Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1721 by niro, Sat Feb 18 00:52:28 2012 UTC	revision 3019 by niro, Tue Jun 27 14:38:16 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 */
52
53	#define _(A) (A)	#define _(A) (A)
54
55	#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */	#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */
#	Line 54	Line 58
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 109  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		static int iskernel(enum lineType_e type)
429		{
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	dbgPrintf("not found\n");	i++;
483	return configFiles[i];	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;
942	free(line->elements[i].item);
943	free(line->elements[i].indent);	return 0;
944	}	}
945
946	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
947	lineInit(line);	{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	int i;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	if (fprintf(out, "%s", line->indent) == -1) return -1;	newLine->indent = strdup(line->indent);
960		newLine->next = NULL;
961		newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	for (i = 0; i < line->numElements; i++) {	for (int i = 0; i < newLine->numElements; i++) {
967	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fputc('"', out) == EOF) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	return newLine;
972	if (i < line->numElements - 1)	}
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	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	line->type = LT_WHITESPACE;	element->indent = strndup(start, chptr - start);
1105	line->numElements = 0;	start = chptr;
	}
	} else {
	struct keywordTypes *kw;
1106
1107	kw = getKeywordByType(line->type, cfi);	line->numElements++;
1108		first = 0;
1109	/* space isn't the only separator, we need to split	}
	* elements up more
	*/
	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;
1110
1111	numNewElements = 0;	if (!line->numElements)
1112	p = line->elements[i].item;	line->type = LT_WHITESPACE;
1113	while (*p != '\0') {	else {
1114	if (*p == kw->separatorChar)	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	numNewElements++;	if (line->type == LT_UNKNOWN) {
1116	p++;	/* zipl does [title] instead of something reasonable
1117	}	* like all the other boot loaders.  kind of ugly */
1118	if (line->numElements + numNewElements >= elementsAlloced) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	elementsAlloced += numNewElements + 5;	line->type = LT_TITLE;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
1120	}	}
1121
1122	for (j = line->numElements; j > i; j--) {	/* this is awkward, but we need to be able to handle
1123	line->elements[j + numNewElements] = line->elements[j];	* 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		line->type = LT_WHITESPACE;
1151		line->numElements = 0;
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)) {
	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);
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
	}
	}
1583
1584	return 0;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	}	if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673	static int numEntries(struct grubConfig *cfg) {	if (entry) {
1674	int i = 0;	cfg->defaultImage = i;
1675	struct singleEntry * entry;	} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677	entry = cfg->entries;	}
1678	while (entry) {	}
1679	if (!entry->skip)	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680	i++;	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681	entry = entry->next;	if (defTitle) {
1682	}	int index = 0;
1683	return i;	if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697	}	}
1698
1699	static char *findDiskForRoot()	static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701	{	{
1702	int fd;	struct singleEntry *entry;
1703	char buf[65536];	struct singleLine *line;
1704	char *devname;	int i;
1705	char *chptr;
1706	int rc;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		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	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	entry = cfg->entries;
1739	fprintf(stderr, "grubby: failed to open %s: %s\n",	while (entry && entry->skip)
1740	_PATH_MOUNTED, strerror(errno));	entry = entry->next;
1741	return NULL;
1742	}	i = 0;
1743		while (entry && i < image) {
1744		entry = entry->next;
1745
1746	rc = read(fd, buf, sizeof(buf) - 1);	while (entry && entry->skip)
1747	if (rc <= 0) {	entry = entry->next;
1748	fprintf(stderr, "grubby: failed to read %s: %s\n",	i++;
1749	_PATH_MOUNTED, strerror(errno));	}
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/*
	* Move back 2, which is the first space after the device name, set
	* it to \0 so strdup will just get the devicename.
	*/
	chptr -= 2;
	*chptr = '\0';
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1750
1751	return NULL;	if (!entry)
1752	}	return;
1753
1754	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	line = getLineByType(LT_TITLE, entry->lines);
	int skipRemoved, int flags) {
	struct singleLine * line;
	char * fullName;
	int i;
	char * dev;
	char * rootspec;
	char * rootdev;
	if (skipRemoved && entry->skip) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line || line->numElements < 2) return 0;
	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;
	fullName = alloca(strlen(bootPrefix) +
	strlen(line->elements[1].item) + 1);
	rootspec = getRootSpecifier(line->elements[1].item);
	sprintf(fullName, "%s%s", bootPrefix,
	line->elements[1].item + (rootspec ? strlen(rootspec) : 0));
	if (access(fullName, R_OK)) 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);
1755
1756	if (line && line->numElements >= 2) {	if (line && line->numElements >= 2)
1757	dev = line->elements[1].item;	fprintf(out, "%sdefault%s%s\n", indent,
1758	} else {	separator, line->elements[1].item);
1759	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	else if (line && (line->numElements == 1)
1760	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	&& cfg->cfi->titleBracketed) {
1761	*/	char *title = extractTitle(cfg, line);
1762	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (title) {
1763		fprintf(out, "%sdefault%s%s\n", indent,
1764	/* failed to find one */	separator, title);
1765	if (!line) return 0;	free(title);
1766		}
1767	for (i = 1; i < line->numElements; i++)	}
1768	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	}
	if (i < line->numElements)
	dev = line->elements[i].item + 5;
	else {
	/* it failed too...  can't find root= */
	return 0;
	}
1769	}	}
1770	}	}
	dev = getpathbyspec(dev);
	if (!dev)
	return 0;
	rootdev = findDiskForRoot();
	if (!rootdev)
	return 0;
	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
	free(rootdev);
	return 0;
	}
1771
1772	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	static int writeConfig(struct grubConfig *cfg, char *outName,
1773	free(rootdev);	const char *prefix)
1774	return 0;	{
1775	}	FILE *out;
1776		struct singleLine *line;
1777		struct singleEntry *entry;
1778		char *tmpOutName;
1779		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	free(rootdev);	outName = buf;
1812		outName[rc] = '\0';
1813		}
1814
1815	return 1;	tmpOutName = alloca(strlen(outName) + 2);
1816	}	sprintf(tmpOutName, "%s-", outName);
1817		out = fopen(tmpOutName, "w");
1818		if (!out) {
1819		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1820		tmpOutName, strerror(errno));
1821		return 1;
1822		}
1823
1824	/* returns the first match on or after the one pointed to by index (if index	if (!stat(outName, &sb)) {
1825	is not NULL) which is not marked as skip */	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1826	struct singleEntry * findEntryByPath(struct grubConfig * config,	fprintf(stderr,
1827	const char * kernel, const char * prefix,	_
1828	int * index) {	("grubby: error setting perms on %s: %s\n"),
1829	struct singleEntry * entry = NULL;	tmpOutName, strerror(errno));
1830	struct singleLine * line;	fclose(out);
1831	int i;	unlink(tmpOutName);
1832	char * chptr;	return 1;
1833	char * rootspec = NULL;	}
1834	enum lineType_e checkType = LT_KERNEL;	}
1835		}
1836
1837	if (isdigit(*kernel)) {	line = cfg->theLines;
1838	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1839		while (line) {
1840		if (line->type == LT_SET_VARIABLE && defaultKw &&
1841		line->numElements == 3 &&
1842		!strcmp(line->elements[1].item, defaultKw->key) &&
1843		!is_special_grub2_variable(line->elements[2].item)) {
1844		writeDefault(out, line->indent,
1845		line->elements[0].indent, cfg);
1846		needs &= ~MAIN_DEFAULT;
1847		} else if (line->type == LT_DEFAULT) {
1848		writeDefault(out, line->indent,
1849		line->elements[0].indent, cfg);
1850		needs &= ~MAIN_DEFAULT;
1851		} else if (line->type == LT_FALLBACK) {
1852		if (cfg->fallbackImage > -1)
1853		fprintf(out, "%s%s%s%d\n", line->indent,
1854		line->elements[0].item,
1855		line->elements[0].indent,
1856		cfg->fallbackImage);
1857		} else {
1858		if (lineWrite(out, line, cfg->cfi) == -1) {
1859		fprintf(stderr,
1860		_("grubby: error writing %s: %s\n"),
1861		tmpOutName, strerror(errno));
1862		fclose(out);
1863		unlink(tmpOutName);
1864		return 1;
1865		}
1866		}
1867
1868	i = 0;	line = line->next;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
1869	}	}
1870
1871	if (*chptr) {	if (needs & MAIN_DEFAULT) {
1872	/* can't parse it, bail */	writeDefault(out, cfg->primaryIndent, "=", cfg);
1873	return NULL;	needs &= ~MAIN_DEFAULT;
1874	}	}
1875
	indexVars[i + 1] = -1;
1876	i = 0;	i = 0;
1877	if (index) {	while ((entry = findEntryByIndex(cfg, i++))) {
1878	while (i < *index) i++;	if (entry->skip)
1879	if (indexVars[i] == -1) return NULL;	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	entry = findEntryByIndex(config, indexVars[i]);	if (tmpOutName) {
1896	if (!entry) return NULL;	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	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	return 0;
1906	if (!line) return NULL;	}
1907
1908	if (index) *index = indexVars[i];	static int numEntries(struct grubConfig *cfg)
1909	return entry;	{
1910	}	int i = 0;
1911		struct singleEntry *entry;
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
	} else {
	entry = findEntryByIndex(config, config->defaultImage);
	if (entry && entry->skip)
	entry = NULL;
	else if (index)
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
1912
1913	while ((entry = findEntryByIndex(config, i))) {	entry = cfg->entries;
1914	if (!entry->skip) break;	while (entry) {
1915	i++;	if (!entry->skip)
1916		i++;
1917		entry = entry->next;
1918	}	}
1919		return i;
1920		}
1921
1922	if (entry && index)	static char *findDiskForRoot()
1923	*index = i;	{
1924	} else {	int fd;
1925	if (index)	char buf[65536];
1926	i = *index;	char *devname;
1927	else	char *chptr;
1928	i = 0;	int rc;
1929
1930	if (!strncmp(kernel, "TITLE=", 6)) {	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1931	prefix = "";	fprintf(stderr, "grubby: failed to open %s: %s\n",
1932	checkType = LT_TITLE;	_PATH_MOUNTED, strerror(errno));
1933	kernel += 6;	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	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *foundanswer = NULL;
	if (entry->skip) continue;
1948
1949	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	while (chptr && chptr != buf + rc) {
1950		devname = chptr;
1951
1952	/* check all the lines matching checkType */	/*
1953	for (line = entry->lines; line; line = line->next) {	* The first column of a mtab entry is the device, but if the
1954	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	* entry is a special device it won't start with /, so move
1955	LT_KERNEL|LT_MBMODULE|LT_HYPER :	* on to the next line.
1956	checkType, line);	*/
1957	if (!line) break;  /* not found in this entry */	if (*devname != '/') {
1958		chptr = strchr(chptr, '\n');
1959		if (chptr)
1960		chptr++;
1961		continue;
1962		}
1963
1964	if (line && line->numElements >= 2) {	/* Seek to the next space */
1965	rootspec = getRootSpecifier(line->elements[1].item);	chptr = strchr(chptr, ' ');
1966	if (!strcmp(line->elements[1].item +	if (!chptr) {
1967	((rootspec != NULL) ? strlen(rootspec) : 0),	fprintf(stderr, "grubby: error parsing %s: %s\n",
1968	kernel + strlen(prefix)))	_PATH_MOUNTED, strerror(errno));
1969	break;	return NULL;
1970	}	}
	}
1971
1972	/* make sure this entry has a kernel identifier; this skips	/*
1973	* non-Linux boot entries (could find netbsd etc, though, which is	* The second column of a mtab entry is the mount point, we
1974	* unfortunate)	* are looking for '/' obviously.
1975	*/	*/
1976	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1977	break; /* found 'im! */	/* remember the last / entry in mtab */
1978		foundanswer = devname;
1979		}
1980
1981		/* Next line */
1982		chptr = strchr(chptr, '\n');
1983		if (chptr)
1984		chptr++;
1985	}	}
1986
1987	if (index) *index = i;	/* Return the last / entry found */
1988	}	if (foundanswer) {
1989		chptr = strchr(foundanswer, ' ');
1990		*chptr = '\0';
1991		return strdup(foundanswer);
1992		}
1993
1994	return entry;	return NULL;
1995	}	}
1996
1997	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	void printEntry(struct singleEntry *entry, FILE * f)
1998	struct singleEntry * entry;	{
1999		int i;
2000		struct singleLine *line;
2001
2002	entry = cfg->entries;	for (line = entry->lines; line; line = line->next) {
2003	while (index && entry) {	log_message(f, "DBG: %s", line->indent);
2004	entry = entry->next;	for (i = 0; i < line->numElements; i++) {
2005	index--;	/* Need to handle this, because we strip the quotes from
2006	}	* 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	return entry;	continue;
2017	}	}
2018
2019	/* Find a good template to use for the new kernel. An entry is	log_message(f, "%s%s",
2020	* good if the kernel and mkinitrd exist (even if the entry	line->elements[i].item,
2021	* is going to be removed). Try and use the default entry, but	line->elements[i].indent);
2022	* if that doesn't work just take the first. If we can't find one,	}
2023	* bail. */	log_message(f, "\n");
	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,
	int * indexPtr, int skipRemoved, int flags) {
	struct singleEntry * entry, * entry2;
	int index;
	if (cfg->defaultImage > -1) {
	entry = findEntryByIndex(cfg, cfg->defaultImage);
	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
	if (indexPtr) *indexPtr = cfg->defaultImage;
	return entry;
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	index = 0;	va_start(argp, fmt);
	while ((entry = findEntryByIndex(cfg, index))) {
	if (suitableImage(entry, prefix, skipRemoved, flags)) {
	int j;
	for (j = 0; j < index; j++) {
	entry2 = findEntryByIndex(cfg, j);
	if (entry2->skip) index--;
	}
	if (indexPtr) *indexPtr = index;
2034
2035	return entry;	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	index++;	printEntry(entry, NULL);
2045	}	va_end(argq);
2046
2047		if (!debug) {
2048		once = 1;
2049		va_end(argp);
2050		return;
2051		}
2052
2053	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	if (okay) {
2054		va_end(argp);
2055		return;
2056		}
2057
2058	return NULL;	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	char * findBootPrefix(void) {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	struct stat sb, sb2;
2069
2070	stat("/", &sb);	static int endswith(const char *s, char c)
2071	#ifdef __ia64__	{
2072	stat("/boot/efi/EFI/redhat/", &sb2);	int slen;
	#else
	stat("/boot", &sb2);
	#endif
2073
2074	if (sb.st_dev == sb2.st_dev)	if (!s || !s[0])
2075	return strdup("");	return 0;
2076		slen = strlen(s) - 1;
2077
2078	#ifdef __ia64__	return s[slen] == c;
	return strdup("/boot/efi/EFI/redhat/");
	#else
	return strdup("/boot");
	#endif
2079	}	}
2080
2081	void markRemovedImage(struct grubConfig * cfg, const char * image,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2082	const char * prefix) {	int skipRemoved, int flags)
2083	struct singleEntry * entry;	{
2084		struct singleLine *line;
2085	if (!image) return;	char *fullName;
2086		int i;
2087	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	char *dev;
2088	entry->skip = 1;	char *rootspec;
2089	}	char *rootdev;
2090
2091	void setDefaultImage(struct grubConfig * config, int hasNew,	if (skipRemoved && entry->skip) {
2092	const char * defaultKernelPath, int newIsDefault,	notSuitablePrintf(entry, 0, "marked to skip\n");
2093	const char * prefix, int flags) {	return 0;
2094	struct singleEntry * entry, * entry2, * newDefault;	}
2095	int i, j;
2096		line =
2097	if (newIsDefault) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2098	config->defaultImage = 0;	entry->lines);
2099	return;	if (!line) {
2100	} else if (defaultKernelPath) {	notSuitablePrintf(entry, 0, "no line found\n");
2101	i = 0;	return 0;
2102	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	}
2103	config->defaultImage = i;	if (line->numElements < 2) {
2104	} else {	notSuitablePrintf(entry, 0, "line has only %d elements\n",
2105	config->defaultImage = -1;	line->numElements);
2106	return;	return 0;
2107		}
2108
2109		if (flags & GRUBBY_BADIMAGE_OKAY) {
2110		notSuitablePrintf(entry, 1, "\n");
2111		return 1;
2112	}	}
	}
2113
2114	/* defaultImage now points to what we'd like to use, but before any order	fullName = alloca(strlen(bootPrefix) +
2115	changes */	strlen(line->elements[1].item) + 1);
2116	if (config->defaultImage == DEFAULT_SAVED)	rootspec = getRootSpecifier(line->elements[1].item);
2117	/* default is set to saved, we don't want to change it */	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2118	return;	int hasslash = endswith(bootPrefix, '/') ||
2119		beginswith(line->elements[1].item + rootspec_offset, '/');
2120	if (config->defaultImage > -1)	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2121	entry = findEntryByIndex(config, config->defaultImage);	line->elements[1].item + rootspec_offset);
2122	else	if (access(fullName, R_OK)) {
2123	entry = NULL;	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	if (entry && !entry->skip) {	if (line && line->numElements >= 2) {
2136	/* we can preserve the default */	dev = line->elements[1].item;
2137	if (hasNew)	} else {
2138	config->defaultImage++;	/* didn't succeed in finding a LT_ROOT, let's try
2139		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2140	/* count the number of entries erased before this one */	* for the args, so check that too.
