Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1745 by niro, Sat Feb 18 01:05:52 2012 UTC	revision 3031 by niro, Tue Jun 27 14:48:09 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140		#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/etc/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
200	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	};	{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
248	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
249	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
250	"/boot/grub/grub.cfg",	};
251	NULL
252	};	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static int i = -1;	{
254	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256	if (i == -1) {	"/boot/grub/grub.cfg",
257	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
258	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
259	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396		}
397
398		int sizeOfSingleLine(struct singleLine *line)
399		{
400		int count = 0;
401
402		for (int i = 0; i < line->numElements; i++) {
403		int indentSize = 0;
404
405		count = count + strlen(line->elements[i].item);
406
407		indentSize = strlen(line->elements[i].indent);
408		if (indentSize > 0)
409		count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415		/* room for trailing terminator */
416		count = count + 1;
417
418		return count;
419		}
420
421		static int isquote(char q)
422		{
423		if (q == '\'' || q == '\"')
424		return 1;
425		return 0;
426		}
427
428	dbgPrintf("not found\n");	static int iskernel(enum lineType_e type)
429	return configFiles[i];	{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432		}
433
434		static int isinitrd(enum lineType_e type)
435		{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438		}
439
440		char *grub2ExtractTitle(struct singleLine *line)
441		{
442		char *current;
443		char *current_indent;
444		int current_len;
445		int current_indent_len;
446		int i;
447
448		/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452		i = 1;
453		current = line->elements[i].item;
454		current_len = strlen(current);
455
456		/* if second word is quoted, strip the quotes and return single word */
457		if (isquote(*current) && isquote(current[current_len - 1])) {
458		char *tmp;
459
460		tmp = strdup(current + 1);
461		if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496		}
497		return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 0,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785		}
786
787		static enum lineType_e preferredLineType(enum lineType_e type,
788		struct configFileInfo *cfi)
789		{
790		if (isEfi && cfi == &grub2ConfigType) {
791		switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812		}
813
814		static struct keywordTypes *getKeywordByType(enum lineType_e type,
815		struct configFileInfo *cfi)
816		{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822	}	}
823
824	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct keywordTypes *kt = getKeywordByType(type, cfi);	{
826	if (kt)	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	return kt->key;	if (kt)
828	return "unknown";	return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getpathbyspec(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_devname(blkid, device, NULL);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static char * getuuidbydev(char *device) {	static char *getuuidbydev(char *device)
841	if (!blkid)	{
842	blkid_get_cache(&blkid, NULL);	if (!blkid)
843		blkid_get_cache(&blkid, NULL);
844
845	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	struct keywordTypes * kw;	{
851	for (kw = cfi->keywords; kw->key; kw++) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
854	}	}
855	return LT_UNKNOWN;	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title;	/* bracketed title... let's extract it */
897	title = strdup(line->elements[0].item);	char *title = NULL;
898	title++;	if (line->type == LT_TITLE) {
899	*(title + strlen(title) - 1) = '\0';	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	return title;	if (cfg->cfi->titleBracketed) {
901	}	tmp++;
902		title = strdup(tmp);
903	static int readFile(int fd, char ** bufPtr) {	*(title + strlen(title) - 1) = '\0';
904	int alloced = 0, size = 0, i = 0;	} else {
905	char * buf = NULL;	title = strdup(tmp);
906		}
907	do {	} else if (line->type == LT_MENUENTRY)
908	size += i;	title = strdup(line->elements[1].item);
909	if ((size + 1024) > alloced) {	else
910	alloced += 4096;	return NULL;
911	buf = realloc(buf, alloced + 1);	return title;
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
	buf = realloc(buf, size + 2);
	if (size == 0)
	buf[size++] = '\n';
	else
	if (buf[size - 1] != '\n')
	buf[size++] = '\n';
	buf[size] = '\0';
	*bufPtr = buf;
	return 0;
912	}	}
913
914	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
915	line->indent = NULL;	{
916	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
917	line->numElements = 0;	char *buf = NULL;
	line->next = NULL;
	}
	struct singleLine * lineDup(struct singleLine * line) {
	int i;
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
918
919	return newLine;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineFree(struct singleLine * line) {	if (i < 0) {
928	int i;	fprintf(stderr, _("error reading input: %s\n"),
929		strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
935		if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
942
943	if (line->elements) free(line->elements);	return 0;
	lineInit(line);
944	}	}
945
946	static int lineWrite(FILE * out, struct singleLine * line,	static void lineInit(struct singleLine *line)
947	struct configFileInfo * cfi) {	{
948	int i;	line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953		}
954
955	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *lineDup(struct singleLine *line)
956		{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->next = NULL;
961	if (fputc('"', out) == EOF) return -1;	newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < newLine->numElements; i++) {
967	if (i < line->numElements - 1)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
972	if (fputc('"', out) == EOF) return -1;	}
973
974	if (fprintf(out, "\n") == -1) return -1;	static void lineFree(struct singleLine *line)
975		{
976		if (line->indent)
977		free(line->indent);
978
979	return 0;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984		if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191	line->elements[i].indent = strdup("");	}
1192	p = line->elements[i].item;	line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (!sawEntry && line->numElements) {	}
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1325
1326	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	entry->multiboot = 0;	sawEntry = 1;
1328	entry->lines = NULL;	if (!entry) {
1329	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	if (line->type == LT_SET_VARIABLE) {	entry->next = malloc(sizeof(*entry));
1333	int i;	entry = entry->next;
1334	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	}
	dbgPrintf("%s", line->indent);
	for (i = 0; i < line->numElements; i++)
	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1335
1336	for (i = 1; i < line->numElements; i++) {	entry->skip = 0;
1337	strcat(buf, line->elements[i].item);	entry->multiboot = 0;
1338	free(line->elements[i].item);	entry->lines = NULL;
1339		entry->next = NULL;
1340		}
1341
1342	if ((i + 1) != line->numElements) {	if (line->type == LT_SET_VARIABLE) {
1343	strcat(buf, line->elements[i].indent);	dbgPrintf("found 'set' command (%d elements): ",
1344	free(line->elements[i].indent);	line->numElements);
1345	}	dbgPrintf("%s", line->indent);
1346	}	for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	line->elements[1].indent =	line->elements[i].indent);
1349	line->elements[line->numElements - 1].indent;	dbgPrintf("\n");
1350	line->elements[1].item = buf;	struct keywordTypes *kwType =
1351	line->numElements = 2;	getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {	&& !strcmp(line->elements[1].item, kwType->key)
1354	/* Strip off any " which may be present; they'll be put back	&& !is_special_grub2_variable(
1355	on write. This is one of the few (the only?) places that grubby	line->elements[2].item)) {
1356	canonicalizes the output */	dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	if (line->numElements >= 2) {	defaultLine = line;
1359	int last, len;	}
1360		} else if (iskernel(line->type)) {
1361	if (*line->elements[1].item == '"')	/* if by some freak chance this is multiboot and the
1362	memmove(line->elements[1].item, line->elements[1].item + 1,	* "module" lines came earlier in the template, make
1363	strlen(line->elements[1].item + 1) + 1);	* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365	last = line->numElements - 1;	if (entry && entry->multiboot)
1366	len = strlen(line->elements[last].item) - 1;	line->type = LT_HYPER;
	if (line->elements[last].item[len] == '"')
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1367
1368	if (sawEntry) {	} else if (line->type == LT_MBMODULE) {
1369	if (!entry->lines)	/* go back and fix the LT_KERNEL line to indicate
1370	entry->lines = line;	* LT_HYPER instead, now that we know this is a
1371	else	* multiboot entry.  This only applies to grub, but
1372	last->next = line;	* that's the only place we should find LT_MBMODULE
1373	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	* lines anyway.
1374		*/
1375	/* we could have seen this outside of an entry... if so, we	for (struct singleLine * l = entry->lines; l;
1376	* ignore it like any other line we don't grok */	l = l->next) {
1377	if (line->type == LT_ENTRY_END && sawEntry)	if (l->type == LT_HYPER)
1378	sawEntry = 0;	break;
1379	} else {	else if (iskernel(l->type)) {
1380	if (!cfg->theLines)	l->type = LT_HYPER;
1381	cfg->theLines = line;	break;
1382	else	}
1383	last->next = line;	}
1384	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	entry->multiboot = 1;
	}
1385
1386	last = line;	} else if (line->type == LT_HYPER) {
1387	}	entry->multiboot = 1;
1388
1389	free(incoming);	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	for (int i = 1; i < line->numElements; i++) {
1409	if (defaultLine) {	strcat(buf, line->elements[i].item);
1410	if (cfi->defaultIsVariable) {	free(line->elements[i].item);
1411	char *value = defaultLine->elements[2].item;
1412	while (*value && (*value == '"' || *value == '\'' ||	if ((i + 1) != line->numElements) {
1413	*value == ' ' || *value == '\t'))	strcat(buf, line->elements[i].indent);
1414	value++;	free(line->elements[i].indent);
1415	cfg->defaultImage = strtol(value, &end, 10);	}
1416	while (*end && (*end == '"' || *end == '\'' ||	}
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1417
1418	if (entry){	line->elements[1].indent =
1419	cfg->defaultImage = i;	line->elements[line->numElements - 1].indent;
1420	}else{	line->elements[1].item = buf;
1421	cfg->defaultImage = -1;	line->numElements = 2;
1422	}	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	}	/* let --remove-kernel="TITLE=what" work */
1424	} else {	len = 0;
1425	cfg->defaultImage = 0;	char *extras;
1426	}	char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	return cfg;	/* allocate mem for extra flags. */
1438	}	extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	static void writeDefault(FILE * out, char * indent,	len = strlen(title);
1456	char * separator, struct grubConfig * cfg) {	if (title[len - 1] == quote_char) {
1457	struct singleEntry * entry;	strncat(buf, title, len - 1);
1458	struct singleLine * line;	break;
1459	int i;	} else {
1460		strcat(buf, title);
1461	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	strcat(buf, line->elements[i].indent);
1462		}
1463	if (cfg->defaultImage == DEFAULT_SAVED)	}
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1464
1465	entry = cfg->entries;	/* get extras */
1466	while (entry && entry->skip) entry = entry->next;	int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	i = 0;	if (!strcmp
1476	while (entry && i < image) {	(line->elements[i].item, "menuentry"))
1477	entry = entry->next;	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	while (entry && entry->skip) entry = entry->next;	len = strlen(line->elements[i].item);
	i++;
	}
1488
1489	if (!entry) return;	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	line = getLineByType(LT_TITLE, entry->lines);	/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (line && line->numElements >= 2)	if (isquote(*line->elements[1].item))
1511	fprintf(out, "%sdefault%s%s\n", indent, separator,	memmove(line->elements[1].item,
1512	line->elements[1].item);	line->elements[1].item + 1,
1513	else if (line && (line->numElements == 1) &&	strlen(line->elements[1].item +
1514	cfg->cfi->titleBracketed) {	1) + 1);
1515	fprintf(out, "%sdefault%s%s\n", indent, separator,
1516	extractTitle(line));	last = line->numElements - 1;
1517	}	len = strlen(line->elements[last].item) - 1;
1518	}	if (isquote(line->elements[last].item[len]))
1519	}	line->elements[last].item[len] = '\0';
1520	}	}
1521		}
1522
1523	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	FILE * out;	defaultLine = line;
1526	struct singleLine * line;	}
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1527
1528	line = cfg->theLines;	/* If we find a generic config option which should live at the
1529	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	top of the file, move it there. Old versions of grubby were
1530	while (line) {	probably responsible for putting new images in the wrong
1531	if (line->type == LT_SET_VARIABLE && defaultKw &&	place in front of it anyway. */
1532	line->numElements == 3 &&	if (sawEntry && line->type == LT_GENERIC) {
1533	!strcmp(line->elements[1].item, defaultKw->key)) {	struct singleLine **l = &cfg->theLines;
1534	writeDefault(out, line->indent, line->elements[0].indent, cfg);	struct singleLine **last_nonws = &cfg->theLines;
1535	needs &= ~MAIN_DEFAULT;	while (*l) {
1536	} else if (line->type == LT_DEFAULT) {	if ((*l)->type != LT_WHITESPACE)
1537	writeDefault(out, line->indent, line->elements[0].indent, cfg);	last_nonws = &((*l)->next);
1538	needs &= ~MAIN_DEFAULT;	l = &((*l)->next);
1539	} else if (line->type == LT_FALLBACK) {	}
1540	if (cfg->fallbackImage > -1)	line->next = *last_nonws;
1541	fprintf(out, "%s%s%s%d\n", line->indent,	*last_nonws = line;
1542	line->elements[0].item, line->elements[0].indent,	movedLine = 1;
1543	cfg->fallbackImage);	continue; /* without setting 'last' */
1544	} else {	}
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1545
1546	line = line->next;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1558	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1559	needs &= ~MAIN_DEFAULT;	entry->lines = line;
1560	}	else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	i = 0;	/* we could have seen this outside of an entry... if
1566	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1567	if (entry->skip) continue;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	line = entry->lines;	last = line;
	while (line) {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
1580	}	}
	}
1581
1582	if (tmpOutName) {	free(incoming);
1583	if (rename(tmpOutName, outName)) {
1584	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	tmpOutName, outName, strerror(errno));	if (defaultLine) {
1586	unlink(outName);	if (defaultLine->numElements > 2 &&
1587	return 1;	cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694	}	}
	}
1695
1696	return 0;	return cfg;
1697	}	}
1698
1699	static int numEntries(struct grubConfig *cfg) {	static void writeDefault(FILE * out, char *indent,
1700	int i = 0;	char *separator, struct grubConfig *cfg)
1701	struct singleEntry * entry;	{
1702		struct singleEntry *entry;
1703	entry = cfg->entries;	struct singleLine *line;
1704	while (entry) {	int i;
1705	if (!entry->skip)
1706	i++;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	entry = entry->next;	return;
1708	}
1709	return i;	if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824		outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828		tmpOutName = alloca(strlen(outName) + 2);
1829		sprintf(tmpOutName, "%s-", outName);
1830		out = fopen(tmpOutName, "w");
1831		if (!out) {
1832		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833		tmpOutName, strerror(errno));
1834		return 1;
1835		}
1836
1837		if (!stat(outName, &sb)) {
1838		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850		line = cfg->theLines;
1851		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852		while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881		line = line->next;
1882		}
1883
1884		if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889		i = 0;
1890		while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908		if (tmpOutName) {
1909		if (rename(tmpOutName, outName)) {
1910		fprintf(stderr,
1911		_("grubby: error moving %s to %s: %s\n"),
1912		tmpOutName, outName, strerror(errno));
1913		unlink(outName);
1914		return 1;
1915		}
1916		}
1917
1918		return 0;
1919		}
1920
1921		static int numEntries(struct grubConfig *cfg)
1922		{
1923		int i = 0;
1924		struct singleEntry *entry;
1925
1926		entry = cfg->entries;
1927		while (entry) {
1928		if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931		}
1932		return i;
1933	}	}
1934
1935	static char *findDiskForRoot()	static char *findDiskForRoot()
1936	{	{
1937	int fd;	int fd;
1938	char buf[65536];	char buf[65536];
1939	char *devname;	char *devname;
1940	char *chptr;	char *chptr;
1941	int rc;	int rc;
1942
1943		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944		fprintf(stderr, "grubby: failed to open %s: %s\n",
1945		_PATH_MOUNTED, strerror(errno));
1946		return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955		}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1961
1962	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1963	if (rc <= 0) {	devname = chptr;
1964	fprintf(stderr, "grubby: failed to read %s: %s\n",
1965	_PATH_MOUNTED, strerror(errno));	/*
1966	close(fd);	* The first column of a mtab entry is the device, but if the
1967	return NULL;	* entry is a special device it won't start with /, so move
1968	}	* on to the next line.
1969	close(fd);	*/
1970	buf[rc] = '\0';	if (*devname != '/') {
1971	chptr = buf;	chptr = strchr(chptr, '\n');
1972		if (chptr)
1973	while (chptr && chptr != buf+rc) {	chptr++;
1974	devname = chptr;	continue;
1975		}
1976	/*
1977	* The first column of a mtab entry is the device, but if the entry is a	/* Seek to the next space */
1978	* special device it won't start with /, so move on to the next line.	chptr = strchr(chptr, ' ');
1979	*/	if (!chptr) {
1980	if (*devname != '/') {	fprintf(stderr, "grubby: error parsing %s: %s\n",
1981	chptr = strchr(chptr, '\n');	_PATH_MOUNTED, strerror(errno));
1982	if (chptr)	return NULL;
1983	chptr++;	}
1984	continue;
1985	}	/*
1986		* The second column of a mtab entry is the mount point, we
1987	/* Seek to the next space */	* are looking for '/' obviously.
