *
1075	}	elementsAlloced);
1076		}
1077
1078	element = line->elements + line->numElements;	element = line->elements + line->numElements;
1079
1080	chptr = start;	chptr = start;
1081	while (*chptr && !isspace(*chptr)) {	while (*chptr && !isspace(*chptr)) {
1082	if (first && *chptr == '=') break;	if (first && *chptr == '=')
1083	chptr++;	break;
1084	}	chptr++;
1085	element->item = strndup(start, chptr - start);	}
1086	start = chptr;	if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098	/* lilo actually accepts the pathological case of append = " foo " */	do {
1099	if (*start == '=')	for (; *chptr && isspace(*chptr); chptr++) ;
1100	chptr = start + 1;	if (*chptr == '=')
1101	else	chptr = chptr + 1;
1102	chptr = start;	} while (isspace(*chptr));
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1103
1104	element->indent = strndup(start, chptr - start);	element->indent = strndup(start, chptr - start);
1105	start = chptr;	start = chptr;
1106
1107	line->numElements++;	line->numElements++;
1108	first = 0;	first = 0;
1109	}	}
1110
1111	if (!line->numElements)	if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	else {	else {
1114	line->type = getTypeByKeyword(line->elements[0].item, cfi);	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	if (line->type == LT_UNKNOWN) {	if (line->type == LT_UNKNOWN) {
1116	/* zipl does [title] instead of something reasonable like all	/* zipl does [title] instead of something reasonable
1117	* the other boot loaders.  kind of ugly */	* like all the other boot loaders.  kind of ugly */
1118	if (cfi->titleBracketed && isBracketedTitle(line)) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	line->type = LT_TITLE;	line->type = LT_TITLE;
1120	}	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1121
1122	fullLine = malloc(len + 1);	/* this is awkward, but we need to be able to handle
1123	strcpy(fullLine, line->indent);	* keywords that begin with a # (specifically for
1124	free(line->indent);	* #boot in grub.conf), but still make comments lines
1125	line->indent = fullLine;	* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	for (int i = 0; i < line->numElements; i++) {	line->type = LT_WHITESPACE;
1151	strcat(fullLine, line->elements[i].item);	line->numElements = 0;
1152	strcat(fullLine, line->elements[i].indent);	}
1153	free(line->elements[i].item);	} else if (line->type == LT_INITRD) {
1154	free(line->elements[i].indent);	struct keywordTypes *kw;
	}
1155
1156	line->type = LT_WHITESPACE;	kw = getKeywordByType(line->type, cfi);
	line->numElements = 0;
	}
	} else {
	struct keywordTypes *kw;
1157
1158	kw = getKeywordByType(line->type, cfi);	/* space isn't the only separator, we need to split
1159		* elements up more
1160		*/
1161		if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	/* space isn't the only separator, we need to split	for (int j = line->numElements; j > i;
1187	* elements up more	j--) {
1188	*/	line->elements[j +
1189	if (!isspace(kw->separatorChar)) {	numNewElements] =
1190	char indent[2] = "";	line->elements[j];
1191	indent[0] = kw->separatorChar;	}
1192	for (int i = 1; i < line->numElements; i++) {	line->numElements += numNewElements;
	char *p;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (int j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
	}
	line->numElements += numNewElements;
1193
1194	p = line->elements[i].item;	p = line->elements[i].item;
1195	while (*p != '\0') {	while (*p != '\0') {
1196
1197	while (*p != kw->separatorChar && *p != '\0') p++;	while (*p != kw->separatorChar
1198	if (*p == '\0') {	&& *p != '\0')
1199	break;	p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213	}	}
	line->elements[i + 1].indent = line->elements[i].indent;
	line->elements[i].indent = strdup(indent);
	*p++ = '\0';
	i++;
	line->elements[i].item = strdup(p);
1214	}	}
1215	}	} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int len;
	char * buf;
	if (inName == NULL) {
	printf("Could not find bootloader configuration\n");
	exit(1);
	} else if (!strcmp(inName, "-")) {
	in = 0;
	} else {
	if ((in = open(inName, O_RDONLY)) < 0) {
	fprintf(stderr, _("error opening %s for read: %s\n"),
	inName, strerror(errno));
	return NULL;
	}
	}
	rc = readFile(in, &incoming);
	close(in);
	if (rc) return NULL;
	head = incoming;
	cfg = malloc(sizeof(*cfg));
	cfg->primaryIndent = strdup("");
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1262
1263	if (getNextLine(&head, line, cfi)) {	static struct grubConfig *readConfig(const char *inName,
1264	free(line);	struct configFileInfo *cfi)
1265	/* XXX memory leak of everything in cfg */	{
1266	return NULL;	int in;
1267	}	char *incoming = NULL, *head;
1268		int rc;
1269	if (!sawEntry && line->numElements) {	int sawEntry = 0;
1270	free(cfg->primaryIndent);	int movedLine = 0;
1271	cfg->primaryIndent = strdup(line->indent);	struct grubConfig *cfg;
1272	} else if (line->numElements) {	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	free(cfg->secondaryIndent);	char *end;
1274	cfg->secondaryIndent = strdup(line->indent);	struct singleEntry *entry = NULL;
1275	}	int len;
1276		char *buf;
1277	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1278	sawEntry = 1;	if (inName == NULL) {
1279	if (!entry) {	printf("Could not find bootloader configuration\n");
1280	cfg->entries = malloc(sizeof(*entry));	exit(1);
1281	entry = cfg->entries;	} else if (!strcmp(inName, "-")) {
1282	} else {	in = 0;
1283	entry->next = malloc(sizeof(*entry));	} else {
1284	entry = entry->next;	if ((in = open(inName, O_RDONLY)) < 0) {
1285	}	fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289		}
1290
1291	entry->skip = 0;	rc = readFile(in, &incoming);
1292	entry->multiboot = 0;	close(in);
1293	entry->lines = NULL;	if (rc)
1294	entry->next = NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1298	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->primaryIndent = strdup("");
1299	dbgPrintf("%s", line->indent);	cfg->secondaryIndent = strdup("\t");
1300	for (int i = 0; i < line->numElements; i++)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	cfg->cfi = cfi;
1302	dbgPrintf("\n");	cfg->theLines = NULL;
1303	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->entries = NULL;
1304	if (kwType && line->numElements == 3 &&	cfg->fallbackImage = 0;
1305	!strcmp(line->elements[1].item, kwType->key) &&	cfg->isModified = 0;
1306	!is_special_grub2_variable(line->elements[2].item)) {
1307	dbgPrintf("Line sets default config\n");	/* copy everything we have */
1308	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	while (*head) {
1309	defaultLine = line;	line = malloc(sizeof(*line));
1310	}	lineInit(line);
1311	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
1312	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	if (getNextLine(&head, line, cfi)) {
1313	defaultLine = line;	free(line);
1314		/* XXX memory leak of everything in cfg */
1315	} else if (iskernel(line->type)) {	return NULL;
1316	/* if by some freak chance this is multiboot and the "module"	}
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	for (struct singleLine *l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (iskernel(l->type)) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1317
1318	for (int i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1320	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1328	free(line->elements[i].indent);	if (!entry) {
1329	}	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1333	line->elements[line->numElements - 1].indent;	entry = entry->next;
1334	line->elements[1].item = buf;	}
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
	/* allocate mem for extra flags. */
	extras = malloc(len + 1);
	*extras = '\0';
	/* get title. */
	for (int i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (isquote(*line->elements[i].item))
	title = line->elements[i].item + 1;
	else
	title = line->elements[i].item;
1335
1336	len = strlen(title);	entry->skip = 0;
1337	if (isquote(title[len-1])) {	entry->multiboot = 0;
1338	strncat(buf, title,len-1);	entry->lines = NULL;
1339	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1340	}	}
	}
	/* get extras */
	int count = 0;
	for (int i = 0; i < line->numElements; i++) {
	if (count >= 2) {
	strcat(extras, line->elements[i].item);
	strcat(extras, line->elements[i].indent);
	}
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	/* count ' or ", there should be two in menuentry line. */
	if (isquote(*line->elements[i].item))
	count++;
	len = strlen(line->elements[i].item);
	if (isquote(line->elements[i].item[len -1]))
	count++;
	/* ok, we get the final ' or ", others are extras. */
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(line->elements[last].item[len]))
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1341
1342	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1343	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1344	entry->lines = line;	line->numElements);
1345	else	dbgPrintf("%s", line->indent);
1346	last->next = line;	for (int i = 0; i < line->numElements; i++)
1347	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1350	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1351	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1352	sawEntry = 0;	if (kwType && line->numElements == 3
1353	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (!cfg->theLines)	&& !is_special_grub2_variable(
1355	cfg->theLines = line;	line->elements[2].item)) {
1356	else	dbgPrintf("Line sets default config\n");
1357	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368	last = line;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	free(incoming);	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	if (defaultLine) {	cfg->fallbackImage =
1391	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1392	cfi->defaultSupportSaved &&	if (*end)
1393	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1394	cfg->cfi->defaultIsSaved = 1;
1395	cfg->defaultImage = DEFAULT_SAVED_GRUB2;	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	if (cfg->cfi->getEnv) {	|| (line->type == LT_TITLE
1397	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	&& line->numElements > 1)) {
1398	if (defTitle) {	/* make the title/default a single argument (undoing
1399	int index = 0;	* our parsing) */
1400	entry = findEntryByTitle(cfg, defTitle, &index);	len = 0;
1401	if (entry)	for (int i = 1; i < line->numElements; i++) {
1402	cfg->defaultImage = index;	len += strlen(line->elements[i].item);
1403	}	len += strlen(line->elements[i].indent);
1404	}	}
1405	} else if (cfi->defaultIsVariable) {	buf = malloc(len + 1);
1406	char *value = defaultLine->elements[2].item;	*buf = '\0';
	while (*value && (*value == '"' || *value == '\'' ||
	*value == ' ' || *value == '\t'))
	value++;
	cfg->defaultImage = strtol(value, &end, 10);
	while (*end && (*end == '"' || *end == '\'' ||
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	int i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1407
1408	if (entry){	for (int i = 1; i < line->numElements; i++) {
1409	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1410	}else{	free(line->elements[i].item);
1411	cfg->defaultImage = -1;
1412	}	if ((i + 1) != line->numElements) {
1413	}	strcat(buf, line->elements[i].indent);
1414	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {	free(line->elements[i].indent);
1415	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	}
1416	if (defTitle) {	}
	int index = 0;
	entry = findEntryByTitle(cfg, defTitle, &index);
	if (entry)
	cfg->defaultImage = index;
	}
	} else {
	cfg->defaultImage = 0;
	}
1417
1418	return cfg;	line->elements[1].indent =
1419	}	line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1438	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1439	struct singleEntry * entry;	*extras = '\0';
1440	struct singleLine * line;
1441	int i;	/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1446	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1447	else if (cfg->cfi->defaultIsSaved) {	&& quote_char == '\0') {
1448	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1449	if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {	quote_char = *line->elements[i].item;
1450	char *title;	title = line->elements[i].item + 1;
1451	entry = findEntryByIndex(cfg, cfg->defaultImage);	} else {
1452	line = getLineByType(LT_MENUENTRY, entry->lines);	title = line->elements[i].item;
1453	if (!line)	}
	line = getLineByType(LT_TITLE, entry->lines);
	if (line) {
	title = extractTitle(line);
	if (title)
	cfg->cfi->setEnv(cfg->cfi, "saved_entry", title);
	}
	}
	} else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1454
1455	entry = cfg->entries;	len = strlen(title);
1456	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	i = 0;	/* get extras */
1466	while (entry && i < image) {	int count = 0;
1467	entry = entry->next;	quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1476	i++;	(line->elements[i].item, "menuentry"))
1477	}	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	if (!entry) return;	len = strlen(line->elements[i].item);
1488
1489	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1494	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1495	line->elements[1].item);	line->elements[1].indent =
1496	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1497	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1498	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1499	extractTitle(line));	line->elements[line->numElements - 2].indent;
1500	}	line->elements[2].item = extras;
1501	}	line->numElements = 3;
1502	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503	}	/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1511	const char * prefix) {	memmove(line->elements[1].item,
1512	FILE * out;	line->elements[1].item + 1,
1513	struct singleLine * line;	strlen(line->elements[1].item +
1514	struct singleEntry * entry;	1) + 1);
1515	char * tmpOutName;
1516	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1517	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1518	int i;	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520	if (!strcmp(outName, "-")) {	}
1521	out = stdout;	}
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	char *dir = strdupa(outName);
	rc = chdir(dirname(dir));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key) &&
	!is_special_grub2_variable(line->elements[2].item)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
	return 0;
	}
1581
1582	static int numEntries(struct grubConfig *cfg) {	free(incoming);
	int i = 0;
	struct singleEntry * entry;
	entry = cfg->entries;
	while (entry) {
	if (!entry->skip)
	i++;
	entry = entry->next;
	}
	return i;
	}
1583
1584	static char *findDiskForRoot()	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701	{	{
1702	int fd;	struct singleEntry *entry;
1703	char buf[65536];	struct singleLine *line;
1704	char *devname;	int i;
1705	char *chptr;
1706	int rc;	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	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	entry = cfg->entries;
1752	fprintf(stderr, "grubby: failed to open %s: %s\n",	while (entry && entry->skip)
1753	_PATH_MOUNTED, strerror(errno));	entry = entry->next;
1754	return NULL;
1755	}	i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759	rc = read(fd, buf, sizeof(buf) - 1);	while (entry && entry->skip)
1760	if (rc <= 0) {	entry = entry->next;
1761	fprintf(stderr, "grubby: failed to read %s: %s\n",	i++;
1762	_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++;
	}
1763
1764	/* Return the last / entry found */	if (!entry)
1765	if (foundanswer) {	return;
1766	chptr = strchr(foundanswer, ' ');
1767	*chptr = '\0';	line = getLineByType(LT_TITLE, entry->lines);
	return strdup(foundanswer);
	}
1768
1769	return NULL;	if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783	}	}
1784
1785	void printEntry(struct singleEntry * entry, FILE *f) {	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	int i;	const char *prefix)
1787	struct singleLine * line;	{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800		} else {
1801		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803		int len = 256;
1804		int rc;
1805
1806		/* most likely the symlink is relative, so change our
1807		directory to the dir of the symlink */
1808		char *dir = strdupa(outName);
1809		rc = chdir(dirname(dir));
1810		do {
1811		buf = alloca(len + 1);
1812		rc = readlink(basename(outName), buf, len);
1813		if (rc == len)
1814		len += 256;
1815		} while (rc == len);
1816
1817		if (rc < 0) {
1818		fprintf(stderr,
1819		_
1820		("grubby: error readlink link %s: %s\n"),
1821		outName, strerror(errno));
1822		return 1;
1823		}
1824
1825		outName = buf;
1826		outName[rc] = '\0';
1827		}
1828
1829	for (line = entry->lines; line; line = line->next) {	tmpOutName = alloca(strlen(outName) + 2);
1830	log_message(f, "DBG: %s", line->indent);	sprintf(tmpOutName, "%s-", outName);
1831	for (i = 0; i < line->numElements; i++) {	out = fopen(tmpOutName, "w");
1832	/* Need to handle this, because we strip the quotes from	if (!out) {
1833	* menuentry when read it. */	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834	if (line->type == LT_MENUENTRY && i == 1) {	tmpOutName, strerror(errno));
1835	if(!isquote(*line->elements[i].item))	return 1;
1836	log_message(f, "\'%s\'", line->elements[i].item);	}
1837	else
1838	log_message(f, "%s", line->elements[i].item);	if (!stat(outName, &sb)) {
1839	log_message(f, "%s", line->elements[i].indent);	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840		fprintf(stderr,
1841	continue;	_
1842	}	("grubby: error setting perms on %s: %s\n"),
1843		tmpOutName, strerror(errno));
1844	log_message(f, "%s%s",	fclose(out);
1845	line->elements[i].item, line->elements[i].indent);	unlink(tmpOutName);
1846		return 1;
1847		}
1848		}
1849	}	}
1850	log_message(f, "\n");
1851	}	line = cfg->theLines;
1852		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1853		while (line) {
1854		if (line->type == LT_SET_VARIABLE && defaultKw &&
1855		line->numElements == 3 &&
1856		!strcmp(line->elements[1].item, defaultKw->key) &&
1857		!is_special_grub2_variable(line->elements[2].item)) {
1858		writeDefault(out, line->indent,
1859		line->elements[0].indent, cfg);
1860		needs &= ~MAIN_DEFAULT;
1861		} else if (line->type == LT_DEFAULT) {
1862		writeDefault(out, line->indent,
1863		line->elements[0].indent, cfg);
1864		needs &= ~MAIN_DEFAULT;
1865		} else if (line->type == LT_FALLBACK) {
1866		if (cfg->fallbackImage > -1)
1867		fprintf(out, "%s%s%s%d\n", line->indent,
1868		line->elements[0].item,
1869		line->elements[0].indent,
1870		cfg->fallbackImage);
1871		} else {
1872		if (lineWrite(out, line, cfg->cfi) == -1) {
1873		fprintf(stderr,
1874		_("grubby: error writing %s: %s\n"),
1875		tmpOutName, strerror(errno));
1876		fclose(out);
1877		unlink(tmpOutName);
1878		return 1;
1879		}
1880		}
1881
1882		line = line->next;
1883		}
1884
1885		if (needs & MAIN_DEFAULT) {
1886		writeDefault(out, cfg->primaryIndent, "=", cfg);
1887		needs &= ~MAIN_DEFAULT;
1888		}
1889
1890		i = 0;
1891		while ((entry = findEntryByIndex(cfg, i++))) {
1892		if (entry->skip)
1893		continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907		}
1908
1909		if (tmpOutName) {
1910		/* write userspace buffers */
1911		if (fflush(out))
1912		rc = 1;
1913
1914		/* purge the write-back cache with fsync() */
1915		if (fsync(fileno(out)))
1916		rc = 1;
1917
1918		if (fclose(out))
1919		rc = 1;
1920
1921		if (rc == 0 && rename(tmpOutName, outName)) {
1922		unlink(tmpOutName);
1923		rc = 1;
1924		}
1925
1926		/* fsync() the destination directory after rename */
1927		if (rc == 0) {
1928		int dirfd;
1929
1930		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1931		if (dirfd < 0)
1932		rc = 1;
1933		else if (fsync(dirfd))
1934		rc = 1;
1935
1936		if (dirfd >= 0)
1937		close(dirfd);
1938		}
1939
1940		if (rc == 1)
1941		fprintf(stderr,
1942		_("grubby: error flushing data: %m\n"));
1943		}
1944
1945		return rc;
1946	}	}
1947
1948	void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...)	static int numEntries(struct grubConfig *cfg)
1949	{	{
1950	static int once;	int i = 0;
1951	va_list argp, argq;	struct singleEntry *entry;
1952
1953	va_start(argp, fmt);	entry = cfg->entries;
1954		while (entry) {
1955		if (!entry->skip)
1956		i++;
1957		entry = entry->next;
1958		}
1959		return i;
1960		}
1961
1962	va_copy(argq, argp);	static char *findDiskForRoot()
1963	if (!once) {	{
1964	log_time(NULL);	int fd;
1965	log_message(NULL, "command line: %s\n", saved_command_line);	char buf[65536];
1966	}	char *devname;
1967	log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed");	char *chptr;
1968	log_vmessage(NULL, fmt, argq);	int rc;
1969
1970	printEntry(entry, NULL);	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971	va_end(argq);	fprintf(stderr, "grubby: failed to open %s: %s\n",
1972		_PATH_MOUNTED, strerror(errno));
1973		return NULL;
1974		}
1975
1976		rc = read(fd, buf, sizeof(buf) - 1);
1977		if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979		_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981		return NULL;
1982		}
1983		close(fd);
1984		buf[rc] = '\0';
1985		chptr = buf;
1986
1987	if (!debug) {	char *foundanswer = NULL;
	once = 1;
	va_end(argp);
	return;
	}
1988
1989	if (okay) {	while (chptr && chptr != buf + rc) {
1990	va_end(argp);	devname = chptr;
1991	return;
1992	}	/*
1993		* The first column of a mtab entry is the device, but if the
1994		* entry is a special device it won't start with /, so move
1995		* on to the next line.
