Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1751 by niro, Sat Feb 18 01:10:10 2012 UTC	revision 3138 by niro, Tue Jul 7 11:11:04 2020 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/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. */	}
	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
	dbgPrintf("found\n");
	return grub_cfg;
	}
296
297	dbgPrintf("not found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return configFiles[i];	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	int sizeOfSingleLine(struct singleLine * line) {	static char *shellEscape(const char *s)
341	int i;	{
342	int count = 0;	int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	for (i = 0; i < line->numElements; i++) {	char *ret = calloc(l + 1, sizeof(*ret));
345	int indentSize = 0;	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	count = count + strlen(line->elements[i].item);	static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359	indentSize = strlen(line->elements[i].indent);	if ((s[l - 1] == '\'' && s[0] == '\'')
360	if (indentSize > 0)	|| (s[l - 1] == '"' && s[0] == '"')) {
361	count = count + indentSize;	memmove(s, s + 1, l - 2);
362	else	s[l - 2] = '\0';
363	/* be extra safe and add room for whitespaces */	}
364	count = count + 1;	}
	}
365
366	/* room for trailing terminator */	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367	count = count + 1;	{
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	return count;	/* 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	char *grub2ExtractTitle(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	char * current;	{
400	char * current_indent;	int count = 0;
	int current_len;
	int current_indent_len;
	int i;
401
402	/* bail out if line does not start with menuentry */	for (int i = 0; i < line->numElements; i++) {
403	if (strcmp(line->elements[0].item, "menuentry"))	int indentSize = 0;
	return NULL;
404
405	i = 1;	count = count + strlen(line->elements[i].item);
	current = line->elements[i].item;
	current_len = strlen(current);
406
407	/* if second word is quoted, strip the quotes and return single word */	indentSize = strlen(line->elements[i].indent);
408	if ((*current == '\'') && (*(current + current_len - 1) == '\'')) {	if (indentSize > 0)
409	char *tmp;	count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415	tmp = strdup(current);	/* room for trailing terminator */
416	*(tmp + current_len - 1) = '\0';	count = count + 1;
	return ++tmp;
	}
417
418	/* if no quotes, return second word verbatim */	return count;
419	if (*current != '\'') {	}
420	return current;
421	}	static int isquote(char q)
422		{
423		if (q == '\'' || q == '\"')
424		return 1;
425		return 0;
426		}
427
428		static int iskernel(enum lineType_e type)
429		{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432		}
433
434		static int isinitrd(enum lineType_e type)
435		{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438		}
439
440	/* second element start with a quote, so we have to find the element	char *grub2ExtractTitle(struct singleLine *line)
441	* whose last character is also quote (assuming it's the closing one) */	{
442	if (*current == '\'') {	char *current;
443	int resultMaxSize;	char *current_indent;
444	char * result;	int current_len;
445		int current_indent_len;
446	resultMaxSize = sizeOfSingleLine(line);	int i;
447	result = malloc(resultMaxSize);
448	snprintf(result, resultMaxSize, "%s", ++current);	/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452	i++;	i = 1;
	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 (*(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 result;	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	return NULL;	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;
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 size_t getRootSpecifier(const 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	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->next = NULL;
961	if (fputc('"', out) == EOF) return -1;	newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < newLine->numElements; i++) {
967	if (i < line->numElements - 1)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971		return newLine;
972		}
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		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	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;
	}
	}
1262
1263	rc = readFile(in, &incoming);	static struct grubConfig *readConfig(const char *inName,
1264	close(in);	struct configFileInfo *cfi)
1265	if (rc) return NULL;	{
1266		int in;
1267	head = incoming;	char *incoming = NULL, *head;
1268	cfg = malloc(sizeof(*cfg));	int rc;
1269	cfg->primaryIndent = strdup("");	int sawEntry = 0;
1270	cfg->secondaryIndent = strdup("\t");	int movedLine = 0;
1271	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	struct grubConfig *cfg;
1272	cfg->cfi = cfi;	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	cfg->theLines = NULL;	char *end;
1274	cfg->entries = NULL;	struct singleEntry *entry = NULL;
1275	cfg->fallbackImage = 0;	int len;
1276		char *buf;
1277	/* copy everything we have */
1278	while (*head) {	if (inName == NULL) {
1279	line = malloc(sizeof(*line));	printf("Could not find bootloader configuration\n");
1280	lineInit(line);	exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		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	if (getNextLine(&head, line, cfi)) {	rc = readFile(in, &incoming);
1292	free(line);	close(in);
1293	/* XXX memory leak of everything in cfg */	if (rc)
1294	return NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (!sawEntry && line->numElements) {	cfg = malloc(sizeof(*cfg));
1298	free(cfg->primaryIndent);	cfg->primaryIndent = strdup("");
1299	cfg->primaryIndent = strdup(line->indent);	cfg->secondaryIndent = strdup("\t");
1300	} else if (line->numElements) {	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	free(cfg->secondaryIndent);	cfg->cfi = cfi;
1302	cfg->secondaryIndent = strdup(line->indent);	cfg->theLines = NULL;
1303	}	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {	cfg->isModified = 0;
1306	sawEntry = 1;
1307	if (!entry) {	/* copy everything we have */
1308	cfg->entries = malloc(sizeof(*entry));	while (*head) {
1309	entry = cfg->entries;	line = malloc(sizeof(*line));
1310	} else {	lineInit(line);
1311	entry->next = malloc(sizeof(*entry));
1312	entry = entry->next;	if (getNextLine(&head, line, cfi)) {
1313	}	free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	entry->skip = 0;	if (!sawEntry && line->numElements) {
1319	entry->multiboot = 0;	free(cfg->primaryIndent);
1320	entry->lines = NULL;	cfg->primaryIndent = strdup(line->indent);
1321	entry->next = NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (line->type == LT_SET_VARIABLE) {	}
	int i;
	dbgPrintf("found 'set' command (%d elements): ", line->numElements);
	dbgPrintf("%s", line->indent);
	for (i = 0; i < line->numElements; i++)
	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1325
1326	for (i = 1; i < line->numElements; i++) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].item);	sawEntry = 1;
1328	free(line->elements[i].item);	if (!entry) {
1329		cfg->entries = malloc(sizeof(*entry));
1330		entry = cfg->entries;
1331		} else {
1332		entry->next = malloc(sizeof(*entry));
1333		entry = entry->next;
1334		}
1335
1336	if ((i + 1) != line->numElements) {	entry->skip = 0;
1337	strcat(buf, line->elements[i].indent);	entry->multiboot = 0;
1338	free(line->elements[i].indent);	entry->lines = NULL;
1339	}	entry->next = NULL;
1340	}	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (*line->elements[1].item == '"')
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (line->elements[last].item[len] == '"')
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1341
1342	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1343	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1344	entry->lines = line;	line->numElements);
1345	else	dbgPrintf("%s", line->indent);
1346	last->next = line;	for (int i = 0; i < line->numElements; i++)
1347	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1350	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1351	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1352	sawEntry = 0;	if (kwType && line->numElements == 3
1353	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (!cfg->theLines)	&& !is_special_grub2_variable(
1355	cfg->theLines = line;	line->elements[2].item)) {
1356	else	dbgPrintf("Line sets default config\n");
1357	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368	last = line;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	free(incoming);	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	if (defaultLine) {	cfg->fallbackImage =
1391	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1392	cfi->defaultSupportSaved &&	if (*end)
1393	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1394	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1395	} else if (cfi->defaultIsVariable) {	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	char *value = defaultLine->elements[2].item;	|| (line->type == LT_TITLE
1397	while (*value && (*value == '"' || *value == '\'' ||	&& line->numElements > 1)) {
1398	*value == ' ' || *value == '\t'))	/* make the title/default a single argument (undoing
1399	value++;	* our parsing) */
1400	cfg->defaultImage = strtol(value, &end, 10);	len = 0;
1401	while (*end && (*end == '"' || *end == '\'' ||	for (int i = 1; i < line->numElements; i++) {
1402	*end == ' ' || *end == '\t'))	len += strlen(line->elements[i].item);
1403	end++;	len += strlen(line->elements[i].indent);
1404	if (*end) cfg->defaultImage = -1;	}
1405	} else if (cfi->defaultSupportSaved &&	buf = malloc(len + 1);
1406	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	*buf = '\0';
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1407
1408	if (entry){	for (int i = 1; i < line->numElements; i++) {
1409	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1410	}else{	free(line->elements[i].item);
1411	cfg->defaultImage = -1;
1412	}	if ((i + 1) != line->numElements) {
1413	}	strcat(buf, line->elements[i].indent);
1414	} else {	free(line->elements[i].indent);
1415	cfg->defaultImage = 0;	}
1416	}	}
1417
1418	return cfg;	line->elements[1].indent =
1419	}	line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1438	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1439	struct singleEntry * entry;	*extras = '\0';
1440	struct singleLine * line;
1441	int i;	/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1446	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1447	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)	&& quote_char == '\0') {
1448	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1449	else if (cfg->defaultImage > -1) {	quote_char = *line->elements[i].item;
1450	if (cfg->cfi->defaultIsIndex) {	title = line->elements[i].item + 1;
1451	if (cfg->cfi->defaultIsVariable) {	} else {
1452	fprintf(out, "%sset default=\"%d\"\n", indent,	title = line->elements[i].item;
1453	cfg->defaultImage);	}
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1454
1455	entry = cfg->entries;	len = strlen(title);
1456	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	i = 0;	/* get extras */
1466	while (entry && i < image) {	int count = 0;
1467	entry = entry->next;	quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1476	i++;	(line->elements[i].item, "menuentry"))
1477	}	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	if (!entry) return;	len = strlen(line->elements[i].item);
1488
1489	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1494	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1495	line->elements[1].item);	line->elements[1].indent =
1496	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1497	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1498	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1499	extractTitle(line));	line->elements[line->numElements - 2].indent;
1500	}	line->elements[2].item = extras;
1501	}	line->numElements = 3;
1502	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503	}	/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1511	const char * prefix) {	memmove(line->elements[1].item,
1512	FILE * out;	line->elements[1].item + 1,
1513	struct singleLine * line;	strlen(line->elements[1].item +
1514	struct singleEntry * entry;	1) + 1);
1515	char * tmpOutName;
1516	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1517	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1518	int i;	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520	if (!strcmp(outName, "-")) {	}
1521	out = stdout;	}
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(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;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1580	}	}
	}
	return 0;
	}
1581
1582	static int numEntries(struct grubConfig *cfg) {	free(incoming);
	int i = 0;
	struct singleEntry * entry;
	entry = cfg->entries;
	while (entry) {
	if (!entry->skip)
	i++;
	entry = entry->next;
	}
	return i;
	}
1583
1584	static char *findDiskForRoot()	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	{	if (defaultLine) {
1586	int fd;	if (defaultLine->numElements > 2 &&
1587	char buf[65536];	cfi->defaultSupportSaved &&
1588	char *devname;	!strncmp(defaultLine->elements[2].item,
1589	char *chptr;	"\"${saved_entry}\"", 16)) {
1590	int rc;	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 ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	if (entry) {
1674	fprintf(stderr, "grubby: failed to open %s: %s\n",	cfg->defaultImage = i;
1675	_PATH_MOUNTED, strerror(errno));	} else {
1676	return NULL;	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	rc = read(fd, buf, sizeof(buf) - 1);	return cfg;
1697	if (rc <= 0) {	}
1698	fprintf(stderr, "grubby: failed to read %s: %s\n",
1699	_PATH_MOUNTED, strerror(errno));	static void writeDefault(FILE * out, char *indent,
1700	close(fd);	char *separator, struct grubConfig *cfg)
1701	return NULL;	{
1702	}	struct singleEntry *entry;
1703	close(fd);	struct singleLine *line;
1704	buf[rc] = '\0';	int i;
1705	chptr = buf;
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	while (chptr && chptr != buf+rc) {	return;
1708	devname = chptr;
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710	/*	fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711	* The first column of a mtab entry is the device, but if the entry is a	else if (cfg->cfi->defaultIsSaved) {
1712	* special device it won't start with /, so move on to the next line.	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713	*/	if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714	if (*devname != '/') {	char *title;
1715	chptr = strchr(chptr, '\n');	int trueIndex, currentIndex;
1716	if (chptr)
1717	chptr++;	trueIndex = 0;
1718	continue;	currentIndex = 0;
1719	}
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721	/* Seek to the next space */	if (!entry->skip) {
1722	chptr = strchr(chptr, ' ');	if (trueIndex == cfg->defaultImage) {
1723	if (!chptr) {	break;
1724	fprintf(stderr, "grubby: error parsing %s: %s\n",	}
1725	_PATH_MOUNTED, strerror(errno));	trueIndex++;
1726	return NULL;	}
1727	}	currentIndex++;
1728		}
1729	/*	line = getLineByType(LT_MENUENTRY, entry->lines);
1730	* The second column of a mtab entry is the mount point, we are looking	if (!line)
1731	* for '/' obviously.	line = getLineByType(LT_TITLE, entry->lines);
1732	*/	if (line) {
1733	if (*(++chptr) == '/' && *(++chptr) == ' ') {	title = extractTitle(cfg, line);
1734	/*	if (title)
1735	* Move back 2, which is the first space after the device name, set	cfg->cfi->setEnv(cfg->cfi,
1736	* it to \0 so strdup will just get the devicename.	"saved_entry", title);
1737	*/	}
1738	chptr -= 2;	}
1739	*chptr = '\0';	} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740	return strdup(devname);	if (cfg->cfi->defaultIsIndex) {
1741	}	if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743	/* Next line */	cfg->defaultImage);
1744	chptr = strchr(chptr, '\n');	} else {
1745	if (chptr)	fprintf(out, "%sdefault%s%d\n", indent,
1746	chptr++;	separator, cfg->defaultImage);
1747	}	}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767	return NULL;	line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783	}	}
1784
1785	void printEntry(struct singleEntry * entry) {	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	int i;	const char *prefix)
1787	struct singleLine * line;	{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800		} else {
1801		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803		int len = 256;
1804		int rc;
1805
1806		/* most likely the symlink is relative, so change our
1807		directory to the dir of the symlink */
1808		char *dir = strdupa(outName);
1809		rc = chdir(dirname(dir));
1810		do {
1811		buf = alloca(len + 1);
1812		rc = readlink(basename(outName), buf, len);
1813		if (rc == len)
1814		len += 256;
1815		} while (rc == len);
1816
1817		if (rc < 0) {
1818		fprintf(stderr,
1819		_
1820		("grubby: error readlink link %s: %s\n"),
1821		outName, strerror(errno));
1822		return 1;
1823		}
1824
1825		outName = buf;
1826		outName[rc] = '\0';
1827		}
1828
1829	for (line = entry->lines; line; line = line->next) {	tmpOutName = alloca(strlen(outName) + 2);
1830	fprintf(stderr, "DBG: %s", line->indent);	sprintf(tmpOutName, "%s-", outName);
1831	for (i = 0; i < line->numElements; i++) {	out = fopen(tmpOutName, "w");
1832	fprintf(stderr, "%s%s",	if (!out) {
1833	line->elements[i].item, line->elements[i].indent);	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834		tmpOutName, strerror(errno));
1835		return 1;
1836		}
1837
1838		if (!stat(outName, &sb)) {
1839		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840		fprintf(stderr,
1841		_
1842		("grubby: error setting perms on %s: %s\n"),
1843		tmpOutName, strerror(errno));
1844		fclose(out);
1845		unlink(tmpOutName);
1846		return 1;
1847		}
1848		}
1849		}
1850
1851		line = cfg->theLines;
1852		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1853		while (line) {
1854		if (line->type == LT_SET_VARIABLE && defaultKw &&
1855		line->numElements == 3 &&
1856		!strcmp(line->elements[1].item, defaultKw->key) &&
1857		!is_special_grub2_variable(line->elements[2].item)) {
1858		writeDefault(out, line->indent,
1859		line->elements[0].indent, cfg);
1860		needs &= ~MAIN_DEFAULT;
1861		} else if (line->type == LT_DEFAULT) {
1862		writeDefault(out, line->indent,
1863		line->elements[0].indent, cfg);
1864		needs &= ~MAIN_DEFAULT;
1865		} else if (line->type == LT_FALLBACK) {
1866		if (cfg->fallbackImage > -1)
1867		fprintf(out, "%s%s%s%d\n", line->indent,
1868		line->elements[0].item,
1869		line->elements[0].indent,
1870		cfg->fallbackImage);
1871		} else {
1872		if (lineWrite(out, line, cfg->cfi) == -1) {
1873		fprintf(stderr,
1874		_("grubby: error writing %s: %s\n"),
1875		tmpOutName, strerror(errno));
1876		fclose(out);
1877		unlink(tmpOutName);
1878		return 1;
1879		}
1880		}
1881
1882		line = line->next;
1883		}
1884
1885		if (needs & MAIN_DEFAULT) {
1886		writeDefault(out, cfg->primaryIndent, "=", cfg);
1887		needs &= ~MAIN_DEFAULT;
1888		}
1889
1890		i = 0;
1891		while ((entry = findEntryByIndex(cfg, i++))) {
1892		if (entry->skip)
1893		continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907		}
1908
1909		if (tmpOutName) {
1910		/* write userspace buffers */
1911		if (fflush(out))
1912		rc = 1;
1913
1914		/* purge the write-back cache with fsync() */
1915		if (fsync(fileno(out)))
1916		rc = 1;
1917
1918		if (fclose(out))
1919		rc = 1;
1920
1921		if (rc == 0 && rename(tmpOutName, outName)) {
1922		unlink(tmpOutName);
1923		rc = 1;
1924		}
1925
1926		/* fsync() the destination directory after rename */
1927		if (rc == 0) {
1928		int dirfd;
1929
1930		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1931		if (dirfd < 0)
1932		rc = 1;
1933		else if (fsync(dirfd))
1934		rc = 1;
1935
1936		if (dirfd >= 0)
1937		close(dirfd);
1938		}
1939
1940		if (rc == 1)
1941		fprintf(stderr,
1942		_("grubby: error flushing data: %m\n"));
1943		}
1944
1945		return rc;
1946		}
1947
1948		static int numEntries(struct grubConfig *cfg)
1949		{
1950		int i = 0;
1951		struct singleEntry *entry;
1952
1953		entry = cfg->entries;
1954		while (entry) {
1955		if (!entry->skip)
1956		i++;
1957		entry = entry->next;
1958		}
1959		return i;
1960		}
1961
1962		static char *findDiskForRoot()
1963		{
1964		int fd;
1965		char buf[65536];
1966		char *devname;
1967		char *chptr;
1968		int rc;
1969
1970		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971		fprintf(stderr, "grubby: failed to open %s: %s\n",
1972		_PATH_MOUNTED, strerror(errno));
1973		return NULL;
1974		}
1975
1976		rc = read(fd, buf, sizeof(buf) - 1);
1977		if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979		_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981		return NULL;
1982		}
1983		close(fd);
1984		buf[rc] = '\0';
1985		chptr = buf;
1986
1987		char *foundanswer = NULL;
1988
1989		while (chptr && chptr != buf + rc) {
1990		devname = chptr;
1991
1992		/*
1993		* The first column of a mtab entry is the device, but if the
1994		* entry is a special device it won't start with /, so move
1995		* on to the next line.
