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

Parent Directory | Revision Log | Patch

	revision 1747 by niro, Sat Feb 18 01:06:48 2012 UTC	revision 3003 by niro, Tue Jun 27 14:14:00 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
136		#define DEFAULT_SAVED_GRUB2 -3
137
138	struct keywordTypes {	struct keywordTypes {
139	char * key;	char *key;
140	enum lineType_e type;	enum lineType_e type;
141	char nextChar;	char nextChar;
142	char separatorChar;	char separatorChar;
143	};	};
144
145	struct configFileInfo;	struct configFileInfo;
146
147	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
148	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
149	struct singleLine *line);	struct singleLine * line);
150		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
151		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
152
153	struct configFileInfo {	struct configFileInfo {
154	char * defaultConfig;	char *defaultConfig;
155	findConfigFunc findConfig;	findConfigFunc findConfig;
156	writeLineFunc writeLine;	writeLineFunc writeLine;
157	struct keywordTypes * keywords;	getEnvFunc getEnv;
158	int defaultIsIndex;	setEnvFunc setEnv;
159	int defaultIsVariable;	struct keywordTypes *keywords;
160	int defaultSupportSaved;	int caseInsensitive;
161	enum lineType_e entryStart;	int defaultIsIndex;
162	enum lineType_e entryEnd;	int defaultIsVariable;
163	int needsBootPrefix;	int defaultSupportSaved;
164	int argsInQuotes;	int defaultIsSaved;
165	int maxTitleLength;	int defaultIsUnquoted;
166	int titleBracketed;	enum lineType_e entryStart;
167	int titlePosition;	enum lineType_e entryEnd;
168	int mbHyperFirst;	int needsBootPrefix;
169	int mbInitRdIsModule;	int argsInQuotes;
170	int mbConcatArgs;	int maxTitleLength;
171	int mbAllowExtraInitRds;	int titleBracketed;
172		int titlePosition;
173		int mbHyperFirst;
174		int mbInitRdIsModule;
175		int mbConcatArgs;
176		int mbAllowExtraInitRds;
177		char *envFile;
178	};	};
179
180	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
181	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
182	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
183	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
184	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
185	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
186	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
187	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
188	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
189	{ NULL,    0, 0 },	{NULL, 0, 0},
190	};	};
191
192	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
193	static const char *configFiles[] = {	{
194	"/etc/grub.conf",	static const char *configFiles[] = {
195	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
196	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
197	NULL	"/etc/grub.conf",
198	};	NULL
199	static int i = -1;	};
200		static int i = -1;
201	if (i == -1) {
202	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
203	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
204	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
205	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
206	return configFiles[i];	dbgPrintf("found\n");
207	}	return configFiles[i];
208	dbgPrintf("not found\n");	}
209		dbgPrintf("not found\n");
210		}
211	}	}
212	}	return configFiles[i];
	return configFiles[i];
213	}	}
214
215	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
216	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
217	.keywords = grubKeywords,	.keywords = grubKeywords,
218	.defaultIsIndex = 1,	.defaultIsIndex = 1,
219	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
220	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
221	.needsBootPrefix = 1,	.needsBootPrefix = 1,
222	.mbHyperFirst = 1,	.mbHyperFirst = 1,
223	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
224	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
225		.titlePosition = 1,
226	};	};
227
228	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
229	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
230	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
231	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
232	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
233	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
234	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
235	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
236	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
237	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
238	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
239	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
240	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
241	};	{"initrd16", LT_INITRD_16, ' ', ' '},
242		{"module", LT_MBMODULE, ' '},
243	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
244	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
245	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
246	"/boot/grub/grub.cfg",	};
247	NULL
248	};	const char *grub2FindConfig(struct configFileInfo *cfi)
249	static int i = -1;	{
250	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
251		"/boot/grub/grub-efi.cfg",
252	if (i == -1) {	"/boot/grub/grub.cfg",
253	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
254	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
255	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
256		"/boot/grub2-efi/grub.cfg",
257		NULL
258		};
259		static int i = -1;
260		static const char *grub_cfg = "/boot/grub/grub.cfg";
261		int rc = -1;
262
263		if (i == -1) {
264		for (i = 0; configFiles[i] != NULL; i++) {
265		dbgPrintf("Checking \"%s\": ", configFiles[i]);
266		if ((rc = access(configFiles[i], R_OK))) {
267		if (errno == EACCES) {
268		printf
269		("Unable to access bootloader configuration file "
270		"\"%s\": %m\n", configFiles[i]);
271		exit(1);
272		}
273		continue;
274		} else {
275		dbgPrintf("found\n");
276		return configFiles[i];
277		}
278		}
279		}
280
281		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
282		* that isn't in grub1, and if it exists, return the config file path
283		* that they use. */
284		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
285	dbgPrintf("found\n");	dbgPrintf("found\n");
286	return configFiles[i];	return grub_cfg;
	}
287	}	}
	}
288
289	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
290	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
291	* that they use. */	}
	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
	dbgPrintf("found\n");
	return grub_cfg;
	}
292
293	dbgPrintf("not found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
294	return configFiles[i];	static char *grub2GetEnv(struct configFileInfo *info, char *name)
295		{
296		static char buf[1025];
297		char *s = NULL;
298		char *ret = NULL;
299		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
300		int rc =
301		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
302
303		if (rc < 0)
304		return NULL;
305
306		FILE *f = popen(s, "r");
307		if (!f)
308		goto out;
309
310		memset(buf, '\0', sizeof(buf));
311		ret = fgets(buf, 1024, f);
312		pclose(f);
313
314		if (ret) {
315		ret += strlen(name) + 1;
316		ret[strlen(ret) - 1] = '\0';
317		}
318		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
319		out:
320		free(s);
321		return ret;
322		}
323
324		static int sPopCount(const char *s, const char *c)
325		{
326		int ret = 0;
327		if (!s)
328		return -1;
329		for (int i = 0; s[i] != '\0'; i++)
330		for (int j = 0; c[j] != '\0'; j++)
331		if (s[i] == c[j])
332		ret++;
333		return ret;
334	}	}
335
336	int sizeOfSingleLine(struct singleLine * line) {	static char *shellEscape(const char *s)
337	int i;	{
338	int count = 0;	int l = strlen(s) + sPopCount(s, "'") * 2;
339
340	for (i = 0; i < line->numElements; i++) {	char *ret = calloc(l + 1, sizeof(*ret));
341	int indentSize = 0;	if (!ret)
342		return NULL;
343		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
344		if (s[i] == '\'')
345		ret[j++] = '\\';
346		ret[j] = s[i];
347		}
348		return ret;
349		}
350
351	count = count + strlen(line->elements[i].item);	static void unquote(char *s)
352		{
353		int l = strlen(s);
354
355	indentSize = strlen(line->elements[i].indent);	if ((s[l - 1] == '\'' && s[0] == '\'')
356	if (indentSize > 0)	|| (s[l - 1] == '"' && s[0] == '"')) {
357	count = count + indentSize;	memmove(s, s + 1, l - 2);
358	else	s[l - 2] = '\0';
359	/* be extra safe and add room for whitespaces */	}
360	count = count + 1;	}
	}
361
362	/* room for trailing terminator */	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
363	count = count + 1;	{
364		char *s = NULL;
365		int rc = 0;
366		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
367
368		unquote(value);
369		value = shellEscape(value);
370		if (!value)
371		return -1;
372
373		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
374		free(value);
375		if (rc < 0)
376		return -1;
377
378		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
379		rc = system(s);
380		free(s);
381		return rc;
382		}
383
384	return count;	/* this is a gigantic hack to avoid clobbering grub2 variables... */
385		static int is_special_grub2_variable(const char *name)
386		{
387		if (!strcmp(name, "\"${next_entry}\""))
388		return 1;
389		if (!strcmp(name, "\"${prev_saved_entry}\""))
390		return 1;
391		return 0;
392	}	}
393
394	char *grub2ExtractTitle(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
395	char * current;	{
396	char * current_indent;	int count = 0;
	int current_len;
	int current_indent_len;
	int i;
397
398	/* bail out if line does not start with menuentry */	for (int i = 0; i < line->numElements; i++) {
399	if (strcmp(line->elements[0].item, "menuentry"))	int indentSize = 0;
	return NULL;
400
401	i = 1;	count = count + strlen(line->elements[i].item);
	current = line->elements[i].item;
	current_len = strlen(current);
402
403	/* if second word is quoted, strip the quotes and return single word */	indentSize = strlen(line->elements[i].indent);
404	if ((*current == '\'') && (*(current + current_len - 1) == '\'')) {	if (indentSize > 0)
405	char *tmp;	count = count + indentSize;
406		else
407		/* be extra safe and add room for whitespaces */
408		count = count + 1;
409		}
410
411	tmp = strdup(current);	/* room for trailing terminator */
412	*(tmp + current_len - 1) = '\0';	count = count + 1;
	return ++tmp;
	}
413
414	/* if no quotes, return second word verbatim */	return count;
415	if (*current != '\'') {	}
416	return current;
417	}	static int isquote(char q)
418		{
419		if (q == '\'' || q == '\"')
420		return 1;
421		return 0;
422		}
423
424		static int iskernel(enum lineType_e type)
425		{
426		return (type == LT_KERNEL || type == LT_KERNEL_EFI
427		|| type == LT_KERNEL_16);
428		}
429
430		static int isinitrd(enum lineType_e type)
431		{
432		return (type == LT_INITRD || type == LT_INITRD_EFI
433		|| type == LT_INITRD_16);
434		}
435
436	/* second element start with a quote, so we have to find the element	char *grub2ExtractTitle(struct singleLine *line)
437	* whose last character is also quote (assuming it's the closing one) */	{
438	if (*current == '\'') {	char *current;
439	int resultMaxSize;	char *current_indent;
440	char * result;	int current_len;
441		int current_indent_len;
442	resultMaxSize = sizeOfSingleLine(line);	int i;
443	result = malloc(resultMaxSize);
444	snprintf(result, resultMaxSize, "%s", ++current);	/* bail out if line does not start with menuentry */
445		if (strcmp(line->elements[0].item, "menuentry"))
446		return NULL;
447
448	i++;	i = 1;
	for (; i < line->numElements; ++i) {
449	current = line->elements[i].item;	current = line->elements[i].item;
450	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
451
452	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
453	if (*(current + current_len - 1) != '\'') {	if (isquote(*current) && isquote(current[current_len - 1])) {
454	strncat(result, current, current_len);	char *tmp;
455	} else {
456	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
457	break;	if (!tmp)
458	}	return NULL;
459	}	tmp[strlen(tmp) - 1] = '\0';
460	return result;	return tmp;
461	}	}
462
463		/* if no quotes, return second word verbatim */
464		if (!isquote(*current))
465		return current;
466
467		/* second element start with a quote, so we have to find the element
468		* whose last character is also quote (assuming it's the closing one) */
469		int resultMaxSize;
470		char *result;
471		/* need to ensure that ' does not match " as we search */
472		char quote_char = *current;
473
474		resultMaxSize = sizeOfSingleLine(line);
475		result = malloc(resultMaxSize);
476		snprintf(result, resultMaxSize, "%s", ++current);
477
478	return NULL;	i++;
479		for (; i < line->numElements; ++i) {
480		current = line->elements[i].item;
481		current_len = strlen(current);
482		current_indent = line->elements[i].indent;
483		current_indent_len = strlen(current_indent);
484
485		strncat(result, current_indent, current_indent_len);
486		if (current[current_len - 1] != quote_char) {
487		strncat(result, current, current_len);
488		} else {
489		strncat(result, current, current_len - 1);
490		break;
491		}
492		}
493		return result;
494	}	}
495
496	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
497	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
498	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
499	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
500	.defaultSupportSaved = 0,	.keywords = grub2Keywords,
501	.defaultIsVariable = 1,	.defaultIsIndex = 1,
502	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
503	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
504	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
505	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
506	.mbHyperFirst = 1,	.titlePosition = 1,
507	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
508	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
509		.mbInitRdIsModule = 1,
510		.mbAllowExtraInitRds = 1,
511	};	};
512
513	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
514	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
515	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
516	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
517	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
518	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
519	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
520	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
521	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
522	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
523	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
524	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
525	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
526	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
527	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
528	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
529	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
530	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
531	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
532	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
533	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
534	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
535	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
536	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
539	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
540	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
541	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
542	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
543	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
544	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
545	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
546	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
547	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
548	{ NULL,    0, 0 },	{NULL, 0, 0},
549	};	};
550
551	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
552	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
553	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
554	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
555	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
556	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
557	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
558	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
559	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
560	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
561	{ NULL,    0, 0 },	{NULL, 0, 0},
562	};	};
563
564	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
565	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
566	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
567	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
568	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
569	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
570	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
571	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
572	{ NULL,    0, 0 },	{NULL, 0, 0},
573	};	};
574
575	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
576	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
577	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
578	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
579	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
580	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
581	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
582	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
583	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
584	{ NULL,    0, 0 },	{NULL, 0, 0},
585	};	};
586
587	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
588	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
589	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
590	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
591	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
592	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
593	{ NULL,         0, 0 },	{NULL, 0, 0},
594	};	};
595
596	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
597	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
598	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
599	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
600	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
601	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
602	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
603	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
604	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
605		{"fdtdir", LT_DEVTREE, ' '},
606		{NULL, 0, 0},
607	};	};
608
609	int useextlinuxmenu;	int useextlinuxmenu;
610	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
611	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
612	.keywords = eliloKeywords,	.keywords = eliloKeywords,
613	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
614	.needsBootPrefix = 1,	.needsBootPrefix = 1,
615	.argsInQuotes = 1,	.argsInQuotes = 1,
616	.mbConcatArgs = 1,	.mbConcatArgs = 1,
617		.titlePosition = 1,
618	};	};
619
620	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
621	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
622	.keywords = liloKeywords,	.keywords = liloKeywords,
623	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
624	.argsInQuotes = 1,	.argsInQuotes = 1,
625	.maxTitleLength = 15,	.maxTitleLength = 15,
626		.titlePosition = 1,
627	};	};
628
629	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
630	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
631	.keywords = yabootKeywords,	.keywords = yabootKeywords,
632	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
633	.needsBootPrefix = 1,	.needsBootPrefix = 1,
634	.argsInQuotes = 1,	.argsInQuotes = 1,
635	.maxTitleLength = 15,	.maxTitleLength = 15,
636	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
637		.titlePosition = 1,
638	};	};
639
640	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
641	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
642	.keywords = siloKeywords,	.keywords = siloKeywords,
643	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
644	.needsBootPrefix = 1,	.needsBootPrefix = 1,
645	.argsInQuotes = 1,	.argsInQuotes = 1,
646	.maxTitleLength = 15,	.maxTitleLength = 15,
647		.titlePosition = 1,
648	};	};
649
650	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
651	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
652	.keywords = ziplKeywords,	.keywords = ziplKeywords,
653	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
654	.argsInQuotes = 1,	.argsInQuotes = 1,
655	.titleBracketed = 1,	.titleBracketed = 1,
656	};	};
657
658	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
659	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
660	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
661	.entryStart = LT_TITLE,	.caseInsensitive = 1,
662	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
663	.maxTitleLength = 255,	.needsBootPrefix = 1,
664	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
665		.mbAllowExtraInitRds = 1,
666		.defaultIsUnquoted = 1,
667		.titlePosition = 1,
668	};	};
669
670	struct grubConfig {	struct grubConfig {
671	struct singleLine * theLines;	struct singleLine *theLines;
672	struct singleEntry * entries;	struct singleEntry *entries;
673	char * primaryIndent;	char *primaryIndent;
674	char * secondaryIndent;	char *secondaryIndent;
675	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
676	* written out, overriding original */	* written out, overriding original */
677	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
678	int flags;	int flags;
679	struct configFileInfo * cfi;	struct configFileInfo *cfi;
680	};	};
681
682	blkid_cache blkid;	blkid_cache blkid;
683
684	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
685	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
686	const char * path, const char * prefix,	const char *path, const char *prefix,
687	int * index);	int *index);
688	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
689	static void lineInit(struct singleLine * line);	int *index);
690	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
691	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
692	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
693	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
694	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
695	struct configFileInfo * cfi);	struct configFileInfo *cfi);
696	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
697	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
698	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
699	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
700	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
701	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
702	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
703	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
704	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
705	struct configFileInfo * cfi);	struct configFileInfo *cfi);
706	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
707	struct singleLine * line);	struct configFileInfo *cfi);
708	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
709	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
710	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
711	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
712	const char * val,	struct singleLine *tmplLine,
713	struct configFileInfo * cfi);	struct singleLine *prevLine,
714	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
715	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
716	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
717	const char * val);	enum lineType_e type, char *defaultIndent,
718		const char *val);
719
720	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
721	#ifdef __GNUC__	#ifdef __GNUC__
722	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
723	#else	#else
724	;	;
725	#endif	#endif
726
727	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
728	char *buf = NULL;	{
729	char c;	char *buf = NULL;
730	va_list args;	char c;
731	size_t size = 0;	va_list args;
732	va_start(args, format);	size_t size = 0;
733		va_start(args, format);
734	/* XXX requires C99 vsnprintf behavior */
735	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
736	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
737	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
738	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
739	}	abort();
740		}
741
742	va_end(args);	va_end(args);
743	va_start(args, format);	va_start(args, format);
744
745	buf = malloc(size);	buf = malloc(size);
746	if (buf == NULL)	if (buf == NULL)
747	return NULL;	return NULL;
748	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
749	va_end (args);	va_end(args);
750
751	return buf;	return buf;
752	}	}
753
754	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
755	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
756	struct keywordTypes * kw;	{
757	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
758	if (kw->type == type)	int ll = strlen(label);
759	return kw;	int rc;
760		int (*snc)(const char *s1, const char *s2, size_t n) =
761		case_insensitive ? strncasecmp : strncmp;
762		int (*sc)(const char *s1, const char *s2) =
763		case_insensitive ? strcasecmp : strcmp;
764
765		rc = snc(kw->key, label, kwl);
766		if (rc)
767		return rc;
768
769		for (int i = kwl; i < ll; i++) {
770		if (isspace(label[i]))
771		return 0;
772		if (kw->separatorChar && label[i] == kw->separatorChar)
773		return 0;
774		else if (kw->nextChar && label[i] == kw->nextChar)
775		return 0;
776		return sc(kw->key+kwl, label+kwl);
777	}	}
778	return NULL;	return 0;
779	}	}
780
781	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
782	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
783	if (kt)	{
784	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
785	return "unknown";	switch (type) {
786		case LT_KERNEL:
787		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
788		case LT_INITRD:
789		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
790		default:
791		return type;
792		}
793		#if defined(__i386__) || defined(__x86_64__)
794		} else if (cfi == &grub2ConfigType) {
795		switch (type) {
796		case LT_KERNEL:
797		return LT_KERNEL_16;
798		case LT_INITRD:
799		return LT_INITRD_16;
800		default:
801		return type;
802		}
803		#endif
804		}
805		return type;
806	}	}
807
808	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
809	if (!blkid)	struct configFileInfo *cfi)
810	blkid_get_cache(&blkid, NULL);	{
811		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
812		if (kw->type == type)
813		return kw;
814		}
815		return NULL;
816		}
817
818	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
819		{
820		struct keywordTypes *kt = getKeywordByType(type, cfi);
821		if (kt)
822		return kt->key;
823		return "unknown";
824	}	}
825
826	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
827	if (!blkid)	{
828	blkid_get_cache(&blkid, NULL);	if (!blkid)
829		blkid_get_cache(&blkid, NULL);
830
831	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
832	}	}
833
834	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
835	struct configFileInfo * cfi) {	{
836	struct keywordTypes * kw;	if (!blkid)
837	for (kw = cfi->keywords; kw->key; kw++) {	blkid_get_cache(&blkid, NULL);
	if (!strcmp(keyword, kw->key))
	return kw->type;
	}
	return LT_UNKNOWN;
	}
838
839	static struct singleLine * getLineByType(enum lineType_e type,	return blkid_get_tag_value(blkid, "UUID", device);
	struct singleLine * line) {
	dbgPrintf("getLineByType(%d): ", type);
	for (; line; line = line->next) {
	dbgPrintf("%d:%s ", line->type,
	line->numElements ? line->elements[0].item : "(empty)");
	if (line->type & type) break;
	}
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
840	}	}
841
842	static int isBracketedTitle(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
843	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct configFileInfo *cfi)
844	int len = strlen(line->elements[0].item);	{
845	if (*(line->elements[0].item + len - 1) == ']') {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
846	/* FIXME: this is a hack... */	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
847	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return kw->type;
848	return 1;	}
849	}	return LT_UNKNOWN;
	}
	}
	return 0;
850	}	}
851
852	static int isEntryStart(struct singleLine * line,	static struct singleLine *getLineByType(enum lineType_e type,
853	struct configFileInfo * cfi) {	struct singleLine *line)
854	return line->type == cfi->entryStart || line->type == LT_OTHER ||	{
855	(cfi->titleBracketed && isBracketedTitle(line));	dbgPrintf("getLineByType(%d): ", type);
856		for (; line; line = line->next) {
857		dbgPrintf("%d:%s ", line->type,
858		line->numElements ? line->elements[0].
