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

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	trunk/grubby/grubby.c revision 2687 by niro, Wed Jul 16 10:41:38 2014 UTC	tags/grubby-8_40_20170706/grubby.c revision 3047 by niro, Thu Jul 6 12:20:52 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_KERNEL_16    = 1 << 22,	LT_INITRD_EFI = 1 << 21,
100	LT_INITRD_16    = 1 << 23,	LT_KERNEL_16 = 1 << 22,
101	LT_DEVTREE      = 1 << 24,	LT_INITRD_16 = 1 << 23,
102	LT_UNKNOWN      = 1 << 25,	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 125  struct singleEntry {	Line 132  struct singleEntry {
132	#define NEED_DEVTREE (1 << 6)	#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154	typedef char *(*getEnvFunc)(struct configFileInfo *, char *name);	typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155	typedef int (*setEnvFunc)(struct configFileInfo *, char *name, char *value);	typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	getEnvFunc getEnv;	getEnvFunc getEnv;
162	setEnvFunc setEnv;	setEnvFunc setEnv;
163	struct keywordTypes * keywords;	struct keywordTypes *keywords;
164	int caseInsensitive;	int caseInsensitive;
165	int defaultIsIndex;	int defaultIsIndex;
166	int defaultIsVariable;	int defaultIsVariable;
167	int defaultSupportSaved;	int defaultSupportSaved;
168	int defaultIsSaved;	int defaultIsSaved;
169	enum lineType_e entryStart;	int defaultIsUnquoted;
170	enum lineType_e entryEnd;	enum lineType_e entryStart;
171	int needsBootPrefix;	enum lineType_e entryEnd;
172	int argsInQuotes;	int needsBootPrefix;
173	int maxTitleLength;	int argsInQuotes;
174	int titleBracketed;	int maxTitleLength;
175	int titlePosition;	int titleBracketed;
176	int mbHyperFirst;	int titlePosition;
177	int mbInitRdIsModule;	int mbHyperFirst;
178	int mbConcatArgs;	int mbInitRdIsModule;
179	int mbAllowExtraInitRds;	int mbConcatArgs;
180	char *envFile;	int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/boot/grub/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/menu.lst",	"/boot/grub/grub.conf",
200	"/etc/grub.conf",	"/boot/grub/menu.lst",
201	"/boot/grub2/grub.cfg",	"/etc/grub.conf",
202	"/boot/grub2-efi/grub.cfg",	NULL
203	NULL	};
204	};	static int i = -1;
205	static int i = -1;
206		if (i == -1) {
207	if (i == -1) {	for (i = 0; configFiles[i] != NULL; i++) {
208	for (i = 0; configFiles[i] != NULL; i++) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("Checking \"%s\": ", configFiles[i]);	if (!access(configFiles[i], R_OK)) {
210	if (!access(configFiles[i], R_OK)) {	dbgPrintf("found\n");
211	dbgPrintf("found\n");	return configFiles[i];
212	return configFiles[i];	}
213	}	dbgPrintf("not found\n");
214	dbgPrintf("not found\n");	}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "linuxefi",   LT_KERNEL_EFI,  ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "linux16",    LT_KERNEL_16,   ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ "initrdefi",  LT_INITRD_EFI,  ' ', ' ' },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	{ "initrd16",   LT_INITRD_16,   ' ', ' ' },	{"initrd16", LT_INITRD_16, ' ', ' '},
246	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
247	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
248	{ "devicetree", LT_DEVTREE,  ' ' },	{"devicetree", LT_DEVTREE, ' '},
249	{ NULL, 0, 0 },	{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/grub/grubenv";	char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304	int rc = asprintf(&s, "grub-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/grub/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, "grub-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 || type == LT_KERNEL_16);	{
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 || type == LT_INITRD_16);	{
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	#if defined(__aarch64__)	switch (type) {
792	case LT_KERNEL:	case LT_KERNEL:
793	return LT_KERNEL;	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	case LT_INITRD:	case LT_INITRD:
795	return LT_INITRD;	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	#else	default:
797	case LT_KERNEL:	return type;
798	return LT_KERNEL_EFI;	}
	case LT_INITRD:
	return LT_INITRD_EFI;
	#endif
	default:
	return type;
	}
799	#if defined(__i386__) || defined(__x86_64__)	#if defined(__i386__) || defined(__x86_64__)
800	} else if (cfi == &grub2ConfigType) {	} else if (cfi == &grub2ConfigType) {
801	switch (type) {	switch (type) {
802	case LT_KERNEL:	case LT_KERNEL:
803	return LT_KERNEL_16;	return LT_KERNEL_16;
804	case LT_INITRD:	case LT_INITRD:
805	return LT_INITRD_16;	return LT_INITRD_16;
806	default:	default:
807	return type;	return type;
808	}	}
809	#endif	#endif
810	}	}
811	return type;	return type;
812	}	}
813
814	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
816	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
817	if (kw->type == type)	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	return kw;	if (kw->type == type)
819	}	return kw;
820	return NULL;	}
821		return NULL;
822	}	}
823
824	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct keywordTypes *kt = getKeywordByType(type, cfi);	{
826	if (kt)	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	return kt->key;	if (kt)
828	return "unknown";	return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getpathbyspec(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_devname(blkid, device, NULL);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static char * getuuidbydev(char *device) {	static char *getuuidbydev(char *device)
841	if (!blkid)	{
842	blkid_get_cache(&blkid, NULL);	if (!blkid)
843		blkid_get_cache(&blkid, NULL);
844
845	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
851	if (cfi->caseInsensitive) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcasecmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
	} else {
	if (!strcmp(keyword, kw->key))
	return kw->type;
854	}	}
855	}	return LT_UNKNOWN;
	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title = NULL;	/* bracketed title... let's extract it */
897	if (line->type == LT_TITLE) {	char *title = NULL;
898	title = strdup(line->elements[0].item);	if (line->type == LT_TITLE) {
899	title++;	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	*(title + strlen(title) - 1) = '\0';	if (cfg->cfi->titleBracketed) {
901	} else if (line->type == LT_MENUENTRY)	tmp++;
902	title = strdup(line->elements[1].item);	title = strdup(tmp);
903	else	*(title + strlen(title) - 1) = '\0';
904	return NULL;	} else {
905	return title;	title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912	}	}
913
914	static int readFile(int fd, char ** bufPtr) {	static int readFile(int fd, char **bufPtr)
915	int alloced = 0, size = 0, i = 0;	{
916	char * buf = NULL;	int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919	do {	do {
920	size += i;	size += i;
921	if ((size + 1024) > alloced) {	if ((size + 1024) > alloced) {
922	alloced += 4096;	alloced += 4096;
923	buf = realloc(buf, alloced + 1);	buf = realloc(buf, alloced + 1);
924	}	}
925	} while ((i = read(fd, buf + size, 1024)) > 0);	} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	if (i < 0) {	if (i < 0) {
928	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));	fprintf(stderr, _("error reading input: %s\n"),
929	free(buf);	strerror(errno));
930	return 1;	free(buf);
931	}	return 1;
932		}
933
934	buf = realloc(buf, size + 2);	buf = realloc(buf, size + 2);
935	if (size == 0)	if (size == 0)
936	buf[size++] = '\n';	buf[size++] = '\n';
937	else	else if (buf[size - 1] != '\n')
938	if (buf[size - 1] != '\n')	buf[size++] = '\n';
939	buf[size++] = '\n';	buf[size] = '\0';
	buf[size] = '\0';
940
941	*bufPtr = buf;	*bufPtr = buf;
942
943	return 0;	return 0;
944	}	}
945
946	static void lineInit(struct singleLine * line) {	static void lineInit(struct singleLine *line)
947	line->indent = NULL;	{
948	line->elements = NULL;	line->type = LT_UNIDENTIFIED;
949	line->numElements = 0;	line->indent = NULL;
950	line->next = NULL;	line->elements = NULL;
951	}	line->numElements = 0;
952		line->next = NULL;
	struct singleLine * lineDup(struct singleLine * line) {
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
	return newLine;
953	}	}
954
955	static void lineFree(struct singleLine * line) {	struct singleLine *lineDup(struct singleLine *line)
956	if (line->indent) free(line->indent);	{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	free(line->elements[i].item);	newLine->next = NULL;
961	free(line->elements[i].indent);	newLine->type = line->type;
962	}	newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (line->elements) free(line->elements);	for (int i = 0; i < newLine->numElements; i++) {
967	lineInit(line);	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	}	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	static int lineWrite(FILE * out, struct singleLine * line,	return newLine;
972	struct configFileInfo * cfi) {	}
	if (fprintf(out, "%s", line->indent) == -1) return -1;
973
974	for (int i = 0; i < line->numElements; i++) {	static void lineFree(struct singleLine *line)
975	/* Need to handle this, because we strip the quotes from	{
976	* menuentry when read it. */	if (line->indent)
977	if (line->type == LT_MENUENTRY && i == 1) {	free(line->indent);
	if(!isquote(*line->elements[i].item))
	fprintf(out, "\'%s\'", line->elements[i].item);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
978
979	continue;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982	}	}
983
984	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	if (line->elements)
985	if (fputc('"', out) == EOF) return -1;	free(line->elements);
986		lineInit(line);
987		}
988
989	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	static int lineWrite(FILE * out, struct singleLine *line,
990	if (i < line->numElements - 1)	struct configFileInfo *cfi)
991	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	{
992	}	if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995		for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	continue;
1023	if (fputc('"', out) == EOF) return -1;	}
1024
1025	if (fprintf(out, "\n") == -1) return -1;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	return 0;	if (fprintf(out, "\n") == -1)
1041		return -1;
1042
1043		return 0;
1044	}	}
1045
1046	/* we've guaranteed that the buffer ends w/ \n\0 */	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
1049	char * end;	{
1050	char * start = *bufPtr;	char *end;
1051	char * chptr;	char *start = *bufPtr;
1052	int elementsAlloced = 0;	char *chptr;
1053	struct lineElement * element;	int elementsAlloced = 0;
1054	int first = 1;	struct lineElement *element;
1055		int first = 1;
1056
1057	lineFree(line);	lineFree(line);
1058
1059	end = strchr(start, '\n');	end = strchr(start, '\n');
1060	*end = '\0';	*end = '\0';
1061	*bufPtr = end + 1;	*bufPtr = end + 1;
1062
1063	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
1064
1065	line->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	while (start < end) {	while (start < end) {
1069	/* we know !isspace(*start) */	/* we know !isspace(*start) */
1070
1071	if (elementsAlloced == line->numElements) {	if (elementsAlloced == line->numElements) {
1072	elementsAlloced += 5;	elementsAlloced += 5;
1073	line->elements = realloc(line->elements,	line->elements = realloc(line->elements,
1074	sizeof(*line->elements) * elementsAlloced);	sizeof(*line->elements) *
1075	}	elementsAlloced);
1076		}
1077
1078	element = line->elements + line->numElements;	element = line->elements + line->numElements;
1079
1080	chptr = start;	chptr = start;
1081	while (*chptr && !isspace(*chptr)) {	while (*chptr && !isspace(*chptr)) {
1082	if (first && *chptr == '=') break;	if (first && *chptr == '=')
1083	chptr++;	break;
1084	}	chptr++;
1085	element->item = strndup(start, chptr - start);	}
1086	start = chptr;	if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098	/* lilo actually accepts the pathological case of append = " foo " */	do {
1099	if (*start == '=')	for (; *chptr && isspace(*chptr); chptr++) ;
1100	chptr = start + 1;	if (*chptr == '=')
1101	else	chptr = chptr + 1;
1102	chptr = start;	} while (isspace(*chptr));
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1103
1104	element->indent = strndup(start, chptr - start);	element->indent = strndup(start, chptr - start);
1105	start = chptr;	start = chptr;
1106
1107	line->numElements++;	line->numElements++;
1108	first = 0;	first = 0;
1109	}	}
1110
1111	if (!line->numElements)	if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	else {	else {
1114	line->type = getTypeByKeyword(line->elements[0].item, cfi);	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	if (line->type == LT_UNKNOWN) {	if (line->type == LT_UNKNOWN) {
1116	/* zipl does [title] instead of something reasonable like all	/* zipl does [title] instead of something reasonable
1117	* the other boot loaders.  kind of ugly */	* like all the other boot loaders.  kind of ugly */
1118	if (cfi->titleBracketed && isBracketedTitle(line)) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	line->type = LT_TITLE;	line->type = LT_TITLE;
1120	}	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1121
1122	fullLine = malloc(len + 1);	/* this is awkward, but we need to be able to handle
1123	strcpy(fullLine, line->indent);	* keywords that begin with a # (specifically for
1124	free(line->indent);	* #boot in grub.conf), but still make comments lines
1125	line->indent = fullLine;	* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	for (int i = 0; i < line->numElements; i++) {	line->type = LT_WHITESPACE;
1151	strcat(fullLine, line->elements[i].item);	line->numElements = 0;
1152	strcat(fullLine, line->elements[i].indent);	}
1153	free(line->elements[i].item);	} else if (line->type == LT_INITRD) {
1154	free(line->elements[i].indent);	struct keywordTypes *kw;
	}
1155
1156	line->type = LT_WHITESPACE;	kw = getKeywordByType(line->type, cfi);
	line->numElements = 0;
	}
	} else {
	struct keywordTypes *kw;
1157
1158	kw = getKeywordByType(line->type, cfi);	/* space isn't the only separator, we need to split
1159		* elements up more
1160		*/
1161		if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	/* space isn't the only separator, we need to split	for (int j = line->numElements; j > i;
1187	* elements up more	j--) {
1188	*/	line->elements[j +
1189	if (!isspace(kw->separatorChar)) {	numNewElements] =
1190	char indent[2] = "";	line->elements[j];
1191	indent[0] = kw->separatorChar;	}
1192	for (int i = 1; i < line->numElements; i++) {	line->numElements += numNewElements;
	char *p;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (int j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
	}
	line->numElements += numNewElements;
1193
1194	p = line->elements[i].item;	p = line->elements[i].item;
1195	while (*p != '\0') {	while (*p != '\0') {
1196
1197	while (*p != kw->separatorChar && *p != '\0') p++;	while (*p != kw->separatorChar
1198	if (*p == '\0') {	&& *p != '\0')
1199	break;	p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213	}	}
	line->elements[i + 1].indent = line->elements[i].indent;
	line->elements[i].indent = strdup(indent);
	*p++ = '\0';
	i++;
	line->elements[i].item = strdup(p);
1214	}	}
1215	}	} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static 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	}	}
	}
	return 0;
	}
1581
1582	static int numEntries(struct grubConfig *cfg) {	free(incoming);
1583	int i = 0;
1584	struct singleEntry * entry;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586	entry = cfg->entries;	if (defaultLine->numElements > 2 &&
1587	while (entry) {	cfi->defaultSupportSaved &&
1588	if (!entry->skip)	!strncmp(defaultLine->elements[2].item,
1589	i++;	"\"${saved_entry}\"", 16)) {
1590	entry = entry->next;	cfg->cfi->defaultIsSaved = 1;
1591	}	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592	return i;	if (cfg->cfi->getEnv) {
1593	}	char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701		{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
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		outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828		tmpOutName = alloca(strlen(outName) + 2);
1829		sprintf(tmpOutName, "%s-", outName);
1830		out = fopen(tmpOutName, "w");
1831		if (!out) {
1832		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833		tmpOutName, strerror(errno));
1834		return 1;
1835		}
1836
1837		if (!stat(outName, &sb)) {
1838		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850		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		static int numEntries(struct grubConfig *cfg)
1922		{
1923		int i = 0;
1924		struct singleEntry *entry;
1925
1926		entry = cfg->entries;
1927		while (entry) {
1928		if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931		}
1932		return i;
1933		}
1934
1935	static char *findDiskForRoot()	static char *findDiskForRoot()
1936	{	{
1937	int fd;	int fd;
1938	char buf[65536];	char buf[65536];
1939	char *devname;	char *devname;
1940	char *chptr;	char *chptr;
1941	int rc;	int rc;
1942
1943		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944		fprintf(stderr, "grubby: failed to open %s: %s\n",
1945		_PATH_MOUNTED, strerror(errno));
1946		return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955		}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1961
1962	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1963	if (rc <= 0) {	devname = chptr;
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	char *foundanswer = NULL;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/* remember the last / entry in mtab */
	foundanswer = devname;
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1964
1965	/* Return the last / entry found */	/*
1966	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1967	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1968	*chptr = '\0';	* on to the next line.
