Diff of /tags/grubby-8_40_20170706/grubby.c

Parent Directory | Revision Log | Patch

	revision 2258 by niro, Mon Oct 21 14:02:25 2013 UTC	revision 3025 by niro, Tue Jun 27 14:42:27 2017 UTC
#	Line 48	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 60  int debug = 0; /* Currently just for tem	Line 60  int debug = 0; /* Currently just for tem
60
61	int isEfi = 0;	int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69	char *saved_command_line = NULL;	char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_KERNEL_EFI   = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98	LT_INITRD_EFI   = 1 << 21,	LT_KERNEL_EFI = 1 << 20,
99	LT_UNKNOWN      = 1 << 22,	LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 119  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154	typedef char *(*getEnvFunc)(struct configFileInfo *, char *name);	typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155	typedef int (*setEnvFunc)(struct configFileInfo *, char *name, char *value);	typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	getEnvFunc getEnv;	getEnvFunc getEnv;
162	setEnvFunc setEnv;	setEnvFunc setEnv;
163	struct keywordTypes * keywords;	struct keywordTypes *keywords;
164	int caseInsensitive;	int caseInsensitive;
165	int defaultIsIndex;	int defaultIsIndex;
166	int defaultIsVariable;	int defaultIsVariable;
167	int defaultSupportSaved;	int defaultSupportSaved;
168	int defaultIsSaved;	int defaultIsSaved;
169	enum lineType_e entryStart;	int defaultIsUnquoted;
170	enum lineType_e entryEnd;	enum lineType_e entryStart;
171	int needsBootPrefix;	enum lineType_e entryEnd;
172	int argsInQuotes;	int needsBootPrefix;
173	int maxTitleLength;	int argsInQuotes;
174	int titleBracketed;	int maxTitleLength;
175	int titlePosition;	int titleBracketed;
176	int mbHyperFirst;	int titlePosition;
177	int mbInitRdIsModule;	int mbHyperFirst;
178	int mbConcatArgs;	int mbInitRdIsModule;
179	int mbAllowExtraInitRds;	int mbConcatArgs;
180	char *envFile;	int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/boot/grub/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/menu.lst",	"/boot/grub/grub.conf",
200	"/etc/grub.conf",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "linuxefi",   LT_KERNEL_EFI,  ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "initrdefi",  LT_INITRD_EFI,  ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ "module",     LT_MBMODULE,    ' ' },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	{ "kernel",     LT_HYPER,       ' ' },	{"initrd16", LT_INITRD_16, ' ', ' '},
246	{ NULL, 0, 0 },	{"module", LT_MBMODULE, ' '},
247		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{NULL, 0, 0},
250	};	};
251
252	const char *grub2FindConfig(struct configFileInfo *cfi) {	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static const char *configFiles[] = {	{
254	"/boot/grub/grub-efi.cfg",	static const char *configFiles[] = {
255	"/boot/grub/grub.cfg",	"/boot/grub/grub-efi.cfg",
256	NULL	"/boot/grub/grub.cfg",
257	};	"/etc/grub2-efi.cfg",
258	static int i = -1;	"/etc/grub2.cfg",
259	static const char *grub_cfg = "/boot/grub/grub.cfg";	"/boot/grub2/grub.cfg",
260	int rc = -1;	"/boot/grub2-efi/grub.cfg",
261		NULL
262	if (i == -1) {	};
263	for (i = 0; configFiles[i] != NULL; i++) {	static int i = -1;
264	dbgPrintf("Checking \"%s\": ", configFiles[i]);	static const char *grub_cfg = "/boot/grub/grub.cfg";
265	if ((rc = access(configFiles[i], R_OK))) {	int rc = -1;
266	if (errno == EACCES) {
267	printf("Unable to access bootloader configuration file "	if (i == -1) {
268	"\"%s\": %m\n", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
269	exit(1);	dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282	}	}
	continue;
	} else {
	dbgPrintf("found\n");
	return configFiles[i];
	}
283	}	}
	}
284
285	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286	* that isn't in grub1, and if it exists, return the config file path	* that isn't in grub1, and if it exists, return the config file path
287	* that they use. */	* that they use. */
288	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return grub_cfg;	return grub_cfg;
291	}	}
292
293	dbgPrintf("not found\n");	dbgPrintf("not found\n");
294	return configFiles[i];	return configFiles[i];
295	}	}
296
297	/* kind of hacky.  It'll give the first 1024 bytes, ish. */	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	static char *grub2GetEnv(struct configFileInfo *info, char *name)	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	{	{
300	static char buf[1025];	static char buf[1025];
301	char *s = NULL;	char *s = NULL;
302	char *ret = NULL;	char *ret = NULL;
303	char *envFile = info->envFile ? info->envFile : "/boot/grub2/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304	int rc = asprintf(&s, "grub2-editenv %s list | grep '^%s='", envFile, name);	int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306	if (rc < 0)
307	return NULL;	if (rc < 0)
308		return NULL;
309	FILE *f = popen(s, "r");
310	if (!f)	FILE *f = popen(s, "r");
311	goto out;	if (!f)
312		goto out;
313	memset(buf, '\0', sizeof (buf));
314	ret = fgets(buf, 1024, f);	memset(buf, '\0', sizeof(buf));
315	pclose(f);	ret = fgets(buf, 1024, f);
316		pclose(f);
317	if (ret) {
318	ret += strlen(name) + 1;	if (ret) {
319	ret[strlen(ret) - 1] = '\0';	ret += strlen(name) + 1;
320	}	ret[strlen(ret) - 1] = '\0';
321	dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);	}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323	out:	out:
324	free(s);	free(s);
325	return ret;	return ret;
326	}	}
327
328	static int sPopCount(const char *s, const char *c)	static int sPopCount(const char *s, const char *c)
329	{	{
330	int ret = 0;	int ret = 0;
331	if (!s)	if (!s)
332	return -1;	return -1;
333	for (int i = 0; s[i] != '\0'; i++)	for (int i = 0; s[i] != '\0'; i++)
334	for (int j = 0; c[j] != '\0'; j++)	for (int j = 0; c[j] != '\0'; j++)
335	if (s[i] == c[j])	if (s[i] == c[j])
336	ret++;	ret++;
337	return ret;	return ret;
338	}	}
339
340	static char *shellEscape(const char *s)	static char *shellEscape(const char *s)
341	{	{
342	int l = strlen(s) + sPopCount(s, "'") * 2;	int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	char *ret = calloc(l+1, sizeof (*ret));	char *ret = calloc(l + 1, sizeof(*ret));
345	if (!ret)	if (!ret)
346	return NULL;	return NULL;
347	for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {	for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348	if (s[i] == '\'')	if (s[i] == '\'')
349	ret[j++] = '\\';	ret[j++] = '\\';
350	ret[j] = s[i];	ret[j] = s[i];
351	}	}
352	return ret;	return ret;
353	}	}
354
355	static void unquote(char *s)	static void unquote(char *s)
356	{	{
357	int l = strlen(s);	int l = strlen(s);
358
359	if ((s[l-1] == '\'' && s[0] == '\'') || (s[l-1] == '"' && s[0] == '"')) {	if ((s[l - 1] == '\'' && s[0] == '\'')
360	memmove(s, s+1, l-2);	|| (s[l - 1] == '"' && s[0] == '"')) {
361	s[l-2] = '\0';	memmove(s, s + 1, l - 2);
362	}	s[l - 2] = '\0';
363		}
364	}	}
365
366	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	{	{
368	char *s = NULL;	char *s = NULL;
369	int rc = 0;	int rc = 0;
370	char *envFile = info->envFile ? info->envFile : "/boot/grub2/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372	unquote(value);	unquote(value);
373	value = shellEscape(value);	value = shellEscape(value);
374	if (!value)	if (!value)
375	return -1;	return -1;
376
377	rc = asprintf(&s, "grub2-editenv %s set '%s=%s'", envFile, name, value);	rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378	free(value);	free(value);
379	if (rc <0)	if (rc < 0)
380	return -1;	return -1;
381
382	dbgPrintf("grub2SetEnv(%s): %s\n", name, s);	dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383	rc = system(s);	rc = system(s);
384	free(s);	free(s);
385	return rc;	return rc;
386	}	}
387
388	/* this is a gigantic hack to avoid clobbering grub2 variables... */	/* this is a gigantic hack to avoid clobbering grub2 variables... */
389	static int is_special_grub2_variable(const char *name)	static int is_special_grub2_variable(const char *name)
390	{	{
391	if (!strcmp(name,"\"${next_entry}\""))	if (!strcmp(name, "\"${next_entry}\""))
392	return 1;	return 1;
393	if (!strcmp(name,"\"${prev_saved_entry}\""))	if (!strcmp(name, "\"${prev_saved_entry}\""))
394	return 1;	return 1;
395	return 0;	return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int count = 0;	{
400		int count = 0;
401
402	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	static int iskernel(enum lineType_e type) {	static int iskernel(enum lineType_e type)
429	return (type == LT_KERNEL || type == LT_KERNEL_EFI);	{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432	}	}
433
434	static int isinitrd(enum lineType_e type) {	static int isinitrd(enum lineType_e type)
435	return (type == LT_INITRD || type == LT_INITRD_EFI);	{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438	}	}
439
440	char *grub2ExtractTitle(struct singleLine * line) {	char *grub2ExtractTitle(struct singleLine *line)
441	char * current;	{
442	char * current_indent;	char *current;
443	int current_len;	char *current_indent;
444	int current_indent_len;	int current_len;
445	int i;	int current_indent_len;
446		int i;
447	/* bail out if line does not start with menuentry */
448	if (strcmp(line->elements[0].item, "menuentry"))	/* bail out if line does not start with menuentry */
449	return NULL;	if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
	i = 1;
	current = line->elements[i].item;
	current_len = strlen(current);
	/* if second word is quoted, strip the quotes and return single word */
	if (isquote(*current) && isquote(current[current_len - 1])) {
	char *tmp;
	tmp = strdup(current);
	*(tmp + current_len - 1) = '\0';
	return ++tmp;
	}
451
452	/* if no quotes, return second word verbatim */	i = 1;
	if (!isquote(*current))
	return current;
	/* second element start with a quote, so we have to find the element
	* whose last character is also quote (assuming it's the closing one) */
	int resultMaxSize;
	char * result;
	resultMaxSize = sizeOfSingleLine(line);
	result = malloc(resultMaxSize);
	snprintf(result, resultMaxSize, "%s", ++current);
	i++;
	for (; i < line->numElements; ++i) {
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (!isquote(current[current_len-1])) {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.getEnv = grub2GetEnv,	.getEnv = grub2GetEnv,
503	.setEnv = grub2SetEnv,	.setEnv = grub2SetEnv,
504	.keywords = grub2Keywords,	.keywords = grub2Keywords,
505	.defaultIsIndex = 1,	.defaultIsIndex = 1,
506	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
507	.defaultIsVariable = 1,	.defaultIsVariable = 1,
508	.entryStart = LT_MENUENTRY,	.entryStart = LT_MENUENTRY,
509	.entryEnd = LT_ENTRY_END,	.entryEnd = LT_ENTRY_END,
510	.titlePosition = 1,	.titlePosition = 1,
511	.needsBootPrefix = 1,	.needsBootPrefix = 1,
512	.mbHyperFirst = 1,	.mbHyperFirst = 1,
513	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
514	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.caseInsensitive = 1,	.caseInsensitive = 1,
666	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
667	.needsBootPrefix = 1,	.needsBootPrefix = 1,
668	.maxTitleLength = 255,	.maxTitleLength = 255,
669	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	int * index);	int *index);
696	static int readFile(int fd, char ** bufPtr);	static int readFile(int fd, char **bufPtr);
697	static void lineInit(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	struct singleLine * lineDup(struct singleLine * line);	struct singleLine *lineDup(struct singleLine *line);
699	static void lineFree(struct singleLine * line);	static void lineFree(struct singleLine *line);
700	static int lineWrite(FILE * out, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int getNextLine(char **bufPtr, struct singleLine *line,
703	struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static char * getRootSpecifier(char * str);	static char *getRootSpecifier(char *str);
705	static void requote(struct singleLine *line, struct configFileInfo * cfi);	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	static void insertElement(struct singleLine * line,	static void insertElement(struct singleLine *line,
707	const char * item, int insertHere,	const char *item, int insertHere,
708	struct configFileInfo * cfi);	struct configFileInfo *cfi);
709	static void removeElement(struct singleLine * line, int removeHere);	static void removeElement(struct singleLine *line, int removeHere);
710	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct configFileInfo * cfi);	struct configFileInfo *cfi);
714	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * line);	struct singleLine *line);
716	static int checkForExtLinux(struct grubConfig * config);	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	struct singleLine * tmplLine,	struct singleLine *tmplLine,
719	struct singleLine * prevLine,	struct singleLine *prevLine,
720	const char * val,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi);	struct singleLine *addLine(struct singleEntry *entry,
722	struct singleLine *  addLine(struct singleEntry * entry,	struct configFileInfo *cfi,
723	struct configFileInfo * cfi,	enum lineType_e type, char *defaultIndent,
724	enum lineType_e type, char * defaultIndent,	const char *val);
	const char * val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757		return buf;
758		}
759
760	return buf;	static inline int
761		kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762		{
763		int kwl = strlen(kw->key);
764		int ll = strlen(label);
765		int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783		}
784		return 0;
785	}	}
786
787	static enum lineType_e preferredLineType(enum lineType_e type,	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct configFileInfo *cfi) {	struct configFileInfo *cfi)
789	if (isEfi && cfi == &grub2ConfigType) {	{
790	switch (type) {	if (isEfi && cfi == &grub2ConfigType) {
791	case LT_KERNEL:	switch (type) {
792	return LT_KERNEL_EFI;	case LT_KERNEL:
793	case LT_INITRD:	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	return LT_INITRD_EFI;	case LT_INITRD:
795	default:	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	return type;	default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810	}	}
811	}	return type;
	return type;
812	}	}
813
814	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
816	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
817	if (kw->type == type)	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	return kw;	if (kw->type == type)
819	}	return kw;
820	return NULL;	}
821		return NULL;
822	}	}
823
824	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct keywordTypes *kt = getKeywordByType(type, cfi);	{
826	if (kt)	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	return kt->key;	if (kt)
828	return "unknown";	return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getpathbyspec(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_devname(blkid, device, NULL);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static char * getuuidbydev(char *device) {	static char *getuuidbydev(char *device)
841	if (!blkid)	{
842	blkid_get_cache(&blkid, NULL);	if (!blkid)
843		blkid_get_cache(&blkid, NULL);
844
845	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
851	if (cfi->caseInsensitive) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcasecmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
	} else {
	if (!strcmp(keyword, kw->key))
	return kw->type;
854	}	}
855	}	return LT_UNKNOWN;
	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title = NULL;	/* bracketed title... let's extract it */
897	if (line->type == LT_TITLE) {	char *title = NULL;
898	title = strdup(line->elements[0].item);	if (line->type == LT_TITLE) {
899	title++;	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	*(title + strlen(title) - 1) = '\0';	if (cfg->cfi->titleBracketed) {
901	} else if (line->type == LT_MENUENTRY)	tmp++;
902	title = strdup(line->elements[1].item);	title = strdup(tmp);
903	else	*(title + strlen(title) - 1) = '\0';
904	return NULL;	} else {
905	return title;	title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912	}	}
913
914	static int readFile(int fd, char ** bufPtr) {	static int readFile(int fd, char **bufPtr)
915	int alloced = 0, size = 0, i = 0;	{
916	char * buf = NULL;	int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919		do {
920		size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	do {	if (i < 0) {
928	size += i;	fprintf(stderr, _("error reading input: %s\n"),
929	if ((size + 1024) > alloced) {	strerror(errno));
930	alloced += 4096;	free(buf);
931	buf = realloc(buf, alloced + 1);	return 1;
932	}	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
933
934	buf = realloc(buf, size + 2);	buf = realloc(buf, size + 2);
935	if (size == 0)	if (size == 0)
936	buf[size++] = '\n';	buf[size++] = '\n';
937	else	else if (buf[size - 1] != '\n')
938	if (buf[size - 1] != '\n')	buf[size++] = '\n';
939	buf[size++] = '\n';	buf[size] = '\0';
	buf[size] = '\0';
940
941	*bufPtr = buf;	*bufPtr = buf;
942
943	return 0;	return 0;
944	}	}
945
946	static void lineInit(struct singleLine * line) {	static void lineInit(struct singleLine *line)
947	line->indent = NULL;	{
948	line->elements = NULL;	line->type = LT_UNIDENTIFIED;
949	line->numElements = 0;	line->indent = NULL;
950	line->next = NULL;	line->elements = NULL;
951	}	line->numElements = 0;
952		line->next = NULL;
	struct singleLine * lineDup(struct singleLine * line) {
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
	return newLine;
953	}	}
954
955	static void lineFree(struct singleLine * line) {	struct singleLine *lineDup(struct singleLine *line)
956	if (line->indent) free(line->indent);	{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959		newLine->indent = strdup(line->indent);
960		newLine->next = NULL;
961		newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < newLine->numElements; i++) {
967	free(line->elements[i].item);	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	free(line->elements[i].indent);	newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (line->elements) free(line->elements);	return newLine;
	lineInit(line);
972	}	}
973
974	static int lineWrite(FILE * out, struct singleLine * line,	static void lineFree(struct singleLine *line)
975	struct configFileInfo * cfi) {	{
976	if (fprintf(out, "%s", line->indent) == -1) return -1;	if (line->indent)
977		free(line->indent);
	for (int i = 0; i < line->numElements; i++) {
	/* Need to handle this, because we strip the quotes from
	* menuentry when read it. */
	if (line->type == LT_MENUENTRY && i == 1) {
	if(!isquote(*line->elements[i].item))
	fprintf(out, "\'%s\'", line->elements[i].item);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
978
979	continue;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982	}	}
983
984	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	if (line->elements)
985	if (fputc('"', out) == EOF) return -1;	free(line->elements);
986		lineInit(line);
987		}
988
989		static int lineWrite(FILE * out, struct singleLine *line,
990		struct configFileInfo *cfi)
991		{
992		if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
996	if (i < line->numElements - 1)	/* Need to handle this, because we strip the quotes from
997	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	* menuentry when read it. */
998	}	if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	continue;
1023	if (fputc('"', out) == EOF) return -1;	}
1024
1025	if (fprintf(out, "\n") == -1) return -1;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	return 0;	if (fprintf(out, "\n") == -1)
1041		return -1;
1042
1043		return 0;
1044	}	}
1045
1046	/* we've guaranteed that the buffer ends w/ \n\0 */	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
1049	char * end;	{
1050	char * start = *bufPtr;	char *end;
1051	char * chptr;	char *start = *bufPtr;
1052	int elementsAlloced = 0;	char *chptr;
