Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1736 by niro, Sat Feb 18 01:02:17 2012 UTC	revision 3024 by niro, Tue Jun 27 14:41:50 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	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 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		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;
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_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140		#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/etc/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
200	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	};	{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
248	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
249	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
250	"/boot/grub/grub.cfg",	};
251	NULL
252	};	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static int i = -1;	{
254	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256	if (i == -1) {	"/boot/grub/grub.cfg",
257	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
258	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
259	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396		}
397
398		int sizeOfSingleLine(struct singleLine *line)
399		{
400		int count = 0;
401
402		for (int i = 0; i < line->numElements; i++) {
403		int indentSize = 0;
404
405		count = count + strlen(line->elements[i].item);
406
407		indentSize = strlen(line->elements[i].indent);
408		if (indentSize > 0)
409		count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415		/* room for trailing terminator */
416		count = count + 1;
417
418		return count;
419		}
420
421		static int isquote(char q)
422		{
423		if (q == '\'' || q == '\"')
424		return 1;
425		return 0;
426		}
427
428	dbgPrintf("not found\n");	static int iskernel(enum lineType_e type)
429	return configFiles[i];	{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432		}
433
434		static int isinitrd(enum lineType_e type)
435		{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438		}
439
440		char *grub2ExtractTitle(struct singleLine *line)
441		{
442		char *current;
443		char *current_indent;
444		int current_len;
445		int current_indent_len;
446		int i;
447
448		/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452		i = 1;
453		current = line->elements[i].item;
454		current_len = strlen(current);
455
456		/* if second word is quoted, strip the quotes and return single word */
457		if (isquote(*current) && isquote(current[current_len - 1])) {
458		char *tmp;
459
460		tmp = strdup(current + 1);
461		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;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 0,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	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 NULL;	return 0;
785		}
786
787		static enum lineType_e preferredLineType(enum lineType_e type,
788		struct configFileInfo *cfi)
789		{
790		if (isEfi && cfi == &grub2ConfigType) {
791		switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812		}
813
814		static struct keywordTypes *getKeywordByType(enum lineType_e type,
815		struct configFileInfo *cfi)
816		{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
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	struct keywordTypes * kw;	{
851	for (kw = cfi->keywords; kw->key; kw++) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
854	}	}
855	return LT_UNKNOWN;	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title;	/* bracketed title... let's extract it */
897	title = strdup(line->elements[0].item);	char *title = NULL;
898	title++;	if (line->type == LT_TITLE) {
899	*(title + strlen(title) - 1) = '\0';	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	return title;	if (cfg->cfi->titleBracketed) {
901	}	tmp++;
902		title = strdup(tmp);
903	static int readFile(int fd, char ** bufPtr) {	*(title + strlen(title) - 1) = '\0';
904	int alloced = 0, size = 0, i = 0;	} else {
905	char * buf = NULL;	title = strdup(tmp);
906		}
907	do {	} else if (line->type == LT_MENUENTRY)
908	size += i;	title = strdup(line->elements[1].item);
909	if ((size + 1024) > alloced) {	else
910	alloced += 4096;	return NULL;
911	buf = realloc(buf, alloced + 1);	return title;
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
	buf = realloc(buf, size + 2);
	if (size == 0)
	buf[size++] = '\n';
	else
	if (buf[size - 1] != '\n')
	buf[size++] = '\n';
	buf[size] = '\0';
	*bufPtr = buf;
	return 0;
912	}	}
913
914	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
915	line->indent = NULL;	{
916	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
917	line->numElements = 0;	char *buf = NULL;
	line->next = NULL;
	}
	struct singleLine * lineDup(struct singleLine * line) {
	int i;
	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 (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
918
919	return newLine;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineFree(struct singleLine * line) {	if (i < 0) {
928	int i;	fprintf(stderr, _("error reading input: %s\n"),
929		strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
935		if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
942
943	if (line->elements) free(line->elements);	return 0;
	lineInit(line);
944	}	}
945
946	static int lineWrite(FILE * out, struct singleLine * line,	static void lineInit(struct singleLine *line)
947	struct configFileInfo * cfi) {	{
948	int i;	line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953		}
954
955	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *lineDup(struct singleLine *line)
956		{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->next = NULL;
961	if (fputc('"', out) == EOF) return -1;	newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < newLine->numElements; i++) {
967	if (i < line->numElements - 1)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
972	if (fputc('"', out) == EOF) return -1;	}
973
974	if (fprintf(out, "\n") == -1) return -1;	static void lineFree(struct singleLine *line)
975		{
976		if (line->indent)
977		free(line->indent);
978
979	return 0;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984		if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	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 (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
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	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191	line->elements[i].indent = strdup("");	}
1192	p = line->elements[i].item;	line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	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;
	}
1325
1326	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	entry->multiboot = 0;	sawEntry = 1;
1328	entry->lines = NULL;	if (!entry) {
1329	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	if (line->type == LT_SET_VARIABLE) {	entry->next = malloc(sizeof(*entry));
1333	int i;	entry = entry->next;
1334	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	}
	dbgPrintf("%s", line->indent);
	for (i = 0; i < line->numElements; i++)
	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* 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.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	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 (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1335
1336	for (i = 1; i < line->numElements; i++) {	entry->skip = 0;
1337	strcat(buf, line->elements[i].item);	entry->multiboot = 0;
1338	free(line->elements[i].item);	entry->lines = NULL;
1339		entry->next = NULL;
1340		}
1341
1342	if ((i + 1) != line->numElements) {	if (line->type == LT_SET_VARIABLE) {
1343	strcat(buf, line->elements[i].indent);	dbgPrintf("found 'set' command (%d elements): ",
1344	free(line->elements[i].indent);	line->numElements);
1345	}	dbgPrintf("%s", line->indent);
1346	}	for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	line->elements[1].indent =	line->elements[i].indent);
1349	line->elements[line->numElements - 1].indent;	dbgPrintf("\n");
1350	line->elements[1].item = buf;	struct keywordTypes *kwType =
1351	line->numElements = 2;	getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {	&& !strcmp(line->elements[1].item, kwType->key)
1354	/* Strip off any " which may be present; they'll be put back	&& !is_special_grub2_variable(
1355	on write. This is one of the few (the only?) places that grubby	line->elements[2].item)) {
1356	canonicalizes the output */	dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	if (line->numElements >= 2) {	defaultLine = line;
1359	int last, len;	}
1360		} else if (iskernel(line->type)) {
1361	if (*line->elements[1].item == '"')	/* if by some freak chance this is multiboot and the
1362	memmove(line->elements[1].item, line->elements[1].item + 1,	* "module" lines came earlier in the template, make
1363	strlen(line->elements[1].item + 1) + 1);	* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365	last = line->numElements - 1;	if (entry && entry->multiboot)
1366	len = strlen(line->elements[last].item) - 1;	line->type = LT_HYPER;
	if (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;
1367
1368	if (sawEntry) {	} else if (line->type == LT_MBMODULE) {
1369	if (!entry->lines)	/* go back and fix the LT_KERNEL line to indicate
1370	entry->lines = line;	* LT_HYPER instead, now that we know this is a
1371	else	* multiboot entry.  This only applies to grub, but
1372	last->next = line;	* that's the only place we should find LT_MBMODULE
1373	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	* lines anyway.
1374		*/
1375	/* we could have seen this outside of an entry... if so, we	for (struct singleLine * l = entry->lines; l;
1376	* ignore it like any other line we don't grok */	l = l->next) {
1377	if (line->type == LT_ENTRY_END && sawEntry)	if (l->type == LT_HYPER)
1378	sawEntry = 0;	break;
1379	} else {	else if (iskernel(l->type)) {
1380	if (!cfg->theLines)	l->type = LT_HYPER;
1381	cfg->theLines = line;	break;
1382	else	}
1383	last->next = line;	}
1384	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	entry->multiboot = 1;
	}
1385
1386	last = line;	} else if (line->type == LT_HYPER) {
1387	}	entry->multiboot = 1;
1388
1389	free(incoming);	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	for (int i = 1; i < line->numElements; i++) {
1409	if (defaultLine) {	strcat(buf, line->elements[i].item);
1410	if (cfi->defaultIsVariable) {	free(line->elements[i].item);
1411	char *value = defaultLine->elements[2].item;
1412	while (*value && (*value == '"' || *value == '\'' ||	if ((i + 1) != line->numElements) {
1413	*value == ' ' || *value == '\t'))	strcat(buf, line->elements[i].indent);
1414	value++;	free(line->elements[i].indent);
1415	cfg->defaultImage = strtol(value, &end, 10);	}
1416	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) {
	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;
	}
1417
1418	if (entry){	line->elements[1].indent =
1419	cfg->defaultImage = i;	line->elements[line->numElements - 1].indent;
1420	}else{	line->elements[1].item = buf;
1421	cfg->defaultImage = -1;	line->numElements = 2;
1422	}	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	}	/* let --remove-kernel="TITLE=what" work */
1424	} else {	len = 0;
1425	cfg->defaultImage = 0;	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	return cfg;	/* allocate mem for extra flags. */
1438	}	extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	static void writeDefault(FILE * out, char * indent,	len = strlen(title);
1456	char * separator, struct grubConfig * cfg) {	if (title[len - 1] == quote_char) {
1457	struct singleEntry * entry;	strncat(buf, title, len - 1);
1458	struct singleLine * line;	break;
1459	int i;	} else {
1460		strcat(buf, title);
1461	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	strcat(buf, line->elements[i].indent);
1462		}
1463	if (cfg->defaultImage == DEFAULT_SAVED)	}
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	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;
1464
1465	entry = cfg->entries;	/* get extras */
1466	while (entry && entry->skip) entry = entry->next;	int count = 0;
1467		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	i = 0;	if (!strcmp
1476	while (entry && i < image) {	(line->elements[i].item, "menuentry"))
1477	entry = entry->next;	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	while (entry && entry->skip) entry = entry->next;	len = strlen(line->elements[i].item);
	i++;
	}
1488
1489	if (!entry) return;	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	line = getLineByType(LT_TITLE, entry->lines);	/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (line && line->numElements >= 2)	if (isquote(*line->elements[1].item))
1511	fprintf(out, "%sdefault%s%s\n", indent, separator,	memmove(line->elements[1].item,
1512	line->elements[1].item);	line->elements[1].item + 1,
1513	else if (line && (line->numElements == 1) &&	strlen(line->elements[1].item +
1514	cfg->cfi->titleBracketed) {	1) + 1);
1515	fprintf(out, "%sdefault%s%s\n", indent, separator,
1516	extractTitle(line));	last = line->numElements - 1;
1517	}	len = strlen(line->elements[last].item) - 1;
1518	}	if (isquote(line->elements[last].item[len]))
1519	}	line->elements[last].item[len] = '\0';
1520	}	}
1521		}
1522
1523	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	FILE * out;	defaultLine = line;
1526	struct singleLine * line;	}
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	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;
	}
	}
	}
1527
1528	line = cfg->theLines;	/* If we find a generic config option which should live at the
1529	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	top of the file, move it there. Old versions of grubby were
1530	while (line) {	probably responsible for putting new images in the wrong
1531	if (line->type == LT_SET_VARIABLE && defaultKw &&	place in front of it anyway. */
1532	line->numElements == 3 &&	if (sawEntry && line->type == LT_GENERIC) {
1533	!strcmp(line->elements[1].item, defaultKw->key)) {	struct singleLine **l = &cfg->theLines;
1534	writeDefault(out, line->indent, line->elements[0].indent, cfg);	struct singleLine **last_nonws = &cfg->theLines;
1535	needs &= ~MAIN_DEFAULT;	while (*l) {
1536	} else if (line->type == LT_DEFAULT) {	if ((*l)->type != LT_WHITESPACE)
1537	writeDefault(out, line->indent, line->elements[0].indent, cfg);	last_nonws = &((*l)->next);
1538	needs &= ~MAIN_DEFAULT;	l = &((*l)->next);
1539	} else if (line->type == LT_FALLBACK) {	}
1540	if (cfg->fallbackImage > -1)	line->next = *last_nonws;
1541	fprintf(out, "%s%s%s%d\n", line->indent,	*last_nonws = line;
1542	line->elements[0].item, line->elements[0].indent,	movedLine = 1;
1543	cfg->fallbackImage);	continue; /* without setting 'last' */
1544	} 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;
	}
	}
1545
1546	line = line->next;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1558	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1559	needs &= ~MAIN_DEFAULT;	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	i = 0;	/* we could have seen this outside of an entry... if
1566	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1567	if (entry->skip) continue;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	line = entry->lines;	last = line;
	while (line) {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
1580	}	}
	}
1581
1582	if (tmpOutName) {	free(incoming);
1583	if (rename(tmpOutName, outName)) {
1584	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	tmpOutName, outName, strerror(errno));	if (defaultLine) {
1586	unlink(outName);	if (defaultLine->numElements > 2 &&
1587	return 1;	cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694	}	}
	}
1695
1696	return 0;	return cfg;
1697	}	}
1698
1699	static int numEntries(struct grubConfig *cfg) {	static void writeDefault(FILE * out, char *indent,
1700	int i = 0;	char *separator, struct grubConfig *cfg)
1701	struct singleEntry * entry;	{
1702		struct singleEntry *entry;
1703	entry = cfg->entries;	struct singleLine *line;
1704	while (entry) {	int i;
1705	if (!entry->skip)
1706	i++;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	entry = entry->next;	return;
1708	}
1709	return i;	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		entry = findEntryByIndex(cfg, cfg->defaultImage);
1716		line = getLineByType(LT_MENUENTRY, entry->lines);
1717		if (!line)
1718		line = getLineByType(LT_TITLE, entry->lines);
1719		if (line) {
1720		title = extractTitle(cfg, line);
1721		if (title)
1722		cfg->cfi->setEnv(cfg->cfi,
1723		"saved_entry", title);
1724		}
1725		}
1726		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1727		if (cfg->cfi->defaultIsIndex) {
1728		if (cfg->cfi->defaultIsVariable) {
1729		fprintf(out, "%sset default=\"%d\"\n", indent,
1730		cfg->defaultImage);
1731		} else {
1732		fprintf(out, "%sdefault%s%d\n", indent,
1733		separator, cfg->defaultImage);
1734		}
1735		} else {
1736		int image = cfg->defaultImage;
1737
1738		entry = cfg->entries;
1739		while (entry && entry->skip)
1740		entry = entry->next;
1741
1742		i = 0;
1743		while (entry && i < image) {
1744		entry = entry->next;
1745
1746		while (entry && entry->skip)
1747		entry = entry->next;
1748		i++;
1749		}
1750
1751		if (!entry)
1752		return;
1753
1754		line = getLineByType(LT_TITLE, entry->lines);
1755
1756		if (line && line->numElements >= 2)
1757		fprintf(out, "%sdefault%s%s\n", indent,
1758		separator, line->elements[1].item);
1759		else if (line && (line->numElements == 1)
1760		&& cfg->cfi->titleBracketed) {
1761		char *title = extractTitle(cfg, line);
1762		if (title) {
1763		fprintf(out, "%sdefault%s%s\n", indent,
1764		separator, title);
1765		free(title);
1766		}
1767		}
1768		}
1769		}
1770	}	}
1771
1772	static char *findDiskForRoot()	static int writeConfig(struct grubConfig *cfg, char *outName,
1773		const char *prefix)
1774	{	{
1775	int fd;	FILE *out;
1776	char buf[65536];	struct singleLine *line;
1777	char *devname;	struct singleEntry *entry;
1778	char *chptr;	char *tmpOutName;
1779	int rc;	int needs = MAIN_DEFAULT;
1780		struct stat sb;
1781		int i;
1782
1783		if (!strcmp(outName, "-")) {
1784		out = stdout;
1785		tmpOutName = NULL;
1786		} else {
1787		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1788		char *buf;
1789		int len = 256;
1790		int rc;
1791
1792		/* most likely the symlink is relative, so change our
1793		directory to the dir of the symlink */
1794		char *dir = strdupa(outName);
1795		rc = chdir(dirname(dir));
1796		do {
1797		buf = alloca(len + 1);
1798		rc = readlink(basename(outName), buf, len);
1799		if (rc == len)
1800		len += 256;
1801		} while (rc == len);
1802
1803		if (rc < 0) {
1804		fprintf(stderr,
1805		_
1806		("grubby: error readlink link %s: %s\n"),
1807		outName, strerror(errno));
1808		return 1;
1809		}
1810
1811	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	outName = buf;
1812	fprintf(stderr, "grubby: failed to open %s: %s\n",	outName[rc] = '\0';
1813	_PATH_MOUNTED, strerror(errno));	}
	return NULL;
	}
1814
1815	rc = read(fd, buf, sizeof(buf) - 1);	tmpOutName = alloca(strlen(outName) + 2);
1816	if (rc <= 0) {	sprintf(tmpOutName, "%s-", outName);
1817	fprintf(stderr, "grubby: failed to read %s: %s\n",	out = fopen(tmpOutName, "w");
1818	_PATH_MOUNTED, strerror(errno));	if (!out) {
1819	close(fd);	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1820	return NULL;	tmpOutName, strerror(errno));
1821	}	return 1;
1822	close(fd);	}
1823	buf[rc] = '\0';
1824	chptr = buf;	if (!stat(outName, &sb)) {
1825		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1826	while (chptr && chptr != buf+rc) {	fprintf(stderr,
1827	devname = chptr;	_
1828		("grubby: error setting perms on %s: %s\n"),
1829	/*	tmpOutName, strerror(errno));
1830	* The first column of a mtab entry is the device, but if the entry is a	fclose(out);
1831	* special device it won't start with /, so move on to the next line.	unlink(tmpOutName);
1832	*/	return 1;
1833	if (*devname != '/') {	}
1834	chptr = strchr(chptr, '\n');	}
1835	if (chptr)	}
1836	chptr++;
1837	continue;	line = cfg->theLines;
1838	}	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1839		while (line) {
1840	/* Seek to the next space */	if (line->type == LT_SET_VARIABLE && defaultKw &&
1841	chptr = strchr(chptr, ' ');	line->numElements == 3 &&
1842	if (!chptr) {	!strcmp(line->elements[1].item, defaultKw->key) &&
1843	fprintf(stderr, "grubby: error parsing %s: %s\n",	!is_special_grub2_variable(line->elements[2].item)) {
1844	_PATH_MOUNTED, strerror(errno));	writeDefault(out, line->indent,
1845	return NULL;	line->elements[0].indent, cfg);
1846	}	needs &= ~MAIN_DEFAULT;
1847		} else if (line->type == LT_DEFAULT) {
1848	/*	writeDefault(out, line->indent,
1849	* The second column of a mtab entry is the mount point, we are looking	line->elements[0].indent, cfg);
1850	* for '/' obviously.	needs &= ~MAIN_DEFAULT;
1851	*/	} else if (line->type == LT_FALLBACK) {
1852	if (*(++chptr) == '/' && *(++chptr) == ' ') {	if (cfg->fallbackImage > -1)
1853	/*	fprintf(out, "%s%s%s%d\n", line->indent,
1854	* Move back 2, which is the first space after the device name, set	line->elements[0].item,
1855	* it to \0 so strdup will just get the devicename.	line->elements[0].indent,
1856	*/	cfg->fallbackImage);
1857	chptr -= 2;	} else {
1858	*chptr = '\0';	if (lineWrite(out, line, cfg->cfi) == -1) {
1859	return strdup(devname);	fprintf(stderr,
1860	}	_("grubby: error writing %s: %s\n"),
1861		tmpOutName, strerror(errno));
1862	/* Next line */	fclose(out);
1863	chptr = strchr(chptr, '\n');	unlink(tmpOutName);
1864	if (chptr)	return 1;
1865	chptr++;	}
1866	}	}
1867
1868		line = line->next;
1869		}
1870
1871		if (needs & MAIN_DEFAULT) {
1872		writeDefault(out, cfg->primaryIndent, "=", cfg);
1873		needs &= ~MAIN_DEFAULT;
1874		}
1875
1876		i = 0;
1877		while ((entry = findEntryByIndex(cfg, i++))) {
1878		if (entry->skip)
1879		continue;
1880
1881		line = entry->lines;
1882		while (line) {
1883		if (lineWrite(out, line, cfg->cfi) == -1) {
1884		fprintf(stderr,
1885		_("grubby: error writing %s: %s\n"),
1886		tmpOutName, strerror(errno));
1887		fclose(out);
1888		unlink(tmpOutName);
1889		return 1;
1890		}
1891		line = line->next;
1892		}
1893		}
1894
1895	return NULL;	if (tmpOutName) {
1896		if (rename(tmpOutName, outName)) {
1897		fprintf(stderr,
1898		_("grubby: error moving %s to %s: %s\n"),
1899		tmpOutName, outName, strerror(errno));
1900		unlink(outName);
1901		return 1;
1902		}
1903		}
1904
1905		return 0;
1906	}	}
1907
1908	void printEntry(struct singleEntry * entry) {	static int numEntries(struct grubConfig *cfg)
1909	int i;	{
1910	struct singleLine * line;	int i = 0;
1911		struct singleEntry *entry;
1912
1913	for (line = entry->lines; line; line = line->next) {	entry = cfg->entries;
1914	fprintf(stderr, "DBG: %s", line->indent);	while (entry) {
1915	for (i = 0; i < line->numElements; i++) {	if (!entry->skip)
1916	fprintf(stderr, "%s%s",	i++;
1917	line->elements[i].item, line->elements[i].indent);	entry = entry->next;
1918	}	}
1919	fprintf(stderr, "\n");	return i;
	}
1920	}	}
1921
1922	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	static char *findDiskForRoot()
1923	{	{
1924	va_list argp;	int fd;
1925		char buf[65536];
1926		char *devname;
1927		char *chptr;
1928		int rc;
1929
1930		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1931		fprintf(stderr, "grubby: failed to open %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		return NULL;
1934		}
1935
1936		rc = read(fd, buf, sizeof(buf) - 1);
1937		if (rc <= 0) {
1938		fprintf(stderr, "grubby: failed to read %s: %s\n",
1939		_PATH_MOUNTED, strerror(errno));
1940		close(fd);
1941		return NULL;
1942		}
1943		close(fd);
1944		buf[rc] = '\0';
1945		chptr = buf;
1946
1947	if (!debug)	char *foundanswer = NULL;
	return;
1948
1949	va_start(argp, fmt);	while (chptr && chptr != buf + rc) {
1950	fprintf(stderr, "DBG: Image entry failed: ");	devname = chptr;
	vfprintf(stderr, fmt, argp);
	printEntry(entry);
	va_end(argp);
	}
	int suitableImage(struct singleEntry * entry, const char * bootPrefix,
	int skipRemoved, int flags) {
	struct singleLine * line;
	char * fullName;
	int i;
	char * dev;
	char * rootspec;
	char * rootdev;
1951
1952	if (skipRemoved && entry->skip) {	/*
1953	notSuitablePrintf(entry, "marked to skip\n");	* The first column of a mtab entry is the device, but if the
1954	return 0;	* entry is a special device it won't start with /, so move
1955	}	* on to the next line.
