Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1722 by niro, Sat Feb 18 00:53:14 2012 UTC	revision 3026 by niro, Tue Jun 27 14:43:04 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51		int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
55	#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */	#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */
#	Line 54	Line 58
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 109  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140		#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/etc/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
200	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	};	{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
248	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
249	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
250	"/boot/grub/grub.cfg",	};
251	NULL
252	};	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static int i = -1;	{
254	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256	if (i == -1) {	"/boot/grub/grub.cfg",
257	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
258	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
259	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396		}
397
398		int sizeOfSingleLine(struct singleLine *line)
399		{
400		int count = 0;
401
402		for (int i = 0; i < line->numElements; i++) {
403		int indentSize = 0;
404
405		count = count + strlen(line->elements[i].item);
406
407		indentSize = strlen(line->elements[i].indent);
408		if (indentSize > 0)
409		count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415		/* room for trailing terminator */
416		count = count + 1;
417
418		return count;
419		}
420
421		static int isquote(char q)
422		{
423		if (q == '\'' || q == '\"')
424		return 1;
425		return 0;
426		}
427
428		static int iskernel(enum lineType_e type)
429		{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432		}
433
434		static int isinitrd(enum lineType_e type)
435		{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438		}
439
440		char *grub2ExtractTitle(struct singleLine *line)
441		{
442		char *current;
443		char *current_indent;
444		int current_len;
445		int current_indent_len;
446		int i;
447
448		/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452		i = 1;
453		current = line->elements[i].item;
454		current_len = strlen(current);
455
456		/* if second word is quoted, strip the quotes and return single word */
457		if (isquote(*current) && isquote(current[current_len - 1])) {
458		char *tmp;
459
460		tmp = strdup(current + 1);
461		if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482	dbgPrintf("not found\n");	i++;
483	return configFiles[i];	for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496		}
497		return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 0,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785		}
786
787		static enum lineType_e preferredLineType(enum lineType_e type,
788		struct configFileInfo *cfi)
789		{
790		if (isEfi && cfi == &grub2ConfigType) {
791		switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812		}
813
814		static struct keywordTypes *getKeywordByType(enum lineType_e type,
815		struct configFileInfo *cfi)
816		{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822	}	}
823
824	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct keywordTypes *kt = getKeywordByType(type, cfi);	{
826	if (kt)	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	return kt->key;	if (kt)
828	return "unknown";	return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getpathbyspec(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_devname(blkid, device, NULL);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static char * getuuidbydev(char *device) {	static char *getuuidbydev(char *device)
841	if (!blkid)	{
842	blkid_get_cache(&blkid, NULL);	if (!blkid)
843		blkid_get_cache(&blkid, NULL);
844
845	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static enum lineType_e getTypeByKeyword(char * keyword,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	struct keywordTypes * kw;	{
851	for (kw = cfi->keywords; kw->key; kw++) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	if (!strcmp(keyword, kw->key))	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	return kw->type;	return kw->type;
854	}	}
855	return LT_UNKNOWN;	return LT_UNKNOWN;
856	}	}
857
858	static struct singleLine * getLineByType(enum lineType_e type,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct singleLine * line) {	struct singleLine *line)
860	dbgPrintf("getLineByType(%d): ", type);	{
861	for (; line; line = line->next) {	dbgPrintf("getLineByType(%d): ", type);
862	dbgPrintf("%d:%s ", line->type,	for (; line; line = line->next) {
863	line->numElements ? line->elements[0].item : "(empty)");	dbgPrintf("%d:%s ", line->type,
864	if (line->type & type) break;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	dbgPrintf(line ? "\n" : " (failed)\n");	if (line->type & type)
867	return line;	break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isBracketedTitle(struct singleLine * line) {	static int isBracketedTitle(struct singleLine *line)
874	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
875	int len = strlen(line->elements[0].item);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	if (*(line->elements[0].item + len - 1) == ']') {	int len = strlen(line->elements[0].item);
877	/* FIXME: this is a hack... */	if (*(line->elements[0].item + len - 1) == ']') {
878	if (strcmp(line->elements[0].item, "[defaultboot]")) {	/* FIXME: this is a hack... */
879	return 1;	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	}	return 1;
881	}	}
882	}	}
883	return 0;	}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title;	/* bracketed title... let's extract it */
897	title = strdup(line->elements[0].item);	char *title = NULL;
898	title++;	if (line->type == LT_TITLE) {
899	*(title + strlen(title) - 1) = '\0';	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	return title;	if (cfg->cfi->titleBracketed) {
901	}	tmp++;
902		title = strdup(tmp);
903	static int readFile(int fd, char ** bufPtr) {	*(title + strlen(title) - 1) = '\0';
904	int alloced = 0, size = 0, i = 0;	} else {
905	char * buf = NULL;	title = strdup(tmp);
906		}
907	do {	} else if (line->type == LT_MENUENTRY)
908	size += i;	title = strdup(line->elements[1].item);
909	if ((size + 1024) > alloced) {	else
910	alloced += 4096;	return NULL;
911	buf = realloc(buf, alloced + 1);	return title;
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
	buf = realloc(buf, size + 2);
	if (size == 0)
	buf[size++] = '\n';
	else
	if (buf[size - 1] != '\n')
	buf[size++] = '\n';
	buf[size] = '\0';
	*bufPtr = buf;
	return 0;
912	}	}
913
914	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
915	line->indent = NULL;	{
916	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
917	line->numElements = 0;	char *buf = NULL;
	line->next = NULL;
	}
	struct singleLine * lineDup(struct singleLine * line) {
	int i;
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
918
919	return newLine;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineFree(struct singleLine * line) {	if (i < 0) {
928	int i;	fprintf(stderr, _("error reading input: %s\n"),
929		strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
935		if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
942	free(line->elements[i].item);
943	free(line->elements[i].indent);	return 0;
944	}	}
945
946	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
947	lineInit(line);	{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	int i;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	if (fprintf(out, "%s", line->indent) == -1) return -1;	newLine->indent = strdup(line->indent);
960		newLine->next = NULL;
961		newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	for (i = 0; i < line->numElements; i++) {	for (int i = 0; i < newLine->numElements; i++) {
967	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fputc('"', out) == EOF) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	return newLine;
972	if (i < line->numElements - 1)	}
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191	line->elements[i].indent = strdup("");	}
1192	p = line->elements[i].item;	line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (!sawEntry && line->numElements) {	}
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntryStart(line, cfi)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1325
1326	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	entry->multiboot = 0;	sawEntry = 1;
1328	entry->lines = NULL;	if (!entry) {
1329	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	if (line->type == LT_SET_VARIABLE) {	entry->next = malloc(sizeof(*entry));
1333	int i;	entry = entry->next;
1334	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	}
	dbgPrintf("%s", line->indent);
	for (i = 0; i < line->numElements; i++)
	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1335
1336	for (i = 1; i < line->numElements; i++) {	entry->skip = 0;
1337	strcat(buf, line->elements[i].item);	entry->multiboot = 0;
1338	free(line->elements[i].item);	entry->lines = NULL;
1339		entry->next = NULL;
1340		}
1341
1342	if ((i + 1) != line->numElements) {	if (line->type == LT_SET_VARIABLE) {
1343	strcat(buf, line->elements[i].indent);	dbgPrintf("found 'set' command (%d elements): ",
1344	free(line->elements[i].indent);	line->numElements);
1345	}	dbgPrintf("%s", line->indent);
1346	}	for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	line->elements[1].indent =	line->elements[i].indent);
1349	line->elements[line->numElements - 1].indent;	dbgPrintf("\n");
1350	line->elements[1].item = buf;	struct keywordTypes *kwType =
1351	line->numElements = 2;	getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {	&& !strcmp(line->elements[1].item, kwType->key)
1354	/* Strip off any " which may be present; they'll be put back	&& !is_special_grub2_variable(
1355	on write. This is one of the few (the only?) places that grubby	line->elements[2].item)) {
1356	canonicalizes the output */	dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	if (line->numElements >= 2) {	defaultLine = line;
1359	int last, len;	}
1360		} else if (iskernel(line->type)) {
1361	if (*line->elements[1].item == '"')	/* if by some freak chance this is multiboot and the
1362	memmove(line->elements[1].item, line->elements[1].item + 1,	* "module" lines came earlier in the template, make
1363	strlen(line->elements[1].item + 1) + 1);	* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365	last = line->numElements - 1;	if (entry && entry->multiboot)
1366	len = strlen(line->elements[last].item) - 1;	line->type = LT_HYPER;
	if (line->elements[last].item[len] == '"')
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1367
1368	if (sawEntry) {	} else if (line->type == LT_MBMODULE) {
1369	if (!entry->lines)	/* go back and fix the LT_KERNEL line to indicate
1370	entry->lines = line;	* LT_HYPER instead, now that we know this is a
1371	else	* multiboot entry.  This only applies to grub, but
1372	last->next = line;	* that's the only place we should find LT_MBMODULE
1373	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	* lines anyway.
1374		*/
1375	/* we could have seen this outside of an entry... if so, we	for (struct singleLine * l = entry->lines; l;
1376	* ignore it like any other line we don't grok */	l = l->next) {
1377	if (line->type == LT_ENTRY_END && sawEntry)	if (l->type == LT_HYPER)
1378	sawEntry = 0;	break;
1379	} else {	else if (iskernel(l->type)) {
1380	if (!cfg->theLines)	l->type = LT_HYPER;
1381	cfg->theLines = line;	break;
1382	else	}
1383	last->next = line;	}
1384	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	entry->multiboot = 1;
	}
1385
1386	last = line;	} else if (line->type == LT_HYPER) {
1387	}	entry->multiboot = 1;
1388
1389	free(incoming);	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	for (int i = 1; i < line->numElements; i++) {
1409	if (defaultLine) {	strcat(buf, line->elements[i].item);
1410	if (cfi->defaultIsVariable) {	free(line->elements[i].item);
1411	char *value = defaultLine->elements[2].item;
1412	while (*value && (*value == '"' || *value == '\'' ||	if ((i + 1) != line->numElements) {
1413	*value == ' ' || *value == '\t'))	strcat(buf, line->elements[i].indent);
1414	value++;	free(line->elements[i].indent);
1415	cfg->defaultImage = strtol(value, &end, 10);	}
1416	while (*end && (*end == '"' || *end == '\'' ||	}
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1417
1418	if (entry){	line->elements[1].indent =
1419	cfg->defaultImage = i;	line->elements[line->numElements - 1].indent;
1420	}else{	line->elements[1].item = buf;
1421	cfg->defaultImage = -1;	line->numElements = 2;
1422	}	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	}	/* let --remove-kernel="TITLE=what" work */
1424	} else {	len = 0;
1425	cfg->defaultImage = 0;	char *extras;
1426	}	char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	return cfg;	/* allocate mem for extra flags. */
1438	}	extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	static void writeDefault(FILE * out, char * indent,	len = strlen(title);
1456	char * separator, struct grubConfig * cfg) {	if (title[len - 1] == quote_char) {
1457	struct singleEntry * entry;	strncat(buf, title, len - 1);
1458	struct singleLine * line;	break;
1459	int i;	} else {
1460		strcat(buf, title);
1461	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	strcat(buf, line->elements[i].indent);
1462		}
1463	if (cfg->defaultImage == DEFAULT_SAVED)	}
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1464
1465	entry = cfg->entries;	/* get extras */
1466	while (entry && entry->skip) entry = entry->next;	int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	i = 0;	if (!strcmp
1476	while (entry && i < image) {	(line->elements[i].item, "menuentry"))
1477	entry = entry->next;	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	while (entry && entry->skip) entry = entry->next;	len = strlen(line->elements[i].item);
	i++;
	}
1488
1489	if (!entry) return;	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	line = getLineByType(LT_TITLE, entry->lines);	/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (line && line->numElements >= 2)	if (isquote(*line->elements[1].item))
1511	fprintf(out, "%sdefault%s%s\n", indent, separator,	memmove(line->elements[1].item,
1512	line->elements[1].item);	line->elements[1].item + 1,
1513	else if (line && (line->numElements == 1) &&	strlen(line->elements[1].item +
1514	cfg->cfi->titleBracketed) {	1) + 1);
1515	fprintf(out, "%sdefault%s%s\n", indent, separator,
1516	extractTitle(line));	last = line->numElements - 1;
1517	}	len = strlen(line->elements[last].item) - 1;
1518	}	if (isquote(line->elements[last].item[len]))
1519	}	line->elements[last].item[len] = '\0';
1520	}	}
1521		}
1522
1523	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	FILE * out;	defaultLine = line;
1526	struct singleLine * line;	}
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1527
1528	line = cfg->theLines;	/* If we find a generic config option which should live at the
1529	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	top of the file, move it there. Old versions of grubby were
1530	while (line) {	probably responsible for putting new images in the wrong
1531	if (line->type == LT_SET_VARIABLE && defaultKw &&	place in front of it anyway. */
1532	line->numElements == 3 &&	if (sawEntry && line->type == LT_GENERIC) {
1533	!strcmp(line->elements[1].item, defaultKw->key)) {	struct singleLine **l = &cfg->theLines;
1534	writeDefault(out, line->indent, line->elements[0].indent, cfg);	struct singleLine **last_nonws = &cfg->theLines;
1535	needs &= ~MAIN_DEFAULT;	while (*l) {
1536	} else if (line->type == LT_DEFAULT) {	if ((*l)->type != LT_WHITESPACE)
1537	writeDefault(out, line->indent, line->elements[0].indent, cfg);	last_nonws = &((*l)->next);
1538	needs &= ~MAIN_DEFAULT;	l = &((*l)->next);
1539	} else if (line->type == LT_FALLBACK) {	}
1540	if (cfg->fallbackImage > -1)	line->next = *last_nonws;
1541	fprintf(out, "%s%s%s%d\n", line->indent,	*last_nonws = line;
1542	line->elements[0].item, line->elements[0].indent,	movedLine = 1;
1543	cfg->fallbackImage);	continue; /* without setting 'last' */
1544	} else {	}
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1545
1546	line = line->next;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1558	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1559	needs &= ~MAIN_DEFAULT;	entry->lines = line;
1560	}	else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	i = 0;	/* we could have seen this outside of an entry... if
1566	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1567	if (entry->skip) continue;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	line = entry->lines;	last = line;
	while (line) {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
1580	}	}
	}
1581
1582	if (tmpOutName) {	free(incoming);
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
	}
	}
1583
1584	return 0;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	}	if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673	static int numEntries(struct grubConfig *cfg) {	if (entry) {
1674	int i = 0;	cfg->defaultImage = i;
1675	struct singleEntry * entry;	} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677	entry = cfg->entries;	}
1678	while (entry) {	}
1679	if (!entry->skip)	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680	i++;	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681	entry = entry->next;	if (defTitle) {
1682	}	int index = 0;
1683	return i;	if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697	}	}
1698
1699	static char *findDiskForRoot()	static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701	{	{
1702	int fd;	struct singleEntry *entry;
1703	char buf[65536];	struct singleLine *line;
1704	char *devname;	int i;
1705	char *chptr;
1706	int rc;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	entry = cfg->entries;
1752	fprintf(stderr, "grubby: failed to open %s: %s\n",	while (entry && entry->skip)
1753	_PATH_MOUNTED, strerror(errno));	entry = entry->next;
1754	return NULL;
1755	}	i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759	rc = read(fd, buf, sizeof(buf) - 1);	while (entry && entry->skip)
1760	if (rc <= 0) {	entry = entry->next;
1761	fprintf(stderr, "grubby: failed to read %s: %s\n",	i++;
1762	_PATH_MOUNTED, strerror(errno));	}
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/*
	* Move back 2, which is the first space after the device name, set
	* it to \0 so strdup will just get the devicename.
