Diff of /tags/grubby-8_40_20170706/grubby.c

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	trunk/mkinitrd-magellan/grubby/grubby.c revision 532 by niro, Sat Sep 1 22:45:15 2007 UTC	trunk/grubby/grubby.c revision 3019 by niro, Tue Jun 27 14:38:16 2017 UTC
#	Line 1	Line 1
1	/* Copyright (C) 2001-2005 Red Hat, Inc.	/*
2		* grubby.c
3	This program is free software; you can redistribute it and/or	*
4	modify it under the terms of the General Public License as published	* Copyright (C) 2001-2008 Red Hat, Inc.
5	by the Free Software Foundation; either version 2 of the License, or	* All rights reserved.
6	(at your option) any later version.	*
7		* This program is free software; you can redistribute it and/or modify
8	This program is distributed in the hope that it will be useful,	* it under the terms of the GNU General Public License as published by
9	but WITHOUT ANY WARRANTY; without even the implied warranty of	* the Free Software Foundation; either version 2 of the License, or
10	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU	* (at your option) any later version.
11	General Public License for more details.	*
12		* This program is distributed in the hope that it will be useful,
13	You should have received a copy of the GNU General Public	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	License along with this program; if not, write to the Free	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA	* GNU General Public License for more details.
16	02111-1307 USA.  */	*
17		* You should have received a copy of the GNU General Public License
18		* along with this program.  If not, see <http://www.gnu.org/licenses/>.
19		*/
20
21		#ifndef _GNU_SOURCE
22		#define _GNU_SOURCE
23		#endif
24	#include <ctype.h>	#include <ctype.h>
25	#include <errno.h>	#include <errno.h>
26	#include <fcntl.h>	#include <fcntl.h>
#	Line 25	Line 31
31	#include <string.h>	#include <string.h>
32	#include <sys/stat.h>	#include <sys/stat.h>
33	#include <unistd.h>	#include <unistd.h>
34		#include <libgen.h>
35		#include <execinfo.h>
36		#include <signal.h>
37		#include <blkid/blkid.h>
38
39		#include "log.h"
40
41		#ifndef DEBUG
42		#define DEBUG 0
43		#endif
44
45		#if DEBUG
46		#define dbgPrintf(format, args...) fprintf(stderr, format , ## args)
47		#else
48		#define dbgPrintf(format, args...)
49		#endif
50
51	#include "mount_by_label.h"	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
55		#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */
56	#define CODE_SEG_SIZE  128 /* code segment checked by --bootloader-probe */	#define CODE_SEG_SIZE  128 /* code segment checked by --bootloader-probe */
57
58		#define NOOP_OPCODE 0x90
59		#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e { LT_WHITESPACE, LT_TITLE, LT_KERNEL, LT_INITRD, LT_DEFAULT,	enum lineType_e {
78	LT_UNKNOWN, LT_ROOT, LT_FALLBACK, LT_KERNELARGS, LT_BOOT,	LT_UNIDENTIFIED = 0,
79	LT_BOOTROOT, LT_LBA, LT_MBMODULE, LT_OTHER, LT_GENERIC };	LT_WHITESPACE = 1 << 0,
80		LT_TITLE = 1 << 1,
81		LT_KERNEL = 1 << 2,
82		LT_INITRD = 1 << 3,
83		LT_HYPER = 1 << 4,
84		LT_DEFAULT = 1 << 5,
85		LT_MBMODULE = 1 << 6,
86		LT_ROOT = 1 << 7,
87		LT_FALLBACK = 1 << 8,
88		LT_KERNELARGS = 1 << 9,
89		LT_BOOT = 1 << 10,
90		LT_BOOTROOT = 1 << 11,
91		LT_LBA = 1 << 12,
92		LT_OTHER = 1 << 13,
93		LT_GENERIC = 1 << 14,
94		LT_ECHO = 1 << 16,
95		LT_MENUENTRY = 1 << 17,
96		LT_ENTRY_END = 1 << 18,
97		LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104		};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
122
123	#define GRUB_CONFIG_NO_DEFAULT    (1 << 0) /* don't write out default=0 */	#define GRUB_CONFIG_NO_DEFAULT    (1 << 0) /* don't write out default=0 */
124
125	#define KERNEL_KERNEL    (1 << 0)	/* These defines are (only) used in addNewKernel() */
126	#define KERNEL_INITRD    (1 << 2)	#define NEED_KERNEL  (1 << 0)
127	#define KERNEL_TITLE    (1 << 3)	#define NEED_INITRD  (1 << 1)
128	#define KERNEL_ARGS    (1 << 4)	#define NEED_TITLE   (1 << 2)
129	#define KERNEL_MB           (1 << 5)	#define NEED_ARGS    (1 << 3)
130		#define NEED_MB      (1 << 4)
131		#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140		#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	} ;	char separatorChar;
147		};
148
149		struct configFileInfo;
150
151		typedef const char *(*findConfigFunc) (struct configFileInfo *);
152		typedef const int (*writeLineFunc) (struct configFileInfo *,
153		struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	struct keywordTypes * keywords;	findConfigFunc findConfig;
160	int defaultIsIndex;	writeLineFunc writeLine;
161	int defaultSupportSaved;	getEnvFunc getEnv;
162	enum lineType_e entrySeparator;	setEnvFunc setEnv;
163	int needsBootPrefix;	struct keywordTypes *keywords;
164	int argsInQuotes;	int caseInsensitive;
165	int maxTitleLength;	int defaultIsIndex;
166	int titleBracketed;	int defaultIsVariable;
167		int defaultSupportSaved;
168		int defaultIsSaved;
169		int defaultIsUnquoted;
170		enum lineType_e entryStart;
171		enum lineType_e entryEnd;
172		int needsBootPrefix;
173		int argsInQuotes;
174		int maxTitleLength;
175		int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ NULL,    0, 0 },	{"kernel", LT_HYPER, ' '},
193		{NULL, 0, 0},
194	};	};
195
196		const char *grubFindConfig(struct configFileInfo *cfi)
197		{
198		static const char *configFiles[] = {
199		"/boot/grub/grub.conf",
200		"/boot/grub/menu.lst",
201		"/etc/grub.conf",
202		NULL
203		};
204		static int i = -1;
205
206		if (i == -1) {
207		for (i = 0; configFiles[i] != NULL; i++) {
208		dbgPrintf("Checking \"%s\": ", configFiles[i]);
209		if (!access(configFiles[i], R_OK)) {
210		dbgPrintf("found\n");
211		return configFiles[i];
212		}
213		dbgPrintf("not found\n");
214		}
215		}
216		return configFiles[i];
217		}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	"/boot/grub/grub.conf",    /* defaultConfig */	.findConfig = grubFindConfig,
221	grubKeywords,    /* keywords */	.keywords = grubKeywords,
222	1,    /* defaultIsIndex */	.defaultIsIndex = 1,
223	1,    /* defaultSupportSaved */	.defaultSupportSaved = 1,
224	LT_TITLE,    /* entrySeparator */	.entryStart = LT_TITLE,
225	1,    /* needsBootPrefix */	.needsBootPrefix = 1,
226	0,    /* argsInQuotes */	.mbHyperFirst = 1,
227	0,    /* maxTitleLength */	.mbInitRdIsModule = 1,
228	0,                                      /* titleBracketed */	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230		};
231
232		struct keywordTypes grub2Keywords[] = {
233		{"menuentry", LT_MENUENTRY, ' '},
234		{"}", LT_ENTRY_END, ' '},
235		{"echo", LT_ECHO, ' '},
236		{"set", LT_SET_VARIABLE, ' ', '='},
237		{"root", LT_BOOTROOT, ' '},
238		{"default", LT_DEFAULT, ' '},
239		{"fallback", LT_FALLBACK, ' '},
240		{"linux", LT_KERNEL, ' '},
241		{"linuxefi", LT_KERNEL_EFI, ' '},
242		{"linux16", LT_KERNEL_16, ' '},
243		{"initrd", LT_INITRD, ' ', ' '},
244		{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245		{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{NULL, 0, 0},
250		};
251
252		const char *grub2FindConfig(struct configFileInfo *cfi)
253		{
254		static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256		"/boot/grub/grub.cfg",
257		"/etc/grub2-efi.cfg",
258		"/etc/grub2.cfg",
259		"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289		dbgPrintf("found\n");
290		return grub_cfg;
291		}
292
293		dbgPrintf("not found\n");
294		return configFiles[i];
295		}
296
297		/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298		static char *grub2GetEnv(struct configFileInfo *info, char *name)
299		{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396		}
397
398		int sizeOfSingleLine(struct singleLine *line)
399		{
400		int count = 0;
401
402		for (int i = 0; i < line->numElements; i++) {
403		int indentSize = 0;
404
405		count = count + strlen(line->elements[i].item);
406
407		indentSize = strlen(line->elements[i].indent);
408		if (indentSize > 0)
409		count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415		/* room for trailing terminator */
416		count = count + 1;
417
418		return count;
419		}
420
421		static int isquote(char q)
422		{
423		if (q == '\'' || q == '\"')
424		return 1;
425		return 0;
426		}
427
428		static int iskernel(enum lineType_e type)
429		{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432		}
433
434		static int isinitrd(enum lineType_e type)
435		{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438		}
439
440		char *grub2ExtractTitle(struct singleLine *line)
441		{
442		char *current;
443		char *current_indent;
444		int current_len;
445		int current_indent_len;
446		int i;
447
448		/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452		i = 1;
453		current = line->elements[i].item;
454		current_len = strlen(current);
455
456		/* if second word is quoted, strip the quotes and return single word */
457		if (isquote(*current) && isquote(current[current_len - 1])) {
458		char *tmp;
459
460		tmp = strdup(current + 1);
461		if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496		}
497		return result;
498		}
499
500		struct configFileInfo grub2ConfigType = {
501		.findConfig = grub2FindConfig,
502		.getEnv = grub2GetEnv,
503		.setEnv = grub2SetEnv,
504		.keywords = grub2Keywords,
505		.defaultIsIndex = 1,
506		.defaultSupportSaved = 1,
507		.defaultIsVariable = 1,
508		.entryStart = LT_MENUENTRY,
509		.entryEnd = LT_ENTRY_END,
510		.titlePosition = 1,
511		.needsBootPrefix = 1,
512		.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566		};
567
568		struct keywordTypes eliloKeywords[] = {
569		{"label", LT_TITLE, '='},
570		{"root", LT_ROOT, '='},
571		{"default", LT_DEFAULT, '='},
572		{"image", LT_KERNEL, '='},
573		{"initrd", LT_INITRD, '='},
574		{"append", LT_KERNELARGS, '='},
575		{"vmm", LT_HYPER, '='},
576		{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598		};
599
600		struct keywordTypes extlinuxKeywords[] = {
601		{"label", LT_TITLE, ' '},
602		{"root", LT_ROOT, ' '},
603		{"default", LT_DEFAULT, ' '},
604		{"kernel", LT_KERNEL, ' '},
605		{"initrd", LT_INITRD, ' ', ','},
606		{"append", LT_KERNELARGS, ' '},
607		{"prompt", LT_UNKNOWN, ' '},
608		{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613		int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	"/boot/efi/EFI/redhat/elilo.conf",    /* defaultConfig */	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	liloKeywords,    /* keywords */	.keywords = eliloKeywords,
617	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
618	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
619	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
620	1,                    /* needsBootPrefix */	.mbConcatArgs = 1,
621	1,    /* argsInQuotes */	.titlePosition = 1,
	0,    /* maxTitleLength */
	0,                                      /* titleBracketed */
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	"/etc/lilo.conf",    /* defaultConfig */	.defaultConfig = "/etc/lilo.conf",
626	liloKeywords,    /* keywords */	.keywords = liloKeywords,
627	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
628	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
629	LT_KERNEL,    /* entrySeparator */	.maxTitleLength = 15,
630	0,    /* needsBootPrefix */	.titlePosition = 1,
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	"/etc/yaboot.conf",    /* defaultConfig */	.defaultConfig = "/etc/yaboot.conf",
635	yabootKeywords,    /* keywords */	.keywords = yabootKeywords,
636	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
637	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
638	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
639	1,    /* needsBootPrefix */	.maxTitleLength = 15,
640	1,    /* argsInQuotes */	.mbAllowExtraInitRds = 1,
641	15,    /* maxTitleLength */	.titlePosition = 1,
	0,                                      /* titleBracketed */
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	"/etc/silo.conf",    /* defaultConfig */	.defaultConfig = "/etc/silo.conf",
646	siloKeywords,    /* keywords */	.keywords = siloKeywords,
647	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
648	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
649	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
650	1,    /* needsBootPrefix */	.maxTitleLength = 15,
651	1,    /* argsInQuotes */	.titlePosition = 1,
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	"/etc/zipl.conf",    /* defaultConfig */	.defaultConfig = "/etc/zipl.conf",
656	ziplKeywords,    /* keywords */	.keywords = ziplKeywords,
657	0,    /* defaultIsIndex */	.entryStart = LT_TITLE,
658	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
659	LT_TITLE,    /* entrySeparator */	.titleBracketed = 1,
	0,    /* needsBootPrefix */
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	1,                                      /* titleBracketed */
660	};	};
661
662	struct grubConfig {	struct configFileInfo extlinuxConfigType = {
663	struct singleLine * theLines;	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	struct singleEntry * entries;	.keywords = extlinuxKeywords,
665	char * primaryIndent;	.caseInsensitive = 1,
666	char * secondaryIndent;	.entryStart = LT_TITLE,
667	int defaultImage;    /* -1 if none specified -- this value is	.needsBootPrefix = 1,
668	* written out, overriding original */	.maxTitleLength = 255,
669	int fallbackImage;    /* just like defaultImage */	.mbAllowExtraInitRds = 1,
670	int flags;	.defaultIsUnquoted = 1,
671	struct configFileInfo * cfi;	.titlePosition = 1,
672	};	};
673
674		struct grubConfig {
675		struct singleLine *theLines;
676		struct singleEntry *entries;
677		char *primaryIndent;
678		char *secondaryIndent;
679		int defaultImage; /* -1 if none specified -- this value is
680		* written out, overriding original */
681		int fallbackImage; /* just like defaultImage */
682		int flags;
683		struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686		};
687
688	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	blkid_cache blkid;
	struct singleEntry * findEntryByPath(struct grubConfig * cfg,
	const char * path, const char * prefix,
	int * index);
	static char * strndup(char * from, int len);
	static int readFile(int fd, char ** bufPtr);
	static void lineInit(struct singleLine * line);
	static void lineFree(struct singleLine * line);
	static int lineWrite(FILE * out, struct singleLine * line,
	struct configFileInfo * cfi);
	static int getNextLine(char ** bufPtr, struct singleLine * line,
	struct configFileInfo * cfi);
	static char * getRootSpecifier(char * str);
	static char * strndup(char * from, int len) {
	char * to;
	to = malloc(len + 1);
	strncpy(to, from, len);
	to[len] = '\0';
689
690	return to;	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	}	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692		const char *path, const char *prefix,
693		int *index);
694		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695		int *index);
696		static int readFile(int fd, char **bufPtr);
697		static void lineInit(struct singleLine *line);
698		struct singleLine *lineDup(struct singleLine *line);
699		static void lineFree(struct singleLine *line);
700		static int lineWrite(FILE * out, struct singleLine *line,
701		struct configFileInfo *cfi);
702		static int getNextLine(char **bufPtr, struct singleLine *line,
703		struct configFileInfo *cfi);
704		static char *getRootSpecifier(char *str);
705		static void requote(struct singleLine *line, struct configFileInfo *cfi);
706		static void insertElement(struct singleLine *line,
707		const char *item, int insertHere,
708		struct configFileInfo *cfi);
709		static void removeElement(struct singleLine *line, int removeHere);
710		static struct keywordTypes *getKeywordByType(enum lineType_e type,
711		struct configFileInfo *cfi);
712		static enum lineType_e getTypeByKeyword(char *keyword,
713		struct configFileInfo *cfi);
714		static struct singleLine *getLineByType(enum lineType_e type,
715		struct singleLine *line);
716		static int checkForExtLinux(struct grubConfig *config);
717		struct singleLine *addLineTmpl(struct singleEntry *entry,
718		struct singleLine *tmplLine,
719		struct singleLine *prevLine,
720		const char *val, struct configFileInfo *cfi);
721		struct singleLine *addLine(struct singleEntry *entry,
722		struct configFileInfo *cfi,
723		enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747	va_end(args);
748	va_start(args, format);	va_end(args);
749		va_start(args, format);
750	buf = malloc(size);
751	if (buf == NULL)	buf = malloc(size);
752	return NULL;	if (buf == NULL)
753	vsnprintf(buf, size, format, args);	return NULL;
754	va_end (args);	vsnprintf(buf, size, format, args);
755		va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static int isBracketedTitle(struct singleLine * line) {	static inline int
761	if ((*line->elements[0].item == '[') && (line->numElements == 1)) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	int len = strlen(line->elements[0].item);	{
763	if (*(line->elements[0].item + len - 1) == ']') {	int kwl = strlen(kw->key);
764	/* FIXME: this is a hack... */	int ll = strlen(label);
765	if (strcmp(line->elements[0].item, "[defaultboot]")) {	int rc;
766	return 1;	int (*snc)(const char *s1, const char *s2, size_t n) =
767	}	case_insensitive ? strncasecmp : strncmp;
768	}	int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return 0;	return 0;
785	}	}
786
787	/* figure out if this is a entry separator */	static enum lineType_e preferredLineType(enum lineType_e type,
788	static int isEntrySeparator(struct singleLine * line,	struct configFileInfo *cfi)
789	struct configFileInfo * cfi) {	{
790	if (line->type == LT_WHITESPACE)	if (isEfi && cfi == &grub2ConfigType) {
791	return 0;	switch (type) {
792	if (line->type == cfi->entrySeparator)	case LT_KERNEL:
793	return 1;	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	if (line->type == LT_OTHER)	case LT_INITRD:
795	return 1;	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	if (cfi->titleBracketed && isBracketedTitle(line)) {	default:
797	return 1;	return type;
798	}	}
799	return 0;	#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812	}	}
813
814	/* extract the title from within brackets (for zipl) */	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	static char * extractTitle(struct singleLine * line) {	struct configFileInfo *cfi)
816	/* bracketed title... let's extract it (leaks a byte) */	{
817	char * title;	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	title = strdup(line->elements[0].item);	if (kw->type == type)
819	title++;	return kw;
820	*(title + strlen(title) - 1) = '\0';	}
821	return title;	return NULL;
822	}	}
	static int readFile(int fd, char ** bufPtr) {
	int alloced = 0, size = 0, i = 0;
	char * buf = NULL;
	do {
	size += i;
	if ((size + 1024) > alloced) {
	alloced += 4096;
	buf = realloc(buf, alloced + 1);
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
823
824	buf = realloc(buf, size + 2);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	if (size == 0)	{
826	buf[size++] = '\n';	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	else	if (kt)
828	if (buf[size - 1] != '\n')	return kt->key;
829	buf[size++] = '\n';	return "unknown";
830	buf[size] = '\0';	}
831
832	*bufPtr = buf;	static char *getpathbyspec(char *device)
833		{
834		if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return 0;	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static void lineInit(struct singleLine * line) {	static char *getuuidbydev(char *device)
841	line->indent = NULL;	{
842	line->elements = NULL;	if (!blkid)
843	line->numElements = 0;	blkid_get_cache(&blkid, NULL);
844	line->next = NULL;
845		return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static void lineFree(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
849	int i;	struct configFileInfo *cfi)
850		{
851		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852		if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853		return kw->type;
854		}
855		return LT_UNKNOWN;
856		}
857
858	if (line->indent) free(line->indent);	static struct singleLine *getLineByType(enum lineType_e type,
859		struct singleLine *line)
860		{
861		dbgPrintf("getLineByType(%d): ", type);
862		for (; line; line = line->next) {
863		dbgPrintf("%d:%s ", line->type,
864		line->numElements ? line->elements[0].
