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

Parent Directory | Revision Log | Patch

	revision 1934 by niro, Mon Oct 1 12:08:46 2012 UTC	revision 3026 by niro, Tue Jun 27 14:43:04 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	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	{ "linuxefi",   LT_KERNEL,      ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "initrdefi",  LT_INITRD,      ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ "module",     LT_MBMODULE,    ' ' },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	{ "kernel",     LT_HYPER,       ' ' },	{"initrd16", LT_INITRD_16, ' ', ' '},
246	{ NULL, 0, 0 },	{"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));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
1581
1582	return 0;	free(incoming);
	}
1583
1584	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int i = 0;	if (defaultLine) {
1586	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1589	while (entry) {	"\"${saved_entry}\"", 16)) {
1590	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1591	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592	entry = entry->next;	if (cfg->cfi->getEnv) {
1593	}	char *defTitle =
1594	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1595	}	if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701		{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824		outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828		tmpOutName = alloca(strlen(outName) + 2);
1829		sprintf(tmpOutName, "%s-", outName);
1830		out = fopen(tmpOutName, "w");
1831		if (!out) {
1832		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833		tmpOutName, strerror(errno));
1834		return 1;
1835		}
1836
1837		if (!stat(outName, &sb)) {
1838		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850		line = cfg->theLines;
1851		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852		while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881		line = line->next;
1882		}
1883
1884		if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889		i = 0;
1890		while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908		if (tmpOutName) {
1909		if (rename(tmpOutName, outName)) {
1910		fprintf(stderr,
1911		_("grubby: error moving %s to %s: %s\n"),
1912		tmpOutName, outName, strerror(errno));
1913		unlink(outName);
1914		return 1;
1915		}
1916		}
1917
1918		return 0;
1919		}
1920
1921		static int numEntries(struct grubConfig *cfg)
1922		{
1923		int i = 0;
1924		struct singleEntry *entry;
1925
1926		entry = cfg->entries;
1927		while (entry) {
1928		if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931		}
1932		return i;
1933		}
1934
1935	static char *findDiskForRoot()	static char *findDiskForRoot()
1936	{	{
1937	int fd;	int fd;
1938	char buf[65536];	char buf[65536];
1939	char *devname;	char *devname;
1940	char *chptr;	char *chptr;
1941	int rc;	int rc;
1942
1943		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944		fprintf(stderr, "grubby: failed to open %s: %s\n",
1945		_PATH_MOUNTED, strerror(errno));
1946		return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955		}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1961
1962	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1963	if (rc <= 0) {	devname = chptr;
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	char *foundanswer = NULL;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/* remember the last / entry in mtab */
	foundanswer = devname;
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1964
1965	/* Return the last / entry found */	/*
1966	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1967	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1968	*chptr = '\0';	* on to the next line.
1969	return strdup(foundanswer);	*/
1970	}	if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977		/* Seek to the next space */
1978		chptr = strchr(chptr, ' ');
1979		if (!chptr) {
1980		fprintf(stderr, "grubby: error parsing %s: %s\n",
1981		_PATH_MOUNTED, strerror(errno));
1982		return NULL;
1983		}
1984
1985		/*
1986		* The second column of a mtab entry is the mount point, we
1987		* are looking for '/' obviously.
1988		*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994		/* Next line */
1995		chptr = strchr(chptr, '\n');
1996		if (chptr)
1997		chptr++;
1998		}
1999
2000		/* Return the last / entry found */
2001		if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007	return NULL;	return NULL;
2008	}	}
2009
2010	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
2011	int i;	{
2012	struct singleLine * line;	int i;
2013		struct singleLine *line;
2014
2015	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2016	fprintf(stderr, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2017	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2018	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2019	* menuentry when read it. */	* menuentry when read it. */
2020	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2021	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2022	fprintf(stderr, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2023	else	line->elements[i].item);
2024	fprintf(stderr, "%s", line->elements[i].item);	else
2025	fprintf(stderr, "%s", line->elements[i].indent);	log_message(f, "%s",
2026		line->elements[i].item);
2027	continue;	log_message(f, "%s", line->elements[i].indent);
2028	}
2029		continue;
2030	fprintf(stderr, "%s%s",	}
2031	line->elements[i].item, line->elements[i].indent);
2032		log_message(f, "%s%s",
2033		line->elements[i].item,
2034		line->elements[i].indent);
2035		}
2036		log_message(f, "\n");
2037	}	}
	fprintf(stderr, "\n");
	}
2038	}	}
2039
2040	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042	{	{
2043	va_list argp;	static int once;
2044		va_list argp, argq;
2045
2046	if (!debug)	va_start(argp, fmt);
	return;
2047
2048	va_start(argp, fmt);	va_copy(argq, argp);
2049	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2050	vfprintf(stderr, fmt, argp);	log_time(NULL);
2051	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2052	va_end(argp);	}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079	}	}
2080
2081	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1553  static int endswith(const char *s, char	Line 2091  static int endswith(const char *s, char
2091	return s[slen] == c;	return s[slen] == c;
2092	}	}
2093
2094	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int skipRemoved, int flags) {	int skipRemoved, int flags)
2096	struct singleLine * line;	{
2097	char * fullName;	struct singleLine *line;
2098	int i;	char *fullName;
2099	char * dev;	int i;
2100	char * rootspec;	char *dev;
2101	char * rootdev;	char *rootspec;
2102		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2103
2104	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2105	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	notSuitablePrintf(entry, "no line found\n");	return 0;
2107	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2108
2109	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2110		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111		entry->lines);
2112		if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120		}
2121
2122	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2124	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2125	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2126
2127	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2128	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2129	} else {	rootspec = getRootSpecifier(line->elements[1].item);
2130	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	int hasslash = endswith(bootPrefix, '/') ||
2132	*/	beginswith(line->elements[1].item + rootspec_offset, '/');
2133	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135	/* failed to find one */	if (access(fullName, R_OK)) {
2136	if (!line) {	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	notSuitablePrintf(entry, "no line found\n");
2137	return 0;	return 0;
2138	}	}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144		} else {
2145		/* look for a lilo style LT_ROOT line */
2146		line = getLineByType(LT_ROOT, entry->lines);
2147
2148		if (line && line->numElements >= 2) {
2149		dev = line->elements[1].item;
2150		} else {
2151		/* didn't succeed in finding a LT_ROOT, let's try
2152		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154		*/
2155		line =
2156		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157		entry->lines);
2158
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2166	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2167	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2168	dev = line->elements[i].item + 5;	break;
2169	else {	if (i < line->numElements)
2170	notSuitablePrintf(entry, "no root= entry found\n");	dev = line->elements[i].item + 5;
2171	/* it failed too...  can't find root= */	else {
2172	return 0;	notSuitablePrintf(entry, 0,
2173	}	"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
	}
2179
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2180	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2189	if (!rootdev) {	if (!rootdev) {
2190	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2191	return 0;	return 0;
2192	}	}
2193
2194	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2196	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2197	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2198	return 0;	free(rootdev);
2199	}	return 0;
2200		}
2201
2202	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2204	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2205	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2206	return 0;	free(rootdev);
2207	}	return 0;
2208		}
2209
2210	free(rootdev);	free(rootdev);
2211		notSuitablePrintf(entry, 1, "\n");
2212
2213	return 1;	return 1;
2214	}	}
2215
2216	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2217	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2218	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2220	int * index) {	int *index)
2221	struct singleEntry * entry = NULL;	{
2222	struct singleLine * line;	struct singleEntry *entry = NULL;
2223	int i;	struct singleLine *line;
2224	char * chptr;	int i;
2225	char * rootspec = NULL;	char *chptr;
2226	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228	if (isdigit(*kernel)) {
2229	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	i = 0;	if (*chptr) {
2241	indexVars[i] = strtol(kernel, &chptr, 10);	/* can't parse it, bail */
2242	while (*chptr == ',') {	return NULL;
2243	i++;	}
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2244
2245	if (*chptr) {	indexVars[i + 1] = -1;
	/* can't parse it, bail */
	return NULL;
	}
2246
2247	indexVars[i + 1] = -1;	i = 0;
2248		if (index) {
2249	i = 0;	while (i < *index) {
2250	if (index) {	i++;
2251	while (i < *index) i++;	if (indexVars[i] == -1)
2252	if (indexVars[i] == -1) return NULL;	return NULL;
2253	}	}
2254		}
2255
2256	entry = findEntryByIndex(config, indexVars[i]);	entry = findEntryByIndex(config, indexVars[i]);
2257	if (!entry) return NULL;	if (!entry)
2258		return NULL;
2259
2260		line =
2261		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262		LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269		}
2270
2271		if (!strcmp(kernel, "DEFAULT")) {
2272		if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274		} else {
2275		entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2288	if (!line) return NULL;	if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	if (index) *index = indexVars[i];	if (entry && index)
2294	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2295	} else {	} else {
2296	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2297	if (entry && entry->skip)	i = *index;
2298	entry = NULL;	else
2299	else if (index)	i = 0;
2300	*index = config->defaultImage;
2301	}	if (!strncmp(kernel, "TITLE=", 6)) {
2302	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2303	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2304	i = *index;	kernel += 6;
2305	else	}
2306	i = 0;
2307		for (entry = findEntryByIndex(config, i); entry;
2308		entry = entry->next, i++) {
2309		if (entry->skip)
2310		continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346		/* make sure this entry has a kernel identifier; this skips
2347		* non-Linux boot entries (could find netbsd etc, though, which is
2348		* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357	while ((entry = findEntryByIndex(config, i))) {	if (index)
2358	if (!entry->skip) break;	*index = i;
	i++;
2359	}	}
2360
2361	if (entry && index)	return entry;
2362	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2363
2364	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	prefix = "";	int *index)
2366	checkType = LT_TITLE|LT_MENUENTRY;	{
2367	kernel += 6;	struct singleEntry *entry;
2368	}	struct singleLine *line;
2369		int i;
2370	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2371	if (entry->skip) continue;
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2374		continue;
2375	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
2376	for (line = entry->lines; line; line = line->next) {	if (!line)
2377	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	line = getLineByType(LT_MENUENTRY, entry->lines);
2378	LT_KERNEL|LT_MBMODULE|LT_HYPER :	if (!line)
2379	checkType, line);	continue;
2380	if (!line) break;  /* not found in this entry */	newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382	if (line && line->type != LT_MENUENTRY &&	continue;
2383	line->numElements >= 2) {	if (!strcmp(title, newtitle))
	rootspec = getRootSpecifier(line->elements[1].item);
	if (!strcmp(line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0),
	kernel + strlen(prefix)))
2384	break;	break;
	}
	if(line->type == LT_MENUENTRY &&
	!strcmp(line->elements[1].item, kernel))
	break;
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2385	}	}
2386
2387	if (index) *index = i;	if (!entry)
2388	}	return NULL;
2389
2390	return entry;	if (index)
2391		*index = i;
2392		return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398
2399	entry = cfg->entries;	entry = cfg->entries;
2400	while (index && entry) {	while (index && entry) {
2401	entry = entry->next;	entry = entry->next;
2402	index--;	index--;
2403	}	}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1795  struct singleEntry * findEntryByIndex(st	Line 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->defaultImage > -1) {
2419	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2420	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2421	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2422	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423		if (defTitle) {
2424		int index = 0;
2425		if (isnumber(defTitle)) {
2426		index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return entry;	return entry;
2468	}	}
2469
2470	index++;	index++;
2471	}	}
2472
2473	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2474		_("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		struct singleEntry *entry;
	if (!image)
	return;
	/* check and see if we're removing the default image */
	if (isdigit(*image)) {
	entry = findEntryByPath(cfg, image, prefix, NULL);
	if(entry)
	entry->skip = 1;
	return;
	}
2504
2505	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2506	entry->skip = 1;	return;
	}
2507
2508	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2509	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2510	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2512	int i, j;	entry->skip = 1;
2513		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if ((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;
2514	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2515
2516	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	/* we can preserve the default */	entry->skip = 1;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2518	}	}
2519
2520	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	int j;	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524	if (config->fallbackImage == -1) return;	{
2525		struct singleEntry *bootEntry, *newDefault;
2526	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2527
2528	if (hasNew)	/* handle the two cases where the user explictly picks the default
2529	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--;
	}
	}
2530
2531	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* Case 1: user chose to make the latest boot entry the default */
2532	struct singleLine * line;	if (newBootEntryIsDefault) {
2533	char * root = NULL;	config->defaultImage = newBootEntryIndex;
2534	int i;	return;
2535		}
2536	printf("index=%d\n", index);
2537		/* Case 2: user picked an arbitrary index as the default boot entry */
2538	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2539	if (!line) {	&& config->cfi->defaultIsIndex) {
2540	printf("non linux entry\n");	indexToVerify = newDefaultBootEntryIndex;
2541	return;
2542	}	/* user chose to make latest boot entry the default */
2543		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2544		config->defaultImage = newBootEntryIndex;
2545		return;
2546		}
2547
2548	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* the user picks the default index based on the
2549	printf("kernel=%s\n", line->elements[1].item);	* order of the bootloader configuration after
2550	else	* modification; ensure we are checking for the
2551	printf("kernel=%s%s\n", prefix, line->elements[1].item);	* existence of the correct entry */
2552		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2553	if (line->numElements >= 3) {	if (!config->isModified)
2554	printf("args=\"");	indexToVerify--;
2555	i = 2;	}
2556	while (i < line->numElements) {
2557	if (!strncmp(line->elements[i].item, "root=", 5)) {	/* verify the user selected index will exist */
2558	root = line->elements[i].item + 5;	if (findEntryByIndex(config, indexToVerify)) {
2559	} else {	config->defaultImage = newDefaultBootEntryIndex;
2560	printf("%s%s", line->elements[i].item,	} else {
2561	line->elements[i].indent);	config->defaultImage = NO_DEFAULT_ENTRY;
2562	}	}
2563
2564	i++;	return;
2565	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2566
2567	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;
2568
2569	printf("%s%s", s, line->elements[i].indent);	/* check validity of existing default or first-entry-found