1969	return strdup(foundanswer);	*/
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	return NULL;	/*
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) {	void printEntry(struct singleEntry *entry, FILE * f)
2011	int i;	{
2012	struct singleLine * line;	int i;
2013		struct singleLine *line;
2014
2015	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2016	log_message(f, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2017	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2018	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2019	* menuentry when read it. */	* menuentry when read it. */
2020	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2021	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2022	log_message(f, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2023	else	line->elements[i].item);
2024	log_message(f, "%s", line->elements[i].item);	else
2025	log_message(f, "%s", line->elements[i].indent);	log_message(f, "%s",
2026		line->elements[i].item);
2027	continue;	log_message(f, "%s", line->elements[i].indent);
2028	}
2029		continue;
2030	log_message(f, "%s%s",	}
2031	line->elements[i].item, line->elements[i].indent);
2032		log_message(f, "%s%s",
2033		line->elements[i].item,
2034		line->elements[i].indent);
2035		}
2036		log_message(f, "\n");
2037	}	}
	log_message(f, "\n");
	}
2038	}	}
2039
2040	void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042	{	{
2043	static int once;	static int once;
2044	va_list argp, argq;	va_list argp, argq;
2045
2046	va_start(argp, fmt);	va_start(argp, fmt);
2047
2048	va_copy(argq, argp);	va_copy(argq, argp);
2049	if (!once) {	if (!once) {
2050	log_time(NULL);	log_time(NULL);
2051	log_message(NULL, "command line: %s\n", saved_command_line);	log_message(NULL, "command line: %s\n", saved_command_line);
2052	}	}
2053	log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed");	log_message(NULL, "DBG: Image entry %s: ",
2054	log_vmessage(NULL, fmt, argq);	okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
	printEntry(entry, NULL);
	va_end(argq);
2056
2057	if (!debug) {	printEntry(entry, NULL);
2058	once = 1;	va_end(argq);
	va_end(argp);
	return;
	}
2059
2060	if (okay) {	if (!debug) {
2061	va_end(argp);	once = 1;
2062	return;	va_end(argp);
2063	}	return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071	if (!once)	if (!once)
2072	log_message(stderr, "DBG: command line: %s\n", saved_command_line);	log_message(stderr, "DBG: command line: %s\n",
2073	once = 1;	saved_command_line);
2074	fprintf(stderr, "DBG: Image entry failed: ");	once = 1;
2075	vfprintf(stderr, fmt, argp);	fprintf(stderr, "DBG: Image entry failed: ");
2076	printEntry(entry, stderr);	vfprintf(stderr, fmt, argp);
2077	va_end(argp);	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 1818  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|LT_KERNEL_16, 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|LT_KERNEL_16, 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|LT_KERNEL_16;	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;	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|LT_KERNEL_16, 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;
	entry = cfg->entries;
	while (index && entry) {
	entry = entry->next;
	index--;
	}
2398
2399	return entry;	entry = cfg->entries;
2400		while (index && entry) {
2401		entry = entry->next;
2402		index--;
2403		}
2404
2405		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 2098  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;
2468		}
2469
2470	return entry;	index++;
2471	}	}
2472
2473	index++;	fprintf(stderr,
2474	}	_("grubby fatal error: unable to find a suitable template\n"));
	fprintf(stderr, _("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	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2515
2516	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	/* we can preserve the default */	entry->skip = 1;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
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;
	}
2527
2528	if (hasNew)	/* initialize */
2529	config->fallbackImage++;	currentLookupIndex = FIRST_ENTRY_INDEX;
	/* 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--;
	}
	}
	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {
	struct singleLine * line;
	char * root = NULL;
	int i;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2530
2531	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* handle the two cases where the user explictly picks the default
2532	printf("kernel=%s\n", line->elements[1].item);	* boot entry index as it would exist post-modification */
	else
	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	if (line->numElements >= 3) {
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2533
2534	i++;	/* Case 1: user chose to make the latest boot entry the default */
2535		if (newBootEntryIsDefault) {
2536		config->defaultImage = newBootEntryIndex;
2537		return;
2538	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2539
2540	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2541	i = 1;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2542	while (i < line->numElements) {	indexToVerify = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2543
2544	printf("%s%s", s, line->elements[i].indent);	/* user chose to make latest boot entry the default */
2545		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2546		config->defaultImage = newBootEntryIndex;
2547		return;
2548	}	}
2549
2550	i++;	/* the user picks the default index based on the
2551	}	* order of the bootloader configuration after
2552		* modification; ensure we are checking for the
2553		* existence of the correct entry */
2554		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2555		if (!config->isModified)
2556		indexToVerify--;
2557		}
2558
2559	s = line->elements[i - 1].indent;	/* verify the user selected index will exist */
2560	printf("\"\n");	if (findEntryByIndex(config, indexToVerify)) {
2561	}	config->defaultImage = newDefaultBootEntryIndex;
2562	}	} else {
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564		}
2565
2566	if (!root) {	return;
2567	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2568
2569	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);
	}
2570
2571	line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, entry->lines);	/* check validity of existing default or first-entry-found
2572		selection */
2573		if (defaultKernelPath) {
2574		/* we must initialize this */
2575		firstKernelEntryIndex = 0;
2576		/* user requested first-entry-found */
2577		if (!findEntryByPath(config, defaultKernelPath,
2578		prefix, &firstKernelEntryIndex)) {
2579		/* don't change default if can't find match */
2580		config->defaultImage = NO_DEFAULT_ENTRY;
2581		return;
2582		}
2583
2584	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2585
2586	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2587	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2588
2589	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2590	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2591	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2592	} else {	config->defaultImage++;
2593	char * title;	}
2594	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2595	title = grub2ExtractTitle(line);	/* check to see if the default is stored in the environment */
2596	if (title)	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2597	printf("title=%s\n", title);	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2598	}	{
2599	}	if (config->cfi->defaultIsSaved) {
2600		if (config->cfi->getEnv) {
2601		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2602
2603		if (defaultTitle) {
2604		if (isnumber(defaultTitle)) {
2605		currentLookupIndex = atoi(defaultTitle);
2606		} else {
2607		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2608		}
2609		/* set the default Image to an actual index */
2610		config->defaultImage = currentLookupIndex;
2611		}
2612		}
2613		}
2614		}
2615		} else {
2616		/* use pre-existing default entry from the file*/
2617		currentLookupIndex = config->defaultImage;
2618		}
2619
2620	int isSuseSystem(void) {	if (isAddingBootEntry
2621	const char * path;	&& (newBootEntryIndex <= config->defaultImage)) {
2622	const static char default_path[] = "/etc/SuSE-release";	config->defaultImage++;
2623
2624	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	if (config->isModified) {
2625	path = default_path;	currentLookupIndex++;
2626		}
2627		}
2628		}
2629
2630	if (!access(path, R_OK))	/* sanity check - is this entry index valid? */
2631	return 1;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	return 0;
	}
2632
2633	int isSuseGrubConf(const char * path) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2634	FILE * grubConf;	/* entry is to be skipped or is invalid */
2635	char * line = NULL;	if (isAddingBootEntry) {
2636	size_t len = 0, res = 0;	config->defaultImage = newBootEntryIndex;
2637		return;
2638	grubConf = fopen(path, "r");	}
2639	if (!grubConf) {	newDefault =
2640	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	findTemplate(config, prefix, &config->defaultImage, 1,
2641	return 0;	flags);
2642	}	if (!newDefault) {
2643		config->defaultImage = NO_DEFAULT_ENTRY;
2644		}
2645
2646	while ((res = getline(&line, &len, grubConf)) != -1) {	return;
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
2647	}	}
	}
2648
2649	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	currentLookupIndex--;
	path);
2650
2651	fclose(grubConf);	/* decrement index by the total number of entries deleted */
	free(line);
	return 0;
	}
2652
2653	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (indexToVerify = currentLookupIndex;
2654	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';
	}
2655
2656	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;
	}
	}
2657
2658	free(line);	if (bootEntry && bootEntry->skip) {
2659	fclose(grubConf);	config->defaultImage--;
2660	return 0;	}
2661		}
2662	}	}
2663
2664	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2665	FILE * grubConf;	{
2666	char * line = NULL;	struct singleEntry *entry, *entry2;
2667	size_t res = 0, len = 0;	int j;
2668	char * lastParamPtr = NULL;
2669	char * secLastParamPtr = NULL;	if (config->fallbackImage == -1)
2670	char installDeviceNumber = '\0';	return;
2671	char * bounds = NULL;
2672		entry = findEntryByIndex(config, config->fallbackImage);
2673	if (!path) return 1;	if (!entry || entry->skip) {
2674	if (!devicePtr) return 1;	config->fallbackImage = -1;
2675		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';
2676	}	}
2677
2678	lastParamPtr = bounds = line + res;	if (hasNew)
2679		config->fallbackImage++;
2680
2681		/* count the number of entries erased before this one */
2682		for (j = 0; j < config->fallbackImage; j++) {
2683		entry2 = findEntryByIndex(config, j);
2684		if (entry2->skip)
2685		config->fallbackImage--;
2686		}
2687		}
2688
2689	/* Last parameter in grub may be an optional IMAGE_DEVICE */	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2690	while (!isspace(*lastParamPtr))	{
2691	lastParamPtr--;	struct singleLine *line;
2692	lastParamPtr++;	char *root = NULL;
2693		int i;
2694		int j;
2695
2696	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2697
2698	if (lastParamPtr + 3 > bounds) {	line =
2699	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2700	fclose(grubConf);	entry->lines);
2701	free(line);	if (!line) {
2702	return 1;	printf("non linux entry\n");
2703		return;
2704	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2705
2706	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2707	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2708	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2709	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2710	while (!isspace(*secLastParamPtr))
2711	secLastParamPtr--;	if (line->numElements >= 3) {
2712	secLastParamPtr++;	printf("args=\"");
2713		i = 2;
2714	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2715	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2716	fclose(grubConf);	root = line->elements[i].item + 5;
2717	free(line);	} else {
2718	return 1;	printf("%s%s", line->elements[i].item,
2719	}	line->elements[i].indent);
2720	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2721	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2722	secLastParamPtr += 3;	i++;
2723	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2724	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
2725	} else {	} else {
2726	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2727		if (line) {
2728		char *s;
2729
2730		printf("args=\"");
2731		i = 1;
2732		while (i < line->numElements) {
2733		if (!strncmp
2734		(line->elements[i].item, "root=", 5)) {
2735		root = line->elements[i].item + 5;
2736		} else {
2737		s = line->elements[i].item;
2738
2739		printf("%s%s", s,
2740		line->elements[i].indent);
2741		}
2742
2743		i++;
2744		}
2745
2746		s = line->elements[i - 1].indent;
2747		printf("\"\n");
2748		}
2749	}	}
2750
2751	*devicePtr = malloc(6);	if (!root) {
2752	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2753	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2754	fclose(grubConf);	root = line->elements[1].item;
2755	free(line);	}
	return 0;
	}
2756
2757	free(line);	if (root) {
2758	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;
2759
2760	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2761	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2762	continue;	s[strlen(s) - 1] = '\0';
2763		/* make sure the root doesn't have a trailing " */
2764	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';
2765	}	}
2766
2767	devicePtr = line;	line =
2768	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2769		entry->lines);
2770
2771	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2772	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2773	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2774		else
2775		printf("initrd=%s", prefix);
2776
2777	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2778	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2779	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2780	devicePtr++;	printf("\n");
2781		}
2782
2783	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2784	break;	if (line) {
2785		char *entryTitle;
2786		/* if we can extractTitle, then it's a zipl config and
2787		* if not then we go ahead with what's existed prior */
2788		entryTitle = extractTitle(config, line);
2789		if (!entryTitle) {
2790		entryTitle=line->elements[1].item;
2791		}
2792		printf("title=%s\n", entryTitle);
2793		} else {
2794		char *title;
2795		line = getLineByType(LT_MENUENTRY, entry->lines);
2796		if (line) {
2797		title = grub2ExtractTitle(line);
2798		if (title)
2799		printf("title=%s\n", title);
2800		}
2801	}	}
	}
2802
2803	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2804	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2805	return 0;	if (!strncmp
2806		(prefix, line->elements[1].item, strlen(prefix)))
2807		printf("mbmodule%d=", j);
2808		else
2809		printf("mbmodule%d=%s", j, prefix);
2810
2811		for (i = 1; i < line->numElements; i++)
2812		printf("%s%s", line->elements[i].item,
2813		line->elements[i].indent);
2814		printf("\n");
2815		j++;
2816		}
2817		}
2818	}	}
2819
2820	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2821	char * grubDevice;	{
2822		const char *path;
2823		const static char default_path[] = "/etc/SuSE-release";
2824
2825	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2826	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);
2827
2828	free(grubDevice);	if (!access(path, R_OK))
2829	return 0;	return 1;
2830		return 0;
2831	}	}
2832
2833	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2834	/*	{
2835	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2836	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2837	* grub on that system.	size_t len = 0, res = 0;
2838	*/
2839	const char * path;	grubConf = fopen(path, "r");
2840	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2841		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2842	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2843	path = default_path;	return 0;
2844		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2845
2846	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2847	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2848	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2849	}	free(line);
2850		return 1;
2851		}
2852		}
2853
2854	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2855		path);
2856
2857		fclose(grubConf);
2858		free(line);
2859		return 0;
2860	}	}
2861
2862	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2863	FILE * in;	{
2864	char buf[1024];	FILE *grubConf;
2865	char * chptr;	char *line = NULL;
2866	char * start;	size_t res = 0, len = 0;
2867	char * param;
2868		if (!path)
2869	in = fopen("/etc/conf.d/grub", "r");	return 1;
2870	if (!in) return 1;	if (!lbaPtr)
2871		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);
	}
2872
2873	fclose(in);	grubConf = fopen(path, "r");
2874		if (!grubConf)
2875		return 1;
2876
2877	return 0;	while ((res = getline(&line, &len, grubConf)) != -1) {
2878	}	if (line[res - 1] == '\n')
2879		line[res - 1] = '\0';
2880		else if (len > res)