	*/
	chptr -= 2;
	*chptr = '\0';
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1763
1764	return NULL;	if (!entry)
1765	}	return;
1766
1767	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	line = getLineByType(LT_TITLE, entry->lines);
	int skipRemoved, int flags) {
	struct singleLine * line;
	char * fullName;
	int i;
	char * dev;
	char * rootspec;
	char * rootdev;
	if (skipRemoved && entry->skip) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line || line->numElements < 2) return 0;
	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;
	fullName = alloca(strlen(bootPrefix) +
	strlen(line->elements[1].item) + 1);
	rootspec = getRootSpecifier(line->elements[1].item);
	sprintf(fullName, "%s%s", bootPrefix,
	line->elements[1].item + (rootspec ? strlen(rootspec) : 0));
	if (access(fullName, R_OK)) return 0;
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
1768
1769	if (line && line->numElements >= 2) {	if (line && line->numElements >= 2)
1770	dev = line->elements[1].item;	fprintf(out, "%sdefault%s%s\n", indent,
1771	} else {	separator, line->elements[1].item);
1772	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	else if (line && (line->numElements == 1)
1773	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	&& cfg->cfi->titleBracketed) {
1774	*/	char *title = extractTitle(cfg, line);
1775	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777	/* failed to find one */	separator, title);
1778	if (!line) return 0;	free(title);
1779		}
1780	for (i = 1; i < line->numElements; i++)	}
1781	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	}
	if (i < line->numElements)
	dev = line->elements[i].item + 5;
	else {
	/* it failed too...  can't find root= */
	return 0;
	}
1782	}	}
1783	}	}
	dev = getpathbyspec(dev);
	if (!dev)
	return 0;
	rootdev = findDiskForRoot();
	if (!rootdev)
	return 0;
	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
	free(rootdev);
	return 0;
	}
1784
1785	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	free(rootdev);	const char *prefix)
1787	return 0;	{
1788	}	FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
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	free(rootdev);	outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828	return 1;	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	/* returns the first match on or after the one pointed to by index (if index	if (!stat(outName, &sb)) {
1838	is not NULL) which is not marked as skip */	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839	struct singleEntry * findEntryByPath(struct grubConfig * config,	fprintf(stderr,
1840	const char * kernel, const char * prefix,	_
1841	int * index) {	("grubby: error setting perms on %s: %s\n"),
1842	struct singleEntry * entry = NULL;	tmpOutName, strerror(errno));
1843	struct singleLine * line;	fclose(out);
1844	int i;	unlink(tmpOutName);
1845	char * chptr;	return 1;
1846	char * rootspec = NULL;	}
1847	enum lineType_e checkType = LT_KERNEL;	}
1848		}
1849
1850	if (isdigit(*kernel)) {	line = cfg->theLines;
1851	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	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	i = 0;	line = line->next;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
1882	}	}
1883
1884	if (*chptr) {	if (needs & MAIN_DEFAULT) {
1885	/* can't parse it, bail */	writeDefault(out, cfg->primaryIndent, "=", cfg);
1886	return NULL;	needs &= ~MAIN_DEFAULT;
1887	}	}
1888
	indexVars[i + 1] = -1;
1889	i = 0;	i = 0;
1890	if (index) {	while ((entry = findEntryByIndex(cfg, i++))) {
1891	while (i < *index) i++;	if (entry->skip)
1892	if (indexVars[i] == -1) return NULL;	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	entry = findEntryByIndex(config, indexVars[i]);	if (tmpOutName) {
1909	if (!entry) return NULL;	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	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	return 0;
1919	if (!line) return NULL;	}
1920
1921	if (index) *index = indexVars[i];	static int numEntries(struct grubConfig *cfg)
1922	return entry;	{
1923	}	int i = 0;
1924		struct singleEntry *entry;
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
	} else {
	entry = findEntryByIndex(config, config->defaultImage);
	if (entry && entry->skip)
	entry = NULL;
	else if (index)
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
1925
1926	while ((entry = findEntryByIndex(config, i))) {	entry = cfg->entries;
1927	if (!entry->skip) break;	while (entry) {
1928	i++;	if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931	}	}
1932		return i;
1933		}
1934
1935	if (entry && index)	static char *findDiskForRoot()
1936	*index = i;	{
1937	} else {	int fd;
1938	if (index)	char buf[65536];
1939	i = *index;	char *devname;
1940	else	char *chptr;
1941	i = 0;	int rc;
1942
1943	if (!strncmp(kernel, "TITLE=", 6)) {	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944	prefix = "";	fprintf(stderr, "grubby: failed to open %s: %s\n",
1945	checkType = LT_TITLE;	_PATH_MOUNTED, strerror(errno));
1946	kernel += 6;	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	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *foundanswer = NULL;
	if (entry->skip) continue;
1961
1962	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	while (chptr && chptr != buf + rc) {
1963		devname = chptr;
1964
1965	/* check all the lines matching checkType */	/*
1966	for (line = entry->lines; line; line = line->next) {	* The first column of a mtab entry is the device, but if the
1967	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	* entry is a special device it won't start with /, so move
1968	LT_KERNEL|LT_MBMODULE|LT_HYPER :	* on to the next line.
1969	checkType, line);	*/
1970	if (!line) break;  /* not found in this entry */	if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977	if (line && line->numElements >= 2) {	/* Seek to the next space */
1978	rootspec = getRootSpecifier(line->elements[1].item);	chptr = strchr(chptr, ' ');
1979	if (!strcmp(line->elements[1].item +	if (!chptr) {
1980	((rootspec != NULL) ? strlen(rootspec) : 0),	fprintf(stderr, "grubby: error parsing %s: %s\n",
1981	kernel + strlen(prefix)))	_PATH_MOUNTED, strerror(errno));
1982	break;	return NULL;
1983		}
1984
1985		/*
1986		* The second column of a mtab entry is the mount point, we
1987		* are looking for '/' obviously.
1988		*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992	}	}
	}
1993
1994	/* make sure this entry has a kernel identifier; this skips	/* Next line */
1995	* non-Linux boot entries (could find netbsd etc, though, which is	chptr = strchr(chptr, '\n');
1996	* unfortunate)	if (chptr)
1997	*/	chptr++;
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
1998	}	}
1999
2000	if (index) *index = i;	/* Return the last / entry found */
2001	}	if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007	return entry;	return NULL;
2008	}	}
2009
2010	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	void printEntry(struct singleEntry *entry, FILE * f)
2011	struct singleEntry * entry;	{
2012		int i;
2013		struct singleLine *line;
2014
2015		for (line = entry->lines; line; line = line->next) {
2016		log_message(f, "DBG: %s", line->indent);
2017		for (i = 0; i < line->numElements; i++) {
2018		/* Need to handle this, because we strip the quotes from
2019		* 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	entry = cfg->entries;	continue;
2030	while (index && entry) {	}
	entry = entry->next;
	index--;
	}
2031
2032	return entry;	log_message(f, "%s%s",
2033		line->elements[i].item,
2034		line->elements[i].indent);
2035		}
2036		log_message(f, "\n");
2037		}
2038	}	}
2039
2040	/* Find a good template to use for the new kernel. An entry is	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041	* good if the kernel and mkinitrd exist (even if the entry	...)
2042	* is going to be removed). Try and use the default entry, but	{
2043	* if that doesn't work just take the first. If we can't find one,	static int once;
2044	* bail. */	va_list argp, argq;
	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,
	int * indexPtr, int skipRemoved, int flags) {
	struct singleEntry * entry, * entry2;
	int index;
	if (cfg->defaultImage > -1) {
	entry = findEntryByIndex(cfg, cfg->defaultImage);
	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
	if (indexPtr) *indexPtr = cfg->defaultImage;
	return entry;
	}
	}
2045
2046	index = 0;	va_start(argp, fmt);
	while ((entry = findEntryByIndex(cfg, index))) {
	if (suitableImage(entry, prefix, skipRemoved, flags)) {
	int j;
	for (j = 0; j < index; j++) {
	entry2 = findEntryByIndex(cfg, j);
	if (entry2->skip) index--;
	}
	if (indexPtr) *indexPtr = index;
2047
2048	return entry;	va_copy(argq, argp);
2049		if (!once) {
2050		log_time(NULL);
2051		log_message(NULL, "command line: %s\n", saved_command_line);
2052	}	}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057	index++;	printEntry(entry, NULL);
2058	}	va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071	return NULL;	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	char * findBootPrefix(void) {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	struct stat sb, sb2;
2082
2083	stat("/", &sb);	static int endswith(const char *s, char c)
2084	#ifdef __ia64__	{
2085	stat("/boot/efi/EFI/redhat/", &sb2);	int slen;
	#else
	stat("/boot", &sb2);
	#endif
2086
2087	if (sb.st_dev == sb2.st_dev)	if (!s || !s[0])
2088	return strdup("");	return 0;
2089		slen = strlen(s) - 1;
2090
2091	#ifdef __ia64__	return s[slen] == c;
	return strdup("/boot/efi/EFI/redhat/");
	#else
	return strdup("/boot");
	#endif
2092	}	}
2093
2094	void markRemovedImage(struct grubConfig * cfg, const char * image,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	const char * prefix) {	int skipRemoved, int flags)
2096	struct singleEntry * entry;	{
2097		struct singleLine *line;
2098	if (!image) return;	char *fullName;
2099		int i;
2100	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	char *dev;
2101	entry->skip = 1;	char *rootspec;
2102	}	char *rootdev;
2103
2104	void setDefaultImage(struct grubConfig * config, int hasNew,	if (skipRemoved && entry->skip) {
2105	const char * defaultKernelPath, int newIsDefault,	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	const char * prefix, int flags) {	return 0;
2107	struct singleEntry * entry, * entry2, * newDefault;	}
2108	int i, j;
2109		line =
2110	if (newIsDefault) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111	config->defaultImage = 0;	entry->lines);
2112	return;	if (!line) {
2113	} else if (defaultKernelPath) {	notSuitablePrintf(entry, 0, "no line found\n");
2114	i = 0;	return 0;
2115	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	}
2116	config->defaultImage = i;	if (line->numElements < 2) {
2117	} else {	notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118	config->defaultImage = -1;	line->numElements);
2119	return;	return 0;
2120	}	}
	}
2121
2122	/* defaultImage now points to what we'd like to use, but before any order	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	changes */	notSuitablePrintf(entry, 1, "\n");
2124	if (config->defaultImage == DEFAULT_SAVED)	return 1;
2125	/* 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;
2126
2127	if (entry && !entry->skip) {	fullName = alloca(strlen(bootPrefix) +
2128	/* we can preserve the default */	strlen(line->elements[1].item) + 1);
2129	if (hasNew)	rootspec = getRootSpecifier(line->elements[1].item);
2130	config->defaultImage++;	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132	/* count the number of entries erased before this one */	beginswith(line->elements[1].item + rootspec_offset, '/');
2133	for (j = 0; j < config->defaultImage; j++) {	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134	entry2 = findEntryByIndex(config, j);	line->elements[1].item + rootspec_offset);
2135	if (entry2->skip) config->defaultImage--;	if (access(fullName, R_OK)) {
2136	}	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137	} else if (hasNew) {	return 0;
2138	config->defaultImage = 0;	}
2139	} else {	for (i = 2; i < line->numElements; i++)
2140	/* Either we just erased the default (or the default line was bad	if (!strncasecmp(line->elements[i].item, "root=", 5))
2141	* to begin with) and didn't put a new one in. We'll use the first	break;
2142	* valid image. */	if (i < line->numElements) {
2143	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,	dev = line->elements[i].item + 5;
2144	flags);	} else {
2145	if (!newDefault)	/* look for a lilo style LT_ROOT line */
2146	config->defaultImage = -1;	line = getLineByType(LT_ROOT, entry->lines);
	}
	}
2147
2148	void setFallbackImage(struct grubConfig * config, int hasNew) {	if (line && line->numElements >= 2) {
2149	struct singleEntry * entry, * entry2;	dev = line->elements[1].item;
2150	int j;	} else {
2151		/* didn't succeed in finding a LT_ROOT, let's try
2152	if (config->fallbackImage == -1) return;	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154	entry = findEntryByIndex(config, config->fallbackImage);	*/
2155	if (!entry || entry->skip) {	line =
2156	config->fallbackImage = -1;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157	return;	entry->lines);
2158	}
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165	if (hasNew)	for (i = 1; i < line->numElements; i++)
2166	config->fallbackImage++;	if (!strncasecmp
2167		(line->elements[i].item, "root=", 5))
2168	/* count the number of entries erased before this one */	break;
2169	for (j = 0; j < config->fallbackImage; j++) {	if (i < line->numElements)
2170	entry2 = findEntryByIndex(config, j);	dev = line->elements[i].item + 5;
2171	if (entry2->skip) config->fallbackImage--;	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
2180		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();
2189		if (!rootdev) {
2190		notSuitablePrintf(entry, 0, "can't find root device\n");
2191		return 0;
2192		}
2193
2194		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195		notSuitablePrintf(entry, 0,
2196		"uuid missing: rootdev %s, dev %s\n",
2197		getuuidbydev(rootdev), getuuidbydev(dev));
2198		free(rootdev);
2199		return 0;
2200		}
2201
2202		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203		notSuitablePrintf(entry, 0,
2204		"uuid mismatch: rootdev %s, dev %s\n",
2205		getuuidbydev(rootdev), getuuidbydev(dev));
2206		free(rootdev);
2207		return 0;
2208		}
2209
2210		free(rootdev);
2211		notSuitablePrintf(entry, 1, "\n");
2212
2213		return 1;
2214	}	}
2215
2216	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* returns the first match on or after the one pointed to by index (if index
2217	struct singleLine * line;	is not NULL) which is not marked as skip */
2218	char * root = NULL;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	int i;	const char *kernel, const char *prefix,
2220		int *index)
2221	printf("index=%d\n", index);	{
2222		struct singleEntry *entry = NULL;
2223	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	struct singleLine *line;
2224	if (!line) {	int i;
2225	printf("non linux entry\n");	char *chptr;
2226	return;	char *rootspec = NULL;
2227	}	enum lineType_e checkType = LT_KERNEL;
2228
2229		if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	printf("kernel=%s\n", line->elements[1].item);	if (*chptr) {
2241		/* can't parse it, bail */
2242		return NULL;
2243		}
2244
2245	if (line->numElements >= 3) {	indexVars[i + 1] = -1;
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2246
2247	i++;	i = 0;
2248	}	if (index) {
2249	printf("\"\n");	while (i < *index) {
2250	} else {	i++;
2251	line = getLineByType(LT_KERNELARGS, entry->lines);	if (indexVars[i] == -1)
2252	if (line) {	return NULL;
2253	char * s;	}
2254		}
2255
2256	printf("args=\"");	entry = findEntryByIndex(config, indexVars[i]);
2257	i = 1;	if (!entry)
2258	while (i < line->numElements) {	return NULL;
2259	if (!strncmp(line->elements[i].item, "root=", 5)) {
2260	root = line->elements[i].item + 5;	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 {	} else {
2275	s = line->elements[i].item;	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	printf("%s%s", s, line->elements[i].indent);	if (entry && index)
2294		*index = i;
2295		} else {
2296		if (index)
2297		i = *index;
2298		else
2299		i = 0;
2300
2301		if (!strncmp(kernel, "TITLE=", 6)) {
2302		prefix = "";
2303		checkType = LT_TITLE | LT_MENUENTRY;
2304		kernel += 6;
2305	}	}
2306
2307	i++;	for (entry = findEntryByIndex(config, i); entry;
2308	}	entry = entry->next, i++) {
2309		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	s = line->elements[i - 1].indent;	/* make sure this entry has a kernel identifier; this skips
2347	printf("\"\n");	* non-Linux boot entries (could find netbsd etc, though, which is
2348		* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357		if (index)
2358		*index = i;
2359	}	}
	}
2360
2361	if (!root) {	return entry;
2362	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2363
2364	if (root) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	char * s = alloca(strlen(root) + 1);	int *index)
2366		{
2367	strcpy(s, root);	struct singleEntry *entry;
2368	if (s[strlen(s) - 1] == '"')	struct singleLine *line;
2369	s[strlen(s) - 1] = '\0';	int i;
2370	/* make sure the root doesn't have a trailing " */	char *newtitle;
2371	printf("root=%s\n", s);
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;
2385		}
2386
2387	line = getLineByType(LT_INITRD, entry->lines);	if (!entry)
2388		return NULL;
2389
2390	if (line && line->numElements >= 2) {	if (index)
2391	printf("initrd=%s", prefix);	*index = i;
2392	for (i = 1; i < line->numElements; i++)	return entry;
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2393	}	}
2394
2395	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	FILE * in;	{
2397	char buf[1024];	struct singleEntry *entry;
	char * chptr;
	char * start;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
	fclose(in);
2398
2399	return 0;	entry = cfg->entries;
2400	}	while (index && entry) {
2401		entry = entry->next;
2402		index--;
2403		}
2404
2405	void dumpSysconfigGrub(void) {	return entry;
	char * boot;
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
2406	}	}
2407
2408	int displayInfo(struct grubConfig * config, char * kernel,	/* Find a good template to use for the new kernel. An entry is
2409	const char * prefix) {	* good if the kernel and mkinitrd exist (even if the entry
2410	int i = 0;	* is going to be removed). Try and use the default entry, but
2411	struct singleEntry * entry;	* if that doesn't work just take the first. If we can't find one,
2412	struct singleLine * line;	* bail. */
2413		struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	entry = findEntryByPath(config, kernel, prefix, &i);	int *indexPtr, int skipRemoved, int flags)
2415	if (!entry) {	{
2416	fprintf(stderr, _("grubby: kernel not found\n"));	struct singleEntry *entry, *entry2;
2417	return 1;	int index;
	}
2418
2419	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (cfg->cfi->defaultIsSaved) {