865		item : "(empty)");
866		if (line->type & type)
867		break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871		}
872
873	for (i = 0; i < line->numElements; i++) {	static int isBracketedTitle(struct singleLine *line)
874	free(line->elements[i].item);	{
875	free(line->elements[i].indent);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	}	int len = strlen(line->elements[0].item);
877		if (*(line->elements[0].item + len - 1) == ']') {
878		/* FIXME: this is a hack... */
879		if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885		}
886
887	if (line->elements) free(line->elements);	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	lineInit(line);	{
889		return line->type == cfi->entryStart || line->type == LT_OTHER ||
890		(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	static int lineWrite(FILE * out, struct singleLine * line,	/* extract the title from within brackets (for zipl) */
894	struct configFileInfo * cfi) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	int i;	{
896		/* bracketed title... let's extract it */
897		char *title = NULL;
898		if (line->type == LT_TITLE) {
899		char *tmp = line->elements[cfg->cfi->titlePosition].item;
900		if (cfg->cfi->titleBracketed) {
901		tmp++;
902		title = strdup(tmp);
903		*(title + strlen(title) - 1) = '\0';
904		} else {
905		title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912		}
913
914	if (fprintf(out, "%s", line->indent) == -1) return -1;	static int readFile(int fd, char **bufPtr)
915		{
916		int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919		do {
920		size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	for (i = 0; i < line->numElements; i++) {	if (i < 0) {
928	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	fprintf(stderr, _("error reading input: %s\n"),
929	if (fputc('"', out) == EOF) return -1;	strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	buf = realloc(buf, size + 2);
935	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	if (size == 0)
936	}	buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	*bufPtr = buf;
	if (fputc('"', out) == EOF) return -1;
942
943	if (fprintf(out, "\n") == -1) return -1;	return 0;
944		}
945
946	return 0;	static void lineInit(struct singleLine *line)
947		{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	/* we've guaranteed that the buffer ends w/ \n\0 */	struct singleLine *lineDup(struct singleLine *line)
956	static int getNextLine(char ** bufPtr, struct singleLine * line,	{
957	struct configFileInfo * cfi) {	struct singleLine *newLine = malloc(sizeof(*newLine));
958	char * end;
959	char * start = *bufPtr;	newLine->indent = strdup(line->indent);
960	char * chptr;	newLine->next = NULL;
961	int elementsAlloced = 0;	newLine->type = line->type;
962	struct lineElement * element;	newLine->numElements = line->numElements;
963	struct keywordTypes * keywords = cfi->keywords;	newLine->elements = malloc(sizeof(*newLine->elements) *
964	int first = 1;	newLine->numElements);
965	int i;
966		for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971		return newLine;
972		}
973
974	lineFree(line);	static void lineFree(struct singleLine *line)
975		{
976		if (line->indent)
977		free(line->indent);
978
979	end = strchr(start, '\n');	for (int i = 0; i < line->numElements; i++) {
980	*end = '\0';	free(line->elements[i].item);
981	*bufPtr = end + 1;	free(line->elements[i].indent);
982		}
983
984	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987		}
988
989	line->indent = strndup(start, chptr - start);	static int lineWrite(FILE * out, struct singleLine *line,
990	start = chptr;	struct configFileInfo *cfi)
991		{
992		if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995		for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	while (start < end) {	continue;
1023	/* we know !isspace(*start) */	}
1024
1025	if (elementsAlloced == line->numElements) {	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026	elementsAlloced += 5;	if (fputc('"', out) == EOF)
1027	line->elements = realloc(line->elements,	return -1;
1028	sizeof(*line->elements) * elementsAlloced);
1029	}	if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	element = line->elements + line->numElements;	if (fprintf(out, "\n") == -1)
1041		return -1;
1042
1043	chptr = start;	return 0;
1044	while (*chptr && !isspace(*chptr)) {	}
1045	if (first && *chptr == '=') break;
1046	chptr++;	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	}	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	element->item = strndup(start, chptr - start);	struct configFileInfo *cfi)
1049	start = chptr;	{
1050		char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057		lineFree(line);
1058
1059		end = strchr(start, '\n');
1060		*end = '\0';
1061		*bufPtr = end + 1;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	for (i = 0; keywords[i].key; i++)	sizeof(*line->elements) *
1075	if (!strcmp(line->elements[0].item, keywords[i].key)) break;	elementsAlloced);
1076		}
	if (keywords[i].key) {
	line->type = keywords[i].type;
	} else {
	line->type = LT_UNKNOWN;
	/* zipl does [title] instead of something reasonable like all
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115		if (line->type == LT_UNKNOWN) {
1116		/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122		/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150		line->type = LT_WHITESPACE;
1151		line->numElements = 0;
1152		}
1153		} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156		kw = getKeywordByType(line->type, cfi);
1157
1158		/* space isn't the only separator, we need to split
1159		* elements up more
1160		*/
1161		if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186		for (int j = line->numElements; j > i;
1187		j--) {
1188		line->elements[j +
1189		numNewElements] =
1190		line->elements[j];
1191		}
1192		line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248		}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (!sawEntry && line->numElements) {	}
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntrySeparator(line, cfi)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1325
1326	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	entry->multiboot = 0;	sawEntry = 1;
1328	entry->lines = NULL;	if (!entry) {
1329	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	if (line->type == LT_DEFAULT && line->numElements == 2) {	entry->next = malloc(sizeof(*entry));
1333	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	entry = entry->next;
1334	defaultLine = line;	}
1335	} else if (line->type == LT_MBMODULE) {
1336	entry->multiboot = 1;	entry->skip = 0;
1337	} else if (line->type == LT_FALLBACK && line->numElements == 2) {	entry->multiboot = 0;
1338	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);	entry->lines = NULL;
1339	if (*end) cfg->fallbackImage = -1;	entry->next = NULL;
1340	} else if (line->type == LT_TITLE && line->numElements > 1) {	}
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1341
1342	for (i = 1; i < line->numElements; i++) {	if (line->type == LT_SET_VARIABLE) {
1343	strcat(buf, line->elements[i].item);	dbgPrintf("found 'set' command (%d elements): ",
1344	free(line->elements[i].item);	line->numElements);
1345		dbgPrintf("%s", line->indent);
1346		for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349		dbgPrintf("\n");
1350		struct keywordTypes *kwType =
1351		getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353		&& !strcmp(line->elements[1].item, kwType->key)
1354		&& !is_special_grub2_variable(
1355		line->elements[2].item)) {
1356		dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358		defaultLine = line;
1359		}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368		} else if (line->type == LT_MBMODULE) {
1369		/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386		} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389		} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408		for (int i = 1; i < line->numElements; i++) {
1409		strcat(buf, line->elements[i].item);
1410		free(line->elements[i].item);
1411
1412		if ((i + 1) != line->numElements) {
1413		strcat(buf, line->elements[i].indent);
1414		free(line->elements[i].indent);
1415		}
1416		}
1417
1418		line->elements[1].indent =
1419		line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437		/* allocate mem for extra flags. */
1438		extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455		len = strlen(title);
1456		if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465		/* get extras */
1466		int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475		if (!strcmp
1476		(line->elements[i].item, "menuentry"))
1477		continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487		len = strlen(line->elements[i].item);
1488
1489		if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493		/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510		if (isquote(*line->elements[1].item))
1511		memmove(line->elements[1].item,
1512		line->elements[1].item + 1,
1513		strlen(line->elements[1].item +
1514		1) + 1);
1515
1516		last = line->numElements - 1;
1517		len = strlen(line->elements[last].item) - 1;
1518		if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520		}
1521		}
1522
1523	if ((i + 1) != line->numElements) {	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	strcat(buf, line->elements[i].indent);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	free(line->elements[i].indent);	defaultLine = line;
1526	}	}
	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (*line->elements[1].item == '"')
	memcpy(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (line->elements[last].item[len] == '"')
	line->elements[last].item[len] = '\0';
	}
1527
1528	}	/* If we find a generic config option which should live at the
1529		top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	/* If we find a generic config option which should live at the	/* If a second line of whitespace happens after a generic
1547	top of the file, move it there. Old versions of grubby were	* option which was moved, drop it. */
1548	probably responsible for putting new images in the wrong	if (movedLine && line->type == LT_WHITESPACE
1549	place in front of it anyway. */	&& last->type == LT_WHITESPACE) {
1550	if (sawEntry && line->type == LT_GENERIC) {	lineFree(line);
1551	struct singleLine **l = &cfg->theLines;	free(line);
1552	struct singleLine **last_nonws = &cfg->theLines;	movedLine = 0;
1553	while (*l) {	continue;
1554	if ((*l)->type != LT_WHITESPACE)	}
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
1555	movedLine = 0;	movedLine = 0;
1556	continue;
1557		if (sawEntry) {
1558		if (!entry->lines)
1559		entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565		/* we could have seen this outside of an entry... if
1566		* so, we ignore it like any other line we don't grok
1567		*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579		last = line;
1580	}	}
	movedLine = 0;
1581
1582	if (sawEntry) {	free(incoming);
1583	if (!entry->lines)
1584	entry->lines = line;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	else	if (defaultLine) {
1586	last->next = line;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692	} else {	} else {
1693	if (!cfg->theLines)	cfg->defaultImage = FIRST_ENTRY_INDEX;
	cfg->theLines = line;
	else {
	last->next = line;
	}
1694	}	}
1695
1696	last = line;	return cfg;
1697	}	}
	free(incoming);
1698
1699	if (defaultLine) {	static void writeDefault(FILE * out, char *indent,
1700	if (cfi->defaultSupportSaved &&	char *separator, struct grubConfig *cfg)
1701	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	{
1702	cfg->defaultImage = DEFAULT_SAVED;	struct singleEntry *entry;
1703	} else if (cfi->defaultIsIndex) {	struct singleLine *line;
1704	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);	int i;
1705	if (*end) cfg->defaultImage = -1;
1706	} else if (defaultLine->numElements >= 2) {	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	i = 0;	return;
1708	while ((entry = findEntryByIndex(cfg, i))) {
1709	for (line = entry->lines; line; line = line->next)	if (cfg->defaultImage == DEFAULT_SAVED)
1710	if (line->type == LT_TITLE) break;	fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712	if (!cfi->titleBracketed) {	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713	if (line && (line->numElements >= 2) &&	if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714	!strcmp(defaultLine->elements[1].item,	char *title;
1715	line->elements[1].item)) break;	entry = findEntryByIndex(cfg, cfg->defaultImage);
1716	} else if (line) {	line = getLineByType(LT_MENUENTRY, entry->lines);
1717	if (!strcmp(defaultLine->elements[1].item,	if (!line)
1718	extractTitle(line))) break;	line = getLineByType(LT_TITLE, entry->lines);
1719	}	if (line) {
1720	i++;	title = extractTitle(cfg, line);
1721	}	if (title)
1722		cfg->cfi->setEnv(cfg->cfi,
1723		"saved_entry", title);
1724		}
1725		}
1726		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1727		if (cfg->cfi->defaultIsIndex) {
1728		if (cfg->cfi->defaultIsVariable) {
1729		fprintf(out, "%sset default=\"%d\"\n", indent,
1730		cfg->defaultImage);
1731		} else {
1732		fprintf(out, "%sdefault%s%d\n", indent,
1733		separator, cfg->defaultImage);
1734		}
1735		} else {
1736		int image = cfg->defaultImage;
1737
1738	if (entry) cfg->defaultImage = i;	entry = cfg->entries;
1739		while (entry && entry->skip)
1740		entry = entry->next;
1741
1742		i = 0;
1743		while (entry && i < image) {
1744		entry = entry->next;
1745
1746		while (entry && entry->skip)
1747		entry = entry->next;
1748		i++;
1749		}
1750
1751		if (!entry)
1752		return;
1753
1754		line = getLineByType(LT_TITLE, entry->lines);
1755
1756		if (line && line->numElements >= 2)
1757		fprintf(out, "%sdefault%s%s\n", indent,
1758		separator, line->elements[1].item);
1759		else if (line && (line->numElements == 1)
1760		&& cfg->cfi->titleBracketed) {
1761		char *title = extractTitle(cfg, line);
1762		if (title) {
1763		fprintf(out, "%sdefault%s%s\n", indent,
1764		separator, title);
1765		free(title);
1766		}
1767		}
1768		}
1769	}	}
	}
	return cfg;
1770	}	}
1771
1772	static void writeDefault(FILE * out, char * indent,	static int writeConfig(struct grubConfig *cfg, char *outName,
1773	char * separator, struct grubConfig * cfg) {	const char *prefix)
