Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1868 by niro, Mon Jul 2 13:22:30 2012 UTC	revision 3021 by niro, Tue Jun 27 14:39:37 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 */
	char *dir = strdupa(outName);
	rc = chdir(dirname(dir));
	free(dir);
	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		entry = findEntryByIndex(cfg, cfg->defaultImage);
1716		line = getLineByType(LT_MENUENTRY, entry->lines);
1717		if (!line)
1718		line = getLineByType(LT_TITLE, entry->lines);
1719		if (line) {
1720		title = extractTitle(cfg, line);
1721		if (title)
1722		cfg->cfi->setEnv(cfg->cfi,
1723		"saved_entry", title);
1724		}
1725		}
1726		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1727		if (cfg->cfi->defaultIsIndex) {
1728		if (cfg->cfi->defaultIsVariable) {
1729		fprintf(out, "%sset default=\"%d\"\n", indent,
1730		cfg->defaultImage);
1731		} else {
1732		fprintf(out, "%sdefault%s%d\n", indent,
1733		separator, cfg->defaultImage);
1734		}
1735		} else {
1736		int image = cfg->defaultImage;
1737
1738		entry = cfg->entries;
1739		while (entry && entry->skip)
1740		entry = entry->next;
1741
1742		i = 0;
1743		while (entry && i < image) {
1744		entry = entry->next;
1745
1746		while (entry && entry->skip)
1747		entry = entry->next;
1748		i++;
1749		}
1750
1751		if (!entry)
1752		return;
1753
1754		line = getLineByType(LT_TITLE, entry->lines);
1755
1756		if (line && line->numElements >= 2)
1757		fprintf(out, "%sdefault%s%s\n", indent,
1758		separator, line->elements[1].item);
1759		else if (line && (line->numElements == 1)
1760		&& cfg->cfi->titleBracketed) {
1761		char *title = extractTitle(cfg, line);
1762		if (title) {
1763		fprintf(out, "%sdefault%s%s\n", indent,
1764		separator, title);
1765		free(title);
1766		}
1767		}
1768		}
1769		}
1770		}
1771
1772		static int writeConfig(struct grubConfig *cfg, char *outName,
1773		const char *prefix)
1774		{
1775		FILE *out;
1776		struct singleLine *line;
1777		struct singleEntry *entry;
1778		char *tmpOutName;
1779		int needs = MAIN_DEFAULT;
1780		struct stat sb;
1781		int i;
1782
1783		if (!strcmp(outName, "-")) {
1784		out = stdout;
1785		tmpOutName = NULL;
1786		} else {
1787		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1788		char *buf;
1789		int len = 256;
1790		int rc;
1791
1792		/* most likely the symlink is relative, so change our
1793		directory to the dir of the symlink */
1794		char *dir = strdupa(outName);
1795		rc = chdir(dirname(dir));
1796		do {
1797		buf = alloca(len + 1);
1798		rc = readlink(basename(outName), buf, len);
1799		if (rc == len)
1800		len += 256;
1801		} while (rc == len);
1802
1803		if (rc < 0) {
1804		fprintf(stderr,
1805		_
1806		("grubby: error readlink link %s: %s\n"),
1807		outName, strerror(errno));
1808		return 1;
1809		}
1810
1811		outName = buf;
1812		outName[rc] = '\0';
1813		}
1814
1815		tmpOutName = alloca(strlen(outName) + 2);
1816		sprintf(tmpOutName, "%s-", outName);
1817		out = fopen(tmpOutName, "w");
1818		if (!out) {
1819		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1820		tmpOutName, strerror(errno));
1821		return 1;
1822		}
1823
1824		if (!stat(outName, &sb)) {
1825		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1826		fprintf(stderr,
1827		_
1828		("grubby: error setting perms on %s: %s\n"),
1829		tmpOutName, strerror(errno));
1830		fclose(out);
1831		unlink(tmpOutName);
1832		return 1;
1833		}
1834		}
1835		}
1836
1837		line = cfg->theLines;
1838		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1839		while (line) {
1840		if (line->type == LT_SET_VARIABLE && defaultKw &&
1841		line->numElements == 3 &&
1842		!strcmp(line->elements[1].item, defaultKw->key) &&
1843		!is_special_grub2_variable(line->elements[2].item)) {
1844		writeDefault(out, line->indent,
1845		line->elements[0].indent, cfg);
1846		needs &= ~MAIN_DEFAULT;
1847		} else if (line->type == LT_DEFAULT) {
1848		writeDefault(out, line->indent,
1849		line->elements[0].indent, cfg);
1850		needs &= ~MAIN_DEFAULT;
1851		} else if (line->type == LT_FALLBACK) {
1852		if (cfg->fallbackImage > -1)
1853		fprintf(out, "%s%s%s%d\n", line->indent,
1854		line->elements[0].item,
1855		line->elements[0].indent,
1856		cfg->fallbackImage);
1857		} else {
1858		if (lineWrite(out, line, cfg->cfi) == -1) {
1859		fprintf(stderr,
1860		_("grubby: error writing %s: %s\n"),
1861		tmpOutName, strerror(errno));
1862		fclose(out);
1863		unlink(tmpOutName);
1864		return 1;
1865		}
1866		}
1867
1868		line = line->next;
1869		}
1870
1871		if (needs & MAIN_DEFAULT) {
1872		writeDefault(out, cfg->primaryIndent, "=", cfg);
1873		needs &= ~MAIN_DEFAULT;
1874		}
1875
1876		i = 0;
1877		while ((entry = findEntryByIndex(cfg, i++))) {
1878		if (entry->skip)
1879		continue;
1880
1881		line = entry->lines;
1882		while (line) {
1883		if (lineWrite(out, line, cfg->cfi) == -1) {
1884		fprintf(stderr,
1885		_("grubby: error writing %s: %s\n"),
1886		tmpOutName, strerror(errno));
1887		fclose(out);
1888		unlink(tmpOutName);
1889		return 1;
1890		}
1891		line = line->next;
1892		}
1893		}
1894
1895		if (tmpOutName) {
1896		if (rename(tmpOutName, outName)) {
1897		fprintf(stderr,
1898		_("grubby: error moving %s to %s: %s\n"),
1899		tmpOutName, outName, strerror(errno));
1900		unlink(outName);
1901		return 1;
1902		}
1903		}
1904
1905		return 0;
1906		}
1907
1908		static int numEntries(struct grubConfig *cfg)
1909		{
1910		int i = 0;
1911		struct singleEntry *entry;
1912
1913		entry = cfg->entries;
1914		while (entry) {
1915		if (!entry->skip)
1916		i++;
1917		entry = entry->next;
1918		}
1919		return i;
1920		}
1921
1922	static char *findDiskForRoot()	static char *findDiskForRoot()
1923	{	{
1924	int fd;	int fd;
1925	char buf[65536];	char buf[65536];
1926	char *devname;	char *devname;
1927	char *chptr;	char *chptr;
1928	int rc;	int rc;
1929
1930		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1931		fprintf(stderr, "grubby: failed to open %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		return NULL;
1934		}
1935
1936		rc = read(fd, buf, sizeof(buf) - 1);
1937		if (rc <= 0) {
1938		fprintf(stderr, "grubby: failed to read %s: %s\n",
1939		_PATH_MOUNTED, strerror(errno));
1940		close(fd);
1941		return NULL;
1942		}
1943		close(fd);
1944		buf[rc] = '\0';
1945		chptr = buf;
1946
1947	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;
	}
1948
1949	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1950	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++;
	}
1951
1952	/* Return the last / entry found */	/*
1953	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1954	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1955	*chptr = '\0';	* on to the next line.
1956	return strdup(foundanswer);	*/
1957	}	if (*devname != '/') {
1958		chptr = strchr(chptr, '\n');
1959		if (chptr)
1960		chptr++;
1961		continue;
1962		}
1963
1964		/* Seek to the next space */
1965		chptr = strchr(chptr, ' ');
1966		if (!chptr) {
1967		fprintf(stderr, "grubby: error parsing %s: %s\n",
1968		_PATH_MOUNTED, strerror(errno));
1969		return NULL;
1970		}
1971
1972		/*
1973		* The second column of a mtab entry is the mount point, we
1974		* are looking for '/' obviously.
1975		*/
1976		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1977		/* remember the last / entry in mtab */
1978		foundanswer = devname;
1979		}
1980
1981		/* Next line */
1982		chptr = strchr(chptr, '\n');
1983		if (chptr)
1984		chptr++;
1985		}
1986
1987	return NULL;	/* Return the last / entry found */
1988		if (foundanswer) {
1989		chptr = strchr(foundanswer, ' ');
1990		*chptr = '\0';
1991		return strdup(foundanswer);
1992		}
1993
1994		return NULL;
1995	}	}
1996
1997	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
1998	int i;	{
1999	struct singleLine * line;	int i;
2000		struct singleLine *line;
2001
2002		for (line = entry->lines; line; line = line->next) {
2003		log_message(f, "DBG: %s", line->indent);
2004		for (i = 0; i < line->numElements; i++) {
2005		/* Need to handle this, because we strip the quotes from
2006		* menuentry when read it. */
2007		if (line->type == LT_MENUENTRY && i == 1) {
2008		if (!isquote(*line->elements[i].item))
2009		log_message(f, "\'%s\'",
2010		line->elements[i].item);
2011		else
2012		log_message(f, "%s",
2013		line->elements[i].item);
2014		log_message(f, "%s", line->elements[i].indent);
2015
2016	for (line = entry->lines; line; line = line->next) {	continue;
2017	fprintf(stderr, "DBG: %s", line->indent);	}
2018	for (i = 0; i < line->numElements; i++) {
2019	/* Need to handle this, because we strip the quotes from	log_message(f, "%s%s",
2020	* menuentry when read it. */	line->elements[i].item,
2021	if (line->type == LT_MENUENTRY && i == 1) {	line->elements[i].indent);
2022	if(!isquote(*line->elements[i].item))	}
2023	fprintf(stderr, "\'%s\'", line->elements[i].item);	log_message(f, "\n");
	else
	fprintf(stderr, "%s", line->elements[i].item);
	fprintf(stderr, "%s", line->elements[i].indent);
	continue;
	}
	fprintf(stderr, "%s%s",
	line->elements[i].item, line->elements[i].indent);
2024	}	}
	fprintf(stderr, "\n");
	}
2025	}	}
2026
2027	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2028		...)
2029	{	{
2030	va_list argp;	static int once;
2031		va_list argp, argq;
2032
2033	if (!debug)	va_start(argp, fmt);
	return;
2034
2035	va_start(argp, fmt);	va_copy(argq, argp);
2036	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2037	vfprintf(stderr, fmt, argp);	log_time(NULL);
2038	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2039	va_end(argp);	}
2040		log_message(NULL, "DBG: Image entry %s: ",
2041		okay ? "succeeded" : "failed");
2042		log_vmessage(NULL, fmt, argq);
2043
2044		printEntry(entry, NULL);
2045		va_end(argq);
2046
2047		if (!debug) {
2048		once = 1;
2049		va_end(argp);
2050		return;
2051		}
2052
2053		if (okay) {
2054		va_end(argp);
2055		return;
2056		}
2057
2058		if (!once)
2059		log_message(stderr, "DBG: command line: %s\n",
2060		saved_command_line);
2061		once = 1;
2062		fprintf(stderr, "DBG: Image entry failed: ");
2063		vfprintf(stderr, fmt, argp);
2064		printEntry(entry, stderr);
2065		va_end(argp);
2066	}	}
2067
2068	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1552  static int endswith(const char *s, char	Line 2078  static int endswith(const char *s, char
2078	return s[slen] == c;	return s[slen] == c;
2079	}	}
2080
2081	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2082	int skipRemoved, int flags) {	int skipRemoved, int flags)
2083	struct singleLine * line;	{
2084	char * fullName;	struct singleLine *line;
2085	int i;	char *fullName;
2086	char * dev;	int i;
2087	char * rootspec;	char *dev;
2088	char * rootdev;	char *rootspec;
2089		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2090
2091	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2092	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2093	notSuitablePrintf(entry, "no line found\n");	return 0;
2094	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2095
2096	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2097		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2098		entry->lines);
2099		if (!line) {
2100		notSuitablePrintf(entry, 0, "no line found\n");
2101		return 0;
2102		}
2103		if (line->numElements < 2) {
2104		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2105		line->numElements);
2106		return 0;
2107		}
2108
2109	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2110	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2111	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2112	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);
2113
2114	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2115	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2116	} else {	rootspec = getRootSpecifier(line->elements[1].item);
2117	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2118	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	int hasslash = endswith(bootPrefix, '/') ||
2119	*/	beginswith(line->elements[1].item + rootspec_offset, '/');
2120	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2121		line->elements[1].item + rootspec_offset);
2122	/* failed to find one */	if (access(fullName, R_OK)) {
2123	if (!line) {	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	notSuitablePrintf(entry, "no line found\n");
2124	return 0;	return 0;
2125	}	}
2126		for (i = 2; i < line->numElements; i++)
2127		if (!strncasecmp(line->elements[i].item, "root=", 5))
2128		break;
2129		if (i < line->numElements) {
2130		dev = line->elements[i].item + 5;
2131		} else {
2132		/* look for a lilo style LT_ROOT line */
2133		line = getLineByType(LT_ROOT, entry->lines);
2134
2135		if (line && line->numElements >= 2) {
2136		dev = line->elements[1].item;
2137		} else {
2138		/* didn't succeed in finding a LT_ROOT, let's try
2139		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2140		* for the args, so check that too.