2570		selection */
2571		if (defaultKernelPath) {
2572		/* we must initialize this */
2573		firstKernelEntryIndex = 0;
2574		/* user requested first-entry-found */
2575		if (!findEntryByPath(config, defaultKernelPath,
2576		prefix, &firstKernelEntryIndex)) {
2577		/* don't change default if can't find match */
2578		config->defaultImage = NO_DEFAULT_ENTRY;
2579		return;
2580	}	}
2581
2582	i++;	config->defaultImage = firstKernelEntryIndex;
	}
2583
2584	s = line->elements[i - 1].indent;	/* this is where we start looking for decrement later */
2585	printf("\"\n");	currentLookupIndex = config->defaultImage;
	}
	}
2586
2587	if (!root) {	if (isAddingBootEntry && !config->isModified &&
2588	line = getLineByType(LT_ROOT, entry->lines);	(newBootEntryIndex < config->defaultImage)) {
2589	if (line && line->numElements >= 2)	/* increment because new entry added before default */
2590	root=line->elements[1].item;	config->defaultImage++;
2591	}	}
2592		} else {
2593		/* use pre-existing default entry */
2594		currentLookupIndex = config->defaultImage;
2595
2596	if (root) {	if (isAddingBootEntry
2597	char * s = alloca(strlen(root) + 1);	&& (newBootEntryIndex <= config->defaultImage)) {
2598		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);
	}
2599
2600	line = getLineByType(LT_INITRD, entry->lines);	if (config->isModified) {
2601		currentLookupIndex++;
2602		}
2603		}
2604		}
2605
2606	if (line && line->numElements >= 2) {	/* sanity check - is this entry index valid? */
2607	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	bootEntry = findEntryByIndex(config, currentLookupIndex);
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2608
2609	for (i = 1; i < line->numElements; i++)	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2610	printf("%s%s", line->elements[i].item, line->elements[i].indent);	/* entry is to be skipped or is invalid */
2611	printf("\n");	if (isAddingBootEntry) {
2612	}	config->defaultImage = newBootEntryIndex;
2613		return;
2614		}
2615		newDefault =
2616		findTemplate(config, prefix, &config->defaultImage, 1,
2617		flags);
2618		if (!newDefault) {
2619		config->defaultImage = NO_DEFAULT_ENTRY;
2620		}
2621
2622	line = getLineByType(LT_TITLE, entry->lines);	return;
2623	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);
	}
	}
2624
2625	int isSuseSystem(void) {	currentLookupIndex--;
	const char * path;
	const static char default_path[] = "/etc/SuSE-release";
2626
2627	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	/* decrement index by the total number of entries deleted */
	path = default_path;
2628
2629	if (!access(path, R_OK))	for (indexToVerify = currentLookupIndex;
2630	return 1;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	return 0;
	}
2631
2632	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;
	}
2633
2634	while ((res = getline(&line, &len, grubConf)) != -1) {	if (bootEntry && bootEntry->skip) {
2635	if (!strncmp(line, "setup", 5)) {	config->defaultImage--;
2636	fclose(grubConf);	}
	free(line);
	return 1;
2637	}	}
2638	}	}
2639
2640	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	void setFallbackImage(struct grubConfig *config, int hasNew)
2641	path);	{
2642		struct singleEntry *entry, *entry2;
2643		int j;
2644
2645	fclose(grubConf);	if (config->fallbackImage == -1)
2646	free(line);	return;
	return 0;
	}
2647
2648	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	entry = findEntryByIndex(config, config->fallbackImage);
2649	FILE * grubConf;	if (!entry || entry->skip) {
2650	char * line = NULL;	config->fallbackImage = -1;
2651	size_t res = 0, len = 0;	return;
	if (!path) return 1;
	if (!lbaPtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2652	}	}
2653
2654	if (!strncmp(line, "setup", 5)) {	if (hasNew)
2655	if (strstr(line, "--force-lba")) {	config->fallbackImage++;
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2656
2657	free(line);	/* count the number of entries erased before this one */
2658	fclose(grubConf);	for (j = 0; j < config->fallbackImage; j++) {
2659	return 0;	entry2 = findEntryByIndex(config, j);
2660		if (entry2->skip)
2661		config->fallbackImage--;
2662		}
2663	}	}
2664
2665	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2666	FILE * grubConf;	{
2667	char * line = NULL;	struct singleLine *line;
2668	size_t res = 0, len = 0;	char *root = NULL;
2669	char * lastParamPtr = NULL;	int i;
2670	char * secLastParamPtr = NULL;	int j;
	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';
	}
2671
2672	lastParamPtr = bounds = line + res;	printf("index=%d\n", index);
2673
2674	/* Last parameter in grub may be an optional IMAGE_DEVICE */	line =
2675	while (!isspace(*lastParamPtr))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2676	lastParamPtr--;	entry->lines);
2677	lastParamPtr++;	if (!line) {
2678		printf("non linux entry\n");
2679		return;
2680		}
2681
2682	secLastParamPtr = lastParamPtr - 2;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2683	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);	printf("kernel=%s\n", line->elements[1].item);
2684		else
2685		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2686
2687	if (lastParamPtr + 3 > bounds) {	if (line->numElements >= 3) {
2688	dbgPrintf("lastParamPtr going over boundary");	printf("args=\"");
2689	fclose(grubConf);	i = 2;
2690	free(line);	while (i < line->numElements) {
2691	return 1;	if (!strncmp(line->elements[i].item, "root=", 5)) {
2692	}	root = line->elements[i].item + 5;
2693	if (!strncmp(lastParamPtr, "(hd", 3))	} else {
2694	lastParamPtr += 3;	printf("%s%s", line->elements[i].item,
2695	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);	line->elements[i].indent);
2696		}
2697
2698	/*	i++;
2699	* Second last parameter will decide wether last parameter is	}
2700	* an IMAGE_DEVICE or INSTALL_DEVICE	printf("\"\n");
	*/
	while (!isspace(*secLastParamPtr))
	secLastParamPtr--;
	secLastParamPtr++;
	if (secLastParamPtr + 3 > bounds) {
	dbgPrintf("secLastParamPtr going over boundary");
	fclose(grubConf);
	free(line);
	return 1;
	}
	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
	if (!strncmp(secLastParamPtr, "(hd", 3)) {
	secLastParamPtr += 3;
	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
	installDeviceNumber = *secLastParamPtr;
2701	} else {	} else {
2702	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2703		if (line) {
2704		char *s;
2705
2706		printf("args=\"");
2707		i = 1;
2708		while (i < line->numElements) {
2709		if (!strncmp
2710		(line->elements[i].item, "root=", 5)) {
2711		root = line->elements[i].item + 5;
2712		} else {
2713		s = line->elements[i].item;
2714
2715		printf("%s%s", s,
2716		line->elements[i].indent);
2717		}
2718
2719		i++;
2720		}
2721
2722		s = line->elements[i - 1].indent;
2723		printf("\"\n");
2724		}
2725	}	}
2726
2727	*devicePtr = malloc(6);	if (!root) {
2728	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2729	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2730	fclose(grubConf);	root = line->elements[1].item;
2731	free(line);	}
	return 0;
	}
2732
2733	free(line);	if (root) {
2734	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;
2735
2736	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2737	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2738	continue;	s[strlen(s) - 1] = '\0';
2739		/* make sure the root doesn't have a trailing " */
2740	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';
2741	}	}
2742
2743	devicePtr = line;	line =
2744	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2745		entry->lines);
2746
2747	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2748	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2749	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2750		else
2751		printf("initrd=%s", prefix);
2752
2753	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2754	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2755	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2756	devicePtr++;	printf("\n");
2757		}
2758
2759	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2760	break;	if (line) {
2761		printf("title=%s\n", line->elements[1].item);
2762		} else {
2763		char *title;
2764		line = getLineByType(LT_MENUENTRY, entry->lines);
2765		if (line) {
2766		title = grub2ExtractTitle(line);
2767		if (title)
2768		printf("title=%s\n", title);
2769		}
2770	}	}
	}
2771
2772	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2773	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2774	return 0;	if (!strncmp
2775		(prefix, line->elements[1].item, strlen(prefix)))
2776		printf("mbmodule%d=", j);
2777		else
2778		printf("mbmodule%d=%s", j, prefix);
2779
2780		for (i = 1; i < line->numElements; i++)
2781		printf("%s%s", line->elements[i].item,
2782		line->elements[i].indent);
2783		printf("\n");
2784		j++;
2785		}
2786		}
2787	}	}
2788
2789	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2790	char * grubDevice;	{
2791		const char *path;
2792		const static char default_path[] = "/etc/SuSE-release";
2793
2794	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2795	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);
2796
2797	free(grubDevice);	if (!access(path, R_OK))
2798	return 0;	return 1;
2799		return 0;
2800	}	}
2801
2802	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2803	/*	{
2804	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2805	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2806	* grub on that system.	size_t len = 0, res = 0;
2807	*/
2808	const char * path;	grubConf = fopen(path, "r");
2809	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2810		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2811	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2812	path = default_path;	return 0;
2813		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2814
2815	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2816	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2817	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2818	}	free(line);
2819		return 1;
2820		}
2821		}
2822
2823	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2824		path);
2825
2826		fclose(grubConf);
2827		free(line);
2828		return 0;
2829	}	}
2830
2831	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2832	FILE * in;	{
2833	char buf[1024];	FILE *grubConf;
2834	char * chptr;	char *line = NULL;
2835	char * start;	size_t res = 0, len = 0;
2836	char * param;
2837		if (!path)
2838	in = fopen("/etc/conf.d/grub", "r");	return 1;
2839	if (!in) return 1;	if (!lbaPtr)
2840		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);
	}
2841
2842	fclose(in);	grubConf = fopen(path, "r");
2843		if (!grubConf)
2844		return 1;
2845
2846	return 0;	while ((res = getline(&line, &len, grubConf)) != -1) {
2847	}	if (line[res - 1] == '\n')
2848		line[res - 1] = '\0';
2849		else if (len > res)
2850		line[res] = '\0';
2851		else {
2852		line = realloc(line, res + 1);
2853		line[res] = '\0';
2854		}
2855
2856	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2857	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2858	int lba;	*lbaPtr = 1;
2859		} else {
2860	if (isSuseSystem()) {	*lbaPtr = 0;
2861	if (parseSuseGrubConf(&lba, &boot)) {	}
2862	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2863	return;	break;
2864	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2865	}	}
	}
2866
2867	if (lba) printf("lba\n");	free(line);
2868	if (boot) {	fclose(grubConf);
2869	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2870	}	}
2871
2872	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2873	const char * prefix) {	{
2874	int i = 0;	FILE *grubConf;
2875	struct singleEntry * entry;	char *line = NULL;
2876	struct singleLine * line;	size_t res = 0, len = 0;
2877		char *lastParamPtr = NULL;
2878	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2879	if (!entry) {	char installDeviceNumber = '\0';
2880	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
2881
2882	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (!path)
2883	be a better way */	return 1;
2884	if (config->cfi == &grubConfigType) {	if (!devicePtr)
2885	dumpSysconfigGrub();	return 1;
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2886
2887	line = getLineByType(LT_LBA, config->theLines);	grubConf = fopen(path, "r");
2888	if (line) printf("lba\n");	if (!grubConf)
2889	}	return 1;
2890
2891	displayEntry(entry, prefix, i);	while ((res = getline(&line, &len, grubConf)) != -1) {
2892		if (strncmp(line, "setup", 5))
2893		continue;
2894
2895		if (line[res - 1] == '\n')
2896		line[res - 1] = '\0';
2897		else if (len > res)
2898		line[res] = '\0';
2899		else {
2900		line = realloc(line, res + 1);
2901		line[res] = '\0';
2902		}
2903
2904	i++;	lastParamPtr = bounds = line + res;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
2905
2906	return 0;	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2907	}	while (!isspace(*lastParamPtr))
2908		lastParamPtr--;
2909		lastParamPtr++;
2910
2911		secLastParamPtr = lastParamPtr - 2;
2912		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2913
2914		if (lastParamPtr + 3 > bounds) {
2915		dbgPrintf("lastParamPtr going over boundary");
2916		fclose(grubConf);
2917		free(line);
2918		return 1;
2919		}
2920		if (!strncmp(lastParamPtr, "(hd", 3))
2921		lastParamPtr += 3;
2922		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2923
2924		/*
2925		* Second last parameter will decide wether last parameter is
2926		* an IMAGE_DEVICE or INSTALL_DEVICE
2927		*/
2928		while (!isspace(*secLastParamPtr))
2929		secLastParamPtr--;
2930		secLastParamPtr++;
2931
2932		if (secLastParamPtr + 3 > bounds) {
2933		dbgPrintf("secLastParamPtr going over boundary");
2934		fclose(grubConf);
2935		free(line);
2936		return 1;
2937		}
2938		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2939		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2940		secLastParamPtr += 3;
2941		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2942		installDeviceNumber = *secLastParamPtr;
2943		} else {
2944		installDeviceNumber = *lastParamPtr;
2945		}
2946
2947	struct singleLine * addLineTmpl(struct singleEntry * entry,	*devicePtr = malloc(6);
2948	struct singleLine * tmplLine,	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2949	struct singleLine * prevLine,	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2950	const char * val,	fclose(grubConf);
2951	struct configFileInfo * cfi)	free(line);
2952	{	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);
	}
2953	}	}
	}
2954
2955	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	free(line);
2956	newLine->elements[0].item : "");	fclose(grubConf);
2957		return 1;
	if (!entry->lines) {
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
2958	}	}
2959
2960	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2961	struct singleLine *  addLine(struct singleEntry * entry,	{
2962	struct configFileInfo * cfi,	FILE *deviceMap;
2963	enum lineType_e type, char * defaultIndent,	char *line = NULL;
2964	const char * val) {	size_t res = 0, len = 0;
2965	struct singleLine * line, * prev;	char *devicePtr;
2966	struct keywordTypes * kw;	char *bounds = NULL;
2967	struct singleLine tmpl;	const char *path;
2968		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 = "";
	}
	}
2969
2970	/* The last non-empty line gives us the indention to us and the line	if (!device)
2971	to insert after. Note that comments are considered empty lines, which	return 1;
2972	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
2973	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;
	}
2974
2975	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2976	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;
	}
2977
2978	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
2979	}	deviceMap = fopen(path, "r");
2980		if (!deviceMap)
2981		return 1;
2982
2983		while ((res = getline(&line, &len, deviceMap)) != -1) {
2984		if (!strncmp(line, "#", 1))
2985		continue;
2986
2987		if (line[res - 1] == '\n')
2988		line[res - 1] = '\0';
2989		else if (len > res)
2990		line[res] = '\0';
2991		else {
2992		line = realloc(line, res + 1);
2993		line[res] = '\0';
2994		}
2995
2996	void removeLine(struct singleEntry * entry, struct singleLine * line) {	devicePtr = line;
2997	struct singleLine * prev;	bounds = line + res;
	int i;
2998
2999	for (i = 0; i < line->numElements; i++) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3000	free(line->elements[i].item);	devicePtr++;
3001	free(line->elements[i].indent);	dbgPrintf("device: %s\n", devicePtr);
3002	}
3003	free(line->elements);	if (!strncmp(devicePtr, device, strlen(device))) {
3004	free(line->indent);	devicePtr += strlen(device);
3005		while (isspace(*devicePtr)
3006		&& ((devicePtr + 1) <= bounds))
3007		devicePtr++;
3008
3009	if (line == entry->lines) {	*bootPtr = strdup(devicePtr);
3010	entry->lines = line->next;	break;
3011	} else {	}
3012	prev = entry->lines;	}
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3013
3014	free(line);	free(line);
3015		fclose(deviceMap);
3016		return 0;
3017	}	}
3018
3019	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3020	{	{
3021	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;
	}
3022
3023	line->elements = realloc(line->elements, (line->numElements + 1) *	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3024	sizeof(*line->elements));	dbgPrintf("error looking for grub installation device\n");
3025	memmove(&line->elements[insertHere+1],	else
3026	&line->elements[insertHere],	dbgPrintf("grubby installation device: %s\n", grubDevice);
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {
	/* move the end-of-line forward */
	line->elements[insertHere].indent =
	line->elements[insertHere-1].indent;
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
3027
3028	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3029		dbgPrintf("error looking for grub boot device\n");
3030		else
3031		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3032
3033	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3034	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3035	}	}
3036
3037	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3038	int i;	{
3039		/*
3040	/* sanity check */	* This SuSE grub configuration file at this location is not your
3041	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3042		* used to setup grub on that system.