1996		*/
1997		if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004		/* Seek to the next space */
2005		chptr = strchr(chptr, ' ');
2006		if (!chptr) {
2007		fprintf(stderr, "grubby: error parsing %s: %s\n",
2008		_PATH_MOUNTED, strerror(errno));
2009		return NULL;
2010		}
2011
2012		/*
2013		* The second column of a mtab entry is the mount point, we
2014		* are looking for '/' obviously.
2015		*/
2016		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2017		/* remember the last / entry in mtab */
2018		foundanswer = devname;
2019		}
2020
2021		/* Next line */
2022		chptr = strchr(chptr, '\n');
2023		if (chptr)
2024		chptr++;
2025		}
2026
2027		/* Return the last / entry found */
2028		if (foundanswer) {
2029		chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032		}
2033
2034		return NULL;
2035		}
2036
2037		void printEntry(struct singleEntry *entry, FILE * f)
2038		{
2039		int i;
2040		struct singleLine *line;
2041
2042		for (line = entry->lines; line; line = line->next) {
2043		log_message(f, "DBG: %s", line->indent);
2044		for (i = 0; i < line->numElements; i++) {
2045		/* Need to handle this, because we strip the quotes from
2046		* menuentry when read it. */
2047		if (line->type == LT_MENUENTRY && i == 1) {
2048		if (!isquote(*line->elements[i].item))
2049		log_message(f, "\'%s\'",
2050		line->elements[i].item);
2051		else
2052		log_message(f, "%s",
2053		line->elements[i].item);
2054		log_message(f, "%s", line->elements[i].indent);
2055
2056		continue;
2057		}
2058
2059		log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064	}	}
	fprintf(stderr, "\n");
	}
2065	}	}
2066
2067	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069	{	{
2070	va_list argp;	static int once;
2071		va_list argp, argq;
2072
2073	if (!debug)	va_start(argp, fmt);
	return;
2074
2075	va_start(argp, fmt);	va_copy(argq, argp);
2076	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2077	vfprintf(stderr, fmt, argp);	log_time(NULL);
2078	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2079	va_end(argp);	}
2080		log_message(NULL, "DBG: Image entry %s: ",
2081		okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
2083
2084		printEntry(entry, NULL);
2085		va_end(argq);
2086
2087		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093		if (okay) {
2094		va_end(argp);
2095		return;
2096		}
2097
2098		if (!once)
2099		log_message(stderr, "DBG: command line: %s\n",
2100		saved_command_line);
2101		once = 1;
2102		fprintf(stderr, "DBG: Image entry failed: ");
2103		vfprintf(stderr, fmt, argp);
2104		printEntry(entry, stderr);
2105		va_end(argp);
2106	}	}
2107
2108	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1471  static int endswith(const char *s, char	Line 2118  static int endswith(const char *s, char
2118	return s[slen] == c;	return s[slen] == c;
2119	}	}
2120
2121	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	int skipRemoved, int flags) {	int skipRemoved, int flags)
2123	struct singleLine * line;	{
2124	char * fullName;	struct singleLine *line;
2125	int i;	char *fullName;
2126	char * dev;	int i;
2127	char * rootspec;	char *dev;
2128	char * rootdev;	size_t rs;
2129		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2130
2131	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2132	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2133	notSuitablePrintf(entry, "no line found\n");	return 0;
2134	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2135
2136	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2137		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138		entry->lines);
2139		if (!line) {
2140		notSuitablePrintf(entry, 0, "no line found\n");
2141		return 0;
2142		}
2143		if (line->numElements < 2) {
2144		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145		line->numElements);
2146		return 0;
2147		}
2148
2149	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2150	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2151	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2152	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "access to %s failed\n", fullName);
	return 0;
	}
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
2153
2154	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2155	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2156		rs = getRootSpecifier(line->elements[1].item);
2157		int hasslash = endswith(bootPrefix, '/') ||
2158		beginswith(line->elements[1].item + rs, '/');
2159		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2160		line->elements[1].item + rs);
2161		if (access(fullName, R_OK)) {
2162		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2163		return 0;
2164		}
2165		for (i = 2; i < line->numElements; i++)
2166		if (!strncasecmp(line->elements[i].item, "root=", 5))
2167		break;
2168		if (i < line->numElements) {
2169		dev = line->elements[i].item + 5;
2170	} else {	} else {
2171	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2172	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2173	*/
2174	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2175		dev = line->elements[1].item;
2176	/* failed to find one */	} else {
2177	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2178	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2179	return 0;	* for the args, so check that too.
2180	}	*/
2181		line =
2182	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2183	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2184	if (i < line->numElements)
2185	dev = line->elements[i].item + 5;	/* failed to find one */
2186	else {	if (!line) {
2187	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2188	/* it failed too...  can't find root= */	return 0;
2189	return 0;	}
2190	}
2191		for (i = 1; i < line->numElements; i++)
2192		if (!strncasecmp
2193		(line->elements[i].item, "root=", 5))
2194		break;
2195		if (i < line->numElements)
2196		dev = line->elements[i].item + 5;
2197		else {
2198		notSuitablePrintf(entry, 0,
2199		"no root= entry found\n");
2200		/* it failed too...  can't find root= */
2201		return 0;
2202		}
2203		}
2204	}	}
	}
2205
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2206	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2207		if (!getpathbyspec(dev)) {
2208		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2209		dev);
2210		return 0;
2211		} else
2212		dev = getpathbyspec(dev);
2213
2214	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2215	if (!rootdev) {	if (!rootdev) {
2216	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2217	return 0;	return 0;
2218	}	}
2219
2220	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2221	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2222	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2223	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2224	return 0;	free(rootdev);
2225	}	return 0;
2226		}
2227
2228	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2229	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2230	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2231	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2232	return 0;	free(rootdev);
2233	}	return 0;
2234		}
2235
2236	free(rootdev);	free(rootdev);
2237		notSuitablePrintf(entry, 1, "\n");
2238
2239	return 1;	return 1;
2240	}	}
2241
2242	/* 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
2243	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2244	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2245	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2246	int * index) {	int *index)
2247	struct singleEntry * entry = NULL;	{
2248	struct singleLine * line;	struct singleEntry *entry = NULL;
2249	int i;	struct singleLine *line;
2250	char * chptr;	int i;
2251	char * rootspec = NULL;	char *chptr;
2252	enum lineType_e checkType = LT_KERNEL;	enum lineType_e checkType = LT_KERNEL;
2253
2254	if (isdigit(*kernel)) {	if (isdigit(*kernel)) {
2255	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2256
2257	i = 0;	i = 0;
2258	indexVars[i] = strtol(kernel, &chptr, 10);	indexVars[i] = strtol(kernel, &chptr, 10);
2259	while (*chptr == ',') {	while (*chptr == ',') {
2260	i++;	i++;
2261	kernel = chptr + 1;	kernel = chptr + 1;
2262	indexVars[i] = strtol(kernel, &chptr, 10);	indexVars[i] = strtol(kernel, &chptr, 10);
2263	}	}
2264
2265	if (*chptr) {	if (*chptr) {
2266	/* can't parse it, bail */	/* can't parse it, bail */
2267	return NULL;	return NULL;
2268	}	}
2269
2270	indexVars[i + 1] = -1;	indexVars[i + 1] = -1;
	i = 0;
	if (index) {
	while (i < *index) i++;
	if (indexVars[i] == -1) return NULL;
	}
2271
2272	entry = findEntryByIndex(config, indexVars[i]);	i = 0;
2273	if (!entry) return NULL;	if (index) {
2274		while (i < *index) {
2275		i++;
2276		if (indexVars[i] == -1)
2277		return NULL;
2278		}
2279		}
2280
2281	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	entry = findEntryByIndex(config, indexVars[i]);
2282	if (!line) return NULL;	if (!entry)
2283		return NULL;
2284
2285		line =
2286		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2287		LT_KERNEL_16, entry->lines);
2288		if (!line)
2289		return NULL;
2290
2291		if (index)
2292		*index = indexVars[i];
2293		return entry;
2294		}
2295
2296		if (!strcmp(kernel, "DEFAULT")) {
2297		if (index && *index > config->defaultImage) {
2298		entry = NULL;
2299		} else {
2300		entry = findEntryByIndex(config, config->defaultImage);
2301		if (entry && entry->skip)
2302		entry = NULL;
2303		else if (index)
2304		*index = config->defaultImage;
2305		}
2306		} else if (!strcmp(kernel, "ALL")) {
2307		if (index)
2308		i = *index;
2309		else
2310		i = 0;
2311
2312		while ((entry = findEntryByIndex(config, i))) {
2313		if (!entry->skip)
2314		break;
2315		i++;
2316		}
2317
2318	if (index) *index = indexVars[i];	if (entry && index)
2319	return entry;	*index = i;
2320	}	} else {
2321		if (index)
2322	if (!strcmp(kernel, "DEFAULT")) {	i = *index;
2323	if (index && *index > config->defaultImage) {	else
2324	entry = NULL;	i = 0;
2325	} else {
2326	entry = findEntryByIndex(config, config->defaultImage);	if (!strncmp(kernel, "TITLE=", 6)) {
2327	if (entry && entry->skip)	prefix = "";
2328	entry = NULL;	checkType = LT_TITLE | LT_MENUENTRY;
2329	else if (index)	kernel += 6;
2330	*index = config->defaultImage;	}
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2331
2332	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2333	if (!entry->skip) break;	entry = entry->next, i++) {
2334	i++;	if (entry->skip)
2335	}	continue;
2336
2337		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2338		checkType, kernel, entry);
2339
2340		/* check all the lines matching checkType */
2341		for (line = entry->lines; line; line = line->next) {
2342		enum lineType_e ct = checkType;
2343		if (entry->multiboot && checkType == LT_KERNEL)
2344		ct = LT_KERNEL | LT_KERNEL_EFI |
2345		LT_MBMODULE | LT_HYPER |
2346		LT_KERNEL_16;
2347		else if (checkType & LT_KERNEL)
2348		ct = checkType | LT_KERNEL_EFI |
2349		LT_KERNEL_16;
2350		line = getLineByType(ct, line);
2351		if (!line)
2352		break; /* not found in this entry */
2353
2354		if (line && line->type != LT_MENUENTRY &&
2355		line->numElements >= 2) {
2356		if (!strcmp(line->elements[1].item +
2357		getRootSpecifier(
2358		line->elements[1].item),
2359		kernel + strlen(prefix)))
2360		break;
2361		}
2362		if (line->type == LT_MENUENTRY &&
2363		!strcmp(line->elements[1].item, kernel))
2364		break;
2365		}
2366
2367	if (entry && index)	/* make sure this entry has a kernel identifier; this skips
2368	*index = i;	* non-Linux boot entries (could find netbsd etc, though, which is
2369	} else {	* unfortunate)
2370	if (index)	*/
2371	i = *index;	if (line
2372	else	&& getLineByType(LT_KERNEL | LT_HYPER |
2373	i = 0;	LT_KERNEL_EFI | LT_KERNEL_16,
2374		entry->lines))
2375		break; /* found 'im! */
2376		}
2377
2378	if (!strncmp(kernel, "TITLE=", 6)) {	if (index)
2379	prefix = "";	*index = i;
	checkType = LT_TITLE;
	kernel += 6;
2380	}	}
2381
2382	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	return entry;
2383	if (entry->skip) continue;	}
	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);
	/* check all the lines matching checkType */
	for (line = entry->lines; line; line = line->next) {
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
2384
2385	if (line && line->numElements >= 2) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2386	rootspec = getRootSpecifier(line->elements[1].item);	int *index)
2387	if (!strcmp(line->elements[1].item +	{
2388	((rootspec != NULL) ? strlen(rootspec) : 0),	struct singleEntry *entry;
2389	kernel + strlen(prefix)))	struct singleLine *line;
2390		int i;
2391		char *newtitle;
2392
2393		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2394		if (index && i < *index)
2395		continue;
2396		line = getLineByType(LT_TITLE, entry->lines);
2397		if (!line)
2398		line = getLineByType(LT_MENUENTRY, entry->lines);
2399		if (!line)
2400		continue;
2401		newtitle = grub2ExtractTitle(line);
2402		if (!newtitle)
2403		continue;
2404		if (!strcmp(title, newtitle))
2405	break;	break;
	}
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2406	}	}
2407
2408	if (index) *index = i;	if (!entry)
2409	}	return NULL;
2410
2411	return entry;	if (index)
2412		*index = i;
2413		return entry;
2414	}	}
2415
2416	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2417	struct singleEntry * entry;	{
2418		struct singleEntry *entry;
2419
2420	entry = cfg->entries;	entry = cfg->entries;
2421	while (index && entry) {	while (index && entry) {
2422	entry = entry->next;	entry = entry->next;
2423	index--;	index--;
2424	}	}
2425
2426	return entry;	return entry;
2427	}	}
2428
2429	/* 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 1709  struct singleEntry * findEntryByIndex(st	Line 2431  struct singleEntry * findEntryByIndex(st
2431	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2432	* 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,
2433	* bail. */	* bail. */
2434	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2435	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2436	struct singleEntry * entry, * entry2;	{
2437	int index;	struct singleEntry *entry, *entry2;
2438		int index;
2439	if (cfg->defaultImage > -1) {
2440	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2441	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2442	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2443	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2444		if (defTitle) {
2445		int index = 0;
2446		if (isnumber(defTitle)) {
2447		index = atoi(defTitle);
2448		entry = findEntryByIndex(cfg, index);
2449		} else {
2450		entry =
2451		findEntryByTitle(cfg, defTitle,
2452		&index);
2453		}
2454		if (entry
2455		&& suitableImage(entry, prefix, skipRemoved,
2456		flags)) {
2457		cfg->defaultImage = index;
2458		if (indexPtr)
2459		*indexPtr = index;
2460		return entry;
2461		}
2462		}
2463		}
2464		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2465		entry = findEntryByIndex(cfg, cfg->defaultImage);
2466		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2467		if (indexPtr)
2468		*indexPtr = cfg->defaultImage;
2469		return entry;
2470		}
2471	}	}
	}
2472
2473	index = 0;	index = 0;
2474	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2475	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2476	int j;	int j, unmodifiedIndex;
2477	for (j = 0; j < index; j++) {
2478	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2479	if (entry2->skip) index--;
2480	}	for (j = 0; j < unmodifiedIndex; j++) {
2481	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2482		if (entry2->skip)
2483		index--;
2484		}
2485		if (indexPtr)
2486		*indexPtr = index;
2487
2488	return entry;	return entry;
2489	}	}
2490
2491	index++;	index++;
2492	}	}
2493
2494	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2495		_("grubby fatal error: unable to find a suitable template\n"));
2496
2497	return NULL;	return NULL;
2498	}	}
2499
2500	char * findBootPrefix(void) {	char *findBootPrefix(void)
2501	struct stat sb, sb2;	{
2502		struct stat sb, sb2;
2503
2504	stat("/", &sb);	stat("/", &sb);
2505	#ifdef __ia64__	#ifdef __ia64__
2506	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2507	#else	#else
2508	stat("/boot", &sb2);	stat("/boot", &sb2);
2509	#endif	#endif
2510
2511	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2512	return strdup("");	return strdup("");
2513
2514	#ifdef __ia64__	#ifdef __ia64__
2515	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2516	#else	#else
2517	return strdup("/boot");	return strdup("/boot");
2518	#endif	#endif
2519	}	}
2520
2521	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2522	const char * prefix) {	const char *prefix)
2523	struct singleEntry * entry;	{
2524		struct singleEntry *entry;
	if (!image) return;
	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
	entry->skip = 1;
	}
	void setDefaultImage(struct grubConfig * config, int hasNew,
	const char * defaultKernelPath, int newIsDefault,
	const char * prefix, int flags) {
	struct singleEntry * entry, * entry2, * newDefault;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(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;
2525
2526	if (entry && !entry->skip) {	if (!image)
2527	/* we can preserve the default */	return;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
	}
2528
2529	void setFallbackImage(struct grubConfig * config, int hasNew) {	/* check and see if we're removing the default image */
2530	struct singleEntry * entry, * entry2;	if (isdigit(*image)) {
2531	int j;	entry = findEntryByPath(cfg, image, prefix, NULL);
2532		if (entry)
2533	if (config->fallbackImage == -1) return;	entry->skip = 1;
2534		return;
2535	entry = findEntryByIndex(config, config->fallbackImage);	}
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2536
2537	if (hasNew)	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2538	config->fallbackImage++;	entry->skip = 1;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
2539	}	}
2540
2541	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2542	struct singleLine * line;	const char *defaultKernelPath, int newBootEntryIsDefault,
2543	char * root = NULL;	const char *prefix, int flags,
2544	int i;	int newDefaultBootEntryIndex, int newBootEntryIndex)
2545		{
2546	printf("index=%d\n", index);	struct singleEntry *bootEntry, *newDefault;
2547		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2548
2549	printf("kernel=%s%s\n", prefix, line->elements[1].item);	/* initialize */
2550		currentLookupIndex = FIRST_ENTRY_INDEX;
2551
2552	if (line->numElements >= 3) {	/* handle the two cases where the user explictly picks the default
2553	printf("args=\"");	* boot entry index as it would exist post-modification */
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2554
2555	i++;	/* Case 1: user chose to make the latest boot entry the default */
2556		if (newBootEntryIsDefault) {
2557		config->defaultImage = newBootEntryIndex;
2558		return;
2559	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2560
2561	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2562	i = 1;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2563	while (i < line->numElements) {	indexToVerify = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2564
2565	printf("%s%s", s, line->elements[i].indent);	/* user chose to make latest boot entry the default */
2566		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2567		config->defaultImage = newBootEntryIndex;
2568		return;
2569	}	}
2570
2571	i++;	/* the user picks the default index based on the
2572	}	* order of the bootloader configuration after
2573		* modification; ensure we are checking for the
2574		* existence of the correct entry */
2575		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2576		if (!config->isModified)
2577		indexToVerify--;
2578		}
2579
2580		/* verify the user selected index will exist */
2581		if (findEntryByIndex(config, indexToVerify)) {
2582		config->defaultImage = newDefaultBootEntryIndex;
2583		} else {
2584		config->defaultImage = NO_DEFAULT_ENTRY;
2585		}
2586
2587	s = line->elements[i - 1].indent;	return;
	printf("\"\n");
2588	}	}
	}
2589
2590	if (!root) {	/* handle cases where the index value may shift */
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2591
2592	if (root) {	/* check validity of existing default or first-entry-found
2593	char * s = alloca(strlen(root) + 1);	selection */
2594		if (defaultKernelPath) {
2595	strcpy(s, root);	/* we must initialize this */
2596	if (s[strlen(s) - 1] == '"')	firstKernelEntryIndex = 0;
2597	s[strlen(s) - 1] = '\0';	/* user requested first-entry-found */
2598	/* make sure the root doesn't have a trailing " */	if (!findEntryByPath(config, defaultKernelPath,
