Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1332 by niro, Fri Jun 3 20:32:19 2011 UTC	revision 3136 by niro, Tue Jul 7 11:09:37 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	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void insertElement(struct singleLine * line,	struct configFileInfo *cfi);
704	const char * item, int insertHere,	static char *getRootSpecifier(char *str);
705	struct configFileInfo * cfi);	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	static void removeElement(struct singleLine * line, int removeHere);	static void insertElement(struct singleLine *line,
707	static struct keywordTypes * getKeywordByType(enum lineType_e type,	const char *item, int insertHere,
708	struct configFileInfo * cfi);	struct configFileInfo *cfi);
709	static enum lineType_e getTypeByKeyword(char * keyword,	static void removeElement(struct singleLine *line, int removeHere);
710	struct configFileInfo * cfi);	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	static struct singleLine * getLineByType(enum lineType_e type,	struct configFileInfo *cfi);
712	struct singleLine * line);	static enum lineType_e getTypeByKeyword(char *keyword,
713	static int checkForExtLinux(struct grubConfig * config);	struct configFileInfo *cfi);
714	struct singleLine * addLineTmpl(struct singleEntry * entry,	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * tmplLine,	struct singleLine *line);
716	struct singleLine * prevLine,	static int checkForExtLinux(struct grubConfig *config);
717	const char * val,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	struct configFileInfo * cfi);	struct singleLine *tmplLine,
719	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *prevLine,
720	struct configFileInfo * cfi,	const char *val, struct configFileInfo *cfi);
721	enum lineType_e type, char * defaultIndent,	struct singleLine *addLine(struct singleEntry *entry,
722	const char * val);	struct configFileInfo *cfi,
723		enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785	}	}
786
787	static char * getpathbyspec(char *device) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	if (!blkid)	struct configFileInfo *cfi)
789	blkid_get_cache(&blkid, NULL);	{
790		if (isEfi && cfi == &grub2ConfigType) {
791	return blkid_get_devname(blkid, device, 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	static char * getuuidbydev(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	if (!blkid)	struct configFileInfo *cfi)
816	blkid_get_cache(&blkid, NULL);	{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	return blkid_get_tag_value(blkid, "UUID", device);	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;
944	lineInit(line);	}
945
946		static void lineInit(struct singleLine *line)
947		{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	int i;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	if (fprintf(out, "%s", line->indent) == -1) return -1;	newLine->indent = strdup(line->indent);
960		newLine->next = NULL;
961		newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	for (i = 0; i < line->numElements; i++) {	for (int i = 0; i < newLine->numElements; i++) {
967	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fputc('"', out) == EOF) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	return newLine;
972	if (i < line->numElements - 1)	}
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		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;
1121
1122	p = line->elements[i].item;	/* this is awkward, but we need to be able to handle
1123	while (*p != '\0') {	* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125	while (*p != kw->separatorChar && *p != '\0') p++;	* with no elements (everything stored in the indent
1126	if (*p == '\0') {	*/
1127	break;	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	i = 0;
1516	while ((entry = findEntryByIndex(cfg, i++))) {	last = line->numElements - 1;
1517	if (entry->skip) continue;	len = strlen(line->elements[last].item) - 1;
1518		if (isquote(line->elements[last].item[len]))
1519	line = entry->lines;	line->elements[last].item[len] = '\0';
1520	while (line) {	}
1521	if (lineWrite(out, line, cfg->cfi) == -1) {	}
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
	}
	}
1522
1523	if (tmpOutName) {	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	if (rename(tmpOutName, outName)) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	defaultLine = line;
1526	tmpOutName, outName, strerror(errno));	}
	unlink(outName);
	return 1;
	}
	}
1527
1528	return 0;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	static int numEntries(struct grubConfig *cfg) {	/* If a second line of whitespace happens after a generic
1547	int i = 0;	* option which was moved, drop it. */
1548	struct singleEntry * entry;	if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550	entry = cfg->entries;	lineFree(line);
1551	while (entry) {	free(line);
1552	if (!entry->skip)	movedLine = 0;
1553	i++;	continue;
1554	entry = entry->next;	}
1555	}	movedLine = 0;
	return i;
	}
1556
1557	static char *findDiskForRoot()	if (sawEntry) {
1558	{	if (!entry->lines)
1559	int fd;	entry->lines = line;
1560	char buf[65536];	else
1561	char *devname;	last->next = line;
1562	char *chptr;	dbgPrintf("readConfig added %s to %p\n",
1563	int rc;	getKeyByType(line->type, cfi), entry);
1564
1565	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	/* we could have seen this outside of an entry... if
1566	fprintf(stderr, "grubby: failed to open %s: %s\n",	* so, we ignore it like any other line we don't grok
1567	_PATH_MOUNTED, strerror(errno));	*/
1568	return NULL;	if (line->type == LT_ENTRY_END && sawEntry)
1569	}	sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	rc = read(fd, buf, sizeof(buf) - 1);	last = line;
1580	if (rc <= 0) {	}
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/*
	* Move back 2, which is the first space after the device name, set
	* it to \0 so strdup will just get the devicename.