859		item : "(empty)");
860		if (line->type & type)
861		break;
862		}
863		dbgPrintf(line ? "\n" : " (failed)\n");
864		return line;
865	}	}
866
867	/* extract the title from within brackets (for zipl) */	static int isBracketedTitle(struct singleLine *line)
868	static char * extractTitle(struct singleLine * line) {	{
869	/* bracketed title... let's extract it (leaks a byte) */	if (line->numElements == 1 && *line->elements[0].item == '[') {
870	char * title;	int len = strlen(line->elements[0].item);
871	title = strdup(line->elements[0].item);	if (*(line->elements[0].item + len - 1) == ']') {
872	title++;	/* FIXME: this is a hack... */
873	*(title + strlen(title) - 1) = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
874	return title;	return 1;
875	}	}
876		}
877	static int readFile(int fd, char ** bufPtr) {	}
878	int alloced = 0, size = 0, i = 0;	return 0;
879	char * buf = NULL;	}
	do {
	size += i;
	if ((size + 1024) > alloced) {
	alloced += 4096;
	buf = realloc(buf, alloced + 1);
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
	buf = realloc(buf, size + 2);
	if (size == 0)
	buf[size++] = '\n';
	else
	if (buf[size - 1] != '\n')
	buf[size++] = '\n';
	buf[size] = '\0';
880
881	*bufPtr = buf;	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
882		{
883		return line->type == cfi->entryStart || line->type == LT_OTHER ||
884		(cfi->titleBracketed && isBracketedTitle(line));
885		}
886
887	return 0;	/* extract the title from within brackets (for zipl) */
888		static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
889		{
890		/* bracketed title... let's extract it */
891		char *title = NULL;
892		if (line->type == LT_TITLE) {
893		char *tmp = line->elements[cfg->cfi->titlePosition].item;
894		if (cfg->cfi->titleBracketed) {
895		tmp++;
896		title = strdup(tmp);
897		*(title + strlen(title) - 1) = '\0';
898		} else {
899		title = strdup(tmp);
900		}
901		} else if (line->type == LT_MENUENTRY)
902		title = strdup(line->elements[1].item);
903		else
904		return NULL;
905		return title;
906	}	}
907
908	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
909	line->indent = NULL;	{
910	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
911	line->numElements = 0;	char *buf = NULL;
	line->next = NULL;
	}
	struct singleLine * lineDup(struct singleLine * line) {
	int i;
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
912
913	return newLine;	do {
914	}	size += i;
915		if ((size + 1024) > alloced) {
916		alloced += 4096;
917		buf = realloc(buf, alloced + 1);
918		}
919		} while ((i = read(fd, buf + size, 1024)) > 0);
920
921	static void lineFree(struct singleLine * line) {	if (i < 0) {
922	int i;	fprintf(stderr, _("error reading input: %s\n"),
923		strerror(errno));
924		free(buf);
925		return 1;
926		}
927
928	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
929		if (size == 0)
930		buf[size++] = '\n';
931		else if (buf[size - 1] != '\n')
932		buf[size++] = '\n';
933		buf[size] = '\0';
934
935	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
936
937	if (line->elements) free(line->elements);	return 0;
	lineInit(line);
938	}	}
939
940	static int lineWrite(FILE * out, struct singleLine * line,	static void lineInit(struct singleLine *line)
941	struct configFileInfo * cfi) {	{
942	int i;	line->type = LT_UNIDENTIFIED;
943		line->indent = NULL;
944		line->elements = NULL;
945		line->numElements = 0;
946		line->next = NULL;
947		}
948
949	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *lineDup(struct singleLine *line)
950		{
951		struct singleLine *newLine = malloc(sizeof(*newLine));
952
953	for (i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
954	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->next = NULL;
955	if (fputc('"', out) == EOF) return -1;	newLine->type = line->type;
956		newLine->numElements = line->numElements;
957		newLine->elements = malloc(sizeof(*newLine->elements) *
958		newLine->numElements);
959
960	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < newLine->numElements; i++) {
961	if (i < line->numElements - 1)	newLine->elements[i].indent = strdup(line->elements[i].indent);
962	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
963	}	}
964
965		return newLine;
966		}
967
968	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
969	if (fputc('"', out) == EOF) return -1;	{
970		if (line->indent)
971		free(line->indent);
972
973	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
974		free(line->elements[i].item);
975		free(line->elements[i].indent);
976		}
977
978	return 0;	if (line->elements)
979		free(line->elements);
980		lineInit(line);
981	}	}
982
983	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
984	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
985	struct configFileInfo * cfi) {	{
986	char * end;	if (fprintf(out, "%s", line->indent) == -1)
987	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
988
989	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
990		/* Need to handle this, because we strip the quotes from
991		* menuentry when read it. */
992		if (line->type == LT_MENUENTRY && i == 1) {
993		if (!isquote(*line->elements[i].item)) {
994		int substring = 0;
995		/* If the line contains nested quotes, we did
996		* not strip the "interna" quotes and we must
997		* use the right quotes again when writing
998		* the updated file. */
999		for (int j = i; j < line->numElements; j++) {
1000		if (strchr(line->elements[i].item, '\'')
1001		!= NULL) {
1002		substring = 1;
1003		fprintf(out, "\"%s\"",
1004		line->elements[i].item);
1005		break;
1006		}
1007		}
1008		if (!substring)
1009		fprintf(out, "\'%s\'",
1010		line->elements[i].item);
1011		} else {
1012		fprintf(out, "%s", line->elements[i].item);
1013		}
1014		fprintf(out, "%s", line->elements[i].indent);
1015
1016	end = strchr(start, '\n');	continue;
1017	*end = '\0';	}
	*bufPtr = end + 1;
1018
1019	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1020		if (fputc('"', out) == EOF)
1021		return -1;
1022
1023		if (fprintf(out, "%s", line->elements[i].item) == -1)
1024		return -1;
1025		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1026		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1027		return -1;
1028		}
1029
1030		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1031		if (fputc('"', out) == EOF)
1032		return -1;
1033
1034	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1035	start = chptr;	return -1;
1036
1037	while (start < end) {	return 0;
1038	/* we know !isspace(*start) */	}
1039
1040	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1041	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1042	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1043	sizeof(*line->elements) * elementsAlloced);	{
1044	}	char *end;
1045		char *start = *bufPtr;
1046		char *chptr;
1047		int elementsAlloced = 0;
1048		struct lineElement *element;
1049		int first = 1;
1050
1051	element = line->elements + line->numElements;	lineFree(line);
1052
1053	chptr = start;	end = strchr(start, '\n');
1054	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1055	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1056
1057	/* 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));
1058
1059	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1060	start = chptr;	start = chptr;
1061
1062	line->numElements++;	while (start < end) {
1063	first = 0;	/* we know !isspace(*start) */
	}
1064
1065	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1066	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1067	else {	line->elements = realloc(line->elements,
1068	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1069	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1070	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1071
1072	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1073
1074	for (i = 0; i < line->numElements; i++) {	chptr = start;
1075	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1076	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1077	free(line->elements[i].item);	break;
1078	free(line->elements[i].indent);	chptr++;
1079	}	}
1080		if (line->type == LT_UNIDENTIFIED)
1081		line->type = getTypeByKeyword(start, cfi);
1082		element->item = strndup(start, chptr - start);
1083		start = chptr;
1084
1085		/* lilo actually accepts the pathological case of
1086		* append = " foo " */
1087		if (*start == '=')
1088		chptr = start + 1;
1089		else
1090		chptr = start;
1091
1092		do {
1093		for (; *chptr && isspace(*chptr); chptr++) ;
1094		if (*chptr == '=')
1095		chptr = chptr + 1;
1096		} while (isspace(*chptr));
1097
1098	line->type = LT_WHITESPACE;	element->indent = strndup(start, chptr - start);
1099	line->numElements = 0;	start = chptr;
	}
	} else {
	struct keywordTypes *kw;
1100
1101	kw = getKeywordByType(line->type, cfi);	line->numElements++;
1102		first = 0;
1103	/* space isn't the only separator, we need to split	}
	* elements up more
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
1104
1105	numNewElements = 0;	if (!line->numElements)
1106	p = line->elements[i].item;	line->type = LT_WHITESPACE;
1107	while (*p != '\0') {	else {
1108	if (*p == kw->separatorChar)	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1109	numNewElements++;	if (line->type == LT_UNKNOWN) {
1110	p++;	/* zipl does [title] instead of something reasonable
1111	}	* like all the other boot loaders.  kind of ugly */
1112	if (line->numElements + numNewElements >= elementsAlloced) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1113	elementsAlloced += numNewElements + 5;	line->type = LT_TITLE;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
1114	}	}
1115
1116	for (j = line->numElements; j > i; j--) {	/* this is awkward, but we need to be able to handle
1117	line->elements[j + numNewElements] = line->elements[j];	* keywords that begin with a # (specifically for
1118		* #boot in grub.conf), but still make comments lines
1119		* with no elements (everything stored in the indent
1120		*/
1121		if (*line->elements[0].item == '#') {
1122		char *fullLine;
1123		int len;
1124
1125		len = strlen(line->indent);
1126		for (int i = 0; i < line->numElements; i++)
1127		len += strlen(line->elements[i].item) +
1128		strlen(line->elements[i].indent);
1129
1130		fullLine = malloc(len + 1);
1131		strcpy(fullLine, line->indent);
1132		free(line->indent);
1133		line->indent = fullLine;
1134
1135		for (int i = 0; i < line->numElements; i++) {
1136		strcat(fullLine,
1137		line->elements[i].item);
1138		strcat(fullLine,
1139		line->elements[i].indent);
1140		free(line->elements[i].item);
1141		free(line->elements[i].indent);
1142		}
1143
1144		line->type = LT_WHITESPACE;
1145		line->numElements = 0;
1146	}	}
1147	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1148		struct keywordTypes *kw;
1149
1150	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1151
1152	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1153	if (*p == '\0') {	* elements up more
1154	break;	*/
1155	}	if (!isspace(kw->separatorChar)) {
1156		char indent[2] = "";
1157		indent[0] = kw->separatorChar;
1158		for (int i = 1; i < line->numElements; i++) {
1159		char *p;
1160		int numNewElements;
1161
1162		numNewElements = 0;
1163		p = line->elements[i].item;
1164		while (*p != '\0') {
1165		if (*p == kw->separatorChar)
1166		numNewElements++;
1167		p++;
1168		}
1169		if (line->numElements +
1170		numNewElements >= elementsAlloced) {
1171		elementsAlloced +=
1172		numNewElements + 5;
1173		line->elements =
1174		realloc(line->elements,
1175		sizeof(*line->
1176		elements) *
1177		elementsAlloced);
1178		}
1179
1180	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1181	line->elements[i].indent = strdup(indent);	j--) {
1182	*p++ = '\0';	line->elements[j +
1183	i++;	numNewElements] =
1184	line->elements[i].item = strdup(p);	line->elements[j];
1185	line->elements[i].indent = strdup("");	}
1186	p = line->elements[i].item;	line->numElements += numNewElements;
1187
1188		p = line->elements[i].item;
1189		while (*p != '\0') {
1190
1191		while (*p != kw->separatorChar
1192		&& *p != '\0')
1193		p++;
1194		if (*p == '\0') {
1195		break;
1196		}
1197
1198		line->elements[i + 1].indent =
1199		line->elements[i].indent;
1200		line->elements[i].indent =
1201		strdup(indent);
1202		*p++ = '\0';
1203		i++;
1204		line->elements[i].item =
1205		strdup(p);
1206		}
1207		}
1208		}
1209		} else if (line->type == LT_SET_VARIABLE) {
1210		/* and if it's a "set blah=" we need to split it
1211		* yet a third way to avoid rhbz# XXX FIXME :/
1212		*/
1213		char *eq;
1214		int l;
1215		int numElements = line->numElements;
1216		struct lineElement *newElements;
1217		eq = strchr(line->elements[1].item, '=');
1218		if (!eq)
1219		return 0;
1220		l = eq - line->elements[1].item;
1221		if (eq[1] != 0)
1222		numElements++;
1223		newElements = calloc(numElements,sizeof (*newElements));
1224		memcpy(&newElements[0], &line->elements[0],
1225		sizeof (newElements[0]));
1226		newElements[1].item =
1227		strndup(line->elements[1].item, l);
1228		newElements[1].indent = "=";
1229		*(eq++) = '\0';
1230		newElements[2].item = strdup(eq);
1231		free(line->elements[1].item);
1232		if (line->elements[1].indent)
1233		newElements[2].indent = line->elements[1].indent;
1234		for (int i = 2; i < line->numElements; i++) {
1235		newElements[i+1].item = line->elements[i].item;
1236		newElements[i+1].indent =
1237		line->elements[i].indent;
1238	}	}
1239	}	free(line->elements);
1240		line->elements = newElements;
1241		line->numElements = numElements;
1242	}	}
1243	}	}
	}
1244
1245	return 0;	return 0;
1246	}	}
1247
1248	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1249	struct configFileInfo * cfi) {	{
1250	int in;	int i;
1251	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1252	int rc;	if (s[i] < '0' || s[i] > '9')
1253	int sawEntry = 0;	return 0;
1254	int movedLine = 0;	return i;
1255	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int i, 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;
	}
	}
1256
1257	rc = readFile(in, &incoming);	static struct grubConfig *readConfig(const char *inName,
1258	close(in);	struct configFileInfo *cfi)
1259	if (rc) return NULL;	{
1260		int in;
1261	head = incoming;	char *incoming = NULL, *head;
1262	cfg = malloc(sizeof(*cfg));	int rc;
1263	cfg->primaryIndent = strdup("");	int sawEntry = 0;
1264	cfg->secondaryIndent = strdup("\t");	int movedLine = 0;
1265	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	struct grubConfig *cfg;
1266	cfg->cfi = cfi;	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1267	cfg->theLines = NULL;	char *end;
1268	cfg->entries = NULL;	struct singleEntry *entry = NULL;
1269	cfg->fallbackImage = 0;	int len;
1270		char *buf;
1271	/* copy everything we have */
1272	while (*head) {	if (inName == NULL) {
1273	line = malloc(sizeof(*line));	printf("Could not find bootloader configuration\n");
1274	lineInit(line);	exit(1);
1275		} else if (!strcmp(inName, "-")) {
1276		in = 0;
1277		} else {
1278		if ((in = open(inName, O_RDONLY)) < 0) {
1279		fprintf(stderr, _("error opening %s for read: %s\n"),
1280		inName, strerror(errno));
1281		return NULL;
1282		}
1283		}
1284
1285	if (getNextLine(&head, line, cfi)) {	rc = readFile(in, &incoming);
1286	free(line);	close(in);
1287	/* XXX memory leak of everything in cfg */	if (rc)
1288	return NULL;	return NULL;
1289	}
1290		head = incoming;
1291	if (!sawEntry && line->numElements) {	cfg = malloc(sizeof(*cfg));
1292	free(cfg->primaryIndent);	cfg->primaryIndent = strdup("");
1293	cfg->primaryIndent = strdup(line->indent);	cfg->secondaryIndent = strdup("\t");
1294	} else if (line->numElements) {	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1295	free(cfg->secondaryIndent);	cfg->cfi = cfi;
1296	cfg->secondaryIndent = strdup(line->indent);	cfg->theLines = NULL;
1297	}	cfg->entries = NULL;
1298		cfg->fallbackImage = 0;
1299	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1300	sawEntry = 1;	/* copy everything we have */
1301	if (!entry) {	while (*head) {
1302	cfg->entries = malloc(sizeof(*entry));	line = malloc(sizeof(*line));
1303	entry = cfg->entries;	lineInit(line);
1304	} else {
1305	entry->next = malloc(sizeof(*entry));	if (getNextLine(&head, line, cfi)) {
1306	entry = entry->next;	free(line);
1307	}	/* XXX memory leak of everything in cfg */
1308		return NULL;
1309		}
1310
1311	entry->skip = 0;	if (!sawEntry && line->numElements) {
1312	entry->multiboot = 0;	free(cfg->primaryIndent);
1313	entry->lines = NULL;	cfg->primaryIndent = strdup(line->indent);
1314	entry->next = NULL;	} else if (line->numElements) {
1315	}	free(cfg->secondaryIndent);
1316		cfg->secondaryIndent = strdup(line->indent);
1317	if (line->type == LT_SET_VARIABLE) {	}
	int i;
	dbgPrintf("found 'set' command (%d elements): ", line->numElements);
	dbgPrintf("%s", line->indent);
	for (i = 0; i < line->numElements; i++)
	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1318
1319	for (i = 1; i < line->numElements; i++) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1320	strcat(buf, line->elements[i].item);	sawEntry = 1;
1321	free(line->elements[i].item);	if (!entry) {
1322		cfg->entries = malloc(sizeof(*entry));
1323		entry = cfg->entries;
1324		} else {
1325		entry->next = malloc(sizeof(*entry));
1326		entry = entry->next;
1327		}
1328
1329	if ((i + 1) != line->numElements) {	entry->skip = 0;
1330	strcat(buf, line->elements[i].indent);	entry->multiboot = 0;
1331	free(line->elements[i].indent);	entry->lines = NULL;
1332	}	entry->next = NULL;
1333	}	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} 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 (*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 (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;
1334
1335	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1336	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1337	entry->lines = line;	line->numElements);
1338	else	dbgPrintf("%s", line->indent);
1339	last->next = line;	for (int i = 0; i < line->numElements; i++)
1340	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1341		line->elements[i].indent);
1342	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1343	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1344	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1345	sawEntry = 0;	if (kwType && line->numElements == 3
1346	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1347	if (!cfg->theLines)	&& !is_special_grub2_variable(
1348	cfg->theLines = line;	line->elements[2].item)) {
1349	else	dbgPrintf("Line sets default config\n");
1350	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1351	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1352	}	}
1353		} else if (iskernel(line->type)) {
1354		/* if by some freak chance this is multiboot and the
1355		* "module" lines came earlier in the template, make
1356		* sure to use LT_HYPER instead of LT_KERNEL now
1357		*/
1358		if (entry && entry->multiboot)
1359		line->type = LT_HYPER;
1360
1361	last = line;	} else if (line->type == LT_MBMODULE) {
1362	}	/* go back and fix the LT_KERNEL line to indicate
1363		* LT_HYPER instead, now that we know this is a
1364		* multiboot entry.  This only applies to grub, but
1365		* that's the only place we should find LT_MBMODULE
1366		* lines anyway.
1367		*/
1368		for (struct singleLine * l = entry->lines; l;
1369		l = l->next) {
1370		if (l->type == LT_HYPER)
1371		break;
1372		else if (iskernel(l->type)) {
1373		l->type = LT_HYPER;
1374		break;
1375		}
1376		}
1377		entry->multiboot = 1;
1378
1379	free(incoming);	} else if (line->type == LT_HYPER) {
1380		entry->multiboot = 1;
1381
1382	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1383	if (defaultLine) {	cfg->fallbackImage =
1384	if (cfi->defaultIsVariable) {	strtol(line->elements[1].item, &end, 10);
1385	char *value = defaultLine->elements[2].item;	if (*end)
1386	while (*value && (*value == '"' || *value == '\'' ||	cfg->fallbackImage = -1;
1387	*value == ' ' || *value == '\t'))
1388	value++;	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1389	cfg->defaultImage = strtol(value, &end, 10);	|| (line->type == LT_TITLE
1390	while (*end && (*end == '"' || *end == '\'' ||	&& line->numElements > 1)) {
1391	*end == ' ' || *end == '\t'))	/* make the title/default a single argument (undoing
1392	end++;	* our parsing) */
1393	if (*end) cfg->defaultImage = -1;	len = 0;
1394	} else if (cfi->defaultSupportSaved &&	for (int i = 1; i < line->numElements; i++) {
1395	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	len += strlen(line->elements[i].item);
1396	cfg->defaultImage = DEFAULT_SAVED;	len += strlen(line->elements[i].indent);
1397	} else if (cfi->defaultIsIndex) {	}
1398	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);	buf = malloc(len + 1);
1399	if (*end) cfg->defaultImage = -1;	*buf = '\0';
	} else if (defaultLine->numElements >= 2) {
	i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1400
1401	if (entry){	for (int i = 1; i < line->numElements; i++) {
1402	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1403	}else{	free(line->elements[i].item);
1404	cfg->defaultImage = -1;
1405	}	if ((i + 1) != line->numElements) {
1406	}	strcat(buf, line->elements[i].indent);
1407	} else {	free(line->elements[i].indent);
1408	cfg->defaultImage = 0;	}
1409	}	}
1410
1411	return cfg;	line->elements[1].indent =
1412	}	line->elements[line->numElements - 1].indent;
1413		line->elements[1].item = buf;
1414		line->numElements = 2;
1415		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1416		/* let --remove-kernel="TITLE=what" work */
1417		len = 0;
1418		char *extras;
1419		char *title;
1420		/* initially unseen value */
1421		char quote_char = '\0';
1422
1423		for (int i = 1; i < line->numElements; i++) {
1424		len += strlen(line->elements[i].item);
1425		len += strlen(line->elements[i].indent);
1426		}
1427		buf = malloc(len + 1);
1428		*buf = '\0';
1429
1430	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1431	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1432	struct singleEntry * entry;	*extras = '\0';
1433	struct singleLine * line;
1434	int i;	/* get title. */
1435		for (int i = 0; i < line->numElements; i++) {
1436	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1437		(line->elements[i].item, "menuentry"))
1438	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1439	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1440	else if (cfg->defaultImage > -1) {	&& quote_char == '\0') {
1441	if (cfg->cfi->defaultIsIndex) {	/* ensure we properly pair off quotes */
1442	if (cfg->cfi->defaultIsVariable) {	quote_char = *line->elements[i].item;
1443	fprintf(out, "%sset default=\"%d\"\n", indent,	title = line->elements[i].item + 1;
1444	cfg->defaultImage);	} else {
1445	} else {	title = line->elements[i].item;
1446	fprintf(out, "%sdefault%s%d\n", indent, separator,	}
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1447
1448	entry = cfg->entries;	len = strlen(title);
1449	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1450		strncat(buf, title, len - 1);
1451		break;
1452		} else {
1453		strcat(buf, title);
1454		strcat(buf, line->elements[i].indent);
1455		}
1456		}
1457
1458	i = 0;	/* get extras */
1459	while (entry && i < image) {	int count = 0;
1460	entry = entry->next;	quote_char = '\0';
1461		for (int i = 0; i < line->numElements; i++) {
1462		if (count >= 2) {
1463		strcat(extras, line->elements[i].item);
1464		strcat(extras,
1465		line->elements[i].indent);
1466		}
1467
1468	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1469	i++;	(line->elements[i].item, "menuentry"))
1470	}	continue;
1471
1472		/* count ' or ", there should be two in menuentry line. */
1473		if (isquote(*line->elements[i].item)
1474		&& quote_char == '\0') {
1475		/* ensure we properly pair off quotes */
1476		quote_char = *line->elements[i].item;
1477		count++;
1478		}
1479
1480	if (!entry) return;	len = strlen(line->elements[i].item);
1481
1482	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1483		quote_char)
1484		count++;
1485
1486	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1487	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1488	line->elements[1].item);	line->elements[1].indent =
1489	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1490	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1491	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1492	extractTitle(line));	line->elements[line->numElements - 2].indent;
1493	}	line->elements[2].item = extras;
1494	}	line->numElements = 3;
1495	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1496	}	/* Strip off any " which may be present; they'll be
1497		* put back on write. This is one of the few (the
1498		* only?) places that grubby canonicalizes the output
1499		*/
1500		if (line->numElements >= 2) {
1501		int last, len;
1502
1503	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1504	const char * prefix) {	memmove(line->elements[1].item,
1505	FILE * out;	line->elements[1].item + 1,
1506	struct singleLine * line;	strlen(line->elements[1].item +
1507	struct singleEntry * entry;	1) + 1);
1508	char * tmpOutName;
1509	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1510	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1511	int i;	if (isquote(line->elements[last].item[len]))
1512		line->elements[last].item[len] = '\0';
1513	if (!strcmp(outName, "-")) {	}
1514	out = stdout;	}
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1515
1516	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1517	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1518	while (line) {	defaultLine = line;
1519	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;
	}
	}
1520
1521	line = line->next;	/* If we find a generic config option which should live at the
1522	}	top of the file, move it there. Old versions of grubby were
1523		probably responsible for putting new images in the wrong
1524		place in front of it anyway. */
1525		if (sawEntry && line->type == LT_GENERIC) {
1526		struct singleLine **l = &cfg->theLines;
1527		struct singleLine **last_nonws = &cfg->theLines;
1528		while (*l) {
1529		if ((*l)->type != LT_WHITESPACE)
1530		last_nonws = &((*l)->next);
1531		l = &((*l)->next);
1532		}
1533		line->next = *last_nonws;
1534		*last_nonws = line;
1535		movedLine = 1;
1536		continue; /* without setting 'last' */
1537		}
1538
1539	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1540	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1541	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1542	}	&& last->type == LT_WHITESPACE) {
1543		lineFree(line);
1544		free(line);
1545		movedLine = 0;
1546		continue;
1547		}
1548		movedLine = 0;
1549
1550	i = 0;	if (sawEntry) {
1551	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1552	if (entry->skip) continue;	entry->lines = line;
1553		else
1554		last->next = line;
1555		dbgPrintf("readConfig added %s to %p\n",
1556		getKeyByType(line->type, cfi), entry);
1557
1558	line = entry->lines;	/* we could have seen this outside of an entry... if
1559	while (line) {	* so, we ignore it like any other line we don't grok
1560	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1561	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1562	tmpOutName, strerror(errno));	sawEntry = 0;
1563	fclose(out);	} else {
1564	unlink(tmpOutName);	if (!cfg->theLines)
1565	return 1;	cfg->theLines = line;
1566	}	else
1567	line = line->next;	last->next = line;
1568	}	dbgPrintf("readConfig added %s to cfg\n",
1569	}	getKeyByType(line->type, cfi));
1570		}
1571
1572	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;
1573	}	}
	}
1574
1575	return 0;	free(incoming);
	}
1576
1577	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1578	int i = 0;	if (defaultLine) {
1579	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1580		cfi->defaultSupportSaved &&
1581	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1582	while (entry) {	"\"${saved_entry}\"", 16)) {
1583	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1584	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1585	entry = entry->next;	if (cfg->cfi->getEnv) {
1586	}	char *defTitle =
1587	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1588	}	if (defTitle) {
1589		int index = 0;
1590		if (isnumber(defTitle)) {
1591		index = atoi(defTitle);
1592		entry =
1593		findEntryByIndex(cfg,
1594		index);
1595		} else {
1596		entry =
1597		findEntryByTitle(cfg,
1598		defTitle,
1599		&index);
1600		}
1601		if (entry)
1602		cfg->defaultImage = index;
1603		}
1604		}
1605		} else if (cfi->defaultIsVariable) {
1606		if (defaultLine->numElements == 2) {
1607		char *value = defaultLine->elements[1].item + 8;
1608		while (*value && (*value == '"' ||
1609		*value == '\'' ||
1610		*value == ' ' ||
1611		*value == '\t'))
1612		value++;
1613		cfg->defaultImage = strtol(value, &end, 10);
1614		while (*end && (*end == '"' || *end == '\'' ||
1615		*end == ' ' || *end == '\t'))
1616		end++;
1617		if (*end)
1618		cfg->defaultImage = -1;
1619		} else if (defaultLine->numElements == 3) {
1620		char *value = defaultLine->elements[2].item;
1621		while (*value && (*value == '"' ||
1622		*value == '\'' ||
1623		*value == ' ' ||
1624		*value == '\t'))
1625		value++;
1626		cfg->defaultImage = strtol(value, &end, 10);
1627		while (*end && (*end == '"' || *end == '\'' ||
1628		*end == ' ' || *end == '\t'))
1629		end++;
1630		if (*end)
1631		cfg->defaultImage = -1;
1632		}
1633		} else if (cfi->defaultSupportSaved &&
1634		!strncmp(defaultLine->elements[1].item, "saved",
1635		5)) {
1636		cfg->defaultImage = DEFAULT_SAVED;
1637		} else if (cfi->defaultIsIndex) {
1638		cfg->defaultImage =
1639		strtol(defaultLine->elements[1].item, &end, 10);
1640		if (*end)
1641		cfg->defaultImage = -1;
1642		} else if (defaultLine->numElements >= 2) {
1643		int i = 0;
1644		while ((entry = findEntryByIndex(cfg, i))) {
1645		for (line = entry->lines; line;
1646		line = line->next)
1647		if (line->type == LT_TITLE)
1648		break;
1649
1650		if (!cfi->titleBracketed) {
1651		if (line && (line->numElements >= 2) &&
1652		!strcmp(defaultLine->elements[1].