2141		*/
2142		line =
2143		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2144		entry->lines);
2145
2146		/* failed to find one */
2147		if (!line) {
2148		notSuitablePrintf(entry, 0, "no line found\n");
2149		return 0;
2150		}
2151
2152	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2153	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2154	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2155	dev = line->elements[i].item + 5;	break;
2156	else {	if (i < line->numElements)
2157	notSuitablePrintf(entry, "no root= entry found\n");	dev = line->elements[i].item + 5;
2158	/* it failed too...  can't find root= */	else {
2159	return 0;	notSuitablePrintf(entry, 0,
2160	}	"no root= entry found\n");
2161		/* it failed too...  can't find root= */
2162		return 0;
2163		}
2164		}
2165	}	}
	}
2166
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2167	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2168		if (!getpathbyspec(dev)) {
2169		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2170		dev);
2171		return 0;
2172		} else
2173		dev = getpathbyspec(dev);
2174
2175	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2176	if (!rootdev) {	if (!rootdev) {
2177	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2178	return 0;	return 0;
2179	}	}
2180
2181	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2182	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2183	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2184	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2185	return 0;	free(rootdev);
2186	}	return 0;
2187		}
2188
2189	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2190	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2191	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2192	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2193	return 0;	free(rootdev);
2194	}	return 0;
2195		}
2196
2197	free(rootdev);	free(rootdev);
2198		notSuitablePrintf(entry, 1, "\n");
2199
2200	return 1;	return 1;
2201	}	}
2202
2203	/* 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
2204	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2205	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2206	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2207	int * index) {	int *index)
2208	struct singleEntry * entry = NULL;	{
2209	struct singleLine * line;	struct singleEntry *entry = NULL;
2210	int i;	struct singleLine *line;
2211	char * chptr;	int i;
2212	char * rootspec = NULL;	char *chptr;
2213	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2214		enum lineType_e checkType = LT_KERNEL;
2215	if (isdigit(*kernel)) {
2216	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2217		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2218
2219		i = 0;
2220		indexVars[i] = strtol(kernel, &chptr, 10);
2221		while (*chptr == ',') {
2222		i++;
2223		kernel = chptr + 1;
2224		indexVars[i] = strtol(kernel, &chptr, 10);
2225		}
2226
2227	i = 0;	if (*chptr) {
2228	indexVars[i] = strtol(kernel, &chptr, 10);	/* can't parse it, bail */
2229	while (*chptr == ',') {	return NULL;
2230	i++;	}
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2231
2232	if (*chptr) {	indexVars[i + 1] = -1;
	/* can't parse it, bail */
	return NULL;
	}
2233
2234	indexVars[i + 1] = -1;	i = 0;
2235		if (index) {
2236	i = 0;	while (i < *index) {
2237	if (index) {	i++;
2238	while (i < *index) i++;	if (indexVars[i] == -1)
2239	if (indexVars[i] == -1) return NULL;	return NULL;
2240	}	}
2241		}
2242
2243	entry = findEntryByIndex(config, indexVars[i]);	entry = findEntryByIndex(config, indexVars[i]);
2244	if (!entry) return NULL;	if (!entry)
2245		return NULL;
2246
2247		line =
2248		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2249		LT_KERNEL_16, entry->lines);
2250		if (!line)
2251		return NULL;
2252
2253		if (index)
2254		*index = indexVars[i];
2255		return entry;
2256		}
2257
2258		if (!strcmp(kernel, "DEFAULT")) {
2259		if (index && *index > config->defaultImage) {
2260		entry = NULL;
2261		} else {
2262		entry = findEntryByIndex(config, config->defaultImage);
2263		if (entry && entry->skip)
2264		entry = NULL;
2265		else if (index)
2266		*index = config->defaultImage;
2267		}
2268		} else if (!strcmp(kernel, "ALL")) {
2269		if (index)
2270		i = *index;
2271		else
2272		i = 0;
2273
2274	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2275	if (!line) return NULL;	if (!entry->skip)
2276		break;
2277		i++;
2278		}
2279
2280	if (index) *index = indexVars[i];	if (entry && index)
2281	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2282	} else {	} else {
2283	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2284	if (entry && entry->skip)	i = *index;
2285	entry = NULL;	else
2286	else if (index)	i = 0;
2287	*index = config->defaultImage;
2288	}	if (!strncmp(kernel, "TITLE=", 6)) {
2289	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2290	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2291	i = *index;	kernel += 6;
2292	else	}
	i = 0;
2293
2294	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2295	if (!entry->skip) break;	entry = entry->next, i++) {
2296	i++;	if (entry->skip)
2297		continue;
2298
2299		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2300		checkType, kernel, entry);
2301
2302		/* check all the lines matching checkType */
2303		for (line = entry->lines; line; line = line->next) {
2304		enum lineType_e ct = checkType;
2305		if (entry->multiboot && checkType == LT_KERNEL)
2306		ct = LT_KERNEL | LT_KERNEL_EFI |
2307		LT_MBMODULE | LT_HYPER |
2308		LT_KERNEL_16;
2309		else if (checkType & LT_KERNEL)
2310		ct = checkType | LT_KERNEL_EFI |
2311		LT_KERNEL_16;
2312		line = getLineByType(ct, line);
2313		if (!line)
2314		break; /* not found in this entry */
2315
2316		if (line && line->type != LT_MENUENTRY &&
2317		line->numElements >= 2) {
2318		rootspec =
2319		getRootSpecifier(line->elements[1].
2320		item);
2321		if (!strcmp
2322		(line->elements[1].item +
2323		((rootspec !=
2324		NULL) ? strlen(rootspec) : 0),
2325		kernel + strlen(prefix)))
2326		break;
2327		}
2328		if (line->type == LT_MENUENTRY &&
2329		!strcmp(line->elements[1].item, kernel))
2330		break;
2331		}
2332
2333		/* make sure this entry has a kernel identifier; this skips
2334		* non-Linux boot entries (could find netbsd etc, though, which is
2335		* unfortunate)
2336		*/
2337		if (line
2338		&& getLineByType(LT_KERNEL | LT_HYPER |
2339		LT_KERNEL_EFI | LT_KERNEL_16,
2340		entry->lines))
2341		break; /* found 'im! */
2342		}
2343
2344		if (index)
2345		*index = i;
2346	}	}
2347
2348	if (entry && index)	return entry;
2349	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2350
2351	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2352	prefix = "";	int *index)
2353	checkType = LT_TITLE|LT_MENUENTRY;	{
2354	kernel += 6;	struct singleEntry *entry;
2355	}	struct singleLine *line;
2356		int i;
2357	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2358	if (entry->skip) continue;
2359		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2360	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2361		continue;
2362	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
2363	for (line = entry->lines; line; line = line->next) {	if (!line)
2364	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	line = getLineByType(LT_MENUENTRY, entry->lines);
2365	LT_KERNEL|LT_MBMODULE|LT_HYPER :	if (!line)
2366	checkType, line);	continue;
2367	if (!line) break;  /* not found in this entry */	newtitle = grub2ExtractTitle(line);
2368		if (!newtitle)
2369	if (line && line->type != LT_MENUENTRY &&	continue;
2370	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)))
2371	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! */
2372	}	}
2373
2374	if (index) *index = i;	if (!entry)
2375	}	return NULL;
2376
2377	return entry;	if (index)
2378		*index = i;
2379		return entry;
2380	}	}
2381
2382	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2383	struct singleEntry * entry;	{
2384		struct singleEntry *entry;
2385
2386	entry = cfg->entries;	entry = cfg->entries;
2387	while (index && entry) {	while (index && entry) {
2388	entry = entry->next;	entry = entry->next;
2389	index--;	index--;
2390	}	}
2391
2392	return entry;	return entry;
2393	}	}
2394
2395	/* 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 1794  struct singleEntry * findEntryByIndex(st	Line 2397  struct singleEntry * findEntryByIndex(st
2397	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2398	* 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,
2399	* bail. */	* bail. */
2400	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2401	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2402	struct singleEntry * entry, * entry2;	{
2403	int index;	struct singleEntry *entry, *entry2;
2404		int index;
2405	if (cfg->defaultImage > -1) {
2406	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2407	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2408	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2409	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2410		if (defTitle) {
2411		int index = 0;
2412		if (isnumber(defTitle)) {
2413		index = atoi(defTitle);
2414		entry = findEntryByIndex(cfg, index);
2415		} else {
2416		entry =
2417		findEntryByTitle(cfg, defTitle,
2418		&index);
2419		}
2420		if (entry
2421		&& suitableImage(entry, prefix, skipRemoved,
2422		flags)) {
2423		cfg->defaultImage = index;
2424		if (indexPtr)
2425		*indexPtr = index;
2426		return entry;
2427		}
2428		}
2429		}
2430		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2431		entry = findEntryByIndex(cfg, cfg->defaultImage);
2432		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2433		if (indexPtr)
2434		*indexPtr = cfg->defaultImage;
2435		return entry;
2436		}
2437	}	}
	}
2438
2439	index = 0;	index = 0;
2440	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2441	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2442	int j;	int j;
2443	for (j = 0; j < index; j++) {	for (j = 0; j < index; j++) {
2444	entry2 = findEntryByIndex(cfg, j);	entry2 = findEntryByIndex(cfg, j);
2445	if (entry2->skip) index--;	if (entry2->skip)
2446	}	index--;
2447	if (indexPtr) *indexPtr = index;	}
2448		if (indexPtr)
2449		*indexPtr = index;
2450
2451	return entry;	return entry;
2452	}	}
2453
2454	index++;	index++;
2455	}	}
2456
2457	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2458		_("grubby fatal error: unable to find a suitable template\n"));
2459
2460	return NULL;	return NULL;
2461	}	}
2462
2463	char * findBootPrefix(void) {	char *findBootPrefix(void)
2464	struct stat sb, sb2;	{
2465		struct stat sb, sb2;
2466
2467	stat("/", &sb);	stat("/", &sb);
2468	#ifdef __ia64__	#ifdef __ia64__
2469	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2470	#else	#else
2471	stat("/boot", &sb2);	stat("/boot", &sb2);
2472	#endif	#endif
2473
2474	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2475	return strdup("");	return strdup("");
2476
2477	#ifdef __ia64__	#ifdef __ia64__
2478	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2479	#else	#else
2480	return strdup("/boot");	return strdup("/boot");
2481	#endif	#endif
2482	}	}
2483
2484	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2485	const char * prefix) {	const char *prefix)
2486	struct singleEntry * entry;	{
2487		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;
	}
2488
2489	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2490	entry->skip = 1;	return;
	}
2491
2492	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2493	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2494	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2495	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2496	int i, j;	entry->skip = 1;
2497		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if ((index >= 0) && config->cfi->defaultIsIndex) {
	if (findEntryByIndex(config, index))
	config->defaultImage = index;
	else
	config->defaultImage = -1;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2498	}	}
	}
2499
2500	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2501	changes */	entry->skip = 1;
	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;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	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;
	}
2502	}	}
2503
2504	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2505	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2506	int j;	const char *prefix, int flags,
2507		int newDefaultBootEntryIndex, int newBootEntryIndex)
2508	if (config->fallbackImage == -1) return;	{
2509		struct singleEntry *bootEntry, *newDefault;
2510	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2511
2512	if (hasNew)	/* handle the two cases where the user explictly picks the default
2513	config->fallbackImage++;	* boot entry index as it would exist post-modification */
	/* 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--;
	}
	}
2514
2515	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* Case 1: user chose to make the latest boot entry the default */
2516	struct singleLine * line;	if (newBootEntryIsDefault) {
2517	char * root = NULL;	config->defaultImage = newBootEntryIndex;
2518	int i;	return;
2519		}
2520	printf("index=%d\n", index);
2521		/* Case 2: user picked an arbitrary index as the default boot entry */
2522	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2523	if (!line) {	&& config->cfi->defaultIsIndex) {
2524	printf("non linux entry\n");	indexToVerify = newDefaultBootEntryIndex;
2525	return;
2526	}	/* user chose to make latest boot entry the default */
2527		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2528		config->defaultImage = newBootEntryIndex;
2529		return;
2530		}
2531
2532	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* the user picks the default index based on the
2533	printf("kernel=%s\n", line->elements[1].item);	* order of the bootloader configuration after
2534	else	* modification; ensure we are checking for the
2535	printf("kernel=%s%s\n", prefix, line->elements[1].item);	* existence of the correct entry */
2536		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2537	if (line->numElements >= 3) {	if (!config->isModified)
2538	printf("args=\"");	indexToVerify--;
2539	i = 2;	}
2540	while (i < line->numElements) {
2541	if (!strncmp(line->elements[i].item, "root=", 5)) {	/* verify the user selected index will exist */
2542	root = line->elements[i].item + 5;	if (findEntryByIndex(config, indexToVerify)) {
2543	} else {	config->defaultImage = newDefaultBootEntryIndex;
2544	printf("%s%s", line->elements[i].item,	} else {
2545	line->elements[i].indent);	config->defaultImage = NO_DEFAULT_ENTRY;
2546	}	}
2547
2548	i++;	return;
2549	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2550
2551	printf("args=\"");	/* handle cases where the index value may shift */
	i = 1;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2552
2553	printf("%s%s", s, line->elements[i].indent);	/* check validity of existing default or first-entry-found
2554		selection */
2555		if (defaultKernelPath) {
2556		/* user requested first-entry-found */
2557		if (!findEntryByPath(config, defaultKernelPath,
2558		prefix, &firstKernelEntryIndex)) {
2559		/* don't change default if can't find match */
2560		config->defaultImage = NO_DEFAULT_ENTRY;
2561		return;
2562	}	}
2563
2564	i++;	config->defaultImage = firstKernelEntryIndex;
	}
2565
2566	s = line->elements[i - 1].indent;	/* this is where we start looking for decrement later */
2567	printf("\"\n");	currentLookupIndex = config->defaultImage;
	}
	}
2568
2569	if (!root) {	if (isAddingBootEntry && !config->isModified &&
2570	line = getLineByType(LT_ROOT, entry->lines);	(newBootEntryIndex < config->defaultImage)) {
2571	if (line && line->numElements >= 2)	/* increment because new entry added before default */
2572	root=line->elements[1].item;	config->defaultImage++;
2573	}	}
2574		} else {
2575		/* use pre-existing default entry */
2576		currentLookupIndex = config->defaultImage;
2577
2578	if (root) {	if (isAddingBootEntry
2579	char * s = alloca(strlen(root) + 1);	&& (newBootEntryIndex <= config->defaultImage)) {
2580		config->defaultImage++;
	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);
	}
2581
2582	line = getLineByType(LT_INITRD, entry->lines);	if (config->isModified) {
2583		currentLookupIndex++;
2584		}
2585		}
2586		}
2587
2588	if (line && line->numElements >= 2) {	/* sanity check - is this entry index valid? */
2589	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	bootEntry = findEntryByIndex(config, currentLookupIndex);
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2590
2591	for (i = 1; i < line->numElements; i++)	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2592	printf("%s%s", line->elements[i].item, line->elements[i].indent);	/* entry is to be skipped or is invalid */
2593	printf("\n");	if (isAddingBootEntry) {
2594	}	config->defaultImage = newBootEntryIndex;
2595		return;
2596		}
2597		newDefault =
2598		findTemplate(config, prefix, &config->defaultImage, 1,
2599		flags);
2600		if (!newDefault) {
2601		config->defaultImage = NO_DEFAULT_ENTRY;
2602		}
2603
2604	line = getLineByType(LT_TITLE, entry->lines);	return;
2605	if (line) {	}
	printf("title=%s\n", line->elements[1].item);
	} else {
	char * title;
	line = getLineByType(LT_MENUENTRY, entry->lines);
	title = grub2ExtractTitle(line);
	if (title)
	printf("title=%s\n", title);
	}
	}
2606
2607	int isSuseSystem(void) {	currentLookupIndex--;
	const char * path;
	const static char default_path[] = "/etc/SuSE-release";
2608
2609	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	/* decrement index by the total number of entries deleted */
	path = default_path;
2610
2611	if (!access(path, R_OK))	for (indexToVerify = currentLookupIndex;
2612	return 1;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	return 0;
	}
2613
2614	int isSuseGrubConf(const char * path) {	bootEntry = findEntryByIndex(config, indexToVerify);
	FILE * grubConf;
	char * line = NULL;
	size_t len = 0, res = 0;
	grubConf = fopen(path, "r");
	if (!grubConf) {
	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);
	return 0;
	}
2615
2616	while ((res = getline(&line, &len, grubConf)) != -1) {	if (bootEntry && bootEntry->skip) {
2617	if (!strncmp(line, "setup", 5)) {	config->defaultImage--;
2618	fclose(grubConf);	}
	free(line);
	return 1;
2619	}	}
	}
	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
	path);
	fclose(grubConf);
	free(line);
	return 0;
2620	}	}
2621
2622	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2623	FILE * grubConf;	{
2624	char * line = NULL;	struct singleEntry *entry, *entry2;
2625	size_t res = 0, len = 0;	int j;
2626
2627	if (!path) return 1;	if (config->fallbackImage == -1)
2628	if (!lbaPtr) return 1;	return;
	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';
	}
2629
2630	if (!strncmp(line, "setup", 5)) {	entry = findEntryByIndex(config, config->fallbackImage);
2631	if (strstr(line, "--force-lba")) {	if (!entry || entry->skip) {
2632	*lbaPtr = 1;	config->fallbackImage = -1;
2633	} else {	return;
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
2634	}	}
	}
2635
2636	free(line);	if (hasNew)
2637	fclose(grubConf);	config->fallbackImage++;
	return 0;
	}
2638
2639	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	/* count the number of entries erased before this one */
2640	FILE * grubConf;	for (j = 0; j < config->fallbackImage; j++) {
2641	char * line = NULL;	entry2 = findEntryByIndex(config, j);
2642	size_t res = 0, len = 0;	if (entry2->skip)
2643	char * lastParamPtr = NULL;	config->fallbackImage--;
	char * secLastParamPtr = NULL;
	char installDeviceNumber = '\0';
	char * bounds = NULL;
	if (!path) return 1;
	if (!devicePtr) return 1;
	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';
2644	}	}
2645		}
2646
2647	lastParamPtr = bounds = line + res;	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2648		{