2599	printf("root=%s\n", s);	prefix, &firstKernelEntryIndex)) {
2600	}	/* don't change default if can't find match */
2601		config->defaultImage = NO_DEFAULT_ENTRY;
2602		return;
2603		}
2604
2605	line = getLineByType(LT_INITRD, entry->lines);	config->defaultImage = firstKernelEntryIndex;
2606
2607	if (line && line->numElements >= 2) {	/* this is where we start looking for decrement later */
2608	printf("initrd=%s", prefix);	currentLookupIndex = config->defaultImage;
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2609
2610	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2611	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2612	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2613	} else {	config->defaultImage++;
2614	char * title;	}
2615	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2616	title = grub2ExtractTitle(line);	/* check to see if the default is stored in the environment */
2617	if (title)	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2618	printf("title=%s\n", title);	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2619	}	{
2620	}	if (config->cfi->defaultIsSaved) {
2621		if (config->cfi->getEnv) {
2622		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2623
2624		if (defaultTitle) {
2625		if (isnumber(defaultTitle)) {
2626		currentLookupIndex = atoi(defaultTitle);
2627		} else {
2628		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2629		}
2630		/* set the default Image to an actual index */
2631		config->defaultImage = currentLookupIndex;
2632		}
2633		}
2634		}
2635		}
2636		} else {
2637		/* use pre-existing default entry from the file*/
2638		currentLookupIndex = config->defaultImage;
2639		}
2640
2641	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	if (isAddingBootEntry
2642	FILE * in;	&& (newBootEntryIndex <= config->defaultImage)) {
2643	char buf[1024];	config->defaultImage++;
	char * chptr;
	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);
	}
2644
2645	fclose(in);	if (config->isModified) {
2646		currentLookupIndex++;
2647		}
2648		}
2649		}
2650
2651	return 0;	/* sanity check - is this entry index valid? */
2652	}	bootEntry = findEntryByIndex(config, currentLookupIndex);
2653
2654	void dumpSysconfigGrub(void) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2655	char * boot;	/* entry is to be skipped or is invalid */
2656	int lba;	if (isAddingBootEntry) {
2657		config->defaultImage = newBootEntryIndex;
2658	if (!parseSysconfigGrub(&lba, &boot)) {	return;
2659	if (lba) printf("lba\n");	}
2660	if (boot) printf("boot=%s\n", boot);	newDefault =
2661	}	findTemplate(config, prefix, &config->defaultImage, 1,
2662	}	flags);
2663		if (!newDefault) {
2664		config->defaultImage = NO_DEFAULT_ENTRY;
2665		}
2666
2667	int displayInfo(struct grubConfig * config, char * kernel,	return;
2668	const char * prefix) {	}
2669	int i = 0;
2670	struct singleEntry * entry;	currentLookupIndex--;
2671	struct singleLine * line;
2672		/* decrement index by the total number of entries deleted */
2673	entry = findEntryByPath(config, kernel, prefix, &i);
2674	if (!entry) {	for (indexToVerify = currentLookupIndex;
2675	fprintf(stderr, _("grubby: kernel not found\n"));	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	return 1;
	}
2676
2677	/* this is a horrible hack to support /etc/conf.d/grub; there must	bootEntry = findEntryByIndex(config, indexToVerify);
2678	be a better way */
2679	if (config->cfi == &grubConfigType) {	if (bootEntry && bootEntry->skip) {
2680	dumpSysconfigGrub();	config->defaultImage--;
2681	} else {	}
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
2682	}	}
2683		}
2684
2685	line = getLineByType(LT_LBA, config->theLines);	void setFallbackImage(struct grubConfig *config, int hasNew)
2686	if (line) printf("lba\n");	{
2687	}	struct singleEntry *entry, *entry2;
2688		int j;
2689
2690	displayEntry(entry, prefix, i);	if (config->fallbackImage == -1)
2691		return;
2692
2693	i++;	entry = findEntryByIndex(config, config->fallbackImage);
2694	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	if (!entry || entry->skip) {
2695	displayEntry(entry, prefix, i);	config->fallbackImage = -1;
2696	i++;	return;
2697	}	}
2698
2699	return 0;	if (hasNew)
2700		config->fallbackImage++;
2701
2702		/* count the number of entries erased before this one */
2703		for (j = 0; j < config->fallbackImage; j++) {
2704		entry2 = findEntryByIndex(config, j);
2705		if (entry2->skip)
2706		config->fallbackImage--;
2707		}
2708	}	}
2709
2710	struct singleLine * addLineTmpl(struct singleEntry * entry,	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2711	struct singleLine * tmplLine,	{
2712	struct singleLine * prevLine,	struct singleLine *line;
2713	const char * val,	char *root = NULL;
2714	struct configFileInfo * cfi)	int i;
2715	{	int j;
2716	struct singleLine * newLine = lineDup(tmplLine);
2717		printf("index=%d\n", index);
2718	if (val) {
2719	/* override the inherited value with our own.	line =
2720	* This is a little weak because it only applies to elements[1]	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2721	*/	entry->lines);
2722	if (newLine->numElements > 1)	if (!line) {
2723	removeElement(newLine, 1);	printf("non linux entry\n");
2724	insertElement(newLine, val, 1, cfi);	return;
	/* 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);
	}
2725	}	}
	}
2726
2727	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2728	newLine->elements[0].item : "");	printf("kernel=%s\n", line->elements[1].item);
2729		else
2730		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2731
2732	if (!entry->lines) {	if (line->numElements >= 3) {
2733	/* first one on the list */	printf("args=\"");
2734	entry->lines = newLine;	i = 2;
2735	} else if (prevLine) {	while (i < line->numElements) {
2736	/* add after prevLine */	if (!strncmp(line->elements[i].item, "root=", 5)) {
2737	newLine->next = prevLine->next;	root = line->elements[i].item + 5;
2738	prevLine->next = newLine;	} else {
2739	}	printf("%s%s", line->elements[i].item,
2740		line->elements[i].indent);
2741		}
2742
2743	return newLine;	i++;
2744	}	}
2745		printf("\"\n");
2746		} else {
2747		line = getLineByType(LT_KERNELARGS, entry->lines);
2748		if (line) {
2749		char *s;
2750
2751		printf("args=\"");
2752		i = 1;
2753		while (i < line->numElements) {
2754		if (!strncmp
2755		(line->elements[i].item, "root=", 5)) {
2756		root = line->elements[i].item + 5;
2757		} else {
2758		s = line->elements[i].item;
2759
2760	/* val may be NULL */	printf("%s%s", s,
2761	struct singleLine *  addLine(struct singleEntry * entry,	line->elements[i].indent);
2762	struct configFileInfo * cfi,	}
2763	enum lineType_e type, char * defaultIndent,
2764	const char * val) {	i++;
2765	struct singleLine * line, * prev;	}
2766	struct keywordTypes * kw;
2767	struct singleLine tmpl;	s = line->elements[i - 1].indent;
2768		printf("\"\n");
2769	/* 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 = "";
2770	}	}
	}
2771
2772	/* The last non-empty line gives us the indention to us and the line	if (!root) {
2773	to insert after. Note that comments are considered empty lines, which	line = getLineByType(LT_ROOT, entry->lines);
2774	may not be ideal? If there are no lines or we are looking at the	if (line && line->numElements >= 2)
2775	first line, we use defaultIndent (the first line is normally indented	root = line->elements[1].item;
2776	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;
	}
2777
2778	struct singleLine *menuEntry;	if (root) {
2779	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	char *s = alloca(strlen(root) + 1);
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
2780
2781	return addLineTmpl(entry, &tmpl, prev, val, cfi);	strcpy(s, root);
2782	}	if (s[strlen(s) - 1] == '"')
2783		s[strlen(s) - 1] = '\0';
2784		/* make sure the root doesn't have a trailing " */
2785		printf("root=%s\n", s);
2786		}
2787
2788	void removeLine(struct singleEntry * entry, struct singleLine * line) {	line =
2789	struct singleLine * prev;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2790	int i;	entry->lines);
2791
2792	for (i = 0; i < line->numElements; i++) {	if (line && line->numElements >= 2) {
2793	free(line->elements[i].item);	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2794	free(line->elements[i].indent);	printf("initrd=");
2795	}	else
2796	free(line->elements);	printf("initrd=%s", prefix);
	free(line->indent);
2797
2798	if (line == entry->lines) {	for (i = 1; i < line->numElements; i++)
2799	entry->lines = line->next;	printf("%s%s", line->elements[i].item,
2800	} else {	line->elements[i].indent);
2801	prev = entry->lines;	printf("\n");
2802	while (prev->next != line) prev = prev->next;	}
2803	prev->next = line->next;
2804	}	line = getLineByType(LT_TITLE, entry->lines);
2805		if (line) {
2806		char *entryTitle;
2807		/* if we can extractTitle, then it's a zipl config and
2808		* if not then we go ahead with what's existed prior */
2809		entryTitle = extractTitle(config, line);
2810		if (!entryTitle) {
2811		entryTitle=line->elements[1].item;
2812		}
2813		printf("title=%s\n", entryTitle);
2814		} else {
2815		char *title;
2816		line = getLineByType(LT_MENUENTRY, entry->lines);
2817		if (line) {
2818		title = grub2ExtractTitle(line);
2819		if (title)
2820		printf("title=%s\n", title);
2821		}
2822		}
2823
2824	free(line);	for (j = 0, line = entry->lines; line; line = line->next) {
2825		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2826		if (!strncmp
2827		(prefix, line->elements[1].item, strlen(prefix)))
2828		printf("mbmodule%d=", j);
2829		else
2830		printf("mbmodule%d=%s", j, prefix);
2831
2832		for (i = 1; i < line->numElements; i++)
2833		printf("%s%s", line->elements[i].item,
2834		line->elements[i].indent);
2835		printf("\n");
2836		j++;
2837		}
2838		}
2839	}	}
2840
2841	static int isquote(char q)	int isSuseSystem(void)
2842	{	{
2843	if (q == '\'' || q == '\"')	const char *path;
2844	return 1;	const static char default_path[] = "/etc/SuSE-release";
2845	return 0;
2846		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2847		path = default_path;
2848
2849		if (!access(path, R_OK))
2850		return 1;
2851		return 0;
2852	}	}
2853
2854	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	int isSuseGrubConf(const char *path)
2855	{	{
2856	struct singleLine newLine = {	FILE *grubConf;
2857	.indent = tmplLine->indent,	char *line = NULL;
2858	.type = tmplLine->type,	size_t len = 0, res = 0;
2859	.next = tmplLine->next,
2860	};	grubConf = fopen(path, "r");
2861	int firstQuotedItem = -1;	if (!grubConf) {
2862	int quoteLen = 0;	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2863	int j;	path);
2864	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;
	}
2865	}	}
	}
	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] = ' ';
	}
2866
2867	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	while ((res = getline(&line, &len, grubConf)) != -1) {
2868	/* move the end-of-line forward */	if (!strncmp(line, "setup", 5)) {
2869	line->elements[insertHere].indent =	fclose(grubConf);
2870	line->elements[insertHere-1].indent;	free(line);
2871	line->elements[insertHere-1].indent = strdup(indent);	return 1;
2872	} else {	}
2873	line->elements[insertHere].indent = strdup(indent);	}
	}
2874
2875	line->numElements++;	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2876		path);
2877
2878	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	fclose(grubConf);
2879	line->elements[0].item,	free(line);
2880	line->elements[insertHere].item,	return 0;
	line->elements[insertHere].indent,
	insertHere);
2881	}	}
2882
2883	static void removeElement(struct singleLine * line, int removeHere) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2884	int i;	{
2885		FILE *grubConf;
2886	/* sanity check */	char *line = NULL;
2887	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);
2888
2889	free(line->elements[removeHere].item);	if (!path)
2890		return 1;
2891		if (!lbaPtr)
2892		return 1;
2893
2894	if (removeHere > 1) {	grubConf = fopen(path, "r");
2895	/* previous argument gets this argument's post-indentation */	if (!grubConf)
2896	free(line->elements[removeHere-1].indent);	return 1;
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2897
2898	/* now collapse the array, but don't bother to realloc smaller */	while ((res = getline(&line, &len, grubConf)) != -1) {
2899	for (i = removeHere; i < line->numElements - 1; i++)	if (line[res - 1] == '\n')
2900	line->elements[i] = line->elements[i + 1];	line[res - 1] = '\0';
2901		else if (len > res)
2902	line->numElements--;	line[res] = '\0';
2903	}	else {
2904		line = realloc(line, res + 1);
2905	int argMatch(const char * one, const char * two) {	line[res] = '\0';
2906	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;
	}
	}
2907
2908	if (!removeArgs) {	if (!strncmp(line, "setup", 5)) {
2909	oldArgs = malloc(sizeof(*oldArgs));	if (strstr(line, "--force-lba")) {
2910	*oldArgs = NULL;	*lbaPtr = 1;
2911	} else {	} else {
2912	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	*lbaPtr = 0;
2913	fprintf(stderr,	}
2914	_("grubby: error separating arguments '%s'\n"), removeArgs);	dbgPrintf("lba: %i\n", *lbaPtr);
2915	free(newArgs);	break;
2916	return 1;	}
2917	}	}
	}
2918
2919		free(line);
2920		fclose(grubConf);
2921		return 0;
2922		}
2923
2924	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2925	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	{
2926		FILE *grubConf;
2927		char *line = NULL;
2928		size_t res = 0, len = 0;
2929		char *lastParamPtr = NULL;
2930		char *secLastParamPtr = NULL;
2931		char installDeviceNumber = '\0';
2932		char *bounds = NULL;
2933
2934	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	if (!path)
2935	&& !multibootArgs);	return 1;
2936		if (!devicePtr)
2937		return 1;
2938
2939	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	grubConf = fopen(path, "r");
2940		if (!grubConf)
2941		return 1;
2942
2943	if (multibootArgs && !entry->multiboot)	while ((res = getline(&line, &len, grubConf)) != -1) {
2944	continue;	if (strncmp(line, "setup", 5))
2945		continue;
2946
2947		if (line[res - 1] == '\n')
2948		line[res - 1] = '\0';
2949		else if (len > res)
2950		line[res] = '\0';
2951		else {
2952		line = realloc(line, res + 1);
2953		line[res] = '\0';
2954		}
2955
2956	/* 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;
	}
2957
2958	/* handle the elilo case which does:	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2959	*   append="hypervisor args -- kernel args"	while (!isspace(*lastParamPtr))
2960	*/	lastParamPtr--;
2961	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	lastParamPtr++;
2962	/* this is a multiboot entry, make sure there's
2963	* -- on the args line	secLastParamPtr = lastParamPtr - 2;
2964	*/	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2965	for (i = firstElement; i < line->numElements; i++) {
2966	if (!strcmp(line->elements[i].item, "--"))	if (lastParamPtr + 3 > bounds) {
2967	break;	dbgPrintf("lastParamPtr going over boundary");
2968	}	fclose(grubConf);
2969	if (i == line->numElements) {	free(line);
2970	/* assume all existing args are kernel args,	return 1;
2971	* prepend -- to make it official	}
2972		if (!strncmp(lastParamPtr, "(hd", 3))
2973		lastParamPtr += 3;
2974		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2975
2976		/*
2977		* Second last parameter will decide wether last parameter is
2978		* an IMAGE_DEVICE or INSTALL_DEVICE
2979	*/	*/
2980	insertElement(line, "--", firstElement, cfg->cfi);	while (!isspace(*secLastParamPtr))
2981	i = firstElement;	secLastParamPtr--;
2982	}	secLastParamPtr++;
2983	if (!multibootArgs) {
2984	/* kernel args start after the -- */	if (secLastParamPtr + 3 > bounds) {
2985	firstElement = i + 1;	dbgPrintf("secLastParamPtr going over boundary");
2986	}	fclose(grubConf);
2987	} else if (cfg->cfi->mbConcatArgs) {	free(line);
2988	/* this is a non-multiboot entry, remove hyper args */	return 1;
2989	for (i = firstElement; i < line->numElements; i++) {	}
2990	if (!strcmp(line->elements[i].item, "--"))	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2991	break;	if (!strncmp(secLastParamPtr, "(hd", 3)) {
2992	}	secLastParamPtr += 3;
2993	if (i < line->numElements) {	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2994	/* 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);
2995	} else {	} else {
2996	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	installDeviceNumber = *lastParamPtr;
	cfg->secondaryIndent, *arg + 5);
2997	}	}
	}
2998
2999	else {	*devicePtr = malloc(6);
3000	/* insert/append */	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3001	insertElement(line, *arg, i, cfg->cfi);	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3002	usedElements = realloc(usedElements, line->numElements *	fclose(grubConf);
3003	sizeof(*usedElements));	free(line);
3004	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);
3005	}	}
	}
3006
3007	free(newArgs);	free(line);
3008	free(oldArgs);	fclose(grubConf);
3009		return 1;
	return 0;
3010	}	}
3011
3012	int updateImage(struct grubConfig * cfg, const char * image,	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3013	const char * prefix, const char * addArgs,	{
3014	const char * removeArgs,	FILE *deviceMap;
3015	const char * addMBArgs, const char * removeMBArgs) {	char *line = NULL;
3016	int rc = 0;	size_t res = 0, len = 0;
3017		char *devicePtr;
3018	if (!image) return rc;	char *bounds = NULL;
3019		const char *path;
3020	/* update the main args first... */	const static char default_path[] = "/boot/grub/device.map";
3021	if (addArgs || removeArgs)
3022	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (!device)
3023	if (rc) return rc;	return 1;
3024		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)
3025	return 1;	return 1;
	}
3026
3027	break;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3028	}	path = default_path;
3029
3030	return 0;	dbgPrintf("opening grub device.map file from: %s\n", path);
3031	}	deviceMap = fopen(path, "r");
3032		if (!deviceMap)
3033		return 1;
3034
3035	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
3036	int fd;	if (!strncmp(line, "#", 1))
3037	unsigned char bootSect[512];	continue;
3038	int offset;
3039		if (line[res - 1] == '\n')
3040	fd = open(device, O_RDONLY);	line[res - 1] = '\0';
3041	if (fd < 0) {	else if (len > res)
3042	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	line[res] = '\0';
3043	device, strerror(errno));	else {
3044	return 1;	line = realloc(line, res + 1);
3045	}	line[res] = '\0';
3046		}
3047
3048	if (read(fd, bootSect, 512) != 512) {	devicePtr = line;
3049	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	bounds = line + res;
	device, strerror(errno));
	return 1;
	}
	close(fd);
3050
3051	/* first three bytes should match, a jmp short should be in there */	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3052	if (memcmp(boot, bootSect, 3))	devicePtr++;
3053	return 0;	dbgPrintf("device: %s\n", devicePtr);
3054
3055		if (!strncmp(devicePtr, device, strlen(device))) {
3056		devicePtr += strlen(device);
3057		while (isspace(*devicePtr)
3058		&& ((devicePtr + 1) <= bounds))
3059		devicePtr++;
3060
3061	if (boot[1] == JMP_SHORT_OPCODE) {	*bootPtr = strdup(devicePtr);
3062	offset = boot[2] + 2;	break;
3063	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	}
3064	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;
	}
3065
3066	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	free(line);
3067		fclose(deviceMap);
3068	return 0;	return 0;
	return 2;
3069	}	}
3070
3071	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3072	int fd;	{
3073	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 */
3074
3075	if (!strncmp(mdDev, "/dev/", 5))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3076	mdDev += 5;	dbgPrintf("error looking for grub installation device\n");
3077		else
3078		dbgPrintf("grubby installation device: %s\n", grubDevice);
3079
3080	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3081	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	dbgPrintf("error looking for grub boot device\n");
3082	strerror(errno));	else
3083	return 2;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	}
3084
3085	rc = read(fd, buf, sizeof(buf) - 1);	free(grubDevice);
3086	if (rc < 0 || rc == (sizeof(buf) - 1)) {	return 0;
3087	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	}
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3088
3089	chptr = buf;	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3090	while (*chptr) {	{
3091	end = strchr(chptr, '\n');	/*
3092	if (!end) break;	* This SuSE grub configuration file at this location is not your
3093	*end = '\0';	* average grub configuration file, but instead the grub commands
3094		* used to setup grub on that system.