1774	struct singleEntry * entry;	{
1775	struct singleLine * line;	FILE *out;
1776	int i;	struct singleLine *line;
1777		struct singleEntry *entry;
1778		char *tmpOutName;
1779		int needs = MAIN_DEFAULT;
1780		struct stat sb;
1781		int i;
1782
1783		if (!strcmp(outName, "-")) {
1784		out = stdout;
1785		tmpOutName = NULL;
1786		} else {
1787		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1788		char *buf;
1789		int len = 256;
1790		int rc;
1791
1792		/* most likely the symlink is relative, so change our
1793		directory to the dir of the symlink */
1794		char *dir = strdupa(outName);
1795		rc = chdir(dirname(dir));
1796		do {
1797		buf = alloca(len + 1);
1798		rc = readlink(basename(outName), buf, len);
1799		if (rc == len)
1800		len += 256;
1801		} while (rc == len);
1802
1803		if (rc < 0) {
1804		fprintf(stderr,
1805		_
1806		("grubby: error readlink link %s: %s\n"),
1807		outName, strerror(errno));
1808		return 1;
1809		}
1810
1811	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	outName = buf;
1812		outName[rc] = '\0';
1813		}
1814
1815	if (cfg->defaultImage == DEFAULT_SAVED)	tmpOutName = alloca(strlen(outName) + 2);
1816	fprintf(out, "%sdefault%ssaved\n", indent, separator);	sprintf(tmpOutName, "%s-", outName);
1817	else if (cfg->defaultImage > -1) {	out = fopen(tmpOutName, "w");
1818	if (cfg->cfi->defaultIsIndex) {	if (!out) {
1819	fprintf(out, "%sdefault%s%d\n", indent, separator,	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1820	cfg->defaultImage);	tmpOutName, strerror(errno));
1821	} else {	return 1;
1822	int image = cfg->defaultImage;	}
1823
1824	entry = cfg->entries;	if (!stat(outName, &sb)) {
1825	while (entry && entry->skip) entry = entry->next;	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1826		fprintf(stderr,
1827		_
1828		("grubby: error setting perms on %s: %s\n"),
1829		tmpOutName, strerror(errno));
1830		fclose(out);
1831		unlink(tmpOutName);
1832		return 1;
1833		}
1834		}
1835		}
1836
1837	i = 0;	line = cfg->theLines;
1838	while (entry && i < image) {	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1839	entry = entry->next;	while (line) {
1840		if (line->type == LT_SET_VARIABLE && defaultKw &&
1841		line->numElements == 3 &&
1842		!strcmp(line->elements[1].item, defaultKw->key) &&
1843		!is_special_grub2_variable(line->elements[2].item)) {
1844		writeDefault(out, line->indent,
1845		line->elements[0].indent, cfg);
1846		needs &= ~MAIN_DEFAULT;
1847		} else if (line->type == LT_DEFAULT) {
1848		writeDefault(out, line->indent,
1849		line->elements[0].indent, cfg);
1850		needs &= ~MAIN_DEFAULT;
1851		} else if (line->type == LT_FALLBACK) {
1852		if (cfg->fallbackImage > -1)
1853		fprintf(out, "%s%s%s%d\n", line->indent,
1854		line->elements[0].item,
1855		line->elements[0].indent,
1856		cfg->fallbackImage);
1857		} else {
1858		if (lineWrite(out, line, cfg->cfi) == -1) {
1859		fprintf(stderr,
1860		_("grubby: error writing %s: %s\n"),
1861		tmpOutName, strerror(errno));
1862		fclose(out);
1863		unlink(tmpOutName);
1864		return 1;
1865		}
1866		}
1867
1868	while (entry && entry->skip) entry = entry->next;	line = line->next;
1869	i++;	}
	}
1870
1871	if (!entry) return;	if (needs & MAIN_DEFAULT) {
1872		writeDefault(out, cfg->primaryIndent, "=", cfg);
1873		needs &= ~MAIN_DEFAULT;
1874		}
1875
1876	line = entry->lines;	i = 0;
1877	while (line && line->type != LT_TITLE) line = line->next;	while ((entry = findEntryByIndex(cfg, i++))) {
1878		if (entry->skip)
1879		continue;
1880
1881		line = entry->lines;
1882		while (line) {
1883		if (lineWrite(out, line, cfg->cfi) == -1) {
1884		fprintf(stderr,
1885		_("grubby: error writing %s: %s\n"),
1886		tmpOutName, strerror(errno));
1887		fclose(out);
1888		unlink(tmpOutName);
1889		return 1;
1890		}
1891		line = line->next;
1892		}
1893		}
1894
1895	if (line && line->numElements >= 2)	if (tmpOutName) {
1896	fprintf(out, "%sdefault%s%s\n", indent, separator,	if (rename(tmpOutName, outName)) {
1897	line->elements[1].item);	fprintf(stderr,
1898	else if (line && (line->numElements == 1) &&	_("grubby: error moving %s to %s: %s\n"),
1899	cfg->cfi->titleBracketed) {	tmpOutName, outName, strerror(errno));
1900	fprintf(out, "%sdefault%s%s\n", indent, separator,	unlink(outName);
1901	extractTitle(line));	return 1;
1902	}	}
1903	}	}
1904	}
1905		return 0;
1906	}	}
1907
1908	static int writeConfig(struct grubConfig * cfg, char * outName,	static int numEntries(struct grubConfig *cfg)
1909	const char * prefix) {	{
1910	FILE * out;	int i = 0;
1911	struct singleLine * line;	struct singleEntry *entry;
1912	struct singleEntry * entry;
1913	char * tmpOutName;	entry = cfg->entries;
1914	int needs = MAIN_DEFAULT;	while (entry) {
1915	struct stat sb;	if (!entry->skip)
1916	int i;	i++;
1917		entry = entry->next;
1918	if (!strcmp(outName, "-")) {	}
1919	out = stdout;	return i;
1920	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;
	}
	}
	}
1921
1922	line = cfg->theLines;	static char *findDiskForRoot()
1923	while (line) {	{
1924	if (line->type == LT_DEFAULT) {	int fd;
1925	writeDefault(out, line->indent, line->elements[0].indent, cfg);	char buf[65536];
1926	needs &= ~MAIN_DEFAULT;	char *devname;
1927	} else if (line->type == LT_FALLBACK) {	char *chptr;
1928	if (cfg->fallbackImage > -1)	int rc;
1929	fprintf(out, "%s%s%s%d\n", line->indent,
1930	line->elements[0].item, line->elements[0].indent,	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1931	cfg->fallbackImage);	fprintf(stderr, "grubby: failed to open %s: %s\n",
1932	} else {	_PATH_MOUNTED, strerror(errno));
1933	if (lineWrite(out, line, cfg->cfi) == -1) {	return NULL;
1934	fprintf(stderr, _("grubby: error writing %s: %s\n"),	}
1935	tmpOutName, strerror(errno));
1936	fclose(out);	rc = read(fd, buf, sizeof(buf) - 1);
1937	unlink(tmpOutName);	if (rc <= 0) {
1938	return 1;	fprintf(stderr, "grubby: failed to read %s: %s\n",
1939	}	_PATH_MOUNTED, strerror(errno));
1940		close(fd);
1941		return NULL;
1942	}	}
1943		close(fd);
1944		buf[rc] = '\0';
1945		chptr = buf;
1946
1947	line = line->next;	char *foundanswer = NULL;
	}
1948
1949	if (needs & MAIN_DEFAULT) {	while (chptr && chptr != buf + rc) {
1950	writeDefault(out, cfg->primaryIndent, "=", cfg);	devname = chptr;
	needs &= ~MAIN_DEFAULT;
	}
1951
1952	i = 0;	/*
1953	while ((entry = findEntryByIndex(cfg, i++))) {	* The first column of a mtab entry is the device, but if the
1954	if (entry->skip) continue;	* entry is a special device it won't start with /, so move
1955		* on to the next line.
1956		*/
1957		if (*devname != '/') {
1958		chptr = strchr(chptr, '\n');
1959		if (chptr)
1960		chptr++;
1961		continue;
1962		}
1963
1964	line = entry->lines;	/* Seek to the next space */
1965	while (line) {	chptr = strchr(chptr, ' ');
1966	if (lineWrite(out, line, cfg->cfi) == -1) {	if (!chptr) {
1967	fprintf(stderr, _("grubby: error writing %s: %s\n"),	fprintf(stderr, "grubby: error parsing %s: %s\n",
1968	tmpOutName, strerror(errno));	_PATH_MOUNTED, strerror(errno));
1969	fclose(out);	return NULL;
1970	unlink(tmpOutName);	}
	return 1;
	}
	line = line->next;
	}
	}
1971
1972	if (tmpOutName) {	/*
1973	if (rename(tmpOutName, outName)) {	* The second column of a mtab entry is the mount point, we
1974	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	* are looking for '/' obviously.
1975	tmpOutName, outName, strerror(errno));	*/
1976	unlink(outName);	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1977	return 1;	/* remember the last / entry in mtab */
1978		foundanswer = devname;
1979		}
1980
1981		/* Next line */
1982		chptr = strchr(chptr, '\n');
1983		if (chptr)
1984		chptr++;
1985	}	}
	}
1986
1987	return 0;	/* Return the last / entry found */
1988	}	if (foundanswer) {
1989		chptr = strchr(foundanswer, ' ');
1990		*chptr = '\0';
1991		return strdup(foundanswer);
1992		}
1993
1994	static int numEntries(struct grubConfig *cfg) {	return NULL;
	int i = 0;
	struct singleEntry * entry;
	entry = cfg->entries;
	while (entry) {
	if (!entry->skip)
	i++;
	entry = entry->next;
	}
	return i;
1995	}	}
1996
1997	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	void printEntry(struct singleEntry *entry, FILE * f)
1998	int skipRemoved, int flags) {	{
1999	struct singleLine * line;	int i;
2000	char * fullName;	struct singleLine *line;
	int i;
	struct stat sb, sb2;
	char * dev;
	char * end;
	char * rootspec;
	line = entry->lines;
	while (line && line->type != LT_KERNEL) line = line->next;
	if (!line) return 0;
	if (skipRemoved && entry->skip) return 0;
	if (line->numElements < 2) return 0;
	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;
	fullName = alloca(strlen(bootPrefix) +
	strlen(line->elements[1].item) + 1);
	rootspec = getRootSpecifier(line->elements[1].item);
	sprintf(fullName, "%s%s", bootPrefix,
	line->elements[1].item + ((rootspec != 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;
2001
2002	if (line && line->numElements >= 2) {	for (line = entry->lines; line; line = line->next) {
2003	dev = line->elements[1].item;	log_message(f, "DBG: %s", line->indent);
2004	} else {	for (i = 0; i < line->numElements; i++) {
2005	int type;	/* Need to handle this, because we strip the quotes from
2006	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS */	* menuentry when read it. */
2007	line = entry->lines;	if (line->type == LT_MENUENTRY && i == 1) {
2008		if (!isquote(*line->elements[i].item))
2009	type = ((entry->multiboot) ? LT_MBMODULE : LT_KERNELARGS);	log_message(f, "\'%s\'",
2010		line->elements[i].item);
2011	while (line && line->type != type) line = line->next;	else
2012		log_message(f, "%s",
2013	/* failed to find one */	line->elements[i].item);
2014	if (!line) return 0;	log_message(f, "%s", line->elements[i].indent);
2015
2016	for (i = 1; i < line->numElements; i++)	continue;
2017	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	}
2018	if (i < line->numElements)
2019	dev = line->elements[i].item + 5;	log_message(f, "%s%s",
2020	else {	line->elements[i].item,
2021	/* it failed too...  can't find root= */	line->elements[i].indent);
2022	return 0;	}
2023	}	log_message(f, "\n");
2024	}	}
2025	}	}
	if (!strncmp(dev, "LABEL=", 6)) {
	dev += 6;
	/* check which device has this label */
	dev = get_spec_by_volume_label(dev, &i, &i);
	if (!dev) return 0;
	}
2026
2027	if (*dev == '/') {	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2028	if (stat(dev, &sb))	...)
2029	return 0;	{
2030	} else {	static int once;
2031	sb.st_rdev = strtol(dev, &end, 16);	va_list argp, argq;
2032	if (*end) return 0;
2033	}	va_start(argp, fmt);
2034	stat("/", &sb2);
2035		va_copy(argq, argp);
2036		if (!once) {
2037		log_time(NULL);
2038		log_message(NULL, "command line: %s\n", saved_command_line);
2039		}
2040		log_message(NULL, "DBG: Image entry %s: ",
2041		okay ? "succeeded" : "failed");
2042		log_vmessage(NULL, fmt, argq);
2043
2044		printEntry(entry, NULL);
2045		va_end(argq);
2046
2047		if (!debug) {
2048		once = 1;
2049		va_end(argp);
2050		return;
2051		}
2052
2053		if (okay) {
2054		va_end(argp);
2055		return;
2056		}
2057
2058		if (!once)
2059		log_message(stderr, "DBG: command line: %s\n",
2060		saved_command_line);
2061		once = 1;
2062		fprintf(stderr, "DBG: Image entry failed: ");
2063		vfprintf(stderr, fmt, argp);
2064		printEntry(entry, stderr);
2065		va_end(argp);
2066		}
2067
2068	if (sb.st_rdev != sb2.st_dev) return 0;	#define beginswith(s, c) ((s) && (s)[0] == (c))
2069
2070	return 1;	static int endswith(const char *s, char c)
2071	}	{
2072		int slen;
2073
2074	/* returns the first match on or after the one pointed to by index (if index	if (!s || !s[0])
2075	is not NULL) which is not marked as skip */	return 0;
2076	struct singleEntry * findEntryByPath(struct grubConfig * config,	slen = strlen(s) - 1;
	const char * kernel, const char * prefix,
	int * index) {
	struct singleEntry * entry = NULL;
	struct singleLine * line;
	int i;
	char * chptr;
	char * rootspec = NULL;
	enum lineType_e checkType = LT_KERNEL;
2077
2078	if (isdigit(*kernel)) {	return s[slen] == c;
2079	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	}
2080
2081	i = 0;	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2082	indexVars[i] = strtol(kernel, &chptr, 10);	int skipRemoved, int flags)
2083	while (*chptr == ',') {	{
2084	i++;	struct singleLine *line;
2085	kernel = chptr + 1;	char *fullName;
2086	indexVars[i] = strtol(kernel, &chptr, 10);	int i;
2087		char *dev;
2088		char *rootspec;
2089		char *rootdev;
2090
2091		if (skipRemoved && entry->skip) {
2092		notSuitablePrintf(entry, 0, "marked to skip\n");
2093		return 0;
2094		}
2095
2096		line =
2097		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2098		entry->lines);
2099		if (!line) {
2100		notSuitablePrintf(entry, 0, "no line found\n");
2101		return 0;
2102		}
2103		if (line->numElements < 2) {
2104		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2105		line->numElements);
2106		return 0;
2107	}	}
2108
2109	if (*chptr) {	if (flags & GRUBBY_BADIMAGE_OKAY) {
2110	/* can't parse it, bail */	notSuitablePrintf(entry, 1, "\n");
2111	return NULL;	return 1;
2112	}	}
2113
2114	indexVars[i + 1] = -1;	fullName = alloca(strlen(bootPrefix) +
2115		strlen(line->elements[1].item) + 1);
2116	i = 0;	rootspec = getRootSpecifier(line->elements[1].item);
2117	if (index) {	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2118	while (i < *index) i++;	int hasslash = endswith(bootPrefix, '/') ||
2119	if (indexVars[i] == -1) return NULL;	beginswith(line->elements[1].item + rootspec_offset, '/');
2120		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2121		line->elements[1].item + rootspec_offset);
2122		if (access(fullName, R_OK)) {
2123		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2124		return 0;
2125		}
2126		for (i = 2; i < line->numElements; i++)
2127		if (!strncasecmp(line->elements[i].item, "root=", 5))
2128		break;
2129		if (i < line->numElements) {
2130		dev = line->elements[i].item + 5;
2131		} else {
2132		/* look for a lilo style LT_ROOT line */
2133		line = getLineByType(LT_ROOT, entry->lines);
2134
2135		if (line && line->numElements >= 2) {
2136		dev = line->elements[1].item;
2137		} else {
2138		/* didn't succeed in finding a LT_ROOT, let's try
2139		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2140		* for the args, so check that too.