1996		*/
1997		if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004		/* Seek to the next space */
2005		chptr = strchr(chptr, ' ');
2006		if (!chptr) {
2007		fprintf(stderr, "grubby: error parsing %s: %s\n",
2008		_PATH_MOUNTED, strerror(errno));
2009		return NULL;
2010		}
2011
2012		/*
2013		* The second column of a mtab entry is the mount point, we
2014		* are looking for '/' obviously.
2015		*/
2016		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2017		/* remember the last / entry in mtab */
2018		foundanswer = devname;
2019		}
2020
2021		/* Next line */
2022		chptr = strchr(chptr, '\n');
2023		if (chptr)
2024		chptr++;
2025		}
2026
2027		/* Return the last / entry found */
2028		if (foundanswer) {
2029		chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032		}
2033
2034		return NULL;
2035		}
2036
2037		void printEntry(struct singleEntry *entry, FILE * f)
2038		{
2039		int i;
2040		struct singleLine *line;
2041
2042		for (line = entry->lines; line; line = line->next) {
2043		log_message(f, "DBG: %s", line->indent);
2044		for (i = 0; i < line->numElements; i++) {
2045		/* Need to handle this, because we strip the quotes from
2046		* menuentry when read it. */
2047		if (line->type == LT_MENUENTRY && i == 1) {
2048		if (!isquote(*line->elements[i].item))
2049		log_message(f, "\'%s\'",
2050		line->elements[i].item);
2051		else
2052		log_message(f, "%s",
2053		line->elements[i].item);
2054		log_message(f, "%s", line->elements[i].indent);
2055
2056		continue;
2057		}
2058
2059		log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064		}
2065		}
2066
2067		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069		{
2070		static int once;
2071		va_list argp, argq;
2072
2073		va_start(argp, fmt);
2074
2075	if (!once)	va_copy(argq, argp);
2076	log_message(stderr, "DBG: command line: %s\n", saved_command_line);	if (!once) {
2077	once = 1;	log_time(NULL);
2078	fprintf(stderr, "DBG: Image entry failed: ");	log_message(NULL, "command line: %s\n", saved_command_line);
2079	vfprintf(stderr, fmt, argp);	}
2080	printEntry(entry, stderr);	log_message(NULL, "DBG: Image entry %s: ",
2081	va_end(argp);	okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
2083
2084		printEntry(entry, NULL);
2085		va_end(argq);
2086
2087		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093		if (okay) {
2094		va_end(argp);
2095		return;
2096		}
2097
2098		if (!once)
2099		log_message(stderr, "DBG: command line: %s\n",
2100		saved_command_line);
2101		once = 1;
2102		fprintf(stderr, "DBG: Image entry failed: ");
2103		vfprintf(stderr, fmt, argp);
2104		printEntry(entry, stderr);
2105		va_end(argp);
2106	}	}
2107
2108	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1729  static int endswith(const char *s, char	Line 2118  static int endswith(const char *s, char
2118	return s[slen] == c;	return s[slen] == c;
2119	}	}
2120
2121	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	int skipRemoved, int flags) {	int skipRemoved, int flags)
2123	struct singleLine * line;	{
2124	char * fullName;	struct singleLine *line;
2125	int i;	char *fullName;
2126	char * dev;	int i;
2127	char * rootspec;	char *dev;
2128	char * rootdev;	size_t rs;
2129		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, 0, "marked to skip\n");
	return 0;
	}
2130
2131	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	if (skipRemoved && entry->skip) {
2132	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2133	notSuitablePrintf(entry, 0, "no line found\n");	return 0;
2134	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, 0, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2135
2136	if (flags & GRUBBY_BADIMAGE_OKAY) {	line =
2137	notSuitablePrintf(entry, 1, "\n");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138	return 1;	entry->lines);
2139	}	if (!line) {
2140		notSuitablePrintf(entry, 0, "no line found\n");
2141		return 0;
2142		}
2143		if (line->numElements < 2) {
2144		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145		line->numElements);
2146		return 0;
2147		}
2148
2149	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2150	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2151	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2152	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2153
2154	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2155	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2156		rs = getRootSpecifier(line->elements[1].item);
2157		int hasslash = endswith(bootPrefix, '/') ||
2158		beginswith(line->elements[1].item + rs, '/');
2159		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2160		line->elements[1].item + rs);
2161		if (access(fullName, R_OK)) {
2162		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2163		return 0;
2164		}
2165		for (i = 2; i < line->numElements; i++)
2166		if (!strncasecmp(line->elements[i].item, "root=", 5))
2167		break;
2168		if (i < line->numElements) {
2169		dev = line->elements[i].item + 5;
2170	} else {	} else {
2171	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2172	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
	*/
	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);
2173
2174	/* failed to find one */	if (line && line->numElements >= 2) {
2175	if (!line) {	dev = line->elements[1].item;
2176	notSuitablePrintf(entry, 0, "no line found\n");	} else {
2177	return 0;	/* didn't succeed in finding a LT_ROOT, let's try
2178	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2179		* for the args, so check that too.
2180		*/
2181		line =
2182		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2183		entry->lines);
2184
2185		/* failed to find one */
2186		if (!line) {
2187		notSuitablePrintf(entry, 0, "no line found\n");
2188		return 0;
2189		}
2190
2191	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2192	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2193	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2194	dev = line->elements[i].item + 5;	break;
2195	else {	if (i < line->numElements)
2196	notSuitablePrintf(entry, 0, "no root= entry found\n");	dev = line->elements[i].item + 5;
2197	/* it failed too...  can't find root= */	else {
2198	return 0;	notSuitablePrintf(entry, 0,
2199	}	"no root= entry found\n");
2200		/* it failed too...  can't find root= */
2201		return 0;
2202		}
2203		}
2204	}	}
	}
2205
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2206	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2207		if (!getpathbyspec(dev)) {
2208		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2209		dev);
2210		return 0;
2211		} else
2212		dev = getpathbyspec(dev);
2213
2214	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2215	if (!rootdev) {	if (!rootdev) {
2216	notSuitablePrintf(entry, 0, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2217	return 0;	return 0;
2218	}	}
2219
2220	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2221	notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2222	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2223	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2224	return 0;	free(rootdev);
2225	}	return 0;
2226		}
2227
2228	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2229	notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2230	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2231	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2232	return 0;	free(rootdev);
2233	}	return 0;
2234		}
2235
2236	free(rootdev);	free(rootdev);
2237	notSuitablePrintf(entry, 1, "\n");	notSuitablePrintf(entry, 1, "\n");
2238
2239	return 1;	return 1;
2240	}	}
2241
2242	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2243	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2244	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2245	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2246	int * index) {	int *index)
2247	struct singleEntry * entry = NULL;	{
2248	struct singleLine * line;	struct singleEntry *entry = NULL;
2249	int i;	struct singleLine *line;
2250	char * chptr;	int i;
2251	char * rootspec = NULL;	char *chptr;
2252	enum lineType_e checkType = LT_KERNEL;	enum lineType_e checkType = LT_KERNEL;
2253
2254		if (isdigit(*kernel)) {
2255		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2256
2257		i = 0;
2258		indexVars[i] = strtol(kernel, &chptr, 10);
2259		while (*chptr == ',') {
2260		i++;
2261		kernel = chptr + 1;
2262		indexVars[i] = strtol(kernel, &chptr, 10);
2263		}
2264
2265	if (isdigit(*kernel)) {	if (*chptr) {
2266	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	/* can't parse it, bail */
2267		return NULL;
2268		}
2269
2270	i = 0;	indexVars[i + 1] = -1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2271
2272	if (*chptr) {	i = 0;
2273	/* can't parse it, bail */	if (index) {
2274	return NULL;	while (i < *index) {
2275	}	i++;
2276		if (indexVars[i] == -1)
2277		return NULL;
2278		}
2279		}
2280
2281	indexVars[i + 1] = -1;	entry = findEntryByIndex(config, indexVars[i]);
2282		if (!entry)
2283	i = 0;	return NULL;
2284	if (index) {
2285	while (i < *index) i++;	line =
2286	if (indexVars[i] == -1) return NULL;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2287		LT_KERNEL_16, entry->lines);
2288		if (!line)
2289		return NULL;
2290
2291		if (index)
2292		*index = indexVars[i];
2293		return entry;
2294	}	}
2295
2296	entry = findEntryByIndex(config, indexVars[i]);	if (!strcmp(kernel, "DEFAULT")) {
2297	if (!entry) return NULL;	if (index && *index > config->defaultImage) {
2298		entry = NULL;
2299		} else {
2300		entry = findEntryByIndex(config, config->defaultImage);
2301		if (entry && entry->skip)
2302		entry = NULL;
2303		else if (index)
2304		*index = config->defaultImage;
2305		}
2306		} else if (!strcmp(kernel, "ALL")) {
2307		if (index)
2308		i = *index;
2309		else
2310		i = 0;
2311
2312	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2313	if (!line) return NULL;	if (!entry->skip)
2314		break;
2315		i++;
2316		}
2317
2318	if (index) *index = indexVars[i];	if (entry && index)
2319	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2320	} else {	} else {
2321	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2322	if (entry && entry->skip)	i = *index;
2323	entry = NULL;	else
2324	else if (index)	i = 0;
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
	while ((entry = findEntryByIndex(config, i))) {
	if (!entry->skip) break;
	i++;
	}
2325
2326	if (entry && index)	if (!strncmp(kernel, "TITLE=", 6)) {
2327	*index = i;	prefix = "";
2328	} else {	checkType = LT_TITLE | LT_MENUENTRY;
2329	if (index)	kernel += 6;
2330	i = *index;	}
	else
	i = 0;
2331
2332	if (!strncmp(kernel, "TITLE=", 6)) {	for (entry = findEntryByIndex(config, i); entry;
2333	prefix = "";	entry = entry->next, i++) {
2334	checkType = LT_TITLE|LT_MENUENTRY;	if (entry->skip)
2335	kernel += 6;	continue;
2336	}
2337		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2338	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	checkType, kernel, entry);
2339	if (entry->skip) continue;
2340		/* check all the lines matching checkType */
2341	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	for (line = entry->lines; line; line = line->next) {
2342		enum lineType_e ct = checkType;
2343	/* check all the lines matching checkType */	if (entry->multiboot && checkType == LT_KERNEL)
2344	for (line = entry->lines; line; line = line->next) {	ct = LT_KERNEL | LT_KERNEL_EFI |
2345	enum lineType_e ct = checkType;	LT_MBMODULE | LT_HYPER |
2346	if (entry->multiboot && checkType == LT_KERNEL)	LT_KERNEL_16;
2347	ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER;	else if (checkType & LT_KERNEL)
2348	else if (checkType & LT_KERNEL)	ct = checkType | LT_KERNEL_EFI |
2349	ct = checkType | LT_KERNEL_EFI;	LT_KERNEL_16;
2350	line = getLineByType(ct, line);	line = getLineByType(ct, line);
2351	if (!line)	if (!line)
2352	break;  /* not found in this entry */	break; /* not found in this entry */
2353
2354		if (line && line->type != LT_MENUENTRY &&
2355		line->numElements >= 2) {
2356		if (!strcmp(line->elements[1].item +
2357		getRootSpecifier(
2358		line->elements[1].item),
2359		kernel + strlen(prefix)))
2360		break;
2361		}
2362		if (line->type == LT_MENUENTRY &&
2363		!strcmp(line->elements[1].item, kernel))
2364		break;
2365		}
2366
2367	if (line && line->type != LT_MENUENTRY &&	/* make sure this entry has a kernel identifier; this skips
2368	line->numElements >= 2) {	* non-Linux boot entries (could find netbsd etc, though, which is
2369	rootspec = getRootSpecifier(line->elements[1].item);	* unfortunate)
2370	if (!strcmp(line->elements[1].item +	*/
2371	((rootspec != NULL) ? strlen(rootspec) : 0),	if (line
2372	kernel + strlen(prefix)))	&& getLineByType(LT_KERNEL | LT_HYPER |
2373	break;	LT_KERNEL_EFI | LT_KERNEL_16,
2374		entry->lines))
2375		break; /* found 'im! */
2376	}	}
	if(line->type == LT_MENUENTRY &&
	!strcmp(line->elements[1].item, kernel))
	break;
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines))
	break; /* found 'im! */
	}
2377
2378	if (index) *index = i;	if (index)
2379	}	*index = i;
2380		}
2381
2382	return entry;	return entry;
2383	}	}
2384
2385	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2386	int * index) {	int *index)
2387	struct singleEntry * entry;	{
2388	struct singleLine * line;	struct singleEntry *entry;
2389	int i;	struct singleLine *line;
2390	char * newtitle;	int i;
2391		char *newtitle;
2392	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2393	if (index && i < *index)	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2394	continue;	if (index && i < *index)
2395	line = getLineByType(LT_TITLE, entry->lines);	continue;
2396	if (!line)	line = getLineByType(LT_TITLE, entry->lines);
2397	line = getLineByType(LT_MENUENTRY, entry->lines);	if (!line)
2398	if (!line)	line = getLineByType(LT_MENUENTRY, entry->lines);
2399	continue;	if (!line)
2400	newtitle = grub2ExtractTitle(line);	continue;
2401	if (!newtitle)	newtitle = grub2ExtractTitle(line);
2402	continue;	if (!newtitle)
2403	if (!strcmp(title, newtitle))	continue;
2404	break;	if (!strcmp(title, newtitle))
2405	}	break;
2406		}
2407
2408	if (!entry)	if (!entry)
2409	return NULL;	return NULL;
2410
2411	if (index)	if (index)
2412	*index = i;	*index = i;
2413	return entry;	return entry;
2414	}	}
2415
2416	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2417	struct singleEntry * entry;	{
2418		struct singleEntry *entry;
2419	entry = cfg->entries;
2420	while (index && entry) {	entry = cfg->entries;
2421	entry = entry->next;	while (index && entry) {
2422	index--;	entry = entry->next;
2423	}	index--;
2424		}
2425
2426	return entry;	return entry;
2427	}	}
2428
2429	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 2009  struct singleEntry * findEntryByIndex(st	Line 2431  struct singleEntry * findEntryByIndex(st
2431	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2432	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2433	* bail. */	* bail. */
2434	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2435	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2436	struct singleEntry * entry, * entry2;	{
2437	int index;	struct singleEntry *entry, *entry2;
2438		int index;
2439	if (cfg->cfi->defaultIsSaved) {
2440	if (cfg->cfi->getEnv) {	if (cfg->cfi->defaultIsSaved) {
2441	char *defTitle = cfg->cfi->getEnv(cfg->cfi, "saved_entry");	if (cfg->cfi->getEnv) {
2442	if (defTitle) {	char *defTitle =
2443	int index = 0;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2444	entry = findEntryByTitle(cfg, defTitle, &index);	if (defTitle) {
2445	}	int index = 0;
2446	}	if (isnumber(defTitle)) {
2447	} else if (cfg->defaultImage > -1) {	index = atoi(defTitle);
2448	entry = findEntryByIndex(cfg, cfg->defaultImage);	entry = findEntryByIndex(cfg, index);
2449	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	} else {
2450	if (indexPtr) *indexPtr = cfg->defaultImage;	entry =
2451	return entry;	findEntryByTitle(cfg, defTitle,
2452		&index);
2453		}
2454		if (entry
2455		&& suitableImage(entry, prefix, skipRemoved,
2456		flags)) {
2457		cfg->defaultImage = index;
2458		if (indexPtr)
2459		*indexPtr = index;
2460		return entry;
2461		}
2462		}
2463		}
2464		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2465		entry = findEntryByIndex(cfg, cfg->defaultImage);
2466		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2467		if (indexPtr)
2468		*indexPtr = cfg->defaultImage;
2469		return entry;
2470		}
2471	}	}
	}
2472
2473	index = 0;	index = 0;
2474	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2475	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2476	int j;	int j, unmodifiedIndex;
2477	for (j = 0; j < index; j++) {
2478	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2479	if (entry2->skip) index--;
2480	}	for (j = 0; j < unmodifiedIndex; j++) {
2481	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2482		if (entry2->skip)
2483		index--;
2484		}
2485		if (indexPtr)
2486		*indexPtr = index;
2487
2488		return entry;
2489		}
2490
2491	return entry;	index++;
2492	}	}
2493
2494	index++;	fprintf(stderr,
2495	}	_("grubby fatal error: unable to find a suitable template\n"));
	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));
2496
2497	return NULL;	return NULL;
2498	}	}
2499
2500	char * findBootPrefix(void) {	char *findBootPrefix(void)
2501	struct stat sb, sb2;	{
2502		struct stat sb, sb2;
2503
2504	stat("/", &sb);	stat("/", &sb);
2505	#ifdef __ia64__	#ifdef __ia64__
2506	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2507	#else	#else
2508	stat("/boot", &sb2);	stat("/boot", &sb2);
2509	#endif	#endif
2510
2511	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2512	return strdup("");	return strdup("");
2513
2514	#ifdef __ia64__	#ifdef __ia64__
2515	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2516	#else	#else
2517	return strdup("/boot");	return strdup("/boot");
2518	#endif	#endif
2519	}	}
2520
2521	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2522	const char * prefix) {	const char *prefix)
2523	struct singleEntry * entry;	{
2524		struct singleEntry *entry;
	if (!image)
	return;
	/* check and see if we're removing the default image */
	if (isdigit(*image)) {
	entry = findEntryByPath(cfg, image, prefix, NULL);
	if(entry)
	entry->skip = 1;
	return;
	}
2525
2526	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2527	entry->skip = 1;	return;
	}
2528
2529	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2530	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2531	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2532	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2533	int i, j;	entry->skip = 1;
2534		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if ((index >= 0) && config->cfi->defaultIsIndex) {
	if (findEntryByIndex(config, index))
	config->defaultImage = index;
	else
	config->defaultImage = -1;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2535	}	}
	}
2536
2537	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2538	changes */	entry->skip = 1;
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2539	}	}
2540
2541	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2542	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2543	int j;	const char *prefix, int flags,
2544		int newDefaultBootEntryIndex, int newBootEntryIndex)
2545	if (config->fallbackImage == -1) return;	{
2546		struct singleEntry *bootEntry, *newDefault;
2547	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
	if (hasNew)
	config->fallbackImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2548
2549	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* initialize */
2550	struct singleLine * line;	currentLookupIndex = FIRST_ENTRY_INDEX;
	char * root = NULL;
	int i;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2551
2552	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* handle the two cases where the user explictly picks the default
2553	printf("kernel=%s\n", line->elements[1].item);	* boot entry index as it would exist post-modification */
	else
	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	if (line->numElements >= 3) {
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2554
2555	i++;	/* Case 1: user chose to make the latest boot entry the default */
2556		if (newBootEntryIsDefault) {
2557		config->defaultImage = newBootEntryIndex;
2558		return;
2559	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2560
2561	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2562	i = 1;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2563	while (i < line->numElements) {	indexToVerify = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2564
2565	printf("%s%s", s, line->elements[i].indent);	/* user chose to make latest boot entry the default */
2566		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2567		config->defaultImage = newBootEntryIndex;
2568		return;
2569	}	}
2570
2571	i++;	/* the user picks the default index based on the
