Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1721 by niro, Sat Feb 18 00:52:28 2012 UTC	revision 3135 by niro, Tue Jul 7 11:08:26 2020 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		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191	line->elements[i].indent = strdup("");	}
1192	p = line->elements[i].item;	line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (!sawEntry && line->numElements) {	}
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntryStart(line, cfi)) {
	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		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	entry = cfg->entries;
1752	fprintf(stderr, "grubby: failed to open %s: %s\n",	while (entry && entry->skip)
1753	_PATH_MOUNTED, strerror(errno));	entry = entry->next;
1754	return NULL;
1755	}	i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759	rc = read(fd, buf, sizeof(buf) - 1);	while (entry && entry->skip)
1760	if (rc <= 0) {	entry = entry->next;
1761	fprintf(stderr, "grubby: failed to read %s: %s\n",	i++;
1762	_PATH_MOUNTED, strerror(errno));	}
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	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++;
	}
1763
1764	return NULL;	if (!entry)
1765	}	return;
1766
1767	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);
1768
1769	if (line && line->numElements >= 2) {	if (line && line->numElements >= 2)
1770	dev = line->elements[1].item;	fprintf(out, "%sdefault%s%s\n", indent,
1771	} else {	separator, line->elements[1].item);
1772	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	else if (line && (line->numElements == 1)
1773	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	&& cfg->cfi->titleBracketed) {
1774	*/	char *title = extractTitle(cfg, line);
1775	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777	/* failed to find one */	separator, title);
1778	if (!line) return 0;	free(title);
1779		}
1780	for (i = 1; i < line->numElements; i++)	}
1781	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;
	}
1782	}	}
1783	}	}
	dev = getpathbyspec(dev);
	if (!dev)
	return 0;
	rootdev = findDiskForRoot();
	if (!rootdev)
	return 0;
	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
	free(rootdev);
	return 0;
	}
1784
1785	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	free(rootdev);	const char *prefix)
1787	return 0;	{
1788	}	FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800		} else {
1801		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803		int len = 256;
1804		int rc;
1805
1806		/* most likely the symlink is relative, so change our
1807		directory to the dir of the symlink */
1808		char *dir = strdupa(outName);
1809		rc = chdir(dirname(dir));
1810		do {
1811		buf = alloca(len + 1);
1812		rc = readlink(basename(outName), buf, len);
1813		if (rc == len)
1814		len += 256;
1815		} while (rc == len);
1816
1817		if (rc < 0) {
1818		fprintf(stderr,
1819		_
1820		("grubby: error readlink link %s: %s\n"),
1821		outName, strerror(errno));
1822		return 1;
1823		}
1824
1825	free(rootdev);	outName = buf;
1826		outName[rc] = '\0';
1827		}
1828
1829	return 1;	tmpOutName = alloca(strlen(outName) + 2);
1830	}	sprintf(tmpOutName, "%s-", outName);
1831		out = fopen(tmpOutName, "w");
1832		if (!out) {
1833		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834		tmpOutName, strerror(errno));
1835		return 1;
1836		}
1837
1838	/* returns the first match on or after the one pointed to by index (if index	if (!stat(outName, &sb)) {
1839	is not NULL) which is not marked as skip */	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840	struct singleEntry * findEntryByPath(struct grubConfig * config,	fprintf(stderr,
1841	const char * kernel, const char * prefix,	_
1842	int * index) {	("grubby: error setting perms on %s: %s\n"),
1843	struct singleEntry * entry = NULL;	tmpOutName, strerror(errno));
1844	struct singleLine * line;	fclose(out);
1845	int i;	unlink(tmpOutName);
1846	char * chptr;	return 1;
1847	char * rootspec = NULL;	}
1848	enum lineType_e checkType = LT_KERNEL;	}
1849		}
1850
1851	if (isdigit(*kernel)) {	line = cfg->theLines;
1852	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1853		while (line) {
1854		if (line->type == LT_SET_VARIABLE && defaultKw &&
1855		line->numElements == 3 &&
1856		!strcmp(line->elements[1].item, defaultKw->key) &&
1857		!is_special_grub2_variable(line->elements[2].item)) {
1858		writeDefault(out, line->indent,
1859		line->elements[0].indent, cfg);
1860		needs &= ~MAIN_DEFAULT;
1861		} else if (line->type == LT_DEFAULT) {
1862		writeDefault(out, line->indent,
1863		line->elements[0].indent, cfg);
1864		needs &= ~MAIN_DEFAULT;
1865		} else if (line->type == LT_FALLBACK) {
1866		if (cfg->fallbackImage > -1)
1867		fprintf(out, "%s%s%s%d\n", line->indent,
1868		line->elements[0].item,
1869		line->elements[0].indent,
1870		cfg->fallbackImage);
1871		} else {
1872		if (lineWrite(out, line, cfg->cfi) == -1) {
1873		fprintf(stderr,
1874		_("grubby: error writing %s: %s\n"),
1875		tmpOutName, strerror(errno));
1876		fclose(out);
1877		unlink(tmpOutName);
1878		return 1;
1879		}
1880		}
1881
1882	i = 0;	line = line->next;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
1883	}	}
1884
1885	if (*chptr) {	if (needs & MAIN_DEFAULT) {
1886	/* can't parse it, bail */	writeDefault(out, cfg->primaryIndent, "=", cfg);
1887	return NULL;	needs &= ~MAIN_DEFAULT;
1888	}	}
1889
	indexVars[i + 1] = -1;
1890	i = 0;	i = 0;
1891	if (index) {	while ((entry = findEntryByIndex(cfg, i++))) {
1892	while (i < *index) i++;	if (entry->skip)
1893	if (indexVars[i] == -1) return NULL;	continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907	}	}
1908
1909	entry = findEntryByIndex(config, indexVars[i]);	if (tmpOutName) {
1910	if (!entry) return NULL;	/* write userspace buffers */
1911		if (fflush(out))
1912		rc = 1;
1913
1914		/* purge the write-back cache with fsync() */
1915		if (fsync(fileno(out)))
1916		rc = 1;
1917
1918		if (fclose(out))
1919		rc = 1;
1920
1921		if (rc == 0 && rename(tmpOutName, outName)) {
1922		unlink(tmpOutName);
1923		rc = 1;
1924		}
1925
1926	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	/* fsync() the destination directory after rename */
1927	if (!line) return NULL;	if (rc == 0) {
1928		int dirfd;
1929
1930		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1931		if (dirfd < 0)
1932		rc = 1;
1933		else if (fsync(dirfd))
1934		rc = 1;
1935
1936	if (index) *index = indexVars[i];	if (dirfd >= 0)
1937	return entry;	close(dirfd);
1938	}	}
	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;
1939
1940	while ((entry = findEntryByIndex(config, i))) {	if (rc == 1)
1941	if (!entry->skip) break;	fprintf(stderr,
1942	i++;	_("grubby: error flushing data: %m\n"));
1943	}	}
1944
1945	if (entry && index)	return rc;
1946	*index = i;	}
1947	} else {
1948	if (index)	static int numEntries(struct grubConfig *cfg)
1949	i = *index;	{
1950	else	int i = 0;
1951	i = 0;	struct singleEntry *entry;
1952
1953	if (!strncmp(kernel, "TITLE=", 6)) {	entry = cfg->entries;
1954	prefix = "";	while (entry) {
1955	checkType = LT_TITLE;	if (!entry->skip)
1956	kernel += 6;	i++;
1957		entry = entry->next;
1958	}	}
1959		return i;
1960		}
1961
1962	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	static char *findDiskForRoot()
1963	if (entry->skip) continue;	{
1964		int fd;
1965		char buf[65536];
1966		char *devname;
1967		char *chptr;
1968		int rc;
1969
1970		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971		fprintf(stderr, "grubby: failed to open %s: %s\n",
1972		_PATH_MOUNTED, strerror(errno));
1973		return NULL;
1974		}
1975
1976		rc = read(fd, buf, sizeof(buf) - 1);
1977		if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979		_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981		return NULL;
1982		}
1983		close(fd);
1984		buf[rc] = '\0';
1985		chptr = buf;
1986
1987	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	char *foundanswer = NULL;
1988
1989	/* check all the lines matching checkType */	while (chptr && chptr != buf + rc) {
1990	for (line = entry->lines; line; line = line->next) {	devname = chptr;
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
1991
1992	if (line && line->numElements >= 2) {	/*
1993	rootspec = getRootSpecifier(line->elements[1].item);	* The first column of a mtab entry is the device, but if the
1994	if (!strcmp(line->elements[1].item +	* entry is a special device it won't start with /, so move
1995	((rootspec != NULL) ? strlen(rootspec) : 0),	* on to the next line.
1996	kernel + strlen(prefix)))	*/
1997	break;	if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004		/* Seek to the next space */
2005		chptr = strchr(chptr, ' ');
2006		if (!chptr) {
2007		fprintf(stderr, "grubby: error parsing %s: %s\n",
2008		_PATH_MOUNTED, strerror(errno));
2009		return NULL;
2010		}
2011
2012		/*
2013		* The second column of a mtab entry is the mount point, we
2014		* are looking for '/' obviously.
2015		*/
2016		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2017		/* remember the last / entry in mtab */
2018		foundanswer = devname;
2019	}	}
	}
2020
2021	/* make sure this entry has a kernel identifier; this skips	/* Next line */
2022	* non-Linux boot entries (could find netbsd etc, though, which is	chptr = strchr(chptr, '\n');
2023	* unfortunate)	if (chptr)
2024	*/	chptr++;
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2025	}	}
2026
2027	if (index) *index = i;	/* Return the last / entry found */
2028	}	if (foundanswer) {
2029		chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032		}
2033
2034	return entry;	return NULL;
2035	}	}
2036
2037	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	void printEntry(struct singleEntry *entry, FILE * f)
2038	struct singleEntry * entry;	{
2039		int i;
2040		struct singleLine *line;
2041
2042	entry = cfg->entries;	for (line = entry->lines; line; line = line->next) {
2043	while (index && entry) {	log_message(f, "DBG: %s", line->indent);
2044	entry = entry->next;	for (i = 0; i < line->numElements; i++) {
2045	index--;	/* Need to handle this, because we strip the quotes from
2046	}	* menuentry when read it. */
2047		if (line->type == LT_MENUENTRY && i == 1) {
2048		if (!isquote(*line->elements[i].item))
2049		log_message(f, "\'%s\'",
2050		line->elements[i].item);
2051		else
2052		log_message(f, "%s",
2053		line->elements[i].item);
2054		log_message(f, "%s", line->elements[i].indent);
2055
2056	return entry;	continue;
2057	}	}
2058
2059	/* Find a good template to use for the new kernel. An entry is	log_message(f, "%s%s",
2060	* good if the kernel and mkinitrd exist (even if the entry	line->elements[i].item,
2061	* is going to be removed). Try and use the default entry, but	line->elements[i].indent);
2062	* if that doesn't work just take the first. If we can't find one,	}
2063	* 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;
2064	}	}
2065	}	}
2066
2067		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069		{
2070		static int once;
2071		va_list argp, argq;
2072
2073	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;
2074
2075	return entry;	va_copy(argq, argp);
2076		if (!once) {
2077		log_time(NULL);
2078		log_message(NULL, "command line: %s\n", saved_command_line);
2079	}	}
2080		log_message(NULL, "DBG: Image entry %s: ",
2081		okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
2083
2084	index++;	printEntry(entry, NULL);
2085	}	va_end(argq);
2086
2087		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	if (okay) {
2094		va_end(argp);
2095		return;
2096		}
2097
2098	return NULL;	if (!once)
2099		log_message(stderr, "DBG: command line: %s\n",
2100		saved_command_line);
2101		once = 1;
2102		fprintf(stderr, "DBG: Image entry failed: ");
2103		vfprintf(stderr, fmt, argp);
2104		printEntry(entry, stderr);
2105		va_end(argp);
2106	}	}
2107
2108	char * findBootPrefix(void) {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	struct stat sb, sb2;
2109
2110	stat("/", &sb);	static int endswith(const char *s, char c)
2111	#ifdef __ia64__	{
2112	stat("/boot/efi/EFI/redhat/", &sb2);	int slen;
	#else
	stat("/boot", &sb2);
	#endif
2113
2114	if (sb.st_dev == sb2.st_dev)	if (!s || !s[0])
2115	return strdup("");	return 0;
2116		slen = strlen(s) - 1;
2117
2118	#ifdef __ia64__	return s[slen] == c;
	return strdup("/boot/efi/EFI/redhat/");
	#else
	return strdup("/boot");
	#endif
2119	}	}
2120
2121	void markRemovedImage(struct grubConfig * cfg, const char * image,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	const char * prefix) {	int skipRemoved, int flags)
2123	struct singleEntry * entry;	{
2124		struct singleLine *line;
2125	if (!image) return;	char *fullName;
2126		int i;
2127	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	char *dev;
2128	entry->skip = 1;	char *rootspec;
2129	}	char *rootdev;
2130
2131	void setDefaultImage(struct grubConfig * config, int hasNew,	if (skipRemoved && entry->skip) {
2132	const char * defaultKernelPath, int newIsDefault,	notSuitablePrintf(entry, 0, "marked to skip\n");
2133	const char * prefix, int flags) {	return 0;
2134	struct singleEntry * entry, * entry2, * newDefault;	}
2135	int i, j;
2136		line =
2137	if (newIsDefault) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138	config->defaultImage = 0;	entry->lines);
2139	return;	if (!line) {
2140	} else if (defaultKernelPath) {	notSuitablePrintf(entry, 0, "no line found\n");
2141	i = 0;	return 0;
2142	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	}
2143	config->defaultImage = i;	if (line->numElements < 2) {
2144	} else {	notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145	config->defaultImage = -1;	line->numElements);
2146	return;	return 0;
2147		}
2148
2149		if (flags & GRUBBY_BADIMAGE_OKAY) {
2150		notSuitablePrintf(entry, 1, "\n");
2151		return 1;
2152	}	}
	}
2153
2154	/* defaultImage now points to what we'd like to use, but before any order	fullName = alloca(strlen(bootPrefix) +
2155	changes */	strlen(line->elements[1].item) + 1);
2156	if (config->defaultImage == DEFAULT_SAVED)	rootspec = getRootSpecifier(line->elements[1].item);
2157	/* default is set to saved, we don't want to change it */	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2158	return;	int hasslash = endswith(bootPrefix, '/') ||
2159		beginswith(line->elements[1].item + rootspec_offset, '/');
2160	if (config->defaultImage > -1)	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2161	entry = findEntryByIndex(config, config->defaultImage);	line->elements[1].item + rootspec_offset);
2162	else	if (access(fullName, R_OK)) {
2163	entry = NULL;	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2164		return 0;
2165		}
2166		for (i = 2; i < line->numElements; i++)
2167		if (!strncasecmp(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements) {
2170		dev = line->elements[i].item + 5;
2171		} else {
2172		/* look for a lilo style LT_ROOT line */
2173		line = getLineByType(LT_ROOT, entry->lines);
2174
2175	if (entry && !entry->skip) {	if (line && line->numElements >= 2) {
2176	/* we can preserve the default */	dev = line->elements[1].item;
2177	if (hasNew)	} else {
2178	config->defaultImage++;	/* didn't succeed in finding a LT_ROOT, let's try
2179		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2180	/* count the number of entries erased before this one */	* for the args, so check that too.
