Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1853 by niro, Mon Jul 2 13:12:07 2012 UTC	revision 3027 by niro, Tue Jun 27 14:45:42 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/boot/grub/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/menu.lst",	"/boot/grub/grub.conf",
200	"/etc/grub.conf",	"/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		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{NULL, 0, 0},
250	};	};
251
252	const char *grub2FindConfig(struct configFileInfo *cfi) {	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static const char *configFiles[] = {	{
254	"/boot/grub/grub-efi.cfg",	static const char *configFiles[] = {
255	"/boot/grub/grub.cfg",	"/boot/grub/grub-efi.cfg",
256	NULL	"/boot/grub/grub.cfg",
257	};	"/etc/grub2-efi.cfg",
258	static int i = -1;	"/etc/grub2.cfg",
259	static const char *grub_cfg = "/boot/grub/grub.cfg";	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261	if (i == -1) {	NULL
262	for (i = 0; configFiles[i] != NULL; i++) {	};
263	dbgPrintf("Checking \"%s\": ", configFiles[i]);	static int i = -1;
264	if (!access(configFiles[i], R_OK)) {	static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366	dbgPrintf("not found\n");	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	return configFiles[i];	{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int count = 0;	{
400		int count = 0;
401
402	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	char *grub2ExtractTitle(struct singleLine * line) {	static int iskernel(enum lineType_e type)
429	char * current;	{
430	char * current_indent;	return (type == LT_KERNEL || type == LT_KERNEL_EFI
431	int current_len;	|| type == LT_KERNEL_16);
432	int current_indent_len;	}
433	int i;
434		static int isinitrd(enum lineType_e type)
435	/* bail out if line does not start with menuentry */	{
436	if (strcmp(line->elements[0].item, "menuentry"))	return (type == LT_INITRD || type == LT_INITRD_EFI
437	return NULL;	|| type == LT_INITRD_16);
438		}
	i = 1;
	current = line->elements[i].item;
	current_len = strlen(current);
	/* if second word is quoted, strip the quotes and return single word */
	if (isquote(*current) && isquote(current[current_len - 1])) {
	char *tmp;
	tmp = strdup(current);
	*(tmp + current_len - 1) = '\0';
	return ++tmp;
	}
439
440	/* if no quotes, return second word verbatim */	char *grub2ExtractTitle(struct singleLine *line)
441	if (!isquote(*current))	{
442	return current;	char *current;
443		char *current_indent;
444	/* second element start with a quote, so we have to find the element	int current_len;
445	* whose last character is also quote (assuming it's the closing one) */	int current_indent_len;
446	int resultMaxSize;	int i;
447	char * result;
448		/* bail out if line does not start with menuentry */
449	resultMaxSize = sizeOfSingleLine(line);	if (strcmp(line->elements[0].item, "menuentry"))
450	result = malloc(resultMaxSize);	return NULL;
451	snprintf(result, resultMaxSize, "%s", ++current);
452		i = 1;
	i++;
	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 (!isquote(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 tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 1,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		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	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
763	if (kw->type == type)	int kwl = strlen(kw->key);
764	return kw;	int ll = strlen(label);
765		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	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	if (!blkid)
843	if (!strcmp(keyword, kw->key))	blkid_get_cache(&blkid, NULL);
844	return kw->type;
845	}	return blkid_get_tag_value(blkid, "UUID", device);
	return LT_UNKNOWN;
846	}	}
847
848	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct singleLine * line) {	struct configFileInfo *cfi)
850	dbgPrintf("getLineByType(%d): ", type);	{
851	for (; line; line = line->next) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	dbgPrintf("%d:%s ", line->type,	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	line->numElements ? line->elements[0].item : "(empty)");	return kw->type;
854	if (line->type & type) break;	}
855	}	return LT_UNKNOWN;
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
856	}	}
857
858	static int isBracketedTitle(struct singleLine * line) {	static struct singleLine *getLineByType(enum lineType_e type,
859	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct singleLine *line)
860	int len = strlen(line->elements[0].item);	{
861	if (*(line->elements[0].item + len - 1) == ']') {	dbgPrintf("getLineByType(%d): ", type);
862	/* FIXME: this is a hack... */	for (; line; line = line->next) {
863	if (strcmp(line->elements[0].item, "[defaultboot]")) {	dbgPrintf("%d:%s ", line->type,
864	return 1;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	}	if (line->type & type)
867	}	break;
868	return 0;	}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isEntryStart(struct singleLine * line,	static int isBracketedTitle(struct singleLine *line)
874	struct configFileInfo * cfi) {	{
875	return line->type == cfi->entryStart || line->type == LT_OTHER ||	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	(cfi->titleBracketed && isBracketedTitle(line));	int len = strlen(line->elements[0].item);
877		if (*(line->elements[0].item + len - 1) == ']') {
878		/* FIXME: this is a hack... */
879		if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885	}	}
886
887	/* extract the title from within brackets (for zipl) */	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	static char * extractTitle(struct singleLine * line) {	{
889	/* bracketed title... let's extract it (leaks a byte) */	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	char * title;	(cfi->titleBracketed && isBracketedTitle(line));
891	title = strdup(line->elements[0].item);	}
	title++;
	*(title + strlen(title) - 1) = '\0';
	return title;
	}
	static int readFile(int fd, char ** bufPtr) {
	int alloced = 0, size = 0, i = 0;
	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;
	}
892
893	buf = realloc(buf, size + 2);	/* extract the title from within brackets (for zipl) */
894	if (size == 0)	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	buf[size++] = '\n';	{
896	else	/* bracketed title... let's extract it */
897	if (buf[size - 1] != '\n')	char *title = NULL;
898	buf[size++] = '\n';	if (line->type == LT_TITLE) {
899	buf[size] = '\0';	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	*bufPtr = buf;	static int readFile(int fd, char **bufPtr)
915		{
916		int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919	return 0;	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 lineInit(struct singleLine * line) {	if (i < 0) {
928	line->indent = NULL;	fprintf(stderr, _("error reading input: %s\n"),
929	line->elements = NULL;	strerror(errno));
930	line->numElements = 0;	free(buf);
931	line->next = NULL;	return 1;
932	}	}
	struct singleLine * lineDup(struct singleLine * line) {
	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 (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
933
934	return newLine;	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	static void lineFree(struct singleLine * line) {	*bufPtr = buf;
	if (line->indent) free(line->indent);
942
943	for (int i = 0; i < line->numElements; i++) {	return 0;
944	free(line->elements[i].item);	}
	free(line->elements[i].indent);
	}
945
946	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
947	lineInit(line);	{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	/* Need to handle this, because we strip the quotes from	newLine->next = NULL;
961	* menuentry when read it. */	newLine->type = line->type;
962	if (line->type == LT_MENUENTRY && i == 1) {	newLine->numElements = line->numElements;
963	if(!isquote(*line->elements[i].item))	newLine->elements = malloc(sizeof(*newLine->elements) *
964	fprintf(out, "\'%s\'", line->elements[i].item);	newLine->numElements);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
965
966	continue;	for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
972	if (fputc('"', out) == EOF) return -1;	}
	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;
	if (i < line->numElements - 1)
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int 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 (int 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)) {
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (int i = 1; i < line->numElements; i++) {
	char *p;
	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 (int 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	line->elements[i + 1].indent = 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		}
1192		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;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int len;
	char * buf;
	if (!strcmp(inName, "-")) {
	in = 0;
	} else {
	if ((in = open(inName, O_RDONLY)) < 0) {
	fprintf(stderr, _("error opening %s for read: %s\n"),
	inName, strerror(errno));
	return NULL;
	}
	}
	rc = readFile(in, &incoming);
	close(in);
	if (rc) return NULL;
	head = incoming;
	cfg = malloc(sizeof(*cfg));
	cfg->primaryIndent = strdup("");
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1262
1263	if (getNextLine(&head, line, cfi)) {	static struct grubConfig *readConfig(const char *inName,
1264	free(line);	struct configFileInfo *cfi)
1265	/* XXX memory leak of everything in cfg */	{
1266	return NULL;	int in;
1267	}	char *incoming = NULL, *head;
1268		int rc;
1269	if (!sawEntry && line->numElements) {	int sawEntry = 0;
1270	free(cfg->primaryIndent);	int movedLine = 0;
1271	cfg->primaryIndent = strdup(line->indent);	struct grubConfig *cfg;
1272	} else if (line->numElements) {	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	free(cfg->secondaryIndent);	char *end;
1274	cfg->secondaryIndent = strdup(line->indent);	struct singleEntry *entry = NULL;
1275	}	int len;
1276		char *buf;
1277	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1278	sawEntry = 1;	if (inName == NULL) {
1279	if (!entry) {	printf("Could not find bootloader configuration\n");
1280	cfg->entries = malloc(sizeof(*entry));	exit(1);
1281	entry = cfg->entries;	} else if (!strcmp(inName, "-")) {
1282	} else {	in = 0;
1283	entry->next = malloc(sizeof(*entry));	} else {
1284	entry = entry->next;	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	entry->skip = 0;	rc = readFile(in, &incoming);
1292	entry->multiboot = 0;	close(in);
1293	entry->lines = NULL;	if (rc)
1294	entry->next = NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1298	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->primaryIndent = strdup("");
1299	dbgPrintf("%s", line->indent);	cfg->secondaryIndent = strdup("\t");
1300	for (int i = 0; i < line->numElements; i++)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	cfg->cfi = cfi;
1302	dbgPrintf("\n");	cfg->theLines = NULL;
1303	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->entries = NULL;
1304	if (kwType && line->numElements == 3 &&	cfg->fallbackImage = 0;
1305	!strcmp(line->elements[1].item, kwType->key)) {	cfg->isModified = 0;
1306	dbgPrintf("Line sets default config\n");
1307	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	/* copy everything we have */
1308	defaultLine = line;	while (*head) {
1309	}	line = malloc(sizeof(*line));
1310	} else if (line->type == LT_DEFAULT && line->numElements == 2) {	lineInit(line);
1311	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1312	defaultLine = line;	if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314	} else if (line->type == LT_KERNEL) {	/* XXX memory leak of everything in cfg */
1315	/* if by some freak chance this is multiboot and the "module"	return NULL;
1316	* 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.
	*/
	for (struct singleLine *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 (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1317
1318	for (int i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1320	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1328	free(line->elements[i].indent);	if (!entry) {
1329	}	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1333	line->elements[line->numElements - 1].indent;	entry = entry->next;
1334	line->elements[1].item = buf;	}
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
	/* allocate mem for extra flags. */
	extras = malloc(len + 1);
	*extras = '\0';
	/* get title. */
	for (int i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (isquote(*line->elements[i].item))
	title = line->elements[i].item + 1;
	else
	title = line->elements[i].item;
1335
1336	len = strlen(title);	entry->skip = 0;
1337	if (isquote(title[len-1])) {	entry->multiboot = 0;
1338	strncat(buf, title,len-1);	entry->lines = NULL;
1339	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1340	}	}
	}
	/* get extras */
	int count = 0;
	for (int i = 0; i < line->numElements; i++) {
	if (count >= 2) {
	strcat(extras, line->elements[i].item);
	strcat(extras, line->elements[i].indent);
	}
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	/* count ' or ", there should be two in menuentry line. */
	if (isquote(*line->elements[i].item))
	count++;
	len = strlen(line->elements[i].item);
	if (isquote(line->elements[i].item[len -1]))
	count++;
	/* ok, we get the final ' or ", others are extras. */
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(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;
1341
1342	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1343	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1344	entry->lines = line;	line->numElements);
1345	else	dbgPrintf("%s", line->indent);
1346	last->next = line;	for (int i = 0; i < line->numElements; i++)
1347	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1350	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1351	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1352	sawEntry = 0;	if (kwType && line->numElements == 3
1353	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (!cfg->theLines)	&& !is_special_grub2_variable(
1355	cfg->theLines = line;	line->elements[2].item)) {
1356	else	dbgPrintf("Line sets default config\n");
1357	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368	last = line;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	free(incoming);	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	if (defaultLine) {	cfg->fallbackImage =
1391	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1392	cfi->defaultSupportSaved &&	if (*end)
1393	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1394	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1395	} else if (cfi->defaultIsVariable) {	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	char *value = defaultLine->elements[2].item;	|| (line->type == LT_TITLE
1397	while (*value && (*value == '"' || *value == '\'' ||	&& line->numElements > 1)) {
1398	*value == ' ' || *value == '\t'))	/* make the title/default a single argument (undoing
1399	value++;	* our parsing) */
1400	cfg->defaultImage = strtol(value, &end, 10);	len = 0;
1401	while (*end && (*end == '"' || *end == '\'' ||	for (int i = 1; i < line->numElements; i++) {
1402	*end == ' ' || *end == '\t'))	len += strlen(line->elements[i].item);
1403	end++;	len += strlen(line->elements[i].indent);
1404	if (*end) cfg->defaultImage = -1;	}
1405	} else if (cfi->defaultSupportSaved &&	buf = malloc(len + 1);
1406	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	*buf = '\0';
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	int 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;
	}
1407
1408	if (entry){	for (int i = 1; i < line->numElements; i++) {
1409	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1410	}else{	free(line->elements[i].item);
1411	cfg->defaultImage = -1;
1412	}	if ((i + 1) != line->numElements) {
1413	}	strcat(buf, line->elements[i].indent);
1414	} else {	free(line->elements[i].indent);
1415	cfg->defaultImage = 0;	}
1416	}	}
1417
1418	return cfg;	line->elements[1].indent =
1419	}	line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		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	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1438	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1439	struct singleEntry * entry;	*extras = '\0';
1440	struct singleLine * line;
1441	int i;	/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1446	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1447	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)	&& quote_char == '\0') {
1448	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1449	else if (cfg->defaultImage > -1) {	quote_char = *line->elements[i].item;
1450	if (cfg->cfi->defaultIsIndex) {	title = line->elements[i].item + 1;
1451	if (cfg->cfi->defaultIsVariable) {	} else {
1452	fprintf(out, "%sset default=\"%d\"\n", indent,	title = line->elements[i].item;
1453	cfg->defaultImage);	}
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1454
1455	entry = cfg->entries;	len = strlen(title);
1456	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	i = 0;	/* get extras */
1466	while (entry && i < image) {	int count = 0;
1467	entry = entry->next;	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	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1476	i++;	(line->elements[i].item, "menuentry"))
1477	}	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	if (!entry) return;	len = strlen(line->elements[i].item);
1488
1489	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1494	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1495	line->elements[1].item);	line->elements[1].indent =
1496	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1497	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1498	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1499	extractTitle(line));	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	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1511	const char * prefix) {	memmove(line->elements[1].item,
1512	FILE * out;	line->elements[1].item + 1,
1513	struct singleLine * line;	strlen(line->elements[1].item +
1514	struct singleEntry * entry;	1) + 1);
1515	char * tmpOutName;
1516	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1517	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1518	int i;	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520	if (!strcmp(outName, "-")) {	}
1521	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(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;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	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	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	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	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
1581
1582	return 0;	free(incoming);
	}
1583
1584	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int i = 0;	if (defaultLine) {
1586	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1589	while (entry) {	"\"${saved_entry}\"", 16)) {
1590	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1591	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592	entry = entry->next;	if (cfg->cfi->getEnv) {
1593	}	char *defTitle =
1594	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return 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;
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	char *foundanswer = NULL;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/* remember the last / entry in mtab */
	foundanswer = devname;
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1964
1965	/* Return the last / entry found */	/*
1966	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1967	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1968	*chptr = '\0';	* on to the next line.