2649	/* Last parameter in grub may be an optional IMAGE_DEVICE */	struct singleLine *line;
2650	while (!isspace(*lastParamPtr))	char *root = NULL;
2651	lastParamPtr--;	int i;
2652	lastParamPtr++;	int j;
2653
2654	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2655
2656	if (lastParamPtr + 3 > bounds) {	line =
2657	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2658	fclose(grubConf);	entry->lines);
2659	free(line);	if (!line) {
2660	return 1;	printf("non linux entry\n");
2661		return;
2662	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2663
2664	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2665	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2666	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2667	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2668	while (!isspace(*secLastParamPtr))
2669	secLastParamPtr--;	if (line->numElements >= 3) {
2670	secLastParamPtr++;	printf("args=\"");
2671		i = 2;
2672	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2673	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2674	fclose(grubConf);	root = line->elements[i].item + 5;
2675	free(line);	} else {
2676	return 1;	printf("%s%s", line->elements[i].item,
2677	}	line->elements[i].indent);
2678	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2679	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2680	secLastParamPtr += 3;	i++;
2681	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2682	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
2683	} else {	} else {
2684	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2685		if (line) {
2686		char *s;
2687
2688		printf("args=\"");
2689		i = 1;
2690		while (i < line->numElements) {
2691		if (!strncmp
2692		(line->elements[i].item, "root=", 5)) {
2693		root = line->elements[i].item + 5;
2694		} else {
2695		s = line->elements[i].item;
2696
2697		printf("%s%s", s,
2698		line->elements[i].indent);
2699		}
2700
2701		i++;
2702		}
2703
2704		s = line->elements[i - 1].indent;
2705		printf("\"\n");
2706		}
2707	}	}
2708
2709	*devicePtr = malloc(6);	if (!root) {
2710	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2711	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2712	fclose(grubConf);	root = line->elements[1].item;
2713	free(line);	}
	return 0;
	}
2714
2715	free(line);	if (root) {
2716	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;
2717
2718	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2719	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2720	continue;	s[strlen(s) - 1] = '\0';
2721		/* make sure the root doesn't have a trailing " */
2722	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';
2723	}	}
2724
2725	devicePtr = line;	line =
2726	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2727		entry->lines);
2728
2729	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2730	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2731	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2732		else
2733		printf("initrd=%s", prefix);
2734
2735	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2736	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2737	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2738	devicePtr++;	printf("\n");
2739		}
2740
2741	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2742	break;	if (line) {
2743		printf("title=%s\n", line->elements[1].item);
2744		} else {
2745		char *title;
2746		line = getLineByType(LT_MENUENTRY, entry->lines);
2747		if (line) {
2748		title = grub2ExtractTitle(line);
2749		if (title)
2750		printf("title=%s\n", title);
2751		}
2752	}	}
	}
2753
2754	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2755	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2756	return 0;	if (!strncmp
2757		(prefix, line->elements[1].item, strlen(prefix)))
2758		printf("mbmodule%d=", j);
2759		else
2760		printf("mbmodule%d=%s", j, prefix);
2761
2762		for (i = 1; i < line->numElements; i++)
2763		printf("%s%s", line->elements[i].item,
2764		line->elements[i].indent);
2765		printf("\n");
2766		j++;
2767		}
2768		}
2769	}	}
2770
2771	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2772	char * grubDevice;	{
2773		const char *path;
2774		const static char default_path[] = "/etc/SuSE-release";
2775
2776	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2777	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);
2778
2779	free(grubDevice);	if (!access(path, R_OK))
2780	return 0;	return 1;
2781		return 0;
2782	}	}
2783
2784	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2785	/*	{
2786	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2787	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2788	* grub on that system.	size_t len = 0, res = 0;
2789	*/
2790	const char * path;	grubConf = fopen(path, "r");
2791	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2792		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2793	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2794	path = default_path;	return 0;
2795		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2796
2797	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2798	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2799	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2800	}	free(line);
2801		return 1;
2802		}
2803		}
2804
2805	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2806		path);
2807
2808		fclose(grubConf);
2809		free(line);
2810		return 0;
2811	}	}
2812
2813	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2814	FILE * in;	{
2815	char buf[1024];	FILE *grubConf;
2816	char * chptr;	char *line = NULL;
2817	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);
	}
2818
2819	fclose(in);	if (!path)
2820		return 1;
2821		if (!lbaPtr)
2822		return 1;
2823
2824	return 0;	grubConf = fopen(path, "r");
2825	}	if (!grubConf)
2826		return 1;
2827
2828		while ((res = getline(&line, &len, grubConf)) != -1) {
2829		if (line[res - 1] == '\n')
2830		line[res - 1] = '\0';
2831		else if (len > res)
2832		line[res] = '\0';
2833		else {
2834		line = realloc(line, res + 1);
2835		line[res] = '\0';
2836		}
2837
2838	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2839	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2840	int lba;	*lbaPtr = 1;
2841		} else {
2842	if (isSuseSystem()) {	*lbaPtr = 0;
2843	if (parseSuseGrubConf(&lba, &boot)) {	}
2844	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2845	return;	break;
2846	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2847	}	}
	}
2848
2849	if (lba) printf("lba\n");	free(line);
2850	if (boot) {	fclose(grubConf);
2851	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2852	}	}
2853
2854	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2855	const char * prefix) {	{
2856	int i = 0;	FILE *grubConf;
2857	struct singleEntry * entry;	char *line = NULL;
2858	struct singleLine * line;	size_t res = 0, len = 0;
2859		char *lastParamPtr = NULL;
2860	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2861	if (!entry) {	char installDeviceNumber = '\0';
2862	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
2863
2864	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (!path)
2865	be a better way */	return 1;
2866	if (config->cfi == &grubConfigType) {	if (!devicePtr)
2867	dumpSysconfigGrub();	return 1;
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2868
2869	line = getLineByType(LT_LBA, config->theLines);	grubConf = fopen(path, "r");
2870	if (line) printf("lba\n");	if (!grubConf)
2871	}	return 1;
2872
2873	displayEntry(entry, prefix, i);	while ((res = getline(&line, &len, grubConf)) != -1) {
2874		if (strncmp(line, "setup", 5))
2875		continue;
2876
2877		if (line[res - 1] == '\n')
2878		line[res - 1] = '\0';
2879		else if (len > res)
2880		line[res] = '\0';
2881		else {
2882		line = realloc(line, res + 1);
2883		line[res] = '\0';
2884		}
2885
2886	i++;	lastParamPtr = bounds = line + res;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
2887
2888	return 0;	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2889	}	while (!isspace(*lastParamPtr))
2890		lastParamPtr--;
2891		lastParamPtr++;
2892
2893		secLastParamPtr = lastParamPtr - 2;
2894		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2895
2896		if (lastParamPtr + 3 > bounds) {
2897		dbgPrintf("lastParamPtr going over boundary");
2898		fclose(grubConf);
2899		free(line);
2900		return 1;
2901		}
2902		if (!strncmp(lastParamPtr, "(hd", 3))
2903		lastParamPtr += 3;
2904		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2905
2906		/*
2907		* Second last parameter will decide wether last parameter is
2908		* an IMAGE_DEVICE or INSTALL_DEVICE
2909		*/
2910		while (!isspace(*secLastParamPtr))
2911		secLastParamPtr--;
2912		secLastParamPtr++;
2913
2914		if (secLastParamPtr + 3 > bounds) {
2915		dbgPrintf("secLastParamPtr going over boundary");
2916		fclose(grubConf);
2917		free(line);
2918		return 1;
2919		}
2920		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2921		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2922		secLastParamPtr += 3;
2923		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2924		installDeviceNumber = *secLastParamPtr;
2925		} else {
2926		installDeviceNumber = *lastParamPtr;
2927		}
2928
2929	struct singleLine * addLineTmpl(struct singleEntry * entry,	*devicePtr = malloc(6);
2930	struct singleLine * tmplLine,	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2931	struct singleLine * prevLine,	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2932	const char * val,	fclose(grubConf);
2933	struct configFileInfo * cfi)	free(line);
2934	{	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);
	}
2935	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
2936
2937	if (!entry->lines) {	free(line);
2938	/* first one on the list */	fclose(grubConf);
2939	entry->lines = newLine;	return 1;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
2940	}	}
2941
2942	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2943	struct singleLine *  addLine(struct singleEntry * entry,	{
2944	struct configFileInfo * cfi,	FILE *deviceMap;
2945	enum lineType_e type, char * defaultIndent,	char *line = NULL;
2946	const char * val) {	size_t res = 0, len = 0;
2947	struct singleLine * line, * prev;	char *devicePtr;
2948	struct keywordTypes * kw;	char *bounds = NULL;
2949	struct singleLine tmpl;	const char *path;
2950		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 = "";
	}
	}
2951
2952	/* The last non-empty line gives us the indention to us and the line	if (!device)
2953	to insert after. Note that comments are considered empty lines, which	return 1;
2954	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
2955	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;
	}
2956
2957	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2958	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;
	}
2959
2960	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
2961	}	deviceMap = fopen(path, "r");
2962		if (!deviceMap)
2963		return 1;
2964
2965	void removeLine(struct singleEntry * entry, struct singleLine * line) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
2966	struct singleLine * prev;	if (!strncmp(line, "#", 1))
2967	int i;	continue;
2968
2969		if (line[res - 1] == '\n')
2970		line[res - 1] = '\0';
2971		else if (len > res)
2972		line[res] = '\0';
2973		else {
2974		line = realloc(line, res + 1);
2975		line[res] = '\0';
2976		}
2977
2978	for (i = 0; i < line->numElements; i++) {	devicePtr = line;
2979	free(line->elements[i].item);	bounds = line + res;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2980
2981	if (line == entry->lines) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2982	entry->lines = line->next;	devicePtr++;
2983	} else {	dbgPrintf("device: %s\n", devicePtr);
2984	prev = entry->lines;
2985	while (prev->next != line) prev = prev->next;	if (!strncmp(devicePtr, device, strlen(device))) {
2986	prev->next = line->next;	devicePtr += strlen(device);
2987	}	while (isspace(*devicePtr)
2988		&& ((devicePtr + 1) <= bounds))
2989		devicePtr++;
2990
2991		*bootPtr = strdup(devicePtr);
2992		break;
2993		}
2994		}
2995
2996	free(line);	free(line);
2997		fclose(deviceMap);
2998		return 0;
2999	}	}
3000
3001	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3002	{	{
3003	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] = ' ';
	}
3004
3005	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3006	/* move the end-of-line forward */	dbgPrintf("error looking for grub installation device\n");
3007	line->elements[insertHere].indent =	else
3008	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);
	}
3009
3010	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3011		dbgPrintf("error looking for grub boot device\n");
3012		else
3013		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3014
3015	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3016	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3017	}	}
3018
3019	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3020	int i;	{
3021		/*
3022	/* sanity check */	* This SuSE grub configuration file at this location is not your
3023	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3024		* used to setup grub on that system.
3025	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3026	removeHere, line->elements[removeHere].item);	const char *path;
3027		const static char default_path[] = "/etc/grub.conf";
3028
3029	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3030		path = default_path;
3031
3032	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3033	/* 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);
	}
3034
3035	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3036	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3037	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3038		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;
3039	}	}
	}
3040
3041	if (!removeArgs) {	if (bootPtr) {
3042	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3043	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3044	}	}
	}
	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3045
3046	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	return 0;
3047	&& !multibootArgs);	}
3048
3049	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3050		{
3051		FILE *in;
3052		char buf[1024];
3053		char *chptr;
3054		char *start;
3055		char *param;
3056
3057	if (multibootArgs && !entry->multiboot)	in = fopen("/etc/sysconfig/grub", "r");
3058	continue;	if (!in)
3059		return 1;
3060
3061	/* Determine where to put the args.  If this config supports	if (lbaPtr)
3062	* LT_KERNELARGS, use that.  Otherwise use	*lbaPtr = 0;
3063	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	if (bootPtr)
3064	*/	*bootPtr = NULL;
3065	if (useKernelArgs) {
3066	line = getLineByType(LT_KERNELARGS, entry->lines);	while (fgets(buf, sizeof(buf), in)) {
3067	if (!line) {	start = buf;
3068	/* no LT_KERNELARGS, need to add it */	while (isspace(*start))
3069	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	start++;
3070	cfg->secondaryIndent, NULL);	if (*start == '#')
3071	}	continue;
3072	firstElement = 1;
3073		chptr = strchr(start, '=');
3074	} else if (multibootArgs) {	if (!chptr)
3075	line = getLineByType(LT_HYPER, entry->lines);	continue;
3076	if (!line) {	chptr--;
3077	/* a multiboot entry without LT_HYPER? */	while (*chptr && isspace(*chptr))
3078	continue;	chptr--;
3079	}	chptr++;
3080	firstElement = 2;	*chptr = '\0';
3081
3082		param = chptr + 1;
3083		while (*param && isspace(*param))
3084		param++;
3085		if (*param == '=') {
3086		param++;
3087		while (*param && isspace(*param))
3088		param++;
3089		}
3090
3091	} else {	chptr = param;
3092	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);	while (*chptr && !isspace(*chptr))
3093	if (!line) {	chptr++;
3094	/* no LT_KERNEL or LT_MBMODULE in this entry? */	*chptr = '\0';
3095	continue;
3096	}	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3097	firstElement = 2;	*lbaPtr = 1;
3098		else if (!strcmp(start, "boot") && bootPtr)
3099		*bootPtr = strdup(param);
3100	}	}
3101
3102	/* handle the elilo case which does:	fclose(in);
	*   append="hypervisor args -- kernel args"
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
3103
3104	if (i < line->numElements && doreplace) {	return 0;
3105	/* direct replacement */	}
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
3106
3107	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	void dumpSysconfigGrub(void)
3108	/* root= replacement */	{
3109	rootLine = getLineByType(LT_ROOT, entry->lines);	char *boot = NULL;
3110	if (rootLine) {	int lba;
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
	}
	}
3111
3112	else {	if (isSuseSystem()) {
3113	/* insert/append */	if (parseSuseGrubConf(&lba, &boot)) {
3114	insertElement(line, *arg, i, cfg->cfi);	free(boot);
3115	usedElements = realloc(usedElements, line->numElements *	return;
3116	sizeof(*usedElements));	}
3117	memmove(&usedElements[i + 1], &usedElements[i],	} else {
3118	line->numElements - i - 1);	if (parseSysconfigGrub(&lba, &boot)) {
3119	usedElements[i] = 1;	free(boot);
3120		return;
3121	/* 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);
3122	}	}
	}
	free(newArgs);
	free(oldArgs);
3123
3124	return 0;	if (lba)
3125		printf("lba\n");
3126		if (boot) {
3127		printf("boot=%s\n", boot);
3128		free(boot);
3129		}
3130	}	}
3131
3132	int updateImage(struct grubConfig * cfg, const char * image,	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3133	const char * prefix, const char * addArgs,	{
3134	const char * removeArgs,	int i = 0;
3135	const char * addMBArgs, const char * removeMBArgs) {	struct singleEntry *entry;
3136	int rc = 0;	struct singleLine *line;
3137
3138	if (!image) return rc;	entry = findEntryByPath(config, kernel, prefix, &i);
3139		if (!entry) {
3140	/* update the main args first... */	fprintf(stderr, _("grubby: kernel not found\n"));
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
3141	return 1;	return 1;
3142	}	}
3143
3144	break;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3145	}	be a better way */
3146		if (config->cfi == &grubConfigType) {
3147		dumpSysconfigGrub();
3148		} else {
3149		line = getLineByType(LT_BOOT, config->theLines);
3150		if (line && line->numElements >= 1) {
3151		printf("boot=%s\n", line->elements[1].item);
3152		}
3153
3154	return 0;	line = getLineByType(LT_LBA, config->theLines);
3155	}	if (line)
3156		printf("lba\n");
3157		}
3158
3159	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	displayEntry(entry, prefix, i);
	int fd;
	unsigned char bootSect[512];
	int offset;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3160
3161	if (read(fd, bootSect, 512) != 512) {	i++;
3162	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3163	device, strerror(errno));	displayEntry(entry, prefix, i);
3164	return 1;	i++;
3165	}	}
	close(fd);
3166
	/* first three bytes should match, a jmp short should be in there */
	if (memcmp(boot, bootSect, 3))
3167	return 0;	return 0;
3168		}
3169
3170	if (boot[1] == JMP_SHORT_OPCODE) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3171	offset = boot[2] + 2;	struct singleLine *tmplLine,
3172	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	struct singleLine *prevLine,
3173	offset = (boot[3] << 8) + boot[2] + 2;	const char *val, struct configFileInfo *cfi)
3174	} else if (boot[0] == JMP_SHORT_OPCODE) {	{
3175	offset = boot[1] + 2;	struct singleLine *newLine = lineDup(tmplLine);
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
3176
3177	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (isEfi && cfi == &grub2ConfigType) {
3178	return 0;	enum lineType_e old = newLine->type;
3179		newLine->type = preferredLineType(newLine->type, cfi);
3180		if (old != newLine->type)
3181		newLine->elements[0].item =
3182		getKeyByType(newLine->type, cfi);
3183		}
3184
3185	return 2;	if (val) {
3186	}	/* override the inherited value with our own.