3043	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3044	removeHere, line->elements[removeHere].item);	const char *path;
3045		const static char default_path[] = "/etc/grub.conf";
3046
3047	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3048		path = default_path;
3049
3050	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3051	/* 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);
	}
3052
3053	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3054	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3055	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3056		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;
3057	}	}
	}
3058
3059	if (!removeArgs) {	if (bootPtr) {
3060	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3061	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3062	}	}
	}
3063
3064		return 0;
3065		}
3066
3067		int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3068		{
3069		FILE *in;
3070		char buf[1024];
3071		char *chptr;
3072		char *start;
3073		char *param;
3074
3075	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	in = fopen("/etc/sysconfig/grub", "r");
3076	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	if (!in)
3077		return 1;
3078
3079	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	if (lbaPtr)
3080	&& !multibootArgs);	*lbaPtr = 0;
3081		if (bootPtr)
3082		*bootPtr = NULL;
3083
3084		while (fgets(buf, sizeof(buf), in)) {
3085		start = buf;
3086		while (isspace(*start))
3087		start++;
3088		if (*start == '#')
3089		continue;
3090
3091		chptr = strchr(start, '=');
3092		if (!chptr)
3093		continue;
3094		chptr--;
3095		while (*chptr && isspace(*chptr))
3096		chptr--;
3097		chptr++;
3098		*chptr = '\0';
3099
3100		param = chptr + 1;
3101		while (*param && isspace(*param))
3102		param++;
3103		if (*param == '=') {
3104		param++;
3105		while (*param && isspace(*param))
3106		param++;
3107		}
3108
3109	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	chptr = param;
3110		while (*chptr && !isspace(*chptr))
3111		chptr++;
3112		*chptr = '\0';
3113
3114		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3115		*lbaPtr = 1;
3116		else if (!strcmp(start, "boot") && bootPtr)
3117		*bootPtr = strdup(param);
3118		}
3119
3120	if (multibootArgs && !entry->multiboot)	fclose(in);
	continue;
3121
3122	/* Determine where to put the args.  If this config supports	return 0;
3123	* LT_KERNELARGS, use that.  Otherwise use	}
3124	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3125	*/	void dumpSysconfigGrub(void)
3126	if (useKernelArgs) {	{
3127	line = getLineByType(LT_KERNELARGS, entry->lines);	char *boot = NULL;
3128	if (!line) {	int lba;
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
3129
3130		if (isSuseSystem()) {
3131		if (parseSuseGrubConf(&lba, &boot)) {
3132		free(boot);
3133		return;
3134		}
3135	} else {	} else {
3136	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);	if (parseSysconfigGrub(&lba, &boot)) {
3137	if (!line) {	free(boot);
3138	/* no LT_KERNEL or LT_MBMODULE in this entry? */	return;
3139	continue;	}
	}
	firstElement = 2;
3140	}	}
3141
3142	/* handle the elilo case which does:	if (lba)
3143	*   append="hypervisor args -- kernel args"	printf("lba\n");
3144	*/	if (boot) {
3145	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	printf("boot=%s\n", boot);
3146	/* this is a multiboot entry, make sure there's	free(boot);
3147	* -- on the args line	}
3148	*/	}
	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;
	}
	}
3149
3150	if (i < line->numElements && doreplace) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3151	/* direct replacement */	{
3152	free(line->elements[i].item);	int i = 0;
3153	line->elements[i].item = strdup(*arg);	struct singleEntry *entry;
3154		struct singleLine *line;
3155
3156		entry = findEntryByPath(config, kernel, prefix, &i);
3157		if (!entry) {
3158		fprintf(stderr, _("grubby: kernel not found\n"));
3159		return 1;
3160		}
3161
3162	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3163	/* root= replacement */	be a better way */
3164	rootLine = getLineByType(LT_ROOT, entry->lines);	if (config->cfi == &grubConfigType) {
3165	if (rootLine) {	dumpSysconfigGrub();
3166	free(rootLine->elements[1].item);	} else {
3167	rootLine->elements[1].item = strdup(*arg + 5);	line = getLineByType(LT_BOOT, config->theLines);
3168	} else {	if (line && line->numElements >= 1) {
3169	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	printf("boot=%s\n", line->elements[1].item);
	cfg->secondaryIndent, *arg + 5);
3170	}	}
	}
3171
3172	else {	line = getLineByType(LT_LBA, config->theLines);
3173	/* insert/append */	if (line)
3174	insertElement(line, *arg, i, cfg->cfi);	printf("lba\n");
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
3175	}	}
	}
3176
3177	free(newArgs);	displayEntry(entry, prefix, i);
	free(oldArgs);
3178
3179	return 0;	i++;
3180		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3181		displayEntry(entry, prefix, i);
3182		i++;
3183		}
3184
3185		return 0;
3186	}	}
3187
3188	int updateImage(struct grubConfig * cfg, const char * image,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3189	const char * prefix, const char * addArgs,	struct singleLine *tmplLine,
3190	const char * removeArgs,	struct singleLine *prevLine,
3191	const char * addMBArgs, const char * removeMBArgs) {	const char *val, struct configFileInfo *cfi)
3192	int rc = 0;	{
3193		struct singleLine *newLine = lineDup(tmplLine);
3194	if (!image) return rc;
3195		if (isEfi && cfi == &grub2ConfigType) {
3196	/* update the main args first... */	enum lineType_e old = newLine->type;
3197	if (addArgs || removeArgs)	newLine->type = preferredLineType(newLine->type, cfi);
3198	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (old != newLine->type)
3199	if (rc) return rc;	newLine->elements[0].item =
3200		getKeyByType(newLine->type, cfi);
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
	return 1;
3201	}	}
3202
3203	break;	if (val) {
3204	}	/* override the inherited value with our own.
3205		* This is a little weak because it only applies to elements[1]
3206		*/
3207		if (newLine->numElements > 1)
3208		removeElement(newLine, 1);
3209		insertElement(newLine, val, 1, cfi);
3210
3211		/* but try to keep the rootspec from the template... sigh */
3212		if (tmplLine->
3213		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3214		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3215		LT_INITRD_16)) {
3216		char *rootspec =
3217		getRootSpecifier(tmplLine->elements[1].item);
3218		if (rootspec != NULL) {
3219		free(newLine->elements[1].item);
3220		newLine->elements[1].item =
3221		sdupprintf("%s%s", rootspec, val);
3222		}
3223		}
3224		}
3225
3226	return 0;	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3227	}	newLine->elements[0].item : "");
3228
3229	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (!entry->lines) {
3230	int fd;	/* first one on the list */
3231	unsigned char bootSect[512];	entry->lines = newLine;
3232	int offset;	} else if (prevLine) {
3233		/* add after prevLine */
3234	fd = open(device, O_RDONLY);	newLine->next = prevLine->next;
3235	if (fd < 0) {	prevLine->next = newLine;
3236	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
3237
3238	if (read(fd, bootSect, 512) != 512) {	return newLine;
3239	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
	close(fd);
3240
3241	/* first three bytes should match, a jmp short should be in there */	/* val may be NULL */
3242	if (memcmp(boot, bootSect, 3))	struct singleLine *addLine(struct singleEntry *entry,
3243	return 0;	struct configFileInfo *cfi,
3244		enum lineType_e type, char *defaultIndent,
3245		const char *val)
3246		{
3247		struct singleLine *line, *prev;
3248		struct keywordTypes *kw;
3249		struct singleLine tmpl;
3250
3251	if (boot[1] == JMP_SHORT_OPCODE) {	/* NB: This function shouldn't allocate items on the heap, rather on
3252	offset = boot[2] + 2;	* the stack since it calls addLineTmpl which will make copies.
	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
	offset = (boot[3] << 8) + boot[2] + 2;
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
3253	*/	*/
3254	if ((bootSect[offset + 1] == NOOP_OPCODE)	if (type == LT_TITLE && cfi->titleBracketed) {
3255	&& (bootSect[offset + 2] == NOOP_OPCODE)) {	/* we're doing a bracketed title (zipl) */
3256	offset = offset + 3;	tmpl.type = type;
3257	}	tmpl.numElements = 1;
3258	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {	tmpl.elements = alloca(sizeof(*tmpl.elements));
3259	offset = (boot[2] << 8) + boot[1] + 2;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3260	} else {	sprintf(tmpl.elements[0].item, "[%s]", val);
3261	return 0;	tmpl.elements[0].indent = "";
3262	}	val = NULL;
3263		} else if (type == LT_MENUENTRY) {
3264		char *lineend = "--class gnu-linux --class gnu --class os {";
3265		if (!val) {
3266		fprintf(stderr,
3267		"Line type LT_MENUENTRY requires a value\n");
3268		abort();
3269		}
3270		kw = getKeywordByType(type, cfi);
3271		if (!kw) {
3272		fprintf(stderr,
3273		"Looking up keyword for unknown type %d\n",
3274		type);
3275		abort();
3276		}
3277		tmpl.indent = "";
3278		tmpl.type = type;
3279		tmpl.numElements = 3;
3280		tmpl.elements =
3281		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3282		tmpl.elements[0].item = kw->key;
3283		tmpl.elements[0].indent = alloca(2);
3284		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3285		tmpl.elements[1].item = (char *)val;
3286		tmpl.elements[1].indent = alloca(2);
3287		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3288		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3289		strcpy(tmpl.elements[2].item, lineend);
3290		tmpl.elements[2].indent = "";
3291		} else {
3292		kw = getKeywordByType(type, cfi);
3293		if (!kw) {
3294		fprintf(stderr,
3295		"Looking up keyword for unknown type %d\n",
3296		type);
3297		abort();
3298		}
3299		tmpl.type = type;
3300		tmpl.numElements = val ? 2 : 1;
3301		tmpl.elements =
3302		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3303		tmpl.elements[0].item = kw->key;
3304		tmpl.elements[0].indent = alloca(2);
3305		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3306		if (val) {
3307		tmpl.elements[1].item = (char *)val;
3308		tmpl.elements[1].indent = "";
3309		}
3310		}
3311
3312	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	/* The last non-empty line gives us the indention to us and the line
3313	return 0;	* to insert after. Note that comments are considered empty lines,
3314		* which may not be ideal? If there are no lines or we are looking at
3315		* the first line, we use defaultIndent (the first line is normally
3316		* indented differently from the rest) */
3317		for (line = entry->lines, prev = NULL; line; line = line->next) {
3318		if (line->numElements)
3319		prev = line;
3320		/* fall back on the last line if prev isn't otherwise set */
3321		if (!line->next && !prev)
3322		prev = line;
3323		}
3324
3325		struct singleLine *menuEntry;
3326		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3327		if (tmpl.type == LT_ENTRY_END) {
3328		if (menuEntry)
3329		tmpl.indent = menuEntry->indent;
3330		else
3331		tmpl.indent = defaultIndent ? : "";
3332		} else if (tmpl.type != LT_MENUENTRY) {
3333		if (menuEntry)
3334		tmpl.indent = "\t";
3335		else if (prev == entry->lines)
3336		tmpl.indent = defaultIndent ? : "";
3337		else
3338		tmpl.indent = prev->indent;
3339		}
3340
3341	return 2;	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3342	}	}
3343
3344	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3345	int fd;	{
3346	char buf[65536];	struct singleLine *prev;
3347	char * end;	int i;
	char * chptr;
	char * chptr2;
	int rc;
3348
3349	/* it's on raid; we need to parse /proc/mdstat and check all of the	for (i = 0; i < line->numElements; i++) {
3350	*raw* devices listed in there */	free(line->elements[i].item);
3351		free(line->elements[i].indent);
3352		}
3353		free(line->elements);
3354		free(line->indent);
3355
3356	if (!strncmp(mdDev, "/dev/", 5))	if (line == entry->lines) {
3357	mdDev += 5;	entry->lines = line->next;
3358		} else {
3359		prev = entry->lines;
3360		while (prev->next != line)
3361		prev = prev->next;
3362		prev->next = line->next;
3363		}
3364
3365	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	free(line);
3366	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	}
	strerror(errno));
	return 2;
	}
3367
3368	rc = read(fd, buf, sizeof(buf) - 1);	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3369	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3370	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	struct singleLine newLine = {
3371	strerror(errno));	.indent = tmplLine->indent,
3372	close(fd);	.type = tmplLine->type,
3373	return 2;	.next = tmplLine->next,
3374	}	};
3375	close(fd);	int firstQuotedItem = -1;
3376	buf[rc] = '\0';	int quoteLen = 0;
3377		int j;
3378		int element = 0;
3379		char *c;
3380
3381	chptr = buf;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3382	while (*chptr) {	strcpy(c, tmplLine->elements[0].item);
3383	end = strchr(chptr, '\n');	insertElement(&newLine, c, element++, cfi);
3384	if (!end) break;	free(c);
3385	*end = '\0';	c = NULL;
3386
3387		for (j = 1; j < tmplLine->numElements; j++) {
3388		if (firstQuotedItem == -1) {
3389		quoteLen += strlen(tmplLine->elements[j].item);
3390
3391		if (isquote(tmplLine->elements[j].item[0])) {
3392		firstQuotedItem = j;
3393		quoteLen +=
3394		strlen(tmplLine->elements[j].indent);
3395		} else {
3396		c = malloc(quoteLen + 1);
3397		strcpy(c, tmplLine->elements[j].item);
3398		insertElement(&newLine, c, element++, cfi);
3399		free(c);
3400		quoteLen = 0;
3401		}
3402		} else {
3403		int itemlen = strlen(tmplLine->elements[j].item);
3404		quoteLen += itemlen;
3405		quoteLen += strlen(tmplLine->elements[j].indent);
3406
3407		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3408		c = malloc(quoteLen + 1);
3409		c[0] = '\0';
3410		for (int i = firstQuotedItem; i < j + 1; i++) {
3411		strcat(c, tmplLine->elements[i].item);
3412		strcat(c, tmplLine->elements[i].indent);
3413		}
3414		insertElement(&newLine, c, element++, cfi);
3415		free(c);
3416
3417		firstQuotedItem = -1;
3418		quoteLen = 0;
3419		}
3420		}
3421		}
3422		while (tmplLine->numElements)
3423		removeElement(tmplLine, 0);
3424		if (tmplLine->elements)
3425		free(tmplLine->elements);
3426
3427		tmplLine->numElements = newLine.numElements;
3428		tmplLine->elements = newLine.elements;
3429		}
3430
3431	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	static void insertElement(struct singleLine *line,
3432	chptr[strlen(mdDev)] == ' ') {	const char *item, int insertHere,
3433		struct configFileInfo *cfi)
3434		{
3435		struct keywordTypes *kw;
3436		char indent[2] = "";
3437
3438	/* found the device */	/* sanity check */
3439	while (*chptr && *chptr != ':') chptr++;	if (insertHere > line->numElements) {
3440	chptr++;	dbgPrintf
3441	while (*chptr && isspace(*chptr)) chptr++;	("insertElement() adjusting insertHere from %d to %d\n",
3442		insertHere, line->numElements);
3443	/* skip the "active" bit */	insertHere = line->numElements;
3444	while (*chptr && !isspace(*chptr)) chptr++;	}
3445	while (*chptr && isspace(*chptr)) chptr++;
3446		line->elements = realloc(line->elements, (line->numElements + 1) *
3447	/* skip the raid level */	sizeof(*line->elements));
3448	while (*chptr && !isspace(*chptr)) chptr++;	memmove(&line->elements[insertHere + 1],
3449	while (*chptr && isspace(*chptr)) chptr++;	&line->elements[insertHere],
3450		(line->numElements - insertHere) * sizeof(*line->elements));
3451	/* everything else is partition stuff */	line->elements[insertHere].item = strdup(item);
