Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1750 by niro, Sat Feb 18 01:09:51 2012 UTC	revision 3018 by niro, Tue Jun 27 14:37:30 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#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. */	}
	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
	dbgPrintf("found\n");
	return grub_cfg;
	}
296
297	dbgPrintf("not found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return configFiles[i];	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	int sizeOfSingleLine(struct singleLine * line) {	static char *shellEscape(const char *s)
341	int i;	{
342	int count = 0;	int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	for (i = 0; i < line->numElements; i++) {	char *ret = calloc(l + 1, sizeof(*ret));
345	int indentSize = 0;	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	count = count + strlen(line->elements[i].item);	static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359	indentSize = strlen(line->elements[i].indent);	if ((s[l - 1] == '\'' && s[0] == '\'')
360	if (indentSize > 0)	|| (s[l - 1] == '"' && s[0] == '"')) {
361	count = count + indentSize;	memmove(s, s + 1, l - 2);
362	else	s[l - 2] = '\0';
363	/* be extra safe and add room for whitespaces */	}
364	count = count + 1;	}
	}
365
366	/* room for trailing terminator */	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	count = count + 1;	{
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	return count;	/* 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	char *grub2ExtractTitle(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	char * current;	{
400	char * current_indent;	int count = 0;
	int current_len;
	int current_indent_len;
	int i;
401
402	/* bail out if line does not start with menuentry */	for (int i = 0; i < line->numElements; i++) {
403	if (strcmp(line->elements[0].item, "menuentry"))	int indentSize = 0;
	return NULL;
404
405	i = 1;	count = count + strlen(line->elements[i].item);
	current = line->elements[i].item;
	current_len = strlen(current);
406
407	/* if second word is quoted, strip the quotes and return single word */	indentSize = strlen(line->elements[i].indent);
408	if ((*current == '\'') && (*(current + current_len - 1) == '\'')) {	if (indentSize > 0)
409	char *tmp;	count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415	tmp = strdup(current);	/* room for trailing terminator */
416	*(tmp + current_len - 1) = '\0';	count = count + 1;
	return ++tmp;
	}
417
418	/* if no quotes, return second word verbatim */	return count;
419	if (*current != '\'') {	}
420	return current;
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	/* second element start with a quote, so we have to find the element	char *grub2ExtractTitle(struct singleLine *line)
441	* whose last character is also quote (assuming it's the closing one) */	{
442	if (*current == '\'') {	char *current;
443	int resultMaxSize;	char *current_indent;
444	char * result;	int current_len;
445		int current_indent_len;
446	resultMaxSize = sizeOfSingleLine(line);	int i;
447	result = malloc(resultMaxSize);
448	snprintf(result, resultMaxSize, "%s", ++current);	/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452	i++;	i = 1;
	for (; i < line->numElements; ++i) {
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (*(current + current_len - 1) != '\'') {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462	}	return NULL;
463	}	tmp[strlen(tmp) - 1] = '\0';
464	return result;	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	return NULL;	i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496		}
497		return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 1,	.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	};	};
685
686	blkid_cache blkid;	blkid_cache blkid;
687
688	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
689	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
690	const char * path, const char * prefix,	const char *path, const char *prefix,
691	int * index);	int *index);
692	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
693	static void lineInit(struct singleLine * line);	int *index);
694	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
695	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
696	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
697	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
698	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
699	struct configFileInfo * cfi);	struct configFileInfo *cfi);
700	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
701	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
703	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
704	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
705	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
706	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
707	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
708	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
709	struct configFileInfo * cfi);	struct configFileInfo *cfi);
710	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
711	struct singleLine * line);	struct configFileInfo *cfi);
712	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
713	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
714	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
715	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
716	const char * val,	struct singleLine *tmplLine,
717	struct configFileInfo * cfi);	struct singleLine *prevLine,
718	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
719	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
720	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
721	const char * val);	enum lineType_e type, char *defaultIndent,
722		const char *val);
723
724	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
725	#ifdef __GNUC__	#ifdef __GNUC__
726	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
727	#else	#else
728	;	;
729	#endif	#endif
730
731	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
732	char *buf = NULL;	{
733	char c;	char *buf = NULL;
734	va_list args;	char c;
735	size_t size = 0;	va_list args;
736	va_start(args, format);	size_t size = 0;
737		va_start(args, format);
738	/* XXX requires C99 vsnprintf behavior */
739	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
740	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
741	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
742	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
743	}	abort();
744		}
745
746	va_end(args);	va_end(args);
747	va_start(args, format);	va_start(args, format);
748
749	buf = malloc(size);	buf = malloc(size);
750	if (buf == NULL)	if (buf == NULL)
751	return NULL;	return NULL;
752	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
753	va_end (args);	va_end(args);
754
755	return buf;	return buf;
756	}	}
757
758	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
759	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
760	struct keywordTypes * kw;	{
761	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
762	if (kw->type == type)	int ll = strlen(label);
763	return kw;	int rc;
764		int (*snc)(const char *s1, const char *s2, size_t n) =
765		case_insensitive ? strncasecmp : strncmp;
766		int (*sc)(const char *s1, const char *s2) =
767		case_insensitive ? strcasecmp : strcmp;
768
769		rc = snc(kw->key, label, kwl);
770		if (rc)
771		return rc;
772
773		for (int i = kwl; i < ll; i++) {
774		if (isspace(label[i]))
775		return 0;
776		if (kw->separatorChar && label[i] == kw->separatorChar)
777		return 0;
778		else if (kw->nextChar && label[i] == kw->nextChar)
779		return 0;
780		return sc(kw->key+kwl, label+kwl);
781	}	}
782	return NULL;	return 0;
783	}	}
784
785	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
786	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
787	if (kt)	{
788	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
789	return "unknown";	switch (type) {
790		case LT_KERNEL:
791		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
792		case LT_INITRD:
793		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
794		default:
795		return type;
796		}
797		#if defined(__i386__) || defined(__x86_64__)
798		} else if (cfi == &grub2ConfigType) {
799		switch (type) {
800		case LT_KERNEL:
801		return LT_KERNEL_16;
802		case LT_INITRD:
803		return LT_INITRD_16;
804		default:
805		return type;
806		}
807		#endif
808		}
809		return type;
810	}	}
811
812	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
813	if (!blkid)	struct configFileInfo *cfi)
814	blkid_get_cache(&blkid, NULL);	{
815		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
816		if (kw->type == type)
817		return kw;
818		}
819		return NULL;
820		}
821
822	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
823		{
824		struct keywordTypes *kt = getKeywordByType(type, cfi);
825		if (kt)
826		return kt->key;
827		return "unknown";
828	}	}
829
830	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
831	if (!blkid)	{
832	blkid_get_cache(&blkid, NULL);	if (!blkid)
833		blkid_get_cache(&blkid, NULL);
834
835	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
836	}	}
837
838	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
839	struct configFileInfo * cfi) {	{
840	struct keywordTypes * kw;	if (!blkid)
841	for (kw = cfi->keywords; kw->key; kw++) {	blkid_get_cache(&blkid, NULL);
	if (!strcmp(keyword, kw->key))
	return kw->type;
	}
	return LT_UNKNOWN;
	}
842
843	static struct singleLine * getLineByType(enum lineType_e type,	return blkid_get_tag_value(blkid, "UUID", device);
	struct singleLine * line) {
	dbgPrintf("getLineByType(%d): ", type);
	for (; line; line = line->next) {
	dbgPrintf("%d:%s ", line->type,
	line->numElements ? line->elements[0].item : "(empty)");
	if (line->type & type) break;
	}
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
844	}	}
845
846	static int isBracketedTitle(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
847	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct configFileInfo *cfi)
848	int len = strlen(line->elements[0].item);	{
849	if (*(line->elements[0].item + len - 1) == ']') {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
850	/* FIXME: this is a hack... */	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
851	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return kw->type;
852	return 1;	}
853	}	return LT_UNKNOWN;
	}
	}
	return 0;
854	}	}
855
856	static int isEntryStart(struct singleLine * line,	static struct singleLine *getLineByType(enum lineType_e type,
857	struct configFileInfo * cfi) {	struct singleLine *line)
858	return line->type == cfi->entryStart || line->type == LT_OTHER ||	{
859	(cfi->titleBracketed && isBracketedTitle(line));	dbgPrintf("getLineByType(%d): ", type);
860		for (; line; line = line->next) {
861		dbgPrintf("%d:%s ", line->type,
862		line->numElements ? line->elements[0].
863		item : "(empty)");
864		if (line->type & type)
865		break;
866		}
867		dbgPrintf(line ? "\n" : " (failed)\n");
868		return line;
869	}	}
870
871	/* extract the title from within brackets (for zipl) */	static int isBracketedTitle(struct singleLine *line)
872	static char * extractTitle(struct singleLine * line) {	{
873	/* bracketed title... let's extract it (leaks a byte) */	if (line->numElements == 1 && *line->elements[0].item == '[') {
874	char * title;	int len = strlen(line->elements[0].item);
875	title = strdup(line->elements[0].item);	if (*(line->elements[0].item + len - 1) == ']') {
876	title++;	/* FIXME: this is a hack... */
877	*(title + strlen(title) - 1) = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
878	return title;	return 1;
879	}	}
880		}
881	static int readFile(int fd, char ** bufPtr) {	}
882	int alloced = 0, size = 0, i = 0;	return 0;
883	char * buf = NULL;	}
	do {
	size += i;
	if ((size + 1024) > alloced) {
	alloced += 4096;
	buf = realloc(buf, alloced + 1);
	}
	} 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';
884
885	*bufPtr = buf;	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
886		{
887		return line->type == cfi->entryStart || line->type == LT_OTHER ||
888		(cfi->titleBracketed && isBracketedTitle(line));
889		}
890
891	return 0;	/* extract the title from within brackets (for zipl) */
892		static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
893		{
894		/* bracketed title... let's extract it */
895		char *title = NULL;
896		if (line->type == LT_TITLE) {
897		char *tmp = line->elements[cfg->cfi->titlePosition].item;
898		if (cfg->cfi->titleBracketed) {
899		tmp++;
900		title = strdup(tmp);
901		*(title + strlen(title) - 1) = '\0';
902		} else {
903		title = strdup(tmp);
904		}
905		} else if (line->type == LT_MENUENTRY)
906		title = strdup(line->elements[1].item);
907		else
908		return NULL;
909		return title;
910	}	}
911
912	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
913	line->indent = NULL;	{
914	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
915	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);
	}
916
917	return newLine;	do {
918	}	size += i;
919		if ((size + 1024) > alloced) {
920		alloced += 4096;
921		buf = realloc(buf, alloced + 1);
922		}
923		} while ((i = read(fd, buf + size, 1024)) > 0);
924
925	static void lineFree(struct singleLine * line) {	if (i < 0) {
926	int i;	fprintf(stderr, _("error reading input: %s\n"),
927		strerror(errno));
928		free(buf);
929		return 1;
930		}
931
932	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
933		if (size == 0)
934		buf[size++] = '\n';
935		else if (buf[size - 1] != '\n')
936		buf[size++] = '\n';
937		buf[size] = '\0';
938
939	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
940
941	if (line->elements) free(line->elements);	return 0;
	lineInit(line);
942	}	}
943
944	static int lineWrite(FILE * out, struct singleLine * line,	static void lineInit(struct singleLine *line)
945	struct configFileInfo * cfi) {	{
946	int i;	line->type = LT_UNIDENTIFIED;
947		line->indent = NULL;
948		line->elements = NULL;
949		line->numElements = 0;
950		line->next = NULL;
951		}
952
953	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *lineDup(struct singleLine *line)
954		{
955		struct singleLine *newLine = malloc(sizeof(*newLine));
956
957	for (i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
958	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->next = NULL;
959	if (fputc('"', out) == EOF) return -1;	newLine->type = line->type;
960		newLine->numElements = line->numElements;
961		newLine->elements = malloc(sizeof(*newLine->elements) *
962		newLine->numElements);
963
964	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < newLine->numElements; i++) {
965	if (i < line->numElements - 1)	newLine->elements[i].indent = strdup(line->elements[i].indent);
966	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
967	}	}
968
969		return newLine;
970		}
971
972	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
973	if (fputc('"', out) == EOF) return -1;	{
974		if (line->indent)
975		free(line->indent);
976
977	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
978		free(line->elements[i].item);
979		free(line->elements[i].indent);
980		}
981
982	return 0;	if (line->elements)
983		free(line->elements);
984		lineInit(line);
985	}	}
986
987	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
988	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
989	struct configFileInfo * cfi) {	{
990	char * end;	if (fprintf(out, "%s", line->indent) == -1)
991	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
992
993	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
994		/* Need to handle this, because we strip the quotes from
995		* menuentry when read it. */
996		if (line->type == LT_MENUENTRY && i == 1) {
997		if (!isquote(*line->elements[i].item)) {
998		int substring = 0;
999		/* If the line contains nested quotes, we did
1000		* not strip the "interna" quotes and we must
1001		* use the right quotes again when writing
1002		* the updated file. */
1003		for (int j = i; j < line->numElements; j++) {
1004		if (strchr(line->elements[i].item, '\'')
1005		!= NULL) {
1006		substring = 1;
1007		fprintf(out, "\"%s\"",
1008		line->elements[i].item);
1009		break;
1010		}
1011		}
1012		if (!substring)
1013		fprintf(out, "\'%s\'",
1014		line->elements[i].item);
1015		} else {
1016		fprintf(out, "%s", line->elements[i].item);
1017		}
1018		fprintf(out, "%s", line->elements[i].indent);
1019
1020	end = strchr(start, '\n');	continue;
1021	*end = '\0';	}
	*bufPtr = end + 1;
1022
1023	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1024		if (fputc('"', out) == EOF)
1025		return -1;
1026
1027		if (fprintf(out, "%s", line->elements[i].item) == -1)
1028		return -1;
1029		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1030		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1031		return -1;
1032		}
1033
1034		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1035		if (fputc('"', out) == EOF)
1036		return -1;
1037
1038	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1039	start = chptr;	return -1;
1040
1041	while (start < end) {	return 0;
1042	/* we know !isspace(*start) */	}
1043
1044	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1045	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1046	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1047	sizeof(*line->elements) * elementsAlloced);	{
1048	}	char *end;
1049		char *start = *bufPtr;
1050		char *chptr;
1051		int elementsAlloced = 0;
1052		struct lineElement *element;
1053		int first = 1;
1054
1055	element = line->elements + line->numElements;	lineFree(line);
1056
1057	chptr = start;	end = strchr(start, '\n');
1058	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1059	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1060
1061	/* 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));
1062
1063	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1064	start = chptr;	start = chptr;
1065
1066	line->numElements++;	while (start < end) {
1067	first = 0;	/* we know !isspace(*start) */
	}
1068
1069	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1070	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1071	else {	line->elements = realloc(line->elements,
1072	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1073	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1074	/* 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);
1075
1076	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1077
1078	for (i = 0; i < line->numElements; i++) {	chptr = start;
1079	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1080	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1081	free(line->elements[i].item);	break;
1082	free(line->elements[i].indent);	chptr++;
1083	}	}
1084		if (line->type == LT_UNIDENTIFIED)
1085		line->type = getTypeByKeyword(start, cfi);
1086		element->item = strndup(start, chptr - start);
1087		start = chptr;
1088
1089		/* lilo actually accepts the pathological case of
1090		* append = " foo " */
1091		if (*start == '=')
1092		chptr = start + 1;
1093		else
1094		chptr = start;
1095
1096		do {
1097		for (; *chptr && isspace(*chptr); chptr++) ;
1098		if (*chptr == '=')
1099		chptr = chptr + 1;
1100		} while (isspace(*chptr));
1101
1102	line->type = LT_WHITESPACE;	element->indent = strndup(start, chptr - start);
1103	line->numElements = 0;	start = chptr;
	}
	} else {
	struct keywordTypes *kw;
1104
1105	kw = getKeywordByType(line->type, cfi);	line->numElements++;
1106		first = 0;
1107	/* space isn't the only separator, we need to split	}
	* elements up more
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
1108
1109	numNewElements = 0;	if (!line->numElements)
1110	p = line->elements[i].item;	line->type = LT_WHITESPACE;
1111	while (*p != '\0') {	else {
1112	if (*p == kw->separatorChar)	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1113	numNewElements++;	if (line->type == LT_UNKNOWN) {
1114	p++;	/* zipl does [title] instead of something reasonable
1115	}	* like all the other boot loaders.  kind of ugly */
1116	if (line->numElements + numNewElements >= elementsAlloced) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1117	elementsAlloced += numNewElements + 5;	line->type = LT_TITLE;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
1118	}	}
1119
1120	for (j = line->numElements; j > i; j--) {	/* this is awkward, but we need to be able to handle
1121	line->elements[j + numNewElements] = line->elements[j];	* keywords that begin with a # (specifically for
1122		* #boot in grub.conf), but still make comments lines
1123		* with no elements (everything stored in the indent
1124		*/
1125		if (*line->elements[0].item == '#') {
1126		char *fullLine;
1127		int len;
1128
1129		len = strlen(line->indent);
1130		for (int i = 0; i < line->numElements; i++)
1131		len += strlen(line->elements[i].item) +
1132		strlen(line->elements[i].indent);
1133
1134		fullLine = malloc(len + 1);
1135		strcpy(fullLine, line->indent);
1136		free(line->indent);
1137		line->indent = fullLine;
1138
1139		for (int i = 0; i < line->numElements; i++) {
1140		strcat(fullLine,
1141		line->elements[i].item);
1142		strcat(fullLine,
1143		line->elements[i].indent);
1144		free(line->elements[i].item);
1145		free(line->elements[i].indent);
1146		}
1147
1148		line->type = LT_WHITESPACE;
1149		line->numElements = 0;
1150	}	}
1151	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1152		struct keywordTypes *kw;
1153
1154	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1155
1156	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1157	if (*p == '\0') {	* elements up more
1158	break;	*/
1159	}	if (!isspace(kw->separatorChar)) {
1160		char indent[2] = "";
1161		indent[0] = kw->separatorChar;
1162		for (int i = 1; i < line->numElements; i++) {
1163		char *p;
1164		int numNewElements;
1165
1166		numNewElements = 0;
1167		p = line->elements[i].item;
1168		while (*p != '\0') {
1169		if (*p == kw->separatorChar)
1170		numNewElements++;
1171		p++;
1172		}
1173		if (line->numElements +
1174		numNewElements >= elementsAlloced) {
1175		elementsAlloced +=
1176		numNewElements + 5;
1177		line->elements =
1178		realloc(line->elements,
1179		sizeof(*line->
1180		elements) *
1181		elementsAlloced);
1182		}
1183
1184	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1185	line->elements[i].indent = strdup(indent);	j--) {
1186	*p++ = '\0';	line->elements[j +
1187	i++;	numNewElements] =
1188	line->elements[i].item = strdup(p);	line->elements[j];
1189	line->elements[i].indent = strdup("");	}
1190	p = line->elements[i].item;	line->numElements += numNewElements;
1191
1192		p = line->elements[i].item;
1193		while (*p != '\0') {
1194
1195		while (*p != kw->separatorChar
1196		&& *p != '\0')
1197		p++;
1198		if (*p == '\0') {
1199		break;
1200		}
1201
1202		line->elements[i + 1].indent =
1203		line->elements[i].indent;
1204		line->elements[i].indent =
1205		strdup(indent);
1206		*p++ = '\0';
1207		i++;
1208		line->elements[i].item =
1209		strdup(p);
1210		}
1211		}
1212		}
1213		} else if (line->type == LT_SET_VARIABLE) {
1214		/* and if it's a "set blah=" we need to split it
1215		* yet a third way to avoid rhbz# XXX FIXME :/
1216		*/
1217		char *eq;
1218		int l;
1219		int numElements = line->numElements;
1220		struct lineElement *newElements;
1221		eq = strchr(line->elements[1].item, '=');
1222		if (!eq)
1223		return 0;
1224		l = eq - line->elements[1].item;
1225		if (eq[1] != 0)
1226		numElements++;
1227		newElements = calloc(numElements,sizeof (*newElements));
1228		memcpy(&newElements[0], &line->elements[0],
1229		sizeof (newElements[0]));
1230		newElements[1].item =
1231		strndup(line->elements[1].item, l);
1232		newElements[1].indent = "=";
1233		*(eq++) = '\0';
1234		newElements[2].item = strdup(eq);
1235		free(line->elements[1].item);
1236		if (line->elements[1].indent)
1237		newElements[2].indent = line->elements[1].indent;
1238		for (int i = 2; i < line->numElements; i++) {
1239		newElements[i+1].item = line->elements[i].item;
1240		newElements[i+1].indent =
1241		line->elements[i].indent;
1242	}	}
1243	}	free(line->elements);
1244		line->elements = newElements;
1245		line->numElements = numElements;
1246	}	}
1247	}	}
	}
1248
1249	return 0;	return 0;
1250	}	}
1251
1252	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1253	struct configFileInfo * cfi) {	{
1254	int in;	int i;
1255	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1256	int rc;	if (s[i] < '0' || s[i] > '9')
1257	int sawEntry = 0;	return 0;
1258	int movedLine = 0;	return i;
1259	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int i, len;
	char * buf;
	if (!strcmp(inName, "-")) {
	in = 0;
	} else {
	if ((in = open(inName, O_RDONLY)) < 0) {
	fprintf(stderr, _("error opening %s for read: %s\n"),
	inName, strerror(errno));
	return NULL;
	}
	}
1260
1261	rc = readFile(in, &incoming);	static struct grubConfig *readConfig(const char *inName,
1262	close(in);	struct configFileInfo *cfi)
1263	if (rc) return NULL;	{
1264		int in;
1265	head = incoming;	char *incoming = NULL, *head;
1266	cfg = malloc(sizeof(*cfg));	int rc;
1267	cfg->primaryIndent = strdup("");	int sawEntry = 0;
1268	cfg->secondaryIndent = strdup("\t");	int movedLine = 0;
1269	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	struct grubConfig *cfg;
1270	cfg->cfi = cfi;	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1271	cfg->theLines = NULL;	char *end;
1272	cfg->entries = NULL;	struct singleEntry *entry = NULL;
1273	cfg->fallbackImage = 0;	int len;
1274		char *buf;
1275	/* copy everything we have */
1276	while (*head) {	if (inName == NULL) {
1277	line = malloc(sizeof(*line));	printf("Could not find bootloader configuration\n");
1278	lineInit(line);	exit(1);
1279		} else if (!strcmp(inName, "-")) {
1280		in = 0;
1281		} else {
1282		if ((in = open(inName, O_RDONLY)) < 0) {
1283		fprintf(stderr, _("error opening %s for read: %s\n"),
1284		inName, strerror(errno));
1285		return NULL;
1286		}
1287		}
1288
1289	if (getNextLine(&head, line, cfi)) {	rc = readFile(in, &incoming);
1290	free(line);	close(in);
1291	/* XXX memory leak of everything in cfg */	if (rc)
1292	return NULL;	return NULL;
1293	}
1294		head = incoming;
1295	if (!sawEntry && line->numElements) {	cfg = malloc(sizeof(*cfg));
1296	free(cfg->primaryIndent);	cfg->primaryIndent = strdup("");
1297	cfg->primaryIndent = strdup(line->indent);	cfg->secondaryIndent = strdup("\t");
1298	} else if (line->numElements) {	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1299	free(cfg->secondaryIndent);	cfg->cfi = cfi;
1300	cfg->secondaryIndent = strdup(line->indent);	cfg->theLines = NULL;
1301	}	cfg->entries = NULL;
1302		cfg->fallbackImage = 0;
1303	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1304	sawEntry = 1;	/* copy everything we have */
1305	if (!entry) {	while (*head) {
1306	cfg->entries = malloc(sizeof(*entry));	line = malloc(sizeof(*line));
1307	entry = cfg->entries;	lineInit(line);
1308	} else {
1309	entry->next = malloc(sizeof(*entry));	if (getNextLine(&head, line, cfi)) {
1310	entry = entry->next;	free(line);
1311	}	/* XXX memory leak of everything in cfg */
1312		return NULL;
1313		}
1314
1315	entry->skip = 0;	if (!sawEntry && line->numElements) {
1316	entry->multiboot = 0;	free(cfg->primaryIndent);
1317	entry->lines = NULL;	cfg->primaryIndent = strdup(line->indent);
1318	entry->next = NULL;	} else if (line->numElements) {
1319	}	free(cfg->secondaryIndent);
1320		cfg->secondaryIndent = strdup(line->indent);
1321	if (line->type == LT_SET_VARIABLE) {	}
	int i;
	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';
1322
1323	for (i = 1; i < line->numElements; i++) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1324	strcat(buf, line->elements[i].item);	sawEntry = 1;
1325	free(line->elements[i].item);	if (!entry) {
1326		cfg->entries = malloc(sizeof(*entry));
1327		entry = cfg->entries;
1328		} else {
1329		entry->next = malloc(sizeof(*entry));
1330		entry = entry->next;
1331		}
1332
1333	if ((i + 1) != line->numElements) {	entry->skip = 0;
1334	strcat(buf, line->elements[i].indent);	entry->multiboot = 0;
1335	free(line->elements[i].indent);	entry->lines = NULL;
1336	}	entry->next = NULL;
1337	}	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (*line->elements[1].item == '"')
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	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;
1338
1339	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1340	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1341	entry->lines = line;	line->numElements);
1342	else	dbgPrintf("%s", line->indent);
1343	last->next = line;	for (int i = 0; i < line->numElements; i++)
1344	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1345		line->elements[i].indent);
1346	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1347	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1348	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1349	sawEntry = 0;	if (kwType && line->numElements == 3
1350	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1351	if (!cfg->theLines)	&& !is_special_grub2_variable(
1352	cfg->theLines = line;	line->elements[2].item)) {
1353	else	dbgPrintf("Line sets default config\n");
1354	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1355	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1356	}	}
1357		} else if (iskernel(line->type)) {
1358		/* if by some freak chance this is multiboot and the
1359		* "module" lines came earlier in the template, make
1360		* sure to use LT_HYPER instead of LT_KERNEL now
1361		*/
1362		if (entry && entry->multiboot)
1363		line->type = LT_HYPER;
1364
1365	last = line;	} else if (line->type == LT_MBMODULE) {
1366	}	/* go back and fix the LT_KERNEL line to indicate
1367		* LT_HYPER instead, now that we know this is a
1368		* multiboot entry.  This only applies to grub, but
1369		* that's the only place we should find LT_MBMODULE
1370		* lines anyway.