2572	}	* order of the bootloader configuration after
2573		* modification; ensure we are checking for the
2574		* existence of the correct entry */
2575		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2576		if (!config->isModified)
2577		indexToVerify--;
2578		}
2579
2580	s = line->elements[i - 1].indent;	/* verify the user selected index will exist */
2581	printf("\"\n");	if (findEntryByIndex(config, indexToVerify)) {
2582	}	config->defaultImage = newDefaultBootEntryIndex;
2583	}	} else {
2584		config->defaultImage = NO_DEFAULT_ENTRY;
2585		}
2586
2587	if (!root) {	return;
2588	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2589
2590	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);
	}
2591
2592	line = getLineByType(LT_INITRD|LT_INITRD_EFI, entry->lines);	/* check validity of existing default or first-entry-found
2593		selection */
2594		if (defaultKernelPath) {
2595		/* we must initialize this */
2596		firstKernelEntryIndex = 0;
2597		/* user requested first-entry-found */
2598		if (!findEntryByPath(config, defaultKernelPath,
2599		prefix, &firstKernelEntryIndex)) {
2600		/* don't change default if can't find match */
2601		config->defaultImage = NO_DEFAULT_ENTRY;
2602		return;
2603		}
2604
2605	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2606
2607	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2608	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2609
2610	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2611	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2612	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2613	} else {	config->defaultImage++;
2614	char * title;	}
2615	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2616	title = grub2ExtractTitle(line);	/* check to see if the default is stored in the environment */
2617	if (title)	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2618	printf("title=%s\n", title);	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2619	}	{
2620	}	if (config->cfi->defaultIsSaved) {
2621		if (config->cfi->getEnv) {
2622		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2623
2624		if (defaultTitle) {
2625		if (isnumber(defaultTitle)) {
2626		currentLookupIndex = atoi(defaultTitle);
2627		} else {
2628		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2629		}
2630		/* set the default Image to an actual index */
2631		config->defaultImage = currentLookupIndex;
2632		}
2633		}
2634		}
2635		}
2636		} else {
2637		/* use pre-existing default entry from the file*/
2638		currentLookupIndex = config->defaultImage;
2639		}
2640
2641	int isSuseSystem(void) {	if (isAddingBootEntry
2642	const char * path;	&& (newBootEntryIndex <= config->defaultImage)) {
2643	const static char default_path[] = "/etc/SuSE-release";	config->defaultImage++;
2644
2645	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	if (config->isModified) {
2646	path = default_path;	currentLookupIndex++;
2647		}
2648		}
2649		}
2650
2651	if (!access(path, R_OK))	/* sanity check - is this entry index valid? */
2652	return 1;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	return 0;
	}
2653
2654	int isSuseGrubConf(const char * path) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2655	FILE * grubConf;	/* entry is to be skipped or is invalid */
2656	char * line = NULL;	if (isAddingBootEntry) {
2657	size_t len = 0, res = 0;	config->defaultImage = newBootEntryIndex;
2658		return;
2659	grubConf = fopen(path, "r");	}
2660	if (!grubConf) {	newDefault =
2661	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	findTemplate(config, prefix, &config->defaultImage, 1,
2662	return 0;	flags);
2663	}	if (!newDefault) {
2664		config->defaultImage = NO_DEFAULT_ENTRY;
2665		}
2666
2667	while ((res = getline(&line, &len, grubConf)) != -1) {	return;
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
2668	}	}
	}
2669
2670	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	currentLookupIndex--;
	path);
2671
2672	fclose(grubConf);	/* decrement index by the total number of entries deleted */
	free(line);
	return 0;
	}
2673
2674	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (indexToVerify = currentLookupIndex;
2675	FILE * grubConf;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	char * line = NULL;
	size_t res = 0, len = 0;
	if (!path) return 1;
	if (!lbaPtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
	}
2676
2677	if (!strncmp(line, "setup", 5)) {	bootEntry = findEntryByIndex(config, indexToVerify);
	if (strstr(line, "--force-lba")) {
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2678
2679	free(line);	if (bootEntry && bootEntry->skip) {
2680	fclose(grubConf);	config->defaultImage--;
2681	return 0;	}
2682		}
2683	}	}
2684
2685	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2686	FILE * grubConf;	{
2687	char * line = NULL;	struct singleEntry *entry, *entry2;
2688	size_t res = 0, len = 0;	int j;
2689	char * lastParamPtr = NULL;
2690	char * secLastParamPtr = NULL;	if (config->fallbackImage == -1)
2691	char installDeviceNumber = '\0';	return;
2692	char * bounds = NULL;
2693		entry = findEntryByIndex(config, config->fallbackImage);
2694	if (!path) return 1;	if (!entry || entry->skip) {
2695	if (!devicePtr) return 1;	config->fallbackImage = -1;
2696		return;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (strncmp(line, "setup", 5))
	continue;
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2697	}	}
2698
2699	lastParamPtr = bounds = line + res;	if (hasNew)
2700		config->fallbackImage++;
2701
2702		/* count the number of entries erased before this one */
2703		for (j = 0; j < config->fallbackImage; j++) {
2704		entry2 = findEntryByIndex(config, j);
2705		if (entry2->skip)
2706		config->fallbackImage--;
2707		}
2708		}
2709
2710	/* Last parameter in grub may be an optional IMAGE_DEVICE */	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2711	while (!isspace(*lastParamPtr))	{
2712	lastParamPtr--;	struct singleLine *line;
2713	lastParamPtr++;	char *root = NULL;
2714		int i;
2715		int j;
2716
2717	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2718
2719	if (lastParamPtr + 3 > bounds) {	line =
2720	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2721	fclose(grubConf);	entry->lines);
2722	free(line);	if (!line) {
2723	return 1;	printf("non linux entry\n");
2724		return;
2725	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2726
2727	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2728	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2729	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2730	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2731	while (!isspace(*secLastParamPtr))
2732	secLastParamPtr--;	if (line->numElements >= 3) {
2733	secLastParamPtr++;	printf("args=\"");
2734		i = 2;
2735	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2736	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2737	fclose(grubConf);	root = line->elements[i].item + 5;
2738	free(line);	} else {
2739	return 1;	printf("%s%s", line->elements[i].item,
2740	}	line->elements[i].indent);
2741	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2742	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2743	secLastParamPtr += 3;	i++;
2744	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2745	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
2746	} else {	} else {
2747	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2748		if (line) {
2749		char *s;
2750
2751		printf("args=\"");
2752		i = 1;
2753		while (i < line->numElements) {
2754		if (!strncmp
2755		(line->elements[i].item, "root=", 5)) {
2756		root = line->elements[i].item + 5;
2757		} else {
2758		s = line->elements[i].item;
2759
2760		printf("%s%s", s,
2761		line->elements[i].indent);
2762		}
2763
2764		i++;
2765		}
2766
2767		s = line->elements[i - 1].indent;
2768		printf("\"\n");
2769		}
2770	}	}
2771
2772	*devicePtr = malloc(6);	if (!root) {
2773	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2774	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2775	fclose(grubConf);	root = line->elements[1].item;
2776	free(line);	}
	return 0;
	}
2777
2778	free(line);	if (root) {
2779	fclose(grubConf);	char *s = alloca(strlen(root) + 1);
	return 1;
	}
	int grubGetBootFromDeviceMap(const char * device,
	char ** bootPtr) {
	FILE * deviceMap;
	char * line = NULL;
	size_t res = 0, len = 0;
	char * devicePtr;
	char * bounds = NULL;
	const char * path;
	const static char default_path[] = "/boot/grub/device.map";
	if (!device) return 1;
	if (!bootPtr) return 1;
	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
	path = default_path;
	dbgPrintf("opening grub device.map file from: %s\n", path);
	deviceMap = fopen(path, "r");
	if (!deviceMap)
	return 1;
2780
2781	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2782	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2783	continue;	s[strlen(s) - 1] = '\0';
2784		/* make sure the root doesn't have a trailing " */
2785	if (line[res - 1] == '\n')	printf("root=%s\n", s);
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2786	}	}
2787
2788	devicePtr = line;	line =
2789	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2790		entry->lines);
2791
2792	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2793	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2794	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2795		else
2796		printf("initrd=%s", prefix);
2797
2798	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2799	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2800	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2801	devicePtr++;	printf("\n");
2802		}
2803
2804	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2805	break;	if (line) {
2806		char *entryTitle;
2807		/* if we can extractTitle, then it's a zipl config and
2808		* if not then we go ahead with what's existed prior */
2809		entryTitle = extractTitle(config, line);
2810		if (!entryTitle) {
2811		entryTitle=line->elements[1].item;
2812		}
2813		printf("title=%s\n", entryTitle);
2814		} else {
2815		char *title;
2816		line = getLineByType(LT_MENUENTRY, entry->lines);
2817		if (line) {
2818		title = grub2ExtractTitle(line);
2819		if (title)
2820		printf("title=%s\n", title);
2821		}
2822	}	}
	}
2823
2824	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2825	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2826	return 0;	if (!strncmp
2827		(prefix, line->elements[1].item, strlen(prefix)))
2828		printf("mbmodule%d=", j);
2829		else
2830		printf("mbmodule%d=%s", j, prefix);
2831
2832		for (i = 1; i < line->numElements; i++)
2833		printf("%s%s", line->elements[i].item,
2834		line->elements[i].indent);
2835		printf("\n");
2836		j++;
2837		}
2838		}
2839	}	}
2840
2841	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2842	char * grubDevice;	{
2843		const char *path;
2844		const static char default_path[] = "/etc/SuSE-release";
2845
2846	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2847	dbgPrintf("error looking for grub installation device\n");	path = default_path;
	else
	dbgPrintf("grubby installation device: %s\n", grubDevice);
	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
	dbgPrintf("error looking for grub boot device\n");
	else
	dbgPrintf("grubby boot device: %s\n", *bootPtr);
2848
2849	free(grubDevice);	if (!access(path, R_OK))
2850	return 0;	return 1;
2851		return 0;
2852	}	}
2853
2854	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2855	/*	{
2856	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2857	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2858	* grub on that system.	size_t len = 0, res = 0;
2859	*/
2860	const char * path;	grubConf = fopen(path, "r");
2861	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2862		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2863	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2864	path = default_path;	return 0;
2865		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2866
2867	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2868	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2869	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2870	}	free(line);
2871		return 1;
2872		}
2873		}
2874
2875	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2876		path);
2877
2878		fclose(grubConf);
2879		free(line);
2880		return 0;
2881	}	}
2882
2883	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2884	FILE * in;	{
2885	char buf[1024];	FILE *grubConf;
2886	char * chptr;	char *line = NULL;
2887	char * start;	size_t res = 0, len = 0;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
2888
2889	fclose(in);	if (!path)
2890		return 1;
2891		if (!lbaPtr)
2892		return 1;
2893
2894	return 0;	grubConf = fopen(path, "r");
2895	}	if (!grubConf)
2896		return 1;
2897
2898		while ((res = getline(&line, &len, grubConf)) != -1) {
2899		if (line[res - 1] == '\n')
2900		line[res - 1] = '\0';
2901		else if (len > res)
2902		line[res] = '\0';
2903		else {
2904		line = realloc(line, res + 1);
2905		line[res] = '\0';
2906		}
2907
2908	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2909	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2910	int lba;	*lbaPtr = 1;
2911		} else {
2912	if (isSuseSystem()) {	*lbaPtr = 0;
2913	if (parseSuseGrubConf(&lba, &boot)) {	}
2914	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2915	return;	break;
2916	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2917	}	}
	}
2918
2919	if (lba) printf("lba\n");	free(line);
2920	if (boot) {	fclose(grubConf);
2921	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2922	}	}
2923
2924	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2925	const char * prefix) {	{
2926	int i = 0;	FILE *grubConf;
2927	struct singleEntry * entry;	char *line = NULL;
2928	struct singleLine * line;	size_t res = 0, len = 0;
2929		char *lastParamPtr = NULL;
2930	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2931	if (!entry) {	char installDeviceNumber = '\0';
2932	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
	/* 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);
	}
2933
2934	line = getLineByType(LT_LBA, config->theLines);	if (!path)
2935	if (line) printf("lba\n");	return 1;
2936	}	if (!devicePtr)
2937		return 1;
2938
2939	displayEntry(entry, prefix, i);	grubConf = fopen(path, "r");
2940		if (!grubConf)
2941		return 1;
2942
2943	i++;	while ((res = getline(&line, &len, grubConf)) != -1) {
2944	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	if (strncmp(line, "setup", 5))
2945	displayEntry(entry, prefix, i);	continue;
2946	i++;
2947	}	if (line[res - 1] == '\n')
2948		line[res - 1] = '\0';
2949		else if (len > res)
2950		line[res] = '\0';
2951		else {
2952		line = realloc(line, res + 1);
2953		line[res] = '\0';
2954		}
2955
2956	return 0;	lastParamPtr = bounds = line + res;
	}
2957
2958	struct singleLine * addLineTmpl(struct singleEntry * entry,	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2959	struct singleLine * tmplLine,	while (!isspace(*lastParamPtr))
2960	struct singleLine * prevLine,	lastParamPtr--;
2961	const char * val,	lastParamPtr++;
2962	struct configFileInfo * cfi)
2963	{	secLastParamPtr = lastParamPtr - 2;
2964	struct singleLine * newLine = lineDup(tmplLine);	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2965
2966	if (isEfi && cfi == &grub2ConfigType) {	if (lastParamPtr + 3 > bounds) {
2967	enum lineType_e old = newLine->type;	dbgPrintf("lastParamPtr going over boundary");
2968	newLine->type = preferredLineType(newLine->type, cfi);	fclose(grubConf);
2969	if (old != newLine->type)	free(line);
2970	newLine->elements[0].item = getKeyByType(newLine->type, cfi);	return 1;
2971	}	}
2972		if (!strncmp(lastParamPtr, "(hd", 3))
2973		lastParamPtr += 3;
2974		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2975
2976		/*
2977		* Second last parameter will decide wether last parameter is
2978		* an IMAGE_DEVICE or INSTALL_DEVICE
2979		*/
2980		while (!isspace(*secLastParamPtr))
2981		secLastParamPtr--;
2982		secLastParamPtr++;
2983
2984		if (secLastParamPtr + 3 > bounds) {
2985		dbgPrintf("secLastParamPtr going over boundary");
2986		fclose(grubConf);
2987		free(line);
2988		return 1;
2989		}
2990		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2991		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2992		secLastParamPtr += 3;
2993		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2994		installDeviceNumber = *secLastParamPtr;
2995		} else {
2996		installDeviceNumber = *lastParamPtr;
2997		}
2998
2999	if (val) {	*devicePtr = malloc(6);
3000	/* override the inherited value with our own.	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3001	* This is a little weak because it only applies to elements[1]	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3002	*/	fclose(grubConf);
3003	if (newLine->numElements > 1)	free(line);
3004	removeElement(newLine, 1);	return 0;
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD|LT_KERNEL_EFI|LT_INITRD_EFI)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
3005	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
3006
3007	if (!entry->lines) {	free(line);
3008	/* first one on the list */	fclose(grubConf);
3009	entry->lines = newLine;	return 1;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
3010	}	}
3011
3012	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3013	struct singleLine *  addLine(struct singleEntry * entry,	{
3014	struct configFileInfo * cfi,	FILE *deviceMap;
3015	enum lineType_e type, char * defaultIndent,	char *line = NULL;
3016	const char * val) {	size_t res = 0, len = 0;
3017	struct singleLine * line, * prev;	char *devicePtr;
3018	struct keywordTypes * kw;	char *bounds = NULL;
3019	struct singleLine tmpl;	const char *path;
3020		const static char default_path[] = "/boot/grub/device.map";
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
	}
	}
3021
3022	/* The last non-empty line gives us the indention to us and the line	if (!device)
3023	to insert after. Note that comments are considered empty lines, which	return 1;
3024	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
3025	first line, we use defaultIndent (the first line is normally indented	return 1;
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
3026
3027	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3028	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	path = default_path;
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
3029
3030	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
3031	}	deviceMap = fopen(path, "r");
3032		if (!deviceMap)
3033		return 1;
3034
3035	void removeLine(struct singleEntry * entry, struct singleLine * line) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
3036	struct singleLine * prev;	if (!strncmp(line, "#", 1))
3037	int i;	continue;
3038
3039		if (line[res - 1] == '\n')
3040		line[res - 1] = '\0';
3041		else if (len > res)
3042		line[res] = '\0';
3043		else {
3044		line = realloc(line, res + 1);
3045		line[res] = '\0';
3046		}
3047
3048	for (i = 0; i < line->numElements; i++) {	devicePtr = line;
3049	free(line->elements[i].item);	bounds = line + res;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
3050
3051	if (line == entry->lines) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3052	entry->lines = line->next;	devicePtr++;
3053	} else {	dbgPrintf("device: %s\n", devicePtr);
3054	prev = entry->lines;
3055	while (prev->next != line) prev = prev->next;	if (!strncmp(devicePtr, device, strlen(device))) {
3056	prev->next = line->next;	devicePtr += strlen(device);
3057	}	while (isspace(*devicePtr)
3058		&& ((devicePtr + 1) <= bounds))
3059		devicePtr++;
3060
3061		*bootPtr = strdup(devicePtr);
3062		break;
3063		}
3064		}
3065
3066	free(line);	free(line);
3067		fclose(deviceMap);
3068		return 0;
3069	}	}
3070
3071	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3072	{	{
3073	struct singleLine newLine = {	char *grubDevice;
	.indent = tmplLine->indent,
	.type = tmplLine->type,
	.next = tmplLine->next,
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
3074
3075	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3076	/* move the end-of-line forward */	dbgPrintf("error looking for grub installation device\n");
3077	line->elements[insertHere].indent =	else
3078	line->elements[insertHere-1].indent;	dbgPrintf("grubby installation device: %s\n", grubDevice);
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
3079
3080	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3081		dbgPrintf("error looking for grub boot device\n");
3082		else
3083		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3084
3085	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3086	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3087	}	}
3088
3089	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3090	int i;	{
3091		/*
3092	/* sanity check */	* This SuSE grub configuration file at this location is not your
3093	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3094		* used to setup grub on that system.