1988	chptr = strchr(chptr, ' ');	*/
1989	if (!chptr) {	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990	fprintf(stderr, "grubby: error parsing %s: %s\n",	/* remember the last / entry in mtab */
1991	_PATH_MOUNTED, strerror(errno));	foundanswer = devname;
1992	return NULL;	}
1993	}
1994		/* Next line */
1995	/*	chptr = strchr(chptr, '\n');
1996	* The second column of a mtab entry is the mount point, we are looking	if (chptr)
1997	* for '/' obviously.	chptr++;
1998	*/	}
1999	if (*(++chptr) == '/' && *(++chptr) == ' ') {
2000	/*	/* Return the last / entry found */
2001	* Move back 2, which is the first space after the device name, set	if (foundanswer) {
2002	* it to \0 so strdup will just get the devicename.	chptr = strchr(foundanswer, ' ');
2003	*/	*chptr = '\0';
2004	chptr -= 2;	return strdup(foundanswer);
2005	*chptr = '\0';	}
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
2006
2007	return NULL;	return NULL;
2008	}	}
2009
2010	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
2011	int i;	{
2012	struct singleLine * line;	int i;
2013		struct singleLine *line;
2014
2015	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2016	fprintf(stderr, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2017	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2018	fprintf(stderr, "%s%s",	/* Need to handle this, because we strip the quotes from
2019	line->elements[i].item, line->elements[i].indent);	* menuentry when read it. */
2020		if (line->type == LT_MENUENTRY && i == 1) {
2021		if (!isquote(*line->elements[i].item))
2022		log_message(f, "\'%s\'",
2023		line->elements[i].item);
2024		else
2025		log_message(f, "%s",
2026		line->elements[i].item);
2027		log_message(f, "%s", line->elements[i].indent);
2028
2029		continue;
2030		}
2031
2032		log_message(f, "%s%s",
2033		line->elements[i].item,
2034		line->elements[i].indent);
2035		}
2036		log_message(f, "\n");
2037	}	}
	fprintf(stderr, "\n");
	}
2038	}	}
2039
2040	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042	{	{
2043	va_list argp;	static int once;
2044		va_list argp, argq;
2045
2046	if (!debug)	va_start(argp, fmt);
	return;
2047
2048	va_start(argp, fmt);	va_copy(argq, argp);
2049	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2050	vfprintf(stderr, fmt, argp);	log_time(NULL);
2051	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2052	va_end(argp);	}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079	}	}
2080
2081	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1374  static int endswith(const char *s, char	Line 2084  static int endswith(const char *s, char
2084	{	{
2085	int slen;	int slen;
2086
2087	if (!s && !s[0])	if (!s || !s[0])
2088	return 0;	return 0;
2089	slen = strlen(s) - 1;	slen = strlen(s) - 1;
2090
2091	return s[slen] == c;	return s[slen] == c;
2092	}	}
2093
2094	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int skipRemoved, int flags) {	int skipRemoved, int flags)
2096	struct singleLine * line;	{
2097	char * fullName;	struct singleLine *line;
2098	int i;	char *fullName;
2099	char * dev;	int i;
2100	char * rootspec;	char *dev;
2101	char * rootdev;	char *rootspec;
2102		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2103
2104	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2105	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	notSuitablePrintf(entry, "no line found\n");	return 0;
2107	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2108
2109	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2110		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111		entry->lines);
2112		if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120		}
2121
2122	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2124	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2125	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2126
2127	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2128	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2129		rootspec = getRootSpecifier(line->elements[1].item);
2130		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132		beginswith(line->elements[1].item + rootspec_offset, '/');
2133		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135		if (access(fullName, R_OK)) {
2136		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137		return 0;
2138		}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144	} else {	} else {
2145	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2146	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2147	*/
2148	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2149		dev = line->elements[1].item;
2150	/* failed to find one */	} else {
2151	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2152	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153	return 0;	* for the args, so check that too.
2154	}	*/
2155		line =
2156	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2158	if (i < line->numElements)
2159	dev = line->elements[i].item + 5;	/* failed to find one */
2160	else {	if (!line) {
2161	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2162	/* it failed too...  can't find root= */	return 0;
2163	return 0;	}
2164	}
2165		for (i = 1; i < line->numElements; i++)
2166		if (!strncasecmp
2167		(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements)
2170		dev = line->elements[i].item + 5;
2171		else {
2172		notSuitablePrintf(entry, 0,
2173		"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
	}
2179
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2180	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2189	if (!rootdev) {	if (!rootdev) {
2190	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2191	return 0;	return 0;
2192	}	}
2193
2194	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2196	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2197	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2198	return 0;	free(rootdev);
2199	}	return 0;
2200		}
2201
2202	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2204	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2205	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2206	return 0;	free(rootdev);
2207	}	return 0;
2208		}
2209
2210	free(rootdev);	free(rootdev);
2211		notSuitablePrintf(entry, 1, "\n");
2212
2213	return 1;	return 1;
2214	}	}
2215
2216	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2217	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2218	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2220	int * index) {	int *index)
2221	struct singleEntry * entry = NULL;	{
2222	struct singleLine * line;	struct singleEntry *entry = NULL;
2223	int i;	struct singleLine *line;
2224	char * chptr;	int i;
2225	char * rootspec = NULL;	char *chptr;
2226	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228	if (isdigit(*kernel)) {
2229	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231	i = 0;
2232	indexVars[i] = strtol(kernel, &chptr, 10);	i = 0;
2233	while (*chptr == ',') {	indexVars[i] = strtol(kernel, &chptr, 10);
2234	i++;	while (*chptr == ',') {
2235	kernel = chptr + 1;	i++;
2236	indexVars[i] = strtol(kernel, &chptr, 10);	kernel = chptr + 1;
2237	}	indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	if (*chptr) {	if (*chptr) {
2241	/* can't parse it, bail */	/* can't parse it, bail */
2242	return NULL;	return NULL;
2243	}	}
2244
2245	indexVars[i + 1] = -1;	indexVars[i + 1] = -1;
	i = 0;
	if (index) {
	while (i < *index) i++;
	if (indexVars[i] == -1) return NULL;
	}
2246
2247	entry = findEntryByIndex(config, indexVars[i]);	i = 0;
2248	if (!entry) return NULL;	if (index) {
2249		while (i < *index) {
2250		i++;
2251		if (indexVars[i] == -1)
2252		return NULL;
2253		}
2254		}
2255
2256	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	entry = findEntryByIndex(config, indexVars[i]);
2257	if (!line) return NULL;	if (!entry)
2258		return NULL;
2259
2260		line =
2261		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262		LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269		}
2270
2271		if (!strcmp(kernel, "DEFAULT")) {
2272		if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274		} else {
2275		entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287		while ((entry = findEntryByIndex(config, i))) {
2288		if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	if (index) *index = indexVars[i];	if (entry && index)
2294	return entry;	*index = i;
2295	}	} else {
2296		if (index)
2297	if (!strcmp(kernel, "DEFAULT")) {	i = *index;
2298	if (index && *index > config->defaultImage) {	else
2299	entry = NULL;	i = 0;
2300	} else {
2301	entry = findEntryByIndex(config, config->defaultImage);	if (!strncmp(kernel, "TITLE=", 6)) {
2302	if (entry && entry->skip)	prefix = "";
2303	entry = NULL;	checkType = LT_TITLE | LT_MENUENTRY;
2304	else if (index)	kernel += 6;
2305	*index = config->defaultImage;	}
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2306
2307	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2308	if (!entry->skip) break;	entry = entry->next, i++) {
2309	i++;	if (entry->skip)
2310	}	continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346	if (entry && index)	/* make sure this entry has a kernel identifier; this skips
2347	*index = i;	* non-Linux boot entries (could find netbsd etc, though, which is
2348	} else {	* unfortunate)
2349	if (index)	*/
2350	i = *index;	if (line
2351	else	&& getLineByType(LT_KERNEL | LT_HYPER |
2352	i = 0;	LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357	if (!strncmp(kernel, "TITLE=", 6)) {	if (index)
2358	prefix = "";	*index = i;
	checkType = LT_TITLE;
	kernel += 6;
2359	}	}
2360
2361	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	return entry;
2362	if (entry->skip) continue;	}
	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);
	/* check all the lines matching checkType */
	for (line = entry->lines; line; line = line->next) {
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
2363
2364	if (line && line->numElements >= 2) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	rootspec = getRootSpecifier(line->elements[1].item);	int *index)
2366	if (!strcmp(line->elements[1].item +	{
2367	((rootspec != NULL) ? strlen(rootspec) : 0),	struct singleEntry *entry;
2368	kernel + strlen(prefix)))	struct singleLine *line;
2369		int i;
2370		char *newtitle;
2371
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373		if (index && i < *index)
2374		continue;
2375		line = getLineByType(LT_TITLE, entry->lines);
2376		if (!line)
2377		line = getLineByType(LT_MENUENTRY, entry->lines);
2378		if (!line)
2379		continue;
2380		newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382		continue;
2383		if (!strcmp(title, newtitle))
2384	break;	break;
	}
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2385	}	}
2386
2387	if (index) *index = i;	if (!entry)
2388	}	return NULL;
2389
2390	return entry;	if (index)
2391		*index = i;
2392		return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398
2399	entry = cfg->entries;	entry = cfg->entries;
2400	while (index && entry) {	while (index && entry) {
2401	entry = entry->next;	entry = entry->next;
2402	index--;	index--;
2403	}	}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1619  struct singleEntry * findEntryByIndex(st	Line 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->defaultImage > -1) {
2419	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2420	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2421	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2422	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423		if (defTitle) {
2424		int index = 0;
2425		if (isnumber(defTitle)) {
2426		index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467		return entry;
2468		}
2469
2470	return entry;	index++;
2471	}	}
2472
2473	index++;	fprintf(stderr,
2474	}	_("grubby fatal error: unable to find a suitable template\n"));
	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		struct singleEntry *entry;
	if (!image) return;
	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
	entry->skip = 1;
	}
	void setDefaultImage(struct grubConfig * config, int hasNew,
	const char * defaultKernelPath, int newIsDefault,
	const char * prefix, int flags) {
	struct singleEntry * entry, * entry2, * newDefault;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if (config->defaultImage == DEFAULT_SAVED)
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2504
2505	if (entry && !entry->skip) {	if (!image)
2506	/* we can preserve the default */	return;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
	}
2507
2508	void setFallbackImage(struct grubConfig * config, int hasNew) {	/* check and see if we're removing the default image */
2509	struct singleEntry * entry, * entry2;	if (isdigit(*image)) {
2510	int j;	entry = findEntryByPath(cfg, image, prefix, NULL);
2511		if (entry)
2512	if (config->fallbackImage == -1) return;	entry->skip = 1;
2513		return;
2514	entry = findEntryByIndex(config, config->fallbackImage);	}
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2515
2516	if (hasNew)	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	config->fallbackImage++;	entry->skip = 1;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
2518	}	}
2519
2520	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	struct singleLine * line;	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	char * root = NULL;	const char *prefix, int flags,
2523	int i;	int newDefaultBootEntryIndex, int newBootEntryIndex)
2524		{
2525	printf("index=%d\n", index);	struct singleEntry *bootEntry, *newDefault;
2526		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2527
2528	printf("kernel=%s\n", line->elements[1].item);	/* initialize */
2529		currentLookupIndex = FIRST_ENTRY_INDEX;
2530
2531	if (line->numElements >= 3) {	/* handle the two cases where the user explictly picks the default
2532	printf("args=\"");	* boot entry index as it would exist post-modification */
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2533
2534	i++;	/* Case 1: user chose to make the latest boot entry the default */
2535		if (newBootEntryIsDefault) {
2536		config->defaultImage = newBootEntryIndex;
2537		return;
2538	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2539
2540	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2541	i = 1;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2542	while (i < line->numElements) {	indexToVerify = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2543
2544	printf("%s%s", s, line->elements[i].indent);	/* user chose to make latest boot entry the default */
2545		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2546		config->defaultImage = newBootEntryIndex;
2547		return;
2548	}	}
2549
2550	i++;	/* the user picks the default index based on the
2551	}	* order of the bootloader configuration after
2552		* modification; ensure we are checking for the
2553		* existence of the correct entry */
2554		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2555		if (!config->isModified)
2556		indexToVerify--;
2557		}
2558
2559		/* verify the user selected index will exist */
2560		if (findEntryByIndex(config, indexToVerify)) {
2561		config->defaultImage = newDefaultBootEntryIndex;
2562		} else {
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564		}
2565
2566	s = line->elements[i - 1].indent;	return;
	printf("\"\n");
2567	}	}
	}
2568
2569	if (!root) {	/* handle cases where the index value may shift */
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2570
2571	if (root) {	/* check validity of existing default or first-entry-found
2572	char * s = alloca(strlen(root) + 1);	selection */
2573		if (defaultKernelPath) {
2574	strcpy(s, root);	/* we must initialize this */
2575	if (s[strlen(s) - 1] == '"')	firstKernelEntryIndex = 0;
2576	s[strlen(s) - 1] = '\0';	/* user requested first-entry-found */
2577	/* make sure the root doesn't have a trailing " */	if (!findEntryByPath(config, defaultKernelPath,
2578	printf("root=%s\n", s);	prefix, &firstKernelEntryIndex)) {
2579	}	/* don't change default if can't find match */
2580		config->defaultImage = NO_DEFAULT_ENTRY;
2581		return;
2582		}
2583
2584	line = getLineByType(LT_INITRD, entry->lines);	config->defaultImage = firstKernelEntryIndex;
2585
2586	if (line && line->numElements >= 2) {	/* this is where we start looking for decrement later */
2587	printf("initrd=%s", prefix);	currentLookupIndex = config->defaultImage;
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
	}
2588
2589	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	if (isAddingBootEntry && !config->isModified &&
2590	FILE * in;	(newBootEntryIndex < config->defaultImage)) {
2591	char buf[1024];	/* increment because new entry added before default */
2592	char * chptr;	config->defaultImage++;
2593	char * start;	}
2594	char * param;	} else {
2595		/* check to see if the default is stored in the environment */
2596	in = fopen("/etc/conf.d/grub", "r");	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2597	if (!in) return 1;	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2598		{
2599	if (lbaPtr) *lbaPtr = 0;	if (config->cfi->defaultIsSaved) {
2600	if (bootPtr) *bootPtr = NULL;	if (config->cfi->getEnv) {
2601		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2602	while (fgets(buf, sizeof(buf), in)) {
2603	start = buf;	if (defaultTitle) {
2604	while (isspace(*start)) start++;	if (isnumber(defaultTitle)) {
2605	if (*start == '#') continue;	currentLookupIndex = atoi(defaultTitle);
2606		} else {
2607	chptr = strchr(start, '=');	findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2608	if (!chptr) continue;	}
2609	chptr--;	/* set the default Image to an actual index */
2610	while (*chptr && isspace(*chptr)) chptr--;	config->defaultImage = currentLookupIndex;
2611	chptr++;	}
2612	*chptr = '\0';	}
2613		}
2614	param = chptr + 1;	}
2615	while (*param && isspace(*param)) param++;	} else {
2616	if (*param == '=') {	/* use pre-existing default entry from the file*/
2617	param++;	currentLookupIndex = config->defaultImage;
2618	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);
	}
2619
2620	fclose(in);	if (isAddingBootEntry
2621		&& (newBootEntryIndex <= config->defaultImage)) {
2622		config->defaultImage++;
2623
2624	return 0;	if (config->isModified) {
2625	}	currentLookupIndex++;
2626		}
2627		}
2628		}
2629
2630	void dumpSysconfigGrub(void) {	/* sanity check - is this entry index valid? */
2631	char * boot;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
	}
2632
2633	int displayInfo(struct grubConfig * config, char * kernel,	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2634	const char * prefix) {	/* entry is to be skipped or is invalid */
2635	int i = 0;	if (isAddingBootEntry) {
2636	struct singleEntry * entry;	config->defaultImage = newBootEntryIndex;
2637	struct singleLine * line;	return;
2638		}
2639	entry = findEntryByPath(config, kernel, prefix, &i);	newDefault =
2640	if (!entry) {	findTemplate(config, prefix, &config->defaultImage, 1,
2641	fprintf(stderr, _("grubby: kernel not found\n"));	flags);
2642	return 1;	if (!newDefault) {
2643	}	config->defaultImage = NO_DEFAULT_ENTRY;
2644		}
2645
2646	/* this is a horrible hack to support /etc/conf.d/grub; there must	return;
	be a better way */
	if (config->cfi == &grubConfigType) {
	dumpSysconfigGrub();
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