3187		* This is a little weak because it only applies to elements[1]
3188		*/
3189		if (newLine->numElements > 1)
3190		removeElement(newLine, 1);
3191		insertElement(newLine, val, 1, cfi);
3192
3193		/* but try to keep the rootspec from the template... sigh */
3194		if (tmplLine->
3195		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3196		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3197		LT_INITRD_16)) {
3198		char *rootspec =
3199		getRootSpecifier(tmplLine->elements[1].item);
3200		if (rootspec != NULL) {
3201		free(newLine->elements[1].item);
3202		newLine->elements[1].item =
3203		sdupprintf("%s%s", rootspec, val);
3204		}
3205		}
3206		}
3207
3208	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3209	int fd;	newLine->elements[0].item : "");
	char buf[65536];
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
3210
3211	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (!entry->lines) {
3212	*raw* devices listed in there */	/* first one on the list */
3213		entry->lines = newLine;
3214		} else if (prevLine) {
3215		/* add after prevLine */
3216		newLine->next = prevLine->next;
3217		prevLine->next = newLine;
3218		}
3219
3220	if (!strncmp(mdDev, "/dev/", 5))	return newLine;
3221	mdDev += 5;	}
3222
3223	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	/* val may be NULL */
3224	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	struct singleLine *addLine(struct singleEntry *entry,
3225	strerror(errno));	struct configFileInfo *cfi,
3226	return 2;	enum lineType_e type, char *defaultIndent,
3227	}	const char *val)
3228		{
3229		struct singleLine *line, *prev;
3230		struct keywordTypes *kw;
3231		struct singleLine tmpl;
3232
3233	rc = read(fd, buf, sizeof(buf) - 1);	/* NB: This function shouldn't allocate items on the heap, rather on
3234	if (rc < 0 || rc == (sizeof(buf) - 1)) {	* the stack since it calls addLineTmpl which will make copies.
3235	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	*/
3236	strerror(errno));	if (type == LT_TITLE && cfi->titleBracketed) {
3237	close(fd);	/* we're doing a bracketed title (zipl) */
3238	return 2;	tmpl.type = type;
3239	}	tmpl.numElements = 1;
3240	close(fd);	tmpl.elements = alloca(sizeof(*tmpl.elements));
3241	buf[rc] = '\0';	tmpl.elements[0].item = alloca(strlen(val) + 3);
3242		sprintf(tmpl.elements[0].item, "[%s]", val);
3243		tmpl.elements[0].indent = "";
3244		val = NULL;
3245		} else if (type == LT_MENUENTRY) {
3246		char *lineend = "--class gnu-linux --class gnu --class os {";
3247		if (!val) {
3248		fprintf(stderr,
3249		"Line type LT_MENUENTRY requires a value\n");
3250		abort();
3251		}
3252		kw = getKeywordByType(type, cfi);
3253		if (!kw) {
3254		fprintf(stderr,
3255		"Looking up keyword for unknown type %d\n",
3256		type);
3257		abort();
3258		}
3259		tmpl.indent = "";
3260		tmpl.type = type;
3261		tmpl.numElements = 3;
3262		tmpl.elements =
3263		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3264		tmpl.elements[0].item = kw->key;
3265		tmpl.elements[0].indent = alloca(2);
3266		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3267		tmpl.elements[1].item = (char *)val;
3268		tmpl.elements[1].indent = alloca(2);
3269		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3270		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3271		strcpy(tmpl.elements[2].item, lineend);
3272		tmpl.elements[2].indent = "";
3273		} else {
3274		kw = getKeywordByType(type, cfi);
3275		if (!kw) {
3276		fprintf(stderr,
3277		"Looking up keyword for unknown type %d\n",
3278		type);
3279		abort();
3280		}
3281		tmpl.type = type;
3282		tmpl.numElements = val ? 2 : 1;
3283		tmpl.elements =
3284		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3285		tmpl.elements[0].item = kw->key;
3286		tmpl.elements[0].indent = alloca(2);
3287		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3288		if (val) {
3289		tmpl.elements[1].item = (char *)val;
3290		tmpl.elements[1].indent = "";
3291		}
3292		}
3293
3294	chptr = buf;	/* The last non-empty line gives us the indention to us and the line
3295	while (*chptr) {	* to insert after. Note that comments are considered empty lines,
3296	end = strchr(chptr, '\n');	* which may not be ideal? If there are no lines or we are looking at
3297	if (!end) break;	* the first line, we use defaultIndent (the first line is normally
3298	*end = '\0';	* indented differently from the rest) */
3299		for (line = entry->lines, prev = NULL; line; line = line->next) {
3300		if (line->numElements)
3301		prev = line;
3302		/* fall back on the last line if prev isn't otherwise set */
3303		if (!line->next && !prev)
3304		prev = line;
3305		}
3306
3307		struct singleLine *menuEntry;
3308		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3309		if (tmpl.type == LT_ENTRY_END) {
3310		if (menuEntry)
3311		tmpl.indent = menuEntry->indent;
3312		else
3313		tmpl.indent = defaultIndent ? : "";
3314		} else if (tmpl.type != LT_MENUENTRY) {
3315		if (menuEntry)
3316		tmpl.indent = "\t";
3317		else if (prev == entry->lines)
3318		tmpl.indent = defaultIndent ? : "";
3319		else
3320		tmpl.indent = prev->indent;
3321		}
3322
3323	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3324	chptr[strlen(mdDev)] == ' ') {	}
3325
3326	/* found the device */	void removeLine(struct singleEntry *entry, struct singleLine *line)
3327	while (*chptr && *chptr != ':') chptr++;	{
3328	chptr++;	struct singleLine *prev;
3329	while (*chptr && isspace(*chptr)) chptr++;	int i;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3330
3331	/*  we're good to go */	for (i = 0; i < line->numElements; i++) {
3332	return 2;	free(line->elements[i].item);
3333		free(line->elements[i].indent);
3334	}	}
3335		free(line->elements);
3336		free(line->indent);
3337
3338	chptr = end + 1;	if (line == entry->lines) {
3339	}	entry->lines = line->next;
3340		} else {
3341		prev = entry->lines;
3342		while (prev->next != line)
3343		prev = prev->next;
3344		prev->next = line->next;
3345		}
3346
3347	fprintf(stderr,	free(line);
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3348	}	}
3349
3350	int checkForLilo(struct grubConfig * config) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3351	int fd;	{
3352	unsigned char boot[512];	struct singleLine newLine = {
3353	struct singleLine * line;	.indent = tmplLine->indent,
3354		.type = tmplLine->type,
3355	for (line = config->theLines; line; line = line->next)	.next = tmplLine->next,
3356	if (line->type == LT_BOOT) break;	};
3357		int firstQuotedItem = -1;
3358	if (!line) {	int quoteLen = 0;
3359	fprintf(stderr,	int j;
3360	_("grubby: no boot line found in lilo configuration\n"));	int element = 0;
3361	return 1;	char *c;
	}
3362
3363	if (line->numElements != 2) return 1;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3364		strcpy(c, tmplLine->elements[0].item);
3365		insertElement(&newLine, c, element++, cfi);
3366		free(c);
3367		c = NULL;
3368
3369		for (j = 1; j < tmplLine->numElements; j++) {
3370		if (firstQuotedItem == -1) {
3371		quoteLen += strlen(tmplLine->elements[j].item);
3372
3373		if (isquote(tmplLine->elements[j].item[0])) {
3374		firstQuotedItem = j;
3375		quoteLen +=
3376		strlen(tmplLine->elements[j].indent);
3377		} else {
3378		c = malloc(quoteLen + 1);
3379		strcpy(c, tmplLine->elements[j].item);
3380		insertElement(&newLine, c, element++, cfi);
3381		free(c);
3382		quoteLen = 0;
3383		}
3384		} else {
3385		int itemlen = strlen(tmplLine->elements[j].item);
3386		quoteLen += itemlen;
3387		quoteLen += strlen(tmplLine->elements[j].indent);
3388
3389		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3390		c = malloc(quoteLen + 1);
3391		c[0] = '\0';
3392		for (int i = firstQuotedItem; i < j + 1; i++) {
3393		strcat(c, tmplLine->elements[i].item);
3394		strcat(c, tmplLine->elements[i].indent);
3395		}
3396		insertElement(&newLine, c, element++, cfi);
3397		free(c);
3398
3399	fd = open("/boot/boot.b", O_RDONLY);	firstQuotedItem = -1;
3400	if (fd < 0) {	quoteLen = 0;
3401	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	}
3402	"/boot/boot.b", strerror(errno));	}
3403	return 1;	}
3404	}	while (tmplLine->numElements)
3405		removeElement(tmplLine, 0);
3406		if (tmplLine->elements)
3407		free(tmplLine->elements);
3408
3409		tmplLine->numElements = newLine.numElements;
3410		tmplLine->elements = newLine.elements;
3411		}
3412
3413	if (read(fd, boot, 512) != 512) {	static void insertElement(struct singleLine *line,
3414	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *item, int insertHere,
3415	"/boot/boot.b", strerror(errno));	struct configFileInfo *cfi)
3416	return 1;	{
3417	}	struct keywordTypes *kw;
3418	close(fd);	char indent[2] = "";
3419
3420	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* sanity check */
3421	return checkLiloOnRaid(line->elements[1].item, boot);	if (insertHere > line->numElements) {
3422		dbgPrintf
3423		("insertElement() adjusting insertHere from %d to %d\n",
3424		insertHere, line->numElements);
3425		insertHere = line->numElements;
3426		}
3427
3428		line->elements = realloc(line->elements, (line->numElements + 1) *
3429		sizeof(*line->elements));
3430		memmove(&line->elements[insertHere + 1],
3431		&line->elements[insertHere],
3432		(line->numElements - insertHere) * sizeof(*line->elements));
3433		line->elements[insertHere].item = strdup(item);
3434
3435		kw = getKeywordByType(line->type, cfi);
3436
3437		if (line->numElements == 0) {
3438		indent[0] = '\0';
3439		} else if (insertHere == 0) {
3440		indent[0] = kw->nextChar;
3441		} else if (kw->separatorChar != '\0') {
3442		indent[0] = kw->separatorChar;
3443		} else {
3444		indent[0] = ' ';
3445		}
3446
3447	return checkDeviceBootloader(line->elements[1].item, boot);	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3448	}	/* move the end-of-line forward */
3449		line->elements[insertHere].indent =
3450		line->elements[insertHere - 1].indent;
3451		line->elements[insertHere - 1].indent = strdup(indent);
3452		} else {
3453		line->elements[insertHere].indent = strdup(indent);
3454		}
3455
3456	int checkForGrub2(struct grubConfig * config) {	line->numElements++;
	if (!access("/etc/grub.d/", R_OK))
	return 2;
3457
3458	return 1;	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3459		line->elements[0].item,
3460		line->elements[insertHere].item,
3461		line->elements[insertHere].indent, insertHere);
3462	}	}
3463
3464	int checkForGrub(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3465	int fd;	{
3466	unsigned char bootSect[512];	int i;
	char * boot;
	int onSuse = isSuseSystem();
3467
3468		/* sanity check */
3469		if (removeHere >= line->numElements)
3470		return;
3471
3472		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3473		removeHere, line->elements[removeHere].item);
3474
3475		free(line->elements[removeHere].item);
3476
3477		if (removeHere > 1) {
3478		/* previous argument gets this argument's post-indentation */
3479		free(line->elements[removeHere - 1].indent);
3480		line->elements[removeHere - 1].indent =
3481		line->elements[removeHere].indent;
3482		} else {
3483		free(line->elements[removeHere].indent);
3484		}
3485
3486	if (onSuse) {	/* now collapse the array, but don't bother to realloc smaller */
3487	if (parseSuseGrubConf(NULL, &boot))	for (i = removeHere; i < line->numElements - 1; i++)
3488	return 0;	line->elements[i] = line->elements[i + 1];
	} else {
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
	}
3489
3490	/* assume grub is not installed -- not an error condition */	line->numElements--;
3491	if (!boot)	}
	return 0;
3492
3493	fd = open("/boot/grub/stage1", O_RDONLY);	int argMatch(const char *one, const char *two)
3494	if (fd < 0)	{
3495	/* this doesn't exist if grub hasn't been installed */	char *first, *second;
3496	return 0;	char *chptr;
3497
3498	if (read(fd, bootSect, 512) != 512) {	first = strcpy(alloca(strlen(one) + 1), one);
3499	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	second = strcpy(alloca(strlen(two) + 1), two);
	"/boot/grub/stage1", strerror(errno));
	close(fd);
	return 1;
	}
	close(fd);
3500
3501	/* The more elaborate checks do not work on SuSE. The checks done	chptr = strchr(first, '=');
3502	* seem to be reasonble (at least for now), so just return success	if (chptr)
3503	*/	*chptr = '\0';
3504	if (onSuse)
3505	return 2;	chptr = strchr(second, '=');
3506		if (chptr)
3507		*chptr = '\0';
3508
3509	return checkDeviceBootloader(boot, bootSect);	return strcmp(first, second);
3510	}	}
3511
3512	int checkForExtLinux(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3513	int fd;	const char *prefix, const char *addArgs,
3514	unsigned char bootSect[512];	const char *removeArgs, int multibootArgs)
3515	char * boot;	{
3516	char executable[] = "/boot/extlinux/extlinux";	struct singleEntry *entry;
3517		struct singleLine *line, *rootLine;
3518		int index = 0;
3519		int i, k;
3520		const char **newArgs, **oldArgs;
3521		const char **arg;
3522		int useKernelArgs, useRoot;
3523		int firstElement;
3524		int *usedElements;
3525		int doreplace;
3526
3527	printf("entered: checkForExtLinux()\n");	if (!image)
3528		return 0;
3529
3530	if (parseSysconfigGrub(NULL, &boot))	if (!addArgs) {
3531	return 0;	newArgs = malloc(sizeof(*newArgs));
3532		*newArgs = NULL;
3533		} else {
3534		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3535		fprintf(stderr,
3536		_("grubby: error separating arguments '%s'\n"),
3537		addArgs);
3538		return 1;
3539		}
3540		}
3541
3542		if (!removeArgs) {
3543		oldArgs = malloc(sizeof(*oldArgs));
3544		*oldArgs = NULL;
3545		} else {
3546		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3547		fprintf(stderr,
3548		_("grubby: error separating arguments '%s'\n"),
3549		removeArgs);
3550		free(newArgs);
3551		return 1;
3552		}
3553		}
3554
