Diff of /trunk/grubby/grubby.c

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	trunk/mkinitrd-magellan/grubby/grubby.c revision 532 by niro, Sat Sep 1 22:45:15 2007 UTC	trunk/grubby/grubby.c revision 3136 by niro, Tue Jul 7 11:09:37 2020 UTC
#	Line 1	Line 1
1	/* Copyright (C) 2001-2005 Red Hat, Inc.	/*
2		* grubby.c
3	This program is free software; you can redistribute it and/or	*
4	modify it under the terms of the General Public License as published	* Copyright (C) 2001-2008 Red Hat, Inc.
5	by the Free Software Foundation; either version 2 of the License, or	* All rights reserved.
6	(at your option) any later version.	*
7		* This program is free software; you can redistribute it and/or modify
8	This program is distributed in the hope that it will be useful,	* it under the terms of the GNU General Public License as published by
9	but WITHOUT ANY WARRANTY; without even the implied warranty of	* the Free Software Foundation; either version 2 of the License, or
10	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU	* (at your option) any later version.
11	General Public License for more details.	*
12		* This program is distributed in the hope that it will be useful,
13	You should have received a copy of the GNU General Public	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	License along with this program; if not, write to the Free	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA	* GNU General Public License for more details.
16	02111-1307 USA.  */	*
17		* You should have received a copy of the GNU General Public License
18		* along with this program.  If not, see <http://www.gnu.org/licenses/>.
19		*/
20
21		#ifndef _GNU_SOURCE
22		#define _GNU_SOURCE
23		#endif
24	#include <ctype.h>	#include <ctype.h>
25	#include <errno.h>	#include <errno.h>
26	#include <fcntl.h>	#include <fcntl.h>
#	Line 25	Line 31
31	#include <string.h>	#include <string.h>
32	#include <sys/stat.h>	#include <sys/stat.h>
33	#include <unistd.h>	#include <unistd.h>
34		#include <libgen.h>
35		#include <execinfo.h>
36		#include <signal.h>
37		#include <blkid/blkid.h>
38
39		#include "log.h"
40
41		#ifndef DEBUG
42		#define DEBUG 0
43		#endif
44
45		#if DEBUG
46		#define dbgPrintf(format, args...) fprintf(stderr, format , ## args)
47		#else
48		#define dbgPrintf(format, args...)
49		#endif
50
51	#include "mount_by_label.h"	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 */
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 { LT_WHITESPACE, LT_TITLE, LT_KERNEL, LT_INITRD, LT_DEFAULT,	enum lineType_e {
78	LT_UNKNOWN, LT_ROOT, LT_FALLBACK, LT_KERNELARGS, LT_BOOT,	LT_UNIDENTIFIED = 0,
79	LT_BOOTROOT, LT_LBA, LT_MBMODULE, LT_OTHER, LT_GENERIC };	LT_WHITESPACE = 1 << 0,
80		LT_TITLE = 1 << 1,
81		LT_KERNEL = 1 << 2,
82		LT_INITRD = 1 << 3,
83		LT_HYPER = 1 << 4,
84		LT_DEFAULT = 1 << 5,
85		LT_MBMODULE = 1 << 6,
86		LT_ROOT = 1 << 7,
87		LT_FALLBACK = 1 << 8,
88		LT_KERNELARGS = 1 << 9,
89		LT_BOOT = 1 << 10,
90		LT_BOOTROOT = 1 << 11,
91		LT_LBA = 1 << 12,
92		LT_OTHER = 1 << 13,
93		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)
122
123	#define GRUB_CONFIG_NO_DEFAULT    (1 << 0) /* don't write out default=0 */	#define GRUB_CONFIG_NO_DEFAULT    (1 << 0) /* don't write out default=0 */
124
125	#define KERNEL_KERNEL    (1 << 0)	/* These defines are (only) used in addNewKernel() */
126	#define KERNEL_INITRD    (1 << 2)	#define NEED_KERNEL  (1 << 0)
127	#define KERNEL_TITLE    (1 << 3)	#define NEED_INITRD  (1 << 1)
128	#define KERNEL_ARGS    (1 << 4)	#define NEED_TITLE   (1 << 2)
129	#define KERNEL_MB           (1 << 5)	#define NEED_ARGS    (1 << 3)
130		#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;
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 defaultSupportSaved;
168		int defaultIsSaved;
169		int defaultIsUnquoted;
170		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	{ NULL,    0, 0 },	{"kernel", LT_HYPER, ' '},
193		{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		.titlePosition = 1,
230		};
231
232		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[] = {
569		{"label", LT_TITLE, '='},
570		{"root", LT_ROOT, '='},
571		{"default", LT_DEFAULT, '='},
572		{"image", LT_KERNEL, '='},
573		{"initrd", LT_INITRD, '='},
574		{"append", LT_KERNELARGS, '='},
575		{"vmm", LT_HYPER, '='},
576		{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[] = {
601		{"label", LT_TITLE, ' '},
602		{"root", LT_ROOT, ' '},
603		{"default", LT_DEFAULT, ' '},
604		{"kernel", LT_KERNEL, ' '},
605		{"initrd", LT_INITRD, ' ', ','},
606		{"append", LT_KERNELARGS, ' '},
607		{"prompt", LT_UNKNOWN, ' '},
608		{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613		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	liloKeywords,    /* 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 */
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 */
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 */
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 */
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 */
	15,    /* maxTitleLength */
	1,                                      /* titleBracketed */
660	};	};
661
662	struct grubConfig {	struct configFileInfo extlinuxConfigType = {
663	struct singleLine * theLines;	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	struct singleEntry * entries;	.keywords = extlinuxKeywords,
665	char * primaryIndent;	.caseInsensitive = 1,
666	char * secondaryIndent;	.entryStart = LT_TITLE,
667	int defaultImage;    /* -1 if none specified -- this value is	.needsBootPrefix = 1,
668	* written out, overriding original */	.maxTitleLength = 255,
669	int fallbackImage;    /* just like defaultImage */	.mbAllowExtraInitRds = 1,
670	int flags;	.defaultIsUnquoted = 1,
671	struct configFileInfo * cfi;	.titlePosition = 1,
672	};	};
673
674		struct grubConfig {
675		struct singleLine *theLines;
676		struct singleEntry *entries;
677		char *primaryIndent;
678		char *secondaryIndent;
679		int defaultImage; /* -1 if none specified -- this value is
680		* written out, overriding original */
681		int fallbackImage; /* just like defaultImage */
682		int flags;
683		struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686		};
687
688	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	blkid_cache blkid;
	struct singleEntry * findEntryByPath(struct grubConfig * cfg,
	const char * path, const char * prefix,
	int * index);
	static char * strndup(char * from, int len);
	static int readFile(int fd, char ** bufPtr);
	static void lineInit(struct singleLine * line);
	static void lineFree(struct singleLine * line);
	static int lineWrite(FILE * out, struct singleLine * line,
	struct configFileInfo * cfi);
	static int getNextLine(char ** bufPtr, struct singleLine * line,
	struct configFileInfo * cfi);
	static char * getRootSpecifier(char * str);
	static char * strndup(char * from, int len) {
	char * to;
	to = malloc(len + 1);
	strncpy(to, from, len);
	to[len] = '\0';
689
690	return to;	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	}	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692		const char *path, const char *prefix,
693		int *index);
694		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695		int *index);
696		static int readFile(int fd, char **bufPtr);
697		static void lineInit(struct singleLine *line);
698		struct singleLine *lineDup(struct singleLine *line);
699		static void lineFree(struct singleLine *line);
700		static int lineWrite(FILE * out, struct singleLine *line,
701		struct configFileInfo *cfi);
702		static int getNextLine(char **bufPtr, struct singleLine *line,
703		struct configFileInfo *cfi);
704		static char *getRootSpecifier(char *str);
705		static void requote(struct singleLine *line, struct configFileInfo *cfi);
706		static void insertElement(struct singleLine *line,
707		const char *item, int insertHere,
708		struct configFileInfo *cfi);
709		static void removeElement(struct singleLine *line, int removeHere);
710		static struct keywordTypes *getKeywordByType(enum lineType_e type,
711		struct configFileInfo *cfi);
712		static enum lineType_e getTypeByKeyword(char *keyword,
713		struct configFileInfo *cfi);
714		static struct singleLine *getLineByType(enum lineType_e type,
715		struct singleLine *line);
716		static int checkForExtLinux(struct grubConfig *config);
717		struct singleLine *addLineTmpl(struct singleEntry *entry,
718		struct singleLine *tmplLine,
719		struct singleLine *prevLine,
720		const char *val, struct configFileInfo *cfi);
721		struct singleLine *addLine(struct singleEntry *entry,
722		struct configFileInfo *cfi,
723		enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	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	va_end(args);
748	va_start(args, format);	va_end(args);
749		va_start(args, format);
750	buf = malloc(size);
751	if (buf == NULL)	buf = malloc(size);
752	return NULL;	if (buf == NULL)
753	vsnprintf(buf, size, format, args);	return NULL;
754	va_end (args);	vsnprintf(buf, size, format, args);
755		va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static int isBracketedTitle(struct singleLine * line) {	static inline int
761	if ((*line->elements[0].item == '[') && (line->numElements == 1)) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	int len = strlen(line->elements[0].item);	{
763	if (*(line->elements[0].item + len - 1) == ']') {	int kwl = strlen(kw->key);
764	/* FIXME: this is a hack... */	int ll = strlen(label);
765	if (strcmp(line->elements[0].item, "[defaultboot]")) {	int rc;
766	return 1;	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 0;	return 0;
785	}	}
786
787	/* figure out if this is a entry separator */	static enum lineType_e preferredLineType(enum lineType_e type,
788	static int isEntrySeparator(struct singleLine * line,	struct configFileInfo *cfi)
789	struct configFileInfo * cfi) {	{
790	if (line->type == LT_WHITESPACE)	if (isEfi && cfi == &grub2ConfigType) {
791	return 0;	switch (type) {
792	if (line->type == cfi->entrySeparator)	case LT_KERNEL:
793	return 1;	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	if (line->type == LT_OTHER)	case LT_INITRD:
795	return 1;	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	if (cfi->titleBracketed && isBracketedTitle(line)) {	default:
797	return 1;	return type;
798	}	}
799	return 0;	#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	/* extract the title from within brackets (for zipl) */	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	static char * extractTitle(struct singleLine * line) {	struct configFileInfo *cfi)
816	/* bracketed title... let's extract it (leaks a byte) */	{
817	char * title;	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	title = strdup(line->elements[0].item);	if (kw->type == type)
819	title++;	return kw;
820	*(title + strlen(title) - 1) = '\0';	}
821	return title;	return NULL;
822	}	}
	static int readFile(int fd, char ** bufPtr) {
	int alloced = 0, size = 0, i = 0;
	char * buf = NULL;
	do {
	size += i;
	if ((size + 1024) > alloced) {
	alloced += 4096;
	buf = realloc(buf, alloced + 1);
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
823
824	buf = realloc(buf, size + 2);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	if (size == 0)	{
826	buf[size++] = '\n';	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	else	if (kt)
828	if (buf[size - 1] != '\n')	return kt->key;
829	buf[size++] = '\n';	return "unknown";
830	buf[size] = '\0';	}
831
832	*bufPtr = buf;	static char *getpathbyspec(char *device)
833		{
834		if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return 0;	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static void lineInit(struct singleLine * line) {	static char *getuuidbydev(char *device)
841	line->indent = NULL;	{
842	line->elements = NULL;	if (!blkid)
843	line->numElements = 0;	blkid_get_cache(&blkid, NULL);
844	line->next = NULL;
845		return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static void lineFree(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
849	int i;	struct configFileInfo *cfi)
850		{
851		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	if (line->indent) free(line->indent);	static struct singleLine *getLineByType(enum lineType_e type,
859		struct singleLine *line)
860		{
861		dbgPrintf("getLineByType(%d): ", type);
862		for (; line; line = line->next) {
863		dbgPrintf("%d:%s ", line->type,
864		line->numElements ? line->elements[0].
