Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1854 by niro, Mon Jul 2 13:12:32 2012 UTC	revision 3135 by niro, Tue Jul 7 11:08:26 2020 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/boot/grub/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/menu.lst",	"/boot/grub/grub.conf",
200	"/etc/grub.conf",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245		{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{NULL, 0, 0},
250	};	};
251
252	const char *grub2FindConfig(struct configFileInfo *cfi) {	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static const char *configFiles[] = {	{
254	"/boot/grub/grub-efi.cfg",	static const char *configFiles[] = {
255	"/boot/grub/grub.cfg",	"/boot/grub/grub-efi.cfg",
256	NULL	"/boot/grub/grub.cfg",
257	};	"/etc/grub2-efi.cfg",
258	static int i = -1;	"/etc/grub2.cfg",
259	static const char *grub_cfg = "/boot/grub/grub.cfg";	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261	if (i == -1) {	NULL
262	for (i = 0; configFiles[i] != NULL; i++) {	};
263	dbgPrintf("Checking \"%s\": ", configFiles[i]);	static int i = -1;
264	if (!access(configFiles[i], R_OK)) {	static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366	dbgPrintf("not found\n");	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	return configFiles[i];	{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int count = 0;	{
400		int count = 0;
401
402	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	char *grub2ExtractTitle(struct singleLine * line) {	static int iskernel(enum lineType_e type)
429	char * current;	{
430	char * current_indent;	return (type == LT_KERNEL || type == LT_KERNEL_EFI
431	int current_len;	|| type == LT_KERNEL_16);
432	int current_indent_len;	}
433	int i;
434		static int isinitrd(enum lineType_e type)
435	/* bail out if line does not start with menuentry */	{
436	if (strcmp(line->elements[0].item, "menuentry"))	return (type == LT_INITRD || type == LT_INITRD_EFI
437	return NULL;	|| type == LT_INITRD_16);
438		}
	i = 1;
	current = line->elements[i].item;
	current_len = strlen(current);
	/* if second word is quoted, strip the quotes and return single word */
	if (isquote(*current) && isquote(current[current_len - 1])) {
	char *tmp;
	tmp = strdup(current);
	*(tmp + current_len - 1) = '\0';
	return ++tmp;
	}
439
440	/* if no quotes, return second word verbatim */	char *grub2ExtractTitle(struct singleLine *line)
441	if (!isquote(*current))	{
442	return current;	char *current;
443		char *current_indent;
444	/* second element start with a quote, so we have to find the element	int current_len;
445	* whose last character is also quote (assuming it's the closing one) */	int current_indent_len;
446	int resultMaxSize;	int i;
447	char * result;
448		/* bail out if line does not start with menuentry */
449	resultMaxSize = sizeOfSingleLine(line);	if (strcmp(line->elements[0].item, "menuentry"))
450	result = malloc(resultMaxSize);	return NULL;
451	snprintf(result, resultMaxSize, "%s", ++current);
452		i = 1;
	i++;
	for (; i < line->numElements; ++i) {
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (!isquote(current[current_len-1])) {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 1,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
763	if (kw->type == type)	int kwl = strlen(kw->key);
764	return kw;	int ll = strlen(label);
765		int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785	}	}
786
787	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
789	if (kt)	{
790	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
791	return "unknown";	switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812	}	}
813
814	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	if (!blkid)	struct configFileInfo *cfi)
816	blkid_get_cache(&blkid, NULL);	{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822		}
823
824	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825		{
826		struct keywordTypes *kt = getKeywordByType(type, cfi);
827		if (kt)
828		return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
841	struct configFileInfo * cfi) {	{
842	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	if (!blkid)
843	if (!strcmp(keyword, kw->key))	blkid_get_cache(&blkid, NULL);
844	return kw->type;
845	}	return blkid_get_tag_value(blkid, "UUID", device);
	return LT_UNKNOWN;
846	}	}
847
848	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct singleLine * line) {	struct configFileInfo *cfi)
850	dbgPrintf("getLineByType(%d): ", type);	{
851	for (; line; line = line->next) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	dbgPrintf("%d:%s ", line->type,	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	line->numElements ? line->elements[0].item : "(empty)");	return kw->type;
854	if (line->type & type) break;	}
855	}	return LT_UNKNOWN;
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
856	}	}
857
858	static int isBracketedTitle(struct singleLine * line) {	static struct singleLine *getLineByType(enum lineType_e type,
859	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct singleLine *line)
860	int len = strlen(line->elements[0].item);	{
861	if (*(line->elements[0].item + len - 1) == ']') {	dbgPrintf("getLineByType(%d): ", type);
862	/* FIXME: this is a hack... */	for (; line; line = line->next) {
863	if (strcmp(line->elements[0].item, "[defaultboot]")) {	dbgPrintf("%d:%s ", line->type,
864	return 1;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	}	if (line->type & type)
867	}	break;
868	return 0;	}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	static int isEntryStart(struct singleLine * line,	static int isBracketedTitle(struct singleLine *line)
874	struct configFileInfo * cfi) {	{
875	return line->type == cfi->entryStart || line->type == LT_OTHER ||	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	(cfi->titleBracketed && isBracketedTitle(line));	int len = strlen(line->elements[0].item);
877		if (*(line->elements[0].item + len - 1) == ']') {
878		/* FIXME: this is a hack... */
879		if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885	}	}
886
887	/* extract the title from within brackets (for zipl) */	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	static char * extractTitle(struct singleLine * line) {	{
889	/* bracketed title... let's extract it (leaks a byte) */	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	char * title;	(cfi->titleBracketed && isBracketedTitle(line));
891	title = strdup(line->elements[0].item);	}
	title++;
	*(title + strlen(title) - 1) = '\0';
	return title;
	}
	static int readFile(int fd, char ** bufPtr) {
	int alloced = 0, size = 0, i = 0;
	char * buf = NULL;
	do {
	size += i;
	if ((size + 1024) > alloced) {
	alloced += 4096;
	buf = realloc(buf, alloced + 1);
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
892
893	buf = realloc(buf, size + 2);	/* extract the title from within brackets (for zipl) */
894	if (size == 0)	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	buf[size++] = '\n';	{
896	else	/* bracketed title... let's extract it */
897	if (buf[size - 1] != '\n')	char *title = NULL;
898	buf[size++] = '\n';	if (line->type == LT_TITLE) {
899	buf[size] = '\0';	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900		if (cfg->cfi->titleBracketed) {
901		tmp++;
902		title = strdup(tmp);
903		*(title + strlen(title) - 1) = '\0';
904		} else {
905		title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912		}
913
914	*bufPtr = buf;	static int readFile(int fd, char **bufPtr)
915		{
916		int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919	return 0;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineInit(struct singleLine * line) {	if (i < 0) {
928	line->indent = NULL;	fprintf(stderr, _("error reading input: %s\n"),
929	line->elements = NULL;	strerror(errno));
930	line->numElements = 0;	free(buf);
931	line->next = NULL;	return 1;
932	}	}
	struct singleLine * lineDup(struct singleLine * line) {
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
933
934	return newLine;	buf = realloc(buf, size + 2);
935	}	if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	static void lineFree(struct singleLine * line) {	*bufPtr = buf;
	if (line->indent) free(line->indent);
942
943	for (int i = 0; i < line->numElements; i++) {	return 0;
944	free(line->elements[i].item);	}
	free(line->elements[i].indent);
	}
945
946	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
947	lineInit(line);	{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	/* Need to handle this, because we strip the quotes from	newLine->next = NULL;
961	* menuentry when read it. */	newLine->type = line->type;
962	if (line->type == LT_MENUENTRY && i == 1) {	newLine->numElements = line->numElements;
963	if(!isquote(*line->elements[i].item))	newLine->elements = malloc(sizeof(*newLine->elements) *
964	fprintf(out, "\'%s\'", line->elements[i].item);	newLine->numElements);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
965
966	continue;	for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
972	if (fputc('"', out) == EOF) return -1;	}
	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;
	if (i < line->numElements - 1)
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (int i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (int i = 1; i < line->numElements; i++) {
	char *p;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (int j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	line->elements[i + 1].indent = line->elements[i].indent;	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191		}
1192		line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int len;
	char * buf;
	if (!strcmp(inName, "-")) {
	in = 0;
	} else {
	if ((in = open(inName, O_RDONLY)) < 0) {
	fprintf(stderr, _("error opening %s for read: %s\n"),
	inName, strerror(errno));
	return NULL;
	}
	}
	rc = readFile(in, &incoming);
	close(in);
	if (rc) return NULL;
	head = incoming;
	cfg = malloc(sizeof(*cfg));
	cfg->primaryIndent = strdup("");
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1262
1263	if (getNextLine(&head, line, cfi)) {	static struct grubConfig *readConfig(const char *inName,
1264	free(line);	struct configFileInfo *cfi)
1265	/* XXX memory leak of everything in cfg */	{
1266	return NULL;	int in;
1267	}	char *incoming = NULL, *head;
1268		int rc;
1269	if (!sawEntry && line->numElements) {	int sawEntry = 0;
1270	free(cfg->primaryIndent);	int movedLine = 0;
1271	cfg->primaryIndent = strdup(line->indent);	struct grubConfig *cfg;
1272	} else if (line->numElements) {	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	free(cfg->secondaryIndent);	char *end;
1274	cfg->secondaryIndent = strdup(line->indent);	struct singleEntry *entry = NULL;
1275	}	int len;
1276		char *buf;
1277	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1278	sawEntry = 1;	if (inName == NULL) {
1279	if (!entry) {	printf("Could not find bootloader configuration\n");
1280	cfg->entries = malloc(sizeof(*entry));	exit(1);
1281	entry = cfg->entries;	} else if (!strcmp(inName, "-")) {
1282	} else {	in = 0;
1283	entry->next = malloc(sizeof(*entry));	} else {
1284	entry = entry->next;	if ((in = open(inName, O_RDONLY)) < 0) {
1285	}	fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289		}
1290
1291	entry->skip = 0;	rc = readFile(in, &incoming);
1292	entry->multiboot = 0;	close(in);
1293	entry->lines = NULL;	if (rc)
1294	entry->next = NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1298	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->primaryIndent = strdup("");
1299	dbgPrintf("%s", line->indent);	cfg->secondaryIndent = strdup("\t");
1300	for (int i = 0; i < line->numElements; i++)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	cfg->cfi = cfi;
1302	dbgPrintf("\n");	cfg->theLines = NULL;
1303	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->entries = NULL;
1304	if (kwType && line->numElements == 3 &&	cfg->fallbackImage = 0;
1305	!strcmp(line->elements[1].item, kwType->key)) {	cfg->isModified = 0;
1306	dbgPrintf("Line sets default config\n");
1307	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	/* copy everything we have */
1308	defaultLine = line;	while (*head) {
1309	}	line = malloc(sizeof(*line));
1310	} else if (line->type == LT_DEFAULT && line->numElements == 2) {	lineInit(line);
1311	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1312	defaultLine = line;	if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314	} else if (line->type == LT_KERNEL) {	/* XXX memory leak of everything in cfg */
1315	/* if by some freak chance this is multiboot and the "module"	return NULL;
1316	* lines came earlier in the template, make sure to use LT_HYPER	}
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	for (struct singleLine *l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1317
1318	for (int i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1320	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1328	free(line->elements[i].indent);	if (!entry) {
1329	}	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1333	line->elements[line->numElements - 1].indent;	entry = entry->next;
1334	line->elements[1].item = buf;	}
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
	/* allocate mem for extra flags. */
	extras = malloc(len + 1);
	*extras = '\0';
	/* get title. */
	for (int i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (isquote(*line->elements[i].item))
	title = line->elements[i].item + 1;
	else
	title = line->elements[i].item;
1335
1336	len = strlen(title);	entry->skip = 0;
1337	if (isquote(title[len-1])) {	entry->multiboot = 0;
1338	strncat(buf, title,len-1);	entry->lines = NULL;
1339	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1340	}	}
	}
	/* get extras */
	int count = 0;
	for (int i = 0; i < line->numElements; i++) {
	if (count >= 2) {
	strcat(extras, line->elements[i].item);
	strcat(extras, line->elements[i].indent);
	}
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	/* count ' or ", there should be two in menuentry line. */
	if (isquote(*line->elements[i].item))
	count++;
	len = strlen(line->elements[i].item);
	if (isquote(line->elements[i].item[len -1]))
	count++;
	/* ok, we get the final ' or ", others are extras. */
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(line->elements[last].item[len]))
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1341
1342	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1343	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1344	entry->lines = line;	line->numElements);
1345	else	dbgPrintf("%s", line->indent);
1346	last->next = line;	for (int i = 0; i < line->numElements; i++)
1347	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1350	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1351	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1352	sawEntry = 0;	if (kwType && line->numElements == 3
1353	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (!cfg->theLines)	&& !is_special_grub2_variable(
1355	cfg->theLines = line;	line->elements[2].item)) {
1356	else	dbgPrintf("Line sets default config\n");
1357	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368	last = line;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	free(incoming);	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	if (defaultLine) {	cfg->fallbackImage =
1391	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1392	cfi->defaultSupportSaved &&	if (*end)
1393	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1394	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1395	} else if (cfi->defaultIsVariable) {	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	char *value = defaultLine->elements[2].item;	|| (line->type == LT_TITLE
1397	while (*value && (*value == '"' || *value == '\'' ||	&& line->numElements > 1)) {
1398	*value == ' ' || *value == '\t'))	/* make the title/default a single argument (undoing
1399	value++;	* our parsing) */
1400	cfg->defaultImage = strtol(value, &end, 10);	len = 0;
1401	while (*end && (*end == '"' || *end == '\'' ||	for (int i = 1; i < line->numElements; i++) {
1402	*end == ' ' || *end == '\t'))	len += strlen(line->elements[i].item);
1403	end++;	len += strlen(line->elements[i].indent);
1404	if (*end) cfg->defaultImage = -1;	}
1405	} else if (cfi->defaultSupportSaved &&	buf = malloc(len + 1);
1406	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	*buf = '\0';
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	int i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1407
1408	if (entry){	for (int i = 1; i < line->numElements; i++) {
1409	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1410	}else{	free(line->elements[i].item);
1411	cfg->defaultImage = -1;
1412	}	if ((i + 1) != line->numElements) {
1413	}	strcat(buf, line->elements[i].indent);
1414	} else {	free(line->elements[i].indent);
1415	cfg->defaultImage = 0;	}
1416	}	}
1417
1418	return cfg;	line->elements[1].indent =
1419	}	line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1438	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1439	struct singleEntry * entry;	*extras = '\0';
1440	struct singleLine * line;
1441	int i;	/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1446	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1447	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)	&& quote_char == '\0') {
1448	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1449	else if (cfg->defaultImage > -1) {	quote_char = *line->elements[i].item;
1450	if (cfg->cfi->defaultIsIndex) {	title = line->elements[i].item + 1;
1451	if (cfg->cfi->defaultIsVariable) {	} else {
1452	fprintf(out, "%sset default=\"%d\"\n", indent,	title = line->elements[i].item;
1453	cfg->defaultImage);	}
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1454
1455	entry = cfg->entries;	len = strlen(title);
1456	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	i = 0;	/* get extras */
1466	while (entry && i < image) {	int count = 0;
1467	entry = entry->next;	quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1476	i++;	(line->elements[i].item, "menuentry"))
1477	}	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	if (!entry) return;	len = strlen(line->elements[i].item);
1488
1489	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1494	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1495	line->elements[1].item);	line->elements[1].indent =
1496	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1497	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1498	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1499	extractTitle(line));	line->elements[line->numElements - 2].indent;
1500	}	line->elements[2].item = extras;
1501	}	line->numElements = 3;
1502	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503	}	/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1511	const char * prefix) {	memmove(line->elements[1].item,
1512	FILE * out;	line->elements[1].item + 1,
1513	struct singleLine * line;	strlen(line->elements[1].item +
1514	struct singleEntry * entry;	1) + 1);
1515	char * tmpOutName;
1516	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1517	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1518	int i;	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520	if (!strcmp(outName, "-")) {	}
1521	out = stdout;	}
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(outName));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
1581
1582	return 0;	free(incoming);
	}
1583
1584	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int i = 0;	if (defaultLine) {
1586	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1589	while (entry) {	"\"${saved_entry}\"", 16)) {
1590	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1591	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592	entry = entry->next;	if (cfg->cfi->getEnv) {
1593	}	char *defTitle =
1594	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701		{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800		} else {
1801		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803		int len = 256;
1804		int rc;
1805
1806		/* most likely the symlink is relative, so change our
1807		directory to the dir of the symlink */
1808		char *dir = strdupa(outName);
1809		rc = chdir(dirname(dir));
1810		do {
1811		buf = alloca(len + 1);
1812		rc = readlink(basename(outName), buf, len);
1813		if (rc == len)
1814		len += 256;
1815		} while (rc == len);
1816
1817		if (rc < 0) {
1818		fprintf(stderr,
1819		_
1820		("grubby: error readlink link %s: %s\n"),
1821		outName, strerror(errno));
1822		return 1;
1823		}
1824
1825		outName = buf;
1826		outName[rc] = '\0';
1827		}
1828
1829		tmpOutName = alloca(strlen(outName) + 2);
1830		sprintf(tmpOutName, "%s-", outName);
1831		out = fopen(tmpOutName, "w");
1832		if (!out) {
1833		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834		tmpOutName, strerror(errno));
1835		return 1;
1836		}
1837
1838		if (!stat(outName, &sb)) {
1839		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840		fprintf(stderr,
1841		_
1842		("grubby: error setting perms on %s: %s\n"),
1843		tmpOutName, strerror(errno));
1844		fclose(out);
1845		unlink(tmpOutName);
1846		return 1;
1847		}
1848		}
1849		}
1850
1851		line = cfg->theLines;
1852		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1853		while (line) {
1854		if (line->type == LT_SET_VARIABLE && defaultKw &&
1855		line->numElements == 3 &&
1856		!strcmp(line->elements[1].item, defaultKw->key) &&
1857		!is_special_grub2_variable(line->elements[2].item)) {
1858		writeDefault(out, line->indent,
1859		line->elements[0].indent, cfg);
1860		needs &= ~MAIN_DEFAULT;
1861		} else if (line->type == LT_DEFAULT) {
1862		writeDefault(out, line->indent,
1863		line->elements[0].indent, cfg);
1864		needs &= ~MAIN_DEFAULT;
1865		} else if (line->type == LT_FALLBACK) {
1866		if (cfg->fallbackImage > -1)
1867		fprintf(out, "%s%s%s%d\n", line->indent,
1868		line->elements[0].item,
1869		line->elements[0].indent,
1870		cfg->fallbackImage);
1871		} else {
1872		if (lineWrite(out, line, cfg->cfi) == -1) {
1873		fprintf(stderr,
1874		_("grubby: error writing %s: %s\n"),
1875		tmpOutName, strerror(errno));
1876		fclose(out);
1877		unlink(tmpOutName);
1878		return 1;
1879		}
1880		}
1881
1882		line = line->next;
1883		}
1884
1885		if (needs & MAIN_DEFAULT) {
1886		writeDefault(out, cfg->primaryIndent, "=", cfg);
1887		needs &= ~MAIN_DEFAULT;
1888		}
1889
1890		i = 0;
1891		while ((entry = findEntryByIndex(cfg, i++))) {
1892		if (entry->skip)
1893		continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907		}
1908
1909		if (tmpOutName) {
1910		/* write userspace buffers */
1911		if (fflush(out))
1912		rc = 1;
1913
1914		/* purge the write-back cache with fsync() */
1915		if (fsync(fileno(out)))
1916		rc = 1;
1917
1918		if (fclose(out))
1919		rc = 1;
1920
1921		if (rc == 0 && rename(tmpOutName, outName)) {
1922		unlink(tmpOutName);
1923		rc = 1;
1924		}
1925
1926		/* fsync() the destination directory after rename */
1927		if (rc == 0) {
1928		int dirfd;
1929
1930		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1931		if (dirfd < 0)
1932		rc = 1;
1933		else if (fsync(dirfd))
1934		rc = 1;
1935
1936		if (dirfd >= 0)
1937		close(dirfd);
1938		}
1939
1940		if (rc == 1)
1941		fprintf(stderr,
1942		_("grubby: error flushing data: %m\n"));
1943		}
1944
1945		return rc;
1946		}
1947
1948		static int numEntries(struct grubConfig *cfg)
1949		{
1950		int i = 0;
1951		struct singleEntry *entry;
1952
1953		entry = cfg->entries;
1954		while (entry) {
1955		if (!entry->skip)
1956		i++;
1957		entry = entry->next;
1958		}
1959		return i;
1960	}	}
1961
1962	static char *findDiskForRoot()	static char *findDiskForRoot()
1963	{	{
1964	int fd;	int fd;
1965	char buf[65536];	char buf[65536];
1966	char *devname;	char *devname;
1967	char *chptr;	char *chptr;
1968	int rc;	int rc;
1969
1970		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971		fprintf(stderr, "grubby: failed to open %s: %s\n",
1972		_PATH_MOUNTED, strerror(errno));
1973		return NULL;
1974		}
1975
1976		rc = read(fd, buf, sizeof(buf) - 1);
1977		if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979		_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981		return NULL;
1982		}
1983		close(fd);
1984		buf[rc] = '\0';
1985		chptr = buf;
1986
1987	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;
	}
1988
1989	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1990	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++;
	}
1991
1992	/* Return the last / entry found */	/*
1993	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1994	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1995	*chptr = '\0';	* on to the next line.
