Diff of /trunk/grubby/grubby.c

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	trunk/mkinitrd-magellan/grubby/grubby.c revision 926 by niro, Wed Oct 28 13:29:38 2009 UTC	trunk/grubby/grubby.c revision 3137 by niro, Tue Jul 7 11:10:21 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
42	#define DEBUG 0	#define DEBUG 0
43		#endif
44
45	#if DEBUG	#if DEBUG
46	#define dbgPrintf(format, args...) fprintf(stderr, format , ## args)	#define dbgPrintf(format, args...) fprintf(stderr, format , ## args)
#	Line 44	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51		int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
55	#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */	#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */
56	#define CODE_SEG_SIZE  128 /* code segment checked by --bootloader-probe */	#define CODE_SEG_SIZE  128 /* code segment checked by --bootloader-probe */
57
58		#define NOOP_OPCODE 0x90
59		#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_UNKNOWN    = 1 << 15,	LT_GENERIC = 1 << 14,
94		LT_ECHO = 1 << 16,
95		LT_MENUENTRY = 1 << 17,
96		LT_ENTRY_END = 1 << 18,
97		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 99  struct singleEntry {	Line 128  struct singleEntry {
128	#define NEED_TITLE   (1 << 2)	#define NEED_TITLE   (1 << 2)
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)
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
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;
150
151		typedef const char *(*findConfigFunc) (struct configFileInfo *);
152		typedef const int (*writeLineFunc) (struct configFileInfo *,
153		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	struct keywordTypes * keywords;	findConfigFunc findConfig;
160	int defaultIsIndex;	writeLineFunc writeLine;
161	int defaultSupportSaved;	getEnvFunc getEnv;
162	enum lineType_e entrySeparator;	setEnvFunc setEnv;
163	int needsBootPrefix;	struct keywordTypes *keywords;
164	int argsInQuotes;	int caseInsensitive;
165	int maxTitleLength;	int defaultIsIndex;
166	int titleBracketed;	int defaultIsVariable;
167	int mbHyperFirst;	int defaultSupportSaved;
168	int mbInitRdIsModule;	int defaultIsSaved;
169	int mbConcatArgs;	int defaultIsUnquoted;
170	int mbAllowExtraInitRds;	enum lineType_e entryStart;
171		enum lineType_e entryEnd;
172		int needsBootPrefix;
173		int argsInQuotes;
174		int maxTitleLength;
175		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)
197		{
198		static const char *configFiles[] = {
199		"/boot/grub/grub.conf",
200		"/boot/grub/menu.lst",
201		"/etc/grub.conf",
202		NULL
203		};
204		static int i = -1;
205
206		if (i == -1) {
207		for (i = 0; configFiles[i] != NULL; i++) {
208		dbgPrintf("Checking \"%s\": ", configFiles[i]);
209		if (!access(configFiles[i], R_OK)) {
210		dbgPrintf("found\n");
211		return configFiles[i];
212		}
213		dbgPrintf("not found\n");
214		}
215		}
216		return configFiles[i];
217		}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	"/boot/grub/grub.conf",    /* defaultConfig */	.findConfig = grubFindConfig,
221	grubKeywords,    /* keywords */	.keywords = grubKeywords,
222	1,    /* defaultIsIndex */	.defaultIsIndex = 1,
223	1,    /* defaultSupportSaved */	.defaultSupportSaved = 1,
224	LT_TITLE,    /* entrySeparator */	.entryStart = LT_TITLE,
225	1,    /* needsBootPrefix */	.needsBootPrefix = 1,
226	0,    /* argsInQuotes */	.mbHyperFirst = 1,
227	0,    /* maxTitleLength */	.mbInitRdIsModule = 1,
228	0,                                      /* titleBracketed */	.mbAllowExtraInitRds = 1,
229	1,                                      /* mbHyperFirst */	.titlePosition = 1,
230	1,                                      /* mbInitRdIsModule */	};
231	0,                                      /* mbConcatArgs */
232	1,                                      /* mbAllowExtraInitRds */	struct keywordTypes grub2Keywords[] = {
233		{"menuentry", LT_MENUENTRY, ' '},
234		{"}", LT_ENTRY_END, ' '},
235		{"echo", LT_ECHO, ' '},
236		{"set", LT_SET_VARIABLE, ' ', '='},
237		{"root", LT_BOOTROOT, ' '},
238		{"default", LT_DEFAULT, ' '},
239		{"fallback", LT_FALLBACK, ' '},
240		{"linux", LT_KERNEL, ' '},
241		{"linuxefi", LT_KERNEL_EFI, ' '},
242		{"linux16", LT_KERNEL_16, ' '},
243		{"initrd", LT_INITRD, ' ', ' '},
244		{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245		{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{NULL, 0, 0},
250		};
251
252		const char *grub2FindConfig(struct configFileInfo *cfi)
253		{
254		static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256		"/boot/grub/grub.cfg",
257		"/etc/grub2-efi.cfg",
258		"/etc/grub2.cfg",
259		"/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");
290		return grub_cfg;
291		}
292
293		dbgPrintf("not found\n");
294		return configFiles[i];
295		}
296
297		/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298		static char *grub2GetEnv(struct configFileInfo *info, char *name)
299		{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396		}
397
398		int sizeOfSingleLine(struct singleLine *line)
399		{
400		int count = 0;
401
402		for (int i = 0; i < line->numElements; i++) {
403		int indentSize = 0;
404
405		count = count + strlen(line->elements[i].item);
406
407		indentSize = strlen(line->elements[i].indent);
408		if (indentSize > 0)
409		count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415		/* room for trailing terminator */
416		count = count + 1;
417
418		return count;
419		}
420
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		char *grub2ExtractTitle(struct singleLine *line)
441		{
442		char *current;
443		char *current_indent;
444		int current_len;
445		int current_indent_len;
446		int i;
447
448		/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452		i = 1;
453		current = line->elements[i].item;
454		current_len = strlen(current);
455
456		/* if second word is quoted, strip the quotes and return single word */
457		if (isquote(*current) && isquote(current[current_len - 1])) {
458		char *tmp;
459
460		tmp = strdup(current + 1);
461		if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496		}
497		return result;
498		}
499
500		struct configFileInfo grub2ConfigType = {
501		.findConfig = grub2FindConfig,
502		.getEnv = grub2GetEnv,
503		.setEnv = grub2SetEnv,
504		.keywords = grub2Keywords,
505		.defaultIsIndex = 1,
506		.defaultSupportSaved = 1,
507		.defaultIsVariable = 1,
508		.entryStart = LT_MENUENTRY,
509		.entryEnd = LT_ENTRY_END,
510		.titlePosition = 1,
511		.needsBootPrefix = 1,
512		.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	"/boot/efi/EFI/redhat/elilo.conf",    /* defaultConfig */	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	eliloKeywords,    /* keywords */	.keywords = eliloKeywords,
617	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
618	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
619	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
620	1,                    /* needsBootPrefix */	.mbConcatArgs = 1,
621	1,    /* argsInQuotes */	.titlePosition = 1,
	0,    /* maxTitleLength */
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	1,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	"/etc/lilo.conf",    /* defaultConfig */	.defaultConfig = "/etc/lilo.conf",
626	liloKeywords,    /* keywords */	.keywords = liloKeywords,
627	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
628	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
629	LT_KERNEL,    /* entrySeparator */	.maxTitleLength = 15,
630	0,    /* needsBootPrefix */	.titlePosition = 1,
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	"/etc/yaboot.conf",    /* defaultConfig */	.defaultConfig = "/etc/yaboot.conf",
635	yabootKeywords,    /* keywords */	.keywords = yabootKeywords,
636	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
637	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
638	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
639	1,    /* needsBootPrefix */	.maxTitleLength = 15,
640	1,    /* argsInQuotes */	.mbAllowExtraInitRds = 1,
641	15,    /* maxTitleLength */	.titlePosition = 1,
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	1,                                      /* mbAllowExtraInitRds */
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	"/etc/silo.conf",    /* defaultConfig */	.defaultConfig = "/etc/silo.conf",
646	siloKeywords,    /* keywords */	.keywords = siloKeywords,
647	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
648	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
649	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
650	1,    /* needsBootPrefix */	.maxTitleLength = 15,
651	1,    /* argsInQuotes */	.titlePosition = 1,
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	"/etc/zipl.conf",    /* defaultConfig */	.defaultConfig = "/etc/zipl.conf",
656	ziplKeywords,    /* keywords */	.keywords = ziplKeywords,
657	0,    /* defaultIsIndex */	.entryStart = LT_TITLE,
658	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
659	LT_TITLE,    /* entrySeparator */	.titleBracketed = 1,
	0,    /* needsBootPrefix */
	1,    /* argsInQuotes */
	0,    /* maxTitleLength */
	1,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	"/boot/extlinux/extlinux.conf",         /* defaultConfig */	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	extlinuxKeywords,                       /* keywords */	.keywords = extlinuxKeywords,
665	0,                                      /* defaultIsIndex */	.caseInsensitive = 1,
666	0,                                      /* defaultSupportSaved */	.entryStart = LT_TITLE,
667	LT_TITLE,                               /* entrySeparator */	.needsBootPrefix = 1,
668	1,                                      /* needsBootPrefix */	.maxTitleLength = 255,
669	0,                                      /* argsInQuotes */	.mbAllowExtraInitRds = 1,
670	255,                                    /* maxTitleLength */	.defaultIsUnquoted = 1,
671	0,                                      /* titleBracketed */	.titlePosition = 1,
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	1,                                      /* mbAllowExtraInitRds */
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	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	};
687	struct singleEntry * findEntryByPath(struct grubConfig * cfg,
688	const char * path, const char * prefix,	blkid_cache blkid;
	int * index);
	static int readFile(int fd, char ** bufPtr);
	static void lineInit(struct singleLine * line);
	struct singleLine * lineDup(struct singleLine * line);
	static void lineFree(struct singleLine * line);
	static int lineWrite(FILE * out, struct singleLine * line,
	struct configFileInfo * cfi);
	static int getNextLine(char ** bufPtr, struct singleLine * line,
	struct configFileInfo * cfi);
	static char * getRootSpecifier(char * str);
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi);
	static void removeElement(struct singleLine * line, int removeHere);
	static struct keywordTypes * getKeywordByType(enum lineType_e type,
	struct configFileInfo * cfi);
	static enum lineType_e getTypeByKeyword(char * keyword,
	struct configFileInfo * cfi);
	static struct singleLine * getLineByType(enum lineType_e type,
	struct singleLine * line);
	static int checkForExtLinux(struct grubConfig * config);
	struct singleLine * addLineTmpl(struct singleEntry * entry,
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi);
	struct singleLine *  addLine(struct singleEntry * entry,
	struct configFileInfo * cfi,
	enum lineType_e type, char * defaultIndent,
	const char * val);
689
690	static char * sdupprintf(const char *format, ...)	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691		struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692		const char *path, const char *prefix,
693		int *index);
694		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695		int *index);
696		static int readFile(int fd, char **bufPtr);
697		static void lineInit(struct singleLine *line);
698		struct singleLine *lineDup(struct singleLine *line);
699		static void lineFree(struct singleLine *line);
700		static int lineWrite(FILE * out, struct singleLine *line,
701		struct configFileInfo *cfi);
702		static int getNextLine(char **bufPtr, struct singleLine *line,
703		struct configFileInfo *cfi);
704		static char *getRootSpecifier(char *str);
705		static void requote(struct singleLine *line, struct configFileInfo *cfi);
706		static void insertElement(struct singleLine *line,
707		const char *item, int insertHere,
708		struct configFileInfo *cfi);
709		static void removeElement(struct singleLine *line, int removeHere);
710		static struct keywordTypes *getKeywordByType(enum lineType_e type,
711		struct configFileInfo *cfi);
712		static enum lineType_e getTypeByKeyword(char *keyword,
713		struct configFileInfo *cfi);
714		static struct singleLine *getLineByType(enum lineType_e type,
715		struct singleLine *line);
716		static int checkForExtLinux(struct grubConfig *config);
717		struct singleLine *addLineTmpl(struct singleEntry *entry,
718		struct singleLine *tmplLine,
719		struct singleLine *prevLine,
720		const char *val, struct configFileInfo *cfi);
721		struct singleLine *addLine(struct singleEntry *entry,
722		struct configFileInfo *cfi,
723		enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726		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 * getpathbyspec(char *device) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	static blkid_cache blkid;	struct configFileInfo *cfi)
789		{
790	if (!blkid)	if (isEfi && cfi == &grub2ConfigType) {
791	blkid_get_cache(&blkid, NULL);	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	return blkid_get_devname(blkid, device, NULL);	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815		struct configFileInfo *cfi)
816		{
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	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct configFileInfo * cfi) {	{
826	struct keywordTypes * kw;	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	for (kw = cfi->keywords; kw->key; kw++) {	if (kt)
828	if (!strcmp(keyword, kw->key))	return kt->key;
829	return kw->type;	return "unknown";
	}
	return LT_UNKNOWN;
830	}	}
831
832	static struct singleLine * getLineByType(enum lineType_e type,	static char *getpathbyspec(char *device)
833	struct singleLine * line) {	{
834	dbgPrintf("getLineByType(%d): ", type);	if (!blkid)
835	for (; line; line = line->next) {	blkid_get_cache(&blkid, NULL);
836	dbgPrintf("%d:%s ", line->type,
837	line->numElements ? line->elements[0].item : "(empty)");	return blkid_get_devname(blkid, device, NULL);
	if (line->type & type) break;
	}
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
838	}	}
839
840	static int isBracketedTitle(struct singleLine * line) {	static char *getuuidbydev(char *device)
841	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
842	int len = strlen(line->elements[0].item);	if (!blkid)
843	if (*(line->elements[0].item + len - 1) == ']') {	blkid_get_cache(&blkid, NULL);
844	/* FIXME: this is a hack... */
845	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return blkid_get_tag_value(blkid, "UUID", device);
	return 1;
	}
	}
	}
	return 0;
846	}	}
847
848	static int isEntrySeparator(struct singleLine * line,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	return line->type == cfi->entrySeparator || line->type == LT_OTHER ||	{
851	(cfi->titleBracketed && isBracketedTitle(line));	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852		if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853		return kw->type;
854		}
855		return LT_UNKNOWN;
856	}	}
857
858	/* extract the title from within brackets (for zipl) */	static struct singleLine *getLineByType(enum lineType_e type,
859	static char * extractTitle(struct singleLine * line) {	struct singleLine *line)
860	/* bracketed title... let's extract it (leaks a byte) */	{
861	char * title;	dbgPrintf("getLineByType(%d): ", type);
862	title = strdup(line->elements[0].item);	for (; line; line = line->next) {
863	title++;	dbgPrintf("%d:%s ", line->type,
864	*(title + strlen(title) - 1) = '\0';	line->numElements ? line->elements[0].
