Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1802 by niro, Mon Apr 16 17:49:04 2012 UTC	revision 3019 by niro, Tue Jun 27 14:38:16 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/etc/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
200	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	};	{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
248	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
249	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
250	"/boot/grub/grub.cfg",	};
251	NULL
252	};	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static int i = -1;	{
254	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256	if (i == -1) {	"/boot/grub/grub.cfg",
257	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
258	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
259	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	dbgPrintf("not found\n");	char *ret = calloc(l + 1, sizeof(*ret));
345	return configFiles[i];	if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int i;	{
400	int count = 0;	int count = 0;
401
402	for (i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	char *grub2ExtractTitle(struct singleLine * line) {	static int iskernel(enum lineType_e type)
429	char * current;	{
430	char * current_indent;	return (type == LT_KERNEL || type == LT_KERNEL_EFI
431	int current_len;	|| type == LT_KERNEL_16);
432	int current_indent_len;	}
433	int i;
434		static int isinitrd(enum lineType_e type)
435	/* bail out if line does not start with menuentry */	{
436	if (strcmp(line->elements[0].item, "menuentry"))	return (type == LT_INITRD || type == LT_INITRD_EFI
437	return NULL;	|| type == LT_INITRD_16);
438		}
	i = 1;
	current = line->elements[i].item;
	current_len = strlen(current);
	/* if second word is quoted, strip the quotes and return single word */
	if (isquote(*current) && isquote(current[current_len - 1])) {
	char *tmp;
	tmp = strdup(current);
	*(tmp + current_len - 1) = '\0';
	return ++tmp;
	}
439
440	/* if no quotes, return second word verbatim */	char *grub2ExtractTitle(struct singleLine *line)
441	if (!isquote(*current))	{
442	return current;	char *current;
443		char *current_indent;
444	/* second element start with a quote, so we have to find the element	int current_len;
445	* whose last character is also quote (assuming it's the closing one) */	int current_indent_len;
446	int resultMaxSize;	int i;
447	char * result;
448		/* bail out if line does not start with menuentry */
449	resultMaxSize = sizeOfSingleLine(line);	if (strcmp(line->elements[0].item, "menuentry"))
450	result = malloc(resultMaxSize);	return NULL;
451	snprintf(result, resultMaxSize, "%s", ++current);
452		i = 1;
	i++;
	for (; i < line->numElements; ++i) {
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (!isquote(current[current_len-1])) {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 1,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785	}	}
786
787	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
789	if (kt)	{
790	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
791	return "unknown";	switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812	}	}
813
814	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	if (!blkid)	struct configFileInfo *cfi)
816	blkid_get_cache(&blkid, NULL);	{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822		}
823
824	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825		{
826		struct keywordTypes *kt = getKeywordByType(type, cfi);
827		if (kt)
828		return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
841	struct configFileInfo * cfi) {	{
842	struct keywordTypes * kw;	if (!blkid)
843	for (kw = cfi->keywords; kw->key; kw++) {	blkid_get_cache(&blkid, NULL);
	if (!strcmp(keyword, kw->key))
	return kw->type;
	}
	return LT_UNKNOWN;
	}
844
845	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;
846	}	}
847
848	static int isBracketedTitle(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
849	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct configFileInfo *cfi)
850	int len = strlen(line->elements[0].item);	{
851	if (*(line->elements[0].item + len - 1) == ']') {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	/* FIXME: this is a hack... */	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return kw->type;
854	return 1;	}
855	}	return LT_UNKNOWN;
	}
	}
	return 0;
856	}	}
857
858	static int isEntryStart(struct singleLine * line,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct configFileInfo * cfi) {	struct singleLine *line)
860	return line->type == cfi->entryStart || line->type == LT_OTHER ||	{
861	(cfi->titleBracketed && isBracketedTitle(line));	dbgPrintf("getLineByType(%d): ", type);
862		for (; line; line = line->next) {
863		dbgPrintf("%d:%s ", line->type,
864		line->numElements ? line->elements[0].
865		item : "(empty)");
866		if (line->type & type)
867		break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	/* extract the title from within brackets (for zipl) */	static int isBracketedTitle(struct singleLine *line)
874	static char * extractTitle(struct singleLine * line) {	{
875	/* bracketed title... let's extract it (leaks a byte) */	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	char * title;	int len = strlen(line->elements[0].item);
877	title = strdup(line->elements[0].item);	if (*(line->elements[0].item + len - 1) == ']') {
878	title++;	/* FIXME: this is a hack... */
879	*(title + strlen(title) - 1) = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	return title;	return 1;
881	}	}
882		}
883	static int readFile(int fd, char ** bufPtr) {	}
884	int alloced = 0, size = 0, i = 0;	return 0;
885	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';
886
887	*bufPtr = buf;	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888		{
889		return line->type == cfi->entryStart || line->type == LT_OTHER ||
890		(cfi->titleBracketed && isBracketedTitle(line));
891		}
892
893	return 0;	/* extract the title from within brackets (for zipl) */
894		static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895		{
896		/* bracketed title... let's extract it */
897		char *title = NULL;
898		if (line->type == LT_TITLE) {
899		char *tmp = line->elements[cfg->cfi->titlePosition].item;
900		if (cfg->cfi->titleBracketed) {
901		tmp++;
902		title = strdup(tmp);
903		*(title + strlen(title) - 1) = '\0';
904		} else {
905		title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912	}	}
913
914	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
915	line->indent = NULL;	{
916	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
917	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);
	}
918
919	return newLine;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineFree(struct singleLine * line) {	if (i < 0) {
928	int i;	fprintf(stderr, _("error reading input: %s\n"),
929		strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
935		if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
942
943	if (line->elements) free(line->elements);	return 0;
	lineInit(line);
944	}	}
945
946	static int lineWrite(FILE * out, struct singleLine * line,	static void lineInit(struct singleLine *line)
947	struct configFileInfo * cfi) {	{
948	int i;	line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953		}
954
955	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *lineDup(struct singleLine *line)
956		{
957		struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	/* Need to handle this, because we strip the quotes from	newLine->next = NULL;
961	* menuentry when read it. */	newLine->type = line->type;
962	if (line->type == LT_MENUENTRY && i == 1) {	newLine->numElements = line->numElements;
963	if(!isquote(*line->elements[i].item))	newLine->elements = malloc(sizeof(*newLine->elements) *
964	fprintf(out, "\'%s\'", line->elements[i].item);	newLine->numElements);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
965
966	continue;	for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
972	if (fputc('"', out) == EOF) return -1;	}
	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;
	if (i < line->numElements - 1)
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098	line->type = LT_WHITESPACE;	do {
1099	line->numElements = 0;	for (; *chptr && isspace(*chptr); chptr++) ;
1100	}	if (*chptr == '=')
1101	} else {	chptr = chptr + 1;
1102	struct keywordTypes *kw;	} while (isspace(*chptr));
1103
1104	kw = getKeywordByType(line->type, cfi);	element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107	/* space isn't the only separator, we need to split	line->numElements++;
1108	* elements up more	first = 0;
1109	*/	}
	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;
1110
1111	numNewElements = 0;	if (!line->numElements)
1112	p = line->elements[i].item;	line->type = LT_WHITESPACE;
1113	while (*p != '\0') {	else {
1114	if (*p == kw->separatorChar)	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	numNewElements++;	if (line->type == LT_UNKNOWN) {
1116	p++;	/* zipl does [title] instead of something reasonable
1117	}	* like all the other boot loaders.  kind of ugly */
1118	if (line->numElements + numNewElements >= elementsAlloced) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	elementsAlloced += numNewElements + 5;	line->type = LT_TITLE;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
1120	}	}
1121
1122	for (j = line->numElements; j > i; j--) {	/* this is awkward, but we need to be able to handle
1123	line->elements[j + numNewElements] = line->elements[j];	* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150		line->type = LT_WHITESPACE;
1151		line->numElements = 0;
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191	line->elements[i].indent = strdup("");	}
1192	p = line->elements[i].item;	line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214	}	}
1215	}	} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int 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;
	}
	}
	rc = readFile(in, &incoming);
	close(in);
	if (rc) return NULL;
	head = incoming;
	cfg = malloc(sizeof(*cfg));
	cfg->primaryIndent = strdup("");
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1262
1263	if (getNextLine(&head, line, cfi)) {	static struct grubConfig *readConfig(const char *inName,
1264	free(line);	struct configFileInfo *cfi)
1265	/* XXX memory leak of everything in cfg */	{
1266	return NULL;	int in;
1267	}	char *incoming = NULL, *head;
1268		int rc;
1269	if (!sawEntry && line->numElements) {	int sawEntry = 0;
1270	free(cfg->primaryIndent);	int movedLine = 0;
1271	cfg->primaryIndent = strdup(line->indent);	struct grubConfig *cfg;
1272	} else if (line->numElements) {	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	free(cfg->secondaryIndent);	char *end;
1274	cfg->secondaryIndent = strdup(line->indent);	struct singleEntry *entry = NULL;
1275	}	int len;
1276		char *buf;
1277	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1278	sawEntry = 1;	if (inName == NULL) {
1279	if (!entry) {	printf("Could not find bootloader configuration\n");
1280	cfg->entries = malloc(sizeof(*entry));	exit(1);
1281	entry = cfg->entries;	} else if (!strcmp(inName, "-")) {
1282	} else {	in = 0;
1283	entry->next = malloc(sizeof(*entry));	} else {
1284	entry = entry->next;	if ((in = open(inName, O_RDONLY)) < 0) {
1285	}	fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289		}
1290
1291	entry->skip = 0;	rc = readFile(in, &incoming);
1292	entry->multiboot = 0;	close(in);
1293	entry->lines = NULL;	if (rc)
1294	entry->next = NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1298	int i;	cfg->primaryIndent = strdup("");
1299	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->secondaryIndent = strdup("\t");
1300	dbgPrintf("%s", line->indent);	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	for (i = 0; i < line->numElements; i++)	cfg->cfi = cfi;
1302	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);	cfg->theLines = NULL;
1303	dbgPrintf("\n");	cfg->entries = NULL;
1304	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->fallbackImage = 0;
1305	if (kwType && line->numElements == 3 &&	cfg->isModified = 0;
1306	!strcmp(line->elements[1].item, kwType->key)) {
1307	dbgPrintf("Line sets default config\n");	/* copy everything we have */
1308	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	while (*head) {
1309	defaultLine = line;	line = malloc(sizeof(*line));
1310	}	lineInit(line);
1311	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
1312	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	if (getNextLine(&head, line, cfi)) {
1313	defaultLine = line;	free(line);
1314		/* XXX memory leak of everything in cfg */
1315	} else if (line->type == LT_KERNEL) {	return NULL;
1316	/* 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';
1317
1318	for (i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1320	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1328	free(line->elements[i].indent);	if (!entry) {
1329	}	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1333	line->elements[line->numElements - 1].indent;	entry = entry->next;
1334	line->elements[1].item = buf;	}
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
	/* allocate mem for extra flags. */
	extras = malloc(len + 1);
	*extras = '\0';
	/* get title. */
	for (i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (isquote(*line->elements[i].item))
	title = line->elements[i].item + 1;
	else
	title = line->elements[i].item;
1335
1336	len = strlen(title);	entry->skip = 0;
1337	if (isquote(title[len-1])) {	entry->multiboot = 0;
1338	strncat(buf, title,len-1);	entry->lines = NULL;
1339	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1340	}	}
	}
1341
1342	/* get extras */	if (line->type == LT_SET_VARIABLE) {
1343	int count = 0;	dbgPrintf("found 'set' command (%d elements): ",
1344	for (i = 0; i < line->numElements; i++) {	line->numElements);
1345	if (count == 2) {	dbgPrintf("%s", line->indent);
1346	strcat(extras, line->elements[i].item);	for (int i = 0; i < line->numElements; i++)
1347	strcat(extras, line->elements[i].indent);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	}	line->elements[i].indent);
1349		dbgPrintf("\n");
1350	if (!strcmp(line->elements[i].item, "menuentry"))	struct keywordTypes *kwType =
1351	continue;	getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353	/* count ' or ", there should be two in menuentry line. */	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (isquote(*line->elements[i].item))	&& !is_special_grub2_variable(
1355	count++;	line->elements[2].item)) {
1356		dbgPrintf("Line sets default config\n");
1357	len = strlen(line->elements[i].item);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358		defaultLine = line;
1359	if (isquote(line->elements[i].item[len -1]))	}
1360	count++;	} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362	/* ok, we get the final ' or ", others are extras. */	* "module" lines came earlier in the template, make
1363	}	* sure to use LT_HYPER instead of LT_KERNEL now
1364	line->elements[1].indent =	*/
1365	line->elements[line->numElements - 2].indent;	if (entry && entry->multiboot)
1366	line->elements[1].item = buf;	line->type = LT_HYPER;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (isquote(*line->elements[1].item))
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (isquote(line->elements[last].item[len]))
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1367
1368	if (sawEntry) {	} else if (line->type == LT_MBMODULE) {
1369	if (!entry->lines)	/* go back and fix the LT_KERNEL line to indicate
1370	entry->lines = line;	* LT_HYPER instead, now that we know this is a
1371	else	* multiboot entry.  This only applies to grub, but
1372	last->next = line;	* that's the only place we should find LT_MBMODULE
1373	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	* lines anyway.