1996	return strdup(foundanswer);	*/
1997	}	if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004		/* Seek to the next space */
2005		chptr = strchr(chptr, ' ');
2006		if (!chptr) {
2007		fprintf(stderr, "grubby: error parsing %s: %s\n",
2008		_PATH_MOUNTED, strerror(errno));
2009		return NULL;
2010		}
2011
2012	return NULL;	/*
2013		* The second column of a mtab entry is the mount point, we
2014		* are looking for '/' obviously.
2015		*/
2016		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2017		/* remember the last / entry in mtab */
2018		foundanswer = devname;
2019		}
2020
2021		/* Next line */
2022		chptr = strchr(chptr, '\n');
2023		if (chptr)
2024		chptr++;
2025		}
2026
2027		/* Return the last / entry found */
2028		if (foundanswer) {
2029		chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032		}
2033
2034		return NULL;
2035	}	}
2036
2037	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
2038	int i;	{
2039	struct singleLine * line;	int i;
2040		struct singleLine *line;
2041
2042	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2043	fprintf(stderr, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2044	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2045	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2046	* menuentry when read it. */	* menuentry when read it. */
2047	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2048	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2049	fprintf(stderr, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2050	else	line->elements[i].item);
2051	fprintf(stderr, "%s", line->elements[i].item);	else
2052	fprintf(stderr, "%s", line->elements[i].indent);	log_message(f, "%s",
2053		line->elements[i].item);
2054	continue;	log_message(f, "%s", line->elements[i].indent);
2055	}
2056		continue;
2057	fprintf(stderr, "%s%s",	}
2058	line->elements[i].item, line->elements[i].indent);
2059		log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064	}	}
	fprintf(stderr, "\n");
	}
2065	}	}
2066
2067	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069	{	{
2070	va_list argp;	static int once;
2071		va_list argp, argq;
2072
2073	if (!debug)	va_start(argp, fmt);
	return;
2074
2075	va_start(argp, fmt);	va_copy(argq, argp);
2076	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2077	vfprintf(stderr, fmt, argp);	log_time(NULL);
2078	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2079	va_end(argp);	}
2080		log_message(NULL, "DBG: Image entry %s: ",
2081		okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
2083
2084		printEntry(entry, NULL);
2085		va_end(argq);
2086
2087		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093		if (okay) {
2094		va_end(argp);
2095		return;
2096		}
2097
2098		if (!once)
2099		log_message(stderr, "DBG: command line: %s\n",
2100		saved_command_line);
2101		once = 1;
2102		fprintf(stderr, "DBG: Image entry failed: ");
2103		vfprintf(stderr, fmt, argp);
2104		printEntry(entry, stderr);
2105		va_end(argp);
2106	}	}
2107
2108	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1550  static int endswith(const char *s, char	Line 2118  static int endswith(const char *s, char
2118	return s[slen] == c;	return s[slen] == c;
2119	}	}
2120
2121	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	int skipRemoved, int flags) {	int skipRemoved, int flags)
2123	struct singleLine * line;	{
2124	char * fullName;	struct singleLine *line;
2125	int i;	char *fullName;
2126	char * dev;	int i;
2127	char * rootspec;	char *dev;
2128	char * rootdev;	char *rootspec;
2129		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2130
2131	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2132	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2133	notSuitablePrintf(entry, "no line found\n");	return 0;
2134	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2135
2136	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2137		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138		entry->lines);
2139		if (!line) {
2140		notSuitablePrintf(entry, 0, "no line found\n");
2141		return 0;
2142		}
2143		if (line->numElements < 2) {
2144		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145		line->numElements);
2146		return 0;
2147		}
2148
2149	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2150	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2151	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2152	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);
2153
2154	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2155	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2156	} else {	rootspec = getRootSpecifier(line->elements[1].item);
2157	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2158	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	int hasslash = endswith(bootPrefix, '/') ||
2159	*/	beginswith(line->elements[1].item + rootspec_offset, '/');
2160	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2161		line->elements[1].item + rootspec_offset);
2162	/* failed to find one */	if (access(fullName, R_OK)) {
2163	if (!line) {	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	notSuitablePrintf(entry, "no line found\n");
2164	return 0;	return 0;
2165	}	}
2166		for (i = 2; i < line->numElements; i++)
2167		if (!strncasecmp(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements) {
2170		dev = line->elements[i].item + 5;
2171		} else {
2172		/* look for a lilo style LT_ROOT line */
2173		line = getLineByType(LT_ROOT, entry->lines);
2174
2175		if (line && line->numElements >= 2) {
2176		dev = line->elements[1].item;
2177		} else {
2178		/* didn't succeed in finding a LT_ROOT, let's try
2179		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2180		* for the args, so check that too.
2181		*/
2182		line =
2183		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2184		entry->lines);
2185
2186		/* failed to find one */
2187		if (!line) {
2188		notSuitablePrintf(entry, 0, "no line found\n");
2189		return 0;
2190		}
2191
2192	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2193	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2194	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2195	dev = line->elements[i].item + 5;	break;
2196	else {	if (i < line->numElements)
2197	notSuitablePrintf(entry, "no root= entry found\n");	dev = line->elements[i].item + 5;
2198	/* it failed too...  can't find root= */	else {
2199	return 0;	notSuitablePrintf(entry, 0,
2200	}	"no root= entry found\n");
2201		/* it failed too...  can't find root= */
2202		return 0;
2203		}
2204		}
2205	}	}
	}
2206
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2207	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2208		if (!getpathbyspec(dev)) {
2209		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2210		dev);
2211		return 0;
2212		} else
2213		dev = getpathbyspec(dev);
2214
2215	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2216	if (!rootdev) {	if (!rootdev) {
2217	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2218	return 0;	return 0;
2219	}	}
2220
2221	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2222	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2223	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2224	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2225	return 0;	free(rootdev);
2226	}	return 0;
2227		}
2228
2229	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2230	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2231	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2232	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2233	return 0;	free(rootdev);
2234	}	return 0;
2235		}
2236
2237	free(rootdev);	free(rootdev);
2238		notSuitablePrintf(entry, 1, "\n");
2239
2240	return 1;	return 1;
2241	}	}
2242
2243	/* 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
2244	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2245	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2246	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2247	int * index) {	int *index)
2248	struct singleEntry * entry = NULL;	{
2249	struct singleLine * line;	struct singleEntry *entry = NULL;
2250	int i;	struct singleLine *line;
2251	char * chptr;	int i;
2252	char * rootspec = NULL;	char *chptr;
2253	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2254		enum lineType_e checkType = LT_KERNEL;
2255	if (isdigit(*kernel)) {
2256	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2257		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2258
2259		i = 0;
2260		indexVars[i] = strtol(kernel, &chptr, 10);
2261		while (*chptr == ',') {
2262		i++;
2263		kernel = chptr + 1;
2264		indexVars[i] = strtol(kernel, &chptr, 10);
2265		}
2266
2267	i = 0;	if (*chptr) {
2268	indexVars[i] = strtol(kernel, &chptr, 10);	/* can't parse it, bail */
2269	while (*chptr == ',') {	return NULL;
2270	i++;	}
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2271
2272	if (*chptr) {	indexVars[i + 1] = -1;
	/* can't parse it, bail */
	return NULL;
	}
2273
2274	indexVars[i + 1] = -1;	i = 0;
2275		if (index) {
2276	i = 0;	while (i < *index) {
2277	if (index) {	i++;
2278	while (i < *index) i++;	if (indexVars[i] == -1)
2279	if (indexVars[i] == -1) return NULL;	return NULL;
2280	}	}
2281		}
2282
2283	entry = findEntryByIndex(config, indexVars[i]);	entry = findEntryByIndex(config, indexVars[i]);
2284	if (!entry) return NULL;	if (!entry)
2285		return NULL;
2286
2287		line =
2288		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2289		LT_KERNEL_16, entry->lines);
2290		if (!line)
2291		return NULL;
2292
2293		if (index)
2294		*index = indexVars[i];
2295		return entry;
2296		}
2297
2298		if (!strcmp(kernel, "DEFAULT")) {
2299		if (index && *index > config->defaultImage) {
2300		entry = NULL;
2301		} else {
2302		entry = findEntryByIndex(config, config->defaultImage);
2303		if (entry && entry->skip)
2304		entry = NULL;
2305		else if (index)
2306		*index = config->defaultImage;
2307		}
2308		} else if (!strcmp(kernel, "ALL")) {
2309		if (index)
2310		i = *index;
2311		else
2312		i = 0;
2313
2314	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2315	if (!line) return NULL;	if (!entry->skip)
2316		break;
2317		i++;
2318		}
2319
2320	if (index) *index = indexVars[i];	if (entry && index)
2321	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2322	} else {	} else {
2323	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2324	if (entry && entry->skip)	i = *index;
2325	entry = NULL;	else
2326	else if (index)	i = 0;
2327	*index = config->defaultImage;
2328	}	if (!strncmp(kernel, "TITLE=", 6)) {
2329	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2330	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2331	i = *index;	kernel += 6;
2332	else	}
2333	i = 0;
2334		for (entry = findEntryByIndex(config, i); entry;
2335		entry = entry->next, i++) {
2336		if (entry->skip)
2337		continue;
2338
2339		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2340		checkType, kernel, entry);
2341
2342		/* check all the lines matching checkType */
2343		for (line = entry->lines; line; line = line->next) {
2344		enum lineType_e ct = checkType;
2345		if (entry->multiboot && checkType == LT_KERNEL)
2346		ct = LT_KERNEL | LT_KERNEL_EFI |
2347		LT_MBMODULE | LT_HYPER |
2348		LT_KERNEL_16;
2349		else if (checkType & LT_KERNEL)
2350		ct = checkType | LT_KERNEL_EFI |
2351		LT_KERNEL_16;
2352		line = getLineByType(ct, line);
2353		if (!line)
2354		break; /* not found in this entry */
2355
2356		if (line && line->type != LT_MENUENTRY &&
2357		line->numElements >= 2) {
2358		rootspec =
2359		getRootSpecifier(line->elements[1].