2420	be a better way */	if (cfg->cfi->getEnv) {
2421	if (config->cfi == &grubConfigType) {	char *defTitle =
2422	dumpSysconfigGrub();	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423	} else {	if (defTitle) {
2424	line = getLineByType(LT_BOOT, config->theLines);	int index = 0;
2425	if (line && line->numElements >= 1) {	if (isnumber(defTitle)) {
2426	printf("boot=%s\n", line->elements[1].item);	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	line = getLineByType(LT_LBA, config->theLines);	index = 0;
2453	if (line) printf("lba\n");	while ((entry = findEntryByIndex(cfg, index))) {
2454	}	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455		int j, unmodifiedIndex;
2456	displayEntry(entry, prefix, i);
2457		unmodifiedIndex = index;
2458	i++;
2459	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	for (j = 0; j < unmodifiedIndex; j++) {
2460	displayEntry(entry, prefix, i);	entry2 = findEntryByIndex(cfg, j);
2461	i++;	if (entry2->skip)
2462	}	index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return 0;	return entry;
2468	}	}
2469
2470	struct singleLine * addLineTmpl(struct singleEntry * entry,	index++;
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi)
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[1]
	*/
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
2471	}	}
	}
2472
2473	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	fprintf(stderr,
2474	newLine->elements[0].item : "");	_("grubby fatal error: unable to find a suitable template\n"));
2475
2476	if (!entry->lines) {	return NULL;
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
2477	}	}
2478
2479	/* val may be NULL */	char *findBootPrefix(void)
2480	struct singleLine *  addLine(struct singleEntry * entry,	{
2481	struct configFileInfo * cfi,	struct stat sb, sb2;
	enum lineType_e type, char * defaultIndent,
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
	}
	}
2482
2483	/* The last non-empty line gives us the indention to us and the line	stat("/", &sb);
2484	to insert after. Note that comments are considered empty lines, which	#ifdef __ia64__
2485	may not be ideal? If there are no lines or we are looking at the	stat("/boot/efi/EFI/redhat/", &sb2);
2486	first line, we use defaultIndent (the first line is normally indented	#else
2487	differently from the rest) */	stat("/boot", &sb2);
2488	for (line = entry->lines, prev = NULL; line; line = line->next) {	#endif
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
2489
2490	struct singleLine *menuEntry;	if (sb.st_dev == sb2.st_dev)
2491	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	return strdup("");
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
2492
2493	return addLineTmpl(entry, &tmpl, prev, val, cfi);	#ifdef __ia64__
2494		return strdup("/boot/efi/EFI/redhat/");
2495		#else
2496		return strdup("/boot");
2497		#endif
2498	}	}
2499
2500	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	struct singleLine * prev;	const char *prefix)
2502	int i;	{
2503		struct singleEntry *entry;
2504
2505	for (i = 0; i < line->numElements; i++) {	if (!image)
2506	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2507
2508	if (line == entry->lines) {	/* check and see if we're removing the default image */
2509	entry->lines = line->next;	if (isdigit(*image)) {
2510	} else {	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	prev = entry->lines;	if (entry)
2512	while (prev->next != line) prev = prev->next;	entry->skip = 1;
2513	prev->next = line->next;	return;
2514	}	}
2515
2516	free(line);	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517		entry->skip = 1;
2518	}	}
2519
2520	static int isquote(char q)	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521		const char *defaultKernelPath, int newBootEntryIsDefault,
2522		const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524	{	{
2525	if (q == '\'' || q == '\"')	struct singleEntry *bootEntry, *newDefault;
2526	return 1;	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	return 0;
	}
2527
2528	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	/* handle the two cases where the user explictly picks the default
2529	{	* boot entry index as it would exist post-modification */
	struct singleLine newLine = {
	.indent = tmplLine->indent,
	.type = tmplLine->type,
	.next = tmplLine->next,
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
2530
2531	line->elements = realloc(line->elements, (line->numElements + 1) *	/* Case 1: user chose to make the latest boot entry the default */
2532	sizeof(*line->elements));	if (newBootEntryIsDefault) {
2533	memmove(&line->elements[insertHere+1],	config->defaultImage = newBootEntryIndex;
2534	&line->elements[insertHere],	return;
2535	(line->numElements - insertHere) *	}
2536	sizeof(*line->elements));
2537	line->elements[insertHere].item = strdup(item);	/* Case 2: user picked an arbitrary index as the default boot entry */
2538		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2539	kw = getKeywordByType(line->type, cfi);	&& config->cfi->defaultIsIndex) {
2540		indexToVerify = newDefaultBootEntryIndex;
2541	if (line->numElements == 0) {
2542	indent[0] = '\0';	/* user chose to make latest boot entry the default */
2543	} else if (insertHere == 0) {	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2544	indent[0] = kw->nextChar;	config->defaultImage = newBootEntryIndex;
2545	} else if (kw->separatorChar != '\0') {	return;
2546	indent[0] = kw->separatorChar;	}
	} else {
	indent[0] = ' ';
	}
2547
2548	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	/* the user picks the default index based on the
2549	/* move the end-of-line forward */	* order of the bootloader configuration after
2550	line->elements[insertHere].indent =	* modification; ensure we are checking for the
2551	line->elements[insertHere-1].indent;	* existence of the correct entry */
2552	line->elements[insertHere-1].indent = strdup(indent);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2553	} else {	if (!config->isModified)
2554	line->elements[insertHere].indent = strdup(indent);	indexToVerify--;
2555	}	}
2556
2557	line->numElements++;	/* verify the user selected index will exist */
2558		if (findEntryByIndex(config, indexToVerify)) {
2559		config->defaultImage = newDefaultBootEntryIndex;
2560		} else {
2561		config->defaultImage = NO_DEFAULT_ENTRY;
2562		}
2563
2564	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	return;
2565	line->elements[0].item,	}
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
	}
2566
2567	static void removeElement(struct singleLine * line, int removeHere) {	/* handle cases where the index value may shift */
	int i;
2568
2569	/* sanity check */	/* check validity of existing default or first-entry-found
2570	if (removeHere >= line->numElements) return;	selection */
2571		if (defaultKernelPath) {
2572		/* we must initialize this */
2573		firstKernelEntryIndex = 0;
2574		/* user requested first-entry-found */
2575		if (!findEntryByPath(config, defaultKernelPath,
2576		prefix, &firstKernelEntryIndex)) {
2577		/* don't change default if can't find match */
2578		config->defaultImage = NO_DEFAULT_ENTRY;
2579		return;
2580		}
2581
2582	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	config->defaultImage = firstKernelEntryIndex;
	removeHere, line->elements[removeHere].item);
2583
2584	free(line->elements[removeHere].item);	/* this is where we start looking for decrement later */
2585		currentLookupIndex = config->defaultImage;
2586
2587	if (removeHere > 1) {	if (isAddingBootEntry && !config->isModified &&
2588	/* previous argument gets this argument's post-indentation */	(newBootEntryIndex < config->defaultImage)) {
2589	free(line->elements[removeHere-1].indent);	/* increment because new entry added before default */
2590	line->elements[removeHere-1].indent =	config->defaultImage++;
2591	line->elements[removeHere].indent;	}
2592	} else {	} else {
2593	free(line->elements[removeHere].indent);	/* use pre-existing default entry */
2594	}	currentLookupIndex = config->defaultImage;
2595
2596	/* now collapse the array, but don't bother to realloc smaller */	if (isAddingBootEntry
2597	for (i = removeHere; i < line->numElements - 1; i++)	&& (newBootEntryIndex <= config->defaultImage)) {
2598	line->elements[i] = line->elements[i + 1];	config->defaultImage++;
	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;
	}
	}
2599
2600	if (!removeArgs) {	if (config->isModified) {
2601	oldArgs = malloc(sizeof(*oldArgs));	currentLookupIndex++;
2602	*oldArgs = NULL;	}
2603	} else {	}
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2604	}	}
	}
2605
2606	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	/* sanity check - is this entry index valid? */
2607	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	bootEntry = findEntryByIndex(config, currentLookupIndex);
2608
2609	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2610	&& !multibootArgs);	/* entry is to be skipped or is invalid */
2611		if (isAddingBootEntry) {
2612		config->defaultImage = newBootEntryIndex;
2613		return;
2614		}
2615		newDefault =
2616		findTemplate(config, prefix, &config->defaultImage, 1,
2617		flags);
2618		if (!newDefault) {
2619		config->defaultImage = NO_DEFAULT_ENTRY;
2620		}
2621
2622	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	return;
2623		}
2624
2625	if (multibootArgs && !entry->multiboot)	currentLookupIndex--;
	continue;
2626
2627	/* Determine where to put the args.  If this config supports	/* decrement index by the total number of entries deleted */
	* LT_KERNELARGS, use that.  Otherwise use
	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
	*/
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
	}
2628
2629	/* handle the elilo case which does:	for (indexToVerify = currentLookupIndex;
2630	*   append="hypervisor args -- kernel args"	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
2631
2632	if (i < line->numElements && doreplace) {	bootEntry = findEntryByIndex(config, indexToVerify);
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
2633
2634	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	if (bootEntry && bootEntry->skip) {
2635	/* root= replacement */	config->defaultImage--;
	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);
2636	}	}
	}
	else {
	/* insert/append */
	insertElement(line, *arg, i, cfg->cfi);
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
2637	}	}
2638	}	}
2639
2640	free(newArgs);	void setFallbackImage(struct grubConfig *config, int hasNew)
2641	free(oldArgs);	{
2642		struct singleEntry *entry, *entry2;
2643		int j;
2644
2645	return 0;	if (config->fallbackImage == -1)
2646	}	return;
2647
2648	int updateImage(struct grubConfig * cfg, const char * image,	entry = findEntryByIndex(config, config->fallbackImage);
2649	const char * prefix, const char * addArgs,	if (!entry || entry->skip) {
2650	const char * removeArgs,	config->fallbackImage = -1;
2651	const char * addMBArgs, const char * removeMBArgs) {	return;
	int rc = 0;
	if (!image) return rc;
	/* update the main args first... */
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
	return 1;
2652	}	}
2653
2654	break;	if (hasNew)
2655	}	config->fallbackImage++;
2656
2657	return 0;	/* count the number of entries erased before this one */
2658		for (j = 0; j < config->fallbackImage; j++) {
2659		entry2 = findEntryByIndex(config, j);
2660		if (entry2->skip)
2661		config->fallbackImage--;
2662		}
2663	}	}
2664
2665	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2666	int fd;	{
2667	unsigned char bootSect[512];	struct singleLine *line;
2668	int offset;	char *root = NULL;
2669		int i;
2670	fd = open(device, O_RDONLY);	int j;
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2671
2672	if (read(fd, bootSect, 512) != 512) {	printf("index=%d\n", index);
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	close(fd);
2673
2674	/* first three bytes should match, a jmp short should be in there */	line =
2675	if (memcmp(boot, bootSect, 3))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2676	return 0;	entry->lines);
2677		if (!line) {
2678		printf("non linux entry\n");
2679		return;
2680		}
2681
2682	if (boot[1] == JMP_SHORT_OPCODE) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2683	offset = boot[2] + 2;	printf("kernel=%s\n", line->elements[1].item);
2684	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	else
2685	offset = (boot[3] << 8) + boot[2] + 2;	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
2686
2687	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (line->numElements >= 3) {
2688	return 0;	printf("args=\"");
2689		i = 2;
2690		while (i < line->numElements) {
2691		if (!strncmp(line->elements[i].item, "root=", 5)) {
2692		root = line->elements[i].item + 5;
2693		} else {
2694		printf("%s%s", line->elements[i].item,
2695		line->elements[i].indent);
2696		}
2697
2698	return 2;	i++;
2699	}	}
2700		printf("\"\n");
2701		} else {
2702		line = getLineByType(LT_KERNELARGS, entry->lines);
2703		if (line) {
2704		char *s;
2705
2706		printf("args=\"");
2707		i = 1;
2708		while (i < line->numElements) {
2709		if (!strncmp
2710		(line->elements[i].item, "root=", 5)) {
2711		root = line->elements[i].item + 5;
2712		} else {
2713		s = line->elements[i].item;
2714
2715	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	printf("%s%s", s,
2716	int fd;	line->elements[i].indent);
2717	char buf[65536];	}
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
2718
2719	/* it's on raid; we need to parse /proc/mdstat and check all of the	i++;
2720	*raw* devices listed in there */	}
2721
2722	if (!strncmp(mdDev, "/dev/", 5))	s = line->elements[i - 1].indent;
2723	mdDev += 5;	printf("\"\n");
2724		}
2725		}
2726
2727	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!root) {
2728	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	line = getLineByType(LT_ROOT, entry->lines);
2729	strerror(errno));	if (line && line->numElements >= 2)
2730	return 2;	root = line->elements[1].item;
2731	}	}
2732
2733	rc = read(fd, buf, sizeof(buf) - 1);	if (root) {
2734	if (rc < 0 || rc == (sizeof(buf) - 1)) {	char *s = alloca(strlen(root) + 1);
	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2735
2736	chptr = buf;	strcpy(s, root);
2737	while (*chptr) {	if (s[strlen(s) - 1] == '"')
2738	end = strchr(chptr, '\n');	s[strlen(s) - 1] = '\0';
2739	if (!end) break;	/* make sure the root doesn't have a trailing " */
2740	*end = '\0';	printf("root=%s\n", s);
2741		}
2742
2743	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	line =
2744	chptr[strlen(mdDev)] == ' ') {	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2745		entry->lines);
2746
2747	/* found the device */	if (line && line->numElements >= 2) {
2748	while (*chptr && *chptr != ':') chptr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2749	chptr++;	printf("initrd=");
2750	while (*chptr && isspace(*chptr)) chptr++;	else
2751		printf("initrd=%s", prefix);
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
2752
2753	/*  we're good to go */	for (i = 1; i < line->numElements; i++)
2754	return 2;	printf("%s%s", line->elements[i].item,
2755		line->elements[i].indent);
2756		printf("\n");
2757	}	}
2758
2759	chptr = end + 1;	line = getLineByType(LT_TITLE, entry->lines);
2760	}	if (line) {
2761		printf("title=%s\n", line->elements[1].item);
2762		} else {
2763		char *title;
2764		line = getLineByType(LT_MENUENTRY, entry->lines);
2765		if (line) {
2766		title = grub2ExtractTitle(line);
2767		if (title)
2768		printf("title=%s\n", title);
2769		}
2770		}
2771
2772	fprintf(stderr,	for (j = 0, line = entry->lines; line; line = line->next) {
2773	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2774	mdDev);	if (!strncmp
2775	return 0;	(prefix, line->elements[1].item, strlen(prefix)))
2776		printf("mbmodule%d=", j);
2777		else
2778		printf("mbmodule%d=%s", j, prefix);
2779
2780		for (i = 1; i < line->numElements; i++)
2781		printf("%s%s", line->elements[i].item,
2782		line->elements[i].indent);
2783		printf("\n");
2784		j++;
2785		}
2786		}
2787	}	}
2788
2789	int checkForLilo(struct grubConfig * config) {	int isSuseSystem(void)
2790	int fd;	{
2791	unsigned char boot[512];	const char *path;
2792	struct singleLine * line;	const static char default_path[] = "/etc/SuSE-release";
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
2793
2794	if (line->numElements != 2) return 1;	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2795		path = default_path;
2796
2797	fd = open("/boot/boot.b", O_RDONLY);	if (!access(path, R_OK))
2798	if (fd < 0) {	return 1;
2799	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	return 0;
2800	"/boot/boot.b", strerror(errno));	}
	return 1;
	}
2801
2802	if (read(fd, boot, 512) != 512) {	int isSuseGrubConf(const char *path)
2803	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2804	"/boot/boot.b", strerror(errno));	FILE *grubConf;
2805	return 1;	char *line = NULL;
2806	}	size_t len = 0, res = 0;
2807	close(fd);
2808		grubConf = fopen(path, "r");
2809		if (!grubConf) {
2810		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2811		path);
2812		return 0;
2813		}
2814
2815		while ((res = getline(&line, &len, grubConf)) != -1) {
2816		if (!strncmp(line, "setup", 5)) {
2817		fclose(grubConf);
2818		free(line);
2819		return 1;
2820		}
2821		}
2822
2823	if (!strncmp("/dev/md", line->elements[1].item, 7))	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2824	return checkLiloOnRaid(line->elements[1].item, boot);	path);
2825
2826	return checkDeviceBootloader(line->elements[1].item, boot);	fclose(grubConf);
2827		free(line);
2828		return 0;
2829	}	}
2830
2831	int checkForGrub2(struct grubConfig * config) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2832	if (!access("/etc/grub.d/", R_OK))	{
2833	return 2;	FILE *grubConf;
2834		char *line = NULL;
2835		size_t res = 0, len = 0;
2836
2837	return 1;	if (!path)
2838	}	return 1;
2839		if (!lbaPtr)
2840		return 1;
2841
2842	int checkForGrub(struct grubConfig * config) {	grubConf = fopen(path, "r");
2843	int fd;	if (!grubConf)
2844	unsigned char bootSect[512];	return 1;
	char * boot;
2845
2846	if (parseSysconfigGrub(NULL, &boot))	while ((res = getline(&line, &len, grubConf)) != -1) {
2847	return 0;	if (line[res - 1] == '\n')
2848		line[res - 1] = '\0';
2849		else if (len > res)
2850		line[res] = '\0';
2851		else {
2852		line = realloc(line, res + 1);
2853		line[res] = '\0';
2854		}
2855
2856	/* assume grub is not installed -- not an error condition */	if (!strncmp(line, "setup", 5)) {
2857	if (!boot)	if (strstr(line, "--force-lba")) {
2858	return 0;	*lbaPtr = 1;
2859		} else {
2860		*lbaPtr = 0;
2861		}
2862		dbgPrintf("lba: %i\n", *lbaPtr);
2863		break;
2864		}
2865		}
2866
2867	fd = open("/boot/grub/stage1", O_RDONLY);	free(line);
2868	if (fd < 0)	fclose(grubConf);
	/* this doesn't exist if grub hasn't been installed */
2869	return 0;	return 0;
2870		}
2871