2141		*/
2142		line =
2143		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2144		entry->lines);
2145
2146		/* failed to find one */
2147		if (!line) {
2148		notSuitablePrintf(entry, 0, "no line found\n");
2149		return 0;
2150		}
2151
2152		for (i = 1; i < line->numElements; i++)
2153		if (!strncasecmp
2154		(line->elements[i].item, "root=", 5))
2155		break;
2156		if (i < line->numElements)
2157		dev = line->elements[i].item + 5;
2158		else {
2159		notSuitablePrintf(entry, 0,
2160		"no root= entry found\n");
2161		/* it failed too...  can't find root= */
2162		return 0;
2163		}
2164		}
2165	}	}
2166
2167	entry = findEntryByIndex(config, indexVars[i]);	dev = getpathbyspec(dev);
2168	if (!entry) return NULL;	if (!getpathbyspec(dev)) {
2169		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2170		dev);
2171		return 0;
2172		} else
2173		dev = getpathbyspec(dev);
2174
2175		rootdev = findDiskForRoot();
2176		if (!rootdev) {
2177		notSuitablePrintf(entry, 0, "can't find root device\n");
2178		return 0;
2179		}
2180
2181		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2182		notSuitablePrintf(entry, 0,
2183		"uuid missing: rootdev %s, dev %s\n",
2184		getuuidbydev(rootdev), getuuidbydev(dev));
2185		free(rootdev);
2186		return 0;
2187		}
2188
2189		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2190		notSuitablePrintf(entry, 0,
2191		"uuid mismatch: rootdev %s, dev %s\n",
2192		getuuidbydev(rootdev), getuuidbydev(dev));
2193		free(rootdev);
2194		return 0;
2195		}
2196
2197	line = entry->lines;	free(rootdev);
2198	while (line && line->type != LT_KERNEL)	notSuitablePrintf(entry, 1, "\n");
	line = line->next;
2199
2200	if (!line) return NULL;	return 1;
2201		}
2202
2203	if (index) *index = indexVars[i];	/* returns the first match on or after the one pointed to by index (if index
2204	return entry;	is not NULL) which is not marked as skip */
2205	}	struct singleEntry *findEntryByPath(struct grubConfig *config,
2206		const char *kernel, const char *prefix,
2207	if (!strcmp(kernel, "DEFAULT")) {	int *index)
2208	if (index && *index > config->defaultImage) {	{
2209	entry = NULL;	struct singleEntry *entry = NULL;
2210	} else {	struct singleLine *line;
2211	entry = findEntryByIndex(config, config->defaultImage);	int i;
2212	if (entry && entry->skip)	char *chptr;
2213	entry = NULL;	char *rootspec = NULL;
2214	else if (index)	enum lineType_e checkType = LT_KERNEL;
2215	*index = config->defaultImage;
2216	}	if (isdigit(*kernel)) {
2217	} else if (!strcmp(kernel, "ALL")) {	int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2218	if (index)
2219	i = *index;	i = 0;
2220	else	indexVars[i] = strtol(kernel, &chptr, 10);
2221	i = 0;	while (*chptr == ',') {
2222		i++;
2223		kernel = chptr + 1;
2224		indexVars[i] = strtol(kernel, &chptr, 10);
2225		}
2226
2227	while ((entry = findEntryByIndex(config, i))) {	if (*chptr) {
2228	if (!entry->skip) break;	/* can't parse it, bail */
2229	i++;	return NULL;
2230	}	}
2231
2232	if (entry && index)	indexVars[i + 1] = -1;
	*index = i;
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2233
2234	if (!strncmp(kernel, "TITLE=", 6)) {	i = 0;
2235	prefix = "";	if (index) {
2236	checkType = LT_TITLE;	while (i < *index) {
2237	kernel += 6;	i++;
2238	}	if (indexVars[i] == -1)
2239		return NULL;
2240	while ((entry = findEntryByIndex(config, i))) {	}
2241	line = entry->lines;	}
	while (line && line->type != checkType) line=line->next;
	if (line && line->numElements >= 2 && !entry->skip) {
	rootspec = getRootSpecifier(line->elements[1].item);
	if (!strcmp(line->elements[1].item  +
	((rootspec != NULL) ? strlen(rootspec) : 0),
	kernel + strlen(prefix)))
	break;
	}
	/* have to check multiboot lines too */
	if (entry->multiboot) {
	while (line && line->type != LT_MBMODULE) line = line->next;
	if (line && line->numElements >= 2 && !entry->skip) {
	rootspec = getRootSpecifier(line->elements[1].item);
	if (!strcmp(line->elements[1].item  +
	((rootspec != NULL) ? strlen(rootspec) : 0),
	kernel + strlen(prefix)))
	break;
	}
	}
2242
2243	i++;	entry = findEntryByIndex(config, indexVars[i]);
2244		if (!entry)
2245		return NULL;
2246
2247		line =
2248		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2249		LT_KERNEL_16, entry->lines);
2250		if (!line)
2251		return NULL;
2252
2253		if (index)
2254		*index = indexVars[i];
2255		return entry;
2256		}
2257
2258		if (!strcmp(kernel, "DEFAULT")) {
2259		if (index && *index > config->defaultImage) {
2260		entry = NULL;
2261		} else {
2262		entry = findEntryByIndex(config, config->defaultImage);
2263		if (entry && entry->skip)
2264		entry = NULL;
2265		else if (index)
2266		*index = config->defaultImage;
2267		}
2268		} else if (!strcmp(kernel, "ALL")) {
2269		if (index)
2270		i = *index;
2271		else
2272		i = 0;
2273
2274		while ((entry = findEntryByIndex(config, i))) {
2275		if (!entry->skip)
2276		break;
2277		i++;
2278		}
2279
2280		if (entry && index)
2281		*index = i;
2282		} else {
2283		if (index)
2284		i = *index;
2285		else
2286		i = 0;
2287
2288		if (!strncmp(kernel, "TITLE=", 6)) {
2289		prefix = "";
2290		checkType = LT_TITLE | LT_MENUENTRY;
2291		kernel += 6;
2292		}
2293
2294		for (entry = findEntryByIndex(config, i); entry;
2295		entry = entry->next, i++) {
2296		if (entry->skip)
2297		continue;
2298
2299		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2300		checkType, kernel, entry);
2301
2302		/* check all the lines matching checkType */
2303		for (line = entry->lines; line; line = line->next) {
2304		enum lineType_e ct = checkType;
2305		if (entry->multiboot && checkType == LT_KERNEL)
2306		ct = LT_KERNEL | LT_KERNEL_EFI |
2307		LT_MBMODULE | LT_HYPER |
2308		LT_KERNEL_16;
2309		else if (checkType & LT_KERNEL)
2310		ct = checkType | LT_KERNEL_EFI |
2311		LT_KERNEL_16;
2312		line = getLineByType(ct, line);
2313		if (!line)
2314		break; /* not found in this entry */
2315
2316		if (line && line->type != LT_MENUENTRY &&
2317		line->numElements >= 2) {
2318		rootspec =
2319		getRootSpecifier(line->elements[1].
2320		item);
2321		if (!strcmp
2322		(line->elements[1].item +
2323		((rootspec !=
2324		NULL) ? strlen(rootspec) : 0),
2325		kernel + strlen(prefix)))
2326		break;
2327		}
2328		if (line->type == LT_MENUENTRY &&
2329		!strcmp(line->elements[1].item, kernel))
2330		break;
2331		}
2332
2333		/* make sure this entry has a kernel identifier; this skips
2334		* non-Linux boot entries (could find netbsd etc, though, which is
2335		* unfortunate)
2336		*/
2337		if (line
2338		&& getLineByType(LT_KERNEL | LT_HYPER |
2339		LT_KERNEL_EFI | LT_KERNEL_16,
2340		entry->lines))
2341		break; /* found 'im! */
2342		}
2343
2344		if (index)
2345		*index = i;
2346	}	}
2347
2348	if (index) *index = i;	return entry;
2349	}	}
2350
2351	if (!entry) return NULL;	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2352		int *index)
2353		{
2354		struct singleEntry *entry;
2355		struct singleLine *line;
2356		int i;
2357		char *newtitle;
2358
2359		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2360		if (index && i < *index)
2361		continue;
2362		line = getLineByType(LT_TITLE, entry->lines);
2363		if (!line)
2364		line = getLineByType(LT_MENUENTRY, entry->lines);
2365		if (!line)
2366		continue;
2367		newtitle = grub2ExtractTitle(line);
2368		if (!newtitle)
2369		continue;
2370		if (!strcmp(title, newtitle))
2371		break;
2372		}
2373
2374	/* make sure this entry has a kernel identifier; this skips non-Linux	if (!entry)
2375	boot entries (could find netbsd etc, though, which is unfortunate) */	return NULL;
	line = entry->lines;
	while (line && line->type != LT_KERNEL) line = line->next;
	if (!line) {
	if (!index) index = &i;
	(*index)++;
	return findEntryByPath(config, kernel, prefix, index);
	}
2376
2377	return entry;	if (index)
2378		*index = i;
2379		return entry;
2380	}	}
2381
2382	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2383	struct singleEntry * entry;	{
2384		struct singleEntry *entry;
2385
2386	entry = cfg->entries;	entry = cfg->entries;
2387	while (index && entry) {	while (index && entry) {
2388	entry = entry->next;	entry = entry->next;
2389	index--;	index--;
2390	}	}
2391
2392	return entry;	return entry;
2393	}	}
2394
2395	/* 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 2397  struct singleEntry * findEntryByIndex(st
2397	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2398	* 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,
2399	* bail. */	* bail. */
2400	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2401	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2402	struct singleEntry * entry, * entry2;	{
2403	int index;	struct singleEntry *entry, *entry2;
2404		int index;
2405	if (cfg->defaultImage > -1) {
2406	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2407	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2408	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2409	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2410		if (defTitle) {
2411		int index = 0;
2412		if (isnumber(defTitle)) {
2413		index = atoi(defTitle);
2414		entry = findEntryByIndex(cfg, index);
2415		} else {
2416		entry =
2417		findEntryByTitle(cfg, defTitle,
2418		&index);
2419		}
2420		if (entry
2421		&& suitableImage(entry, prefix, skipRemoved,
2422		flags)) {
2423		cfg->defaultImage = index;
2424		if (indexPtr)
2425		*indexPtr = index;
2426		return entry;
2427		}
2428		}
2429		}
2430		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2431		entry = findEntryByIndex(cfg, cfg->defaultImage);
2432		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2433		if (indexPtr)
2434		*indexPtr = cfg->defaultImage;
2435		return entry;
2436		}
2437	}	}
	}
2438
2439	index = 0;	index = 0;
2440	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2441	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2442	int j;	int j;
2443	for (j = 0; j < index; j++) {	for (j = 0; j < index; j++) {
2444	entry2 = findEntryByIndex(cfg, j);	entry2 = findEntryByIndex(cfg, j);
2445	if (entry2->skip) index--;	if (entry2->skip)
2446	}	index--;
2447	if (indexPtr) *indexPtr = index;	}
2448		if (indexPtr)
2449		*indexPtr = index;
2450
2451	return entry;	return entry;
2452	}	}
2453
2454	index++;	index++;
2455	}	}
2456
2457	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2458		_("grubby fatal error: unable to find a suitable template\n"));
2459
2460	return NULL;	return NULL;
2461	}	}
2462
2463	char * findBootPrefix(void) {	char *findBootPrefix(void)
2464	struct stat sb, sb2;	{
2465		struct stat sb, sb2;
2466
2467	stat("/", &sb);	stat("/", &sb);
2468	#ifdef __ia64__	#ifdef __ia64__
2469	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2470	#else	#else
2471	stat("/boot", &sb2);	stat("/boot", &sb2);
2472	#endif	#endif
2473
2474	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2475	return strdup("");	return strdup("");
2476
2477	#ifdef __ia64__	#ifdef __ia64__
2478	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2479	#else	#else
2480	return strdup("/boot");	return strdup("/boot");
2481	#endif	#endif
2482	}	}
2483
2484	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2485	const char * prefix) {	const char *prefix)
2486	struct singleEntry * entry;	{
2487		struct singleEntry *entry;
2488	if (!image) return;
2489		if (!image)
2490	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	return;
2491	entry->skip = 1;
2492	}	/* check and see if we're removing the default image */
2493		if (isdigit(*image)) {
2494	void setDefaultImage(struct grubConfig * config, int hasNew,	entry = findEntryByPath(cfg, image, prefix, NULL);
2495	const char * defaultKernelPath, int newIsDefault,	if (entry)
2496	const char * prefix, int flags) {	entry->skip = 1;
2497	struct singleEntry * entry, * entry2, * newDefault;	return;
2498	int i, j;	}
2499
2500	if (newIsDefault) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2501	config->defaultImage = 0;	entry->skip = 1;
2502	return;	}
2503	} else if (defaultKernelPath) {
2504	i = 0;	void setDefaultImage(struct grubConfig *config, int isUserSpecifiedKernelPath,
2505	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	const char *defaultKernelPath, int newBootEntryIsDefault,
2506	config->defaultImage = i;	const char *prefix, int flags, int newDefaultBootEntryIndex)
2507		{
2508		struct singleEntry *entry, *entry2, *newDefault;
2509		int i, j;
2510
2511		if (newBootEntryIsDefault) {
2512		config->defaultImage = FIRST_ENTRY_INDEX;
2513		return;
2514		} else if ((newDefaultBootEntryIndex >= 0) && config->cfi->defaultIsIndex) {
2515		if (findEntryByIndex(config, newDefaultBootEntryIndex))
2516		config->defaultImage = newDefaultBootEntryIndex;
2517		else
2518		config->defaultImage = NO_DEFAULT_ENTRY;
2519		return;
2520		} else if (defaultKernelPath) {
2521		i = 0;
2522		if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
2523		config->defaultImage = i;
2524		} else {
2525		config->defaultImage = NO_DEFAULT_ENTRY;
2526		return;
2527		}
2528		}
2529
2530		/* defaultImage now points to what we'd like to use, but before any
2531		* order changes */
2532		if ((config->defaultImage == DEFAULT_SAVED) ||
2533		(config->defaultImage == DEFAULT_SAVED_GRUB2))
2534		/* default is set to saved, we don't want to change it */
2535		return;
2536
2537		if (config->defaultImage >= FIRST_ENTRY_INDEX)
2538		entry = findEntryByIndex(config, config->defaultImage);
2539		else
2540		entry = NULL;
2541
2542		if (entry && !entry->skip) {
2543		/* we can preserve the default */
2544		if (isUserSpecifiedKernelPath)
2545		config->defaultImage++;
2546
2547		/* count the number of entries erased before this one */
2548		for (j = 0; j < config->defaultImage; j++) {
2549		entry2 = findEntryByIndex(config, j);
2550		if (entry2->skip)
2551		config->defaultImage--;
2552		}
2553		} else if (isUserSpecifiedKernelPath) {
2554		config->defaultImage = FIRST_ENTRY_INDEX;
2555	} else {	} else {
2556	config->defaultImage = -1;	/* Either we just erased the default (or the default line was
2557	return;	* bad to begin with) and didn't put a new one in. We'll use
2558		* the first valid image. */
2559		newDefault =
2560		findTemplate(config, prefix, &config->defaultImage, 1,
2561		flags);
2562		if (!newDefault)
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564	}	}
2565	}	}
2566
2567	/* defaultImage now points to what we'd like to use, but before any order	void setFallbackImage(struct grubConfig *config, int hasNew)
2568	changes */	{
2569	if (config->defaultImage == DEFAULT_SAVED)	struct singleEntry *entry, *entry2;
2570	/* default is set to saved, we don't want to change it */	int j;
2571	return;
2572		if (config->fallbackImage == -1)
2573	if (config->defaultImage > -1)	return;
2574	entry = findEntryByIndex(config, config->defaultImage);
2575	else	entry = findEntryByIndex(config, config->fallbackImage);
2576	entry = NULL;	if (!entry || entry->skip) {
2577		config->fallbackImage = -1;
2578		return;
2579		}
2580
	if (entry && !entry->skip) {
	/* we can preserve the default */
2581	if (hasNew)	if (hasNew)
2582	config->defaultImage++;	config->fallbackImage++;
2583
2584	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2585	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2586	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2587	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2588	}	config->fallbackImage--;
2589	} 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;