1374		*/
1375	/* we could have seen this outside of an entry... if so, we	for (struct singleLine * l = entry->lines; l;
1376	* ignore it like any other line we don't grok */	l = l->next) {
1377	if (line->type == LT_ENTRY_END && sawEntry)	if (l->type == LT_HYPER)
1378	sawEntry = 0;	break;
1379	} else {	else if (iskernel(l->type)) {
1380	if (!cfg->theLines)	l->type = LT_HYPER;
1381	cfg->theLines = line;	break;
1382	else	}
1383	last->next = line;	}
1384	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	entry->multiboot = 1;
	}
1385
1386	last = line;	} else if (line->type == LT_HYPER) {
1387	}	entry->multiboot = 1;
1388
1389	free(incoming);	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	for (int i = 1; i < line->numElements; i++) {
1409	if (defaultLine) {	strcat(buf, line->elements[i].item);
1410	if (defaultLine->numElements > 2 &&	free(line->elements[i].item);
1411	cfi->defaultSupportSaved &&
1412	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	if ((i + 1) != line->numElements) {
1413	cfg->defaultImage = DEFAULT_SAVED_GRUB2;	strcat(buf, line->elements[i].indent);
1414	} else if (cfi->defaultIsVariable) {	free(line->elements[i].indent);
1415	char *value = defaultLine->elements[2].item;	}
1416	while (*value && (*value == '"' || *value == '\'' ||	}
	*value == ' ' || *value == '\t'))
	value++;
	cfg->defaultImage = strtol(value, &end, 10);
	while (*end && (*end == '"' || *end == '\'' ||
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	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;
	}
1417
1418	if (entry){	line->elements[1].indent =
1419	cfg->defaultImage = i;	line->elements[line->numElements - 1].indent;
1420	}else{	line->elements[1].item = buf;
1421	cfg->defaultImage = -1;	line->numElements = 2;
1422	}	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	}	/* let --remove-kernel="TITLE=what" work */
1424	} else {	len = 0;
1425	cfg->defaultImage = 0;	char *extras;
1426	}	char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	return cfg;	/* allocate mem for extra flags. */
1438	}	extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	static void writeDefault(FILE * out, char * indent,	len = strlen(title);
1456	char * separator, struct grubConfig * cfg) {	if (title[len - 1] == quote_char) {
1457	struct singleEntry * entry;	strncat(buf, title, len - 1);
1458	struct singleLine * line;	break;
1459	int i;	} else {
1460		strcat(buf, title);
1461	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	strcat(buf, line->elements[i].indent);
1462		}
1463	if (cfg->defaultImage == DEFAULT_SAVED)	}
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)
	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
	else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1464
1465	entry = cfg->entries;	/* get extras */
1466	while (entry && entry->skip) entry = entry->next;	int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	i = 0;	if (!strcmp
1476	while (entry && i < image) {	(line->elements[i].item, "menuentry"))
1477	entry = entry->next;	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	while (entry && entry->skip) entry = entry->next;	len = strlen(line->elements[i].item);
	i++;
	}
1488
1489	if (!entry) return;	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	line = getLineByType(LT_TITLE, entry->lines);	/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (line && line->numElements >= 2)	if (isquote(*line->elements[1].item))
1511	fprintf(out, "%sdefault%s%s\n", indent, separator,	memmove(line->elements[1].item,
1512	line->elements[1].item);	line->elements[1].item + 1,
1513	else if (line && (line->numElements == 1) &&	strlen(line->elements[1].item +
1514	cfg->cfi->titleBracketed) {	1) + 1);
1515	fprintf(out, "%sdefault%s%s\n", indent, separator,
1516	extractTitle(line));	last = line->numElements - 1;
1517	}	len = strlen(line->elements[last].item) - 1;
1518	}	if (isquote(line->elements[last].item[len]))
1519	}	line->elements[last].item[len] = '\0';
1520	}	}
1521		}
1522
1523	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	FILE * out;	defaultLine = line;
1526	struct singleLine * line;	}
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	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;
	}
	}
	}
1527
1528	line = cfg->theLines;	/* If we find a generic config option which should live at the
1529	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	top of the file, move it there. Old versions of grubby were
1530	while (line) {	probably responsible for putting new images in the wrong
1531	if (line->type == LT_SET_VARIABLE && defaultKw &&	place in front of it anyway. */
1532	line->numElements == 3 &&	if (sawEntry && line->type == LT_GENERIC) {
1533	!strcmp(line->elements[1].item, defaultKw->key)) {	struct singleLine **l = &cfg->theLines;
1534	writeDefault(out, line->indent, line->elements[0].indent, cfg);	struct singleLine **last_nonws = &cfg->theLines;
1535	needs &= ~MAIN_DEFAULT;	while (*l) {
1536	} else if (line->type == LT_DEFAULT) {	if ((*l)->type != LT_WHITESPACE)
1537	writeDefault(out, line->indent, line->elements[0].indent, cfg);	last_nonws = &((*l)->next);
1538	needs &= ~MAIN_DEFAULT;	l = &((*l)->next);
1539	} else if (line->type == LT_FALLBACK) {	}
1540	if (cfg->fallbackImage > -1)	line->next = *last_nonws;
1541	fprintf(out, "%s%s%s%d\n", line->indent,	*last_nonws = line;
1542	line->elements[0].item, line->elements[0].indent,	movedLine = 1;
1543	cfg->fallbackImage);	continue; /* without setting 'last' */
1544	} 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;
	}
	}
1545
1546	line = line->next;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1558	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1559	needs &= ~MAIN_DEFAULT;	entry->lines = line;
1560	}	else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	i = 0;	/* we could have seen this outside of an entry... if
1566	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1567	if (entry->skip) continue;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	line = entry->lines;	last = line;
	while (line) {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
1580	}	}
	}
1581
1582	if (tmpOutName) {	free(incoming);
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
	}
	}
1583
1584	return 0;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697	}	}
1698
1699	static int numEntries(struct grubConfig *cfg) {	static void writeDefault(FILE * out, char *indent,
1700	int i = 0;	char *separator, struct grubConfig *cfg)
1701	struct singleEntry * entry;	{
1702		struct singleEntry *entry;
1703	entry = cfg->entries;	struct singleLine *line;
1704	while (entry) {	int i;
1705	if (!entry->skip)
1706	i++;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	entry = entry->next;	return;
1708	}
1709	return i;	if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		entry = findEntryByIndex(cfg, cfg->defaultImage);
1716		line = getLineByType(LT_MENUENTRY, entry->lines);
1717		if (!line)
1718		line = getLineByType(LT_TITLE, entry->lines);
1719		if (line) {
1720		title = extractTitle(cfg, line);
1721		if (title)
1722		cfg->cfi->setEnv(cfg->cfi,
1723		"saved_entry", title);
1724		}
1725		}
1726		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1727		if (cfg->cfi->defaultIsIndex) {
1728		if (cfg->cfi->defaultIsVariable) {
1729		fprintf(out, "%sset default=\"%d\"\n", indent,
1730		cfg->defaultImage);
1731		} else {
1732		fprintf(out, "%sdefault%s%d\n", indent,
1733		separator, cfg->defaultImage);
1734		}
1735		} else {
1736		int image = cfg->defaultImage;
1737
1738		entry = cfg->entries;
1739		while (entry && entry->skip)
1740		entry = entry->next;
1741
1742		i = 0;
1743		while (entry && i < image) {
1744		entry = entry->next;
1745
1746		while (entry && entry->skip)
1747		entry = entry->next;
1748		i++;
1749		}
1750
1751		if (!entry)
1752		return;
1753
1754		line = getLineByType(LT_TITLE, entry->lines);
1755
1756		if (line && line->numElements >= 2)
1757		fprintf(out, "%sdefault%s%s\n", indent,
1758		separator, line->elements[1].item);
1759		else if (line && (line->numElements == 1)
1760		&& cfg->cfi->titleBracketed) {
1761		char *title = extractTitle(cfg, line);
1762		if (title) {
1763		fprintf(out, "%sdefault%s%s\n", indent,
1764		separator, title);
1765		free(title);
1766		}
1767		}
1768		}
1769		}
1770		}
1771
1772		static int writeConfig(struct grubConfig *cfg, char *outName,
1773		const char *prefix)
1774		{
1775		FILE *out;
1776		struct singleLine *line;
1777		struct singleEntry *entry;
1778		char *tmpOutName;
1779		int needs = MAIN_DEFAULT;
1780		struct stat sb;
1781		int i;
1782
1783		if (!strcmp(outName, "-")) {
1784		out = stdout;
1785		tmpOutName = NULL;
1786		} else {
1787		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1788		char *buf;
1789		int len = 256;
1790		int rc;
1791
1792		/* most likely the symlink is relative, so change our
1793		directory to the dir of the symlink */
1794		char *dir = strdupa(outName);
1795		rc = chdir(dirname(dir));
1796		do {
1797		buf = alloca(len + 1);
1798		rc = readlink(basename(outName), buf, len);
1799		if (rc == len)
1800		len += 256;
1801		} while (rc == len);
1802
1803		if (rc < 0) {
1804		fprintf(stderr,
1805		_
1806		("grubby: error readlink link %s: %s\n"),
1807		outName, strerror(errno));
1808		return 1;
1809		}
1810
1811		outName = buf;
1812		outName[rc] = '\0';
1813		}
1814
1815		tmpOutName = alloca(strlen(outName) + 2);
1816		sprintf(tmpOutName, "%s-", outName);
1817		out = fopen(tmpOutName, "w");
1818		if (!out) {
1819		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1820		tmpOutName, strerror(errno));
1821		return 1;
1822		}
1823
1824		if (!stat(outName, &sb)) {
1825		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1826		fprintf(stderr,
1827		_
1828		("grubby: error setting perms on %s: %s\n"),
1829		tmpOutName, strerror(errno));
1830		fclose(out);
1831		unlink(tmpOutName);
1832		return 1;
1833		}
1834		}
1835		}
1836
1837		line = cfg->theLines;
1838		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1839		while (line) {
1840		if (line->type == LT_SET_VARIABLE && defaultKw &&
1841		line->numElements == 3 &&
1842		!strcmp(line->elements[1].item, defaultKw->key) &&
1843		!is_special_grub2_variable(line->elements[2].item)) {
1844		writeDefault(out, line->indent,
1845		line->elements[0].indent, cfg);
1846		needs &= ~MAIN_DEFAULT;
1847		} else if (line->type == LT_DEFAULT) {
1848		writeDefault(out, line->indent,
1849		line->elements[0].indent, cfg);
1850		needs &= ~MAIN_DEFAULT;
1851		} else if (line->type == LT_FALLBACK) {
1852		if (cfg->fallbackImage > -1)
1853		fprintf(out, "%s%s%s%d\n", line->indent,
1854		line->elements[0].item,
1855		line->elements[0].indent,
1856		cfg->fallbackImage);
1857		} else {
1858		if (lineWrite(out, line, cfg->cfi) == -1) {
1859		fprintf(stderr,
1860		_("grubby: error writing %s: %s\n"),
1861		tmpOutName, strerror(errno));
1862		fclose(out);
1863		unlink(tmpOutName);
1864		return 1;
1865		}
1866		}
1867
1868		line = line->next;
1869		}
1870
1871		if (needs & MAIN_DEFAULT) {
1872		writeDefault(out, cfg->primaryIndent, "=", cfg);
1873		needs &= ~MAIN_DEFAULT;
1874		}
1875
1876		i = 0;
1877		while ((entry = findEntryByIndex(cfg, i++))) {
1878		if (entry->skip)
1879		continue;
1880
1881		line = entry->lines;
1882		while (line) {
1883		if (lineWrite(out, line, cfg->cfi) == -1) {
1884		fprintf(stderr,
1885		_("grubby: error writing %s: %s\n"),
1886		tmpOutName, strerror(errno));
1887		fclose(out);
1888		unlink(tmpOutName);
1889		return 1;
1890		}
1891		line = line->next;
1892		}
1893		}
1894
1895		if (tmpOutName) {
1896		if (rename(tmpOutName, outName)) {
1897		fprintf(stderr,
1898		_("grubby: error moving %s to %s: %s\n"),
1899		tmpOutName, outName, strerror(errno));
1900		unlink(outName);
1901		return 1;
1902		}
1903		}
1904
1905		return 0;
1906		}
1907
1908		static int numEntries(struct grubConfig *cfg)
1909		{
1910		int i = 0;
1911		struct singleEntry *entry;
1912
1913		entry = cfg->entries;
1914		while (entry) {
1915		if (!entry->skip)
1916		i++;
1917		entry = entry->next;
1918		}
1919		return i;
1920	}	}
1921
1922	static char *findDiskForRoot()	static char *findDiskForRoot()
1923	{	{
1924	int fd;	int fd;
1925	char buf[65536];	char buf[65536];
1926	char *devname;	char *devname;
1927	char *chptr;	char *chptr;
1928	int rc;	int rc;
1929
1930		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1931		fprintf(stderr, "grubby: failed to open %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		return NULL;
1934		}
1935
1936		rc = read(fd, buf, sizeof(buf) - 1);
1937		if (rc <= 0) {
1938		fprintf(stderr, "grubby: failed to read %s: %s\n",
1939		_PATH_MOUNTED, strerror(errno));
1940		close(fd);
1941		return NULL;
1942		}
1943		close(fd);
1944		buf[rc] = '\0';
1945		chptr = buf;
1946
1947	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1948
1949	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1950	if (rc <= 0) {	devname = chptr;
1951	fprintf(stderr, "grubby: failed to read %s: %s\n",
1952	_PATH_MOUNTED, strerror(errno));	/*
1953	close(fd);	* The first column of a mtab entry is the device, but if the
1954	return NULL;	* entry is a special device it won't start with /, so move
1955	}	* on to the next line.
1956	close(fd);	*/
1957	buf[rc] = '\0';	if (*devname != '/') {
1958	chptr = buf;	chptr = strchr(chptr, '\n');
1959		if (chptr)
1960	while (chptr && chptr != buf+rc) {	chptr++;
1961	devname = chptr;	continue;
1962		}
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/*
	* 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++;
	}
1963
1964	return NULL;	/* Seek to the next space */
1965		chptr = strchr(chptr, ' ');
1966		if (!chptr) {
1967		fprintf(stderr, "grubby: error parsing %s: %s\n",
1968		_PATH_MOUNTED, strerror(errno));
1969		return NULL;
1970		}
1971
1972		/*
1973		* The second column of a mtab entry is the mount point, we
1974		* are looking for '/' obviously.
1975		*/
1976		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1977		/* remember the last / entry in mtab */
1978		foundanswer = devname;
1979		}
1980
1981		/* Next line */
1982		chptr = strchr(chptr, '\n');
1983		if (chptr)
1984		chptr++;
1985		}
1986
1987		/* Return the last / entry found */
1988		if (foundanswer) {
1989		chptr = strchr(foundanswer, ' ');
1990		*chptr = '\0';
1991		return strdup(foundanswer);
1992		}
1993
1994		return NULL;
1995	}	}
1996
1997	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
1998	int i;	{
1999	struct singleLine * line;	int i;
2000		struct singleLine *line;
2001
2002	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2003	fprintf(stderr, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2004	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2005	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2006	* menuentry when read it. */	* menuentry when read it. */
2007	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2008	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2009	fprintf(stderr, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2010	else	line->elements[i].item);
2011	fprintf(stderr, "%s", line->elements[i].item);	else
2012	fprintf(stderr, "%s", line->elements[i].indent);	log_message(f, "%s",
2013		line->elements[i].item);
2014	continue;	log_message(f, "%s", line->elements[i].indent);
2015	}
2016		continue;
2017	fprintf(stderr, "%s%s",	}
2018	line->elements[i].item, line->elements[i].indent);
2019		log_message(f, "%s%s",
2020		line->elements[i].item,
2021		line->elements[i].indent);
2022		}
2023		log_message(f, "\n");
2024	}	}
	fprintf(stderr, "\n");
	}
2025	}	}
2026
2027	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2028		...)
2029	{	{
2030	va_list argp;	static int once;
2031		va_list argp, argq;
2032
2033	if (!debug)	va_start(argp, fmt);
	return;
2034
2035	va_start(argp, fmt);	va_copy(argq, argp);
2036	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2037	vfprintf(stderr, fmt, argp);	log_time(NULL);
2038	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2039	va_end(argp);	}
2040		log_message(NULL, "DBG: Image entry %s: ",
2041		okay ? "succeeded" : "failed");
2042		log_vmessage(NULL, fmt, argq);
2043
2044		printEntry(entry, NULL);
2045		va_end(argq);
2046
2047		if (!debug) {
2048		once = 1;
2049		va_end(argp);
2050		return;
2051		}
2052
2053		if (okay) {
2054		va_end(argp);
2055		return;
2056		}
2057
2058		if (!once)
2059		log_message(stderr, "DBG: command line: %s\n",
2060		saved_command_line);
2061		once = 1;
2062		fprintf(stderr, "DBG: Image entry failed: ");
2063		vfprintf(stderr, fmt, argp);
2064		printEntry(entry, stderr);
2065		va_end(argp);
2066	}	}
2067
2068	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1561  static int endswith(const char *s, char	Line 2078  static int endswith(const char *s, char
2078	return s[slen] == c;	return s[slen] == c;
2079	}	}
2080
2081	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2082	int skipRemoved, int flags) {	int skipRemoved, int flags)
2083	struct singleLine * line;	{
2084	char * fullName;	struct singleLine *line;
2085	int i;	char *fullName;
2086	char * dev;	int i;
2087	char * rootspec;	char *dev;
2088	char * rootdev;	char *rootspec;
2089		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2090
2091	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2092	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2093	notSuitablePrintf(entry, "no line found\n");	return 0;
2094	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2095
2096	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2097		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2098		entry->lines);
2099		if (!line) {
2100		notSuitablePrintf(entry, 0, "no line found\n");
2101		return 0;
2102		}
2103		if (line->numElements < 2) {
2104		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2105		line->numElements);
2106		return 0;
2107		}
2108
2109	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2110	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2111	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2112	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2113
2114	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2115	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2116		rootspec = getRootSpecifier(line->elements[1].item);
2117		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2118		int hasslash = endswith(bootPrefix, '/') ||
2119		beginswith(line->elements[1].item + rootspec_offset, '/');
2120		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2121		line->elements[1].item + rootspec_offset);
2122		if (access(fullName, R_OK)) {
2123		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2124		return 0;
2125		}
2126		for (i = 2; i < line->numElements; i++)
2127		if (!strncasecmp(line->elements[i].item, "root=", 5))
2128		break;
2129		if (i < line->numElements) {
2130		dev = line->elements[i].item + 5;
2131	} else {	} else {
2132	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2133	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2134	*/
2135	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2136		dev = line->elements[1].item;
2137	/* failed to find one */	} else {
2138	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2139	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2140	return 0;	* for the args, so check that too.
2141	}	*/
2142		line =
2143	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2144	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2145	if (i < line->numElements)
2146	dev = line->elements[i].item + 5;	/* failed to find one */
2147	else {	if (!line) {
2148	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2149	/* it failed too...  can't find root= */	return 0;
2150	return 0;	}
2151	}
2152		for (i = 1; i < line->numElements; i++)
2153		if (!strncasecmp
2154		(line->elements[i].item, "root=", 5))
2155		break;
2156		if (i < line->numElements)
2157		dev = line->elements[i].item + 5;
2158		else {
2159		notSuitablePrintf(entry, 0,
2160		"no root= entry found\n");
2161		/* it failed too...  can't find root= */
2162		return 0;
2163		}
2164		}
2165	}	}
	}
2166
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2167	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2168		if (!getpathbyspec(dev)) {
2169		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2170		dev);
2171		return 0;
2172		} else
2173		dev = getpathbyspec(dev);
2174
2175	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2176	if (!rootdev) {	if (!rootdev) {
2177	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2178	return 0;	return 0;
2179	}	}
2180
2181	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2182	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2183	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2184	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2185	return 0;	free(rootdev);
2186	}	return 0;
2187		}
2188
2189	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2190	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2191	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2192	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2193	return 0;	free(rootdev);
2194	}	return 0;
2195		}
2196
2197	free(rootdev);	free(rootdev);
2198		notSuitablePrintf(entry, 1, "\n");
2199
2200	return 1;	return 1;
2201	}	}
2202
2203	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2204	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2205	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2206	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2207	int * index) {	int *index)
2208	struct singleEntry * entry = NULL;	{
2209	struct singleLine * line;	struct singleEntry *entry = NULL;
2210	int i;	struct singleLine *line;
2211	char * chptr;	int i;
2212	char * rootspec = NULL;	char *chptr;
2213	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2214		enum lineType_e checkType = LT_KERNEL;
2215	if (isdigit(*kernel)) {
2216	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2217		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2218
2219		i = 0;
2220		indexVars[i] = strtol(kernel, &chptr, 10);
2221		while (*chptr == ',') {
2222		i++;
2223		kernel = chptr + 1;
2224		indexVars[i] = strtol(kernel, &chptr, 10);
2225		}
2226
2227	i = 0;	if (*chptr) {
2228	indexVars[i] = strtol(kernel, &chptr, 10);	/* can't parse it, bail */
2229	while (*chptr == ',') {	return NULL;
2230	i++;	}
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2231
2232	if (*chptr) {	indexVars[i + 1] = -1;
	/* can't parse it, bail */
	return NULL;
	}
2233
2234	indexVars[i + 1] = -1;	i = 0;
2235		if (index) {
2236	i = 0;	while (i < *index) {
2237	if (index) {	i++;
2238	while (i < *index) i++;	if (indexVars[i] == -1)
2239	if (indexVars[i] == -1) return NULL;	return NULL;
2240	}	}
2241		}
2242
2243	entry = findEntryByIndex(config, indexVars[i]);	entry = findEntryByIndex(config, indexVars[i]);
2244	if (!entry) return NULL;	if (!entry)
2245		return NULL;
2246
2247		line =
2248		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2249		LT_KERNEL_16, entry->lines);
2250		if (!line)
2251		return NULL;
2252
2253		if (index)
2254		*index = indexVars[i];
2255		return entry;
2256		}
2257
2258		if (!strcmp(kernel, "DEFAULT")) {
2259		if (index && *index > config->defaultImage) {
2260		entry = NULL;
2261		} else {
2262		entry = findEntryByIndex(config, config->defaultImage);
2263		if (entry && entry->skip)
2264		entry = NULL;
2265		else if (index)
2266		*index = config->defaultImage;
2267		}
2268		} else if (!strcmp(kernel, "ALL")) {
2269		if (index)
2270		i = *index;
2271		else
2272		i = 0;
2273
2274	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2275	if (!line) return NULL;	if (!entry->skip)
2276		break;
2277		i++;
2278		}
2279
2280	if (index) *index = indexVars[i];	if (entry && index)
2281	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2282	} else {	} else {
2283	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2284	if (entry && entry->skip)	i = *index;
2285	entry = NULL;	else
2286	else if (index)	i = 0;
2287	*index = config->defaultImage;
2288	}	if (!strncmp(kernel, "TITLE=", 6)) {
2289	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2290	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2291	i = *index;	kernel += 6;
2292	else	}
2293	i = 0;
2294		for (entry = findEntryByIndex(config, i); entry;
2295		entry = entry->next, i++) {
2296		if (entry->skip)
2297		continue;
2298
2299		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2300		checkType, kernel, entry);
2301
2302		/* check all the lines matching checkType */
2303		for (line = entry->lines; line; line = line->next) {
2304		enum lineType_e ct = checkType;
2305		if (entry->multiboot && checkType == LT_KERNEL)
2306		ct = LT_KERNEL | LT_KERNEL_EFI |
2307		LT_MBMODULE | LT_HYPER |
2308		LT_KERNEL_16;
2309		else if (checkType & LT_KERNEL)
2310		ct = checkType | LT_KERNEL_EFI |
2311		LT_KERNEL_16;
2312		line = getLineByType(ct, line);
2313		if (!line)
2314		break; /* not found in this entry */
2315
2316		if (line && line->type != LT_MENUENTRY &&
2317		line->numElements >= 2) {
2318		rootspec =
2319		getRootSpecifier(line->elements[1].
