Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	trunk/mkinitrd-magellan/grubby/grubby.c revision 532 by niro, Sat Sep 1 22:45:15 2007 UTC	trunk/grubby/grubby.c revision 3139 by niro, Tue Jul 7 11:12:00 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		const char *mounts = "/proc/mounts";
72
73	/* comments get lumped in with indention */	/* comments get lumped in with indention */
74	struct lineElement {	struct lineElement {
75	char * item;	char *item;
76	char * indent;	char *indent;
77	};	};
78
79	enum lineType_e { LT_WHITESPACE, LT_TITLE, LT_KERNEL, LT_INITRD, LT_DEFAULT,	enum lineType_e {
80	LT_UNKNOWN, LT_ROOT, LT_FALLBACK, LT_KERNELARGS, LT_BOOT,	LT_UNIDENTIFIED = 0,
81	LT_BOOTROOT, LT_LBA, LT_MBMODULE, LT_OTHER, LT_GENERIC };	LT_WHITESPACE = 1 << 0,
82		LT_TITLE = 1 << 1,
83		LT_KERNEL = 1 << 2,
84		LT_INITRD = 1 << 3,
85		LT_HYPER = 1 << 4,
86		LT_DEFAULT = 1 << 5,
87		LT_MBMODULE = 1 << 6,
88		LT_ROOT = 1 << 7,
89		LT_FALLBACK = 1 << 8,
90		LT_KERNELARGS = 1 << 9,
91		LT_BOOT = 1 << 10,
92		LT_BOOTROOT = 1 << 11,
93		LT_LBA = 1 << 12,
94		LT_OTHER = 1 << 13,
95		LT_GENERIC = 1 << 14,
96		LT_ECHO = 1 << 16,
97		LT_MENUENTRY = 1 << 17,
98		LT_ENTRY_END = 1 << 18,
99		LT_SET_VARIABLE = 1 << 19,
100		LT_KERNEL_EFI = 1 << 20,
101		LT_INITRD_EFI = 1 << 21,
102		LT_KERNEL_16 = 1 << 22,
103		LT_INITRD_16 = 1 << 23,
104		LT_DEVTREE = 1 << 24,
105		LT_UNKNOWN = 1 << 25,
106		};
107
108	struct singleLine {	struct singleLine {
109	char * indent;	char *indent;
110	int numElements;	int numElements;
111	struct lineElement * elements;	struct lineElement *elements;
112	struct singleLine * next;	struct singleLine *next;
113	enum lineType_e type;	enum lineType_e type;
114	};	};
115
116	struct singleEntry {	struct singleEntry {
117	struct singleLine * lines;	struct singleLine *lines;
118	int skip;	int skip;
119	int multiboot;	int multiboot;
120	struct singleEntry * next;	struct singleEntry *next;
121	};	};
122
123	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
124
125	#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 */
126
127	#define KERNEL_KERNEL    (1 << 0)	/* These defines are (only) used in addNewKernel() */
128	#define KERNEL_INITRD    (1 << 2)	#define NEED_KERNEL  (1 << 0)
129	#define KERNEL_TITLE    (1 << 3)	#define NEED_INITRD  (1 << 1)
130	#define KERNEL_ARGS    (1 << 4)	#define NEED_TITLE   (1 << 2)
131	#define KERNEL_MB           (1 << 5)	#define NEED_ARGS    (1 << 3)
132		#define NEED_MB      (1 << 4)
133		#define NEED_END     (1 << 5)
134		#define NEED_DEVTREE (1 << 6)
135
136	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
137		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
138		from this initial value */
139		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
140		entry was set or currently exists */
141	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
142		#define DEFAULT_SAVED_GRUB2 -3
143
144	struct keywordTypes {	struct keywordTypes {
145	char * key;	char *key;
146	enum lineType_e type;	enum lineType_e type;
147	char nextChar;	char nextChar;
148	} ;	char separatorChar;
149		};
150
151		struct configFileInfo;
152
153		typedef const char *(*findConfigFunc) (struct configFileInfo *);
154		typedef const int (*writeLineFunc) (struct configFileInfo *,
155		struct singleLine * line);
156		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
157		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
158
159	struct configFileInfo {	struct configFileInfo {
160	char * defaultConfig;	char *defaultConfig;
161	struct keywordTypes * keywords;	findConfigFunc findConfig;
162	int defaultIsIndex;	writeLineFunc writeLine;
163	int defaultSupportSaved;	getEnvFunc getEnv;
164	enum lineType_e entrySeparator;	setEnvFunc setEnv;
165	int needsBootPrefix;	struct keywordTypes *keywords;
166	int argsInQuotes;	int caseInsensitive;
167	int maxTitleLength;	int defaultIsIndex;
168	int titleBracketed;	int defaultIsVariable;
169		int defaultSupportSaved;
170		int defaultIsSaved;
171		int defaultIsUnquoted;
172		enum lineType_e entryStart;
173		enum lineType_e entryEnd;
174		int needsBootPrefix;
175		int argsInQuotes;
176		int maxTitleLength;
177		int titleBracketed;
178		int titlePosition;
179		int mbHyperFirst;
180		int mbInitRdIsModule;
181		int mbConcatArgs;
182		int mbAllowExtraInitRds;
183		char *envFile;
184	};	};
185
186	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
187	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
188	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
189	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
190	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
191	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
192	{ "initrd",    LT_INITRD,    ' ' },	{"initrd", LT_INITRD, ' ', ' '},
193	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
194	{ NULL,    0, 0 },	{"kernel", LT_HYPER, ' '},
195		{NULL, 0, 0},
196	};	};
197
198		const char *grubFindConfig(struct configFileInfo *cfi)
199		{
200		static const char *configFiles[] = {
201		"/boot/grub/grub.conf",
202		"/boot/grub/menu.lst",
203		"/etc/grub.conf",
204		NULL
205		};
206		static int i = -1;
207
208		if (i == -1) {
209		for (i = 0; configFiles[i] != NULL; i++) {
210		dbgPrintf("Checking \"%s\": ", configFiles[i]);
211		if (!access(configFiles[i], R_OK)) {
212		dbgPrintf("found\n");
213		return configFiles[i];
214		}
215		dbgPrintf("not found\n");
216		}
217		}
218		return configFiles[i];
219		}
220
221	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
222	"/boot/grub/grub.conf",    /* defaultConfig */	.findConfig = grubFindConfig,
223	grubKeywords,    /* keywords */	.keywords = grubKeywords,
224	1,    /* defaultIsIndex */	.defaultIsIndex = 1,
225	1,    /* defaultSupportSaved */	.defaultSupportSaved = 1,
226	LT_TITLE,    /* entrySeparator */	.entryStart = LT_TITLE,
227	1,    /* needsBootPrefix */	.needsBootPrefix = 1,
228	0,    /* argsInQuotes */	.mbHyperFirst = 1,
229	0,    /* maxTitleLength */	.mbInitRdIsModule = 1,
230	0,                                      /* titleBracketed */	.mbAllowExtraInitRds = 1,
231		.titlePosition = 1,
232		};
233
234		struct keywordTypes grub2Keywords[] = {
235		{"menuentry", LT_MENUENTRY, ' '},
236		{"}", LT_ENTRY_END, ' '},
237		{"echo", LT_ECHO, ' '},
238		{"set", LT_SET_VARIABLE, ' ', '='},
239		{"root", LT_BOOTROOT, ' '},
240		{"default", LT_DEFAULT, ' '},
241		{"fallback", LT_FALLBACK, ' '},
242		{"linux", LT_KERNEL, ' '},
243		{"linuxefi", LT_KERNEL_EFI, ' '},
244		{"linux16", LT_KERNEL_16, ' '},
245		{"initrd", LT_INITRD, ' ', ' '},
246		{"initrdefi", LT_INITRD_EFI, ' ', ' '},
247		{"initrd16", LT_INITRD_16, ' ', ' '},
248		{"module", LT_MBMODULE, ' '},
249		{"kernel", LT_HYPER, ' '},
250		{"devicetree", LT_DEVTREE, ' '},
251		{NULL, 0, 0},
252		};
253
254		const char *grub2FindConfig(struct configFileInfo *cfi)
255		{
256		static const char *configFiles[] = {
257		"/boot/grub/grub-efi.cfg",
258		"/boot/grub/grub.cfg",
259		"/etc/grub2-efi.cfg",
260		"/etc/grub2.cfg",
261		"/boot/grub2/grub.cfg",
262		"/boot/grub2-efi/grub.cfg",
263		NULL
264		};
265		static int i = -1;
266		static const char *grub_cfg = "/boot/grub/grub.cfg";
267		int rc = -1;
268
269		if (i == -1) {
270		for (i = 0; configFiles[i] != NULL; i++) {
271		dbgPrintf("Checking \"%s\": ", configFiles[i]);
272		if ((rc = access(configFiles[i], R_OK))) {
273		if (errno == EACCES) {
274		printf
275		("Unable to access bootloader configuration file "
276		"\"%s\": %m\n", configFiles[i]);
277		exit(1);
278		}
279		continue;
280		} else {
281		dbgPrintf("found\n");
282		return configFiles[i];
283		}
284		}
285		}
286
287		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
288		* that isn't in grub1, and if it exists, return the config file path
289		* that they use. */
290		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
291		dbgPrintf("found\n");
292		return grub_cfg;
293		}
294
295		dbgPrintf("not found\n");
296		return configFiles[i];
297		}
298
299		/* kind of hacky.  It'll give the first 1024 bytes, ish. */
300		static char *grub2GetEnv(struct configFileInfo *info, char *name)
301		{
302		static char buf[1025];
303		char *s = NULL;
304		char *ret = NULL;
305		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
306		int rc =
307		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
308
309		if (rc < 0)
310		return NULL;
311
312		FILE *f = popen(s, "r");
313		if (!f)
314		goto out;
315
316		memset(buf, '\0', sizeof(buf));
317		ret = fgets(buf, 1024, f);
318		pclose(f);
319
320		if (ret) {
321		ret += strlen(name) + 1;
322		ret[strlen(ret) - 1] = '\0';
323		}
324		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
325		out:
326		free(s);
327		return ret;
328		}
329
330		static int sPopCount(const char *s, const char *c)
331		{
332		int ret = 0;
333		if (!s)
334		return -1;
335		for (int i = 0; s[i] != '\0'; i++)
336		for (int j = 0; c[j] != '\0'; j++)
337		if (s[i] == c[j])
338		ret++;
339		return ret;
340		}
341
342		static char *shellEscape(const char *s)
343		{
344		int l = strlen(s) + sPopCount(s, "'") * 2;
345
346		char *ret = calloc(l + 1, sizeof(*ret));
347		if (!ret)
348		return NULL;
349		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
350		if (s[i] == '\'')
351		ret[j++] = '\\';
352		ret[j] = s[i];
353		}
354		return ret;
355		}
356
357		static void unquote(char *s)
358		{
359		int l = strlen(s);
360
361		if ((s[l - 1] == '\'' && s[0] == '\'')
362		|| (s[l - 1] == '"' && s[0] == '"')) {
363		memmove(s, s + 1, l - 2);
364		s[l - 2] = '\0';
365		}
366		}
367
368		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
369		{
370		char *s = NULL;
371		int rc = 0;
372		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
373
374		unquote(value);
375		value = shellEscape(value);
376		if (!value)
377		return -1;
378
379		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
380		free(value);
381		if (rc < 0)
382		return -1;
383
384		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
385		rc = system(s);
386		free(s);
387		return rc;
388		}
389
390		/* this is a gigantic hack to avoid clobbering grub2 variables... */
391		static int is_special_grub2_variable(const char *name)
392		{
393		if (!strcmp(name, "\"${next_entry}\""))
394		return 1;
395		if (!strcmp(name, "\"${prev_saved_entry}\""))
396		return 1;
397		return 0;
398		}
399
400		int sizeOfSingleLine(struct singleLine *line)
401		{
402		int count = 0;
403
404		for (int i = 0; i < line->numElements; i++) {
405		int indentSize = 0;
406
407		count = count + strlen(line->elements[i].item);
408
409		indentSize = strlen(line->elements[i].indent);
410		if (indentSize > 0)
411		count = count + indentSize;
412		else
413		/* be extra safe and add room for whitespaces */
414		count = count + 1;
415		}
416
417		/* room for trailing terminator */
418		count = count + 1;
419
420		return count;
421		}
422
423		static int isquote(char q)
424		{
425		if (q == '\'' || q == '\"')
426		return 1;
427		return 0;
428		}
429
430		static int iskernel(enum lineType_e type)
431		{
432		return (type == LT_KERNEL || type == LT_KERNEL_EFI
433		|| type == LT_KERNEL_16);
434		}
435
436		static int isinitrd(enum lineType_e type)
437		{
438		return (type == LT_INITRD || type == LT_INITRD_EFI
439		|| type == LT_INITRD_16);
440		}
441
442		char *grub2ExtractTitle(struct singleLine *line)
443		{
444		char *current;
445		char *current_indent;
446		int current_len;
447		int current_indent_len;
448		int i;
449
450		/* bail out if line does not start with menuentry */
451		if (strcmp(line->elements[0].item, "menuentry"))
452		return NULL;
453
454		i = 1;
455		current = line->elements[i].item;
456		current_len = strlen(current);
457
458		/* if second word is quoted, strip the quotes and return single word */
459		if (isquote(*current) && isquote(current[current_len - 1])) {
460		char *tmp;
461
462		tmp = strdup(current + 1);
463		if (!tmp)
464		return NULL;
465		tmp[strlen(tmp) - 1] = '\0';
466		return tmp;
467		}
468
469		/* if no quotes, return second word verbatim */
470		if (!isquote(*current))
471		return current;
472
473		/* second element start with a quote, so we have to find the element
474		* whose last character is also quote (assuming it's the closing one) */
475		int resultMaxSize;
476		char *result;
477		/* need to ensure that ' does not match " as we search */
478		char quote_char = *current;
479
480		resultMaxSize = sizeOfSingleLine(line);
481		result = malloc(resultMaxSize);
482		snprintf(result, resultMaxSize, "%s", ++current);
483
484		i++;
485		for (; i < line->numElements; ++i) {
486		current = line->elements[i].item;
487		current_len = strlen(current);
488		current_indent = line->elements[i].indent;
489		current_indent_len = strlen(current_indent);
490
491		strncat(result, current_indent, current_indent_len);
492		if (current[current_len - 1] != quote_char) {
493		strncat(result, current, current_len);
494		} else {
495		strncat(result, current, current_len - 1);
496		break;
497		}
498		}
499		return result;
500		}
501
502		struct configFileInfo grub2ConfigType = {
503		.findConfig = grub2FindConfig,
504		.getEnv = grub2GetEnv,
505		.setEnv = grub2SetEnv,
506		.keywords = grub2Keywords,
507		.defaultIsIndex = 1,
508		.defaultSupportSaved = 1,
509		.defaultIsVariable = 1,
510		.entryStart = LT_MENUENTRY,
511		.entryEnd = LT_ENTRY_END,
512		.titlePosition = 1,
513		.needsBootPrefix = 1,
514		.mbHyperFirst = 1,
515		.mbInitRdIsModule = 1,
516		.mbAllowExtraInitRds = 1,
517	};	};
518
519	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
520	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
521	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
522	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
523	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
524	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
525	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
526	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
527	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
528	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
529	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
530	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
531	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
532	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
533	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
534	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
535	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
536	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
537	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
538	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
539	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
540	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
541	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
542	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
543	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
544	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
545	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
546	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
547	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
548	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
549	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
550	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '=', ';'},
551	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
552	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
553	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
554	{ NULL,    0, 0 },	{NULL, 0, 0},
555	};	};
556
557	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
558	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
559	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
560	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
561	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
562	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
563	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
564	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
565	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
566	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
567	{ NULL,    0, 0 },	{NULL, 0, 0},
568		};
569
570		struct keywordTypes eliloKeywords[] = {
571		{"label", LT_TITLE, '='},
572		{"root", LT_ROOT, '='},
573		{"default", LT_DEFAULT, '='},
574		{"image", LT_KERNEL, '='},
575		{"initrd", LT_INITRD, '='},
576		{"append", LT_KERNELARGS, '='},
577		{"vmm", LT_HYPER, '='},
578		{NULL, 0, 0},
579	};	};
580
581	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
582	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
583	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
584	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
585	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
586	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
587	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
588	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
589	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
590	{ NULL,    0, 0 },	{NULL, 0, 0},
591	};	};
592
593	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
594	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
595	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
596	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
597	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
598	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
599	{ NULL,         0, 0 },	{NULL, 0, 0},
600	};	};
601
602		struct keywordTypes extlinuxKeywords[] = {
603		{"label", LT_TITLE, ' '},
604		{"root", LT_ROOT, ' '},
605		{"default", LT_DEFAULT, ' '},
606		{"kernel", LT_KERNEL, ' '},
607		{"initrd", LT_INITRD, ' ', ','},
608		{"append", LT_KERNELARGS, ' '},
609		{"prompt", LT_UNKNOWN, ' '},
610		{"fdt", LT_DEVTREE, ' '},
611		{"fdtdir", LT_DEVTREE, ' '},
612		{NULL, 0, 0},
613		};
614
615		int useextlinuxmenu;
616	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
617	"/boot/efi/EFI/redhat/elilo.conf",    /* defaultConfig */	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
618	liloKeywords,    /* keywords */	.keywords = eliloKeywords,
619	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
620	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
621	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
622	1,                    /* needsBootPrefix */	.mbConcatArgs = 1,
623	1,    /* argsInQuotes */	.titlePosition = 1,
	0,    /* maxTitleLength */
	0,                                      /* titleBracketed */
624	};	};
625
626	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
627	"/etc/lilo.conf",    /* defaultConfig */	.defaultConfig = "/etc/lilo.conf",
628	liloKeywords,    /* keywords */	.keywords = liloKeywords,
629	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
630	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
631	LT_KERNEL,    /* entrySeparator */	.maxTitleLength = 15,
632	0,    /* needsBootPrefix */	.titlePosition = 1,
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
633	};	};
634
635	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
636	"/etc/yaboot.conf",    /* defaultConfig */	.defaultConfig = "/etc/yaboot.conf",
637	yabootKeywords,    /* keywords */	.keywords = yabootKeywords,
638	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
639	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
640	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
641	1,    /* needsBootPrefix */	.maxTitleLength = 15,
642	1,    /* argsInQuotes */	.mbAllowExtraInitRds = 1,
643	15,    /* maxTitleLength */	.titlePosition = 1,
	0,                                      /* titleBracketed */
644	};	};
645
646	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
647	"/etc/silo.conf",    /* defaultConfig */	.defaultConfig = "/etc/silo.conf",
648	siloKeywords,    /* keywords */	.keywords = siloKeywords,
649	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
650	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
651	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
652	1,    /* needsBootPrefix */	.maxTitleLength = 15,
653	1,    /* argsInQuotes */	.titlePosition = 1,
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
654	};	};
655
656	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
657	"/etc/zipl.conf",    /* defaultConfig */	.defaultConfig = "/etc/zipl.conf",
658	ziplKeywords,    /* keywords */	.keywords = ziplKeywords,
659	0,    /* defaultIsIndex */	.entryStart = LT_TITLE,
660	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
661	LT_TITLE,    /* entrySeparator */	.titleBracketed = 1,
	0,    /* needsBootPrefix */
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	1,                                      /* titleBracketed */
662	};	};
663
664	struct grubConfig {	struct configFileInfo extlinuxConfigType = {
665	struct singleLine * theLines;	.defaultConfig = "/boot/extlinux/extlinux.conf",
666	struct singleEntry * entries;	.keywords = extlinuxKeywords,
667	char * primaryIndent;	.caseInsensitive = 1,
668	char * secondaryIndent;	.entryStart = LT_TITLE,
669	int defaultImage;    /* -1 if none specified -- this value is	.needsBootPrefix = 1,
670	* written out, overriding original */	.maxTitleLength = 255,
671	int fallbackImage;    /* just like defaultImage */	.mbAllowExtraInitRds = 1,
672	int flags;	.defaultIsUnquoted = 1,
673	struct configFileInfo * cfi;	.titlePosition = 1,
674	};	};
675
676		struct grubConfig {
677		struct singleLine *theLines;
678		struct singleEntry *entries;
679		char *primaryIndent;
680		char *secondaryIndent;
681		int defaultImage; /* -1 if none specified -- this value is
682		* written out, overriding original */
683		int fallbackImage; /* just like defaultImage */
684		int flags;
685		struct configFileInfo *cfi;
686		int isModified; /* assumes only one entry added
687		per invocation of grubby */
688		};
689
690	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';
691
692	return to;	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
693	}	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
694		const char *path, const char *prefix,
695		int *index);
696		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
697		int *index);
698		static int readFile(int fd, char **bufPtr);
699		static void lineInit(struct singleLine *line);
700		struct singleLine *lineDup(struct singleLine *line);
701		static void lineFree(struct singleLine *line);
702		static int lineWrite(FILE * out, struct singleLine *line,
703		struct configFileInfo *cfi);
704		static int getNextLine(char **bufPtr, struct singleLine *line,
705		struct configFileInfo *cfi);
706		static size_t getRootSpecifier(const char *str);
707		static void requote(struct singleLine *line, struct configFileInfo *cfi);
708		static void insertElement(struct singleLine *line,
709		const char *item, int insertHere,
710		struct configFileInfo *cfi);
711		static void removeElement(struct singleLine *line, int removeHere);
712		static struct keywordTypes *getKeywordByType(enum lineType_e type,
713		struct configFileInfo *cfi);
714		static enum lineType_e getTypeByKeyword(char *keyword,
715		struct configFileInfo *cfi);
716		static struct singleLine *getLineByType(enum lineType_e type,
717		struct singleLine *line);
718		static int checkForExtLinux(struct grubConfig *config);
719		struct singleLine *addLineTmpl(struct singleEntry *entry,
720		struct singleLine *tmplLine,
721		struct singleLine *prevLine,
722		const char *val, struct configFileInfo *cfi);
723		struct singleLine *addLine(struct singleEntry *entry,
724		struct configFileInfo *cfi,
725		enum lineType_e type, char *defaultIndent,
726		const char *val);
727
728	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
729	#ifdef __GNUC__	#ifdef __GNUC__
730	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
731	#else	#else
732	;	;
733	#endif	#endif
734
735	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
736	char *buf = NULL;	{
737	char c;	char *buf = NULL;
738	va_list args;	char c;
739	size_t size = 0;	va_list args;
740	va_start(args, format);	size_t size = 0;
741		va_start(args, format);
742	/* XXX requires C99 vsnprintf behavior */
743	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
744	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
745	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
746	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
747	}	abort();
748		}
749	va_end(args);
750	va_start(args, format);	va_end(args);
751		va_start(args, format);
752
753		buf = malloc(size);
754		if (buf == NULL)
755		return NULL;
756		vsnprintf(buf, size, format, args);
757		va_end(args);
758
759	buf = malloc(size);	return buf;
	if (buf == NULL)
	return NULL;
	vsnprintf(buf, size, format, args);
	va_end (args);
	return buf;
760	}	}
761
762	static int isBracketedTitle(struct singleLine * line) {	static inline int
763	if ((*line->elements[0].item == '[') && (line->numElements == 1)) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
764	int len = strlen(line->elements[0].item);	{
765	if (*(line->elements[0].item + len - 1) == ']') {	int kwl = strlen(kw->key);
766	/* FIXME: this is a hack... */	int ll = strlen(label);
767	if (strcmp(line->elements[0].item, "[defaultboot]")) {	int rc;
768	return 1;	int (*snc)(const char *s1, const char *s2, size_t n) =
769	}	case_insensitive ? strncasecmp : strncmp;
770	}	int (*sc)(const char *s1, const char *s2) =
771		case_insensitive ? strcasecmp : strcmp;
772
773		rc = snc(kw->key, label, kwl);
774		if (rc)
775		return rc;
776
777		for (int i = kwl; i < ll; i++) {
778		if (isspace(label[i]))
779		return 0;
780		if (kw->separatorChar && label[i] == kw->separatorChar)
781		return 0;
782		else if (kw->nextChar && label[i] == kw->nextChar)
783		return 0;
784		return sc(kw->key+kwl, label+kwl);
785	}	}
786	return 0;	return 0;
787	}	}
788
789	/* figure out if this is a entry separator */	static enum lineType_e preferredLineType(enum lineType_e type,
790	static int isEntrySeparator(struct singleLine * line,	struct configFileInfo *cfi)
791	struct configFileInfo * cfi) {	{
792	if (line->type == LT_WHITESPACE)	if (isEfi && cfi == &grub2ConfigType) {
793	return 0;	switch (type) {
794	if (line->type == cfi->entrySeparator)	case LT_KERNEL:
795	return 1;	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
796	if (line->type == LT_OTHER)	case LT_INITRD:
797	return 1;	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
798	if (cfi->titleBracketed && isBracketedTitle(line)) {	default:
799	return 1;	return type;
800	}	}
801	return 0;	#if defined(__i386__) || defined(__x86_64__)
802		} else if (cfi == &grub2ConfigType) {
803		switch (type) {
804		case LT_KERNEL:
805		return LT_KERNEL_16;
806		case LT_INITRD:
807		return LT_INITRD_16;
808		default:
809		return type;
810		}
811		#endif
812		}
813		return type;
814	}	}
815
816	/* extract the title from within brackets (for zipl) */	static struct keywordTypes *getKeywordByType(enum lineType_e type,
817	static char * extractTitle(struct singleLine * line) {	struct configFileInfo *cfi)
818	/* bracketed title... let's extract it (leaks a byte) */	{
819	char * title;	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
820	title = strdup(line->elements[0].item);	if (kw->type == type)
821	title++;	return kw;
822	*(title + strlen(title) - 1) = '\0';	}
823	return title;	return NULL;
824	}	}
	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;
	}
825
826	buf = realloc(buf, size + 2);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
827	if (size == 0)	{
828	buf[size++] = '\n';	struct keywordTypes *kt = getKeywordByType(type, cfi);
829	else	if (kt)
830	if (buf[size - 1] != '\n')	return kt->key;
831	buf[size++] = '\n';	return "unknown";
832	buf[size] = '\0';	}
833
834	*bufPtr = buf;	static char *getpathbyspec(char *device)
835		{
836		if (!blkid)
837		blkid_get_cache(&blkid, NULL);
838
839	return 0;	return blkid_get_devname(blkid, device, NULL);
840	}	}
841
842	static void lineInit(struct singleLine * line) {	static char *getuuidbydev(char *device)
843	line->indent = NULL;	{
844	line->elements = NULL;	if (!blkid)
845	line->numElements = 0;	blkid_get_cache(&blkid, NULL);
846	line->next = NULL;
847		return blkid_get_tag_value(blkid, "UUID", device);
848	}	}
849
850	static void lineFree(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
851	int i;	struct configFileInfo *cfi)
852		{
853		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
854		if (!kwcmp(kw, keyword, cfi->caseInsensitive))
855		return kw->type;
856		}
857		return LT_UNKNOWN;
858		}
859
860	if (line->indent) free(line->indent);	static struct singleLine *getLineByType(enum lineType_e type,
861		struct singleLine *line)
862		{
863		dbgPrintf("getLineByType(%d): ", type);
864		for (; line; line = line->next) {
865		dbgPrintf("%d:%s ", line->type,
866		line->numElements ? line->elements[0].