	}
2590	}	}
2591
2592	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2593	struct singleEntry * entry, * entry2;	{
2594	int j;	struct singleLine *line;
2595		char *root = NULL;
2596	if (config->fallbackImage == -1) return;	int i;
2597		int j;
2598	entry = findEntryByIndex(config, config->fallbackImage);
2599	if (!entry || entry->skip) {	printf("index=%d\n", index);
2600	config->fallbackImage = -1;
2601	return;	line =
2602	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2603		entry->lines);
2604		if (!line) {
2605		printf("non linux entry\n");
2606		return;
2607		}
2608
2609	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2610	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2611		else
2612	/* count the number of entries erased before this one */	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2613
2614	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2615	struct singleLine * line;	printf("args=\"");
2616	char * root = NULL;	i = 2;
2617	int i;	while (i < line->numElements) {
2618		if (!strncmp(line->elements[i].item, "root=", 5)) {
2619	line = entry->lines;	root = line->elements[i].item + 5;
2620	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2621		printf("%s%s", line->elements[i].item,
2622	printf("index=%d\n", index);	line->elements[i].indent);
2623		}
	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);
	}
2624
2625	i++;	i++;
2626		}
2627		printf("\"\n");
2628		} else {
2629		line = getLineByType(LT_KERNELARGS, entry->lines);
2630		if (line) {
2631		char *s;
2632
2633		printf("args=\"");
2634		i = 1;
2635		while (i < line->numElements) {
2636		if (!strncmp
2637		(line->elements[i].item, "root=", 5)) {
2638		root = line->elements[i].item + 5;
2639		} else {
2640		s = line->elements[i].item;
2641
2642		printf("%s%s", s,
2643		line->elements[i].indent);
2644		}
2645
2646		i++;
2647		}
2648
2649		s = line->elements[i - 1].indent;
2650		printf("\"\n");
2651		}
2652	}	}
2653	printf("\"\n");
2654	} else {	if (!root) {
2655	line = entry->lines;	line = getLineByType(LT_ROOT, entry->lines);
2656	while (line && line->type != LT_KERNELARGS) line=line->next;	if (line && line->numElements >= 2)
2657		root = line->elements[1].item;
2658		}
2659
2660		if (root) {
2661		char *s = alloca(strlen(root) + 1);
2662
2663		strcpy(s, root);
2664		if (s[strlen(s) - 1] == '"')
2665		s[strlen(s) - 1] = '\0';
2666		/* make sure the root doesn't have a trailing " */
2667		printf("root=%s\n", s);
2668		}
2669
2670		line =
2671		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2672		entry->lines);
2673
2674		if (line && line->numElements >= 2) {
2675		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2676		printf("initrd=");
2677		else
2678		printf("initrd=%s", prefix);
2679
2680		for (i = 1; i < line->numElements; i++)
2681		printf("%s%s", line->elements[i].item,
2682		line->elements[i].indent);
2683		printf("\n");
2684		}
2685
2686		line = getLineByType(LT_TITLE, entry->lines);
2687	if (line) {	if (line) {
2688	char * s;	printf("title=%s\n", line->elements[1].item);
2689		} else {
2690		char *title;
2691		line = getLineByType(LT_MENUENTRY, entry->lines);
2692		if (line) {
2693		title = grub2ExtractTitle(line);
2694		if (title)
2695		printf("title=%s\n", title);
2696		}
2697		}
2698
2699		for (j = 0, line = entry->lines; line; line = line->next) {
2700		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2701		if (!strncmp
2702		(prefix, line->elements[1].item, strlen(prefix)))
2703		printf("mbmodule%d=", j);
2704		else
2705		printf("mbmodule%d=%s", j, prefix);
2706
2707		for (i = 1; i < line->numElements; i++)
2708		printf("%s%s", line->elements[i].item,
2709		line->elements[i].indent);
2710		printf("\n");
2711		j++;
2712		}
2713		}
2714		}
2715
2716		int isSuseSystem(void)
2717		{
2718		const char *path;
2719		const static char default_path[] = "/etc/SuSE-release";
2720
2721		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2722		path = default_path;
2723
2724		if (!access(path, R_OK))
2725		return 1;
2726		return 0;
2727		}
2728
2729		int isSuseGrubConf(const char *path)
2730		{
2731		FILE *grubConf;
2732		char *line = NULL;
2733		size_t len = 0, res = 0;
2734
2735		grubConf = fopen(path, "r");
2736		if (!grubConf) {
2737		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2738		path);
2739		return 0;
2740		}
2741
2742		while ((res = getline(&line, &len, grubConf)) != -1) {
2743		if (!strncmp(line, "setup", 5)) {
2744		fclose(grubConf);
2745		free(line);
2746		return 1;
2747		}
2748		}
2749
2750		dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2751		path);
2752
2753		fclose(grubConf);
2754		free(line);
2755		return 0;
2756		}
2757
2758		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2759		{
2760		FILE *grubConf;
2761		char *line = NULL;
2762		size_t res = 0, len = 0;
2763
2764		if (!path)
2765		return 1;
2766		if (!lbaPtr)
2767		return 1;
2768
2769		grubConf = fopen(path, "r");
2770		if (!grubConf)
2771		return 1;
2772
2773		while ((res = getline(&line, &len, grubConf)) != -1) {
2774		if (line[res - 1] == '\n')
2775		line[res - 1] = '\0';
2776		else if (len > res)
2777		line[res] = '\0';
2778		else {
2779		line = realloc(line, res + 1);
2780		line[res] = '\0';
2781		}
2782
2783		if (!strncmp(line, "setup", 5)) {
2784		if (strstr(line, "--force-lba")) {
2785		*lbaPtr = 1;
2786		} else {
2787		*lbaPtr = 0;
2788		}
2789		dbgPrintf("lba: %i\n", *lbaPtr);
2790		break;
2791		}
2792		}
2793
2794		free(line);
2795		fclose(grubConf);
2796		return 0;
2797		}
2798
2799		int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2800		{
2801		FILE *grubConf;
2802		char *line = NULL;
2803		size_t res = 0, len = 0;
2804		char *lastParamPtr = NULL;
2805		char *secLastParamPtr = NULL;
2806		char installDeviceNumber = '\0';
2807		char *bounds = NULL;
2808
2809		if (!path)
2810		return 1;
2811		if (!devicePtr)
2812		return 1;
2813
2814	printf("args=\"");	grubConf = fopen(path, "r");
2815	i = 1;	if (!grubConf)
2816	while (i < line->numElements) {	return 1;
2817	if (!strncmp(line->elements[i].item, "root=", 5)) {
2818	root = line->elements[i].item + 5;	while ((res = getline(&line, &len, grubConf)) != -1) {
2819		if (strncmp(line, "setup", 5))
2820		continue;
2821
2822		if (line[res - 1] == '\n')
2823		line[res - 1] = '\0';
2824		else if (len > res)
2825		line[res] = '\0';
2826		else {
2827		line = realloc(line, res + 1);
2828		line[res] = '\0';
2829		}
2830
2831		lastParamPtr = bounds = line + res;
2832
2833		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2834		while (!isspace(*lastParamPtr))
2835		lastParamPtr--;
2836		lastParamPtr++;
2837
2838		secLastParamPtr = lastParamPtr - 2;
2839		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2840
2841		if (lastParamPtr + 3 > bounds) {
2842		dbgPrintf("lastParamPtr going over boundary");
2843		fclose(grubConf);
2844		free(line);
2845		return 1;
2846		}
2847		if (!strncmp(lastParamPtr, "(hd", 3))
2848		lastParamPtr += 3;
2849		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2850
2851		/*
2852		* Second last parameter will decide wether last parameter is
2853		* an IMAGE_DEVICE or INSTALL_DEVICE
2854		*/
2855		while (!isspace(*secLastParamPtr))
2856		secLastParamPtr--;
2857		secLastParamPtr++;
2858
2859		if (secLastParamPtr + 3 > bounds) {
2860		dbgPrintf("secLastParamPtr going over boundary");
2861		fclose(grubConf);
2862		free(line);
2863		return 1;
2864		}
2865		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2866		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2867		secLastParamPtr += 3;
2868		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2869		installDeviceNumber = *secLastParamPtr;
2870	} else {	} else {
2871	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
2872		}
2873
2874		*devicePtr = malloc(6);
2875		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2876		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2877		fclose(grubConf);
2878		free(line);
2879		return 0;
2880		}
2881
2882		free(line);
2883		fclose(grubConf);
2884		return 1;
2885		}
2886
2887		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2888		{
2889		FILE *deviceMap;
2890		char *line = NULL;
2891		size_t res = 0, len = 0;
2892		char *devicePtr;
2893		char *bounds = NULL;
2894		const char *path;
2895		const static char default_path[] = "/boot/grub/device.map";
2896
2897		if (!device)
2898		return 1;
2899		if (!bootPtr)
2900		return 1;
2901
2902		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2903		path = default_path;
2904
2905		dbgPrintf("opening grub device.map file from: %s\n", path);
2906		deviceMap = fopen(path, "r");
2907		if (!deviceMap)
2908		return 1;
2909
2910	printf("%s%s", s, line->elements[i].indent);	while ((res = getline(&line, &len, deviceMap)) != -1) {
2911		if (!strncmp(line, "#", 1))
2912		continue;
2913
2914		if (line[res - 1] == '\n')
2915		line[res - 1] = '\0';
2916		else if (len > res)
2917		line[res] = '\0';
2918		else {
2919		line = realloc(line, res + 1);
2920		line[res] = '\0';
2921	}	}
2922
2923	i++;	devicePtr = line;
2924	}	bounds = line + res;
2925
2926		while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2927		devicePtr++;
2928		dbgPrintf("device: %s\n", devicePtr);
2929
2930		if (!strncmp(devicePtr, device, strlen(device))) {
2931		devicePtr += strlen(device);
2932		while (isspace(*devicePtr)
2933		&& ((devicePtr + 1) <= bounds))
2934		devicePtr++;
2935
2936	s = line->elements[i - 1].indent;	*bootPtr = strdup(devicePtr);
2937	printf("\"\n");	break;
2938		}
2939	}	}
	}
2940
2941	if (!root) {	free(line);
2942	line = entry->lines;	fclose(deviceMap);
2943	while (line && line->type != LT_ROOT) line = line->next;	return 0;
2944		}
2945
2946	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
2947	root=line->elements[1].item;	{
2948	}	char *grubDevice;
2949
2950	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
2951	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
2952		else
2953	strcpy(s, root);	dbgPrintf("grubby installation device: %s\n", grubDevice);
	if (s[strlen(s) - 1] == '"')
	s[strlen(s) - 1] = '\0';
	/* make sure the root doesn't have a trailing " */
	printf("root=%s\n", s);
	}
2954
2955	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
2956	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
2957		else
2958		dbgPrintf("grubby boot device: %s\n", *bootPtr);
2959
2960	if (line && line->numElements >= 2) {	free(grubDevice);
2961	printf("initrd=%s", prefix);	return 0;
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2962	}	}
2963
2964	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
2965	FILE * in;	{
2966	char buf[1024];	/*
2967	char * chptr;	* This SuSE grub configuration file at this location is not your
2968	char * start;	* average grub configuration file, but instead the grub commands
2969	char * param;	* used to setup grub on that system.
2970		*/
2971	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
2972	if (!in) return 1;	const static char default_path[] = "/etc/grub.conf";
	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);
	}
2973
2974	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
2975		path = default_path;
2976
2977	return 0;	if (!isSuseGrubConf(path))
2978		return 1;
2979
2980		if (lbaPtr) {
2981		*lbaPtr = 0;
2982		if (suseGrubConfGetLba(path, lbaPtr))
2983		return 1;
2984		}
2985
2986		if (bootPtr) {
2987		*bootPtr = NULL;
2988		suseGrubConfGetBoot(path, bootPtr);
2989		}
2990
2991		return 0;
2992	}	}
2993
2994	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
2995	char * boot;	{
2996	int lba;	FILE *in;
2997		char buf[1024];
2998	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
2999	if (lba) printf("lba\n");	char *start;
3000	if (boot) printf("boot=%s\n", boot);	char *param;
3001	}
3002		in = fopen("/etc/sysconfig/grub", "r");
3003		if (!in)
3004		return 1;
3005
3006		if (lbaPtr)
3007		*lbaPtr = 0;
3008		if (bootPtr)
3009		*bootPtr = NULL;
3010
3011		while (fgets(buf, sizeof(buf), in)) {
3012		start = buf;
3013		while (isspace(*start))
3014		start++;
3015		if (*start == '#')
3016		continue;
3017
3018		chptr = strchr(start, '=');
3019		if (!chptr)
3020		continue;
3021		chptr--;
3022		while (*chptr && isspace(*chptr))
3023		chptr--;
3024		chptr++;
3025		*chptr = '\0';
3026
3027		param = chptr + 1;
3028		while (*param && isspace(*param))
3029		param++;
3030		if (*param == '=') {
3031		param++;
3032		while (*param && isspace(*param))
3033		param++;
3034		}
3035
3036		chptr = param;
3037		while (*chptr && !isspace(*chptr))
3038		chptr++;
3039		*chptr = '\0';
3040
3041		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3042		*lbaPtr = 1;
3043		else if (!strcmp(start, "boot") && bootPtr)
3044		*bootPtr = strdup(param);
3045		}
3046
3047		fclose(in);
3048
3049		return 0;
3050	}	}
3051
3052	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3053	const char * prefix) {	{
3054	int i = 0;	char *boot = NULL;
3055	struct singleEntry * entry;	int lba;
3056	struct singleLine * line;
3057		if (isSuseSystem()) {
3058	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3059	if (!entry) {	free(boot);
3060	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3061	return 1;	}
3062	}	} else {
3063		if (parseSysconfigGrub(&lba, &boot)) {
3064		free(boot);
3065		return;
3066		}
3067		}
3068
3069	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3070	be a better way */	printf("lba\n");
3071	if (config->cfi == &grubConfigType) {	if (boot) {
3072	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3073	} else {	free(boot);
	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);
3074	}	}
3075		}
3076
3077	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3078	while (line && line->type != LT_LBA) line = line->next;	{
3079	if (line) printf("lba\n");	int i = 0;
3080	}	struct singleEntry *entry;
3081		struct singleLine *line;
3082
3083		entry = findEntryByPath(config, kernel, prefix, &i);
3084		if (!entry) {
3085		fprintf(stderr, _("grubby: kernel not found\n"));
3086		return 1;
3087		}
3088
3089	displayEntry(entry, prefix, i);	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3090		be a better way */
3091		if (config->cfi == &grubConfigType) {
3092		dumpSysconfigGrub();
3093		} else {
3094		line = getLineByType(LT_BOOT, config->theLines);
3095		if (line && line->numElements >= 1) {
3096		printf("boot=%s\n", line->elements[1].item);
3097		}
3098
3099		line = getLineByType(LT_LBA, config->theLines);
3100		if (line)
3101		printf("lba\n");
3102		}
3103
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3104	displayEntry(entry, prefix, i);	displayEntry(entry, prefix, i);
3105
3106	i++;	i++;
3107	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3108		displayEntry(entry, prefix, i);
3109		i++;
3110		}
3111
3112	return 0;	return 0;
3113		}
3114
3115		struct singleLine *addLineTmpl(struct singleEntry *entry,
3116		struct singleLine *tmplLine,
3117		struct singleLine *prevLine,
3118		const char *val, struct configFileInfo *cfi)
3119		{
3120		struct singleLine *newLine = lineDup(tmplLine);
3121
3122		if (isEfi && cfi == &grub2ConfigType) {
3123		enum lineType_e old = newLine->type;
3124		newLine->type = preferredLineType(newLine->type, cfi);
3125		if (old != newLine->type)
3126		newLine->elements[0].item =
3127		getKeyByType(newLine->type, cfi);
3128		}
3129
3130		if (val) {
3131		/* override the inherited value with our own.