1956		*/
1957		if (*devname != '/') {
1958		chptr = strchr(chptr, '\n');
1959		if (chptr)
1960		chptr++;
1961		continue;
1962		}
1963
1964	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	/* Seek to the next space */
1965	if (!line) {	chptr = strchr(chptr, ' ');
1966	notSuitablePrintf(entry, "no line found\n");	if (!chptr) {
1967	return 0;	fprintf(stderr, "grubby: error parsing %s: %s\n",
1968	}	_PATH_MOUNTED, strerror(errno));
1969	if (line->numElements < 2) {	return NULL;
1970	notSuitablePrintf(entry, "line has only %d elements\n",	}
	line->numElements);
	return 0;
	}
1971
1972	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	/*
1973		* The second column of a mtab entry is the mount point, we
1974		* are looking for '/' obviously.
1975		*/
1976		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1977		/* remember the last / entry in mtab */
1978		foundanswer = devname;
1979		}
1980
1981	fullName = alloca(strlen(bootPrefix) +	/* Next line */
1982	strlen(line->elements[1].item) + 1);	chptr = strchr(chptr, '\n');
1983	rootspec = getRootSpecifier(line->elements[1].item);	if (chptr)
1984	sprintf(fullName, "%s%s", bootPrefix,	chptr++;
1985	line->elements[1].item + (rootspec ? strlen(rootspec) : 0));	}
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "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);
1986
1987	if (line && line->numElements >= 2) {	/* Return the last / entry found */
1988	dev = line->elements[1].item;	if (foundanswer) {
1989	} else {	chptr = strchr(foundanswer, ' ');
1990	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	*chptr = '\0';
1991	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	return strdup(foundanswer);
	*/
	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);
	/* failed to find one */
	if (!line) {
	notSuitablePrintf(entry, "no line found\n");
	return 0;
	}
	for (i = 1; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements)
	dev = line->elements[i].item + 5;
	else {
	notSuitablePrintf(entry, "no root= entry found\n");
	/* it failed too...  can't find root= */
	return 0;
	}
1992	}	}
	}
1993
1994	dev = getpathbyspec(dev);	return NULL;
1995	if (!getpathbyspec(dev)) {	}
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
	dev = getpathbyspec(dev);
1996
1997	rootdev = findDiskForRoot();	void printEntry(struct singleEntry *entry, FILE * f)
1998	if (!rootdev) {	{
1999	notSuitablePrintf(entry, "can't find root device\n");	int i;
2000	return 0;	struct singleLine *line;
	}
2001
2002	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	for (line = entry->lines; line; line = line->next) {
2003	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	log_message(f, "DBG: %s", line->indent);
2004	getuuidbydev(rootdev), getuuidbydev(dev));	for (i = 0; i < line->numElements; i++) {
2005	free(rootdev);	/* Need to handle this, because we strip the quotes from
2006	return 0;	* menuentry when read it. */
2007	}	if (line->type == LT_MENUENTRY && i == 1) {
2008		if (!isquote(*line->elements[i].item))
2009		log_message(f, "\'%s\'",
2010		line->elements[i].item);
2011		else
2012		log_message(f, "%s",
2013		line->elements[i].item);
2014		log_message(f, "%s", line->elements[i].indent);
2015
2016	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	continue;
2017	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	}
2018	getuuidbydev(rootdev), getuuidbydev(dev));
2019	free(rootdev);	log_message(f, "%s%s",
2020	return 0;	line->elements[i].item,
2021	}	line->elements[i].indent);
2022		}
2023		log_message(f, "\n");
2024		}
2025		}
2026
2027		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2028		...)
2029		{
2030		static int once;
2031		va_list argp, argq;
2032
2033		va_start(argp, fmt);
2034
2035		va_copy(argq, argp);
2036		if (!once) {
2037		log_time(NULL);
2038		log_message(NULL, "command line: %s\n", saved_command_line);
2039		}
2040		log_message(NULL, "DBG: Image entry %s: ",
2041		okay ? "succeeded" : "failed");
2042		log_vmessage(NULL, fmt, argq);
2043
2044	free(rootdev);	printEntry(entry, NULL);
2045		va_end(argq);
2046
2047		if (!debug) {
2048		once = 1;
2049		va_end(argp);
2050		return;
2051		}
2052
2053		if (okay) {
2054		va_end(argp);
2055		return;
2056		}
2057
2058	return 1;	if (!once)
2059		log_message(stderr, "DBG: command line: %s\n",
2060		saved_command_line);
2061		once = 1;
2062		fprintf(stderr, "DBG: Image entry failed: ");
2063		vfprintf(stderr, fmt, argp);
2064		printEntry(entry, stderr);
2065		va_end(argp);
2066	}	}
2067
2068	/* returns the first match on or after the one pointed to by index (if index	#define beginswith(s, c) ((s) && (s)[0] == (c))
	is not NULL) which is not marked as skip */
	struct singleEntry * findEntryByPath(struct grubConfig * config,
	const char * kernel, const char * prefix,
	int * index) {
	struct singleEntry * entry = NULL;
	struct singleLine * line;
	int i;
	char * chptr;
	char * rootspec = NULL;
	enum lineType_e checkType = LT_KERNEL;
2069
2070	if (isdigit(*kernel)) {	static int endswith(const char *s, char c)
2071	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	{
2072		int slen;
2073
2074	i = 0;	if (!s || !s[0])
2075	indexVars[i] = strtol(kernel, &chptr, 10);	return 0;
2076	while (*chptr == ',') {	slen = strlen(s) - 1;
2077	i++;
2078	kernel = chptr + 1;	return s[slen] == c;
2079	indexVars[i] = strtol(kernel, &chptr, 10);	}
2080
2081		int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2082		int skipRemoved, int flags)
2083		{
2084		struct singleLine *line;
2085		char *fullName;
2086		int i;
2087		char *dev;
2088		char *rootspec;
2089		char *rootdev;
2090
2091		if (skipRemoved && entry->skip) {
2092		notSuitablePrintf(entry, 0, "marked to skip\n");
2093		return 0;
2094	}	}
2095
2096	if (*chptr) {	line =
2097	/* can't parse it, bail */	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2098	return NULL;	entry->lines);
2099		if (!line) {
2100		notSuitablePrintf(entry, 0, "no line found\n");
2101		return 0;
2102		}
2103		if (line->numElements < 2) {
2104		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2105		line->numElements);
2106		return 0;
2107	}	}
2108
2109	indexVars[i + 1] = -1;	if (flags & GRUBBY_BADIMAGE_OKAY) {
2110		notSuitablePrintf(entry, 1, "\n");
2111	i = 0;	return 1;
	if (index) {
	while (i < *index) i++;
	if (indexVars[i] == -1) return NULL;
2112	}	}
2113
2114	entry = findEntryByIndex(config, indexVars[i]);	fullName = alloca(strlen(bootPrefix) +
2115	if (!entry) return NULL;	strlen(line->elements[1].item) + 1);
2116		rootspec = getRootSpecifier(line->elements[1].item);
2117		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2118		int hasslash = endswith(bootPrefix, '/') ||
2119		beginswith(line->elements[1].item + rootspec_offset, '/');
2120		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2121		line->elements[1].item + rootspec_offset);
2122		if (access(fullName, R_OK)) {
2123		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2124		return 0;
2125		}
2126		for (i = 2; i < line->numElements; i++)
2127		if (!strncasecmp(line->elements[i].item, "root=", 5))
2128		break;
2129		if (i < line->numElements) {
2130		dev = line->elements[i].item + 5;
2131		} else {
2132		/* look for a lilo style LT_ROOT line */
2133		line = getLineByType(LT_ROOT, entry->lines);
2134
2135	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (line && line->numElements >= 2) {
2136	if (!line) return NULL;	dev = line->elements[1].item;
2137		} else {
2138		/* didn't succeed in finding a LT_ROOT, let's try
2139		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2140		* for the args, so check that too.
2141		*/
2142		line =
2143		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2144		entry->lines);
2145
2146		/* failed to find one */
2147		if (!line) {
2148		notSuitablePrintf(entry, 0, "no line found\n");
2149		return 0;
2150		}
2151
2152	if (index) *index = indexVars[i];	for (i = 1; i < line->numElements; i++)
2153	return entry;	if (!strncasecmp
2154	}	(line->elements[i].item, "root=", 5))
2155		break;
2156	if (!strcmp(kernel, "DEFAULT")) {	if (i < line->numElements)
2157	if (index && *index > config->defaultImage) {	dev = line->elements[i].item + 5;
2158	entry = NULL;	else {
2159	} else {	notSuitablePrintf(entry, 0,
2160	entry = findEntryByIndex(config, config->defaultImage);	"no root= entry found\n");
2161	if (entry && entry->skip)	/* it failed too...  can't find root= */
2162	entry = NULL;	return 0;
2163	else if (index)	}
2164	*index = config->defaultImage;	}
2165	}	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2166
2167	while ((entry = findEntryByIndex(config, i))) {	dev = getpathbyspec(dev);
2168	if (!entry->skip) break;	if (!getpathbyspec(dev)) {
2169	i++;	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2170		dev);
2171		return 0;
2172		} else
2173		dev = getpathbyspec(dev);
2174
2175		rootdev = findDiskForRoot();
2176		if (!rootdev) {
2177		notSuitablePrintf(entry, 0, "can't find root device\n");
2178		return 0;
2179	}	}
2180
2181	if (entry && index)	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2182	*index = i;	notSuitablePrintf(entry, 0,
2183	} else {	"uuid missing: rootdev %s, dev %s\n",
2184	if (index)	getuuidbydev(rootdev), getuuidbydev(dev));
2185	i = *index;	free(rootdev);
2186	else	return 0;
2187	i = 0;	}
2188
2189	if (!strncmp(kernel, "TITLE=", 6)) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2190	prefix = "";	notSuitablePrintf(entry, 0,
2191	checkType = LT_TITLE;	"uuid mismatch: rootdev %s, dev %s\n",
2192	kernel += 6;	getuuidbydev(rootdev), getuuidbydev(dev));
2193		free(rootdev);
2194		return 0;
2195	}	}
2196
2197	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	free(rootdev);
2198	if (entry->skip) continue;	notSuitablePrintf(entry, 1, "\n");
2199
2200	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	return 1;
2201		}
2202
2203	/* check all the lines matching checkType */	/* returns the first match on or after the one pointed to by index (if index
2204	for (line = entry->lines; line; line = line->next) {	is not NULL) which is not marked as skip */
2205	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	struct singleEntry *findEntryByPath(struct grubConfig *config,
2206	LT_KERNEL|LT_MBMODULE|LT_HYPER :	const char *kernel, const char *prefix,
2207	checkType, line);	int *index)
2208	if (!line) break;  /* not found in this entry */	{
2209		struct singleEntry *entry = NULL;
2210		struct singleLine *line;
2211		int i;
2212		char *chptr;
2213		char *rootspec = NULL;
2214		enum lineType_e checkType = LT_KERNEL;
2215
2216		if (isdigit(*kernel)) {
2217		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2218
2219		i = 0;
2220		indexVars[i] = strtol(kernel, &chptr, 10);
2221		while (*chptr == ',') {
2222		i++;
2223		kernel = chptr + 1;
2224		indexVars[i] = strtol(kernel, &chptr, 10);
2225		}
2226
2227	if (line && line->numElements >= 2) {	if (*chptr) {
2228	rootspec = getRootSpecifier(line->elements[1].item);	/* can't parse it, bail */
2229	if (!strcmp(line->elements[1].item +	return NULL;
2230	((rootspec != NULL) ? strlen(rootspec) : 0),	}
2231	kernel + strlen(prefix)))
2232	break;	indexVars[i + 1] = -1;
2233
2234		i = 0;
2235		if (index) {
2236		while (i < *index) {
2237		i++;
2238		if (indexVars[i] == -1)
2239		return NULL;
2240		}
2241		}
2242
2243		entry = findEntryByIndex(config, indexVars[i]);
2244		if (!entry)
2245		return NULL;
2246
2247		line =
2248		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2249		LT_KERNEL_16, entry->lines);
2250		if (!line)
2251		return NULL;
2252
2253		if (index)
2254		*index = indexVars[i];
2255		return entry;
2256		}
2257
2258		if (!strcmp(kernel, "DEFAULT")) {
2259		if (index && *index > config->defaultImage) {
2260		entry = NULL;
2261		} else {
2262		entry = findEntryByIndex(config, config->defaultImage);
2263		if (entry && entry->skip)
2264		entry = NULL;
2265		else if (index)
2266		*index = config->defaultImage;
2267		}
2268		} else if (!strcmp(kernel, "ALL")) {
2269		if (index)
2270		i = *index;
2271		else
2272		i = 0;
2273
2274		while ((entry = findEntryByIndex(config, i))) {
2275		if (!entry->skip)
2276		break;
2277		i++;
2278		}
2279
2280		if (entry && index)
2281		*index = i;
2282		} else {
2283		if (index)
2284		i = *index;
2285		else
2286		i = 0;
2287
2288		if (!strncmp(kernel, "TITLE=", 6)) {
2289		prefix = "";
2290		checkType = LT_TITLE | LT_MENUENTRY;
2291		kernel += 6;
2292		}
2293
2294		for (entry = findEntryByIndex(config, i); entry;
2295		entry = entry->next, i++) {
2296		if (entry->skip)
2297		continue;
2298
2299		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2300		checkType, kernel, entry);
2301
2302		/* check all the lines matching checkType */
2303		for (line = entry->lines; line; line = line->next) {
2304		enum lineType_e ct = checkType;
2305		if (entry->multiboot && checkType == LT_KERNEL)
2306		ct = LT_KERNEL | LT_KERNEL_EFI |
2307		LT_MBMODULE | LT_HYPER |
2308		LT_KERNEL_16;
2309		else if (checkType & LT_KERNEL)
2310		ct = checkType | LT_KERNEL_EFI |
2311		LT_KERNEL_16;
2312		line = getLineByType(ct, line);
2313		if (!line)
2314		break; /* not found in this entry */
2315
2316		if (line && line->type != LT_MENUENTRY &&
2317		line->numElements >= 2) {
2318		rootspec =
2319		getRootSpecifier(line->elements[1].