2881		line[res] = '\0';
2882		else {
2883		line = realloc(line, res + 1);
2884		line[res] = '\0';
2885		}
2886
2887	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2888	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2889	int lba;	*lbaPtr = 1;
2890		} else {
2891	if (isSuseSystem()) {	*lbaPtr = 0;
2892	if (parseSuseGrubConf(&lba, &boot)) {	}
2893	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2894	return;	break;
2895	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2896	}	}
	}
2897
2898	if (lba) printf("lba\n");	free(line);
2899	if (boot) {	fclose(grubConf);
2900	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2901	}	}
2902
2903	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2904	const char * prefix) {	{
2905	int i = 0;	FILE *grubConf;
2906	struct singleEntry * entry;	char *line = NULL;
2907	struct singleLine * line;	size_t res = 0, len = 0;
2908		char *lastParamPtr = NULL;
2909	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2910	if (!entry) {	char installDeviceNumber = '\0';
2911	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
2912
2913	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (!path)
2914	be a better way */	return 1;
2915	if (config->cfi == &grubConfigType) {	if (!devicePtr)
2916	dumpSysconfigGrub();	return 1;
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2917
2918	line = getLineByType(LT_LBA, config->theLines);	grubConf = fopen(path, "r");
2919	if (line) printf("lba\n");	if (!grubConf)
2920	}	return 1;
2921
2922	displayEntry(entry, prefix, i);	while ((res = getline(&line, &len, grubConf)) != -1) {
2923		if (strncmp(line, "setup", 5))
2924		continue;
2925
2926		if (line[res - 1] == '\n')
2927		line[res - 1] = '\0';
2928		else if (len > res)
2929		line[res] = '\0';
2930		else {
2931		line = realloc(line, res + 1);
2932		line[res] = '\0';
2933		}
2934
2935	i++;	lastParamPtr = bounds = line + res;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
2936
2937	return 0;	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2938		while (!isspace(*lastParamPtr))
2939		lastParamPtr--;
2940		lastParamPtr++;
2941
2942		secLastParamPtr = lastParamPtr - 2;
2943		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2944
2945		if (lastParamPtr + 3 > bounds) {
2946		dbgPrintf("lastParamPtr going over boundary");
2947		fclose(grubConf);
2948		free(line);
2949		return 1;
2950		}
2951		if (!strncmp(lastParamPtr, "(hd", 3))
2952		lastParamPtr += 3;
2953		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2954
2955		/*
2956		* Second last parameter will decide wether last parameter is
2957		* an IMAGE_DEVICE or INSTALL_DEVICE
2958		*/
2959		while (!isspace(*secLastParamPtr))
2960		secLastParamPtr--;
2961		secLastParamPtr++;
2962
2963		if (secLastParamPtr + 3 > bounds) {
2964		dbgPrintf("secLastParamPtr going over boundary");
2965		fclose(grubConf);
2966		free(line);
2967		return 1;
2968		}
2969		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2970		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2971		secLastParamPtr += 3;
2972		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2973		installDeviceNumber = *secLastParamPtr;
2974		} else {
2975		installDeviceNumber = *lastParamPtr;
2976		}
2977
2978		*devicePtr = malloc(6);
2979		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2980		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2981		fclose(grubConf);
2982		free(line);
2983		return 0;
2984		}
2985
2986		free(line);
2987		fclose(grubConf);
2988		return 1;
2989	}	}
2990
2991	struct singleLine * addLineTmpl(struct singleEntry * entry,	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2992	struct singleLine * tmplLine,	{
2993	struct singleLine * prevLine,	FILE *deviceMap;
2994	const char * val,	char *line = NULL;
2995	struct configFileInfo * cfi)	size_t res = 0, len = 0;
2996	{	char *devicePtr;
2997	struct singleLine * newLine = lineDup(tmplLine);	char *bounds = NULL;
2998		const char *path;
2999	if (isEfi && cfi == &grub2ConfigType) {	const static char default_path[] = "/boot/grub/device.map";
	enum lineType_e old = newLine->type;
	newLine->type = preferredLineType(newLine->type, cfi);
	if (old != newLine->type)
	newLine->elements[0].item = getKeyByType(newLine->type, cfi);
	}
3000
3001	if (val) {	if (!device)
3002	/* override the inherited value with our own.	return 1;
3003	* This is a little weak because it only applies to elements[1]	if (!bootPtr)
3004	*/	return 1;
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD|LT_KERNEL_EFI|LT_INITRD_EFI|LT_KERNEL_16|LT_INITRD_16)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
	}
	}
3005
3006	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3007	newLine->elements[0].item : "");	path = default_path;
3008
3009	if (!entry->lines) {	dbgPrintf("opening grub device.map file from: %s\n", path);
3010	/* first one on the list */	deviceMap = fopen(path, "r");
3011	entry->lines = newLine;	if (!deviceMap)
3012	} else if (prevLine) {	return 1;
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
3013
3014	return newLine;	while ((res = getline(&line, &len, deviceMap)) != -1) {
3015	}	if (!strncmp(line, "#", 1))
3016		continue;
3017
3018		if (line[res - 1] == '\n')
3019		line[res - 1] = '\0';
3020		else if (len > res)
3021		line[res] = '\0';
3022		else {
3023		line = realloc(line, res + 1);
3024		line[res] = '\0';
3025		}
3026
3027	/* val may be NULL */	devicePtr = line;
3028	struct singleLine *  addLine(struct singleEntry * entry,	bounds = line + res;
3029	struct configFileInfo * cfi,
3030	enum lineType_e type, char * defaultIndent,	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3031	const char * val) {	devicePtr++;
3032	struct singleLine * line, * prev;	dbgPrintf("device: %s\n", devicePtr);
3033	struct keywordTypes * kw;
3034	struct singleLine tmpl;	if (!strncmp(devicePtr, device, strlen(device))) {
3035		devicePtr += strlen(device);
3036	/* NB: This function shouldn't allocate items on the heap, rather on the	while (isspace(*devicePtr)
3037	* stack since it calls addLineTmpl which will make copies.	&& ((devicePtr + 1) <= bounds))
3038	*/	devicePtr++;
3039	if (type == LT_TITLE && cfi->titleBracketed) {
3040	/* we're doing a bracketed title (zipl) */	*bootPtr = strdup(devicePtr);
3041	tmpl.type = type;	break;
3042	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 = "";
3043	}	}
	}
3044
3045	/* The last non-empty line gives us the indention to us and the line	free(line);
3046	to insert after. Note that comments are considered empty lines, which	fclose(deviceMap);
3047	may not be ideal? If there are no lines or we are looking at the	return 0;
3048	first line, we use defaultIndent (the first line is normally indented	}
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
3049
3050	struct singleLine *menuEntry;	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3051	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	{
3052	if (tmpl.type == LT_ENTRY_END) {	char *grubDevice;
3053	if (menuEntry)
3054	tmpl.indent = menuEntry->indent;	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3055		dbgPrintf("error looking for grub installation device\n");
3056	else	else
3057	tmpl.indent = defaultIndent ?: "";	dbgPrintf("grubby installation device: %s\n", grubDevice);
3058	} else if (tmpl.type != LT_MENUENTRY) {
3059	if (menuEntry)	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3060	tmpl.indent = "\t";	dbgPrintf("error looking for grub boot device\n");
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
3061	else	else
3062	tmpl.indent = prev->indent;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	}
3063
3064	return addLineTmpl(entry, &tmpl, prev, val, cfi);	free(grubDevice);
3065		return 0;
3066	}	}
3067
3068	void removeLine(struct singleEntry * entry, struct singleLine * line) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3069	struct singleLine * prev;	{
3070	int i;	/*
3071		* This SuSE grub configuration file at this location is not your
3072		* average grub configuration file, but instead the grub commands
3073		* used to setup grub on that system.
3074		*/
3075		const char *path;
3076		const static char default_path[] = "/etc/grub.conf";
3077
3078	for (i = 0; i < line->numElements; i++) {	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3079	free(line->elements[i].item);	path = default_path;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
3080
3081	if (line == entry->lines) {	if (!isSuseGrubConf(path))
3082	entry->lines = line->next;	return 1;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3083
3084	free(line);	if (lbaPtr) {
3085	}	*lbaPtr = 0;
3086		if (suseGrubConfGetLba(path, lbaPtr))
3087		return 1;
3088		}
3089
3090	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	if (bootPtr) {
3091	{	*bootPtr = NULL;
3092	struct singleLine newLine = {	suseGrubConfGetBoot(path, bootPtr);
	.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;
	}
3093	}	}
	}
	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;
	}
3094
3095	line->elements = realloc(line->elements, (line->numElements + 1) *	return 0;
3096	sizeof(*line->elements));	}
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
3097
3098	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3099	/* move the end-of-line forward */	{
3100	line->elements[insertHere].indent =	FILE *in;
3101	line->elements[insertHere-1].indent;	char buf[1024];
3102	line->elements[insertHere-1].indent = strdup(indent);	char *chptr;
3103	} else {	char *start;
3104	line->elements[insertHere].indent = strdup(indent);	char *param;
	}
3105
3106	line->numElements++;	in = fopen("/etc/sysconfig/grub", "r");
3107		if (!in)
3108		return 1;
3109
3110	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	if (lbaPtr)
3111	line->elements[0].item,	*lbaPtr = 0;
3112	line->elements[insertHere].item,	if (bootPtr)
3113	line->elements[insertHere].indent,	*bootPtr = NULL;
3114	insertHere);
3115	}	while (fgets(buf, sizeof(buf), in)) {
3116		start = buf;
3117		while (isspace(*start))
3118		start++;
3119		if (*start == '#')
3120		continue;
3121
3122		chptr = strchr(start, '=');
3123		if (!chptr)
3124		continue;
3125		chptr--;
3126		while (*chptr && isspace(*chptr))
3127		chptr--;
3128		chptr++;
3129		*chptr = '\0';
3130
3131		param = chptr + 1;
3132		while (*param && isspace(*param))
3133		param++;
3134		if (*param == '=') {
3135		param++;
3136		while (*param && isspace(*param))
3137		param++;
3138		}
3139
3140	static void removeElement(struct singleLine * line, int removeHere) {	chptr = param;
3141	int i;	while (*chptr && !isspace(*chptr))
3142		chptr++;
3143		*chptr = '\0';
3144
3145		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3146		*lbaPtr = 1;
3147		else if (!strcmp(start, "boot") && bootPtr)
3148		*bootPtr = strdup(param);
3149		}
3150
3151	/* sanity check */	fclose(in);
	if (removeHere >= line->numElements) return;
3152
3153	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	return 0;
3154	removeHere, line->elements[removeHere].item);	}
3155
3156	free(line->elements[removeHere].item);	void dumpSysconfigGrub(void)
3157		{
3158		char *boot = NULL;
3159		int lba;
3160
3161	if (removeHere > 1) {	if (isSuseSystem()) {
3162	/* previous argument gets this argument's post-indentation */	if (parseSuseGrubConf(&lba, &boot)) {
3163	free(line->elements[removeHere-1].indent);	free(boot);
3164	line->elements[removeHere-1].indent =	return;
3165	line->elements[removeHere].indent;	}
3166	} else {	} else {
3167	free(line->elements[removeHere].indent);	if (parseSysconfigGrub(&lba, &boot)) {
3168	}	free(boot);
3169		return;
3170		}
3171		}
3172
3173	/* now collapse the array, but don't bother to realloc smaller */	if (lba)
3174	for (i = removeHere; i < line->numElements - 1; i++)	printf("lba\n");
3175	line->elements[i] = line->elements[i + 1];	if (boot) {
3176		printf("boot=%s\n", boot);
3177	line->numElements--;	free(boot);
	}
	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;
3178	}	}
3179	}	}
3180
3181	if (!removeArgs) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3182	oldArgs = malloc(sizeof(*oldArgs));	{
3183	*oldArgs = NULL;	int i = 0;
3184	} else {	struct singleEntry *entry;
3185	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	struct singleLine *line;
3186	fprintf(stderr,
3187	_("grubby: error separating arguments '%s'\n"), removeArgs);	entry = findEntryByPath(config, kernel, prefix, &i);
3188	free(newArgs);	if (!entry) {
3189	return 1;	fprintf(stderr, _("grubby: kernel not found\n"));
3190		return 1;
3191	}	}
	}
3192
3193		/* this is a horrible hack to support /etc/sysconfig/grub; there must
3194		be a better way */
3195		if (config->cfi == &grubConfigType) {
3196		dumpSysconfigGrub();
3197		} else {
3198		line = getLineByType(LT_BOOT, config->theLines);
3199		if (line && line->numElements >= 1) {
3200		printf("boot=%s\n", line->elements[1].item);
3201		}
3202
3203	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	line = getLineByType(LT_LBA, config->theLines);
3204	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	if (line)
3205		printf("lba\n");
3206		}
3207
3208	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	displayEntry(config, entry, prefix, i);
	&& !multibootArgs);
3209
3210	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	i++;
3211		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3212		displayEntry(config, entry, prefix, i);
3213		i++;
3214		}
3215
3216	if (multibootArgs && !entry->multiboot)	return 0;
3217	continue;	}
3218
3219	/* Determine where to put the args.  If this config supports	struct singleLine *addLineTmpl(struct singleEntry *entry,
3220	* LT_KERNELARGS, use that.  Otherwise use	struct singleLine *tmplLine,
3221	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	struct singleLine *prevLine,
3222	*/	const char *val, struct configFileInfo *cfi)
3223	if (useKernelArgs) {	{
3224	line = getLineByType(LT_KERNELARGS, entry->lines);	struct singleLine *newLine = lineDup(tmplLine);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
3225
3226	} else {	if (isEfi && cfi == &grub2ConfigType) {
3227	line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);	enum lineType_e old = newLine->type;
3228	if (!line) {	newLine->type = preferredLineType(newLine->type, cfi);
3229	/* no LT_KERNEL or LT_MBMODULE in this entry? */	if (old != newLine->type)
3230	continue;	newLine->elements[0].item =
3231	}	getKeyByType(newLine->type, cfi);
	firstElement = 2;
3232	}	}
3233
3234	/* handle the elilo case which does:	if (val) {
3235	*   append="hypervisor args -- kernel args"	/* override the inherited value with our own.
3236	*/	* This is a little weak because it only applies to elements[1]
	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
3237	*/	*/
3238	insertElement(line, "--", firstElement, cfg->cfi);	if (newLine->numElements > 1)
3239	i = firstElement;	removeElement(newLine, 1);
3240	}	insertElement(newLine, val, 1, cfi);
3241	if (!multibootArgs) {
3242	/* kernel args start after the -- */	/* but try to keep the rootspec from the template... sigh */
3243	firstElement = i + 1;	if (tmplLine->
3244	}	type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3245	} else if (cfg->cfi->mbConcatArgs) {	LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3246	/* this is a non-multiboot entry, remove hyper args */	LT_INITRD_16)) {
3247	for (i = firstElement; i < line->numElements; i++) {	char *rootspec =
3248	if (!strcmp(line->elements[i].item, "--"))	getRootSpecifier(tmplLine->elements[1].item);
3249	break;	if (rootspec != NULL) {
3250	}	free(newLine->elements[1].item);
3251	if (i < line->numElements) {	newLine->elements[1].item =
3252	/* remove args up to -- */	sdupprintf("%s%s", rootspec, val);
3253	while (strcmp(line->elements[firstElement].item, "--"))	}
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
	if (i < line->numElements && doreplace) {
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
	/* root= replacement */
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
3254	}	}
	}
	else {
	/* insert/append */
	insertElement(line, *arg, i, cfg->cfi);
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
3255	}	}
	}
3256
3257	free(newArgs);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3258	free(oldArgs);	newLine->elements[0].item : "");
3259
3260	return 0;	if (!entry->lines) {
3261		/* first one on the list */
3262		entry->lines = newLine;
3263		} else if (prevLine) {
3264		/* add after prevLine */
3265		newLine->next = prevLine->next;
3266		prevLine->next = newLine;
3267		}
3268
3269		return newLine;
3270	}	}
3271
3272	int updateImage(struct grubConfig * cfg, const char * image,	/* val may be NULL */
3273	const char * prefix, const char * addArgs,	struct singleLine *addLine(struct singleEntry *entry,
3274	const char * removeArgs,	struct configFileInfo *cfi,
3275	const char * addMBArgs, const char * removeMBArgs) {	enum lineType_e type, char *defaultIndent,
3276	int rc = 0;	const char *val)
3277		{
3278	if (!image) return rc;	struct singleLine *line, *prev;
3279		struct keywordTypes *kw;
3280	/* update the main args first... */	struct singleLine tmpl;
3281	if (addArgs || removeArgs)
3282	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* NB: This function shouldn't allocate items on the heap, rather on
3283	if (rc) return rc;	* the stack since it calls addLineTmpl which will make copies.