3452	while (*chptr) {
3453	chptr2 = chptr;	kw = getKeywordByType(line->type, cfi);
3454	while (*chptr2 && *chptr2 != '[') chptr2++;
3455	if (!*chptr2) break;	if (line->numElements == 0) {
3456		indent[0] = '\0';
3457	/* yank off the numbers at the end */	} else if (insertHere == 0) {
3458	chptr2--;	indent[0] = kw->nextChar;
3459	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	} else if (kw->separatorChar != '\0') {
3460	chptr2++;	indent[0] = kw->separatorChar;
3461	*chptr2 = '\0';	} else {
3462		indent[0] = ' ';
3463	/* 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++;
	}
3464
3465	/*  we're good to go */	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3466	return 2;	/* move the end-of-line forward */
3467		line->elements[insertHere].indent =
3468		line->elements[insertHere - 1].indent;
3469		line->elements[insertHere - 1].indent = strdup(indent);
3470		} else {
3471		line->elements[insertHere].indent = strdup(indent);
3472	}	}
3473
3474	chptr = end + 1;	line->numElements++;
	}
3475
3476	fprintf(stderr,	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3477	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	line->elements[0].item,
3478	mdDev);	line->elements[insertHere].item,
3479	return 0;	line->elements[insertHere].indent, insertHere);
3480	}	}
3481
3482	int checkForLilo(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3483	int fd;	{
3484	unsigned char boot[512];	int i;
	struct singleLine * line;
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3485
3486	if (line->numElements != 2) return 1;	/* sanity check */
3487		if (removeHere >= line->numElements)
3488		return;
3489
3490		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3491		removeHere, line->elements[removeHere].item);
3492
3493		free(line->elements[removeHere].item);
3494
3495		if (removeHere > 1) {
3496		/* previous argument gets this argument's post-indentation */
3497		free(line->elements[removeHere - 1].indent);
3498		line->elements[removeHere - 1].indent =
3499		line->elements[removeHere].indent;
3500		} else {
3501		free(line->elements[removeHere].indent);
3502		}
3503
3504	fd = open("/boot/boot.b", O_RDONLY);	/* now collapse the array, but don't bother to realloc smaller */
3505	if (fd < 0) {	for (i = removeHere; i < line->numElements - 1; i++)
3506	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	line->elements[i] = line->elements[i + 1];
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3507
3508	if (read(fd, boot, 512) != 512) {	line->numElements--;
3509	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
3510	"/boot/boot.b", strerror(errno));
3511	return 1;	int argMatch(const char *one, const char *two)
3512	}	{
3513	close(fd);	char *first, *second;
3514		char *chptr;
3515
3516	if (!strncmp("/dev/md", line->elements[1].item, 7))	first = strcpy(alloca(strlen(one) + 1), one);
3517	return checkLiloOnRaid(line->elements[1].item, boot);	second = strcpy(alloca(strlen(two) + 1), two);
3518
3519	return checkDeviceBootloader(line->elements[1].item, boot);	chptr = strchr(first, '=');
3520		if (chptr)
3521		*chptr = '\0';
3522
3523		chptr = strchr(second, '=');
3524		if (chptr)
3525		*chptr = '\0';
3526
3527		return strcmp(first, second);
3528	}	}
3529
3530	int checkForGrub2(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3531	if (!access("/etc/grub.d/", R_OK))	const char *prefix, const char *addArgs,
3532	return 2;	const char *removeArgs, int multibootArgs)
3533		{
3534		struct singleEntry *entry;
3535		struct singleLine *line, *rootLine;
3536		int index = 0;
3537		int i, k;
3538		const char **newArgs, **oldArgs;
3539		const char **arg;
3540		int useKernelArgs, useRoot;
3541		int firstElement;
3542		int *usedElements;
3543		int doreplace;
3544
3545		if (!image)
3546		return 0;
3547
3548		if (!addArgs) {
3549		newArgs = malloc(sizeof(*newArgs));
3550		*newArgs = NULL;
3551		} else {
3552		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3553		fprintf(stderr,
3554		_("grubby: error separating arguments '%s'\n"),
3555		addArgs);
3556		return 1;
3557		}
3558		}
3559
3560		if (!removeArgs) {
3561		oldArgs = malloc(sizeof(*oldArgs));
3562		*oldArgs = NULL;
3563		} else {
3564		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3565		fprintf(stderr,
3566		_("grubby: error separating arguments '%s'\n"),
3567		removeArgs);
3568		free(newArgs);
3569		return 1;
3570		}
3571		}
3572
3573		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3574		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3575
3576		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3577		&& !multibootArgs);
3578
3579		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3580
3581		if (multibootArgs && !entry->multiboot)
3582		continue;
3583
3584		/* Determine where to put the args.  If this config supports
3585		* LT_KERNELARGS, use that.  Otherwise use
3586		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3587		*/
3588		if (useKernelArgs) {
3589		line = getLineByType(LT_KERNELARGS, entry->lines);
3590		if (!line) {
3591		/* no LT_KERNELARGS, need to add it */
3592		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3593		cfg->secondaryIndent, NULL);
3594		}
3595		firstElement = 1;
3596
3597		} else if (multibootArgs) {
3598		line = getLineByType(LT_HYPER, entry->lines);
3599		if (!line) {
3600		/* a multiboot entry without LT_HYPER? */
3601		continue;
3602		}
3603		firstElement = 2;
3604
3605		} else {
3606		line =
3607		getLineByType(LT_KERNEL | LT_MBMODULE |
3608		LT_KERNEL_EFI | LT_KERNEL_16,
3609		entry->lines);
3610		if (!line) {
3611		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3612		continue;
3613		}
3614		firstElement = 2;
3615		}
3616
3617		/* handle the elilo case which does:
3618		*   append="hypervisor args -- kernel args"
3619		*/
3620		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3621		/* this is a multiboot entry, make sure there's
3622		* -- on the args line
3623		*/
3624		for (i = firstElement; i < line->numElements; i++) {
3625		if (!strcmp(line->elements[i].item, "--"))
3626		break;
3627		}
3628		if (i == line->numElements) {
3629		/* assume all existing args are kernel args,
3630		* prepend -- to make it official
3631		*/
3632		insertElement(line, "--", firstElement,
3633		cfg->cfi);
3634		i = firstElement;
3635		}
3636		if (!multibootArgs) {
3637		/* kernel args start after the -- */
3638		firstElement = i + 1;
3639		}
3640		} else if (cfg->cfi->mbConcatArgs) {
3641		/* this is a non-multiboot entry, remove hyper args */
3642		for (i = firstElement; i < line->numElements; i++) {
3643		if (!strcmp(line->elements[i].item, "--"))
3644		break;
3645		}
3646		if (i < line->numElements) {
3647		/* remove args up to -- */
3648		while (strcmp
3649		(line->elements[firstElement].item,
3650		"--"))
3651		removeElement(line, firstElement);
3652		/* remove -- */
3653		removeElement(line, firstElement);
3654		}
3655		}
3656
3657		usedElements = calloc(line->numElements, sizeof(*usedElements));
3658
3659		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3660
3661		doreplace = 1;
3662		for (i = firstElement; i < line->numElements; i++) {
3663		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3664		!strcmp(line->elements[i].item, "--")) {
3665		/* reached the end of hyper args, insert here */
3666		doreplace = 0;
3667		break;
3668		}
3669		if (usedElements[i])
3670		continue;
3671		if (!argMatch(line->elements[i].item, *arg)) {
3672		usedElements[i] = 1;
3673		break;
3674		}
3675		}
3676
3677		if (i < line->numElements && doreplace) {
3678		/* direct replacement */
3679		free(line->elements[i].item);
3680		line->elements[i].item = strdup(*arg);
3681
3682		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3683		/* root= replacement */
3684		rootLine = getLineByType(LT_ROOT, entry->lines);
3685		if (rootLine) {
3686		free(rootLine->elements[1].item);
3687		rootLine->elements[1].item =
3688		strdup(*arg + 5);
3689		} else {
3690		rootLine =
3691		addLine(entry, cfg->cfi, LT_ROOT,
3692		cfg->secondaryIndent,
3693		*arg + 5);
3694		}
3695		}
3696
3697		else {
3698		/* insert/append */
3699		insertElement(line, *arg, i, cfg->cfi);
3700		usedElements =
3701		realloc(usedElements,
3702		line->numElements *
3703		sizeof(*usedElements));
3704		memmove(&usedElements[i + 1], &usedElements[i],
3705		line->numElements - i - 1);
3706		usedElements[i] = 1;
3707
3708		/* if we updated a root= here even though
3709		* there is a LT_ROOT available we need to
3710		* remove the LT_ROOT entry (this will happen
3711		* if we switch from a device to a label) */
3712		if (useRoot && !strncmp(*arg, "root=", 5)) {
3713		rootLine =
3714		getLineByType(LT_ROOT,
3715		entry->lines);
3716		if (rootLine)
3717		removeLine(entry, rootLine);
3718		}
3719		}
3720		}
3721
3722		free(usedElements);
3723
3724		for (arg = oldArgs; *arg; arg++) {
3725		for (i = firstElement; i < line->numElements; i++) {
3726		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3727		!strcmp(line->elements[i].item, "--"))
3728		/* reached the end of hyper args, stop here */
3729		break;
3730		if (!argMatch(line->elements[i].item, *arg)) {
3731		removeElement(line, i);
3732		break;
3733		}
3734		}
3735		/* handle removing LT_ROOT line too */
3736		if (useRoot && !strncmp(*arg, "root=", 5)) {
3737		rootLine = getLineByType(LT_ROOT, entry->lines);
3738		if (rootLine)
3739		removeLine(entry, rootLine);
3740		}
3741		}
3742
3743		if (line->numElements == 1) {
3744		/* don't need the line at all (note it has to be a
3745		LT_KERNELARGS for this to happen */
3746		removeLine(entry, line);
3747		}
3748		}
3749
3750	return 1;	free(newArgs);
3751		free(oldArgs);
3752
3753		return 0;
3754	}	}
3755
3756	int checkForGrub(struct grubConfig * config) {	int updateImage(struct grubConfig *cfg, const char *image,
3757	int fd;	const char *prefix, const char *addArgs,
3758	unsigned char bootSect[512];	const char *removeArgs,
3759	char * boot;	const char *addMBArgs, const char *removeMBArgs)
3760	int onSuse = isSuseSystem();	{
3761		int rc = 0;
3762
3763		if (!image)
3764		return rc;
3765
3766	if (onSuse) {	/* update the main args first... */
3767	if (parseSuseGrubConf(NULL, &boot))	if (addArgs || removeArgs)
3768	return 0;	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3769	} else {	0);
3770	if (parseSysconfigGrub(NULL, &boot))	if (rc)
3771	return 0;	return rc;
3772	}
3773		/* and now any multiboot args */
3774		if (addMBArgs || removeMBArgs)
3775		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3776		removeMBArgs, 1);
3777		return rc;
3778		}
3779
3780		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3781		const char *image, const char *prefix, const char *initrd,
3782		const char *title)
3783		{
3784		struct singleEntry *entry;
3785		struct singleLine *line, *kernelLine, *endLine = NULL;
3786		int index = 0;
3787
3788		if (!image)
3789		return 0;
3790
3791		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3792		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3793		if (!kernelLine)
3794		continue;
3795
3796		/* if title is supplied, the entry's title must match it. */
3797		if (title) {
3798		char *linetitle;
3799
3800		line =
3801		getLineByType(LT_TITLE | LT_MENUENTRY,
3802		entry->lines);
3803		if (!line)
3804		continue;
3805
3806		linetitle = extractTitle(cfg, line);
3807		if (!linetitle)
3808		continue;
3809		if (strcmp(title, linetitle)) {
3810		free(linetitle);
3811		continue;
3812		}
3813		free(linetitle);
3814		}
3815
3816		if (prefix) {
3817		int prefixLen = strlen(prefix);
3818		if (!strncmp(initrd, prefix, prefixLen))
3819		initrd += prefixLen;
3820		}
3821		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3822		if (endLine)
3823		removeLine(entry, endLine);
3824		line =
3825		addLine(entry, cfg->cfi,
3826		preferredLineType(LT_MBMODULE, cfg->cfi),
3827		kernelLine->indent, initrd);
3828		if (!line)
3829		return 1;
3830		if (endLine) {
3831		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3832		if (!line)
3833		return 1;
3834		}
3835
3836		break;
3837		}
3838
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3839	return 0;	return 0;
3840		}
3841
3842		int updateInitrd(struct grubConfig *cfg, const char *image,
3843		const char *prefix, const char *initrd, const char *title)
3844		{
3845		struct singleEntry *entry;
3846		struct singleLine *line, *kernelLine, *endLine = NULL;
3847		int index = 0;
3848
3849		if (!image)
3850		return 0;
3851
3852		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3853		kernelLine =
3854		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3855		entry->lines);
3856		if (!kernelLine)
3857		continue;
3858
3859		/* if title is supplied, the entry's title must match it. */
3860		if (title) {
3861		char *linetitle;
3862
3863		line =
3864		getLineByType(LT_TITLE | LT_MENUENTRY,
3865		entry->lines);
3866		if (!line)
3867		continue;
3868
3869		linetitle = extractTitle(cfg, line);
3870		if (!linetitle)
3871		continue;
3872		if (strcmp(title, linetitle)) {
3873		free(linetitle);
3874		continue;
3875		}
3876		free(linetitle);
3877		}
3878
3879		line =
3880		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3881		entry->lines);
3882		if (line)
3883		removeLine(entry, line);
3884		if (prefix) {
3885		int prefixLen = strlen(prefix);
3886		if (!strncmp(initrd, prefix, prefixLen))
3887		initrd += prefixLen;
3888		}
3889		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3890		if (endLine)
3891		removeLine(entry, endLine);
3892		enum lineType_e lt;
3893		switch (kernelLine->type) {
3894		case LT_KERNEL:
3895		lt = LT_INITRD;
3896		break;
3897		case LT_KERNEL_EFI:
3898		lt = LT_INITRD_EFI;
3899		break;
3900		case LT_KERNEL_16:
3901		lt = LT_INITRD_16;
3902		break;
3903		default:
3904		lt = preferredLineType(LT_INITRD, cfg->cfi);
3905		}
3906		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3907		if (!line)
3908		return 1;
3909		if (endLine) {
3910		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3911		if (!line)
3912		return 1;
3913		}
3914
3915		break;
3916		}
3917
	fd = open("/boot/grub/stage1", O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3918	return 0;	return 0;
3919		}
3920
3921	if (read(fd, bootSect, 512) != 512) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3922	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3923	"/boot/grub/stage1", strerror(errno));	int fd;
3924	close(fd);	unsigned char bootSect[512];
3925	return 1;	int offset;
3926	}
3927	close(fd);	fd = open(device, O_RDONLY);
3928		if (fd < 0) {
3929		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3930		device, strerror(errno));
3931		return 1;
3932		}
3933
3934	/* The more elaborate checks do not work on SuSE. The checks done	if (read(fd, bootSect, 512) != 512) {
3935	* seem to be reasonble (at least for now), so just return success	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3936	*/	device, strerror(errno));
3937	if (onSuse)	return 1;
3938	return 2;	}
3939		close(fd);
3940
3941		/* first three bytes should match, a jmp short should be in there */
3942		if (memcmp(boot, bootSect, 3))
3943		return 0;
3944
3945	return checkDeviceBootloader(boot, bootSect);	if (boot[1] == JMP_SHORT_OPCODE) {
3946		offset = boot[2] + 2;
3947		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3948		offset = (boot[3] << 8) + boot[2] + 2;
3949		} else if (boot[0] == JMP_SHORT_OPCODE) {
3950		offset = boot[1] + 2;
3951		/*
3952		* it looks like grub, when copying stage1 into the mbr,
3953		* patches stage1 right after the JMP location, replacing
3954		* other instructions such as JMPs for NOOPs. So, relax the
3955		* check a little bit by skipping those different bytes.