1969	return strdup(foundanswer);	*/
1970	}	if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977		/* Seek to the next space */
1978		chptr = strchr(chptr, ' ');
1979		if (!chptr) {
1980		fprintf(stderr, "grubby: error parsing %s: %s\n",
1981		_PATH_MOUNTED, strerror(errno));
1982		return NULL;
1983		}
1984
1985		/*
1986		* The second column of a mtab entry is the mount point, we
1987		* are looking for '/' obviously.
1988		*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994	return NULL;	/* Next line */
1995		chptr = strchr(chptr, '\n');
1996		if (chptr)
1997		chptr++;
1998		}
1999
2000		/* Return the last / entry found */
2001		if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007		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	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2019	* menuentry when read it. */	* menuentry when read it. */
2020	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2021	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2022	fprintf(stderr, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2023	else	line->elements[i].item);
2024	fprintf(stderr, "%s", line->elements[i].item);	else
2025	fprintf(stderr, "%s", line->elements[i].indent);	log_message(f, "%s",
2026		line->elements[i].item);
2027	continue;	log_message(f, "%s", line->elements[i].indent);
2028	}
2029		continue;
2030	fprintf(stderr, "%s%s",	}
2031	line->elements[i].item, line->elements[i].indent);
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 1550  static int endswith(const char *s, char	Line 2091  static int endswith(const char *s, char
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	} else {	rootspec = getRootSpecifier(line->elements[1].item);
2130	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	int hasslash = endswith(bootPrefix, '/') ||
2132	*/	beginswith(line->elements[1].item + rootspec_offset, '/');
2133	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135	/* failed to find one */	if (access(fullName, R_OK)) {
2136	if (!line) {	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	notSuitablePrintf(entry, "no line found\n");
2137	return 0;	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 {
2145		/* look for a lilo style LT_ROOT line */
2146		line = getLineByType(LT_ROOT, entry->lines);
2147
2148		if (line && line->numElements >= 2) {
2149		dev = line->elements[1].item;
2150		} else {
2151		/* didn't succeed in finding a LT_ROOT, let's try
2152		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154		*/
2155		line =
2156		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157		entry->lines);
2158
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2166	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2167	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2168	dev = line->elements[i].item + 5;	break;
2169	else {	if (i < line->numElements)
2170	notSuitablePrintf(entry, "no root= entry found\n");	dev = line->elements[i].item + 5;
2171	/* it failed too...  can't find root= */	else {
2172	return 0;	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
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	i = 0;	if (*chptr) {
2241	indexVars[i] = strtol(kernel, &chptr, 10);	/* can't parse it, bail */
2242	while (*chptr == ',') {	return NULL;
2243	i++;	}
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2244
2245	if (*chptr) {	indexVars[i + 1] = -1;
	/* can't parse it, bail */
	return NULL;
	}
2246
2247	indexVars[i + 1] = -1;	i = 0;
2248		if (index) {
2249	i = 0;	while (i < *index) {
2250	if (index) {	i++;
2251	while (i < *index) i++;	if (indexVars[i] == -1)
2252	if (indexVars[i] == -1) return NULL;	return NULL;
2253	}	}
2254		}
2255
2256	entry = findEntryByIndex(config, indexVars[i]);	entry = findEntryByIndex(config, indexVars[i]);
2257	if (!entry) 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	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2288	if (!line) return NULL;	if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	if (index) *index = indexVars[i];	if (entry && index)
2294	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2295	} else {	} else {
2296	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2297	if (entry && entry->skip)	i = *index;
2298	entry = NULL;	else
2299	else if (index)	i = 0;
2300	*index = config->defaultImage;
2301	}	if (!strncmp(kernel, "TITLE=", 6)) {
2302	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2303	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2304	i = *index;	kernel += 6;
2305	else	}
2306	i = 0;
2307		for (entry = findEntryByIndex(config, i); entry;
2308		entry = entry->next, i++) {
2309		if (entry->skip)
2310		continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346		/* make sure this entry has a kernel identifier; this skips
2347		* non-Linux boot entries (could find netbsd etc, though, which is
2348		* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357	while ((entry = findEntryByIndex(config, i))) {	if (index)
2358	if (!entry->skip) break;	*index = i;
	i++;
2359	}	}
2360
2361	if (entry && index)	return entry;
2362	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2363
2364	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	prefix = "";	int *index)
2366	checkType = LT_TITLE|LT_MENUENTRY;	{
2367	kernel += 6;	struct singleEntry *entry;
2368	}	struct singleLine *line;
2369		int i;
2370	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2371	if (entry->skip) continue;
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2374		continue;
2375	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
2376	for (line = entry->lines; line; line = line->next) {	if (!line)
2377	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	line = getLineByType(LT_MENUENTRY, entry->lines);
2378	LT_KERNEL|LT_MBMODULE|LT_HYPER :	if (!line)
2379	checkType, line);	continue;
2380	if (!line) break;  /* not found in this entry */	newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382	if (line && line->type != LT_MENUENTRY &&	continue;
2383	line->numElements >= 2) {	if (!strcmp(title, newtitle))
	rootspec = getRootSpecifier(line->elements[1].item);
	if (!strcmp(line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0),
	kernel + strlen(prefix)))
2384	break;	break;
	}
	if(line->type == LT_MENUENTRY &&
	!strcmp(line->elements[1].item, kernel))
	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 1792  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;
	/* check and see if we're removing the default image */
	if (isdigit(*image)) {
	entry = findEntryByPath(cfg, image, prefix, NULL);
	if(entry)
	entry->skip = 1;
	return;
	}
2504
2505	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2506	entry->skip = 1;	return;
	}
2507
2508	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2509	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2510	const char * prefix, int flags) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2512	int i, j;	entry->skip = 1;
2513		return;
	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;
2514	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2515
2516	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	/* we can preserve the default */	entry->skip = 1;
	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;
	}
2518	}	}
2519
2520	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	int j;	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524	if (config->fallbackImage == -1) return;	{
2525		struct singleEntry *bootEntry, *newDefault;
2526	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2527
2528	if (hasNew)	/* initialize */
2529	config->fallbackImage++;	currentLookupIndex = FIRST_ENTRY_INDEX;
	/* 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--;
	}
	}
2530
2531	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* handle the two cases where the user explictly picks the default
2532	struct singleLine * line;	* boot entry index as it would exist post-modification */
	char * root = NULL;
	int i;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2533
2534	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* Case 1: user chose to make the latest boot entry the default */
2535	printf("kernel=%s\n", line->elements[1].item);	if (newBootEntryIsDefault) {
2536	else	config->defaultImage = newBootEntryIndex;
2537	printf("kernel=%s%s\n", prefix, line->elements[1].item);	return;
2538		}
2539	if (line->numElements >= 3) {
2540	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2541	i = 2;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2542	while (i < line->numElements) {	&& config->cfi->defaultIsIndex) {
2543	if (!strncmp(line->elements[i].item, "root=", 5)) {	indexToVerify = newDefaultBootEntryIndex;
2544	root = line->elements[i].item + 5;
2545	} else {	/* user chose to make latest boot entry the default */
2546	printf("%s%s", line->elements[i].item,	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2547	line->elements[i].indent);	config->defaultImage = newBootEntryIndex;
2548	}	return;
2549		}
2550
2551	i++;	/* the user picks the default index based on the
2552	}	* order of the bootloader configuration after
2553	printf("\"\n");	* modification; ensure we are checking for the
2554	} else {	* existence of the correct entry */
2555	line = getLineByType(LT_KERNELARGS, entry->lines);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2556	if (line) {	if (!config->isModified)
2557	char * s;	indexToVerify--;
2558		}
2559
2560	printf("args=\"");	/* verify the user selected index will exist */
2561	i = 1;	if (findEntryByIndex(config, indexToVerify)) {
2562	while (i < line->numElements) {	config->defaultImage = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
2563	} else {	} else {
2564	s = line->elements[i].item;	config->defaultImage = NO_DEFAULT_ENTRY;
	printf("%s%s", s, line->elements[i].indent);
2565	}	}
2566
2567	i++;	return;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
2568	}	}
	}
	if (!root) {
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2569
2570	if (root) {	/* handle cases where the index value may shift */
	char * s = alloca(strlen(root) + 1);
	strcpy(s, root);
	if (s[strlen(s) - 1] == '"')
	s[strlen(s) - 1] = '\0';
	/* make sure the root doesn't have a trailing " */
	printf("root=%s\n", s);
	}
2571
2572	line = getLineByType(LT_INITRD, entry->lines);	/* check validity of existing default or first-entry-found
2573		selection */
2574		if (defaultKernelPath) {
2575		/* we must initialize this */
2576		firstKernelEntryIndex = 0;
2577		/* user requested first-entry-found */
2578		if (!findEntryByPath(config, defaultKernelPath,
2579		prefix, &firstKernelEntryIndex)) {
2580		/* don't change default if can't find match */
2581		config->defaultImage = NO_DEFAULT_ENTRY;
2582		return;
2583		}
2584
2585	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2586
2587	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2588	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2589
2590	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2591	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2592	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2593	} else {	config->defaultImage++;
2594	char * title;	}
2595	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2596	title = grub2ExtractTitle(line);	/* check to see if the default is stored in the environment */
2597	if (title)	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2598	printf("title=%s\n", title);	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2599	}	{
2600	}	if (config->cfi->defaultIsSaved) {
2601		if (config->cfi->getEnv) {
2602		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2603
2604		if (defaultTitle) {
2605		if (isnumber(defaultTitle)) {
2606		currentLookupIndex = atoi(defaultTitle);
2607		} else {
2608		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2609		}
2610		/* set the default Image to an actual index */
2611		config->defaultImage = currentLookupIndex;
2612		}
2613		}
2614		}
2615		}
2616		} else {
2617		/* use pre-existing default entry from the file*/
2618		currentLookupIndex = config->defaultImage;
2619		}
2620
2621	int isSuseSystem(void) {	if (isAddingBootEntry
2622	const char * path;	&& (newBootEntryIndex <= config->defaultImage)) {
2623	const static char default_path[] = "/etc/SuSE-release";	config->defaultImage++;
2624
2625	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	if (config->isModified) {
2626	path = default_path;	currentLookupIndex++;
2627		}
2628		}
2629		}
2630
2631	if (!access(path, R_OK))	/* sanity check - is this entry index valid? */
2632	return 1;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	return 0;
	}
2633
2634	int isSuseGrubConf(const char * path) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2635	FILE * grubConf;	/* entry is to be skipped or is invalid */
2636	char * line = NULL;	if (isAddingBootEntry) {
2637	size_t len = 0, res = 0;	config->defaultImage = newBootEntryIndex;
2638		return;
2639	grubConf = fopen(path, "r");	}
2640	if (!grubConf) {	newDefault =
2641	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	findTemplate(config, prefix, &config->defaultImage, 1,
2642	return 0;	flags);
2643	}	if (!newDefault) {
2644		config->defaultImage = NO_DEFAULT_ENTRY;
2645		}
2646
2647	while ((res = getline(&line, &len, grubConf)) != -1) {	return;
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
2648	}	}
	}
2649
2650	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	currentLookupIndex--;
	path);
2651
2652	fclose(grubConf);	/* decrement index by the total number of entries deleted */
	free(line);
	return 0;
	}
2653
2654	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (indexToVerify = currentLookupIndex;
2655	FILE * grubConf;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	char * line = NULL;
	size_t res = 0, len = 0;
	if (!path) return 1;
	if (!lbaPtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
	}
2656
2657	if (!strncmp(line, "setup", 5)) {	bootEntry = findEntryByIndex(config, indexToVerify);
	if (strstr(line, "--force-lba")) {
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2658
2659	free(line);	if (bootEntry && bootEntry->skip) {
2660	fclose(grubConf);	config->defaultImage--;
2661	return 0;	}
2662		}
2663	}	}
2664
2665	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2666	FILE * grubConf;	{
2667	char * line = NULL;	struct singleEntry *entry, *entry2;
2668	size_t res = 0, len = 0;	int j;
2669	char * lastParamPtr = NULL;
2670	char * secLastParamPtr = NULL;	if (config->fallbackImage == -1)
2671	char installDeviceNumber = '\0';	return;
2672	char * bounds = NULL;
2673		entry = findEntryByIndex(config, config->fallbackImage);
2674	if (!path) return 1;	if (!entry || entry->skip) {
2675	if (!devicePtr) return 1;	config->fallbackImage = -1;
2676		return;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (strncmp(line, "setup", 5))
	continue;
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2677	}	}
2678
2679	lastParamPtr = bounds = line + res;	if (hasNew)
2680		config->fallbackImage++;
2681
2682		/* count the number of entries erased before this one */
2683		for (j = 0; j < config->fallbackImage; j++) {
2684		entry2 = findEntryByIndex(config, j);
2685		if (entry2->skip)
2686		config->fallbackImage--;
2687		}
2688		}
2689
2690	/* Last parameter in grub may be an optional IMAGE_DEVICE */	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2691	while (!isspace(*lastParamPtr))	{
2692	lastParamPtr--;	struct singleLine *line;
2693	lastParamPtr++;	char *root = NULL;
2694		int i;
2695		int j;
2696
2697	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2698
2699	if (lastParamPtr + 3 > bounds) {	line =
2700	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2701	fclose(grubConf);	entry->lines);
2702	free(line);	if (!line) {
2703	return 1;	printf("non linux entry\n");
2704		return;
2705	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2706
2707	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2708	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2709	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2710	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2711	while (!isspace(*secLastParamPtr))
2712	secLastParamPtr--;	if (line->numElements >= 3) {
2713	secLastParamPtr++;	printf("args=\"");
2714		i = 2;
2715	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2716	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2717	fclose(grubConf);	root = line->elements[i].item + 5;
2718	free(line);	} else {
2719	return 1;	printf("%s%s", line->elements[i].item,
2720	}	line->elements[i].indent);
2721	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2722	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2723	secLastParamPtr += 3;	i++;
2724	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2725	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
2726	} else {	} else {
2727	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2728		if (line) {
2729		char *s;
2730
2731		printf("args=\"");
2732		i = 1;
2733		while (i < line->numElements) {
2734		if (!strncmp
2735		(line->elements[i].item, "root=", 5)) {
2736		root = line->elements[i].item + 5;
2737		} else {
2738		s = line->elements[i].item;
2739
2740		printf("%s%s", s,
2741		line->elements[i].indent);
2742		}
2743
2744		i++;
2745		}
2746
2747		s = line->elements[i - 1].indent;
2748		printf("\"\n");
2749		}
2750	}	}
2751
2752	*devicePtr = malloc(6);	if (!root) {
2753	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2754	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2755	fclose(grubConf);	root = line->elements[1].item;
2756	free(line);	}
	return 0;
	}
2757
2758	free(line);	if (root) {
2759	fclose(grubConf);	char *s = alloca(strlen(root) + 1);
	return 1;
	}
	int grubGetBootFromDeviceMap(const char * device,
	char ** bootPtr) {
	FILE * deviceMap;
	char * line = NULL;
	size_t res = 0, len = 0;
	char * devicePtr;
	char * bounds = NULL;