1053	struct lineElement * element;	int elementsAlloced = 0;
1054	int first = 1;	struct lineElement *element;
1055		int first = 1;
1056
1057	lineFree(line);	lineFree(line);
1058
1059	end = strchr(start, '\n');	end = strchr(start, '\n');
1060	*end = '\0';	*end = '\0';
1061	*bufPtr = end + 1;	*bufPtr = end + 1;
1062
1063	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
1064
1065	line->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	while (start < end) {	while (start < end) {
1069	/* we know !isspace(*start) */	/* we know !isspace(*start) */
1070
1071	if (elementsAlloced == line->numElements) {	if (elementsAlloced == line->numElements) {
1072	elementsAlloced += 5;	elementsAlloced += 5;
1073	line->elements = realloc(line->elements,	line->elements = realloc(line->elements,
1074	sizeof(*line->elements) * elementsAlloced);	sizeof(*line->elements) *
1075	}	elementsAlloced);
1076		}
1077
1078	element = line->elements + line->numElements;	element = line->elements + line->numElements;
1079
1080	chptr = start;	chptr = start;
1081	while (*chptr && !isspace(*chptr)) {	while (*chptr && !isspace(*chptr)) {
1082	if (first && *chptr == '=') break;	if (first && *chptr == '=')
1083	chptr++;	break;
1084	}	chptr++;
1085	element->item = strndup(start, chptr - start);	}
1086	start = chptr;	if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098	/* lilo actually accepts the pathological case of append = " foo " */	do {
1099	if (*start == '=')	for (; *chptr && isspace(*chptr); chptr++) ;
1100	chptr = start + 1;	if (*chptr == '=')
1101	else	chptr = chptr + 1;
1102	chptr = start;	} while (isspace(*chptr));
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1103
1104	element->indent = strndup(start, chptr - start);	element->indent = strndup(start, chptr - start);
1105	start = chptr;	start = chptr;
1106
1107	line->numElements++;	line->numElements++;
1108	first = 0;	first = 0;
1109	}	}
1110
1111	if (!line->numElements)	if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	else {	else {
1114	line->type = getTypeByKeyword(line->elements[0].item, cfi);	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	if (line->type == LT_UNKNOWN) {	if (line->type == LT_UNKNOWN) {
1116	/* zipl does [title] instead of something reasonable like all	/* zipl does [title] instead of something reasonable
1117	* the other boot loaders.  kind of ugly */	* like all the other boot loaders.  kind of ugly */
1118	if (cfi->titleBracketed && isBracketedTitle(line)) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	line->type = LT_TITLE;	line->type = LT_TITLE;
1120	}	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1121
1122	fullLine = malloc(len + 1);	/* this is awkward, but we need to be able to handle
1123	strcpy(fullLine, line->indent);	* keywords that begin with a # (specifically for
1124	free(line->indent);	* #boot in grub.conf), but still make comments lines
1125	line->indent = fullLine;	* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	for (int i = 0; i < line->numElements; i++) {	line->type = LT_WHITESPACE;
1151	strcat(fullLine, line->elements[i].item);	line->numElements = 0;
1152	strcat(fullLine, line->elements[i].indent);	}
1153	free(line->elements[i].item);	} else if (line->type == LT_INITRD) {
1154	free(line->elements[i].indent);	struct keywordTypes *kw;
	}
1155
1156	line->type = LT_WHITESPACE;	kw = getKeywordByType(line->type, cfi);
	line->numElements = 0;
	}
	} else {
	struct keywordTypes *kw;
1157
1158	kw = getKeywordByType(line->type, cfi);	/* space isn't the only separator, we need to split
1159		* elements up more
1160		*/
1161		if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	/* space isn't the only separator, we need to split	for (int j = line->numElements; j > i;
1187	* elements up more	j--) {
1188	*/	line->elements[j +
1189	if (!isspace(kw->separatorChar)) {	numNewElements] =
1190	char indent[2] = "";	line->elements[j];
1191	indent[0] = kw->separatorChar;	}
1192	for (int i = 1; i < line->numElements; i++) {	line->numElements += numNewElements;
	char *p;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (int j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
	}
	line->numElements += numNewElements;
1193
1194	p = line->elements[i].item;	p = line->elements[i].item;
1195	while (*p != '\0') {	while (*p != '\0') {
1196
1197	while (*p != kw->separatorChar && *p != '\0') p++;	while (*p != kw->separatorChar
1198	if (*p == '\0') {	&& *p != '\0')
1199	break;	p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213	}	}
	line->elements[i + 1].indent = line->elements[i].indent;
	line->elements[i].indent = strdup(indent);
	*p++ = '\0';
	i++;
	line->elements[i].item = strdup(p);
1214	}	}
1215	}	} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static int isnumber(const char *s)	static int isnumber(const char *s)
1255	{	{
1256	int i;	int i;
1257	for (i = 0; s[i] != '\0'; i++)	for (i = 0; s[i] != '\0'; i++)
1258	if (s[i] < '0' || s[i] > '9')	if (s[i] < '0' || s[i] > '9')
1259	return 0;	return 0;
1260	return i;	return i;
1261	}	}
1262
1263	static struct grubConfig * readConfig(const char * inName,	static struct grubConfig *readConfig(const char *inName,
1264	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
1265	int in;	{
1266	char * incoming = NULL, * head;	int in;
1267	int rc;	char *incoming = NULL, *head;
1268	int sawEntry = 0;	int rc;
1269	int movedLine = 0;	int sawEntry = 0;
1270	struct grubConfig * cfg;	int movedLine = 0;
1271	struct singleLine * last = NULL, * line, * defaultLine = NULL;	struct grubConfig *cfg;
1272	char * end;	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	struct singleEntry * entry = NULL;	char *end;
1274	int len;	struct singleEntry *entry = NULL;
1275	char * buf;	int len;
1276		char *buf;
1277	if (inName == NULL) {
1278	printf("Could not find bootloader configuration\n");	if (inName == NULL) {
1279	exit(1);	printf("Could not find bootloader configuration\n");
1280	} else if (!strcmp(inName, "-")) {	exit(1);
1281	in = 0;	} else if (!strcmp(inName, "-")) {
1282	} else {	in = 0;
1283	if ((in = open(inName, O_RDONLY)) < 0) {	} else {
1284	fprintf(stderr, _("error opening %s for read: %s\n"),	if ((in = open(inName, O_RDONLY)) < 0) {
1285	inName, strerror(errno));	fprintf(stderr, _("error opening %s for read: %s\n"),
1286	return NULL;	inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
	rc = readFile(in, &incoming);
	close(in);
	if (rc) return NULL;
	head = incoming;
	cfg = malloc(sizeof(*cfg));
	cfg->primaryIndent = strdup("");
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
	if (getNextLine(&head, line, cfi)) {
	free(line);
	/* XXX memory leak of everything in cfg */
	return NULL;
	}
	if (!sawEntry && line->numElements) {
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1290
1291	entry->skip = 0;	rc = readFile(in, &incoming);
1292	entry->multiboot = 0;	close(in);
1293	entry->lines = NULL;	if (rc)
1294	entry->next = NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1298	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->primaryIndent = strdup("");
1299	dbgPrintf("%s", line->indent);	cfg->secondaryIndent = strdup("\t");
1300	for (int i = 0; i < line->numElements; i++)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	cfg->cfi = cfi;
1302	dbgPrintf("\n");	cfg->theLines = NULL;
1303	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->entries = NULL;
1304	if (kwType && line->numElements == 3 &&	cfg->fallbackImage = 0;
1305	!strcmp(line->elements[1].item, kwType->key) &&	cfg->isModified = 0;
1306	!is_special_grub2_variable(line->elements[2].item)) {
1307	dbgPrintf("Line sets default config\n");	/* copy everything we have */
1308	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	while (*head) {
1309	defaultLine = line;	line = malloc(sizeof(*line));
1310	}	lineInit(line);
1311	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
1312	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	if (getNextLine(&head, line, cfi)) {
1313	defaultLine = line;	free(line);
1314		/* XXX memory leak of everything in cfg */
1315	} else if (iskernel(line->type)) {	return NULL;
1316	/* if by some freak chance this is multiboot and the "module"	}
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	for (struct singleLine *l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (iskernel(l->type)) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1317
1318	for (int i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1320	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1328	free(line->elements[i].indent);	if (!entry) {
1329	}	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1333	line->elements[line->numElements - 1].indent;	entry = entry->next;
1334	line->elements[1].item = buf;	}
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
	/* allocate mem for extra flags. */
	extras = malloc(len + 1);
	*extras = '\0';
	/* get title. */
	for (int i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (isquote(*line->elements[i].item))
	title = line->elements[i].item + 1;
	else
	title = line->elements[i].item;
1335
1336	len = strlen(title);	entry->skip = 0;
1337	if (isquote(title[len-1])) {	entry->multiboot = 0;
1338	strncat(buf, title,len-1);	entry->lines = NULL;
1339	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1340	}	}
	}
	/* get extras */
	int count = 0;
	for (int i = 0; i < line->numElements; i++) {
	if (count >= 2) {
	strcat(extras, line->elements[i].item);
	strcat(extras, line->elements[i].indent);
	}
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	/* count ' or ", there should be two in menuentry line. */
	if (isquote(*line->elements[i].item))
	count++;
	len = strlen(line->elements[i].item);
	if (isquote(line->elements[i].item[len -1]))
	count++;
	/* ok, we get the final ' or ", others are extras. */
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(line->elements[last].item[len]))
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1341
1342	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1343	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1344	entry->lines = line;	line->numElements);
1345	else	dbgPrintf("%s", line->indent);
1346	last->next = line;	for (int i = 0; i < line->numElements; i++)
1347	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1350	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1351	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1352	sawEntry = 0;	if (kwType && line->numElements == 3
1353	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (!cfg->theLines)	&& !is_special_grub2_variable(
1355	cfg->theLines = line;	line->elements[2].item)) {
1356	else	dbgPrintf("Line sets default config\n");
1357	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368	last = line;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	free(incoming);	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	if (defaultLine) {	cfg->fallbackImage =
1391	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1392	cfi->defaultSupportSaved &&	if (*end)
1393	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1394	cfg->cfi->defaultIsSaved = 1;
1395	cfg->defaultImage = DEFAULT_SAVED_GRUB2;	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	if (cfg->cfi->getEnv) {	|| (line->type == LT_TITLE
1397	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	&& line->numElements > 1)) {
1398	if (defTitle) {	/* make the title/default a single argument (undoing
1399	int index = 0;	* our parsing) */
1400	if (isnumber(defTitle)) {	len = 0;
1401	index = atoi(defTitle);	for (int i = 1; i < line->numElements; i++) {
1402	entry = findEntryByIndex(cfg, index);	len += strlen(line->elements[i].item);
1403	} else {	len += strlen(line->elements[i].indent);
	entry = findEntryByTitle(cfg, defTitle, &index);
1404	}	}
1405	if (entry)	buf = malloc(len + 1);
1406	cfg->defaultImage = index;	*buf = '\0';
	}
	}
	} else if (cfi->defaultIsVariable) {
	char *value = defaultLine->elements[2].item;
	while (*value && (*value == '"' || *value == '\'' ||
	*value == ' ' || *value == '\t'))
	value++;
	cfg->defaultImage = strtol(value, &end, 10);
	while (*end && (*end == '"' || *end == '\'' ||
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	int i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1407
1408	if (entry){	for (int i = 1; i < line->numElements; i++) {
1409	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1410	}else{	free(line->elements[i].item);
1411	cfg->defaultImage = -1;
1412	}	if ((i + 1) != line->numElements) {
1413	}	strcat(buf, line->elements[i].indent);
1414	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {	free(line->elements[i].indent);
1415	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");	}
1416	if (defTitle) {	}
	int index = 0;
	if (isnumber(defTitle)) {
	index = atoi(defTitle);
	entry = findEntryByIndex(cfg, index);
	} else {
	entry = findEntryByTitle(cfg, defTitle, &index);
	}
	if (entry)
	cfg->defaultImage = index;
	}
	} else {
	cfg->defaultImage = 0;
	}
1417
1418	return cfg;	line->elements[1].indent =
1419	}	line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1438	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1439	struct singleEntry * entry;	*extras = '\0';
1440	struct singleLine * line;
1441	int i;	/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1446	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1447	else if (cfg->cfi->defaultIsSaved) {	&& quote_char == '\0') {
1448	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1449	if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {	quote_char = *line->elements[i].item;
1450	char *title;	title = line->elements[i].item + 1;
1451	entry = findEntryByIndex(cfg, cfg->defaultImage);	} else {
1452	line = getLineByType(LT_MENUENTRY, entry->lines);	title = line->elements[i].item;
1453	if (!line)	}
	line = getLineByType(LT_TITLE, entry->lines);
	if (line) {
	title = extractTitle(line);
	if (title)
	cfg->cfi->setEnv(cfg->cfi, "saved_entry", title);
	}
	}
	} else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1454
1455	entry = cfg->entries;	len = strlen(title);
1456	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	i = 0;	/* get extras */
1466	while (entry && i < image) {	int count = 0;
1467	entry = entry->next;	quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1476	i++;	(line->elements[i].item, "menuentry"))
1477	}	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	if (!entry) return;	len = strlen(line->elements[i].item);
1488
1489	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1494	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1495	line->elements[1].item);	line->elements[1].indent =
1496	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1497	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1498	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1499	extractTitle(line));	line->elements[line->numElements - 2].indent;
1500	}	line->elements[2].item = extras;
1501	}	line->numElements = 3;
1502	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503	}	/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1511	const char * prefix) {	memmove(line->elements[1].item,
1512	FILE * out;	line->elements[1].item + 1,
1513	struct singleLine * line;	strlen(line->elements[1].item +
1514	struct singleEntry * entry;	1) + 1);
1515	char * tmpOutName;
1516	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1517	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1518	int i;	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520	if (!strcmp(outName, "-")) {	}
1521	out = stdout;	}
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	char *dir = strdupa(outName);
	rc = chdir(dirname(dir));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key) &&
	!is_special_grub2_variable(line->elements[2].item)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
1581
1582	return 0;	free(incoming);
	}
1583
1584	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int i = 0;	if (defaultLine) {
1586	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1589	while (entry) {	"\"${saved_entry}\"", 16)) {
1590	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1591	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592	entry = entry->next;	if (cfg->cfi->getEnv) {
1593	}	char *defTitle =
1594	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1595	}	if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673	static char *findDiskForRoot()	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
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824	for (line = entry->lines; line; line = line->next) {	outName = buf;
1825	log_message(f, "DBG: %s", line->indent);	outName[rc] = '\0';
1826	for (i = 0; i < line->numElements; i++) {	}
1827	/* Need to handle this, because we strip the quotes from
1828	* menuentry when read it. */	tmpOutName = alloca(strlen(outName) + 2);
1829	if (line->type == LT_MENUENTRY && i == 1) {	sprintf(tmpOutName, "%s-", outName);
1830	if(!isquote(*line->elements[i].item))	out = fopen(tmpOutName, "w");
1831	log_message(f, "\'%s\'", line->elements[i].item);	if (!out) {
1832	else	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833	log_message(f, "%s", line->elements[i].item);	tmpOutName, strerror(errno));
1834	log_message(f, "%s", line->elements[i].indent);	return 1;
1835		}
1836	continue;
1837	}	if (!stat(outName, &sb)) {
1838		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839	log_message(f, "%s%s",	fprintf(stderr,
1840	line->elements[i].item, line->elements[i].indent);	_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848	}	}
1849	log_message(f, "\n");
1850	}	line = cfg->theLines;
1851		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852		while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881		line = line->next;
1882		}
1883
1884		if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889		i = 0;
1890		while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908		if (tmpOutName) {
1909		if (rename(tmpOutName, outName)) {
1910		fprintf(stderr,
1911		_("grubby: error moving %s to %s: %s\n"),
1912		tmpOutName, outName, strerror(errno));
1913		unlink(outName);
1914		return 1;
1915		}
1916		}
1917
1918		return 0;
1919	}	}
1920
1921	void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...)	static int numEntries(struct grubConfig *cfg)
1922	{	{
1923	static int once;	int i = 0;
1924	va_list argp, argq;	struct singleEntry *entry;
1925
1926	va_start(argp, fmt);	entry = cfg->entries;
1927		while (entry) {
1928		if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931		}
1932		return i;
1933		}
1934
1935	va_copy(argq, argp);	static char *findDiskForRoot()
1936	if (!once) {	{
1937	log_time(NULL);	int fd;
1938	log_message(NULL, "command line: %s\n", saved_command_line);	char buf[65536];
1939	}	char *devname;
1940	log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed");	char *chptr;
1941	log_vmessage(NULL, fmt, argq);	int rc;
1942
1943	printEntry(entry, NULL);	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944	va_end(argq);	fprintf(stderr, "grubby: failed to open %s: %s\n",
1945		_PATH_MOUNTED, strerror(errno));
1946		return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955		}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	if (!debug) {	char *foundanswer = NULL;
	once = 1;
	va_end(argp);
	return;
	}
1961
1962	if (okay) {	while (chptr && chptr != buf + rc) {
1963	va_end(argp);	devname = chptr;
1964	return;
1965	}	/*
1966		* The first column of a mtab entry is the device, but if the
1967		* entry is a special device it won't start with /, so move
1968		* on to the next line.
1969		*/
1970		if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977		/* Seek to the next space */
1978		chptr = strchr(chptr, ' ');
1979		if (!chptr) {
1980		fprintf(stderr, "grubby: error parsing %s: %s\n",
1981		_PATH_MOUNTED, strerror(errno));
1982		return NULL;
1983		}
1984
1985		/*
1986		* The second column of a mtab entry is the mount point, we
1987		* are looking for '/' obviously.