2141	for (j = 0; j < config->defaultImage; j++) {	*/
2142	entry2 = findEntryByIndex(config, j);	line =
2143	if (entry2->skip) config->defaultImage--;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2144	}	entry->lines);
2145	} else if (hasNew) {
2146	config->defaultImage = 0;	/* failed to find one */
2147	} else {	if (!line) {
2148	/* Either we just erased the default (or the default line was bad	notSuitablePrintf(entry, 0, "no line found\n");
2149	* to begin with) and didn't put a new one in. We'll use the first	return 0;
2150	* valid image. */	}
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
	}
2151
2152	void setFallbackImage(struct grubConfig * config, int hasNew) {	for (i = 1; i < line->numElements; i++)
2153	struct singleEntry * entry, * entry2;	if (!strncasecmp
2154	int j;	(line->elements[i].item, "root=", 5))
2155		break;
2156	if (config->fallbackImage == -1) return;	if (i < line->numElements)
2157		dev = line->elements[i].item + 5;
2158	entry = findEntryByIndex(config, config->fallbackImage);	else {
2159	if (!entry || entry->skip) {	notSuitablePrintf(entry, 0,
2160	config->fallbackImage = -1;	"no root= entry found\n");
2161	return;	/* it failed too...  can't find root= */
2162	}	return 0;
2163		}
2164		}
2165		}
2166
2167	if (hasNew)	dev = getpathbyspec(dev);
2168	config->fallbackImage++;	if (!getpathbyspec(dev)) {
2169		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2170	/* count the number of entries erased before this one */	dev);
2171	for (j = 0; j < config->fallbackImage; j++) {	return 0;
2172	entry2 = findEntryByIndex(config, j);	} else
2173	if (entry2->skip) config->fallbackImage--;	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 (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2182		notSuitablePrintf(entry, 0,
2183		"uuid missing: rootdev %s, dev %s\n",
2184		getuuidbydev(rootdev), getuuidbydev(dev));
2185		free(rootdev);
2186		return 0;
2187		}
2188
2189		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2190		notSuitablePrintf(entry, 0,
2191		"uuid mismatch: rootdev %s, dev %s\n",
2192		getuuidbydev(rootdev), getuuidbydev(dev));
2193		free(rootdev);
2194		return 0;
2195		}
2196
2197		free(rootdev);
2198		notSuitablePrintf(entry, 1, "\n");
2199
2200		return 1;
2201	}	}
2202
2203	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* returns the first match on or after the one pointed to by index (if index
2204	struct singleLine * line;	is not NULL) which is not marked as skip */
2205	char * root = NULL;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2206	int i;	const char *kernel, const char *prefix,
2207		int *index)
2208	printf("index=%d\n", index);	{
2209		struct singleEntry *entry = NULL;
2210	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	struct singleLine *line;
2211	if (!line) {	int i;
2212	printf("non linux entry\n");	char *chptr;
2213	return;	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	printf("kernel=%s\n", line->elements[1].item);	if (*chptr) {
2228		/* can't parse it, bail */
2229		return NULL;
2230		}
2231
2232	if (line->numElements >= 3) {	indexVars[i + 1] = -1;
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2233
2234	i++;	i = 0;
2235	}	if (index) {
2236	printf("\"\n");	while (i < *index) {
2237	} else {	i++;
2238	line = getLineByType(LT_KERNELARGS, entry->lines);	if (indexVars[i] == -1)
2239	if (line) {	return NULL;
2240	char * s;	}
2241		}
2242
2243	printf("args=\"");	entry = findEntryByIndex(config, indexVars[i]);
2244	i = 1;	if (!entry)
2245	while (i < line->numElements) {	return NULL;
2246	if (!strncmp(line->elements[i].item, "root=", 5)) {
2247	root = line->elements[i].item + 5;	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 {	} else {
2262	s = line->elements[i].item;	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	printf("%s%s", s, line->elements[i].indent);	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	i++;	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	s = line->elements[i - 1].indent;	if (index)
2345	printf("\"\n");	*index = i;
2346	}	}
	}
2347
2348	if (!root) {	return entry;
2349	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2350
2351	if (root) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2352	char * s = alloca(strlen(root) + 1);	int *index)
2353		{
2354	strcpy(s, root);	struct singleEntry *entry;
2355	if (s[strlen(s) - 1] == '"')	struct singleLine *line;
2356	s[strlen(s) - 1] = '\0';	int i;
2357	/* make sure the root doesn't have a trailing " */	char *newtitle;
2358	printf("root=%s\n", s);
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	line = getLineByType(LT_INITRD, entry->lines);	if (!entry)
2375		return NULL;
2376
2377	if (line && line->numElements >= 2) {	if (index)
2378	printf("initrd=%s", prefix);	*index = i;
2379	for (i = 1; i < line->numElements; i++)	return entry;
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2380	}	}
2381
2382	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2383	FILE * in;	{
2384	char buf[1024];	struct singleEntry *entry;
	char * chptr;
	char * start;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
	fclose(in);
2385
2386	return 0;	entry = cfg->entries;
2387	}	while (index && entry) {
2388		entry = entry->next;
2389		index--;
2390		}
2391
2392	void dumpSysconfigGrub(void) {	return entry;
	char * boot;
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
2393	}	}
2394
2395	int displayInfo(struct grubConfig * config, char * kernel,	/* Find a good template to use for the new kernel. An entry is
2396	const char * prefix) {	* good if the kernel and mkinitrd exist (even if the entry
2397	int i = 0;	* is going to be removed). Try and use the default entry, but
2398	struct singleEntry * entry;	* if that doesn't work just take the first. If we can't find one,
2399	struct singleLine * line;	* bail. */
2400		struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2401	entry = findEntryByPath(config, kernel, prefix, &i);	int *indexPtr, int skipRemoved, int flags)
2402	if (!entry) {	{
2403	fprintf(stderr, _("grubby: kernel not found\n"));	struct singleEntry *entry, *entry2;
2404	return 1;	int index;
	}
2405
2406	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (cfg->cfi->defaultIsSaved) {
2407	be a better way */	if (cfg->cfi->getEnv) {
2408	if (config->cfi == &grubConfigType) {	char *defTitle =
2409	dumpSysconfigGrub();	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2410	} else {	if (defTitle) {
2411	line = getLineByType(LT_BOOT, config->theLines);	int index = 0;
2412	if (line && line->numElements >= 1) {	if (isnumber(defTitle)) {
2413	printf("boot=%s\n", line->elements[1].item);	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	line = getLineByType(LT_LBA, config->theLines);	index = 0;
2440	if (line) printf("lba\n");	while ((entry = findEntryByIndex(cfg, index))) {
2441	}	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2442		int j;
2443	displayEntry(entry, prefix, i);	for (j = 0; j < index; j++) {
2444		entry2 = findEntryByIndex(cfg, j);
2445	i++;	if (entry2->skip)
2446	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	index--;
2447	displayEntry(entry, prefix, i);	}
2448	i++;	if (indexPtr)
2449	}	*indexPtr = index;
2450
2451	return 0;	return entry;
2452	}	}
2453
2454	struct singleLine * addLineTmpl(struct singleEntry * entry,	index++;
	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);
	}
2455	}	}
	}
2456
2457	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	fprintf(stderr,
2458	newLine->elements[0].item : "");	_("grubby fatal error: unable to find a suitable template\n"));
2459
2460	if (!entry->lines) {	return NULL;
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
2461	}	}
2462
2463	/* val may be NULL */	char *findBootPrefix(void)
2464	struct singleLine *  addLine(struct singleEntry * entry,	{
2465	struct configFileInfo * cfi,	struct stat sb, sb2;
	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 = "";
	}
	}
2466
2467	/* The last non-empty line gives us the indention to us and the line	stat("/", &sb);
2468	to insert after. Note that comments are considered empty lines, which	#ifdef __ia64__
2469	may not be ideal? If there are no lines or we are looking at the	stat("/boot/efi/EFI/redhat/", &sb2);
2470	first line, we use defaultIndent (the first line is normally indented	#else
2471	differently from the rest) */	stat("/boot", &sb2);
2472	for (line = entry->lines, prev = NULL; line; line = line->next) {	#endif
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
2473
2474	struct singleLine *menuEntry;	if (sb.st_dev == sb2.st_dev)
2475	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	return strdup("");
	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;
	}
2476
2477	return addLineTmpl(entry, &tmpl, prev, val, cfi);	#ifdef __ia64__
2478		return strdup("/boot/efi/EFI/redhat/");
2479		#else
2480		return strdup("/boot");
2481		#endif
2482	}	}
2483
2484	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void markRemovedImage(struct grubConfig *cfg, const char *image,
2485	struct singleLine * prev;	const char *prefix)
2486	int i;	{
2487		struct singleEntry *entry;
2488
2489	for (i = 0; i < line->numElements; i++) {	if (!image)
2490	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2491
2492	if (line == entry->lines) {	/* check and see if we're removing the default image */
2493	entry->lines = line->next;	if (isdigit(*image)) {
2494	} else {	entry = findEntryByPath(cfg, image, prefix, NULL);
2495	prev = entry->lines;	if (entry)
2496	while (prev->next != line) prev = prev->next;	entry->skip = 1;
2497	prev->next = line->next;	return;
2498	}	}
2499
2500	free(line);	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2501		entry->skip = 1;
2502	}	}
2503
2504	static int isquote(char q)	void setDefaultImage(struct grubConfig *config, int isUserSpecifiedKernelPath,
2505		const char *defaultKernelPath, int newBootEntryIsDefault,
2506		const char *prefix, int flags, int newDefaultBootEntryIndex)
2507	{	{
2508	if (q == '\'' || q == '\"')	struct singleEntry *entry, *entry2, *newDefault;
2509	return 1;	int i, j;
	return 0;
	}
2510
2511	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	if (newBootEntryIsDefault) {
2512	{	config->defaultImage = FIRST_ENTRY_INDEX;
2513	struct singleLine newLine = {	return;
2514	.indent = tmplLine->indent,	} else if ((newDefaultBootEntryIndex >= 0) && config->cfi->defaultIsIndex) {
2515	.type = tmplLine->type,	if (findEntryByIndex(config, newDefaultBootEntryIndex))
2516	.next = tmplLine->next,	config->defaultImage = newDefaultBootEntryIndex;
2517	};	else
2518	int firstQuotedItem = -1;	config->defaultImage = NO_DEFAULT_ENTRY;
2519	int quoteLen = 0;	return;
2520	int j;	} else if (defaultKernelPath) {
2521	int element = 0;	i = 0;
2522	char *c;	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
2523		config->defaultImage = i;
2524	c = malloc(strlen(tmplLine->elements[0].item) + 1);	} else {
2525	strcpy(c, tmplLine->elements[0].item);	config->defaultImage = NO_DEFAULT_ENTRY;
2526	insertElement(&newLine, c, element++, cfi);	return;
2527	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;
	}
2528	}	}
	}
	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] = ' ';
	}
2529
2530	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	/* defaultImage now points to what we'd like to use, but before any
2531	/* move the end-of-line forward */	* order changes */
2532	line->elements[insertHere].indent =	if ((config->defaultImage == DEFAULT_SAVED) ||
2533	line->elements[insertHere-1].indent;	(config->defaultImage == DEFAULT_SAVED_GRUB2))
2534	line->elements[insertHere-1].indent = strdup(indent);	/* default is set to saved, we don't want to change it */
2535	} else {	return;
	line->elements[insertHere].indent = strdup(indent);
	}
2536
2537	line->numElements++;	if (config->defaultImage >= FIRST_ENTRY_INDEX)
2538		entry = findEntryByIndex(config, config->defaultImage);
2539		else
2540		entry = NULL;
2541
2542	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	if (entry && !entry->skip) {
2543	line->elements[0].item,	/* we can preserve the default */
2544	line->elements[insertHere].item,	if (isUserSpecifiedKernelPath)
2545	line->elements[insertHere].indent,	config->defaultImage++;
2546	insertHere);
2547		/* count the number of entries erased before this one */
2548		for (j = 0; j < config->defaultImage; j++) {
2549		entry2 = findEntryByIndex(config, j);
2550		if (entry2->skip)
2551		config->defaultImage--;
2552		}
2553		} else if (isUserSpecifiedKernelPath) {
2554		config->defaultImage = FIRST_ENTRY_INDEX;
2555		} else {
2556		/* Either we just erased the default (or the default line was
2557		* bad to begin with) and didn't put a new one in. We'll use
2558		* the first valid image. */
2559		newDefault =
2560		findTemplate(config, prefix, &config->defaultImage, 1,
2561		flags);
2562		if (!newDefault)
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564		}
2565	}	}
2566
2567	static void removeElement(struct singleLine * line, int removeHere) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2568	int i;	{
2569		struct singleEntry *entry, *entry2;
2570	/* sanity check */	int j;
	if (removeHere >= line->numElements) return;
2571
2572	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	if (config->fallbackImage == -1)
2573	removeHere, line->elements[removeHere].item);	return;
2574
2575	free(line->elements[removeHere].item);	entry = findEntryByIndex(config, config->fallbackImage);
2576		if (!entry || entry->skip) {
2577		config->fallbackImage = -1;
2578		return;
2579		}
2580
2581	if (removeHere > 1) {	if (hasNew)
2582	/* previous argument gets this argument's post-indentation */	config->fallbackImage++;
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2583
2584	/* now collapse the array, but don't bother to realloc smaller */	/* count the number of entries erased before this one */
2585	for (i = removeHere; i < line->numElements - 1; i++)	for (j = 0; j < config->fallbackImage; j++) {
2586	line->elements[i] = line->elements[i + 1];	entry2 = findEntryByIndex(config, j);
2587		if (entry2->skip)
2588	line->numElements--;	config->fallbackImage--;
	}
	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;
2589	}	}
2590	}	}
2591
2592		void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2593		{
2594		struct singleLine *line;
2595		char *root = NULL;
2596		int i;
2597		int j;
2598
2599		printf("index=%d\n", index);
2600
2601	if (!removeArgs) {	line =