1653		item,
1654		line->elements[1].item))
1655		break;
1656		} else if (line) {
1657		if (!strcmp
1658		(defaultLine->elements[1].item,
1659		extractTitle(cfg, line)))
1660		break;
1661		}
1662		i++;
1663		entry = NULL;
1664		}
1665
1666		if (entry) {
1667		cfg->defaultImage = i;
1668		} else {
1669		cfg->defaultImage = -1;
1670		}
1671		}
1672		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1673		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1674		if (defTitle) {
1675		int index = 0;
1676		if (isnumber(defTitle)) {
1677		index = atoi(defTitle);
1678		entry = findEntryByIndex(cfg, index);
1679		} else {
1680		entry = findEntryByTitle(cfg, defTitle, &index);
1681		}
1682		if (entry)
1683		cfg->defaultImage = index;
1684		}
1685		} else {
1686		cfg->defaultImage = 0;
1687		}
1688
1689		return cfg;
1690		}
1691
1692		static void writeDefault(FILE * out, char *indent,
1693		char *separator, struct grubConfig *cfg)
1694		{
1695		struct singleEntry *entry;
1696		struct singleLine *line;
1697		int i;
1698
1699		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1700		return;
1701
1702		if (cfg->defaultImage == DEFAULT_SAVED)
1703		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1704		else if (cfg->cfi->defaultIsSaved) {
1705		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1706		if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {
1707		char *title;
1708		entry = findEntryByIndex(cfg, cfg->defaultImage);
1709		line = getLineByType(LT_MENUENTRY, entry->lines);
1710		if (!line)
1711		line = getLineByType(LT_TITLE, entry->lines);
1712		if (line) {
1713		title = extractTitle(cfg, line);
1714		if (title)
1715		cfg->cfi->setEnv(cfg->cfi,
1716		"saved_entry", title);
1717		}
1718		}
1719		} else if (cfg->defaultImage > -1) {
1720		if (cfg->cfi->defaultIsIndex) {
1721		if (cfg->cfi->defaultIsVariable) {
1722		fprintf(out, "%sset default=\"%d\"\n", indent,
1723		cfg->defaultImage);
1724		} else {
1725		fprintf(out, "%sdefault%s%d\n", indent,
1726		separator, cfg->defaultImage);
1727		}
1728		} else {
1729		int image = cfg->defaultImage;
1730
1731		entry = cfg->entries;
1732		while (entry && entry->skip)
1733		entry = entry->next;
1734
1735		i = 0;
1736		while (entry && i < image) {
1737		entry = entry->next;
1738
1739		while (entry && entry->skip)
1740		entry = entry->next;
1741		i++;
1742		}
1743
1744		if (!entry)
1745		return;
1746
1747		line = getLineByType(LT_TITLE, entry->lines);
1748
1749		if (line && line->numElements >= 2)
1750		fprintf(out, "%sdefault%s%s\n", indent,
1751		separator, line->elements[1].item);
1752		else if (line && (line->numElements == 1)
1753		&& cfg->cfi->titleBracketed) {
1754		char *title = extractTitle(cfg, line);
1755		if (title) {
1756		fprintf(out, "%sdefault%s%s\n", indent,
1757		separator, title);
1758		free(title);
1759		}
1760		}
1761		}
1762		}
1763		}
1764
1765		static int writeConfig(struct grubConfig *cfg, char *outName,
1766		const char *prefix)
1767		{
1768		FILE *out;
1769		struct singleLine *line;
1770		struct singleEntry *entry;
1771		char *tmpOutName;
1772		int needs = MAIN_DEFAULT;
1773		struct stat sb;
1774		int i;
1775
1776		if (!strcmp(outName, "-")) {
1777		out = stdout;
1778		tmpOutName = NULL;
1779		} else {
1780		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1781		char *buf;
1782		int len = 256;
1783		int rc;
1784
1785		/* most likely the symlink is relative, so change our
1786		directory to the dir of the symlink */
1787		char *dir = strdupa(outName);
1788		rc = chdir(dirname(dir));
1789		do {
1790		buf = alloca(len + 1);
1791		rc = readlink(basename(outName), buf, len);
1792		if (rc == len)
1793		len += 256;
1794		} while (rc == len);
1795
1796		if (rc < 0) {
1797		fprintf(stderr,
1798		_
1799		("grubby: error readlink link %s: %s\n"),
1800		outName, strerror(errno));
1801		return 1;
1802		}
1803
1804		outName = buf;
1805		outName[rc] = '\0';
1806		}
1807
1808		tmpOutName = alloca(strlen(outName) + 2);
1809		sprintf(tmpOutName, "%s-", outName);
1810		out = fopen(tmpOutName, "w");
1811		if (!out) {
1812		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1813		tmpOutName, strerror(errno));
1814		return 1;
1815		}
1816
1817		if (!stat(outName, &sb)) {
1818		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1819		fprintf(stderr,
1820		_
1821		("grubby: error setting perms on %s: %s\n"),
1822		tmpOutName, strerror(errno));
1823		fclose(out);
1824		unlink(tmpOutName);
1825		return 1;
1826		}
1827		}
1828		}
1829
1830		line = cfg->theLines;
1831		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1832		while (line) {
1833		if (line->type == LT_SET_VARIABLE && defaultKw &&
1834		line->numElements == 3 &&
1835		!strcmp(line->elements[1].item, defaultKw->key) &&
1836		!is_special_grub2_variable(line->elements[2].item)) {
1837		writeDefault(out, line->indent,
1838		line->elements[0].indent, cfg);
1839		needs &= ~MAIN_DEFAULT;
1840		} else if (line->type == LT_DEFAULT) {
1841		writeDefault(out, line->indent,
1842		line->elements[0].indent, cfg);
1843		needs &= ~MAIN_DEFAULT;
1844		} else if (line->type == LT_FALLBACK) {
1845		if (cfg->fallbackImage > -1)
1846		fprintf(out, "%s%s%s%d\n", line->indent,
1847		line->elements[0].item,
1848		line->elements[0].indent,
1849		cfg->fallbackImage);
1850		} else {
1851		if (lineWrite(out, line, cfg->cfi) == -1) {
1852		fprintf(stderr,
1853		_("grubby: error writing %s: %s\n"),
1854		tmpOutName, strerror(errno));
1855		fclose(out);
1856		unlink(tmpOutName);
1857		return 1;
1858		}
1859		}
1860
1861		line = line->next;
1862		}
1863
1864		if (needs & MAIN_DEFAULT) {
1865		writeDefault(out, cfg->primaryIndent, "=", cfg);
1866		needs &= ~MAIN_DEFAULT;
1867		}
1868
1869		i = 0;
1870		while ((entry = findEntryByIndex(cfg, i++))) {
1871		if (entry->skip)
1872		continue;
1873
1874		line = entry->lines;
1875		while (line) {
1876		if (lineWrite(out, line, cfg->cfi) == -1) {
1877		fprintf(stderr,
1878		_("grubby: error writing %s: %s\n"),
1879		tmpOutName, strerror(errno));
1880		fclose(out);
1881		unlink(tmpOutName);
1882		return 1;
1883		}
1884		line = line->next;
1885		}
1886		}
1887
1888		if (tmpOutName) {
1889		if (rename(tmpOutName, outName)) {
1890		fprintf(stderr,
1891		_("grubby: error moving %s to %s: %s\n"),
1892		tmpOutName, outName, strerror(errno));
1893		unlink(outName);
1894		return 1;
1895		}
1896		}
1897
1898		return 0;
1899		}
1900
1901		static int numEntries(struct grubConfig *cfg)
1902		{
1903		int i = 0;
1904		struct singleEntry *entry;
1905
1906		entry = cfg->entries;
1907		while (entry) {
1908		if (!entry->skip)
1909		i++;
1910		entry = entry->next;
1911		}
1912		return i;
1913		}
1914
1915	static char *findDiskForRoot()	static char *findDiskForRoot()
1916	{	{
1917	int fd;	int fd;
1918	char buf[65536];	char buf[65536];
1919	char *devname;	char *devname;
1920	char *chptr;	char *chptr;
1921	int rc;	int rc;
1922
1923		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1924		fprintf(stderr, "grubby: failed to open %s: %s\n",
1925		_PATH_MOUNTED, strerror(errno));
1926		return NULL;
1927		}
1928
1929		rc = read(fd, buf, sizeof(buf) - 1);
1930		if (rc <= 0) {
1931		fprintf(stderr, "grubby: failed to read %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		close(fd);
1934		return NULL;
1935		}
1936		close(fd);
1937		buf[rc] = '\0';
1938		chptr = buf;
1939
1940	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;
	}
1941
1942	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1943	if (rc <= 0) {	devname = chptr;
1944	fprintf(stderr, "grubby: failed to read %s: %s\n",
1945	_PATH_MOUNTED, strerror(errno));	/*
1946	close(fd);	* The first column of a mtab entry is the device, but if the
1947	return NULL;	* entry is a special device it won't start with /, so move
1948	}	* on to the next line.
1949	close(fd);	*/
1950	buf[rc] = '\0';	if (*devname != '/') {
1951	chptr = buf;	chptr = strchr(chptr, '\n');
1952		if (chptr)
1953	while (chptr && chptr != buf+rc) {	chptr++;
1954	devname = chptr;	continue;
1955		}
1956	/*
1957	* The first column of a mtab entry is the device, but if the entry is a	/* Seek to the next space */
1958	* special device it won't start with /, so move on to the next line.	chptr = strchr(chptr, ' ');
1959	*/	if (!chptr) {
1960	if (*devname != '/') {	fprintf(stderr, "grubby: error parsing %s: %s\n",
1961	chptr = strchr(chptr, '\n');	_PATH_MOUNTED, strerror(errno));
1962	if (chptr)	return NULL;
1963	chptr++;	}
1964	continue;
1965	}	/*
1966		* The second column of a mtab entry is the mount point, we
1967	/* Seek to the next space */	* are looking for '/' obviously.
1968	chptr = strchr(chptr, ' ');	*/
1969	if (!chptr) {	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1970	fprintf(stderr, "grubby: error parsing %s: %s\n",	/* remember the last / entry in mtab */
1971	_PATH_MOUNTED, strerror(errno));	foundanswer = devname;
1972	return NULL;	}
1973	}
1974		/* Next line */
1975	/*	chptr = strchr(chptr, '\n');
1976	* The second column of a mtab entry is the mount point, we are looking	if (chptr)
1977	* for '/' obviously.	chptr++;
1978	*/	}
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/*
	* Move back 2, which is the first space after the device name, set
	* it to \0 so strdup will just get the devicename.
	*/
	chptr -= 2;
	*chptr = '\0';
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1979
1980	return NULL;	/* Return the last / entry found */
1981		if (foundanswer) {
1982		chptr = strchr(foundanswer, ' ');
1983		*chptr = '\0';
1984		return strdup(foundanswer);
1985		}
1986
1987		return NULL;
1988	}	}
1989
1990	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
1991	int i;	{
1992	struct singleLine * line;	int i;
1993		struct singleLine *line;
1994
1995		for (line = entry->lines; line; line = line->next) {
1996		log_message(f, "DBG: %s", line->indent);
1997		for (i = 0; i < line->numElements; i++) {
1998		/* Need to handle this, because we strip the quotes from
1999		* menuentry when read it. */
2000		if (line->type == LT_MENUENTRY && i == 1) {
2001		if (!isquote(*line->elements[i].item))
2002		log_message(f, "\'%s\'",
2003		line->elements[i].item);
2004		else
2005		log_message(f, "%s",
2006		line->elements[i].item);
2007		log_message(f, "%s", line->elements[i].indent);
2008
2009	for (line = entry->lines; line; line = line->next) {	continue;
2010	fprintf(stderr, "DBG: %s", line->indent);	}
2011	for (i = 0; i < line->numElements; i++) {
2012	fprintf(stderr, "%s%s",	log_message(f, "%s%s",
2013	line->elements[i].item, line->elements[i].indent);	line->elements[i].item,
2014		line->elements[i].indent);
2015		}
2016		log_message(f, "\n");
2017	}	}
	fprintf(stderr, "\n");
	}
2018	}	}
2019
2020	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2021		...)
2022	{	{
2023	va_list argp;	static int once;
2024		va_list argp, argq;
2025
2026	if (!debug)	va_start(argp, fmt);
	return;
2027
2028	va_start(argp, fmt);	va_copy(argq, argp);
2029	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2030	vfprintf(stderr, fmt, argp);	log_time(NULL);
2031	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2032	va_end(argp);	}
2033		log_message(NULL, "DBG: Image entry %s: ",
2034		okay ? "succeeded" : "failed");
2035		log_vmessage(NULL, fmt, argq);
2036
2037		printEntry(entry, NULL);
2038		va_end(argq);
2039
2040		if (!debug) {
2041		once = 1;
2042		va_end(argp);
2043		return;
2044		}
2045
2046		if (okay) {
2047		va_end(argp);
2048		return;
2049		}
2050
2051		if (!once)
2052		log_message(stderr, "DBG: command line: %s\n",
2053		saved_command_line);
2054		once = 1;
2055		fprintf(stderr, "DBG: Image entry failed: ");
2056		vfprintf(stderr, fmt, argp);
2057		printEntry(entry, stderr);
2058		va_end(argp);
2059	}	}
2060
2061	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1457  static int endswith(const char *s, char	Line 2064  static int endswith(const char *s, char
2064	{	{
2065	int slen;	int slen;
2066
2067	if (!s && !s[0])	if (!s || !s[0])
2068	return 0;	return 0;
2069	slen = strlen(s) - 1;	slen = strlen(s) - 1;
2070
2071	return s[slen] == c;	return s[slen] == c;
2072	}	}
2073
2074	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2075	int skipRemoved, int flags) {	int skipRemoved, int flags)
2076	struct singleLine * line;	{
2077	char * fullName;	struct singleLine *line;
2078	int i;	char *fullName;
2079	char * dev;	int i;
2080	char * rootspec;	char *dev;
2081	char * rootdev;	char *rootspec;
2082		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2083
2084	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2085	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2086	notSuitablePrintf(entry, "no line found\n");	return 0;
2087	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2088
2089	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2090		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2091		entry->lines);
2092		if (!line) {
2093		notSuitablePrintf(entry, 0, "no line found\n");
2094		return 0;
2095		}
2096		if (line->numElements < 2) {
2097		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2098		line->numElements);
2099		return 0;
2100		}
2101
2102	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2103	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2104	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2105	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);
2106
2107	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2108	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2109		rootspec = getRootSpecifier(line->elements[1].item);
2110		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2111		int hasslash = endswith(bootPrefix, '/') ||
2112		beginswith(line->elements[1].item + rootspec_offset, '/');
2113		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2114		line->elements[1].item + rootspec_offset);
2115		if (access(fullName, R_OK)) {
2116		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2117		return 0;
2118		}
2119		for (i = 2; i < line->numElements; i++)
2120		if (!strncasecmp(line->elements[i].item, "root=", 5))
2121		break;
2122		if (i < line->numElements) {
2123		dev = line->elements[i].item + 5;
2124	} else {	} else {
2125	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2126	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2127	*/
2128	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2129		dev = line->elements[1].item;
2130	/* failed to find one */	} else {
2131	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2132	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2133	return 0;	* for the args, so check that too.