2360		item);
2361		if (!strcmp
2362		(line->elements[1].item +
2363		((rootspec !=
2364		NULL) ? strlen(rootspec) : 0),
2365		kernel + strlen(prefix)))
2366		break;
2367		}
2368		if (line->type == LT_MENUENTRY &&
2369		!strcmp(line->elements[1].item, kernel))
2370		break;
2371		}
2372
2373		/* make sure this entry has a kernel identifier; this skips
2374		* non-Linux boot entries (could find netbsd etc, though, which is
2375		* unfortunate)
2376		*/
2377		if (line
2378		&& getLineByType(LT_KERNEL | LT_HYPER |
2379		LT_KERNEL_EFI | LT_KERNEL_16,
2380		entry->lines))
2381		break; /* found 'im! */
2382		}
2383
2384	while ((entry = findEntryByIndex(config, i))) {	if (index)
2385	if (!entry->skip) break;	*index = i;
	i++;
2386	}	}
2387
2388	if (entry && index)	return entry;
2389	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2390
2391	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2392	prefix = "";	int *index)
2393	checkType = LT_TITLE|LT_MENUENTRY;	{
2394	kernel += 6;	struct singleEntry *entry;
2395	}	struct singleLine *line;
2396		int i;
2397	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2398	if (entry->skip) continue;
2399		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2400	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2401		continue;
2402	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
2403	for (line = entry->lines; line; line = line->next) {	if (!line)
2404	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	line = getLineByType(LT_MENUENTRY, entry->lines);
2405	LT_KERNEL|LT_MBMODULE|LT_HYPER :	if (!line)
2406	checkType, line);	continue;
2407	if (!line) break;  /* not found in this entry */	newtitle = grub2ExtractTitle(line);
2408		if (!newtitle)
2409	if (line && line->type != LT_MENUENTRY &&	continue;
2410	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)))
2411	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! */
2412	}	}
2413
2414	if (index) *index = i;	if (!entry)
2415	}	return NULL;
2416
2417	return entry;	if (index)
2418		*index = i;
2419		return entry;
2420	}	}
2421
2422	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2423	struct singleEntry * entry;	{
2424		struct singleEntry *entry;
2425
2426	entry = cfg->entries;	entry = cfg->entries;
2427	while (index && entry) {	while (index && entry) {
2428	entry = entry->next;	entry = entry->next;
2429	index--;	index--;
2430	}	}
2431
2432	return entry;	return entry;
2433	}	}
2434
2435	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1792  struct singleEntry * findEntryByIndex(st	Line 2437  struct singleEntry * findEntryByIndex(st
2437	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2438	* 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,
2439	* bail. */	* bail. */
2440	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2441	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2442	struct singleEntry * entry, * entry2;	{
2443	int index;	struct singleEntry *entry, *entry2;
2444		int index;
2445	if (cfg->defaultImage > -1) {
2446	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2447	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2448	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2449	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2450		if (defTitle) {
2451		int index = 0;
2452		if (isnumber(defTitle)) {
2453		index = atoi(defTitle);
2454		entry = findEntryByIndex(cfg, index);
2455		} else {
2456		entry =
2457		findEntryByTitle(cfg, defTitle,
2458		&index);
2459		}
2460		if (entry
2461		&& suitableImage(entry, prefix, skipRemoved,
2462		flags)) {
2463		cfg->defaultImage = index;
2464		if (indexPtr)
2465		*indexPtr = index;
2466		return entry;
2467		}
2468		}
2469		}
2470		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2471		entry = findEntryByIndex(cfg, cfg->defaultImage);
2472		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2473		if (indexPtr)
2474		*indexPtr = cfg->defaultImage;
2475		return entry;
2476		}
2477	}	}
	}
2478
2479	index = 0;	index = 0;
2480	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2481	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2482	int j;	int j, unmodifiedIndex;
2483	for (j = 0; j < index; j++) {
2484	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2485	if (entry2->skip) index--;
2486	}	for (j = 0; j < unmodifiedIndex; j++) {
2487	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2488		if (entry2->skip)
2489		index--;
2490		}
2491		if (indexPtr)
2492		*indexPtr = index;
2493
2494	return entry;	return entry;
2495	}	}
2496
2497	index++;	index++;
2498	}	}
2499
2500	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2501		_("grubby fatal error: unable to find a suitable template\n"));
2502
2503	return NULL;	return NULL;
2504	}	}
2505
2506	char * findBootPrefix(void) {	char *findBootPrefix(void)
2507	struct stat sb, sb2;	{
2508		struct stat sb, sb2;
2509
2510	stat("/", &sb);	stat("/", &sb);
2511	#ifdef __ia64__	#ifdef __ia64__
2512	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2513	#else	#else
2514	stat("/boot", &sb2);	stat("/boot", &sb2);
2515	#endif	#endif
2516
2517	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2518	return strdup("");	return strdup("");
2519
2520	#ifdef __ia64__	#ifdef __ia64__
2521	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2522	#else	#else
2523	return strdup("/boot");	return strdup("/boot");
2524	#endif	#endif
2525	}	}
2526
2527	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2528	const char * prefix) {	const char *prefix)
2529	struct singleEntry * entry;	{
2530		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;
	}
2531
2532	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2533	entry->skip = 1;	return;
	}
2534
2535	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2536	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2537	const char * prefix, int flags) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2538	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2539	int i, j;	entry->skip = 1;
2540		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2541	}	}
	}
2542
2543	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2544	changes */	entry->skip = 1;
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2545	}	}
2546
2547	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2548	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2549	int j;	const char *prefix, int flags,
2550		int newDefaultBootEntryIndex, int newBootEntryIndex)
2551	if (config->fallbackImage == -1) return;	{
2552		struct singleEntry *bootEntry, *newDefault;
2553	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
	if (hasNew)
	config->fallbackImage++;
	/* 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--;
	}
	}
2554
2555	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* initialize */
2556	struct singleLine * line;	currentLookupIndex = FIRST_ENTRY_INDEX;
	char * root = NULL;
	int i;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2557
2558	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* handle the two cases where the user explictly picks the default
2559	printf("kernel=%s\n", line->elements[1].item);	* boot entry index as it would exist post-modification */
	else
	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	if (line->numElements >= 3) {
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2560
2561	i++;	/* Case 1: user chose to make the latest boot entry the default */
2562		if (newBootEntryIsDefault) {
2563		config->defaultImage = newBootEntryIndex;
2564		return;
2565	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2566
2567	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2568	i = 1;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2569	while (i < line->numElements) {	indexToVerify = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2570
2571	printf("%s%s", s, line->elements[i].indent);	/* user chose to make latest boot entry the default */
2572		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2573		config->defaultImage = newBootEntryIndex;
2574		return;
2575	}	}
2576
2577	i++;	/* the user picks the default index based on the
2578	}	* order of the bootloader configuration after
2579		* modification; ensure we are checking for the
2580		* existence of the correct entry */
2581		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2582		if (!config->isModified)
2583		indexToVerify--;
2584		}
2585
2586	s = line->elements[i - 1].indent;	/* verify the user selected index will exist */
2587	printf("\"\n");	if (findEntryByIndex(config, indexToVerify)) {
2588	}	config->defaultImage = newDefaultBootEntryIndex;
2589	}	} else {
2590		config->defaultImage = NO_DEFAULT_ENTRY;
2591		}
2592
2593	if (!root) {	return;
2594	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2595
2596	if (root) {	/* handle cases where the index value may shift */
	char * s = alloca(strlen(root) + 1);
	strcpy(s, root);
	if (s[strlen(s) - 1] == '"')
	s[strlen(s) - 1] = '\0';
	/* make sure the root doesn't have a trailing " */
	printf("root=%s\n", s);
	}
2597
2598	line = getLineByType(LT_INITRD, entry->lines);	/* check validity of existing default or first-entry-found
2599		selection */
2600		if (defaultKernelPath) {
2601		/* we must initialize this */
2602		firstKernelEntryIndex = 0;
2603		/* user requested first-entry-found */
2604		if (!findEntryByPath(config, defaultKernelPath,
2605		prefix, &firstKernelEntryIndex)) {
2606		/* don't change default if can't find match */
2607		config->defaultImage = NO_DEFAULT_ENTRY;
2608		return;
2609		}
2610
2611	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2612
2613	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2614	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2615
2616	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2617	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2618	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2619	} else {	config->defaultImage++;
2620	char * title;	}
2621	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2622	title = grub2ExtractTitle(line);	/* check to see if the default is stored in the environment */
2623	if (title)	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2624	printf("title=%s\n", title);	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2625	}	{
2626	}	if (config->cfi->defaultIsSaved) {
2627		if (config->cfi->getEnv) {
2628		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2629
2630		if (defaultTitle) {
2631		if (isnumber(defaultTitle)) {
2632		currentLookupIndex = atoi(defaultTitle);
2633		} else {
2634		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2635		}
2636		/* set the default Image to an actual index */
2637		config->defaultImage = currentLookupIndex;
2638		}
2639		}
2640		}
2641		}
2642		} else {
2643		/* use pre-existing default entry from the file*/
2644		currentLookupIndex = config->defaultImage;
2645		}
2646
2647	int isSuseSystem(void) {	if (isAddingBootEntry
2648	const char * path;	&& (newBootEntryIndex <= config->defaultImage)) {
2649	const static char default_path[] = "/etc/SuSE-release";	config->defaultImage++;
2650
2651	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	if (config->isModified) {
2652	path = default_path;	currentLookupIndex++;
2653		}
2654		}
2655		}
2656
2657	if (!access(path, R_OK))	/* sanity check - is this entry index valid? */
2658	return 1;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	return 0;
	}
2659
2660	int isSuseGrubConf(const char * path) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661	FILE * grubConf;	/* entry is to be skipped or is invalid */
2662	char * line = NULL;	if (isAddingBootEntry) {
2663	size_t len = 0, res = 0;	config->defaultImage = newBootEntryIndex;
2664		return;
2665	grubConf = fopen(path, "r");	}
2666	if (!grubConf) {	newDefault =
2667	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	findTemplate(config, prefix, &config->defaultImage, 1,
2668	return 0;	flags);
2669	}	if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671		}
2672
2673	while ((res = getline(&line, &len, grubConf)) != -1) {	return;
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
2674	}	}
	}
2675
2676	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	currentLookupIndex--;
	path);
2677
2678	fclose(grubConf);	/* decrement index by the total number of entries deleted */
	free(line);
	return 0;
	}
2679
2680	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (indexToVerify = currentLookupIndex;
2681	FILE * grubConf;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	char * line = NULL;
	size_t res = 0, len = 0;
	if (!path) return 1;
	if (!lbaPtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
	}
2682
2683	if (!strncmp(line, "setup", 5)) {	bootEntry = findEntryByIndex(config, indexToVerify);
	if (strstr(line, "--force-lba")) {
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2684
2685	free(line);	if (bootEntry && bootEntry->skip) {
2686	fclose(grubConf);	config->defaultImage--;
2687	return 0;	}
2688		}
2689	}	}
2690
2691	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2692	FILE * grubConf;	{
2693	char * line = NULL;	struct singleEntry *entry, *entry2;
2694	size_t res = 0, len = 0;	int j;
2695	char * lastParamPtr = NULL;
2696	char * secLastParamPtr = NULL;	if (config->fallbackImage == -1)
2697	char installDeviceNumber = '\0';	return;
2698	char * bounds = NULL;
2699		entry = findEntryByIndex(config, config->fallbackImage);
2700	if (!path) return 1;	if (!entry || entry->skip) {
2701	if (!devicePtr) return 1;	config->fallbackImage = -1;
2702		return;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (strncmp(line, "setup", 5))
	continue;
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2703	}	}
2704
2705	lastParamPtr = bounds = line + res;	if (hasNew)
2706		config->fallbackImage++;
2707
2708		/* count the number of entries erased before this one */
2709		for (j = 0; j < config->fallbackImage; j++) {
2710		entry2 = findEntryByIndex(config, j);
2711		if (entry2->skip)
2712		config->fallbackImage--;
2713		}
2714		}
2715
2716	/* Last parameter in grub may be an optional IMAGE_DEVICE */	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	while (!isspace(*lastParamPtr))	{
2718	lastParamPtr--;	struct singleLine *line;
2719	lastParamPtr++;	char *root = NULL;
2720		int i;
2721		int j;
2722
2723	secLastParamPtr = lastParamPtr - 2;	printf("index=%d\n", index);
	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2724
2725	if (lastParamPtr + 3 > bounds) {	line =
2726	dbgPrintf("lastParamPtr going over boundary");	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727	fclose(grubConf);	entry->lines);
2728	free(line);	if (!line) {
2729	return 1;	printf("non linux entry\n");
2730		return;
2731	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2732
2733	/*	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	* Second last parameter will decide wether last parameter is	printf("kernel=%s\n", line->elements[1].item);
2735	* an IMAGE_DEVICE or INSTALL_DEVICE	else
2736	*/	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2737	while (!isspace(*secLastParamPtr))
2738	secLastParamPtr--;	if (line->numElements >= 3) {
2739	secLastParamPtr++;	printf("args=\"");
2740		i = 2;
2741	if (secLastParamPtr + 3 > bounds) {	while (i < line->numElements) {
2742	dbgPrintf("secLastParamPtr going over boundary");	if (!strncmp(line->elements[i].item, "root=", 5)) {
2743	fclose(grubConf);	root = line->elements[i].item + 5;
2744	free(line);	} else {
2745	return 1;	printf("%s%s", line->elements[i].item,
2746	}	line->elements[i].indent);
2747	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);	}
2748	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2749	secLastParamPtr += 3;	i++;
2750	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);	}
2751	installDeviceNumber = *secLastParamPtr;	printf("\"\n");
2752	} else {	} else {
2753	installDeviceNumber = *lastParamPtr;	line = getLineByType(LT_KERNELARGS, entry->lines);
2754		if (line) {
2755		char *s;
2756
2757		printf("args=\"");
2758		i = 1;
2759		while (i < line->numElements) {
2760		if (!strncmp
2761		(line->elements[i].item, "root=", 5)) {
2762		root = line->elements[i].item + 5;
2763		} else {
2764		s = line->elements[i].item;
2765
2766		printf("%s%s", s,
2767		line->elements[i].indent);
2768		}
2769
2770		i++;
2771		}
2772
2773		s = line->elements[i - 1].indent;
2774		printf("\"\n");
2775		}
2776	}	}
2777
2778	*devicePtr = malloc(6);	if (!root) {
2779	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	line = getLineByType(LT_ROOT, entry->lines);
2780	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);	if (line && line->numElements >= 2)
2781	fclose(grubConf);	root = line->elements[1].item;
2782	free(line);	}
	return 0;
	}
2783
2784	free(line);	if (root) {
2785	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;
2786
2787	while ((res = getline(&line, &len, deviceMap)) != -1) {	strcpy(s, root);
2788	if (!strncmp(line, "#", 1))	if (s[strlen(s) - 1] == '"')
2789	continue;	s[strlen(s) - 1] = '\0';
2790		/* make sure the root doesn't have a trailing " */
2791	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';
2792	}	}
2793
2794	devicePtr = line;	line =
2795	bounds = line + res;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2796		entry->lines);
2797
2798	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	if (line && line->numElements >= 2) {
2799	devicePtr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2800	dbgPrintf("device: %s\n", devicePtr);	printf("initrd=");
2801		else
2802		printf("initrd=%s", prefix);
2803
2804	if (!strncmp(devicePtr, device, strlen(device))) {	for (i = 1; i < line->numElements; i++)
2805	devicePtr += strlen(device);	printf("%s%s", line->elements[i].item,
2806	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line->elements[i].indent);
2807	devicePtr++;	printf("\n");
2808		}
2809
2810	*bootPtr = strdup(devicePtr);	line = getLineByType(LT_TITLE, entry->lines);
2811	break;	if (line) {
2812		char *entryTitle;
2813		/* if we can extractTitle, then it's a zipl config and
2814		* if not then we go ahead with what's existed prior */
2815		entryTitle = extractTitle(config, line);
2816		if (!entryTitle) {
2817		entryTitle=line->elements[1].item;
2818		}
2819		printf("title=%s\n", entryTitle);
2820		} else {
2821		char *title;
2822		line = getLineByType(LT_MENUENTRY, entry->lines);
2823		if (line) {
2824		title = grub2ExtractTitle(line);
2825		if (title)
2826		printf("title=%s\n", title);
2827		}
2828	}	}
	}
2829
2830	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2831	fclose(deviceMap);	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2832	return 0;	if (!strncmp
2833		(prefix, line->elements[1].item, strlen(prefix)))
2834		printf("mbmodule%d=", j);
2835		else
2836		printf("mbmodule%d=%s", j, prefix);
2837
2838		for (i = 1; i < line->numElements; i++)
2839		printf("%s%s", line->elements[i].item,
2840		line->elements[i].indent);
2841		printf("\n");
2842		j++;
2843		}
2844		}
2845	}	}
2846
2847	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int isSuseSystem(void)
2848	char * grubDevice;	{
2849		const char *path;
2850		const static char default_path[] = "/etc/SuSE-release";
2851
2852	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2853	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);
2854
2855	free(grubDevice);	if (!access(path, R_OK))
2856	return 0;	return 1;
2857		return 0;
2858	}	}
2859
2860	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	int isSuseGrubConf(const char *path)
2861	/*	{
2862	* This SuSE grub configuration file at this location is not your average	FILE *grubConf;
2863	* grub configuration file, but instead the grub commands used to setup	char *line = NULL;
2864	* grub on that system.	size_t len = 0, res = 0;
2865	*/
2866	const char * path;	grubConf = fopen(path, "r");
2867	const static char default_path[] = "/etc/grub.conf";	if (!grubConf) {
2868		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2869	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	path);
2870	path = default_path;	return 0;
2871		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2872
2873	if (bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2874	*bootPtr = NULL;	if (!strncmp(line, "setup", 5)) {
2875	suseGrubConfGetBoot(path, bootPtr);	fclose(grubConf);
2876	}	free(line);
2877		return 1;
2878		}
2879		}
2880
2881	return 0;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2882		path);
2883
2884		fclose(grubConf);
2885		free(line);
2886		return 0;
2887	}	}
2888
2889	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2890	FILE * in;	{
2891	char buf[1024];	FILE *grubConf;
2892	char * chptr;	char *line = NULL;
2893	char * start;	size_t res = 0, len = 0;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
2894
2895	fclose(in);	if (!path)
2896		return 1;
2897		if (!lbaPtr)
2898		return 1;
2899
2900	return 0;	grubConf = fopen(path, "r");
2901	}	if (!grubConf)
2902		return 1;
2903
2904		while ((res = getline(&line, &len, grubConf)) != -1) {
2905		if (line[res - 1] == '\n')
2906		line[res - 1] = '\0';
2907		else if (len > res)
2908		line[res] = '\0';
2909		else {
2910		line = realloc(line, res + 1);
2911		line[res] = '\0';
2912		}
2913
2914	void dumpSysconfigGrub(void) {	if (!strncmp(line, "setup", 5)) {
2915	char * boot = NULL;	if (strstr(line, "--force-lba")) {
2916	int lba;	*lbaPtr = 1;
2917		} else {
2918	if (isSuseSystem()) {	*lbaPtr = 0;
2919	if (parseSuseGrubConf(&lba, &boot)) {	}
2920	free(boot);	dbgPrintf("lba: %i\n", *lbaPtr);
2921	return;	break;
2922	}	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
2923	}	}
	}
2924
2925	if (lba) printf("lba\n");	free(line);
2926	if (boot) {	fclose(grubConf);
2927	printf("boot=%s\n", boot);	return 0;
	free(boot);
	}
2928	}	}
2929
2930	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2931	const char * prefix) {	{
2932	int i = 0;	FILE *grubConf;
2933	struct singleEntry * entry;	char *line = NULL;
2934	struct singleLine * line;	size_t res = 0, len = 0;
2935		char *lastParamPtr = NULL;
2936	entry = findEntryByPath(config, kernel, prefix, &i);	char *secLastParamPtr = NULL;
2937	if (!entry) {	char installDeviceNumber = '\0';
2938	fprintf(stderr, _("grubby: kernel not found\n"));	char *bounds = NULL;
	return 1;
	}
2939
2940	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (!path)
2941	be a better way */	return 1;
2942	if (config->cfi == &grubConfigType) {	if (!devicePtr)
2943	dumpSysconfigGrub();	return 1;
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2944
2945	line = getLineByType(LT_LBA, config->theLines);	grubConf = fopen(path, "r");
2946	if (line) printf("lba\n");	if (!grubConf)
2947	}	return 1;
2948
2949	displayEntry(entry, prefix, i);	while ((res = getline(&line, &len, grubConf)) != -1) {
2950		if (strncmp(line, "setup", 5))
2951		continue;
2952
2953		if (line[res - 1] == '\n')
2954		line[res - 1] = '\0';
2955		else if (len > res)
2956		line[res] = '\0';
2957		else {
2958		line = realloc(line, res + 1);
2959		line[res] = '\0';
2960		}
2961
2962	i++;	lastParamPtr = bounds = line + res;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
2963
2964	return 0;	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2965	}	while (!isspace(*lastParamPtr))
2966		lastParamPtr--;
2967		lastParamPtr++;
2968
2969		secLastParamPtr = lastParamPtr - 2;
2970		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2971
2972		if (lastParamPtr + 3 > bounds) {
2973		dbgPrintf("lastParamPtr going over boundary");
2974		fclose(grubConf);
2975		free(line);
2976		return 1;
2977		}
2978		if (!strncmp(lastParamPtr, "(hd", 3))
2979		lastParamPtr += 3;
2980		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2981
2982		/*
2983		* Second last parameter will decide wether last parameter is
2984		* an IMAGE_DEVICE or INSTALL_DEVICE
2985		*/
2986		while (!isspace(*secLastParamPtr))
2987		secLastParamPtr--;
2988		secLastParamPtr++;
2989
2990		if (secLastParamPtr + 3 > bounds) {
2991		dbgPrintf("secLastParamPtr going over boundary");
2992		fclose(grubConf);
2993		free(line);
2994		return 1;
2995		}
2996		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2997		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2998		secLastParamPtr += 3;
2999		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
3000		installDeviceNumber = *secLastParamPtr;
3001		} else {
3002		installDeviceNumber = *lastParamPtr;
3003		}
3004
3005	struct singleLine * addLineTmpl(struct singleEntry * entry,	*devicePtr = malloc(6);
3006	struct singleLine * tmplLine,	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3007	struct singleLine * prevLine,	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3008	const char * val,	fclose(grubConf);
3009	struct configFileInfo * cfi)	free(line);
3010	{	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);
	}
3011	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
	if (!entry->lines) {
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
3012
3013	return newLine;	free(line);
3014		fclose(grubConf);
3015		return 1;
3016	}	}
3017
3018	/* val may be NULL */	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3019	struct singleLine *  addLine(struct singleEntry * entry,	{
3020	struct configFileInfo * cfi,	FILE *deviceMap;
3021	enum lineType_e type, char * defaultIndent,	char *line = NULL;
3022	const char * val) {	size_t res = 0, len = 0;
3023	struct singleLine * line, * prev;	char *devicePtr;
3024	struct keywordTypes * kw;	char *bounds = NULL;
3025	struct singleLine tmpl;	const char *path;
3026		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 = "";
	}
	}
3027
3028	/* The last non-empty line gives us the indention to us and the line	if (!device)
3029	to insert after. Note that comments are considered empty lines, which	return 1;
3030	may not be ideal? If there are no lines or we are looking at the	if (!bootPtr)
3031	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;
	}
3032
3033	struct singleLine *menuEntry;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3034	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;
	}
3035
3036	return addLineTmpl(entry, &tmpl, prev, val, cfi);	dbgPrintf("opening grub device.map file from: %s\n", path);
3037	}	deviceMap = fopen(path, "r");
3038		if (!deviceMap)
3039		return 1;
3040
3041	void removeLine(struct singleEntry * entry, struct singleLine * line) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
3042	struct singleLine * prev;	if (!strncmp(line, "#", 1))
3043	int i;	continue;
3044
3045		if (line[res - 1] == '\n')
3046		line[res - 1] = '\0';
3047		else if (len > res)
3048		line[res] = '\0';
3049		else {
3050		line = realloc(line, res + 1);
3051		line[res] = '\0';
3052		}
3053
3054	for (i = 0; i < line->numElements; i++) {	devicePtr = line;
3055	free(line->elements[i].item);	bounds = line + res;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
3056
3057	if (line == entry->lines) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058	entry->lines = line->next;	devicePtr++;
3059	} else {	dbgPrintf("device: %s\n", devicePtr);
3060	prev = entry->lines;
3061	while (prev->next != line) prev = prev->next;	if (!strncmp(devicePtr, device, strlen(device))) {
3062	prev->next = line->next;	devicePtr += strlen(device);
3063	}	while (isspace(*devicePtr)
3064		&& ((devicePtr + 1) <= bounds))
3065		devicePtr++;
3066
3067		*bootPtr = strdup(devicePtr);
3068		break;
3069		}
3070		}
3071
3072	free(line);	free(line);
3073		fclose(deviceMap);
3074		return 0;
3075	}	}
3076
3077	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3078	{	{
3079	struct singleLine newLine = {	char *grubDevice;
	.indent = tmplLine->indent,
	.type = tmplLine->type,
	.next = tmplLine->next,
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	int j;
	int element = 0;
	char *c;
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
3080
3081	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082	/* move the end-of-line forward */	dbgPrintf("error looking for grub installation device\n");
3083	line->elements[insertHere].indent =	else
3084	line->elements[insertHere-1].indent;	dbgPrintf("grubby installation device: %s\n", grubDevice);
	line->elements[insertHere-1].indent = strdup(indent);
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
3085
3086	line->numElements++;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3087		dbgPrintf("error looking for grub boot device\n");
3088		else
3089		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3090
3091	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(grubDevice);
3092	line->elements[0].item,	return 0;
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
3093	}	}
3094
3095	static void removeElement(struct singleLine * line, int removeHere) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3096	int i;	{
3097		/*
3098	/* sanity check */	* This SuSE grub configuration file at this location is not your
3099	if (removeHere >= line->numElements) return;	* average grub configuration file, but instead the grub commands
3100		* used to setup grub on that system.