2872	if (read(fd, bootSect, 512) != 512) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2873	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2874	"/boot/grub/stage1", strerror(errno));	FILE *grubConf;
2875	close(fd);	char *line = NULL;
2876	return 1;	size_t res = 0, len = 0;
2877	}	char *lastParamPtr = NULL;
2878	close(fd);	char *secLastParamPtr = NULL;
2879		char installDeviceNumber = '\0';
2880		char *bounds = NULL;
2881
2882	return checkDeviceBootloader(boot, bootSect);	if (!path)
2883	}	return 1;
2884		if (!devicePtr)
2885		return 1;
2886
2887	int checkForExtLinux(struct grubConfig * config) {	grubConf = fopen(path, "r");
2888	int fd;	if (!grubConf)
2889	unsigned char bootSect[512];	return 1;
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
2890
2891	printf("entered: checkForExtLinux()\n");	while ((res = getline(&line, &len, grubConf)) != -1) {
2892		if (strncmp(line, "setup", 5))
2893		continue;
2894
2895		if (line[res - 1] == '\n')
2896		line[res - 1] = '\0';
2897		else if (len > res)
2898		line[res] = '\0';
2899		else {
2900		line = realloc(line, res + 1);
2901		line[res] = '\0';
2902		}
2903
2904	if (parseSysconfigGrub(NULL, &boot))	lastParamPtr = bounds = line + res;
	return 0;
2905
2906	/* assume grub is not installed -- not an error condition */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2907	if (!boot)	while (!isspace(*lastParamPtr))
2908	return 0;	lastParamPtr--;
2909		lastParamPtr++;
2910
2911		secLastParamPtr = lastParamPtr - 2;
2912		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2913
2914		if (lastParamPtr + 3 > bounds) {
2915		dbgPrintf("lastParamPtr going over boundary");
2916		fclose(grubConf);
2917		free(line);
2918		return 1;
2919		}
2920		if (!strncmp(lastParamPtr, "(hd", 3))
2921		lastParamPtr += 3;
2922		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2923
2924		/*
2925		* Second last parameter will decide wether last parameter is
2926		* an IMAGE_DEVICE or INSTALL_DEVICE
2927		*/
2928		while (!isspace(*secLastParamPtr))
2929		secLastParamPtr--;
2930		secLastParamPtr++;
2931
2932		if (secLastParamPtr + 3 > bounds) {
2933		dbgPrintf("secLastParamPtr going over boundary");
2934		fclose(grubConf);
2935		free(line);
2936		return 1;
2937		}
2938		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2939		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2940		secLastParamPtr += 3;
2941		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2942		installDeviceNumber = *secLastParamPtr;
2943		} else {
2944		installDeviceNumber = *lastParamPtr;
2945		}
2946
2947	fd = open(executable, O_RDONLY);	*devicePtr = malloc(6);
2948	if (fd < 0)	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2949	/* this doesn't exist if grub hasn't been installed */	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2950	return 0;	fclose(grubConf);
2951		free(line);
2952		return 0;
2953		}
2954
2955	if (read(fd, bootSect, 512) != 512) {	free(line);
2956	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	fclose(grubConf);
	executable, strerror(errno));
2957	return 1;	return 1;
	}
	close(fd);
	return checkDeviceBootloader(boot, bootSect);
2958	}	}
2959
2960	static char * getRootSpecifier(char * str) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2961	char * idx, * rootspec = NULL;	{
2962		FILE *deviceMap;
2963		char *line = NULL;
2964		size_t res = 0, len = 0;
2965		char *devicePtr;
2966		char *bounds = NULL;
2967		const char *path;
2968		const static char default_path[] = "/boot/grub/device.map";
2969
2970	if (*str == '(') {	if (!device)
2971	idx = rootspec = strdup(str);	return 1;
2972	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (!bootPtr)
2973	*(++idx) = '\0';	return 1;
	}
	return rootspec;
	}
2974
2975	static char * getInitrdVal(struct grubConfig * config,	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2976	const char * prefix, struct singleLine *tmplLine,	path = default_path;
	const char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount)
	{
	char *initrdVal, *end;
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
2977
2978	initrdVal = end = malloc(totalSize);	dbgPrintf("opening grub device.map file from: %s\n", path);
2979		deviceMap = fopen(path, "r");
2980		if (!deviceMap)
2981		return 1;
2982
2983	end = stpcpy (end, newKernelInitrd + prefixLen);	while ((res = getline(&line, &len, deviceMap)) != -1) {
2984		if (!strncmp(line, "#", 1))
2985		continue;
2986
2987		if (line[res - 1] == '\n')
2988		line[res - 1] = '\0';
2989		else if (len > res)
2990		line[res] = '\0';
2991		else {
2992		line = realloc(line, res + 1);
2993		line[res] = '\0';
2994		}
2995
2996	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	devicePtr = line;
2997	for (i = 0; i < extraInitrdCount; i++) {	bounds = line + res;
	const char *extraInitrd;
	int j;
2998
2999	extraInitrd = extraInitrds[i] + prefixLen;	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3000	/* Don't add entries that are already there */	devicePtr++;
3001	if (tmplLine != NULL) {	dbgPrintf("device: %s\n", devicePtr);
3002	for (j = 2; j < tmplLine->numElements; j++)
3003	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	if (!strncmp(devicePtr, device, strlen(device))) {
3004	break;	devicePtr += strlen(device);
3005		while (isspace(*devicePtr)
3006		&& ((devicePtr + 1) <= bounds))
3007		devicePtr++;
3008
3009	if (j != tmplLine->numElements)	*bootPtr = strdup(devicePtr);
3010	continue;	break;
3011		}
3012	}	}
3013
3014	*end++ = separatorChar;	free(line);
3015	end = stpcpy(end, extraInitrd);	fclose(deviceMap);
3016	}	return 0;
	return initrdVal;
3017	}	}
3018
3019	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3020	const char * prefix,	{
3021	char * newKernelPath, char * newKernelTitle,	char *grubDevice;
	char * newKernelArgs, char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount,
	char * newMBKernel, char * newMBKernelArgs) {
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
	}
3022
3023	newKernelTitle = buf + 6;	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3024	}	dbgPrintf("error looking for grub installation device\n");
3025		else
3026		dbgPrintf("grubby installation device: %s\n", grubDevice);
3027
3028	new = malloc(sizeof(*new));	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3029	new->skip = 0;	dbgPrintf("error looking for grub boot device\n");
3030	new->multiboot = 0;	else
3031	new->next = config->entries;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3032
3033	if (template) {	free(grubDevice);
3034	for (masterLine = template->lines;	return 0;
3035	masterLine && (tmplLine = lineDup(masterLine));	}
	lineFree(tmplLine), masterLine = masterLine->next)
	{
	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	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);
	}
	}
3036
3037	} else {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3038	/* don't have a template, so start the entry with the	{
3039	* appropriate starting line	/*
3040		* This SuSE grub configuration file at this location is not your
3041		* average grub configuration file, but instead the grub commands
3042		* used to setup grub on that system.
3043	*/	*/
3044	switch (config->cfi->entryStart) {	const char *path;
3045	case LT_KERNEL:	const static char default_path[] = "/etc/grub.conf";
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3046
3047	case LT_HYPER:	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3048	newLine = addLine(new, config->cfi, LT_HYPER,	path = default_path;
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3049
3050	case LT_MENUENTRY: {	if (!isSuseGrubConf(path))
3051	char *nkt = malloc(strlen(newKernelTitle)+3);	return 1;
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLine(new, config->cfi, LT_MENUENTRY,
	config->primaryIndent, nkt);
	free(nkt);
	needs &= ~NEED_TITLE;
	needs |= NEED_END;
	break;
	}
	case LT_TITLE:
	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)
	char * templabel;
	int x = 0, y = 0;
	templabel = strdup(newKernelTitle);
	while( templabel[x]){
	if( templabel[x] == ' ' ){
	y = x;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
	}
	}
	x++;
	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
	}
	needs &= ~NEED_TITLE;
	break;
3052
3053	default:	if (lbaPtr) {
3054	abort();	*lbaPtr = 0;
3055		if (suseGrubConfGetLba(path, lbaPtr))
3056		return 1;
3057	}	}
	}
	/* add the remainder of the lines, i.e. those that either
	* 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;
	}
	if (needs) {
	printf(_("grubby: needs=%d, aborting\n"), needs);
	abort();
	}
3058
3059	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (bootPtr) {
3060	newMBKernelArgs, NULL)) return 1;	*bootPtr = NULL;
3061		suseGrubConfGetBoot(path, bootPtr);
3062		}
3063
3064	return 0;	return 0;
3065	}	}
3066
3067	static void traceback(int signum)	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3068	{	{
3069	void *array[40];	FILE *in;
3070	size_t size;	char buf[1024];
3071		char *chptr;
3072		char *start;
3073		char *param;
3074
3075	signal(SIGSEGV, SIG_DFL);	in = fopen("/etc/sysconfig/grub", "r");
3076	memset(array, '\0', sizeof (array));	if (!in)
	size = backtrace(array, 40);
	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",
	(unsigned long)size);
	backtrace_symbols_fd(array, size, STDERR_FILENO);
	exit(1);
	}
	int main(int argc, const char ** argv) {
	poptContext optCon;
	const char * grubConfig = NULL;
	char * outputFile = NULL;
	int arg = 0;
	int flags = 0;
	int badImageOkay = 0;
	int configureGrub2 = 0;
	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
	int configureExtLinux = 0;
	int bootloaderProbe = 0;
	int extraInitrdCount = 0;
	char * updateKernelPath = NULL;
	char * newKernelPath = NULL;
	char * removeKernelPath = NULL;
	char * newKernelArgs = NULL;
	char * newKernelInitrd = NULL;
	char * newKernelTitle = NULL;
	char * newKernelVersion = NULL;
	char * newMBKernel = NULL;
	char * newMBKernelArgs = NULL;
	char * removeMBKernelArgs = NULL;
	char * removeMBKernel = NULL;
	char * bootPrefix = NULL;
	char * defaultKernel = NULL;
	char * removeArgs = NULL;
	char * kernelInfo = NULL;
	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
	const char * chptr = NULL;
	struct configFileInfo * cfi = NULL;
	struct grubConfig * config;
	struct singleEntry * template = NULL;
	int copyDefault = 0, makeDefault = 0;
	int displayDefault = 0;
	int displayDefaultIndex = 0;
	int displayDefaultTitle = 0;
	struct poptOption options[] = {
	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
	_("add an entry for the specified kernel"), _("kernel-path") },
	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
	_("add an entry for the specified multiboot kernel"), NULL },
	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
	#if defined(__i386__) || defined(__x86_64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check if lilo is installed on lilo.conf boot sector") },
	#endif
	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
	_("path to grub config file to update (\"-\" for stdin)"),
	_("path") },
	{ "copy-default", 0, 0, &copyDefault, 0,
	_("use the default boot entry as a template for the new entry "
	"being added; if the default is not a linux image, or if "
	"the kernel referenced by the default image does not exist, "
	"the first linux entry whose kernel does exist is used as the "
	"template"), NULL },
	{ "default-kernel", 0, 0, &displayDefault, 0,
	_("display the path of the default kernel") },
	{ "default-index", 0, 0, &displayDefaultIndex, 0,
	_("display the index of the default kernel") },
	{ "default-title", 0, 0, &displayDefaultTitle, 0,
	_("display the title of the default kernel") },
	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
	_("configure elilo bootloader") },
	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
	_("configure extlinux bootloader (from syslinux)") },
	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	optCon = poptGetContext("grubby", argc, argv, options, 0);
	poptReadDefaultConfig(optCon, 1);
	while ((arg = poptGetNextOpt(optCon)) >= 0) {
	switch (arg) {
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
3077	return 1;	return 1;
	}
	break;
	}
	}
	if (arg < -1) {
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
3078
3079	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	if (lbaPtr)
3080	configureYaboot + configureSilo + configureZipl +	*lbaPtr = 0;
3081	configureExtLinux ) > 1) {	if (bootPtr)
3082	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	*bootPtr = NULL;
3083	return 1;
3084	} else if (bootloaderProbe && grubConfig) {	while (fgets(buf, sizeof(buf), in)) {
3085	fprintf(stderr,	start = buf;
3086	_("grubby: cannot specify config file with --bootloader-probe\n"));	while (isspace(*start))
3087	return 1;	start++;
3088	} else if (configureGrub2) {	if (*start == '#')
3089	cfi = &grub2ConfigType;	continue;
3090	} else if (configureLilo) {
3091	cfi = &liloConfigType;	chptr = strchr(start, '=');
3092	} else if (configureGrub) {	if (!chptr)
3093	cfi = &grubConfigType;	continue;
3094	} else if (configureELilo) {	chptr--;
3095	cfi = &eliloConfigType;	while (*chptr && isspace(*chptr))
3096	} else if (configureYaboot) {	chptr--;
3097	cfi = &yabootConfigType;	chptr++;
3098	} else if (configureSilo) {	*chptr = '\0';
3099	cfi = &siloConfigType;
3100	} else if (configureZipl) {	param = chptr + 1;
3101	cfi = &ziplConfigType;	while (*param && isspace(*param))
3102	} else if (configureExtLinux) {	param++;
3103	cfi = &extlinuxConfigType;	if (*param == '=') {
3104	useextlinuxmenu=1;	param++;
3105	}	while (*param && isspace(*param))
3106		param++;
3107	if (!cfi) {	}
	#ifdef __ia64__
	cfi = &eliloConfigType;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	if (grub2FindConfig(&grub2ConfigType))
	cfi = &grub2ConfigType;
	else
	cfi = &grubConfigType;
	#endif
	}
	if (!grubConfig) {
	if (cfi->findConfig)
	grubConfig = cfi->findConfig(cfi);
	if (!grubConfig)
	grubConfig = cfi->defaultConfig;
	}
3108
3109	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	chptr = param;
3110	newKernelPath || removeKernelPath || makeDefault ||	while (*chptr && !isspace(*chptr))
3111	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	chptr++;
3112	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	*chptr = '\0';
3113	"specified option"));
3114	return 1;	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3115	}	*lbaPtr = 1;
3116		else if (!strcmp(start, "boot") && bootPtr)
3117		*bootPtr = strdup(param);
3118		}
3119
3120	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	fclose(in);
	removeKernelPath)) {
	fprintf(stderr, _("grubby: --default-kernel and --info may not "
	"be used when adding or removing kernels\n"));
	return 1;
	}
3121
3122	if (newKernelPath && !newKernelTitle) {	return 0;
3123	fprintf(stderr, _("grubby: kernel title must be specified\n"));	}
	return 1;
	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||
	(newKernelInitrd && !updateKernelPath)||
	makeDefault || extraInitrdCount > 0)) {
	fprintf(stderr, _("grubby: kernel path expected\n"));
	return 1;
	}
3124
3125	if (newKernelPath && updateKernelPath) {	void dumpSysconfigGrub(void)
3126	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	{
3127	"not be used together"));	char *boot = NULL;
3128	return 1;	int lba;
	}
3129
3130	if (makeDefault && defaultKernel) {	if (isSuseSystem()) {
3131	fprintf(stderr, _("grubby: --make-default and --default-kernel "	if (parseSuseGrubConf(&lba, &boot)) {
3132	"may not be used together\n"));	free(boot);
3133	return 1;	return;
3134	} else if (defaultKernel && removeKernelPath &&	}
3135	!strcmp(defaultKernel, removeKernelPath)) {	} else {
3136	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	if (parseSysconfigGrub(&lba, &boot)) {
3137	return 1;	free(boot);
3138	} else if (defaultKernel && newKernelPath &&	return;
3139	!strcmp(defaultKernel, newKernelPath)) {	}
3140	makeDefault = 1;	}
	defaultKernel = NULL;
	}
3141
3142	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (lba)
3143	fprintf(stderr, _("grubby: output file must be specified if stdin "	printf("lba\n");
3144	"is used\n"));	if (boot) {
3145	return 1;	printf("boot=%s\n", boot);
3146	}	free(boot);
3147		}
3148		}
3149
3150	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3151	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	{
3152	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	int i = 0;
3153	fprintf(stderr, _("grubby: no action specified\n"));	struct singleEntry *entry;
3154	return 1;	struct singleLine *line;
3155	}
3156		entry = findEntryByPath(config, kernel, prefix, &i);
3157		if (!entry) {
3158		fprintf(stderr, _("grubby: kernel not found\n"));
3159		return 1;
3160		}
3161
3162	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3163		be a better way */
3164		if (config->cfi == &grubConfigType) {
3165		dumpSysconfigGrub();
3166		} else {
3167		line = getLineByType(LT_BOOT, config->theLines);
3168		if (line && line->numElements >= 1) {
3169		printf("boot=%s\n", line->elements[1].item);
3170		}
3171
3172	if (cfi->needsBootPrefix) {	line = getLineByType(LT_LBA, config->theLines);
3173	if (!bootPrefix) {	if (line)
3174	bootPrefix = findBootPrefix();	printf("lba\n");
	if (!bootPrefix) return 1;
	} else {
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
3175	}	}
	} else {
	bootPrefix = "";
	}
3176
3177	if (!cfi->mbAllowExtraInitRds &&	displayEntry(entry, prefix, i);
	extraInitrdCount > 0) {
	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);
	return 1;
	}
3178
3179	if (bootloaderProbe) {	i++;
3180	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3181	struct grubConfig * lconfig, * gconfig;	displayEntry(entry, prefix, i);
3182		i++;
3183	const char *grub2config = grub2FindConfig(&grub2ConfigType);	}
	if (grub2config) {
	gconfig = readConfig(grub2config, &grub2ConfigType);
	if (!gconfig)
	gr2c = 1;
	else
	gr2c = checkForGrub2(gconfig);
	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	erc = 1;
	else
	erc = checkForExtLinux(lconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1) return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
3184
3185	return 0;	return 0;
3186	}	}
3187
3188	config = readConfig(grubConfig, cfi);	struct singleLine *addLineTmpl(struct singleEntry *entry,
3189	if (!config) return 1;	struct singleLine *tmplLine,
3190		struct singleLine *prevLine,
3191		const char *val, struct configFileInfo *cfi)
3192		{
3193		struct singleLine *newLine = lineDup(tmplLine);
3194
3195	if (displayDefault) {	if (isEfi && cfi == &grub2ConfigType) {
3196	struct singleLine * line;	enum lineType_e old = newLine->type;
3197	struct singleEntry * entry;	newLine->type = preferredLineType(newLine->type, cfi);
3198	char * rootspec;	if (old != newLine->type)
3199		newLine->elements[0].item =
3200	if (config->defaultImage == -1) return 0;	getKeyByType(newLine->type, cfi);
3201	entry = findEntryByIndex(config, config->defaultImage);	}
	if (!entry) return 0;
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
3202
3203	return 0;	if (val) {
3204		/* override the inherited value with our own.