3132		* This is a little weak because it only applies to elements[1]
3133		*/
3134		if (newLine->numElements > 1)
3135		removeElement(newLine, 1);
3136		insertElement(newLine, val, 1, cfi);
3137
3138		/* but try to keep the rootspec from the template... sigh */
3139		if (tmplLine->
3140		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3141		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3142		LT_INITRD_16)) {
3143		char *rootspec =
3144		getRootSpecifier(tmplLine->elements[1].item);
3145		if (rootspec != NULL) {
3146		free(newLine->elements[1].item);
3147		newLine->elements[1].item =
3148		sdupprintf("%s%s", rootspec, val);
3149		}
3150		}
3151		}
3152
3153		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3154		newLine->elements[0].item : "");
3155
3156		if (!entry->lines) {
3157		/* first one on the list */
3158		entry->lines = newLine;
3159		} else if (prevLine) {
3160		/* add after prevLine */
3161		newLine->next = prevLine->next;
3162		prevLine->next = newLine;
3163		}
3164
3165		return newLine;
3166	}	}
3167
3168	/* val may be NULL */	/* val may be NULL */
3169	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3170	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3171	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3172	char * val) {	const char *val)
3173	struct singleLine * line, * prev;	{
3174	int i;	struct singleLine *line, *prev;
3175		struct keywordTypes *kw;
3176	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3177	if (cfi->keywords[i].type == type) break;
3178	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3179	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3180		*/
3181	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3182	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3183	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3184	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3185	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3186	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3187	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3188	prev = NULL;	tmpl.elements[0].indent = "";
3189	while (line) {	val = NULL;
3190	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3191	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3192		if (!val) {
3193		fprintf(stderr,
3194		"Line type LT_MENUENTRY requires a value\n");
3195		abort();
3196		}
3197		kw = getKeywordByType(type, cfi);
3198		if (!kw) {
3199		fprintf(stderr,
3200		"Looking up keyword for unknown type %d\n",
3201		type);
3202		abort();
3203		}
3204		tmpl.indent = "";
3205		tmpl.type = type;
3206		tmpl.numElements = 3;
3207		tmpl.elements =
3208		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3209		tmpl.elements[0].item = kw->key;
3210		tmpl.elements[0].indent = alloca(2);
3211		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3212		tmpl.elements[1].item = (char *)val;
3213		tmpl.elements[1].indent = alloca(2);
3214		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3215		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3216		strcpy(tmpl.elements[2].item, lineend);
3217		tmpl.elements[2].indent = "";
3218		} else {
3219		kw = getKeywordByType(type, cfi);
3220		if (!kw) {
3221		fprintf(stderr,
3222		"Looking up keyword for unknown type %d\n",
3223		type);
3224		abort();
3225		}
3226		tmpl.type = type;
3227		tmpl.numElements = val ? 2 : 1;
3228		tmpl.elements =
3229		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3230		tmpl.elements[0].item = kw->key;
3231		tmpl.elements[0].indent = alloca(2);
3232		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3233		if (val) {
3234		tmpl.elements[1].item = (char *)val;
3235		tmpl.elements[1].indent = "";
3236		}
3237	}	}
	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;
3238
3239	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3240	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3241	else	* which may not be ideal? If there are no lines or we are looking at
3242	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3243	} else {	* indented differently from the rest) */
3244	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3245	line->indent = strdup(defaultIndent);	if (line->numElements)
3246	line->next = NULL;	prev = line;
3247	}	/* fall back on the last line if prev isn't otherwise set */
3248		if (!line->next && !prev)
3249		prev = line;
3250		}
3251
3252		struct singleLine *menuEntry;
3253		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3254		if (tmpl.type == LT_ENTRY_END) {
3255		if (menuEntry)
3256		tmpl.indent = menuEntry->indent;
3257		else
3258		tmpl.indent = defaultIndent ? : "";
3259		} else if (tmpl.type != LT_MENUENTRY) {
3260		if (menuEntry)
3261		tmpl.indent = "\t";
3262		else if (prev == entry->lines)
3263		tmpl.indent = defaultIndent ? : "";
3264		else
3265		tmpl.indent = prev->indent;
3266		}
3267
3268	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3269	line->type = type;	}
3270	line->numElements = val ? 2 : 1;
3271	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3272	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3273	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3274	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
	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("");
	}
3275
3276	return line;	for (i = 0; i < line->numElements; i++) {
3277		free(line->elements[i].item);
3278		free(line->elements[i].indent);
3279		}
3280		free(line->elements);
3281		free(line->indent);
3282
3283		if (line == entry->lines) {
3284		entry->lines = line->next;
3285		} else {
3286		prev = entry->lines;
3287		while (prev->next != line)
3288		prev = prev->next;
3289		prev->next = line->next;
3290		}
3291
3292		free(line);
3293	}	}
3294
3295	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3296	struct singleLine * prev;	{
3297	int i;	struct singleLine newLine = {
3298		.indent = tmplLine->indent,
3299		.type = tmplLine->type,
3300		.next = tmplLine->next,
3301		};
3302		int firstQuotedItem = -1;
3303		int quoteLen = 0;
3304		int j;
3305		int element = 0;
3306		char *c;
3307
3308		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3309		strcpy(c, tmplLine->elements[0].item);
3310		insertElement(&newLine, c, element++, cfi);
3311		free(c);
3312		c = NULL;
3313
3314		for (j = 1; j < tmplLine->numElements; j++) {
3315		if (firstQuotedItem == -1) {
3316		quoteLen += strlen(tmplLine->elements[j].item);
3317
3318		if (isquote(tmplLine->elements[j].item[0])) {
3319		firstQuotedItem = j;
3320		quoteLen +=
3321		strlen(tmplLine->elements[j].indent);
3322		} else {
3323		c = malloc(quoteLen + 1);
3324		strcpy(c, tmplLine->elements[j].item);
3325		insertElement(&newLine, c, element++, cfi);
3326		free(c);
3327		quoteLen = 0;
3328		}
3329		} else {
3330		int itemlen = strlen(tmplLine->elements[j].item);
3331		quoteLen += itemlen;
3332		quoteLen += strlen(tmplLine->elements[j].indent);
3333
3334		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3335		c = malloc(quoteLen + 1);
3336		c[0] = '\0';
3337		for (int i = firstQuotedItem; i < j + 1; i++) {
3338		strcat(c, tmplLine->elements[i].item);
3339		strcat(c, tmplLine->elements[i].indent);
3340		}
3341		insertElement(&newLine, c, element++, cfi);
3342		free(c);
3343
3344		firstQuotedItem = -1;
3345		quoteLen = 0;
3346		}
3347		}
3348		}
3349		while (tmplLine->numElements)
3350		removeElement(tmplLine, 0);
3351		if (tmplLine->elements)
3352		free(tmplLine->elements);
3353
3354	for (i = 0; i < line->numElements; i++) {	tmplLine->numElements = newLine.numElements;
3355	free(line->elements[i].item);	tmplLine->elements = newLine.elements;
3356	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
3357
3358	if (line == entry->lines) {	static void insertElement(struct singleLine *line,
3359	entry->lines = line->next;	const char *item, int insertHere,
3360	} else {	struct configFileInfo *cfi)
3361	prev = entry->lines;	{
3362	while (prev->next != line) prev = prev->next;	struct keywordTypes *kw;
3363	prev->next = line->next;	char indent[2] = "";
3364	}
3365		/* sanity check */
3366		if (insertHere > line->numElements) {
3367		dbgPrintf
3368		("insertElement() adjusting insertHere from %d to %d\n",
3369		insertHere, line->numElements);
3370		insertHere = line->numElements;
3371		}
3372
3373		line->elements = realloc(line->elements, (line->numElements + 1) *
3374		sizeof(*line->elements));
3375		memmove(&line->elements[insertHere + 1],
3376		&line->elements[insertHere],
3377		(line->numElements - insertHere) * sizeof(*line->elements));
3378		line->elements[insertHere].item = strdup(item);
3379
3380		kw = getKeywordByType(line->type, cfi);
3381
3382		if (line->numElements == 0) {
3383		indent[0] = '\0';
3384		} else if (insertHere == 0) {
3385		indent[0] = kw->nextChar;
3386		} else if (kw->separatorChar != '\0') {
3387		indent[0] = kw->separatorChar;
3388		} else {
3389		indent[0] = ' ';
3390		}
3391
3392	free(line);	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3393		/* move the end-of-line forward */
3394		line->elements[insertHere].indent =
3395		line->elements[insertHere - 1].indent;
3396		line->elements[insertHere - 1].indent = strdup(indent);
3397		} else {
3398		line->elements[insertHere].indent = strdup(indent);
3399		}
3400
3401		line->numElements++;
3402
3403		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3404		line->elements[0].item,
3405		line->elements[insertHere].item,
3406		line->elements[insertHere].indent, insertHere);
3407	}	}
3408
3409	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3410	char * first, * second;	{
3411	char * chptr;	int i;
3412
3413	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3414	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3415		return;
3416	chptr = strchr(first, '=');
3417	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3418		removeHere, line->elements[removeHere].item);
3419	chptr = strchr(second, '=');
3420	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3421
3422	return strcmp(first, second);	if (removeHere > 1) {
3423	}	/* previous argument gets this argument's post-indentation */
3424		free(line->elements[removeHere - 1].indent);
3425	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3426	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3427	const char * removeArgs, int multibootArgs) {	} else {
3428	struct singleEntry * entry;	free(line->elements[removeHere].indent);
	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;
3429	}	}
	}
3430
3431	if (!removeArgs) {	/* now collapse the array, but don't bother to realloc smaller */
3432	oldArgs = malloc(sizeof(*oldArgs));	for (i = removeHere; i < line->numElements - 1; i++)
3433	*oldArgs = NULL;	line->elements[i] = line->elements[i + 1];
3434	} else {
3435	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	line->numElements--;
3436	fprintf(stderr,	}
3437	_("grubby: error separating arguments '%s'\n"), removeArgs);
3438	free(newArgs);	int argMatch(const char *one, const char *two)
3439	return 1;	{
3440		char *first, *second;
3441		char *chptr;
3442
3443		first = strcpy(alloca(strlen(one) + 1), one);
3444		second = strcpy(alloca(strlen(two) + 1), two);
3445
3446		chptr = strchr(first, '=');
3447		if (chptr)
3448		*chptr = '\0';
3449
3450		chptr = strchr(second, '=');
3451		if (chptr)
3452		*chptr = '\0';
3453
3454		return strcmp(first, second);
3455		}
3456
3457		int updateActualImage(struct grubConfig *cfg, const char *image,
3458		const char *prefix, const char *addArgs,
3459		const char *removeArgs, int multibootArgs)
3460		{
3461		struct singleEntry *entry;
3462		struct singleLine *line, *rootLine;
3463		int index = 0;
3464		int i, k;
3465		const char **newArgs, **oldArgs;
3466		const char **arg;
3467		int useKernelArgs, useRoot;
3468		int firstElement;
3469		int *usedElements;
3470		int doreplace;
3471
3472		if (!image)
3473		return 0;
3474
3475		if (!addArgs) {
3476		newArgs = malloc(sizeof(*newArgs));
3477		*newArgs = NULL;
3478		} else {
3479		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3480		fprintf(stderr,
3481		_("grubby: error separating arguments '%s'\n"),
3482		addArgs);
3483		return 1;
3484		}
3485	}	}
	}
3486
3487	for (i = 0; cfg->cfi->keywords[i].key; i++)	if (!removeArgs) {
3488	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	oldArgs = malloc(sizeof(*oldArgs));
3489		*oldArgs = NULL;
3490		} else {
3491		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3492		fprintf(stderr,
3493		_("grubby: error separating arguments '%s'\n"),
3494		removeArgs);
3495		free(newArgs);
3496		return 1;
3497		}
3498		}
3499
3500	if (cfg->cfi->keywords[i].key)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3501	useKernelArgs = 1;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3502
3503	for (i = 0; cfg->cfi->keywords[i].key; i++)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3504	if (cfg->cfi->keywords[i].type == LT_ROOT) break;	&& !multibootArgs);
3505
3506	if (cfg->cfi->keywords[i].key)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3507	useRoot = 1;
3508		if (multibootArgs && !entry->multiboot)
3509	k = 0;	continue;
3510	for (arg = newArgs; *arg; arg++)
3511	k++;	/* Determine where to put the args.  If this config supports
3512	usedArgs = calloc(k, sizeof(int));	* LT_KERNELARGS, use that.  Otherwise use
3513		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3514	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	*/
3515	index++;	if (useKernelArgs) {
3516		line = getLineByType(LT_KERNELARGS, entry->lines);
3517	line = entry->lines;	if (!line) {
3518	while (line && line->type != LT_KERNEL) line = line->next;	/* no LT_KERNELARGS, need to add it */
3519	if (!line) continue;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3520	firstElement = 2;	cfg->secondaryIndent, NULL);
3521		}
3522	if (entry->multiboot && !multibootArgs) {	firstElement = 1;
3523	/* first mb module line is the real kernel */
3524	while (line && line->type != LT_MBMODULE) line = line->next;	} else if (multibootArgs) {
3525	firstElement = 2;	line = getLineByType(LT_HYPER, entry->lines);
3526	} else if (useKernelArgs) {	if (!line) {
3527	while (line && line->type != LT_KERNELARGS) line = line->next;	/* a multiboot entry without LT_HYPER? */
3528	firstElement = 1;	continue;
3529	}	}
3530		firstElement = 2;
	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;
	}
	}
	chptr = strchr(*arg, '=');
3531
	if (i < line->numElements) {
	/* replace */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10) && *chptr) {
	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(" ");
3532	} else {	} else {
3533	/* First thing on this line; treat a bit differently. Note	line =
3534	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3535	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3536	line->elements[line->numElements].indent = strdup("");	entry->lines);
3537		if (!line) {
3538		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3539		continue;
3540		}
3541		firstElement = 2;
3542	}	}
3543
3544	line->numElements++;	/* handle the elilo case which does:
3545		*   append="hypervisor args -- kernel args"
3546		*/
3547		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3548		/* this is a multiboot entry, make sure there's
3549		* -- on the args line
3550		*/
3551		for (i = firstElement; i < line->numElements; i++) {
3552		if (!strcmp(line->elements[i].item, "--"))
3553		break;
3554		}
3555		if (i == line->numElements) {
3556		/* assume all existing args are kernel args,
3557		* prepend -- to make it official
3558		*/
3559		insertElement(line, "--", firstElement,
3560		cfg->cfi);
3561		i = firstElement;
3562		}
3563		if (!multibootArgs) {
3564		/* kernel args start after the -- */
3565		firstElement = i + 1;
3566		}
3567		} else if (cfg->cfi->mbConcatArgs) {
3568		/* this is a non-multiboot entry, remove hyper args */
3569		for (i = firstElement; i < line->numElements; i++) {
3570		if (!strcmp(line->elements[i].item, "--"))
3571		break;
3572		}
3573		if (i < line->numElements) {
3574		/* remove args up to -- */
3575		while (strcmp
3576		(line->elements[firstElement].item,
3577		"--"))
3578		removeElement(line, firstElement);
3579		/* remove -- */
3580		removeElement(line, firstElement);
3581		}
3582		}
3583
3584		usedElements = calloc(line->numElements, sizeof(*usedElements));
3585
3586	/* if we updated a root= here even though there is a	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3587	LT_ROOT available we need to remove the LT_ROOT entry
3588	(this will happen if we switch from a device to a label) */	doreplace = 1;
3589	if (useRoot && !strncmp(*arg, "root=", 5)) {	for (i = firstElement; i < line->numElements; i++) {
3590	rootLine = entry->lines;	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3591	while (rootLine && rootLine->type != LT_ROOT)	!strcmp(line->elements[i].item, "--")) {
3592	rootLine = rootLine->next;	/* reached the end of hyper args, insert here */
3593	if (rootLine) {	doreplace = 0;
3594	removeLine(entry, rootLine);	break;
3595	}	}
3596	}	if (usedElements[i])
3597	}	continue;
3598	k++;	if (!argMatch(line->elements[i].item, *arg)) {
3599	}	usedElements[i] = 1;
3600		break;
3601	free(usedElements);	}
3602		}
3603	/* no arguments to remove (i.e. no append line) */
3604	if (!line) continue;	if (i < line->numElements && doreplace) {
3605		/* direct replacement */
3606	/* this won't remove an LT_ROOT item properly (but then again,	free(line->elements[i].item);
3607	who cares? */	line->elements[i].item = strdup(*arg);
3608	for (arg = oldArgs; *arg; arg++) {
3609	for (i = firstElement; i < line->numElements; i++)	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3610	if (!argMatch(line->elements[i].item, *arg))	/* root= replacement */
3611	break;	rootLine = getLineByType(LT_ROOT, entry->lines);
3612		if (rootLine) {
3613	if (i < line->numElements) {	free(rootLine->elements[1].item);
3614	/* if this isn't the first argument the previous argument	rootLine->elements[1].item =
3615	gets this arguments post-indention */	strdup(*arg + 5);
3616	if (i > firstElement) {	} else {
3617	free(line->elements[i - 1].indent);	rootLine =
3618	line->elements[i - 1].indent = line->elements[i].indent;	addLine(entry, cfg->cfi, LT_ROOT,
3619		cfg->secondaryIndent,
3620		*arg + 5);
3621		}
3622		}
3623
3624		else {
3625		/* insert/append */
3626		insertElement(line, *arg, i, cfg->cfi);
3627		usedElements =
3628		realloc(usedElements,
3629		line->numElements *
3630		sizeof(*usedElements));
3631		memmove(&usedElements[i + 1], &usedElements[i],
3632		line->numElements - i - 1);
3633		usedElements[i] = 1;
3634
3635		/* if we updated a root= here even though
3636		* there is a LT_ROOT available we need to
3637		* remove the LT_ROOT entry (this will happen
3638		* if we switch from a device to a label) */
3639		if (useRoot && !strncmp(*arg, "root=", 5)) {
3640		rootLine =
3641		getLineByType(LT_ROOT,
3642		entry->lines);
3643		if (rootLine)
3644		removeLine(entry, rootLine);
3645		}
3646		}
3647	}	}
	free(line->elements[i].item);
3648
3649	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3650
3651	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3652	}	for (i = firstElement; i < line->numElements; i++) {
3653	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3654		!strcmp(line->elements[i].item, "--"))
3655		/* reached the end of hyper args, stop here */
3656		break;
3657		if (!argMatch(line->elements[i].item, *arg)) {
3658		removeElement(line, i);
3659		break;
3660		}
3661		}
3662		/* handle removing LT_ROOT line too */
3663		if (useRoot && !strncmp(*arg, "root=", 5)) {
3664		rootLine = getLineByType(LT_ROOT, entry->lines);
3665		if (rootLine)
3666		removeLine(entry, rootLine);
3667		}
3668		}
3669
3670	if (line->numElements == 1) {	if (line->numElements == 1) {
3671	/* don't need the line at all (note it has to be a	/* don't need the line at all (note it has to be a
3672	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3673	removeLine(entry, line);	removeLine(entry, line);
3674		}
3675	}	}
	}
3676
3677	free(usedArgs);	free(newArgs);
3678	free(newArgs);	free(oldArgs);
	free(oldArgs);
3679
3680	return 0;	return 0;
3681	}	}
3682
3683	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3684	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3685	const char * removeArgs,	const char *removeArgs,
3686	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3687	int rc = 0;	{
3688		int rc = 0;
3689	if (!image) return rc;
3690		if (!image)
3691	/* update the main args first... */	return rc;
3692	if (addArgs || removeArgs)
3693	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3694	if (rc) return rc;	if (addArgs || removeArgs)