2181	for (j = 0; j < config->defaultImage; j++) {	*/
2182	entry2 = findEntryByIndex(config, j);	line =
2183	if (entry2->skip) config->defaultImage--;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2184	}	entry->lines);
2185	} else if (hasNew) {
2186	config->defaultImage = 0;	/* failed to find one */
2187	} else {	if (!line) {
2188	/* Either we just erased the default (or the default line was bad	notSuitablePrintf(entry, 0, "no line found\n");
2189	* to begin with) and didn't put a new one in. We'll use the first	return 0;
2190	* valid image. */	}
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
	}
2191
2192	void setFallbackImage(struct grubConfig * config, int hasNew) {	for (i = 1; i < line->numElements; i++)
2193	struct singleEntry * entry, * entry2;	if (!strncasecmp
2194	int j;	(line->elements[i].item, "root=", 5))
2195		break;
2196	if (config->fallbackImage == -1) return;	if (i < line->numElements)
2197		dev = line->elements[i].item + 5;
2198	entry = findEntryByIndex(config, config->fallbackImage);	else {
2199	if (!entry || entry->skip) {	notSuitablePrintf(entry, 0,
2200	config->fallbackImage = -1;	"no root= entry found\n");
2201	return;	/* it failed too...  can't find root= */
2202	}	return 0;
2203		}
2204		}
2205		}
2206
2207	if (hasNew)	dev = getpathbyspec(dev);
2208	config->fallbackImage++;	if (!getpathbyspec(dev)) {
2209		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2210	/* count the number of entries erased before this one */	dev);
2211	for (j = 0; j < config->fallbackImage; j++) {	return 0;
2212	entry2 = findEntryByIndex(config, j);	} else
2213	if (entry2->skip) config->fallbackImage--;	dev = getpathbyspec(dev);
2214	}
2215		rootdev = findDiskForRoot();
2216		if (!rootdev) {
2217		notSuitablePrintf(entry, 0, "can't find root device\n");
2218		return 0;
2219		}
2220
2221		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2222		notSuitablePrintf(entry, 0,
2223		"uuid missing: rootdev %s, dev %s\n",
2224		getuuidbydev(rootdev), getuuidbydev(dev));
2225		free(rootdev);
2226		return 0;
2227		}
2228
2229		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2230		notSuitablePrintf(entry, 0,
2231		"uuid mismatch: rootdev %s, dev %s\n",
2232		getuuidbydev(rootdev), getuuidbydev(dev));
2233		free(rootdev);
2234		return 0;
2235		}
2236
2237		free(rootdev);
2238		notSuitablePrintf(entry, 1, "\n");
2239
2240		return 1;
2241	}	}
2242
2243	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
2244	struct singleLine * line;	is not NULL) which is not marked as skip */
2245	char * root = NULL;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2246	int i;	const char *kernel, const char *prefix,
2247		int *index)
2248	printf("index=%d\n", index);	{
2249		struct singleEntry *entry = NULL;
2250	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	struct singleLine *line;
2251	if (!line) {	int i;
2252	printf("non linux entry\n");	char *chptr;
2253	return;	char *rootspec = NULL;
2254	}	enum lineType_e checkType = LT_KERNEL;
2255
2256		if (isdigit(*kernel)) {
2257		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2258
2259		i = 0;
2260		indexVars[i] = strtol(kernel, &chptr, 10);
2261		while (*chptr == ',') {
2262		i++;
2263		kernel = chptr + 1;
2264		indexVars[i] = strtol(kernel, &chptr, 10);
2265		}
2266
2267	printf("kernel=%s\n", line->elements[1].item);	if (*chptr) {
2268		/* can't parse it, bail */
2269		return NULL;
2270		}
2271
2272	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);
	}
2273
2274	i++;	i = 0;
2275	}	if (index) {
2276	printf("\"\n");	while (i < *index) {
2277	} else {	i++;
2278	line = getLineByType(LT_KERNELARGS, entry->lines);	if (indexVars[i] == -1)
2279	if (line) {	return NULL;
2280	char * s;	}
2281		}
2282
2283	printf("args=\"");	entry = findEntryByIndex(config, indexVars[i]);
2284	i = 1;	if (!entry)
2285	while (i < line->numElements) {	return NULL;
2286	if (!strncmp(line->elements[i].item, "root=", 5)) {
2287	root = line->elements[i].item + 5;	line =
2288		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2289		LT_KERNEL_16, entry->lines);
2290		if (!line)
2291		return NULL;
2292
2293		if (index)
2294		*index = indexVars[i];
2295		return entry;
2296		}
2297
2298		if (!strcmp(kernel, "DEFAULT")) {
2299		if (index && *index > config->defaultImage) {
2300		entry = NULL;
2301	} else {	} else {
2302	s = line->elements[i].item;	entry = findEntryByIndex(config, config->defaultImage);
2303		if (entry && entry->skip)
2304		entry = NULL;
2305		else if (index)
2306		*index = config->defaultImage;
2307		}
2308		} else if (!strcmp(kernel, "ALL")) {
2309		if (index)
2310		i = *index;
2311		else
2312		i = 0;
2313
2314		while ((entry = findEntryByIndex(config, i))) {
2315		if (!entry->skip)
2316		break;
2317		i++;
2318		}
2319
2320	printf("%s%s", s, line->elements[i].indent);	if (entry && index)
2321		*index = i;
2322		} else {
2323		if (index)
2324		i = *index;
2325		else
2326		i = 0;
2327
2328		if (!strncmp(kernel, "TITLE=", 6)) {
2329		prefix = "";
2330		checkType = LT_TITLE | LT_MENUENTRY;
2331		kernel += 6;
2332	}	}
2333
2334	i++;	for (entry = findEntryByIndex(config, i); entry;
2335	}	entry = entry->next, i++) {
2336		if (entry->skip)
2337		continue;
2338
2339		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2340		checkType, kernel, entry);
2341
2342		/* check all the lines matching checkType */
2343		for (line = entry->lines; line; line = line->next) {
2344		enum lineType_e ct = checkType;
2345		if (entry->multiboot && checkType == LT_KERNEL)
2346		ct = LT_KERNEL | LT_KERNEL_EFI |
2347		LT_MBMODULE | LT_HYPER |
2348		LT_KERNEL_16;
2349		else if (checkType & LT_KERNEL)
2350		ct = checkType | LT_KERNEL_EFI |
2351		LT_KERNEL_16;
2352		line = getLineByType(ct, line);
2353		if (!line)
2354		break; /* not found in this entry */
2355
2356		if (line && line->type != LT_MENUENTRY &&
2357		line->numElements >= 2) {
2358		rootspec =
2359		getRootSpecifier(line->elements[1].
2360		item);
2361		if (!strcmp
2362		(line->elements[1].item +
2363		((rootspec !=
2364		NULL) ? strlen(rootspec) : 0),
2365		kernel + strlen(prefix)))
2366		break;
2367		}
2368		if (line->type == LT_MENUENTRY &&
2369		!strcmp(line->elements[1].item, kernel))
2370		break;
2371		}
2372
2373		/* make sure this entry has a kernel identifier; this skips
2374		* non-Linux boot entries (could find netbsd etc, though, which is
2375		* unfortunate)
2376		*/
2377		if (line
2378		&& getLineByType(LT_KERNEL | LT_HYPER |
2379		LT_KERNEL_EFI | LT_KERNEL_16,
2380		entry->lines))
2381		break; /* found 'im! */
2382		}
2383
2384	s = line->elements[i - 1].indent;	if (index)
2385	printf("\"\n");	*index = i;
2386	}	}
	}
2387
2388	if (!root) {	return entry;
2389	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2390
2391	if (root) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2392	char * s = alloca(strlen(root) + 1);	int *index)
2393		{
2394	strcpy(s, root);	struct singleEntry *entry;
2395	if (s[strlen(s) - 1] == '"')	struct singleLine *line;
2396	s[strlen(s) - 1] = '\0';	int i;
2397	/* make sure the root doesn't have a trailing " */	char *newtitle;
2398	printf("root=%s\n", s);
2399	}	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2400		if (index && i < *index)
2401		continue;
2402		line = getLineByType(LT_TITLE, entry->lines);
2403		if (!line)
2404		line = getLineByType(LT_MENUENTRY, entry->lines);
2405		if (!line)
2406		continue;
2407		newtitle = grub2ExtractTitle(line);
2408		if (!newtitle)
2409		continue;
2410		if (!strcmp(title, newtitle))
2411		break;
2412		}
2413
2414	line = getLineByType(LT_INITRD, entry->lines);	if (!entry)
2415		return NULL;
2416
2417	if (line && line->numElements >= 2) {	if (index)
2418	printf("initrd=%s", prefix);	*index = i;
2419	for (i = 1; i < line->numElements; i++)	return entry;
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2420	}	}
2421
2422	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2423	FILE * in;	{
2424	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);
2425
2426	return 0;	entry = cfg->entries;
2427	}	while (index && entry) {
2428		entry = entry->next;
2429		index--;
2430		}
2431
2432	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);
	}
2433	}	}
2434
2435	int displayInfo(struct grubConfig * config, char * kernel,	/* Find a good template to use for the new kernel. An entry is
2436	const char * prefix) {	* good if the kernel and mkinitrd exist (even if the entry
2437	int i = 0;	* is going to be removed). Try and use the default entry, but
2438	struct singleEntry * entry;	* if that doesn't work just take the first. If we can't find one,
2439	struct singleLine * line;	* bail. */
2440		struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2441	entry = findEntryByPath(config, kernel, prefix, &i);	int *indexPtr, int skipRemoved, int flags)
2442	if (!entry) {	{
2443	fprintf(stderr, _("grubby: kernel not found\n"));	struct singleEntry *entry, *entry2;
2444	return 1;	int index;
	}
2445
2446	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (cfg->cfi->defaultIsSaved) {
2447	be a better way */	if (cfg->cfi->getEnv) {
2448	if (config->cfi == &grubConfigType) {	char *defTitle =
2449	dumpSysconfigGrub();	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2450	} else {	if (defTitle) {
2451	line = getLineByType(LT_BOOT, config->theLines);	int index = 0;
2452	if (line && line->numElements >= 1) {	if (isnumber(defTitle)) {
2453	printf("boot=%s\n", line->elements[1].item);	index = atoi(defTitle);
2454		entry = findEntryByIndex(cfg, index);
2455		} else {
2456		entry =
2457		findEntryByTitle(cfg, defTitle,
2458		&index);
2459		}
2460		if (entry
2461		&& suitableImage(entry, prefix, skipRemoved,
2462		flags)) {
2463		cfg->defaultImage = index;
2464		if (indexPtr)
2465		*indexPtr = index;
2466		return entry;
2467		}
2468		}
2469		}
2470		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2471		entry = findEntryByIndex(cfg, cfg->defaultImage);
2472		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2473		if (indexPtr)
2474		*indexPtr = cfg->defaultImage;
2475		return entry;
2476		}
2477	}	}
2478
2479	line = getLineByType(LT_LBA, config->theLines);	index = 0;
2480	if (line) printf("lba\n");	while ((entry = findEntryByIndex(cfg, index))) {
2481	}	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2482		int j, unmodifiedIndex;
2483	displayEntry(entry, prefix, i);
2484		unmodifiedIndex = index;
2485	i++;
2486	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	for (j = 0; j < unmodifiedIndex; j++) {
2487	displayEntry(entry, prefix, i);	entry2 = findEntryByIndex(cfg, j);
2488	i++;	if (entry2->skip)
2489	}	index--;
2490		}
2491		if (indexPtr)
2492		*indexPtr = index;
2493
2494	return 0;	return entry;
2495	}	}
2496
2497	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);
	}
2498	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
2499
2500	if (!entry->lines) {	fprintf(stderr,
2501	/* first one on the list */	_("grubby fatal error: unable to find a suitable template\n"));
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2502
2503	return newLine;	return NULL;
2504	}	}
2505
2506	/* val may be NULL */	char *findBootPrefix(void)
2507	struct singleLine *  addLine(struct singleEntry * entry,	{
2508	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 = "";
	}
	}
2509
2510	/* The last non-empty line gives us the indention to us and the line	stat("/", &sb);
2511	to insert after. Note that comments are considered empty lines, which	#ifdef __ia64__
2512	may not be ideal? If there are no lines or we are looking at the	stat("/boot/efi/EFI/redhat/", &sb2);
2513	first line, we use defaultIndent (the first line is normally indented	#else
2514	differently from the rest) */	stat("/boot", &sb2);
2515	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;
	}
2516
2517	struct singleLine *menuEntry;	if (sb.st_dev == sb2.st_dev)
2518	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;
	}
2519
2520	return addLineTmpl(entry, &tmpl, prev, val, cfi);	#ifdef __ia64__
2521		return strdup("/boot/efi/EFI/redhat/");
2522		#else
2523		return strdup("/boot");
2524		#endif
2525	}	}
2526
2527	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void markRemovedImage(struct grubConfig *cfg, const char *image,
2528	struct singleLine * prev;	const char *prefix)
2529	int i;	{
2530		struct singleEntry *entry;
2531
2532	for (i = 0; i < line->numElements; i++) {	if (!image)
2533	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2534
2535	if (line == entry->lines) {	/* check and see if we're removing the default image */
2536	entry->lines = line->next;	if (isdigit(*image)) {
2537	} else {	entry = findEntryByPath(cfg, image, prefix, NULL);
2538	prev = entry->lines;	if (entry)
2539	while (prev->next != line) prev = prev->next;	entry->skip = 1;
2540	prev->next = line->next;	return;
2541	}	}
2542
2543	free(line);	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2544		entry->skip = 1;
2545	}	}
2546
2547	static int isquote(char q)	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2548		const char *defaultKernelPath, int newBootEntryIsDefault,
2549		const char *prefix, int flags,
2550		int newDefaultBootEntryIndex, int newBootEntryIndex)
2551	{	{
2552	if (q == '\'' || q == '\"')	struct singleEntry *bootEntry, *newDefault;
2553	return 1;	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	return 0;
	}
2554
2555	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	/* initialize */
2556	{	currentLookupIndex = FIRST_ENTRY_INDEX;
	struct singleLine newLine = {
	.indent = tmplLine->indent,
	.type = tmplLine->type,
	.next = tmplLine->next,
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
2557
2558	line->elements = realloc(line->elements, (line->numElements + 1) *	/* handle the two cases where the user explictly picks the default
2559	sizeof(*line->elements));	* boot entry index as it would exist post-modification */
	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] = ' ';
	}
2560
2561	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	/* Case 1: user chose to make the latest boot entry the default */
2562	/* move the end-of-line forward */	if (newBootEntryIsDefault) {
2563	line->elements[insertHere].indent =	config->defaultImage = newBootEntryIndex;
2564	line->elements[insertHere-1].indent;	return;
2565	line->elements[insertHere-1].indent = strdup(indent);	}
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
2566
2567	line->numElements++;	/* Case 2: user picked an arbitrary index as the default boot entry */
2568		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2569		indexToVerify = newDefaultBootEntryIndex;
2570
2571	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	/* user chose to make latest boot entry the default */
2572	line->elements[0].item,	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2573	line->elements[insertHere].item,	config->defaultImage = newBootEntryIndex;
2574	line->elements[insertHere].indent,	return;
2575	insertHere);	}
	}
2576
2577	static void removeElement(struct singleLine * line, int removeHere) {	/* the user picks the default index based on the
2578	int i;	* order of the bootloader configuration after
2579		* modification; ensure we are checking for the
2580		* existence of the correct entry */
2581		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2582		if (!config->isModified)
2583		indexToVerify--;
2584		}
2585
2586	/* sanity check */	/* verify the user selected index will exist */
2587	if (removeHere >= line->numElements) return;	if (findEntryByIndex(config, indexToVerify)) {
2588		config->defaultImage = newDefaultBootEntryIndex;
2589		} else {
2590		config->defaultImage = NO_DEFAULT_ENTRY;
2591		}
2592
2593	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	return;
2594	removeHere, line->elements[removeHere].item);	}
2595
2596	free(line->elements[removeHere].item);	/* handle cases where the index value may shift */
2597
2598	if (removeHere > 1) {	/* check validity of existing default or first-entry-found
2599	/* previous argument gets this argument's post-indentation */	selection */
2600	free(line->elements[removeHere-1].indent);	if (defaultKernelPath) {
2601	line->elements[removeHere-1].indent =	/* we must initialize this */
2602	line->elements[removeHere].indent;	firstKernelEntryIndex = 0;
2603	} else {	/* user requested first-entry-found */
2604	free(line->elements[removeHere].indent);	if (!findEntryByPath(config, defaultKernelPath,
2605	}	prefix, &firstKernelEntryIndex)) {
2606		/* don't change default if can't find match */
2607		config->defaultImage = NO_DEFAULT_ENTRY;
2608		return;
2609		}
2610
2611	/* now collapse the array, but don't bother to realloc smaller */	config->defaultImage = firstKernelEntryIndex;
	for (i = removeHere; i < line->numElements - 1; i++)
	line->elements[i] = line->elements[i + 1];
	line->numElements--;
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements;
	int doreplace;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
	}
	}
2612
2613	if (!removeArgs) {	/* this is where we start looking for decrement later */
2614	oldArgs = malloc(sizeof(*oldArgs));	currentLookupIndex = config->defaultImage;
	*oldArgs = NULL;
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
	}
	}
2615
2616		if (isAddingBootEntry && !config->isModified &&
2617		(newBootEntryIndex < config->defaultImage)) {
2618		/* increment because new entry added before default */
2619		config->defaultImage++;
2620		}
2621		} else {
2622		/* check to see if the default is stored in the environment */
2623		if (config->defaultImage < FIRST_ENTRY_INDEX) {
2624		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2625		{
2626		if (config->cfi->defaultIsSaved) {
2627		if (config->cfi->getEnv) {
2628		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2629
2630		if (defaultTitle) {
2631		if (isnumber(defaultTitle)) {
2632		currentLookupIndex = atoi(defaultTitle);
2633		} else {
2634		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2635		}
2636		/* set the default Image to an actual index */
2637		config->defaultImage = currentLookupIndex;
2638		}
2639		}
2640		}
2641		}
2642		} else {