1371		*/
1372		for (struct singleLine * l = entry->lines; l;
1373		l = l->next) {
1374		if (l->type == LT_HYPER)
1375		break;
1376		else if (iskernel(l->type)) {
1377		l->type = LT_HYPER;
1378		break;
1379		}
1380		}
1381		entry->multiboot = 1;
1382
1383	free(incoming);	} else if (line->type == LT_HYPER) {
1384		entry->multiboot = 1;
1385
1386	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1387	if (defaultLine) {	cfg->fallbackImage =
1388	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1389	cfi->defaultSupportSaved &&	if (*end)
1390	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1391	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1392	} else if (cfi->defaultIsVariable) {	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1393	char *value = defaultLine->elements[2].item;	|| (line->type == LT_TITLE
1394	while (*value && (*value == '"' || *value == '\'' ||	&& line->numElements > 1)) {
1395	*value == ' ' || *value == '\t'))	/* make the title/default a single argument (undoing
1396	value++;	* our parsing) */
1397	cfg->defaultImage = strtol(value, &end, 10);	len = 0;
1398	while (*end && (*end == '"' || *end == '\'' ||	for (int i = 1; i < line->numElements; i++) {
1399	*end == ' ' || *end == '\t'))	len += strlen(line->elements[i].item);
1400	end++;	len += strlen(line->elements[i].indent);
1401	if (*end) cfg->defaultImage = -1;	}
1402	} else if (cfi->defaultSupportSaved &&	buf = malloc(len + 1);
1403	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	*buf = '\0';
	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;
	}
1404
1405	if (entry){	for (int i = 1; i < line->numElements; i++) {
1406	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1407	}else{	free(line->elements[i].item);
1408	cfg->defaultImage = -1;
1409	}	if ((i + 1) != line->numElements) {
1410	}	strcat(buf, line->elements[i].indent);
1411	} else {	free(line->elements[i].indent);
1412	cfg->defaultImage = 0;	}
1413	}	}
1414
1415	return cfg;	line->elements[1].indent =
1416	}	line->elements[line->numElements - 1].indent;
1417		line->elements[1].item = buf;
1418		line->numElements = 2;
1419		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1420		/* let --remove-kernel="TITLE=what" work */
1421		len = 0;
1422		char *extras;
1423		char *title;
1424		/* initially unseen value */
1425		char quote_char = '\0';
1426
1427		for (int i = 1; i < line->numElements; i++) {
1428		len += strlen(line->elements[i].item);
1429		len += strlen(line->elements[i].indent);
1430		}
1431		buf = malloc(len + 1);
1432		*buf = '\0';
1433
1434	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1435	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1436	struct singleEntry * entry;	*extras = '\0';
1437	struct singleLine * line;
1438	int i;	/* get title. */
1439		for (int i = 0; i < line->numElements; i++) {
1440	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1441		(line->elements[i].item, "menuentry"))
1442	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1443	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1444	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)	&& quote_char == '\0') {
1445	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1446	else if (cfg->defaultImage > -1) {	quote_char = *line->elements[i].item;
1447	if (cfg->cfi->defaultIsIndex) {	title = line->elements[i].item + 1;
1448	if (cfg->cfi->defaultIsVariable) {	} else {
1449	fprintf(out, "%sset default=\"%d\"\n", indent,	title = line->elements[i].item;
1450	cfg->defaultImage);	}
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1451
1452	entry = cfg->entries;	len = strlen(title);
1453	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1454		strncat(buf, title, len - 1);
1455		break;
1456		} else {
1457		strcat(buf, title);
1458		strcat(buf, line->elements[i].indent);
1459		}
1460		}
1461
1462	i = 0;	/* get extras */
1463	while (entry && i < image) {	int count = 0;
1464	entry = entry->next;	quote_char = '\0';
1465		for (int i = 0; i < line->numElements; i++) {
1466		if (count >= 2) {
1467		strcat(extras, line->elements[i].item);
1468		strcat(extras,
1469		line->elements[i].indent);
1470		}
1471
1472	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1473	i++;	(line->elements[i].item, "menuentry"))
1474	}	continue;
1475
1476		/* count ' or ", there should be two in menuentry line. */
1477		if (isquote(*line->elements[i].item)
1478		&& quote_char == '\0') {
1479		/* ensure we properly pair off quotes */
1480		quote_char = *line->elements[i].item;
1481		count++;
1482		}
1483
1484	if (!entry) return;	len = strlen(line->elements[i].item);
1485
1486	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1487		quote_char)
1488		count++;
1489
1490	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1491	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1492	line->elements[1].item);	line->elements[1].indent =
1493	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1494	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1495	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1496	extractTitle(line));	line->elements[line->numElements - 2].indent;
1497	}	line->elements[2].item = extras;
1498	}	line->numElements = 3;
1499	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1500	}	/* Strip off any " which may be present; they'll be
1501		* put back on write. This is one of the few (the
1502		* only?) places that grubby canonicalizes the output
1503		*/
1504		if (line->numElements >= 2) {
1505		int last, len;
1506
1507	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1508	const char * prefix) {	memmove(line->elements[1].item,
1509	FILE * out;	line->elements[1].item + 1,
1510	struct singleLine * line;	strlen(line->elements[1].item +
1511	struct singleEntry * entry;	1) + 1);
1512	char * tmpOutName;
1513	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1514	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1515	int i;	if (isquote(line->elements[last].item[len]))
1516		line->elements[last].item[len] = '\0';
1517	if (!strcmp(outName, "-")) {	}
1518	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;
	}
	}
	}
1519
1520	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1521	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1522	while (line) {	defaultLine = line;
1523	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} 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;
	}
	}
1524
1525	line = line->next;	/* If we find a generic config option which should live at the
1526	}	top of the file, move it there. Old versions of grubby were
1527		probably responsible for putting new images in the wrong
1528		place in front of it anyway. */
1529		if (sawEntry && line->type == LT_GENERIC) {
1530		struct singleLine **l = &cfg->theLines;
1531		struct singleLine **last_nonws = &cfg->theLines;
1532		while (*l) {
1533		if ((*l)->type != LT_WHITESPACE)
1534		last_nonws = &((*l)->next);
1535		l = &((*l)->next);
1536		}
1537		line->next = *last_nonws;
1538		*last_nonws = line;
1539		movedLine = 1;
1540		continue; /* without setting 'last' */
1541		}
1542
1543	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1544	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1545	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1546	}	&& last->type == LT_WHITESPACE) {
1547		lineFree(line);
1548		free(line);
1549		movedLine = 0;
1550		continue;
1551		}
1552		movedLine = 0;
1553
1554	i = 0;	if (sawEntry) {
1555	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1556	if (entry->skip) continue;	entry->lines = line;
1557		else
1558		last->next = line;
1559		dbgPrintf("readConfig added %s to %p\n",
1560		getKeyByType(line->type, cfi), entry);
1561
1562	line = entry->lines;	/* we could have seen this outside of an entry... if
1563	while (line) {	* so, we ignore it like any other line we don't grok
1564	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1565	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1566	tmpOutName, strerror(errno));	sawEntry = 0;
1567	fclose(out);	} else {
1568	unlink(tmpOutName);	if (!cfg->theLines)
1569	return 1;	cfg->theLines = line;
1570	}	else
1571	line = line->next;	last->next = line;
1572	}	dbgPrintf("readConfig added %s to cfg\n",
1573	}	getKeyByType(line->type, cfi));
1574		}
1575
1576	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1577	}	}
	}
1578
1579	return 0;	free(incoming);
	}
1580
1581	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1582	int i = 0;	if (defaultLine) {
1583	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1584		cfi->defaultSupportSaved &&
1585	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1586	while (entry) {	"\"${saved_entry}\"", 16)) {
1587	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1588	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1589	entry = entry->next;	if (cfg->cfi->getEnv) {
1590	}	char *defTitle =
1591	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1592	}	if (defTitle) {
1593		int index = 0;
1594		if (isnumber(defTitle)) {
1595		index = atoi(defTitle);
1596		entry =
1597		findEntryByIndex(cfg,
1598		index);
1599		} else {
1600		entry =
1601		findEntryByTitle(cfg,
1602		defTitle,
1603		&index);
1604		}
1605		if (entry)
1606		cfg->defaultImage = index;
1607		}
1608		}
1609		} else if (cfi->defaultIsVariable) {
1610		if (defaultLine->numElements == 2) {
1611		char *value = defaultLine->elements[1].item + 8;
1612		while (*value && (*value == '"' ||
1613		*value == '\'' ||
1614		*value == ' ' ||
1615		*value == '\t'))
1616		value++;
1617		cfg->defaultImage = strtol(value, &end, 10);
1618		while (*end && (*end == '"' || *end == '\'' ||
1619		*end == ' ' || *end == '\t'))
1620		end++;
1621		if (*end)
1622		cfg->defaultImage = NO_DEFAULT_ENTRY;
1623		} else if (defaultLine->numElements == 3) {
1624		char *value = defaultLine->elements[2].item;
1625		while (*value && (*value == '"' ||
1626		*value == '\'' ||
1627		*value == ' ' ||
1628		*value == '\t'))
1629		value++;
1630		cfg->defaultImage = strtol(value, &end, 10);
1631		while (*end && (*end == '"' || *end == '\'' ||
1632		*end == ' ' || *end == '\t'))
1633		end++;
1634		if (*end)
1635		cfg->defaultImage = NO_DEFAULT_ENTRY;
1636		}
1637		} else if (cfi->defaultSupportSaved &&
1638		!strncmp(defaultLine->elements[1].item, "saved",
1639		5)) {
1640		cfg->defaultImage = DEFAULT_SAVED;
1641		} else if (cfi->defaultIsIndex) {
1642		cfg->defaultImage =
1643		strtol(defaultLine->elements[1].item, &end, 10);
1644		if (*end)
1645		cfg->defaultImage = NO_DEFAULT_ENTRY;
1646		} else if (defaultLine->numElements >= 2) {
1647		int i = 0;
1648		while ((entry = findEntryByIndex(cfg, i))) {
1649		for (line = entry->lines; line;
1650		line = line->next)
1651		if (line->type == LT_TITLE)
1652		break;
1653
1654		if (!cfi->titleBracketed) {
1655		if (line && (line->numElements >= 2) &&
1656		!strcmp(defaultLine->elements[1].
1657		item,
1658		line->elements[1].item))
1659		break;
1660		} else if (line) {
1661		if (!strcmp
1662		(defaultLine->elements[1].item,
1663		extractTitle(cfg, line)))
1664		break;
1665		}
1666		i++;
1667		entry = NULL;
1668		}
1669
1670		if (entry) {
1671		cfg->defaultImage = i;
1672		} else {
1673		cfg->defaultImage = NO_DEFAULT_ENTRY;
1674		}
1675		}
1676		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1677		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1678		if (defTitle) {
1679		int index = 0;
1680		if (isnumber(defTitle)) {
1681		index = atoi(defTitle);
1682		entry = findEntryByIndex(cfg, index);
1683		} else {
1684		entry = findEntryByTitle(cfg, defTitle, &index);
1685		}
1686		if (entry)
1687		cfg->defaultImage = index;
1688		}
1689		} else {
1690		cfg->defaultImage = FIRST_ENTRY_INDEX;
1691		}
1692
1693		return cfg;
1694		}
1695
1696		static void writeDefault(FILE * out, char *indent,
1697		char *separator, struct grubConfig *cfg)
1698		{
1699		struct singleEntry *entry;
1700		struct singleLine *line;
1701		int i;
1702
1703		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1704		return;
1705
1706		if (cfg->defaultImage == DEFAULT_SAVED)
1707		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1708		else if (cfg->cfi->defaultIsSaved) {
1709		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1710		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1711		char *title;
1712		entry = findEntryByIndex(cfg, cfg->defaultImage);
1713		line = getLineByType(LT_MENUENTRY, entry->lines);
1714		if (!line)
1715		line = getLineByType(LT_TITLE, entry->lines);
1716		if (line) {
1717		title = extractTitle(cfg, line);
1718		if (title)
1719		cfg->cfi->setEnv(cfg->cfi,
1720		"saved_entry", title);
1721		}
1722		}
1723		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1724		if (cfg->cfi->defaultIsIndex) {
1725		if (cfg->cfi->defaultIsVariable) {
1726		fprintf(out, "%sset default=\"%d\"\n", indent,
1727		cfg->defaultImage);
1728		} else {
1729		fprintf(out, "%sdefault%s%d\n", indent,
1730		separator, cfg->defaultImage);
1731		}
1732		} else {
1733		int image = cfg->defaultImage;
1734
1735		entry = cfg->entries;
1736		while (entry && entry->skip)
1737		entry = entry->next;
1738
1739		i = 0;
1740		while (entry && i < image) {
1741		entry = entry->next;
1742
1743		while (entry && entry->skip)
1744		entry = entry->next;
1745		i++;
1746		}
1747
1748		if (!entry)
1749		return;
1750
1751		line = getLineByType(LT_TITLE, entry->lines);
1752
1753		if (line && line->numElements >= 2)
1754		fprintf(out, "%sdefault%s%s\n", indent,
1755		separator, line->elements[1].item);
1756		else if (line && (line->numElements == 1)
1757		&& cfg->cfi->titleBracketed) {
1758		char *title = extractTitle(cfg, line);
1759		if (title) {
1760		fprintf(out, "%sdefault%s%s\n", indent,
1761		separator, title);
1762		free(title);
1763		}
1764		}
1765		}
1766		}
1767		}
1768
1769		static int writeConfig(struct grubConfig *cfg, char *outName,
1770		const char *prefix)
1771		{
1772		FILE *out;
1773		struct singleLine *line;
1774		struct singleEntry *entry;
1775		char *tmpOutName;
1776		int needs = MAIN_DEFAULT;
1777		struct stat sb;
1778		int i;
1779
1780		if (!strcmp(outName, "-")) {
1781		out = stdout;
1782		tmpOutName = NULL;
1783		} else {
1784		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1785		char *buf;
1786		int len = 256;
1787		int rc;
1788
1789		/* most likely the symlink is relative, so change our
1790		directory to the dir of the symlink */
1791		char *dir = strdupa(outName);
1792		rc = chdir(dirname(dir));
1793		do {
1794		buf = alloca(len + 1);
1795		rc = readlink(basename(outName), buf, len);
1796		if (rc == len)
1797		len += 256;
1798		} while (rc == len);
1799
1800		if (rc < 0) {
1801		fprintf(stderr,
1802		_
1803		("grubby: error readlink link %s: %s\n"),
1804		outName, strerror(errno));
1805		return 1;
1806		}
1807
1808		outName = buf;
1809		outName[rc] = '\0';
1810		}
1811
1812		tmpOutName = alloca(strlen(outName) + 2);
1813		sprintf(tmpOutName, "%s-", outName);
1814		out = fopen(tmpOutName, "w");
1815		if (!out) {
1816		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1817		tmpOutName, strerror(errno));
1818		return 1;
1819		}
1820
1821		if (!stat(outName, &sb)) {
1822		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1823		fprintf(stderr,
1824		_
1825		("grubby: error setting perms on %s: %s\n"),
1826		tmpOutName, strerror(errno));
1827		fclose(out);
1828		unlink(tmpOutName);
1829		return 1;
1830		}
1831		}
1832		}
1833
1834		line = cfg->theLines;
1835		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1836		while (line) {
1837		if (line->type == LT_SET_VARIABLE && defaultKw &&
1838		line->numElements == 3 &&
1839		!strcmp(line->elements[1].item, defaultKw->key) &&
1840		!is_special_grub2_variable(line->elements[2].item)) {
1841		writeDefault(out, line->indent,
1842		line->elements[0].indent, cfg);
1843		needs &= ~MAIN_DEFAULT;
1844		} else if (line->type == LT_DEFAULT) {
1845		writeDefault(out, line->indent,
1846		line->elements[0].indent, cfg);
1847		needs &= ~MAIN_DEFAULT;
1848		} else if (line->type == LT_FALLBACK) {
1849		if (cfg->fallbackImage > -1)
1850		fprintf(out, "%s%s%s%d\n", line->indent,
1851		line->elements[0].item,
1852		line->elements[0].indent,
1853		cfg->fallbackImage);
1854		} else {
1855		if (lineWrite(out, line, cfg->cfi) == -1) {
1856		fprintf(stderr,
1857		_("grubby: error writing %s: %s\n"),
1858		tmpOutName, strerror(errno));
1859		fclose(out);
1860		unlink(tmpOutName);
1861		return 1;
1862		}
1863		}
1864
1865		line = line->next;
1866		}
1867
1868		if (needs & MAIN_DEFAULT) {
1869		writeDefault(out, cfg->primaryIndent, "=", cfg);
1870		needs &= ~MAIN_DEFAULT;
1871		}
1872
1873		i = 0;
1874		while ((entry = findEntryByIndex(cfg, i++))) {
1875		if (entry->skip)
1876		continue;
1877
1878		line = entry->lines;
1879		while (line) {
1880		if (lineWrite(out, line, cfg->cfi) == -1) {
1881		fprintf(stderr,
1882		_("grubby: error writing %s: %s\n"),
1883		tmpOutName, strerror(errno));
1884		fclose(out);
1885		unlink(tmpOutName);
1886		return 1;
1887		}
1888		line = line->next;
1889		}
1890		}
1891
1892		if (tmpOutName) {
1893		if (rename(tmpOutName, outName)) {
1894		fprintf(stderr,
1895		_("grubby: error moving %s to %s: %s\n"),
1896		tmpOutName, outName, strerror(errno));
1897		unlink(outName);
1898		return 1;
1899		}
1900		}
1901
1902		return 0;
1903		}
1904
1905		static int numEntries(struct grubConfig *cfg)
1906		{
1907		int i = 0;
1908		struct singleEntry *entry;
1909
1910		entry = cfg->entries;
1911		while (entry) {
1912		if (!entry->skip)
1913		i++;
1914		entry = entry->next;
1915		}
1916		return i;
1917		}
1918
1919	static char *findDiskForRoot()	static char *findDiskForRoot()
1920	{	{
1921	int fd;	int fd;
1922	char buf[65536];	char buf[65536];
1923	char *devname;	char *devname;
1924	char *chptr;	char *chptr;
1925	int rc;	int rc;
1926
1927		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1928		fprintf(stderr, "grubby: failed to open %s: %s\n",
1929		_PATH_MOUNTED, strerror(errno));
1930		return NULL;
1931		}
1932
1933		rc = read(fd, buf, sizeof(buf) - 1);
1934		if (rc <= 0) {
1935		fprintf(stderr, "grubby: failed to read %s: %s\n",
1936		_PATH_MOUNTED, strerror(errno));
1937		close(fd);
1938		return NULL;
1939		}
1940		close(fd);
1941		buf[rc] = '\0';
1942		chptr = buf;
1943
1944	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1945
1946	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1947	if (rc <= 0) {	devname = chptr;
1948	fprintf(stderr, "grubby: failed to read %s: %s\n",
1949	_PATH_MOUNTED, strerror(errno));	/*
1950	close(fd);	* The first column of a mtab entry is the device, but if the
1951	return NULL;	* entry is a special device it won't start with /, so move
1952	}	* on to the next line.