1988		*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994		/* Next line */
1995		chptr = strchr(chptr, '\n');
1996		if (chptr)
1997		chptr++;
1998		}
1999
2000		/* Return the last / entry found */
2001		if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007		return NULL;
2008		}
2009
2010		void printEntry(struct singleEntry *entry, FILE * f)
2011		{
2012		int i;
2013		struct singleLine *line;
2014
2015		for (line = entry->lines; line; line = line->next) {
2016		log_message(f, "DBG: %s", line->indent);
2017		for (i = 0; i < line->numElements; i++) {
2018		/* Need to handle this, because we strip the quotes from
2019		* menuentry when read it. */
2020		if (line->type == LT_MENUENTRY && i == 1) {
2021		if (!isquote(*line->elements[i].item))
2022		log_message(f, "\'%s\'",
2023		line->elements[i].item);
2024		else
2025		log_message(f, "%s",
2026		line->elements[i].item);
2027		log_message(f, "%s", line->elements[i].indent);
2028
2029	if (!once)	continue;
2030	log_message(stderr, "DBG: command line: %s\n", saved_command_line);	}
2031	once = 1;
2032	fprintf(stderr, "DBG: Image entry failed: ");	log_message(f, "%s%s",
2033	vfprintf(stderr, fmt, argp);	line->elements[i].item,
2034	printEntry(entry, stderr);	line->elements[i].indent);
2035	va_end(argp);	}
2036		log_message(f, "\n");
2037		}
2038		}
2039
2040		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042		{
2043		static int once;
2044		va_list argp, argq;
2045
2046		va_start(argp, fmt);
2047
2048		va_copy(argq, argp);
2049		if (!once) {
2050		log_time(NULL);
2051		log_message(NULL, "command line: %s\n", saved_command_line);
2052		}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079	}	}
2080
2081	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1791  static int endswith(const char *s, char	Line 2091  static int endswith(const char *s, char
2091	return s[slen] == c;	return s[slen] == c;
2092	}	}
2093
2094	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int skipRemoved, int flags) {	int skipRemoved, int flags)
2096	struct singleLine * line;	{
2097	char * fullName;	struct singleLine *line;
2098	int i;	char *fullName;
2099	char * dev;	int i;
2100	char * rootspec;	char *dev;
2101	char * rootdev;	char *rootspec;
2102		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, 0, "marked to skip\n");
	return 0;
	}
2103
2104	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	if (skipRemoved && entry->skip) {
2105	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	notSuitablePrintf(entry, 0, "no line found\n");	return 0;
2107	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, 0, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2108
2109	if (flags & GRUBBY_BADIMAGE_OKAY) {	line =
2110	notSuitablePrintf(entry, 1, "\n");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111	return 1;	entry->lines);
2112	}	if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120		}
2121
2122	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2124	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2125	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2126
2127	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2128	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2129		rootspec = getRootSpecifier(line->elements[1].item);
2130		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132		beginswith(line->elements[1].item + rootspec_offset, '/');
2133		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135		if (access(fullName, R_OK)) {
2136		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137		return 0;
2138		}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144	} else {	} else {
2145	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2146	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
	*/
	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);
2147
2148	/* failed to find one */	if (line && line->numElements >= 2) {
2149	if (!line) {	dev = line->elements[1].item;
2150	notSuitablePrintf(entry, 0, "no line found\n");	} else {
2151	return 0;	/* didn't succeed in finding a LT_ROOT, let's try
2152	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154		*/
2155		line =
2156		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157		entry->lines);
2158
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2166	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2167	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2168	dev = line->elements[i].item + 5;	break;
2169	else {	if (i < line->numElements)
2170	notSuitablePrintf(entry, 0, "no root= entry found\n");	dev = line->elements[i].item + 5;
2171	/* it failed too...  can't find root= */	else {
2172	return 0;	notSuitablePrintf(entry, 0,
2173	}	"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
	}
2179
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2180	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2189	if (!rootdev) {	if (!rootdev) {
2190	notSuitablePrintf(entry, 0, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2191	return 0;	return 0;
2192	}	}
2193
2194	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195	notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2196	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2197	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2198	return 0;	free(rootdev);
2199	}	return 0;
2200		}
2201
2202	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203	notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2204	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2205	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2206	return 0;	free(rootdev);
2207	}	return 0;
2208		}
2209
2210	free(rootdev);	free(rootdev);
2211	notSuitablePrintf(entry, 1, "\n");	notSuitablePrintf(entry, 1, "\n");
2212
2213	return 1;	return 1;
2214	}	}
2215
2216	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2217	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2218	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2220	int * index) {	int *index)
2221	struct singleEntry * entry = NULL;	{
2222	struct singleLine * line;	struct singleEntry *entry = NULL;
2223	int i;	struct singleLine *line;
2224	char * chptr;	int i;
2225	char * rootspec = NULL;	char *chptr;
2226	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228
2229		if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	if (isdigit(*kernel)) {	if (*chptr) {
2241	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	/* can't parse it, bail */
2242		return NULL;
2243		}
2244
2245	i = 0;	indexVars[i + 1] = -1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2246
2247	if (*chptr) {	i = 0;
2248	/* can't parse it, bail */	if (index) {
2249	return NULL;	while (i < *index) {
2250	}	i++;
2251		if (indexVars[i] == -1)
2252		return NULL;
2253		}
2254		}
2255
2256	indexVars[i + 1] = -1;	entry = findEntryByIndex(config, indexVars[i]);
2257		if (!entry)
2258	i = 0;	return NULL;
2259	if (index) {
2260	while (i < *index) i++;	line =
2261	if (indexVars[i] == -1) return NULL;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262		LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269	}	}
2270
2271	entry = findEntryByIndex(config, indexVars[i]);	if (!strcmp(kernel, "DEFAULT")) {
2272	if (!entry) return NULL;	if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274		} else {
2275		entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2288	if (!line) return NULL;	if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	if (index) *index = indexVars[i];	if (entry && index)
2294	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2295	} else {	} else {
2296	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2297	if (entry && entry->skip)	i = *index;
2298	entry = NULL;	else
2299	else if (index)	i = 0;
	*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++;
	}
2300
2301	if (entry && index)	if (!strncmp(kernel, "TITLE=", 6)) {
2302	*index = i;	prefix = "";
2303	} else {	checkType = LT_TITLE | LT_MENUENTRY;
2304	if (index)	kernel += 6;
2305	i = *index;	}
	else
	i = 0;
2306
2307	if (!strncmp(kernel, "TITLE=", 6)) {	for (entry = findEntryByIndex(config, i); entry;
2308	prefix = "";	entry = entry->next, i++) {
2309	checkType = LT_TITLE|LT_MENUENTRY;	if (entry->skip)
2310	kernel += 6;	continue;
2311	}
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	checkType, kernel, entry);
2314	if (entry->skip) continue;
2315		/* check all the lines matching checkType */
2316	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318	/* check all the lines matching checkType */	if (entry->multiboot && checkType == LT_KERNEL)
2319	for (line = entry->lines; line; line = line->next) {	ct = LT_KERNEL | LT_KERNEL_EFI |
2320	enum lineType_e ct = checkType;	LT_MBMODULE | LT_HYPER |
2321	if (entry->multiboot && checkType == LT_KERNEL)	LT_KERNEL_16;
2322	ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER;	else if (checkType & LT_KERNEL)
2323	else if (checkType & LT_KERNEL)	ct = checkType | LT_KERNEL_EFI |
2324	ct = checkType | LT_KERNEL_EFI;	LT_KERNEL_16;
2325	line = getLineByType(ct, line);	line = getLineByType(ct, line);
2326	if (!line)	if (!line)
2327	break;  /* not found in this entry */	break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346	if (line && line->type != LT_MENUENTRY &&	/* make sure this entry has a kernel identifier; this skips
2347	line->numElements >= 2) {	* non-Linux boot entries (could find netbsd etc, though, which is
2348	rootspec = getRootSpecifier(line->elements[1].item);	* unfortunate)
2349	if (!strcmp(line->elements[1].item +	*/
2350	((rootspec != NULL) ? strlen(rootspec) : 0),	if (line
2351	kernel + strlen(prefix)))	&& getLineByType(LT_KERNEL | LT_HYPER |
2352	break;	LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355	}	}
	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! */
	}
2356
2357	if (index) *index = i;	if (index)
2358	}	*index = i;
2359		}
2360
2361	return entry;	return entry;
2362	}	}
2363
2364	struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title,	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	int * index) {	int *index)
2366	struct singleEntry * entry;	{
2367	struct singleLine * line;	struct singleEntry *entry;
2368	int i;	struct singleLine *line;
2369	char * newtitle;	int i;
2370		char *newtitle;
2371	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2372	if (index && i < *index)	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373	continue;	if (index && i < *index)
2374	line = getLineByType(LT_TITLE, entry->lines);	continue;
2375	if (!line)	line = getLineByType(LT_TITLE, entry->lines);
2376	line = getLineByType(LT_MENUENTRY, entry->lines);	if (!line)
2377	if (!line)	line = getLineByType(LT_MENUENTRY, entry->lines);
2378	continue;	if (!line)
2379	newtitle = grub2ExtractTitle(line);	continue;
2380	if (!newtitle)	newtitle = grub2ExtractTitle(line);
2381	continue;	if (!newtitle)
2382	if (!strcmp(title, newtitle))	continue;
2383	break;	if (!strcmp(title, newtitle))
2384	}	break;
2385		}
2386
2387	if (!entry)	if (!entry)
2388	return NULL;	return NULL;
2389
2390	if (index)	if (index)
2391	*index = i;	*index = i;
2392	return entry;	return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398	entry = cfg->entries;
2399	while (index && entry) {	entry = cfg->entries;
2400	entry = entry->next;	while (index && entry) {
2401	index--;	entry = entry->next;
2402	}	index--;
2403		}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 2071  struct singleEntry * findEntryByIndex(st	Line 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->cfi->defaultIsSaved) {
2419	if (cfg->cfi->getEnv) {	if (cfg->cfi->defaultIsSaved) {
2420	char *defTitle = cfg->cfi->getEnv(cfg->cfi, "saved_entry");	if (cfg->cfi->getEnv) {
2421	if (defTitle) {	char *defTitle =
2422	int index = 0;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423	if (isnumber(defTitle)) {	if (defTitle) {
2424	index = atoi(defTitle);	int index = 0;
2425	entry = findEntryByIndex(cfg, index);	if (isnumber(defTitle)) {
2426	} else {	index = atoi(defTitle);
2427	entry = findEntryByTitle(cfg, defTitle, &index);	entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449	}	}
	if (entry)
	cfg->defaultImage = index;
	}
	}
	} else if (cfg->defaultImage > -1) {
	entry = findEntryByIndex(cfg, cfg->defaultImage);
	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
	if (indexPtr) *indexPtr = cfg->defaultImage;
	return entry;
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return entry;	return entry;
2468	}	}
2469
2470	index++;	index++;
2471	}	}
2472
2473	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2474		_("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		struct singleEntry *entry;
	if (!image)
	return;
	/* check and see if we're removing the default image */
	if (isdigit(*image)) {
	entry = findEntryByPath(cfg, image, prefix, NULL);
	if(entry)
	entry->skip = 1;
	return;
	}
2504
2505	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2506	entry->skip = 1;	return;
	}
2507
2508	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2509	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2510	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2512	int i, j;	entry->skip = 1;
2513		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if ((index >= 0) && config->cfi->defaultIsIndex) {
	if (findEntryByIndex(config, index))
	config->defaultImage = index;
	else
	config->defaultImage = -1;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2514	}	}
	}
2515
2516	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	changes */	entry->skip = 1;
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2518	}	}
2519
2520	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	int j;	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524	if (config->fallbackImage == -1) return;	{
2525		struct singleEntry *bootEntry, *newDefault;
2526	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
	if (hasNew)
	config->fallbackImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2527
2528	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* handle the two cases where the user explictly picks the default
2529	struct singleLine * line;	* boot entry index as it would exist post-modification */
	char * root = NULL;
	int i;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2530
2531	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* Case 1: user chose to make the latest boot entry the default */
2532	printf("kernel=%s\n", line->elements[1].item);	if (newBootEntryIsDefault) {
2533	else	config->defaultImage = newBootEntryIndex;
2534	printf("kernel=%s%s\n", prefix, line->elements[1].item);	return;
2535		}
2536	if (line->numElements >= 3) {
2537	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2538	i = 2;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2539	while (i < line->numElements) {	&& config->cfi->defaultIsIndex) {
2540	if (!strncmp(line->elements[i].item, "root=", 5)) {	indexToVerify = newDefaultBootEntryIndex;
2541	root = line->elements[i].item + 5;
2542	} else {	/* user chose to make latest boot entry the default */
2543	printf("%s%s", line->elements[i].item,	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2544	line->elements[i].indent);	config->defaultImage = newBootEntryIndex;
2545	}	return;
2546		}
2547
2548	i++;	/* the user picks the default index based on the
2549	}	* order of the bootloader configuration after
2550	printf("\"\n");	* modification; ensure we are checking for the
2551	} else {	* existence of the correct entry */
2552	line = getLineByType(LT_KERNELARGS, entry->lines);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2553	if (line) {	if (!config->isModified)
2554	char * s;	indexToVerify--;
2555		}
2556
2557	printf("args=\"");	/* verify the user selected index will exist */
2558	i = 1;	if (findEntryByIndex(config, indexToVerify)) {
2559	while (i < line->numElements) {	config->defaultImage = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
2560	} else {	} else {
2561	s = line->elements[i].item;	config->defaultImage = NO_DEFAULT_ENTRY;
	printf("%s%s", s, line->elements[i].indent);
2562	}	}
2563
2564	i++;	return;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
2565	}	}
	}
	if (!root) {
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2566
2567	if (root) {	/* handle cases where the index value may shift */
	char * s = alloca(strlen(root) + 1);
	strcpy(s, root);
	if (s[strlen(s) - 1] == '"')
	s[strlen(s) - 1] = '\0';
	/* make sure the root doesn't have a trailing " */
	printf("root=%s\n", s);
	}
2568
2569	line = getLineByType(LT_INITRD|LT_INITRD_EFI, entry->lines);	/* check validity of existing default or first-entry-found
2570		selection */
2571		if (defaultKernelPath) {
2572		/* user requested first-entry-found */
2573		if (!findEntryByPath(config, defaultKernelPath,
2574		prefix, &firstKernelEntryIndex)) {
2575		/* don't change default if can't find match */
2576		config->defaultImage = NO_DEFAULT_ENTRY;
2577		return;
2578		}
2579
2580	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2581
2582	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2583	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2584
2585	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2586	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2587	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2588	} else {	config->defaultImage++;
2589	char * title;	}
2590	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2591	title = grub2ExtractTitle(line);	/* use pre-existing default entry */
2592	if (title)	currentLookupIndex = config->defaultImage;
	printf("title=%s\n", title);
	}
	}
2593
2594	int isSuseSystem(void) {	if (isAddingBootEntry
2595	const char * path;	&& (newBootEntryIndex <= config->defaultImage)) {
2596	const static char default_path[] = "/etc/SuSE-release";	config->defaultImage++;
2597
2598	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	if (config->isModified) {
2599	path = default_path;	currentLookupIndex++;
2600		}
2601		}
2602		}
2603
2604	if (!access(path, R_OK))	/* sanity check - is this entry index valid? */
2605	return 1;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	return 0;
	}
2606
2607	int isSuseGrubConf(const char * path) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2608	FILE * grubConf;	/* entry is to be skipped or is invalid */
2609	char * line = NULL;	if (isAddingBootEntry) {
2610	size_t len = 0, res = 0;	config->defaultImage = newBootEntryIndex;
2611		return;
2612	grubConf = fopen(path, "r");	}
2613	if (!grubConf) {	newDefault =
2614	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	findTemplate(config, prefix, &config->defaultImage, 1,
2615	return 0;	flags);
2616	}	if (!newDefault) {
2617		config->defaultImage = NO_DEFAULT_ENTRY;
2618		}
2619
2620	while ((res = getline(&line, &len, grubConf)) != -1) {	return;
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
2621	}	}
	}
2622
2623	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	currentLookupIndex--;
	path);
2624
2625	fclose(grubConf);	/* decrement index by the total number of entries deleted */
	free(line);
	return 0;
	}
2626
2627	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (indexToVerify = currentLookupIndex;
2628	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';
	}
2629
2630	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;
	}
	}
2631
2632	free(line);	if (bootEntry && bootEntry->skip) {
2633	fclose(grubConf);	config->defaultImage--;
2634	return 0;	}
2635		}
2636	}	}
2637
2638	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2639	FILE * grubConf;	{
2640	char * line = NULL;	struct singleEntry *entry, *entry2;
2641	size_t res = 0, len = 0;	int j;
2642	char * lastParamPtr = NULL;
2643	char * secLastParamPtr = NULL;	if (config->fallbackImage == -1)
2644	char installDeviceNumber = '\0';	return;
2645	char * bounds = NULL;
2646		entry = findEntryByIndex(config, config->fallbackImage);
2647	if (!path) return 1;	if (!entry || entry->skip) {
2648	if (!devicePtr) return 1;	config->fallbackImage = -1;
2649		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';
2650	}	}
2651
2652	lastParamPtr = bounds = line + res;	if (hasNew)
2653		config->fallbackImage++;
2654
2655		/* count the number of entries erased before this one */
2656		for (j = 0; j < config->fallbackImage; j++) {
2657		entry2 = findEntryByIndex(config, j);
2658		if (entry2->skip)
2659		config->fallbackImage--;
2660		}
2661		}
2662
2663	/* Last parameter in grub may be an optional IMAGE_DEVICE */	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2664	while (!isspace(*lastParamPtr))	{
2665	lastParamPtr--;	struct singleLine *line;
2666	lastParamPtr++;	char *root = NULL;
2667		int i;
2668		int j;
2669
2670	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2671
2672	if (lastParamPtr + 3 > bounds) {	line =
2673	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2674	fclose(grubConf);	entry->lines);
2675	free(line);	if (!line) {
2676	return 1;	printf("non linux entry\n");
2677		return;
2678	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2679
2680	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2681	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2682	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2683	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2684	while (!isspace(*secLastParamPtr))
2685	secLastParamPtr--;	if (line->numElements >= 3) {
2686	secLastParamPtr++;	printf("args=\"");
2687		i = 2;
2688	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2689	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2690	fclose(grubConf);	root = line->elements[i].item + 5;
2691	free(line);	} else {
2692	return 1;	printf("%s%s", line->elements[i].item,