	*/
	chptr -= 2;
	*chptr = '\0';
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1581
1582	return NULL;	free(incoming);
	}
1583
1584	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int skipRemoved, int flags) {	if (defaultLine) {
1586	struct singleLine * line;	if (defaultLine->numElements > 2 &&
1587	char * fullName;	cfi->defaultSupportSaved &&
1588	int i;	!strncmp(defaultLine->elements[2].item,
1589	char * dev;	"\"${saved_entry}\"", 16)) {
1590	char * rootspec;	cfg->cfi->defaultIsSaved = 1;
1591	char * rootdev;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593	if (skipRemoved && entry->skip) return 0;	char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (defTitle) {
1596	if (!line || line->numElements < 2) return 0;	int index = 0;
1597		if (isnumber(defTitle)) {
1598	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	index = atoi(defTitle);
1599		entry =
1600	fullName = alloca(strlen(bootPrefix) +	findEntryByIndex(cfg,
1601	strlen(line->elements[1].item) + 1);	index);
1602	rootspec = getRootSpecifier(line->elements[1].item);	} else {
1603	sprintf(fullName, "%s%s", bootPrefix,	entry =
1604	line->elements[1].item + (rootspec ? strlen(rootspec) : 0));	findEntryByTitle(cfg,
1605	if (access(fullName, R_OK)) return 0;	defTitle,
1606		&index);
1607	for (i = 2; i < line->numElements; i++)	}
1608	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (entry)
1609	if (i < line->numElements) {	cfg->defaultImage = index;
1610	dev = line->elements[i].item + 5;	}
1611	} else {	}
1612	/* look for a lilo style LT_ROOT line */	} else if (cfi->defaultIsVariable) {
1613	line = getLineByType(LT_ROOT, entry->lines);	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 (line && line->numElements >= 2) {	if (entry) {
1674	dev = line->elements[1].item;	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	rootdev = findDiskForRoot();	static void writeDefault(FILE * out, char *indent,
1700	if (!rootdev)	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	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	entry = cfg->entries;
1752	free(rootdev);	while (entry && entry->skip)
1753	return 0;	entry = entry->next;
1754	}
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	while (entry && entry->skip)
1760	free(rootdev);	entry = entry->next;
1761	return 0;	i++;
1762	}	}
1763
1764		if (!entry)
1765		return;
1766
1767	free(rootdev);	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		outName = buf;
1826		outName[rc] = '\0';
1827		}
1828
1829	if (isdigit(*kernel)) {	tmpOutName = alloca(strlen(outName) + 2);
1830	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	sprintf(tmpOutName, "%s-", outName);
1831		out = fopen(tmpOutName, "w");
1832		if (!out) {
1833		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834		tmpOutName, strerror(errno));
1835		return 1;
1836		}
1837
1838	i = 0;	if (!stat(outName, &sb)) {
1839	indexVars[i] = strtol(kernel, &chptr, 10);	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840	while (*chptr == ',') {	fprintf(stderr,
1841	i++;	_
1842	kernel = chptr + 1;	("grubby: error setting perms on %s: %s\n"),
1843	indexVars[i] = strtol(kernel, &chptr, 10);	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		entry = cfg->entries;
1954		while (entry) {
1955		if (!entry->skip)
1956		i++;
1957		entry = entry->next;
1958		}
1959		return i;
1960		}
1961
1962	if (!strncmp(kernel, "TITLE=", 6)) {	static char *findDiskForRoot()
1963	prefix = "";	{
1964	checkType = LT_TITLE;	int fd;
1965	kernel += 6;	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	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *foundanswer = NULL;
	if (entry->skip) continue;
1988
1989	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	while (chptr && chptr != buf + rc) {
1990		devname = chptr;
1991
1992	/* check all the lines matching checkType */	/*
1993	for (line = entry->lines; line; line = line->next) {	* The first column of a mtab entry is the device, but if the
1994	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	* entry is a special device it won't start with /, so move
1995	LT_KERNEL|LT_MBMODULE|LT_HYPER :	* on to the next line.
1996	checkType, line);	*/
1997	if (!line) break;  /* not found in this entry */	if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004	if (line && line->numElements >= 2) {	/* Seek to the next space */
2005	rootspec = getRootSpecifier(line->elements[1].item);	chptr = strchr(chptr, ' ');
2006	if (!strcmp(line->elements[1].item +	if (!chptr) {
2007	((rootspec != NULL) ? strlen(rootspec) : 0),	fprintf(stderr, "grubby: error parsing %s: %s\n",
2008	kernel + strlen(prefix)))	_PATH_MOUNTED, strerror(errno));
2009	break;	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	/* make sure this entry has a kernel identifier; this skips	/* Next line */
2022	* non-Linux boot entries (could find netbsd etc, though, which is	chptr = strchr(chptr, '\n');
2023	* unfortunate)	if (chptr)
2024	*/	chptr++;
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
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		for (line = entry->lines; line; line = line->next) {
2043		log_message(f, "DBG: %s", line->indent);
2044		for (i = 0; i < line->numElements; i++) {
2045		/* Need to handle this, because we strip the quotes from
2046		* menuentry when read it. */
2047		if (line->type == LT_MENUENTRY && i == 1) {
2048		if (!isquote(*line->elements[i].item))
2049		log_message(f, "\'%s\'",
2050		line->elements[i].item);
2051		else
2052		log_message(f, "%s",
2053		line->elements[i].item);
2054		log_message(f, "%s", line->elements[i].indent);
2055
2056	entry = cfg->entries;	continue;
2057	while (index && entry) {	}
	entry = entry->next;
	index--;
	}
2058
2059	return entry;	log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064		}
2065	}	}
2066
2067	/* Find a good template to use for the new kernel. An entry is	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068	* good if the kernel and mkinitrd exist (even if the entry	...)
2069	* is going to be removed). Try and use the default entry, but	{
2070	* if that doesn't work just take the first. If we can't find one,	static int once;
2071	* bail. */	va_list argp, argq;
	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;
	}
	}
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		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	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	/* sanity check */	* existence of the correct entry */