2647	}	}
2648
2649	line = getLineByType(LT_LBA, config->theLines);	currentLookupIndex--;
	if (line) printf("lba\n");
	}
2650
2651	displayEntry(entry, prefix, i);	/* decrement index by the total number of entries deleted */
2652
2653	i++;	for (indexToVerify = currentLookupIndex;
2654	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	displayEntry(entry, prefix, i);
	i++;
	}
2655
2656	return 0;	bootEntry = findEntryByIndex(config, indexToVerify);
	}
	struct singleLine * addLineTmpl(struct singleEntry * entry,
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi)
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[1]
	*/
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
	if (!entry->lines) {
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
	}
2657
2658	/* val may be NULL */	if (bootEntry && bootEntry->skip) {
2659	struct singleLine *  addLine(struct singleEntry * entry,	config->defaultImage--;
2660	struct configFileInfo * cfi,	}
	enum lineType_e type, char * defaultIndent,
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
2661	}	}
	}
	/* The last non-empty line gives us the indention to us and the line
	to insert after. Note that comments are considered empty lines, which
	may not be ideal? If there are no lines or we are looking at the
	first line, we use defaultIndent (the first line is normally indented
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
	struct singleLine *menuEntry;
	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
	return addLineTmpl(entry, &tmpl, prev, val, cfi);
2662	}	}
2663
2664	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2665	struct singleLine * prev;	{
2666	int i;	struct singleEntry *entry, *entry2;
2667		int j;
2668
2669	for (i = 0; i < line->numElements; i++) {	if (config->fallbackImage == -1)
2670	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2671
2672	if (line == entry->lines) {	entry = findEntryByIndex(config, config->fallbackImage);
2673	entry->lines = line->next;	if (!entry || entry->skip) {
2674	} else {	config->fallbackImage = -1;
2675	prev = entry->lines;	return;
2676	while (prev->next != line) prev = prev->next;	}
	prev->next = line->next;
	}
2677
2678	free(line);	if (hasNew)
2679	}	config->fallbackImage++;
2680
2681	static int isquote(char q)	/* count the number of entries erased before this one */
2682	{	for (j = 0; j < config->fallbackImage; j++) {
2683	if (q == '\'' || q == '\"')	entry2 = findEntryByIndex(config, j);
2684	return 1;	if (entry2->skip)
2685	return 0;	config->fallbackImage--;
2686		}
2687	}	}
2688
2689	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2690	{	{
2691	struct singleLine newLine = {	struct singleLine *line;
2692	.indent = tmplLine->indent,	char *root = NULL;
2693	.type = tmplLine->type,	int i;
2694	.next = tmplLine->next,	int j;
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {
	/* move the end-of-line forward */
	line->elements[insertHere].indent =
	line->elements[insertHere-1].indent;
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
2695
2696	line->numElements++;	printf("index=%d\n", index);
2697
2698	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	line =
2699	line->elements[0].item,	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2700	line->elements[insertHere].item,	entry->lines);
2701	line->elements[insertHere].indent,	if (!line) {
2702	insertHere);	printf("non linux entry\n");
2703	}	return;
2704		}
2705
2706	static void removeElement(struct singleLine * line, int removeHere) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2707	int i;	printf("kernel=%s\n", line->elements[1].item);
2708		else
2709		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2710
2711	/* sanity check */	if (line->numElements >= 3) {
2712	if (removeHere >= line->numElements) return;	printf("args=\"");
2713		i = 2;
2714		while (i < line->numElements) {
2715		if (!strncmp(line->elements[i].item, "root=", 5)) {
2716		root = line->elements[i].item + 5;
2717		} else {
2718		printf("%s%s", line->elements[i].item,
2719		line->elements[i].indent);
2720		}
2721
2722	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	i++;
2723	removeHere, line->elements[removeHere].item);	}
2724		printf("\"\n");
2725		} else {
2726		line = getLineByType(LT_KERNELARGS, entry->lines);
2727		if (line) {
2728		char *s;
2729
2730		printf("args=\"");
2731		i = 1;
2732		while (i < line->numElements) {
2733		if (!strncmp
2734		(line->elements[i].item, "root=", 5)) {
2735		root = line->elements[i].item + 5;
2736		} else {
2737		s = line->elements[i].item;
2738
2739	free(line->elements[removeHere].item);	printf("%s%s", s,
2740		line->elements[i].indent);
2741		}
2742
2743	if (removeHere > 1) {	i++;
2744	/* previous argument gets this argument's post-indentation */	}
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2745
2746	/* now collapse the array, but don't bother to realloc smaller */	s = line->elements[i - 1].indent;
2747	for (i = removeHere; i < line->numElements - 1; i++)	printf("\"\n");
2748	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;
2749	}	}
	}
2750
2751	if (!removeArgs) {	if (!root) {
2752	oldArgs = malloc(sizeof(*oldArgs));	line = getLineByType(LT_ROOT, entry->lines);
2753	*oldArgs = NULL;	if (line && line->numElements >= 2)
2754	} else {	root = line->elements[1].item;
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2755	}	}
	}
2756
2757		if (root) {
2758		char *s = alloca(strlen(root) + 1);
2759
2760	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	strcpy(s, root);
2761	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	if (s[strlen(s) - 1] == '"')
2762		s[strlen(s) - 1] = '\0';
2763	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	/* make sure the root doesn't have a trailing " */
2764	&& !multibootArgs);	printf("root=%s\n", s);
2765		}
2766
2767	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	line =
2768		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2769		entry->lines);
2770
2771	if (multibootArgs && !entry->multiboot)	if (line && line->numElements >= 2) {
2772	continue;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2773		printf("initrd=");
2774		else
2775		printf("initrd=%s", prefix);
2776
2777	/* Determine where to put the args.  If this config supports	for (i = 1; i < line->numElements; i++)
2778	* LT_KERNELARGS, use that.  Otherwise use	printf("%s%s", line->elements[i].item,
2779	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	line->elements[i].indent);
2780	*/	printf("\n");
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
2781	}	}
2782
2783	/* handle the elilo case which does:	line = getLineByType(LT_TITLE, entry->lines);
2784	*   append="hypervisor args -- kernel args"	if (line) {
2785	*/	char *entryTitle;
2786	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	/* if we can extractTitle, then it's a zipl config and
2787	/* this is a multiboot entry, make sure there's	* if not then we go ahead with what's existed prior */
2788	* -- on the args line	entryTitle = extractTitle(config, line);
2789	*/	if (!entryTitle) {
2790	for (i = firstElement; i < line->numElements; i++) {	entryTitle=line->elements[1].item;
	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;
2791	}	}
2792	}	printf("title=%s\n", entryTitle);
2793		} else {
2794	if (i < line->numElements && doreplace) {	char *title;
2795	/* direct replacement */	line = getLineByType(LT_MENUENTRY, entry->lines);
2796	free(line->elements[i].item);	if (line) {
2797	line->elements[i].item = strdup(*arg);	title = grub2ExtractTitle(line);
2798		if (title)
2799	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	printf("title=%s\n", title);
	/* root= replacement */
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
2800	}	}
2801	}	}
2802
2803	else {	for (j = 0, line = entry->lines; line; line = line->next) {
2804	/* insert/append */	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2805	insertElement(line, *arg, i, cfg->cfi);	if (!strncmp
2806	usedElements = realloc(usedElements, line->numElements *	(prefix, line->elements[1].item, strlen(prefix)))
2807	sizeof(*usedElements));	printf("mbmodule%d=", j);
2808	memmove(&usedElements[i + 1], &usedElements[i],	else
2809	line->numElements - i - 1);	printf("mbmodule%d=%s", j, prefix);
2810	usedElements[i] = 1;
2811		for (i = 1; i < line->numElements; i++)
2812	/* if we updated a root= here even though there is a	printf("%s%s", line->elements[i].item,
2813	LT_ROOT available we need to remove the LT_ROOT entry	line->elements[i].indent);
2814	(this will happen if we switch from a device to a label) */	printf("\n");
2815	if (useRoot && !strncmp(*arg, "root=", 5)) {	j++;
2816	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);
2817	}	}
2818	}	}
2819
2820	free(newArgs);	int isSuseSystem(void)
2821	free(oldArgs);	{
2822		const char *path;
2823		const static char default_path[] = "/etc/SuSE-release";
2824
2825	return 0;	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2826	}	path = default_path;
2827
2828	int updateImage(struct grubConfig * cfg, const char * image,	if (!access(path, R_OK))
	const char * prefix, const char * addArgs,
	const char * removeArgs,
	const char * addMBArgs, const char * removeMBArgs) {
	int rc = 0;
	if (!image) return rc;
	/* update the main args first... */
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
2829	return 1;	return 1;
2830		return 0;
2831		}
2832
2833		int isSuseGrubConf(const char *path)
2834		{
2835		FILE *grubConf;
2836		char *line = NULL;
2837		size_t len = 0, res = 0;
2838
2839		grubConf = fopen(path, "r");
2840		if (!grubConf) {
2841		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2842		path);
2843		return 0;
2844	}	}
2845
2846	break;	while ((res = getline(&line, &len, grubConf)) != -1) {
2847	}	if (!strncmp(line, "setup", 5)) {
2848		fclose(grubConf);
2849		free(line);
2850		return 1;
2851		}
2852		}
2853
2854	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2855		path);
2856
2857		fclose(grubConf);
2858		free(line);
2859		return 0;
2860	}	}
2861
2862	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2863	int fd;	{
2864	unsigned char bootSect[512];	FILE *grubConf;
2865	int offset;	char *line = NULL;
2866		size_t res = 0, len = 0;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2867
2868	if (read(fd, bootSect, 512) != 512) {	if (!path)
2869	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	return 1;
2870	device, strerror(errno));	if (!lbaPtr)
2871	return 1;	return 1;
	}
	close(fd);
2872
2873	/* first three bytes should match, a jmp short should be in there */	grubConf = fopen(path, "r");
2874	if (memcmp(boot, bootSect, 3))	if (!grubConf)
2875	return 0;	return 1;
2876
2877	if (boot[1] == JMP_SHORT_OPCODE) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2878	offset = boot[2] + 2;	if (line[res - 1] == '\n')
2879	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	line[res - 1] = '\0';
2880	offset = (boot[3] << 8) + boot[2] + 2;	else if (len > res)
2881	} else if (boot[0] == JMP_SHORT_OPCODE) {	line[res] = '\0';
2882	offset = boot[1] + 2;	else {
2883	/*	line = realloc(line, res + 1);
2884	* it looks like grub, when copying stage1 into the mbr, patches stage1	line[res] = '\0';
2885	* 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;
	}
2886
2887	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (!strncmp(line, "setup", 5)) {
2888	return 0;	if (strstr(line, "--force-lba")) {
2889		*lbaPtr = 1;
2890		} else {
2891		*lbaPtr = 0;
2892		}
2893		dbgPrintf("lba: %i\n", *lbaPtr);
2894		break;
2895		}
2896		}
2897
2898	return 2;	free(line);
2899		fclose(grubConf);
2900		return 0;
2901	}	}
2902
2903	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2904	int fd;	{
2905	char buf[65536];	FILE *grubConf;
2906	char * end;	char *line = NULL;
2907	char * chptr;	size_t res = 0, len = 0;
2908	char * chptr2;	char *lastParamPtr = NULL;
2909	int rc;	char *secLastParamPtr = NULL;
2910		char installDeviceNumber = '\0';
2911	/* it's on raid; we need to parse /proc/mdstat and check all of the	char *bounds = NULL;
	*raw* devices listed in there */
	if (!strncmp(mdDev, "/dev/", 5))
	mdDev += 5;
2912
2913	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!path)
2914	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	return 1;
2915	strerror(errno));	if (!devicePtr)
2916	return 2;	return 1;
	}
2917
2918	rc = read(fd, buf, sizeof(buf) - 1);	grubConf = fopen(path, "r");
2919	if (rc < 0 || rc == (sizeof(buf) - 1)) {	if (!grubConf)
2920	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	return 1;
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2921
2922	chptr = buf;	while ((res = getline(&line, &len, grubConf)) != -1) {
2923	while (*chptr) {	if (strncmp(line, "setup", 5))
2924	end = strchr(chptr, '\n');	continue;
2925	if (!end) break;
2926	*end = '\0';	if (line[res - 1] == '\n')
2927		line[res - 1] = '\0';
2928		else if (len > res)
2929		line[res] = '\0';
2930		else {
2931		line = realloc(line, res + 1);
2932		line[res] = '\0';
2933		}
2934
2935	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	lastParamPtr = bounds = line + res;
	chptr[strlen(mdDev)] == ' ') {
2936
2937	/* found the device */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2938	while (*chptr && *chptr != ':') chptr++;	while (!isspace(*lastParamPtr))
2939	chptr++;	lastParamPtr--;
2940	while (*chptr && isspace(*chptr)) chptr++;	lastParamPtr++;
2941
2942	/* skip the "active" bit */	secLastParamPtr = lastParamPtr - 2;
2943	while (*chptr && !isspace(*chptr)) chptr++;	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2944	while (*chptr && isspace(*chptr)) chptr++;
2945		if (lastParamPtr + 3 > bounds) {
2946	/* skip the raid level */	dbgPrintf("lastParamPtr going over boundary");
2947	while (*chptr && !isspace(*chptr)) chptr++;	fclose(grubConf);
2948	while (*chptr && isspace(*chptr)) chptr++;	free(line);
2949		return 1;
2950	/* everything else is partition stuff */	}
2951	while (*chptr) {	if (!strncmp(lastParamPtr, "(hd", 3))
2952	chptr2 = chptr;	lastParamPtr += 3;
2953	while (*chptr2 && *chptr2 != '[') chptr2++;	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2954	if (!*chptr2) break;
2955		/*
2956	/* yank off the numbers at the end */	* Second last parameter will decide wether last parameter is
2957	chptr2--;	* an IMAGE_DEVICE or INSTALL_DEVICE
2958	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	*/
2959	chptr2++;	while (!isspace(*secLastParamPtr))
2960	*chptr2 = '\0';	secLastParamPtr--;
2961		secLastParamPtr++;
2962	/* Better, now we need the /dev/ back. We're done with
2963	* everything before this point, so we can just put	if (secLastParamPtr + 3 > bounds) {
2964	* the /dev/ part there. There will always be room. */	dbgPrintf("secLastParamPtr going over boundary");
2965	memcpy(chptr - 5, "/dev/", 5);	fclose(grubConf);
2966	rc = checkDeviceBootloader(chptr - 5, boot);	free(line);
2967	if (rc != 2) {	return 1;
2968	return rc;	}
2969	}	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2970		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2971	chptr = chptr2 + 1;	secLastParamPtr += 3;
2972	/* skip the [11] bit */	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2973	while (*chptr && !isspace(*chptr)) chptr++;	installDeviceNumber = *secLastParamPtr;
2974	/* and move to the next one */	} else {
2975	while (*chptr && isspace(*chptr)) chptr++;	installDeviceNumber = *lastParamPtr;
2976	}	}
2977
2978	/*  we're good to go */	*devicePtr = malloc(6);
2979	return 2;	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2980		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2981		fclose(grubConf);
2982		free(line);
2983		return 0;
2984	}	}
2985
2986	chptr = end + 1;	free(line);
2987	}	fclose(grubConf);
2988		return 1;
	fprintf(stderr,
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
2989	}	}
2990
2991	int checkForLilo(struct grubConfig * config) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2992	int fd;	{
2993	unsigned char boot[512];	FILE *deviceMap;
2994	struct singleLine * line;	char *line = NULL;
2995		size_t res = 0, len = 0;
2996	for (line = config->theLines; line; line = line->next)	char *devicePtr;
2997	if (line->type == LT_BOOT) break;	char *bounds = NULL;
2998		const char *path;
2999	if (!line) {	const static char default_path[] = "/boot/grub/device.map";
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3000
3001	if (line->numElements != 2) return 1;	if (!device)
3002		return 1;
3003		if (!bootPtr)
3004		return 1;
3005
3006	fd = open("/boot/boot.b", O_RDONLY);	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3007	if (fd < 0) {	path = default_path;
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3008
3009	if (read(fd, boot, 512) != 512) {	dbgPrintf("opening grub device.map file from: %s\n", path);
3010	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	deviceMap = fopen(path, "r");
3011	"/boot/boot.b", strerror(errno));	if (!deviceMap)
3012	return 1;	return 1;
	}
	close(fd);
3013
3014	if (!strncmp("/dev/md", line->elements[1].item, 7))	while ((res = getline(&line, &len, deviceMap)) != -1) {
3015	return checkLiloOnRaid(line->elements[1].item, boot);	if (!strncmp(line, "#", 1))
3016		continue;
3017
3018		if (line[res - 1] == '\n')
3019		line[res - 1] = '\0';
3020		else if (len > res)
3021		line[res] = '\0';
3022		else {
3023		line = realloc(line, res + 1);
3024		line[res] = '\0';
3025		}
3026
3027	return checkDeviceBootloader(line->elements[1].item, boot);	devicePtr = line;
3028	}	bounds = line + res;
3029
3030	int checkForGrub2(struct grubConfig * config) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3031	if (!access("/etc/grub.d/", R_OK))	devicePtr++;
3032	return 2;	dbgPrintf("device: %s\n", devicePtr);
3033
3034		if (!strncmp(devicePtr, device, strlen(device))) {
3035		devicePtr += strlen(device);
3036		while (isspace(*devicePtr)
3037		&& ((devicePtr + 1) <= bounds))
3038		devicePtr++;
3039
3040		*bootPtr = strdup(devicePtr);
3041		break;
3042		}
3043		}
3044
3045	return 1;	free(line);
3046		fclose(deviceMap);
3047		return 0;
3048	}	}
3049
3050	int checkForGrub(struct grubConfig * config) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3051	int fd;	{
3052	unsigned char bootSect[512];	char *grubDevice;
	char * boot;
3053
3054	if (parseSysconfigGrub(NULL, &boot))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3055	return 0;	dbgPrintf("error looking for grub installation device\n");
3056		else
3057		dbgPrintf("grubby installation device: %s\n", grubDevice);
3058
3059	/* assume grub is not installed -- not an error condition */	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3060	if (!boot)	dbgPrintf("error looking for grub boot device\n");
3061	return 0;	else
3062		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3063
3064	fd = open("/boot/grub/stage1", O_RDONLY);	free(grubDevice);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3065	return 0;	return 0;
3066		}
3067
3068	if (read(fd, bootSect, 512) != 512) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3069	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3070	"/boot/grub/stage1", strerror(errno));	/*
3071	close(fd);	* This SuSE grub configuration file at this location is not your
3072	return 1;	* average grub configuration file, but instead the grub commands
3073	}	* used to setup grub on that system.