3956		*/
3957		if ((bootSect[offset + 1] == NOOP_OPCODE)
3958		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3959		offset = offset + 3;
3960		}
3961		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3962		offset = (boot[2] << 8) + boot[1] + 2;
3963		} else {
3964		return 0;
3965		}
3966
3967		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3968		return 0;
3969
3970		return 2;
3971	}	}
3972
3973	int checkForExtLinux(struct grubConfig * config) {	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3974	int fd;	{
3975	unsigned char bootSect[512];	int fd;
3976	char * boot;	char buf[65536];
3977	char executable[] = "/boot/extlinux/extlinux";	char *end;
3978		char *chptr;
3979		char *chptr2;
3980		int rc;
3981
3982		/* it's on raid; we need to parse /proc/mdstat and check all of the
3983		*raw* devices listed in there */
3984
3985		if (!strncmp(mdDev, "/dev/", 5))
3986		mdDev += 5;
3987
3988		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3989		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3990		strerror(errno));
3991		return 2;
3992		}
3993
3994		rc = read(fd, buf, sizeof(buf) - 1);
3995		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3996		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3997		strerror(errno));
3998		close(fd);
3999		return 2;
4000		}
4001		close(fd);
4002		buf[rc] = '\0';
4003
4004	printf("entered: checkForExtLinux()\n");	chptr = buf;
4005		while (*chptr) {
4006		end = strchr(chptr, '\n');
4007		if (!end)
4008		break;
4009		*end = '\0';
4010
4011	if (parseSysconfigGrub(NULL, &boot))	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4012	return 0;	chptr[strlen(mdDev)] == ' ') {
4013
4014	/* assume grub is not installed -- not an error condition */	/* found the device */
4015	if (!boot)	while (*chptr && *chptr != ':')
4016	return 0;	chptr++;
4017		chptr++;
4018		while (*chptr && isspace(*chptr))
4019		chptr++;
4020
4021		/* skip the "active" bit */
4022		while (*chptr && !isspace(*chptr))
4023		chptr++;
4024		while (*chptr && isspace(*chptr))
4025		chptr++;
4026
4027		/* skip the raid level */
4028		while (*chptr && !isspace(*chptr))
4029		chptr++;
4030		while (*chptr && isspace(*chptr))
4031		chptr++;
4032
4033		/* everything else is partition stuff */
4034		while (*chptr) {
4035		chptr2 = chptr;
4036		while (*chptr2 && *chptr2 != '[')
4037		chptr2++;
4038		if (!*chptr2)
4039		break;
4040
4041		/* yank off the numbers at the end */
4042		chptr2--;
4043		while (isdigit(*chptr2) && chptr2 > chptr)
4044		chptr2--;
4045		chptr2++;
4046		*chptr2 = '\0';
4047
4048		/* Better, now we need the /dev/ back. We're
4049		* done with everything before this point, so
4050		* we can just put the /dev/ part there.
4051		* There will always be room. */
4052		memcpy(chptr - 5, "/dev/", 5);
4053		rc = checkDeviceBootloader(chptr - 5, boot);
4054		if (rc != 2) {
4055		return rc;
4056		}
4057
4058		chptr = chptr2 + 1;
4059		/* skip the [11] bit */
4060		while (*chptr && !isspace(*chptr))
4061		chptr++;
4062		/* and move to the next one */
4063		while (*chptr && isspace(*chptr))
4064		chptr++;
4065		}
4066
4067	fd = open(executable, O_RDONLY);	/*  we're good to go */
4068	if (fd < 0)	return 2;
4069	/* this doesn't exist if grub hasn't been installed */	}
4070
4071		chptr = end + 1;
4072		}
4073
4074		fprintf(stderr,
4075		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4076		mdDev);
4077	return 0;	return 0;
4078		}
4079
4080	if (read(fd, bootSect, 512) != 512) {	int checkForLilo(struct grubConfig *config)
4081	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
4082	executable, strerror(errno));	int fd;
4083	return 1;	unsigned char boot[512];
4084	}	struct singleLine *line;
4085	close(fd);
4086		for (line = config->theLines; line; line = line->next)
4087		if (line->type == LT_BOOT)
4088		break;
4089
4090		if (!line) {
4091		fprintf(stderr,
4092		_
4093		("grubby: no boot line found in lilo configuration\n"));
4094		return 1;
4095		}
4096
4097		if (line->numElements != 2)
4098		return 1;
4099
4100		fd = open("/boot/boot.b", O_RDONLY);
4101		if (fd < 0) {
4102		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4103		"/boot/boot.b", strerror(errno));
4104		return 1;
4105		}
4106
4107	return checkDeviceBootloader(boot, bootSect);	if (read(fd, boot, 512) != 512) {
4108		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4109		"/boot/boot.b", strerror(errno));
4110		return 1;
4111		}
4112		close(fd);
4113
4114		if (!strncmp("/dev/md", line->elements[1].item, 7))
4115		return checkLiloOnRaid(line->elements[1].item, boot);
4116
4117		return checkDeviceBootloader(line->elements[1].item, boot);
4118	}	}
4119
4120	int checkForYaboot(struct grubConfig * config) {	int checkForGrub2(struct grubConfig *config)
4121	/*	{
4122	* This is a simplistic check that we consider good enough for own puporses	if (!access("/etc/grub.d/", R_OK))
4123	*	return 2;
	* If we were to properly check if yaboot is *installed* we'd need to:
	* 1) get the system boot device (LT_BOOT)
	* 2) considering it's a raw filesystem, check if the yaboot binary matches
	*    the content on the boot device
	* 3) if not, copy the binary to a temporary file and run "addnote" on it
	* 4) check again if binary and boot device contents match
	*/
	if (!access("/etc/yaboot.conf", R_OK))
	return 2;
4124
4125	return 1;	return 1;
4126	}	}
4127
4128	int checkForElilo(struct grubConfig * config) {	int checkForGrub(struct grubConfig *config)
4129	if (!access("/etc/elilo.conf", R_OK))	{
4130	return 2;	int fd;
4131		unsigned char bootSect[512];
4132		char *boot;
4133		int onSuse = isSuseSystem();
4134
4135		if (onSuse) {
4136		if (parseSuseGrubConf(NULL, &boot))
4137		return 0;
4138		} else {
4139		if (parseSysconfigGrub(NULL, &boot))
4140		return 0;
4141		}
4142
4143		/* assume grub is not installed -- not an error condition */
4144		if (!boot)
4145		return 0;
4146
4147		fd = open("/boot/grub/stage1", O_RDONLY);
4148		if (fd < 0)
4149		/* this doesn't exist if grub hasn't been installed */
4150		return 0;
4151
4152		if (read(fd, bootSect, 512) != 512) {
4153		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4154		"/boot/grub/stage1", strerror(errno));
4155		close(fd);
4156		return 1;
4157		}
4158		close(fd);
4159
4160	return 1;	/* The more elaborate checks do not work on SuSE. The checks done
4161		* seem to be reasonble (at least for now), so just return success
4162		*/
4163		if (onSuse)
4164		return 2;
4165
4166		return checkDeviceBootloader(boot, bootSect);
4167	}	}
4168
4169	static char * getRootSpecifier(char * str) {	int checkForExtLinux(struct grubConfig *config)
4170	char * idx, * rootspec = NULL;	{
4171		int fd;
4172		unsigned char bootSect[512];
4173		char *boot;
4174		char executable[] = "/boot/extlinux/extlinux";
4175
4176		printf("entered: checkForExtLinux()\n");
4177
4178	if (*str == '(') {	if (parseSysconfigGrub(NULL, &boot))
4179	idx = rootspec = strdup(str);	return 0;
4180	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
4181	*(++idx) = '\0';	/* assume grub is not installed -- not an error condition */
4182	}	if (!boot)
4183	return rootspec;	return 0;
4184
4185		fd = open(executable, O_RDONLY);
4186		if (fd < 0)
4187		/* this doesn't exist if grub hasn't been installed */
4188		return 0;
4189
4190		if (read(fd, bootSect, 512) != 512) {
4191		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4192		executable, strerror(errno));
4193		return 1;
4194		}
4195		close(fd);
4196
4197		return checkDeviceBootloader(boot, bootSect);
4198	}	}
4199
4200	static char * getInitrdVal(struct grubConfig * config,	int checkForYaboot(struct grubConfig *config)
4201	const char * prefix, struct singleLine *tmplLine,	{
4202	const char * newKernelInitrd,	/*
4203	const char ** extraInitrds, int extraInitrdCount)	* This is a simplistic check that we consider good enough for own puporses
4204	{	*
4205	char *initrdVal, *end;	* If we were to properly check if yaboot is *installed* we'd need to:
4206	int i;	* 1) get the system boot device (LT_BOOT)
4207	size_t totalSize;	* 2) considering it's a raw filesystem, check if the yaboot binary matches
4208	size_t prefixLen;	*    the content on the boot device
4209	char separatorChar;	* 3) if not, copy the binary to a temporary file and run "addnote" on it
4210		* 4) check again if binary and boot device contents match
4211	prefixLen = strlen(prefix);	*/
4212	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	if (!access("/etc/yaboot.conf", R_OK))
4213		return 2;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4214
4215	initrdVal = end = malloc(totalSize);	return 1;
4216		}
4217
4218	end = stpcpy (end, newKernelInitrd + prefixLen);	int checkForElilo(struct grubConfig *config)
4219		{
4220		if (!access("/etc/elilo.conf", R_OK))
4221		return 2;
4222
4223	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	return 1;
4224	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
4225
4226	extraInitrd = extraInitrds[i] + prefixLen;	static char *getRootSpecifier(char *str)
4227	/* Don't add entries that are already there */	{
4228	if (tmplLine != NULL) {	char *idx, *rootspec = NULL;
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4229
4230	if (j != tmplLine->numElements)	if (*str == '(') {
4231	continue;	idx = rootspec = strdup(str);
4232		while (*idx && (*idx != ')') && (!isspace(*idx)))
4233		idx++;
4234		*(++idx) = '\0';
4235	}	}
4236		return rootspec;
4237		}
4238
4239	*end++ = separatorChar;	static char *getInitrdVal(struct grubConfig *config,
4240	end = stpcpy(end, extraInitrd);	const char *prefix, struct singleLine *tmplLine,
4241	}	const char *newKernelInitrd,
4242		const char **extraInitrds, int extraInitrdCount)
4243		{
4244		char *initrdVal, *end;
4245		int i;
4246		size_t totalSize;
4247		size_t prefixLen;
4248		char separatorChar;
4249
4250		prefixLen = strlen(prefix);
4251		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4252
4253		for (i = 0; i < extraInitrdCount; i++) {
4254		totalSize += sizeof(separatorChar);
4255		totalSize += strlen(extraInitrds[i]) - prefixLen;
4256		}
4257
4258		initrdVal = end = malloc(totalSize);
4259
4260		end = stpcpy(end, newKernelInitrd + prefixLen);
4261
4262		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4263		for (i = 0; i < extraInitrdCount; i++) {
4264		const char *extraInitrd;
4265		int j;
4266
4267		extraInitrd = extraInitrds[i] + prefixLen;
4268		/* Don't add entries that are already there */
4269		if (tmplLine != NULL) {
4270		for (j = 2; j < tmplLine->numElements; j++)
4271		if (strcmp
4272		(extraInitrd,
4273		tmplLine->elements[j].item) == 0)
4274		break;
4275
4276	return initrdVal;	if (j != tmplLine->numElements)
4277		continue;
4278		}
4279
4280		*end++ = separatorChar;
4281		end = stpcpy(end, extraInitrd);
4282		}
4283
4284		return initrdVal;
4285	}	}
4286
4287	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4288	const char * prefix,	const char *prefix,
4289	const char * newKernelPath, const char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4290	const char * newKernelArgs, const char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4291	const char ** extraInitrds, int extraInitrdCount,	const char **extraInitrds, int extraInitrdCount,
4292	const char * newMBKernel, const char * newMBKernelArgs) {	const char *newMBKernel, const char *newMBKernelArgs,
4293	struct singleEntry * new;	const char *newDevTreePath, int newIndex)
4294	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	{
4295	int needs;	struct singleEntry *new, *entry, *prev = NULL;
4296	char * chptr;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4297		int needs;
4298	if (!newKernelPath) return 0;	char *indexs;
4299		char *chptr;
4300	/* if the newKernelTitle is too long silently munge it into something	int rc;
4301	* we can live with. truncating is first check, then we'll just mess with
4302	* it until it looks better */	if (!newKernelPath)
4303	if (config->cfi->maxTitleLength &&	return 0;
4304
4305		rc = asprintf(&indexs, "%d", newIndex);
4306		if (rc < 0)
4307		return 1;
4308
4309		/* if the newKernelTitle is too long silently munge it into something
4310		* we can live with. truncating is first check, then we'll just mess with
4311		* it until it looks better */
4312		if (config->cfi->maxTitleLength &&
4313	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4314	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4315	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4316	int i = 1;	int i = 1;
4317
4318		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4319		newKernelTitle);
4320		while (findEntryByPath(config, buf, NULL, NULL)) {
4321		sprintf(numBuf, "%d", i++);
4322		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4323		}
4324
4325	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	newKernelTitle = buf + 6;
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4326	}	}
4327
4328	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4329	}	new->skip = 0;
4330		new->multiboot = 0;
4331		new->lines = NULL;
4332		entry = config->entries;
4333		for (unsigned int i = 0; i < newIndex; i++) {
4334		if (!entry)
4335		break;
4336		prev = entry;
4337		entry = entry->next;
4338		}
4339		new->next = entry;
4340
4341	new = malloc(sizeof(*new));	if (prev)
4342	new->skip = 0;	prev->next = new;
4343	new->multiboot = 0;	else
4344	new->next = config->entries;	config->entries = new;
	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;
	}
4345
4346	if (template) {	/* copy/update from the template */
4347	for (masterLine = template->lines;	needs = NEED_KERNEL | NEED_TITLE;
4348	masterLine && (tmplLine = lineDup(masterLine));	if (newKernelInitrd)
4349	lineFree(tmplLine), masterLine = masterLine->next)	needs |= NEED_INITRD;
4350	{	if (newMBKernel) {
4351	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	needs |= NEED_MB;
4352		new->multiboot = 1;
4353	/* skip comments */	}
4354	chptr = tmplLine->indent;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4355	while (*chptr && isspace(*chptr)) chptr++;	needs |= NEED_DEVTREE;
4356	if (*chptr == '#') continue;
4357		if (template) {
4358	if (tmplLine->type == LT_KERNEL &&	for (masterLine = template->lines;
4359	tmplLine->numElements >= 2) {	masterLine && (tmplLine = lineDup(masterLine));
4360	if (!template->multiboot && (needs & NEED_MB)) {	lineFree(tmplLine), masterLine = masterLine->next) {
4361	/* it's not a multiboot template and this is the kernel	dbgPrintf("addNewKernel processing %d\n",
4362	* line.  Try to be intelligent about inserting the	tmplLine->type);
4363	* hypervisor at the same time.