2581	if (removeHere >= line->numElements) return;	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2582		if (!config->isModified)
2583	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	indexToVerify--;
2584	removeHere, line->elements[removeHere].item);	}
	free(line->elements[removeHere].item);
2585
2586	if (removeHere > 1) {	/* verify the user selected index will exist */
2587	/* previous argument gets this argument's post-indentation */	if (findEntryByIndex(config, indexToVerify)) {
2588	free(line->elements[removeHere-1].indent);	config->defaultImage = newDefaultBootEntryIndex;
2589	line->elements[removeHere-1].indent =	} else {
2590	line->elements[removeHere].indent;	config->defaultImage = NO_DEFAULT_ENTRY;
2591	} else {	}
	free(line->elements[removeHere].indent);
	}
2592
2593	/* now collapse the array, but don't bother to realloc smaller */	return;
	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;
	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;
2594	}	}
	}
2595
2596	if (!removeArgs) {	/* handle cases where the index value may shift */
	oldArgs = malloc(sizeof(*oldArgs));
	*oldArgs = NULL;
	} else {
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
	}
	}
2597
2598		/* check validity of existing default or first-entry-found
2599		selection */
2600		if (defaultKernelPath) {
2601		/* we must initialize this */
2602		firstKernelEntryIndex = 0;
2603		/* user requested first-entry-found */
2604		if (!findEntryByPath(config, defaultKernelPath,
2605		prefix, &firstKernelEntryIndex)) {
2606		/* don't change default if can't find match */
2607		config->defaultImage = NO_DEFAULT_ENTRY;
2608		return;
2609		}
2610
2611	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	config->defaultImage = firstKernelEntryIndex;
	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
2612
2613	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	/* this is where we start looking for decrement later */
2614	&& !multibootArgs);	currentLookupIndex = config->defaultImage;
2615
2616	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	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	if (multibootArgs && !entry->multiboot)	if (isAddingBootEntry
2648	continue;	&& (newBootEntryIndex <= config->defaultImage)) {
2649		config->defaultImage++;
2650
2651	/* Determine where to put the args.  If this config supports	if (config->isModified) {
2652	* LT_KERNELARGS, use that.  Otherwise use	currentLookupIndex++;
2653	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	}
2654	*/	}
	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;
2655	}	}
2656
2657	/* handle the elilo case which does:	/* sanity check - is this entry index valid? */
2658	*   append="hypervisor args -- kernel args"	bootEntry = findEntryByIndex(config, currentLookupIndex);
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
	if (i < line->numElements && doreplace) {
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
2659
2660	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661	/* root= replacement */	/* entry is to be skipped or is invalid */
2662	rootLine = getLineByType(LT_ROOT, entry->lines);	if (isAddingBootEntry) {
2663	if (rootLine) {	config->defaultImage = newBootEntryIndex;
2664	free(rootLine->elements[1].item);	return;
2665	rootLine->elements[1].item = strdup(*arg + 5);	}
2666	} else {	newDefault =
2667	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	findTemplate(config, prefix, &config->defaultImage, 1,
2668	cfg->secondaryIndent, *arg + 5);	flags);
2669		if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671	}	}
	}
2672
2673	else {	return;
	/* insert/append */
	insertElement(line, *arg, i, cfg->cfi);
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
2674	}	}
	}
2675
2676	free(newArgs);	currentLookupIndex--;
	free(oldArgs);
2677
2678	return 0;	/* decrement index by the total number of entries deleted */
	}
2679
2680	int updateImage(struct grubConfig * cfg, const char * image,	for (indexToVerify = currentLookupIndex;
2681	const char * prefix, const char * addArgs,	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	const char * removeArgs,
	const char * addMBArgs, const char * removeMBArgs) {
	int rc = 0;
	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 updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line) return 1;
	break;
	}
2682
2683	return 0;	bootEntry = findEntryByIndex(config, indexToVerify);
	}
2684
2685	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	if (bootEntry && bootEntry->skip) {
2686	int fd;	config->defaultImage--;
2687	unsigned char bootSect[512];	}
2688	int offset;	}
2689		}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2690
2691	if (read(fd, bootSect, 512) != 512) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2692	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2693	device, strerror(errno));	struct singleEntry *entry, *entry2;
2694	return 1;	int j;
	}
	close(fd);
2695
2696	/* first three bytes should match, a jmp short should be in there */	if (config->fallbackImage == -1)
2697	if (memcmp(boot, bootSect, 3))	return;
	return 0;
2698
2699	if (boot[1] == 0xeb) {	entry = findEntryByIndex(config, config->fallbackImage);
2700	offset = boot[2] + 2;	if (!entry || entry->skip) {
2701	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	config->fallbackImage = -1;
2702	offset = (boot[3] << 8) + boot[2] + 2;	return;
2703	} 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;
	}
2704
2705	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (hasNew)
2706	return 0;	config->fallbackImage++;
2707
2708	return 2;	/* 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 checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	int fd;	{
2718	char buf[65536];	struct singleLine *line;
2719	char * end;	char *root = NULL;
2720	char * chptr;	int i;
2721	char * chptr2;	int j;
	int rc;
2722
2723	/* it's on raid; we need to parse /proc/mdstat and check all of the	printf("index=%d\n", index);
	*raw* devices listed in there */
2724
2725	if (!strncmp(mdDev, "/dev/", 5))	line =
2726	mdDev += 5;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727		entry->lines);
2728		if (!line) {
2729		printf("non linux entry\n");
2730		return;
2731		}
2732
2733	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	printf("kernel=%s\n", line->elements[1].item);
2735	strerror(errno));	else
2736	return 2;	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	}
2737
2738	rc = read(fd, buf, sizeof(buf) - 1);	if (line->numElements >= 3) {