867		item : "(empty)");
868		if (line->type & type)
869		break;
870		}
871		dbgPrintf(line ? "\n" : " (failed)\n");
872		return line;
873		}
874
875	for (i = 0; i < line->numElements; i++) {	static int isBracketedTitle(struct singleLine *line)
876	free(line->elements[i].item);	{
877	free(line->elements[i].indent);	if (line->numElements == 1 && *line->elements[0].item == '[') {
878	}	int len = strlen(line->elements[0].item);
879		if (*(line->elements[0].item + len - 1) == ']') {
880		/* FIXME: this is a hack... */
881		if (strcmp(line->elements[0].item, "[defaultboot]")) {
882		return 1;
883		}
884		}
885		}
886		return 0;
887		}
888
889	if (line->elements) free(line->elements);	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
890	lineInit(line);	{
891		return line->type == cfi->entryStart || line->type == LT_OTHER ||
892		(cfi->titleBracketed && isBracketedTitle(line));
893	}	}
894
895	static int lineWrite(FILE * out, struct singleLine * line,	/* extract the title from within brackets (for zipl) */
896	struct configFileInfo * cfi) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
897	int i;	{
898		/* bracketed title... let's extract it */
899		char *title = NULL;
900		if (line->type == LT_TITLE) {
901		char *tmp = line->elements[cfg->cfi->titlePosition].item;
902		if (cfg->cfi->titleBracketed) {
903		tmp++;
904		title = strdup(tmp);
905		*(title + strlen(title) - 1) = '\0';
906		} else {
907		title = strdup(tmp);
908		}
909		} else if (line->type == LT_MENUENTRY)
910		title = strdup(line->elements[1].item);
911		else
912		return NULL;
913		return title;
914		}
915
916	if (fprintf(out, "%s", line->indent) == -1) return -1;	static int readFile(int fd, char **bufPtr)
917		{
918		int alloced = 0, size = 0, i = 0;
919		char *buf = NULL;
920
921		do {
922		size += i;
923		if ((size + 1024) > alloced) {
924		alloced += 4096;
925		buf = realloc(buf, alloced + 1);
926		}
927		} while ((i = read(fd, buf + size, 1024)) > 0);
928
929	for (i = 0; i < line->numElements; i++) {	if (i < 0) {
930	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	fprintf(stderr, _("error reading input: %s\n"),
931	if (fputc('"', out) == EOF) return -1;	strerror(errno));
932		free(buf);
933		return 1;
934		}
935
936	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	buf = realloc(buf, size + 2);
937	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	if (size == 0)
938	}	buf[size++] = '\n';
939		else if (buf[size - 1] != '\n')
940		buf[size++] = '\n';
941		buf[size] = '\0';
942
943	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	*bufPtr = buf;
	if (fputc('"', out) == EOF) return -1;
944
945	if (fprintf(out, "\n") == -1) return -1;	return 0;
946		}
947
948	return 0;	static void lineInit(struct singleLine *line)
949		{
950		line->type = LT_UNIDENTIFIED;
951		line->indent = NULL;
952		line->elements = NULL;
953		line->numElements = 0;
954		line->next = NULL;
955	}	}
956
957	/* we've guaranteed that the buffer ends w/ \n\0 */	struct singleLine *lineDup(struct singleLine *line)
958	static int getNextLine(char ** bufPtr, struct singleLine * line,	{
959	struct configFileInfo * cfi) {	struct singleLine *newLine = malloc(sizeof(*newLine));
960	char * end;
961	char * start = *bufPtr;	newLine->indent = strdup(line->indent);
962	char * chptr;	newLine->next = NULL;
963	int elementsAlloced = 0;	newLine->type = line->type;
964	struct lineElement * element;	newLine->numElements = line->numElements;
965	struct keywordTypes * keywords = cfi->keywords;	newLine->elements = malloc(sizeof(*newLine->elements) *
966	int first = 1;	newLine->numElements);
967	int i;
968		for (int i = 0; i < newLine->numElements; i++) {
969		newLine->elements[i].indent = strdup(line->elements[i].indent);
970		newLine->elements[i].item = strdup(line->elements[i].item);
971		}
972
973	lineFree(line);	return newLine;
974		}
975
976	end = strchr(start, '\n');	static void lineFree(struct singleLine *line)
977	*end = '\0';	{
978	*bufPtr = end + 1;	if (line->indent)
979		free(line->indent);
980
981	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	for (int i = 0; i < line->numElements; i++) {
982		free(line->elements[i].item);
983		free(line->elements[i].indent);
984		}
985
986	line->indent = strndup(start, chptr - start);	if (line->elements)
987	start = chptr;	free(line->elements);
988		lineInit(line);
989		}
990
991	while (start < end) {	static int lineWrite(FILE * out, struct singleLine *line,
992	/* we know !isspace(*start) */	struct configFileInfo *cfi)
993		{
994		if (fprintf(out, "%s", line->indent) == -1)
995		return -1;
996
997		for (int i = 0; i < line->numElements; i++) {
998		/* Need to handle this, because we strip the quotes from
999		* menuentry when read it. */
1000		if (line->type == LT_MENUENTRY && i == 1) {
1001		if (!isquote(*line->elements[i].item)) {
1002		int substring = 0;
1003		/* If the line contains nested quotes, we did
1004		* not strip the "interna" quotes and we must
1005		* use the right quotes again when writing
1006		* the updated file. */
1007		for (int j = i; j < line->numElements; j++) {
1008		if (strchr(line->elements[i].item, '\'')
1009		!= NULL) {
1010		substring = 1;
1011		fprintf(out, "\"%s\"",
1012		line->elements[i].item);
1013		break;
1014		}
1015		}
1016		if (!substring)
1017		fprintf(out, "\'%s\'",
1018		line->elements[i].item);
1019		} else {
1020		fprintf(out, "%s", line->elements[i].item);
1021		}
1022		fprintf(out, "%s", line->elements[i].indent);
1023
1024	if (elementsAlloced == line->numElements) {	continue;
1025	elementsAlloced += 5;	}
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
1026
1027	element = line->elements + line->numElements;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1028		if (fputc('"', out) == EOF)
1029		return -1;
1030
1031		if (fprintf(out, "%s", line->elements[i].item) == -1)
1032		return -1;
1033		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1034		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1035		return -1;
1036		}
1037
1038		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1039		if (fputc('"', out) == EOF)
1040		return -1;
1041
1042	chptr = start;	if (fprintf(out, "\n") == -1)
1043	while (*chptr && !isspace(*chptr)) {	return -1;
1044	if (first && *chptr == '=') break;
1045	chptr++;	return 0;
1046	}	}
1047	element->item = strndup(start, chptr - start);
1048	start = chptr;	/* we've guaranteed that the buffer ends w/ \n\0 */
1049		static int getNextLine(char **bufPtr, struct singleLine *line,
1050		struct configFileInfo *cfi)
1051		{
1052		char *end;
1053		char *start = *bufPtr;
1054		char *chptr;
1055		int elementsAlloced = 0;
1056		struct lineElement *element;
1057		int first = 1;
1058
1059		lineFree(line);
1060
1061	/* lilo actually accepts the pathological case of append = " foo " */	end = strchr(start, '\n');
1062	if (*start == '=')	*end = '\0';
1063	chptr = start + 1;	*bufPtr = end + 1;
1064	else
1065	chptr = start;	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1066
1067	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1068	start = chptr;	start = chptr;
1069
1070	line->numElements++;	while (start < end) {
1071	first = 0;	/* we know !isspace(*start) */
	}
1072
1073	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1074	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1075	else {	line->elements = realloc(line->elements,
1076	for (i = 0; keywords[i].key; i++)	sizeof(*line->elements) *
1077	if (!strcmp(line->elements[0].item, keywords[i].key)) break;	elementsAlloced);
1078		}
	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);
1079
1080	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1081
1082	for (i = 0; i < line->numElements; i++) {	chptr = start;
1083	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1084	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1085	free(line->elements[i].item);	break;
1086	free(line->elements[i].indent);	chptr++;
1087	}	}
1088		if (line->type == LT_UNIDENTIFIED)
1089		line->type = getTypeByKeyword(start, cfi);
1090		element->item = strndup(start, chptr - start);
1091		start = chptr;
1092
1093		/* lilo actually accepts the pathological case of
1094		* append = " foo " */
1095		if (*start == '=')
1096		chptr = start + 1;
1097		else
1098		chptr = start;
1099
1100		do {
1101		for (; *chptr && isspace(*chptr); chptr++) ;
1102		if (*chptr == '=')
1103		chptr = chptr + 1;
1104		} while (isspace(*chptr));
1105
1106		element->indent = strndup(start, chptr - start);
1107		start = chptr;
1108
1109		line->numElements++;
1110		first = 0;
1111		}
1112
1113		if (!line->numElements)
1114	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1115	line->numElements = 0;	else {
1116	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1117		if (line->type == LT_UNKNOWN) {
1118		/* zipl does [title] instead of something reasonable
1119		* like all the other boot loaders.  kind of ugly */
1120		if (cfi->titleBracketed && isBracketedTitle(line)) {
1121		line->type = LT_TITLE;
1122		}
1123
1124		/* this is awkward, but we need to be able to handle
1125		* keywords that begin with a # (specifically for
1126		* #boot in grub.conf), but still make comments lines
1127		* with no elements (everything stored in the indent
1128		*/
1129		if (*line->elements[0].item == '#') {
1130		char *fullLine;
1131		int len;
1132
1133		len = strlen(line->indent);
1134		for (int i = 0; i < line->numElements; i++)
1135		len += strlen(line->elements[i].item) +
1136		strlen(line->elements[i].indent);
1137
1138		fullLine = malloc(len + 1);
1139		strcpy(fullLine, line->indent);
1140		free(line->indent);
1141		line->indent = fullLine;
1142
1143		for (int i = 0; i < line->numElements; i++) {
1144		strcat(fullLine,
1145		line->elements[i].item);
1146		strcat(fullLine,
1147		line->elements[i].indent);
1148		free(line->elements[i].item);
1149		free(line->elements[i].indent);
1150		}
1151
1152		line->type = LT_WHITESPACE;
1153		line->numElements = 0;
1154		}
1155		} else if (line->type == LT_INITRD) {
1156		struct keywordTypes *kw;
1157
1158		kw = getKeywordByType(line->type, cfi);
1159
1160		/* space isn't the only separator, we need to split
1161		* elements up more
1162		*/
1163		if (!isspace(kw->separatorChar)) {
1164		char indent[2] = "";
1165		indent[0] = kw->separatorChar;
1166		for (int i = 1; i < line->numElements; i++) {
1167		char *p;
1168		int numNewElements;
1169
1170		numNewElements = 0;
1171		p = line->elements[i].item;
1172		while (*p != '\0') {
1173		if (*p == kw->separatorChar)
1174		numNewElements++;
1175		p++;
1176		}
1177		if (line->numElements +
1178		numNewElements >= elementsAlloced) {
1179		elementsAlloced +=
1180		numNewElements + 5;
1181		line->elements =
1182		realloc(line->elements,
1183		sizeof(*line->
1184		elements) *
1185		elementsAlloced);
1186		}
1187
1188		for (int j = line->numElements; j > i;
1189		j--) {
1190		line->elements[j +
1191		numNewElements] =
1192		line->elements[j];
1193		}
1194		line->numElements += numNewElements;
1195
1196		p = line->elements[i].item;
1197		while (*p != '\0') {
1198
1199		while (*p != kw->separatorChar
1200		&& *p != '\0')
1201		p++;
1202		if (*p == '\0') {
1203		break;
1204		}
1205
1206		line->elements[i + 1].indent =
1207		line->elements[i].indent;
1208		line->elements[i].indent =
1209		strdup(indent);
1210		*p++ = '\0';
1211		i++;
1212		line->elements[i].item =
1213		strdup(p);
1214		}
1215		}
1216		}
1217		} else if (line->type == LT_SET_VARIABLE) {
1218		/* and if it's a "set blah=" we need to split it
1219		* yet a third way to avoid rhbz# XXX FIXME :/
1220		*/
1221		char *eq;
1222		int l;
1223		int numElements = line->numElements;
1224		struct lineElement *newElements;
1225		eq = strchr(line->elements[1].item, '=');
1226		if (!eq)
1227		return 0;
1228		l = eq - line->elements[1].item;
1229		if (eq[1] != 0)
1230		numElements++;
1231		newElements = calloc(numElements,sizeof (*newElements));
1232		memcpy(&newElements[0], &line->elements[0],
1233		sizeof (newElements[0]));
1234		newElements[1].item =
1235		strndup(line->elements[1].item, l);
1236		newElements[1].indent = "=";
1237		*(eq++) = '\0';
1238		newElements[2].item = strdup(eq);
1239		free(line->elements[1].item);
1240		if (line->elements[1].indent)
1241		newElements[2].indent = line->elements[1].indent;
1242		for (int i = 2; i < line->numElements; i++) {
1243		newElements[i+1].item = line->elements[i].item;
1244		newElements[i+1].indent =
1245		line->elements[i].indent;
1246		}
1247		free(line->elements);
1248		line->elements = newElements;
1249		line->numElements = numElements;
1250		}
1251	}	}
	}
1252
1253	return 0;	return 0;
1254	}	}
1255
1256	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1257	struct configFileInfo * cfi) {	{
1258	int in;	int i;
1259	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1260	int rc;	if (s[i] < '0' || s[i] > '9')
1261	int sawEntry = 0;	return 0;
1262	int movedLine = 0;	return i;
1263	struct grubConfig * cfg;	}
1264	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1265	char * end;	static struct grubConfig *readConfig(const char *inName,
1266	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1267	int i, len;	{
1268	char * buf;	int in;
1269		char *incoming = NULL, *head;
1270	if (!strcmp(inName, "-")) {	int rc;
1271	in = 0;	int sawEntry = 0;
1272	} else {	int movedLine = 0;
1273	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1274	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1275	inName, strerror(errno));	char *end;
1276	return NULL;	struct singleEntry *entry = NULL;
1277		int len;
1278		char *buf;
1279
1280		if (inName == NULL) {
1281		printf("Could not find bootloader configuration\n");
1282		exit(1);
1283		} else if (!strcmp(inName, "-")) {
1284		in = 0;
1285		} else {
1286		if ((in = open(inName, O_RDONLY)) < 0) {
1287		fprintf(stderr, _("error opening %s for read: %s\n"),
1288		inName, strerror(errno));
1289		return NULL;
1290		}
1291	}	}
	}
1292
1293	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1294	close(in);	close(in);
1295	if (rc) return NULL;	if (rc)
1296		return NULL;
1297	head = incoming;
1298	cfg = malloc(sizeof(*cfg));	head = incoming;
1299	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1300	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1301	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1302	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1303	cfg->theLines = NULL;	cfg->cfi = cfi;
1304	cfg->entries = NULL;	cfg->theLines = NULL;
1305	cfg->fallbackImage = 0;	cfg->entries = NULL;
1306		cfg->fallbackImage = 0;
1307	/* copy everything we have */	cfg->isModified = 0;
1308	while (*head) {
1309	line = malloc(sizeof(*line));	/* copy everything we have */
1310	lineInit(line);	while (*head) {
1311		line = malloc(sizeof(*line));
1312		lineInit(line);
1313
1314		if (getNextLine(&head, line, cfi)) {
1315		free(line);
1316		/* XXX memory leak of everything in cfg */
1317		return NULL;
1318		}
1319
1320	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1321	free(line);	free(cfg->primaryIndent);
1322	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1323	return NULL;	} else if (line->numElements) {
1324	}	free(cfg->secondaryIndent);
1325		cfg->secondaryIndent = strdup(line->indent);
1326	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;
	}
1327
1328	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1329	entry->multiboot = 0;	sawEntry = 1;
1330	entry->lines = NULL;	if (!entry) {
1331	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1332	}	entry = cfg->entries;
1333		} else {
1334	if (line->type == LT_DEFAULT && line->numElements == 2) {	entry->next = malloc(sizeof(*entry));
1335	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	entry = entry->next;
1336	defaultLine = line;	}
1337	} else if (line->type == LT_MBMODULE) {
1338	entry->multiboot = 1;	entry->skip = 0;
1339	} else if (line->type == LT_FALLBACK && line->numElements == 2) {	entry->multiboot = 0;
1340	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);	entry->lines = NULL;
1341	if (*end) cfg->fallbackImage = -1;	entry->next = NULL;
1342	} 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';
1343
1344	for (i = 1; i < line->numElements; i++) {	if (line->type == LT_SET_VARIABLE) {
1345	strcat(buf, line->elements[i].item);	dbgPrintf("found 'set' command (%d elements): ",
1346	free(line->elements[i].item);	line->numElements);
1347		dbgPrintf("%s", line->indent);
1348		for (int i = 0; i < line->numElements; i++)
1349		dbgPrintf("\"%s\"%s", line->elements[i].item,
1350		line->elements[i].indent);
1351		dbgPrintf("\n");
1352		struct keywordTypes *kwType =
1353		getKeywordByType(LT_DEFAULT, cfi);
1354		if (kwType && line->numElements == 3
1355		&& !strcmp(line->elements[1].item, kwType->key)
1356		&& !is_special_grub2_variable(
1357		line->elements[2].item)) {
1358		dbgPrintf("Line sets default config\n");
1359		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1360		defaultLine = line;
1361		}
1362		} else if (iskernel(line->type)) {
1363		/* if by some freak chance this is multiboot and the
1364		* "module" lines came earlier in the template, make
1365		* sure to use LT_HYPER instead of LT_KERNEL now
1366		*/
1367		if (entry && entry->multiboot)
1368		line->type = LT_HYPER;
1369
1370		} else if (line->type == LT_MBMODULE) {
1371		/* go back and fix the LT_KERNEL line to indicate
1372		* LT_HYPER instead, now that we know this is a
1373		* multiboot entry.  This only applies to grub, but
1374		* that's the only place we should find LT_MBMODULE
1375		* lines anyway.