2320		item);
2321		if (!strcmp
2322		(line->elements[1].item +
2323		((rootspec !=
2324		NULL) ? strlen(rootspec) : 0),
2325		kernel + strlen(prefix)))
2326		break;
2327		}
2328		if (line->type == LT_MENUENTRY &&
2329		!strcmp(line->elements[1].item, kernel))
2330		break;
2331		}
2332
2333		/* make sure this entry has a kernel identifier; this skips
2334		* non-Linux boot entries (could find netbsd etc, though, which is
2335		* unfortunate)
2336		*/
2337		if (line
2338		&& getLineByType(LT_KERNEL | LT_HYPER |
2339		LT_KERNEL_EFI | LT_KERNEL_16,
2340		entry->lines))
2341		break; /* found 'im! */
2342		}
2343
2344	while ((entry = findEntryByIndex(config, i))) {	if (index)
2345	if (!entry->skip) break;	*index = i;
	i++;
2346	}	}
2347
2348	if (entry && index)	return entry;
2349	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2350
2351	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2352	prefix = "";	int *index)
2353	checkType = LT_TITLE|LT_MENUENTRY;	{
2354	kernel += 6;	struct singleEntry *entry;
2355	}	struct singleLine *line;
2356		int i;
2357	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2358	if (entry->skip) continue;
2359		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2360	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2361		continue;
2362	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
2363	for (line = entry->lines; line; line = line->next) {	if (!line)
2364	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	line = getLineByType(LT_MENUENTRY, entry->lines);
2365	LT_KERNEL|LT_MBMODULE|LT_HYPER :	if (!line)
2366	checkType, line);	continue;
2367	if (!line) break;  /* not found in this entry */	newtitle = grub2ExtractTitle(line);
2368		if (!newtitle)
2369	if (line && line->type != LT_MENUENTRY &&	continue;
2370	line->numElements >= 2) {	if (!strcmp(title, newtitle))
	rootspec = getRootSpecifier(line->elements[1].item);
	if (!strcmp(line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0),
	kernel + strlen(prefix)))
2371	break;	break;
	}
	if(line->type == LT_MENUENTRY &&
	!strcmp(line->elements[1].item, kernel))
	break;
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2372	}	}
2373
2374	if (index) *index = i;	if (!entry)
2375	}	return NULL;
2376
2377	return entry;	if (index)
2378		*index = i;
2379		return entry;
2380	}	}
2381
2382	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2383	struct singleEntry * entry;	{
2384		struct singleEntry *entry;
2385
2386	entry = cfg->entries;	entry = cfg->entries;
2387	while (index && entry) {	while (index && entry) {
2388	entry = entry->next;	entry = entry->next;
2389	index--;	index--;
2390	}	}
2391
2392	return entry;	return entry;
2393	}	}
2394
2395	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1803  struct singleEntry * findEntryByIndex(st	Line 2397  struct singleEntry * findEntryByIndex(st
2397	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2398	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2399	* bail. */	* bail. */
2400	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2401	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2402	struct singleEntry * entry, * entry2;	{
2403	int index;	struct singleEntry *entry, *entry2;
2404		int index;
2405	if (cfg->defaultImage > -1) {
2406	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2407	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2408	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2409	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2410		if (defTitle) {
2411		int index = 0;
2412		if (isnumber(defTitle)) {
2413		index = atoi(defTitle);
2414		entry = findEntryByIndex(cfg, index);
2415		} else {
2416		entry =
2417		findEntryByTitle(cfg, defTitle,
2418		&index);
2419		}
2420		if (entry
2421		&& suitableImage(entry, prefix, skipRemoved,
2422		flags)) {
2423		cfg->defaultImage = index;
2424		if (indexPtr)
2425		*indexPtr = index;
2426		return entry;
2427		}
2428		}
2429		}
2430		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2431		entry = findEntryByIndex(cfg, cfg->defaultImage);
2432		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2433		if (indexPtr)
2434		*indexPtr = cfg->defaultImage;
2435		return entry;
2436		}
2437	}	}
	}
2438
2439	index = 0;	index = 0;
2440	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2441	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2442	int j;	int j;
2443	for (j = 0; j < index; j++) {	for (j = 0; j < index; j++) {
2444	entry2 = findEntryByIndex(cfg, j);	entry2 = findEntryByIndex(cfg, j);
2445	if (entry2->skip) index--;	if (entry2->skip)
2446	}	index--;
2447	if (indexPtr) *indexPtr = index;	}
2448		if (indexPtr)
2449		*indexPtr = index;
2450
2451		return entry;
2452		}
2453
2454	return entry;	index++;
2455	}	}
2456
2457	index++;	fprintf(stderr,
2458	}	_("grubby fatal error: unable to find a suitable template\n"));
	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));
2459
2460	return NULL;	return NULL;
2461	}	}
2462
2463	char * findBootPrefix(void) {	char *findBootPrefix(void)
2464	struct stat sb, sb2;	{
2465		struct stat sb, sb2;
2466
2467	stat("/", &sb);	stat("/", &sb);
2468	#ifdef __ia64__	#ifdef __ia64__
2469	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2470	#else	#else
2471	stat("/boot", &sb2);	stat("/boot", &sb2);
2472	#endif	#endif
2473
2474	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2475	return strdup("");	return strdup("");
2476
2477	#ifdef __ia64__	#ifdef __ia64__
2478	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2479	#else	#else
2480	return strdup("/boot");	return strdup("/boot");
2481	#endif	#endif
2482	}	}
2483
2484	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2485	const char * prefix) {	const char *prefix)
2486	struct singleEntry * entry;	{
2487		struct singleEntry *entry;
	if (!image)
	return;
	/* check and see if we're removing the default image */
	if (isdigit(*image)) {
	entry = findEntryByPath(cfg, image, prefix, NULL);
	if(entry)
	entry->skip = 1;
	return;
	}
2488
2489	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2490	entry->skip = 1;	return;
	}
2491
2492	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2493	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2494	const char * prefix, int flags) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2495	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2496	int i, j;	entry->skip = 1;
2497		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2498	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2499
2500	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2501	/* we can preserve the default */	entry->skip = 1;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2502	}	}
2503
2504	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isUserSpecifiedKernelPath,
2505	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2506	int j;	const char *prefix, int flags, int newDefaultBootEntryIndex)
2507		{
2508	if (config->fallbackImage == -1) return;	struct singleEntry *entry, *entry2, *newDefault;
2509		int i, j;
	entry = findEntryByIndex(config, config->fallbackImage);
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
	if (hasNew)
	config->fallbackImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2510
2511	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (newBootEntryIsDefault) {
2512	struct singleLine * line;	config->defaultImage = FIRST_ENTRY_INDEX;
2513	char * root = NULL;	return;
2514	int i;	} else if ((newDefaultBootEntryIndex >= 0) && config->cfi->defaultIsIndex) {
2515		if (findEntryByIndex(config, newDefaultBootEntryIndex))
2516	printf("index=%d\n", index);	config->defaultImage = newDefaultBootEntryIndex;
2517		else
2518	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	config->defaultImage = NO_DEFAULT_ENTRY;
2519	if (!line) {	return;
2520	printf("non linux entry\n");	} else if (defaultKernelPath) {
2521	return;	i = 0;
2522	}	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
2523		config->defaultImage = i;
2524		} else {
2525		config->defaultImage = NO_DEFAULT_ENTRY;
2526		return;
2527		}
2528		}
2529
2530	printf("kernel=%s%s\n", prefix, line->elements[1].item);	/* defaultImage now points to what we'd like to use, but before any
2531		* order changes */
2532		if ((config->defaultImage == DEFAULT_SAVED) ||
2533		(config->defaultImage == DEFAULT_SAVED_GRUB2))
2534		/* default is set to saved, we don't want to change it */
2535		return;
2536
2537	if (line->numElements >= 3) {	if (config->defaultImage >= FIRST_ENTRY_INDEX)
2538	printf("args=\"");	entry = findEntryByIndex(config, config->defaultImage);
2539	i = 2;	else
2540	while (i < line->numElements) {	entry = NULL;
	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);
	}
2541
2542	i++;	if (entry && !entry->skip) {
2543		/* we can preserve the default */
2544		if (isUserSpecifiedKernelPath)
2545		config->defaultImage++;
2546
2547		/* count the number of entries erased before this one */
2548		for (j = 0; j < config->defaultImage; j++) {
2549		entry2 = findEntryByIndex(config, j);
2550		if (entry2->skip)
2551		config->defaultImage--;
2552		}
2553		} else if (isUserSpecifiedKernelPath) {
2554		config->defaultImage = FIRST_ENTRY_INDEX;
2555		} else {
2556		/* Either we just erased the default (or the default line was
2557		* bad to begin with) and didn't put a new one in. We'll use
2558		* the first valid image. */
2559		newDefault =
2560		findTemplate(config, prefix, &config->defaultImage, 1,
2561		flags);
2562		if (!newDefault)
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564	}	}
2565	printf("\"\n");	}
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
	printf("args=\"");
	i = 1;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2566
2567	printf("%s%s", s, line->elements[i].indent);	void setFallbackImage(struct grubConfig *config, int hasNew)
2568	}	{
2569		struct singleEntry *entry, *entry2;
2570		int j;
2571
2572	i++;	if (config->fallbackImage == -1)
2573	}	return;
2574
2575	s = line->elements[i - 1].indent;	entry = findEntryByIndex(config, config->fallbackImage);
2576	printf("\"\n");	if (!entry || entry->skip) {
2577		config->fallbackImage = -1;
2578		return;
2579	}	}
	}
2580
2581	if (!root) {	if (hasNew)
2582	line = getLineByType(LT_ROOT, entry->lines);	config->fallbackImage++;
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2583
2584	if (root) {	/* count the number of entries erased before this one */
2585	char * s = alloca(strlen(root) + 1);	for (j = 0; j < config->fallbackImage; j++) {
2586		entry2 = findEntryByIndex(config, j);
2587	strcpy(s, root);	if (entry2->skip)
2588	if (s[strlen(s) - 1] == '"')	config->fallbackImage--;
2589	s[strlen(s) - 1] = '\0';	}
2590	/* make sure the root doesn't have a trailing " */	}
	printf("root=%s\n", s);
	}
2591
2592	line = getLineByType(LT_INITRD, entry->lines);	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2593		{
2594		struct singleLine *line;
2595		char *root = NULL;
2596		int i;
2597		int j;
2598
2599	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");
	}
2600
2601	line = getLineByType(LT_TITLE, entry->lines);	line =
2602	if (line) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2603	printf("title=%s\n", line->elements[1].item);	entry->lines);
2604	} else {	if (!line) {
2605	char * title;	printf("non linux entry\n");
2606	line = getLineByType(LT_MENUENTRY, entry->lines);	return;
2607	title = grub2ExtractTitle(line);	}
	if (title)
	printf("title=%s\n", title);
	}
	}
2608
2609	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2610	FILE * in;	printf("kernel=%s\n", line->elements[1].item);
2611	char buf[1024];	else
2612	char * chptr;	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	char * start;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
2613
2614	fclose(in);	if (line->numElements >= 3) {
2615		printf("args=\"");
2616		i = 2;
2617		while (i < line->numElements) {
2618		if (!strncmp(line->elements[i].item, "root=", 5)) {
2619		root = line->elements[i].item + 5;
2620		} else {
2621		printf("%s%s", line->elements[i].item,
2622		line->elements[i].indent);
2623		}
2624
2625	return 0;	i++;
2626	}	}
2627		printf("\"\n");
2628		} else {
2629		line = getLineByType(LT_KERNELARGS, entry->lines);
2630		if (line) {
2631		char *s;
2632
2633		printf("args=\"");
2634		i = 1;
2635		while (i < line->numElements) {
2636		if (!strncmp
2637		(line->elements[i].item, "root=", 5)) {
2638		root = line->elements[i].item + 5;
2639		} else {
2640		s = line->elements[i].item;
2641
2642	void dumpSysconfigGrub(void) {	printf("%s%s", s,
2643	char * boot;	line->elements[i].indent);
2644	int lba;	}
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
	}
2645
2646	int displayInfo(struct grubConfig * config, char * kernel,	i++;
2647	const char * prefix) {	}
	int i = 0;
	struct singleEntry * entry;
	struct singleLine * line;
	entry = findEntryByPath(config, kernel, prefix, &i);
	if (!entry) {
	fprintf(stderr, _("grubby: kernel not found\n"));
	return 1;
	}
2648
2649	/* this is a horrible hack to support /etc/conf.d/grub; there must	s = line->elements[i - 1].indent;
2650	be a better way */	printf("\"\n");
2651	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);
2652	}	}
2653
2654	line = getLineByType(LT_LBA, config->theLines);	if (!root) {
2655	if (line) printf("lba\n");	line = getLineByType(LT_ROOT, entry->lines);
2656	}	if (line && line->numElements >= 2)
2657		root = line->elements[1].item;
2658	displayEntry(entry, prefix, i);	}
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
	i++;
	}
2659
2660	return 0;	if (root) {
2661	}	char *s = alloca(strlen(root) + 1);
2662
2663	struct singleLine * addLineTmpl(struct singleEntry * entry,	strcpy(s, root);
2664	struct singleLine * tmplLine,	if (s[strlen(s) - 1] == '"')
2665	struct singleLine * prevLine,	s[strlen(s) - 1] = '\0';
2666	const char * val,	/* make sure the root doesn't have a trailing " */
2667	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);
	}
2668	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
2669
2670	if (!entry->lines) {	line =
2671	/* first one on the list */	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2672	entry->lines = newLine;	entry->lines);
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2673
2674	return newLine;	if (line && line->numElements >= 2) {
2675	}	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2676		printf("initrd=");
2677		else
2678		printf("initrd=%s", prefix);
2679
2680	/* val may be NULL */	for (i = 1; i < line->numElements; i++)
2681	struct singleLine *  addLine(struct singleEntry * entry,	printf("%s%s", line->elements[i].item,
2682	struct configFileInfo * cfi,	line->elements[i].indent);
2683	enum lineType_e type, char * defaultIndent,	printf("\n");
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
2684	}	}
	}
	/* The last non-empty line gives us the indention to us and the line
	to insert after. Note that comments are considered empty lines, which
	may not be ideal? If there are no lines or we are looking at the
	first line, we use defaultIndent (the first line is normally indented
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
2685
2686	struct singleLine *menuEntry;	line = getLineByType(LT_TITLE, entry->lines);
2687	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	if (line) {
2688	if (tmpl.type == LT_ENTRY_END) {	printf("title=%s\n", line->elements[1].item);
2689	if (menuEntry)	} else {
2690	tmpl.indent = menuEntry->indent;	char *title;
2691	else	line = getLineByType(LT_MENUENTRY, entry->lines);
2692	tmpl.indent = defaultIndent ?: "";	if (line) {
2693	} else if (tmpl.type != LT_MENUENTRY) {	title = grub2ExtractTitle(line);
2694	if (menuEntry)	if (title)
2695	tmpl.indent = "\t";	printf("title=%s\n", title);
2696	else if (prev == entry->lines)	}
2697	tmpl.indent = defaultIndent ?: "";	}
	else
	tmpl.indent = prev->indent;
	}
2698
2699	return addLineTmpl(entry, &tmpl, prev, val, cfi);	for (j = 0, line = entry->lines; line; line = line->next) {
2700		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2701		if (!strncmp
2702		(prefix, line->elements[1].item, strlen(prefix)))
2703		printf("mbmodule%d=", j);
2704		else
2705		printf("mbmodule%d=%s", j, prefix);
2706
2707		for (i = 1; i < line->numElements; i++)
2708		printf("%s%s", line->elements[i].item,
2709		line->elements[i].indent);
2710		printf("\n");
2711		j++;
2712		}
2713		}
2714	}	}
2715
2716	void removeLine(struct singleEntry * entry, struct singleLine * line) {	int isSuseSystem(void)
2717	struct singleLine * prev;	{
2718	int i;	const char *path;
2719		const static char default_path[] = "/etc/SuSE-release";
	for (i = 0; i < line->numElements; i++) {
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2720
2721	if (line == entry->lines) {	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2722	entry->lines = line->next;	path = default_path;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2723
2724	free(line);	if (!access(path, R_OK))
2725		return 1;
2726		return 0;
2727	}	}
2728
2729	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int isSuseGrubConf(const char *path)
2730	{	{
2731	struct singleLine newLine = {	FILE *grubConf;
2732	.indent = tmplLine->indent,	char *line = NULL;
2733	.type = tmplLine->type,	size_t len = 0, res = 0;
2734	.next = tmplLine->next,
2735	};	grubConf = fopen(path, "r");
2736	int firstQuotedItem = -1;	if (!grubConf) {
2737	int quoteLen = 0;	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2738	int j;	path);
2739	int element = 0;	return 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;
	}
2740	}	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
2741
2742	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	while ((res = getline(&line, &len, grubConf)) != -1) {
2743	/* move the end-of-line forward */	if (!strncmp(line, "setup", 5)) {
2744	line->elements[insertHere].indent =	fclose(grubConf);
2745	line->elements[insertHere-1].indent;	free(line);
2746	line->elements[insertHere-1].indent = strdup(indent);	return 1;