2739	if (rc < 0 || rc == (sizeof(buf) - 1)) {	printf("args=\"");
2740	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	i = 2;
2741	strerror(errno));	while (i < line->numElements) {
2742	close(fd);	if (!strncmp(line->elements[i].item, "root=", 5)) {
2743	return 2;	root = line->elements[i].item + 5;
2744	}	} else {
2745	close(fd);	printf("%s%s", line->elements[i].item,
2746	buf[rc] = '\0';	line->elements[i].indent);
2747		}
2748
2749	chptr = buf;	i++;
2750	while (*chptr) {	}
2751	end = strchr(chptr, '\n');	printf("\"\n");
2752	if (!end) break;	} else {
2753	*end = '\0';	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	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	printf("%s%s", s,
2767	chptr[strlen(mdDev)] == ' ') {	line->elements[i].indent);
2768		}
2769
2770	/* found the device */	i++;
2771	while (*chptr && *chptr != ':') chptr++;	}
	chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
2772
2773	/*  we're good to go */	s = line->elements[i - 1].indent;
2774	return 2;	printf("\"\n");
2775		}
2776	}	}
2777
2778	chptr = end + 1;	if (!root) {
2779	}	line = getLineByType(LT_ROOT, entry->lines);
2780		if (line && line->numElements >= 2)
2781		root = line->elements[1].item;
2782		}
2783
2784	fprintf(stderr,	if (root) {
2785	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	char *s = alloca(strlen(root) + 1);
	mdDev);
	return 0;
	}
2786
2787	int checkForLilo(struct grubConfig * config) {	strcpy(s, root);
2788	int fd;	if (s[strlen(s) - 1] == '"')
2789	unsigned char boot[512];	s[strlen(s) - 1] = '\0';
2790	struct singleLine * line;	/* make sure the root doesn't have a trailing " */
2791		printf("root=%s\n", s);
2792	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;
	}
2793
2794	if (line->numElements != 2) return 1;	line =
2795		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2796		entry->lines);
2797
2798	fd = open("/boot/boot.b", O_RDONLY);	if (line && line->numElements >= 2) {
2799	if (fd < 0) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2800	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	printf("initrd=");
2801	"/boot/boot.b", strerror(errno));	else
2802	return 1;	printf("initrd=%s", prefix);
	}
2803
2804	if (read(fd, boot, 512) != 512) {	for (i = 1; i < line->numElements; i++)
2805	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	printf("%s%s", line->elements[i].item,
2806	"/boot/boot.b", strerror(errno));	line->elements[i].indent);
2807	return 1;	printf("\n");
2808	}	}
	close(fd);
2809
2810	if (!strncmp("/dev/md", line->elements[1].item, 7))	line = getLineByType(LT_TITLE, entry->lines);
2811	return checkLiloOnRaid(line->elements[1].item, boot);	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	return checkDeviceBootloader(line->elements[1].item, boot);	for (j = 0, line = entry->lines; line; line = line->next) {
2831		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2832		if (!strncmp
2833		(prefix, line->elements[1].item, strlen(prefix)))
2834		printf("mbmodule%d=", j);
2835		else
2836		printf("mbmodule%d=%s", j, prefix);
2837
2838		for (i = 1; i < line->numElements; i++)
2839		printf("%s%s", line->elements[i].item,
2840		line->elements[i].indent);
2841		printf("\n");
2842		j++;
2843		}
2844		}
2845	}	}
2846
2847	int checkForGrub(struct grubConfig * config) {	int isSuseSystem(void)
2848	int fd;	{
2849	unsigned char bootSect[512];	const char *path;
2850	char * boot;	const static char default_path[] = "/etc/SuSE-release";
	if (parseSysconfigGrub(NULL, &boot))
	return 0;
2851
2852	/* assume grub is not installed -- not an error condition */	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2853	if (!boot)	path = default_path;
	return 0;
2854
2855	fd = open("/boot/grub/stage1", O_RDONLY);	if (!access(path, R_OK))
2856	if (fd < 0)	return 1;
	/* this doesn't exist if grub hasn't been installed */
2857	return 0;	return 0;
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
	close(fd);
	return 1;
	}
	close(fd);
	return checkDeviceBootloader(boot, bootSect);
2858	}	}
2859
2860	int checkForExtLinux(struct grubConfig * config) {	int isSuseGrubConf(const char *path)
2861	int fd;	{
2862	unsigned char bootSect[512];	FILE *grubConf;
2863	char * boot;	char *line = NULL;
2864	char executable[] = "/boot/extlinux/extlinux";	size_t len = 0, res = 0;
2865
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	printf("entered: checkForExtLinux()\n");	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2882		path);
2883
2884	if (parseSysconfigGrub(NULL, &boot))	fclose(grubConf);
2885		free(line);
2886	return 0;	return 0;
2887		}
2888
2889	/* assume grub is not installed -- not an error condition */	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2890	if (!boot)	{
2891	return 0;	FILE *grubConf;
2892		char *line = NULL;
2893		size_t res = 0, len = 0;
2894
2895	fd = open(executable, O_RDONLY);	if (!path)
2896	if (fd < 0)	return 1;
2897	/* this doesn't exist if grub hasn't been installed */	if (!lbaPtr)
2898	return 0;	return 1;
2899
2900	if (read(fd, bootSect, 512) != 512) {	grubConf = fopen(path, "r");
2901	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (!grubConf)
2902	executable, strerror(errno));	return 1;
	return 1;
	}
	close(fd);
2903
2904	return checkDeviceBootloader(boot, bootSect);	while ((res = getline(&line, &len, grubConf)) != -1) {
2905	}	if (line[res - 1] == '\n')
2906		line[res - 1] = '\0';
2907		else if (len > res)
2908		line[res] = '\0';
2909		else {
2910		line = realloc(line, res + 1);
2911		line[res] = '\0';
2912		}
2913
2914	static char * getRootSpecifier(char * str) {	if (!strncmp(line, "setup", 5)) {
2915	char * idx, * rootspec = NULL;	if (strstr(line, "--force-lba")) {
2916		*lbaPtr = 1;
2917		} else {
2918		*lbaPtr = 0;
2919		}
2920		dbgPrintf("lba: %i\n", *lbaPtr);
2921		break;
2922		}
2923		}
2924
2925	if (*str == '(') {	free(line);
2926	idx = rootspec = strdup(str);	fclose(grubConf);
2927	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	return 0;
	*(++idx) = '\0';
	}
	return rootspec;
2928	}	}
2929
2930	static char * getInitrdVal(struct grubConfig * config,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2931	const char * prefix, struct singleLine *tmplLine,	{
2932	const char * newKernelInitrd,	FILE *grubConf;
2933	char ** extraInitrds, int extraInitrdCount)	char *line = NULL;
2934	{	size_t res = 0, len = 0;
2935	char *initrdVal, *end;	char *lastParamPtr = NULL;
2936	int i;	char *secLastParamPtr = NULL;
2937	size_t totalSize;	char installDeviceNumber = '\0';
2938	size_t prefixLen;	char *bounds = NULL;