1376		*/
1377		for (struct singleLine * l = entry->lines; l;
1378		l = l->next) {
1379		if (l->type == LT_HYPER)
1380		break;
1381		else if (iskernel(l->type)) {
1382		l->type = LT_HYPER;
1383		break;
1384		}
1385		}
1386		entry->multiboot = 1;
1387
1388		} else if (line->type == LT_HYPER) {
1389		entry->multiboot = 1;
1390
1391		} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1392		cfg->fallbackImage =
1393		strtol(line->elements[1].item, &end, 10);
1394		if (*end)
1395		cfg->fallbackImage = -1;
1396
1397		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1398		|| (line->type == LT_TITLE
1399		&& line->numElements > 1)) {
1400		/* make the title/default a single argument (undoing
1401		* our parsing) */
1402		len = 0;
1403		for (int i = 1; i < line->numElements; i++) {
1404		len += strlen(line->elements[i].item);
1405		len += strlen(line->elements[i].indent);
1406		}
1407		buf = malloc(len + 1);
1408		*buf = '\0';
1409
1410		for (int i = 1; i < line->numElements; i++) {
1411		strcat(buf, line->elements[i].item);
1412		free(line->elements[i].item);
1413
1414		if ((i + 1) != line->numElements) {
1415		strcat(buf, line->elements[i].indent);
1416		free(line->elements[i].indent);
1417		}
1418		}
1419
1420		line->elements[1].indent =
1421		line->elements[line->numElements - 1].indent;
1422		line->elements[1].item = buf;
1423		line->numElements = 2;
1424		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1425		/* let --remove-kernel="TITLE=what" work */
1426		len = 0;
1427		char *extras;
1428		char *title;
1429		/* initially unseen value */
1430		char quote_char = '\0';
1431
1432		for (int i = 1; i < line->numElements; i++) {
1433		len += strlen(line->elements[i].item);
1434		len += strlen(line->elements[i].indent);
1435		}
1436		buf = malloc(len + 1);
1437		*buf = '\0';
1438
1439		/* allocate mem for extra flags. */
1440		extras = malloc(len + 1);
1441		*extras = '\0';
1442
1443		/* get title. */
1444		for (int i = 0; i < line->numElements; i++) {
1445		if (!strcmp
1446		(line->elements[i].item, "menuentry"))
1447		continue;
1448		if (isquote(*line->elements[i].item)
1449		&& quote_char == '\0') {
1450		/* ensure we properly pair off quotes */
1451		quote_char = *line->elements[i].item;
1452		title = line->elements[i].item + 1;
1453		} else {
1454		title = line->elements[i].item;
1455		}
1456
1457		len = strlen(title);
1458		if (title[len - 1] == quote_char) {
1459		strncat(buf, title, len - 1);
1460		break;
1461		} else {
1462		strcat(buf, title);
1463		strcat(buf, line->elements[i].indent);
1464		}
1465		}
1466
1467		/* get extras */
1468		int count = 0;
1469		quote_char = '\0';
1470		for (int i = 0; i < line->numElements; i++) {
1471		if (count >= 2) {
1472		strcat(extras, line->elements[i].item);
1473		strcat(extras,
1474		line->elements[i].indent);
1475		}
1476
1477		if (!strcmp
1478		(line->elements[i].item, "menuentry"))
1479		continue;
1480
1481		/* count ' or ", there should be two in menuentry line. */
1482		if (isquote(*line->elements[i].item)
1483		&& quote_char == '\0') {
1484		/* ensure we properly pair off quotes */
1485		quote_char = *line->elements[i].item;
1486		count++;
1487		}
1488
1489		len = strlen(line->elements[i].item);
1490
1491		if (line->elements[i].item[len - 1] ==
1492		quote_char)
1493		count++;
1494
1495		/* ok, we get the final ' or ", others are extras. */
1496		}
1497		line->elements[1].indent =
1498		line->elements[line->numElements - 2].indent;
1499		line->elements[1].item = buf;
1500		line->elements[2].indent =
1501		line->elements[line->numElements - 2].indent;
1502		line->elements[2].item = extras;
1503		line->numElements = 3;
1504		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1505		/* Strip off any " which may be present; they'll be
1506		* put back on write. This is one of the few (the
1507		* only?) places that grubby canonicalizes the output
1508		*/
1509		if (line->numElements >= 2) {
1510		int last, len;
1511
1512		if (isquote(*line->elements[1].item))
1513		memmove(line->elements[1].item,
1514		line->elements[1].item + 1,
1515		strlen(line->elements[1].item +
1516		1) + 1);
1517
1518		last = line->numElements - 1;
1519		len = strlen(line->elements[last].item) - 1;
1520		if (isquote(line->elements[last].item[len]))
1521		line->elements[last].item[len] = '\0';
1522		}
1523		}
1524
1525	if ((i + 1) != line->numElements) {	if (line->type == LT_DEFAULT && line->numElements == 2) {
1526	strcat(buf, line->elements[i].indent);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1527	free(line->elements[i].indent);	defaultLine = line;
1528	}	}
	}
	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';
	}
1529
1530	}	/* If we find a generic config option which should live at the
1531		top of the file, move it there. Old versions of grubby were
1532		probably responsible for putting new images in the wrong
1533		place in front of it anyway. */
1534		if (sawEntry && line->type == LT_GENERIC) {
1535		struct singleLine **l = &cfg->theLines;
1536		struct singleLine **last_nonws = &cfg->theLines;
1537		while (*l) {
1538		if ((*l)->type != LT_WHITESPACE)
1539		last_nonws = &((*l)->next);
1540		l = &((*l)->next);
1541		}
1542		line->next = *last_nonws;
1543		*last_nonws = line;
1544		movedLine = 1;
1545		continue; /* without setting 'last' */
1546		}
1547
1548	/* If we find a generic config option which should live at the	/* If a second line of whitespace happens after a generic
1549	top of the file, move it there. Old versions of grubby were	* option which was moved, drop it. */
1550	probably responsible for putting new images in the wrong	if (movedLine && line->type == LT_WHITESPACE
1551	place in front of it anyway. */	&& last->type == LT_WHITESPACE) {
1552	if (sawEntry && line->type == LT_GENERIC) {	lineFree(line);
1553	struct singleLine **l = &cfg->theLines;	free(line);
1554	struct singleLine **last_nonws = &cfg->theLines;	movedLine = 0;
1555	while (*l) {	continue;
1556	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);
1557	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;
	}
	}
1558
1559	last = line;	if (sawEntry) {
1560	}	if (!entry->lines)
1561		entry->lines = line;
1562		else
1563		last->next = line;
1564		dbgPrintf("readConfig added %s to %p\n",
1565		getKeyByType(line->type, cfi), entry);
1566
1567		/* we could have seen this outside of an entry... if
1568		* so, we ignore it like any other line we don't grok
1569		*/
1570		if (line->type == LT_ENTRY_END && sawEntry)
1571		sawEntry = 0;
1572		} else {
1573		if (!cfg->theLines)
1574		cfg->theLines = line;
1575		else
1576		last->next = line;
1577		dbgPrintf("readConfig added %s to cfg\n",
1578		getKeyByType(line->type, cfi));
1579		}
1580
1581	free(incoming);	last = line;
1582		}
1583
1584	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++;
	}
1585
1586	if (entry) cfg->defaultImage = i;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1587		if (defaultLine) {
1588		if (defaultLine->numElements > 2 &&
1589		cfi->defaultSupportSaved &&
1590		!strncmp(defaultLine->elements[2].item,
1591		"\"${saved_entry}\"", 16)) {
1592		cfg->cfi->defaultIsSaved = 1;
1593		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1594		if (cfg->cfi->getEnv) {
1595		char *defTitle =
1596		cfi->getEnv(cfg->cfi, "saved_entry");
1597		if (defTitle) {
1598		int index = 0;
1599		if (isnumber(defTitle)) {
1600		index = atoi(defTitle);
1601		entry =
1602		findEntryByIndex(cfg,
1603		index);
1604		} else {
1605		entry =
1606		findEntryByTitle(cfg,
1607		defTitle,
1608		&index);
1609		}
1610		if (entry)
1611		cfg->defaultImage = index;
1612		}
1613		}
1614		} else if (cfi->defaultIsVariable) {
1615		if (defaultLine->numElements == 2) {
1616		char *value = defaultLine->elements[1].item + 8;
1617		while (*value && (*value == '"' ||
1618		*value == '\'' ||
1619		*value == ' ' ||
1620		*value == '\t'))
1621		value++;
1622		cfg->defaultImage = strtol(value, &end, 10);
1623		while (*end && (*end == '"' || *end == '\'' ||
1624		*end == ' ' || *end == '\t'))
1625		end++;
1626		if (*end)
1627		cfg->defaultImage = NO_DEFAULT_ENTRY;
1628		} else if (defaultLine->numElements == 3) {
1629		char *value = defaultLine->elements[2].item;
1630		while (*value && (*value == '"' ||
1631		*value == '\'' ||
1632		*value == ' ' ||
1633		*value == '\t'))
1634		value++;
1635		cfg->defaultImage = strtol(value, &end, 10);
1636		while (*end && (*end == '"' || *end == '\'' ||
1637		*end == ' ' || *end == '\t'))
1638		end++;
1639		if (*end)
1640		cfg->defaultImage = NO_DEFAULT_ENTRY;
1641		}
1642		} else if (cfi->defaultSupportSaved &&
1643		!strncmp(defaultLine->elements[1].item, "saved",
1644		5)) {
1645		cfg->defaultImage = DEFAULT_SAVED;
1646		} else if (cfi->defaultIsIndex) {
1647		cfg->defaultImage =
1648		strtol(defaultLine->elements[1].item, &end, 10);
1649		if (*end)
1650		cfg->defaultImage = NO_DEFAULT_ENTRY;
1651		} else if (defaultLine->numElements >= 2) {
1652		int i = 0;
1653		while ((entry = findEntryByIndex(cfg, i))) {
1654		for (line = entry->lines; line;
1655		line = line->next)
1656		if (line->type == LT_TITLE)
1657		break;
1658
1659		if (!cfi->titleBracketed) {
1660		if (line && (line->numElements >= 2) &&
1661		!strcmp(defaultLine->elements[1].
1662		item,
1663		line->elements[1].item))
1664		break;
1665		} else if (line) {
1666		if (!strcmp
1667		(defaultLine->elements[1].item,
1668		extractTitle(cfg, line)))
1669		break;
1670		}
1671		i++;
1672		entry = NULL;
1673		}
1674
1675		if (entry) {
1676		cfg->defaultImage = i;
1677		} else {
1678		cfg->defaultImage = NO_DEFAULT_ENTRY;
1679		}
1680		}
1681		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1682		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1683		if (defTitle) {
1684		int index = 0;
1685		if (isnumber(defTitle)) {
1686		index = atoi(defTitle);
1687		entry = findEntryByIndex(cfg, index);
1688		} else {
1689		entry = findEntryByTitle(cfg, defTitle, &index);
1690		}
1691		if (entry)
1692		cfg->defaultImage = index;
1693		}
1694		} else {
1695		cfg->defaultImage = FIRST_ENTRY_INDEX;
1696	}	}
	}
1697
1698	return cfg;	return cfg;
1699	}	}
1700
1701	static void writeDefault(FILE * out, char * indent,	static void writeDefault(FILE * out, char *indent,
1702	char * separator, struct grubConfig * cfg) {	char *separator, struct grubConfig *cfg)
1703	struct singleEntry * entry;	{
1704	struct singleLine * line;	struct singleEntry *entry;
1705	int i;	struct singleLine *line;
1706		int i;
1707
1708		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1709		return;
1710
1711		if (cfg->defaultImage == DEFAULT_SAVED)
1712		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1713		else if (cfg->cfi->defaultIsSaved) {
1714		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1715		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1716		char *title;
1717		int trueIndex, currentIndex;
1718
1719		trueIndex = 0;
1720		currentIndex = 0;
1721
1722		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1723		if (!entry->skip) {
1724		if (trueIndex == cfg->defaultImage) {
1725		break;
1726		}
1727		trueIndex++;
1728		}
1729		currentIndex++;
1730		}
1731		line = getLineByType(LT_MENUENTRY, entry->lines);
1732		if (!line)
1733		line = getLineByType(LT_TITLE, entry->lines);
1734		if (line) {
1735		title = extractTitle(cfg, line);
1736		if (title)
1737		cfg->cfi->setEnv(cfg->cfi,
1738		"saved_entry", title);
1739		}
1740		}
1741		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1742		if (cfg->cfi->defaultIsIndex) {
1743		if (cfg->cfi->defaultIsVariable) {
1744		fprintf(out, "%sset default=\"%d\"\n", indent,
1745		cfg->defaultImage);
1746		} else {
1747		fprintf(out, "%sdefault%s%d\n", indent,
1748		separator, cfg->defaultImage);
1749		}
1750		} else {
1751		int image = cfg->defaultImage;
1752
1753	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	entry = cfg->entries;
1754		while (entry && entry->skip)
1755		entry = entry->next;
1756
1757		i = 0;
1758		while (entry && i < image) {
1759		entry = entry->next;
1760
1761		while (entry && entry->skip)
1762		entry = entry->next;
1763		i++;
1764		}
1765
1766		if (!entry)
1767		return;
1768
1769		line = getLineByType(LT_TITLE, entry->lines);
1770
1771		if (line && line->numElements >= 2)
1772		fprintf(out, "%sdefault%s%s\n", indent,
1773		separator, line->elements[1].item);
1774		else if (line && (line->numElements == 1)
1775		&& cfg->cfi->titleBracketed) {
1776		char *title = extractTitle(cfg, line);
1777		if (title) {
1778		fprintf(out, "%sdefault%s%s\n", indent,
1779		separator, title);
1780		free(title);
1781		}
1782		}
1783		}
1784		}
1785		}
1786
1787	if (cfg->defaultImage == DEFAULT_SAVED)	static int writeConfig(struct grubConfig *cfg, char *outName,
1788	fprintf(out, "%sdefault%ssaved\n", indent, separator);	const char *prefix)
1789	else if (cfg->defaultImage > -1) {	{
1790	if (cfg->cfi->defaultIsIndex) {	FILE *out;
1791	fprintf(out, "%sdefault%s%d\n", indent, separator,	struct singleLine *line;
1792	cfg->defaultImage);	struct singleEntry *entry;
1793		char *tmpOutName;
1794		int needs = MAIN_DEFAULT;
1795		struct stat sb;
1796		int i;
1797		int rc = 0;
1798
1799		if (!strcmp(outName, "-")) {
1800		out = stdout;
1801		tmpOutName = NULL;
1802	} else {	} else {
1803	int image = cfg->defaultImage;	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1804		char *buf;
1805		int len = 256;
1806		int rc;
1807
1808		/* most likely the symlink is relative, so change our
1809		directory to the dir of the symlink */
1810		char *dir = strdupa(outName);
1811		rc = chdir(dirname(dir));
1812		do {
1813		buf = alloca(len + 1);
1814		rc = readlink(basename(outName), buf, len);
1815		if (rc == len)
1816		len += 256;
1817		} while (rc == len);
1818
1819		if (rc < 0) {
1820		fprintf(stderr,
1821		_
1822		("grubby: error readlink link %s: %s\n"),
1823		outName, strerror(errno));
1824		return 1;
1825		}
1826
1827	entry = cfg->entries;	outName = buf;
1828	while (entry && entry->skip) entry = entry->next;	outName[rc] = '\0';
1829		}
	i = 0;
	while (entry && i < image) {
	entry = entry->next;
1830
1831	while (entry && entry->skip) entry = entry->next;	tmpOutName = alloca(strlen(outName) + 2);
1832	i++;	sprintf(tmpOutName, "%s-", outName);
1833	}	out = fopen(tmpOutName, "w");
1834		if (!out) {
1835		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1836		tmpOutName, strerror(errno));
1837		return 1;
1838		}
1839
1840	if (!entry) return;	if (!stat(outName, &sb)) {
1841		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1842		fprintf(stderr,
1843		_
1844		("grubby: error setting perms on %s: %s\n"),
1845		tmpOutName, strerror(errno));
1846		fclose(out);
1847		unlink(tmpOutName);
1848		return 1;
1849		}
1850		}
1851		}
1852
1853	line = entry->lines;	line = cfg->theLines;
1854	while (line && line->type != LT_TITLE) line = line->next;	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1855		while (line) {
1856		if (line->type == LT_SET_VARIABLE && defaultKw &&
1857		line->numElements == 3 &&
1858		!strcmp(line->elements[1].item, defaultKw->key) &&
1859		!is_special_grub2_variable(line->elements[2].item)) {
1860		writeDefault(out, line->indent,
1861		line->elements[0].indent, cfg);
1862		needs &= ~MAIN_DEFAULT;
1863		} else if (line->type == LT_DEFAULT) {
1864		writeDefault(out, line->indent,
1865		line->elements[0].indent, cfg);
1866		needs &= ~MAIN_DEFAULT;
1867		} else if (line->type == LT_FALLBACK) {
1868		if (cfg->fallbackImage > -1)
1869		fprintf(out, "%s%s%s%d\n", line->indent,
1870		line->elements[0].item,
1871		line->elements[0].indent,
1872		cfg->fallbackImage);
1873		} else {
1874		if (lineWrite(out, line, cfg->cfi) == -1) {
1875		fprintf(stderr,
1876		_("grubby: error writing %s: %s\n"),
1877		tmpOutName, strerror(errno));
1878		fclose(out);
1879		unlink(tmpOutName);
1880		return 1;
1881		}
1882		}
1883
1884	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));
	}
1885	}	}
	}
	}
1886
1887	static int writeConfig(struct grubConfig * cfg, char * outName,	if (needs & MAIN_DEFAULT) {
1888	const char * prefix) {	writeDefault(out, cfg->primaryIndent, "=", cfg);
1889	FILE * out;	needs &= ~MAIN_DEFAULT;
	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;
	}
	}
	}
	line = cfg->theLines;
	while (line) {
	if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
1890	}	}
1891
1892	line = line->next;	i = 0;
1893	}	while ((entry = findEntryByIndex(cfg, i++))) {
1894		if (entry->skip)
1895		continue;
1896
1897		line = entry->lines;
1898		while (line) {
1899		if (lineWrite(out, line, cfg->cfi) == -1) {
1900		fprintf(stderr,
1901		_("grubby: error writing %s: %s\n"),
1902		tmpOutName, strerror(errno));
1903		fclose(out);
1904		unlink(tmpOutName);
1905		return 1;
1906		}
1907		line = line->next;
1908		}
1909		}
1910
1911	if (needs & MAIN_DEFAULT) {	if (tmpOutName) {
1912	writeDefault(out, cfg->primaryIndent, "=", cfg);	/* write userspace buffers */
1913	needs &= ~MAIN_DEFAULT;	if (fflush(out))
1914	}	rc = 1;
1915
1916		/* purge the write-back cache with fsync() */
1917		if (fsync(fileno(out)))
1918		rc = 1;
1919
1920		if (fclose(out))
1921		rc = 1;
1922
1923		if (rc == 0 && rename(tmpOutName, outName)) {
1924		unlink(tmpOutName);
1925		rc = 1;
1926		}
1927
1928	i = 0;	/* fsync() the destination directory after rename */
1929	while ((entry = findEntryByIndex(cfg, i++))) {	if (rc == 0) {
1930	if (entry->skip) continue;	int dirfd;
1931
1932		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1933		if (dirfd < 0)
1934		rc = 1;
1935		else if (fsync(dirfd))
1936		rc = 1;
1937
1938	line = entry->lines;	if (dirfd >= 0)
1939	while (line) {	close(dirfd);
1940	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;
	}
	}
1941
1942	if (tmpOutName) {	if (rc == 1)
1943	if (rename(tmpOutName, outName)) {	fprintf(stderr,
1944	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	_("grubby: error flushing data: %m\n"));
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1945	}	}
	}
1946
1947	return 0;	return rc;
1948	}	}
1949
1950	static int numEntries(struct grubConfig *cfg) {	static int numEntries(struct grubConfig *cfg)
1951	int i = 0;	{
1952	struct singleEntry * entry;	int i = 0;
1953		struct singleEntry *entry;
1954	entry = cfg->entries;
1955	while (entry) {	entry = cfg->entries;
1956	if (!entry->skip)	while (entry) {
1957	i++;	if (!entry->skip)
1958	entry = entry->next;	i++;
1959	}	entry = entry->next;
1960	return i;	}
1961		return i;
1962	}	}
1963
1964	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	static char *findDiskForRoot()
1965	int skipRemoved, int flags) {	{
1966	struct singleLine * line;	int fd;
1967	char * fullName;	char buf[65536];
1968	int i;	char *devname;
1969	struct stat sb, sb2;	char *chptr;
1970	char * dev;	int rc;
1971	char * end;
1972	char * rootspec;	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1973		fprintf(stderr, "grubby: failed to open %s: %s\n",
1974	line = entry->lines;	_PATH_MOUNTED, strerror(errno));
1975	while (line && line->type != LT_KERNEL) line = line->next;	return NULL;
1976		}
1977	if (!line) return 0;
1978	if (skipRemoved && entry->skip) return 0;	rc = read(fd, buf, sizeof(buf) - 1);
1979	if (line->numElements < 2) return 0;	if (rc <= 0) {
1980		fprintf(stderr, "grubby: failed to read %s: %s\n",
1981	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	_PATH_MOUNTED, strerror(errno));
1982		close(fd);
1983	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;
	}
1984	}	}
1985	}	close(fd);
1986		buf[rc] = '\0';
1987	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;
	}
1988
1989	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);
1990
1991	if (sb.st_rdev != sb2.st_dev) return 0;	while (chptr && chptr != buf + rc) {
1992		devname = chptr;
1993
1994	return 1;	/*
1995	}	* The first column of a mtab entry is the device, but if the
1996		* entry is a special device it won't start with /, so move
1997		* on to the next line.
1998		*/
1999		if (*devname != '/') {
2000		chptr = strchr(chptr, '\n');
2001		if (chptr)
2002		chptr++;
2003		continue;
2004		}
2005
2006	/* returns the first match on or after the one pointed to by index (if index	/* Seek to the next space */
2007	is not NULL) which is not marked as skip */	chptr = strchr(chptr, ' ');
2008	struct singleEntry * findEntryByPath(struct grubConfig * config,	if (!chptr) {
2009	const char * kernel, const char * prefix,	fprintf(stderr, "grubby: error parsing %s: %s\n",
2010	int * index) {	_PATH_MOUNTED, strerror(errno));
2011	struct singleEntry * entry = NULL;	return NULL;
2012	struct singleLine * line;	}
	int i;
	char * chptr;
	char * rootspec = NULL;
	enum lineType_e checkType = LT_KERNEL;
2013
2014	if (isdigit(*kernel)) {	/*
2015	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	* The second column of a mtab entry is the mount point, we
2016		* are looking for '/' obviously.
2017		*/
2018		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2019		/* remember the last / entry in mtab */
2020		foundanswer = devname;
2021		}
2022
2023	i = 0;	/* Next line */
2024	indexVars[i] = strtol(kernel, &chptr, 10);	chptr = strchr(chptr, '\n');
2025	while (*chptr == ',') {	if (chptr)
2026	i++;	chptr++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
2027	}	}
2028
2029	if (*chptr) {	/* Return the last / entry found */
2030	/* can't parse it, bail */	if (foundanswer) {
2031	return NULL;	chptr = strchr(foundanswer, ' ');
2032		*chptr = '\0';
2033		return strdup(foundanswer);
2034	}	}
2035
2036	indexVars[i + 1] = -1;	return NULL;
2037		}
2038	i = 0;
2039	if (index) {	void printEntry(struct singleEntry *entry, FILE * f)
2040	while (i < *index) i++;	{
2041	if (indexVars[i] == -1) return NULL;	int i;
2042		struct singleLine *line;
2043
2044		for (line = entry->lines; line; line = line->next) {
2045		log_message(f, "DBG: %s", line->indent);
2046		for (i = 0; i < line->numElements; i++) {
2047		/* Need to handle this, because we strip the quotes from
2048		* menuentry when read it. */
2049		if (line->type == LT_MENUENTRY && i == 1) {
2050		if (!isquote(*line->elements[i].item))
2051		log_message(f, "\'%s\'",
2052		line->elements[i].item);
2053		else
2054		log_message(f, "%s",
2055		line->elements[i].item);
2056		log_message(f, "%s", line->elements[i].indent);
2057
2058		continue;
2059		}
2060
2061		log_message(f, "%s%s",
2062		line->elements[i].item,
2063		line->elements[i].indent);
2064		}
2065		log_message(f, "\n");
2066	}	}
2067		}
2068
2069	entry = findEntryByIndex(config, indexVars[i]);	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2070	if (!entry) return NULL;	...)