3095		*/
3096		const char *path;
3097		const static char default_path[] = "/etc/grub.conf";
3098
3099	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3100	chptr[strlen(mdDev)] == ' ') {	path = default_path;
3101
3102	/* found the device */	if (!isSuseGrubConf(path))
3103	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++;
	}
3104
3105	/*  we're good to go */	if (lbaPtr) {
3106	return 2;	*lbaPtr = 0;
3107		if (suseGrubConfGetLba(path, lbaPtr))
3108		return 1;
3109	}	}
3110
3111	chptr = end + 1;	if (bootPtr) {
3112	}	*bootPtr = NULL;
3113		suseGrubConfGetBoot(path, bootPtr);
3114		}
3115
3116	fprintf(stderr,	return 0;
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3117	}	}
3118
3119	int checkForLilo(struct grubConfig * config) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3120	int fd;	{
3121	unsigned char boot[512];	FILE *in;
3122	struct singleLine * line;	char buf[1024];
3123		char *chptr;
3124	for (line = config->theLines; line; line = line->next)	char *start;
3125	if (line->type == LT_BOOT) break;	char *param;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3126
3127	if (line->numElements != 2) return 1;	in = fopen("/etc/sysconfig/grub", "r");
3128		if (!in)
3129		return 1;
3130
3131	fd = open("/boot/boot.b", O_RDONLY);	if (lbaPtr)
3132	if (fd < 0) {	*lbaPtr = 0;
3133	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	if (bootPtr)
3134	"/boot/boot.b", strerror(errno));	*bootPtr = NULL;
3135	return 1;
3136	}	while (fgets(buf, sizeof(buf), in)) {
3137		start = buf;
3138		while (isspace(*start))
3139		start++;
3140		if (*start == '#')
3141		continue;
3142
3143		chptr = strchr(start, '=');
3144		if (!chptr)
3145		continue;
3146		chptr--;
3147		while (*chptr && isspace(*chptr))
3148		chptr--;
3149		chptr++;
3150		*chptr = '\0';
3151
3152		param = chptr + 1;
3153		while (*param && isspace(*param))
3154		param++;
3155		if (*param == '=') {
3156		param++;
3157		while (*param && isspace(*param))
3158		param++;
3159		}
3160
3161	if (read(fd, boot, 512) != 512) {	chptr = param;
3162	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while (*chptr && !isspace(*chptr))
3163	"/boot/boot.b", strerror(errno));	chptr++;
3164	return 1;	*chptr = '\0';
3165	}
3166	close(fd);	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3167		*lbaPtr = 1;
3168		else if (!strcmp(start, "boot") && bootPtr)
3169		*bootPtr = strdup(param);
3170		}
3171
3172	if (!strncmp("/dev/md", line->elements[1].item, 7))	fclose(in);
	return checkLiloOnRaid(line->elements[1].item, boot);
3173
3174	return checkDeviceBootloader(line->elements[1].item, boot);	return 0;
3175	}	}
3176
3177	int checkForGrub2(struct grubConfig * config) {	void dumpSysconfigGrub(void)
3178	if (!access("/etc/grub.d/", R_OK))	{
3179	return 2;	char *boot = NULL;
3180		int lba;
3181
3182		if (isSuseSystem()) {
3183		if (parseSuseGrubConf(&lba, &boot)) {
3184		free(boot);
3185		return;
3186		}
3187		} else {
3188		if (parseSysconfigGrub(&lba, &boot)) {
3189		free(boot);
3190		return;
3191		}
3192		}
3193
3194	return 1;	if (lba)
3195		printf("lba\n");
3196		if (boot) {
3197		printf("boot=%s\n", boot);
3198		free(boot);
3199		}
3200	}	}
3201
3202	int checkForGrub(struct grubConfig * config) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3203	int fd;	{
3204	unsigned char bootSect[512];	int i = 0;
3205	char * boot;	struct singleEntry *entry;
3206		struct singleLine *line;
3207
3208		entry = findEntryByPath(config, kernel, prefix, &i);
3209		if (!entry) {
3210		fprintf(stderr, _("grubby: kernel not found\n"));
3211		return 1;
3212		}
3213
3214	if (parseSysconfigGrub(NULL, &boot))	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3215	return 0;	be a better way */
3216		if (config->cfi == &grubConfigType) {
3217		dumpSysconfigGrub();
3218		} else {
3219		line = getLineByType(LT_BOOT, config->theLines);
3220		if (line && line->numElements >= 1) {
3221		printf("boot=%s\n", line->elements[1].item);
3222		}
3223
3224	/* assume grub is not installed -- not an error condition */	line = getLineByType(LT_LBA, config->theLines);
3225	if (!boot)	if (line)
3226	return 0;	printf("lba\n");
3227		}
3228
3229	fd = open("/boot/grub/stage1", O_RDONLY);	displayEntry(config, entry, prefix, i);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3230
3231	if (read(fd, bootSect, 512) != 512) {	i++;
3232	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3233	"/boot/grub/stage1", strerror(errno));	displayEntry(config, entry, prefix, i);
3234	close(fd);	i++;
3235	return 1;	}
	}
	close(fd);
3236
3237	return checkDeviceBootloader(boot, bootSect);	return 0;
3238	}	}
3239
3240	int checkForExtLinux(struct grubConfig * config) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3241	int fd;	struct singleLine *tmplLine,
3242	unsigned char bootSect[512];	struct singleLine *prevLine,
3243	char * boot;	const char *val, struct configFileInfo *cfi)
3244	char executable[] = "/boot/extlinux/extlinux";	{
3245		struct singleLine *newLine = lineDup(tmplLine);
	printf("entered: checkForExtLinux()\n");
3246
3247	if (parseSysconfigGrub(NULL, &boot))	if (isEfi && cfi == &grub2ConfigType) {
3248	return 0;	enum lineType_e old = newLine->type;
3249		newLine->type = preferredLineType(newLine->type, cfi);
3250		if (old != newLine->type)
3251		newLine->elements[0].item =
3252		getKeyByType(newLine->type, cfi);
3253		}
3254
3255	/* assume grub is not installed -- not an error condition */	if (val) {
3256	if (!boot)	/* override the inherited value with our own.
3257	return 0;	* This is a little weak because it only applies to elements[1]
3258		*/
3259		if (newLine->numElements > 1)
3260		removeElement(newLine, 1);
3261		insertElement(newLine, val, 1, cfi);
3262
3263		/* but try to keep the rootspec from the template... sigh */
3264		if (tmplLine->
3265		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3266		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3267		LT_INITRD_16)) {
3268		size_t rs = getRootSpecifier(tmplLine->elements[1].item);
3269		if (rs > 0) {
3270		free(newLine->elements[1].item);
3271		newLine->elements[1].item = sdupprintf(
3272		"%.*s%s", (int) rs,
3273		tmplLine->elements[1].item, val);
3274		}
3275		}
3276		}
3277
3278	fd = open(executable, O_RDONLY);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3279	if (fd < 0)	newLine->elements[0].item : "");
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3280
3281	if (read(fd, bootSect, 512) != 512) {	if (!entry->lines) {
3282	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	/* first one on the list */
3283	executable, strerror(errno));	entry->lines = newLine;
3284	return 1;	} else if (prevLine) {
3285	}	/* add after prevLine */
3286	close(fd);	newLine->next = prevLine->next;
3287		prevLine->next = newLine;
3288		}
3289
3290	return checkDeviceBootloader(boot, bootSect);	return newLine;
3291	}	}
3292
3293	static char * getRootSpecifier(char * str) {	/* val may be NULL */
3294	char * idx, * rootspec = NULL;	struct singleLine *addLine(struct singleEntry *entry,
3295		struct configFileInfo *cfi,
3296		enum lineType_e type, char *defaultIndent,
3297		const char *val)
3298		{
3299		struct singleLine *line, *prev;
3300		struct keywordTypes *kw;
3301		struct singleLine tmpl;
3302
3303	if (*str == '(') {	/* NB: This function shouldn't allocate items on the heap, rather on
3304	idx = rootspec = strdup(str);	* the stack since it calls addLineTmpl which will make copies.