3074	close(fd);	*/
3075		const char *path;
3076		const static char default_path[] = "/etc/grub.conf";
3077
3078	return checkDeviceBootloader(boot, bootSect);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3079	}	path = default_path;
3080
3081	int checkForExtLinux(struct grubConfig * config) {	if (!isSuseGrubConf(path))
3082	int fd;	return 1;
	unsigned char bootSect[512];
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
3083
3084	printf("entered: checkForExtLinux()\n");	if (lbaPtr) {
3085		*lbaPtr = 0;
3086		if (suseGrubConfGetLba(path, lbaPtr))
3087		return 1;
3088		}
3089
3090	if (parseSysconfigGrub(NULL, &boot))	if (bootPtr) {
3091	return 0;	*bootPtr = NULL;
3092		suseGrubConfGetBoot(path, bootPtr);
3093		}
3094
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3095	return 0;	return 0;
3096		}
3097
3098	fd = open(executable, O_RDONLY);	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3099	if (fd < 0)	{
3100	/* this doesn't exist if grub hasn't been installed */	FILE *in;
3101	return 0;	char buf[1024];
3102		char *chptr;
3103		char *start;
3104		char *param;
3105
3106	if (read(fd, bootSect, 512) != 512) {	in = fopen("/etc/sysconfig/grub", "r");
3107	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (!in)
3108	executable, strerror(errno));	return 1;
	return 1;
	}
	close(fd);
3109
3110	return checkDeviceBootloader(boot, bootSect);	if (lbaPtr)
3111	}	*lbaPtr = 0;
3112		if (bootPtr)
3113		*bootPtr = NULL;
3114
3115		while (fgets(buf, sizeof(buf), in)) {
3116		start = buf;
3117		while (isspace(*start))
3118		start++;
3119		if (*start == '#')
3120		continue;
3121
3122		chptr = strchr(start, '=');
3123		if (!chptr)
3124		continue;
3125		chptr--;
3126		while (*chptr && isspace(*chptr))
3127		chptr--;
3128		chptr++;
3129		*chptr = '\0';
3130
3131		param = chptr + 1;
3132		while (*param && isspace(*param))
3133		param++;
3134		if (*param == '=') {
3135		param++;
3136		while (*param && isspace(*param))
3137		param++;
3138		}
3139
3140		chptr = param;
3141		while (*chptr && !isspace(*chptr))
3142		chptr++;
3143		*chptr = '\0';
3144
3145		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3146		*lbaPtr = 1;
3147		else if (!strcmp(start, "boot") && bootPtr)
3148		*bootPtr = strdup(param);
3149		}
3150
3151	static char * getRootSpecifier(char * str) {	fclose(in);
	char * idx, * rootspec = NULL;
3152
3153	if (*str == '(') {	return 0;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
3154	}	}
3155
3156	static char * getInitrdVal(struct grubConfig * config,	void dumpSysconfigGrub(void)
3157	const char * prefix, struct singleLine *tmplLine,	{
3158	const char * newKernelInitrd,	char *boot = NULL;
3159	char ** extraInitrds, int extraInitrdCount)	int lba;
	{
	char *initrdVal, *end;
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3160
3161	initrdVal = end = malloc(totalSize);	if (isSuseSystem()) {
3162		if (parseSuseGrubConf(&lba, &boot)) {
3163		free(boot);
3164		return;
3165		}
3166		} else {
3167		if (parseSysconfigGrub(&lba, &boot)) {
3168		free(boot);
3169		return;
3170		}
3171		}
3172
3173	end = stpcpy (end, newKernelInitrd + prefixLen);	if (lba)
3174		printf("lba\n");
3175		if (boot) {
3176		printf("boot=%s\n", boot);
3177		free(boot);
3178		}
3179		}
3180
3181	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3182	for (i = 0; i < extraInitrdCount; i++) {	{
3183	const char *extraInitrd;	int i = 0;
3184	int j;	struct singleEntry *entry;
3185		struct singleLine *line;
3186
3187		entry = findEntryByPath(config, kernel, prefix, &i);
3188		if (!entry) {
3189		fprintf(stderr, _("grubby: kernel not found\n"));
3190		return 1;
3191		}
3192
3193	extraInitrd = extraInitrds[i] + prefixLen;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3194	/* Don't add entries that are already there */	be a better way */
3195	if (tmplLine != NULL) {	if (config->cfi == &grubConfigType) {
3196	for (j = 2; j < tmplLine->numElements; j++)	dumpSysconfigGrub();
3197	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	} else {
3198	break;	line = getLineByType(LT_BOOT, config->theLines);
3199		if (line && line->numElements >= 1) {
3200		printf("boot=%s\n", line->elements[1].item);
3201		}
3202
3203	if (j != tmplLine->numElements)	line = getLineByType(LT_LBA, config->theLines);
3204	continue;	if (line)
3205		printf("lba\n");
3206	}	}
3207
3208	*end++ = separatorChar;	displayEntry(config, entry, prefix, i);
	end = stpcpy(end, extraInitrd);
	}
3209
3210	return initrdVal;	i++;
3211		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3212		displayEntry(config, entry, prefix, i);
3213		i++;
3214		}
3215
3216		return 0;
3217	}	}
3218
3219	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3220	const char * prefix,	struct singleLine *tmplLine,
3221	char * newKernelPath, char * newKernelTitle,	struct singleLine *prevLine,
3222	char * newKernelArgs, char * newKernelInitrd,	const char *val, struct configFileInfo *cfi)
3223	char ** extraInitrds, int extraInitrdCount,	{
3224	char * newMBKernel, char * newMBKernelArgs) {	struct singleLine *newLine = lineDup(tmplLine);
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3225
3226	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (isEfi && cfi == &grub2ConfigType) {
3227	while (findEntryByPath(config, buf, NULL, NULL)) {	enum lineType_e old = newLine->type;
3228	sprintf(numBuf, "%d", i++);	newLine->type = preferredLineType(newLine->type, cfi);
3229	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	if (old != newLine->type)
3230		newLine->elements[0].item =
3231		getKeyByType(newLine->type, cfi);
3232	}	}
3233
3234	newKernelTitle = buf + 6;	if (val) {
3235	}	/* override the inherited value with our own.
3236		* This is a little weak because it only applies to elements[1]
3237		*/
3238		if (newLine->numElements > 1)
3239		removeElement(newLine, 1);
3240		insertElement(newLine, val, 1, cfi);
3241
3242		/* but try to keep the rootspec from the template... sigh */
3243		if (tmplLine->
3244		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3245		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3246		LT_INITRD_16)) {
3247		char *rootspec =
3248		getRootSpecifier(tmplLine->elements[1].item);
3249		if (rootspec != NULL) {
3250		free(newLine->elements[1].item);
3251		newLine->elements[1].item =
3252		sdupprintf("%s%s", rootspec, val);
3253		}
3254		}
3255		}
3256
3257	new = malloc(sizeof(*new));	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3258	new->skip = 0;	newLine->elements[0].item : "");
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3259
3260	if (template) {	if (!entry->lines) {
3261	for (masterLine = template->lines;	/* first one on the list */
3262	masterLine && (tmplLine = lineDup(masterLine));	entry->lines = newLine;
3263	lineFree(tmplLine), masterLine = masterLine->next)	} else if (prevLine) {
3264	{	/* add after prevLine */
3265	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	newLine->next = prevLine->next;
3266		prevLine->next = newLine;
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next && masterLine->next->type == LT_KERNEL) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
3267	}	}
3268
3269	} else {	return newLine;
3270	/* don't have a template, so start the entry with the	}
	* appropriate starting line
	*/
	switch (config->cfi->entryStart) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3271
3272	case LT_HYPER:	/* val may be NULL */
3273	newLine = addLine(new, config->cfi, LT_HYPER,	struct singleLine *addLine(struct singleEntry *entry,
3274	config->primaryIndent,	struct configFileInfo *cfi,
3275	newMBKernel + strlen(prefix));	enum lineType_e type, char *defaultIndent,
3276	needs &= ~NEED_MB;	const char *val)
3277	break;	{
3278		struct singleLine *line, *prev;
3279		struct keywordTypes *kw;
3280		struct singleLine tmpl;
3281
3282	case LT_MENUENTRY: {	/* NB: This function shouldn't allocate items on the heap, rather on
3283	char *nkt = malloc(strlen(newKernelTitle)+3);	* the stack since it calls addLineTmpl which will make copies.
3284	strcpy(nkt, "'");	*/
3285	strcat(nkt, newKernelTitle);	if (type == LT_TITLE && cfi->titleBracketed) {
3286	strcat(nkt, "'");	/* we're doing a bracketed title (zipl) */
3287	newLine = addLine(new, config->cfi, LT_MENUENTRY,	tmpl.type = type;
3288	config->primaryIndent, nkt);	tmpl.numElements = 1;
3289	free(nkt);	tmpl.elements = alloca(sizeof(*tmpl.elements));
3290	needs &= ~NEED_TITLE;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3291	needs |= NEED_END;	sprintf(tmpl.elements[0].item, "[%s]", val);
3292	break;	tmpl.elements[0].indent = "";
3293	}	val = NULL;
3294	case LT_TITLE:	} else if (type == LT_MENUENTRY) {
3295	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	char *lineend = "--class gnu-linux --class gnu --class os {";
3296	char * templabel;	if (!val) {
3297	int x = 0, y = 0;	fprintf(stderr,
3298		"Line type LT_MENUENTRY requires a value\n");
3299	templabel = strdup(newKernelTitle);	abort();
	while( templabel[x]){
	if( templabel[x] == ' ' ){
	y = x;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
	}
	}
	x++;
	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
3300	}	}
3301	needs &= ~NEED_TITLE;	kw = getKeywordByType(type, cfi);
3302	break;	if (!kw) {
3303		fprintf(stderr,
3304		"Looking up keyword for unknown type %d\n",
3305		type);
3306		abort();
3307		}
3308		tmpl.indent = "";
3309		tmpl.type = type;
3310		tmpl.numElements = 3;
3311		tmpl.elements =
3312		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3313		tmpl.elements[0].item = kw->key;
3314		tmpl.elements[0].indent = alloca(2);
3315		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3316		tmpl.elements[1].item = (char *)val;
3317		tmpl.elements[1].indent = alloca(2);
3318		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3319		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3320		strcpy(tmpl.elements[2].item, lineend);
3321		tmpl.elements[2].indent = "";
3322		} else {
3323		kw = getKeywordByType(type, cfi);
3324		if (!kw) {
3325		fprintf(stderr,
3326		"Looking up keyword for unknown type %d\n",
3327		type);
3328		abort();
3329		}
3330		tmpl.type = type;
3331		tmpl.numElements = val ? 2 : 1;
3332		tmpl.elements =
3333		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3334		tmpl.elements[0].item = kw->key;
3335		tmpl.elements[0].indent = alloca(2);
3336		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3337		if (val) {
3338		tmpl.elements[1].item = (char *)val;
3339		tmpl.elements[1].indent = "";
3340		}
3341		}
3342
3343	default:	/* The last non-empty line gives us the indention to us and the line
3344	abort();	* to insert after. Note that comments are considered empty lines,
3345		* which may not be ideal? If there are no lines or we are looking at
3346		* the first line, we use defaultIndent (the first line is normally
3347		* indented differently from the rest) */
3348		for (line = entry->lines, prev = NULL; line; line = line->next) {
3349		if (line->numElements)
3350		prev = line;
3351		/* fall back on the last line if prev isn't otherwise set */
3352		if (!line->next && !prev)
3353		prev = line;
3354		}
3355
3356		struct singleLine *menuEntry;
3357		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3358		if (tmpl.type == LT_ENTRY_END) {
3359		if (menuEntry)
3360		tmpl.indent = menuEntry->indent;
3361		else
3362		tmpl.indent = defaultIndent ? : "";
3363		} else if (tmpl.type != LT_MENUENTRY) {
3364		if (menuEntry)
3365		tmpl.indent = "\t";
3366		else if (prev == entry->lines)
3367		tmpl.indent = defaultIndent ? : "";
3368		else
3369		tmpl.indent = prev->indent;
3370	}	}
	}
3371
3372	/* add the remainder of the lines, i.e. those that either	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3373	* weren't present in the template, or in the case of no template,	}
	* all the lines following the entryStart.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
3374
3375	if (needs) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3376	printf(_("grubby: needs=%d, aborting\n"), needs);	{
3377	abort();	struct singleLine *prev;
3378	}	int i;
3379
3380		for (i = 0; i < line->numElements; i++) {
3381		free(line->elements[i].item);
3382		free(line->elements[i].indent);
3383		}
3384		free(line->elements);
3385		free(line->indent);
3386
3387	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (line == entry->lines) {
3388	newMBKernelArgs, NULL)) return 1;	entry->lines = line->next;
3389		} else {
3390		prev = entry->lines;
3391		while (prev->next != line)
3392		prev = prev->next;
3393		prev->next = line->next;
3394		}
3395
3396	return 0;	free(line);
3397	}	}
3398
3399	static void traceback(int signum)	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3400	{	{
3401	void *array[40];	struct singleLine newLine = {
3402	size_t size;	.indent = tmplLine->indent,
3403		.type = tmplLine->type,
3404		.next = tmplLine->next,
3405		};
3406		int firstQuotedItem = -1;
3407		int quoteLen = 0;
3408		int j;
3409		int element = 0;
3410		char *c;
3411
3412	signal(SIGSEGV, SIG_DFL);	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3413	memset(array, '\0', sizeof (array));	strcpy(c, tmplLine->elements[0].item);
3414	size = backtrace(array, 40);	insertElement(&newLine, c, element++, cfi);
3415		free(c);
3416	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	c = NULL;
3417	(unsigned long)size);
3418	backtrace_symbols_fd(array, size, STDERR_FILENO);	for (j = 1; j < tmplLine->numElements; j++) {
3419	exit(1);	if (firstQuotedItem == -1) {
3420	}	quoteLen += strlen(tmplLine->elements[j].item);
3421
3422	int main(int argc, const char ** argv) {	if (isquote(tmplLine->elements[j].item[0])) {
3423	poptContext optCon;	firstQuotedItem = j;
3424	const char * grubConfig = NULL;	quoteLen +=
3425	char * outputFile = NULL;	strlen(tmplLine->elements[j].indent);
3426	int arg = 0;	} else {
3427	int flags = 0;	c = malloc(quoteLen + 1);
3428	int badImageOkay = 0;	strcpy(c, tmplLine->elements[j].item);
3429	int configureGrub2 = 0;	insertElement(&newLine, c, element++, cfi);
3430	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	free(c);
3431	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	quoteLen = 0;
3432	int configureExtLinux = 0;	}
3433	int bootloaderProbe = 0;	} else {
3434	int extraInitrdCount = 0;	int itemlen = strlen(tmplLine->elements[j].item);
3435	char * updateKernelPath = NULL;	quoteLen += itemlen;
3436	char * newKernelPath = NULL;	quoteLen += strlen(tmplLine->elements[j].indent);
3437	char * removeKernelPath = NULL;
3438	char * newKernelArgs = NULL;	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3439	char * newKernelInitrd = NULL;	c = malloc(quoteLen + 1);
3440	char * newKernelTitle = NULL;	c[0] = '\0';
3441	char * newKernelVersion = NULL;	for (int i = firstQuotedItem; i < j + 1; i++) {
3442	char * newMBKernel = NULL;	strcat(c, tmplLine->elements[i].item);
3443	char * newMBKernelArgs = NULL;	strcat(c, tmplLine->elements[i].indent);
3444	char * removeMBKernelArgs = NULL;	}
3445	char * removeMBKernel = NULL;	insertElement(&newLine, c, element++, cfi);
3446	char * bootPrefix = NULL;	free(c);
3447	char * defaultKernel = NULL;
3448	char * removeArgs = NULL;	firstQuotedItem = -1;
3449	char * kernelInfo = NULL;	quoteLen = 0;
3450	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	}
3451	const char * chptr = NULL;	}
3452	struct configFileInfo * cfi = NULL;	}
3453	struct grubConfig * config;	while (tmplLine->numElements)
3454	struct singleEntry * template = NULL;	removeElement(tmplLine, 0);
3455	int copyDefault = 0, makeDefault = 0;	if (tmplLine->elements)
3456	int displayDefault = 0;	free(tmplLine->elements);
3457	int displayDefaultIndex = 0;
3458	int displayDefaultTitle = 0;	tmplLine->numElements = newLine.numElements;
3459	struct poptOption options[] = {	tmplLine->elements = newLine.elements;
3460	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	}
3461	_("add an entry for the specified kernel"), _("kernel-path") },
3462	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	static void insertElement(struct singleLine *line,
3463	_("add an entry for the specified multiboot kernel"), NULL },	const char *item, int insertHere,
3464	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	struct configFileInfo *cfi)
3465	_("default arguments for the new kernel or new arguments for "	{
3466	"kernel being updated"), _("args") },	struct keywordTypes *kw;
3467	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	char indent[2] = "";
3468	_("default arguments for the new multiboot kernel or "
3469	"new arguments for multiboot kernel being updated"), NULL },	/* sanity check */
3470	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	if (insertHere > line->numElements) {
3471	_("don't sanity check images in boot entries (for testing only)"),	dbgPrintf
3472	NULL },	("insertElement() adjusting insertHere from %d to %d\n",
3473	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	insertHere, line->numElements);
3474	_("filestystem which contains /boot directory (for testing only)"),	insertHere = line->numElements;
3475	_("bootfs") },	}
3476	#if defined(__i386__) || defined(__x86_64__)
3477	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	line->elements = realloc(line->elements, (line->numElements + 1) *
3478	_("check if lilo is installed on lilo.conf boot sector") },	sizeof(*line->elements));
3479	#endif	memmove(&line->elements[insertHere + 1],
3480	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	&line->elements[insertHere],