4364	*/	/* skip comments */
4365	if (config->cfi->mbHyperFirst) {	chptr = tmplLine->indent;
4366	/* insert the hypervisor first */	while (*chptr && isspace(*chptr))
4367	newLine = addLine(new, config->cfi, LT_HYPER,	chptr++;
4368	tmplLine->indent,	if (*chptr == '#')
4369	newMBKernel + strlen(prefix));	continue;
4370	/* set up for adding the kernel line */
4371	free(tmplLine->indent);	if (iskernel(tmplLine->type)
4372	tmplLine->indent = strdup(config->secondaryIndent);	&& tmplLine->numElements >= 2) {
4373	needs &= ~NEED_MB;	if (!template->multiboot && (needs & NEED_MB)) {
4374	}	/* it's not a multiboot template and
4375	if (needs & NEED_KERNEL) {	* this is the kernel line.  Try to
4376	/* use addLineTmpl to preserve line elements,	* be intelligent about inserting the
4377	* otherwise we could just call addLine.  Unfortunately	* hypervisor at the same time.
4378	* this means making some changes to the template	*/
4379	* such as the indent change above and the type	if (config->cfi->mbHyperFirst) {
4380	* change below.	/* insert the hypervisor first */
4381	*/	newLine =
4382	struct keywordTypes * mbm_kw =	addLine(new, config->cfi,
4383	getKeywordByType(LT_MBMODULE, config->cfi);	LT_HYPER,
4384	if (mbm_kw) {	tmplLine->indent,
4385	tmplLine->type = LT_MBMODULE;	newMBKernel +
4386	free(tmplLine->elements[0].item);	strlen(prefix));
4387	tmplLine->elements[0].item = strdup(mbm_kw->key);	/* set up for adding the
4388	}	* kernel line */
4389	newLine = addLineTmpl(new, tmplLine, newLine,	free(tmplLine->indent);
4390	newKernelPath + strlen(prefix), config->cfi);	tmplLine->indent =
4391	needs &= ~NEED_KERNEL;	strdup(config->
4392	}	secondaryIndent);
4393	if (needs & NEED_MB) { /* !mbHyperFirst */	needs &= ~NEED_MB;
4394	newLine = addLine(new, config->cfi, LT_HYPER,	}
4395	config->secondaryIndent,	if (needs & NEED_KERNEL) {
4396	newMBKernel + strlen(prefix));	/* use addLineTmpl to
4397	needs &= ~NEED_MB;	* preserve line elements,
4398	}	* otherwise we could just
4399	} else if (needs & NEED_KERNEL) {	* call addLine.
4400	newLine = addLineTmpl(new, tmplLine, newLine,	* Unfortunately this means
4401	newKernelPath + strlen(prefix), config->cfi);	* making some changes to the
4402	needs &= ~NEED_KERNEL;	* template such as the
4403	}	* indent change above and
4404		* the type change below.
4405	} else if (tmplLine->type == LT_HYPER &&	*/
4406	tmplLine->numElements >= 2) {	struct keywordTypes *mbm_kw =
4407	if (needs & NEED_MB) {	getKeywordByType
4408	newLine = addLineTmpl(new, tmplLine, newLine,	(LT_MBMODULE, config->cfi);
4409	newMBKernel + strlen(prefix), config->cfi);	if (mbm_kw) {
4410	needs &= ~NEED_MB;	tmplLine->type =
4411	}	LT_MBMODULE;
4412		free(tmplLine->
4413	} else if (tmplLine->type == LT_MBMODULE &&	elements[0].item);
4414	tmplLine->numElements >= 2) {	tmplLine->elements[0].
4415	if (new->multiboot) {	item =
4416	if (needs & NEED_KERNEL) {	strdup(mbm_kw->key);
4417	newLine = addLineTmpl(new, tmplLine, newLine,	}
4418	newKernelPath +	newLine =
4419	strlen(prefix), config->cfi);	addLineTmpl(new, tmplLine,
4420	needs &= ~NEED_KERNEL;	newLine,
4421	} else if (config->cfi->mbInitRdIsModule &&	newKernelPath +
4422	(needs & NEED_INITRD)) {	strlen(prefix),
4423	char *initrdVal;	config->cfi);
4424	initrdVal = getInitrdVal(config, prefix, tmplLine,	needs &= ~NEED_KERNEL;
4425	newKernelInitrd, extraInitrds,	}
4426	extraInitrdCount);	if (needs & NEED_MB) { /* !mbHyperFirst */
4427	newLine = addLineTmpl(new, tmplLine, newLine,	newLine =
4428	initrdVal, config->cfi);	addLine(new, config->cfi,
4429	free(initrdVal);	LT_HYPER,
4430	needs &= ~NEED_INITRD;	config->
4431	}	secondaryIndent,
4432	} else if (needs & NEED_KERNEL) {	newMBKernel +
4433	/* template is multi but new is not,	strlen(prefix));
4434	* insert the kernel in the first module slot	needs &= ~NEED_MB;
4435	*/	}
4436	tmplLine->type = LT_KERNEL;	} else if (needs & NEED_KERNEL) {
4437	free(tmplLine->elements[0].item);	newLine =
4438	tmplLine->elements[0].item =	addLineTmpl(new, tmplLine, newLine,
4439	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);	newKernelPath +
4440	newLine = addLineTmpl(new, tmplLine, newLine,	strlen(prefix),
4441	newKernelPath + strlen(prefix), config->cfi);	config->cfi);
4442	needs &= ~NEED_KERNEL;	needs &= ~NEED_KERNEL;
4443	} 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);
	}
	}
4444
4445	} else {	} else if (tmplLine->type == LT_HYPER &&
4446	/* don't have a template, so start the entry with the	tmplLine->numElements >= 2) {
4447	* appropriate starting line	if (needs & NEED_MB) {
4448	*/	newLine =
4449	switch (config->cfi->entryStart) {	addLineTmpl(new, tmplLine, newLine,
4450	case LT_KERNEL:	newMBKernel +
4451	if (new->multiboot && config->cfi->mbHyperFirst) {	strlen(prefix),
4452	/* fall through to LT_HYPER */	config->cfi);
4453	} else {	needs &= ~NEED_MB;
4454	newLine = addLine(new, config->cfi, LT_KERNEL,	}
4455	config->primaryIndent,
4456	newKernelPath + strlen(prefix));	} else if (tmplLine->type == LT_MBMODULE &&
4457	needs &= ~NEED_KERNEL;	tmplLine->numElements >= 2) {
4458	break;	if (new->multiboot) {
4459		if (needs & NEED_KERNEL) {
4460		newLine =
4461		addLineTmpl(new, tmplLine,
4462		newLine,
4463		newKernelPath +
4464		strlen(prefix),
4465		config->cfi);
4466		needs &= ~NEED_KERNEL;
4467		} else if (config->cfi->mbInitRdIsModule
4468		&& (needs & NEED_INITRD)) {
4469		char *initrdVal;
4470		initrdVal =
4471		getInitrdVal(config, prefix,
4472		tmplLine,
4473		newKernelInitrd,
4474		extraInitrds,
4475		extraInitrdCount);
4476		newLine =
4477		addLineTmpl(new, tmplLine,
4478		newLine,
4479		initrdVal,
4480		config->cfi);
4481		free(initrdVal);
4482		needs &= ~NEED_INITRD;
4483		}
4484		} else if (needs & NEED_KERNEL) {
4485		/* template is multi but new is not,
4486		* insert the kernel in the first
4487		* module slot
4488		*/
4489		tmplLine->type =
4490		preferredLineType(LT_KERNEL,
4491		config->cfi);
4492		free(tmplLine->elements[0].item);
4493		tmplLine->elements[0].item =
4494		strdup(getKeywordByType
4495		(tmplLine->type,
4496		config->cfi)->key);
4497		newLine =
4498		addLineTmpl(new, tmplLine, newLine,
4499		newKernelPath +
4500		strlen(prefix),
4501		config->cfi);
4502		needs &= ~NEED_KERNEL;
4503		} else if (needs & NEED_INITRD) {
4504		char *initrdVal;
4505		/* template is multi but new is not,
4506		* insert the initrd in the second
4507		* module slot
4508		*/
4509		tmplLine->type =
4510		preferredLineType(LT_INITRD,
4511		config->cfi);
4512		free(tmplLine->elements[0].item);
4513		tmplLine->elements[0].item =
4514		strdup(getKeywordByType
4515		(tmplLine->type,
4516		config->cfi)->key);
4517		initrdVal =
4518		getInitrdVal(config, prefix,
4519		tmplLine,
4520		newKernelInitrd,
4521		extraInitrds,
4522		extraInitrdCount);
4523		newLine =
4524		addLineTmpl(new, tmplLine, newLine,
4525		initrdVal, config->cfi);
4526		free(initrdVal);
4527		needs &= ~NEED_INITRD;
4528		}
4529
4530		} else if (isinitrd(tmplLine->type)
4531		&& tmplLine->numElements >= 2) {
4532		if (needs & NEED_INITRD && new->multiboot
4533		&& !template->multiboot
4534		&& config->cfi->mbInitRdIsModule) {
4535		/* make sure we don't insert the
4536		* module initrd before the module
4537		* kernel... if we don't do it here,
4538		* it will be inserted following the
4539		* template.