2643		/* use pre-existing default entry from the file*/
2644		currentLookupIndex = config->defaultImage;
2645		}
2646
2647	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	if (isAddingBootEntry
2648	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	&& (newBootEntryIndex <= config->defaultImage)) {
2649		config->defaultImage++;
2650
2651	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	if (config->isModified) {
2652	&& !multibootArgs);	currentLookupIndex++;
2653		}
2654		}
2655		}
2656
2657	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	/* sanity check - is this entry index valid? */
2658		bootEntry = findEntryByIndex(config, currentLookupIndex);
2659
2660	if (multibootArgs && !entry->multiboot)	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661	continue;	/* entry is to be skipped or is invalid */
2662		if (isAddingBootEntry) {
2663		config->defaultImage = newBootEntryIndex;
2664		return;
2665		}
2666		newDefault =
2667		findTemplate(config, prefix, &config->defaultImage, 1,
2668		flags);
2669		if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671		}
2672
2673	/* Determine where to put the args.  If this config supports	return;
	* LT_KERNELARGS, use that.  Otherwise use
	* 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;
2674	}	}
2675
2676	/* handle the elilo case which does:	currentLookupIndex--;
	*   append="hypervisor args -- kernel args"
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
2677
2678	if (i < line->numElements && doreplace) {	/* decrement index by the total number of entries deleted */
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
2679
2680	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	for (indexToVerify = currentLookupIndex;
2681	/* root= replacement */	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2682	rootLine = getLineByType(LT_ROOT, entry->lines);
2683	if (rootLine) {	bootEntry = findEntryByIndex(config, indexToVerify);
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
	}
	}
2684
2685	else {	if (bootEntry && bootEntry->skip) {
2686	/* insert/append */	config->defaultImage--;
2687	insertElement(line, *arg, i, cfg->cfi);	}
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
2688	}	}
2689	}	}
2690
2691	free(newArgs);	void setFallbackImage(struct grubConfig *config, int hasNew)
2692	free(oldArgs);	{
2693		struct singleEntry *entry, *entry2;
2694		int j;
2695
2696	return 0;	if (config->fallbackImage == -1)
2697	}	return;
2698
2699	int updateImage(struct grubConfig * cfg, const char * image,	entry = findEntryByIndex(config, config->fallbackImage);
2700	const char * prefix, const char * addArgs,	if (!entry || entry->skip) {
2701	const char * removeArgs,	config->fallbackImage = -1;
2702	const char * addMBArgs, const char * removeMBArgs) {	return;
	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;
2703	}	}
2704
2705	break;	if (hasNew)
2706	}	config->fallbackImage++;
2707
2708	return 0;	/* count the number of entries erased before this one */
2709		for (j = 0; j < config->fallbackImage; j++) {
2710		entry2 = findEntryByIndex(config, j);
2711		if (entry2->skip)
2712		config->fallbackImage--;
2713		}
2714	}	}
2715
2716	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	int fd;	{
2718	unsigned char bootSect[512];	struct singleLine *line;
2719	int offset;	char *root = NULL;
2720		int i;
2721	fd = open(device, O_RDONLY);	int j;
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2722
2723	if (read(fd, bootSect, 512) != 512) {	printf("index=%d\n", index);
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	close(fd);
2724
2725	/* first three bytes should match, a jmp short should be in there */	line =
2726	if (memcmp(boot, bootSect, 3))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727	return 0;	entry->lines);
2728		if (!line) {
2729		printf("non linux entry\n");
2730		return;
2731		}
2732
2733	if (boot[1] == JMP_SHORT_OPCODE) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	offset = boot[2] + 2;	printf("kernel=%s\n", line->elements[1].item);
2735	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	else
2736	offset = (boot[3] << 8) + boot[2] + 2;	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
2737
2738	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (line->numElements >= 3) {
2739	return 0;	printf("args=\"");
2740		i = 2;
2741		while (i < line->numElements) {
2742		if (!strncmp(line->elements[i].item, "root=", 5)) {
2743		root = line->elements[i].item + 5;
2744		} else {
2745		printf("%s%s", line->elements[i].item,
2746		line->elements[i].indent);
2747		}
2748
2749	return 2;	i++;
2750	}	}
2751		printf("\"\n");
2752		} else {
2753		line = getLineByType(LT_KERNELARGS, entry->lines);
2754		if (line) {
2755		char *s;
2756
2757		printf("args=\"");
2758		i = 1;
2759		while (i < line->numElements) {
2760		if (!strncmp
2761		(line->elements[i].item, "root=", 5)) {
2762		root = line->elements[i].item + 5;
2763		} else {
2764		s = line->elements[i].item;
2765
2766	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	printf("%s%s", s,
2767	int fd;	line->elements[i].indent);
2768	char buf[65536];	}
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
2769
2770	/* it's on raid; we need to parse /proc/mdstat and check all of the	i++;
2771	*raw* devices listed in there */	}
2772
2773	if (!strncmp(mdDev, "/dev/", 5))	s = line->elements[i - 1].indent;
2774	mdDev += 5;	printf("\"\n");
2775		}
2776		}
2777
2778	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!root) {
2779	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	line = getLineByType(LT_ROOT, entry->lines);
2780	strerror(errno));	if (line && line->numElements >= 2)
2781	return 2;	root = line->elements[1].item;
2782	}	}
2783
2784	rc = read(fd, buf, sizeof(buf) - 1);	if (root) {
2785	if (rc < 0 || rc == (sizeof(buf) - 1)) {	char *s = alloca(strlen(root) + 1);
	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2786
2787	chptr = buf;	strcpy(s, root);
2788	while (*chptr) {	if (s[strlen(s) - 1] == '"')
2789	end = strchr(chptr, '\n');	s[strlen(s) - 1] = '\0';
2790	if (!end) break;	/* make sure the root doesn't have a trailing " */
2791	*end = '\0';	printf("root=%s\n", s);
2792		}
2793
2794	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	line =
2795	chptr[strlen(mdDev)] == ' ') {	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2796		entry->lines);
2797
2798	/* found the device */	if (line && line->numElements >= 2) {
2799	while (*chptr && *chptr != ':') chptr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2800	chptr++;	printf("initrd=");
2801	while (*chptr && isspace(*chptr)) chptr++;	else
2802		printf("initrd=%s", prefix);
	/* 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++;
	}
2803
2804	/*  we're good to go */	for (i = 1; i < line->numElements; i++)
2805	return 2;	printf("%s%s", line->elements[i].item,
2806		line->elements[i].indent);
2807		printf("\n");
2808	}	}
2809
2810	chptr = end + 1;	line = getLineByType(LT_TITLE, entry->lines);
2811	}	if (line) {
2812		char *entryTitle;
2813		/* if we can extractTitle, then it's a zipl config and
2814		* if not then we go ahead with what's existed prior */
2815		entryTitle = extractTitle(config, line);
2816		if (!entryTitle) {
2817		entryTitle=line->elements[1].item;
2818		}
2819		printf("title=%s\n", entryTitle);
2820		} else {
2821		char *title;
2822		line = getLineByType(LT_MENUENTRY, entry->lines);
2823		if (line) {
2824		title = grub2ExtractTitle(line);
2825		if (title)
2826		printf("title=%s\n", title);
2827		}
2828		}
2829
2830	fprintf(stderr,	for (j = 0, line = entry->lines; line; line = line->next) {
2831	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2832	mdDev);	if (!strncmp
2833	return 0;	(prefix, line->elements[1].item, strlen(prefix)))
2834		printf("mbmodule%d=", j);
2835		else
2836		printf("mbmodule%d=%s", j, prefix);
2837
2838		for (i = 1; i < line->numElements; i++)
2839		printf("%s%s", line->elements[i].item,
2840		line->elements[i].indent);
2841		printf("\n");
2842		j++;
2843		}
2844		}
2845	}	}
2846
2847	int checkForLilo(struct grubConfig * config) {	int isSuseSystem(void)
2848	int fd;	{
2849	unsigned char boot[512];	const char *path;
2850	struct singleLine * line;	const static char default_path[] = "/etc/SuSE-release";
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
2851
2852	if (line->numElements != 2) return 1;	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2853		path = default_path;
2854
2855	fd = open("/boot/boot.b", O_RDONLY);	if (!access(path, R_OK))
2856	if (fd < 0) {	return 1;
2857	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	return 0;
2858	"/boot/boot.b", strerror(errno));	}
	return 1;
	}
2859
2860	if (read(fd, boot, 512) != 512) {	int isSuseGrubConf(const char *path)
2861	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2862	"/boot/boot.b", strerror(errno));	FILE *grubConf;
2863	return 1;	char *line = NULL;
2864	}	size_t len = 0, res = 0;
2865	close(fd);
2866		grubConf = fopen(path, "r");
2867		if (!grubConf) {
2868		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2869		path);
2870		return 0;
2871		}
2872
2873		while ((res = getline(&line, &len, grubConf)) != -1) {
2874		if (!strncmp(line, "setup", 5)) {
2875		fclose(grubConf);
2876		free(line);
2877		return 1;
2878		}
2879		}
2880
2881	if (!strncmp("/dev/md", line->elements[1].item, 7))	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2882	return checkLiloOnRaid(line->elements[1].item, boot);	path);
2883
2884	return checkDeviceBootloader(line->elements[1].item, boot);	fclose(grubConf);
2885		free(line);
2886		return 0;
2887	}	}
2888
2889	int checkForGrub2(struct grubConfig * config) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2890	if (!access("/etc/grub.d/", R_OK))	{
2891	return 2;	FILE *grubConf;
2892		char *line = NULL;
2893		size_t res = 0, len = 0;
2894
2895	return 1;	if (!path)
2896	}	return 1;
2897		if (!lbaPtr)
2898		return 1;
2899
2900	int checkForGrub(struct grubConfig * config) {	grubConf = fopen(path, "r");
2901	int fd;	if (!grubConf)
2902	unsigned char bootSect[512];	return 1;
	char * boot;
2903
2904	if (parseSysconfigGrub(NULL, &boot))	while ((res = getline(&line, &len, grubConf)) != -1) {
2905	return 0;	if (line[res - 1] == '\n')
2906		line[res - 1] = '\0';
2907		else if (len > res)
2908		line[res] = '\0';
2909		else {
2910		line = realloc(line, res + 1);
2911		line[res] = '\0';
2912		}
2913
2914	/* assume grub is not installed -- not an error condition */	if (!strncmp(line, "setup", 5)) {
2915	if (!boot)	if (strstr(line, "--force-lba")) {
2916	return 0;	*lbaPtr = 1;
2917		} else {
2918		*lbaPtr = 0;
2919		}
2920		dbgPrintf("lba: %i\n", *lbaPtr);
2921		break;
2922		}
2923		}
2924
2925	fd = open("/boot/grub/stage1", O_RDONLY);	free(line);
2926	if (fd < 0)	fclose(grubConf);
	/* this doesn't exist if grub hasn't been installed */
2927	return 0;	return 0;
2928		}
2929
2930	if (read(fd, bootSect, 512) != 512) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2931	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2932	"/boot/grub/stage1", strerror(errno));	FILE *grubConf;
2933	close(fd);	char *line = NULL;
2934	return 1;	size_t res = 0, len = 0;
2935	}	char *lastParamPtr = NULL;
2936	close(fd);	char *secLastParamPtr = NULL;
2937		char installDeviceNumber = '\0';
2938		char *bounds = NULL;
2939
2940	return checkDeviceBootloader(boot, bootSect);	if (!path)
2941	}	return 1;
2942		if (!devicePtr)
2943		return 1;
2944
2945	int checkForExtLinux(struct grubConfig * config) {	grubConf = fopen(path, "r");
2946	int fd;	if (!grubConf)
2947	unsigned char bootSect[512];	return 1;
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
2948
2949	printf("entered: checkForExtLinux()\n");	while ((res = getline(&line, &len, grubConf)) != -1) {
2950		if (strncmp(line, "setup", 5))
2951		continue;
2952
2953		if (line[res - 1] == '\n')
2954		line[res - 1] = '\0';
2955		else if (len > res)
2956		line[res] = '\0';
2957		else {
2958		line = realloc(line, res + 1);
2959		line[res] = '\0';
2960		}
2961
2962	if (parseSysconfigGrub(NULL, &boot))	lastParamPtr = bounds = line + res;
	return 0;
2963
2964	/* assume grub is not installed -- not an error condition */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2965	if (!boot)	while (!isspace(*lastParamPtr))
2966	return 0;	lastParamPtr--;
2967		lastParamPtr++;
2968
2969		secLastParamPtr = lastParamPtr - 2;
2970		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2971
2972		if (lastParamPtr + 3 > bounds) {
2973		dbgPrintf("lastParamPtr going over boundary");
2974		fclose(grubConf);
2975		free(line);
2976		return 1;
2977		}
2978		if (!strncmp(lastParamPtr, "(hd", 3))
2979		lastParamPtr += 3;
2980		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2981
2982		/*
2983		* Second last parameter will decide wether last parameter is
2984		* an IMAGE_DEVICE or INSTALL_DEVICE
2985		*/
2986		while (!isspace(*secLastParamPtr))
2987		secLastParamPtr--;
2988		secLastParamPtr++;
2989
2990		if (secLastParamPtr + 3 > bounds) {
2991		dbgPrintf("secLastParamPtr going over boundary");
2992		fclose(grubConf);
2993		free(line);
2994		return 1;
2995		}
2996		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2997		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2998		secLastParamPtr += 3;
2999		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
3000		installDeviceNumber = *secLastParamPtr;
3001		} else {
3002		installDeviceNumber = *lastParamPtr;
3003		}
3004
3005	fd = open(executable, O_RDONLY);	*devicePtr = malloc(6);
3006	if (fd < 0)	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3007	/* this doesn't exist if grub hasn't been installed */	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3008	return 0;	fclose(grubConf);
3009		free(line);
3010		return 0;
3011		}
3012
3013	if (read(fd, bootSect, 512) != 512) {	free(line);
3014	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	fclose(grubConf);
	executable, strerror(errno));
3015	return 1;	return 1;
	}
	close(fd);
	return checkDeviceBootloader(boot, bootSect);
3016	}	}
3017
3018	static char * getRootSpecifier(char * str) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3019	char * idx, * rootspec = NULL;	{
3020		FILE *deviceMap;
3021		char *line = NULL;
3022		size_t res = 0, len = 0;
3023		char *devicePtr;
3024		char *bounds = NULL;
3025		const char *path;
3026		const static char default_path[] = "/boot/grub/device.map";
3027
3028	if (*str == '(') {	if (!device)
3029	idx = rootspec = strdup(str);	return 1;
3030	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (!bootPtr)
3031	*(++idx) = '\0';	return 1;
	}
	return rootspec;
	}
3032
3033	static char * getInitrdVal(struct grubConfig * config,	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3034	const char * prefix, struct singleLine *tmplLine,	path = default_path;
	const char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount)
	{
	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;
	}
3035
3036	initrdVal = end = malloc(totalSize);	dbgPrintf("opening grub device.map file from: %s\n", path);
3037		deviceMap = fopen(path, "r");
3038		if (!deviceMap)
3039		return 1;
3040
3041	end = stpcpy (end, newKernelInitrd + prefixLen);	while ((res = getline(&line, &len, deviceMap)) != -1) {
3042		if (!strncmp(line, "#", 1))
3043		continue;
3044
3045		if (line[res - 1] == '\n')
3046		line[res - 1] = '\0';
3047		else if (len > res)
3048		line[res] = '\0';
3049		else {
3050		line = realloc(line, res + 1);
3051		line[res] = '\0';
3052		}
3053
3054	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	devicePtr = line;
3055	for (i = 0; i < extraInitrdCount; i++) {	bounds = line + res;
	const char *extraInitrd;
	int j;
3056
3057	extraInitrd = extraInitrds[i] + prefixLen;	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058	/* Don't add entries that are already there */	devicePtr++;
3059	if (tmplLine != NULL) {	dbgPrintf("device: %s\n", devicePtr);
3060	for (j = 2; j < tmplLine->numElements; j++)
3061	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	if (!strncmp(devicePtr, device, strlen(device))) {
3062	break;	devicePtr += strlen(device);
3063		while (isspace(*devicePtr)
3064		&& ((devicePtr + 1) <= bounds))
3065		devicePtr++;
3066
3067	if (j != tmplLine->numElements)	*bootPtr = strdup(devicePtr);
3068	continue;	break;
3069		}
3070	}	}
3071
3072	*end++ = separatorChar;	free(line);
3073	end = stpcpy(end, extraInitrd);	fclose(deviceMap);
3074	}	return 0;
	return initrdVal;
3075	}	}
3076
3077	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3078	const char * prefix,	{
3079	char * newKernelPath, char * newKernelTitle,	char *grubDevice;
	char * newKernelArgs, char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount,
	char * newMBKernel, char * newMBKernelArgs) {
	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;
	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
	}
3080
3081	newKernelTitle = buf + 6;	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082	}	dbgPrintf("error looking for grub installation device\n");
3083		else
3084		dbgPrintf("grubby installation device: %s\n", grubDevice);
3085
3086	new = malloc(sizeof(*new));	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3087	new->skip = 0;	dbgPrintf("error looking for grub boot device\n");
3088	new->multiboot = 0;	else
3089	new->next = config->entries;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	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;
	}
3090
3091	if (template) {	free(grubDevice);
3092	for (masterLine = template->lines;	return 0;
3093	masterLine && (tmplLine = lineDup(masterLine));	}
	lineFree(tmplLine), masterLine = masterLine->next)
	{
	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (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);
	}
	}
3094
3095	} else {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3096	/* don't have a template, so start the entry with the	{
3097	* appropriate starting line	/*
3098		* This SuSE grub configuration file at this location is not your
3099		* average grub configuration file, but instead the grub commands
3100		* used to setup grub on that system.