2320		item);
2321		if (!strcmp
2322		(line->elements[1].item +
2323		((rootspec !=
2324		NULL) ? strlen(rootspec) : 0),
2325		kernel + strlen(prefix)))
2326		break;
2327		}
2328		if (line->type == LT_MENUENTRY &&
2329		!strcmp(line->elements[1].item, kernel))
2330		break;
2331		}
2332
2333		/* make sure this entry has a kernel identifier; this skips
2334		* non-Linux boot entries (could find netbsd etc, though, which is
2335		* unfortunate)
2336		*/
2337		if (line
2338		&& getLineByType(LT_KERNEL | LT_HYPER |
2339		LT_KERNEL_EFI | LT_KERNEL_16,
2340		entry->lines))
2341		break; /* found 'im! */
2342	}	}
	}
2343
2344	/* make sure this entry has a kernel identifier; this skips	if (index)
2345	* non-Linux boot entries (could find netbsd etc, though, which is	*index = i;
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2346	}	}
2347
2348	if (index) *index = i;	return entry;
2349	}	}
2350
2351		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2352		int *index)
2353		{
2354		struct singleEntry *entry;
2355		struct singleLine *line;
2356		int i;
2357		char *newtitle;
2358
2359		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2360		if (index && i < *index)
2361		continue;
2362		line = getLineByType(LT_TITLE, entry->lines);
2363		if (!line)
2364		line = getLineByType(LT_MENUENTRY, entry->lines);
2365		if (!line)
2366		continue;
2367		newtitle = grub2ExtractTitle(line);
2368		if (!newtitle)
2369		continue;
2370		if (!strcmp(title, newtitle))
2371		break;
2372		}
2373
2374		if (!entry)
2375		return NULL;
2376
2377	return entry;	if (index)
2378		*index = i;
2379		return entry;
2380	}	}
2381
2382	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2383	struct singleEntry * entry;	{
2384		struct singleEntry *entry;
2385
2386	entry = cfg->entries;	entry = cfg->entries;
2387	while (index && entry) {	while (index && entry) {
2388	entry = entry->next;	entry = entry->next;
2389	index--;	index--;
2390	}	}
2391
2392	return entry;	return entry;
2393	}	}
2394
2395	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1603  struct singleEntry * findEntryByIndex(st	Line 2397  struct singleEntry * findEntryByIndex(st
2397	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2398	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2399	* bail. */	* bail. */
2400	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2401	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2402	struct singleEntry * entry, * entry2;	{
2403	int index;	struct singleEntry *entry, *entry2;
2404		int index;
2405	if (cfg->defaultImage > -1) {
2406	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2407	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2408	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2409	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2410		if (defTitle) {
2411		int index = 0;
2412		if (isnumber(defTitle)) {
2413		index = atoi(defTitle);
2414		entry = findEntryByIndex(cfg, index);
2415		} else {
2416		entry =
2417		findEntryByTitle(cfg, defTitle,
2418		&index);
2419		}
2420		if (entry
2421		&& suitableImage(entry, prefix, skipRemoved,
2422		flags)) {
2423		cfg->defaultImage = index;
2424		if (indexPtr)
2425		*indexPtr = index;
2426		return entry;
2427		}
2428		}
2429		}
2430		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2431		entry = findEntryByIndex(cfg, cfg->defaultImage);
2432		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2433		if (indexPtr)
2434		*indexPtr = cfg->defaultImage;
2435		return entry;
2436		}
2437	}	}
	}
2438
2439	index = 0;	index = 0;
2440	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2441	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2442	int j;	int j, unmodifiedIndex;
2443	for (j = 0; j < index; j++) {
2444	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2445	if (entry2->skip) index--;
2446	}	for (j = 0; j < unmodifiedIndex; j++) {
2447	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2448		if (entry2->skip)
2449		index--;
2450		}
2451		if (indexPtr)
2452		*indexPtr = index;
2453
2454		return entry;
2455		}
2456
2457	return entry;	index++;
2458	}	}
2459
2460	index++;	fprintf(stderr,
2461	}	_("grubby fatal error: unable to find a suitable template\n"));
	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));
2462
2463	return NULL;	return NULL;
2464	}	}
2465
2466	char * findBootPrefix(void) {	char *findBootPrefix(void)
2467	struct stat sb, sb2;	{
2468		struct stat sb, sb2;
2469
2470	stat("/", &sb);	stat("/", &sb);
2471	#ifdef __ia64__	#ifdef __ia64__
2472	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2473	#else	#else
2474	stat("/boot", &sb2);	stat("/boot", &sb2);
2475	#endif	#endif
2476
2477	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2478	return strdup("");	return strdup("");
2479
2480	#ifdef __ia64__	#ifdef __ia64__
2481	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2482	#else	#else
2483	return strdup("/boot");	return strdup("/boot");
2484	#endif	#endif
2485	}	}
2486
2487	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2488	const char * prefix) {	const char *prefix)
2489	struct singleEntry * entry;	{
2490		struct singleEntry *entry;
	if (!image) return;
	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
	entry->skip = 1;
	}
	void setDefaultImage(struct grubConfig * config, int hasNew,
	const char * defaultKernelPath, int newIsDefault,
	const char * prefix, int flags) {
	struct singleEntry * entry, * entry2, * newDefault;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if (config->defaultImage == DEFAULT_SAVED)
	/* 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;
2491
2492	if (entry && !entry->skip) {	if (!image)
2493	/* we can preserve the default */	return;
	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;
	}
	}
2494
2495	void setFallbackImage(struct grubConfig * config, int hasNew) {	/* check and see if we're removing the default image */
2496	struct singleEntry * entry, * entry2;	if (isdigit(*image)) {
2497	int j;	entry = findEntryByPath(cfg, image, prefix, NULL);
2498		if (entry)
2499	if (config->fallbackImage == -1) return;	entry->skip = 1;
2500		return;
2501	entry = findEntryByIndex(config, config->fallbackImage);	}
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2502
2503	if (hasNew)	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2504	config->fallbackImage++;	entry->skip = 1;
	/* 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--;
	}
2505	}	}
2506
2507	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2508	struct singleLine * line;	const char *defaultKernelPath, int newBootEntryIsDefault,
2509	char * root = NULL;	const char *prefix, int flags,
2510	int i;	int newDefaultBootEntryIndex, int newBootEntryIndex)
2511		{
2512	printf("index=%d\n", index);	struct singleEntry *bootEntry, *newDefault;
2513		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2514
2515	printf("kernel=%s\n", line->elements[1].item);	/* handle the two cases where the user explictly picks the default
2516		* boot entry index as it would exist post-modification */
2517
2518	if (line->numElements >= 3) {	/* Case 1: user chose to make the latest boot entry the default */
2519	printf("args=\"");	if (newBootEntryIsDefault) {
2520	i = 2;	config->defaultImage = newBootEntryIndex;
2521	while (i < line->numElements) {	return;
2522	if (!strncmp(line->elements[i].item, "root=", 5)) {	}
2523	root = line->elements[i].item + 5;
2524	} else {	/* Case 2: user picked an arbitrary index as the default boot entry */
2525	printf("%s%s", line->elements[i].item,	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2526	line->elements[i].indent);	&& config->cfi->defaultIsIndex) {
2527	}	indexToVerify = newDefaultBootEntryIndex;
2528
2529		/* user chose to make latest boot entry the default */
2530		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2531		config->defaultImage = newBootEntryIndex;
2532		return;
2533		}
2534
2535	i++;	/* the user picks the default index based on the
2536	}	* order of the bootloader configuration after
2537	printf("\"\n");	* modification; ensure we are checking for the
2538	} else {	* existence of the correct entry */
2539	line = getLineByType(LT_KERNELARGS, entry->lines);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2540	if (line) {	if (!config->isModified)
2541	char * s;	indexToVerify--;
2542		}
2543
2544	printf("args=\"");	/* verify the user selected index will exist */
2545	i = 1;	if (findEntryByIndex(config, indexToVerify)) {
2546	while (i < line->numElements) {	config->defaultImage = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
2547	} else {	} else {
2548	s = line->elements[i].item;	config->defaultImage = NO_DEFAULT_ENTRY;
	printf("%s%s", s, line->elements[i].indent);
2549	}	}
2550
2551	i++;	return;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
2552	}	}
	}
2553
2554	if (!root) {	/* handle cases where the index value may shift */
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2555
2556	if (root) {	/* check validity of existing default or first-entry-found
2557	char * s = alloca(strlen(root) + 1);	selection */
2558		if (defaultKernelPath) {
2559	strcpy(s, root);	/* user requested first-entry-found */
2560	if (s[strlen(s) - 1] == '"')	if (!findEntryByPath(config, defaultKernelPath,
2561	s[strlen(s) - 1] = '\0';	prefix, &firstKernelEntryIndex)) {
2562	/* make sure the root doesn't have a trailing " */	/* don't change default if can't find match */
2563	printf("root=%s\n", s);	config->defaultImage = NO_DEFAULT_ENTRY;
2564	}	return;
2565		}
2566
2567	line = getLineByType(LT_INITRD, entry->lines);	config->defaultImage = firstKernelEntryIndex;
2568
2569	if (line && line->numElements >= 2) {	/* this is where we start looking for decrement later */
2570	printf("initrd=%s", prefix);	currentLookupIndex = config->defaultImage;
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
	}
2571
2572	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	if (isAddingBootEntry && !config->isModified &&
2573	FILE * in;	(newBootEntryIndex < config->defaultImage)) {
2574	char buf[1024];	/* increment because new entry added before default */
2575	char * chptr;	config->defaultImage++;
2576	char * start;	}
2577	char * param;	} else {
2578		/* use pre-existing default entry */
2579	in = fopen("/etc/conf.d/grub", "r");	currentLookupIndex = config->defaultImage;
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
2580
2581	fclose(in);	if (isAddingBootEntry
2582		&& (newBootEntryIndex <= config->defaultImage)) {
2583		config->defaultImage++;
2584
2585	return 0;	if (config->isModified) {
2586	}	currentLookupIndex++;
2587		}
2588		}
2589		}
2590
2591	void dumpSysconfigGrub(void) {	/* sanity check - is this entry index valid? */
2592	char * boot;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
	}
2593
2594	int displayInfo(struct grubConfig * config, char * kernel,	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2595	const char * prefix) {	/* entry is to be skipped or is invalid */
2596	int i = 0;	if (isAddingBootEntry) {
2597	struct singleEntry * entry;	config->defaultImage = newBootEntryIndex;
2598	struct singleLine * line;	return;
2599		}
2600	entry = findEntryByPath(config, kernel, prefix, &i);	newDefault =
2601	if (!entry) {	findTemplate(config, prefix, &config->defaultImage, 1,
2602	fprintf(stderr, _("grubby: kernel not found\n"));	flags);
2603	return 1;	if (!newDefault) {
2604	}	config->defaultImage = NO_DEFAULT_ENTRY;
2605		}
2606
2607	/* this is a horrible hack to support /etc/conf.d/grub; there must	return;
	be a better way */
	if (config->cfi == &grubConfigType) {
	dumpSysconfigGrub();
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
2608	}	}
2609
2610	line = getLineByType(LT_LBA, config->theLines);	currentLookupIndex--;
	if (line) printf("lba\n");
	}
2611
2612	displayEntry(entry, prefix, i);	/* decrement index by the total number of entries deleted */
2613
2614	i++;	for (indexToVerify = currentLookupIndex;
2615	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	displayEntry(entry, prefix, i);
	i++;
	}
2616
2617	return 0;	bootEntry = findEntryByIndex(config, indexToVerify);
	}
	struct singleLine * addLineTmpl(struct singleEntry * entry,
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi)
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[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)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
	if (!entry->lines) {
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
	}
2618
2619	/* val may be NULL */	if (bootEntry && bootEntry->skip) {
2620	struct singleLine *  addLine(struct singleEntry * entry,	config->defaultImage--;
2621	struct configFileInfo * cfi,	}
	enum lineType_e type, char * defaultIndent,
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
2622	}	}
	}
	/* The last non-empty line gives us the indention to us and the line
	to insert after. Note that comments are considered empty lines, which
	may not be ideal? If there are no lines or we are looking at the
	first line, we use defaultIndent (the first line is normally indented
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
	struct singleLine *menuEntry;
	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
	return addLineTmpl(entry, &tmpl, prev, val, cfi);
2623	}	}
2624
2625	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2626	struct singleLine * prev;	{
2627	int i;	struct singleEntry *entry, *entry2;
2628		int j;
2629
2630	for (i = 0; i < line->numElements; i++) {	if (config->fallbackImage == -1)
2631	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2632
2633	if (line == entry->lines) {	entry = findEntryByIndex(config, config->fallbackImage);
2634	entry->lines = line->next;	if (!entry || entry->skip) {
2635	} else {	config->fallbackImage = -1;
2636	prev = entry->lines;	return;
2637	while (prev->next != line) prev = prev->next;	}
	prev->next = line->next;
	}
2638
2639	free(line);	if (hasNew)
2640	}	config->fallbackImage++;
2641
2642	static int isquote(char q)	/* count the number of entries erased before this one */
2643	{	for (j = 0; j < config->fallbackImage; j++) {
2644	if (q == '\'' || q == '\"')	entry2 = findEntryByIndex(config, j);
2645	return 1;	if (entry2->skip)
2646	return 0;	config->fallbackImage--;
2647		}
2648	}	}
2649
2650	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2651	{	{
2652	struct singleLine newLine = {	struct singleLine *line;
2653	.indent = tmplLine->indent,	char *root = NULL;
2654	.type = tmplLine->type,	int i;
2655	.next = tmplLine->next,	int j;
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {
	/* move the end-of-line forward */
	line->elements[insertHere].indent =
	line->elements[insertHere-1].indent;
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
2656
2657	line->numElements++;	printf("index=%d\n", index);
2658
2659	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	line =
2660	line->elements[0].item,	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2661	line->elements[insertHere].item,	entry->lines);
2662	line->elements[insertHere].indent,	if (!line) {
2663	insertHere);	printf("non linux entry\n");
2664	}	return;
2665		}
2666
2667	static void removeElement(struct singleLine * line, int removeHere) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2668	int i;	printf("kernel=%s\n", line->elements[1].item);
2669		else
2670		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2671
2672	/* sanity check */	if (line->numElements >= 3) {
2673	if (removeHere >= line->numElements) return;	printf("args=\"");
2674		i = 2;
2675		while (i < line->numElements) {
2676		if (!strncmp(line->elements[i].item, "root=", 5)) {
2677		root = line->elements[i].item + 5;
2678		} else {
2679		printf("%s%s", line->elements[i].item,
2680		line->elements[i].indent);
2681		}
2682
2683	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	i++;
2684	removeHere, line->elements[removeHere].item);	}
2685		printf("\"\n");
2686		} else {
2687		line = getLineByType(LT_KERNELARGS, entry->lines);
2688		if (line) {
2689		char *s;
2690
2691		printf("args=\"");
2692		i = 1;
2693		while (i < line->numElements) {
2694		if (!strncmp
2695		(line->elements[i].item, "root=", 5)) {
2696		root = line->elements[i].item + 5;
2697		} else {
2698		s = line->elements[i].item;
2699
2700	free(line->elements[removeHere].item);	printf("%s%s", s,
2701		line->elements[i].indent);
2702		}
2703
2704	if (removeHere > 1) {	i++;
2705	/* previous argument gets this argument's post-indentation */	}
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2706
2707	/* now collapse the array, but don't bother to realloc smaller */	s = line->elements[i - 1].indent;
2708	for (i = removeHere; i < line->numElements - 1; i++)	printf("\"\n");
2709	line->elements[i] = line->elements[i + 1];	}
	line->numElements--;
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements;
	int doreplace;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
2710	}	}
	}
2711
2712	if (!removeArgs) {	if (!root) {
2713	oldArgs = malloc(sizeof(*oldArgs));	line = getLineByType(LT_ROOT, entry->lines);
2714	*oldArgs = NULL;	if (line && line->numElements >= 2)
2715	} else {	root = line->elements[1].item;
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2716	}	}
	}
2717
2718		if (root) {
2719		char *s = alloca(strlen(root) + 1);
2720
2721	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	strcpy(s, root);
2722	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	if (s[strlen(s) - 1] == '"')
2723		s[strlen(s) - 1] = '\0';
2724	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	/* make sure the root doesn't have a trailing " */
2725	&& !multibootArgs);	printf("root=%s\n", s);
2726		}
2727
2728	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	line =
2729		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2730		entry->lines);
2731
2732	if (multibootArgs && !entry->multiboot)	if (line && line->numElements >= 2) {
2733	continue;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734		printf("initrd=");
2735		else
2736		printf("initrd=%s", prefix);
2737
2738	/* Determine where to put the args.  If this config supports	for (i = 1; i < line->numElements; i++)
2739	* LT_KERNELARGS, use that.  Otherwise use	printf("%s%s", line->elements[i].item,