3695		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3696	/* and now any multiboot args */	0);
3697	if (addMBArgs || removeMBArgs)	if (rc)
3698	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3699	return rc;
3700	}	/* and now any multiboot args */
3701		if (addMBArgs || removeMBArgs)
3702	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3703	int fd;	removeMBArgs, 1);
3704	unsigned char bootSect[512];	return rc;
3705	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3706
3707	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3708	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3709	device, strerror(errno));	const char *title)
3710	return 1;	{
3711	}	struct singleEntry *entry;
3712	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3713		int index = 0;
3714
3715		if (!image)
3716		return 0;
3717
3718		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3719		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3720		if (!kernelLine)
3721		continue;
3722
3723		/* if title is supplied, the entry's title must match it. */
3724		if (title) {
3725		char *linetitle;
3726
3727		line =
3728		getLineByType(LT_TITLE | LT_MENUENTRY,
3729		entry->lines);
3730		if (!line)
3731		continue;
3732
3733		linetitle = extractTitle(cfg, line);
3734		if (!linetitle)
3735		continue;
3736		if (strcmp(title, linetitle)) {
3737		free(linetitle);
3738		continue;
3739		}
3740		free(linetitle);
3741		}
3742
3743	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3744	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3745	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3746		initrd += prefixLen;
3747		}
3748		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3749		if (endLine)
3750		removeLine(entry, endLine);
3751		line =
3752		addLine(entry, cfg->cfi,
3753		preferredLineType(LT_MBMODULE, cfg->cfi),
3754		kernelLine->indent, initrd);
3755		if (!line)
3756		return 1;
3757		if (endLine) {
3758		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3759		if (!line)
3760		return 1;
3761		}
3762
3763	if (boot[1] == 0xeb) {	break;
3764	offset = boot[2] + 2;	}
	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
	offset = (boot[3] << 8) + boot[2] + 2;
	} else if (boot[0] == 0xeb) {
	offset = boot[1] + 2;
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
3765
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3766	return 0;	return 0;
3767		}
3768
3769		int updateInitrd(struct grubConfig *cfg, const char *image,
3770		const char *prefix, const char *initrd, const char *title)
3771		{
3772		struct singleEntry *entry;
3773		struct singleLine *line, *kernelLine, *endLine = NULL;
3774		int index = 0;
3775
3776		if (!image)
3777		return 0;
3778
3779		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3780		kernelLine =
3781		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3782		entry->lines);
3783		if (!kernelLine)
3784		continue;
3785
3786		/* if title is supplied, the entry's title must match it. */
3787		if (title) {
3788		char *linetitle;
3789
3790		line =
3791		getLineByType(LT_TITLE | LT_MENUENTRY,
3792		entry->lines);
3793		if (!line)
3794		continue;
3795
3796		linetitle = extractTitle(cfg, line);
3797		if (!linetitle)
3798		continue;
3799		if (strcmp(title, linetitle)) {
3800		free(linetitle);
3801		continue;
3802		}
3803		free(linetitle);
3804		}
3805
3806		line =
3807		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3808		entry->lines);
3809		if (line)
3810		removeLine(entry, line);
3811		if (prefix) {
3812		int prefixLen = strlen(prefix);
3813		if (!strncmp(initrd, prefix, prefixLen))
3814		initrd += prefixLen;
3815		}
3816		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3817		if (endLine)
3818		removeLine(entry, endLine);
3819		enum lineType_e lt;
3820		switch (kernelLine->type) {
3821		case LT_KERNEL:
3822		lt = LT_INITRD;
3823		break;
3824		case LT_KERNEL_EFI:
3825		lt = LT_INITRD_EFI;
3826		break;
3827		case LT_KERNEL_16:
3828		lt = LT_INITRD_16;
3829		break;
3830		default:
3831		lt = preferredLineType(LT_INITRD, cfg->cfi);
3832		}
3833		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3834		if (!line)
3835		return 1;
3836		if (endLine) {
3837		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3838		if (!line)
3839		return 1;
3840		}
3841
3842		break;
3843		}
3844
3845	return 2;	return 0;
3846	}	}
3847
3848	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3849	int fd;	{
3850	char buf[65536];	int fd;
3851	char * end;	unsigned char bootSect[512];
3852	char * chptr;	int offset;
3853	char * chptr2;
3854	int rc;	fd = open(device, O_RDONLY);
3855		if (fd < 0) {
3856		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3857		device, strerror(errno));
3858		return 1;
3859		}
3860
3861		if (read(fd, bootSect, 512) != 512) {
3862		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3863		device, strerror(errno));
3864		return 1;
3865		}
3866		close(fd);
3867
3868	/* it's on raid; we need to parse /proc/mdstat and check all of the	/* first three bytes should match, a jmp short should be in there */
3869	*raw* devices listed in there */	if (memcmp(boot, bootSect, 3))
3870		return 0;
3871
3872		if (boot[1] == JMP_SHORT_OPCODE) {
3873		offset = boot[2] + 2;
3874		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3875		offset = (boot[3] << 8) + boot[2] + 2;
3876		} else if (boot[0] == JMP_SHORT_OPCODE) {
3877		offset = boot[1] + 2;
3878		/*
3879		* it looks like grub, when copying stage1 into the mbr,
3880		* patches stage1 right after the JMP location, replacing
3881		* other instructions such as JMPs for NOOPs. So, relax the
3882		* check a little bit by skipping those different bytes.
3883		*/
3884		if ((bootSect[offset + 1] == NOOP_OPCODE)
3885		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3886		offset = offset + 3;
3887		}
3888		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3889		offset = (boot[2] << 8) + boot[1] + 2;
3890		} else {
3891		return 0;
3892		}
3893
3894	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3895	mdDev += 5;	return 0;
3896
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
3897	return 2;	return 2;
3898	}	}
3899
3900	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3901	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3902	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
3903	strerror(errno));	char buf[65536];
3904		char *end;
3905		char *chptr;
3906		char *chptr2;
3907		int rc;
3908
3909		/* it's on raid; we need to parse /proc/mdstat and check all of the
3910		*raw* devices listed in there */
3911
3912		if (!strncmp(mdDev, "/dev/", 5))
3913		mdDev += 5;
3914
3915		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3916		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3917		strerror(errno));
3918		return 2;
3919		}
3920
3921		rc = read(fd, buf, sizeof(buf) - 1);
3922		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3923		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3924		strerror(errno));
3925		close(fd);
3926		return 2;
3927		}
3928	close(fd);	close(fd);
3929	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
3930
3931	chptr = buf;	chptr = buf;
3932	while (*chptr) {	while (*chptr) {
3933	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
3934	if (!end) break;	if (!end)
3935	*end = '\0';	break;
3936		*end = '\0';
3937
3938		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3939		chptr[strlen(mdDev)] == ' ') {
3940
3941		/* found the device */
3942		while (*chptr && *chptr != ':')
3943		chptr++;
3944		chptr++;
3945		while (*chptr && isspace(*chptr))
3946		chptr++;
3947
3948		/* skip the "active" bit */
3949		while (*chptr && !isspace(*chptr))
3950		chptr++;
3951		while (*chptr && isspace(*chptr))
3952		chptr++;
3953
3954		/* skip the raid level */
3955		while (*chptr && !isspace(*chptr))
3956		chptr++;
3957		while (*chptr && isspace(*chptr))
3958		chptr++;
3959
3960		/* everything else is partition stuff */
3961		while (*chptr) {
3962		chptr2 = chptr;
3963		while (*chptr2 && *chptr2 != '[')
3964		chptr2++;
3965		if (!*chptr2)
3966		break;
3967
3968		/* yank off the numbers at the end */
3969		chptr2--;
3970		while (isdigit(*chptr2) && chptr2 > chptr)
3971		chptr2--;
3972		chptr2++;
3973		*chptr2 = '\0';
3974
3975		/* Better, now we need the /dev/ back. We're
3976		* done with everything before this point, so
3977		* we can just put the /dev/ part there.
3978		* There will always be room. */
3979		memcpy(chptr - 5, "/dev/", 5);
3980		rc = checkDeviceBootloader(chptr - 5, boot);
3981		if (rc != 2) {
3982		return rc;
3983		}
3984
3985		chptr = chptr2 + 1;
3986		/* skip the [11] bit */
3987		while (*chptr && !isspace(*chptr))
3988		chptr++;
3989		/* and move to the next one */
3990		while (*chptr && isspace(*chptr))
3991		chptr++;
3992		}
3993
3994	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
3995	chptr[strlen(mdDev)] == ' ') {	return 2;
3996		}
3997
3998	/* found the device */	chptr = end + 1;
3999	while (*chptr && *chptr != ':') chptr++;	}
4000	chptr++;
4001	while (*chptr && isspace(*chptr)) chptr++;	fprintf(stderr,
4002		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4003	/* skip the "active" bit */	mdDev);
4004	while (*chptr && !isspace(*chptr)) chptr++;	return 0;
4005	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++;
	}
4006
4007	/*  we're good to go */	int checkForLilo(struct grubConfig *config)
4008	return 2;	{
4009		int fd;
4010		unsigned char boot[512];
4011		struct singleLine *line;
4012
4013		for (line = config->theLines; line; line = line->next)
4014		if (line->type == LT_BOOT)
4015		break;
4016
4017		if (!line) {
4018		fprintf(stderr,
4019		_
4020		("grubby: no boot line found in lilo configuration\n"));
4021		return 1;
4022	}	}
4023
4024	chptr = end + 1;	if (line->numElements != 2)
4025	}	return 1;
4026
4027	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4028	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4029	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4030	return 0;	"/boot/boot.b", strerror(errno));
4031	}	return 1;
4032		}
4033
4034	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4035	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4036	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4037	struct singleLine * line;	return 1;
4038		}
4039	for (line = config->theLines; line; line = line->next)	close(fd);
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
4040
4041	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4042		return checkLiloOnRaid(line->elements[1].item, boot);
4043
4044	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4045	if (fd < 0) {	}
4046	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4047	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4048	return 1;	{
4049	}	if (!access("/etc/grub.d/", R_OK))
4050		return 2;
4051
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4052	return 1;	return 1;
4053	}	}
4054	close(fd);
4055		int checkForGrub(struct grubConfig *config)
4056		{
4057		int fd;
4058		unsigned char bootSect[512];
4059		char *boot;
4060		int onSuse = isSuseSystem();
4061
4062		if (onSuse) {
4063		if (parseSuseGrubConf(NULL, &boot))
4064		return 0;
4065		} else {
4066		if (parseSysconfigGrub(NULL, &boot))
4067		return 0;
4068		}
4069
4070		/* assume grub is not installed -- not an error condition */
4071		if (!boot)
4072		return 0;
4073
4074		fd = open("/boot/grub/stage1", O_RDONLY);
4075		if (fd < 0)
4076		/* this doesn't exist if grub hasn't been installed */
4077		return 0;
4078
4079		if (read(fd, bootSect, 512) != 512) {
4080		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4081		"/boot/grub/stage1", strerror(errno));
4082		close(fd);
4083		return 1;
4084		}
4085		close(fd);
4086
4087	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* The more elaborate checks do not work on SuSE. The checks done
4088	return checkLiloOnRaid(line->elements[1].item, boot);	* seem to be reasonble (at least for now), so just return success
4089		*/
4090		if (onSuse)
4091		return 2;
4092
4093	return checkDeviceBootloader(line->elements[1].item, boot);	return checkDeviceBootloader(boot, bootSect);
4094	}	}
4095
4096	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4097	int fd;	{
4098	unsigned char bootSect[512];	int fd;
4099	char * boot;	unsigned char bootSect[512];
4100		char *boot;
4101		char executable[] = "/boot/extlinux/extlinux";
4102
4103		printf("entered: checkForExtLinux()\n");
4104
4105		if (parseSysconfigGrub(NULL, &boot))
4106		return 0;
4107
4108		/* assume grub is not installed -- not an error condition */
4109		if (!boot)
4110		return 0;
4111
4112		fd = open(executable, O_RDONLY);
4113		if (fd < 0)
4114		/* this doesn't exist if grub hasn't been installed */
4115		return 0;
4116
4117		if (read(fd, bootSect, 512) != 512) {
4118		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4119		executable, strerror(errno));
4120		return 1;
4121		}
4122		close(fd);
4123
4124	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4125	return 0;	}
4126
4127	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4128	if (!boot)	{
4129	return 0;	/*
4130		* This is a simplistic check that we consider good enough for own puporses
4131		*
4132		* If we were to properly check if yaboot is *installed* we'd need to:
4133		* 1) get the system boot device (LT_BOOT)
4134		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4135		*    the content on the boot device
4136		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4137		* 4) check again if binary and boot device contents match
4138		*/
4139		if (!access("/etc/yaboot.conf", R_OK))
4140		return 2;
4141
4142	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4143	if (fd < 0)	}
4144	/* this doesn't exist if grub hasn't been installed */
4145	return 0;	int checkForElilo(struct grubConfig *config)
4146		{
4147		if (!access("/etc/elilo.conf", R_OK))
4148		return 2;
4149
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4150	return 1;	return 1;
4151	}	}
	close(fd);
4152
4153	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4154		{
4155		char *idx, *rootspec = NULL;
4156
4157		if (*str == '(') {
4158		idx = rootspec = strdup(str);
4159		while (*idx && (*idx != ')') && (!isspace(*idx)))
4160		idx++;
4161		*(++idx) = '\0';
4162		}
4163		return rootspec;
4164	}	}
4165
4166	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4167	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4168		const char *newKernelInitrd,
4169		const char **extraInitrds, int extraInitrdCount)
4170		{
4171		char *initrdVal, *end;
4172		int i;
4173		size_t totalSize;
4174		size_t prefixLen;
4175		char separatorChar;
4176
4177		prefixLen = strlen(prefix);
4178		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4179
4180		for (i = 0; i < extraInitrdCount; i++) {
4181		totalSize += sizeof(separatorChar);
4182		totalSize += strlen(extraInitrds[i]) - prefixLen;
4183		}
4184
4185		initrdVal = end = malloc(totalSize);
4186
4187		end = stpcpy(end, newKernelInitrd + prefixLen);
4188
4189		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4190		for (i = 0; i < extraInitrdCount; i++) {
4191		const char *extraInitrd;
4192		int j;
4193
4194		extraInitrd = extraInitrds[i] + prefixLen;
4195		/* Don't add entries that are already there */
4196		if (tmplLine != NULL) {
4197		for (j = 2; j < tmplLine->numElements; j++)
4198		if (strcmp
4199		(extraInitrd,
4200		tmplLine->elements[j].item) == 0)
4201		break;
4202
4203	if (*str == '(') {	if (j != tmplLine->numElements)
4204	idx = rootspec = strdup(str);	continue;
4205	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4206	*(++idx) = '\0';
4207	}	*end++ = separatorChar;
4208	return rootspec;	end = stpcpy(end, extraInitrd);
4209		}
4210
4211		return initrdVal;
4212	}	}
4213
4214	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4215	const char * prefix,	const char *prefix,
4216	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4217	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4218	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4219	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4220	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4221	int needs;	{
4222	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4223	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4224	char * chptr;	int needs;
4225	int i;	char *indexs;
4226	enum lineType_e type;	char *chptr;
4227		int rc;
4228	if (!newKernelPath) return 0;
4229		if (!newKernelPath)
4230	/* if the newKernelTitle is too long silently munge it into something	return 0;
4231	* we can live with. truncating is first check, then we'll just mess with
4232	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4233	if (config->cfi->maxTitleLength &&	if (rc < 0)
4234		return 1;
4235
4236		/* if the newKernelTitle is too long silently munge it into something
4237		* we can live with. truncating is first check, then we'll just mess with
4238		* it until it looks better */
4239		if (config->cfi->maxTitleLength &&
4240	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4241	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4242	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4243	int i = 1;	int i = 1;
4244
4245		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4246		newKernelTitle);
4247		while (findEntryByPath(config, buf, NULL, NULL)) {
4248		sprintf(numBuf, "%d", i++);
4249		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4250		}
4251
4252	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	newKernelTitle = buf + 6;
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4253	}	}
4254
4255	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4256	}	new->skip = 0;
4257		new->multiboot = 0;
4258		new->lines = NULL;
4259		entry = config->entries;
4260		for (unsigned int i = 0; i < newIndex; i++) {
4261		if (!entry)
4262		break;
4263		prev = entry;
4264		entry = entry->next;
4265		}
4266		new->next = entry;
4267
4268	new = malloc(sizeof(*new));	if (prev)
4269	new->skip = 0;	prev->next = new;
4270	new->multiboot = 0;	else
4271	new->next = config->entries;	config->entries = new;
	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;
	}
4272
4273	if (template) {	/* copy/update from the template */
4274	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4275	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4276	if (tmplLine->numElements)	needs |= NEED_INITRD;
4277	indent = tmplLine->indent;	if (newMBKernel) {
4278		needs |= NEED_MB;
4279	/* skip comments */	new->multiboot = 1;
4280	chptr = tmplLine->indent;	}
4281	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4282	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4283
4284	/* we don't need an initrd here */	if (template) {
4285	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4286		masterLine && (tmplLine = lineDup(masterLine));
4287	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4288	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4289	struct singleLine *l;	tmplLine->type);
4290	needs &= ~ KERNEL_MB;
4291		/* skip comments */
4292	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4293	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4294	newMBKernel + strlen(prefix));	chptr++;
4295		if (*chptr == '#')
4296	tmplLine = lastLine;	continue;
4297	if (!new->lines) {
4298	new->lines = l;	if (iskernel(tmplLine->type)
4299	} else {	&& tmplLine->numElements >= 2) {
4300	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4301	newLine = l;	/* it's not a multiboot template and
4302	}	* this is the kernel line.  Try to
4303	continue;	* be intelligent about inserting the
4304	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4305	template->multiboot && !new->multiboot) {	*/
4306	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4307	}	/* insert the hypervisor first */
4308		newLine =
4309	if (!new->lines) {	addLine(new, config->cfi,
4310	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4311	new->lines = newLine;	tmplLine->indent,
4312	} else {	newMBKernel +
4313	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4314	newLine = newLine->next;	/* set up for adding the
4315	}	* kernel line */
4316		free(tmplLine->indent);
4317		tmplLine->indent =
4318	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4319	newLine->next = NULL;	secondaryIndent);
4320	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4321	newLine->numElements = tmplLine->numElements;	}
4322	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4323	newLine->numElements);	/* use addLineTmpl to
4324	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4325	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4326	newLine->elements[i].indent =	* call addLine.