3101	*/	*/
3102	switch (config->cfi->entryStart) {	const char *path;
3103	case LT_KERNEL:	const static char default_path[] = "/etc/grub.conf";
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3104
3105	case LT_HYPER:	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3106	newLine = addLine(new, config->cfi, LT_HYPER,	path = default_path;
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3107
3108	case LT_MENUENTRY: {	if (!isSuseGrubConf(path))
3109	char *nkt = malloc(strlen(newKernelTitle)+3);	return 1;
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLine(new, config->cfi, LT_MENUENTRY,
	config->primaryIndent, nkt);
	free(nkt);
	needs &= ~NEED_TITLE;
	needs |= NEED_END;
	break;
	}
	case LT_TITLE:
	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)
	char * templabel;
	int x = 0, y = 0;
	templabel = strdup(newKernelTitle);
	while( templabel[x]){
	if( templabel[x] == ' ' ){
	y = x;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
	}
	}
	x++;
	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
	}
	needs &= ~NEED_TITLE;
	break;
3110
3111	default:	if (lbaPtr) {
3112	abort();	*lbaPtr = 0;
3113		if (suseGrubConfGetLba(path, lbaPtr))
3114		return 1;
3115	}	}
	}
3116
3117	/* add the remainder of the lines, i.e. those that either	if (bootPtr) {
3118	* weren't present in the template, or in the case of no template,	*bootPtr = NULL;
3119	* all the lines following the entryStart.	suseGrubConfGetBoot(path, bootPtr);
3120	*/	}
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
	if (needs) {
	printf(_("grubby: needs=%d, aborting\n"), needs);
	abort();
	}
	if (updateImage(config, "0", prefix, newKernelArgs, NULL,
	newMBKernelArgs, NULL)) return 1;
3121
3122	return 0;	return 0;
3123	}	}
3124
3125	static void traceback(int signum)	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126	{	{
3127	void *array[40];	FILE *in;
3128	size_t size;	char buf[1024];
3129		char *chptr;
3130		char *start;
3131		char *param;
3132
3133	signal(SIGSEGV, SIG_DFL);	in = fopen("/etc/sysconfig/grub", "r");
3134	memset(array, '\0', sizeof (array));	if (!in)
	size = backtrace(array, 40);
	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",
	(unsigned long)size);
	backtrace_symbols_fd(array, size, STDERR_FILENO);
	exit(1);
	}
	int main(int argc, const char ** argv) {
	poptContext optCon;
	const char * grubConfig = NULL;
	char * outputFile = NULL;
	int arg = 0;
	int flags = 0;
	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);
3135	return 1;	return 1;
	}
	break;
	}
	}
3136
3137	if (arg < -1) {	if (lbaPtr)
3138	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	*lbaPtr = 0;
3139	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	if (bootPtr)
3140	poptStrerror(arg));	*bootPtr = NULL;
3141	return 1;
3142	}	while (fgets(buf, sizeof(buf), in)) {
3143		start = buf;
3144		while (isspace(*start))
3145		start++;
3146		if (*start == '#')
3147		continue;
3148
3149		chptr = strchr(start, '=');
3150		if (!chptr)
3151		continue;
3152		chptr--;
3153		while (*chptr && isspace(*chptr))
3154		chptr--;
3155		chptr++;
3156		*chptr = '\0';
3157
3158		param = chptr + 1;
3159		while (*param && isspace(*param))
3160		param++;
3161		if (*param == '=') {
3162		param++;
3163		while (*param && isspace(*param))
3164		param++;
3165		}
3166
3167	if ((chptr = poptGetArg(optCon))) {	chptr = param;
3168	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	while (*chptr && !isspace(*chptr))
3169	return 1;	chptr++;
3170	}	*chptr = '\0';
3171
3172		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3173		*lbaPtr = 1;
3174		else if (!strcmp(start, "boot") && bootPtr)
3175		*bootPtr = strdup(param);
3176		}
3177
3178	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	fclose(in);
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureGrub2) {
	cfi = &grub2ConfigType;
	} 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;
	}
3179
3180	if (!cfi) {	return 0;
3181	#ifdef __ia64__	}
	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
	}
3182
3183	if (!grubConfig) {	void dumpSysconfigGrub(void)
3184	if (cfi->findConfig)	{
3185	grubConfig = cfi->findConfig(cfi);	char *boot = NULL;
3186	if (!grubConfig)	int lba;
	grubConfig = cfi->defaultConfig;
	}
3187
3188	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (isSuseSystem()) {
3189	newKernelPath || removeKernelPath || makeDefault ||	if (parseSuseGrubConf(&lba, &boot)) {
3190	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	free(boot);
3191	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	return;
3192	"specified option"));	}
3193	return 1;	} else {
3194	}	if (parseSysconfigGrub(&lba, &boot)) {
3195		free(boot);
3196		return;
3197		}
3198		}
3199
3200	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if (lba)
3201	removeKernelPath)) {	printf("lba\n");
3202	fprintf(stderr, _("grubby: --default-kernel and --info may not "	if (boot) {
3203	"be used when adding or removing kernels\n"));	printf("boot=%s\n", boot);
3204	return 1;	free(boot);
3205	}	}
3206		}
3207
3208	if (newKernelPath && !newKernelTitle) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3209	fprintf(stderr, _("grubby: kernel title must be specified\n"));	{
3210	return 1;	int i = 0;
3211	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	struct singleEntry *entry;
3212	(newKernelInitrd && !updateKernelPath)||	struct singleLine *line;
3213	makeDefault || extraInitrdCount > 0)) {
3214	fprintf(stderr, _("grubby: kernel path expected\n"));	entry = findEntryByPath(config, kernel, prefix, &i);
3215	return 1;	if (!entry) {
3216	}	fprintf(stderr, _("grubby: kernel not found\n"));
3217		return 1;
3218		}
3219
3220	if (newKernelPath && updateKernelPath) {	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3221	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	be a better way */
3222	"not be used together"));	if (config->cfi == &grubConfigType) {
3223	return 1;	dumpSysconfigGrub();
3224	}	} else {
3225		line = getLineByType(LT_BOOT, config->theLines);
3226		if (line && line->numElements >= 1) {
3227		printf("boot=%s\n", line->elements[1].item);
3228		}
3229
3230	if (makeDefault && defaultKernel) {	line = getLineByType(LT_LBA, config->theLines);
3231	fprintf(stderr, _("grubby: --make-default and --default-kernel "	if (line)
3232	"may not be used together\n"));	printf("lba\n");
3233	return 1;	}
	} else if (defaultKernel && removeKernelPath &&
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
3234
3235	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	displayEntry(config, entry, prefix, i);
	fprintf(stderr, _("grubby: output file must be specified if stdin "
	"is used\n"));
	return 1;
	}
3236
3237	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	i++;
3238	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	displayEntry(config, entry, prefix, i);
3240	fprintf(stderr, _("grubby: no action specified\n"));	i++;
3241	return 1;	}
	}
3242
3243	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	return 0;
3244		}
3245
3246		struct singleLine *addLineTmpl(struct singleEntry *entry,
3247		struct singleLine *tmplLine,
3248		struct singleLine *prevLine,
3249		const char *val, struct configFileInfo *cfi)
3250		{
3251		struct singleLine *newLine = lineDup(tmplLine);
3252
3253	if (cfi->needsBootPrefix) {	if (isEfi && cfi == &grub2ConfigType) {
3254	if (!bootPrefix) {	enum lineType_e old = newLine->type;
3255	bootPrefix = findBootPrefix();	newLine->type = preferredLineType(newLine->type, cfi);
3256	if (!bootPrefix) return 1;	if (old != newLine->type)
3257	} else {	newLine->elements[0].item =
3258	/* this shouldn't end with a / */	getKeyByType(newLine->type, cfi);
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
3259	}	}
	} else {
	bootPrefix = "";
	}
3260
3261	if (!cfi->mbAllowExtraInitRds &&	if (val) {
3262	extraInitrdCount > 0) {	/* override the inherited value with our own.
3263	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	* This is a little weak because it only applies to elements[1]
3264	return 1;	*/
3265	}	if (newLine->numElements > 1)
3266		removeElement(newLine, 1);
3267		insertElement(newLine, val, 1, cfi);
3268
3269		/* but try to keep the rootspec from the template... sigh */
3270		if (tmplLine->
3271		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3272		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3273		LT_INITRD_16)) {
3274		char *rootspec =
3275		getRootSpecifier(tmplLine->elements[1].item);
3276		if (rootspec != NULL) {
3277		free(newLine->elements[1].item);
3278		newLine->elements[1].item =
3279		sdupprintf("%s%s", rootspec, val);
3280		}
3281		}
3282		}
3283
3284	if (bootloaderProbe) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	newLine->elements[0].item : "");
	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");
3286
3287	return 0;	if (!entry->lines) {
3288	}	/* first one on the list */
3289		entry->lines = newLine;
3290		} else if (prevLine) {
3291		/* add after prevLine */
3292		newLine->next = prevLine->next;
3293		prevLine->next = newLine;
3294		}
3295
3296	config = readConfig(grubConfig, cfi);	return newLine;
3297	if (!config) return 1;	}
3298
3299	if (displayDefault) {	/* val may be NULL */
3300	struct singleLine * line;	struct singleLine *addLine(struct singleEntry *entry,
3301	struct singleEntry * entry;	struct configFileInfo *cfi,
3302	char * rootspec;	enum lineType_e type, char *defaultIndent,
3303		const char *val)
3304	if (config->defaultImage == -1) return 0;	{
3305	entry = findEntryByIndex(config, config->defaultImage);	struct singleLine *line, *prev;
3306	if (!entry) return 0;	struct keywordTypes *kw;
3307	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;	struct singleLine tmpl;
3308
3309	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	/* NB: This function shouldn't allocate items on the heap, rather on
3310	if (!line) return 0;	* the stack since it calls addLineTmpl which will make copies.
