Diff of /tags/grubby-8_40_20170627/grubby.c

Parent Directory | Revision Log | Patch

	revision 1747 by niro, Sat Feb 18 01:06:48 2012 UTC	revision 3025 by niro, Tue Jun 27 14:42:27 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140		#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/etc/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
200	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	};	{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
248	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
249	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
250	"/boot/grub/grub.cfg",	};
251	NULL
252	};	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static int i = -1;	{
254	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256	if (i == -1) {	"/boot/grub/grub.cfg",
257	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
258	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
259	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
	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 = 0,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785	}	}
786
787	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
789	if (kt)	{
790	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
791	return "unknown";	switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812	}	}
813
814	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	if (!blkid)	struct configFileInfo *cfi)
816	blkid_get_cache(&blkid, NULL);	{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822		}
823
824	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825		{
826		struct keywordTypes *kt = getKeywordByType(type, cfi);
827		if (kt)
828		return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
841	struct configFileInfo * cfi) {	{
842	struct keywordTypes * kw;	if (!blkid)
843	for (kw = cfi->keywords; kw->key; kw++) {	blkid_get_cache(&blkid, NULL);
	if (!strcmp(keyword, kw->key))
	return kw->type;
	}
	return LT_UNKNOWN;
	}
844
845	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;
846	}	}
847
848	static int isBracketedTitle(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
849	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct configFileInfo *cfi)
850	int len = strlen(line->elements[0].item);	{
851	if (*(line->elements[0].item + len - 1) == ']') {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	/* FIXME: this is a hack... */	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return kw->type;
854	return 1;	}
855	}	return LT_UNKNOWN;
	}
	}
	return 0;
856	}	}
857
858	static int isEntryStart(struct singleLine * line,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct configFileInfo * cfi) {	struct singleLine *line)
860	return line->type == cfi->entryStart || line->type == LT_OTHER ||	{
861	(cfi->titleBracketed && isBracketedTitle(line));	dbgPrintf("getLineByType(%d): ", type);
862		for (; line; line = line->next) {
863		dbgPrintf("%d:%s ", line->type,
864		line->numElements ? line->elements[0].
865		item : "(empty)");
866		if (line->type & type)
867		break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	/* extract the title from within brackets (for zipl) */	static int isBracketedTitle(struct singleLine *line)
874	static char * extractTitle(struct singleLine * line) {	{
875	/* bracketed title... let's extract it (leaks a byte) */	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	char * title;	int len = strlen(line->elements[0].item);
877	title = strdup(line->elements[0].item);	if (*(line->elements[0].item + len - 1) == ']') {
878	title++;	/* FIXME: this is a hack... */
879	*(title + strlen(title) - 1) = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	return title;	return 1;
881	}	}
882		}
883	static int readFile(int fd, char ** bufPtr) {	}
884	int alloced = 0, size = 0, i = 0;	return 0;
885	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';
886
887	*bufPtr = buf;	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888		{
889		return line->type == cfi->entryStart || line->type == LT_OTHER ||
890		(cfi->titleBracketed && isBracketedTitle(line));
891		}
892
893	return 0;	/* extract the title from within brackets (for zipl) */
894		static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895		{
896		/* bracketed title... let's extract it */
897		char *title = NULL;
898		if (line->type == LT_TITLE) {
899		char *tmp = line->elements[cfg->cfi->titlePosition].item;
900		if (cfg->cfi->titleBracketed) {
901		tmp++;
902		title = strdup(tmp);
903		*(title + strlen(title) - 1) = '\0';
904		} else {
905		title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912	}	}
913
914	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
915	line->indent = NULL;	{
916	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
917	line->numElements = 0;	char *buf = NULL;
	line->next = NULL;
	}
	struct singleLine * lineDup(struct singleLine * line) {
	int i;
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
918
919	return newLine;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineFree(struct singleLine * line) {	if (i < 0) {
928	int i;	fprintf(stderr, _("error reading input: %s\n"),
929		strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
935		if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
942
943	if (line->elements) free(line->elements);	return 0;
	lineInit(line);
944	}	}
945
946	static int lineWrite(FILE * out, struct singleLine * line,	static void lineInit(struct singleLine *line)
947	struct configFileInfo * cfi) {	{
948	int i;	line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953		}
954
955	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *lineDup(struct singleLine *line)
956		{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->next = NULL;
961	if (fputc('"', out) == EOF) return -1;	newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < newLine->numElements; i++) {
967	if (i < line->numElements - 1)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971		return newLine;
972		}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191	line->elements[i].indent = strdup("");	}
1192	p = line->elements[i].item;	line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (!sawEntry && line->numElements) {	}
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1325
1326	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	entry->multiboot = 0;	sawEntry = 1;
1328	entry->lines = NULL;	if (!entry) {
1329	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	if (line->type == LT_SET_VARIABLE) {	entry->next = malloc(sizeof(*entry));
1333	int i;	entry = entry->next;
1334	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	}
	dbgPrintf("%s", line->indent);
	for (i = 0; i < line->numElements; i++)
	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1335
1336	for (i = 1; i < line->numElements; i++) {	entry->skip = 0;
1337	strcat(buf, line->elements[i].item);	entry->multiboot = 0;
1338	free(line->elements[i].item);	entry->lines = NULL;
1339		entry->next = NULL;
1340		}
1341
1342	if ((i + 1) != line->numElements) {	if (line->type == LT_SET_VARIABLE) {
1343	strcat(buf, line->elements[i].indent);	dbgPrintf("found 'set' command (%d elements): ",
1344	free(line->elements[i].indent);	line->numElements);
1345	}	dbgPrintf("%s", line->indent);
1346	}	for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	line->elements[1].indent =	line->elements[i].indent);
1349	line->elements[line->numElements - 1].indent;	dbgPrintf("\n");
1350	line->elements[1].item = buf;	struct keywordTypes *kwType =
1351	line->numElements = 2;	getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {	&& !strcmp(line->elements[1].item, kwType->key)
1354	/* Strip off any " which may be present; they'll be put back	&& !is_special_grub2_variable(
1355	on write. This is one of the few (the only?) places that grubby	line->elements[2].item)) {
1356	canonicalizes the output */	dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	if (line->numElements >= 2) {	defaultLine = line;
1359	int last, len;	}
1360		} else if (iskernel(line->type)) {
1361	if (*line->elements[1].item == '"')	/* if by some freak chance this is multiboot and the
1362	memmove(line->elements[1].item, line->elements[1].item + 1,	* "module" lines came earlier in the template, make
1363	strlen(line->elements[1].item + 1) + 1);	* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365	last = line->numElements - 1;	if (entry && entry->multiboot)
1366	len = strlen(line->elements[last].item) - 1;	line->type = LT_HYPER;
	if (line->elements[last].item[len] == '"')
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1367
1368	if (sawEntry) {	} else if (line->type == LT_MBMODULE) {
1369	if (!entry->lines)	/* go back and fix the LT_KERNEL line to indicate
1370	entry->lines = line;	* LT_HYPER instead, now that we know this is a
1371	else	* multiboot entry.  This only applies to grub, but
1372	last->next = line;	* that's the only place we should find LT_MBMODULE
1373	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	* lines anyway.
1374		*/
1375	/* we could have seen this outside of an entry... if so, we	for (struct singleLine * l = entry->lines; l;
1376	* ignore it like any other line we don't grok */	l = l->next) {
1377	if (line->type == LT_ENTRY_END && sawEntry)	if (l->type == LT_HYPER)
1378	sawEntry = 0;	break;
1379	} else {	else if (iskernel(l->type)) {
1380	if (!cfg->theLines)	l->type = LT_HYPER;
1381	cfg->theLines = line;	break;
1382	else	}
1383	last->next = line;	}
1384	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	entry->multiboot = 1;
	}
1385
1386	last = line;	} else if (line->type == LT_HYPER) {
1387	}	entry->multiboot = 1;
1388
1389	free(incoming);	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	for (int i = 1; i < line->numElements; i++) {
1409	if (defaultLine) {	strcat(buf, line->elements[i].item);
1410	if (cfi->defaultIsVariable) {	free(line->elements[i].item);
1411	char *value = defaultLine->elements[2].item;
1412	while (*value && (*value == '"' || *value == '\'' ||	if ((i + 1) != line->numElements) {
1413	*value == ' ' || *value == '\t'))	strcat(buf, line->elements[i].indent);
1414	value++;	free(line->elements[i].indent);
1415	cfg->defaultImage = strtol(value, &end, 10);	}
1416	while (*end && (*end == '"' || *end == '\'' ||	}
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1417
1418	if (entry){	line->elements[1].indent =
1419	cfg->defaultImage = i;	line->elements[line->numElements - 1].indent;
1420	}else{	line->elements[1].item = buf;
1421	cfg->defaultImage = -1;	line->numElements = 2;
1422	}	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	}	/* let --remove-kernel="TITLE=what" work */
1424	} else {	len = 0;
1425	cfg->defaultImage = 0;	char *extras;
1426	}	char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	return cfg;	/* allocate mem for extra flags. */
1438	}	extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	static void writeDefault(FILE * out, char * indent,	len = strlen(title);
1456	char * separator, struct grubConfig * cfg) {	if (title[len - 1] == quote_char) {
1457	struct singleEntry * entry;	strncat(buf, title, len - 1);
1458	struct singleLine * line;	break;
1459	int i;	} else {
1460		strcat(buf, title);
1461	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	strcat(buf, line->elements[i].indent);
1462		}
1463	if (cfg->defaultImage == DEFAULT_SAVED)	}
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1464
1465	entry = cfg->entries;	/* get extras */
1466	while (entry && entry->skip) entry = entry->next;	int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	i = 0;	if (!strcmp
1476	while (entry && i < image) {	(line->elements[i].item, "menuentry"))
1477	entry = entry->next;	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	while (entry && entry->skip) entry = entry->next;	len = strlen(line->elements[i].item);
	i++;
	}
1488
1489	if (!entry) return;	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	line = getLineByType(LT_TITLE, entry->lines);	/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (line && line->numElements >= 2)	if (isquote(*line->elements[1].item))
1511	fprintf(out, "%sdefault%s%s\n", indent, separator,	memmove(line->elements[1].item,
1512	line->elements[1].item);	line->elements[1].item + 1,
1513	else if (line && (line->numElements == 1) &&	strlen(line->elements[1].item +
1514	cfg->cfi->titleBracketed) {	1) + 1);
1515	fprintf(out, "%sdefault%s%s\n", indent, separator,
1516	extractTitle(line));	last = line->numElements - 1;
1517	}	len = strlen(line->elements[last].item) - 1;
1518	}	if (isquote(line->elements[last].item[len]))
1519	}	line->elements[last].item[len] = '\0';
1520	}	}
1521		}
1522
1523	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	FILE * out;	defaultLine = line;
1526	struct singleLine * line;	}
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1527
1528	line = cfg->theLines;	/* If we find a generic config option which should live at the
1529	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	top of the file, move it there. Old versions of grubby were
1530	while (line) {	probably responsible for putting new images in the wrong
1531	if (line->type == LT_SET_VARIABLE && defaultKw &&	place in front of it anyway. */
1532	line->numElements == 3 &&	if (sawEntry && line->type == LT_GENERIC) {
1533	!strcmp(line->elements[1].item, defaultKw->key)) {	struct singleLine **l = &cfg->theLines;
1534	writeDefault(out, line->indent, line->elements[0].indent, cfg);	struct singleLine **last_nonws = &cfg->theLines;
1535	needs &= ~MAIN_DEFAULT;	while (*l) {
1536	} else if (line->type == LT_DEFAULT) {	if ((*l)->type != LT_WHITESPACE)
1537	writeDefault(out, line->indent, line->elements[0].indent, cfg);	last_nonws = &((*l)->next);
1538	needs &= ~MAIN_DEFAULT;	l = &((*l)->next);
1539	} else if (line->type == LT_FALLBACK) {	}
1540	if (cfg->fallbackImage > -1)	line->next = *last_nonws;
1541	fprintf(out, "%s%s%s%d\n", line->indent,	*last_nonws = line;
1542	line->elements[0].item, line->elements[0].indent,	movedLine = 1;
1543	cfg->fallbackImage);	continue; /* without setting 'last' */
1544	} else {	}
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1545
1546	line = line->next;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1558	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1559	needs &= ~MAIN_DEFAULT;	entry->lines = line;
1560	}	else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	i = 0;	/* we could have seen this outside of an entry... if
1566	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1567	if (entry->skip) continue;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	line = entry->lines;	last = line;
	while (line) {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
1580	}	}
	}
1581
1582	if (tmpOutName) {	free(incoming);
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
	}
	}
1583
1584	return 0;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	}	if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673	static int numEntries(struct grubConfig *cfg) {	if (entry) {
1674	int i = 0;	cfg->defaultImage = i;
1675	struct singleEntry * entry;	} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677	entry = cfg->entries;	}
1678	while (entry) {	}
1679	if (!entry->skip)	} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680	i++;	char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681	entry = entry->next;	if (defTitle) {
1682	}	int index = 0;
1683	return i;	if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701		{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824		outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828		tmpOutName = alloca(strlen(outName) + 2);
1829		sprintf(tmpOutName, "%s-", outName);
1830		out = fopen(tmpOutName, "w");
1831		if (!out) {
1832		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833		tmpOutName, strerror(errno));
1834		return 1;
1835		}
1836
1837		if (!stat(outName, &sb)) {
1838		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850		line = cfg->theLines;
1851		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852		while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881		line = line->next;
1882		}
1883
1884		if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889		i = 0;
1890		while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908		if (tmpOutName) {
1909		if (rename(tmpOutName, outName)) {
1910		fprintf(stderr,
1911		_("grubby: error moving %s to %s: %s\n"),
1912		tmpOutName, outName, strerror(errno));
1913		unlink(outName);
1914		return 1;
1915		}
1916		}
1917
1918		return 0;
1919		}
1920
1921		static int numEntries(struct grubConfig *cfg)
1922		{
1923		int i = 0;
1924		struct singleEntry *entry;
1925
1926		entry = cfg->entries;
1927		while (entry) {
1928		if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931		}
1932		return i;
1933	}	}
1934
1935	static char *findDiskForRoot()	static char *findDiskForRoot()
1936	{	{
1937	int fd;	int fd;
1938	char buf[65536];	char buf[65536];
1939	char *devname;	char *devname;
1940	char *chptr;	char *chptr;
1941	int rc;	int rc;
1942
1943		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944		fprintf(stderr, "grubby: failed to open %s: %s\n",
1945		_PATH_MOUNTED, strerror(errno));
1946		return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955		}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1961
1962	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1963	if (rc <= 0) {	devname = chptr;
1964	fprintf(stderr, "grubby: failed to read %s: %s\n",
1965	_PATH_MOUNTED, strerror(errno));	/*
1966	close(fd);	* The first column of a mtab entry is the device, but if the
1967	return NULL;	* entry is a special device it won't start with /, so move
1968	}	* on to the next line.
1969	close(fd);	*/
1970	buf[rc] = '\0';	if (*devname != '/') {
1971	chptr = buf;	chptr = strchr(chptr, '\n');
1972		if (chptr)
1973	while (chptr && chptr != buf+rc) {	chptr++;
1974	devname = chptr;	continue;
1975		}
1976	/*
1977	* The first column of a mtab entry is the device, but if the entry is a	/* Seek to the next space */
1978	* special device it won't start with /, so move on to the next line.	chptr = strchr(chptr, ' ');
1979	*/	if (!chptr) {
1980	if (*devname != '/') {	fprintf(stderr, "grubby: error parsing %s: %s\n",
1981	chptr = strchr(chptr, '\n');	_PATH_MOUNTED, strerror(errno));
1982	if (chptr)	return NULL;
1983	chptr++;	}
1984	continue;
1985	}	/*
1986		* The second column of a mtab entry is the mount point, we
1987	/* Seek to the next space */	* are looking for '/' obviously.