3555		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3556		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3557
3558		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3559		&& !multibootArgs);
3560
3561		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3562
3563		if (multibootArgs && !entry->multiboot)
3564		continue;
3565
3566		/* Determine where to put the args.  If this config supports
3567		* LT_KERNELARGS, use that.  Otherwise use
3568		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3569		*/
3570		if (useKernelArgs) {
3571		line = getLineByType(LT_KERNELARGS, entry->lines);
3572		if (!line) {
3573		/* no LT_KERNELARGS, need to add it */
3574		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3575		cfg->secondaryIndent, NULL);
3576		}
3577		firstElement = 1;
3578
3579		} else if (multibootArgs) {
3580		line = getLineByType(LT_HYPER, entry->lines);
3581		if (!line) {
3582		/* a multiboot entry without LT_HYPER? */
3583		continue;
3584		}
3585		firstElement = 2;
3586
3587		} else {
3588		line =
3589		getLineByType(LT_KERNEL | LT_MBMODULE |
3590		LT_KERNEL_EFI | LT_KERNEL_16,
3591		entry->lines);
3592		if (!line) {
3593		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3594		continue;
3595		}
3596		firstElement = 2;
3597		}
3598
3599		/* handle the elilo case which does:
3600		*   append="hypervisor args -- kernel args"
3601		*/
3602		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3603		/* this is a multiboot entry, make sure there's
3604		* -- on the args line
3605		*/
3606		for (i = firstElement; i < line->numElements; i++) {
3607		if (!strcmp(line->elements[i].item, "--"))
3608		break;
3609		}
3610		if (i == line->numElements) {
3611		/* assume all existing args are kernel args,
3612		* prepend -- to make it official
3613		*/
3614		insertElement(line, "--", firstElement,
3615		cfg->cfi);
3616		i = firstElement;
3617		}
3618		if (!multibootArgs) {
3619		/* kernel args start after the -- */
3620		firstElement = i + 1;
3621		}
3622		} else if (cfg->cfi->mbConcatArgs) {
3623		/* this is a non-multiboot entry, remove hyper args */
3624		for (i = firstElement; i < line->numElements; i++) {
3625		if (!strcmp(line->elements[i].item, "--"))
3626		break;
3627		}
3628		if (i < line->numElements) {
3629		/* remove args up to -- */
3630		while (strcmp
3631		(line->elements[firstElement].item,
3632		"--"))
3633		removeElement(line, firstElement);
3634		/* remove -- */
3635		removeElement(line, firstElement);
3636		}
3637		}
3638
3639		usedElements = calloc(line->numElements, sizeof(*usedElements));
3640
3641		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3642
3643		doreplace = 1;
3644		for (i = firstElement; i < line->numElements; i++) {
3645		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3646		!strcmp(line->elements[i].item, "--")) {
3647		/* reached the end of hyper args, insert here */
3648		doreplace = 0;
3649		break;
3650		}
3651		if (usedElements[i])
3652		continue;
3653		if (!argMatch(line->elements[i].item, *arg)) {
3654		usedElements[i] = 1;
3655		break;
3656		}
3657		}
3658
3659		if (i < line->numElements && doreplace) {
3660		/* direct replacement */
3661		free(line->elements[i].item);
3662		line->elements[i].item = strdup(*arg);
3663
3664		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3665		/* root= replacement */
3666		rootLine = getLineByType(LT_ROOT, entry->lines);
3667		if (rootLine) {
3668		free(rootLine->elements[1].item);
3669		rootLine->elements[1].item =
3670		strdup(*arg + 5);
3671		} else {
3672		rootLine =
3673		addLine(entry, cfg->cfi, LT_ROOT,
3674		cfg->secondaryIndent,
3675		*arg + 5);
3676		}
3677		}
3678
3679		else {
3680		/* insert/append */
3681		insertElement(line, *arg, i, cfg->cfi);
3682		usedElements =
3683		realloc(usedElements,
3684		line->numElements *
3685		sizeof(*usedElements));
3686		memmove(&usedElements[i + 1], &usedElements[i],
3687		line->numElements - i - 1);
3688		usedElements[i] = 1;
3689
3690		/* if we updated a root= here even though
3691		* there is a LT_ROOT available we need to
3692		* remove the LT_ROOT entry (this will happen
3693		* if we switch from a device to a label) */
3694		if (useRoot && !strncmp(*arg, "root=", 5)) {
3695		rootLine =
3696		getLineByType(LT_ROOT,
3697		entry->lines);
3698		if (rootLine)
3699		removeLine(entry, rootLine);
3700		}
3701		}
3702		}
3703
3704		free(usedElements);
3705
3706		for (arg = oldArgs; *arg; arg++) {
3707		for (i = firstElement; i < line->numElements; i++) {
3708		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3709		!strcmp(line->elements[i].item, "--"))
3710		/* reached the end of hyper args, stop here */
3711		break;
3712		if (!argMatch(line->elements[i].item, *arg)) {
3713		removeElement(line, i);
3714		break;
3715		}
3716		}
3717		/* handle removing LT_ROOT line too */
3718		if (useRoot && !strncmp(*arg, "root=", 5)) {
3719		rootLine = getLineByType(LT_ROOT, entry->lines);
3720		if (rootLine)
3721		removeLine(entry, rootLine);
3722		}
3723		}
3724
3725		if (line->numElements == 1) {
3726		/* don't need the line at all (note it has to be a
3727		LT_KERNELARGS for this to happen */
3728		removeLine(entry, line);
3729		}
3730		}
3731
3732		free(newArgs);
3733		free(oldArgs);
3734
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3735	return 0;	return 0;
3736		}
3737
3738		int updateImage(struct grubConfig *cfg, const char *image,
3739		const char *prefix, const char *addArgs,
3740		const char *removeArgs,
3741		const char *addMBArgs, const char *removeMBArgs)
3742		{
3743		int rc = 0;
3744
3745		if (!image)
3746		return rc;
3747
3748		/* update the main args first... */
3749		if (addArgs || removeArgs)
3750		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3751		0);
3752		if (rc)
3753		return rc;
3754
3755		/* and now any multiboot args */
3756		if (addMBArgs || removeMBArgs)
3757		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3758		removeMBArgs, 1);
3759		return rc;
3760		}
3761
3762		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3763		const char *image, const char *prefix, const char *initrd,
3764		const char *title)
3765		{
3766		struct singleEntry *entry;
3767		struct singleLine *line, *kernelLine, *endLine = NULL;
3768		int index = 0;
3769
3770		if (!image)
3771		return 0;
3772
3773		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3774		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3775		if (!kernelLine)
3776		continue;
3777
3778		/* if title is supplied, the entry's title must match it. */
3779		if (title) {
3780		char *linetitle;
3781
3782		line =
3783		getLineByType(LT_TITLE | LT_MENUENTRY,
3784		entry->lines);
3785		if (!line)
3786		continue;
3787
3788		linetitle = extractTitle(cfg, line);
3789		if (!linetitle)
3790		continue;
3791		if (strcmp(title, linetitle)) {
3792		free(linetitle);
3793		continue;
3794		}
3795		free(linetitle);
3796		}
3797
3798		if (prefix) {
3799		int prefixLen = strlen(prefix);
3800		if (!strncmp(initrd, prefix, prefixLen))
3801		initrd += prefixLen;
3802		}
3803		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3804		if (endLine)
3805		removeLine(entry, endLine);
3806		line =
3807		addLine(entry, cfg->cfi,
3808		preferredLineType(LT_MBMODULE, cfg->cfi),
3809		kernelLine->indent, initrd);
3810		if (!line)
3811		return 1;
3812		if (endLine) {
3813		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3814		if (!line)
3815		return 1;
3816		}
3817
3818		break;
3819		}
3820
	fd = open(executable, O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3821	return 0;	return 0;
3822		}
3823
3824	if (read(fd, bootSect, 512) != 512) {	int updateInitrd(struct grubConfig *cfg, const char *image,
3825	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *prefix, const char *initrd, const char *title)
3826	executable, strerror(errno));	{
3827	return 1;	struct singleEntry *entry;
3828	}	struct singleLine *line, *kernelLine, *endLine = NULL;
3829	close(fd);	int index = 0;
3830
3831		if (!image)
3832		return 0;
3833
3834		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3835		kernelLine =
3836		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3837		entry->lines);
3838		if (!kernelLine)
3839		continue;
3840
3841		/* if title is supplied, the entry's title must match it. */
3842		if (title) {
3843		char *linetitle;
3844
3845		line =
3846		getLineByType(LT_TITLE | LT_MENUENTRY,
3847		entry->lines);
3848		if (!line)
3849		continue;
3850
3851		linetitle = extractTitle(cfg, line);
3852		if (!linetitle)
3853		continue;
3854		if (strcmp(title, linetitle)) {
3855		free(linetitle);
3856		continue;
3857		}
3858		free(linetitle);
3859		}
3860
3861		line =
3862		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3863		entry->lines);
3864		if (line)
3865		removeLine(entry, line);
3866		if (prefix) {
3867		int prefixLen = strlen(prefix);
3868		if (!strncmp(initrd, prefix, prefixLen))
3869		initrd += prefixLen;
3870		}
3871		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3872		if (endLine)
3873		removeLine(entry, endLine);
3874		enum lineType_e lt;
3875		switch (kernelLine->type) {
3876		case LT_KERNEL:
3877		lt = LT_INITRD;
3878		break;
3879		case LT_KERNEL_EFI:
3880		lt = LT_INITRD_EFI;
3881		break;
3882		case LT_KERNEL_16:
3883		lt = LT_INITRD_16;
3884		break;
3885		default:
3886		lt = preferredLineType(LT_INITRD, cfg->cfi);
3887		}
3888		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3889		if (!line)
3890		return 1;
3891		if (endLine) {
3892		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3893		if (!line)
3894		return 1;
3895		}
3896
3897	return checkDeviceBootloader(boot, bootSect);	break;
3898		}
3899
3900		return 0;
3901	}	}
3902
3903	int checkForYaboot(struct grubConfig * config) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3904	/*	{
3905	* This is a simplistic check that we consider good enough for own puporses	int fd;
3906	*	unsigned char bootSect[512];
3907	* If we were to properly check if yaboot is *installed* we'd need to:	int offset;
3908	* 1) get the system boot device (LT_BOOT)
3909	* 2) considering it's a raw filesystem, check if the yaboot binary matches	fd = open(device, O_RDONLY);
3910	*    the content on the boot device	if (fd < 0) {
3911	* 3) if not, copy the binary to a temporary file and run "addnote" on it	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3912	* 4) check again if binary and boot device contents match	device, strerror(errno));
3913	*/	return 1;
3914	if (!access("/etc/yaboot.conf", R_OK))	}
3915
3916		if (read(fd, bootSect, 512) != 512) {
3917		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3918		device, strerror(errno));
3919		return 1;
3920		}
3921		close(fd);
3922
3923		/* first three bytes should match, a jmp short should be in there */
3924		if (memcmp(boot, bootSect, 3))
3925		return 0;
3926
3927		if (boot[1] == JMP_SHORT_OPCODE) {
3928		offset = boot[2] + 2;
3929		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3930		offset = (boot[3] << 8) + boot[2] + 2;
3931		} else if (boot[0] == JMP_SHORT_OPCODE) {
3932		offset = boot[1] + 2;
3933		/*
3934		* it looks like grub, when copying stage1 into the mbr,
3935		* patches stage1 right after the JMP location, replacing
3936		* other instructions such as JMPs for NOOPs. So, relax the
3937		* check a little bit by skipping those different bytes.
3938		*/
3939		if ((bootSect[offset + 1] == NOOP_OPCODE)
3940		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3941		offset = offset + 3;
3942		}
3943		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3944		offset = (boot[2] << 8) + boot[1] + 2;
3945		} else {
3946		return 0;
3947		}
3948
3949		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3950		return 0;
3951
3952	return 2;	return 2;
3953		}
3954
3955	return 1;	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3956		{
3957		int fd;
3958		char buf[65536];
3959		char *end;
3960		char *chptr;
3961		char *chptr2;
3962		int rc;
3963
3964		/* it's on raid; we need to parse /proc/mdstat and check all of the
3965		*raw* devices listed in there */
3966
3967		if (!strncmp(mdDev, "/dev/", 5))
3968		mdDev += 5;
3969
3970		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3971		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3972		strerror(errno));
3973		return 2;
3974		}
3975
3976		rc = read(fd, buf, sizeof(buf) - 1);
3977		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3978		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3979		strerror(errno));
3980		close(fd);
3981		return 2;
3982		}
3983		close(fd);
3984		buf[rc] = '\0';
3985
3986		chptr = buf;
3987		while (*chptr) {
3988		end = strchr(chptr, '\n');
3989		if (!end)
3990		break;
3991		*end = '\0';
3992
3993		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3994		chptr[strlen(mdDev)] == ' ') {
3995
3996		/* found the device */
3997		while (*chptr && *chptr != ':')
3998		chptr++;
3999		chptr++;
4000		while (*chptr && isspace(*chptr))
4001		chptr++;
4002
4003		/* skip the "active" bit */
4004		while (*chptr && !isspace(*chptr))
4005		chptr++;
4006		while (*chptr && isspace(*chptr))
4007		chptr++;
4008
4009		/* skip the raid level */
4010		while (*chptr && !isspace(*chptr))
4011		chptr++;
4012		while (*chptr && isspace(*chptr))
4013		chptr++;
4014
4015		/* everything else is partition stuff */
4016		while (*chptr) {
4017		chptr2 = chptr;
4018		while (*chptr2 && *chptr2 != '[')
4019		chptr2++;
4020		if (!*chptr2)
4021		break;
4022
4023		/* yank off the numbers at the end */
4024		chptr2--;
4025		while (isdigit(*chptr2) && chptr2 > chptr)
4026		chptr2--;
4027		chptr2++;
4028		*chptr2 = '\0';
4029
4030		/* Better, now we need the /dev/ back. We're
4031		* done with everything before this point, so
4032		* we can just put the /dev/ part there.