3311		*/
3312	rootspec = getRootSpecifier(line->elements[1].item);	if (type == LT_TITLE && cfi->titleBracketed) {
3313	printf("%s%s\n", bootPrefix, line->elements[1].item +	/* we're doing a bracketed title (zipl) */
3314	((rootspec != NULL) ? strlen(rootspec) : 0));	tmpl.type = type;
3315		tmpl.numElements = 1;
3316		tmpl.elements = alloca(sizeof(*tmpl.elements));
3317		tmpl.elements[0].item = alloca(strlen(val) + 3);
3318		sprintf(tmpl.elements[0].item, "[%s]", val);
3319		tmpl.elements[0].indent = "";
3320		val = NULL;
3321		} else if (type == LT_MENUENTRY) {
3322		char *lineend = "--class gnu-linux --class gnu --class os {";
3323		if (!val) {
3324		fprintf(stderr,
3325		"Line type LT_MENUENTRY requires a value\n");
3326		abort();
3327		}
3328		kw = getKeywordByType(type, cfi);
3329		if (!kw) {
3330		fprintf(stderr,
3331		"Looking up keyword for unknown type %d\n",
3332		type);
3333		abort();
3334		}
3335		tmpl.indent = "";
3336		tmpl.type = type;
3337		tmpl.numElements = 3;
3338		tmpl.elements =
3339		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3340		tmpl.elements[0].item = kw->key;
3341		tmpl.elements[0].indent = alloca(2);
3342		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3343		tmpl.elements[1].item = (char *)val;
3344		tmpl.elements[1].indent = alloca(2);
3345		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3346		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3347		strcpy(tmpl.elements[2].item, lineend);
3348		tmpl.elements[2].indent = "";
3349		} else {
3350		kw = getKeywordByType(type, cfi);
3351		if (!kw) {
3352		fprintf(stderr,
3353		"Looking up keyword for unknown type %d\n",
3354		type);
3355		abort();
3356		}
3357		tmpl.type = type;
3358		tmpl.numElements = val ? 2 : 1;
3359		tmpl.elements =
3360		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3361		tmpl.elements[0].item = kw->key;
3362		tmpl.elements[0].indent = alloca(2);
3363		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3364		if (val) {
3365		tmpl.elements[1].item = (char *)val;
3366		tmpl.elements[1].indent = "";
3367		}
3368		}
3369
3370		/* The last non-empty line gives us the indention to us and the line
3371		* to insert after. Note that comments are considered empty lines,
3372		* which may not be ideal? If there are no lines or we are looking at
3373		* the first line, we use defaultIndent (the first line is normally
3374		* indented differently from the rest) */
3375		for (line = entry->lines, prev = NULL; line; line = line->next) {
3376		if (line->numElements)
3377		prev = line;
3378		/* fall back on the last line if prev isn't otherwise set */
3379		if (!line->next && !prev)
3380		prev = line;
3381		}
3382
3383		struct singleLine *menuEntry;
3384		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3385		if (tmpl.type == LT_ENTRY_END) {
3386		if (menuEntry)
3387		tmpl.indent = menuEntry->indent;
3388		else
3389		tmpl.indent = defaultIndent ? : "";
3390		} else if (tmpl.type != LT_MENUENTRY) {
3391		if (menuEntry)
3392		tmpl.indent = "\t";
3393		else if (prev == entry->lines)
3394		tmpl.indent = defaultIndent ? : "";
3395		else
3396		tmpl.indent = prev->indent;
3397		}
3398
3399		return addLineTmpl(entry, &tmpl, prev, val, cfi);
3400		}
3401
3402		void removeLine(struct singleEntry *entry, struct singleLine *line)
3403		{
3404		struct singleLine *prev;
3405		int i;
3406
3407		for (i = 0; i < line->numElements; i++) {
3408		free(line->elements[i].item);
3409		free(line->elements[i].indent);
3410		}
3411		free(line->elements);
3412		free(line->indent);
3413
3414		if (line == entry->lines) {
3415		entry->lines = line->next;
3416		} else {
3417		prev = entry->lines;
3418		while (prev->next != line)
3419		prev = prev->next;
3420		prev->next = line->next;
3421		}
3422
3423		free(line);
3424		}
3425
3426		static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3427		{
3428		struct singleLine newLine = {
3429		.indent = tmplLine->indent,
3430		.type = tmplLine->type,
3431		.next = tmplLine->next,
3432		};
3433		int firstQuotedItem = -1;
3434		int quoteLen = 0;
3435		int j;
3436		int element = 0;
3437		char *c;
3438
3439		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3440		strcpy(c, tmplLine->elements[0].item);
3441		insertElement(&newLine, c, element++, cfi);
3442		free(c);
3443		c = NULL;
3444
3445		for (j = 1; j < tmplLine->numElements; j++) {
3446		if (firstQuotedItem == -1) {
3447		quoteLen += strlen(tmplLine->elements[j].item);
3448
3449		if (isquote(tmplLine->elements[j].item[0])) {
3450		firstQuotedItem = j;
3451		quoteLen +=
3452		strlen(tmplLine->elements[j].indent);
3453		} else {
3454		c = malloc(quoteLen + 1);
3455		strcpy(c, tmplLine->elements[j].item);
3456		insertElement(&newLine, c, element++, cfi);
3457		free(c);
3458		quoteLen = 0;
3459		}
3460		} else {
3461		int itemlen = strlen(tmplLine->elements[j].item);
3462		quoteLen += itemlen;
3463		quoteLen += strlen(tmplLine->elements[j].indent);
3464
3465		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3466		c = malloc(quoteLen + 1);
3467		c[0] = '\0';
3468		for (int i = firstQuotedItem; i < j + 1; i++) {
3469		strcat(c, tmplLine->elements[i].item);
3470		strcat(c, tmplLine->elements[i].indent);
3471		}
3472		insertElement(&newLine, c, element++, cfi);
3473		free(c);
3474
3475		firstQuotedItem = -1;
3476		quoteLen = 0;
3477		}
3478		}
3479		}
3480		while (tmplLine->numElements)
3481		removeElement(tmplLine, 0);
3482		if (tmplLine->elements)
3483		free(tmplLine->elements);
3484
3485		tmplLine->numElements = newLine.numElements;
3486		tmplLine->elements = newLine.elements;
3487		}
3488
3489		static void insertElement(struct singleLine *line,
3490		const char *item, int insertHere,
3491		struct configFileInfo *cfi)
3492		{
3493		struct keywordTypes *kw;
3494		char indent[2] = "";
3495
3496		/* sanity check */
3497		if (insertHere > line->numElements) {
3498		dbgPrintf
3499		("insertElement() adjusting insertHere from %d to %d\n",
3500		insertHere, line->numElements);
3501		insertHere = line->numElements;
3502		}
3503
3504		line->elements = realloc(line->elements, (line->numElements + 1) *
3505		sizeof(*line->elements));
3506		memmove(&line->elements[insertHere + 1],
3507		&line->elements[insertHere],
3508		(line->numElements - insertHere) * sizeof(*line->elements));
3509		line->elements[insertHere].item = strdup(item);
3510
3511		kw = getKeywordByType(line->type, cfi);
3512
3513		if (line->numElements == 0) {
3514		indent[0] = '\0';
3515		} else if (insertHere == 0) {
3516		indent[0] = kw->nextChar;
3517		} else if (kw->separatorChar != '\0') {
3518		indent[0] = kw->separatorChar;
3519		} else {
3520		indent[0] = ' ';
3521		}
3522
3523		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3524		/* move the end-of-line forward */
3525		line->elements[insertHere].indent =
3526		line->elements[insertHere - 1].indent;
3527		line->elements[insertHere - 1].indent = strdup(indent);
3528		} else {
3529		line->elements[insertHere].indent = strdup(indent);
3530		}
3531
3532		line->numElements++;
3533
3534		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3535		line->elements[0].item,
3536		line->elements[insertHere].item,
3537		line->elements[insertHere].indent, insertHere);
3538		}
3539
3540		static void removeElement(struct singleLine *line, int removeHere)
3541		{
3542		int i;
3543
3544		/* sanity check */
3545		if (removeHere >= line->numElements)
3546		return;
3547
3548		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3549		removeHere, line->elements[removeHere].item);
3550
3551		free(line->elements[removeHere].item);
3552
3553		if (removeHere > 1) {
3554		/* previous argument gets this argument's post-indentation */
3555		free(line->elements[removeHere - 1].indent);
3556		line->elements[removeHere - 1].indent =
3557		line->elements[removeHere].indent;
3558		} else {
3559		free(line->elements[removeHere].indent);
3560		}
3561
3562		/* now collapse the array, but don't bother to realloc smaller */
3563		for (i = removeHere; i < line->numElements - 1; i++)
3564		line->elements[i] = line->elements[i + 1];
3565
3566		line->numElements--;
3567		}
3568
3569		int argMatch(const char *one, const char *two)
3570		{
3571		char *first, *second;
3572		char *chptr;
3573
3574		first = strcpy(alloca(strlen(one) + 1), one);
3575		second = strcpy(alloca(strlen(two) + 1), two);
3576
3577		chptr = strchr(first, '=');
3578		if (chptr)
3579		*chptr = '\0';
3580
3581		chptr = strchr(second, '=');
3582		if (chptr)
3583		*chptr = '\0';
3584
3585		return strcmp(first, second);
3586		}
3587
3588		int updateActualImage(struct grubConfig *cfg, const char *image,
3589		const char *prefix, const char *addArgs,
3590		const char *removeArgs, int multibootArgs)
3591		{
3592		struct singleEntry *entry;
3593		struct singleLine *line, *rootLine;
3594		int index = 0;
3595		int i, k;
3596		const char **newArgs, **oldArgs;
3597		const char **arg;
3598		int useKernelArgs, useRoot;
3599		int firstElement;
3600		int *usedElements;
3601		int doreplace;
3602
3603		if (!image)
3604		return 0;
3605
3606		if (!addArgs) {
3607		newArgs = malloc(sizeof(*newArgs));
3608		*newArgs = NULL;
3609		} else {
3610		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3611		fprintf(stderr,
3612		_("grubby: error separating arguments '%s'\n"),
3613		addArgs);
3614		return 1;
3615		}
3616		}
3617
3618		if (!removeArgs) {
3619		oldArgs = malloc(sizeof(*oldArgs));
3620		*oldArgs = NULL;
3621		} else {
3622		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3623		fprintf(stderr,
3624		_("grubby: error separating arguments '%s'\n"),
3625		removeArgs);
3626		free(newArgs);
3627		return 1;
3628		}
3629		}
3630
3631		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3632		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3633
3634		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3635		&& !multibootArgs);
3636
3637		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3638
3639		if (multibootArgs && !entry->multiboot)
3640		continue;
3641
3642		/* Determine where to put the args.  If this config supports
3643		* LT_KERNELARGS, use that.  Otherwise use
3644		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3645		*/
3646		if (useKernelArgs) {
3647		line = getLineByType(LT_KERNELARGS, entry->lines);
3648		if (!line) {
3649		/* no LT_KERNELARGS, need to add it */
3650		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3651		cfg->secondaryIndent, NULL);
3652		}
3653		firstElement = 1;
3654
3655		} else if (multibootArgs) {
3656		line = getLineByType(LT_HYPER, entry->lines);
3657		if (!line) {
3658		/* a multiboot entry without LT_HYPER? */
3659		continue;
3660		}
3661		firstElement = 2;
3662
3663		} else {
3664		line =
3665		getLineByType(LT_KERNEL | LT_MBMODULE |
3666		LT_KERNEL_EFI | LT_KERNEL_16,
3667		entry->lines);
3668		if (!line) {
3669		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3670		continue;
3671		}
3672		firstElement = 2;
3673		}
3674
3675		/* handle the elilo case which does:
3676		*   append="hypervisor args -- kernel args"
3677		*/
3678		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3679		/* this is a multiboot entry, make sure there's
3680		* -- on the args line
3681		*/
3682		for (i = firstElement; i < line->numElements; i++) {
3683		if (!strcmp(line->elements[i].item, "--"))
3684		break;
3685		}
3686		if (i == line->numElements) {
3687		/* assume all existing args are kernel args,
3688		* prepend -- to make it official
3689		*/
3690		insertElement(line, "--", firstElement,
3691		cfg->cfi);
3692		i = firstElement;
3693		}
3694		if (!multibootArgs) {
3695		/* kernel args start after the -- */
3696		firstElement = i + 1;
3697		}
3698		} else if (cfg->cfi->mbConcatArgs) {
3699		/* this is a non-multiboot entry, remove hyper args */
3700		for (i = firstElement; i < line->numElements; i++) {
3701		if (!strcmp(line->elements[i].item, "--"))
3702		break;
3703		}
3704		if (i < line->numElements) {
3705		/* remove args up to -- */
3706		while (strcmp
3707		(line->elements[firstElement].item,
3708		"--"))
3709		removeElement(line, firstElement);
3710		/* remove -- */
3711		removeElement(line, firstElement);
3712		}
3713		}
3714
3715		usedElements = calloc(line->numElements, sizeof(*usedElements));
3716
3717		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3718
3719		doreplace = 1;
3720		for (i = firstElement; i < line->numElements; i++) {
3721		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3722		!strcmp(line->elements[i].item, "--")) {
3723		/* reached the end of hyper args, insert here */
3724		doreplace = 0;
3725		break;
3726		}
3727		if (usedElements[i])
3728		continue;
3729		if (!argMatch(line->elements[i].item, *arg)) {
3730		usedElements[i] = 1;
3731		break;
3732		}
3733		}
3734
3735		if (i < line->numElements && doreplace) {
3736		/* direct replacement */
3737		free(line->elements[i].item);
3738		line->elements[i].item = strdup(*arg);
3739
3740		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3741		/* root= replacement */
3742		rootLine = getLineByType(LT_ROOT, entry->lines);
3743		if (rootLine) {
3744		free(rootLine->elements[1].item);
3745		rootLine->elements[1].item =
3746		strdup(*arg + 5);
3747		} else {
3748		rootLine =
3749		addLine(entry, cfg->cfi, LT_ROOT,
3750		cfg->secondaryIndent,
3751		*arg + 5);
3752		}
3753		}
3754
3755		else {
3756		/* insert/append */
3757		insertElement(line, *arg, i, cfg->cfi);
3758		usedElements =
3759		realloc(usedElements,
3760		line->numElements *
3761		sizeof(*usedElements));
3762		memmove(&usedElements[i + 1], &usedElements[i],
3763		line->numElements - i - 1);
3764		usedElements[i] = 1;
3765
3766		/* if we updated a root= here even though
3767		* there is a LT_ROOT available we need to
3768		* remove the LT_ROOT entry (this will happen
3769		* if we switch from a device to a label) */
3770		if (useRoot && !strncmp(*arg, "root=", 5)) {
3771		rootLine =
3772		getLineByType(LT_ROOT,
3773		entry->lines);
3774		if (rootLine)
3775		removeLine(entry, rootLine);
3776		}
3777		}
3778		}
3779
3780		free(usedElements);
3781
3782		for (arg = oldArgs; *arg; arg++) {
3783		for (i = firstElement; i < line->numElements; i++) {
3784		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3785		!strcmp(line->elements[i].item, "--"))
3786		/* reached the end of hyper args, stop here */
3787		break;
3788		if (!argMatch(line->elements[i].item, *arg)) {
3789		removeElement(line, i);
3790		break;
3791		}
3792		}
3793		/* handle removing LT_ROOT line too */
3794		if (useRoot && !strncmp(*arg, "root=", 5)) {
3795		rootLine = getLineByType(LT_ROOT, entry->lines);
3796		if (rootLine)
3797		removeLine(entry, rootLine);
3798		}
3799		}
3800
3801		if (line->numElements == 1) {
3802		/* don't need the line at all (note it has to be a
3803		LT_KERNELARGS for this to happen */
3804		removeLine(entry, line);
3805		}
3806		}
3807
3808		free(newArgs);
3809		free(oldArgs);
3810
3811		return 0;
3812		}
3813
3814		int updateImage(struct grubConfig *cfg, const char *image,
3815		const char *prefix, const char *addArgs,
3816		const char *removeArgs,
3817		const char *addMBArgs, const char *removeMBArgs)
3818		{
3819		int rc = 0;
3820
3821		if (!image)
3822		return rc;
3823
3824		/* update the main args first... */
3825		if (addArgs || removeArgs)
3826		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3827		0);
3828		if (rc)
3829		return rc;
3830
3831		/* and now any multiboot args */
3832		if (addMBArgs || removeMBArgs)
3833		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3834		removeMBArgs, 1);
3835		return rc;
3836		}
3837
3838		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3839		const char *image, const char *prefix, const char *initrd,
3840		const char *title)
3841		{
3842		struct singleEntry *entry;
3843		struct singleLine *line, *kernelLine, *endLine = NULL;
3844		int index = 0;
3845
3846		if (!image)
3847		return 0;
3848
3849		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3850		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3851		if (!kernelLine)
3852		continue;
3853
3854		/* if title is supplied, the entry's title must match it. */
3855		if (title) {
3856		char *linetitle;
3857
3858		line =
3859		getLineByType(LT_TITLE | LT_MENUENTRY,
3860		entry->lines);
3861		if (!line)
3862		continue;
3863
3864		linetitle = extractTitle(cfg, line);
3865		if (!linetitle)
3866		continue;
3867		if (strcmp(title, linetitle)) {
3868		free(linetitle);
3869		continue;
3870		}
3871		free(linetitle);
3872		}
3873
3874		if (prefix) {
3875		int prefixLen = strlen(prefix);
3876		if (!strncmp(initrd, prefix, prefixLen))
3877		initrd += prefixLen;
3878		}
3879		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3880		if (endLine)
3881		removeLine(entry, endLine);
3882		line =
3883		addLine(entry, cfg->cfi,
3884		preferredLineType(LT_MBMODULE, cfg->cfi),
3885		kernelLine->indent, initrd);
3886		if (!line)
3887		return 1;
3888		if (endLine) {
3889		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3890		if (!line)
3891		return 1;
3892		}
3893
3894		break;
3895		}
3896
3897	return 0;	return 0;
3898		}
3899
3900		int updateInitrd(struct grubConfig *cfg, const char *image,
3901		const char *prefix, const char *initrd, const char *title)
3902		{
3903		struct singleEntry *entry;
3904		struct singleLine *line, *kernelLine, *endLine = NULL;
3905		int index = 0;
3906
3907		if (!image)
3908		return 0;
3909
3910		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3911		kernelLine =
3912		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3913		entry->lines);
3914		if (!kernelLine)
3915		continue;
3916
3917		/* if title is supplied, the entry's title must match it. */
3918		if (title) {
3919		char *linetitle;
3920
3921		line =
3922		getLineByType(LT_TITLE | LT_MENUENTRY,
3923		entry->lines);
3924		if (!line)
3925		continue;
3926
3927		linetitle = extractTitle(cfg, line);
3928		if (!linetitle)
3929		continue;
3930		if (strcmp(title, linetitle)) {
3931		free(linetitle);
3932		continue;
3933		}
3934		free(linetitle);
3935		}
3936
3937	} else if (displayDefaultTitle) {	line =
3938	struct singleLine * line;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3939	struct singleEntry * entry;	entry->lines);
3940		if (line)
3941	if (config->defaultImage == -1) return 0;	removeLine(entry, line);
3942	entry = findEntryByIndex(config, config->defaultImage);	if (prefix) {
3943	if (!entry) return 0;	int prefixLen = strlen(prefix);
3944		if (!strncmp(initrd, prefix, prefixLen))
3945	if (!configureGrub2) {	initrd += prefixLen;
3946	line = getLineByType(LT_TITLE, entry->lines);	}
3947	if (!line) return 0;	endLine = getLineByType(LT_ENTRY_END, entry->lines);
3948	printf("%s\n", line->elements[1].item);	if (endLine)
3949		removeLine(entry, endLine);
3950	} else {	enum lineType_e lt;
3951	int i;	switch (kernelLine->type) {
3952	size_t len;	case LT_KERNEL:
3953	char * start;	lt = LT_INITRD;
3954	char * tmp;	break;
3955		case LT_KERNEL_EFI:
3956	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	lt = LT_INITRD_EFI;
3957	line = getLineByType(LT_MENUENTRY, entry->lines);	break;
3958	if (!line) return 0;	case LT_KERNEL_16:
3959		lt = LT_INITRD_16;
3960	for (i = 0; i < line->numElements; i++) {	break;
3961		default:
3962	if (!strcmp(line->elements[i].item, "menuentry"))	lt = preferredLineType(LT_INITRD, cfg->cfi);
3963	continue;	}
3964		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3965	if (*line->elements[i].item == '\'')	if (!line)
3966	start = line->elements[i].item + 1;	return 1;
3967	else	if (endLine) {
3968	start = line->elements[i].item;	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3969		if (!line)
3970	len = strlen(start);	return 1;
3971	if (*(start + len - 1) == '\'') {	}
3972	tmp = strdup(start);
3973	*(tmp + len - 1) = '\0';	break;
	printf("%s", tmp);
	free(tmp);
	break;
	} else {
	printf("%s ", start);
	}
	}
	printf("\n");
3974	}	}
3975
3976	return 0;	return 0;
3977		}
3978
3979	} else if (displayDefaultIndex) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3980	if (config->defaultImage == -1) return 0;	{
3981	printf("%i\n", config->defaultImage);	int fd;
3982		unsigned char bootSect[512];
3983	} else if (kernelInfo)	int offset;
3984	return displayInfo(config, kernelInfo, bootPrefix);
3985		fd = open(device, O_RDONLY);
3986	if (copyDefault) {	if (fd < 0) {
3987	template = findTemplate(config, bootPrefix, NULL, 0, flags);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3988	if (!template) return 1;	device, strerror(errno));
3989	}	return 1;
3990		}
3991
3992	markRemovedImage(config, removeKernelPath, bootPrefix);	if (read(fd, bootSect, 512) != 512) {
3993	markRemovedImage(config, removeMBKernel, bootPrefix);	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3994	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	device, strerror(errno));
3995	bootPrefix, flags);	return 1;
3996	setFallbackImage(config, newKernelPath != NULL);	}
3997	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	close(fd);
3998	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;
3999	if (updateKernelPath && newKernelInitrd) {	/* first three bytes should match, a jmp short should be in there */
4000	if (updateInitrd(config, updateKernelPath, bootPrefix,	if (memcmp(boot, bootSect, 3))
4001	newKernelInitrd)) return 1;	return 0;
4002	}
4003	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (boot[1] == JMP_SHORT_OPCODE) {
4004	newKernelTitle, newKernelArgs, newKernelInitrd,	offset = boot[2] + 2;
4005	extraInitrds, extraInitrdCount,	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4006	newMBKernel, newMBKernelArgs)) return 1;	offset = (boot[3] << 8) + boot[2] + 2;
4007		} else if (boot[0] == JMP_SHORT_OPCODE) {
4008		offset = boot[1] + 2;
4009	if (numEntries(config) == 0) {	/*
4010	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	* it looks like grub, when copying stage1 into the mbr,
4011	"Not writing out new config.\n"));	* patches stage1 right after the JMP location, replacing
4012	return 1;	* other instructions such as JMPs for NOOPs. So, relax the
4013	}	* check a little bit by skipping those different bytes.