2071		{
2072		static int once;
2073		va_list argp, argq;
2074
2075		va_start(argp, fmt);
2076
2077		va_copy(argq, argp);
2078		if (!once) {
2079		log_time(NULL);
2080		log_message(NULL, "command line: %s\n", saved_command_line);
2081		}
2082		log_message(NULL, "DBG: Image entry %s: ",
2083		okay ? "succeeded" : "failed");
2084		log_vmessage(NULL, fmt, argq);
2085
2086		printEntry(entry, NULL);
2087		va_end(argq);
2088
2089		if (!debug) {
2090		once = 1;
2091		va_end(argp);
2092		return;
2093		}
2094
2095		if (okay) {
2096		va_end(argp);
2097		return;
2098		}
2099
2100		if (!once)
2101		log_message(stderr, "DBG: command line: %s\n",
2102		saved_command_line);
2103		once = 1;
2104		fprintf(stderr, "DBG: Image entry failed: ");
2105		vfprintf(stderr, fmt, argp);
2106		printEntry(entry, stderr);
2107		va_end(argp);
2108		}
2109
2110	line = entry->lines;	#define beginswith(s, c) ((s) && (s)[0] == (c))
	while (line && line->type != LT_KERNEL)
	line = line->next;
2111
2112	if (!line) return NULL;	static int endswith(const char *s, char c)
2113		{
2114		int slen;
2115
2116	if (index) *index = indexVars[i];	if (!s || !s[0])
2117	return entry;	return 0;
2118	}	slen = strlen(s) - 1;
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
	} else {
	entry = findEntryByIndex(config, config->defaultImage);
	if (entry && entry->skip)
	entry = NULL;
	else if (index)
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2119
2120	while ((entry = findEntryByIndex(config, i))) {	return s[slen] == c;
2121	if (!entry->skip) break;	}
	i++;
	}
2122
2123	if (entry && index)	typedef struct {
2124	*index = i;	const char *start;
2125	} else {	size_t      chars;
2126	if (index)	} field;
2127	i = *index;
2128	else	static int iscomma(int c)
2129	i = 0;	{
2130		return c == ',';
2131		}
2132
2133	if (!strncmp(kernel, "TITLE=", 6)) {	static int isequal(int c)
2134	prefix = "";	{
2135	checkType = LT_TITLE;	return c == '=';
2136	kernel += 6;	}
2137	}
2138		static field findField(const field *in, typeof(isspace) *isdelim, field *out)
2139	while ((entry = findEntryByIndex(config, i))) {	{
2140	line = entry->lines;	field nxt = {};
2141	while (line && line->type != checkType) line=line->next;	size_t off = 0;
2142
2143		while (off < in->chars && isdelim(in->start[off]))
2144	if (line && line->numElements >= 2 && !entry->skip) {	off++;
2145	rootspec = getRootSpecifier(line->elements[1].item);
2146	if (!strcmp(line->elements[1].item  +	if (off == in->chars)
2147	((rootspec != NULL) ? strlen(rootspec) : 0),	return nxt;
2148	kernel + strlen(prefix)))
2149	break;	out->start = &in->start[off];
2150	}	out->chars = 0;
2151
2152	/* have to check multiboot lines too */	while (off + out->chars < in->chars && !isdelim(out->start[out->chars]))
2153	if (entry->multiboot) {	out->chars++;
2154	while (line && line->type != LT_MBMODULE) line = line->next;
2155	if (line && line->numElements >= 2 && !entry->skip) {	nxt.start = out->start + out->chars;
2156	rootspec = getRootSpecifier(line->elements[1].item);	nxt.chars = in->chars - off - out->chars;
2157	if (!strcmp(line->elements[1].item  +	return nxt;
2158	((rootspec != NULL) ? strlen(rootspec) : 0),	}
2159	kernel + strlen(prefix)))
2160	break;	static int fieldEquals(const field *in, const char *str)
2161	}	{
2162	}	return in->chars == strlen(str) &&
2163		strncmp(in->start, str, in->chars) == 0;
2164		}
2165
2166		/* Parse /proc/mounts to determine the subvolume prefix. */
2167		static size_t subvolPrefix(const char *str)
2168		{
2169		FILE *file = NULL;
2170		char *line = NULL;
2171		size_t prfx = 0;
2172		size_t size = 0;
2173
2174		file = fopen(mounts, "r");
2175		if (!file)
2176		return 0;
2177
2178		for (ssize_t s; (s = getline(&line, &size, file)) >= 0; ) {
2179		field nxt = { line, s };
2180		field dev = {};
2181		field path = {};
2182		field type = {};
2183		field opts = {};
2184		field opt = {};
2185
2186		nxt = findField(&nxt, isspace, &dev);
2187		if (!nxt.start)
2188		continue;
2189
2190		nxt = findField(&nxt, isspace, &path);
2191		if (!nxt.start)
2192		continue;
2193
2194		nxt = findField(&nxt, isspace, &type);
2195		if (!nxt.start)
2196		continue;
2197
2198		nxt = findField(&nxt, isspace, &opts);
2199		if (!nxt.start)
2200		continue;
2201
2202		if (!fieldEquals(&type, "btrfs"))
2203		continue;
2204
2205		/* We have found a btrfs mount point. */
2206
2207		nxt = opts;
2208		while ((nxt = findField(&nxt, iscomma, &opt)).start) {
2209		field key = {};
2210		field val = {};
2211
2212		opt = findField(&opt, isequal, &key);
2213		if (!opt.start)
2214		continue;
2215
2216		opt = findField(&opt, isequal, &val);
2217		if (!opt.start)
2218		continue;
2219
2220		if (!fieldEquals(&key, "subvol"))
2221		continue;
2222
2223		/* We have found a btrfs subvolume mount point. */
2224
2225		if (strncmp(val.start, str, val.chars))
2226		continue;
2227
2228		if (val.start[val.chars - 1] != '/' &&
2229		str[val.chars] != '/')
2230		continue;
2231
2232	i++;	/* The subvolume mount point matches our input. */
2233
2234		if (prfx < val.chars)
2235		prfx = val.chars;
2236		}
2237	}	}
2238
2239	if (index) *index = i;	dbgPrintf("%s(): str: '%s', prfx: '%s'\n", __FUNCTION__, str, prfx);
	}
2240
2241	if (!entry) return NULL;	fclose(file);
2242		free(line);
2243		return prfx;
2244		}
2245
2246	/* make sure this entry has a kernel identifier; this skips non-Linux	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2247	boot entries (could find netbsd etc, though, which is unfortunate) */	int skipRemoved, int flags)
2248	line = entry->lines;	{
2249	while (line && line->type != LT_KERNEL) line = line->next;	struct singleLine *line;
2250	if (!line) {	char *fullName;
2251	if (!index) index = &i;	int i;
2252	(*index)++;	char *dev;
2253	return findEntryByPath(config, kernel, prefix, index);	size_t rs;
2254	}	char *rootdev;
2255
2256		if (skipRemoved && entry->skip) {
2257		notSuitablePrintf(entry, 0, "marked to skip\n");
2258		return 0;
2259		}
2260
2261		line =
2262		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2263		entry->lines);
2264		if (!line) {
2265		notSuitablePrintf(entry, 0, "no line found\n");
2266		return 0;
2267		}
2268		if (line->numElements < 2) {
2269		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2270		line->numElements);
2271		return 0;
2272		}
2273
2274		if (flags & GRUBBY_BADIMAGE_OKAY) {
2275		notSuitablePrintf(entry, 1, "\n");
2276		return 1;
2277		}
2278
2279		fullName = alloca(strlen(bootPrefix) +
2280		strlen(line->elements[1].item) + 1);
2281		rs = getRootSpecifier(line->elements[1].item);
2282		int hasslash = endswith(bootPrefix, '/') ||
2283		beginswith(line->elements[1].item + rs, '/');
2284		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2285		line->elements[1].item + rs);
2286		if (access(fullName, R_OK)) {
2287		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2288		return 0;
2289		}
2290		for (i = 2; i < line->numElements; i++)
2291		if (!strncasecmp(line->elements[i].item, "root=", 5))
2292		break;
2293		if (i < line->numElements) {
2294		dev = line->elements[i].item + 5;
2295		} else {
2296		/* look for a lilo style LT_ROOT line */
2297		line = getLineByType(LT_ROOT, entry->lines);
2298
2299		if (line && line->numElements >= 2) {
2300		dev = line->elements[1].item;
2301		} else {
2302		/* didn't succeed in finding a LT_ROOT, let's try
2303		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2304		* for the args, so check that too.
2305		*/
2306		line =
2307		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2308		entry->lines);
2309
2310		/* failed to find one */
2311		if (!line) {
2312		notSuitablePrintf(entry, 0, "no line found\n");
2313		return 0;
2314		}
2315
2316		for (i = 1; i < line->numElements; i++)
2317		if (!strncasecmp
2318		(line->elements[i].item, "root=", 5))
2319		break;
2320		if (i < line->numElements)
2321		dev = line->elements[i].item + 5;
2322		else {
2323		notSuitablePrintf(entry, 0,
2324		"no root= entry found\n");
2325		/* it failed too...  can't find root= */
2326		return 0;
2327		}
2328		}
2329		}
2330
2331		dev = getpathbyspec(dev);
2332		if (!getpathbyspec(dev)) {
2333		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2334		dev);
2335		return 0;
2336		} else
2337		dev = getpathbyspec(dev);
2338
2339		rootdev = findDiskForRoot();
2340		if (!rootdev) {
2341		notSuitablePrintf(entry, 0, "can't find root device\n");
2342		return 0;
2343		}
2344
2345		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2346		notSuitablePrintf(entry, 0,
2347		"uuid missing: rootdev %s, dev %s\n",
2348		getuuidbydev(rootdev), getuuidbydev(dev));
2349		free(rootdev);
2350		return 0;
2351		}
2352
2353		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2354		notSuitablePrintf(entry, 0,
2355		"uuid mismatch: rootdev %s, dev %s\n",
2356		getuuidbydev(rootdev), getuuidbydev(dev));
2357		free(rootdev);
2358		return 0;
2359		}
2360
2361		free(rootdev);
2362		notSuitablePrintf(entry, 1, "\n");
2363
2364		return 1;
2365		}
2366
2367		/* returns the first match on or after the one pointed to by index (if index
2368		is not NULL) which is not marked as skip */
2369		struct singleEntry *findEntryByPath(struct grubConfig *config,
2370		const char *kernel, const char *prefix,
2371		int *index)
2372		{
2373		struct singleEntry *entry = NULL;
2374		struct singleLine *line;
2375		int i;
2376		char *chptr;
2377		enum lineType_e checkType = LT_KERNEL;
2378
2379		if (isdigit(*kernel)) {
2380		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2381
2382		i = 0;
2383		indexVars[i] = strtol(kernel, &chptr, 10);
2384		while (*chptr == ',') {
2385		i++;
2386		kernel = chptr + 1;
2387		indexVars[i] = strtol(kernel, &chptr, 10);
2388		}
2389
2390		if (*chptr) {
2391		/* can't parse it, bail */
2392		return NULL;
2393		}
2394
2395		indexVars[i + 1] = -1;
2396
2397		i = 0;
2398		if (index) {
2399		while (i < *index) {
2400		i++;
2401		if (indexVars[i] == -1)
2402		return NULL;
2403		}
2404		}
2405
2406		entry = findEntryByIndex(config, indexVars[i]);
2407		if (!entry)
2408		return NULL;
2409
2410		line =
2411		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2412		LT_KERNEL_16, entry->lines);
2413		if (!line)
2414		return NULL;
2415
2416		if (index)
2417		*index = indexVars[i];
2418		return entry;
2419		}
2420
2421		if (!strcmp(kernel, "DEFAULT")) {
2422		if (index && *index > config->defaultImage) {
2423		entry = NULL;
2424		} else {
2425		entry = findEntryByIndex(config, config->defaultImage);
2426		if (entry && entry->skip)
2427		entry = NULL;
2428		else if (index)
2429		*index = config->defaultImage;
2430		}
2431		} else if (!strcmp(kernel, "ALL")) {
2432		if (index)
2433		i = *index;
2434		else
2435		i = 0;
2436
2437		while ((entry = findEntryByIndex(config, i))) {
2438		if (!entry->skip)
2439		break;
2440		i++;
2441		}
2442
2443		if (entry && index)
2444		*index = i;
2445		} else {
2446		if (index)
2447		i = *index;
2448		else
2449		i = 0;
2450
2451		if (!strncmp(kernel, "TITLE=", 6)) {
2452		prefix = "";
2453		checkType = LT_TITLE | LT_MENUENTRY;
2454		kernel += 6;
2455		}
2456
2457		for (entry = findEntryByIndex(config, i); entry;
2458		entry = entry->next, i++) {
2459		if (entry->skip)
2460		continue;
2461
2462		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2463		checkType, kernel, entry);
2464
2465		/* check all the lines matching checkType */
2466		for (line = entry->lines; line; line = line->next) {
2467		enum lineType_e ct = checkType;
2468		if (entry->multiboot && checkType == LT_KERNEL)
2469		ct = LT_KERNEL | LT_KERNEL_EFI |
2470		LT_MBMODULE | LT_HYPER |
2471		LT_KERNEL_16;
2472		else if (checkType & LT_KERNEL)
2473		ct = checkType | LT_KERNEL_EFI |
2474		LT_KERNEL_16;
2475		line = getLineByType(ct, line);
2476		if (!line)
2477		break; /* not found in this entry */
2478
2479		if (line && line->type != LT_MENUENTRY &&
2480		line->numElements >= 2) {
2481		if (!strcmp(line->elements[1].item +
2482		getRootSpecifier(
2483		line->elements[1].item),
2484		kernel + strlen(prefix)))
2485		break;
2486		}
2487		if (line->type == LT_MENUENTRY &&
2488		!strcmp(line->elements[1].item, kernel))
2489		break;
2490		}
2491
2492		/* make sure this entry has a kernel identifier; this skips
2493		* non-Linux boot entries (could find netbsd etc, though, which is
2494		* unfortunate)
2495		*/
2496		if (line
2497		&& getLineByType(LT_KERNEL | LT_HYPER |
2498		LT_KERNEL_EFI | LT_KERNEL_16,
2499		entry->lines))
2500		break; /* found 'im! */
2501		}
2502
2503		if (index)
2504		*index = i;
2505		}
2506
2507	return entry;	return entry;
2508	}	}
2509
2510	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2511	struct singleEntry * entry;	int *index)
2512		{
2513		struct singleEntry *entry;
2514		struct singleLine *line;
2515		int i;
2516		char *newtitle;
2517
2518		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2519		if (index && i < *index)
2520		continue;
2521		line = getLineByType(LT_TITLE, entry->lines);
2522		if (!line)
2523		line = getLineByType(LT_MENUENTRY, entry->lines);
2524		if (!line)
2525		continue;
2526		newtitle = grub2ExtractTitle(line);
2527		if (!newtitle)
2528		continue;
2529		if (!strcmp(title, newtitle))
2530		break;
2531		}
2532
2533	entry = cfg->entries;	if (!entry)
2534	while (index && entry) {	return NULL;
2535	entry = entry->next;
2536	index--;	if (index)
2537	}	*index = i;
2538		return entry;
2539		}
2540
2541		struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2542		{
2543		struct singleEntry *entry;
2544
2545		entry = cfg->entries;
2546		while (index && entry) {
2547		entry = entry->next;
2548		index--;
2549		}
2550
2551	return entry;	return entry;
2552	}	}
2553
2554	/* 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 2556  struct singleEntry * findEntryByIndex(st
2556	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2557	* 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,
2558	* bail. */	* bail. */
2559	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2560	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2561	struct singleEntry * entry, * entry2;	{
2562	int index;	struct singleEntry *entry, *entry2;
2563		int index;
2564	if (cfg->defaultImage > -1) {
2565	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2566	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2567	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2568	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2569		if (defTitle) {
2570		int index = 0;
2571		if (isnumber(defTitle)) {
2572		index = atoi(defTitle);
2573		entry = findEntryByIndex(cfg, index);
2574		} else {
2575		entry =
2576		findEntryByTitle(cfg, defTitle,
2577		&index);
2578		}
2579		if (entry
2580		&& suitableImage(entry, prefix, skipRemoved,
2581		flags)) {
2582		cfg->defaultImage = index;
2583		if (indexPtr)
2584		*indexPtr = index;
2585		return entry;
2586		}
2587		}
2588		}
2589		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2590		entry = findEntryByIndex(cfg, cfg->defaultImage);
2591		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2592		if (indexPtr)
2593		*indexPtr = cfg->defaultImage;
2594		return entry;
2595		}
2596	}	}
	}
2597
2598	index = 0;	index = 0;
2599	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2600	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2601	int j;	int j, unmodifiedIndex;
2602	for (j = 0; j < index; j++) {
2603	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2604	if (entry2->skip) index--;
2605	}	for (j = 0; j < unmodifiedIndex; j++) {
2606	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2607		if (entry2->skip)
2608		index--;
2609		}
2610		if (indexPtr)
2611		*indexPtr = index;
2612
2613	return entry;	return entry;
2614	}	}
2615
2616	index++;	index++;
2617	}	}
2618
2619	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2620		_("grubby fatal error: unable to find a suitable template\n"));
2621
2622	return NULL;	return NULL;
2623	}	}
2624
2625	char * findBootPrefix(void) {	char *findBootPrefix(void)
2626	struct stat sb, sb2;	{
2627		struct stat sb, sb2;
2628
2629	stat("/", &sb);	stat("/", &sb);
2630	#ifdef __ia64__	#ifdef __ia64__
2631	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2632	#else	#else
2633	stat("/boot", &sb2);	stat("/boot", &sb2);
2634	#endif	#endif
2635
2636	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2637	return strdup("");	return strdup("");
2638
2639	#ifdef __ia64__	#ifdef __ia64__
2640	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2641	#else	#else
2642	return strdup("/boot");	return strdup("/boot");
2643	#endif	#endif
2644	}	}
2645
2646	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2647	const char * prefix) {	const char *prefix)
2648	struct singleEntry * entry;	{
2649		struct singleEntry *entry;
2650	if (!image) return;
2651		if (!image)
2652	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	return;
2653	entry->skip = 1;
2654	}	/* check and see if we're removing the default image */
2655		if (isdigit(*image)) {
2656	void setDefaultImage(struct grubConfig * config, int hasNew,	entry = findEntryByPath(cfg, image, prefix, NULL);
2657	const char * defaultKernelPath, int newIsDefault,	if (entry)
2658	const char * prefix, int flags) {	entry->skip = 1;
2659	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;
2660	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	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;
2661
2662	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2663	/* we can preserve the default */	entry->skip = 1;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2664	}	}
2665
2666	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2667	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2668	int j;	const char *prefix, int flags,
2669		int newDefaultBootEntryIndex, int newBootEntryIndex)
2670	if (config->fallbackImage == -1) return;	{
2671		struct singleEntry *bootEntry, *newDefault;
2672	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2673	if (!entry || entry->skip) {
2674	config->fallbackImage = -1;	/* initialize */
2675	return;	currentLookupIndex = FIRST_ENTRY_INDEX;
2676	}
2677		/* handle the two cases where the user explictly picks the default
2678		* boot entry index as it would exist post-modification */
2679
2680		/* Case 1: user chose to make the latest boot entry the default */
2681		if (newBootEntryIsDefault) {
2682		config->defaultImage = newBootEntryIndex;
2683		return;
2684		}
2685
2686		/* Case 2: user picked an arbitrary index as the default boot entry */
2687		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2688		indexToVerify = newDefaultBootEntryIndex;
2689
2690		/* user chose to make latest boot entry the default */
2691		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2692		config->defaultImage = newBootEntryIndex;
2693		return;
2694		}
2695
2696	if (hasNew)	/* the user picks the default index based on the
2697	config->fallbackImage++;	* order of the bootloader configuration after
2698		* modification; ensure we are checking for the
2699	/* count the number of entries erased before this one */	* existence of the correct entry */
2700	for (j = 0; j < config->fallbackImage; j++) {	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2701	entry2 = findEntryByIndex(config, j);	if (!config->isModified)
2702	if (entry2->skip) config->fallbackImage--;	indexToVerify--;
2703	}	}
	}
2704
2705	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* verify the user selected index will exist */
2706	struct singleLine * line;	if (findEntryByIndex(config, indexToVerify)) {
2707	char * root = NULL;	config->defaultImage = newDefaultBootEntryIndex;
2708	int i;	} else {
2709		config->defaultImage = NO_DEFAULT_ENTRY;
2710	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);
	}
2711
2712	i++;	return;
2713	}	}
	printf("\"\n");
	} else {
	line = entry->lines;
	while (line && line->type != LT_KERNELARGS) line=line->next;
	if (line) {
	char * s;
2714
2715	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;
2716
2717	printf("%s%s", s, line->elements[i].indent);	/* check validity of existing default or first-entry-found
2718		selection */
2719		if (defaultKernelPath) {
2720		/* we must initialize this */
2721		firstKernelEntryIndex = 0;
2722		/* user requested first-entry-found */
2723		if (!findEntryByPath(config, defaultKernelPath,
2724		prefix, &firstKernelEntryIndex)) {
2725		/* don't change default if can't find match */
2726		config->defaultImage = NO_DEFAULT_ENTRY;
2727		return;
2728	}	}
2729
2730	i++;	config->defaultImage = firstKernelEntryIndex;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
	}
	}
2731
2732	if (!root) {	/* this is where we start looking for decrement later */
2733	line = entry->lines;	currentLookupIndex = config->defaultImage;
	while (line && line->type != LT_ROOT) line = line->next;
2734
2735	if (line && line->numElements >= 2)	if (isAddingBootEntry && !config->isModified &&
2736	root=line->elements[1].item;	(newBootEntryIndex < config->defaultImage)) {
2737	}	/* increment because new entry added before default */
2738		config->defaultImage++;
2739		}
2740		} else {
2741		/* check to see if the default is stored in the environment */
2742		if (config->defaultImage < FIRST_ENTRY_INDEX) {
2743		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2744		{
2745		if (config->cfi->defaultIsSaved) {
2746		if (config->cfi->getEnv) {
2747		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2748
2749		if (defaultTitle) {
2750		if (isnumber(defaultTitle)) {
2751		currentLookupIndex = atoi(defaultTitle);
2752		} else {
2753		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2754		}
2755		/* set the default Image to an actual index */
2756		config->defaultImage = currentLookupIndex;
2757		}
2758		}
2759		}
2760		}
2761		} else {
2762		/* use pre-existing default entry from the file*/
2763		currentLookupIndex = config->defaultImage;
2764		}
2765
2766	if (root) {	if (isAddingBootEntry
2767	char * s = alloca(strlen(root) + 1);	&& (newBootEntryIndex <= config->defaultImage)) {
2768		config->defaultImage++;
2769	strcpy(s, root);
2770	if (s[strlen(s) - 1] == '"')	if (config->isModified) {
2771	s[strlen(s) - 1] = '\0';	currentLookupIndex++;
2772	/* make sure the root doesn't have a trailing " */	}
2773	printf("root=%s\n", s);	}
2774	}	}
2775
2776	line = entry->lines;	/* sanity check - is this entry index valid? */
2777	while (line && line->type != LT_INITRD) line = line->next;	bootEntry = findEntryByIndex(config, currentLookupIndex);
2778
2779	if (line && line->numElements >= 2) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2780	printf("initrd=%s", prefix);	/* entry is to be skipped or is invalid */
2781	for (i = 1; i < line->numElements; i++)	if (isAddingBootEntry) {
2782	printf("%s%s", line->elements[i].item, line->elements[i].indent);	config->defaultImage = newBootEntryIndex;
2783	printf("\n");	return;
2784	}	}
2785	}	newDefault =
2786		findTemplate(config, prefix, &config->defaultImage, 1,
2787		flags);
2788		if (!newDefault) {
2789		config->defaultImage = NO_DEFAULT_ENTRY;
2790		}
2791
2792	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	return;
2793	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);
	}
2794
2795	fclose(in);	currentLookupIndex--;
2796
2797	return 0;	/* decrement index by the total number of entries deleted */
	}
2798
2799	void dumpSysconfigGrub(void) {	for (indexToVerify = currentLookupIndex;
2800	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);
	}
	}
2801