865	return title;	item : "(empty)");
866	}	if (line->type & type)
867		break;
868	static int readFile(int fd, char ** bufPtr) {	}
869	int alloced = 0, size = 0, i = 0;	dbgPrintf(line ? "\n" : " (failed)\n");
870	char * buf = NULL;	return line;
871		}
	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;
	}
872
873	buf = realloc(buf, size + 2);	static int isBracketedTitle(struct singleLine *line)
874	if (size == 0)	{
875	buf[size++] = '\n';	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	else	int len = strlen(line->elements[0].item);
877	if (buf[size - 1] != '\n')	if (*(line->elements[0].item + len - 1) == ']') {
878	buf[size++] = '\n';	/* FIXME: this is a hack... */
879	buf[size] = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885		}
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	line->type = LT_WHITESPACE;	element->indent = strndup(start, chptr - start);
1105	line->numElements = 0;	start = chptr;
	}
	} else {
	struct keywordTypes *kw;
1106
1107	kw = getKeywordByType(line->type, cfi);	line->numElements++;
1108		first = 0;
1109		}
1110
1111	/* space isn't the only separator, we need to split	if (!line->numElements)
1112	* elements up more	line->type = LT_WHITESPACE;
1113	*/	else {
1114	if (!isspace(kw->separatorChar)) {	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	int i;	if (line->type == LT_UNKNOWN) {
1116	char indent[2] = "";	/* zipl does [title] instead of something reasonable
1117	indent[0] = kw->separatorChar;	* like all the other boot loaders.  kind of ugly */
1118	for (i = 1; i < line->numElements; i++) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	char *p;	line->type = LT_TITLE;
	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];
1120	}	}
	line->numElements += numNewElements;
	p = line->elements[i].item;
	while (*p != '\0') {
1121
1122	while (*p != kw->separatorChar && *p != '\0') p++;	/* this is awkward, but we need to be able to handle
1123	if (*p == '\0') {	* keywords that begin with a # (specifically for
1124	break;	* #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	free(line->elements[i].indent);	line->type = LT_WHITESPACE;
1151	line->elements[i].indent = strdup(indent);	line->numElements = 0;
	*p++ = '\0';
	i++;
	line->elements[i].item = strdup(p);
	line->elements[i].indent = strdup("");
	p = line->elements[i].item;
1152	}	}
1153	}	} else if (line->type == LT_INITRD) {
1154	}	struct keywordTypes *kw;
	}
	}
1155
1156	return 0;	kw = getKeywordByType(line->type, cfi);
	}
1157
1158	static struct grubConfig * readConfig(const char * inName,	/* space isn't the only separator, we need to split
1159	struct configFileInfo * cfi) {	* elements up more
1160	int in;	*/
1161	char * incoming = NULL, * head;	if (!isspace(kw->separatorChar)) {
1162	int rc;	char indent[2] = "";
1163	int sawEntry = 0;	indent[0] = kw->separatorChar;
1164	int movedLine = 0;	for (int i = 1; i < line->numElements; i++) {
1165	struct grubConfig * cfg;	char *p;
1166	struct singleLine * last = NULL, * line, * defaultLine = NULL;	int numNewElements;
1167	char * end;
1168	struct singleEntry * entry = NULL;	numNewElements = 0;
1169	int i, len;	p = line->elements[i].item;
1170	char * buf;	while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172	if (!strcmp(inName, "-")) {	numNewElements++;
1173	in = 0;	p++;
1174	} else {	}
1175	if ((in = open(inName, O_RDONLY)) < 0) {	if (line->numElements +
1176	fprintf(stderr, _("error opening %s for read: %s\n"),	numNewElements >= elementsAlloced) {
1177	inName, strerror(errno));	elementsAlloced +=
1178	return NULL;	numNewElements + 5;
1179	}	line->elements =
1180	}	realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	rc = readFile(in, &incoming);	for (int j = line->numElements; j > i;
1187	close(in);	j--) {
1188	if (rc) return NULL;	line->elements[j +
1189		numNewElements] =
1190	head = incoming;	line->elements[j];
1191	cfg = malloc(sizeof(*cfg));	}
1192	cfg->primaryIndent = strdup("");	line->numElements += numNewElements;
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1193
1194	if (getNextLine(&head, line, cfi)) {	p = line->elements[i].item;
1195	free(line);	while (*p != '\0') {
	/* XXX memory leak of everything in cfg */
	return NULL;
	}
	if (!sawEntry && line->numElements) {
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntrySeparator(line, cfi)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1196
1197	entry->skip = 0;	while (*p != kw->separatorChar
1198	entry->multiboot = 0;	&& *p != '\0')
1199	entry->lines = NULL;	p++;
1200	entry->next = NULL;	if (*p == '\0') {
1201	}	break;
1202		}
1203	if (line->type == LT_DEFAULT && line->numElements == 2) {
1204	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	line->elements[i + 1].indent =
1205	defaultLine = line;	line->elements[i].indent;
1206		line->elements[i].indent =
1207	} else if (line->type == LT_KERNEL) {	strdup(indent);
1208	/* if by some freak chance this is multiboot and the "module"	*p++ = '\0';
1209	* lines came earlier in the template, make sure to use LT_HYPER	i++;
1210	* instead of LT_KERNEL now	line->elements[i].item =
1211	*/	strdup(p);
1212	if (entry->multiboot)	}
1213	line->type = LT_HYPER;	}
1214		}
1215	} else if (line->type == LT_MBMODULE) {	} else if (line->type == LT_SET_VARIABLE) {
1216	/* go back and fix the LT_KERNEL line to indicate LT_HYPER	/* and if it's a "set blah=" we need to split it
1217	* instead, now that we know this is a multiboot entry.	* yet a third way to avoid rhbz# XXX FIXME :/
1218	* This only applies to grub, but that's the only place we	*/
1219	* should find LT_MBMODULE lines anyway.	char *eq;
1220	*/	int l;
1221	struct singleLine * l;	int numElements = line->numElements;
1222	for (l = entry->lines; l; l = l->next) {	struct lineElement *newElements;
1223	if (l->type == LT_HYPER)	eq = strchr(line->elements[1].item, '=');
1224	break;	if (!eq)
1225	else if (l->type == LT_KERNEL) {	return 0;
1226	l->type = LT_HYPER;	l = eq - line->elements[1].item;
1227	break;	if (eq[1] != 0)
1228	}	numElements++;
1229	}	newElements = calloc(numElements,sizeof (*newElements));
1230	entry->multiboot = 1;	memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232	} else if (line->type == LT_HYPER) {	newElements[1].item =
1233	entry->multiboot = 1;	strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235	} else if (line->type == LT_FALLBACK && line->numElements == 2) {	*(eq++) = '\0';
1236	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);	newElements[2].item = strdup(eq);
1237	if (*end) cfg->fallbackImage = -1;	free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239	} else if (line->type == LT_TITLE && line->numElements > 1) {	newElements[2].indent = line->elements[1].indent;
1240	/* make the title a single argument (undoing our parsing) */	for (int i = 2; i < line->numElements; i++) {
1241	len = 0;	newElements[i+1].item = line->elements[i].item;
1242	for (i = 1; i < line->numElements; i++) {	newElements[i+1].indent =
1243	len += strlen(line->elements[i].item);	line->elements[i].indent;
1244	len += strlen(line->elements[i].indent);	}
1245	}	free(line->elements);
1246	buf = malloc(len + 1);	line->elements = newElements;
1247	*buf = '\0';	line->numElements = numElements;
1248		}
1249		}
1250
1251	for (i = 1; i < line->numElements; i++) {	return 0;
1252	strcat(buf, line->elements[i].item);	}
	free(line->elements[i].item);
1253
1254	if ((i + 1) != line->numElements) {	static int isnumber(const char *s)
1255	strcat(buf, line->elements[i].indent);	{
1256	free(line->elements[i].indent);	int i;
1257	}	for (i = 0; s[i] != '\0'; i++)
1258	}	if (s[i] < '0' || s[i] > '9')
1259		return 0;
1260	line->elements[1].indent =	return i;
1261	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;
1262
1263	if (sawEntry) {	static struct grubConfig *readConfig(const char *inName,
1264	if (!entry->lines)	struct configFileInfo *cfi)
1265	entry->lines = line;	{
1266	else	int in;
1267	last->next = line;	char *incoming = NULL, *head;
1268	dbgPrintf("readConfig added %d to %p\n", line->type, entry);	int rc;
1269		int sawEntry = 0;
1270		int movedLine = 0;
1271		struct grubConfig *cfg;
1272		struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273		char *end;
1274		struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283	} else {	} else {
1284	if (!cfg->theLines)	if ((in = open(inName, O_RDONLY)) < 0) {
1285	cfg->theLines = line;	fprintf(stderr, _("error opening %s for read: %s\n"),
1286	else	inName, strerror(errno));
1287	last->next = line;	return NULL;
1288	dbgPrintf("readConfig added %d to cfg\n", line->type);	}
1289	}	}
1290
1291	last = line;	rc = readFile(in, &incoming);
1292	}	close(in);
1293		if (rc)
1294		return NULL;
1295
1296		head = incoming;
1297		cfg = malloc(sizeof(*cfg));
1298		cfg->primaryIndent = strdup("");
1299		cfg->secondaryIndent = strdup("\t");
1300		cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301		cfg->cfi = cfi;
1302		cfg->theLines = NULL;
1303		cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305		cfg->isModified = 0;
1306
1307		/* copy everything we have */
1308		while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	free(incoming);	if (!sawEntry && line->numElements) {
1319		free(cfg->primaryIndent);
1320		cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if (defaultLine) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	if (cfi->defaultSupportSaved &&	sawEntry = 1;
1328	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	if (!entry) {
1329	cfg->defaultImage = DEFAULT_SAVED;	cfg->entries = malloc(sizeof(*entry));
1330	} else if (cfi->defaultIsIndex) {	entry = cfg->entries;
1331	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);	} else {
1332	if (*end) cfg->defaultImage = -1;	entry->next = malloc(sizeof(*entry));
1333	} else if (defaultLine->numElements >= 2) {	entry = entry->next;
1334	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;
	}
1335
1336	if (entry){	entry->skip = 0;
1337	cfg->defaultImage = i;	entry->multiboot = 0;
1338	}else{	entry->lines = NULL;
1339	cfg->defaultImage = -1;	entry->next = NULL;
1340	}	}
	}
	} else {
	cfg->defaultImage = 0;
	}
1341
1342	return cfg;	if (line->type == LT_SET_VARIABLE) {
1343	}	dbgPrintf("found 'set' command (%d elements): ",
1344		line->numElements);
1345		dbgPrintf("%s", line->indent);
1346		for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349		dbgPrintf("\n");
1350		struct keywordTypes *kwType =
1351		getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353		&& !strcmp(line->elements[1].item, kwType->key)
1354		&& !is_special_grub2_variable(
1355		line->elements[2].item)) {
1356		dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358		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	static void writeDefault(FILE * out, char * indent,	} else if (line->type == LT_MBMODULE) {
1369	char * separator, struct grubConfig * cfg) {	/* go back and fix the LT_KERNEL line to indicate
1370	struct singleEntry * entry;	* LT_HYPER instead, now that we know this is a
1371	struct singleLine * line;	* multiboot entry.  This only applies to grub, but
1372	int i;	* 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	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	if (cfg->defaultImage == DEFAULT_SAVED)	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	fprintf(out, "%sdefault%ssaved\n", indent, separator);	cfg->fallbackImage =
1391	else if (cfg->defaultImage > -1) {	strtol(line->elements[1].item, &end, 10);
1392	if (cfg->cfi->defaultIsIndex) {	if (*end)
1393	fprintf(out, "%sdefault%s%d\n", indent, separator,	cfg->fallbackImage = -1;
1394	cfg->defaultImage);
1395	} else {	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	int image = cfg->defaultImage;	|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	entry = cfg->entries;	for (int i = 1; i < line->numElements; i++) {
1409	while (entry && entry->skip) entry = entry->next;	strcat(buf, line->elements[i].item);
1410		free(line->elements[i].item);
1411
1412		if ((i + 1) != line->numElements) {
1413		strcat(buf, line->elements[i].indent);
1414		free(line->elements[i].indent);
1415		}
1416		}
1417
1418	i = 0;	line->elements[1].indent =
1419	while (entry && i < image) {	line->elements[line->numElements - 1].indent;
1420	entry = entry->next;	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	while (entry && entry->skip) entry = entry->next;	/* allocate mem for extra flags. */
1438	i++;	extras = malloc(len + 1);
1439	}	*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	if (!entry) return;	len = strlen(title);
1456		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	line = getLineByType(LT_TITLE, entry->lines);	/* get extras */
1466		int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	if (line && line->numElements >= 2)	if (!strcmp
1476	fprintf(out, "%sdefault%s%s\n", indent, separator,	(line->elements[i].item, "menuentry"))
1477	line->elements[1].item);	continue;
1478	else if (line && (line->numElements == 1) &&
1479	cfg->cfi->titleBracketed) {	/* count ' or ", there should be two in menuentry line. */
1480	fprintf(out, "%sdefault%s%s\n", indent, separator,	if (isquote(*line->elements[i].item)
1481	extractTitle(line));	&& quote_char == '\0') {
1482	}	/* ensure we properly pair off quotes */
1483	}	quote_char = *line->elements[i].item;
1484	}	count++;
1485	}	}
1486
1487	static int writeConfig(struct grubConfig * cfg, char * outName,	len = strlen(line->elements[i].item);
	const char * prefix) {
	FILE * out;
	struct singleLine * line;
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1488
1489	line = cfg->theLines;	if (line->elements[i].item[len - 1] ==
1490	while (line) {	quote_char)
1491	if (line->type == LT_DEFAULT) {	count++;
	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;
	}
	}
1492
1493	line = line->next;	/* ok, we get the final ' or ", others are extras. */
1494	}	}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (needs & MAIN_DEFAULT) {	if (isquote(*line->elements[1].item))
1511	writeDefault(out, cfg->primaryIndent, "=", cfg);	memmove(line->elements[1].item,
1512	needs &= ~MAIN_DEFAULT;	line->elements[1].item + 1,
1513	}	strlen(line->elements[1].item +
1514		1) + 1);
1515
1516		last = line->numElements - 1;
1517		len = strlen(line->elements[last].item) - 1;
1518		if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520		}
1521		}
1522
1523	i = 0;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	while ((entry = findEntryByIndex(cfg, i++))) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	if (entry->skip) continue;	defaultLine = line;
1526		}
1527
1528	line = entry->lines;	/* If we find a generic config option which should live at the
1529	while (line) {	top of the file, move it there. Old versions of grubby were
1530	if (lineWrite(out, line, cfg->cfi) == -1) {	probably responsible for putting new images in the wrong
1531	fprintf(stderr, _("grubby: error writing %s: %s\n"),	place in front of it anyway. */
1532	tmpOutName, strerror(errno));	if (sawEntry && line->type == LT_GENERIC) {
1533	fclose(out);	struct singleLine **l = &cfg->theLines;
1534	unlink(tmpOutName);	struct singleLine **last_nonws = &cfg->theLines;
1535	return 1;	while (*l) {
1536	}	if ((*l)->type != LT_WHITESPACE)
1537	line = line->next;	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 (tmpOutName) {	/* If a second line of whitespace happens after a generic
1547	if (rename(tmpOutName, outName)) {	* option which was moved, drop it. */
1548	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	if (movedLine && line->type == LT_WHITESPACE
1549	tmpOutName, outName, strerror(errno));	&& last->type == LT_WHITESPACE) {
1550	unlink(outName);	lineFree(line);
1551	return 1;	free(line);
1552	}	movedLine = 0;
1553	}	continue;
1554		}
1555		movedLine = 0;
1556
1557	return 0;	if (sawEntry) {
1558	}	if (!entry->lines)
1559		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	static int numEntries(struct grubConfig *cfg) {	/* we could have seen this outside of an entry... if
1566	int i = 0;	* so, we ignore it like any other line we don't grok
1567	struct singleEntry * entry;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569	entry = cfg->entries;	sawEntry = 0;
1570	while (entry) {	} else {
1571	if (!entry->skip)	if (!cfg->theLines)
1572	i++;	cfg->theLines = line;
1573	entry = entry->next;	else
1574	}	last->next = line;
1575	return i;	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	last = line;
1580	int skipRemoved, int flags) {	}
	struct singleLine * line;
	char * fullName;
	int i;
	struct stat sb, sb2;
	char * dev;
	char * rootspec;
	if (skipRemoved && entry->skip) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line || line->numElements < 2) return 0;
	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;
	fullName = alloca(strlen(bootPrefix) +
	strlen(line->elements[1].item) + 1);
	rootspec = getRootSpecifier(line->elements[1].item);
	sprintf(fullName, "%s%s", bootPrefix,
	line->elements[1].item + (rootspec ? strlen(rootspec) : 0));
	if (access(fullName, R_OK)) 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);
1581
1582	if (line && line->numElements >= 2) {	free(incoming);
1583	dev = line->elements[1].item;
1584		dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692	} else {	} else {
1693	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	cfg->defaultImage = FIRST_ENTRY_INDEX;
	* grub+multiboot uses LT_MBMODULE for the args, so check that too.
	*/
	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);
	/* failed to find one */
	if (!line) return 0;
	for (i = 1; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements)
	dev = line->elements[i].item + 5;
	else {
	/* it failed too...  can't find root= */
	return 0;
	}
1694	}	}
	}
1695
1696	dev = getpathbyspec(dev);	return cfg;
1697	if (!dev)	}
	return 0;
1698
1699	i = stat(dev, &sb);	static void writeDefault(FILE * out, char *indent,
1700	if (i)	char *separator, struct grubConfig *cfg)
1701	return 0;	{
1702		struct singleEntry *entry;
1703		struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751	stat("/", &sb2);	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	if (sb.st_rdev != sb2.st_dev)	while (entry && entry->skip)
1760	return 0;	entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769	return 1;	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	/* returns the first match on or after the one pointed to by index (if index	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	is not NULL) which is not marked as skip */	const char *prefix)
1787	struct singleEntry * findEntryByPath(struct grubConfig * config,	{
1788	const char * kernel, const char * prefix,	FILE *out;
1789	int * index) {	struct singleLine *line;
1790	struct singleEntry * entry = NULL;	struct singleEntry *entry;
1791	struct singleLine * line;	char *tmpOutName;
1792	int i;	int needs = MAIN_DEFAULT;
1793	char * chptr;	struct stat sb;
1794	char * rootspec = NULL;	int i;
1795	enum lineType_e checkType = LT_KERNEL;	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	if (isdigit(*kernel)) {	outName = buf;
1826	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	outName[rc] = '\0';
1827		}
1828
1829	i = 0;	tmpOutName = alloca(strlen(outName) + 2);
1830	indexVars[i] = strtol(kernel, &chptr, 10);	sprintf(tmpOutName, "%s-", outName);
1831	while (*chptr == ',') {	out = fopen(tmpOutName, "w");
1832	i++;	if (!out) {
1833	kernel = chptr + 1;	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834	indexVars[i] = strtol(kernel, &chptr, 10);	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 (*chptr) {	if (needs & MAIN_DEFAULT) {
1886	/* can't parse it, bail */	writeDefault(out, cfg->primaryIndent, "=", cfg);
1887	return NULL;	needs &= ~MAIN_DEFAULT;
1888	}	}
1889
	indexVars[i + 1] = -1;
1890	i = 0;	i = 0;
1891	if (index) {	while ((entry = findEntryByIndex(cfg, i++))) {
1892	while (i < *index) i++;	if (entry->skip)
1893	if (indexVars[i] == -1) return NULL;	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	entry = findEntryByIndex(config, indexVars[i]);	if (tmpOutName) {
1910	if (!entry) return NULL;	/* 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	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	/* fsync() the destination directory after rename */
1927	if (!line) return NULL;	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 (index) *index = indexVars[i];	if (dirfd >= 0)
1937	return entry;	close(dirfd);
1938	}	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
	} else {
	entry = findEntryByIndex(config, config->defaultImage);
	if (entry && entry->skip)
	entry = NULL;
	else if (index)
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
1939
1940	while ((entry = findEntryByIndex(config, i))) {	if (rc == 1)
1941	if (!entry->skip) break;	fprintf(stderr,
1942	i++;	_("grubby: error flushing data: %m\n"));
1943	}	}
1944
1945	if (entry && index)	return rc;
1946	*index = i;	}
1947	} else {
1948	if (index)	static int numEntries(struct grubConfig *cfg)
1949	i = *index;	{
1950	else	int i = 0;
1951	i = 0;	struct singleEntry *entry;
1952
1953	if (!strncmp(kernel, "TITLE=", 6)) {	entry = cfg->entries;
1954	prefix = "";	while (entry) {
1955	checkType = LT_TITLE;	if (!entry->skip)
1956	kernel += 6;	i++;
1957		entry = entry->next;
1958	}	}
1959		return i;
1960		}
1961
1962	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	static char *findDiskForRoot()
1963	if (entry->skip) continue;	{
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	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	char *foundanswer = NULL;
1988
1989	/* check all the lines matching checkType */	while (chptr && chptr != buf + rc) {
1990	for (line = entry->lines; line; line = line->next) {	devname = chptr;
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
1991
1992	if (line && line->numElements >= 2) {	/*
1993	rootspec = getRootSpecifier(line->elements[1].item);	* The first column of a mtab entry is the device, but if the
1994	if (!strcmp(line->elements[1].item +	* entry is a special device it won't start with /, so move
1995	((rootspec != NULL) ? strlen(rootspec) : 0),	* on to the next line.
1996	kernel + strlen(prefix)))	*/
1997	break;	if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002	}	}
	}
2003
2004	/* make sure this entry has a kernel identifier; this skips	/* Seek to the next space */
2005	* non-Linux boot entries (could find netbsd etc, though, which is	chptr = strchr(chptr, ' ');
2006	* unfortunate)	if (!chptr) {
2007	*/	fprintf(stderr, "grubby: error parsing %s: %s\n",
2008	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))	_PATH_MOUNTED, strerror(errno));
2009	break; /* found 'im! */	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	if (index) *index = i;	/* Return the last / entry found */
2028	}	if (foundanswer) {
2029		chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032		}
2033
2034	return entry;	return NULL;
2035	}	}
2036
2037	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	void printEntry(struct singleEntry *entry, FILE * f)
2038	struct singleEntry * entry;	{
2039		int i;
2040		struct singleLine *line;
2041
2042	entry = cfg->entries;	for (line = entry->lines; line; line = line->next) {
2043	while (index && entry) {	log_message(f, "DBG: %s", line->indent);
2044	entry = entry->next;	for (i = 0; i < line->numElements; i++) {
2045	index--;	/* 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	return entry;	continue;
2057	}	}
2058
2059	/* Find a good template to use for the new kernel. An entry is	log_message(f, "%s%s",
2060	* good if the kernel and mkinitrd exist (even if the entry	line->elements[i].item,
2061	* is going to be removed). Try and use the default entry, but	line->elements[i].indent);
2062	* if that doesn't work just take the first. If we can't find one,	}
2063	* bail. */	log_message(f, "\n");
	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,
	int * indexPtr, int skipRemoved, int flags) {
	struct singleEntry * entry, * entry2;
	int index;
	if (cfg->defaultImage > -1) {
	entry = findEntryByIndex(cfg, cfg->defaultImage);
	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
	if (indexPtr) *indexPtr = cfg->defaultImage;
	return entry;
2064	}	}
2065	}	}
2066
2067		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069		{
2070		static int once;
2071		va_list argp, argq;
2072
2073	index = 0;	va_start(argp, fmt);
	while ((entry = findEntryByIndex(cfg, index))) {
	if (suitableImage(entry, prefix, skipRemoved, flags)) {
	int j;
	for (j = 0; j < index; j++) {
	entry2 = findEntryByIndex(cfg, j);
	if (entry2->skip) index--;
	}
	if (indexPtr) *indexPtr = index;
2074
2075	return entry;	va_copy(argq, argp);
2076		if (!once) {
2077		log_time(NULL);
2078		log_message(NULL, "command line: %s\n", saved_command_line);
2079	}	}
2080		log_message(NULL, "DBG: Image entry %s: ",
2081		okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
2083
2084	index++;	printEntry(entry, NULL);
2085	}	va_end(argq);
2086
2087	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	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	return NULL;	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	char * findBootPrefix(void) {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	struct stat sb, sb2;
2109
2110	stat("/", &sb);	static int endswith(const char *s, char c)
2111	#ifdef __ia64__	{
2112	stat("/boot/efi/EFI/redhat/", &sb2);	int slen;
	#else
	stat("/boot", &sb2);
	#endif
2113
2114	if (sb.st_dev == sb2.st_dev)	if (!s || !s[0])
2115	return strdup("");	return 0;
2116		slen = strlen(s) - 1;
2117
2118	#ifdef __ia64__	return s[slen] == c;
	return strdup("/boot/efi/EFI/redhat/");
	#else
	return strdup("/boot");
	#endif
2119	}	}
2120
2121	void markRemovedImage(struct grubConfig * cfg, const char * image,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	const char * prefix) {	int skipRemoved, int flags)
2123	struct singleEntry * entry;	{
2124		struct singleLine *line;
2125	if (!image) return;	char *fullName;
2126		int i;
2127	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	char *dev;
2128	entry->skip = 1;	char *rootspec;
2129	}	char *rootdev;
2130
2131	void setDefaultImage(struct grubConfig * config, int hasNew,	if (skipRemoved && entry->skip) {
2132	const char * defaultKernelPath, int newIsDefault,	notSuitablePrintf(entry, 0, "marked to skip\n");
2133	const char * prefix, int flags) {	return 0;
2134	struct singleEntry * entry, * entry2, * newDefault;	}
2135	int i, j;
2136		line =
2137	if (newIsDefault) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138	config->defaultImage = 0;	entry->lines);
2139	return;	if (!line) {
2140	} else if (defaultKernelPath) {	notSuitablePrintf(entry, 0, "no line found\n");
2141	i = 0;	return 0;
2142	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	}
2143	config->defaultImage = i;	if (line->numElements < 2) {
2144	} else {	notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145	config->defaultImage = -1;	line->numElements);
2146	return;	return 0;
2147	}	}
	}
2148
2149	/* defaultImage now points to what we'd like to use, but before any order	if (flags & GRUBBY_BADIMAGE_OKAY) {
2150	changes */	notSuitablePrintf(entry, 1, "\n");
2151	if (config->defaultImage == DEFAULT_SAVED)	return 1;
2152	/* 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;
2153
2154	if (entry && !entry->skip) {	fullName = alloca(strlen(bootPrefix) +
2155	/* we can preserve the default */	strlen(line->elements[1].item) + 1);
2156	if (hasNew)	rootspec = getRootSpecifier(line->elements[1].item);
2157	config->defaultImage++;	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2158		int hasslash = endswith(bootPrefix, '/') ||
2159	/* count the number of entries erased before this one */	beginswith(line->elements[1].item + rootspec_offset, '/');
2160	for (j = 0; j < config->defaultImage; j++) {	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2161	entry2 = findEntryByIndex(config, j);	line->elements[1].item + rootspec_offset);
2162	if (entry2->skip) config->defaultImage--;	if (access(fullName, R_OK)) {
2163	}	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2164	} else if (hasNew) {	return 0;
2165	config->defaultImage = 0;	}
2166	} else {	for (i = 2; i < line->numElements; i++)
2167	/* Either we just erased the default (or the default line was bad	if (!strncasecmp(line->elements[i].item, "root=", 5))
2168	* to begin with) and didn't put a new one in. We'll use the first	break;
2169	* valid image. */	if (i < line->numElements) {
2170	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,	dev = line->elements[i].item + 5;
2171	flags);	} else {
2172	if (!newDefault)	/* look for a lilo style LT_ROOT line */
2173	config->defaultImage = -1;	line = getLineByType(LT_ROOT, entry->lines);
	}
	}
2174
2175	void setFallbackImage(struct grubConfig * config, int hasNew) {	if (line && line->numElements >= 2) {
2176	struct singleEntry * entry, * entry2;	dev = line->elements[1].item;
2177	int j;	} else {
2178		/* didn't succeed in finding a LT_ROOT, let's try
2179	if (config->fallbackImage == -1) return;	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2180		* for the args, so check that too.