	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;
	}
2939
2940	initrdVal = end = malloc(totalSize);	if (!path)
2941		return 1;
2942		if (!devicePtr)
2943		return 1;
2944
2945	end = stpcpy (end, newKernelInitrd + prefixLen);	grubConf = fopen(path, "r");
2946		if (!grubConf)
2947		return 1;
2948
2949	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	while ((res = getline(&line, &len, grubConf)) != -1) {
2950	for (i = 0; i < extraInitrdCount; i++) {	if (strncmp(line, "setup", 5))
2951	const char *extraInitrd;	continue;
2952	int j;
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	extraInitrd = extraInitrds[i] + prefixLen;	lastParamPtr = bounds = line + res;
	/* Don't add entries that are already there */
	if (tmplLine != NULL) {
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
2963
2964	if (j != tmplLine->numElements)	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2965	continue;	while (!isspace(*lastParamPtr))
2966	}	lastParamPtr--;
2967		lastParamPtr++;
2968
2969		secLastParamPtr = lastParamPtr - 2;
2970		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2971
2972		if (lastParamPtr + 3 > bounds) {
2973		dbgPrintf("lastParamPtr going over boundary");
2974		fclose(grubConf);
2975		free(line);
2976		return 1;
2977		}
2978		if (!strncmp(lastParamPtr, "(hd", 3))
2979		lastParamPtr += 3;
2980		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2981
2982		/*
2983		* Second last parameter will decide wether last parameter is
2984		* an IMAGE_DEVICE or INSTALL_DEVICE
2985		*/
2986		while (!isspace(*secLastParamPtr))
2987		secLastParamPtr--;
2988		secLastParamPtr++;
2989
2990		if (secLastParamPtr + 3 > bounds) {
2991		dbgPrintf("secLastParamPtr going over boundary");
2992		fclose(grubConf);
2993		free(line);
2994		return 1;
2995		}
2996		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2997		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2998		secLastParamPtr += 3;
2999		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
3000		installDeviceNumber = *secLastParamPtr;
3001		} else {
3002		installDeviceNumber = *lastParamPtr;
3003		}
3004
3005	*end++ = separatorChar;	*devicePtr = malloc(6);
3006	end = stpcpy(end, extraInitrd);	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 initrdVal;	free(line);
3014		fclose(grubConf);
3015		return 1;
3016	}	}
3017
3018	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3019	const char * prefix,	{
3020	char * newKernelPath, char * newKernelTitle,	FILE *deviceMap;
3021	char * newKernelArgs, char * newKernelInitrd,	char *line = NULL;
3022	char ** extraInitrds, int extraInitrdCount,	size_t res = 0, len = 0;
3023	char * newMBKernel, char * newMBKernelArgs) {	char *devicePtr;
3024	struct singleEntry * new;	char *bounds = NULL;
3025	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	const char *path;
3026	int needs;	const static char default_path[] = "/boot/grub/device.map";
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3027
3028	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (!device)
3029	while (findEntryByPath(config, buf, NULL, NULL)) {	return 1;
3030	sprintf(numBuf, "%d", i++);	if (!bootPtr)
3031	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	return 1;
	}
3032
3033	newKernelTitle = buf + 6;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3034	}	path = default_path;
3035
3036	new = malloc(sizeof(*new));	dbgPrintf("opening grub device.map file from: %s\n", path);
3037	new->skip = 0;	deviceMap = fopen(path, "r");
3038	new->multiboot = 0;	if (!deviceMap)
3039	new->next = config->entries;	return 1;
	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;
	}
3040
3041	if (template) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
3042	for (masterLine = template->lines;	if (!strncmp(line, "#", 1))
3043	masterLine && (tmplLine = lineDup(masterLine));	continue;
3044	lineFree(tmplLine), masterLine = masterLine->next)
3045	{	if (line[res - 1] == '\n')
3046	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	line[res - 1] = '\0';
3047		else if (len > res)
3048	/* skip comments */	line[res] = '\0';
3049	chptr = tmplLine->indent;	else {
3050	while (*chptr && isspace(*chptr)) chptr++;	line = realloc(line, res + 1);
3051	if (*chptr == '#') continue;	line[res] = '\0';
	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;
3052	}	}
3053
3054	case LT_HYPER:	devicePtr = line;
3055	newLine = addLine(new, config->cfi, LT_HYPER,	bounds = line + res;
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3056
3057	case LT_TITLE:	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	devicePtr++;
3059	char * templabel;	dbgPrintf("device: %s\n", devicePtr);
3060	int x = 0, y = 0;
3061		if (!strncmp(devicePtr, device, strlen(device))) {
3062	templabel = strdup(newKernelTitle);	devicePtr += strlen(device);
3063	while( templabel[x]){	while (isspace(*devicePtr)
3064	if( templabel[x] == ' ' ){	&& ((devicePtr + 1) <= bounds))
3065	y = x;	devicePtr++;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
	}
	}
	x++;
	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
	}
	needs &= ~NEED_TITLE;
	break;
3066
3067	default:	*bootPtr = strdup(devicePtr);
3068	abort();	break;
3069		}
3070	}	}
	}
3071
3072	/* add the remainder of the lines, i.e. those that either	free(line);
3073	* weren't present in the template, or in the case of no template,	fclose(deviceMap);
3074	* all the lines following the entrySeparator.	return 0;
3075	*/	}
	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;
	}
3076
3077	if (needs) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3078	printf(_("grubby: needs=%d, aborting\n"), needs);	{
3079	abort();	char *grubDevice;
	}
3080
3081	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082	newMBKernelArgs, NULL)) return 1;	dbgPrintf("error looking for grub installation device\n");
3083		else
3084		dbgPrintf("grubby installation device: %s\n", grubDevice);
3085
3086	return 0;	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		free(grubDevice);
3092		return 0;
3093	}	}
3094
3095	static void traceback(int signum)	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3096	{	{
3097	void *array[40];	/*
3098	size_t size;	* This SuSE grub configuration file at this location is not your
3099		* average grub configuration file, but instead the grub commands
3100		* used to setup grub on that system.
3101		*/
3102		const char *path;
3103		const static char default_path[] = "/etc/grub.conf";
3104