1953	close(fd);	*/
1954	buf[rc] = '\0';	if (*devname != '/') {
1955	chptr = buf;	chptr = strchr(chptr, '\n');
1956		if (chptr)
1957	while (chptr && chptr != buf+rc) {	chptr++;
1958	devname = chptr;	continue;
1959		}
1960	/*
1961	* The first column of a mtab entry is the device, but if the entry is a	/* Seek to the next space */
1962	* special device it won't start with /, so move on to the next line.	chptr = strchr(chptr, ' ');
1963	*/	if (!chptr) {
1964	if (*devname != '/') {	fprintf(stderr, "grubby: error parsing %s: %s\n",
1965	chptr = strchr(chptr, '\n');	_PATH_MOUNTED, strerror(errno));
1966	if (chptr)	return NULL;
1967	chptr++;	}
1968	continue;
1969	}	/*
1970		* The second column of a mtab entry is the mount point, we
1971	/* Seek to the next space */	* are looking for '/' obviously.
1972	chptr = strchr(chptr, ' ');	*/
1973	if (!chptr) {	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1974	fprintf(stderr, "grubby: error parsing %s: %s\n",	/* remember the last / entry in mtab */
1975	_PATH_MOUNTED, strerror(errno));	foundanswer = devname;
1976	return NULL;	}
1977	}
1978		/* Next line */
1979	/*	chptr = strchr(chptr, '\n');
1980	* The second column of a mtab entry is the mount point, we are looking	if (chptr)
1981	* for '/' obviously.	chptr++;
1982	*/	}
	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++;
	}
1983
1984	return NULL;	/* Return the last / entry found */
1985		if (foundanswer) {
1986		chptr = strchr(foundanswer, ' ');
1987		*chptr = '\0';
1988		return strdup(foundanswer);
1989		}
1990
1991		return NULL;
1992	}	}
1993
1994	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
1995	int i;	{
1996	struct singleLine * line;	int i;
1997		struct singleLine *line;
1998
1999		for (line = entry->lines; line; line = line->next) {
2000		log_message(f, "DBG: %s", line->indent);
2001		for (i = 0; i < line->numElements; i++) {
2002		/* Need to handle this, because we strip the quotes from
2003		* menuentry when read it. */
2004		if (line->type == LT_MENUENTRY && i == 1) {
2005		if (!isquote(*line->elements[i].item))
2006		log_message(f, "\'%s\'",
2007		line->elements[i].item);
2008		else
2009		log_message(f, "%s",
2010		line->elements[i].item);
2011		log_message(f, "%s", line->elements[i].indent);
2012
2013	for (line = entry->lines; line; line = line->next) {	continue;
2014	fprintf(stderr, "DBG: %s", line->indent);	}
2015	for (i = 0; i < line->numElements; i++) {
2016	fprintf(stderr, "%s%s",	log_message(f, "%s%s",
2017	line->elements[i].item, line->elements[i].indent);	line->elements[i].item,
2018		line->elements[i].indent);
2019		}
2020		log_message(f, "\n");
2021	}	}
	fprintf(stderr, "\n");
	}
2022	}	}
2023
2024	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2025		...)
2026	{	{
2027	va_list argp;	static int once;
2028		va_list argp, argq;
2029
2030	if (!debug)	va_start(argp, fmt);
	return;
2031
2032	va_start(argp, fmt);	va_copy(argq, argp);
2033	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2034	vfprintf(stderr, fmt, argp);	log_time(NULL);
2035	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2036	va_end(argp);	}
2037		log_message(NULL, "DBG: Image entry %s: ",
2038		okay ? "succeeded" : "failed");
2039		log_vmessage(NULL, fmt, argq);
2040
2041		printEntry(entry, NULL);
2042		va_end(argq);
2043
2044		if (!debug) {
2045		once = 1;
2046		va_end(argp);
2047		return;
2048		}
2049
2050		if (okay) {
2051		va_end(argp);
2052		return;
2053		}
2054
2055		if (!once)
2056		log_message(stderr, "DBG: command line: %s\n",
2057		saved_command_line);
2058		once = 1;
2059		fprintf(stderr, "DBG: Image entry failed: ");
2060		vfprintf(stderr, fmt, argp);
2061		printEntry(entry, stderr);
2062		va_end(argp);
2063	}	}
2064
2065	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1471  static int endswith(const char *s, char	Line 2075  static int endswith(const char *s, char
2075	return s[slen] == c;	return s[slen] == c;
2076	}	}
2077
2078	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2079	int skipRemoved, int flags) {	int skipRemoved, int flags)
2080	struct singleLine * line;	{
2081	char * fullName;	struct singleLine *line;
2082	int i;	char *fullName;
2083	char * dev;	int i;
2084	char * rootspec;	char *dev;
2085	char * rootdev;	char *rootspec;
2086		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2087
2088	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2089	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2090	notSuitablePrintf(entry, "no line found\n");	return 0;
2091	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2092
2093	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2094		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2095		entry->lines);
2096		if (!line) {
2097		notSuitablePrintf(entry, 0, "no line found\n");
2098		return 0;
2099		}
2100		if (line->numElements < 2) {
2101		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2102		line->numElements);
2103		return 0;
2104		}
2105
2106	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2107	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2108	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2109	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2110
2111	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2112	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2113		rootspec = getRootSpecifier(line->elements[1].item);
2114		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2115		int hasslash = endswith(bootPrefix, '/') ||
2116		beginswith(line->elements[1].item + rootspec_offset, '/');
2117		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2118		line->elements[1].item + rootspec_offset);
2119		if (access(fullName, R_OK)) {
2120		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2121		return 0;
2122		}
2123		for (i = 2; i < line->numElements; i++)
2124		if (!strncasecmp(line->elements[i].item, "root=", 5))
2125		break;
2126		if (i < line->numElements) {
2127		dev = line->elements[i].item + 5;
2128	} else {	} else {
2129	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2130	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2131	*/
2132	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2133		dev = line->elements[1].item;
2134	/* failed to find one */	} else {
2135	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2136	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2137	return 0;	* for the args, so check that too.
2138	}	*/
2139		line =
2140	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2141	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2142	if (i < line->numElements)
2143	dev = line->elements[i].item + 5;	/* failed to find one */
2144	else {	if (!line) {
2145	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2146	/* it failed too...  can't find root= */	return 0;
2147	return 0;	}
2148	}
2149		for (i = 1; i < line->numElements; i++)
2150		if (!strncasecmp
2151		(line->elements[i].item, "root=", 5))
2152		break;
2153		if (i < line->numElements)
2154		dev = line->elements[i].item + 5;
2155		else {
2156		notSuitablePrintf(entry, 0,
2157		"no root= entry found\n");
2158		/* it failed too...  can't find root= */
2159		return 0;
2160		}
2161		}
2162	}	}
	}
2163
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2164	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2165		if (!getpathbyspec(dev)) {
2166		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2167		dev);
2168		return 0;
2169		} else
2170		dev = getpathbyspec(dev);
2171
2172	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2173	if (!rootdev) {	if (!rootdev) {
2174	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2175	return 0;	return 0;
2176	}	}
2177
2178	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2179	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2180	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2181	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2182	return 0;	free(rootdev);
2183	}	return 0;
2184		}
2185
2186	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2187	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2188	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2189	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2190	return 0;	free(rootdev);
2191	}	return 0;
2192		}
2193
2194	free(rootdev);	free(rootdev);
2195		notSuitablePrintf(entry, 1, "\n");
2196
2197	return 1;	return 1;
2198	}	}
2199
2200	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2201	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2202	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2203	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2204	int * index) {	int *index)
2205	struct singleEntry * entry = NULL;	{
2206	struct singleLine * line;	struct singleEntry *entry = NULL;
2207	int i;	struct singleLine *line;
2208	char * chptr;	int i;
2209	char * rootspec = NULL;	char *chptr;
2210	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2211		enum lineType_e checkType = LT_KERNEL;
2212	if (isdigit(*kernel)) {
2213	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2214		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2215	i = 0;
2216	indexVars[i] = strtol(kernel, &chptr, 10);	i = 0;
2217	while (*chptr == ',') {	indexVars[i] = strtol(kernel, &chptr, 10);
2218	i++;	while (*chptr == ',') {
2219	kernel = chptr + 1;	i++;
2220	indexVars[i] = strtol(kernel, &chptr, 10);	kernel = chptr + 1;
2221	}	indexVars[i] = strtol(kernel, &chptr, 10);
2222		}
2223
2224	if (*chptr) {	if (*chptr) {
2225	/* can't parse it, bail */	/* can't parse it, bail */
2226	return NULL;	return NULL;
2227	}	}
2228
2229	indexVars[i + 1] = -1;	indexVars[i + 1] = -1;
	i = 0;
	if (index) {
	while (i < *index) i++;
	if (indexVars[i] == -1) return NULL;
	}
2230
2231	entry = findEntryByIndex(config, indexVars[i]);	i = 0;
2232	if (!entry) return NULL;	if (index) {
2233		while (i < *index) {
2234		i++;
2235		if (indexVars[i] == -1)
2236		return NULL;
2237		}
2238		}
2239
2240	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	entry = findEntryByIndex(config, indexVars[i]);
2241	if (!line) return NULL;	if (!entry)
2242		return NULL;
2243
2244		line =
2245		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2246		LT_KERNEL_16, entry->lines);
2247		if (!line)
2248		return NULL;
2249
2250		if (index)
2251		*index = indexVars[i];
2252		return entry;
2253		}
2254
2255		if (!strcmp(kernel, "DEFAULT")) {
2256		if (index && *index > config->defaultImage) {
2257		entry = NULL;
2258		} else {
2259		entry = findEntryByIndex(config, config->defaultImage);
2260		if (entry && entry->skip)
2261		entry = NULL;
2262		else if (index)
2263		*index = config->defaultImage;
2264		}
2265		} else if (!strcmp(kernel, "ALL")) {
2266		if (index)
2267		i = *index;
2268		else
2269		i = 0;
2270
2271		while ((entry = findEntryByIndex(config, i))) {
2272		if (!entry->skip)
2273		break;
2274		i++;
2275		}
2276
2277	if (index) *index = indexVars[i];	if (entry && index)
2278	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2279	} else {	} else {
2280	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2281	if (entry && entry->skip)	i = *index;
2282	entry = NULL;	else
2283	else if (index)	i = 0;
2284	*index = config->defaultImage;
2285	}	if (!strncmp(kernel, "TITLE=", 6)) {
2286	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2287	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2288	i = *index;	kernel += 6;
2289	else	}
	i = 0;
2290
2291	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2292	if (!entry->skip) break;	entry = entry->next, i++) {
2293	i++;	if (entry->skip)
2294	}	continue;
2295
2296		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2297		checkType, kernel, entry);
2298
2299		/* check all the lines matching checkType */
2300		for (line = entry->lines; line; line = line->next) {
2301		enum lineType_e ct = checkType;
2302		if (entry->multiboot && checkType == LT_KERNEL)
2303		ct = LT_KERNEL | LT_KERNEL_EFI |
2304		LT_MBMODULE | LT_HYPER |
2305		LT_KERNEL_16;
2306		else if (checkType & LT_KERNEL)
2307		ct = checkType | LT_KERNEL_EFI |
2308		LT_KERNEL_16;
2309		line = getLineByType(ct, line);
2310		if (!line)
2311		break; /* not found in this entry */
2312
2313		if (line && line->type != LT_MENUENTRY &&
2314		line->numElements >= 2) {
2315		rootspec =
2316		getRootSpecifier(line->elements[1].