2747	} else {	}
2748	line->elements[insertHere].indent = strdup(indent);	}
	}
2749
2750	line->numElements++;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2751		path);
2752
2753	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	fclose(grubConf);
2754	line->elements[0].item,	free(line);
2755	line->elements[insertHere].item,	return 0;
	line->elements[insertHere].indent,
	insertHere);
2756	}	}
2757
2758	static void removeElement(struct singleLine * line, int removeHere) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2759	int i;	{
2760		FILE *grubConf;
2761	/* sanity check */	char *line = NULL;
2762	if (removeHere >= line->numElements) return;	size_t res = 0, len = 0;
	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
	removeHere, line->elements[removeHere].item);
2763
2764	free(line->elements[removeHere].item);	if (!path)
2765		return 1;
2766		if (!lbaPtr)
2767		return 1;
2768
2769	if (removeHere > 1) {	grubConf = fopen(path, "r");
2770	/* previous argument gets this argument's post-indentation */	if (!grubConf)
2771	free(line->elements[removeHere-1].indent);	return 1;
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2772
2773	/* now collapse the array, but don't bother to realloc smaller */	while ((res = getline(&line, &len, grubConf)) != -1) {
2774	for (i = removeHere; i < line->numElements - 1; i++)	if (line[res - 1] == '\n')
2775	line->elements[i] = line->elements[i + 1];	line[res - 1] = '\0';
2776		else if (len > res)
2777	line->numElements--;	line[res] = '\0';
2778	}	else {
2779		line = realloc(line, res + 1);
2780	int argMatch(const char * one, const char * two) {	line[res] = '\0';
2781	char * first, * second;	}
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements;
	int doreplace;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
	}
	}
2782
2783	if (!removeArgs) {	if (!strncmp(line, "setup", 5)) {
2784	oldArgs = malloc(sizeof(*oldArgs));	if (strstr(line, "--force-lba")) {
2785	*oldArgs = NULL;	*lbaPtr = 1;
2786	} else {	} else {
2787	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	*lbaPtr = 0;
2788	fprintf(stderr,	}
2789	_("grubby: error separating arguments '%s'\n"), removeArgs);	dbgPrintf("lba: %i\n", *lbaPtr);
2790	free(newArgs);	break;
2791	return 1;	}
2792	}	}
	}
2793
2794		free(line);
2795		fclose(grubConf);
2796		return 0;
2797		}
2798
2799	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2800	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	{
2801		FILE *grubConf;
2802		char *line = NULL;
2803		size_t res = 0, len = 0;
2804		char *lastParamPtr = NULL;
2805		char *secLastParamPtr = NULL;
2806		char installDeviceNumber = '\0';
2807		char *bounds = NULL;
2808
2809	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	if (!path)
2810	&& !multibootArgs);	return 1;
2811		if (!devicePtr)
2812		return 1;
2813
2814	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	grubConf = fopen(path, "r");
2815		if (!grubConf)
2816		return 1;
2817
2818	if (multibootArgs && !entry->multiboot)	while ((res = getline(&line, &len, grubConf)) != -1) {
2819	continue;	if (strncmp(line, "setup", 5))
2820		continue;
2821
2822		if (line[res - 1] == '\n')
2823		line[res - 1] = '\0';
2824		else if (len > res)
2825		line[res] = '\0';
2826		else {
2827		line = realloc(line, res + 1);
2828		line[res] = '\0';
2829		}
2830
2831	/* Determine where to put the args.  If this config supports	lastParamPtr = bounds = line + res;
	* LT_KERNELARGS, use that.  Otherwise use
	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
	*/
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
	}
2832
2833	/* handle the elilo case which does:	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2834	*   append="hypervisor args -- kernel args"	while (!isspace(*lastParamPtr))
2835	*/	lastParamPtr--;
2836	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	lastParamPtr++;
2837	/* this is a multiboot entry, make sure there's
2838	* -- on the args line	secLastParamPtr = lastParamPtr - 2;
2839	*/	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2840	for (i = firstElement; i < line->numElements; i++) {
2841	if (!strcmp(line->elements[i].item, "--"))	if (lastParamPtr + 3 > bounds) {
2842	break;	dbgPrintf("lastParamPtr going over boundary");
2843	}	fclose(grubConf);
2844	if (i == line->numElements) {	free(line);
2845	/* assume all existing args are kernel args,	return 1;
2846	* prepend -- to make it official	}
2847		if (!strncmp(lastParamPtr, "(hd", 3))
2848		lastParamPtr += 3;
2849		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2850
2851		/*
2852		* Second last parameter will decide wether last parameter is
2853		* an IMAGE_DEVICE or INSTALL_DEVICE
2854	*/	*/
2855	insertElement(line, "--", firstElement, cfg->cfi);	while (!isspace(*secLastParamPtr))
2856	i = firstElement;	secLastParamPtr--;
2857	}	secLastParamPtr++;
2858	if (!multibootArgs) {
2859	/* kernel args start after the -- */	if (secLastParamPtr + 3 > bounds) {
2860	firstElement = i + 1;	dbgPrintf("secLastParamPtr going over boundary");
2861	}	fclose(grubConf);
2862	} else if (cfg->cfi->mbConcatArgs) {	free(line);
2863	/* this is a non-multiboot entry, remove hyper args */	return 1;
2864	for (i = firstElement; i < line->numElements; i++) {	}
2865	if (!strcmp(line->elements[i].item, "--"))	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2866	break;	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2867	}	secLastParamPtr += 3;
2868	if (i < line->numElements) {	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2869	/* remove args up to -- */	installDeviceNumber = *secLastParamPtr;
	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;
	}
	}
	if (i < line->numElements && doreplace) {
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
	/* root= replacement */
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
2870	} else {	} else {
2871	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	installDeviceNumber = *lastParamPtr;
	cfg->secondaryIndent, *arg + 5);
2872	}	}
	}
2873
2874	else {	*devicePtr = malloc(6);
2875	/* insert/append */	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2876	insertElement(line, *arg, i, cfg->cfi);	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2877	usedElements = realloc(usedElements, line->numElements *	fclose(grubConf);
2878	sizeof(*usedElements));	free(line);
2879	memmove(&usedElements[i + 1], &usedElements[i],	return 0;
	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);
2880	}	}
	}
2881
2882	free(newArgs);	free(line);
2883	free(oldArgs);	fclose(grubConf);
2884		return 1;
	return 0;
2885	}	}
2886
2887	int updateImage(struct grubConfig * cfg, const char * image,	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2888	const char * prefix, const char * addArgs,	{
2889	const char * removeArgs,	FILE *deviceMap;
2890	const char * addMBArgs, const char * removeMBArgs) {	char *line = NULL;
2891	int rc = 0;	size_t res = 0, len = 0;
2892		char *devicePtr;
2893	if (!image) return rc;	char *bounds = NULL;
2894		const char *path;
2895	/* update the main args first... */	const static char default_path[] = "/boot/grub/device.map";
2896	if (addArgs || removeArgs)
2897	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (!device)
2898	if (rc) return rc;	return 1;
2899		if (!bootPtr)
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
2900	return 1;	return 1;
	}
2901
2902	break;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2903	}	path = default_path;
2904
2905	return 0;	dbgPrintf("opening grub device.map file from: %s\n", path);
2906	}	deviceMap = fopen(path, "r");
2907		if (!deviceMap)
2908		return 1;
2909
2910	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
2911	int fd;	if (!strncmp(line, "#", 1))
2912	unsigned char bootSect[512];	continue;
2913	int offset;
2914		if (line[res - 1] == '\n')
2915	fd = open(device, O_RDONLY);	line[res - 1] = '\0';
2916	if (fd < 0) {	else if (len > res)
2917	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	line[res] = '\0';
2918	device, strerror(errno));	else {
2919	return 1;	line = realloc(line, res + 1);
2920	}	line[res] = '\0';
2921		}
2922
2923	if (read(fd, bootSect, 512) != 512) {	devicePtr = line;
2924	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	bounds = line + res;
	device, strerror(errno));
	return 1;
	}
	close(fd);
2925
2926	/* first three bytes should match, a jmp short should be in there */	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2927	if (memcmp(boot, bootSect, 3))	devicePtr++;
2928	return 0;	dbgPrintf("device: %s\n", devicePtr);
2929
2930		if (!strncmp(devicePtr, device, strlen(device))) {
2931		devicePtr += strlen(device);
2932		while (isspace(*devicePtr)
2933		&& ((devicePtr + 1) <= bounds))
2934		devicePtr++;
2935
2936	if (boot[1] == JMP_SHORT_OPCODE) {	*bootPtr = strdup(devicePtr);
2937	offset = boot[2] + 2;	break;
2938	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	}
2939	offset = (boot[3] << 8) + boot[2] + 2;	}
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	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;
	}
2940
2941	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	free(line);
2942		fclose(deviceMap);
2943	return 0;	return 0;
	return 2;
2944	}	}
2945
2946	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
2947	int fd;	{
2948	char buf[65536];	char *grubDevice;
	char * end;
	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 */
2949
2950	if (!strncmp(mdDev, "/dev/", 5))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
2951	mdDev += 5;	dbgPrintf("error looking for grub installation device\n");
2952		else
2953		dbgPrintf("grubby installation device: %s\n", grubDevice);
2954
2955	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
2956	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	dbgPrintf("error looking for grub boot device\n");
2957	strerror(errno));	else
2958	return 2;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	}
2959
2960	rc = read(fd, buf, sizeof(buf) - 1);	free(grubDevice);
2961	if (rc < 0 || rc == (sizeof(buf) - 1)) {	return 0;
2962	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	}
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2963
2964	chptr = buf;	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
2965	while (*chptr) {	{
2966	end = strchr(chptr, '\n');	/*
2967	if (!end) break;	* This SuSE grub configuration file at this location is not your
2968	*end = '\0';	* average grub configuration file, but instead the grub commands
2969		* used to setup grub on that system.
2970		*/
2971		const char *path;
2972		const static char default_path[] = "/etc/grub.conf";
2973
2974	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
2975	chptr[strlen(mdDev)] == ' ') {	path = default_path;
2976
2977	/* found the device */	if (!isSuseGrubConf(path))
2978	while (*chptr && *chptr != ':') chptr++;	return 1;
	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++;
	}
2979
2980	/*  we're good to go */	if (lbaPtr) {
2981	return 2;	*lbaPtr = 0;
2982		if (suseGrubConfGetLba(path, lbaPtr))
2983		return 1;
2984	}	}
2985
2986	chptr = end + 1;	if (bootPtr) {
2987	}	*bootPtr = NULL;
2988		suseGrubConfGetBoot(path, bootPtr);
2989		}
2990
2991	fprintf(stderr,	return 0;
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
2992	}	}
2993
2994	int checkForLilo(struct grubConfig * config) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
2995	int fd;	{
2996	unsigned char boot[512];	FILE *in;
2997	struct singleLine * line;	char buf[1024];
2998		char *chptr;
2999	for (line = config->theLines; line; line = line->next)	char *start;
3000	if (line->type == LT_BOOT) break;	char *param;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3001
3002	if (line->numElements != 2) return 1;	in = fopen("/etc/sysconfig/grub", "r");
3003		if (!in)
3004		return 1;
3005
3006	fd = open("/boot/boot.b", O_RDONLY);	if (lbaPtr)
3007	if (fd < 0) {	*lbaPtr = 0;
3008	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	if (bootPtr)
3009	"/boot/boot.b", strerror(errno));	*bootPtr = NULL;
3010	return 1;
3011	}	while (fgets(buf, sizeof(buf), in)) {
3012		start = buf;
3013		while (isspace(*start))
3014		start++;
3015		if (*start == '#')
3016		continue;
3017
3018		chptr = strchr(start, '=');
3019		if (!chptr)
3020		continue;
3021		chptr--;
3022		while (*chptr && isspace(*chptr))
3023		chptr--;
3024		chptr++;
3025		*chptr = '\0';
3026
3027		param = chptr + 1;
3028		while (*param && isspace(*param))
3029		param++;
3030		if (*param == '=') {
3031		param++;
3032		while (*param && isspace(*param))
3033		param++;
3034		}
3035
3036	if (read(fd, boot, 512) != 512) {	chptr = param;
3037	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while (*chptr && !isspace(*chptr))
3038	"/boot/boot.b", strerror(errno));	chptr++;
3039	return 1;	*chptr = '\0';
3040	}
3041	close(fd);	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3042		*lbaPtr = 1;
3043		else if (!strcmp(start, "boot") && bootPtr)
3044		*bootPtr = strdup(param);
3045		}
3046
3047	if (!strncmp("/dev/md", line->elements[1].item, 7))	fclose(in);
	return checkLiloOnRaid(line->elements[1].item, boot);
3048
3049	return checkDeviceBootloader(line->elements[1].item, boot);	return 0;
3050	}	}
3051
3052	int checkForGrub2(struct grubConfig * config) {	void dumpSysconfigGrub(void)
3053	if (!access("/etc/grub.d/", R_OK))	{
3054	return 2;	char *boot = NULL;
3055		int lba;
3056
3057		if (isSuseSystem()) {
3058		if (parseSuseGrubConf(&lba, &boot)) {
3059		free(boot);
3060		return;
3061		}
3062		} else {
3063		if (parseSysconfigGrub(&lba, &boot)) {
3064		free(boot);
3065		return;
3066		}
3067		}
3068
3069	return 1;	if (lba)
3070		printf("lba\n");
3071		if (boot) {
3072		printf("boot=%s\n", boot);
3073		free(boot);
3074		}
3075	}	}
3076
3077	int checkForGrub(struct grubConfig * config) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3078	int fd;	{
3079	unsigned char bootSect[512];	int i = 0;
3080	char * boot;	struct singleEntry *entry;
3081		struct singleLine *line;
3082
3083		entry = findEntryByPath(config, kernel, prefix, &i);
3084		if (!entry) {
3085		fprintf(stderr, _("grubby: kernel not found\n"));
3086		return 1;
3087		}
3088
3089	if (parseSysconfigGrub(NULL, &boot))	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3090	return 0;	be a better way */
3091		if (config->cfi == &grubConfigType) {
3092		dumpSysconfigGrub();
3093		} else {
3094		line = getLineByType(LT_BOOT, config->theLines);
3095		if (line && line->numElements >= 1) {
3096		printf("boot=%s\n", line->elements[1].item);
3097		}
3098
3099	/* assume grub is not installed -- not an error condition */	line = getLineByType(LT_LBA, config->theLines);
3100	if (!boot)	if (line)
3101	return 0;	printf("lba\n");
3102		}
3103
3104	fd = open("/boot/grub/stage1", O_RDONLY);	displayEntry(entry, prefix, i);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3105
3106	if (read(fd, bootSect, 512) != 512) {	i++;
3107	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3108	"/boot/grub/stage1", strerror(errno));	displayEntry(entry, prefix, i);
3109	close(fd);	i++;
3110	return 1;	}
	}
	close(fd);
3111
3112	return checkDeviceBootloader(boot, bootSect);	return 0;
3113	}	}
3114
3115	int checkForExtLinux(struct grubConfig * config) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3116	int fd;	struct singleLine *tmplLine,
3117	unsigned char bootSect[512];	struct singleLine *prevLine,
3118	char * boot;	const char *val, struct configFileInfo *cfi)
3119	char executable[] = "/boot/extlinux/extlinux";	{
3120		struct singleLine *newLine = lineDup(tmplLine);
	printf("entered: checkForExtLinux()\n");
3121
3122	if (parseSysconfigGrub(NULL, &boot))	if (isEfi && cfi == &grub2ConfigType) {
3123	return 0;	enum lineType_e old = newLine->type;
3124		newLine->type = preferredLineType(newLine->type, cfi);
3125		if (old != newLine->type)
3126		newLine->elements[0].item =
3127		getKeyByType(newLine->type, cfi);
3128		}
3129
3130	/* assume grub is not installed -- not an error condition */	if (val) {
3131	if (!boot)	/* override the inherited value with our own.
3132	return 0;	* This is a little weak because it only applies to elements[1]
3133		*/
3134		if (newLine->numElements > 1)
3135		removeElement(newLine, 1);
3136		insertElement(newLine, val, 1, cfi);
3137
3138		/* but try to keep the rootspec from the template... sigh */
3139		if (tmplLine->
3140		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3141		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3142		LT_INITRD_16)) {
3143		char *rootspec =
3144		getRootSpecifier(tmplLine->elements[1].item);
3145		if (rootspec != NULL) {
3146		free(newLine->elements[1].item);
3147		newLine->elements[1].item =
3148		sdupprintf("%s%s", rootspec, val);
3149		}
3150		}
3151		}
3152
3153	fd = open(executable, O_RDONLY);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3154	if (fd < 0)	newLine->elements[0].item : "");
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3155
3156	if (read(fd, bootSect, 512) != 512) {	if (!entry->lines) {
3157	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	/* first one on the list */
3158	executable, strerror(errno));	entry->lines = newLine;
3159	return 1;	} else if (prevLine) {
3160	}	/* add after prevLine */
3161	close(fd);	newLine->next = prevLine->next;
3162		prevLine->next = newLine;
3163		}
3164
3165	return checkDeviceBootloader(boot, bootSect);	return newLine;
3166	}	}
3167
3168	static char * getRootSpecifier(char * str) {	/* val may be NULL */
3169	char * idx, * rootspec = NULL;	struct singleLine *addLine(struct singleEntry *entry,
3170		struct configFileInfo *cfi,
3171		enum lineType_e type, char *defaultIndent,
3172		const char *val)
3173		{
3174		struct singleLine *line, *prev;
3175		struct keywordTypes *kw;
3176		struct singleLine tmpl;
3177
3178	if (*str == '(') {	/* NB: This function shouldn't allocate items on the heap, rather on
3179	idx = rootspec = strdup(str);	* the stack since it calls addLineTmpl which will make copies.