865		item : "(empty)");
866		if (line->type & type)
867		break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871		}
872
873	for (i = 0; i < line->numElements; i++) {	static int isBracketedTitle(struct singleLine *line)
874	free(line->elements[i].item);	{
875	free(line->elements[i].indent);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	}	int len = strlen(line->elements[0].item);
877		if (*(line->elements[0].item + len - 1) == ']') {
878		/* FIXME: this is a hack... */
879		if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885		}
886
887	if (line->elements) free(line->elements);	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	lineInit(line);	{
889		return line->type == cfi->entryStart || line->type == LT_OTHER ||
890		(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	static int lineWrite(FILE * out, struct singleLine * line,	/* extract the title from within brackets (for zipl) */
894	struct configFileInfo * cfi) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	int i;	{
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	if (fprintf(out, "%s", line->indent) == -1) return -1;	static int readFile(int fd, char **bufPtr)
915		{
916		int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919		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	for (i = 0; i < line->numElements; i++) {	if (i < 0) {
928	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	fprintf(stderr, _("error reading input: %s\n"),
929	if (fputc('"', out) == EOF) return -1;	strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	buf = realloc(buf, size + 2);
935	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	if (size == 0)
936	}	buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	*bufPtr = buf;
	if (fputc('"', out) == EOF) return -1;
942
943	if (fprintf(out, "\n") == -1) return -1;	return 0;
944		}
945
946	return 0;	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	/* we've guaranteed that the buffer ends w/ \n\0 */	struct singleLine *lineDup(struct singleLine *line)
956	static int getNextLine(char ** bufPtr, struct singleLine * line,	{
957	struct configFileInfo * cfi) {	struct singleLine *newLine = malloc(sizeof(*newLine));
958	char * end;
959	char * start = *bufPtr;	newLine->indent = strdup(line->indent);
960	char * chptr;	newLine->next = NULL;
961	int elementsAlloced = 0;	newLine->type = line->type;
962	struct lineElement * element;	newLine->numElements = line->numElements;
963	struct keywordTypes * keywords = cfi->keywords;	newLine->elements = malloc(sizeof(*newLine->elements) *
964	int first = 1;	newLine->numElements);
965	int i;
966		for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971		return newLine;
972		}
973
974	lineFree(line);	static void lineFree(struct singleLine *line)
975		{
976		if (line->indent)
977		free(line->indent);
978
979	end = strchr(start, '\n');	for (int i = 0; i < line->numElements; i++) {
980	*end = '\0';	free(line->elements[i].item);
981	*bufPtr = end + 1;	free(line->elements[i].indent);
982		}
983
984	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987		}
988
989	line->indent = strndup(start, chptr - start);	static int lineWrite(FILE * out, struct singleLine *line,
990	start = chptr;	struct configFileInfo *cfi)
991		{
992		if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995		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	while (start < end) {	continue;
1023	/* we know !isspace(*start) */	}
1024
1025	if (elementsAlloced == line->numElements) {	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026	elementsAlloced += 5;	if (fputc('"', out) == EOF)
1027	line->elements = realloc(line->elements,	return -1;
1028	sizeof(*line->elements) * elementsAlloced);
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	element = line->elements + line->numElements;	if (fprintf(out, "\n") == -1)
1041		return -1;
1042
1043	chptr = start;	return 0;
1044	while (*chptr && !isspace(*chptr)) {	}
1045	if (first && *chptr == '=') break;
1046	chptr++;	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	}	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	element->item = strndup(start, chptr - start);	struct configFileInfo *cfi)
1049	start = chptr;	{
1050		char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057		lineFree(line);
1058
1059		end = strchr(start, '\n');
1060		*end = '\0';
1061		*bufPtr = end + 1;
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	for (i = 0; keywords[i].key; i++)	sizeof(*line->elements) *
1075	if (!strcmp(line->elements[0].item, keywords[i].key)) break;	elementsAlloced);
1076		}
	if (keywords[i].key) {
	line->type = keywords[i].type;
	} else {
	line->type = LT_UNKNOWN;
	/* zipl does [title] instead of something reasonable like all
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115		if (line->type == LT_UNKNOWN) {
1116		/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122		/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150		line->type = LT_WHITESPACE;
1151		line->numElements = 0;
1152		}
1153		} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156		kw = getKeywordByType(line->type, cfi);
1157
1158		/* space isn't the only separator, we need to split
1159		* elements up more
1160		*/
1161		if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186		for (int j = line->numElements; j > i;
1187		j--) {
1188		line->elements[j +
1189		numNewElements] =
1190		line->elements[j];
1191		}
1192		line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248		}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	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 {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	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	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	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;
	}
1325
1326	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	entry->multiboot = 0;	sawEntry = 1;
1328	entry->lines = NULL;	if (!entry) {
1329	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	if (line->type == LT_DEFAULT && line->numElements == 2) {	entry->next = malloc(sizeof(*entry));
1333	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	entry = entry->next;
1334	defaultLine = line;	}
1335	} else if (line->type == LT_MBMODULE) {
1336	entry->multiboot = 1;	entry->skip = 0;
1337	} else if (line->type == LT_FALLBACK && line->numElements == 2) {	entry->multiboot = 0;
1338	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);	entry->lines = NULL;
1339	if (*end) cfg->fallbackImage = -1;	entry->next = NULL;
1340	} else if (line->type == LT_TITLE && line->numElements > 1) {	}
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1341
1342	for (i = 1; i < line->numElements; i++) {	if (line->type == LT_SET_VARIABLE) {
1343	strcat(buf, line->elements[i].item);	dbgPrintf("found 'set' command (%d elements): ",
1344	free(line->elements[i].item);	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		} else if (line->type == LT_MBMODULE) {
1369		/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386		} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389		} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408		for (int i = 1; i < line->numElements; i++) {
1409		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		line->elements[1].indent =
1419		line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437		/* allocate mem for extra flags. */
1438		extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455		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		/* 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 (!strcmp
1476		(line->elements[i].item, "menuentry"))
1477		continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487		len = strlen(line->elements[i].item);
1488
1489		if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493		/* 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 (isquote(*line->elements[1].item))
1511		memmove(line->elements[1].item,
1512		line->elements[1].item + 1,
1513		strlen(line->elements[1].item +
1514		1) + 1);
1515
1516		last = line->numElements - 1;
1517		len = strlen(line->elements[last].item) - 1;
1518		if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520		}
1521		}
1522
1523	if ((i + 1) != line->numElements) {	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	strcat(buf, line->elements[i].indent);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	free(line->elements[i].indent);	defaultLine = line;
1526	}	}
	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (*line->elements[1].item == '"')
	memcpy(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';
	}
1527
1528	}	/* If we find a generic config option which should live at the
1529		top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	/* If we find a generic config option which should live at the	/* If a second line of whitespace happens after a generic
1547	top of the file, move it there. Old versions of grubby were	* option which was moved, drop it. */
1548	probably responsible for putting new images in the wrong	if (movedLine && line->type == LT_WHITESPACE
1549	place in front of it anyway. */	&& last->type == LT_WHITESPACE) {
1550	if (sawEntry && line->type == LT_GENERIC) {	lineFree(line);
1551	struct singleLine **l = &cfg->theLines;	free(line);
1552	struct singleLine **last_nonws = &cfg->theLines;	movedLine = 0;
1553	while (*l) {	continue;
1554	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);
1555	movedLine = 0;	movedLine = 0;
	continue;
	}
	movedLine = 0;
	if (sawEntry) {
	if (!entry->lines)
	entry->lines = line;
	else
	last->next = line;
	} else {
	if (!cfg->theLines)
	cfg->theLines = line;
	else {
	last->next = line;
	}
	}
1556
1557	last = line;	if (sawEntry) {
1558	}	if (!entry->lines)
1559		entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565		/* we could have seen this outside of an entry... if
1566		* so, we ignore it like any other line we don't grok
1567		*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	free(incoming);	last = line;
1580		}
1581
1582	if (defaultLine) {	free(incoming);
	if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	}
1583
1584	if (entry) cfg->defaultImage = i;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694	}	}
	}
1695
1696	return cfg;	return cfg;
1697	}	}
1698
1699	static void writeDefault(FILE * out, char * indent,	static void writeDefault(FILE * out, char *indent,
1700	char * separator, struct grubConfig * cfg) {	char *separator, struct grubConfig *cfg)
1701	struct singleEntry * entry;	{
1702	struct singleLine * line;	struct singleEntry *entry;
1703	int i;	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 (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785	if (cfg->defaultImage == DEFAULT_SAVED)	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	fprintf(out, "%sdefault%ssaved\n", indent, separator);	const char *prefix)
1787	else if (cfg->defaultImage > -1) {	{
1788	if (cfg->cfi->defaultIsIndex) {	FILE *out;
1789	fprintf(out, "%sdefault%s%d\n", indent, separator,	struct singleLine *line;
1790	cfg->defaultImage);	struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800	} else {	} else {
1801	int image = cfg->defaultImage;	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803	entry = cfg->entries;	int len = 256;