2693	}	line->elements[i].indent);
2694	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2695	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2696	secLastParamPtr += 3;	i++;
2697	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2698	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
2699	} else {	} else {
2700	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2701		if (line) {
2702		char *s;
2703
2704		printf("args=\"");
2705		i = 1;
2706		while (i < line->numElements) {
2707		if (!strncmp
2708		(line->elements[i].item, "root=", 5)) {
2709		root = line->elements[i].item + 5;
2710		} else {
2711		s = line->elements[i].item;
2712
2713		printf("%s%s", s,
2714		line->elements[i].indent);
2715		}
2716
2717		i++;
2718		}
2719
2720		s = line->elements[i - 1].indent;
2721		printf("\"\n");
2722		}
2723	}	}
2724
2725	*devicePtr = malloc(6);	if (!root) {
2726	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2727	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2728	fclose(grubConf);	root = line->elements[1].item;
2729	free(line);	}
	return 0;
	}
2730
2731	free(line);	if (root) {
2732	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;
2733
2734	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2735	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2736	continue;	s[strlen(s) - 1] = '\0';
2737		/* make sure the root doesn't have a trailing " */
2738	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';
2739	}	}
2740
2741	devicePtr = line;	line =
2742	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2743		entry->lines);
2744
2745	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2746	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2747	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2748		else
2749		printf("initrd=%s", prefix);
2750
2751	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2752	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2753	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2754	devicePtr++;	printf("\n");
2755		}
2756
2757	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2758	break;	if (line) {
2759		printf("title=%s\n", line->elements[1].item);
2760		} else {
2761		char *title;
2762		line = getLineByType(LT_MENUENTRY, entry->lines);
2763		if (line) {
2764		title = grub2ExtractTitle(line);
2765		if (title)
2766		printf("title=%s\n", title);
2767		}
2768	}	}
	}
2769
2770	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2771	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2772	return 0;	if (!strncmp
2773		(prefix, line->elements[1].item, strlen(prefix)))
2774		printf("mbmodule%d=", j);
2775		else
2776		printf("mbmodule%d=%s", j, prefix);
2777
2778		for (i = 1; i < line->numElements; i++)
2779		printf("%s%s", line->elements[i].item,
2780		line->elements[i].indent);
2781		printf("\n");
2782		j++;
2783		}
2784		}
2785	}	}
2786
2787	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2788	char * grubDevice;	{
2789		const char *path;
2790		const static char default_path[] = "/etc/SuSE-release";
2791
2792	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2793	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);
2794
2795	free(grubDevice);	if (!access(path, R_OK))
2796	return 0;	return 1;
2797		return 0;
2798	}	}
2799
2800	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2801	/*	{
2802	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2803	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2804	* grub on that system.	size_t len = 0, res = 0;
2805	*/
2806	const char * path;	grubConf = fopen(path, "r");
2807	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2808		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2809	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2810	path = default_path;	return 0;
2811		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2812
2813	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2814	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2815	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2816	}	free(line);
2817		return 1;
2818		}
2819		}
2820
2821	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2822		path);
2823
2824		fclose(grubConf);
2825		free(line);
2826		return 0;
2827	}	}
2828
2829	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2830	FILE * in;	{
2831	char buf[1024];	FILE *grubConf;
2832	char * chptr;	char *line = NULL;
2833	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);
	}
2834
2835	fclose(in);	if (!path)
2836		return 1;
2837		if (!lbaPtr)
2838		return 1;
2839
2840	return 0;	grubConf = fopen(path, "r");
2841	}	if (!grubConf)
2842		return 1;
2843
2844	void dumpSysconfigGrub(void) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2845	char * boot = NULL;	if (line[res - 1] == '\n')
2846	int lba;	line[res - 1] = '\0';
2847		else if (len > res)
2848	if (isSuseSystem()) {	line[res] = '\0';
2849	if (parseSuseGrubConf(&lba, &boot)) {	else {
2850	free(boot);	line = realloc(line, res + 1);
2851	return;	line[res] = '\0';
2852	}	}
2853	} else {
2854	if (parseSysconfigGrub(&lba, &boot)) {	if (!strncmp(line, "setup", 5)) {
2855	free(boot);	if (strstr(line, "--force-lba")) {
2856	return;	*lbaPtr = 1;
2857		} else {
2858		*lbaPtr = 0;
2859		}
2860		dbgPrintf("lba: %i\n", *lbaPtr);
2861		break;
2862		}
2863	}	}
	}
2864
2865	if (lba) printf("lba\n");	free(line);
2866	if (boot) {	fclose(grubConf);
2867	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2868	}	}
2869
2870	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2871	const char * prefix) {	{
2872	int i = 0;	FILE *grubConf;
2873	struct singleEntry * entry;	char *line = NULL;
2874	struct singleLine * line;	size_t res = 0, len = 0;
2875		char *lastParamPtr = NULL;
2876	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2877	if (!entry) {	char installDeviceNumber = '\0';
2878	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);
	}
2879
2880	line = getLineByType(LT_LBA, config->theLines);	if (!path)
2881	if (line) printf("lba\n");	return 1;
2882	}	if (!devicePtr)
2883		return 1;
2884
2885	displayEntry(entry, prefix, i);	grubConf = fopen(path, "r");
2886		if (!grubConf)
2887		return 1;
2888
2889	i++;	while ((res = getline(&line, &len, grubConf)) != -1) {
2890	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	if (strncmp(line, "setup", 5))
2891	displayEntry(entry, prefix, i);	continue;
2892	i++;
2893	}	if (line[res - 1] == '\n')
2894		line[res - 1] = '\0';
2895		else if (len > res)
2896		line[res] = '\0';
2897		else {
2898		line = realloc(line, res + 1);
2899		line[res] = '\0';
2900		}
2901
2902	return 0;	lastParamPtr = bounds = line + res;
	}
2903
2904	struct singleLine * addLineTmpl(struct singleEntry * entry,	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2905	struct singleLine * tmplLine,	while (!isspace(*lastParamPtr))
2906	struct singleLine * prevLine,	lastParamPtr--;
2907	const char * val,	lastParamPtr++;
2908	struct configFileInfo * cfi)
2909	{	secLastParamPtr = lastParamPtr - 2;
2910	struct singleLine * newLine = lineDup(tmplLine);	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2911
2912	if (isEfi && cfi == &grub2ConfigType) {	if (lastParamPtr + 3 > bounds) {
2913	enum lineType_e old = newLine->type;	dbgPrintf("lastParamPtr going over boundary");
2914	newLine->type = preferredLineType(newLine->type, cfi);	fclose(grubConf);
2915	if (old != newLine->type)	free(line);
2916	newLine->elements[0].item = getKeyByType(newLine->type, cfi);	return 1;
2917	}	}
2918		if (!strncmp(lastParamPtr, "(hd", 3))
2919		lastParamPtr += 3;
2920		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2921
2922		/*
2923		* Second last parameter will decide wether last parameter is
2924		* an IMAGE_DEVICE or INSTALL_DEVICE
2925		*/
2926		while (!isspace(*secLastParamPtr))
2927		secLastParamPtr--;
2928		secLastParamPtr++;
2929
2930		if (secLastParamPtr + 3 > bounds) {
2931		dbgPrintf("secLastParamPtr going over boundary");
2932		fclose(grubConf);
2933		free(line);
2934		return 1;
2935		}
2936		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2937		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2938		secLastParamPtr += 3;
2939		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2940		installDeviceNumber = *secLastParamPtr;
2941		} else {
2942		installDeviceNumber = *lastParamPtr;
2943		}
2944
2945	if (val) {	*devicePtr = malloc(6);
2946	/* override the inherited value with our own.	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2947	* This is a little weak because it only applies to elements[1]	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2948	*/	fclose(grubConf);
2949	if (newLine->numElements > 1)	free(line);
2950	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);
	}
2951	}	}
	}
2952
2953	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	free(line);
2954	newLine->elements[0].item : "");	fclose(grubConf);
2955		return 1;
	if (!entry->lines) {
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
2956	}	}
2957
2958	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2959	struct singleLine *  addLine(struct singleEntry * entry,	{
2960	struct configFileInfo * cfi,	FILE *deviceMap;
2961	enum lineType_e type, char * defaultIndent,	char *line = NULL;
2962	const char * val) {	size_t res = 0, len = 0;
2963	struct singleLine * line, * prev;	char *devicePtr;
2964	struct keywordTypes * kw;	char *bounds = NULL;
2965	struct singleLine tmpl;	const char *path;
2966		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 = "";
	}
	}
2967
2968	/* The last non-empty line gives us the indention to us and the line	if (!device)
2969	to insert after. Note that comments are considered empty lines, which	return 1;
2970	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
2971	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;
	}
2972
2973	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2974	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;
	}
2975
2976	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
2977	}	deviceMap = fopen(path, "r");
2978		if (!deviceMap)
2979		return 1;
2980
2981		while ((res = getline(&line, &len, deviceMap)) != -1) {
2982		if (!strncmp(line, "#", 1))
2983		continue;
2984
2985		if (line[res - 1] == '\n')
2986		line[res - 1] = '\0';
2987		else if (len > res)
2988		line[res] = '\0';
2989		else {
2990		line = realloc(line, res + 1);
2991		line[res] = '\0';
2992		}
2993
2994	void removeLine(struct singleEntry * entry, struct singleLine * line) {	devicePtr = line;
2995	struct singleLine * prev;	bounds = line + res;
	int i;
2996
2997	for (i = 0; i < line->numElements; i++) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2998	free(line->elements[i].item);	devicePtr++;
2999	free(line->elements[i].indent);	dbgPrintf("device: %s\n", devicePtr);
3000	}
3001	free(line->elements);	if (!strncmp(devicePtr, device, strlen(device))) {
3002	free(line->indent);	devicePtr += strlen(device);
3003		while (isspace(*devicePtr)
3004		&& ((devicePtr + 1) <= bounds))
3005		devicePtr++;
3006
3007	if (line == entry->lines) {	*bootPtr = strdup(devicePtr);
3008	entry->lines = line->next;	break;
3009	} else {	}
3010	prev = entry->lines;	}
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3011
3012	free(line);	free(line);
3013		fclose(deviceMap);
3014		return 0;
3015	}	}
3016
3017	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3018	{	{
3019	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;
	}
3020
3021	line->elements = realloc(line->elements, (line->numElements + 1) *	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3022	sizeof(*line->elements));	dbgPrintf("error looking for grub installation device\n");
3023	memmove(&line->elements[insertHere+1],	else
3024	&line->elements[insertHere],	dbgPrintf("grubby installation device: %s\n", grubDevice);
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {
	/* move the end-of-line forward */
	line->elements[insertHere].indent =
	line->elements[insertHere-1].indent;
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
3025
3026	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3027		dbgPrintf("error looking for grub boot device\n");
3028		else
3029		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3030
3031	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3032	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3033	}	}
3034
3035	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3036	int i;	{
3037		/*
3038	/* sanity check */	* This SuSE grub configuration file at this location is not your
3039	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3040		* used to setup grub on that system.
3041	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3042	removeHere, line->elements[removeHere].item);	const char *path;
3043		const static char default_path[] = "/etc/grub.conf";
3044
3045	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3046		path = default_path;
3047
3048	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3049	/* 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);
	}
3050
3051	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3052	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3053	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3054		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;
3055	}	}
	}
3056
3057	if (!removeArgs) {	if (bootPtr) {
3058	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3059	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3060	}	}
	}
3061
3062	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	return 0;
3063	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	}
	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
	&& !multibootArgs);
3064
3065	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3066		{
3067		FILE *in;
3068		char buf[1024];
3069		char *chptr;
3070		char *start;
3071		char *param;
3072
3073	if (multibootArgs && !entry->multiboot)	in = fopen("/etc/sysconfig/grub", "r");
3074	continue;	if (!in)
3075		return 1;
3076
3077	/* Determine where to put the args.  If this config supports	if (lbaPtr)
3078	* LT_KERNELARGS, use that.  Otherwise use	*lbaPtr = 0;
3079	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	if (bootPtr)
3080	*/	*bootPtr = NULL;
3081	if (useKernelArgs) {
3082	line = getLineByType(LT_KERNELARGS, entry->lines);	while (fgets(buf, sizeof(buf), in)) {
3083	if (!line) {	start = buf;
3084	/* no LT_KERNELARGS, need to add it */	while (isspace(*start))
3085	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	start++;
3086	cfg->secondaryIndent, NULL);	if (*start == '#')
3087	}	continue;
3088	firstElement = 1;
3089		chptr = strchr(start, '=');
3090	} else if (multibootArgs) {	if (!chptr)
3091	line = getLineByType(LT_HYPER, entry->lines);	continue;
3092	if (!line) {	chptr--;
3093	/* a multiboot entry without LT_HYPER? */	while (*chptr && isspace(*chptr))
3094	continue;	chptr--;
3095	}	chptr++;
3096	firstElement = 2;	*chptr = '\0';
3097
3098		param = chptr + 1;
3099		while (*param && isspace(*param))
3100		param++;
3101		if (*param == '=') {
3102		param++;
3103		while (*param && isspace(*param))
3104		param++;
3105		}
3106
3107	} else {	chptr = param;
3108	line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI, entry->lines);	while (*chptr && !isspace(*chptr))
3109	if (!line) {	chptr++;
3110	/* no LT_KERNEL or LT_MBMODULE in this entry? */	*chptr = '\0';
3111	continue;
3112	}	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3113	firstElement = 2;	*lbaPtr = 1;
3114		else if (!strcmp(start, "boot") && bootPtr)
3115		*bootPtr = strdup(param);
3116	}	}
3117
3118	/* 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;
	}
	}
3119
3120	if (i < line->numElements && doreplace) {	return 0;
3121	/* direct replacement */	}
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
3122
3123	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	void dumpSysconfigGrub(void)
3124	/* root= replacement */	{
3125	rootLine = getLineByType(LT_ROOT, entry->lines);	char *boot = NULL;
3126	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);
	}
	}
3127
3128	else {	if (isSuseSystem()) {
3129	/* insert/append */	if (parseSuseGrubConf(&lba, &boot)) {
3130	insertElement(line, *arg, i, cfg->cfi);	free(boot);
3131	usedElements = realloc(usedElements, line->numElements *	return;
3132	sizeof(*usedElements));	}
3133	memmove(&usedElements[i + 1], &usedElements[i],	} else {
3134	line->numElements - i - 1);	if (parseSysconfigGrub(&lba, &boot)) {
3135	usedElements[i] = 1;	free(boot);
3136		return;
3137	/* 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);
3138	}	}
	}
3139
3140	free(newArgs);	if (lba)
3141	free(oldArgs);	printf("lba\n");
3142		if (boot) {
3143	return 0;	printf("boot=%s\n", boot);
3144		free(boot);
3145		}
3146	}	}
3147
3148	int updateImage(struct grubConfig * cfg, const char * image,	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3149	const char * prefix, const char * addArgs,	{
3150	const char * removeArgs,	int i = 0;
3151	const char * addMBArgs, const char * removeMBArgs) {	struct singleEntry *entry;
3152	int rc = 0;	struct singleLine *line;
3153
3154	if (!image) return rc;	entry = findEntryByPath(config, kernel, prefix, &i);
3155		if (!entry) {
3156	/* 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)
3157	return 1;	return 1;
3158	}	}
3159
3160	break;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3161	}	be a better way */
3162		if (config->cfi == &grubConfigType) {
3163	return 0;	dumpSysconfigGrub();
3164	}	} else {
3165		line = getLineByType(LT_BOOT, config->theLines);
3166	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (line && line->numElements >= 1) {
3167	int fd;	printf("boot=%s\n", line->elements[1].item);
3168	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;
	}
3169
3170	if (read(fd, bootSect, 512) != 512) {	line = getLineByType(LT_LBA, config->theLines);
3171	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (line)
3172	device, strerror(errno));	printf("lba\n");
3173	return 1;	}
	}
	close(fd);
3174
3175	/* first three bytes should match, a jmp short should be in there */	displayEntry(entry, prefix, i);
	if (memcmp(boot, bootSect, 3))
	return 0;
3176
3177	if (boot[1] == JMP_SHORT_OPCODE) {	i++;
3178	offset = boot[2] + 2;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3179	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	displayEntry(entry, prefix, i);
3180	offset = (boot[3] << 8) + boot[2] + 2;	i++;
3181	} 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;
	}
3182
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3183	return 0;	return 0;
	return 2;
3184	}	}
3185
3186	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3187	int fd;	struct singleLine *tmplLine,
3188	char buf[65536];	struct singleLine *prevLine,
3189	char * end;	const char *val, struct configFileInfo *cfi)
3190	char * chptr;	{
3191	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 */
	if (!strncmp(mdDev, "/dev/", 5))
	mdDev += 5;
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
	return 2;
	}
	rc = read(fd, buf, sizeof(buf) - 1);
	if (rc < 0 || rc == (sizeof(buf) - 1)) {
	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3192
3193	chptr = buf;	if (isEfi && cfi == &grub2ConfigType) {
3194	while (*chptr) {	enum lineType_e old = newLine->type;
3195	end = strchr(chptr, '\n');	newLine->type = preferredLineType(newLine->type, cfi);
3196	if (!end) break;	if (old != newLine->type)
3197	*end = '\0';	newLine->elements[0].item =
3198		getKeyByType(newLine->type, cfi);
3199		}
3200
3201	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	if (val) {
3202	chptr[strlen(mdDev)] == ' ') {	/* override the inherited value with our own.
3203		* This is a little weak because it only applies to elements[1]
3204		*/
3205		if (newLine->numElements > 1)
3206		removeElement(newLine, 1);
3207		insertElement(newLine, val, 1, cfi);
3208
3209		/* but try to keep the rootspec from the template... sigh */
3210		if (tmplLine->
3211		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3212		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3213		LT_INITRD_16)) {
3214		char *rootspec =
3215		getRootSpecifier(tmplLine->elements[1].item);
3216		if (rootspec != NULL) {
3217		free(newLine->elements[1].item);
3218		newLine->elements[1].item =
3219		sdupprintf("%s%s", rootspec, val);
3220		}
3221		}
3222		}
3223
3224	/* found the device */	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3225	while (*chptr && *chptr != ':') chptr++;	newLine->elements[0].item : "");
	chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3226
3227	/*  we're good to go */	if (!entry->lines) {
3228	return 2;	/* first one on the list */
3229		entry->lines = newLine;
3230		} else if (prevLine) {
3231		/* add after prevLine */
3232		newLine->next = prevLine->next;
3233		prevLine->next = newLine;
3234	}	}
3235
3236	chptr = end + 1;	return newLine;
	}
	fprintf(stderr,
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3237	}	}
3238
3239	int checkForLilo(struct grubConfig * config) {	/* val may be NULL */
3240	int fd;	struct singleLine *addLine(struct singleEntry *entry,
3241	unsigned char boot[512];	struct configFileInfo *cfi,
3242	struct singleLine * line;	enum lineType_e type, char *defaultIndent,
3243		const char *val)
3244	for (line = config->theLines; line; line = line->next)	{
3245	if (line->type == LT_BOOT) break;	struct singleLine *line, *prev;
3246		struct keywordTypes *kw;
3247	if (!line) {	struct singleLine tmpl;
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3248
3249	if (line->numElements != 2) return 1;	/* NB: This function shouldn't allocate items on the heap, rather on
3250		* the stack since it calls addLineTmpl which will make copies.