3481	_("path to grub config file to update (\"-\" for stdin)"),	(line->numElements - insertHere) * sizeof(*line->elements));
3482	_("path") },	line->elements[insertHere].item = strdup(item);
3483	{ "copy-default", 0, 0, &copyDefault, 0,
3484	_("use the default boot entry as a template for the new entry "	kw = getKeywordByType(line->type, cfi);
3485	"being added; if the default is not a linux image, or if "
3486	"the kernel referenced by the default image does not exist, "	if (line->numElements == 0) {
3487	"the first linux entry whose kernel does exist is used as the "	indent[0] = '\0';
3488	"template"), NULL },	} else if (insertHere == 0) {
3489	{ "debug", 0, 0, &debug, 0,	indent[0] = kw->nextChar;
3490	_("print debugging information for failures") },	} else if (kw->separatorChar != '\0') {
3491	{ "default-kernel", 0, 0, &displayDefault, 0,	indent[0] = kw->separatorChar;
3492	_("display the path of the default kernel") },	} else {
3493	{ "default-index", 0, 0, &displayDefaultIndex, 0,	indent[0] = ' ';
3494	_("display the index of the default kernel") },	}
3495	{ "default-title", 0, 0, &displayDefaultTitle, 0,
3496	_("display the title of the default kernel") },	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3497	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	/* move the end-of-line forward */
3498	_("configure elilo bootloader") },	line->elements[insertHere].indent =
3499	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	line->elements[insertHere - 1].indent;
3500	_("configure extlinux bootloader (from syslinux)") },	line->elements[insertHere - 1].indent = strdup(indent);
3501	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	} else {
3502	_("configure grub bootloader") },	line->elements[insertHere].indent = strdup(indent);
3503	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	}
3504	_("configure grub2 bootloader") },
3505	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	line->numElements++;
3506	_("display boot information for specified kernel"),
3507	_("kernel-path") },	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3508	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	line->elements[0].item,
3509	_("initrd image for the new kernel"), _("initrd-path") },	line->elements[insertHere].item,
3510	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	line->elements[insertHere].indent, insertHere);
3511	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	}
3512	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
3513	_("configure lilo bootloader") },	static void removeElement(struct singleLine *line, int removeHere)
3514	{ "make-default", 0, 0, &makeDefault, 0,	{
3515	_("make the newly added entry the default boot entry"), NULL },	int i;
3516	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
3517	_("path to output updated config file (\"-\" for stdout)"),	/* sanity check */
3518	_("path") },	if (removeHere >= line->numElements)
3519	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	return;
3520	_("remove kernel arguments"), NULL },
3521	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3522	_("remove multiboot kernel arguments"), NULL },	removeHere, line->elements[removeHere].item);
3523	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
3524	_("remove all entries for the specified kernel"),	free(line->elements[removeHere].item);
3525	_("kernel-path") },
3526	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	if (removeHere > 1) {
3527	_("remove all entries for the specified multiboot kernel"), NULL },	/* previous argument gets this argument's post-indentation */
3528	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	free(line->elements[removeHere - 1].indent);
3529	_("make the first entry referencing the specified kernel "	line->elements[removeHere - 1].indent =
3530	"the default"), _("kernel-path") },	line->elements[removeHere].indent;
3531	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	} else {
3532	_("configure silo bootloader") },	free(line->elements[removeHere].indent);
3533	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	}
3534	_("title to use for the new kernel entry"), _("entry-title") },
3535	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	/* now collapse the array, but don't bother to realloc smaller */
3536	_("updated information for the specified kernel"),	for (i = removeHere; i < line->numElements - 1; i++)
3537	_("kernel-path") },	line->elements[i] = line->elements[i + 1];
3538	{ "version", 'v', 0, NULL, 'v',
3539	_("print the version of this program and exit"), NULL },	line->numElements--;
3540	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	}
3541	_("configure yaboot bootloader") },
3542	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	int argMatch(const char *one, const char *two)
3543	_("configure zipl bootloader") },	{
3544	POPT_AUTOHELP	char *first, *second;
3545	{ 0, 0, 0, 0, 0 }	char *chptr;
3546	};
3547		first = strcpy(alloca(strlen(one) + 1), one);
3548	useextlinuxmenu=0;	second = strcpy(alloca(strlen(two) + 1), two);
3549
3550	signal(SIGSEGV, traceback);	chptr = strchr(first, '=');
3551		if (chptr)
3552	optCon = poptGetContext("grubby", argc, argv, options, 0);	*chptr = '\0';
3553	poptReadDefaultConfig(optCon, 1);
3554		chptr = strchr(second, '=');
3555	while ((arg = poptGetNextOpt(optCon)) >= 0) {	if (chptr)
3556	switch (arg) {	*chptr = '\0';
3557	case 'v':
3558	printf("grubby version %s\n", VERSION);	return strcmp(first, second);
3559	exit(0);	}
3560	break;
3561	case 'i':	int updateActualImage(struct grubConfig *cfg, const char *image,
3562	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	const char *prefix, const char *addArgs,
3563	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	const char *removeArgs, int multibootArgs)
3564	} else {	{
3565	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	struct singleEntry *entry;
3566		struct singleLine *line, *rootLine;
3567		int index = 0;
3568		int i, k;
3569		const char **newArgs, **oldArgs;
3570		const char **arg;
3571		int useKernelArgs, useRoot;
3572		int firstElement;
3573		int *usedElements;
3574		int doreplace;
3575
3576		if (!image)
3577		return 0;
3578
3579		if (!addArgs) {
3580		newArgs = malloc(sizeof(*newArgs));
3581		*newArgs = NULL;
3582		} else {
3583		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3584		fprintf(stderr,
3585		_("grubby: error separating arguments '%s'\n"),
3586		addArgs);
3587		return 1;
3588		}
3589		}
3590
3591		if (!removeArgs) {
3592		oldArgs = malloc(sizeof(*oldArgs));
3593		*oldArgs = NULL;
3594		} else {
3595		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3596		fprintf(stderr,
3597		_("grubby: error separating arguments '%s'\n"),
3598		removeArgs);
3599		free(newArgs);
3600		return 1;
3601		}
3602		}
3603
3604		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3605		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3606
3607		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3608		&& !multibootArgs);
3609
3610		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3611
3612		if (multibootArgs && !entry->multiboot)
3613		continue;
3614
3615		/* Determine where to put the args.  If this config supports
3616		* LT_KERNELARGS, use that.  Otherwise use
3617		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3618		*/
3619		if (useKernelArgs) {
3620		line = getLineByType(LT_KERNELARGS, entry->lines);
3621		if (!line) {
3622		/* no LT_KERNELARGS, need to add it */
3623		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3624		cfg->secondaryIndent, NULL);
3625		}
3626		firstElement = 1;
3627
3628		} else if (multibootArgs) {
3629		line = getLineByType(LT_HYPER, entry->lines);
3630		if (!line) {
3631		/* a multiboot entry without LT_HYPER? */
3632		continue;
3633		}
3634		firstElement = 2;
3635
3636		} else {
3637		line =
3638		getLineByType(LT_KERNEL | LT_MBMODULE |
3639		LT_KERNEL_EFI | LT_KERNEL_16,
3640		entry->lines);
3641		if (!line) {
3642		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3643		continue;
3644		}
3645		firstElement = 2;
3646		}
3647
3648		/* handle the elilo case which does:
3649		*   append="hypervisor args -- kernel args"
3650		*/
3651		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3652		/* this is a multiboot entry, make sure there's
3653		* -- on the args line
3654		*/
3655		for (i = firstElement; i < line->numElements; i++) {
3656		if (!strcmp(line->elements[i].item, "--"))
3657		break;
3658		}
3659		if (i == line->numElements) {
3660		/* assume all existing args are kernel args,
3661		* prepend -- to make it official
3662		*/
3663		insertElement(line, "--", firstElement,
3664		cfg->cfi);
3665		i = firstElement;
3666		}
3667		if (!multibootArgs) {
3668		/* kernel args start after the -- */
3669		firstElement = i + 1;
3670		}
3671		} else if (cfg->cfi->mbConcatArgs) {
3672		/* this is a non-multiboot entry, remove hyper args */
3673		for (i = firstElement; i < line->numElements; i++) {
3674		if (!strcmp(line->elements[i].item, "--"))
3675		break;
3676		}
3677		if (i < line->numElements) {
3678		/* remove args up to -- */
3679		while (strcmp
3680		(line->elements[firstElement].item,
3681		"--"))
3682		removeElement(line, firstElement);
3683		/* remove -- */
3684		removeElement(line, firstElement);
3685		}
3686		}
3687
3688		usedElements = calloc(line->numElements, sizeof(*usedElements));
3689
3690		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3691
3692		doreplace = 1;
3693		for (i = firstElement; i < line->numElements; i++) {
3694		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3695		!strcmp(line->elements[i].item, "--")) {
3696		/* reached the end of hyper args, insert here */
3697		doreplace = 0;
3698		break;
3699		}
3700		if (usedElements[i])
3701		continue;
3702		if (!argMatch(line->elements[i].item, *arg)) {
3703		usedElements[i] = 1;
3704		break;
3705		}
3706		}
3707
3708		if (i < line->numElements && doreplace) {
3709		/* direct replacement */
3710		free(line->elements[i].item);
3711		line->elements[i].item = strdup(*arg);
3712
3713		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3714		/* root= replacement */
3715		rootLine = getLineByType(LT_ROOT, entry->lines);
3716		if (rootLine) {
3717		free(rootLine->elements[1].item);
3718		rootLine->elements[1].item =
3719		strdup(*arg + 5);
3720		} else {
3721		rootLine =
3722		addLine(entry, cfg->cfi, LT_ROOT,
3723		cfg->secondaryIndent,
3724		*arg + 5);
3725		}
3726		}
3727
3728		else {
3729		/* insert/append */
3730		insertElement(line, *arg, i, cfg->cfi);
3731		usedElements =
3732		realloc(usedElements,
3733		line->numElements *
3734		sizeof(*usedElements));
3735		memmove(&usedElements[i + 1], &usedElements[i],
3736		line->numElements - i - 1);
3737		usedElements[i] = 1;
3738
3739		/* if we updated a root= here even though
3740		* there is a LT_ROOT available we need to
3741		* remove the LT_ROOT entry (this will happen
3742		* if we switch from a device to a label) */
3743		if (useRoot && !strncmp(*arg, "root=", 5)) {
3744		rootLine =
3745		getLineByType(LT_ROOT,
3746		entry->lines);
3747		if (rootLine)
3748		removeLine(entry, rootLine);
3749		}
3750		}
3751		}
3752
3753		free(usedElements);
3754
3755		for (arg = oldArgs; *arg; arg++) {
3756		for (i = firstElement; i < line->numElements; i++) {
3757		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3758		!strcmp(line->elements[i].item, "--"))
3759		/* reached the end of hyper args, stop here */
3760		break;
3761		if (!argMatch(line->elements[i].item, *arg)) {
3762		removeElement(line, i);
3763		break;
3764		}
3765		}
3766		/* handle removing LT_ROOT line too */
3767		if (useRoot && !strncmp(*arg, "root=", 5)) {
3768		rootLine = getLineByType(LT_ROOT, entry->lines);
3769		if (rootLine)
3770		removeLine(entry, rootLine);
3771		}
3772		}
3773
3774		if (line->numElements == 1) {
3775		/* don't need the line at all (note it has to be a
3776		LT_KERNELARGS for this to happen */
3777		removeLine(entry, line);
3778		}
3779		}
3780
3781		free(newArgs);
3782		free(oldArgs);
3783
3784		return 0;
3785		}
3786
3787		int updateImage(struct grubConfig *cfg, const char *image,
3788		const char *prefix, const char *addArgs,
3789		const char *removeArgs,
3790		const char *addMBArgs, const char *removeMBArgs)
3791		{
3792		int rc = 0;
3793
3794		if (!image)
3795		return rc;
3796
3797		/* update the main args first... */
3798		if (addArgs || removeArgs)
3799		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3800		0);
3801		if (rc)
3802		return rc;
3803
3804		/* and now any multiboot args */
3805		if (addMBArgs || removeMBArgs)
3806		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3807		removeMBArgs, 1);
3808		return rc;
3809		}
3810
3811		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3812		const char *image, const char *prefix, const char *initrd,
3813		const char *title)
3814		{
3815		struct singleEntry *entry;
3816		struct singleLine *line, *kernelLine, *endLine = NULL;
3817		int index = 0;
3818
3819		if (!image)
3820		return 0;
3821
3822		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3823		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3824		if (!kernelLine)
3825		continue;
3826
3827		/* if title is supplied, the entry's title must match it. */
3828		if (title) {
3829		char *linetitle;
3830
3831		line =
3832		getLineByType(LT_TITLE | LT_MENUENTRY,
3833		entry->lines);
3834		if (!line)
3835		continue;
3836
3837		linetitle = extractTitle(cfg, line);
3838		if (!linetitle)
3839		continue;
3840		if (strcmp(title, linetitle)) {
3841		free(linetitle);
3842		continue;
3843		}
3844		free(linetitle);
3845		}
3846
3847		if (prefix) {
3848		int prefixLen = strlen(prefix);
3849		if (!strncmp(initrd, prefix, prefixLen))
3850		initrd += prefixLen;
3851		}
3852		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3853		if (endLine)
3854		removeLine(entry, endLine);
3855		line =
3856		addLine(entry, cfg->cfi,
3857		preferredLineType(LT_MBMODULE, cfg->cfi),
3858		kernelLine->indent, initrd);
3859		if (!line)
3860		return 1;
3861		if (endLine) {
3862		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3863		if (!line)
3864		return 1;
3865		}
3866
3867		break;
3868		}
3869
3870		return 0;
3871		}
3872
3873		int updateInitrd(struct grubConfig *cfg, const char *image,
3874		const char *prefix, const char *initrd, const char *title)
3875		{
3876		struct singleEntry *entry;
3877		struct singleLine *line, *kernelLine, *endLine = NULL;
3878		int index = 0;
3879
3880		if (!image)
3881		return 0;
3882
3883		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3884		kernelLine =
3885		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3886		entry->lines);
3887		if (!kernelLine)
3888		continue;
3889
3890		/* if title is supplied, the entry's title must match it. */
3891		if (title) {
3892		char *linetitle;
3893
3894		line =
3895		getLineByType(LT_TITLE | LT_MENUENTRY,
3896		entry->lines);
3897		if (!line)
3898		continue;
3899
3900		linetitle = extractTitle(cfg, line);
3901		if (!linetitle)
3902		continue;
3903		if (strcmp(title, linetitle)) {
3904		free(linetitle);
3905		continue;
3906		}
3907		free(linetitle);
3908		}
3909
3910		line =
3911		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3912		entry->lines);
3913		if (line)
3914		removeLine(entry, line);
3915		if (prefix) {
3916		int prefixLen = strlen(prefix);
3917		if (!strncmp(initrd, prefix, prefixLen))
3918		initrd += prefixLen;
3919		}
3920		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3921		if (endLine)
3922		removeLine(entry, endLine);
3923		enum lineType_e lt;
3924		switch (kernelLine->type) {
3925		case LT_KERNEL:
3926		lt = LT_INITRD;
3927		break;
3928		case LT_KERNEL_EFI:
3929		lt = LT_INITRD_EFI;
3930		break;
3931		case LT_KERNEL_16:
3932		lt = LT_INITRD_16;
3933		break;
3934		default:
3935		lt = preferredLineType(LT_INITRD, cfg->cfi);
3936		}
3937		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3938		if (!line)
3939		return 1;
3940		if (endLine) {
3941		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3942		if (!line)
3943		return 1;
3944		}
3945
3946		break;
3947		}
3948
3949		return 0;
3950		}
3951
3952		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3953		{
3954		int fd;
3955		unsigned char bootSect[512];
3956		int offset;
3957
3958		fd = open(device, O_RDONLY);
3959		if (fd < 0) {
3960		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3961		device, strerror(errno));
3962	return 1;	return 1;
	}
	break;
3963	}	}
	}
3964
3965	if (arg < -1) {	if (read(fd, bootSect, 512) != 512) {
3966	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3967	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	device, strerror(errno));
3968	poptStrerror(arg));	return 1;
3969	return 1;	}
3970	}	close(fd);
3971
3972		/* first three bytes should match, a jmp short should be in there */
3973		if (memcmp(boot, bootSect, 3))
3974		return 0;
3975
3976		if (boot[1] == JMP_SHORT_OPCODE) {
3977		offset = boot[2] + 2;
3978		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3979		offset = (boot[3] << 8) + boot[2] + 2;
3980		} else if (boot[0] == JMP_SHORT_OPCODE) {
3981		offset = boot[1] + 2;
3982		/*
3983		* it looks like grub, when copying stage1 into the mbr,
3984		* patches stage1 right after the JMP location, replacing
3985		* other instructions such as JMPs for NOOPs. So, relax the
3986		* check a little bit by skipping those different bytes.