2134	}	*/
2135		line =
2136	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2137	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2138	if (i < line->numElements)
2139	dev = line->elements[i].item + 5;	/* failed to find one */
2140	else {	if (!line) {
2141	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2142	/* it failed too...  can't find root= */	return 0;
2143	return 0;	}
2144	}
2145		for (i = 1; i < line->numElements; i++)
2146		if (!strncasecmp
2147		(line->elements[i].item, "root=", 5))
2148		break;
2149		if (i < line->numElements)
2150		dev = line->elements[i].item + 5;
2151		else {
2152		notSuitablePrintf(entry, 0,
2153		"no root= entry found\n");
2154		/* it failed too...  can't find root= */
2155		return 0;
2156		}
2157		}
2158	}	}
	}
2159
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2160	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2161		if (!getpathbyspec(dev)) {
2162		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2163		dev);
2164		return 0;
2165		} else
2166		dev = getpathbyspec(dev);
2167
2168	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2169	if (!rootdev) {	if (!rootdev) {
2170	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2171	return 0;	return 0;
2172	}	}
2173
2174	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2175	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2176	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2177	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2178	return 0;	free(rootdev);
2179	}	return 0;
2180		}
2181
2182	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2183	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2184	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2185	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2186	return 0;	free(rootdev);
2187	}	return 0;
2188		}
2189
2190	free(rootdev);	free(rootdev);
2191		notSuitablePrintf(entry, 1, "\n");
2192
2193	return 1;	return 1;
2194	}	}
2195
2196	/* 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
2197	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2198	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2199	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2200	int * index) {	int *index)
2201	struct singleEntry * entry = NULL;	{
2202	struct singleLine * line;	struct singleEntry *entry = NULL;
2203	int i;	struct singleLine *line;
2204	char * chptr;	int i;
2205	char * rootspec = NULL;	char *chptr;
2206	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2207		enum lineType_e checkType = LT_KERNEL;
2208	if (isdigit(*kernel)) {
2209	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2210		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2211	i = 0;
2212	indexVars[i] = strtol(kernel, &chptr, 10);	i = 0;
2213	while (*chptr == ',') {	indexVars[i] = strtol(kernel, &chptr, 10);
2214	i++;	while (*chptr == ',') {
2215	kernel = chptr + 1;	i++;
2216	indexVars[i] = strtol(kernel, &chptr, 10);	kernel = chptr + 1;
2217	}	indexVars[i] = strtol(kernel, &chptr, 10);
2218		}
2219
2220	if (*chptr) {	if (*chptr) {
2221	/* can't parse it, bail */	/* can't parse it, bail */
2222	return NULL;	return NULL;
2223	}	}
2224
2225	indexVars[i + 1] = -1;	indexVars[i + 1] = -1;
	i = 0;
	if (index) {
	while (i < *index) i++;
	if (indexVars[i] == -1) return NULL;
	}
2226
2227	entry = findEntryByIndex(config, indexVars[i]);	i = 0;
2228	if (!entry) return NULL;	if (index) {
2229		while (i < *index) {
2230		i++;
2231		if (indexVars[i] == -1)
2232		return NULL;
2233		}
2234		}
2235
2236	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	entry = findEntryByIndex(config, indexVars[i]);
2237	if (!line) return NULL;	if (!entry)
2238		return NULL;
2239
2240		line =
2241		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2242		LT_KERNEL_16, entry->lines);
2243		if (!line)
2244		return NULL;
2245
2246		if (index)
2247		*index = indexVars[i];
2248		return entry;
2249		}
2250
2251		if (!strcmp(kernel, "DEFAULT")) {
2252		if (index && *index > config->defaultImage) {
2253		entry = NULL;
2254		} else {
2255		entry = findEntryByIndex(config, config->defaultImage);
2256		if (entry && entry->skip)
2257		entry = NULL;
2258		else if (index)
2259		*index = config->defaultImage;
2260		}
2261		} else if (!strcmp(kernel, "ALL")) {
2262		if (index)
2263		i = *index;
2264		else
2265		i = 0;
2266
2267		while ((entry = findEntryByIndex(config, i))) {
2268		if (!entry->skip)
2269		break;
2270		i++;
2271		}
2272
2273	if (index) *index = indexVars[i];	if (entry && index)
2274	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2275	} else {	} else {
2276	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2277	if (entry && entry->skip)	i = *index;
2278	entry = NULL;	else
2279	else if (index)	i = 0;
2280	*index = config->defaultImage;
2281	}	if (!strncmp(kernel, "TITLE=", 6)) {
2282	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2283	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2284	i = *index;	kernel += 6;
2285	else	}
	i = 0;
2286
2287	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2288	if (!entry->skip) break;	entry = entry->next, i++) {
2289	i++;	if (entry->skip)
2290	}	continue;
2291
2292		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2293		checkType, kernel, entry);
2294
2295		/* check all the lines matching checkType */
2296		for (line = entry->lines; line; line = line->next) {
2297		enum lineType_e ct = checkType;
2298		if (entry->multiboot && checkType == LT_KERNEL)
2299		ct = LT_KERNEL | LT_KERNEL_EFI |
2300		LT_MBMODULE | LT_HYPER |
2301		LT_KERNEL_16;
2302		else if (checkType & LT_KERNEL)
2303		ct = checkType | LT_KERNEL_EFI |
2304		LT_KERNEL_16;
2305		line = getLineByType(ct, line);
2306		if (!line)
2307		break; /* not found in this entry */
2308
2309		if (line && line->type != LT_MENUENTRY &&
2310		line->numElements >= 2) {
2311		rootspec =
2312		getRootSpecifier(line->elements[1].
2313		item);
2314		if (!strcmp
2315		(line->elements[1].item +
2316		((rootspec !=
2317		NULL) ? strlen(rootspec) : 0),
2318		kernel + strlen(prefix)))
2319		break;
2320		}
2321		if (line->type == LT_MENUENTRY &&
2322		!strcmp(line->elements[1].item, kernel))
2323		break;
2324		}
2325
2326	if (entry && index)	/* make sure this entry has a kernel identifier; this skips
2327	*index = i;	* non-Linux boot entries (could find netbsd etc, though, which is
2328	} else {	* unfortunate)
2329	if (index)	*/
2330	i = *index;	if (line
2331	else	&& getLineByType(LT_KERNEL | LT_HYPER |
2332	i = 0;	LT_KERNEL_EFI | LT_KERNEL_16,
2333		entry->lines))
2334		break; /* found 'im! */
2335		}
2336
2337	if (!strncmp(kernel, "TITLE=", 6)) {	if (index)
2338	prefix = "";	*index = i;
	checkType = LT_TITLE;
	kernel += 6;
2339	}	}
2340
2341	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	return entry;
2342	if (entry->skip) continue;	}
	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);
	/* check all the lines matching checkType */
	for (line = entry->lines; line; line = line->next) {
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
2343
2344	if (line && line->numElements >= 2) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2345	rootspec = getRootSpecifier(line->elements[1].item);	int *index)
2346	if (!strcmp(line->elements[1].item +	{
2347	((rootspec != NULL) ? strlen(rootspec) : 0),	struct singleEntry *entry;
2348	kernel + strlen(prefix)))	struct singleLine *line;
2349		int i;
2350		char *newtitle;
2351
2352		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2353		if (index && i < *index)
2354		continue;
2355		line = getLineByType(LT_TITLE, entry->lines);
2356		if (!line)
2357		line = getLineByType(LT_MENUENTRY, entry->lines);
2358		if (!line)
2359		continue;
2360		newtitle = grub2ExtractTitle(line);
2361		if (!newtitle)
2362		continue;
2363		if (!strcmp(title, newtitle))
2364	break;	break;
	}
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2365	}	}
2366
2367	if (index) *index = i;	if (!entry)
2368	}	return NULL;
2369
2370	return entry;	if (index)
2371		*index = i;
2372		return entry;
2373	}	}
2374
2375	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2376	struct singleEntry * entry;	{
2377		struct singleEntry *entry;
2378
2379	entry = cfg->entries;	entry = cfg->entries;
2380	while (index && entry) {	while (index && entry) {
2381	entry = entry->next;	entry = entry->next;
2382	index--;	index--;
2383	}	}
2384
2385	return entry;	return entry;
2386	}	}
2387
2388	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1702  struct singleEntry * findEntryByIndex(st	Line 2390  struct singleEntry * findEntryByIndex(st
2390	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2391	* 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,
2392	* bail. */	* bail. */
2393	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2394	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2395	struct singleEntry * entry, * entry2;	{
2396	int index;	struct singleEntry *entry, *entry2;
2397		int index;
2398	if (cfg->defaultImage > -1) {
2399	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2400	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2401	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2402	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2403		if (defTitle) {
2404		int index = 0;
2405		if (isnumber(defTitle)) {
2406		index = atoi(defTitle);
2407		entry = findEntryByIndex(cfg, index);
2408		} else {
2409		entry =
2410		findEntryByTitle(cfg, defTitle,
2411		&index);
2412		}
2413		if (entry
2414		&& suitableImage(entry, prefix, skipRemoved,
2415		flags)) {
2416		cfg->defaultImage = index;
2417		if (indexPtr)
2418		*indexPtr = index;
2419		return entry;
2420		}
2421		}
2422		}
2423		} else if (cfg->defaultImage > -1) {
2424		entry = findEntryByIndex(cfg, cfg->defaultImage);
2425		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2426		if (indexPtr)
2427		*indexPtr = cfg->defaultImage;
2428		return entry;
2429		}
2430	}	}
	}
2431
2432	index = 0;	index = 0;
2433	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2434	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2435	int j;	int j;
2436	for (j = 0; j < index; j++) {	for (j = 0; j < index; j++) {
2437	entry2 = findEntryByIndex(cfg, j);	entry2 = findEntryByIndex(cfg, j);
2438	if (entry2->skip) index--;	if (entry2->skip)
2439	}	index--;
2440	if (indexPtr) *indexPtr = index;	}
2441		if (indexPtr)
2442		*indexPtr = index;
2443
2444	return entry;	return entry;
2445	}	}
2446
2447	index++;	index++;
2448	}	}
2449
2450	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2451		_("grubby fatal error: unable to find a suitable template\n"));
2452
2453	return NULL;	return NULL;
2454	}	}
2455
2456	char * findBootPrefix(void) {	char *findBootPrefix(void)
2457	struct stat sb, sb2;	{
2458		struct stat sb, sb2;
2459
2460	stat("/", &sb);	stat("/", &sb);
2461	#ifdef __ia64__	#ifdef __ia64__
2462	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2463	#else	#else
2464	stat("/boot", &sb2);	stat("/boot", &sb2);
2465	#endif	#endif
2466
2467	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2468	return strdup("");	return strdup("");
2469
2470	#ifdef __ia64__	#ifdef __ia64__
2471	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2472	#else	#else
2473	return strdup("/boot");	return strdup("/boot");
2474	#endif	#endif
2475	}	}
2476
2477	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2478	const char * prefix) {	const char *prefix)
2479	struct singleEntry * entry;	{
2480		struct singleEntry *entry;
	if (!image) return;
	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
	entry->skip = 1;
	}
	void setDefaultImage(struct grubConfig * config, int hasNew,
	const char * defaultKernelPath, int newIsDefault,
	const char * prefix, int flags) {
	struct singleEntry * entry, * entry2, * newDefault;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if (config->defaultImage == DEFAULT_SAVED)
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2481
2482	if (entry && !entry->skip) {	if (!image)
2483	/* we can preserve the default */	return;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
	}
2484
2485	void setFallbackImage(struct grubConfig * config, int hasNew) {	/* check and see if we're removing the default image */
2486	struct singleEntry * entry, * entry2;	if (isdigit(*image)) {
2487	int j;	entry = findEntryByPath(cfg, image, prefix, NULL);
2488		if (entry)
2489	if (config->fallbackImage == -1) return;	entry->skip = 1;
2490		return;
2491	entry = findEntryByIndex(config, config->fallbackImage);	}
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2492
2493	if (hasNew)	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2494	config->fallbackImage++;	entry->skip = 1;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
2495	}	}
2496
2497	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	void setDefaultImage(struct grubConfig *config, int hasNew,
2498	struct singleLine * line;	const char *defaultKernelPath, int newIsDefault,
2499	char * root = NULL;	const char *prefix, int flags, int index)
2500	int i;	{
2501		struct singleEntry *entry, *entry2, *newDefault;
2502	printf("index=%d\n", index);	int i, j;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
	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);
	}
2503
2504	i++;	if (newIsDefault) {
2505		config->defaultImage = 0;
2506		return;
2507		} else if ((index >= 0) && config->cfi->defaultIsIndex) {
2508		if (findEntryByIndex(config, index))
2509		config->defaultImage = index;
2510		else
2511		config->defaultImage = -1;
2512		return;
2513		} else if (defaultKernelPath) {
2514		i = 0;
2515		if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
2516		config->defaultImage = i;
2517		} else {
2518		config->defaultImage = -1;
2519		return;
2520		}
2521	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2522
2523	printf("args=\"");	/* defaultImage now points to what we'd like to use, but before any
2524	i = 1;	* order changes */
2525	while (i < line->numElements) {	if ((config->defaultImage == DEFAULT_SAVED) ||
2526	if (!strncmp(line->elements[i].item, "root=", 5)) {	(config->defaultImage == DEFAULT_SAVED_GRUB2))
2527	root = line->elements[i].item + 5;	/* default is set to saved, we don't want to change it */
2528	} else {	return;
2529	s = line->elements[i].item;
2530		if (config->defaultImage > -1)
2531		entry = findEntryByIndex(config, config->defaultImage);
2532		else
2533		entry = NULL;
2534
2535	printf("%s%s", s, line->elements[i].indent);	if (entry && !entry->skip) {
2536		/* we can preserve the default */
2537		if (hasNew)
2538		config->defaultImage++;
2539
2540		/* count the number of entries erased before this one */
2541		for (j = 0; j < config->defaultImage; j++) {
2542		entry2 = findEntryByIndex(config, j);
2543		if (entry2->skip)
2544		config->defaultImage--;
2545	}	}
2546		} else if (hasNew) {
2547		config->defaultImage = 0;
2548		} else {
2549		/* Either we just erased the default (or the default line was
2550		* bad to begin with) and didn't put a new one in. We'll use
2551		* the first valid image. */
2552		newDefault =
2553		findTemplate(config, prefix, &config->defaultImage, 1,
2554		flags);
2555		if (!newDefault)
2556		config->defaultImage = -1;
2557		}
2558		}
2559
2560	i++;	void setFallbackImage(struct grubConfig *config, int hasNew)
2561	}	{
2562		struct singleEntry *entry, *entry2;
2563		int j;
2564
2565	s = line->elements[i - 1].indent;	if (config->fallbackImage == -1)
2566	printf("\"\n");	return;
2567
2568		entry = findEntryByIndex(config, config->fallbackImage);
2569		if (!entry || entry->skip) {
2570		config->fallbackImage = -1;
2571		return;
2572	}	}
	}
2573
2574	if (!root) {	if (hasNew)
2575	line = getLineByType(LT_ROOT, entry->lines);	config->fallbackImage++;
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2576
2577	if (root) {	/* count the number of entries erased before this one */
2578	char * s = alloca(strlen(root) + 1);	for (j = 0; j < config->fallbackImage; j++) {
2579		entry2 = findEntryByIndex(config, j);
2580	strcpy(s, root);	if (entry2->skip)
2581	if (s[strlen(s) - 1] == '"')	config->fallbackImage--;
2582	s[strlen(s) - 1] = '\0';	}
2583	/* make sure the root doesn't have a trailing " */	}
	printf("root=%s\n", s);
	}
2584
2585	line = getLineByType(LT_INITRD, entry->lines);	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2586		{
2587		struct singleLine *line;
2588		char *root = NULL;
2589		int i;
2590		int j;
2591
2592	if (line && line->numElements >= 2) {	printf("index=%d\n", index);
	printf("initrd=%s", prefix);
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
	}
2593
2594	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	line =
2595	FILE * in;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2596	char buf[1024];	entry->lines);
2597	char * chptr;	if (!line) {
2598	char * start;	printf("non linux entry\n");
2599	char * param;	return;
2600		}
	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);
	}
2601
2602	fclose(in);	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2603		printf("kernel=%s\n", line->elements[1].item);
2604		else
2605		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2606
2607	return 0;	if (line->numElements >= 3) {
2608	}	printf("args=\"");
2609		i = 2;
2610		while (i < line->numElements) {
2611		if (!strncmp(line->elements[i].item, "root=", 5)) {
2612		root = line->elements[i].item + 5;
2613		} else {
2614		printf("%s%s", line->elements[i].item,
2615		line->elements[i].indent);
2616		}
2617
2618	void dumpSysconfigGrub(void) {	i++;
2619	char * boot;	}
2620	int lba;	printf("\"\n");
2621		} else {
2622	if (!parseSysconfigGrub(&lba, &boot)) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2623	if (lba) printf("lba\n");	if (line) {
2624	if (boot) printf("boot=%s\n", boot);	char *s;
2625	}
2626	}	printf("args=\"");
2627		i = 1;
2628	int displayInfo(struct grubConfig * config, char * kernel,	while (i < line->numElements) {
2629	const char * prefix) {	if (!strncmp
2630	int i = 0;	(line->elements[i].item, "root=", 5)) {
2631	struct singleEntry * entry;	root = line->elements[i].item + 5;
2632	struct singleLine * line;	} else {
2633		s = line->elements[i].item;
	entry = findEntryByPath(config, kernel, prefix, &i);
	if (!entry) {
	fprintf(stderr, _("grubby: kernel not found\n"));
	return 1;
	}
2634
2635	/* this is a horrible hack to support /etc/conf.d/grub; there must	printf("%s%s", s,
2636	be a better way */	line->elements[i].indent);
2637	if (config->cfi == &grubConfigType) {	}
	dumpSysconfigGrub();
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2638
2639	line = getLineByType(LT_LBA, config->theLines);	i++;
2640	if (line) printf("lba\n");	}
	}
2641
2642	displayEntry(entry, prefix, i);	s = line->elements[i - 1].indent;
2643		printf("\"\n");
2644		}
2645		}
2646
2647	i++;	if (!root) {
2648	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	line = getLineByType(LT_ROOT, entry->lines);
2649	displayEntry(entry, prefix, i);	if (line && line->numElements >= 2)
2650	i++;	root = line->elements[1].item;
2651	}	}
2652
2653	return 0;	if (root) {
2654	}	char *s = alloca(strlen(root) + 1);
2655
2656	struct singleLine * addLineTmpl(struct singleEntry * entry,	strcpy(s, root);
2657	struct singleLine * tmplLine,	if (s[strlen(s) - 1] == '"')
2658	struct singleLine * prevLine,	s[strlen(s) - 1] = '\0';
2659	const char * val,	/* make sure the root doesn't have a trailing " */
2660	struct configFileInfo * cfi)	printf("root=%s\n", s);
	{
	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);
	}
2661	}	}
	}
2662
2663	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	line =
2664	newLine->elements[0].item : "");	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2665		entry->lines);
2666
2667	if (!entry->lines) {	if (line && line->numElements >= 2) {
2668	/* first one on the list */	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2669	entry->lines = newLine;	printf("initrd=");
2670	} else if (prevLine) {	else
2671	/* add after prevLine */	printf("initrd=%s", prefix);
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2672
2673	return newLine;	for (i = 1; i < line->numElements; i++)
2674	}	printf("%s%s", line->elements[i].item,
2675		line->elements[i].indent);
2676		printf("\n");
2677		}
2678
2679	/* val may be NULL */	line = getLineByType(LT_TITLE, entry->lines);
2680	struct singleLine *  addLine(struct singleEntry * entry,	if (line) {
2681	struct configFileInfo * cfi,	printf("title=%s\n", line->elements[1].item);
2682	enum lineType_e type, char * defaultIndent,	} else {
2683	const char * val) {	char *title;
2684	struct singleLine * line, * prev;	line = getLineByType(LT_MENUENTRY, entry->lines);
2685	struct keywordTypes * kw;	if (line) {
2686	struct singleLine tmpl;	title = grub2ExtractTitle(line);
2687		if (title)
2688	/* NB: This function shouldn't allocate items on the heap, rather on the	printf("title=%s\n", title);
2689	* 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 = "";
2690	}	}
	}
2691
2692	/* The last non-empty line gives us the indention to us and the line	for (j = 0, line = entry->lines; line; line = line->next) {
2693	to insert after. Note that comments are considered empty lines, which	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2694	may not be ideal? If there are no lines or we are looking at the	if (!strncmp
2695	first line, we use defaultIndent (the first line is normally indented	(prefix, line->elements[1].item, strlen(prefix)))
2696	differently from the rest) */	printf("mbmodule%d=", j);
2697	for (line = entry->lines, prev = NULL; line; line = line->next) {	else
2698	if (line->numElements) prev = line;	printf("mbmodule%d=%s", j, prefix);
2699	/* fall back on the last line if prev isn't otherwise set */
2700	if (!line->next && !prev) prev = line;	for (i = 1; i < line->numElements; i++)
2701	}	printf("%s%s", line->elements[i].item,
2702		line->elements[i].indent);
2703		printf("\n");
2704		j++;
2705		}
2706		}
2707		}
2708
2709	struct singleLine *menuEntry;	int isSuseSystem(void)
2710	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	{
2711	if (tmpl.type == LT_ENTRY_END) {	const char *path;
2712	if (menuEntry)	const static char default_path[] = "/etc/SuSE-release";
2713	tmpl.indent = menuEntry->indent;
2714	else	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2715	tmpl.indent = defaultIndent ?: "";	path = default_path;
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
2716
2717	return addLineTmpl(entry, &tmpl, prev, val, cfi);	if (!access(path, R_OK))
2718		return 1;
2719		return 0;
2720	}	}
2721
2722	void removeLine(struct singleEntry * entry, struct singleLine * line) {	int isSuseGrubConf(const char *path)
2723	struct singleLine * prev;	{
2724	int i;	FILE *grubConf;
2725		char *line = NULL;
2726		size_t len = 0, res = 0;
2727
2728		grubConf = fopen(path, "r");
2729		if (!grubConf) {
2730		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2731		path);
2732		return 0;
2733		}
2734
2735	for (i = 0; i < line->numElements; i++) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2736	free(line->elements[i].item);	if (!strncmp(line, "setup", 5)) {
2737	free(line->elements[i].indent);	fclose(grubConf);
2738	}	free(line);
2739	free(line->elements);	return 1;
2740	free(line->indent);	}
2741		}
2742
2743	if (line == entry->lines) {	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2744	entry->lines = line->next;	path);
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2745