3180	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	*/
3181	*(++idx) = '\0';	if (type == LT_TITLE && cfi->titleBracketed) {
3182	}	/* we're doing a bracketed title (zipl) */
3183	return rootspec;	tmpl.type = type;
3184		tmpl.numElements = 1;
3185		tmpl.elements = alloca(sizeof(*tmpl.elements));
3186		tmpl.elements[0].item = alloca(strlen(val) + 3);
3187		sprintf(tmpl.elements[0].item, "[%s]", val);
3188		tmpl.elements[0].indent = "";
3189		val = NULL;
3190		} else if (type == LT_MENUENTRY) {
3191		char *lineend = "--class gnu-linux --class gnu --class os {";
3192		if (!val) {
3193		fprintf(stderr,
3194		"Line type LT_MENUENTRY requires a value\n");
3195		abort();
3196		}
3197		kw = getKeywordByType(type, cfi);
3198		if (!kw) {
3199		fprintf(stderr,
3200		"Looking up keyword for unknown type %d\n",
3201		type);
3202		abort();
3203		}
3204		tmpl.indent = "";
3205		tmpl.type = type;
3206		tmpl.numElements = 3;
3207		tmpl.elements =
3208		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3209		tmpl.elements[0].item = kw->key;
3210		tmpl.elements[0].indent = alloca(2);
3211		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3212		tmpl.elements[1].item = (char *)val;
3213		tmpl.elements[1].indent = alloca(2);
3214		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3215		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3216		strcpy(tmpl.elements[2].item, lineend);
3217		tmpl.elements[2].indent = "";
3218		} else {
3219		kw = getKeywordByType(type, cfi);
3220		if (!kw) {
3221		fprintf(stderr,
3222		"Looking up keyword for unknown type %d\n",
3223		type);
3224		abort();
3225		}
3226		tmpl.type = type;
3227		tmpl.numElements = val ? 2 : 1;
3228		tmpl.elements =
3229		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3230		tmpl.elements[0].item = kw->key;
3231		tmpl.elements[0].indent = alloca(2);
3232		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3233		if (val) {
3234		tmpl.elements[1].item = (char *)val;
3235		tmpl.elements[1].indent = "";
3236		}
3237		}
3238
3239		/* The last non-empty line gives us the indention to us and the line
3240		* to insert after. Note that comments are considered empty lines,
3241		* which may not be ideal? If there are no lines or we are looking at
3242		* the first line, we use defaultIndent (the first line is normally
3243		* indented differently from the rest) */
3244		for (line = entry->lines, prev = NULL; line; line = line->next) {
3245		if (line->numElements)
3246		prev = line;
3247		/* fall back on the last line if prev isn't otherwise set */
3248		if (!line->next && !prev)
3249		prev = line;
3250		}
3251
3252		struct singleLine *menuEntry;
3253		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3254		if (tmpl.type == LT_ENTRY_END) {
3255		if (menuEntry)
3256		tmpl.indent = menuEntry->indent;
3257		else
3258		tmpl.indent = defaultIndent ? : "";
3259		} else if (tmpl.type != LT_MENUENTRY) {
3260		if (menuEntry)
3261		tmpl.indent = "\t";
3262		else if (prev == entry->lines)
3263		tmpl.indent = defaultIndent ? : "";
3264		else
3265		tmpl.indent = prev->indent;
3266		}
3267
3268		return addLineTmpl(entry, &tmpl, prev, val, cfi);
3269	}	}
3270
3271	static char * getInitrdVal(struct grubConfig * config,	void removeLine(struct singleEntry *entry, struct singleLine *line)
3272	const char * prefix, struct singleLine *tmplLine,	{
3273	const char * newKernelInitrd,	struct singleLine *prev;
3274	char ** extraInitrds, int extraInitrdCount)	int i;
3275	{
3276	char *initrdVal, *end;	for (i = 0; i < line->numElements; i++) {
3277	int i;	free(line->elements[i].item);
3278	size_t totalSize;	free(line->elements[i].indent);
3279	size_t prefixLen;	}
3280	char separatorChar;	free(line->elements);
3281		free(line->indent);
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3282
3283	initrdVal = end = malloc(totalSize);	if (line == entry->lines) {
3284		entry->lines = line->next;
3285		} else {
3286		prev = entry->lines;
3287		while (prev->next != line)
3288		prev = prev->next;
3289		prev->next = line->next;
3290		}
3291
3292	end = stpcpy (end, newKernelInitrd + prefixLen);	free(line);
3293		}
3294
3295	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3296	for (i = 0; i < extraInitrdCount; i++) {	{
3297	const char *extraInitrd;	struct singleLine newLine = {
3298		.indent = tmplLine->indent,
3299		.type = tmplLine->type,
3300		.next = tmplLine->next,
3301		};
3302		int firstQuotedItem = -1;
3303		int quoteLen = 0;
3304	int j;	int j;
3305		int element = 0;
3306		char *c;
3307
3308	extraInitrd = extraInitrds[i] + prefixLen;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3309	/* Don't add entries that are already there */	strcpy(c, tmplLine->elements[0].item);
3310	if (tmplLine != NULL) {	insertElement(&newLine, c, element++, cfi);
3311	for (j = 2; j < tmplLine->numElements; j++)	free(c);
3312	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	c = NULL;
3313	break;
3314		for (j = 1; j < tmplLine->numElements; j++) {
3315		if (firstQuotedItem == -1) {
3316		quoteLen += strlen(tmplLine->elements[j].item);
3317
3318		if (isquote(tmplLine->elements[j].item[0])) {
3319		firstQuotedItem = j;
3320		quoteLen +=
3321		strlen(tmplLine->elements[j].indent);
3322		} else {
3323		c = malloc(quoteLen + 1);
3324		strcpy(c, tmplLine->elements[j].item);
3325		insertElement(&newLine, c, element++, cfi);
3326		free(c);
3327		quoteLen = 0;
3328		}
3329		} else {
3330		int itemlen = strlen(tmplLine->elements[j].item);
3331		quoteLen += itemlen;
3332		quoteLen += strlen(tmplLine->elements[j].indent);
3333
3334		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3335		c = malloc(quoteLen + 1);
3336		c[0] = '\0';
3337		for (int i = firstQuotedItem; i < j + 1; i++) {
3338		strcat(c, tmplLine->elements[i].item);
3339		strcat(c, tmplLine->elements[i].indent);
3340		}
3341		insertElement(&newLine, c, element++, cfi);
3342		free(c);
3343
3344	if (j != tmplLine->numElements)	firstQuotedItem = -1;
3345	continue;	quoteLen = 0;
3346		}
3347		}
3348	}	}
3349		while (tmplLine->numElements)
3350	*end++ = separatorChar;	removeElement(tmplLine, 0);
3351	end = stpcpy(end, extraInitrd);	if (tmplLine->elements)
3352	}	free(tmplLine->elements);
3353
3354	return initrdVal;	tmplLine->numElements = newLine.numElements;
3355		tmplLine->elements = newLine.elements;
3356	}	}
3357
3358	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	static void insertElement(struct singleLine *line,
3359	const char * prefix,	const char *item, int insertHere,
3360	char * newKernelPath, char * newKernelTitle,	struct configFileInfo *cfi)
3361	char * newKernelArgs, char * newKernelInitrd,	{
3362	char ** extraInitrds, int extraInitrdCount,	struct keywordTypes *kw;
3363	char * newMBKernel, char * newMBKernelArgs) {	char indent[2] = "";
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3364
3365	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	/* sanity check */
3366	while (findEntryByPath(config, buf, NULL, NULL)) {	if (insertHere > line->numElements) {
3367	sprintf(numBuf, "%d", i++);	dbgPrintf
3368	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	("insertElement() adjusting insertHere from %d to %d\n",
3369		insertHere, line->numElements);
3370		insertHere = line->numElements;
3371		}
3372
3373		line->elements = realloc(line->elements, (line->numElements + 1) *
3374		sizeof(*line->elements));
3375		memmove(&line->elements[insertHere + 1],
3376		&line->elements[insertHere],
3377		(line->numElements - insertHere) * sizeof(*line->elements));
3378		line->elements[insertHere].item = strdup(item);
3379
3380		kw = getKeywordByType(line->type, cfi);
3381
3382		if (line->numElements == 0) {
3383		indent[0] = '\0';
3384		} else if (insertHere == 0) {
3385		indent[0] = kw->nextChar;
3386		} else if (kw->separatorChar != '\0') {
3387		indent[0] = kw->separatorChar;
3388		} else {
3389		indent[0] = ' ';
3390	}	}
3391
3392	newKernelTitle = buf + 6;	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3393	}	/* move the end-of-line forward */
3394		line->elements[insertHere].indent =
3395		line->elements[insertHere - 1].indent;
3396		line->elements[insertHere - 1].indent = strdup(indent);
3397		} else {
3398		line->elements[insertHere].indent = strdup(indent);
3399		}
3400
3401	new = malloc(sizeof(*new));	line->numElements++;
	new->skip = 0;
	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;
	}
3402
3403	if (template) {	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3404	for (masterLine = template->lines;	line->elements[0].item,
3405	masterLine && (tmplLine = lineDup(masterLine));	line->elements[insertHere].item,
3406	lineFree(tmplLine), masterLine = masterLine->next)	line->elements[insertHere].indent, insertHere);
3407	{	}
3408	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
3409		static void removeElement(struct singleLine *line, int removeHere)
3410	/* skip comments */	{
3411	chptr = tmplLine->indent;	int i;
3412	while (*chptr && isspace(*chptr)) chptr++;
3413	if (*chptr == '#') continue;	/* sanity check */
3414		if (removeHere >= line->numElements)
3415	if (tmplLine->type == LT_KERNEL &&	return;
3416	tmplLine->numElements >= 2) {
3417	if (!template->multiboot && (needs & NEED_MB)) {	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3418	/* it's not a multiboot template and this is the kernel	removeHere, line->elements[removeHere].item);
3419	* line.  Try to be intelligent about inserting the
3420	* hypervisor at the same time.	free(line->elements[removeHere].item);
3421	*/
3422	if (config->cfi->mbHyperFirst) {	if (removeHere > 1) {
3423	/* insert the hypervisor first */	/* previous argument gets this argument's post-indentation */
3424	newLine = addLine(new, config->cfi, LT_HYPER,	free(line->elements[removeHere - 1].indent);
3425	tmplLine->indent,	line->elements[removeHere - 1].indent =
3426	newMBKernel + strlen(prefix));	line->elements[removeHere].indent;
3427	/* set up for adding the kernel line */	} else {
3428	free(tmplLine->indent);	free(line->elements[removeHere].indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next && masterLine->next->type == LT_KERNEL) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
3429	}	}
3430
3431	} else {	/* now collapse the array, but don't bother to realloc smaller */
3432	/* don't have a template, so start the entry with the	for (i = removeHere; i < line->numElements - 1; i++)
3433	* appropriate starting line	line->elements[i] = line->elements[i + 1];
	*/
	switch (config->cfi->entryStart) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3434
3435	case LT_HYPER:	line->numElements--;
3436	newLine = addLine(new, config->cfi, LT_HYPER,	}
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3437
3438	case LT_MENUENTRY: {	int argMatch(const char *one, const char *two)
3439	char *nkt = malloc(strlen(newKernelTitle)+3);	{
3440	strcpy(nkt, "'");	char *first, *second;
3441	strcat(nkt, newKernelTitle);	char *chptr;
	strcat(nkt, "'");
	newLine = addLine(new, config->cfi, LT_MENUENTRY,
	config->primaryIndent, nkt);
	free(nkt);
	needs &= ~NEED_TITLE;
	needs |= NEED_END;
	break;
	}
	case LT_TITLE:
	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)
	char * templabel;
	int x = 0, y = 0;
	templabel = strdup(newKernelTitle);
	while( templabel[x]){
	if( templabel[x] == ' ' ){
	y = x;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
	}
	}
	x++;
	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
	}
	needs &= ~NEED_TITLE;
	break;
3442
3443	default:	first = strcpy(alloca(strlen(one) + 1), one);
3444	abort();	second = strcpy(alloca(strlen(two) + 1), two);
	}
	}
3445
3446	/* add the remainder of the lines, i.e. those that either	chptr = strchr(first, '=');
3447	* weren't present in the template, or in the case of no template,	if (chptr)
3448	* all the lines following the entryStart.	*chptr = '\0';
	*/
	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;
	}
3449
3450	if (needs) {	chptr = strchr(second, '=');
3451	printf(_("grubby: needs=%d, aborting\n"), needs);	if (chptr)
3452	abort();	*chptr = '\0';
	}
3453
3454	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	return strcmp(first, second);
3455	newMBKernelArgs, NULL)) return 1;	}
3456
3457	return 0;	int updateActualImage(struct grubConfig *cfg, const char *image,
3458		const char *prefix, const char *addArgs,
3459		const char *removeArgs, int multibootArgs)
3460		{
3461		struct singleEntry *entry;
3462		struct singleLine *line, *rootLine;
3463		int index = 0;
3464		int i, k;
3465		const char **newArgs, **oldArgs;
3466		const char **arg;
3467		int useKernelArgs, useRoot;
3468		int firstElement;
3469		int *usedElements;
3470		int doreplace;
3471
3472		if (!image)
3473		return 0;
3474
3475		if (!addArgs) {
3476		newArgs = malloc(sizeof(*newArgs));
3477		*newArgs = NULL;
3478		} else {
3479		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3480		fprintf(stderr,
3481		_("grubby: error separating arguments '%s'\n"),
3482		addArgs);
3483		return 1;
3484		}
3485		}
3486
3487		if (!removeArgs) {
3488		oldArgs = malloc(sizeof(*oldArgs));
3489		*oldArgs = NULL;
3490		} else {
3491		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3492		fprintf(stderr,
3493		_("grubby: error separating arguments '%s'\n"),
3494		removeArgs);
3495		free(newArgs);
3496		return 1;
3497		}
3498		}
3499
3500		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3501		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3502
3503		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3504		&& !multibootArgs);
3505
3506		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3507
3508		if (multibootArgs && !entry->multiboot)
3509		continue;
3510
3511		/* Determine where to put the args.  If this config supports
3512		* LT_KERNELARGS, use that.  Otherwise use
3513		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3514		*/
3515		if (useKernelArgs) {
3516		line = getLineByType(LT_KERNELARGS, entry->lines);
3517		if (!line) {
3518		/* no LT_KERNELARGS, need to add it */
3519		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3520		cfg->secondaryIndent, NULL);
3521		}
3522		firstElement = 1;
3523
3524		} else if (multibootArgs) {
3525		line = getLineByType(LT_HYPER, entry->lines);
3526		if (!line) {
3527		/* a multiboot entry without LT_HYPER? */
3528		continue;
3529		}
3530		firstElement = 2;
3531
3532		} else {
3533		line =
3534		getLineByType(LT_KERNEL | LT_MBMODULE |
3535		LT_KERNEL_EFI | LT_KERNEL_16,
3536		entry->lines);
3537		if (!line) {
3538		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3539		continue;
3540		}
3541		firstElement = 2;
3542		}
3543
3544		/* handle the elilo case which does:
3545		*   append="hypervisor args -- kernel args"
3546		*/
3547		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3548		/* this is a multiboot entry, make sure there's
3549		* -- on the args line
3550		*/
3551		for (i = firstElement; i < line->numElements; i++) {
3552		if (!strcmp(line->elements[i].item, "--"))
3553		break;
3554		}
3555		if (i == line->numElements) {
3556		/* assume all existing args are kernel args,
3557		* prepend -- to make it official
3558		*/
3559		insertElement(line, "--", firstElement,
3560		cfg->cfi);
3561		i = firstElement;
3562		}
3563		if (!multibootArgs) {
3564		/* kernel args start after the -- */
3565		firstElement = i + 1;
3566		}
3567		} else if (cfg->cfi->mbConcatArgs) {
3568		/* this is a non-multiboot entry, remove hyper args */
3569		for (i = firstElement; i < line->numElements; i++) {
3570		if (!strcmp(line->elements[i].item, "--"))
3571		break;
3572		}
3573		if (i < line->numElements) {
3574		/* remove args up to -- */
3575		while (strcmp
3576		(line->elements[firstElement].item,
3577		"--"))
3578		removeElement(line, firstElement);
3579		/* remove -- */
3580		removeElement(line, firstElement);
3581		}
3582		}
3583
3584		usedElements = calloc(line->numElements, sizeof(*usedElements));
3585
3586		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3587
3588		doreplace = 1;
3589		for (i = firstElement; i < line->numElements; i++) {
3590		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3591		!strcmp(line->elements[i].item, "--")) {
3592		/* reached the end of hyper args, insert here */
3593		doreplace = 0;
3594		break;
3595		}
3596		if (usedElements[i])
3597		continue;
3598		if (!argMatch(line->elements[i].item, *arg)) {
3599		usedElements[i] = 1;
3600		break;
3601		}
3602		}
3603
3604		if (i < line->numElements && doreplace) {
3605		/* direct replacement */
3606		free(line->elements[i].item);
3607		line->elements[i].item = strdup(*arg);
3608
3609		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3610		/* root= replacement */
3611		rootLine = getLineByType(LT_ROOT, entry->lines);
3612		if (rootLine) {
3613		free(rootLine->elements[1].item);
3614		rootLine->elements[1].item =
3615		strdup(*arg + 5);
3616		} else {
3617		rootLine =
3618		addLine(entry, cfg->cfi, LT_ROOT,
3619		cfg->secondaryIndent,
3620		*arg + 5);
3621		}
3622		}
3623
3624		else {
3625		/* insert/append */
3626		insertElement(line, *arg, i, cfg->cfi);
3627		usedElements =
3628		realloc(usedElements,
3629		line->numElements *
3630		sizeof(*usedElements));
3631		memmove(&usedElements[i + 1], &usedElements[i],
3632		line->numElements - i - 1);
3633		usedElements[i] = 1;
3634
3635		/* if we updated a root= here even though
3636		* there is a LT_ROOT available we need to
3637		* remove the LT_ROOT entry (this will happen
3638		* if we switch from a device to a label) */
3639		if (useRoot && !strncmp(*arg, "root=", 5)) {
3640		rootLine =
3641		getLineByType(LT_ROOT,
3642		entry->lines);
3643		if (rootLine)
3644		removeLine(entry, rootLine);
3645		}
3646		}
3647		}
3648
3649		free(usedElements);
3650
3651		for (arg = oldArgs; *arg; arg++) {
3652		for (i = firstElement; i < line->numElements; i++) {
3653		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3654		!strcmp(line->elements[i].item, "--"))
3655		/* reached the end of hyper args, stop here */
3656		break;
3657		if (!argMatch(line->elements[i].item, *arg)) {
3658		removeElement(line, i);
3659		break;
3660		}
3661		}
3662		/* handle removing LT_ROOT line too */
3663		if (useRoot && !strncmp(*arg, "root=", 5)) {
3664		rootLine = getLineByType(LT_ROOT, entry->lines);
3665		if (rootLine)
3666		removeLine(entry, rootLine);
3667		}
3668		}
3669
3670		if (line->numElements == 1) {
3671		/* don't need the line at all (note it has to be a
3672		LT_KERNELARGS for this to happen */
3673		removeLine(entry, line);
3674		}
3675		}
3676
3677		free(newArgs);
3678		free(oldArgs);
3679
3680		return 0;
3681	}	}
3682
3683	static void traceback(int signum)	int updateImage(struct grubConfig *cfg, const char *image,
3684		const char *prefix, const char *addArgs,
3685		const char *removeArgs,
3686		const char *addMBArgs, const char *removeMBArgs)
3687	{	{
3688	void *array[40];	int rc = 0;
	size_t size;
3689
3690	signal(SIGSEGV, SIG_DFL);	if (!image)
3691	memset(array, '\0', sizeof (array));	return rc;
3692	size = backtrace(array, 40);
3693		/* update the main args first... */
3694	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	if (addArgs || removeArgs)
3695	(unsigned long)size);	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3696	backtrace_symbols_fd(array, size, STDERR_FILENO);	0);
3697	exit(1);	if (rc)
3698	}	return rc;
3699
3700	int main(int argc, const char ** argv) {	/* and now any multiboot args */
3701	poptContext optCon;	if (addMBArgs || removeMBArgs)
3702	const char * grubConfig = NULL;	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3703	char * outputFile = NULL;	removeMBArgs, 1);
3704	int arg = 0;	return rc;
3705	int flags = 0;	}
3706	int badImageOkay = 0;
3707	int configureGrub2 = 0;	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3708	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	const char *image, const char *prefix, const char *initrd,
3709	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	const char *title)
3710	int configureExtLinux = 0;	{
3711	int bootloaderProbe = 0;	struct singleEntry *entry;
3712	int extraInitrdCount = 0;	struct singleLine *line, *kernelLine, *endLine = NULL;
3713	char * updateKernelPath = NULL;	int index = 0;
3714	char * newKernelPath = NULL;
3715	char * removeKernelPath = NULL;	if (!image)
3716	char * newKernelArgs = NULL;	return 0;
3717	char * newKernelInitrd = NULL;
3718	char * newKernelTitle = NULL;	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3719	char * newKernelVersion = NULL;	kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3720	char * newMBKernel = NULL;	if (!kernelLine)
3721	char * newMBKernelArgs = NULL;	continue;
3722	char * removeMBKernelArgs = NULL;
3723	char * removeMBKernel = NULL;	/* if title is supplied, the entry's title must match it. */
3724	char * bootPrefix = NULL;	if (title) {
3725	char * defaultKernel = NULL;	char *linetitle;
3726	char * removeArgs = NULL;
3727	char * kernelInfo = NULL;	line =