1988	chptr = strchr(chptr, ' ');	*/
1989	if (!chptr) {	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990	fprintf(stderr, "grubby: error parsing %s: %s\n",	/* remember the last / entry in mtab */
1991	_PATH_MOUNTED, strerror(errno));	foundanswer = devname;
1992	return NULL;	}
1993	}
1994		/* Next line */
1995	/*	chptr = strchr(chptr, '\n');
1996	* The second column of a mtab entry is the mount point, we are looking	if (chptr)
1997	* for '/' obviously.	chptr++;
1998	*/	}
1999	if (*(++chptr) == '/' && *(++chptr) == ' ') {
2000	/*	/* Return the last / entry found */
2001	* Move back 2, which is the first space after the device name, set	if (foundanswer) {
2002	* it to \0 so strdup will just get the devicename.	chptr = strchr(foundanswer, ' ');
2003	*/	*chptr = '\0';
2004	chptr -= 2;	return strdup(foundanswer);
2005	*chptr = '\0';	}
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
2006
2007	return NULL;	return NULL;
2008	}	}
2009
2010	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
2011	int i;	{
2012	struct singleLine * line;	int i;
2013		struct singleLine *line;
2014
2015	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2016	fprintf(stderr, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2017	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2018	fprintf(stderr, "%s%s",	/* Need to handle this, because we strip the quotes from
2019	line->elements[i].item, line->elements[i].indent);	* menuentry when read it. */
2020		if (line->type == LT_MENUENTRY && i == 1) {
2021		if (!isquote(*line->elements[i].item))
2022		log_message(f, "\'%s\'",
2023		line->elements[i].item);
2024		else
2025		log_message(f, "%s",
2026		line->elements[i].item);
2027		log_message(f, "%s", line->elements[i].indent);
2028
2029		continue;
2030		}
2031
2032		log_message(f, "%s%s",
2033		line->elements[i].item,
2034		line->elements[i].indent);
2035		}
2036		log_message(f, "\n");
2037	}	}
	fprintf(stderr, "\n");
	}
2038	}	}
2039
2040	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042	{	{
2043	va_list argp;	static int once;
2044		va_list argp, argq;
2045
2046	if (!debug)	va_start(argp, fmt);
	return;
2047
2048	va_start(argp, fmt);	va_copy(argq, argp);
2049	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2050	vfprintf(stderr, fmt, argp);	log_time(NULL);
2051	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2052	va_end(argp);	}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079	}	}
2080
2081	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1457  static int endswith(const char *s, char	Line 2084  static int endswith(const char *s, char
2084	{	{
2085	int slen;	int slen;
2086
2087	if (!s && !s[0])	if (!s || !s[0])
2088	return 0;	return 0;
2089	slen = strlen(s) - 1;	slen = strlen(s) - 1;
2090
2091	return s[slen] == c;	return s[slen] == c;
2092	}	}
2093
2094	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int skipRemoved, int flags) {	int skipRemoved, int flags)
2096	struct singleLine * line;	{
2097	char * fullName;	struct singleLine *line;
2098	int i;	char *fullName;
2099	char * dev;	int i;
2100	char * rootspec;	char *dev;
2101	char * rootdev;	char *rootspec;
2102		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2103
2104	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2105	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	notSuitablePrintf(entry, "no line found\n");	return 0;
2107	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2108
2109	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2110		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111		entry->lines);
2112		if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120		}
2121
2122	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2124	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2125	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2126
2127	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2128	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2129		rootspec = getRootSpecifier(line->elements[1].item);
2130		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132		beginswith(line->elements[1].item + rootspec_offset, '/');
2133		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135		if (access(fullName, R_OK)) {
2136		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137		return 0;
2138		}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144	} else {	} else {
2145	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2146	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2147	*/
2148	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2149		dev = line->elements[1].item;
2150	/* failed to find one */	} else {
2151	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2152	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153	return 0;	* for the args, so check that too.
2154	}	*/
2155		line =
2156	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2158	if (i < line->numElements)
2159	dev = line->elements[i].item + 5;	/* failed to find one */
2160	else {	if (!line) {
2161	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2162	/* it failed too...  can't find root= */	return 0;
2163	return 0;	}
2164	}
2165		for (i = 1; i < line->numElements; i++)
2166		if (!strncasecmp
2167		(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements)
2170		dev = line->elements[i].item + 5;
2171		else {
2172		notSuitablePrintf(entry, 0,
2173		"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
	}
2179
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2180	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2189	if (!rootdev) {	if (!rootdev) {
2190	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2191	return 0;	return 0;
2192	}	}
2193
2194	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2196	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2197	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2198	return 0;	free(rootdev);
2199	}	return 0;
2200		}
2201
2202	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2204	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2205	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2206	return 0;	free(rootdev);
2207	}	return 0;
2208		}
2209
2210	free(rootdev);	free(rootdev);
2211		notSuitablePrintf(entry, 1, "\n");
2212
2213	return 1;	return 1;
2214	}	}
2215
2216	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2217	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2218	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2220	int * index) {	int *index)
2221	struct singleEntry * entry = NULL;	{
2222	struct singleLine * line;	struct singleEntry *entry = NULL;
2223	int i;	struct singleLine *line;
2224	char * chptr;	int i;
2225	char * rootspec = NULL;	char *chptr;
2226	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228	if (isdigit(*kernel)) {
2229	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231	i = 0;
2232	indexVars[i] = strtol(kernel, &chptr, 10);	i = 0;
2233	while (*chptr == ',') {	indexVars[i] = strtol(kernel, &chptr, 10);
2234	i++;	while (*chptr == ',') {
2235	kernel = chptr + 1;	i++;
2236	indexVars[i] = strtol(kernel, &chptr, 10);	kernel = chptr + 1;
2237	}	indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	if (*chptr) {	if (*chptr) {
2241	/* can't parse it, bail */	/* can't parse it, bail */
2242	return NULL;	return NULL;
2243	}	}
2244
2245	indexVars[i + 1] = -1;	indexVars[i + 1] = -1;
	i = 0;
	if (index) {
	while (i < *index) i++;
	if (indexVars[i] == -1) return NULL;
	}
2246
2247	entry = findEntryByIndex(config, indexVars[i]);	i = 0;
2248	if (!entry) return NULL;	if (index) {
2249		while (i < *index) {
2250		i++;
2251		if (indexVars[i] == -1)
2252		return NULL;
2253		}
2254		}
2255
2256	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	entry = findEntryByIndex(config, indexVars[i]);
2257	if (!line) return NULL;	if (!entry)
2258		return NULL;
2259
2260		line =
2261		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262		LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269		}
2270
2271		if (!strcmp(kernel, "DEFAULT")) {
2272		if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274		} else {
2275		entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287		while ((entry = findEntryByIndex(config, i))) {
2288		if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	if (index) *index = indexVars[i];	if (entry && index)
2294	return entry;	*index = i;
2295	}	} else {
2296		if (index)
2297	if (!strcmp(kernel, "DEFAULT")) {	i = *index;
2298	if (index && *index > config->defaultImage) {	else
2299	entry = NULL;	i = 0;
2300	} else {
2301	entry = findEntryByIndex(config, config->defaultImage);	if (!strncmp(kernel, "TITLE=", 6)) {
2302	if (entry && entry->skip)	prefix = "";
2303	entry = NULL;	checkType = LT_TITLE | LT_MENUENTRY;
2304	else if (index)	kernel += 6;
2305	*index = config->defaultImage;	}
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2306
2307	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2308	if (!entry->skip) break;	entry = entry->next, i++) {
2309	i++;	if (entry->skip)
2310	}	continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346	if (entry && index)	/* make sure this entry has a kernel identifier; this skips
2347	*index = i;	* non-Linux boot entries (could find netbsd etc, though, which is
2348	} else {	* unfortunate)
2349	if (index)	*/
2350	i = *index;	if (line
2351	else	&& getLineByType(LT_KERNEL | LT_HYPER |
2352	i = 0;	LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357	if (!strncmp(kernel, "TITLE=", 6)) {	if (index)
2358	prefix = "";	*index = i;
	checkType = LT_TITLE;
	kernel += 6;
2359	}	}
2360
2361	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	return entry;
2362	if (entry->skip) continue;	}
	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);
	/* check all the lines matching checkType */
	for (line = entry->lines; line; line = line->next) {
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
2363
2364	if (line && line->numElements >= 2) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	rootspec = getRootSpecifier(line->elements[1].item);	int *index)
2366	if (!strcmp(line->elements[1].item +	{
2367	((rootspec != NULL) ? strlen(rootspec) : 0),	struct singleEntry *entry;
2368	kernel + strlen(prefix)))	struct singleLine *line;
2369		int i;
2370		char *newtitle;
2371
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373		if (index && i < *index)
2374		continue;
2375		line = getLineByType(LT_TITLE, entry->lines);
2376		if (!line)
2377		line = getLineByType(LT_MENUENTRY, entry->lines);
2378		if (!line)
2379		continue;
2380		newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382		continue;
2383		if (!strcmp(title, newtitle))
2384	break;	break;
	}
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2385	}	}
2386
2387	if (index) *index = i;	if (!entry)
2388	}	return NULL;
2389
2390	return entry;	if (index)
2391		*index = i;
2392		return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398
2399	entry = cfg->entries;	entry = cfg->entries;
2400	while (index && entry) {	while (index && entry) {
2401	entry = entry->next;	entry = entry->next;
2402	index--;	index--;
2403	}	}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1702  struct singleEntry * findEntryByIndex(st	Line 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->defaultImage > -1) {
2419	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2420	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2421	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2422	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423		if (defTitle) {
2424		int index = 0;
2425		if (isnumber(defTitle)) {
2426		index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467		return entry;
2468		}
2469
2470	return entry;	index++;
2471	}	}
2472
2473	index++;	fprintf(stderr,
2474	}	_("grubby fatal error: unable to find a suitable template\n"));
	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		struct singleEntry *entry;
	if (!image) return;
	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
	entry->skip = 1;
	}
	void setDefaultImage(struct grubConfig * config, int hasNew,
	const char * defaultKernelPath, int newIsDefault,
	const char * prefix, int flags) {
	struct singleEntry * entry, * entry2, * newDefault;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if (config->defaultImage == DEFAULT_SAVED)
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2504
2505	if (entry && !entry->skip) {	if (!image)
2506	/* we can preserve the default */	return;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
	}
2507
2508	void setFallbackImage(struct grubConfig * config, int hasNew) {	/* check and see if we're removing the default image */
2509	struct singleEntry * entry, * entry2;	if (isdigit(*image)) {
2510	int j;	entry = findEntryByPath(cfg, image, prefix, NULL);
2511		if (entry)
2512	if (config->fallbackImage == -1) return;	entry->skip = 1;
2513		return;
2514	entry = findEntryByIndex(config, config->fallbackImage);	}
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2515
2516	if (hasNew)	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	config->fallbackImage++;	entry->skip = 1;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
2518	}	}
2519
2520	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	struct singleLine * line;	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	char * root = NULL;	const char *prefix, int flags,
2523	int i;	int newDefaultBootEntryIndex, int newBootEntryIndex)
2524		{
2525	printf("index=%d\n", index);	struct singleEntry *bootEntry, *newDefault;
2526		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2527
2528	printf("kernel=%s%s\n", prefix, line->elements[1].item);	/* handle the two cases where the user explictly picks the default
2529		* boot entry index as it would exist post-modification */
2530
2531	if (line->numElements >= 3) {	/* Case 1: user chose to make the latest boot entry the default */
2532	printf("args=\"");	if (newBootEntryIsDefault) {
2533	i = 2;	config->defaultImage = newBootEntryIndex;
2534	while (i < line->numElements) {	return;
2535	if (!strncmp(line->elements[i].item, "root=", 5)) {	}
2536	root = line->elements[i].item + 5;
2537	} else {	/* Case 2: user picked an arbitrary index as the default boot entry */
2538	printf("%s%s", line->elements[i].item,	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2539	line->elements[i].indent);	&& config->cfi->defaultIsIndex) {
2540	}	indexToVerify = newDefaultBootEntryIndex;
2541
2542		/* user chose to make latest boot entry the default */
2543		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2544		config->defaultImage = newBootEntryIndex;
2545		return;
2546		}
2547
2548	i++;	/* the user picks the default index based on the
2549	}	* order of the bootloader configuration after
2550	printf("\"\n");	* modification; ensure we are checking for the
2551	} else {	* existence of the correct entry */
2552	line = getLineByType(LT_KERNELARGS, entry->lines);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2553	if (line) {	if (!config->isModified)
2554	char * s;	indexToVerify--;
2555		}
2556
2557	printf("args=\"");	/* verify the user selected index will exist */
2558	i = 1;	if (findEntryByIndex(config, indexToVerify)) {
2559	while (i < line->numElements) {	config->defaultImage = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
2560	} else {	} else {
2561	s = line->elements[i].item;	config->defaultImage = NO_DEFAULT_ENTRY;
	printf("%s%s", s, line->elements[i].indent);
2562	}	}
2563
2564	i++;	return;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
2565	}	}
	}
2566
2567	if (!root) {	/* handle cases where the index value may shift */
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2568
2569	if (root) {	/* check validity of existing default or first-entry-found
2570	char * s = alloca(strlen(root) + 1);	selection */
2571		if (defaultKernelPath) {
2572	strcpy(s, root);	/* user requested first-entry-found */
2573	if (s[strlen(s) - 1] == '"')	if (!findEntryByPath(config, defaultKernelPath,
2574	s[strlen(s) - 1] = '\0';	prefix, &firstKernelEntryIndex)) {
2575	/* make sure the root doesn't have a trailing " */	/* don't change default if can't find match */
2576	printf("root=%s\n", s);	config->defaultImage = NO_DEFAULT_ENTRY;
2577	}	return;
2578		}
2579
2580	line = getLineByType(LT_INITRD, entry->lines);	config->defaultImage = firstKernelEntryIndex;
2581
2582	if (line && line->numElements >= 2) {	/* this is where we start looking for decrement later */
2583	printf("initrd=%s", prefix);	currentLookupIndex = config->defaultImage;
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
	}
2584
2585	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	if (isAddingBootEntry && !config->isModified &&
2586	FILE * in;	(newBootEntryIndex < config->defaultImage)) {
2587	char buf[1024];	/* increment because new entry added before default */
2588	char * chptr;	config->defaultImage++;
2589	char * start;	}
2590	char * param;	} else {
2591		/* use pre-existing default entry */
2592	in = fopen("/etc/conf.d/grub", "r");	currentLookupIndex = config->defaultImage;
	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);
	}
2593
2594	fclose(in);	if (isAddingBootEntry
2595		&& (newBootEntryIndex <= config->defaultImage)) {
2596		config->defaultImage++;
2597
2598	return 0;	if (config->isModified) {
2599	}	currentLookupIndex++;
2600		}
2601		}
2602		}
2603
2604	void dumpSysconfigGrub(void) {	/* sanity check - is this entry index valid? */
2605	char * boot;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
	}
2606
2607	int displayInfo(struct grubConfig * config, char * kernel,	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2608	const char * prefix) {	/* entry is to be skipped or is invalid */
2609	int i = 0;	if (isAddingBootEntry) {
2610	struct singleEntry * entry;	config->defaultImage = newBootEntryIndex;
2611	struct singleLine * line;	return;
2612		}
2613	entry = findEntryByPath(config, kernel, prefix, &i);	newDefault =
2614	if (!entry) {	findTemplate(config, prefix, &config->defaultImage, 1,
2615	fprintf(stderr, _("grubby: kernel not found\n"));	flags);
2616	return 1;	if (!newDefault) {
2617	}	config->defaultImage = NO_DEFAULT_ENTRY;
2618		}
2619
2620	/* this is a horrible hack to support /etc/conf.d/grub; there must	return;
	be a better way */
	if (config->cfi == &grubConfigType) {
	dumpSysconfigGrub();
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
2621	}	}
2622
2623	line = getLineByType(LT_LBA, config->theLines);	currentLookupIndex--;
	if (line) printf("lba\n");
	}
2624
2625	displayEntry(entry, prefix, i);	/* decrement index by the total number of entries deleted */
2626
2627	i++;	for (indexToVerify = currentLookupIndex;
2628	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	displayEntry(entry, prefix, i);
	i++;
	}
2629
2630	return 0;	bootEntry = findEntryByIndex(config, indexToVerify);
	}
2631