3284		*/
3285	/* and now any multiboot args */	if (type == LT_TITLE && cfi->titleBracketed) {
3286	if (addMBArgs || removeMBArgs)	/* we're doing a bracketed title (zipl) */
3287	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	tmpl.type = type;
3288	return rc;	tmpl.numElements = 1;
3289	}	tmpl.elements = alloca(sizeof(*tmpl.elements));
3290		tmpl.elements[0].item = alloca(strlen(val) + 3);
3291	int addMBInitrd(struct grubConfig * cfg, const char *newMBKernel,	sprintf(tmpl.elements[0].item, "[%s]", val);
3292	const char * image, const char * prefix, const char * initrd) {	tmpl.elements[0].indent = "";
3293	struct singleEntry * entry;	val = NULL;
3294	struct singleLine * line, * kernelLine, *endLine = NULL;	} else if (type == LT_MENUENTRY) {
3295	int index = 0;	char *lineend = "--class gnu-linux --class gnu --class os {";
3296		if (!val) {
3297	if (!image) return 0;	fprintf(stderr,
3298		"Line type LT_MENUENTRY requires a value\n");
3299	for (; (entry = findEntryByPath(cfg, newMBKernel, prefix, &index)); index++) {	abort();
3300	kernelLine = getLineByType(LT_MBMODULE, entry->lines);	}
3301	if (!kernelLine) continue;	kw = getKeywordByType(type, cfi);
3302		if (!kw) {
3303	if (prefix) {	fprintf(stderr,
3304	int prefixLen = strlen(prefix);	"Looking up keyword for unknown type %d\n",
3305	if (!strncmp(initrd, prefix, prefixLen))	type);
3306	initrd += prefixLen;	abort();
3307	}	}
3308	endLine = getLineByType(LT_ENTRY_END, entry->lines);	tmpl.indent = "";
3309	if (endLine)	tmpl.type = type;
3310	removeLine(entry, endLine);	tmpl.numElements = 3;
3311	line = addLine(entry, cfg->cfi, preferredLineType(LT_MBMODULE,cfg->cfi),	tmpl.elements =
3312	kernelLine->indent, initrd);	alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3313	if (!line)	tmpl.elements[0].item = kw->key;
3314	return 1;	tmpl.elements[0].indent = alloca(2);
3315	if (endLine) {	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3316	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);	tmpl.elements[1].item = (char *)val;
3317	if (!line)	tmpl.elements[1].indent = alloca(2);
3318	return 1;	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3319		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3320		strcpy(tmpl.elements[2].item, lineend);
3321		tmpl.elements[2].indent = "";
3322		} else {
3323		kw = getKeywordByType(type, cfi);
3324		if (!kw) {
3325		fprintf(stderr,
3326		"Looking up keyword for unknown type %d\n",
3327		type);
3328		abort();
3329		}
3330		tmpl.type = type;
3331		tmpl.numElements = val ? 2 : 1;
3332		tmpl.elements =
3333		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3334		tmpl.elements[0].item = kw->key;
3335		tmpl.elements[0].indent = alloca(2);
3336		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3337		if (val) {
3338		tmpl.elements[1].item = (char *)val;
3339		tmpl.elements[1].indent = "";
3340		}
3341	}	}
3342
3343	break;	/* The last non-empty line gives us the indention to us and the line
3344	}	* to insert after. Note that comments are considered empty lines,
3345		* which may not be ideal? If there are no lines or we are looking at
3346		* the first line, we use defaultIndent (the first line is normally
3347		* indented differently from the rest) */
3348		for (line = entry->lines, prev = NULL; line; line = line->next) {
3349		if (line->numElements)
3350		prev = line;
3351		/* fall back on the last line if prev isn't otherwise set */
3352		if (!line->next && !prev)
3353		prev = line;
3354		}
3355
3356		struct singleLine *menuEntry;
3357		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3358		if (tmpl.type == LT_ENTRY_END) {
3359		if (menuEntry)
3360		tmpl.indent = menuEntry->indent;
3361		else
3362		tmpl.indent = defaultIndent ? : "";
3363		} else if (tmpl.type != LT_MENUENTRY) {
3364		if (menuEntry)
3365		tmpl.indent = "\t";
3366		else if (prev == entry->lines)
3367		tmpl.indent = defaultIndent ? : "";
3368		else
3369		tmpl.indent = prev->indent;
3370		}
3371
3372	return 0;	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3373	}	}
3374
3375	int updateInitrd(struct grubConfig * cfg, const char * image,	void removeLine(struct singleEntry *entry, struct singleLine *line)
3376	const char * prefix, const char * initrd) {	{
3377	struct singleEntry * entry;	struct singleLine *prev;
3378	struct singleLine * line, * kernelLine, *endLine = NULL;	int i;
3379	int index = 0;
3380		for (i = 0; i < line->numElements; i++) {
3381	if (!image) return 0;	free(line->elements[i].item);
3382		free(line->elements[i].indent);
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, 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);
	enum lineType_e lt;
	switch(kernelLine->type) {
	case LT_KERNEL:
	lt = LT_INITRD;
	break;
	case LT_KERNEL_EFI:
	lt = LT_INITRD_EFI;
	break;
	case LT_KERNEL_16:
	lt = LT_INITRD_16;
	break;
	default:
	lt = preferredLineType(LT_INITRD, cfg->cfi);
3383	}	}
3384	line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);	free(line->elements);
3385	if (!line)	free(line->indent);
3386	return 1;
3387	if (endLine) {	if (line == entry->lines) {
3388	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);	entry->lines = line->next;
3389	if (!line)	} else {
3390	return 1;	prev = entry->lines;
3391		while (prev->next != line)
3392		prev = prev->next;
3393		prev->next = line->next;
3394	}	}
3395
3396	break;	free(line);
3397	}	}
3398
3399	return 0;	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3400		{
3401		struct singleLine newLine = {
3402		.indent = tmplLine->indent,
3403		.type = tmplLine->type,
3404		.next = tmplLine->next,
3405		};
3406		int firstQuotedItem = -1;
3407		int quoteLen = 0;
3408		int j;
3409		int element = 0;
3410		char *c;
3411
3412		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3413		strcpy(c, tmplLine->elements[0].item);
3414		insertElement(&newLine, c, element++, cfi);
3415		free(c);
3416		c = NULL;
3417
3418		for (j = 1; j < tmplLine->numElements; j++) {
3419		if (firstQuotedItem == -1) {
3420		quoteLen += strlen(tmplLine->elements[j].item);
3421
3422		if (isquote(tmplLine->elements[j].item[0])) {
3423		firstQuotedItem = j;
3424		quoteLen +=
3425		strlen(tmplLine->elements[j].indent);
3426		} else {
3427		c = malloc(quoteLen + 1);
3428		strcpy(c, tmplLine->elements[j].item);
3429		insertElement(&newLine, c, element++, cfi);
3430		free(c);
3431		quoteLen = 0;
3432		}
3433		} else {
3434		int itemlen = strlen(tmplLine->elements[j].item);
3435		quoteLen += itemlen;
3436		quoteLen += strlen(tmplLine->elements[j].indent);
3437
3438		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3439		c = malloc(quoteLen + 1);
3440		c[0] = '\0';
3441		for (int i = firstQuotedItem; i < j + 1; i++) {
3442		strcat(c, tmplLine->elements[i].item);
3443		strcat(c, tmplLine->elements[i].indent);
3444		}
3445		insertElement(&newLine, c, element++, cfi);
3446		free(c);
3447
3448		firstQuotedItem = -1;
3449		quoteLen = 0;
3450		}
3451		}
3452		}
3453		while (tmplLine->numElements)
3454		removeElement(tmplLine, 0);
3455		if (tmplLine->elements)
3456		free(tmplLine->elements);
3457
3458		tmplLine->numElements = newLine.numElements;
3459		tmplLine->elements = newLine.elements;
3460	}	}
3461
3462	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	static void insertElement(struct singleLine *line,
3463	int fd;	const char *item, int insertHere,
3464	unsigned char bootSect[512];	struct configFileInfo *cfi)
3465	int offset;	{
3466		struct keywordTypes *kw;
3467	fd = open(device, O_RDONLY);	char indent[2] = "";
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3468
3469	if (read(fd, bootSect, 512) != 512) {	/* sanity check */
3470	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (insertHere > line->numElements) {
3471	device, strerror(errno));	dbgPrintf
3472	return 1;	("insertElement() adjusting insertHere from %d to %d\n",
3473	}	insertHere, line->numElements);
3474	close(fd);	insertHere = line->numElements;
3475		}
3476
3477		line->elements = realloc(line->elements, (line->numElements + 1) *
3478		sizeof(*line->elements));
3479		memmove(&line->elements[insertHere + 1],
3480		&line->elements[insertHere],
3481		(line->numElements - insertHere) * sizeof(*line->elements));
3482		line->elements[insertHere].item = strdup(item);
3483
3484		kw = getKeywordByType(line->type, cfi);
3485
3486		if (line->numElements == 0) {
3487		indent[0] = '\0';
3488		} else if (insertHere == 0) {
3489		indent[0] = kw->nextChar;
3490		} else if (kw->separatorChar != '\0') {
3491		indent[0] = kw->separatorChar;
3492		} else {
3493		indent[0] = ' ';
3494		}
3495
3496	/* first three bytes should match, a jmp short should be in there */	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3497	if (memcmp(boot, bootSect, 3))	/* move the end-of-line forward */
3498	return 0;	line->elements[insertHere].indent =
3499		line->elements[insertHere - 1].indent;
3500		line->elements[insertHere - 1].indent = strdup(indent);
3501		} else {
3502		line->elements[insertHere].indent = strdup(indent);
3503		}
3504
3505	if (boot[1] == JMP_SHORT_OPCODE) {	line->numElements++;
	offset = boot[2] + 2;
	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
	offset = (boot[3] << 8) + boot[2] + 2;
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	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;
	}
3506
3507	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3508	return 0;	line->elements[0].item,
3509		line->elements[insertHere].item,
3510		line->elements[insertHere].indent, insertHere);
3511		}
3512
3513		static void removeElement(struct singleLine *line, int removeHere)
3514		{
3515		int i;
3516
3517		/* sanity check */
3518		if (removeHere >= line->numElements)
3519		return;
3520
3521		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3522		removeHere, line->elements[removeHere].item);
3523
3524		free(line->elements[removeHere].item);
3525
3526		if (removeHere > 1) {
3527		/* previous argument gets this argument's post-indentation */
3528		free(line->elements[removeHere - 1].indent);
3529		line->elements[removeHere - 1].indent =
3530		line->elements[removeHere].indent;
3531		} else {
3532		free(line->elements[removeHere].indent);
3533		}
3534
3535		/* now collapse the array, but don't bother to realloc smaller */
3536		for (i = removeHere; i < line->numElements - 1; i++)
3537		line->elements[i] = line->elements[i + 1];
3538
3539	return 2;	line->numElements--;
3540	}	}
3541
3542	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int argMatch(const char *one, const char *two)
3543	int fd;	{
3544	char buf[65536];	char *first, *second;
3545	char * end;	char *chptr;
	char * chptr;
	char * chptr2;
	int rc;
3546
3547	/* it's on raid; we need to parse /proc/mdstat and check all of the	first = strcpy(alloca(strlen(one) + 1), one);
3548	*raw* devices listed in there */	second = strcpy(alloca(strlen(two) + 1), two);
3549
3550	if (!strncmp(mdDev, "/dev/", 5))	chptr = strchr(first, '=');
3551	mdDev += 5;	if (chptr)
3552		*chptr = '\0';
3553
3554	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	chptr = strchr(second, '=');
3555	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	if (chptr)
3556	strerror(errno));	*chptr = '\0';
	return 2;
	}
3557
3558	rc = read(fd, buf, sizeof(buf) - 1);	return strcmp(first, second);
3559	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';
3560
3561	chptr = buf;	int updateActualImage(struct grubConfig *cfg, const char *image,
3562	while (*chptr) {	const char *prefix, const char *addArgs,
3563	end = strchr(chptr, '\n');	const char *removeArgs, int multibootArgs)
3564	if (!end) break;	{
3565	*end = '\0';	struct singleEntry *entry;
3566		struct singleLine *line, *rootLine;
3567		int index = 0;
3568		int i, k;
3569		const char **newArgs, **oldArgs;
3570		const char **arg;
3571		int useKernelArgs, useRoot;
3572		int firstElement;
3573		int *usedElements;
3574		int doreplace;
3575
3576	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	if (!image)
3577	chptr[strlen(mdDev)] == ' ') {	return 0;
3578
3579	/* found the device */	if (!addArgs) {
3580	while (*chptr && *chptr != ':') chptr++;	newArgs = malloc(sizeof(*newArgs));
3581	chptr++;	*newArgs = NULL;
3582	while (*chptr && isspace(*chptr)) chptr++;	} else {
3583		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3584	/* skip the "active" bit */	fprintf(stderr,
3585	while (*chptr && !isspace(*chptr)) chptr++;	_("grubby: error separating arguments '%s'\n"),
3586	while (*chptr && isspace(*chptr)) chptr++;	addArgs);
3587		return 1;
3588	/* skip the raid level */	}
3589	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++;
	}
3590
3591	/*  we're good to go */	if (!removeArgs) {
3592	return 2;	oldArgs = malloc(sizeof(*oldArgs));
3593		*oldArgs = NULL;
3594		} else {
3595		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3596		fprintf(stderr,
3597		_("grubby: error separating arguments '%s'\n"),
3598		removeArgs);
3599		free(newArgs);
3600		return 1;
3601		}
3602	}	}
3603
3604	chptr = end + 1;	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3605	}	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3606
3607	fprintf(stderr,	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3608	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	&& !multibootArgs);
	mdDev);
	return 0;
	}
3609
3610	int checkForLilo(struct grubConfig * config) {	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	int fd;
	unsigned char boot[512];
	struct singleLine * line;
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3611
3612	if (line->numElements != 2) return 1;	if (multibootArgs && !entry->multiboot)
3613		continue;
3614
3615	fd = open("/boot/boot.b", O_RDONLY);	/* Determine where to put the args.  If this config supports
3616	if (fd < 0) {	* LT_KERNELARGS, use that.  Otherwise use
3617	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3618	"/boot/boot.b", strerror(errno));	*/
3619	return 1;	if (useKernelArgs) {
3620	}	line = getLineByType(LT_KERNELARGS, entry->lines);
3621		if (!line) {
3622		/* no LT_KERNELARGS, need to add it */
3623		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3624		cfg->secondaryIndent, NULL);
3625		}
3626		firstElement = 1;
3627
3628	if (read(fd, boot, 512) != 512) {	} else if (multibootArgs) {
3629	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	line = getLineByType(LT_HYPER, entry->lines);
3630	"/boot/boot.b", strerror(errno));	if (!line) {
3631	return 1;	/* a multiboot entry without LT_HYPER? */
3632	}	continue;
3633	close(fd);	}
3634		firstElement = 2;
3635
3636	if (!strncmp("/dev/md", line->elements[1].item, 7))	} else {
3637	return checkLiloOnRaid(line->elements[1].item, boot);	line =
3638		getLineByType(LT_KERNEL | LT_MBMODULE |
3639		LT_KERNEL_EFI | LT_KERNEL_16,
3640		entry->lines);
3641		if (!line) {
3642		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3643		continue;
3644		}
3645		firstElement = 2;
3646		}
3647
3648	return checkDeviceBootloader(line->elements[1].item, boot);	/* handle the elilo case which does:
3649	}	*   append="hypervisor args -- kernel args"
3650		*/
3651		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3652		/* this is a multiboot entry, make sure there's
3653		* -- on the args line
3654		*/
3655		for (i = firstElement; i < line->numElements; i++) {
3656		if (!strcmp(line->elements[i].item, "--"))
3657		break;
3658		}
3659		if (i == line->numElements) {
3660		/* assume all existing args are kernel args,
3661		* prepend -- to make it official
3662		*/
3663		insertElement(line, "--", firstElement,
3664		cfg->cfi);
3665		i = firstElement;
3666		}
3667		if (!multibootArgs) {
3668		/* kernel args start after the -- */
3669		firstElement = i + 1;
3670		}
3671		} else if (cfg->cfi->mbConcatArgs) {
3672		/* this is a non-multiboot entry, remove hyper args */
3673		for (i = firstElement; i < line->numElements; i++) {