2181	entry = findEntryByIndex(config, config->fallbackImage);	*/
2182	if (!entry || entry->skip) {	line =
2183	config->fallbackImage = -1;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2184	return;	entry->lines);
2185	}
2186		/* failed to find one */
2187		if (!line) {
2188		notSuitablePrintf(entry, 0, "no line found\n");
2189		return 0;
2190		}
2191
2192	if (hasNew)	for (i = 1; i < line->numElements; i++)
2193	config->fallbackImage++;	if (!strncasecmp
2194		(line->elements[i].item, "root=", 5))
2195	/* count the number of entries erased before this one */	break;
2196	for (j = 0; j < config->fallbackImage; j++) {	if (i < line->numElements)
2197	entry2 = findEntryByIndex(config, j);	dev = line->elements[i].item + 5;
2198	if (entry2->skip) config->fallbackImage--;	else {
2199	}	notSuitablePrintf(entry, 0,
2200		"no root= entry found\n");
2201		/* it failed too...  can't find root= */
2202		return 0;
2203		}
2204		}
2205		}
2206
2207		dev = getpathbyspec(dev);
2208		if (!getpathbyspec(dev)) {
2209		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2210		dev);
2211		return 0;
2212		} else
2213		dev = getpathbyspec(dev);
2214
2215		rootdev = findDiskForRoot();
2216		if (!rootdev) {
2217		notSuitablePrintf(entry, 0, "can't find root device\n");
2218		return 0;
2219		}
2220
2221		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2222		notSuitablePrintf(entry, 0,
2223		"uuid missing: rootdev %s, dev %s\n",
2224		getuuidbydev(rootdev), getuuidbydev(dev));
2225		free(rootdev);
2226		return 0;
2227		}
2228
2229		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2230		notSuitablePrintf(entry, 0,
2231		"uuid mismatch: rootdev %s, dev %s\n",
2232		getuuidbydev(rootdev), getuuidbydev(dev));
2233		free(rootdev);
2234		return 0;
2235		}
2236
2237		free(rootdev);
2238		notSuitablePrintf(entry, 1, "\n");
2239
2240		return 1;
2241	}	}
2242
2243	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* returns the first match on or after the one pointed to by index (if index
2244	struct singleLine * line;	is not NULL) which is not marked as skip */
2245	char * root = NULL;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2246	int i;	const char *kernel, const char *prefix,
2247		int *index)
2248	printf("index=%d\n", index);	{
2249		struct singleEntry *entry = NULL;
2250	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	struct singleLine *line;
2251	if (!line) {	int i;
2252	printf("non linux entry\n");	char *chptr;
2253	return;	char *rootspec = NULL;
2254	}	enum lineType_e checkType = LT_KERNEL;
2255
2256		if (isdigit(*kernel)) {
2257		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2258
2259		i = 0;
2260		indexVars[i] = strtol(kernel, &chptr, 10);
2261		while (*chptr == ',') {
2262		i++;
2263		kernel = chptr + 1;
2264		indexVars[i] = strtol(kernel, &chptr, 10);
2265		}
2266
2267	printf("kernel=%s\n", line->elements[1].item);	if (*chptr) {
2268		/* can't parse it, bail */
2269		return NULL;
2270		}
2271
2272	if (line->numElements >= 3) {	indexVars[i + 1] = -1;
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2273
2274	i++;	i = 0;
2275	}	if (index) {
2276	printf("\"\n");	while (i < *index) {
2277	} else {	i++;
2278	line = getLineByType(LT_KERNELARGS, entry->lines);	if (indexVars[i] == -1)
2279	if (line) {	return NULL;
2280	char * s;	}
2281		}
2282
2283	printf("args=\"");	entry = findEntryByIndex(config, indexVars[i]);
2284	i = 1;	if (!entry)
2285	while (i < line->numElements) {	return NULL;
2286	if (!strncmp(line->elements[i].item, "root=", 5)) {
2287	root = line->elements[i].item + 5;	line =
2288		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2289		LT_KERNEL_16, entry->lines);
2290		if (!line)
2291		return NULL;
2292
2293		if (index)
2294		*index = indexVars[i];
2295		return entry;
2296		}
2297
2298		if (!strcmp(kernel, "DEFAULT")) {
2299		if (index && *index > config->defaultImage) {
2300		entry = NULL;
2301	} else {	} else {
2302	s = line->elements[i].item;	entry = findEntryByIndex(config, config->defaultImage);
2303		if (entry && entry->skip)
2304		entry = NULL;
2305		else if (index)
2306		*index = config->defaultImage;
2307		}
2308		} else if (!strcmp(kernel, "ALL")) {
2309		if (index)
2310		i = *index;
2311		else
2312		i = 0;
2313
2314		while ((entry = findEntryByIndex(config, i))) {
2315		if (!entry->skip)
2316		break;
2317		i++;
2318		}
2319
2320	printf("%s%s", s, line->elements[i].indent);	if (entry && index)
2321		*index = i;
2322		} else {
2323		if (index)
2324		i = *index;
2325		else
2326		i = 0;
2327
2328		if (!strncmp(kernel, "TITLE=", 6)) {
2329		prefix = "";
2330		checkType = LT_TITLE | LT_MENUENTRY;
2331		kernel += 6;
2332	}	}
2333
2334	i++;	for (entry = findEntryByIndex(config, i); entry;
2335	}	entry = entry->next, i++) {
2336		if (entry->skip)
2337		continue;
2338
2339		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2340		checkType, kernel, entry);
2341
2342		/* check all the lines matching checkType */
2343		for (line = entry->lines; line; line = line->next) {
2344		enum lineType_e ct = checkType;
2345		if (entry->multiboot && checkType == LT_KERNEL)
2346		ct = LT_KERNEL | LT_KERNEL_EFI |
2347		LT_MBMODULE | LT_HYPER |
2348		LT_KERNEL_16;
2349		else if (checkType & LT_KERNEL)
2350		ct = checkType | LT_KERNEL_EFI |
2351		LT_KERNEL_16;
2352		line = getLineByType(ct, line);
2353		if (!line)
2354		break; /* not found in this entry */
2355
2356		if (line && line->type != LT_MENUENTRY &&
2357		line->numElements >= 2) {
2358		rootspec =
2359		getRootSpecifier(line->elements[1].
2360		item);
2361		if (!strcmp
2362		(line->elements[1].item +
2363		((rootspec !=
2364		NULL) ? strlen(rootspec) : 0),
2365		kernel + strlen(prefix)))
2366		break;
2367		}
2368		if (line->type == LT_MENUENTRY &&
2369		!strcmp(line->elements[1].item, kernel))
2370		break;
2371		}
2372
2373	s = line->elements[i - 1].indent;	/* make sure this entry has a kernel identifier; this skips
2374	printf("\"\n");	* non-Linux boot entries (could find netbsd etc, though, which is
2375		* unfortunate)
2376		*/
2377		if (line
2378		&& getLineByType(LT_KERNEL | LT_HYPER |
2379		LT_KERNEL_EFI | LT_KERNEL_16,
2380		entry->lines))
2381		break; /* found 'im! */
2382		}
2383
2384		if (index)
2385		*index = i;
2386	}	}
	}
2387
2388	if (!root) {	return entry;
2389	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2390
2391	if (root) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2392	char * s = alloca(strlen(root) + 1);	int *index)
2393		{
2394	strcpy(s, root);	struct singleEntry *entry;
2395	if (s[strlen(s) - 1] == '"')	struct singleLine *line;
2396	s[strlen(s) - 1] = '\0';	int i;
2397	/* make sure the root doesn't have a trailing " */	char *newtitle;
2398	printf("root=%s\n", s);
2399	}	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2400		if (index && i < *index)
2401		continue;
2402		line = getLineByType(LT_TITLE, entry->lines);
2403		if (!line)
2404		line = getLineByType(LT_MENUENTRY, entry->lines);
2405		if (!line)
2406		continue;
2407		newtitle = grub2ExtractTitle(line);
2408		if (!newtitle)
2409		continue;
2410		if (!strcmp(title, newtitle))
2411		break;
2412		}
2413
2414	line = getLineByType(LT_INITRD, entry->lines);	if (!entry)
2415		return NULL;
2416
2417	if (line && line->numElements >= 2) {	if (index)
2418	printf("initrd=%s", prefix);	*index = i;
2419	for (i = 1; i < line->numElements; i++)	return entry;
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2420	}	}
2421
2422	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2423	FILE * in;	{
2424	char buf[1024];	struct singleEntry *entry;
	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);
	}
	fclose(in);
2425
2426	return 0;	entry = cfg->entries;
2427	}	while (index && entry) {
2428		entry = entry->next;
2429		index--;
2430		}
2431
2432	void dumpSysconfigGrub(void) {	return entry;
	char * boot;
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
2433	}	}
2434
2435	int displayInfo(struct grubConfig * config, char * kernel,	/* Find a good template to use for the new kernel. An entry is
2436	const char * prefix) {	* good if the kernel and mkinitrd exist (even if the entry
2437	int i = 0;	* is going to be removed). Try and use the default entry, but
2438	struct singleEntry * entry;	* if that doesn't work just take the first. If we can't find one,
2439	struct singleLine * line;	* bail. */
2440		struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2441	entry = findEntryByPath(config, kernel, prefix, &i);	int *indexPtr, int skipRemoved, int flags)
2442	if (!entry) {	{
2443	fprintf(stderr, _("grubby: kernel not found\n"));	struct singleEntry *entry, *entry2;
2444	return 1;	int index;
	}
2445
2446	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (cfg->cfi->defaultIsSaved) {
2447	be a better way */	if (cfg->cfi->getEnv) {
2448	if (config->cfi == &grubConfigType) {	char *defTitle =
2449	dumpSysconfigGrub();	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2450	} else {	if (defTitle) {
2451	line = getLineByType(LT_BOOT, config->theLines);	int index = 0;
2452	if (line && line->numElements >= 1) {	if (isnumber(defTitle)) {
2453	printf("boot=%s\n", line->elements[1].item);	index = atoi(defTitle);
2454		entry = findEntryByIndex(cfg, index);
2455		} else {
2456		entry =
2457		findEntryByTitle(cfg, defTitle,
2458		&index);
2459		}
2460		if (entry
2461		&& suitableImage(entry, prefix, skipRemoved,
2462		flags)) {
2463		cfg->defaultImage = index;
2464		if (indexPtr)
2465		*indexPtr = index;
2466		return entry;
2467		}
2468		}
2469		}
2470		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2471		entry = findEntryByIndex(cfg, cfg->defaultImage);
2472		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2473		if (indexPtr)
2474		*indexPtr = cfg->defaultImage;
2475		return entry;
2476		}
2477	}	}
2478
2479	line = getLineByType(LT_LBA, config->theLines);	index = 0;
2480	if (line) printf("lba\n");	while ((entry = findEntryByIndex(cfg, index))) {
2481	}	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2482		int j, unmodifiedIndex;
2483	displayEntry(entry, prefix, i);
2484		unmodifiedIndex = index;
2485	i++;
2486	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	for (j = 0; j < unmodifiedIndex; j++) {
2487	displayEntry(entry, prefix, i);	entry2 = findEntryByIndex(cfg, j);
2488	i++;	if (entry2->skip)
2489	}	index--;
2490		}
2491		if (indexPtr)
2492		*indexPtr = index;
2493
2494	return 0;	return entry;
2495	}	}
2496
2497	struct singleLine * addLineTmpl(struct singleEntry * entry,	index++;
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi)
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[1]
	*/
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
2498	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
2499
2500	if (!entry->lines) {	fprintf(stderr,
2501	/* first one on the list */	_("grubby fatal error: unable to find a suitable template\n"));
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2502
2503	return newLine;	return NULL;
2504	}	}
2505
2506	/* val may be NULL */	char *findBootPrefix(void)
2507	struct singleLine *  addLine(struct singleEntry * entry,	{
2508	struct configFileInfo * cfi,	struct stat sb, sb2;
	enum lineType_e type, char * defaultIndent,
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) 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 = "";
	}
	}
2509
2510	/* The last non-empty line gives us the indention to us and the line	stat("/", &sb);
2511	to insert after. Note that comments are considered empty lines, which	#ifdef __ia64__
2512	may not be ideal? If there are no lines or we are looking at the	stat("/boot/efi/EFI/redhat/", &sb2);
2513	first line, we use defaultIndent (the first line is normally indented	#else
2514	differently from the rest) */	stat("/boot", &sb2);
2515	for (line = entry->lines, prev = NULL; line; line = line->next) {	#endif
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
2516
2517	if (prev == entry->lines)	if (sb.st_dev == sb2.st_dev)
2518	tmpl.indent = defaultIndent ?: "";	return strdup("");
	else
	tmpl.indent = prev->indent;
2519
2520	return addLineTmpl(entry, &tmpl, prev, val, cfi);	#ifdef __ia64__
2521		return strdup("/boot/efi/EFI/redhat/");
2522		#else
2523		return strdup("/boot");
2524		#endif
2525	}	}
2526
2527	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void markRemovedImage(struct grubConfig *cfg, const char *image,
2528	struct singleLine * prev;	const char *prefix)
2529	int i;	{
2530		struct singleEntry *entry;
2531
2532	for (i = 0; i < line->numElements; i++) {	if (!image)
2533	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2534
2535	if (line == entry->lines) {	/* check and see if we're removing the default image */
2536	entry->lines = line->next;	if (isdigit(*image)) {
2537	} else {	entry = findEntryByPath(cfg, image, prefix, NULL);
2538	prev = entry->lines;	if (entry)
2539	while (prev->next != line) prev = prev->next;	entry->skip = 1;
2540	prev->next = line->next;	return;
2541	}	}
2542
2543	free(line);	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2544		entry->skip = 1;
2545	}	}
2546
2547	static void insertElement(struct singleLine * line,	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2548	const char * item, int insertHere,	const char *defaultKernelPath, int newBootEntryIsDefault,
2549	struct configFileInfo * cfi)	const char *prefix, int flags,
2550		int newDefaultBootEntryIndex, int newBootEntryIndex)
2551	{	{
2552	struct keywordTypes * kw;	struct singleEntry *bootEntry, *newDefault;
2553	char indent[2] = "";	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2554
2555	/* sanity check */	/* initialize */
2556	if (insertHere > line->numElements) {	currentLookupIndex = FIRST_ENTRY_INDEX;
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
2557
2558	line->elements = realloc(line->elements, (line->numElements + 1) *	/* handle the two cases where the user explictly picks the default
2559	sizeof(*line->elements));	* boot entry index as it would exist post-modification */
	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] = ' ';
	}
2560
2561	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	/* Case 1: user chose to make the latest boot entry the default */
2562	/* move the end-of-line forward */	if (newBootEntryIsDefault) {
2563	line->elements[insertHere].indent =	config->defaultImage = newBootEntryIndex;
2564	line->elements[insertHere-1].indent;	return;
2565	line->elements[insertHere-1].indent = strdup(indent);	}
	} else {
	line->elements[insertHere].indent = strdup(indent);
	}
2566
2567	line->numElements++;	/* Case 2: user picked an arbitrary index as the default boot entry */
2568		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2569		indexToVerify = newDefaultBootEntryIndex;
2570
2571	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	/* user chose to make latest boot entry the default */
2572	line->elements[0].item,	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2573	line->elements[insertHere].item,	config->defaultImage = newBootEntryIndex;
2574	line->elements[insertHere].indent,	return;
2575	insertHere);	}
	}
2576
2577	static void removeElement(struct singleLine * line, int removeHere) {	/* the user picks the default index based on the
2578	int i;	* order of the bootloader configuration after
2579		* modification; ensure we are checking for the
2580		* existence of the correct entry */
2581		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2582		if (!config->isModified)
2583		indexToVerify--;
2584		}
2585
2586	/* sanity check */	/* verify the user selected index will exist */
2587	if (removeHere >= line->numElements) return;	if (findEntryByIndex(config, indexToVerify)) {
2588		config->defaultImage = newDefaultBootEntryIndex;
2589		} else {
2590		config->defaultImage = NO_DEFAULT_ENTRY;
2591		}
2592
2593	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	return;
2594	removeHere, line->elements[removeHere].item);	}
2595
2596	free(line->elements[removeHere].item);	/* handle cases where the index value may shift */
2597
2598	if (removeHere > 1) {	/* check validity of existing default or first-entry-found
2599	/* previous argument gets this argument's post-indentation */	selection */
2600	free(line->elements[removeHere-1].indent);	if (defaultKernelPath) {
2601	line->elements[removeHere-1].indent =	/* we must initialize this */
2602	line->elements[removeHere].indent;	firstKernelEntryIndex = 0;
2603	} else {	/* user requested first-entry-found */
2604	free(line->elements[removeHere].indent);	if (!findEntryByPath(config, defaultKernelPath,
2605	}	prefix, &firstKernelEntryIndex)) {
2606		/* don't change default if can't find match */
2607		config->defaultImage = NO_DEFAULT_ENTRY;
2608		return;
2609		}
2610
2611	/* now collapse the array, but don't bother to realloc smaller */	config->defaultImage = firstKernelEntryIndex;
	for (i = removeHere; i < line->numElements - 1; i++)
	line->elements[i] = line->elements[i + 1];
	line->numElements--;
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements, *usedArgs;
	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;
	}
	}
2612
2613	if (!removeArgs) {	/* this is where we start looking for decrement later */
2614	oldArgs = malloc(sizeof(*oldArgs));	currentLookupIndex = config->defaultImage;
	*oldArgs = NULL;
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
	}
	}
2615
2616		if (isAddingBootEntry && !config->isModified &&
2617		(newBootEntryIndex < config->defaultImage)) {
2618		/* increment because new entry added before default */
2619		config->defaultImage++;
2620		}
2621		} else {
2622		/* check to see if the default is stored in the environment */
2623		if (config->defaultImage < FIRST_ENTRY_INDEX) {
2624		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2625		{
2626		if (config->cfi->defaultIsSaved) {
2627		if (config->cfi->getEnv) {
2628		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2629
2630		if (defaultTitle) {
2631		if (isnumber(defaultTitle)) {
2632		currentLookupIndex = atoi(defaultTitle);
2633		} else {
2634		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2635		}
2636		/* set the default Image to an actual index */