2317		item);
2318		if (!strcmp
2319		(line->elements[1].item +
2320		((rootspec !=
2321		NULL) ? strlen(rootspec) : 0),
2322		kernel + strlen(prefix)))
2323		break;
2324		}
2325		if (line->type == LT_MENUENTRY &&
2326		!strcmp(line->elements[1].item, kernel))
2327		break;
2328		}
2329
2330	if (entry && index)	/* make sure this entry has a kernel identifier; this skips
2331	*index = i;	* non-Linux boot entries (could find netbsd etc, though, which is
2332	} else {	* unfortunate)
2333	if (index)	*/
2334	i = *index;	if (line
2335	else	&& getLineByType(LT_KERNEL | LT_HYPER |
2336	i = 0;	LT_KERNEL_EFI | LT_KERNEL_16,
2337		entry->lines))
2338		break; /* found 'im! */
2339		}
2340
2341	if (!strncmp(kernel, "TITLE=", 6)) {	if (index)
2342	prefix = "";	*index = i;
	checkType = LT_TITLE;
	kernel += 6;
2343	}	}
2344
2345	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	return entry;
2346	if (entry->skip) continue;	}
	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);
	/* check all the lines matching checkType */
	for (line = entry->lines; line; line = line->next) {
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
2347
2348	if (line && line->numElements >= 2) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2349	rootspec = getRootSpecifier(line->elements[1].item);	int *index)
2350	if (!strcmp(line->elements[1].item +	{
2351	((rootspec != NULL) ? strlen(rootspec) : 0),	struct singleEntry *entry;
2352	kernel + strlen(prefix)))	struct singleLine *line;
2353		int i;
2354		char *newtitle;
2355
2356		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2357		if (index && i < *index)
2358		continue;
2359		line = getLineByType(LT_TITLE, entry->lines);
2360		if (!line)
2361		line = getLineByType(LT_MENUENTRY, entry->lines);
2362		if (!line)
2363		continue;
2364		newtitle = grub2ExtractTitle(line);
2365		if (!newtitle)
2366		continue;
2367		if (!strcmp(title, newtitle))
2368	break;	break;
	}
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2369	}	}
2370
2371	if (index) *index = i;	if (!entry)
2372	}	return NULL;
2373
2374	return entry;	if (index)
2375		*index = i;
2376		return entry;
2377	}	}
2378
2379	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2380	struct singleEntry * entry;	{
2381		struct singleEntry *entry;
2382
2383	entry = cfg->entries;	entry = cfg->entries;
2384	while (index && entry) {	while (index && entry) {
2385	entry = entry->next;	entry = entry->next;
2386	index--;	index--;
2387	}	}
2388
2389	return entry;	return entry;
2390	}	}
2391
2392	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1709  struct singleEntry * findEntryByIndex(st	Line 2394  struct singleEntry * findEntryByIndex(st
2394	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2395	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2396	* bail. */	* bail. */
2397	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2398	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2399	struct singleEntry * entry, * entry2;	{
2400	int index;	struct singleEntry *entry, *entry2;
2401		int index;
2402	if (cfg->defaultImage > -1) {
2403	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2404	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2405	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2406	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2407		if (defTitle) {
2408		int index = 0;
2409		if (isnumber(defTitle)) {
2410		index = atoi(defTitle);
2411		entry = findEntryByIndex(cfg, index);
2412		} else {
2413		entry =
2414		findEntryByTitle(cfg, defTitle,
2415		&index);
2416		}
2417		if (entry
2418		&& suitableImage(entry, prefix, skipRemoved,
2419		flags)) {
2420		cfg->defaultImage = index;
2421		if (indexPtr)
2422		*indexPtr = index;
2423		return entry;
2424		}
2425		}
2426		}
2427		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2428		entry = findEntryByIndex(cfg, cfg->defaultImage);
2429		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2430		if (indexPtr)
2431		*indexPtr = cfg->defaultImage;
2432		return entry;
2433		}
2434	}	}
	}
2435
2436	index = 0;	index = 0;
2437	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2438	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2439	int j;	int j;
2440	for (j = 0; j < index; j++) {	for (j = 0; j < index; j++) {
2441	entry2 = findEntryByIndex(cfg, j);	entry2 = findEntryByIndex(cfg, j);
2442	if (entry2->skip) index--;	if (entry2->skip)
2443	}	index--;
2444	if (indexPtr) *indexPtr = index;	}
2445		if (indexPtr)
2446		*indexPtr = index;
2447
2448	return entry;	return entry;
2449	}	}
2450
2451	index++;	index++;
2452	}	}
2453
2454	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2455		_("grubby fatal error: unable to find a suitable template\n"));
2456
2457	return NULL;	return NULL;
2458	}	}
2459
2460	char * findBootPrefix(void) {	char *findBootPrefix(void)
2461	struct stat sb, sb2;	{
2462		struct stat sb, sb2;
2463
2464	stat("/", &sb);	stat("/", &sb);
2465	#ifdef __ia64__	#ifdef __ia64__
2466	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2467	#else	#else
2468	stat("/boot", &sb2);	stat("/boot", &sb2);
2469	#endif	#endif
2470
2471	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2472	return strdup("");	return strdup("");
2473
2474	#ifdef __ia64__	#ifdef __ia64__
2475	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2476	#else	#else
2477	return strdup("/boot");	return strdup("/boot");
2478	#endif	#endif
2479	}	}
2480
2481	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2482	const char * prefix) {	const char *prefix)
2483	struct singleEntry * entry;	{
2484		struct singleEntry *entry;
	if (!image) return;
	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
	entry->skip = 1;
	}
	void setDefaultImage(struct grubConfig * config, int hasNew,
	const char * defaultKernelPath, int newIsDefault,
	const char * prefix, int flags) {
	struct singleEntry * entry, * entry2, * newDefault;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* 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;
2485
2486	if (entry && !entry->skip) {	if (!image)
2487	/* we can preserve the default */	return;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
	}
2488
2489	void setFallbackImage(struct grubConfig * config, int hasNew) {	/* check and see if we're removing the default image */
2490	struct singleEntry * entry, * entry2;	if (isdigit(*image)) {
2491	int j;	entry = findEntryByPath(cfg, image, prefix, NULL);
2492		if (entry)
2493	if (config->fallbackImage == -1) return;	entry->skip = 1;
2494		return;
2495	entry = findEntryByIndex(config, config->fallbackImage);	}
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2496
2497	if (hasNew)	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2498	config->fallbackImage++;	entry->skip = 1;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
2499	}	}
2500
2501	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	void setDefaultImage(struct grubConfig *config, int isUserSpecifiedKernelPath,
2502	struct singleLine * line;	const char *defaultKernelPath, int newBootEntryIsDefault,
2503	char * root = NULL;	const char *prefix, int flags, int newDefaultBootEntryIndex)
2504	int i;	{
2505		struct singleEntry *entry, *entry2, *newDefault;
2506	printf("index=%d\n", index);	int i, j;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	if (line->numElements >= 3) {
	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);
	}
2507
2508	i++;	if (newBootEntryIsDefault) {
2509		config->defaultImage = FIRST_ENTRY_INDEX;
2510		return;
2511		} else if ((newDefaultBootEntryIndex >= 0) && config->cfi->defaultIsIndex) {
2512		if (findEntryByIndex(config, newDefaultBootEntryIndex))
2513		config->defaultImage = newDefaultBootEntryIndex;
2514		else
2515		config->defaultImage = NO_DEFAULT_ENTRY;
2516		return;
2517		} else if (defaultKernelPath) {
2518		i = 0;
2519		if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
2520		config->defaultImage = i;
2521		} else {
2522		config->defaultImage = NO_DEFAULT_ENTRY;
2523		return;
2524		}
2525	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2526
2527	printf("args=\"");	/* defaultImage now points to what we'd like to use, but before any
2528	i = 1;	* order changes */
2529	while (i < line->numElements) {	if ((config->defaultImage == DEFAULT_SAVED) ||
2530	if (!strncmp(line->elements[i].item, "root=", 5)) {	(config->defaultImage == DEFAULT_SAVED_GRUB2))
2531	root = line->elements[i].item + 5;	/* default is set to saved, we don't want to change it */
2532	} else {	return;
2533	s = line->elements[i].item;
2534		if (config->defaultImage >= FIRST_ENTRY_INDEX)
2535		entry = findEntryByIndex(config, config->defaultImage);
2536		else
2537		entry = NULL;
2538
2539	printf("%s%s", s, line->elements[i].indent);	if (entry && !entry->skip) {
2540		/* we can preserve the default */
2541		if (isUserSpecifiedKernelPath)
2542		config->defaultImage++;
2543
2544		/* count the number of entries erased before this one */
2545		for (j = 0; j < config->defaultImage; j++) {
2546		entry2 = findEntryByIndex(config, j);
2547		if (entry2->skip)
2548		config->defaultImage--;
2549	}	}
2550		} else if (isUserSpecifiedKernelPath) {
2551		config->defaultImage = FIRST_ENTRY_INDEX;
2552		} else {
2553		/* Either we just erased the default (or the default line was
2554		* bad to begin with) and didn't put a new one in. We'll use
2555		* the first valid image. */
2556		newDefault =
2557		findTemplate(config, prefix, &config->defaultImage, 1,
2558		flags);
2559		if (!newDefault)
2560		config->defaultImage = NO_DEFAULT_ENTRY;
2561		}
2562		}
2563
2564	i++;	void setFallbackImage(struct grubConfig *config, int hasNew)
2565	}	{
2566		struct singleEntry *entry, *entry2;
2567		int j;
2568
2569	s = line->elements[i - 1].indent;	if (config->fallbackImage == -1)
2570	printf("\"\n");	return;
2571
2572		entry = findEntryByIndex(config, config->fallbackImage);
2573		if (!entry || entry->skip) {
2574		config->fallbackImage = -1;
2575		return;
2576	}	}
	}
2577
2578	if (!root) {	if (hasNew)
2579	line = getLineByType(LT_ROOT, entry->lines);	config->fallbackImage++;
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2580
2581	if (root) {	/* count the number of entries erased before this one */
2582	char * s = alloca(strlen(root) + 1);	for (j = 0; j < config->fallbackImage; j++) {
2583		entry2 = findEntryByIndex(config, j);
2584	strcpy(s, root);	if (entry2->skip)
2585	if (s[strlen(s) - 1] == '"')	config->fallbackImage--;
2586	s[strlen(s) - 1] = '\0';	}
2587	/* make sure the root doesn't have a trailing " */	}
	printf("root=%s\n", s);
	}
2588
2589	line = getLineByType(LT_INITRD, entry->lines);	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2590		{
2591		struct singleLine *line;
2592		char *root = NULL;
2593		int i;
2594		int j;
2595
2596	if (line && line->numElements >= 2) {	printf("index=%d\n", index);
	printf("initrd=%s", prefix);
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
	}
2597
2598	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	line =
2599	FILE * in;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2600	char buf[1024];	entry->lines);
2601	char * chptr;	if (!line) {
2602	char * start;	printf("non linux entry\n");
2603	char * param;	return;
2604		}
	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);
	}
2605
2606	fclose(in);	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2607		printf("kernel=%s\n", line->elements[1].item);
2608		else
2609		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2610
2611	return 0;	if (line->numElements >= 3) {
2612	}	printf("args=\"");
2613		i = 2;
2614		while (i < line->numElements) {
2615		if (!strncmp(line->elements[i].item, "root=", 5)) {
2616		root = line->elements[i].item + 5;
2617		} else {
2618		printf("%s%s", line->elements[i].item,
2619		line->elements[i].indent);
2620		}
2621
2622	void dumpSysconfigGrub(void) {	i++;
2623	char * boot;	}
2624	int lba;	printf("\"\n");
2625		} else {
2626	if (!parseSysconfigGrub(&lba, &boot)) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2627	if (lba) printf("lba\n");	if (line) {
2628	if (boot) printf("boot=%s\n", boot);	char *s;
2629	}
2630	}	printf("args=\"");
2631		i = 1;
2632	int displayInfo(struct grubConfig * config, char * kernel,	while (i < line->numElements) {
2633	const char * prefix) {	if (!strncmp
2634	int i = 0;	(line->elements[i].item, "root=", 5)) {
2635	struct singleEntry * entry;	root = line->elements[i].item + 5;
2636	struct singleLine * line;	} else {
2637		s = line->elements[i].item;
	entry = findEntryByPath(config, kernel, prefix, &i);
	if (!entry) {
	fprintf(stderr, _("grubby: kernel not found\n"));
	return 1;
	}
2638
2639	/* this is a horrible hack to support /etc/conf.d/grub; there must	printf("%s%s", s,
2640	be a better way */	line->elements[i].indent);
2641	if (config->cfi == &grubConfigType) {	}
	dumpSysconfigGrub();
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2642
2643	line = getLineByType(LT_LBA, config->theLines);	i++;
2644	if (line) printf("lba\n");	}
	}
2645
2646	displayEntry(entry, prefix, i);	s = line->elements[i - 1].indent;
2647		printf("\"\n");
2648		}
2649		}
2650
2651	i++;	if (!root) {
2652	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	line = getLineByType(LT_ROOT, entry->lines);
2653	displayEntry(entry, prefix, i);	if (line && line->numElements >= 2)
2654	i++;	root = line->elements[1].item;
2655	}	}
2656
2657	return 0;	if (root) {
2658	}	char *s = alloca(strlen(root) + 1);
2659
2660	struct singleLine * addLineTmpl(struct singleEntry * entry,	strcpy(s, root);
2661	struct singleLine * tmplLine,	if (s[strlen(s) - 1] == '"')
2662	struct singleLine * prevLine,	s[strlen(s) - 1] = '\0';
2663	const char * val,	/* make sure the root doesn't have a trailing " */
2664	struct configFileInfo * cfi)	printf("root=%s\n", s);
	{
	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);
	}
2665	}	}
	}
2666
2667	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	line =
2668	newLine->elements[0].item : "");	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2669		entry->lines);
2670
2671	if (!entry->lines) {	if (line && line->numElements >= 2) {
2672	/* first one on the list */	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2673	entry->lines = newLine;	printf("initrd=");
2674	} else if (prevLine) {	else
2675	/* add after prevLine */	printf("initrd=%s", prefix);
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2676
2677	return newLine;	for (i = 1; i < line->numElements; i++)
2678	}	printf("%s%s", line->elements[i].item,
2679		line->elements[i].indent);
2680		printf("\n");
2681		}
2682
2683	/* val may be NULL */	line = getLineByType(LT_TITLE, entry->lines);
2684	struct singleLine *  addLine(struct singleEntry * entry,	if (line) {
2685	struct configFileInfo * cfi,	printf("title=%s\n", line->elements[1].item);
2686	enum lineType_e type, char * defaultIndent,	} else {
2687	const char * val) {	char *title;
2688	struct singleLine * line, * prev;	line = getLineByType(LT_MENUENTRY, entry->lines);
2689	struct keywordTypes * kw;	if (line) {
2690	struct singleLine tmpl;	title = grub2ExtractTitle(line);
2691		if (title)
2692	/* NB: This function shouldn't allocate items on the heap, rather on the	printf("title=%s\n", title);
2693	* 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 = "";
2694	}	}
	}
2695
2696	/* The last non-empty line gives us the indention to us and the line	for (j = 0, line = entry->lines; line; line = line->next) {
2697	to insert after. Note that comments are considered empty lines, which	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2698	may not be ideal? If there are no lines or we are looking at the	if (!strncmp
2699	first line, we use defaultIndent (the first line is normally indented	(prefix, line->elements[1].item, strlen(prefix)))
2700	differently from the rest) */	printf("mbmodule%d=", j);
2701	for (line = entry->lines, prev = NULL; line; line = line->next) {	else
2702	if (line->numElements) prev = line;	printf("mbmodule%d=%s", j, prefix);
2703	/* fall back on the last line if prev isn't otherwise set */
2704	if (!line->next && !prev) prev = line;	for (i = 1; i < line->numElements; i++)
2705	}	printf("%s%s", line->elements[i].item,
2706		line->elements[i].indent);
2707		printf("\n");
2708		j++;
2709		}
2710		}
2711		}
2712
2713	struct singleLine *menuEntry;	int isSuseSystem(void)
2714	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	{
2715	if (tmpl.type == LT_ENTRY_END) {	const char *path;
2716	if (menuEntry)	const static char default_path[] = "/etc/SuSE-release";
2717	tmpl.indent = menuEntry->indent;
2718	else	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2719	tmpl.indent = defaultIndent ?: "";	path = default_path;
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
2720
2721	return addLineTmpl(entry, &tmpl, prev, val, cfi);	if (!access(path, R_OK))
2722		return 1;
2723		return 0;
2724	}	}
2725
2726	void removeLine(struct singleEntry * entry, struct singleLine * line) {	int isSuseGrubConf(const char *path)
2727	struct singleLine * prev;	{
2728	int i;	FILE *grubConf;
2729		char *line = NULL;
2730		size_t len = 0, res = 0;
2731
2732		grubConf = fopen(path, "r");
2733		if (!grubConf) {
2734		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2735		path);
2736		return 0;
2737		}
2738
2739	for (i = 0; i < line->numElements; i++) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2740	free(line->elements[i].item);	if (!strncmp(line, "setup", 5)) {
2741	free(line->elements[i].indent);	fclose(grubConf);
2742	}	free(line);
2743	free(line->elements);	return 1;
2744	free(line->indent);	}
2745		}
2746
2747	if (line == entry->lines) {	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2748	entry->lines = line->next;	path);
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2749
2750	free(line);	fclose(grubConf);
2751		free(line);
2752		return 0;
2753	}	}
2754
2755	static int isquote(char q)	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2756	{	{
2757	if (q == '\'' || q == '\"')	FILE *grubConf;
2758	return 1;	char *line = NULL;
2759	return 0;	size_t res = 0, len = 0;
	}
2760
2761	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	if (!path)
2762	{	return 1;
2763	struct singleLine newLine = {	if (!lbaPtr)
2764	.indent = tmplLine->indent,	return 1;
	.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;
	}
2765
2766	line->elements = realloc(line->elements, (line->numElements + 1) *	grubConf = fopen(path, "r");
2767	sizeof(*line->elements));	if (!grubConf)
2768	memmove(&line->elements[insertHere+1],	return 1;
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
2769
2770	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	while ((res = getline(&line, &len, grubConf)) != -1) {
2771	/* move the end-of-line forward */	if (line[res - 1] == '\n')
2772	line->elements[insertHere].indent =	line[res - 1] = '\0';
2773	line->elements[insertHere-1].indent;	else if (len > res)
2774	line->elements[insertHere-1].indent = strdup(indent);	line[res] = '\0';
2775	} else {	else {
2776	line->elements[insertHere].indent = strdup(indent);	line = realloc(line, res + 1);
2777	}	line[res] = '\0';
2778		}
2779
2780	line->numElements++;	if (!strncmp(line, "setup", 5)) {
2781		if (strstr(line, "--force-lba")) {
2782		*lbaPtr = 1;
2783		} else {
2784		*lbaPtr = 0;
2785		}
2786		dbgPrintf("lba: %i\n", *lbaPtr);
2787		break;
2788		}
2789		}
2790
2791	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(line);
2792	line->elements[0].item,	fclose(grubConf);
2793	line->elements[insertHere].item,	return 0;
	line->elements[insertHere].indent,
	insertHere);
2794	}	}
2795
2796	static void removeElement(struct singleLine * line, int removeHere) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2797	int i;	{
2798		FILE *grubConf;
2799		char *line = NULL;
2800		size_t res = 0, len = 0;
2801		char *lastParamPtr = NULL;
2802		char *secLastParamPtr = NULL;
2803		char installDeviceNumber = '\0';
2804		char *bounds = NULL;
2805
2806	/* sanity check */	if (!path)
2807	if (removeHere >= line->numElements) return;	return 1;
2808		if (!devicePtr)
2809		return 1;
2810
2811	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	grubConf = fopen(path, "r");
2812	removeHere, line->elements[removeHere].item);	if (!grubConf)
2813		return 1;
2814
2815	free(line->elements[removeHere].item);	while ((res = getline(&line, &len, grubConf)) != -1) {
2816		if (strncmp(line, "setup", 5))
2817		continue;
2818
2819		if (line[res - 1] == '\n')
2820		line[res - 1] = '\0';
2821		else if (len > res)
2822		line[res] = '\0';
2823		else {
2824		line = realloc(line, res + 1);
2825		line[res] = '\0';
2826		}
2827
2828	if (removeHere > 1) {	lastParamPtr = bounds = line + res;
	/* previous argument gets this argument's post-indentation */
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2829
2830	/* now collapse the array, but don't bother to realloc smaller */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2831	for (i = removeHere; i < line->numElements - 1; i++)	while (!isspace(*lastParamPtr))
2832	line->elements[i] = line->elements[i + 1];	lastParamPtr--;
2833		lastParamPtr++;
2834	line->numElements--;
2835	}	secLastParamPtr = lastParamPtr - 2;
2836		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2837	int argMatch(const char * one, const char * two) {
2838	char * first, * second;	if (lastParamPtr + 3 > bounds) {
2839	char * chptr;	dbgPrintf("lastParamPtr going over boundary");
2840		fclose(grubConf);
2841	first = strcpy(alloca(strlen(one) + 1), one);	free(line);
2842	second = strcpy(alloca(strlen(two) + 1), two);	return 1;
2843		}
2844	chptr = strchr(first, '=');	if (!strncmp(lastParamPtr, "(hd", 3))
2845	if (chptr) *chptr = '\0';	lastParamPtr += 3;
2846		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2847	chptr = strchr(second, '=');
2848	if (chptr) *chptr = '\0';	/*
2849		* Second last parameter will decide wether last parameter is
2850	return strcmp(first, second);	* an IMAGE_DEVICE or INSTALL_DEVICE
2851	}	*/
2852		while (!isspace(*secLastParamPtr))
2853	int updateActualImage(struct grubConfig * cfg, const char * image,	secLastParamPtr--;
2854	const char * prefix, const char * addArgs,	secLastParamPtr++;
2855	const char * removeArgs, int multibootArgs) {
2856	struct singleEntry * entry;	if (secLastParamPtr + 3 > bounds) {
2857	struct singleLine * line, * rootLine;	dbgPrintf("secLastParamPtr going over boundary");
2858	int index = 0;	fclose(grubConf);
2859	int i, k;	free(line);
2860	const char ** newArgs, ** oldArgs;	return 1;
2861	const char ** arg;	}
2862	int useKernelArgs, useRoot;	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2863	int firstElement;	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2864	int *usedElements;	secLastParamPtr += 3;
2865	int doreplace;	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2866		installDeviceNumber = *secLastParamPtr;
2867	if (!image) return 0;	} else {
2868		installDeviceNumber = *lastParamPtr;
2869	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;
	}
	}
2870
2871	if (!removeArgs) {	*devicePtr = malloc(6);
2872	oldArgs = malloc(sizeof(*oldArgs));	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2873	*oldArgs = NULL;	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2874	} else {	fclose(grubConf);
2875	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	free(line);
2876	fprintf(stderr,	return 0;
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2877	}	}
	}
2878
2879		free(line);
2880		fclose(grubConf);
2881		return 1;
2882		}
2883
2884	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2885	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	{
2886		FILE *deviceMap;
2887		char *line = NULL;
2888		size_t res = 0, len = 0;
2889		char *devicePtr;
2890		char *bounds = NULL;
2891		const char *path;
2892		const static char default_path[] = "/boot/grub/device.map";
2893
2894	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	if (!device)
2895	&& !multibootArgs);	return 1;
2896		if (!bootPtr)
2897		return 1;
2898
2899	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2900		path = default_path;
2901
2902	if (multibootArgs && !entry->multiboot)	dbgPrintf("opening grub device.map file from: %s\n", path);
2903	continue;	deviceMap = fopen(path, "r");
2904		if (!deviceMap)
2905		return 1;
2906
2907	/* Determine where to put the args.  If this config supports	while ((res = getline(&line, &len, deviceMap)) != -1) {
2908	* LT_KERNELARGS, use that.  Otherwise use	if (!strncmp(line, "#", 1))
2909	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	continue;
2910	*/
2911	if (useKernelArgs) {	if (line[res - 1] == '\n')
2912	line = getLineByType(LT_KERNELARGS, entry->lines);	line[res - 1] = '\0';
2913	if (!line) {	else if (len > res)
2914	/* no LT_KERNELARGS, need to add it */	line[res] = '\0';
2915	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	else {
2916	cfg->secondaryIndent, NULL);	line = realloc(line, res + 1);
2917	}	line[res] = '\0';
2918	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;
	}
2919
2920	/* handle the elilo case which does:	devicePtr = line;
2921	*   append="hypervisor args -- kernel args"	bounds = line + res;
	*/
	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;
	}
	}
2922
2923	if (i < line->numElements && doreplace) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2924	/* direct replacement */	devicePtr++;
2925	free(line->elements[i].item);	dbgPrintf("device: %s\n", devicePtr);
2926	line->elements[i].item = strdup(*arg);
2927		if (!strncmp(devicePtr, device, strlen(device))) {
2928		devicePtr += strlen(device);
2929		while (isspace(*devicePtr)
2930		&& ((devicePtr + 1) <= bounds))
2931		devicePtr++;
2932
2933	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	*bootPtr = strdup(devicePtr);
2934	/* root= replacement */	break;
	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);
2935	}	}
	}
	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);
2936	}	}
	}
2937
2938	free(newArgs);	free(line);
2939	free(oldArgs);	fclose(deviceMap);
2940		return 0;
2941		}
2942
2943		int suseGrubConfGetBoot(const char *path, char **bootPtr)
2944		{
2945		char *grubDevice;
2946
2947	return 0;	if (suseGrubConfGetInstallDevice(path, &grubDevice))
2948		dbgPrintf("error looking for grub installation device\n");
2949		else
2950		dbgPrintf("grubby installation device: %s\n", grubDevice);
2951
2952		if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
2953		dbgPrintf("error looking for grub boot device\n");
2954		else
2955		dbgPrintf("grubby boot device: %s\n", *bootPtr);
2956
2957		free(grubDevice);
2958		return 0;
2959	}	}
2960
2961	int updateImage(struct grubConfig * cfg, const char * image,	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
2962	const char * prefix, const char * addArgs,	{
2963	const char * removeArgs,	/*
2964	const char * addMBArgs, const char * removeMBArgs) {	* This SuSE grub configuration file at this location is not your
2965	int rc = 0;	* average grub configuration file, but instead the grub commands
2966		* used to setup grub on that system.