3105	signal(SIGSEGV, SIG_DFL);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3106	memset(array, '\0', sizeof (array));	path = default_path;
3107	size = backtrace(array, 40);
3108		if (!isSuseGrubConf(path))
	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);
3109	return 1;	return 1;
3110	}
3111	break;	if (lbaPtr) {
3112		*lbaPtr = 0;
3113		if (suseGrubConfGetLba(path, lbaPtr))
3114		return 1;
3115	}	}
	}
3116
3117	if (arg < -1) {	if (bootPtr) {
3118	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	*bootPtr = NULL;
3119	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	suseGrubConfGetBoot(path, bootPtr);
3120	poptStrerror(arg));	}
	return 1;
	}
3121
3122	if ((chptr = poptGetArg(optCon))) {	return 0;
3123	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	}
	return 1;
	}
3124
3125	if ((configureLilo + configureGrub + configureELilo +	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126	configureYaboot + configureSilo + configureZipl +	{
3127	configureExtLinux ) > 1) {	FILE *in;
3128	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	char buf[1024];
3129	return 1;	char *chptr;
3130	} else if (bootloaderProbe && grubConfig) {	char *start;
3131	fprintf(stderr,	char *param;
	_("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;
	}
3132
3133	if (!cfi) {	in = fopen("/etc/sysconfig/grub", "r");
3134	#ifdef __ia64__	if (!in)
3135	cfi = &eliloConfigType;	return 1;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
3136
3137	if (!grubConfig)	if (lbaPtr)
3138	grubConfig = cfi->defaultConfig;	*lbaPtr = 0;
3139		if (bootPtr)
3140		*bootPtr = NULL;
3141
3142		while (fgets(buf, sizeof(buf), in)) {
3143		start = buf;
3144		while (isspace(*start))
3145		start++;
3146		if (*start == '#')
3147		continue;
3148
3149		chptr = strchr(start, '=');
3150		if (!chptr)
3151		continue;
3152		chptr--;
3153		while (*chptr && isspace(*chptr))
3154		chptr--;
3155		chptr++;
3156		*chptr = '\0';
3157
3158		param = chptr + 1;
3159		while (*param && isspace(*param))
3160		param++;
3161		if (*param == '=') {
3162		param++;
3163		while (*param && isspace(*param))
3164		param++;
3165		}
3166
3167	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	chptr = param;
3168	newKernelPath || removeKernelPath || makeDefault ||	while (*chptr && !isspace(*chptr))
3169	defaultKernel)) {	chptr++;
3170	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	*chptr = '\0';
3171	"specified option"));
3172	return 1;	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	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	fclose(in);
	removeKernelPath)) {
	fprintf(stderr, _("grubby: --default-kernel and --info may not "
	"be used when adding or removing kernels\n"));
	return 1;
	}
3179
3180	if (newKernelPath && !newKernelTitle) {	return 0;
3181	fprintf(stderr, _("grubby: kernel title must be specified\n"));	}
	return 1;
	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||
	(newKernelInitrd && !updateKernelPath)||
	makeDefault || extraInitrdCount > 0)) {
	fprintf(stderr, _("grubby: kernel path expected\n"));
	return 1;
	}
3182
3183	if (newKernelPath && updateKernelPath) {	void dumpSysconfigGrub(void)
3184	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	{
3185	"not be used together"));	char *boot = NULL;
3186	return 1;	int lba;
	}
3187
3188	if (makeDefault && defaultKernel) {	if (isSuseSystem()) {
3189	fprintf(stderr, _("grubby: --make-default and --default-kernel "	if (parseSuseGrubConf(&lba, &boot)) {
3190	"may not be used together\n"));	free(boot);
3191	return 1;	return;
3192	} else if (defaultKernel && removeKernelPath &&	}
3193	!strcmp(defaultKernel, removeKernelPath)) {	} else {
3194	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	if (parseSysconfigGrub(&lba, &boot)) {
3195	return 1;	free(boot);
3196	} else if (defaultKernel && newKernelPath &&	return;
3197	!strcmp(defaultKernel, newKernelPath)) {	}
3198	makeDefault = 1;	}
	defaultKernel = NULL;
	}
3199
3200	if (!strcmp(grubConfig, "-") && !outputFile) {	if (lba)
3201	fprintf(stderr, _("grubby: output file must be specified if stdin "	printf("lba\n");
3202	"is used\n"));	if (boot) {
3203	return 1;	printf("boot=%s\n", boot);
3204	}	free(boot);
3205		}
3206		}
3207
3208	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3209	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	{
3210	&& !removeMBKernel) {	int i = 0;
3211	fprintf(stderr, _("grubby: no action specified\n"));	struct singleEntry *entry;
3212	return 1;	struct singleLine *line;
3213	}
3214		entry = findEntryByPath(config, kernel, prefix, &i);
3215		if (!entry) {
3216		fprintf(stderr, _("grubby: kernel not found\n"));
3217		return 1;
3218		}
3219
3220	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3221		be a better way */
3222		if (config->cfi == &grubConfigType) {
3223		dumpSysconfigGrub();
3224		} 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 (cfi->needsBootPrefix) {	line = getLineByType(LT_LBA, config->theLines);
3231	if (!bootPrefix) {	if (line)
3232	bootPrefix = findBootPrefix();	printf("lba\n");
	if (!bootPrefix) return 1;
	} else {
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
3233	}	}
	} else {
	bootPrefix = "";
	}
3234
3235	if (!cfi->mbAllowExtraInitRds &&	displayEntry(config, entry, prefix, i);
	extraInitrdCount > 0) {
	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);
	return 1;
	}
3236
3237	if (bootloaderProbe) {	i++;
3238	int lrc = 0, grc = 0, erc = 0;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239	struct grubConfig * lconfig, * gconfig;	displayEntry(config, entry, prefix, i);
3240		i++;
3241	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");
3242
3243	return 0;	return 0;
3244	}	}
3245
3246	config = readConfig(grubConfig, cfi);	struct singleLine *addLineTmpl(struct singleEntry *entry,
3247	if (!config) return 1;	struct singleLine *tmplLine,
3248		struct singleLine *prevLine,
3249		const char *val, struct configFileInfo *cfi)
3250		{
3251		struct singleLine *newLine = lineDup(tmplLine);
3252
3253	if (displayDefault) {	if (isEfi && cfi == &grub2ConfigType) {
3254	struct singleLine * line;	enum lineType_e old = newLine->type;
3255	struct singleEntry * entry;	newLine->type = preferredLineType(newLine->type, cfi);
3256	char * rootspec;	if (old != newLine->type)
3257		newLine->elements[0].item =
3258	if (config->defaultImage == -1) return 0;	getKeyByType(newLine->type, cfi);
3259	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));
3260
3261	return 0;	if (val) {
3262	} else if (kernelInfo)	/* override the inherited value with our own.