1804	while (entry && entry->skip) entry = entry->next;	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	i = 0;	outName = buf;
1826	while (entry && i < image) {	outName[rc] = '\0';
1827	entry = entry->next;	}
1828
1829	while (entry && entry->skip) entry = entry->next;	tmpOutName = alloca(strlen(outName) + 2);
1830	i++;	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	if (!entry) return;	if (!stat(outName, &sb)) {
1839		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840		fprintf(stderr,
1841		_
1842		("grubby: error setting perms on %s: %s\n"),
1843		tmpOutName, strerror(errno));
1844		fclose(out);
1845		unlink(tmpOutName);
1846		return 1;
1847		}
1848		}
1849		}
1850
1851	line = entry->lines;	line = cfg->theLines;
1852	while (line && line->type != LT_TITLE) line = line->next;	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	if (line && line->numElements >= 2)	line = line->next;
	fprintf(out, "%sdefault%s%s\n", indent, separator,
	line->elements[1].item);
	else if (line && (line->numElements == 1) &&
	cfg->cfi->titleBracketed) {
	fprintf(out, "%sdefault%s%s\n", indent, separator,
	extractTitle(line));
	}
1883	}	}
	}
	}
	static int writeConfig(struct grubConfig * cfg, char * outName,
	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 / */
	rc = chdir("/");
	do {
	buf = alloca(len + 1);
	rc = readlink(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;
	}
	}
	}
1884
1885	line = cfg->theLines;	if (needs & MAIN_DEFAULT) {
1886	while (line) {	writeDefault(out, cfg->primaryIndent, "=", cfg);
1887	if (line->type == LT_DEFAULT) {	needs &= ~MAIN_DEFAULT;
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
1888	}	}
1889
1890	line = line->next;	i = 0;
1891	}	while ((entry = findEntryByIndex(cfg, i++))) {
1892		if (entry->skip)
1893		continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907		}
1908
1909	if (needs & MAIN_DEFAULT) {	if (tmpOutName) {
1910	writeDefault(out, cfg->primaryIndent, "=", cfg);	/* write userspace buffers */
1911	needs &= ~MAIN_DEFAULT;	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	i = 0;	/* fsync() the destination directory after rename */
1927	while ((entry = findEntryByIndex(cfg, i++))) {	if (rc == 0) {
1928	if (entry->skip) continue;	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	line = entry->lines;	if (dirfd >= 0)
1937	while (line) {	close(dirfd);
1938	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;
	}
	}
1939
1940	if (tmpOutName) {	if (rc == 1)
1941	if (rename(tmpOutName, outName)) {	fprintf(stderr,
1942	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	_("grubby: error flushing data: %m\n"));
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1943	}	}
	}
1944
1945	return 0;	return rc;
1946	}	}
1947
1948	static int numEntries(struct grubConfig *cfg) {	static int numEntries(struct grubConfig *cfg)
1949	int i = 0;	{
1950	struct singleEntry * entry;	int i = 0;
1951		struct singleEntry *entry;
1952	entry = cfg->entries;
1953	while (entry) {	entry = cfg->entries;
1954	if (!entry->skip)	while (entry) {
1955	i++;	if (!entry->skip)
1956	entry = entry->next;	i++;
1957	}	entry = entry->next;
1958	return i;	}
1959		return i;
1960	}	}
1961
1962	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	static char *findDiskForRoot()
1963	int skipRemoved, int flags) {	{
1964	struct singleLine * line;	int fd;
1965	char * fullName;	char buf[65536];
1966	int i;	char *devname;
1967	struct stat sb, sb2;	char *chptr;
1968	char * dev;	int rc;
1969	char * end;
1970	char * rootspec;	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971		fprintf(stderr, "grubby: failed to open %s: %s\n",
1972	line = entry->lines;	_PATH_MOUNTED, strerror(errno));
1973	while (line && line->type != LT_KERNEL) line = line->next;	return NULL;
1974		}
1975	if (!line) return 0;
1976	if (skipRemoved && entry->skip) return 0;	rc = read(fd, buf, sizeof(buf) - 1);
1977	if (line->numElements < 2) return 0;	if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981	fullName = alloca(strlen(bootPrefix) +	return NULL;
	strlen(line->elements[1].item) + 1);
	rootspec = getRootSpecifier(line->elements[1].item);
	sprintf(fullName, "%s%s", bootPrefix,
	line->elements[1].item + ((rootspec != NULL) ?
	strlen(rootspec) : 0));
	if (access(fullName, R_OK)) return 0;
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = entry->lines;
	while (line && line->type != LT_ROOT) line = line->next;
	if (line && line->numElements >= 2) {
	dev = line->elements[1].item;
	} else {
	int type;
	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS */
	line = entry->lines;
	type = ((entry->multiboot) ? LT_MBMODULE : LT_KERNELARGS);
	while (line && line->type != type) line = line->next;
	/* 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;
	}
1982	}	}
1983	}	close(fd);
1984		buf[rc] = '\0';
1985	if (!strncmp(dev, "LABEL=", 6)) {	chptr = buf;
	dev += 6;
	/* check which device has this label */
	dev = get_spec_by_volume_label(dev, &i, &i);
	if (!dev) return 0;
	}
1986
1987	if (*dev == '/') {	char *foundanswer = NULL;
	if (stat(dev, &sb))
	return 0;
	} else {
	sb.st_rdev = strtol(dev, &end, 16);
	if (*end) return 0;
	}
	stat("/", &sb2);
1988
1989	if (sb.st_rdev != sb2.st_dev) return 0;	while (chptr && chptr != buf + rc) {
1990		devname = chptr;
1991
1992	return 1;	/*
1993	}	* The first column of a mtab entry is the device, but if the
1994		* entry is a special device it won't start with /, so move
1995		* on to the next line.
1996		*/
1997		if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004	/* returns the first match on or after the one pointed to by index (if index	/* Seek to the next space */
2005	is not NULL) which is not marked as skip */	chptr = strchr(chptr, ' ');
2006	struct singleEntry * findEntryByPath(struct grubConfig * config,	if (!chptr) {
2007	const char * kernel, const char * prefix,	fprintf(stderr, "grubby: error parsing %s: %s\n",
2008	int * index) {	_PATH_MOUNTED, strerror(errno));
2009	struct singleEntry * entry = NULL;	return NULL;
2010	struct singleLine * line;	}
	int i;
	char * chptr;
	char * rootspec = NULL;
	enum lineType_e checkType = LT_KERNEL;
2011
2012	if (isdigit(*kernel)) {	/*
2013	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	* 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	i = 0;	/* Next line */
2022	indexVars[i] = strtol(kernel, &chptr, 10);	chptr = strchr(chptr, '\n');
2023	while (*chptr == ',') {	if (chptr)
2024	i++;	chptr++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
2025	}	}
2026
2027	if (*chptr) {	/* Return the last / entry found */
2028	/* can't parse it, bail */	if (foundanswer) {
2029	return NULL;	chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032	}	}
2033
2034	indexVars[i + 1] = -1;	return NULL;
2035		}
2036	i = 0;
2037	if (index) {	void printEntry(struct singleEntry *entry, FILE * f)
2038	while (i < *index) i++;	{
2039	if (indexVars[i] == -1) return NULL;	int i;
2040		struct singleLine *line;
2041
2042		for (line = entry->lines; line; line = line->next) {
2043		log_message(f, "DBG: %s", line->indent);
2044		for (i = 0; i < line->numElements; i++) {
2045		/* Need to handle this, because we strip the quotes from
2046		* menuentry when read it. */
2047		if (line->type == LT_MENUENTRY && i == 1) {
2048		if (!isquote(*line->elements[i].item))
2049		log_message(f, "\'%s\'",
2050		line->elements[i].item);
2051		else
2052		log_message(f, "%s",
2053		line->elements[i].item);
2054		log_message(f, "%s", line->elements[i].indent);
2055
2056		continue;
2057		}
2058
2059		log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064	}	}
2065		}
2066
2067		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069		{
2070		static int once;
2071		va_list argp, argq;
2072
2073		va_start(argp, fmt);
2074
2075		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		printEntry(entry, NULL);
2085		va_end(argq);
2086
2087		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093		if (okay) {
2094		va_end(argp);
2095		return;
2096		}
2097
2098		if (!once)
2099		log_message(stderr, "DBG: command line: %s\n",
2100		saved_command_line);
2101		once = 1;
2102		fprintf(stderr, "DBG: Image entry failed: ");
2103		vfprintf(stderr, fmt, argp);
2104		printEntry(entry, stderr);
2105		va_end(argp);
2106		}
2107
2108	entry = findEntryByIndex(config, indexVars[i]);	#define beginswith(s, c) ((s) && (s)[0] == (c))
	if (!entry) return NULL;
2109
2110	line = entry->lines;	static int endswith(const char *s, char c)
2111	while (line && line->type != LT_KERNEL)	{
2112	line = line->next;	int slen;
2113
2114	if (!line) return NULL;	if (!s || !s[0])
2115		return 0;
2116		slen = strlen(s) - 1;
2117
2118	if (index) *index = indexVars[i];	return s[slen] == c;
2119	return entry;	}
2120	}
2121		int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	if (!strcmp(kernel, "DEFAULT")) {	int skipRemoved, int flags)
2123	if (index && *index > config->defaultImage) {	{
2124	entry = NULL;	struct singleLine *line;
2125	} else {	char *fullName;
2126	entry = findEntryByIndex(config, config->defaultImage);	int i;
2127	if (entry && entry->skip)	char *dev;
2128	entry = NULL;	char *rootspec;
2129	else if (index)	char *rootdev;
2130	*index = config->defaultImage;
2131		if (skipRemoved && entry->skip) {
2132		notSuitablePrintf(entry, 0, "marked to skip\n");
2133		return 0;
2134		}
2135
2136		line =
2137		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138		entry->lines);
2139		if (!line) {
2140		notSuitablePrintf(entry, 0, "no line found\n");
2141		return 0;
2142		}
2143		if (line->numElements < 2) {
2144		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145		line->numElements);
2146		return 0;
2147	}	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2148
2149	while ((entry = findEntryByIndex(config, i))) {	if (flags & GRUBBY_BADIMAGE_OKAY) {
2150	if (!entry->skip) break;	notSuitablePrintf(entry, 1, "\n");
2151	i++;	return 1;
2152	}	}
2153
2154	if (entry && index)	fullName = alloca(strlen(bootPrefix) +
2155	*index = i;	strlen(line->elements[1].item) + 1);
2156	} else {	rootspec = getRootSpecifier(line->elements[1].item);
2157	if (index)	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2158	i = *index;	int hasslash = endswith(bootPrefix, '/') ||
2159	else	beginswith(line->elements[1].item + rootspec_offset, '/');
2160	i = 0;	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2161		line->elements[1].item + rootspec_offset);
2162		if (access(fullName, R_OK)) {
2163		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2164		return 0;
2165		}
2166		for (i = 2; i < line->numElements; i++)
2167		if (!strncasecmp(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements) {
2170		dev = line->elements[i].item + 5;
2171		} else {
2172		/* look for a lilo style LT_ROOT line */
2173		line = getLineByType(LT_ROOT, entry->lines);
2174
2175	if (!strncmp(kernel, "TITLE=", 6)) {	if (line && line->numElements >= 2) {
2176	prefix = "";	dev = line->elements[1].item;
2177	checkType = LT_TITLE;	} else {
2178	kernel += 6;	/* didn't succeed in finding a LT_ROOT, let's try
2179	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2180		* for the args, so check that too.