3101	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	*/
3102	removeHere, line->elements[removeHere].item);	const char *path;
3103		const static char default_path[] = "/etc/grub.conf";
3104
3105	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3106		path = default_path;
3107
3108	if (removeHere > 1) {	if (!isSuseGrubConf(path))
3109	/* 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);
	}
3110
3111	/* now collapse the array, but don't bother to realloc smaller */	if (lbaPtr) {
3112	for (i = removeHere; i < line->numElements - 1; i++)	*lbaPtr = 0;
3113	line->elements[i] = line->elements[i + 1];	if (suseGrubConfGetLba(path, lbaPtr))
3114		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;
3115	}	}
	}
3116
3117	if (!removeArgs) {	if (bootPtr) {
3118	oldArgs = malloc(sizeof(*oldArgs));	*bootPtr = NULL;
3119	*oldArgs = NULL;	suseGrubConfGetBoot(path, bootPtr);
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
3120	}	}
	}
3121
3122		return 0;
3123		}
3124
3125		int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126		{
3127		FILE *in;
3128		char buf[1024];
3129		char *chptr;
3130		char *start;
3131		char *param;
3132
3133		in = fopen("/etc/sysconfig/grub", "r");
3134		if (!in)
3135		return 1;
3136
3137	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	if (lbaPtr)
3138	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	*lbaPtr = 0;
3139		if (bootPtr)
3140		*bootPtr = NULL;
3141
3142		while (fgets(buf, sizeof(buf), in)) {
3143		start = buf;
3144		while (isspace(*start))
3145		start++;
3146		if (*start == '#')
3147		continue;
3148
3149		chptr = strchr(start, '=');
3150		if (!chptr)
3151		continue;
3152		chptr--;
3153		while (*chptr && isspace(*chptr))
3154		chptr--;
3155		chptr++;
3156		*chptr = '\0';
3157
3158		param = chptr + 1;
3159		while (*param && isspace(*param))
3160		param++;
3161		if (*param == '=') {
3162		param++;
3163		while (*param && isspace(*param))
3164		param++;
3165		}
3166
3167	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	chptr = param;
3168	&& !multibootArgs);	while (*chptr && !isspace(*chptr))
3169		chptr++;
3170		*chptr = '\0';
3171
3172		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3173		*lbaPtr = 1;
3174		else if (!strcmp(start, "boot") && bootPtr)
3175		*bootPtr = strdup(param);
3176		}
3177
3178	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	fclose(in);
3179
3180	if (multibootArgs && !entry->multiboot)	return 0;
3181	continue;	}
3182
3183	/* Determine where to put the args.  If this config supports	void dumpSysconfigGrub(void)
3184	* LT_KERNELARGS, use that.  Otherwise use	{
3185	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	char *boot = NULL;
3186	*/	int lba;
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
3187
3188		if (isSuseSystem()) {
3189		if (parseSuseGrubConf(&lba, &boot)) {
3190		free(boot);
3191		return;
3192		}
3193	} else {	} else {
3194	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);	if (parseSysconfigGrub(&lba, &boot)) {
3195	if (!line) {	free(boot);
3196	/* no LT_KERNEL or LT_MBMODULE in this entry? */	return;
3197	continue;	}
	}
	firstElement = 2;
3198	}	}
3199
3200	/* handle the elilo case which does:	if (lba)
3201	*   append="hypervisor args -- kernel args"	printf("lba\n");
3202	*/	if (boot) {
3203	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	printf("boot=%s\n", boot);
3204	/* this is a multiboot entry, make sure there's	free(boot);
3205	* -- on the args line	}
3206	*/	}
	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;
	}
	}
3207
3208	if (i < line->numElements && doreplace) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3209	/* direct replacement */	{
3210	free(line->elements[i].item);	int i = 0;
3211	line->elements[i].item = strdup(*arg);	struct singleEntry *entry;
3212		struct singleLine *line;
3213
3214		entry = findEntryByPath(config, kernel, prefix, &i);
3215		if (!entry) {
3216		fprintf(stderr, _("grubby: kernel not found\n"));
3217		return 1;
3218		}
3219
3220	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3221	/* root= replacement */	be a better way */
3222	rootLine = getLineByType(LT_ROOT, entry->lines);	if (config->cfi == &grubConfigType) {
3223	if (rootLine) {	dumpSysconfigGrub();
3224	free(rootLine->elements[1].item);	} else {
3225	rootLine->elements[1].item = strdup(*arg + 5);	line = getLineByType(LT_BOOT, config->theLines);
3226	} else {	if (line && line->numElements >= 1) {
3227	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	printf("boot=%s\n", line->elements[1].item);
	cfg->secondaryIndent, *arg + 5);
3228	}	}
	}
3229
3230	else {	line = getLineByType(LT_LBA, config->theLines);
3231	/* insert/append */	if (line)
3232	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);
3233	}	}
	}
3234
3235	free(newArgs);	displayEntry(config, entry, prefix, i);
	free(oldArgs);
3236
3237	return 0;	i++;
3238		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239		displayEntry(config, entry, prefix, i);
3240		i++;
3241		}
3242
3243		return 0;
3244	}	}
3245
3246	int updateImage(struct grubConfig * cfg, const char * image,	struct singleLine *addLineTmpl(struct singleEntry *entry,
3247	const char * prefix, const char * addArgs,	struct singleLine *tmplLine,
3248	const char * removeArgs,	struct singleLine *prevLine,
3249	const char * addMBArgs, const char * removeMBArgs) {	const char *val, struct configFileInfo *cfi)
3250	int rc = 0;	{
3251		struct singleLine *newLine = lineDup(tmplLine);
3252	if (!image) return rc;
3253		if (isEfi && cfi == &grub2ConfigType) {
3254	/* update the main args first... */	enum lineType_e old = newLine->type;
3255	if (addArgs || removeArgs)	newLine->type = preferredLineType(newLine->type, cfi);
3256	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (old != newLine->type)
3257	if (rc) return rc;	newLine->elements[0].item =
3258		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;
3259	}	}
3260
3261	break;	if (val) {
3262	}	/* override the inherited value with our own.
3263		* This is a little weak because it only applies to elements[1]
3264		*/
3265		if (newLine->numElements > 1)
3266		removeElement(newLine, 1);
3267		insertElement(newLine, val, 1, cfi);
3268
3269		/* but try to keep the rootspec from the template... sigh */
3270		if (tmplLine->
3271		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3272		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3273		LT_INITRD_16)) {
3274		char *rootspec =
3275		getRootSpecifier(tmplLine->elements[1].item);
3276		if (rootspec != NULL) {
3277		free(newLine->elements[1].item);
3278		newLine->elements[1].item =
3279		sdupprintf("%s%s", rootspec, val);
3280		}
3281		}
3282		}
3283
3284	return 0;	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285	}	newLine->elements[0].item : "");
3286
3287	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (!entry->lines) {
3288	int fd;	/* first one on the list */
3289	unsigned char bootSect[512];	entry->lines = newLine;
3290	int offset;	} else if (prevLine) {
3291		/* add after prevLine */
3292	fd = open(device, O_RDONLY);	newLine->next = prevLine->next;
3293	if (fd < 0) {	prevLine->next = newLine;
3294	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
3295
3296	if (read(fd, bootSect, 512) != 512) {	return newLine;
3297	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
	device, strerror(errno));
	return 1;
	}
	close(fd);
3298
3299	/* first three bytes should match, a jmp short should be in there */	/* val may be NULL */
3300	if (memcmp(boot, bootSect, 3))	struct singleLine *addLine(struct singleEntry *entry,
3301	return 0;	struct configFileInfo *cfi,
3302		enum lineType_e type, char *defaultIndent,
3303		const char *val)
3304		{
3305		struct singleLine *line, *prev;
3306		struct keywordTypes *kw;
3307		struct singleLine tmpl;
3308
3309	if (boot[1] == JMP_SHORT_OPCODE) {	/* NB: This function shouldn't allocate items on the heap, rather on
3310	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.
3311	*/	*/
3312	if ((bootSect[offset + 1] == NOOP_OPCODE)	if (type == LT_TITLE && cfi->titleBracketed) {
3313	&& (bootSect[offset + 2] == NOOP_OPCODE)) {	/* we're doing a bracketed title (zipl) */
3314	offset = offset + 3;	tmpl.type = type;
3315	}	tmpl.numElements = 1;
3316	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {	tmpl.elements = alloca(sizeof(*tmpl.elements));
3317	offset = (boot[2] << 8) + boot[1] + 2;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3318	} else {	sprintf(tmpl.elements[0].item, "[%s]", val);
3319	return 0;	tmpl.elements[0].indent = "";
3320	}	val = NULL;
3321		} else if (type == LT_MENUENTRY) {
3322		char *lineend = "--class gnu-linux --class gnu --class os {";
3323		if (!val) {
3324		fprintf(stderr,
3325		"Line type LT_MENUENTRY requires a value\n");
3326		abort();
3327		}
3328		kw = getKeywordByType(type, cfi);
3329		if (!kw) {
3330		fprintf(stderr,
3331		"Looking up keyword for unknown type %d\n",
3332		type);
3333		abort();
3334		}
3335		tmpl.indent = "";
3336		tmpl.type = type;
3337		tmpl.numElements = 3;
3338		tmpl.elements =
3339		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3340		tmpl.elements[0].item = kw->key;
3341		tmpl.elements[0].indent = alloca(2);
3342		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3343		tmpl.elements[1].item = (char *)val;
3344		tmpl.elements[1].indent = alloca(2);
3345		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3346		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3347		strcpy(tmpl.elements[2].item, lineend);
3348		tmpl.elements[2].indent = "";
3349		} else {
3350		kw = getKeywordByType(type, cfi);
3351		if (!kw) {
3352		fprintf(stderr,
3353		"Looking up keyword for unknown type %d\n",
3354		type);
3355		abort();
3356		}
3357		tmpl.type = type;
3358		tmpl.numElements = val ? 2 : 1;
3359		tmpl.elements =
3360		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3361		tmpl.elements[0].item = kw->key;
3362		tmpl.elements[0].indent = alloca(2);
3363		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3364		if (val) {
3365		tmpl.elements[1].item = (char *)val;
3366		tmpl.elements[1].indent = "";
3367		}
3368		}
3369
3370	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	/* The last non-empty line gives us the indention to us and the line
3371	return 0;	* to insert after. Note that comments are considered empty lines,
3372		* which may not be ideal? If there are no lines or we are looking at
3373		* the first line, we use defaultIndent (the first line is normally
3374		* indented differently from the rest) */
3375		for (line = entry->lines, prev = NULL; line; line = line->next) {
3376		if (line->numElements)
3377		prev = line;
3378		/* fall back on the last line if prev isn't otherwise set */
3379		if (!line->next && !prev)
3380		prev = line;
3381		}
3382
3383		struct singleLine *menuEntry;
3384		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3385		if (tmpl.type == LT_ENTRY_END) {
3386		if (menuEntry)
3387		tmpl.indent = menuEntry->indent;
3388		else
3389		tmpl.indent = defaultIndent ? : "";
3390		} else if (tmpl.type != LT_MENUENTRY) {
3391		if (menuEntry)
3392		tmpl.indent = "\t";
3393		else if (prev == entry->lines)
3394		tmpl.indent = defaultIndent ? : "";
3395		else
3396		tmpl.indent = prev->indent;
3397		}
3398
3399	return 2;	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3400	}	}
3401
3402	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3403	int fd;	{
3404	char buf[65536];	struct singleLine *prev;
3405	char * end;	int i;
	char * chptr;
	char * chptr2;
	int rc;
3406
3407	/* it's on raid; we need to parse /proc/mdstat and check all of the	for (i = 0; i < line->numElements; i++) {
3408	*raw* devices listed in there */	free(line->elements[i].item);
3409		free(line->elements[i].indent);
3410		}
3411		free(line->elements);
3412		free(line->indent);
3413
3414	if (!strncmp(mdDev, "/dev/", 5))	if (line == entry->lines) {
3415	mdDev += 5;	entry->lines = line->next;
3416		} else {
3417		prev = entry->lines;
3418		while (prev->next != line)
3419		prev = prev->next;
3420		prev->next = line->next;
3421		}
3422
3423	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	free(line);
3424	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	}
	strerror(errno));
	return 2;
	}
3425
3426	rc = read(fd, buf, sizeof(buf) - 1);	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3427	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3428	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	struct singleLine newLine = {
3429	strerror(errno));	.indent = tmplLine->indent,
3430	close(fd);	.type = tmplLine->type,
3431	return 2;	.next = tmplLine->next,
3432	}	};
3433	close(fd);	int firstQuotedItem = -1;
3434	buf[rc] = '\0';	int quoteLen = 0;
3435		int j;
3436		int element = 0;
3437		char *c;
3438
3439	chptr = buf;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3440	while (*chptr) {	strcpy(c, tmplLine->elements[0].item);
3441	end = strchr(chptr, '\n');	insertElement(&newLine, c, element++, cfi);
3442	if (!end) break;	free(c);
3443	*end = '\0';	c = NULL;
3444
3445		for (j = 1; j < tmplLine->numElements; j++) {
3446		if (firstQuotedItem == -1) {
3447		quoteLen += strlen(tmplLine->elements[j].item);
3448
3449		if (isquote(tmplLine->elements[j].item[0])) {
3450		firstQuotedItem = j;
3451		quoteLen +=
3452		strlen(tmplLine->elements[j].indent);
3453		} else {
3454		c = malloc(quoteLen + 1);
3455		strcpy(c, tmplLine->elements[j].item);
3456		insertElement(&newLine, c, element++, cfi);
3457		free(c);
3458		quoteLen = 0;
3459		}
3460		} else {
3461		int itemlen = strlen(tmplLine->elements[j].item);
3462		quoteLen += itemlen;
3463		quoteLen += strlen(tmplLine->elements[j].indent);
3464
3465		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3466		c = malloc(quoteLen + 1);
3467		c[0] = '\0';
3468		for (int i = firstQuotedItem; i < j + 1; i++) {
3469		strcat(c, tmplLine->elements[i].item);
3470		strcat(c, tmplLine->elements[i].indent);
3471		}
3472		insertElement(&newLine, c, element++, cfi);
3473		free(c);
3474
3475		firstQuotedItem = -1;
3476		quoteLen = 0;
3477		}
3478		}
3479		}
3480		while (tmplLine->numElements)
3481		removeElement(tmplLine, 0);
3482		if (tmplLine->elements)
3483		free(tmplLine->elements);
3484
3485		tmplLine->numElements = newLine.numElements;
3486		tmplLine->elements = newLine.elements;
3487		}
3488
3489	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	static void insertElement(struct singleLine *line,
3490	chptr[strlen(mdDev)] == ' ') {	const char *item, int insertHere,
3491		struct configFileInfo *cfi)
3492		{
3493		struct keywordTypes *kw;
3494		char indent[2] = "";
3495
3496	/* found the device */	/* sanity check */
3497	while (*chptr && *chptr != ':') chptr++;	if (insertHere > line->numElements) {
3498	chptr++;	dbgPrintf
3499	while (*chptr && isspace(*chptr)) chptr++;	("insertElement() adjusting insertHere from %d to %d\n",
3500		insertHere, line->numElements);
3501	/* skip the "active" bit */	insertHere = line->numElements;
3502	while (*chptr && !isspace(*chptr)) chptr++;	}
3503	while (*chptr && isspace(*chptr)) chptr++;
3504		line->elements = realloc(line->elements, (line->numElements + 1) *
3505	/* skip the raid level */	sizeof(*line->elements));
3506	while (*chptr && !isspace(*chptr)) chptr++;	memmove(&line->elements[insertHere + 1],
3507	while (*chptr && isspace(*chptr)) chptr++;	&line->elements[insertHere],
3508		(line->numElements - insertHere) * sizeof(*line->elements));
3509	/* everything else is partition stuff */	line->elements[insertHere].item = strdup(item);