3251		*/
3252		if (type == LT_TITLE && cfi->titleBracketed) {
3253		/* we're doing a bracketed title (zipl) */
3254		tmpl.type = type;
3255		tmpl.numElements = 1;
3256		tmpl.elements = alloca(sizeof(*tmpl.elements));
3257		tmpl.elements[0].item = alloca(strlen(val) + 3);
3258		sprintf(tmpl.elements[0].item, "[%s]", val);
3259		tmpl.elements[0].indent = "";
3260		val = NULL;
3261		} else if (type == LT_MENUENTRY) {
3262		char *lineend = "--class gnu-linux --class gnu --class os {";
3263		if (!val) {
3264		fprintf(stderr,
3265		"Line type LT_MENUENTRY requires a value\n");
3266		abort();
3267		}
3268		kw = getKeywordByType(type, cfi);
3269		if (!kw) {
3270		fprintf(stderr,
3271		"Looking up keyword for unknown type %d\n",
3272		type);
3273		abort();
3274		}
3275		tmpl.indent = "";
3276		tmpl.type = type;
3277		tmpl.numElements = 3;
3278		tmpl.elements =
3279		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3280		tmpl.elements[0].item = kw->key;
3281		tmpl.elements[0].indent = alloca(2);
3282		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3283		tmpl.elements[1].item = (char *)val;
3284		tmpl.elements[1].indent = alloca(2);
3285		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3286		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3287		strcpy(tmpl.elements[2].item, lineend);
3288		tmpl.elements[2].indent = "";
3289		} else {
3290		kw = getKeywordByType(type, cfi);
3291		if (!kw) {
3292		fprintf(stderr,
3293		"Looking up keyword for unknown type %d\n",
3294		type);
3295		abort();
3296		}
3297		tmpl.type = type;
3298		tmpl.numElements = val ? 2 : 1;
3299		tmpl.elements =
3300		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3301		tmpl.elements[0].item = kw->key;
3302		tmpl.elements[0].indent = alloca(2);
3303		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3304		if (val) {
3305		tmpl.elements[1].item = (char *)val;
3306		tmpl.elements[1].indent = "";
3307		}
3308		}
3309
3310	fd = open("/boot/boot.b", O_RDONLY);	/* The last non-empty line gives us the indention to us and the line
3311	if (fd < 0) {	* to insert after. Note that comments are considered empty lines,
3312	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	* which may not be ideal? If there are no lines or we are looking at
3313	"/boot/boot.b", strerror(errno));	* the first line, we use defaultIndent (the first line is normally
3314	return 1;	* indented differently from the rest) */
3315	}	for (line = entry->lines, prev = NULL; line; line = line->next) {
3316		if (line->numElements)
3317		prev = line;
3318		/* fall back on the last line if prev isn't otherwise set */
3319		if (!line->next && !prev)
3320		prev = line;
3321		}
3322
3323		struct singleLine *menuEntry;
3324		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3325		if (tmpl.type == LT_ENTRY_END) {
3326		if (menuEntry)
3327		tmpl.indent = menuEntry->indent;
3328		else
3329		tmpl.indent = defaultIndent ? : "";
3330		} else if (tmpl.type != LT_MENUENTRY) {
3331		if (menuEntry)
3332		tmpl.indent = "\t";
3333		else if (prev == entry->lines)
3334		tmpl.indent = defaultIndent ? : "";
3335		else
3336		tmpl.indent = prev->indent;
3337		}
3338
3339	if (read(fd, boot, 512) != 512) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3340	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
3341	"/boot/boot.b", strerror(errno));
3342	return 1;	void removeLine(struct singleEntry *entry, struct singleLine *line)
3343	}	{
3344	close(fd);	struct singleLine *prev;
3345		int i;
3346
3347	if (!strncmp("/dev/md", line->elements[1].item, 7))	for (i = 0; i < line->numElements; i++) {
3348	return checkLiloOnRaid(line->elements[1].item, boot);	free(line->elements[i].item);
3349		free(line->elements[i].indent);
3350		}
3351		free(line->elements);
3352		free(line->indent);
3353
3354	return checkDeviceBootloader(line->elements[1].item, boot);	if (line == entry->lines) {
3355		entry->lines = line->next;
3356		} else {
3357		prev = entry->lines;
3358		while (prev->next != line)
3359		prev = prev->next;
3360		prev->next = line->next;
3361		}
3362
3363		free(line);
3364	}	}
3365
3366	int checkForGrub2(struct grubConfig * config) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3367	if (!access("/etc/grub.d/", R_OK))	{
3368	return 2;	struct singleLine newLine = {
3369		.indent = tmplLine->indent,
3370		.type = tmplLine->type,
3371		.next = tmplLine->next,
3372		};
3373		int firstQuotedItem = -1;
3374		int quoteLen = 0;
3375		int j;
3376		int element = 0;
3377		char *c;
3378
3379	return 1;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3380		strcpy(c, tmplLine->elements[0].item);
3381		insertElement(&newLine, c, element++, cfi);
3382		free(c);
3383		c = NULL;
3384
3385		for (j = 1; j < tmplLine->numElements; j++) {
3386		if (firstQuotedItem == -1) {
3387		quoteLen += strlen(tmplLine->elements[j].item);
3388
3389		if (isquote(tmplLine->elements[j].item[0])) {
3390		firstQuotedItem = j;
3391		quoteLen +=
3392		strlen(tmplLine->elements[j].indent);
3393		} else {
3394		c = malloc(quoteLen + 1);
3395		strcpy(c, tmplLine->elements[j].item);
3396		insertElement(&newLine, c, element++, cfi);
3397		free(c);
3398		quoteLen = 0;
3399		}
3400		} else {
3401		int itemlen = strlen(tmplLine->elements[j].item);
3402		quoteLen += itemlen;
3403		quoteLen += strlen(tmplLine->elements[j].indent);
3404
3405		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3406		c = malloc(quoteLen + 1);
3407		c[0] = '\0';
3408		for (int i = firstQuotedItem; i < j + 1; i++) {
3409		strcat(c, tmplLine->elements[i].item);
3410		strcat(c, tmplLine->elements[i].indent);
3411		}
3412		insertElement(&newLine, c, element++, cfi);
3413		free(c);
3414
3415		firstQuotedItem = -1;
3416		quoteLen = 0;
3417		}
3418		}
3419		}
3420		while (tmplLine->numElements)
3421		removeElement(tmplLine, 0);
3422		if (tmplLine->elements)
3423		free(tmplLine->elements);
3424
3425		tmplLine->numElements = newLine.numElements;
3426		tmplLine->elements = newLine.elements;
3427	}	}
3428
3429	int checkForGrub(struct grubConfig * config) {	static void insertElement(struct singleLine *line,
3430	int fd;	const char *item, int insertHere,
3431	unsigned char bootSect[512];	struct configFileInfo *cfi)
3432	char * boot;	{
3433	int onSuse = isSuseSystem();	struct keywordTypes *kw;
3434		char indent[2] = "";
3435
3436		/* sanity check */
3437		if (insertHere > line->numElements) {
3438		dbgPrintf
3439		("insertElement() adjusting insertHere from %d to %d\n",
3440		insertHere, line->numElements);
3441		insertHere = line->numElements;
3442		}
3443
3444		line->elements = realloc(line->elements, (line->numElements + 1) *
3445		sizeof(*line->elements));
3446		memmove(&line->elements[insertHere + 1],
3447		&line->elements[insertHere],
3448		(line->numElements - insertHere) * sizeof(*line->elements));
3449		line->elements[insertHere].item = strdup(item);
3450
3451		kw = getKeywordByType(line->type, cfi);
3452
3453		if (line->numElements == 0) {
3454		indent[0] = '\0';
3455		} else if (insertHere == 0) {
3456		indent[0] = kw->nextChar;
3457		} else if (kw->separatorChar != '\0') {
3458		indent[0] = kw->separatorChar;
3459		} else {
3460		indent[0] = ' ';
3461		}
3462
3463	if (onSuse) {	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3464	if (parseSuseGrubConf(NULL, &boot))	/* move the end-of-line forward */
3465	return 0;	line->elements[insertHere].indent =
3466	} else {	line->elements[insertHere - 1].indent;
3467	if (parseSysconfigGrub(NULL, &boot))	line->elements[insertHere - 1].indent = strdup(indent);
3468	return 0;	} else {
3469	}	line->elements[insertHere].indent = strdup(indent);
3470		}
3471
3472	/* assume grub is not installed -- not an error condition */	line->numElements++;
	if (!boot)
	return 0;
3473
3474	fd = open("/boot/grub/stage1", O_RDONLY);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3475	if (fd < 0)	line->elements[0].item,
3476	/* this doesn't exist if grub hasn't been installed */	line->elements[insertHere].item,
3477	return 0;	line->elements[insertHere].indent, insertHere);
3478		}
3479
3480	if (read(fd, bootSect, 512) != 512) {	static void removeElement(struct singleLine *line, int removeHere)
3481	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3482	"/boot/grub/stage1", strerror(errno));	int i;
	close(fd);
	return 1;
	}
	close(fd);
3483
3484	/* The more elaborate checks do not work on SuSE. The checks done	/* sanity check */
3485	* seem to be reasonble (at least for now), so just return success	if (removeHere >= line->numElements)
3486	*/	return;
3487	if (onSuse)
3488	return 2;	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3489		removeHere, line->elements[removeHere].item);
3490
3491		free(line->elements[removeHere].item);
3492
3493		if (removeHere > 1) {
3494		/* previous argument gets this argument's post-indentation */
3495		free(line->elements[removeHere - 1].indent);
3496		line->elements[removeHere - 1].indent =
3497		line->elements[removeHere].indent;
3498		} else {
3499		free(line->elements[removeHere].indent);
3500		}
3501
3502	return checkDeviceBootloader(boot, bootSect);	/* now collapse the array, but don't bother to realloc smaller */
3503		for (i = removeHere; i < line->numElements - 1; i++)
3504		line->elements[i] = line->elements[i + 1];
3505
3506		line->numElements--;
3507	}	}
3508
3509	int checkForExtLinux(struct grubConfig * config) {	int argMatch(const char *one, const char *two)
3510	int fd;	{
3511	unsigned char bootSect[512];	char *first, *second;
3512	char * boot;	char *chptr;
	char executable[] = "/boot/extlinux/extlinux";
3513
3514	printf("entered: checkForExtLinux()\n");	first = strcpy(alloca(strlen(one) + 1), one);
3515		second = strcpy(alloca(strlen(two) + 1), two);
3516
3517	if (parseSysconfigGrub(NULL, &boot))	chptr = strchr(first, '=');
3518	return 0;	if (chptr)
3519		*chptr = '\0';
3520
3521		chptr = strchr(second, '=');
3522		if (chptr)
3523		*chptr = '\0';
3524
3525		return strcmp(first, second);
3526		}
3527
3528		int updateActualImage(struct grubConfig *cfg, const char *image,
3529		const char *prefix, const char *addArgs,
3530		const char *removeArgs, int multibootArgs)
3531		{
3532		struct singleEntry *entry;
3533		struct singleLine *line, *rootLine;
3534		int index = 0;
3535		int i, k;
3536		const char **newArgs, **oldArgs;
3537		const char **arg;
3538		int useKernelArgs, useRoot;
3539		int firstElement;
3540		int *usedElements;
3541		int doreplace;
3542
3543		if (!image)
3544		return 0;
3545
3546		if (!addArgs) {
3547		newArgs = malloc(sizeof(*newArgs));
3548		*newArgs = NULL;
3549		} else {
3550		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3551		fprintf(stderr,
3552		_("grubby: error separating arguments '%s'\n"),
3553		addArgs);
3554		return 1;
3555		}
3556		}
3557
3558		if (!removeArgs) {
3559		oldArgs = malloc(sizeof(*oldArgs));
3560		*oldArgs = NULL;
3561		} else {
3562		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3563		fprintf(stderr,
3564		_("grubby: error separating arguments '%s'\n"),
3565		removeArgs);
3566		free(newArgs);
3567		return 1;
3568		}
3569		}
3570
3571		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3572		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3573
3574		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3575		&& !multibootArgs);
3576
3577		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3578
3579		if (multibootArgs && !entry->multiboot)
3580		continue;
3581
3582		/* Determine where to put the args.  If this config supports
3583		* LT_KERNELARGS, use that.  Otherwise use
3584		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3585		*/
3586		if (useKernelArgs) {
3587		line = getLineByType(LT_KERNELARGS, entry->lines);
3588		if (!line) {
3589		/* no LT_KERNELARGS, need to add it */
3590		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3591		cfg->secondaryIndent, NULL);
3592		}
3593		firstElement = 1;
3594
3595		} else if (multibootArgs) {
3596		line = getLineByType(LT_HYPER, entry->lines);
3597		if (!line) {
3598		/* a multiboot entry without LT_HYPER? */
3599		continue;
3600		}
3601		firstElement = 2;
3602
3603		} else {
3604		line =
3605		getLineByType(LT_KERNEL | LT_MBMODULE |
3606		LT_KERNEL_EFI | LT_KERNEL_16,
3607		entry->lines);
3608		if (!line) {
3609		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3610		continue;
3611		}
3612		firstElement = 2;
3613		}
3614
3615		/* handle the elilo case which does:
3616		*   append="hypervisor args -- kernel args"
3617		*/
3618		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3619		/* this is a multiboot entry, make sure there's
3620		* -- on the args line
3621		*/
3622		for (i = firstElement; i < line->numElements; i++) {
3623		if (!strcmp(line->elements[i].item, "--"))
3624		break;
3625		}
3626		if (i == line->numElements) {
3627		/* assume all existing args are kernel args,
3628		* prepend -- to make it official
3629		*/
3630		insertElement(line, "--", firstElement,
3631		cfg->cfi);
3632		i = firstElement;
3633		}
3634		if (!multibootArgs) {
3635		/* kernel args start after the -- */
3636		firstElement = i + 1;
3637		}
3638		} else if (cfg->cfi->mbConcatArgs) {
3639		/* this is a non-multiboot entry, remove hyper args */
3640		for (i = firstElement; i < line->numElements; i++) {
3641		if (!strcmp(line->elements[i].item, "--"))
3642		break;
3643		}
3644		if (i < line->numElements) {
3645		/* remove args up to -- */
3646		while (strcmp
3647		(line->elements[firstElement].item,
3648		"--"))
3649		removeElement(line, firstElement);
3650		/* remove -- */
3651		removeElement(line, firstElement);
3652		}
3653		}
3654
3655		usedElements = calloc(line->numElements, sizeof(*usedElements));
3656
3657		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3658
3659		doreplace = 1;
3660		for (i = firstElement; i < line->numElements; i++) {
3661		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3662		!strcmp(line->elements[i].item, "--")) {
3663		/* reached the end of hyper args, insert here */
3664		doreplace = 0;
3665		break;
3666		}
3667		if (usedElements[i])
3668		continue;
3669		if (!argMatch(line->elements[i].item, *arg)) {
3670		usedElements[i] = 1;
3671		break;
3672		}
3673		}
3674
3675		if (i < line->numElements && doreplace) {
3676		/* direct replacement */
3677		free(line->elements[i].item);
3678		line->elements[i].item = strdup(*arg);
3679
3680		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3681		/* root= replacement */
3682		rootLine = getLineByType(LT_ROOT, entry->lines);
3683		if (rootLine) {
3684		free(rootLine->elements[1].item);
3685		rootLine->elements[1].item =
3686		strdup(*arg + 5);
3687		} else {
3688		rootLine =
3689		addLine(entry, cfg->cfi, LT_ROOT,
3690		cfg->secondaryIndent,
3691		*arg + 5);
3692		}
3693		}
3694
3695		else {
3696		/* insert/append */
3697		insertElement(line, *arg, i, cfg->cfi);
3698		usedElements =
3699		realloc(usedElements,
3700		line->numElements *
3701		sizeof(*usedElements));
3702		memmove(&usedElements[i + 1], &usedElements[i],
3703		line->numElements - i - 1);
3704		usedElements[i] = 1;
3705
3706		/* if we updated a root= here even though
3707		* there is a LT_ROOT available we need to
3708		* remove the LT_ROOT entry (this will happen
3709		* if we switch from a device to a label) */
3710		if (useRoot && !strncmp(*arg, "root=", 5)) {
3711		rootLine =
3712		getLineByType(LT_ROOT,
3713		entry->lines);
3714		if (rootLine)
3715		removeLine(entry, rootLine);
3716		}
3717		}
3718		}
3719
3720		free(usedElements);
3721
3722		for (arg = oldArgs; *arg; arg++) {
3723		for (i = firstElement; i < line->numElements; i++) {
3724		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3725		!strcmp(line->elements[i].item, "--"))
3726		/* reached the end of hyper args, stop here */
3727		break;
3728		if (!argMatch(line->elements[i].item, *arg)) {
3729		removeElement(line, i);
3730		break;
3731		}
3732		}
3733		/* handle removing LT_ROOT line too */
3734		if (useRoot && !strncmp(*arg, "root=", 5)) {
3735		rootLine = getLineByType(LT_ROOT, entry->lines);
3736		if (rootLine)
3737		removeLine(entry, rootLine);
3738		}
3739		}
3740
3741		if (line->numElements == 1) {
3742		/* don't need the line at all (note it has to be a
3743		LT_KERNELARGS for this to happen */
3744		removeLine(entry, line);
3745		}
3746		}
3747
3748		free(newArgs);
3749		free(oldArgs);
3750
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3751	return 0;	return 0;
3752		}
3753
3754		int updateImage(struct grubConfig *cfg, const char *image,
3755		const char *prefix, const char *addArgs,
3756		const char *removeArgs,
3757		const char *addMBArgs, const char *removeMBArgs)
3758		{
3759		int rc = 0;
3760
3761		if (!image)
3762		return rc;
3763
3764		/* update the main args first... */
3765		if (addArgs || removeArgs)
3766		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3767		0);
3768		if (rc)
3769		return rc;
3770
3771		/* and now any multiboot args */
3772		if (addMBArgs || removeMBArgs)
3773		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3774		removeMBArgs, 1);
3775		return rc;
3776		}
3777
3778		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3779		const char *image, const char *prefix, const char *initrd,
3780		const char *title)
3781		{
3782		struct singleEntry *entry;
3783		struct singleLine *line, *kernelLine, *endLine = NULL;
3784		int index = 0;
3785
3786		if (!image)
3787		return 0;
3788
3789		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3790		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3791		if (!kernelLine)
3792		continue;
3793
3794		/* if title is supplied, the entry's title must match it. */
3795		if (title) {
3796		char *linetitle;
3797
3798		line =
3799		getLineByType(LT_TITLE | LT_MENUENTRY,
3800		entry->lines);
3801		if (!line)
3802		continue;
3803
3804		linetitle = extractTitle(cfg, line);
3805		if (!linetitle)
3806		continue;
3807		if (strcmp(title, linetitle)) {
3808		free(linetitle);
3809		continue;
3810		}
3811		free(linetitle);
3812		}
3813
3814		if (prefix) {
3815		int prefixLen = strlen(prefix);
3816		if (!strncmp(initrd, prefix, prefixLen))
3817		initrd += prefixLen;
3818		}
3819		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3820		if (endLine)
3821		removeLine(entry, endLine);
3822		line =
3823		addLine(entry, cfg->cfi,
3824		preferredLineType(LT_MBMODULE, cfg->cfi),
3825		kernelLine->indent, initrd);
3826		if (!line)
3827		return 1;
3828		if (endLine) {
3829		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3830		if (!line)
3831		return 1;
3832		}
3833
3834		break;
3835		}
3836
	fd = open(executable, O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3837	return 0;	return 0;
3838		}
3839
3840	if (read(fd, bootSect, 512) != 512) {	int updateInitrd(struct grubConfig *cfg, const char *image,
3841	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *prefix, const char *initrd, const char *title)
3842	executable, strerror(errno));	{
3843	return 1;	struct singleEntry *entry;
3844	}	struct singleLine *line, *kernelLine, *endLine = NULL;
3845	close(fd);	int index = 0;
3846
3847		if (!image)
3848		return 0;
3849
3850		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3851		kernelLine =
3852		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3853		entry->lines);
3854		if (!kernelLine)
3855		continue;
3856
3857		/* if title is supplied, the entry's title must match it. */
3858		if (title) {
3859		char *linetitle;
3860
3861		line =
3862		getLineByType(LT_TITLE | LT_MENUENTRY,
3863		entry->lines);
3864		if (!line)
3865		continue;
3866
3867		linetitle = extractTitle(cfg, line);
3868		if (!linetitle)
3869		continue;
3870		if (strcmp(title, linetitle)) {
3871		free(linetitle);
3872		continue;
3873		}
3874		free(linetitle);
3875		}
3876
3877	return checkDeviceBootloader(boot, bootSect);	line =
3878		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3879		entry->lines);
3880		if (line)
3881		removeLine(entry, line);
3882		if (prefix) {
3883		int prefixLen = strlen(prefix);
3884		if (!strncmp(initrd, prefix, prefixLen))
3885		initrd += prefixLen;
3886		}
3887		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3888		if (endLine)
3889		removeLine(entry, endLine);
3890		enum lineType_e lt;
3891		switch (kernelLine->type) {
3892		case LT_KERNEL:
3893		lt = LT_INITRD;
3894		break;
3895		case LT_KERNEL_EFI:
3896		lt = LT_INITRD_EFI;
3897		break;
3898		case LT_KERNEL_16:
3899		lt = LT_INITRD_16;
3900		break;
3901		default:
3902		lt = preferredLineType(LT_INITRD, cfg->cfi);
3903		}
3904		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3905		if (!line)
3906		return 1;
3907		if (endLine) {
3908		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3909		if (!line)
3910		return 1;
3911		}
3912
3913		break;
3914		}
3915
3916		return 0;
3917	}	}
3918
3919	int checkForYaboot(struct grubConfig * config) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3920	/*	{
3921	* This is a simplistic check that we consider good enough for own puporses	int fd;
3922	*	unsigned char bootSect[512];
3923	* If we were to properly check if yaboot is *installed* we'd need to:	int offset;
3924	* 1) get the system boot device (LT_BOOT)
3925	* 2) considering it's a raw filesystem, check if the yaboot binary matches	fd = open(device, O_RDONLY);
3926	*    the content on the boot device	if (fd < 0) {
3927	* 3) if not, copy the binary to a temporary file and run "addnote" on it	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3928	* 4) check again if binary and boot device contents match	device, strerror(errno));
3929	*/	return 1;
3930	if (!access("/etc/yaboot.conf", R_OK))	}
3931
3932		if (read(fd, bootSect, 512) != 512) {
3933		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3934		device, strerror(errno));
3935		return 1;
3936		}
3937		close(fd);
3938
3939		/* first three bytes should match, a jmp short should be in there */
3940		if (memcmp(boot, bootSect, 3))
3941		return 0;
3942
3943		if (boot[1] == JMP_SHORT_OPCODE) {
3944		offset = boot[2] + 2;
3945		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3946		offset = (boot[3] << 8) + boot[2] + 2;
3947		} else if (boot[0] == JMP_SHORT_OPCODE) {
3948		offset = boot[1] + 2;
3949		/*
3950		* it looks like grub, when copying stage1 into the mbr,
3951		* patches stage1 right after the JMP location, replacing
3952		* other instructions such as JMPs for NOOPs. So, relax the
3953		* check a little bit by skipping those different bytes.