2740	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	line->elements[i].indent);
2741	*/	printf("\n");
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
2742	}	}
2743
2744	/* handle the elilo case which does:	line = getLineByType(LT_TITLE, entry->lines);
2745	*   append="hypervisor args -- kernel args"	if (line) {
2746	*/	printf("title=%s\n", line->elements[1].item);
2747	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	} else {
2748	/* this is a multiboot entry, make sure there's	char *title;
2749	* -- on the args line	line = getLineByType(LT_MENUENTRY, entry->lines);
2750	*/	if (line) {
2751	for (i = firstElement; i < line->numElements; i++) {	title = grub2ExtractTitle(line);
2752	if (!strcmp(line->elements[i].item, "--"))	if (title)
2753	break;	printf("title=%s\n", title);
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
	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);
2754	}	}
2755	}	}
2756
2757	else {	for (j = 0, line = entry->lines; line; line = line->next) {
2758	/* insert/append */	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2759	insertElement(line, *arg, i, cfg->cfi);	if (!strncmp
2760	usedElements = realloc(usedElements, line->numElements *	(prefix, line->elements[1].item, strlen(prefix)))
2761	sizeof(*usedElements));	printf("mbmodule%d=", j);
2762	memmove(&usedElements[i + 1], &usedElements[i],	else
2763	line->numElements - i - 1);	printf("mbmodule%d=%s", j, prefix);
2764	usedElements[i] = 1;
2765		for (i = 1; i < line->numElements; i++)
2766	/* if we updated a root= here even though there is a	printf("%s%s", line->elements[i].item,
2767	LT_ROOT available we need to remove the LT_ROOT entry	line->elements[i].indent);
2768	(this will happen if we switch from a device to a label) */	printf("\n");
2769	if (useRoot && !strncmp(*arg, "root=", 5)) {	j++;
2770	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);
2771	}	}
2772	}	}
2773
2774	free(newArgs);	int isSuseSystem(void)
2775	free(oldArgs);	{
2776		const char *path;
2777		const static char default_path[] = "/etc/SuSE-release";
2778
2779	return 0;	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2780	}	path = default_path;
2781
2782	int updateImage(struct grubConfig * cfg, const char * image,	if (!access(path, R_OK))
	const char * prefix, const char * addArgs,
	const char * removeArgs,
	const char * addMBArgs, const char * removeMBArgs) {
	int rc = 0;
	if (!image) return rc;
	/* update the main args first... */
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
2783	return 1;	return 1;
2784		return 0;
2785		}
2786
2787		int isSuseGrubConf(const char *path)
2788		{
2789		FILE *grubConf;
2790		char *line = NULL;
2791		size_t len = 0, res = 0;
2792
2793		grubConf = fopen(path, "r");
2794		if (!grubConf) {
2795		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2796		path);
2797		return 0;
2798	}	}
2799
2800	break;	while ((res = getline(&line, &len, grubConf)) != -1) {
2801	}	if (!strncmp(line, "setup", 5)) {
2802		fclose(grubConf);
2803		free(line);
2804		return 1;
2805		}
2806		}
2807
2808	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2809		path);
2810
2811		fclose(grubConf);
2812		free(line);
2813		return 0;
2814	}	}
2815
2816	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2817	int fd;	{
2818	unsigned char bootSect[512];	FILE *grubConf;
2819	int offset;	char *line = NULL;
2820		size_t res = 0, len = 0;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2821
2822	if (read(fd, bootSect, 512) != 512) {	if (!path)
2823	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	return 1;
2824	device, strerror(errno));	if (!lbaPtr)
2825	return 1;	return 1;
	}
	close(fd);
2826
2827	/* first three bytes should match, a jmp short should be in there */	grubConf = fopen(path, "r");
2828	if (memcmp(boot, bootSect, 3))	if (!grubConf)
2829	return 0;	return 1;
2830
2831	if (boot[1] == JMP_SHORT_OPCODE) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2832	offset = boot[2] + 2;	if (line[res - 1] == '\n')
2833	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	line[res - 1] = '\0';
2834	offset = (boot[3] << 8) + boot[2] + 2;	else if (len > res)
2835	} else if (boot[0] == JMP_SHORT_OPCODE) {	line[res] = '\0';
2836	offset = boot[1] + 2;	else {
2837	/*	line = realloc(line, res + 1);
2838	* it looks like grub, when copying stage1 into the mbr, patches stage1	line[res] = '\0';
2839	* 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;
	}
2840
2841	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (!strncmp(line, "setup", 5)) {
2842	return 0;	if (strstr(line, "--force-lba")) {
2843		*lbaPtr = 1;
2844		} else {
2845		*lbaPtr = 0;
2846		}
2847		dbgPrintf("lba: %i\n", *lbaPtr);
2848		break;
2849		}
2850		}
2851
2852	return 2;	free(line);
2853		fclose(grubConf);
2854		return 0;
2855	}	}
2856
2857	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2858	int fd;	{
2859	char buf[65536];	FILE *grubConf;
2860	char * end;	char *line = NULL;
2861	char * chptr;	size_t res = 0, len = 0;
2862	char * chptr2;	char *lastParamPtr = NULL;
2863	int rc;	char *secLastParamPtr = NULL;
2864		char installDeviceNumber = '\0';
2865	/* it's on raid; we need to parse /proc/mdstat and check all of the	char *bounds = NULL;
	*raw* devices listed in there */
	if (!strncmp(mdDev, "/dev/", 5))
	mdDev += 5;
2866
2867	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!path)
2868	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	return 1;
2869	strerror(errno));	if (!devicePtr)
2870	return 2;	return 1;
	}
2871
2872	rc = read(fd, buf, sizeof(buf) - 1);	grubConf = fopen(path, "r");
2873	if (rc < 0 || rc == (sizeof(buf) - 1)) {	if (!grubConf)
2874	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	return 1;
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2875
2876	chptr = buf;	while ((res = getline(&line, &len, grubConf)) != -1) {
2877	while (*chptr) {	if (strncmp(line, "setup", 5))
2878	end = strchr(chptr, '\n');	continue;
2879	if (!end) break;
2880	*end = '\0';	if (line[res - 1] == '\n')
2881		line[res - 1] = '\0';
2882		else if (len > res)
2883		line[res] = '\0';
2884		else {
2885		line = realloc(line, res + 1);
2886		line[res] = '\0';
2887		}
2888
2889	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	lastParamPtr = bounds = line + res;
	chptr[strlen(mdDev)] == ' ') {
2890
2891	/* found the device */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2892	while (*chptr && *chptr != ':') chptr++;	while (!isspace(*lastParamPtr))
2893	chptr++;	lastParamPtr--;
2894	while (*chptr && isspace(*chptr)) chptr++;	lastParamPtr++;
2895
2896	/* skip the "active" bit */	secLastParamPtr = lastParamPtr - 2;
2897	while (*chptr && !isspace(*chptr)) chptr++;	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2898	while (*chptr && isspace(*chptr)) chptr++;
2899		if (lastParamPtr + 3 > bounds) {
2900	/* skip the raid level */	dbgPrintf("lastParamPtr going over boundary");
2901	while (*chptr && !isspace(*chptr)) chptr++;	fclose(grubConf);
2902	while (*chptr && isspace(*chptr)) chptr++;	free(line);
2903		return 1;
2904	/* everything else is partition stuff */	}
2905	while (*chptr) {	if (!strncmp(lastParamPtr, "(hd", 3))
2906	chptr2 = chptr;	lastParamPtr += 3;
2907	while (*chptr2 && *chptr2 != '[') chptr2++;	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2908	if (!*chptr2) break;
2909		/*
2910	/* yank off the numbers at the end */	* Second last parameter will decide wether last parameter is
2911	chptr2--;	* an IMAGE_DEVICE or INSTALL_DEVICE
2912	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	*/
2913	chptr2++;	while (!isspace(*secLastParamPtr))
2914	*chptr2 = '\0';	secLastParamPtr--;
2915		secLastParamPtr++;
2916	/* Better, now we need the /dev/ back. We're done with
2917	* everything before this point, so we can just put	if (secLastParamPtr + 3 > bounds) {
2918	* the /dev/ part there. There will always be room. */	dbgPrintf("secLastParamPtr going over boundary");
2919	memcpy(chptr - 5, "/dev/", 5);	fclose(grubConf);
2920	rc = checkDeviceBootloader(chptr - 5, boot);	free(line);
2921	if (rc != 2) {	return 1;
2922	return rc;	}
2923	}	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2924		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2925	chptr = chptr2 + 1;	secLastParamPtr += 3;
2926	/* skip the [11] bit */	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2927	while (*chptr && !isspace(*chptr)) chptr++;	installDeviceNumber = *secLastParamPtr;
2928	/* and move to the next one */	} else {
2929	while (*chptr && isspace(*chptr)) chptr++;	installDeviceNumber = *lastParamPtr;
2930	}	}
2931
2932	/*  we're good to go */	*devicePtr = malloc(6);
2933	return 2;	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2934		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2935		fclose(grubConf);
2936		free(line);
2937		return 0;
2938	}	}
2939
2940	chptr = end + 1;	free(line);
2941	}	fclose(grubConf);
2942		return 1;
	fprintf(stderr,
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
2943	}	}
2944
2945	int checkForLilo(struct grubConfig * config) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2946	int fd;	{
2947	unsigned char boot[512];	FILE *deviceMap;
2948	struct singleLine * line;	char *line = NULL;
2949		size_t res = 0, len = 0;
2950	for (line = config->theLines; line; line = line->next)	char *devicePtr;
2951	if (line->type == LT_BOOT) break;	char *bounds = NULL;
2952		const char *path;
2953	if (!line) {	const static char default_path[] = "/boot/grub/device.map";
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
2954
2955	if (line->numElements != 2) return 1;	if (!device)
2956		return 1;
2957		if (!bootPtr)
2958		return 1;
2959
2960	fd = open("/boot/boot.b", O_RDONLY);	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2961	if (fd < 0) {	path = default_path;
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	"/boot/boot.b", strerror(errno));
	return 1;
	}
2962
2963	if (read(fd, boot, 512) != 512) {	dbgPrintf("opening grub device.map file from: %s\n", path);
2964	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	deviceMap = fopen(path, "r");
2965	"/boot/boot.b", strerror(errno));	if (!deviceMap)
2966	return 1;	return 1;
	}
	close(fd);
2967
2968	if (!strncmp("/dev/md", line->elements[1].item, 7))	while ((res = getline(&line, &len, deviceMap)) != -1) {
2969	return checkLiloOnRaid(line->elements[1].item, boot);	if (!strncmp(line, "#", 1))
2970		continue;
2971
2972		if (line[res - 1] == '\n')
2973		line[res - 1] = '\0';
2974		else if (len > res)
2975		line[res] = '\0';
2976		else {
2977		line = realloc(line, res + 1);
2978		line[res] = '\0';
2979		}
2980
2981	return checkDeviceBootloader(line->elements[1].item, boot);	devicePtr = line;
2982	}	bounds = line + res;
2983
2984	int checkForGrub2(struct grubConfig * config) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2985	if (!access("/etc/grub.d/", R_OK))	devicePtr++;
2986	return 2;	dbgPrintf("device: %s\n", devicePtr);
2987
2988		if (!strncmp(devicePtr, device, strlen(device))) {
2989		devicePtr += strlen(device);
2990		while (isspace(*devicePtr)
2991		&& ((devicePtr + 1) <= bounds))
2992		devicePtr++;
2993
2994		*bootPtr = strdup(devicePtr);
2995		break;
2996		}
2997		}
2998
2999	return 1;	free(line);
3000		fclose(deviceMap);
3001		return 0;
3002	}	}
3003
3004	int checkForGrub(struct grubConfig * config) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3005	int fd;	{
3006	unsigned char bootSect[512];	char *grubDevice;
	char * boot;
3007
3008	if (parseSysconfigGrub(NULL, &boot))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3009	return 0;	dbgPrintf("error looking for grub installation device\n");
3010		else
3011		dbgPrintf("grubby installation device: %s\n", grubDevice);
3012
3013	/* assume grub is not installed -- not an error condition */	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3014	if (!boot)	dbgPrintf("error looking for grub boot device\n");
3015	return 0;	else
3016		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3017
3018	fd = open("/boot/grub/stage1", O_RDONLY);	free(grubDevice);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3019	return 0;	return 0;
3020		}
3021
3022	if (read(fd, bootSect, 512) != 512) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3023	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3024	"/boot/grub/stage1", strerror(errno));	/*
3025	close(fd);	* This SuSE grub configuration file at this location is not your
3026	return 1;	* average grub configuration file, but instead the grub commands
3027	}	* used to setup grub on that system.
3028	close(fd);	*/
3029		const char *path;
3030		const static char default_path[] = "/etc/grub.conf";
3031
3032	return checkDeviceBootloader(boot, bootSect);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3033	}	path = default_path;
3034
3035	int checkForExtLinux(struct grubConfig * config) {	if (!isSuseGrubConf(path))
3036	int fd;	return 1;
	unsigned char bootSect[512];
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
3037
3038	printf("entered: checkForExtLinux()\n");	if (lbaPtr) {
3039		*lbaPtr = 0;
3040		if (suseGrubConfGetLba(path, lbaPtr))
3041		return 1;
3042		}
3043
3044	if (parseSysconfigGrub(NULL, &boot))	if (bootPtr) {
3045	return 0;	*bootPtr = NULL;
3046		suseGrubConfGetBoot(path, bootPtr);
3047		}
3048
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3049	return 0;	return 0;
3050		}
3051
3052	fd = open(executable, O_RDONLY);	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3053	if (fd < 0)	{
3054	/* this doesn't exist if grub hasn't been installed */	FILE *in;
3055	return 0;	char buf[1024];
3056		char *chptr;
3057		char *start;
3058		char *param;
3059
3060	if (read(fd, bootSect, 512) != 512) {	in = fopen("/etc/sysconfig/grub", "r");
3061	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (!in)
3062	executable, strerror(errno));	return 1;
	return 1;
	}
	close(fd);
3063
3064	return checkDeviceBootloader(boot, bootSect);	if (lbaPtr)
3065	}	*lbaPtr = 0;
3066		if (bootPtr)
3067		*bootPtr = NULL;
3068
3069		while (fgets(buf, sizeof(buf), in)) {
3070		start = buf;
3071		while (isspace(*start))
3072		start++;
3073		if (*start == '#')
3074		continue;
3075
3076		chptr = strchr(start, '=');
3077		if (!chptr)
3078		continue;
3079		chptr--;
3080		while (*chptr && isspace(*chptr))
3081		chptr--;
3082		chptr++;
3083		*chptr = '\0';
3084
3085		param = chptr + 1;
3086		while (*param && isspace(*param))
3087		param++;
3088		if (*param == '=') {
3089		param++;
3090		while (*param && isspace(*param))
3091		param++;
3092		}
3093
3094		chptr = param;
3095		while (*chptr && !isspace(*chptr))
3096		chptr++;
3097		*chptr = '\0';
3098
3099		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3100		*lbaPtr = 1;
3101		else if (!strcmp(start, "boot") && bootPtr)
3102		*bootPtr = strdup(param);
3103		}
3104
3105	static char * getRootSpecifier(char * str) {	fclose(in);
	char * idx, * rootspec = NULL;
3106
3107	if (*str == '(') {	return 0;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
3108	}	}
3109
3110	static char * getInitrdVal(struct grubConfig * config,	void dumpSysconfigGrub(void)
3111	const char * prefix, struct singleLine *tmplLine,	{
3112	const char * newKernelInitrd,	char *boot = NULL;
3113	char ** extraInitrds, int extraInitrdCount)	int lba;
	{
	char *initrdVal, *end;
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3114
3115	initrdVal = end = malloc(totalSize);	if (isSuseSystem()) {
3116		if (parseSuseGrubConf(&lba, &boot)) {
3117		free(boot);
3118		return;
3119		}
3120		} else {
3121		if (parseSysconfigGrub(&lba, &boot)) {
3122		free(boot);
3123		return;
3124		}
3125		}
3126
3127	end = stpcpy (end, newKernelInitrd + prefixLen);	if (lba)
3128		printf("lba\n");
3129		if (boot) {
3130		printf("boot=%s\n", boot);
3131		free(boot);
3132		}
3133		}
3134
3135	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3136	for (i = 0; i < extraInitrdCount; i++) {	{
3137	const char *extraInitrd;	int i = 0;
3138	int j;	struct singleEntry *entry;
3139		struct singleLine *line;
3140
3141		entry = findEntryByPath(config, kernel, prefix, &i);
3142		if (!entry) {
3143		fprintf(stderr, _("grubby: kernel not found\n"));
3144		return 1;
3145		}
3146
3147	extraInitrd = extraInitrds[i] + prefixLen;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3148	/* Don't add entries that are already there */	be a better way */
3149	if (tmplLine != NULL) {	if (config->cfi == &grubConfigType) {
3150	for (j = 2; j < tmplLine->numElements; j++)	dumpSysconfigGrub();
3151	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	} else {
3152	break;	line = getLineByType(LT_BOOT, config->theLines);
3153		if (line && line->numElements >= 1) {
3154		printf("boot=%s\n", line->elements[1].item);
3155		}
3156
3157	if (j != tmplLine->numElements)	line = getLineByType(LT_LBA, config->theLines);
3158	continue;	if (line)
3159		printf("lba\n");
3160	}	}
3161
3162	*end++ = separatorChar;	displayEntry(entry, prefix, i);
3163	end = stpcpy(end, extraInitrd);
3164	}	i++;
3165		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3166		displayEntry(entry, prefix, i);
3167		i++;
3168		}
3169
3170	return initrdVal;	return 0;
3171	}	}
3172
3173	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3174	const char * prefix,	struct singleLine *tmplLine,
3175	char * newKernelPath, char * newKernelTitle,	struct singleLine *prevLine,
3176	char * newKernelArgs, char * newKernelInitrd,	const char *val, struct configFileInfo *cfi)
3177	char ** extraInitrds, int extraInitrdCount,	{
3178	char * newMBKernel, char * newMBKernelArgs) {	struct singleLine *newLine = lineDup(tmplLine);
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3179
3180	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (isEfi && cfi == &grub2ConfigType) {
3181	while (findEntryByPath(config, buf, NULL, NULL)) {	enum lineType_e old = newLine->type;
3182	sprintf(numBuf, "%d", i++);	newLine->type = preferredLineType(newLine->type, cfi);
3183	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	if (old != newLine->type)
3184		newLine->elements[0].item =
3185		getKeyByType(newLine->type, cfi);
3186	}	}
3187
3188	newKernelTitle = buf + 6;	if (val) {
3189	}	/* override the inherited value with our own.