2602	oldArgs = malloc(sizeof(*oldArgs));	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2603	*oldArgs = NULL;	entry->lines);
2604	} else {	if (!line) {
2605	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	printf("non linux entry\n");
2606	fprintf(stderr,	return;
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2607	}	}
	}
2608
2609		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2610		printf("kernel=%s\n", line->elements[1].item);
2611		else
2612		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2613
2614	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	if (line->numElements >= 3) {
2615	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	printf("args=\"");
2616		i = 2;
2617		while (i < line->numElements) {
2618		if (!strncmp(line->elements[i].item, "root=", 5)) {
2619		root = line->elements[i].item + 5;
2620		} else {
2621		printf("%s%s", line->elements[i].item,
2622		line->elements[i].indent);
2623		}
2624
2625	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	i++;
2626	&& !multibootArgs);	}
2627		printf("\"\n");
2628		} else {
2629		line = getLineByType(LT_KERNELARGS, entry->lines);
2630		if (line) {
2631		char *s;
2632
2633		printf("args=\"");
2634		i = 1;
2635		while (i < line->numElements) {
2636		if (!strncmp
2637		(line->elements[i].item, "root=", 5)) {
2638		root = line->elements[i].item + 5;
2639		} else {
2640		s = line->elements[i].item;
2641
2642	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	printf("%s%s", s,
2643		line->elements[i].indent);
2644		}
2645
2646	if (multibootArgs && !entry->multiboot)	i++;
2647	continue;	}
2648
2649	/* Determine where to put the args.  If this config supports	s = line->elements[i - 1].indent;
2650	* LT_KERNELARGS, use that.  Otherwise use	printf("\"\n");
2651	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	}
	*/
	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;
2652	}	}
2653
2654	/* handle the elilo case which does:	if (!root) {
2655	*   append="hypervisor args -- kernel args"	line = getLineByType(LT_ROOT, entry->lines);
2656	*/	if (line && line->numElements >= 2)
2657	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	root = line->elements[1].item;
2658	/* this is a multiboot entry, make sure there's	}
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
	if (i < line->numElements && doreplace) {
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
2659
2660	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	if (root) {
2661	/* root= replacement */	char *s = alloca(strlen(root) + 1);
	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);
	}
	}
2662
2663	else {	strcpy(s, root);
2664	/* insert/append */	if (s[strlen(s) - 1] == '"')
2665	insertElement(line, *arg, i, cfg->cfi);	s[strlen(s) - 1] = '\0';
2666	usedElements = realloc(usedElements, line->numElements *	/* make sure the root doesn't have a trailing " */
2667	sizeof(*usedElements));	printf("root=%s\n", s);
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
2668	}	}
	}
2669
2670	free(newArgs);	line =
2671	free(oldArgs);	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2672		entry->lines);
2673
2674	return 0;	if (line && line->numElements >= 2) {
2675	}	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2676		printf("initrd=");
2677		else
2678		printf("initrd=%s", prefix);
2679
2680	int updateImage(struct grubConfig * cfg, const char * image,	for (i = 1; i < line->numElements; i++)
2681	const char * prefix, const char * addArgs,	printf("%s%s", line->elements[i].item,
2682	const char * removeArgs,	line->elements[i].indent);
2683	const char * addMBArgs, const char * removeMBArgs) {	printf("\n");
	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)
	return 1;
2684	}	}
2685
2686	break;	line = getLineByType(LT_TITLE, entry->lines);
2687	}	if (line) {
2688		printf("title=%s\n", line->elements[1].item);
2689		} else {
2690		char *title;
2691		line = getLineByType(LT_MENUENTRY, entry->lines);
2692		if (line) {
2693		title = grub2ExtractTitle(line);
2694		if (title)
2695		printf("title=%s\n", title);
2696		}
2697		}
2698
2699	return 0;	for (j = 0, line = entry->lines; line; line = line->next) {
2700		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2701		if (!strncmp
2702		(prefix, line->elements[1].item, strlen(prefix)))
2703		printf("mbmodule%d=", j);
2704		else
2705		printf("mbmodule%d=%s", j, prefix);
2706
2707		for (i = 1; i < line->numElements; i++)
2708		printf("%s%s", line->elements[i].item,
2709		line->elements[i].indent);
2710		printf("\n");
2711		j++;
2712		}
2713		}
2714	}	}
2715
2716	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	int isSuseSystem(void)
2717	int fd;	{
2718	unsigned char bootSect[512];	const char *path;
2719	int offset;	const static char default_path[] = "/etc/SuSE-release";
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2720
2721	if (read(fd, bootSect, 512) != 512) {	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2722	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	path = default_path;
	device, strerror(errno));
	return 1;
	}
	close(fd);
2723
2724	/* first three bytes should match, a jmp short should be in there */	if (!access(path, R_OK))
2725	if (memcmp(boot, bootSect, 3))	return 1;
2726	return 0;	return 0;
2727		}
2728
2729	if (boot[1] == JMP_SHORT_OPCODE) {	int isSuseGrubConf(const char *path)
2730	offset = boot[2] + 2;	{
2731	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	FILE *grubConf;
2732	offset = (boot[3] << 8) + boot[2] + 2;	char *line = NULL;
2733	} else if (boot[0] == JMP_SHORT_OPCODE) {	size_t len = 0, res = 0;
2734	offset = boot[1] + 2;
2735	/*	grubConf = fopen(path, "r");
2736	* it looks like grub, when copying stage1 into the mbr, patches stage1	if (!grubConf) {
2737	* right after the JMP location, replacing other instructions such as	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2738	* JMPs for NOOPs. So, relax the check a little bit by skipping those	path);
2739	* different bytes.	return 0;
2740	*/	}
2741	if ((bootSect[offset + 1] == NOOP_OPCODE)
2742	&& (bootSect[offset + 2] == NOOP_OPCODE)) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2743	offset = offset + 3;	if (!strncmp(line, "setup", 5)) {
2744	}	fclose(grubConf);
2745	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {	free(line);
2746	offset = (boot[2] << 8) + boot[1] + 2;	return 1;
2747	} else {	}
2748	return 0;	}
	}
2749
2750	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2751	return 0;	path);
2752
2753	return 2;	fclose(grubConf);
2754		free(line);
2755		return 0;
2756	}	}
2757
2758	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2759	int fd;	{
2760	char buf[65536];	FILE *grubConf;
2761	char * end;	char *line = NULL;
2762	char * chptr;	size_t res = 0, len = 0;
	char * chptr2;
	int rc;
2763
2764	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (!path)
2765	*raw* devices listed in there */	return 1;
2766		if (!lbaPtr)
2767		return 1;
2768
2769	if (!strncmp(mdDev, "/dev/", 5))	grubConf = fopen(path, "r");
2770	mdDev += 5;	if (!grubConf)
2771		return 1;
2772
2773	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2774	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	if (line[res - 1] == '\n')
2775	strerror(errno));	line[res - 1] = '\0';
2776	return 2;	else if (len > res)
2777	}	line[res] = '\0';
2778		else {
2779		line = realloc(line, res + 1);
2780		line[res] = '\0';
2781		}
2782
2783	rc = read(fd, buf, sizeof(buf) - 1);	if (!strncmp(line, "setup", 5)) {
2784	if (rc < 0 || rc == (sizeof(buf) - 1)) {	if (strstr(line, "--force-lba")) {
2785	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	*lbaPtr = 1;
2786	strerror(errno));	} else {
2787	close(fd);	*lbaPtr = 0;
2788	return 2;	}
2789	}	dbgPrintf("lba: %i\n", *lbaPtr);
2790	close(fd);	break;
2791	buf[rc] = '\0';	}
2792		}
2793
2794	chptr = buf;	free(line);
2795	while (*chptr) {	fclose(grubConf);
2796	end = strchr(chptr, '\n');	return 0;
2797	if (!end) break;	}
	*end = '\0';
2798
2799	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2800	chptr[strlen(mdDev)] == ' ') {	{
2801		FILE *grubConf;
2802		char *line = NULL;
2803		size_t res = 0, len = 0;
2804		char *lastParamPtr = NULL;
2805		char *secLastParamPtr = NULL;
2806		char installDeviceNumber = '\0';
2807		char *bounds = NULL;
2808
2809	/* found the device */	if (!path)
2810	while (*chptr && *chptr != ':') chptr++;	return 1;
2811	chptr++;	if (!devicePtr)
2812	while (*chptr && isspace(*chptr)) chptr++;	return 1;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
2813
2814	/*  we're good to go */	grubConf = fopen(path, "r");
2815	return 2;	if (!grubConf)
2816	}	return 1;
2817
2818	chptr = end + 1;	while ((res = getline(&line, &len, grubConf)) != -1) {
2819	}	if (strncmp(line, "setup", 5))
2820		continue;
2821
2822		if (line[res - 1] == '\n')
2823		line[res - 1] = '\0';
2824		else if (len > res)
2825		line[res] = '\0';
2826		else {
2827		line = realloc(line, res + 1);
2828		line[res] = '\0';
2829		}
2830
2831	fprintf(stderr,	lastParamPtr = bounds = line + res;
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
	}
2832
2833	int checkForLilo(struct grubConfig * config) {	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2834	int fd;	while (!isspace(*lastParamPtr))
2835	unsigned char boot[512];	lastParamPtr--;
2836	struct singleLine * line;	lastParamPtr++;
2837
2838	for (line = config->theLines; line; line = line->next)	secLastParamPtr = lastParamPtr - 2;
2839	if (line->type == LT_BOOT) break;	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2840
2841	if (!line) {	if (lastParamPtr + 3 > bounds) {
2842	fprintf(stderr,	dbgPrintf("lastParamPtr going over boundary");
2843	_("grubby: no boot line found in lilo configuration\n"));	fclose(grubConf);
2844	return 1;	free(line);
2845	}	return 1;
2846		}
2847		if (!strncmp(lastParamPtr, "(hd", 3))
2848		lastParamPtr += 3;
2849		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2850
2851		/*
2852		* Second last parameter will decide wether last parameter is
2853		* an IMAGE_DEVICE or INSTALL_DEVICE
2854		*/
2855		while (!isspace(*secLastParamPtr))
2856		secLastParamPtr--;
2857		secLastParamPtr++;
2858
2859		if (secLastParamPtr + 3 > bounds) {
2860		dbgPrintf("secLastParamPtr going over boundary");
2861		fclose(grubConf);
2862		free(line);
2863		return 1;
2864		}
2865		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2866		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2867		secLastParamPtr += 3;
2868		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2869		installDeviceNumber = *secLastParamPtr;
2870		} else {
2871		installDeviceNumber = *lastParamPtr;
2872		}
2873
2874	if (line->numElements != 2) return 1;	*devicePtr = malloc(6);
2875		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2876		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2877		fclose(grubConf);
2878		free(line);
2879		return 0;
2880		}
2881
2882	fd = open("/boot/boot.b", O_RDONLY);	free(line);
2883	if (fd < 0) {	fclose(grubConf);
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	"/boot/boot.b", strerror(errno));
2884	return 1;	return 1;
2885	}	}
2886
2887	if (read(fd, boot, 512) != 512) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2888	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2889	"/boot/boot.b", strerror(errno));	FILE *deviceMap;
2890	return 1;	char *line = NULL;
2891	}	size_t res = 0, len = 0;
2892	close(fd);	char *devicePtr;
2893		char *bounds = NULL;
2894		const char *path;
2895		const static char default_path[] = "/boot/grub/device.map";
2896
2897	if (!strncmp("/dev/md", line->elements[1].item, 7))	if (!device)
2898	return checkLiloOnRaid(line->elements[1].item, boot);	return 1;
2899		if (!bootPtr)
2900		return 1;
2901
2902	return checkDeviceBootloader(line->elements[1].item, boot);	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2903	}	path = default_path;
2904
2905	int checkForGrub2(struct grubConfig * config) {	dbgPrintf("opening grub device.map file from: %s\n", path);
2906	if (!access("/etc/grub.d/", R_OK))	deviceMap = fopen(path, "r");
2907	return 2;	if (!deviceMap)
2908		return 1;
2909
2910	return 1;	while ((res = getline(&line, &len, deviceMap)) != -1) {
2911	}	if (!strncmp(line, "#", 1))
2912		continue;
2913
2914		if (line[res - 1] == '\n')
2915		line[res - 1] = '\0';
2916		else if (len > res)
2917		line[res] = '\0';
2918		else {
2919		line = realloc(line, res + 1);
2920		line[res] = '\0';
2921		}
2922
2923	int checkForGrub(struct grubConfig * config) {	devicePtr = line;
2924	int fd;	bounds = line + res;
	unsigned char bootSect[512];
	char * boot;
2925
2926	if (parseSysconfigGrub(NULL, &boot))	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2927	return 0;	devicePtr++;
2928		dbgPrintf("device: %s\n", devicePtr);
2929
2930		if (!strncmp(devicePtr, device, strlen(device))) {
2931		devicePtr += strlen(device);
2932		while (isspace(*devicePtr)
2933		&& ((devicePtr + 1) <= bounds))
2934		devicePtr++;
2935
2936	/* assume grub is not installed -- not an error condition */	*bootPtr = strdup(devicePtr);
2937	if (!boot)	break;
2938	return 0;	}
2939		}
2940
2941	fd = open("/boot/grub/stage1", O_RDONLY);	free(line);
2942	if (fd < 0)	fclose(deviceMap);
	/* this doesn't exist if grub hasn't been installed */
2943	return 0;	return 0;
2944		}
2945
2946	if (read(fd, bootSect, 512) != 512) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
2947	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2948	"/boot/grub/stage1", strerror(errno));	char *grubDevice;
	close(fd);
	return 1;
	}
	close(fd);
2949
2950	return checkDeviceBootloader(boot, bootSect);	if (suseGrubConfGetInstallDevice(path, &grubDevice))
2951		dbgPrintf("error looking for grub installation device\n");
2952		else
2953		dbgPrintf("grubby installation device: %s\n", grubDevice);
2954
2955		if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
2956		dbgPrintf("error looking for grub boot device\n");
2957		else
2958		dbgPrintf("grubby boot device: %s\n", *bootPtr);
2959
2960		free(grubDevice);
2961		return 0;
2962	}	}
2963
2964	int checkForExtLinux(struct grubConfig * config) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
2965	int fd;	{
2966	unsigned char bootSect[512];	/*
2967	char * boot;	* This SuSE grub configuration file at this location is not your
2968	char executable[] = "/boot/extlinux/extlinux";	* average grub configuration file, but instead the grub commands
2969		* used to setup grub on that system.