3954		*/
3955		if ((bootSect[offset + 1] == NOOP_OPCODE)
3956		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3957		offset = offset + 3;
3958		}
3959		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3960		offset = (boot[2] << 8) + boot[1] + 2;
3961		} else {
3962		return 0;
3963		}
3964
3965		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3966		return 0;
3967
3968	return 2;	return 2;
3969		}
3970
3971		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3972		{
3973		int fd;
3974		char buf[65536];
3975		char *end;
3976		char *chptr;
3977		char *chptr2;
3978		int rc;
3979
3980		/* it's on raid; we need to parse /proc/mdstat and check all of the
3981		*raw* devices listed in there */
3982
3983		if (!strncmp(mdDev, "/dev/", 5))
3984		mdDev += 5;
3985
3986		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3987		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3988		strerror(errno));
3989		return 2;
3990		}
3991
3992		rc = read(fd, buf, sizeof(buf) - 1);
3993		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3994		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3995		strerror(errno));
3996		close(fd);
3997		return 2;
3998		}
3999		close(fd);
4000		buf[rc] = '\0';
4001
4002		chptr = buf;
4003		while (*chptr) {
4004		end = strchr(chptr, '\n');
4005		if (!end)
4006		break;
4007		*end = '\0';
4008
4009		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4010		chptr[strlen(mdDev)] == ' ') {
4011
4012		/* found the device */
4013		while (*chptr && *chptr != ':')
4014		chptr++;
4015		chptr++;
4016		while (*chptr && isspace(*chptr))
4017		chptr++;
4018
4019		/* skip the "active" bit */
4020		while (*chptr && !isspace(*chptr))
4021		chptr++;
4022		while (*chptr && isspace(*chptr))
4023		chptr++;
4024
4025		/* skip the raid level */
4026		while (*chptr && !isspace(*chptr))
4027		chptr++;
4028		while (*chptr && isspace(*chptr))
4029		chptr++;
4030
4031		/* everything else is partition stuff */
4032		while (*chptr) {
4033		chptr2 = chptr;
4034		while (*chptr2 && *chptr2 != '[')
4035		chptr2++;
4036		if (!*chptr2)
4037		break;
4038
4039		/* yank off the numbers at the end */
4040		chptr2--;
4041		while (isdigit(*chptr2) && chptr2 > chptr)
4042		chptr2--;
4043		chptr2++;
4044		*chptr2 = '\0';
4045
4046		/* Better, now we need the /dev/ back. We're
4047		* done with everything before this point, so
4048		* we can just put the /dev/ part there.
4049		* There will always be room. */
4050		memcpy(chptr - 5, "/dev/", 5);
4051		rc = checkDeviceBootloader(chptr - 5, boot);
4052		if (rc != 2) {
4053		return rc;
4054		}
4055
4056		chptr = chptr2 + 1;
4057		/* skip the [11] bit */
4058		while (*chptr && !isspace(*chptr))
4059		chptr++;
4060		/* and move to the next one */
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063		}
4064
4065	return 1;	/*  we're good to go */
4066		return 2;
4067		}
4068
4069		chptr = end + 1;
4070		}
4071
4072		fprintf(stderr,
4073		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4074		mdDev);
4075		return 0;
4076	}	}
4077
4078	int checkForElilo(struct grubConfig * config) {	int checkForLilo(struct grubConfig *config)
4079	if (!access("/etc/elilo.conf", R_OK))	{
4080	return 2;	int fd;
4081		unsigned char boot[512];
4082		struct singleLine *line;
4083
4084		for (line = config->theLines; line; line = line->next)
4085		if (line->type == LT_BOOT)
4086		break;
4087
4088		if (!line) {
4089		fprintf(stderr,
4090		_
4091		("grubby: no boot line found in lilo configuration\n"));
4092		return 1;
4093		}
4094
4095		if (line->numElements != 2)
4096		return 1;
4097
4098		fd = open("/boot/boot.b", O_RDONLY);
4099		if (fd < 0) {
4100		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4101		"/boot/boot.b", strerror(errno));
4102		return 1;
4103		}
4104
4105		if (read(fd, boot, 512) != 512) {
4106		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4107		"/boot/boot.b", strerror(errno));
4108		return 1;
4109		}
4110		close(fd);
4111
4112	return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4113		return checkLiloOnRaid(line->elements[1].item, boot);
4114
4115		return checkDeviceBootloader(line->elements[1].item, boot);
4116	}	}
4117
4118	static char * getRootSpecifier(char * str) {	int checkForGrub2(struct grubConfig *config)
4119	char * idx, * rootspec = NULL;	{
4120		if (!access("/etc/grub.d/", R_OK))
4121		return 2;
4122
4123	if (*str == '(') {	return 1;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
4124	}	}
4125
4126	static char * getInitrdVal(struct grubConfig * config,	int checkForGrub(struct grubConfig *config)
4127	const char * prefix, struct singleLine *tmplLine,	{
4128	const char * newKernelInitrd,	int fd;
4129	const char ** extraInitrds, int extraInitrdCount)	unsigned char bootSect[512];
4130	{	char *boot;
4131	char *initrdVal, *end;	int onSuse = isSuseSystem();
4132	int i;
4133	size_t totalSize;	if (onSuse) {
4134	size_t prefixLen;	if (parseSuseGrubConf(NULL, &boot))
4135	char separatorChar;	return 0;
4136		} else {
4137	prefixLen = strlen(prefix);	if (parseSysconfigGrub(NULL, &boot))
4138	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	return 0;
4139		}
4140	for (i = 0; i < extraInitrdCount; i++) {
4141	totalSize += sizeof(separatorChar);	/* assume grub is not installed -- not an error condition */
4142	totalSize += strlen(extraInitrds[i]) - prefixLen;	if (!boot)
4143	}	return 0;
4144
4145	initrdVal = end = malloc(totalSize);	fd = open("/boot/grub/stage1", O_RDONLY);
4146		if (fd < 0)
4147		/* this doesn't exist if grub hasn't been installed */
4148		return 0;
4149
4150	end = stpcpy (end, newKernelInitrd + prefixLen);	if (read(fd, bootSect, 512) != 512) {
4151		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4152		"/boot/grub/stage1", strerror(errno));
4153		close(fd);
4154		return 1;
4155		}
4156		close(fd);
4157
4158	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	/* The more elaborate checks do not work on SuSE. The checks done
4159	for (i = 0; i < extraInitrdCount; i++) {	* seem to be reasonble (at least for now), so just return success
4160	const char *extraInitrd;	*/
4161	int j;	if (onSuse)
4162		return 2;
4163
4164	extraInitrd = extraInitrds[i] + prefixLen;	return checkDeviceBootloader(boot, bootSect);
4165	/* Don't add entries that are already there */	}
	if (tmplLine != NULL) {
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4166
4167	if (j != tmplLine->numElements)	int checkForExtLinux(struct grubConfig *config)
4168	continue;	{
4169		int fd;
4170		unsigned char bootSect[512];
4171		char *boot;
4172		char executable[] = "/boot/extlinux/extlinux";
4173
4174		printf("entered: checkForExtLinux()\n");
4175
4176		if (parseSysconfigGrub(NULL, &boot))
4177		return 0;
4178
4179		/* assume grub is not installed -- not an error condition */
4180		if (!boot)
4181		return 0;
4182
4183		fd = open(executable, O_RDONLY);
4184		if (fd < 0)
4185		/* this doesn't exist if grub hasn't been installed */
4186		return 0;
4187
4188		if (read(fd, bootSect, 512) != 512) {
4189		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4190		executable, strerror(errno));
4191		return 1;
4192	}	}
4193		close(fd);
4194
4195	*end++ = separatorChar;	return checkDeviceBootloader(boot, bootSect);
4196	end = stpcpy(end, extraInitrd);	}
	}
4197
4198	return initrdVal;	int checkForYaboot(struct grubConfig *config)
4199		{
4200		/*
4201		* This is a simplistic check that we consider good enough for own puporses
4202		*
4203		* If we were to properly check if yaboot is *installed* we'd need to:
4204		* 1) get the system boot device (LT_BOOT)
4205		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4206		*    the content on the boot device
4207		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4208		* 4) check again if binary and boot device contents match
4209		*/
4210		if (!access("/etc/yaboot.conf", R_OK))
4211		return 2;
4212
4213		return 1;
4214	}	}
4215
4216	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int checkForElilo(struct grubConfig *config)
4217	const char * prefix,	{
4218	const char * newKernelPath, const char * newKernelTitle,	if (!access("/etc/elilo.conf", R_OK))
4219	const char * newKernelArgs, const char * newKernelInitrd,	return 2;
4220	const char ** extraInitrds, int extraInitrdCount,
4221	const char * newMBKernel, const char * newMBKernelArgs) {	return 1;
4222	struct singleEntry * new;	}
4223	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
4224	int needs;	static char *getRootSpecifier(char *str)
4225	char * chptr;	{
4226		char *idx, *rootspec = NULL;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
4227
4228	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (*str == '(') {
4229	while (findEntryByPath(config, buf, NULL, NULL)) {	idx = rootspec = strdup(str);
4230	sprintf(numBuf, "%d", i++);	while (*idx && (*idx != ')') && (!isspace(*idx)))
4231	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	idx++;
4232		*(++idx) = '\0';
4233	}	}
4234		return rootspec;
4235		}
4236
4237	newKernelTitle = buf + 6;	static char *getInitrdVal(struct grubConfig *config,
4238	}	const char *prefix, struct singleLine *tmplLine,
4239		const char *newKernelInitrd,
4240		const char **extraInitrds, int extraInitrdCount)
4241		{
4242		char *initrdVal, *end;
4243		int i;
4244		size_t totalSize;
4245		size_t prefixLen;
4246		char separatorChar;
4247
4248		prefixLen = strlen(prefix);
4249		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4250
4251		for (i = 0; i < extraInitrdCount; i++) {
4252		totalSize += sizeof(separatorChar);
4253		totalSize += strlen(extraInitrds[i]) - prefixLen;
4254		}
4255
4256		initrdVal = end = malloc(totalSize);
4257
4258		end = stpcpy(end, newKernelInitrd + prefixLen);
4259
4260		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4261		for (i = 0; i < extraInitrdCount; i++) {
4262		const char *extraInitrd;
4263		int j;
4264
4265		extraInitrd = extraInitrds[i] + prefixLen;
4266		/* Don't add entries that are already there */
4267		if (tmplLine != NULL) {
4268		for (j = 2; j < tmplLine->numElements; j++)
4269		if (strcmp
4270		(extraInitrd,
4271		tmplLine->elements[j].item) == 0)
4272		break;
4273
4274	new = malloc(sizeof(*new));	if (j != tmplLine->numElements)
4275	new->skip = 0;	continue;
4276	new->multiboot = 0;	}
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
4277
4278	if (template) {	*end++ = separatorChar;
4279	for (masterLine = template->lines;	end = stpcpy(end, extraInitrd);
	masterLine && (tmplLine = lineDup(masterLine));
	lineFree(tmplLine), masterLine = masterLine->next)
	{
	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = preferredLineType(LT_KERNEL, config->cfi);
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(tmplLine->type,
	config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix),
	config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = preferredLineType(LT_INITRD, config->cfi);
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(tmplLine->type,
	config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (isinitrd(tmplLine->type) && tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next &&
	iskernel(masterLine->next->type)) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
4280	}	}
4281
4282	} else {	return initrdVal;
4283	/* don't have a template, so start the entry with the	}
4284	* appropriate starting line
4285	*/	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4286	switch (config->cfi->entryStart) {	const char *prefix,
4287	case LT_KERNEL:	const char *newKernelPath, const char *newKernelTitle,
4288	case LT_KERNEL_EFI:	const char *newKernelArgs, const char *newKernelInitrd,
4289	if (new->multiboot && config->cfi->mbHyperFirst) {	const char **extraInitrds, int extraInitrdCount,
4290	/* fall through to LT_HYPER */	const char *newMBKernel, const char *newMBKernelArgs,
4291	} else {	const char *newDevTreePath, int newIndex)
4292	newLine = addLine(new, config->cfi,	{
4293	preferredLineType(LT_KERNEL, config->cfi),	struct singleEntry *new, *entry, *prev = NULL;
4294	config->primaryIndent,	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4295	newKernelPath + strlen(prefix));	int needs;
4296	needs &= ~NEED_KERNEL;	char *indexs;
4297	break;	char *chptr;
4298		int rc;
4299
4300		if (!newKernelPath)
4301		return 0;
4302
4303		rc = asprintf(&indexs, "%d", newIndex);
4304		if (rc < 0)
4305		return 1;
4306
4307		/* if the newKernelTitle is too long silently munge it into something
4308		* we can live with. truncating is first check, then we'll just mess with
4309		* it until it looks better */
4310		if (config->cfi->maxTitleLength &&
4311		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4312		char *buf = alloca(config->cfi->maxTitleLength + 7);
4313		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4314		int i = 1;
4315
4316		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4317		newKernelTitle);
4318		while (findEntryByPath(config, buf, NULL, NULL)) {
4319		sprintf(numBuf, "%d", i++);
4320		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4321	}	}
4322
4323	case LT_HYPER:	newKernelTitle = buf + 6;
4324	newLine = addLine(new, config->cfi, LT_HYPER,	}
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
4325
4326	case LT_MENUENTRY: {	new = malloc(sizeof(*new));
4327	char *nkt = malloc(strlen(newKernelTitle)+3);	new->skip = 0;
4328	strcpy(nkt, "'");	new->multiboot = 0;
4329	strcat(nkt, newKernelTitle);	new->lines = NULL;
4330	strcat(nkt, "'");	entry = config->entries;
4331	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (unsigned int i = 0; i < newIndex; i++) {
4332	config->primaryIndent, nkt);	if (!entry)
4333	free(nkt);	break;
4334	needs &= ~NEED_TITLE;	prev = entry;
4335	needs |= NEED_END;	entry = entry->next;
4336	break;	}
4337	}	new->next = entry;
4338	case LT_TITLE:
4339	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	if (prev)
4340	char * templabel;	prev->next = new;
4341	int x = 0, y = 0;	else
4342		config->entries = new;
4343	templabel = strdup(newKernelTitle);
4344	while( templabel[x]){	/* copy/update from the template */
4345	if( templabel[x] == ' ' ){	needs = NEED_KERNEL | NEED_TITLE;
4346	y = x;	if (newKernelInitrd)
4347	while( templabel[y] ){	needs |= NEED_INITRD;
4348	templabel[y] = templabel[y+1];	if (newMBKernel) {
4349	y++;	needs |= NEED_MB;
4350		new->multiboot = 1;
4351		}
4352		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4353		needs |= NEED_DEVTREE;
4354
4355		if (template) {
4356		for (masterLine = template->lines;
4357		masterLine && (tmplLine = lineDup(masterLine));
4358		lineFree(tmplLine), masterLine = masterLine->next) {
4359		dbgPrintf("addNewKernel processing %d\n",
4360		tmplLine->type);
4361
4362		/* skip comments */
4363		chptr = tmplLine->indent;
4364		while (*chptr && isspace(*chptr))
4365		chptr++;
4366		if (*chptr == '#')
4367		continue;
4368
4369		if (iskernel(tmplLine->type)
4370		&& tmplLine->numElements >= 2) {
4371		if (!template->multiboot && (needs & NEED_MB)) {
4372		/* it's not a multiboot template and
4373		* this is the kernel line.  Try to
4374		* be intelligent about inserting the
4375		* hypervisor at the same time.