3987		*/
3988		if ((bootSect[offset + 1] == NOOP_OPCODE)
3989		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3990		offset = offset + 3;
3991		}
3992		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3993		offset = (boot[2] << 8) + boot[1] + 2;
3994		} else {
3995		return 0;
3996		}
3997
3998		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3999		return 0;
4000
4001		return 2;
4002		}
4003
4004		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4005		{
4006		int fd;
4007		char buf[65536];
4008		char *end;
4009		char *chptr;
4010		char *chptr2;
4011		int rc;
4012
4013		/* it's on raid; we need to parse /proc/mdstat and check all of the
4014		*raw* devices listed in there */
4015
4016		if (!strncmp(mdDev, "/dev/", 5))
4017		mdDev += 5;
4018
4019		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4020		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4021		strerror(errno));
4022		return 2;
4023		}
4024
4025		rc = read(fd, buf, sizeof(buf) - 1);
4026		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4027		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4028		strerror(errno));
4029		close(fd);
4030		return 2;
4031		}
4032		close(fd);
4033		buf[rc] = '\0';
4034
4035		chptr = buf;
4036		while (*chptr) {
4037		end = strchr(chptr, '\n');
4038		if (!end)
4039		break;
4040		*end = '\0';
4041
4042		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4043		chptr[strlen(mdDev)] == ' ') {
4044
4045		/* found the device */
4046		while (*chptr && *chptr != ':')
4047		chptr++;
4048		chptr++;
4049		while (*chptr && isspace(*chptr))
4050		chptr++;
4051
4052		/* skip the "active" bit */
4053		while (*chptr && !isspace(*chptr))
4054		chptr++;
4055		while (*chptr && isspace(*chptr))
4056		chptr++;
4057
4058		/* skip the raid level */
4059		while (*chptr && !isspace(*chptr))
4060		chptr++;
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063
4064		/* everything else is partition stuff */
4065		while (*chptr) {
4066		chptr2 = chptr;
4067		while (*chptr2 && *chptr2 != '[')
4068		chptr2++;
4069		if (!*chptr2)
4070		break;
4071
4072		/* yank off the numbers at the end */
4073		chptr2--;
4074		while (isdigit(*chptr2) && chptr2 > chptr)
4075		chptr2--;
4076		chptr2++;
4077		*chptr2 = '\0';
4078
4079		/* Better, now we need the /dev/ back. We're
4080		* done with everything before this point, so
4081		* we can just put the /dev/ part there.
4082		* There will always be room. */
4083		memcpy(chptr - 5, "/dev/", 5);
4084		rc = checkDeviceBootloader(chptr - 5, boot);
4085		if (rc != 2) {
4086		return rc;
4087		}
4088
4089		chptr = chptr2 + 1;
4090		/* skip the [11] bit */
4091		while (*chptr && !isspace(*chptr))
4092		chptr++;
4093		/* and move to the next one */
4094		while (*chptr && isspace(*chptr))
4095		chptr++;
4096		}
4097
4098		/*  we're good to go */
4099		return 2;
4100		}
4101
4102		chptr = end + 1;
4103		}
4104
4105		fprintf(stderr,
4106		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4107		mdDev);
4108		return 0;
4109		}
4110
4111		int checkForLilo(struct grubConfig *config)
4112		{
4113		int fd;
4114		unsigned char boot[512];
4115		struct singleLine *line;
4116
4117		for (line = config->theLines; line; line = line->next)
4118		if (line->type == LT_BOOT)
4119		break;
4120
4121		if (!line) {
4122		fprintf(stderr,
4123		_
4124		("grubby: no boot line found in lilo configuration\n"));
4125		return 1;
4126		}
4127
4128		if (line->numElements != 2)
4129		return 1;
4130
4131		fd = open("/boot/boot.b", O_RDONLY);
4132		if (fd < 0) {
4133		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4134		"/boot/boot.b", strerror(errno));
4135		return 1;
4136		}
4137
4138		if (read(fd, boot, 512) != 512) {
4139		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4140		"/boot/boot.b", strerror(errno));
4141		return 1;
4142		}
4143		close(fd);
4144
4145		if (!strncmp("/dev/md", line->elements[1].item, 7))
4146		return checkLiloOnRaid(line->elements[1].item, boot);
4147
4148		return checkDeviceBootloader(line->elements[1].item, boot);
4149		}
4150
4151		int checkForGrub2(struct grubConfig *config)
4152		{
4153		if (!access("/etc/grub.d/", R_OK))
4154		return 2;
4155
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4156	return 1;	return 1;
4157	}	}
4158
4159		int checkForGrub(struct grubConfig *config)
4160		{
4161		int fd;
4162		unsigned char bootSect[512];
4163		char *boot;
4164		int onSuse = isSuseSystem();
4165
4166		if (onSuse) {
4167		if (parseSuseGrubConf(NULL, &boot))
4168		return 0;
4169		} else {
4170		if (parseSysconfigGrub(NULL, &boot))
4171		return 0;
4172		}
4173
4174		/* assume grub is not installed -- not an error condition */
4175		if (!boot)
4176		return 0;
4177
4178		fd = open("/boot/grub/stage1", O_RDONLY);
4179		if (fd < 0)
4180		/* this doesn't exist if grub hasn't been installed */
4181		return 0;
4182
4183		if (read(fd, bootSect, 512) != 512) {
4184		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4185		"/boot/grub/stage1", strerror(errno));
4186		close(fd);
4187		return 1;
4188		}
4189		close(fd);
4190
4191		/* The more elaborate checks do not work on SuSE. The checks done
4192		* seem to be reasonble (at least for now), so just return success
4193		*/
4194		if (onSuse)
4195		return 2;
4196
4197		return checkDeviceBootloader(boot, bootSect);
4198		}
4199
4200		int checkForExtLinux(struct grubConfig *config)
4201		{
4202		int fd;
4203		unsigned char bootSect[512];
4204		char *boot;
4205		char executable[] = "/boot/extlinux/extlinux";
4206
4207		printf("entered: checkForExtLinux()\n");
4208
4209		if (parseSysconfigGrub(NULL, &boot))
4210		return 0;
4211
4212		/* assume grub is not installed -- not an error condition */
4213		if (!boot)
4214		return 0;
4215
4216		fd = open(executable, O_RDONLY);
4217		if (fd < 0)
4218		/* this doesn't exist if grub hasn't been installed */
4219		return 0;
4220
4221		if (read(fd, bootSect, 512) != 512) {
4222		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4223		executable, strerror(errno));
4224		return 1;
4225		}
4226		close(fd);
4227
4228		return checkDeviceBootloader(boot, bootSect);
4229		}
4230
4231		int checkForYaboot(struct grubConfig *config)
4232		{
4233		/*
4234		* This is a simplistic check that we consider good enough for own puporses
4235		*
4236		* If we were to properly check if yaboot is *installed* we'd need to:
4237		* 1) get the system boot device (LT_BOOT)
4238		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4239		*    the content on the boot device
4240		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4241		* 4) check again if binary and boot device contents match
4242		*/
4243		if (!access("/etc/yaboot.conf", R_OK))
4244		return 2;
4245
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4246	return 1;	return 1;
4247	} else if (bootloaderProbe && grubConfig) {	}
4248	fprintf(stderr,
4249	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4250		{
4251		if (!access("/etc/elilo.conf", R_OK))
4252		return 2;
4253
4254	return 1;	return 1;
4255	} else if (configureGrub2) {	}
4256	cfi = &grub2ConfigType;
4257	} else if (configureLilo) {	static char *getRootSpecifier(char *str)
4258	cfi = &liloConfigType;	{
4259	} else if (configureGrub) {	char *idx, *rootspec = NULL;
4260	cfi = &grubConfigType;
4261	} else if (configureELilo) {	if (*str == '(') {
4262	cfi = &eliloConfigType;	idx = rootspec = strdup(str);
4263	} else if (configureYaboot) {	while (*idx && (*idx != ')') && (!isspace(*idx)))
4264	cfi = &yabootConfigType;	idx++;
4265	} else if (configureSilo) {	*(++idx) = '\0';
4266	cfi = &siloConfigType;	}
4267	} else if (configureZipl) {	return rootspec;
4268	cfi = &ziplConfigType;	}
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
4269
4270	if (!cfi) {	static char *getInitrdVal(struct grubConfig *config,
4271	#ifdef __ia64__	const char *prefix, struct singleLine *tmplLine,
4272	cfi = &eliloConfigType;	const char *newKernelInitrd,
4273	#elif __powerpc__	const char **extraInitrds, int extraInitrdCount)
4274	cfi = &yabootConfigType;	{
4275	#elif __sparc__	char *initrdVal, *end;
4276	cfi = &siloConfigType;	int i;
4277	#elif __s390__	size_t totalSize;
4278	cfi = &ziplConfigType;	size_t prefixLen;
4279	#elif __s390x__	char separatorChar;
4280	cfi = &ziplConfigtype;
4281	#else	prefixLen = strlen(prefix);
4282	if (grub2FindConfig(&grub2ConfigType))	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4283	cfi = &grub2ConfigType;
4284		for (i = 0; i < extraInitrdCount; i++) {
4285		totalSize += sizeof(separatorChar);
4286		totalSize += strlen(extraInitrds[i]) - prefixLen;
4287		}
4288
4289		initrdVal = end = malloc(totalSize);
4290
4291		end = stpcpy(end, newKernelInitrd + prefixLen);
4292
4293		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4294		for (i = 0; i < extraInitrdCount; i++) {
4295		const char *extraInitrd;
4296		int j;
4297
4298		extraInitrd = extraInitrds[i] + prefixLen;
4299		/* Don't add entries that are already there */
4300		if (tmplLine != NULL) {
4301		for (j = 2; j < tmplLine->numElements; j++)
4302		if (strcmp
4303		(extraInitrd,
4304		tmplLine->elements[j].item) == 0)
4305		break;
4306
4307		if (j != tmplLine->numElements)
4308		continue;
4309		}
4310
4311		*end++ = separatorChar;
4312		end = stpcpy(end, extraInitrd);
4313		}
4314
4315		return initrdVal;
4316		}
4317
4318		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4319		const char *prefix,
4320		const char *newKernelPath, const char *newKernelTitle,
4321		const char *newKernelArgs, const char *newKernelInitrd,
4322		const char **extraInitrds, int extraInitrdCount,
4323		const char *newMBKernel, const char *newMBKernelArgs,
4324		const char *newDevTreePath, int newIndex)
4325		{
4326		struct singleEntry *new, *entry, *prev = NULL;
4327		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4328		int needs;
4329		char *indexs;
4330		char *chptr;
4331		int rc;
4332
4333		if (!newKernelPath)
4334		return 0;
4335
4336		rc = asprintf(&indexs, "%d", newIndex);
4337		if (rc < 0)
4338		return 1;
4339
4340		/* if the newKernelTitle is too long silently munge it into something
4341		* we can live with. truncating is first check, then we'll just mess with
4342		* it until it looks better */
4343		if (config->cfi->maxTitleLength &&
4344		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4345		char *buf = alloca(config->cfi->maxTitleLength + 7);
4346		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4347		int i = 1;
4348
4349		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4350		newKernelTitle);
4351		while (findEntryByPath(config, buf, NULL, NULL)) {
4352		sprintf(numBuf, "%d", i++);
4353		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4354		}
4355
4356		newKernelTitle = buf + 6;
4357		}
4358
4359		new = malloc(sizeof(*new));
4360		new->skip = 0;
4361		new->multiboot = 0;
4362		new->lines = NULL;
4363		entry = config->entries;
4364		for (unsigned int i = 0; i < newIndex; i++) {
4365		if (!entry)
4366		break;
4367		prev = entry;
4368		entry = entry->next;
4369		}
4370		new->next = entry;
4371
4372		if (prev)
4373		prev->next = new;
4374	else	else
4375	cfi = &grubConfigType;	config->entries = new;
	#endif
	}
4376
4377	if (!grubConfig) {	/* copy/update from the template */
4378	if (cfi->findConfig)	needs = NEED_KERNEL | NEED_TITLE;
4379	grubConfig = cfi->findConfig(cfi);	if (newKernelInitrd)
4380	if (!grubConfig)	needs |= NEED_INITRD;
4381	grubConfig = cfi->defaultConfig;	if (newMBKernel) {
4382	}	needs |= NEED_MB;
4383		new->multiboot = 1;
4384		}
4385		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4386		needs |= NEED_DEVTREE;
4387
4388		if (template) {
4389		for (masterLine = template->lines;
4390		masterLine && (tmplLine = lineDup(masterLine));
4391		lineFree(tmplLine), masterLine = masterLine->next) {
4392		dbgPrintf("addNewKernel processing %d\n",
4393		tmplLine->type);
4394
4395		/* skip comments */
4396		chptr = tmplLine->indent;
4397		while (*chptr && isspace(*chptr))
4398		chptr++;
4399		if (*chptr == '#')
4400		continue;
4401
4402		if (iskernel(tmplLine->type)
4403		&& tmplLine->numElements >= 2) {
4404		if (!template->multiboot && (needs & NEED_MB)) {
4405		/* it's not a multiboot template and
4406		* this is the kernel line.  Try to
4407		* be intelligent about inserting the
4408		* hypervisor at the same time.