4540		*/
4541		if (!needs & NEED_KERNEL) {
4542		char *initrdVal;
4543
4544		initrdVal =
4545		getInitrdVal(config, prefix,
4546		tmplLine,
4547		newKernelInitrd,
4548		extraInitrds,
4549		extraInitrdCount);
4550		newLine =
4551		addLine(new, config->cfi,
4552		LT_MBMODULE,
4553		config->
4554		secondaryIndent,
4555		initrdVal);
4556		free(initrdVal);
4557		needs &= ~NEED_INITRD;
4558		}
4559		} else if (needs & NEED_INITRD) {
4560		char *initrdVal;
4561		initrdVal =
4562		getInitrdVal(config, prefix,
4563		tmplLine,
4564		newKernelInitrd,
4565		extraInitrds,
4566		extraInitrdCount);
4567		newLine =
4568		addLineTmpl(new, tmplLine, newLine,
4569		initrdVal, config->cfi);
4570		free(initrdVal);
4571		needs &= ~NEED_INITRD;
4572		}
4573
4574		} else if (tmplLine->type == LT_MENUENTRY &&
4575		(needs & NEED_TITLE)) {
4576		requote(tmplLine, config->cfi);
4577		char *nkt = malloc(strlen(newKernelTitle) + 3);
4578		strcpy(nkt, "'");
4579		strcat(nkt, newKernelTitle);
4580		strcat(nkt, "'");
4581		newLine =
4582		addLineTmpl(new, tmplLine, newLine, nkt,
4583		config->cfi);
4584		free(nkt);
4585		needs &= ~NEED_TITLE;
4586		} else if (tmplLine->type == LT_TITLE &&
4587		(needs & NEED_TITLE)) {
4588		if (tmplLine->numElements >= 2) {
4589		newLine =
4590		addLineTmpl(new, tmplLine, newLine,
4591		newKernelTitle,
4592		config->cfi);
4593		needs &= ~NEED_TITLE;
4594		} else if (tmplLine->numElements == 1 &&
4595		config->cfi->titleBracketed) {
4596		/* addLineTmpl doesn't handle
4597		* titleBracketed */
4598		newLine =
4599		addLine(new, config->cfi, LT_TITLE,
4600		tmplLine->indent,
4601		newKernelTitle);
4602		needs &= ~NEED_TITLE;
4603		}
4604		} else if (tmplLine->type == LT_ECHO) {
4605		requote(tmplLine, config->cfi);
4606		static const char *prefix = "'Loading ";
4607		if (tmplLine->numElements > 1 &&
4608		strstr(tmplLine->elements[1].item, prefix)
4609		&& masterLine->next
4610		&& iskernel(masterLine->next->type)) {
4611		char *newTitle =
4612		malloc(strlen(prefix) +
4613		strlen(newKernelTitle) + 2);
4614
4615		strcpy(newTitle, prefix);
4616		strcat(newTitle, newKernelTitle);
4617		strcat(newTitle, "'");
4618		newLine =
4619		addLine(new, config->cfi, LT_ECHO,
4620		tmplLine->indent, newTitle);
4621		free(newTitle);
4622		} else {
4623		/* pass through other lines from the
4624		* template */
4625		newLine =
4626		addLineTmpl(new, tmplLine, newLine,
4627		NULL, config->cfi);
4628		}
4629		} else if (tmplLine->type == LT_DEVTREE &&
4630		tmplLine->numElements == 2
4631		&& newDevTreePath) {
4632		newLine =
4633		addLineTmpl(new, tmplLine, newLine,
4634		newDevTreePath + strlen(prefix),
4635		config->cfi);
4636		needs &= ~NEED_DEVTREE;
4637		} else if (tmplLine->type == LT_ENTRY_END
4638		&& needs & NEED_DEVTREE) {
4639		const char *ndtp = newDevTreePath;
4640		if (!strncmp
4641		(newDevTreePath, prefix, strlen(prefix)))
4642		ndtp += strlen(prefix);
4643		newLine = addLine(new, config->cfi, LT_DEVTREE,
4644		config->secondaryIndent,
4645		ndtp);
4646		needs &= ~NEED_DEVTREE;
4647		newLine =
4648		addLineTmpl(new, tmplLine, newLine, NULL,
4649		config->cfi);
4650		} else {
4651		/* pass through other lines from the template */
4652		newLine =
4653		addLineTmpl(new, tmplLine, newLine, NULL,
4654		config->cfi);
4655		}
4656	}	}
4657
4658	case LT_HYPER:	} else {
4659	newLine = addLine(new, config->cfi, LT_HYPER,	/* don't have a template, so start the entry with the
4660	config->primaryIndent,	* appropriate starting line
4661	newMBKernel + strlen(prefix));	*/
4662	needs &= ~NEED_MB;	switch (config->cfi->entryStart) {
4663	break;	case LT_KERNEL:
4664		case LT_KERNEL_EFI:
4665		case LT_KERNEL_16:
4666		if (new->multiboot && config->cfi->mbHyperFirst) {
4667		/* fall through to LT_HYPER */
4668		} else {
4669		newLine = addLine(new, config->cfi,
4670		preferredLineType(LT_KERNEL,
4671		config->
4672		cfi),
4673		config->primaryIndent,
4674		newKernelPath +
4675		strlen(prefix));
4676		needs &= ~NEED_KERNEL;
4677		break;
4678		}
4679
4680	case LT_MENUENTRY: {	case LT_HYPER:
4681	char *nkt = malloc(strlen(newKernelTitle)+3);	newLine = addLine(new, config->cfi, LT_HYPER,
4682	strcpy(nkt, "'");	config->primaryIndent,
4683	strcat(nkt, newKernelTitle);	newMBKernel + strlen(prefix));
4684	strcat(nkt, "'");	needs &= ~NEED_MB;
4685	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
4686	config->primaryIndent, nkt);
4687	free(nkt);	case LT_MENUENTRY:{
4688	needs &= ~NEED_TITLE;	char *nkt = malloc(strlen(newKernelTitle) + 3);
4689	needs |= NEED_END;	strcpy(nkt, "'");
4690	break;	strcat(nkt, newKernelTitle);
4691	}	strcat(nkt, "'");
4692	case LT_TITLE:	newLine =
4693	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	addLine(new, config->cfi, LT_MENUENTRY,
4694	char * templabel;	config->primaryIndent, nkt);
4695	int x = 0, y = 0;	free(nkt);
4696		needs &= ~NEED_TITLE;
4697	templabel = strdup(newKernelTitle);	needs |= NEED_END;
4698	while( templabel[x]){	break;
4699	if( templabel[x] == ' ' ){	}
4700	y = x;	case LT_TITLE:
4701	while( templabel[y] ){	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4702	templabel[y] = templabel[y+1];	char *templabel;
4703	y++;	int x = 0, y = 0;
4704
4705		templabel = strdup(newKernelTitle);
4706		while (templabel[x]) {
4707		if (templabel[x] == ' ') {
4708		y = x;
4709		while (templabel[y]) {
4710		templabel[y] =
4711		templabel[y + 1];
4712		y++;
4713		}
4714	}	}
4715		x++;
4716	}	}
4717	x++;	newLine = addLine(new, config->cfi, LT_TITLE,
4718		config->primaryIndent,
4719		templabel);
4720		free(templabel);
4721		} else {
4722		newLine = addLine(new, config->cfi, LT_TITLE,
4723		config->primaryIndent,
4724		newKernelTitle);
4725	}	}
4726	newLine = addLine(new, config->cfi, LT_TITLE,	needs &= ~NEED_TITLE;
4727	config->primaryIndent, templabel);	break;
4728	free(templabel);
4729	}else{	default:
4730	newLine = addLine(new, config->cfi, LT_TITLE,	abort();
	config->primaryIndent, newKernelTitle);
4731	}	}
4732	needs &= ~NEED_TITLE;	}
	break;
4733
4734	default:	struct singleLine *endLine = NULL;
4735	abort();	endLine = getLineByType(LT_ENTRY_END, new->lines);
4736		if (endLine) {
4737		removeLine(new, endLine);
4738		needs |= NEED_END;
4739	}	}
	}
4740
4741	/* add the remainder of the lines, i.e. those that either	/* add the remainder of the lines, i.e. those that either
4742	* weren't present in the template, or in the case of no template,	* weren't present in the template, or in the case of no template,
4743	* all the lines following the entryStart.	* all the lines following the entryStart.
4744	*/	*/
4745	if (needs & NEED_TITLE) {	if (needs & NEED_TITLE) {
4746	newLine = addLine(new, config->cfi, LT_TITLE,	newLine = addLine(new, config->cfi, LT_TITLE,
4747	config->secondaryIndent,	config->secondaryIndent, newKernelTitle);
4748	newKernelTitle);	needs &= ~NEED_TITLE;
4749	needs &= ~NEED_TITLE;	}
4750	}	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4751	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {	newLine = addLine(new, config->cfi, LT_HYPER,
4752	newLine = addLine(new, config->cfi, LT_HYPER,	config->secondaryIndent,
4753	config->secondaryIndent,	newMBKernel + strlen(prefix));
4754	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4755	needs &= ~NEED_MB;	}
4756	}	if (needs & NEED_KERNEL) {
4757	if (needs & NEED_KERNEL) {	newLine = addLine(new, config->cfi,
4758	newLine = addLine(new, config->cfi,	(new->multiboot
4759	(new->multiboot && getKeywordByType(LT_MBMODULE,	&& getKeywordByType(LT_MBMODULE,
4760	config->cfi)) ?	config->cfi))
4761	LT_MBMODULE : LT_KERNEL,	? LT_MBMODULE : preferredLineType(LT_KERNEL,
4762	config->secondaryIndent,	config->
4763	newKernelPath + strlen(prefix));	cfi),
4764	needs &= ~NEED_KERNEL;	config->secondaryIndent,
4765	}	newKernelPath + strlen(prefix));
4766	if (needs & NEED_MB) {	needs &= ~NEED_KERNEL;
4767	newLine = addLine(new, config->cfi, LT_HYPER,	}
4768	config->secondaryIndent,	if (needs & NEED_MB) {
4769	newMBKernel + strlen(prefix));	newLine = addLine(new, config->cfi, LT_HYPER,
4770	needs &= ~NEED_MB;	config->secondaryIndent,
4771	}	newMBKernel + strlen(prefix));
4772	if (needs & NEED_INITRD) {	needs &= ~NEED_MB;
4773	char *initrdVal;	}
4774	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);	if (needs & NEED_INITRD) {
4775	newLine = addLine(new, config->cfi,	char *initrdVal;
4776	(new->multiboot && getKeywordByType(LT_MBMODULE,	initrdVal =
4777	config->cfi)) ?	getInitrdVal(config, prefix, NULL, newKernelInitrd,
4778	LT_MBMODULE : LT_INITRD,	extraInitrds, extraInitrdCount);
4779	config->secondaryIndent,	newLine =
4780	initrdVal);	addLine(new, config->cfi,
4781	free(initrdVal);	(new->multiboot
4782	needs &= ~NEED_INITRD;	&& getKeywordByType(LT_MBMODULE, config->cfi))
4783	}	? LT_MBMODULE : preferredLineType(LT_INITRD,
4784	if (needs & NEED_END) {	config->cfi),
4785	newLine = addLine(new, config->cfi, LT_ENTRY_END,	config->secondaryIndent, initrdVal);
4786	config->secondaryIndent, NULL);	free(initrdVal);
4787	needs &= ~NEED_END;	needs &= ~NEED_INITRD;
4788	}	}
4789		if (needs & NEED_DEVTREE) {
4790		newLine = addLine(new, config->cfi, LT_DEVTREE,
4791		config->secondaryIndent, newDevTreePath);
4792		needs &= ~NEED_DEVTREE;
4793		}
4794
4795		/* NEEDS_END must be last on bootloaders that need it... */
4796		if (needs & NEED_END) {
4797		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4798		config->secondaryIndent, NULL);
4799		needs &= ~NEED_END;
4800		}
4801
4802	if (needs) {	if (needs) {
4803	printf(_("grubby: needs=%d, aborting\n"), needs);	printf(_("grubby: needs=%d, aborting\n"), needs);
4804	abort();	abort();
4805	}	}
4806
4807	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4808	newMBKernelArgs, NULL)) return 1;	newMBKernelArgs, NULL)) {
4809		config->isModified = 1;
4810		return 1;
4811		}
4812
4813	return 0;	return 0;
4814	}	}
4815
4816	static void traceback(int signum)	int main(int argc, const char **argv)
4817	{	{
4818	void *array[40];	poptContext optCon;
4819	size_t size;	const char *grubConfig = NULL;
4820		char *outputFile = NULL;
4821	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4822	memset(array, '\0', sizeof (array));	int flags = 0;
4823	size = backtrace(array, 40);	int badImageOkay = 0;
4824		int configureGrub2 = 0;
4825	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4826	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4827	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4828	exit(1);	int bootloaderProbe = 0;
4829	}	int extraInitrdCount = 0;
4830		char *updateKernelPath = NULL;
4831	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4832	poptContext optCon;	char *removeKernelPath = NULL;
4833	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4834	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4835	int arg = 0;	char *newKernelTitle = NULL;
4836	int flags = 0;	char *newDevTreePath = NULL;
4837	int badImageOkay = 0;	char *newMBKernel = NULL;
4838	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4839	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4840	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4841	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4842	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4843	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4844	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4845	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4846	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4847	char * newKernelArgs = NULL;	char *envPath = NULL;
4848	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4849	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4850	char * newKernelVersion = NULL;	struct grubConfig *config;
4851	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4852	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4853	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4854	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4855	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4856	char * defaultKernel = NULL;	int defaultIndex = -1;
4857	char * removeArgs = NULL;	struct poptOption options[] = {
4858	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4859	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4860	const char * chptr = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4861	struct configFileInfo * cfi = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4862	struct grubConfig * config;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4863	struct singleEntry * template = NULL;	_("default arguments for the new kernel or new arguments for "
4864	int copyDefault = 0, makeDefault = 0;	"kernel being updated"), _("args")},
4865	int displayDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4866	int displayDefaultIndex = 0;	_("default arguments for the new multiboot kernel or "
4867	int displayDefaultTitle = 0;	"new arguments for multiboot kernel being updated"), NULL},
4868	int defaultIndex = -1;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4869	struct poptOption options[] = {	_
4870	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	("don't sanity check images in boot entries (for testing only)"),
4871	_("add an entry for the specified kernel"), _("kernel-path") },	NULL},
4872	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4873	_("add an entry for the specified multiboot kernel"), NULL },	_
4874	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	("filesystem which contains /boot directory (for testing only)"),
4875	_("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") },
4876	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4877	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4878	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4879	#endif	#endif
4880	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4881	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4882	_("path") },	_("path")},
4883	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4884	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4885	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4886	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4887	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4888	"template"), NULL },	"template"), NULL},
4889	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4890	_("print debugging information for failures") },	_("print debugging information for failures")},
4891	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4892	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4893	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4894	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4895	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4896	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4897	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4899	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4900	_("configure extlinux bootloader (from syslinux)") },	_("device tree directory for new stanza"), _("dtb-path")},
4901	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4902	_("configure grub bootloader") },	_("configure elilo bootloader")},
4903	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4904	_("configure grub2 bootloader") },	_("force grub2 stanzas to use efi")},
4905	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4906	_("display boot information for specified kernel"),	_("path for environment data"),
4907	_("kernel-path") },	_("path")},
4908	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4909	_("initrd image for the new kernel"), _("initrd-path") },	_("configure extlinux bootloader (from syslinux)")},
4910	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4911	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	_("configure grub bootloader")},
4912	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4913	_("configure lilo bootloader") },	_("configure grub2 bootloader")},
4914	{ "make-default", 0, 0, &makeDefault, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4915	_("make the newly added entry the default boot entry"), NULL },	_("display boot information for specified kernel"),
4916	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("kernel-path")},
4917	_("path to output updated config file (\"-\" for stdout)"),	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4918	_("path") },	_("initrd image for the new kernel"), _("initrd-path")},
4919	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4920	_("remove kernel arguments"), NULL },	_
4921	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	("auxiliary initrd image for things other than the new kernel"),
4922	_("remove multiboot kernel arguments"), NULL },	_("initrd-path")},
4923	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4924	_("remove all entries for the specified kernel"),	_("configure lilo bootloader")},
4925	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4926	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("make the newly added entry the default boot entry"), NULL},
4927	_("remove all entries for the specified multiboot kernel"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4928	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("path to output updated config file (\"-\" for stdout)"),
4929	_("make the first entry referencing the specified kernel "	_("path")},