2970		*/
2971		const char *path;
2972		const static char default_path[] = "/etc/grub.conf";
2973
2974	printf("entered: checkForExtLinux()\n");	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
2975		path = default_path;
2976
2977	if (parseSysconfigGrub(NULL, &boot))	if (!isSuseGrubConf(path))
2978	return 0;	return 1;
2979
2980	/* assume grub is not installed -- not an error condition */	if (lbaPtr) {
2981	if (!boot)	*lbaPtr = 0;
2982	return 0;	if (suseGrubConfGetLba(path, lbaPtr))
2983		return 1;
2984		}
2985
2986		if (bootPtr) {
2987		*bootPtr = NULL;
2988		suseGrubConfGetBoot(path, bootPtr);
2989		}
2990
	fd = open(executable, O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
2991	return 0;	return 0;
2992		}
2993
2994	if (read(fd, bootSect, 512) != 512) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
2995	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2996	executable, strerror(errno));	FILE *in;
2997	return 1;	char buf[1024];
2998	}	char *chptr;
2999	close(fd);	char *start;
3000		char *param;
3001
3002	return checkDeviceBootloader(boot, bootSect);	in = fopen("/etc/sysconfig/grub", "r");
3003	}	if (!in)
3004		return 1;
3005
3006		if (lbaPtr)
3007		*lbaPtr = 0;
3008		if (bootPtr)
3009		*bootPtr = NULL;
3010
3011		while (fgets(buf, sizeof(buf), in)) {
3012		start = buf;
3013		while (isspace(*start))
3014		start++;
3015		if (*start == '#')
3016		continue;
3017
3018		chptr = strchr(start, '=');
3019		if (!chptr)
3020		continue;
3021		chptr--;
3022		while (*chptr && isspace(*chptr))
3023		chptr--;
3024		chptr++;
3025		*chptr = '\0';
3026
3027		param = chptr + 1;
3028		while (*param && isspace(*param))
3029		param++;
3030		if (*param == '=') {
3031		param++;
3032		while (*param && isspace(*param))
3033		param++;
3034		}
3035
3036		chptr = param;
3037		while (*chptr && !isspace(*chptr))
3038		chptr++;
3039		*chptr = '\0';
3040
3041		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3042		*lbaPtr = 1;
3043		else if (!strcmp(start, "boot") && bootPtr)
3044		*bootPtr = strdup(param);
3045		}
3046
3047	static char * getRootSpecifier(char * str) {	fclose(in);
	char * idx, * rootspec = NULL;
3048
3049	if (*str == '(') {	return 0;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
3050	}	}
3051
3052	static char * getInitrdVal(struct grubConfig * config,	void dumpSysconfigGrub(void)
3053	const char * prefix, struct singleLine *tmplLine,	{
3054	const char * newKernelInitrd,	char *boot = NULL;
3055	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;
	}
3056
3057	initrdVal = end = malloc(totalSize);	if (isSuseSystem()) {
3058		if (parseSuseGrubConf(&lba, &boot)) {
3059		free(boot);
3060		return;
3061		}
3062		} else {
3063		if (parseSysconfigGrub(&lba, &boot)) {
3064		free(boot);
3065		return;
3066		}
3067		}
3068
3069	end = stpcpy (end, newKernelInitrd + prefixLen);	if (lba)
3070		printf("lba\n");
3071		if (boot) {
3072		printf("boot=%s\n", boot);
3073		free(boot);
3074		}
3075		}
3076
3077	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3078	for (i = 0; i < extraInitrdCount; i++) {	{
3079	const char *extraInitrd;	int i = 0;
3080	int j;	struct singleEntry *entry;
3081		struct singleLine *line;
3082
3083		entry = findEntryByPath(config, kernel, prefix, &i);
3084		if (!entry) {
3085		fprintf(stderr, _("grubby: kernel not found\n"));
3086		return 1;
3087		}
3088
3089	extraInitrd = extraInitrds[i] + prefixLen;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3090	/* Don't add entries that are already there */	be a better way */
3091	if (tmplLine != NULL) {	if (config->cfi == &grubConfigType) {
3092	for (j = 2; j < tmplLine->numElements; j++)	dumpSysconfigGrub();
3093	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	} else {
3094	break;	line = getLineByType(LT_BOOT, config->theLines);
3095		if (line && line->numElements >= 1) {
3096		printf("boot=%s\n", line->elements[1].item);
3097		}
3098
3099	if (j != tmplLine->numElements)	line = getLineByType(LT_LBA, config->theLines);
3100	continue;	if (line)
3101		printf("lba\n");
3102	}	}
3103
3104	*end++ = separatorChar;	displayEntry(entry, prefix, i);
3105	end = stpcpy(end, extraInitrd);
3106	}	i++;
3107		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3108		displayEntry(entry, prefix, i);
3109		i++;
3110		}
3111
3112	return initrdVal;	return 0;
3113	}	}
3114
3115	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3116	const char * prefix,	struct singleLine *tmplLine,
3117	char * newKernelPath, char * newKernelTitle,	struct singleLine *prevLine,
3118	char * newKernelArgs, char * newKernelInitrd,	const char *val, struct configFileInfo *cfi)
3119	char ** extraInitrds, int extraInitrdCount,	{
3120	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;
3121
3122	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (isEfi && cfi == &grub2ConfigType) {
3123	while (findEntryByPath(config, buf, NULL, NULL)) {	enum lineType_e old = newLine->type;
3124	sprintf(numBuf, "%d", i++);	newLine->type = preferredLineType(newLine->type, cfi);
3125	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	if (old != newLine->type)
3126		newLine->elements[0].item =
3127		getKeyByType(newLine->type, cfi);
3128	}	}
3129
3130	newKernelTitle = buf + 6;	if (val) {
3131	}	/* override the inherited value with our own.
3132		* This is a little weak because it only applies to elements[1]
3133		*/
3134		if (newLine->numElements > 1)
3135		removeElement(newLine, 1);
3136		insertElement(newLine, val, 1, cfi);
3137
3138		/* but try to keep the rootspec from the template... sigh */
3139		if (tmplLine->
3140		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3141		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3142		LT_INITRD_16)) {
3143		char *rootspec =
3144		getRootSpecifier(tmplLine->elements[1].item);
3145		if (rootspec != NULL) {
3146		free(newLine->elements[1].item);
3147		newLine->elements[1].item =
3148		sdupprintf("%s%s", rootspec, val);
3149		}
3150		}
3151		}
3152
3153	new = malloc(sizeof(*new));	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3154	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;
	}
3155
3156	if (template) {	if (!entry->lines) {
3157	for (masterLine = template->lines;	/* first one on the list */
3158	masterLine && (tmplLine = lineDup(masterLine));	entry->lines = newLine;
3159	lineFree(tmplLine), masterLine = masterLine->next)	} else if (prevLine) {
3160	{	/* add after prevLine */
3161	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	newLine->next = prevLine->next;
3162		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);
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, "'Loading Linux ")) {
	char *prefix = "'Loading ";
	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);
	}
3163	}	}
3164
3165	} else {	return newLine;
3166	/* don't have a template, so start the entry with the	}
3167	* appropriate starting line
3168		/* val may be NULL */
3169		struct singleLine *addLine(struct singleEntry *entry,
3170		struct configFileInfo *cfi,
3171		enum lineType_e type, char *defaultIndent,
3172		const char *val)
3173		{
3174		struct singleLine *line, *prev;
3175		struct keywordTypes *kw;
3176		struct singleLine tmpl;
3177
3178		/* NB: This function shouldn't allocate items on the heap, rather on
3179		* the stack since it calls addLineTmpl which will make copies.
3180	*/	*/
3181	switch (config->cfi->entryStart) {	if (type == LT_TITLE && cfi->titleBracketed) {
3182	case LT_KERNEL:	/* we're doing a bracketed title (zipl) */
3183	if (new->multiboot && config->cfi->mbHyperFirst) {	tmpl.type = type;
3184	/* fall through to LT_HYPER */	tmpl.numElements = 1;
3185	} else {	tmpl.elements = alloca(sizeof(*tmpl.elements));
3186	newLine = addLine(new, config->cfi, LT_KERNEL,	tmpl.elements[0].item = alloca(strlen(val) + 3);
3187	config->primaryIndent,	sprintf(tmpl.elements[0].item, "[%s]", val);
3188	newKernelPath + strlen(prefix));	tmpl.elements[0].indent = "";
3189	needs &= ~NEED_KERNEL;	val = NULL;
3190	break;	} else if (type == LT_MENUENTRY) {
3191		char *lineend = "--class gnu-linux --class gnu --class os {";
3192		if (!val) {
3193		fprintf(stderr,
3194		"Line type LT_MENUENTRY requires a value\n");
3195		abort();
3196		}
3197		kw = getKeywordByType(type, cfi);
3198		if (!kw) {
3199		fprintf(stderr,
3200		"Looking up keyword for unknown type %d\n",
3201		type);
3202		abort();
3203		}
3204		tmpl.indent = "";
3205		tmpl.type = type;
3206		tmpl.numElements = 3;
3207		tmpl.elements =
3208		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3209		tmpl.elements[0].item = kw->key;
3210		tmpl.elements[0].indent = alloca(2);
3211		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3212		tmpl.elements[1].item = (char *)val;
3213		tmpl.elements[1].indent = alloca(2);
3214		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3215		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3216		strcpy(tmpl.elements[2].item, lineend);
3217		tmpl.elements[2].indent = "";
3218		} else {
3219		kw = getKeywordByType(type, cfi);
3220		if (!kw) {
3221		fprintf(stderr,
3222		"Looking up keyword for unknown type %d\n",
3223		type);
3224		abort();
3225		}
3226		tmpl.type = type;
3227		tmpl.numElements = val ? 2 : 1;
3228		tmpl.elements =
3229		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3230		tmpl.elements[0].item = kw->key;
3231		tmpl.elements[0].indent = alloca(2);
3232		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3233		if (val) {
3234		tmpl.elements[1].item = (char *)val;
3235		tmpl.elements[1].indent = "";
3236	}	}
3237		}
3238
3239	case LT_HYPER:	/* The last non-empty line gives us the indention to us and the line
3240	newLine = addLine(new, config->cfi, LT_HYPER,	* to insert after. Note that comments are considered empty lines,
3241	config->primaryIndent,	* which may not be ideal? If there are no lines or we are looking at
3242	newMBKernel + strlen(prefix));	* the first line, we use defaultIndent (the first line is normally
3243	needs &= ~NEED_MB;	* indented differently from the rest) */
3244	break;	for (line = entry->lines, prev = NULL; line; line = line->next) {
3245		if (line->numElements)
3246		prev = line;
3247		/* fall back on the last line if prev isn't otherwise set */
3248		if (!line->next && !prev)
3249		prev = line;
3250		}
3251
3252		struct singleLine *menuEntry;
3253		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3254		if (tmpl.type == LT_ENTRY_END) {
3255		if (menuEntry)
3256		tmpl.indent = menuEntry->indent;
3257		else
3258		tmpl.indent = defaultIndent ? : "";
3259		} else if (tmpl.type != LT_MENUENTRY) {
3260		if (menuEntry)
3261		tmpl.indent = "\t";
3262		else if (prev == entry->lines)
3263		tmpl.indent = defaultIndent ? : "";
3264		else
3265		tmpl.indent = prev->indent;
3266		}
3267
3268	case LT_MENUENTRY: {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3269	char *nkt = malloc(strlen(newKernelTitle)+3);	}
3270	strcpy(nkt, "'");
3271	strcat(nkt, newKernelTitle);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3272	strcat(nkt, "'");	{
3273	newLine = addLine(new, config->cfi, LT_MENUENTRY,	struct singleLine *prev;
3274	config->primaryIndent, nkt);	int i;
3275	free(nkt);
3276	needs &= ~NEED_TITLE;	for (i = 0; i < line->numElements; i++) {
3277	needs |= NEED_END;	free(line->elements[i].item);
3278	break;	free(line->elements[i].indent);
3279	}	}
3280	case LT_TITLE:	free(line->elements);
3281	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	free(line->indent);
3282	char * templabel;
3283	int x = 0, y = 0;	if (line == entry->lines) {
3284		entry->lines = line->next;
3285	templabel = strdup(newKernelTitle);	} else {
3286	while( templabel[x]){	prev = entry->lines;
3287	if( templabel[x] == ' ' ){	while (prev->next != line)
3288	y = x;	prev = prev->next;
3289	while( templabel[y] ){	prev->next = line->next;
3290	templabel[y] = templabel[y+1];	}
3291	y++;
3292	}	free(line);
3293		}
3294
3295		static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3296		{
3297		struct singleLine newLine = {
3298		.indent = tmplLine->indent,
3299		.type = tmplLine->type,
3300		.next = tmplLine->next,
3301		};
3302		int firstQuotedItem = -1;
3303		int quoteLen = 0;
3304		int j;
3305		int element = 0;
3306		char *c;
3307
3308		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3309		strcpy(c, tmplLine->elements[0].item);
3310		insertElement(&newLine, c, element++, cfi);
3311		free(c);
3312		c = NULL;
3313
3314		for (j = 1; j < tmplLine->numElements; j++) {
3315		if (firstQuotedItem == -1) {
3316		quoteLen += strlen(tmplLine->elements[j].item);
3317
3318		if (isquote(tmplLine->elements[j].item[0])) {
3319		firstQuotedItem = j;
3320		quoteLen +=
3321		strlen(tmplLine->elements[j].indent);
3322		} else {
3323		c = malloc(quoteLen + 1);
3324		strcpy(c, tmplLine->elements[j].item);
3325		insertElement(&newLine, c, element++, cfi);
3326		free(c);
3327		quoteLen = 0;
3328		}
3329		} else {
3330		int itemlen = strlen(tmplLine->elements[j].item);
3331		quoteLen += itemlen;
3332		quoteLen += strlen(tmplLine->elements[j].indent);
3333
3334		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3335		c = malloc(quoteLen + 1);
3336		c[0] = '\0';
3337		for (int i = firstQuotedItem; i < j + 1; i++) {
3338		strcat(c, tmplLine->elements[i].item);
3339		strcat(c, tmplLine->elements[i].indent);
3340	}	}
3341	x++;	insertElement(&newLine, c, element++, cfi);
3342		free(c);
3343
3344		firstQuotedItem = -1;
3345		quoteLen = 0;
3346	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
3347	}	}
	needs &= ~NEED_TITLE;
	break;
	default:
	abort();
3348	}	}
3349	}	while (tmplLine->numElements)
3350		removeElement(tmplLine, 0);
3351		if (tmplLine->elements)
3352		free(tmplLine->elements);
3353
3354		tmplLine->numElements = newLine.numElements;
3355		tmplLine->elements = newLine.elements;
3356		}
3357
3358	/* add the remainder of the lines, i.e. those that either	static void insertElement(struct singleLine *line,
3359	* weren't present in the template, or in the case of no template,	const char *item, int insertHere,
3360	* all the lines following the entryStart.	struct configFileInfo *cfi)
3361	*/	{
3362	if (needs & NEED_TITLE) {	struct keywordTypes *kw;
3363	newLine = addLine(new, config->cfi, LT_TITLE,	char indent[2] = "";
	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;
	}
3364
3365	if (needs) {	/* sanity check */
3366	printf(_("grubby: needs=%d, aborting\n"), needs);	if (insertHere > line->numElements) {
3367	abort();	dbgPrintf
3368	}	("insertElement() adjusting insertHere from %d to %d\n",
3369		insertHere, line->numElements);
3370		insertHere = line->numElements;
3371		}
3372
3373		line->elements = realloc(line->elements, (line->numElements + 1) *
3374		sizeof(*line->elements));
3375		memmove(&line->elements[insertHere + 1],
3376		&line->elements[insertHere],
3377		(line->numElements - insertHere) * sizeof(*line->elements));
3378		line->elements[insertHere].item = strdup(item);
3379
3380		kw = getKeywordByType(line->type, cfi);
3381
3382		if (line->numElements == 0) {
3383		indent[0] = '\0';
3384		} else if (insertHere == 0) {
3385		indent[0] = kw->nextChar;
3386		} else if (kw->separatorChar != '\0') {
3387		indent[0] = kw->separatorChar;
3388		} else {
3389		indent[0] = ' ';
3390		}
3391
3392		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3393		/* move the end-of-line forward */
3394		line->elements[insertHere].indent =
3395		line->elements[insertHere - 1].indent;
3396		line->elements[insertHere - 1].indent = strdup(indent);
3397		} else {
3398		line->elements[insertHere].indent = strdup(indent);
3399		}
3400
3401	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	line->numElements++;
	newMBKernelArgs, NULL)) return 1;
3402
3403	return 0;	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3404		line->elements[0].item,
3405		line->elements[insertHere].item,
3406		line->elements[insertHere].indent, insertHere);
3407	}	}
3408
3409	static void traceback(int signum)	static void removeElement(struct singleLine *line, int removeHere)
3410	{	{
3411	void *array[40];	int i;
	size_t size;
3412
3413	signal(SIGSEGV, SIG_DFL);	/* sanity check */
3414	memset(array, '\0', sizeof (array));	if (removeHere >= line->numElements)
3415	size = backtrace(array, 40);	return;
3416
3417	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3418	(unsigned long)size);	removeHere, line->elements[removeHere].item);
3419	backtrace_symbols_fd(array, size, STDERR_FILENO);
3420	exit(1);	free(line->elements[removeHere].item);
3421	}
3422		if (removeHere > 1) {
3423	int main(int argc, const char ** argv) {	/* previous argument gets this argument's post-indentation */
3424	poptContext optCon;	free(line->elements[removeHere - 1].indent);
3425	const char * grubConfig = NULL;	line->elements[removeHere - 1].indent =
3426	char * outputFile = NULL;	line->elements[removeHere].indent;
3427	int arg = 0;	} else {