	const char * path;
	const static char default_path[] = "/boot/grub/device.map";
	if (!device) return 1;
	if (!bootPtr) return 1;
	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
	path = default_path;
	dbgPrintf("opening grub device.map file from: %s\n", path);
	deviceMap = fopen(path, "r");
	if (!deviceMap)
	return 1;
2760
2761	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2762	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2763	continue;	s[strlen(s) - 1] = '\0';
2764		/* make sure the root doesn't have a trailing " */
2765	if (line[res - 1] == '\n')	printf("root=%s\n", s);
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2766	}	}
2767
2768	devicePtr = line;	line =
2769	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2770		entry->lines);
2771
2772	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2773	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2774	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2775		else
2776		printf("initrd=%s", prefix);
2777
2778	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2779	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2780	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2781	devicePtr++;	printf("\n");
2782		}
2783
2784	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2785	break;	if (line) {
2786		printf("title=%s\n", line->elements[1].item);
2787		} else {
2788		char *title;
2789		line = getLineByType(LT_MENUENTRY, entry->lines);
2790		if (line) {
2791		title = grub2ExtractTitle(line);
2792		if (title)
2793		printf("title=%s\n", title);
2794		}
2795	}	}
	}
2796
2797	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2798	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2799	return 0;	if (!strncmp
2800		(prefix, line->elements[1].item, strlen(prefix)))
2801		printf("mbmodule%d=", j);
2802		else
2803		printf("mbmodule%d=%s", j, prefix);
2804
2805		for (i = 1; i < line->numElements; i++)
2806		printf("%s%s", line->elements[i].item,
2807		line->elements[i].indent);
2808		printf("\n");
2809		j++;
2810		}
2811		}
2812	}	}
2813
2814	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2815	char * grubDevice;	{
2816		const char *path;
2817		const static char default_path[] = "/etc/SuSE-release";
2818
2819	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2820	dbgPrintf("error looking for grub installation device\n");	path = default_path;
	else
	dbgPrintf("grubby installation device: %s\n", grubDevice);
	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
	dbgPrintf("error looking for grub boot device\n");
	else
	dbgPrintf("grubby boot device: %s\n", *bootPtr);
2821
2822	free(grubDevice);	if (!access(path, R_OK))
2823	return 0;	return 1;
2824		return 0;
2825	}	}
2826
2827	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2828	/*	{
2829	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2830	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2831	* grub on that system.	size_t len = 0, res = 0;
2832	*/
2833	const char * path;	grubConf = fopen(path, "r");
2834	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2835		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2836	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2837	path = default_path;	return 0;
2838		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2839
2840	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2841	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2842	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2843	}	free(line);
2844		return 1;
2845		}
2846		}
2847
2848	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2849		path);
2850
2851		fclose(grubConf);
2852		free(line);
2853		return 0;
2854	}	}
2855
2856	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2857	FILE * in;	{
2858	char buf[1024];	FILE *grubConf;
2859	char * chptr;	char *line = NULL;
2860	char * start;	size_t res = 0, len = 0;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
2861
2862	fclose(in);	if (!path)
2863		return 1;
2864		if (!lbaPtr)
2865		return 1;
2866
2867	return 0;	grubConf = fopen(path, "r");
2868	}	if (!grubConf)
2869		return 1;
2870
2871		while ((res = getline(&line, &len, grubConf)) != -1) {
2872		if (line[res - 1] == '\n')
2873		line[res - 1] = '\0';
2874		else if (len > res)
2875		line[res] = '\0';
2876		else {
2877		line = realloc(line, res + 1);
2878		line[res] = '\0';
2879		}
2880
2881	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2882	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2883	int lba;	*lbaPtr = 1;
2884		} else {
2885	if (isSuseSystem()) {	*lbaPtr = 0;
2886	if (parseSuseGrubConf(&lba, &boot)) {	}
2887	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2888	return;	break;
2889	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2890	}	}
	}
2891
2892	if (lba) printf("lba\n");	free(line);
2893	if (boot) {	fclose(grubConf);
2894	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2895	}	}
2896
2897	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2898	const char * prefix) {	{
2899	int i = 0;	FILE *grubConf;
2900	struct singleEntry * entry;	char *line = NULL;
2901	struct singleLine * line;	size_t res = 0, len = 0;
2902		char *lastParamPtr = NULL;
2903	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2904	if (!entry) {	char installDeviceNumber = '\0';
2905	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
2906
2907	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (!path)
2908	be a better way */	return 1;
2909	if (config->cfi == &grubConfigType) {	if (!devicePtr)
2910	dumpSysconfigGrub();	return 1;
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2911
2912	line = getLineByType(LT_LBA, config->theLines);	grubConf = fopen(path, "r");
2913	if (line) printf("lba\n");	if (!grubConf)
2914	}	return 1;
2915
2916	displayEntry(entry, prefix, i);	while ((res = getline(&line, &len, grubConf)) != -1) {
2917		if (strncmp(line, "setup", 5))
2918		continue;
2919
2920		if (line[res - 1] == '\n')
2921		line[res - 1] = '\0';
2922		else if (len > res)
2923		line[res] = '\0';
2924		else {
2925		line = realloc(line, res + 1);
2926		line[res] = '\0';
2927		}
2928
2929	i++;	lastParamPtr = bounds = line + res;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
2930
2931	return 0;	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2932	}	while (!isspace(*lastParamPtr))
2933		lastParamPtr--;
2934		lastParamPtr++;
2935
2936		secLastParamPtr = lastParamPtr - 2;
2937		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2938
2939		if (lastParamPtr + 3 > bounds) {
2940		dbgPrintf("lastParamPtr going over boundary");
2941		fclose(grubConf);
2942		free(line);
2943		return 1;
2944		}
2945		if (!strncmp(lastParamPtr, "(hd", 3))
2946		lastParamPtr += 3;
2947		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2948
2949		/*
2950		* Second last parameter will decide wether last parameter is
2951		* an IMAGE_DEVICE or INSTALL_DEVICE
2952		*/
2953		while (!isspace(*secLastParamPtr))
2954		secLastParamPtr--;
2955		secLastParamPtr++;
2956
2957		if (secLastParamPtr + 3 > bounds) {
2958		dbgPrintf("secLastParamPtr going over boundary");
2959		fclose(grubConf);
2960		free(line);
2961		return 1;
2962		}
2963		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2964		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2965		secLastParamPtr += 3;
2966		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2967		installDeviceNumber = *secLastParamPtr;
2968		} else {
2969		installDeviceNumber = *lastParamPtr;
2970		}
2971
2972	struct singleLine * addLineTmpl(struct singleEntry * entry,	*devicePtr = malloc(6);
2973	struct singleLine * tmplLine,	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2974	struct singleLine * prevLine,	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2975	const char * val,	fclose(grubConf);
2976	struct configFileInfo * cfi)	free(line);
2977	{	return 0;
	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);
	}
2978	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
	if (!entry->lines) {
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2979
2980	return newLine;	free(line);
2981		fclose(grubConf);
2982		return 1;
2983	}	}
2984
2985	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2986	struct singleLine *  addLine(struct singleEntry * entry,	{
2987	struct configFileInfo * cfi,	FILE *deviceMap;
2988	enum lineType_e type, char * defaultIndent,	char *line = NULL;
2989	const char * val) {	size_t res = 0, len = 0;
2990	struct singleLine * line, * prev;	char *devicePtr;
2991	struct keywordTypes * kw;	char *bounds = NULL;
2992	struct singleLine tmpl;	const char *path;
2993		const static char default_path[] = "/boot/grub/device.map";
	/* 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 = "";
	}
	}
2994
2995	/* The last non-empty line gives us the indention to us and the line	if (!device)
2996	to insert after. Note that comments are considered empty lines, which	return 1;
2997	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
2998	first line, we use defaultIndent (the first line is normally indented	return 1;
	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;
	}
2999
3000	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3001	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	path = default_path;
	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;
	}
3002
3003	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
3004	}	deviceMap = fopen(path, "r");
3005		if (!deviceMap)
3006		return 1;
3007
3008	void removeLine(struct singleEntry * entry, struct singleLine * line) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
3009	struct singleLine * prev;	if (!strncmp(line, "#", 1))
3010	int i;	continue;
3011
3012		if (line[res - 1] == '\n')
3013		line[res - 1] = '\0';
3014		else if (len > res)
3015		line[res] = '\0';
3016		else {
3017		line = realloc(line, res + 1);
3018		line[res] = '\0';
3019		}
3020
3021	for (i = 0; i < line->numElements; i++) {	devicePtr = line;
3022	free(line->elements[i].item);	bounds = line + res;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
3023
3024	if (line == entry->lines) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3025	entry->lines = line->next;	devicePtr++;
3026	} else {	dbgPrintf("device: %s\n", devicePtr);
3027	prev = entry->lines;
3028	while (prev->next != line) prev = prev->next;	if (!strncmp(devicePtr, device, strlen(device))) {
3029	prev->next = line->next;	devicePtr += strlen(device);
3030	}	while (isspace(*devicePtr)
3031		&& ((devicePtr + 1) <= bounds))
3032		devicePtr++;
3033
3034	free(line);	*bootPtr = strdup(devicePtr);
3035		break;
3036		}
3037		}
3038
3039		free(line);
3040		fclose(deviceMap);
3041		return 0;
3042	}	}
3043
3044	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3045	{	{
3046	struct singleLine newLine = {	char *grubDevice;
	.indent = tmplLine->indent,
	.type = tmplLine->type,
	.next = tmplLine->next,
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
	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] = ' ';
	}
3047
3048	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3049	/* move the end-of-line forward */	dbgPrintf("error looking for grub installation device\n");
3050	line->elements[insertHere].indent =	else
3051	line->elements[insertHere-1].indent;	dbgPrintf("grubby installation device: %s\n", grubDevice);
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
3052
3053	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3054		dbgPrintf("error looking for grub boot device\n");
3055		else
3056		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3057
3058	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3059	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3060	}	}
3061
3062	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3063	int i;	{
3064		/*
3065	/* sanity check */	* This SuSE grub configuration file at this location is not your
3066	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3067		* used to setup grub on that system.
3068	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3069	removeHere, line->elements[removeHere].item);	const char *path;
3070		const static char default_path[] = "/etc/grub.conf";
3071
3072	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3073		path = default_path;
3074
3075	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3076	/* previous argument gets this argument's post-indentation */	return 1;
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
3077
3078	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3079	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3080	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3081		return 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;
3082	}	}
	}
3083
3084	if (!removeArgs) {	if (bootPtr) {
3085	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3086	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3087	}	}
	}
3088
3089		return 0;
3090		}
3091
3092	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3093	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	{
3094		FILE *in;
3095		char buf[1024];
3096		char *chptr;
3097		char *start;
3098		char *param;
3099
3100	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	in = fopen("/etc/sysconfig/grub", "r");
3101	&& !multibootArgs);	if (!in)
3102		return 1;
3103
3104	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	if (lbaPtr)
3105		*lbaPtr = 0;
3106		if (bootPtr)
3107		*bootPtr = NULL;
3108
3109		while (fgets(buf, sizeof(buf), in)) {
3110		start = buf;
3111		while (isspace(*start))
3112		start++;
3113		if (*start == '#')
3114		continue;
3115
3116		chptr = strchr(start, '=');
3117		if (!chptr)
3118		continue;
3119		chptr--;
3120		while (*chptr && isspace(*chptr))
3121		chptr--;
3122		chptr++;
3123		*chptr = '\0';
3124
3125		param = chptr + 1;
3126		while (*param && isspace(*param))
3127		param++;
3128		if (*param == '=') {
3129		param++;
3130		while (*param && isspace(*param))
3131		param++;
3132		}
3133
3134	if (multibootArgs && !entry->multiboot)	chptr = param;
3135	continue;	while (*chptr && !isspace(*chptr))
3136		chptr++;
3137		*chptr = '\0';
3138
3139		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3140		*lbaPtr = 1;
3141		else if (!strcmp(start, "boot") && bootPtr)
3142		*bootPtr = strdup(param);
3143		}
3144
3145	/* Determine where to put the args.  If this config supports	fclose(in);
	* LT_KERNELARGS, use that.  Otherwise use
	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
	*/
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
3146
3147		return 0;
3148		}
3149
3150		void dumpSysconfigGrub(void)
3151		{
3152		char *boot = NULL;
3153		int lba;
3154
3155		if (isSuseSystem()) {
3156		if (parseSuseGrubConf(&lba, &boot)) {
3157		free(boot);
3158		return;
3159		}
3160	} else {	} else {
3161	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);	if (parseSysconfigGrub(&lba, &boot)) {
3162	if (!line) {	free(boot);
3163	/* no LT_KERNEL or LT_MBMODULE in this entry? */	return;
3164	continue;	}
	}
	firstElement = 2;
3165	}	}
3166
3167	/* handle the elilo case which does:	if (lba)
3168	*   append="hypervisor args -- kernel args"	printf("lba\n");
3169	*/	if (boot) {
3170	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	printf("boot=%s\n", boot);
3171	/* this is a multiboot entry, make sure there's	free(boot);
3172	* -- on the args line	}
3173	*/	}
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
3174
3175	if (i < line->numElements && doreplace) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3176	/* direct replacement */	{
3177	free(line->elements[i].item);	int i = 0;
3178	line->elements[i].item = strdup(*arg);	struct singleEntry *entry;
3179		struct singleLine *line;
3180
3181		entry = findEntryByPath(config, kernel, prefix, &i);
3182		if (!entry) {
3183		fprintf(stderr, _("grubby: kernel not found\n"));
3184		return 1;
3185		}
3186
3187	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3188	/* root= replacement */	be a better way */
3189	rootLine = getLineByType(LT_ROOT, entry->lines);	if (config->cfi == &grubConfigType) {
3190	if (rootLine) {	dumpSysconfigGrub();
3191	free(rootLine->elements[1].item);	} else {
3192	rootLine->elements[1].item = strdup(*arg + 5);	line = getLineByType(LT_BOOT, config->theLines);
3193	} else {	if (line && line->numElements >= 1) {
3194	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	printf("boot=%s\n", line->elements[1].item);
	cfg->secondaryIndent, *arg + 5);
3195	}	}
	}
3196
3197	else {	line = getLineByType(LT_LBA, config->theLines);
3198	/* insert/append */	if (line)
3199	insertElement(line, *arg, i, cfg->cfi);	printf("lba\n");
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
3200	}	}
	}
3201
3202	free(newArgs);	displayEntry(entry, prefix, i);
	free(oldArgs);
3203
3204	return 0;	i++;
3205		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3206		displayEntry(entry, prefix, i);
3207		i++;
3208		}
3209
3210		return 0;
3211	}	}
3212
3213	int updateImage(struct grubConfig * cfg, const char * image,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3214	const char * prefix, const char * addArgs,	struct singleLine *tmplLine,
3215	const char * removeArgs,	struct singleLine *prevLine,
3216	const char * addMBArgs, const char * removeMBArgs) {	const char *val, struct configFileInfo *cfi)
3217	int rc = 0;	{
3218		struct singleLine *newLine = lineDup(tmplLine);
3219	if (!image) return rc;
3220		if (isEfi && cfi == &grub2ConfigType) {
3221	/* update the main args first... */	enum lineType_e old = newLine->type;
3222	if (addArgs || removeArgs)	newLine->type = preferredLineType(newLine->type, cfi);
3223	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (old != newLine->type)
3224	if (rc) return rc;	newLine->elements[0].item =
3225		getKeyByType(newLine->type, cfi);
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
	return 1;
3226	}	}
3227
3228	break;	if (val) {
3229	}	/* override the inherited value with our own.