4930	"the default"), _("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4931	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("remove kernel arguments"), NULL},
4932	_("make the given entry index the default entry"),	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4933	_("entry-index") },	_("remove multiboot kernel arguments"), NULL},
4934	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4935	_("configure silo bootloader") },	_("remove all entries for the specified kernel"),
4936	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("kernel-path")},
4937	_("title to use for the new kernel entry"), _("entry-title") },	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4938	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	_("remove all entries for the specified multiboot kernel"),
4939	_("updated information for the specified kernel"),	NULL},
4940	_("kernel-path") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4941	{ "version", 'v', 0, NULL, 'v',	_("make the first entry referencing the specified kernel "
4942	_("print the version of this program and exit"), NULL },	"the default"), _("kernel-path")},
4943	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4944	_("configure yaboot bootloader") },	_("make the given entry index the default entry"),
4945	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("entry-index")},
4946	_("configure zipl bootloader") },	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4947	POPT_AUTOHELP	_("use the given index when creating a new entry"),
4948	{ 0, 0, 0, 0, 0 }	_("entry-index")},
4949	};	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4950		_("configure silo bootloader")},
4951	useextlinuxmenu=0;	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4952		_("title to use for the new kernel entry"), _("entry-title")},
4953	signal(SIGSEGV, traceback);	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4954		_("updated information for the specified kernel"),
4955	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4956	poptReadDefaultConfig(optCon, 1);	{"version", 'v', 0, NULL, 'v',
4957		_("print the version of this program and exit"), NULL},
4958	while ((arg = poptGetNextOpt(optCon)) >= 0) {	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4959	switch (arg) {	_("configure yaboot bootloader")},
4960	case 'v':	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4961	printf("grubby version %s\n", VERSION);	_("configure zipl bootloader")},
4962	exit(0);	POPT_AUTOHELP {0, 0, 0, 0, 0}
4963	break;	};
4964	case 'i':
4965	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	useextlinuxmenu = 0;
4966	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
4967	} else {	int i = 0;
4968	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	for (int j = 1; j < argc; j++)
4969	return 1;	i += strlen(argv[j]) + 1;
4970	}	saved_command_line = malloc(i);
4971	break;	if (!saved_command_line) {
4972		fprintf(stderr, "grubby: %m\n");
4973		exit(1);
4974		}
4975		saved_command_line[0] = '\0';
4976		for (int j = 1; j < argc; j++) {
4977		strcat(saved_command_line, argv[j]);
4978		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4979		}
4980
4981		optCon = poptGetContext("grubby", argc, argv, options, 0);
4982		poptReadDefaultConfig(optCon, 1);
4983
4984		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4985		switch (arg) {
4986		case 'v':
4987		printf("grubby version %s\n", VERSION);
4988		exit(0);
4989		break;
4990		case 'i':
4991		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4992		extraInitrds[extraInitrdCount++] =
4993		strdup(poptGetOptArg(optCon));
4994		} else {
4995		fprintf(stderr,
4996		_
4997		("grubby: extra initrd maximum is %d\n"),
4998		extraInitrdCount);
4999		return 1;
5000		}
5001		break;
5002		}
5003	}	}
	}
5004
5005	if (arg < -1) {	if (arg < -1) {
5006	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5007	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5008	poptStrerror(arg));	poptStrerror(arg));
5009	return 1;	return 1;
5010	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5011
5012	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5013	configureYaboot + configureSilo + configureZipl +	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5014	configureExtLinux ) > 1) {	return 1;
5015	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;
	}
5016
5017	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5018	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5019	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5020	else	fprintf(stderr,
5021	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5022	cfi = &eliloConfigType;	return 1;
5023	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5024	cfi = &yabootConfigType;	fprintf(stderr,
5025	#elif __sparc__	_
5026	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5027	#elif __s390__	return 1;
5028	cfi = &ziplConfigType;	} else if (configureGrub2) {
5029	#elif __s390x__	cfi = &grub2ConfigType;
5030	cfi = &ziplConfigtype;	if (envPath)
5031	#else	cfi->envFile = envPath;
5032	cfi = &grubConfigType;	} else if (configureLilo) {
5033	#endif	cfi = &liloConfigType;
5034	}	} else if (configureGrub) {
5035		cfi = &grubConfigType;
5036		} else if (configureELilo) {
5037		cfi = &eliloConfigType;
5038		} else if (configureYaboot) {
5039		cfi = &yabootConfigType;
5040		} else if (configureSilo) {
5041		cfi = &siloConfigType;
5042		} else if (configureZipl) {
5043		cfi = &ziplConfigType;
5044		} else if (configureExtLinux) {
5045		cfi = &extlinuxConfigType;
5046		useextlinuxmenu = 1;
5047		}
5048
5049		if (!cfi) {
5050		if (grub2FindConfig(&grub2ConfigType)) {
5051		cfi = &grub2ConfigType;
5052		if (envPath)
5053		cfi->envFile = envPath;
5054		} else
5055		#ifdef __ia64__
5056		cfi = &eliloConfigType;
5057		#elif __powerpc__
5058		cfi = &yabootConfigType;
5059		#elif __sparc__
5060		cfi = &siloConfigType;
5061		#elif __s390__
5062		cfi = &ziplConfigType;
5063		#elif __s390x__
5064		cfi = &ziplConfigtype;
5065		#else
5066		cfi = &grubConfigType;
5067		#endif
5068		}
5069
5070	if (!grubConfig) {	if (!grubConfig) {
5071	if (cfi->findConfig)	if (cfi->findConfig)
5072	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5073	if (!grubConfig)	if (!grubConfig)
5074	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5075	}	}
5076
5077	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5078	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5079	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
5080	(defaultIndex >= 0))) {	|| displayDefaultTitle
5081	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
5082		fprintf(stderr,
5083		_("grubby: --bootloader-probe may not be used with "
5084	"specified option"));	"specified option"));
5085	return 1;	return 1;
5086	}	}
5087
5088	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5089	removeKernelPath)) {	removeKernelPath)) {
5090	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5091	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5092	return 1;	return 1;
5093	}	}
5094
5095	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5096	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5097	return 1;	return 1;
5098	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5099	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5100	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5101	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5102	return 1;	return 1;
5103	}	}
5104
5105	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5106	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5107	"not be used together"));	"not be used together"));
5108	return 1;	return 1;
5109	}	}
5110
5111	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5112	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5113	"may not be used together\n"));	"may not be used together\n"));
5114	return 1;	return 1;
5115	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5116	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5117	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5118	return 1;	_("grubby: cannot make removed kernel the default\n"));
5119	} else if (defaultKernel && newKernelPath &&	return 1;
5120	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5121	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5122	defaultKernel = NULL;	makeDefault = 1;
5123	}	defaultKernel = NULL;
5124	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5125	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5126		_("grubby: --set-default and --set-default-index "
5127	"may not be used together\n"));	"may not be used together\n"));
5128	return 1;	return 1;
5129	}	}
5130
5131	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5132	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5133	"is used\n"));	_("grubby: output file must be specified if stdin "
5134	return 1;	"is used\n"));
5135	}	return 1;
5136		}
5137
5138	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5139	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5140	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5141	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5142	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5143	return 1;	return 1;
5144	}	}
5145
5146	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5147
5148	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5149	if (!bootPrefix) {	if (!bootPrefix) {
5150	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5151	if (!bootPrefix) return 1;	if (!bootPrefix)
5152		return 1;
5153		} else {
5154		/* this shouldn't end with a / */
5155		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5156		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5157		}
5158	} else {	} else {
5159	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5160	}	}
	} else {
	bootPrefix = "";
	}
5161
5162	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5163	extraInitrdCount > 0) {	fprintf(stderr,
5164	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5165	return 1;	cfi->defaultConfig);
5166	}	return 1;
5167		}
5168
5169	if (bootloaderProbe) {	if (bootloaderProbe) {
5170	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;
5171	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5172
5173	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5174	if (grub2config) {	if (grub2config) {
5175	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5176	if (!gconfig)	if (!gconfig)
5177	gr2c = 1;	gr2c = 1;
5178	else	else
5179	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5180	}	}
	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");
5181
5182	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5183	}	if (!access(grubconfig, F_OK)) {
5184		gconfig = readConfig(grubconfig, &grubConfigType);
5185		if (!gconfig)
5186		grc = 1;
5187		else
5188		grc = checkForGrub(gconfig);
5189		}
5190
5191	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5192	if (!config) return 1;	lconfig =
5193		readConfig(liloConfigType.defaultConfig,
5194		&liloConfigType);
5195		if (!lconfig)
5196		lrc = 1;
5197		else
5198		lrc = checkForLilo(lconfig);
5199		}
5200
5201	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5202	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5203	struct singleEntry * entry;	&eliloConfigType);
5204	char * rootspec;	if (!econfig)
5205		erc = 1;
5206	if (config->defaultImage == -1) return 0;	else
5207	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5208	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));
5209
5210	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5211		lconfig =
5212		readConfig(extlinuxConfigType.defaultConfig,
5213		&extlinuxConfigType);
5214		if (!lconfig)
5215		extrc = 1;
5216		else
5217		extrc = checkForExtLinux(lconfig);
5218		}
5219
5220	} else if (displayDefaultTitle) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5221	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5222	struct singleEntry * entry;	&yabootConfigType);
5223		if (!yconfig)
5224	if (config->defaultImage == -1) return 0;	yrc = 1;
5225	entry = findEntryByIndex(config, config->defaultImage);	else
5226	if (!entry) return 0;	yrc = checkForYaboot(yconfig);
5227		}
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
5228
5229	} else {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5230	char * title;	|| erc == 1)
5231		return 1;
5232
5233		if (lrc == 2)
5234		printf("lilo\n");
5235		if (gr2c == 2)
5236		printf("grub2\n");
5237		if (grc == 2)
5238		printf("grub\n");
5239		if (extrc == 2)
5240		printf("extlinux\n");
5241		if (yrc == 2)
5242		printf("yaboot\n");
5243		if (erc == 2)
5244		printf("elilo\n");
5245
5246	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	return 0;
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5247	}	}
	return 0;
5248
5249	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5250	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5251	printf("%i\n", config->defaultImage);	exit(1);
5252		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5253
5254	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5255	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5256	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5257	bootPrefix, flags, defaultIndex);
5258	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5259	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5260	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5261	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5262	if (updateInitrd(config, updateKernelPath, bootPrefix,
5263	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5264	}	return 0;
5265	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5266	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5267	(const char **)extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5268	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5269		if (!entry)
5270		return 0;
5271	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5272	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5273	"Not writing out new config.\n"));
5274	return 1;	line =
5275	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5276		LT_KERNEL_16, entry->lines);
5277		if (!line)
5278		return 0;
5279
5280		rootspec = getRootSpecifier(line->elements[1].item);
5281		printf("%s%s\n", bootPrefix, line->elements[1].item +
5282		((rootspec != NULL) ? strlen(rootspec) : 0));
5283
5284		return 0;
5285
5286		} else if (displayDefaultTitle) {
5287		struct singleLine *line;
5288		struct singleEntry *entry;
5289
5290		if (config->defaultImage == NO_DEFAULT_ENTRY)
5291		return 0;
5292		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5293		cfi->defaultIsSaved)
5294		config->defaultImage = FIRST_ENTRY_INDEX;
5295		entry = findEntryByIndex(config, config->defaultImage);
5296		if (!entry)
5297		return 0;
5298
5299		if (!configureGrub2) {
5300		char *title;
5301		line = getLineByType(LT_TITLE, entry->lines);
5302		if (!line)
5303		return 0;
5304		title = extractTitle(config, line);
5305		if (!title)
5306		return 0;
5307		printf("%s\n", title);
5308		free(title);
5309		} else {
5310		char *title;
5311
5312		dbgPrintf
5313		("This is GRUB2, default title is embeded in menuentry\n");
5314		line = getLineByType(LT_MENUENTRY, entry->lines);
5315		if (!line)
5316		return 0;
5317		title = grub2ExtractTitle(line);
5318		if (title)
5319		printf("%s\n", title);
5320		}
5321		return 0;
5322
5323		} else if (displayDefaultIndex) {
5324		if (config->defaultImage == NO_DEFAULT_ENTRY)
5325		return 0;
5326		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5327		cfi->defaultIsSaved)
5328		config->defaultImage = FIRST_ENTRY_INDEX;
5329		printf("%i\n", config->defaultImage);
5330		return 0;
5331
5332		} else if (kernelInfo)
5333		return displayInfo(config, kernelInfo, bootPrefix);
5334
5335		if (copyDefault) {
5336		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5337		if (!template)
5338		return 1;
5339		}
5340
5341		markRemovedImage(config, removeKernelPath, bootPrefix);
5342		markRemovedImage(config, removeMBKernel, bootPrefix);
5343		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5344		makeDefault, bootPrefix, flags, defaultIndex,
5345		newIndex);
5346		setFallbackImage(config, newKernelPath != NULL);
5347		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5348		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5349		return 1;
5350		if (updateKernelPath && newKernelInitrd) {
5351		if (newMBKernel) {
5352		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5353		bootPrefix, newKernelInitrd,
5354		newKernelTitle))
5355		return 1;
5356		} else {
5357		if (updateInitrd(config, updateKernelPath, bootPrefix,
5358		newKernelInitrd, newKernelTitle))
5359		return 1;
5360		}
5361		}
5362		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5363		newKernelTitle, newKernelArgs, newKernelInitrd,
5364		(const char **)extraInitrds, extraInitrdCount,
5365		newMBKernel, newMBKernelArgs, newDevTreePath,
5366		newIndex))
5367		return 1;
5368
5369		if (numEntries(config) == 0) {
5370		fprintf(stderr,
5371		_("grubby: doing this would leave no kernel entries. "
5372		"Not writing out new config.\n"));
5373		return 1;
5374		}
5375
5376	if (!outputFile)	if (!outputFile)
5377	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5378
5379	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5380	}	}

---

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Legend: Removed from v.1934   changed lines   Added in v.3026