3095	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3096	removeHere, line->elements[removeHere].item);	const char *path;
3097		const static char default_path[] = "/etc/grub.conf";
3098
3099	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3100		path = default_path;
3101
3102	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3103	/* previous argument gets this argument's post-indentation */	return 1;
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
3104
3105	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3106	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3107	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3108		return 1;
	line->numElements--;
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements;
	int doreplace;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
3109	}	}
	}
3110
3111	if (!removeArgs) {	if (bootPtr) {
3112	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3113	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3114	}	}
	}
	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3115
3116	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	return 0;
3117	&& !multibootArgs);	}
3118
3119	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3120		{
3121		FILE *in;
3122		char buf[1024];
3123		char *chptr;
3124		char *start;
3125		char *param;
3126
3127	if (multibootArgs && !entry->multiboot)	in = fopen("/etc/sysconfig/grub", "r");
3128	continue;	if (!in)
3129		return 1;
3130
3131	/* Determine where to put the args.  If this config supports	if (lbaPtr)
3132	* LT_KERNELARGS, use that.  Otherwise use	*lbaPtr = 0;
3133	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	if (bootPtr)
3134	*/	*bootPtr = NULL;
3135	if (useKernelArgs) {
3136	line = getLineByType(LT_KERNELARGS, entry->lines);	while (fgets(buf, sizeof(buf), in)) {
3137	if (!line) {	start = buf;
3138	/* no LT_KERNELARGS, need to add it */	while (isspace(*start))
3139	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	start++;
3140	cfg->secondaryIndent, NULL);	if (*start == '#')
3141	}	continue;
3142	firstElement = 1;
3143		chptr = strchr(start, '=');
3144	} else if (multibootArgs) {	if (!chptr)
3145	line = getLineByType(LT_HYPER, entry->lines);	continue;
3146	if (!line) {	chptr--;
3147	/* a multiboot entry without LT_HYPER? */	while (*chptr && isspace(*chptr))
3148	continue;	chptr--;
3149	}	chptr++;
3150	firstElement = 2;	*chptr = '\0';
3151
3152		param = chptr + 1;
3153		while (*param && isspace(*param))
3154		param++;
3155		if (*param == '=') {
3156		param++;
3157		while (*param && isspace(*param))
3158		param++;
3159		}
3160
3161	} else {	chptr = param;
3162	line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI, entry->lines);	while (*chptr && !isspace(*chptr))
3163	if (!line) {	chptr++;
3164	/* no LT_KERNEL or LT_MBMODULE in this entry? */	*chptr = '\0';
3165	continue;
3166	}	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3167	firstElement = 2;	*lbaPtr = 1;
3168		else if (!strcmp(start, "boot") && bootPtr)
3169		*bootPtr = strdup(param);
3170	}	}
3171
3172	/* handle the elilo case which does:	fclose(in);
	*   append="hypervisor args -- kernel args"
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
3173
3174	if (i < line->numElements && doreplace) {	return 0;
3175	/* direct replacement */	}
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
3176
3177	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	void dumpSysconfigGrub(void)
3178	/* root= replacement */	{
3179	rootLine = getLineByType(LT_ROOT, entry->lines);	char *boot = NULL;
3180	if (rootLine) {	int lba;
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
	}
	}
3181
3182	else {	if (isSuseSystem()) {
3183	/* insert/append */	if (parseSuseGrubConf(&lba, &boot)) {
3184	insertElement(line, *arg, i, cfg->cfi);	free(boot);
3185	usedElements = realloc(usedElements, line->numElements *	return;
3186	sizeof(*usedElements));	}
3187	memmove(&usedElements[i + 1], &usedElements[i],	} else {
3188	line->numElements - i - 1);	if (parseSysconfigGrub(&lba, &boot)) {
3189	usedElements[i] = 1;	free(boot);
3190		return;
3191	/* 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);
3192	}	}
	}
3193
3194	free(newArgs);	if (lba)
3195	free(oldArgs);	printf("lba\n");
3196		if (boot) {
3197	return 0;	printf("boot=%s\n", boot);
3198		free(boot);
3199		}
3200	}	}
3201
3202	int updateImage(struct grubConfig * cfg, const char * image,	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3203	const char * prefix, const char * addArgs,	{
3204	const char * removeArgs,	int i = 0;
3205	const char * addMBArgs, const char * removeMBArgs) {	struct singleEntry *entry;
3206	int rc = 0;	struct singleLine *line;
3207
3208	if (!image) return rc;	entry = findEntryByPath(config, kernel, prefix, &i);
3209		if (!entry) {
3210	/* update the main args first... */	fprintf(stderr, _("grubby: kernel not found\n"));
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL|LT_KERNEL_EFI, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD|LT_INITRD_EFI, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, preferredLineType(LT_INITRD, cfg->cfi),
	kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
3211	return 1;	return 1;
3212	}	}
3213
3214	break;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3215	}	be a better way */
3216		if (config->cfi == &grubConfigType) {
3217	return 0;	dumpSysconfigGrub();
3218	}	} else {
3219		line = getLineByType(LT_BOOT, config->theLines);
3220	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (line && line->numElements >= 1) {
3221	int fd;	printf("boot=%s\n", line->elements[1].item);
3222	unsigned char bootSect[512];	}
	int offset;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3223
3224	if (read(fd, bootSect, 512) != 512) {	line = getLineByType(LT_LBA, config->theLines);
3225	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (line)
3226	device, strerror(errno));	printf("lba\n");
3227	return 1;	}
	}
	close(fd);
3228
3229	/* first three bytes should match, a jmp short should be in there */	displayEntry(config, entry, prefix, i);
	if (memcmp(boot, bootSect, 3))
	return 0;
3230
3231	if (boot[1] == JMP_SHORT_OPCODE) {	i++;
3232	offset = boot[2] + 2;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3233	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	displayEntry(config, entry, prefix, i);
3234	offset = (boot[3] << 8) + boot[2] + 2;	i++;
3235	} 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;
	}
3236
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3237	return 0;	return 0;
	return 2;
3238	}	}
3239
3240	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3241	int fd;	struct singleLine *tmplLine,
3242	char buf[65536];	struct singleLine *prevLine,
3243	char * end;	const char *val, struct configFileInfo *cfi)
3244	char * chptr;	{
3245	char * chptr2;	struct singleLine *newLine = lineDup(tmplLine);
	int rc;
	/* it's on raid; we need to parse /proc/mdstat and check all of the
	*raw* devices listed in there */
3246
3247	if (!strncmp(mdDev, "/dev/", 5))	if (isEfi && cfi == &grub2ConfigType) {
3248	mdDev += 5;	enum lineType_e old = newLine->type;
3249		newLine->type = preferredLineType(newLine->type, cfi);
3250		if (old != newLine->type)
3251		newLine->elements[0].item =
3252		getKeyByType(newLine->type, cfi);
3253		}
3254
3255	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (val) {
3256	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	/* override the inherited value with our own.
3257	strerror(errno));	* This is a little weak because it only applies to elements[1]
3258	return 2;	*/
3259	}	if (newLine->numElements > 1)
3260		removeElement(newLine, 1);
3261		insertElement(newLine, val, 1, cfi);
3262
3263		/* but try to keep the rootspec from the template... sigh */
3264		if (tmplLine->
3265		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3266		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3267		LT_INITRD_16)) {
3268		size_t rs = getRootSpecifier(tmplLine->elements[1].item);
3269		if (rs > 0) {
3270		free(newLine->elements[1].item);
3271		newLine->elements[1].item = sdupprintf(
3272		"%.*s%s", (int) rs,
3273		tmplLine->elements[1].item, val);
3274		}
3275		}
3276		}
3277
3278	rc = read(fd, buf, sizeof(buf) - 1);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3279	if (rc < 0 || rc == (sizeof(buf) - 1)) {	newLine->elements[0].item : "");
	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3280
3281	chptr = buf;	if (!entry->lines) {
3282	while (*chptr) {	/* first one on the list */
3283	end = strchr(chptr, '\n');	entry->lines = newLine;
3284	if (!end) break;	} else if (prevLine) {
3285	*end = '\0';	/* add after prevLine */
3286		newLine->next = prevLine->next;
3287		prevLine->next = newLine;
3288		}
3289
3290	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	return newLine;
3291	chptr[strlen(mdDev)] == ' ') {	}
3292
3293	/* found the device */	/* val may be NULL */
3294	while (*chptr && *chptr != ':') chptr++;	struct singleLine *addLine(struct singleEntry *entry,
3295	chptr++;	struct configFileInfo *cfi,
3296	while (*chptr && isspace(*chptr)) chptr++;	enum lineType_e type, char *defaultIndent,
3297		const char *val)
3298	/* skip the "active" bit */	{
3299	while (*chptr && !isspace(*chptr)) chptr++;	struct singleLine *line, *prev;
3300	while (*chptr && isspace(*chptr)) chptr++;	struct keywordTypes *kw;
3301		struct singleLine tmpl;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3302
3303	/*  we're good to go */	/* NB: This function shouldn't allocate items on the heap, rather on
3304	return 2;	* the stack since it calls addLineTmpl which will make copies.