3190		* This is a little weak because it only applies to elements[1]
3191		*/
3192		if (newLine->numElements > 1)
3193		removeElement(newLine, 1);
3194		insertElement(newLine, val, 1, cfi);
3195
3196		/* but try to keep the rootspec from the template... sigh */
3197		if (tmplLine->
3198		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3199		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3200		LT_INITRD_16)) {
3201		char *rootspec =
3202		getRootSpecifier(tmplLine->elements[1].item);
3203		if (rootspec != NULL) {
3204		free(newLine->elements[1].item);
3205		newLine->elements[1].item =
3206		sdupprintf("%s%s", rootspec, val);
3207		}
3208		}
3209		}
3210
3211	new = malloc(sizeof(*new));	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3212	new->skip = 0;	newLine->elements[0].item : "");
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3213
3214	if (template) {	if (!entry->lines) {
3215	for (masterLine = template->lines;	/* first one on the list */
3216	masterLine && (tmplLine = lineDup(masterLine));	entry->lines = newLine;
3217	lineFree(tmplLine), masterLine = masterLine->next)	} else if (prevLine) {
3218	{	/* add after prevLine */
3219	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	newLine->next = prevLine->next;
3220		prevLine->next = newLine;
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, 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 (tmplLine->type == LT_INITRD &&
	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 && masterLine->next->type == LT_KERNEL) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
3221	}	}
3222
3223	} else {	return newLine;
3224	/* don't have a template, so start the entry with the	}
	* appropriate starting line
	*/
	switch (config->cfi->entryStart) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3225
3226	case LT_HYPER:	/* val may be NULL */
3227	newLine = addLine(new, config->cfi, LT_HYPER,	struct singleLine *addLine(struct singleEntry *entry,
3228	config->primaryIndent,	struct configFileInfo *cfi,
3229	newMBKernel + strlen(prefix));	enum lineType_e type, char *defaultIndent,
3230	needs &= ~NEED_MB;	const char *val)
3231	break;	{
3232		struct singleLine *line, *prev;
3233		struct keywordTypes *kw;
3234		struct singleLine tmpl;
3235
3236	case LT_MENUENTRY: {	/* NB: This function shouldn't allocate items on the heap, rather on
3237	char *nkt = malloc(strlen(newKernelTitle)+3);	* the stack since it calls addLineTmpl which will make copies.
3238	strcpy(nkt, "'");	*/
3239	strcat(nkt, newKernelTitle);	if (type == LT_TITLE && cfi->titleBracketed) {
3240	strcat(nkt, "'");	/* we're doing a bracketed title (zipl) */
3241	newLine = addLine(new, config->cfi, LT_MENUENTRY,	tmpl.type = type;
3242	config->primaryIndent, nkt);	tmpl.numElements = 1;
3243	free(nkt);	tmpl.elements = alloca(sizeof(*tmpl.elements));
3244	needs &= ~NEED_TITLE;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3245	needs |= NEED_END;	sprintf(tmpl.elements[0].item, "[%s]", val);
3246	break;	tmpl.elements[0].indent = "";
3247	}	val = NULL;
3248	case LT_TITLE:	} else if (type == LT_MENUENTRY) {
3249	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	char *lineend = "--class gnu-linux --class gnu --class os {";
3250	char * templabel;	if (!val) {
3251	int x = 0, y = 0;	fprintf(stderr,
3252		"Line type LT_MENUENTRY requires a value\n");
3253	templabel = strdup(newKernelTitle);	abort();
	while( templabel[x]){
	if( templabel[x] == ' ' ){
	y = x;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
	}
	}
	x++;
	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
3254	}	}
3255	needs &= ~NEED_TITLE;	kw = getKeywordByType(type, cfi);
3256	break;	if (!kw) {
3257		fprintf(stderr,
3258		"Looking up keyword for unknown type %d\n",
3259		type);
3260		abort();
3261		}
3262		tmpl.indent = "";
3263		tmpl.type = type;
3264		tmpl.numElements = 3;
3265		tmpl.elements =
3266		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3267		tmpl.elements[0].item = kw->key;
3268		tmpl.elements[0].indent = alloca(2);
3269		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3270		tmpl.elements[1].item = (char *)val;
3271		tmpl.elements[1].indent = alloca(2);
3272		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3273		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3274		strcpy(tmpl.elements[2].item, lineend);
3275		tmpl.elements[2].indent = "";
3276		} else {
3277		kw = getKeywordByType(type, cfi);
3278		if (!kw) {
3279		fprintf(stderr,
3280		"Looking up keyword for unknown type %d\n",
3281		type);
3282		abort();
3283		}
3284		tmpl.type = type;
3285		tmpl.numElements = val ? 2 : 1;
3286		tmpl.elements =
3287		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3288		tmpl.elements[0].item = kw->key;
3289		tmpl.elements[0].indent = alloca(2);
3290		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3291		if (val) {
3292		tmpl.elements[1].item = (char *)val;
3293		tmpl.elements[1].indent = "";
3294		}
3295		}
3296
3297	default:	/* The last non-empty line gives us the indention to us and the line
3298	abort();	* to insert after. Note that comments are considered empty lines,
3299		* which may not be ideal? If there are no lines or we are looking at
3300		* the first line, we use defaultIndent (the first line is normally
3301		* indented differently from the rest) */
3302		for (line = entry->lines, prev = NULL; line; line = line->next) {
3303		if (line->numElements)
3304		prev = line;
3305		/* fall back on the last line if prev isn't otherwise set */
3306		if (!line->next && !prev)
3307		prev = line;
3308		}
3309
3310		struct singleLine *menuEntry;
3311		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3312		if (tmpl.type == LT_ENTRY_END) {
3313		if (menuEntry)
3314		tmpl.indent = menuEntry->indent;
3315		else
3316		tmpl.indent = defaultIndent ? : "";
3317		} else if (tmpl.type != LT_MENUENTRY) {
3318		if (menuEntry)
3319		tmpl.indent = "\t";
3320		else if (prev == entry->lines)
3321		tmpl.indent = defaultIndent ? : "";
3322		else
3323		tmpl.indent = prev->indent;
3324	}	}
	}
3325
3326	/* add the remainder of the lines, i.e. those that either	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3327	* weren't present in the template, or in the case of no template,	}
	* all the lines following the entryStart.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
3328
3329	if (needs) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3330	printf(_("grubby: needs=%d, aborting\n"), needs);	{
3331	abort();	struct singleLine *prev;
3332	}	int i;
3333
3334	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	for (i = 0; i < line->numElements; i++) {
3335	newMBKernelArgs, NULL)) return 1;	free(line->elements[i].item);
3336		free(line->elements[i].indent);
3337		}
3338		free(line->elements);
3339		free(line->indent);
3340
3341	return 0;	if (line == entry->lines) {
3342		entry->lines = line->next;
3343		} else {
3344		prev = entry->lines;
3345		while (prev->next != line)
3346		prev = prev->next;
3347		prev->next = line->next;
3348		}
3349
3350		free(line);
3351	}	}
3352
3353	static void traceback(int signum)	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3354	{	{
3355	void *array[40];	struct singleLine newLine = {
3356	size_t size;	.indent = tmplLine->indent,
3357		.type = tmplLine->type,
3358		.next = tmplLine->next,
3359		};
3360		int firstQuotedItem = -1;
3361		int quoteLen = 0;
3362		int j;
3363		int element = 0;
3364		char *c;
3365
3366	signal(SIGSEGV, SIG_DFL);	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3367	memset(array, '\0', sizeof (array));	strcpy(c, tmplLine->elements[0].item);
3368	size = backtrace(array, 40);	insertElement(&newLine, c, element++, cfi);
3369		free(c);
3370	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	c = NULL;
3371	(unsigned long)size);
3372	backtrace_symbols_fd(array, size, STDERR_FILENO);	for (j = 1; j < tmplLine->numElements; j++) {
3373	exit(1);	if (firstQuotedItem == -1) {
3374	}	quoteLen += strlen(tmplLine->elements[j].item);
3375
3376	int main(int argc, const char ** argv) {	if (isquote(tmplLine->elements[j].item[0])) {
3377	poptContext optCon;	firstQuotedItem = j;
3378	const char * grubConfig = NULL;	quoteLen +=
3379	char * outputFile = NULL;	strlen(tmplLine->elements[j].indent);
3380	int arg = 0;	} else {
3381	int flags = 0;	c = malloc(quoteLen + 1);
3382	int badImageOkay = 0;	strcpy(c, tmplLine->elements[j].item);
3383	int configureGrub2 = 0;	insertElement(&newLine, c, element++, cfi);
3384	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	free(c);
3385	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	quoteLen = 0;
3386	int configureExtLinux = 0;	}
3387	int bootloaderProbe = 0;	} else {
3388	int extraInitrdCount = 0;	int itemlen = strlen(tmplLine->elements[j].item);
3389	char * updateKernelPath = NULL;	quoteLen += itemlen;
3390	char * newKernelPath = NULL;	quoteLen += strlen(tmplLine->elements[j].indent);
3391	char * removeKernelPath = NULL;
3392	char * newKernelArgs = NULL;	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3393	char * newKernelInitrd = NULL;	c = malloc(quoteLen + 1);
3394	char * newKernelTitle = NULL;	c[0] = '\0';
3395	char * newKernelVersion = NULL;	for (int i = firstQuotedItem; i < j + 1; i++) {
3396	char * newMBKernel = NULL;	strcat(c, tmplLine->elements[i].item);
3397	char * newMBKernelArgs = NULL;	strcat(c, tmplLine->elements[i].indent);
3398	char * removeMBKernelArgs = NULL;	}
3399	char * removeMBKernel = NULL;	insertElement(&newLine, c, element++, cfi);
3400	char * bootPrefix = NULL;	free(c);
3401	char * defaultKernel = NULL;
3402	char * removeArgs = NULL;	firstQuotedItem = -1;
3403	char * kernelInfo = NULL;	quoteLen = 0;
3404	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	}
3405	const char * chptr = NULL;	}
3406	struct configFileInfo * cfi = NULL;	}
3407	struct grubConfig * config;	while (tmplLine->numElements)
3408	struct singleEntry * template = NULL;	removeElement(tmplLine, 0);
3409	int copyDefault = 0, makeDefault = 0;	if (tmplLine->elements)
3410	int displayDefault = 0;	free(tmplLine->elements);
3411	int displayDefaultIndex = 0;
3412	int displayDefaultTitle = 0;	tmplLine->numElements = newLine.numElements;
3413	struct poptOption options[] = {	tmplLine->elements = newLine.elements;
3414	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	}
3415	_("add an entry for the specified kernel"), _("kernel-path") },
3416	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	static void insertElement(struct singleLine *line,
3417	_("add an entry for the specified multiboot kernel"), NULL },	const char *item, int insertHere,
3418	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	struct configFileInfo *cfi)
3419	_("default arguments for the new kernel or new arguments for "	{
3420	"kernel being updated"), _("args") },	struct keywordTypes *kw;
3421	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	char indent[2] = "";
3422	_("default arguments for the new multiboot kernel or "
3423	"new arguments for multiboot kernel being updated"), NULL },	/* sanity check */
3424	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	if (insertHere > line->numElements) {
3425	_("don't sanity check images in boot entries (for testing only)"),	dbgPrintf
3426	NULL },	("insertElement() adjusting insertHere from %d to %d\n",
3427	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	insertHere, line->numElements);
3428	_("filestystem which contains /boot directory (for testing only)"),	insertHere = line->numElements;
3429	_("bootfs") },	}
3430	#if defined(__i386__) || defined(__x86_64__)
3431	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	line->elements = realloc(line->elements, (line->numElements + 1) *
3432	_("check if lilo is installed on lilo.conf boot sector") },	sizeof(*line->elements));
3433	#endif	memmove(&line->elements[insertHere + 1],
3434	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	&line->elements[insertHere],
3435	_("path to grub config file to update (\"-\" for stdin)"),	(line->numElements - insertHere) * sizeof(*line->elements));
3436	_("path") },	line->elements[insertHere].item = strdup(item);
3437	{ "copy-default", 0, 0, &copyDefault, 0,
3438	_("use the default boot entry as a template for the new entry "	kw = getKeywordByType(line->type, cfi);
3439	"being added; if the default is not a linux image, or if "
3440	"the kernel referenced by the default image does not exist, "	if (line->numElements == 0) {
3441	"the first linux entry whose kernel does exist is used as the "	indent[0] = '\0';
3442	"template"), NULL },	} else if (insertHere == 0) {
3443	{ "debug", 0, 0, &debug, 0,	indent[0] = kw->nextChar;
3444	_("print debugging information for failures") },	} else if (kw->separatorChar != '\0') {
3445	{ "default-kernel", 0, 0, &displayDefault, 0,	indent[0] = kw->separatorChar;
3446	_("display the path of the default kernel") },	} else {
3447	{ "default-index", 0, 0, &displayDefaultIndex, 0,	indent[0] = ' ';
3448	_("display the index of the default kernel") },	}
3449	{ "default-title", 0, 0, &displayDefaultTitle, 0,
3450	_("display the title of the default kernel") },	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3451	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	/* move the end-of-line forward */
3452	_("configure elilo bootloader") },	line->elements[insertHere].indent =
3453	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	line->elements[insertHere - 1].indent;
3454	_("configure extlinux bootloader (from syslinux)") },	line->elements[insertHere - 1].indent = strdup(indent);
3455	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	} else {
3456	_("configure grub bootloader") },	line->elements[insertHere].indent = strdup(indent);
3457	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	}
3458	_("configure grub2 bootloader") },
3459	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	line->numElements++;
3460	_("display boot information for specified kernel"),
3461	_("kernel-path") },	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3462	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	line->elements[0].item,
3463	_("initrd image for the new kernel"), _("initrd-path") },	line->elements[insertHere].item,
3464	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	line->elements[insertHere].indent, insertHere);
3465	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	}
3466	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
3467	_("configure lilo bootloader") },	static void removeElement(struct singleLine *line, int removeHere)
3468	{ "make-default", 0, 0, &makeDefault, 0,	{
3469	_("make the newly added entry the default boot entry"), NULL },	int i;
3470	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
3471	_("path to output updated config file (\"-\" for stdout)"),	/* sanity check */
3472	_("path") },	if (removeHere >= line->numElements)
3473	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	return;
3474	_("remove kernel arguments"), NULL },
3475	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3476	_("remove multiboot kernel arguments"), NULL },	removeHere, line->elements[removeHere].item);
3477	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
3478	_("remove all entries for the specified kernel"),	free(line->elements[removeHere].item);
3479	_("kernel-path") },
3480	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	if (removeHere > 1) {
3481	_("remove all entries for the specified multiboot kernel"), NULL },	/* previous argument gets this argument's post-indentation */
3482	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	free(line->elements[removeHere - 1].indent);
3483	_("make the first entry referencing the specified kernel "	line->elements[removeHere - 1].indent =
3484	"the default"), _("kernel-path") },	line->elements[removeHere].indent;
3485	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	} else {
3486	_("configure silo bootloader") },	free(line->elements[removeHere].indent);
3487	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	}
3488	_("title to use for the new kernel entry"), _("entry-title") },
3489	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	/* now collapse the array, but don't bother to realloc smaller */
3490	_("updated information for the specified kernel"),	for (i = removeHere; i < line->numElements - 1; i++)
3491	_("kernel-path") },	line->elements[i] = line->elements[i + 1];
3492	{ "version", 'v', 0, NULL, 'v',
3493	_("print the version of this program and exit"), NULL },	line->numElements--;
3494	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	}
3495	_("configure yaboot bootloader") },
3496	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	int argMatch(const char *one, const char *two)
3497	_("configure zipl bootloader") },	{
3498	POPT_AUTOHELP	char *first, *second;
3499	{ 0, 0, 0, 0, 0 }	char *chptr;
3500	};
3501		first = strcpy(alloca(strlen(one) + 1), one);
3502	useextlinuxmenu=0;	second = strcpy(alloca(strlen(two) + 1), two);
3503
3504	signal(SIGSEGV, traceback);	chptr = strchr(first, '=');
3505		if (chptr)
3506	optCon = poptGetContext("grubby", argc, argv, options, 0);	*chptr = '\0';
3507	poptReadDefaultConfig(optCon, 1);
3508		chptr = strchr(second, '=');
3509	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (chptr)
3510	switch (arg) {	*chptr = '\0';
3511	case 'v':
3512	printf("grubby version %s\n", VERSION);	return strcmp(first, second);
3513	exit(0);	}
3514	break;
3515	case 'i':	int updateActualImage(struct grubConfig *cfg, const char *image,
3516	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	const char *prefix, const char *addArgs,
3517	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	const char *removeArgs, int multibootArgs)
3518	} else {	{
3519	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	struct singleEntry *entry;
3520		struct singleLine *line, *rootLine;
3521		int index = 0;
3522		int i, k;
3523		const char **newArgs, **oldArgs;
3524		const char **arg;
3525		int useKernelArgs, useRoot;
3526		int firstElement;
3527		int *usedElements;
3528		int doreplace;
3529
3530		if (!image)
3531		return 0;
3532
3533		if (!addArgs) {
3534		newArgs = malloc(sizeof(*newArgs));
3535		*newArgs = NULL;
3536		} else {
3537		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3538		fprintf(stderr,
3539		_("grubby: error separating arguments '%s'\n"),
3540		addArgs);
3541		return 1;
3542		}
3543		}
3544
3545		if (!removeArgs) {
3546		oldArgs = malloc(sizeof(*oldArgs));
3547		*oldArgs = NULL;
3548		} else {
3549		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3550		fprintf(stderr,
3551		_("grubby: error separating arguments '%s'\n"),
3552		removeArgs);
3553		free(newArgs);
3554		return 1;
3555		}
3556		}
3557
3558		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3559		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3560
3561		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3562		&& !multibootArgs);
3563
3564		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3565
3566		if (multibootArgs && !entry->multiboot)
3567		continue;
3568
3569		/* Determine where to put the args.  If this config supports
3570		* LT_KERNELARGS, use that.  Otherwise use
3571		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3572		*/
3573		if (useKernelArgs) {
3574		line = getLineByType(LT_KERNELARGS, entry->lines);
3575		if (!line) {
3576		/* no LT_KERNELARGS, need to add it */
3577		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3578		cfg->secondaryIndent, NULL);
3579		}
3580		firstElement = 1;
3581
3582		} else if (multibootArgs) {
3583		line = getLineByType(LT_HYPER, entry->lines);
3584		if (!line) {
3585		/* a multiboot entry without LT_HYPER? */
3586		continue;
3587		}
3588		firstElement = 2;
3589
3590		} else {
3591		line =
3592		getLineByType(LT_KERNEL | LT_MBMODULE |
3593		LT_KERNEL_EFI | LT_KERNEL_16,
3594		entry->lines);
3595		if (!line) {
3596		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3597		continue;
3598		}
3599		firstElement = 2;
3600		}
3601
3602		/* handle the elilo case which does:
3603		*   append="hypervisor args -- kernel args"
3604		*/
3605		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3606		/* this is a multiboot entry, make sure there's
3607		* -- on the args line
3608		*/
3609		for (i = firstElement; i < line->numElements; i++) {
3610		if (!strcmp(line->elements[i].item, "--"))
3611		break;
3612		}
3613		if (i == line->numElements) {
3614		/* assume all existing args are kernel args,
3615		* prepend -- to make it official
3616		*/
3617		insertElement(line, "--", firstElement,
3618		cfg->cfi);
3619		i = firstElement;
3620		}
3621		if (!multibootArgs) {
3622		/* kernel args start after the -- */
3623		firstElement = i + 1;
3624		}
3625		} else if (cfg->cfi->mbConcatArgs) {
3626		/* this is a non-multiboot entry, remove hyper args */