2802	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;
	}
2803
2804	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (bootEntry && bootEntry->skip) {
2805	be a better way */	config->defaultImage--;
2806	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);
2807	}	}
2808		}
2809
2810	line = config->theLines;	void setFallbackImage(struct grubConfig *config, int hasNew)
2811	while (line && line->type != LT_LBA) line = line->next;	{
2812	if (line) printf("lba\n");	struct singleEntry *entry, *entry2;
2813	}	int j;
2814
2815	displayEntry(entry, prefix, i);	if (config->fallbackImage == -1)
2816		return;
2817
2818		entry = findEntryByIndex(config, config->fallbackImage);
2819		if (!entry || entry->skip) {
2820		config->fallbackImage = -1;
2821		return;
2822		}
2823
2824	i++;	if (hasNew)
2825	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	config->fallbackImage++;
	displayEntry(entry, prefix, i);
	i++;
	}
2826
2827	return 0;	/* count the number of entries erased before this one */
2828		for (j = 0; j < config->fallbackImage; j++) {
2829		entry2 = findEntryByIndex(config, j);
2830		if (entry2->skip)
2831		config->fallbackImage--;
2832		}
2833	}	}
2834
2835	/* val may be NULL */	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2836	struct singleLine *  addLine(struct singleEntry * entry,	{
2837	struct configFileInfo * cfi,	struct singleLine *line;
2838	enum lineType_e type, const char * defaultIndent,	char *root = NULL;
2839	char * val) {	int i;
2840	struct singleLine * line, * prev;	int j;
2841	int i;
2842		printf("index=%d\n", index);
2843	for (i = 0; cfi->keywords[i].key; i++)
2844	if (cfi->keywords[i].type == type) break;	line =
2845	if (type != LT_TITLE || !cfi->titleBracketed)	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2846	if (!cfi->keywords[i].key) abort();	entry->lines);
2847		if (!line) {
2848	/* The last non-empty line gives us the indention to us and the line	printf("non linux entry\n");
2849	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;
2850	}	}
	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;
2851
2852	if (prev == entry->lines)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2853	line->indent = strdup(defaultIndent);	printf("kernel=%s\n", line->elements[1].item);
2854	else	else
2855	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("");
	}
2856
2857	return line;	if (line->numElements >= 3) {
2858	}	printf("args=\"");
2859		i = 2;
2860	void removeLine(struct singleEntry * entry, struct singleLine * line) {	while (i < line->numElements) {
2861	struct singleLine * prev;	if (!strncmp(line->elements[i].item, "root=", 5)) {
2862	int i;	root = line->elements[i].item + 5;
2863		} else {
2864		printf("%s%s", line->elements[i].item,
2865		line->elements[i].indent);
2866		}
2867
2868	for (i = 0; i < line->numElements; i++) {	i++;
2869	free(line->elements[i].item);	}
2870	free(line->elements[i].indent);	printf("\"\n");
2871	}	} else {
2872	free(line->elements);	line = getLineByType(LT_KERNELARGS, entry->lines);
2873	free(line->indent);	if (line) {
2874		char *s;
2875
2876		printf("args=\"");
2877		i = 1;
2878		while (i < line->numElements) {
2879		if (!strncmp
2880		(line->elements[i].item, "root=", 5)) {
2881		root = line->elements[i].item + 5;
2882		} else {
2883		s = line->elements[i].item;
2884
2885		printf("%s%s", s,
2886		line->elements[i].indent);
2887		}
2888
2889	if (line == entry->lines) {	i++;
2890	entry->lines = line->next;	}
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2891
2892	free(line);	s = line->elements[i - 1].indent;
2893	}	printf("\"\n");
2894		}
2895		}
2896
2897	int argMatch(const char * one, const char * two) {	if (!root) {
2898	char * first, * second;	line = getLineByType(LT_ROOT, entry->lines);
2899	char * chptr;	if (line && line->numElements >= 2)
2900		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;
2901	}	}
	}
2902
2903	if (!removeArgs) {	if (root) {
2904	oldArgs = malloc(sizeof(*oldArgs));	char *s = alloca(strlen(root) + 1);
2905	*oldArgs = NULL;
2906	} else {	strcpy(s, root);
2907	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	if (s[strlen(s) - 1] == '"')
2908	fprintf(stderr,	s[strlen(s) - 1] = '\0';
2909	_("grubby: error separating arguments '%s'\n"), removeArgs);	/* make sure the root doesn't have a trailing " */
2910	free(newArgs);	printf("root=%s\n", s);
	return 1;
2911	}	}
	}
2912
2913	for (i = 0; cfg->cfi->keywords[i].key; i++)	line =
2914	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2915		entry->lines);
2916
2917	if (cfg->cfi->keywords[i].key)	if (line && line->numElements >= 2) {
2918	useKernelArgs = 1;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2919		printf("initrd=");
2920		else
2921		printf("initrd=%s", prefix);
2922
2923	for (i = 0; cfg->cfi->keywords[i].key; i++)	for (i = 1; i < line->numElements; i++)
2924	if (cfg->cfi->keywords[i].type == LT_ROOT) break;	printf("%s%s", line->elements[i].item,
2925		line->elements[i].indent);
2926		printf("\n");
2927		}
2928
2929	if (cfg->cfi->keywords[i].key)	line = getLineByType(LT_TITLE, entry->lines);
2930	useRoot = 1;	if (line) {
2931		char *entryTitle;
2932	k = 0;	/* if we can extractTitle, then it's a zipl config and
2933	for (arg = newArgs; *arg; arg++)	* if not then we go ahead with what's existed prior */
2934	k++;	entryTitle = extractTitle(config, line);
2935	usedArgs = calloc(k, sizeof(int));	if (!entryTitle) {
2936		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;
2937	}	}
2938	}	printf("title=%s\n", entryTitle);
2939	chptr = strchr(*arg, '=');	} else {
2940		char *title;
2941	if (i < line->numElements) {	line = getLineByType(LT_MENUENTRY, entry->lines);
2942	/* replace */	if (line) {
2943	free(line->elements[i].item);	title = grub2ExtractTitle(line);
2944	line->elements[i].item = strdup(*arg);	if (title)
2945	} 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("");
2946	}	}
2947		}
2948
2949	line->numElements++;	for (j = 0, line = entry->lines; line; line = line->next) {
2950		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2951	/* if we updated a root= here even though there is a	if (!strncmp
2952	LT_ROOT available we need to remove the LT_ROOT entry	(prefix, line->elements[1].item, strlen(prefix)))
2953	(this will happen if we switch from a device to a label) */	printf("mbmodule%d=", j);
2954	if (useRoot && !strncmp(*arg, "root=", 5)) {	else
2955	rootLine = entry->lines;	printf("mbmodule%d=%s", j, prefix);
2956	while (rootLine && rootLine->type != LT_ROOT)
2957	rootLine = rootLine->next;	for (i = 1; i < line->numElements; i++)
2958	if (rootLine) {	printf("%s%s", line->elements[i].item,
2959	removeLine(entry, rootLine);	line->elements[i].indent);
2960	}	printf("\n");
2961	}	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;
2962	}	}
	free(line->elements[i].item);
	for (j = i + 1; j < line->numElements; j++)
	line->elements[j - 1] = line->elements[j];
	line->numElements--;
	}
2963	}	}
2964		}
2965
2966	if (line->numElements == 1) {	int isSuseSystem(void)
2967	/* don't need the line at all (note it has to be a	{
2968	LT_KERNELARGS for this to happen */	const char *path;
2969	removeLine(entry, line);	const static char default_path[] = "/etc/SuSE-release";
	}
	}
2970
2971	free(usedArgs);	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2972	free(newArgs);	path = default_path;
	free(oldArgs);
2973
2974	return 0;	if (!access(path, R_OK))
2975		return 1;
2976		return 0;
2977	}	}
2978
2979	int updateImage(struct grubConfig * cfg, const char * image,	int isSuseGrubConf(const char *path)
2980	const char * prefix, const char * addArgs,	{
2981	const char * removeArgs,	FILE *grubConf;
2982	const char * addMBArgs, const char * removeMBArgs) {	char *line = NULL;
2983	int rc = 0;	size_t len = 0, res = 0;
2984
2985	if (!image) return rc;	grubConf = fopen(path, "r");
2986		if (!grubConf) {
2987	/* update the main args first... */	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2988	if (addArgs || removeArgs)	path);
2989	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	return 0;
2990	if (rc) return rc;	}
2991
2992	/* and now any multiboot args */	while ((res = getline(&line, &len, grubConf)) != -1) {
2993	if (addMBArgs || removeMBArgs)	if (!strncmp(line, "setup", 5)) {
2994	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	fclose(grubConf);
2995	return rc;	free(line);
2996	}	return 1;
2997		}
2998	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;
	}
2999
3000	if (read(fd, bootSect, 512) != 512) {	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
3001	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	path);
	device, strerror(errno));
	return 1;
	}
	close(fd);
3002
3003	/* first three bytes should match, a jmp short should be in there */	fclose(grubConf);
3004	if (memcmp(boot, bootSect, 3))	free(line);
3005	return 0;	return 0;
3006		}
3007
3008	if (boot[1] == 0xeb) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
3009	offset = boot[2] + 2;	{
3010	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	FILE *grubConf;
3011	offset = (boot[3] << 8) + boot[2] + 2;	char *line = NULL;
3012	} 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;
	}
3013
3014	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (!path)
3015	return 0;	return 1;
3016		if (!lbaPtr)
3017		return 1;
3018
3019	return 2;	grubConf = fopen(path, "r");
3020	}	if (!grubConf)
3021		return 1;
3022
3023	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	while ((res = getline(&line, &len, grubConf)) != -1) {
3024	int fd;	if (line[res - 1] == '\n')
3025	char buf[65536];	line[res - 1] = '\0';
3026	char * end;	else if (len > res)
3027	char * chptr;	line[res] = '\0';
3028	char * chptr2;	else {
3029	int rc;	line = realloc(line, res + 1);
3030		line[res] = '\0';
3031		}
3032
3033	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (!strncmp(line, "setup", 5)) {
3034	*raw* devices listed in there */	if (strstr(line, "--force-lba")) {
3035		*lbaPtr = 1;
3036		} else {
3037		*lbaPtr = 0;
3038		}
3039		dbgPrintf("lba: %i\n", *lbaPtr);
3040		break;
3041		}
3042		}
3043
3044	if (!strncmp(mdDev, "/dev/", 5))	free(line);
3045	mdDev += 5;	fclose(grubConf);
3046		return 0;
3047		}
3048
3049	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
3050	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	{
3051	strerror(errno));	FILE *grubConf;
3052	return 2;	char *line = NULL;
3053	}	size_t res = 0, len = 0;
3054		char *lastParamPtr = NULL;
3055		char *secLastParamPtr = NULL;
3056		char installDeviceNumber = '\0';
3057		char *bounds = NULL;
3058
3059	rc = read(fd, buf, sizeof(buf) - 1);	if (!path)
3060	if (rc < 0 || rc == (sizeof(buf) - 1)) {	return 1;
3061	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	if (!devicePtr)
3062	strerror(errno));	return 1;
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3063
3064	chptr = buf;	grubConf = fopen(path, "r");
3065	while (*chptr) {	if (!grubConf)
3066	end = strchr(chptr, '\n');	return 1;
	if (!end) break;
	*end = '\0';
3067
3068	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	while ((res = getline(&line, &len, grubConf)) != -1) {
3069	chptr[strlen(mdDev)] == ' ') {	if (strncmp(line, "setup", 5))
3070		continue;
3071
3072		if (line[res - 1] == '\n')
3073		line[res - 1] = '\0';
3074		else if (len > res)
3075		line[res] = '\0';
3076		else {
3077		line = realloc(line, res + 1);
3078		line[res] = '\0';
3079		}
3080
3081	/* 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++;
	}
3082
3083	/*  we're good to go */	/* Last parameter in grub may be an optional IMAGE_DEVICE */
3084	return 2;	while (!isspace(*lastParamPtr))
3085	}	lastParamPtr--;
3086		lastParamPtr++;
3087
3088		secLastParamPtr = lastParamPtr - 2;
3089		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
3090
3091		if (lastParamPtr + 3 > bounds) {
3092		dbgPrintf("lastParamPtr going over boundary");
3093		fclose(grubConf);
3094		free(line);
3095		return 1;
3096		}
3097		if (!strncmp(lastParamPtr, "(hd", 3))
3098		lastParamPtr += 3;
3099		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
3100
3101		/*
3102		* Second last parameter will decide wether last parameter is
3103		* an IMAGE_DEVICE or INSTALL_DEVICE
3104		*/
3105		while (!isspace(*secLastParamPtr))
3106		secLastParamPtr--;
3107		secLastParamPtr++;
3108
3109		if (secLastParamPtr + 3 > bounds) {
3110		dbgPrintf("secLastParamPtr going over boundary");
3111		fclose(grubConf);
3112		free(line);
3113		return 1;
3114		}
3115		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
3116		if (!strncmp(secLastParamPtr, "(hd", 3)) {
3117		secLastParamPtr += 3;
3118		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
3119		installDeviceNumber = *secLastParamPtr;
3120		} else {
3121		installDeviceNumber = *lastParamPtr;
3122		}
3123
3124	chptr = end + 1;	*devicePtr = malloc(6);
3125	}	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3126		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3127		fclose(grubConf);
3128		free(line);
3129		return 0;
3130		}
3131
3132	fprintf(stderr,	free(line);
3133	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	fclose(grubConf);
3134	mdDev);	return 1;
	return 0;
3135	}	}
3136
3137	int checkForLilo(struct grubConfig * config) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3138	int fd;	{
3139	unsigned char boot[512];	FILE *deviceMap;
3140	struct singleLine * line;	char *line = NULL;
3141		size_t res = 0, len = 0;
3142	for (line = config->theLines; line; line = line->next)	char *devicePtr;
3143	if (line->type == LT_BOOT) break;	char *bounds = NULL;
3144		const char *path;
3145	if (!line) {	const static char default_path[] = "/boot/grub/device.map";
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3146
3147	if (line->numElements != 2) return 1;	if (!device)
3148		return 1;
3149		if (!bootPtr)
3150		return 1;
3151
3152	fd = open("/boot/boot.b", O_RDONLY);	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3153	if (fd < 0) {	path = default_path;
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	"/boot/boot.b", strerror(errno));
	return 1;
	}
3154
3155	if (read(fd, boot, 512) != 512) {	dbgPrintf("opening grub device.map file from: %s\n", path);
3156	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	deviceMap = fopen(path, "r");
3157	"/boot/boot.b", strerror(errno));	if (!deviceMap)
3158	return 1;	return 1;
	}
	close(fd);
3159
3160	if (!strncmp("/dev/md", line->elements[1].item, 7))	while ((res = getline(&line, &len, deviceMap)) != -1) {
3161	return checkLiloOnRaid(line->elements[1].item, boot);	if (!strncmp(line, "#", 1))
3162		continue;
3163
3164		if (line[res - 1] == '\n')
3165		line[res - 1] = '\0';
3166		else if (len > res)
3167		line[res] = '\0';
3168		else {
3169		line = realloc(line, res + 1);
3170		line[res] = '\0';
3171		}
3172
3173	return checkDeviceBootloader(line->elements[1].item, boot);	devicePtr = line;
3174	}	bounds = line + res;
3175
3176	int checkForGrub(struct grubConfig * config) {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3177	int fd;	devicePtr++;
3178	unsigned char bootSect[512];	dbgPrintf("device: %s\n", devicePtr);
3179	char * boot;
3180		if (!strncmp(devicePtr, device, strlen(device))) {
3181		devicePtr += strlen(device);
3182		while (isspace(*devicePtr)
3183		&& ((devicePtr + 1) <= bounds))
3184		devicePtr++;
3185
3186	if (parseSysconfigGrub(NULL, &boot))	*bootPtr = strdup(devicePtr);
3187	return 0;	break;
3188		}
3189		}
3190
3191	/* assume grub is not installed -- not an error condition */	free(line);
3192	if (!boot)	fclose(deviceMap);
3193	return 0;	return 0;
3194		}
3195
3196	fd = open("/boot/grub/stage1", O_RDONLY);	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3197	if (fd < 0)	{
3198	/* this doesn't exist if grub hasn't been installed */	char *grubDevice;
	return 0;
3199
3200	if (read(fd, bootSect, 512) != 512) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3201	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	dbgPrintf("error looking for grub installation device\n");
3202	"/boot/grub/stage1", strerror(errno));	else
3203	return 1;	dbgPrintf("grubby installation device: %s\n", grubDevice);
3204	}
3205	close(fd);	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3206		dbgPrintf("error looking for grub boot device\n");
3207		else
3208		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3209
3210	return checkDeviceBootloader(boot, bootSect);	free(grubDevice);
3211		return 0;
3212	}	}
3213
3214	static char * getRootSpecifier(char * str) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3215	char * idx, * rootspec = NULL;	{
3216		/*
3217		* This SuSE grub configuration file at this location is not your
3218		* average grub configuration file, but instead the grub commands
3219		* used to setup grub on that system.
3220		*/
3221		const char *path;
3222		const static char default_path[] = "/etc/grub.conf";
3223
3224	if (*str == '(') {	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3225	idx = rootspec = strdup(str);	path = default_path;
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
	}
3226
3227	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	if (!isSuseGrubConf(path))
3228	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;
3229
3230	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (lbaPtr) {
3231	while (findEntryByPath(config, buf, NULL, NULL)) {	*lbaPtr = 0;
3232	sprintf(numBuf, "%d", i++);	if (suseGrubConfGetLba(path, lbaPtr))
3233	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	return 1;
3234	}	}
3235
3236	newKernelTitle = buf + 6;	if (bootPtr) {
3237	}	*bootPtr = NULL;
3238		suseGrubConfGetBoot(path, bootPtr);
3239		}
3240
3241	new = malloc(sizeof(*new));	return 0;
3242	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;
	}
3243
3244	if (template) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3245	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	{
3246	/* remember the indention level; we may need it for new lines */	FILE *in;
3247	if (tmplLine->numElements)	char buf[1024];
3248	indent = tmplLine->indent;	char *chptr;
3249		char *start;
3250	/* 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;
	}
3251
3252	switch (config->cfi->keywords[i].type) {	in = fopen("/etc/sysconfig/grub", "r");
3253	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	if (!in)
3254	chptr = newKernelPath + strlen(prefix);	return 1;
	type = LT_KERNEL; break;
	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;
	type = LT_TITLE; break;
	default:
	/* zipl strikes again */
	if (config->cfi->titleBracketed) {
	needs &= ~KERNEL_TITLE;
	chptr = newKernelTitle;
	type = LT_TITLE;
	break;
	} else {
	abort();
	}
	}
3255
3256	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	if (lbaPtr)
3257	new->lines = newLine;	*lbaPtr = 0;
3258	}	if (bootPtr)
3259		*bootPtr = NULL;
3260	if (new->multiboot) {
3261	if (needs & KERNEL_MB)	while (fgets(buf, sizeof(buf), in)) {
3262	newLine = addLine(new, config->cfi, LT_KERNEL,	start = buf;
3263	config->secondaryIndent,	while (isspace(*start))
3264	newMBKernel + strlen(prefix));	start++;
3265	if (needs & KERNEL_KERNEL)	if (*start == '#')
3266	newLine = addLine(new, config->cfi, LT_MBMODULE,	continue;
3267	config->secondaryIndent,
3268	newKernelPath + strlen(prefix));	chptr = strchr(start, '=');
3269	/* don't need to check for title as it's guaranteed to have been	if (!chptr)
3270	* done as we only do multiboot with grub which uses title as	continue;
3271	* a separator */	chptr--;
3272	if (needs & KERNEL_INITRD && newKernelInitrd)	while (*chptr && isspace(*chptr))
3273	newLine = addLine(new, config->cfi, LT_MBMODULE,	chptr--;
3274	config->secondaryIndent,	chptr++;
3275	newKernelInitrd + strlen(prefix));	*chptr = '\0';
3276	} else {
3277	if (needs & KERNEL_KERNEL)	param = chptr + 1;
3278	newLine = addLine(new, config->cfi, LT_KERNEL,	while (*param && isspace(*param))
3279	config->secondaryIndent,	param++;
3280	newKernelPath + strlen(prefix));	if (*param == '=') {
3281	if (needs & KERNEL_TITLE)	param++;
3282	newLine = addLine(new, config->cfi, LT_TITLE,	while (*param && isspace(*param))
3283	config->secondaryIndent,	param++;
3284	newKernelTitle);	}
	if (needs & KERNEL_INITRD && newKernelInitrd)
	newLine = addLine(new, config->cfi, LT_INITRD,
	config->secondaryIndent,
	newKernelInitrd + strlen(prefix));
	}
3285
3286	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	chptr = param;
3287	newMBKernelArgs, NULL)) return 1;	while (*chptr && !isspace(*chptr))
3288		chptr++;
3289		*chptr = '\0';
3290
3291		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3292		*lbaPtr = 1;
3293		else if (!strcmp(start, "boot") && bootPtr)
3294		*bootPtr = strdup(param);
3295		}
3296
3297	return 0;	fclose(in);
	}
3298
3299	int main(int argc, const char ** argv) {	return 0;
3300	poptContext optCon;	}
3301	char * grubConfig = NULL;
3302	char * outputFile = NULL;	void dumpSysconfigGrub(void)
3303	int arg = 0;	{
3304	int flags = 0;	char *boot = NULL;
3305	int badImageOkay = 0;	int lba;
3306	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
3307	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	if (isSuseSystem()) {
3308	int bootloaderProbe = 0;	if (parseSuseGrubConf(&lba, &boot)) {
3309	char * updateKernelPath = NULL;	free(boot);
3310	char * newKernelPath = NULL;	return;
3311	char * removeKernelPath = NULL;	}
3312	char * newKernelArgs = NULL;	} else {
3313	char * newKernelInitrd = NULL;	if (parseSysconfigGrub(&lba, &boot)) {
3314	char * newKernelTitle = NULL;	free(boot);
3315	char * newKernelVersion = NULL;	return;
3316	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;
3317	}	}
	}
3318
3319	if (arg < -1) {	if (lba)
3320	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	printf("lba\n");
3321	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	if (boot) {
3322	poptStrerror(arg));	printf("boot=%s\n", boot);
3323	return 1;	free(boot);
3324	}	}
3325		}
3326
3327		int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3328		{
3329		int i = 0;
3330		struct singleEntry *entry;
3331		struct singleLine *line;
3332
3333		entry = findEntryByPath(config, kernel, prefix, &i);
3334		if (!entry) {
3335		fprintf(stderr, _("grubby: kernel not found\n"));
3336		return 1;
3337		}
3338
3339		/* this is a horrible hack to support /etc/sysconfig/grub; there must
3340		be a better way */
3341		if (config->cfi == &grubConfigType) {
3342		dumpSysconfigGrub();
3343		} else {
3344		line = getLineByType(LT_BOOT, config->theLines);
3345		if (line && line->numElements >= 1) {
3346		printf("boot=%s\n", line->elements[1].item);
3347		}
3348
3349		line = getLineByType(LT_LBA, config->theLines);
3350		if (line)
3351		printf("lba\n");
3352		}
3353
3354		displayEntry(config, entry, prefix, i);
3355
3356		i++;
3357		while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3358		displayEntry(config, entry, prefix, i);
3359		i++;
3360		}
3361
3362		return 0;
3363		}
3364
3365		struct singleLine *addLineTmpl(struct singleEntry *entry,
3366		struct singleLine *tmplLine,
3367		struct singleLine *prevLine,
3368		const char *val, struct configFileInfo *cfi)
3369		{
3370		struct singleLine *newLine = lineDup(tmplLine);
3371
3372		if (isEfi && cfi == &grub2ConfigType) {
3373		enum lineType_e old = newLine->type;
3374		newLine->type = preferredLineType(newLine->type, cfi);
3375		if (old != newLine->type)
3376		newLine->elements[0].item =
3377		getKeyByType(newLine->type, cfi);
3378		}
3379
3380		if (val) {
3381		/* override the inherited value with our own.