2181	while ((entry = findEntryByIndex(config, i))) {	*/
2182	line = entry->lines;	line =
2183	while (line && line->type != checkType) line=line->next;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2184		entry->lines);
2185
2186	if (line && line->numElements >= 2 && !entry->skip) {	/* failed to find one */
2187	rootspec = getRootSpecifier(line->elements[1].item);	if (!line) {
2188	if (!strcmp(line->elements[1].item  +	notSuitablePrintf(entry, 0, "no line found\n");
2189	((rootspec != NULL) ? strlen(rootspec) : 0),	return 0;
2190	kernel + strlen(prefix)))	}
2191	break;
2192	}	for (i = 1; i < line->numElements; i++)
2193		if (!strncasecmp
2194	/* have to check multiboot lines too */	(line->elements[i].item, "root=", 5))
2195	if (entry->multiboot) {	break;
2196	while (line && line->type != LT_MBMODULE) line = line->next;	if (i < line->numElements)
2197	if (line && line->numElements >= 2 && !entry->skip) {	dev = line->elements[i].item + 5;
2198	rootspec = getRootSpecifier(line->elements[1].item);	else {
2199	if (!strcmp(line->elements[1].item  +	notSuitablePrintf(entry, 0,
2200	((rootspec != NULL) ? strlen(rootspec) : 0),	"no root= entry found\n");
2201	kernel + strlen(prefix)))	/* it failed too...  can't find root= */
2202	break;	return 0;
2203	}	}
2204	}	}
2205		}
2206
2207	i++;	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	if (index) *index = i;	free(rootdev);
2238	}	notSuitablePrintf(entry, 1, "\n");
2239
2240	if (!entry) return NULL;	return 1;
2241		}
2242
2243	/* make sure this entry has a kernel identifier; this skips non-Linux	/* returns the first match on or after the one pointed to by index (if index
2244	boot entries (could find netbsd etc, though, which is unfortunate) */	is not NULL) which is not marked as skip */
2245	line = entry->lines;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2246	while (line && line->type != LT_KERNEL) line = line->next;	const char *kernel, const char *prefix,
2247	if (!line) {	int *index)
2248	if (!index) index = &i;	{
2249	(*index)++;	struct singleEntry *entry = NULL;
2250	return findEntryByPath(config, kernel, prefix, index);	struct singleLine *line;
2251	}	int i;
2252		char *chptr;
2253		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		if (*chptr) {
2268		/* can't parse it, bail */
2269		return NULL;
2270		}
2271
2272		indexVars[i + 1] = -1;
2273
2274		i = 0;
2275		if (index) {
2276		while (i < *index) {
2277		i++;
2278		if (indexVars[i] == -1)
2279		return NULL;
2280		}
2281		}
2282
2283		entry = findEntryByIndex(config, indexVars[i]);
2284		if (!entry)
2285		return NULL;
2286
2287		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 {
2302		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		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		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		/* make sure this entry has a kernel identifier; this skips
2374		* 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		return entry;
2389		}
2390
2391		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2392		int *index)
2393		{
2394		struct singleEntry *entry;
2395		struct singleLine *line;
2396		int i;
2397		char *newtitle;
2398
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		if (!entry)
2415		return NULL;
2416
2417	return entry;	if (index)
2418		*index = i;
2419		return entry;
2420	}	}
2421
2422	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2423	struct singleEntry * entry;	{
2424		struct singleEntry *entry;
2425
2426	entry = cfg->entries;	entry = cfg->entries;
2427	while (index && entry) {	while (index && entry) {
2428	entry = entry->next;	entry = entry->next;
2429	index--;	index--;
2430	}	}
2431
2432	return entry;	return entry;
2433	}	}
2434
2435	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1142  struct singleEntry * findEntryByIndex(st	Line 2437  struct singleEntry * findEntryByIndex(st
2437	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2438	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2439	* bail. */	* bail. */
2440	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2441	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2442	struct singleEntry * entry, * entry2;	{
2443	int index;	struct singleEntry *entry, *entry2;
2444		int index;
2445	if (cfg->defaultImage > -1) {
2446	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2447	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2448	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2449	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2450		if (defTitle) {
2451		int index = 0;
2452		if (isnumber(defTitle)) {
2453		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	index = 0;	index = 0;
2480	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2481	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2482	int j;	int j, unmodifiedIndex;
2483	for (j = 0; j < index; j++) {
2484	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2485	if (entry2->skip) index--;
2486	}	for (j = 0; j < unmodifiedIndex; j++) {
2487	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2488		if (entry2->skip)
2489		index--;
2490		}
2491		if (indexPtr)
2492		*indexPtr = index;
2493
2494	return entry;	return entry;
2495	}	}
2496
2497	index++;	index++;
2498	}	}
2499
2500	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2501		_("grubby fatal error: unable to find a suitable template\n"));
2502
2503	return NULL;	return NULL;
2504	}	}
2505
2506	char * findBootPrefix(void) {	char *findBootPrefix(void)
2507	struct stat sb, sb2;	{
2508		struct stat sb, sb2;
2509
2510	stat("/", &sb);	stat("/", &sb);
2511	#ifdef __ia64__	#ifdef __ia64__
2512	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2513	#else	#else
2514	stat("/boot", &sb2);	stat("/boot", &sb2);
2515	#endif	#endif
2516
2517	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2518	return strdup("");	return strdup("");
2519
2520	#ifdef __ia64__	#ifdef __ia64__
2521	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2522	#else	#else
2523	return strdup("/boot");	return strdup("/boot");
2524	#endif	#endif
2525	}	}
2526
2527	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2528	const char * prefix) {	const char *prefix)
2529	struct singleEntry * entry;	{
2530		struct singleEntry *entry;
2531	if (!image) return;
2532		if (!image)
2533	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	return;
2534	entry->skip = 1;
2535	}	/* check and see if we're removing the default image */
2536		if (isdigit(*image)) {
2537	void setDefaultImage(struct grubConfig * config, int hasNew,	entry = findEntryByPath(cfg, image, prefix, NULL);
2538	const char * defaultKernelPath, int newIsDefault,	if (entry)
2539	const char * prefix, int flags) {	entry->skip = 1;
2540	struct singleEntry * entry, * entry2, * newDefault;	return;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2541	}	}
	}
2542
2543	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2544	changes */	entry->skip = 1;
	if (config->defaultImage == DEFAULT_SAVED)
	/* default is set to saved, we don't want to change it */
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2545	}	}
2546
2547	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2548	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2549	int j;	const char *prefix, int flags,
2550		int newDefaultBootEntryIndex, int newBootEntryIndex)
2551	if (config->fallbackImage == -1) return;	{
2552		struct singleEntry *bootEntry, *newDefault;
2553	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2554	if (!entry || entry->skip) {
2555	config->fallbackImage = -1;	/* initialize */
2556	return;	currentLookupIndex = FIRST_ENTRY_INDEX;
2557	}
2558		/* handle the two cases where the user explictly picks the default
2559		* boot entry index as it would exist post-modification */
2560
2561		/* Case 1: user chose to make the latest boot entry the default */
2562		if (newBootEntryIsDefault) {
2563		config->defaultImage = newBootEntryIndex;
2564		return;
2565		}
2566
2567		/* Case 2: user picked an arbitrary index as the default boot entry */
2568		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2569		indexToVerify = newDefaultBootEntryIndex;
2570
2571		/* user chose to make latest boot entry the default */
2572		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2573		config->defaultImage = newBootEntryIndex;
2574		return;
2575		}
2576
2577	if (hasNew)	/* the user picks the default index based on the
2578	config->fallbackImage++;	* order of the bootloader configuration after
2579		* modification; ensure we are checking for the
2580	/* count the number of entries erased before this one */	* existence of the correct entry */
2581	for (j = 0; j < config->fallbackImage; j++) {	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2582	entry2 = findEntryByIndex(config, j);	if (!config->isModified)
2583	if (entry2->skip) config->fallbackImage--;	indexToVerify--;
2584	}	}
	}
2585
2586	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* verify the user selected index will exist */
2587	struct singleLine * line;	if (findEntryByIndex(config, indexToVerify)) {
2588	char * root = NULL;	config->defaultImage = newDefaultBootEntryIndex;
2589	int i;	} else {
2590		config->defaultImage = NO_DEFAULT_ENTRY;
2591	line = entry->lines;	}
	while (line && line->type != LT_KERNEL) line = line->next;
	printf("index=%d\n", index);
	printf("kernel=%s\n", line->elements[1].item);
	if (line->numElements >= 3) {
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2592
2593	i++;	return;
2594	}	}
	printf("\"\n");
	} else {
	line = entry->lines;
	while (line && line->type != LT_KERNELARGS) line=line->next;
	if (line) {
	char * s;
2595
2596	printf("args=\"");	/* handle cases where the index value may shift */
	i = 1;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2597