3728	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	getLineByType(LT_TITLE | LT_MENUENTRY,
3729	const char * chptr = NULL;	entry->lines);
3730	struct configFileInfo * cfi = NULL;	if (!line)
3731	struct grubConfig * config;	continue;
3732	struct singleEntry * template = NULL;
3733	int copyDefault = 0, makeDefault = 0;	linetitle = extractTitle(cfg, line);
3734	int displayDefault = 0;	if (!linetitle)
3735	int displayDefaultIndex = 0;	continue;
3736	int displayDefaultTitle = 0;	if (strcmp(title, linetitle)) {
3737	struct poptOption options[] = {	free(linetitle);
3738	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	continue;
3739	_("add an entry for the specified kernel"), _("kernel-path") },	}
3740	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	free(linetitle);
3741	_("add an entry for the specified multiboot kernel"), NULL },	}
3742	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
3743	_("default arguments for the new kernel or new arguments for "	if (prefix) {
3744	"kernel being updated"), _("args") },	int prefixLen = strlen(prefix);
3745	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	if (!strncmp(initrd, prefix, prefixLen))
3746	_("default arguments for the new multiboot kernel or "	initrd += prefixLen;
3747	"new arguments for multiboot kernel being updated"), NULL },	}
3748	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	endLine = getLineByType(LT_ENTRY_END, entry->lines);
3749	_("don't sanity check images in boot entries (for testing only)"),	if (endLine)
3750	NULL },	removeLine(entry, endLine);
3751	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	line =
3752	_("filestystem which contains /boot directory (for testing only)"),	addLine(entry, cfg->cfi,
3753	_("bootfs") },	preferredLineType(LT_MBMODULE, cfg->cfi),
3754	#if defined(__i386__) || defined(__x86_64__)	kernelLine->indent, initrd);
3755	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	if (!line)
3756	_("check if lilo is installed on lilo.conf boot sector") },	return 1;
3757	#endif	if (endLine) {
3758	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3759	_("path to grub config file to update (\"-\" for stdin)"),	if (!line)
3760	_("path") },	return 1;
3761	{ "copy-default", 0, 0, &copyDefault, 0,	}
3762	_("use the default boot entry as a template for the new entry "
3763	"being added; if the default is not a linux image, or if "	break;
3764	"the kernel referenced by the default image does not exist, "	}
3765	"the first linux entry whose kernel does exist is used as the "
3766	"template"), NULL },	return 0;
3767	{ "debug", 0, 0, &debug, 0,	}
3768	_("print debugging information for failures") },
3769	{ "default-kernel", 0, 0, &displayDefault, 0,	int updateInitrd(struct grubConfig *cfg, const char *image,
3770	_("display the path of the default kernel") },	const char *prefix, const char *initrd, const char *title)
3771	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{
3772	_("display the index of the default kernel") },	struct singleEntry *entry;
3773	{ "default-title", 0, 0, &displayDefaultTitle, 0,	struct singleLine *line, *kernelLine, *endLine = NULL;
3774	_("display the title of the default kernel") },	int index = 0;
3775	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
3776	_("configure elilo bootloader") },	if (!image)
3777	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	return 0;
3778	_("configure extlinux bootloader (from syslinux)") },
3779	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3780	_("configure grub bootloader") },	kernelLine =
3781	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3782	_("configure grub2 bootloader") },	entry->lines);
3783	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	if (!kernelLine)
3784	_("display boot information for specified kernel"),	continue;
3785	_("kernel-path") },
3786	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	/* if title is supplied, the entry's title must match it. */
3787	_("initrd image for the new kernel"), _("initrd-path") },	if (title) {
3788	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	char *linetitle;
3789	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
3790	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	line =
3791	_("configure lilo bootloader") },	getLineByType(LT_TITLE | LT_MENUENTRY,
3792	{ "make-default", 0, 0, &makeDefault, 0,	entry->lines);
3793	_("make the newly added entry the default boot entry"), NULL },	if (!line)
3794	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	continue;
3795	_("path to output updated config file (\"-\" for stdout)"),
3796	_("path") },	linetitle = extractTitle(cfg, line);
3797	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	if (!linetitle)
3798	_("remove kernel arguments"), NULL },	continue;
3799	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	if (strcmp(title, linetitle)) {
3800	_("remove multiboot kernel arguments"), NULL },	free(linetitle);
3801	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	continue;
3802	_("remove all entries for the specified kernel"),	}
3803	_("kernel-path") },	free(linetitle);
3804	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	}
3805	_("remove all entries for the specified multiboot kernel"), NULL },
3806	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	line =
3807	_("make the first entry referencing the specified kernel "	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3808	"the default"), _("kernel-path") },	entry->lines);
3809	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	if (line)
3810	_("configure silo bootloader") },	removeLine(entry, line);
3811	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	if (prefix) {
3812	_("title to use for the new kernel entry"), _("entry-title") },	int prefixLen = strlen(prefix);
3813	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	if (!strncmp(initrd, prefix, prefixLen))
3814	_("updated information for the specified kernel"),	initrd += prefixLen;
3815	_("kernel-path") },	}
3816	{ "version", 'v', 0, NULL, 'v',	endLine = getLineByType(LT_ENTRY_END, entry->lines);
3817	_("print the version of this program and exit"), NULL },	if (endLine)
3818	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	removeLine(entry, endLine);
3819	_("configure yaboot bootloader") },	enum lineType_e lt;
3820	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	switch (kernelLine->type) {
3821	_("configure zipl bootloader") },	case LT_KERNEL:
3822	POPT_AUTOHELP	lt = LT_INITRD;
3823	{ 0, 0, 0, 0, 0 }	break;
3824	};	case LT_KERNEL_EFI:
3825		lt = LT_INITRD_EFI;
3826	useextlinuxmenu=0;	break;
3827		case LT_KERNEL_16:
3828	signal(SIGSEGV, traceback);	lt = LT_INITRD_16;
3829		break;
3830	optCon = poptGetContext("grubby", argc, argv, options, 0);	default:
3831	poptReadDefaultConfig(optCon, 1);	lt = preferredLineType(LT_INITRD, cfg->cfi);
3832		}
3833	while ((arg = poptGetNextOpt(optCon)) >= 0) {	line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3834	switch (arg) {	if (!line)
3835	case 'v':	return 1;
3836	printf("grubby version %s\n", VERSION);	if (endLine) {
3837	exit(0);	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3838	break;	if (!line)
3839	case 'i':	return 1;
3840	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	}
3841	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
3842	} else {	break;
3843	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	}
3844
3845		return 0;
3846		}
3847
3848		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3849		{
3850		int fd;
3851		unsigned char bootSect[512];
3852		int offset;
3853
3854		fd = open(device, O_RDONLY);
3855		if (fd < 0) {
3856		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3857		device, strerror(errno));
3858	return 1;	return 1;
	}
	break;
3859	}	}
	}
3860
3861	if (arg < -1) {	if (read(fd, bootSect, 512) != 512) {
3862	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3863	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	device, strerror(errno));
3864	poptStrerror(arg));	return 1;
3865	return 1;	}
3866	}	close(fd);
3867
3868		/* first three bytes should match, a jmp short should be in there */
3869		if (memcmp(boot, bootSect, 3))
3870		return 0;
3871
3872		if (boot[1] == JMP_SHORT_OPCODE) {
3873		offset = boot[2] + 2;
3874		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3875		offset = (boot[3] << 8) + boot[2] + 2;
3876		} else if (boot[0] == JMP_SHORT_OPCODE) {
3877		offset = boot[1] + 2;
3878		/*
3879		* it looks like grub, when copying stage1 into the mbr,
3880		* patches stage1 right after the JMP location, replacing
3881		* other instructions such as JMPs for NOOPs. So, relax the
3882		* check a little bit by skipping those different bytes.
3883		*/
3884		if ((bootSect[offset + 1] == NOOP_OPCODE)
3885		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3886		offset = offset + 3;
3887		}
3888		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3889		offset = (boot[2] << 8) + boot[1] + 2;
3890		} else {
3891		return 0;
3892		}
3893
3894		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3895		return 0;
3896
3897		return 2;
3898		}
3899
3900		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3901		{
3902		int fd;
3903		char buf[65536];
3904		char *end;
3905		char *chptr;
3906		char *chptr2;
3907		int rc;
3908
3909		/* it's on raid; we need to parse /proc/mdstat and check all of the
3910		*raw* devices listed in there */
3911
3912		if (!strncmp(mdDev, "/dev/", 5))
3913		mdDev += 5;
3914
3915		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3916		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3917		strerror(errno));
3918		return 2;
3919		}
3920
3921		rc = read(fd, buf, sizeof(buf) - 1);
3922		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3923		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3924		strerror(errno));
3925		close(fd);
3926		return 2;
3927		}
3928		close(fd);
3929		buf[rc] = '\0';
3930
3931		chptr = buf;
3932		while (*chptr) {
3933		end = strchr(chptr, '\n');
3934		if (!end)
3935		break;
3936		*end = '\0';
3937
3938		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3939		chptr[strlen(mdDev)] == ' ') {
3940
3941		/* found the device */
3942		while (*chptr && *chptr != ':')
3943		chptr++;
3944		chptr++;
3945		while (*chptr && isspace(*chptr))
3946		chptr++;
3947
3948		/* skip the "active" bit */
3949		while (*chptr && !isspace(*chptr))
3950		chptr++;
3951		while (*chptr && isspace(*chptr))
3952		chptr++;
3953
3954		/* skip the raid level */
3955		while (*chptr && !isspace(*chptr))
3956		chptr++;
3957		while (*chptr && isspace(*chptr))
3958		chptr++;
3959
3960		/* everything else is partition stuff */
3961		while (*chptr) {
3962		chptr2 = chptr;
3963		while (*chptr2 && *chptr2 != '[')
3964		chptr2++;
3965		if (!*chptr2)
3966		break;
3967
3968		/* yank off the numbers at the end */
3969		chptr2--;
3970		while (isdigit(*chptr2) && chptr2 > chptr)
3971		chptr2--;
3972		chptr2++;
3973		*chptr2 = '\0';
3974
3975		/* Better, now we need the /dev/ back. We're
3976		* done with everything before this point, so
3977		* we can just put the /dev/ part there.
3978		* There will always be room. */
3979		memcpy(chptr - 5, "/dev/", 5);
3980		rc = checkDeviceBootloader(chptr - 5, boot);
3981		if (rc != 2) {
3982		return rc;
3983		}
3984
3985		chptr = chptr2 + 1;
3986		/* skip the [11] bit */
3987		while (*chptr && !isspace(*chptr))
3988		chptr++;
3989		/* and move to the next one */
3990		while (*chptr && isspace(*chptr))
3991		chptr++;
3992		}
3993
3994		/*  we're good to go */
3995		return 2;
3996		}
3997
3998		chptr = end + 1;
3999		}
4000
4001		fprintf(stderr,
4002		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4003		mdDev);
4004		return 0;
4005		}
4006
4007		int checkForLilo(struct grubConfig *config)
4008		{
4009		int fd;
4010		unsigned char boot[512];
4011		struct singleLine *line;
4012
4013		for (line = config->theLines; line; line = line->next)
4014		if (line->type == LT_BOOT)
4015		break;
4016
4017		if (!line) {
4018		fprintf(stderr,
4019		_
4020		("grubby: no boot line found in lilo configuration\n"));
4021		return 1;
4022		}
4023
4024		if (line->numElements != 2)
4025		return 1;
4026
4027		fd = open("/boot/boot.b", O_RDONLY);
4028		if (fd < 0) {
4029		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4030		"/boot/boot.b", strerror(errno));
4031		return 1;
4032		}
4033
4034		if (read(fd, boot, 512) != 512) {
4035		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4036		"/boot/boot.b", strerror(errno));
4037		return 1;
4038		}
4039		close(fd);
4040
4041		if (!strncmp("/dev/md", line->elements[1].item, 7))
4042		return checkLiloOnRaid(line->elements[1].item, boot);
4043
4044		return checkDeviceBootloader(line->elements[1].item, boot);
4045		}
4046
4047		int checkForGrub2(struct grubConfig *config)
4048		{
4049		if (!access("/etc/grub.d/", R_OK))
4050		return 2;
4051
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4052	return 1;	return 1;
4053	}	}
4054
4055		int checkForGrub(struct grubConfig *config)
4056		{
4057		int fd;
4058		unsigned char bootSect[512];
4059		char *boot;
4060		int onSuse = isSuseSystem();
4061
4062		if (onSuse) {
4063		if (parseSuseGrubConf(NULL, &boot))
4064		return 0;
4065		} else {
4066		if (parseSysconfigGrub(NULL, &boot))
4067		return 0;
4068		}
4069
4070		/* assume grub is not installed -- not an error condition */
4071		if (!boot)
4072		return 0;
4073
4074		fd = open("/boot/grub/stage1", O_RDONLY);
4075		if (fd < 0)
4076		/* this doesn't exist if grub hasn't been installed */
4077		return 0;
4078
4079		if (read(fd, bootSect, 512) != 512) {
4080		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4081		"/boot/grub/stage1", strerror(errno));
4082		close(fd);
4083		return 1;
4084		}
4085		close(fd);
4086
4087		/* The more elaborate checks do not work on SuSE. The checks done
4088		* seem to be reasonble (at least for now), so just return success
4089		*/
4090		if (onSuse)
4091		return 2;
4092
4093		return checkDeviceBootloader(boot, bootSect);
4094		}
4095
4096		int checkForExtLinux(struct grubConfig *config)
4097		{
4098		int fd;
4099		unsigned char bootSect[512];
4100		char *boot;
4101		char executable[] = "/boot/extlinux/extlinux";
4102
4103		printf("entered: checkForExtLinux()\n");
4104
4105		if (parseSysconfigGrub(NULL, &boot))
4106		return 0;
4107
4108		/* assume grub is not installed -- not an error condition */
4109		if (!boot)
4110		return 0;
4111
4112		fd = open(executable, O_RDONLY);
4113		if (fd < 0)
4114		/* this doesn't exist if grub hasn't been installed */
4115		return 0;
4116
4117		if (read(fd, bootSect, 512) != 512) {
4118		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4119		executable, strerror(errno));
4120		return 1;
4121		}
4122		close(fd);
4123
4124		return checkDeviceBootloader(boot, bootSect);
4125		}
4126
4127		int checkForYaboot(struct grubConfig *config)
4128		{
4129		/*
4130		* This is a simplistic check that we consider good enough for own puporses
4131		*
4132		* If we were to properly check if yaboot is *installed* we'd need to:
4133		* 1) get the system boot device (LT_BOOT)
4134		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4135		*    the content on the boot device
4136		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4137		* 4) check again if binary and boot device contents match
4138		*/
4139		if (!access("/etc/yaboot.conf", R_OK))
4140		return 2;
4141
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4142	return 1;	return 1;
4143	} else if (bootloaderProbe && grubConfig) {	}
4144	fprintf(stderr,
4145	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4146		{
4147		if (!access("/etc/elilo.conf", R_OK))
4148		return 2;
4149
4150	return 1;	return 1;
4151	} else if (configureGrub2) {	}
4152	cfi = &grub2ConfigType;
4153	} else if (configureLilo) {	static char *getRootSpecifier(char *str)
4154	cfi = &liloConfigType;	{
4155	} else if (configureGrub) {	char *idx, *rootspec = NULL;
4156	cfi = &grubConfigType;
4157	} else if (configureELilo) {	if (*str == '(') {
4158	cfi = &eliloConfigType;	idx = rootspec = strdup(str);
4159	} else if (configureYaboot) {	while (*idx && (*idx != ')') && (!isspace(*idx)))
4160	cfi = &yabootConfigType;	idx++;
4161	} else if (configureSilo) {	*(++idx) = '\0';
4162	cfi = &siloConfigType;	}
4163	} else if (configureZipl) {	return rootspec;
4164	cfi = &ziplConfigType;	}
4165	} else if (configureExtLinux) {
4166	cfi = &extlinuxConfigType;	static char *getInitrdVal(struct grubConfig *config,
4167	useextlinuxmenu=1;	const char *prefix, struct singleLine *tmplLine,
4168	}	const char *newKernelInitrd,
4169		const char **extraInitrds, int extraInitrdCount)
4170		{
4171		char *initrdVal, *end;
4172		int i;
4173		size_t totalSize;
4174		size_t prefixLen;
4175		char separatorChar;
4176
4177		prefixLen = strlen(prefix);
4178		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4179
4180		for (i = 0; i < extraInitrdCount; i++) {
4181		totalSize += sizeof(separatorChar);
4182		totalSize += strlen(extraInitrds[i]) - prefixLen;
4183		}
4184
4185		initrdVal = end = malloc(totalSize);
4186
4187		end = stpcpy(end, newKernelInitrd + prefixLen);
4188
4189		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4190		for (i = 0; i < extraInitrdCount; i++) {
4191		const char *extraInitrd;
4192		int j;
4193
4194		extraInitrd = extraInitrds[i] + prefixLen;
4195		/* Don't add entries that are already there */
4196		if (tmplLine != NULL) {
4197		for (j = 2; j < tmplLine->numElements; j++)
4198		if (strcmp
4199		(extraInitrd,
4200		tmplLine->elements[j].item) == 0)
4201		break;
4202
4203		if (j != tmplLine->numElements)
4204		continue;
4205		}
4206
4207		*end++ = separatorChar;
4208		end = stpcpy(end, extraInitrd);
4209		}
4210
4211		return initrdVal;
4212		}
4213
4214		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4215		const char *prefix,
4216		const char *newKernelPath, const char *newKernelTitle,
4217		const char *newKernelArgs, const char *newKernelInitrd,
4218		const char **extraInitrds, int extraInitrdCount,
4219		const char *newMBKernel, const char *newMBKernelArgs,
4220		const char *newDevTreePath, int newIndex)
4221		{
4222		struct singleEntry *new, *entry, *prev = NULL;
4223		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4224		int needs;
4225		char *indexs;
4226		char *chptr;
4227		int rc;
4228
4229		if (!newKernelPath)
4230		return 0;
4231
4232	if (!cfi) {	rc = asprintf(&indexs, "%d", newIndex);
4233	if (grub2FindConfig(&grub2ConfigType))	if (rc < 0)
4234	cfi = &grub2ConfigType;	return 1;
4235
4236		/* if the newKernelTitle is too long silently munge it into something
4237		* we can live with. truncating is first check, then we'll just mess with
4238		* it until it looks better */
4239		if (config->cfi->maxTitleLength &&
4240		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4241		char *buf = alloca(config->cfi->maxTitleLength + 7);
4242		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4243		int i = 1;
4244
4245		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4246		newKernelTitle);
4247		while (findEntryByPath(config, buf, NULL, NULL)) {
4248		sprintf(numBuf, "%d", i++);
4249		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4250		}
4251
4252		newKernelTitle = buf + 6;
4253		}
4254
4255		new = malloc(sizeof(*new));
4256		new->skip = 0;
4257		new->multiboot = 0;
4258		new->lines = NULL;
4259		entry = config->entries;
4260		for (unsigned int i = 0; i < newIndex; i++) {
4261		if (!entry)
4262		break;
4263		prev = entry;
4264		entry = entry->next;
4265		}
4266		new->next = entry;
4267
4268		if (prev)
4269		prev->next = new;
4270	else	else
4271	#ifdef __ia64__	config->entries = new;
	cfi = &eliloConfigType;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
4272
4273	if (!grubConfig) {	/* copy/update from the template */
4274	if (cfi->findConfig)	needs = NEED_KERNEL | NEED_TITLE;
4275	grubConfig = cfi->findConfig(cfi);	if (newKernelInitrd)
4276	if (!grubConfig)	needs |= NEED_INITRD;
4277	grubConfig = cfi->defaultConfig;	if (newMBKernel) {
4278	}	needs |= NEED_MB;
4279		new->multiboot = 1;
4280		}
4281		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4282		needs |= NEED_DEVTREE;
4283
4284		if (template) {
4285		for (masterLine = template->lines;
4286		masterLine && (tmplLine = lineDup(masterLine));
4287		lineFree(tmplLine), masterLine = masterLine->next) {
4288		dbgPrintf("addNewKernel processing %d\n",
4289		tmplLine->type);
4290
4291		/* skip comments */
4292		chptr = tmplLine->indent;
4293		while (*chptr && isspace(*chptr))
4294		chptr++;
4295		if (*chptr == '#')
4296		continue;
4297
4298		if (iskernel(tmplLine->type)
4299		&& tmplLine->numElements >= 2) {
4300		if (!template->multiboot && (needs & NEED_MB)) {
4301		/* it's not a multiboot template and
4302		* this is the kernel line.  Try to
4303		* be intelligent about inserting the
4304		* hypervisor at the same time.