4033		* There will always be room. */
4034		memcpy(chptr - 5, "/dev/", 5);
4035		rc = checkDeviceBootloader(chptr - 5, boot);
4036		if (rc != 2) {
4037		return rc;
4038		}
4039
4040		chptr = chptr2 + 1;
4041		/* skip the [11] bit */
4042		while (*chptr && !isspace(*chptr))
4043		chptr++;
4044		/* and move to the next one */
4045		while (*chptr && isspace(*chptr))
4046		chptr++;
4047		}
4048
4049		/*  we're good to go */
4050		return 2;
4051		}
4052
4053		chptr = end + 1;
4054		}
4055
4056		fprintf(stderr,
4057		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4058		mdDev);
4059		return 0;
4060	}	}
4061
4062	int checkForElilo(struct grubConfig * config) {	int checkForLilo(struct grubConfig *config)
4063	if (!access("/etc/elilo.conf", R_OK))	{
4064	return 2;	int fd;
4065		unsigned char boot[512];
4066		struct singleLine *line;
4067
4068		for (line = config->theLines; line; line = line->next)
4069		if (line->type == LT_BOOT)
4070		break;
4071
4072	return 1;	if (!line) {
4073		fprintf(stderr,
4074		_
4075		("grubby: no boot line found in lilo configuration\n"));
4076		return 1;
4077		}
4078
4079		if (line->numElements != 2)
4080		return 1;
4081
4082		fd = open("/boot/boot.b", O_RDONLY);
4083		if (fd < 0) {
4084		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4085		"/boot/boot.b", strerror(errno));
4086		return 1;
4087		}
4088
4089		if (read(fd, boot, 512) != 512) {
4090		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4091		"/boot/boot.b", strerror(errno));
4092		return 1;
4093		}
4094		close(fd);
4095
4096		if (!strncmp("/dev/md", line->elements[1].item, 7))
4097		return checkLiloOnRaid(line->elements[1].item, boot);
4098
4099		return checkDeviceBootloader(line->elements[1].item, boot);
4100	}	}
4101
4102	static char * getRootSpecifier(char * str) {	int checkForGrub2(struct grubConfig *config)
4103	char * idx, * rootspec = NULL;	{
4104		if (!access("/etc/grub.d/", R_OK))
4105		return 2;
4106
4107	if (*str == '(') {	return 1;
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
4108	}	}
4109
4110	static char * getInitrdVal(struct grubConfig * config,	int checkForGrub(struct grubConfig *config)
4111	const char * prefix, struct singleLine *tmplLine,	{
4112	const char * newKernelInitrd,	int fd;
4113	const char ** extraInitrds, int extraInitrdCount)	unsigned char bootSect[512];
4114	{	char *boot;
4115	char *initrdVal, *end;	int onSuse = isSuseSystem();
4116	int i;
4117	size_t totalSize;	if (onSuse) {
4118	size_t prefixLen;	if (parseSuseGrubConf(NULL, &boot))
4119	char separatorChar;	return 0;
4120		} else {
4121	prefixLen = strlen(prefix);	if (parseSysconfigGrub(NULL, &boot))
4122	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	return 0;
4123		}
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4124
4125	initrdVal = end = malloc(totalSize);	/* assume grub is not installed -- not an error condition */
4126		if (!boot)
4127		return 0;
4128
4129	end = stpcpy (end, newKernelInitrd + prefixLen);	fd = open("/boot/grub/stage1", O_RDONLY);
4130		if (fd < 0)
4131		/* this doesn't exist if grub hasn't been installed */
4132		return 0;
4133
4134	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	if (read(fd, bootSect, 512) != 512) {
4135	for (i = 0; i < extraInitrdCount; i++) {	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4136	const char *extraInitrd;	"/boot/grub/stage1", strerror(errno));
4137	int j;	close(fd);
4138		return 1;
4139		}
4140		close(fd);
4141
4142		/* The more elaborate checks do not work on SuSE. The checks done
4143		* seem to be reasonble (at least for now), so just return success
4144		*/
4145		if (onSuse)
4146		return 2;
4147
4148		return checkDeviceBootloader(boot, bootSect);
4149		}
4150
4151		int checkForExtLinux(struct grubConfig *config)
4152		{
4153		int fd;
4154		unsigned char bootSect[512];
4155		char *boot;
4156		char executable[] = "/boot/extlinux/extlinux";
4157
4158	extraInitrd = extraInitrds[i] + prefixLen;	printf("entered: checkForExtLinux()\n");
	/* Don't add entries that are already there */
	if (tmplLine != NULL) {
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4159
4160	if (j != tmplLine->numElements)	if (parseSysconfigGrub(NULL, &boot))
4161	continue;	return 0;
4162
4163		/* assume grub is not installed -- not an error condition */
4164		if (!boot)
4165		return 0;
4166
4167		fd = open(executable, O_RDONLY);
4168		if (fd < 0)
4169		/* this doesn't exist if grub hasn't been installed */
4170		return 0;
4171
4172		if (read(fd, bootSect, 512) != 512) {
4173		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4174		executable, strerror(errno));
4175		return 1;
4176	}	}
4177		close(fd);
4178
4179	*end++ = separatorChar;	return checkDeviceBootloader(boot, bootSect);
4180	end = stpcpy(end, extraInitrd);	}
4181	}
4182		int checkForYaboot(struct grubConfig *config)
4183		{
4184		/*
4185		* This is a simplistic check that we consider good enough for own puporses
4186		*
4187		* If we were to properly check if yaboot is *installed* we'd need to:
4188		* 1) get the system boot device (LT_BOOT)
4189		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4190		*    the content on the boot device
4191		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4192		* 4) check again if binary and boot device contents match
4193		*/
4194		if (!access("/etc/yaboot.conf", R_OK))
4195		return 2;
4196
4197	return initrdVal;	return 1;
4198	}	}
4199
4200	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int checkForElilo(struct grubConfig *config)
4201	const char * prefix,	{
4202	const char * newKernelPath, const char * newKernelTitle,	if (!access("/etc/elilo.conf", R_OK))
4203	const char * newKernelArgs, const char * newKernelInitrd,	return 2;
	const char ** extraInitrds, int extraInitrdCount,
	const char * newMBKernel, const char * newMBKernelArgs) {
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
4204
4205	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	return 1;
4206	while (findEntryByPath(config, buf, NULL, NULL)) {	}
4207	sprintf(numBuf, "%d", i++);
4208	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	static char *getRootSpecifier(char *str)
4209		{
4210		char *idx, *rootspec = NULL;
4211
4212		if (*str == '(') {
4213		idx = rootspec = strdup(str);
4214		while (*idx && (*idx != ')') && (!isspace(*idx)))
4215		idx++;
4216		*(++idx) = '\0';
4217	}	}
4218		return rootspec;
4219		}
4220
4221	newKernelTitle = buf + 6;	static char *getInitrdVal(struct grubConfig *config,
4222	}	const char *prefix, struct singleLine *tmplLine,
4223		const char *newKernelInitrd,
4224		const char **extraInitrds, int extraInitrdCount)
4225		{
4226		char *initrdVal, *end;
4227		int i;
4228		size_t totalSize;
4229		size_t prefixLen;
4230		char separatorChar;
4231
4232		prefixLen = strlen(prefix);
4233		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4234
4235		for (i = 0; i < extraInitrdCount; i++) {
4236		totalSize += sizeof(separatorChar);
4237		totalSize += strlen(extraInitrds[i]) - prefixLen;
4238		}
4239
4240		initrdVal = end = malloc(totalSize);
4241
4242		end = stpcpy(end, newKernelInitrd + prefixLen);
4243
4244		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4245		for (i = 0; i < extraInitrdCount; i++) {
4246		const char *extraInitrd;
4247		int j;
4248
4249		extraInitrd = extraInitrds[i] + prefixLen;
4250		/* Don't add entries that are already there */
4251		if (tmplLine != NULL) {
4252		for (j = 2; j < tmplLine->numElements; j++)
4253		if (strcmp
4254		(extraInitrd,
4255		tmplLine->elements[j].item) == 0)
4256		break;
4257
4258	new = malloc(sizeof(*new));	if (j != tmplLine->numElements)
4259	new->skip = 0;	continue;
4260	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;
	}
4261
4262	if (template) {	*end++ = separatorChar;
4263	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);
	}
4264	}	}
4265
4266	} else {	return initrdVal;
4267	/* don't have a template, so start the entry with the	}
4268	* appropriate starting line
4269	*/	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4270	switch (config->cfi->entryStart) {	const char *prefix,
4271	case LT_KERNEL:	const char *newKernelPath, const char *newKernelTitle,
4272	if (new->multiboot && config->cfi->mbHyperFirst) {	const char *newKernelArgs, const char *newKernelInitrd,
4273	/* fall through to LT_HYPER */	const char **extraInitrds, int extraInitrdCount,
4274	} else {	const char *newMBKernel, const char *newMBKernelArgs,
4275	newLine = addLine(new, config->cfi, LT_KERNEL,	const char *newDevTreePath, int newIndex)
4276	config->primaryIndent,	{
4277	newKernelPath + strlen(prefix));	struct singleEntry *new, *entry, *prev = NULL;
4278	needs &= ~NEED_KERNEL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4279	break;	int needs;
4280		char *indexs;
4281		char *chptr;
4282		int rc;
4283
4284		if (!newKernelPath)
4285		return 0;
4286
4287		rc = asprintf(&indexs, "%d", newIndex);
4288		if (rc < 0)
4289		return 1;
4290
4291		/* if the newKernelTitle is too long silently munge it into something
4292		* we can live with. truncating is first check, then we'll just mess with
4293		* it until it looks better */
4294		if (config->cfi->maxTitleLength &&
4295		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4296		char *buf = alloca(config->cfi->maxTitleLength + 7);
4297		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4298		int i = 1;
4299
4300		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4301		newKernelTitle);
4302		while (findEntryByPath(config, buf, NULL, NULL)) {
4303		sprintf(numBuf, "%d", i++);
4304		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4305	}	}
4306
4307	case LT_HYPER:	newKernelTitle = buf + 6;
4308	newLine = addLine(new, config->cfi, LT_HYPER,	}
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
4309
4310	case LT_MENUENTRY: {	new = malloc(sizeof(*new));
4311	char *nkt = malloc(strlen(newKernelTitle)+3);	new->skip = 0;
4312	strcpy(nkt, "'");	new->multiboot = 0;
4313	strcat(nkt, newKernelTitle);	new->lines = NULL;
4314	strcat(nkt, "'");	entry = config->entries;
4315	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (unsigned int i = 0; i < newIndex; i++) {
4316	config->primaryIndent, nkt);	if (!entry)
4317	free(nkt);	break;
4318	needs &= ~NEED_TITLE;	prev = entry;
4319	needs |= NEED_END;	entry = entry->next;
4320	break;	}
4321	}	new->next = entry;
4322	case LT_TITLE:
4323	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	if (prev)
4324	char * templabel;	prev->next = new;
4325	int x = 0, y = 0;	else
4326		config->entries = new;
4327	templabel = strdup(newKernelTitle);
4328	while( templabel[x]){	/* copy/update from the template */
4329	if( templabel[x] == ' ' ){	needs = NEED_KERNEL | NEED_TITLE;
4330	y = x;	if (newKernelInitrd)
4331	while( templabel[y] ){	needs |= NEED_INITRD;
4332	templabel[y] = templabel[y+1];	if (newMBKernel) {
4333	y++;	needs |= NEED_MB;
4334		new->multiboot = 1;
4335		}
4336		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4337		needs |= NEED_DEVTREE;
4338
4339		if (template) {
4340		for (masterLine = template->lines;
4341		masterLine && (tmplLine = lineDup(masterLine));
4342		lineFree(tmplLine), masterLine = masterLine->next) {
4343		dbgPrintf("addNewKernel processing %d\n",
4344		tmplLine->type);
4345
4346		/* skip comments */
4347		chptr = tmplLine->indent;
4348		while (*chptr && isspace(*chptr))
4349		chptr++;
4350		if (*chptr == '#')
4351		continue;
4352
4353		if (iskernel(tmplLine->type)
4354		&& tmplLine->numElements >= 2) {
4355		if (!template->multiboot && (needs & NEED_MB)) {
4356		/* it's not a multiboot template and
4357		* this is the kernel line.  Try to
4358		* be intelligent about inserting the
4359		* hypervisor at the same time.
4360		*/
4361		if (config->cfi->mbHyperFirst) {
4362		/* insert the hypervisor first */
4363		newLine =
4364		addLine(new, config->cfi,
4365		LT_HYPER,
4366		tmplLine->indent,
4367		newMBKernel +
4368		strlen(prefix));
4369		/* set up for adding the
4370		* kernel line */
4371		free(tmplLine->indent);
4372		tmplLine->indent =
4373		strdup(config->
4374		secondaryIndent);
4375		needs &= ~NEED_MB;
4376		}
4377		if (needs & NEED_KERNEL) {
4378		/* use addLineTmpl to
4379		* preserve line elements,
4380		* otherwise we could just
4381		* call addLine.
4382		* Unfortunately this means
4383		* making some changes to the
4384		* template such as the
4385		* indent change above and
4386		* the type change below.
4387		*/
4388		struct keywordTypes *mbm_kw =
4389		getKeywordByType
4390		(LT_MBMODULE, config->cfi);
4391		if (mbm_kw) {
4392		tmplLine->type =
4393		LT_MBMODULE;
4394		free(tmplLine->
4395		elements[0].item);
4396		tmplLine->elements[0].
4397		item =
4398		strdup(mbm_kw->key);
4399		}
4400		newLine =
4401		addLineTmpl(new, tmplLine,
4402		newLine,
4403		newKernelPath +
4404		strlen(prefix),
4405		config->cfi);
4406		needs &= ~NEED_KERNEL;
4407		}
4408		if (needs & NEED_MB) { /* !mbHyperFirst */
4409		newLine =
4410		addLine(new, config->cfi,
4411		LT_HYPER,
4412		config->
4413		secondaryIndent,
4414		newMBKernel +
4415		strlen(prefix));
4416		needs &= ~NEED_MB;
4417		}
4418		} else if (needs & NEED_KERNEL) {
4419		newLine =
4420		addLineTmpl(new, tmplLine, newLine,
4421		newKernelPath +
4422		strlen(prefix),
4423		config->cfi);
4424		needs &= ~NEED_KERNEL;
4425		}
4426
4427		} else if (tmplLine->type == LT_HYPER &&
4428		tmplLine->numElements >= 2) {
4429		if (needs & NEED_MB) {
4430		newLine =
4431		addLineTmpl(new, tmplLine, newLine,
4432		newMBKernel +
4433		strlen(prefix),
4434		config->cfi);
4435		needs &= ~NEED_MB;
4436		}
4437
4438		} else if (tmplLine->type == LT_MBMODULE &&
4439		tmplLine->numElements >= 2) {
4440		if (new->multiboot) {
4441		if (needs & NEED_KERNEL) {
4442		newLine =
4443		addLineTmpl(new, tmplLine,
4444		newLine,
4445		newKernelPath +
4446		strlen(prefix),
4447		config->cfi);
4448		needs &= ~NEED_KERNEL;
4449		} else if (config->cfi->mbInitRdIsModule
4450		&& (needs & NEED_INITRD)) {
4451		char *initrdVal;
4452		initrdVal =
4453		getInitrdVal(config, prefix,
4454		tmplLine,
4455		newKernelInitrd,
4456		extraInitrds,
4457		extraInitrdCount);
4458		newLine =
4459		addLineTmpl(new, tmplLine,
4460		newLine,
4461		initrdVal,
4462		config->cfi);
4463		free(initrdVal);
4464		needs &= ~NEED_INITRD;
4465	}	}
4466		} else if (needs & NEED_KERNEL) {
4467		/* template is multi but new is not,
4468		* insert the kernel in the first
4469		* module slot
4470		*/
4471		tmplLine->type =
4472		preferredLineType(LT_KERNEL,
4473		config->cfi);
4474		free(tmplLine->elements[0].item);
4475		tmplLine->elements[0].item =
4476		strdup(getKeywordByType
4477		(tmplLine->type,
4478		config->cfi)->key);
4479		newLine =
4480		addLineTmpl(new, tmplLine, newLine,
4481		newKernelPath +
4482		strlen(prefix),
4483		config->cfi);
4484		needs &= ~NEED_KERNEL;
4485		} else if (needs & NEED_INITRD) {
4486		char *initrdVal;
4487		/* template is multi but new is not,
4488		* insert the initrd in the second
4489		* module slot
4490		*/
4491		tmplLine->type =
4492		preferredLineType(LT_INITRD,
4493		config->cfi);
4494		free(tmplLine->elements[0].item);
4495		tmplLine->elements[0].item =
4496		strdup(getKeywordByType
4497		(tmplLine->type,
4498		config->cfi)->key);
4499		initrdVal =
4500		getInitrdVal(config, prefix,
4501		tmplLine,
4502		newKernelInitrd,
4503		extraInitrds,
4504		extraInitrdCount);
4505		newLine =
4506		addLineTmpl(new, tmplLine, newLine,
4507		initrdVal, config->cfi);
4508		free(initrdVal);
4509		needs &= ~NEED_INITRD;
4510	}	}
4511	x++;
4512		} else if (isinitrd(tmplLine->type)
4513		&& tmplLine->numElements >= 2) {
4514		if (needs & NEED_INITRD && new->multiboot
4515		&& !template->multiboot
4516		&& config->cfi->mbInitRdIsModule) {
4517		/* make sure we don't insert the
4518		* module initrd before the module
4519		* kernel... if we don't do it here,
4520		* it will be inserted following the
4521		* template.