3674		if (!strcmp(line->elements[i].item, "--"))
3675		break;
3676		}
3677		if (i < line->numElements) {
3678		/* remove args up to -- */
3679		while (strcmp
3680		(line->elements[firstElement].item,
3681		"--"))
3682		removeElement(line, firstElement);
3683		/* remove -- */
3684		removeElement(line, firstElement);
3685		}
3686		}
3687
3688	int checkForGrub2(struct grubConfig * config) {	usedElements = calloc(line->numElements, sizeof(*usedElements));
3689	if (!access("/etc/grub.d/", R_OK))
3690	return 2;	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3691
3692		doreplace = 1;
3693		for (i = firstElement; i < line->numElements; i++) {
3694		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3695		!strcmp(line->elements[i].item, "--")) {
3696		/* reached the end of hyper args, insert here */
3697		doreplace = 0;
3698		break;
3699		}
3700		if (usedElements[i])
3701		continue;
3702		if (!argMatch(line->elements[i].item, *arg)) {
3703		usedElements[i] = 1;
3704		break;
3705		}
3706		}
3707
3708		if (i < line->numElements && doreplace) {
3709		/* direct replacement */
3710		free(line->elements[i].item);
3711		line->elements[i].item = strdup(*arg);
3712
3713		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3714		/* root= replacement */
3715		rootLine = getLineByType(LT_ROOT, entry->lines);
3716		if (rootLine) {
3717		free(rootLine->elements[1].item);
3718		rootLine->elements[1].item =
3719		strdup(*arg + 5);
3720		} else {
3721		rootLine =
3722		addLine(entry, cfg->cfi, LT_ROOT,
3723		cfg->secondaryIndent,
3724		*arg + 5);
3725		}
3726		}
3727
3728		else {
3729		/* insert/append */
3730		insertElement(line, *arg, i, cfg->cfi);
3731		usedElements =
3732		realloc(usedElements,
3733		line->numElements *
3734		sizeof(*usedElements));
3735		memmove(&usedElements[i + 1], &usedElements[i],
3736		line->numElements - i - 1);
3737		usedElements[i] = 1;
3738
3739		/* if we updated a root= here even though
3740		* there is a LT_ROOT available we need to
3741		* remove the LT_ROOT entry (this will happen
3742		* if we switch from a device to a label) */
3743		if (useRoot && !strncmp(*arg, "root=", 5)) {
3744		rootLine =
3745		getLineByType(LT_ROOT,
3746		entry->lines);
3747		if (rootLine)
3748		removeLine(entry, rootLine);
3749		}
3750		}
3751		}
3752
3753	return 1;	free(usedElements);
3754
3755		for (arg = oldArgs; *arg; arg++) {
3756		for (i = firstElement; i < line->numElements; i++) {
3757		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3758		!strcmp(line->elements[i].item, "--"))
3759		/* reached the end of hyper args, stop here */
3760		break;
3761		if (!argMatch(line->elements[i].item, *arg)) {
3762		removeElement(line, i);
3763		break;
3764		}
3765		}
3766		/* handle removing LT_ROOT line too */
3767		if (useRoot && !strncmp(*arg, "root=", 5)) {
3768		rootLine = getLineByType(LT_ROOT, entry->lines);
3769		if (rootLine)
3770		removeLine(entry, rootLine);
3771		}
3772		}
3773
3774		if (line->numElements == 1) {
3775		/* don't need the line at all (note it has to be a
3776		LT_KERNELARGS for this to happen */
3777		removeLine(entry, line);
3778		}
3779		}
3780
3781		free(newArgs);
3782		free(oldArgs);
3783
3784		return 0;
3785	}	}
3786
3787	int checkForGrub(struct grubConfig * config) {	int updateImage(struct grubConfig *cfg, const char *image,
3788	int fd;	const char *prefix, const char *addArgs,
3789	unsigned char bootSect[512];	const char *removeArgs,
3790	char * boot;	const char *addMBArgs, const char *removeMBArgs)
3791	int onSuse = isSuseSystem();	{
3792		int rc = 0;
3793
3794		if (!image)
3795		return rc;
3796
3797	if (onSuse) {	/* update the main args first... */
3798	if (parseSuseGrubConf(NULL, &boot))	if (addArgs || removeArgs)
3799	return 0;	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3800	} else {	0);
3801	if (parseSysconfigGrub(NULL, &boot))	if (rc)
3802	return 0;	return rc;
3803	}
3804		/* and now any multiboot args */
3805		if (addMBArgs || removeMBArgs)
3806		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3807		removeMBArgs, 1);
3808		return rc;
3809		}
3810
3811		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3812		const char *image, const char *prefix, const char *initrd,
3813		const char *title)
3814		{
3815		struct singleEntry *entry;
3816		struct singleLine *line, *kernelLine, *endLine = NULL;
3817		int index = 0;
3818
3819		if (!image)
3820		return 0;
3821
3822		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3823		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3824		if (!kernelLine)
3825		continue;
3826
3827		/* if title is supplied, the entry's title must match it. */
3828		if (title) {
3829		char *linetitle;
3830
3831		line =
3832		getLineByType(LT_TITLE | LT_MENUENTRY,
3833		entry->lines);
3834		if (!line)
3835		continue;
3836
3837		linetitle = extractTitle(cfg, line);
3838		if (!linetitle)
3839		continue;
3840		if (strcmp(title, linetitle)) {
3841		free(linetitle);
3842		continue;
3843		}
3844		free(linetitle);
3845		}
3846
3847		if (prefix) {
3848		int prefixLen = strlen(prefix);
3849		if (!strncmp(initrd, prefix, prefixLen))
3850		initrd += prefixLen;
3851		}
3852		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3853		if (endLine)
3854		removeLine(entry, endLine);
3855		line =
3856		addLine(entry, cfg->cfi,
3857		preferredLineType(LT_MBMODULE, cfg->cfi),
3858		kernelLine->indent, initrd);
3859		if (!line)
3860		return 1;
3861		if (endLine) {
3862		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3863		if (!line)
3864		return 1;
3865		}
3866
3867		break;
3868		}
3869
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3870	return 0;	return 0;
3871		}
3872
3873		int updateInitrd(struct grubConfig *cfg, const char *image,
3874		const char *prefix, const char *initrd, const char *title)
3875		{
3876		struct singleEntry *entry;
3877		struct singleLine *line, *kernelLine, *endLine = NULL;
3878		int index = 0;
3879
3880		if (!image)
3881		return 0;
3882
3883		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3884		kernelLine =
3885		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3886		entry->lines);
3887		if (!kernelLine)
3888		continue;
3889
3890		/* if title is supplied, the entry's title must match it. */
3891		if (title) {
3892		char *linetitle;
3893
3894		line =
3895		getLineByType(LT_TITLE | LT_MENUENTRY,
3896		entry->lines);
3897		if (!line)
3898		continue;
3899
3900		linetitle = extractTitle(cfg, line);
3901		if (!linetitle)
3902		continue;
3903		if (strcmp(title, linetitle)) {
3904		free(linetitle);
3905		continue;
3906		}
3907		free(linetitle);
3908		}
3909
3910		line =
3911		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3912		entry->lines);
3913		if (line)
3914		removeLine(entry, line);
3915		if (prefix) {
3916		int prefixLen = strlen(prefix);
3917		if (!strncmp(initrd, prefix, prefixLen))
3918		initrd += prefixLen;
3919		}
3920		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3921		if (endLine)
3922		removeLine(entry, endLine);
3923		enum lineType_e lt;
3924		switch (kernelLine->type) {
3925		case LT_KERNEL:
3926		lt = LT_INITRD;
3927		break;
3928		case LT_KERNEL_EFI:
3929		lt = LT_INITRD_EFI;
3930		break;
3931		case LT_KERNEL_16:
3932		lt = LT_INITRD_16;
3933		break;
3934		default:
3935		lt = preferredLineType(LT_INITRD, cfg->cfi);
3936		}
3937		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3938		if (!line)
3939		return 1;
3940		if (endLine) {
3941		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3942		if (!line)
3943		return 1;
3944		}
3945
3946		break;
3947		}
3948
	fd = open("/boot/grub/stage1", O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3949	return 0;	return 0;
3950		}
3951
3952	if (read(fd, bootSect, 512) != 512) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3953	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3954	"/boot/grub/stage1", strerror(errno));	int fd;
3955	close(fd);	unsigned char bootSect[512];
3956	return 1;	int offset;
3957	}
3958	close(fd);	fd = open(device, O_RDONLY);
3959		if (fd < 0) {
3960		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3961		device, strerror(errno));
3962		return 1;
3963		}
3964
3965	/* The more elaborate checks do not work on SuSE. The checks done	if (read(fd, bootSect, 512) != 512) {
3966	* seem to be reasonble (at least for now), so just return success	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3967	*/	device, strerror(errno));
3968	if (onSuse)	return 1;
3969	return 2;	}
3970		close(fd);
3971
3972		/* first three bytes should match, a jmp short should be in there */
3973		if (memcmp(boot, bootSect, 3))
3974		return 0;
3975
3976		if (boot[1] == JMP_SHORT_OPCODE) {
3977		offset = boot[2] + 2;
3978		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3979		offset = (boot[3] << 8) + boot[2] + 2;
3980		} else if (boot[0] == JMP_SHORT_OPCODE) {
3981		offset = boot[1] + 2;
3982		/*
3983		* it looks like grub, when copying stage1 into the mbr,
3984		* patches stage1 right after the JMP location, replacing
3985		* other instructions such as JMPs for NOOPs. So, relax the
3986		* check a little bit by skipping those different bytes.
3987		*/
3988		if ((bootSect[offset + 1] == NOOP_OPCODE)
3989		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3990		offset = offset + 3;
3991		}
3992		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3993		offset = (boot[2] << 8) + boot[1] + 2;
3994		} else {
3995		return 0;
3996		}
3997
3998	return checkDeviceBootloader(boot, bootSect);	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3999		return 0;
4000
4001		return 2;
4002	}	}
4003
4004	int checkForExtLinux(struct grubConfig * config) {	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4005	int fd;	{
4006	unsigned char bootSect[512];	int fd;
4007	char * boot;	char buf[65536];
4008	char executable[] = "/boot/extlinux/extlinux";	char *end;
4009		char *chptr;
4010		char *chptr2;
4011		int rc;
4012
4013		/* it's on raid; we need to parse /proc/mdstat and check all of the
4014		*raw* devices listed in there */
4015
4016		if (!strncmp(mdDev, "/dev/", 5))
4017		mdDev += 5;
4018
4019		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4020		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4021		strerror(errno));
4022		return 2;
4023		}
4024
4025		rc = read(fd, buf, sizeof(buf) - 1);
4026		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4027		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4028		strerror(errno));
4029		close(fd);
4030		return 2;
4031		}
4032		close(fd);
4033		buf[rc] = '\0';
4034
4035	printf("entered: checkForExtLinux()\n");	chptr = buf;
4036		while (*chptr) {
4037		end = strchr(chptr, '\n');
4038		if (!end)
4039		break;
4040		*end = '\0';
4041
4042	if (parseSysconfigGrub(NULL, &boot))	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4043	return 0;	chptr[strlen(mdDev)] == ' ') {
4044
4045	/* assume grub is not installed -- not an error condition */	/* found the device */
4046	if (!boot)	while (*chptr && *chptr != ':')
4047	return 0;	chptr++;
4048		chptr++;
4049		while (*chptr && isspace(*chptr))
4050		chptr++;
4051
4052		/* skip the "active" bit */
4053		while (*chptr && !isspace(*chptr))
4054		chptr++;
4055		while (*chptr && isspace(*chptr))
4056		chptr++;
4057
4058		/* skip the raid level */
4059		while (*chptr && !isspace(*chptr))
4060		chptr++;
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063
4064		/* everything else is partition stuff */
4065		while (*chptr) {
4066		chptr2 = chptr;
4067		while (*chptr2 && *chptr2 != '[')
4068		chptr2++;
4069		if (!*chptr2)
4070		break;
4071
4072		/* yank off the numbers at the end */
4073		chptr2--;
4074		while (isdigit(*chptr2) && chptr2 > chptr)
4075		chptr2--;
4076		chptr2++;
4077		*chptr2 = '\0';
4078
4079		/* Better, now we need the /dev/ back. We're
4080		* done with everything before this point, so
4081		* we can just put the /dev/ part there.
4082		* There will always be room. */
4083		memcpy(chptr - 5, "/dev/", 5);
4084		rc = checkDeviceBootloader(chptr - 5, boot);
4085		if (rc != 2) {
4086		return rc;
4087		}
4088
4089		chptr = chptr2 + 1;
4090		/* skip the [11] bit */
4091		while (*chptr && !isspace(*chptr))
4092		chptr++;
4093		/* and move to the next one */
4094		while (*chptr && isspace(*chptr))
4095		chptr++;
4096		}
4097
4098		/*  we're good to go */
4099		return 2;
4100		}
4101
4102	fd = open(executable, O_RDONLY);	chptr = end + 1;
4103	if (fd < 0)	}
4104	/* this doesn't exist if grub hasn't been installed */
4105		fprintf(stderr,
4106		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4107		mdDev);
4108	return 0;	return 0;
4109		}
4110
4111	if (read(fd, bootSect, 512) != 512) {	int checkForLilo(struct grubConfig *config)
4112	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
4113	executable, strerror(errno));	int fd;
4114	return 1;	unsigned char boot[512];
4115	}	struct singleLine *line;
4116	close(fd);
4117		for (line = config->theLines; line; line = line->next)
4118		if (line->type == LT_BOOT)
4119		break;
4120
4121	return checkDeviceBootloader(boot, bootSect);	if (!line) {
4122		fprintf(stderr,
4123		_
4124		("grubby: no boot line found in lilo configuration\n"));
4125		return 1;
4126		}
4127
4128		if (line->numElements != 2)
4129		return 1;
4130
4131		fd = open("/boot/boot.b", O_RDONLY);
4132		if (fd < 0) {
4133		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4134		"/boot/boot.b", strerror(errno));
4135		return 1;
4136		}
4137
4138		if (read(fd, boot, 512) != 512) {
4139		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4140		"/boot/boot.b", strerror(errno));
4141		return 1;
4142		}
4143		close(fd);
4144
4145		if (!strncmp("/dev/md", line->elements[1].item, 7))
4146		return checkLiloOnRaid(line->elements[1].item, boot);
4147
4148		return checkDeviceBootloader(line->elements[1].item, boot);
4149	}	}
4150
4151	int checkForYaboot(struct grubConfig * config) {	int checkForGrub2(struct grubConfig *config)
4152	/*	{
4153	* This is a simplistic check that we consider good enough for own puporses	if (!access("/etc/grub.d/", R_OK))
4154	*	return 2;
	* If we were to properly check if yaboot is *installed* we'd need to:
	* 1) get the system boot device (LT_BOOT)
	* 2) considering it's a raw filesystem, check if the yaboot binary matches
	*    the content on the boot device
	* 3) if not, copy the binary to a temporary file and run "addnote" on it
	* 4) check again if binary and boot device contents match
	*/
	if (!access("/etc/yaboot.conf", R_OK))
	return 2;
4155
4156	return 1;	return 1;
4157	}	}
4158
4159	int checkForElilo(struct grubConfig * config) {	int checkForGrub(struct grubConfig *config)
4160	if (!access("/etc/elilo.conf", R_OK))	{
4161	return 2;	int fd;
4162		unsigned char bootSect[512];
4163		char *boot;
4164		int onSuse = isSuseSystem();
4165
4166		if (onSuse) {
4167		if (parseSuseGrubConf(NULL, &boot))
4168		return 0;
4169		} else {
4170		if (parseSysconfigGrub(NULL, &boot))
4171		return 0;
4172		}
4173
4174		/* assume grub is not installed -- not an error condition */
4175		if (!boot)
4176		return 0;
4177
4178		fd = open("/boot/grub/stage1", O_RDONLY);
4179		if (fd < 0)
4180		/* this doesn't exist if grub hasn't been installed */
4181		return 0;
4182
4183		if (read(fd, bootSect, 512) != 512) {
4184		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4185		"/boot/grub/stage1", strerror(errno));
4186		close(fd);
4187		return 1;
4188		}
4189		close(fd);
4190
4191		/* The more elaborate checks do not work on SuSE. The checks done
4192		* seem to be reasonble (at least for now), so just return success
4193		*/
4194		if (onSuse)
4195		return 2;
4196
4197	return 1;	return checkDeviceBootloader(boot, bootSect);
4198	}	}
4199
4200	static char * getRootSpecifier(char * str) {	int checkForExtLinux(struct grubConfig *config)
4201	char * idx, * rootspec = NULL;	{
4202		int fd;
4203		unsigned char bootSect[512];