4409		*/
4410		if (config->cfi->mbHyperFirst) {
4411		/* insert the hypervisor first */
4412		newLine =
4413		addLine(new, config->cfi,
4414		LT_HYPER,
4415		tmplLine->indent,
4416		newMBKernel +
4417		strlen(prefix));
4418		/* set up for adding the
4419		* kernel line */
4420		free(tmplLine->indent);
4421		tmplLine->indent =
4422		strdup(config->
4423		secondaryIndent);
4424		needs &= ~NEED_MB;
4425		}
4426		if (needs & NEED_KERNEL) {
4427		/* use addLineTmpl to
4428		* preserve line elements,
4429		* otherwise we could just
4430		* call addLine.
4431		* Unfortunately this means
4432		* making some changes to the
4433		* template such as the
4434		* indent change above and
4435		* the type change below.
4436		*/
4437		struct keywordTypes *mbm_kw =
4438		getKeywordByType
4439		(LT_MBMODULE, config->cfi);
4440		if (mbm_kw) {
4441		tmplLine->type =
4442		LT_MBMODULE;
4443		free(tmplLine->
4444		elements[0].item);
4445		tmplLine->elements[0].
4446		item =
4447		strdup(mbm_kw->key);
4448		}
4449		newLine =
4450		addLineTmpl(new, tmplLine,
4451		newLine,
4452		newKernelPath +
4453		strlen(prefix),
4454		config->cfi);
4455		needs &= ~NEED_KERNEL;
4456		}
4457		if (needs & NEED_MB) { /* !mbHyperFirst */
4458		newLine =
4459		addLine(new, config->cfi,
4460		LT_HYPER,
4461		config->
4462		secondaryIndent,
4463		newMBKernel +
4464		strlen(prefix));
4465		needs &= ~NEED_MB;
4466		}
4467		} else if (needs & NEED_KERNEL) {
4468		newLine =
4469		addLineTmpl(new, tmplLine, newLine,
4470		newKernelPath +
4471		strlen(prefix),
4472		config->cfi);
4473		needs &= ~NEED_KERNEL;
4474		}
4475
4476		} else if (tmplLine->type == LT_HYPER &&
4477		tmplLine->numElements >= 2) {
4478		if (needs & NEED_MB) {
4479		newLine =
4480		addLineTmpl(new, tmplLine, newLine,
4481		newMBKernel +
4482		strlen(prefix),
4483		config->cfi);
4484		needs &= ~NEED_MB;
4485		}
4486
4487		} else if (tmplLine->type == LT_MBMODULE &&
4488		tmplLine->numElements >= 2) {
4489		if (new->multiboot) {
4490		if (needs & NEED_KERNEL) {
4491		newLine =
4492		addLineTmpl(new, tmplLine,
4493		newLine,
4494		newKernelPath +
4495		strlen(prefix),
4496		config->cfi);
4497		needs &= ~NEED_KERNEL;
4498		} else if (config->cfi->mbInitRdIsModule
4499		&& (needs & NEED_INITRD)) {
4500		char *initrdVal;
4501		initrdVal =
4502		getInitrdVal(config, prefix,
4503		tmplLine,
4504		newKernelInitrd,
4505		extraInitrds,
4506		extraInitrdCount);
4507		newLine =
4508		addLineTmpl(new, tmplLine,
4509		newLine,
4510		initrdVal,
4511		config->cfi);
4512		free(initrdVal);
4513		needs &= ~NEED_INITRD;
4514		}
4515		} else if (needs & NEED_KERNEL) {
4516		/* template is multi but new is not,
4517		* insert the kernel in the first
4518		* module slot
4519		*/
4520		tmplLine->type =
4521		preferredLineType(LT_KERNEL,
4522		config->cfi);
4523		free(tmplLine->elements[0].item);
4524		tmplLine->elements[0].item =
4525		strdup(getKeywordByType
4526		(tmplLine->type,
4527		config->cfi)->key);
4528		newLine =
4529		addLineTmpl(new, tmplLine, newLine,
4530		newKernelPath +
4531		strlen(prefix),
4532		config->cfi);
4533		needs &= ~NEED_KERNEL;
4534		} else if (needs & NEED_INITRD) {
4535		char *initrdVal;
4536		/* template is multi but new is not,
4537		* insert the initrd in the second
4538		* module slot
4539		*/
4540		tmplLine->type =
4541		preferredLineType(LT_INITRD,
4542		config->cfi);
4543		free(tmplLine->elements[0].item);
4544		tmplLine->elements[0].item =
4545		strdup(getKeywordByType
4546		(tmplLine->type,
4547		config->cfi)->key);
4548		initrdVal =
4549		getInitrdVal(config, prefix,
4550		tmplLine,
4551		newKernelInitrd,
4552		extraInitrds,
4553		extraInitrdCount);
4554		newLine =
4555		addLineTmpl(new, tmplLine, newLine,
4556		initrdVal, config->cfi);
4557		free(initrdVal);
4558		needs &= ~NEED_INITRD;
4559		}
4560
4561		} else if (isinitrd(tmplLine->type)
4562		&& tmplLine->numElements >= 2) {
4563		if (needs & NEED_INITRD && new->multiboot
4564		&& !template->multiboot
4565		&& config->cfi->mbInitRdIsModule) {
4566		/* make sure we don't insert the
4567		* module initrd before the module
4568		* kernel... if we don't do it here,
4569		* it will be inserted following the
4570		* template.
4571		*/
4572		if (!needs & NEED_KERNEL) {
4573		char *initrdVal;
4574
4575		initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLine(new, config->cfi,
4583		LT_MBMODULE,
4584		config->
4585		secondaryIndent,
4586		initrdVal);
4587		free(initrdVal);
4588		needs &= ~NEED_INITRD;
4589		}
4590		} else if (needs & NEED_INITRD) {
4591		char *initrdVal;
4592		initrdVal =
4593		getInitrdVal(config, prefix,
4594		tmplLine,
4595		newKernelInitrd,
4596		extraInitrds,
4597		extraInitrdCount);
4598		newLine =
4599		addLineTmpl(new, tmplLine, newLine,
4600		initrdVal, config->cfi);
4601		free(initrdVal);
4602		needs &= ~NEED_INITRD;
4603		}
4604
4605		} else if (tmplLine->type == LT_MENUENTRY &&
4606		(needs & NEED_TITLE)) {
4607		requote(tmplLine, config->cfi);
4608		char *nkt = malloc(strlen(newKernelTitle) + 3);
4609		strcpy(nkt, "'");
4610		strcat(nkt, newKernelTitle);
4611		strcat(nkt, "'");
4612		newLine =
4613		addLineTmpl(new, tmplLine, newLine, nkt,
4614		config->cfi);
4615		free(nkt);
4616		needs &= ~NEED_TITLE;
4617		} else if (tmplLine->type == LT_TITLE &&
4618		(needs & NEED_TITLE)) {
4619		if (tmplLine->numElements >= 2) {
4620		newLine =
4621		addLineTmpl(new, tmplLine, newLine,
4622		newKernelTitle,
4623		config->cfi);
4624		needs &= ~NEED_TITLE;
4625		} else if (tmplLine->numElements == 1 &&
4626		config->cfi->titleBracketed) {
4627		/* addLineTmpl doesn't handle
4628		* titleBracketed */
4629		newLine =
4630		addLine(new, config->cfi, LT_TITLE,
4631		tmplLine->indent,
4632		newKernelTitle);
4633		needs &= ~NEED_TITLE;
4634		}
4635		} else if (tmplLine->type == LT_ECHO) {
4636		requote(tmplLine, config->cfi);
4637		static const char *prefix = "'Loading ";
4638		if (tmplLine->numElements > 1 &&
4639		strstr(tmplLine->elements[1].item, prefix)
4640		&& masterLine->next
4641		&& iskernel(masterLine->next->type)) {
4642		char *newTitle =
4643		malloc(strlen(prefix) +
4644		strlen(newKernelTitle) + 2);
4645
4646		strcpy(newTitle, prefix);
4647		strcat(newTitle, newKernelTitle);
4648		strcat(newTitle, "'");
4649		newLine =
4650		addLine(new, config->cfi, LT_ECHO,
4651		tmplLine->indent, newTitle);
4652		free(newTitle);
4653		} else {
4654		/* pass through other lines from the
4655		* template */
4656		newLine =
4657		addLineTmpl(new, tmplLine, newLine,
4658		NULL, config->cfi);
4659		}
4660		} else if (tmplLine->type == LT_DEVTREE &&
4661		tmplLine->numElements == 2
4662		&& newDevTreePath) {
4663		newLine =
4664		addLineTmpl(new, tmplLine, newLine,
4665		newDevTreePath + strlen(prefix),
4666		config->cfi);
4667		needs &= ~NEED_DEVTREE;
4668		} else if (tmplLine->type == LT_ENTRY_END
4669		&& needs & NEED_DEVTREE) {
4670		const char *ndtp = newDevTreePath;
4671		if (!strncmp
4672		(newDevTreePath, prefix, strlen(prefix)))
4673		ndtp += strlen(prefix);
4674		newLine = addLine(new, config->cfi, LT_DEVTREE,
4675		config->secondaryIndent,
4676		ndtp);
4677		needs &= ~NEED_DEVTREE;
4678		newLine =
4679		addLineTmpl(new, tmplLine, newLine, NULL,
4680		config->cfi);
4681		} else {
4682		/* pass through other lines from the template */
4683		newLine =
4684		addLineTmpl(new, tmplLine, newLine, NULL,
4685		config->cfi);
4686		}
4687		}
4688
4689		} else {
4690		/* don't have a template, so start the entry with the
4691		* appropriate starting line
4692		*/
4693		switch (config->cfi->entryStart) {
4694		case LT_KERNEL:
4695		case LT_KERNEL_EFI:
4696		case LT_KERNEL_16:
4697		if (new->multiboot && config->cfi->mbHyperFirst) {
4698		/* fall through to LT_HYPER */
4699		} else {
4700		newLine = addLine(new, config->cfi,
4701		preferredLineType(LT_KERNEL,
4702		config->
4703		cfi),
4704		config->primaryIndent,
4705		newKernelPath +
4706		strlen(prefix));
4707		needs &= ~NEED_KERNEL;
4708		break;
4709		}
4710
4711	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	case LT_HYPER:
4712	newKernelPath || removeKernelPath || makeDefault ||	newLine = addLine(new, config->cfi, LT_HYPER,
4713	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	config->primaryIndent,
4714	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	newMBKernel + strlen(prefix));
4715		needs &= ~NEED_MB;
4716		break;
4717
4718		case LT_MENUENTRY:{
4719		char *nkt = malloc(strlen(newKernelTitle) + 3);
4720		strcpy(nkt, "'");
4721		strcat(nkt, newKernelTitle);
4722		strcat(nkt, "'");
4723		newLine =
4724		addLine(new, config->cfi, LT_MENUENTRY,
4725		config->primaryIndent, nkt);
4726		free(nkt);
4727		needs &= ~NEED_TITLE;
4728		needs |= NEED_END;
4729		break;
4730		}
4731		case LT_TITLE:
4732		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4733		char *templabel;
4734		int x = 0, y = 0;
4735
4736		templabel = strdup(newKernelTitle);
4737		while (templabel[x]) {
4738		if (templabel[x] == ' ') {
4739		y = x;
4740		while (templabel[y]) {
4741		templabel[y] =
4742		templabel[y + 1];
4743		y++;
4744		}
4745		}
4746		x++;
4747		}
4748		newLine = addLine(new, config->cfi, LT_TITLE,
4749		config->primaryIndent,
4750		templabel);
4751		free(templabel);
4752		} else {
4753		newLine = addLine(new, config->cfi, LT_TITLE,
4754		config->primaryIndent,
4755		newKernelTitle);
4756		}
4757		needs &= ~NEED_TITLE;
4758		break;
4759
4760		default:
4761		abort();
4762		}
4763		}
4764
4765		struct singleLine *endLine = NULL;
4766		endLine = getLineByType(LT_ENTRY_END, new->lines);
4767		if (endLine) {
4768		removeLine(new, endLine);
4769		needs |= NEED_END;
4770		}
4771
4772		/* add the remainder of the lines, i.e. those that either
4773		* weren't present in the template, or in the case of no template,
4774		* all the lines following the entryStart.