4014		*/
4015		if ((bootSect[offset + 1] == NOOP_OPCODE)
4016		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4017		offset = offset + 3;
4018		}
4019		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4020		offset = (boot[2] << 8) + boot[1] + 2;
4021		} else {
4022		return 0;
4023		}
4024
4025		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4026		return 0;
4027
4028		return 2;
4029		}
4030
4031		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4032		{
4033		int fd;
4034		char buf[65536];
4035		char *end;
4036		char *chptr;
4037		char *chptr2;
4038		int rc;
4039
4040		/* it's on raid; we need to parse /proc/mdstat and check all of the
4041		*raw* devices listed in there */
4042
4043		if (!strncmp(mdDev, "/dev/", 5))
4044		mdDev += 5;
4045
4046		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4047		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4048		strerror(errno));
4049		return 2;
4050		}
4051
4052		rc = read(fd, buf, sizeof(buf) - 1);
4053		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4054		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4055		strerror(errno));
4056		close(fd);
4057		return 2;
4058		}
4059		close(fd);
4060		buf[rc] = '\0';
4061
4062		chptr = buf;
4063		while (*chptr) {
4064		end = strchr(chptr, '\n');
4065		if (!end)
4066		break;
4067		*end = '\0';
4068
4069		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4070		chptr[strlen(mdDev)] == ' ') {
4071
4072		/* found the device */
4073		while (*chptr && *chptr != ':')
4074		chptr++;
4075		chptr++;
4076		while (*chptr && isspace(*chptr))
4077		chptr++;
4078
4079		/* skip the "active" bit */
4080		while (*chptr && !isspace(*chptr))
4081		chptr++;
4082		while (*chptr && isspace(*chptr))
4083		chptr++;
4084
4085		/* skip the raid level */
4086		while (*chptr && !isspace(*chptr))
4087		chptr++;
4088		while (*chptr && isspace(*chptr))
4089		chptr++;
4090
4091		/* everything else is partition stuff */
4092		while (*chptr) {
4093		chptr2 = chptr;
4094		while (*chptr2 && *chptr2 != '[')
4095		chptr2++;
4096		if (!*chptr2)
4097		break;
4098
4099		/* yank off the numbers at the end */
4100		chptr2--;
4101		while (isdigit(*chptr2) && chptr2 > chptr)
4102		chptr2--;
4103		chptr2++;
4104		*chptr2 = '\0';
4105
4106		/* Better, now we need the /dev/ back. We're
4107		* done with everything before this point, so
4108		* we can just put the /dev/ part there.
4109		* There will always be room. */
4110		memcpy(chptr - 5, "/dev/", 5);
4111		rc = checkDeviceBootloader(chptr - 5, boot);
4112		if (rc != 2) {
4113		return rc;
4114		}
4115
4116		chptr = chptr2 + 1;
4117		/* skip the [11] bit */
4118		while (*chptr && !isspace(*chptr))
4119		chptr++;
4120		/* and move to the next one */
4121		while (*chptr && isspace(*chptr))
4122		chptr++;
4123		}
4124
4125		/*  we're good to go */
4126		return 2;
4127		}
4128
4129		chptr = end + 1;
4130		}
4131
4132		fprintf(stderr,
4133		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4134		mdDev);
4135		return 0;
4136		}
4137
4138		int checkForLilo(struct grubConfig *config)
4139		{
4140		int fd;
4141		unsigned char boot[512];
4142		struct singleLine *line;
4143
4144		for (line = config->theLines; line; line = line->next)
4145		if (line->type == LT_BOOT)
4146		break;
4147
4148		if (!line) {
4149		fprintf(stderr,
4150		_
4151		("grubby: no boot line found in lilo configuration\n"));
4152		return 1;
4153		}
4154
4155		if (line->numElements != 2)
4156		return 1;
4157
4158		fd = open("/boot/boot.b", O_RDONLY);
4159		if (fd < 0) {
4160		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4161		"/boot/boot.b", strerror(errno));
4162		return 1;
4163		}
4164
4165		if (read(fd, boot, 512) != 512) {
4166		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4167		"/boot/boot.b", strerror(errno));
4168		return 1;
4169		}
4170		close(fd);
4171
4172		if (!strncmp("/dev/md", line->elements[1].item, 7))
4173		return checkLiloOnRaid(line->elements[1].item, boot);
4174
4175		return checkDeviceBootloader(line->elements[1].item, boot);
4176		}
4177
4178		int checkForGrub2(struct grubConfig *config)
4179		{
4180		if (!access("/etc/grub.d/", R_OK))
4181		return 2;
4182
4183		return 1;
4184		}
4185
4186		int checkForGrub(struct grubConfig *config)
4187		{
4188		int fd;
4189		unsigned char bootSect[512];
4190		char *boot;
4191		int onSuse = isSuseSystem();
4192
4193		if (onSuse) {
4194		if (parseSuseGrubConf(NULL, &boot))
4195		return 0;
4196		} else {
4197		if (parseSysconfigGrub(NULL, &boot))
4198		return 0;
4199		}
4200
4201		/* assume grub is not installed -- not an error condition */
4202		if (!boot)
4203		return 0;
4204
4205		fd = open("/boot/grub/stage1", O_RDONLY);
4206		if (fd < 0)
4207		/* this doesn't exist if grub hasn't been installed */
4208		return 0;
4209
4210		if (read(fd, bootSect, 512) != 512) {
4211		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4212		"/boot/grub/stage1", strerror(errno));
4213		close(fd);
4214		return 1;
4215		}
4216		close(fd);
4217
4218		/* The more elaborate checks do not work on SuSE. The checks done
4219		* seem to be reasonble (at least for now), so just return success
4220		*/
4221		if (onSuse)
4222		return 2;
4223
4224		return checkDeviceBootloader(boot, bootSect);
4225		}
4226
4227		int checkForExtLinux(struct grubConfig *config)
4228		{
4229		int fd;
4230		unsigned char bootSect[512];
4231		char *boot;
4232		char executable[] = "/boot/extlinux/extlinux";
4233
4234		printf("entered: checkForExtLinux()\n");
4235
4236		if (parseSysconfigGrub(NULL, &boot))
4237		return 0;
4238
4239		/* assume grub is not installed -- not an error condition */
4240		if (!boot)
4241		return 0;
4242
4243		fd = open(executable, O_RDONLY);
4244		if (fd < 0)
4245		/* this doesn't exist if grub hasn't been installed */
4246		return 0;
4247
4248		if (read(fd, bootSect, 512) != 512) {
4249		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4250		executable, strerror(errno));
4251		return 1;
4252		}
4253		close(fd);
4254
4255		return checkDeviceBootloader(boot, bootSect);
4256		}
4257
4258		int checkForYaboot(struct grubConfig *config)
4259		{
4260		/*
4261		* This is a simplistic check that we consider good enough for own puporses
4262		*
4263		* If we were to properly check if yaboot is *installed* we'd need to:
4264		* 1) get the system boot device (LT_BOOT)
4265		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4266		*    the content on the boot device
4267		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4268		* 4) check again if binary and boot device contents match
4269		*/
4270		if (!access("/etc/yaboot.conf", R_OK))
4271		return 2;
4272
4273		return 1;
4274		}
4275
4276		int checkForElilo(struct grubConfig *config)
4277		{
4278		if (!access("/etc/elilo.conf", R_OK))
4279		return 2;
4280
4281		return 1;
4282		}
4283
4284		static char *getRootSpecifier(char *str)
4285		{
4286		char *idx, *rootspec = NULL;
4287
4288		if (*str == '(') {
4289		idx = rootspec = strdup(str);
4290		while (*idx && (*idx != ')') && (!isspace(*idx)))
4291		idx++;
4292		*(++idx) = '\0';
4293		}
4294		return rootspec;
4295		}
4296
4297		static char *getInitrdVal(struct grubConfig *config,
4298		const char *prefix, struct singleLine *tmplLine,
4299		const char *newKernelInitrd,
4300		const char **extraInitrds, int extraInitrdCount)
4301		{
4302		char *initrdVal, *end;
4303		int i;
4304		size_t totalSize;
4305		size_t prefixLen;
4306		char separatorChar;
4307
4308		prefixLen = strlen(prefix);
4309		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4310
4311		for (i = 0; i < extraInitrdCount; i++) {
4312		totalSize += sizeof(separatorChar);
4313		totalSize += strlen(extraInitrds[i]) - prefixLen;
4314		}
4315
4316		initrdVal = end = malloc(totalSize);
4317
4318		end = stpcpy(end, newKernelInitrd + prefixLen);
4319
4320		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4321		for (i = 0; i < extraInitrdCount; i++) {
4322		const char *extraInitrd;
4323		int j;
4324
4325		extraInitrd = extraInitrds[i] + prefixLen;
4326		/* Don't add entries that are already there */
4327		if (tmplLine != NULL) {
4328		for (j = 2; j < tmplLine->numElements; j++)
4329		if (strcmp
4330		(extraInitrd,
4331		tmplLine->elements[j].item) == 0)
4332		break;
4333
4334		if (j != tmplLine->numElements)
4335		continue;
4336		}
4337
4338		*end++ = separatorChar;
4339		end = stpcpy(end, extraInitrd);
4340		}
4341
4342		return initrdVal;
4343		}
4344
4345		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4346		const char *prefix,
4347		const char *newKernelPath, const char *newKernelTitle,
4348		const char *newKernelArgs, const char *newKernelInitrd,
4349		const char **extraInitrds, int extraInitrdCount,
4350		const char *newMBKernel, const char *newMBKernelArgs,
4351		const char *newDevTreePath, int newIndex)
4352		{
4353		struct singleEntry *new, *entry, *prev = NULL;
4354		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4355		int needs;
4356		char *indexs;
4357		char *chptr;
4358		int rc;
4359
4360		if (!newKernelPath)
4361		return 0;
4362
4363		rc = asprintf(&indexs, "%d", newIndex);
4364		if (rc < 0)
4365		return 1;
4366
4367		/* if the newKernelTitle is too long silently munge it into something
4368		* we can live with. truncating is first check, then we'll just mess with
4369		* it until it looks better */
4370		if (config->cfi->maxTitleLength &&
4371		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4372		char *buf = alloca(config->cfi->maxTitleLength + 7);
4373		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4374		int i = 1;
4375
4376		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4377		newKernelTitle);
4378		while (findEntryByPath(config, buf, NULL, NULL)) {
4379		sprintf(numBuf, "%d", i++);
4380		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4381		}
4382
4383		newKernelTitle = buf + 6;
4384		}
4385
4386		new = malloc(sizeof(*new));
4387		new->skip = 0;
4388		new->multiboot = 0;
4389		new->lines = NULL;
4390		entry = config->entries;
4391		for (unsigned int i = 0; i < newIndex; i++) {
4392		if (!entry)
4393		break;
4394		prev = entry;
4395		entry = entry->next;
4396		}
4397		new->next = entry;
4398
4399		if (prev)
4400		prev->next = new;
4401		else
4402		config->entries = new;
4403
4404		/* copy/update from the template */
4405		needs = NEED_KERNEL | NEED_TITLE;
4406		if (newKernelInitrd)
4407		needs |= NEED_INITRD;
4408		if (newMBKernel) {
4409		needs |= NEED_MB;
4410		new->multiboot = 1;
4411		}
4412		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4413		needs |= NEED_DEVTREE;
4414
4415		if (template) {
4416		for (masterLine = template->lines;
4417		masterLine && (tmplLine = lineDup(masterLine));
4418		lineFree(tmplLine), masterLine = masterLine->next) {
4419		dbgPrintf("addNewKernel processing %d\n",
4420		tmplLine->type);
4421
4422		/* skip comments */
4423		chptr = tmplLine->indent;
4424		while (*chptr && isspace(*chptr))
4425		chptr++;
4426		if (*chptr == '#')
4427		continue;
4428
4429		if (iskernel(tmplLine->type)
4430		&& tmplLine->numElements >= 2) {
4431		if (!template->multiboot && (needs & NEED_MB)) {
4432		/* it's not a multiboot template and
4433		* this is the kernel line.  Try to
4434		* be intelligent about inserting the
4435		* hypervisor at the same time.