3428	int flags = 0;	free(line->elements[removeHere].indent);
	int badImageOkay = 0;
	int configureGrub2 = 0;
	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
	int configureExtLinux = 0;
	int bootloaderProbe = 0;
	int extraInitrdCount = 0;
	char * updateKernelPath = NULL;
	char * newKernelPath = NULL;
	char * removeKernelPath = NULL;
	char * newKernelArgs = NULL;
	char * newKernelInitrd = NULL;
	char * newKernelTitle = NULL;
	char * newKernelVersion = NULL;
	char * newMBKernel = NULL;
	char * newMBKernelArgs = NULL;
	char * removeMBKernelArgs = NULL;
	char * removeMBKernel = NULL;
	char * bootPrefix = NULL;
	char * defaultKernel = NULL;
	char * removeArgs = NULL;
	char * kernelInfo = NULL;
	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
	const char * chptr = NULL;
	struct configFileInfo * cfi = NULL;
	struct grubConfig * config;
	struct singleEntry * template = NULL;
	int copyDefault = 0, makeDefault = 0;
	int displayDefault = 0;
	int displayDefaultIndex = 0;
	int displayDefaultTitle = 0;
	struct poptOption options[] = {
	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
	_("add an entry for the specified kernel"), _("kernel-path") },
	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
	_("add an entry for the specified multiboot kernel"), NULL },
	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
	#if defined(__i386__) || defined(__x86_64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check if lilo is installed on lilo.conf boot sector") },
	#endif
	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
	_("path to grub config file to update (\"-\" for stdin)"),
	_("path") },
	{ "copy-default", 0, 0, &copyDefault, 0,
	_("use the default boot entry as a template for the new entry "
	"being added; if the default is not a linux image, or if "
	"the kernel referenced by the default image does not exist, "
	"the first linux entry whose kernel does exist is used as the "
	"template"), NULL },
	{ "default-kernel", 0, 0, &displayDefault, 0,
	_("display the path of the default kernel") },
	{ "default-index", 0, 0, &displayDefaultIndex, 0,
	_("display the index of the default kernel") },
	{ "default-title", 0, 0, &displayDefaultTitle, 0,
	_("display the title of the default kernel") },
	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
	_("configure elilo bootloader") },
	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
	_("configure extlinux bootloader (from syslinux)") },
	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	optCon = poptGetContext("grubby", argc, argv, options, 0);
	poptReadDefaultConfig(optCon, 1);
	while ((arg = poptGetNextOpt(optCon)) >= 0) {
	switch (arg) {
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
	return 1;
	}
	break;
3429	}	}
	}
3430
3431	if (arg < -1) {	/* now collapse the array, but don't bother to realloc smaller */
3432	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	for (i = removeHere; i < line->numElements - 1; i++)
3433	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	line->elements[i] = line->elements[i + 1];
	poptStrerror(arg));
	return 1;
	}
3434
3435	if ((chptr = poptGetArg(optCon))) {	line->numElements--;
3436	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	}
	return 1;
	}
3437
3438	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	int argMatch(const char *one, const char *two)
3439	configureYaboot + configureSilo + configureZipl +	{
3440	configureExtLinux ) > 1) {	char *first, *second;
3441	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	char *chptr;
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureGrub2) {
	cfi = &grub2ConfigType;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
3442
3443	if (!cfi) {	first = strcpy(alloca(strlen(one) + 1), one);
3444	#ifdef __ia64__	second = strcpy(alloca(strlen(two) + 1), two);
	cfi = &eliloConfigType;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	if (grub2FindConfig(&grub2ConfigType))
	cfi = &grub2ConfigType;
	else
	cfi = &grubConfigType;
	#endif
	}
3445
3446	if (!grubConfig) {	chptr = strchr(first, '=');
3447	if (cfi->findConfig)	if (chptr)
3448	grubConfig = cfi->findConfig(cfi);	*chptr = '\0';
	if (!grubConfig)
	grubConfig = cfi->defaultConfig;
	}
3449
3450	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	chptr = strchr(second, '=');
3451	newKernelPath || removeKernelPath || makeDefault ||	if (chptr)
3452	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	*chptr = '\0';
	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "
	"specified option"));
	return 1;
	}
3453
3454	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	return strcmp(first, second);
3455	removeKernelPath)) {	}
	fprintf(stderr, _("grubby: --default-kernel and --info may not "
	"be used when adding or removing kernels\n"));
	return 1;
	}
3456
3457	if (newKernelPath && !newKernelTitle) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3458	fprintf(stderr, _("grubby: kernel title must be specified\n"));	const char *prefix, const char *addArgs,
3459	return 1;	const char *removeArgs, int multibootArgs)
3460	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	{
3461	(newKernelInitrd && !updateKernelPath)||	struct singleEntry *entry;
3462	makeDefault || extraInitrdCount > 0)) {	struct singleLine *line, *rootLine;
3463	fprintf(stderr, _("grubby: kernel path expected\n"));	int index = 0;
3464	return 1;	int i, k;
3465	}	const char **newArgs, **oldArgs;
3466		const char **arg;
3467		int useKernelArgs, useRoot;
3468		int firstElement;
3469		int *usedElements;
3470		int doreplace;
3471
3472		if (!image)
3473		return 0;
3474
3475		if (!addArgs) {
3476		newArgs = malloc(sizeof(*newArgs));
3477		*newArgs = NULL;
3478		} else {
3479		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3480		fprintf(stderr,
3481		_("grubby: error separating arguments '%s'\n"),
3482		addArgs);
3483		return 1;
3484		}
3485		}
3486
3487	if (newKernelPath && updateKernelPath) {	if (!removeArgs) {
3488	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	oldArgs = malloc(sizeof(*oldArgs));
3489	"not be used together"));	*oldArgs = NULL;
3490	return 1;	} else {
3491	}	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3492		fprintf(stderr,
3493		_("grubby: error separating arguments '%s'\n"),
3494		removeArgs);
3495		free(newArgs);
3496		return 1;
3497		}
3498		}
3499
3500		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3501		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3502
3503		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3504		&& !multibootArgs);
3505
3506		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3507
3508		if (multibootArgs && !entry->multiboot)
3509		continue;
3510
3511		/* Determine where to put the args.  If this config supports
3512		* LT_KERNELARGS, use that.  Otherwise use
3513		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3514		*/
3515		if (useKernelArgs) {
3516		line = getLineByType(LT_KERNELARGS, entry->lines);
3517		if (!line) {
3518		/* no LT_KERNELARGS, need to add it */
3519		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3520		cfg->secondaryIndent, NULL);
3521		}
3522		firstElement = 1;
3523
3524		} else if (multibootArgs) {
3525		line = getLineByType(LT_HYPER, entry->lines);
3526		if (!line) {
3527		/* a multiboot entry without LT_HYPER? */
3528		continue;
3529		}
3530		firstElement = 2;
3531
3532		} else {
3533		line =
3534		getLineByType(LT_KERNEL | LT_MBMODULE |
3535		LT_KERNEL_EFI | LT_KERNEL_16,
3536		entry->lines);
3537		if (!line) {
3538		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3539		continue;
3540		}
3541		firstElement = 2;
3542		}
3543
3544		/* handle the elilo case which does:
3545		*   append="hypervisor args -- kernel args"
3546		*/
3547		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3548		/* this is a multiboot entry, make sure there's
3549		* -- on the args line
3550		*/
3551		for (i = firstElement; i < line->numElements; i++) {
3552		if (!strcmp(line->elements[i].item, "--"))
3553		break;
3554		}
3555		if (i == line->numElements) {
3556		/* assume all existing args are kernel args,
3557		* prepend -- to make it official
3558		*/
3559		insertElement(line, "--", firstElement,
3560		cfg->cfi);
3561		i = firstElement;
3562		}
3563		if (!multibootArgs) {
3564		/* kernel args start after the -- */
3565		firstElement = i + 1;
3566		}
3567		} else if (cfg->cfi->mbConcatArgs) {
3568		/* this is a non-multiboot entry, remove hyper args */
3569		for (i = firstElement; i < line->numElements; i++) {
3570		if (!strcmp(line->elements[i].item, "--"))
3571		break;
3572		}
3573		if (i < line->numElements) {
3574		/* remove args up to -- */
3575		while (strcmp
3576		(line->elements[firstElement].item,
3577		"--"))
3578		removeElement(line, firstElement);
3579		/* remove -- */
3580		removeElement(line, firstElement);
3581		}
3582		}
3583
3584		usedElements = calloc(line->numElements, sizeof(*usedElements));
3585
3586		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3587
3588		doreplace = 1;
3589		for (i = firstElement; i < line->numElements; i++) {
3590		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3591		!strcmp(line->elements[i].item, "--")) {
3592		/* reached the end of hyper args, insert here */
3593		doreplace = 0;
3594		break;
3595		}
3596		if (usedElements[i])
3597		continue;
3598		if (!argMatch(line->elements[i].item, *arg)) {
3599		usedElements[i] = 1;
3600		break;
3601		}
3602		}
3603
3604		if (i < line->numElements && doreplace) {
3605		/* direct replacement */
3606		free(line->elements[i].item);
3607		line->elements[i].item = strdup(*arg);
3608
3609		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3610		/* root= replacement */
3611		rootLine = getLineByType(LT_ROOT, entry->lines);
3612		if (rootLine) {
3613		free(rootLine->elements[1].item);
3614		rootLine->elements[1].item =
3615		strdup(*arg + 5);
3616		} else {
3617		rootLine =
3618		addLine(entry, cfg->cfi, LT_ROOT,
3619		cfg->secondaryIndent,
3620		*arg + 5);
3621		}
3622		}
3623
3624		else {
3625		/* insert/append */
3626		insertElement(line, *arg, i, cfg->cfi);
3627		usedElements =
3628		realloc(usedElements,
3629		line->numElements *
3630		sizeof(*usedElements));
3631		memmove(&usedElements[i + 1], &usedElements[i],
3632		line->numElements - i - 1);
3633		usedElements[i] = 1;
3634
3635		/* if we updated a root= here even though
3636		* there is a LT_ROOT available we need to
3637		* remove the LT_ROOT entry (this will happen
3638		* if we switch from a device to a label) */
3639		if (useRoot && !strncmp(*arg, "root=", 5)) {
3640		rootLine =
3641		getLineByType(LT_ROOT,
3642		entry->lines);
3643		if (rootLine)
3644		removeLine(entry, rootLine);
3645		}
3646		}
3647		}
3648
3649		free(usedElements);
3650
3651		for (arg = oldArgs; *arg; arg++) {
3652		for (i = firstElement; i < line->numElements; i++) {
3653		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3654		!strcmp(line->elements[i].item, "--"))
3655		/* reached the end of hyper args, stop here */
3656		break;
3657		if (!argMatch(line->elements[i].item, *arg)) {
3658		removeElement(line, i);
3659		break;
3660		}
3661		}
3662		/* handle removing LT_ROOT line too */
3663		if (useRoot && !strncmp(*arg, "root=", 5)) {
3664		rootLine = getLineByType(LT_ROOT, entry->lines);
3665		if (rootLine)
3666		removeLine(entry, rootLine);
3667		}
3668		}
3669
3670		if (line->numElements == 1) {
3671		/* don't need the line at all (note it has to be a
3672		LT_KERNELARGS for this to happen */
3673		removeLine(entry, line);
3674		}
3675		}
3676
3677		free(newArgs);
3678		free(oldArgs);
3679
3680		return 0;
3681		}
3682
3683		int updateImage(struct grubConfig *cfg, const char *image,
3684		const char *prefix, const char *addArgs,
3685		const char *removeArgs,
3686		const char *addMBArgs, const char *removeMBArgs)
3687		{
3688		int rc = 0;
3689
3690		if (!image)
3691		return rc;
3692
3693		/* update the main args first... */
3694		if (addArgs || removeArgs)
3695		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3696		0);
3697		if (rc)
3698		return rc;
3699
3700		/* and now any multiboot args */
3701		if (addMBArgs || removeMBArgs)
3702		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3703		removeMBArgs, 1);
3704		return rc;
3705		}
3706
3707		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3708		const char *image, const char *prefix, const char *initrd,
3709		const char *title)
3710		{
3711		struct singleEntry *entry;
3712		struct singleLine *line, *kernelLine, *endLine = NULL;
3713		int index = 0;
3714
3715		if (!image)
3716		return 0;
3717
3718		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3719		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3720		if (!kernelLine)
3721		continue;
3722
3723		/* if title is supplied, the entry's title must match it. */
3724		if (title) {
3725		char *linetitle;
3726
3727		line =
3728		getLineByType(LT_TITLE | LT_MENUENTRY,
3729		entry->lines);
3730		if (!line)
3731		continue;
3732
3733		linetitle = extractTitle(cfg, line);
3734		if (!linetitle)
3735		continue;
3736		if (strcmp(title, linetitle)) {
3737		free(linetitle);
3738		continue;
3739		}
3740		free(linetitle);
3741		}
3742
3743		if (prefix) {
3744		int prefixLen = strlen(prefix);
3745		if (!strncmp(initrd, prefix, prefixLen))
3746		initrd += prefixLen;
3747		}
3748		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3749		if (endLine)
3750		removeLine(entry, endLine);
3751		line =
3752		addLine(entry, cfg->cfi,
3753		preferredLineType(LT_MBMODULE, cfg->cfi),
3754		kernelLine->indent, initrd);
3755		if (!line)
3756		return 1;
3757		if (endLine) {
3758		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3759		if (!line)
3760		return 1;
3761		}
3762
3763		break;
3764		}
3765
3766		return 0;
3767		}
3768
3769		int updateInitrd(struct grubConfig *cfg, const char *image,
3770		const char *prefix, const char *initrd, const char *title)
3771		{
3772		struct singleEntry *entry;
3773		struct singleLine *line, *kernelLine, *endLine = NULL;
3774		int index = 0;
3775
3776		if (!image)
3777		return 0;
3778
3779		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3780		kernelLine =
3781		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3782		entry->lines);
3783		if (!kernelLine)
3784		continue;
3785
3786		/* if title is supplied, the entry's title must match it. */
3787		if (title) {
3788		char *linetitle;
3789
3790		line =
3791		getLineByType(LT_TITLE | LT_MENUENTRY,
3792		entry->lines);
3793		if (!line)
3794		continue;
3795
3796		linetitle = extractTitle(cfg, line);
3797		if (!linetitle)
3798		continue;
3799		if (strcmp(title, linetitle)) {
3800		free(linetitle);
3801		continue;
3802		}
3803		free(linetitle);
3804		}
3805
3806		line =
3807		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3808		entry->lines);
3809		if (line)
3810		removeLine(entry, line);
3811		if (prefix) {
3812		int prefixLen = strlen(prefix);
3813		if (!strncmp(initrd, prefix, prefixLen))
3814		initrd += prefixLen;
3815		}
3816		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3817		if (endLine)
3818		removeLine(entry, endLine);
3819		enum lineType_e lt;
3820		switch (kernelLine->type) {
3821		case LT_KERNEL:
3822		lt = LT_INITRD;
3823		break;
3824		case LT_KERNEL_EFI:
3825		lt = LT_INITRD_EFI;
3826		break;
3827		case LT_KERNEL_16:
3828		lt = LT_INITRD_16;
3829		break;
3830		default:
3831		lt = preferredLineType(LT_INITRD, cfg->cfi);
3832		}
3833		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3834		if (!line)
3835		return 1;
3836		if (endLine) {
3837		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3838		if (!line)
3839		return 1;
3840		}
3841
3842		break;
3843		}
3844
3845		return 0;
3846		}
3847
3848		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3849		{
3850		int fd;
3851		unsigned char bootSect[512];
3852		int offset;
3853
3854		fd = open(device, O_RDONLY);
3855		if (fd < 0) {
3856		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3857		device, strerror(errno));
3858		return 1;
3859		}
3860
3861		if (read(fd, bootSect, 512) != 512) {
3862		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3863		device, strerror(errno));
3864		return 1;
3865		}
3866		close(fd);
3867
3868		/* first three bytes should match, a jmp short should be in there */
3869		if (memcmp(boot, bootSect, 3))
3870		return 0;
3871
3872		if (boot[1] == JMP_SHORT_OPCODE) {
3873		offset = boot[2] + 2;
3874		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3875		offset = (boot[3] << 8) + boot[2] + 2;
3876		} else if (boot[0] == JMP_SHORT_OPCODE) {
3877		offset = boot[1] + 2;
3878		/*
3879		* it looks like grub, when copying stage1 into the mbr,
3880		* patches stage1 right after the JMP location, replacing
3881		* other instructions such as JMPs for NOOPs. So, relax the
3882		* check a little bit by skipping those different bytes.