3230		* This is a little weak because it only applies to elements[1]
3231		*/
3232		if (newLine->numElements > 1)
3233		removeElement(newLine, 1);
3234		insertElement(newLine, val, 1, cfi);
3235
3236		/* but try to keep the rootspec from the template... sigh */
3237		if (tmplLine->
3238		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3239		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3240		LT_INITRD_16)) {
3241		char *rootspec =
3242		getRootSpecifier(tmplLine->elements[1].item);
3243		if (rootspec != NULL) {
3244		free(newLine->elements[1].item);
3245		newLine->elements[1].item =
3246		sdupprintf("%s%s", rootspec, val);
3247		}
3248		}
3249		}
3250
3251	return 0;	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3252	}	newLine->elements[0].item : "");
3253
3254	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (!entry->lines) {
3255	int fd;	/* first one on the list */
3256	unsigned char bootSect[512];	entry->lines = newLine;
3257	int offset;	} else if (prevLine) {
3258		/* add after prevLine */
3259	fd = open(device, O_RDONLY);	newLine->next = prevLine->next;
3260	if (fd < 0) {	prevLine->next = newLine;
3261	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
3262
3263	if (read(fd, bootSect, 512) != 512) {	return newLine;
3264	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
	close(fd);
3265
3266	/* first three bytes should match, a jmp short should be in there */	/* val may be NULL */
3267	if (memcmp(boot, bootSect, 3))	struct singleLine *addLine(struct singleEntry *entry,
3268	return 0;	struct configFileInfo *cfi,
3269		enum lineType_e type, char *defaultIndent,
3270		const char *val)
3271		{
3272		struct singleLine *line, *prev;
3273		struct keywordTypes *kw;
3274		struct singleLine tmpl;
3275
3276	if (boot[1] == JMP_SHORT_OPCODE) {	/* NB: This function shouldn't allocate items on the heap, rather on
3277	offset = boot[2] + 2;	* the stack since it calls addLineTmpl which will make copies.
	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
	offset = (boot[3] << 8) + boot[2] + 2;
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
3278	*/	*/
3279	if ((bootSect[offset + 1] == NOOP_OPCODE)	if (type == LT_TITLE && cfi->titleBracketed) {
3280	&& (bootSect[offset + 2] == NOOP_OPCODE)) {	/* we're doing a bracketed title (zipl) */
3281	offset = offset + 3;	tmpl.type = type;
3282	}	tmpl.numElements = 1;
3283	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {	tmpl.elements = alloca(sizeof(*tmpl.elements));
3284	offset = (boot[2] << 8) + boot[1] + 2;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3285	} else {	sprintf(tmpl.elements[0].item, "[%s]", val);
3286	return 0;	tmpl.elements[0].indent = "";
3287	}	val = NULL;
3288		} else if (type == LT_MENUENTRY) {
3289		char *lineend = "--class gnu-linux --class gnu --class os {";
3290		if (!val) {
3291		fprintf(stderr,
3292		"Line type LT_MENUENTRY requires a value\n");
3293		abort();
3294		}
3295		kw = getKeywordByType(type, cfi);
3296		if (!kw) {
3297		fprintf(stderr,
3298		"Looking up keyword for unknown type %d\n",
3299		type);
3300		abort();
3301		}
3302		tmpl.indent = "";
3303		tmpl.type = type;
3304		tmpl.numElements = 3;
3305		tmpl.elements =
3306		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3307		tmpl.elements[0].item = kw->key;
3308		tmpl.elements[0].indent = alloca(2);
3309		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3310		tmpl.elements[1].item = (char *)val;
3311		tmpl.elements[1].indent = alloca(2);
3312		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3313		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3314		strcpy(tmpl.elements[2].item, lineend);
3315		tmpl.elements[2].indent = "";
3316		} else {
3317		kw = getKeywordByType(type, cfi);
3318		if (!kw) {
3319		fprintf(stderr,
3320		"Looking up keyword for unknown type %d\n",
3321		type);
3322		abort();
3323		}
3324		tmpl.type = type;
3325		tmpl.numElements = val ? 2 : 1;
3326		tmpl.elements =
3327		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3328		tmpl.elements[0].item = kw->key;
3329		tmpl.elements[0].indent = alloca(2);
3330		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3331		if (val) {
3332		tmpl.elements[1].item = (char *)val;
3333		tmpl.elements[1].indent = "";
3334		}
3335		}
3336
3337	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	/* The last non-empty line gives us the indention to us and the line
3338	return 0;	* to insert after. Note that comments are considered empty lines,
3339		* which may not be ideal? If there are no lines or we are looking at
3340		* the first line, we use defaultIndent (the first line is normally
3341		* indented differently from the rest) */
3342		for (line = entry->lines, prev = NULL; line; line = line->next) {
3343		if (line->numElements)
3344		prev = line;
3345		/* fall back on the last line if prev isn't otherwise set */
3346		if (!line->next && !prev)
3347		prev = line;
3348		}
3349
3350		struct singleLine *menuEntry;
3351		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3352		if (tmpl.type == LT_ENTRY_END) {
3353		if (menuEntry)
3354		tmpl.indent = menuEntry->indent;
3355		else
3356		tmpl.indent = defaultIndent ? : "";
3357		} else if (tmpl.type != LT_MENUENTRY) {
3358		if (menuEntry)
3359		tmpl.indent = "\t";
3360		else if (prev == entry->lines)
3361		tmpl.indent = defaultIndent ? : "";
3362		else
3363		tmpl.indent = prev->indent;
3364		}
3365
3366	return 2;	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3367	}	}
3368
3369	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3370	int fd;	{
3371	char buf[65536];	struct singleLine *prev;
3372	char * end;	int i;
3373	char * chptr;
3374	char * chptr2;	for (i = 0; i < line->numElements; i++) {
3375	int rc;	free(line->elements[i].item);
3376		free(line->elements[i].indent);
3377		}
3378		free(line->elements);
3379		free(line->indent);
3380
3381	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (line == entry->lines) {
3382	*raw* devices listed in there */	entry->lines = line->next;
3383		} else {
3384		prev = entry->lines;
3385		while (prev->next != line)
3386		prev = prev->next;
3387		prev->next = line->next;
3388		}
3389
3390	if (!strncmp(mdDev, "/dev/", 5))	free(line);
3391	mdDev += 5;	}
3392
3393	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3394	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	{
3395	strerror(errno));	struct singleLine newLine = {
3396	return 2;	.indent = tmplLine->indent,
3397	}	.type = tmplLine->type,
3398		.next = tmplLine->next,
3399		};
3400		int firstQuotedItem = -1;
3401		int quoteLen = 0;
3402		int j;
3403		int element = 0;
3404		char *c;
3405
3406	rc = read(fd, buf, sizeof(buf) - 1);	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3407	if (rc < 0 || rc == (sizeof(buf) - 1)) {	strcpy(c, tmplLine->elements[0].item);
3408	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	insertElement(&newLine, c, element++, cfi);
3409	strerror(errno));	free(c);
3410	close(fd);	c = NULL;
3411	return 2;
3412	}	for (j = 1; j < tmplLine->numElements; j++) {
3413	close(fd);	if (firstQuotedItem == -1) {
3414	buf[rc] = '\0';	quoteLen += strlen(tmplLine->elements[j].item);
3415
3416		if (isquote(tmplLine->elements[j].item[0])) {
3417		firstQuotedItem = j;
3418		quoteLen +=
3419		strlen(tmplLine->elements[j].indent);
3420		} else {
3421		c = malloc(quoteLen + 1);
3422		strcpy(c, tmplLine->elements[j].item);
3423		insertElement(&newLine, c, element++, cfi);
3424		free(c);
3425		quoteLen = 0;
3426		}
3427		} else {
3428		int itemlen = strlen(tmplLine->elements[j].item);
3429		quoteLen += itemlen;
3430		quoteLen += strlen(tmplLine->elements[j].indent);
3431
3432		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3433		c = malloc(quoteLen + 1);
3434		c[0] = '\0';
3435		for (int i = firstQuotedItem; i < j + 1; i++) {
3436		strcat(c, tmplLine->elements[i].item);
3437		strcat(c, tmplLine->elements[i].indent);
3438		}
3439		insertElement(&newLine, c, element++, cfi);
3440		free(c);
3441
3442	chptr = buf;	firstQuotedItem = -1;
3443	while (*chptr) {	quoteLen = 0;
3444	end = strchr(chptr, '\n');	}
3445	if (!end) break;	}
3446	*end = '\0';	}
3447		while (tmplLine->numElements)
3448		removeElement(tmplLine, 0);
3449		if (tmplLine->elements)
3450		free(tmplLine->elements);
3451
3452		tmplLine->numElements = newLine.numElements;
3453		tmplLine->elements = newLine.elements;
3454		}
3455
3456	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	static void insertElement(struct singleLine *line,
3457	chptr[strlen(mdDev)] == ' ') {	const char *item, int insertHere,
3458		struct configFileInfo *cfi)
3459		{
3460		struct keywordTypes *kw;
3461		char indent[2] = "";
3462
3463	/* found the device */	/* sanity check */
3464	while (*chptr && *chptr != ':') chptr++;	if (insertHere > line->numElements) {
3465	chptr++;	dbgPrintf
3466	while (*chptr && isspace(*chptr)) chptr++;	("insertElement() adjusting insertHere from %d to %d\n",
3467		insertHere, line->numElements);
3468	/* skip the "active" bit */	insertHere = line->numElements;
3469	while (*chptr && !isspace(*chptr)) chptr++;	}
3470	while (*chptr && isspace(*chptr)) chptr++;
3471		line->elements = realloc(line->elements, (line->numElements + 1) *
3472	/* skip the raid level */	sizeof(*line->elements));
3473	while (*chptr && !isspace(*chptr)) chptr++;	memmove(&line->elements[insertHere + 1],
3474	while (*chptr && isspace(*chptr)) chptr++;	&line->elements[insertHere],
3475		(line->numElements - insertHere) * sizeof(*line->elements));
3476	/* everything else is partition stuff */	line->elements[insertHere].item = strdup(item);
3477	while (*chptr) {
3478	chptr2 = chptr;	kw = getKeywordByType(line->type, cfi);
3479	while (*chptr2 && *chptr2 != '[') chptr2++;
3480	if (!*chptr2) break;	if (line->numElements == 0) {
3481		indent[0] = '\0';
3482	/* yank off the numbers at the end */	} else if (insertHere == 0) {
3483	chptr2--;	indent[0] = kw->nextChar;
3484	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	} else if (kw->separatorChar != '\0') {
3485	chptr2++;	indent[0] = kw->separatorChar;
3486	*chptr2 = '\0';	} else {
3487		indent[0] = ' ';
3488	/* Better, now we need the /dev/ back. We're done with	}
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3489
3490	/*  we're good to go */	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3491	return 2;	/* move the end-of-line forward */
3492		line->elements[insertHere].indent =
3493		line->elements[insertHere - 1].indent;
3494		line->elements[insertHere - 1].indent = strdup(indent);
3495		} else {
3496		line->elements[insertHere].indent = strdup(indent);
3497	}	}
3498
3499	chptr = end + 1;	line->numElements++;
	}
3500
3501	fprintf(stderr,	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3502	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	line->elements[0].item,
3503	mdDev);	line->elements[insertHere].item,
3504	return 0;	line->elements[insertHere].indent, insertHere);
3505	}	}
3506
3507	int checkForLilo(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3508	int fd;	{
3509	unsigned char boot[512];	int i;
	struct singleLine * line;
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3510
3511	if (line->numElements != 2) return 1;	/* sanity check */
3512		if (removeHere >= line->numElements)
3513		return;
3514
3515		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3516		removeHere, line->elements[removeHere].item);
3517
3518		free(line->elements[removeHere].item);
3519
3520		if (removeHere > 1) {
3521		/* previous argument gets this argument's post-indentation */
3522		free(line->elements[removeHere - 1].indent);
3523		line->elements[removeHere - 1].indent =
3524		line->elements[removeHere].indent;
3525		} else {
3526		free(line->elements[removeHere].indent);
3527		}
3528
3529	fd = open("/boot/boot.b", O_RDONLY);	/* now collapse the array, but don't bother to realloc smaller */
3530	if (fd < 0) {	for (i = removeHere; i < line->numElements - 1; i++)
3531	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	line->elements[i] = line->elements[i + 1];
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3532
3533	if (read(fd, boot, 512) != 512) {	line->numElements--;
3534	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
3535	"/boot/boot.b", strerror(errno));
3536	return 1;	int argMatch(const char *one, const char *two)
3537	}	{
3538	close(fd);	char *first, *second;
3539		char *chptr;
3540
3541	if (!strncmp("/dev/md", line->elements[1].item, 7))	first = strcpy(alloca(strlen(one) + 1), one);
3542	return checkLiloOnRaid(line->elements[1].item, boot);	second = strcpy(alloca(strlen(two) + 1), two);
3543
3544	return checkDeviceBootloader(line->elements[1].item, boot);	chptr = strchr(first, '=');
3545		if (chptr)
3546		*chptr = '\0';
3547
3548		chptr = strchr(second, '=');
3549		if (chptr)
3550		*chptr = '\0';
3551
3552		return strcmp(first, second);
3553	}	}
3554
3555	int checkForGrub2(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3556	if (!access("/etc/grub.d/", R_OK))	const char *prefix, const char *addArgs,
3557	return 2;	const char *removeArgs, int multibootArgs)
3558		{
3559		struct singleEntry *entry;
3560		struct singleLine *line, *rootLine;
3561		int index = 0;
3562		int i, k;
3563		const char **newArgs, **oldArgs;
3564		const char **arg;
3565		int useKernelArgs, useRoot;
3566		int firstElement;
3567		int *usedElements;
3568		int doreplace;
3569
3570		if (!image)
3571		return 0;
3572
3573		if (!addArgs) {
3574		newArgs = malloc(sizeof(*newArgs));
3575		*newArgs = NULL;
3576		} else {
3577		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3578		fprintf(stderr,
3579		_("grubby: error separating arguments '%s'\n"),
3580		addArgs);
3581		return 1;
3582		}
3583		}
3584
3585		if (!removeArgs) {
3586		oldArgs = malloc(sizeof(*oldArgs));
3587		*oldArgs = NULL;
3588		} else {
3589		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3590		fprintf(stderr,
3591		_("grubby: error separating arguments '%s'\n"),
3592		removeArgs);
3593		free(newArgs);