2637		config->defaultImage = currentLookupIndex;
2638		}
2639		}
2640		}
2641		}
2642		} else {
2643		/* use pre-existing default entry from the file*/
2644		currentLookupIndex = config->defaultImage;
2645		}
2646
2647	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	if (isAddingBootEntry
2648	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	&& (newBootEntryIndex <= config->defaultImage)) {
2649		config->defaultImage++;
	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
	&& !multibootArgs);
2650
2651	for (k = 0, arg = newArgs; *arg; arg++, k++) ;	if (config->isModified) {
2652	usedArgs = calloc(k, sizeof(*usedArgs));	currentLookupIndex++;
2653		}
2654		}
2655		}
2656
2657	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	/* sanity check - is this entry index valid? */
2658		bootEntry = findEntryByIndex(config, currentLookupIndex);
2659
2660	if (multibootArgs && !entry->multiboot)	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661	continue;	/* entry is to be skipped or is invalid */
2662		if (isAddingBootEntry) {
2663		config->defaultImage = newBootEntryIndex;
2664		return;
2665		}
2666		newDefault =
2667		findTemplate(config, prefix, &config->defaultImage, 1,
2668		flags);
2669		if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671		}
2672
2673	/* Determine where to put the args.  If this config supports	return;
	* 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;
2674	}	}
2675
2676	/* handle the elilo case which does:	currentLookupIndex--;
	*   append="hypervisor args -- kernel args"
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	if (usedArgs[k]) continue;
	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;
	usedArgs[k]=1;
	break;
	}
	}
2677
2678	if (i < line->numElements && doreplace) {	/* decrement index by the total number of entries deleted */
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
2679
2680	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	for (indexToVerify = currentLookupIndex;
2681	/* root= replacement */	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2682	rootLine = getLineByType(LT_ROOT, entry->lines);
2683	if (rootLine) {	bootEntry = findEntryByIndex(config, indexToVerify);
2684	free(rootLine->elements[1].item);
2685	rootLine->elements[1].item = strdup(*arg + 5);	if (bootEntry && bootEntry->skip) {
2686	} else {	config->defaultImage--;
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
2687	}	}
2688	}	}
2689		}
2690
2691		void setFallbackImage(struct grubConfig *config, int hasNew)
2692		{
2693		struct singleEntry *entry, *entry2;
2694		int j;
2695
2696	else {	if (config->fallbackImage == -1)
2697	/* insert/append */	return;
2698	insertElement(line, *arg, i, cfg->cfi);
2699	usedElements = realloc(usedElements, line->numElements *	entry = findEntryByIndex(config, config->fallbackImage);
2700	sizeof(*usedElements));	if (!entry || entry->skip) {
2701	memmove(&usedElements[i + 1], &usedElements[i],	config->fallbackImage = -1;
2702	line->numElements - i - 1);	return;
	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);
2703	}	}
	}
2704
2705	free(usedArgs);	if (hasNew)
2706	free(newArgs);	config->fallbackImage++;
	free(oldArgs);
2707
2708	return 0;	/* count the number of entries erased before this one */
2709		for (j = 0; j < config->fallbackImage; j++) {
2710		entry2 = findEntryByIndex(config, j);
2711		if (entry2->skip)
2712		config->fallbackImage--;
2713		}
2714	}	}
2715
2716	int updateImage(struct grubConfig * cfg, const char * image,	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	const char * prefix, const char * addArgs,	{
2718	const char * removeArgs,	struct singleLine *line;
2719	const char * addMBArgs, const char * removeMBArgs) {	char *root = NULL;
2720	int rc = 0;	int i;
2721		int j;
	if (!image) return rc;
	/* update the main args first... */
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int checkDeviceBootloader(const char * device, const unsigned char * boot) {
	int fd;
	unsigned char bootSect[512];
	int offset;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2722
2723	if (read(fd, bootSect, 512) != 512) {	printf("index=%d\n", index);
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	close(fd);
2724
2725	/* first three bytes should match, a jmp short should be in there */	line =
2726	if (memcmp(boot, bootSect, 3))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727	return 0;	entry->lines);
2728		if (!line) {
2729		printf("non linux entry\n");
2730		return;
2731		}
2732
2733	if (boot[1] == 0xeb) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	offset = boot[2] + 2;	printf("kernel=%s\n", line->elements[1].item);
2735	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	else
2736	offset = (boot[3] << 8) + boot[2] + 2;	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	} else if (boot[0] == 0xeb) {
	offset = boot[1] + 2;
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
2737
2738	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (line->numElements >= 3) {
2739	return 0;	printf("args=\"");
2740		i = 2;
2741		while (i < line->numElements) {
2742		if (!strncmp(line->elements[i].item, "root=", 5)) {
2743		root = line->elements[i].item + 5;
2744		} else {
2745		printf("%s%s", line->elements[i].item,
2746		line->elements[i].indent);
2747		}
2748
2749	return 2;	i++;
2750	}	}
2751		printf("\"\n");
2752		} else {
2753		line = getLineByType(LT_KERNELARGS, entry->lines);
2754		if (line) {
2755		char *s;
2756
2757		printf("args=\"");
2758		i = 1;
2759		while (i < line->numElements) {
2760		if (!strncmp
2761		(line->elements[i].item, "root=", 5)) {
2762		root = line->elements[i].item + 5;
2763		} else {
2764		s = line->elements[i].item;
2765
2766	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	printf("%s%s", s,
2767	int fd;	line->elements[i].indent);
2768	char buf[65536];	}
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
2769
2770	/* it's on raid; we need to parse /proc/mdstat and check all of the	i++;
2771	*raw* devices listed in there */	}
2772
2773	if (!strncmp(mdDev, "/dev/", 5))	s = line->elements[i - 1].indent;
2774	mdDev += 5;	printf("\"\n");
2775		}
2776		}
2777
2778	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!root) {
2779	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	line = getLineByType(LT_ROOT, entry->lines);
2780	strerror(errno));	if (line && line->numElements >= 2)
2781	return 2;	root = line->elements[1].item;
2782	}	}
2783
2784	rc = read(fd, buf, sizeof(buf) - 1);	if (root) {
2785	if (rc < 0 || rc == (sizeof(buf) - 1)) {	char *s = alloca(strlen(root) + 1);
	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2786
2787	chptr = buf;	strcpy(s, root);
2788	while (*chptr) {	if (s[strlen(s) - 1] == '"')
2789	end = strchr(chptr, '\n');	s[strlen(s) - 1] = '\0';
2790	if (!end) break;	/* make sure the root doesn't have a trailing " */
2791	*end = '\0';	printf("root=%s\n", s);
2792		}
2793
2794	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	line =
2795	chptr[strlen(mdDev)] == ' ') {	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2796		entry->lines);
2797
2798	/* found the device */	if (line && line->numElements >= 2) {
2799	while (*chptr && *chptr != ':') chptr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2800	chptr++;	printf("initrd=");
2801	while (*chptr && isspace(*chptr)) chptr++;	else
2802		printf("initrd=%s", prefix);
	/* 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++;
	}
2803
2804	/*  we're good to go */	for (i = 1; i < line->numElements; i++)
2805	return 2;	printf("%s%s", line->elements[i].item,
2806		line->elements[i].indent);
2807		printf("\n");
2808	}	}
2809
2810	chptr = end + 1;	line = getLineByType(LT_TITLE, entry->lines);
2811	}	if (line) {
2812		char *entryTitle;
2813		/* if we can extractTitle, then it's a zipl config and
2814		* if not then we go ahead with what's existed prior */
2815		entryTitle = extractTitle(config, line);
2816		if (!entryTitle) {
2817		entryTitle=line->elements[1].item;
2818		}
2819		printf("title=%s\n", entryTitle);
2820		} else {
2821		char *title;
2822		line = getLineByType(LT_MENUENTRY, entry->lines);
2823		if (line) {
2824		title = grub2ExtractTitle(line);
2825		if (title)
2826		printf("title=%s\n", title);
2827		}
2828		}
2829
2830	fprintf(stderr,	for (j = 0, line = entry->lines; line; line = line->next) {
2831	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2832	mdDev);	if (!strncmp
2833	return 0;	(prefix, line->elements[1].item, strlen(prefix)))
2834		printf("mbmodule%d=", j);
2835		else
2836		printf("mbmodule%d=%s", j, prefix);
2837
2838		for (i = 1; i < line->numElements; i++)
2839		printf("%s%s", line->elements[i].item,
2840		line->elements[i].indent);
2841		printf("\n");
2842		j++;
2843		}
2844		}
2845	}	}
2846
2847	int checkForLilo(struct grubConfig * config) {	int isSuseSystem(void)
2848	int fd;	{
2849	unsigned char boot[512];	const char *path;
2850	struct singleLine * line;	const static char default_path[] = "/etc/SuSE-release";
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
2851
2852	if (line->numElements != 2) return 1;	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2853		path = default_path;
2854
2855	fd = open("/boot/boot.b", O_RDONLY);	if (!access(path, R_OK))
2856	if (fd < 0) {	return 1;
2857	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	return 0;
2858	"/boot/boot.b", strerror(errno));	}
	return 1;
	}
2859
2860	if (read(fd, boot, 512) != 512) {	int isSuseGrubConf(const char *path)
2861	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2862	"/boot/boot.b", strerror(errno));	FILE *grubConf;
2863	return 1;	char *line = NULL;
2864	}	size_t len = 0, res = 0;
2865	close(fd);
2866		grubConf = fopen(path, "r");
2867		if (!grubConf) {
2868		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2869		path);
2870		return 0;
2871		}
2872
2873		while ((res = getline(&line, &len, grubConf)) != -1) {
2874		if (!strncmp(line, "setup", 5)) {
2875		fclose(grubConf);
2876		free(line);
2877		return 1;
2878		}
2879		}
2880
2881	if (!strncmp("/dev/md", line->elements[1].item, 7))	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2882	return checkLiloOnRaid(line->elements[1].item, boot);	path);
2883
2884	return checkDeviceBootloader(line->elements[1].item, boot);	fclose(grubConf);
2885		free(line);
2886		return 0;
2887	}	}
2888
2889	int checkForGrub(struct grubConfig * config) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2890	int fd;	{
2891	unsigned char bootSect[512];	FILE *grubConf;
2892	char * boot;	char *line = NULL;
2893		size_t res = 0, len = 0;
2894
2895	if (parseSysconfigGrub(NULL, &boot))	if (!path)
2896	return 0;	return 1;
2897		if (!lbaPtr)
2898		return 1;
2899
2900	/* assume grub is not installed -- not an error condition */	grubConf = fopen(path, "r");
2901	if (!boot)	if (!grubConf)
2902	return 0;	return 1;
2903
2904	fd = open("/boot/grub/stage1", O_RDONLY);	while ((res = getline(&line, &len, grubConf)) != -1) {
2905	if (fd < 0)	if (line[res - 1] == '\n')
2906	/* this doesn't exist if grub hasn't been installed */	line[res - 1] = '\0';
2907	return 0;	else if (len > res)
2908		line[res] = '\0';
2909		else {
2910		line = realloc(line, res + 1);
2911		line[res] = '\0';
2912		}
2913
2914	if (read(fd, bootSect, 512) != 512) {	if (!strncmp(line, "setup", 5)) {
2915	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (strstr(line, "--force-lba")) {
2916	"/boot/grub/stage1", strerror(errno));	*lbaPtr = 1;
2917	close(fd);	} else {
2918	return 1;	*lbaPtr = 0;
2919	}	}
2920	close(fd);	dbgPrintf("lba: %i\n", *lbaPtr);
2921		break;
2922		}
2923		}
2924
2925	return checkDeviceBootloader(boot, bootSect);	free(line);
2926		fclose(grubConf);
2927		return 0;
2928	}	}
2929
2930	int checkForExtLinux(struct grubConfig * config) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2931	int fd;	{
2932	unsigned char bootSect[512];	FILE *grubConf;
2933	char * boot;	char *line = NULL;
2934	char executable[] = "/boot/extlinux/extlinux";	size_t res = 0, len = 0;
2935		char *lastParamPtr = NULL;
2936		char *secLastParamPtr = NULL;
2937		char installDeviceNumber = '\0';
2938		char *bounds = NULL;
2939
2940	printf("entered: checkForExtLinux()\n");	if (!path)
2941		return 1;
2942		if (!devicePtr)
2943		return 1;
2944
2945	if (parseSysconfigGrub(NULL, &boot))	grubConf = fopen(path, "r");
2946	return 0;	if (!grubConf)
2947		return 1;
2948
2949	/* assume grub is not installed -- not an error condition */	while ((res = getline(&line, &len, grubConf)) != -1) {
2950	if (!boot)	if (strncmp(line, "setup", 5))
2951	return 0;	continue;
2952
2953		if (line[res - 1] == '\n')
2954		line[res - 1] = '\0';
2955		else if (len > res)
2956		line[res] = '\0';
2957		else {
2958		line = realloc(line, res + 1);
2959		line[res] = '\0';
2960		}
2961
2962	fd = open(executable, O_RDONLY);	lastParamPtr = bounds = line + res;
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
	return 0;
2963
2964	if (read(fd, bootSect, 512) != 512) {	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2965	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while (!isspace(*lastParamPtr))
2966	executable, strerror(errno));	lastParamPtr--;
2967	return 1;	lastParamPtr++;
2968	}
2969	close(fd);	secLastParamPtr = lastParamPtr - 2;
2970		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2971
2972		if (lastParamPtr + 3 > bounds) {
2973		dbgPrintf("lastParamPtr going over boundary");
2974		fclose(grubConf);
2975		free(line);
2976		return 1;
2977		}
2978		if (!strncmp(lastParamPtr, "(hd", 3))
2979		lastParamPtr += 3;
2980		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2981
2982		/*
2983		* Second last parameter will decide wether last parameter is
2984		* an IMAGE_DEVICE or INSTALL_DEVICE
2985		*/
2986		while (!isspace(*secLastParamPtr))
2987		secLastParamPtr--;
2988		secLastParamPtr++;
2989
2990		if (secLastParamPtr + 3 > bounds) {
2991		dbgPrintf("secLastParamPtr going over boundary");
2992		fclose(grubConf);
2993		free(line);
2994		return 1;
2995		}
2996		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2997		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2998		secLastParamPtr += 3;
2999		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
3000		installDeviceNumber = *secLastParamPtr;
3001		} else {
3002		installDeviceNumber = *lastParamPtr;
3003		}
3004
3005		*devicePtr = malloc(6);
3006		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3007		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3008		fclose(grubConf);
3009		free(line);
3010		return 0;
3011		}
3012
3013	return checkDeviceBootloader(boot, bootSect);	free(line);
3014		fclose(grubConf);
3015		return 1;
3016	}	}
3017
3018	static char * getRootSpecifier(char * str) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3019	char * idx, * rootspec = NULL;	{
3020		FILE *deviceMap;
3021		char *line = NULL;
3022		size_t res = 0, len = 0;
3023		char *devicePtr;
3024		char *bounds = NULL;
3025		const char *path;
3026		const static char default_path[] = "/boot/grub/device.map";
3027
3028	if (*str == '(') {	if (!device)
3029	idx = rootspec = strdup(str);	return 1;
3030	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (!bootPtr)
3031	*(++idx) = '\0';	return 1;
	}
	return rootspec;
	}
3032
3033	static char * getInitrdVal(struct grubConfig * config,	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3034	const char * prefix, struct singleLine *tmplLine,	path = default_path;
	const char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount)
	{
	char *initrdVal, *end;
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3035
3036	initrdVal = end = malloc(totalSize);	dbgPrintf("opening grub device.map file from: %s\n", path);
3037		deviceMap = fopen(path, "r");
3038		if (!deviceMap)
3039		return 1;
3040
3041	end = stpcpy (end, newKernelInitrd + prefixLen);	while ((res = getline(&line, &len, deviceMap)) != -1) {
3042		if (!strncmp(line, "#", 1))
3043		continue;
3044
3045		if (line[res - 1] == '\n')
3046		line[res - 1] = '\0';
3047		else if (len > res)
3048		line[res] = '\0';
3049		else {
3050		line = realloc(line, res + 1);
3051		line[res] = '\0';
3052		}
3053
3054	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	devicePtr = line;
3055	for (i = 0; i < extraInitrdCount; i++) {	bounds = line + res;
	const char *extraInitrd;
	int j;
3056
3057	extraInitrd = extraInitrds[i] + prefixLen;	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058	/* Don't add entries that are already there */	devicePtr++;
3059	if (tmplLine != NULL) {	dbgPrintf("device: %s\n", devicePtr);
3060	for (j = 2; j < tmplLine->numElements; j++)
3061	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	if (!strncmp(devicePtr, device, strlen(device))) {
3062	break;	devicePtr += strlen(device);
3063		while (isspace(*devicePtr)
3064		&& ((devicePtr + 1) <= bounds))
3065		devicePtr++;
3066
3067	if (j != tmplLine->numElements)	*bootPtr = strdup(devicePtr);
3068	continue;	break;
3069		}
3070	}	}
3071
3072	*end++ = separatorChar;	free(line);
3073	end = stpcpy(end, extraInitrd);	fclose(deviceMap);
3074	}	return 0;
3075		}
3076
3077		int suseGrubConfGetBoot(const char *path, char **bootPtr)
3078		{
3079		char *grubDevice;
3080
3081		if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082		dbgPrintf("error looking for grub installation device\n");
3083		else
3084		dbgPrintf("grubby installation device: %s\n", grubDevice);
3085
3086		if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3087		dbgPrintf("error looking for grub boot device\n");
3088		else
3089		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3090
3091	return initrdVal;	free(grubDevice);
3092		return 0;
3093	}	}
3094
3095	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3096	const char * prefix,	{
3097	char * newKernelPath, char * newKernelTitle,	/*
3098	char * newKernelArgs, char * newKernelInitrd,	* This SuSE grub configuration file at this location is not your
3099	char ** extraInitrds, int extraInitrdCount,	* average grub configuration file, but instead the grub commands
3100	char * newMBKernel, char * newMBKernelArgs) {	* used to setup grub on that system.