3883		*/
3884		if ((bootSect[offset + 1] == NOOP_OPCODE)
3885		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3886		offset = offset + 3;
3887		}
3888		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3889		offset = (boot[2] << 8) + boot[1] + 2;
3890		} else {
3891		return 0;
3892		}
3893
3894		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3895		return 0;
3896
3897		return 2;
3898		}
3899
3900		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3901		{
3902		int fd;
3903		char buf[65536];
3904		char *end;
3905		char *chptr;
3906		char *chptr2;
3907		int rc;
3908
3909		/* it's on raid; we need to parse /proc/mdstat and check all of the
3910		*raw* devices listed in there */
3911
3912		if (!strncmp(mdDev, "/dev/", 5))
3913		mdDev += 5;
3914
3915		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3916		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3917		strerror(errno));
3918		return 2;
3919		}
3920
3921		rc = read(fd, buf, sizeof(buf) - 1);
3922		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3923		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3924		strerror(errno));
3925		close(fd);
3926		return 2;
3927		}
3928		close(fd);
3929		buf[rc] = '\0';
3930
3931		chptr = buf;
3932		while (*chptr) {
3933		end = strchr(chptr, '\n');
3934		if (!end)
3935		break;
3936		*end = '\0';
3937
3938		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3939		chptr[strlen(mdDev)] == ' ') {
3940
3941		/* found the device */
3942		while (*chptr && *chptr != ':')
3943		chptr++;
3944		chptr++;
3945		while (*chptr && isspace(*chptr))
3946		chptr++;
3947
3948		/* skip the "active" bit */
3949		while (*chptr && !isspace(*chptr))
3950		chptr++;
3951		while (*chptr && isspace(*chptr))
3952		chptr++;
3953
3954		/* skip the raid level */
3955		while (*chptr && !isspace(*chptr))
3956		chptr++;
3957		while (*chptr && isspace(*chptr))
3958		chptr++;
3959
3960		/* everything else is partition stuff */
3961		while (*chptr) {
3962		chptr2 = chptr;
3963		while (*chptr2 && *chptr2 != '[')
3964		chptr2++;
3965		if (!*chptr2)
3966		break;
3967
3968		/* yank off the numbers at the end */
3969		chptr2--;
3970		while (isdigit(*chptr2) && chptr2 > chptr)
3971		chptr2--;
3972		chptr2++;
3973		*chptr2 = '\0';
3974
3975		/* Better, now we need the /dev/ back. We're
3976		* done with everything before this point, so
3977		* we can just put the /dev/ part there.
3978		* There will always be room. */
3979		memcpy(chptr - 5, "/dev/", 5);
3980		rc = checkDeviceBootloader(chptr - 5, boot);
3981		if (rc != 2) {
3982		return rc;
3983		}
3984
3985		chptr = chptr2 + 1;
3986		/* skip the [11] bit */
3987		while (*chptr && !isspace(*chptr))
3988		chptr++;
3989		/* and move to the next one */
3990		while (*chptr && isspace(*chptr))
3991		chptr++;
3992		}
3993
3994		/*  we're good to go */
3995		return 2;
3996		}
3997
3998		chptr = end + 1;
3999		}
4000
4001		fprintf(stderr,
4002		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4003		mdDev);
4004		return 0;
4005		}
4006
4007		int checkForLilo(struct grubConfig *config)
4008		{
4009		int fd;
4010		unsigned char boot[512];
4011		struct singleLine *line;
4012
4013		for (line = config->theLines; line; line = line->next)
4014		if (line->type == LT_BOOT)
4015		break;
4016
4017		if (!line) {
4018		fprintf(stderr,
4019		_
4020		("grubby: no boot line found in lilo configuration\n"));
4021		return 1;
4022		}
4023
4024		if (line->numElements != 2)
4025		return 1;
4026
4027		fd = open("/boot/boot.b", O_RDONLY);
4028		if (fd < 0) {
4029		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4030		"/boot/boot.b", strerror(errno));
4031		return 1;
4032		}
4033
4034		if (read(fd, boot, 512) != 512) {
4035		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4036		"/boot/boot.b", strerror(errno));
4037		return 1;
4038		}
4039		close(fd);
4040
4041		if (!strncmp("/dev/md", line->elements[1].item, 7))
4042		return checkLiloOnRaid(line->elements[1].item, boot);
4043
4044		return checkDeviceBootloader(line->elements[1].item, boot);
4045		}
4046
4047		int checkForGrub2(struct grubConfig *config)
4048		{
4049		if (!access("/etc/grub.d/", R_OK))
4050		return 2;
4051
	if (makeDefault && defaultKernel) {
	fprintf(stderr, _("grubby: --make-default and --default-kernel "
	"may not be used together\n"));
	return 1;
	} else if (defaultKernel && removeKernelPath &&
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
4052	return 1;	return 1;
4053	} else if (defaultKernel && newKernelPath &&	}
4054	!strcmp(defaultKernel, newKernelPath)) {
4055	makeDefault = 1;	int checkForGrub(struct grubConfig *config)
4056	defaultKernel = NULL;	{
4057	}	int fd;
4058		unsigned char bootSect[512];
4059		char *boot;
4060		int onSuse = isSuseSystem();
4061
4062		if (onSuse) {
4063		if (parseSuseGrubConf(NULL, &boot))
4064		return 0;
4065		} else {
4066		if (parseSysconfigGrub(NULL, &boot))
4067		return 0;
4068		}
4069
4070		/* assume grub is not installed -- not an error condition */
4071		if (!boot)
4072		return 0;
4073
4074		fd = open("/boot/grub/stage1", O_RDONLY);
4075		if (fd < 0)
4076		/* this doesn't exist if grub hasn't been installed */
4077		return 0;
4078
4079		if (read(fd, bootSect, 512) != 512) {
4080		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4081		"/boot/grub/stage1", strerror(errno));
4082		close(fd);
4083		return 1;
4084		}
4085		close(fd);
4086
4087		/* The more elaborate checks do not work on SuSE. The checks done
4088		* seem to be reasonble (at least for now), so just return success
4089		*/
4090		if (onSuse)
4091		return 2;
4092
4093		return checkDeviceBootloader(boot, bootSect);
4094		}
4095
4096		int checkForExtLinux(struct grubConfig *config)
4097		{
4098		int fd;
4099		unsigned char bootSect[512];
4100		char *boot;
4101		char executable[] = "/boot/extlinux/extlinux";
4102
4103		printf("entered: checkForExtLinux()\n");
4104
4105		if (parseSysconfigGrub(NULL, &boot))
4106		return 0;
4107
4108		/* assume grub is not installed -- not an error condition */
4109		if (!boot)
4110		return 0;
4111
4112		fd = open(executable, O_RDONLY);
4113		if (fd < 0)
4114		/* this doesn't exist if grub hasn't been installed */
4115		return 0;
4116
4117		if (read(fd, bootSect, 512) != 512) {
4118		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4119		executable, strerror(errno));
4120		return 1;
4121		}
4122		close(fd);
4123
4124		return checkDeviceBootloader(boot, bootSect);
4125		}
4126
4127		int checkForYaboot(struct grubConfig *config)
4128		{
4129		/*
4130		* This is a simplistic check that we consider good enough for own puporses
4131		*
4132		* If we were to properly check if yaboot is *installed* we'd need to:
4133		* 1) get the system boot device (LT_BOOT)
4134		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4135		*    the content on the boot device
4136		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4137		* 4) check again if binary and boot device contents match
4138		*/
4139		if (!access("/etc/yaboot.conf", R_OK))
4140		return 2;
4141
	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
	fprintf(stderr, _("grubby: output file must be specified if stdin "
	"is used\n"));
4142	return 1;	return 1;
4143	}	}
4144
4145		int checkForElilo(struct grubConfig *config)
4146		{
4147		if (!access("/etc/elilo.conf", R_OK))
4148		return 2;
4149
	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel
	&& !kernelInfo && !bootloaderProbe && !updateKernelPath
	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {
	fprintf(stderr, _("grubby: no action specified\n"));
4150	return 1;	return 1;
4151	}	}
4152
4153	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	static char *getRootSpecifier(char *str)
4154		{
4155		char *idx, *rootspec = NULL;
4156
4157	if (cfi->needsBootPrefix) {	if (*str == '(') {
4158	if (!bootPrefix) {	idx = rootspec = strdup(str);
4159	bootPrefix = findBootPrefix();	while (*idx && (*idx != ')') && (!isspace(*idx)))
4160	if (!bootPrefix) return 1;	idx++;
4161	} else {	*(++idx) = '\0';
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
4162	}	}
4163	} else {	return rootspec;
4164	bootPrefix = "";	}
	}
4165
4166	if (!cfi->mbAllowExtraInitRds &&	static char *getInitrdVal(struct grubConfig *config,
4167	extraInitrdCount > 0) {	const char *prefix, struct singleLine *tmplLine,
4168	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	const char *newKernelInitrd,
4169	return 1;	const char **extraInitrds, int extraInitrdCount)
4170	}	{
4171		char *initrdVal, *end;
4172		int i;
4173		size_t totalSize;
4174		size_t prefixLen;
4175		char separatorChar;
4176
4177		prefixLen = strlen(prefix);
4178		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4179
4180		for (i = 0; i < extraInitrdCount; i++) {
4181		totalSize += sizeof(separatorChar);
4182		totalSize += strlen(extraInitrds[i]) - prefixLen;
4183		}
4184
4185		initrdVal = end = malloc(totalSize);
4186
4187		end = stpcpy(end, newKernelInitrd + prefixLen);
4188
4189		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4190		for (i = 0; i < extraInitrdCount; i++) {
4191		const char *extraInitrd;
4192		int j;
4193
4194		extraInitrd = extraInitrds[i] + prefixLen;
4195		/* Don't add entries that are already there */
4196		if (tmplLine != NULL) {
4197		for (j = 2; j < tmplLine->numElements; j++)
4198		if (strcmp
4199		(extraInitrd,
4200		tmplLine->elements[j].item) == 0)
4201		break;
4202
4203	if (bootloaderProbe) {	if (j != tmplLine->numElements)
4204	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	continue;
4205	struct grubConfig * lconfig, * gconfig;	}
	const char *grub2config = grub2FindConfig(&grub2ConfigType);
	if (grub2config) {
	gconfig = readConfig(grub2config, &grub2ConfigType);
	if (!gconfig)
	gr2c = 1;
	else
	gr2c = checkForGrub2(gconfig);
	}
	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");
4206
4207	return 0;	*end++ = separatorChar;
4208	}	end = stpcpy(end, extraInitrd);
4209		}
4210
4211		return initrdVal;
4212		}
4213
4214	config = readConfig(grubConfig, cfi);	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4215	if (!config) return 1;	const char *prefix,
4216		const char *newKernelPath, const char *newKernelTitle,
4217		const char *newKernelArgs, const char *newKernelInitrd,
4218		const char **extraInitrds, int extraInitrdCount,
4219		const char *newMBKernel, const char *newMBKernelArgs,
4220		const char *newDevTreePath, int newIndex)
4221		{
4222		struct singleEntry *new, *entry, *prev = NULL;
4223		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4224		int needs;
4225		char *indexs;
4226		char *chptr;
4227		int rc;
4228
4229	if (displayDefault) {	if (!newKernelPath)
4230	struct singleLine * line;	return 0;
	struct singleEntry * entry;
	char * rootspec;
	if (config->defaultImage == -1) return 0;
	entry = findEntryByIndex(config, config->defaultImage);
	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));
4231
4232	return 0;	rc = asprintf(&indexs, "%d", newIndex);
4233		if (rc < 0)
4234		return 1;
4235
4236		/* if the newKernelTitle is too long silently munge it into something
4237		* we can live with. truncating is first check, then we'll just mess with
4238		* it until it looks better */
4239		if (config->cfi->maxTitleLength &&
4240		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4241		char *buf = alloca(config->cfi->maxTitleLength + 7);
4242		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4243		int i = 1;
4244
4245		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4246		newKernelTitle);
4247		while (findEntryByPath(config, buf, NULL, NULL)) {
4248		sprintf(numBuf, "%d", i++);
4249		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4250		}
4251
4252		newKernelTitle = buf + 6;
4253		}
4254
4255		new = malloc(sizeof(*new));
4256		new->skip = 0;
4257		new->multiboot = 0;
4258		new->lines = NULL;
4259		entry = config->entries;
4260		for (unsigned int i = 0; i < newIndex; i++) {
4261		if (!entry)
4262		break;
4263		prev = entry;
4264		entry = entry->next;
4265		}
4266		new->next = entry;
4267
4268		if (prev)
4269		prev->next = new;
4270		else
4271		config->entries = new;
4272
4273		/* copy/update from the template */
4274		needs = NEED_KERNEL | NEED_TITLE;
4275		if (newKernelInitrd)
4276		needs |= NEED_INITRD;
4277		if (newMBKernel) {
4278		needs |= NEED_MB;
4279		new->multiboot = 1;
4280		}
4281		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4282		needs |= NEED_DEVTREE;
4283
4284		if (template) {
4285		for (masterLine = template->lines;
4286		masterLine && (tmplLine = lineDup(masterLine));
4287		lineFree(tmplLine), masterLine = masterLine->next) {
4288		dbgPrintf("addNewKernel processing %d\n",
4289		tmplLine->type);
4290
4291		/* skip comments */
4292		chptr = tmplLine->indent;
4293		while (*chptr && isspace(*chptr))
4294		chptr++;
4295		if (*chptr == '#')
4296		continue;
4297
4298		if (iskernel(tmplLine->type)
4299		&& tmplLine->numElements >= 2) {
4300		if (!template->multiboot && (needs & NEED_MB)) {
4301		/* it's not a multiboot template and
4302		* this is the kernel line.  Try to
4303		* be intelligent about inserting the
4304		* hypervisor at the same time.
4305		*/
4306		if (config->cfi->mbHyperFirst) {
4307		/* insert the hypervisor first */
4308		newLine =
4309		addLine(new, config->cfi,
4310		LT_HYPER,
4311		tmplLine->indent,
4312		newMBKernel +
4313		strlen(prefix));
4314		/* set up for adding the
4315		* kernel line */
4316		free(tmplLine->indent);
4317		tmplLine->indent =
4318		strdup(config->
4319		secondaryIndent);
4320		needs &= ~NEED_MB;
4321		}
4322		if (needs & NEED_KERNEL) {
4323		/* use addLineTmpl to
4324		* preserve line elements,
4325		* otherwise we could just
4326		* call addLine.
4327		* Unfortunately this means
4328		* making some changes to the
4329		* template such as the
4330		* indent change above and
4331		* the type change below.
4332		*/
4333		struct keywordTypes *mbm_kw =
4334		getKeywordByType
4335		(LT_MBMODULE, config->cfi);
4336		if (mbm_kw) {
4337		tmplLine->type =
4338		LT_MBMODULE;
4339		free(tmplLine->
4340		elements[0].item);
4341		tmplLine->elements[0].