3594		return 1;
3595		}
3596		}
3597
3598		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3599		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3600
3601		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3602		&& !multibootArgs);
3603
3604		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3605
3606		if (multibootArgs && !entry->multiboot)
3607		continue;
3608
3609		/* Determine where to put the args.  If this config supports
3610		* LT_KERNELARGS, use that.  Otherwise use
3611		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3612		*/
3613		if (useKernelArgs) {
3614		line = getLineByType(LT_KERNELARGS, entry->lines);
3615		if (!line) {
3616		/* no LT_KERNELARGS, need to add it */
3617		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3618		cfg->secondaryIndent, NULL);
3619		}
3620		firstElement = 1;
3621
3622		} else if (multibootArgs) {
3623		line = getLineByType(LT_HYPER, entry->lines);
3624		if (!line) {
3625		/* a multiboot entry without LT_HYPER? */
3626		continue;
3627		}
3628		firstElement = 2;
3629
3630		} else {
3631		line =
3632		getLineByType(LT_KERNEL | LT_MBMODULE |
3633		LT_KERNEL_EFI | LT_KERNEL_16,
3634		entry->lines);
3635		if (!line) {
3636		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3637		continue;
3638		}
3639		firstElement = 2;
3640		}
3641
3642		/* handle the elilo case which does:
3643		*   append="hypervisor args -- kernel args"
3644		*/
3645		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3646		/* this is a multiboot entry, make sure there's
3647		* -- on the args line
3648		*/
3649		for (i = firstElement; i < line->numElements; i++) {
3650		if (!strcmp(line->elements[i].item, "--"))
3651		break;
3652		}
3653		if (i == line->numElements) {
3654		/* assume all existing args are kernel args,
3655		* prepend -- to make it official
3656		*/
3657		insertElement(line, "--", firstElement,
3658		cfg->cfi);
3659		i = firstElement;
3660		}
3661		if (!multibootArgs) {
3662		/* kernel args start after the -- */
3663		firstElement = i + 1;
3664		}
3665		} else if (cfg->cfi->mbConcatArgs) {
3666		/* this is a non-multiboot entry, remove hyper args */
3667		for (i = firstElement; i < line->numElements; i++) {
3668		if (!strcmp(line->elements[i].item, "--"))
3669		break;
3670		}
3671		if (i < line->numElements) {
3672		/* remove args up to -- */
3673		while (strcmp
3674		(line->elements[firstElement].item,
3675		"--"))
3676		removeElement(line, firstElement);
3677		/* remove -- */
3678		removeElement(line, firstElement);
3679		}
3680		}
3681
3682		usedElements = calloc(line->numElements, sizeof(*usedElements));
3683
3684	return 1;	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3685
3686		doreplace = 1;
3687		for (i = firstElement; i < line->numElements; i++) {
3688		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3689		!strcmp(line->elements[i].item, "--")) {
3690		/* reached the end of hyper args, insert here */
3691		doreplace = 0;
3692		break;
3693		}
3694		if (usedElements[i])
3695		continue;
3696		if (!argMatch(line->elements[i].item, *arg)) {
3697		usedElements[i] = 1;
3698		break;
3699		}
3700		}
3701
3702		if (i < line->numElements && doreplace) {
3703		/* direct replacement */
3704		free(line->elements[i].item);
3705		line->elements[i].item = strdup(*arg);
3706
3707		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3708		/* root= replacement */
3709		rootLine = getLineByType(LT_ROOT, entry->lines);
3710		if (rootLine) {
3711		free(rootLine->elements[1].item);
3712		rootLine->elements[1].item =
3713		strdup(*arg + 5);
3714		} else {
3715		rootLine =
3716		addLine(entry, cfg->cfi, LT_ROOT,
3717		cfg->secondaryIndent,
3718		*arg + 5);
3719		}
3720		}
3721
3722		else {
3723		/* insert/append */
3724		insertElement(line, *arg, i, cfg->cfi);
3725		usedElements =
3726		realloc(usedElements,
3727		line->numElements *
3728		sizeof(*usedElements));
3729		memmove(&usedElements[i + 1], &usedElements[i],
3730		line->numElements - i - 1);
3731		usedElements[i] = 1;
3732
3733		/* if we updated a root= here even though
3734		* there is a LT_ROOT available we need to
3735		* remove the LT_ROOT entry (this will happen
3736		* if we switch from a device to a label) */
3737		if (useRoot && !strncmp(*arg, "root=", 5)) {
3738		rootLine =
3739		getLineByType(LT_ROOT,
3740		entry->lines);
3741		if (rootLine)
3742		removeLine(entry, rootLine);
3743		}
3744		}
3745		}
3746
3747		free(usedElements);
3748
3749		for (arg = oldArgs; *arg; arg++) {
3750		for (i = firstElement; i < line->numElements; i++) {
3751		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3752		!strcmp(line->elements[i].item, "--"))
3753		/* reached the end of hyper args, stop here */
3754		break;
3755		if (!argMatch(line->elements[i].item, *arg)) {
3756		removeElement(line, i);
3757		break;
3758		}
3759		}
3760		/* handle removing LT_ROOT line too */
3761		if (useRoot && !strncmp(*arg, "root=", 5)) {
3762		rootLine = getLineByType(LT_ROOT, entry->lines);
3763		if (rootLine)
3764		removeLine(entry, rootLine);
3765		}
3766		}
3767
3768		if (line->numElements == 1) {
3769		/* don't need the line at all (note it has to be a
3770		LT_KERNELARGS for this to happen */
3771		removeLine(entry, line);
3772		}
3773		}
3774
3775		free(newArgs);
3776		free(oldArgs);
3777
3778		return 0;
3779	}	}
3780
3781	int checkForGrub(struct grubConfig * config) {	int updateImage(struct grubConfig *cfg, const char *image,
3782	int fd;	const char *prefix, const char *addArgs,
3783	unsigned char bootSect[512];	const char *removeArgs,
3784	char * boot;	const char *addMBArgs, const char *removeMBArgs)
3785	int onSuse = isSuseSystem();	{
3786		int rc = 0;
3787
3788		if (!image)
3789		return rc;
3790
3791	if (onSuse) {	/* update the main args first... */
3792	if (parseSuseGrubConf(NULL, &boot))	if (addArgs || removeArgs)
3793	return 0;	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3794	} else {	0);
3795	if (parseSysconfigGrub(NULL, &boot))	if (rc)
3796	return 0;	return rc;
3797	}
3798		/* and now any multiboot args */
3799		if (addMBArgs || removeMBArgs)
3800		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3801		removeMBArgs, 1);
3802		return rc;
3803		}
3804
3805		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3806		const char *image, const char *prefix, const char *initrd,
3807		const char *title)
3808		{
3809		struct singleEntry *entry;
3810		struct singleLine *line, *kernelLine, *endLine = NULL;
3811		int index = 0;
3812
3813		if (!image)
3814		return 0;
3815
3816		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3817		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3818		if (!kernelLine)
3819		continue;
3820
3821		/* if title is supplied, the entry's title must match it. */
3822		if (title) {
3823		char *linetitle;
3824
3825		line =
3826		getLineByType(LT_TITLE | LT_MENUENTRY,
3827		entry->lines);
3828		if (!line)
3829		continue;
3830
3831		linetitle = extractTitle(cfg, line);
3832		if (!linetitle)
3833		continue;
3834		if (strcmp(title, linetitle)) {
3835		free(linetitle);
3836		continue;
3837		}
3838		free(linetitle);
3839		}
3840
3841		if (prefix) {
3842		int prefixLen = strlen(prefix);
3843		if (!strncmp(initrd, prefix, prefixLen))
3844		initrd += prefixLen;
3845		}
3846		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3847		if (endLine)
3848		removeLine(entry, endLine);
3849		line =
3850		addLine(entry, cfg->cfi,
3851		preferredLineType(LT_MBMODULE, cfg->cfi),
3852		kernelLine->indent, initrd);
3853		if (!line)
3854		return 1;
3855		if (endLine) {
3856		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3857		if (!line)
3858		return 1;
3859		}
3860
3861		break;
3862		}
3863
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3864	return 0;	return 0;
3865		}
3866
3867		int updateInitrd(struct grubConfig *cfg, const char *image,
3868		const char *prefix, const char *initrd, const char *title)
3869		{
3870		struct singleEntry *entry;
3871		struct singleLine *line, *kernelLine, *endLine = NULL;
3872		int index = 0;
3873
3874		if (!image)
3875		return 0;
3876
3877		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3878		kernelLine =
3879		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3880		entry->lines);
3881		if (!kernelLine)
3882		continue;
3883
3884		/* if title is supplied, the entry's title must match it. */
3885		if (title) {
3886		char *linetitle;
3887
3888		line =
3889		getLineByType(LT_TITLE | LT_MENUENTRY,
3890		entry->lines);
3891		if (!line)
3892		continue;
3893
3894		linetitle = extractTitle(cfg, line);
3895		if (!linetitle)
3896		continue;
3897		if (strcmp(title, linetitle)) {
3898		free(linetitle);
3899		continue;
3900		}
3901		free(linetitle);
3902		}
3903
3904		line =
3905		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3906		entry->lines);
3907		if (line)
3908		removeLine(entry, line);
3909		if (prefix) {
3910		int prefixLen = strlen(prefix);
3911		if (!strncmp(initrd, prefix, prefixLen))
3912		initrd += prefixLen;
3913		}
3914		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3915		if (endLine)
3916		removeLine(entry, endLine);
3917		enum lineType_e lt;
3918		switch (kernelLine->type) {
3919		case LT_KERNEL:
3920		lt = LT_INITRD;
3921		break;
3922		case LT_KERNEL_EFI:
3923		lt = LT_INITRD_EFI;
3924		break;
3925		case LT_KERNEL_16:
3926		lt = LT_INITRD_16;
3927		break;
3928		default:
3929		lt = preferredLineType(LT_INITRD, cfg->cfi);
3930		}
3931		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3932		if (!line)
3933		return 1;
3934		if (endLine) {
3935		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3936		if (!line)
3937		return 1;
3938		}
3939
3940		break;
3941		}
3942
	fd = open("/boot/grub/stage1", O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3943	return 0;	return 0;
3944		}
3945
3946	if (read(fd, bootSect, 512) != 512) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3947	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3948	"/boot/grub/stage1", strerror(errno));	int fd;
3949	close(fd);	unsigned char bootSect[512];
3950	return 1;	int offset;
3951	}
3952	close(fd);	fd = open(device, O_RDONLY);
3953		if (fd < 0) {
3954		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3955		device, strerror(errno));
3956		return 1;
3957		}
3958
3959	/* The more elaborate checks do not work on SuSE. The checks done	if (read(fd, bootSect, 512) != 512) {
3960	* seem to be reasonble (at least for now), so just return success	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3961	*/	device, strerror(errno));
3962	if (onSuse)	return 1;
3963	return 2;	}
3964		close(fd);
3965
3966	return checkDeviceBootloader(boot, bootSect);	/* first three bytes should match, a jmp short should be in there */
3967		if (memcmp(boot, bootSect, 3))
3968		return 0;
3969
3970		if (boot[1] == JMP_SHORT_OPCODE) {
3971		offset = boot[2] + 2;
3972		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3973		offset = (boot[3] << 8) + boot[2] + 2;
3974		} else if (boot[0] == JMP_SHORT_OPCODE) {
3975		offset = boot[1] + 2;
3976		/*
3977		* it looks like grub, when copying stage1 into the mbr,
3978		* patches stage1 right after the JMP location, replacing
3979		* other instructions such as JMPs for NOOPs. So, relax the
3980		* check a little bit by skipping those different bytes.
3981		*/
3982		if ((bootSect[offset + 1] == NOOP_OPCODE)
3983		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3984		offset = offset + 3;
3985		}
3986		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3987		offset = (boot[2] << 8) + boot[1] + 2;
3988		} else {
3989		return 0;
3990		}
3991
3992		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3993		return 0;
3994
3995		return 2;
3996	}	}
3997
3998	int checkForExtLinux(struct grubConfig * config) {	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3999	int fd;	{
4000	unsigned char bootSect[512];	int fd;
4001	char * boot;	char buf[65536];
4002	char executable[] = "/boot/extlinux/extlinux";	char *end;
4003		char *chptr;
4004		char *chptr2;
4005		int rc;
4006
4007		/* it's on raid; we need to parse /proc/mdstat and check all of the
4008		*raw* devices listed in there */
4009
4010		if (!strncmp(mdDev, "/dev/", 5))
4011		mdDev += 5;
4012
4013		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4014		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4015		strerror(errno));
4016		return 2;
4017		}
4018
4019		rc = read(fd, buf, sizeof(buf) - 1);
4020		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4021		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4022		strerror(errno));
4023		close(fd);
4024		return 2;
4025		}
4026		close(fd);
4027		buf[rc] = '\0';
4028
4029	printf("entered: checkForExtLinux()\n");	chptr = buf;
4030		while (*chptr) {
4031		end = strchr(chptr, '\n');
4032		if (!end)
4033		break;
4034		*end = '\0';
4035
4036	if (parseSysconfigGrub(NULL, &boot))	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4037	return 0;	chptr[strlen(mdDev)] == ' ') {
4038
4039	/* assume grub is not installed -- not an error condition */	/* found the device */
4040	if (!boot)	while (*chptr && *chptr != ':')
4041	return 0;	chptr++;
4042		chptr++;
4043		while (*chptr && isspace(*chptr))
4044		chptr++;
4045
4046		/* skip the "active" bit */
4047		while (*chptr && !isspace(*chptr))
4048		chptr++;
4049		while (*chptr && isspace(*chptr))
4050		chptr++;
4051
4052		/* skip the raid level */
4053		while (*chptr && !isspace(*chptr))
4054		chptr++;
4055		while (*chptr && isspace(*chptr))
4056		chptr++;
4057
4058		/* everything else is partition stuff */
4059		while (*chptr) {
4060		chptr2 = chptr;
4061		while (*chptr2 && *chptr2 != '[')
4062		chptr2++;
4063		if (!*chptr2)
4064		break;
4065
4066		/* yank off the numbers at the end */
4067		chptr2--;
4068		while (isdigit(*chptr2) && chptr2 > chptr)
4069		chptr2--;
4070		chptr2++;
4071		*chptr2 = '\0';
4072
4073		/* Better, now we need the /dev/ back. We're
4074		* done with everything before this point, so
4075		* we can just put the /dev/ part there.