4305		*/
4306		if (config->cfi->mbHyperFirst) {
4307		/* insert the hypervisor first */
4308		newLine =
4309		addLine(new, config->cfi,
4310		LT_HYPER,
4311		tmplLine->indent,
4312		newMBKernel +
4313		strlen(prefix));
4314		/* set up for adding the
4315		* kernel line */
4316		free(tmplLine->indent);
4317		tmplLine->indent =
4318		strdup(config->
4319		secondaryIndent);
4320		needs &= ~NEED_MB;
4321		}
4322		if (needs & NEED_KERNEL) {
4323		/* use addLineTmpl to
4324		* preserve line elements,
4325		* otherwise we could just
4326		* call addLine.
4327		* Unfortunately this means
4328		* making some changes to the
4329		* template such as the
4330		* indent change above and
4331		* the type change below.
4332		*/
4333		struct keywordTypes *mbm_kw =
4334		getKeywordByType
4335		(LT_MBMODULE, config->cfi);
4336		if (mbm_kw) {
4337		tmplLine->type =
4338		LT_MBMODULE;
4339		free(tmplLine->
4340		elements[0].item);
4341		tmplLine->elements[0].
4342		item =
4343		strdup(mbm_kw->key);
4344		}
4345		newLine =
4346		addLineTmpl(new, tmplLine,
4347		newLine,
4348		newKernelPath +
4349		strlen(prefix),
4350		config->cfi);
4351		needs &= ~NEED_KERNEL;
4352		}
4353		if (needs & NEED_MB) { /* !mbHyperFirst */
4354		newLine =
4355		addLine(new, config->cfi,
4356		LT_HYPER,
4357		config->
4358		secondaryIndent,
4359		newMBKernel +
4360		strlen(prefix));
4361		needs &= ~NEED_MB;
4362		}
4363		} else if (needs & NEED_KERNEL) {
4364		newLine =
4365		addLineTmpl(new, tmplLine, newLine,
4366		newKernelPath +
4367		strlen(prefix),
4368		config->cfi);
4369		needs &= ~NEED_KERNEL;
4370		}
4371
4372		} else if (tmplLine->type == LT_HYPER &&
4373		tmplLine->numElements >= 2) {
4374		if (needs & NEED_MB) {
4375		newLine =
4376		addLineTmpl(new, tmplLine, newLine,
4377		newMBKernel +
4378		strlen(prefix),
4379		config->cfi);
4380		needs &= ~NEED_MB;
4381		}
4382
4383		} else if (tmplLine->type == LT_MBMODULE &&
4384		tmplLine->numElements >= 2) {
4385		if (new->multiboot) {
4386		if (needs & NEED_KERNEL) {
4387		newLine =
4388		addLineTmpl(new, tmplLine,
4389		newLine,
4390		newKernelPath +
4391		strlen(prefix),
4392		config->cfi);
4393		needs &= ~NEED_KERNEL;
4394		} else if (config->cfi->mbInitRdIsModule
4395		&& (needs & NEED_INITRD)) {
4396		char *initrdVal;
4397		initrdVal =
4398		getInitrdVal(config, prefix,
4399		tmplLine,
4400		newKernelInitrd,
4401		extraInitrds,
4402		extraInitrdCount);
4403		newLine =
4404		addLineTmpl(new, tmplLine,
4405		newLine,
4406		initrdVal,
4407		config->cfi);
4408		free(initrdVal);
4409		needs &= ~NEED_INITRD;
4410		}
4411		} else if (needs & NEED_KERNEL) {
4412		/* template is multi but new is not,
4413		* insert the kernel in the first
4414		* module slot
4415		*/
4416		tmplLine->type =
4417		preferredLineType(LT_KERNEL,
4418		config->cfi);
4419		free(tmplLine->elements[0].item);
4420		tmplLine->elements[0].item =
4421		strdup(getKeywordByType
4422		(tmplLine->type,
4423		config->cfi)->key);
4424		newLine =
4425		addLineTmpl(new, tmplLine, newLine,
4426		newKernelPath +
4427		strlen(prefix),
4428		config->cfi);
4429		needs &= ~NEED_KERNEL;
4430		} else if (needs & NEED_INITRD) {
4431		char *initrdVal;
4432		/* template is multi but new is not,
4433		* insert the initrd in the second
4434		* module slot
4435		*/
4436		tmplLine->type =
4437		preferredLineType(LT_INITRD,
4438		config->cfi);
4439		free(tmplLine->elements[0].item);
4440		tmplLine->elements[0].item =
4441		strdup(getKeywordByType
4442		(tmplLine->type,
4443		config->cfi)->key);
4444		initrdVal =
4445		getInitrdVal(config, prefix,
4446		tmplLine,
4447		newKernelInitrd,
4448		extraInitrds,
4449		extraInitrdCount);
4450		newLine =
4451		addLineTmpl(new, tmplLine, newLine,
4452		initrdVal, config->cfi);
4453		free(initrdVal);
4454		needs &= ~NEED_INITRD;
4455		}
4456
4457		} else if (isinitrd(tmplLine->type)
4458		&& tmplLine->numElements >= 2) {
4459		if (needs & NEED_INITRD && new->multiboot
4460		&& !template->multiboot
4461		&& config->cfi->mbInitRdIsModule) {
4462		/* make sure we don't insert the
4463		* module initrd before the module
4464		* kernel... if we don't do it here,
4465		* it will be inserted following the
4466		* template.
4467		*/
4468		if (!needs & NEED_KERNEL) {
4469		char *initrdVal;
4470
4471		initrdVal =
4472		getInitrdVal(config, prefix,
4473		tmplLine,
4474		newKernelInitrd,
4475		extraInitrds,
4476		extraInitrdCount);
4477		newLine =
4478		addLine(new, config->cfi,
4479		LT_MBMODULE,
4480		config->
4481		secondaryIndent,
4482		initrdVal);
4483		free(initrdVal);
4484		needs &= ~NEED_INITRD;
4485		}
4486		} else if (needs & NEED_INITRD) {
4487		char *initrdVal;
4488		initrdVal =
4489		getInitrdVal(config, prefix,
4490		tmplLine,
4491		newKernelInitrd,
4492		extraInitrds,
4493		extraInitrdCount);
4494		newLine =
4495		addLineTmpl(new, tmplLine, newLine,
4496		initrdVal, config->cfi);
4497		free(initrdVal);
4498		needs &= ~NEED_INITRD;
4499		}
4500
4501		} else if (tmplLine->type == LT_MENUENTRY &&
4502		(needs & NEED_TITLE)) {
4503		requote(tmplLine, config->cfi);
4504		char *nkt = malloc(strlen(newKernelTitle) + 3);
4505		strcpy(nkt, "'");
4506		strcat(nkt, newKernelTitle);
4507		strcat(nkt, "'");
4508		newLine =
4509		addLineTmpl(new, tmplLine, newLine, nkt,
4510		config->cfi);
4511		free(nkt);
4512		needs &= ~NEED_TITLE;
4513		} else if (tmplLine->type == LT_TITLE &&
4514		(needs & NEED_TITLE)) {
4515		if (tmplLine->numElements >= 2) {
4516		newLine =
4517		addLineTmpl(new, tmplLine, newLine,
4518		newKernelTitle,
4519		config->cfi);
4520		needs &= ~NEED_TITLE;
4521		} else if (tmplLine->numElements == 1 &&
4522		config->cfi->titleBracketed) {
4523		/* addLineTmpl doesn't handle
4524		* titleBracketed */
4525		newLine =
4526		addLine(new, config->cfi, LT_TITLE,
4527		tmplLine->indent,
4528		newKernelTitle);
4529		needs &= ~NEED_TITLE;
4530		}
4531		} else if (tmplLine->type == LT_ECHO) {
4532		requote(tmplLine, config->cfi);
4533		static const char *prefix = "'Loading ";
4534		if (tmplLine->numElements > 1 &&
4535		strstr(tmplLine->elements[1].item, prefix)
4536		&& masterLine->next
4537		&& iskernel(masterLine->next->type)) {
4538		char *newTitle =
4539		malloc(strlen(prefix) +
4540		strlen(newKernelTitle) + 2);
4541
4542		strcpy(newTitle, prefix);
4543		strcat(newTitle, newKernelTitle);
4544		strcat(newTitle, "'");
4545		newLine =
4546		addLine(new, config->cfi, LT_ECHO,
4547		tmplLine->indent, newTitle);
4548		free(newTitle);
4549		} else {
4550		/* pass through other lines from the
4551		* template */
4552		newLine =
4553		addLineTmpl(new, tmplLine, newLine,
4554		NULL, config->cfi);
4555		}
4556		} else if (tmplLine->type == LT_DEVTREE &&
4557		tmplLine->numElements == 2
4558		&& newDevTreePath) {
4559		newLine =
4560		addLineTmpl(new, tmplLine, newLine,
4561		newDevTreePath + strlen(prefix),
4562		config->cfi);
4563		needs &= ~NEED_DEVTREE;
4564		} else if (tmplLine->type == LT_ENTRY_END
4565		&& needs & NEED_DEVTREE) {
4566		const char *ndtp = newDevTreePath;
4567		if (!strncmp
4568		(newDevTreePath, prefix, strlen(prefix)))
4569		ndtp += strlen(prefix);
4570		newLine = addLine(new, config->cfi, LT_DEVTREE,
4571		config->secondaryIndent,
4572		ndtp);
4573		needs &= ~NEED_DEVTREE;
4574		newLine =
4575		addLineTmpl(new, tmplLine, newLine, NULL,
4576		config->cfi);
4577		} else {
4578		/* pass through other lines from the template */
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, NULL,
4581		config->cfi);
4582		}
4583		}
4584
4585		} else {
4586		/* don't have a template, so start the entry with the
4587		* appropriate starting line
4588		*/
4589		switch (config->cfi->entryStart) {
4590		case LT_KERNEL:
4591		case LT_KERNEL_EFI:
4592		case LT_KERNEL_16:
4593		if (new->multiboot && config->cfi->mbHyperFirst) {
4594		/* fall through to LT_HYPER */
4595		} else {
4596		newLine = addLine(new, config->cfi,
4597		preferredLineType(LT_KERNEL,
4598		config->
4599		cfi),
4600		config->primaryIndent,
4601		newKernelPath +
4602		strlen(prefix));
4603		needs &= ~NEED_KERNEL;
4604		break;
4605		}
4606
4607		case LT_HYPER:
4608		newLine = addLine(new, config->cfi, LT_HYPER,
4609		config->primaryIndent,
4610		newMBKernel + strlen(prefix));
4611		needs &= ~NEED_MB;
4612		break;
4613
4614		case LT_MENUENTRY:{
4615		char *nkt = malloc(strlen(newKernelTitle) + 3);
4616		strcpy(nkt, "'");
4617		strcat(nkt, newKernelTitle);
4618		strcat(nkt, "'");
4619		newLine =
4620		addLine(new, config->cfi, LT_MENUENTRY,
4621		config->primaryIndent, nkt);
4622		free(nkt);
4623		needs &= ~NEED_TITLE;
4624		needs |= NEED_END;
4625		break;
4626		}
4627		case LT_TITLE:
4628		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4629		char *templabel;
4630		int x = 0, y = 0;
4631
4632		templabel = strdup(newKernelTitle);
4633		while (templabel[x]) {
4634		if (templabel[x] == ' ') {
4635		y = x;
4636		while (templabel[y]) {
4637		templabel[y] =
4638		templabel[y + 1];
4639		y++;
4640		}
4641		}
4642		x++;
4643		}
4644		newLine = addLine(new, config->cfi, LT_TITLE,
4645		config->primaryIndent,
4646		templabel);
4647		free(templabel);
4648		} else {
4649		newLine = addLine(new, config->cfi, LT_TITLE,
4650		config->primaryIndent,
4651		newKernelTitle);
4652		}
4653		needs &= ~NEED_TITLE;
4654		break;
4655
4656		default:
4657		abort();
4658		}
4659		}
4660
4661		struct singleLine *endLine = NULL;
4662		endLine = getLineByType(LT_ENTRY_END, new->lines);
4663		if (endLine) {
4664		removeLine(new, endLine);
4665		needs |= NEED_END;
4666		}
4667
4668		/* add the remainder of the lines, i.e. those that either
4669		* weren't present in the template, or in the case of no template,
4670		* all the lines following the entryStart.