2632	struct singleLine * addLineTmpl(struct singleEntry * entry,	if (bootEntry && bootEntry->skip) {
2633	struct singleLine * tmplLine,	config->defaultImage--;
2634	struct singleLine * prevLine,	}
	const char * val,
	struct configFileInfo * cfi)
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[1]
	*/
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
2635	}	}
2636	}	}
2637
2638	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	void setFallbackImage(struct grubConfig *config, int hasNew)
2639	newLine->elements[0].item : "");	{
2640		struct singleEntry *entry, *entry2;
2641		int j;
2642
2643	if (!entry->lines) {	if (config->fallbackImage == -1)
2644	/* first one on the list */	return;
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
	}
2645
2646	/* val may be NULL */	entry = findEntryByIndex(config, config->fallbackImage);
2647	struct singleLine *  addLine(struct singleEntry * entry,	if (!entry || entry->skip) {
2648	struct configFileInfo * cfi,	config->fallbackImage = -1;
2649	enum lineType_e type, char * defaultIndent,	return;
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
2650	}	}
	}
	/* The last non-empty line gives us the indention to us and the line
	to insert after. Note that comments are considered empty lines, which
	may not be ideal? If there are no lines or we are looking at the
	first line, we use defaultIndent (the first line is normally indented
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
	struct singleLine *menuEntry;
	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
	return addLineTmpl(entry, &tmpl, prev, val, cfi);
	}
	void removeLine(struct singleEntry * entry, struct singleLine * line) {
	struct singleLine * prev;
	int i;
	for (i = 0; i < line->numElements; i++) {
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
	if (line == entry->lines) {
	entry->lines = line->next;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2651
2652	free(line);	if (hasNew)
2653	}	config->fallbackImage++;
2654
2655	static int isquote(char q)	/* count the number of entries erased before this one */
2656	{	for (j = 0; j < config->fallbackImage; j++) {
2657	if (q == '\'' || q == '\"')	entry2 = findEntryByIndex(config, j);
2658	return 1;	if (entry2->skip)
2659	return 0;	config->fallbackImage--;
2660		}
2661	}	}
2662
2663	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2664	{	{
2665	struct singleLine newLine = {	struct singleLine *line;
2666	.indent = tmplLine->indent,	char *root = NULL;
2667	.type = tmplLine->type,	int i;
2668	.next = tmplLine->next,	int j;
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {
	/* move the end-of-line forward */
	line->elements[insertHere].indent =
	line->elements[insertHere-1].indent;
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
2669
2670	line->numElements++;	printf("index=%d\n", index);
2671
2672	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	line =
2673	line->elements[0].item,	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2674	line->elements[insertHere].item,	entry->lines);
2675	line->elements[insertHere].indent,	if (!line) {
2676	insertHere);	printf("non linux entry\n");
2677	}	return;
2678		}
2679
2680	static void removeElement(struct singleLine * line, int removeHere) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2681	int i;	printf("kernel=%s\n", line->elements[1].item);
2682		else
2683		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2684
2685	/* sanity check */	if (line->numElements >= 3) {
2686	if (removeHere >= line->numElements) return;	printf("args=\"");
2687		i = 2;
2688		while (i < line->numElements) {
2689		if (!strncmp(line->elements[i].item, "root=", 5)) {
2690		root = line->elements[i].item + 5;
2691		} else {
2692		printf("%s%s", line->elements[i].item,
2693		line->elements[i].indent);
2694		}
2695
2696	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	i++;
2697	removeHere, line->elements[removeHere].item);	}
2698		printf("\"\n");
2699		} else {
2700		line = getLineByType(LT_KERNELARGS, entry->lines);
2701		if (line) {
2702		char *s;
2703
2704		printf("args=\"");
2705		i = 1;
2706		while (i < line->numElements) {
2707		if (!strncmp
2708		(line->elements[i].item, "root=", 5)) {
2709		root = line->elements[i].item + 5;
2710		} else {
2711		s = line->elements[i].item;
2712
2713	free(line->elements[removeHere].item);	printf("%s%s", s,
2714		line->elements[i].indent);
2715		}
2716
2717	if (removeHere > 1) {	i++;
2718	/* 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);
	}
2719
2720	/* now collapse the array, but don't bother to realloc smaller */	s = line->elements[i - 1].indent;
2721	for (i = removeHere; i < line->numElements - 1; i++)	printf("\"\n");
2722	line->elements[i] = line->elements[i + 1];	}
	line->numElements--;
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements;
	int doreplace;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
2723	}	}
	}
2724
2725	if (!removeArgs) {	if (!root) {
2726	oldArgs = malloc(sizeof(*oldArgs));	line = getLineByType(LT_ROOT, entry->lines);
2727	*oldArgs = NULL;	if (line && line->numElements >= 2)
2728	} else {	root = line->elements[1].item;
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2729	}	}
	}
2730
2731		if (root) {
2732		char *s = alloca(strlen(root) + 1);
2733
2734	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	strcpy(s, root);
2735	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	if (s[strlen(s) - 1] == '"')
2736		s[strlen(s) - 1] = '\0';
2737	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	/* make sure the root doesn't have a trailing " */
2738	&& !multibootArgs);	printf("root=%s\n", s);
2739		}
2740
2741	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	line =
2742		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2743		entry->lines);
2744
2745	if (multibootArgs && !entry->multiboot)	if (line && line->numElements >= 2) {
2746	continue;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2747		printf("initrd=");
2748		else
2749		printf("initrd=%s", prefix);
2750
2751	/* Determine where to put the args.  If this config supports	for (i = 1; i < line->numElements; i++)
2752	* LT_KERNELARGS, use that.  Otherwise use	printf("%s%s", line->elements[i].item,
2753	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	line->elements[i].indent);
2754	*/	printf("\n");
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
2755	}	}
2756
2757	/* handle the elilo case which does:	line = getLineByType(LT_TITLE, entry->lines);
2758	*   append="hypervisor args -- kernel args"	if (line) {
2759	*/	printf("title=%s\n", line->elements[1].item);
2760	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	} else {
2761	/* this is a multiboot entry, make sure there's	char *title;
2762	* -- on the args line	line = getLineByType(LT_MENUENTRY, entry->lines);
2763	*/	if (line) {
2764	for (i = firstElement; i < line->numElements; i++) {	title = grub2ExtractTitle(line);
2765	if (!strcmp(line->elements[i].item, "--"))	if (title)
2766	break;	printf("title=%s\n", title);
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
	if (i < line->numElements && doreplace) {
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
	/* root= replacement */
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
2767	}	}
2768	}	}
2769
2770	else {	for (j = 0, line = entry->lines; line; line = line->next) {
2771	/* insert/append */	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2772	insertElement(line, *arg, i, cfg->cfi);	if (!strncmp
2773	usedElements = realloc(usedElements, line->numElements *	(prefix, line->elements[1].item, strlen(prefix)))
2774	sizeof(*usedElements));	printf("mbmodule%d=", j);
2775	memmove(&usedElements[i + 1], &usedElements[i],	else
2776	line->numElements - i - 1);	printf("mbmodule%d=%s", j, prefix);
2777	usedElements[i] = 1;
2778		for (i = 1; i < line->numElements; i++)
2779	/* if we updated a root= here even though there is a	printf("%s%s", line->elements[i].item,
2780	LT_ROOT available we need to remove the LT_ROOT entry	line->elements[i].indent);
2781	(this will happen if we switch from a device to a label) */	printf("\n");
2782	if (useRoot && !strncmp(*arg, "root=", 5)) {	j++;
2783	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);
2784	}	}
2785	}	}
2786
2787	free(newArgs);	int isSuseSystem(void)
2788	free(oldArgs);	{
2789		const char *path;
2790		const static char default_path[] = "/etc/SuSE-release";
2791
2792	return 0;	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2793	}	path = default_path;
2794
2795	int updateImage(struct grubConfig * cfg, const char * image,	if (!access(path, R_OK))
	const char * prefix, const char * addArgs,
	const char * removeArgs,
	const char * addMBArgs, const char * removeMBArgs) {
	int rc = 0;
	if (!image) return rc;
	/* update the main args first... */
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
2796	return 1;	return 1;
2797		return 0;
2798		}
2799
2800		int isSuseGrubConf(const char *path)
2801		{
2802		FILE *grubConf;
2803		char *line = NULL;
2804		size_t len = 0, res = 0;
2805
2806		grubConf = fopen(path, "r");
2807		if (!grubConf) {
2808		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2809		path);
2810		return 0;
2811	}	}
2812
2813	break;	while ((res = getline(&line, &len, grubConf)) != -1) {
2814	}	if (!strncmp(line, "setup", 5)) {
2815		fclose(grubConf);
2816		free(line);
2817		return 1;
2818		}
2819		}
2820
2821	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2822		path);
2823
2824		fclose(grubConf);
2825		free(line);
2826		return 0;
2827	}	}
2828
2829	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2830	int fd;	{
2831	unsigned char bootSect[512];	FILE *grubConf;
2832	int offset;	char *line = NULL;
2833		size_t res = 0, len = 0;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2834
2835	if (read(fd, bootSect, 512) != 512) {	if (!path)
2836	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	return 1;
2837	device, strerror(errno));	if (!lbaPtr)
2838	return 1;	return 1;
	}
	close(fd);
2839
2840	/* first three bytes should match, a jmp short should be in there */	grubConf = fopen(path, "r");
2841	if (memcmp(boot, bootSect, 3))	if (!grubConf)
2842	return 0;	return 1;
2843
2844	if (boot[1] == JMP_SHORT_OPCODE) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2845	offset = boot[2] + 2;	if (line[res - 1] == '\n')
2846	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	line[res - 1] = '\0';
2847	offset = (boot[3] << 8) + boot[2] + 2;	else if (len > res)
2848	} else if (boot[0] == JMP_SHORT_OPCODE) {	line[res] = '\0';
2849	offset = boot[1] + 2;	else {
2850	/*	line = realloc(line, res + 1);
2851	* it looks like grub, when copying stage1 into the mbr, patches stage1	line[res] = '\0';
2852	* right after the JMP location, replacing other instructions such as	}
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
2853
2854	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (!strncmp(line, "setup", 5)) {
2855	return 0;	if (strstr(line, "--force-lba")) {
2856		*lbaPtr = 1;
2857		} else {
2858		*lbaPtr = 0;
2859		}
2860		dbgPrintf("lba: %i\n", *lbaPtr);
2861		break;
2862		}
2863		}
2864
2865	return 2;	free(line);
2866		fclose(grubConf);
2867		return 0;
2868	}	}
2869
2870	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2871	int fd;	{
2872	char buf[65536];	FILE *grubConf;
2873	char * end;	char *line = NULL;
2874	char * chptr;	size_t res = 0, len = 0;
2875	char * chptr2;	char *lastParamPtr = NULL;
2876	int rc;	char *secLastParamPtr = NULL;
2877		char installDeviceNumber = '\0';
2878	/* it's on raid; we need to parse /proc/mdstat and check all of the	char *bounds = NULL;
	*raw* devices listed in there */
	if (!strncmp(mdDev, "/dev/", 5))
	mdDev += 5;
2879
2880	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!path)
2881	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	return 1;
2882	strerror(errno));	if (!devicePtr)
2883	return 2;	return 1;
	}
2884
2885	rc = read(fd, buf, sizeof(buf) - 1);	grubConf = fopen(path, "r");
2886	if (rc < 0 || rc == (sizeof(buf) - 1)) {	if (!grubConf)
2887	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	return 1;
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2888
2889	chptr = buf;	while ((res = getline(&line, &len, grubConf)) != -1) {
2890	while (*chptr) {	if (strncmp(line, "setup", 5))
2891	end = strchr(chptr, '\n');	continue;
2892	if (!end) break;
2893	*end = '\0';	if (line[res - 1] == '\n')
2894		line[res - 1] = '\0';
2895		else if (len > res)
2896		line[res] = '\0';
2897		else {
2898		line = realloc(line, res + 1);
2899		line[res] = '\0';
2900		}
2901
2902	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	lastParamPtr = bounds = line + res;
	chptr[strlen(mdDev)] == ' ') {
2903
2904	/* found the device */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2905	while (*chptr && *chptr != ':') chptr++;	while (!isspace(*lastParamPtr))
2906	chptr++;	lastParamPtr--;
2907	while (*chptr && isspace(*chptr)) chptr++;	lastParamPtr++;
2908
2909	/* skip the "active" bit */	secLastParamPtr = lastParamPtr - 2;
2910	while (*chptr && !isspace(*chptr)) chptr++;	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2911	while (*chptr && isspace(*chptr)) chptr++;
2912		if (lastParamPtr + 3 > bounds) {
2913	/* skip the raid level */	dbgPrintf("lastParamPtr going over boundary");
2914	while (*chptr && !isspace(*chptr)) chptr++;	fclose(grubConf);
2915	while (*chptr && isspace(*chptr)) chptr++;	free(line);
2916		return 1;
2917	/* everything else is partition stuff */	}
2918	while (*chptr) {	if (!strncmp(lastParamPtr, "(hd", 3))
2919	chptr2 = chptr;	lastParamPtr += 3;
2920	while (*chptr2 && *chptr2 != '[') chptr2++;	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2921	if (!*chptr2) break;
2922		/*
2923	/* yank off the numbers at the end */	* Second last parameter will decide wether last parameter is
2924	chptr2--;	* an IMAGE_DEVICE or INSTALL_DEVICE
2925	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	*/
2926	chptr2++;	while (!isspace(*secLastParamPtr))
2927	*chptr2 = '\0';	secLastParamPtr--;
2928		secLastParamPtr++;
2929	/* Better, now we need the /dev/ back. We're done with
2930	* everything before this point, so we can just put	if (secLastParamPtr + 3 > bounds) {
2931	* the /dev/ part there. There will always be room. */	dbgPrintf("secLastParamPtr going over boundary");
2932	memcpy(chptr - 5, "/dev/", 5);	fclose(grubConf);
2933	rc = checkDeviceBootloader(chptr - 5, boot);	free(line);
2934	if (rc != 2) {	return 1;
2935	return rc;	}
2936	}	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2937		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2938	chptr = chptr2 + 1;	secLastParamPtr += 3;
2939	/* skip the [11] bit */	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2940	while (*chptr && !isspace(*chptr)) chptr++;	installDeviceNumber = *secLastParamPtr;
2941	/* and move to the next one */	} else {
2942	while (*chptr && isspace(*chptr)) chptr++;	installDeviceNumber = *lastParamPtr;
2943	}	}
2944
2945	/*  we're good to go */	*devicePtr = malloc(6);
2946	return 2;	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2947		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2948		fclose(grubConf);
2949		free(line);
2950		return 0;
2951	}	}
2952
2953	chptr = end + 1;	free(line);
2954	}	fclose(grubConf);
2955		return 1;
	fprintf(stderr,
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
2956	}	}
2957
2958	int checkForLilo(struct grubConfig * config) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2959	int fd;	{
2960	unsigned char boot[512];	FILE *deviceMap;
2961	struct singleLine * line;	char *line = NULL;
2962		size_t res = 0, len = 0;
2963	for (line = config->theLines; line; line = line->next)	char *devicePtr;
2964	if (line->type == LT_BOOT) break;	char *bounds = NULL;
2965		const char *path;
2966	if (!line) {	const static char default_path[] = "/boot/grub/device.map";
2967	fprintf(stderr,
2968	_("grubby: no boot line found in lilo configuration\n"));	if (!device)
2969	return 1;	return 1;
2970	}	if (!bootPtr)
2971		return 1;
2972
2973	if (line->numElements != 2) return 1;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2974		path = default_path;
2975
2976	fd = open("/boot/boot.b", O_RDONLY);	dbgPrintf("opening grub device.map file from: %s\n", path);
2977	if (fd < 0) {	deviceMap = fopen(path, "r");
2978	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	if (!deviceMap)
2979	"/boot/boot.b", strerror(errno));	return 1;
	return 1;
	}
2980
2981	if (read(fd, boot, 512) != 512) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
2982	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (!strncmp(line, "#", 1))
2983	"/boot/boot.b", strerror(errno));	continue;
2984	return 1;
2985	}	if (line[res - 1] == '\n')
2986	close(fd);	line[res - 1] = '\0';
2987		else if (len > res)
2988		line[res] = '\0';
2989		else {
2990		line = realloc(line, res + 1);
2991		line[res] = '\0';
2992		}
2993
2994	if (!strncmp("/dev/md", line->elements[1].item, 7))	devicePtr = line;
2995	return checkLiloOnRaid(line->elements[1].item, boot);	bounds = line + res;
2996
2997	return checkDeviceBootloader(line->elements[1].item, boot);	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2998	}	devicePtr++;
2999		dbgPrintf("device: %s\n", devicePtr);
3000
3001		if (!strncmp(devicePtr, device, strlen(device))) {
3002		devicePtr += strlen(device);
3003		while (isspace(*devicePtr)
3004		&& ((devicePtr + 1) <= bounds))
3005		devicePtr++;
3006
3007	int checkForGrub2(struct grubConfig * config) {	*bootPtr = strdup(devicePtr);
3008	if (!access("/etc/grub.d/", R_OK))	break;
3009	return 2;	}
3010		}
3011
3012	return 1;	free(line);
3013		fclose(deviceMap);
3014		return 0;
3015	}	}
3016
3017	int checkForGrub(struct grubConfig * config) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3018	int fd;	{
3019	unsigned char bootSect[512];	char *grubDevice;
	char * boot;
3020
3021	if (parseSysconfigGrub(NULL, &boot))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3022	return 0;	dbgPrintf("error looking for grub installation device\n");
3023		else
3024		dbgPrintf("grubby installation device: %s\n", grubDevice);
3025
3026	/* assume grub is not installed -- not an error condition */	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3027	if (!boot)	dbgPrintf("error looking for grub boot device\n");
3028	return 0;	else
3029		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3030
3031	fd = open("/boot/grub/stage1", O_RDONLY);	free(grubDevice);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3032	return 0;	return 0;
3033		}
3034
3035	if (read(fd, bootSect, 512) != 512) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3036	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3037	"/boot/grub/stage1", strerror(errno));	/*
3038	close(fd);	* This SuSE grub configuration file at this location is not your
3039	return 1;	* average grub configuration file, but instead the grub commands
3040	}	* used to setup grub on that system.