3627		for (i = firstElement; i < line->numElements; i++) {
3628		if (!strcmp(line->elements[i].item, "--"))
3629		break;
3630		}
3631		if (i < line->numElements) {
3632		/* remove args up to -- */
3633		while (strcmp
3634		(line->elements[firstElement].item,
3635		"--"))
3636		removeElement(line, firstElement);
3637		/* remove -- */
3638		removeElement(line, firstElement);
3639		}
3640		}
3641
3642		usedElements = calloc(line->numElements, sizeof(*usedElements));
3643
3644		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3645
3646		doreplace = 1;
3647		for (i = firstElement; i < line->numElements; i++) {
3648		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3649		!strcmp(line->elements[i].item, "--")) {
3650		/* reached the end of hyper args, insert here */
3651		doreplace = 0;
3652		break;
3653		}
3654		if (usedElements[i])
3655		continue;
3656		if (!argMatch(line->elements[i].item, *arg)) {
3657		usedElements[i] = 1;
3658		break;
3659		}
3660		}
3661
3662		if (i < line->numElements && doreplace) {
3663		/* direct replacement */
3664		free(line->elements[i].item);
3665		line->elements[i].item = strdup(*arg);
3666
3667		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3668		/* root= replacement */
3669		rootLine = getLineByType(LT_ROOT, entry->lines);
3670		if (rootLine) {
3671		free(rootLine->elements[1].item);
3672		rootLine->elements[1].item =
3673		strdup(*arg + 5);
3674		} else {
3675		rootLine =
3676		addLine(entry, cfg->cfi, LT_ROOT,
3677		cfg->secondaryIndent,
3678		*arg + 5);
3679		}
3680		}
3681
3682		else {
3683		/* insert/append */
3684		insertElement(line, *arg, i, cfg->cfi);
3685		usedElements =
3686		realloc(usedElements,
3687		line->numElements *
3688		sizeof(*usedElements));
3689		memmove(&usedElements[i + 1], &usedElements[i],
3690		line->numElements - i - 1);
3691		usedElements[i] = 1;
3692
3693		/* if we updated a root= here even though
3694		* there is a LT_ROOT available we need to
3695		* remove the LT_ROOT entry (this will happen
3696		* if we switch from a device to a label) */
3697		if (useRoot && !strncmp(*arg, "root=", 5)) {
3698		rootLine =
3699		getLineByType(LT_ROOT,
3700		entry->lines);
3701		if (rootLine)
3702		removeLine(entry, rootLine);
3703		}
3704		}
3705		}
3706
3707		free(usedElements);
3708
3709		for (arg = oldArgs; *arg; arg++) {
3710		for (i = firstElement; i < line->numElements; i++) {
3711		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3712		!strcmp(line->elements[i].item, "--"))
3713		/* reached the end of hyper args, stop here */
3714		break;
3715		if (!argMatch(line->elements[i].item, *arg)) {
3716		removeElement(line, i);
3717		break;
3718		}
3719		}
3720		/* handle removing LT_ROOT line too */
3721		if (useRoot && !strncmp(*arg, "root=", 5)) {
3722		rootLine = getLineByType(LT_ROOT, entry->lines);
3723		if (rootLine)
3724		removeLine(entry, rootLine);
3725		}
3726		}
3727
3728		if (line->numElements == 1) {
3729		/* don't need the line at all (note it has to be a
3730		LT_KERNELARGS for this to happen */
3731		removeLine(entry, line);
3732		}
3733		}
3734
3735		free(newArgs);
3736		free(oldArgs);
3737
3738		return 0;
3739		}
3740
3741		int updateImage(struct grubConfig *cfg, const char *image,
3742		const char *prefix, const char *addArgs,
3743		const char *removeArgs,
3744		const char *addMBArgs, const char *removeMBArgs)
3745		{
3746		int rc = 0;
3747
3748		if (!image)
3749		return rc;
3750
3751		/* update the main args first... */
3752		if (addArgs || removeArgs)
3753		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3754		0);
3755		if (rc)
3756		return rc;
3757
3758		/* and now any multiboot args */
3759		if (addMBArgs || removeMBArgs)
3760		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3761		removeMBArgs, 1);
3762		return rc;
3763		}
3764
3765		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3766		const char *image, const char *prefix, const char *initrd,
3767		const char *title)
3768		{
3769		struct singleEntry *entry;
3770		struct singleLine *line, *kernelLine, *endLine = NULL;
3771		int index = 0;
3772
3773		if (!image)
3774		return 0;
3775
3776		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3777		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3778		if (!kernelLine)
3779		continue;
3780
3781		/* if title is supplied, the entry's title must match it. */
3782		if (title) {
3783		char *linetitle;
3784
3785		line =
3786		getLineByType(LT_TITLE | LT_MENUENTRY,
3787		entry->lines);
3788		if (!line)
3789		continue;
3790
3791		linetitle = extractTitle(cfg, line);
3792		if (!linetitle)
3793		continue;
3794		if (strcmp(title, linetitle)) {
3795		free(linetitle);
3796		continue;
3797		}
3798		free(linetitle);
3799		}
3800
3801		if (prefix) {
3802		int prefixLen = strlen(prefix);
3803		if (!strncmp(initrd, prefix, prefixLen))
3804		initrd += prefixLen;
3805		}
3806		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3807		if (endLine)
3808		removeLine(entry, endLine);
3809		line =
3810		addLine(entry, cfg->cfi,
3811		preferredLineType(LT_MBMODULE, cfg->cfi),
3812		kernelLine->indent, initrd);
3813		if (!line)
3814		return 1;
3815		if (endLine) {
3816		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3817		if (!line)
3818		return 1;
3819		}
3820
3821		break;
3822		}
3823
3824		return 0;
3825		}
3826
3827		int updateInitrd(struct grubConfig *cfg, const char *image,
3828		const char *prefix, const char *initrd, const char *title)
3829		{
3830		struct singleEntry *entry;
3831		struct singleLine *line, *kernelLine, *endLine = NULL;
3832		int index = 0;
3833
3834		if (!image)
3835		return 0;
3836
3837		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3838		kernelLine =
3839		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3840		entry->lines);
3841		if (!kernelLine)
3842		continue;
3843
3844		/* if title is supplied, the entry's title must match it. */
3845		if (title) {
3846		char *linetitle;
3847
3848		line =
3849		getLineByType(LT_TITLE | LT_MENUENTRY,
3850		entry->lines);
3851		if (!line)
3852		continue;
3853
3854		linetitle = extractTitle(cfg, line);
3855		if (!linetitle)
3856		continue;
3857		if (strcmp(title, linetitle)) {
3858		free(linetitle);
3859		continue;
3860		}
3861		free(linetitle);
3862		}
3863
3864		line =
3865		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3866		entry->lines);
3867		if (line)
3868		removeLine(entry, line);
3869		if (prefix) {
3870		int prefixLen = strlen(prefix);
3871		if (!strncmp(initrd, prefix, prefixLen))
3872		initrd += prefixLen;
3873		}
3874		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3875		if (endLine)
3876		removeLine(entry, endLine);
3877		enum lineType_e lt;
3878		switch (kernelLine->type) {
3879		case LT_KERNEL:
3880		lt = LT_INITRD;
3881		break;
3882		case LT_KERNEL_EFI:
3883		lt = LT_INITRD_EFI;
3884		break;
3885		case LT_KERNEL_16:
3886		lt = LT_INITRD_16;
3887		break;
3888		default:
3889		lt = preferredLineType(LT_INITRD, cfg->cfi);
3890		}
3891		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3892		if (!line)
3893		return 1;
3894		if (endLine) {
3895		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3896		if (!line)
3897		return 1;
3898		}
3899
3900		break;
3901		}
3902
3903		return 0;
3904		}
3905
3906		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3907		{
3908		int fd;
3909		unsigned char bootSect[512];
3910		int offset;
3911
3912		fd = open(device, O_RDONLY);
3913		if (fd < 0) {
3914		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3915		device, strerror(errno));
3916	return 1;	return 1;
	}
	break;
3917	}	}
	}
3918
3919	if (arg < -1) {	if (read(fd, bootSect, 512) != 512) {
3920	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3921	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	device, strerror(errno));
3922	poptStrerror(arg));	return 1;
3923	return 1;	}
3924	}	close(fd);
3925
3926		/* first three bytes should match, a jmp short should be in there */
3927		if (memcmp(boot, bootSect, 3))
3928		return 0;
3929
3930		if (boot[1] == JMP_SHORT_OPCODE) {
3931		offset = boot[2] + 2;
3932		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3933		offset = (boot[3] << 8) + boot[2] + 2;
3934		} else if (boot[0] == JMP_SHORT_OPCODE) {
3935		offset = boot[1] + 2;
3936		/*
3937		* it looks like grub, when copying stage1 into the mbr,
3938		* patches stage1 right after the JMP location, replacing
3939		* other instructions such as JMPs for NOOPs. So, relax the
3940		* check a little bit by skipping those different bytes.
3941		*/
3942		if ((bootSect[offset + 1] == NOOP_OPCODE)
3943		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3944		offset = offset + 3;
3945		}
3946		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3947		offset = (boot[2] << 8) + boot[1] + 2;
3948		} else {
3949		return 0;
3950		}
3951
3952		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3953		return 0;
3954
3955		return 2;
3956		}
3957
3958		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3959		{
3960		int fd;
3961		char buf[65536];
3962		char *end;
3963		char *chptr;
3964		char *chptr2;
3965		int rc;
3966
3967		/* it's on raid; we need to parse /proc/mdstat and check all of the
3968		*raw* devices listed in there */
3969
3970		if (!strncmp(mdDev, "/dev/", 5))
3971		mdDev += 5;
3972
3973		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3974		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3975		strerror(errno));
3976		return 2;
3977		}
3978
3979		rc = read(fd, buf, sizeof(buf) - 1);
3980		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3981		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3982		strerror(errno));
3983		close(fd);
3984		return 2;
3985		}
3986		close(fd);
3987		buf[rc] = '\0';
3988
3989		chptr = buf;
3990		while (*chptr) {
3991		end = strchr(chptr, '\n');
3992		if (!end)
3993		break;
3994		*end = '\0';
3995
3996		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3997		chptr[strlen(mdDev)] == ' ') {
3998
3999		/* found the device */
4000		while (*chptr && *chptr != ':')
4001		chptr++;
4002		chptr++;
4003		while (*chptr && isspace(*chptr))
4004		chptr++;
4005
4006		/* skip the "active" bit */
4007		while (*chptr && !isspace(*chptr))
4008		chptr++;
4009		while (*chptr && isspace(*chptr))
4010		chptr++;
4011
4012		/* skip the raid level */
4013		while (*chptr && !isspace(*chptr))
4014		chptr++;
4015		while (*chptr && isspace(*chptr))
4016		chptr++;
4017
4018		/* everything else is partition stuff */
4019		while (*chptr) {
4020		chptr2 = chptr;
4021		while (*chptr2 && *chptr2 != '[')
4022		chptr2++;
4023		if (!*chptr2)
4024		break;
4025
4026		/* yank off the numbers at the end */
4027		chptr2--;
4028		while (isdigit(*chptr2) && chptr2 > chptr)
4029		chptr2--;
4030		chptr2++;
4031		*chptr2 = '\0';
4032
4033		/* Better, now we need the /dev/ back. We're
4034		* done with everything before this point, so
4035		* we can just put the /dev/ part there.
4036		* There will always be room. */
4037		memcpy(chptr - 5, "/dev/", 5);
4038		rc = checkDeviceBootloader(chptr - 5, boot);
4039		if (rc != 2) {
4040		return rc;
4041		}
4042
4043		chptr = chptr2 + 1;
4044		/* skip the [11] bit */
4045		while (*chptr && !isspace(*chptr))
4046		chptr++;
4047		/* and move to the next one */
4048		while (*chptr && isspace(*chptr))
4049		chptr++;
4050		}
4051
4052		/*  we're good to go */
4053		return 2;
4054		}
4055
4056		chptr = end + 1;
4057		}
4058
4059		fprintf(stderr,
4060		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4061		mdDev);
4062		return 0;
4063		}
4064
4065		int checkForLilo(struct grubConfig *config)
4066		{
4067		int fd;
4068		unsigned char boot[512];
4069		struct singleLine *line;
4070
4071		for (line = config->theLines; line; line = line->next)
4072		if (line->type == LT_BOOT)
4073		break;
4074
4075		if (!line) {
4076		fprintf(stderr,
4077		_
4078		("grubby: no boot line found in lilo configuration\n"));
4079		return 1;
4080		}
4081
4082		if (line->numElements != 2)
4083		return 1;
4084
4085		fd = open("/boot/boot.b", O_RDONLY);
4086		if (fd < 0) {
4087		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4088		"/boot/boot.b", strerror(errno));
4089		return 1;
4090		}
4091
4092		if (read(fd, boot, 512) != 512) {
4093		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4094		"/boot/boot.b", strerror(errno));
4095		return 1;
4096		}
4097		close(fd);
4098
4099		if (!strncmp("/dev/md", line->elements[1].item, 7))
4100		return checkLiloOnRaid(line->elements[1].item, boot);
4101
4102		return checkDeviceBootloader(line->elements[1].item, boot);
4103		}
4104
4105		int checkForGrub2(struct grubConfig *config)
4106		{
4107		if (!access("/etc/grub.d/", R_OK))
4108		return 2;
4109
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4110	return 1;	return 1;
4111	}	}
4112
4113		int checkForGrub(struct grubConfig *config)
4114		{
4115		int fd;
4116		unsigned char bootSect[512];
4117		char *boot;
4118		int onSuse = isSuseSystem();
4119
4120		if (onSuse) {
4121		if (parseSuseGrubConf(NULL, &boot))
4122		return 0;
4123		} else {
4124		if (parseSysconfigGrub(NULL, &boot))
4125		return 0;
4126		}
4127
4128		/* assume grub is not installed -- not an error condition */
4129		if (!boot)
4130		return 0;
4131
4132		fd = open("/boot/grub/stage1", O_RDONLY);
4133		if (fd < 0)
4134		/* this doesn't exist if grub hasn't been installed */
4135		return 0;
4136
4137		if (read(fd, bootSect, 512) != 512) {
4138		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4139		"/boot/grub/stage1", strerror(errno));
4140		close(fd);
4141		return 1;
4142		}
4143		close(fd);
4144
4145		/* The more elaborate checks do not work on SuSE. The checks done
4146		* seem to be reasonble (at least for now), so just return success
4147		*/
4148		if (onSuse)
4149		return 2;
4150
4151		return checkDeviceBootloader(boot, bootSect);
4152		}
4153
4154		int checkForExtLinux(struct grubConfig *config)
4155		{
4156		int fd;
4157		unsigned char bootSect[512];
4158		char *boot;
4159		char executable[] = "/boot/extlinux/extlinux";
4160
4161		printf("entered: checkForExtLinux()\n");
4162
4163		if (parseSysconfigGrub(NULL, &boot))
4164		return 0;
4165
4166		/* assume grub is not installed -- not an error condition */
4167		if (!boot)
4168		return 0;
4169
4170		fd = open(executable, O_RDONLY);
4171		if (fd < 0)
4172		/* this doesn't exist if grub hasn't been installed */
4173		return 0;
4174
4175		if (read(fd, bootSect, 512) != 512) {
4176		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4177		executable, strerror(errno));
4178		return 1;
4179		}
4180		close(fd);
4181
4182		return checkDeviceBootloader(boot, bootSect);
4183		}
4184
4185		int checkForYaboot(struct grubConfig *config)
4186		{
4187		/*
4188		* This is a simplistic check that we consider good enough for own puporses
4189		*
4190		* If we were to properly check if yaboot is *installed* we'd need to:
4191		* 1) get the system boot device (LT_BOOT)
4192		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4193		*    the content on the boot device
4194		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4195		* 4) check again if binary and boot device contents match
4196		*/
4197		if (!access("/etc/yaboot.conf", R_OK))
4198		return 2;
4199
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4200	return 1;	return 1;
4201	} else if (bootloaderProbe && grubConfig) {	}
4202	fprintf(stderr,
4203	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4204		{
4205		if (!access("/etc/elilo.conf", R_OK))
4206		return 2;
4207
4208	return 1;	return 1;
4209	} else if (configureGrub2) {	}
4210	cfi = &grub2ConfigType;
4211	} else if (configureLilo) {	static char *getRootSpecifier(char *str)
4212	cfi = &liloConfigType;	{
4213	} else if (configureGrub) {	char *idx, *rootspec = NULL;
4214	cfi = &grubConfigType;
4215	} else if (configureELilo) {	if (*str == '(') {
4216	cfi = &eliloConfigType;	idx = rootspec = strdup(str);
4217	} else if (configureYaboot) {	while (*idx && (*idx != ')') && (!isspace(*idx)))
4218	cfi = &yabootConfigType;	idx++;
4219	} else if (configureSilo) {	*(++idx) = '\0';
4220	cfi = &siloConfigType;	}
4221	} else if (configureZipl) {	return rootspec;
4222	cfi = &ziplConfigType;	}
4223	} else if (configureExtLinux) {
4224	cfi = &extlinuxConfigType;	static char *getInitrdVal(struct grubConfig *config,
4225	useextlinuxmenu=1;	const char *prefix, struct singleLine *tmplLine,
4226	}	const char *newKernelInitrd,
4227		const char **extraInitrds, int extraInitrdCount)
4228		{
4229		char *initrdVal, *end;
4230		int i;
4231		size_t totalSize;
4232		size_t prefixLen;
4233		char separatorChar;
4234
4235		prefixLen = strlen(prefix);
4236		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4237
4238		for (i = 0; i < extraInitrdCount; i++) {
4239		totalSize += sizeof(separatorChar);
4240		totalSize += strlen(extraInitrds[i]) - prefixLen;
4241		}
4242
4243		initrdVal = end = malloc(totalSize);
4244
4245		end = stpcpy(end, newKernelInitrd + prefixLen);
4246
4247		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4248		for (i = 0; i < extraInitrdCount; i++) {
4249		const char *extraInitrd;
4250		int j;
4251
4252		extraInitrd = extraInitrds[i] + prefixLen;
4253		/* Don't add entries that are already there */
4254		if (tmplLine != NULL) {
4255		for (j = 2; j < tmplLine->numElements; j++)
4256		if (strcmp
4257		(extraInitrd,
4258		tmplLine->elements[j].item) == 0)
4259		break;
4260
4261		if (j != tmplLine->numElements)
4262		continue;
4263		}
4264
4265		*end++ = separatorChar;
4266		end = stpcpy(end, extraInitrd);
4267		}
4268
4269		return initrdVal;
4270		}
4271
4272		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4273		const char *prefix,
4274		const char *newKernelPath, const char *newKernelTitle,
4275		const char *newKernelArgs, const char *newKernelInitrd,
4276		const char **extraInitrds, int extraInitrdCount,
4277		const char *newMBKernel, const char *newMBKernelArgs,
4278		const char *newDevTreePath, int newIndex)
4279		{
4280		struct singleEntry *new, *entry, *prev = NULL;
4281		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4282		int needs;
4283		char *indexs;
4284		char *chptr;
4285		int rc;
4286
4287		if (!newKernelPath)
4288		return 0;
4289
4290	if (!cfi) {	rc = asprintf(&indexs, "%d", newIndex);
4291	#ifdef __ia64__	if (rc < 0)
4292	cfi = &eliloConfigType;	return 1;
4293	#elif __powerpc__
4294	cfi = &yabootConfigType;	/* if the newKernelTitle is too long silently munge it into something
4295	#elif __sparc__	* we can live with. truncating is first check, then we'll just mess with
4296	cfi = &siloConfigType;	* it until it looks better */
4297	#elif __s390__	if (config->cfi->maxTitleLength &&
4298	cfi = &ziplConfigType;	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4299	#elif __s390x__	char *buf = alloca(config->cfi->maxTitleLength + 7);
4300	cfi = &ziplConfigtype;	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4301	#else	int i = 1;
4302	if (grub2FindConfig(&grub2ConfigType))
4303	cfi = &grub2ConfigType;	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4304		newKernelTitle);
4305		while (findEntryByPath(config, buf, NULL, NULL)) {
4306		sprintf(numBuf, "%d", i++);
4307		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4308		}
4309
4310		newKernelTitle = buf + 6;
4311		}
4312
4313		new = malloc(sizeof(*new));
4314		new->skip = 0;
4315		new->multiboot = 0;
4316		new->lines = NULL;
4317		entry = config->entries;
4318		for (unsigned int i = 0; i < newIndex; i++) {
4319		if (!entry)
4320		break;
4321		prev = entry;
4322		entry = entry->next;
4323		}
4324		new->next = entry;
4325
4326		if (prev)
4327		prev->next = new;
4328	else	else
4329	cfi = &grubConfigType;	config->entries = new;
	#endif
	}
4330
4331	if (!grubConfig) {	/* copy/update from the template */
4332	if (cfi->findConfig)	needs = NEED_KERNEL | NEED_TITLE;
4333	grubConfig = cfi->findConfig(cfi);	if (newKernelInitrd)
4334	if (!grubConfig)	needs |= NEED_INITRD;
4335	grubConfig = cfi->defaultConfig;	if (newMBKernel) {
4336	}	needs |= NEED_MB;
4337		new->multiboot = 1;
4338		}
4339		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4340		needs |= NEED_DEVTREE;
4341
4342		if (template) {
4343		for (masterLine = template->lines;
4344		masterLine && (tmplLine = lineDup(masterLine));
4345		lineFree(tmplLine), masterLine = masterLine->next) {
4346		dbgPrintf("addNewKernel processing %d\n",
4347		tmplLine->type);
4348
4349		/* skip comments */
4350		chptr = tmplLine->indent;
4351		while (*chptr && isspace(*chptr))
4352		chptr++;
4353		if (*chptr == '#')
4354		continue;
4355
4356		if (iskernel(tmplLine->type)
4357		&& tmplLine->numElements >= 2) {
4358		if (!template->multiboot && (needs & NEED_MB)) {
4359		/* it's not a multiboot template and
4360		* this is the kernel line.  Try to
4361		* be intelligent about inserting the
4362		* hypervisor at the same time.