2598	printf("%s%s", s, line->elements[i].indent);	/* 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	i++;	config->defaultImage = firstKernelEntryIndex;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
	}
	}
2612
2613	if (!root) {	/* this is where we start looking for decrement later */
2614	line = entry->lines;	currentLookupIndex = config->defaultImage;
	while (line && line->type != LT_ROOT) line = line->next;
2615
2616	if (line && line->numElements >= 2)	if (isAddingBootEntry && !config->isModified &&
2617	root=line->elements[1].item;	(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 (root) {	if (isAddingBootEntry
2648	char * s = alloca(strlen(root) + 1);	&& (newBootEntryIndex <= config->defaultImage)) {
2649		config->defaultImage++;
2650	strcpy(s, root);
2651	if (s[strlen(s) - 1] == '"')	if (config->isModified) {
2652	s[strlen(s) - 1] = '\0';	currentLookupIndex++;
2653	/* make sure the root doesn't have a trailing " */	}
2654	printf("root=%s\n", s);	}
2655	}	}
2656
2657	line = entry->lines;	/* sanity check - is this entry index valid? */
2658	while (line && line->type != LT_INITRD) line = line->next;	bootEntry = findEntryByIndex(config, currentLookupIndex);
2659
2660	if (line && line->numElements >= 2) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661	printf("initrd=%s", prefix);	/* entry is to be skipped or is invalid */
2662	for (i = 1; i < line->numElements; i++)	if (isAddingBootEntry) {
2663	printf("%s%s", line->elements[i].item, line->elements[i].indent);	config->defaultImage = newBootEntryIndex;
2664	printf("\n");	return;
2665	}	}
2666	}	newDefault =
2667		findTemplate(config, prefix, &config->defaultImage, 1,
2668		flags);
2669		if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671		}
2672
2673	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	return;
2674	FILE * in;	}
	char buf[1024];
	char * chptr;
	char * start;
	char * param;
	in = fopen("/etc/sysconfig/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);
	}
2675
2676	fclose(in);	currentLookupIndex--;
2677
2678	return 0;	/* decrement index by the total number of entries deleted */
	}
2679
2680	void dumpSysconfigGrub(void) {	for (indexToVerify = currentLookupIndex;
2681	char * boot;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
	}
2682
2683	int displayInfo(struct grubConfig * config, char * kernel,	bootEntry = findEntryByIndex(config, indexToVerify);
	const char * prefix) {
	int i = 0;
	struct singleEntry * entry;
	struct singleLine * line;
	entry = findEntryByPath(config, kernel, prefix, &i);
	if (!entry) {
	fprintf(stderr, _("grubby: kernel not found\n"));
	return 1;
	}
2684
2685	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (bootEntry && bootEntry->skip) {
2686	be a better way */	config->defaultImage--;
2687	if (config->cfi == &grubConfigType) {	}
	dumpSysconfigGrub();
	} else {
	line = config->theLines;
	while (line && line->type != LT_BOOT) line = line->next;
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
2688	}	}
2689		}
2690
2691	line = config->theLines;	void setFallbackImage(struct grubConfig *config, int hasNew)
2692	while (line && line->type != LT_LBA) line = line->next;	{
2693	if (line) printf("lba\n");	struct singleEntry *entry, *entry2;
2694	}	int j;
2695
2696	displayEntry(entry, prefix, i);	if (config->fallbackImage == -1)
2697		return;
2698
2699		entry = findEntryByIndex(config, config->fallbackImage);
2700		if (!entry || entry->skip) {
2701		config->fallbackImage = -1;
2702		return;
2703		}
2704
2705	i++;	if (hasNew)
2706	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	config->fallbackImage++;
	displayEntry(entry, prefix, i);
	i++;
	}
2707
2708	return 0;	/* count the number of entries erased before this one */
2709		for (j = 0; j < config->fallbackImage; j++) {
2710		entry2 = findEntryByIndex(config, j);
2711		if (entry2->skip)
2712		config->fallbackImage--;
2713		}
2714	}	}
2715
2716	/* val may be NULL */	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	struct singleLine *  addLine(struct singleEntry * entry,	{
2718	struct configFileInfo * cfi,	struct singleLine *line;
2719	enum lineType_e type, const char * defaultIndent,	char *root = NULL;
2720	char * val) {	int i;
2721	struct singleLine * line, * prev;	int j;
2722	int i;
2723		printf("index=%d\n", index);
2724	for (i = 0; cfi->keywords[i].key; i++)
2725	if (cfi->keywords[i].type == type) break;	line =
2726	if (type != LT_TITLE || !cfi->titleBracketed)	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727	if (!cfi->keywords[i].key) abort();	entry->lines);
2728		if (!line) {
2729	/* The last non-empty line gives us the indention to us and the line	printf("non linux entry\n");
2730	to insert after. Note that comments are considered empty lines, which	return;
	may not be ideal? If there are no lines or we are looking at the
	first line, we use defaultIndent (the first line is normally indented
	differently from the rest) */
	if (entry->lines) {
	line = entry->lines;
	prev = NULL;
	while (line) {
	if (line->numElements) prev = line;
	line = line->next;
2731	}	}
	if (!prev) {
	/* just use the last line */
	prev = entry->lines;
	while (prev->next) prev = prev->next;
	}
	line = prev->next;
	prev->next = malloc(sizeof(*line));
	prev->next->next = line;
	line = prev->next;
2732
2733	if (prev == entry->lines)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	line->indent = strdup(defaultIndent);	printf("kernel=%s\n", line->elements[1].item);
2735	else	else
2736	line->indent = strdup(prev->indent);	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	} else {
	line = malloc(sizeof(*line));
	line->indent = strdup(defaultIndent);
	line->next = NULL;
	}
	if (type != LT_TITLE || !cfi->titleBracketed) {
	line->type = type;
	line->numElements = val ? 2 : 1;
	line->elements = malloc(sizeof(*line->elements) * line->numElements);
	line->elements[0].item = strdup(cfi->keywords[i].key);
	line->elements[0].indent = malloc(2);
	line->elements[0].indent[0] = cfi->keywords[i].nextChar;
	line->elements[0].indent[1] = '\0';
	if (val) {
	line->elements[1].item = val;
	line->elements[1].indent = strdup("");
	}
	} else {
	/* we're doing the title of a bracketed title (zipl) */
	line->type = type;
	line->numElements = 1;
	line->elements = malloc(sizeof(*line->elements) * line->numElements);
	line->elements[0].item = malloc(strlen(val) + 3);
	sprintf(line->elements[0].item, "[%s]", val);
	line->elements[0].indent = strdup("");
	}
	return line;
	}
2737
2738	void removeLine(struct singleEntry * entry, struct singleLine * line) {	if (line->numElements >= 3) {
2739	struct singleLine * prev;	printf("args=\"");
2740	int i;	i = 2;
2741		while (i < line->numElements) {
2742		if (!strncmp(line->elements[i].item, "root=", 5)) {
2743		root = line->elements[i].item + 5;
2744		} else {
2745		printf("%s%s", line->elements[i].item,
2746		line->elements[i].indent);
2747		}
2748
2749	for (i = 0; i < line->numElements; i++) {	i++;
2750	free(line->elements[i].item);	}
2751	free(line->elements[i].indent);	printf("\"\n");
2752	}	} else {
2753	free(line->elements);	line = getLineByType(LT_KERNELARGS, entry->lines);
2754	free(line->indent);	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		printf("%s%s", s,
2767		line->elements[i].indent);
2768		}
2769
2770	if (line == entry->lines) {	i++;
2771	entry->lines = line->next;	}
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2772
2773	free(line);	s = line->elements[i - 1].indent;
2774	}	printf("\"\n");
2775		}
2776		}
2777
2778	int argMatch(const char * one, const char * two) {	if (!root) {
2779	char * first, * second;	line = getLineByType(LT_ROOT, entry->lines);
2780	char * chptr;	if (line && line->numElements >= 2)
2781		root = line->elements[1].item;
	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, j, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	const char * chptr;
	int useKernelArgs = 0;
	int useRoot = 0;
	int firstElement;
	int *usedElements, *usedArgs;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
2782	}	}
	}
2783
2784	if (!removeArgs) {	if (root) {
2785	oldArgs = malloc(sizeof(*oldArgs));	char *s = alloca(strlen(root) + 1);
2786	*oldArgs = NULL;
2787	} else {	strcpy(s, root);
2788	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	if (s[strlen(s) - 1] == '"')
2789	fprintf(stderr,	s[strlen(s) - 1] = '\0';
2790	_("grubby: error separating arguments '%s'\n"), removeArgs);	/* make sure the root doesn't have a trailing " */
2791	free(newArgs);	printf("root=%s\n", s);
	return 1;
2792	}	}
	}
2793
2794	for (i = 0; cfg->cfi->keywords[i].key; i++)	line =
2795	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2796		entry->lines);
2797
2798	if (cfg->cfi->keywords[i].key)	if (line && line->numElements >= 2) {
2799	useKernelArgs = 1;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2800		printf("initrd=");
2801		else
2802		printf("initrd=%s", prefix);
2803
2804	for (i = 0; cfg->cfi->keywords[i].key; i++)	for (i = 1; i < line->numElements; i++)
2805	if (cfg->cfi->keywords[i].type == LT_ROOT) break;	printf("%s%s", line->elements[i].item,
2806		line->elements[i].indent);
2807		printf("\n");
2808		}
2809
2810	if (cfg->cfi->keywords[i].key)	line = getLineByType(LT_TITLE, entry->lines);
2811	useRoot = 1;	if (line) {
2812		char *entryTitle;
2813	k = 0;	/* if we can extractTitle, then it's a zipl config and
2814	for (arg = newArgs; *arg; arg++)	* if not then we go ahead with what's existed prior */
2815	k++;	entryTitle = extractTitle(config, line);
2816	usedArgs = calloc(k, sizeof(int));	if (!entryTitle) {
2817		entryTitle=line->elements[1].item;
	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {
	index++;
	line = entry->lines;
	while (line && line->type != LT_KERNEL) line = line->next;
	if (!line) continue;