3510	while (*chptr) {
3511	chptr2 = chptr;	kw = getKeywordByType(line->type, cfi);
3512	while (*chptr2 && *chptr2 != '[') chptr2++;
3513	if (!*chptr2) break;	if (line->numElements == 0) {
3514		indent[0] = '\0';
3515	/* yank off the numbers at the end */	} else if (insertHere == 0) {
3516	chptr2--;	indent[0] = kw->nextChar;
3517	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;	} else if (kw->separatorChar != '\0') {
3518	chptr2++;	indent[0] = kw->separatorChar;
3519	*chptr2 = '\0';	} else {
3520		indent[0] = ' ';
3521	/* 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++;
	}
3522
3523	/*  we're good to go */	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3524	return 2;	/* move the end-of-line forward */
3525		line->elements[insertHere].indent =
3526		line->elements[insertHere - 1].indent;
3527		line->elements[insertHere - 1].indent = strdup(indent);
3528		} else {
3529		line->elements[insertHere].indent = strdup(indent);
3530	}	}
3531
3532	chptr = end + 1;	line->numElements++;
	}
3533
3534	fprintf(stderr,	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3535	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	line->elements[0].item,
3536	mdDev);	line->elements[insertHere].item,
3537	return 0;	line->elements[insertHere].indent, insertHere);
3538	}	}
3539
3540	int checkForLilo(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3541	int fd;	{
3542	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;
	}
3543
3544	if (line->numElements != 2) return 1;	/* sanity check */
3545		if (removeHere >= line->numElements)
3546		return;
3547
3548		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3549		removeHere, line->elements[removeHere].item);
3550
3551		free(line->elements[removeHere].item);
3552
3553		if (removeHere > 1) {
3554		/* previous argument gets this argument's post-indentation */
3555		free(line->elements[removeHere - 1].indent);
3556		line->elements[removeHere - 1].indent =
3557		line->elements[removeHere].indent;
3558		} else {
3559		free(line->elements[removeHere].indent);
3560		}
3561
3562	fd = open("/boot/boot.b", O_RDONLY);	/* now collapse the array, but don't bother to realloc smaller */
3563	if (fd < 0) {	for (i = removeHere; i < line->numElements - 1; i++)
3564	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	line->elements[i] = line->elements[i + 1];
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3565
3566	if (read(fd, boot, 512) != 512) {	line->numElements--;
3567	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	}
3568	"/boot/boot.b", strerror(errno));
3569	return 1;	int argMatch(const char *one, const char *two)
3570	}	{
3571	close(fd);	char *first, *second;
3572		char *chptr;
3573
3574	if (!strncmp("/dev/md", line->elements[1].item, 7))	first = strcpy(alloca(strlen(one) + 1), one);
3575	return checkLiloOnRaid(line->elements[1].item, boot);	second = strcpy(alloca(strlen(two) + 1), two);
3576
3577	return checkDeviceBootloader(line->elements[1].item, boot);	chptr = strchr(first, '=');
3578		if (chptr)
3579		*chptr = '\0';
3580
3581		chptr = strchr(second, '=');
3582		if (chptr)
3583		*chptr = '\0';
3584
3585		return strcmp(first, second);
3586	}	}
3587
3588	int checkForGrub2(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3589	if (!access("/etc/grub.d/", R_OK))	const char *prefix, const char *addArgs,
3590	return 2;	const char *removeArgs, int multibootArgs)
3591		{
3592		struct singleEntry *entry;
3593		struct singleLine *line, *rootLine;
3594		int index = 0;
3595		int i, k;
3596		const char **newArgs, **oldArgs;
3597		const char **arg;
3598		int useKernelArgs, useRoot;
3599		int firstElement;
3600		int *usedElements;
3601		int doreplace;
3602
3603		if (!image)
3604		return 0;
3605
3606		if (!addArgs) {
3607		newArgs = malloc(sizeof(*newArgs));
3608		*newArgs = NULL;
3609		} else {
3610		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3611		fprintf(stderr,
3612		_("grubby: error separating arguments '%s'\n"),
3613		addArgs);
3614		return 1;
3615		}
3616		}
3617
3618		if (!removeArgs) {
3619		oldArgs = malloc(sizeof(*oldArgs));
3620		*oldArgs = NULL;
3621		} else {
3622		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3623		fprintf(stderr,
3624		_("grubby: error separating arguments '%s'\n"),
3625		removeArgs);
3626		free(newArgs);
3627		return 1;
3628		}
3629		}
3630
3631		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3632		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3633
3634		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3635		&& !multibootArgs);
3636
3637	return 1;	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3638
3639		if (multibootArgs && !entry->multiboot)
3640		continue;
3641
3642		/* Determine where to put the args.  If this config supports
3643		* LT_KERNELARGS, use that.  Otherwise use
3644		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3645		*/
3646		if (useKernelArgs) {
3647		line = getLineByType(LT_KERNELARGS, entry->lines);
3648		if (!line) {
3649		/* no LT_KERNELARGS, need to add it */
3650		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3651		cfg->secondaryIndent, NULL);
3652		}
3653		firstElement = 1;
3654
3655		} else if (multibootArgs) {
3656		line = getLineByType(LT_HYPER, entry->lines);
3657		if (!line) {
3658		/* a multiboot entry without LT_HYPER? */
3659		continue;
3660		}
3661		firstElement = 2;
3662
3663		} else {
3664		line =
3665		getLineByType(LT_KERNEL | LT_MBMODULE |
3666		LT_KERNEL_EFI | LT_KERNEL_16,
3667		entry->lines);
3668		if (!line) {
3669		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3670		continue;
3671		}
3672		firstElement = 2;
3673		}
3674
3675		/* handle the elilo case which does:
3676		*   append="hypervisor args -- kernel args"
3677		*/
3678		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3679		/* this is a multiboot entry, make sure there's
3680		* -- on the args line
3681		*/
3682		for (i = firstElement; i < line->numElements; i++) {
3683		if (!strcmp(line->elements[i].item, "--"))
3684		break;
3685		}
3686		if (i == line->numElements) {
3687		/* assume all existing args are kernel args,
3688		* prepend -- to make it official
3689		*/
3690		insertElement(line, "--", firstElement,
3691		cfg->cfi);
3692		i = firstElement;
3693		}
3694		if (!multibootArgs) {
3695		/* kernel args start after the -- */
3696		firstElement = i + 1;
3697		}
3698		} else if (cfg->cfi->mbConcatArgs) {
3699		/* this is a non-multiboot entry, remove hyper args */
3700		for (i = firstElement; i < line->numElements; i++) {
3701		if (!strcmp(line->elements[i].item, "--"))
3702		break;
3703		}
3704		if (i < line->numElements) {
3705		/* remove args up to -- */
3706		while (strcmp
3707		(line->elements[firstElement].item,
3708		"--"))
3709		removeElement(line, firstElement);
3710		/* remove -- */
3711		removeElement(line, firstElement);
3712		}
3713		}
3714
3715		usedElements = calloc(line->numElements, sizeof(*usedElements));
3716
3717		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3718
3719		doreplace = 1;
3720		for (i = firstElement; i < line->numElements; i++) {
3721		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3722		!strcmp(line->elements[i].item, "--")) {
3723		/* reached the end of hyper args, insert here */
3724		doreplace = 0;
3725		break;
3726		}
3727		if (usedElements[i])
3728		continue;
3729		if (!argMatch(line->elements[i].item, *arg)) {
3730		usedElements[i] = 1;
3731		break;
3732		}
3733		}
3734
3735		if (i < line->numElements && doreplace) {
3736		/* direct replacement */
3737		free(line->elements[i].item);
3738		line->elements[i].item = strdup(*arg);
3739
3740		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3741		/* root= replacement */
3742		rootLine = getLineByType(LT_ROOT, entry->lines);
3743		if (rootLine) {
3744		free(rootLine->elements[1].item);
3745		rootLine->elements[1].item =
3746		strdup(*arg + 5);
3747		} else {
3748		rootLine =
3749		addLine(entry, cfg->cfi, LT_ROOT,
3750		cfg->secondaryIndent,
3751		*arg + 5);
3752		}
3753		}
3754
3755		else {
3756		/* insert/append */
3757		insertElement(line, *arg, i, cfg->cfi);
3758		usedElements =
3759		realloc(usedElements,
3760		line->numElements *
3761		sizeof(*usedElements));
3762		memmove(&usedElements[i + 1], &usedElements[i],
3763		line->numElements - i - 1);
3764		usedElements[i] = 1;
3765
3766		/* if we updated a root= here even though
3767		* there is a LT_ROOT available we need to
3768		* remove the LT_ROOT entry (this will happen
3769		* if we switch from a device to a label) */
3770		if (useRoot && !strncmp(*arg, "root=", 5)) {
3771		rootLine =
3772		getLineByType(LT_ROOT,
3773		entry->lines);
3774		if (rootLine)
3775		removeLine(entry, rootLine);
3776		}
3777		}
3778		}
3779
3780		free(usedElements);
3781
3782		for (arg = oldArgs; *arg; arg++) {
3783		for (i = firstElement; i < line->numElements; i++) {
3784		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3785		!strcmp(line->elements[i].item, "--"))
3786		/* reached the end of hyper args, stop here */
3787		break;
3788		if (!argMatch(line->elements[i].item, *arg)) {
3789		removeElement(line, i);
3790		break;
3791		}
3792		}
3793		/* handle removing LT_ROOT line too */
3794		if (useRoot && !strncmp(*arg, "root=", 5)) {
3795		rootLine = getLineByType(LT_ROOT, entry->lines);
3796		if (rootLine)
3797		removeLine(entry, rootLine);
3798		}
3799		}
3800
3801		if (line->numElements == 1) {
3802		/* don't need the line at all (note it has to be a
3803		LT_KERNELARGS for this to happen */
3804		removeLine(entry, line);
3805		}
3806		}
3807
3808		free(newArgs);
3809		free(oldArgs);
3810
3811		return 0;
3812	}	}
3813
3814	int checkForGrub(struct grubConfig * config) {	int updateImage(struct grubConfig *cfg, const char *image,
3815	int fd;	const char *prefix, const char *addArgs,
3816	unsigned char bootSect[512];	const char *removeArgs,
3817	char * boot;	const char *addMBArgs, const char *removeMBArgs)
3818	int onSuse = isSuseSystem();	{
3819		int rc = 0;
3820
3821		if (!image)
3822		return rc;
3823
3824	if (onSuse) {	/* update the main args first... */
3825	if (parseSuseGrubConf(NULL, &boot))	if (addArgs || removeArgs)
3826	return 0;	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3827	} else {	0);
3828	if (parseSysconfigGrub(NULL, &boot))	if (rc)
3829	return 0;	return rc;
3830	}
3831		/* and now any multiboot args */
3832		if (addMBArgs || removeMBArgs)
3833		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3834		removeMBArgs, 1);
3835		return rc;
3836		}
3837
3838		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3839		const char *image, const char *prefix, const char *initrd,
3840		const char *title)
3841		{
3842		struct singleEntry *entry;
3843		struct singleLine *line, *kernelLine, *endLine = NULL;
3844		int index = 0;
3845
3846		if (!image)
3847		return 0;
3848
3849		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3850		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3851		if (!kernelLine)
3852		continue;
3853
3854		/* if title is supplied, the entry's title must match it. */
3855		if (title) {
3856		char *linetitle;
3857
3858		line =
3859		getLineByType(LT_TITLE | LT_MENUENTRY,
3860		entry->lines);
3861		if (!line)
3862		continue;
3863
3864		linetitle = extractTitle(cfg, line);
3865		if (!linetitle)
3866		continue;
3867		if (strcmp(title, linetitle)) {
3868		free(linetitle);
3869		continue;
3870		}
3871		free(linetitle);
3872		}
3873
3874		if (prefix) {
3875		int prefixLen = strlen(prefix);
3876		if (!strncmp(initrd, prefix, prefixLen))
3877		initrd += prefixLen;
3878		}
3879		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3880		if (endLine)
3881		removeLine(entry, endLine);
3882		line =
3883		addLine(entry, cfg->cfi,
3884		preferredLineType(LT_MBMODULE, cfg->cfi),
3885		kernelLine->indent, initrd);
3886		if (!line)
3887		return 1;
3888		if (endLine) {
3889		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3890		if (!line)
3891		return 1;
3892		}
3893
3894		break;
3895		}
3896
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3897	return 0;	return 0;
3898		}
3899
3900		int updateInitrd(struct grubConfig *cfg, const char *image,
3901		const char *prefix, const char *initrd, const char *title)
3902		{
3903		struct singleEntry *entry;
3904		struct singleLine *line, *kernelLine, *endLine = NULL;
3905		int index = 0;
3906
3907		if (!image)
3908		return 0;
3909
3910		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3911		kernelLine =
3912		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3913		entry->lines);
3914		if (!kernelLine)
3915		continue;
3916
3917		/* if title is supplied, the entry's title must match it. */
3918		if (title) {
3919		char *linetitle;
3920
3921		line =
3922		getLineByType(LT_TITLE | LT_MENUENTRY,
3923		entry->lines);
3924		if (!line)
3925		continue;
3926
3927		linetitle = extractTitle(cfg, line);
3928		if (!linetitle)
3929		continue;
3930		if (strcmp(title, linetitle)) {
3931		free(linetitle);
3932		continue;
3933		}
3934		free(linetitle);
3935		}
3936
3937		line =
3938		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3939		entry->lines);
3940		if (line)
3941		removeLine(entry, line);
3942		if (prefix) {
3943		int prefixLen = strlen(prefix);
3944		if (!strncmp(initrd, prefix, prefixLen))
3945		initrd += prefixLen;
3946		}
3947		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3948		if (endLine)
3949		removeLine(entry, endLine);
3950		enum lineType_e lt;
3951		switch (kernelLine->type) {
3952		case LT_KERNEL:
3953		lt = LT_INITRD;
3954		break;
3955		case LT_KERNEL_EFI:
3956		lt = LT_INITRD_EFI;
3957		break;
3958		case LT_KERNEL_16:
3959		lt = LT_INITRD_16;
3960		break;
3961		default:
3962		lt = preferredLineType(LT_INITRD, cfg->cfi);
3963		}
3964		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3965		if (!line)
3966		return 1;
3967		if (endLine) {
3968		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3969		if (!line)
3970		return 1;
3971		}
3972
3973		break;
3974		}
3975
	fd = open("/boot/grub/stage1", O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3976	return 0;	return 0;
3977		}
3978
3979	if (read(fd, bootSect, 512) != 512) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3980	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
3981	"/boot/grub/stage1", strerror(errno));	int fd;
3982	close(fd);	unsigned char bootSect[512];
3983	return 1;	int offset;
3984	}
3985	close(fd);	fd = open(device, O_RDONLY);
3986		if (fd < 0) {
3987		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3988		device, strerror(errno));
3989		return 1;
3990		}
3991
3992	/* The more elaborate checks do not work on SuSE. The checks done	if (read(fd, bootSect, 512) != 512) {
3993	* seem to be reasonble (at least for now), so just return success	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3994	*/	device, strerror(errno));
3995	if (onSuse)	return 1;
3996	return 2;	}
3997		close(fd);
3998
3999		/* first three bytes should match, a jmp short should be in there */
4000		if (memcmp(boot, bootSect, 3))
4001		return 0;
4002
4003		if (boot[1] == JMP_SHORT_OPCODE) {
4004		offset = boot[2] + 2;
4005		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4006		offset = (boot[3] << 8) + boot[2] + 2;
4007		} else if (boot[0] == JMP_SHORT_OPCODE) {
4008		offset = boot[1] + 2;
4009		/*
4010		* it looks like grub, when copying stage1 into the mbr,
4011		* patches stage1 right after the JMP location, replacing
4012		* other instructions such as JMPs for NOOPs. So, relax the
4013		* check a little bit by skipping those different bytes.