3305	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	*/
3306	*(++idx) = '\0';	if (type == LT_TITLE && cfi->titleBracketed) {
3307	}	/* we're doing a bracketed title (zipl) */
3308	return rootspec;	tmpl.type = type;
3309		tmpl.numElements = 1;
3310		tmpl.elements = alloca(sizeof(*tmpl.elements));
3311		tmpl.elements[0].item = alloca(strlen(val) + 3);
3312		sprintf(tmpl.elements[0].item, "[%s]", val);
3313		tmpl.elements[0].indent = "";
3314		val = NULL;
3315		} else if (type == LT_MENUENTRY) {
3316		char *lineend = "--class gnu-linux --class gnu --class os {";
3317		if (!val) {
3318		fprintf(stderr,
3319		"Line type LT_MENUENTRY requires a value\n");
3320		abort();
3321		}
3322		kw = getKeywordByType(type, cfi);
3323		if (!kw) {
3324		fprintf(stderr,
3325		"Looking up keyword for unknown type %d\n",
3326		type);
3327		abort();
3328		}
3329		tmpl.indent = "";
3330		tmpl.type = type;
3331		tmpl.numElements = 3;
3332		tmpl.elements =
3333		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3334		tmpl.elements[0].item = kw->key;
3335		tmpl.elements[0].indent = alloca(2);
3336		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3337		tmpl.elements[1].item = (char *)val;
3338		tmpl.elements[1].indent = alloca(2);
3339		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3340		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3341		strcpy(tmpl.elements[2].item, lineend);
3342		tmpl.elements[2].indent = "";
3343		} else {
3344		kw = getKeywordByType(type, cfi);
3345		if (!kw) {
3346		fprintf(stderr,
3347		"Looking up keyword for unknown type %d\n",
3348		type);
3349		abort();
3350		}
3351		tmpl.type = type;
3352		tmpl.numElements = val ? 2 : 1;
3353		tmpl.elements =
3354		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3355		tmpl.elements[0].item = kw->key;
3356		tmpl.elements[0].indent = alloca(2);
3357		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3358		if (val) {
3359		tmpl.elements[1].item = (char *)val;
3360		tmpl.elements[1].indent = "";
3361		}
3362		}
3363
3364		/* The last non-empty line gives us the indention to us and the line
3365		* to insert after. Note that comments are considered empty lines,
3366		* which may not be ideal? If there are no lines or we are looking at
3367		* the first line, we use defaultIndent (the first line is normally
3368		* indented differently from the rest) */
3369		for (line = entry->lines, prev = NULL; line; line = line->next) {
3370		if (line->numElements)
3371		prev = line;
3372		/* fall back on the last line if prev isn't otherwise set */
3373		if (!line->next && !prev)
3374		prev = line;
3375		}
3376
3377		struct singleLine *menuEntry;
3378		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3379		if (tmpl.type == LT_ENTRY_END) {
3380		if (menuEntry)
3381		tmpl.indent = menuEntry->indent;
3382		else
3383		tmpl.indent = defaultIndent ? : "";
3384		} else if (tmpl.type != LT_MENUENTRY) {
3385		if (menuEntry)
3386		tmpl.indent = "\t";
3387		else if (prev == entry->lines)
3388		tmpl.indent = defaultIndent ? : "";
3389		else
3390		tmpl.indent = prev->indent;
3391		}
3392
3393		return addLineTmpl(entry, &tmpl, prev, val, cfi);
3394	}	}
3395
3396	static char * getInitrdVal(struct grubConfig * config,	void removeLine(struct singleEntry *entry, struct singleLine *line)
3397	const char * prefix, struct singleLine *tmplLine,	{
3398	const char * newKernelInitrd,	struct singleLine *prev;
3399	char ** extraInitrds, int extraInitrdCount)	int i;
3400	{
3401	char *initrdVal, *end;	for (i = 0; i < line->numElements; i++) {
3402	int i;	free(line->elements[i].item);
3403	size_t totalSize;	free(line->elements[i].indent);
3404	size_t prefixLen;	}
3405	char separatorChar;	free(line->elements);
3406		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;
	}
3407
3408	initrdVal = end = malloc(totalSize);	if (line == entry->lines) {
3409		entry->lines = line->next;
3410		} else {
3411		prev = entry->lines;
3412		while (prev->next != line)
3413		prev = prev->next;
3414		prev->next = line->next;
3415		}
3416
3417	end = stpcpy (end, newKernelInitrd + prefixLen);	free(line);
3418		}
3419
3420	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3421	for (i = 0; i < extraInitrdCount; i++) {	{
3422	const char *extraInitrd;	struct singleLine newLine = {
3423		.indent = tmplLine->indent,
3424		.type = tmplLine->type,
3425		.next = tmplLine->next,
3426		};
3427		int firstQuotedItem = -1;
3428		int quoteLen = 0;
3429	int j;	int j;
3430		int element = 0;
3431		char *c;
3432
3433	extraInitrd = extraInitrds[i] + prefixLen;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3434	/* Don't add entries that are already there */	strcpy(c, tmplLine->elements[0].item);
3435	if (tmplLine != NULL) {	insertElement(&newLine, c, element++, cfi);
3436	for (j = 2; j < tmplLine->numElements; j++)	free(c);
3437	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	c = NULL;
3438	break;
3439		for (j = 1; j < tmplLine->numElements; j++) {
3440		if (firstQuotedItem == -1) {
3441		quoteLen += strlen(tmplLine->elements[j].item);
3442
3443		if (isquote(tmplLine->elements[j].item[0])) {
3444		firstQuotedItem = j;
3445		quoteLen +=
3446		strlen(tmplLine->elements[j].indent);
3447		} else {
3448		c = malloc(quoteLen + 1);
3449		strcpy(c, tmplLine->elements[j].item);
3450		insertElement(&newLine, c, element++, cfi);
3451		free(c);
3452		quoteLen = 0;
3453		}
3454		} else {
3455		int itemlen = strlen(tmplLine->elements[j].item);
3456		quoteLen += itemlen;
3457		quoteLen += strlen(tmplLine->elements[j].indent);
3458
3459		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3460		c = malloc(quoteLen + 1);
3461		c[0] = '\0';
3462		for (int i = firstQuotedItem; i < j + 1; i++) {
3463		strcat(c, tmplLine->elements[i].item);
3464		strcat(c, tmplLine->elements[i].indent);
3465		}
3466		insertElement(&newLine, c, element++, cfi);
3467		free(c);
3468
3469	if (j != tmplLine->numElements)	firstQuotedItem = -1;
3470	continue;	quoteLen = 0;
3471		}
3472		}
3473	}	}
3474		while (tmplLine->numElements)
3475	*end++ = separatorChar;	removeElement(tmplLine, 0);
3476	end = stpcpy(end, extraInitrd);	if (tmplLine->elements)
3477	}	free(tmplLine->elements);
3478
3479	return initrdVal;	tmplLine->numElements = newLine.numElements;
3480		tmplLine->elements = newLine.elements;
3481	}	}
3482
3483	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	static void insertElement(struct singleLine *line,
3484	const char * prefix,	const char *item, int insertHere,
3485	char * newKernelPath, char * newKernelTitle,	struct configFileInfo *cfi)
3486	char * newKernelArgs, char * newKernelInitrd,	{
3487	char ** extraInitrds, int extraInitrdCount,	struct keywordTypes *kw;
3488	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;
3489
3490	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	/* sanity check */
3491	while (findEntryByPath(config, buf, NULL, NULL)) {	if (insertHere > line->numElements) {
3492	sprintf(numBuf, "%d", i++);	dbgPrintf
3493	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	("insertElement() adjusting insertHere from %d to %d\n",
3494		insertHere, line->numElements);
3495		insertHere = line->numElements;
3496		}
3497
3498		line->elements = realloc(line->elements, (line->numElements + 1) *
3499		sizeof(*line->elements));
3500		memmove(&line->elements[insertHere + 1],
3501		&line->elements[insertHere],
3502		(line->numElements - insertHere) * sizeof(*line->elements));
3503		line->elements[insertHere].item = strdup(item);
3504
3505		kw = getKeywordByType(line->type, cfi);
3506
3507		if (line->numElements == 0) {
3508		indent[0] = '\0';
3509		} else if (insertHere == 0) {
3510		indent[0] = kw->nextChar;
3511		} else if (kw->separatorChar != '\0') {
3512		indent[0] = kw->separatorChar;
3513		} else {
3514		indent[0] = ' ';
3515	}	}
3516
3517	newKernelTitle = buf + 6;	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3518	}	/* move the end-of-line forward */
3519		line->elements[insertHere].indent =
3520		line->elements[insertHere - 1].indent;
3521		line->elements[insertHere - 1].indent = strdup(indent);
3522		} else {
3523		line->elements[insertHere].indent = strdup(indent);
3524		}
3525
3526	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;
	}
3527
3528	if (template) {	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3529	for (masterLine = template->lines;	line->elements[0].item,
3530	masterLine && (tmplLine = lineDup(masterLine));	line->elements[insertHere].item,
3531	lineFree(tmplLine), masterLine = masterLine->next)	line->elements[insertHere].indent, insertHere);
3532	{	}
3533	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
3534		static void removeElement(struct singleLine *line, int removeHere)
3535	/* skip comments */	{
3536	chptr = tmplLine->indent;	int i;
3537	while (*chptr && isspace(*chptr)) chptr++;
3538	if (*chptr == '#') continue;	/* sanity check */
3539		if (removeHere >= line->numElements)
3540	if (tmplLine->type == LT_KERNEL &&	return;
3541	tmplLine->numElements >= 2) {
3542	if (!template->multiboot && (needs & NEED_MB)) {	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3543	/* it's not a multiboot template and this is the kernel	removeHere, line->elements[removeHere].item);
3544	* line.  Try to be intelligent about inserting the
3545	* hypervisor at the same time.	free(line->elements[removeHere].item);
3546	*/
3547	if (config->cfi->mbHyperFirst) {	if (removeHere > 1) {
3548	/* insert the hypervisor first */	/* previous argument gets this argument's post-indentation */
3549	newLine = addLine(new, config->cfi, LT_HYPER,	free(line->elements[removeHere - 1].indent);
3550	tmplLine->indent,	line->elements[removeHere - 1].indent =
3551	newMBKernel + strlen(prefix));	line->elements[removeHere].indent;
3552	/* set up for adding the kernel line */	} else {
3553	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);
	}
3554	}	}
3555
3556	} else {	/* now collapse the array, but don't bother to realloc smaller */
3557	/* don't have a template, so start the entry with the	for (i = removeHere; i < line->numElements - 1; i++)
3558	* appropriate starting line	line->elements[i] = line->elements[i + 1];
3559	*/
3560	switch (config->cfi->entryStart) {	line->numElements--;
3561	case LT_KERNEL:	}
3562	if (new->multiboot && config->cfi->mbHyperFirst) {
3563	/* fall through to LT_HYPER */	static int argNameMatch(const char *one, const char *two)
3564		{
3565		char *first, *second;
3566		char *chptra, *chptrb;
3567		int rc;
3568
3569		first = strcpy(alloca(strlen(one) + 1), one);
3570		second = strcpy(alloca(strlen(two) + 1), two);
3571
3572		chptra = strchr(first, '=');
3573		if (chptra)
3574		*chptra = '\0';
3575
3576		chptrb = strchr(second, '=');
3577		if (chptrb)
3578		*chptrb = '\0';
3579
3580		rc = strcmp(first, second);
3581
3582		if (chptra)
3583		*chptra = '=';
3584		if (chptrb)
3585		*chptrb = '=';
3586
3587		return rc;
3588		}
3589
3590		static int argHasValue(const char *arg)
3591		{
3592		char *chptr;
3593
3594		chptr = strchr(arg, '=');
3595		if (chptr)
3596		return 1;
3597		return 0;
3598		}
3599
3600		static int argValueMatch(const char *one, const char *two)
3601		{
3602		char *first, *second;
3603		char *chptra, *chptrb;
3604
3605		first = strcpy(alloca(strlen(one) + 1), one);
3606		second = strcpy(alloca(strlen(two) + 1), two);
3607
3608		chptra = strchr(first, '=');
3609		if (chptra)
3610		chptra += 1;
3611
3612		chptrb = strchr(second, '=');
3613		if (chptrb)
3614		chptrb += 1;
3615
3616		if (!chptra && !chptrb)
3617		return 0;
3618		else if (!chptra)
3619		return *chptrb - 0;
3620		else if (!chptrb)
3621		return 0 - *chptra;
3622		else
3623		return strcmp(chptra, chptrb);
3624		}
3625
3626		int updateActualImage(struct grubConfig *cfg, const char *image,
3627		const char *prefix, const char *addArgs,
3628		const char *removeArgs, int multibootArgs)
3629		{
3630		struct singleEntry *entry;
3631		struct singleLine *line, *rootLine;
3632		int index = 0;
3633		int i, k;
3634		const char **newArgs, **oldArgs;
3635		const char **arg;
3636		int useKernelArgs, useRoot;
3637		int firstElement;
3638		int *usedElements;
3639		int doreplace;
3640
3641		if (!image)
3642		return 0;
3643
3644		if (!addArgs) {
3645		newArgs = malloc(sizeof(*newArgs));
3646		*newArgs = NULL;
3647		} else {
3648		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3649		fprintf(stderr,
3650		_("grubby: error separating arguments '%s'\n"),
3651		addArgs);
3652		return 1;
3653		}
3654		}
3655
3656		if (!removeArgs) {
3657		oldArgs = malloc(sizeof(*oldArgs));
3658		*oldArgs = NULL;
3659		} else {
3660		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3661		fprintf(stderr,
3662		_("grubby: error separating arguments '%s'\n"),
3663		removeArgs);
3664		free(newArgs);
3665		return 1;
3666		}
3667		}
3668
3669		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3670		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3671
3672		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3673		&& !multibootArgs);
3674
3675		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3676
3677		if (multibootArgs && !entry->multiboot)
3678		continue;
3679
3680		/* Determine where to put the args.  If this config supports
3681		* LT_KERNELARGS, use that.  Otherwise use
3682		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3683		*/
3684		if (useKernelArgs) {
3685		line = getLineByType(LT_KERNELARGS, entry->lines);
3686		if (!line) {
3687		/* no LT_KERNELARGS, need to add it */
3688		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3689		cfg->secondaryIndent, NULL);
3690		}
3691		firstElement = 1;
3692
3693		} else if (multibootArgs) {
3694		line = getLineByType(LT_HYPER, entry->lines);
3695		if (!line) {
3696		/* a multiboot entry without LT_HYPER? */
3697		continue;
3698		}
3699		firstElement = 2;
3700
3701	} else {	} else {
3702	newLine = addLine(new, config->cfi, LT_KERNEL,	line =
3703	config->primaryIndent,	getLineByType(LT_KERNEL | LT_MBMODULE |
3704	newKernelPath + strlen(prefix));	LT_KERNEL_EFI | LT_KERNEL_16,
3705	needs &= ~NEED_KERNEL;	entry->lines);
3706	break;	if (!line) {
3707		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3708		continue;
3709		}
3710		firstElement = 2;
3711	}	}
3712
3713	case LT_HYPER:	/* handle the elilo case which does:
3714	newLine = addLine(new, config->cfi, LT_HYPER,	*   append="hypervisor args -- kernel args"
3715	config->primaryIndent,	*/
3716	newMBKernel + strlen(prefix));	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3717	needs &= ~NEED_MB;	/* this is a multiboot entry, make sure there's
3718	break;	* -- on the args line
3719		*/
3720		for (i = firstElement; i < line->numElements; i++) {
3721		if (!strcmp(line->elements[i].item, "--"))
3722		break;
3723		}
3724		if (i == line->numElements) {
3725		/* assume all existing args are kernel args,
3726		* prepend -- to make it official
3727		*/
3728		insertElement(line, "--", firstElement,
3729		cfg->cfi);
3730		i = firstElement;
3731		}
3732		if (!multibootArgs) {
3733		/* kernel args start after the -- */
3734		firstElement = i + 1;
3735		}
3736		} else if (cfg->cfi->mbConcatArgs) {
3737		/* this is a non-multiboot entry, remove hyper args */
3738		for (i = firstElement; i < line->numElements; i++) {
3739		if (!strcmp(line->elements[i].item, "--"))
3740		break;
3741		}
3742		if (i < line->numElements) {
3743		/* remove args up to -- */
3744		while (strcmp
3745		(line->elements[firstElement].item,
3746		"--"))
3747		removeElement(line, firstElement);
3748		/* remove -- */
3749		removeElement(line, firstElement);
3750		}
3751		}
3752
3753	case LT_MENUENTRY: {	usedElements = calloc(line->numElements, sizeof(*usedElements));
3754	char *nkt = malloc(strlen(newKernelTitle)+3);
3755	strcpy(nkt, "'");	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3756	strcat(nkt, newKernelTitle);
3757	strcat(nkt, "'");	doreplace = 1;
3758	newLine = addLine(new, config->cfi, LT_MENUENTRY,	for (i = firstElement; i < line->numElements; i++) {
3759	config->primaryIndent, nkt);	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3760	free(nkt);	!strcmp(line->elements[i].item, "--")) {
3761	needs &= ~NEED_TITLE;	/* reached the end of hyper args, insert here */
3762	needs |= NEED_END;	doreplace = 0;
3763	break;	break;
3764	}	}
3765	case LT_TITLE:	if (usedElements[i])
3766	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	continue;
3767	char * templabel;	if (!argNameMatch(line->elements[i].item, *arg)) {
3768	int x = 0, y = 0;	usedElements[i] = 1;
3769		break;
3770	templabel = strdup(newKernelTitle);	}
3771	while( templabel[x]){	}
3772	if( templabel[x] == ' ' ){
3773	y = x;	if (i < line->numElements && doreplace) {
3774	while( templabel[y] ){	/* direct replacement */
3775	templabel[y] = templabel[y+1];	free(line->elements[i].item);
3776	y++;	line->elements[i].item = strdup(*arg);
3777
3778		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3779		/* root= replacement */
3780		rootLine = getLineByType(LT_ROOT, entry->lines);
3781		if (rootLine) {
3782		free(rootLine->elements[1].item);
3783		rootLine->elements[1].item =
3784		strdup(*arg + 5);
3785		} else {
3786		rootLine =
3787		addLine(entry, cfg->cfi, LT_ROOT,
3788		cfg->secondaryIndent,
3789		*arg + 5);
3790		}
3791		}
3792
3793		else {
3794		/* insert/append */
3795		insertElement(line, *arg, i, cfg->cfi);
3796		usedElements =
3797		realloc(usedElements,
3798		line->numElements *
3799		sizeof(*usedElements));
3800		memmove(&usedElements[i + 1], &usedElements[i],
3801		line->numElements - i - 1);
3802		usedElements[i] = 1;
3803
3804		/* if we updated a root= here even though
3805		* there is a LT_ROOT available we need to
3806		* remove the LT_ROOT entry (this will happen
3807		* if we switch from a device to a label) */
3808		if (useRoot && !strncmp(*arg, "root=", 5)) {
3809		rootLine =
3810		getLineByType(LT_ROOT,
3811		entry->lines);
3812		if (rootLine)
3813		removeLine(entry, rootLine);
3814		}
3815		}
3816		}
3817
3818		free(usedElements);
3819
3820		for (arg = oldArgs; *arg; arg++) {
3821		for (i = firstElement; i < line->numElements; i++) {
3822		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3823		!strcmp(line->elements[i].item, "--"))
3824		/* reached the end of hyper args, stop here */
3825		break;
3826		if (!argNameMatch(line->elements[i].item, *arg)) {
3827		if (!argHasValue(*arg) ||
3828		!argValueMatch(line->elements[i].item, *arg)) {
3829		removeElement(line, i);
3830		break;
3831	}	}
3832	}	}
	x++;
3833	}	}
3834	newLine = addLine(new, config->cfi, LT_TITLE,	/* handle removing LT_ROOT line too */
3835	config->primaryIndent, templabel);	if (useRoot && !strncmp(*arg, "root=", 5)) {
3836	free(templabel);	rootLine = getLineByType(LT_ROOT, entry->lines);
3837	}else{	if (rootLine)
3838	newLine = addLine(new, config->cfi, LT_TITLE,	removeLine(entry, rootLine);
3839	config->primaryIndent, newKernelTitle);	}
3840	}	}
3841	needs &= ~NEED_TITLE;
3842		if (line->numElements == 1) {
3843		/* don't need the line at all (note it has to be a
3844		LT_KERNELARGS for this to happen */
3845		removeLine(entry, line);
3846		}
3847		}
3848
3849		free(newArgs);
3850		free(oldArgs);
3851
3852		return 0;
3853		}
3854
3855		int updateImage(struct grubConfig *cfg, const char *image,
3856		const char *prefix, const char *addArgs,
3857		const char *removeArgs,
3858		const char *addMBArgs, const char *removeMBArgs)
3859		{
3860		int rc = 0;
3861
3862		if (!image)
3863		return rc;
3864
3865		/* update the main args first... */
3866		if (addArgs || removeArgs)
3867		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3868		0);
3869		if (rc)
3870		return rc;
3871
3872		/* and now any multiboot args */
3873		if (addMBArgs || removeMBArgs)
3874		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3875		removeMBArgs, 1);
3876		return rc;
3877		}
3878
3879		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3880		const char *image, const char *prefix, const char *initrd,
3881		const char *title)
3882		{
3883		struct singleEntry *entry;
3884		struct singleLine *line, *kernelLine, *endLine = NULL;
3885		int index = 0;
3886
3887		if (!image)
3888		return 0;
3889
3890		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3891		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3892		if (!kernelLine)
3893		continue;
3894
3895		/* if title is supplied, the entry's title must match it. */
3896		if (title) {
3897		char *linetitle;
3898
3899		line =
3900		getLineByType(LT_TITLE | LT_MENUENTRY,
3901		entry->lines);
3902		if (!line)
3903		continue;
3904
3905		linetitle = extractTitle(cfg, line);
3906		if (!linetitle)
3907		continue;
3908		if (strcmp(title, linetitle)) {
3909		free(linetitle);
3910		continue;
3911		}
3912		free(linetitle);
3913		}
3914
3915		if (prefix) {
3916		int prefixLen = strlen(prefix);
3917		if (!strncmp(initrd, prefix, prefixLen))
3918		initrd += prefixLen;
3919		}
3920		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3921		if (endLine)
3922		removeLine(entry, endLine);
3923		line =
3924		addLine(entry, cfg->cfi,
3925		preferredLineType(LT_MBMODULE, cfg->cfi),
3926		kernelLine->indent, initrd);
3927		if (!line)
3928		return 1;
3929		if (endLine) {
3930		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3931		if (!line)
3932		return 1;
3933		}
3934
3935	break;	break;
3936		}
3937
3938	default:	return 0;
3939	abort();	}
3940
3941		int updateInitrd(struct grubConfig *cfg, const char *image,
3942		const char *prefix, const char *initrd, const char *title)
3943		{
3944		struct singleEntry *entry;
3945		struct singleLine *line, *kernelLine, *endLine = NULL;
3946		int index = 0;
3947
3948		if (!image)
3949		return 0;
3950
3951		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3952		kernelLine =
3953		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3954		entry->lines);
3955		if (!kernelLine)
3956		continue;
3957
3958		/* if title is supplied, the entry's title must match it. */
3959		if (title) {
3960		char *linetitle;
3961
3962		line =
3963		getLineByType(LT_TITLE | LT_MENUENTRY,
3964		entry->lines);
3965		if (!line)
3966		continue;
3967
3968		linetitle = extractTitle(cfg, line);
3969		if (!linetitle)
3970		continue;
3971		if (strcmp(title, linetitle)) {
3972		free(linetitle);
3973		continue;
3974		}
3975		free(linetitle);
3976		}
3977
3978		line =
3979		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3980		entry->lines);
3981		if (line)
3982		removeLine(entry, line);
3983		if (prefix) {
3984		int prefixLen = strlen(prefix);
3985		if (!strncmp(initrd, prefix, prefixLen))
3986		initrd += prefixLen;
3987		}
3988		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3989		if (endLine)
3990		removeLine(entry, endLine);
3991		enum lineType_e lt;
3992		switch (kernelLine->type) {
3993		case LT_KERNEL:
3994		lt = LT_INITRD;
3995		break;
3996		case LT_KERNEL_EFI:
3997		lt = LT_INITRD_EFI;
3998		break;
3999		case LT_KERNEL_16:
4000		lt = LT_INITRD_16;
4001		break;
4002		default:
4003		lt = preferredLineType(LT_INITRD, cfg->cfi);
4004		}
4005		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
4006		if (!line)
4007		return 1;
4008		if (endLine) {
4009		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
4010		if (!line)
4011		return 1;
4012		}
4013
4014		break;
4015	}	}
	}
4016
4017	/* add the remainder of the lines, i.e. those that either	return 0;
4018	* weren't present in the template, or in the case of no template,	}
	* all the lines following the entryStart.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
4019
4020	if (needs) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
4021	printf(_("grubby: needs=%d, aborting\n"), needs);	{
4022	abort();	int fd;
4023	}	unsigned char bootSect[512];
4024		int offset;
4025
4026		fd = open(device, O_RDONLY);
4027		if (fd < 0) {
4028		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4029		device, strerror(errno));
4030		return 1;
4031		}
4032
4033	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (read(fd, bootSect, 512) != 512) {
4034	newMBKernelArgs, NULL)) return 1;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4035		device, strerror(errno));
4036		return 1;
4037		}
4038		close(fd);
4039
4040	return 0;	/* first three bytes should match, a jmp short should be in there */
4041		if (memcmp(boot, bootSect, 3))
4042		return 0;
4043
4044		if (boot[1] == JMP_SHORT_OPCODE) {
4045		offset = boot[2] + 2;
4046		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4047		offset = (boot[3] << 8) + boot[2] + 2;
4048		} else if (boot[0] == JMP_SHORT_OPCODE) {
4049		offset = boot[1] + 2;
4050		/*
4051		* it looks like grub, when copying stage1 into the mbr,
4052		* patches stage1 right after the JMP location, replacing
4053		* other instructions such as JMPs for NOOPs. So, relax the
4054		* check a little bit by skipping those different bytes.