2967	if (!image) return rc;	*/
2968		const char *path;
2969	/* update the main args first... */	const static char default_path[] = "/etc/grub.conf";
2970	if (addArgs || removeArgs)
2971	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
2972	if (rc) return rc;	path = default_path;
2973
2974	/* and now any multiboot args */	if (!isSuseGrubConf(path))
	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)
2975	return 1;	return 1;
2976
2977		if (lbaPtr) {
2978		*lbaPtr = 0;
2979		if (suseGrubConfGetLba(path, lbaPtr))
2980		return 1;
2981	}	}
2982
2983	break;	if (bootPtr) {
2984	}	*bootPtr = NULL;
2985		suseGrubConfGetBoot(path, bootPtr);
2986		}
2987
2988	return 0;	return 0;
2989	}	}
2990
2991	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
2992	int fd;	{
2993	unsigned char bootSect[512];	FILE *in;
2994	int offset;	char buf[1024];
2995		char *chptr;
2996	fd = open(device, O_RDONLY);	char *start;
2997	if (fd < 0) {	char *param;
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2998
2999	if (read(fd, bootSect, 512) != 512) {	in = fopen("/etc/sysconfig/grub", "r");
3000	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (!in)
3001	device, strerror(errno));	return 1;
	return 1;
	}
	close(fd);
3002
3003	/* first three bytes should match, a jmp short should be in there */	if (lbaPtr)
3004	if (memcmp(boot, bootSect, 3))	*lbaPtr = 0;
3005	return 0;	if (bootPtr)
3006		*bootPtr = NULL;
3007
3008		while (fgets(buf, sizeof(buf), in)) {
3009		start = buf;
3010		while (isspace(*start))
3011		start++;
3012		if (*start == '#')
3013		continue;
3014
3015		chptr = strchr(start, '=');
3016		if (!chptr)
3017		continue;
3018		chptr--;
3019		while (*chptr && isspace(*chptr))
3020		chptr--;
3021		chptr++;
3022		*chptr = '\0';
3023
3024		param = chptr + 1;
3025		while (*param && isspace(*param))
3026		param++;
3027		if (*param == '=') {
3028		param++;
3029		while (*param && isspace(*param))
3030		param++;
3031		}
3032
3033	if (boot[1] == JMP_SHORT_OPCODE) {	chptr = param;
3034	offset = boot[2] + 2;	while (*chptr && !isspace(*chptr))
3035	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	chptr++;
3036	offset = (boot[3] << 8) + boot[2] + 2;	*chptr = '\0';
3037	} else if (boot[0] == JMP_SHORT_OPCODE) {
3038	offset = boot[1] + 2;	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3039	/*	*lbaPtr = 1;
3040	* it looks like grub, when copying stage1 into the mbr, patches stage1	else if (!strcmp(start, "boot") && bootPtr)
3041	* right after the JMP location, replacing other instructions such as	*bootPtr = strdup(param);
3042	* 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;
	}
3043
3044	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	fclose(in);
	return 0;
3045
3046	return 2;	return 0;
3047	}	}
3048
3049	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	void dumpSysconfigGrub(void)
3050	int fd;	{
3051	char buf[65536];	char *boot = NULL;
3052	char * end;	int lba;
	char * chptr;
	char * chptr2;
	int rc;
	/* it's on raid; we need to parse /proc/mdstat and check all of the
	*raw* devices listed in there */
3053
3054	if (!strncmp(mdDev, "/dev/", 5))	if (isSuseSystem()) {
3055	mdDev += 5;	if (parseSuseGrubConf(&lba, &boot)) {
3056		free(boot);
3057		return;
3058		}
3059		} else {
3060		if (parseSysconfigGrub(&lba, &boot)) {
3061		free(boot);
3062		return;
3063		}
3064		}
3065
3066	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (lba)
3067	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	printf("lba\n");
3068	strerror(errno));	if (boot) {
3069	return 2;	printf("boot=%s\n", boot);
3070	}	free(boot);
3071		}
3072		}
3073
3074	rc = read(fd, buf, sizeof(buf) - 1);	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3075	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3076	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int i = 0;
3077	strerror(errno));	struct singleEntry *entry;
3078	close(fd);	struct singleLine *line;
3079	return 2;
3080	}	entry = findEntryByPath(config, kernel, prefix, &i);
3081	close(fd);	if (!entry) {
3082	buf[rc] = '\0';	fprintf(stderr, _("grubby: kernel not found\n"));
3083		return 1;
3084		}
3085
3086	chptr = buf;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3087	while (*chptr) {	be a better way */
3088	end = strchr(chptr, '\n');	if (config->cfi == &grubConfigType) {
3089	if (!end) break;	dumpSysconfigGrub();
3090	*end = '\0';	} else {
3091		line = getLineByType(LT_BOOT, config->theLines);
3092		if (line && line->numElements >= 1) {
3093		printf("boot=%s\n", line->elements[1].item);
3094		}
3095
3096	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	line = getLineByType(LT_LBA, config->theLines);
3097	chptr[strlen(mdDev)] == ' ') {	if (line)
3098		printf("lba\n");
3099		}
3100
3101	/* found the device */	displayEntry(entry, prefix, i);
	while (*chptr && *chptr != ':') chptr++;
	chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* 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++;
	}
3102
3103	/*  we're good to go */	i++;
3104	return 2;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3105		displayEntry(entry, prefix, i);
3106		i++;
3107	}	}
3108
3109	chptr = end + 1;	return 0;
	}
	fprintf(stderr,
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3110	}	}
3111
3112	int checkForLilo(struct grubConfig * config) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3113	int fd;	struct singleLine *tmplLine,
3114	unsigned char boot[512];	struct singleLine *prevLine,
3115	struct singleLine * line;	const char *val, struct configFileInfo *cfi)
3116		{
3117	for (line = config->theLines; line; line = line->next)	struct singleLine *newLine = lineDup(tmplLine);
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3118
3119	if (line->numElements != 2) return 1;	if (isEfi && cfi == &grub2ConfigType) {
3120		enum lineType_e old = newLine->type;
3121		newLine->type = preferredLineType(newLine->type, cfi);
3122		if (old != newLine->type)
3123		newLine->elements[0].item =
3124		getKeyByType(newLine->type, cfi);
3125		}
3126
3127	fd = open("/boot/boot.b", O_RDONLY);	if (val) {
3128	if (fd < 0) {	/* override the inherited value with our own.
3129	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	* This is a little weak because it only applies to elements[1]
3130	"/boot/boot.b", strerror(errno));	*/
3131	return 1;	if (newLine->numElements > 1)
3132	}	removeElement(newLine, 1);
3133		insertElement(newLine, val, 1, cfi);
3134
3135		/* but try to keep the rootspec from the template... sigh */
3136		if (tmplLine->
3137		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3138		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3139		LT_INITRD_16)) {
3140		char *rootspec =
3141		getRootSpecifier(tmplLine->elements[1].item);
3142		if (rootspec != NULL) {
3143		free(newLine->elements[1].item);
3144		newLine->elements[1].item =
3145		sdupprintf("%s%s", rootspec, val);
3146		}
3147		}
3148		}
3149
3150	if (read(fd, boot, 512) != 512) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3151	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	newLine->elements[0].item : "");
	"/boot/boot.b", strerror(errno));
	return 1;
	}
	close(fd);
3152
3153	if (!strncmp("/dev/md", line->elements[1].item, 7))	if (!entry->lines) {
3154	return checkLiloOnRaid(line->elements[1].item, boot);	/* first one on the list */
3155		entry->lines = newLine;
3156		} else if (prevLine) {
3157		/* add after prevLine */
3158		newLine->next = prevLine->next;
3159		prevLine->next = newLine;
3160		}
3161
3162	return checkDeviceBootloader(line->elements[1].item, boot);	return newLine;
3163	}	}
3164
3165	int checkForGrub2(struct grubConfig * config) {	/* val may be NULL */
3166	if (!access("/etc/grub.d/", R_OK))	struct singleLine *addLine(struct singleEntry *entry,
3167	return 2;	struct configFileInfo *cfi,
3168		enum lineType_e type, char *defaultIndent,
3169		const char *val)
3170		{
3171		struct singleLine *line, *prev;
3172		struct keywordTypes *kw;
3173		struct singleLine tmpl;
3174
3175	return 1;	/* NB: This function shouldn't allocate items on the heap, rather on
3176	}	* the stack since it calls addLineTmpl which will make copies.
3177		*/
3178		if (type == LT_TITLE && cfi->titleBracketed) {
3179		/* we're doing a bracketed title (zipl) */
3180		tmpl.type = type;
3181		tmpl.numElements = 1;
3182		tmpl.elements = alloca(sizeof(*tmpl.elements));
3183		tmpl.elements[0].item = alloca(strlen(val) + 3);
3184		sprintf(tmpl.elements[0].item, "[%s]", val);
3185		tmpl.elements[0].indent = "";
3186		val = NULL;
3187		} else if (type == LT_MENUENTRY) {
3188		char *lineend = "--class gnu-linux --class gnu --class os {";
3189		if (!val) {
3190		fprintf(stderr,
3191		"Line type LT_MENUENTRY requires a value\n");
3192		abort();
3193		}
3194		kw = getKeywordByType(type, cfi);
3195		if (!kw) {
3196		fprintf(stderr,
3197		"Looking up keyword for unknown type %d\n",
3198		type);
3199		abort();
3200		}
3201		tmpl.indent = "";
3202		tmpl.type = type;
3203		tmpl.numElements = 3;
3204		tmpl.elements =
3205		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3206		tmpl.elements[0].item = kw->key;
3207		tmpl.elements[0].indent = alloca(2);
3208		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3209		tmpl.elements[1].item = (char *)val;
3210		tmpl.elements[1].indent = alloca(2);
3211		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3212		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3213		strcpy(tmpl.elements[2].item, lineend);
3214		tmpl.elements[2].indent = "";
3215		} else {
3216		kw = getKeywordByType(type, cfi);
3217		if (!kw) {
3218		fprintf(stderr,
3219		"Looking up keyword for unknown type %d\n",
3220		type);
3221		abort();
3222		}
3223		tmpl.type = type;
3224		tmpl.numElements = val ? 2 : 1;
3225		tmpl.elements =
3226		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3227		tmpl.elements[0].item = kw->key;
3228		tmpl.elements[0].indent = alloca(2);
3229		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3230		if (val) {
3231		tmpl.elements[1].item = (char *)val;
3232		tmpl.elements[1].indent = "";
3233		}
3234		}
3235
3236	int checkForGrub(struct grubConfig * config) {	/* The last non-empty line gives us the indention to us and the line
3237	int fd;	* to insert after. Note that comments are considered empty lines,
3238	unsigned char bootSect[512];	* which may not be ideal? If there are no lines or we are looking at
3239	char * boot;	* the first line, we use defaultIndent (the first line is normally
3240		* indented differently from the rest) */
3241		for (line = entry->lines, prev = NULL; line; line = line->next) {
3242		if (line->numElements)
3243		prev = line;
3244		/* fall back on the last line if prev isn't otherwise set */
3245		if (!line->next && !prev)
3246		prev = line;
3247		}
3248
3249		struct singleLine *menuEntry;
3250		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3251		if (tmpl.type == LT_ENTRY_END) {
3252		if (menuEntry)
3253		tmpl.indent = menuEntry->indent;
3254		else
3255		tmpl.indent = defaultIndent ? : "";
3256		} else if (tmpl.type != LT_MENUENTRY) {
3257		if (menuEntry)
3258		tmpl.indent = "\t";
3259		else if (prev == entry->lines)
3260		tmpl.indent = defaultIndent ? : "";
3261		else
3262		tmpl.indent = prev->indent;
3263		}
3264
3265	if (parseSysconfigGrub(NULL, &boot))	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3266	return 0;	}
3267
3268	/* assume grub is not installed -- not an error condition */	void removeLine(struct singleEntry *entry, struct singleLine *line)
3269	if (!boot)	{
3270	return 0;	struct singleLine *prev;
3271		int i;
3272
3273	fd = open("/boot/grub/stage1", O_RDONLY);	for (i = 0; i < line->numElements; i++) {
3274	if (fd < 0)	free(line->elements[i].item);
3275	/* this doesn't exist if grub hasn't been installed */	free(line->elements[i].indent);
3276	return 0;	}
3277		free(line->elements);
3278		free(line->indent);
3279
3280	if (read(fd, bootSect, 512) != 512) {	if (line == entry->lines) {
3281	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	entry->lines = line->next;
3282	"/boot/grub/stage1", strerror(errno));	} else {
3283	close(fd);	prev = entry->lines;
3284	return 1;	while (prev->next != line)
3285	}	prev = prev->next;
3286	close(fd);	prev->next = line->next;
3287		}
3288
3289	return checkDeviceBootloader(boot, bootSect);	free(line);
3290	}	}
3291
3292	int checkForExtLinux(struct grubConfig * config) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3293	int fd;	{
3294	unsigned char bootSect[512];	struct singleLine newLine = {
3295	char * boot;	.indent = tmplLine->indent,
3296	char executable[] = "/boot/extlinux/extlinux";	.type = tmplLine->type,
3297		.next = tmplLine->next,
3298	printf("entered: checkForExtLinux()\n");	};
3299		int firstQuotedItem = -1;
3300		int quoteLen = 0;
3301		int j;
3302		int element = 0;
3303		char *c;
3304
3305	if (parseSysconfigGrub(NULL, &boot))	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3306	return 0;	strcpy(c, tmplLine->elements[0].item);
3307		insertElement(&newLine, c, element++, cfi);
3308		free(c);
3309		c = NULL;
3310
3311		for (j = 1; j < tmplLine->numElements; j++) {
3312		if (firstQuotedItem == -1) {
3313		quoteLen += strlen(tmplLine->elements[j].item);
3314
3315		if (isquote(tmplLine->elements[j].item[0])) {
3316		firstQuotedItem = j;
3317		quoteLen +=
3318		strlen(tmplLine->elements[j].indent);
3319		} else {
3320		c = malloc(quoteLen + 1);
3321		strcpy(c, tmplLine->elements[j].item);
3322		insertElement(&newLine, c, element++, cfi);
3323		free(c);
3324		quoteLen = 0;
3325		}
3326		} else {
3327		int itemlen = strlen(tmplLine->elements[j].item);
3328		quoteLen += itemlen;
3329		quoteLen += strlen(tmplLine->elements[j].indent);
3330
3331		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3332		c = malloc(quoteLen + 1);
3333		c[0] = '\0';
3334		for (int i = firstQuotedItem; i < j + 1; i++) {
3335		strcat(c, tmplLine->elements[i].item);
3336		strcat(c, tmplLine->elements[i].indent);
3337		}
3338		insertElement(&newLine, c, element++, cfi);
3339		free(c);
3340
3341	/* assume grub is not installed -- not an error condition */	firstQuotedItem = -1;
3342	if (!boot)	quoteLen = 0;
3343	return 0;	}
3344		}
3345		}
3346		while (tmplLine->numElements)
3347		removeElement(tmplLine, 0);
3348		if (tmplLine->elements)
3349		free(tmplLine->elements);
3350
3351		tmplLine->numElements = newLine.numElements;
3352		tmplLine->elements = newLine.elements;
3353		}
3354
3355	fd = open(executable, O_RDONLY);	static void insertElement(struct singleLine *line,
3356	if (fd < 0)	const char *item, int insertHere,
3357	/* this doesn't exist if grub hasn't been installed */	struct configFileInfo *cfi)
3358	return 0;	{
3359		struct keywordTypes *kw;
3360		char indent[2] = "";
3361
3362	if (read(fd, bootSect, 512) != 512) {	/* sanity check */
3363	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (insertHere > line->numElements) {
3364	executable, strerror(errno));	dbgPrintf
3365	return 1;	("insertElement() adjusting insertHere from %d to %d\n",
3366	}	insertHere, line->numElements);
3367	close(fd);	insertHere = line->numElements;
3368		}
3369
3370		line->elements = realloc(line->elements, (line->numElements + 1) *
3371		sizeof(*line->elements));
3372		memmove(&line->elements[insertHere + 1],
3373		&line->elements[insertHere],
3374		(line->numElements - insertHere) * sizeof(*line->elements));
3375		line->elements[insertHere].item = strdup(item);
3376
3377		kw = getKeywordByType(line->type, cfi);
3378
3379		if (line->numElements == 0) {
3380		indent[0] = '\0';
3381		} else if (insertHere == 0) {
3382		indent[0] = kw->nextChar;
3383		} else if (kw->separatorChar != '\0') {
3384		indent[0] = kw->separatorChar;
3385		} else {
3386		indent[0] = ' ';
3387		}
3388
3389	return checkDeviceBootloader(boot, bootSect);	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3390	}	/* move the end-of-line forward */
3391		line->elements[insertHere].indent =
3392		line->elements[insertHere - 1].indent;
3393		line->elements[insertHere - 1].indent = strdup(indent);
3394		} else {
3395		line->elements[insertHere].indent = strdup(indent);
3396		}
3397
3398	static char * getRootSpecifier(char * str) {	line->numElements++;
	char * idx, * rootspec = NULL;
3399
3400	if (*str == '(') {	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3401	idx = rootspec = strdup(str);	line->elements[0].item,
3402	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	line->elements[insertHere].item,
3403	*(++idx) = '\0';	line->elements[insertHere].indent, insertHere);
	}
	return rootspec;
3404	}	}
3405
3406	static char * getInitrdVal(struct grubConfig * config,	static void removeElement(struct singleLine *line, int removeHere)
3407	const char * prefix, struct singleLine *tmplLine,	{
3408	const char * newKernelInitrd,	int i;
	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;
	}
3409
3410	initrdVal = end = malloc(totalSize);	/* sanity check */
3411		if (removeHere >= line->numElements)
3412		return;
3413
3414		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3415		removeHere, line->elements[removeHere].item);
3416
3417		free(line->elements[removeHere].item);
3418
3419		if (removeHere > 1) {
3420		/* previous argument gets this argument's post-indentation */
3421		free(line->elements[removeHere - 1].indent);
3422		line->elements[removeHere - 1].indent =
3423		line->elements[removeHere].indent;
3424		} else {
3425		free(line->elements[removeHere].indent);
3426		}
3427
3428	end = stpcpy (end, newKernelInitrd + prefixLen);	/* now collapse the array, but don't bother to realloc smaller */
3429		for (i = removeHere; i < line->numElements - 1; i++)
3430		line->elements[i] = line->elements[i + 1];
3431
3432	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	line->numElements--;
3433	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
3434
3435	extraInitrd = extraInitrds[i] + prefixLen;	int argMatch(const char *one, const char *two)
3436	/* Don't add entries that are already there */	{
3437	if (tmplLine != NULL) {	char *first, *second;
3438	for (j = 2; j < tmplLine->numElements; j++)	char *chptr;
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
3439
3440	if (j != tmplLine->numElements)	first = strcpy(alloca(strlen(one) + 1), one);
3441	continue;	second = strcpy(alloca(strlen(two) + 1), two);
	}
3442
3443	*end++ = separatorChar;	chptr = strchr(first, '=');
3444	end = stpcpy(end, extraInitrd);	if (chptr)
3445	}	*chptr = '\0';
3446
3447		chptr = strchr(second, '=');
3448		if (chptr)
3449		*chptr = '\0';
3450
3451	return initrdVal;	return strcmp(first, second);