4775		*/
4776		if (needs & NEED_TITLE) {
4777		newLine = addLine(new, config->cfi, LT_TITLE,
4778		config->secondaryIndent, newKernelTitle);
4779		needs &= ~NEED_TITLE;
4780		}
4781		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4782		newLine = addLine(new, config->cfi, LT_HYPER,
4783		config->secondaryIndent,
4784		newMBKernel + strlen(prefix));
4785		needs &= ~NEED_MB;
4786		}
4787		if (needs & NEED_KERNEL) {
4788		newLine = addLine(new, config->cfi,
4789		(new->multiboot
4790		&& getKeywordByType(LT_MBMODULE,
4791		config->cfi))
4792		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4793		config->
4794		cfi),
4795		config->secondaryIndent,
4796		newKernelPath + strlen(prefix));
4797		needs &= ~NEED_KERNEL;
4798		}
4799		if (needs & NEED_MB) {
4800		newLine = addLine(new, config->cfi, LT_HYPER,
4801		config->secondaryIndent,
4802		newMBKernel + strlen(prefix));
4803		needs &= ~NEED_MB;
4804		}
4805		if (needs & NEED_INITRD) {
4806		char *initrdVal;
4807		initrdVal =
4808		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4809		extraInitrds, extraInitrdCount);
4810		newLine =
4811		addLine(new, config->cfi,
4812		(new->multiboot
4813		&& getKeywordByType(LT_MBMODULE, config->cfi))
4814		? LT_MBMODULE : preferredLineType(LT_INITRD,
4815		config->cfi),
4816		config->secondaryIndent, initrdVal);
4817		free(initrdVal);
4818		needs &= ~NEED_INITRD;
4819		}
4820		if (needs & NEED_DEVTREE) {
4821		newLine = addLine(new, config->cfi, LT_DEVTREE,
4822		config->secondaryIndent, newDevTreePath);
4823		needs &= ~NEED_DEVTREE;
4824		}
4825
4826		/* NEEDS_END must be last on bootloaders that need it... */
4827		if (needs & NEED_END) {
4828		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4829		config->secondaryIndent, NULL);
4830		needs &= ~NEED_END;
4831		}
4832
4833		if (needs) {
4834		printf(_("grubby: needs=%d, aborting\n"), needs);
4835		abort();
4836		}
4837
4838		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4839		newMBKernelArgs, NULL)) {
4840		config->isModified = 1;
4841		return 1;
4842		}
4843
4844		return 0;
4845		}
4846
4847		int main(int argc, const char **argv)
4848		{
4849		poptContext optCon;
4850		const char *grubConfig = NULL;
4851		char *outputFile = NULL;
4852		int arg = 0;
4853		int flags = 0;
4854		int badImageOkay = 0;
4855		int configureGrub2 = 0;
4856		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4857		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4858		int configureExtLinux = 0;
4859		int bootloaderProbe = 0;
4860		int extraInitrdCount = 0;
4861		char *updateKernelPath = NULL;
4862		char *newKernelPath = NULL;
4863		char *removeKernelPath = NULL;
4864		char *newKernelArgs = NULL;
4865		char *newKernelInitrd = NULL;
4866		char *newKernelTitle = NULL;
4867		char *newDevTreePath = NULL;
4868		char *newMBKernel = NULL;
4869		char *newMBKernelArgs = NULL;
4870		int newIndex = 0;
4871		char *removeMBKernelArgs = NULL;
4872		char *removeMBKernel = NULL;
4873		char *bootPrefix = NULL;
4874		char *defaultKernel = NULL;
4875		char *removeArgs = NULL;
4876		char *kernelInfo = NULL;
4877		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4878		char *envPath = NULL;
4879		const char *chptr = NULL;
4880		struct configFileInfo *cfi = NULL;
4881		struct grubConfig *config;
4882		struct singleEntry *template = NULL;
4883		int copyDefault = 0, makeDefault = 0;
4884		int displayDefault = 0;
4885		int displayDefaultIndex = 0;
4886		int displayDefaultTitle = 0;
4887		int defaultIndex = -1;
4888		struct poptOption options[] = {
4889		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4890		_("add an entry for the specified kernel"), _("kernel-path")},
4891		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4892		_("add an entry for the specified multiboot kernel"), NULL},
4893		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4894		_("default arguments for the new kernel or new arguments for "
4895		"kernel being updated"), _("args")},
4896		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4897		_("default arguments for the new multiboot kernel or "
4898		"new arguments for multiboot kernel being updated"), NULL},
4899		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4900		_
4901		("don't sanity check images in boot entries (for testing only)"),
4902		NULL},
4903		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4904		_
4905		("filesystem which contains /boot directory (for testing only)"),
4906		_("bootfs")},
4907		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4908		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4909		_("check which bootloader is installed on boot sector")},
4910		#endif
4911		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4912		_("path to grub config file to update (\"-\" for stdin)"),
4913		_("path")},
4914		{"copy-default", 0, 0, &copyDefault, 0,
4915		_("use the default boot entry as a template for the new entry "
4916		"being added; if the default is not a linux image, or if "
4917		"the kernel referenced by the default image does not exist, "
4918		"the first linux entry whose kernel does exist is used as the "
4919		"template"), NULL},
4920		{"debug", 0, 0, &debug, 0,
4921		_("print debugging information for failures")},
4922		{"default-kernel", 0, 0, &displayDefault, 0,
4923		_("display the path of the default kernel")},
4924		{"default-index", 0, 0, &displayDefaultIndex, 0,
4925		_("display the index of the default kernel")},
4926		{"default-title", 0, 0, &displayDefaultTitle, 0,
4927		_("display the title of the default kernel")},
4928		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4929		_("device tree file for new stanza"), _("dtb-path")},
4930		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4931		_("device tree directory for new stanza"), _("dtb-path")},
4932		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4933		_("configure elilo bootloader")},
4934		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4935		_("force grub2 stanzas to use efi")},
4936		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4937		_("path for environment data"),
4938		_("path")},
4939		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4940		_("configure extlinux bootloader (from syslinux)")},
4941		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4942		_("configure grub bootloader")},
4943		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4944		_("configure grub2 bootloader")},
4945		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4946		_("display boot information for specified kernel"),
4947		_("kernel-path")},
4948		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4949		_("initrd image for the new kernel"), _("initrd-path")},
4950		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4951		_
4952		("auxiliary initrd image for things other than the new kernel"),
4953		_("initrd-path")},
4954		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4955		_("configure lilo bootloader")},
4956		{"make-default", 0, 0, &makeDefault, 0,
4957		_("make the newly added entry the default boot entry"), NULL},
4958		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4959		_("path to output updated config file (\"-\" for stdout)"),
4960		_("path")},
4961		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4962		_("remove kernel arguments"), NULL},
4963		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4964		_("remove multiboot kernel arguments"), NULL},
4965		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4966		_("remove all entries for the specified kernel"),
4967		_("kernel-path")},
4968		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4969		_("remove all entries for the specified multiboot kernel"),
4970		NULL},
4971		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4972		_("make the first entry referencing the specified kernel "
4973		"the default"), _("kernel-path")},
4974		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4975		_("make the given entry index the default entry"),
4976		_("entry-index")},
4977		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4978		_("use the given index when creating a new entry"),
4979		_("entry-index")},
4980		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4981		_("configure silo bootloader")},
4982		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4983		_("title to use for the new kernel entry"), _("entry-title")},
4984		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4985		_("updated information for the specified kernel"),
4986		_("kernel-path")},
4987		{"version", 'v', 0, NULL, 'v',
4988		_("print the version of this program and exit"), NULL},
4989		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4990		_("configure yaboot bootloader")},
4991		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4992		_("configure zipl bootloader")},
4993		POPT_AUTOHELP {0, 0, 0, 0, 0}
4994		};
4995
4996		useextlinuxmenu = 0;
4997
4998		int i = 0;
4999		for (int j = 1; j < argc; j++)
5000		i += strlen(argv[j]) + 1;
5001		saved_command_line = malloc(i);
5002		if (!saved_command_line) {
5003		fprintf(stderr, "grubby: %m\n");
5004		exit(1);
5005		}
5006		saved_command_line[0] = '\0';
5007		for (int j = 1; j < argc; j++) {
5008		strcat(saved_command_line, argv[j]);
5009		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5010		}
5011
5012		optCon = poptGetContext("grubby", argc, argv, options, 0);
5013		poptReadDefaultConfig(optCon, 1);
5014
5015		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5016		switch (arg) {
5017		case 'v':
5018		printf("grubby version %s\n", VERSION);
5019		exit(0);
5020		break;
5021		case 'i':
5022		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5023		extraInitrds[extraInitrdCount++] =
5024		strdup(poptGetOptArg(optCon));
5025		} else {
5026		fprintf(stderr,
5027		_
5028		("grubby: extra initrd maximum is %d\n"),
5029		extraInitrdCount);
5030		return 1;
5031		}
5032		break;
5033		}
5034		}
5035
5036		if (arg < -1) {
5037		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5038		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5039		poptStrerror(arg));
5040		return 1;
5041		}
5042
5043		if ((chptr = poptGetArg(optCon))) {
5044		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5045		return 1;
5046		}
5047
5048		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5049		configureYaboot + configureSilo + configureZipl +
5050		configureExtLinux) > 1) {
5051		fprintf(stderr,
5052		_("grubby: cannot specify multiple bootloaders\n"));
5053		return 1;
5054		} else if (bootloaderProbe && grubConfig) {
5055		fprintf(stderr,
5056		_
5057		("grubby: cannot specify config file with --bootloader-probe\n"));
5058		return 1;
5059		} else if (configureGrub2) {
5060		cfi = &grub2ConfigType;
5061		if (envPath)
5062		cfi->envFile = envPath;
5063		} else if (configureLilo) {
5064		cfi = &liloConfigType;
5065		} else if (configureGrub) {
5066		cfi = &grubConfigType;
5067		} else if (configureELilo) {
5068		cfi = &eliloConfigType;
5069		} else if (configureYaboot) {
5070		cfi = &yabootConfigType;
5071		} else if (configureSilo) {
5072		cfi = &siloConfigType;
5073		} else if (configureZipl) {
5074		cfi = &ziplConfigType;
5075		} else if (configureExtLinux) {
5076		cfi = &extlinuxConfigType;
5077		useextlinuxmenu = 1;
5078		}
5079
5080		if (!cfi) {
5081		if (grub2FindConfig(&grub2ConfigType)) {
5082		cfi = &grub2ConfigType;
5083		if (envPath)
5084		cfi->envFile = envPath;
5085		} else
5086		#ifdef __ia64__
5087		cfi = &eliloConfigType;
5088		#elif __powerpc__
5089		cfi = &yabootConfigType;
5090		#elif __sparc__
5091		cfi = &siloConfigType;
5092		#elif __s390__
5093		cfi = &ziplConfigType;
5094		#elif __s390x__
5095		cfi = &ziplConfigtype;
5096		#else
5097		cfi = &grubConfigType;
5098		#endif
5099		}
5100
5101		if (!grubConfig) {
5102		if (cfi->findConfig)
5103		grubConfig = cfi->findConfig(cfi);
5104		if (!grubConfig)
5105		grubConfig = cfi->defaultConfig;
5106		}
5107
5108		if (bootloaderProbe && (displayDefault || kernelInfo ||
5109		newKernelPath || removeKernelPath || makeDefault
5110		|| defaultKernel || displayDefaultIndex
5111		|| displayDefaultTitle
5112		|| (defaultIndex >= 0))) {
5113		fprintf(stderr,
5114		_("grubby: --bootloader-probe may not be used with "
5115	"specified option"));	"specified option"));
5116	return 1;	return 1;
5117	}	}
5118
5119	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5120	removeKernelPath)) {	removeKernelPath)) {
5121	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5122	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5123	return 1;	return 1;
5124	}	}
5125
5126	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5127	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5128	return 1;	return 1;
5129	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5130	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5131	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5132	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5133	return 1;	return 1;
5134	}	}
5135
5136	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5137	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5138	"not be used together"));	"not be used together"));
5139	return 1;	return 1;
5140	}	}
5141
5142	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5143	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5144		"may not be used together\n"));
5145		return 1;
5146		} else if (defaultKernel && removeKernelPath &&
5147		!strcmp(defaultKernel, removeKernelPath)) {
5148		fprintf(stderr,
5149		_("grubby: cannot make removed kernel the default\n"));
5150		return 1;
5151		} else if (defaultKernel && newKernelPath &&
5152		!strcmp(defaultKernel, newKernelPath)) {
5153		makeDefault = 1;
5154		defaultKernel = NULL;
5155		} else if (defaultKernel && (defaultIndex >= 0)) {
5156		fprintf(stderr,
5157		_("grubby: --set-default and --set-default-index "
5158	"may not be used together\n"));	"may not be used together\n"));
5159	return 1;	return 1;
5160	} 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;
	}
5161
5162	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5163	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5164	"is used\n"));	_("grubby: output file must be specified if stdin "
5165	return 1;	"is used\n"));
5166	}	return 1;
5167		}
5168
5169	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5170	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5171	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5172	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5173	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5174	}	return 1;
5175		}
5176
5177	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5178
5179	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5180	if (!bootPrefix) {	if (!bootPrefix) {
5181	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5182	if (!bootPrefix) return 1;	if (!bootPrefix)
5183	} else {	return 1;
5184	/* this shouldn't end with a / */	} else {
5185	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5186	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5187		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5188		}
5189		} else {
5190		bootPrefix = "";
5191	}	}
	} else {
	bootPrefix = "";
	}
5192
5193	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5194	extraInitrdCount > 0) {	fprintf(stderr,
5195	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5196	return 1;	cfi->defaultConfig);
5197	}	return 1;
5198		}
5199
5200	if (bootloaderProbe) {	if (bootloaderProbe) {
5201	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5202	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5203
5204	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5205	if (grub2config) {	if (grub2config) {
5206	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5207	if (!gconfig)	if (!gconfig)
5208	gr2c = 1;	gr2c = 1;
5209	else	else
5210	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5211	}	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(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");
5212
5213	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5214	}	if (!access(grubconfig, F_OK)) {
5215		gconfig = readConfig(grubconfig, &grubConfigType);
5216		if (!gconfig)
5217		grc = 1;
5218		else
5219		grc = checkForGrub(gconfig);
5220		}
5221
5222	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5223	if (!config) return 1;	lconfig =
5224		readConfig(liloConfigType.defaultConfig,
5225		&liloConfigType);
5226		if (!lconfig)
5227		lrc = 1;
5228		else
5229		lrc = checkForLilo(lconfig);
5230		}
5231
5232	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5233	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5234	struct singleEntry * entry;	&eliloConfigType);
5235	char * rootspec;	if (!econfig)
5236		erc = 1;
5237	if (config->defaultImage == -1) return 0;	else
5238	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5239	if (!entry) return 0;	}
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
5240
5241	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5242		lconfig =
5243		readConfig(extlinuxConfigType.defaultConfig,
5244		&extlinuxConfigType);
5245		if (!lconfig)
5246		extrc = 1;
5247		else
5248		extrc = checkForExtLinux(lconfig);
5249		}
5250
5251		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5252		yconfig = readConfig(yabootConfigType.defaultConfig,
5253		&yabootConfigType);
5254		if (!yconfig)
5255		yrc = 1;
5256		else
5257		yrc = checkForYaboot(yconfig);
5258		}
5259
5260		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5261		|| erc == 1)
5262		return 1;
5263
5264		if (lrc == 2)
5265		printf("lilo\n");
5266		if (gr2c == 2)
5267		printf("grub2\n");
5268		if (grc == 2)
5269		printf("grub\n");
5270		if (extrc == 2)
5271		printf("extlinux\n");
5272		if (yrc == 2)
5273		printf("yaboot\n");
5274		if (erc == 2)
5275		printf("elilo\n");
5276
5277	} else if (displayDefaultTitle) {	return 0;
	struct singleLine * line;
	struct singleEntry * entry;
	if (config->defaultImage == -1) return 0;
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
	} else {
	int i;
	size_t len;
	char * start;
	char * tmp;
	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	for (i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (*line->elements[i].item == '\'')
	start = line->elements[i].item + 1;
	else
	start = line->elements[i].item;
	len = strlen(start);
	if (*(start + len - 1) == '\'') {
	tmp = strdup(start);
	*(tmp + len - 1) = '\0';
	printf("%s", tmp);
	free(tmp);
	break;
	} else {
	printf("%s ", start);
	}
	}
	printf("\n");
5278	}	}
	return 0;
5279
5280	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5281	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5282	printf("%i\n", config->defaultImage);	exit(1);
5283		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5284
5285	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5286	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5287	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5288	bootPrefix, flags);
5289	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5290	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5291	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5292	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5293	if (updateInitrd(config, updateKernelPath, bootPrefix,
5294	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5295	}	return 0;
5296	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5297	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5298	extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5299	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5300		if (!entry)
5301		return 0;
5302	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5303	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5304	"Not writing out new config.\n"));
5305	return 1;	line =
5306	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5307		LT_KERNEL_16, entry->lines);
5308		if (!line)
5309		return 0;
5310
5311		rootspec = getRootSpecifier(line->elements[1].item);
5312		printf("%s%s\n", bootPrefix, line->elements[1].item +
5313		((rootspec != NULL) ? strlen(rootspec) : 0));
5314
5315		return 0;
5316
5317		} else if (displayDefaultTitle) {
5318		struct singleLine *line;
5319		struct singleEntry *entry;
5320
5321		if (config->defaultImage == NO_DEFAULT_ENTRY)
5322		return 0;
5323		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5324		cfi->defaultIsSaved)
5325		config->defaultImage = FIRST_ENTRY_INDEX;
5326		entry = findEntryByIndex(config, config->defaultImage);
5327		if (!entry)
5328		return 0;
5329
5330		if (!configureGrub2) {
5331		char *title;
5332		line = getLineByType(LT_TITLE, entry->lines);
5333		if (!line)
5334		return 0;
5335		title = extractTitle(config, line);
5336		if (!title)
5337		return 0;
5338		printf("%s\n", title);
5339		free(title);
5340		} else {
5341		char *title;
5342
5343		dbgPrintf
5344		("This is GRUB2, default title is embeded in menuentry\n");
5345		line = getLineByType(LT_MENUENTRY, entry->lines);
5346		if (!line)
5347		return 0;
5348		title = grub2ExtractTitle(line);
5349		if (title)
5350		printf("%s\n", title);
5351		}
5352		return 0;
5353
5354		} else if (displayDefaultIndex) {
5355		if (config->defaultImage == NO_DEFAULT_ENTRY)
5356		return 0;
5357		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5358		cfi->defaultIsSaved)
5359		config->defaultImage = FIRST_ENTRY_INDEX;
5360		printf("%i\n", config->defaultImage);
5361		return 0;
5362
5363		} else if (kernelInfo)
5364		return displayInfo(config, kernelInfo, bootPrefix);
5365
5366		if (copyDefault) {
5367		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5368		if (!template)
5369		return 1;
5370		}
5371
5372		markRemovedImage(config, removeKernelPath, bootPrefix);
5373		markRemovedImage(config, removeMBKernel, bootPrefix);
5374		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5375		makeDefault, bootPrefix, flags, defaultIndex,
5376		newIndex);
5377		setFallbackImage(config, newKernelPath != NULL);
5378		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5379		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5380		return 1;
5381		if (updateKernelPath && newKernelInitrd) {
5382		if (newMBKernel) {
5383		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5384		bootPrefix, newKernelInitrd,
5385		newKernelTitle))
5386		return 1;
5387		} else {
5388		if (updateInitrd(config, updateKernelPath, bootPrefix,
5389		newKernelInitrd, newKernelTitle))
5390		return 1;
5391		}
5392		}
5393		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5394		newKernelTitle, newKernelArgs, newKernelInitrd,
5395		(const char **)extraInitrds, extraInitrdCount,
5396		newMBKernel, newMBKernelArgs, newDevTreePath,
5397		newIndex))
5398		return 1;
5399
5400		if (numEntries(config) == 0) {
5401		fprintf(stderr,
5402		_("grubby: doing this would leave no kernel entries. "
5403		"Not writing out new config.\n"));
5404		return 1;
5405		}
5406
5407	if (!outputFile)	if (!outputFile)
5408	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5409
5410	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5411	}	}

---

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Legend: Removed from v.1745   changed lines   Added in v.3031