3205		* This is a little weak because it only applies to elements[1]
3206		*/
3207		if (newLine->numElements > 1)
3208		removeElement(newLine, 1);
3209		insertElement(newLine, val, 1, cfi);
3210
3211		/* but try to keep the rootspec from the template... sigh */
3212		if (tmplLine->
3213		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3214		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3215		LT_INITRD_16)) {
3216		char *rootspec =
3217		getRootSpecifier(tmplLine->elements[1].item);
3218		if (rootspec != NULL) {
3219		free(newLine->elements[1].item);
3220		newLine->elements[1].item =
3221		sdupprintf("%s%s", rootspec, val);
3222		}
3223		}
3224		}
3225
3226		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3227		newLine->elements[0].item : "");
3228
3229	} else if (displayDefaultTitle) {	if (!entry->lines) {
3230	struct singleLine * line;	/* first one on the list */
3231	struct singleEntry * entry;	entry->lines = newLine;
3232		} else if (prevLine) {
3233	if (config->defaultImage == -1) return 0;	/* add after prevLine */
3234	entry = findEntryByIndex(config, config->defaultImage);	newLine->next = prevLine->next;
3235	if (!entry) return 0;	prevLine->next = newLine;
	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");
3236	}	}
	return 0;
3237
3238	} else if (displayDefaultIndex) {	return newLine;
3239	if (config->defaultImage == -1) return 0;	}
	printf("%i\n", config->defaultImage);
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
3240
3241	markRemovedImage(config, removeKernelPath, bootPrefix);	/* val may be NULL */
3242	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *addLine(struct singleEntry *entry,
3243	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct configFileInfo *cfi,
3244	bootPrefix, flags);	enum lineType_e type, char *defaultIndent,
3245	setFallbackImage(config, newKernelPath != NULL);	const char *val)
3246	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	{
3247	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleLine *line, *prev;
3248	if (updateKernelPath && newKernelInitrd) {	struct keywordTypes *kw;
3249	if (updateInitrd(config, updateKernelPath, bootPrefix,	struct singleLine tmpl;
3250	newKernelInitrd)) return 1;
3251	}	/* NB: This function shouldn't allocate items on the heap, rather on
3252	if (addNewKernel(config, template, bootPrefix, newKernelPath,	* the stack since it calls addLineTmpl which will make copies.
3253	newKernelTitle, newKernelArgs, newKernelInitrd,	*/
3254	extraInitrds, extraInitrdCount,	if (type == LT_TITLE && cfi->titleBracketed) {
3255	newMBKernel, newMBKernelArgs)) return 1;	/* we're doing a bracketed title (zipl) */
3256		tmpl.type = type;
3257		tmpl.numElements = 1;
3258	if (numEntries(config) == 0) {	tmpl.elements = alloca(sizeof(*tmpl.elements));
3259	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	tmpl.elements[0].item = alloca(strlen(val) + 3);
3260	"Not writing out new config.\n"));	sprintf(tmpl.elements[0].item, "[%s]", val);
3261	return 1;	tmpl.elements[0].indent = "";
3262	}	val = NULL;
3263		} else if (type == LT_MENUENTRY) {
3264		char *lineend = "--class gnu-linux --class gnu --class os {";
3265		if (!val) {
3266		fprintf(stderr,
3267		"Line type LT_MENUENTRY requires a value\n");
3268		abort();
3269		}
3270		kw = getKeywordByType(type, cfi);
3271		if (!kw) {
3272		fprintf(stderr,
3273		"Looking up keyword for unknown type %d\n",
3274		type);
3275		abort();
3276		}
3277		tmpl.indent = "";
3278		tmpl.type = type;
3279		tmpl.numElements = 3;
3280		tmpl.elements =
3281		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3282		tmpl.elements[0].item = kw->key;
3283		tmpl.elements[0].indent = alloca(2);
3284		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3285		tmpl.elements[1].item = (char *)val;
3286		tmpl.elements[1].indent = alloca(2);
3287		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3288		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3289		strcpy(tmpl.elements[2].item, lineend);
3290		tmpl.elements[2].indent = "";
3291		} else {
3292		kw = getKeywordByType(type, cfi);
3293		if (!kw) {
3294		fprintf(stderr,
3295		"Looking up keyword for unknown type %d\n",
3296		type);
3297		abort();
3298		}
3299		tmpl.type = type;
3300		tmpl.numElements = val ? 2 : 1;
3301		tmpl.elements =
3302		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3303		tmpl.elements[0].item = kw->key;
3304		tmpl.elements[0].indent = alloca(2);
3305		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3306		if (val) {
3307		tmpl.elements[1].item = (char *)val;
3308		tmpl.elements[1].indent = "";
3309		}
3310		}
3311
3312		/* The last non-empty line gives us the indention to us and the line
3313		* to insert after. Note that comments are considered empty lines,
3314		* which may not be ideal? If there are no lines or we are looking at
3315		* the first line, we use defaultIndent (the first line is normally
3316		* indented differently from the rest) */
3317		for (line = entry->lines, prev = NULL; line; line = line->next) {
3318		if (line->numElements)
3319		prev = line;
3320		/* fall back on the last line if prev isn't otherwise set */
3321		if (!line->next && !prev)
3322		prev = line;
3323		}
3324
3325		struct singleLine *menuEntry;
3326		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3327		if (tmpl.type == LT_ENTRY_END) {
3328		if (menuEntry)
3329		tmpl.indent = menuEntry->indent;
3330		else
3331		tmpl.indent = defaultIndent ? : "";
3332		} else if (tmpl.type != LT_MENUENTRY) {
3333		if (menuEntry)
3334		tmpl.indent = "\t";
3335		else if (prev == entry->lines)
3336		tmpl.indent = defaultIndent ? : "";
3337		else
3338		tmpl.indent = prev->indent;
3339		}
3340
3341		return addLineTmpl(entry, &tmpl, prev, val, cfi);
3342		}
3343
3344		void removeLine(struct singleEntry *entry, struct singleLine *line)
3345		{
3346		struct singleLine *prev;
3347		int i;
3348
3349		for (i = 0; i < line->numElements; i++) {
3350		free(line->elements[i].item);
3351		free(line->elements[i].indent);
3352		}
3353		free(line->elements);
3354		free(line->indent);
3355
3356		if (line == entry->lines) {
3357		entry->lines = line->next;
3358		} else {
3359		prev = entry->lines;
3360		while (prev->next != line)
3361		prev = prev->next;
3362		prev->next = line->next;
3363		}
3364
3365		free(line);
3366		}
3367
3368		static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3369		{
3370		struct singleLine newLine = {
3371		.indent = tmplLine->indent,
3372		.type = tmplLine->type,
3373		.next = tmplLine->next,
3374		};
3375		int firstQuotedItem = -1;
3376		int quoteLen = 0;
3377		int j;
3378		int element = 0;
3379		char *c;
3380
3381		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3382		strcpy(c, tmplLine->elements[0].item);
3383		insertElement(&newLine, c, element++, cfi);
3384		free(c);
3385		c = NULL;
3386
3387		for (j = 1; j < tmplLine->numElements; j++) {
3388		if (firstQuotedItem == -1) {
3389		quoteLen += strlen(tmplLine->elements[j].item);
3390
3391		if (isquote(tmplLine->elements[j].item[0])) {
3392		firstQuotedItem = j;
3393		quoteLen +=
3394		strlen(tmplLine->elements[j].indent);
3395		} else {
3396		c = malloc(quoteLen + 1);
3397		strcpy(c, tmplLine->elements[j].item);
3398		insertElement(&newLine, c, element++, cfi);
3399		free(c);
3400		quoteLen = 0;
3401		}
3402		} else {
3403		int itemlen = strlen(tmplLine->elements[j].item);
3404		quoteLen += itemlen;
3405		quoteLen += strlen(tmplLine->elements[j].indent);
3406
3407		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3408		c = malloc(quoteLen + 1);
3409		c[0] = '\0';
3410		for (int i = firstQuotedItem; i < j + 1; i++) {
3411		strcat(c, tmplLine->elements[i].item);
3412		strcat(c, tmplLine->elements[i].indent);
3413		}
3414		insertElement(&newLine, c, element++, cfi);
3415		free(c);
3416
3417		firstQuotedItem = -1;
3418		quoteLen = 0;
3419		}
3420		}
3421		}
3422		while (tmplLine->numElements)
3423		removeElement(tmplLine, 0);
3424		if (tmplLine->elements)
3425		free(tmplLine->elements);
3426
3427		tmplLine->numElements = newLine.numElements;
3428		tmplLine->elements = newLine.elements;
3429		}
3430
3431		static void insertElement(struct singleLine *line,
3432		const char *item, int insertHere,
3433		struct configFileInfo *cfi)
3434		{
3435		struct keywordTypes *kw;
3436		char indent[2] = "";
3437
3438		/* sanity check */
3439		if (insertHere > line->numElements) {
3440		dbgPrintf
3441		("insertElement() adjusting insertHere from %d to %d\n",
3442		insertHere, line->numElements);
3443		insertHere = line->numElements;
3444		}
3445
3446		line->elements = realloc(line->elements, (line->numElements + 1) *
3447		sizeof(*line->elements));
3448		memmove(&line->elements[insertHere + 1],
3449		&line->elements[insertHere],
3450		(line->numElements - insertHere) * sizeof(*line->elements));
3451		line->elements[insertHere].item = strdup(item);
3452
3453		kw = getKeywordByType(line->type, cfi);
3454
3455		if (line->numElements == 0) {
3456		indent[0] = '\0';
3457		} else if (insertHere == 0) {
3458		indent[0] = kw->nextChar;
3459		} else if (kw->separatorChar != '\0') {
3460		indent[0] = kw->separatorChar;
3461		} else {
3462		indent[0] = ' ';
3463		}
3464
3465		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3466		/* move the end-of-line forward */
3467		line->elements[insertHere].indent =
3468		line->elements[insertHere - 1].indent;
3469		line->elements[insertHere - 1].indent = strdup(indent);
3470		} else {
3471		line->elements[insertHere].indent = strdup(indent);
3472		}
3473
3474		line->numElements++;
3475
3476		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3477		line->elements[0].item,
3478		line->elements[insertHere].item,
3479		line->elements[insertHere].indent, insertHere);
3480		}
3481
3482		static void removeElement(struct singleLine *line, int removeHere)
3483		{
3484		int i;
3485
3486		/* sanity check */
3487		if (removeHere >= line->numElements)
3488		return;
3489
3490		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3491		removeHere, line->elements[removeHere].item);
3492
3493		free(line->elements[removeHere].item);
3494
3495		if (removeHere > 1) {
3496		/* previous argument gets this argument's post-indentation */
3497		free(line->elements[removeHere - 1].indent);
3498		line->elements[removeHere - 1].indent =
3499		line->elements[removeHere].indent;
3500		} else {
3501		free(line->elements[removeHere].indent);
3502		}
3503
3504		/* now collapse the array, but don't bother to realloc smaller */
3505		for (i = removeHere; i < line->numElements - 1; i++)
3506		line->elements[i] = line->elements[i + 1];
3507
3508		line->numElements--;
3509		}
3510
3511		int argMatch(const char *one, const char *two)
3512		{
3513		char *first, *second;
3514		char *chptr;
3515
3516		first = strcpy(alloca(strlen(one) + 1), one);
3517		second = strcpy(alloca(strlen(two) + 1), two);
3518
3519		chptr = strchr(first, '=');
3520		if (chptr)
3521		*chptr = '\0';
3522
3523		chptr = strchr(second, '=');
3524		if (chptr)
3525		*chptr = '\0';
3526
3527		return strcmp(first, second);
3528		}
3529
3530		int updateActualImage(struct grubConfig *cfg, const char *image,
3531		const char *prefix, const char *addArgs,
3532		const char *removeArgs, int multibootArgs)
3533		{
3534		struct singleEntry *entry;
3535		struct singleLine *line, *rootLine;
3536		int index = 0;
3537		int i, k;
3538		const char **newArgs, **oldArgs;
3539		const char **arg;
3540		int useKernelArgs, useRoot;
3541		int firstElement;
3542		int *usedElements;
3543		int doreplace;
3544
3545		if (!image)
3546		return 0;
3547
3548		if (!addArgs) {
3549		newArgs = malloc(sizeof(*newArgs));
3550		*newArgs = NULL;
3551		} else {
3552		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3553		fprintf(stderr,
3554		_("grubby: error separating arguments '%s'\n"),
3555		addArgs);
3556		return 1;
3557		}
3558		}
3559
3560		if (!removeArgs) {
3561		oldArgs = malloc(sizeof(*oldArgs));
3562		*oldArgs = NULL;
3563		} else {
3564		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3565		fprintf(stderr,
3566		_("grubby: error separating arguments '%s'\n"),
3567		removeArgs);
3568		free(newArgs);
3569		return 1;
3570		}
3571		}
3572
3573		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3574		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3575
3576		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3577		&& !multibootArgs);
3578
3579		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3580
3581		if (multibootArgs && !entry->multiboot)
3582		continue;
3583
3584		/* Determine where to put the args.  If this config supports
3585		* LT_KERNELARGS, use that.  Otherwise use
3586		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3587		*/
3588		if (useKernelArgs) {
3589		line = getLineByType(LT_KERNELARGS, entry->lines);
3590		if (!line) {
3591		/* no LT_KERNELARGS, need to add it */
3592		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3593		cfg->secondaryIndent, NULL);
3594		}
3595		firstElement = 1;
3596
3597		} else if (multibootArgs) {
3598		line = getLineByType(LT_HYPER, entry->lines);
3599		if (!line) {
3600		/* a multiboot entry without LT_HYPER? */
3601		continue;
3602		}
3603		firstElement = 2;
3604
3605		} else {
3606		line =
3607		getLineByType(LT_KERNEL | LT_MBMODULE |
3608		LT_KERNEL_EFI | LT_KERNEL_16,
3609		entry->lines);
3610		if (!line) {
3611		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3612		continue;
3613		}
3614		firstElement = 2;
3615		}
3616
3617		/* handle the elilo case which does:
3618		*   append="hypervisor args -- kernel args"
3619		*/
3620		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3621		/* this is a multiboot entry, make sure there's
3622		* -- on the args line
3623		*/
3624		for (i = firstElement; i < line->numElements; i++) {
3625		if (!strcmp(line->elements[i].item, "--"))
3626		break;
3627		}
3628		if (i == line->numElements) {
3629		/* assume all existing args are kernel args,
3630		* prepend -- to make it official
3631		*/
3632		insertElement(line, "--", firstElement,
3633		cfg->cfi);
3634		i = firstElement;
3635		}
3636		if (!multibootArgs) {
3637		/* kernel args start after the -- */
3638		firstElement = i + 1;
3639		}
3640		} else if (cfg->cfi->mbConcatArgs) {
3641		/* this is a non-multiboot entry, remove hyper args */
3642		for (i = firstElement; i < line->numElements; i++) {
3643		if (!strcmp(line->elements[i].item, "--"))
3644		break;
3645		}
3646		if (i < line->numElements) {
3647		/* remove args up to -- */
3648		while (strcmp
3649		(line->elements[firstElement].item,
3650		"--"))
3651		removeElement(line, firstElement);
3652		/* remove -- */
3653		removeElement(line, firstElement);
3654		}
3655		}
3656
3657		usedElements = calloc(line->numElements, sizeof(*usedElements));
3658
3659		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3660
3661		doreplace = 1;
3662		for (i = firstElement; i < line->numElements; i++) {
3663		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3664		!strcmp(line->elements[i].item, "--")) {
3665		/* reached the end of hyper args, insert here */
3666		doreplace = 0;
3667		break;
3668		}
3669		if (usedElements[i])
3670		continue;
3671		if (!argMatch(line->elements[i].item, *arg)) {
3672		usedElements[i] = 1;
3673		break;
3674		}
3675		}
3676
3677		if (i < line->numElements && doreplace) {
3678		/* direct replacement */
3679		free(line->elements[i].item);
3680		line->elements[i].item = strdup(*arg);
3681
3682		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3683		/* root= replacement */
3684		rootLine = getLineByType(LT_ROOT, entry->lines);
3685		if (rootLine) {
3686		free(rootLine->elements[1].item);
3687		rootLine->elements[1].item =
3688		strdup(*arg + 5);
3689		} else {
3690		rootLine =
3691		addLine(entry, cfg->cfi, LT_ROOT,
3692		cfg->secondaryIndent,
3693		*arg + 5);
3694		}
3695		}
3696
3697		else {
3698		/* insert/append */
3699		insertElement(line, *arg, i, cfg->cfi);
3700		usedElements =
3701		realloc(usedElements,
3702		line->numElements *
3703		sizeof(*usedElements));
3704		memmove(&usedElements[i + 1], &usedElements[i],
3705		line->numElements - i - 1);
3706		usedElements[i] = 1;
3707
3708		/* if we updated a root= here even though
3709		* there is a LT_ROOT available we need to
3710		* remove the LT_ROOT entry (this will happen
3711		* if we switch from a device to a label) */
3712		if (useRoot && !strncmp(*arg, "root=", 5)) {
3713		rootLine =
3714		getLineByType(LT_ROOT,
3715		entry->lines);
3716		if (rootLine)
3717		removeLine(entry, rootLine);
3718		}
3719		}
3720		}
3721
3722		free(usedElements);
3723
3724		for (arg = oldArgs; *arg; arg++) {
3725		for (i = firstElement; i < line->numElements; i++) {
3726		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3727		!strcmp(line->elements[i].item, "--"))
3728		/* reached the end of hyper args, stop here */
3729		break;
3730		if (!argMatch(line->elements[i].item, *arg)) {
3731		removeElement(line, i);
3732		break;
3733		}
3734		}