3305		*/
3306		if (type == LT_TITLE && cfi->titleBracketed) {
3307		/* we're doing a bracketed title (zipl) */
3308		tmpl.type = type;
3309		tmpl.numElements = 1;
3310		tmpl.elements = alloca(sizeof(*tmpl.elements));
3311		tmpl.elements[0].item = alloca(strlen(val) + 3);
3312		sprintf(tmpl.elements[0].item, "[%s]", val);
3313		tmpl.elements[0].indent = "";
3314		val = NULL;
3315		} else if (type == LT_MENUENTRY) {
3316		char *lineend = "--class gnu-linux --class gnu --class os {";
3317		if (!val) {
3318		fprintf(stderr,
3319		"Line type LT_MENUENTRY requires a value\n");
3320		abort();
3321		}
3322		kw = getKeywordByType(type, cfi);
3323		if (!kw) {
3324		fprintf(stderr,
3325		"Looking up keyword for unknown type %d\n",
3326		type);
3327		abort();
3328		}
3329		tmpl.indent = "";
3330		tmpl.type = type;
3331		tmpl.numElements = 3;
3332		tmpl.elements =
3333		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3334		tmpl.elements[0].item = kw->key;
3335		tmpl.elements[0].indent = alloca(2);
3336		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3337		tmpl.elements[1].item = (char *)val;
3338		tmpl.elements[1].indent = alloca(2);
3339		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3340		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3341		strcpy(tmpl.elements[2].item, lineend);
3342		tmpl.elements[2].indent = "";
3343		} else {
3344		kw = getKeywordByType(type, cfi);
3345		if (!kw) {
3346		fprintf(stderr,
3347		"Looking up keyword for unknown type %d\n",
3348		type);
3349		abort();
3350		}
3351		tmpl.type = type;
3352		tmpl.numElements = val ? 2 : 1;
3353		tmpl.elements =
3354		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3355		tmpl.elements[0].item = kw->key;
3356		tmpl.elements[0].indent = alloca(2);
3357		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3358		if (val) {
3359		tmpl.elements[1].item = (char *)val;
3360		tmpl.elements[1].indent = "";
3361		}
3362	}	}
3363
3364	chptr = end + 1;	/* The last non-empty line gives us the indention to us and the line
3365	}	* to insert after. Note that comments are considered empty lines,
3366		* which may not be ideal? If there are no lines or we are looking at
3367		* the first line, we use defaultIndent (the first line is normally
3368		* indented differently from the rest) */
3369		for (line = entry->lines, prev = NULL; line; line = line->next) {
3370		if (line->numElements)
3371		prev = line;
3372		/* fall back on the last line if prev isn't otherwise set */
3373		if (!line->next && !prev)
3374		prev = line;
3375		}
3376
3377		struct singleLine *menuEntry;
3378		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3379		if (tmpl.type == LT_ENTRY_END) {
3380		if (menuEntry)
3381		tmpl.indent = menuEntry->indent;
3382		else
3383		tmpl.indent = defaultIndent ? : "";
3384		} else if (tmpl.type != LT_MENUENTRY) {
3385		if (menuEntry)
3386		tmpl.indent = "\t";
3387		else if (prev == entry->lines)
3388		tmpl.indent = defaultIndent ? : "";
3389		else
3390		tmpl.indent = prev->indent;
3391		}
3392
3393	fprintf(stderr,	return addLineTmpl(entry, &tmpl, prev, val, cfi);
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3394	}	}
3395
3396	int checkForLilo(struct grubConfig * config) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3397	int fd;	{
3398	unsigned char boot[512];	struct singleLine *prev;
3399	struct singleLine * line;	int i;
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3400
3401	if (line->numElements != 2) return 1;	for (i = 0; i < line->numElements; i++) {
3402		free(line->elements[i].item);
3403		free(line->elements[i].indent);
3404		}
3405		free(line->elements);
3406		free(line->indent);
3407
3408	fd = open("/boot/boot.b", O_RDONLY);	if (line == entry->lines) {
3409	if (fd < 0) {	entry->lines = line->next;
3410	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	} else {
3411	"/boot/boot.b", strerror(errno));	prev = entry->lines;
3412	return 1;	while (prev->next != line)
3413	}	prev = prev->next;
3414		prev->next = line->next;
3415		}
3416
3417	if (read(fd, boot, 512) != 512) {	free(line);
3418	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
3419	"/boot/boot.b", strerror(errno));
3420	return 1;	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3421	}	{
3422	close(fd);	struct singleLine newLine = {
3423		.indent = tmplLine->indent,
3424		.type = tmplLine->type,
3425		.next = tmplLine->next,
3426		};
3427		int firstQuotedItem = -1;
3428		int quoteLen = 0;
3429		int j;
3430		int element = 0;
3431		char *c;
3432
3433	if (!strncmp("/dev/md", line->elements[1].item, 7))	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3434	return checkLiloOnRaid(line->elements[1].item, boot);	strcpy(c, tmplLine->elements[0].item);
3435		insertElement(&newLine, c, element++, cfi);
3436		free(c);
3437		c = NULL;
3438
3439		for (j = 1; j < tmplLine->numElements; j++) {
3440		if (firstQuotedItem == -1) {
3441		quoteLen += strlen(tmplLine->elements[j].item);
3442
3443		if (isquote(tmplLine->elements[j].item[0])) {
3444		firstQuotedItem = j;
3445		quoteLen +=
3446		strlen(tmplLine->elements[j].indent);
3447		} else {
3448		c = malloc(quoteLen + 1);
3449		strcpy(c, tmplLine->elements[j].item);
3450		insertElement(&newLine, c, element++, cfi);
3451		free(c);
3452		quoteLen = 0;
3453		}
3454		} else {
3455		int itemlen = strlen(tmplLine->elements[j].item);
3456		quoteLen += itemlen;
3457		quoteLen += strlen(tmplLine->elements[j].indent);
3458
3459		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3460		c = malloc(quoteLen + 1);
3461		c[0] = '\0';
3462		for (int i = firstQuotedItem; i < j + 1; i++) {
3463		strcat(c, tmplLine->elements[i].item);
3464		strcat(c, tmplLine->elements[i].indent);
3465		}
3466		insertElement(&newLine, c, element++, cfi);
3467		free(c);
3468
3469	return checkDeviceBootloader(line->elements[1].item, boot);	firstQuotedItem = -1;
3470		quoteLen = 0;
3471		}
3472		}
3473		}
3474		while (tmplLine->numElements)
3475		removeElement(tmplLine, 0);
3476		if (tmplLine->elements)
3477		free(tmplLine->elements);
3478
3479		tmplLine->numElements = newLine.numElements;
3480		tmplLine->elements = newLine.elements;
3481	}	}
3482
3483	int checkForGrub2(struct grubConfig * config) {	static void insertElement(struct singleLine *line,
3484	if (!access("/etc/grub.d/", R_OK))	const char *item, int insertHere,
3485	return 2;	struct configFileInfo *cfi)
3486		{
3487		struct keywordTypes *kw;
3488		char indent[2] = "";
3489
3490		/* sanity check */
3491		if (insertHere > line->numElements) {
3492		dbgPrintf
3493		("insertElement() adjusting insertHere from %d to %d\n",
3494		insertHere, line->numElements);
3495		insertHere = line->numElements;
3496		}
3497
3498		line->elements = realloc(line->elements, (line->numElements + 1) *
3499		sizeof(*line->elements));
3500		memmove(&line->elements[insertHere + 1],
3501		&line->elements[insertHere],
3502		(line->numElements - insertHere) * sizeof(*line->elements));
3503		line->elements[insertHere].item = strdup(item);
3504
3505		kw = getKeywordByType(line->type, cfi);
3506
3507		if (line->numElements == 0) {
3508		indent[0] = '\0';
3509		} else if (insertHere == 0) {
3510		indent[0] = kw->nextChar;
3511		} else if (kw->separatorChar != '\0') {
3512		indent[0] = kw->separatorChar;
3513		} else {
3514		indent[0] = ' ';
3515		}
3516
3517		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3518		/* move the end-of-line forward */
3519		line->elements[insertHere].indent =
3520		line->elements[insertHere - 1].indent;
3521		line->elements[insertHere - 1].indent = strdup(indent);
3522		} else {
3523		line->elements[insertHere].indent = strdup(indent);
3524		}
3525
3526		line->numElements++;
3527
3528		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3529		line->elements[0].item,
3530		line->elements[insertHere].item,
3531		line->elements[insertHere].indent, insertHere);
3532		}
3533
3534	return 1;	static void removeElement(struct singleLine *line, int removeHere)
3535		{
3536		int i;
3537
3538		/* sanity check */
3539		if (removeHere >= line->numElements)
3540		return;
3541
3542		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3543		removeHere, line->elements[removeHere].item);
3544
3545		free(line->elements[removeHere].item);
3546
3547		if (removeHere > 1) {
3548		/* previous argument gets this argument's post-indentation */
3549		free(line->elements[removeHere - 1].indent);
3550		line->elements[removeHere - 1].indent =
3551		line->elements[removeHere].indent;
3552		} else {
3553		free(line->elements[removeHere].indent);
3554		}
3555
3556		/* now collapse the array, but don't bother to realloc smaller */
3557		for (i = removeHere; i < line->numElements - 1; i++)
3558		line->elements[i] = line->elements[i + 1];
3559
3560		line->numElements--;
3561	}	}
3562
3563	int checkForGrub(struct grubConfig * config) {	static int argNameMatch(const char *one, const char *two)
3564	int fd;	{
3565	unsigned char bootSect[512];	char *first, *second;
3566	char * boot;	char *chptra, *chptrb;
3567	int onSuse = isSuseSystem();	int rc;
3568
3569		first = strcpy(alloca(strlen(one) + 1), one);
3570		second = strcpy(alloca(strlen(two) + 1), two);
3571
3572	if (onSuse) {	chptra = strchr(first, '=');
3573	if (parseSuseGrubConf(NULL, &boot))	if (chptra)
3574	return 0;	*chptra = '\0';
	} else {
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
	}
3575
3576	/* assume grub is not installed -- not an error condition */	chptrb = strchr(second, '=');
3577	if (!boot)	if (chptrb)
3578	return 0;	*chptrb = '\0';
3579
3580		rc = strcmp(first, second);
3581
3582		if (chptra)
3583		*chptra = '=';
3584		if (chptrb)
3585		*chptrb = '=';
3586
3587		return rc;
3588		}
3589
3590		static int argHasValue(const char *arg)
3591		{
3592		char *chptr;
3593
3594	fd = open("/boot/grub/stage1", O_RDONLY);	chptr = strchr(arg, '=');
3595	if (fd < 0)	if (chptr)
3596	/* this doesn't exist if grub hasn't been installed */	return 1;
3597	return 0;	return 0;
3598		}
3599
3600	if (read(fd, bootSect, 512) != 512) {	static int argValueMatch(const char *one, const char *two)
3601	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3602	"/boot/grub/stage1", strerror(errno));	char *first, *second;
3603	close(fd);	char *chptra, *chptrb;
	return 1;
	}
	close(fd);
3604
3605	/* The more elaborate checks do not work on SuSE. The checks done	first = strcpy(alloca(strlen(one) + 1), one);
3606	* seem to be reasonble (at least for now), so just return success	second = strcpy(alloca(strlen(two) + 1), two);
3607	*/
3608	if (onSuse)	chptra = strchr(first, '=');
3609	return 2;	if (chptra)
3610		chptra += 1;
3611
3612	return checkDeviceBootloader(boot, bootSect);	chptrb = strchr(second, '=');
3613		if (chptrb)
3614		chptrb += 1;
3615
3616		if (!chptra && !chptrb)
3617		return 0;
3618		else if (!chptra)
3619		return *chptrb - 0;
3620		else if (!chptrb)
3621		return 0 - *chptra;
3622		else
3623		return strcmp(chptra, chptrb);
3624	}	}
3625
3626	int checkForExtLinux(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3627	int fd;	const char *prefix, const char *addArgs,
3628	unsigned char bootSect[512];	const char *removeArgs, int multibootArgs)
3629	char * boot;	{
3630	char executable[] = "/boot/extlinux/extlinux";	struct singleEntry *entry;
3631		struct singleLine *line, *rootLine;
3632		int index = 0;
3633		int i, k;
3634		const char **newArgs, **oldArgs;
3635		const char **arg;
3636		int useKernelArgs, useRoot;
3637		int firstElement;
3638		int *usedElements;
3639		int doreplace;
3640
3641	printf("entered: checkForExtLinux()\n");	if (!image)
3642		return 0;
3643
3644	if (parseSysconfigGrub(NULL, &boot))	if (!addArgs) {
3645	return 0;	newArgs = malloc(sizeof(*newArgs));
3646		*newArgs = NULL;
3647		} else {
3648		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3649		fprintf(stderr,
3650		_("grubby: error separating arguments '%s'\n"),
3651		addArgs);
3652		return 1;
3653		}
3654		}
3655
3656		if (!removeArgs) {
3657		oldArgs = malloc(sizeof(*oldArgs));
3658		*oldArgs = NULL;
3659		} else {
3660		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3661		fprintf(stderr,
3662		_("grubby: error separating arguments '%s'\n"),
3663		removeArgs);
3664		free(newArgs);
3665		return 1;
3666		}
3667		}
3668
3669		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3670		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3671
3672		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3673		&& !multibootArgs);
3674
3675		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3676
3677		if (multibootArgs && !entry->multiboot)
3678		continue;
3679
3680		/* Determine where to put the args.  If this config supports
3681		* LT_KERNELARGS, use that.  Otherwise use
3682		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3683		*/
3684		if (useKernelArgs) {
3685		line = getLineByType(LT_KERNELARGS, entry->lines);
3686		if (!line) {
3687		/* no LT_KERNELARGS, need to add it */
3688		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3689		cfg->secondaryIndent, NULL);
3690		}
3691		firstElement = 1;
3692
3693		} else if (multibootArgs) {
3694		line = getLineByType(LT_HYPER, entry->lines);
3695		if (!line) {
3696		/* a multiboot entry without LT_HYPER? */
3697		continue;
3698		}
3699		firstElement = 2;
3700
3701		} else {
3702		line =
3703		getLineByType(LT_KERNEL | LT_MBMODULE |
3704		LT_KERNEL_EFI | LT_KERNEL_16,
3705		entry->lines);
3706		if (!line) {
3707		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3708		continue;
3709		}
3710		firstElement = 2;
3711		}
3712
3713		/* handle the elilo case which does:
3714		*   append="hypervisor args -- kernel args"
3715		*/
3716		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3717		/* this is a multiboot entry, make sure there's
3718		* -- on the args line
3719		*/
3720		for (i = firstElement; i < line->numElements; i++) {
3721		if (!strcmp(line->elements[i].item, "--"))
3722		break;
3723		}
3724		if (i == line->numElements) {
3725		/* assume all existing args are kernel args,
3726		* prepend -- to make it official
3727		*/
3728		insertElement(line, "--", firstElement,
3729		cfg->cfi);
3730		i = firstElement;
3731		}
3732		if (!multibootArgs) {
3733		/* kernel args start after the -- */
3734		firstElement = i + 1;
3735		}
3736		} else if (cfg->cfi->mbConcatArgs) {
3737		/* this is a non-multiboot entry, remove hyper args */
3738		for (i = firstElement; i < line->numElements; i++) {
3739		if (!strcmp(line->elements[i].item, "--"))
3740		break;
3741		}
3742		if (i < line->numElements) {
3743		/* remove args up to -- */
3744		while (strcmp
3745		(line->elements[firstElement].item,
3746		"--"))
3747		removeElement(line, firstElement);
3748		/* remove -- */
3749		removeElement(line, firstElement);
3750		}
3751		}
3752
3753		usedElements = calloc(line->numElements, sizeof(*usedElements));
3754
3755		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3756
3757		doreplace = 1;
3758		for (i = firstElement; i < line->numElements; i++) {
3759		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3760		!strcmp(line->elements[i].item, "--")) {
3761		/* reached the end of hyper args, insert here */
3762		doreplace = 0;
3763		break;
3764		}
3765		if (usedElements[i])
3766		continue;
3767		if (!argNameMatch(line->elements[i].item, *arg)) {
3768		usedElements[i] = 1;
3769		break;
3770		}
3771		}
3772
3773		if (i < line->numElements && doreplace) {
3774		/* direct replacement */
3775		free(line->elements[i].item);
3776		line->elements[i].item = strdup(*arg);
3777
3778		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3779		/* root= replacement */
3780		rootLine = getLineByType(LT_ROOT, entry->lines);
3781		if (rootLine) {
3782		free(rootLine->elements[1].item);
3783		rootLine->elements[1].item =
3784		strdup(*arg + 5);
3785		} else {
3786		rootLine =
3787		addLine(entry, cfg->cfi, LT_ROOT,
3788		cfg->secondaryIndent,
3789		*arg + 5);
3790		}
3791		}
3792
3793		else {
3794		/* insert/append */
3795		insertElement(line, *arg, i, cfg->cfi);
3796		usedElements =
3797		realloc(usedElements,
3798		line->numElements *
3799		sizeof(*usedElements));
3800		memmove(&usedElements[i + 1], &usedElements[i],
3801		line->numElements - i - 1);
3802		usedElements[i] = 1;
3803
3804		/* if we updated a root= here even though
3805		* there is a LT_ROOT available we need to
3806		* remove the LT_ROOT entry (this will happen
3807		* if we switch from a device to a label) */
3808		if (useRoot && !strncmp(*arg, "root=", 5)) {
3809		rootLine =
3810		getLineByType(LT_ROOT,
3811		entry->lines);
3812		if (rootLine)
3813		removeLine(entry, rootLine);
3814		}
3815		}
3816		}
3817
3818		free(usedElements);
3819
3820		for (arg = oldArgs; *arg; arg++) {
3821		for (i = firstElement; i < line->numElements; i++) {
3822		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3823		!strcmp(line->elements[i].item, "--"))
3824		/* reached the end of hyper args, stop here */
3825		break;
3826		if (!argNameMatch(line->elements[i].item, *arg)) {
3827		if (!argHasValue(*arg) ||
3828		!argValueMatch(line->elements[i].item, *arg)) {
3829		removeElement(line, i);
3830		break;
3831		}
3832		}
3833		}
3834		/* handle removing LT_ROOT line too */
3835		if (useRoot && !strncmp(*arg, "root=", 5)) {
3836		rootLine = getLineByType(LT_ROOT, entry->lines);
3837		if (rootLine)
3838		removeLine(entry, rootLine);
3839		}
3840		}
3841
3842		if (line->numElements == 1) {
3843		/* don't need the line at all (note it has to be a
3844		LT_KERNELARGS for this to happen */
3845		removeLine(entry, line);
3846		}
3847		}
3848
3849		free(newArgs);
3850		free(oldArgs);
3851
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3852	return 0;	return 0;
3853		}
3854
3855		int updateImage(struct grubConfig *cfg, const char *image,
3856		const char *prefix, const char *addArgs,
3857		const char *removeArgs,
3858		const char *addMBArgs, const char *removeMBArgs)
3859		{
3860		int rc = 0;
3861
3862		if (!image)
3863		return rc;
3864
3865		/* update the main args first... */
3866		if (addArgs || removeArgs)
3867		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3868		0);
3869		if (rc)
3870		return rc;
3871
3872		/* and now any multiboot args */
3873		if (addMBArgs || removeMBArgs)
3874		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3875		removeMBArgs, 1);
3876		return rc;
3877		}
3878
3879		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3880		const char *image, const char *prefix, const char *initrd,
3881		const char *title)
3882		{
3883		struct singleEntry *entry;
3884		struct singleLine *line, *kernelLine, *endLine = NULL;
3885		int index = 0;
3886
3887		if (!image)
3888		return 0;
3889
3890		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3891		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3892		if (!kernelLine)
3893		continue;
3894
3895		/* if title is supplied, the entry's title must match it. */
3896		if (title) {
3897		char *linetitle;
3898
3899		line =
3900		getLineByType(LT_TITLE | LT_MENUENTRY,
3901		entry->lines);
3902		if (!line)
3903		continue;
3904
3905		linetitle = extractTitle(cfg, line);
3906		if (!linetitle)
3907		continue;
3908		if (strcmp(title, linetitle)) {
3909		free(linetitle);
3910		continue;
3911		}
3912		free(linetitle);
3913		}
3914
3915		if (prefix) {
3916		int prefixLen = strlen(prefix);
3917		if (!strncmp(initrd, prefix, prefixLen))
3918		initrd += prefixLen;
3919		}
3920		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3921		if (endLine)
3922		removeLine(entry, endLine);
3923		line =
3924		addLine(entry, cfg->cfi,
3925		preferredLineType(LT_MBMODULE, cfg->cfi),
3926		kernelLine->indent, initrd);
3927		if (!line)
3928		return 1;
3929		if (endLine) {
3930		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3931		if (!line)
3932		return 1;
3933		}
3934
3935		break;
3936		}
3937
	fd = open(executable, O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3938	return 0;	return 0;
3939		}
3940
3941	if (read(fd, bootSect, 512) != 512) {	int updateInitrd(struct grubConfig *cfg, const char *image,
3942	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *prefix, const char *initrd, const char *title)
3943	executable, strerror(errno));	{
3944	return 1;	struct singleEntry *entry;
3945	}	struct singleLine *line, *kernelLine, *endLine = NULL;
3946	close(fd);	int index = 0;
3947
3948		if (!image)
3949		return 0;
3950
3951		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3952		kernelLine =
3953		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3954		entry->lines);
3955		if (!kernelLine)
3956		continue;
3957
3958		/* if title is supplied, the entry's title must match it. */
3959		if (title) {
3960		char *linetitle;
3961
3962		line =
3963		getLineByType(LT_TITLE | LT_MENUENTRY,
3964		entry->lines);
3965		if (!line)
3966		continue;
3967
3968		linetitle = extractTitle(cfg, line);
3969		if (!linetitle)
3970		continue;
3971		if (strcmp(title, linetitle)) {
3972		free(linetitle);
3973		continue;
3974		}
3975		free(linetitle);
3976		}
3977
3978		line =
3979		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3980		entry->lines);
3981		if (line)
3982		removeLine(entry, line);
3983		if (prefix) {
3984		int prefixLen = strlen(prefix);
3985		if (!strncmp(initrd, prefix, prefixLen))
3986		initrd += prefixLen;
3987		}
3988		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3989		if (endLine)
3990		removeLine(entry, endLine);
3991		enum lineType_e lt;
3992		switch (kernelLine->type) {
3993		case LT_KERNEL:
3994		lt = LT_INITRD;
3995		break;
3996		case LT_KERNEL_EFI:
3997		lt = LT_INITRD_EFI;
3998		break;
3999		case LT_KERNEL_16:
4000		lt = LT_INITRD_16;
4001		break;
4002		default:
4003		lt = preferredLineType(LT_INITRD, cfg->cfi);
4004		}
4005		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
4006		if (!line)
4007		return 1;
4008		if (endLine) {
4009		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
4010		if (!line)
4011		return 1;
4012		}
4013
4014	return checkDeviceBootloader(boot, bootSect);	break;
4015		}
4016
4017		return 0;
4018	}	}
4019
4020	int checkForYaboot(struct grubConfig * config) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
4021	/*	{
4022	* This is a simplistic check that we consider good enough for own puporses	int fd;
4023	*	unsigned char bootSect[512];
4024	* If we were to properly check if yaboot is *installed* we'd need to:	int offset;
4025	* 1) get the system boot device (LT_BOOT)
4026	* 2) considering it's a raw filesystem, check if the yaboot binary matches	fd = open(device, O_RDONLY);
4027	*    the content on the boot device	if (fd < 0) {
4028	* 3) if not, copy the binary to a temporary file and run "addnote" on it	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4029	* 4) check again if binary and boot device contents match	device, strerror(errno));
4030	*/	return 1;
4031	if (!access("/etc/yaboot.conf", R_OK))	}
4032
4033		if (read(fd, bootSect, 512) != 512) {
4034		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4035		device, strerror(errno));
4036		return 1;
4037		}
4038		close(fd);
4039
4040		/* first three bytes should match, a jmp short should be in there */
4041		if (memcmp(boot, bootSect, 3))
4042		return 0;
4043
4044		if (boot[1] == JMP_SHORT_OPCODE) {
4045		offset = boot[2] + 2;
4046		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4047		offset = (boot[3] << 8) + boot[2] + 2;
4048		} else if (boot[0] == JMP_SHORT_OPCODE) {
4049		offset = boot[1] + 2;
4050		/*
4051		* it looks like grub, when copying stage1 into the mbr,
4052		* patches stage1 right after the JMP location, replacing
4053		* other instructions such as JMPs for NOOPs. So, relax the
4054		* check a little bit by skipping those different bytes.