4436		*/
4437		if (config->cfi->mbHyperFirst) {
4438		/* insert the hypervisor first */
4439		newLine =
4440		addLine(new, config->cfi,
4441		LT_HYPER,
4442		tmplLine->indent,
4443		newMBKernel +
4444		strlen(prefix));
4445		/* set up for adding the
4446		* kernel line */
4447		free(tmplLine->indent);
4448		tmplLine->indent =
4449		strdup(config->
4450		secondaryIndent);
4451		needs &= ~NEED_MB;
4452		}
4453		if (needs & NEED_KERNEL) {
4454		/* use addLineTmpl to
4455		* preserve line elements,
4456		* otherwise we could just
4457		* call addLine.
4458		* Unfortunately this means
4459		* making some changes to the
4460		* template such as the
4461		* indent change above and
4462		* the type change below.
4463		*/
4464		struct keywordTypes *mbm_kw =
4465		getKeywordByType
4466		(LT_MBMODULE, config->cfi);
4467		if (mbm_kw) {
4468		tmplLine->type =
4469		LT_MBMODULE;
4470		free(tmplLine->
4471		elements[0].item);
4472		tmplLine->elements[0].
4473		item =
4474		strdup(mbm_kw->key);
4475		}
4476		newLine =
4477		addLineTmpl(new, tmplLine,
4478		newLine,
4479		newKernelPath +
4480		strlen(prefix),
4481		config->cfi);
4482		needs &= ~NEED_KERNEL;
4483		}
4484		if (needs & NEED_MB) { /* !mbHyperFirst */
4485		newLine =
4486		addLine(new, config->cfi,
4487		LT_HYPER,
4488		config->
4489		secondaryIndent,
4490		newMBKernel +
4491		strlen(prefix));
4492		needs &= ~NEED_MB;
4493		}
4494		} else if (needs & NEED_KERNEL) {
4495		newLine =
4496		addLineTmpl(new, tmplLine, newLine,
4497		newKernelPath +
4498		strlen(prefix),
4499		config->cfi);
4500		needs &= ~NEED_KERNEL;
4501		}
4502
4503		} else if (tmplLine->type == LT_HYPER &&
4504		tmplLine->numElements >= 2) {
4505		if (needs & NEED_MB) {
4506		newLine =
4507		addLineTmpl(new, tmplLine, newLine,
4508		newMBKernel +
4509		strlen(prefix),
4510		config->cfi);
4511		needs &= ~NEED_MB;
4512		}
4513
4514		} else if (tmplLine->type == LT_MBMODULE &&
4515		tmplLine->numElements >= 2) {
4516		if (new->multiboot) {
4517		if (needs & NEED_KERNEL) {
4518		newLine =
4519		addLineTmpl(new, tmplLine,
4520		newLine,
4521		newKernelPath +
4522		strlen(prefix),
4523		config->cfi);
4524		needs &= ~NEED_KERNEL;
4525		} else if (config->cfi->mbInitRdIsModule
4526		&& (needs & NEED_INITRD)) {
4527		char *initrdVal;
4528		initrdVal =
4529		getInitrdVal(config, prefix,
4530		tmplLine,
4531		newKernelInitrd,
4532		extraInitrds,
4533		extraInitrdCount);
4534		newLine =
4535		addLineTmpl(new, tmplLine,
4536		newLine,
4537		initrdVal,
4538		config->cfi);
4539		free(initrdVal);
4540		needs &= ~NEED_INITRD;
4541		}
4542		} else if (needs & NEED_KERNEL) {
4543		/* template is multi but new is not,
4544		* insert the kernel in the first
4545		* module slot
4546		*/
4547		tmplLine->type =
4548		preferredLineType(LT_KERNEL,
4549		config->cfi);
4550		free(tmplLine->elements[0].item);
4551		tmplLine->elements[0].item =
4552		strdup(getKeywordByType
4553		(tmplLine->type,
4554		config->cfi)->key);
4555		newLine =
4556		addLineTmpl(new, tmplLine, newLine,
4557		newKernelPath +
4558		strlen(prefix),
4559		config->cfi);
4560		needs &= ~NEED_KERNEL;
4561		} else if (needs & NEED_INITRD) {
4562		char *initrdVal;
4563		/* template is multi but new is not,
4564		* insert the initrd in the second
4565		* module slot
4566		*/
4567		tmplLine->type =
4568		preferredLineType(LT_INITRD,
4569		config->cfi);
4570		free(tmplLine->elements[0].item);
4571		tmplLine->elements[0].item =
4572		strdup(getKeywordByType
4573		(tmplLine->type,
4574		config->cfi)->key);
4575		initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLineTmpl(new, tmplLine, newLine,
4583		initrdVal, config->cfi);
4584		free(initrdVal);
4585		needs &= ~NEED_INITRD;
4586		}
4587
4588		} else if (isinitrd(tmplLine->type)
4589		&& tmplLine->numElements >= 2) {
4590		if (needs & NEED_INITRD && new->multiboot
4591		&& !template->multiboot
4592		&& config->cfi->mbInitRdIsModule) {
4593		/* make sure we don't insert the
4594		* module initrd before the module
4595		* kernel... if we don't do it here,
4596		* it will be inserted following the
4597		* template.
4598		*/
4599		if (!needs & NEED_KERNEL) {
4600		char *initrdVal;
4601
4602		initrdVal =
4603		getInitrdVal(config, prefix,
4604		tmplLine,
4605		newKernelInitrd,
4606		extraInitrds,
4607		extraInitrdCount);
4608		newLine =
4609		addLine(new, config->cfi,
4610		LT_MBMODULE,
4611		config->
4612		secondaryIndent,
4613		initrdVal);
4614		free(initrdVal);
4615		needs &= ~NEED_INITRD;
4616		}
4617		} else if (needs & NEED_INITRD) {
4618		char *initrdVal;
4619		initrdVal =
4620		getInitrdVal(config, prefix,
4621		tmplLine,
4622		newKernelInitrd,
4623		extraInitrds,
4624		extraInitrdCount);
4625		newLine =
4626		addLineTmpl(new, tmplLine, newLine,
4627		initrdVal, config->cfi);
4628		free(initrdVal);
4629		needs &= ~NEED_INITRD;
4630		}
4631
4632		} else if (tmplLine->type == LT_MENUENTRY &&
4633		(needs & NEED_TITLE)) {
4634		requote(tmplLine, config->cfi);
4635		char *nkt = malloc(strlen(newKernelTitle) + 3);
4636		strcpy(nkt, "'");
4637		strcat(nkt, newKernelTitle);
4638		strcat(nkt, "'");
4639		newLine =
4640		addLineTmpl(new, tmplLine, newLine, nkt,
4641		config->cfi);
4642		free(nkt);
4643		needs &= ~NEED_TITLE;
4644		} else if (tmplLine->type == LT_TITLE &&
4645		(needs & NEED_TITLE)) {
4646		if (tmplLine->numElements >= 2) {
4647		newLine =
4648		addLineTmpl(new, tmplLine, newLine,
4649		newKernelTitle,
4650		config->cfi);
4651		needs &= ~NEED_TITLE;
4652		} else if (tmplLine->numElements == 1 &&
4653		config->cfi->titleBracketed) {
4654		/* addLineTmpl doesn't handle
4655		* titleBracketed */
4656		newLine =
4657		addLine(new, config->cfi, LT_TITLE,
4658		tmplLine->indent,
4659		newKernelTitle);
4660		needs &= ~NEED_TITLE;
4661		}
4662		} else if (tmplLine->type == LT_ECHO) {
4663		requote(tmplLine, config->cfi);
4664		static const char *prefix = "'Loading ";
4665		if (tmplLine->numElements > 1 &&
4666		strstr(tmplLine->elements[1].item, prefix)
4667		&& masterLine->next
4668		&& iskernel(masterLine->next->type)) {
4669		char *newTitle =
4670		malloc(strlen(prefix) +
4671		strlen(newKernelTitle) + 2);
4672
4673		strcpy(newTitle, prefix);
4674		strcat(newTitle, newKernelTitle);
4675		strcat(newTitle, "'");
4676		newLine =
4677		addLine(new, config->cfi, LT_ECHO,
4678		tmplLine->indent, newTitle);
4679		free(newTitle);
4680		} else {
4681		/* pass through other lines from the
4682		* template */
4683		newLine =
4684		addLineTmpl(new, tmplLine, newLine,
4685		NULL, config->cfi);
4686		}
4687		} else if (tmplLine->type == LT_DEVTREE &&
4688		tmplLine->numElements == 2
4689		&& newDevTreePath) {
4690		newLine =
4691		addLineTmpl(new, tmplLine, newLine,
4692		newDevTreePath + strlen(prefix),
4693		config->cfi);
4694		needs &= ~NEED_DEVTREE;
4695		} else if (tmplLine->type == LT_ENTRY_END
4696		&& needs & NEED_DEVTREE) {
4697		const char *ndtp = newDevTreePath;
4698		if (!strncmp
4699		(newDevTreePath, prefix, strlen(prefix)))
4700		ndtp += strlen(prefix);
4701		newLine = addLine(new, config->cfi, LT_DEVTREE,
4702		config->secondaryIndent,
4703		ndtp);
4704		needs &= ~NEED_DEVTREE;
4705		newLine =
4706		addLineTmpl(new, tmplLine, newLine, NULL,
4707		config->cfi);
4708		} else {
4709		/* pass through other lines from the template */
4710		newLine =
4711		addLineTmpl(new, tmplLine, newLine, NULL,
4712		config->cfi);
4713		}
4714		}
4715
4716		} else {
4717		/* don't have a template, so start the entry with the
4718		* appropriate starting line
4719		*/
4720		switch (config->cfi->entryStart) {
4721		case LT_KERNEL:
4722		case LT_KERNEL_EFI:
4723		case LT_KERNEL_16:
4724		if (new->multiboot && config->cfi->mbHyperFirst) {
4725		/* fall through to LT_HYPER */
4726		} else {
4727		newLine = addLine(new, config->cfi,
4728		preferredLineType(LT_KERNEL,
4729		config->
4730		cfi),
4731		config->primaryIndent,
4732		newKernelPath +
4733		strlen(prefix));
4734		needs &= ~NEED_KERNEL;
4735		break;
4736		}
4737
4738		case LT_HYPER:
4739		newLine = addLine(new, config->cfi, LT_HYPER,
4740		config->primaryIndent,
4741		newMBKernel + strlen(prefix));
4742		needs &= ~NEED_MB;
4743		break;
4744
4745		case LT_MENUENTRY:{
4746		char *nkt = malloc(strlen(newKernelTitle) + 3);
4747		strcpy(nkt, "'");
4748		strcat(nkt, newKernelTitle);
4749		strcat(nkt, "'");
4750		newLine =
4751		addLine(new, config->cfi, LT_MENUENTRY,
4752		config->primaryIndent, nkt);
4753		free(nkt);
4754		needs &= ~NEED_TITLE;
4755		needs |= NEED_END;
4756		break;
4757		}
4758		case LT_TITLE:
4759		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4760		char *templabel;
4761		int x = 0, y = 0;
4762
4763		templabel = strdup(newKernelTitle);
4764		while (templabel[x]) {
4765		if (templabel[x] == ' ') {
4766		y = x;
4767		while (templabel[y]) {
4768		templabel[y] =
4769		templabel[y + 1];
4770		y++;
4771		}
4772		}
4773		x++;
4774		}
4775		newLine = addLine(new, config->cfi, LT_TITLE,
4776		config->primaryIndent,
4777		templabel);
4778		free(templabel);
4779		} else {
4780		newLine = addLine(new, config->cfi, LT_TITLE,
4781		config->primaryIndent,
4782		newKernelTitle);
4783		}
4784		needs &= ~NEED_TITLE;
4785		break;
4786
4787		default:
4788		abort();
4789		}
4790		}
4791
4792		struct singleLine *endLine = NULL;
4793		endLine = getLineByType(LT_ENTRY_END, new->lines);
4794		if (endLine) {
4795		removeLine(new, endLine);
4796		needs |= NEED_END;
4797		}
4798
4799		/* add the remainder of the lines, i.e. those that either
4800		* weren't present in the template, or in the case of no template,
4801		* all the lines following the entryStart.