4522		*/
4523		if (!needs & NEED_KERNEL) {
4524		char *initrdVal;
4525
4526		initrdVal =
4527		getInitrdVal(config, prefix,
4528		tmplLine,
4529		newKernelInitrd,
4530		extraInitrds,
4531		extraInitrdCount);
4532		newLine =
4533		addLine(new, config->cfi,
4534		LT_MBMODULE,
4535		config->
4536		secondaryIndent,
4537		initrdVal);
4538		free(initrdVal);
4539		needs &= ~NEED_INITRD;
4540		}
4541		} else if (needs & NEED_INITRD) {
4542		char *initrdVal;
4543		initrdVal =
4544		getInitrdVal(config, prefix,
4545		tmplLine,
4546		newKernelInitrd,
4547		extraInitrds,
4548		extraInitrdCount);
4549		newLine =
4550		addLineTmpl(new, tmplLine, newLine,
4551		initrdVal, config->cfi);
4552		free(initrdVal);
4553		needs &= ~NEED_INITRD;
4554		}
4555
4556		} else if (tmplLine->type == LT_MENUENTRY &&
4557		(needs & NEED_TITLE)) {
4558		requote(tmplLine, config->cfi);
4559		char *nkt = malloc(strlen(newKernelTitle) + 3);
4560		strcpy(nkt, "'");
4561		strcat(nkt, newKernelTitle);
4562		strcat(nkt, "'");
4563		newLine =
4564		addLineTmpl(new, tmplLine, newLine, nkt,
4565		config->cfi);
4566		free(nkt);
4567		needs &= ~NEED_TITLE;
4568		} else if (tmplLine->type == LT_TITLE &&
4569		(needs & NEED_TITLE)) {
4570		if (tmplLine->numElements >= 2) {
4571		newLine =
4572		addLineTmpl(new, tmplLine, newLine,
4573		newKernelTitle,
4574		config->cfi);
4575		needs &= ~NEED_TITLE;
4576		} else if (tmplLine->numElements == 1 &&
4577		config->cfi->titleBracketed) {
4578		/* addLineTmpl doesn't handle
4579		* titleBracketed */
4580		newLine =
4581		addLine(new, config->cfi, LT_TITLE,
4582		tmplLine->indent,
4583		newKernelTitle);
4584		needs &= ~NEED_TITLE;
4585		}
4586		} else if (tmplLine->type == LT_ECHO) {
4587		requote(tmplLine, config->cfi);
4588		static const char *prefix = "'Loading ";
4589		if (tmplLine->numElements > 1 &&
4590		strstr(tmplLine->elements[1].item, prefix)
4591		&& masterLine->next
4592		&& iskernel(masterLine->next->type)) {
4593		char *newTitle =
4594		malloc(strlen(prefix) +
4595		strlen(newKernelTitle) + 2);
4596
4597		strcpy(newTitle, prefix);
4598		strcat(newTitle, newKernelTitle);
4599		strcat(newTitle, "'");
4600		newLine =
4601		addLine(new, config->cfi, LT_ECHO,
4602		tmplLine->indent, newTitle);
4603		free(newTitle);
4604		} else {
4605		/* pass through other lines from the
4606		* template */
4607		newLine =
4608		addLineTmpl(new, tmplLine, newLine,
4609		NULL, config->cfi);
4610		}
4611		} else if (tmplLine->type == LT_DEVTREE &&
4612		tmplLine->numElements == 2
4613		&& newDevTreePath) {
4614		newLine =
4615		addLineTmpl(new, tmplLine, newLine,
4616		newDevTreePath + strlen(prefix),
4617		config->cfi);
4618		needs &= ~NEED_DEVTREE;
4619		} else if (tmplLine->type == LT_ENTRY_END
4620		&& needs & NEED_DEVTREE) {
4621		const char *ndtp = newDevTreePath;
4622		if (!strncmp
4623		(newDevTreePath, prefix, strlen(prefix)))
4624		ndtp += strlen(prefix);
4625		newLine = addLine(new, config->cfi, LT_DEVTREE,
4626		config->secondaryIndent,
4627		ndtp);
4628		needs &= ~NEED_DEVTREE;
4629		newLine =
4630		addLineTmpl(new, tmplLine, newLine, NULL,
4631		config->cfi);
4632		} else {
4633		/* pass through other lines from the template */
4634		newLine =
4635		addLineTmpl(new, tmplLine, newLine, NULL,
4636		config->cfi);
4637	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
4638	}	}
	needs &= ~NEED_TITLE;
	break;
4639
4640	default:	} else {
4641	abort();	/* don't have a template, so start the entry with the
4642		* appropriate starting line
4643		*/
4644		switch (config->cfi->entryStart) {
4645		case LT_KERNEL:
4646		case LT_KERNEL_EFI:
4647		case LT_KERNEL_16:
4648		if (new->multiboot && config->cfi->mbHyperFirst) {
4649		/* fall through to LT_HYPER */
4650		} else {
4651		newLine = addLine(new, config->cfi,
4652		preferredLineType(LT_KERNEL,
4653		config->
4654		cfi),
4655		config->primaryIndent,
4656		newKernelPath +
4657		strlen(prefix));
4658		needs &= ~NEED_KERNEL;
4659		break;
4660		}
4661
4662		case LT_HYPER:
4663		newLine = addLine(new, config->cfi, LT_HYPER,
4664		config->primaryIndent,
4665		newMBKernel + strlen(prefix));
4666		needs &= ~NEED_MB;
4667		break;
4668
4669		case LT_MENUENTRY:{
4670		char *nkt = malloc(strlen(newKernelTitle) + 3);
4671		strcpy(nkt, "'");
4672		strcat(nkt, newKernelTitle);
4673		strcat(nkt, "'");
4674		newLine =
4675		addLine(new, config->cfi, LT_MENUENTRY,
4676		config->primaryIndent, nkt);
4677		free(nkt);
4678		needs &= ~NEED_TITLE;
4679		needs |= NEED_END;
4680		break;
4681		}
4682		case LT_TITLE:
4683		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4684		char *templabel;
4685		int x = 0, y = 0;
4686
4687		templabel = strdup(newKernelTitle);
4688		while (templabel[x]) {
4689		if (templabel[x] == ' ') {
4690		y = x;
4691		while (templabel[y]) {
4692		templabel[y] =
4693		templabel[y + 1];
4694		y++;
4695		}
4696		}
4697		x++;
4698		}
4699		newLine = addLine(new, config->cfi, LT_TITLE,
4700		config->primaryIndent,
4701		templabel);
4702		free(templabel);
4703		} else {
4704		newLine = addLine(new, config->cfi, LT_TITLE,
4705		config->primaryIndent,
4706		newKernelTitle);
4707		}
4708		needs &= ~NEED_TITLE;
4709		break;
4710
4711		default:
4712		abort();
4713		}
4714	}	}
	}
4715
4716	/* add the remainder of the lines, i.e. those that either	struct singleLine *endLine = NULL;
4717	* weren't present in the template, or in the case of no template,	endLine = getLineByType(LT_ENTRY_END, new->lines);
4718	* all the lines following the entryStart.	if (endLine) {
4719	*/	removeLine(new, endLine);
4720	if (needs & NEED_TITLE) {	needs |= NEED_END;
4721	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;
	}
4722
4723	if (needs) {	/* add the remainder of the lines, i.e. those that either
4724	printf(_("grubby: needs=%d, aborting\n"), needs);	* weren't present in the template, or in the case of no template,
4725	abort();	* all the lines following the entryStart.
4726	}	*/
4727		if (needs & NEED_TITLE) {
4728		newLine = addLine(new, config->cfi, LT_TITLE,
4729		config->secondaryIndent, newKernelTitle);
4730		needs &= ~NEED_TITLE;
4731		}
4732		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4733		newLine = addLine(new, config->cfi, LT_HYPER,
4734		config->secondaryIndent,
4735		newMBKernel + strlen(prefix));
4736		needs &= ~NEED_MB;
4737		}
4738		if (needs & NEED_KERNEL) {
4739		newLine = addLine(new, config->cfi,
4740		(new->multiboot
4741		&& getKeywordByType(LT_MBMODULE,
4742		config->cfi))
4743		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4744		config->
4745		cfi),
4746		config->secondaryIndent,
4747		newKernelPath + strlen(prefix));
4748		needs &= ~NEED_KERNEL;
4749		}
4750		if (needs & NEED_MB) {
4751		newLine = addLine(new, config->cfi, LT_HYPER,
4752		config->secondaryIndent,
4753		newMBKernel + strlen(prefix));
4754		needs &= ~NEED_MB;
4755		}
4756		if (needs & NEED_INITRD) {
4757		char *initrdVal;
4758		initrdVal =
4759		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4760		extraInitrds, extraInitrdCount);
4761		newLine =
4762		addLine(new, config->cfi,
4763		(new->multiboot
4764		&& getKeywordByType(LT_MBMODULE, config->cfi))
4765		? LT_MBMODULE : preferredLineType(LT_INITRD,
4766		config->cfi),
4767		config->secondaryIndent, initrdVal);
4768		free(initrdVal);
4769		needs &= ~NEED_INITRD;
4770		}
4771		if (needs & NEED_DEVTREE) {
4772		newLine = addLine(new, config->cfi, LT_DEVTREE,
4773		config->secondaryIndent, newDevTreePath);
4774		needs &= ~NEED_DEVTREE;
4775		}
4776
4777		/* NEEDS_END must be last on bootloaders that need it... */
4778		if (needs & NEED_END) {
4779		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4780		config->secondaryIndent, NULL);
4781		needs &= ~NEED_END;
4782		}
4783
4784	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (needs) {
4785	newMBKernelArgs, NULL)) return 1;	printf(_("grubby: needs=%d, aborting\n"), needs);
4786		abort();
4787		}
4788
4789	return 0;	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4790		newMBKernelArgs, NULL)) {
4791		config->isModified = 1;
4792		return 1;
4793		}
4794
4795		return 0;
4796	}	}
4797
4798	static void traceback(int signum)	int main(int argc, const char **argv)
4799	{	{
4800	void *array[40];	poptContext optCon;
4801	size_t size;	const char *grubConfig = NULL;
4802		char *outputFile = NULL;
4803	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4804	memset(array, '\0', sizeof (array));	int flags = 0;
4805	size = backtrace(array, 40);	int badImageOkay = 0;
4806		int configureGrub2 = 0;
4807	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4808	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4809	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4810	exit(1);	int bootloaderProbe = 0;
4811	}	int extraInitrdCount = 0;
4812		char *updateKernelPath = NULL;
4813	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4814	poptContext optCon;	char *removeKernelPath = NULL;
4815	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4816	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4817	int arg = 0;	char *newKernelTitle = NULL;
4818	int flags = 0;	char *newDevTreePath = NULL;
4819	int badImageOkay = 0;	char *newMBKernel = NULL;
4820	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4821	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4822	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4823	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4824	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4825	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4826	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4827	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4828	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4829	char * newKernelArgs = NULL;	char *envPath = NULL;
4830	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4831	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4832	char * newKernelVersion = NULL;	struct grubConfig *config;
4833	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4834	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4835	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4836	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4837	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4838	char * defaultKernel = NULL;	int defaultIndex = -1;
4839	char * removeArgs = NULL;	struct poptOption options[] = {
4840	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4841	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4842	const char * chptr = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4843	struct configFileInfo * cfi = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4844	struct grubConfig * config;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4845	struct singleEntry * template = NULL;	_("default arguments for the new kernel or new arguments for "
4846	int copyDefault = 0, makeDefault = 0;	"kernel being updated"), _("args")},
4847	int displayDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4848	int displayDefaultIndex = 0;	_("default arguments for the new multiboot kernel or "
4849	int displayDefaultTitle = 0;	"new arguments for multiboot kernel being updated"), NULL},
4850	int defaultIndex = -1;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4851	struct poptOption options[] = {	_
4852	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	("don't sanity check images in boot entries (for testing only)"),
4853	_("add an entry for the specified kernel"), _("kernel-path") },	NULL},
4854	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4855	_("add an entry for the specified multiboot kernel"), NULL },	_
4856	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	("filesystem which contains /boot directory (for testing only)"),
4857	_("default arguments for the new kernel or new arguments for "	_("bootfs")},
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
4858	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4859	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4860	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4861	#endif	#endif
4862	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4863	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4864	_("path") },	_("path")},
4865	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4866	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4867	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4868	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4869	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4870	"template"), NULL },	"template"), NULL},
4871	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4872	_("print debugging information for failures") },	_("print debugging information for failures")},
4873	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4874	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4875	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4876	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4877	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4878	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4879	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4880	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4881	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4882	_("configure extlinux bootloader (from syslinux)") },	_("device tree directory for new stanza"), _("dtb-path")},
4883	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4884	_("configure grub bootloader") },	_("configure elilo bootloader")},
4885	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4886	_("configure grub2 bootloader") },	_("force grub2 stanzas to use efi")},
4887	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4888	_("display boot information for specified kernel"),	_("path for environment data"),
4889	_("kernel-path") },	_("path")},
4890	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4891	_("initrd image for the new kernel"), _("initrd-path") },	_("configure extlinux bootloader (from syslinux)")},
4892	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4893	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	_("configure grub bootloader")},
4894	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4895	_("configure lilo bootloader") },	_("configure grub2 bootloader")},
4896	{ "make-default", 0, 0, &makeDefault, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4897	_("make the newly added entry the default boot entry"), NULL },	_("display boot information for specified kernel"),
4898	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("kernel-path")},
4899	_("path to output updated config file (\"-\" for stdout)"),	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4900	_("path") },	_("initrd image for the new kernel"), _("initrd-path")},
4901	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4902	_("remove kernel arguments"), NULL },	_
4903	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	("auxiliary initrd image for things other than the new kernel"),
4904	_("remove multiboot kernel arguments"), NULL },	_("initrd-path")},
4905	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4906	_("remove all entries for the specified kernel"),	_("configure lilo bootloader")},
4907	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4908	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("make the newly added entry the default boot entry"), NULL},
4909	_("remove all entries for the specified multiboot kernel"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4910	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("path to output updated config file (\"-\" for stdout)"),
4911	_("make the first entry referencing the specified kernel "	_("path")},
4912	"the default"), _("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4913	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("remove kernel arguments"), NULL},
4914	_("make the given entry index the default entry"),	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4915	_("entry-index") },	_("remove multiboot kernel arguments"), NULL},
4916	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4917	_("configure silo bootloader") },	_("remove all entries for the specified kernel"),
4918	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("kernel-path")},
4919	_("title to use for the new kernel entry"), _("entry-title") },	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4920	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	_("remove all entries for the specified multiboot kernel"),
4921	_("updated information for the specified kernel"),	NULL},
4922	_("kernel-path") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4923	{ "version", 'v', 0, NULL, 'v',	_("make the first entry referencing the specified kernel "
4924	_("print the version of this program and exit"), NULL },	"the default"), _("kernel-path")},
4925	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4926	_("configure yaboot bootloader") },	_("make the given entry index the default entry"),
4927	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("entry-index")},