2746	free(line);	fclose(grubConf);
2747		free(line);
2748		return 0;
2749	}	}
2750
2751	static int isquote(char q)	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2752	{	{
2753	if (q == '\'' || q == '\"')	FILE *grubConf;
2754	return 1;	char *line = NULL;
2755	return 0;	size_t res = 0, len = 0;
	}
2756
2757	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	if (!path)
2758	{	return 1;
2759	struct singleLine newLine = {	if (!lbaPtr)
2760	.indent = tmplLine->indent,	return 1;
	.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;
	}
2761
2762	line->elements = realloc(line->elements, (line->numElements + 1) *	grubConf = fopen(path, "r");
2763	sizeof(*line->elements));	if (!grubConf)
2764	memmove(&line->elements[insertHere+1],	return 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] = ' ';
	}
2765
2766	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	while ((res = getline(&line, &len, grubConf)) != -1) {
2767	/* move the end-of-line forward */	if (line[res - 1] == '\n')
2768	line->elements[insertHere].indent =	line[res - 1] = '\0';
2769	line->elements[insertHere-1].indent;	else if (len > res)
2770	line->elements[insertHere-1].indent = strdup(indent);	line[res] = '\0';
2771	} else {	else {
2772	line->elements[insertHere].indent = strdup(indent);	line = realloc(line, res + 1);
2773	}	line[res] = '\0';
2774		}
2775
2776	line->numElements++;	if (!strncmp(line, "setup", 5)) {
2777		if (strstr(line, "--force-lba")) {
2778		*lbaPtr = 1;
2779		} else {
2780		*lbaPtr = 0;
2781		}
2782		dbgPrintf("lba: %i\n", *lbaPtr);
2783		break;
2784		}
2785		}
2786
2787	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(line);
2788	line->elements[0].item,	fclose(grubConf);
2789	line->elements[insertHere].item,	return 0;
	line->elements[insertHere].indent,
	insertHere);
2790	}	}
2791
2792	static void removeElement(struct singleLine * line, int removeHere) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2793	int i;	{
2794		FILE *grubConf;
2795		char *line = NULL;
2796		size_t res = 0, len = 0;
2797		char *lastParamPtr = NULL;
2798		char *secLastParamPtr = NULL;
2799		char installDeviceNumber = '\0';
2800		char *bounds = NULL;
2801
2802	/* sanity check */	if (!path)
2803	if (removeHere >= line->numElements) return;	return 1;
2804		if (!devicePtr)
2805		return 1;
2806
2807	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	grubConf = fopen(path, "r");
2808	removeHere, line->elements[removeHere].item);	if (!grubConf)
2809		return 1;
2810
2811	free(line->elements[removeHere].item);	while ((res = getline(&line, &len, grubConf)) != -1) {
2812		if (strncmp(line, "setup", 5))
2813		continue;
2814
2815		if (line[res - 1] == '\n')
2816		line[res - 1] = '\0';
2817		else if (len > res)
2818		line[res] = '\0';
2819		else {
2820		line = realloc(line, res + 1);
2821		line[res] = '\0';
2822		}
2823
2824	if (removeHere > 1) {	lastParamPtr = bounds = line + res;
	/* previous argument gets this argument's post-indentation */
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2825
2826	/* now collapse the array, but don't bother to realloc smaller */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2827	for (i = removeHere; i < line->numElements - 1; i++)	while (!isspace(*lastParamPtr))
2828	line->elements[i] = line->elements[i + 1];	lastParamPtr--;
2829		lastParamPtr++;
2830	line->numElements--;
2831	}	secLastParamPtr = lastParamPtr - 2;
2832		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2833	int argMatch(const char * one, const char * two) {
2834	char * first, * second;	if (lastParamPtr + 3 > bounds) {
2835	char * chptr;	dbgPrintf("lastParamPtr going over boundary");
2836		fclose(grubConf);
2837	first = strcpy(alloca(strlen(one) + 1), one);	free(line);
2838	second = strcpy(alloca(strlen(two) + 1), two);	return 1;
2839		}
2840	chptr = strchr(first, '=');	if (!strncmp(lastParamPtr, "(hd", 3))
2841	if (chptr) *chptr = '\0';	lastParamPtr += 3;
2842		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2843	chptr = strchr(second, '=');
2844	if (chptr) *chptr = '\0';	/*
2845		* Second last parameter will decide wether last parameter is
2846	return strcmp(first, second);	* an IMAGE_DEVICE or INSTALL_DEVICE
2847	}	*/
2848		while (!isspace(*secLastParamPtr))
2849	int updateActualImage(struct grubConfig * cfg, const char * image,	secLastParamPtr--;
2850	const char * prefix, const char * addArgs,	secLastParamPtr++;
2851	const char * removeArgs, int multibootArgs) {
2852	struct singleEntry * entry;	if (secLastParamPtr + 3 > bounds) {
2853	struct singleLine * line, * rootLine;	dbgPrintf("secLastParamPtr going over boundary");
2854	int index = 0;	fclose(grubConf);
2855	int i, k;	free(line);
2856	const char ** newArgs, ** oldArgs;	return 1;
2857	const char ** arg;	}
2858	int useKernelArgs, useRoot;	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2859	int firstElement;	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2860	int *usedElements;	secLastParamPtr += 3;
2861	int doreplace;	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2862		installDeviceNumber = *secLastParamPtr;
2863	if (!image) return 0;	} else {
2864		installDeviceNumber = *lastParamPtr;
2865	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;
	}
	}
2866
2867	if (!removeArgs) {	*devicePtr = malloc(6);
2868	oldArgs = malloc(sizeof(*oldArgs));	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2869	*oldArgs = NULL;	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2870	} else {	fclose(grubConf);
2871	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	free(line);
2872	fprintf(stderr,	return 0;
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2873	}	}
	}
2874
2875		free(line);
2876		fclose(grubConf);
2877		return 1;
2878		}
2879
2880	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2881	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	{
2882		FILE *deviceMap;
2883		char *line = NULL;
2884		size_t res = 0, len = 0;
2885		char *devicePtr;
2886		char *bounds = NULL;
2887		const char *path;
2888		const static char default_path[] = "/boot/grub/device.map";
2889
2890	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	if (!device)
2891	&& !multibootArgs);	return 1;
2892		if (!bootPtr)
2893		return 1;
2894
2895	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2896		path = default_path;
2897
2898	if (multibootArgs && !entry->multiboot)	dbgPrintf("opening grub device.map file from: %s\n", path);
2899	continue;	deviceMap = fopen(path, "r");
2900		if (!deviceMap)
2901		return 1;
2902
2903	/* Determine where to put the args.  If this config supports	while ((res = getline(&line, &len, deviceMap)) != -1) {
2904	* LT_KERNELARGS, use that.  Otherwise use	if (!strncmp(line, "#", 1))
2905	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	continue;
2906	*/
2907	if (useKernelArgs) {	if (line[res - 1] == '\n')
2908	line = getLineByType(LT_KERNELARGS, entry->lines);	line[res - 1] = '\0';
2909	if (!line) {	else if (len > res)
2910	/* no LT_KERNELARGS, need to add it */	line[res] = '\0';
2911	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	else {
2912	cfg->secondaryIndent, NULL);	line = realloc(line, res + 1);
2913	}	line[res] = '\0';
2914	firstElement = 1;	}
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
	}
2915
2916	/* handle the elilo case which does:	devicePtr = line;
2917	*   append="hypervisor args -- kernel args"	bounds = line + res;
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
2918
2919	if (i < line->numElements && doreplace) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2920	/* direct replacement */	devicePtr++;
2921	free(line->elements[i].item);	dbgPrintf("device: %s\n", devicePtr);
2922	line->elements[i].item = strdup(*arg);
2923		if (!strncmp(devicePtr, device, strlen(device))) {
2924		devicePtr += strlen(device);
2925		while (isspace(*devicePtr)
2926		&& ((devicePtr + 1) <= bounds))
2927		devicePtr++;
2928
2929	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	*bootPtr = strdup(devicePtr);
2930	/* root= replacement */	break;
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
2931	}	}
	}
	else {
	/* insert/append */
	insertElement(line, *arg, i, cfg->cfi);
	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);
2932	}	}
	}
2933
2934	free(newArgs);	free(line);
2935	free(oldArgs);	fclose(deviceMap);
2936		return 0;
2937		}
2938
2939		int suseGrubConfGetBoot(const char *path, char **bootPtr)
2940		{
2941		char *grubDevice;
2942
2943	return 0;	if (suseGrubConfGetInstallDevice(path, &grubDevice))
2944		dbgPrintf("error looking for grub installation device\n");
2945		else
2946		dbgPrintf("grubby installation device: %s\n", grubDevice);
2947
2948		if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
2949		dbgPrintf("error looking for grub boot device\n");
2950		else
2951		dbgPrintf("grubby boot device: %s\n", *bootPtr);
2952
2953		free(grubDevice);
2954		return 0;
2955	}	}
2956
2957	int updateImage(struct grubConfig * cfg, const char * image,	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
2958	const char * prefix, const char * addArgs,	{
2959	const char * removeArgs,	/*
2960	const char * addMBArgs, const char * removeMBArgs) {	* This SuSE grub configuration file at this location is not your
2961	int rc = 0;	* average grub configuration file, but instead the grub commands
2962		* used to setup grub on that system.
2963	if (!image) return rc;	*/
2964		const char *path;
2965	/* update the main args first... */	const static char default_path[] = "/etc/grub.conf";
2966	if (addArgs || removeArgs)
2967	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
2968	if (rc) return rc;	path = default_path;
2969
2970	/* and now any multiboot args */	if (!isSuseGrubConf(path))
	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)
2971	return 1;	return 1;
2972
2973		if (lbaPtr) {
2974		*lbaPtr = 0;
2975		if (suseGrubConfGetLba(path, lbaPtr))
2976		return 1;
2977	}	}
2978
2979	break;	if (bootPtr) {
2980	}	*bootPtr = NULL;
2981		suseGrubConfGetBoot(path, bootPtr);
2982		}
2983
2984	return 0;	return 0;
2985	}	}
2986
2987	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
2988	int fd;	{
2989	unsigned char bootSect[512];	FILE *in;
2990	int offset;	char buf[1024];
2991		char *chptr;
2992	fd = open(device, O_RDONLY);	char *start;
2993	if (fd < 0) {	char *param;
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2994
2995	if (read(fd, bootSect, 512) != 512) {	in = fopen("/etc/sysconfig/grub", "r");
2996	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (!in)
2997	device, strerror(errno));	return 1;
	return 1;
	}
	close(fd);
2998
2999	/* first three bytes should match, a jmp short should be in there */	if (lbaPtr)
3000	if (memcmp(boot, bootSect, 3))	*lbaPtr = 0;
3001	return 0;	if (bootPtr)
3002		*bootPtr = NULL;
3003
3004		while (fgets(buf, sizeof(buf), in)) {
3005		start = buf;
3006		while (isspace(*start))
3007		start++;
3008		if (*start == '#')
3009		continue;
3010
3011		chptr = strchr(start, '=');
3012		if (!chptr)
3013		continue;
3014		chptr--;
3015		while (*chptr && isspace(*chptr))
3016		chptr--;
3017		chptr++;
3018		*chptr = '\0';
3019
3020		param = chptr + 1;
3021		while (*param && isspace(*param))
3022		param++;
3023		if (*param == '=') {
3024		param++;
3025		while (*param && isspace(*param))
3026		param++;
3027		}
3028
3029	if (boot[1] == JMP_SHORT_OPCODE) {	chptr = param;
3030	offset = boot[2] + 2;	while (*chptr && !isspace(*chptr))
3031	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	chptr++;
3032	offset = (boot[3] << 8) + boot[2] + 2;	*chptr = '\0';
3033	} else if (boot[0] == JMP_SHORT_OPCODE) {
3034	offset = boot[1] + 2;	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3035	/*	*lbaPtr = 1;
3036	* it looks like grub, when copying stage1 into the mbr, patches stage1	else if (!strcmp(start, "boot") && bootPtr)
3037	* right after the JMP location, replacing other instructions such as	*bootPtr = strdup(param);
3038	* JMPs for NOOPs. So, relax the check a little bit by skipping those	}
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
3039
3040	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	fclose(in);
	return 0;
3041
3042	return 2;	return 0;
3043	}	}
3044
3045	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	void dumpSysconfigGrub(void)
3046	int fd;	{
3047	char buf[65536];	char *boot = NULL;
3048	char * end;	int lba;
	char * chptr;
	char * chptr2;
	int rc;
	/* it's on raid; we need to parse /proc/mdstat and check all of the
	*raw* devices listed in there */
3049
3050	if (!strncmp(mdDev, "/dev/", 5))	if (isSuseSystem()) {
3051	mdDev += 5;	if (parseSuseGrubConf(&lba, &boot)) {
3052		free(boot);
3053		return;
3054		}
3055		} else {
3056		if (parseSysconfigGrub(&lba, &boot)) {
3057		free(boot);
3058		return;
3059		}
3060		}
3061
3062	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (lba)
3063	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	printf("lba\n");
3064	strerror(errno));	if (boot) {
3065	return 2;	printf("boot=%s\n", boot);
3066	}	free(boot);
3067		}
3068		}
3069
3070	rc = read(fd, buf, sizeof(buf) - 1);	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3071	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3072	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int i = 0;
3073	strerror(errno));	struct singleEntry *entry;
3074	close(fd);	struct singleLine *line;
3075	return 2;
3076	}	entry = findEntryByPath(config, kernel, prefix, &i);
3077	close(fd);	if (!entry) {
3078	buf[rc] = '\0';	fprintf(stderr, _("grubby: kernel not found\n"));
3079		return 1;
3080		}
3081
3082	chptr = buf;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3083	while (*chptr) {	be a better way */
3084	end = strchr(chptr, '\n');	if (config->cfi == &grubConfigType) {
3085	if (!end) break;	dumpSysconfigGrub();
3086	*end = '\0';	} else {
3087		line = getLineByType(LT_BOOT, config->theLines);
3088		if (line && line->numElements >= 1) {
3089		printf("boot=%s\n", line->elements[1].item);
3090		}
3091
3092	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	line = getLineByType(LT_LBA, config->theLines);
3093	chptr[strlen(mdDev)] == ' ') {	if (line)
3094		printf("lba\n");
3095		}
3096
3097	/* found the device */	displayEntry(entry, prefix, i);
	while (*chptr && *chptr != ':') chptr++;
	chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3098
3099	/*  we're good to go */	i++;
3100	return 2;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3101		displayEntry(entry, prefix, i);
3102		i++;
3103	}	}
3104
3105	chptr = end + 1;	return 0;
	}
	fprintf(stderr,
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3106	}	}
3107
3108	int checkForLilo(struct grubConfig * config) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3109	int fd;	struct singleLine *tmplLine,
3110	unsigned char boot[512];	struct singleLine *prevLine,
3111	struct singleLine * line;	const char *val, struct configFileInfo *cfi)
3112		{
3113	for (line = config->theLines; line; line = line->next)	struct singleLine *newLine = lineDup(tmplLine);
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3114
3115	if (line->numElements != 2) return 1;	if (isEfi && cfi == &grub2ConfigType) {
3116		enum lineType_e old = newLine->type;
3117		newLine->type = preferredLineType(newLine->type, cfi);
3118		if (old != newLine->type)
3119		newLine->elements[0].item =
3120		getKeyByType(newLine->type, cfi);
3121		}
3122
3123	fd = open("/boot/boot.b", O_RDONLY);	if (val) {
3124	if (fd < 0) {	/* override the inherited value with our own.
3125	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	* This is a little weak because it only applies to elements[1]
3126	"/boot/boot.b", strerror(errno));	*/
3127	return 1;	if (newLine->numElements > 1)
3128	}	removeElement(newLine, 1);
3129		insertElement(newLine, val, 1, cfi);
3130
3131		/* but try to keep the rootspec from the template... sigh */
3132		if (tmplLine->
3133		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3134		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3135		LT_INITRD_16)) {
3136		char *rootspec =
3137		getRootSpecifier(tmplLine->elements[1].item);
3138		if (rootspec != NULL) {
3139		free(newLine->elements[1].item);
3140		newLine->elements[1].item =
3141		sdupprintf("%s%s", rootspec, val);
3142		}
3143		}
3144		}
3145
3146	if (read(fd, boot, 512) != 512) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3147	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	newLine->elements[0].item : "");
	"/boot/boot.b", strerror(errno));
	return 1;
	}
	close(fd);
3148
3149	if (!strncmp("/dev/md", line->elements[1].item, 7))	if (!entry->lines) {
3150	return checkLiloOnRaid(line->elements[1].item, boot);	/* first one on the list */
3151		entry->lines = newLine;
3152		} else if (prevLine) {
3153		/* add after prevLine */
3154		newLine->next = prevLine->next;
3155		prevLine->next = newLine;
3156		}
3157
3158	return checkDeviceBootloader(line->elements[1].item, boot);	return newLine;
3159	}	}
3160
3161	int checkForGrub2(struct grubConfig * config) {	/* val may be NULL */
3162	if (!access("/etc/grub.d/", R_OK))	struct singleLine *addLine(struct singleEntry *entry,
3163	return 2;	struct configFileInfo *cfi,
3164		enum lineType_e type, char *defaultIndent,
3165		const char *val)
3166		{
3167		struct singleLine *line, *prev;
3168		struct keywordTypes *kw;
3169		struct singleLine tmpl;
3170
3171	return 1;	/* NB: This function shouldn't allocate items on the heap, rather on
3172	}	* the stack since it calls addLineTmpl which will make copies.
3173		*/
3174		if (type == LT_TITLE && cfi->titleBracketed) {
3175		/* we're doing a bracketed title (zipl) */
3176		tmpl.type = type;
3177		tmpl.numElements = 1;
3178		tmpl.elements = alloca(sizeof(*tmpl.elements));
3179		tmpl.elements[0].item = alloca(strlen(val) + 3);
3180		sprintf(tmpl.elements[0].item, "[%s]", val);
3181		tmpl.elements[0].indent = "";
3182		val = NULL;
3183		} else if (type == LT_MENUENTRY) {
3184		char *lineend = "--class gnu-linux --class gnu --class os {";
3185		if (!val) {
3186		fprintf(stderr,
3187		"Line type LT_MENUENTRY requires a value\n");
3188		abort();
3189		}
3190		kw = getKeywordByType(type, cfi);
3191		if (!kw) {
3192		fprintf(stderr,
3193		"Looking up keyword for unknown type %d\n",
3194		type);
3195		abort();
3196		}
3197		tmpl.indent = "";
3198		tmpl.type = type;
3199		tmpl.numElements = 3;
3200		tmpl.elements =
3201		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3202		tmpl.elements[0].item = kw->key;
3203		tmpl.elements[0].indent = alloca(2);
3204		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3205		tmpl.elements[1].item = (char *)val;
3206		tmpl.elements[1].indent = alloca(2);
3207		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3208		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3209		strcpy(tmpl.elements[2].item, lineend);
3210		tmpl.elements[2].indent = "";
3211		} else {
3212		kw = getKeywordByType(type, cfi);
3213		if (!kw) {
3214		fprintf(stderr,
3215		"Looking up keyword for unknown type %d\n",
3216		type);
3217		abort();
3218		}
3219		tmpl.type = type;
3220		tmpl.numElements = val ? 2 : 1;
3221		tmpl.elements =
3222		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3223		tmpl.elements[0].item = kw->key;
3224		tmpl.elements[0].indent = alloca(2);
3225		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3226		if (val) {
3227		tmpl.elements[1].item = (char *)val;
3228		tmpl.elements[1].indent = "";
3229		}
3230		}
3231
3232	int checkForGrub(struct grubConfig * config) {	/* The last non-empty line gives us the indention to us and the line
3233	int fd;	* to insert after. Note that comments are considered empty lines,
3234	unsigned char bootSect[512];	* which may not be ideal? If there are no lines or we are looking at
3235	char * boot;	* the first line, we use defaultIndent (the first line is normally
3236		* indented differently from the rest) */
3237		for (line = entry->lines, prev = NULL; line; line = line->next) {
3238		if (line->numElements)
3239		prev = line;
3240		/* fall back on the last line if prev isn't otherwise set */
3241		if (!line->next && !prev)
3242		prev = line;
3243		}
3244
3245		struct singleLine *menuEntry;
3246		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3247		if (tmpl.type == LT_ENTRY_END) {
3248		if (menuEntry)
3249		tmpl.indent = menuEntry->indent;
3250		else
3251		tmpl.indent = defaultIndent ? : "";
3252		} else if (tmpl.type != LT_MENUENTRY) {
3253		if (menuEntry)
3254		tmpl.indent = "\t";
3255		else if (prev == entry->lines)
3256		tmpl.indent = defaultIndent ? : "";
3257		else
3258		tmpl.indent = prev->indent;
3259		}
3260
3261	if (parseSysconfigGrub(NULL, &boot))	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3262	return 0;	}
3263
3264	/* assume grub is not installed -- not an error condition */	void removeLine(struct singleEntry *entry, struct singleLine *line)
3265	if (!boot)	{
3266	return 0;	struct singleLine *prev;
3267		int i;
3268
3269	fd = open("/boot/grub/stage1", O_RDONLY);	for (i = 0; i < line->numElements; i++) {
3270	if (fd < 0)	free(line->elements[i].item);
3271	/* this doesn't exist if grub hasn't been installed */	free(line->elements[i].indent);
3272	return 0;	}
3273		free(line->elements);
3274		free(line->indent);
3275
3276	if (read(fd, bootSect, 512) != 512) {	if (line == entry->lines) {
3277	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	entry->lines = line->next;
3278	"/boot/grub/stage1", strerror(errno));	} else {
3279	close(fd);	prev = entry->lines;
3280	return 1;	while (prev->next != line)
3281	}	prev = prev->next;
3282	close(fd);	prev->next = line->next;
3283		}
3284
3285	return checkDeviceBootloader(boot, bootSect);	free(line);
3286	}	}
3287
3288	int checkForExtLinux(struct grubConfig * config) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3289	int fd;	{
3290	unsigned char bootSect[512];	struct singleLine newLine = {
3291	char * boot;	.indent = tmplLine->indent,
3292	char executable[] = "/boot/extlinux/extlinux";	.type = tmplLine->type,
3293		.next = tmplLine->next,
3294	printf("entered: checkForExtLinux()\n");	};
3295		int firstQuotedItem = -1;
3296		int quoteLen = 0;
3297		int j;
3298		int element = 0;
3299		char *c;
3300
3301	if (parseSysconfigGrub(NULL, &boot))	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3302	return 0;	strcpy(c, tmplLine->elements[0].item);
3303		insertElement(&newLine, c, element++, cfi);
3304		free(c);
3305		c = NULL;
3306
3307		for (j = 1; j < tmplLine->numElements; j++) {
3308		if (firstQuotedItem == -1) {
3309		quoteLen += strlen(tmplLine->elements[j].item);
3310
3311		if (isquote(tmplLine->elements[j].item[0])) {
3312		firstQuotedItem = j;
3313		quoteLen +=
3314		strlen(tmplLine->elements[j].indent);
3315		} else {
3316		c = malloc(quoteLen + 1);
3317		strcpy(c, tmplLine->elements[j].item);
3318		insertElement(&newLine, c, element++, cfi);
3319		free(c);
3320		quoteLen = 0;
3321		}
3322		} else {
3323		int itemlen = strlen(tmplLine->elements[j].item);
3324		quoteLen += itemlen;
3325		quoteLen += strlen(tmplLine->elements[j].indent);
3326
3327		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3328		c = malloc(quoteLen + 1);
3329		c[0] = '\0';
3330		for (int i = firstQuotedItem; i < j + 1; i++) {
3331		strcat(c, tmplLine->elements[i].item);
3332		strcat(c, tmplLine->elements[i].indent);
3333		}
3334		insertElement(&newLine, c, element++, cfi);
3335		free(c);