4014		*/
4015		if ((bootSect[offset + 1] == NOOP_OPCODE)
4016		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4017		offset = offset + 3;
4018		}
4019		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4020		offset = (boot[2] << 8) + boot[1] + 2;
4021		} else {
4022		return 0;
4023		}
4024
4025		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4026		return 0;
4027
4028	return checkDeviceBootloader(boot, bootSect);	return 2;
4029	}	}
4030
4031	int checkForExtLinux(struct grubConfig * config) {	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4032	int fd;	{
4033	unsigned char bootSect[512];	int fd;
4034	char * boot;	char buf[65536];
4035	char executable[] = "/boot/extlinux/extlinux";	char *end;
4036		char *chptr;
4037		char *chptr2;
4038		int rc;
4039
4040		/* it's on raid; we need to parse /proc/mdstat and check all of the
4041		*raw* devices listed in there */
4042
4043		if (!strncmp(mdDev, "/dev/", 5))
4044		mdDev += 5;
4045
4046		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4047		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4048		strerror(errno));
4049		return 2;
4050		}
4051
4052		rc = read(fd, buf, sizeof(buf) - 1);
4053		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4054		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4055		strerror(errno));
4056		close(fd);
4057		return 2;
4058		}
4059		close(fd);
4060		buf[rc] = '\0';
4061
4062	printf("entered: checkForExtLinux()\n");	chptr = buf;
4063		while (*chptr) {
4064		end = strchr(chptr, '\n');
4065		if (!end)
4066		break;
4067		*end = '\0';
4068
4069	if (parseSysconfigGrub(NULL, &boot))	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4070	return 0;	chptr[strlen(mdDev)] == ' ') {
4071
4072	/* assume grub is not installed -- not an error condition */	/* found the device */
4073	if (!boot)	while (*chptr && *chptr != ':')
4074	return 0;	chptr++;
4075		chptr++;
4076		while (*chptr && isspace(*chptr))
4077		chptr++;
4078
4079		/* skip the "active" bit */
4080		while (*chptr && !isspace(*chptr))
4081		chptr++;
4082		while (*chptr && isspace(*chptr))
4083		chptr++;
4084
4085		/* skip the raid level */
4086		while (*chptr && !isspace(*chptr))
4087		chptr++;
4088		while (*chptr && isspace(*chptr))
4089		chptr++;
4090
4091		/* everything else is partition stuff */
4092		while (*chptr) {
4093		chptr2 = chptr;
4094		while (*chptr2 && *chptr2 != '[')
4095		chptr2++;
4096		if (!*chptr2)
4097		break;
4098
4099		/* yank off the numbers at the end */
4100		chptr2--;
4101		while (isdigit(*chptr2) && chptr2 > chptr)
4102		chptr2--;
4103		chptr2++;
4104		*chptr2 = '\0';
4105
4106		/* Better, now we need the /dev/ back. We're
4107		* done with everything before this point, so
4108		* we can just put the /dev/ part there.
4109		* There will always be room. */
4110		memcpy(chptr - 5, "/dev/", 5);
4111		rc = checkDeviceBootloader(chptr - 5, boot);
4112		if (rc != 2) {
4113		return rc;
4114		}
4115
4116		chptr = chptr2 + 1;
4117		/* skip the [11] bit */
4118		while (*chptr && !isspace(*chptr))
4119		chptr++;
4120		/* and move to the next one */
4121		while (*chptr && isspace(*chptr))
4122		chptr++;
4123		}
4124
4125		/*  we're good to go */
4126		return 2;
4127		}
4128
4129		chptr = end + 1;
4130		}
4131
4132	fd = open(executable, O_RDONLY);	fprintf(stderr,
4133	if (fd < 0)	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4134	/* this doesn't exist if grub hasn't been installed */	mdDev);
4135	return 0;	return 0;
4136		}
4137
4138	if (read(fd, bootSect, 512) != 512) {	int checkForLilo(struct grubConfig *config)
4139	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
4140	executable, strerror(errno));	int fd;
4141	return 1;	unsigned char boot[512];
4142	}	struct singleLine *line;
	close(fd);
4143
4144	return checkDeviceBootloader(boot, bootSect);	for (line = config->theLines; line; line = line->next)
4145		if (line->type == LT_BOOT)
4146		break;
4147
4148		if (!line) {
4149		fprintf(stderr,
4150		_
4151		("grubby: no boot line found in lilo configuration\n"));
4152		return 1;
4153		}
4154
4155		if (line->numElements != 2)
4156		return 1;
4157
4158		fd = open("/boot/boot.b", O_RDONLY);
4159		if (fd < 0) {
4160		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4161		"/boot/boot.b", strerror(errno));
4162		return 1;
4163		}
4164
4165		if (read(fd, boot, 512) != 512) {
4166		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4167		"/boot/boot.b", strerror(errno));
4168		return 1;
4169		}
4170		close(fd);
4171
4172		if (!strncmp("/dev/md", line->elements[1].item, 7))
4173		return checkLiloOnRaid(line->elements[1].item, boot);
4174
4175		return checkDeviceBootloader(line->elements[1].item, boot);
4176	}	}
4177
4178	int checkForYaboot(struct grubConfig * config) {	int checkForGrub2(struct grubConfig *config)
4179	/*	{
4180	* This is a simplistic check that we consider good enough for own puporses	if (!access("/etc/grub.d/", R_OK))
4181	*	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;
4182
4183	return 1;	return 1;
4184	}	}
4185
4186	int checkForElilo(struct grubConfig * config) {	int checkForGrub(struct grubConfig *config)
4187	if (!access("/etc/elilo.conf", R_OK))	{
4188	return 2;	int fd;
4189		unsigned char bootSect[512];
4190		char *boot;
4191		int onSuse = isSuseSystem();
4192
4193		if (onSuse) {
4194		if (parseSuseGrubConf(NULL, &boot))
4195		return 0;
4196		} else {
4197		if (parseSysconfigGrub(NULL, &boot))
4198		return 0;
4199		}
4200
4201		/* assume grub is not installed -- not an error condition */
4202		if (!boot)
4203		return 0;
4204
4205		fd = open("/boot/grub/stage1", O_RDONLY);
4206		if (fd < 0)
4207		/* this doesn't exist if grub hasn't been installed */
4208		return 0;
4209
4210		if (read(fd, bootSect, 512) != 512) {
4211		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4212		"/boot/grub/stage1", strerror(errno));
4213		close(fd);
4214		return 1;
4215		}
4216		close(fd);
4217
4218		/* The more elaborate checks do not work on SuSE. The checks done
4219		* seem to be reasonble (at least for now), so just return success
4220		*/
4221		if (onSuse)
4222		return 2;
4223
4224	return 1;	return checkDeviceBootloader(boot, bootSect);
4225	}	}
4226
4227	static char * getRootSpecifier(char * str) {	int checkForExtLinux(struct grubConfig *config)
4228	char * idx, * rootspec = NULL;	{
4229		int fd;
4230		unsigned char bootSect[512];
4231		char *boot;
4232		char executable[] = "/boot/extlinux/extlinux";
4233
4234	if (*str == '(') {	printf("entered: checkForExtLinux()\n");
4235	idx = rootspec = strdup(str);
4236	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (parseSysconfigGrub(NULL, &boot))
4237	*(++idx) = '\0';	return 0;
4238	}
4239	return rootspec;	/* assume grub is not installed -- not an error condition */
4240		if (!boot)
4241		return 0;
4242
4243		fd = open(executable, O_RDONLY);
4244		if (fd < 0)
4245		/* this doesn't exist if grub hasn't been installed */
4246		return 0;
4247
4248		if (read(fd, bootSect, 512) != 512) {
4249		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4250		executable, strerror(errno));
4251		return 1;
4252		}
4253		close(fd);
4254
4255		return checkDeviceBootloader(boot, bootSect);
4256	}	}
4257
4258	static char * getInitrdVal(struct grubConfig * config,	int checkForYaboot(struct grubConfig *config)
4259	const char * prefix, struct singleLine *tmplLine,	{
4260	const char * newKernelInitrd,	/*
4261	const char ** extraInitrds, int extraInitrdCount)	* This is a simplistic check that we consider good enough for own puporses
4262	{	*
4263	char *initrdVal, *end;	* If we were to properly check if yaboot is *installed* we'd need to:
4264	int i;	* 1) get the system boot device (LT_BOOT)
4265	size_t totalSize;	* 2) considering it's a raw filesystem, check if the yaboot binary matches
4266	size_t prefixLen;	*    the content on the boot device
4267	char separatorChar;	* 3) if not, copy the binary to a temporary file and run "addnote" on it
4268		* 4) check again if binary and boot device contents match
4269	prefixLen = strlen(prefix);	*/
4270	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	if (!access("/etc/yaboot.conf", R_OK))
4271		return 2;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4272
4273	initrdVal = end = malloc(totalSize);	return 1;
4274		}
4275
4276	end = stpcpy (end, newKernelInitrd + prefixLen);	int checkForElilo(struct grubConfig *config)
4277		{
4278		if (!access("/etc/elilo.conf", R_OK))
4279		return 2;
4280
4281	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	return 1;
4282	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
4283
4284	extraInitrd = extraInitrds[i] + prefixLen;	static char *getRootSpecifier(char *str)
4285	/* Don't add entries that are already there */	{
4286	if (tmplLine != NULL) {	char *idx, *rootspec = NULL;
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4287
4288	if (j != tmplLine->numElements)	if (*str == '(') {
4289	continue;	idx = rootspec = strdup(str);
4290		while (*idx && (*idx != ')') && (!isspace(*idx)))
4291		idx++;
4292		*(++idx) = '\0';
4293	}	}
4294		return rootspec;
4295		}
4296
4297	*end++ = separatorChar;	static char *getInitrdVal(struct grubConfig *config,
4298	end = stpcpy(end, extraInitrd);	const char *prefix, struct singleLine *tmplLine,
4299	}	const char *newKernelInitrd,
4300		const char **extraInitrds, int extraInitrdCount)
4301		{
4302		char *initrdVal, *end;
4303		int i;
4304		size_t totalSize;
4305		size_t prefixLen;
4306		char separatorChar;
4307
4308		prefixLen = strlen(prefix);
4309		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4310
4311		for (i = 0; i < extraInitrdCount; i++) {
4312		totalSize += sizeof(separatorChar);
4313		totalSize += strlen(extraInitrds[i]) - prefixLen;
4314		}
4315
4316		initrdVal = end = malloc(totalSize);
4317
4318		end = stpcpy(end, newKernelInitrd + prefixLen);
4319
4320		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4321		for (i = 0; i < extraInitrdCount; i++) {
4322		const char *extraInitrd;
4323		int j;
4324
4325		extraInitrd = extraInitrds[i] + prefixLen;
4326		/* Don't add entries that are already there */
4327		if (tmplLine != NULL) {
4328		for (j = 2; j < tmplLine->numElements; j++)
4329		if (strcmp
4330		(extraInitrd,
4331		tmplLine->elements[j].item) == 0)
4332		break;
4333
4334	return initrdVal;	if (j != tmplLine->numElements)
4335		continue;
4336		}
4337
4338		*end++ = separatorChar;
4339		end = stpcpy(end, extraInitrd);
4340		}
4341
4342		return initrdVal;
4343	}	}
4344
4345	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4346	const char * prefix,	const char *prefix,
4347	const char * newKernelPath, const char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4348	const char * newKernelArgs, const char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4349	const char ** extraInitrds, int extraInitrdCount,	const char **extraInitrds, int extraInitrdCount,
4350	const char * newMBKernel, const char * newMBKernelArgs) {	const char *newMBKernel, const char *newMBKernelArgs,
4351	struct singleEntry * new;	const char *newDevTreePath, int newIndex)
4352	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	{
4353	int needs;	struct singleEntry *new, *entry, *prev = NULL;
4354	char * chptr;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4355		int needs;
4356	if (!newKernelPath) return 0;	char *indexs;
4357		char *chptr;
4358	/* if the newKernelTitle is too long silently munge it into something	int rc;
4359	* we can live with. truncating is first check, then we'll just mess with
4360	* it until it looks better */	if (!newKernelPath)
4361	if (config->cfi->maxTitleLength &&	return 0;
4362
4363		rc = asprintf(&indexs, "%d", newIndex);
4364		if (rc < 0)
4365		return 1;
4366
4367		/* if the newKernelTitle is too long silently munge it into something
4368		* we can live with. truncating is first check, then we'll just mess with
4369		* it until it looks better */
4370		if (config->cfi->maxTitleLength &&
4371	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4372	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4373	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4374	int i = 1;	int i = 1;
4375
4376		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4377		newKernelTitle);
4378		while (findEntryByPath(config, buf, NULL, NULL)) {
4379		sprintf(numBuf, "%d", i++);
4380		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4381		}
4382
4383	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);
4384	}	}
4385
4386	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4387	}	new->skip = 0;
4388		new->multiboot = 0;
4389		new->lines = NULL;
4390		entry = config->entries;
4391		for (unsigned int i = 0; i < newIndex; i++) {
4392		if (!entry)
4393		break;
4394		prev = entry;
4395		entry = entry->next;
4396		}
4397		new->next = entry;
4398
4399	new = malloc(sizeof(*new));	if (prev)
4400	new->skip = 0;	prev->next = new;
4401	new->multiboot = 0;	else
4402	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;
	}
4403
4404	if (template) {	/* copy/update from the template */
4405	for (masterLine = template->lines;	needs = NEED_KERNEL | NEED_TITLE;
4406	masterLine && (tmplLine = lineDup(masterLine));	if (newKernelInitrd)
4407	lineFree(tmplLine), masterLine = masterLine->next)	needs |= NEED_INITRD;
4408	{	if (newMBKernel) {
4409	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	needs |= NEED_MB;
4410		new->multiboot = 1;
4411	/* skip comments */	}
4412	chptr = tmplLine->indent;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4413	while (*chptr && isspace(*chptr)) chptr++;	needs |= NEED_DEVTREE;
4414	if (*chptr == '#') continue;
4415		if (template) {
4416	if (tmplLine->type == LT_KERNEL &&	for (masterLine = template->lines;
4417	tmplLine->numElements >= 2) {	masterLine && (tmplLine = lineDup(masterLine));
4418	if (!template->multiboot && (needs & NEED_MB)) {	lineFree(tmplLine), masterLine = masterLine->next) {
4419	/* it's not a multiboot template and this is the kernel	dbgPrintf("addNewKernel processing %d\n",
4420	* line.  Try to be intelligent about inserting the	tmplLine->type);
4421	* hypervisor at the same time.
4422	*/	/* skip comments */
4423	if (config->cfi->mbHyperFirst) {	chptr = tmplLine->indent;
4424	/* insert the hypervisor first */	while (*chptr && isspace(*chptr))
4425	newLine = addLine(new, config->cfi, LT_HYPER,	chptr++;
4426	tmplLine->indent,	if (*chptr == '#')
4427	newMBKernel + strlen(prefix));	continue;
4428	/* set up for adding the kernel line */
4429	free(tmplLine->indent);	if (iskernel(tmplLine->type)
4430	tmplLine->indent = strdup(config->secondaryIndent);	&& tmplLine->numElements >= 2) {
4431	needs &= ~NEED_MB;	if (!template->multiboot && (needs & NEED_MB)) {
4432	}	/* it's not a multiboot template and
4433	if (needs & NEED_KERNEL) {	* this is the kernel line.  Try to
4434	/* use addLineTmpl to preserve line elements,	* be intelligent about inserting the
4435	* otherwise we could just call addLine.  Unfortunately	* hypervisor at the same time.
4436	* this means making some changes to the template	*/
4437	* such as the indent change above and the type	if (config->cfi->mbHyperFirst) {
4438	* change below.	/* insert the hypervisor first */
4439	*/	newLine =
4440	struct keywordTypes * mbm_kw =	addLine(new, config->cfi,
4441	getKeywordByType(LT_MBMODULE, config->cfi);	LT_HYPER,
4442	if (mbm_kw) {	tmplLine->indent,
4443	tmplLine->type = LT_MBMODULE;	newMBKernel +
4444	free(tmplLine->elements[0].item);	strlen(prefix));
4445	tmplLine->elements[0].item = strdup(mbm_kw->key);	/* set up for adding the
4446	}	* kernel line */
4447	newLine = addLineTmpl(new, tmplLine, newLine,	free(tmplLine->indent);
4448	newKernelPath + strlen(prefix), config->cfi);	tmplLine->indent =
4449	needs &= ~NEED_KERNEL;	strdup(config->
4450	}	secondaryIndent);
4451	if (needs & NEED_MB) { /* !mbHyperFirst */	needs &= ~NEED_MB;
4452	newLine = addLine(new, config->cfi, LT_HYPER,	}
4453	config->secondaryIndent,	if (needs & NEED_KERNEL) {
4454	newMBKernel + strlen(prefix));	/* use addLineTmpl to
4455	needs &= ~NEED_MB;	* preserve line elements,
4456	}	* otherwise we could just
4457	} else if (needs & NEED_KERNEL) {	* call addLine.
4458	newLine = addLineTmpl(new, tmplLine, newLine,	* Unfortunately this means
4459	newKernelPath + strlen(prefix), config->cfi);	* making some changes to the
4460	needs &= ~NEED_KERNEL;	* template such as the
4461	}	* indent change above and
4462		* the type change below.
4463	} else if (tmplLine->type == LT_HYPER &&	*/
4464	tmplLine->numElements >= 2) {	struct keywordTypes *mbm_kw =
4465	if (needs & NEED_MB) {	getKeywordByType
4466	newLine = addLineTmpl(new, tmplLine, newLine,	(LT_MBMODULE, config->cfi);
4467	newMBKernel + strlen(prefix), config->cfi);	if (mbm_kw) {
4468	needs &= ~NEED_MB;	tmplLine->type =
4469	}	LT_MBMODULE;
4470		free(tmplLine->
4471	} else if (tmplLine->type == LT_MBMODULE &&	elements[0].item);
4472	tmplLine->numElements >= 2) {	tmplLine->elements[0].