	firstElement = 2;
	if (entry->multiboot && !multibootArgs) {
	/* first mb module line is the real kernel */
	while (line && line->type != LT_MBMODULE) line = line->next;
	firstElement = 2;
	} else if (useKernelArgs) {
	while (line && line->type != LT_KERNELARGS) line = line->next;
	firstElement = 1;
	}
	if (!line && useKernelArgs) {
	/* no append in there, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS, NULL, NULL);
	}
	usedElements = calloc(line->numElements, sizeof(int));
	k = 0;
	for (arg = newArgs; *arg; arg++) {
	if (usedArgs[k]) {
	k++;
	continue;
	}
	for (i = firstElement; i < line->numElements; i++) {
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	usedArgs[k]=1;
	break;
2818	}	}
2819	}	printf("title=%s\n", entryTitle);
2820	chptr = strchr(*arg, '=');	} else {
2821		char *title;
2822	if (i < line->numElements) {	line = getLineByType(LT_MENUENTRY, entry->lines);
2823	/* replace */	if (line) {
2824	free(line->elements[i].item);	title = grub2ExtractTitle(line);
2825	line->elements[i].item = strdup(*arg);	if (title)
2826	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10) && *chptr) {	printf("title=%s\n", title);
	rootLine = entry->lines;
	while (rootLine && rootLine->type != LT_ROOT)
	rootLine = rootLine->next;
	if (!rootLine) {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT, NULL, NULL);
	rootLine->elements = realloc(rootLine->elements,
	2 * sizeof(*rootLine->elements));
	rootLine->numElements++;
	rootLine->elements[1].indent = strdup("");
	rootLine->elements[1].item = strdup("");
	}
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(chptr + 1);
	} else {
	/* append */
	line->elements = realloc(line->elements,
	(line->numElements + 1) * sizeof(*line->elements));
	line->elements[line->numElements].item = strdup(*arg);
	usedElements = realloc(usedElements,
	(line->numElements + 1) * sizeof(int));
	usedElements[line->numElements] = 1;
	if (line->numElements > 1) {
	/* add to existing list of arguments */
	line->elements[line->numElements].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[line->numElements - 1].indent = strdup(" ");
	} else {
	/* First thing on this line; treat a bit differently. Note
	this is only possible if we've added a LT_KERNELARGS
	entry */
	line->elements[line->numElements].indent = strdup("");
2827	}	}
2828		}
2829
2830	line->numElements++;	for (j = 0, line = entry->lines; line; line = line->next) {
2831		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2832	/* if we updated a root= here even though there is a	if (!strncmp
2833	LT_ROOT available we need to remove the LT_ROOT entry	(prefix, line->elements[1].item, strlen(prefix)))
2834	(this will happen if we switch from a device to a label) */	printf("mbmodule%d=", j);
2835	if (useRoot && !strncmp(*arg, "root=", 5)) {	else
2836	rootLine = entry->lines;	printf("mbmodule%d=%s", j, prefix);
2837	while (rootLine && rootLine->type != LT_ROOT)
2838	rootLine = rootLine->next;	for (i = 1; i < line->numElements; i++)
2839	if (rootLine) {	printf("%s%s", line->elements[i].item,
2840	removeLine(entry, rootLine);	line->elements[i].indent);
2841	}	printf("\n");
2842	}	j++;
	}
	k++;
	}
	free(usedElements);
	/* no arguments to remove (i.e. no append line) */
	if (!line) continue;
	/* this won't remove an LT_ROOT item properly (but then again,
	who cares? */
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++)
	if (!argMatch(line->elements[i].item, *arg))
	break;
	if (i < line->numElements) {
	/* if this isn't the first argument the previous argument
	gets this arguments post-indention */
	if (i > firstElement) {
	free(line->elements[i - 1].indent);
	line->elements[i - 1].indent = line->elements[i].indent;
2843	}	}
	free(line->elements[i].item);
	for (j = i + 1; j < line->numElements; j++)
	line->elements[j - 1] = line->elements[j];
	line->numElements--;
	}
2844	}	}
2845		}
2846
2847	if (line->numElements == 1) {	int isSuseSystem(void)
2848	/* don't need the line at all (note it has to be a	{
2849	LT_KERNELARGS for this to happen */	const char *path;
2850	removeLine(entry, line);	const static char default_path[] = "/etc/SuSE-release";
	}
	}
2851
2852	free(usedArgs);	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2853	free(newArgs);	path = default_path;
	free(oldArgs);
2854
2855	return 0;	if (!access(path, R_OK))
2856		return 1;
2857		return 0;
2858	}	}
2859
2860	int updateImage(struct grubConfig * cfg, const char * image,	int isSuseGrubConf(const char *path)
2861	const char * prefix, const char * addArgs,	{
2862	const char * removeArgs,	FILE *grubConf;
2863	const char * addMBArgs, const char * removeMBArgs) {	char *line = NULL;
2864	int rc = 0;	size_t len = 0, res = 0;
2865
2866	if (!image) return rc;	grubConf = fopen(path, "r");
2867		if (!grubConf) {
2868	/* update the main args first... */	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2869	if (addArgs || removeArgs)	path);
2870	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	return 0;
2871	if (rc) return rc;	}
2872
2873	/* and now any multiboot args */	while ((res = getline(&line, &len, grubConf)) != -1) {
2874	if (addMBArgs || removeMBArgs)	if (!strncmp(line, "setup", 5)) {
2875	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	fclose(grubConf);
2876	return rc;	free(line);
2877	}	return 1;
2878		}
2879	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	}
	int fd;
	unsigned char bootSect[512];
	int offset;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2880
2881	if (read(fd, bootSect, 512) != 512) {	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2882	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	path);
	device, strerror(errno));
	return 1;
	}
	close(fd);
2883
2884	/* first three bytes should match, a jmp short should be in there */	fclose(grubConf);
2885	if (memcmp(boot, bootSect, 3))	free(line);
2886	return 0;	return 0;
2887		}
2888
2889	if (boot[1] == 0xeb) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2890	offset = boot[2] + 2;	{
2891	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	FILE *grubConf;
2892	offset = (boot[3] << 8) + boot[2] + 2;	char *line = NULL;
2893	} else if (boot[0] == 0xeb) {	size_t res = 0, len = 0;
	offset = boot[1] + 2;
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
2894
2895	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (!path)
2896	return 0;	return 1;
2897		if (!lbaPtr)
2898		return 1;
2899
2900	return 2;	grubConf = fopen(path, "r");
2901	}	if (!grubConf)
2902		return 1;
2903
2904	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2905	int fd;	if (line[res - 1] == '\n')
2906	char buf[65536];	line[res - 1] = '\0';
2907	char * end;	else if (len > res)
2908	char * chptr;	line[res] = '\0';
2909	char * chptr2;	else {
2910	int rc;	line = realloc(line, res + 1);
2911		line[res] = '\0';
2912		}
2913
2914	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (!strncmp(line, "setup", 5)) {
2915	*raw* devices listed in there */	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 (!strncmp(mdDev, "/dev/", 5))	free(line);
2926	mdDev += 5;	fclose(grubConf);
2927		return 0;
2928		}
2929
2930	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2931	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	{
2932	strerror(errno));	FILE *grubConf;
2933	return 2;	char *line = NULL;
2934	}	size_t res = 0, len = 0;
2935		char *lastParamPtr = NULL;
2936		char *secLastParamPtr = NULL;
2937		char installDeviceNumber = '\0';
2938		char *bounds = NULL;
2939
2940	rc = read(fd, buf, sizeof(buf) - 1);	if (!path)
2941	if (rc < 0 || rc == (sizeof(buf) - 1)) {	return 1;
2942	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	if (!devicePtr)
2943	strerror(errno));	return 1;
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2944
2945	chptr = buf;	grubConf = fopen(path, "r");
2946	while (*chptr) {	if (!grubConf)
2947	end = strchr(chptr, '\n');	return 1;
	if (!end) break;
	*end = '\0';
2948
2949	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	while ((res = getline(&line, &len, grubConf)) != -1) {
2950	chptr[strlen(mdDev)] == ' ') {	if (strncmp(line, "setup", 5))
2951		continue;
2952
2953		if (line[res - 1] == '\n')
2954		line[res - 1] = '\0';
2955		else if (len > res)
2956		line[res] = '\0';
2957		else {
2958		line = realloc(line, res + 1);
2959		line[res] = '\0';
2960		}
2961
2962	/* found the device */	lastParamPtr = bounds = line + res;
	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++;
	}
2963
2964	/*  we're good to go */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2965	return 2;	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	chptr = end + 1;	*devicePtr = malloc(6);
3006	}	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3007		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3008		fclose(grubConf);
3009		free(line);
3010		return 0;
3011		}
3012
3013	fprintf(stderr,	free(line);
3014	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	fclose(grubConf);
3015	mdDev);	return 1;
	return 0;
3016	}	}
3017
3018	int checkForLilo(struct grubConfig * config) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3019	int fd;	{
3020	unsigned char boot[512];	FILE *deviceMap;
3021	struct singleLine * line;	char *line = NULL;
3022		size_t res = 0, len = 0;
3023	for (line = config->theLines; line; line = line->next)	char *devicePtr;
3024	if (line->type == LT_BOOT) break;	char *bounds = NULL;
3025		const char *path;
3026	if (!line) {	const static char default_path[] = "/boot/grub/device.map";
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3027
3028	if (line->numElements != 2) return 1;	if (!device)
3029		return 1;
3030		if (!bootPtr)
3031		return 1;
3032
3033	fd = open("/boot/boot.b", O_RDONLY);	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3034	if (fd < 0) {	path = default_path;