4076		* There will always be room. */
4077		memcpy(chptr - 5, "/dev/", 5);
4078		rc = checkDeviceBootloader(chptr - 5, boot);
4079		if (rc != 2) {
4080		return rc;
4081		}
4082
4083		chptr = chptr2 + 1;
4084		/* skip the [11] bit */
4085		while (*chptr && !isspace(*chptr))
4086		chptr++;
4087		/* and move to the next one */
4088		while (*chptr && isspace(*chptr))
4089		chptr++;
4090		}
4091
4092		/*  we're good to go */
4093		return 2;
4094		}
4095
4096		chptr = end + 1;
4097		}
4098
4099	fd = open(executable, O_RDONLY);	fprintf(stderr,
4100	if (fd < 0)	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4101	/* this doesn't exist if grub hasn't been installed */	mdDev);
4102	return 0;	return 0;
4103		}
4104
4105	if (read(fd, bootSect, 512) != 512) {	int checkForLilo(struct grubConfig *config)
4106	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
4107	executable, strerror(errno));	int fd;
4108	return 1;	unsigned char boot[512];
4109	}	struct singleLine *line;
4110	close(fd);
4111		for (line = config->theLines; line; line = line->next)
4112		if (line->type == LT_BOOT)
4113		break;
4114
4115		if (!line) {
4116		fprintf(stderr,
4117		_
4118		("grubby: no boot line found in lilo configuration\n"));
4119		return 1;
4120		}
4121
4122		if (line->numElements != 2)
4123		return 1;
4124
4125		fd = open("/boot/boot.b", O_RDONLY);
4126		if (fd < 0) {
4127		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4128		"/boot/boot.b", strerror(errno));
4129		return 1;
4130		}
4131
4132		if (read(fd, boot, 512) != 512) {
4133		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4134		"/boot/boot.b", strerror(errno));
4135		return 1;
4136		}
4137		close(fd);
4138
4139		if (!strncmp("/dev/md", line->elements[1].item, 7))
4140		return checkLiloOnRaid(line->elements[1].item, boot);
4141
4142	return checkDeviceBootloader(boot, bootSect);	return checkDeviceBootloader(line->elements[1].item, boot);
4143	}	}
4144
4145	int checkForYaboot(struct grubConfig * config) {	int checkForGrub2(struct grubConfig *config)
4146	/*	{
4147	* This is a simplistic check that we consider good enough for own puporses	if (!access("/etc/grub.d/", R_OK))
4148	*	return 2;
	* If we were to properly check if yaboot is *installed* we'd need to:
	* 1) get the system boot device (LT_BOOT)
	* 2) considering it's a raw filesystem, check if the yaboot binary matches
	*    the content on the boot device
	* 3) if not, copy the binary to a temporary file and run "addnote" on it
	* 4) check again if binary and boot device contents match
	*/
	if (!access("/etc/yaboot.conf", R_OK))
	return 2;
4149
4150	return 1;	return 1;
4151	}	}
4152
4153	static char * getRootSpecifier(char * str) {	int checkForGrub(struct grubConfig *config)
4154	char * idx, * rootspec = NULL;	{
4155		int fd;
4156		unsigned char bootSect[512];
4157		char *boot;
4158		int onSuse = isSuseSystem();
4159
4160		if (onSuse) {
4161		if (parseSuseGrubConf(NULL, &boot))
4162		return 0;
4163		} else {
4164		if (parseSysconfigGrub(NULL, &boot))
4165		return 0;
4166		}
4167
4168		/* assume grub is not installed -- not an error condition */
4169		if (!boot)
4170		return 0;
4171
4172	if (*str == '(') {	fd = open("/boot/grub/stage1", O_RDONLY);
4173	idx = rootspec = strdup(str);	if (fd < 0)
4174	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	/* this doesn't exist if grub hasn't been installed */
4175	*(++idx) = '\0';	return 0;
4176	}
4177	return rootspec;	if (read(fd, bootSect, 512) != 512) {
4178		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4179		"/boot/grub/stage1", strerror(errno));
4180		close(fd);
4181		return 1;
4182		}
4183		close(fd);
4184
4185		/* The more elaborate checks do not work on SuSE. The checks done
4186		* seem to be reasonble (at least for now), so just return success
4187		*/
4188		if (onSuse)
4189		return 2;
4190
4191		return checkDeviceBootloader(boot, bootSect);
4192	}	}
4193
4194	static char * getInitrdVal(struct grubConfig * config,	int checkForExtLinux(struct grubConfig *config)
4195	const char * prefix, struct singleLine *tmplLine,	{
4196	const char * newKernelInitrd,	int fd;
4197	const char ** extraInitrds, int extraInitrdCount)	unsigned char bootSect[512];
4198	{	char *boot;
4199	char *initrdVal, *end;	char executable[] = "/boot/extlinux/extlinux";
	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;
	}
4200
4201	initrdVal = end = malloc(totalSize);	printf("entered: checkForExtLinux()\n");
4202
4203	end = stpcpy (end, newKernelInitrd + prefixLen);	if (parseSysconfigGrub(NULL, &boot))
4204		return 0;
4205
4206	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	/* assume grub is not installed -- not an error condition */
4207	for (i = 0; i < extraInitrdCount; i++) {	if (!boot)
4208	const char *extraInitrd;	return 0;
	int j;
4209
4210	extraInitrd = extraInitrds[i] + prefixLen;	fd = open(executable, O_RDONLY);
4211	/* Don't add entries that are already there */	if (fd < 0)
4212	if (tmplLine != NULL) {	/* this doesn't exist if grub hasn't been installed */
4213	for (j = 2; j < tmplLine->numElements; j++)	return 0;
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4214
4215	if (j != tmplLine->numElements)	if (read(fd, bootSect, 512) != 512) {
4216	continue;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4217		executable, strerror(errno));
4218		return 1;
4219	}	}
4220		close(fd);
4221
4222	*end++ = separatorChar;	return checkDeviceBootloader(boot, bootSect);
4223	end = stpcpy(end, extraInitrd);	}
4224	}
4225		int checkForYaboot(struct grubConfig *config)
4226		{
4227		/*
4228		* This is a simplistic check that we consider good enough for own puporses
4229		*
4230		* If we were to properly check if yaboot is *installed* we'd need to:
4231		* 1) get the system boot device (LT_BOOT)
4232		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4233		*    the content on the boot device
4234		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4235		* 4) check again if binary and boot device contents match
4236		*/
4237		if (!access("/etc/yaboot.conf", R_OK))
4238		return 2;
4239
4240	return initrdVal;	return 1;
4241	}	}
4242
4243	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int checkForElilo(struct grubConfig *config)
4244	const char * prefix,	{
4245	const char * newKernelPath, const char * newKernelTitle,	if (!access("/etc/elilo.conf", R_OK))
4246	const char * newKernelArgs, const char * newKernelInitrd,	return 2;
4247	const char ** extraInitrds, int extraInitrdCount,
4248	const char * newMBKernel, const char * newMBKernelArgs) {	return 1;
4249	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;
4250
4251	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	static char *getRootSpecifier(char *str)
4252	while (findEntryByPath(config, buf, NULL, NULL)) {	{
4253	sprintf(numBuf, "%d", i++);	char *idx, *rootspec = NULL;
4254	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4255		if (*str == '(') {
4256		idx = rootspec = strdup(str);
4257		while (*idx && (*idx != ')') && (!isspace(*idx)))
4258		idx++;
4259		*(++idx) = '\0';
4260	}	}
4261		return rootspec;
4262		}
4263
4264	newKernelTitle = buf + 6;	static char *getInitrdVal(struct grubConfig *config,
4265	}	const char *prefix, struct singleLine *tmplLine,
4266		const char *newKernelInitrd,
4267		const char **extraInitrds, int extraInitrdCount)
4268		{
4269		char *initrdVal, *end;
4270		int i;
4271		size_t totalSize;
4272		size_t prefixLen;
4273		char separatorChar;
4274
4275		prefixLen = strlen(prefix);
4276		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4277
4278		for (i = 0; i < extraInitrdCount; i++) {
4279		totalSize += sizeof(separatorChar);
4280		totalSize += strlen(extraInitrds[i]) - prefixLen;
4281		}
4282
4283		initrdVal = end = malloc(totalSize);
4284
4285		end = stpcpy(end, newKernelInitrd + prefixLen);
4286
4287		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4288		for (i = 0; i < extraInitrdCount; i++) {
4289		const char *extraInitrd;
4290		int j;
4291
4292		extraInitrd = extraInitrds[i] + prefixLen;
4293		/* Don't add entries that are already there */
4294		if (tmplLine != NULL) {
4295		for (j = 2; j < tmplLine->numElements; j++)
4296		if (strcmp
4297		(extraInitrd,
4298		tmplLine->elements[j].item) == 0)
4299		break;
4300
4301	new = malloc(sizeof(*new));	if (j != tmplLine->numElements)
4302	new->skip = 0;	continue;
4303	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;
	}
4304
4305	if (template) {	*end++ = separatorChar;
4306	for (masterLine = template->lines;	end = stpcpy(end, extraInitrd);
	masterLine && (tmplLine = lineDup(masterLine));
	lineFree(tmplLine), masterLine = masterLine->next)
	{
	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next && masterLine->next->type == LT_KERNEL) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
4307	}	}
4308
4309	} else {	return initrdVal;
4310	/* don't have a template, so start the entry with the	}
4311	* appropriate starting line
4312	*/	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4313	switch (config->cfi->entryStart) {	const char *prefix,
4314	case LT_KERNEL:	const char *newKernelPath, const char *newKernelTitle,
4315	if (new->multiboot && config->cfi->mbHyperFirst) {	const char *newKernelArgs, const char *newKernelInitrd,
4316	/* fall through to LT_HYPER */	const char **extraInitrds, int extraInitrdCount,
4317	} else {	const char *newMBKernel, const char *newMBKernelArgs,
4318	newLine = addLine(new, config->cfi, LT_KERNEL,	const char *newDevTreePath, int newIndex)
4319	config->primaryIndent,	{
4320	newKernelPath + strlen(prefix));	struct singleEntry *new, *entry, *prev = NULL;
4321	needs &= ~NEED_KERNEL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4322	break;	int needs;
4323		char *indexs;
4324		char *chptr;
4325		int rc;
4326
4327		if (!newKernelPath)
4328		return 0;
4329
4330		rc = asprintf(&indexs, "%d", newIndex);
4331		if (rc < 0)
4332		return 1;
4333
4334		/* if the newKernelTitle is too long silently munge it into something
4335		* we can live with. truncating is first check, then we'll just mess with
4336		* it until it looks better */
4337		if (config->cfi->maxTitleLength &&
4338		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4339		char *buf = alloca(config->cfi->maxTitleLength + 7);
4340		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4341		int i = 1;
4342
4343		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4344		newKernelTitle);
4345		while (findEntryByPath(config, buf, NULL, NULL)) {
4346		sprintf(numBuf, "%d", i++);
4347		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4348	}	}
4349
4350	case LT_HYPER:	newKernelTitle = buf + 6;
4351	newLine = addLine(new, config->cfi, LT_HYPER,	}
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
4352
4353	case LT_MENUENTRY: {	new = malloc(sizeof(*new));
4354	char *nkt = malloc(strlen(newKernelTitle)+3);	new->skip = 0;
4355	strcpy(nkt, "'");	new->multiboot = 0;
4356	strcat(nkt, newKernelTitle);	new->lines = NULL;
4357	strcat(nkt, "'");	entry = config->entries;
4358	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (unsigned int i = 0; i < newIndex; i++) {
4359	config->primaryIndent, nkt);	if (!entry)
4360	free(nkt);	break;
4361	needs &= ~NEED_TITLE;	prev = entry;
4362	needs |= NEED_END;	entry = entry->next;
4363	break;	}
4364	}	new->next = entry;
4365	case LT_TITLE:
4366	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	if (prev)
4367	char * templabel;	prev->next = new;
4368	int x = 0, y = 0;	else
4369		config->entries = new;
4370	templabel = strdup(newKernelTitle);
4371	while( templabel[x]){	/* copy/update from the template */
4372	if( templabel[x] == ' ' ){	needs = NEED_KERNEL | NEED_TITLE;
4373	y = x;	if (newKernelInitrd)
4374	while( templabel[y] ){	needs |= NEED_INITRD;
4375	templabel[y] = templabel[y+1];	if (newMBKernel) {
4376	y++;	needs |= NEED_MB;
4377		new->multiboot = 1;
4378		}
4379		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4380		needs |= NEED_DEVTREE;
4381
4382		if (template) {
4383		for (masterLine = template->lines;
4384		masterLine && (tmplLine = lineDup(masterLine));
4385		lineFree(tmplLine), masterLine = masterLine->next) {
4386		dbgPrintf("addNewKernel processing %d\n",
4387		tmplLine->type);
4388
4389		/* skip comments */
4390		chptr = tmplLine->indent;
4391		while (*chptr && isspace(*chptr))
4392		chptr++;
4393		if (*chptr == '#')
4394		continue;
4395
4396		if (iskernel(tmplLine->type)
4397		&& tmplLine->numElements >= 2) {
4398		if (!template->multiboot && (needs & NEED_MB)) {
4399		/* it's not a multiboot template and
4400		* this is the kernel line.  Try to
4401		* be intelligent about inserting the
4402		* hypervisor at the same time.
4403		*/
4404		if (config->cfi->mbHyperFirst) {
4405		/* insert the hypervisor first */
4406		newLine =
4407		addLine(new, config->cfi,
4408		LT_HYPER,
4409		tmplLine->indent,
4410		newMBKernel +
4411		strlen(prefix));
4412		/* set up for adding the
4413		* kernel line */
4414		free(tmplLine->indent);
4415		tmplLine->indent =
4416		strdup(config->
4417		secondaryIndent);
4418		needs &= ~NEED_MB;
4419		}
4420		if (needs & NEED_KERNEL) {
4421		/* use addLineTmpl to
4422		* preserve line elements,
4423		* otherwise we could just
4424		* call addLine.
4425		* Unfortunately this means
4426		* making some changes to the
4427		* template such as the
4428		* indent change above and
4429		* the type change below.
4430		*/
4431		struct keywordTypes *mbm_kw =
4432		getKeywordByType
4433		(LT_MBMODULE, config->cfi);
4434		if (mbm_kw) {
4435		tmplLine->type =
4436		LT_MBMODULE;
4437		free(tmplLine->
4438		elements[0].item);
4439		tmplLine->elements[0].
4440		item =
4441		strdup(mbm_kw->key);
4442		}
4443		newLine =
4444		addLineTmpl(new, tmplLine,
4445		newLine,
4446		newKernelPath +
4447		strlen(prefix),
4448		config->cfi);
4449		needs &= ~NEED_KERNEL;
4450		}
4451		if (needs & NEED_MB) { /* !mbHyperFirst */
4452		newLine =
4453		addLine(new, config->cfi,
4454		LT_HYPER,
4455		config->
4456		secondaryIndent,
4457		newMBKernel +
4458		strlen(prefix));
4459		needs &= ~NEED_MB;
4460		}
4461		} else if (needs & NEED_KERNEL) {
4462		newLine =
4463		addLineTmpl(new, tmplLine, newLine,
4464		newKernelPath +
4465		strlen(prefix),
4466		config->cfi);
4467		needs &= ~NEED_KERNEL;
4468		}
4469
4470		} else if (tmplLine->type == LT_HYPER &&
4471		tmplLine->numElements >= 2) {
4472		if (needs & NEED_MB) {
4473		newLine =
4474		addLineTmpl(new, tmplLine, newLine,
4475		newMBKernel +
4476		strlen(prefix),
4477		config->cfi);
4478		needs &= ~NEED_MB;
4479		}
4480
4481		} else if (tmplLine->type == LT_MBMODULE &&
4482		tmplLine->numElements >= 2) {
4483		if (new->multiboot) {
4484		if (needs & NEED_KERNEL) {
4485		newLine =
4486		addLineTmpl(new, tmplLine,
4487		newLine,
4488		newKernelPath +
4489		strlen(prefix),
4490		config->cfi);
4491		needs &= ~NEED_KERNEL;
4492		} else if (config->cfi->mbInitRdIsModule
4493		&& (needs & NEED_INITRD)) {
4494		char *initrdVal;
4495		initrdVal =
4496		getInitrdVal(config, prefix,
4497		tmplLine,
4498		newKernelInitrd,
4499		extraInitrds,
4500		extraInitrdCount);
4501		newLine =
4502		addLineTmpl(new, tmplLine,
4503		newLine,
4504		initrdVal,
4505		config->cfi);
4506		free(initrdVal);
4507		needs &= ~NEED_INITRD;
4508	}	}
4509		} else if (needs & NEED_KERNEL) {
4510		/* template is multi but new is not,
4511		* insert the kernel in the first
4512		* module slot
4513		*/
4514		tmplLine->type =
4515		preferredLineType(LT_KERNEL,
4516		config->cfi);
4517		free(tmplLine->elements[0].item);
4518		tmplLine->elements[0].item =
4519		strdup(getKeywordByType
4520		(tmplLine->type,
4521		config->cfi)->key);
4522		newLine =
4523		addLineTmpl(new, tmplLine, newLine,
4524		newKernelPath +
4525		strlen(prefix),
4526		config->cfi);
4527		needs &= ~NEED_KERNEL;
4528		} else if (needs & NEED_INITRD) {
4529		char *initrdVal;
4530		/* template is multi but new is not,
4531		* insert the initrd in the second
4532		* module slot
4533		*/
4534		tmplLine->type =
4535		preferredLineType(LT_INITRD,
4536		config->cfi);
4537		free(tmplLine->elements[0].item);
4538		tmplLine->elements[0].item =
4539		strdup(getKeywordByType
4540		(tmplLine->type,
4541		config->cfi)->key);
4542		initrdVal =
4543		getInitrdVal(config, prefix,
4544		tmplLine,
4545		newKernelInitrd,
4546		extraInitrds,
4547		extraInitrdCount);
4548		newLine =
4549		addLineTmpl(new, tmplLine, newLine,
4550		initrdVal, config->cfi);
4551		free(initrdVal);
4552		needs &= ~NEED_INITRD;
4553	}	}
4554	x++;
4555		} else if (isinitrd(tmplLine->type)
4556		&& tmplLine->numElements >= 2) {
4557		if (needs & NEED_INITRD && new->multiboot
4558		&& !template->multiboot
4559		&& config->cfi->mbInitRdIsModule) {
4560		/* make sure we don't insert the
4561		* module initrd before the module
4562		* kernel... if we don't do it here,
4563		* it will be inserted following the
4564		* template.