4342		item =
4343		strdup(mbm_kw->key);
4344		}
4345		newLine =
4346		addLineTmpl(new, tmplLine,
4347		newLine,
4348		newKernelPath +
4349		strlen(prefix),
4350		config->cfi);
4351		needs &= ~NEED_KERNEL;
4352		}
4353		if (needs & NEED_MB) { /* !mbHyperFirst */
4354		newLine =
4355		addLine(new, config->cfi,
4356		LT_HYPER,
4357		config->
4358		secondaryIndent,
4359		newMBKernel +
4360		strlen(prefix));
4361		needs &= ~NEED_MB;
4362		}
4363		} else if (needs & NEED_KERNEL) {
4364		newLine =
4365		addLineTmpl(new, tmplLine, newLine,
4366		newKernelPath +
4367		strlen(prefix),
4368		config->cfi);
4369		needs &= ~NEED_KERNEL;
4370		}
4371
4372		} else if (tmplLine->type == LT_HYPER &&
4373		tmplLine->numElements >= 2) {
4374		if (needs & NEED_MB) {
4375		newLine =
4376		addLineTmpl(new, tmplLine, newLine,
4377		newMBKernel +
4378		strlen(prefix),
4379		config->cfi);
4380		needs &= ~NEED_MB;
4381		}
4382
4383		} else if (tmplLine->type == LT_MBMODULE &&
4384		tmplLine->numElements >= 2) {
4385		if (new->multiboot) {
4386		if (needs & NEED_KERNEL) {
4387		newLine =
4388		addLineTmpl(new, tmplLine,
4389		newLine,
4390		newKernelPath +
4391		strlen(prefix),
4392		config->cfi);
4393		needs &= ~NEED_KERNEL;
4394		} else if (config->cfi->mbInitRdIsModule
4395		&& (needs & NEED_INITRD)) {
4396		char *initrdVal;
4397		initrdVal =
4398		getInitrdVal(config, prefix,
4399		tmplLine,
4400		newKernelInitrd,
4401		extraInitrds,
4402		extraInitrdCount);
4403		newLine =
4404		addLineTmpl(new, tmplLine,
4405		newLine,
4406		initrdVal,
4407		config->cfi);
4408		free(initrdVal);
4409		needs &= ~NEED_INITRD;
4410		}
4411		} else if (needs & NEED_KERNEL) {
4412		/* template is multi but new is not,
4413		* insert the kernel in the first
4414		* module slot
4415		*/
4416		tmplLine->type =
4417		preferredLineType(LT_KERNEL,
4418		config->cfi);
4419		free(tmplLine->elements[0].item);
4420		tmplLine->elements[0].item =
4421		strdup(getKeywordByType
4422		(tmplLine->type,
4423		config->cfi)->key);
4424		newLine =
4425		addLineTmpl(new, tmplLine, newLine,
4426		newKernelPath +
4427		strlen(prefix),
4428		config->cfi);
4429		needs &= ~NEED_KERNEL;
4430		} else if (needs & NEED_INITRD) {
4431		char *initrdVal;
4432		/* template is multi but new is not,
4433		* insert the initrd in the second
4434		* module slot
4435		*/
4436		tmplLine->type =
4437		preferredLineType(LT_INITRD,
4438		config->cfi);
4439		free(tmplLine->elements[0].item);
4440		tmplLine->elements[0].item =
4441		strdup(getKeywordByType
4442		(tmplLine->type,
4443		config->cfi)->key);
4444		initrdVal =
4445		getInitrdVal(config, prefix,
4446		tmplLine,
4447		newKernelInitrd,
4448		extraInitrds,
4449		extraInitrdCount);
4450		newLine =
4451		addLineTmpl(new, tmplLine, newLine,
4452		initrdVal, config->cfi);
4453		free(initrdVal);
4454		needs &= ~NEED_INITRD;
4455		}
4456
4457		} else if (isinitrd(tmplLine->type)
4458		&& tmplLine->numElements >= 2) {
4459		if (needs & NEED_INITRD && new->multiboot
4460		&& !template->multiboot
4461		&& config->cfi->mbInitRdIsModule) {
4462		/* make sure we don't insert the
4463		* module initrd before the module
4464		* kernel... if we don't do it here,
4465		* it will be inserted following the
4466		* template.
4467		*/
4468		if (!needs & NEED_KERNEL) {
4469		char *initrdVal;
4470
4471		initrdVal =
4472		getInitrdVal(config, prefix,
4473		tmplLine,
4474		newKernelInitrd,
4475		extraInitrds,
4476		extraInitrdCount);
4477		newLine =
4478		addLine(new, config->cfi,
4479		LT_MBMODULE,
4480		config->
4481		secondaryIndent,
4482		initrdVal);
4483		free(initrdVal);
4484		needs &= ~NEED_INITRD;
4485		}
4486		} else if (needs & NEED_INITRD) {
4487		char *initrdVal;
4488		initrdVal =
4489		getInitrdVal(config, prefix,
4490		tmplLine,
4491		newKernelInitrd,
4492		extraInitrds,
4493		extraInitrdCount);
4494		newLine =
4495		addLineTmpl(new, tmplLine, newLine,
4496		initrdVal, config->cfi);
4497		free(initrdVal);
4498		needs &= ~NEED_INITRD;
4499		}
4500
4501		} else if (tmplLine->type == LT_MENUENTRY &&
4502		(needs & NEED_TITLE)) {
4503		requote(tmplLine, config->cfi);
4504		char *nkt = malloc(strlen(newKernelTitle) + 3);
4505		strcpy(nkt, "'");
4506		strcat(nkt, newKernelTitle);
4507		strcat(nkt, "'");
4508		newLine =
4509		addLineTmpl(new, tmplLine, newLine, nkt,
4510		config->cfi);
4511		free(nkt);
4512		needs &= ~NEED_TITLE;
4513		} else if (tmplLine->type == LT_TITLE &&
4514		(needs & NEED_TITLE)) {
4515		if (tmplLine->numElements >= 2) {
4516		newLine =
4517		addLineTmpl(new, tmplLine, newLine,
4518		newKernelTitle,
4519		config->cfi);
4520		needs &= ~NEED_TITLE;
4521		} else if (tmplLine->numElements == 1 &&
4522		config->cfi->titleBracketed) {
4523		/* addLineTmpl doesn't handle
4524		* titleBracketed */
4525		newLine =
4526		addLine(new, config->cfi, LT_TITLE,
4527		tmplLine->indent,
4528		newKernelTitle);
4529		needs &= ~NEED_TITLE;
4530		}
4531		} else if (tmplLine->type == LT_ECHO) {
4532		requote(tmplLine, config->cfi);
4533		static const char *prefix = "'Loading ";
4534		if (tmplLine->numElements > 1 &&
4535		strstr(tmplLine->elements[1].item, prefix)
4536		&& masterLine->next
4537		&& iskernel(masterLine->next->type)) {
4538		char *newTitle =
4539		malloc(strlen(prefix) +
4540		strlen(newKernelTitle) + 2);
4541
4542		strcpy(newTitle, prefix);
4543		strcat(newTitle, newKernelTitle);
4544		strcat(newTitle, "'");
4545		newLine =
4546		addLine(new, config->cfi, LT_ECHO,
4547		tmplLine->indent, newTitle);
4548		free(newTitle);
4549		} else {
4550		/* pass through other lines from the
4551		* template */
4552		newLine =
4553		addLineTmpl(new, tmplLine, newLine,
4554		NULL, config->cfi);
4555		}
4556		} else if (tmplLine->type == LT_DEVTREE &&
4557		tmplLine->numElements == 2
4558		&& newDevTreePath) {
4559		newLine =
4560		addLineTmpl(new, tmplLine, newLine,
4561		newDevTreePath + strlen(prefix),
4562		config->cfi);
4563		needs &= ~NEED_DEVTREE;
4564		} else if (tmplLine->type == LT_ENTRY_END
4565		&& needs & NEED_DEVTREE) {
4566		const char *ndtp = newDevTreePath;
4567		if (!strncmp
4568		(newDevTreePath, prefix, strlen(prefix)))
4569		ndtp += strlen(prefix);
4570		newLine = addLine(new, config->cfi, LT_DEVTREE,
4571		config->secondaryIndent,
4572		ndtp);
4573		needs &= ~NEED_DEVTREE;
4574		newLine =
4575		addLineTmpl(new, tmplLine, newLine, NULL,
4576		config->cfi);
4577		} else {
4578		/* pass through other lines from the template */
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, NULL,
4581		config->cfi);
4582		}
4583		}
4584
4585		} else {
4586		/* don't have a template, so start the entry with the
4587		* appropriate starting line
4588		*/
4589		switch (config->cfi->entryStart) {
4590		case LT_KERNEL:
4591		case LT_KERNEL_EFI:
4592		case LT_KERNEL_16:
4593		if (new->multiboot && config->cfi->mbHyperFirst) {
4594		/* fall through to LT_HYPER */
4595		} else {
4596		newLine = addLine(new, config->cfi,
4597		preferredLineType(LT_KERNEL,
4598		config->
4599		cfi),
4600		config->primaryIndent,
4601		newKernelPath +
4602		strlen(prefix));
4603		needs &= ~NEED_KERNEL;
4604		break;
4605		}
4606
4607		case LT_HYPER:
4608		newLine = addLine(new, config->cfi, LT_HYPER,
4609		config->primaryIndent,
4610		newMBKernel + strlen(prefix));
4611		needs &= ~NEED_MB;
4612		break;
4613
4614	} else if (displayDefaultTitle) {	case LT_MENUENTRY:{
4615	struct singleLine * line;	char *nkt = malloc(strlen(newKernelTitle) + 3);
4616	struct singleEntry * entry;	strcpy(nkt, "'");
4617		strcat(nkt, newKernelTitle);
4618	if (config->defaultImage == -1) return 0;	strcat(nkt, "'");
4619	entry = findEntryByIndex(config, config->defaultImage);	newLine =
4620	if (!entry) return 0;	addLine(new, config->cfi, LT_MENUENTRY,
4621		config->primaryIndent, nkt);
4622	if (!configureGrub2) {	free(nkt);
4623	line = getLineByType(LT_TITLE, entry->lines);	needs &= ~NEED_TITLE;
4624	if (!line) return 0;	needs |= NEED_END;
4625	printf("%s\n", line->elements[1].item);	break;
4626		}
4627	} else {	case LT_TITLE:
4628	int i;	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4629	size_t len;	char *templabel;
4630	char * start;	int x = 0, y = 0;
4631	char * tmp;
4632		templabel = strdup(newKernelTitle);
4633	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	while (templabel[x]) {
4634	line = getLineByType(LT_MENUENTRY, entry->lines);	if (templabel[x] == ' ') {
4635	if (!line) return 0;	y = x;
4636		while (templabel[y]) {
4637	for (i = 0; i < line->numElements; i++) {	templabel[y] =
4638		templabel[y + 1];
4639	if (!strcmp(line->elements[i].item, "menuentry"))	y++;
4640	continue;	}
4641		}
4642	if (*line->elements[i].item == '\'')	x++;
4643	start = line->elements[i].item + 1;	}
4644	else	newLine = addLine(new, config->cfi, LT_TITLE,
4645	start = line->elements[i].item;	config->primaryIndent,
4646		templabel);
4647	len = strlen(start);	free(templabel);
4648	if (*(start + len - 1) == '\'') {	} else {
4649	tmp = strdup(start);	newLine = addLine(new, config->cfi, LT_TITLE,
4650	*(tmp + len - 1) = '\0';	config->primaryIndent,
4651	printf("%s", tmp);	newKernelTitle);
4652	free(tmp);	}
4653	break;	needs &= ~NEED_TITLE;
4654	} else {	break;
4655	printf("%s ", start);
4656	}	default:
4657	}	abort();
4658	printf("\n");	}
4659		}
4660
4661		struct singleLine *endLine = NULL;
4662		endLine = getLineByType(LT_ENTRY_END, new->lines);
4663		if (endLine) {
4664		removeLine(new, endLine);
4665		needs |= NEED_END;
4666		}
4667
4668		/* add the remainder of the lines, i.e. those that either
4669		* weren't present in the template, or in the case of no template,
4670		* all the lines following the entryStart.
4671		*/
4672		if (needs & NEED_TITLE) {
4673		newLine = addLine(new, config->cfi, LT_TITLE,
4674		config->secondaryIndent, newKernelTitle);
4675		needs &= ~NEED_TITLE;
4676		}
4677		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4678		newLine = addLine(new, config->cfi, LT_HYPER,
4679		config->secondaryIndent,
4680		newMBKernel + strlen(prefix));
4681		needs &= ~NEED_MB;
4682		}
4683		if (needs & NEED_KERNEL) {
4684		newLine = addLine(new, config->cfi,
4685		(new->multiboot
4686		&& getKeywordByType(LT_MBMODULE,
4687		config->cfi))
4688		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4689		config->
4690		cfi),
4691		config->secondaryIndent,
4692		newKernelPath + strlen(prefix));
4693		needs &= ~NEED_KERNEL;
4694		}
4695		if (needs & NEED_MB) {
4696		newLine = addLine(new, config->cfi, LT_HYPER,
4697		config->secondaryIndent,
4698		newMBKernel + strlen(prefix));
4699		needs &= ~NEED_MB;
4700		}
4701		if (needs & NEED_INITRD) {
4702		char *initrdVal;
4703		initrdVal =
4704		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4705		extraInitrds, extraInitrdCount);
4706		newLine =
4707		addLine(new, config->cfi,
4708		(new->multiboot
4709		&& getKeywordByType(LT_MBMODULE, config->cfi))
4710		? LT_MBMODULE : preferredLineType(LT_INITRD,
4711		config->cfi),
4712		config->secondaryIndent, initrdVal);
4713		free(initrdVal);
4714		needs &= ~NEED_INITRD;
4715		}
4716		if (needs & NEED_DEVTREE) {
4717		newLine = addLine(new, config->cfi, LT_DEVTREE,
4718		config->secondaryIndent, newDevTreePath);
4719		needs &= ~NEED_DEVTREE;
4720		}
4721
4722		/* NEEDS_END must be last on bootloaders that need it... */
4723		if (needs & NEED_END) {
4724		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4725		config->secondaryIndent, NULL);
4726		needs &= ~NEED_END;
4727		}
4728
4729		if (needs) {
4730		printf(_("grubby: needs=%d, aborting\n"), needs);
4731		abort();
4732	}	}
4733
4734		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4735		newMBKernelArgs, NULL)) {
4736		config->isModified = 1;
4737		return 1;
4738		}
4739
4740	return 0;	return 0;
4741		}
4742
4743	} else if (displayDefaultIndex) {	int main(int argc, const char **argv)
4744	if (config->defaultImage == -1) return 0;	{
4745	printf("%i\n", config->defaultImage);	poptContext optCon;
4746		const char *grubConfig = NULL;
4747	} else if (kernelInfo)	char *outputFile = NULL;
4748	return displayInfo(config, kernelInfo, bootPrefix);	int arg = 0;
4749		int flags = 0;
4750	if (copyDefault) {	int badImageOkay = 0;
4751	template = findTemplate(config, bootPrefix, NULL, 0, flags);	int configureGrub2 = 0;
4752	if (!template) return 1;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4753	}	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4754		int configureExtLinux = 0;
4755		int bootloaderProbe = 0;
4756		int extraInitrdCount = 0;
4757		char *updateKernelPath = NULL;
4758		char *newKernelPath = NULL;
4759		char *removeKernelPath = NULL;
4760		char *newKernelArgs = NULL;
4761		char *newKernelInitrd = NULL;
4762		char *newKernelTitle = NULL;
4763		char *newDevTreePath = NULL;
4764		char *newMBKernel = NULL;
4765		char *newMBKernelArgs = NULL;
4766		int newIndex = 0;
4767		char *removeMBKernelArgs = NULL;
4768		char *removeMBKernel = NULL;
4769		char *bootPrefix = NULL;
4770		char *defaultKernel = NULL;
4771		char *removeArgs = NULL;
4772		char *kernelInfo = NULL;
4773		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4774		char *envPath = NULL;
4775		const char *chptr = NULL;
4776		struct configFileInfo *cfi = NULL;
4777		struct grubConfig *config;
4778		struct singleEntry *template = NULL;
4779		int copyDefault = 0, makeDefault = 0;
4780		int displayDefault = 0;
4781		int displayDefaultIndex = 0;
4782		int displayDefaultTitle = 0;
4783		int defaultIndex = -1;
4784		struct poptOption options[] = {
4785		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4786		_("add an entry for the specified kernel"), _("kernel-path")},
4787		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4788		_("add an entry for the specified multiboot kernel"), NULL},
4789		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4790		_("default arguments for the new kernel or new arguments for "
4791		"kernel being updated"), _("args")},
4792		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4793		_("default arguments for the new multiboot kernel or "
4794		"new arguments for multiboot kernel being updated"), NULL},
4795		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4796		_
4797		("don't sanity check images in boot entries (for testing only)"),
4798		NULL},
4799		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4800		_
4801		("filesystem which contains /boot directory (for testing only)"),
4802		_("bootfs")},
4803		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4804		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4805		_("check which bootloader is installed on boot sector")},
4806		#endif
4807		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4808		_("path to grub config file to update (\"-\" for stdin)"),
4809		_("path")},
4810		{"copy-default", 0, 0, &copyDefault, 0,
4811		_("use the default boot entry as a template for the new entry "
4812		"being added; if the default is not a linux image, or if "
4813		"the kernel referenced by the default image does not exist, "
4814		"the first linux entry whose kernel does exist is used as the "
4815		"template"), NULL},
4816		{"debug", 0, 0, &debug, 0,
4817		_("print debugging information for failures")},
4818		{"default-kernel", 0, 0, &displayDefault, 0,
4819		_("display the path of the default kernel")},
4820		{"default-index", 0, 0, &displayDefaultIndex, 0,
4821		_("display the index of the default kernel")},
4822		{"default-title", 0, 0, &displayDefaultTitle, 0,
4823		_("display the title of the default kernel")},
4824		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4825		_("device tree file for new stanza"), _("dtb-path")},
4826		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4827		_("device tree directory for new stanza"), _("dtb-path")},
4828		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4829		_("configure elilo bootloader")},