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3035
3036	if (read(fd, boot, 512) != 512) {	dbgPrintf("opening grub device.map file from: %s\n", path);
3037	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	deviceMap = fopen(path, "r");
3038	"/boot/boot.b", strerror(errno));	if (!deviceMap)
3039	return 1;	return 1;
	}
	close(fd);
3040
3041	if (!strncmp("/dev/md", line->elements[1].item, 7))	while ((res = getline(&line, &len, deviceMap)) != -1) {
3042	return checkLiloOnRaid(line->elements[1].item, boot);	if (!strncmp(line, "#", 1))
3043		continue;
3044
3045		if (line[res - 1] == '\n')
3046		line[res - 1] = '\0';
3047		else if (len > res)
3048		line[res] = '\0';
3049		else {
3050		line = realloc(line, res + 1);
3051		line[res] = '\0';
3052		}
3053
3054	return checkDeviceBootloader(line->elements[1].item, boot);	devicePtr = line;
3055	}	bounds = line + res;
3056
3057	int checkForGrub(struct grubConfig * config) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058	int fd;	devicePtr++;
3059	unsigned char bootSect[512];	dbgPrintf("device: %s\n", devicePtr);
3060	char * boot;
3061		if (!strncmp(devicePtr, device, strlen(device))) {
3062		devicePtr += strlen(device);
3063		while (isspace(*devicePtr)
3064		&& ((devicePtr + 1) <= bounds))
3065		devicePtr++;
3066
3067	if (parseSysconfigGrub(NULL, &boot))	*bootPtr = strdup(devicePtr);
3068	return 0;	break;
3069		}
3070		}
3071
3072	/* assume grub is not installed -- not an error condition */	free(line);
3073	if (!boot)	fclose(deviceMap);
3074	return 0;	return 0;
3075		}
3076
3077	fd = open("/boot/grub/stage1", O_RDONLY);	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3078	if (fd < 0)	{
3079	/* this doesn't exist if grub hasn't been installed */	char *grubDevice;
	return 0;
3080
3081	if (read(fd, bootSect, 512) != 512) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	dbgPrintf("error looking for grub installation device\n");
3083	"/boot/grub/stage1", strerror(errno));	else
3084	return 1;	dbgPrintf("grubby installation device: %s\n", grubDevice);
3085	}
3086	close(fd);	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3087		dbgPrintf("error looking for grub boot device\n");
3088		else
3089		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3090
3091	return checkDeviceBootloader(boot, bootSect);	free(grubDevice);
3092		return 0;
3093	}	}
3094
3095	static char * getRootSpecifier(char * str) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3096	char * idx, * rootspec = NULL;	{
3097		/*
3098		* 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	if (*str == '(') {	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3106	idx = rootspec = strdup(str);	path = default_path;
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
	}
3107
3108	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	if (!isSuseGrubConf(path))
3109	const char * prefix,	return 1;
	char * newKernelPath, char * newKernelTitle,
	char * newKernelArgs, char * newKernelInitrd,
	char * newMBKernel, char * newMBKernelArgs) {
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;
	int needs;
	char * indent = NULL;
	char * rootspec = NULL;
	char * chptr;
	int i;
	enum lineType_e type;
	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;
3110
3111	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (lbaPtr) {
3112	while (findEntryByPath(config, buf, NULL, NULL)) {	*lbaPtr = 0;
3113	sprintf(numBuf, "%d", i++);	if (suseGrubConfGetLba(path, lbaPtr))
3114	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	return 1;
3115	}	}
3116
3117	newKernelTitle = buf + 6;	if (bootPtr) {
3118	}	*bootPtr = NULL;
3119		suseGrubConfGetBoot(path, bootPtr);
3120		}
3121
3122	new = malloc(sizeof(*new));	return 0;
3123	new->skip = 0;	}
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = KERNEL_KERNEL | KERNEL_INITRD | KERNEL_TITLE;
	if (newMBKernel) {
	needs |= KERNEL_MB;
	new->multiboot = 1;
	}
3124
3125	if (template) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	{
3127	/* remember the indention level; we may need it for new lines */	FILE *in;
3128	if (tmplLine->numElements)	char buf[1024];
3129	indent = tmplLine->indent;	char *chptr;
3130		char *start;
3131	/* skip comments */	char *param;
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	/* we don't need an initrd here */
	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;
	if (tmplLine->type == LT_KERNEL &&
	!template->multiboot && (needs & KERNEL_MB)) {
	struct singleLine *l;
	needs &= ~ KERNEL_MB;
	l = addLine(new, config->cfi, LT_KERNEL,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	tmplLine = lastLine;
	if (!new->lines) {
	new->lines = l;
	} else {
	newLine->next = l;
	newLine = l;
	}
	continue;
	} else if (tmplLine->type == LT_KERNEL &&
	template->multiboot && !new->multiboot) {
	continue; /* don't need multiboot kernel here */
	}
	if (!new->lines) {
	newLine = malloc(sizeof(*newLine));
	new->lines = newLine;
	} else {
	newLine->next = malloc(sizeof(*newLine));
	newLine = newLine->next;
	}
	newLine->indent = strdup(tmplLine->indent);
	newLine->next = NULL;
	newLine->type = tmplLine->type;
	newLine->numElements = tmplLine->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].item = strdup(tmplLine->elements[i].item);
	newLine->elements[i].indent =
	strdup(tmplLine->elements[i].indent);
	}
	lastLine = tmplLine;
	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {
	char * repl;
	if (!template->multiboot) {
	needs &= ~KERNEL_KERNEL;
	repl = newKernelPath;
	} else {
	needs &= ~KERNEL_MB;
	repl = newMBKernel;
	}
	if (new->multiboot && !template->multiboot) {
	free(newLine->elements[0].item);
	newLine->elements[0].item = strdup("module");
	newLine->type = LT_MBMODULE;
	}
	free(newLine->elements[1].item);
	rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	newLine->elements[1].item = sdupprintf("%s%s",
	rootspec,
	repl +
	strlen(prefix));
	} else {
	newLine->elements[1].item = strdup(repl +
	strlen(prefix));
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {
	needs &= ~KERNEL_KERNEL;
	if (!new->multiboot && template->multiboot) {
	free(newLine->elements[0].item);
	newLine->elements[0].item = strdup("kernel");
	newLine->type = LT_KERNEL;
	}
	free(newLine->elements[1].item);
	rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	newLine->elements[1].item = sdupprintf("%s%s",
	rootspec,
	newKernelPath +
	strlen(prefix));
	} else {
	newLine->elements[1].item = strdup(newKernelPath +
	strlen(prefix));
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	needs &= ~KERNEL_INITRD;
	free(newLine->elements[1].item);
	if (new->multiboot && !template->multiboot) {
	free(newLine->elements[0].item);
	newLine->elements[0].item = strdup("module");
	newLine->type = LT_MBMODULE;
	}
	rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	newLine->elements[1].item = sdupprintf("%s%s",
	rootspec,
	newKernelInitrd +
	strlen(prefix));
	} else {
	newLine->elements[1].item = strdup(newKernelInitrd +
	strlen(prefix));
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {
	needs &= ~KERNEL_INITRD;
	if (!new->multiboot && template->multiboot) {
	free(newLine->elements[0].item);
	newLine->elements[0].item = strdup("initrd");
	newLine->type = LT_INITRD;
	}
	free(newLine->elements[1].item);
	rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	newLine->elements[1].item = sdupprintf("%s%s",
	rootspec,
	newKernelInitrd +
	strlen(prefix));
	} else {
	newLine->elements[1].item = strdup(newKernelInitrd +
	strlen(prefix));
	}
	} else if (tmplLine->type == LT_TITLE &&
	tmplLine->numElements >= 2) {
	needs &= ~KERNEL_TITLE;
	for (i = 1; i < newLine->numElements; i++) {
	free(newLine->elements[i].item);
	free(newLine->elements[i].indent);
	}
	newLine->elements[1].item = strdup(newKernelTitle);
	newLine->elements[1].indent = strdup("");
	newLine->numElements = 2;
	} else if (tmplLine->type == LT_TITLE &&
	config->cfi->titleBracketed &&
	tmplLine->numElements == 1) {
	needs &= ~KERNEL_TITLE;
	free(newLine->elements[0].item);
	free(newLine->elements[0].indent);
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);
	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);
	newLine->elements[0].indent = strdup("");
	newLine->numElements = 1;
	}
	}
	} else {
	for (i = 0; config->cfi->keywords[i].key; i++) {
	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))
	break;
	}
3132
3133	switch (config->cfi->keywords[i].type) {	in = fopen("/etc/sysconfig/grub", "r");
3134	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	if (!in)
3135	chptr = newKernelPath + strlen(prefix);	return 1;
3136	type = LT_KERNEL; break;
3137	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	if (lbaPtr)
3138	type = LT_TITLE; break;	*lbaPtr = 0;
3139	default:	if (bootPtr)
3140	/* zipl strikes again */	*bootPtr = NULL;
3141	if (config->cfi->titleBracketed) {
3142	needs &= ~KERNEL_TITLE;	while (fgets(buf, sizeof(buf), in)) {
3143	chptr = newKernelTitle;	start = buf;
3144	type = LT_TITLE;	while (isspace(*start))
3145	break;	start++;
3146	} else {	if (*start == '#')
3147	abort();	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		chptr = param;
3168		while (*chptr && !isspace(*chptr))
3169		chptr++;
3170		*chptr = '\0';
3171
3172		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3173		*lbaPtr = 1;
3174		else if (!strcmp(start, "boot") && bootPtr)
3175		*bootPtr = strdup(param);
3176	}	}
3177
3178	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	fclose(in);
	new->lines = newLine;
	}
	if (new->multiboot) {
	if (needs & KERNEL_MB)
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	if (needs & KERNEL_KERNEL)
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	/* don't need to check for title as it's guaranteed to have been
	* done as we only do multiboot with grub which uses title as
	* a separator */