4055		*/
4056		if ((bootSect[offset + 1] == NOOP_OPCODE)
4057		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4058		offset = offset + 3;
4059		}
4060		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4061		offset = (boot[2] << 8) + boot[1] + 2;
4062		} else {
4063		return 0;
4064		}
4065
4066		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4067		return 0;
4068
4069		return 2;
4070	}	}
4071
4072	static void traceback(int signum)	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4073	{	{
4074	void *array[40];	int fd;
4075	size_t size;	char buf[65536];
4076		char *end;
4077		char *chptr;
4078		char *chptr2;
4079		int rc;
4080
4081		/* it's on raid; we need to parse /proc/mdstat and check all of the
4082		*raw* devices listed in there */
4083
4084		if (!strncmp(mdDev, "/dev/", 5))
4085		mdDev += 5;
4086
4087		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4088		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4089		strerror(errno));
4090		return 2;
4091		}
4092
4093		rc = read(fd, buf, sizeof(buf) - 1);
4094		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4095		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4096		strerror(errno));
4097		close(fd);
4098		return 2;
4099		}
4100		close(fd);
4101		buf[rc] = '\0';
4102
4103	signal(SIGSEGV, SIG_DFL);	chptr = buf;
4104	memset(array, '\0', sizeof (array));	while (*chptr) {
4105	size = backtrace(array, 40);	end = strchr(chptr, '\n');
4106		if (!end)
4107	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	break;
4108	(unsigned long)size);	*end = '\0';
4109	backtrace_symbols_fd(array, size, STDERR_FILENO);
4110	exit(1);	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4111	}	chptr[strlen(mdDev)] == ' ') {
4112
4113	int main(int argc, const char ** argv) {	/* found the device */
4114	poptContext optCon;	while (*chptr && *chptr != ':')
4115	const char * grubConfig = NULL;	chptr++;
4116	char * outputFile = NULL;	chptr++;
4117	int arg = 0;	while (*chptr && isspace(*chptr))
4118	int flags = 0;	chptr++;
4119	int badImageOkay = 0;
4120	int configureGrub2 = 0;	/* skip the "active" bit */
4121	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	while (*chptr && !isspace(*chptr))
4122	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	chptr++;
4123	int configureExtLinux = 0;	while (*chptr && isspace(*chptr))
4124	int bootloaderProbe = 0;	chptr++;
4125	int extraInitrdCount = 0;
4126	char * updateKernelPath = NULL;	/* skip the raid level */
4127	char * newKernelPath = NULL;	while (*chptr && !isspace(*chptr))
4128	char * removeKernelPath = NULL;	chptr++;
4129	char * newKernelArgs = NULL;	while (*chptr && isspace(*chptr))
4130	char * newKernelInitrd = NULL;	chptr++;
4131	char * newKernelTitle = NULL;
4132	char * newKernelVersion = NULL;	/* everything else is partition stuff */
4133	char * newMBKernel = NULL;	while (*chptr) {
4134	char * newMBKernelArgs = NULL;	chptr2 = chptr;
4135	char * removeMBKernelArgs = NULL;	while (*chptr2 && *chptr2 != '[')
4136	char * removeMBKernel = NULL;	chptr2++;
4137	char * bootPrefix = NULL;	if (!*chptr2)
4138	char * defaultKernel = NULL;	break;
4139	char * removeArgs = NULL;
4140	char * kernelInfo = NULL;	/* yank off the numbers at the end */
4141	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	chptr2--;
4142	const char * chptr = NULL;	while (isdigit(*chptr2) && chptr2 > chptr)
4143	struct configFileInfo * cfi = NULL;	chptr2--;
4144	struct grubConfig * config;	chptr2++;
4145	struct singleEntry * template = NULL;	*chptr2 = '\0';
4146	int copyDefault = 0, makeDefault = 0;
4147	int displayDefault = 0;	/* Better, now we need the /dev/ back. We're
4148	int displayDefaultIndex = 0;	* done with everything before this point, so
4149	int displayDefaultTitle = 0;	* we can just put the /dev/ part there.
4150	struct poptOption options[] = {	* There will always be room. */
4151	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	memcpy(chptr - 5, "/dev/", 5);
4152	_("add an entry for the specified kernel"), _("kernel-path") },	rc = checkDeviceBootloader(chptr - 5, boot);
4153	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	if (rc != 2) {
4154	_("add an entry for the specified multiboot kernel"), NULL },	return rc;
4155	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	}
4156	_("default arguments for the new kernel or new arguments for "
4157	"kernel being updated"), _("args") },	chptr = chptr2 + 1;
4158	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	/* skip the [11] bit */
4159	_("default arguments for the new multiboot kernel or "	while (*chptr && !isspace(*chptr))
4160	"new arguments for multiboot kernel being updated"), NULL },	chptr++;
4161	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	/* and move to the next one */
4162	_("don't sanity check images in boot entries (for testing only)"),	while (*chptr && isspace(*chptr))
4163	NULL },	chptr++;
4164	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	}
4165	_("filestystem which contains /boot directory (for testing only)"),
4166	_("bootfs") },	/*  we're good to go */
4167	#if defined(__i386__) || defined(__x86_64__)	return 2;
4168	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	}
4169	_("check if lilo is installed on lilo.conf boot sector") },
4170	#endif	chptr = end + 1;
4171	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	}
4172	_("path to grub config file to update (\"-\" for stdin)"),
4173	_("path") },	fprintf(stderr,
4174	{ "copy-default", 0, 0, &copyDefault, 0,	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4175	_("use the default boot entry as a template for the new entry "	mdDev);
4176	"being added; if the default is not a linux image, or if "	return 0;
4177	"the kernel referenced by the default image does not exist, "	}
4178	"the first linux entry whose kernel does exist is used as the "
4179	"template"), NULL },	int checkForLilo(struct grubConfig *config)
4180	{ "debug", 0, 0, &debug, 0,	{
4181	_("print debugging information for failures") },	int fd;
4182	{ "default-kernel", 0, 0, &displayDefault, 0,	unsigned char boot[512];
4183	_("display the path of the default kernel") },	struct singleLine *line;
4184	{ "default-index", 0, 0, &displayDefaultIndex, 0,
4185	_("display the index of the default kernel") },	for (line = config->theLines; line; line = line->next)
4186	{ "default-title", 0, 0, &displayDefaultTitle, 0,	if (line->type == LT_BOOT)
4187	_("display the title of the default kernel") },	break;
4188	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4189	_("configure elilo bootloader") },	if (!line) {
4190	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	fprintf(stderr,
4191	_("configure extlinux bootloader (from syslinux)") },	_
4192	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	("grubby: no boot line found in lilo configuration\n"));
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	optCon = poptGetContext("grubby", argc, argv, options, 0);
	poptReadDefaultConfig(optCon, 1);
	while ((arg = poptGetNextOpt(optCon)) >= 0) {
	switch (arg) {
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
4193	return 1;	return 1;
	}
	break;
4194	}	}
	}
4195
4196	if (arg < -1) {	if (line->numElements != 2)
4197	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	return 1;
4198	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4199	poptStrerror(arg));	fd = open("/boot/boot.b", O_RDONLY);
4200	return 1;	if (fd < 0) {
4201	}	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4202		"/boot/boot.b", strerror(errno));
4203		return 1;
4204		}
4205
4206		if (read(fd, boot, 512) != 512) {
4207		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4208		"/boot/boot.b", strerror(errno));
4209		return 1;
4210		}
4211		close(fd);
4212
4213		if (!strncmp("/dev/md", line->elements[1].item, 7))
4214		return checkLiloOnRaid(line->elements[1].item, boot);
4215
4216		return checkDeviceBootloader(line->elements[1].item, boot);
4217		}
4218
4219		int checkForGrub2(struct grubConfig *config)
4220		{
4221		if (!access("/etc/grub.d/", R_OK))
4222		return 2;
4223
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4224	return 1;	return 1;
4225	}	}
4226
4227		int checkForGrub(struct grubConfig *config)
4228		{
4229		int fd;
4230		unsigned char bootSect[512];
4231		char *boot;
4232		int onSuse = isSuseSystem();
4233
4234		if (onSuse) {
4235		if (parseSuseGrubConf(NULL, &boot))
4236		return 0;
4237		} else {
4238		if (parseSysconfigGrub(NULL, &boot))
4239		return 0;
4240		}
4241
4242		/* assume grub is not installed -- not an error condition */
4243		if (!boot)
4244		return 0;
4245
4246		fd = open("/boot/grub/stage1", O_RDONLY);
4247		if (fd < 0)
4248		/* this doesn't exist if grub hasn't been installed */
4249		return 0;
4250
4251		if (read(fd, bootSect, 512) != 512) {
4252		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4253		"/boot/grub/stage1", strerror(errno));
4254		close(fd);
4255		return 1;
4256		}
4257		close(fd);
4258
4259		/* The more elaborate checks do not work on SuSE. The checks done
4260		* seem to be reasonble (at least for now), so just return success
4261		*/
4262		if (onSuse)
4263		return 2;
4264
4265		return checkDeviceBootloader(boot, bootSect);
4266		}
4267
4268		int checkForExtLinux(struct grubConfig *config)
4269		{
4270		int fd;
4271		unsigned char bootSect[512];
4272		char *boot;
4273		char executable[] = "/boot/extlinux/extlinux";
4274
4275		printf("entered: checkForExtLinux()\n");
4276
4277		if (parseSysconfigGrub(NULL, &boot))
4278		return 0;
4279
4280		/* assume grub is not installed -- not an error condition */
4281		if (!boot)
4282		return 0;
4283
4284		fd = open(executable, O_RDONLY);
4285		if (fd < 0)
4286		/* this doesn't exist if grub hasn't been installed */
4287		return 0;
4288
4289		if (read(fd, bootSect, 512) != 512) {
4290		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4291		executable, strerror(errno));
4292		return 1;
4293		}
4294		close(fd);
4295
4296		return checkDeviceBootloader(boot, bootSect);
4297		}
4298
4299		int checkForYaboot(struct grubConfig *config)
4300		{
4301		/*
4302		* This is a simplistic check that we consider good enough for own puporses
4303		*
4304		* If we were to properly check if yaboot is *installed* we'd need to:
4305		* 1) get the system boot device (LT_BOOT)
4306		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4307		*    the content on the boot device
4308		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4309		* 4) check again if binary and boot device contents match
4310		*/
4311		if (!access("/etc/yaboot.conf", R_OK))
4312		return 2;
4313
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4314	return 1;	return 1;
4315	} else if (bootloaderProbe && grubConfig) {	}
4316	fprintf(stderr,
4317	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4318		{
4319		if (!access("/etc/elilo.conf", R_OK))
4320		return 2;
4321
4322	return 1;	return 1;
4323	} else if (configureGrub2) {	}
4324	cfi = &grub2ConfigType;
4325	} else if (configureLilo) {	static size_t getRootSpecifier(const char *str)
4326	cfi = &liloConfigType;	{
4327	} else if (configureGrub) {	size_t rs = 0;
4328	cfi = &grubConfigType;
4329	} else if (configureELilo) {	if (*str == '(') {
4330	cfi = &eliloConfigType;	for (; str[rs] != ')' && !isspace(str[rs]); rs++) {
4331	} else if (configureYaboot) {	if (!str[rs])
4332	cfi = &yabootConfigType;	return rs;
4333	} else if (configureSilo) {	}
4334	cfi = &siloConfigType;	rs++;
4335	} else if (configureZipl) {	}
4336	cfi = &ziplConfigType;
4337	} else if (configureExtLinux) {	return rs;
4338	cfi = &extlinuxConfigType;	}
4339	useextlinuxmenu=1;
4340	}	static char *getInitrdVal(struct grubConfig *config,
4341		const char *prefix, struct singleLine *tmplLine,
4342		const char *newKernelInitrd,
4343		const char **extraInitrds, int extraInitrdCount)
4344		{
4345		char *initrdVal, *end;
4346		int i;
4347		size_t totalSize;
4348		size_t prefixLen;
4349		char separatorChar;
4350
4351		prefixLen = strlen(prefix);
4352		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4353
4354		for (i = 0; i < extraInitrdCount; i++) {
4355		totalSize += sizeof(separatorChar);
4356		totalSize += strlen(extraInitrds[i]) - prefixLen;
4357		}
4358
4359		initrdVal = end = malloc(totalSize);
4360
4361		end = stpcpy(end, newKernelInitrd + prefixLen);
4362
4363		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4364		for (i = 0; i < extraInitrdCount; i++) {
4365		const char *extraInitrd;
4366		int j;
4367
4368		extraInitrd = extraInitrds[i] + prefixLen;
4369		/* Don't add entries that are already there */
4370		if (tmplLine != NULL) {
4371		for (j = 2; j < tmplLine->numElements; j++)
4372		if (strcmp
4373		(extraInitrd,
4374		tmplLine->elements[j].item) == 0)
4375		break;
4376
4377		if (j != tmplLine->numElements)
4378		continue;
4379		}
4380
4381	if (!cfi) {	*end++ = separatorChar;
4382	#ifdef __ia64__	end = stpcpy(end, extraInitrd);
4383	cfi = &eliloConfigType;	}
4384	#elif __powerpc__
4385	cfi = &yabootConfigType;	return initrdVal;
4386	#elif __sparc__	}
4387	cfi = &siloConfigType;
4388	#elif __s390__	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4389	cfi = &ziplConfigType;	const char *prefix,
4390	#elif __s390x__	const char *newKernelPath, const char *newKernelTitle,
4391	cfi = &ziplConfigtype;	const char *newKernelArgs, const char *newKernelInitrd,
4392	#else	const char **extraInitrds, int extraInitrdCount,
4393	if (grub2FindConfig(&grub2ConfigType))	const char *newMBKernel, const char *newMBKernelArgs,
4394	cfi = &grub2ConfigType;	const char *newDevTreePath, int newIndex)
4395		{
4396		struct singleEntry *new, *entry, *prev = NULL;
4397		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4398		int needs;
4399		char *indexs;
4400		char *chptr;
4401		int rc;
4402
4403		if (!newKernelPath)
4404		return 0;
4405
4406		rc = asprintf(&indexs, "%d", newIndex);
4407		if (rc < 0)
4408		return 1;
4409
4410		/* if the newKernelTitle is too long silently munge it into something
4411		* we can live with. truncating is first check, then we'll just mess with
4412		* it until it looks better */
4413		if (config->cfi->maxTitleLength &&
4414		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4415		char *buf = alloca(config->cfi->maxTitleLength + 7);
4416		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4417		int i = 1;
4418
4419		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4420		newKernelTitle);
4421		while (findEntryByPath(config, buf, NULL, NULL)) {
4422		sprintf(numBuf, "%d", i++);
4423		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4424		}
4425
4426		newKernelTitle = buf + 6;
4427		}
4428
4429		new = malloc(sizeof(*new));
4430		new->skip = 0;
4431		new->multiboot = 0;
4432		new->lines = NULL;
4433		entry = config->entries;
4434		for (unsigned int i = 0; i < newIndex; i++) {
4435		if (!entry)
4436		break;
4437		prev = entry;
4438		entry = entry->next;
4439		}
4440		new->next = entry;
4441
4442		if (prev)
4443		prev->next = new;
4444	else	else
4445	cfi = &grubConfigType;	config->entries = new;
	#endif
	}
4446
4447	if (!grubConfig) {	/* copy/update from the template */
4448	if (cfi->findConfig)	needs = NEED_KERNEL | NEED_TITLE;
4449	grubConfig = cfi->findConfig(cfi);	if (newKernelInitrd)
4450	if (!grubConfig)	needs |= NEED_INITRD;
4451	grubConfig = cfi->defaultConfig;	if (newMBKernel) {
4452	}	needs |= NEED_MB;
4453		new->multiboot = 1;
4454		}
4455		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4456		needs |= NEED_DEVTREE;
4457
4458		if (template) {
4459		for (masterLine = template->lines;
4460		masterLine && (tmplLine = lineDup(masterLine));
4461		lineFree(tmplLine), masterLine = masterLine->next) {
4462		dbgPrintf("addNewKernel processing %d\n",
4463		tmplLine->type);
4464
4465		/* skip comments */
4466		chptr = tmplLine->indent;
4467		while (*chptr && isspace(*chptr))
4468		chptr++;
4469		if (*chptr == '#')
4470		continue;
4471
4472		if (iskernel(tmplLine->type)
4473		&& tmplLine->numElements >= 2) {
4474		if (!template->multiboot && (needs & NEED_MB)) {
4475		/* it's not a multiboot template and
4476		* this is the kernel line.  Try to
4477		* be intelligent about inserting the
4478		* hypervisor at the same time.