3382		* This is a little weak because it only applies to elements[1]
3383		*/
3384		if (newLine->numElements > 1)
3385		removeElement(newLine, 1);
3386		insertElement(newLine, val, 1, cfi);
3387
3388		/* but try to keep the rootspec from the template... sigh */
3389		if (tmplLine->
3390		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3391		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3392		LT_INITRD_16)) {
3393		const char *prfx = tmplLine->elements[1].item;
3394		size_t rs = getRootSpecifier(prfx);
3395		if (isinitrd(tmplLine->type)) {
3396		for (struct singleLine *l = entry->lines;
3397		rs == 0 && l; l = l->next) {
3398		if (iskernel(l->type)) {
3399		prfx = l->elements[1].item;
3400		rs = getRootSpecifier(prfx);
3401		break;
3402		}
3403		}
3404		}
3405		if (rs > 0) {
3406		free(newLine->elements[1].item);
3407		newLine->elements[1].item = sdupprintf(
3408		"%.*s%s", (int) rs, prfx, val);
3409		}
3410		}
3411		}
3412
3413		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3414		newLine->elements[0].item : "");
3415
3416		if (!entry->lines) {
3417		/* first one on the list */
3418		entry->lines = newLine;
3419		} else if (prevLine) {
3420		/* add after prevLine */
3421		newLine->next = prevLine->next;
3422		prevLine->next = newLine;
3423		}
3424
3425		return newLine;
3426		}
3427
3428		/* val may be NULL */
3429		struct singleLine *addLine(struct singleEntry *entry,
3430		struct configFileInfo *cfi,
3431		enum lineType_e type, char *defaultIndent,
3432		const char *val)
3433		{
3434		struct singleLine *line, *prev;
3435		struct keywordTypes *kw;
3436		struct singleLine tmpl;
3437
3438		/* NB: This function shouldn't allocate items on the heap, rather on
3439		* the stack since it calls addLineTmpl which will make copies.
3440		*/
3441		if (type == LT_TITLE && cfi->titleBracketed) {
3442		/* we're doing a bracketed title (zipl) */
3443		tmpl.type = type;
3444		tmpl.numElements = 1;
3445		tmpl.elements = alloca(sizeof(*tmpl.elements));
3446		tmpl.elements[0].item = alloca(strlen(val) + 3);
3447		sprintf(tmpl.elements[0].item, "[%s]", val);
3448		tmpl.elements[0].indent = "";
3449		val = NULL;
3450		} else if (type == LT_MENUENTRY) {
3451		char *lineend = "--class gnu-linux --class gnu --class os {";
3452		if (!val) {
3453		fprintf(stderr,
3454		"Line type LT_MENUENTRY requires a value\n");
3455		abort();
3456		}
3457		kw = getKeywordByType(type, cfi);
3458		if (!kw) {
3459		fprintf(stderr,
3460		"Looking up keyword for unknown type %d\n",
3461		type);
3462		abort();
3463		}
3464		tmpl.indent = "";
3465		tmpl.type = type;
3466		tmpl.numElements = 3;
3467		tmpl.elements =
3468		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3469		tmpl.elements[0].item = kw->key;
3470		tmpl.elements[0].indent = alloca(2);
3471		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3472		tmpl.elements[1].item = (char *)val;
3473		tmpl.elements[1].indent = alloca(2);
3474		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3475		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3476		strcpy(tmpl.elements[2].item, lineend);
3477		tmpl.elements[2].indent = "";
3478		} else {
3479		kw = getKeywordByType(type, cfi);
3480		if (!kw) {
3481		fprintf(stderr,
3482		"Looking up keyword for unknown type %d\n",
3483		type);
3484		abort();
3485		}
3486		tmpl.type = type;
3487		tmpl.numElements = val ? 2 : 1;
3488		tmpl.elements =
3489		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3490		tmpl.elements[0].item = kw->key;
3491		tmpl.elements[0].indent = alloca(2);
3492		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3493		if (val) {
3494		tmpl.elements[1].item = (char *)val;
3495		tmpl.elements[1].indent = "";
3496		}
3497		}
3498
3499		/* The last non-empty line gives us the indention to us and the line
3500		* to insert after. Note that comments are considered empty lines,
3501		* which may not be ideal? If there are no lines or we are looking at
3502		* the first line, we use defaultIndent (the first line is normally
3503		* indented differently from the rest) */
3504		for (line = entry->lines, prev = NULL; line; line = line->next) {
3505		if (line->numElements)
3506		prev = line;
3507		/* fall back on the last line if prev isn't otherwise set */
3508		if (!line->next && !prev)
3509		prev = line;
3510		}
3511
3512		struct singleLine *menuEntry;
3513		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3514		if (tmpl.type == LT_ENTRY_END) {
3515		if (menuEntry)
3516		tmpl.indent = menuEntry->indent;
3517		else
3518		tmpl.indent = defaultIndent ? : "";
3519		} else if (tmpl.type != LT_MENUENTRY) {
3520		if (menuEntry)
3521		tmpl.indent = "\t";
3522		else if (prev == entry->lines)
3523		tmpl.indent = defaultIndent ? : "";
3524		else
3525		tmpl.indent = prev->indent;
3526		}
3527
3528		return addLineTmpl(entry, &tmpl, prev, val, cfi);
3529		}
3530
3531		void removeLine(struct singleEntry *entry, struct singleLine *line)
3532		{
3533		struct singleLine *prev;
3534		int i;
3535
3536		for (i = 0; i < line->numElements; i++) {
3537		free(line->elements[i].item);
3538		free(line->elements[i].indent);
3539		}
3540		free(line->elements);
3541		free(line->indent);
3542
3543		if (line == entry->lines) {
3544		entry->lines = line->next;
3545		} else {
3546		prev = entry->lines;
3547		while (prev->next != line)
3548		prev = prev->next;
3549		prev->next = line->next;
3550		}
3551
3552		free(line);
3553		}
3554
3555		static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3556		{
3557		struct singleLine newLine = {
3558		.indent = tmplLine->indent,
3559		.type = tmplLine->type,
3560		.next = tmplLine->next,
3561		};
3562		int firstQuotedItem = -1;
3563		int quoteLen = 0;
3564		int j;
3565		int element = 0;
3566		char *c;
3567
3568		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3569		strcpy(c, tmplLine->elements[0].item);
3570		insertElement(&newLine, c, element++, cfi);
3571		free(c);
3572		c = NULL;
3573
3574		for (j = 1; j < tmplLine->numElements; j++) {
3575		if (firstQuotedItem == -1) {
3576		quoteLen += strlen(tmplLine->elements[j].item);
3577
3578		if (isquote(tmplLine->elements[j].item[0])) {
3579		firstQuotedItem = j;
3580		quoteLen +=
3581		strlen(tmplLine->elements[j].indent);
3582		} else {
3583		c = malloc(quoteLen + 1);
3584		strcpy(c, tmplLine->elements[j].item);
3585		insertElement(&newLine, c, element++, cfi);
3586		free(c);
3587		quoteLen = 0;
3588		}
3589		} else {
3590		int itemlen = strlen(tmplLine->elements[j].item);
3591		quoteLen += itemlen;
3592		quoteLen += strlen(tmplLine->elements[j].indent);
3593
3594		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3595		c = malloc(quoteLen + 1);
3596		c[0] = '\0';
3597		for (int i = firstQuotedItem; i < j + 1; i++) {
3598		strcat(c, tmplLine->elements[i].item);
3599		strcat(c, tmplLine->elements[i].indent);
3600		}
3601		insertElement(&newLine, c, element++, cfi);
3602		free(c);
3603
3604		firstQuotedItem = -1;
3605		quoteLen = 0;
3606		}
3607		}
3608		}
3609		while (tmplLine->numElements)
3610		removeElement(tmplLine, 0);
3611		if (tmplLine->elements)
3612		free(tmplLine->elements);
3613
3614		tmplLine->numElements = newLine.numElements;
3615		tmplLine->elements = newLine.elements;
3616		}
3617
3618		static void insertElement(struct singleLine *line,
3619		const char *item, int insertHere,
3620		struct configFileInfo *cfi)
3621		{
3622		struct keywordTypes *kw;
3623		char indent[2] = "";
3624
3625		/* sanity check */
3626		if (insertHere > line->numElements) {
3627		dbgPrintf
3628		("insertElement() adjusting insertHere from %d to %d\n",
3629		insertHere, line->numElements);
3630		insertHere = line->numElements;
3631		}
3632
3633		line->elements = realloc(line->elements, (line->numElements + 1) *
3634		sizeof(*line->elements));
3635		memmove(&line->elements[insertHere + 1],
3636		&line->elements[insertHere],
3637		(line->numElements - insertHere) * sizeof(*line->elements));
3638		line->elements[insertHere].item = strdup(item);
3639
3640		kw = getKeywordByType(line->type, cfi);
3641
3642		if (line->numElements == 0) {
3643		indent[0] = '\0';
3644		} else if (insertHere == 0) {
3645		indent[0] = kw->nextChar;
3646		} else if (kw->separatorChar != '\0') {
3647		indent[0] = kw->separatorChar;
3648		} else {
3649		indent[0] = ' ';
3650		}
3651
3652		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3653		/* move the end-of-line forward */
3654		line->elements[insertHere].indent =
3655		line->elements[insertHere - 1].indent;
3656		line->elements[insertHere - 1].indent = strdup(indent);
3657		} else {
3658		line->elements[insertHere].indent = strdup(indent);
3659		}
3660
3661		line->numElements++;
3662
3663		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3664		line->elements[0].item,
3665		line->elements[insertHere].item,
3666		line->elements[insertHere].indent, insertHere);
3667		}
3668
3669		static void removeElement(struct singleLine *line, int removeHere)
3670		{
3671		int i;
3672
3673		/* sanity check */
3674		if (removeHere >= line->numElements)
3675		return;
3676
3677		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3678		removeHere, line->elements[removeHere].item);
3679
3680		free(line->elements[removeHere].item);
3681
3682		if (removeHere > 1) {
3683		/* previous argument gets this argument's post-indentation */
3684		free(line->elements[removeHere - 1].indent);
3685		line->elements[removeHere - 1].indent =
3686		line->elements[removeHere].indent;
3687		} else {
3688		free(line->elements[removeHere].indent);
3689		}
3690
3691		/* now collapse the array, but don't bother to realloc smaller */
3692		for (i = removeHere; i < line->numElements - 1; i++)
3693		line->elements[i] = line->elements[i + 1];
3694
3695		line->numElements--;
3696		}
3697
3698		static int argNameMatch(const char *one, const char *two)
3699		{
3700		char *first, *second;
3701		char *chptra, *chptrb;
3702		int rc;
3703
3704		first = strcpy(alloca(strlen(one) + 1), one);
3705		second = strcpy(alloca(strlen(two) + 1), two);
3706
3707		chptra = strchr(first, '=');
3708		if (chptra)
3709		*chptra = '\0';
3710
3711		chptrb = strchr(second, '=');
3712		if (chptrb)
3713		*chptrb = '\0';
3714
3715		rc = strcmp(first, second);
3716
3717		if (chptra)
3718		*chptra = '=';
3719		if (chptrb)
3720		*chptrb = '=';
3721
3722		return rc;
3723		}
3724
3725		static int argHasValue(const char *arg)
3726		{
3727		char *chptr;
3728
3729		chptr = strchr(arg, '=');
3730		if (chptr)
3731		return 1;
3732		return 0;
3733		}
3734
3735		static int argValueMatch(const char *one, const char *two)
3736		{
3737		char *first, *second;
3738		char *chptra, *chptrb;
3739
3740		first = strcpy(alloca(strlen(one) + 1), one);
3741		second = strcpy(alloca(strlen(two) + 1), two);
3742
3743		chptra = strchr(first, '=');
3744		if (chptra)
3745		chptra += 1;
3746
3747		chptrb = strchr(second, '=');
3748		if (chptrb)
3749		chptrb += 1;
3750
3751		if (!chptra && !chptrb)
3752		return 0;
3753		else if (!chptra)
3754		return *chptrb - 0;
3755		else if (!chptrb)
3756		return 0 - *chptra;
3757		else
3758		return strcmp(chptra, chptrb);
3759		}
3760
3761		int updateActualImage(struct grubConfig *cfg, const char *image,
3762		const char *prefix, const char *addArgs,
3763		const char *removeArgs, int multibootArgs)
3764		{
3765		struct singleEntry *entry;
3766		struct singleLine *line, *rootLine;
3767		int index = 0;
3768		int i, k;
3769		const char **newArgs, **oldArgs;
3770		const char **arg;
3771		int useKernelArgs, useRoot;
3772		int firstElement;
3773		int *usedElements;
3774		int doreplace;
3775
3776		if (!image)
3777		return 0;
3778
3779		if (!addArgs) {
3780		newArgs = malloc(sizeof(*newArgs));
3781		*newArgs = NULL;
3782		} else {
3783		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3784		fprintf(stderr,
3785		_("grubby: error separating arguments '%s'\n"),
3786		addArgs);
3787		return 1;
3788		}
3789		}
3790
3791		if (!removeArgs) {
3792		oldArgs = malloc(sizeof(*oldArgs));
3793		*oldArgs = NULL;
3794		} else {
3795		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3796		fprintf(stderr,
3797		_("grubby: error separating arguments '%s'\n"),
3798		removeArgs);
3799		free(newArgs);
3800		return 1;
3801		}
3802		}
3803
3804		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3805		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3806
3807		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3808		&& !multibootArgs);
3809
3810		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3811
3812		if (multibootArgs && !entry->multiboot)
3813		continue;
3814
3815		/* Determine where to put the args.  If this config supports
3816		* LT_KERNELARGS, use that.  Otherwise use
3817		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3818		*/
3819		if (useKernelArgs) {
3820		line = getLineByType(LT_KERNELARGS, entry->lines);
3821		if (!line) {
3822		/* no LT_KERNELARGS, need to add it */
3823		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3824		cfg->secondaryIndent, NULL);
3825		}
3826		firstElement = 1;
3827
3828		} else if (multibootArgs) {
3829		line = getLineByType(LT_HYPER, entry->lines);
3830		if (!line) {
3831		/* a multiboot entry without LT_HYPER? */
3832		continue;
3833		}
3834		firstElement = 2;
3835
3836		} else {
3837		line =
3838		getLineByType(LT_KERNEL | LT_MBMODULE |
3839		LT_KERNEL_EFI | LT_KERNEL_16,
3840		entry->lines);
3841		if (!line) {
3842		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3843		continue;
3844		}
3845		firstElement = 2;
3846		}
3847
3848		/* handle the elilo case which does:
3849		*   append="hypervisor args -- kernel args"
3850		*/
3851		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3852		/* this is a multiboot entry, make sure there's
3853		* -- on the args line
3854		*/
3855		for (i = firstElement; i < line->numElements; i++) {
3856		if (!strcmp(line->elements[i].item, "--"))
3857		break;
3858		}
3859		if (i == line->numElements) {
3860		/* assume all existing args are kernel args,
3861		* prepend -- to make it official
3862		*/
3863		insertElement(line, "--", firstElement,
3864		cfg->cfi);
3865		i = firstElement;
3866		}
3867		if (!multibootArgs) {
3868		/* kernel args start after the -- */
3869		firstElement = i + 1;
3870		}
3871		} else if (cfg->cfi->mbConcatArgs) {
3872		/* this is a non-multiboot entry, remove hyper args */
3873		for (i = firstElement; i < line->numElements; i++) {
3874		if (!strcmp(line->elements[i].item, "--"))
3875		break;
3876		}
3877		if (i < line->numElements) {
3878		/* remove args up to -- */
3879		while (strcmp
3880		(line->elements[firstElement].item,
3881		"--"))
3882		removeElement(line, firstElement);
3883		/* remove -- */
3884		removeElement(line, firstElement);
3885		}
3886		}
3887
3888		usedElements = calloc(line->numElements, sizeof(*usedElements));
3889
3890		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3891
3892		doreplace = 1;
3893		for (i = firstElement; i < line->numElements; i++) {
3894		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3895		!strcmp(line->elements[i].item, "--")) {
3896		/* reached the end of hyper args, insert here */
3897		doreplace = 0;
3898		break;
3899		}
3900		if (usedElements[i])
3901		continue;
3902		if (!argNameMatch(line->elements[i].item, *arg)) {
3903		usedElements[i] = 1;
3904		break;
3905		}
3906		}
3907
3908		if (i < line->numElements && doreplace) {
3909		/* direct replacement */
3910		free(line->elements[i].item);
3911		line->elements[i].item = strdup(*arg);
3912
3913		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3914		/* root= replacement */
3915		rootLine = getLineByType(LT_ROOT, entry->lines);
3916		if (rootLine) {
3917		free(rootLine->elements[1].item);
3918		rootLine->elements[1].item =
3919		strdup(*arg + 5);
3920		} else {
3921		rootLine =
3922		addLine(entry, cfg->cfi, LT_ROOT,
3923		cfg->secondaryIndent,
3924		*arg + 5);
3925		}
3926		}
3927
3928		else {
3929		/* insert/append */
3930		insertElement(line, *arg, i, cfg->cfi);
3931		usedElements =
3932		realloc(usedElements,
3933		line->numElements *
3934		sizeof(*usedElements));
3935		memmove(&usedElements[i + 1], &usedElements[i],
3936		line->numElements - i - 1);
3937		usedElements[i] = 1;
3938
3939		/* if we updated a root= here even though
3940		* there is a LT_ROOT available we need to
3941		* remove the LT_ROOT entry (this will happen
3942		* if we switch from a device to a label) */
3943		if (useRoot && !strncmp(*arg, "root=", 5)) {
3944		rootLine =
3945		getLineByType(LT_ROOT,
3946		entry->lines);
3947		if (rootLine)
3948		removeLine(entry, rootLine);
3949		}
3950		}
3951		}
3952
3953		free(usedElements);
3954
3955		for (arg = oldArgs; *arg; arg++) {
3956		for (i = firstElement; i < line->numElements; i++) {
3957		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3958		!strcmp(line->elements[i].item, "--"))
3959		/* reached the end of hyper args, stop here */
3960		break;
3961		if (!argNameMatch(line->elements[i].item, *arg)) {
3962		if (!argHasValue(*arg) ||
3963		!argValueMatch(line->elements[i].item, *arg)) {
3964		removeElement(line, i);
3965		break;
3966		}
3967		}
3968		}
3969		/* handle removing LT_ROOT line too */
3970		if (useRoot && !strncmp(*arg, "root=", 5)) {
3971		rootLine = getLineByType(LT_ROOT, entry->lines);
3972		if (rootLine)
3973		removeLine(entry, rootLine);
3974		}
3975		}
3976
3977		if (line->numElements == 1) {
3978		/* don't need the line at all (note it has to be a
3979		LT_KERNELARGS for this to happen */
3980		removeLine(entry, line);
3981		}
3982		}
3983
3984		free(newArgs);
3985		free(oldArgs);
3986
3987		return 0;
3988		}
3989
3990		int updateImage(struct grubConfig *cfg, const char *image,
3991		const char *prefix, const char *addArgs,
3992		const char *removeArgs,
3993		const char *addMBArgs, const char *removeMBArgs)
3994		{
3995		int rc = 0;
3996
3997		if (!image)
3998		return rc;
3999
4000		/* update the main args first... */
4001		if (addArgs || removeArgs)
4002		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
4003		0);
4004		if (rc)
4005		return rc;
4006
4007		/* and now any multiboot args */
4008		if (addMBArgs || removeMBArgs)
4009		rc = updateActualImage(cfg, image, prefix, addMBArgs,
4010		removeMBArgs, 1);
4011		return rc;
4012		}
4013
4014		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
4015		const char *image, const char *prefix, const char *initrd,
4016		const char *title)
4017		{
4018		struct singleEntry *entry;
4019		struct singleLine *line, *kernelLine, *endLine = NULL;
4020		int index = 0;
4021
4022		if (!image)
4023		return 0;
4024
4025		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
4026		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
4027		if (!kernelLine)
4028		continue;
4029
4030		/* if title is supplied, the entry's title must match it. */
4031		if (title) {
4032		char *linetitle;
4033
4034		line =
4035		getLineByType(LT_TITLE | LT_MENUENTRY,
4036		entry->lines);
4037		if (!line)
4038		continue;
4039
4040		linetitle = extractTitle(cfg, line);
4041		if (!linetitle)
4042		continue;
4043		if (strcmp(title, linetitle)) {
4044		free(linetitle);
4045		continue;
4046		}
4047		free(linetitle);
4048		}
4049
4050		if (prefix) {
4051		int prefixLen = strlen(prefix);
4052		if (!strncmp(initrd, prefix, prefixLen))
4053		initrd += prefixLen;
4054		}
4055		endLine = getLineByType(LT_ENTRY_END, entry->lines);
4056		if (endLine)
4057		removeLine(entry, endLine);
4058		line =
4059		addLine(entry, cfg->cfi,
4060		preferredLineType(LT_MBMODULE, cfg->cfi),
4061		kernelLine->indent, initrd);
4062		if (!line)
4063		return 1;
4064		if (endLine) {
4065		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
4066		if (!line)
4067		return 1;
4068		}
4069
4070		break;
4071		}
4072
4073		return 0;
4074		}
4075
4076		int updateInitrd(struct grubConfig *cfg, const char *image,
4077		const char *prefix, const char *initrd, const char *title)
4078		{
4079		struct singleEntry *entry;
4080		struct singleLine *line, *kernelLine, *endLine = NULL;
4081		int index = 0;
4082
4083		if (!image)
4084		return 0;
4085
4086		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
4087		kernelLine =
4088		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
4089		entry->lines);
4090		if (!kernelLine)
4091		continue;
4092
4093		/* if title is supplied, the entry's title must match it. */
4094		if (title) {
4095		char *linetitle;
4096
4097		line =
4098		getLineByType(LT_TITLE | LT_MENUENTRY,
4099		entry->lines);
4100		if (!line)
4101		continue;
4102
4103		linetitle = extractTitle(cfg, line);
4104		if (!linetitle)
4105		continue;
4106		if (strcmp(title, linetitle)) {
4107		free(linetitle);
4108		continue;
4109		}
4110		free(linetitle);
4111		}
4112
4113		line =
4114		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
4115		entry->lines);
4116		if (line)
4117		removeLine(entry, line);
4118		if (prefix) {
4119		int prefixLen = strlen(prefix);
4120		if (!strncmp(initrd, prefix, prefixLen))
4121		initrd += prefixLen;
4122		}
4123		endLine = getLineByType(LT_ENTRY_END, entry->lines);
4124		if (endLine)
4125		removeLine(entry, endLine);
4126		enum lineType_e lt;
4127		switch (kernelLine->type) {
4128		case LT_KERNEL:
4129		lt = LT_INITRD;
4130		break;
4131		case LT_KERNEL_EFI:
4132		lt = LT_INITRD_EFI;
4133		break;
4134		case LT_KERNEL_16:
4135		lt = LT_INITRD_16;
4136		break;
4137		default:
4138		lt = preferredLineType(LT_INITRD, cfg->cfi);
4139		}
4140		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
4141		if (!line)
4142		return 1;
4143		if (endLine) {
4144		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
4145		if (!line)
4146		return 1;
4147		}
4148
4149		break;
4150		}
4151
4152		return 0;
4153		}
4154
4155		int checkDeviceBootloader(const char *device, const unsigned char *boot)
4156		{
4157		int fd;
4158		unsigned char bootSect[512];
4159		int offset;
4160
4161		fd = open(device, O_RDONLY);
4162		if (fd < 0) {
4163		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4164		device, strerror(errno));
4165		return 1;
4166		}
4167
4168		if (read(fd, bootSect, 512) != 512) {
4169		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4170		device, strerror(errno));
4171		return 1;
4172		}
4173		close(fd);
4174
4175		/* first three bytes should match, a jmp short should be in there */
4176		if (memcmp(boot, bootSect, 3))
4177		return 0;
4178
4179		if (boot[1] == JMP_SHORT_OPCODE) {
4180		offset = boot[2] + 2;
4181		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4182		offset = (boot[3] << 8) + boot[2] + 2;
4183		} else if (boot[0] == JMP_SHORT_OPCODE) {
4184		offset = boot[1] + 2;
4185		/*
4186		* it looks like grub, when copying stage1 into the mbr,
4187		* patches stage1 right after the JMP location, replacing
4188		* other instructions such as JMPs for NOOPs. So, relax the
4189		* check a little bit by skipping those different bytes.