3336
3337	/* assume grub is not installed -- not an error condition */	firstQuotedItem = -1;
3338	if (!boot)	quoteLen = 0;
3339	return 0;	}
3340		}
3341		}
3342		while (tmplLine->numElements)
3343		removeElement(tmplLine, 0);
3344		if (tmplLine->elements)
3345		free(tmplLine->elements);
3346
3347		tmplLine->numElements = newLine.numElements;
3348		tmplLine->elements = newLine.elements;
3349		}
3350
3351	fd = open(executable, O_RDONLY);	static void insertElement(struct singleLine *line,
3352	if (fd < 0)	const char *item, int insertHere,
3353	/* this doesn't exist if grub hasn't been installed */	struct configFileInfo *cfi)
3354	return 0;	{
3355		struct keywordTypes *kw;
3356		char indent[2] = "";
3357
3358	if (read(fd, bootSect, 512) != 512) {	/* sanity check */
3359	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (insertHere > line->numElements) {
3360	executable, strerror(errno));	dbgPrintf
3361	return 1;	("insertElement() adjusting insertHere from %d to %d\n",
3362	}	insertHere, line->numElements);
3363	close(fd);	insertHere = line->numElements;
3364		}
3365
3366		line->elements = realloc(line->elements, (line->numElements + 1) *
3367		sizeof(*line->elements));
3368		memmove(&line->elements[insertHere + 1],
3369		&line->elements[insertHere],
3370		(line->numElements - insertHere) * sizeof(*line->elements));
3371		line->elements[insertHere].item = strdup(item);
3372
3373		kw = getKeywordByType(line->type, cfi);
3374
3375		if (line->numElements == 0) {
3376		indent[0] = '\0';
3377		} else if (insertHere == 0) {
3378		indent[0] = kw->nextChar;
3379		} else if (kw->separatorChar != '\0') {
3380		indent[0] = kw->separatorChar;
3381		} else {
3382		indent[0] = ' ';
3383		}
3384
3385	return checkDeviceBootloader(boot, bootSect);	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3386	}	/* move the end-of-line forward */
3387		line->elements[insertHere].indent =
3388		line->elements[insertHere - 1].indent;
3389		line->elements[insertHere - 1].indent = strdup(indent);
3390		} else {
3391		line->elements[insertHere].indent = strdup(indent);
3392		}
3393
3394	static char * getRootSpecifier(char * str) {	line->numElements++;
	char * idx, * rootspec = NULL;
3395
3396	if (*str == '(') {	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3397	idx = rootspec = strdup(str);	line->elements[0].item,
3398	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	line->elements[insertHere].item,
3399	*(++idx) = '\0';	line->elements[insertHere].indent, insertHere);
	}
	return rootspec;
3400	}	}
3401
3402	static char * getInitrdVal(struct grubConfig * config,	static void removeElement(struct singleLine *line, int removeHere)
3403	const char * prefix, struct singleLine *tmplLine,	{
3404	const char * newKernelInitrd,	int i;
	char ** extraInitrds, int extraInitrdCount)
	{
	char *initrdVal, *end;
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3405
3406	initrdVal = end = malloc(totalSize);	/* sanity check */
3407		if (removeHere >= line->numElements)
3408		return;
3409
3410		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3411		removeHere, line->elements[removeHere].item);
3412
3413		free(line->elements[removeHere].item);
3414
3415		if (removeHere > 1) {
3416		/* previous argument gets this argument's post-indentation */
3417		free(line->elements[removeHere - 1].indent);
3418		line->elements[removeHere - 1].indent =
3419		line->elements[removeHere].indent;
3420		} else {
3421		free(line->elements[removeHere].indent);
3422		}
3423
3424	end = stpcpy (end, newKernelInitrd + prefixLen);	/* now collapse the array, but don't bother to realloc smaller */
3425		for (i = removeHere; i < line->numElements - 1; i++)
3426		line->elements[i] = line->elements[i + 1];
3427
3428	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	line->numElements--;
3429	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
3430
3431	extraInitrd = extraInitrds[i] + prefixLen;	int argMatch(const char *one, const char *two)
3432	/* Don't add entries that are already there */	{
3433	if (tmplLine != NULL) {	char *first, *second;
3434	for (j = 2; j < tmplLine->numElements; j++)	char *chptr;
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
3435
3436	if (j != tmplLine->numElements)	first = strcpy(alloca(strlen(one) + 1), one);
3437	continue;	second = strcpy(alloca(strlen(two) + 1), two);
	}
3438
3439	*end++ = separatorChar;	chptr = strchr(first, '=');
3440	end = stpcpy(end, extraInitrd);	if (chptr)
3441	}	*chptr = '\0';
3442
3443		chptr = strchr(second, '=');
3444		if (chptr)
3445		*chptr = '\0';
3446
3447	return initrdVal;	return strcmp(first, second);
3448	}	}
3449
3450	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int updateActualImage(struct grubConfig *cfg, const char *image,
3451	const char * prefix,	const char *prefix, const char *addArgs,
3452	char * newKernelPath, char * newKernelTitle,	const char *removeArgs, int multibootArgs)
3453	char * newKernelArgs, char * newKernelInitrd,	{
3454	char ** extraInitrds, int extraInitrdCount,	struct singleEntry *entry;
3455	char * newMBKernel, char * newMBKernelArgs) {	struct singleLine *line, *rootLine;
3456	struct singleEntry * new;	int index = 0;
3457	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	int i, k;
3458	int needs;	const char **newArgs, **oldArgs;
3459	char * chptr;	const char **arg;
3460		int useKernelArgs, useRoot;
3461	if (!newKernelPath) return 0;	int firstElement;
3462		int *usedElements;
3463	/* if the newKernelTitle is too long silently munge it into something	int doreplace;
3464	* we can live with. truncating is first check, then we'll just mess with
3465	* it until it looks better */	if (!image)
3466	if (config->cfi->maxTitleLength &&	return 0;
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3467
3468	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (!addArgs) {
3469	while (findEntryByPath(config, buf, NULL, NULL)) {	newArgs = malloc(sizeof(*newArgs));
3470	sprintf(numBuf, "%d", i++);	*newArgs = NULL;
3471	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	} else {
3472		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3473		fprintf(stderr,
3474		_("grubby: error separating arguments '%s'\n"),
3475		addArgs);
3476		return 1;
3477		}
3478	}	}
3479
3480	newKernelTitle = buf + 6;	if (!removeArgs) {
3481	}	oldArgs = malloc(sizeof(*oldArgs));
3482		*oldArgs = NULL;
3483		} else {
3484		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3485		fprintf(stderr,
3486		_("grubby: error separating arguments '%s'\n"),
3487		removeArgs);
3488		free(newArgs);
3489		return 1;
3490		}
3491		}
3492
3493	new = malloc(sizeof(*new));	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3494	new->skip = 0;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3495
3496	if (template) {	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3497	for (masterLine = template->lines;	&& !multibootArgs);
3498	masterLine && (tmplLine = lineDup(masterLine));
3499	lineFree(tmplLine), masterLine = masterLine->next)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3500	{
3501	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	if (multibootArgs && !entry->multiboot)
3502		continue;
3503	/* skip comments */
3504	chptr = tmplLine->indent;	/* Determine where to put the args.  If this config supports
3505	while (*chptr && isspace(*chptr)) chptr++;	* LT_KERNELARGS, use that.  Otherwise use
3506	if (*chptr == '#') continue;	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3507		*/
3508	if (tmplLine->type == LT_KERNEL &&	if (useKernelArgs) {
3509	tmplLine->numElements >= 2) {	line = getLineByType(LT_KERNELARGS, entry->lines);
3510	if (!template->multiboot && (needs & NEED_MB)) {	if (!line) {
3511	/* it's not a multiboot template and this is the kernel	/* no LT_KERNELARGS, need to add it */
3512	* line.  Try to be intelligent about inserting the	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3513	* hypervisor at the same time.	cfg->secondaryIndent, NULL);
3514	*/	}
3515	if (config->cfi->mbHyperFirst) {	firstElement = 1;
3516	/* insert the hypervisor first */
3517	newLine = addLine(new, config->cfi, LT_HYPER,	} else if (multibootArgs) {
3518	tmplLine->indent,	line = getLineByType(LT_HYPER, entry->lines);
3519	newMBKernel + strlen(prefix));	if (!line) {
3520	/* set up for adding the kernel line */	/* a multiboot entry without LT_HYPER? */
3521	free(tmplLine->indent);	continue;
3522	tmplLine->indent = strdup(config->secondaryIndent);	}
3523	needs &= ~NEED_MB;	firstElement = 2;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next && masterLine->next->type == LT_KERNEL) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
	}
3524
	} else {
	/* don't have a template, so start the entry with the
	* appropriate starting line
	*/
	switch (config->cfi->entryStart) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
3525	} else {	} else {
3526	newLine = addLine(new, config->cfi, LT_KERNEL,	line =
3527	config->primaryIndent,	getLineByType(LT_KERNEL | LT_MBMODULE |
3528	newKernelPath + strlen(prefix));	LT_KERNEL_EFI | LT_KERNEL_16,
3529	needs &= ~NEED_KERNEL;	entry->lines);
3530	break;	if (!line) {
3531		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3532		continue;
3533		}
3534		firstElement = 2;
3535	}	}
3536
3537	case LT_HYPER:	/* handle the elilo case which does:
3538	newLine = addLine(new, config->cfi, LT_HYPER,	*   append="hypervisor args -- kernel args"
3539	config->primaryIndent,	*/
3540	newMBKernel + strlen(prefix));	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3541	needs &= ~NEED_MB;	/* this is a multiboot entry, make sure there's
3542	break;	* -- on the args line
3543		*/
3544		for (i = firstElement; i < line->numElements; i++) {
3545		if (!strcmp(line->elements[i].item, "--"))
3546		break;
3547		}
3548		if (i == line->numElements) {
3549		/* assume all existing args are kernel args,
3550		* prepend -- to make it official
3551		*/
3552		insertElement(line, "--", firstElement,
3553		cfg->cfi);
3554		i = firstElement;
3555		}
3556		if (!multibootArgs) {
3557		/* kernel args start after the -- */
3558		firstElement = i + 1;
3559		}
3560		} else if (cfg->cfi->mbConcatArgs) {
3561		/* this is a non-multiboot entry, remove hyper args */
3562		for (i = firstElement; i < line->numElements; i++) {
3563		if (!strcmp(line->elements[i].item, "--"))
3564		break;
3565		}
3566		if (i < line->numElements) {
3567		/* remove args up to -- */
3568		while (strcmp
3569		(line->elements[firstElement].item,
3570		"--"))
3571		removeElement(line, firstElement);
3572		/* remove -- */
3573		removeElement(line, firstElement);
3574		}
3575		}
3576
3577	case LT_MENUENTRY: {	usedElements = calloc(line->numElements, sizeof(*usedElements));
3578	char *nkt = malloc(strlen(newKernelTitle)+3);
3579	strcpy(nkt, "'");	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3580	strcat(nkt, newKernelTitle);
3581	strcat(nkt, "'");	doreplace = 1;
3582	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (i = firstElement; i < line->numElements; i++) {
3583	config->primaryIndent, nkt);	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3584	free(nkt);	!strcmp(line->elements[i].item, "--")) {
3585	needs &= ~NEED_TITLE;	/* reached the end of hyper args, insert here */
3586	needs |= NEED_END;	doreplace = 0;
3587	break;	break;
3588	}	}
3589	case LT_TITLE:	if (usedElements[i])
3590	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	continue;
3591	char * templabel;	if (!argMatch(line->elements[i].item, *arg)) {
3592	int x = 0, y = 0;	usedElements[i] = 1;
3593		break;
3594	templabel = strdup(newKernelTitle);	}
3595	while( templabel[x]){	}
3596	if( templabel[x] == ' ' ){
3597	y = x;	if (i < line->numElements && doreplace) {
3598	while( templabel[y] ){	/* direct replacement */
3599	templabel[y] = templabel[y+1];	free(line->elements[i].item);
3600	y++;	line->elements[i].item = strdup(*arg);
3601	}
3602		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3603		/* root= replacement */
3604		rootLine = getLineByType(LT_ROOT, entry->lines);
3605		if (rootLine) {
3606		free(rootLine->elements[1].item);
3607		rootLine->elements[1].item =
3608		strdup(*arg + 5);
3609		} else {
3610		rootLine =
3611		addLine(entry, cfg->cfi, LT_ROOT,
3612		cfg->secondaryIndent,
3613		*arg + 5);
3614		}
3615		}
3616
3617		else {
3618		/* insert/append */
3619		insertElement(line, *arg, i, cfg->cfi);
3620		usedElements =
3621		realloc(usedElements,
3622		line->numElements *
3623		sizeof(*usedElements));
3624		memmove(&usedElements[i + 1], &usedElements[i],
3625		line->numElements - i - 1);
3626		usedElements[i] = 1;
3627
3628		/* if we updated a root= here even though
3629		* there is a LT_ROOT available we need to
3630		* remove the LT_ROOT entry (this will happen
3631		* if we switch from a device to a label) */
3632		if (useRoot && !strncmp(*arg, "root=", 5)) {
3633		rootLine =
3634		getLineByType(LT_ROOT,
3635		entry->lines);
3636		if (rootLine)
3637		removeLine(entry, rootLine);
3638	}	}
	x++;
3639	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
3640	}	}
3641	needs &= ~NEED_TITLE;
3642		free(usedElements);
3643
3644		for (arg = oldArgs; *arg; arg++) {
3645		for (i = firstElement; i < line->numElements; i++) {
3646		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3647		!strcmp(line->elements[i].item, "--"))
3648		/* reached the end of hyper args, stop here */
3649		break;
3650		if (!argMatch(line->elements[i].item, *arg)) {
3651		removeElement(line, i);
3652		break;
3653		}
3654		}
3655		/* handle removing LT_ROOT line too */
3656		if (useRoot && !strncmp(*arg, "root=", 5)) {
3657		rootLine = getLineByType(LT_ROOT, entry->lines);
3658		if (rootLine)
3659		removeLine(entry, rootLine);
3660		}
3661		}
3662
3663		if (line->numElements == 1) {
3664		/* don't need the line at all (note it has to be a
3665		LT_KERNELARGS for this to happen */
3666		removeLine(entry, line);
3667		}
3668		}
3669
3670		free(newArgs);
3671		free(oldArgs);
3672
3673		return 0;
3674		}
3675
3676		int updateImage(struct grubConfig *cfg, const char *image,
3677		const char *prefix, const char *addArgs,
3678		const char *removeArgs,
3679		const char *addMBArgs, const char *removeMBArgs)
3680		{
3681		int rc = 0;
3682
3683		if (!image)
3684		return rc;
3685
3686		/* update the main args first... */
3687		if (addArgs || removeArgs)
3688		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3689		0);
3690		if (rc)
3691		return rc;
3692
3693		/* and now any multiboot args */
3694		if (addMBArgs || removeMBArgs)
3695		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3696		removeMBArgs, 1);
3697		return rc;
3698		}
3699
3700		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3701		const char *image, const char *prefix, const char *initrd,
3702		const char *title)
3703		{
3704		struct singleEntry *entry;
3705		struct singleLine *line, *kernelLine, *endLine = NULL;
3706		int index = 0;
3707
3708		if (!image)
3709		return 0;
3710
3711		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3712		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3713		if (!kernelLine)
3714		continue;
3715
3716		/* if title is supplied, the entry's title must match it. */
3717		if (title) {
3718		char *linetitle;
3719
3720		line =
3721		getLineByType(LT_TITLE | LT_MENUENTRY,
3722		entry->lines);
3723		if (!line)
3724		continue;
3725
3726		linetitle = extractTitle(cfg, line);
3727		if (!linetitle)
3728		continue;
3729		if (strcmp(title, linetitle)) {
3730		free(linetitle);
3731		continue;
3732		}
3733		free(linetitle);
3734		}
3735
3736		if (prefix) {
3737		int prefixLen = strlen(prefix);
3738		if (!strncmp(initrd, prefix, prefixLen))
3739		initrd += prefixLen;
3740		}
3741		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3742		if (endLine)
3743		removeLine(entry, endLine);
3744		line =
3745		addLine(entry, cfg->cfi,
3746		preferredLineType(LT_MBMODULE, cfg->cfi),
3747		kernelLine->indent, initrd);
3748		if (!line)
3749		return 1;
3750		if (endLine) {
3751		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3752		if (!line)
3753		return 1;
3754		}
3755
3756	break;	break;
3757		}
3758
3759	default:	return 0;
3760	abort();	}
3761
3762		int updateInitrd(struct grubConfig *cfg, const char *image,
3763		const char *prefix, const char *initrd, const char *title)
3764		{
3765		struct singleEntry *entry;
3766		struct singleLine *line, *kernelLine, *endLine = NULL;
3767		int index = 0;
3768
3769		if (!image)
3770		return 0;
3771
3772		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3773		kernelLine =
3774		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3775		entry->lines);
3776		if (!kernelLine)
3777		continue;
3778
3779		/* if title is supplied, the entry's title must match it. */
3780		if (title) {
3781		char *linetitle;
3782
3783		line =
3784		getLineByType(LT_TITLE | LT_MENUENTRY,
3785		entry->lines);
3786		if (!line)
3787		continue;
3788
3789		linetitle = extractTitle(cfg, line);
3790		if (!linetitle)
3791		continue;
3792		if (strcmp(title, linetitle)) {
3793		free(linetitle);
3794		continue;
3795		}
3796		free(linetitle);
3797		}
3798
3799		line =
3800		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3801		entry->lines);
3802		if (line)
3803		removeLine(entry, line);
3804		if (prefix) {
3805		int prefixLen = strlen(prefix);
3806		if (!strncmp(initrd, prefix, prefixLen))
3807		initrd += prefixLen;
3808		}
3809		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3810		if (endLine)
3811		removeLine(entry, endLine);
3812		enum lineType_e lt;
3813		switch (kernelLine->type) {
3814		case LT_KERNEL:
3815		lt = LT_INITRD;
3816		break;
3817		case LT_KERNEL_EFI:
3818		lt = LT_INITRD_EFI;
3819		break;
3820		case LT_KERNEL_16:
3821		lt = LT_INITRD_16;
3822		break;
3823		default:
3824		lt = preferredLineType(LT_INITRD, cfg->cfi);
3825		}
3826		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3827		if (!line)
3828		return 1;
3829		if (endLine) {
3830		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3831		if (!line)
3832		return 1;
3833		}
3834
3835		break;
3836	}	}
	}
3837
3838	/* add the remainder of the lines, i.e. those that either	return 0;
3839	* weren't present in the template, or in the case of no template,	}
	* all the lines following the entryStart.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
3840
3841	if (needs) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3842	printf(_("grubby: needs=%d, aborting\n"), needs);	{
3843	abort();	int fd;
3844	}	unsigned char bootSect[512];
3845		int offset;
3846
3847		fd = open(device, O_RDONLY);
3848		if (fd < 0) {
3849		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3850		device, strerror(errno));
3851		return 1;
3852		}
3853
3854	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (read(fd, bootSect, 512) != 512) {
3855	newMBKernelArgs, NULL)) return 1;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3856		device, strerror(errno));
3857		return 1;
3858		}
3859		close(fd);
3860
3861	return 0;	/* first three bytes should match, a jmp short should be in there */
3862		if (memcmp(boot, bootSect, 3))
3863		return 0;
3864
3865		if (boot[1] == JMP_SHORT_OPCODE) {
3866		offset = boot[2] + 2;
3867		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3868		offset = (boot[3] << 8) + boot[2] + 2;
3869		} else if (boot[0] == JMP_SHORT_OPCODE) {
3870		offset = boot[1] + 2;
3871		/*
3872		* it looks like grub, when copying stage1 into the mbr,
3873		* patches stage1 right after the JMP location, replacing
3874		* other instructions such as JMPs for NOOPs. So, relax the
3875		* check a little bit by skipping those different bytes.
3876		*/
3877		if ((bootSect[offset + 1] == NOOP_OPCODE)
3878		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3879		offset = offset + 3;
3880		}
3881		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3882		offset = (boot[2] << 8) + boot[1] + 2;
3883		} else {
3884		return 0;
3885		}
3886
3887		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3888		return 0;
3889
3890		return 2;
3891	}	}
3892
3893	static void traceback(int signum)	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3894	{	{
3895	void *array[40];	int fd;
3896	size_t size;	char buf[65536];
3897		char *end;
3898		char *chptr;
3899		char *chptr2;
3900		int rc;
3901
3902		/* it's on raid; we need to parse /proc/mdstat and check all of the
3903		*raw* devices listed in there */
3904
3905		if (!strncmp(mdDev, "/dev/", 5))
3906		mdDev += 5;
3907
3908		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3909		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3910		strerror(errno));
3911		return 2;
3912		}
3913
3914		rc = read(fd, buf, sizeof(buf) - 1);
3915		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3916		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3917		strerror(errno));
3918		close(fd);
3919		return 2;
3920		}
3921		close(fd);
3922		buf[rc] = '\0';
3923
3924	signal(SIGSEGV, SIG_DFL);	chptr = buf;
3925	memset(array, '\0', sizeof (array));	while (*chptr) {
3926	size = backtrace(array, 40);	end = strchr(chptr, '\n');
3927		if (!end)
3928	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	break;
3929	(unsigned long)size);	*end = '\0';
3930	backtrace_symbols_fd(array, size, STDERR_FILENO);
3931	exit(1);	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3932	}	chptr[strlen(mdDev)] == ' ') {
3933
3934	int main(int argc, const char ** argv) {	/* found the device */
3935	poptContext optCon;	while (*chptr && *chptr != ':')
3936	const char * grubConfig = NULL;	chptr++;
3937	char * outputFile = NULL;	chptr++;
3938	int arg = 0;	while (*chptr && isspace(*chptr))
3939	int flags = 0;	chptr++;
3940	int badImageOkay = 0;
3941	int configureGrub2 = 0;	/* skip the "active" bit */
3942	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	while (*chptr && !isspace(*chptr))
3943	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	chptr++;
3944	int configureExtLinux = 0;	while (*chptr && isspace(*chptr))
3945	int bootloaderProbe = 0;	chptr++;
3946	int extraInitrdCount = 0;
3947	char * updateKernelPath = NULL;	/* skip the raid level */
3948	char * newKernelPath = NULL;	while (*chptr && !isspace(*chptr))
3949	char * removeKernelPath = NULL;	chptr++;
3950	char * newKernelArgs = NULL;	while (*chptr && isspace(*chptr))
3951	char * newKernelInitrd = NULL;	chptr++;
3952	char * newKernelTitle = NULL;
3953	char * newKernelVersion = NULL;	/* everything else is partition stuff */
3954	char * newMBKernel = NULL;	while (*chptr) {
3955	char * newMBKernelArgs = NULL;	chptr2 = chptr;
3956	char * removeMBKernelArgs = NULL;	while (*chptr2 && *chptr2 != '[')
3957	char * removeMBKernel = NULL;	chptr2++;
3958	char * bootPrefix = NULL;	if (!*chptr2)
3959	char * defaultKernel = NULL;	break;
3960	char * removeArgs = NULL;
3961	char * kernelInfo = NULL;	/* yank off the numbers at the end */
3962	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	chptr2--;
3963	const char * chptr = NULL;	while (isdigit(*chptr2) && chptr2 > chptr)
3964	struct configFileInfo * cfi = NULL;	chptr2--;
3965	struct grubConfig * config;	chptr2++;
3966	struct singleEntry * template = NULL;	*chptr2 = '\0';
3967	int copyDefault = 0, makeDefault = 0;
3968	int displayDefault = 0;	/* Better, now we need the /dev/ back. We're
3969	int displayDefaultIndex = 0;	* done with everything before this point, so
3970	int displayDefaultTitle = 0;	* we can just put the /dev/ part there.