4204		char *boot;
4205		char executable[] = "/boot/extlinux/extlinux";
4206
4207	if (*str == '(') {	printf("entered: checkForExtLinux()\n");
4208	idx = rootspec = strdup(str);
4209	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (parseSysconfigGrub(NULL, &boot))
4210	*(++idx) = '\0';	return 0;
4211	}
4212	return rootspec;	/* assume grub is not installed -- not an error condition */
4213		if (!boot)
4214		return 0;
4215
4216		fd = open(executable, O_RDONLY);
4217		if (fd < 0)
4218		/* this doesn't exist if grub hasn't been installed */
4219		return 0;
4220
4221		if (read(fd, bootSect, 512) != 512) {
4222		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4223		executable, strerror(errno));
4224		return 1;
4225		}
4226		close(fd);
4227
4228		return checkDeviceBootloader(boot, bootSect);
4229	}	}
4230
4231	static char * getInitrdVal(struct grubConfig * config,	int checkForYaboot(struct grubConfig *config)
4232	const char * prefix, struct singleLine *tmplLine,	{
4233	const char * newKernelInitrd,	/*
4234	const char ** extraInitrds, int extraInitrdCount)	* This is a simplistic check that we consider good enough for own puporses
4235	{	*
4236	char *initrdVal, *end;	* If we were to properly check if yaboot is *installed* we'd need to:
4237	int i;	* 1) get the system boot device (LT_BOOT)
4238	size_t totalSize;	* 2) considering it's a raw filesystem, check if the yaboot binary matches
4239	size_t prefixLen;	*    the content on the boot device
4240	char separatorChar;	* 3) if not, copy the binary to a temporary file and run "addnote" on it
4241		* 4) check again if binary and boot device contents match
4242	prefixLen = strlen(prefix);	*/
4243	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	if (!access("/etc/yaboot.conf", R_OK))
4244		return 2;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4245
4246	initrdVal = end = malloc(totalSize);	return 1;
4247		}
4248
4249	end = stpcpy (end, newKernelInitrd + prefixLen);	int checkForElilo(struct grubConfig *config)
4250		{
4251		if (!access("/etc/elilo.conf", R_OK))
4252		return 2;
4253
4254	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	return 1;
4255	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
4256
4257	extraInitrd = extraInitrds[i] + prefixLen;	static char *getRootSpecifier(char *str)
4258	/* Don't add entries that are already there */	{
4259	if (tmplLine != NULL) {	char *idx, *rootspec = NULL;
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4260
4261	if (j != tmplLine->numElements)	if (*str == '(') {
4262	continue;	idx = rootspec = strdup(str);
4263		while (*idx && (*idx != ')') && (!isspace(*idx)))
4264		idx++;
4265		*(++idx) = '\0';
4266	}	}
4267		return rootspec;
4268		}
4269
4270	*end++ = separatorChar;	static char *getInitrdVal(struct grubConfig *config,
4271	end = stpcpy(end, extraInitrd);	const char *prefix, struct singleLine *tmplLine,
4272	}	const char *newKernelInitrd,
4273		const char **extraInitrds, int extraInitrdCount)
4274		{
4275		char *initrdVal, *end;
4276		int i;
4277		size_t totalSize;
4278		size_t prefixLen;
4279		char separatorChar;
4280
4281		prefixLen = strlen(prefix);
4282		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4283
4284		for (i = 0; i < extraInitrdCount; i++) {
4285		totalSize += sizeof(separatorChar);
4286		totalSize += strlen(extraInitrds[i]) - prefixLen;
4287		}
4288
4289		initrdVal = end = malloc(totalSize);
4290
4291		end = stpcpy(end, newKernelInitrd + prefixLen);
4292
4293		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4294		for (i = 0; i < extraInitrdCount; i++) {
4295		const char *extraInitrd;
4296		int j;
4297
4298		extraInitrd = extraInitrds[i] + prefixLen;
4299		/* Don't add entries that are already there */
4300		if (tmplLine != NULL) {
4301		for (j = 2; j < tmplLine->numElements; j++)
4302		if (strcmp
4303		(extraInitrd,
4304		tmplLine->elements[j].item) == 0)
4305		break;
4306
4307		if (j != tmplLine->numElements)
4308		continue;
4309		}
4310
4311	return initrdVal;	*end++ = separatorChar;
4312		end = stpcpy(end, extraInitrd);
4313		}
4314
4315		return initrdVal;
4316	}	}
4317
4318	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4319	const char * prefix,	const char *prefix,
4320	const char * newKernelPath, const char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4321	const char * newKernelArgs, const char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4322	const char ** extraInitrds, int extraInitrdCount,	const char **extraInitrds, int extraInitrdCount,
4323	const char * newMBKernel, const char * newMBKernelArgs,	const char *newMBKernel, const char *newMBKernelArgs,
4324	const char * newDevTreePath) {	const char *newDevTreePath, int newIndex)
4325	struct singleEntry * new;	{
4326	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4327	int needs;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4328	char * chptr;	int needs;
4329		char *indexs;
4330	if (!newKernelPath) return 0;	char *chptr;
4331		int rc;
4332	/* if the newKernelTitle is too long silently munge it into something
4333	* we can live with. truncating is first check, then we'll just mess with	if (!newKernelPath)
4334	* it until it looks better */	return 0;
4335	if (config->cfi->maxTitleLength &&
4336		rc = asprintf(&indexs, "%d", newIndex);
4337		if (rc < 0)
4338		return 1;
4339
4340		/* if the newKernelTitle is too long silently munge it into something
4341		* we can live with. truncating is first check, then we'll just mess with
4342		* it until it looks better */
4343		if (config->cfi->maxTitleLength &&
4344	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4345	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4346	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4347	int i = 1;	int i = 1;
4348
4349		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4350		newKernelTitle);
4351		while (findEntryByPath(config, buf, NULL, NULL)) {
4352		sprintf(numBuf, "%d", i++);
4353		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4354		}
4355
4356	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	newKernelTitle = buf + 6;
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4357	}	}
4358
4359	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4360	}	new->skip = 0;
4361		new->multiboot = 0;
4362		new->lines = NULL;
4363		entry = config->entries;
4364		for (unsigned int i = 0; i < newIndex; i++) {
4365		if (!entry)
4366		break;
4367		prev = entry;
4368		entry = entry->next;
4369		}
4370		new->next = entry;
4371
4372	new = malloc(sizeof(*new));	if (prev)
4373	new->skip = 0;	prev->next = new;
4374	new->multiboot = 0;	else
4375	new->next = config->entries;	config->entries = new;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
	needs |= NEED_DEVTREE;
4376
4377	if (template) {	/* copy/update from the template */
4378	for (masterLine = template->lines;	needs = NEED_KERNEL | NEED_TITLE;
4379	masterLine && (tmplLine = lineDup(masterLine));	if (newKernelInitrd)
4380	lineFree(tmplLine), masterLine = masterLine->next)	needs |= NEED_INITRD;
4381	{	if (newMBKernel) {
4382	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	needs |= NEED_MB;
4383		new->multiboot = 1;
4384	/* skip comments */	}
4385	chptr = tmplLine->indent;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4386	while (*chptr && isspace(*chptr)) chptr++;	needs |= NEED_DEVTREE;
4387	if (*chptr == '#') continue;
4388		if (template) {
4389	if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) {	for (masterLine = template->lines;
4390	if (!template->multiboot && (needs & NEED_MB)) {	masterLine && (tmplLine = lineDup(masterLine));
4391	/* it's not a multiboot template and this is the kernel	lineFree(tmplLine), masterLine = masterLine->next) {
4392	* line.  Try to be intelligent about inserting the	dbgPrintf("addNewKernel processing %d\n",
4393	* hypervisor at the same time.	tmplLine->type);
4394	*/
4395	if (config->cfi->mbHyperFirst) {	/* skip comments */
4396	/* insert the hypervisor first */	chptr = tmplLine->indent;
4397	newLine = addLine(new, config->cfi, LT_HYPER,	while (*chptr && isspace(*chptr))
4398	tmplLine->indent,	chptr++;
4399	newMBKernel + strlen(prefix));	if (*chptr == '#')
4400	/* set up for adding the kernel line */	continue;
4401	free(tmplLine->indent);
4402	tmplLine->indent = strdup(config->secondaryIndent);	if (iskernel(tmplLine->type)
4403	needs &= ~NEED_MB;	&& tmplLine->numElements >= 2) {
4404	}	if (!template->multiboot && (needs & NEED_MB)) {
4405	if (needs & NEED_KERNEL) {	/* it's not a multiboot template and
4406	/* use addLineTmpl to preserve line elements,	* this is the kernel line.  Try to
4407	* otherwise we could just call addLine.  Unfortunately	* be intelligent about inserting the
4408	* this means making some changes to the template	* hypervisor at the same time.
4409	* such as the indent change above and the type	*/
4410	* change below.	if (config->cfi->mbHyperFirst) {
4411	*/	/* insert the hypervisor first */
4412	struct keywordTypes * mbm_kw =	newLine =
4413	getKeywordByType(LT_MBMODULE, config->cfi);	addLine(new, config->cfi,
4414	if (mbm_kw) {	LT_HYPER,
4415	tmplLine->type = LT_MBMODULE;	tmplLine->indent,
4416	free(tmplLine->elements[0].item);	newMBKernel +
4417	tmplLine->elements[0].item = strdup(mbm_kw->key);	strlen(prefix));
4418	}	/* set up for adding the
4419	newLine = addLineTmpl(new, tmplLine, newLine,	* kernel line */
4420	newKernelPath + strlen(prefix), config->cfi);	free(tmplLine->indent);
4421	needs &= ~NEED_KERNEL;	tmplLine->indent =
4422	}	strdup(config->
4423	if (needs & NEED_MB) { /* !mbHyperFirst */	secondaryIndent);
4424	newLine = addLine(new, config->cfi, LT_HYPER,	needs &= ~NEED_MB;
4425	config->secondaryIndent,	}
4426	newMBKernel + strlen(prefix));	if (needs & NEED_KERNEL) {
4427	needs &= ~NEED_MB;	/* use addLineTmpl to
4428	}	* preserve line elements,
4429	} else if (needs & NEED_KERNEL) {	* otherwise we could just
4430	newLine = addLineTmpl(new, tmplLine, newLine,	* call addLine.
4431	newKernelPath + strlen(prefix), config->cfi);	* Unfortunately this means
4432	needs &= ~NEED_KERNEL;	* making some changes to the
4433	}	* template such as the
4434		* indent change above and
4435	} else if (tmplLine->type == LT_HYPER &&	* the type change below.
4436	tmplLine->numElements >= 2) {	*/
4437	if (needs & NEED_MB) {	struct keywordTypes *mbm_kw =
4438	newLine = addLineTmpl(new, tmplLine, newLine,	getKeywordByType
4439	newMBKernel + strlen(prefix), config->cfi);	(LT_MBMODULE, config->cfi);
4440	needs &= ~NEED_MB;	if (mbm_kw) {
4441	}	tmplLine->type =
4442		LT_MBMODULE;
4443	} else if (tmplLine->type == LT_MBMODULE &&	free(tmplLine->
4444	tmplLine->numElements >= 2) {	elements[0].item);
4445	if (new->multiboot) {	tmplLine->elements[0].
4446	if (needs & NEED_KERNEL) {	item =
4447	newLine = addLineTmpl(new, tmplLine, newLine,	strdup(mbm_kw->key);
4448	newKernelPath +	}
4449	strlen(prefix), config->cfi);	newLine =
4450	needs &= ~NEED_KERNEL;	addLineTmpl(new, tmplLine,
4451	} else if (config->cfi->mbInitRdIsModule &&	newLine,
4452	(needs & NEED_INITRD)) {	newKernelPath +
4453	char *initrdVal;	strlen(prefix),
4454	initrdVal = getInitrdVal(config, prefix, tmplLine,	config->cfi);
4455	newKernelInitrd, extraInitrds,	needs &= ~NEED_KERNEL;
4456	extraInitrdCount);	}
4457	newLine = addLineTmpl(new, tmplLine, newLine,	if (needs & NEED_MB) { /* !mbHyperFirst */
4458	initrdVal, config->cfi);	newLine =
4459	free(initrdVal);	addLine(new, config->cfi,
4460	needs &= ~NEED_INITRD;	LT_HYPER,
4461	}	config->
4462	} else if (needs & NEED_KERNEL) {	secondaryIndent,
4463	/* template is multi but new is not,	newMBKernel +
4464	* insert the kernel in the first module slot	strlen(prefix));
4465	*/	needs &= ~NEED_MB;
4466	tmplLine->type = preferredLineType(LT_KERNEL, config->cfi);	}
4467	free(tmplLine->elements[0].item);	} else if (needs & NEED_KERNEL) {
4468	tmplLine->elements[0].item =	newLine =
4469	strdup(getKeywordByType(tmplLine->type,	addLineTmpl(new, tmplLine, newLine,
4470	config->cfi)->key);	newKernelPath +
4471	newLine = addLineTmpl(new, tmplLine, newLine,	strlen(prefix),
4472	newKernelPath + strlen(prefix),	config->cfi);
4473	config->cfi);	needs &= ~NEED_KERNEL;
4474	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 if (tmplLine->type == LT_DEVTREE &&
	tmplLine->numElements == 2 && newDevTreePath) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newDevTreePath + strlen(prefix),
	config->cfi);
	needs &= ~NEED_DEVTREE;
	} else if (tmplLine->type == LT_ENTRY_END && needs & NEED_DEVTREE) {
	const char *ndtp = newDevTreePath;
	if (!strncmp(newDevTreePath, prefix, strlen(prefix)))
	ndtp += strlen(prefix);
	newLine = addLine(new, config->cfi, LT_DEVTREE,
	config->secondaryIndent,
	ndtp);
	needs &= ~NEED_DEVTREE;
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
	}
4475
4476	} else {	} else if (tmplLine->type == LT_HYPER &&
4477	/* don't have a template, so start the entry with the	tmplLine->numElements >= 2) {
4478	* appropriate starting line	if (needs & NEED_MB) {
4479	*/	newLine =
4480	switch (config->cfi->entryStart) {	addLineTmpl(new, tmplLine, newLine,
4481	case LT_KERNEL:	newMBKernel +
4482	case LT_KERNEL_EFI:	strlen(prefix),
4483	case LT_KERNEL_16:	config->cfi);
4484	if (new->multiboot && config->cfi->mbHyperFirst) {	needs &= ~NEED_MB;
4485	/* fall through to LT_HYPER */	}
4486	} else {
4487	newLine = addLine(new, config->cfi,	} else if (tmplLine->type == LT_MBMODULE &&
4488	preferredLineType(LT_KERNEL, config->cfi),	tmplLine->numElements >= 2) {
4489	config->primaryIndent,	if (new->multiboot) {
4490	newKernelPath + strlen(prefix));	if (needs & NEED_KERNEL) {
4491	needs &= ~NEED_KERNEL;	newLine =
4492	break;	addLineTmpl(new, tmplLine,
4493		newLine,
4494		newKernelPath +
4495		strlen(prefix),
4496		config->cfi);
4497		needs &= ~NEED_KERNEL;
4498		} else if (config->cfi->mbInitRdIsModule
4499		&& (needs & NEED_INITRD)) {
4500		char *initrdVal;
4501		initrdVal =
4502		getInitrdVal(config, prefix,
4503		tmplLine,
4504		newKernelInitrd,
4505		extraInitrds,
4506		extraInitrdCount);
4507		newLine =
4508		addLineTmpl(new, tmplLine,
4509		newLine,
4510		initrdVal,
4511		config->cfi);
4512		free(initrdVal);
4513		needs &= ~NEED_INITRD;
4514		}
4515		} else if (needs & NEED_KERNEL) {
4516		/* template is multi but new is not,
4517		* insert the kernel in the first
4518		* module slot
4519		*/
4520		tmplLine->type =
4521		preferredLineType(LT_KERNEL,
4522		config->cfi);
4523		free(tmplLine->elements[0].item);
4524		tmplLine->elements[0].item =
4525		strdup(getKeywordByType
4526		(tmplLine->type,
4527		config->cfi)->key);
4528		newLine =
4529		addLineTmpl(new, tmplLine, newLine,
4530		newKernelPath +
4531		strlen(prefix),
4532		config->cfi);
4533		needs &= ~NEED_KERNEL;
4534		} else if (needs & NEED_INITRD) {
4535		char *initrdVal;
4536		/* template is multi but new is not,
4537		* insert the initrd in the second
4538		* module slot
4539		*/
4540		tmplLine->type =
4541		preferredLineType(LT_INITRD,
4542		config->cfi);
4543		free(tmplLine->elements[0].item);
4544		tmplLine->elements[0].item =
4545		strdup(getKeywordByType
4546		(tmplLine->type,
4547		config->cfi)->key);
4548		initrdVal =
4549		getInitrdVal(config, prefix,
4550		tmplLine,
4551		newKernelInitrd,
4552		extraInitrds,
4553		extraInitrdCount);
4554		newLine =
4555		addLineTmpl(new, tmplLine, newLine,
4556		initrdVal, config->cfi);
4557		free(initrdVal);
4558		needs &= ~NEED_INITRD;
4559		}
4560
4561		} else if (isinitrd(tmplLine->type)
4562		&& tmplLine->numElements >= 2) {
4563		if (needs & NEED_INITRD && new->multiboot
4564		&& !template->multiboot
4565		&& config->cfi->mbInitRdIsModule) {
4566		/* make sure we don't insert the
4567		* module initrd before the module
4568		* kernel... if we don't do it here,
4569		* it will be inserted following the
4570		* template.