3101	struct singleEntry * new;	*/
3102	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	const char *path;
3103	int needs;	const static char default_path[] = "/etc/grub.conf";
3104	char * chptr;
3105		if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3106	if (!newKernelPath) return 0;	path = default_path;
	/* 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;
3107
3108	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (!isSuseGrubConf(path))
3109	while (findEntryByPath(config, buf, NULL, NULL)) {	return 1;
3110	sprintf(numBuf, "%d", i++);
3111	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	if (lbaPtr) {
3112		*lbaPtr = 0;
3113		if (suseGrubConfGetLba(path, lbaPtr))
3114		return 1;
3115	}	}
3116
3117	newKernelTitle = buf + 6;	if (bootPtr) {
3118	}	*bootPtr = NULL;
3119		suseGrubConfGetBoot(path, bootPtr);
3120		}
3121
3122	new = malloc(sizeof(*new));	return 0;
3123	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;
	}
3124
3125	if (template) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126	for (masterLine = template->lines;	{
3127	masterLine && (tmplLine = lineDup(masterLine));	FILE *in;
3128	lineFree(tmplLine), masterLine = masterLine->next)	char buf[1024];
3129	{	char *chptr;
3130	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	char *start;
3131		char *param;
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->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_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 {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
	}
	} else {
	/* don't have a template, so start the entry with the
	* appropriate starting line
	*/
	switch (config->cfi->entrySeparator) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3132
3133	case LT_HYPER:	in = fopen("/etc/sysconfig/grub", "r");
3134	newLine = addLine(new, config->cfi, LT_HYPER,	if (!in)
3135	config->primaryIndent,	return 1;
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3136
3137	case LT_TITLE:	if (lbaPtr)
3138	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	*lbaPtr = 0;
3139	char * templabel;	if (bootPtr)
3140	int x = 0, y = 0;	*bootPtr = NULL;
3141
3142	templabel = strdup(newKernelTitle);	while (fgets(buf, sizeof(buf), in)) {
3143	while( templabel[x]){	start = buf;
3144	if( templabel[x] == ' ' ){	while (isspace(*start))
3145	y = x;	start++;
3146	while( templabel[y] ){	if (*start == '#')
3147	templabel[y] = templabel[y+1];	continue;
3148	y++;
3149	}	chptr = strchr(start, '=');
3150	}	if (!chptr)
3151	x++;	continue;
3152	}	chptr--;
3153	newLine = addLine(new, config->cfi, LT_TITLE,	while (*chptr && isspace(*chptr))
3154	config->primaryIndent, templabel);	chptr--;
3155	free(templabel);	chptr++;
3156	}else{	*chptr = '\0';
3157	newLine = addLine(new, config->cfi, LT_TITLE,
3158	config->primaryIndent, newKernelTitle);	param = chptr + 1;
3159		while (*param && isspace(*param))
3160		param++;
3161		if (*param == '=') {
3162		param++;
3163		while (*param && isspace(*param))
3164		param++;
3165	}	}
	needs &= ~NEED_TITLE;
	break;
3166
3167	default:	chptr = param;
3168	abort();	while (*chptr && !isspace(*chptr))
3169		chptr++;
3170		*chptr = '\0';
3171
3172		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3173		*lbaPtr = 1;
3174		else if (!strcmp(start, "boot") && bootPtr)
3175		*bootPtr = strdup(param);
3176	}	}
	}
3177
3178	/* add the remainder of the lines, i.e. those that either	fclose(in);
	* weren't present in the template, or in the case of no template,
	* all the lines following the entrySeparator.
	*/
	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;
	}
3179
3180	if (needs) {	return 0;
3181	printf(_("grubby: needs=%d, aborting\n"), needs);	}
	abort();
	}
3182
3183	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	void dumpSysconfigGrub(void)
3184	newMBKernelArgs, NULL)) return 1;	{
3185		char *boot = NULL;
3186		int lba;
3187
3188	return 0;	if (isSuseSystem()) {
3189		if (parseSuseGrubConf(&lba, &boot)) {
3190		free(boot);
3191		return;
3192		}
3193		} else {
3194		if (parseSysconfigGrub(&lba, &boot)) {
3195		free(boot);
3196		return;
3197		}
3198		}
3199
3200		if (lba)
3201		printf("lba\n");
3202		if (boot) {
3203		printf("boot=%s\n", boot);
3204		free(boot);
3205		}
3206	}	}
3207
3208	static void traceback(int signum)	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3209	{	{
3210	void *array[40];	int i = 0;
3211	size_t size;	struct singleEntry *entry;
3212		struct singleLine *line;
3213	signal(SIGSEGV, SIG_DFL);
3214	memset(array, '\0', sizeof (array));	entry = findEntryByPath(config, kernel, prefix, &i);
3215	size = backtrace(array, 40);	if (!entry) {
3216		fprintf(stderr, _("grubby: kernel not found\n"));
	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",
	(unsigned long)size);
	backtrace_symbols_fd(array, size, STDERR_FILENO);
	exit(1);
	}
	int main(int argc, const char ** argv) {
	poptContext optCon;
	char * grubConfig = NULL;
	char * outputFile = NULL;
	int arg = 0;
	int flags = 0;
	int badImageOkay = 0;
	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
	int configureExtLinux = 0;
	int bootloaderProbe = 0;
	int extraInitrdCount = 0;
	char * updateKernelPath = NULL;
	char * newKernelPath = NULL;
	char * removeKernelPath = NULL;
	char * newKernelArgs = NULL;
	char * newKernelInitrd = NULL;
	char * newKernelTitle = NULL;
	char * newKernelVersion = NULL;
	char * newMBKernel = NULL;
	char * newMBKernelArgs = NULL;
	char * removeMBKernelArgs = NULL;
	char * removeMBKernel = NULL;
	char * bootPrefix = NULL;
	char * defaultKernel = NULL;
	char * removeArgs = NULL;
	char * kernelInfo = NULL;
	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
	const char * chptr = NULL;
	struct configFileInfo * cfi = NULL;
	struct grubConfig * config;
	struct singleEntry * template = NULL;
	int copyDefault = 0, makeDefault = 0;
	int displayDefault = 0;
	struct poptOption options[] = {
	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
	_("add an entry for the specified kernel"), _("kernel-path") },
	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
	_("add an entry for the specified multiboot kernel"), NULL },
	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
	#if defined(__i386__) || defined(__x86_64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check if lilo is installed on lilo.conf boot sector") },
	#endif
	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
	_("path to grub config file to update (\"-\" for stdin)"),
	_("path") },
	{ "copy-default", 0, 0, &copyDefault, 0,
	_("use the default boot entry as a template for the new entry "
	"being added; if the default is not a linux image, or if "
	"the kernel referenced by the default image does not exist, "
	"the first linux entry whose kernel does exist is used as the "
	"template"), NULL },
	{ "default-kernel", 0, 0, &displayDefault, 0,
	_("display the path of the default kernel") },
	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
	_("configure elilo bootloader") },
	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
	_("configure extlinux bootloader (from syslinux)") },
	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,
	_("configure grub 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);
3217	return 1;	return 1;
	}
	break;
3218	}	}
	}
3219
3220	if (arg < -1) {	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3221	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	be a better way */
3222	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	if (config->cfi == &grubConfigType) {
3223	poptStrerror(arg));	dumpSysconfigGrub();
3224	return 1;	} else {
3225	}	line = getLineByType(LT_BOOT, config->theLines);
3226		if (line && line->numElements >= 1) {
3227		printf("boot=%s\n", line->elements[1].item);
3228		}
3229
3230	if ((chptr = poptGetArg(optCon))) {	line = getLineByType(LT_LBA, config->theLines);
3231	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	if (line)
3232	return 1;	printf("lba\n");
3233	}	}
3234
3235	if ((configureLilo + configureGrub + configureELilo +	displayEntry(config, entry, prefix, i);
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
3236
3237	if (!cfi) {	i++;
3238	#ifdef __ia64__	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239	cfi = &eliloConfigType;	displayEntry(config, entry, prefix, i);
3240	#elif __powerpc__	i++;
3241	cfi = &yabootConfigType;	}
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
3242
3243	if (!grubConfig)	return 0;
3244	grubConfig = cfi->defaultConfig;	}
3245
3246	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	struct singleLine *addLineTmpl(struct singleEntry *entry,
3247	newKernelPath || removeKernelPath || makeDefault ||	struct singleLine *tmplLine,
3248	defaultKernel)) {	struct singleLine *prevLine,
3249	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	const char *val, struct configFileInfo *cfi)
3250	"specified option"));	{
3251	return 1;	struct singleLine *newLine = lineDup(tmplLine);
	}
3252
3253	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if (isEfi && cfi == &grub2ConfigType) {
3254	removeKernelPath)) {	enum lineType_e old = newLine->type;
3255	fprintf(stderr, _("grubby: --default-kernel and --info may not "	newLine->type = preferredLineType(newLine->type, cfi);
3256	"be used when adding or removing kernels\n"));	if (old != newLine->type)
3257	return 1;	newLine->elements[0].item =
3258	}	getKeyByType(newLine->type, cfi);
3259		}
3260
3261	if (newKernelPath && !newKernelTitle) {	if (val) {
3262	fprintf(stderr, _("grubby: kernel title must be specified\n"));	/* override the inherited value with our own.
3263	return 1;	* This is a little weak because it only applies to elements[1]
3264	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	*/
3265	newKernelInitrd || copyDefault     ||	if (newLine->numElements > 1)
3266	makeDefault || extraInitrdCount > 0)) {	removeElement(newLine, 1);
3267	fprintf(stderr, _("grubby: kernel path expected\n"));	insertElement(newLine, val, 1, cfi);
3268	return 1;
3269	}	/* but try to keep the rootspec from the template... sigh */
3270		if (tmplLine->
3271		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3272		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3273		LT_INITRD_16)) {
3274		char *rootspec =
3275		getRootSpecifier(tmplLine->elements[1].item);
3276		if (rootspec != NULL) {
3277		free(newLine->elements[1].item);
3278		newLine->elements[1].item =
3279		sdupprintf("%s%s", rootspec, val);
3280		}
3281		}
3282		}
3283
3284	if (newKernelPath && updateKernelPath) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	newLine->elements[0].item : "");
	"not be used together"));
	return 1;
	}
3286
3287	if (makeDefault && defaultKernel) {	if (!entry->lines) {
3288	fprintf(stderr, _("grubby: --make-default and --default-kernel "	/* first one on the list */
3289	"may not be used together\n"));	entry->lines = newLine;
3290	return 1;	} else if (prevLine) {
3291	} else if (defaultKernel && removeKernelPath &&	/* add after prevLine */
3292	!strcmp(defaultKernel, removeKernelPath)) {	newLine->next = prevLine->next;
3293	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	prevLine->next = newLine;
3294	return 1;	}
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
3295
3296	if (!strcmp(grubConfig, "-") && !outputFile) {	return newLine;
3297	fprintf(stderr, _("grubby: output file must be specified if stdin "	}
	"is used\n"));
	return 1;
	}
3298
3299	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	/* val may be NULL */
3300	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	struct singleLine *addLine(struct singleEntry *entry,
3301	&& !removeMBKernel) {	struct configFileInfo *cfi,
3302	fprintf(stderr, _("grubby: no action specified\n"));	enum lineType_e type, char *defaultIndent,
3303	return 1;	const char *val)
3304	}	{
3305		struct singleLine *line, *prev;
3306		struct keywordTypes *kw;
3307		struct singleLine tmpl;
3308
3309	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	/* NB: This function shouldn't allocate items on the heap, rather on
3310		* the stack since it calls addLineTmpl which will make copies.
3311		*/
3312		if (type == LT_TITLE && cfi->titleBracketed) {
3313		/* we're doing a bracketed title (zipl) */
3314		tmpl.type = type;
3315		tmpl.numElements = 1;
3316		tmpl.elements = alloca(sizeof(*tmpl.elements));
3317		tmpl.elements[0].item = alloca(strlen(val) + 3);
3318		sprintf(tmpl.elements[0].item, "[%s]", val);
3319		tmpl.elements[0].indent = "";
3320		val = NULL;
3321		} else if (type == LT_MENUENTRY) {
3322		char *lineend = "--class gnu-linux --class gnu --class os {";
3323		if (!val) {
3324		fprintf(stderr,
3325		"Line type LT_MENUENTRY requires a value\n");
3326		abort();
3327		}
3328		kw = getKeywordByType(type, cfi);
3329		if (!kw) {
3330		fprintf(stderr,
3331		"Looking up keyword for unknown type %d\n",
3332		type);
3333		abort();
3334		}
3335		tmpl.indent = "";
3336		tmpl.type = type;
3337		tmpl.numElements = 3;
3338		tmpl.elements =
3339		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3340		tmpl.elements[0].item = kw->key;
3341		tmpl.elements[0].indent = alloca(2);
3342		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3343		tmpl.elements[1].item = (char *)val;
3344		tmpl.elements[1].indent = alloca(2);
3345		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3346		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3347		strcpy(tmpl.elements[2].item, lineend);
3348		tmpl.elements[2].indent = "";
3349		} else {
3350		kw = getKeywordByType(type, cfi);
3351		if (!kw) {
3352		fprintf(stderr,
3353		"Looking up keyword for unknown type %d\n",
3354		type);
3355		abort();
3356		}
3357		tmpl.type = type;
3358		tmpl.numElements = val ? 2 : 1;
3359		tmpl.elements =
3360		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3361		tmpl.elements[0].item = kw->key;
3362		tmpl.elements[0].indent = alloca(2);
3363		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3364		if (val) {
3365		tmpl.elements[1].item = (char *)val;
3366		tmpl.elements[1].indent = "";
3367		}
3368		}
3369
3370	if (cfi->needsBootPrefix) {	/* The last non-empty line gives us the indention to us and the line
3371	if (!bootPrefix) {	* to insert after. Note that comments are considered empty lines,
3372	bootPrefix = findBootPrefix();	* which may not be ideal? If there are no lines or we are looking at
3373	if (!bootPrefix) return 1;	* the first line, we use defaultIndent (the first line is normally
3374	} else {	* indented differently from the rest) */
3375	/* this shouldn't end with a / */	for (line = entry->lines, prev = NULL; line; line = line->next) {
3376	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	if (line->numElements)
3377	bootPrefix[strlen(bootPrefix) - 1] = '\0';	prev = line;
3378		/* fall back on the last line if prev isn't otherwise set */
3379		if (!line->next && !prev)
3380		prev = line;
3381		}
3382
3383		struct singleLine *menuEntry;
3384		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3385		if (tmpl.type == LT_ENTRY_END) {
3386		if (menuEntry)
3387		tmpl.indent = menuEntry->indent;
3388		else
3389		tmpl.indent = defaultIndent ? : "";
3390		} else if (tmpl.type != LT_MENUENTRY) {
3391		if (menuEntry)
3392		tmpl.indent = "\t";
3393		else if (prev == entry->lines)
3394		tmpl.indent = defaultIndent ? : "";
3395		else
3396		tmpl.indent = prev->indent;
3397	}	}
	} else {
	bootPrefix = "";
	}
3398
3399	if (!cfi->mbAllowExtraInitRds &&	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3400	extraInitrdCount > 0) {	}
	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);
	return 1;
	}
3401
3402	if (bootloaderProbe) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3403	int lrc = 0, grc = 0, erc = 0;	{
3404	struct grubConfig * lconfig, * gconfig;	struct singleLine *prev;
3405		int i;
	if (!access(grubConfigType.defaultConfig, F_OK)) {
	gconfig = readConfig(grubConfigType.defaultConfig, &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) return 1;
	if (lrc == 2) printf("lilo\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
3406
3407	return 0;	for (i = 0; i < line->numElements; i++) {
3408	}	free(line->elements[i].item);
3409		free(line->elements[i].indent);
3410		}
3411		free(line->elements);
3412		free(line->indent);
3413
3414	config = readConfig(grubConfig, cfi);	if (line == entry->lines) {
3415	if (!config) return 1;	entry->lines = line->next;
3416		} else {
3417		prev = entry->lines;
3418		while (prev->next != line)
3419		prev = prev->next;
3420		prev->next = line->next;
3421		}
3422
3423	if (displayDefault) {	free(line);
3424	struct singleLine * line;	}
	struct singleEntry * entry;
	char * rootspec;
	if (config->defaultImage == -1) return 0;
	entry = findEntryByIndex(config, config->defaultImage);
	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));
3425
3426	return 0;	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3427	} else if (kernelInfo)	{
3428	return displayInfo(config, kernelInfo, bootPrefix);	struct singleLine newLine = {
3429		.indent = tmplLine->indent,
3430		.type = tmplLine->type,
3431		.next = tmplLine->next,
3432		};
3433		int firstQuotedItem = -1;
3434		int quoteLen = 0;
3435		int j;
3436		int element = 0;
3437		char *c;
3438
3439	if (copyDefault) {	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3440	template = findTemplate(config, bootPrefix, NULL, 0, flags);	strcpy(c, tmplLine->elements[0].item);
3441	if (!template) return 1;	insertElement(&newLine, c, element++, cfi);
3442	}	free(c);
3443		c = NULL;
3444
3445		for (j = 1; j < tmplLine->numElements; j++) {
3446		if (firstQuotedItem == -1) {
3447		quoteLen += strlen(tmplLine->elements[j].item);
3448
3449		if (isquote(tmplLine->elements[j].item[0])) {
3450		firstQuotedItem = j;
3451		quoteLen +=
3452		strlen(tmplLine->elements[j].indent);
3453		} else {
3454		c = malloc(quoteLen + 1);
3455		strcpy(c, tmplLine->elements[j].item);
3456		insertElement(&newLine, c, element++, cfi);
3457		free(c);
3458		quoteLen = 0;
3459		}
3460		} else {
3461		int itemlen = strlen(tmplLine->elements[j].item);
3462		quoteLen += itemlen;
3463		quoteLen += strlen(tmplLine->elements[j].indent);
3464
3465		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3466		c = malloc(quoteLen + 1);
3467		c[0] = '\0';
3468		for (int i = firstQuotedItem; i < j + 1; i++) {
3469		strcat(c, tmplLine->elements[i].item);
3470		strcat(c, tmplLine->elements[i].indent);
3471		}
3472		insertElement(&newLine, c, element++, cfi);
3473		free(c);
3474
3475	markRemovedImage(config, removeKernelPath, bootPrefix);	firstQuotedItem = -1;
3476	markRemovedImage(config, removeMBKernel, bootPrefix);	quoteLen = 0;
3477	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	}
3478	bootPrefix, flags);	}