4055		*/
4056		if ((bootSect[offset + 1] == NOOP_OPCODE)
4057		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4058		offset = offset + 3;
4059		}
4060		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4061		offset = (boot[2] << 8) + boot[1] + 2;
4062		} else {
4063		return 0;
4064		}
4065
4066		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4067		return 0;
4068
4069	return 2;	return 2;
4070		}
4071
4072	return 1;	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4073		{
4074		int fd;
4075		char buf[65536];
4076		char *end;
4077		char *chptr;
4078		char *chptr2;
4079		int rc;
4080
4081		/* it's on raid; we need to parse /proc/mdstat and check all of the
4082		*raw* devices listed in there */
4083
4084		if (!strncmp(mdDev, "/dev/", 5))
4085		mdDev += 5;
4086
4087		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4088		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4089		strerror(errno));
4090		return 2;
4091		}
4092
4093		rc = read(fd, buf, sizeof(buf) - 1);
4094		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4095		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4096		strerror(errno));
4097		close(fd);
4098		return 2;
4099		}
4100		close(fd);
4101		buf[rc] = '\0';
4102
4103		chptr = buf;
4104		while (*chptr) {
4105		end = strchr(chptr, '\n');
4106		if (!end)
4107		break;
4108		*end = '\0';
4109
4110		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4111		chptr[strlen(mdDev)] == ' ') {
4112
4113		/* found the device */
4114		while (*chptr && *chptr != ':')
4115		chptr++;
4116		chptr++;
4117		while (*chptr && isspace(*chptr))
4118		chptr++;
4119
4120		/* skip the "active" bit */
4121		while (*chptr && !isspace(*chptr))
4122		chptr++;
4123		while (*chptr && isspace(*chptr))
4124		chptr++;
4125
4126		/* skip the raid level */
4127		while (*chptr && !isspace(*chptr))
4128		chptr++;
4129		while (*chptr && isspace(*chptr))
4130		chptr++;
4131
4132		/* everything else is partition stuff */
4133		while (*chptr) {
4134		chptr2 = chptr;
4135		while (*chptr2 && *chptr2 != '[')
4136		chptr2++;
4137		if (!*chptr2)
4138		break;
4139
4140		/* yank off the numbers at the end */
4141		chptr2--;
4142		while (isdigit(*chptr2) && chptr2 > chptr)
4143		chptr2--;
4144		chptr2++;
4145		*chptr2 = '\0';
4146
4147		/* Better, now we need the /dev/ back. We're
4148		* done with everything before this point, so
4149		* we can just put the /dev/ part there.
4150		* There will always be room. */
4151		memcpy(chptr - 5, "/dev/", 5);
4152		rc = checkDeviceBootloader(chptr - 5, boot);
4153		if (rc != 2) {
4154		return rc;
4155		}
4156
4157		chptr = chptr2 + 1;
4158		/* skip the [11] bit */
4159		while (*chptr && !isspace(*chptr))
4160		chptr++;
4161		/* and move to the next one */
4162		while (*chptr && isspace(*chptr))
4163		chptr++;
4164		}
4165
4166		/*  we're good to go */
4167		return 2;
4168		}
4169
4170		chptr = end + 1;
4171		}
4172
4173		fprintf(stderr,
4174		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4175		mdDev);
4176		return 0;
4177	}	}
4178
4179	int checkForElilo(struct grubConfig * config) {	int checkForLilo(struct grubConfig *config)
4180	if (!access("/etc/elilo.conf", R_OK))	{
4181	return 2;	int fd;
4182		unsigned char boot[512];
4183		struct singleLine *line;
4184
4185	return 1;	for (line = config->theLines; line; line = line->next)
4186		if (line->type == LT_BOOT)
4187		break;
4188
4189		if (!line) {
4190		fprintf(stderr,
4191		_
4192		("grubby: no boot line found in lilo configuration\n"));
4193		return 1;
4194		}
4195
4196		if (line->numElements != 2)
4197		return 1;
4198
4199		fd = open("/boot/boot.b", O_RDONLY);
4200		if (fd < 0) {
4201		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4202		"/boot/boot.b", strerror(errno));
4203		return 1;
4204		}
4205
4206		if (read(fd, boot, 512) != 512) {
4207		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4208		"/boot/boot.b", strerror(errno));
4209		return 1;
4210		}
4211		close(fd);
4212
4213		if (!strncmp("/dev/md", line->elements[1].item, 7))
4214		return checkLiloOnRaid(line->elements[1].item, boot);
4215
4216		return checkDeviceBootloader(line->elements[1].item, boot);
4217	}	}
4218
4219	static char * getRootSpecifier(char * str) {	int checkForGrub2(struct grubConfig *config)
4220	char * idx, * rootspec = NULL;	{
4221		if (!access("/etc/grub.d/", R_OK))
4222		return 2;
4223
4224	if (*str == '(') {	return 1;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
4225	}	}
4226
4227	static char * getInitrdVal(struct grubConfig * config,	int checkForGrub(struct grubConfig *config)
4228	const char * prefix, struct singleLine *tmplLine,	{
4229	const char * newKernelInitrd,	int fd;
4230	const char ** extraInitrds, int extraInitrdCount)	unsigned char bootSect[512];
4231	{	char *boot;
4232	char *initrdVal, *end;	int onSuse = isSuseSystem();
4233	int i;
4234	size_t totalSize;	if (onSuse) {
4235	size_t prefixLen;	if (parseSuseGrubConf(NULL, &boot))
4236	char separatorChar;	return 0;
4237		} else {
4238	prefixLen = strlen(prefix);	if (parseSysconfigGrub(NULL, &boot))
4239	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	return 0;
4240		}
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4241
4242	initrdVal = end = malloc(totalSize);	/* assume grub is not installed -- not an error condition */
4243		if (!boot)
4244		return 0;
4245
4246	end = stpcpy (end, newKernelInitrd + prefixLen);	fd = open("/boot/grub/stage1", O_RDONLY);
4247		if (fd < 0)
4248		/* this doesn't exist if grub hasn't been installed */
4249		return 0;
4250
4251	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	if (read(fd, bootSect, 512) != 512) {
4252	for (i = 0; i < extraInitrdCount; i++) {	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4253	const char *extraInitrd;	"/boot/grub/stage1", strerror(errno));
4254	int j;	close(fd);
4255		return 1;
4256		}
4257		close(fd);
4258
4259		/* The more elaborate checks do not work on SuSE. The checks done
4260		* seem to be reasonble (at least for now), so just return success
4261		*/
4262		if (onSuse)
4263		return 2;
4264
4265		return checkDeviceBootloader(boot, bootSect);
4266		}
4267
4268		int checkForExtLinux(struct grubConfig *config)
4269		{
4270		int fd;
4271		unsigned char bootSect[512];
4272		char *boot;
4273		char executable[] = "/boot/extlinux/extlinux";
4274
4275		printf("entered: checkForExtLinux()\n");
4276
4277		if (parseSysconfigGrub(NULL, &boot))
4278		return 0;
4279
4280		/* assume grub is not installed -- not an error condition */
4281		if (!boot)
4282		return 0;
4283
4284	extraInitrd = extraInitrds[i] + prefixLen;	fd = open(executable, O_RDONLY);
4285	/* Don't add entries that are already there */	if (fd < 0)
4286	if (tmplLine != NULL) {	/* this doesn't exist if grub hasn't been installed */
4287	for (j = 2; j < tmplLine->numElements; j++)	return 0;
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4288
4289	if (j != tmplLine->numElements)	if (read(fd, bootSect, 512) != 512) {
4290	continue;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4291		executable, strerror(errno));
4292		return 1;
4293	}	}
4294		close(fd);
4295
4296	*end++ = separatorChar;	return checkDeviceBootloader(boot, bootSect);
4297	end = stpcpy(end, extraInitrd);	}
4298	}
4299		int checkForYaboot(struct grubConfig *config)
4300		{
4301		/*
4302		* This is a simplistic check that we consider good enough for own puporses
4303		*
4304		* If we were to properly check if yaboot is *installed* we'd need to:
4305		* 1) get the system boot device (LT_BOOT)
4306		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4307		*    the content on the boot device
4308		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4309		* 4) check again if binary and boot device contents match
4310		*/
4311		if (!access("/etc/yaboot.conf", R_OK))
4312		return 2;
4313
4314	return initrdVal;	return 1;
4315	}	}
4316
4317	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int checkForElilo(struct grubConfig *config)
4318	const char * prefix,	{
4319	const char * newKernelPath, const char * newKernelTitle,	if (!access("/etc/elilo.conf", R_OK))
4320	const char * newKernelArgs, const char * newKernelInitrd,	return 2;
4321	const char ** extraInitrds, int extraInitrdCount,
4322	const char * newMBKernel, const char * newMBKernelArgs) {	return 1;
4323	struct singleEntry * new;	}
4324	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
4325	int needs;	static size_t getRootSpecifier(const char *str)
4326	char * chptr;	{
4327		size_t rs = 0;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
4328
4329	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (*str == '(') {
4330	while (findEntryByPath(config, buf, NULL, NULL)) {	for (; str[rs] != ')' && !isspace(str[rs]); rs++) {
4331	sprintf(numBuf, "%d", i++);	if (!str[rs])
4332	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	return rs;
4333		}
4334		rs++;
4335	}	}
4336
4337	newKernelTitle = buf + 6;	return rs;
4338	}	}
4339
4340	new = malloc(sizeof(*new));	static char *getInitrdVal(struct grubConfig *config,
4341	new->skip = 0;	const char *prefix, struct singleLine *tmplLine,
4342	new->multiboot = 0;	const char *newKernelInitrd,
4343	new->next = config->entries;	const char **extraInitrds, int extraInitrdCount)
4344	new->lines = NULL;	{
4345	config->entries = new;	char *initrdVal, *end;
4346		int i;
4347	/* copy/update from the template */	size_t totalSize;
4348	needs = NEED_KERNEL | NEED_TITLE;	size_t prefixLen;
4349	if (newKernelInitrd)	char separatorChar;
4350	needs |= NEED_INITRD;
4351	if (newMBKernel) {	prefixLen = strlen(prefix);
4352	needs |= NEED_MB;	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4353	new->multiboot = 1;
4354	}	for (i = 0; i < extraInitrdCount; i++) {
4355		totalSize += sizeof(separatorChar);
4356		totalSize += strlen(extraInitrds[i]) - prefixLen;
4357		}
4358
4359		initrdVal = end = malloc(totalSize);
4360
4361		end = stpcpy(end, newKernelInitrd + prefixLen);
4362
4363		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4364		for (i = 0; i < extraInitrdCount; i++) {
4365		const char *extraInitrd;
4366		int j;
4367
4368		extraInitrd = extraInitrds[i] + prefixLen;
4369		/* Don't add entries that are already there */
4370		if (tmplLine != NULL) {
4371		for (j = 2; j < tmplLine->numElements; j++)
4372		if (strcmp
4373		(extraInitrd,
4374		tmplLine->elements[j].item) == 0)
4375		break;
4376
4377	if (template) {	if (j != tmplLine->numElements)
4378	for (masterLine = template->lines;	continue;
4379	masterLine && (tmplLine = lineDup(masterLine));	}
4380	lineFree(tmplLine), masterLine = masterLine->next)
4381	{	*end++ = separatorChar;
4382	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	end = stpcpy(end, extraInitrd);
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = preferredLineType(LT_KERNEL, config->cfi);
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(tmplLine->type,
	config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix),
	config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = preferredLineType(LT_INITRD, config->cfi);
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(tmplLine->type,
	config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (isinitrd(tmplLine->type) && tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next &&
	iskernel(masterLine->next->type)) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
4383	}	}
4384
4385	} else {	return initrdVal;
4386	/* don't have a template, so start the entry with the	}
4387	* appropriate starting line
4388	*/	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4389	switch (config->cfi->entryStart) {	const char *prefix,
4390	case LT_KERNEL:	const char *newKernelPath, const char *newKernelTitle,
4391	case LT_KERNEL_EFI:	const char *newKernelArgs, const char *newKernelInitrd,
4392	if (new->multiboot && config->cfi->mbHyperFirst) {	const char **extraInitrds, int extraInitrdCount,
4393	/* fall through to LT_HYPER */	const char *newMBKernel, const char *newMBKernelArgs,
4394	} else {	const char *newDevTreePath, int newIndex)
4395	newLine = addLine(new, config->cfi,	{
4396	preferredLineType(LT_KERNEL, config->cfi),	struct singleEntry *new, *entry, *prev = NULL;
4397	config->primaryIndent,	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4398	newKernelPath + strlen(prefix));	int needs;
4399	needs &= ~NEED_KERNEL;	char *indexs;
4400	break;	char *chptr;
4401		int rc;
4402
4403		if (!newKernelPath)
4404		return 0;
4405
4406		rc = asprintf(&indexs, "%d", newIndex);
4407		if (rc < 0)
4408		return 1;
4409
4410		/* if the newKernelTitle is too long silently munge it into something
4411		* we can live with. truncating is first check, then we'll just mess with
4412		* it until it looks better */
4413		if (config->cfi->maxTitleLength &&
4414		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4415		char *buf = alloca(config->cfi->maxTitleLength + 7);
4416		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4417		int i = 1;
4418
4419		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4420		newKernelTitle);
4421		while (findEntryByPath(config, buf, NULL, NULL)) {
4422		sprintf(numBuf, "%d", i++);
4423		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4424	}	}
4425
4426	case LT_HYPER:	newKernelTitle = buf + 6;
4427	newLine = addLine(new, config->cfi, LT_HYPER,	}
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
4428
4429	case LT_MENUENTRY: {	new = malloc(sizeof(*new));
4430	char *nkt = malloc(strlen(newKernelTitle)+3);	new->skip = 0;
4431	strcpy(nkt, "'");	new->multiboot = 0;
4432	strcat(nkt, newKernelTitle);	new->lines = NULL;
4433	strcat(nkt, "'");	entry = config->entries;
4434	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (unsigned int i = 0; i < newIndex; i++) {
4435	config->primaryIndent, nkt);	if (!entry)
4436	free(nkt);	break;
4437	needs &= ~NEED_TITLE;	prev = entry;
4438	needs |= NEED_END;	entry = entry->next;
4439	break;	}
4440	}	new->next = entry;
4441	case LT_TITLE:
4442	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	if (prev)
4443	char * templabel;	prev->next = new;
4444	int x = 0, y = 0;	else
4445		config->entries = new;
4446	templabel = strdup(newKernelTitle);
4447	while( templabel[x]){	/* copy/update from the template */
4448	if( templabel[x] == ' ' ){	needs = NEED_KERNEL | NEED_TITLE;
4449	y = x;	if (newKernelInitrd)
4450	while( templabel[y] ){	needs |= NEED_INITRD;
4451	templabel[y] = templabel[y+1];	if (newMBKernel) {
4452	y++;	needs |= NEED_MB;
4453		new->multiboot = 1;
4454		}
4455		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4456		needs |= NEED_DEVTREE;
4457
4458		if (template) {
4459		for (masterLine = template->lines;
4460		masterLine && (tmplLine = lineDup(masterLine));
4461		lineFree(tmplLine), masterLine = masterLine->next) {
4462		dbgPrintf("addNewKernel processing %d\n",
4463		tmplLine->type);
4464
4465		/* skip comments */
4466		chptr = tmplLine->indent;
4467		while (*chptr && isspace(*chptr))
4468		chptr++;
4469		if (*chptr == '#')
4470		continue;
4471
4472		if (iskernel(tmplLine->type)
4473		&& tmplLine->numElements >= 2) {
4474		if (!template->multiboot && (needs & NEED_MB)) {
4475		/* it's not a multiboot template and
4476		* this is the kernel line.  Try to
4477		* be intelligent about inserting the
4478		* hypervisor at the same time.