4190		*/
4191		if ((bootSect[offset + 1] == NOOP_OPCODE)
4192		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4193		offset = offset + 3;
4194		}
4195		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4196		offset = (boot[2] << 8) + boot[1] + 2;
4197		} else {
4198		return 0;
4199		}
4200
4201		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4202		return 0;
4203
4204		return 2;
4205		}
4206
4207		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4208		{
4209		int fd;
4210		char buf[65536];
4211		char *end;
4212		char *chptr;
4213		char *chptr2;
4214		int rc;
4215
4216		/* it's on raid; we need to parse /proc/mdstat and check all of the
4217		*raw* devices listed in there */
4218
4219		if (!strncmp(mdDev, "/dev/", 5))
4220		mdDev += 5;
4221
4222		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4223		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4224		strerror(errno));
4225		return 2;
4226		}
4227
4228		rc = read(fd, buf, sizeof(buf) - 1);
4229		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4230		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4231		strerror(errno));
4232		close(fd);
4233		return 2;
4234		}
4235		close(fd);
4236		buf[rc] = '\0';
4237
4238		chptr = buf;
4239		while (*chptr) {
4240		end = strchr(chptr, '\n');
4241		if (!end)
4242		break;
4243		*end = '\0';
4244
4245		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4246		chptr[strlen(mdDev)] == ' ') {
4247
4248		/* found the device */
4249		while (*chptr && *chptr != ':')
4250		chptr++;
4251		chptr++;
4252		while (*chptr && isspace(*chptr))
4253		chptr++;
4254
4255		/* skip the "active" bit */
4256		while (*chptr && !isspace(*chptr))
4257		chptr++;
4258		while (*chptr && isspace(*chptr))
4259		chptr++;
4260
4261		/* skip the raid level */
4262		while (*chptr && !isspace(*chptr))
4263		chptr++;
4264		while (*chptr && isspace(*chptr))
4265		chptr++;
4266
4267		/* everything else is partition stuff */
4268		while (*chptr) {
4269		chptr2 = chptr;
4270		while (*chptr2 && *chptr2 != '[')
4271		chptr2++;
4272		if (!*chptr2)
4273		break;
4274
4275		/* yank off the numbers at the end */
4276		chptr2--;
4277		while (isdigit(*chptr2) && chptr2 > chptr)
4278		chptr2--;
4279		chptr2++;
4280		*chptr2 = '\0';
4281
4282		/* Better, now we need the /dev/ back. We're
4283		* done with everything before this point, so
4284		* we can just put the /dev/ part there.
4285		* There will always be room. */
4286		memcpy(chptr - 5, "/dev/", 5);
4287		rc = checkDeviceBootloader(chptr - 5, boot);
4288		if (rc != 2) {
4289		return rc;
4290		}
4291
4292		chptr = chptr2 + 1;
4293		/* skip the [11] bit */
4294		while (*chptr && !isspace(*chptr))
4295		chptr++;
4296		/* and move to the next one */
4297		while (*chptr && isspace(*chptr))
4298		chptr++;
4299		}
4300
4301		/*  we're good to go */
4302		return 2;
4303		}
4304
4305		chptr = end + 1;
4306		}
4307
4308		fprintf(stderr,
4309		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4310		mdDev);
4311		return 0;
4312		}
4313
4314		int checkForLilo(struct grubConfig *config)
4315		{
4316		int fd;
4317		unsigned char boot[512];
4318		struct singleLine *line;
4319
4320		for (line = config->theLines; line; line = line->next)
4321		if (line->type == LT_BOOT)
4322		break;
4323
4324		if (!line) {
4325		fprintf(stderr,
4326		_
4327		("grubby: no boot line found in lilo configuration\n"));
4328		return 1;
4329		}
4330
4331		if (line->numElements != 2)
4332		return 1;
4333
4334		fd = open("/boot/boot.b", O_RDONLY);
4335		if (fd < 0) {
4336		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4337		"/boot/boot.b", strerror(errno));
4338		return 1;
4339		}
4340
4341		if (read(fd, boot, 512) != 512) {
4342		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4343		"/boot/boot.b", strerror(errno));
4344		return 1;
4345		}
4346		close(fd);
4347
4348		if (!strncmp("/dev/md", line->elements[1].item, 7))
4349		return checkLiloOnRaid(line->elements[1].item, boot);
4350
4351		return checkDeviceBootloader(line->elements[1].item, boot);
4352		}
4353
4354		int checkForGrub2(struct grubConfig *config)
4355		{
4356		if (!access("/etc/grub.d/", R_OK))
4357		return 2;
4358
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4359	return 1;	return 1;
4360	}	}
4361
4362		int checkForGrub(struct grubConfig *config)
4363		{
4364		int fd;
4365		unsigned char bootSect[512];
4366		char *boot;
4367		int onSuse = isSuseSystem();
4368
4369		if (onSuse) {
4370		if (parseSuseGrubConf(NULL, &boot))
4371		return 0;
4372		} else {
4373		if (parseSysconfigGrub(NULL, &boot))
4374		return 0;
4375		}
4376
4377		/* assume grub is not installed -- not an error condition */
4378		if (!boot)
4379		return 0;
4380
4381		fd = open("/boot/grub/stage1", O_RDONLY);
4382		if (fd < 0)
4383		/* this doesn't exist if grub hasn't been installed */
4384		return 0;
4385
4386		if (read(fd, bootSect, 512) != 512) {
4387		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4388		"/boot/grub/stage1", strerror(errno));
4389		close(fd);
4390		return 1;
4391		}
4392		close(fd);
4393
4394		/* The more elaborate checks do not work on SuSE. The checks done
4395		* seem to be reasonble (at least for now), so just return success
4396		*/
4397		if (onSuse)
4398		return 2;
4399
4400		return checkDeviceBootloader(boot, bootSect);
4401		}
4402
4403		int checkForExtLinux(struct grubConfig *config)
4404		{
4405		int fd;
4406		unsigned char bootSect[512];
4407		char *boot;
4408		char executable[] = "/boot/extlinux/extlinux";
4409
4410		printf("entered: checkForExtLinux()\n");
4411
4412		if (parseSysconfigGrub(NULL, &boot))
4413		return 0;
4414
4415		/* assume grub is not installed -- not an error condition */
4416		if (!boot)
4417		return 0;
4418
4419		fd = open(executable, O_RDONLY);
4420		if (fd < 0)
4421		/* this doesn't exist if grub hasn't been installed */
4422		return 0;
4423
4424		if (read(fd, bootSect, 512) != 512) {
4425		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4426		executable, strerror(errno));
4427		return 1;
4428		}
4429		close(fd);
4430
4431		return checkDeviceBootloader(boot, bootSect);
4432		}
4433
4434		int checkForYaboot(struct grubConfig *config)
4435		{
4436		/*
4437		* This is a simplistic check that we consider good enough for own puporses
4438		*
4439		* If we were to properly check if yaboot is *installed* we'd need to:
4440		* 1) get the system boot device (LT_BOOT)
4441		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4442		*    the content on the boot device
4443		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4444		* 4) check again if binary and boot device contents match
4445		*/
4446		if (!access("/etc/yaboot.conf", R_OK))
4447		return 2;
4448
	if ((configureLilo + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4449	return 1;	return 1;
4450	} else if (bootloaderProbe && grubConfig) {	}
4451	fprintf(stderr,
4452	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4453		{
4454		if (!access("/etc/elilo.conf", R_OK))
4455		return 2;
4456
4457	return 1;	return 1;
4458	} 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;
	}
4459
4460	if (!cfi) {	static size_t getRootSpecifier(const char *str)
4461	#ifdef __ia64__	{
4462	cfi = &eliloConfigType;	size_t rs = 0;
4463	#elif __powerpc__
4464	cfi = &yabootConfigType;	if (*str == '(') {
4465	#elif __sparc__	for (; str[rs] != ')' && !isspace(str[rs]); rs++) {
4466	cfi = &siloConfigType;	if (!str[rs])
4467	#elif __s390__	return rs;
4468	cfi = &ziplConfigType;	}
4469	#elif __s390x__	rs++;
4470	cfi = &ziplConfigtype;	}
4471	#else
4472	cfi = &grubConfigType;	return rs + subvolPrefix(str + rs);
4473	#endif	}
4474	}
4475		static char *getInitrdVal(struct grubConfig *config,
4476		const char *prefix, struct singleLine *tmplLine,
4477		const char *newKernelInitrd,
4478		const char **extraInitrds, int extraInitrdCount)
4479		{
4480		char *initrdVal, *end;
4481		int i;
4482		size_t totalSize;
4483		size_t prefixLen;
4484		char separatorChar;
4485
4486		prefixLen = strlen(prefix);
4487		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4488
4489		for (i = 0; i < extraInitrdCount; i++) {
4490		totalSize += sizeof(separatorChar);
4491		totalSize += strlen(extraInitrds[i]) - prefixLen;
4492		}
4493
4494		initrdVal = end = malloc(totalSize);
4495
4496		end = stpcpy(end, newKernelInitrd + prefixLen);
4497
4498		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4499		for (i = 0; i < extraInitrdCount; i++) {
4500		const char *extraInitrd;
4501		int j;
4502
4503		extraInitrd = extraInitrds[i] + prefixLen;
4504		/* Don't add entries that are already there */
4505		if (tmplLine != NULL) {
4506		for (j = 2; j < tmplLine->numElements; j++)
4507		if (strcmp
4508		(extraInitrd,
4509		tmplLine->elements[j].item) == 0)
4510		break;
4511
4512		if (j != tmplLine->numElements)
4513		continue;
4514		}
4515
4516		*end++ = separatorChar;
4517		end = stpcpy(end, extraInitrd);
4518		}
4519
4520		return initrdVal;
4521		}
4522
4523		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4524		const char *prefix,
4525		const char *newKernelPath, const char *newKernelTitle,
4526		const char *newKernelArgs, const char *newKernelInitrd,
4527		const char **extraInitrds, int extraInitrdCount,
4528		const char *newMBKernel, const char *newMBKernelArgs,
4529		const char *newDevTreePath, int newIndex)
4530		{
4531		struct singleEntry *new, *entry, *prev = NULL;
4532		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4533		int needs;
4534		char *indexs;
4535		char *chptr;
4536		int rc;
4537
4538		if (!newKernelPath)
4539		return 0;
4540
4541		rc = asprintf(&indexs, "%d", newIndex);
4542		if (rc < 0)
4543		return 1;
4544
4545		/* if the newKernelTitle is too long silently munge it into something
4546		* we can live with. truncating is first check, then we'll just mess with
4547		* it until it looks better */
4548		if (config->cfi->maxTitleLength &&
4549		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4550		char *buf = alloca(config->cfi->maxTitleLength + 7);
4551		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4552		int i = 1;
4553
4554		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4555		newKernelTitle);
4556		while (findEntryByPath(config, buf, NULL, NULL)) {
4557		sprintf(numBuf, "%d", i++);
4558		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4559		}
4560
4561		newKernelTitle = buf + 6;
4562		}
4563
4564		new = malloc(sizeof(*new));
4565		new->skip = 0;
4566		new->multiboot = 0;
4567		new->lines = NULL;
4568		entry = config->entries;
4569		for (unsigned int i = 0; i < newIndex; i++) {
4570		if (!entry)
4571		break;
4572		prev = entry;
4573		entry = entry->next;
4574		}
4575		new->next = entry;
4576
4577		if (prev)
4578		prev->next = new;
4579		else
4580		config->entries = new;
4581
4582		/* copy/update from the template */
4583		needs = NEED_KERNEL | NEED_TITLE;
4584		if (newKernelInitrd)
4585		needs |= NEED_INITRD;
4586		if (newMBKernel) {
4587		needs |= NEED_MB;
4588		new->multiboot = 1;
4589		}
4590		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4591		needs |= NEED_DEVTREE;
4592
4593		if (template) {
4594		for (masterLine = template->lines;
4595		masterLine && (tmplLine = lineDup(masterLine));
4596		lineFree(tmplLine), masterLine = masterLine->next) {
4597		dbgPrintf("addNewKernel processing %d\n",
4598		tmplLine->type);
4599
4600		/* skip comments */
4601		chptr = tmplLine->indent;
4602		while (*chptr && isspace(*chptr))
4603		chptr++;
4604		if (*chptr == '#')
4605		continue;
4606
4607		if (iskernel(tmplLine->type)
4608		&& tmplLine->numElements >= 2) {
4609		if (!template->multiboot && (needs & NEED_MB)) {
4610		/* it's not a multiboot template and
4611		* this is the kernel line.  Try to
4612		* be intelligent about inserting the
4613		* hypervisor at the same time.
4614		*/
4615		if (config->cfi->mbHyperFirst) {
4616		/* insert the hypervisor first */
4617		newLine =
4618		addLine(new, config->cfi,
4619		LT_HYPER,
4620		tmplLine->indent,
4621		newMBKernel +
4622		strlen(prefix));
4623		/* set up for adding the
4624		* kernel line */
4625		free(tmplLine->indent);
4626		tmplLine->indent =
4627		strdup(config->
4628		secondaryIndent);
4629		needs &= ~NEED_MB;
4630		}
4631		if (needs & NEED_KERNEL) {
4632		/* use addLineTmpl to
4633		* preserve line elements,
4634		* otherwise we could just
4635		* call addLine.
4636		* Unfortunately this means
4637		* making some changes to the
4638		* template such as the
4639		* indent change above and
4640		* the type change below.
4641		*/
4642		struct keywordTypes *mbm_kw =
4643		getKeywordByType
4644		(LT_MBMODULE, config->cfi);
4645		if (mbm_kw) {
4646		tmplLine->type =
4647		LT_MBMODULE;
4648		free(tmplLine->
4649		elements[0].item);
4650		tmplLine->elements[0].
4651		item =
4652		strdup(mbm_kw->key);
4653		}
4654		newLine =
4655		addLineTmpl(new, tmplLine,
4656		newLine,
4657		newKernelPath +
4658		strlen(prefix),
4659		config->cfi);
4660		needs &= ~NEED_KERNEL;
4661		}
4662		if (needs & NEED_MB) { /* !mbHyperFirst */
4663		newLine =
4664		addLine(new, config->cfi,
4665		LT_HYPER,
4666		config->
4667		secondaryIndent,
4668		newMBKernel +
4669		strlen(prefix));
4670		needs &= ~NEED_MB;
4671		}
4672		} else if (needs & NEED_KERNEL) {
4673		newLine =
4674		addLineTmpl(new, tmplLine, newLine,
4675		newKernelPath +
4676		strlen(prefix),
4677		config->cfi);
4678		needs &= ~NEED_KERNEL;
4679		}
4680
4681		} else if (tmplLine->type == LT_HYPER &&
4682		tmplLine->numElements >= 2) {
4683		if (needs & NEED_MB) {
4684		newLine =
4685		addLineTmpl(new, tmplLine, newLine,
4686		newMBKernel +
4687		strlen(prefix),
4688		config->cfi);
4689		needs &= ~NEED_MB;
4690		}
4691
4692		} else if (tmplLine->type == LT_MBMODULE &&
4693		tmplLine->numElements >= 2) {
4694		if (new->multiboot) {
4695		if (needs & NEED_KERNEL) {
4696		newLine =
4697		addLineTmpl(new, tmplLine,
4698		newLine,
4699		newKernelPath +
4700		strlen(prefix),
4701		config->cfi);
4702		needs &= ~NEED_KERNEL;
4703		} else if (config->cfi->mbInitRdIsModule
4704		&& (needs & NEED_INITRD)) {
4705		char *initrdVal;
4706		initrdVal =
4707		getInitrdVal(config, prefix,
4708		tmplLine,
4709		newKernelInitrd,
4710		extraInitrds,
4711		extraInitrdCount);
4712		newLine =
4713		addLineTmpl(new, tmplLine,
4714		newLine,
4715		initrdVal,
4716		config->cfi);
4717		free(initrdVal);
4718		needs &= ~NEED_INITRD;
4719		}
4720		} else if (needs & NEED_KERNEL) {
4721		/* template is multi but new is not,
4722		* insert the kernel in the first
4723		* module slot
4724		*/
4725		tmplLine->type =
4726		preferredLineType(LT_KERNEL,
4727		config->cfi);
4728		free(tmplLine->elements[0].item);
4729		tmplLine->elements[0].item =
4730		strdup(getKeywordByType
4731		(tmplLine->type,
4732		config->cfi)->key);
4733		newLine =
4734		addLineTmpl(new, tmplLine, newLine,
4735		newKernelPath +
4736		strlen(prefix),
4737		config->cfi);
4738		needs &= ~NEED_KERNEL;
4739		} else if (needs & NEED_INITRD) {
4740		char *initrdVal;
4741		/* template is multi but new is not,
4742		* insert the initrd in the second
4743		* module slot
4744		*/
4745		tmplLine->type =
4746		preferredLineType(LT_INITRD,
4747		config->cfi);
4748		free(tmplLine->elements[0].item);
4749		tmplLine->elements[0].item =
4750		strdup(getKeywordByType
4751		(tmplLine->type,
4752		config->cfi)->key);
4753		initrdVal =
4754		getInitrdVal(config, prefix,
4755		tmplLine,
4756		newKernelInitrd,
4757		extraInitrds,
4758		extraInitrdCount);
4759		newLine =
4760		addLineTmpl(new, tmplLine, newLine,
4761		initrdVal, config->cfi);
4762		free(initrdVal);
4763		needs &= ~NEED_INITRD;
4764		}
4765
4766		} else if (isinitrd(tmplLine->type)
4767		&& tmplLine->numElements >= 2) {
4768		if (needs & NEED_INITRD && new->multiboot
4769		&& !template->multiboot
4770		&& config->cfi->mbInitRdIsModule) {
4771		/* make sure we don't insert the
4772		* module initrd before the module
4773		* kernel... if we don't do it here,
4774		* it will be inserted following the
4775		* template.
4776		*/
4777		if (!needs & NEED_KERNEL) {
4778		char *initrdVal;
4779
4780		initrdVal =
4781		getInitrdVal(config, prefix,
4782		tmplLine,
4783		newKernelInitrd,
4784		extraInitrds,
4785		extraInitrdCount);
4786		newLine =
4787		addLine(new, config->cfi,
4788		LT_MBMODULE,
4789		config->
4790		secondaryIndent,
4791		initrdVal);
4792		free(initrdVal);
4793		needs &= ~NEED_INITRD;
4794		}
4795		} else if (needs & NEED_INITRD) {
4796		char *initrdVal;
4797		initrdVal =
4798		getInitrdVal(config, prefix,
4799		tmplLine,
4800		newKernelInitrd,
4801		extraInitrds,
4802		extraInitrdCount);
4803		newLine =
4804		addLineTmpl(new, tmplLine, newLine,
4805		initrdVal, config->cfi);
4806		free(initrdVal);
4807		needs &= ~NEED_INITRD;
4808		}
4809
4810		} else if (tmplLine->type == LT_MENUENTRY &&
4811		(needs & NEED_TITLE)) {
4812		requote(tmplLine, config->cfi);
4813		char *nkt = malloc(strlen(newKernelTitle) + 3);
4814		strcpy(nkt, "'");
4815		strcat(nkt, newKernelTitle);
4816		strcat(nkt, "'");
4817		newLine =
4818		addLineTmpl(new, tmplLine, newLine, nkt,
4819		config->cfi);
4820		free(nkt);
4821		needs &= ~NEED_TITLE;
4822		} else if (tmplLine->type == LT_TITLE &&
4823		(needs & NEED_TITLE)) {
4824		if (tmplLine->numElements >= 2) {
4825		newLine =
4826		addLineTmpl(new, tmplLine, newLine,
4827		newKernelTitle,
4828		config->cfi);
4829		needs &= ~NEED_TITLE;
4830		} else if (tmplLine->numElements == 1 &&
4831		config->cfi->titleBracketed) {
4832		/* addLineTmpl doesn't handle
4833		* titleBracketed */
4834		newLine =
4835		addLine(new, config->cfi, LT_TITLE,
4836		tmplLine->indent,
4837		newKernelTitle);
4838		needs &= ~NEED_TITLE;
4839		}
4840		} else if (tmplLine->type == LT_ECHO) {
4841		requote(tmplLine, config->cfi);
4842		static const char *prefix = "'Loading ";
4843		if (tmplLine->numElements > 1 &&
4844		strstr(tmplLine->elements[1].item, prefix)
4845		&& masterLine->next
4846		&& iskernel(masterLine->next->type)) {
4847		char *newTitle =
4848		malloc(strlen(prefix) +
4849		strlen(newKernelTitle) + 2);
4850
4851		strcpy(newTitle, prefix);
4852		strcat(newTitle, newKernelTitle);
4853		strcat(newTitle, "'");
4854		newLine =
4855		addLine(new, config->cfi, LT_ECHO,
4856		tmplLine->indent, newTitle);
4857		free(newTitle);
4858		} else {
4859		/* pass through other lines from the
4860		* template */
4861		newLine =
4862		addLineTmpl(new, tmplLine, newLine,
4863		NULL, config->cfi);
4864		}
4865		} else if (tmplLine->type == LT_DEVTREE &&
4866		tmplLine->numElements == 2
4867		&& newDevTreePath) {
4868		newLine =
4869		addLineTmpl(new, tmplLine, newLine,
4870		newDevTreePath + strlen(prefix),
4871		config->cfi);
4872		needs &= ~NEED_DEVTREE;
4873		} else if (tmplLine->type == LT_ENTRY_END
4874		&& needs & NEED_DEVTREE) {
4875		const char *ndtp = newDevTreePath;
4876		if (!strncmp
4877		(newDevTreePath, prefix, strlen(prefix)))
4878		ndtp += strlen(prefix);
4879		newLine = addLine(new, config->cfi, LT_DEVTREE,
4880		config->secondaryIndent,
4881		ndtp);
4882		needs &= ~NEED_DEVTREE;
4883		newLine =
4884		addLineTmpl(new, tmplLine, newLine, NULL,
4885		config->cfi);
4886		} else {
4887		/* pass through other lines from the template */
4888		newLine =
4889		addLineTmpl(new, tmplLine, newLine, NULL,
4890		config->cfi);
4891		}
4892		}
4893
4894		} else {
4895		/* don't have a template, so start the entry with the
4896		* appropriate starting line
4897		*/
4898		switch (config->cfi->entryStart) {
4899		case LT_KERNEL:
4900		case LT_KERNEL_EFI:
4901		case LT_KERNEL_16:
4902		if (new->multiboot && config->cfi->mbHyperFirst) {
4903		/* fall through to LT_HYPER */
4904		} else {
4905		newLine = addLine(new, config->cfi,
4906		preferredLineType(LT_KERNEL,
4907		config->
4908		cfi),
4909		config->primaryIndent,
4910		newKernelPath +
4911		strlen(prefix));
4912		needs &= ~NEED_KERNEL;
4913		break;
4914		}
4915
4916		case LT_HYPER:
4917		newLine = addLine(new, config->cfi, LT_HYPER,
4918		config->primaryIndent,
4919		newMBKernel + strlen(prefix));
4920		needs &= ~NEED_MB;
4921		break;
4922
4923		case LT_MENUENTRY:{
4924		char *nkt = malloc(strlen(newKernelTitle) + 3);
4925		strcpy(nkt, "'");
4926		strcat(nkt, newKernelTitle);
4927		strcat(nkt, "'");
4928		newLine =
4929		addLine(new, config->cfi, LT_MENUENTRY,
4930		config->primaryIndent, nkt);
4931		free(nkt);
4932		needs &= ~NEED_TITLE;
4933		needs |= NEED_END;
4934		break;
4935		}
4936		case LT_TITLE:
4937		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4938		char *templabel;
4939		int x = 0, y = 0;
4940
4941		templabel = strdup(newKernelTitle);
4942		while (templabel[x]) {
4943		if (templabel[x] == ' ') {
4944		y = x;
4945		while (templabel[y]) {
4946		templabel[y] =
4947		templabel[y + 1];
4948		y++;
4949		}
4950		}
4951		x++;
4952		}
4953		newLine = addLine(new, config->cfi, LT_TITLE,
4954		config->primaryIndent,
4955		templabel);
4956		free(templabel);
4957		} else {
4958		newLine = addLine(new, config->cfi, LT_TITLE,
4959		config->primaryIndent,
4960		newKernelTitle);
4961		}
4962		needs &= ~NEED_TITLE;
4963		break;
4964
4965		default:
4966		abort();
4967		}
4968		}
4969
4970		struct singleLine *endLine = NULL;
4971		endLine = getLineByType(LT_ENTRY_END, new->lines);
4972		if (endLine) {
4973		removeLine(new, endLine);
4974		needs |= NEED_END;
4975		}
4976
4977		/* add the remainder of the lines, i.e. those that either
4978		* weren't present in the template, or in the case of no template,
4979		* all the lines following the entryStart.