4571		*/
4572		if (!needs & NEED_KERNEL) {
4573		char *initrdVal;
4574
4575		initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLine(new, config->cfi,
4583		LT_MBMODULE,
4584		config->
4585		secondaryIndent,
4586		initrdVal);
4587		free(initrdVal);
4588		needs &= ~NEED_INITRD;
4589		}
4590		} else if (needs & NEED_INITRD) {
4591		char *initrdVal;
4592		initrdVal =
4593		getInitrdVal(config, prefix,
4594		tmplLine,
4595		newKernelInitrd,
4596		extraInitrds,
4597		extraInitrdCount);
4598		newLine =
4599		addLineTmpl(new, tmplLine, newLine,
4600		initrdVal, config->cfi);
4601		free(initrdVal);
4602		needs &= ~NEED_INITRD;
4603		}
4604
4605		} else if (tmplLine->type == LT_MENUENTRY &&
4606		(needs & NEED_TITLE)) {
4607		requote(tmplLine, config->cfi);
4608		char *nkt = malloc(strlen(newKernelTitle) + 3);
4609		strcpy(nkt, "'");
4610		strcat(nkt, newKernelTitle);
4611		strcat(nkt, "'");
4612		newLine =
4613		addLineTmpl(new, tmplLine, newLine, nkt,
4614		config->cfi);
4615		free(nkt);
4616		needs &= ~NEED_TITLE;
4617		} else if (tmplLine->type == LT_TITLE &&
4618		(needs & NEED_TITLE)) {
4619		if (tmplLine->numElements >= 2) {
4620		newLine =
4621		addLineTmpl(new, tmplLine, newLine,
4622		newKernelTitle,
4623		config->cfi);
4624		needs &= ~NEED_TITLE;
4625		} else if (tmplLine->numElements == 1 &&
4626		config->cfi->titleBracketed) {
4627		/* addLineTmpl doesn't handle
4628		* titleBracketed */
4629		newLine =
4630		addLine(new, config->cfi, LT_TITLE,
4631		tmplLine->indent,
4632		newKernelTitle);
4633		needs &= ~NEED_TITLE;
4634		}
4635		} else if (tmplLine->type == LT_ECHO) {
4636		requote(tmplLine, config->cfi);
4637		static const char *prefix = "'Loading ";
4638		if (tmplLine->numElements > 1 &&
4639		strstr(tmplLine->elements[1].item, prefix)
4640		&& masterLine->next
4641		&& iskernel(masterLine->next->type)) {
4642		char *newTitle =
4643		malloc(strlen(prefix) +
4644		strlen(newKernelTitle) + 2);
4645
4646		strcpy(newTitle, prefix);
4647		strcat(newTitle, newKernelTitle);
4648		strcat(newTitle, "'");
4649		newLine =
4650		addLine(new, config->cfi, LT_ECHO,
4651		tmplLine->indent, newTitle);
4652		free(newTitle);
4653		} else {
4654		/* pass through other lines from the
4655		* template */
4656		newLine =
4657		addLineTmpl(new, tmplLine, newLine,
4658		NULL, config->cfi);
4659		}
4660		} else if (tmplLine->type == LT_DEVTREE &&
4661		tmplLine->numElements == 2
4662		&& newDevTreePath) {
4663		newLine =
4664		addLineTmpl(new, tmplLine, newLine,
4665		newDevTreePath + strlen(prefix),
4666		config->cfi);
4667		needs &= ~NEED_DEVTREE;
4668		} else if (tmplLine->type == LT_ENTRY_END
4669		&& needs & NEED_DEVTREE) {
4670		const char *ndtp = newDevTreePath;
4671		if (!strncmp
4672		(newDevTreePath, prefix, strlen(prefix)))
4673		ndtp += strlen(prefix);
4674		newLine = addLine(new, config->cfi, LT_DEVTREE,
4675		config->secondaryIndent,
4676		ndtp);
4677		needs &= ~NEED_DEVTREE;
4678		newLine =
4679		addLineTmpl(new, tmplLine, newLine, NULL,
4680		config->cfi);
4681		} else {
4682		/* pass through other lines from the template */
4683		newLine =
4684		addLineTmpl(new, tmplLine, newLine, NULL,
4685		config->cfi);
4686		}
4687	}	}
4688
4689	case LT_HYPER:	} else {
4690	newLine = addLine(new, config->cfi, LT_HYPER,	/* don't have a template, so start the entry with the
4691	config->primaryIndent,	* appropriate starting line
4692	newMBKernel + strlen(prefix));	*/
4693	needs &= ~NEED_MB;	switch (config->cfi->entryStart) {
4694	break;	case LT_KERNEL:
4695		case LT_KERNEL_EFI:
4696		case LT_KERNEL_16:
4697		if (new->multiboot && config->cfi->mbHyperFirst) {
4698		/* fall through to LT_HYPER */
4699		} else {
4700		newLine = addLine(new, config->cfi,
4701		preferredLineType(LT_KERNEL,
4702		config->
4703		cfi),
4704		config->primaryIndent,
4705		newKernelPath +
4706		strlen(prefix));
4707		needs &= ~NEED_KERNEL;
4708		break;
4709		}
4710
4711	case LT_MENUENTRY: {	case LT_HYPER:
4712	char *nkt = malloc(strlen(newKernelTitle)+3);	newLine = addLine(new, config->cfi, LT_HYPER,
4713	strcpy(nkt, "'");	config->primaryIndent,
4714	strcat(nkt, newKernelTitle);	newMBKernel + strlen(prefix));
4715	strcat(nkt, "'");	needs &= ~NEED_MB;
4716	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
4717	config->primaryIndent, nkt);
4718	free(nkt);	case LT_MENUENTRY:{
4719	needs &= ~NEED_TITLE;	char *nkt = malloc(strlen(newKernelTitle) + 3);
4720	needs |= NEED_END;	strcpy(nkt, "'");
4721	break;	strcat(nkt, newKernelTitle);
4722	}	strcat(nkt, "'");
4723	case LT_TITLE:	newLine =
4724	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	addLine(new, config->cfi, LT_MENUENTRY,
4725	char * templabel;	config->primaryIndent, nkt);
4726	int x = 0, y = 0;	free(nkt);
4727		needs &= ~NEED_TITLE;
4728	templabel = strdup(newKernelTitle);	needs |= NEED_END;
4729	while( templabel[x]){	break;
4730	if( templabel[x] == ' ' ){	}
4731	y = x;	case LT_TITLE:
4732	while( templabel[y] ){	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4733	templabel[y] = templabel[y+1];	char *templabel;
4734	y++;	int x = 0, y = 0;
4735
4736		templabel = strdup(newKernelTitle);
4737		while (templabel[x]) {
4738		if (templabel[x] == ' ') {
4739		y = x;
4740		while (templabel[y]) {
4741		templabel[y] =
4742		templabel[y + 1];
4743		y++;
4744		}
4745	}	}
4746		x++;
4747	}	}
4748	x++;	newLine = addLine(new, config->cfi, LT_TITLE,
4749		config->primaryIndent,
4750		templabel);
4751		free(templabel);
4752		} else {
4753		newLine = addLine(new, config->cfi, LT_TITLE,
4754		config->primaryIndent,
4755		newKernelTitle);
4756	}	}
4757	newLine = addLine(new, config->cfi, LT_TITLE,	needs &= ~NEED_TITLE;
4758	config->primaryIndent, templabel);	break;
4759	free(templabel);
4760	}else{	default:
4761	newLine = addLine(new, config->cfi, LT_TITLE,	abort();
	config->primaryIndent, newKernelTitle);
4762	}	}
4763	needs &= ~NEED_TITLE;	}
	break;
4764
4765	default:	struct singleLine *endLine = NULL;
4766	abort();	endLine = getLineByType(LT_ENTRY_END, new->lines);
4767		if (endLine) {
4768		removeLine(new, endLine);
4769		needs |= NEED_END;
4770	}	}
	}
4771
4772	/* add the remainder of the lines, i.e. those that either	/* add the remainder of the lines, i.e. those that either
4773	* weren't present in the template, or in the case of no template,	* weren't present in the template, or in the case of no template,
4774	* all the lines following the entryStart.	* all the lines following the entryStart.
4775	*/	*/
4776	if (needs & NEED_TITLE) {	if (needs & NEED_TITLE) {
4777	newLine = addLine(new, config->cfi, LT_TITLE,	newLine = addLine(new, config->cfi, LT_TITLE,
4778	config->secondaryIndent,	config->secondaryIndent, newKernelTitle);
4779	newKernelTitle);	needs &= ~NEED_TITLE;
4780	needs &= ~NEED_TITLE;	}
4781	}	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4782	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {	newLine = addLine(new, config->cfi, LT_HYPER,
4783	newLine = addLine(new, config->cfi, LT_HYPER,	config->secondaryIndent,
4784	config->secondaryIndent,	newMBKernel + strlen(prefix));
4785	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4786	needs &= ~NEED_MB;	}
4787	}	if (needs & NEED_KERNEL) {
4788	if (needs & NEED_KERNEL) {	newLine = addLine(new, config->cfi,
4789	newLine = addLine(new, config->cfi,	(new->multiboot
4790	(new->multiboot && getKeywordByType(LT_MBMODULE,	&& getKeywordByType(LT_MBMODULE,
4791	config->cfi))	config->cfi))
4792	? LT_MBMODULE	? LT_MBMODULE : preferredLineType(LT_KERNEL,
4793	: preferredLineType(LT_KERNEL, config->cfi),	config->
4794	config->secondaryIndent,	cfi),
4795	newKernelPath + strlen(prefix));	config->secondaryIndent,
4796	needs &= ~NEED_KERNEL;	newKernelPath + strlen(prefix));
4797	}	needs &= ~NEED_KERNEL;
4798	if (needs & NEED_MB) {	}
4799	newLine = addLine(new, config->cfi, LT_HYPER,	if (needs & NEED_MB) {
4800	config->secondaryIndent,	newLine = addLine(new, config->cfi, LT_HYPER,
4801	newMBKernel + strlen(prefix));	config->secondaryIndent,
4802	needs &= ~NEED_MB;	newMBKernel + strlen(prefix));
4803	}	needs &= ~NEED_MB;
4804	if (needs & NEED_INITRD) {	}
4805	char *initrdVal;	if (needs & NEED_INITRD) {
4806	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);	char *initrdVal;
4807	newLine = addLine(new, config->cfi,	initrdVal =
4808	(new->multiboot && getKeywordByType(LT_MBMODULE,	getInitrdVal(config, prefix, NULL, newKernelInitrd,
4809	config->cfi))	extraInitrds, extraInitrdCount);
4810	? LT_MBMODULE	newLine =
4811	: preferredLineType(LT_INITRD, config->cfi),	addLine(new, config->cfi,
4812	config->secondaryIndent,	(new->multiboot
4813	initrdVal);	&& getKeywordByType(LT_MBMODULE, config->cfi))
4814	free(initrdVal);	? LT_MBMODULE : preferredLineType(LT_INITRD,
4815	needs &= ~NEED_INITRD;	config->cfi),
4816	}	config->secondaryIndent, initrdVal);
4817	if (needs & NEED_DEVTREE) {	free(initrdVal);
4818	newLine = addLine(new, config->cfi, LT_DEVTREE,	needs &= ~NEED_INITRD;
4819	config->secondaryIndent,	}
4820	newDevTreePath);	if (needs & NEED_DEVTREE) {
4821	needs &= ~NEED_DEVTREE;	newLine = addLine(new, config->cfi, LT_DEVTREE,
4822	}	config->secondaryIndent, newDevTreePath);
4823		needs &= ~NEED_DEVTREE;
4824		}
4825
4826	/* NEEDS_END must be last on bootloaders that need it... */	/* NEEDS_END must be last on bootloaders that need it... */
4827	if (needs & NEED_END) {	if (needs & NEED_END) {
4828	newLine = addLine(new, config->cfi, LT_ENTRY_END,	newLine = addLine(new, config->cfi, LT_ENTRY_END,
4829	config->secondaryIndent, NULL);	config->secondaryIndent, NULL);
4830	needs &= ~NEED_END;	needs &= ~NEED_END;
4831	}	}
	if (needs) {
	printf(_("grubby: needs=%d, aborting\n"), needs);
	abort();
	}
4832
4833	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (needs) {
4834	newMBKernelArgs, NULL)) return 1;	printf(_("grubby: needs=%d, aborting\n"), needs);
4835		abort();
4836		}
4837
4838	return 0;	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4839		newMBKernelArgs, NULL)) {
4840		config->isModified = 1;
4841		return 1;
4842		}
4843
4844		return 0;
4845	}	}
4846
4847	static void traceback(int signum)	int main(int argc, const char **argv)
4848	{	{
4849	void *array[40];	poptContext optCon;
4850	size_t size;	const char *grubConfig = NULL;
4851		char *outputFile = NULL;
4852	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4853	memset(array, '\0', sizeof (array));	int flags = 0;
4854	size = backtrace(array, 40);	int badImageOkay = 0;
4855		int configureGrub2 = 0;
4856	fprintf(stderr, "grubby received SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4857	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4858	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4859	exit(1);	int bootloaderProbe = 0;
4860	}	int extraInitrdCount = 0;
4861		char *updateKernelPath = NULL;
4862	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4863	poptContext optCon;	char *removeKernelPath = NULL;
4864	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4865	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4866	int arg = 0;	char *newKernelTitle = NULL;
4867	int flags = 0;	char *newDevTreePath = NULL;
4868	int badImageOkay = 0;	char *newMBKernel = NULL;
4869	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4870	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4871	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4872	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4873	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4874	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4875	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4876	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4877	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4878	char * newKernelArgs = NULL;	char *envPath = NULL;
4879	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4880	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4881	char * newDevTreePath = NULL;	struct grubConfig *config;
4882	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4883	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4884	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4885	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4886	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4887	char * defaultKernel = NULL;	int defaultIndex = -1;
4888	char * removeArgs = NULL;	struct poptOption options[] = {
4889	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4890	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4891	char * envPath = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4892	const char * chptr = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4893	struct configFileInfo * cfi = NULL;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4894	struct grubConfig * config;	_("default arguments for the new kernel or new arguments for "
4895	struct singleEntry * template = NULL;	"kernel being updated"), _("args")},
4896	int copyDefault = 0, makeDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4897	int displayDefault = 0;	_("default arguments for the new multiboot kernel or "
4898	int displayDefaultIndex = 0;	"new arguments for multiboot kernel being updated"), NULL},
4899	int displayDefaultTitle = 0;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4900	int defaultIndex = -1;	_
4901	struct poptOption options[] = {	("don't sanity check images in boot entries (for testing only)"),
4902	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	NULL},
4903	_("add an entry for the specified kernel"), _("kernel-path") },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4904	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	_
4905	_("add an entry for the specified multiboot kernel"), NULL },	("filesystem which contains /boot directory (for testing only)"),
4906	{ "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") },
4907	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4908	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4909	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4910	#endif	#endif
4911	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4912	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4913	_("path") },	_("path")},
4914	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4915	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4916	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4917	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4918	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4919	"template"), NULL },	"template"), NULL},
4920	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4921	_("print debugging information for failures") },	_("print debugging information for failures")},
4922	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4923	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4924	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4925	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4926	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4927	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4928	{ "devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4929	_("device tree file for new stanza"), _("dtb-path") },	_("device tree file for new stanza"), _("dtb-path")},
4930	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4931	_("configure elilo bootloader") },	_("device tree directory for new stanza"), _("dtb-path")},
4932	{ "efi", 0, POPT_ARG_NONE, &isEfi, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4933	_("force grub2 stanzas to use efi") },	_("configure elilo bootloader")},
4934	{ "env", 0, POPT_ARG_STRING, &envPath, 0,	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4935	_("path for environment data"),	_("force grub2 stanzas to use efi")},
4936	_("path") },	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4937	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	_("path for environment data"),
4938	_("configure extlinux bootloader (from syslinux)") },	_("path")},
4939	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4940	_("configure grub bootloader") },	_("configure extlinux bootloader (from syslinux)")},
4941	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4942	_("configure grub2 bootloader") },	_("configure grub bootloader")},
4943	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4944	_("display boot information for specified kernel"),	_("configure grub2 bootloader")},
4945	_("kernel-path") },	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4946	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("display boot information for specified kernel"),
4947	_("initrd image for the new kernel"), _("initrd-path") },	_("kernel-path")},
4948	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4949	_("auxiliary initrd image for things other than the new kernel"), _("initrd-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4950	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4951	_("configure lilo bootloader") },	_
4952	{ "make-default", 0, 0, &makeDefault, 0,	("auxiliary initrd image for things other than the new kernel"),
4953	_("make the newly added entry the default boot entry"), NULL },	_("initrd-path")},
4954	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4955	_("path to output updated config file (\"-\" for stdout)"),	_("configure lilo bootloader")},
4956	_("path") },	{"make-default", 0, 0, &makeDefault, 0,
4957	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("make the newly added entry the default boot entry"), NULL},
4958	_("remove kernel arguments"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4959	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("path to output updated config file (\"-\" for stdout)"),
4960	_("remove multiboot kernel arguments"), NULL },	_("path")},
4961	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4962	_("remove all entries for the specified kernel"),	_("remove kernel arguments"), NULL},
4963	_("kernel-path") },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4964	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("remove multiboot kernel arguments"), NULL},
4965	_("remove all entries for the specified multiboot kernel"), NULL },	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4966	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("remove all entries for the specified kernel"),
4967	_("make the first entry referencing the specified kernel "	_("kernel-path")},