3452	}	}
3453
3454	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int updateActualImage(struct grubConfig *cfg, const char *image,
3455	const char * prefix,	const char *prefix, const char *addArgs,
3456	char * newKernelPath, char * newKernelTitle,	const char *removeArgs, int multibootArgs)
3457	char * newKernelArgs, char * newKernelInitrd,	{
3458	char ** extraInitrds, int extraInitrdCount,	struct singleEntry *entry;
3459	char * newMBKernel, char * newMBKernelArgs) {	struct singleLine *line, *rootLine;
3460	struct singleEntry * new;	int index = 0;
3461	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	int i, k;
3462	int needs;	const char **newArgs, **oldArgs;
3463	char * chptr;	const char **arg;
3464		int useKernelArgs, useRoot;
3465	if (!newKernelPath) return 0;	int firstElement;
3466		int *usedElements;
3467	/* if the newKernelTitle is too long silently munge it into something	int doreplace;
3468	* we can live with. truncating is first check, then we'll just mess with
3469	* it until it looks better */	if (!image)
3470	if (config->cfi->maxTitleLength &&	return 0;
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3471
3472	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (!addArgs) {
3473	while (findEntryByPath(config, buf, NULL, NULL)) {	newArgs = malloc(sizeof(*newArgs));
3474	sprintf(numBuf, "%d", i++);	*newArgs = NULL;
3475	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	} else {
3476		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3477		fprintf(stderr,
3478		_("grubby: error separating arguments '%s'\n"),
3479		addArgs);
3480		return 1;
3481		}
3482	}	}
3483
3484	newKernelTitle = buf + 6;	if (!removeArgs) {
3485	}	oldArgs = malloc(sizeof(*oldArgs));
3486		*oldArgs = NULL;
3487		} else {
3488		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3489		fprintf(stderr,
3490		_("grubby: error separating arguments '%s'\n"),
3491		removeArgs);
3492		free(newArgs);
3493		return 1;
3494		}
3495		}
3496
3497	new = malloc(sizeof(*new));	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3498	new->skip = 0;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3499
3500	if (template) {	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3501	for (masterLine = template->lines;	&& !multibootArgs);
3502	masterLine && (tmplLine = lineDup(masterLine));
3503	lineFree(tmplLine), masterLine = masterLine->next)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3504	{
3505	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	if (multibootArgs && !entry->multiboot)
3506		continue;
3507	/* skip comments */
3508	chptr = tmplLine->indent;	/* Determine where to put the args.  If this config supports
3509	while (*chptr && isspace(*chptr)) chptr++;	* LT_KERNELARGS, use that.  Otherwise use
3510	if (*chptr == '#') continue;	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3511		*/
3512	if (tmplLine->type == LT_KERNEL &&	if (useKernelArgs) {
3513	tmplLine->numElements >= 2) {	line = getLineByType(LT_KERNELARGS, entry->lines);
3514	if (!template->multiboot && (needs & NEED_MB)) {	if (!line) {
3515	/* it's not a multiboot template and this is the kernel	/* no LT_KERNELARGS, need to add it */
3516	* line.  Try to be intelligent about inserting the	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3517	* hypervisor at the same time.	cfg->secondaryIndent, NULL);
3518	*/	}
3519	if (config->cfi->mbHyperFirst) {	firstElement = 1;
3520	/* insert the hypervisor first */
3521	newLine = addLine(new, config->cfi, LT_HYPER,	} else if (multibootArgs) {
3522	tmplLine->indent,	line = getLineByType(LT_HYPER, entry->lines);
3523	newMBKernel + strlen(prefix));	if (!line) {
3524	/* set up for adding the kernel line */	/* a multiboot entry without LT_HYPER? */
3525	free(tmplLine->indent);	continue;
3526	tmplLine->indent = strdup(config->secondaryIndent);	}
3527	needs &= ~NEED_MB;	firstElement = 2;
	}
	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);
	}
	}
3528
	} else {
	/* don't have a template, so start the entry with the
	* appropriate starting line
	*/
	switch (config->cfi->entryStart) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
3529	} else {	} else {
3530	newLine = addLine(new, config->cfi, LT_KERNEL,	line =
3531	config->primaryIndent,	getLineByType(LT_KERNEL | LT_MBMODULE |
3532	newKernelPath + strlen(prefix));	LT_KERNEL_EFI | LT_KERNEL_16,
3533	needs &= ~NEED_KERNEL;	entry->lines);
3534	break;	if (!line) {
3535		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3536		continue;
3537		}
3538		firstElement = 2;
3539	}	}
3540
3541	case LT_HYPER:	/* handle the elilo case which does:
3542	newLine = addLine(new, config->cfi, LT_HYPER,	*   append="hypervisor args -- kernel args"
3543	config->primaryIndent,	*/
3544	newMBKernel + strlen(prefix));	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3545	needs &= ~NEED_MB;	/* this is a multiboot entry, make sure there's
3546	break;	* -- on the args line
3547		*/
3548		for (i = firstElement; i < line->numElements; i++) {
3549		if (!strcmp(line->elements[i].item, "--"))
3550		break;
3551		}
3552		if (i == line->numElements) {
3553		/* assume all existing args are kernel args,
3554		* prepend -- to make it official
3555		*/
3556		insertElement(line, "--", firstElement,
3557		cfg->cfi);
3558		i = firstElement;
3559		}
3560		if (!multibootArgs) {
3561		/* kernel args start after the -- */
3562		firstElement = i + 1;
3563		}
3564		} else if (cfg->cfi->mbConcatArgs) {
3565		/* this is a non-multiboot entry, remove hyper args */
3566		for (i = firstElement; i < line->numElements; i++) {
3567		if (!strcmp(line->elements[i].item, "--"))
3568		break;
3569		}
3570		if (i < line->numElements) {
3571		/* remove args up to -- */
3572		while (strcmp
3573		(line->elements[firstElement].item,
3574		"--"))
3575		removeElement(line, firstElement);
3576		/* remove -- */
3577		removeElement(line, firstElement);
3578		}
3579		}
3580
3581	case LT_MENUENTRY: {	usedElements = calloc(line->numElements, sizeof(*usedElements));
3582	char *nkt = malloc(strlen(newKernelTitle)+3);
3583	strcpy(nkt, "'");	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3584	strcat(nkt, newKernelTitle);
3585	strcat(nkt, "'");	doreplace = 1;
3586	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (i = firstElement; i < line->numElements; i++) {
3587	config->primaryIndent, nkt);	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3588	free(nkt);	!strcmp(line->elements[i].item, "--")) {
3589	needs &= ~NEED_TITLE;	/* reached the end of hyper args, insert here */
3590	needs |= NEED_END;	doreplace = 0;
3591	break;	break;
3592	}	}
3593	case LT_TITLE:	if (usedElements[i])
3594	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	continue;
3595	char * templabel;	if (!argMatch(line->elements[i].item, *arg)) {
3596	int x = 0, y = 0;	usedElements[i] = 1;
3597		break;
3598	templabel = strdup(newKernelTitle);	}
3599	while( templabel[x]){	}
3600	if( templabel[x] == ' ' ){
3601	y = x;	if (i < line->numElements && doreplace) {
3602	while( templabel[y] ){	/* direct replacement */
3603	templabel[y] = templabel[y+1];	free(line->elements[i].item);
3604	y++;	line->elements[i].item = strdup(*arg);
3605	}
3606		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3607		/* root= replacement */
3608		rootLine = getLineByType(LT_ROOT, entry->lines);
3609		if (rootLine) {
3610		free(rootLine->elements[1].item);
3611		rootLine->elements[1].item =
3612		strdup(*arg + 5);
3613		} else {
3614		rootLine =
3615		addLine(entry, cfg->cfi, LT_ROOT,
3616		cfg->secondaryIndent,
3617		*arg + 5);
3618		}
3619		}
3620
3621		else {
3622		/* insert/append */
3623		insertElement(line, *arg, i, cfg->cfi);
3624		usedElements =
3625		realloc(usedElements,
3626		line->numElements *
3627		sizeof(*usedElements));
3628		memmove(&usedElements[i + 1], &usedElements[i],
3629		line->numElements - i - 1);
3630		usedElements[i] = 1;
3631
3632		/* if we updated a root= here even though
3633		* there is a LT_ROOT available we need to
3634		* remove the LT_ROOT entry (this will happen
3635		* if we switch from a device to a label) */
3636		if (useRoot && !strncmp(*arg, "root=", 5)) {
3637		rootLine =
3638		getLineByType(LT_ROOT,
3639		entry->lines);
3640		if (rootLine)
3641		removeLine(entry, rootLine);
3642	}	}
	x++;
3643	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
3644	}	}
3645	needs &= ~NEED_TITLE;
3646		free(usedElements);
3647
3648		for (arg = oldArgs; *arg; arg++) {
3649		for (i = firstElement; i < line->numElements; i++) {
3650		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3651		!strcmp(line->elements[i].item, "--"))
3652		/* reached the end of hyper args, stop here */
3653		break;
3654		if (!argMatch(line->elements[i].item, *arg)) {
3655		removeElement(line, i);
3656		break;
3657		}
3658		}
3659		/* handle removing LT_ROOT line too */
3660		if (useRoot && !strncmp(*arg, "root=", 5)) {
3661		rootLine = getLineByType(LT_ROOT, entry->lines);
3662		if (rootLine)
3663		removeLine(entry, rootLine);
3664		}
3665		}
3666
3667		if (line->numElements == 1) {
3668		/* don't need the line at all (note it has to be a
3669		LT_KERNELARGS for this to happen */
3670		removeLine(entry, line);
3671		}
3672		}
3673
3674		free(newArgs);
3675		free(oldArgs);
3676
3677		return 0;
3678		}
3679
3680		int updateImage(struct grubConfig *cfg, const char *image,
3681		const char *prefix, const char *addArgs,
3682		const char *removeArgs,
3683		const char *addMBArgs, const char *removeMBArgs)
3684		{
3685		int rc = 0;
3686
3687		if (!image)
3688		return rc;
3689
3690		/* update the main args first... */
3691		if (addArgs || removeArgs)
3692		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3693		0);
3694		if (rc)
3695		return rc;
3696
3697		/* and now any multiboot args */
3698		if (addMBArgs || removeMBArgs)
3699		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3700		removeMBArgs, 1);
3701		return rc;
3702		}
3703
3704		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3705		const char *image, const char *prefix, const char *initrd,
3706		const char *title)
3707		{
3708		struct singleEntry *entry;
3709		struct singleLine *line, *kernelLine, *endLine = NULL;
3710		int index = 0;
3711
3712		if (!image)
3713		return 0;
3714
3715		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3716		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3717		if (!kernelLine)
3718		continue;
3719
3720		/* if title is supplied, the entry's title must match it. */
3721		if (title) {
3722		char *linetitle;
3723
3724		line =
3725		getLineByType(LT_TITLE | LT_MENUENTRY,
3726		entry->lines);
3727		if (!line)
3728		continue;
3729
3730		linetitle = extractTitle(cfg, line);
3731		if (!linetitle)
3732		continue;
3733		if (strcmp(title, linetitle)) {
3734		free(linetitle);
3735		continue;
3736		}
3737		free(linetitle);
3738		}
3739
3740		if (prefix) {
3741		int prefixLen = strlen(prefix);
3742		if (!strncmp(initrd, prefix, prefixLen))
3743		initrd += prefixLen;
3744		}
3745		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3746		if (endLine)
3747		removeLine(entry, endLine);
3748		line =
3749		addLine(entry, cfg->cfi,
3750		preferredLineType(LT_MBMODULE, cfg->cfi),
3751		kernelLine->indent, initrd);
3752		if (!line)
3753		return 1;
3754		if (endLine) {
3755		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3756		if (!line)
3757		return 1;
3758		}
3759
3760	break;	break;
3761		}
3762
3763	default:	return 0;
3764	abort();	}
3765
3766		int updateInitrd(struct grubConfig *cfg, const char *image,
3767		const char *prefix, const char *initrd, const char *title)
3768		{
3769		struct singleEntry *entry;
3770		struct singleLine *line, *kernelLine, *endLine = NULL;
3771		int index = 0;
3772
3773		if (!image)
3774		return 0;
3775
3776		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3777		kernelLine =
3778		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3779		entry->lines);
3780		if (!kernelLine)
3781		continue;
3782
3783		/* if title is supplied, the entry's title must match it. */
3784		if (title) {
3785		char *linetitle;
3786
3787		line =
3788		getLineByType(LT_TITLE | LT_MENUENTRY,
3789		entry->lines);
3790		if (!line)
3791		continue;
3792
3793		linetitle = extractTitle(cfg, line);
3794		if (!linetitle)
3795		continue;
3796		if (strcmp(title, linetitle)) {
3797		free(linetitle);
3798		continue;
3799		}
3800		free(linetitle);
3801		}
3802
3803		line =
3804		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3805		entry->lines);
3806		if (line)
3807		removeLine(entry, line);
3808		if (prefix) {
3809		int prefixLen = strlen(prefix);
3810		if (!strncmp(initrd, prefix, prefixLen))
3811		initrd += prefixLen;
3812		}
3813		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3814		if (endLine)
3815		removeLine(entry, endLine);
3816		enum lineType_e lt;
3817		switch (kernelLine->type) {
3818		case LT_KERNEL:
3819		lt = LT_INITRD;
3820		break;
3821		case LT_KERNEL_EFI:
3822		lt = LT_INITRD_EFI;
3823		break;
3824		case LT_KERNEL_16:
3825		lt = LT_INITRD_16;
3826		break;
3827		default:
3828		lt = preferredLineType(LT_INITRD, cfg->cfi);
3829		}
3830		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3831		if (!line)
3832		return 1;
3833		if (endLine) {
3834		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3835		if (!line)
3836		return 1;
3837		}
3838
3839		break;
3840	}	}
	}
3841
3842	/* add the remainder of the lines, i.e. those that either	return 0;
3843	* 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;
	}
3844
3845	if (needs) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3846	printf(_("grubby: needs=%d, aborting\n"), needs);	{
3847	abort();	int fd;
3848	}	unsigned char bootSect[512];
3849		int offset;
3850
3851		fd = open(device, O_RDONLY);
3852		if (fd < 0) {
3853		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3854		device, strerror(errno));
3855		return 1;
3856		}
3857
3858	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (read(fd, bootSect, 512) != 512) {
3859	newMBKernelArgs, NULL)) return 1;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3860		device, strerror(errno));
3861		return 1;
3862		}
3863		close(fd);
3864
3865	return 0;	/* first three bytes should match, a jmp short should be in there */
3866		if (memcmp(boot, bootSect, 3))
3867		return 0;
3868
3869		if (boot[1] == JMP_SHORT_OPCODE) {
3870		offset = boot[2] + 2;
3871		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3872		offset = (boot[3] << 8) + boot[2] + 2;
3873		} else if (boot[0] == JMP_SHORT_OPCODE) {
3874		offset = boot[1] + 2;
3875		/*
3876		* it looks like grub, when copying stage1 into the mbr,
3877		* patches stage1 right after the JMP location, replacing
3878		* other instructions such as JMPs for NOOPs. So, relax the
3879		* check a little bit by skipping those different bytes.
3880		*/
3881		if ((bootSect[offset + 1] == NOOP_OPCODE)
3882		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3883		offset = offset + 3;
3884		}
3885		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3886		offset = (boot[2] << 8) + boot[1] + 2;
3887		} else {
3888		return 0;
3889		}
3890
3891		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3892		return 0;
3893
3894		return 2;
3895	}	}
3896
3897	static void traceback(int signum)	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3898	{	{
3899	void *array[40];	int fd;
3900	size_t size;	char buf[65536];
3901		char *end;
3902		char *chptr;
3903		char *chptr2;
3904		int rc;
3905
3906		/* it's on raid; we need to parse /proc/mdstat and check all of the
3907		*raw* devices listed in there */
3908
3909		if (!strncmp(mdDev, "/dev/", 5))
3910		mdDev += 5;
3911
3912		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3913		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3914		strerror(errno));
3915		return 2;
3916		}
3917
3918		rc = read(fd, buf, sizeof(buf) - 1);
3919		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3920		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3921		strerror(errno));
3922		close(fd);
3923		return 2;
3924		}
3925		close(fd);
3926		buf[rc] = '\0';
3927
3928	signal(SIGSEGV, SIG_DFL);	chptr = buf;
3929	memset(array, '\0', sizeof (array));	while (*chptr) {
3930	size = backtrace(array, 40);	end = strchr(chptr, '\n');
3931		if (!end)
3932	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	break;
3933	(unsigned long)size);	*end = '\0';
3934	backtrace_symbols_fd(array, size, STDERR_FILENO);
3935	exit(1);	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3936	}	chptr[strlen(mdDev)] == ' ') {
3937
3938	int main(int argc, const char ** argv) {	/* found the device */
3939	poptContext optCon;	while (*chptr && *chptr != ':')
3940	const char * grubConfig = NULL;	chptr++;
3941	char * outputFile = NULL;	chptr++;
3942	int arg = 0;	while (*chptr && isspace(*chptr))
3943	int flags = 0;	chptr++;
3944	int badImageOkay = 0;
3945	int configureGrub2 = 0;	/* skip the "active" bit */
3946	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	while (*chptr && !isspace(*chptr))
3947	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	chptr++;
3948	int configureExtLinux = 0;	while (*chptr && isspace(*chptr))
3949	int bootloaderProbe = 0;	chptr++;
3950	int extraInitrdCount = 0;
3951	char * updateKernelPath = NULL;	/* skip the raid level */
3952	char * newKernelPath = NULL;	while (*chptr && !isspace(*chptr))
3953	char * removeKernelPath = NULL;	chptr++;
3954	char * newKernelArgs = NULL;	while (*chptr && isspace(*chptr))
3955	char * newKernelInitrd = NULL;	chptr++;
3956	char * newKernelTitle = NULL;
3957	char * newKernelVersion = NULL;	/* everything else is partition stuff */
3958	char * newMBKernel = NULL;	while (*chptr) {
3959	char * newMBKernelArgs = NULL;	chptr2 = chptr;
3960	char * removeMBKernelArgs = NULL;	while (*chptr2 && *chptr2 != '[')
3961	char * removeMBKernel = NULL;	chptr2++;
3962	char * bootPrefix = NULL;	if (!*chptr2)
3963	char * defaultKernel = NULL;	break;
3964	char * removeArgs = NULL;
3965	char * kernelInfo = NULL;	/* yank off the numbers at the end */
3966	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	chptr2--;
3967	const char * chptr = NULL;	while (isdigit(*chptr2) && chptr2 > chptr)
3968	struct configFileInfo * cfi = NULL;	chptr2--;
3969	struct grubConfig * config;	chptr2++;
3970	struct singleEntry * template = NULL;	*chptr2 = '\0';
3971	int copyDefault = 0, makeDefault = 0;
3972	int displayDefault = 0;	/* Better, now we need the /dev/ back. We're
3973	int displayDefaultIndex = 0;	* done with everything before this point, so
3974	int displayDefaultTitle = 0;	* we can just put the /dev/ part there.