4363		*/
4364		if (config->cfi->mbHyperFirst) {
4365		/* insert the hypervisor first */
4366		newLine =
4367		addLine(new, config->cfi,
4368		LT_HYPER,
4369		tmplLine->indent,
4370		newMBKernel +
4371		strlen(prefix));
4372		/* set up for adding the
4373		* kernel line */
4374		free(tmplLine->indent);
4375		tmplLine->indent =
4376		strdup(config->
4377		secondaryIndent);
4378		needs &= ~NEED_MB;
4379		}
4380		if (needs & NEED_KERNEL) {
4381		/* use addLineTmpl to
4382		* preserve line elements,
4383		* otherwise we could just
4384		* call addLine.
4385		* Unfortunately this means
4386		* making some changes to the
4387		* template such as the
4388		* indent change above and
4389		* the type change below.
4390		*/
4391		struct keywordTypes *mbm_kw =
4392		getKeywordByType
4393		(LT_MBMODULE, config->cfi);
4394		if (mbm_kw) {
4395		tmplLine->type =
4396		LT_MBMODULE;
4397		free(tmplLine->
4398		elements[0].item);
4399		tmplLine->elements[0].
4400		item =
4401		strdup(mbm_kw->key);
4402		}
4403		newLine =
4404		addLineTmpl(new, tmplLine,
4405		newLine,
4406		newKernelPath +
4407		strlen(prefix),
4408		config->cfi);
4409		needs &= ~NEED_KERNEL;
4410		}
4411		if (needs & NEED_MB) { /* !mbHyperFirst */
4412		newLine =
4413		addLine(new, config->cfi,
4414		LT_HYPER,
4415		config->
4416		secondaryIndent,
4417		newMBKernel +
4418		strlen(prefix));
4419		needs &= ~NEED_MB;
4420		}
4421		} else if (needs & NEED_KERNEL) {
4422		newLine =
4423		addLineTmpl(new, tmplLine, newLine,
4424		newKernelPath +
4425		strlen(prefix),
4426		config->cfi);
4427		needs &= ~NEED_KERNEL;
4428		}
4429
4430		} else if (tmplLine->type == LT_HYPER &&
4431		tmplLine->numElements >= 2) {
4432		if (needs & NEED_MB) {
4433		newLine =
4434		addLineTmpl(new, tmplLine, newLine,
4435		newMBKernel +
4436		strlen(prefix),
4437		config->cfi);
4438		needs &= ~NEED_MB;
4439		}
4440
4441		} else if (tmplLine->type == LT_MBMODULE &&
4442		tmplLine->numElements >= 2) {
4443		if (new->multiboot) {
4444		if (needs & NEED_KERNEL) {
4445		newLine =
4446		addLineTmpl(new, tmplLine,
4447		newLine,
4448		newKernelPath +
4449		strlen(prefix),
4450		config->cfi);
4451		needs &= ~NEED_KERNEL;
4452		} else if (config->cfi->mbInitRdIsModule
4453		&& (needs & NEED_INITRD)) {
4454		char *initrdVal;
4455		initrdVal =
4456		getInitrdVal(config, prefix,
4457		tmplLine,
4458		newKernelInitrd,
4459		extraInitrds,
4460		extraInitrdCount);
4461		newLine =
4462		addLineTmpl(new, tmplLine,
4463		newLine,
4464		initrdVal,
4465		config->cfi);
4466		free(initrdVal);
4467		needs &= ~NEED_INITRD;
4468		}
4469		} else if (needs & NEED_KERNEL) {
4470		/* template is multi but new is not,
4471		* insert the kernel in the first
4472		* module slot
4473		*/
4474		tmplLine->type =
4475		preferredLineType(LT_KERNEL,
4476		config->cfi);
4477		free(tmplLine->elements[0].item);
4478		tmplLine->elements[0].item =
4479		strdup(getKeywordByType
4480		(tmplLine->type,
4481		config->cfi)->key);
4482		newLine =
4483		addLineTmpl(new, tmplLine, newLine,
4484		newKernelPath +
4485		strlen(prefix),
4486		config->cfi);
4487		needs &= ~NEED_KERNEL;
4488		} else if (needs & NEED_INITRD) {
4489		char *initrdVal;
4490		/* template is multi but new is not,
4491		* insert the initrd in the second
4492		* module slot
4493		*/
4494		tmplLine->type =
4495		preferredLineType(LT_INITRD,
4496		config->cfi);
4497		free(tmplLine->elements[0].item);
4498		tmplLine->elements[0].item =
4499		strdup(getKeywordByType
4500		(tmplLine->type,
4501		config->cfi)->key);
4502		initrdVal =
4503		getInitrdVal(config, prefix,
4504		tmplLine,
4505		newKernelInitrd,
4506		extraInitrds,
4507		extraInitrdCount);
4508		newLine =
4509		addLineTmpl(new, tmplLine, newLine,
4510		initrdVal, config->cfi);
4511		free(initrdVal);
4512		needs &= ~NEED_INITRD;
4513		}
4514
4515		} else if (isinitrd(tmplLine->type)
4516		&& tmplLine->numElements >= 2) {
4517		if (needs & NEED_INITRD && new->multiboot
4518		&& !template->multiboot
4519		&& config->cfi->mbInitRdIsModule) {
4520		/* make sure we don't insert the
4521		* module initrd before the module
4522		* kernel... if we don't do it here,
4523		* it will be inserted following the
4524		* template.
4525		*/
4526		if (!needs & NEED_KERNEL) {
4527		char *initrdVal;
4528
4529		initrdVal =
4530		getInitrdVal(config, prefix,
4531		tmplLine,
4532		newKernelInitrd,
4533		extraInitrds,
4534		extraInitrdCount);
4535		newLine =
4536		addLine(new, config->cfi,
4537		LT_MBMODULE,
4538		config->
4539		secondaryIndent,
4540		initrdVal);
4541		free(initrdVal);
4542		needs &= ~NEED_INITRD;
4543		}
4544		} else if (needs & NEED_INITRD) {
4545		char *initrdVal;
4546		initrdVal =
4547		getInitrdVal(config, prefix,
4548		tmplLine,
4549		newKernelInitrd,
4550		extraInitrds,
4551		extraInitrdCount);
4552		newLine =
4553		addLineTmpl(new, tmplLine, newLine,
4554		initrdVal, config->cfi);
4555		free(initrdVal);
4556		needs &= ~NEED_INITRD;
4557		}
4558
4559		} else if (tmplLine->type == LT_MENUENTRY &&
4560		(needs & NEED_TITLE)) {
4561		requote(tmplLine, config->cfi);
4562		char *nkt = malloc(strlen(newKernelTitle) + 3);
4563		strcpy(nkt, "'");
4564		strcat(nkt, newKernelTitle);
4565		strcat(nkt, "'");
4566		newLine =
4567		addLineTmpl(new, tmplLine, newLine, nkt,
4568		config->cfi);
4569		free(nkt);
4570		needs &= ~NEED_TITLE;
4571		} else if (tmplLine->type == LT_TITLE &&
4572		(needs & NEED_TITLE)) {
4573		if (tmplLine->numElements >= 2) {
4574		newLine =
4575		addLineTmpl(new, tmplLine, newLine,
4576		newKernelTitle,
4577		config->cfi);
4578		needs &= ~NEED_TITLE;
4579		} else if (tmplLine->numElements == 1 &&
4580		config->cfi->titleBracketed) {
4581		/* addLineTmpl doesn't handle
4582		* titleBracketed */
4583		newLine =
4584		addLine(new, config->cfi, LT_TITLE,
4585		tmplLine->indent,
4586		newKernelTitle);
4587		needs &= ~NEED_TITLE;
4588		}
4589		} else if (tmplLine->type == LT_ECHO) {
4590		requote(tmplLine, config->cfi);
4591		static const char *prefix = "'Loading ";
4592		if (tmplLine->numElements > 1 &&
4593		strstr(tmplLine->elements[1].item, prefix)
4594		&& masterLine->next
4595		&& iskernel(masterLine->next->type)) {
4596		char *newTitle =
4597		malloc(strlen(prefix) +
4598		strlen(newKernelTitle) + 2);
4599
4600		strcpy(newTitle, prefix);
4601		strcat(newTitle, newKernelTitle);
4602		strcat(newTitle, "'");
4603		newLine =
4604		addLine(new, config->cfi, LT_ECHO,
4605		tmplLine->indent, newTitle);
4606		free(newTitle);
4607		} else {
4608		/* pass through other lines from the
4609		* template */
4610		newLine =
4611		addLineTmpl(new, tmplLine, newLine,
4612		NULL, config->cfi);
4613		}
4614		} else if (tmplLine->type == LT_DEVTREE &&
4615		tmplLine->numElements == 2
4616		&& newDevTreePath) {
4617		newLine =
4618		addLineTmpl(new, tmplLine, newLine,
4619		newDevTreePath + strlen(prefix),
4620		config->cfi);
4621		needs &= ~NEED_DEVTREE;
4622		} else if (tmplLine->type == LT_ENTRY_END
4623		&& needs & NEED_DEVTREE) {
4624		const char *ndtp = newDevTreePath;
4625		if (!strncmp
4626		(newDevTreePath, prefix, strlen(prefix)))
4627		ndtp += strlen(prefix);
4628		newLine = addLine(new, config->cfi, LT_DEVTREE,
4629		config->secondaryIndent,
4630		ndtp);
4631		needs &= ~NEED_DEVTREE;
4632		newLine =
4633		addLineTmpl(new, tmplLine, newLine, NULL,
4634		config->cfi);
4635		} else {
4636		/* pass through other lines from the template */
4637		newLine =
4638		addLineTmpl(new, tmplLine, newLine, NULL,
4639		config->cfi);
4640		}
4641		}
4642
4643		} else {
4644		/* don't have a template, so start the entry with the
4645		* appropriate starting line
4646		*/
4647		switch (config->cfi->entryStart) {
4648		case LT_KERNEL:
4649		case LT_KERNEL_EFI:
4650		case LT_KERNEL_16:
4651		if (new->multiboot && config->cfi->mbHyperFirst) {
4652		/* fall through to LT_HYPER */
4653		} else {
4654		newLine = addLine(new, config->cfi,
4655		preferredLineType(LT_KERNEL,
4656		config->
4657		cfi),
4658		config->primaryIndent,
4659		newKernelPath +
4660		strlen(prefix));
4661		needs &= ~NEED_KERNEL;
4662		break;
4663		}
4664
4665		case LT_HYPER:
4666		newLine = addLine(new, config->cfi, LT_HYPER,
4667		config->primaryIndent,
4668		newMBKernel + strlen(prefix));
4669		needs &= ~NEED_MB;
4670		break;
4671
4672		case LT_MENUENTRY:{
4673		char *nkt = malloc(strlen(newKernelTitle) + 3);
4674		strcpy(nkt, "'");
4675		strcat(nkt, newKernelTitle);
4676		strcat(nkt, "'");
4677		newLine =
4678		addLine(new, config->cfi, LT_MENUENTRY,
4679		config->primaryIndent, nkt);
4680		free(nkt);
4681		needs &= ~NEED_TITLE;
4682		needs |= NEED_END;
4683		break;
4684		}
4685		case LT_TITLE:
4686		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4687		char *templabel;
4688		int x = 0, y = 0;
4689
4690		templabel = strdup(newKernelTitle);
4691		while (templabel[x]) {
4692		if (templabel[x] == ' ') {
4693		y = x;
4694		while (templabel[y]) {
4695		templabel[y] =
4696		templabel[y + 1];
4697		y++;
4698		}
4699		}
4700		x++;
4701		}
4702		newLine = addLine(new, config->cfi, LT_TITLE,
4703		config->primaryIndent,
4704		templabel);
4705		free(templabel);
4706		} else {
4707		newLine = addLine(new, config->cfi, LT_TITLE,
4708		config->primaryIndent,
4709		newKernelTitle);
4710		}
4711		needs &= ~NEED_TITLE;
4712		break;
4713
4714		default:
4715		abort();
4716		}
4717		}
4718
4719		struct singleLine *endLine = NULL;
4720		endLine = getLineByType(LT_ENTRY_END, new->lines);
4721		if (endLine) {
4722		removeLine(new, endLine);
4723		needs |= NEED_END;
4724		}
4725
4726		/* add the remainder of the lines, i.e. those that either
4727		* weren't present in the template, or in the case of no template,
4728		* all the lines following the entryStart.