4473	if (new->multiboot) {	item =
4474	if (needs & NEED_KERNEL) {	strdup(mbm_kw->key);
4475	newLine = addLineTmpl(new, tmplLine, newLine,	}
4476	newKernelPath +	newLine =
4477	strlen(prefix), config->cfi);	addLineTmpl(new, tmplLine,
4478	needs &= ~NEED_KERNEL;	newLine,
4479	} else if (config->cfi->mbInitRdIsModule &&	newKernelPath +
4480	(needs & NEED_INITRD)) {	strlen(prefix),
4481	char *initrdVal;	config->cfi);
4482	initrdVal = getInitrdVal(config, prefix, tmplLine,	needs &= ~NEED_KERNEL;
4483	newKernelInitrd, extraInitrds,	}
4484	extraInitrdCount);	if (needs & NEED_MB) { /* !mbHyperFirst */
4485	newLine = addLineTmpl(new, tmplLine, newLine,	newLine =
4486	initrdVal, config->cfi);	addLine(new, config->cfi,
4487	free(initrdVal);	LT_HYPER,
4488	needs &= ~NEED_INITRD;	config->
4489	}	secondaryIndent,
4490	} else if (needs & NEED_KERNEL) {	newMBKernel +
4491	/* template is multi but new is not,	strlen(prefix));
4492	* insert the kernel in the first module slot	needs &= ~NEED_MB;
4493	*/	}
4494	tmplLine->type = LT_KERNEL;	} else if (needs & NEED_KERNEL) {
4495	free(tmplLine->elements[0].item);	newLine =
4496	tmplLine->elements[0].item =	addLineTmpl(new, tmplLine, newLine,
4497	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);	newKernelPath +
4498	newLine = addLineTmpl(new, tmplLine, newLine,	strlen(prefix),
4499	newKernelPath + strlen(prefix), config->cfi);	config->cfi);
4500	needs &= ~NEED_KERNEL;	needs &= ~NEED_KERNEL;
4501	} 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);
	}
	}
4502
4503	} else {	} else if (tmplLine->type == LT_HYPER &&
4504	/* don't have a template, so start the entry with the	tmplLine->numElements >= 2) {
4505	* appropriate starting line	if (needs & NEED_MB) {
4506	*/	newLine =
4507	switch (config->cfi->entryStart) {	addLineTmpl(new, tmplLine, newLine,
4508	case LT_KERNEL:	newMBKernel +
4509	if (new->multiboot && config->cfi->mbHyperFirst) {	strlen(prefix),
4510	/* fall through to LT_HYPER */	config->cfi);
4511	} else {	needs &= ~NEED_MB;
4512	newLine = addLine(new, config->cfi, LT_KERNEL,	}
4513	config->primaryIndent,
4514	newKernelPath + strlen(prefix));	} else if (tmplLine->type == LT_MBMODULE &&
4515	needs &= ~NEED_KERNEL;	tmplLine->numElements >= 2) {
4516	break;	if (new->multiboot) {
4517		if (needs & NEED_KERNEL) {
4518		newLine =
4519		addLineTmpl(new, tmplLine,
4520		newLine,
4521		newKernelPath +
4522		strlen(prefix),
4523		config->cfi);
4524		needs &= ~NEED_KERNEL;
4525		} else if (config->cfi->mbInitRdIsModule
4526		&& (needs & NEED_INITRD)) {
4527		char *initrdVal;
4528		initrdVal =
4529		getInitrdVal(config, prefix,
4530		tmplLine,
4531		newKernelInitrd,
4532		extraInitrds,
4533		extraInitrdCount);
4534		newLine =
4535		addLineTmpl(new, tmplLine,
4536		newLine,
4537		initrdVal,
4538		config->cfi);
4539		free(initrdVal);
4540		needs &= ~NEED_INITRD;
4541		}
4542		} else if (needs & NEED_KERNEL) {
4543		/* template is multi but new is not,
4544		* insert the kernel in the first
4545		* module slot
4546		*/
4547		tmplLine->type =
4548		preferredLineType(LT_KERNEL,
4549		config->cfi);
4550		free(tmplLine->elements[0].item);
4551		tmplLine->elements[0].item =
4552		strdup(getKeywordByType
4553		(tmplLine->type,
4554		config->cfi)->key);
4555		newLine =
4556		addLineTmpl(new, tmplLine, newLine,
4557		newKernelPath +
4558		strlen(prefix),
4559		config->cfi);
4560		needs &= ~NEED_KERNEL;
4561		} else if (needs & NEED_INITRD) {
4562		char *initrdVal;
4563		/* template is multi but new is not,
4564		* insert the initrd in the second
4565		* module slot
4566		*/
4567		tmplLine->type =
4568		preferredLineType(LT_INITRD,
4569		config->cfi);
4570		free(tmplLine->elements[0].item);
4571		tmplLine->elements[0].item =
4572		strdup(getKeywordByType
4573		(tmplLine->type,
4574		config->cfi)->key);
4575		initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLineTmpl(new, tmplLine, newLine,
4583		initrdVal, config->cfi);
4584		free(initrdVal);
4585		needs &= ~NEED_INITRD;
4586		}
4587
4588		} else if (isinitrd(tmplLine->type)
4589		&& tmplLine->numElements >= 2) {
4590		if (needs & NEED_INITRD && new->multiboot
4591		&& !template->multiboot
4592		&& config->cfi->mbInitRdIsModule) {
4593		/* make sure we don't insert the
4594		* module initrd before the module
4595		* kernel... if we don't do it here,
4596		* it will be inserted following the
4597		* template.
4598		*/
4599		if (!needs & NEED_KERNEL) {
4600		char *initrdVal;
4601
4602		initrdVal =
4603		getInitrdVal(config, prefix,
4604		tmplLine,
4605		newKernelInitrd,
4606		extraInitrds,
4607		extraInitrdCount);
4608		newLine =
4609		addLine(new, config->cfi,
4610		LT_MBMODULE,
4611		config->
4612		secondaryIndent,
4613		initrdVal);
4614		free(initrdVal);
4615		needs &= ~NEED_INITRD;
4616		}
4617		} else if (needs & NEED_INITRD) {
4618		char *initrdVal;
4619		initrdVal =
4620		getInitrdVal(config, prefix,
4621		tmplLine,
4622		newKernelInitrd,
4623		extraInitrds,
4624		extraInitrdCount);
4625		newLine =
4626		addLineTmpl(new, tmplLine, newLine,
4627		initrdVal, config->cfi);
4628		free(initrdVal);
4629		needs &= ~NEED_INITRD;
4630		}
4631
4632		} else if (tmplLine->type == LT_MENUENTRY &&
4633		(needs & NEED_TITLE)) {
4634		requote(tmplLine, config->cfi);
4635		char *nkt = malloc(strlen(newKernelTitle) + 3);
4636		strcpy(nkt, "'");
4637		strcat(nkt, newKernelTitle);
4638		strcat(nkt, "'");
4639		newLine =
4640		addLineTmpl(new, tmplLine, newLine, nkt,
4641		config->cfi);
4642		free(nkt);
4643		needs &= ~NEED_TITLE;
4644		} else if (tmplLine->type == LT_TITLE &&
4645		(needs & NEED_TITLE)) {
4646		if (tmplLine->numElements >= 2) {
4647		newLine =
4648		addLineTmpl(new, tmplLine, newLine,
4649		newKernelTitle,
4650		config->cfi);
4651		needs &= ~NEED_TITLE;
4652		} else if (tmplLine->numElements == 1 &&
4653		config->cfi->titleBracketed) {
4654		/* addLineTmpl doesn't handle
4655		* titleBracketed */
4656		newLine =
4657		addLine(new, config->cfi, LT_TITLE,
4658		tmplLine->indent,
4659		newKernelTitle);
4660		needs &= ~NEED_TITLE;
4661		}
4662		} else if (tmplLine->type == LT_ECHO) {
4663		requote(tmplLine, config->cfi);
4664		static const char *prefix = "'Loading ";
4665		if (tmplLine->numElements > 1 &&
4666		strstr(tmplLine->elements[1].item, prefix)
4667		&& masterLine->next
4668		&& iskernel(masterLine->next->type)) {
4669		char *newTitle =
4670		malloc(strlen(prefix) +
4671		strlen(newKernelTitle) + 2);
4672
4673		strcpy(newTitle, prefix);
4674		strcat(newTitle, newKernelTitle);
4675		strcat(newTitle, "'");
4676		newLine =
4677		addLine(new, config->cfi, LT_ECHO,
4678		tmplLine->indent, newTitle);
4679		free(newTitle);
4680		} else {
4681		/* pass through other lines from the
4682		* template */
4683		newLine =
4684		addLineTmpl(new, tmplLine, newLine,
4685		NULL, config->cfi);
4686		}
4687		} else if (tmplLine->type == LT_DEVTREE &&
4688		tmplLine->numElements == 2
4689		&& newDevTreePath) {
4690		newLine =
4691		addLineTmpl(new, tmplLine, newLine,
4692		newDevTreePath + strlen(prefix),
4693		config->cfi);
4694		needs &= ~NEED_DEVTREE;
4695		} else if (tmplLine->type == LT_ENTRY_END
4696		&& needs & NEED_DEVTREE) {
4697		const char *ndtp = newDevTreePath;
4698		if (!strncmp
4699		(newDevTreePath, prefix, strlen(prefix)))
4700		ndtp += strlen(prefix);
4701		newLine = addLine(new, config->cfi, LT_DEVTREE,
4702		config->secondaryIndent,
4703		ndtp);
4704		needs &= ~NEED_DEVTREE;
4705		newLine =
4706		addLineTmpl(new, tmplLine, newLine, NULL,
4707		config->cfi);
4708		} else {
4709		/* pass through other lines from the template */
4710		newLine =
4711		addLineTmpl(new, tmplLine, newLine, NULL,
4712		config->cfi);
4713		}
4714	}	}
4715
4716	case LT_HYPER:	} else {
4717	newLine = addLine(new, config->cfi, LT_HYPER,	/* don't have a template, so start the entry with the
4718	config->primaryIndent,	* appropriate starting line
4719	newMBKernel + strlen(prefix));	*/
4720	needs &= ~NEED_MB;	switch (config->cfi->entryStart) {
4721	break;	case LT_KERNEL:
4722		case LT_KERNEL_EFI:
4723		case LT_KERNEL_16:
4724		if (new->multiboot && config->cfi->mbHyperFirst) {
4725		/* fall through to LT_HYPER */
4726		} else {
4727		newLine = addLine(new, config->cfi,
4728		preferredLineType(LT_KERNEL,
4729		config->
4730		cfi),
4731		config->primaryIndent,
4732		newKernelPath +
4733		strlen(prefix));
4734		needs &= ~NEED_KERNEL;
4735		break;
4736		}
4737
4738	case LT_MENUENTRY: {	case LT_HYPER:
4739	char *nkt = malloc(strlen(newKernelTitle)+3);	newLine = addLine(new, config->cfi, LT_HYPER,
4740	strcpy(nkt, "'");	config->primaryIndent,
4741	strcat(nkt, newKernelTitle);	newMBKernel + strlen(prefix));
4742	strcat(nkt, "'");	needs &= ~NEED_MB;
4743	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
4744	config->primaryIndent, nkt);
4745	free(nkt);	case LT_MENUENTRY:{
4746	needs &= ~NEED_TITLE;	char *nkt = malloc(strlen(newKernelTitle) + 3);
4747	needs |= NEED_END;	strcpy(nkt, "'");
4748	break;	strcat(nkt, newKernelTitle);
4749	}	strcat(nkt, "'");
4750	case LT_TITLE:	newLine =
4751	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	addLine(new, config->cfi, LT_MENUENTRY,
4752	char * templabel;	config->primaryIndent, nkt);
4753	int x = 0, y = 0;	free(nkt);
4754		needs &= ~NEED_TITLE;
4755	templabel = strdup(newKernelTitle);	needs |= NEED_END;
4756	while( templabel[x]){	break;
4757	if( templabel[x] == ' ' ){	}
4758	y = x;	case LT_TITLE:
4759	while( templabel[y] ){	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4760	templabel[y] = templabel[y+1];	char *templabel;
4761	y++;	int x = 0, y = 0;
4762
4763		templabel = strdup(newKernelTitle);
4764		while (templabel[x]) {
4765		if (templabel[x] == ' ') {
4766		y = x;
4767		while (templabel[y]) {
4768		templabel[y] =
4769		templabel[y + 1];
4770		y++;
4771		}
4772	}	}
4773		x++;
4774	}	}
4775	x++;	newLine = addLine(new, config->cfi, LT_TITLE,
4776		config->primaryIndent,
4777		templabel);
4778		free(templabel);
4779		} else {
4780		newLine = addLine(new, config->cfi, LT_TITLE,
4781		config->primaryIndent,
4782		newKernelTitle);
4783	}	}
4784	newLine = addLine(new, config->cfi, LT_TITLE,	needs &= ~NEED_TITLE;
4785	config->primaryIndent, templabel);	break;
4786	free(templabel);
4787	}else{	default:
4788	newLine = addLine(new, config->cfi, LT_TITLE,	abort();
	config->primaryIndent, newKernelTitle);
4789	}	}
4790	needs &= ~NEED_TITLE;	}
	break;
4791
4792	default:	struct singleLine *endLine = NULL;
4793	abort();	endLine = getLineByType(LT_ENTRY_END, new->lines);
4794		if (endLine) {
4795		removeLine(new, endLine);
4796		needs |= NEED_END;
4797	}	}
	}
4798
4799	/* add the remainder of the lines, i.e. those that either	/* add the remainder of the lines, i.e. those that either
4800	* 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,
4801	* all the lines following the entryStart.	* all the lines following the entryStart.