3975	struct poptOption options[] = {	* There will always be room. */
3976	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	memcpy(chptr - 5, "/dev/", 5);
3977	_("add an entry for the specified kernel"), _("kernel-path") },	rc = checkDeviceBootloader(chptr - 5, boot);
3978	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	if (rc != 2) {
3979	_("add an entry for the specified multiboot kernel"), NULL },	return rc;
3980	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	}
3981	_("default arguments for the new kernel or new arguments for "
3982	"kernel being updated"), _("args") },	chptr = chptr2 + 1;
3983	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	/* skip the [11] bit */
3984	_("default arguments for the new multiboot kernel or "	while (*chptr && !isspace(*chptr))
3985	"new arguments for multiboot kernel being updated"), NULL },	chptr++;
3986	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	/* and move to the next one */
3987	_("don't sanity check images in boot entries (for testing only)"),	while (*chptr && isspace(*chptr))
3988	NULL },	chptr++;
3989	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	}
3990	_("filestystem which contains /boot directory (for testing only)"),
3991	_("bootfs") },	/*  we're good to go */
3992	#if defined(__i386__) || defined(__x86_64__)	return 2;
3993	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	}
3994	_("check if lilo is installed on lilo.conf boot sector") },
3995	#endif	chptr = end + 1;
3996	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	}
3997	_("path to grub config file to update (\"-\" for stdin)"),
3998	_("path") },	fprintf(stderr,
3999	{ "copy-default", 0, 0, &copyDefault, 0,	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4000	_("use the default boot entry as a template for the new entry "	mdDev);
4001	"being added; if the default is not a linux image, or if "	return 0;
4002	"the kernel referenced by the default image does not exist, "	}
4003	"the first linux entry whose kernel does exist is used as the "
4004	"template"), NULL },	int checkForLilo(struct grubConfig *config)
4005	{ "debug", 0, 0, &debug, 0,	{
4006	_("print debugging information for failures") },	int fd;
4007	{ "default-kernel", 0, 0, &displayDefault, 0,	unsigned char boot[512];
4008	_("display the path of the default kernel") },	struct singleLine *line;
4009	{ "default-index", 0, 0, &displayDefaultIndex, 0,
4010	_("display the index of the default kernel") },	for (line = config->theLines; line; line = line->next)
4011	{ "default-title", 0, 0, &displayDefaultTitle, 0,	if (line->type == LT_BOOT)
4012	_("display the title of the default kernel") },	break;
4013	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4014	_("configure elilo bootloader") },	if (!line) {
4015	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	fprintf(stderr,
4016	_("configure extlinux bootloader (from syslinux)") },	_
4017	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	("grubby: no boot line found in lilo configuration\n"));
	_("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);
4018	return 1;	return 1;
	}
	break;
4019	}	}
	}
4020
4021	if (arg < -1) {	if (line->numElements != 2)
4022	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	return 1;
4023	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4024	poptStrerror(arg));	fd = open("/boot/boot.b", O_RDONLY);
4025	return 1;	if (fd < 0) {
4026	}	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4027		"/boot/boot.b", strerror(errno));
4028		return 1;
4029		}
4030
4031		if (read(fd, boot, 512) != 512) {
4032		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4033		"/boot/boot.b", strerror(errno));
4034		return 1;
4035		}
4036		close(fd);
4037
4038		if (!strncmp("/dev/md", line->elements[1].item, 7))
4039		return checkLiloOnRaid(line->elements[1].item, boot);
4040
4041		return checkDeviceBootloader(line->elements[1].item, boot);
4042		}
4043
4044		int checkForGrub2(struct grubConfig *config)
4045		{
4046		if (!access("/etc/grub.d/", R_OK))
4047		return 2;
4048
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4049	return 1;	return 1;
4050	}	}
4051
4052		int checkForGrub(struct grubConfig *config)
4053		{
4054		int fd;
4055		unsigned char bootSect[512];
4056		char *boot;
4057		int onSuse = isSuseSystem();
4058
4059		if (onSuse) {
4060		if (parseSuseGrubConf(NULL, &boot))
4061		return 0;
4062		} else {
4063		if (parseSysconfigGrub(NULL, &boot))
4064		return 0;
4065		}
4066
4067		/* assume grub is not installed -- not an error condition */
4068		if (!boot)
4069		return 0;
4070
4071		fd = open("/boot/grub/stage1", O_RDONLY);
4072		if (fd < 0)
4073		/* this doesn't exist if grub hasn't been installed */
4074		return 0;
4075
4076		if (read(fd, bootSect, 512) != 512) {
4077		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4078		"/boot/grub/stage1", strerror(errno));
4079		close(fd);
4080		return 1;
4081		}
4082		close(fd);
4083
4084		/* The more elaborate checks do not work on SuSE. The checks done
4085		* seem to be reasonble (at least for now), so just return success
4086		*/
4087		if (onSuse)
4088		return 2;
4089
4090		return checkDeviceBootloader(boot, bootSect);
4091		}
4092
4093		int checkForExtLinux(struct grubConfig *config)
4094		{
4095		int fd;
4096		unsigned char bootSect[512];
4097		char *boot;
4098		char executable[] = "/boot/extlinux/extlinux";
4099
4100		printf("entered: checkForExtLinux()\n");
4101
4102		if (parseSysconfigGrub(NULL, &boot))
4103		return 0;
4104
4105		/* assume grub is not installed -- not an error condition */
4106		if (!boot)
4107		return 0;
4108
4109		fd = open(executable, O_RDONLY);
4110		if (fd < 0)
4111		/* this doesn't exist if grub hasn't been installed */
4112		return 0;
4113
4114		if (read(fd, bootSect, 512) != 512) {
4115		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4116		executable, strerror(errno));
4117		return 1;
4118		}
4119		close(fd);
4120
4121		return checkDeviceBootloader(boot, bootSect);
4122		}
4123
4124		int checkForYaboot(struct grubConfig *config)
4125		{
4126		/*
4127		* This is a simplistic check that we consider good enough for own puporses
4128		*
4129		* If we were to properly check if yaboot is *installed* we'd need to:
4130		* 1) get the system boot device (LT_BOOT)
4131		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4132		*    the content on the boot device
4133		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4134		* 4) check again if binary and boot device contents match
4135		*/
4136		if (!access("/etc/yaboot.conf", R_OK))
4137		return 2;
4138
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4139	return 1;	return 1;
4140	} else if (bootloaderProbe && grubConfig) {	}
4141	fprintf(stderr,
4142	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4143		{
4144		if (!access("/etc/elilo.conf", R_OK))
4145		return 2;
4146
4147	return 1;	return 1;
4148	} else if (configureGrub2) {	}
	cfi = &grub2ConfigType;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
4149
4150	if (!cfi) {	static char *getRootSpecifier(char *str)
4151	#ifdef __ia64__	{
4152	cfi = &eliloConfigType;	char *idx, *rootspec = NULL;
4153	#elif __powerpc__
4154	cfi = &yabootConfigType;	if (*str == '(') {
4155	#elif __sparc__	idx = rootspec = strdup(str);
4156	cfi = &siloConfigType;	while (*idx && (*idx != ')') && (!isspace(*idx)))
4157	#elif __s390__	idx++;
4158	cfi = &ziplConfigType;	*(++idx) = '\0';
4159	#elif __s390x__	}
4160	cfi = &ziplConfigtype;	return rootspec;
4161	#else	}
4162	if (grub2FindConfig(&grub2ConfigType))
4163	cfi = &grub2ConfigType;	static char *getInitrdVal(struct grubConfig *config,
4164		const char *prefix, struct singleLine *tmplLine,
4165		const char *newKernelInitrd,
4166		const char **extraInitrds, int extraInitrdCount)
4167		{
4168		char *initrdVal, *end;
4169		int i;
4170		size_t totalSize;
4171		size_t prefixLen;
4172		char separatorChar;
4173
4174		prefixLen = strlen(prefix);
4175		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4176
4177		for (i = 0; i < extraInitrdCount; i++) {
4178		totalSize += sizeof(separatorChar);
4179		totalSize += strlen(extraInitrds[i]) - prefixLen;
4180		}
4181
4182		initrdVal = end = malloc(totalSize);
4183
4184		end = stpcpy(end, newKernelInitrd + prefixLen);
4185
4186		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4187		for (i = 0; i < extraInitrdCount; i++) {
4188		const char *extraInitrd;
4189		int j;
4190
4191		extraInitrd = extraInitrds[i] + prefixLen;
4192		/* Don't add entries that are already there */
4193		if (tmplLine != NULL) {
4194		for (j = 2; j < tmplLine->numElements; j++)
4195		if (strcmp
4196		(extraInitrd,
4197		tmplLine->elements[j].item) == 0)
4198		break;
4199
4200		if (j != tmplLine->numElements)
4201		continue;
4202		}
4203
4204		*end++ = separatorChar;
4205		end = stpcpy(end, extraInitrd);
4206		}
4207
4208		return initrdVal;
4209		}
4210
4211		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4212		const char *prefix,
4213		const char *newKernelPath, const char *newKernelTitle,
4214		const char *newKernelArgs, const char *newKernelInitrd,
4215		const char **extraInitrds, int extraInitrdCount,
4216		const char *newMBKernel, const char *newMBKernelArgs,
4217		const char *newDevTreePath, int newIndex)
4218		{
4219		struct singleEntry *new, *entry, *prev = NULL;
4220		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4221		int needs;
4222		char *indexs;
4223		char *chptr;
4224		int rc;
4225
4226		if (!newKernelPath)
4227		return 0;
4228
4229		rc = asprintf(&indexs, "%d", newIndex);
4230		if (rc < 0)
4231		return 1;
4232
4233		/* if the newKernelTitle is too long silently munge it into something
4234		* we can live with. truncating is first check, then we'll just mess with
4235		* it until it looks better */
4236		if (config->cfi->maxTitleLength &&
4237		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4238		char *buf = alloca(config->cfi->maxTitleLength + 7);
4239		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4240		int i = 1;
4241
4242		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4243		newKernelTitle);
4244		while (findEntryByPath(config, buf, NULL, NULL)) {
4245		sprintf(numBuf, "%d", i++);
4246		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4247		}
4248
4249		newKernelTitle = buf + 6;
4250		}
4251
4252		new = malloc(sizeof(*new));
4253		new->skip = 0;
4254		new->multiboot = 0;
4255		new->lines = NULL;
4256		entry = config->entries;
4257		for (unsigned int i = 0; i < newIndex; i++) {
4258		if (!entry)
4259		break;
4260		prev = entry;
4261		entry = entry->next;
4262		}
4263		new->next = entry;
4264
4265		if (prev)
4266		prev->next = new;
4267	else	else
4268	cfi = &grubConfigType;	config->entries = new;
	#endif
	}
4269
4270	if (!grubConfig) {	/* copy/update from the template */
4271	if (cfi->findConfig)	needs = NEED_KERNEL | NEED_TITLE;
4272	grubConfig = cfi->findConfig(cfi);	if (newKernelInitrd)
4273	if (!grubConfig)	needs |= NEED_INITRD;
4274	grubConfig = cfi->defaultConfig;	if (newMBKernel) {
4275	}	needs |= NEED_MB;
4276		new->multiboot = 1;
4277		}
4278		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4279		needs |= NEED_DEVTREE;
4280
4281		if (template) {
4282		for (masterLine = template->lines;
4283		masterLine && (tmplLine = lineDup(masterLine));
4284		lineFree(tmplLine), masterLine = masterLine->next) {
4285		dbgPrintf("addNewKernel processing %d\n",
4286		tmplLine->type);
4287
4288		/* skip comments */
4289		chptr = tmplLine->indent;
4290		while (*chptr && isspace(*chptr))
4291		chptr++;
4292		if (*chptr == '#')
4293		continue;
4294
4295		if (iskernel(tmplLine->type)
4296		&& tmplLine->numElements >= 2) {
4297		if (!template->multiboot && (needs & NEED_MB)) {
4298		/* it's not a multiboot template and
4299		* this is the kernel line.  Try to
4300		* be intelligent about inserting the
4301		* hypervisor at the same time.
4302		*/
4303		if (config->cfi->mbHyperFirst) {
4304		/* insert the hypervisor first */
4305		newLine =
4306		addLine(new, config->cfi,
4307		LT_HYPER,
4308		tmplLine->indent,
4309		newMBKernel +
4310		strlen(prefix));
4311		/* set up for adding the
4312		* kernel line */
4313		free(tmplLine->indent);
4314		tmplLine->indent =
4315		strdup(config->
4316		secondaryIndent);
4317		needs &= ~NEED_MB;
4318		}
4319		if (needs & NEED_KERNEL) {
4320		/* use addLineTmpl to
4321		* preserve line elements,
4322		* otherwise we could just
4323		* call addLine.
4324		* Unfortunately this means
4325		* making some changes to the
4326		* template such as the
4327		* indent change above and
4328		* the type change below.
4329		*/
4330		struct keywordTypes *mbm_kw =
4331		getKeywordByType
4332		(LT_MBMODULE, config->cfi);
4333		if (mbm_kw) {
4334		tmplLine->type =
4335		LT_MBMODULE;
4336		free(tmplLine->
4337		elements[0].item);
4338		tmplLine->elements[0].
4339		item =
4340		strdup(mbm_kw->key);
4341		}
4342		newLine =
4343		addLineTmpl(new, tmplLine,
4344		newLine,
4345		newKernelPath +
4346		strlen(prefix),
4347		config->cfi);
4348		needs &= ~NEED_KERNEL;
4349		}
4350		if (needs & NEED_MB) { /* !mbHyperFirst */
4351		newLine =
4352		addLine(new, config->cfi,
4353		LT_HYPER,
4354		config->
4355		secondaryIndent,
4356		newMBKernel +
4357		strlen(prefix));
4358		needs &= ~NEED_MB;
4359		}
4360		} else if (needs & NEED_KERNEL) {
4361		newLine =
4362		addLineTmpl(new, tmplLine, newLine,
4363		newKernelPath +
4364		strlen(prefix),
4365		config->cfi);
4366		needs &= ~NEED_KERNEL;
4367		}
4368
4369		} else if (tmplLine->type == LT_HYPER &&
4370		tmplLine->numElements >= 2) {
4371		if (needs & NEED_MB) {
4372		newLine =
4373		addLineTmpl(new, tmplLine, newLine,
4374		newMBKernel +
4375		strlen(prefix),
4376		config->cfi);
4377		needs &= ~NEED_MB;
4378		}
4379
4380		} else if (tmplLine->type == LT_MBMODULE &&
4381		tmplLine->numElements >= 2) {
4382		if (new->multiboot) {
4383		if (needs & NEED_KERNEL) {
4384		newLine =
4385		addLineTmpl(new, tmplLine,
4386		newLine,
4387		newKernelPath +
4388		strlen(prefix),
4389		config->cfi);
4390		needs &= ~NEED_KERNEL;
4391		} else if (config->cfi->mbInitRdIsModule
4392		&& (needs & NEED_INITRD)) {
4393		char *initrdVal;
4394		initrdVal =
4395		getInitrdVal(config, prefix,
4396		tmplLine,
4397		newKernelInitrd,
4398		extraInitrds,
4399		extraInitrdCount);
4400		newLine =
4401		addLineTmpl(new, tmplLine,
4402		newLine,
4403		initrdVal,
4404		config->cfi);
4405		free(initrdVal);
4406		needs &= ~NEED_INITRD;
4407		}
4408		} else if (needs & NEED_KERNEL) {
4409		/* template is multi but new is not,
4410		* insert the kernel in the first
4411		* module slot
4412		*/
4413		tmplLine->type =
4414		preferredLineType(LT_KERNEL,
4415		config->cfi);
4416		free(tmplLine->elements[0].item);
4417		tmplLine->elements[0].item =
4418		strdup(getKeywordByType
4419		(tmplLine->type,
4420		config->cfi)->key);
4421		newLine =
4422		addLineTmpl(new, tmplLine, newLine,
4423		newKernelPath +
4424		strlen(prefix),
4425		config->cfi);
4426		needs &= ~NEED_KERNEL;
4427		} else if (needs & NEED_INITRD) {
4428		char *initrdVal;
4429		/* template is multi but new is not,
4430		* insert the initrd in the second
4431		* module slot
4432		*/
4433		tmplLine->type =
4434		preferredLineType(LT_INITRD,
4435		config->cfi);
4436		free(tmplLine->elements[0].item);
4437		tmplLine->elements[0].item =
4438		strdup(getKeywordByType
4439		(tmplLine->type,
4440		config->cfi)->key);
4441		initrdVal =
4442		getInitrdVal(config, prefix,
4443		tmplLine,
4444		newKernelInitrd,
4445		extraInitrds,
4446		extraInitrdCount);
4447		newLine =
4448		addLineTmpl(new, tmplLine, newLine,
4449		initrdVal, config->cfi);
4450		free(initrdVal);
4451		needs &= ~NEED_INITRD;
4452		}
4453
4454		} else if (isinitrd(tmplLine->type)
4455		&& tmplLine->numElements >= 2) {
4456		if (needs & NEED_INITRD && new->multiboot
4457		&& !template->multiboot
4458		&& config->cfi->mbInitRdIsModule) {
4459		/* make sure we don't insert the
4460		* module initrd before the module
4461		* kernel... if we don't do it here,
4462		* it will be inserted following the
4463		* template.
4464		*/
4465		if (!needs & NEED_KERNEL) {
4466		char *initrdVal;
4467
4468		initrdVal =
4469		getInitrdVal(config, prefix,
4470		tmplLine,
4471		newKernelInitrd,
4472		extraInitrds,
4473		extraInitrdCount);
4474		newLine =
4475		addLine(new, config->cfi,
4476		LT_MBMODULE,
4477		config->
4478		secondaryIndent,
4479		initrdVal);
4480		free(initrdVal);
4481		needs &= ~NEED_INITRD;
4482		}
4483		} else if (needs & NEED_INITRD) {
4484		char *initrdVal;
4485		initrdVal =
4486		getInitrdVal(config, prefix,
4487		tmplLine,
4488		newKernelInitrd,
4489		extraInitrds,
4490		extraInitrdCount);
4491		newLine =
4492		addLineTmpl(new, tmplLine, newLine,
4493		initrdVal, config->cfi);
4494		free(initrdVal);
4495		needs &= ~NEED_INITRD;
4496		}
4497
4498		} else if (tmplLine->type == LT_MENUENTRY &&
4499		(needs & NEED_TITLE)) {
4500		requote(tmplLine, config->cfi);
4501		char *nkt = malloc(strlen(newKernelTitle) + 3);
4502		strcpy(nkt, "'");
4503		strcat(nkt, newKernelTitle);
4504		strcat(nkt, "'");
4505		newLine =
4506		addLineTmpl(new, tmplLine, newLine, nkt,
4507		config->cfi);
4508		free(nkt);
4509		needs &= ~NEED_TITLE;
4510		} else if (tmplLine->type == LT_TITLE &&
4511		(needs & NEED_TITLE)) {
4512		if (tmplLine->numElements >= 2) {
4513		newLine =
4514		addLineTmpl(new, tmplLine, newLine,
4515		newKernelTitle,
4516		config->cfi);
4517		needs &= ~NEED_TITLE;
4518		} else if (tmplLine->numElements == 1 &&
4519		config->cfi->titleBracketed) {
4520		/* addLineTmpl doesn't handle
4521		* titleBracketed */
4522		newLine =
4523		addLine(new, config->cfi, LT_TITLE,
4524		tmplLine->indent,
4525		newKernelTitle);
4526		needs &= ~NEED_TITLE;
4527		}
4528		} else if (tmplLine->type == LT_ECHO) {
4529		requote(tmplLine, config->cfi);
4530		static const char *prefix = "'Loading ";
4531		if (tmplLine->numElements > 1 &&
4532		strstr(tmplLine->elements[1].item, prefix)
4533		&& masterLine->next
4534		&& iskernel(masterLine->next->type)) {
4535		char *newTitle =
4536		malloc(strlen(prefix) +
4537		strlen(newKernelTitle) + 2);
4538
4539		strcpy(newTitle, prefix);
4540		strcat(newTitle, newKernelTitle);
4541		strcat(newTitle, "'");
4542		newLine =
4543		addLine(new, config->cfi, LT_ECHO,
4544		tmplLine->indent, newTitle);
4545		free(newTitle);
4546		} else {
4547		/* pass through other lines from the
4548		* template */
4549		newLine =
4550		addLineTmpl(new, tmplLine, newLine,
4551		NULL, config->cfi);
4552		}
4553		} else if (tmplLine->type == LT_DEVTREE &&
4554		tmplLine->numElements == 2
4555		&& newDevTreePath) {
4556		newLine =
4557		addLineTmpl(new, tmplLine, newLine,
4558		newDevTreePath + strlen(prefix),
4559		config->cfi);
4560		needs &= ~NEED_DEVTREE;
4561		} else if (tmplLine->type == LT_ENTRY_END
4562		&& needs & NEED_DEVTREE) {
4563		const char *ndtp = newDevTreePath;
4564		if (!strncmp
4565		(newDevTreePath, prefix, strlen(prefix)))
4566		ndtp += strlen(prefix);
4567		newLine = addLine(new, config->cfi, LT_DEVTREE,
4568		config->secondaryIndent,
4569		ndtp);
4570		needs &= ~NEED_DEVTREE;
4571		newLine =
4572		addLineTmpl(new, tmplLine, newLine, NULL,
4573		config->cfi);
4574		} else {
4575		/* pass through other lines from the template */
4576		newLine =
4577		addLineTmpl(new, tmplLine, newLine, NULL,
4578		config->cfi);
4579		}
4580		}
4581
4582		} else {
4583		/* don't have a template, so start the entry with the
4584		* appropriate starting line
4585		*/
4586		switch (config->cfi->entryStart) {
4587		case LT_KERNEL:
4588		case LT_KERNEL_EFI:
4589		case LT_KERNEL_16:
4590		if (new->multiboot && config->cfi->mbHyperFirst) {
4591		/* fall through to LT_HYPER */
4592		} else {
4593		newLine = addLine(new, config->cfi,
4594		preferredLineType(LT_KERNEL,
4595		config->
4596		cfi),
4597		config->primaryIndent,
4598		newKernelPath +
4599		strlen(prefix));
4600		needs &= ~NEED_KERNEL;
4601		break;
4602		}
4603
4604		case LT_HYPER:
4605		newLine = addLine(new, config->cfi, LT_HYPER,
4606		config->primaryIndent,
4607		newMBKernel + strlen(prefix));
4608		needs &= ~NEED_MB;
4609		break;
4610
4611		case LT_MENUENTRY:{
4612		char *nkt = malloc(strlen(newKernelTitle) + 3);
4613		strcpy(nkt, "'");
4614		strcat(nkt, newKernelTitle);
4615		strcat(nkt, "'");
4616		newLine =
4617		addLine(new, config->cfi, LT_MENUENTRY,
4618		config->primaryIndent, nkt);
4619		free(nkt);
4620		needs &= ~NEED_TITLE;
4621		needs |= NEED_END;
4622		break;
4623		}
4624		case LT_TITLE:
4625		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4626		char *templabel;
4627		int x = 0, y = 0;
4628
4629		templabel = strdup(newKernelTitle);
4630		while (templabel[x]) {
4631		if (templabel[x] == ' ') {
4632		y = x;
4633		while (templabel[y]) {
4634		templabel[y] =
4635		templabel[y + 1];
4636		y++;
4637		}
4638		}
4639		x++;
4640		}
4641		newLine = addLine(new, config->cfi, LT_TITLE,
4642		config->primaryIndent,
4643		templabel);
4644		free(templabel);
4645		} else {
4646		newLine = addLine(new, config->cfi, LT_TITLE,
4647		config->primaryIndent,
4648		newKernelTitle);
4649		}
4650		needs &= ~NEED_TITLE;
4651		break;
4652
4653		default:
4654		abort();
4655		}
4656		}
4657
4658		struct singleLine *endLine = NULL;
4659		endLine = getLineByType(LT_ENTRY_END, new->lines);
4660		if (endLine) {
4661		removeLine(new, endLine);
4662		needs |= NEED_END;
4663		}
4664
4665		/* add the remainder of the lines, i.e. those that either
4666		* weren't present in the template, or in the case of no template,
4667		* all the lines following the entryStart.