3971	struct poptOption options[] = {	* There will always be room. */
3972	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	memcpy(chptr - 5, "/dev/", 5);
3973	_("add an entry for the specified kernel"), _("kernel-path") },	rc = checkDeviceBootloader(chptr - 5, boot);
3974	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	if (rc != 2) {
3975	_("add an entry for the specified multiboot kernel"), NULL },	return rc;
3976	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	}
3977	_("default arguments for the new kernel or new arguments for "
3978	"kernel being updated"), _("args") },	chptr = chptr2 + 1;
3979	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	/* skip the [11] bit */
3980	_("default arguments for the new multiboot kernel or "	while (*chptr && !isspace(*chptr))
3981	"new arguments for multiboot kernel being updated"), NULL },	chptr++;
3982	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	/* and move to the next one */
3983	_("don't sanity check images in boot entries (for testing only)"),	while (*chptr && isspace(*chptr))
3984	NULL },	chptr++;
3985	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	}
3986	_("filestystem which contains /boot directory (for testing only)"),
3987	_("bootfs") },	/*  we're good to go */
3988	#if defined(__i386__) || defined(__x86_64__)	return 2;
3989	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	}
3990	_("check if lilo is installed on lilo.conf boot sector") },
3991	#endif	chptr = end + 1;
3992	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	}
3993	_("path to grub config file to update (\"-\" for stdin)"),
3994	_("path") },	fprintf(stderr,
3995	{ "copy-default", 0, 0, &copyDefault, 0,	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
3996	_("use the default boot entry as a template for the new entry "	mdDev);
3997	"being added; if the default is not a linux image, or if "	return 0;
3998	"the kernel referenced by the default image does not exist, "	}
3999	"the first linux entry whose kernel does exist is used as the "
4000	"template"), NULL },	int checkForLilo(struct grubConfig *config)
4001	{ "debug", 0, 0, &debug, 0,	{
4002	_("print debugging information for failures") },	int fd;
4003	{ "default-kernel", 0, 0, &displayDefault, 0,	unsigned char boot[512];
4004	_("display the path of the default kernel") },	struct singleLine *line;
4005	{ "default-index", 0, 0, &displayDefaultIndex, 0,
4006	_("display the index of the default kernel") },	for (line = config->theLines; line; line = line->next)
4007	{ "default-title", 0, 0, &displayDefaultTitle, 0,	if (line->type == LT_BOOT)
4008	_("display the title of the default kernel") },	break;
4009	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4010	_("configure elilo bootloader") },	if (!line) {
4011	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	fprintf(stderr,
4012	_("configure extlinux bootloader (from syslinux)") },	_
4013	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	("grubby: no boot line found in lilo configuration\n"));
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	optCon = poptGetContext("grubby", argc, argv, options, 0);
	poptReadDefaultConfig(optCon, 1);
	while ((arg = poptGetNextOpt(optCon)) >= 0) {
	switch (arg) {
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
4014	return 1;	return 1;
	}
	break;
4015	}	}
	}
4016
4017	if (arg < -1) {	if (line->numElements != 2)
4018	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	return 1;
4019	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4020	poptStrerror(arg));	fd = open("/boot/boot.b", O_RDONLY);
4021	return 1;	if (fd < 0) {
4022	}	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4023		"/boot/boot.b", strerror(errno));
4024		return 1;
4025		}
4026
4027		if (read(fd, boot, 512) != 512) {
4028		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4029		"/boot/boot.b", strerror(errno));
4030		return 1;
4031		}
4032		close(fd);
4033
4034		if (!strncmp("/dev/md", line->elements[1].item, 7))
4035		return checkLiloOnRaid(line->elements[1].item, boot);
4036
4037		return checkDeviceBootloader(line->elements[1].item, boot);
4038		}
4039
4040		int checkForGrub2(struct grubConfig *config)
4041		{
4042		if (!access("/etc/grub.d/", R_OK))
4043		return 2;
4044
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4045	return 1;	return 1;
4046	}	}
4047
4048		int checkForGrub(struct grubConfig *config)
4049		{
4050		int fd;
4051		unsigned char bootSect[512];
4052		char *boot;
4053		int onSuse = isSuseSystem();
4054
4055		if (onSuse) {
4056		if (parseSuseGrubConf(NULL, &boot))
4057		return 0;
4058		} else {
4059		if (parseSysconfigGrub(NULL, &boot))
4060		return 0;
4061		}
4062
4063		/* assume grub is not installed -- not an error condition */
4064		if (!boot)
4065		return 0;
4066
4067		fd = open("/boot/grub/stage1", O_RDONLY);
4068		if (fd < 0)
4069		/* this doesn't exist if grub hasn't been installed */
4070		return 0;
4071
4072		if (read(fd, bootSect, 512) != 512) {
4073		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4074		"/boot/grub/stage1", strerror(errno));
4075		close(fd);
4076		return 1;
4077		}
4078		close(fd);
4079
4080		/* The more elaborate checks do not work on SuSE. The checks done
4081		* seem to be reasonble (at least for now), so just return success
4082		*/
4083		if (onSuse)
4084		return 2;
4085
4086		return checkDeviceBootloader(boot, bootSect);
4087		}
4088
4089		int checkForExtLinux(struct grubConfig *config)
4090		{
4091		int fd;
4092		unsigned char bootSect[512];
4093		char *boot;
4094		char executable[] = "/boot/extlinux/extlinux";
4095
4096		printf("entered: checkForExtLinux()\n");
4097
4098		if (parseSysconfigGrub(NULL, &boot))
4099		return 0;
4100
4101		/* assume grub is not installed -- not an error condition */
4102		if (!boot)
4103		return 0;
4104
4105		fd = open(executable, O_RDONLY);
4106		if (fd < 0)
4107		/* this doesn't exist if grub hasn't been installed */
4108		return 0;
4109
4110		if (read(fd, bootSect, 512) != 512) {
4111		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4112		executable, strerror(errno));
4113		return 1;
4114		}
4115		close(fd);
4116
4117		return checkDeviceBootloader(boot, bootSect);
4118		}
4119
4120		int checkForYaboot(struct grubConfig *config)
4121		{
4122		/*
4123		* This is a simplistic check that we consider good enough for own puporses
4124		*
4125		* If we were to properly check if yaboot is *installed* we'd need to:
4126		* 1) get the system boot device (LT_BOOT)
4127		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4128		*    the content on the boot device
4129		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4130		* 4) check again if binary and boot device contents match
4131		*/
4132		if (!access("/etc/yaboot.conf", R_OK))
4133		return 2;
4134
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4135	return 1;	return 1;
4136	} else if (bootloaderProbe && grubConfig) {	}
4137	fprintf(stderr,
4138	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4139		{
4140		if (!access("/etc/elilo.conf", R_OK))
4141		return 2;
4142
4143	return 1;	return 1;
4144	} 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;
	}
4145
4146	if (!cfi) {	static char *getRootSpecifier(char *str)
4147	#ifdef __ia64__	{
4148	cfi = &eliloConfigType;	char *idx, *rootspec = NULL;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	if (grub2FindConfig(&grub2ConfigType))
	cfi = &grub2ConfigType;
	else
	cfi = &grubConfigType;
	#endif
	}
4149
4150	if (!grubConfig) {	if (*str == '(') {
4151	if (cfi->findConfig)	idx = rootspec = strdup(str);
4152	grubConfig = cfi->findConfig(cfi);	while (*idx && (*idx != ')') && (!isspace(*idx)))
4153	if (!grubConfig)	idx++;
4154	grubConfig = cfi->defaultConfig;	*(++idx) = '\0';
4155	}	}
4156		return rootspec;
4157		}
4158
4159		static char *getInitrdVal(struct grubConfig *config,
4160		const char *prefix, struct singleLine *tmplLine,
4161		const char *newKernelInitrd,
4162		const char **extraInitrds, int extraInitrdCount)
4163		{
4164		char *initrdVal, *end;
4165		int i;
4166		size_t totalSize;
4167		size_t prefixLen;
4168		char separatorChar;
4169
4170		prefixLen = strlen(prefix);
4171		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4172
4173		for (i = 0; i < extraInitrdCount; i++) {
4174		totalSize += sizeof(separatorChar);
4175		totalSize += strlen(extraInitrds[i]) - prefixLen;
4176		}
4177
4178		initrdVal = end = malloc(totalSize);
4179
4180		end = stpcpy(end, newKernelInitrd + prefixLen);
4181
4182		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4183		for (i = 0; i < extraInitrdCount; i++) {
4184		const char *extraInitrd;
4185		int j;
4186
4187		extraInitrd = extraInitrds[i] + prefixLen;
4188		/* Don't add entries that are already there */
4189		if (tmplLine != NULL) {
4190		for (j = 2; j < tmplLine->numElements; j++)
4191		if (strcmp
4192		(extraInitrd,
4193		tmplLine->elements[j].item) == 0)
4194		break;
4195
4196		if (j != tmplLine->numElements)
4197		continue;
4198		}
4199
4200	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	*end++ = separatorChar;
4201	newKernelPath || removeKernelPath || makeDefault ||	end = stpcpy(end, extraInitrd);
4202	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	}
4203	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "
4204		return initrdVal;
4205		}
4206
4207		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4208		const char *prefix,
4209		const char *newKernelPath, const char *newKernelTitle,
4210		const char *newKernelArgs, const char *newKernelInitrd,
4211		const char **extraInitrds, int extraInitrdCount,
4212		const char *newMBKernel, const char *newMBKernelArgs,
4213		const char *newDevTreePath)
4214		{
4215		struct singleEntry *new;
4216		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4217		int needs;
4218		char *chptr;
4219
4220		if (!newKernelPath)
4221		return 0;
4222
4223		/* if the newKernelTitle is too long silently munge it into something
4224		* we can live with. truncating is first check, then we'll just mess with
4225		* it until it looks better */
4226		if (config->cfi->maxTitleLength &&
4227		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4228		char *buf = alloca(config->cfi->maxTitleLength + 7);
4229		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4230		int i = 1;
4231
4232		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4233		newKernelTitle);
4234		while (findEntryByPath(config, buf, NULL, NULL)) {
4235		sprintf(numBuf, "%d", i++);
4236		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4237		}
4238
4239		newKernelTitle = buf + 6;
4240		}
4241
4242		new = malloc(sizeof(*new));
4243		new->skip = 0;
4244		new->multiboot = 0;
4245		new->next = config->entries;
4246		new->lines = NULL;
4247		config->entries = new;
4248
4249		/* copy/update from the template */
4250		needs = NEED_KERNEL | NEED_TITLE;
4251		if (newKernelInitrd)
4252		needs |= NEED_INITRD;
4253		if (newMBKernel) {
4254		needs |= NEED_MB;
4255		new->multiboot = 1;
4256		}
4257		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4258		needs |= NEED_DEVTREE;
4259
4260		if (template) {
4261		for (masterLine = template->lines;
4262		masterLine && (tmplLine = lineDup(masterLine));
4263		lineFree(tmplLine), masterLine = masterLine->next) {
4264		dbgPrintf("addNewKernel processing %d\n",
4265		tmplLine->type);
4266
4267		/* skip comments */
4268		chptr = tmplLine->indent;
4269		while (*chptr && isspace(*chptr))
4270		chptr++;
4271		if (*chptr == '#')
4272		continue;
4273
4274		if (iskernel(tmplLine->type)
4275		&& tmplLine->numElements >= 2) {
4276		if (!template->multiboot && (needs & NEED_MB)) {
4277		/* it's not a multiboot template and
4278		* this is the kernel line.  Try to
4279		* be intelligent about inserting the
4280		* hypervisor at the same time.
4281		*/
4282		if (config->cfi->mbHyperFirst) {
4283		/* insert the hypervisor first */
4284		newLine =
4285		addLine(new, config->cfi,
4286		LT_HYPER,
4287		tmplLine->indent,
4288		newMBKernel +
4289		strlen(prefix));
4290		/* set up for adding the
4291		* kernel line */
4292		free(tmplLine->indent);
4293		tmplLine->indent =
4294		strdup(config->
4295		secondaryIndent);
4296		needs &= ~NEED_MB;
4297		}
4298		if (needs & NEED_KERNEL) {
4299		/* use addLineTmpl to
4300		* preserve line elements,
4301		* otherwise we could just
4302		* call addLine.
4303		* Unfortunately this means
4304		* making some changes to the
4305		* template such as the
4306		* indent change above and
4307		* the type change below.
4308		*/
4309		struct keywordTypes *mbm_kw =
4310		getKeywordByType
4311		(LT_MBMODULE, config->cfi);
4312		if (mbm_kw) {
4313		tmplLine->type =
4314		LT_MBMODULE;
4315		free(tmplLine->
4316		elements[0].item);
4317		tmplLine->elements[0].
4318		item =
4319		strdup(mbm_kw->key);
4320		}
4321		newLine =
4322		addLineTmpl(new, tmplLine,
4323		newLine,
4324		newKernelPath +
4325		strlen(prefix),
4326		config->cfi);
4327		needs &= ~NEED_KERNEL;
4328		}
4329		if (needs & NEED_MB) { /* !mbHyperFirst */
4330		newLine =
4331		addLine(new, config->cfi,
4332		LT_HYPER,
4333		config->
4334		secondaryIndent,
4335		newMBKernel +
4336		strlen(prefix));
4337		needs &= ~NEED_MB;
4338		}
4339		} else if (needs & NEED_KERNEL) {
4340		newLine =
4341		addLineTmpl(new, tmplLine, newLine,
4342		newKernelPath +
4343		strlen(prefix),
4344		config->cfi);
4345		needs &= ~NEED_KERNEL;
4346		}
4347
4348		} else if (tmplLine->type == LT_HYPER &&
4349		tmplLine->numElements >= 2) {
4350		if (needs & NEED_MB) {
4351		newLine =
4352		addLineTmpl(new, tmplLine, newLine,
4353		newMBKernel +
4354		strlen(prefix),
4355		config->cfi);
4356		needs &= ~NEED_MB;
4357		}
4358
4359		} else if (tmplLine->type == LT_MBMODULE &&
4360		tmplLine->numElements >= 2) {
4361		if (new->multiboot) {
4362		if (needs & NEED_KERNEL) {
4363		newLine =
4364		addLineTmpl(new, tmplLine,
4365		newLine,
4366		newKernelPath +
4367		strlen(prefix),
4368		config->cfi);
4369		needs &= ~NEED_KERNEL;
4370		} else if (config->cfi->mbInitRdIsModule
4371		&& (needs & NEED_INITRD)) {
4372		char *initrdVal;
4373		initrdVal =
4374		getInitrdVal(config, prefix,
4375		tmplLine,
4376		newKernelInitrd,
4377		extraInitrds,
4378		extraInitrdCount);
4379		newLine =
4380		addLineTmpl(new, tmplLine,
4381		newLine,
4382		initrdVal,
4383		config->cfi);
4384		free(initrdVal);
4385		needs &= ~NEED_INITRD;
4386		}
4387		} else if (needs & NEED_KERNEL) {
4388		/* template is multi but new is not,
4389		* insert the kernel in the first
4390		* module slot
4391		*/
4392		tmplLine->type =
4393		preferredLineType(LT_KERNEL,
4394		config->cfi);
4395		free(tmplLine->elements[0].item);
4396		tmplLine->elements[0].item =
4397		strdup(getKeywordByType
4398		(tmplLine->type,
4399		config->cfi)->key);
4400		newLine =
4401		addLineTmpl(new, tmplLine, newLine,
4402		newKernelPath +
4403		strlen(prefix),
4404		config->cfi);
4405		needs &= ~NEED_KERNEL;
4406		} else if (needs & NEED_INITRD) {
4407		char *initrdVal;
4408		/* template is multi but new is not,
4409		* insert the initrd in the second
4410		* module slot
4411		*/
4412		tmplLine->type =
4413		preferredLineType(LT_INITRD,
4414		config->cfi);
4415		free(tmplLine->elements[0].item);
4416		tmplLine->elements[0].item =
4417		strdup(getKeywordByType
4418		(tmplLine->type,
4419		config->cfi)->key);
4420		initrdVal =
4421		getInitrdVal(config, prefix,
4422		tmplLine,
4423		newKernelInitrd,
4424		extraInitrds,
4425		extraInitrdCount);
4426		newLine =
4427		addLineTmpl(new, tmplLine, newLine,
4428		initrdVal, config->cfi);
4429		free(initrdVal);
4430		needs &= ~NEED_INITRD;
4431		}
4432
4433		} else if (isinitrd(tmplLine->type)
4434		&& tmplLine->numElements >= 2) {
4435		if (needs & NEED_INITRD && new->multiboot
4436		&& !template->multiboot
4437		&& config->cfi->mbInitRdIsModule) {
4438		/* make sure we don't insert the
4439		* module initrd before the module
4440		* kernel... if we don't do it here,
4441		* it will be inserted following the
4442		* template.
4443		*/
4444		if (!needs & NEED_KERNEL) {
4445		char *initrdVal;
4446
4447		initrdVal =
4448		getInitrdVal(config, prefix,
4449		tmplLine,
4450		newKernelInitrd,
4451		extraInitrds,
4452		extraInitrdCount);
4453		newLine =
4454		addLine(new, config->cfi,
4455		LT_MBMODULE,
4456		config->
4457		secondaryIndent,
4458		initrdVal);
4459		free(initrdVal);
4460		needs &= ~NEED_INITRD;
4461		}
4462		} else if (needs & NEED_INITRD) {
4463		char *initrdVal;
4464		initrdVal =
4465		getInitrdVal(config, prefix,
4466		tmplLine,
4467		newKernelInitrd,
4468		extraInitrds,
4469		extraInitrdCount);
4470		newLine =
4471		addLineTmpl(new, tmplLine, newLine,
4472		initrdVal, config->cfi);
4473		free(initrdVal);
4474		needs &= ~NEED_INITRD;
4475		}
4476
4477		} else if (tmplLine->type == LT_MENUENTRY &&
4478		(needs & NEED_TITLE)) {
4479		requote(tmplLine, config->cfi);
4480		char *nkt = malloc(strlen(newKernelTitle) + 3);
4481		strcpy(nkt, "'");
4482		strcat(nkt, newKernelTitle);
4483		strcat(nkt, "'");
4484		newLine =
4485		addLineTmpl(new, tmplLine, newLine, nkt,
4486		config->cfi);
4487		free(nkt);
4488		needs &= ~NEED_TITLE;
4489		} else if (tmplLine->type == LT_TITLE &&
4490		(needs & NEED_TITLE)) {
4491		if (tmplLine->numElements >= 2) {
4492		newLine =
4493		addLineTmpl(new, tmplLine, newLine,
4494		newKernelTitle,
4495		config->cfi);
4496		needs &= ~NEED_TITLE;
4497		} else if (tmplLine->numElements == 1 &&
4498		config->cfi->titleBracketed) {
4499		/* addLineTmpl doesn't handle
4500		* titleBracketed */
4501		newLine =
4502		addLine(new, config->cfi, LT_TITLE,
4503		tmplLine->indent,
4504		newKernelTitle);
4505		needs &= ~NEED_TITLE;
4506		}
4507		} else if (tmplLine->type == LT_ECHO) {
4508		requote(tmplLine, config->cfi);
4509		static const char *prefix = "'Loading ";
4510		if (tmplLine->numElements > 1 &&
4511		strstr(tmplLine->elements[1].item, prefix)
4512		&& masterLine->next
4513		&& iskernel(masterLine->next->type)) {
4514		char *newTitle =
4515		malloc(strlen(prefix) +
4516		strlen(newKernelTitle) + 2);
4517
4518		strcpy(newTitle, prefix);
4519		strcat(newTitle, newKernelTitle);
4520		strcat(newTitle, "'");
4521		newLine =
4522		addLine(new, config->cfi, LT_ECHO,
4523		tmplLine->indent, newTitle);
4524		free(newTitle);
4525		} else {
4526		/* pass through other lines from the
4527		* template */
4528		newLine =
4529		addLineTmpl(new, tmplLine, newLine,
4530		NULL, config->cfi);
4531		}
4532		} else if (tmplLine->type == LT_DEVTREE &&
4533		tmplLine->numElements == 2
4534		&& newDevTreePath) {
4535		newLine =
4536		addLineTmpl(new, tmplLine, newLine,
4537		newDevTreePath + strlen(prefix),
4538		config->cfi);
4539		needs &= ~NEED_DEVTREE;
4540		} else if (tmplLine->type == LT_ENTRY_END
4541		&& needs & NEED_DEVTREE) {
4542		const char *ndtp = newDevTreePath;
4543		if (!strncmp
4544		(newDevTreePath, prefix, strlen(prefix)))
4545		ndtp += strlen(prefix);
4546		newLine = addLine(new, config->cfi, LT_DEVTREE,
4547		config->secondaryIndent,
4548		ndtp);
4549		needs &= ~NEED_DEVTREE;
4550		newLine =
4551		addLineTmpl(new, tmplLine, newLine, NULL,
4552		config->cfi);
4553		} else {
4554		/* pass through other lines from the template */
4555		newLine =
4556		addLineTmpl(new, tmplLine, newLine, NULL,
4557		config->cfi);
4558		}
4559		}
4560
4561		} else {
4562		/* don't have a template, so start the entry with the
4563		* appropriate starting line
4564		*/
4565		switch (config->cfi->entryStart) {
4566		case LT_KERNEL:
4567		case LT_KERNEL_EFI:
4568		case LT_KERNEL_16:
4569		if (new->multiboot && config->cfi->mbHyperFirst) {
4570		/* fall through to LT_HYPER */
4571		} else {
4572		newLine = addLine(new, config->cfi,
4573		preferredLineType(LT_KERNEL,
4574		config->
4575		cfi),
4576		config->primaryIndent,
4577		newKernelPath +
4578		strlen(prefix));
4579		needs &= ~NEED_KERNEL;
4580		break;
4581		}
4582
4583		case LT_HYPER:
4584		newLine = addLine(new, config->cfi, LT_HYPER,
4585		config->primaryIndent,
4586		newMBKernel + strlen(prefix));
4587		needs &= ~NEED_MB;
4588		break;
4589
4590		case LT_MENUENTRY:{
4591		char *nkt = malloc(strlen(newKernelTitle) + 3);
4592		strcpy(nkt, "'");
4593		strcat(nkt, newKernelTitle);
4594		strcat(nkt, "'");
4595		newLine =
4596		addLine(new, config->cfi, LT_MENUENTRY,
4597		config->primaryIndent, nkt);
4598		free(nkt);
4599		needs &= ~NEED_TITLE;
4600		needs |= NEED_END;
4601		break;
4602		}
4603		case LT_TITLE:
4604		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4605		char *templabel;
4606		int x = 0, y = 0;
4607
4608		templabel = strdup(newKernelTitle);
4609		while (templabel[x]) {
4610		if (templabel[x] == ' ') {
4611		y = x;
4612		while (templabel[y]) {
4613		templabel[y] =
4614		templabel[y + 1];
4615		y++;
4616		}
4617		}
4618		x++;
4619		}
4620		newLine = addLine(new, config->cfi, LT_TITLE,
4621		config->primaryIndent,
4622		templabel);
4623		free(templabel);
4624		} else {
4625		newLine = addLine(new, config->cfi, LT_TITLE,
4626		config->primaryIndent,
4627		newKernelTitle);
4628		}
4629		needs &= ~NEED_TITLE;
4630		break;
4631
4632		default:
4633		abort();
4634		}
4635		}
4636
4637		struct singleLine *endLine = NULL;
4638		endLine = getLineByType(LT_ENTRY_END, new->lines);
4639		if (endLine) {
4640		removeLine(new, endLine);
4641		needs |= NEED_END;
4642		}
4643
4644		/* add the remainder of the lines, i.e. those that either
4645		* weren't present in the template, or in the case of no template,
4646		* all the lines following the entryStart.