3735		/* handle removing LT_ROOT line too */
3736		if (useRoot && !strncmp(*arg, "root=", 5)) {
3737		rootLine = getLineByType(LT_ROOT, entry->lines);
3738		if (rootLine)
3739		removeLine(entry, rootLine);
3740		}
3741		}
3742
3743		if (line->numElements == 1) {
3744		/* don't need the line at all (note it has to be a
3745		LT_KERNELARGS for this to happen */
3746		removeLine(entry, line);
3747		}
3748		}
3749
3750		free(newArgs);
3751		free(oldArgs);
3752
3753		return 0;
3754		}
3755
3756		int updateImage(struct grubConfig *cfg, const char *image,
3757		const char *prefix, const char *addArgs,
3758		const char *removeArgs,
3759		const char *addMBArgs, const char *removeMBArgs)
3760		{
3761		int rc = 0;
3762
3763		if (!image)
3764		return rc;
3765
3766		/* update the main args first... */
3767		if (addArgs || removeArgs)
3768		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3769		0);
3770		if (rc)
3771		return rc;
3772
3773		/* and now any multiboot args */
3774		if (addMBArgs || removeMBArgs)
3775		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3776		removeMBArgs, 1);
3777		return rc;
3778		}
3779
3780		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3781		const char *image, const char *prefix, const char *initrd,
3782		const char *title)
3783		{
3784		struct singleEntry *entry;
3785		struct singleLine *line, *kernelLine, *endLine = NULL;
3786		int index = 0;
3787
3788		if (!image)
3789		return 0;
3790
3791		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3792		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3793		if (!kernelLine)
3794		continue;
3795
3796		/* if title is supplied, the entry's title must match it. */
3797		if (title) {
3798		char *linetitle;
3799
3800		line =
3801		getLineByType(LT_TITLE | LT_MENUENTRY,
3802		entry->lines);
3803		if (!line)
3804		continue;
3805
3806		linetitle = extractTitle(cfg, line);
3807		if (!linetitle)
3808		continue;
3809		if (strcmp(title, linetitle)) {
3810		free(linetitle);
3811		continue;
3812		}
3813		free(linetitle);
3814		}
3815
3816		if (prefix) {
3817		int prefixLen = strlen(prefix);
3818		if (!strncmp(initrd, prefix, prefixLen))
3819		initrd += prefixLen;
3820		}
3821		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3822		if (endLine)
3823		removeLine(entry, endLine);
3824		line =
3825		addLine(entry, cfg->cfi,
3826		preferredLineType(LT_MBMODULE, cfg->cfi),
3827		kernelLine->indent, initrd);
3828		if (!line)
3829		return 1;
3830		if (endLine) {
3831		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3832		if (!line)
3833		return 1;
3834		}
3835
3836		break;
3837		}
3838
3839		return 0;
3840		}
3841
3842		int updateInitrd(struct grubConfig *cfg, const char *image,
3843		const char *prefix, const char *initrd, const char *title)
3844		{
3845		struct singleEntry *entry;
3846		struct singleLine *line, *kernelLine, *endLine = NULL;
3847		int index = 0;
3848
3849		if (!image)
3850		return 0;
3851
3852		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3853		kernelLine =
3854		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3855		entry->lines);
3856		if (!kernelLine)
3857		continue;
3858
3859		/* if title is supplied, the entry's title must match it. */
3860		if (title) {
3861		char *linetitle;
3862
3863		line =
3864		getLineByType(LT_TITLE | LT_MENUENTRY,
3865		entry->lines);
3866		if (!line)
3867		continue;
3868
3869		linetitle = extractTitle(cfg, line);
3870		if (!linetitle)
3871		continue;
3872		if (strcmp(title, linetitle)) {
3873		free(linetitle);
3874		continue;
3875		}
3876		free(linetitle);
3877		}
3878
3879		line =
3880		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3881		entry->lines);
3882		if (line)
3883		removeLine(entry, line);
3884		if (prefix) {
3885		int prefixLen = strlen(prefix);
3886		if (!strncmp(initrd, prefix, prefixLen))
3887		initrd += prefixLen;
3888		}
3889		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3890		if (endLine)
3891		removeLine(entry, endLine);
3892		enum lineType_e lt;
3893		switch (kernelLine->type) {
3894		case LT_KERNEL:
3895		lt = LT_INITRD;
3896		break;
3897		case LT_KERNEL_EFI:
3898		lt = LT_INITRD_EFI;
3899		break;
3900		case LT_KERNEL_16:
3901		lt = LT_INITRD_16;
3902		break;
3903		default:
3904		lt = preferredLineType(LT_INITRD, cfg->cfi);
3905		}
3906		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3907		if (!line)
3908		return 1;
3909		if (endLine) {
3910		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3911		if (!line)
3912		return 1;
3913		}
3914
3915		break;
3916		}
3917
3918		return 0;
3919		}
3920
3921		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3922		{
3923		int fd;
3924		unsigned char bootSect[512];
3925		int offset;
3926
3927		fd = open(device, O_RDONLY);
3928		if (fd < 0) {
3929		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3930		device, strerror(errno));
3931		return 1;
3932		}
3933
3934		if (read(fd, bootSect, 512) != 512) {
3935		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3936		device, strerror(errno));
3937		return 1;
3938		}
3939		close(fd);
3940
3941		/* first three bytes should match, a jmp short should be in there */
3942		if (memcmp(boot, bootSect, 3))
3943		return 0;
3944
3945		if (boot[1] == JMP_SHORT_OPCODE) {
3946		offset = boot[2] + 2;
3947		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3948		offset = (boot[3] << 8) + boot[2] + 2;
3949		} else if (boot[0] == JMP_SHORT_OPCODE) {
3950		offset = boot[1] + 2;
3951		/*
3952		* it looks like grub, when copying stage1 into the mbr,
3953		* patches stage1 right after the JMP location, replacing
3954		* other instructions such as JMPs for NOOPs. So, relax the
3955		* check a little bit by skipping those different bytes.
3956		*/
3957		if ((bootSect[offset + 1] == NOOP_OPCODE)
3958		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3959		offset = offset + 3;
3960		}
3961		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3962		offset = (boot[2] << 8) + boot[1] + 2;
3963		} else {
3964		return 0;
3965		}
3966
3967		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3968		return 0;
3969
3970		return 2;
3971		}
3972
3973		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3974		{
3975		int fd;
3976		char buf[65536];
3977		char *end;
3978		char *chptr;
3979		char *chptr2;
3980		int rc;
3981
3982		/* it's on raid; we need to parse /proc/mdstat and check all of the
3983		*raw* devices listed in there */
3984
3985		if (!strncmp(mdDev, "/dev/", 5))
3986		mdDev += 5;
3987
3988		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3989		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3990		strerror(errno));
3991		return 2;
3992		}
3993
3994		rc = read(fd, buf, sizeof(buf) - 1);
3995		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3996		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3997		strerror(errno));
3998		close(fd);
3999		return 2;
4000		}
4001		close(fd);
4002		buf[rc] = '\0';
4003
4004		chptr = buf;
4005		while (*chptr) {
4006		end = strchr(chptr, '\n');
4007		if (!end)
4008		break;
4009		*end = '\0';
4010
4011		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4012		chptr[strlen(mdDev)] == ' ') {
4013
4014		/* found the device */
4015		while (*chptr && *chptr != ':')
4016		chptr++;
4017		chptr++;
4018		while (*chptr && isspace(*chptr))
4019		chptr++;
4020
4021		/* skip the "active" bit */
4022		while (*chptr && !isspace(*chptr))
4023		chptr++;
4024		while (*chptr && isspace(*chptr))
4025		chptr++;
4026
4027		/* skip the raid level */
4028		while (*chptr && !isspace(*chptr))
4029		chptr++;
4030		while (*chptr && isspace(*chptr))
4031		chptr++;
4032
4033		/* everything else is partition stuff */
4034		while (*chptr) {
4035		chptr2 = chptr;
4036		while (*chptr2 && *chptr2 != '[')
4037		chptr2++;
4038		if (!*chptr2)
4039		break;
4040
4041		/* yank off the numbers at the end */
4042		chptr2--;
4043		while (isdigit(*chptr2) && chptr2 > chptr)
4044		chptr2--;
4045		chptr2++;
4046		*chptr2 = '\0';
4047
4048		/* Better, now we need the /dev/ back. We're
4049		* done with everything before this point, so
4050		* we can just put the /dev/ part there.
4051		* There will always be room. */
4052		memcpy(chptr - 5, "/dev/", 5);
4053		rc = checkDeviceBootloader(chptr - 5, boot);
4054		if (rc != 2) {
4055		return rc;
4056		}
4057
4058		chptr = chptr2 + 1;
4059		/* skip the [11] bit */
4060		while (*chptr && !isspace(*chptr))
4061		chptr++;
4062		/* and move to the next one */
4063		while (*chptr && isspace(*chptr))
4064		chptr++;
4065		}
4066
4067		/*  we're good to go */
4068		return 2;
4069		}
4070
4071		chptr = end + 1;
4072		}
4073
4074		fprintf(stderr,
4075		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4076		mdDev);
4077		return 0;
4078		}
4079
4080		int checkForLilo(struct grubConfig *config)
4081		{
4082		int fd;
4083		unsigned char boot[512];
4084		struct singleLine *line;
4085
4086		for (line = config->theLines; line; line = line->next)
4087		if (line->type == LT_BOOT)
4088		break;
4089
4090		if (!line) {
4091		fprintf(stderr,
4092		_
4093		("grubby: no boot line found in lilo configuration\n"));
4094		return 1;
4095		}
4096
4097		if (line->numElements != 2)
4098		return 1;
4099
4100		fd = open("/boot/boot.b", O_RDONLY);
4101		if (fd < 0) {
4102		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4103		"/boot/boot.b", strerror(errno));
4104		return 1;
4105		}
4106
4107		if (read(fd, boot, 512) != 512) {
4108		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4109		"/boot/boot.b", strerror(errno));
4110		return 1;
4111		}
4112		close(fd);
4113
4114		if (!strncmp("/dev/md", line->elements[1].item, 7))
4115		return checkLiloOnRaid(line->elements[1].item, boot);
4116
4117		return checkDeviceBootloader(line->elements[1].item, boot);
4118		}
4119
4120		int checkForGrub2(struct grubConfig *config)
4121		{
4122		if (!access("/etc/grub.d/", R_OK))
4123		return 2;
4124
4125		return 1;
4126		}
4127
4128		int checkForGrub(struct grubConfig *config)
4129		{
4130		int fd;
4131		unsigned char bootSect[512];
4132		char *boot;
4133		int onSuse = isSuseSystem();
4134
4135		if (onSuse) {
4136		if (parseSuseGrubConf(NULL, &boot))
4137		return 0;
4138		} else {
4139		if (parseSysconfigGrub(NULL, &boot))
4140		return 0;
4141		}
4142
4143		/* assume grub is not installed -- not an error condition */
4144		if (!boot)
4145		return 0;
4146
4147		fd = open("/boot/grub/stage1", O_RDONLY);
4148		if (fd < 0)
4149		/* this doesn't exist if grub hasn't been installed */
4150		return 0;
4151
4152		if (read(fd, bootSect, 512) != 512) {
4153		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4154		"/boot/grub/stage1", strerror(errno));
4155		close(fd);
4156		return 1;
4157		}
4158		close(fd);
4159
4160		/* The more elaborate checks do not work on SuSE. The checks done
4161		* seem to be reasonble (at least for now), so just return success
4162		*/
4163		if (onSuse)
4164		return 2;
4165
4166		return checkDeviceBootloader(boot, bootSect);
4167		}
4168
4169		int checkForExtLinux(struct grubConfig *config)
4170		{
4171		int fd;
4172		unsigned char bootSect[512];
4173		char *boot;
4174		char executable[] = "/boot/extlinux/extlinux";
4175
4176		printf("entered: checkForExtLinux()\n");
4177
4178		if (parseSysconfigGrub(NULL, &boot))
4179		return 0;
4180
4181		/* assume grub is not installed -- not an error condition */
4182		if (!boot)
4183		return 0;
4184
4185		fd = open(executable, O_RDONLY);
4186		if (fd < 0)
4187		/* this doesn't exist if grub hasn't been installed */
4188		return 0;
4189
4190		if (read(fd, bootSect, 512) != 512) {
4191		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4192		executable, strerror(errno));
4193		return 1;
4194		}
4195		close(fd);
4196
4197		return checkDeviceBootloader(boot, bootSect);
4198		}
4199
4200		int checkForYaboot(struct grubConfig *config)
4201		{
4202		/*
4203		* This is a simplistic check that we consider good enough for own puporses
4204		*
4205		* If we were to properly check if yaboot is *installed* we'd need to:
4206		* 1) get the system boot device (LT_BOOT)
4207		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4208		*    the content on the boot device
4209		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4210		* 4) check again if binary and boot device contents match
4211		*/
4212		if (!access("/etc/yaboot.conf", R_OK))
4213		return 2;
4214
4215		return 1;
4216		}
4217
4218		int checkForElilo(struct grubConfig *config)
4219		{
4220		if (!access("/etc/elilo.conf", R_OK))
4221		return 2;
4222
4223		return 1;
4224		}
4225
4226		static char *getRootSpecifier(char *str)
4227		{
4228		char *idx, *rootspec = NULL;
4229
4230		if (*str == '(') {
4231		idx = rootspec = strdup(str);
4232		while (*idx && (*idx != ')') && (!isspace(*idx)))
4233		idx++;
4234		*(++idx) = '\0';
4235		}
4236		return rootspec;
4237		}
4238
4239		static char *getInitrdVal(struct grubConfig *config,
4240		const char *prefix, struct singleLine *tmplLine,
4241		const char *newKernelInitrd,
4242		const char **extraInitrds, int extraInitrdCount)
4243		{
4244		char *initrdVal, *end;
4245		int i;
4246		size_t totalSize;
4247		size_t prefixLen;
4248		char separatorChar;
4249
4250		prefixLen = strlen(prefix);
4251		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4252
4253		for (i = 0; i < extraInitrdCount; i++) {
4254		totalSize += sizeof(separatorChar);
4255		totalSize += strlen(extraInitrds[i]) - prefixLen;
4256		}
4257
4258		initrdVal = end = malloc(totalSize);
4259
4260		end = stpcpy(end, newKernelInitrd + prefixLen);
4261
4262		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4263		for (i = 0; i < extraInitrdCount; i++) {
4264		const char *extraInitrd;
4265		int j;
4266
4267		extraInitrd = extraInitrds[i] + prefixLen;
4268		/* Don't add entries that are already there */
4269		if (tmplLine != NULL) {
4270		for (j = 2; j < tmplLine->numElements; j++)
4271		if (strcmp
4272		(extraInitrd,
4273		tmplLine->elements[j].item) == 0)
4274		break;
4275
4276		if (j != tmplLine->numElements)
4277		continue;
4278		}
4279
4280		*end++ = separatorChar;
4281		end = stpcpy(end, extraInitrd);
4282		}
4283
4284		return initrdVal;
4285		}
4286
4287		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4288		const char *prefix,
4289		const char *newKernelPath, const char *newKernelTitle,
4290		const char *newKernelArgs, const char *newKernelInitrd,
4291		const char **extraInitrds, int extraInitrdCount,
4292		const char *newMBKernel, const char *newMBKernelArgs,
4293		const char *newDevTreePath, int newIndex)
4294		{
4295		struct singleEntry *new, *entry, *prev = NULL;
4296		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4297		int needs;
4298		char *indexs;
4299		char *chptr;
4300		int rc;
4301
4302		if (!newKernelPath)
4303		return 0;
4304
4305		rc = asprintf(&indexs, "%d", newIndex);
4306		if (rc < 0)
4307		return 1;
4308
4309		/* if the newKernelTitle is too long silently munge it into something
4310		* we can live with. truncating is first check, then we'll just mess with
4311		* it until it looks better */
4312		if (config->cfi->maxTitleLength &&
4313		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4314		char *buf = alloca(config->cfi->maxTitleLength + 7);
4315		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4316		int i = 1;
4317
4318		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4319		newKernelTitle);
4320		while (findEntryByPath(config, buf, NULL, NULL)) {
4321		sprintf(numBuf, "%d", i++);
4322		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4323		}
4324
4325		newKernelTitle = buf + 6;
4326		}
4327
4328		new = malloc(sizeof(*new));
4329		new->skip = 0;
4330		new->multiboot = 0;
4331		new->lines = NULL;
4332		entry = config->entries;
4333		for (unsigned int i = 0; i < newIndex; i++) {
4334		if (!entry)
4335		break;
4336		prev = entry;
4337		entry = entry->next;
4338		}
4339		new->next = entry;
4340
4341		if (prev)
4342		prev->next = new;
4343		else
4344		config->entries = new;
4345
4346		/* copy/update from the template */
4347		needs = NEED_KERNEL | NEED_TITLE;
4348		if (newKernelInitrd)
4349		needs |= NEED_INITRD;
4350		if (newMBKernel) {
4351		needs |= NEED_MB;
4352		new->multiboot = 1;
4353		}
4354		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4355		needs |= NEED_DEVTREE;
4356
4357		if (template) {
4358		for (masterLine = template->lines;
4359		masterLine && (tmplLine = lineDup(masterLine));
4360		lineFree(tmplLine), masterLine = masterLine->next) {
4361		dbgPrintf("addNewKernel processing %d\n",
4362		tmplLine->type);
4363
4364		/* skip comments */
4365		chptr = tmplLine->indent;
4366		while (*chptr && isspace(*chptr))
4367		chptr++;
4368		if (*chptr == '#')
4369		continue;
4370
4371		if (iskernel(tmplLine->type)
4372		&& tmplLine->numElements >= 2) {
4373		if (!template->multiboot && (needs & NEED_MB)) {
4374		/* it's not a multiboot template and
4375		* this is the kernel line.  Try to
4376		* be intelligent about inserting the
4377		* hypervisor at the same time.