4376		*/
4377		if (config->cfi->mbHyperFirst) {
4378		/* insert the hypervisor first */
4379		newLine =
4380		addLine(new, config->cfi,
4381		LT_HYPER,
4382		tmplLine->indent,
4383		newMBKernel +
4384		strlen(prefix));
4385		/* set up for adding the
4386		* kernel line */
4387		free(tmplLine->indent);
4388		tmplLine->indent =
4389		strdup(config->
4390		secondaryIndent);
4391		needs &= ~NEED_MB;
4392		}
4393		if (needs & NEED_KERNEL) {
4394		/* use addLineTmpl to
4395		* preserve line elements,
4396		* otherwise we could just
4397		* call addLine.
4398		* Unfortunately this means
4399		* making some changes to the
4400		* template such as the
4401		* indent change above and
4402		* the type change below.
4403		*/
4404		struct keywordTypes *mbm_kw =
4405		getKeywordByType
4406		(LT_MBMODULE, config->cfi);
4407		if (mbm_kw) {
4408		tmplLine->type =
4409		LT_MBMODULE;
4410		free(tmplLine->
4411		elements[0].item);
4412		tmplLine->elements[0].
4413		item =
4414		strdup(mbm_kw->key);
4415		}
4416		newLine =
4417		addLineTmpl(new, tmplLine,
4418		newLine,
4419		newKernelPath +
4420		strlen(prefix),
4421		config->cfi);
4422		needs &= ~NEED_KERNEL;
4423		}
4424		if (needs & NEED_MB) { /* !mbHyperFirst */
4425		newLine =
4426		addLine(new, config->cfi,
4427		LT_HYPER,
4428		config->
4429		secondaryIndent,
4430		newMBKernel +
4431		strlen(prefix));
4432		needs &= ~NEED_MB;
4433		}
4434		} else if (needs & NEED_KERNEL) {
4435		newLine =
4436		addLineTmpl(new, tmplLine, newLine,
4437		newKernelPath +
4438		strlen(prefix),
4439		config->cfi);
4440		needs &= ~NEED_KERNEL;
4441		}
4442
4443		} else if (tmplLine->type == LT_HYPER &&
4444		tmplLine->numElements >= 2) {
4445		if (needs & NEED_MB) {
4446		newLine =
4447		addLineTmpl(new, tmplLine, newLine,
4448		newMBKernel +
4449		strlen(prefix),
4450		config->cfi);
4451		needs &= ~NEED_MB;
4452		}
4453
4454		} else if (tmplLine->type == LT_MBMODULE &&
4455		tmplLine->numElements >= 2) {
4456		if (new->multiboot) {
4457		if (needs & NEED_KERNEL) {
4458		newLine =
4459		addLineTmpl(new, tmplLine,
4460		newLine,
4461		newKernelPath +
4462		strlen(prefix),
4463		config->cfi);
4464		needs &= ~NEED_KERNEL;
4465		} else if (config->cfi->mbInitRdIsModule
4466		&& (needs & NEED_INITRD)) {
4467		char *initrdVal;
4468		initrdVal =
4469		getInitrdVal(config, prefix,
4470		tmplLine,
4471		newKernelInitrd,
4472		extraInitrds,
4473		extraInitrdCount);
4474		newLine =
4475		addLineTmpl(new, tmplLine,
4476		newLine,
4477		initrdVal,
4478		config->cfi);
4479		free(initrdVal);
4480		needs &= ~NEED_INITRD;
4481	}	}
4482		} else if (needs & NEED_KERNEL) {
4483		/* template is multi but new is not,
4484		* insert the kernel in the first
4485		* module slot
4486		*/
4487		tmplLine->type =
4488		preferredLineType(LT_KERNEL,
4489		config->cfi);
4490		free(tmplLine->elements[0].item);
4491		tmplLine->elements[0].item =
4492		strdup(getKeywordByType
4493		(tmplLine->type,
4494		config->cfi)->key);
4495		newLine =
4496		addLineTmpl(new, tmplLine, newLine,
4497		newKernelPath +
4498		strlen(prefix),
4499		config->cfi);
4500		needs &= ~NEED_KERNEL;
4501		} else if (needs & NEED_INITRD) {
4502		char *initrdVal;
4503		/* template is multi but new is not,
4504		* insert the initrd in the second
4505		* module slot
4506		*/
4507		tmplLine->type =
4508		preferredLineType(LT_INITRD,
4509		config->cfi);
4510		free(tmplLine->elements[0].item);
4511		tmplLine->elements[0].item =
4512		strdup(getKeywordByType
4513		(tmplLine->type,
4514		config->cfi)->key);
4515		initrdVal =
4516		getInitrdVal(config, prefix,
4517		tmplLine,
4518		newKernelInitrd,
4519		extraInitrds,
4520		extraInitrdCount);
4521		newLine =
4522		addLineTmpl(new, tmplLine, newLine,
4523		initrdVal, config->cfi);
4524		free(initrdVal);
4525		needs &= ~NEED_INITRD;
4526	}	}
4527	x++;
4528		} else if (isinitrd(tmplLine->type)
4529		&& tmplLine->numElements >= 2) {
4530		if (needs & NEED_INITRD && new->multiboot
4531		&& !template->multiboot
4532		&& config->cfi->mbInitRdIsModule) {
4533		/* make sure we don't insert the
4534		* module initrd before the module
4535		* kernel... if we don't do it here,
4536		* it will be inserted following the
4537		* template.
4538		*/
4539		if (!needs & NEED_KERNEL) {
4540		char *initrdVal;
4541
4542		initrdVal =
4543		getInitrdVal(config, prefix,
4544		tmplLine,
4545		newKernelInitrd,
4546		extraInitrds,
4547		extraInitrdCount);
4548		newLine =
4549		addLine(new, config->cfi,
4550		LT_MBMODULE,
4551		config->
4552		secondaryIndent,
4553		initrdVal);
4554		free(initrdVal);
4555		needs &= ~NEED_INITRD;
4556		}
4557		} else if (needs & NEED_INITRD) {
4558		char *initrdVal;
4559		initrdVal =
4560		getInitrdVal(config, prefix,
4561		tmplLine,
4562		newKernelInitrd,
4563		extraInitrds,
4564		extraInitrdCount);
4565		newLine =
4566		addLineTmpl(new, tmplLine, newLine,
4567		initrdVal, config->cfi);
4568		free(initrdVal);
4569		needs &= ~NEED_INITRD;
4570		}
4571
4572		} else if (tmplLine->type == LT_MENUENTRY &&
4573		(needs & NEED_TITLE)) {
4574		requote(tmplLine, config->cfi);
4575		char *nkt = malloc(strlen(newKernelTitle) + 3);
4576		strcpy(nkt, "'");
4577		strcat(nkt, newKernelTitle);
4578		strcat(nkt, "'");
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, nkt,
4581		config->cfi);
4582		free(nkt);
4583		needs &= ~NEED_TITLE;
4584		} else if (tmplLine->type == LT_TITLE &&
4585		(needs & NEED_TITLE)) {
4586		if (tmplLine->numElements >= 2) {
4587		newLine =
4588		addLineTmpl(new, tmplLine, newLine,
4589		newKernelTitle,
4590		config->cfi);
4591		needs &= ~NEED_TITLE;
4592		} else if (tmplLine->numElements == 1 &&
4593		config->cfi->titleBracketed) {
4594		/* addLineTmpl doesn't handle
4595		* titleBracketed */
4596		newLine =
4597		addLine(new, config->cfi, LT_TITLE,
4598		tmplLine->indent,
4599		newKernelTitle);
4600		needs &= ~NEED_TITLE;
4601		}
4602		} else if (tmplLine->type == LT_ECHO) {
4603		requote(tmplLine, config->cfi);
4604		static const char *prefix = "'Loading ";
4605		if (tmplLine->numElements > 1 &&
4606		strstr(tmplLine->elements[1].item, prefix)
4607		&& masterLine->next
4608		&& iskernel(masterLine->next->type)) {
4609		char *newTitle =
4610		malloc(strlen(prefix) +
4611		strlen(newKernelTitle) + 2);
4612
4613		strcpy(newTitle, prefix);
4614		strcat(newTitle, newKernelTitle);
4615		strcat(newTitle, "'");
4616		newLine =
4617		addLine(new, config->cfi, LT_ECHO,
4618		tmplLine->indent, newTitle);
4619		free(newTitle);
4620		} else {
4621		/* pass through other lines from the
4622		* template */
4623		newLine =
4624		addLineTmpl(new, tmplLine, newLine,
4625		NULL, config->cfi);
4626		}
4627		} else if (tmplLine->type == LT_DEVTREE &&
4628		tmplLine->numElements == 2
4629		&& newDevTreePath) {
4630		newLine =
4631		addLineTmpl(new, tmplLine, newLine,
4632		newDevTreePath + strlen(prefix),
4633		config->cfi);
4634		needs &= ~NEED_DEVTREE;
4635		} else if (tmplLine->type == LT_ENTRY_END
4636		&& needs & NEED_DEVTREE) {
4637		const char *ndtp = newDevTreePath;
4638		if (!strncmp
4639		(newDevTreePath, prefix, strlen(prefix)))
4640		ndtp += strlen(prefix);
4641		newLine = addLine(new, config->cfi, LT_DEVTREE,
4642		config->secondaryIndent,
4643		ndtp);
4644		needs &= ~NEED_DEVTREE;
4645		newLine =
4646		addLineTmpl(new, tmplLine, newLine, NULL,
4647		config->cfi);
4648		} else {
4649		/* pass through other lines from the template */
4650		newLine =
4651		addLineTmpl(new, tmplLine, newLine, NULL,
4652		config->cfi);
4653	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
4654	}	}
	needs &= ~NEED_TITLE;
	break;
4655
4656	default:	} else {
4657	abort();	/* don't have a template, so start the entry with the
4658		* appropriate starting line
4659		*/
4660		switch (config->cfi->entryStart) {
4661		case LT_KERNEL:
4662		case LT_KERNEL_EFI:
4663		case LT_KERNEL_16:
4664		if (new->multiboot && config->cfi->mbHyperFirst) {
4665		/* fall through to LT_HYPER */
4666		} else {
4667		newLine = addLine(new, config->cfi,
4668		preferredLineType(LT_KERNEL,
4669		config->
4670		cfi),
4671		config->primaryIndent,
4672		newKernelPath +
4673		strlen(prefix));
4674		needs &= ~NEED_KERNEL;
4675		break;
4676		}
4677
4678		case LT_HYPER:
4679		newLine = addLine(new, config->cfi, LT_HYPER,
4680		config->primaryIndent,
4681		newMBKernel + strlen(prefix));
4682		needs &= ~NEED_MB;
4683		break;
4684
4685		case LT_MENUENTRY:{
4686		char *nkt = malloc(strlen(newKernelTitle) + 3);
4687		strcpy(nkt, "'");
4688		strcat(nkt, newKernelTitle);
4689		strcat(nkt, "'");
4690		newLine =
4691		addLine(new, config->cfi, LT_MENUENTRY,
4692		config->primaryIndent, nkt);
4693		free(nkt);
4694		needs &= ~NEED_TITLE;
4695		needs |= NEED_END;
4696		break;
4697		}
4698		case LT_TITLE:
4699		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4700		char *templabel;
4701		int x = 0, y = 0;
4702
4703		templabel = strdup(newKernelTitle);
4704		while (templabel[x]) {
4705		if (templabel[x] == ' ') {
4706		y = x;
4707		while (templabel[y]) {
4708		templabel[y] =
4709		templabel[y + 1];
4710		y++;
4711		}
4712		}
4713		x++;
4714		}
4715		newLine = addLine(new, config->cfi, LT_TITLE,
4716		config->primaryIndent,
4717		templabel);
4718		free(templabel);
4719		} else {
4720		newLine = addLine(new, config->cfi, LT_TITLE,
4721		config->primaryIndent,
4722		newKernelTitle);
4723		}
4724		needs &= ~NEED_TITLE;
4725		break;
4726
4727		default:
4728		abort();
4729		}
4730	}	}
	}
4731
4732	/* add the remainder of the lines, i.e. those that either	struct singleLine *endLine = NULL;
4733	* weren't present in the template, or in the case of no template,	endLine = getLineByType(LT_ENTRY_END, new->lines);
4734	* all the lines following the entryStart.	if (endLine) {
4735	*/	removeLine(new, endLine);
4736	if (needs & NEED_TITLE) {	needs |= NEED_END;
4737	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;
	}
4738
4739	if (needs) {	/* add the remainder of the lines, i.e. those that either
4740	printf(_("grubby: needs=%d, aborting\n"), needs);	* weren't present in the template, or in the case of no template,
4741	abort();	* all the lines following the entryStart.