4968	"the default"), _("kernel-path") },	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4969	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("remove all entries for the specified multiboot kernel"),
4970	_("make the given entry index the default entry"),	NULL},
4971	_("entry-index") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4972	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	_("make the first entry referencing the specified kernel "
4973	_("configure silo bootloader") },	"the default"), _("kernel-path")},
4974	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4975	_("title to use for the new kernel entry"), _("entry-title") },	_("make the given entry index the default entry"),
4976	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	_("entry-index")},
4977	_("updated information for the specified kernel"),	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4978	_("kernel-path") },	_("use the given index when creating a new entry"),
4979	{ "version", 'v', 0, NULL, 'v',	_("entry-index")},
4980	_("print the version of this program and exit"), NULL },	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4981	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("configure silo bootloader")},
4982	_("configure yaboot bootloader") },	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4983	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("title to use for the new kernel entry"), _("entry-title")},
4984	_("configure zipl bootloader") },	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4985	POPT_AUTOHELP	_("updated information for the specified kernel"),
4986	{ 0, 0, 0, 0, 0 }	_("kernel-path")},
4987	};	{"version", 'v', 0, NULL, 'v',
4988		_("print the version of this program and exit"), NULL},
4989	useextlinuxmenu=0;	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4990		_("configure yaboot bootloader")},
4991	signal(SIGSEGV, traceback);	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4992		_("configure zipl bootloader")},
4993	int i = 0;	POPT_AUTOHELP {0, 0, 0, 0, 0}
4994	for (int j = 1; j < argc; j++)	};
4995	i += strlen(argv[j]) + 1;
4996	saved_command_line = malloc(i);	useextlinuxmenu = 0;
4997	if (!saved_command_line) {
4998	fprintf(stderr, "grubby: %m\n");	int i = 0;
4999	exit(1);	for (int j = 1; j < argc; j++)
5000	}	i += strlen(argv[j]) + 1;
5001	saved_command_line[0] = '\0';	saved_command_line = malloc(i);
5002	for (int j = 1; j < argc; j++) {	if (!saved_command_line) {
5003	strcat(saved_command_line, argv[j]);	fprintf(stderr, "grubby: %m\n");
5004	strncat(saved_command_line, j == argc -1 ? "" : " ", 1);	exit(1);
5005	}	}
5006		saved_command_line[0] = '\0';
5007	optCon = poptGetContext("grubby", argc, argv, options, 0);	for (int j = 1; j < argc; j++) {
5008	poptReadDefaultConfig(optCon, 1);	strcat(saved_command_line, argv[j]);
5009		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5010		}
5011
5012		optCon = poptGetContext("grubby", argc, argv, options, 0);
5013		poptReadDefaultConfig(optCon, 1);
5014
5015		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5016		switch (arg) {
5017		case 'v':
5018		printf("grubby version %s\n", VERSION);
5019		exit(0);
5020		break;
5021		case 'i':
5022		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5023		extraInitrds[extraInitrdCount++] =
5024		strdup(poptGetOptArg(optCon));
5025		} else {
5026		fprintf(stderr,
5027		_
5028		("grubby: extra initrd maximum is %d\n"),
5029		extraInitrdCount);
5030		return 1;
5031		}
5032		break;
5033		}
5034		}
5035
5036	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (arg < -1) {
5037	switch (arg) {	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5038	case 'v':	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5039	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);
5040	return 1;	return 1;
	}
	break;
5041	}	}
	}
5042
5043	if (arg < -1) {	if ((chptr = poptGetArg(optCon))) {
5044	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5045	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	return 1;
5046	poptStrerror(arg));	}
	return 1;
	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureGrub2) {
	cfi = &grub2ConfigType;
	if (envPath)
	cfi->envFile = envPath;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
5047
5048	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5049	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5050	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5051	else	fprintf(stderr,
5052	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5053	cfi = &eliloConfigType;	return 1;
5054	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5055	cfi = &yabootConfigType;	fprintf(stderr,
5056	#elif __sparc__	_
5057	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5058	#elif __s390__	return 1;
5059	cfi = &ziplConfigType;	} else if (configureGrub2) {
5060	#elif __s390x__	cfi = &grub2ConfigType;
5061	cfi = &ziplConfigtype;	if (envPath)
5062	#else	cfi->envFile = envPath;
5063	cfi = &grubConfigType;	} else if (configureLilo) {
5064	#endif	cfi = &liloConfigType;
5065	}	} else if (configureGrub) {
5066		cfi = &grubConfigType;
5067		} else if (configureELilo) {
5068		cfi = &eliloConfigType;
5069		} else if (configureYaboot) {
5070		cfi = &yabootConfigType;
5071		} else if (configureSilo) {
5072		cfi = &siloConfigType;
5073		} else if (configureZipl) {
5074		cfi = &ziplConfigType;
5075		} else if (configureExtLinux) {
5076		cfi = &extlinuxConfigType;
5077		useextlinuxmenu = 1;
5078		}
5079
5080		if (!cfi) {
5081		if (grub2FindConfig(&grub2ConfigType)) {
5082		cfi = &grub2ConfigType;
5083		if (envPath)
5084		cfi->envFile = envPath;
5085		} else
5086		#ifdef __ia64__
5087		cfi = &eliloConfigType;
5088		#elif __powerpc__
5089		cfi = &yabootConfigType;
5090		#elif __sparc__
5091		cfi = &siloConfigType;
5092		#elif __s390__
5093		cfi = &ziplConfigType;
5094		#elif __s390x__
5095		cfi = &ziplConfigtype;
5096		#else
5097		cfi = &grubConfigType;
5098		#endif
5099		}
5100
5101	if (!grubConfig) {	if (!grubConfig) {
5102	if (cfi->findConfig)	if (cfi->findConfig)
5103	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5104	if (!grubConfig)	if (!grubConfig)
5105	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5106	}	}
5107
5108	if (bootloaderProbe && (displayDefault || kernelInfo ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5109	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5110	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
5111	(defaultIndex >= 0))) {	|| displayDefaultTitle
5112	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
5113		fprintf(stderr,
5114		_("grubby: --bootloader-probe may not be used with "
5115	"specified option"));	"specified option"));
5116	return 1;	return 1;
5117	}	}
5118
5119	if ((displayDefault || kernelInfo) && (newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5120	removeKernelPath)) {	removeKernelPath)) {
5121	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5122	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5123	return 1;	return 1;
5124	}	}
5125
5126	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5127	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5128	return 1;	return 1;
5129	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5130	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5131	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5132	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5133	return 1;	return 1;
5134	}	}
5135
5136	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5137	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5138	"not be used together"));	"not be used together"));
5139	return 1;	return 1;
5140	}	}
5141
5142	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5143	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5144	"may not be used together\n"));	"may not be used together\n"));
5145	return 1;	return 1;
5146	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5147	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5148	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5149	return 1;	_("grubby: cannot make removed kernel the default\n"));
5150	} else if (defaultKernel && newKernelPath &&	return 1;
5151	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5152	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5153	defaultKernel = NULL;	makeDefault = 1;
5154	}	defaultKernel = NULL;
5155	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5156	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5157		_("grubby: --set-default and --set-default-index "
5158	"may not be used together\n"));	"may not be used together\n"));
5159	return 1;	return 1;
5160	}	}
5161
5162	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5163	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5164	"is used\n"));	_("grubby: output file must be specified if stdin "
5165	return 1;	"is used\n"));
5166	}	return 1;
5167		}
5168
5169	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5170	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5171	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5172	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5173	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5174	return 1;	return 1;
5175	}	}
5176
5177	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5178
5179	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5180	if (!bootPrefix) {	if (!bootPrefix) {
5181	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5182	if (!bootPrefix) return 1;	if (!bootPrefix)
5183		return 1;
5184		} else {
5185		/* this shouldn't end with a / */
5186		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5187		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5188		}
5189	} else {	} else {
5190	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5191	}	}
	} else {
	bootPrefix = "";
	}
5192
5193	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5194	extraInitrdCount > 0) {	fprintf(stderr,
5195	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5196	return 1;	cfi->defaultConfig);
5197	}	return 1;
5198		}
5199
5200	if (bootloaderProbe) {	if (bootloaderProbe) {
5201	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;
5202	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5203
5204	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5205	if (grub2config) {	if (grub2config) {
5206	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5207	if (!gconfig)	if (!gconfig)
5208	gr2c = 1;	gr2c = 1;
5209	else	else
5210	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5211	}	}
	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");
5212
5213	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5214	}	if (!access(grubconfig, F_OK)) {
5215		gconfig = readConfig(grubconfig, &grubConfigType);
5216		if (!gconfig)
5217		grc = 1;
5218		else
5219		grc = checkForGrub(gconfig);
5220		}
5221
5222	if (grubConfig == NULL) {	if (!access(liloConfigType.defaultConfig, F_OK)) {
5223	printf("Could not find bootloader configuration file.\n");	lconfig =
5224	exit(1);	readConfig(liloConfigType.defaultConfig,
5225	}	&liloConfigType);
5226		if (!lconfig)
5227		lrc = 1;
5228		else
5229		lrc = checkForLilo(lconfig);
5230		}
5231
5232	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5233	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5234		&eliloConfigType);
5235		if (!econfig)
5236		erc = 1;
5237		else
5238		erc = checkForElilo(econfig);
5239		}
5240
5241	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5242	struct singleLine * line;	lconfig =
5243	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5244	char * rootspec;	&extlinuxConfigType);
5245		if (!lconfig)
5246	if (config->defaultImage == -1) return 0;	extrc = 1;
5247	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	else
5248	cfi->defaultIsSaved)	extrc = checkForExtLinux(lconfig);
5249	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|LT_KERNEL_16, 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));
5250
5251	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5252		yconfig = readConfig(yabootConfigType.defaultConfig,
5253		&yabootConfigType);
5254		if (!yconfig)
5255		yrc = 1;
5256		else
5257		yrc = checkForYaboot(yconfig);
5258		}
5259
5260	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5261	struct singleLine * line;	|| erc == 1)
5262	struct singleEntry * entry;	return 1;
	if (config->defaultImage == -1) return 0;
	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
	cfi->defaultIsSaved)
	config->defaultImage = 0;
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
5263
5264	} else {	if (lrc == 2)
5265	char * title;	printf("lilo\n");
5266		if (gr2c == 2)
5267		printf("grub2\n");
5268		if (grc == 2)
5269		printf("grub\n");
5270		if (extrc == 2)
5271		printf("extlinux\n");
5272		if (yrc == 2)
5273		printf("yaboot\n");
5274		if (erc == 2)
5275		printf("elilo\n");
5276
5277		return 0;
5278		}
5279
5280	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	if (grubConfig == NULL) {
5281	line = getLineByType(LT_MENUENTRY, entry->lines);	printf("Could not find bootloader configuration file.\n");
5282	if (!line) return 0;	exit(1);
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5283	}	}
	return 0;
5284
5285	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5286	if (config->defaultImage == -1) return 0;	if (!config)
5287	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&	return 1;
5288	cfi->defaultIsSaved)
5289	config->defaultImage = 0;	if (displayDefault) {
5290	printf("%i\n", config->defaultImage);	struct singleLine *line;
5291	return 0;	struct singleEntry *entry;
5292		char *rootspec;
5293	} else if (kernelInfo)
5294	return displayInfo(config, kernelInfo, bootPrefix);	if (config->defaultImage == NO_DEFAULT_ENTRY)
5295		return 0;
5296	if (copyDefault) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5297	template = findTemplate(config, bootPrefix, NULL, 0, flags);	cfi->defaultIsSaved)
5298	if (!template) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5299	}	entry = findEntryByIndex(config, config->defaultImage);
5300		if (!entry)
5301		return 0;
5302		if (!suitableImage(entry, bootPrefix, 0, flags))
5303		return 0;
5304
5305		line =
5306		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5307		LT_KERNEL_16, entry->lines);
5308		if (!line)
5309		return 0;
5310
5311		rootspec = getRootSpecifier(line->elements[1].item);
5312		printf("%s%s\n", bootPrefix, line->elements[1].item +
5313		((rootspec != NULL) ? strlen(rootspec) : 0));
5314
5315		return 0;
5316
5317		} else if (displayDefaultTitle) {
5318		struct singleLine *line;
5319		struct singleEntry *entry;
5320
5321		if (config->defaultImage == NO_DEFAULT_ENTRY)
5322		return 0;
5323		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5324		cfi->defaultIsSaved)
5325		config->defaultImage = FIRST_ENTRY_INDEX;
5326		entry = findEntryByIndex(config, config->defaultImage);
5327		if (!entry)
5328		return 0;
5329
5330		if (!configureGrub2) {
5331		char *title;
5332		line = getLineByType(LT_TITLE, entry->lines);
5333		if (!line)
5334		return 0;
5335		title = extractTitle(config, line);
5336		if (!title)
5337		return 0;
5338		printf("%s\n", title);
5339		free(title);
5340		} else {
5341		char *title;
5342
5343		dbgPrintf
5344		("This is GRUB2, default title is embeded in menuentry\n");
5345		line = getLineByType(LT_MENUENTRY, entry->lines);
5346		if (!line)
5347		return 0;
5348		title = grub2ExtractTitle(line);
5349		if (title)
5350		printf("%s\n", title);
5351		}
5352		return 0;
5353
5354	markRemovedImage(config, removeKernelPath, bootPrefix);	} else if (displayDefaultIndex) {
5355	markRemovedImage(config, removeMBKernel, bootPrefix);	if (config->defaultImage == NO_DEFAULT_ENTRY)
5356	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 0;
5357	bootPrefix, flags, defaultIndex);	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5358	setFallbackImage(config, newKernelPath != NULL);	cfi->defaultIsSaved)
5359	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	config->defaultImage = FIRST_ENTRY_INDEX;
5360	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	printf("%i\n", config->defaultImage);
5361	if (updateKernelPath && newKernelInitrd) {	return 0;
5362	if (newMBKernel) {
5363	if (addMBInitrd(config, newMBKernel, updateKernelPath,	} else if (kernelInfo)
5364	bootPrefix, newKernelInitrd))	return displayInfo(config, kernelInfo, bootPrefix);
5365	return 1;
5366	} else {	if (copyDefault) {
5367	if (updateInitrd(config, updateKernelPath, bootPrefix,	template = findTemplate(config, bootPrefix, NULL, 0, flags);
5368	newKernelInitrd))	if (!template)
5369	return 1;	return 1;
5370	}	}
5371	}
5372	if (addNewKernel(config, template, bootPrefix, newKernelPath,	markRemovedImage(config, removeKernelPath, bootPrefix);
5373	newKernelTitle, newKernelArgs, newKernelInitrd,	markRemovedImage(config, removeMBKernel, bootPrefix);
5374	(const char **)extraInitrds, extraInitrdCount,	setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5375	newMBKernel, newMBKernelArgs, newDevTreePath)) return 1;	makeDefault, bootPrefix, flags, defaultIndex,
5376		newIndex);
5377		setFallbackImage(config, newKernelPath != NULL);
5378	if (numEntries(config) == 0) {	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5379	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	removeArgs, newMBKernelArgs, removeMBKernelArgs))
5380	"Not writing out new config.\n"));	return 1;
5381	return 1;	if (updateKernelPath && newKernelInitrd) {
5382	}	if (newMBKernel) {
5383		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5384		bootPrefix, newKernelInitrd,
5385		newKernelTitle))
5386		return 1;
5387		} else {
5388		if (updateInitrd(config, updateKernelPath, bootPrefix,
5389		newKernelInitrd, newKernelTitle))
5390		return 1;
5391		}
5392		}
5393		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5394		newKernelTitle, newKernelArgs, newKernelInitrd,
5395		(const char **)extraInitrds, extraInitrdCount,
5396		newMBKernel, newMBKernelArgs, newDevTreePath,
5397		newIndex))
5398		return 1;
5399
5400		if (numEntries(config) == 0) {
5401		fprintf(stderr,
5402		_("grubby: doing this would leave no kernel entries. "
5403		"Not writing out new config.\n"));
5404		return 1;
5405		}
5406
5407	if (!outputFile)	if (!outputFile)
5408	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5409
5410	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5411	}	}

---

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Legend: Removed from v.2687   changed lines   Added in v.3047