4479		*/
4480		if (config->cfi->mbHyperFirst) {
4481		/* insert the hypervisor first */
4482		newLine =
4483		addLine(new, config->cfi,
4484		LT_HYPER,
4485		tmplLine->indent,
4486		newMBKernel +
4487		strlen(prefix));
4488		/* set up for adding the
4489		* kernel line */
4490		free(tmplLine->indent);
4491		tmplLine->indent =
4492		strdup(config->
4493		secondaryIndent);
4494		needs &= ~NEED_MB;
4495		}
4496		if (needs & NEED_KERNEL) {
4497		/* use addLineTmpl to
4498		* preserve line elements,
4499		* otherwise we could just
4500		* call addLine.
4501		* Unfortunately this means
4502		* making some changes to the
4503		* template such as the
4504		* indent change above and
4505		* the type change below.
4506		*/
4507		struct keywordTypes *mbm_kw =
4508		getKeywordByType
4509		(LT_MBMODULE, config->cfi);
4510		if (mbm_kw) {
4511		tmplLine->type =
4512		LT_MBMODULE;
4513		free(tmplLine->
4514		elements[0].item);
4515		tmplLine->elements[0].
4516		item =
4517		strdup(mbm_kw->key);
4518		}
4519		newLine =
4520		addLineTmpl(new, tmplLine,
4521		newLine,
4522		newKernelPath +
4523		strlen(prefix),
4524		config->cfi);
4525		needs &= ~NEED_KERNEL;
4526		}
4527		if (needs & NEED_MB) { /* !mbHyperFirst */
4528		newLine =
4529		addLine(new, config->cfi,
4530		LT_HYPER,
4531		config->
4532		secondaryIndent,
4533		newMBKernel +
4534		strlen(prefix));
4535		needs &= ~NEED_MB;
4536		}
4537		} else if (needs & NEED_KERNEL) {
4538		newLine =
4539		addLineTmpl(new, tmplLine, newLine,
4540		newKernelPath +
4541		strlen(prefix),
4542		config->cfi);
4543		needs &= ~NEED_KERNEL;
4544		}
4545
4546		} else if (tmplLine->type == LT_HYPER &&
4547		tmplLine->numElements >= 2) {
4548		if (needs & NEED_MB) {
4549		newLine =
4550		addLineTmpl(new, tmplLine, newLine,
4551		newMBKernel +
4552		strlen(prefix),
4553		config->cfi);
4554		needs &= ~NEED_MB;
4555		}
4556
4557	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	} else if (tmplLine->type == LT_MBMODULE &&
4558	newKernelPath || removeKernelPath || makeDefault ||	tmplLine->numElements >= 2) {
4559	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	if (new->multiboot) {
4560	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	if (needs & NEED_KERNEL) {
4561		newLine =
4562		addLineTmpl(new, tmplLine,
4563		newLine,
4564		newKernelPath +
4565		strlen(prefix),
4566		config->cfi);
4567		needs &= ~NEED_KERNEL;
4568		} else if (config->cfi->mbInitRdIsModule
4569		&& (needs & NEED_INITRD)) {
4570		char *initrdVal;
4571		initrdVal =
4572		getInitrdVal(config, prefix,
4573		tmplLine,
4574		newKernelInitrd,
4575		extraInitrds,
4576		extraInitrdCount);
4577		newLine =
4578		addLineTmpl(new, tmplLine,
4579		newLine,
4580		initrdVal,
4581		config->cfi);
4582		free(initrdVal);
4583		needs &= ~NEED_INITRD;
4584		}
4585		} else if (needs & NEED_KERNEL) {
4586		/* template is multi but new is not,
4587		* insert the kernel in the first
4588		* module slot
4589		*/
4590		tmplLine->type =
4591		preferredLineType(LT_KERNEL,
4592		config->cfi);
4593		free(tmplLine->elements[0].item);
4594		tmplLine->elements[0].item =
4595		strdup(getKeywordByType
4596		(tmplLine->type,
4597		config->cfi)->key);
4598		newLine =
4599		addLineTmpl(new, tmplLine, newLine,
4600		newKernelPath +
4601		strlen(prefix),
4602		config->cfi);
4603		needs &= ~NEED_KERNEL;
4604		} else if (needs & NEED_INITRD) {
4605		char *initrdVal;
4606		/* template is multi but new is not,
4607		* insert the initrd in the second
4608		* module slot
4609		*/
4610		tmplLine->type =
4611		preferredLineType(LT_INITRD,
4612		config->cfi);
4613		free(tmplLine->elements[0].item);
4614		tmplLine->elements[0].item =
4615		strdup(getKeywordByType
4616		(tmplLine->type,
4617		config->cfi)->key);
4618		initrdVal =
4619		getInitrdVal(config, prefix,
4620		tmplLine,
4621		newKernelInitrd,
4622		extraInitrds,
4623		extraInitrdCount);
4624		newLine =
4625		addLineTmpl(new, tmplLine, newLine,
4626		initrdVal, config->cfi);
4627		free(initrdVal);
4628		needs &= ~NEED_INITRD;
4629		}
4630
4631		} else if (isinitrd(tmplLine->type)
4632		&& tmplLine->numElements >= 2) {
4633		if (needs & NEED_INITRD && new->multiboot
4634		&& !template->multiboot
4635		&& config->cfi->mbInitRdIsModule) {
4636		/* make sure we don't insert the
4637		* module initrd before the module
4638		* kernel... if we don't do it here,
4639		* it will be inserted following the
4640		* template.
4641		*/
4642		if (!needs & NEED_KERNEL) {
4643		char *initrdVal;
4644
4645		initrdVal =
4646		getInitrdVal(config, prefix,
4647		tmplLine,
4648		newKernelInitrd,
4649		extraInitrds,
4650		extraInitrdCount);
4651		newLine =
4652		addLine(new, config->cfi,
4653		LT_MBMODULE,
4654		config->
4655		secondaryIndent,
4656		initrdVal);
4657		free(initrdVal);
4658		needs &= ~NEED_INITRD;
4659		}
4660		} else if (needs & NEED_INITRD) {
4661		char *initrdVal;
4662		initrdVal =
4663		getInitrdVal(config, prefix,
4664		tmplLine,
4665		newKernelInitrd,
4666		extraInitrds,
4667		extraInitrdCount);
4668		newLine =
4669		addLineTmpl(new, tmplLine, newLine,
4670		initrdVal, config->cfi);
4671		free(initrdVal);
4672		needs &= ~NEED_INITRD;
4673		}
4674
4675		} else if (tmplLine->type == LT_MENUENTRY &&
4676		(needs & NEED_TITLE)) {
4677		requote(tmplLine, config->cfi);
4678		char *nkt = malloc(strlen(newKernelTitle) + 3);
4679		strcpy(nkt, "'");
4680		strcat(nkt, newKernelTitle);
4681		strcat(nkt, "'");
4682		newLine =
4683		addLineTmpl(new, tmplLine, newLine, nkt,
4684		config->cfi);
4685		free(nkt);
4686		needs &= ~NEED_TITLE;
4687		} else if (tmplLine->type == LT_TITLE &&
4688		(needs & NEED_TITLE)) {
4689		if (tmplLine->numElements >= 2) {
4690		newLine =
4691		addLineTmpl(new, tmplLine, newLine,
4692		newKernelTitle,
4693		config->cfi);
4694		needs &= ~NEED_TITLE;
4695		} else if (tmplLine->numElements == 1 &&
4696		config->cfi->titleBracketed) {
4697		/* addLineTmpl doesn't handle
4698		* titleBracketed */
4699		newLine =
4700		addLine(new, config->cfi, LT_TITLE,
4701		tmplLine->indent,
4702		newKernelTitle);
4703		needs &= ~NEED_TITLE;
4704		}
4705		} else if (tmplLine->type == LT_ECHO) {
4706		requote(tmplLine, config->cfi);
4707		static const char *prefix = "'Loading ";
4708		if (tmplLine->numElements > 1 &&
4709		strstr(tmplLine->elements[1].item, prefix)
4710		&& masterLine->next
4711		&& iskernel(masterLine->next->type)) {
4712		char *newTitle =
4713		malloc(strlen(prefix) +
4714		strlen(newKernelTitle) + 2);
4715
4716		strcpy(newTitle, prefix);
4717		strcat(newTitle, newKernelTitle);
4718		strcat(newTitle, "'");
4719		newLine =
4720		addLine(new, config->cfi, LT_ECHO,
4721		tmplLine->indent, newTitle);
4722		free(newTitle);
4723		} else {
4724		/* pass through other lines from the
4725		* template */
4726		newLine =
4727		addLineTmpl(new, tmplLine, newLine,
4728		NULL, config->cfi);
4729		}
4730		} else if (tmplLine->type == LT_DEVTREE &&
4731		tmplLine->numElements == 2
4732		&& newDevTreePath) {
4733		newLine =
4734		addLineTmpl(new, tmplLine, newLine,
4735		newDevTreePath + strlen(prefix),
4736		config->cfi);
4737		needs &= ~NEED_DEVTREE;
4738		} else if (tmplLine->type == LT_ENTRY_END
4739		&& needs & NEED_DEVTREE) {
4740		const char *ndtp = newDevTreePath;
4741		if (!strncmp
4742		(newDevTreePath, prefix, strlen(prefix)))
4743		ndtp += strlen(prefix);
4744		newLine = addLine(new, config->cfi, LT_DEVTREE,
4745		config->secondaryIndent,
4746		ndtp);
4747		needs &= ~NEED_DEVTREE;
4748		newLine =
4749		addLineTmpl(new, tmplLine, newLine, NULL,
4750		config->cfi);
4751		} else {
4752		/* pass through other lines from the template */
4753		newLine =
4754		addLineTmpl(new, tmplLine, newLine, NULL,
4755		config->cfi);
4756		}
4757		}
4758
4759		} else {
4760		/* don't have a template, so start the entry with the
4761		* appropriate starting line
4762		*/
4763		switch (config->cfi->entryStart) {
4764		case LT_KERNEL:
4765		case LT_KERNEL_EFI:
4766		case LT_KERNEL_16:
4767		if (new->multiboot && config->cfi->mbHyperFirst) {
4768		/* fall through to LT_HYPER */
4769		} else {
4770		newLine = addLine(new, config->cfi,
4771		preferredLineType(LT_KERNEL,
4772		config->
4773		cfi),
4774		config->primaryIndent,
4775		newKernelPath +
4776		strlen(prefix));
4777		needs &= ~NEED_KERNEL;
4778		break;
4779		}
4780
4781		case LT_HYPER:
4782		newLine = addLine(new, config->cfi, LT_HYPER,
4783		config->primaryIndent,
4784		newMBKernel + strlen(prefix));
4785		needs &= ~NEED_MB;
4786		break;
4787
4788		case LT_MENUENTRY:{
4789		char *nkt = malloc(strlen(newKernelTitle) + 3);
4790		strcpy(nkt, "'");
4791		strcat(nkt, newKernelTitle);
4792		strcat(nkt, "'");
4793		newLine =
4794		addLine(new, config->cfi, LT_MENUENTRY,
4795		config->primaryIndent, nkt);
4796		free(nkt);
4797		needs &= ~NEED_TITLE;
4798		needs |= NEED_END;
4799		break;
4800		}
4801		case LT_TITLE:
4802		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4803		char *templabel;
4804		int x = 0, y = 0;
4805
4806		templabel = strdup(newKernelTitle);
4807		while (templabel[x]) {
4808		if (templabel[x] == ' ') {
4809		y = x;
4810		while (templabel[y]) {
4811		templabel[y] =
4812		templabel[y + 1];
4813		y++;
4814		}
4815		}
4816		x++;
4817		}
4818		newLine = addLine(new, config->cfi, LT_TITLE,
4819		config->primaryIndent,
4820		templabel);
4821		free(templabel);
4822		} else {
4823		newLine = addLine(new, config->cfi, LT_TITLE,
4824		config->primaryIndent,
4825		newKernelTitle);
4826		}
4827		needs &= ~NEED_TITLE;
4828		break;
4829
4830		default:
4831		abort();
4832		}
4833		}
4834
4835		struct singleLine *endLine = NULL;
4836		endLine = getLineByType(LT_ENTRY_END, new->lines);
4837		if (endLine) {
4838		removeLine(new, endLine);
4839		needs |= NEED_END;
4840		}
4841
4842		/* add the remainder of the lines, i.e. those that either
4843		* weren't present in the template, or in the case of no template,
4844		* all the lines following the entryStart.