	if (needs & KERNEL_INITRD && newKernelInitrd)
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	newKernelInitrd + strlen(prefix));
	} else {
	if (needs & KERNEL_KERNEL)
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	if (needs & KERNEL_TITLE)
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	if (needs & KERNEL_INITRD && newKernelInitrd)
	newLine = addLine(new, config->cfi, LT_INITRD,
	config->secondaryIndent,
	newKernelInitrd + strlen(prefix));
	}
3179
3180	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	return 0;
3181	newMBKernelArgs, NULL)) return 1;	}
3182
3183	return 0;	void dumpSysconfigGrub(void)
3184		{
3185		char *boot = NULL;
3186		int lba;
3187
3188		if (isSuseSystem()) {
3189		if (parseSuseGrubConf(&lba, &boot)) {
3190		free(boot);
3191		return;
3192		}
3193		} else {
3194		if (parseSysconfigGrub(&lba, &boot)) {
3195		free(boot);
3196		return;
3197		}
3198		}
3199
3200		if (lba)
3201		printf("lba\n");
3202		if (boot) {
3203		printf("boot=%s\n", boot);
3204		free(boot);
3205		}
3206	}	}
3207
3208	int main(int argc, const char ** argv) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3209	poptContext optCon;	{
3210	char * grubConfig = NULL;	int i = 0;
3211	char * outputFile = NULL;	struct singleEntry *entry;
3212	int arg = 0;	struct singleLine *line;
3213	int flags = 0;
3214	int badImageOkay = 0;	entry = findEntryByPath(config, kernel, prefix, &i);
3215	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	if (!entry) {
3216	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	fprintf(stderr, _("grubby: kernel not found\n"));
3217	int bootloaderProbe = 0;	return 1;
	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;
	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") },
	{ "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") },
	{ "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 }
	};
	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;
3218	}	}
	}
3219
3220	if (arg < -1) {	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3221	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	be a better way */
3222	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	if (config->cfi == &grubConfigType) {
3223	poptStrerror(arg));	dumpSysconfigGrub();
3224	return 1;	} else {
3225	}	line = getLineByType(LT_BOOT, config->theLines);
3226		if (line && line->numElements >= 1) {
3227		printf("boot=%s\n", line->elements[1].item);
3228		}
3229
3230	if ((chptr = poptGetArg(optCon))) {	line = getLineByType(LT_LBA, config->theLines);
3231	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	if (line)
3232	return 1;	printf("lba\n");
3233	}	}
3234
3235	if ((configureLilo + configureGrub + configureELilo +	displayEntry(config, entry, prefix, i);
	configureYaboot + configureSilo + configureZipl) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	}
3236
3237	if (!cfi) {	i++;
3238	#ifdef __ia64__	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239	cfi = &eliloConfigType;	displayEntry(config, entry, prefix, i);
3240	#elif __powerpc__	i++;
3241	cfi = &yabootConfigType;	}
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
3242
3243	if (!grubConfig)	return 0;
3244	grubConfig = cfi->defaultConfig;	}
3245
3246	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	struct singleLine *addLineTmpl(struct singleEntry *entry,
3247	newKernelPath || removeKernelPath || makeDefault ||	struct singleLine *tmplLine,
3248	defaultKernel)) {	struct singleLine *prevLine,
3249	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	const char *val, struct configFileInfo *cfi)
3250	"specified option"));	{
3251	return 1;	struct singleLine *newLine = lineDup(tmplLine);
3252	}
3253		if (isEfi && cfi == &grub2ConfigType) {
3254		enum lineType_e old = newLine->type;
3255		newLine->type = preferredLineType(newLine->type, cfi);
3256		if (old != newLine->type)
3257		newLine->elements[0].item =
3258		getKeyByType(newLine->type, cfi);
3259		}
3260
3261		if (val) {
3262		/* override the inherited value with our own.
3263		* 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 ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285	removeKernelPath)) {	newLine->elements[0].item : "");
	fprintf(stderr, _("grubby: --default-kernel and --info may not "
	"be used when adding or removing kernels\n"));
	return 1;
	}
3286
3287	if (newKernelPath && !newKernelTitle) {	if (!entry->lines) {
3288	fprintf(stderr, _("grubby: kernel title must be specified\n"));	/* first one on the list */
3289	return 1;	entry->lines = newLine;
3290	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (prevLine) {
3291	newKernelInitrd || copyDefault     ||	/* add after prevLine */
3292	makeDefault)) {	newLine->next = prevLine->next;
3293	fprintf(stderr, _("grubby: kernel path expected\n"));	prevLine->next = newLine;
3294	return 1;	}
	}
3295
3296	if (newKernelPath && updateKernelPath) {	return newLine;
3297	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	}
3298	"not be used together"));
3299	return 1;	/* val may be NULL */
3300	}	struct singleLine *addLine(struct singleEntry *entry,
3301		struct configFileInfo *cfi,
3302		enum lineType_e type, char *defaultIndent,
3303		const char *val)
3304		{
3305		struct singleLine *line, *prev;
3306		struct keywordTypes *kw;
3307		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
	if (makeDefault && defaultKernel) {
	fprintf(stderr, _("grubby: --make-default and --default-kernel "
	"may not be used together\n"));
	return 1;
	} else if (defaultKernel && removeKernelPath &&
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
4230	return 1;	return 1;
4231	} else if (defaultKernel && newKernelPath &&	}
4232	!strcmp(defaultKernel, newKernelPath)) {
4233	makeDefault = 1;	int checkForGrub(struct grubConfig *config)
4234	defaultKernel = NULL;	{
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
	if (!strcmp(grubConfig, "-") && !outputFile) {
	fprintf(stderr, _("grubby: output file must be specified if stdin "
	"is used\n"));
4320	return 1;	return 1;
4321	}	}
4322
4323		int checkForElilo(struct grubConfig *config)
4324		{
4325		if (!access("/etc/elilo.conf", R_OK))
4326		return 2;
4327
	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel
	&& !kernelInfo && !bootloaderProbe && !updateKernelPath
	&& !removeMBKernel) {
	fprintf(stderr, _("grubby: no action specified\n"));
4328	return 1;	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	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	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 (cfi->needsBootPrefix) {	if (j != tmplLine->numElements)
4382	if (!bootPrefix) {	continue;
4383	bootPrefix = findBootPrefix();	}
4384	if (!bootPrefix) return 1;
4385	} else {	*end++ = separatorChar;
4386	/* this shouldn't end with a / */	end = stpcpy(end, extraInitrd);
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
4387	}	}
	} else {
	bootPrefix = "";
	}
4388
4389	if (bootloaderProbe) {	return initrdVal;
4390	int lrc = 0, grc = 0;	}
	struct grubConfig * lconfig, * gconfig;
	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);
	}
4391
4392	if (lrc == 1 || grc == 1) return 1;	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 (lrc == 2) printf("lilo\n");	if (!newKernelPath)
4408	if (grc == 2) printf("grub\n");	return 0;
4409
4410	return 0;	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	config = readConfig(grubConfig, cfi);	newKernelTitle = buf + 6;
4431	if (!config) return 1;	}
4432
4433	if (displayDefault) {	new = malloc(sizeof(*new));
4434	struct singleLine * line;	new->skip = 0;
4435	struct singleEntry * entry;	new->multiboot = 0;
4436	char * rootspec;	new->lines = NULL;
4437		entry = config->entries;
4438	if (config->defaultImage == -1) return 0;	for (unsigned int i = 0; i < newIndex; i++) {
4439	entry = findEntryByIndex(config, config->defaultImage);	if (!entry)
4440	if (!entry) return 0;	break;
4441	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;	prev = entry;
4442		entry = entry->next;
4443	line = entry->lines;	}
4444	while (line && line->type != LT_KERNEL) line = line->next;	new->next = entry;
4445	if (!line) return 0;
4446		if (prev)
4447	rootspec = getRootSpecifier(line->elements[1].item);	prev->next = new;
4448	printf("%s%s\n", bootPrefix, line->elements[1].item +	else
4449	((rootspec != NULL) ? strlen(rootspec) : 0));	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;	return 0;
4919	} else if (kernelInfo)	}
	return displayInfo(config, kernelInfo, bootPrefix);
4920
4921	if (copyDefault) {	int main(int argc, const char **argv)
4922	template = findTemplate(config, bootPrefix, NULL, 0, flags);	{
4923	if (!template) return 1;	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	markRemovedImage(config, removeKernelPath, bootPrefix);	if (arg < -1) {
5111	markRemovedImage(config, removeMBKernel, bootPrefix);	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5112	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5113	bootPrefix, flags);	poptStrerror(arg));
5114	setFallbackImage(config, newKernelPath != NULL);	return 1;
5115	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	}
5116	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;
5117	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if ((chptr = poptGetArg(optCon))) {
5118	newKernelTitle, newKernelArgs, newKernelInitrd,	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5119	newMBKernel, newMBKernelArgs)) return 1;	return 1;
5120		}
5121
5122	if (numEntries(config) == 0) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5123	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	configureYaboot + configureSilo + configureZipl +
5124	"Not writing out new config.\n"));	configureExtLinux) > 1) {
5125	return 1;	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.532   changed lines   Added in v.3136