3041	close(fd);	*/
3042		const char *path;
3043		const static char default_path[] = "/etc/grub.conf";
3044
3045	return checkDeviceBootloader(boot, bootSect);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3046	}	path = default_path;
3047
3048	int checkForExtLinux(struct grubConfig * config) {	if (!isSuseGrubConf(path))
3049	int fd;	return 1;
	unsigned char bootSect[512];
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
3050
3051	printf("entered: checkForExtLinux()\n");	if (lbaPtr) {
3052		*lbaPtr = 0;
3053		if (suseGrubConfGetLba(path, lbaPtr))
3054		return 1;
3055		}
3056
3057	if (parseSysconfigGrub(NULL, &boot))	if (bootPtr) {
3058	return 0;	*bootPtr = NULL;
3059		suseGrubConfGetBoot(path, bootPtr);
3060		}
3061
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3062	return 0;	return 0;
3063		}
3064
3065	fd = open(executable, O_RDONLY);	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3066	if (fd < 0)	{
3067	/* this doesn't exist if grub hasn't been installed */	FILE *in;
3068	return 0;	char buf[1024];
3069		char *chptr;
3070		char *start;
3071		char *param;
3072
3073	if (read(fd, bootSect, 512) != 512) {	in = fopen("/etc/sysconfig/grub", "r");
3074	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (!in)
3075	executable, strerror(errno));	return 1;
	return 1;
	}
	close(fd);
3076
3077	return checkDeviceBootloader(boot, bootSect);	if (lbaPtr)
3078	}	*lbaPtr = 0;
3079		if (bootPtr)
3080		*bootPtr = NULL;
3081
3082		while (fgets(buf, sizeof(buf), in)) {
3083		start = buf;
3084		while (isspace(*start))
3085		start++;
3086		if (*start == '#')
3087		continue;
3088
3089		chptr = strchr(start, '=');
3090		if (!chptr)
3091		continue;
3092		chptr--;
3093		while (*chptr && isspace(*chptr))
3094		chptr--;
3095		chptr++;
3096		*chptr = '\0';
3097
3098		param = chptr + 1;
3099		while (*param && isspace(*param))
3100		param++;
3101		if (*param == '=') {
3102		param++;
3103		while (*param && isspace(*param))
3104		param++;
3105		}
3106
3107		chptr = param;
3108		while (*chptr && !isspace(*chptr))
3109		chptr++;
3110		*chptr = '\0';
3111
3112		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3113		*lbaPtr = 1;
3114		else if (!strcmp(start, "boot") && bootPtr)
3115		*bootPtr = strdup(param);
3116		}
3117
3118	static char * getRootSpecifier(char * str) {	fclose(in);
	char * idx, * rootspec = NULL;
3119
3120	if (*str == '(') {	return 0;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
3121	}	}
3122
3123	static char * getInitrdVal(struct grubConfig * config,	void dumpSysconfigGrub(void)
3124	const char * prefix, struct singleLine *tmplLine,	{
3125	const char * newKernelInitrd,	char *boot = NULL;
3126	char ** extraInitrds, int extraInitrdCount)	int lba;
	{
	char *initrdVal, *end;
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3127
3128	initrdVal = end = malloc(totalSize);	if (isSuseSystem()) {
3129		if (parseSuseGrubConf(&lba, &boot)) {
3130		free(boot);
3131		return;
3132		}
3133		} else {
3134		if (parseSysconfigGrub(&lba, &boot)) {
3135		free(boot);
3136		return;
3137		}
3138		}
3139
3140	end = stpcpy (end, newKernelInitrd + prefixLen);	if (lba)
3141		printf("lba\n");
3142		if (boot) {
3143		printf("boot=%s\n", boot);
3144		free(boot);
3145		}
3146		}
3147
3148	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3149	for (i = 0; i < extraInitrdCount; i++) {	{
3150	const char *extraInitrd;	int i = 0;
3151	int j;	struct singleEntry *entry;
3152		struct singleLine *line;
3153
3154		entry = findEntryByPath(config, kernel, prefix, &i);
3155		if (!entry) {
3156		fprintf(stderr, _("grubby: kernel not found\n"));
3157		return 1;
3158		}
3159
3160	extraInitrd = extraInitrds[i] + prefixLen;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3161	/* Don't add entries that are already there */	be a better way */
3162	if (tmplLine != NULL) {	if (config->cfi == &grubConfigType) {
3163	for (j = 2; j < tmplLine->numElements; j++)	dumpSysconfigGrub();
3164	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	} else {
3165	break;	line = getLineByType(LT_BOOT, config->theLines);
3166		if (line && line->numElements >= 1) {
3167		printf("boot=%s\n", line->elements[1].item);
3168		}
3169
3170	if (j != tmplLine->numElements)	line = getLineByType(LT_LBA, config->theLines);
3171	continue;	if (line)
3172		printf("lba\n");
3173	}	}
3174
3175	*end++ = separatorChar;	displayEntry(entry, prefix, i);
3176	end = stpcpy(end, extraInitrd);
3177	}	i++;
3178		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3179		displayEntry(entry, prefix, i);
3180		i++;
3181		}
3182
3183	return initrdVal;	return 0;
3184	}	}
3185
3186	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3187	const char * prefix,	struct singleLine *tmplLine,
3188	char * newKernelPath, char * newKernelTitle,	struct singleLine *prevLine,
3189	char * newKernelArgs, char * newKernelInitrd,	const char *val, struct configFileInfo *cfi)
3190	char ** extraInitrds, int extraInitrdCount,	{
3191	char * newMBKernel, char * newMBKernelArgs) {	struct singleLine *newLine = lineDup(tmplLine);
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3192
3193	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (isEfi && cfi == &grub2ConfigType) {
3194	while (findEntryByPath(config, buf, NULL, NULL)) {	enum lineType_e old = newLine->type;
3195	sprintf(numBuf, "%d", i++);	newLine->type = preferredLineType(newLine->type, cfi);
3196	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	if (old != newLine->type)
3197		newLine->elements[0].item =
3198		getKeyByType(newLine->type, cfi);
3199	}	}
3200
3201	newKernelTitle = buf + 6;	if (val) {
3202	}	/* override the inherited value with our own.
3203		* This is a little weak because it only applies to elements[1]
3204		*/
3205		if (newLine->numElements > 1)
3206		removeElement(newLine, 1);
3207		insertElement(newLine, val, 1, cfi);
3208
3209		/* but try to keep the rootspec from the template... sigh */
3210		if (tmplLine->
3211		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3212		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3213		LT_INITRD_16)) {
3214		char *rootspec =
3215		getRootSpecifier(tmplLine->elements[1].item);
3216		if (rootspec != NULL) {
3217		free(newLine->elements[1].item);
3218		newLine->elements[1].item =
3219		sdupprintf("%s%s", rootspec, val);
3220		}
3221		}
3222		}
3223
3224	new = malloc(sizeof(*new));	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3225	new->skip = 0;	newLine->elements[0].item : "");
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3226
3227	if (template) {	if (!entry->lines) {
3228	for (masterLine = template->lines;	/* first one on the list */
3229	masterLine && (tmplLine = lineDup(masterLine));	entry->lines = newLine;
3230	lineFree(tmplLine), masterLine = masterLine->next)	} else if (prevLine) {
3231	{	/* add after prevLine */
3232	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	newLine->next = prevLine->next;
3233		prevLine->next = newLine;
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next && masterLine->next->type == LT_KERNEL) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
3234	}	}
3235
3236	} else {	return newLine;
3237	/* don't have a template, so start the entry with the	}
	* appropriate starting line
	*/
	switch (config->cfi->entryStart) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3238
3239	case LT_HYPER:	/* val may be NULL */
3240	newLine = addLine(new, config->cfi, LT_HYPER,	struct singleLine *addLine(struct singleEntry *entry,
3241	config->primaryIndent,	struct configFileInfo *cfi,
3242	newMBKernel + strlen(prefix));	enum lineType_e type, char *defaultIndent,
3243	needs &= ~NEED_MB;	const char *val)
3244	break;	{
3245		struct singleLine *line, *prev;
3246		struct keywordTypes *kw;
3247		struct singleLine tmpl;
3248
3249	case LT_MENUENTRY: {	/* NB: This function shouldn't allocate items on the heap, rather on
3250	char *nkt = malloc(strlen(newKernelTitle)+3);	* the stack since it calls addLineTmpl which will make copies.
3251	strcpy(nkt, "'");	*/
3252	strcat(nkt, newKernelTitle);	if (type == LT_TITLE && cfi->titleBracketed) {
3253	strcat(nkt, "'");	/* we're doing a bracketed title (zipl) */
3254	newLine = addLine(new, config->cfi, LT_MENUENTRY,	tmpl.type = type;
3255	config->primaryIndent, nkt);	tmpl.numElements = 1;
3256	free(nkt);	tmpl.elements = alloca(sizeof(*tmpl.elements));
3257	needs &= ~NEED_TITLE;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3258	needs |= NEED_END;	sprintf(tmpl.elements[0].item, "[%s]", val);
3259	break;	tmpl.elements[0].indent = "";
3260	}	val = NULL;
3261	case LT_TITLE:	} else if (type == LT_MENUENTRY) {
3262	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	char *lineend = "--class gnu-linux --class gnu --class os {";
3263	char * templabel;	if (!val) {
3264	int x = 0, y = 0;	fprintf(stderr,
3265		"Line type LT_MENUENTRY requires a value\n");
3266	templabel = strdup(newKernelTitle);	abort();
3267	while( templabel[x]){	}
3268	if( templabel[x] == ' ' ){	kw = getKeywordByType(type, cfi);
3269	y = x;	if (!kw) {
3270	while( templabel[y] ){	fprintf(stderr,
3271	templabel[y] = templabel[y+1];	"Looking up keyword for unknown type %d\n",
3272	y++;	type);
3273	}	abort();
3274	}	}
3275	x++;	tmpl.indent = "";
3276	}	tmpl.type = type;
3277	newLine = addLine(new, config->cfi, LT_TITLE,	tmpl.numElements = 3;
3278	config->primaryIndent, templabel);	tmpl.elements =
3279	free(templabel);	alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3280	}else{	tmpl.elements[0].item = kw->key;
3281	newLine = addLine(new, config->cfi, LT_TITLE,	tmpl.elements[0].indent = alloca(2);
3282	config->primaryIndent, newKernelTitle);	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3283		tmpl.elements[1].item = (char *)val;
3284		tmpl.elements[1].indent = alloca(2);
3285		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3286		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3287		strcpy(tmpl.elements[2].item, lineend);
3288		tmpl.elements[2].indent = "";
3289		} else {
3290		kw = getKeywordByType(type, cfi);
3291		if (!kw) {
3292		fprintf(stderr,
3293		"Looking up keyword for unknown type %d\n",
3294		type);
3295		abort();
3296		}
3297		tmpl.type = type;
3298		tmpl.numElements = val ? 2 : 1;
3299		tmpl.elements =
3300		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3301		tmpl.elements[0].item = kw->key;
3302		tmpl.elements[0].indent = alloca(2);
3303		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3304		if (val) {
3305		tmpl.elements[1].item = (char *)val;
3306		tmpl.elements[1].indent = "";
3307	}	}
	needs &= ~NEED_TITLE;
	break;
	default:
	abort();
3308	}	}
	}
	/* add the remainder of the lines, i.e. those that either
	* weren't present in the template, or in the case of no template,
	* all the lines following the entryStart.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
	if (needs) {
	printf(_("grubby: needs=%d, aborting\n"), needs);
	abort();
	}
3309
3310	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	/* The last non-empty line gives us the indention to us and the line
3311	newMBKernelArgs, NULL)) return 1;	* to insert after. Note that comments are considered empty lines,
3312		* which may not be ideal? If there are no lines or we are looking at
3313		* the first line, we use defaultIndent (the first line is normally
3314		* indented differently from the rest) */
3315		for (line = entry->lines, prev = NULL; line; line = line->next) {
3316		if (line->numElements)
3317		prev = line;
3318		/* fall back on the last line if prev isn't otherwise set */
3319		if (!line->next && !prev)
3320		prev = line;
3321		}
3322
3323		struct singleLine *menuEntry;
3324		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3325		if (tmpl.type == LT_ENTRY_END) {
3326		if (menuEntry)
3327		tmpl.indent = menuEntry->indent;
3328		else
3329		tmpl.indent = defaultIndent ? : "";
3330		} else if (tmpl.type != LT_MENUENTRY) {
3331		if (menuEntry)
3332		tmpl.indent = "\t";
3333		else if (prev == entry->lines)
3334		tmpl.indent = defaultIndent ? : "";
3335		else
3336		tmpl.indent = prev->indent;
3337		}
3338
3339	return 0;	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3340	}	}
3341
3342	static void traceback(int signum)	void removeLine(struct singleEntry *entry, struct singleLine *line)
3343	{	{
3344	void *array[40];	struct singleLine *prev;
3345	size_t size;	int i;
3346
3347	signal(SIGSEGV, SIG_DFL);	for (i = 0; i < line->numElements; i++) {
3348	memset(array, '\0', sizeof (array));	free(line->elements[i].item);
3349	size = backtrace(array, 40);	free(line->elements[i].indent);
	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",
	(unsigned long)size);
	backtrace_symbols_fd(array, size, STDERR_FILENO);
	exit(1);
	}
	int main(int argc, const char ** argv) {
	poptContext optCon;
	const char * grubConfig = NULL;
	char * outputFile = NULL;
	int arg = 0;
	int flags = 0;
	int badImageOkay = 0;
	int configureGrub2 = 0;
	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
	int configureExtLinux = 0;
	int bootloaderProbe = 0;
	int extraInitrdCount = 0;
	char * updateKernelPath = NULL;
	char * newKernelPath = NULL;
	char * removeKernelPath = NULL;
	char * newKernelArgs = NULL;
	char * newKernelInitrd = NULL;
	char * newKernelTitle = NULL;
	char * newKernelVersion = NULL;
	char * newMBKernel = NULL;
	char * newMBKernelArgs = NULL;
	char * removeMBKernelArgs = NULL;
	char * removeMBKernel = NULL;
	char * bootPrefix = NULL;
	char * defaultKernel = NULL;
	char * removeArgs = NULL;
	char * kernelInfo = NULL;
	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
	const char * chptr = NULL;
	struct configFileInfo * cfi = NULL;
	struct grubConfig * config;
	struct singleEntry * template = NULL;
	int copyDefault = 0, makeDefault = 0;
	int displayDefault = 0;
	int displayDefaultIndex = 0;
	int displayDefaultTitle = 0;
	struct poptOption options[] = {
	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
	_("add an entry for the specified kernel"), _("kernel-path") },
	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
	_("add an entry for the specified multiboot kernel"), NULL },
	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
	#if defined(__i386__) || defined(__x86_64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check if lilo is installed on lilo.conf boot sector") },
	#endif
	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
	_("path to grub config file to update (\"-\" for stdin)"),
	_("path") },
	{ "copy-default", 0, 0, &copyDefault, 0,
	_("use the default boot entry as a template for the new entry "
	"being added; if the default is not a linux image, or if "
	"the kernel referenced by the default image does not exist, "
	"the first linux entry whose kernel does exist is used as the "
	"template"), NULL },
	{ "debug", 0, 0, &debug, 0,
	_("print debugging information for failures") },
	{ "default-kernel", 0, 0, &displayDefault, 0,
	_("display the path of the default kernel") },
	{ "default-index", 0, 0, &displayDefaultIndex, 0,
	_("display the index of the default kernel") },
	{ "default-title", 0, 0, &displayDefaultTitle, 0,
	_("display the title of the default kernel") },
	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
	_("configure elilo bootloader") },
	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
	_("configure extlinux bootloader (from syslinux)") },
	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	optCon = poptGetContext("grubby", argc, argv, options, 0);
	poptReadDefaultConfig(optCon, 1);
	while ((arg = poptGetNextOpt(optCon)) >= 0) {
	switch (arg) {
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
	return 1;
	}
	break;
3350	}	}
3351	}	free(line->elements);
3352		free(line->indent);
3353
3354	if (arg < -1) {	if (line == entry->lines) {
3355	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	entry->lines = line->next;
3356	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	} else {
3357	poptStrerror(arg));	prev = entry->lines;
3358	return 1;	while (prev->next != line)
3359	}	prev = prev->next;
3360		prev->next = line->next;
3361		}
3362
3363	if ((chptr = poptGetArg(optCon))) {	free(line);
3364	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	}
	return 1;
	}
3365
3366	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3367	configureYaboot + configureSilo + configureZipl +	{
3368	configureExtLinux ) > 1) {	struct singleLine newLine = {
3369	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	.indent = tmplLine->indent,
3370	return 1;	.type = tmplLine->type,
3371	} else if (bootloaderProbe && grubConfig) {	.next = tmplLine->next,
3372	fprintf(stderr,	};
3373	_("grubby: cannot specify config file with --bootloader-probe\n"));	int firstQuotedItem = -1;
3374	return 1;	int quoteLen = 0;
3375	} else if (configureGrub2) {	int j;
3376	cfi = &grub2ConfigType;	int element = 0;
3377	} else if (configureLilo) {	char *c;
	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;
	}
3378
3379	if (!cfi) {	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3380	#ifdef __ia64__	strcpy(c, tmplLine->elements[0].item);
3381	cfi = &eliloConfigType;	insertElement(&newLine, c, element++, cfi);