4845		*/
4846		if (needs & NEED_TITLE) {
4847		newLine = addLine(new, config->cfi, LT_TITLE,
4848		config->secondaryIndent, newKernelTitle);
4849		needs &= ~NEED_TITLE;
4850		}
4851		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4852		newLine = addLine(new, config->cfi, LT_HYPER,
4853		config->secondaryIndent,
4854		newMBKernel + strlen(prefix));
4855		needs &= ~NEED_MB;
4856		}
4857		if (needs & NEED_KERNEL) {
4858		newLine = addLine(new, config->cfi,
4859		(new->multiboot
4860		&& getKeywordByType(LT_MBMODULE,
4861		config->cfi))
4862		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4863		config->
4864		cfi),
4865		config->secondaryIndent,
4866		newKernelPath + strlen(prefix));
4867		needs &= ~NEED_KERNEL;
4868		}
4869		if (needs & NEED_MB) {
4870		newLine = addLine(new, config->cfi, LT_HYPER,
4871		config->secondaryIndent,
4872		newMBKernel + strlen(prefix));
4873		needs &= ~NEED_MB;
4874		}
4875		if (needs & NEED_INITRD) {
4876		char *initrdVal;
4877		initrdVal =
4878		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4879		extraInitrds, extraInitrdCount);
4880		newLine =
4881		addLine(new, config->cfi,
4882		(new->multiboot
4883		&& getKeywordByType(LT_MBMODULE, config->cfi))
4884		? LT_MBMODULE : preferredLineType(LT_INITRD,
4885		config->cfi),
4886		config->secondaryIndent, initrdVal);
4887		free(initrdVal);
4888		needs &= ~NEED_INITRD;
4889		}
4890		if (needs & NEED_DEVTREE) {
4891		newLine = addLine(new, config->cfi, LT_DEVTREE,
4892		config->secondaryIndent, newDevTreePath);
4893		needs &= ~NEED_DEVTREE;
4894		}
4895
4896		/* NEEDS_END must be last on bootloaders that need it... */
4897		if (needs & NEED_END) {
4898		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4899		config->secondaryIndent, NULL);
4900		needs &= ~NEED_END;
4901		}
4902
4903		if (needs) {
4904		printf(_("grubby: needs=%d, aborting\n"), needs);
4905		abort();
4906		}
4907
4908		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4909		newMBKernelArgs, NULL)) {
4910		config->isModified = 1;
4911		return 1;
4912		}
4913
4914		return 0;
4915		}
4916
4917		int main(int argc, const char **argv)
4918		{
4919		poptContext optCon;
4920		const char *grubConfig = NULL;
4921		char *outputFile = NULL;
4922		int arg = 0;
4923		int flags = 0;
4924		int badImageOkay = 0;
4925		int configureGrub2 = 0;
4926		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4927		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4928		int configureExtLinux = 0;
4929		int bootloaderProbe = 0;
4930		int extraInitrdCount = 0;
4931		char *updateKernelPath = NULL;
4932		char *newKernelPath = NULL;
4933		char *removeKernelPath = NULL;
4934		char *newKernelArgs = NULL;
4935		char *newKernelInitrd = NULL;
4936		char *newKernelTitle = NULL;
4937		char *newDevTreePath = NULL;
4938		char *newMBKernel = NULL;
4939		char *newMBKernelArgs = NULL;
4940		int newIndex = 0;
4941		char *removeMBKernelArgs = NULL;
4942		char *removeMBKernel = NULL;
4943		char *bootPrefix = NULL;
4944		char *defaultKernel = NULL;
4945		char *removeArgs = NULL;
4946		char *kernelInfo = NULL;
4947		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4948		char *envPath = NULL;
4949		const char *chptr = NULL;
4950		struct configFileInfo *cfi = NULL;
4951		struct grubConfig *config;
4952		struct singleEntry *template = NULL;
4953		int copyDefault = 0, makeDefault = 0;
4954		int displayDefault = 0;
4955		int displayDefaultIndex = 0;
4956		int displayDefaultTitle = 0;
4957		int defaultIndex = -1;
4958		struct poptOption options[] = {
4959		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4960		_("add an entry for the specified kernel"), _("kernel-path")},
4961		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4962		_("add an entry for the specified multiboot kernel"), NULL},
4963		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4964		_("default arguments for the new kernel or new arguments for "
4965		"kernel being updated"), _("args")},
4966		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4967		_("default arguments for the new multiboot kernel or "
4968		"new arguments for multiboot kernel being updated"), NULL},
4969		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4970		_
4971		("don't sanity check images in boot entries (for testing only)"),
4972		NULL},
4973		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4974		_
4975		("filesystem which contains /boot directory (for testing only)"),
4976		_("bootfs")},
4977		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4978		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4979		_("check which bootloader is installed on boot sector")},
4980		#endif
4981		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4982		_("path to grub config file to update (\"-\" for stdin)"),
4983		_("path")},
4984		{"copy-default", 0, 0, &copyDefault, 0,
4985		_("use the default boot entry as a template for the new entry "
4986		"being added; if the default is not a linux image, or if "
4987		"the kernel referenced by the default image does not exist, "
4988		"the first linux entry whose kernel does exist is used as the "
4989		"template"), NULL},
4990		{"debug", 0, 0, &debug, 0,
4991		_("print debugging information for failures")},
4992		{"default-kernel", 0, 0, &displayDefault, 0,
4993		_("display the path of the default kernel")},
4994		{"default-index", 0, 0, &displayDefaultIndex, 0,
4995		_("display the index of the default kernel")},
4996		{"default-title", 0, 0, &displayDefaultTitle, 0,
4997		_("display the title of the default kernel")},
4998		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4999		_("device tree file for new stanza"), _("dtb-path")},
5000		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5001		_("device tree directory for new stanza"), _("dtb-path")},
5002		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
5003		_("configure elilo bootloader")},
5004		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
5005		_("force grub2 stanzas to use efi")},
5006		{"env", 0, POPT_ARG_STRING, &envPath, 0,
5007		_("path for environment data"),
5008		_("path")},
5009		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
5010		_("configure extlinux bootloader (from syslinux)")},
5011		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
5012		_("configure grub bootloader")},
5013		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
5014		_("configure grub2 bootloader")},
5015		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
5016		_("display boot information for specified kernel"),
5017		_("kernel-path")},
5018		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
5019		_("initrd image for the new kernel"), _("initrd-path")},
5020		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
5021		_
5022		("auxiliary initrd image for things other than the new kernel"),
5023		_("initrd-path")},
5024		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
5025		_("configure lilo bootloader")},
5026		{"make-default", 0, 0, &makeDefault, 0,
5027		_("make the newly added entry the default boot entry"), NULL},
5028		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
5029		_("path to output updated config file (\"-\" for stdout)"),
5030		_("path")},
5031		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
5032		_("remove kernel arguments"), NULL},
5033		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
5034		_("remove multiboot kernel arguments"), NULL},
5035		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
5036		_("remove all entries for the specified kernel"),
5037		_("kernel-path")},
5038		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
5039		_("remove all entries for the specified multiboot kernel"),
5040		NULL},
5041		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
5042		_("make the first entry referencing the specified kernel "
5043		"the default"), _("kernel-path")},
5044		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5045		_("make the given entry index the default entry"),
5046		_("entry-index")},
5047		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5048		_("use the given index when creating a new entry"),
5049		_("entry-index")},
5050		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5051		_("configure silo bootloader")},
5052		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5053		_("title to use for the new kernel entry"), _("entry-title")},
5054		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5055		_("updated information for the specified kernel"),
5056		_("kernel-path")},
5057		{"version", 'v', 0, NULL, 'v',
5058		_("print the version of this program and exit"), NULL},
5059		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5060		_("configure yaboot bootloader")},
5061		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5062		_("configure zipl bootloader")},
5063		POPT_AUTOHELP {0, 0, 0, 0, 0}
5064		};
5065
5066		useextlinuxmenu = 0;
5067
5068		int i = 0;
5069		for (int j = 1; j < argc; j++)
5070		i += strlen(argv[j]) + 1;
5071		saved_command_line = malloc(i);
5072		if (!saved_command_line) {
5073		fprintf(stderr, "grubby: %m\n");
5074		exit(1);
5075		}
5076		saved_command_line[0] = '\0';
5077		for (int j = 1; j < argc; j++) {
5078		strcat(saved_command_line, argv[j]);
5079		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5080		}
5081
5082		optCon = poptGetContext("grubby", argc, argv, options, 0);
5083		poptReadDefaultConfig(optCon, 1);
5084
5085		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5086		switch (arg) {
5087		case 'v':
5088		printf("grubby version %s\n", VERSION);
5089		exit(0);
5090		break;
5091		case 'i':
5092		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5093		extraInitrds[extraInitrdCount++] =
5094		strdup(poptGetOptArg(optCon));
5095		} else {
5096		fprintf(stderr,
5097		_
5098		("grubby: extra initrd maximum is %d\n"),
5099		extraInitrdCount);
5100		return 1;
5101		}
5102		break;
5103		}
5104		}
5105
5106		if (arg < -1) {
5107		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5108		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5109		poptStrerror(arg));
5110		return 1;
5111		}
5112
5113		if ((chptr = poptGetArg(optCon))) {
5114		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5115		return 1;
5116		}
5117
5118		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5119		configureYaboot + configureSilo + configureZipl +
5120		configureExtLinux) > 1) {
5121		fprintf(stderr,
5122		_("grubby: cannot specify multiple bootloaders\n"));
5123		return 1;
5124		} else if (bootloaderProbe && grubConfig) {
5125		fprintf(stderr,
5126		_
5127		("grubby: cannot specify config file with --bootloader-probe\n"));
5128		return 1;
5129		} else if (configureGrub2) {
5130		cfi = &grub2ConfigType;
5131		if (envPath)
5132		cfi->envFile = envPath;
5133		} else if (configureLilo) {
5134		cfi = &liloConfigType;
5135		} else if (configureGrub) {
5136		cfi = &grubConfigType;
5137		} else if (configureELilo) {
5138		cfi = &eliloConfigType;
5139		} else if (configureYaboot) {
5140		cfi = &yabootConfigType;
5141		} else if (configureSilo) {
5142		cfi = &siloConfigType;
5143		} else if (configureZipl) {
5144		cfi = &ziplConfigType;
5145		} else if (configureExtLinux) {
5146		cfi = &extlinuxConfigType;
5147		useextlinuxmenu = 1;
5148		}
5149
5150		if (!cfi) {
5151		if (grub2FindConfig(&grub2ConfigType)) {
5152		cfi = &grub2ConfigType;
5153		configureGrub2 = 1;
5154		if (envPath)
5155		cfi->envFile = envPath;
5156		} else {
5157		#ifdef __ia64__
5158		cfi = &eliloConfigType;
5159		configureLilo = 1;
5160		#elif defined(__powerpc__)
5161		cfi = &yabootConfigType;
5162		configureYaboot = 1;
5163		#elif defined(__sparc__)
5164		cfi = &siloConfigType;
5165		configureSilo = 1;
5166		#elif defined(__s390__) || defined(__s390x__)
5167		cfi = &ziplConfigType;
5168		configureZipl = 1;
5169		#else
5170		cfi = &grubConfigType;
5171		configureGrub = 1;
5172		#endif
5173		}
5174		}
5175
5176		if (!grubConfig) {
5177		if (cfi->findConfig)
5178		grubConfig = cfi->findConfig(cfi);
5179		if (!grubConfig)
5180		grubConfig = cfi->defaultConfig;
5181		}
5182
5183		if (bootloaderProbe && (displayDefault || kernelInfo ||
5184		newKernelPath || removeKernelPath || makeDefault
5185		|| defaultKernel || displayDefaultIndex
5186		|| displayDefaultTitle
5187		|| (defaultIndex >= 0))) {
5188		fprintf(stderr,
5189		_("grubby: --bootloader-probe may not be used with "
5190	"specified option"));	"specified option"));
5191	return 1;	return 1;
5192	}	}
5193
5194	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5195	removeKernelPath)) {	removeKernelPath)) {
5196	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5197	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5198	return 1;	return 1;
5199	}	}
5200
5201	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5202	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5203	return 1;	return 1;
5204	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5205	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5206	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5207	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5208	return 1;	return 1;
5209	}	}
5210
5211	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5212	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5213	"not be used together"));	"not be used together"));
5214	return 1;	return 1;
5215	}	}
5216
5217	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5218	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5219		"may not be used together\n"));
5220		return 1;
5221		} else if (defaultKernel && removeKernelPath &&
5222		!strcmp(defaultKernel, removeKernelPath)) {
5223		fprintf(stderr,
5224		_("grubby: cannot make removed kernel the default\n"));
5225		return 1;
5226		} else if (defaultKernel && newKernelPath &&
5227		!strcmp(defaultKernel, newKernelPath)) {
5228		makeDefault = 1;
5229		defaultKernel = NULL;
5230		} else if (defaultKernel && (defaultIndex >= 0)) {
5231		fprintf(stderr,
5232		_("grubby: --set-default and --set-default-index "
5233	"may not be used together\n"));	"may not be used together\n"));
5234	return 1;	return 1;
5235	} 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;
	}
5236
5237	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5238	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5239	"is used\n"));	_("grubby: output file must be specified if stdin "
5240	return 1;	"is used\n"));
5241	}	return 1;
5242		}
5243
5244	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5245	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5246	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5247	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5248	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5249	}	return 1;
5250		}
5251
5252	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5253
5254	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5255	if (!bootPrefix) {	if (!bootPrefix) {
5256	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5257	if (!bootPrefix) return 1;	if (!bootPrefix)
5258	} else {	return 1;
5259	/* this shouldn't end with a / */	} else {
5260	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5261	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5262		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5263		}
5264		} else {
5265		bootPrefix = "";
5266	}	}
	} else {
	bootPrefix = "";
	}
5267
5268	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5269	extraInitrdCount > 0) {	fprintf(stderr,
5270	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5271	return 1;	cfi->defaultConfig);
5272	}	return 1;
5273		}
5274
5275	if (bootloaderProbe) {	if (bootloaderProbe) {
5276	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5277	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5278
5279	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5280	if (grub2config) {	if (grub2config) {
5281	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5282	if (!gconfig)	if (!gconfig)
5283	gr2c = 1;	gr2c = 1;
5284	else	else
5285	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5286	}	}
	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");
5287
5288	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5289	}	if (!access(grubconfig, F_OK)) {
5290		gconfig = readConfig(grubconfig, &grubConfigType);
5291		if (!gconfig)
5292		grc = 1;
5293		else
5294		grc = checkForGrub(gconfig);
5295		}
5296
5297	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5298	if (!config) return 1;	lconfig =
5299		readConfig(liloConfigType.defaultConfig,
5300		&liloConfigType);
5301		if (!lconfig)
5302		lrc = 1;
5303		else
5304		lrc = checkForLilo(lconfig);
5305		}
5306
5307	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5308	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5309	struct singleEntry * entry;	&eliloConfigType);
5310	char * rootspec;	if (!econfig)
5311		erc = 1;
5312	if (config->defaultImage == -1) return 0;	else
5313	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5314	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));
5315
5316	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5317		lconfig =
5318		readConfig(extlinuxConfigType.defaultConfig,
5319		&extlinuxConfigType);
5320		if (!lconfig)
5321		extrc = 1;
5322		else
5323		extrc = checkForExtLinux(lconfig);
5324		}
5325
5326		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5327		yconfig = readConfig(yabootConfigType.defaultConfig,
5328		&yabootConfigType);
5329		if (!yconfig)
5330		yrc = 1;
5331		else
5332		yrc = checkForYaboot(yconfig);
5333		}
5334
5335		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5336		|| erc == 1)
5337		return 1;
5338
5339		if (lrc == 2)
5340		printf("lilo\n");
5341		if (gr2c == 2)
5342		printf("grub2\n");
5343		if (grc == 2)
5344		printf("grub\n");
5345		if (extrc == 2)
5346		printf("extlinux\n");
5347		if (yrc == 2)
5348		printf("yaboot\n");
5349		if (erc == 2)
5350		printf("elilo\n");
5351
5352		return 0;
5353		}
5354
5355	} else if (displayDefaultTitle) {	if (grubConfig == NULL) {
5356	struct singleLine * line;	printf("Could not find bootloader configuration file.\n");
5357	struct singleEntry * entry;	exit(1);
	if (config->defaultImage == -1) return 0;
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
	} else {
	char * title;
	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5358	}	}
	return 0;
5359
5360	} else if (displayDefaultIndex) {	config = readConfig(grubConfig, cfi);
5361	if (config->defaultImage == -1) return 0;	if (!config)
5362	printf("%i\n", config->defaultImage);	return 1;
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5363
5364	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5365	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5366	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5367	bootPrefix, flags);	size_t rs;
5368	setFallbackImage(config, newKernelPath != NULL);
5369	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5370	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5371	if (updateKernelPath && newKernelInitrd) {	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5372	if (updateInitrd(config, updateKernelPath, bootPrefix,	cfi->defaultIsSaved)
5373	newKernelInitrd)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5374	}	entry = findEntryByIndex(config, config->defaultImage);
5375	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (!entry)
5376	newKernelTitle, newKernelArgs, newKernelInitrd,	return 0;
5377	extraInitrds, extraInitrdCount,	if (!suitableImage(entry, bootPrefix, 0, flags))
5378	newMBKernel, newMBKernelArgs)) return 1;	return 0;
5379
5380		line =
5381	if (numEntries(config) == 0) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5382	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	LT_KERNEL_16, entry->lines);
5383	"Not writing out new config.\n"));	if (!line)
5384	return 1;	return 0;
5385	}
5386		rs = getRootSpecifier(line->elements[1].item);
5387		printf("%s%s\n", bootPrefix, line->elements[1].item + rs);
5388
5389		return 0;
5390
5391		} else if (displayDefaultTitle) {
5392		struct singleLine *line;
5393		struct singleEntry *entry;
5394
5395		if (config->defaultImage == NO_DEFAULT_ENTRY)
5396		return 0;
5397		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5398		cfi->defaultIsSaved)
5399		config->defaultImage = FIRST_ENTRY_INDEX;
5400		entry = findEntryByIndex(config, config->defaultImage);
5401		if (!entry)
5402		return 0;
5403
5404		if (!configureGrub2) {
5405		char *title;
5406		line = getLineByType(LT_TITLE, entry->lines);
5407		if (!line)
5408		return 0;
5409		title = extractTitle(config, line);
5410		if (!title)
5411		return 0;
5412		printf("%s\n", title);
5413		free(title);
5414		} else {
5415		char *title;
5416
5417		dbgPrintf
5418		("This is GRUB2, default title is embeded in menuentry\n");
5419		line = getLineByType(LT_MENUENTRY, entry->lines);
5420		if (!line)
5421		return 0;
5422		title = grub2ExtractTitle(line);
5423		if (title)
5424		printf("%s\n", title);
5425		}
5426		return 0;
5427
5428		} else if (displayDefaultIndex) {
5429		if (config->defaultImage == NO_DEFAULT_ENTRY)
5430		return 0;
5431		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5432		cfi->defaultIsSaved)
5433		config->defaultImage = FIRST_ENTRY_INDEX;
5434		printf("%i\n", config->defaultImage);
5435		return 0;
5436
5437		} else if (kernelInfo)
5438		return displayInfo(config, kernelInfo, bootPrefix);
5439
5440		if (copyDefault) {
5441		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5442		if (!template)
5443		return 1;
5444		}
5445
5446		markRemovedImage(config, removeKernelPath, bootPrefix);
5447		markRemovedImage(config, removeMBKernel, bootPrefix);
5448		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5449		makeDefault, bootPrefix, flags, defaultIndex,
5450		newIndex);
5451		setFallbackImage(config, newKernelPath != NULL);
5452		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5453		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5454		return 1;
5455		if (updateKernelPath && newKernelInitrd) {
5456		if (newMBKernel) {
5457		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5458		bootPrefix, newKernelInitrd,
5459		newKernelTitle))
5460		return 1;
5461		} else {
5462		if (updateInitrd(config, updateKernelPath, bootPrefix,
5463		newKernelInitrd, newKernelTitle))
5464		return 1;
5465		}
5466		}
5467		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5468		newKernelTitle, newKernelArgs, newKernelInitrd,
5469		(const char **)extraInitrds, extraInitrdCount,
5470		newMBKernel, newMBKernelArgs, newDevTreePath,
5471		newIndex))
5472		return 1;
5473
5474		if (numEntries(config) == 0) {
5475		fprintf(stderr,
5476		_("grubby: doing this would leave no kernel entries. "
5477		"Not writing out new config.\n"));
5478		return 1;
5479		}
5480
5481	if (!outputFile)	if (!outputFile)
5482	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5483
5484	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5485	}	}

---

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Legend: Removed from v.1751   changed lines   Added in v.3138