4671		*/
4672		if (needs & NEED_TITLE) {
4673		newLine = addLine(new, config->cfi, LT_TITLE,
4674		config->secondaryIndent, newKernelTitle);
4675		needs &= ~NEED_TITLE;
4676		}
4677		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4678		newLine = addLine(new, config->cfi, LT_HYPER,
4679		config->secondaryIndent,
4680		newMBKernel + strlen(prefix));
4681		needs &= ~NEED_MB;
4682		}
4683		if (needs & NEED_KERNEL) {
4684		newLine = addLine(new, config->cfi,
4685		(new->multiboot
4686		&& getKeywordByType(LT_MBMODULE,
4687		config->cfi))
4688		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4689		config->
4690		cfi),
4691		config->secondaryIndent,
4692		newKernelPath + strlen(prefix));
4693		needs &= ~NEED_KERNEL;
4694		}
4695		if (needs & NEED_MB) {
4696		newLine = addLine(new, config->cfi, LT_HYPER,
4697		config->secondaryIndent,
4698		newMBKernel + strlen(prefix));
4699		needs &= ~NEED_MB;
4700		}
4701		if (needs & NEED_INITRD) {
4702		char *initrdVal;
4703		initrdVal =
4704		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4705		extraInitrds, extraInitrdCount);
4706		newLine =
4707		addLine(new, config->cfi,
4708		(new->multiboot
4709		&& getKeywordByType(LT_MBMODULE, config->cfi))
4710		? LT_MBMODULE : preferredLineType(LT_INITRD,
4711		config->cfi),
4712		config->secondaryIndent, initrdVal);
4713		free(initrdVal);
4714		needs &= ~NEED_INITRD;
4715		}
4716		if (needs & NEED_DEVTREE) {
4717		newLine = addLine(new, config->cfi, LT_DEVTREE,
4718		config->secondaryIndent, newDevTreePath);
4719		needs &= ~NEED_DEVTREE;
4720		}
4721
4722		/* NEEDS_END must be last on bootloaders that need it... */
4723		if (needs & NEED_END) {
4724		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4725		config->secondaryIndent, NULL);
4726		needs &= ~NEED_END;
4727		}
4728
4729		if (needs) {
4730		printf(_("grubby: needs=%d, aborting\n"), needs);
4731		abort();
4732		}
4733
4734		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4735		newMBKernelArgs, NULL)) {
4736		config->isModified = 1;
4737		return 1;
4738		}
4739
4740		return 0;
4741		}
4742
4743		int main(int argc, const char **argv)
4744		{
4745		poptContext optCon;
4746		const char *grubConfig = NULL;
4747		char *outputFile = NULL;
4748		int arg = 0;
4749		int flags = 0;
4750		int badImageOkay = 0;
4751		int configureGrub2 = 0;
4752		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4753		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4754		int configureExtLinux = 0;
4755		int bootloaderProbe = 0;
4756		int extraInitrdCount = 0;
4757		char *updateKernelPath = NULL;
4758		char *newKernelPath = NULL;
4759		char *removeKernelPath = NULL;
4760		char *newKernelArgs = NULL;
4761		char *newKernelInitrd = NULL;
4762		char *newKernelTitle = NULL;
4763		char *newDevTreePath = NULL;
4764		char *newMBKernel = NULL;
4765		char *newMBKernelArgs = NULL;
4766		int newIndex = 0;
4767		char *removeMBKernelArgs = NULL;
4768		char *removeMBKernel = NULL;
4769		char *bootPrefix = NULL;
4770		char *defaultKernel = NULL;
4771		char *removeArgs = NULL;
4772		char *kernelInfo = NULL;
4773		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4774		char *envPath = NULL;
4775		const char *chptr = NULL;
4776		struct configFileInfo *cfi = NULL;
4777		struct grubConfig *config;
4778		struct singleEntry *template = NULL;
4779		int copyDefault = 0, makeDefault = 0;
4780		int displayDefault = 0;
4781		int displayDefaultIndex = 0;
4782		int displayDefaultTitle = 0;
4783		int defaultIndex = -1;
4784		struct poptOption options[] = {
4785		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4786		_("add an entry for the specified kernel"), _("kernel-path")},
4787		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4788		_("add an entry for the specified multiboot kernel"), NULL},
4789		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4790		_("default arguments for the new kernel or new arguments for "
4791		"kernel being updated"), _("args")},
4792		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4793		_("default arguments for the new multiboot kernel or "
4794		"new arguments for multiboot kernel being updated"), NULL},
4795		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4796		_
4797		("don't sanity check images in boot entries (for testing only)"),
4798		NULL},
4799		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4800		_
4801		("filesystem which contains /boot directory (for testing only)"),
4802		_("bootfs")},
4803		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4804		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4805		_("check which bootloader is installed on boot sector")},
4806		#endif
4807		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4808		_("path to grub config file to update (\"-\" for stdin)"),
4809		_("path")},
4810		{"copy-default", 0, 0, &copyDefault, 0,
4811		_("use the default boot entry as a template for the new entry "
4812		"being added; if the default is not a linux image, or if "
4813		"the kernel referenced by the default image does not exist, "
4814		"the first linux entry whose kernel does exist is used as the "
4815		"template"), NULL},
4816		{"debug", 0, 0, &debug, 0,
4817		_("print debugging information for failures")},
4818		{"default-kernel", 0, 0, &displayDefault, 0,
4819		_("display the path of the default kernel")},
4820		{"default-index", 0, 0, &displayDefaultIndex, 0,
4821		_("display the index of the default kernel")},
4822		{"default-title", 0, 0, &displayDefaultTitle, 0,
4823		_("display the title of the default kernel")},
4824		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4825		_("device tree file for new stanza"), _("dtb-path")},
4826		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4827		_("device tree directory for new stanza"), _("dtb-path")},
4828		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4829		_("configure elilo bootloader")},
4830		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4831		_("force grub2 stanzas to use efi")},
4832		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4833		_("path for environment data"),
4834		_("path")},
4835		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4836		_("configure extlinux bootloader (from syslinux)")},
4837		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4838		_("configure grub bootloader")},
4839		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4840		_("configure grub2 bootloader")},
4841		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4842		_("display boot information for specified kernel"),
4843		_("kernel-path")},
4844		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4845		_("initrd image for the new kernel"), _("initrd-path")},
4846		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4847		_
4848		("auxiliary initrd image for things other than the new kernel"),
4849		_("initrd-path")},
4850		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4851		_("configure lilo bootloader")},
4852		{"make-default", 0, 0, &makeDefault, 0,
4853		_("make the newly added entry the default boot entry"), NULL},
4854		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4855		_("path to output updated config file (\"-\" for stdout)"),
4856		_("path")},
4857		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4858		_("remove kernel arguments"), NULL},
4859		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4860		_("remove multiboot kernel arguments"), NULL},
4861		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4862		_("remove all entries for the specified kernel"),
4863		_("kernel-path")},
4864		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4865		_("remove all entries for the specified multiboot kernel"),
4866		NULL},
4867		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4868		_("make the first entry referencing the specified kernel "
4869		"the default"), _("kernel-path")},
4870		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4871		_("make the given entry index the default entry"),
4872		_("entry-index")},
4873		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4874		_("use the given index when creating a new entry"),
4875		_("entry-index")},
4876		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4877		_("configure silo bootloader")},
4878		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4879		_("title to use for the new kernel entry"), _("entry-title")},
4880		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4881		_("updated information for the specified kernel"),
4882		_("kernel-path")},
4883		{"version", 'v', 0, NULL, 'v',
4884		_("print the version of this program and exit"), NULL},
4885		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4886		_("configure yaboot bootloader")},
4887		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4888		_("configure zipl bootloader")},
4889		POPT_AUTOHELP {0, 0, 0, 0, 0}
4890		};
4891
4892		useextlinuxmenu = 0;
4893
4894		int i = 0;
4895		for (int j = 1; j < argc; j++)
4896		i += strlen(argv[j]) + 1;
4897		saved_command_line = malloc(i);
4898		if (!saved_command_line) {
4899		fprintf(stderr, "grubby: %m\n");
4900		exit(1);
4901		}
4902		saved_command_line[0] = '\0';
4903		for (int j = 1; j < argc; j++) {
4904		strcat(saved_command_line, argv[j]);
4905		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4906		}
4907
4908		optCon = poptGetContext("grubby", argc, argv, options, 0);
4909		poptReadDefaultConfig(optCon, 1);
4910
4911		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4912		switch (arg) {
4913		case 'v':
4914		printf("grubby version %s\n", VERSION);
4915		exit(0);
4916		break;
4917		case 'i':
4918		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4919		extraInitrds[extraInitrdCount++] =
4920		strdup(poptGetOptArg(optCon));
4921		} else {
4922		fprintf(stderr,
4923		_
4924		("grubby: extra initrd maximum is %d\n"),
4925		extraInitrdCount);
4926		return 1;
4927		}
4928		break;
4929		}
4930		}
4931
4932		if (arg < -1) {
4933		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4934		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4935		poptStrerror(arg));
4936		return 1;
4937		}
4938
4939		if ((chptr = poptGetArg(optCon))) {
4940		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4941		return 1;
4942		}
4943
4944	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
4945	newKernelPath || removeKernelPath || makeDefault ||	configureYaboot + configureSilo + configureZipl +
4946	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	configureExtLinux) > 1) {
4947	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	fprintf(stderr,
4948		_("grubby: cannot specify multiple bootloaders\n"));
4949		return 1;
4950		} else if (bootloaderProbe && grubConfig) {
4951		fprintf(stderr,
4952		_
4953		("grubby: cannot specify config file with --bootloader-probe\n"));
4954		return 1;
4955		} else if (configureGrub2) {
4956		cfi = &grub2ConfigType;
4957		if (envPath)
4958		cfi->envFile = envPath;
4959		} else if (configureLilo) {
4960		cfi = &liloConfigType;
4961		} else if (configureGrub) {
4962		cfi = &grubConfigType;
4963		} else if (configureELilo) {
4964		cfi = &eliloConfigType;
4965		} else if (configureYaboot) {
4966		cfi = &yabootConfigType;
4967		} else if (configureSilo) {
4968		cfi = &siloConfigType;
4969		} else if (configureZipl) {
4970		cfi = &ziplConfigType;
4971		} else if (configureExtLinux) {
4972		cfi = &extlinuxConfigType;
4973		useextlinuxmenu = 1;
4974		}
4975
4976		if (!cfi) {
4977		if (grub2FindConfig(&grub2ConfigType)) {
4978		cfi = &grub2ConfigType;
4979		if (envPath)
4980		cfi->envFile = envPath;
4981		} else
4982		#ifdef __ia64__
4983		cfi = &eliloConfigType;
4984		#elif __powerpc__
4985		cfi = &yabootConfigType;
4986		#elif __sparc__
4987		cfi = &siloConfigType;
4988		#elif __s390__
4989		cfi = &ziplConfigType;
4990		#elif __s390x__
4991		cfi = &ziplConfigtype;
4992		#else
4993		cfi = &grubConfigType;
4994		#endif
4995		}
4996
4997		if (!grubConfig) {
4998		if (cfi->findConfig)
4999		grubConfig = cfi->findConfig(cfi);
5000		if (!grubConfig)
5001		grubConfig = cfi->defaultConfig;
5002		}
5003
5004		if (bootloaderProbe && (displayDefault || kernelInfo ||
5005		newKernelPath || removeKernelPath || makeDefault
5006		|| defaultKernel || displayDefaultIndex
5007		|| displayDefaultTitle
5008		|| (defaultIndex >= 0))) {
5009		fprintf(stderr,
5010		_("grubby: --bootloader-probe may not be used with "
5011	"specified option"));	"specified option"));
5012	return 1;	return 1;
5013	}	}
5014
5015	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5016	removeKernelPath)) {	removeKernelPath)) {
5017	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5018	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5019	return 1;	return 1;
5020	}	}
5021
5022	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5023	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5024	return 1;	return 1;
5025	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5026	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5027	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5028	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5029	return 1;	return 1;
5030	}	}
5031
5032	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5033	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5034	"not be used together"));	"not be used together"));
5035	return 1;	return 1;
5036	}	}
5037
5038	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5039	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5040		"may not be used together\n"));
5041		return 1;
5042		} else if (defaultKernel && removeKernelPath &&
5043		!strcmp(defaultKernel, removeKernelPath)) {
5044		fprintf(stderr,
5045		_("grubby: cannot make removed kernel the default\n"));
5046		return 1;
5047		} else if (defaultKernel && newKernelPath &&
5048		!strcmp(defaultKernel, newKernelPath)) {
5049		makeDefault = 1;
5050		defaultKernel = NULL;
5051		} else if (defaultKernel && (defaultIndex >= 0)) {
5052		fprintf(stderr,
5053		_("grubby: --set-default and --set-default-index "
5054	"may not be used together\n"));	"may not be used together\n"));
5055	return 1;	return 1;
5056	} 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;
	}
5057
5058	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5059	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5060	"is used\n"));	_("grubby: output file must be specified if stdin "
5061	return 1;	"is used\n"));
5062	}	return 1;
5063		}
5064
5065	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5066	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5067	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5068	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5069	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5070	}	return 1;
5071		}
5072
5073	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5074
5075	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5076	if (!bootPrefix) {	if (!bootPrefix) {
5077	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5078	if (!bootPrefix) return 1;	if (!bootPrefix)
5079	} else {	return 1;
5080	/* this shouldn't end with a / */	} else {
5081	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5082	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5083		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5084		}
5085		} else {
5086		bootPrefix = "";
5087	}	}
	} else {
	bootPrefix = "";
	}
5088
5089	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5090	extraInitrdCount > 0) {	fprintf(stderr,
5091	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5092	return 1;	cfi->defaultConfig);
5093	}	return 1;
5094		}
5095
5096	if (bootloaderProbe) {	if (bootloaderProbe) {
5097	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5098	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5099
5100	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5101	if (grub2config) {	if (grub2config) {
5102	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5103	if (!gconfig)	if (!gconfig)
5104	gr2c = 1;	gr2c = 1;
5105	else	else
5106	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5107	}	}
	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");
5108
5109	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5110	}	if (!access(grubconfig, F_OK)) {
5111		gconfig = readConfig(grubconfig, &grubConfigType);
5112		if (!gconfig)
5113		grc = 1;
5114		else
5115		grc = checkForGrub(gconfig);
5116		}
5117
5118	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5119	if (!config) return 1;	lconfig =
5120		readConfig(liloConfigType.defaultConfig,
5121		&liloConfigType);
5122		if (!lconfig)
5123		lrc = 1;
5124		else
5125		lrc = checkForLilo(lconfig);
5126		}
5127
5128	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5129	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5130	struct singleEntry * entry;	&eliloConfigType);
5131	char * rootspec;	if (!econfig)
5132		erc = 1;
5133	if (config->defaultImage == -1) return 0;	else
5134	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5135	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));
5136
5137	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5138		lconfig =
5139		readConfig(extlinuxConfigType.defaultConfig,
5140		&extlinuxConfigType);
5141		if (!lconfig)
5142		extrc = 1;
5143		else
5144		extrc = checkForExtLinux(lconfig);
5145		}
5146
5147		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5148		yconfig = readConfig(yabootConfigType.defaultConfig,
5149		&yabootConfigType);
5150		if (!yconfig)
5151		yrc = 1;
5152		else
5153		yrc = checkForYaboot(yconfig);
5154		}
5155
5156	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5157	struct singleLine * line;	|| erc == 1)
5158	struct singleEntry * entry;	return 1;
5159
5160	if (config->defaultImage == -1) return 0;	if (lrc == 2)
5161	entry = findEntryByIndex(config, config->defaultImage);	printf("lilo\n");
5162	if (!entry) return 0;	if (gr2c == 2)
5163		printf("grub2\n");
5164	if (!configureGrub2) {	if (grc == 2)
5165	line = getLineByType(LT_TITLE, entry->lines);	printf("grub\n");
5166	if (!line) return 0;	if (extrc == 2)
5167	printf("%s\n", line->elements[1].item);	printf("extlinux\n");
5168		if (yrc == 2)
5169	} else {	printf("yaboot\n");
5170	char * title;	if (erc == 2)
5171		printf("elilo\n");
5172	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");
5173	line = getLineByType(LT_MENUENTRY, entry->lines);	return 0;
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5174	}	}
	return 0;
5175
5176	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5177	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5178	printf("%i\n", config->defaultImage);	exit(1);
5179		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5180
5181	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5182	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5183	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5184	bootPrefix, flags);
5185	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5186	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5187	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5188	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5189	if (updateInitrd(config, updateKernelPath, bootPrefix,
5190	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5191	}	return 0;
5192	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5193	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5194	extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5195	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5196		if (!entry)
5197		return 0;
5198	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5199	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5200	"Not writing out new config.\n"));
5201	return 1;	line =
5202	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5203		LT_KERNEL_16, entry->lines);
5204		if (!line)
5205		return 0;
5206
5207		rootspec = getRootSpecifier(line->elements[1].item);
5208		printf("%s%s\n", bootPrefix, line->elements[1].item +
5209		((rootspec != NULL) ? strlen(rootspec) : 0));
5210
5211		return 0;
5212
5213		} else if (displayDefaultTitle) {
5214		struct singleLine *line;
5215		struct singleEntry *entry;
5216
5217		if (config->defaultImage == NO_DEFAULT_ENTRY)
5218		return 0;
5219		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5220		cfi->defaultIsSaved)
5221		config->defaultImage = FIRST_ENTRY_INDEX;
5222		entry = findEntryByIndex(config, config->defaultImage);
5223		if (!entry)
5224		return 0;
5225
5226		if (!configureGrub2) {
5227		char *title;
5228		line = getLineByType(LT_TITLE, entry->lines);
5229		if (!line)
5230		return 0;
5231		title = extractTitle(config, line);
5232		if (!title)
5233		return 0;
5234		printf("%s\n", title);
5235		free(title);
5236		} else {
5237		char *title;
5238
5239		dbgPrintf
5240		("This is GRUB2, default title is embeded in menuentry\n");
5241		line = getLineByType(LT_MENUENTRY, entry->lines);
5242		if (!line)
5243		return 0;
5244		title = grub2ExtractTitle(line);
5245		if (title)
5246		printf("%s\n", title);
5247		}
5248		return 0;
5249
5250		} else if (displayDefaultIndex) {
5251		if (config->defaultImage == NO_DEFAULT_ENTRY)
5252		return 0;
5253		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5254		cfi->defaultIsSaved)
5255		config->defaultImage = FIRST_ENTRY_INDEX;
5256		printf("%i\n", config->defaultImage);
5257		return 0;
5258
5259		} else if (kernelInfo)
5260		return displayInfo(config, kernelInfo, bootPrefix);
5261
5262		if (copyDefault) {
5263		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5264		if (!template)
5265		return 1;
5266		}
5267
5268		markRemovedImage(config, removeKernelPath, bootPrefix);
5269		markRemovedImage(config, removeMBKernel, bootPrefix);
5270		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5271		makeDefault, bootPrefix, flags, defaultIndex);
5272		setFallbackImage(config, newKernelPath != NULL);
5273		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5274		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5275		return 1;
5276		if (updateKernelPath && newKernelInitrd) {
5277		if (newMBKernel) {
5278		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5279		bootPrefix, newKernelInitrd,
5280		newKernelTitle))
5281		return 1;
5282		} else {
5283		if (updateInitrd(config, updateKernelPath, bootPrefix,
5284		newKernelInitrd, newKernelTitle))
5285		return 1;
5286		}
5287		}
5288		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5289		newKernelTitle, newKernelArgs, newKernelInitrd,
5290		(const char **)extraInitrds, extraInitrdCount,
5291		newMBKernel, newMBKernelArgs, newDevTreePath,
5292		newIndex))
5293		return 1;
5294
5295		if (numEntries(config) == 0) {
5296		fprintf(stderr,
5297		_("grubby: doing this would leave no kernel entries. "
5298		"Not writing out new config.\n"));
5299		return 1;
5300		}
5301
5302	if (!outputFile)	if (!outputFile)
5303	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5304
5305	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5306	}	}

---

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