4565		*/
4566		if (!needs & NEED_KERNEL) {
4567		char *initrdVal;
4568
4569		initrdVal =
4570		getInitrdVal(config, prefix,
4571		tmplLine,
4572		newKernelInitrd,
4573		extraInitrds,
4574		extraInitrdCount);
4575		newLine =
4576		addLine(new, config->cfi,
4577		LT_MBMODULE,
4578		config->
4579		secondaryIndent,
4580		initrdVal);
4581		free(initrdVal);
4582		needs &= ~NEED_INITRD;
4583		}
4584		} else if (needs & NEED_INITRD) {
4585		char *initrdVal;
4586		initrdVal =
4587		getInitrdVal(config, prefix,
4588		tmplLine,
4589		newKernelInitrd,
4590		extraInitrds,
4591		extraInitrdCount);
4592		newLine =
4593		addLineTmpl(new, tmplLine, newLine,
4594		initrdVal, config->cfi);
4595		free(initrdVal);
4596		needs &= ~NEED_INITRD;
4597		}
4598
4599		} else if (tmplLine->type == LT_MENUENTRY &&
4600		(needs & NEED_TITLE)) {
4601		requote(tmplLine, config->cfi);
4602		char *nkt = malloc(strlen(newKernelTitle) + 3);
4603		strcpy(nkt, "'");
4604		strcat(nkt, newKernelTitle);
4605		strcat(nkt, "'");
4606		newLine =
4607		addLineTmpl(new, tmplLine, newLine, nkt,
4608		config->cfi);
4609		free(nkt);
4610		needs &= ~NEED_TITLE;
4611		} else if (tmplLine->type == LT_TITLE &&
4612		(needs & NEED_TITLE)) {
4613		if (tmplLine->numElements >= 2) {
4614		newLine =
4615		addLineTmpl(new, tmplLine, newLine,
4616		newKernelTitle,
4617		config->cfi);
4618		needs &= ~NEED_TITLE;
4619		} else if (tmplLine->numElements == 1 &&
4620		config->cfi->titleBracketed) {
4621		/* addLineTmpl doesn't handle
4622		* titleBracketed */
4623		newLine =
4624		addLine(new, config->cfi, LT_TITLE,
4625		tmplLine->indent,
4626		newKernelTitle);
4627		needs &= ~NEED_TITLE;
4628		}
4629		} else if (tmplLine->type == LT_ECHO) {
4630		requote(tmplLine, config->cfi);
4631		static const char *prefix = "'Loading ";
4632		if (tmplLine->numElements > 1 &&
4633		strstr(tmplLine->elements[1].item, prefix)
4634		&& masterLine->next
4635		&& iskernel(masterLine->next->type)) {
4636		char *newTitle =
4637		malloc(strlen(prefix) +
4638		strlen(newKernelTitle) + 2);
4639
4640		strcpy(newTitle, prefix);
4641		strcat(newTitle, newKernelTitle);
4642		strcat(newTitle, "'");
4643		newLine =
4644		addLine(new, config->cfi, LT_ECHO,
4645		tmplLine->indent, newTitle);
4646		free(newTitle);
4647		} else {
4648		/* pass through other lines from the
4649		* template */
4650		newLine =
4651		addLineTmpl(new, tmplLine, newLine,
4652		NULL, config->cfi);
4653		}
4654		} else if (tmplLine->type == LT_DEVTREE &&
4655		tmplLine->numElements == 2
4656		&& newDevTreePath) {
4657		newLine =
4658		addLineTmpl(new, tmplLine, newLine,
4659		newDevTreePath + strlen(prefix),
4660		config->cfi);
4661		needs &= ~NEED_DEVTREE;
4662		} else if (tmplLine->type == LT_ENTRY_END
4663		&& needs & NEED_DEVTREE) {
4664		const char *ndtp = newDevTreePath;
4665		if (!strncmp
4666		(newDevTreePath, prefix, strlen(prefix)))
4667		ndtp += strlen(prefix);
4668		newLine = addLine(new, config->cfi, LT_DEVTREE,
4669		config->secondaryIndent,
4670		ndtp);
4671		needs &= ~NEED_DEVTREE;
4672		newLine =
4673		addLineTmpl(new, tmplLine, newLine, NULL,
4674		config->cfi);
4675		} else {
4676		/* pass through other lines from the template */
4677		newLine =
4678		addLineTmpl(new, tmplLine, newLine, NULL,
4679		config->cfi);
4680	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
4681	}	}
	needs &= ~NEED_TITLE;
	break;
4682
4683	default:	} else {
4684	abort();	/* don't have a template, so start the entry with the
4685		* appropriate starting line
4686		*/
4687		switch (config->cfi->entryStart) {
4688		case LT_KERNEL:
4689		case LT_KERNEL_EFI:
4690		case LT_KERNEL_16:
4691		if (new->multiboot && config->cfi->mbHyperFirst) {
4692		/* fall through to LT_HYPER */
4693		} else {
4694		newLine = addLine(new, config->cfi,
4695		preferredLineType(LT_KERNEL,
4696		config->
4697		cfi),
4698		config->primaryIndent,
4699		newKernelPath +
4700		strlen(prefix));
4701		needs &= ~NEED_KERNEL;
4702		break;
4703		}
4704
4705		case LT_HYPER:
4706		newLine = addLine(new, config->cfi, LT_HYPER,
4707		config->primaryIndent,
4708		newMBKernel + strlen(prefix));
4709		needs &= ~NEED_MB;
4710		break;
4711
4712		case LT_MENUENTRY:{
4713		char *nkt = malloc(strlen(newKernelTitle) + 3);
4714		strcpy(nkt, "'");
4715		strcat(nkt, newKernelTitle);
4716		strcat(nkt, "'");
4717		newLine =
4718		addLine(new, config->cfi, LT_MENUENTRY,
4719		config->primaryIndent, nkt);
4720		free(nkt);
4721		needs &= ~NEED_TITLE;
4722		needs |= NEED_END;
4723		break;
4724		}
4725		case LT_TITLE:
4726		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4727		char *templabel;
4728		int x = 0, y = 0;
4729
4730		templabel = strdup(newKernelTitle);
4731		while (templabel[x]) {
4732		if (templabel[x] == ' ') {
4733		y = x;
4734		while (templabel[y]) {
4735		templabel[y] =
4736		templabel[y + 1];
4737		y++;
4738		}
4739		}
4740		x++;
4741		}
4742		newLine = addLine(new, config->cfi, LT_TITLE,
4743		config->primaryIndent,
4744		templabel);
4745		free(templabel);
4746		} else {
4747		newLine = addLine(new, config->cfi, LT_TITLE,
4748		config->primaryIndent,
4749		newKernelTitle);
4750		}
4751		needs &= ~NEED_TITLE;
4752		break;
4753
4754		default:
4755		abort();
4756		}
4757	}	}
	}
4758
4759	/* add the remainder of the lines, i.e. those that either	struct singleLine *endLine = NULL;
4760	* weren't present in the template, or in the case of no template,	endLine = getLineByType(LT_ENTRY_END, new->lines);
4761	* all the lines following the entryStart.	if (endLine) {
4762	*/	removeLine(new, endLine);
4763	if (needs & NEED_TITLE) {	needs |= NEED_END;
4764	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;
	}
4765
4766	if (needs) {	/* add the remainder of the lines, i.e. those that either
4767	printf(_("grubby: needs=%d, aborting\n"), needs);	* weren't present in the template, or in the case of no template,
4768	abort();	* all the lines following the entryStart.
4769	}	*/
4770		if (needs & NEED_TITLE) {
4771		newLine = addLine(new, config->cfi, LT_TITLE,
4772		config->secondaryIndent, newKernelTitle);
4773		needs &= ~NEED_TITLE;
4774		}
4775		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4776		newLine = addLine(new, config->cfi, LT_HYPER,
4777		config->secondaryIndent,
4778		newMBKernel + strlen(prefix));
4779		needs &= ~NEED_MB;
4780		}
4781		if (needs & NEED_KERNEL) {
4782		newLine = addLine(new, config->cfi,
4783		(new->multiboot
4784		&& getKeywordByType(LT_MBMODULE,
4785		config->cfi))
4786		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4787		config->
4788		cfi),
4789		config->secondaryIndent,
4790		newKernelPath + strlen(prefix));
4791		needs &= ~NEED_KERNEL;
4792		}
4793		if (needs & NEED_MB) {
4794		newLine = addLine(new, config->cfi, LT_HYPER,
4795		config->secondaryIndent,
4796		newMBKernel + strlen(prefix));
4797		needs &= ~NEED_MB;
4798		}
4799		if (needs & NEED_INITRD) {
4800		char *initrdVal;
4801		initrdVal =
4802		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4803		extraInitrds, extraInitrdCount);
4804		newLine =
4805		addLine(new, config->cfi,
4806		(new->multiboot
4807		&& getKeywordByType(LT_MBMODULE, config->cfi))
4808		? LT_MBMODULE : preferredLineType(LT_INITRD,
4809		config->cfi),
4810		config->secondaryIndent, initrdVal);
4811		free(initrdVal);
4812		needs &= ~NEED_INITRD;
4813		}
4814		if (needs & NEED_DEVTREE) {
4815		newLine = addLine(new, config->cfi, LT_DEVTREE,
4816		config->secondaryIndent, newDevTreePath);
4817		needs &= ~NEED_DEVTREE;
4818		}
4819
4820		/* NEEDS_END must be last on bootloaders that need it... */
4821		if (needs & NEED_END) {
4822		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4823		config->secondaryIndent, NULL);
4824		needs &= ~NEED_END;
4825		}
4826
4827	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (needs) {
4828	newMBKernelArgs, NULL)) return 1;	printf(_("grubby: needs=%d, aborting\n"), needs);
4829		abort();
4830		}
4831
4832	return 0;	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4833		newMBKernelArgs, NULL)) {
4834		config->isModified = 1;
4835		return 1;
4836		}
4837
4838		return 0;
4839	}	}
4840
4841	static void traceback(int signum)	int main(int argc, const char **argv)
4842	{	{
4843	void *array[40];	poptContext optCon;
4844	size_t size;	const char *grubConfig = NULL;
4845		char *outputFile = NULL;
4846	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4847	memset(array, '\0', sizeof (array));	int flags = 0;
4848	size = backtrace(array, 40);	int badImageOkay = 0;
4849		int configureGrub2 = 0;
4850	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4851	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4852	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4853	exit(1);	int bootloaderProbe = 0;
4854	}	int extraInitrdCount = 0;
4855		char *updateKernelPath = NULL;
4856	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4857	poptContext optCon;	char *removeKernelPath = NULL;
4858	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4859	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4860	int arg = 0;	char *newKernelTitle = NULL;
4861	int flags = 0;	char *newDevTreePath = NULL;
4862	int badImageOkay = 0;	char *newMBKernel = NULL;
4863	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4864	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4865	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4866	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4867	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4868	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4869	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4870	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4871	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4872	char * newKernelArgs = NULL;	char *envPath = NULL;
4873	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4874	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4875	char * newKernelVersion = NULL;	struct grubConfig *config;
4876	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4877	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4878	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4879	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4880	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4881	char * defaultKernel = NULL;	int defaultIndex = -1;
4882	char * removeArgs = NULL;	struct poptOption options[] = {
4883	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4884	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4885	const char * chptr = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4886	struct configFileInfo * cfi = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4887	struct grubConfig * config;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4888	struct singleEntry * template = NULL;	_("default arguments for the new kernel or new arguments for "
4889	int copyDefault = 0, makeDefault = 0;	"kernel being updated"), _("args")},
4890	int displayDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4891	int displayDefaultIndex = 0;	_("default arguments for the new multiboot kernel or "
4892	int displayDefaultTitle = 0;	"new arguments for multiboot kernel being updated"), NULL},
4893	struct poptOption options[] = {	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4894	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	_
4895	_("add an entry for the specified kernel"), _("kernel-path") },	("don't sanity check images in boot entries (for testing only)"),
4896	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	NULL},
4897	_("add an entry for the specified multiboot kernel"), NULL },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4898	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	_
4899	_("default arguments for the new kernel or new arguments for "	("filesystem which contains /boot directory (for testing only)"),
4900	"kernel being updated"), _("args") },	_("bootfs")},
4901	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4902	_("default arguments for the new multiboot kernel or "	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4903	"new arguments for multiboot kernel being updated"), NULL },	_("check which bootloader is installed on boot sector")},
	{ "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__) || defined (__powerpc64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check which bootloader is installed on boot sector") },
4904	#endif	#endif
4905	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4906	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4907	_("path") },	_("path")},
4908	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4909	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4910	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4911	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4912	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4913	"template"), NULL },	"template"), NULL},
4914	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4915	_("print debugging information for failures") },	_("print debugging information for failures")},
4916	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4917	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4918	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4919	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4920	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4921	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4922	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4923	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4924	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4925	_("configure extlinux bootloader (from syslinux)") },	_("device tree directory for new stanza"), _("dtb-path")},
4926	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4927	_("configure grub bootloader") },	_("configure elilo bootloader")},
4928	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4929	_("configure grub2 bootloader") },	_("force grub2 stanzas to use efi")},
4930	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4931	_("display boot information for specified kernel"),	_("path for environment data"),
4932	_("kernel-path") },	_("path")},
4933	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4934	_("initrd image for the new kernel"), _("initrd-path") },	_("configure extlinux bootloader (from syslinux)")},
4935	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4936	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	_("configure grub bootloader")},
4937	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4938	_("configure lilo bootloader") },	_("configure grub2 bootloader")},
4939	{ "make-default", 0, 0, &makeDefault, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4940	_("make the newly added entry the default boot entry"), NULL },	_("display boot information for specified kernel"),
4941	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("kernel-path")},
4942	_("path to output updated config file (\"-\" for stdout)"),	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4943	_("path") },	_("initrd image for the new kernel"), _("initrd-path")},
4944	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4945	_("remove kernel arguments"), NULL },	_
4946	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	("auxiliary initrd image for things other than the new kernel"),
4947	_("remove multiboot kernel arguments"), NULL },	_("initrd-path")},
4948	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4949	_("remove all entries for the specified kernel"),	_("configure lilo bootloader")},
4950	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4951	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("make the newly added entry the default boot entry"), NULL},
4952	_("remove all entries for the specified multiboot kernel"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4953	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("path to output updated config file (\"-\" for stdout)"),
4954	_("make the first entry referencing the specified kernel "	_("path")},
4955	"the default"), _("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4956	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	_("remove kernel arguments"), NULL},
4957	_("configure silo bootloader") },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4958	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("remove multiboot kernel arguments"), NULL},
4959	_("title to use for the new kernel entry"), _("entry-title") },	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4960	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	_("remove all entries for the specified kernel"),
4961	_("updated information for the specified kernel"),	_("kernel-path")},
4962	_("kernel-path") },	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4963	{ "version", 'v', 0, NULL, 'v',	_("remove all entries for the specified multiboot kernel"),
4964	_("print the version of this program and exit"), NULL },	NULL},