4479		*/
4480		if (config->cfi->mbHyperFirst) {
4481		/* insert the hypervisor first */
4482		newLine =
4483		addLine(new, config->cfi,
4484		LT_HYPER,
4485		tmplLine->indent,
4486		newMBKernel +
4487		strlen(prefix));
4488		/* set up for adding the
4489		* kernel line */
4490		free(tmplLine->indent);
4491		tmplLine->indent =
4492		strdup(config->
4493		secondaryIndent);
4494		needs &= ~NEED_MB;
4495		}
4496		if (needs & NEED_KERNEL) {
4497		/* use addLineTmpl to
4498		* preserve line elements,
4499		* otherwise we could just
4500		* call addLine.
4501		* Unfortunately this means
4502		* making some changes to the
4503		* template such as the
4504		* indent change above and
4505		* the type change below.
4506		*/
4507		struct keywordTypes *mbm_kw =
4508		getKeywordByType
4509		(LT_MBMODULE, config->cfi);
4510		if (mbm_kw) {
4511		tmplLine->type =
4512		LT_MBMODULE;
4513		free(tmplLine->
4514		elements[0].item);
4515		tmplLine->elements[0].
4516		item =
4517		strdup(mbm_kw->key);
4518		}
4519		newLine =
4520		addLineTmpl(new, tmplLine,
4521		newLine,
4522		newKernelPath +
4523		strlen(prefix),
4524		config->cfi);
4525		needs &= ~NEED_KERNEL;
4526		}
4527		if (needs & NEED_MB) { /* !mbHyperFirst */
4528		newLine =
4529		addLine(new, config->cfi,
4530		LT_HYPER,
4531		config->
4532		secondaryIndent,
4533		newMBKernel +
4534		strlen(prefix));
4535		needs &= ~NEED_MB;
4536		}
4537		} else if (needs & NEED_KERNEL) {
4538		newLine =
4539		addLineTmpl(new, tmplLine, newLine,
4540		newKernelPath +
4541		strlen(prefix),
4542		config->cfi);
4543		needs &= ~NEED_KERNEL;
4544		}
4545
4546		} else if (tmplLine->type == LT_HYPER &&
4547		tmplLine->numElements >= 2) {
4548		if (needs & NEED_MB) {
4549		newLine =
4550		addLineTmpl(new, tmplLine, newLine,
4551		newMBKernel +
4552		strlen(prefix),
4553		config->cfi);
4554		needs &= ~NEED_MB;
4555		}
4556
4557		} else if (tmplLine->type == LT_MBMODULE &&
4558		tmplLine->numElements >= 2) {
4559		if (new->multiboot) {
4560		if (needs & NEED_KERNEL) {
4561		newLine =
4562		addLineTmpl(new, tmplLine,
4563		newLine,
4564		newKernelPath +
4565		strlen(prefix),
4566		config->cfi);
4567		needs &= ~NEED_KERNEL;
4568		} else if (config->cfi->mbInitRdIsModule
4569		&& (needs & NEED_INITRD)) {
4570		char *initrdVal;
4571		initrdVal =
4572		getInitrdVal(config, prefix,
4573		tmplLine,
4574		newKernelInitrd,
4575		extraInitrds,
4576		extraInitrdCount);
4577		newLine =
4578		addLineTmpl(new, tmplLine,
4579		newLine,
4580		initrdVal,
4581		config->cfi);
4582		free(initrdVal);
4583		needs &= ~NEED_INITRD;
4584		}
4585		} else if (needs & NEED_KERNEL) {
4586		/* template is multi but new is not,
4587		* insert the kernel in the first
4588		* module slot
4589		*/
4590		tmplLine->type =
4591		preferredLineType(LT_KERNEL,
4592		config->cfi);
4593		free(tmplLine->elements[0].item);
4594		tmplLine->elements[0].item =
4595		strdup(getKeywordByType
4596		(tmplLine->type,
4597		config->cfi)->key);
4598		newLine =
4599		addLineTmpl(new, tmplLine, newLine,
4600		newKernelPath +
4601		strlen(prefix),
4602		config->cfi);
4603		needs &= ~NEED_KERNEL;
4604		} else if (needs & NEED_INITRD) {
4605		char *initrdVal;
4606		/* template is multi but new is not,
4607		* insert the initrd in the second
4608		* module slot
4609		*/
4610		tmplLine->type =
4611		preferredLineType(LT_INITRD,
4612		config->cfi);
4613		free(tmplLine->elements[0].item);
4614		tmplLine->elements[0].item =
4615		strdup(getKeywordByType
4616		(tmplLine->type,
4617		config->cfi)->key);
4618		initrdVal =
4619		getInitrdVal(config, prefix,
4620		tmplLine,
4621		newKernelInitrd,
4622		extraInitrds,
4623		extraInitrdCount);
4624		newLine =
4625		addLineTmpl(new, tmplLine, newLine,
4626		initrdVal, config->cfi);
4627		free(initrdVal);
4628		needs &= ~NEED_INITRD;
4629		}
4630
4631		} else if (isinitrd(tmplLine->type)
4632		&& tmplLine->numElements >= 2) {
4633		if (needs & NEED_INITRD && new->multiboot
4634		&& !template->multiboot
4635		&& config->cfi->mbInitRdIsModule) {
4636		/* make sure we don't insert the
4637		* module initrd before the module
4638		* kernel... if we don't do it here,
4639		* it will be inserted following the
4640		* template.
4641		*/
4642		if (!needs & NEED_KERNEL) {
4643		char *initrdVal;
4644
4645		initrdVal =
4646		getInitrdVal(config, prefix,
4647		tmplLine,
4648		newKernelInitrd,
4649		extraInitrds,
4650		extraInitrdCount);
4651		newLine =
4652		addLine(new, config->cfi,
4653		LT_MBMODULE,
4654		config->
4655		secondaryIndent,
4656		initrdVal);
4657		free(initrdVal);
4658		needs &= ~NEED_INITRD;
4659	}	}
4660		} else if (needs & NEED_INITRD) {
4661		char *initrdVal;
4662		initrdVal =
4663		getInitrdVal(config, prefix,
4664		tmplLine,
4665		newKernelInitrd,
4666		extraInitrds,
4667		extraInitrdCount);
4668		newLine =
4669		addLineTmpl(new, tmplLine, newLine,
4670		initrdVal, config->cfi);
4671		free(initrdVal);
4672		needs &= ~NEED_INITRD;
4673		}
4674
4675		} else if (tmplLine->type == LT_MENUENTRY &&
4676		(needs & NEED_TITLE)) {
4677		requote(tmplLine, config->cfi);
4678		char *nkt = malloc(strlen(newKernelTitle) + 3);
4679		strcpy(nkt, "'");
4680		strcat(nkt, newKernelTitle);
4681		strcat(nkt, "'");
4682		newLine =
4683		addLineTmpl(new, tmplLine, newLine, nkt,
4684		config->cfi);
4685		free(nkt);
4686		needs &= ~NEED_TITLE;
4687		} else if (tmplLine->type == LT_TITLE &&
4688		(needs & NEED_TITLE)) {
4689		if (tmplLine->numElements >= 2) {
4690		newLine =
4691		addLineTmpl(new, tmplLine, newLine,
4692		newKernelTitle,
4693		config->cfi);
4694		needs &= ~NEED_TITLE;
4695		} else if (tmplLine->numElements == 1 &&
4696		config->cfi->titleBracketed) {
4697		/* addLineTmpl doesn't handle
4698		* titleBracketed */
4699		newLine =
4700		addLine(new, config->cfi, LT_TITLE,
4701		tmplLine->indent,
4702		newKernelTitle);
4703		needs &= ~NEED_TITLE;
4704	}	}
4705	x++;	} else if (tmplLine->type == LT_ECHO) {
4706		requote(tmplLine, config->cfi);
4707		static const char *prefix = "'Loading ";
4708		if (tmplLine->numElements > 1 &&
4709		strstr(tmplLine->elements[1].item, prefix)
4710		&& masterLine->next
4711		&& iskernel(masterLine->next->type)) {
4712		char *newTitle =
4713		malloc(strlen(prefix) +
4714		strlen(newKernelTitle) + 2);
4715
4716		strcpy(newTitle, prefix);
4717		strcat(newTitle, newKernelTitle);
4718		strcat(newTitle, "'");
4719		newLine =
4720		addLine(new, config->cfi, LT_ECHO,
4721		tmplLine->indent, newTitle);
4722		free(newTitle);
4723		} else {
4724		/* pass through other lines from the
4725		* template */
4726		newLine =
4727		addLineTmpl(new, tmplLine, newLine,
4728		NULL, config->cfi);
4729		}
4730		} else if (tmplLine->type == LT_DEVTREE &&
4731		tmplLine->numElements == 2
4732		&& newDevTreePath) {
4733		newLine =
4734		addLineTmpl(new, tmplLine, newLine,
4735		newDevTreePath + strlen(prefix),
4736		config->cfi);
4737		needs &= ~NEED_DEVTREE;
4738		} else if (tmplLine->type == LT_ENTRY_END
4739		&& needs & NEED_DEVTREE) {
4740		const char *ndtp = newDevTreePath;
4741		if (!strncmp
4742		(newDevTreePath, prefix, strlen(prefix)))
4743		ndtp += strlen(prefix);
4744		newLine = addLine(new, config->cfi, LT_DEVTREE,
4745		config->secondaryIndent,
4746		ndtp);
4747		needs &= ~NEED_DEVTREE;
4748		newLine =
4749		addLineTmpl(new, tmplLine, newLine, NULL,
4750		config->cfi);
4751		} else {
4752		/* pass through other lines from the template */
4753		newLine =
4754		addLineTmpl(new, tmplLine, newLine, NULL,
4755		config->cfi);
4756	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
4757	}	}
	needs &= ~NEED_TITLE;
	break;
4758
4759	default:	} else {
4760	abort();	/* don't have a template, so start the entry with the
4761		* appropriate starting line
4762		*/
4763		switch (config->cfi->entryStart) {
4764		case LT_KERNEL:
4765		case LT_KERNEL_EFI:
4766		case LT_KERNEL_16:
4767		if (new->multiboot && config->cfi->mbHyperFirst) {
4768		/* fall through to LT_HYPER */
4769		} else {
4770		newLine = addLine(new, config->cfi,
4771		preferredLineType(LT_KERNEL,
4772		config->
4773		cfi),
4774		config->primaryIndent,
4775		newKernelPath +
4776		strlen(prefix));
4777		needs &= ~NEED_KERNEL;
4778		break;
4779		}
4780
4781		case LT_HYPER:
4782		newLine = addLine(new, config->cfi, LT_HYPER,
4783		config->primaryIndent,
4784		newMBKernel + strlen(prefix));
4785		needs &= ~NEED_MB;
4786		break;
4787
4788		case LT_MENUENTRY:{
4789		char *nkt = malloc(strlen(newKernelTitle) + 3);
4790		strcpy(nkt, "'");
4791		strcat(nkt, newKernelTitle);
4792		strcat(nkt, "'");
4793		newLine =
4794		addLine(new, config->cfi, LT_MENUENTRY,
4795		config->primaryIndent, nkt);
4796		free(nkt);
4797		needs &= ~NEED_TITLE;
4798		needs |= NEED_END;
4799		break;
4800		}
4801		case LT_TITLE:
4802		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4803		char *templabel;
4804		int x = 0, y = 0;
4805
4806		templabel = strdup(newKernelTitle);
4807		while (templabel[x]) {
4808		if (templabel[x] == ' ') {
4809		y = x;
4810		while (templabel[y]) {
4811		templabel[y] =
4812		templabel[y + 1];
4813		y++;
4814		}
4815		}
4816		x++;
4817		}
4818		newLine = addLine(new, config->cfi, LT_TITLE,
4819		config->primaryIndent,
4820		templabel);
4821		free(templabel);
4822		} else {
4823		newLine = addLine(new, config->cfi, LT_TITLE,
4824		config->primaryIndent,
4825		newKernelTitle);
4826		}
4827		needs &= ~NEED_TITLE;
4828		break;
4829
4830		default:
4831		abort();
4832		}
4833	}	}
	}
4834
4835	/* add the remainder of the lines, i.e. those that either	struct singleLine *endLine = NULL;
4836	* weren't present in the template, or in the case of no template,	endLine = getLineByType(LT_ENTRY_END, new->lines);
4837	* all the lines following the entryStart.	if (endLine) {
4838	*/	removeLine(new, endLine);
4839	if (needs & NEED_TITLE) {	needs |= NEED_END;
4840	newLine = addLine(new, config->cfi, LT_TITLE,	}
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi))
	? LT_MBMODULE
	: preferredLineType(LT_KERNEL, config->cfi),
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi))
	? LT_MBMODULE
	: preferredLineType(LT_INITRD, config->cfi),
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
4841
4842	if (needs) {	/* add the remainder of the lines, i.e. those that either
4843	printf(_("grubby: needs=%d, aborting\n"), needs);	* weren't present in the template, or in the case of no template,
4844	abort();	* all the lines following the entryStart.