3382	#elif __powerpc__	free(c);
3383	cfi = &yabootConfigType;	c = NULL;
3384	#elif __sparc__
3385	cfi = &siloConfigType;	for (j = 1; j < tmplLine->numElements; j++) {
3386	#elif __s390__	if (firstQuotedItem == -1) {
3387	cfi = &ziplConfigType;	quoteLen += strlen(tmplLine->elements[j].item);
3388	#elif __s390x__
3389	cfi = &ziplConfigtype;	if (isquote(tmplLine->elements[j].item[0])) {
3390	#else	firstQuotedItem = j;
3391	if (grub2FindConfig(&grub2ConfigType))	quoteLen +=
3392	cfi = &grub2ConfigType;	strlen(tmplLine->elements[j].indent);
3393	else	} else {
3394	cfi = &grubConfigType;	c = malloc(quoteLen + 1);
3395	#endif	strcpy(c, tmplLine->elements[j].item);
3396	}	insertElement(&newLine, c, element++, cfi);
3397		free(c);
3398		quoteLen = 0;
3399		}
3400		} else {
3401		int itemlen = strlen(tmplLine->elements[j].item);
3402		quoteLen += itemlen;
3403		quoteLen += strlen(tmplLine->elements[j].indent);
3404
3405		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3406		c = malloc(quoteLen + 1);
3407		c[0] = '\0';
3408		for (int i = firstQuotedItem; i < j + 1; i++) {
3409		strcat(c, tmplLine->elements[i].item);
3410		strcat(c, tmplLine->elements[i].indent);
3411		}
3412		insertElement(&newLine, c, element++, cfi);
3413		free(c);
3414
3415	if (!grubConfig) {	firstQuotedItem = -1;
3416	if (cfi->findConfig)	quoteLen = 0;
3417	grubConfig = cfi->findConfig(cfi);	}
3418	if (!grubConfig)	}
3419	grubConfig = cfi->defaultConfig;	}
3420	}	while (tmplLine->numElements)
3421		removeElement(tmplLine, 0);
3422		if (tmplLine->elements)
3423		free(tmplLine->elements);
3424
3425		tmplLine->numElements = newLine.numElements;
3426		tmplLine->elements = newLine.elements;
3427		}
3428
3429	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	static void insertElement(struct singleLine *line,
3430	newKernelPath || removeKernelPath || makeDefault ||	const char *item, int insertHere,
3431	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	struct configFileInfo *cfi)
3432	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	{
3433	"specified option"));	struct keywordTypes *kw;
3434	return 1;	char indent[2] = "";
	}
3435
3436	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	/* sanity check */
3437	removeKernelPath)) {	if (insertHere > line->numElements) {
3438	fprintf(stderr, _("grubby: --default-kernel and --info may not "	dbgPrintf
3439	"be used when adding or removing kernels\n"));	("insertElement() adjusting insertHere from %d to %d\n",
3440	return 1;	insertHere, line->numElements);
3441	}	insertHere = line->numElements;
3442		}
3443
3444		line->elements = realloc(line->elements, (line->numElements + 1) *
3445		sizeof(*line->elements));
3446		memmove(&line->elements[insertHere + 1],
3447		&line->elements[insertHere],
3448		(line->numElements - insertHere) * sizeof(*line->elements));
3449		line->elements[insertHere].item = strdup(item);
3450
3451		kw = getKeywordByType(line->type, cfi);
3452
3453		if (line->numElements == 0) {
3454		indent[0] = '\0';
3455		} else if (insertHere == 0) {
3456		indent[0] = kw->nextChar;
3457		} else if (kw->separatorChar != '\0') {
3458		indent[0] = kw->separatorChar;
3459		} else {
3460		indent[0] = ' ';
3461		}
3462
3463	if (newKernelPath && !newKernelTitle) {	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3464	fprintf(stderr, _("grubby: kernel title must be specified\n"));	/* move the end-of-line forward */
3465	return 1;	line->elements[insertHere].indent =
3466	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	line->elements[insertHere - 1].indent;
3467	(newKernelInitrd && !updateKernelPath)||	line->elements[insertHere - 1].indent = strdup(indent);
3468	makeDefault || extraInitrdCount > 0)) {	} else {
3469	fprintf(stderr, _("grubby: kernel path expected\n"));	line->elements[insertHere].indent = strdup(indent);
3470	return 1;	}
	}
3471
3472	if (newKernelPath && updateKernelPath) {	line->numElements++;
3473	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
3474	"not be used together"));	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3475	return 1;	line->elements[0].item,
3476	}	line->elements[insertHere].item,
3477		line->elements[insertHere].indent, insertHere);
3478		}
3479
3480		static void removeElement(struct singleLine *line, int removeHere)
3481		{
3482		int i;
3483
3484		/* sanity check */
3485		if (removeHere >= line->numElements)
3486		return;
3487
3488		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3489		removeHere, line->elements[removeHere].item);
3490
3491		free(line->elements[removeHere].item);
3492
3493		if (removeHere > 1) {
3494		/* previous argument gets this argument's post-indentation */
3495		free(line->elements[removeHere - 1].indent);
3496		line->elements[removeHere - 1].indent =
3497		line->elements[removeHere].indent;
3498		} else {
3499		free(line->elements[removeHere].indent);
3500		}
3501
3502		/* now collapse the array, but don't bother to realloc smaller */
3503		for (i = removeHere; i < line->numElements - 1; i++)
3504		line->elements[i] = line->elements[i + 1];
3505
3506		line->numElements--;
3507		}
3508
3509		int argMatch(const char *one, const char *two)
3510		{
3511		char *first, *second;
3512		char *chptr;
3513
3514		first = strcpy(alloca(strlen(one) + 1), one);
3515		second = strcpy(alloca(strlen(two) + 1), two);
3516
3517		chptr = strchr(first, '=');
3518		if (chptr)
3519		*chptr = '\0';
3520
3521		chptr = strchr(second, '=');
3522		if (chptr)
3523		*chptr = '\0';
3524
3525		return strcmp(first, second);
3526		}
3527
3528		int updateActualImage(struct grubConfig *cfg, const char *image,
3529		const char *prefix, const char *addArgs,
3530		const char *removeArgs, int multibootArgs)
3531		{
3532		struct singleEntry *entry;
3533		struct singleLine *line, *rootLine;
3534		int index = 0;
3535		int i, k;
3536		const char **newArgs, **oldArgs;
3537		const char **arg;
3538		int useKernelArgs, useRoot;
3539		int firstElement;
3540		int *usedElements;
3541		int doreplace;
3542
3543		if (!image)
3544		return 0;
3545
3546		if (!addArgs) {
3547		newArgs = malloc(sizeof(*newArgs));
3548		*newArgs = NULL;
3549		} else {
3550		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3551		fprintf(stderr,
3552		_("grubby: error separating arguments '%s'\n"),
3553		addArgs);
3554		return 1;
3555		}
3556		}
3557
3558		if (!removeArgs) {
3559		oldArgs = malloc(sizeof(*oldArgs));
3560		*oldArgs = NULL;
3561		} else {
3562		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3563		fprintf(stderr,
3564		_("grubby: error separating arguments '%s'\n"),
3565		removeArgs);
3566		free(newArgs);
3567		return 1;
3568		}
3569		}
3570
3571		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3572		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3573
3574		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3575		&& !multibootArgs);
3576
3577		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3578
3579		if (multibootArgs && !entry->multiboot)
3580		continue;
3581
3582		/* Determine where to put the args.  If this config supports
3583		* LT_KERNELARGS, use that.  Otherwise use
3584		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3585		*/
3586		if (useKernelArgs) {
3587		line = getLineByType(LT_KERNELARGS, entry->lines);
3588		if (!line) {
3589		/* no LT_KERNELARGS, need to add it */
3590		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3591		cfg->secondaryIndent, NULL);
3592		}
3593		firstElement = 1;
3594
3595		} else if (multibootArgs) {
3596		line = getLineByType(LT_HYPER, entry->lines);
3597		if (!line) {
3598		/* a multiboot entry without LT_HYPER? */
3599		continue;
3600		}
3601		firstElement = 2;
3602
3603		} else {
3604		line =
3605		getLineByType(LT_KERNEL | LT_MBMODULE |
3606		LT_KERNEL_EFI | LT_KERNEL_16,
3607		entry->lines);
3608		if (!line) {
3609		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3610		continue;
3611		}
3612		firstElement = 2;
3613		}
3614
3615		/* handle the elilo case which does:
3616		*   append="hypervisor args -- kernel args"
3617		*/
3618		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3619		/* this is a multiboot entry, make sure there's
3620		* -- on the args line
3621		*/
3622		for (i = firstElement; i < line->numElements; i++) {
3623		if (!strcmp(line->elements[i].item, "--"))
3624		break;
3625		}
3626		if (i == line->numElements) {
3627		/* assume all existing args are kernel args,
3628		* prepend -- to make it official
3629		*/
3630		insertElement(line, "--", firstElement,
3631		cfg->cfi);
3632		i = firstElement;
3633		}
3634		if (!multibootArgs) {
3635		/* kernel args start after the -- */
3636		firstElement = i + 1;
3637		}
3638		} else if (cfg->cfi->mbConcatArgs) {
3639		/* this is a non-multiboot entry, remove hyper args */
3640		for (i = firstElement; i < line->numElements; i++) {
3641		if (!strcmp(line->elements[i].item, "--"))
3642		break;
3643		}
3644		if (i < line->numElements) {
3645		/* remove args up to -- */
3646		while (strcmp
3647		(line->elements[firstElement].item,
3648		"--"))
3649		removeElement(line, firstElement);
3650		/* remove -- */
3651		removeElement(line, firstElement);
3652		}
3653		}
3654
3655		usedElements = calloc(line->numElements, sizeof(*usedElements));
3656
3657		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3658
3659		doreplace = 1;
3660		for (i = firstElement; i < line->numElements; i++) {
3661		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3662		!strcmp(line->elements[i].item, "--")) {
3663		/* reached the end of hyper args, insert here */
3664		doreplace = 0;
3665		break;
3666		}
3667		if (usedElements[i])
3668		continue;
3669		if (!argMatch(line->elements[i].item, *arg)) {
3670		usedElements[i] = 1;
3671		break;
3672		}
3673		}
3674
3675		if (i < line->numElements && doreplace) {
3676		/* direct replacement */
3677		free(line->elements[i].item);
3678		line->elements[i].item = strdup(*arg);
3679
3680		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3681		/* root= replacement */
3682		rootLine = getLineByType(LT_ROOT, entry->lines);
3683		if (rootLine) {
3684		free(rootLine->elements[1].item);
3685		rootLine->elements[1].item =
3686		strdup(*arg + 5);
3687		} else {
3688		rootLine =
3689		addLine(entry, cfg->cfi, LT_ROOT,
3690		cfg->secondaryIndent,
3691		*arg + 5);
3692		}
3693		}
3694
3695		else {
3696		/* insert/append */
3697		insertElement(line, *arg, i, cfg->cfi);
3698		usedElements =
3699		realloc(usedElements,
3700		line->numElements *
3701		sizeof(*usedElements));
3702		memmove(&usedElements[i + 1], &usedElements[i],
3703		line->numElements - i - 1);
3704		usedElements[i] = 1;
3705
3706		/* if we updated a root= here even though
3707		* there is a LT_ROOT available we need to
3708		* remove the LT_ROOT entry (this will happen
3709		* if we switch from a device to a label) */
3710		if (useRoot && !strncmp(*arg, "root=", 5)) {
3711		rootLine =
3712		getLineByType(LT_ROOT,
3713		entry->lines);
3714		if (rootLine)
3715		removeLine(entry, rootLine);
3716		}
3717		}
3718		}
3719
3720		free(usedElements);
3721
3722		for (arg = oldArgs; *arg; arg++) {
3723		for (i = firstElement; i < line->numElements; i++) {
3724		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3725		!strcmp(line->elements[i].item, "--"))
3726		/* reached the end of hyper args, stop here */
3727		break;
3728		if (!argMatch(line->elements[i].item, *arg)) {
3729		removeElement(line, i);
3730		break;
3731		}
3732		}
3733		/* handle removing LT_ROOT line too */
3734		if (useRoot && !strncmp(*arg, "root=", 5)) {
3735		rootLine = getLineByType(LT_ROOT, entry->lines);
3736		if (rootLine)
3737		removeLine(entry, rootLine);
3738		}
3739		}
3740
3741		if (line->numElements == 1) {
3742		/* don't need the line at all (note it has to be a
3743		LT_KERNELARGS for this to happen */
3744		removeLine(entry, line);
3745		}
3746		}
3747
3748		free(newArgs);
3749		free(oldArgs);
3750
3751		return 0;
3752		}
3753
3754		int updateImage(struct grubConfig *cfg, const char *image,
3755		const char *prefix, const char *addArgs,
3756		const char *removeArgs,
3757		const char *addMBArgs, const char *removeMBArgs)
3758		{
3759		int rc = 0;
3760
3761		if (!image)
3762		return rc;
3763
3764		/* update the main args first... */
3765		if (addArgs || removeArgs)
3766		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3767		0);
3768		if (rc)
3769		return rc;
3770
3771		/* and now any multiboot args */
3772		if (addMBArgs || removeMBArgs)
3773		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3774		removeMBArgs, 1);
3775		return rc;
3776		}
3777
3778		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3779		const char *image, const char *prefix, const char *initrd,
3780		const char *title)
3781		{
3782		struct singleEntry *entry;
3783		struct singleLine *line, *kernelLine, *endLine = NULL;
3784		int index = 0;
3785
3786		if (!image)
3787		return 0;
3788
3789		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3790		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3791		if (!kernelLine)
3792		continue;
3793
3794		/* if title is supplied, the entry's title must match it. */
3795		if (title) {
3796		char *linetitle;
3797
3798		line =
3799		getLineByType(LT_TITLE | LT_MENUENTRY,
3800		entry->lines);
3801		if (!line)
3802		continue;
3803
3804		linetitle = extractTitle(cfg, line);
3805		if (!linetitle)
3806		continue;
3807		if (strcmp(title, linetitle)) {
3808		free(linetitle);
3809		continue;
3810		}
3811		free(linetitle);
3812		}
3813
3814		if (prefix) {
3815		int prefixLen = strlen(prefix);
3816		if (!strncmp(initrd, prefix, prefixLen))
3817		initrd += prefixLen;
3818		}
3819		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3820		if (endLine)
3821		removeLine(entry, endLine);
3822		line =
3823		addLine(entry, cfg->cfi,
3824		preferredLineType(LT_MBMODULE, cfg->cfi),
3825		kernelLine->indent, initrd);
3826		if (!line)
3827		return 1;
3828		if (endLine) {
3829		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3830		if (!line)
3831		return 1;
3832		}
3833
3834		break;
3835		}
3836
3837		return 0;
3838		}
3839
3840		int updateInitrd(struct grubConfig *cfg, const char *image,
3841		const char *prefix, const char *initrd, const char *title)
3842		{
3843		struct singleEntry *entry;
3844		struct singleLine *line, *kernelLine, *endLine = NULL;
3845		int index = 0;
3846
3847		if (!image)
3848		return 0;
3849
3850		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3851		kernelLine =
3852		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3853		entry->lines);
3854		if (!kernelLine)
3855		continue;
3856
3857		/* if title is supplied, the entry's title must match it. */
3858		if (title) {
3859		char *linetitle;
3860
3861		line =
3862		getLineByType(LT_TITLE | LT_MENUENTRY,
3863		entry->lines);
3864		if (!line)
3865		continue;
3866
3867		linetitle = extractTitle(cfg, line);
3868		if (!linetitle)
3869		continue;
3870		if (strcmp(title, linetitle)) {
3871		free(linetitle);
3872		continue;
3873		}
3874		free(linetitle);
3875		}
3876
3877		line =
3878		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3879		entry->lines);
3880		if (line)
3881		removeLine(entry, line);
3882		if (prefix) {
3883		int prefixLen = strlen(prefix);
3884		if (!strncmp(initrd, prefix, prefixLen))
3885		initrd += prefixLen;
3886		}
3887		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3888		if (endLine)
3889		removeLine(entry, endLine);
3890		enum lineType_e lt;
3891		switch (kernelLine->type) {
3892		case LT_KERNEL:
3893		lt = LT_INITRD;
3894		break;
3895		case LT_KERNEL_EFI:
3896		lt = LT_INITRD_EFI;
3897		break;
3898		case LT_KERNEL_16:
3899		lt = LT_INITRD_16;
3900		break;
3901		default:
3902		lt = preferredLineType(LT_INITRD, cfg->cfi);
3903		}
3904		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3905		if (!line)
3906		return 1;
3907		if (endLine) {
3908		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3909		if (!line)
3910		return 1;
3911		}
3912
3913		break;
3914		}
3915
3916		return 0;
3917		}
3918
3919		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3920		{
3921		int fd;
3922		unsigned char bootSect[512];
3923		int offset;
3924
3925		fd = open(device, O_RDONLY);
3926		if (fd < 0) {
3927		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3928		device, strerror(errno));
3929		return 1;
3930		}
3931
3932		if (read(fd, bootSect, 512) != 512) {
3933		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3934		device, strerror(errno));
3935		return 1;
3936		}
3937		close(fd);
3938
3939		/* first three bytes should match, a jmp short should be in there */
3940		if (memcmp(boot, bootSect, 3))
3941		return 0;
3942
3943		if (boot[1] == JMP_SHORT_OPCODE) {
3944		offset = boot[2] + 2;
3945		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3946		offset = (boot[3] << 8) + boot[2] + 2;
3947		} else if (boot[0] == JMP_SHORT_OPCODE) {
3948		offset = boot[1] + 2;
3949		/*
3950		* it looks like grub, when copying stage1 into the mbr,
3951		* patches stage1 right after the JMP location, replacing
3952		* other instructions such as JMPs for NOOPs. So, relax the
3953		* check a little bit by skipping those different bytes.