4830		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4831		_("force grub2 stanzas to use efi")},
4832		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4833		_("path for environment data"),
4834		_("path")},
4835		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4836		_("configure extlinux bootloader (from syslinux)")},
4837		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4838		_("configure grub bootloader")},
4839		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4840		_("configure grub2 bootloader")},
4841		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4842		_("display boot information for specified kernel"),
4843		_("kernel-path")},
4844		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4845		_("initrd image for the new kernel"), _("initrd-path")},
4846		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4847		_
4848		("auxiliary initrd image for things other than the new kernel"),
4849		_("initrd-path")},
4850		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4851		_("configure lilo bootloader")},
4852		{"make-default", 0, 0, &makeDefault, 0,
4853		_("make the newly added entry the default boot entry"), NULL},
4854		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4855		_("path to output updated config file (\"-\" for stdout)"),
4856		_("path")},
4857		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4858		_("remove kernel arguments"), NULL},
4859		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4860		_("remove multiboot kernel arguments"), NULL},
4861		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4862		_("remove all entries for the specified kernel"),
4863		_("kernel-path")},
4864		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4865		_("remove all entries for the specified multiboot kernel"),
4866		NULL},
4867		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4868		_("make the first entry referencing the specified kernel "
4869		"the default"), _("kernel-path")},
4870		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4871		_("make the given entry index the default entry"),
4872		_("entry-index")},
4873		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4874		_("use the given index when creating a new entry"),
4875		_("entry-index")},
4876		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4877		_("configure silo bootloader")},
4878		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4879		_("title to use for the new kernel entry"), _("entry-title")},
4880		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4881		_("updated information for the specified kernel"),
4882		_("kernel-path")},
4883		{"version", 'v', 0, NULL, 'v',
4884		_("print the version of this program and exit"), NULL},
4885		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4886		_("configure yaboot bootloader")},
4887		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4888		_("configure zipl bootloader")},
4889		POPT_AUTOHELP {0, 0, 0, 0, 0}
4890		};
4891
4892		useextlinuxmenu = 0;
4893
4894		int i = 0;
4895		for (int j = 1; j < argc; j++)
4896		i += strlen(argv[j]) + 1;
4897		saved_command_line = malloc(i);
4898		if (!saved_command_line) {
4899		fprintf(stderr, "grubby: %m\n");
4900		exit(1);
4901		}
4902		saved_command_line[0] = '\0';
4903		for (int j = 1; j < argc; j++) {
4904		strcat(saved_command_line, argv[j]);
4905		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4906		}
4907
4908		optCon = poptGetContext("grubby", argc, argv, options, 0);
4909		poptReadDefaultConfig(optCon, 1);
4910
4911		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4912		switch (arg) {
4913		case 'v':
4914		printf("grubby version %s\n", VERSION);
4915		exit(0);
4916		break;
4917		case 'i':
4918		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4919		extraInitrds[extraInitrdCount++] =
4920		strdup(poptGetOptArg(optCon));
4921		} else {
4922		fprintf(stderr,
4923		_
4924		("grubby: extra initrd maximum is %d\n"),
4925		extraInitrdCount);
4926		return 1;
4927		}
4928		break;
4929		}
4930		}
4931
4932	markRemovedImage(config, removeKernelPath, bootPrefix);	if (arg < -1) {
4933	markRemovedImage(config, removeMBKernel, bootPrefix);	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4934	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4935	bootPrefix, flags);	poptStrerror(arg));
4936	setFallbackImage(config, newKernelPath != NULL);	return 1;
4937	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	}
4938	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;
4939	if (updateKernelPath && newKernelInitrd) {	if ((chptr = poptGetArg(optCon))) {
4940	if (updateInitrd(config, updateKernelPath, bootPrefix,	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4941	newKernelInitrd)) return 1;	return 1;
4942	}	}
4943	if (addNewKernel(config, template, bootPrefix, newKernelPath,
4944	newKernelTitle, newKernelArgs, newKernelInitrd,	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
4945	extraInitrds, extraInitrdCount,	configureYaboot + configureSilo + configureZipl +
4946	newMBKernel, newMBKernelArgs)) return 1;	configureExtLinux) > 1) {
4947		fprintf(stderr,
4948		_("grubby: cannot specify multiple bootloaders\n"));
4949	if (numEntries(config) == 0) {	return 1;
4950	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	} else if (bootloaderProbe && grubConfig) {
4951	"Not writing out new config.\n"));	fprintf(stderr,
4952	return 1;	_
4953	}	("grubby: cannot specify config file with --bootloader-probe\n"));
4954		return 1;
4955		} else if (configureGrub2) {
4956		cfi = &grub2ConfigType;
4957		if (envPath)
4958		cfi->envFile = envPath;
4959		} else if (configureLilo) {
4960		cfi = &liloConfigType;
4961		} else if (configureGrub) {
4962		cfi = &grubConfigType;
4963		} else if (configureELilo) {
4964		cfi = &eliloConfigType;
4965		} else if (configureYaboot) {
4966		cfi = &yabootConfigType;
4967		} else if (configureSilo) {
4968		cfi = &siloConfigType;
4969		} else if (configureZipl) {
4970		cfi = &ziplConfigType;
4971		} else if (configureExtLinux) {
4972		cfi = &extlinuxConfigType;
4973		useextlinuxmenu = 1;
4974		}
4975
4976		if (!cfi) {
4977		if (grub2FindConfig(&grub2ConfigType)) {
4978		cfi = &grub2ConfigType;
4979		if (envPath)
4980		cfi->envFile = envPath;
4981		} else
4982		#ifdef __ia64__
4983		cfi = &eliloConfigType;
4984		#elif __powerpc__
4985		cfi = &yabootConfigType;
4986		#elif __sparc__
4987		cfi = &siloConfigType;
4988		#elif __s390__
4989		cfi = &ziplConfigType;
4990		#elif __s390x__
4991		cfi = &ziplConfigtype;
4992		#else
4993		cfi = &grubConfigType;
4994		#endif
4995		}
4996
4997		if (!grubConfig) {
4998		if (cfi->findConfig)
4999		grubConfig = cfi->findConfig(cfi);
5000		if (!grubConfig)
5001		grubConfig = cfi->defaultConfig;
5002		}
5003
5004		if (bootloaderProbe && (displayDefault || kernelInfo ||
5005		newKernelPath || removeKernelPath || makeDefault
5006		|| defaultKernel || displayDefaultIndex
5007		|| displayDefaultTitle
5008		|| (defaultIndex >= 0))) {
5009		fprintf(stderr,
5010		_("grubby: --bootloader-probe may not be used with "
5011		"specified option"));
5012		return 1;
5013		}
5014
5015		if ((displayDefault || kernelInfo) && (newKernelPath ||
5016		removeKernelPath)) {
5017		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5018		"be used when adding or removing kernels\n"));
5019		return 1;
5020		}
5021
5022		if (newKernelPath && !newKernelTitle) {
5023		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5024		return 1;
5025		} else if (!newKernelPath && (copyDefault ||
5026		(newKernelInitrd && !updateKernelPath) ||
5027		makeDefault || extraInitrdCount > 0)) {
5028		fprintf(stderr, _("grubby: kernel path expected\n"));
5029		return 1;
5030		}
5031
5032		if (newKernelPath && updateKernelPath) {
5033		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5034		"not be used together"));
5035		return 1;
5036		}
5037
5038		if (makeDefault && defaultKernel) {
5039		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5040		"may not be used together\n"));
5041		return 1;
5042		} else if (defaultKernel && removeKernelPath &&
5043		!strcmp(defaultKernel, removeKernelPath)) {
5044		fprintf(stderr,
5045		_("grubby: cannot make removed kernel the default\n"));
5046		return 1;
5047		} else if (defaultKernel && newKernelPath &&
5048		!strcmp(defaultKernel, newKernelPath)) {
5049		makeDefault = 1;
5050		defaultKernel = NULL;
5051		} else if (defaultKernel && (defaultIndex >= 0)) {
5052		fprintf(stderr,
5053		_("grubby: --set-default and --set-default-index "
5054		"may not be used together\n"));
5055		return 1;
5056		}
5057
5058		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5059		fprintf(stderr,
5060		_("grubby: output file must be specified if stdin "
5061		"is used\n"));
5062		return 1;
5063		}
5064
5065		if (!removeKernelPath && !newKernelPath && !displayDefault
5066		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5067		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5068		&& !displayDefaultTitle && (defaultIndex == -1)) {
5069		fprintf(stderr, _("grubby: no action specified\n"));
5070		return 1;
5071		}
5072
5073		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5074
5075		if (cfi->needsBootPrefix) {
5076		if (!bootPrefix) {
5077		bootPrefix = findBootPrefix();
5078		if (!bootPrefix)
5079		return 1;
5080		} else {
5081		/* this shouldn't end with a / */
5082		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5083		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5084		}
5085		} else {
5086		bootPrefix = "";
5087		}
5088
5089		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5090		fprintf(stderr,
5091		_("grubby: %s doesn't allow multiple initrds\n"),
5092		cfi->defaultConfig);
5093		return 1;
5094		}
5095
5096		if (bootloaderProbe) {
5097		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5098		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5099
5100		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5101		if (grub2config) {
5102		gconfig = readConfig(grub2config, &grub2ConfigType);
5103		if (!gconfig)
5104		gr2c = 1;
5105		else
5106		gr2c = checkForGrub2(gconfig);
5107		}
5108
5109		const char *grubconfig = grubFindConfig(&grubConfigType);
5110		if (!access(grubconfig, F_OK)) {
5111		gconfig = readConfig(grubconfig, &grubConfigType);
5112		if (!gconfig)
5113		grc = 1;
5114		else
5115		grc = checkForGrub(gconfig);
5116		}
5117
5118		if (!access(liloConfigType.defaultConfig, F_OK)) {
5119		lconfig =
5120		readConfig(liloConfigType.defaultConfig,
5121		&liloConfigType);
5122		if (!lconfig)
5123		lrc = 1;
5124		else
5125		lrc = checkForLilo(lconfig);
5126		}
5127
5128		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5129		econfig = readConfig(eliloConfigType.defaultConfig,
5130		&eliloConfigType);
5131		if (!econfig)
5132		erc = 1;
5133		else
5134		erc = checkForElilo(econfig);
5135		}
5136
5137		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5138		lconfig =
5139		readConfig(extlinuxConfigType.defaultConfig,
5140		&extlinuxConfigType);
5141		if (!lconfig)
5142		extrc = 1;
5143		else
5144		extrc = checkForExtLinux(lconfig);
5145		}
5146
5147		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5148		yconfig = readConfig(yabootConfigType.defaultConfig,
5149		&yabootConfigType);
5150		if (!yconfig)
5151		yrc = 1;
5152		else
5153		yrc = checkForYaboot(yconfig);
5154		}
5155
5156		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5157		|| erc == 1)
5158		return 1;
5159
5160		if (lrc == 2)
5161		printf("lilo\n");
5162		if (gr2c == 2)
5163		printf("grub2\n");
5164		if (grc == 2)
5165		printf("grub\n");
5166		if (extrc == 2)
5167		printf("extlinux\n");
5168		if (yrc == 2)
5169		printf("yaboot\n");
5170		if (erc == 2)
5171		printf("elilo\n");
5172
5173		return 0;
5174		}
5175
5176		if (grubConfig == NULL) {
5177		printf("Could not find bootloader configuration file.\n");
5178		exit(1);
5179		}
5180
5181		config = readConfig(grubConfig, cfi);
5182		if (!config)
5183		return 1;
5184
5185		if (displayDefault) {
5186		struct singleLine *line;
5187		struct singleEntry *entry;
5188		char *rootspec;
5189
5190		if (config->defaultImage == NO_DEFAULT_ENTRY)
5191		return 0;
5192		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5193		cfi->defaultIsSaved)
5194		config->defaultImage = FIRST_ENTRY_INDEX;
5195		entry = findEntryByIndex(config, config->defaultImage);
5196		if (!entry)
5197		return 0;
5198		if (!suitableImage(entry, bootPrefix, 0, flags))
5199		return 0;
5200
5201		line =
5202		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5203		LT_KERNEL_16, entry->lines);
5204		if (!line)
5205		return 0;
5206
5207		rootspec = getRootSpecifier(line->elements[1].item);
5208		printf("%s%s\n", bootPrefix, line->elements[1].item +
5209		((rootspec != NULL) ? strlen(rootspec) : 0));
5210
5211		return 0;
5212
5213		} else if (displayDefaultTitle) {
5214		struct singleLine *line;
5215		struct singleEntry *entry;
5216
5217		if (config->defaultImage == NO_DEFAULT_ENTRY)
5218		return 0;
5219		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5220		cfi->defaultIsSaved)
5221		config->defaultImage = FIRST_ENTRY_INDEX;
5222		entry = findEntryByIndex(config, config->defaultImage);
5223		if (!entry)
5224		return 0;
5225
5226		if (!configureGrub2) {
5227		char *title;
5228		line = getLineByType(LT_TITLE, entry->lines);
5229		if (!line)
5230		return 0;
5231		title = extractTitle(config, line);
5232		if (!title)
5233		return 0;
5234		printf("%s\n", title);
5235		free(title);
5236		} else {
5237		char *title;
5238
5239		dbgPrintf
5240		("This is GRUB2, default title is embeded in menuentry\n");
5241		line = getLineByType(LT_MENUENTRY, entry->lines);
5242		if (!line)
5243		return 0;
5244		title = grub2ExtractTitle(line);
5245		if (title)
5246		printf("%s\n", title);
5247		}
5248		return 0;
5249
5250		} else if (displayDefaultIndex) {
5251		if (config->defaultImage == NO_DEFAULT_ENTRY)
5252		return 0;
5253		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5254		cfi->defaultIsSaved)
5255		config->defaultImage = FIRST_ENTRY_INDEX;
5256		printf("%i\n", config->defaultImage);
5257		return 0;
5258
5259		} else if (kernelInfo)
5260		return displayInfo(config, kernelInfo, bootPrefix);
5261
5262		if (copyDefault) {
5263		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5264		if (!template)
5265		return 1;
5266		}
5267
5268		markRemovedImage(config, removeKernelPath, bootPrefix);
5269		markRemovedImage(config, removeMBKernel, bootPrefix);
5270		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5271		makeDefault, bootPrefix, flags, defaultIndex);
5272		setFallbackImage(config, newKernelPath != NULL);
5273		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5274		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5275		return 1;
5276		if (updateKernelPath && newKernelInitrd) {
5277		if (newMBKernel) {
5278		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5279		bootPrefix, newKernelInitrd,
5280		newKernelTitle))
5281		return 1;
5282		} else {
5283		if (updateInitrd(config, updateKernelPath, bootPrefix,
5284		newKernelInitrd, newKernelTitle))
5285		return 1;
5286		}
5287		}
5288		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5289		newKernelTitle, newKernelArgs, newKernelInitrd,
5290		(const char **)extraInitrds, extraInitrdCount,
5291		newMBKernel, newMBKernelArgs, newDevTreePath,
5292		newIndex))
5293		return 1;
5294
5295		if (numEntries(config) == 0) {
5296		fprintf(stderr,
5297		_("grubby: doing this would leave no kernel entries. "
5298		"Not writing out new config.\n"));
5299		return 1;
5300		}
5301
5302	if (!outputFile)	if (!outputFile)
5303	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5304
5305	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5306	}	}

---

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

Legend: Removed from v.1721   changed lines   Added in v.3019