4845	}	*/
4846		if (needs & NEED_TITLE) {
4847		newLine = addLine(new, config->cfi, LT_TITLE,
4848		config->secondaryIndent, newKernelTitle);
4849		needs &= ~NEED_TITLE;
4850		}
4851		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4852		newLine = addLine(new, config->cfi, LT_HYPER,
4853		config->secondaryIndent,
4854		newMBKernel + strlen(prefix));
4855		needs &= ~NEED_MB;
4856		}
4857		if (needs & NEED_KERNEL) {
4858		newLine = addLine(new, config->cfi,
4859		(new->multiboot
4860		&& getKeywordByType(LT_MBMODULE,
4861		config->cfi))
4862		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4863		config->
4864		cfi),
4865		config->secondaryIndent,
4866		newKernelPath + strlen(prefix));
4867		needs &= ~NEED_KERNEL;
4868		}
4869		if (needs & NEED_MB) {
4870		newLine = addLine(new, config->cfi, LT_HYPER,
4871		config->secondaryIndent,
4872		newMBKernel + strlen(prefix));
4873		needs &= ~NEED_MB;
4874		}
4875		if (needs & NEED_INITRD) {
4876		char *initrdVal;
4877		initrdVal =
4878		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4879		extraInitrds, extraInitrdCount);
4880		newLine =
4881		addLine(new, config->cfi,
4882		(new->multiboot
4883		&& getKeywordByType(LT_MBMODULE, config->cfi))
4884		? LT_MBMODULE : preferredLineType(LT_INITRD,
4885		config->cfi),
4886		config->secondaryIndent, initrdVal);
4887		free(initrdVal);
4888		needs &= ~NEED_INITRD;
4889		}
4890		if (needs & NEED_DEVTREE) {
4891		newLine = addLine(new, config->cfi, LT_DEVTREE,
4892		config->secondaryIndent, newDevTreePath);
4893		needs &= ~NEED_DEVTREE;
4894		}
4895
4896		/* NEEDS_END must be last on bootloaders that need it... */
4897		if (needs & NEED_END) {
4898		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4899		config->secondaryIndent, NULL);
4900		needs &= ~NEED_END;
4901		}
4902
4903	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (needs) {
4904	newMBKernelArgs, NULL)) return 1;	printf(_("grubby: needs=%d, aborting\n"), needs);
4905		abort();
4906		}
4907
4908	return 0;	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4909		newMBKernelArgs, NULL)) {
4910		config->isModified = 1;
4911		return 1;
4912		}
4913
4914		return 0;
4915	}	}
4916
4917	static void traceback(int signum)	int main(int argc, const char **argv)
4918	{	{
4919	void *array[40];	poptContext optCon;
4920	size_t size;	const char *grubConfig = NULL;
4921		char *outputFile = NULL;
4922	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4923	memset(array, '\0', sizeof (array));	int flags = 0;
4924	size = backtrace(array, 40);	int badImageOkay = 0;
4925		int configureGrub2 = 0;
4926	fprintf(stderr, "grubby received SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4927	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4928	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4929	exit(1);	int bootloaderProbe = 0;
4930	}	int extraInitrdCount = 0;
4931		char *updateKernelPath = NULL;
4932	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4933	poptContext optCon;	char *removeKernelPath = NULL;
4934	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4935	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4936	int arg = 0;	char *newKernelTitle = NULL;
4937	int flags = 0;	char *newDevTreePath = NULL;
4938	int badImageOkay = 0;	char *newMBKernel = NULL;
4939	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4940	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4941	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4942	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4943	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4944	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4945	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4946	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4947	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4948	char * newKernelArgs = NULL;	char *envPath = NULL;
4949	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4950	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4951	char * newKernelVersion = NULL;	struct grubConfig *config;
4952	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4953	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4954	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4955	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4956	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4957	char * defaultKernel = NULL;	int defaultIndex = -1;
4958	char * removeArgs = NULL;	struct poptOption options[] = {
4959	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4960	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4961	char * envPath = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4962	const char * chptr = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4963	struct configFileInfo * cfi = NULL;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4964	struct grubConfig * config;	_("default arguments for the new kernel or new arguments for "
4965	struct singleEntry * template = NULL;	"kernel being updated"), _("args")},
4966	int copyDefault = 0, makeDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4967	int displayDefault = 0;	_("default arguments for the new multiboot kernel or "
4968	int displayDefaultIndex = 0;	"new arguments for multiboot kernel being updated"), NULL},
4969	int displayDefaultTitle = 0;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4970	int defaultIndex = -1;	_
4971	struct poptOption options[] = {	("don't sanity check images in boot entries (for testing only)"),
4972	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	NULL},
4973	_("add an entry for the specified kernel"), _("kernel-path") },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4974	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	_
4975	_("add an entry for the specified multiboot kernel"), NULL },	("filesystem which contains /boot directory (for testing only)"),
4976	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	_("bootfs")},
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
4977	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4978	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4979	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4980	#endif	#endif
4981	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4982	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4983	_("path") },	_("path")},
4984	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4985	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4986	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4987	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4988	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4989	"template"), NULL },	"template"), NULL},
4990	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4991	_("print debugging information for failures") },	_("print debugging information for failures")},
4992	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4993	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4994	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4995	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4996	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4997	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4998	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4999	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
5000	{ "efi", 0, POPT_ARG_NONE, &isEfi, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5001	_("force grub2 stanzas to use efi") },	_("device tree directory for new stanza"), _("dtb-path")},
5002	{ "env", 0, POPT_ARG_STRING, &envPath, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
5003	_("path for environment data"),	_("configure elilo bootloader")},
5004	_("path") },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
5005	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	_("force grub2 stanzas to use efi")},
5006	_("configure extlinux bootloader (from syslinux)") },	{"env", 0, POPT_ARG_STRING, &envPath, 0,
5007	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	_("path for environment data"),
5008	_("configure grub bootloader") },	_("path")},
5009	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
5010	_("configure grub2 bootloader") },	_("configure extlinux bootloader (from syslinux)")},
5011	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
5012	_("display boot information for specified kernel"),	_("configure grub bootloader")},
5013	_("kernel-path") },	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
5014	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("configure grub2 bootloader")},
5015	_("initrd image for the new kernel"), _("initrd-path") },	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
5016	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	_("display boot information for specified kernel"),
5017	_("auxiliary initrd image for things other than the new kernel"), _("initrd-path") },	_("kernel-path")},
5018	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
5019	_("configure lilo bootloader") },	_("initrd image for the new kernel"), _("initrd-path")},
5020	{ "make-default", 0, 0, &makeDefault, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
5021	_("make the newly added entry the default boot entry"), NULL },	_
5022	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	("auxiliary initrd image for things other than the new kernel"),
5023	_("path to output updated config file (\"-\" for stdout)"),	_("initrd-path")},
5024	_("path") },	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
5025	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("configure lilo bootloader")},
5026	_("remove kernel arguments"), NULL },	{"make-default", 0, 0, &makeDefault, 0,
5027	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("make the newly added entry the default boot entry"), NULL},
5028	_("remove multiboot kernel arguments"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
5029	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("path to output updated config file (\"-\" for stdout)"),
5030	_("remove all entries for the specified kernel"),	_("path")},
5031	_("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
5032	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("remove kernel arguments"), NULL},
5033	_("remove all entries for the specified multiboot kernel"), NULL },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
5034	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("remove multiboot kernel arguments"), NULL},
5035	_("make the first entry referencing the specified kernel "	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
5036	"the default"), _("kernel-path") },	_("remove all entries for the specified kernel"),
5037	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("kernel-path")},
5038	_("make the given entry index the default entry"),	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
5039	_("entry-index") },	_("remove all entries for the specified multiboot kernel"),
5040	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	NULL},
5041	_("configure silo bootloader") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
5042	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("make the first entry referencing the specified kernel "
5043	_("title to use for the new kernel entry"), _("entry-title") },	"the default"), _("kernel-path")},
5044	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5045	_("updated information for the specified kernel"),	_("make the given entry index the default entry"),
5046	_("kernel-path") },	_("entry-index")},
5047	{ "version", 'v', 0, NULL, 'v',	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5048	_("print the version of this program and exit"), NULL },	_("use the given index when creating a new entry"),
5049	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("entry-index")},
5050	_("configure yaboot bootloader") },	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5051	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("configure silo bootloader")},
5052	_("configure zipl bootloader") },	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5053	POPT_AUTOHELP	_("title to use for the new kernel entry"), _("entry-title")},
5054	{ 0, 0, 0, 0, 0 }	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5055	};	_("updated information for the specified kernel"),
5056		_("kernel-path")},
5057	useextlinuxmenu=0;	{"version", 'v', 0, NULL, 'v',
5058		_("print the version of this program and exit"), NULL},
5059	signal(SIGSEGV, traceback);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5060		_("configure yaboot bootloader")},
5061	int i = 0;	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5062	for (int j = 1; j < argc; j++)	_("configure zipl bootloader")},
5063	i += strlen(argv[j]) + 1;	POPT_AUTOHELP {0, 0, 0, 0, 0}
5064	saved_command_line = malloc(i);	};
5065	if (!saved_command_line) {
5066	fprintf(stderr, "grubby: %m\n");	useextlinuxmenu = 0;
5067	exit(1);
5068	}	int i = 0;
5069	saved_command_line[0] = '\0';	for (int j = 1; j < argc; j++)
5070	for (int j = 1; j < argc; j++) {	i += strlen(argv[j]) + 1;
5071	strcat(saved_command_line, argv[j]);	saved_command_line = malloc(i);
5072	strncat(saved_command_line, j == argc -1 ? "" : " ", 1);	if (!saved_command_line) {
5073	}	fprintf(stderr, "grubby: %m\n");
5074		exit(1);
5075	optCon = poptGetContext("grubby", argc, argv, options, 0);	}
5076	poptReadDefaultConfig(optCon, 1);	saved_command_line[0] = '\0';
5077		for (int j = 1; j < argc; j++) {
5078		strcat(saved_command_line, argv[j]);
5079		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5080		}
5081
5082		optCon = poptGetContext("grubby", argc, argv, options, 0);
5083		poptReadDefaultConfig(optCon, 1);
5084
5085		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5086		switch (arg) {
5087		case 'v':
5088		printf("grubby version %s\n", VERSION);
5089		exit(0);
5090		break;
5091		case 'i':
5092		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5093		extraInitrds[extraInitrdCount++] =
5094		strdup(poptGetOptArg(optCon));
5095		} else {
5096		fprintf(stderr,
5097		_
5098		("grubby: extra initrd maximum is %d\n"),
5099		extraInitrdCount);
5100		return 1;
5101		}
5102		break;
5103		}
5104		}
5105
5106	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (arg < -1) {
5107	switch (arg) {	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5108	case 'v':	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5109	printf("grubby version %s\n", VERSION);	poptStrerror(arg));
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
5110	return 1;	return 1;
	}
	break;
5111	}	}
	}
	if (arg < -1) {
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
5112
5113	if ((chptr = poptGetArg(optCon))) {	if ((chptr = poptGetArg(optCon))) {
5114	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5115	return 1;	return 1;
5116	}	}
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureGrub2) {
	cfi = &grub2ConfigType;
	if (envPath)
	cfi->envFile = envPath;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
5117
5118	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5119	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5120	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5121	else	fprintf(stderr,
5122	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5123	cfi = &eliloConfigType;	return 1;
5124	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5125	cfi = &yabootConfigType;	fprintf(stderr,
5126	#elif __sparc__	_
5127	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5128	#elif __s390__	return 1;
5129	cfi = &ziplConfigType;	} else if (configureGrub2) {
5130	#elif __s390x__	cfi = &grub2ConfigType;
5131	cfi = &ziplConfigtype;	if (envPath)
5132	#else	cfi->envFile = envPath;
5133	cfi = &grubConfigType;	} else if (configureLilo) {
5134	#endif	cfi = &liloConfigType;
5135	}	} else if (configureGrub) {
5136		cfi = &grubConfigType;
5137		} else if (configureELilo) {
5138		cfi = &eliloConfigType;
5139		} else if (configureYaboot) {
5140		cfi = &yabootConfigType;
5141		} else if (configureSilo) {
5142		cfi = &siloConfigType;
5143		} else if (configureZipl) {
5144		cfi = &ziplConfigType;
5145		} else if (configureExtLinux) {
5146		cfi = &extlinuxConfigType;
5147		useextlinuxmenu = 1;
5148		}
5149
5150		if (!cfi) {
5151		if (grub2FindConfig(&grub2ConfigType)) {
5152		cfi = &grub2ConfigType;
5153		configureGrub2 = 1;
5154		if (envPath)
5155		cfi->envFile = envPath;
5156		} else {
5157		#ifdef __ia64__
5158		cfi = &eliloConfigType;
5159		configureLilo = 1;
5160		#elif defined(__powerpc__)
5161		cfi = &yabootConfigType;
5162		configureYaboot = 1;
5163		#elif defined(__sparc__)
5164		cfi = &siloConfigType;
5165		configureSilo = 1;
5166		#elif defined(__s390__) || defined(__s390x__)
5167		cfi = &ziplConfigType;
5168		configureZipl = 1;
5169		#else
5170		cfi = &grubConfigType;
5171		configureGrub = 1;
5172		#endif
5173		}
5174		}
5175
5176	if (!grubConfig) {	if (!grubConfig) {
5177	if (cfi->findConfig)	if (cfi->findConfig)
5178	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5179	if (!grubConfig)	if (!grubConfig)
5180	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5181	}	}
5182
5183	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5184	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5185	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
5186	(defaultIndex >= 0))) {	|| displayDefaultTitle
5187	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
5188		fprintf(stderr,
5189		_("grubby: --bootloader-probe may not be used with "
5190	"specified option"));	"specified option"));
5191	return 1;	return 1;
5192	}	}
5193
5194	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5195	removeKernelPath)) {	removeKernelPath)) {
5196	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5197	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5198	return 1;	return 1;
5199	}	}
5200
5201	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5202	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5203	return 1;	return 1;
5204	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5205	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5206	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5207	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5208	return 1;	return 1;
5209	}	}
5210
5211	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5212	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5213	"not be used together"));	"not be used together"));
5214	return 1;	return 1;
5215	}	}
5216
5217	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5218	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5219	"may not be used together\n"));	"may not be used together\n"));
5220	return 1;	return 1;
5221	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5222	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5223	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5224	return 1;	_("grubby: cannot make removed kernel the default\n"));
5225	} else if (defaultKernel && newKernelPath &&	return 1;
5226	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5227	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5228	defaultKernel = NULL;	makeDefault = 1;
5229	}	defaultKernel = NULL;
5230	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5231	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5232		_("grubby: --set-default and --set-default-index "
5233	"may not be used together\n"));	"may not be used together\n"));
5234	return 1;	return 1;
5235	}	}
5236
5237	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5238	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5239	"is used\n"));	_("grubby: output file must be specified if stdin "
5240	return 1;	"is used\n"));
5241	}	return 1;
5242		}
5243
5244	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5245	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5246	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5247	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5248	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5249	return 1;	return 1;
5250	}	}
5251
5252	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5253
5254	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5255	if (!bootPrefix) {	if (!bootPrefix) {
5256	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5257	if (!bootPrefix) return 1;	if (!bootPrefix)
5258		return 1;
5259		} else {
5260		/* this shouldn't end with a / */
5261		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5262		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5263		}
5264	} else {	} else {
5265	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5266	}	}
	} else {
	bootPrefix = "";
	}
5267
5268	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5269	extraInitrdCount > 0) {	fprintf(stderr,
5270	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5271	return 1;	cfi->defaultConfig);
5272	}	return 1;
5273		}
5274
5275	if (bootloaderProbe) {	if (bootloaderProbe) {
5276	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;
5277	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5278
5279	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5280	if (grub2config) {	if (grub2config) {
5281	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5282	if (!gconfig)	if (!gconfig)
5283	gr2c = 1;	gr2c = 1;
5284	else	else
5285	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5286	}	}
	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");
5287
5288	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5289	}	if (!access(grubconfig, F_OK)) {
5290		gconfig = readConfig(grubconfig, &grubConfigType);
5291		if (!gconfig)
5292		grc = 1;
5293		else
5294		grc = checkForGrub(gconfig);
5295		}
5296
5297	if (grubConfig == NULL) {	if (!access(liloConfigType.defaultConfig, F_OK)) {
5298	printf("Could not find bootloader configuration file.\n");	lconfig =
5299	exit(1);	readConfig(liloConfigType.defaultConfig,
5300	}	&liloConfigType);
5301		if (!lconfig)
5302		lrc = 1;
5303		else
5304		lrc = checkForLilo(lconfig);
5305		}
5306
5307	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5308	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5309		&eliloConfigType);
5310		if (!econfig)
5311		erc = 1;
5312		else
5313		erc = checkForElilo(econfig);
5314		}
5315
5316	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5317	struct singleLine * line;	lconfig =
5318	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5319	char * rootspec;	&extlinuxConfigType);
5320		if (!lconfig)
5321	if (config->defaultImage == -1) return 0;	extrc = 1;
5322	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	else
5323	cfi->defaultIsSaved)	extrc = checkForExtLinux(lconfig);
5324	config->defaultImage = 0;	}
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
5325
5326	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5327		yconfig = readConfig(yabootConfigType.defaultConfig,
5328		&yabootConfigType);
5329		if (!yconfig)
5330		yrc = 1;
5331		else
5332		yrc = checkForYaboot(yconfig);
5333		}
5334
5335	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5336	struct singleLine * line;	|| erc == 1)
5337	struct singleEntry * entry;	return 1;
5338
5339	if (config->defaultImage == -1) return 0;	if (lrc == 2)
5340	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	printf("lilo\n");
5341	cfi->defaultIsSaved)	if (gr2c == 2)
5342	config->defaultImage = 0;	printf("grub2\n");
5343	entry = findEntryByIndex(config, config->defaultImage);	if (grc == 2)
5344	if (!entry) return 0;	printf("grub\n");
5345		if (extrc == 2)
5346	if (!configureGrub2) {	printf("extlinux\n");
5347	line = getLineByType(LT_TITLE, entry->lines);	if (yrc == 2)
5348	if (!line) return 0;	printf("yaboot\n");
5349	printf("%s\n", line->elements[1].item);	if (erc == 2)
5350		printf("elilo\n");
5351
5352	} else {	return 0;
5353	char * title;	}
5354
5355	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	if (grubConfig == NULL) {
5356	line = getLineByType(LT_MENUENTRY, entry->lines);	printf("Could not find bootloader configuration file.\n");
5357	if (!line) return 0;	exit(1);
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5358	}	}
	return 0;
5359
5360	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5361	if (config->defaultImage == -1) return 0;	if (!config)
5362	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	return 1;
	cfi->defaultIsSaved)
	config->defaultImage = 0;
	printf("%i\n", config->defaultImage);
	return 0;
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5363
5364	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5365	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5366	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5367	bootPrefix, flags, defaultIndex);	size_t rs;
5368	setFallbackImage(config, newKernelPath != NULL);
5369	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5370	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5371	if (updateKernelPath && newKernelInitrd) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5372	if (updateInitrd(config, updateKernelPath, bootPrefix,	cfi->defaultIsSaved)
5373	newKernelInitrd)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5374	}	entry = findEntryByIndex(config, config->defaultImage);
5375	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (!entry)
5376	newKernelTitle, newKernelArgs, newKernelInitrd,	return 0;
5377	(const char **)extraInitrds, extraInitrdCount,	if (!suitableImage(entry, bootPrefix, 0, flags))
5378	newMBKernel, newMBKernelArgs)) return 1;	return 0;
5379
5380		line =
5381	if (numEntries(config) == 0) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5382	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	LT_KERNEL_16, entry->lines);
5383	"Not writing out new config.\n"));	if (!line)
5384	return 1;	return 0;
5385	}
5386		rs = getRootSpecifier(line->elements[1].item);
5387		printf("%s%s\n", bootPrefix, line->elements[1].item + rs);
5388
5389		return 0;
5390
5391		} else if (displayDefaultTitle) {
5392		struct singleLine *line;
5393		struct singleEntry *entry;
5394
5395		if (config->defaultImage == NO_DEFAULT_ENTRY)
5396		return 0;
5397		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5398		cfi->defaultIsSaved)
5399		config->defaultImage = FIRST_ENTRY_INDEX;
5400		entry = findEntryByIndex(config, config->defaultImage);
5401		if (!entry)
5402		return 0;
5403
5404		if (!configureGrub2) {
5405		char *title;
5406		line = getLineByType(LT_TITLE, entry->lines);
5407		if (!line)
5408		return 0;
5409		title = extractTitle(config, line);
5410		if (!title)
5411		return 0;
5412		printf("%s\n", title);
5413		free(title);
5414		} else {
5415		char *title;
5416
5417		dbgPrintf
5418		("This is GRUB2, default title is embeded in menuentry\n");
5419		line = getLineByType(LT_MENUENTRY, entry->lines);
5420		if (!line)
5421		return 0;
5422		title = grub2ExtractTitle(line);
5423		if (title)
5424		printf("%s\n", title);
5425		}
5426		return 0;
5427
5428		} else if (displayDefaultIndex) {
5429		if (config->defaultImage == NO_DEFAULT_ENTRY)
5430		return 0;
5431		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5432		cfi->defaultIsSaved)
5433		config->defaultImage = FIRST_ENTRY_INDEX;
5434		printf("%i\n", config->defaultImage);
5435		return 0;
5436
5437		} else if (kernelInfo)
5438		return displayInfo(config, kernelInfo, bootPrefix);
5439
5440		if (copyDefault) {
5441		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5442		if (!template)
5443		return 1;
5444		}
5445
5446		markRemovedImage(config, removeKernelPath, bootPrefix);
5447		markRemovedImage(config, removeMBKernel, bootPrefix);
5448		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5449		makeDefault, bootPrefix, flags, defaultIndex,
5450		newIndex);
5451		setFallbackImage(config, newKernelPath != NULL);
5452		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5453		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5454		return 1;
5455		if (updateKernelPath && newKernelInitrd) {
5456		if (newMBKernel) {
5457		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5458		bootPrefix, newKernelInitrd,
5459		newKernelTitle))
5460		return 1;
5461		} else {
5462		if (updateInitrd(config, updateKernelPath, bootPrefix,
5463		newKernelInitrd, newKernelTitle))
5464		return 1;
5465		}
5466		}
5467		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5468		newKernelTitle, newKernelArgs, newKernelInitrd,
5469		(const char **)extraInitrds, extraInitrdCount,
5470		newMBKernel, newMBKernelArgs, newDevTreePath,
5471		newIndex))
5472		return 1;
5473
5474		if (numEntries(config) == 0) {
5475		fprintf(stderr,
5476		_("grubby: doing this would leave no kernel entries. "
5477		"Not writing out new config.\n"));
5478		return 1;
5479		}
5480
5481	if (!outputFile)	if (!outputFile)
5482	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5483
5484	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5485	}	}

---

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Legend: Removed from v.2255   changed lines   Added in v.3138