3954		*/
3955		if ((bootSect[offset + 1] == NOOP_OPCODE)
3956		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3957		offset = offset + 3;
3958		}
3959		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3960		offset = (boot[2] << 8) + boot[1] + 2;
3961		} else {
3962		return 0;
3963		}
3964
3965		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3966		return 0;
3967
3968		return 2;
3969		}
3970
3971		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3972		{
3973		int fd;
3974		char buf[65536];
3975		char *end;
3976		char *chptr;
3977		char *chptr2;
3978		int rc;
3979
3980		/* it's on raid; we need to parse /proc/mdstat and check all of the
3981		*raw* devices listed in there */
3982
3983		if (!strncmp(mdDev, "/dev/", 5))
3984		mdDev += 5;
3985
3986		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3987		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3988		strerror(errno));
3989		return 2;
3990		}
3991
3992		rc = read(fd, buf, sizeof(buf) - 1);
3993		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3994		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3995		strerror(errno));
3996		close(fd);
3997		return 2;
3998		}
3999		close(fd);
4000		buf[rc] = '\0';
4001
4002		chptr = buf;
4003		while (*chptr) {
4004		end = strchr(chptr, '\n');
4005		if (!end)
4006		break;
4007		*end = '\0';
4008
4009		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4010		chptr[strlen(mdDev)] == ' ') {
4011
4012		/* found the device */
4013		while (*chptr && *chptr != ':')
4014		chptr++;
4015		chptr++;
4016		while (*chptr && isspace(*chptr))
4017		chptr++;
4018
4019		/* skip the "active" bit */
4020		while (*chptr && !isspace(*chptr))
4021		chptr++;
4022		while (*chptr && isspace(*chptr))
4023		chptr++;
4024
4025		/* skip the raid level */
4026		while (*chptr && !isspace(*chptr))
4027		chptr++;
4028		while (*chptr && isspace(*chptr))
4029		chptr++;
4030
4031		/* everything else is partition stuff */
4032		while (*chptr) {
4033		chptr2 = chptr;
4034		while (*chptr2 && *chptr2 != '[')
4035		chptr2++;
4036		if (!*chptr2)
4037		break;
4038
4039		/* yank off the numbers at the end */
4040		chptr2--;
4041		while (isdigit(*chptr2) && chptr2 > chptr)
4042		chptr2--;
4043		chptr2++;
4044		*chptr2 = '\0';
4045
4046		/* Better, now we need the /dev/ back. We're
4047		* done with everything before this point, so
4048		* we can just put the /dev/ part there.
4049		* There will always be room. */
4050		memcpy(chptr - 5, "/dev/", 5);
4051		rc = checkDeviceBootloader(chptr - 5, boot);
4052		if (rc != 2) {
4053		return rc;
4054		}
4055
4056		chptr = chptr2 + 1;
4057		/* skip the [11] bit */
4058		while (*chptr && !isspace(*chptr))
4059		chptr++;
4060		/* and move to the next one */
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063		}
4064
4065		/*  we're good to go */
4066		return 2;
4067		}
4068
4069		chptr = end + 1;
4070		}
4071
4072		fprintf(stderr,
4073		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4074		mdDev);
4075		return 0;
4076		}
4077
4078		int checkForLilo(struct grubConfig *config)
4079		{
4080		int fd;
4081		unsigned char boot[512];
4082		struct singleLine *line;
4083
4084		for (line = config->theLines; line; line = line->next)
4085		if (line->type == LT_BOOT)
4086		break;
4087
4088		if (!line) {
4089		fprintf(stderr,
4090		_
4091		("grubby: no boot line found in lilo configuration\n"));
4092		return 1;
4093		}
4094
4095		if (line->numElements != 2)
4096		return 1;
4097
4098		fd = open("/boot/boot.b", O_RDONLY);
4099		if (fd < 0) {
4100		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4101		"/boot/boot.b", strerror(errno));
4102		return 1;
4103		}
4104
4105		if (read(fd, boot, 512) != 512) {
4106		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4107		"/boot/boot.b", strerror(errno));
4108		return 1;
4109		}
4110		close(fd);
4111
4112		if (!strncmp("/dev/md", line->elements[1].item, 7))
4113		return checkLiloOnRaid(line->elements[1].item, boot);
4114
4115		return checkDeviceBootloader(line->elements[1].item, boot);
4116		}
4117
4118		int checkForGrub2(struct grubConfig *config)
4119		{
4120		if (!access("/etc/grub.d/", R_OK))
4121		return 2;
4122
	if (makeDefault && defaultKernel) {
	fprintf(stderr, _("grubby: --make-default and --default-kernel "
	"may not be used together\n"));
	return 1;
	} else if (defaultKernel && removeKernelPath &&
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
4123	return 1;	return 1;
4124	} else if (defaultKernel && newKernelPath &&	}
4125	!strcmp(defaultKernel, newKernelPath)) {
4126	makeDefault = 1;	int checkForGrub(struct grubConfig *config)
4127	defaultKernel = NULL;	{
4128	}	int fd;
4129		unsigned char bootSect[512];
4130		char *boot;
4131		int onSuse = isSuseSystem();
4132
4133		if (onSuse) {
4134		if (parseSuseGrubConf(NULL, &boot))
4135		return 0;
4136		} else {
4137		if (parseSysconfigGrub(NULL, &boot))
4138		return 0;
4139		}
4140
4141		/* assume grub is not installed -- not an error condition */
4142		if (!boot)
4143		return 0;
4144
4145		fd = open("/boot/grub/stage1", O_RDONLY);
4146		if (fd < 0)
4147		/* this doesn't exist if grub hasn't been installed */
4148		return 0;
4149
4150		if (read(fd, bootSect, 512) != 512) {
4151		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4152		"/boot/grub/stage1", strerror(errno));
4153		close(fd);
4154		return 1;
4155		}
4156		close(fd);
4157
4158		/* The more elaborate checks do not work on SuSE. The checks done
4159		* seem to be reasonble (at least for now), so just return success
4160		*/
4161		if (onSuse)
4162		return 2;
4163
4164		return checkDeviceBootloader(boot, bootSect);
4165		}
4166
4167		int checkForExtLinux(struct grubConfig *config)
4168		{
4169		int fd;
4170		unsigned char bootSect[512];
4171		char *boot;
4172		char executable[] = "/boot/extlinux/extlinux";
4173
4174		printf("entered: checkForExtLinux()\n");
4175
4176		if (parseSysconfigGrub(NULL, &boot))
4177		return 0;
4178
4179		/* assume grub is not installed -- not an error condition */
4180		if (!boot)
4181		return 0;
4182
4183		fd = open(executable, O_RDONLY);
4184		if (fd < 0)
4185		/* this doesn't exist if grub hasn't been installed */
4186		return 0;
4187
4188		if (read(fd, bootSect, 512) != 512) {
4189		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4190		executable, strerror(errno));
4191		return 1;
4192		}
4193		close(fd);
4194
4195		return checkDeviceBootloader(boot, bootSect);
4196		}
4197
4198		int checkForYaboot(struct grubConfig *config)
4199		{
4200		/*
4201		* This is a simplistic check that we consider good enough for own puporses
4202		*
4203		* If we were to properly check if yaboot is *installed* we'd need to:
4204		* 1) get the system boot device (LT_BOOT)
4205		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4206		*    the content on the boot device
4207		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4208		* 4) check again if binary and boot device contents match
4209		*/
4210		if (!access("/etc/yaboot.conf", R_OK))
4211		return 2;
4212
	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
	fprintf(stderr, _("grubby: output file must be specified if stdin "
	"is used\n"));
4213	return 1;	return 1;
4214	}	}
4215
4216		int checkForElilo(struct grubConfig *config)
4217		{
4218		if (!access("/etc/elilo.conf", R_OK))
4219		return 2;
4220
	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel
	&& !kernelInfo && !bootloaderProbe && !updateKernelPath
	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {
	fprintf(stderr, _("grubby: no action specified\n"));
4221	return 1;	return 1;
4222	}	}
4223
4224	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	static char *getRootSpecifier(char *str)
4225		{
4226		char *idx, *rootspec = NULL;
4227
4228	if (cfi->needsBootPrefix) {	if (*str == '(') {
4229	if (!bootPrefix) {	idx = rootspec = strdup(str);
4230	bootPrefix = findBootPrefix();	while (*idx && (*idx != ')') && (!isspace(*idx)))
4231	if (!bootPrefix) return 1;	idx++;
4232	} else {	*(++idx) = '\0';
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
4233	}	}
4234	} else {	return rootspec;
4235	bootPrefix = "";	}
	}
4236
4237	if (!cfi->mbAllowExtraInitRds &&	static char *getInitrdVal(struct grubConfig *config,
4238	extraInitrdCount > 0) {	const char *prefix, struct singleLine *tmplLine,
4239	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	const char *newKernelInitrd,
4240	return 1;	const char **extraInitrds, int extraInitrdCount)
4241	}	{
4242		char *initrdVal, *end;
4243		int i;
4244		size_t totalSize;
4245		size_t prefixLen;
4246		char separatorChar;
4247
4248		prefixLen = strlen(prefix);
4249		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4250
4251		for (i = 0; i < extraInitrdCount; i++) {
4252		totalSize += sizeof(separatorChar);
4253		totalSize += strlen(extraInitrds[i]) - prefixLen;
4254		}
4255
4256		initrdVal = end = malloc(totalSize);
4257
4258		end = stpcpy(end, newKernelInitrd + prefixLen);
4259
4260		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4261		for (i = 0; i < extraInitrdCount; i++) {
4262		const char *extraInitrd;
4263		int j;
4264
4265		extraInitrd = extraInitrds[i] + prefixLen;
4266		/* Don't add entries that are already there */
4267		if (tmplLine != NULL) {
4268		for (j = 2; j < tmplLine->numElements; j++)
4269		if (strcmp
4270		(extraInitrd,
4271		tmplLine->elements[j].item) == 0)
4272		break;
4273
4274		if (j != tmplLine->numElements)
4275		continue;
4276		}
4277
4278	if (bootloaderProbe) {	*end++ = separatorChar;
4279	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	end = stpcpy(end, extraInitrd);
4280	struct grubConfig * lconfig, * gconfig;	}
	const char *grub2config = grub2FindConfig(&grub2ConfigType);
	if (grub2config) {
	gconfig = readConfig(grub2config, &grub2ConfigType);
	if (!gconfig)
	gr2c = 1;
	else
	gr2c = checkForGrub2(gconfig);
	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	erc = 1;
	else
	erc = checkForExtLinux(lconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1) return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
4281
4282	return 0;	return initrdVal;
4283	}	}
4284
4285		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4286		const char *prefix,
4287		const char *newKernelPath, const char *newKernelTitle,
4288		const char *newKernelArgs, const char *newKernelInitrd,
4289		const char **extraInitrds, int extraInitrdCount,
4290		const char *newMBKernel, const char *newMBKernelArgs,
4291		const char *newDevTreePath, int newIndex)
4292		{
4293		struct singleEntry *new, *entry, *prev = NULL;
4294		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4295		int needs;
4296		char *indexs;
4297		char *chptr;
4298		int rc;
4299
4300	config = readConfig(grubConfig, cfi);	if (!newKernelPath)
4301	if (!config) return 1;	return 0;
4302
4303	if (displayDefault) {	rc = asprintf(&indexs, "%d", newIndex);
4304	struct singleLine * line;	if (rc < 0)
4305	struct singleEntry * entry;	return 1;
	char * rootspec;
	if (config->defaultImage == -1) return 0;
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
4306
4307	return 0;	/* if the newKernelTitle is too long silently munge it into something
4308		* we can live with. truncating is first check, then we'll just mess with
4309		* it until it looks better */
4310		if (config->cfi->maxTitleLength &&
4311		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4312		char *buf = alloca(config->cfi->maxTitleLength + 7);
4313		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4314		int i = 1;
4315
4316		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4317		newKernelTitle);
4318		while (findEntryByPath(config, buf, NULL, NULL)) {
4319		sprintf(numBuf, "%d", i++);
4320		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4321		}
4322
4323		newKernelTitle = buf + 6;
4324		}
4325
4326		new = malloc(sizeof(*new));
4327		new->skip = 0;
4328		new->multiboot = 0;
4329		new->lines = NULL;
4330		entry = config->entries;
4331		for (unsigned int i = 0; i < newIndex; i++) {
4332		if (!entry)
4333		break;
4334		prev = entry;
4335		entry = entry->next;
4336		}
4337		new->next = entry;
4338
4339		if (prev)
4340		prev->next = new;
4341		else
4342		config->entries = new;
4343
4344		/* copy/update from the template */
4345		needs = NEED_KERNEL | NEED_TITLE;
4346		if (newKernelInitrd)
4347		needs |= NEED_INITRD;
4348		if (newMBKernel) {
4349		needs |= NEED_MB;
4350		new->multiboot = 1;
4351		}
4352		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4353		needs |= NEED_DEVTREE;
4354
4355		if (template) {
4356		for (masterLine = template->lines;
4357		masterLine && (tmplLine = lineDup(masterLine));
4358		lineFree(tmplLine), masterLine = masterLine->next) {
4359		dbgPrintf("addNewKernel processing %d\n",
4360		tmplLine->type);
4361
4362		/* skip comments */
4363		chptr = tmplLine->indent;
4364		while (*chptr && isspace(*chptr))
4365		chptr++;
4366		if (*chptr == '#')
4367		continue;
4368
4369		if (iskernel(tmplLine->type)
4370		&& tmplLine->numElements >= 2) {
4371		if (!template->multiboot && (needs & NEED_MB)) {
4372		/* it's not a multiboot template and
4373		* this is the kernel line.  Try to
4374		* be intelligent about inserting the
4375		* hypervisor at the same time.
4376		*/
4377		if (config->cfi->mbHyperFirst) {
4378		/* insert the hypervisor first */
4379		newLine =
4380		addLine(new, config->cfi,
4381		LT_HYPER,
4382		tmplLine->indent,
4383		newMBKernel +
4384		strlen(prefix));
4385		/* set up for adding the
4386		* kernel line */
4387		free(tmplLine->indent);
4388		tmplLine->indent =
4389		strdup(config->
4390		secondaryIndent);
4391		needs &= ~NEED_MB;
4392		}
4393		if (needs & NEED_KERNEL) {
4394		/* use addLineTmpl to
4395		* preserve line elements,
4396		* otherwise we could just
4397		* call addLine.