4378		*/
4379		if (config->cfi->mbHyperFirst) {
4380		/* insert the hypervisor first */
4381		newLine =
4382		addLine(new, config->cfi,
4383		LT_HYPER,
4384		tmplLine->indent,
4385		newMBKernel +
4386		strlen(prefix));
4387		/* set up for adding the
4388		* kernel line */
4389		free(tmplLine->indent);
4390		tmplLine->indent =
4391		strdup(config->
4392		secondaryIndent);
4393		needs &= ~NEED_MB;
4394		}
4395		if (needs & NEED_KERNEL) {
4396		/* use addLineTmpl to
4397		* preserve line elements,
4398		* otherwise we could just
4399		* call addLine.
4400		* Unfortunately this means
4401		* making some changes to the
4402		* template such as the
4403		* indent change above and
4404		* the type change below.
4405		*/
4406		struct keywordTypes *mbm_kw =
4407		getKeywordByType
4408		(LT_MBMODULE, config->cfi);
4409		if (mbm_kw) {
4410		tmplLine->type =
4411		LT_MBMODULE;
4412		free(tmplLine->
4413		elements[0].item);
4414		tmplLine->elements[0].
4415		item =
4416		strdup(mbm_kw->key);
4417		}
4418		newLine =
4419		addLineTmpl(new, tmplLine,
4420		newLine,
4421		newKernelPath +
4422		strlen(prefix),
4423		config->cfi);
4424		needs &= ~NEED_KERNEL;
4425		}
4426		if (needs & NEED_MB) { /* !mbHyperFirst */
4427		newLine =
4428		addLine(new, config->cfi,
4429		LT_HYPER,
4430		config->
4431		secondaryIndent,
4432		newMBKernel +
4433		strlen(prefix));
4434		needs &= ~NEED_MB;
4435		}
4436		} else if (needs & NEED_KERNEL) {
4437		newLine =
4438		addLineTmpl(new, tmplLine, newLine,
4439		newKernelPath +
4440		strlen(prefix),
4441		config->cfi);
4442		needs &= ~NEED_KERNEL;
4443		}
4444
4445		} else if (tmplLine->type == LT_HYPER &&
4446		tmplLine->numElements >= 2) {
4447		if (needs & NEED_MB) {
4448		newLine =
4449		addLineTmpl(new, tmplLine, newLine,
4450		newMBKernel +
4451		strlen(prefix),
4452		config->cfi);
4453		needs &= ~NEED_MB;
4454		}
4455
4456		} else if (tmplLine->type == LT_MBMODULE &&
4457		tmplLine->numElements >= 2) {
4458		if (new->multiboot) {
4459		if (needs & NEED_KERNEL) {
4460		newLine =
4461		addLineTmpl(new, tmplLine,
4462		newLine,
4463		newKernelPath +
4464		strlen(prefix),
4465		config->cfi);
4466		needs &= ~NEED_KERNEL;
4467		} else if (config->cfi->mbInitRdIsModule
4468		&& (needs & NEED_INITRD)) {
4469		char *initrdVal;
4470		initrdVal =
4471		getInitrdVal(config, prefix,
4472		tmplLine,
4473		newKernelInitrd,
4474		extraInitrds,
4475		extraInitrdCount);
4476		newLine =
4477		addLineTmpl(new, tmplLine,
4478		newLine,
4479		initrdVal,
4480		config->cfi);
4481		free(initrdVal);
4482		needs &= ~NEED_INITRD;
4483		}
4484		} else if (needs & NEED_KERNEL) {
4485		/* template is multi but new is not,
4486		* insert the kernel in the first
4487		* module slot
4488		*/
4489		tmplLine->type =
4490		preferredLineType(LT_KERNEL,
4491		config->cfi);
4492		free(tmplLine->elements[0].item);
4493		tmplLine->elements[0].item =
4494		strdup(getKeywordByType
4495		(tmplLine->type,
4496		config->cfi)->key);
4497		newLine =
4498		addLineTmpl(new, tmplLine, newLine,
4499		newKernelPath +
4500		strlen(prefix),
4501		config->cfi);
4502		needs &= ~NEED_KERNEL;
4503		} else if (needs & NEED_INITRD) {
4504		char *initrdVal;
4505		/* template is multi but new is not,
4506		* insert the initrd in the second
4507		* module slot
4508		*/
4509		tmplLine->type =
4510		preferredLineType(LT_INITRD,
4511		config->cfi);
4512		free(tmplLine->elements[0].item);
4513		tmplLine->elements[0].item =
4514		strdup(getKeywordByType
4515		(tmplLine->type,
4516		config->cfi)->key);
4517		initrdVal =
4518		getInitrdVal(config, prefix,
4519		tmplLine,
4520		newKernelInitrd,
4521		extraInitrds,
4522		extraInitrdCount);
4523		newLine =
4524		addLineTmpl(new, tmplLine, newLine,
4525		initrdVal, config->cfi);
4526		free(initrdVal);
4527		needs &= ~NEED_INITRD;
4528		}
4529
4530		} else if (isinitrd(tmplLine->type)
4531		&& tmplLine->numElements >= 2) {
4532		if (needs & NEED_INITRD && new->multiboot
4533		&& !template->multiboot
4534		&& config->cfi->mbInitRdIsModule) {
4535		/* make sure we don't insert the
4536		* module initrd before the module
4537		* kernel... if we don't do it here,
4538		* it will be inserted following the
4539		* template.
4540		*/
4541		if (!needs & NEED_KERNEL) {
4542		char *initrdVal;
4543
4544		initrdVal =
4545		getInitrdVal(config, prefix,
4546		tmplLine,
4547		newKernelInitrd,
4548		extraInitrds,
4549		extraInitrdCount);
4550		newLine =
4551		addLine(new, config->cfi,
4552		LT_MBMODULE,
4553		config->
4554		secondaryIndent,
4555		initrdVal);
4556		free(initrdVal);
4557		needs &= ~NEED_INITRD;
4558		}
4559		} else if (needs & NEED_INITRD) {
4560		char *initrdVal;
4561		initrdVal =
4562		getInitrdVal(config, prefix,
4563		tmplLine,
4564		newKernelInitrd,
4565		extraInitrds,
4566		extraInitrdCount);
4567		newLine =
4568		addLineTmpl(new, tmplLine, newLine,
4569		initrdVal, config->cfi);
4570		free(initrdVal);
4571		needs &= ~NEED_INITRD;
4572		}
4573
4574		} else if (tmplLine->type == LT_MENUENTRY &&
4575		(needs & NEED_TITLE)) {
4576		requote(tmplLine, config->cfi);
4577		char *nkt = malloc(strlen(newKernelTitle) + 3);
4578		strcpy(nkt, "'");
4579		strcat(nkt, newKernelTitle);
4580		strcat(nkt, "'");
4581		newLine =
4582		addLineTmpl(new, tmplLine, newLine, nkt,
4583		config->cfi);
4584		free(nkt);
4585		needs &= ~NEED_TITLE;
4586		} else if (tmplLine->type == LT_TITLE &&
4587		(needs & NEED_TITLE)) {
4588		if (tmplLine->numElements >= 2) {
4589		newLine =
4590		addLineTmpl(new, tmplLine, newLine,
4591		newKernelTitle,
4592		config->cfi);
4593		needs &= ~NEED_TITLE;
4594		} else if (tmplLine->numElements == 1 &&
4595		config->cfi->titleBracketed) {
4596		/* addLineTmpl doesn't handle
4597		* titleBracketed */
4598		newLine =
4599		addLine(new, config->cfi, LT_TITLE,
4600		tmplLine->indent,
4601		newKernelTitle);
4602		needs &= ~NEED_TITLE;
4603		}
4604		} else if (tmplLine->type == LT_ECHO) {
4605		requote(tmplLine, config->cfi);
4606		static const char *prefix = "'Loading ";
4607		if (tmplLine->numElements > 1 &&
4608		strstr(tmplLine->elements[1].item, prefix)
4609		&& masterLine->next
4610		&& iskernel(masterLine->next->type)) {
4611		char *newTitle =
4612		malloc(strlen(prefix) +
4613		strlen(newKernelTitle) + 2);
4614
4615		strcpy(newTitle, prefix);
4616		strcat(newTitle, newKernelTitle);
4617		strcat(newTitle, "'");
4618		newLine =
4619		addLine(new, config->cfi, LT_ECHO,
4620		tmplLine->indent, newTitle);
4621		free(newTitle);
4622		} else {
4623		/* pass through other lines from the
4624		* template */
4625		newLine =
4626		addLineTmpl(new, tmplLine, newLine,
4627		NULL, config->cfi);
4628		}
4629		} else if (tmplLine->type == LT_DEVTREE &&
4630		tmplLine->numElements == 2
4631		&& newDevTreePath) {
4632		newLine =
4633		addLineTmpl(new, tmplLine, newLine,
4634		newDevTreePath + strlen(prefix),
4635		config->cfi);
4636		needs &= ~NEED_DEVTREE;
4637		} else if (tmplLine->type == LT_ENTRY_END
4638		&& needs & NEED_DEVTREE) {
4639		const char *ndtp = newDevTreePath;
4640		if (!strncmp
4641		(newDevTreePath, prefix, strlen(prefix)))
4642		ndtp += strlen(prefix);
4643		newLine = addLine(new, config->cfi, LT_DEVTREE,
4644		config->secondaryIndent,
4645		ndtp);
4646		needs &= ~NEED_DEVTREE;
4647		newLine =
4648		addLineTmpl(new, tmplLine, newLine, NULL,
4649		config->cfi);
4650		} else {
4651		/* pass through other lines from the template */
4652		newLine =
4653		addLineTmpl(new, tmplLine, newLine, NULL,
4654		config->cfi);
4655		}
4656		}
4657
4658		} else {
4659		/* don't have a template, so start the entry with the
4660		* appropriate starting line
4661		*/
4662		switch (config->cfi->entryStart) {
4663		case LT_KERNEL:
4664		case LT_KERNEL_EFI:
4665		case LT_KERNEL_16:
4666		if (new->multiboot && config->cfi->mbHyperFirst) {
4667		/* fall through to LT_HYPER */
4668		} else {
4669		newLine = addLine(new, config->cfi,
4670		preferredLineType(LT_KERNEL,
4671		config->
4672		cfi),
4673		config->primaryIndent,
4674		newKernelPath +
4675		strlen(prefix));
4676		needs &= ~NEED_KERNEL;
4677		break;
4678		}
4679
4680		case LT_HYPER:
4681		newLine = addLine(new, config->cfi, LT_HYPER,
4682		config->primaryIndent,
4683		newMBKernel + strlen(prefix));
4684		needs &= ~NEED_MB;
4685		break;
4686
4687		case LT_MENUENTRY:{
4688		char *nkt = malloc(strlen(newKernelTitle) + 3);
4689		strcpy(nkt, "'");
4690		strcat(nkt, newKernelTitle);
4691		strcat(nkt, "'");
4692		newLine =
4693		addLine(new, config->cfi, LT_MENUENTRY,
4694		config->primaryIndent, nkt);
4695		free(nkt);
4696		needs &= ~NEED_TITLE;
4697		needs |= NEED_END;
4698		break;
4699		}
4700		case LT_TITLE:
4701		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4702		char *templabel;
4703		int x = 0, y = 0;
4704
4705		templabel = strdup(newKernelTitle);
4706		while (templabel[x]) {
4707		if (templabel[x] == ' ') {
4708		y = x;
4709		while (templabel[y]) {
4710		templabel[y] =
4711		templabel[y + 1];
4712		y++;
4713		}
4714		}
4715		x++;
4716		}
4717		newLine = addLine(new, config->cfi, LT_TITLE,
4718		config->primaryIndent,
4719		templabel);
4720		free(templabel);
4721		} else {
4722		newLine = addLine(new, config->cfi, LT_TITLE,
4723		config->primaryIndent,
4724		newKernelTitle);
4725		}
4726		needs &= ~NEED_TITLE;
4727		break;
4728
4729		default:
4730		abort();
4731		}
4732		}
4733
4734		struct singleLine *endLine = NULL;
4735		endLine = getLineByType(LT_ENTRY_END, new->lines);
4736		if (endLine) {
4737		removeLine(new, endLine);
4738		needs |= NEED_END;
4739		}
4740
4741		/* add the remainder of the lines, i.e. those that either
4742		* weren't present in the template, or in the case of no template,
4743		* all the lines following the entryStart.