3263	return displayInfo(config, kernelInfo, bootPrefix);	* This is a little weak because it only applies to elements[1]
3264		*/
3265		if (newLine->numElements > 1)
3266		removeElement(newLine, 1);
3267		insertElement(newLine, val, 1, cfi);
3268
3269		/* but try to keep the rootspec from the template... sigh */
3270		if (tmplLine->
3271		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3272		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3273		LT_INITRD_16)) {
3274		char *rootspec =
3275		getRootSpecifier(tmplLine->elements[1].item);
3276		if (rootspec != NULL) {
3277		free(newLine->elements[1].item);
3278		newLine->elements[1].item =
3279		sdupprintf("%s%s", rootspec, val);
3280		}
3281		}
3282		}
3283
3284	if (copyDefault) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285	template = findTemplate(config, bootPrefix, NULL, 0, flags);	newLine->elements[0].item : "");
	if (!template) return 1;
	}
3286
3287	markRemovedImage(config, removeKernelPath, bootPrefix);	if (!entry->lines) {
3288	markRemovedImage(config, removeMBKernel, bootPrefix);	/* first one on the list */
3289	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	entry->lines = newLine;
3290	bootPrefix, flags);	} else if (prevLine) {
3291	setFallbackImage(config, newKernelPath != NULL);	/* add after prevLine */
3292	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	newLine->next = prevLine->next;
3293	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	prevLine->next = newLine;
3294	if (updateKernelPath && newKernelInitrd) {	}
3295	if (updateInitrd(config, updateKernelPath, bootPrefix,
3296	newKernelInitrd)) return 1;	return newLine;
3297	}	}
3298	if (addNewKernel(config, template, bootPrefix, newKernelPath,
3299	newKernelTitle, newKernelArgs, newKernelInitrd,	/* val may be NULL */
3300	extraInitrds, extraInitrdCount,	struct singleLine *addLine(struct singleEntry *entry,
3301	newMBKernel, newMBKernelArgs)) return 1;	struct configFileInfo *cfi,
3302		enum lineType_e type, char *defaultIndent,
3303		const char *val)
3304	if (numEntries(config) == 0) {	{
3305	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	struct singleLine *line, *prev;
3306	"Not writing out new config.\n"));	struct keywordTypes *kw;
3307	return 1;	struct singleLine tmpl;
3308	}
3309		/* 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		/* The last non-empty line gives us the indention to us and the line
3371		* to insert after. Note that comments are considered empty lines,
3372		* which may not be ideal? If there are no lines or we are looking at
3373		* the first line, we use defaultIndent (the first line is normally
3374		* indented differently from the rest) */
3375		for (line = entry->lines, prev = NULL; line; line = line->next) {
3376		if (line->numElements)
3377		prev = line;
3378		/* fall back on the last line if prev isn't otherwise set */
3379		if (!line->next && !prev)
3380		prev = line;
3381		}
3382
3383		struct singleLine *menuEntry;
3384		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3385		if (tmpl.type == LT_ENTRY_END) {
3386		if (menuEntry)
3387		tmpl.indent = menuEntry->indent;
3388		else
3389		tmpl.indent = defaultIndent ? : "";
3390		} else if (tmpl.type != LT_MENUENTRY) {
3391		if (menuEntry)
3392		tmpl.indent = "\t";
3393		else if (prev == entry->lines)
3394		tmpl.indent = defaultIndent ? : "";
3395		else
3396		tmpl.indent = prev->indent;
3397		}
3398
3399		return addLineTmpl(entry, &tmpl, prev, val, cfi);
3400		}
3401
3402		void removeLine(struct singleEntry *entry, struct singleLine *line)
3403		{
3404		struct singleLine *prev;
3405		int i;
3406
3407		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		if (line == entry->lines) {
3415		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		free(line);
3424		}
3425
3426		static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3427		{
3428		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		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3440		strcpy(c, tmplLine->elements[0].item);
3441		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		firstQuotedItem = -1;
3476		quoteLen = 0;
3477		}
3478		}
3479		}
3480		while (tmplLine->numElements)
3481		removeElement(tmplLine, 0);
3482		if (tmplLine->elements)
3483		free(tmplLine->elements);
3484
3485		tmplLine->numElements = newLine.numElements;
3486		tmplLine->elements = newLine.elements;
3487		}
3488
3489		static void insertElement(struct singleLine *line,
3490		const char *item, int insertHere,
3491		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		if (envPath)
5158		cfi->envFile = envPath;
5159		} else
5160		#ifdef __ia64__
5161		cfi = &eliloConfigType;
5162		#elif __powerpc__
5163		cfi = &yabootConfigType;
5164		#elif __sparc__
5165		cfi = &siloConfigType;
5166		#elif __s390__
5167		cfi = &ziplConfigType;
5168		#elif __s390x__
5169		cfi = &ziplConfigtype;
5170		#else
5171		cfi = &grubConfigType;
5172		#endif
5173		}
5174
5175		if (!grubConfig) {
5176		if (cfi->findConfig)
5177		grubConfig = cfi->findConfig(cfi);
5178		if (!grubConfig)
5179		grubConfig = cfi->defaultConfig;
5180		}
5181
5182		if (bootloaderProbe && (displayDefault || kernelInfo ||
5183		newKernelPath || removeKernelPath || makeDefault
5184		|| defaultKernel || displayDefaultIndex
5185		|| displayDefaultTitle
5186		|| (defaultIndex >= 0))) {
5187		fprintf(stderr,
5188		_("grubby: --bootloader-probe may not be used with "
5189		"specified option"));
5190		return 1;
5191		}
5192
5193		if ((displayDefault || kernelInfo) && (newKernelPath ||
5194		removeKernelPath)) {
5195		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5196		"be used when adding or removing kernels\n"));
5197		return 1;
5198		}
5199
5200		if (newKernelPath && !newKernelTitle) {
5201		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5202		return 1;
5203		} else if (!newKernelPath && (copyDefault ||
5204		(newKernelInitrd && !updateKernelPath) ||
5205		makeDefault || extraInitrdCount > 0)) {
5206		fprintf(stderr, _("grubby: kernel path expected\n"));
5207		return 1;
5208		}
5209
5210		if (newKernelPath && updateKernelPath) {
5211		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5212		"not be used together"));
5213		return 1;
5214		}
5215
5216		if (makeDefault && defaultKernel) {
5217		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5218		"may not be used together\n"));
5219		return 1;
5220		} else if (defaultKernel && removeKernelPath &&
5221		!strcmp(defaultKernel, removeKernelPath)) {
5222		fprintf(stderr,
5223		_("grubby: cannot make removed kernel the default\n"));
5224		return 1;
5225		} else if (defaultKernel && newKernelPath &&
5226		!strcmp(defaultKernel, newKernelPath)) {
5227		makeDefault = 1;
5228		defaultKernel = NULL;
5229		} else if (defaultKernel && (defaultIndex >= 0)) {
5230		fprintf(stderr,
5231		_("grubby: --set-default and --set-default-index "
5232		"may not be used together\n"));
5233		return 1;
5234		}
5235
5236		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5237		fprintf(stderr,
5238		_("grubby: output file must be specified if stdin "
5239		"is used\n"));
5240		return 1;