4729		*/
4730		if (needs & NEED_TITLE) {
4731		newLine = addLine(new, config->cfi, LT_TITLE,
4732		config->secondaryIndent, newKernelTitle);
4733		needs &= ~NEED_TITLE;
4734		}
4735		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4736		newLine = addLine(new, config->cfi, LT_HYPER,
4737		config->secondaryIndent,
4738		newMBKernel + strlen(prefix));
4739		needs &= ~NEED_MB;
4740		}
4741		if (needs & NEED_KERNEL) {
4742		newLine = addLine(new, config->cfi,
4743		(new->multiboot
4744		&& getKeywordByType(LT_MBMODULE,
4745		config->cfi))
4746		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4747		config->
4748		cfi),
4749		config->secondaryIndent,
4750		newKernelPath + strlen(prefix));
4751		needs &= ~NEED_KERNEL;
4752		}
4753		if (needs & NEED_MB) {
4754		newLine = addLine(new, config->cfi, LT_HYPER,
4755		config->secondaryIndent,
4756		newMBKernel + strlen(prefix));
4757		needs &= ~NEED_MB;
4758		}
4759		if (needs & NEED_INITRD) {
4760		char *initrdVal;
4761		initrdVal =
4762		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4763		extraInitrds, extraInitrdCount);
4764		newLine =
4765		addLine(new, config->cfi,
4766		(new->multiboot
4767		&& getKeywordByType(LT_MBMODULE, config->cfi))
4768		? LT_MBMODULE : preferredLineType(LT_INITRD,
4769		config->cfi),
4770		config->secondaryIndent, initrdVal);
4771		free(initrdVal);
4772		needs &= ~NEED_INITRD;
4773		}
4774		if (needs & NEED_DEVTREE) {
4775		newLine = addLine(new, config->cfi, LT_DEVTREE,
4776		config->secondaryIndent, newDevTreePath);
4777		needs &= ~NEED_DEVTREE;
4778		}
4779
4780		/* NEEDS_END must be last on bootloaders that need it... */
4781		if (needs & NEED_END) {
4782		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4783		config->secondaryIndent, NULL);
4784		needs &= ~NEED_END;
4785		}
4786
4787	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (needs) {
4788	newKernelPath || removeKernelPath || makeDefault ||	printf(_("grubby: needs=%d, aborting\n"), needs);
4789	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	abort();
4790	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	}
4791
4792		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4793		newMBKernelArgs, NULL)) {
4794		config->isModified = 1;
4795		return 1;
4796		}
4797
4798		return 0;
4799		}
4800
4801		int main(int argc, const char **argv)
4802		{
4803		poptContext optCon;
4804		const char *grubConfig = NULL;
4805		char *outputFile = NULL;
4806		int arg = 0;
4807		int flags = 0;
4808		int badImageOkay = 0;
4809		int configureGrub2 = 0;
4810		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4811		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4812		int configureExtLinux = 0;
4813		int bootloaderProbe = 0;
4814		int extraInitrdCount = 0;
4815		char *updateKernelPath = NULL;
4816		char *newKernelPath = NULL;
4817		char *removeKernelPath = NULL;
4818		char *newKernelArgs = NULL;
4819		char *newKernelInitrd = NULL;
4820		char *newKernelTitle = NULL;
4821		char *newDevTreePath = NULL;
4822		char *newMBKernel = NULL;
4823		char *newMBKernelArgs = NULL;
4824		int newIndex = 0;
4825		char *removeMBKernelArgs = NULL;
4826		char *removeMBKernel = NULL;
4827		char *bootPrefix = NULL;
4828		char *defaultKernel = NULL;
4829		char *removeArgs = NULL;
4830		char *kernelInfo = NULL;
4831		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4832		char *envPath = NULL;
4833		const char *chptr = NULL;
4834		struct configFileInfo *cfi = NULL;
4835		struct grubConfig *config;
4836		struct singleEntry *template = NULL;
4837		int copyDefault = 0, makeDefault = 0;
4838		int displayDefault = 0;
4839		int displayDefaultIndex = 0;
4840		int displayDefaultTitle = 0;
4841		int defaultIndex = -1;
4842		struct poptOption options[] = {
4843		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4844		_("add an entry for the specified kernel"), _("kernel-path")},
4845		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4846		_("add an entry for the specified multiboot kernel"), NULL},
4847		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4848		_("default arguments for the new kernel or new arguments for "
4849		"kernel being updated"), _("args")},
4850		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4851		_("default arguments for the new multiboot kernel or "
4852		"new arguments for multiboot kernel being updated"), NULL},
4853		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4854		_
4855		("don't sanity check images in boot entries (for testing only)"),
4856		NULL},
4857		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4858		_
4859		("filesystem which contains /boot directory (for testing only)"),
4860		_("bootfs")},
4861		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4862		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4863		_("check which bootloader is installed on boot sector")},
4864		#endif
4865		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4866		_("path to grub config file to update (\"-\" for stdin)"),
4867		_("path")},
4868		{"copy-default", 0, 0, &copyDefault, 0,
4869		_("use the default boot entry as a template for the new entry "
4870		"being added; if the default is not a linux image, or if "
4871		"the kernel referenced by the default image does not exist, "
4872		"the first linux entry whose kernel does exist is used as the "
4873		"template"), NULL},
4874		{"debug", 0, 0, &debug, 0,
4875		_("print debugging information for failures")},
4876		{"default-kernel", 0, 0, &displayDefault, 0,
4877		_("display the path of the default kernel")},
4878		{"default-index", 0, 0, &displayDefaultIndex, 0,
4879		_("display the index of the default kernel")},
4880		{"default-title", 0, 0, &displayDefaultTitle, 0,
4881		_("display the title of the default kernel")},
4882		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4883		_("device tree file for new stanza"), _("dtb-path")},
4884		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4885		_("device tree directory for new stanza"), _("dtb-path")},
4886		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4887		_("configure elilo bootloader")},
4888		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4889		_("force grub2 stanzas to use efi")},
4890		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4891		_("path for environment data"),
4892		_("path")},
4893		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4894		_("configure extlinux bootloader (from syslinux)")},
4895		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4896		_("configure grub bootloader")},
4897		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4898		_("configure grub2 bootloader")},
4899		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4900		_("display boot information for specified kernel"),
4901		_("kernel-path")},
4902		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4903		_("initrd image for the new kernel"), _("initrd-path")},
4904		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4905		_
4906		("auxiliary initrd image for things other than the new kernel"),
4907		_("initrd-path")},
4908		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4909		_("configure lilo bootloader")},
4910		{"make-default", 0, 0, &makeDefault, 0,
4911		_("make the newly added entry the default boot entry"), NULL},
4912		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4913		_("path to output updated config file (\"-\" for stdout)"),
4914		_("path")},
4915		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4916		_("remove kernel arguments"), NULL},
4917		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4918		_("remove multiboot kernel arguments"), NULL},
4919		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4920		_("remove all entries for the specified kernel"),
4921		_("kernel-path")},
4922		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4923		_("remove all entries for the specified multiboot kernel"),
4924		NULL},
4925		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4926		_("make the first entry referencing the specified kernel "
4927		"the default"), _("kernel-path")},
4928		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4929		_("make the given entry index the default entry"),
4930		_("entry-index")},
4931		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4932		_("use the given index when creating a new entry"),
4933		_("entry-index")},
4934		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4935		_("configure silo bootloader")},
4936		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4937		_("title to use for the new kernel entry"), _("entry-title")},
4938		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4939		_("updated information for the specified kernel"),
4940		_("kernel-path")},
4941		{"version", 'v', 0, NULL, 'v',
4942		_("print the version of this program and exit"), NULL},
4943		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4944		_("configure yaboot bootloader")},
4945		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4946		_("configure zipl bootloader")},
4947		POPT_AUTOHELP {0, 0, 0, 0, 0}
4948		};
4949
4950		useextlinuxmenu = 0;
4951
4952		int i = 0;
4953		for (int j = 1; j < argc; j++)
4954		i += strlen(argv[j]) + 1;
4955		saved_command_line = malloc(i);
4956		if (!saved_command_line) {
4957		fprintf(stderr, "grubby: %m\n");
4958		exit(1);
4959		}
4960		saved_command_line[0] = '\0';
4961		for (int j = 1; j < argc; j++) {
4962		strcat(saved_command_line, argv[j]);
4963		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4964		}
4965
4966		optCon = poptGetContext("grubby", argc, argv, options, 0);
4967		poptReadDefaultConfig(optCon, 1);
4968
4969		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4970		switch (arg) {
4971		case 'v':
4972		printf("grubby version %s\n", VERSION);
4973		exit(0);
4974		break;
4975		case 'i':
4976		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4977		extraInitrds[extraInitrdCount++] =
4978		strdup(poptGetOptArg(optCon));
4979		} else {
4980		fprintf(stderr,
4981		_
4982		("grubby: extra initrd maximum is %d\n"),
4983		extraInitrdCount);
4984		return 1;
4985		}
4986		break;
4987		}
4988		}
4989
4990		if (arg < -1) {
4991		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4992		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4993		poptStrerror(arg));
4994		return 1;
4995		}
4996
4997		if ((chptr = poptGetArg(optCon))) {
4998		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4999		return 1;
5000		}
5001
5002		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5003		configureYaboot + configureSilo + configureZipl +
5004		configureExtLinux) > 1) {
5005		fprintf(stderr,
5006		_("grubby: cannot specify multiple bootloaders\n"));
5007		return 1;
5008		} else if (bootloaderProbe && grubConfig) {
5009		fprintf(stderr,
5010		_
5011		("grubby: cannot specify config file with --bootloader-probe\n"));
5012		return 1;
5013		} else if (configureGrub2) {
5014		cfi = &grub2ConfigType;
5015		if (envPath)
5016		cfi->envFile = envPath;
5017		} else if (configureLilo) {
5018		cfi = &liloConfigType;
5019		} else if (configureGrub) {
5020		cfi = &grubConfigType;
5021		} else if (configureELilo) {
5022		cfi = &eliloConfigType;
5023		} else if (configureYaboot) {
5024		cfi = &yabootConfigType;
5025		} else if (configureSilo) {
5026		cfi = &siloConfigType;
5027		} else if (configureZipl) {
5028		cfi = &ziplConfigType;
5029		} else if (configureExtLinux) {
5030		cfi = &extlinuxConfigType;
5031		useextlinuxmenu = 1;
5032		}
5033
5034		if (!cfi) {
5035		if (grub2FindConfig(&grub2ConfigType)) {
5036		cfi = &grub2ConfigType;
5037		if (envPath)
5038		cfi->envFile = envPath;
5039		} else
5040		#ifdef __ia64__
5041		cfi = &eliloConfigType;
5042		#elif __powerpc__
5043		cfi = &yabootConfigType;
5044		#elif __sparc__
5045		cfi = &siloConfigType;
5046		#elif __s390__
5047		cfi = &ziplConfigType;
5048		#elif __s390x__
5049		cfi = &ziplConfigtype;
5050		#else
5051		cfi = &grubConfigType;
5052		#endif
5053		}
5054
5055		if (!grubConfig) {
5056		if (cfi->findConfig)
5057		grubConfig = cfi->findConfig(cfi);
5058		if (!grubConfig)
5059		grubConfig = cfi->defaultConfig;
5060		}
5061
5062		if (bootloaderProbe && (displayDefault || kernelInfo ||
5063		newKernelPath || removeKernelPath || makeDefault
5064		|| defaultKernel || displayDefaultIndex
5065		|| displayDefaultTitle
5066		|| (defaultIndex >= 0))) {
5067		fprintf(stderr,
5068		_("grubby: --bootloader-probe may not be used with "
5069	"specified option"));	"specified option"));
5070	return 1;	return 1;
5071	}	}
5072
5073	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5074	removeKernelPath)) {	removeKernelPath)) {
5075	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5076	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5077	return 1;	return 1;
5078	}	}
5079
5080	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5081	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5082	return 1;	return 1;
5083	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5084	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5085	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5086	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5087	return 1;	return 1;
5088	}	}
5089
5090	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5091	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5092	"not be used together"));	"not be used together"));
5093	return 1;	return 1;
5094	}	}
5095
5096	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5097	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5098		"may not be used together\n"));
5099		return 1;
5100		} else if (defaultKernel && removeKernelPath &&
5101		!strcmp(defaultKernel, removeKernelPath)) {
5102		fprintf(stderr,
5103		_("grubby: cannot make removed kernel the default\n"));
5104		return 1;
5105		} else if (defaultKernel && newKernelPath &&
5106		!strcmp(defaultKernel, newKernelPath)) {
5107		makeDefault = 1;
5108		defaultKernel = NULL;
5109		} else if (defaultKernel && (defaultIndex >= 0)) {
5110		fprintf(stderr,
5111		_("grubby: --set-default and --set-default-index "
5112	"may not be used together\n"));	"may not be used together\n"));
5113	return 1;	return 1;
5114	} else if (defaultKernel && removeKernelPath &&	}
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
5115
5116	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5117	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5118	"is used\n"));	_("grubby: output file must be specified if stdin "
5119	return 1;	"is used\n"));
5120	}	return 1;
5121		}
5122
5123	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5124	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5125	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5126	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5127	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5128	}	return 1;
5129		}
5130
5131	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5132
5133	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5134	if (!bootPrefix) {	if (!bootPrefix) {
5135	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5136	if (!bootPrefix) return 1;	if (!bootPrefix)
5137	} else {	return 1;
5138	/* this shouldn't end with a / */	} else {
5139	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5140	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5141		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5142		}
5143		} else {
5144		bootPrefix = "";
5145	}	}
	} else {
	bootPrefix = "";
	}
5146
5147	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5148	extraInitrdCount > 0) {	fprintf(stderr,
5149	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5150	return 1;	cfi->defaultConfig);
5151	}	return 1;
5152		}
5153
5154	if (bootloaderProbe) {	if (bootloaderProbe) {
5155	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5156	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5157
5158	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5159	if (grub2config) {	if (grub2config) {
5160	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5161	if (!gconfig)	if (!gconfig)
5162	gr2c = 1;	gr2c = 1;
5163	else	else
5164	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5165	}	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	erc = 1;
	else
	erc = checkForExtLinux(lconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1) return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
5166
5167	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5168	}	if (!access(grubconfig, F_OK)) {
5169		gconfig = readConfig(grubconfig, &grubConfigType);
5170		if (!gconfig)
5171		grc = 1;
5172		else
5173		grc = checkForGrub(gconfig);
5174		}
5175
5176	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5177	if (!config) return 1;	lconfig =
5178		readConfig(liloConfigType.defaultConfig,
5179		&liloConfigType);
5180		if (!lconfig)
5181		lrc = 1;
5182		else
5183		lrc = checkForLilo(lconfig);
5184		}
5185
5186	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5187	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5188	struct singleEntry * entry;	&eliloConfigType);
5189	char * rootspec;	if (!econfig)
5190		erc = 1;
5191	if (config->defaultImage == -1) return 0;	else
5192	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5193	if (!entry) return 0;	}
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, 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));
5194
5195	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5196		lconfig =
5197		readConfig(extlinuxConfigType.defaultConfig,
5198		&extlinuxConfigType);
5199		if (!lconfig)
5200		extrc = 1;
5201		else
5202		extrc = checkForExtLinux(lconfig);
5203		}
5204
5205		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5206		yconfig = readConfig(yabootConfigType.defaultConfig,
5207		&yabootConfigType);
5208		if (!yconfig)
5209		yrc = 1;
5210		else
5211		yrc = checkForYaboot(yconfig);
5212		}
5213
5214		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5215		|| erc == 1)
5216		return 1;
5217
5218		if (lrc == 2)
5219		printf("lilo\n");
5220		if (gr2c == 2)
5221		printf("grub2\n");
5222		if (grc == 2)
5223		printf("grub\n");
5224		if (extrc == 2)
5225		printf("extlinux\n");
5226		if (yrc == 2)
5227		printf("yaboot\n");
5228		if (erc == 2)
5229		printf("elilo\n");
5230
5231	} else if (displayDefaultTitle) {	return 0;
	struct singleLine * line;
	struct singleEntry * entry;
	if (config->defaultImage == -1) return 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);
	} else {
	int i;
	size_t len;
	char * start;
	char * tmp;
	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	for (i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (*line->elements[i].item == '\'')
	start = line->elements[i].item + 1;
	else
	start = line->elements[i].item;
	len = strlen(start);
	if (*(start + len - 1) == '\'') {
	tmp = strdup(start);
	*(tmp + len - 1) = '\0';
	printf("%s", tmp);
	free(tmp);
	break;
	} else {
	printf("%s ", start);
	}
	}
	printf("\n");
5232	}	}
	return 0;
5233
5234	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5235	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5236	printf("%i\n", config->defaultImage);	exit(1);
5237		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5238
5239	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5240	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5241	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5242	bootPrefix, flags);
5243	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5244	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5245	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5246	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5247	if (updateInitrd(config, updateKernelPath, bootPrefix,
5248	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5249	}	return 0;
5250	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5251	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5252	extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5253	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5254		if (!entry)
5255		return 0;
5256	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5257	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5258	"Not writing out new config.\n"));
5259	return 1;	line =
5260	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5261		LT_KERNEL_16, entry->lines);
5262		if (!line)
5263		return 0;
5264
5265		rootspec = getRootSpecifier(line->elements[1].item);
5266		printf("%s%s\n", bootPrefix, line->elements[1].item +
5267		((rootspec != NULL) ? strlen(rootspec) : 0));
5268
5269		return 0;
5270
5271		} else if (displayDefaultTitle) {
5272		struct singleLine *line;
5273		struct singleEntry *entry;
5274
5275		if (config->defaultImage == NO_DEFAULT_ENTRY)
5276		return 0;
5277		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5278		cfi->defaultIsSaved)
5279		config->defaultImage = FIRST_ENTRY_INDEX;
5280		entry = findEntryByIndex(config, config->defaultImage);
5281		if (!entry)
5282		return 0;
5283
5284		if (!configureGrub2) {
5285		char *title;
5286		line = getLineByType(LT_TITLE, entry->lines);
5287		if (!line)
5288		return 0;
5289		title = extractTitle(config, line);
5290		if (!title)
5291		return 0;
5292		printf("%s\n", title);
5293		free(title);
5294		} else {
5295		char *title;
5296
5297		dbgPrintf
5298		("This is GRUB2, default title is embeded in menuentry\n");
5299		line = getLineByType(LT_MENUENTRY, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = grub2ExtractTitle(line);
5303		if (title)
5304		printf("%s\n", title);
5305		}
5306		return 0;
5307
5308		} else if (displayDefaultIndex) {
5309		if (config->defaultImage == NO_DEFAULT_ENTRY)
5310		return 0;
5311		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5312		cfi->defaultIsSaved)
5313		config->defaultImage = FIRST_ENTRY_INDEX;
5314		printf("%i\n", config->defaultImage);
5315		return 0;
5316
5317		} else if (kernelInfo)
5318		return displayInfo(config, kernelInfo, bootPrefix);
5319
5320		if (copyDefault) {
5321		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5322		if (!template)
5323		return 1;
5324		}
5325
5326		markRemovedImage(config, removeKernelPath, bootPrefix);
5327		markRemovedImage(config, removeMBKernel, bootPrefix);
5328		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5329		makeDefault, bootPrefix, flags, defaultIndex,
5330		newIndex);
5331		setFallbackImage(config, newKernelPath != NULL);
5332		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5333		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5334		return 1;
5335		if (updateKernelPath && newKernelInitrd) {
5336		if (newMBKernel) {
5337		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5338		bootPrefix, newKernelInitrd,
5339		newKernelTitle))
5340		return 1;
5341		} else {
5342		if (updateInitrd(config, updateKernelPath, bootPrefix,
5343		newKernelInitrd, newKernelTitle))
5344		return 1;
5345		}
5346		}
5347		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5348		newKernelTitle, newKernelArgs, newKernelInitrd,
5349		(const char **)extraInitrds, extraInitrdCount,
5350		newMBKernel, newMBKernelArgs, newDevTreePath,
5351		newIndex))
5352		return 1;
5353
5354		if (numEntries(config) == 0) {
5355		fprintf(stderr,
5356		_("grubby: doing this would leave no kernel entries. "
5357		"Not writing out new config.\n"));
5358		return 1;
5359		}
5360
5361	if (!outputFile)	if (!outputFile)
5362	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5363
5364	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5365	}	}

---

Colored Diff Long Colored Diff Full Colored Diff Unidiff Context Diff Side by Side

Legend: Removed from v.1736   changed lines   Added in v.3024