3479	setFallbackImage(config, newKernelPath != NULL);	}
3480	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	while (tmplLine->numElements)
3481	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	removeElement(tmplLine, 0);
3482	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (tmplLine->elements)
3483	newKernelTitle, newKernelArgs, newKernelInitrd,	free(tmplLine->elements);
3484	extraInitrds, extraInitrdCount,
3485	newMBKernel, newMBKernelArgs)) return 1;	tmplLine->numElements = newLine.numElements;
3486		tmplLine->elements = newLine.elements;
3487		}
3488	if (numEntries(config) == 0) {
3489	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	static void insertElement(struct singleLine *line,
3490	"Not writing out new config.\n"));	const char *item, int insertHere,
3491	return 1;	struct configFileInfo *cfi)
3492	}	{
3493		struct keywordTypes *kw;
3494		char indent[2] = "";
3495
3496		/* sanity check */
3497		if (insertHere > line->numElements) {
3498		dbgPrintf
3499		("insertElement() adjusting insertHere from %d to %d\n",
3500		insertHere, line->numElements);
3501		insertHere = line->numElements;
3502		}
3503
3504		line->elements = realloc(line->elements, (line->numElements + 1) *
3505		sizeof(*line->elements));
3506		memmove(&line->elements[insertHere + 1],
3507		&line->elements[insertHere],
3508		(line->numElements - insertHere) * sizeof(*line->elements));
3509		line->elements[insertHere].item = strdup(item);
3510
3511		kw = getKeywordByType(line->type, cfi);
3512
3513		if (line->numElements == 0) {
3514		indent[0] = '\0';
3515		} else if (insertHere == 0) {
3516		indent[0] = kw->nextChar;
3517		} else if (kw->separatorChar != '\0') {
3518		indent[0] = kw->separatorChar;
3519		} else {
3520		indent[0] = ' ';
3521		}
3522
3523		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3524		/* move the end-of-line forward */
3525		line->elements[insertHere].indent =
3526		line->elements[insertHere - 1].indent;
3527		line->elements[insertHere - 1].indent = strdup(indent);
3528		} else {
3529		line->elements[insertHere].indent = strdup(indent);
3530		}
3531
3532		line->numElements++;
3533
3534		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3535		line->elements[0].item,
3536		line->elements[insertHere].item,
3537		line->elements[insertHere].indent, insertHere);
3538		}
3539
3540		static void removeElement(struct singleLine *line, int removeHere)
3541		{
3542		int i;
3543
3544		/* sanity check */
3545		if (removeHere >= line->numElements)
3546		return;
3547
3548		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3549		removeHere, line->elements[removeHere].item);
3550
3551		free(line->elements[removeHere].item);
3552
3553		if (removeHere > 1) {
3554		/* previous argument gets this argument's post-indentation */
3555		free(line->elements[removeHere - 1].indent);
3556		line->elements[removeHere - 1].indent =
3557		line->elements[removeHere].indent;
3558		} else {
3559		free(line->elements[removeHere].indent);
3560		}
3561
3562		/* now collapse the array, but don't bother to realloc smaller */
3563		for (i = removeHere; i < line->numElements - 1; i++)
3564		line->elements[i] = line->elements[i + 1];
3565
3566		line->numElements--;
3567		}
3568
3569		static int argNameMatch(const char *one, const char *two)
3570		{
3571		char *first, *second;
3572		char *chptra, *chptrb;
3573		int rc;
3574
3575		first = strcpy(alloca(strlen(one) + 1), one);
3576		second = strcpy(alloca(strlen(two) + 1), two);
3577
3578		chptra = strchr(first, '=');
3579		if (chptra)
3580		*chptra = '\0';
3581
3582		chptrb = strchr(second, '=');
3583		if (chptrb)
3584		*chptrb = '\0';
3585
3586		rc = strcmp(first, second);
3587
3588		if (chptra)
3589		*chptra = '=';
3590		if (chptrb)
3591		*chptrb = '=';
3592
3593		return rc;
3594		}
3595
3596		static int argHasValue(const char *arg)
3597		{
3598		char *chptr;
3599
3600		chptr = strchr(arg, '=');
3601		if (chptr)
3602		return 1;
3603		return 0;
3604		}
3605
3606		static int argValueMatch(const char *one, const char *two)
3607		{
3608		char *first, *second;
3609		char *chptra, *chptrb;
3610
3611		first = strcpy(alloca(strlen(one) + 1), one);
3612		second = strcpy(alloca(strlen(two) + 1), two);
3613
3614		chptra = strchr(first, '=');
3615		if (chptra)
3616		chptra += 1;
3617
3618		chptrb = strchr(second, '=');
3619		if (chptrb)
3620		chptrb += 1;
3621
3622		if (!chptra && !chptrb)
3623		return 0;
3624		else if (!chptra)
3625		return *chptrb - 0;
3626		else if (!chptrb)
3627		return 0 - *chptra;
3628		else
3629		return strcmp(chptra, chptrb);
3630		}
3631
3632		int updateActualImage(struct grubConfig *cfg, const char *image,
3633		const char *prefix, const char *addArgs,
3634		const char *removeArgs, int multibootArgs)
3635		{
3636		struct singleEntry *entry;
3637		struct singleLine *line, *rootLine;
3638		int index = 0;
3639		int i, k;
3640		const char **newArgs, **oldArgs;
3641		const char **arg;
3642		int useKernelArgs, useRoot;
3643		int firstElement;
3644		int *usedElements;
3645		int doreplace;
3646
3647		if (!image)
3648		return 0;
3649
3650		if (!addArgs) {
3651		newArgs = malloc(sizeof(*newArgs));
3652		*newArgs = NULL;
3653		} else {
3654		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3655		fprintf(stderr,
3656		_("grubby: error separating arguments '%s'\n"),
3657		addArgs);
3658		return 1;
3659		}
3660		}
3661
3662		if (!removeArgs) {
3663		oldArgs = malloc(sizeof(*oldArgs));
3664		*oldArgs = NULL;
3665		} else {
3666		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3667		fprintf(stderr,
3668		_("grubby: error separating arguments '%s'\n"),
3669		removeArgs);
3670		free(newArgs);
3671		return 1;
3672		}
3673		}
3674
3675		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3676		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3677
3678		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3679		&& !multibootArgs);
3680
3681		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3682
3683		if (multibootArgs && !entry->multiboot)
3684		continue;
3685
3686		/* Determine where to put the args.  If this config supports
3687		* LT_KERNELARGS, use that.  Otherwise use
3688		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3689		*/
3690		if (useKernelArgs) {
3691		line = getLineByType(LT_KERNELARGS, entry->lines);
3692		if (!line) {
3693		/* no LT_KERNELARGS, need to add it */
3694		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3695		cfg->secondaryIndent, NULL);
3696		}
3697		firstElement = 1;
3698
3699		} else if (multibootArgs) {
3700		line = getLineByType(LT_HYPER, entry->lines);
3701		if (!line) {
3702		/* a multiboot entry without LT_HYPER? */
3703		continue;
3704		}
3705		firstElement = 2;
3706
3707		} else {
3708		line =
3709		getLineByType(LT_KERNEL | LT_MBMODULE |
3710		LT_KERNEL_EFI | LT_KERNEL_16,
3711		entry->lines);
3712		if (!line) {
3713		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3714		continue;
3715		}
3716		firstElement = 2;
3717		}
3718
3719		/* handle the elilo case which does:
3720		*   append="hypervisor args -- kernel args"
3721		*/
3722		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3723		/* this is a multiboot entry, make sure there's
3724		* -- on the args line
3725		*/
3726		for (i = firstElement; i < line->numElements; i++) {
3727		if (!strcmp(line->elements[i].item, "--"))
3728		break;
3729		}
3730		if (i == line->numElements) {
3731		/* assume all existing args are kernel args,
3732		* prepend -- to make it official
3733		*/
3734		insertElement(line, "--", firstElement,
3735		cfg->cfi);
3736		i = firstElement;
3737		}
3738		if (!multibootArgs) {
3739		/* kernel args start after the -- */
3740		firstElement = i + 1;
3741		}
3742		} else if (cfg->cfi->mbConcatArgs) {
3743		/* this is a non-multiboot entry, remove hyper args */
3744		for (i = firstElement; i < line->numElements; i++) {
3745		if (!strcmp(line->elements[i].item, "--"))
3746		break;
3747		}
3748		if (i < line->numElements) {
3749		/* remove args up to -- */
3750		while (strcmp
3751		(line->elements[firstElement].item,
3752		"--"))
3753		removeElement(line, firstElement);
3754		/* remove -- */
3755		removeElement(line, firstElement);
3756		}
3757		}
3758
3759		usedElements = calloc(line->numElements, sizeof(*usedElements));
3760
3761		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3762
3763		doreplace = 1;
3764		for (i = firstElement; i < line->numElements; i++) {
3765		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3766		!strcmp(line->elements[i].item, "--")) {
3767		/* reached the end of hyper args, insert here */
3768		doreplace = 0;
3769		break;
3770		}
3771		if (usedElements[i])
3772		continue;
3773		if (!argNameMatch(line->elements[i].item, *arg)) {
3774		usedElements[i] = 1;
3775		break;
3776		}
3777		}
3778
3779		if (i < line->numElements && doreplace) {
3780		/* direct replacement */
3781		free(line->elements[i].item);
3782		line->elements[i].item = strdup(*arg);
3783
3784		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3785		/* root= replacement */
3786		rootLine = getLineByType(LT_ROOT, entry->lines);
3787		if (rootLine) {
3788		free(rootLine->elements[1].item);
3789		rootLine->elements[1].item =
3790		strdup(*arg + 5);
3791		} else {
3792		rootLine =
3793		addLine(entry, cfg->cfi, LT_ROOT,
3794		cfg->secondaryIndent,
3795		*arg + 5);
3796		}
3797		}
3798
3799		else {
3800		/* insert/append */
3801		insertElement(line, *arg, i, cfg->cfi);
3802		usedElements =
3803		realloc(usedElements,
3804		line->numElements *
3805		sizeof(*usedElements));
3806		memmove(&usedElements[i + 1], &usedElements[i],
3807		line->numElements - i - 1);
3808		usedElements[i] = 1;
3809
3810		/* if we updated a root= here even though
3811		* there is a LT_ROOT available we need to
3812		* remove the LT_ROOT entry (this will happen
3813		* if we switch from a device to a label) */
3814		if (useRoot && !strncmp(*arg, "root=", 5)) {
3815		rootLine =
3816		getLineByType(LT_ROOT,
3817		entry->lines);
3818		if (rootLine)
3819		removeLine(entry, rootLine);
3820		}
3821		}
3822		}
3823
3824		free(usedElements);
3825
3826		for (arg = oldArgs; *arg; arg++) {
3827		for (i = firstElement; i < line->numElements; i++) {
3828		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3829		!strcmp(line->elements[i].item, "--"))
3830		/* reached the end of hyper args, stop here */
3831		break;
3832		if (!argNameMatch(line->elements[i].item, *arg)) {
3833		if (!argHasValue(*arg) ||
3834		!argValueMatch(line->elements[i].item, *arg)) {
3835		removeElement(line, i);
3836		break;
3837		}
3838		}
3839		}
3840		/* handle removing LT_ROOT line too */
3841		if (useRoot && !strncmp(*arg, "root=", 5)) {
3842		rootLine = getLineByType(LT_ROOT, entry->lines);
3843		if (rootLine)
3844		removeLine(entry, rootLine);
3845		}
3846		}
3847
3848		if (line->numElements == 1) {
3849		/* don't need the line at all (note it has to be a
3850		LT_KERNELARGS for this to happen */
3851		removeLine(entry, line);
3852		}
3853		}
3854
3855		free(newArgs);
3856		free(oldArgs);
3857
3858		return 0;
3859		}
3860
3861		int updateImage(struct grubConfig *cfg, const char *image,
3862		const char *prefix, const char *addArgs,
3863		const char *removeArgs,
3864		const char *addMBArgs, const char *removeMBArgs)
3865		{
3866		int rc = 0;
3867
3868		if (!image)
3869		return rc;
3870
3871		/* update the main args first... */
3872		if (addArgs || removeArgs)
3873		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3874		0);
3875		if (rc)
3876		return rc;
3877
3878		/* and now any multiboot args */
3879		if (addMBArgs || removeMBArgs)
3880		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3881		removeMBArgs, 1);
3882		return rc;
3883		}
3884
3885		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3886		const char *image, const char *prefix, const char *initrd,
3887		const char *title)
3888		{
3889		struct singleEntry *entry;
3890		struct singleLine *line, *kernelLine, *endLine = NULL;
3891		int index = 0;
3892
3893		if (!image)
3894		return 0;
3895
3896		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3897		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3898		if (!kernelLine)
3899		continue;
3900
3901		/* if title is supplied, the entry's title must match it. */
3902		if (title) {
3903		char *linetitle;
3904
3905		line =
3906		getLineByType(LT_TITLE | LT_MENUENTRY,
3907		entry->lines);
3908		if (!line)
3909		continue;
3910
3911		linetitle = extractTitle(cfg, line);
3912		if (!linetitle)
3913		continue;
3914		if (strcmp(title, linetitle)) {
3915		free(linetitle);
3916		continue;
3917		}
3918		free(linetitle);
3919		}
3920
3921		if (prefix) {
3922		int prefixLen = strlen(prefix);
3923		if (!strncmp(initrd, prefix, prefixLen))
3924		initrd += prefixLen;
3925		}
3926		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3927		if (endLine)
3928		removeLine(entry, endLine);
3929		line =
3930		addLine(entry, cfg->cfi,
3931		preferredLineType(LT_MBMODULE, cfg->cfi),
3932		kernelLine->indent, initrd);
3933		if (!line)
3934		return 1;
3935		if (endLine) {
3936		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3937		if (!line)
3938		return 1;
3939		}
3940
3941		break;
3942		}
3943
3944		return 0;
3945		}
3946
3947		int updateInitrd(struct grubConfig *cfg, const char *image,
3948		const char *prefix, const char *initrd, const char *title)
3949		{
3950		struct singleEntry *entry;
3951		struct singleLine *line, *kernelLine, *endLine = NULL;
3952		int index = 0;
3953
3954		if (!image)
3955		return 0;
3956
3957		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3958		kernelLine =
3959		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3960		entry->lines);
3961		if (!kernelLine)
3962		continue;
3963
3964		/* if title is supplied, the entry's title must match it. */
3965		if (title) {
3966		char *linetitle;
3967
3968		line =
3969		getLineByType(LT_TITLE | LT_MENUENTRY,
3970		entry->lines);
3971		if (!line)
3972		continue;
3973
3974		linetitle = extractTitle(cfg, line);
3975		if (!linetitle)
3976		continue;
3977		if (strcmp(title, linetitle)) {
3978		free(linetitle);
3979		continue;
3980		}
3981		free(linetitle);
3982		}
3983
3984		line =
3985		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3986		entry->lines);
3987		if (line)
3988		removeLine(entry, line);
3989		if (prefix) {
3990		int prefixLen = strlen(prefix);
3991		if (!strncmp(initrd, prefix, prefixLen))
3992		initrd += prefixLen;
3993		}
3994		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3995		if (endLine)
3996		removeLine(entry, endLine);
3997		enum lineType_e lt;
3998		switch (kernelLine->type) {
3999		case LT_KERNEL:
4000		lt = LT_INITRD;
4001		break;
4002		case LT_KERNEL_EFI:
4003		lt = LT_INITRD_EFI;
4004		break;
4005		case LT_KERNEL_16:
4006		lt = LT_INITRD_16;
4007		break;
4008		default:
4009		lt = preferredLineType(LT_INITRD, cfg->cfi);
4010		}
4011		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
4012		if (!line)
4013		return 1;
4014		if (endLine) {
4015		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
4016		if (!line)
4017		return 1;
4018		}
4019
4020		break;
4021		}
4022
4023		return 0;
4024		}
4025
4026		int checkDeviceBootloader(const char *device, const unsigned char *boot)
4027		{
4028		int fd;
4029		unsigned char bootSect[512];
4030		int offset;
4031
4032		fd = open(device, O_RDONLY);
4033		if (fd < 0) {
4034		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4035		device, strerror(errno));
4036		return 1;
4037		}
4038
4039		if (read(fd, bootSect, 512) != 512) {
4040		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4041		device, strerror(errno));
4042		return 1;
4043		}
4044		close(fd);
4045
4046		/* first three bytes should match, a jmp short should be in there */
4047		if (memcmp(boot, bootSect, 3))
4048		return 0;
4049
4050		if (boot[1] == JMP_SHORT_OPCODE) {
4051		offset = boot[2] + 2;
4052		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4053		offset = (boot[3] << 8) + boot[2] + 2;
4054		} else if (boot[0] == JMP_SHORT_OPCODE) {
4055		offset = boot[1] + 2;
4056		/*
4057		* it looks like grub, when copying stage1 into the mbr,
4058		* patches stage1 right after the JMP location, replacing
4059		* other instructions such as JMPs for NOOPs. So, relax the
4060		* check a little bit by skipping those different bytes.
4061		*/
4062		if ((bootSect[offset + 1] == NOOP_OPCODE)
4063		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4064		offset = offset + 3;
4065		}
4066		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4067		offset = (boot[2] << 8) + boot[1] + 2;
4068		} else {
4069		return 0;
4070		}
4071
4072		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4073		return 0;
4074
4075		return 2;
4076		}
4077
4078		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4079		{
4080		int fd;
4081		char buf[65536];
4082		char *end;
4083		char *chptr;
4084		char *chptr2;
4085		int rc;
4086
4087		/* it's on raid; we need to parse /proc/mdstat and check all of the
4088		*raw* devices listed in there */
4089
4090		if (!strncmp(mdDev, "/dev/", 5))
4091		mdDev += 5;
4092
4093		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4094		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4095		strerror(errno));
4096		return 2;
4097		}
4098
4099		rc = read(fd, buf, sizeof(buf) - 1);
4100		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4101		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4102		strerror(errno));
4103		close(fd);
4104		return 2;
4105		}
4106		close(fd);
4107		buf[rc] = '\0';
4108
4109		chptr = buf;
4110		while (*chptr) {
4111		end = strchr(chptr, '\n');
4112		if (!end)
4113		break;
4114		*end = '\0';
4115
4116		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4117		chptr[strlen(mdDev)] == ' ') {
4118
4119		/* found the device */
4120		while (*chptr && *chptr != ':')
4121		chptr++;
4122		chptr++;
4123		while (*chptr && isspace(*chptr))
4124		chptr++;
4125
4126		/* skip the "active" bit */
4127		while (*chptr && !isspace(*chptr))
4128		chptr++;
4129		while (*chptr && isspace(*chptr))
4130		chptr++;
4131
4132		/* skip the raid level */
4133		while (*chptr && !isspace(*chptr))
4134		chptr++;
4135		while (*chptr && isspace(*chptr))
4136		chptr++;
4137
4138		/* everything else is partition stuff */
4139		while (*chptr) {
4140		chptr2 = chptr;
4141		while (*chptr2 && *chptr2 != '[')
4142		chptr2++;
4143		if (!*chptr2)
4144		break;
4145
4146		/* yank off the numbers at the end */
4147		chptr2--;
4148		while (isdigit(*chptr2) && chptr2 > chptr)
4149		chptr2--;
4150		chptr2++;
4151		*chptr2 = '\0';
4152
4153		/* Better, now we need the /dev/ back. We're
4154		* done with everything before this point, so
4155		* we can just put the /dev/ part there.