4980		*/
4981		if (needs & NEED_TITLE) {
4982		newLine = addLine(new, config->cfi, LT_TITLE,
4983		config->secondaryIndent, newKernelTitle);
4984		needs &= ~NEED_TITLE;
4985		}
4986		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4987		newLine = addLine(new, config->cfi, LT_HYPER,
4988		config->secondaryIndent,
4989		newMBKernel + strlen(prefix));
4990		needs &= ~NEED_MB;
4991		}
4992		if (needs & NEED_KERNEL) {
4993		newLine = addLine(new, config->cfi,
4994		(new->multiboot
4995		&& getKeywordByType(LT_MBMODULE,
4996		config->cfi))
4997		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4998		config->
4999		cfi),
5000		config->secondaryIndent,
5001		newKernelPath + strlen(prefix));
5002		needs &= ~NEED_KERNEL;
5003		}
5004		if (needs & NEED_MB) {
5005		newLine = addLine(new, config->cfi, LT_HYPER,
5006		config->secondaryIndent,
5007		newMBKernel + strlen(prefix));
5008		needs &= ~NEED_MB;
5009		}
5010		if (needs & NEED_INITRD) {
5011		char *initrdVal;
5012		initrdVal =
5013		getInitrdVal(config, prefix, NULL, newKernelInitrd,
5014		extraInitrds, extraInitrdCount);
5015		newLine =
5016		addLine(new, config->cfi,
5017		(new->multiboot
5018		&& getKeywordByType(LT_MBMODULE, config->cfi))
5019		? LT_MBMODULE : preferredLineType(LT_INITRD,
5020		config->cfi),
5021		config->secondaryIndent, initrdVal);
5022		free(initrdVal);
5023		needs &= ~NEED_INITRD;
5024		}
5025		if (needs & NEED_DEVTREE) {
5026		newLine = addLine(new, config->cfi, LT_DEVTREE,
5027		config->secondaryIndent, newDevTreePath);
5028		needs &= ~NEED_DEVTREE;
5029		}
5030
5031		/* NEEDS_END must be last on bootloaders that need it... */
5032		if (needs & NEED_END) {
5033		newLine = addLine(new, config->cfi, LT_ENTRY_END,
5034		config->secondaryIndent, NULL);
5035		needs &= ~NEED_END;
5036		}
5037
5038		if (needs) {
5039		printf(_("grubby: needs=%d, aborting\n"), needs);
5040		abort();
5041		}
5042
5043		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
5044		newMBKernelArgs, NULL)) {
5045		config->isModified = 1;
5046		return 1;
5047		}
5048
5049		return 0;
5050		}
5051
5052		int main(int argc, const char **argv)
5053		{
5054		poptContext optCon;
5055		const char *grubConfig = NULL;
5056		char *outputFile = NULL;
5057		int arg = 0;
5058		int flags = 0;
5059		int badImageOkay = 0;
5060		int configureGrub2 = 0;
5061		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
5062		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
5063		int configureExtLinux = 0;
5064		int bootloaderProbe = 0;
5065		int extraInitrdCount = 0;
5066		char *updateKernelPath = NULL;
5067		char *newKernelPath = NULL;
5068		char *removeKernelPath = NULL;
5069		char *newKernelArgs = NULL;
5070		char *newKernelInitrd = NULL;
5071		char *newKernelTitle = NULL;
5072		char *newDevTreePath = NULL;
5073		char *newMBKernel = NULL;
5074		char *newMBKernelArgs = NULL;
5075		int newIndex = 0;
5076		char *removeMBKernelArgs = NULL;
5077		char *removeMBKernel = NULL;
5078		char *bootPrefix = NULL;
5079		char *defaultKernel = NULL;
5080		char *removeArgs = NULL;
5081		char *kernelInfo = NULL;
5082		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
5083		char *envPath = NULL;
5084		const char *chptr = NULL;
5085		struct configFileInfo *cfi = NULL;
5086		struct grubConfig *config;
5087		struct singleEntry *template = NULL;
5088		int copyDefault = 0, makeDefault = 0;
5089		int displayDefault = 0;
5090		int displayDefaultIndex = 0;
5091		int displayDefaultTitle = 0;
5092		int defaultIndex = -1;
5093		struct poptOption options[] = {
5094		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
5095		_("add an entry for the specified kernel"), _("kernel-path")},
5096		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
5097		_("add an entry for the specified multiboot kernel"), NULL},
5098		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
5099		_("default arguments for the new kernel or new arguments for "
5100		"kernel being updated"), _("args")},
5101		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
5102		_("default arguments for the new multiboot kernel or "
5103		"new arguments for multiboot kernel being updated"), NULL},
5104		{"mounts", 0, POPT_ARG_STRING, &mounts, 0,
5105		_("path to fake /proc/mounts file (for testing only)"),
5106		_("mounts")},
5107		{"bad-image-okay", 0, 0, &badImageOkay, 0,
5108		_
5109		("don't sanity check images in boot entries (for testing only)"),
5110		NULL},
5111		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
5112		_
5113		("filesystem which contains /boot directory (for testing only)"),
5114		_("bootfs")},
5115		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
5116		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
5117		_("check which bootloader is installed on boot sector")},
5118		#endif
5119		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
5120		_("path to grub config file to update (\"-\" for stdin)"),
5121		_("path")},
5122		{"copy-default", 0, 0, &copyDefault, 0,
5123		_("use the default boot entry as a template for the new entry "
5124		"being added; if the default is not a linux image, or if "
5125		"the kernel referenced by the default image does not exist, "
5126		"the first linux entry whose kernel does exist is used as the "
5127		"template"), NULL},
5128		{"debug", 0, 0, &debug, 0,
5129		_("print debugging information for failures")},
5130		{"default-kernel", 0, 0, &displayDefault, 0,
5131		_("display the path of the default kernel")},
5132		{"default-index", 0, 0, &displayDefaultIndex, 0,
5133		_("display the index of the default kernel")},
5134		{"default-title", 0, 0, &displayDefaultTitle, 0,
5135		_("display the title of the default kernel")},
5136		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5137		_("device tree file for new stanza"), _("dtb-path")},
5138		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
5139		_("device tree directory for new stanza"), _("dtb-path")},
5140		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
5141		_("configure elilo bootloader")},
5142		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
5143		_("force grub2 stanzas to use efi")},
5144		{"env", 0, POPT_ARG_STRING, &envPath, 0,
5145		_("path for environment data"),
5146		_("path")},
5147		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
5148		_("configure extlinux bootloader (from syslinux)")},
5149		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
5150		_("configure grub bootloader")},
5151		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
5152		_("configure grub2 bootloader")},
5153		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
5154		_("display boot information for specified kernel"),
5155		_("kernel-path")},
5156		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
5157		_("initrd image for the new kernel"), _("initrd-path")},
5158		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
5159		_
5160		("auxiliary initrd image for things other than the new kernel"),
5161		_("initrd-path")},
5162		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
5163		_("configure lilo bootloader")},
5164		{"make-default", 0, 0, &makeDefault, 0,
5165		_("make the newly added entry the default boot entry"), NULL},
5166		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
5167		_("path to output updated config file (\"-\" for stdout)"),
5168		_("path")},
5169		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
5170		_("remove kernel arguments"), NULL},
5171		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
5172		_("remove multiboot kernel arguments"), NULL},
5173		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
5174		_("remove all entries for the specified kernel"),
5175		_("kernel-path")},
5176		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
5177		_("remove all entries for the specified multiboot kernel"),
5178		NULL},
5179		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
5180		_("make the first entry referencing the specified kernel "
5181		"the default"), _("kernel-path")},
5182		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5183		_("make the given entry index the default entry"),
5184		_("entry-index")},
5185		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5186		_("use the given index when creating a new entry"),
5187		_("entry-index")},
5188		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5189		_("configure silo bootloader")},
5190		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5191		_("title to use for the new kernel entry"), _("entry-title")},
5192		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5193		_("updated information for the specified kernel"),
5194		_("kernel-path")},
5195		{"version", 'v', 0, NULL, 'v',
5196		_("print the version of this program and exit"), NULL},
5197		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5198		_("configure yaboot bootloader")},
5199		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5200		_("configure zipl bootloader")},
5201		POPT_AUTOHELP {0, 0, 0, 0, 0}
5202		};
5203
5204		useextlinuxmenu = 0;
5205
5206		int i = 0;
5207		for (int j = 1; j < argc; j++)
5208		i += strlen(argv[j]) + 1;
5209		saved_command_line = malloc(i);
5210		if (!saved_command_line) {
5211		fprintf(stderr, "grubby: %m\n");
5212		exit(1);
5213		}
5214		saved_command_line[0] = '\0';
5215		for (int j = 1; j < argc; j++) {
5216		strcat(saved_command_line, argv[j]);
5217		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5218		}
5219
5220		optCon = poptGetContext("grubby", argc, argv, options, 0);
5221		poptReadDefaultConfig(optCon, 1);
5222
5223		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5224		switch (arg) {
5225		case 'v':
5226		printf("grubby version %s\n", VERSION);
5227		exit(0);
5228		break;
5229		case 'i':
5230		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5231		extraInitrds[extraInitrdCount++] =
5232		strdup(poptGetOptArg(optCon));
5233		} else {
5234		fprintf(stderr,
5235		_
5236		("grubby: extra initrd maximum is %d\n"),
5237		extraInitrdCount);
5238		return 1;
5239		}
5240		break;
5241		}
5242		}
5243
5244	if (!grubConfig)	if (arg < -1) {
5245	grubConfig = cfi->defaultConfig;	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5246		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5247		poptStrerror(arg));
5248		return 1;
5249		}
5250
5251	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if ((chptr = poptGetArg(optCon))) {
5252	newKernelPath || removeKernelPath || makeDefault ||	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5253	defaultKernel)) {	return 1;
5254	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	}
5255
5256		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5257		configureYaboot + configureSilo + configureZipl +
5258		configureExtLinux) > 1) {
5259		fprintf(stderr,
5260		_("grubby: cannot specify multiple bootloaders\n"));
5261		return 1;
5262		} else if (bootloaderProbe && grubConfig) {
5263		fprintf(stderr,
5264		_
5265		("grubby: cannot specify config file with --bootloader-probe\n"));
5266		return 1;
5267		} else if (configureGrub2) {
5268		cfi = &grub2ConfigType;
5269		if (envPath)
5270		cfi->envFile = envPath;
5271		} else if (configureLilo) {
5272		cfi = &liloConfigType;
5273		} else if (configureGrub) {
5274		cfi = &grubConfigType;
5275		} else if (configureELilo) {
5276		cfi = &eliloConfigType;
5277		} else if (configureYaboot) {
5278		cfi = &yabootConfigType;
5279		} else if (configureSilo) {
5280		cfi = &siloConfigType;
5281		} else if (configureZipl) {
5282		cfi = &ziplConfigType;
5283		} else if (configureExtLinux) {
5284		cfi = &extlinuxConfigType;
5285		useextlinuxmenu = 1;
5286		}
5287
5288		if (!cfi) {
5289		if (grub2FindConfig(&grub2ConfigType)) {
5290		cfi = &grub2ConfigType;
5291		configureGrub2 = 1;
5292		if (envPath)
5293		cfi->envFile = envPath;
5294		} else {
5295		#ifdef __ia64__
5296		cfi = &eliloConfigType;
5297		configureLilo = 1;
5298		#elif defined(__powerpc__)
5299		cfi = &yabootConfigType;
5300		configureYaboot = 1;
5301		#elif defined(__sparc__)
5302		cfi = &siloConfigType;
5303		configureSilo = 1;
5304		#elif defined(__s390__) || defined(__s390x__)
5305		cfi = &ziplConfigType;
5306		configureZipl = 1;
5307		#else
5308		cfi = &grubConfigType;
5309		configureGrub = 1;
5310		#endif
5311		}
5312		}
5313
5314		if (!grubConfig) {
5315		if (cfi->findConfig)
5316		grubConfig = cfi->findConfig(cfi);
5317		if (!grubConfig)
5318		grubConfig = cfi->defaultConfig;
5319		}
5320
5321		if (bootloaderProbe && (displayDefault || kernelInfo ||
5322		newKernelPath || removeKernelPath || makeDefault
5323		|| defaultKernel || displayDefaultIndex
5324		|| displayDefaultTitle
5325		|| (defaultIndex >= 0))) {
5326		fprintf(stderr,
5327		_("grubby: --bootloader-probe may not be used with "
5328	"specified option"));	"specified option"));
5329	return 1;	return 1;
5330	}	}
5331
5332	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5333	removeKernelPath)) {	removeKernelPath)) {
5334	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5335	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5336	return 1;	return 1;
5337	}	}
5338
5339	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5340	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5341	return 1;	return 1;
5342	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5343	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5344	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5345	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5346	return 1;	return 1;
5347	}	}
5348
5349	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5350	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5351	"not be used together"));	"not be used together"));
5352	return 1;	return 1;
5353	}	}
5354
5355	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5356	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5357		"may not be used together\n"));
5358		return 1;
5359		} else if (defaultKernel && removeKernelPath &&
5360		!strcmp(defaultKernel, removeKernelPath)) {
5361		fprintf(stderr,
5362		_("grubby: cannot make removed kernel the default\n"));
5363		return 1;
5364		} else if (defaultKernel && newKernelPath &&
5365		!strcmp(defaultKernel, newKernelPath)) {
5366		makeDefault = 1;
5367		defaultKernel = NULL;
5368		} else if (defaultKernel && (defaultIndex >= 0)) {
5369		fprintf(stderr,
5370		_("grubby: --set-default and --set-default-index "
5371	"may not be used together\n"));	"may not be used together\n"));
5372	return 1;	return 1;
5373	} else if (defaultKernel && removeKernelPath &&	}
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
5374
5375	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5376	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5377	"is used\n"));	_("grubby: output file must be specified if stdin "
5378	return 1;	"is used\n"));
5379	}	return 1;
5380		}
5381
5382	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5383	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5384	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5385	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5386	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5387	}	return 1;
5388		}
5389
5390	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5391
5392	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5393	if (!bootPrefix) {	if (!bootPrefix) {
5394	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5395	if (!bootPrefix) return 1;	if (!bootPrefix)
5396	} else {	return 1;
5397	/* this shouldn't end with a / */	} else {
5398	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5399	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5400		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5401		}
5402		} else {
5403		bootPrefix = "";
5404	}	}
	} else {
	bootPrefix = "";
	}
5405
5406	if (bootloaderProbe) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5407	int lrc = 0, grc = 0;	fprintf(stderr,
5408	struct grubConfig * lconfig, * gconfig;	_("grubby: %s doesn't allow multiple initrds\n"),
5409		cfi->defaultConfig);
5410	if (!access(grubConfigType.defaultConfig, F_OK)) {	return 1;
5411	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);
	}
5412
5413	if (lrc == 1 || grc == 1) return 1;	if (bootloaderProbe) {
5414		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5415		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5416
5417		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5418		if (grub2config) {
5419		gconfig = readConfig(grub2config, &grub2ConfigType);
5420		if (!gconfig)
5421		gr2c = 1;
5422		else
5423		gr2c = checkForGrub2(gconfig);
5424		}
5425
5426	if (lrc == 2) printf("lilo\n");	const char *grubconfig = grubFindConfig(&grubConfigType);
5427	if (grc == 2) printf("grub\n");	if (!access(grubconfig, F_OK)) {
5428		gconfig = readConfig(grubconfig, &grubConfigType);
5429		if (!gconfig)
5430		grc = 1;
5431		else
5432		grc = checkForGrub(gconfig);
5433		}
5434
5435	return 0;	if (!access(liloConfigType.defaultConfig, F_OK)) {
5436	}	lconfig =
5437		readConfig(liloConfigType.defaultConfig,
5438		&liloConfigType);
5439		if (!lconfig)
5440		lrc = 1;
5441		else
5442		lrc = checkForLilo(lconfig);
5443		}
5444
5445	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5446	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5447		&eliloConfigType);
5448		if (!econfig)
5449		erc = 1;
5450		else
5451		erc = checkForElilo(econfig);
5452		}
5453
5454	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5455	struct singleLine * line;	lconfig =
5456	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5457	char * rootspec;	&extlinuxConfigType);
5458		if (!lconfig)
5459	if (config->defaultImage == -1) return 0;	extrc = 1;
5460	entry = findEntryByIndex(config, config->defaultImage);	else
5461	if (!entry) return 0;	extrc = checkForExtLinux(lconfig);
5462	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;	}
	line = entry->lines;
	while (line && line->type != LT_KERNEL) line = line->next;
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
5463
5464	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5465	} else if (kernelInfo)	yconfig = readConfig(yabootConfigType.defaultConfig,
5466	return displayInfo(config, kernelInfo, bootPrefix);	&yabootConfigType);
5467		if (!yconfig)
5468		yrc = 1;
5469		else
5470		yrc = checkForYaboot(yconfig);
5471		}
5472
5473	if (copyDefault) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5474	template = findTemplate(config, bootPrefix, NULL, 0, flags);	|| erc == 1)
5475	if (!template) return 1;	return 1;
5476	}
5477		if (lrc == 2)
5478		printf("lilo\n");
5479		if (gr2c == 2)
5480		printf("grub2\n");
5481		if (grc == 2)
5482		printf("grub\n");
5483		if (extrc == 2)
5484		printf("extlinux\n");
5485		if (yrc == 2)
5486		printf("yaboot\n");
5487		if (erc == 2)
5488		printf("elilo\n");
5489
5490		return 0;
5491		}
5492
5493		if (grubConfig == NULL) {
5494		printf("Could not find bootloader configuration file.\n");
5495		exit(1);
5496		}
5497
5498	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5499	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5500	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5501	bootPrefix, flags);
5502	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5503	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5504	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5505	if (addNewKernel(config, template, bootPrefix, newKernelPath,	size_t rs;
5506	newKernelTitle, newKernelArgs, newKernelInitrd,
5507	newMBKernel, newMBKernelArgs)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5508		return 0;
5509		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5510	if (numEntries(config) == 0) {	cfi->defaultIsSaved)
5511	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	config->defaultImage = FIRST_ENTRY_INDEX;
5512	"Not writing out new config.\n"));	entry = findEntryByIndex(config, config->defaultImage);
5513	return 1;	if (!entry)
5514	}	return 0;
5515		if (!suitableImage(entry, bootPrefix, 0, flags))
5516		return 0;
5517
5518		line =
5519		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5520		LT_KERNEL_16, entry->lines);
5521		if (!line)
5522		return 0;
5523
5524		rs = getRootSpecifier(line->elements[1].item);
5525		printf("%s%s\n", bootPrefix, line->elements[1].item + rs);
5526
5527		return 0;
5528
5529		} else if (displayDefaultTitle) {
5530		struct singleLine *line;
5531		struct singleEntry *entry;
5532
5533		if (config->defaultImage == NO_DEFAULT_ENTRY)
5534		return 0;
5535		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5536		cfi->defaultIsSaved)
5537		config->defaultImage = FIRST_ENTRY_INDEX;
5538		entry = findEntryByIndex(config, config->defaultImage);
5539		if (!entry)
5540		return 0;
5541
5542		if (!configureGrub2) {
5543		char *title;
5544		line = getLineByType(LT_TITLE, entry->lines);
5545		if (!line)
5546		return 0;
5547		title = extractTitle(config, line);
5548		if (!title)
5549		return 0;
5550		printf("%s\n", title);
5551		free(title);
5552		} else {
5553		char *title;
5554
5555		dbgPrintf
5556		("This is GRUB2, default title is embeded in menuentry\n");
5557		line = getLineByType(LT_MENUENTRY, entry->lines);
5558		if (!line)
5559		return 0;
5560		title = grub2ExtractTitle(line);
5561		if (title)
5562		printf("%s\n", title);
5563		}
5564		return 0;
5565
5566		} else if (displayDefaultIndex) {
5567		if (config->defaultImage == NO_DEFAULT_ENTRY)
5568		return 0;
5569		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5570		cfi->defaultIsSaved)
5571		config->defaultImage = FIRST_ENTRY_INDEX;
5572		printf("%i\n", config->defaultImage);
5573		return 0;
5574
5575		} else if (kernelInfo)
5576		return displayInfo(config, kernelInfo, bootPrefix);
5577
5578		if (copyDefault) {
5579		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5580		if (!template)
5581		return 1;
5582		}
5583
5584		markRemovedImage(config, removeKernelPath, bootPrefix);
5585		markRemovedImage(config, removeMBKernel, bootPrefix);
5586		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5587		makeDefault, bootPrefix, flags, defaultIndex,
5588		newIndex);
5589		setFallbackImage(config, newKernelPath != NULL);
5590		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5591		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5592		return 1;
5593		if (updateKernelPath && newKernelInitrd) {
5594		if (newMBKernel) {
5595		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5596		bootPrefix, newKernelInitrd,
5597		newKernelTitle))
5598		return 1;
5599		} else {
5600		if (updateInitrd(config, updateKernelPath, bootPrefix,
5601		newKernelInitrd, newKernelTitle))
5602		return 1;
5603		}
5604		}
5605		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5606		newKernelTitle, newKernelArgs, newKernelInitrd,
5607		(const char **)extraInitrds, extraInitrdCount,
5608		newMBKernel, newMBKernelArgs, newDevTreePath,
5609		newIndex))
5610		return 1;
5611
5612		if (numEntries(config) == 0) {
5613		fprintf(stderr,
5614		_("grubby: doing this would leave no kernel entries. "
5615		"Not writing out new config.\n"));
5616		return 1;
5617		}
5618
5619	if (!outputFile)	if (!outputFile)
5620	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5621
5622	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5623	}	}

---

Colored Diff Long Colored Diff Full Colored Diff Unidiff Context Diff Side by Side

Legend: Removed from v.532   changed lines   Added in v.3139