4742	}	*/
4743		if (needs & NEED_TITLE) {
4744		newLine = addLine(new, config->cfi, LT_TITLE,
4745		config->secondaryIndent, newKernelTitle);
4746		needs &= ~NEED_TITLE;
4747		}
4748		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4749		newLine = addLine(new, config->cfi, LT_HYPER,
4750		config->secondaryIndent,
4751		newMBKernel + strlen(prefix));
4752		needs &= ~NEED_MB;
4753		}
4754		if (needs & NEED_KERNEL) {
4755		newLine = addLine(new, config->cfi,
4756		(new->multiboot
4757		&& getKeywordByType(LT_MBMODULE,
4758		config->cfi))
4759		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4760		config->
4761		cfi),
4762		config->secondaryIndent,
4763		newKernelPath + strlen(prefix));
4764		needs &= ~NEED_KERNEL;
4765		}
4766		if (needs & NEED_MB) {
4767		newLine = addLine(new, config->cfi, LT_HYPER,
4768		config->secondaryIndent,
4769		newMBKernel + strlen(prefix));
4770		needs &= ~NEED_MB;
4771		}
4772		if (needs & NEED_INITRD) {
4773		char *initrdVal;
4774		initrdVal =
4775		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4776		extraInitrds, extraInitrdCount);
4777		newLine =
4778		addLine(new, config->cfi,
4779		(new->multiboot
4780		&& getKeywordByType(LT_MBMODULE, config->cfi))
4781		? LT_MBMODULE : preferredLineType(LT_INITRD,
4782		config->cfi),
4783		config->secondaryIndent, initrdVal);
4784		free(initrdVal);
4785		needs &= ~NEED_INITRD;
4786		}
4787		if (needs & NEED_DEVTREE) {
4788		newLine = addLine(new, config->cfi, LT_DEVTREE,
4789		config->secondaryIndent, newDevTreePath);
4790		needs &= ~NEED_DEVTREE;
4791		}
4792
4793		/* NEEDS_END must be last on bootloaders that need it... */
4794		if (needs & NEED_END) {
4795		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4796		config->secondaryIndent, NULL);
4797		needs &= ~NEED_END;
4798		}
4799
4800	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (needs) {
4801	newMBKernelArgs, NULL)) return 1;	printf(_("grubby: needs=%d, aborting\n"), needs);
4802		abort();
4803		}
4804
4805	return 0;	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4806		newMBKernelArgs, NULL)) {
4807		config->isModified = 1;
4808		return 1;
4809		}
4810
4811		return 0;
4812	}	}
4813
4814	static void traceback(int signum)	int main(int argc, const char **argv)
4815	{	{
4816	void *array[40];	poptContext optCon;
4817	size_t size;	const char *grubConfig = NULL;
4818		char *outputFile = NULL;
4819	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4820	memset(array, '\0', sizeof (array));	int flags = 0;
4821	size = backtrace(array, 40);	int badImageOkay = 0;
4822		int configureGrub2 = 0;
4823	fprintf(stderr, "grubby received SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4824	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4825	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4826	exit(1);	int bootloaderProbe = 0;
4827	}	int extraInitrdCount = 0;
4828		char *updateKernelPath = NULL;
4829	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4830	poptContext optCon;	char *removeKernelPath = NULL;
4831	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4832	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4833	int arg = 0;	char *newKernelTitle = NULL;
4834	int flags = 0;	char *newDevTreePath = NULL;
4835	int badImageOkay = 0;	char *newMBKernel = NULL;
4836	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4837	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4838	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4839	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4840	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4841	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4842	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4843	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4844	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4845	char * newKernelArgs = NULL;	char *envPath = NULL;
4846	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4847	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4848	char * newKernelVersion = NULL;	struct grubConfig *config;
4849	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4850	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4851	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4852	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4853	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4854	char * defaultKernel = NULL;	int defaultIndex = -1;
4855	char * removeArgs = NULL;	struct poptOption options[] = {
4856	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4857	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4858	char * envPath = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4859	const char * chptr = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4860	struct configFileInfo * cfi = NULL;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4861	struct grubConfig * config;	_("default arguments for the new kernel or new arguments for "
4862	struct singleEntry * template = NULL;	"kernel being updated"), _("args")},
4863	int copyDefault = 0, makeDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4864	int displayDefault = 0;	_("default arguments for the new multiboot kernel or "
4865	int displayDefaultIndex = 0;	"new arguments for multiboot kernel being updated"), NULL},
4866	int displayDefaultTitle = 0;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4867	int defaultIndex = -1;	_
4868	struct poptOption options[] = {	("don't sanity check images in boot entries (for testing only)"),
4869	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	NULL},
4870	_("add an entry for the specified kernel"), _("kernel-path") },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4871	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	_
4872	_("add an entry for the specified multiboot kernel"), NULL },	("filesystem which contains /boot directory (for testing only)"),
4873	{ "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") },
4874	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4875	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4876	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4877	#endif	#endif
4878	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4879	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4880	_("path") },	_("path")},
4881	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4882	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4883	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4884	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4885	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4886	"template"), NULL },	"template"), NULL},
4887	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4888	_("print debugging information for failures") },	_("print debugging information for failures")},
4889	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4890	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4891	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4892	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4893	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4894	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4895	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4896	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4897	{ "efi", 0, POPT_ARG_NONE, &isEfi, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898	_("force grub2 stanzas to use efi") },	_("device tree directory for new stanza"), _("dtb-path")},
4899	{ "env", 0, POPT_ARG_STRING, &envPath, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4900	_("path for environment data"),	_("configure elilo bootloader")},
4901	_("path") },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4902	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	_("force grub2 stanzas to use efi")},
4903	_("configure extlinux bootloader (from syslinux)") },	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4904	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	_("path for environment data"),
4905	_("configure grub bootloader") },	_("path")},
4906	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4907	_("configure grub2 bootloader") },	_("configure extlinux bootloader (from syslinux)")},
4908	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4909	_("display boot information for specified kernel"),	_("configure grub bootloader")},
4910	_("kernel-path") },	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4911	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("configure grub2 bootloader")},
4912	_("initrd image for the new kernel"), _("initrd-path") },	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4913	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	_("display boot information for specified kernel"),
4914	_("auxiliary initrd image for things other than the new kernel"), _("initrd-path") },	_("kernel-path")},
4915	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4916	_("configure lilo bootloader") },	_("initrd image for the new kernel"), _("initrd-path")},
4917	{ "make-default", 0, 0, &makeDefault, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4918	_("make the newly added entry the default boot entry"), NULL },	_
4919	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	("auxiliary initrd image for things other than the new kernel"),
4920	_("path to output updated config file (\"-\" for stdout)"),	_("initrd-path")},
4921	_("path") },	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4922	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("configure lilo bootloader")},
4923	_("remove kernel arguments"), NULL },	{"make-default", 0, 0, &makeDefault, 0,
4924	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("make the newly added entry the default boot entry"), NULL},
4925	_("remove multiboot kernel arguments"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4926	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("path to output updated config file (\"-\" for stdout)"),
4927	_("remove all entries for the specified kernel"),	_("path")},
4928	_("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4929	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("remove kernel arguments"), NULL},
4930	_("remove all entries for the specified multiboot kernel"), NULL },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4931	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("remove multiboot kernel arguments"), NULL},
4932	_("make the first entry referencing the specified kernel "	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4933	"the default"), _("kernel-path") },	_("remove all entries for the specified kernel"),
4934	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("kernel-path")},
4935	_("make the given entry index the default entry"),	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4936	_("entry-index") },	_("remove all entries for the specified multiboot kernel"),
4937	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	NULL},
4938	_("configure silo bootloader") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4939	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("make the first entry referencing the specified kernel "
4940	_("title to use for the new kernel entry"), _("entry-title") },	"the default"), _("kernel-path")},
4941	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4942	_("updated information for the specified kernel"),	_("make the given entry index the default entry"),
4943	_("kernel-path") },	_("entry-index")},
4944	{ "version", 'v', 0, NULL, 'v',	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4945	_("print the version of this program and exit"), NULL },	_("use the given index when creating a new entry"),
4946	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("entry-index")},
4947	_("configure yaboot bootloader") },	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4948	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("configure silo bootloader")},
4949	_("configure zipl bootloader") },	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4950	POPT_AUTOHELP	_("title to use for the new kernel entry"), _("entry-title")},
4951	{ 0, 0, 0, 0, 0 }	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4952	};	_("updated information for the specified kernel"),
4953		_("kernel-path")},
4954	useextlinuxmenu=0;	{"version", 'v', 0, NULL, 'v',
4955		_("print the version of this program and exit"), NULL},
4956	signal(SIGSEGV, traceback);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4957		_("configure yaboot bootloader")},
4958	int i = 0;	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4959	for (int j = 1; j < argc; j++)	_("configure zipl bootloader")},
4960	i += strlen(argv[j]) + 1;	POPT_AUTOHELP {0, 0, 0, 0, 0}
4961	saved_command_line = malloc(i);	};
4962	if (!saved_command_line) {
4963	fprintf(stderr, "grubby: %m\n");	useextlinuxmenu = 0;
4964	exit(1);
4965	}	int i = 0;
4966	saved_command_line[0] = '\0';	for (int j = 1; j < argc; j++)
4967	for (int j = 1; j < argc; j++) {	i += strlen(argv[j]) + 1;
4968	strcat(saved_command_line, argv[j]);	saved_command_line = malloc(i);
4969	strncat(saved_command_line, j == argc -1 ? "" : " ", 1);	if (!saved_command_line) {
4970	}	fprintf(stderr, "grubby: %m\n");
4971		exit(1);
4972	optCon = poptGetContext("grubby", argc, argv, options, 0);	}
4973	poptReadDefaultConfig(optCon, 1);	saved_command_line[0] = '\0';
4974		for (int j = 1; j < argc; j++) {
4975		strcat(saved_command_line, argv[j]);
4976		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4977		}
4978
4979		optCon = poptGetContext("grubby", argc, argv, options, 0);
4980		poptReadDefaultConfig(optCon, 1);
4981
4982		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4983		switch (arg) {
4984		case 'v':
4985		printf("grubby version %s\n", VERSION);
4986		exit(0);
4987		break;
4988		case 'i':
4989		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4990		extraInitrds[extraInitrdCount++] =
4991		strdup(poptGetOptArg(optCon));
4992		} else {
4993		fprintf(stderr,
4994		_
4995		("grubby: extra initrd maximum is %d\n"),
4996		extraInitrdCount);
4997		return 1;
4998		}
4999		break;
5000		}
5001		}
5002
5003	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (arg < -1) {
5004	switch (arg) {	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5005	case 'v':	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5006	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);
5007	return 1;	return 1;
	}
	break;
5008	}	}
	}
	if (arg < -1) {
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
5009
5010	if ((chptr = poptGetArg(optCon))) {	if ((chptr = poptGetArg(optCon))) {
5011	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5012	return 1;	return 1;
5013	}	}
	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;
	}
5014
5015	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5016	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5017	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5018	else	fprintf(stderr,
5019	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5020	cfi = &eliloConfigType;	return 1;
5021	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5022	cfi = &yabootConfigType;	fprintf(stderr,
5023	#elif __sparc__	_
5024	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5025	#elif __s390__	return 1;
5026	cfi = &ziplConfigType;	} else if (configureGrub2) {
5027	#elif __s390x__	cfi = &grub2ConfigType;
5028	cfi = &ziplConfigtype;	if (envPath)
5029	#else	cfi->envFile = envPath;
5030	cfi = &grubConfigType;	} else if (configureLilo) {
5031	#endif	cfi = &liloConfigType;
5032	}	} else if (configureGrub) {
5033		cfi = &grubConfigType;
5034		} else if (configureELilo) {
5035		cfi = &eliloConfigType;
5036		} else if (configureYaboot) {
5037		cfi = &yabootConfigType;
5038		} else if (configureSilo) {
5039		cfi = &siloConfigType;
5040		} else if (configureZipl) {
5041		cfi = &ziplConfigType;
5042		} else if (configureExtLinux) {
5043		cfi = &extlinuxConfigType;
5044		useextlinuxmenu = 1;
5045		}
5046
5047		if (!cfi) {
5048		if (grub2FindConfig(&grub2ConfigType)) {
5049		cfi = &grub2ConfigType;
5050		if (envPath)
5051		cfi->envFile = envPath;
5052		} else
5053		#ifdef __ia64__
5054		cfi = &eliloConfigType;
5055		#elif __powerpc__
5056		cfi = &yabootConfigType;
5057		#elif __sparc__
5058		cfi = &siloConfigType;
5059		#elif __s390__
5060		cfi = &ziplConfigType;
5061		#elif __s390x__
5062		cfi = &ziplConfigtype;
5063		#else
5064		cfi = &grubConfigType;
5065		#endif
5066		}
5067
5068	if (!grubConfig) {	if (!grubConfig) {
5069	if (cfi->findConfig)	if (cfi->findConfig)
5070	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5071	if (!grubConfig)	if (!grubConfig)
5072	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5073	}	}
5074
5075	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5076	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5077	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
5078	(defaultIndex >= 0))) {	|| displayDefaultTitle
5079	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
5080		fprintf(stderr,
5081		_("grubby: --bootloader-probe may not be used with "
5082	"specified option"));	"specified option"));
5083	return 1;	return 1;
5084	}	}
5085
5086	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5087	removeKernelPath)) {	removeKernelPath)) {
5088	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5089	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5090	return 1;	return 1;
5091	}	}
5092
5093	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5094	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5095	return 1;	return 1;
5096	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5097	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5098	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5099	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5100	return 1;	return 1;
5101	}	}
5102
5103	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5104	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5105	"not be used together"));	"not be used together"));
5106	return 1;	return 1;
5107	}	}
5108
5109	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5110	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5111	"may not be used together\n"));	"may not be used together\n"));
5112	return 1;	return 1;
5113	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5114	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5115	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5116	return 1;	_("grubby: cannot make removed kernel the default\n"));
5117	} else if (defaultKernel && newKernelPath &&	return 1;
5118	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5119	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5120	defaultKernel = NULL;	makeDefault = 1;
5121	}	defaultKernel = NULL;
5122	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5123	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5124		_("grubby: --set-default and --set-default-index "
5125	"may not be used together\n"));	"may not be used together\n"));
5126	return 1;	return 1;
5127	}	}
5128
5129	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5130	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5131	"is used\n"));	_("grubby: output file must be specified if stdin "
5132	return 1;	"is used\n"));
5133	}	return 1;
5134		}
5135
5136	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5137	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5138	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5139	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5140	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5141	return 1;	return 1;
5142	}	}
5143
5144	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5145
5146	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5147	if (!bootPrefix) {	if (!bootPrefix) {
5148	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5149	if (!bootPrefix) return 1;	if (!bootPrefix)
5150		return 1;
5151		} else {
5152		/* this shouldn't end with a / */
5153		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5154		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5155		}
5156	} else {	} else {
5157	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5158	}	}
	} else {
	bootPrefix = "";
	}
5159
5160	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5161	extraInitrdCount > 0) {	fprintf(stderr,
5162	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5163	return 1;	cfi->defaultConfig);
5164	}	return 1;
5165		}
5166
5167	if (bootloaderProbe) {	if (bootloaderProbe) {
5168	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5169	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5170
5171	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5172	if (grub2config) {	if (grub2config) {
5173	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5174	if (!gconfig)	if (!gconfig)
5175	gr2c = 1;	gr2c = 1;
5176	else	else
5177	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5178	}	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(eliloConfigType.defaultConfig, F_OK)) {
	econfig = readConfig(eliloConfigType.defaultConfig,
	&eliloConfigType);
	if (!econfig)
	erc = 1;
	else
	erc = checkForElilo(econfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	extrc = 1;
	else
	extrc = checkForExtLinux(lconfig);
	}
	if (!access(yabootConfigType.defaultConfig, F_OK)) {
	yconfig = readConfig(yabootConfigType.defaultConfig,
	&yabootConfigType);
	if (!yconfig)
	yrc = 1;
	else
	yrc = checkForYaboot(yconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 ||
	erc == 1)
	return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (extrc == 2) printf("extlinux\n");
	if (yrc == 2) printf("yaboot\n");
	if (erc == 2) printf("elilo\n");
5179
5180	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5181	}	if (!access(grubconfig, F_OK)) {
5182		gconfig = readConfig(grubconfig, &grubConfigType);
5183		if (!gconfig)
5184		grc = 1;
5185		else
5186		grc = checkForGrub(gconfig);
5187		}
5188
5189	if (grubConfig == NULL) {	if (!access(liloConfigType.defaultConfig, F_OK)) {
5190	printf("Could not find bootloader configuration file.\n");	lconfig =
5191	exit(1);	readConfig(liloConfigType.defaultConfig,
5192	}	&liloConfigType);
5193		if (!lconfig)
5194		lrc = 1;
5195		else
5196		lrc = checkForLilo(lconfig);
5197		}
5198
5199	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5200	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5201		&eliloConfigType);
5202		if (!econfig)
5203		erc = 1;
5204		else
5205		erc = checkForElilo(econfig);
5206		}
5207
5208	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5209	struct singleLine * line;	lconfig =
5210	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5211	char * rootspec;	&extlinuxConfigType);
5212		if (!lconfig)
5213	if (config->defaultImage == -1) return 0;	extrc = 1;
5214	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	else
5215	cfi->defaultIsSaved)	extrc = checkForExtLinux(lconfig);
5216	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));
5217
5218	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5219		yconfig = readConfig(yabootConfigType.defaultConfig,
5220		&yabootConfigType);
5221		if (!yconfig)
5222		yrc = 1;
5223		else
5224		yrc = checkForYaboot(yconfig);
5225		}
5226
5227	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5228	struct singleLine * line;	|| erc == 1)
5229	struct singleEntry * entry;	return 1;
5230
5231	if (config->defaultImage == -1) return 0;	if (lrc == 2)
5232	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	printf("lilo\n");
5233	cfi->defaultIsSaved)	if (gr2c == 2)
5234	config->defaultImage = 0;	printf("grub2\n");
5235	entry = findEntryByIndex(config, config->defaultImage);	if (grc == 2)
5236	if (!entry) return 0;	printf("grub\n");
5237		if (extrc == 2)
5238	if (!configureGrub2) {	printf("extlinux\n");
5239	line = getLineByType(LT_TITLE, entry->lines);	if (yrc == 2)
5240	if (!line) return 0;	printf("yaboot\n");
5241	printf("%s\n", line->elements[1].item);	if (erc == 2)
5242		printf("elilo\n");
5243
5244	} else {	return 0;
5245	char * title;	}
5246
5247	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	if (grubConfig == NULL) {
5248	line = getLineByType(LT_MENUENTRY, entry->lines);	printf("Could not find bootloader configuration file.\n");
5249	if (!line) return 0;	exit(1);
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5250	}	}
	return 0;
5251
5252	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5253	if (config->defaultImage == -1) return 0;	if (!config)
5254	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;
	}
5255
5256	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5257	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5258	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5259	bootPrefix, flags, defaultIndex);	char *rootspec;
5260	setFallbackImage(config, newKernelPath != NULL);
5261	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5262	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5263	if (updateKernelPath && newKernelInitrd) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5264	if (updateInitrd(config, updateKernelPath, bootPrefix,	cfi->defaultIsSaved)
5265	newKernelInitrd)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5266	}	entry = findEntryByIndex(config, config->defaultImage);
5267	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (!entry)
5268	newKernelTitle, newKernelArgs, newKernelInitrd,	return 0;
5269	(const char **)extraInitrds, extraInitrdCount,	if (!suitableImage(entry, bootPrefix, 0, flags))
5270	newMBKernel, newMBKernelArgs)) return 1;	return 0;
5271
5272		line =
5273	if (numEntries(config) == 0) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5274	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	LT_KERNEL_16, entry->lines);
5275	"Not writing out new config.\n"));	if (!line)
5276	return 1;	return 0;
5277	}
5278		rootspec = getRootSpecifier(line->elements[1].item);
5279		printf("%s%s\n", bootPrefix, line->elements[1].item +
5280		((rootspec != NULL) ? strlen(rootspec) : 0));
5281
5282		return 0;
5283
5284		} else if (displayDefaultTitle) {
5285		struct singleLine *line;
5286		struct singleEntry *entry;
5287
5288		if (config->defaultImage == NO_DEFAULT_ENTRY)
5289		return 0;
5290		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5291		cfi->defaultIsSaved)
5292		config->defaultImage = FIRST_ENTRY_INDEX;
5293		entry = findEntryByIndex(config, config->defaultImage);
5294		if (!entry)
5295		return 0;
5296
5297		if (!configureGrub2) {
5298		char *title;
5299		line = getLineByType(LT_TITLE, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = extractTitle(config, line);
5303		if (!title)
5304		return 0;
5305		printf("%s\n", title);
5306		free(title);
5307		} else {
5308		char *title;
5309
5310		dbgPrintf
5311		("This is GRUB2, default title is embeded in menuentry\n");
5312		line = getLineByType(LT_MENUENTRY, entry->lines);
5313		if (!line)
5314		return 0;
5315		title = grub2ExtractTitle(line);
5316		if (title)
5317		printf("%s\n", title);
5318		}
5319		return 0;
5320
5321		} else if (displayDefaultIndex) {
5322		if (config->defaultImage == NO_DEFAULT_ENTRY)
5323		return 0;
5324		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5325		cfi->defaultIsSaved)
5326		config->defaultImage = FIRST_ENTRY_INDEX;
5327		printf("%i\n", config->defaultImage);
5328		return 0;
5329
5330		} else if (kernelInfo)
5331		return displayInfo(config, kernelInfo, bootPrefix);
5332
5333		if (copyDefault) {
5334		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5335		if (!template)
5336		return 1;
5337		}
5338
5339		markRemovedImage(config, removeKernelPath, bootPrefix);
5340		markRemovedImage(config, removeMBKernel, bootPrefix);
5341		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5342		makeDefault, bootPrefix, flags, defaultIndex,
5343		newIndex);
5344		setFallbackImage(config, newKernelPath != NULL);
5345		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5346		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5347		return 1;
5348		if (updateKernelPath && newKernelInitrd) {
5349		if (newMBKernel) {
5350		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5351		bootPrefix, newKernelInitrd,
5352		newKernelTitle))
5353		return 1;
5354		} else {
5355		if (updateInitrd(config, updateKernelPath, bootPrefix,
5356		newKernelInitrd, newKernelTitle))
5357		return 1;
5358		}
5359		}
5360		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5361		newKernelTitle, newKernelArgs, newKernelInitrd,
5362		(const char **)extraInitrds, extraInitrdCount,
5363		newMBKernel, newMBKernelArgs, newDevTreePath,
5364		newIndex))
5365		return 1;
5366
5367		if (numEntries(config) == 0) {
5368		fprintf(stderr,
5369		_("grubby: doing this would leave no kernel entries. "
5370		"Not writing out new config.\n"));
5371		return 1;
5372		}
5373
5374	if (!outputFile)	if (!outputFile)
5375	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5376
5377	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5378	}	}

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