4802	*/	*/
4803	if (needs & NEED_TITLE) {	if (needs & NEED_TITLE) {
4804	newLine = addLine(new, config->cfi, LT_TITLE,	newLine = addLine(new, config->cfi, LT_TITLE,
4805	config->secondaryIndent,	config->secondaryIndent, newKernelTitle);
4806	newKernelTitle);	needs &= ~NEED_TITLE;
4807	needs &= ~NEED_TITLE;	}
4808	}	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4809	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {	newLine = addLine(new, config->cfi, LT_HYPER,
4810	newLine = addLine(new, config->cfi, LT_HYPER,	config->secondaryIndent,
4811	config->secondaryIndent,	newMBKernel + strlen(prefix));
4812	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4813	needs &= ~NEED_MB;	}
4814	}	if (needs & NEED_KERNEL) {
4815	if (needs & NEED_KERNEL) {	newLine = addLine(new, config->cfi,
4816	newLine = addLine(new, config->cfi,	(new->multiboot
4817	(new->multiboot && getKeywordByType(LT_MBMODULE,	&& getKeywordByType(LT_MBMODULE,
4818	config->cfi)) ?	config->cfi))
4819	LT_MBMODULE : LT_KERNEL,	? LT_MBMODULE : preferredLineType(LT_KERNEL,
4820	config->secondaryIndent,	config->
4821	newKernelPath + strlen(prefix));	cfi),
4822	needs &= ~NEED_KERNEL;	config->secondaryIndent,
4823	}	newKernelPath + strlen(prefix));
4824	if (needs & NEED_MB) {	needs &= ~NEED_KERNEL;
4825	newLine = addLine(new, config->cfi, LT_HYPER,	}
4826	config->secondaryIndent,	if (needs & NEED_MB) {
4827	newMBKernel + strlen(prefix));	newLine = addLine(new, config->cfi, LT_HYPER,
4828	needs &= ~NEED_MB;	config->secondaryIndent,
4829	}	newMBKernel + strlen(prefix));
4830	if (needs & NEED_INITRD) {	needs &= ~NEED_MB;
4831	char *initrdVal;	}
4832	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);	if (needs & NEED_INITRD) {
4833	newLine = addLine(new, config->cfi,	char *initrdVal;
4834	(new->multiboot && getKeywordByType(LT_MBMODULE,	initrdVal =
4835	config->cfi)) ?	getInitrdVal(config, prefix, NULL, newKernelInitrd,
4836	LT_MBMODULE : LT_INITRD,	extraInitrds, extraInitrdCount);
4837	config->secondaryIndent,	newLine =
4838	initrdVal);	addLine(new, config->cfi,
4839	free(initrdVal);	(new->multiboot
4840	needs &= ~NEED_INITRD;	&& getKeywordByType(LT_MBMODULE, config->cfi))
4841	}	? LT_MBMODULE : preferredLineType(LT_INITRD,
4842	if (needs & NEED_END) {	config->cfi),
4843	newLine = addLine(new, config->cfi, LT_ENTRY_END,	config->secondaryIndent, initrdVal);
4844	config->secondaryIndent, NULL);	free(initrdVal);
4845	needs &= ~NEED_END;	needs &= ~NEED_INITRD;
4846	}	}
4847		if (needs & NEED_DEVTREE) {
4848		newLine = addLine(new, config->cfi, LT_DEVTREE,
4849		config->secondaryIndent, newDevTreePath);
4850		needs &= ~NEED_DEVTREE;
4851		}
4852
4853		/* NEEDS_END must be last on bootloaders that need it... */
4854		if (needs & NEED_END) {
4855		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4856		config->secondaryIndent, NULL);
4857		needs &= ~NEED_END;
4858		}
4859
4860	if (needs) {	if (needs) {
4861	printf(_("grubby: needs=%d, aborting\n"), needs);	printf(_("grubby: needs=%d, aborting\n"), needs);
4862	abort();	abort();
4863	}	}
4864
4865	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4866	newMBKernelArgs, NULL)) return 1;	newMBKernelArgs, NULL)) {
4867		config->isModified = 1;
4868		return 1;
4869		}
4870
4871	return 0;	return 0;
4872	}	}
4873
4874	static void traceback(int signum)	int main(int argc, const char **argv)
4875	{	{
4876	void *array[40];	poptContext optCon;
4877	size_t size;	const char *grubConfig = NULL;
4878		char *outputFile = NULL;
4879	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4880	memset(array, '\0', sizeof (array));	int flags = 0;
4881	size = backtrace(array, 40);	int badImageOkay = 0;
4882		int configureGrub2 = 0;
4883	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4884	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4885	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4886	exit(1);	int bootloaderProbe = 0;
4887	}	int extraInitrdCount = 0;
4888		char *updateKernelPath = NULL;
4889	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4890	poptContext optCon;	char *removeKernelPath = NULL;
4891	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4892	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4893	int arg = 0;	char *newKernelTitle = NULL;
4894	int flags = 0;	char *newDevTreePath = NULL;
4895	int badImageOkay = 0;	char *newMBKernel = NULL;
4896	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4897	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4898	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4899	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4900	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4901	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4902	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4903	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4904	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4905	char * newKernelArgs = NULL;	char *envPath = NULL;
4906	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4907	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4908	char * newKernelVersion = NULL;	struct grubConfig *config;
4909	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4910	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4911	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4912	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4913	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4914	char * defaultKernel = NULL;	int defaultIndex = -1;
4915	char * removeArgs = NULL;	struct poptOption options[] = {
4916	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4917	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4918	const char * chptr = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4919	struct configFileInfo * cfi = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4920	struct grubConfig * config;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4921	struct singleEntry * template = NULL;	_("default arguments for the new kernel or new arguments for "
4922	int copyDefault = 0, makeDefault = 0;	"kernel being updated"), _("args")},
4923	int displayDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4924	int displayDefaultIndex = 0;	_("default arguments for the new multiboot kernel or "
4925	int displayDefaultTitle = 0;	"new arguments for multiboot kernel being updated"), NULL},
4926	struct poptOption options[] = {	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4927	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	_
4928	_("add an entry for the specified kernel"), _("kernel-path") },	("don't sanity check images in boot entries (for testing only)"),
4929	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	NULL},
4930	_("add an entry for the specified multiboot kernel"), NULL },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4931	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	_
4932	_("default arguments for the new kernel or new arguments for "	("filesystem which contains /boot directory (for testing only)"),
4933	"kernel being updated"), _("args") },	_("bootfs")},
	{ "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") },
4934	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4935	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4936	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4937	#endif	#endif
4938	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4939	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4940	_("path") },	_("path")},
4941	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4942	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4943	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4944	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4945	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4946	"template"), NULL },	"template"), NULL},
4947	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4948	_("print debugging information for failures") },	_("print debugging information for failures")},
4949	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4950	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4951	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4952	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4953	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4954	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4955	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4956	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4957	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4958	_("configure extlinux bootloader (from syslinux)") },	_("device tree directory for new stanza"), _("dtb-path")},
4959	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4960	_("configure grub bootloader") },	_("configure elilo bootloader")},
4961	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4962	_("configure grub2 bootloader") },	_("force grub2 stanzas to use efi")},
4963	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4964	_("display boot information for specified kernel"),	_("path for environment data"),
4965	_("kernel-path") },	_("path")},
4966	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4967	_("initrd image for the new kernel"), _("initrd-path") },	_("configure extlinux bootloader (from syslinux)")},
4968	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4969	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	_("configure grub bootloader")},
4970	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4971	_("configure lilo bootloader") },	_("configure grub2 bootloader")},
4972	{ "make-default", 0, 0, &makeDefault, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4973	_("make the newly added entry the default boot entry"), NULL },	_("display boot information for specified kernel"),
4974	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("kernel-path")},
4975	_("path to output updated config file (\"-\" for stdout)"),	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4976	_("path") },	_("initrd image for the new kernel"), _("initrd-path")},
4977	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4978	_("remove kernel arguments"), NULL },	_
4979	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	("auxiliary initrd image for things other than the new kernel"),
4980	_("remove multiboot kernel arguments"), NULL },	_("initrd-path")},
4981	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4982	_("remove all entries for the specified kernel"),	_("configure lilo bootloader")},
4983	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4984	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("make the newly added entry the default boot entry"), NULL},
4985	_("remove all entries for the specified multiboot kernel"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4986	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("path to output updated config file (\"-\" for stdout)"),
4987	_("make the first entry referencing the specified kernel "	_("path")},
4988	"the default"), _("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4989	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	_("remove kernel arguments"), NULL},
4990	_("configure silo bootloader") },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4991	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("remove multiboot kernel arguments"), NULL},
4992	_("title to use for the new kernel entry"), _("entry-title") },	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4993	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	_("remove all entries for the specified kernel"),
4994	_("updated information for the specified kernel"),	_("kernel-path")},
4995	_("kernel-path") },	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4996	{ "version", 'v', 0, NULL, 'v',	_("remove all entries for the specified multiboot kernel"),
4997	_("print the version of this program and exit"), NULL },	NULL},
4998	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4999	_("configure yaboot bootloader") },	_("make the first entry referencing the specified kernel "
5000	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	"the default"), _("kernel-path")},
5001	_("configure zipl bootloader") },	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5002	POPT_AUTOHELP	_("make the given entry index the default entry"),
5003	{ 0, 0, 0, 0, 0 }	_("entry-index")},
5004	};	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5005		_("use the given index when creating a new entry"),
5006	useextlinuxmenu=0;	_("entry-index")},
5007		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5008	signal(SIGSEGV, traceback);	_("configure silo bootloader")},
5009		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5010	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("title to use for the new kernel entry"), _("entry-title")},
5011	poptReadDefaultConfig(optCon, 1);	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5012		_("updated information for the specified kernel"),
5013	while ((arg = poptGetNextOpt(optCon)) >= 0) {	_("kernel-path")},
5014	switch (arg) {	{"version", 'v', 0, NULL, 'v',
5015	case 'v':	_("print the version of this program and exit"), NULL},
5016	printf("grubby version %s\n", VERSION);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5017	exit(0);	_("configure yaboot bootloader")},
5018	break;	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5019	case 'i':	_("configure zipl bootloader")},
5020	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	POPT_AUTOHELP {0, 0, 0, 0, 0}
5021	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	};
5022	} else {
5023	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	useextlinuxmenu = 0;
5024	return 1;
5025	}	int i = 0;
5026	break;	for (int j = 1; j < argc; j++)
5027		i += strlen(argv[j]) + 1;
5028		saved_command_line = malloc(i);
5029		if (!saved_command_line) {
5030		fprintf(stderr, "grubby: %m\n");
5031		exit(1);
5032		}
5033		saved_command_line[0] = '\0';
5034		for (int j = 1; j < argc; j++) {
5035		strcat(saved_command_line, argv[j]);
5036		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5037		}
5038
5039		optCon = poptGetContext("grubby", argc, argv, options, 0);
5040		poptReadDefaultConfig(optCon, 1);
5041
5042		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5043		switch (arg) {
5044		case 'v':
5045		printf("grubby version %s\n", VERSION);
5046		exit(0);
5047		break;
5048		case 'i':
5049		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5050		extraInitrds[extraInitrdCount++] =
5051		strdup(poptGetOptArg(optCon));
5052		} else {
5053		fprintf(stderr,
5054		_
5055		("grubby: extra initrd maximum is %d\n"),
5056		extraInitrdCount);
5057		return 1;
5058		}
5059		break;
5060		}
5061	}	}
	}
5062
5063	if (arg < -1) {	if (arg < -1) {
5064	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5065	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5066	poptStrerror(arg));	poptStrerror(arg));
5067	return 1;	return 1;
5068	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5069
5070	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5071	configureYaboot + configureSilo + configureZipl +	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5072	configureExtLinux ) > 1) {	return 1;
5073	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;
	}
5074
5075	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5076	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5077	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5078	else	fprintf(stderr,
5079	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5080	cfi = &eliloConfigType;	return 1;
5081	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5082	cfi = &yabootConfigType;	fprintf(stderr,
5083	#elif __sparc__	_
5084	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5085	#elif __s390__	return 1;
5086	cfi = &ziplConfigType;	} else if (configureGrub2) {
5087	#elif __s390x__	cfi = &grub2ConfigType;
5088	cfi = &ziplConfigtype;	if (envPath)
5089	#else	cfi->envFile = envPath;
5090	cfi = &grubConfigType;	} else if (configureLilo) {
5091	#endif	cfi = &liloConfigType;
5092	}	} else if (configureGrub) {
5093		cfi = &grubConfigType;
5094		} else if (configureELilo) {
5095		cfi = &eliloConfigType;
5096		} else if (configureYaboot) {
5097		cfi = &yabootConfigType;
5098		} else if (configureSilo) {
5099		cfi = &siloConfigType;
5100		} else if (configureZipl) {
5101		cfi = &ziplConfigType;
5102		} else if (configureExtLinux) {
5103		cfi = &extlinuxConfigType;
5104		useextlinuxmenu = 1;
5105		}
5106
5107		if (!cfi) {
5108		if (grub2FindConfig(&grub2ConfigType)) {
5109		cfi = &grub2ConfigType;
5110		if (envPath)
5111		cfi->envFile = envPath;
5112		} else
5113		#ifdef __ia64__
5114		cfi = &eliloConfigType;
5115		#elif __powerpc__
5116		cfi = &yabootConfigType;
5117		#elif __sparc__
5118		cfi = &siloConfigType;
5119		#elif __s390__
5120		cfi = &ziplConfigType;
5121		#elif __s390x__
5122		cfi = &ziplConfigtype;
5123		#else
5124		cfi = &grubConfigType;
5125		#endif
5126		}
5127
5128	if (!grubConfig) {	if (!grubConfig) {
5129	if (cfi->findConfig)	if (cfi->findConfig)
5130	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5131	if (!grubConfig)	if (!grubConfig)
5132	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5133	}	}
5134
5135	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5136	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5137	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	|| defaultKernel || displayDefaultIndex
5138	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5139		|| (defaultIndex >= 0))) {
5140		fprintf(stderr,
5141		_("grubby: --bootloader-probe may not be used with "
5142	"specified option"));	"specified option"));
5143	return 1;	return 1;
5144	}	}
5145
5146	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5147	removeKernelPath)) {	removeKernelPath)) {
5148	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5149	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5150	return 1;	return 1;
5151	}	}
5152
5153	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5154	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5155	return 1;	return 1;
5156	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5157	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5158	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5159	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5160	return 1;	return 1;
5161	}	}
5162
5163	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5164	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5165	"not be used together"));	"not be used together"));
5166	return 1;	return 1;
5167	}	}
5168
5169	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5170	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5171		"may not be used together\n"));
5172		return 1;
5173		} else if (defaultKernel && removeKernelPath &&
5174		!strcmp(defaultKernel, removeKernelPath)) {
5175		fprintf(stderr,
5176		_("grubby: cannot make removed kernel the default\n"));
5177		return 1;
5178		} else if (defaultKernel && newKernelPath &&
5179		!strcmp(defaultKernel, newKernelPath)) {
5180		makeDefault = 1;
5181		defaultKernel = NULL;
5182		} else if (defaultKernel && (defaultIndex >= 0)) {
5183		fprintf(stderr,
5184		_("grubby: --set-default and --set-default-index "
5185	"may not be used together\n"));	"may not be used together\n"));
5186	return 1;	return 1;
5187	} else if (defaultKernel && removeKernelPath &&	}
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
5188
5189	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5190	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5191	"is used\n"));	_("grubby: output file must be specified if stdin "
5192	return 1;	"is used\n"));
5193	}	return 1;
5194		}
5195
5196	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5197	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5198	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5199	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5200	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5201	}	return 1;
5202		}
5203
5204	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5205
5206	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5207	if (!bootPrefix) {	if (!bootPrefix) {
5208	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5209	if (!bootPrefix) return 1;	if (!bootPrefix)
5210		return 1;
5211		} else {
5212		/* this shouldn't end with a / */
5213		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5214		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5215		}
5216	} else {	} else {
5217	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5218	}	}
	} else {
	bootPrefix = "";
	}
5219
5220	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5221	extraInitrdCount > 0) {	fprintf(stderr,
5222	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5223	return 1;	cfi->defaultConfig);
5224	}	return 1;
5225		}
5226
5227	if (bootloaderProbe) {	if (bootloaderProbe) {
5228	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;
5229	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5230
5231	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5232	if (grub2config) {	if (grub2config) {
5233	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5234	if (!gconfig)	if (!gconfig)
5235	gr2c = 1;	gr2c = 1;
5236	else	else
5237	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5238	}	}
	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(lconfig);
	}
	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");
5239
5240	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5241	}	if (!access(grubconfig, F_OK)) {
5242		gconfig = readConfig(grubconfig, &grubConfigType);
5243		if (!gconfig)
5244		grc = 1;
5245		else
5246		grc = checkForGrub(gconfig);
5247		}
5248
5249	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5250	if (!config) return 1;	lconfig =
5251		readConfig(liloConfigType.defaultConfig,
5252		&liloConfigType);
5253		if (!lconfig)
5254		lrc = 1;
5255		else
5256		lrc = checkForLilo(lconfig);
5257		}
5258
5259	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5260	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5261	struct singleEntry * entry;	&eliloConfigType);
5262	char * rootspec;	if (!econfig)
5263		erc = 1;
5264	if (config->defaultImage == -1) return 0;	else
5265	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5266	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));
5267
5268	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5269		lconfig =
5270		readConfig(extlinuxConfigType.defaultConfig,
5271		&extlinuxConfigType);
5272		if (!lconfig)
5273		extrc = 1;
5274		else
5275		extrc = checkForExtLinux(lconfig);
5276		}
5277
5278	} else if (displayDefaultTitle) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5279	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5280	struct singleEntry * entry;	&yabootConfigType);
5281		if (!yconfig)
5282	if (config->defaultImage == -1) return 0;	yrc = 1;
5283	entry = findEntryByIndex(config, config->defaultImage);	else
5284	if (!entry) return 0;	yrc = checkForYaboot(yconfig);
5285		}
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
5286
5287	} else {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5288	char * title;	|| erc == 1)
5289		return 1;
5290
5291		if (lrc == 2)
5292		printf("lilo\n");
5293		if (gr2c == 2)
5294		printf("grub2\n");
5295		if (grc == 2)
5296		printf("grub\n");
5297		if (extrc == 2)
5298		printf("extlinux\n");
5299		if (yrc == 2)
5300		printf("yaboot\n");
5301		if (erc == 2)
5302		printf("elilo\n");
5303
5304	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);
5305	}	}
	return 0;
5306
5307	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5308	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5309	printf("%i\n", config->defaultImage);	exit(1);
5310		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5311
5312	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5313	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5314	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5315	bootPrefix, flags);
5316	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5317	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5318	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5319	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5320	if (updateInitrd(config, updateKernelPath, bootPrefix,
5321	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5322	}	return 0;
5323	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5324	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5325	(const char **)extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5326	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5327		if (!entry)
5328		return 0;
5329	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5330	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5331	"Not writing out new config.\n"));
5332	return 1;	line =
5333	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5334		LT_KERNEL_16, entry->lines);
5335		if (!line)
5336		return 0;
5337
5338		rootspec = getRootSpecifier(line->elements[1].item);
5339		printf("%s%s\n", bootPrefix, line->elements[1].item +
5340		((rootspec != NULL) ? strlen(rootspec) : 0));
5341
5342		return 0;
5343
5344		} else if (displayDefaultTitle) {
5345		struct singleLine *line;
5346		struct singleEntry *entry;
5347
5348		if (config->defaultImage == NO_DEFAULT_ENTRY)
5349		return 0;
5350		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5351		cfi->defaultIsSaved)
5352		config->defaultImage = FIRST_ENTRY_INDEX;
5353		entry = findEntryByIndex(config, config->defaultImage);
5354		if (!entry)
5355		return 0;
5356
5357		if (!configureGrub2) {
5358		char *title;
5359		line = getLineByType(LT_TITLE, entry->lines);
5360		if (!line)
5361		return 0;
5362		title = extractTitle(config, line);
5363		if (!title)
5364		return 0;
5365		printf("%s\n", title);
5366		free(title);
5367		} else {
5368		char *title;
5369
5370		dbgPrintf
5371		("This is GRUB2, default title is embeded in menuentry\n");
5372		line = getLineByType(LT_MENUENTRY, entry->lines);
5373		if (!line)
5374		return 0;
5375		title = grub2ExtractTitle(line);
5376		if (title)
5377		printf("%s\n", title);
5378		}
5379		return 0;
5380
5381		} else if (displayDefaultIndex) {
5382		if (config->defaultImage == NO_DEFAULT_ENTRY)
5383		return 0;
5384		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5385		cfi->defaultIsSaved)
5386		config->defaultImage = FIRST_ENTRY_INDEX;
5387		printf("%i\n", config->defaultImage);
5388		return 0;
5389
5390		} else if (kernelInfo)
5391		return displayInfo(config, kernelInfo, bootPrefix);
5392
5393		if (copyDefault) {
5394		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5395		if (!template)
5396		return 1;
5397		}
5398
5399		markRemovedImage(config, removeKernelPath, bootPrefix);
5400		markRemovedImage(config, removeMBKernel, bootPrefix);
5401		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5402		makeDefault, bootPrefix, flags, defaultIndex,
5403		newIndex);
5404		setFallbackImage(config, newKernelPath != NULL);
5405		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5406		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5407		return 1;
5408		if (updateKernelPath && newKernelInitrd) {
5409		if (newMBKernel) {
5410		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5411		bootPrefix, newKernelInitrd,
5412		newKernelTitle))
5413		return 1;
5414		} else {
5415		if (updateInitrd(config, updateKernelPath, bootPrefix,
5416		newKernelInitrd, newKernelTitle))
5417		return 1;
5418		}
5419		}
5420		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5421		newKernelTitle, newKernelArgs, newKernelInitrd,
5422		(const char **)extraInitrds, extraInitrdCount,
5423		newMBKernel, newMBKernelArgs, newDevTreePath,
5424		newIndex))
5425		return 1;
5426
5427		if (numEntries(config) == 0) {
5428		fprintf(stderr,
5429		_("grubby: doing this would leave no kernel entries. "
5430		"Not writing out new config.\n"));
5431		return 1;
5432		}
5433
5434	if (!outputFile)	if (!outputFile)
5435	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5436
5437	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5438	}	}

---

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Legend: Removed from v.1854   changed lines   Added in v.3135