5241		}
5242
5243		if (!removeKernelPath && !newKernelPath && !displayDefault
5244		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5245		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5246		&& !displayDefaultTitle && (defaultIndex == -1)) {
5247		fprintf(stderr, _("grubby: no action specified\n"));
5248		return 1;
5249		}
5250
5251		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5252
5253		if (cfi->needsBootPrefix) {
5254		if (!bootPrefix) {
5255		bootPrefix = findBootPrefix();
5256		if (!bootPrefix)
5257		return 1;
5258		} else {
5259		/* this shouldn't end with a / */
5260		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5261		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5262		}
5263		} else {
5264		bootPrefix = "";
5265		}
5266
5267		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5268		fprintf(stderr,
5269		_("grubby: %s doesn't allow multiple initrds\n"),
5270		cfi->defaultConfig);
5271		return 1;
5272		}
5273
5274		if (bootloaderProbe) {
5275		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5276		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5277
5278		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5279		if (grub2config) {
5280		gconfig = readConfig(grub2config, &grub2ConfigType);
5281		if (!gconfig)
5282		gr2c = 1;
5283		else
5284		gr2c = checkForGrub2(gconfig);
5285		}
5286
5287		const char *grubconfig = grubFindConfig(&grubConfigType);
5288		if (!access(grubconfig, F_OK)) {
5289		gconfig = readConfig(grubconfig, &grubConfigType);
5290		if (!gconfig)
5291		grc = 1;
5292		else
5293		grc = checkForGrub(gconfig);
5294		}
5295
5296		if (!access(liloConfigType.defaultConfig, F_OK)) {
5297		lconfig =
5298		readConfig(liloConfigType.defaultConfig,
5299		&liloConfigType);
5300		if (!lconfig)
5301		lrc = 1;
5302		else
5303		lrc = checkForLilo(lconfig);
5304		}
5305
5306		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5307		econfig = readConfig(eliloConfigType.defaultConfig,
5308		&eliloConfigType);
5309		if (!econfig)
5310		erc = 1;
5311		else
5312		erc = checkForElilo(econfig);
5313		}
5314
5315		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5316		lconfig =
5317		readConfig(extlinuxConfigType.defaultConfig,
5318		&extlinuxConfigType);
5319		if (!lconfig)
5320		extrc = 1;
5321		else
5322		extrc = checkForExtLinux(lconfig);
5323		}
5324
5325		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5326		yconfig = readConfig(yabootConfigType.defaultConfig,
5327		&yabootConfigType);
5328		if (!yconfig)
5329		yrc = 1;
5330		else
5331		yrc = checkForYaboot(yconfig);
5332		}
5333
5334		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5335		|| erc == 1)
5336		return 1;
5337
5338		if (lrc == 2)
5339		printf("lilo\n");
5340		if (gr2c == 2)
5341		printf("grub2\n");
5342		if (grc == 2)
5343		printf("grub\n");
5344		if (extrc == 2)
5345		printf("extlinux\n");
5346		if (yrc == 2)
5347		printf("yaboot\n");
5348		if (erc == 2)
5349		printf("elilo\n");
5350
5351		return 0;
5352		}
5353
5354		if (grubConfig == NULL) {
5355		printf("Could not find bootloader configuration file.\n");
5356		exit(1);
5357		}
5358
5359		config = readConfig(grubConfig, cfi);
5360		if (!config)
5361		return 1;
5362
5363		if (displayDefault) {
5364		struct singleLine *line;
5365		struct singleEntry *entry;
5366		char *rootspec;
5367
5368		if (config->defaultImage == NO_DEFAULT_ENTRY)
5369		return 0;
5370		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5371		cfi->defaultIsSaved)
5372		config->defaultImage = FIRST_ENTRY_INDEX;
5373		entry = findEntryByIndex(config, config->defaultImage);
5374		if (!entry)
5375		return 0;
5376		if (!suitableImage(entry, bootPrefix, 0, flags))
5377		return 0;
5378
5379		line =
5380		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5381		LT_KERNEL_16, entry->lines);
5382		if (!line)
5383		return 0;
5384
5385		rootspec = getRootSpecifier(line->elements[1].item);
5386		printf("%s%s\n", bootPrefix, line->elements[1].item +
5387		((rootspec != NULL) ? strlen(rootspec) : 0));
5388
5389		return 0;
5390
5391		} else if (displayDefaultTitle) {
5392		struct singleLine *line;
5393		struct singleEntry *entry;
5394
5395		if (config->defaultImage == NO_DEFAULT_ENTRY)
5396		return 0;
5397		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5398		cfi->defaultIsSaved)
5399		config->defaultImage = FIRST_ENTRY_INDEX;
5400		entry = findEntryByIndex(config, config->defaultImage);
5401		if (!entry)
5402		return 0;
5403
5404		if (!configureGrub2) {
5405		char *title;
5406		line = getLineByType(LT_TITLE, entry->lines);
5407		if (!line)
5408		return 0;
5409		title = extractTitle(config, line);
5410		if (!title)
5411		return 0;
5412		printf("%s\n", title);
5413		free(title);
5414		} else {
5415		char *title;
5416
5417		dbgPrintf
5418		("This is GRUB2, default title is embeded in menuentry\n");
5419		line = getLineByType(LT_MENUENTRY, entry->lines);
5420		if (!line)
5421		return 0;
5422		title = grub2ExtractTitle(line);
5423		if (title)
5424		printf("%s\n", title);
5425		}
5426		return 0;
5427
5428		} else if (displayDefaultIndex) {
5429		if (config->defaultImage == NO_DEFAULT_ENTRY)
5430		return 0;
5431		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5432		cfi->defaultIsSaved)
5433		config->defaultImage = FIRST_ENTRY_INDEX;
5434		printf("%i\n", config->defaultImage);
5435		return 0;
5436
5437		} else if (kernelInfo)
5438		return displayInfo(config, kernelInfo, bootPrefix);
5439
5440		if (copyDefault) {
5441		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5442		if (!template)
5443		return 1;
5444		}
5445
5446		markRemovedImage(config, removeKernelPath, bootPrefix);
5447		markRemovedImage(config, removeMBKernel, bootPrefix);
5448		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5449		makeDefault, bootPrefix, flags, defaultIndex,
5450		newIndex);
5451		setFallbackImage(config, newKernelPath != NULL);
5452		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5453		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5454		return 1;
5455		if (updateKernelPath && newKernelInitrd) {
5456		if (newMBKernel) {
5457		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5458		bootPrefix, newKernelInitrd,
5459		newKernelTitle))
5460		return 1;
5461		} else {
5462		if (updateInitrd(config, updateKernelPath, bootPrefix,
5463		newKernelInitrd, newKernelTitle))
5464		return 1;
5465		}
5466		}
5467		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5468		newKernelTitle, newKernelArgs, newKernelInitrd,
5469		(const char **)extraInitrds, extraInitrdCount,
5470		newMBKernel, newMBKernelArgs, newDevTreePath,
5471		newIndex))
5472		return 1;
5473
5474		if (numEntries(config) == 0) {
5475		fprintf(stderr,
5476		_("grubby: doing this would leave no kernel entries. "
5477		"Not writing out new config.\n"));
5478		return 1;
5479		}
5480
5481	if (!outputFile)	if (!outputFile)
5482	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5483
5484	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5485	}	}

---

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Legend: Removed from v.1332   changed lines   Added in v.3136