4398		* Unfortunately this means
4399		* making some changes to the
4400		* template such as the
4401		* indent change above and
4402		* the type change below.
4403		*/
4404		struct keywordTypes *mbm_kw =
4405		getKeywordByType
4406		(LT_MBMODULE, config->cfi);
4407		if (mbm_kw) {
4408		tmplLine->type =
4409		LT_MBMODULE;
4410		free(tmplLine->
4411		elements[0].item);
4412		tmplLine->elements[0].
4413		item =
4414		strdup(mbm_kw->key);
4415		}
4416		newLine =
4417		addLineTmpl(new, tmplLine,
4418		newLine,
4419		newKernelPath +
4420		strlen(prefix),
4421		config->cfi);
4422		needs &= ~NEED_KERNEL;
4423		}
4424		if (needs & NEED_MB) { /* !mbHyperFirst */
4425		newLine =
4426		addLine(new, config->cfi,
4427		LT_HYPER,
4428		config->
4429		secondaryIndent,
4430		newMBKernel +
4431		strlen(prefix));
4432		needs &= ~NEED_MB;
4433		}
4434		} else if (needs & NEED_KERNEL) {
4435		newLine =
4436		addLineTmpl(new, tmplLine, newLine,
4437		newKernelPath +
4438		strlen(prefix),
4439		config->cfi);
4440		needs &= ~NEED_KERNEL;
4441		}
4442
4443		} else if (tmplLine->type == LT_HYPER &&
4444		tmplLine->numElements >= 2) {
4445		if (needs & NEED_MB) {
4446		newLine =
4447		addLineTmpl(new, tmplLine, newLine,
4448		newMBKernel +
4449		strlen(prefix),
4450		config->cfi);
4451		needs &= ~NEED_MB;
4452		}
4453
4454		} else if (tmplLine->type == LT_MBMODULE &&
4455		tmplLine->numElements >= 2) {
4456		if (new->multiboot) {
4457		if (needs & NEED_KERNEL) {
4458		newLine =
4459		addLineTmpl(new, tmplLine,
4460		newLine,
4461		newKernelPath +
4462		strlen(prefix),
4463		config->cfi);
4464		needs &= ~NEED_KERNEL;
4465		} else if (config->cfi->mbInitRdIsModule
4466		&& (needs & NEED_INITRD)) {
4467		char *initrdVal;
4468		initrdVal =
4469		getInitrdVal(config, prefix,
4470		tmplLine,
4471		newKernelInitrd,
4472		extraInitrds,
4473		extraInitrdCount);
4474		newLine =
4475		addLineTmpl(new, tmplLine,
4476		newLine,
4477		initrdVal,
4478		config->cfi);
4479		free(initrdVal);
4480		needs &= ~NEED_INITRD;
4481		}
4482		} else if (needs & NEED_KERNEL) {
4483		/* template is multi but new is not,
4484		* insert the kernel in the first
4485		* module slot
4486		*/
4487		tmplLine->type =
4488		preferredLineType(LT_KERNEL,
4489		config->cfi);
4490		free(tmplLine->elements[0].item);
4491		tmplLine->elements[0].item =
4492		strdup(getKeywordByType
4493		(tmplLine->type,
4494		config->cfi)->key);
4495		newLine =
4496		addLineTmpl(new, tmplLine, newLine,
4497		newKernelPath +
4498		strlen(prefix),
4499		config->cfi);
4500		needs &= ~NEED_KERNEL;
4501		} else if (needs & NEED_INITRD) {
4502		char *initrdVal;
4503		/* template is multi but new is not,
4504		* insert the initrd in the second
4505		* module slot
4506		*/
4507		tmplLine->type =
4508		preferredLineType(LT_INITRD,
4509		config->cfi);
4510		free(tmplLine->elements[0].item);
4511		tmplLine->elements[0].item =
4512		strdup(getKeywordByType
4513		(tmplLine->type,
4514		config->cfi)->key);
4515		initrdVal =
4516		getInitrdVal(config, prefix,
4517		tmplLine,
4518		newKernelInitrd,
4519		extraInitrds,
4520		extraInitrdCount);
4521		newLine =
4522		addLineTmpl(new, tmplLine, newLine,
4523		initrdVal, config->cfi);
4524		free(initrdVal);
4525		needs &= ~NEED_INITRD;
4526		}
4527
4528		} else if (isinitrd(tmplLine->type)
4529		&& tmplLine->numElements >= 2) {
4530		if (needs & NEED_INITRD && new->multiboot
4531		&& !template->multiboot
4532		&& config->cfi->mbInitRdIsModule) {
4533		/* make sure we don't insert the
4534		* module initrd before the module
4535		* kernel... if we don't do it here,
4536		* it will be inserted following the
4537		* template.
4538		*/
4539		if (!needs & NEED_KERNEL) {
4540		char *initrdVal;
4541
4542		initrdVal =
4543		getInitrdVal(config, prefix,
4544		tmplLine,
4545		newKernelInitrd,
4546		extraInitrds,
4547		extraInitrdCount);
4548		newLine =
4549		addLine(new, config->cfi,
4550		LT_MBMODULE,
4551		config->
4552		secondaryIndent,
4553		initrdVal);
4554		free(initrdVal);
4555		needs &= ~NEED_INITRD;
4556		}
4557		} else if (needs & NEED_INITRD) {
4558		char *initrdVal;
4559		initrdVal =
4560		getInitrdVal(config, prefix,
4561		tmplLine,
4562		newKernelInitrd,
4563		extraInitrds,
4564		extraInitrdCount);
4565		newLine =
4566		addLineTmpl(new, tmplLine, newLine,
4567		initrdVal, config->cfi);
4568		free(initrdVal);
4569		needs &= ~NEED_INITRD;
4570		}
4571
4572		} else if (tmplLine->type == LT_MENUENTRY &&
4573		(needs & NEED_TITLE)) {
4574		requote(tmplLine, config->cfi);
4575		char *nkt = malloc(strlen(newKernelTitle) + 3);
4576		strcpy(nkt, "'");
4577		strcat(nkt, newKernelTitle);
4578		strcat(nkt, "'");
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, nkt,
4581		config->cfi);
4582		free(nkt);
4583		needs &= ~NEED_TITLE;
4584		} else if (tmplLine->type == LT_TITLE &&
4585		(needs & NEED_TITLE)) {
4586		if (tmplLine->numElements >= 2) {
4587		newLine =
4588		addLineTmpl(new, tmplLine, newLine,
4589		newKernelTitle,
4590		config->cfi);
4591		needs &= ~NEED_TITLE;
4592		} else if (tmplLine->numElements == 1 &&
4593		config->cfi->titleBracketed) {
4594		/* addLineTmpl doesn't handle
4595		* titleBracketed */
4596		newLine =
4597		addLine(new, config->cfi, LT_TITLE,
4598		tmplLine->indent,
4599		newKernelTitle);
4600		needs &= ~NEED_TITLE;
4601		}
4602		} else if (tmplLine->type == LT_ECHO) {
4603		requote(tmplLine, config->cfi);
4604		static const char *prefix = "'Loading ";
4605		if (tmplLine->numElements > 1 &&
4606		strstr(tmplLine->elements[1].item, prefix)
4607		&& masterLine->next
4608		&& iskernel(masterLine->next->type)) {
4609		char *newTitle =
4610		malloc(strlen(prefix) +
4611		strlen(newKernelTitle) + 2);
4612
4613		strcpy(newTitle, prefix);
4614		strcat(newTitle, newKernelTitle);
4615		strcat(newTitle, "'");
4616		newLine =
4617		addLine(new, config->cfi, LT_ECHO,
4618		tmplLine->indent, newTitle);
4619		free(newTitle);
4620		} else {
4621		/* pass through other lines from the
4622		* template */
4623		newLine =
4624		addLineTmpl(new, tmplLine, newLine,
4625		NULL, config->cfi);
4626		}
4627		} else if (tmplLine->type == LT_DEVTREE &&
4628		tmplLine->numElements == 2
4629		&& newDevTreePath) {
4630		newLine =
4631		addLineTmpl(new, tmplLine, newLine,
4632		newDevTreePath + strlen(prefix),
4633		config->cfi);
4634		needs &= ~NEED_DEVTREE;
4635		} else if (tmplLine->type == LT_ENTRY_END
4636		&& needs & NEED_DEVTREE) {
4637		const char *ndtp = newDevTreePath;
4638		if (!strncmp
4639		(newDevTreePath, prefix, strlen(prefix)))
4640		ndtp += strlen(prefix);
4641		newLine = addLine(new, config->cfi, LT_DEVTREE,
4642		config->secondaryIndent,
4643		ndtp);
4644		needs &= ~NEED_DEVTREE;
4645		newLine =
4646		addLineTmpl(new, tmplLine, newLine, NULL,
4647		config->cfi);
4648		} else {
4649		/* pass through other lines from the template */
4650		newLine =
4651		addLineTmpl(new, tmplLine, newLine, NULL,
4652		config->cfi);
4653		}
4654		}
4655
4656		} else {
4657		/* don't have a template, so start the entry with the
4658		* appropriate starting line
4659		*/
4660		switch (config->cfi->entryStart) {
4661		case LT_KERNEL:
4662		case LT_KERNEL_EFI:
4663		case LT_KERNEL_16:
4664		if (new->multiboot && config->cfi->mbHyperFirst) {
4665		/* fall through to LT_HYPER */
4666		} else {
4667		newLine = addLine(new, config->cfi,
4668		preferredLineType(LT_KERNEL,
4669		config->
4670		cfi),
4671		config->primaryIndent,
4672		newKernelPath +
4673		strlen(prefix));
4674		needs &= ~NEED_KERNEL;
4675		break;
4676		}
4677
4678		case LT_HYPER:
4679		newLine = addLine(new, config->cfi, LT_HYPER,
4680		config->primaryIndent,
4681		newMBKernel + strlen(prefix));
4682		needs &= ~NEED_MB;
4683		break;
4684
4685		case LT_MENUENTRY:{
4686		char *nkt = malloc(strlen(newKernelTitle) + 3);
4687		strcpy(nkt, "'");
4688		strcat(nkt, newKernelTitle);
4689		strcat(nkt, "'");
4690		newLine =
4691		addLine(new, config->cfi, LT_MENUENTRY,
4692		config->primaryIndent, nkt);
4693		free(nkt);
4694		needs &= ~NEED_TITLE;
4695		needs |= NEED_END;
4696		break;
4697		}
4698		case LT_TITLE:
4699		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4700		char *templabel;
4701		int x = 0, y = 0;
4702
4703		templabel = strdup(newKernelTitle);
4704		while (templabel[x]) {
4705		if (templabel[x] == ' ') {
4706		y = x;
4707		while (templabel[y]) {
4708		templabel[y] =
4709		templabel[y + 1];
4710		y++;
4711		}
4712		}
4713		x++;
4714		}
4715		newLine = addLine(new, config->cfi, LT_TITLE,
4716		config->primaryIndent,
4717		templabel);
4718		free(templabel);
4719		} else {
4720		newLine = addLine(new, config->cfi, LT_TITLE,
4721		config->primaryIndent,
4722		newKernelTitle);
4723		}
4724		needs &= ~NEED_TITLE;
4725		break;
4726
4727		default:
4728		abort();
4729		}
4730		}
4731
4732		struct singleLine *endLine = NULL;
4733		endLine = getLineByType(LT_ENTRY_END, new->lines);
4734		if (endLine) {
4735		removeLine(new, endLine);
4736		needs |= NEED_END;
4737		}
4738
4739		/* add the remainder of the lines, i.e. those that either
4740		* weren't present in the template, or in the case of no template,
4741		* all the lines following the entryStart.
4742		*/
4743		if (needs & NEED_TITLE) {
4744		newLine = addLine(new, config->cfi, LT_TITLE,
4745		config->secondaryIndent, newKernelTitle);
4746		needs &= ~NEED_TITLE;
4747		}
4748		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4749		newLine = addLine(new, config->cfi, LT_HYPER,
4750		config->secondaryIndent,
4751		newMBKernel + strlen(prefix));
4752		needs &= ~NEED_MB;
4753		}
4754		if (needs & NEED_KERNEL) {
4755		newLine = addLine(new, config->cfi,
4756		(new->multiboot
4757		&& getKeywordByType(LT_MBMODULE,
4758		config->cfi))
4759		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4760		config->
4761		cfi),
4762		config->secondaryIndent,
4763		newKernelPath + strlen(prefix));
4764		needs &= ~NEED_KERNEL;
4765		}
4766		if (needs & NEED_MB) {
4767		newLine = addLine(new, config->cfi, LT_HYPER,
4768		config->secondaryIndent,
4769		newMBKernel + strlen(prefix));
4770		needs &= ~NEED_MB;
4771		}
4772		if (needs & NEED_INITRD) {
4773		char *initrdVal;
4774		initrdVal =
4775		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4776		extraInitrds, extraInitrdCount);
4777		newLine =
4778		addLine(new, config->cfi,
4779		(new->multiboot
4780		&& getKeywordByType(LT_MBMODULE, config->cfi))
4781		? LT_MBMODULE : preferredLineType(LT_INITRD,
4782		config->cfi),
4783		config->secondaryIndent, initrdVal);
4784		free(initrdVal);
4785		needs &= ~NEED_INITRD;
4786		}
4787		if (needs & NEED_DEVTREE) {
4788		newLine = addLine(new, config->cfi, LT_DEVTREE,
4789		config->secondaryIndent, newDevTreePath);
4790		needs &= ~NEED_DEVTREE;
4791		}
4792
4793		/* NEEDS_END must be last on bootloaders that need it... */
4794		if (needs & NEED_END) {
4795		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4796		config->secondaryIndent, NULL);
4797		needs &= ~NEED_END;
4798		}
4799
4800	} else if (displayDefaultTitle) {	if (needs) {
4801	struct singleLine * line;	printf(_("grubby: needs=%d, aborting\n"), needs);
4802	struct singleEntry * entry;	abort();
4803		}
4804	if (config->defaultImage == -1) return 0;
4805	entry = findEntryByIndex(config, config->defaultImage);	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4806	if (!entry) return 0;	newMBKernelArgs, NULL)) {
4807		config->isModified = 1;
4808	if (!configureGrub2) {	return 1;
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
	} else {
	char * title;
	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
4809	}	}
4810
4811	return 0;	return 0;
4812		}
4813
4814	} else if (displayDefaultIndex) {	int main(int argc, const char **argv)
4815	if (config->defaultImage == -1) return 0;	{
4816	printf("%i\n", config->defaultImage);	poptContext optCon;
4817		const char *grubConfig = NULL;
4818	} else if (kernelInfo)	char *outputFile = NULL;
4819	return displayInfo(config, kernelInfo, bootPrefix);	int arg = 0;
4820		int flags = 0;
4821	if (copyDefault) {	int badImageOkay = 0;
4822	template = findTemplate(config, bootPrefix, NULL, 0, flags);	int configureGrub2 = 0;
4823	if (!template) return 1;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4824	}	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4825		int configureExtLinux = 0;
4826		int bootloaderProbe = 0;
4827		int extraInitrdCount = 0;
4828		char *updateKernelPath = NULL;
4829		char *newKernelPath = NULL;
4830		char *removeKernelPath = NULL;
4831		char *newKernelArgs = NULL;
4832		char *newKernelInitrd = NULL;
4833		char *newKernelTitle = NULL;
4834		char *newDevTreePath = NULL;
4835		char *newMBKernel = NULL;
4836		char *newMBKernelArgs = NULL;
4837		int newIndex = 0;
4838		char *removeMBKernelArgs = NULL;
4839		char *removeMBKernel = NULL;
4840		char *bootPrefix = NULL;
4841		char *defaultKernel = NULL;
4842		char *removeArgs = NULL;
4843		char *kernelInfo = NULL;
4844		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4845		char *envPath = NULL;
4846		const char *chptr = NULL;
4847		struct configFileInfo *cfi = NULL;
4848		struct grubConfig *config;
4849		struct singleEntry *template = NULL;
4850		int copyDefault = 0, makeDefault = 0;
4851		int displayDefault = 0;
4852		int displayDefaultIndex = 0;
4853		int displayDefaultTitle = 0;
4854		int defaultIndex = -1;
4855		struct poptOption options[] = {
4856		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4857		_("add an entry for the specified kernel"), _("kernel-path")},
4858		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4859		_("add an entry for the specified multiboot kernel"), NULL},
4860		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4861		_("default arguments for the new kernel or new arguments for "
4862		"kernel being updated"), _("args")},
4863		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4864		_("default arguments for the new multiboot kernel or "
4865		"new arguments for multiboot kernel being updated"), NULL},
4866		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4867		_
4868		("don't sanity check images in boot entries (for testing only)"),
4869		NULL},
4870		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4871		_
4872		("filesystem which contains /boot directory (for testing only)"),
4873		_("bootfs")},
4874		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4875		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4876		_("check which bootloader is installed on boot sector")},
4877		#endif
4878		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4879		_("path to grub config file to update (\"-\" for stdin)"),
4880		_("path")},
4881		{"copy-default", 0, 0, &copyDefault, 0,
4882		_("use the default boot entry as a template for the new entry "
4883		"being added; if the default is not a linux image, or if "
4884		"the kernel referenced by the default image does not exist, "
4885		"the first linux entry whose kernel does exist is used as the "
4886		"template"), NULL},
4887		{"debug", 0, 0, &debug, 0,
4888		_("print debugging information for failures")},
4889		{"default-kernel", 0, 0, &displayDefault, 0,
4890		_("display the path of the default kernel")},
4891		{"default-index", 0, 0, &displayDefaultIndex, 0,
4892		_("display the index of the default kernel")},
4893		{"default-title", 0, 0, &displayDefaultTitle, 0,
4894		_("display the title of the default kernel")},
4895		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4896		_("device tree file for new stanza"), _("dtb-path")},
4897		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898		_("device tree directory for new stanza"), _("dtb-path")},
4899		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4900		_("configure elilo bootloader")},
4901		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4902		_("force grub2 stanzas to use efi")},