4744		*/
4745		if (needs & NEED_TITLE) {
4746		newLine = addLine(new, config->cfi, LT_TITLE,
4747		config->secondaryIndent, newKernelTitle);
4748		needs &= ~NEED_TITLE;
4749		}
4750		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4751		newLine = addLine(new, config->cfi, LT_HYPER,
4752		config->secondaryIndent,
4753		newMBKernel + strlen(prefix));
4754		needs &= ~NEED_MB;
4755		}
4756		if (needs & NEED_KERNEL) {
4757		newLine = addLine(new, config->cfi,
4758		(new->multiboot
4759		&& getKeywordByType(LT_MBMODULE,
4760		config->cfi))
4761		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4762		config->
4763		cfi),
4764		config->secondaryIndent,
4765		newKernelPath + strlen(prefix));
4766		needs &= ~NEED_KERNEL;
4767		}
4768		if (needs & NEED_MB) {
4769		newLine = addLine(new, config->cfi, LT_HYPER,
4770		config->secondaryIndent,
4771		newMBKernel + strlen(prefix));
4772		needs &= ~NEED_MB;
4773		}
4774		if (needs & NEED_INITRD) {
4775		char *initrdVal;
4776		initrdVal =
4777		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4778		extraInitrds, extraInitrdCount);
4779		newLine =
4780		addLine(new, config->cfi,
4781		(new->multiboot
4782		&& getKeywordByType(LT_MBMODULE, config->cfi))
4783		? LT_MBMODULE : preferredLineType(LT_INITRD,
4784		config->cfi),
4785		config->secondaryIndent, initrdVal);
4786		free(initrdVal);
4787		needs &= ~NEED_INITRD;
4788		}
4789		if (needs & NEED_DEVTREE) {
4790		newLine = addLine(new, config->cfi, LT_DEVTREE,
4791		config->secondaryIndent, newDevTreePath);
4792		needs &= ~NEED_DEVTREE;
4793		}
4794
4795		/* NEEDS_END must be last on bootloaders that need it... */
4796		if (needs & NEED_END) {
4797		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4798		config->secondaryIndent, NULL);
4799		needs &= ~NEED_END;
4800		}
4801
4802		if (needs) {
4803		printf(_("grubby: needs=%d, aborting\n"), needs);
4804		abort();
4805		}
4806
4807		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4808		newMBKernelArgs, NULL)) {
4809		config->isModified = 1;
4810		return 1;
4811		}
4812
4813		return 0;
4814		}
4815
4816		int main(int argc, const char **argv)
4817		{
4818		poptContext optCon;
4819		const char *grubConfig = NULL;
4820		char *outputFile = NULL;
4821		int arg = 0;
4822		int flags = 0;
4823		int badImageOkay = 0;
4824		int configureGrub2 = 0;
4825		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4826		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4827		int configureExtLinux = 0;
4828		int bootloaderProbe = 0;
4829		int extraInitrdCount = 0;
4830		char *updateKernelPath = NULL;
4831		char *newKernelPath = NULL;
4832		char *removeKernelPath = NULL;
4833		char *newKernelArgs = NULL;
4834		char *newKernelInitrd = NULL;
4835		char *newKernelTitle = NULL;
4836		char *newDevTreePath = NULL;
4837		char *newMBKernel = NULL;
4838		char *newMBKernelArgs = NULL;
4839		int newIndex = 0;
4840		char *removeMBKernelArgs = NULL;
4841		char *removeMBKernel = NULL;
4842		char *bootPrefix = NULL;
4843		char *defaultKernel = NULL;
4844		char *removeArgs = NULL;
4845		char *kernelInfo = NULL;
4846		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4847		char *envPath = NULL;
4848		const char *chptr = NULL;
4849		struct configFileInfo *cfi = NULL;
4850		struct grubConfig *config;
4851		struct singleEntry *template = NULL;
4852		int copyDefault = 0, makeDefault = 0;
4853		int displayDefault = 0;
4854		int displayDefaultIndex = 0;
4855		int displayDefaultTitle = 0;
4856		int defaultIndex = -1;
4857		struct poptOption options[] = {
4858		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4859		_("add an entry for the specified kernel"), _("kernel-path")},
4860		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4861		_("add an entry for the specified multiboot kernel"), NULL},
4862		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4863		_("default arguments for the new kernel or new arguments for "
4864		"kernel being updated"), _("args")},
4865		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4866		_("default arguments for the new multiboot kernel or "
4867		"new arguments for multiboot kernel being updated"), NULL},
4868		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4869		_
4870		("don't sanity check images in boot entries (for testing only)"),
4871		NULL},
4872		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4873		_
4874		("filesystem which contains /boot directory (for testing only)"),
4875		_("bootfs")},
4876		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4877		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4878		_("check which bootloader is installed on boot sector")},
4879		#endif
4880		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4881		_("path to grub config file to update (\"-\" for stdin)"),
4882		_("path")},
4883		{"copy-default", 0, 0, &copyDefault, 0,
4884		_("use the default boot entry as a template for the new entry "
4885		"being added; if the default is not a linux image, or if "
4886		"the kernel referenced by the default image does not exist, "
4887		"the first linux entry whose kernel does exist is used as the "
4888		"template"), NULL},
4889		{"debug", 0, 0, &debug, 0,
4890		_("print debugging information for failures")},
4891		{"default-kernel", 0, 0, &displayDefault, 0,
4892		_("display the path of the default kernel")},
4893		{"default-index", 0, 0, &displayDefaultIndex, 0,
4894		_("display the index of the default kernel")},
4895		{"default-title", 0, 0, &displayDefaultTitle, 0,
4896		_("display the title of the default kernel")},
4897		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898		_("device tree file for new stanza"), _("dtb-path")},
4899		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4900		_("device tree directory for new stanza"), _("dtb-path")},
4901		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4902		_("configure elilo bootloader")},
4903		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4904		_("force grub2 stanzas to use efi")},
4905		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4906		_("path for environment data"),
4907		_("path")},
4908		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4909		_("configure extlinux bootloader (from syslinux)")},
4910		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4911		_("configure grub bootloader")},
4912		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4913		_("configure grub2 bootloader")},
4914		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4915		_("display boot information for specified kernel"),
4916		_("kernel-path")},
4917		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4918		_("initrd image for the new kernel"), _("initrd-path")},
4919		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4920		_
4921		("auxiliary initrd image for things other than the new kernel"),
4922		_("initrd-path")},
4923		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4924		_("configure lilo bootloader")},
4925		{"make-default", 0, 0, &makeDefault, 0,
4926		_("make the newly added entry the default boot entry"), NULL},
4927		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4928		_("path to output updated config file (\"-\" for stdout)"),
4929		_("path")},
4930		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4931		_("remove kernel arguments"), NULL},
4932		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4933		_("remove multiboot kernel arguments"), NULL},
4934		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4935		_("remove all entries for the specified kernel"),
4936		_("kernel-path")},
4937		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4938		_("remove all entries for the specified multiboot kernel"),
4939		NULL},
4940		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4941		_("make the first entry referencing the specified kernel "
4942		"the default"), _("kernel-path")},
4943		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4944		_("make the given entry index the default entry"),
4945		_("entry-index")},
4946		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4947		_("use the given index when creating a new entry"),
4948		_("entry-index")},
4949		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4950		_("configure silo bootloader")},
4951		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4952		_("title to use for the new kernel entry"), _("entry-title")},
4953		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4954		_("updated information for the specified kernel"),
4955		_("kernel-path")},
4956		{"version", 'v', 0, NULL, 'v',
4957		_("print the version of this program and exit"), NULL},
4958		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4959		_("configure yaboot bootloader")},
4960		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4961		_("configure zipl bootloader")},
4962		POPT_AUTOHELP {0, 0, 0, 0, 0}
4963		};
4964
4965		useextlinuxmenu = 0;
4966
4967		int i = 0;
4968		for (int j = 1; j < argc; j++)
4969		i += strlen(argv[j]) + 1;
4970		saved_command_line = malloc(i);
4971		if (!saved_command_line) {
4972		fprintf(stderr, "grubby: %m\n");
4973		exit(1);
4974		}
4975		saved_command_line[0] = '\0';
4976		for (int j = 1; j < argc; j++) {
4977		strcat(saved_command_line, argv[j]);
4978		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4979		}
4980
4981		optCon = poptGetContext("grubby", argc, argv, options, 0);
4982		poptReadDefaultConfig(optCon, 1);
4983
4984		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4985		switch (arg) {
4986		case 'v':
4987		printf("grubby version %s\n", VERSION);
4988		exit(0);
4989		break;
4990		case 'i':
4991		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4992		extraInitrds[extraInitrdCount++] =
4993		strdup(poptGetOptArg(optCon));
4994		} else {
4995		fprintf(stderr,
4996		_
4997		("grubby: extra initrd maximum is %d\n"),
4998		extraInitrdCount);
4999		return 1;
5000		}
5001		break;
5002		}
5003		}
5004
5005		if (arg < -1) {
5006		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5007		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5008		poptStrerror(arg));
5009		return 1;
5010		}
5011
5012		if ((chptr = poptGetArg(optCon))) {
5013		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5014		return 1;
5015		}
5016
5017		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5018		configureYaboot + configureSilo + configureZipl +
5019		configureExtLinux) > 1) {
5020		fprintf(stderr,
5021		_("grubby: cannot specify multiple bootloaders\n"));
5022		return 1;
5023		} else if (bootloaderProbe && grubConfig) {
5024		fprintf(stderr,
5025		_
5026		("grubby: cannot specify config file with --bootloader-probe\n"));
5027		return 1;
5028		} else if (configureGrub2) {
5029		cfi = &grub2ConfigType;
5030		if (envPath)
5031		cfi->envFile = envPath;
5032		} else if (configureLilo) {
5033		cfi = &liloConfigType;
5034		} else if (configureGrub) {
5035		cfi = &grubConfigType;
5036		} else if (configureELilo) {
5037		cfi = &eliloConfigType;
5038		} else if (configureYaboot) {
5039		cfi = &yabootConfigType;
5040		} else if (configureSilo) {
5041		cfi = &siloConfigType;
5042		} else if (configureZipl) {
5043		cfi = &ziplConfigType;
5044		} else if (configureExtLinux) {
5045		cfi = &extlinuxConfigType;
5046		useextlinuxmenu = 1;
5047		}
5048
5049		if (!cfi) {
5050		if (grub2FindConfig(&grub2ConfigType)) {
5051		cfi = &grub2ConfigType;
5052		if (envPath)
5053		cfi->envFile = envPath;
5054		} else
5055		#ifdef __ia64__
5056		cfi = &eliloConfigType;
5057		#elif __powerpc__
5058		cfi = &yabootConfigType;
5059		#elif __sparc__
5060		cfi = &siloConfigType;
5061		#elif __s390__
5062		cfi = &ziplConfigType;
5063		#elif __s390x__
5064		cfi = &ziplConfigtype;
5065		#else
5066		cfi = &grubConfigType;
5067		#endif
5068		}
5069
5070		if (!grubConfig) {
5071		if (cfi->findConfig)
5072		grubConfig = cfi->findConfig(cfi);
5073		if (!grubConfig)
5074		grubConfig = cfi->defaultConfig;
5075		}
5076
5077		if (bootloaderProbe && (displayDefault || kernelInfo ||
5078		newKernelPath || removeKernelPath || makeDefault
5079		|| defaultKernel || displayDefaultIndex
5080		|| displayDefaultTitle
5081		|| (defaultIndex >= 0))) {
5082		fprintf(stderr,
5083		_("grubby: --bootloader-probe may not be used with "
5084		"specified option"));
5085		return 1;
5086		}
5087
5088		if ((displayDefault || kernelInfo) && (newKernelPath ||
5089		removeKernelPath)) {
5090		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5091		"be used when adding or removing kernels\n"));
5092		return 1;
5093		}
5094
5095		if (newKernelPath && !newKernelTitle) {
5096		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5097		return 1;
5098		} else if (!newKernelPath && (copyDefault ||
5099		(newKernelInitrd && !updateKernelPath) ||
5100		makeDefault || extraInitrdCount > 0)) {
5101		fprintf(stderr, _("grubby: kernel path expected\n"));
5102		return 1;
5103		}
5104
5105		if (newKernelPath && updateKernelPath) {
5106		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5107		"not be used together"));
5108		return 1;
5109		}
5110
5111		if (makeDefault && defaultKernel) {
5112		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5113		"may not be used together\n"));
5114		return 1;
5115		} else if (defaultKernel && removeKernelPath &&
5116		!strcmp(defaultKernel, removeKernelPath)) {
5117		fprintf(stderr,
5118		_("grubby: cannot make removed kernel the default\n"));
5119		return 1;
5120		} else if (defaultKernel && newKernelPath &&
5121		!strcmp(defaultKernel, newKernelPath)) {
5122		makeDefault = 1;
5123		defaultKernel = NULL;
5124		} else if (defaultKernel && (defaultIndex >= 0)) {
5125		fprintf(stderr,
5126		_("grubby: --set-default and --set-default-index "
5127		"may not be used together\n"));
5128		return 1;
5129		}
5130
5131		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5132		fprintf(stderr,
5133		_("grubby: output file must be specified if stdin "
5134		"is used\n"));
5135		return 1;
5136		}
5137
5138		if (!removeKernelPath && !newKernelPath && !displayDefault
5139		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5140		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5141		&& !displayDefaultTitle && (defaultIndex == -1)) {
5142		fprintf(stderr, _("grubby: no action specified\n"));
5143		return 1;
5144		}
5145
5146		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5147
5148		if (cfi->needsBootPrefix) {
5149		if (!bootPrefix) {
5150		bootPrefix = findBootPrefix();
5151		if (!bootPrefix)
5152		return 1;
5153		} else {
5154		/* this shouldn't end with a / */
5155		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5156		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5157		}
5158		} else {
5159		bootPrefix = "";
5160		}
5161
5162		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5163		fprintf(stderr,
5164		_("grubby: %s doesn't allow multiple initrds\n"),
5165		cfi->defaultConfig);
5166		return 1;
5167		}
5168
5169		if (bootloaderProbe) {
5170		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5171		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5172
5173		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5174		if (grub2config) {
5175		gconfig = readConfig(grub2config, &grub2ConfigType);
5176		if (!gconfig)
5177		gr2c = 1;
5178		else
5179		gr2c = checkForGrub2(gconfig);
5180		}
5181
5182		const char *grubconfig = grubFindConfig(&grubConfigType);
5183		if (!access(grubconfig, F_OK)) {
5184		gconfig = readConfig(grubconfig, &grubConfigType);
5185		if (!gconfig)
5186		grc = 1;
5187		else
5188		grc = checkForGrub(gconfig);
5189		}
5190
5191		if (!access(liloConfigType.defaultConfig, F_OK)) {
5192		lconfig =
5193		readConfig(liloConfigType.defaultConfig,
5194		&liloConfigType);
5195		if (!lconfig)
5196		lrc = 1;
5197		else
5198		lrc = checkForLilo(lconfig);
5199		}
5200
5201		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5202		econfig = readConfig(eliloConfigType.defaultConfig,
5203		&eliloConfigType);
5204		if (!econfig)
5205		erc = 1;
5206		else
5207		erc = checkForElilo(econfig);
5208		}
5209
5210		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5211		lconfig =
5212		readConfig(extlinuxConfigType.defaultConfig,
5213		&extlinuxConfigType);
5214		if (!lconfig)
5215		extrc = 1;
5216		else
5217		extrc = checkForExtLinux(lconfig);
5218		}
5219
5220		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5221		yconfig = readConfig(yabootConfigType.defaultConfig,
5222		&yabootConfigType);
5223		if (!yconfig)
5224		yrc = 1;
5225		else
5226		yrc = checkForYaboot(yconfig);
5227		}
5228
5229		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5230		|| erc == 1)
5231		return 1;
5232
5233		if (lrc == 2)
5234		printf("lilo\n");
5235		if (gr2c == 2)
5236		printf("grub2\n");
5237		if (grc == 2)
5238		printf("grub\n");
5239		if (extrc == 2)
5240		printf("extlinux\n");
5241		if (yrc == 2)
5242		printf("yaboot\n");
5243		if (erc == 2)
5244		printf("elilo\n");
5245
5246		return 0;
5247		}
5248
5249		if (grubConfig == NULL) {
5250		printf("Could not find bootloader configuration file.\n");
5251		exit(1);
5252		}
5253
5254		config = readConfig(grubConfig, cfi);
5255		if (!config)
5256		return 1;
5257
5258		if (displayDefault) {
5259		struct singleLine *line;
5260		struct singleEntry *entry;
5261		char *rootspec;
5262
5263		if (config->defaultImage == NO_DEFAULT_ENTRY)
5264		return 0;
5265		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5266		cfi->defaultIsSaved)
5267		config->defaultImage = FIRST_ENTRY_INDEX;
5268		entry = findEntryByIndex(config, config->defaultImage);
5269		if (!entry)
5270		return 0;
5271		if (!suitableImage(entry, bootPrefix, 0, flags))
5272		return 0;
5273
5274		line =
5275		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5276		LT_KERNEL_16, entry->lines);
5277		if (!line)
5278		return 0;
5279
5280		rootspec = getRootSpecifier(line->elements[1].item);
5281		printf("%s%s\n", bootPrefix, line->elements[1].item +
5282		((rootspec != NULL) ? strlen(rootspec) : 0));
5283
5284		return 0;
5285
5286		} else if (displayDefaultTitle) {
5287		struct singleLine *line;
5288		struct singleEntry *entry;
5289
5290		if (config->defaultImage == NO_DEFAULT_ENTRY)
5291		return 0;
5292		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5293		cfi->defaultIsSaved)
5294		config->defaultImage = FIRST_ENTRY_INDEX;
5295		entry = findEntryByIndex(config, config->defaultImage);
5296		if (!entry)
5297		return 0;
5298
5299		if (!configureGrub2) {
5300		char *title;
5301		line = getLineByType(LT_TITLE, entry->lines);
5302		if (!line)
5303		return 0;
5304		title = extractTitle(config, line);
5305		if (!title)
5306		return 0;
5307		printf("%s\n", title);
5308		free(title);
5309		} else {
5310		char *title;
5311
5312		dbgPrintf
5313		("This is GRUB2, default title is embeded in menuentry\n");
5314		line = getLineByType(LT_MENUENTRY, entry->lines);
5315		if (!line)
5316		return 0;
5317		title = grub2ExtractTitle(line);
5318		if (title)
5319		printf("%s\n", title);
5320		}
5321		return 0;
5322
5323		} else if (displayDefaultIndex) {
5324		if (config->defaultImage == NO_DEFAULT_ENTRY)
5325		return 0;
5326		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5327		cfi->defaultIsSaved)
5328		config->defaultImage = FIRST_ENTRY_INDEX;
5329		printf("%i\n", config->defaultImage);
5330		return 0;
5331
5332		} else if (kernelInfo)
5333		return displayInfo(config, kernelInfo, bootPrefix);
5334
5335		if (copyDefault) {
5336		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5337		if (!template)
5338		return 1;
5339		}
5340
5341		markRemovedImage(config, removeKernelPath, bootPrefix);
5342		markRemovedImage(config, removeMBKernel, bootPrefix);
5343		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5344		makeDefault, bootPrefix, flags, defaultIndex,
5345		newIndex);
5346		setFallbackImage(config, newKernelPath != NULL);
5347		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5348		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5349		return 1;
5350		if (updateKernelPath && newKernelInitrd) {
5351		if (newMBKernel) {
5352		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5353		bootPrefix, newKernelInitrd,
5354		newKernelTitle))
5355		return 1;
5356		} else {
5357		if (updateInitrd(config, updateKernelPath, bootPrefix,
5358		newKernelInitrd, newKernelTitle))
5359		return 1;
5360		}
5361		}
5362		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5363		newKernelTitle, newKernelArgs, newKernelInitrd,
5364		(const char **)extraInitrds, extraInitrdCount,
5365		newMBKernel, newMBKernelArgs, newDevTreePath,
5366		newIndex))
5367		return 1;
5368
5369		if (numEntries(config) == 0) {
5370		fprintf(stderr,
5371		_("grubby: doing this would leave no kernel entries. "
5372		"Not writing out new config.\n"));
5373		return 1;
5374		}
5375
5376	if (!outputFile)	if (!outputFile)
5377	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5378
5379	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5380	}	}

---

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Legend: Removed from v.1722   changed lines   Added in v.3026