4156		* There will always be room. */
4157		memcpy(chptr - 5, "/dev/", 5);
4158		rc = checkDeviceBootloader(chptr - 5, boot);
4159		if (rc != 2) {
4160		return rc;
4161		}
4162
4163		chptr = chptr2 + 1;
4164		/* skip the [11] bit */
4165		while (*chptr && !isspace(*chptr))
4166		chptr++;
4167		/* and move to the next one */
4168		while (*chptr && isspace(*chptr))
4169		chptr++;
4170		}
4171
4172		/*  we're good to go */
4173		return 2;
4174		}
4175
4176		chptr = end + 1;
4177		}
4178
4179		fprintf(stderr,
4180		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4181		mdDev);
4182		return 0;
4183		}
4184
4185		int checkForLilo(struct grubConfig *config)
4186		{
4187		int fd;
4188		unsigned char boot[512];
4189		struct singleLine *line;
4190
4191		for (line = config->theLines; line; line = line->next)
4192		if (line->type == LT_BOOT)
4193		break;
4194
4195		if (!line) {
4196		fprintf(stderr,
4197		_
4198		("grubby: no boot line found in lilo configuration\n"));
4199		return 1;
4200		}
4201
4202		if (line->numElements != 2)
4203		return 1;
4204
4205		fd = open("/boot/boot.b", O_RDONLY);
4206		if (fd < 0) {
4207		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4208		"/boot/boot.b", strerror(errno));
4209		return 1;
4210		}
4211
4212		if (read(fd, boot, 512) != 512) {
4213		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4214		"/boot/boot.b", strerror(errno));
4215		return 1;
4216		}
4217		close(fd);
4218
4219		if (!strncmp("/dev/md", line->elements[1].item, 7))
4220		return checkLiloOnRaid(line->elements[1].item, boot);
4221
4222		return checkDeviceBootloader(line->elements[1].item, boot);
4223		}
4224
4225		int checkForGrub2(struct grubConfig *config)
4226		{
4227		if (!access("/etc/grub.d/", R_OK))
4228		return 2;
4229
4230		return 1;
4231		}
4232
4233		int checkForGrub(struct grubConfig *config)
4234		{
4235		int fd;
4236		unsigned char bootSect[512];
4237		char *boot;
4238		int onSuse = isSuseSystem();
4239
4240		if (onSuse) {
4241		if (parseSuseGrubConf(NULL, &boot))
4242		return 0;
4243		} else {
4244		if (parseSysconfigGrub(NULL, &boot))
4245		return 0;
4246		}
4247
4248		/* assume grub is not installed -- not an error condition */
4249		if (!boot)
4250		return 0;
4251
4252		fd = open("/boot/grub/stage1", O_RDONLY);
4253		if (fd < 0)
4254		/* this doesn't exist if grub hasn't been installed */
4255		return 0;
4256
4257		if (read(fd, bootSect, 512) != 512) {
4258		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4259		"/boot/grub/stage1", strerror(errno));
4260		close(fd);
4261		return 1;
4262		}
4263		close(fd);
4264
4265		/* The more elaborate checks do not work on SuSE. The checks done
4266		* seem to be reasonble (at least for now), so just return success
4267		*/
4268		if (onSuse)
4269		return 2;
4270
4271		return checkDeviceBootloader(boot, bootSect);
4272		}
4273
4274		int checkForExtLinux(struct grubConfig *config)
4275		{
4276		int fd;
4277		unsigned char bootSect[512];
4278		char *boot;
4279		char executable[] = "/boot/extlinux/extlinux";
4280
4281		printf("entered: checkForExtLinux()\n");
4282
4283		if (parseSysconfigGrub(NULL, &boot))
4284		return 0;
4285
4286		/* assume grub is not installed -- not an error condition */
4287		if (!boot)
4288		return 0;
4289
4290		fd = open(executable, O_RDONLY);
4291		if (fd < 0)
4292		/* this doesn't exist if grub hasn't been installed */
4293		return 0;
4294
4295		if (read(fd, bootSect, 512) != 512) {
4296		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4297		executable, strerror(errno));
4298		return 1;
4299		}
4300		close(fd);
4301
4302		return checkDeviceBootloader(boot, bootSect);
4303		}
4304
4305		int checkForYaboot(struct grubConfig *config)
4306		{
4307		/*
4308		* This is a simplistic check that we consider good enough for own puporses
4309		*
4310		* If we were to properly check if yaboot is *installed* we'd need to:
4311		* 1) get the system boot device (LT_BOOT)
4312		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4313		*    the content on the boot device
4314		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4315		* 4) check again if binary and boot device contents match
4316		*/
4317		if (!access("/etc/yaboot.conf", R_OK))
4318		return 2;
4319
4320		return 1;
4321		}
4322
4323		int checkForElilo(struct grubConfig *config)
4324		{
4325		if (!access("/etc/elilo.conf", R_OK))
4326		return 2;
4327
4328		return 1;
4329		}
4330
4331		static char *getRootSpecifier(char *str)
4332		{
4333		char *idx, *rootspec = NULL;
4334
4335		if (*str == '(') {
4336		idx = rootspec = strdup(str);
4337		while (*idx && (*idx != ')') && (!isspace(*idx)))
4338		idx++;
4339		*(++idx) = '\0';
4340		}
4341		return rootspec;
4342		}
4343
4344		static char *getInitrdVal(struct grubConfig *config,
4345		const char *prefix, struct singleLine *tmplLine,
4346		const char *newKernelInitrd,
4347		const char **extraInitrds, int extraInitrdCount)
4348		{
4349		char *initrdVal, *end;
4350		int i;
4351		size_t totalSize;
4352		size_t prefixLen;
4353		char separatorChar;
4354
4355		prefixLen = strlen(prefix);
4356		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4357
4358		for (i = 0; i < extraInitrdCount; i++) {
4359		totalSize += sizeof(separatorChar);
4360		totalSize += strlen(extraInitrds[i]) - prefixLen;
4361		}
4362
4363		initrdVal = end = malloc(totalSize);
4364
4365		end = stpcpy(end, newKernelInitrd + prefixLen);
4366
4367		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4368		for (i = 0; i < extraInitrdCount; i++) {
4369		const char *extraInitrd;
4370		int j;
4371
4372		extraInitrd = extraInitrds[i] + prefixLen;
4373		/* Don't add entries that are already there */
4374		if (tmplLine != NULL) {
4375		for (j = 2; j < tmplLine->numElements; j++)
4376		if (strcmp
4377		(extraInitrd,
4378		tmplLine->elements[j].item) == 0)
4379		break;
4380
4381		if (j != tmplLine->numElements)
4382		continue;
4383		}
4384
4385		*end++ = separatorChar;
4386		end = stpcpy(end, extraInitrd);
4387		}
4388
4389		return initrdVal;
4390		}
4391
4392		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4393		const char *prefix,
4394		const char *newKernelPath, const char *newKernelTitle,
4395		const char *newKernelArgs, const char *newKernelInitrd,
4396		const char **extraInitrds, int extraInitrdCount,
4397		const char *newMBKernel, const char *newMBKernelArgs,
4398		const char *newDevTreePath, int newIndex)
4399		{
4400		struct singleEntry *new, *entry, *prev = NULL;
4401		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4402		int needs;
4403		char *indexs;
4404		char *chptr;
4405		int rc;
4406
4407		if (!newKernelPath)
4408		return 0;
4409
4410		rc = asprintf(&indexs, "%d", newIndex);
4411		if (rc < 0)
4412		return 1;
4413
4414		/* if the newKernelTitle is too long silently munge it into something
4415		* we can live with. truncating is first check, then we'll just mess with
4416		* it until it looks better */
4417		if (config->cfi->maxTitleLength &&
4418		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4419		char *buf = alloca(config->cfi->maxTitleLength + 7);
4420		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4421		int i = 1;
4422
4423		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4424		newKernelTitle);
4425		while (findEntryByPath(config, buf, NULL, NULL)) {
4426		sprintf(numBuf, "%d", i++);
4427		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4428		}
4429
4430		newKernelTitle = buf + 6;
4431		}
4432
4433		new = malloc(sizeof(*new));
4434		new->skip = 0;
4435		new->multiboot = 0;
4436		new->lines = NULL;
4437		entry = config->entries;
4438		for (unsigned int i = 0; i < newIndex; i++) {
4439		if (!entry)
4440		break;
4441		prev = entry;
4442		entry = entry->next;
4443		}
4444		new->next = entry;
4445
4446		if (prev)
4447		prev->next = new;
4448		else
4449		config->entries = new;
4450
4451		/* copy/update from the template */
4452		needs = NEED_KERNEL | NEED_TITLE;
4453		if (newKernelInitrd)
4454		needs |= NEED_INITRD;
4455		if (newMBKernel) {
4456		needs |= NEED_MB;
4457		new->multiboot = 1;
4458		}
4459		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4460		needs |= NEED_DEVTREE;
4461
4462		if (template) {
4463		for (masterLine = template->lines;
4464		masterLine && (tmplLine = lineDup(masterLine));
4465		lineFree(tmplLine), masterLine = masterLine->next) {
4466		dbgPrintf("addNewKernel processing %d\n",
4467		tmplLine->type);
4468
4469		/* skip comments */
4470		chptr = tmplLine->indent;
4471		while (*chptr && isspace(*chptr))
4472		chptr++;
4473		if (*chptr == '#')
4474		continue;
4475
4476		if (iskernel(tmplLine->type)
4477		&& tmplLine->numElements >= 2) {
4478		if (!template->multiboot && (needs & NEED_MB)) {
4479		/* it's not a multiboot template and
4480		* this is the kernel line.  Try to
4481		* be intelligent about inserting the
4482		* hypervisor at the same time.
4483		*/
4484		if (config->cfi->mbHyperFirst) {
4485		/* insert the hypervisor first */
4486		newLine =
4487		addLine(new, config->cfi,
4488		LT_HYPER,
4489		tmplLine->indent,
4490		newMBKernel +
4491		strlen(prefix));
4492		/* set up for adding the
4493		* kernel line */
4494		free(tmplLine->indent);
4495		tmplLine->indent =
4496		strdup(config->
4497		secondaryIndent);
4498		needs &= ~NEED_MB;
4499		}
4500		if (needs & NEED_KERNEL) {
4501		/* use addLineTmpl to
4502		* preserve line elements,
4503		* otherwise we could just
4504		* call addLine.
4505		* Unfortunately this means
4506		* making some changes to the
4507		* template such as the
4508		* indent change above and
4509		* the type change below.
4510		*/
4511		struct keywordTypes *mbm_kw =
4512		getKeywordByType
4513		(LT_MBMODULE, config->cfi);
4514		if (mbm_kw) {
4515		tmplLine->type =
4516		LT_MBMODULE;
4517		free(tmplLine->
4518		elements[0].item);
4519		tmplLine->elements[0].
4520		item =
4521		strdup(mbm_kw->key);
4522		}
4523		newLine =
4524		addLineTmpl(new, tmplLine,
4525		newLine,
4526		newKernelPath +
4527		strlen(prefix),
4528		config->cfi);
4529		needs &= ~NEED_KERNEL;
4530		}
4531		if (needs & NEED_MB) { /* !mbHyperFirst */
4532		newLine =
4533		addLine(new, config->cfi,
4534		LT_HYPER,
4535		config->
4536		secondaryIndent,
4537		newMBKernel +
4538		strlen(prefix));
4539		needs &= ~NEED_MB;
4540		}
4541		} else if (needs & NEED_KERNEL) {
4542		newLine =
4543		addLineTmpl(new, tmplLine, newLine,
4544		newKernelPath +
4545		strlen(prefix),
4546		config->cfi);
4547		needs &= ~NEED_KERNEL;
4548		}
4549
4550		} else if (tmplLine->type == LT_HYPER &&
4551		tmplLine->numElements >= 2) {
4552		if (needs & NEED_MB) {
4553		newLine =
4554		addLineTmpl(new, tmplLine, newLine,
4555		newMBKernel +
4556		strlen(prefix),
4557		config->cfi);
4558		needs &= ~NEED_MB;
4559		}
4560
4561		} else if (tmplLine->type == LT_MBMODULE &&
4562		tmplLine->numElements >= 2) {
4563		if (new->multiboot) {
4564		if (needs & NEED_KERNEL) {
4565		newLine =
4566		addLineTmpl(new, tmplLine,
4567		newLine,
4568		newKernelPath +
4569		strlen(prefix),
4570		config->cfi);
4571		needs &= ~NEED_KERNEL;
4572		} else if (config->cfi->mbInitRdIsModule
4573		&& (needs & NEED_INITRD)) {
4574		char *initrdVal;
4575		initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLineTmpl(new, tmplLine,
4583		newLine,
4584		initrdVal,
4585		config->cfi);
4586		free(initrdVal);
4587		needs &= ~NEED_INITRD;
4588		}
4589		} else if (needs & NEED_KERNEL) {
4590		/* template is multi but new is not,
4591		* insert the kernel in the first
4592		* module slot
4593		*/
4594		tmplLine->type =
4595		preferredLineType(LT_KERNEL,
4596		config->cfi);
4597		free(tmplLine->elements[0].item);
4598		tmplLine->elements[0].item =
4599		strdup(getKeywordByType
4600		(tmplLine->type,
4601		config->cfi)->key);
4602		newLine =
4603		addLineTmpl(new, tmplLine, newLine,
4604		newKernelPath +
4605		strlen(prefix),
4606		config->cfi);
4607		needs &= ~NEED_KERNEL;
4608		} else if (needs & NEED_INITRD) {
4609		char *initrdVal;
4610		/* template is multi but new is not,
4611		* insert the initrd in the second
4612		* module slot
4613		*/
4614		tmplLine->type =
4615		preferredLineType(LT_INITRD,
4616		config->cfi);
4617		free(tmplLine->elements[0].item);
4618		tmplLine->elements[0].item =
4619		strdup(getKeywordByType
4620		(tmplLine->type,
4621		config->cfi)->key);
4622		initrdVal =
4623		getInitrdVal(config, prefix,
4624		tmplLine,
4625		newKernelInitrd,
4626		extraInitrds,
4627		extraInitrdCount);
4628		newLine =
4629		addLineTmpl(new, tmplLine, newLine,
4630		initrdVal, config->cfi);
4631		free(initrdVal);
4632		needs &= ~NEED_INITRD;
4633		}
4634
4635		} else if (isinitrd(tmplLine->type)
4636		&& tmplLine->numElements >= 2) {
4637		if (needs & NEED_INITRD && new->multiboot
4638		&& !template->multiboot
4639		&& config->cfi->mbInitRdIsModule) {
4640		/* make sure we don't insert the
4641		* module initrd before the module
4642		* kernel... if we don't do it here,
4643		* it will be inserted following the
4644		* template.
4645		*/
4646		if (!needs & NEED_KERNEL) {
4647		char *initrdVal;
4648
4649		initrdVal =
4650		getInitrdVal(config, prefix,
4651		tmplLine,
4652		newKernelInitrd,
4653		extraInitrds,
4654		extraInitrdCount);
4655		newLine =
4656		addLine(new, config->cfi,
4657		LT_MBMODULE,
4658		config->
4659		secondaryIndent,
4660		initrdVal);
4661		free(initrdVal);
4662		needs &= ~NEED_INITRD;
4663		}
4664		} else if (needs & NEED_INITRD) {
4665		char *initrdVal;
4666		initrdVal =
4667		getInitrdVal(config, prefix,
4668		tmplLine,
4669		newKernelInitrd,
4670		extraInitrds,
4671		extraInitrdCount);
4672		newLine =
4673		addLineTmpl(new, tmplLine, newLine,
4674		initrdVal, config->cfi);
4675		free(initrdVal);
4676		needs &= ~NEED_INITRD;
4677		}
4678
4679		} else if (tmplLine->type == LT_MENUENTRY &&
4680		(needs & NEED_TITLE)) {
4681		requote(tmplLine, config->cfi);
4682		char *nkt = malloc(strlen(newKernelTitle) + 3);
4683		strcpy(nkt, "'");
4684		strcat(nkt, newKernelTitle);
4685		strcat(nkt, "'");
4686		newLine =
4687		addLineTmpl(new, tmplLine, newLine, nkt,
4688		config->cfi);
4689		free(nkt);
4690		needs &= ~NEED_TITLE;
4691		} else if (tmplLine->type == LT_TITLE &&
4692		(needs & NEED_TITLE)) {
4693		if (tmplLine->numElements >= 2) {
4694		newLine =
4695		addLineTmpl(new, tmplLine, newLine,
4696		newKernelTitle,
4697		config->cfi);
4698		needs &= ~NEED_TITLE;
4699		} else if (tmplLine->numElements == 1 &&
4700		config->cfi->titleBracketed) {
4701		/* addLineTmpl doesn't handle
4702		* titleBracketed */
4703		newLine =
4704		addLine(new, config->cfi, LT_TITLE,
4705		tmplLine->indent,
4706		newKernelTitle);
4707		needs &= ~NEED_TITLE;
4708		}
4709		} else if (tmplLine->type == LT_ECHO) {
4710		requote(tmplLine, config->cfi);
4711		static const char *prefix = "'Loading ";
4712		if (tmplLine->numElements > 1 &&
4713		strstr(tmplLine->elements[1].item, prefix)
4714		&& masterLine->next
4715		&& iskernel(masterLine->next->type)) {
4716		char *newTitle =
4717		malloc(strlen(prefix) +
4718		strlen(newKernelTitle) + 2);
4719
4720		strcpy(newTitle, prefix);
4721		strcat(newTitle, newKernelTitle);
4722		strcat(newTitle, "'");
4723		newLine =
4724		addLine(new, config->cfi, LT_ECHO,
4725		tmplLine->indent, newTitle);
4726		free(newTitle);
4727		} else {
4728		/* pass through other lines from the
4729		* template */
4730		newLine =
4731		addLineTmpl(new, tmplLine, newLine,
4732		NULL, config->cfi);
4733		}
4734		} else if (tmplLine->type == LT_DEVTREE &&
4735		tmplLine->numElements == 2
4736		&& newDevTreePath) {
4737		newLine =
4738		addLineTmpl(new, tmplLine, newLine,
4739		newDevTreePath + strlen(prefix),
4740		config->cfi);
4741		needs &= ~NEED_DEVTREE;
4742		} else if (tmplLine->type == LT_ENTRY_END
4743		&& needs & NEED_DEVTREE) {
4744		const char *ndtp = newDevTreePath;
4745		if (!strncmp
4746		(newDevTreePath, prefix, strlen(prefix)))
4747		ndtp += strlen(prefix);
4748		newLine = addLine(new, config->cfi, LT_DEVTREE,
4749		config->secondaryIndent,
4750		ndtp);
4751		needs &= ~NEED_DEVTREE;
4752		newLine =
4753		addLineTmpl(new, tmplLine, newLine, NULL,
4754		config->cfi);
4755		} else {
4756		/* pass through other lines from the template */
4757		newLine =
4758		addLineTmpl(new, tmplLine, newLine, NULL,
4759		config->cfi);
4760		}
4761		}
4762
4763		} else {
4764		/* don't have a template, so start the entry with the
4765		* appropriate starting line
4766		*/
4767		switch (config->cfi->entryStart) {
4768		case LT_KERNEL:
4769		case LT_KERNEL_EFI:
4770		case LT_KERNEL_16:
4771		if (new->multiboot && config->cfi->mbHyperFirst) {
4772		/* fall through to LT_HYPER */
4773		} else {
4774		newLine = addLine(new, config->cfi,
4775		preferredLineType(LT_KERNEL,
4776		config->
4777		cfi),
4778		config->primaryIndent,
4779		newKernelPath +
4780		strlen(prefix));
4781		needs &= ~NEED_KERNEL;
4782		break;
4783		}
4784
4785		case LT_HYPER:
4786		newLine = addLine(new, config->cfi, LT_HYPER,
4787		config->primaryIndent,
4788		newMBKernel + strlen(prefix));
4789		needs &= ~NEED_MB;
4790		break;
4791
4792		case LT_MENUENTRY:{
4793		char *nkt = malloc(strlen(newKernelTitle) + 3);
4794		strcpy(nkt, "'");
4795		strcat(nkt, newKernelTitle);
4796		strcat(nkt, "'");
4797		newLine =
4798		addLine(new, config->cfi, LT_MENUENTRY,
4799		config->primaryIndent, nkt);
4800		free(nkt);
4801		needs &= ~NEED_TITLE;
4802		needs |= NEED_END;
4803		break;
4804		}
4805		case LT_TITLE:
4806		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4807		char *templabel;
4808		int x = 0, y = 0;
4809
4810		templabel = strdup(newKernelTitle);
4811		while (templabel[x]) {
4812		if (templabel[x] == ' ') {
4813		y = x;
4814		while (templabel[y]) {
4815		templabel[y] =
4816		templabel[y + 1];
4817		y++;
4818		}
4819		}
4820		x++;
4821		}
4822		newLine = addLine(new, config->cfi, LT_TITLE,
4823		config->primaryIndent,
4824		templabel);
4825		free(templabel);
4826		} else {
4827		newLine = addLine(new, config->cfi, LT_TITLE,
4828		config->primaryIndent,
4829		newKernelTitle);
4830		}
4831		needs &= ~NEED_TITLE;
4832		break;
4833
4834		default:
4835		abort();
4836		}
4837		}
4838
4839		struct singleLine *endLine = NULL;
4840		endLine = getLineByType(LT_ENTRY_END, new->lines);
4841		if (endLine) {
4842		removeLine(new, endLine);
4843		needs |= NEED_END;
4844		}
4845
4846		/* add the remainder of the lines, i.e. those that either
4847		* weren't present in the template, or in the case of no template,
4848		* all the lines following the entryStart.