4668		*/
4669		if (needs & NEED_TITLE) {
4670		newLine = addLine(new, config->cfi, LT_TITLE,
4671		config->secondaryIndent, newKernelTitle);
4672		needs &= ~NEED_TITLE;
4673		}
4674		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4675		newLine = addLine(new, config->cfi, LT_HYPER,
4676		config->secondaryIndent,
4677		newMBKernel + strlen(prefix));
4678		needs &= ~NEED_MB;
4679		}
4680		if (needs & NEED_KERNEL) {
4681		newLine = addLine(new, config->cfi,
4682		(new->multiboot
4683		&& getKeywordByType(LT_MBMODULE,
4684		config->cfi))
4685		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4686		config->
4687		cfi),
4688		config->secondaryIndent,
4689		newKernelPath + strlen(prefix));
4690		needs &= ~NEED_KERNEL;
4691		}
4692		if (needs & NEED_MB) {
4693		newLine = addLine(new, config->cfi, LT_HYPER,
4694		config->secondaryIndent,
4695		newMBKernel + strlen(prefix));
4696		needs &= ~NEED_MB;
4697		}
4698		if (needs & NEED_INITRD) {
4699		char *initrdVal;
4700		initrdVal =
4701		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4702		extraInitrds, extraInitrdCount);
4703		newLine =
4704		addLine(new, config->cfi,
4705		(new->multiboot
4706		&& getKeywordByType(LT_MBMODULE, config->cfi))
4707		? LT_MBMODULE : preferredLineType(LT_INITRD,
4708		config->cfi),
4709		config->secondaryIndent, initrdVal);
4710		free(initrdVal);
4711		needs &= ~NEED_INITRD;
4712		}
4713		if (needs & NEED_DEVTREE) {
4714		newLine = addLine(new, config->cfi, LT_DEVTREE,
4715		config->secondaryIndent, newDevTreePath);
4716		needs &= ~NEED_DEVTREE;
4717		}
4718
4719		/* NEEDS_END must be last on bootloaders that need it... */
4720		if (needs & NEED_END) {
4721		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4722		config->secondaryIndent, NULL);
4723		needs &= ~NEED_END;
4724		}
4725
4726		if (needs) {
4727		printf(_("grubby: needs=%d, aborting\n"), needs);
4728		abort();
4729		}
4730
4731		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4732		newMBKernelArgs, NULL))
4733		return 1;
4734
4735		return 0;
4736		}
4737
4738		int main(int argc, const char **argv)
4739		{
4740		poptContext optCon;
4741		const char *grubConfig = NULL;
4742		char *outputFile = NULL;
4743		int arg = 0;
4744		int flags = 0;
4745		int badImageOkay = 0;
4746		int configureGrub2 = 0;
4747		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4748		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4749		int configureExtLinux = 0;
4750		int bootloaderProbe = 0;
4751		int extraInitrdCount = 0;
4752		char *updateKernelPath = NULL;
4753		char *newKernelPath = NULL;
4754		char *removeKernelPath = NULL;
4755		char *newKernelArgs = NULL;
4756		char *newKernelInitrd = NULL;
4757		char *newKernelTitle = NULL;
4758		char *newDevTreePath = NULL;
4759		char *newMBKernel = NULL;
4760		char *newMBKernelArgs = NULL;
4761		int newIndex = 0;
4762		char *removeMBKernelArgs = NULL;
4763		char *removeMBKernel = NULL;
4764		char *bootPrefix = NULL;
4765		char *defaultKernel = NULL;
4766		char *removeArgs = NULL;
4767		char *kernelInfo = NULL;
4768		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4769		char *envPath = NULL;
4770		const char *chptr = NULL;
4771		struct configFileInfo *cfi = NULL;
4772		struct grubConfig *config;
4773		struct singleEntry *template = NULL;
4774		int copyDefault = 0, makeDefault = 0;
4775		int displayDefault = 0;
4776		int displayDefaultIndex = 0;
4777		int displayDefaultTitle = 0;
4778		int defaultIndex = -1;
4779		struct poptOption options[] = {
4780		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4781		_("add an entry for the specified kernel"), _("kernel-path")},
4782		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4783		_("add an entry for the specified multiboot kernel"), NULL},
4784		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4785		_("default arguments for the new kernel or new arguments for "
4786		"kernel being updated"), _("args")},
4787		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4788		_("default arguments for the new multiboot kernel or "
4789		"new arguments for multiboot kernel being updated"), NULL},
4790		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4791		_
4792		("don't sanity check images in boot entries (for testing only)"),
4793		NULL},
4794		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4795		_
4796		("filesystem which contains /boot directory (for testing only)"),
4797		_("bootfs")},
4798		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4799		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4800		_("check which bootloader is installed on boot sector")},
4801		#endif
4802		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4803		_("path to grub config file to update (\"-\" for stdin)"),
4804		_("path")},
4805		{"copy-default", 0, 0, &copyDefault, 0,
4806		_("use the default boot entry as a template for the new entry "
4807		"being added; if the default is not a linux image, or if "
4808		"the kernel referenced by the default image does not exist, "
4809		"the first linux entry whose kernel does exist is used as the "
4810		"template"), NULL},
4811		{"debug", 0, 0, &debug, 0,
4812		_("print debugging information for failures")},
4813		{"default-kernel", 0, 0, &displayDefault, 0,
4814		_("display the path of the default kernel")},
4815		{"default-index", 0, 0, &displayDefaultIndex, 0,
4816		_("display the index of the default kernel")},
4817		{"default-title", 0, 0, &displayDefaultTitle, 0,
4818		_("display the title of the default kernel")},
4819		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4820		_("device tree file for new stanza"), _("dtb-path")},
4821		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4822		_("device tree directory for new stanza"), _("dtb-path")},
4823		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4824		_("configure elilo bootloader")},
4825		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4826		_("force grub2 stanzas to use efi")},
4827		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4828		_("path for environment data"),
4829		_("path")},
4830		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4831		_("configure extlinux bootloader (from syslinux)")},
4832		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4833		_("configure grub bootloader")},
4834		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4835		_("configure grub2 bootloader")},
4836		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4837		_("display boot information for specified kernel"),
4838		_("kernel-path")},
4839		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4840		_("initrd image for the new kernel"), _("initrd-path")},
4841		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4842		_
4843		("auxiliary initrd image for things other than the new kernel"),
4844		_("initrd-path")},
4845		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4846		_("configure lilo bootloader")},
4847		{"make-default", 0, 0, &makeDefault, 0,
4848		_("make the newly added entry the default boot entry"), NULL},
4849		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4850		_("path to output updated config file (\"-\" for stdout)"),
4851		_("path")},
4852		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4853		_("remove kernel arguments"), NULL},
4854		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4855		_("remove multiboot kernel arguments"), NULL},
4856		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4857		_("remove all entries for the specified kernel"),
4858		_("kernel-path")},
4859		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4860		_("remove all entries for the specified multiboot kernel"),
4861		NULL},
4862		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4863		_("make the first entry referencing the specified kernel "
4864		"the default"), _("kernel-path")},
4865		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4866		_("make the given entry index the default entry"),
4867		_("entry-index")},
4868		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4869		_("use the given index when creating a new entry"),
4870		_("entry-index")},
4871		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4872		_("configure silo bootloader")},
4873		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4874		_("title to use for the new kernel entry"), _("entry-title")},
4875		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4876		_("updated information for the specified kernel"),
4877		_("kernel-path")},
4878		{"version", 'v', 0, NULL, 'v',
4879		_("print the version of this program and exit"), NULL},
4880		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4881		_("configure yaboot bootloader")},
4882		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4883		_("configure zipl bootloader")},
4884		POPT_AUTOHELP {0, 0, 0, 0, 0}
4885		};
4886
4887		useextlinuxmenu = 0;
4888
4889		int i = 0;
4890		for (int j = 1; j < argc; j++)
4891		i += strlen(argv[j]) + 1;
4892		saved_command_line = malloc(i);
4893		if (!saved_command_line) {
4894		fprintf(stderr, "grubby: %m\n");
4895		exit(1);
4896		}
4897		saved_command_line[0] = '\0';
4898		for (int j = 1; j < argc; j++) {
4899		strcat(saved_command_line, argv[j]);
4900		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4901		}
4902
4903		optCon = poptGetContext("grubby", argc, argv, options, 0);
4904		poptReadDefaultConfig(optCon, 1);
4905
4906		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4907		switch (arg) {
4908		case 'v':
4909		printf("grubby version %s\n", VERSION);
4910		exit(0);
4911		break;
4912		case 'i':
4913		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4914		extraInitrds[extraInitrdCount++] =
4915		strdup(poptGetOptArg(optCon));
4916		} else {
4917		fprintf(stderr,
4918		_
4919		("grubby: extra initrd maximum is %d\n"),
4920		extraInitrdCount);
4921		return 1;
4922		}
4923		break;
4924		}
4925		}
4926
4927		if (arg < -1) {
4928		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4929		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4930		poptStrerror(arg));
4931		return 1;
4932		}
4933
4934	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if ((chptr = poptGetArg(optCon))) {
4935	newKernelPath || removeKernelPath || makeDefault ||	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4936	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	return 1;
4937	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	}
4938
4939		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
4940		configureYaboot + configureSilo + configureZipl +
4941		configureExtLinux) > 1) {
4942		fprintf(stderr,
4943		_("grubby: cannot specify multiple bootloaders\n"));
4944		return 1;
4945		} else if (bootloaderProbe && grubConfig) {
4946		fprintf(stderr,
4947		_
4948		("grubby: cannot specify config file with --bootloader-probe\n"));
4949		return 1;
4950		} else if (configureGrub2) {
4951		cfi = &grub2ConfigType;
4952		if (envPath)
4953		cfi->envFile = envPath;
4954		} else if (configureLilo) {
4955		cfi = &liloConfigType;
4956		} else if (configureGrub) {
4957		cfi = &grubConfigType;
4958		} else if (configureELilo) {
4959		cfi = &eliloConfigType;
4960		} else if (configureYaboot) {
4961		cfi = &yabootConfigType;
4962		} else if (configureSilo) {
4963		cfi = &siloConfigType;
4964		} else if (configureZipl) {
4965		cfi = &ziplConfigType;
4966		} else if (configureExtLinux) {
4967		cfi = &extlinuxConfigType;
4968		useextlinuxmenu = 1;
4969		}
4970
4971		if (!cfi) {
4972		if (grub2FindConfig(&grub2ConfigType)) {
4973		cfi = &grub2ConfigType;
4974		if (envPath)
4975		cfi->envFile = envPath;
4976		} else
4977		#ifdef __ia64__
4978		cfi = &eliloConfigType;
4979		#elif __powerpc__
4980		cfi = &yabootConfigType;
4981		#elif __sparc__
4982		cfi = &siloConfigType;
4983		#elif __s390__
4984		cfi = &ziplConfigType;
4985		#elif __s390x__
4986		cfi = &ziplConfigtype;
4987		#else
4988		cfi = &grubConfigType;
4989		#endif
4990		}
4991
4992		if (!grubConfig) {
4993		if (cfi->findConfig)
4994		grubConfig = cfi->findConfig(cfi);
4995		if (!grubConfig)
4996		grubConfig = cfi->defaultConfig;
4997		}
4998
4999		if (bootloaderProbe && (displayDefault || kernelInfo ||
5000		newKernelPath || removeKernelPath || makeDefault
5001		|| defaultKernel || displayDefaultIndex
5002		|| displayDefaultTitle
5003		|| (defaultIndex >= 0))) {
5004		fprintf(stderr,
5005		_("grubby: --bootloader-probe may not be used with "
5006	"specified option"));	"specified option"));
5007	return 1;	return 1;
5008	}	}
5009
5010	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5011	removeKernelPath)) {	removeKernelPath)) {
5012	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5013	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5014	return 1;	return 1;
5015	}	}
5016
5017	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5018	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5019	return 1;	return 1;
5020	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5021	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5022	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5023	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5024	return 1;	return 1;
5025	}	}
5026
5027	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5028	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5029	"not be used together"));	"not be used together"));
5030	return 1;	return 1;
5031	}	}
5032
5033	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5034	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5035		"may not be used together\n"));
5036		return 1;
5037		} else if (defaultKernel && removeKernelPath &&
5038		!strcmp(defaultKernel, removeKernelPath)) {
5039		fprintf(stderr,
5040		_("grubby: cannot make removed kernel the default\n"));
5041		return 1;
5042		} else if (defaultKernel && newKernelPath &&
5043		!strcmp(defaultKernel, newKernelPath)) {
5044		makeDefault = 1;
5045		defaultKernel = NULL;
5046		} else if (defaultKernel && (defaultIndex >= 0)) {
5047		fprintf(stderr,
5048		_("grubby: --set-default and --set-default-index "
5049	"may not be used together\n"));	"may not be used together\n"));
5050	return 1;	return 1;
5051	} else if (defaultKernel && removeKernelPath &&	}
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
5052
5053	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5054	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5055	"is used\n"));	_("grubby: output file must be specified if stdin "
5056	return 1;	"is used\n"));
5057	}	return 1;
5058		}
5059
5060	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5061	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5062	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5063	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5064	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5065	}	return 1;
5066		}
5067
5068	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5069
5070	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5071	if (!bootPrefix) {	if (!bootPrefix) {
5072	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5073	if (!bootPrefix) return 1;	if (!bootPrefix)
5074	} else {	return 1;
5075	/* this shouldn't end with a / */	} else {
5076	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5077	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5078		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5079		}
5080		} else {
5081		bootPrefix = "";
5082	}	}
	} else {
	bootPrefix = "";
	}
5083
5084	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5085	extraInitrdCount > 0) {	fprintf(stderr,
5086	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5087	return 1;	cfi->defaultConfig);
5088	}	return 1;
5089		}
5090
5091	if (bootloaderProbe) {	if (bootloaderProbe) {
5092	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5093	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5094
5095	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5096	if (grub2config) {	if (grub2config) {
5097	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5098	if (!gconfig)	if (!gconfig)
5099	gr2c = 1;	gr2c = 1;
5100	else	else
5101	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5102	}	}
	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");
5103
5104	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5105	}	if (!access(grubconfig, F_OK)) {
5106		gconfig = readConfig(grubconfig, &grubConfigType);
5107		if (!gconfig)
5108		grc = 1;
5109		else
5110		grc = checkForGrub(gconfig);
5111		}
5112
5113	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5114	if (!config) return 1;	lconfig =
5115		readConfig(liloConfigType.defaultConfig,
5116		&liloConfigType);
5117		if (!lconfig)
5118		lrc = 1;
5119		else
5120		lrc = checkForLilo(lconfig);
5121		}
5122
5123	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5124	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5125	struct singleEntry * entry;	&eliloConfigType);
5126	char * rootspec;	if (!econfig)
5127		erc = 1;
5128	if (config->defaultImage == -1) return 0;	else
5129	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5130	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));
5131
5132	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5133		lconfig =
5134		readConfig(extlinuxConfigType.defaultConfig,
5135		&extlinuxConfigType);
5136		if (!lconfig)
5137		extrc = 1;
5138		else
5139		extrc = checkForExtLinux(lconfig);
5140		}
5141
5142	} else if (displayDefaultTitle) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5143	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5144	struct singleEntry * entry;	&yabootConfigType);
5145		if (!yconfig)
5146	if (config->defaultImage == -1) return 0;	yrc = 1;
5147	entry = findEntryByIndex(config, config->defaultImage);	else
5148	if (!entry) return 0;	yrc = checkForYaboot(yconfig);
5149		}
5150	if (!configureGrub2) {
5151	line = getLineByType(LT_TITLE, entry->lines);	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5152	if (!line) return 0;	|| erc == 1)
5153	printf("%s\n", line->elements[1].item);	return 1;
5154
5155	} else {	if (lrc == 2)
5156	char * title;	printf("lilo\n");
5157		if (gr2c == 2)
5158	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	printf("grub2\n");
5159	line = getLineByType(LT_MENUENTRY, entry->lines);	if (grc == 2)
5160	if (!line) return 0;	printf("grub\n");
5161	title = grub2ExtractTitle(line);	if (extrc == 2)
5162	if (title)	printf("extlinux\n");
5163	printf("%s\n", title);	if (yrc == 2)
5164		printf("yaboot\n");
5165		if (erc == 2)
5166		printf("elilo\n");
5167
5168		return 0;
5169	}	}
	return 0;
5170
5171	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5172	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5173	printf("%i\n", config->defaultImage);	exit(1);
5174		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5175
5176	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5177	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5178	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5179	bootPrefix, flags);
5180	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5181	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5182	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5183	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5184	if (updateInitrd(config, updateKernelPath, bootPrefix,
5185	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5186	}	return 0;
5187	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5188	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5189	extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5190	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5191		if (!entry)
5192		return 0;
5193	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5194	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5195	"Not writing out new config.\n"));
5196	return 1;	line =
5197	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5198		LT_KERNEL_16, entry->lines);
5199		if (!line)
5200		return 0;
5201
5202		rootspec = getRootSpecifier(line->elements[1].item);
5203		printf("%s%s\n", bootPrefix, line->elements[1].item +
5204		((rootspec != NULL) ? strlen(rootspec) : 0));
5205
5206		return 0;
5207
5208		} else if (displayDefaultTitle) {
5209		struct singleLine *line;
5210		struct singleEntry *entry;
5211
5212		if (config->defaultImage == NO_DEFAULT_ENTRY)
5213		return 0;
5214		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5215		cfi->defaultIsSaved)
5216		config->defaultImage = FIRST_ENTRY_INDEX;
5217		entry = findEntryByIndex(config, config->defaultImage);
5218		if (!entry)
5219		return 0;
5220
5221		if (!configureGrub2) {
5222		char *title;
5223		line = getLineByType(LT_TITLE, entry->lines);
5224		if (!line)
5225		return 0;
5226		title = extractTitle(config, line);
5227		if (!title)
5228		return 0;
5229		printf("%s\n", title);
5230		free(title);
5231		} else {
5232		char *title;
5233
5234		dbgPrintf
5235		("This is GRUB2, default title is embeded in menuentry\n");
5236		line = getLineByType(LT_MENUENTRY, entry->lines);
5237		if (!line)
5238		return 0;
5239		title = grub2ExtractTitle(line);
5240		if (title)
5241		printf("%s\n", title);
5242		}
5243		return 0;
5244
5245		} else if (displayDefaultIndex) {
5246		if (config->defaultImage == NO_DEFAULT_ENTRY)
5247		return 0;
5248		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5249		cfi->defaultIsSaved)
5250		config->defaultImage = FIRST_ENTRY_INDEX;
5251		printf("%i\n", config->defaultImage);
5252		return 0;
5253
5254		} else if (kernelInfo)
5255		return displayInfo(config, kernelInfo, bootPrefix);
5256
5257		if (copyDefault) {
5258		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5259		if (!template)
5260		return 1;
5261		}
5262
5263		markRemovedImage(config, removeKernelPath, bootPrefix);
5264		markRemovedImage(config, removeMBKernel, bootPrefix);
5265		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5266		makeDefault, bootPrefix, flags, defaultIndex);
5267		setFallbackImage(config, newKernelPath != NULL);
5268		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5269		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5270		return 1;
5271		if (updateKernelPath && newKernelInitrd) {
5272		if (newMBKernel) {
5273		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5274		bootPrefix, newKernelInitrd,
5275		newKernelTitle))
5276		return 1;
5277		} else {
5278		if (updateInitrd(config, updateKernelPath, bootPrefix,
5279		newKernelInitrd, newKernelTitle))
5280		return 1;
5281		}
5282		}
5283		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5284		newKernelTitle, newKernelArgs, newKernelInitrd,
5285		(const char **)extraInitrds, extraInitrdCount,
5286		newMBKernel, newMBKernelArgs, newDevTreePath,
5287		newIndex))
5288		return 1;
5289
5290		if (numEntries(config) == 0) {
5291		fprintf(stderr,
5292		_("grubby: doing this would leave no kernel entries. "
5293		"Not writing out new config.\n"));
5294		return 1;
5295		}
5296
5297	if (!outputFile)	if (!outputFile)
5298	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5299
5300	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5301	}	}

---

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Legend: Removed from v.1750   changed lines   Added in v.3018