4965	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4966	_("configure yaboot bootloader") },	_("make the first entry referencing the specified kernel "
4967	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	"the default"), _("kernel-path")},
4968	_("configure zipl bootloader") },	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4969	POPT_AUTOHELP	_("make the given entry index the default entry"),
4970	{ 0, 0, 0, 0, 0 }	_("entry-index")},
4971	};	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4972		_("use the given index when creating a new entry"),
4973	useextlinuxmenu=0;	_("entry-index")},
4974		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4975	signal(SIGSEGV, traceback);	_("configure silo bootloader")},
4976		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4977	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("title to use for the new kernel entry"), _("entry-title")},
4978	poptReadDefaultConfig(optCon, 1);	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4979		_("updated information for the specified kernel"),
4980	while ((arg = poptGetNextOpt(optCon)) >= 0) {	_("kernel-path")},
4981	switch (arg) {	{"version", 'v', 0, NULL, 'v',
4982	case 'v':	_("print the version of this program and exit"), NULL},
4983	printf("grubby version %s\n", VERSION);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4984	exit(0);	_("configure yaboot bootloader")},
4985	break;	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4986	case 'i':	_("configure zipl bootloader")},
4987	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	POPT_AUTOHELP {0, 0, 0, 0, 0}
4988	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	};
4989	} else {
4990	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	useextlinuxmenu = 0;
4991	return 1;
4992	}	int i = 0;
4993	break;	for (int j = 1; j < argc; j++)
4994		i += strlen(argv[j]) + 1;
4995		saved_command_line = malloc(i);
4996		if (!saved_command_line) {
4997		fprintf(stderr, "grubby: %m\n");
4998		exit(1);
4999		}
5000		saved_command_line[0] = '\0';
5001		for (int j = 1; j < argc; j++) {
5002		strcat(saved_command_line, argv[j]);
5003		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5004		}
5005
5006		optCon = poptGetContext("grubby", argc, argv, options, 0);
5007		poptReadDefaultConfig(optCon, 1);
5008
5009		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5010		switch (arg) {
5011		case 'v':
5012		printf("grubby version %s\n", VERSION);
5013		exit(0);
5014		break;
5015		case 'i':
5016		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5017		extraInitrds[extraInitrdCount++] =
5018		strdup(poptGetOptArg(optCon));
5019		} else {
5020		fprintf(stderr,
5021		_
5022		("grubby: extra initrd maximum is %d\n"),
5023		extraInitrdCount);
5024		return 1;
5025		}
5026		break;
5027		}
5028	}	}
	}
5029
5030	if (arg < -1) {	if (arg < -1) {
5031	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5032	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5033	poptStrerror(arg));	poptStrerror(arg));
5034	return 1;	return 1;
5035	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5036
5037	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5038	configureYaboot + configureSilo + configureZipl +	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5039	configureExtLinux ) > 1) {	return 1;
5040	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	}
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureGrub2) {
	cfi = &grub2ConfigType;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
5041
5042	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5043	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5044	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5045	else	fprintf(stderr,
5046	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5047	cfi = &eliloConfigType;	return 1;
5048	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5049	cfi = &yabootConfigType;	fprintf(stderr,
5050	#elif __sparc__	_
5051	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5052	#elif __s390__	return 1;
5053	cfi = &ziplConfigType;	} else if (configureGrub2) {
5054	#elif __s390x__	cfi = &grub2ConfigType;
5055	cfi = &ziplConfigtype;	if (envPath)
5056	#else	cfi->envFile = envPath;
5057	cfi = &grubConfigType;	} else if (configureLilo) {
5058	#endif	cfi = &liloConfigType;
5059	}	} else if (configureGrub) {
5060		cfi = &grubConfigType;
5061		} else if (configureELilo) {
5062		cfi = &eliloConfigType;
5063		} else if (configureYaboot) {
5064		cfi = &yabootConfigType;
5065		} else if (configureSilo) {
5066		cfi = &siloConfigType;
5067		} else if (configureZipl) {
5068		cfi = &ziplConfigType;
5069		} else if (configureExtLinux) {
5070		cfi = &extlinuxConfigType;
5071		useextlinuxmenu = 1;
5072		}
5073
5074		if (!cfi) {
5075		if (grub2FindConfig(&grub2ConfigType)) {
5076		cfi = &grub2ConfigType;
5077		if (envPath)
5078		cfi->envFile = envPath;
5079		} else
5080		#ifdef __ia64__
5081		cfi = &eliloConfigType;
5082		#elif __powerpc__
5083		cfi = &yabootConfigType;
5084		#elif __sparc__
5085		cfi = &siloConfigType;
5086		#elif __s390__
5087		cfi = &ziplConfigType;
5088		#elif __s390x__
5089		cfi = &ziplConfigtype;
5090		#else
5091		cfi = &grubConfigType;
5092		#endif
5093		}
5094
5095	if (!grubConfig) {	if (!grubConfig) {
5096	if (cfi->findConfig)	if (cfi->findConfig)
5097	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5098	if (!grubConfig)	if (!grubConfig)
5099	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5100	}	}
5101
5102	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5103	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5104	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	|| defaultKernel || displayDefaultIndex
5105	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5106		|| (defaultIndex >= 0))) {
5107		fprintf(stderr,
5108		_("grubby: --bootloader-probe may not be used with "
5109	"specified option"));	"specified option"));
5110	return 1;	return 1;
5111	}	}
5112
5113	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5114	removeKernelPath)) {	removeKernelPath)) {
5115	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5116	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5117	return 1;	return 1;
5118	}	}
5119
5120	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5121	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5122	return 1;	return 1;
5123	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5124	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5125	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5126	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5127	return 1;	return 1;
5128	}	}
5129
5130	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5131	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5132	"not be used together"));	"not be used together"));
5133	return 1;	return 1;
5134	}	}
5135
5136	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5137	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5138		"may not be used together\n"));
5139		return 1;
5140		} else if (defaultKernel && removeKernelPath &&
5141		!strcmp(defaultKernel, removeKernelPath)) {
5142		fprintf(stderr,
5143		_("grubby: cannot make removed kernel the default\n"));
5144		return 1;
5145		} else if (defaultKernel && newKernelPath &&
5146		!strcmp(defaultKernel, newKernelPath)) {
5147		makeDefault = 1;
5148		defaultKernel = NULL;
5149		} else if (defaultKernel && (defaultIndex >= 0)) {
5150		fprintf(stderr,
5151		_("grubby: --set-default and --set-default-index "
5152	"may not be used together\n"));	"may not be used together\n"));
5153	return 1;	return 1;
5154	} else if (defaultKernel && removeKernelPath &&	}
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
5155
5156	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5157	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5158	"is used\n"));	_("grubby: output file must be specified if stdin "
5159	return 1;	"is used\n"));
5160	}	return 1;
5161		}
5162
5163	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5164	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5165	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5166	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5167	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5168	}	return 1;
5169		}
5170
5171	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5172
5173	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5174	if (!bootPrefix) {	if (!bootPrefix) {
5175	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5176	if (!bootPrefix) return 1;	if (!bootPrefix)
5177		return 1;
5178		} else {
5179		/* this shouldn't end with a / */
5180		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5181		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5182		}
5183	} else {	} else {
5184	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5185	}	}
	} else {
	bootPrefix = "";
	}
5186
5187	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5188	extraInitrdCount > 0) {	fprintf(stderr,
5189	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5190	return 1;	cfi->defaultConfig);
5191	}	return 1;
5192		}
5193
5194	if (bootloaderProbe) {	if (bootloaderProbe) {
5195	int lrc = 0, grc = 0, gr2c = 0, erc = 0, yrc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5196	struct grubConfig * lconfig, * gconfig, * yconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5197
5198	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5199	if (grub2config) {	if (grub2config) {
5200	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5201	if (!gconfig)	if (!gconfig)
5202	gr2c = 1;	gr2c = 1;
5203	else	else
5204	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5205	}	}
	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 (!access(yabootConfigType.defaultConfig, F_OK)) {
	yconfig = readConfig(yabootConfigType.defaultConfig,
	&yabootConfigType);
	if (!yconfig)
	yrc = 1;
	else
	yrc = checkForYaboot(lconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1 || yrc == 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");
	if (yrc == 2) printf("yaboot\n");
5206
5207	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5208	}	if (!access(grubconfig, F_OK)) {
5209		gconfig = readConfig(grubconfig, &grubConfigType);
5210		if (!gconfig)
5211		grc = 1;
5212		else
5213		grc = checkForGrub(gconfig);
5214		}
5215
5216	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5217	if (!config) return 1;	lconfig =
5218		readConfig(liloConfigType.defaultConfig,
5219		&liloConfigType);
5220		if (!lconfig)
5221		lrc = 1;
5222		else
5223		lrc = checkForLilo(lconfig);
5224		}
5225
5226	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5227	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5228	struct singleEntry * entry;	&eliloConfigType);
5229	char * rootspec;	if (!econfig)
5230		erc = 1;
5231	if (config->defaultImage == -1) return 0;	else
5232	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5233	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));
5234
5235	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5236		lconfig =
5237		readConfig(extlinuxConfigType.defaultConfig,
5238		&extlinuxConfigType);
5239		if (!lconfig)
5240		extrc = 1;
5241		else
5242		extrc = checkForExtLinux(lconfig);
5243		}
5244
5245	} else if (displayDefaultTitle) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5246	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5247	struct singleEntry * entry;	&yabootConfigType);
5248		if (!yconfig)
5249	if (config->defaultImage == -1) return 0;	yrc = 1;
5250	entry = findEntryByIndex(config, config->defaultImage);	else
5251	if (!entry) return 0;	yrc = checkForYaboot(yconfig);
5252		}
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
5253
5254	} else {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5255	char * title;	|| erc == 1)
5256		return 1;
5257
5258		if (lrc == 2)
5259		printf("lilo\n");
5260		if (gr2c == 2)
5261		printf("grub2\n");
5262		if (grc == 2)
5263		printf("grub\n");
5264		if (extrc == 2)
5265		printf("extlinux\n");
5266		if (yrc == 2)
5267		printf("yaboot\n");
5268		if (erc == 2)
5269		printf("elilo\n");
5270
5271	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	return 0;
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5272	}	}
	return 0;
5273
5274	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5275	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5276	printf("%i\n", config->defaultImage);	exit(1);
5277		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5278
5279	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5280	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5281	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5282	bootPrefix, flags);
5283	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5284	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5285	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5286	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5287	if (updateInitrd(config, updateKernelPath, bootPrefix,
5288	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5289	}	return 0;
5290	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5291	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5292	(const char **)extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5293	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5294		if (!entry)
5295		return 0;
5296	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5297	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5298	"Not writing out new config.\n"));
5299	return 1;	line =
5300	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5301		LT_KERNEL_16, entry->lines);
5302		if (!line)
5303		return 0;
5304
5305		rootspec = getRootSpecifier(line->elements[1].item);
5306		printf("%s%s\n", bootPrefix, line->elements[1].item +
5307		((rootspec != NULL) ? strlen(rootspec) : 0));
5308
5309		return 0;
5310
5311		} else if (displayDefaultTitle) {
5312		struct singleLine *line;
5313		struct singleEntry *entry;
5314
5315		if (config->defaultImage == NO_DEFAULT_ENTRY)
5316		return 0;
5317		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5318		cfi->defaultIsSaved)
5319		config->defaultImage = FIRST_ENTRY_INDEX;
5320		entry = findEntryByIndex(config, config->defaultImage);
5321		if (!entry)
5322		return 0;
5323
5324		if (!configureGrub2) {
5325		char *title;
5326		line = getLineByType(LT_TITLE, entry->lines);
5327		if (!line)
5328		return 0;
5329		title = extractTitle(config, line);
5330		if (!title)
5331		return 0;
5332		printf("%s\n", title);
5333		free(title);
5334		} else {
5335		char *title;
5336
5337		dbgPrintf
5338		("This is GRUB2, default title is embeded in menuentry\n");
5339		line = getLineByType(LT_MENUENTRY, entry->lines);
5340		if (!line)
5341		return 0;
5342		title = grub2ExtractTitle(line);
5343		if (title)
5344		printf("%s\n", title);
5345		}
5346		return 0;
5347
5348		} else if (displayDefaultIndex) {
5349		if (config->defaultImage == NO_DEFAULT_ENTRY)
5350		return 0;
5351		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5352		cfi->defaultIsSaved)
5353		config->defaultImage = FIRST_ENTRY_INDEX;
5354		printf("%i\n", config->defaultImage);
5355		return 0;
5356
5357		} else if (kernelInfo)
5358		return displayInfo(config, kernelInfo, bootPrefix);
5359
5360		if (copyDefault) {
5361		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5362		if (!template)
5363		return 1;
5364		}
5365
5366		markRemovedImage(config, removeKernelPath, bootPrefix);
5367		markRemovedImage(config, removeMBKernel, bootPrefix);
5368		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5369		makeDefault, bootPrefix, flags, defaultIndex,
5370		newIndex);
5371		setFallbackImage(config, newKernelPath != NULL);
5372		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5373		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5374		return 1;
5375		if (updateKernelPath && newKernelInitrd) {
5376		if (newMBKernel) {
5377		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5378		bootPrefix, newKernelInitrd,
5379		newKernelTitle))
5380		return 1;
5381		} else {
5382		if (updateInitrd(config, updateKernelPath, bootPrefix,
5383		newKernelInitrd, newKernelTitle))
5384		return 1;
5385		}
5386		}
5387		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5388		newKernelTitle, newKernelArgs, newKernelInitrd,
5389		(const char **)extraInitrds, extraInitrdCount,
5390		newMBKernel, newMBKernelArgs, newDevTreePath,
5391		newIndex))
5392		return 1;
5393
5394		if (numEntries(config) == 0) {
5395		fprintf(stderr,
5396		_("grubby: doing this would leave no kernel entries. "
5397		"Not writing out new config.\n"));
5398		return 1;
5399		}
5400
5401	if (!outputFile)	if (!outputFile)
5402	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5403
5404	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5405	}	}

---

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Legend: Removed from v.1853   changed lines   Added in v.3027