4928	_("configure zipl bootloader") },	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4929	POPT_AUTOHELP	_("use the given index when creating a new entry"),
4930	{ 0, 0, 0, 0, 0 }	_("entry-index")},
4931	};	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4932		_("configure silo bootloader")},
4933	useextlinuxmenu=0;	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4934		_("title to use for the new kernel entry"), _("entry-title")},
4935	signal(SIGSEGV, traceback);	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4936		_("updated information for the specified kernel"),
4937	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4938	poptReadDefaultConfig(optCon, 1);	{"version", 'v', 0, NULL, 'v',
4939		_("print the version of this program and exit"), NULL},
4940	while ((arg = poptGetNextOpt(optCon)) >= 0) {	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4941	switch (arg) {	_("configure yaboot bootloader")},
4942	case 'v':	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4943	printf("grubby version %s\n", VERSION);	_("configure zipl bootloader")},
4944	exit(0);	POPT_AUTOHELP {0, 0, 0, 0, 0}
4945	break;	};
4946	case 'i':
4947	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	useextlinuxmenu = 0;
4948	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
4949	} else {	int i = 0;
4950	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	for (int j = 1; j < argc; j++)
4951	return 1;	i += strlen(argv[j]) + 1;
4952	}	saved_command_line = malloc(i);
4953	break;	if (!saved_command_line) {
4954		fprintf(stderr, "grubby: %m\n");
4955		exit(1);
4956		}
4957		saved_command_line[0] = '\0';
4958		for (int j = 1; j < argc; j++) {
4959		strcat(saved_command_line, argv[j]);
4960		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4961		}
4962
4963		optCon = poptGetContext("grubby", argc, argv, options, 0);
4964		poptReadDefaultConfig(optCon, 1);
4965
4966		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4967		switch (arg) {
4968		case 'v':
4969		printf("grubby version %s\n", VERSION);
4970		exit(0);
4971		break;
4972		case 'i':
4973		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4974		extraInitrds[extraInitrdCount++] =
4975		strdup(poptGetOptArg(optCon));
4976		} else {
4977		fprintf(stderr,
4978		_
4979		("grubby: extra initrd maximum is %d\n"),
4980		extraInitrdCount);
4981		return 1;
4982		}
4983		break;
4984		}
4985	}	}
	}
4986
4987	if (arg < -1) {	if (arg < -1) {
4988	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4989	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4990	poptStrerror(arg));	poptStrerror(arg));
4991	return 1;	return 1;
4992	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
4993
4994	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
4995	configureYaboot + configureSilo + configureZipl +	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4996	configureExtLinux ) > 1) {	return 1;
4997	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;
	}
4998
4999	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5000	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5001	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5002	else	fprintf(stderr,
5003	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5004	cfi = &eliloConfigType;	return 1;
5005	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5006	cfi = &yabootConfigType;	fprintf(stderr,
5007	#elif __sparc__	_
5008	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5009	#elif __s390__	return 1;
5010	cfi = &ziplConfigType;	} else if (configureGrub2) {
5011	#elif __s390x__	cfi = &grub2ConfigType;
5012	cfi = &ziplConfigtype;	if (envPath)
5013	#else	cfi->envFile = envPath;
5014	cfi = &grubConfigType;	} else if (configureLilo) {
5015	#endif	cfi = &liloConfigType;
5016	}	} else if (configureGrub) {
5017		cfi = &grubConfigType;
5018		} else if (configureELilo) {
5019		cfi = &eliloConfigType;
5020		} else if (configureYaboot) {
5021		cfi = &yabootConfigType;
5022		} else if (configureSilo) {
5023		cfi = &siloConfigType;
5024		} else if (configureZipl) {
5025		cfi = &ziplConfigType;
5026		} else if (configureExtLinux) {
5027		cfi = &extlinuxConfigType;
5028		useextlinuxmenu = 1;
5029		}
5030
5031		if (!cfi) {
5032		if (grub2FindConfig(&grub2ConfigType)) {
5033		cfi = &grub2ConfigType;
5034		if (envPath)
5035		cfi->envFile = envPath;
5036		} else
5037		#ifdef __ia64__
5038		cfi = &eliloConfigType;
5039		#elif __powerpc__
5040		cfi = &yabootConfigType;
5041		#elif __sparc__
5042		cfi = &siloConfigType;
5043		#elif __s390__
5044		cfi = &ziplConfigType;
5045		#elif __s390x__
5046		cfi = &ziplConfigtype;
5047		#else
5048		cfi = &grubConfigType;
5049		#endif
5050		}
5051
5052	if (!grubConfig) {	if (!grubConfig) {
5053	if (cfi->findConfig)	if (cfi->findConfig)
5054	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5055	if (!grubConfig)	if (!grubConfig)
5056	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5057	}	}
5058
5059	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5060	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5061	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
5062	(defaultIndex >= 0))) {	|| displayDefaultTitle
5063	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
5064		fprintf(stderr,
5065		_("grubby: --bootloader-probe may not be used with "
5066	"specified option"));	"specified option"));
5067	return 1;	return 1;
5068	}	}
5069
5070	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5071	removeKernelPath)) {	removeKernelPath)) {
5072	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5073	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5074	return 1;	return 1;
5075	}	}
5076
5077	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5078	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5079	return 1;	return 1;
5080	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5081	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5082	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5083	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5084	return 1;	return 1;
5085	}	}
5086
5087	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5088	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5089	"not be used together"));	"not be used together"));
5090	return 1;	return 1;
5091	}	}
5092
5093	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5094	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5095	"may not be used together\n"));	"may not be used together\n"));
5096	return 1;	return 1;
5097	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5098	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5099	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5100	return 1;	_("grubby: cannot make removed kernel the default\n"));
5101	} else if (defaultKernel && newKernelPath &&	return 1;
5102	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5103	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5104	defaultKernel = NULL;	makeDefault = 1;
5105	}	defaultKernel = NULL;
5106	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5107	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5108		_("grubby: --set-default and --set-default-index "
5109	"may not be used together\n"));	"may not be used together\n"));
5110	return 1;	return 1;
5111	}	}
5112
5113	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5114	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5115	"is used\n"));	_("grubby: output file must be specified if stdin "
5116	return 1;	"is used\n"));
5117	}	return 1;
5118		}
5119
5120	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5121	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5122	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5123	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5124	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5125	return 1;	return 1;
5126	}	}
5127
5128	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5129
5130	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5131	if (!bootPrefix) {	if (!bootPrefix) {
5132	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5133	if (!bootPrefix) return 1;	if (!bootPrefix)
5134		return 1;
5135		} else {
5136		/* this shouldn't end with a / */
5137		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5138		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5139		}
5140	} else {	} else {
5141	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5142	}	}
	} else {
	bootPrefix = "";
	}
5143
5144	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5145	extraInitrdCount > 0) {	fprintf(stderr,
5146	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5147	return 1;	cfi->defaultConfig);
5148	}	return 1;
5149		}
5150
5151	if (bootloaderProbe) {	if (bootloaderProbe) {
5152	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5153	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5154
5155	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5156	if (grub2config) {	if (grub2config) {
5157	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5158	if (!gconfig)	if (!gconfig)
5159	gr2c = 1;	gr2c = 1;
5160	else	else
5161	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5162	}	}
	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(eliloConfigType.defaultConfig, F_OK)) {
	econfig = readConfig(eliloConfigType.defaultConfig,
	&eliloConfigType);
	if (!econfig)
	erc = 1;
	else
	erc = checkForElilo(econfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	extrc = 1;
	else
	extrc = checkForExtLinux(lconfig);
	}
	if (!access(yabootConfigType.defaultConfig, F_OK)) {
	yconfig = readConfig(yabootConfigType.defaultConfig,
	&yabootConfigType);
	if (!yconfig)
	yrc = 1;
	else
	yrc = checkForYaboot(yconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 ||
	erc == 1)
	return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (extrc == 2) printf("extlinux\n");
	if (yrc == 2) printf("yaboot\n");
	if (erc == 2) printf("elilo\n");
5163
5164	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5165	}	if (!access(grubconfig, F_OK)) {
5166		gconfig = readConfig(grubconfig, &grubConfigType);
5167		if (!gconfig)
5168		grc = 1;
5169		else
5170		grc = checkForGrub(gconfig);
5171		}
5172
5173	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5174	if (!config) return 1;	lconfig =
5175		readConfig(liloConfigType.defaultConfig,
5176		&liloConfigType);
5177		if (!lconfig)
5178		lrc = 1;
5179		else
5180		lrc = checkForLilo(lconfig);
5181		}
5182
5183	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5184	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5185	struct singleEntry * entry;	&eliloConfigType);
5186	char * rootspec;	if (!econfig)
5187		erc = 1;
5188	if (config->defaultImage == -1) return 0;	else
5189	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5190	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));
5191
5192	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5193		lconfig =
5194		readConfig(extlinuxConfigType.defaultConfig,
5195		&extlinuxConfigType);
5196		if (!lconfig)
5197		extrc = 1;
5198		else
5199		extrc = checkForExtLinux(lconfig);
5200		}
5201
5202	} else if (displayDefaultTitle) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5203	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5204	struct singleEntry * entry;	&yabootConfigType);
5205		if (!yconfig)
5206	if (config->defaultImage == -1) return 0;	yrc = 1;
5207	entry = findEntryByIndex(config, config->defaultImage);	else
5208	if (!entry) return 0;	yrc = checkForYaboot(yconfig);
5209		}
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
5210
5211	} else {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5212	char * title;	|| erc == 1)
5213		return 1;
5214
5215		if (lrc == 2)
5216		printf("lilo\n");
5217		if (gr2c == 2)
5218		printf("grub2\n");
5219		if (grc == 2)
5220		printf("grub\n");
5221		if (extrc == 2)
5222		printf("extlinux\n");
5223		if (yrc == 2)
5224		printf("yaboot\n");
5225		if (erc == 2)
5226		printf("elilo\n");
5227
5228		return 0;
5229		}
5230
5231	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	if (grubConfig == NULL) {
5232	line = getLineByType(LT_MENUENTRY, entry->lines);	printf("Could not find bootloader configuration file.\n");
5233	if (!line) return 0;	exit(1);
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5234	}	}
	return 0;
5235
5236	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5237	if (config->defaultImage == -1) return 0;	if (!config)
5238	printf("%i\n", config->defaultImage);	return 1;
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5239
5240	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5241	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5242	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5243	bootPrefix, flags, defaultIndex);	char *rootspec;
5244	setFallbackImage(config, newKernelPath != NULL);
5245	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5246	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5247	if (updateKernelPath && newKernelInitrd) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5248	if (updateInitrd(config, updateKernelPath, bootPrefix,	cfi->defaultIsSaved)
5249	newKernelInitrd)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5250	}	entry = findEntryByIndex(config, config->defaultImage);
5251	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (!entry)
5252	newKernelTitle, newKernelArgs, newKernelInitrd,	return 0;
5253	(const char **)extraInitrds, extraInitrdCount,	if (!suitableImage(entry, bootPrefix, 0, flags))
5254	newMBKernel, newMBKernelArgs)) return 1;	return 0;
5255
5256		line =
5257	if (numEntries(config) == 0) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5258	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	LT_KERNEL_16, entry->lines);
5259	"Not writing out new config.\n"));	if (!line)
5260	return 1;	return 0;
5261	}
5262		rootspec = getRootSpecifier(line->elements[1].item);
5263		printf("%s%s\n", bootPrefix, line->elements[1].item +
5264		((rootspec != NULL) ? strlen(rootspec) : 0));
5265
5266		return 0;
5267
5268		} else if (displayDefaultTitle) {
5269		struct singleLine *line;
5270		struct singleEntry *entry;
5271
5272		if (config->defaultImage == NO_DEFAULT_ENTRY)
5273		return 0;
5274		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5275		cfi->defaultIsSaved)
5276		config->defaultImage = FIRST_ENTRY_INDEX;
5277		entry = findEntryByIndex(config, config->defaultImage);
5278		if (!entry)
5279		return 0;
5280
5281		if (!configureGrub2) {
5282		char *title;
5283		line = getLineByType(LT_TITLE, entry->lines);
5284		if (!line)
5285		return 0;
5286		title = extractTitle(config, line);
5287		if (!title)
5288		return 0;
5289		printf("%s\n", title);
5290		free(title);
5291		} else {
5292		char *title;
5293
5294		dbgPrintf
5295		("This is GRUB2, default title is embeded in menuentry\n");
5296		line = getLineByType(LT_MENUENTRY, entry->lines);
5297		if (!line)
5298		return 0;
5299		title = grub2ExtractTitle(line);
5300		if (title)
5301		printf("%s\n", title);
5302		}
5303		return 0;
5304
5305		} else if (displayDefaultIndex) {
5306		if (config->defaultImage == NO_DEFAULT_ENTRY)
5307		return 0;
5308		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5309		cfi->defaultIsSaved)
5310		config->defaultImage = FIRST_ENTRY_INDEX;
5311		printf("%i\n", config->defaultImage);
5312		return 0;
5313
5314		} else if (kernelInfo)
5315		return displayInfo(config, kernelInfo, bootPrefix);
5316
5317		if (copyDefault) {
5318		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5319		if (!template)
5320		return 1;
5321		}
5322
5323		markRemovedImage(config, removeKernelPath, bootPrefix);
5324		markRemovedImage(config, removeMBKernel, bootPrefix);
5325		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5326		makeDefault, bootPrefix, flags, defaultIndex,
5327		newIndex);
5328		setFallbackImage(config, newKernelPath != NULL);
5329		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5330		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5331		return 1;
5332		if (updateKernelPath && newKernelInitrd) {
5333		if (newMBKernel) {
5334		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5335		bootPrefix, newKernelInitrd,
5336		newKernelTitle))
5337		return 1;
5338		} else {
5339		if (updateInitrd(config, updateKernelPath, bootPrefix,
5340		newKernelInitrd, newKernelTitle))
5341		return 1;
5342		}
5343		}
5344		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5345		newKernelTitle, newKernelArgs, newKernelInitrd,
5346		(const char **)extraInitrds, extraInitrdCount,
5347		newMBKernel, newMBKernelArgs, newDevTreePath,
5348		newIndex))
5349		return 1;
5350
5351		if (numEntries(config) == 0) {
5352		fprintf(stderr,
5353		_("grubby: doing this would leave no kernel entries. "
5354		"Not writing out new config.\n"));
5355		return 1;
5356		}
5357
5358	if (!outputFile)	if (!outputFile)
5359	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5360
5361	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5362	}	}

---

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Legend: Removed from v.1868   changed lines   Added in v.3021