4802		*/
4803		if (needs & NEED_TITLE) {
4804		newLine = addLine(new, config->cfi, LT_TITLE,
4805		config->secondaryIndent, newKernelTitle);
4806		needs &= ~NEED_TITLE;
4807		}
4808		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4809		newLine = addLine(new, config->cfi, LT_HYPER,
4810		config->secondaryIndent,
4811		newMBKernel + strlen(prefix));
4812		needs &= ~NEED_MB;
4813		}
4814		if (needs & NEED_KERNEL) {
4815		newLine = addLine(new, config->cfi,
4816		(new->multiboot
4817		&& getKeywordByType(LT_MBMODULE,
4818		config->cfi))
4819		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4820		config->
4821		cfi),
4822		config->secondaryIndent,
4823		newKernelPath + strlen(prefix));
4824		needs &= ~NEED_KERNEL;
4825		}
4826		if (needs & NEED_MB) {
4827		newLine = addLine(new, config->cfi, LT_HYPER,
4828		config->secondaryIndent,
4829		newMBKernel + strlen(prefix));
4830		needs &= ~NEED_MB;
4831		}
4832		if (needs & NEED_INITRD) {
4833		char *initrdVal;
4834		initrdVal =
4835		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4836		extraInitrds, extraInitrdCount);
4837		newLine =
4838		addLine(new, config->cfi,
4839		(new->multiboot
4840		&& getKeywordByType(LT_MBMODULE, config->cfi))
4841		? LT_MBMODULE : preferredLineType(LT_INITRD,
4842		config->cfi),
4843		config->secondaryIndent, initrdVal);
4844		free(initrdVal);
4845		needs &= ~NEED_INITRD;
4846		}
4847		if (needs & NEED_DEVTREE) {
4848		newLine = addLine(new, config->cfi, LT_DEVTREE,
4849		config->secondaryIndent, newDevTreePath);
4850		needs &= ~NEED_DEVTREE;
4851		}
4852
4853		/* NEEDS_END must be last on bootloaders that need it... */
4854		if (needs & NEED_END) {
4855		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4856		config->secondaryIndent, NULL);
4857		needs &= ~NEED_END;
4858		}
4859
4860		if (needs) {
4861		printf(_("grubby: needs=%d, aborting\n"), needs);
4862		abort();
4863		}
4864
4865		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4866		newMBKernelArgs, NULL)) {
4867		config->isModified = 1;
4868		return 1;
4869		}
4870
4871		return 0;
4872		}
4873
4874		int main(int argc, const char **argv)
4875		{
4876		poptContext optCon;
4877		const char *grubConfig = NULL;
4878		char *outputFile = NULL;
4879		int arg = 0;
4880		int flags = 0;
4881		int badImageOkay = 0;
4882		int configureGrub2 = 0;
4883		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4884		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4885		int configureExtLinux = 0;
4886		int bootloaderProbe = 0;
4887		int extraInitrdCount = 0;
4888		char *updateKernelPath = NULL;
4889		char *newKernelPath = NULL;
4890		char *removeKernelPath = NULL;
4891		char *newKernelArgs = NULL;
4892		char *newKernelInitrd = NULL;
4893		char *newKernelTitle = NULL;
4894		char *newDevTreePath = NULL;
4895		char *newMBKernel = NULL;
4896		char *newMBKernelArgs = NULL;
4897		int newIndex = 0;
4898		char *removeMBKernelArgs = NULL;
4899		char *removeMBKernel = NULL;
4900		char *bootPrefix = NULL;
4901		char *defaultKernel = NULL;
4902		char *removeArgs = NULL;
4903		char *kernelInfo = NULL;
4904		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4905		char *envPath = NULL;
4906		const char *chptr = NULL;
4907		struct configFileInfo *cfi = NULL;
4908		struct grubConfig *config;
4909		struct singleEntry *template = NULL;
4910		int copyDefault = 0, makeDefault = 0;
4911		int displayDefault = 0;
4912		int displayDefaultIndex = 0;
4913		int displayDefaultTitle = 0;
4914		int defaultIndex = -1;
4915		struct poptOption options[] = {
4916		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4917		_("add an entry for the specified kernel"), _("kernel-path")},
4918		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4919		_("add an entry for the specified multiboot kernel"), NULL},
4920		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4921		_("default arguments for the new kernel or new arguments for "
4922		"kernel being updated"), _("args")},
4923		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4924		_("default arguments for the new multiboot kernel or "
4925		"new arguments for multiboot kernel being updated"), NULL},
4926		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4927		_
4928		("don't sanity check images in boot entries (for testing only)"),
4929		NULL},
4930		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4931		_
4932		("filesystem which contains /boot directory (for testing only)"),
4933		_("bootfs")},
4934		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4935		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4936		_("check which bootloader is installed on boot sector")},
4937		#endif
4938		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4939		_("path to grub config file to update (\"-\" for stdin)"),
4940		_("path")},
4941		{"copy-default", 0, 0, &copyDefault, 0,
4942		_("use the default boot entry as a template for the new entry "
4943		"being added; if the default is not a linux image, or if "
4944		"the kernel referenced by the default image does not exist, "
4945		"the first linux entry whose kernel does exist is used as the "
4946		"template"), NULL},
4947		{"debug", 0, 0, &debug, 0,
4948		_("print debugging information for failures")},
4949		{"default-kernel", 0, 0, &displayDefault, 0,
4950		_("display the path of the default kernel")},
4951		{"default-index", 0, 0, &displayDefaultIndex, 0,
4952		_("display the index of the default kernel")},
4953		{"default-title", 0, 0, &displayDefaultTitle, 0,
4954		_("display the title of the default kernel")},
4955		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4956		_("device tree file for new stanza"), _("dtb-path")},
4957		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4958		_("device tree directory for new stanza"), _("dtb-path")},
4959		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4960		_("configure elilo bootloader")},
4961		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4962		_("force grub2 stanzas to use efi")},
4963		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4964		_("path for environment data"),
4965		_("path")},
4966		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4967		_("configure extlinux bootloader (from syslinux)")},
4968		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4969		_("configure grub bootloader")},
4970		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4971		_("configure grub2 bootloader")},
4972		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4973		_("display boot information for specified kernel"),
4974		_("kernel-path")},
4975		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4976		_("initrd image for the new kernel"), _("initrd-path")},
4977		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4978		_
4979		("auxiliary initrd image for things other than the new kernel"),
4980		_("initrd-path")},
4981		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4982		_("configure lilo bootloader")},
4983		{"make-default", 0, 0, &makeDefault, 0,
4984		_("make the newly added entry the default boot entry"), NULL},
4985		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4986		_("path to output updated config file (\"-\" for stdout)"),
4987		_("path")},
4988		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4989		_("remove kernel arguments"), NULL},
4990		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4991		_("remove multiboot kernel arguments"), NULL},
4992		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4993		_("remove all entries for the specified kernel"),
4994		_("kernel-path")},
4995		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4996		_("remove all entries for the specified multiboot kernel"),
4997		NULL},
4998		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4999		_("make the first entry referencing the specified kernel "
5000		"the default"), _("kernel-path")},
5001		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5002		_("make the given entry index the default entry"),
5003		_("entry-index")},
5004		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5005		_("use the given index when creating a new entry"),
5006		_("entry-index")},
5007		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5008		_("configure silo bootloader")},
5009		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5010		_("title to use for the new kernel entry"), _("entry-title")},
5011		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5012		_("updated information for the specified kernel"),
5013		_("kernel-path")},
5014		{"version", 'v', 0, NULL, 'v',
5015		_("print the version of this program and exit"), NULL},
5016		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5017		_("configure yaboot bootloader")},
5018		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5019		_("configure zipl bootloader")},
5020		POPT_AUTOHELP {0, 0, 0, 0, 0}
5021		};
5022
5023		useextlinuxmenu = 0;
5024
5025		int i = 0;
5026		for (int j = 1; j < argc; j++)
5027		i += strlen(argv[j]) + 1;
5028		saved_command_line = malloc(i);
5029		if (!saved_command_line) {
5030		fprintf(stderr, "grubby: %m\n");
5031		exit(1);
5032		}
5033		saved_command_line[0] = '\0';
5034		for (int j = 1; j < argc; j++) {
5035		strcat(saved_command_line, argv[j]);
5036		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5037		}
5038
5039		optCon = poptGetContext("grubby", argc, argv, options, 0);
5040		poptReadDefaultConfig(optCon, 1);
5041
5042		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5043		switch (arg) {
5044		case 'v':
5045		printf("grubby version %s\n", VERSION);
5046		exit(0);
5047		break;
5048		case 'i':
5049		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5050		extraInitrds[extraInitrdCount++] =
5051		strdup(poptGetOptArg(optCon));
5052		} else {
5053		fprintf(stderr,
5054		_
5055		("grubby: extra initrd maximum is %d\n"),
5056		extraInitrdCount);
5057		return 1;
5058		}
5059		break;
5060		}
5061		}
5062
5063		if (arg < -1) {
5064		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5065		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5066		poptStrerror(arg));
5067		return 1;
5068		}
5069
5070		if ((chptr = poptGetArg(optCon))) {
5071		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5072		return 1;
5073		}
5074
5075		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5076		configureYaboot + configureSilo + configureZipl +
5077		configureExtLinux) > 1) {
5078		fprintf(stderr,
5079		_("grubby: cannot specify multiple bootloaders\n"));
5080		return 1;
5081		} else if (bootloaderProbe && grubConfig) {
5082		fprintf(stderr,
5083		_
5084		("grubby: cannot specify config file with --bootloader-probe\n"));
5085		return 1;
5086		} else if (configureGrub2) {
5087		cfi = &grub2ConfigType;
5088		if (envPath)
5089		cfi->envFile = envPath;
5090		} else if (configureLilo) {
5091		cfi = &liloConfigType;
5092		} else if (configureGrub) {
5093		cfi = &grubConfigType;
5094		} else if (configureELilo) {
5095		cfi = &eliloConfigType;
5096		} else if (configureYaboot) {
5097		cfi = &yabootConfigType;
5098		} else if (configureSilo) {
5099		cfi = &siloConfigType;
5100		} else if (configureZipl) {
5101		cfi = &ziplConfigType;
5102		} else if (configureExtLinux) {
5103		cfi = &extlinuxConfigType;
5104		useextlinuxmenu = 1;
5105		}
5106
5107		if (!cfi) {
5108		if (grub2FindConfig(&grub2ConfigType)) {
5109		cfi = &grub2ConfigType;
5110		if (envPath)
5111		cfi->envFile = envPath;
5112		} else
5113		#ifdef __ia64__
5114		cfi = &eliloConfigType;
5115		#elif __powerpc__
5116		cfi = &yabootConfigType;
5117		#elif __sparc__
5118		cfi = &siloConfigType;
5119		#elif __s390__
5120		cfi = &ziplConfigType;
5121		#elif __s390x__
5122		cfi = &ziplConfigtype;
5123		#else
5124		cfi = &grubConfigType;
5125		#endif
5126		}
5127
5128		if (!grubConfig) {
5129		if (cfi->findConfig)
5130		grubConfig = cfi->findConfig(cfi);
5131		if (!grubConfig)
5132		grubConfig = cfi->defaultConfig;
5133		}
5134
5135		if (bootloaderProbe && (displayDefault || kernelInfo ||
5136		newKernelPath || removeKernelPath || makeDefault
5137		|| defaultKernel || displayDefaultIndex
5138		|| displayDefaultTitle
5139		|| (defaultIndex >= 0))) {
5140		fprintf(stderr,
5141		_("grubby: --bootloader-probe may not be used with "
5142		"specified option"));
5143		return 1;
5144		}
5145
5146		if ((displayDefault || kernelInfo) && (newKernelPath ||
5147		removeKernelPath)) {
5148		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5149		"be used when adding or removing kernels\n"));
5150		return 1;
5151		}
5152
5153		if (newKernelPath && !newKernelTitle) {
5154		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5155		return 1;
5156		} else if (!newKernelPath && (copyDefault ||
5157		(newKernelInitrd && !updateKernelPath) ||
5158		makeDefault || extraInitrdCount > 0)) {
5159		fprintf(stderr, _("grubby: kernel path expected\n"));
5160		return 1;
5161		}
5162
5163		if (newKernelPath && updateKernelPath) {
5164		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5165		"not be used together"));
5166		return 1;
5167		}
5168
5169		if (makeDefault && defaultKernel) {
5170		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5171		"may not be used together\n"));
5172		return 1;
5173		} else if (defaultKernel && removeKernelPath &&
5174		!strcmp(defaultKernel, removeKernelPath)) {
5175		fprintf(stderr,
5176		_("grubby: cannot make removed kernel the default\n"));
5177		return 1;
5178		} else if (defaultKernel && newKernelPath &&
5179		!strcmp(defaultKernel, newKernelPath)) {
5180		makeDefault = 1;
5181		defaultKernel = NULL;
5182		} else if (defaultKernel && (defaultIndex >= 0)) {
5183		fprintf(stderr,
5184		_("grubby: --set-default and --set-default-index "
5185		"may not be used together\n"));
5186		return 1;
5187		}
5188
5189		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5190		fprintf(stderr,
5191		_("grubby: output file must be specified if stdin "
5192		"is used\n"));
5193		return 1;
5194		}
5195
5196		if (!removeKernelPath && !newKernelPath && !displayDefault
5197		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5198		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5199		&& !displayDefaultTitle && (defaultIndex == -1)) {
5200		fprintf(stderr, _("grubby: no action specified\n"));
5201		return 1;
5202		}
5203
5204		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5205
5206		if (cfi->needsBootPrefix) {
5207		if (!bootPrefix) {
5208		bootPrefix = findBootPrefix();
5209		if (!bootPrefix)
5210		return 1;
5211		} else {
5212		/* this shouldn't end with a / */
5213		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5214		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5215		}
5216		} else {
5217		bootPrefix = "";
5218		}
5219
5220		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5221		fprintf(stderr,
5222		_("grubby: %s doesn't allow multiple initrds\n"),
5223		cfi->defaultConfig);
5224		return 1;
5225		}
5226
5227		if (bootloaderProbe) {
5228		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5229		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5230
5231		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5232		if (grub2config) {
5233		gconfig = readConfig(grub2config, &grub2ConfigType);
5234		if (!gconfig)
5235		gr2c = 1;
5236		else
5237		gr2c = checkForGrub2(gconfig);
5238		}
5239
5240		const char *grubconfig = grubFindConfig(&grubConfigType);
5241		if (!access(grubconfig, F_OK)) {
5242		gconfig = readConfig(grubconfig, &grubConfigType);
5243		if (!gconfig)
5244		grc = 1;
5245		else
5246		grc = checkForGrub(gconfig);
5247		}
5248
5249		if (!access(liloConfigType.defaultConfig, F_OK)) {
5250		lconfig =
5251		readConfig(liloConfigType.defaultConfig,
5252		&liloConfigType);
5253		if (!lconfig)
5254		lrc = 1;
5255		else
5256		lrc = checkForLilo(lconfig);
5257		}
5258
5259		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5260		econfig = readConfig(eliloConfigType.defaultConfig,
5261		&eliloConfigType);
5262		if (!econfig)
5263		erc = 1;
5264		else
5265		erc = checkForElilo(econfig);
5266		}
5267
5268		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5269		lconfig =
5270		readConfig(extlinuxConfigType.defaultConfig,
5271		&extlinuxConfigType);
5272		if (!lconfig)
5273		extrc = 1;
5274		else
5275		extrc = checkForExtLinux(lconfig);
5276		}
5277
5278		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5279		yconfig = readConfig(yabootConfigType.defaultConfig,
5280		&yabootConfigType);
5281		if (!yconfig)
5282		yrc = 1;
5283		else
5284		yrc = checkForYaboot(yconfig);
5285		}
5286
5287		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5288		|| erc == 1)
5289		return 1;
5290
5291		if (lrc == 2)
5292		printf("lilo\n");
5293		if (gr2c == 2)
5294		printf("grub2\n");
5295		if (grc == 2)
5296		printf("grub\n");
5297		if (extrc == 2)
5298		printf("extlinux\n");
5299		if (yrc == 2)
5300		printf("yaboot\n");
5301		if (erc == 2)
5302		printf("elilo\n");
5303
5304		return 0;
5305		}
5306
5307		if (grubConfig == NULL) {
5308		printf("Could not find bootloader configuration file.\n");
5309		exit(1);
5310		}
5311
5312		config = readConfig(grubConfig, cfi);
5313		if (!config)
5314		return 1;
5315
5316		if (displayDefault) {
5317		struct singleLine *line;
5318		struct singleEntry *entry;
5319		char *rootspec;
5320
5321		if (config->defaultImage == NO_DEFAULT_ENTRY)
5322		return 0;
5323		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5324		cfi->defaultIsSaved)
5325		config->defaultImage = FIRST_ENTRY_INDEX;
5326		entry = findEntryByIndex(config, config->defaultImage);
5327		if (!entry)
5328		return 0;
5329		if (!suitableImage(entry, bootPrefix, 0, flags))
5330		return 0;
5331
5332		line =
5333		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5334		LT_KERNEL_16, entry->lines);
5335		if (!line)
5336		return 0;
5337
5338		rootspec = getRootSpecifier(line->elements[1].item);
5339		printf("%s%s\n", bootPrefix, line->elements[1].item +
5340		((rootspec != NULL) ? strlen(rootspec) : 0));
5341
5342		return 0;
5343
5344		} else if (displayDefaultTitle) {
5345		struct singleLine *line;
5346		struct singleEntry *entry;
5347
5348		if (config->defaultImage == NO_DEFAULT_ENTRY)
5349		return 0;
5350		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5351		cfi->defaultIsSaved)
5352		config->defaultImage = FIRST_ENTRY_INDEX;
5353		entry = findEntryByIndex(config, config->defaultImage);
5354		if (!entry)
5355		return 0;
5356
5357		if (!configureGrub2) {
5358		char *title;
5359		line = getLineByType(LT_TITLE, entry->lines);
5360		if (!line)
5361		return 0;
5362		title = extractTitle(config, line);
5363		if (!title)
5364		return 0;
5365		printf("%s\n", title);
5366		free(title);
5367		} else {
5368		char *title;
5369
5370		dbgPrintf
5371		("This is GRUB2, default title is embeded in menuentry\n");
5372		line = getLineByType(LT_MENUENTRY, entry->lines);
5373		if (!line)
5374		return 0;
5375		title = grub2ExtractTitle(line);
5376		if (title)
5377		printf("%s\n", title);
5378		}
5379		return 0;
5380
5381		} else if (displayDefaultIndex) {
5382		if (config->defaultImage == NO_DEFAULT_ENTRY)
5383		return 0;
5384		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5385		cfi->defaultIsSaved)
5386		config->defaultImage = FIRST_ENTRY_INDEX;
5387		printf("%i\n", config->defaultImage);
5388		return 0;
5389
5390		} else if (kernelInfo)
5391		return displayInfo(config, kernelInfo, bootPrefix);
5392
5393		if (copyDefault) {
5394		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5395		if (!template)
5396		return 1;
5397		}
5398
5399		markRemovedImage(config, removeKernelPath, bootPrefix);
5400		markRemovedImage(config, removeMBKernel, bootPrefix);
5401		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5402		makeDefault, bootPrefix, flags, defaultIndex,
5403		newIndex);
5404		setFallbackImage(config, newKernelPath != NULL);
5405		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5406		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5407		return 1;
5408		if (updateKernelPath && newKernelInitrd) {
5409		if (newMBKernel) {
5410		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5411		bootPrefix, newKernelInitrd,
5412		newKernelTitle))
5413		return 1;
5414		} else {
5415		if (updateInitrd(config, updateKernelPath, bootPrefix,
5416		newKernelInitrd, newKernelTitle))
5417		return 1;
5418		}
5419		}
5420		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5421		newKernelTitle, newKernelArgs, newKernelInitrd,
5422		(const char **)extraInitrds, extraInitrdCount,
5423		newMBKernel, newMBKernelArgs, newDevTreePath,
5424		newIndex))
5425		return 1;
5426
5427		if (numEntries(config) == 0) {
5428		fprintf(stderr,
5429		_("grubby: doing this would leave no kernel entries. "
5430		"Not writing out new config.\n"));
5431		return 1;
5432		}
5433
5434	if (!outputFile)	if (!outputFile)
5435	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5436
5437	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5438	}	}

---

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Legend: Removed from v.1721   changed lines   Added in v.3135