4647		*/
4648		if (needs & NEED_TITLE) {
4649		newLine = addLine(new, config->cfi, LT_TITLE,
4650		config->secondaryIndent, newKernelTitle);
4651		needs &= ~NEED_TITLE;
4652		}
4653		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4654		newLine = addLine(new, config->cfi, LT_HYPER,
4655		config->secondaryIndent,
4656		newMBKernel + strlen(prefix));
4657		needs &= ~NEED_MB;
4658		}
4659		if (needs & NEED_KERNEL) {
4660		newLine = addLine(new, config->cfi,
4661		(new->multiboot
4662		&& getKeywordByType(LT_MBMODULE,
4663		config->cfi))
4664		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4665		config->
4666		cfi),
4667		config->secondaryIndent,
4668		newKernelPath + strlen(prefix));
4669		needs &= ~NEED_KERNEL;
4670		}
4671		if (needs & NEED_MB) {
4672		newLine = addLine(new, config->cfi, LT_HYPER,
4673		config->secondaryIndent,
4674		newMBKernel + strlen(prefix));
4675		needs &= ~NEED_MB;
4676		}
4677		if (needs & NEED_INITRD) {
4678		char *initrdVal;
4679		initrdVal =
4680		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4681		extraInitrds, extraInitrdCount);
4682		newLine =
4683		addLine(new, config->cfi,
4684		(new->multiboot
4685		&& getKeywordByType(LT_MBMODULE, config->cfi))
4686		? LT_MBMODULE : preferredLineType(LT_INITRD,
4687		config->cfi),
4688		config->secondaryIndent, initrdVal);
4689		free(initrdVal);
4690		needs &= ~NEED_INITRD;
4691		}
4692		if (needs & NEED_DEVTREE) {
4693		newLine = addLine(new, config->cfi, LT_DEVTREE,
4694		config->secondaryIndent, newDevTreePath);
4695		needs &= ~NEED_DEVTREE;
4696		}
4697
4698		/* NEEDS_END must be last on bootloaders that need it... */
4699		if (needs & NEED_END) {
4700		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4701		config->secondaryIndent, NULL);
4702		needs &= ~NEED_END;
4703		}
4704
4705		if (needs) {
4706		printf(_("grubby: needs=%d, aborting\n"), needs);
4707		abort();
4708		}
4709
4710		if (updateImage(config, "0", prefix, newKernelArgs, NULL,
4711		newMBKernelArgs, NULL))
4712		return 1;
4713
4714		return 0;
4715		}
4716
4717		int main(int argc, const char **argv)
4718		{
4719		poptContext optCon;
4720		const char *grubConfig = NULL;
4721		char *outputFile = NULL;
4722		int arg = 0;
4723		int flags = 0;
4724		int badImageOkay = 0;
4725		int configureGrub2 = 0;
4726		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4727		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4728		int configureExtLinux = 0;
4729		int bootloaderProbe = 0;
4730		int extraInitrdCount = 0;
4731		char *updateKernelPath = NULL;
4732		char *newKernelPath = NULL;
4733		char *removeKernelPath = NULL;
4734		char *newKernelArgs = NULL;
4735		char *newKernelInitrd = NULL;
4736		char *newKernelTitle = NULL;
4737		char *newDevTreePath = NULL;
4738		char *newMBKernel = NULL;
4739		char *newMBKernelArgs = NULL;
4740		char *removeMBKernelArgs = NULL;
4741		char *removeMBKernel = NULL;
4742		char *bootPrefix = NULL;
4743		char *defaultKernel = NULL;
4744		char *removeArgs = NULL;
4745		char *kernelInfo = NULL;
4746		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4747		char *envPath = NULL;
4748		const char *chptr = NULL;
4749		struct configFileInfo *cfi = NULL;
4750		struct grubConfig *config;
4751		struct singleEntry *template = NULL;
4752		int copyDefault = 0, makeDefault = 0;
4753		int displayDefault = 0;
4754		int displayDefaultIndex = 0;
4755		int displayDefaultTitle = 0;
4756		int defaultIndex = -1;
4757		struct poptOption options[] = {
4758		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4759		_("add an entry for the specified kernel"), _("kernel-path")},
4760		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4761		_("add an entry for the specified multiboot kernel"), NULL},
4762		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4763		_("default arguments for the new kernel or new arguments for "
4764		"kernel being updated"), _("args")},
4765		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4766		_("default arguments for the new multiboot kernel or "
4767		"new arguments for multiboot kernel being updated"), NULL},
4768		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4769		_
4770		("don't sanity check images in boot entries (for testing only)"),
4771		NULL},
4772		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4773		_
4774		("filestystem which contains /boot directory (for testing only)"),
4775		_("bootfs")},
4776		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4777		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4778		_("check which bootloader is installed on boot sector")},
4779		#endif
4780		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4781		_("path to grub config file to update (\"-\" for stdin)"),
4782		_("path")},
4783		{"copy-default", 0, 0, &copyDefault, 0,
4784		_("use the default boot entry as a template for the new entry "
4785		"being added; if the default is not a linux image, or if "
4786		"the kernel referenced by the default image does not exist, "
4787		"the first linux entry whose kernel does exist is used as the "
4788		"template"), NULL},
4789		{"debug", 0, 0, &debug, 0,
4790		_("print debugging information for failures")},
4791		{"default-kernel", 0, 0, &displayDefault, 0,
4792		_("display the path of the default kernel")},
4793		{"default-index", 0, 0, &displayDefaultIndex, 0,
4794		_("display the index of the default kernel")},
4795		{"default-title", 0, 0, &displayDefaultTitle, 0,
4796		_("display the title of the default kernel")},
4797		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4798		_("device tree file for new stanza"), _("dtb-path")},
4799		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4800		_("device tree directory for new stanza"), _("dtb-path")},
4801		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4802		_("configure elilo bootloader")},
4803		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4804		_("force grub2 stanzas to use efi")},
4805		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4806		_("path for environment data"),
4807		_("path")},
4808		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4809		_("configure extlinux bootloader (from syslinux)")},
4810		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4811		_("configure grub bootloader")},
4812		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4813		_("configure grub2 bootloader")},
4814		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4815		_("display boot information for specified kernel"),
4816		_("kernel-path")},
4817		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4818		_("initrd image for the new kernel"), _("initrd-path")},
4819		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4820		_
4821		("auxiliary initrd image for things other than the new kernel"),
4822		_("initrd-path")},
4823		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4824		_("configure lilo bootloader")},
4825		{"make-default", 0, 0, &makeDefault, 0,
4826		_("make the newly added entry the default boot entry"), NULL},
4827		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4828		_("path to output updated config file (\"-\" for stdout)"),
4829		_("path")},
4830		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4831		_("remove kernel arguments"), NULL},
4832		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4833		_("remove multiboot kernel arguments"), NULL},
4834		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4835		_("remove all entries for the specified kernel"),
4836		_("kernel-path")},
4837		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4838		_("remove all entries for the specified multiboot kernel"),
4839		NULL},
4840		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4841		_("make the first entry referencing the specified kernel "
4842		"the default"), _("kernel-path")},
4843		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4844		_("make the given entry index the default entry"),
4845		_("entry-index")},
4846		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4847		_("configure silo bootloader")},
4848		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4849		_("title to use for the new kernel entry"), _("entry-title")},
4850		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4851		_("updated information for the specified kernel"),
4852		_("kernel-path")},
4853		{"version", 'v', 0, NULL, 'v',
4854		_("print the version of this program and exit"), NULL},
4855		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4856		_("configure yaboot bootloader")},
4857		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4858		_("configure zipl bootloader")},
4859		POPT_AUTOHELP {0, 0, 0, 0, 0}
4860		};
4861
4862		useextlinuxmenu = 0;
4863
4864		int i = 0;
4865		for (int j = 1; j < argc; j++)
4866		i += strlen(argv[j]) + 1;
4867		saved_command_line = malloc(i);
4868		if (!saved_command_line) {
4869		fprintf(stderr, "grubby: %m\n");
4870		exit(1);
4871		}
4872		saved_command_line[0] = '\0';
4873		for (int j = 1; j < argc; j++) {
4874		strcat(saved_command_line, argv[j]);
4875		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4876		}
4877
4878		optCon = poptGetContext("grubby", argc, argv, options, 0);
4879		poptReadDefaultConfig(optCon, 1);
4880
4881		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4882		switch (arg) {
4883		case 'v':
4884		printf("grubby version %s\n", VERSION);
4885		exit(0);
4886		break;
4887		case 'i':
4888		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4889		extraInitrds[extraInitrdCount++] =
4890		strdup(poptGetOptArg(optCon));
4891		} else {
4892		fprintf(stderr,
4893		_
4894		("grubby: extra initrd maximum is %d\n"),
4895		extraInitrdCount);
4896		return 1;
4897		}
4898		break;
4899		}
4900		}
4901
4902		if (arg < -1) {
4903		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4904		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4905		poptStrerror(arg));
4906		return 1;
4907		}
4908
4909		if ((chptr = poptGetArg(optCon))) {
4910		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4911		return 1;
4912		}
4913
4914		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
4915		configureYaboot + configureSilo + configureZipl +
4916		configureExtLinux) > 1) {
4917		fprintf(stderr,
4918		_("grubby: cannot specify multiple bootloaders\n"));
4919		return 1;
4920		} else if (bootloaderProbe && grubConfig) {
4921		fprintf(stderr,
4922		_
4923		("grubby: cannot specify config file with --bootloader-probe\n"));
4924		return 1;
4925		} else if (configureGrub2) {
4926		cfi = &grub2ConfigType;
4927		if (envPath)
4928		cfi->envFile = envPath;
4929		} else if (configureLilo) {
4930		cfi = &liloConfigType;
4931		} else if (configureGrub) {
4932		cfi = &grubConfigType;
4933		} else if (configureELilo) {
4934		cfi = &eliloConfigType;
4935		} else if (configureYaboot) {
4936		cfi = &yabootConfigType;
4937		} else if (configureSilo) {
4938		cfi = &siloConfigType;
4939		} else if (configureZipl) {
4940		cfi = &ziplConfigType;
4941		} else if (configureExtLinux) {
4942		cfi = &extlinuxConfigType;
4943		useextlinuxmenu = 1;
4944		}
4945
4946		if (!cfi) {
4947		if (grub2FindConfig(&grub2ConfigType)) {
4948		cfi = &grub2ConfigType;
4949		if (envPath)
4950		cfi->envFile = envPath;
4951		} else
4952		#ifdef __ia64__
4953		cfi = &eliloConfigType;
4954		#elif __powerpc__
4955		cfi = &yabootConfigType;
4956		#elif __sparc__
4957		cfi = &siloConfigType;
4958		#elif __s390__
4959		cfi = &ziplConfigType;
4960		#elif __s390x__
4961		cfi = &ziplConfigtype;
4962		#else
4963		cfi = &grubConfigType;
4964		#endif
4965		}
4966
4967		if (!grubConfig) {
4968		if (cfi->findConfig)
4969		grubConfig = cfi->findConfig(cfi);
4970		if (!grubConfig)
4971		grubConfig = cfi->defaultConfig;
4972		}
4973
4974		if (bootloaderProbe && (displayDefault || kernelInfo ||
4975		newKernelPath || removeKernelPath || makeDefault
4976		|| defaultKernel || displayDefaultIndex
4977		|| displayDefaultTitle
4978		|| (defaultIndex >= 0))) {
4979		fprintf(stderr,
4980		_("grubby: --bootloader-probe may not be used with "
4981	"specified option"));	"specified option"));
4982	return 1;	return 1;
4983	}	}
4984
4985	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
4986	removeKernelPath)) {	removeKernelPath)) {
4987	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
4988	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
4989	return 1;	return 1;
4990	}	}
4991
4992	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
4993	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
4994	return 1;	return 1;
4995	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
4996	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
4997	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
4998	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
4999	return 1;	return 1;
5000	}	}
5001
5002	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5003	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5004	"not be used together"));	"not be used together"));
5005	return 1;	return 1;
5006	}	}
5007
5008	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5009	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5010		"may not be used together\n"));
5011		return 1;
5012		} else if (defaultKernel && removeKernelPath &&
5013		!strcmp(defaultKernel, removeKernelPath)) {
5014		fprintf(stderr,
5015		_("grubby: cannot make removed kernel the default\n"));
5016		return 1;
5017		} else if (defaultKernel && newKernelPath &&
5018		!strcmp(defaultKernel, newKernelPath)) {
5019		makeDefault = 1;
5020		defaultKernel = NULL;
5021		} else if (defaultKernel && (defaultIndex >= 0)) {
5022		fprintf(stderr,
5023		_("grubby: --set-default and --set-default-index "
5024	"may not be used together\n"));	"may not be used together\n"));
5025	return 1;	return 1;
5026	} 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;
	}
5027
5028	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5029	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5030	"is used\n"));	_("grubby: output file must be specified if stdin "
5031	return 1;	"is used\n"));
5032	}	return 1;
5033		}
5034
5035	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5036	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5037	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5038	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5039	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5040	}	return 1;
5041		}
5042
5043	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5044
5045	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5046	if (!bootPrefix) {	if (!bootPrefix) {
5047	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5048	if (!bootPrefix) return 1;	if (!bootPrefix)
5049	} else {	return 1;
5050	/* this shouldn't end with a / */	} else {
5051	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5052	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5053		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5054		}
5055		} else {
5056		bootPrefix = "";
5057	}	}
	} else {
	bootPrefix = "";
	}
5058
5059	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5060	extraInitrdCount > 0) {	fprintf(stderr,
5061	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5062	return 1;	cfi->defaultConfig);
5063	}	return 1;
5064		}
5065
5066	if (bootloaderProbe) {	if (bootloaderProbe) {
5067	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5068	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5069
5070	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5071	if (grub2config) {	if (grub2config) {
5072	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5073	if (!gconfig)	if (!gconfig)
5074	gr2c = 1;	gr2c = 1;
5075	else	else
5076	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5077	}	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	erc = 1;
	else
	erc = checkForExtLinux(lconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1) return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
5078
5079	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5080	}	if (!access(grubconfig, F_OK)) {
5081		gconfig = readConfig(grubconfig, &grubConfigType);
5082		if (!gconfig)
5083		grc = 1;
5084		else
5085		grc = checkForGrub(gconfig);
5086		}
5087
5088	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5089	if (!config) return 1;	lconfig =
5090		readConfig(liloConfigType.defaultConfig,
5091		&liloConfigType);
5092		if (!lconfig)
5093		lrc = 1;
5094		else
5095		lrc = checkForLilo(lconfig);
5096		}
5097
5098	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5099	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5100	struct singleEntry * entry;	&eliloConfigType);
5101	char * rootspec;	if (!econfig)
5102		erc = 1;
5103	if (config->defaultImage == -1) return 0;	else
5104	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5105	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));
5106
5107	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5108		lconfig =
5109		readConfig(extlinuxConfigType.defaultConfig,
5110		&extlinuxConfigType);
5111		if (!lconfig)
5112		extrc = 1;
5113		else
5114		extrc = checkForExtLinux(lconfig);
5115		}
5116
5117	} else if (displayDefaultTitle) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5118	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5119	struct singleEntry * entry;	&yabootConfigType);
5120		if (!yconfig)
5121	if (config->defaultImage == -1) return 0;	yrc = 1;
5122	entry = findEntryByIndex(config, config->defaultImage);	else
5123	if (!entry) return 0;	yrc = checkForYaboot(yconfig);
5124		}
5125	if (!configureGrub2) {
5126	line = getLineByType(LT_TITLE, entry->lines);	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5127	if (!line) return 0;	|| erc == 1)
5128	printf("%s\n", line->elements[1].item);	return 1;
5129
5130	} else {	if (lrc == 2)
5131	char * title;	printf("lilo\n");
5132		if (gr2c == 2)
5133	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	printf("grub2\n");
5134	line = getLineByType(LT_MENUENTRY, entry->lines);	if (grc == 2)
5135	if (!line) return 0;	printf("grub\n");
5136	title = grub2ExtractTitle(line);	if (extrc == 2)
5137	if (title)	printf("extlinux\n");
5138	printf("%s\n", title);	if (yrc == 2)
5139		printf("yaboot\n");
5140		if (erc == 2)
5141		printf("elilo\n");
5142
5143		return 0;
5144	}	}
	return 0;
5145
5146	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5147	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5148	printf("%i\n", config->defaultImage);	exit(1);
5149		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5150
5151	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5152	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5153	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5154	bootPrefix, flags);
5155	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5156	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5157	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5158	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5159	if (updateInitrd(config, updateKernelPath, bootPrefix,
5160	newKernelInitrd)) return 1;	if (config->defaultImage == -1)
5161	}	return 0;
5162	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5163	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5164	extraInitrds, extraInitrdCount,	config->defaultImage = 0;
5165	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5166		if (!entry)
5167		return 0;
5168	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5169	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5170	"Not writing out new config.\n"));
5171	return 1;	line =
5172	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5173		LT_KERNEL_16, entry->lines);
5174		if (!line)
5175		return 0;
5176
5177		rootspec = getRootSpecifier(line->elements[1].item);
5178		printf("%s%s\n", bootPrefix, line->elements[1].item +
5179		((rootspec != NULL) ? strlen(rootspec) : 0));
5180
5181		return 0;
5182
5183		} else if (displayDefaultTitle) {
5184		struct singleLine *line;
5185		struct singleEntry *entry;
5186
5187		if (config->defaultImage == -1)
5188		return 0;
5189		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5190		cfi->defaultIsSaved)
5191		config->defaultImage = 0;
5192		entry = findEntryByIndex(config, config->defaultImage);
5193		if (!entry)
5194		return 0;
5195
5196		if (!configureGrub2) {
5197		char *title;
5198		line = getLineByType(LT_TITLE, entry->lines);
5199		if (!line)
5200		return 0;
5201		title = extractTitle(config, line);
5202		if (!title)
5203		return 0;
5204		printf("%s\n", title);
5205		free(title);
5206		} else {
5207		char *title;
5208
5209		dbgPrintf
5210		("This is GRUB2, default title is embeded in menuentry\n");
5211		line = getLineByType(LT_MENUENTRY, entry->lines);
5212		if (!line)
5213		return 0;
5214		title = grub2ExtractTitle(line);
5215		if (title)
5216		printf("%s\n", title);
5217		}
5218		return 0;
5219
5220		} else if (displayDefaultIndex) {
5221		if (config->defaultImage == -1)
5222		return 0;
5223		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5224		cfi->defaultIsSaved)
5225		config->defaultImage = 0;
5226		printf("%i\n", config->defaultImage);
5227		return 0;
5228
5229		} else if (kernelInfo)
5230		return displayInfo(config, kernelInfo, bootPrefix);
5231
5232		if (copyDefault) {
5233		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5234		if (!template)
5235		return 1;
5236		}
5237
5238		markRemovedImage(config, removeKernelPath, bootPrefix);
5239		markRemovedImage(config, removeMBKernel, bootPrefix);
5240		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5241		makeDefault, bootPrefix, flags, defaultIndex);
5242		setFallbackImage(config, newKernelPath != NULL);
5243		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5244		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5245		return 1;
5246		if (updateKernelPath && newKernelInitrd) {
5247		if (newMBKernel) {
5248		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5249		bootPrefix, newKernelInitrd,
5250		newKernelTitle))
5251		return 1;
5252		} else {
5253		if (updateInitrd(config, updateKernelPath, bootPrefix,
5254		newKernelInitrd, newKernelTitle))
5255		return 1;
5256		}
5257		}
5258		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5259		newKernelTitle, newKernelArgs, newKernelInitrd,
5260		(const char **)extraInitrds, extraInitrdCount,
5261		newMBKernel, newMBKernelArgs, newDevTreePath))
5262		return 1;
5263
5264		if (numEntries(config) == 0) {
5265		fprintf(stderr,
5266		_("grubby: doing this would leave no kernel entries. "
5267		"Not writing out new config.\n"));
5268		return 1;
5269		}
5270
5271	if (!outputFile)	if (!outputFile)
5272	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5273
5274	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5275	}	}

---

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Legend: Removed from v.1747   changed lines   Added in v.3003