4903		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4904		_("path for environment data"),
4905		_("path")},
4906		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4907		_("configure extlinux bootloader (from syslinux)")},
4908		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4909		_("configure grub bootloader")},
4910		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4911		_("configure grub2 bootloader")},
4912		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4913		_("display boot information for specified kernel"),
4914		_("kernel-path")},
4915		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4916		_("initrd image for the new kernel"), _("initrd-path")},
4917		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4918		_
4919		("auxiliary initrd image for things other than the new kernel"),
4920		_("initrd-path")},
4921		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4922		_("configure lilo bootloader")},
4923		{"make-default", 0, 0, &makeDefault, 0,
4924		_("make the newly added entry the default boot entry"), NULL},
4925		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4926		_("path to output updated config file (\"-\" for stdout)"),
4927		_("path")},
4928		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4929		_("remove kernel arguments"), NULL},
4930		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4931		_("remove multiboot kernel arguments"), NULL},
4932		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4933		_("remove all entries for the specified kernel"),
4934		_("kernel-path")},
4935		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4936		_("remove all entries for the specified multiboot kernel"),
4937		NULL},
4938		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4939		_("make the first entry referencing the specified kernel "
4940		"the default"), _("kernel-path")},
4941		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4942		_("make the given entry index the default entry"),
4943		_("entry-index")},
4944		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4945		_("use the given index when creating a new entry"),
4946		_("entry-index")},
4947		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4948		_("configure silo bootloader")},
4949		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4950		_("title to use for the new kernel entry"), _("entry-title")},
4951		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4952		_("updated information for the specified kernel"),
4953		_("kernel-path")},
4954		{"version", 'v', 0, NULL, 'v',
4955		_("print the version of this program and exit"), NULL},
4956		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4957		_("configure yaboot bootloader")},
4958		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4959		_("configure zipl bootloader")},
4960		POPT_AUTOHELP {0, 0, 0, 0, 0}
4961		};
4962
4963		useextlinuxmenu = 0;
4964
4965		int i = 0;
4966		for (int j = 1; j < argc; j++)
4967		i += strlen(argv[j]) + 1;
4968		saved_command_line = malloc(i);
4969		if (!saved_command_line) {
4970		fprintf(stderr, "grubby: %m\n");
4971		exit(1);
4972		}
4973		saved_command_line[0] = '\0';
4974		for (int j = 1; j < argc; j++) {
4975		strcat(saved_command_line, argv[j]);
4976		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4977		}
4978
4979		optCon = poptGetContext("grubby", argc, argv, options, 0);
4980		poptReadDefaultConfig(optCon, 1);
4981
4982		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4983		switch (arg) {
4984		case 'v':
4985		printf("grubby version %s\n", VERSION);
4986		exit(0);
4987		break;
4988		case 'i':
4989		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4990		extraInitrds[extraInitrdCount++] =
4991		strdup(poptGetOptArg(optCon));
4992		} else {
4993		fprintf(stderr,
4994		_
4995		("grubby: extra initrd maximum is %d\n"),
4996		extraInitrdCount);
4997		return 1;
4998		}
4999		break;
5000		}
5001		}
5002
5003	markRemovedImage(config, removeKernelPath, bootPrefix);	if (arg < -1) {
5004	markRemovedImage(config, removeMBKernel, bootPrefix);	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5005	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5006	bootPrefix, flags);	poptStrerror(arg));
5007	setFallbackImage(config, newKernelPath != NULL);	return 1;
5008	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	}
5009	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;
5010	if (updateKernelPath && newKernelInitrd) {	if ((chptr = poptGetArg(optCon))) {
5011	if (updateInitrd(config, updateKernelPath, bootPrefix,	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5012	newKernelInitrd)) return 1;	return 1;
5013	}	}
5014	if (addNewKernel(config, template, bootPrefix, newKernelPath,
5015	newKernelTitle, newKernelArgs, newKernelInitrd,	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5016	extraInitrds, extraInitrdCount,	configureYaboot + configureSilo + configureZipl +
5017	newMBKernel, newMBKernelArgs)) return 1;	configureExtLinux) > 1) {
5018		fprintf(stderr,
5019		_("grubby: cannot specify multiple bootloaders\n"));
5020	if (numEntries(config) == 0) {	return 1;
5021	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	} else if (bootloaderProbe && grubConfig) {
5022	"Not writing out new config.\n"));	fprintf(stderr,
5023	return 1;	_
5024	}	("grubby: cannot specify config file with --bootloader-probe\n"));
5025		return 1;
5026		} else if (configureGrub2) {
5027		cfi = &grub2ConfigType;
5028		if (envPath)
5029		cfi->envFile = envPath;
5030		} else if (configureLilo) {
5031		cfi = &liloConfigType;
5032		} else if (configureGrub) {
5033		cfi = &grubConfigType;
5034		} else if (configureELilo) {
5035		cfi = &eliloConfigType;
5036		} else if (configureYaboot) {
5037		cfi = &yabootConfigType;
5038		} else if (configureSilo) {
5039		cfi = &siloConfigType;
5040		} else if (configureZipl) {
5041		cfi = &ziplConfigType;
5042		} else if (configureExtLinux) {
5043		cfi = &extlinuxConfigType;
5044		useextlinuxmenu = 1;
5045		}
5046
5047		if (!cfi) {
5048		if (grub2FindConfig(&grub2ConfigType)) {
5049		cfi = &grub2ConfigType;
5050		if (envPath)
5051		cfi->envFile = envPath;
5052		} else
5053		#ifdef __ia64__
5054		cfi = &eliloConfigType;
5055		#elif __powerpc__
5056		cfi = &yabootConfigType;
5057		#elif __sparc__
5058		cfi = &siloConfigType;
5059		#elif __s390__
5060		cfi = &ziplConfigType;
5061		#elif __s390x__
5062		cfi = &ziplConfigtype;
5063		#else
5064		cfi = &grubConfigType;
5065		#endif
5066		}
5067
5068		if (!grubConfig) {
5069		if (cfi->findConfig)
5070		grubConfig = cfi->findConfig(cfi);
5071		if (!grubConfig)
5072		grubConfig = cfi->defaultConfig;
5073		}
5074
5075		if (bootloaderProbe && (displayDefault || kernelInfo ||
5076		newKernelPath || removeKernelPath || makeDefault
5077		|| defaultKernel || displayDefaultIndex
5078		|| displayDefaultTitle
5079		|| (defaultIndex >= 0))) {
5080		fprintf(stderr,
5081		_("grubby: --bootloader-probe may not be used with "
5082		"specified option"));
5083		return 1;
5084		}
5085
5086		if ((displayDefault || kernelInfo) && (newKernelPath ||
5087		removeKernelPath)) {
5088		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5089		"be used when adding or removing kernels\n"));
5090		return 1;
5091		}
5092
5093		if (newKernelPath && !newKernelTitle) {
5094		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5095		return 1;
5096		} else if (!newKernelPath && (copyDefault ||
5097		(newKernelInitrd && !updateKernelPath) ||
5098		makeDefault || extraInitrdCount > 0)) {
5099		fprintf(stderr, _("grubby: kernel path expected\n"));
5100		return 1;
5101		}
5102
5103		if (newKernelPath && updateKernelPath) {
5104		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5105		"not be used together"));
5106		return 1;
5107		}
5108
5109		if (makeDefault && defaultKernel) {
5110		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5111		"may not be used together\n"));
5112		return 1;
5113		} else if (defaultKernel && removeKernelPath &&
5114		!strcmp(defaultKernel, removeKernelPath)) {
5115		fprintf(stderr,
5116		_("grubby: cannot make removed kernel the default\n"));
5117		return 1;
5118		} else if (defaultKernel && newKernelPath &&
5119		!strcmp(defaultKernel, newKernelPath)) {
5120		makeDefault = 1;
5121		defaultKernel = NULL;
5122		} else if (defaultKernel && (defaultIndex >= 0)) {
5123		fprintf(stderr,
5124		_("grubby: --set-default and --set-default-index "
5125		"may not be used together\n"));
5126		return 1;
5127		}
5128
5129		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5130		fprintf(stderr,
5131		_("grubby: output file must be specified if stdin "
5132		"is used\n"));
5133		return 1;
5134		}
5135
5136		if (!removeKernelPath && !newKernelPath && !displayDefault
5137		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5138		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5139		&& !displayDefaultTitle && (defaultIndex == -1)) {
5140		fprintf(stderr, _("grubby: no action specified\n"));
5141		return 1;
5142		}
5143
5144		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5145
5146		if (cfi->needsBootPrefix) {
5147		if (!bootPrefix) {
5148		bootPrefix = findBootPrefix();
5149		if (!bootPrefix)
5150		return 1;
5151		} else {
5152		/* this shouldn't end with a / */
5153		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5154		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5155		}
5156		} else {
5157		bootPrefix = "";
5158		}
5159
5160		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5161		fprintf(stderr,
5162		_("grubby: %s doesn't allow multiple initrds\n"),
5163		cfi->defaultConfig);
5164		return 1;
5165		}
5166
5167		if (bootloaderProbe) {
5168		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5169		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5170
5171		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5172		if (grub2config) {
5173		gconfig = readConfig(grub2config, &grub2ConfigType);
5174		if (!gconfig)
5175		gr2c = 1;
5176		else
5177		gr2c = checkForGrub2(gconfig);
5178		}
5179
5180		const char *grubconfig = grubFindConfig(&grubConfigType);
5181		if (!access(grubconfig, F_OK)) {
5182		gconfig = readConfig(grubconfig, &grubConfigType);
5183		if (!gconfig)
5184		grc = 1;
5185		else
5186		grc = checkForGrub(gconfig);
5187		}
5188
5189		if (!access(liloConfigType.defaultConfig, F_OK)) {
5190		lconfig =
5191		readConfig(liloConfigType.defaultConfig,
5192		&liloConfigType);
5193		if (!lconfig)
5194		lrc = 1;
5195		else
5196		lrc = checkForLilo(lconfig);
5197		}
5198
5199		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5200		econfig = readConfig(eliloConfigType.defaultConfig,
5201		&eliloConfigType);
5202		if (!econfig)
5203		erc = 1;
5204		else
5205		erc = checkForElilo(econfig);
5206		}
5207
5208		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5209		lconfig =
5210		readConfig(extlinuxConfigType.defaultConfig,
5211		&extlinuxConfigType);
5212		if (!lconfig)
5213		extrc = 1;
5214		else
5215		extrc = checkForExtLinux(lconfig);
5216		}
5217
5218		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5219		yconfig = readConfig(yabootConfigType.defaultConfig,
5220		&yabootConfigType);
5221		if (!yconfig)
5222		yrc = 1;
5223		else
5224		yrc = checkForYaboot(yconfig);
5225		}
5226
5227		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5228		|| erc == 1)
5229		return 1;
5230
5231		if (lrc == 2)
5232		printf("lilo\n");
5233		if (gr2c == 2)
5234		printf("grub2\n");
5235		if (grc == 2)
5236		printf("grub\n");
5237		if (extrc == 2)
5238		printf("extlinux\n");
5239		if (yrc == 2)
5240		printf("yaboot\n");
5241		if (erc == 2)
5242		printf("elilo\n");
5243
5244		return 0;
5245		}
5246
5247		if (grubConfig == NULL) {
5248		printf("Could not find bootloader configuration file.\n");
5249		exit(1);
5250		}
5251
5252		config = readConfig(grubConfig, cfi);
5253		if (!config)
5254		return 1;
5255
5256		if (displayDefault) {
5257		struct singleLine *line;
5258		struct singleEntry *entry;
5259		char *rootspec;
5260
5261		if (config->defaultImage == NO_DEFAULT_ENTRY)
5262		return 0;
5263		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5264		cfi->defaultIsSaved)
5265		config->defaultImage = FIRST_ENTRY_INDEX;
5266		entry = findEntryByIndex(config, config->defaultImage);
5267		if (!entry)
5268		return 0;
5269		if (!suitableImage(entry, bootPrefix, 0, flags))
5270		return 0;
5271
5272		line =
5273		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5274		LT_KERNEL_16, entry->lines);
5275		if (!line)
5276		return 0;
5277
5278		rootspec = getRootSpecifier(line->elements[1].item);
5279		printf("%s%s\n", bootPrefix, line->elements[1].item +
5280		((rootspec != NULL) ? strlen(rootspec) : 0));
5281
5282		return 0;
5283
5284		} else if (displayDefaultTitle) {
5285		struct singleLine *line;
5286		struct singleEntry *entry;
5287
5288		if (config->defaultImage == NO_DEFAULT_ENTRY)
5289		return 0;
5290		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5291		cfi->defaultIsSaved)
5292		config->defaultImage = FIRST_ENTRY_INDEX;
5293		entry = findEntryByIndex(config, config->defaultImage);
5294		if (!entry)
5295		return 0;
5296
5297		if (!configureGrub2) {
5298		char *title;
5299		line = getLineByType(LT_TITLE, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = extractTitle(config, line);
5303		if (!title)
5304		return 0;
5305		printf("%s\n", title);
5306		free(title);
5307		} else {
5308		char *title;
5309
5310		dbgPrintf
5311		("This is GRUB2, default title is embeded in menuentry\n");
5312		line = getLineByType(LT_MENUENTRY, entry->lines);
5313		if (!line)
5314		return 0;
5315		title = grub2ExtractTitle(line);
5316		if (title)
5317		printf("%s\n", title);
5318		}
5319		return 0;
5320
5321		} else if (displayDefaultIndex) {
5322		if (config->defaultImage == NO_DEFAULT_ENTRY)
5323		return 0;
5324		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5325		cfi->defaultIsSaved)
5326		config->defaultImage = FIRST_ENTRY_INDEX;
5327		printf("%i\n", config->defaultImage);
5328		return 0;
5329
5330		} else if (kernelInfo)
5331		return displayInfo(config, kernelInfo, bootPrefix);
5332
5333		if (copyDefault) {
5334		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5335		if (!template)
5336		return 1;
5337		}
5338
5339		markRemovedImage(config, removeKernelPath, bootPrefix);
5340		markRemovedImage(config, removeMBKernel, bootPrefix);
5341		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5342		makeDefault, bootPrefix, flags, defaultIndex,
5343		newIndex);
5344		setFallbackImage(config, newKernelPath != NULL);
5345		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5346		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5347		return 1;
5348		if (updateKernelPath && newKernelInitrd) {
5349		if (newMBKernel) {
5350		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5351		bootPrefix, newKernelInitrd,
5352		newKernelTitle))
5353		return 1;
5354		} else {
5355		if (updateInitrd(config, updateKernelPath, bootPrefix,
5356		newKernelInitrd, newKernelTitle))
5357		return 1;
5358		}
5359		}
5360		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5361		newKernelTitle, newKernelArgs, newKernelInitrd,
5362		(const char **)extraInitrds, extraInitrdCount,
5363		newMBKernel, newMBKernelArgs, newDevTreePath,
5364		newIndex))
5365		return 1;
5366
5367		if (numEntries(config) == 0) {
5368		fprintf(stderr,
5369		_("grubby: doing this would leave no kernel entries. "
5370		"Not writing out new config.\n"));
5371		return 1;
5372		}
5373
5374	if (!outputFile)	if (!outputFile)
5375	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5376
5377	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5378	}	}

---

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Legend: Removed from v.1747   changed lines   Added in v.3025