4849		*/
4850		if (needs & NEED_TITLE) {
4851		newLine = addLine(new, config->cfi, LT_TITLE,
4852		config->secondaryIndent, newKernelTitle);
4853		needs &= ~NEED_TITLE;
4854		}
4855		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4856		newLine = addLine(new, config->cfi, LT_HYPER,
4857		config->secondaryIndent,
4858		newMBKernel + strlen(prefix));
4859		needs &= ~NEED_MB;
4860		}
4861		if (needs & NEED_KERNEL) {
4862		newLine = addLine(new, config->cfi,
4863		(new->multiboot
4864		&& getKeywordByType(LT_MBMODULE,
4865		config->cfi))
4866		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4867		config->
4868		cfi),
4869		config->secondaryIndent,
4870		newKernelPath + strlen(prefix));
4871		needs &= ~NEED_KERNEL;
4872		}
4873		if (needs & NEED_MB) {
4874		newLine = addLine(new, config->cfi, LT_HYPER,
4875		config->secondaryIndent,
4876		newMBKernel + strlen(prefix));
4877		needs &= ~NEED_MB;
4878		}
4879		if (needs & NEED_INITRD) {
4880		char *initrdVal;
4881		initrdVal =
4882		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4883		extraInitrds, extraInitrdCount);
4884		newLine =
4885		addLine(new, config->cfi,
4886		(new->multiboot
4887		&& getKeywordByType(LT_MBMODULE, config->cfi))
4888		? LT_MBMODULE : preferredLineType(LT_INITRD,
4889		config->cfi),
4890		config->secondaryIndent, initrdVal);
4891		free(initrdVal);
4892		needs &= ~NEED_INITRD;
4893		}
4894		if (needs & NEED_DEVTREE) {
4895		newLine = addLine(new, config->cfi, LT_DEVTREE,
4896		config->secondaryIndent, newDevTreePath);
4897		needs &= ~NEED_DEVTREE;
4898		}
4899
4900		/* NEEDS_END must be last on bootloaders that need it... */
4901		if (needs & NEED_END) {
4902		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4903		config->secondaryIndent, NULL);
4904		needs &= ~NEED_END;
4905		}
4906
4907		if (needs) {
4908		printf(_("grubby: needs=%d, aborting\n"), needs);
4909		abort();
4910		}
4911
4912		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4913		newMBKernelArgs, NULL)) {
4914		config->isModified = 1;
4915		return 1;
4916		}
4917
4918		return 0;
4919		}
4920
4921		int main(int argc, const char **argv)
4922		{
4923		poptContext optCon;
4924		const char *grubConfig = NULL;
4925		char *outputFile = NULL;
4926		int arg = 0;
4927		int flags = 0;
4928		int badImageOkay = 0;
4929		int configureGrub2 = 0;
4930		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4931		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4932		int configureExtLinux = 0;
4933		int bootloaderProbe = 0;
4934		int extraInitrdCount = 0;
4935		char *updateKernelPath = NULL;
4936		char *newKernelPath = NULL;
4937		char *removeKernelPath = NULL;
4938		char *newKernelArgs = NULL;
4939		char *newKernelInitrd = NULL;
4940		char *newKernelTitle = NULL;
4941		char *newDevTreePath = NULL;
4942		char *newMBKernel = NULL;
4943		char *newMBKernelArgs = NULL;
4944		int newIndex = 0;
4945		char *removeMBKernelArgs = NULL;
4946		char *removeMBKernel = NULL;
4947		char *bootPrefix = NULL;
4948		char *defaultKernel = NULL;
4949		char *removeArgs = NULL;
4950		char *kernelInfo = NULL;
4951		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4952		char *envPath = NULL;
4953		const char *chptr = NULL;
4954		struct configFileInfo *cfi = NULL;
4955		struct grubConfig *config;
4956		struct singleEntry *template = NULL;
4957		int copyDefault = 0, makeDefault = 0;
4958		int displayDefault = 0;
4959		int displayDefaultIndex = 0;
4960		int displayDefaultTitle = 0;
4961		int defaultIndex = -1;
4962		struct poptOption options[] = {
4963		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4964		_("add an entry for the specified kernel"), _("kernel-path")},
4965		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4966		_("add an entry for the specified multiboot kernel"), NULL},
4967		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4968		_("default arguments for the new kernel or new arguments for "
4969		"kernel being updated"), _("args")},
4970		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4971		_("default arguments for the new multiboot kernel or "
4972		"new arguments for multiboot kernel being updated"), NULL},
4973		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4974		_
4975		("don't sanity check images in boot entries (for testing only)"),
4976		NULL},
4977		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4978		_
4979		("filesystem which contains /boot directory (for testing only)"),
4980		_("bootfs")},
4981		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4982		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4983		_("check which bootloader is installed on boot sector")},
4984		#endif
4985		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4986		_("path to grub config file to update (\"-\" for stdin)"),
4987		_("path")},
4988		{"copy-default", 0, 0, &copyDefault, 0,
4989		_("use the default boot entry as a template for the new entry "
4990		"being added; if the default is not a linux image, or if "
4991		"the kernel referenced by the default image does not exist, "
4992		"the first linux entry whose kernel does exist is used as the "
4993		"template"), NULL},
4994		{"debug", 0, 0, &debug, 0,
4995		_("print debugging information for failures")},
4996		{"default-kernel", 0, 0, &displayDefault, 0,
4997		_("display the path of the default kernel")},
4998		{"default-index", 0, 0, &displayDefaultIndex, 0,
4999		_("display the index of the default kernel")},
5000		{"default-title", 0, 0, &displayDefaultTitle, 0,
5001		_("display the title of the default kernel")},
5002		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5003		_("device tree file for new stanza"), _("dtb-path")},
5004		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5005		_("device tree directory for new stanza"), _("dtb-path")},
5006		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
5007		_("configure elilo bootloader")},
5008		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
5009		_("force grub2 stanzas to use efi")},
5010		{"env", 0, POPT_ARG_STRING, &envPath, 0,
5011		_("path for environment data"),
5012		_("path")},
5013		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
5014		_("configure extlinux bootloader (from syslinux)")},
5015		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
5016		_("configure grub bootloader")},
5017		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
5018		_("configure grub2 bootloader")},
5019		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
5020		_("display boot information for specified kernel"),
5021		_("kernel-path")},
5022		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
5023		_("initrd image for the new kernel"), _("initrd-path")},
5024		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
5025		_
5026		("auxiliary initrd image for things other than the new kernel"),
5027		_("initrd-path")},
5028		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
5029		_("configure lilo bootloader")},
5030		{"make-default", 0, 0, &makeDefault, 0,
5031		_("make the newly added entry the default boot entry"), NULL},
5032		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
5033		_("path to output updated config file (\"-\" for stdout)"),
5034		_("path")},
5035		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
5036		_("remove kernel arguments"), NULL},
5037		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
5038		_("remove multiboot kernel arguments"), NULL},
5039		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
5040		_("remove all entries for the specified kernel"),
5041		_("kernel-path")},
5042		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
5043		_("remove all entries for the specified multiboot kernel"),
5044		NULL},
5045		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
5046		_("make the first entry referencing the specified kernel "
5047		"the default"), _("kernel-path")},
5048		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5049		_("make the given entry index the default entry"),
5050		_("entry-index")},
5051		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5052		_("use the given index when creating a new entry"),
5053		_("entry-index")},
5054		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5055		_("configure silo bootloader")},
5056		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5057		_("title to use for the new kernel entry"), _("entry-title")},
5058		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5059		_("updated information for the specified kernel"),
5060		_("kernel-path")},
5061		{"version", 'v', 0, NULL, 'v',
5062		_("print the version of this program and exit"), NULL},
5063		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5064		_("configure yaboot bootloader")},
5065		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5066		_("configure zipl bootloader")},
5067		POPT_AUTOHELP {0, 0, 0, 0, 0}
5068		};
5069
5070		useextlinuxmenu = 0;
5071
5072		int i = 0;
5073		for (int j = 1; j < argc; j++)
5074		i += strlen(argv[j]) + 1;
5075		saved_command_line = malloc(i);
5076		if (!saved_command_line) {
5077		fprintf(stderr, "grubby: %m\n");
5078		exit(1);
5079		}
5080		saved_command_line[0] = '\0';
5081		for (int j = 1; j < argc; j++) {
5082		strcat(saved_command_line, argv[j]);
5083		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5084		}
5085
5086		optCon = poptGetContext("grubby", argc, argv, options, 0);
5087		poptReadDefaultConfig(optCon, 1);
5088
5089		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5090		switch (arg) {
5091		case 'v':
5092		printf("grubby version %s\n", VERSION);
5093		exit(0);
5094		break;
5095		case 'i':
5096		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5097		extraInitrds[extraInitrdCount++] =
5098		strdup(poptGetOptArg(optCon));
5099		} else {
5100		fprintf(stderr,
5101		_
5102		("grubby: extra initrd maximum is %d\n"),
5103		extraInitrdCount);
5104		return 1;
5105		}
5106		break;
5107		}
5108		}
5109
5110		if (arg < -1) {
5111		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5112		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5113		poptStrerror(arg));
5114		return 1;
5115		}
5116
5117		if ((chptr = poptGetArg(optCon))) {
5118		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5119		return 1;
5120		}
5121
5122		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5123		configureYaboot + configureSilo + configureZipl +
5124		configureExtLinux) > 1) {
5125		fprintf(stderr,
5126		_("grubby: cannot specify multiple bootloaders\n"));
5127		return 1;
5128		} else if (bootloaderProbe && grubConfig) {
5129		fprintf(stderr,
5130		_
5131		("grubby: cannot specify config file with --bootloader-probe\n"));
5132		return 1;
5133		} else if (configureGrub2) {
5134		cfi = &grub2ConfigType;
5135		if (envPath)
5136		cfi->envFile = envPath;
5137		} else if (configureLilo) {
5138		cfi = &liloConfigType;
5139		} else if (configureGrub) {
5140		cfi = &grubConfigType;
5141		} else if (configureELilo) {
5142		cfi = &eliloConfigType;
5143		} else if (configureYaboot) {
5144		cfi = &yabootConfigType;
5145		} else if (configureSilo) {
5146		cfi = &siloConfigType;
5147		} else if (configureZipl) {
5148		cfi = &ziplConfigType;
5149		} else if (configureExtLinux) {
5150		cfi = &extlinuxConfigType;
5151		useextlinuxmenu = 1;
5152		}
5153
5154		if (!cfi) {
5155		if (grub2FindConfig(&grub2ConfigType)) {
5156		cfi = &grub2ConfigType;
5157		configureGrub2 = 1;
5158		if (envPath)
5159		cfi->envFile = envPath;
5160		} else {
5161		#ifdef __ia64__
5162		cfi = &eliloConfigType;
5163		configureLilo = 1;
5164		#elif defined(__powerpc__)
5165		cfi = &yabootConfigType;
5166		configureYaboot = 1;
5167		#elif defined(__sparc__)
5168		cfi = &siloConfigType;
5169		configureSilo = 1;
5170		#elif defined(__s390__) || defined(__s390x__)
5171		cfi = &ziplConfigType;
5172		configureZipl = 1;
5173		#else
5174		cfi = &grubConfigType;
5175		configureGrub = 1;
5176		#endif
5177		}
5178		}
5179
5180		if (!grubConfig) {
5181		if (cfi->findConfig)
5182		grubConfig = cfi->findConfig(cfi);
5183		if (!grubConfig)
5184		grubConfig = cfi->defaultConfig;
5185		}
5186
5187		if (bootloaderProbe && (displayDefault || kernelInfo ||
5188		newKernelPath || removeKernelPath || makeDefault
5189		|| defaultKernel || displayDefaultIndex
5190		|| displayDefaultTitle
5191		|| (defaultIndex >= 0))) {
5192		fprintf(stderr,
5193		_("grubby: --bootloader-probe may not be used with "
5194		"specified option"));
5195		return 1;
5196		}
5197
5198		if ((displayDefault || kernelInfo) && (newKernelPath ||
5199		removeKernelPath)) {
5200		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5201		"be used when adding or removing kernels\n"));
5202		return 1;
5203		}
5204
5205		if (newKernelPath && !newKernelTitle) {
5206		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5207		return 1;
5208		} else if (!newKernelPath && (copyDefault ||
5209		(newKernelInitrd && !updateKernelPath) ||
5210		makeDefault || extraInitrdCount > 0)) {
5211		fprintf(stderr, _("grubby: kernel path expected\n"));
5212		return 1;
5213		}
5214
5215		if (newKernelPath && updateKernelPath) {
5216		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5217		"not be used together"));
5218		return 1;
5219		}
5220
5221		if (makeDefault && defaultKernel) {
5222		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5223		"may not be used together\n"));
5224		return 1;
5225		} else if (defaultKernel && removeKernelPath &&
5226		!strcmp(defaultKernel, removeKernelPath)) {
5227		fprintf(stderr,
5228		_("grubby: cannot make removed kernel the default\n"));
5229		return 1;
5230		} else if (defaultKernel && newKernelPath &&
5231		!strcmp(defaultKernel, newKernelPath)) {
5232		makeDefault = 1;
5233		defaultKernel = NULL;
5234		} else if (defaultKernel && (defaultIndex >= 0)) {
5235		fprintf(stderr,
5236		_("grubby: --set-default and --set-default-index "
5237		"may not be used together\n"));
5238		return 1;
5239		}
5240
5241		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5242		fprintf(stderr,
5243		_("grubby: output file must be specified if stdin "
5244		"is used\n"));
5245		return 1;
5246		}
5247
5248		if (!removeKernelPath && !newKernelPath && !displayDefault
5249		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5250		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5251		&& !displayDefaultTitle && (defaultIndex == -1)) {
5252		fprintf(stderr, _("grubby: no action specified\n"));
5253		return 1;
5254		}
5255
5256		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5257
5258		if (cfi->needsBootPrefix) {
5259		if (!bootPrefix) {
5260		bootPrefix = findBootPrefix();
5261		if (!bootPrefix)
5262		return 1;
5263		} else {
5264		/* this shouldn't end with a / */
5265		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5266		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5267		}
5268		} else {
5269		bootPrefix = "";
5270		}
5271
5272		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5273		fprintf(stderr,
5274		_("grubby: %s doesn't allow multiple initrds\n"),
5275		cfi->defaultConfig);
5276		return 1;
5277		}
5278
5279		if (bootloaderProbe) {
5280		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5281		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5282
5283		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5284		if (grub2config) {
5285		gconfig = readConfig(grub2config, &grub2ConfigType);
5286		if (!gconfig)
5287		gr2c = 1;
5288		else
5289		gr2c = checkForGrub2(gconfig);
5290		}
5291
5292		const char *grubconfig = grubFindConfig(&grubConfigType);
5293		if (!access(grubconfig, F_OK)) {
5294		gconfig = readConfig(grubconfig, &grubConfigType);
5295		if (!gconfig)
5296		grc = 1;
5297		else
5298		grc = checkForGrub(gconfig);
5299		}
5300
5301		if (!access(liloConfigType.defaultConfig, F_OK)) {
5302		lconfig =
5303		readConfig(liloConfigType.defaultConfig,
5304		&liloConfigType);
5305		if (!lconfig)
5306		lrc = 1;
5307		else
5308		lrc = checkForLilo(lconfig);
5309		}
5310
5311		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5312		econfig = readConfig(eliloConfigType.defaultConfig,
5313		&eliloConfigType);
5314		if (!econfig)
5315		erc = 1;
5316		else
5317		erc = checkForElilo(econfig);
5318		}
5319
5320		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5321		lconfig =
5322		readConfig(extlinuxConfigType.defaultConfig,
5323		&extlinuxConfigType);
5324		if (!lconfig)
5325		extrc = 1;
5326		else
5327		extrc = checkForExtLinux(lconfig);
5328		}
5329
5330		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5331		yconfig = readConfig(yabootConfigType.defaultConfig,
5332		&yabootConfigType);
5333		if (!yconfig)
5334		yrc = 1;
5335		else
5336		yrc = checkForYaboot(yconfig);
5337		}
5338
5339		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5340		|| erc == 1)
5341		return 1;
5342
5343		if (lrc == 2)
5344		printf("lilo\n");
5345		if (gr2c == 2)
5346		printf("grub2\n");
5347		if (grc == 2)
5348		printf("grub\n");
5349		if (extrc == 2)
5350		printf("extlinux\n");
5351		if (yrc == 2)
5352		printf("yaboot\n");
5353		if (erc == 2)
5354		printf("elilo\n");
5355
5356		return 0;
5357		}
5358
5359		if (grubConfig == NULL) {
5360		printf("Could not find bootloader configuration file.\n");
5361		exit(1);
5362		}
5363
5364		config = readConfig(grubConfig, cfi);
5365		if (!config)
5366		return 1;
5367
5368		if (displayDefault) {
5369		struct singleLine *line;
5370		struct singleEntry *entry;
5371		char *rootspec;
5372
5373		if (config->defaultImage == NO_DEFAULT_ENTRY)
5374		return 0;
5375		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5376		cfi->defaultIsSaved)
5377		config->defaultImage = FIRST_ENTRY_INDEX;
5378		entry = findEntryByIndex(config, config->defaultImage);
5379		if (!entry)
5380		return 0;
5381		if (!suitableImage(entry, bootPrefix, 0, flags))
5382		return 0;
5383
5384		line =
5385		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5386		LT_KERNEL_16, entry->lines);
5387		if (!line)
5388		return 0;
5389
5390		rootspec = getRootSpecifier(line->elements[1].item);
5391		printf("%s%s\n", bootPrefix, line->elements[1].item +
5392		((rootspec != NULL) ? strlen(rootspec) : 0));
5393
5394		return 0;
5395
5396		} else if (displayDefaultTitle) {
5397		struct singleLine *line;
5398		struct singleEntry *entry;
5399
5400		if (config->defaultImage == NO_DEFAULT_ENTRY)
5401		return 0;
5402		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5403		cfi->defaultIsSaved)
5404		config->defaultImage = FIRST_ENTRY_INDEX;
5405		entry = findEntryByIndex(config, config->defaultImage);
5406		if (!entry)
5407		return 0;
5408
5409		if (!configureGrub2) {
5410		char *title;
5411		line = getLineByType(LT_TITLE, entry->lines);
5412		if (!line)
5413		return 0;
5414		title = extractTitle(config, line);
5415		if (!title)
5416		return 0;
5417		printf("%s\n", title);
5418		free(title);
5419		} else {
5420		char *title;
5421
5422		dbgPrintf
5423		("This is GRUB2, default title is embeded in menuentry\n");
5424		line = getLineByType(LT_MENUENTRY, entry->lines);
5425		if (!line)
5426		return 0;
5427		title = grub2ExtractTitle(line);
5428		if (title)
5429		printf("%s\n", title);
5430		}
5431		return 0;
5432
5433		} else if (displayDefaultIndex) {
5434		if (config->defaultImage == NO_DEFAULT_ENTRY)
5435		return 0;
5436		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5437		cfi->defaultIsSaved)
5438		config->defaultImage = FIRST_ENTRY_INDEX;
5439		printf("%i\n", config->defaultImage);
5440		return 0;
5441
5442		} else if (kernelInfo)
5443		return displayInfo(config, kernelInfo, bootPrefix);
5444
5445		if (copyDefault) {
5446		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5447		if (!template)
5448		return 1;
5449		}
5450
5451		markRemovedImage(config, removeKernelPath, bootPrefix);
5452		markRemovedImage(config, removeMBKernel, bootPrefix);
5453		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5454		makeDefault, bootPrefix, flags, defaultIndex,
5455		newIndex);
5456		setFallbackImage(config, newKernelPath != NULL);
5457		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5458		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5459		return 1;
5460		if (updateKernelPath && newKernelInitrd) {
5461		if (newMBKernel) {
5462		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5463		bootPrefix, newKernelInitrd,
5464		newKernelTitle))
5465		return 1;
5466		} else {
5467		if (updateInitrd(config, updateKernelPath, bootPrefix,
5468		newKernelInitrd, newKernelTitle))
5469		return 1;
5470		}
5471		}
5472		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5473		newKernelTitle, newKernelArgs, newKernelInitrd,
5474		(const char **)extraInitrds, extraInitrdCount,
5475		newMBKernel, newMBKernelArgs, newDevTreePath,
5476		newIndex))
5477		return 1;
5478
5479		if (numEntries(config) == 0) {
5480		fprintf(stderr,
5481		_("grubby: doing this would leave no kernel entries. "
5482		"Not writing out new config.\n"));
5483		return 1;
5484		}
5485
5486	if (!outputFile)	if (!outputFile)
5487	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5488
5489	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5490	}	}

---

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Legend: Removed from v.926   changed lines   Added in v.3137