4327	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4328	}	* making some changes to the
4329		* template such as the
4330	lastLine = tmplLine;	* indent change above and
4331	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4332	char * repl;	*/
4333	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4334	needs &= ~KERNEL_KERNEL;	getKeywordByType
4335	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4336	} else {	if (mbm_kw) {
4337	needs &= ~KERNEL_MB;	tmplLine->type =
4338	repl = newMBKernel;	LT_MBMODULE;
4339	}	free(tmplLine->
4340	if (new->multiboot && !template->multiboot) {	elements[0].item);
4341	free(newLine->elements[0].item);	tmplLine->elements[0].
4342	newLine->elements[0].item = strdup("module");	item =
4343	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4344	}	}
4345	free(newLine->elements[1].item);	newLine =
4346	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4347	if (rootspec != NULL) {	newLine,
4348	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4349	rootspec,	strlen(prefix),
4350	repl +	config->cfi);
4351	strlen(prefix));	needs &= ~NEED_KERNEL;
4352	} else {	}
4353	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4354	strlen(prefix));	newLine =
4355	}	addLine(new, config->cfi,
4356	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4357	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4358	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4359	if (!new->multiboot && template->multiboot) {	newMBKernel +
4360	free(newLine->elements[0].item);	strlen(prefix));
4361	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4362	newLine->type = LT_KERNEL;	}
4363	}	} else if (needs & NEED_KERNEL) {
4364	free(newLine->elements[1].item);	newLine =
4365	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4366	if (rootspec != NULL) {	newKernelPath +
4367	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4368	rootspec,	config->cfi);
4369	newKernelPath +	needs &= ~NEED_KERNEL;
4370	strlen(prefix));	}
4371	} else {
4372	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4373	strlen(prefix));	tmplLine->numElements >= 2) {
4374	}	if (needs & NEED_MB) {
4375	} else if (tmplLine->type == LT_INITRD &&	newLine =
4376	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4377	needs &= ~KERNEL_INITRD;	newMBKernel +
4378	free(newLine->elements[1].item);	strlen(prefix),
4379	if (new->multiboot && !template->multiboot) {	config->cfi);
4380	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4381	newLine->elements[0].item = strdup("module");	}
4382	newLine->type = LT_MBMODULE;
4383	}	} else if (tmplLine->type == LT_MBMODULE &&
4384	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4385	if (rootspec != NULL) {	if (new->multiboot) {
4386	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4387	rootspec,	newLine =
4388	newKernelInitrd +	addLineTmpl(new, tmplLine,
4389	strlen(prefix));	newLine,
4390	} else {	newKernelPath +
4391	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4392	strlen(prefix));	config->cfi);
4393	}	needs &= ~NEED_KERNEL;
4394	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4395	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4396	needs &= ~KERNEL_INITRD;	char *initrdVal;
4397	if (!new->multiboot && template->multiboot) {	initrdVal =
4398	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4399	newLine->elements[0].item = strdup("initrd");	tmplLine,
4400	newLine->type = LT_INITRD;	newKernelInitrd,
4401	}	extraInitrds,
4402	free(newLine->elements[1].item);	extraInitrdCount);
4403	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4404	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4405	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4406	rootspec,	initrdVal,
4407	newKernelInitrd +	config->cfi);
4408	strlen(prefix));	free(initrdVal);
4409	} else {	needs &= ~NEED_INITRD;
4410	newLine->elements[1].item = strdup(newKernelInitrd +	}
4411	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4412	}	/* template is multi but new is not,
4413	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4414	tmplLine->numElements >= 2) {	* module slot
4415	needs &= ~KERNEL_TITLE;	*/
4416		tmplLine->type =
4417	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4418	free(newLine->elements[i].item);	config->cfi);
4419	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4420	}	tmplLine->elements[0].item =
4421		strdup(getKeywordByType
4422	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4423	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4424	newLine->numElements = 2;	newLine =
4425	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4426	config->cfi->titleBracketed &&	newKernelPath +
4427	tmplLine->numElements == 1) {	strlen(prefix),
4428	needs &= ~KERNEL_TITLE;	config->cfi);
4429	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4430	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4431	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4432	newLine->numElements);	/* template is multi but new is not,
4433		* insert the initrd in the second
4434	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4435	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4436	newLine->elements[0].indent = strdup("");	tmplLine->type =
4437	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4438	}	config->cfi);
4439	}	free(tmplLine->elements[0].item);
4440	} else {	tmplLine->elements[0].item =
4441	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4442	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4443	break;	config->cfi)->key);
4444	}	initrdVal =
4445		getInitrdVal(config, prefix,
4446		tmplLine,
4447		newKernelInitrd,
4448		extraInitrds,
4449		extraInitrdCount);
4450		newLine =
4451		addLineTmpl(new, tmplLine, newLine,
4452		initrdVal, config->cfi);
4453		free(initrdVal);
4454		needs &= ~NEED_INITRD;
4455		}
4456
4457		} else if (isinitrd(tmplLine->type)
4458		&& tmplLine->numElements >= 2) {
4459		if (needs & NEED_INITRD && new->multiboot
4460		&& !template->multiboot
4461		&& config->cfi->mbInitRdIsModule) {
4462		/* make sure we don't insert the
4463		* module initrd before the module
4464		* kernel... if we don't do it here,
4465		* it will be inserted following the
4466		* template.
4467		*/
4468		if (!needs & NEED_KERNEL) {
4469		char *initrdVal;
4470
4471		initrdVal =
4472		getInitrdVal(config, prefix,
4473		tmplLine,
4474		newKernelInitrd,
4475		extraInitrds,
4476		extraInitrdCount);
4477		newLine =
4478		addLine(new, config->cfi,
4479		LT_MBMODULE,
4480		config->
4481		secondaryIndent,
4482		initrdVal);
4483		free(initrdVal);
4484		needs &= ~NEED_INITRD;
4485		}
4486		} else if (needs & NEED_INITRD) {
4487		char *initrdVal;
4488		initrdVal =
4489		getInitrdVal(config, prefix,
4490		tmplLine,
4491		newKernelInitrd,
4492		extraInitrds,
4493		extraInitrdCount);
4494		newLine =
4495		addLineTmpl(new, tmplLine, newLine,
4496		initrdVal, config->cfi);
4497		free(initrdVal);
4498		needs &= ~NEED_INITRD;
4499		}
4500
4501		} else if (tmplLine->type == LT_MENUENTRY &&
4502		(needs & NEED_TITLE)) {
4503		requote(tmplLine, config->cfi);
4504		char *nkt = malloc(strlen(newKernelTitle) + 3);
4505		strcpy(nkt, "'");
4506		strcat(nkt, newKernelTitle);
4507		strcat(nkt, "'");
4508		newLine =
4509		addLineTmpl(new, tmplLine, newLine, nkt,
4510		config->cfi);
4511		free(nkt);
4512		needs &= ~NEED_TITLE;
4513		} else if (tmplLine->type == LT_TITLE &&
4514		(needs & NEED_TITLE)) {
4515		if (tmplLine->numElements >= 2) {
4516		newLine =
4517		addLineTmpl(new, tmplLine, newLine,
4518		newKernelTitle,
4519		config->cfi);
4520		needs &= ~NEED_TITLE;
4521		} else if (tmplLine->numElements == 1 &&
4522		config->cfi->titleBracketed) {
4523		/* addLineTmpl doesn't handle
4524		* titleBracketed */
4525		newLine =
4526		addLine(new, config->cfi, LT_TITLE,
4527		tmplLine->indent,
4528		newKernelTitle);
4529		needs &= ~NEED_TITLE;
4530		}
4531		} else if (tmplLine->type == LT_ECHO) {
4532		requote(tmplLine, config->cfi);
4533		static const char *prefix = "'Loading ";
4534		if (tmplLine->numElements > 1 &&
4535		strstr(tmplLine->elements[1].item, prefix)
4536		&& masterLine->next
4537		&& iskernel(masterLine->next->type)) {
4538		char *newTitle =
4539		malloc(strlen(prefix) +
4540		strlen(newKernelTitle) + 2);
4541
4542		strcpy(newTitle, prefix);
4543		strcat(newTitle, newKernelTitle);
4544		strcat(newTitle, "'");
4545		newLine =
4546		addLine(new, config->cfi, LT_ECHO,
4547		tmplLine->indent, newTitle);
4548		free(newTitle);
4549		} else {
4550		/* pass through other lines from the
4551		* template */
4552		newLine =
4553		addLineTmpl(new, tmplLine, newLine,
4554		NULL, config->cfi);
4555		}
4556		} else if (tmplLine->type == LT_DEVTREE &&
4557		tmplLine->numElements == 2
4558		&& newDevTreePath) {
4559		newLine =
4560		addLineTmpl(new, tmplLine, newLine,
4561		newDevTreePath + strlen(prefix),
4562		config->cfi);
4563		needs &= ~NEED_DEVTREE;
4564		} else if (tmplLine->type == LT_ENTRY_END
4565		&& needs & NEED_DEVTREE) {
4566		const char *ndtp = newDevTreePath;
4567		if (!strncmp
4568		(newDevTreePath, prefix, strlen(prefix)))
4569		ndtp += strlen(prefix);
4570		newLine = addLine(new, config->cfi, LT_DEVTREE,
4571		config->secondaryIndent,
4572		ndtp);
4573		needs &= ~NEED_DEVTREE;
4574		newLine =
4575		addLineTmpl(new, tmplLine, newLine, NULL,
4576		config->cfi);
4577		} else {
4578		/* pass through other lines from the template */
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, NULL,
4581		config->cfi);
4582		}
4583		}
4584
4585	switch (config->cfi->keywords[i].type) {	} else {
4586	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4587	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4588	type = LT_KERNEL; break;	*/
4589	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4590	type = LT_TITLE; break;	case LT_KERNEL:
4591	default:	case LT_KERNEL_EFI:
4592	/* zipl strikes again */	case LT_KERNEL_16:
4593	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4594	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4595	chptr = newKernelTitle;	} else {
4596	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4597	break;	preferredLineType(LT_KERNEL,
4598	} else {	config->
4599	abort();	cfi),
4600	}	config->primaryIndent,
4601	}	newKernelPath +
4602		strlen(prefix));
4603	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	needs &= ~NEED_KERNEL;
4604	new->lines = newLine;	break;
4605	}	}
4606
4607	if (new->multiboot) {	case LT_HYPER:
4608	if (needs & KERNEL_MB)	newLine = addLine(new, config->cfi, LT_HYPER,
4609	newLine = addLine(new, config->cfi, LT_KERNEL,	config->primaryIndent,
4610	config->secondaryIndent,	newMBKernel + strlen(prefix));
4611	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4612	if (needs & KERNEL_KERNEL)	break;
4613	newLine = addLine(new, config->cfi, LT_MBMODULE,
4614	config->secondaryIndent,	case LT_MENUENTRY:{
4615	newKernelPath + strlen(prefix));	char *nkt = malloc(strlen(newKernelTitle) + 3);
4616	/* don't need to check for title as it's guaranteed to have been	strcpy(nkt, "'");
4617	* done as we only do multiboot with grub which uses title as	strcat(nkt, newKernelTitle);
4618	* a separator */	strcat(nkt, "'");
4619	if (needs & KERNEL_INITRD && newKernelInitrd)	newLine =
4620	newLine = addLine(new, config->cfi, LT_MBMODULE,	addLine(new, config->cfi, LT_MENUENTRY,
4621	config->secondaryIndent,	config->primaryIndent, nkt);
4622	newKernelInitrd + strlen(prefix));	free(nkt);
4623	} else {	needs &= ~NEED_TITLE;
4624	if (needs & KERNEL_KERNEL)	needs |= NEED_END;
4625	newLine = addLine(new, config->cfi, LT_KERNEL,	break;
4626	config->secondaryIndent,	}
4627	newKernelPath + strlen(prefix));	case LT_TITLE:
4628	if (needs & KERNEL_TITLE)	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4629	newLine = addLine(new, config->cfi, LT_TITLE,	char *templabel;
4630	config->secondaryIndent,	int x = 0, y = 0;
4631	newKernelTitle);
4632	if (needs & KERNEL_INITRD && newKernelInitrd)	templabel = strdup(newKernelTitle);
4633	newLine = addLine(new, config->cfi, LT_INITRD,	while (templabel[x]) {
4634	config->secondaryIndent,	if (templabel[x] == ' ') {
4635	newKernelInitrd + strlen(prefix));	y = x;
4636	}	while (templabel[y]) {
4637		templabel[y] =
4638		templabel[y + 1];
4639		y++;
4640		}
4641		}
4642		x++;
4643		}
4644		newLine = addLine(new, config->cfi, LT_TITLE,
4645		config->primaryIndent,
4646		templabel);
4647		free(templabel);
4648		} else {
4649		newLine = addLine(new, config->cfi, LT_TITLE,
4650		config->primaryIndent,
4651		newKernelTitle);
4652		}
4653		needs &= ~NEED_TITLE;
4654		break;
4655
4656	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	default:
4657	newMBKernelArgs, NULL)) return 1;	abort();
4658		}
4659		}
4660
4661	return 0;	struct singleLine *endLine = NULL;
4662		endLine = getLineByType(LT_ENTRY_END, new->lines);
4663		if (endLine) {
4664		removeLine(new, endLine);
4665		needs |= NEED_END;
4666		}
4667
4668		/* add the remainder of the lines, i.e. those that either
4669		* weren't present in the template, or in the case of no template,
4670		* all the lines following the entryStart.
4671		*/
4672		if (needs & NEED_TITLE) {
4673		newLine = addLine(new, config->cfi, LT_TITLE,
4674		config->secondaryIndent, newKernelTitle);
4675		needs &= ~NEED_TITLE;
4676		}
4677		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4678		newLine = addLine(new, config->cfi, LT_HYPER,
4679		config->secondaryIndent,
4680		newMBKernel + strlen(prefix));
4681		needs &= ~NEED_MB;
4682		}
4683		if (needs & NEED_KERNEL) {
4684		newLine = addLine(new, config->cfi,
4685		(new->multiboot
4686		&& getKeywordByType(LT_MBMODULE,
4687		config->cfi))
4688		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4689		config->
4690		cfi),
4691		config->secondaryIndent,
4692		newKernelPath + strlen(prefix));
4693		needs &= ~NEED_KERNEL;
4694		}
4695		if (needs & NEED_MB) {
4696		newLine = addLine(new, config->cfi, LT_HYPER,
4697		config->secondaryIndent,
4698		newMBKernel + strlen(prefix));
4699		needs &= ~NEED_MB;
4700		}
4701		if (needs & NEED_INITRD) {
4702		char *initrdVal;
4703		initrdVal =
4704		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4705		extraInitrds, extraInitrdCount);
4706		newLine =
4707		addLine(new, config->cfi,
4708		(new->multiboot
4709		&& getKeywordByType(LT_MBMODULE, config->cfi))
4710		? LT_MBMODULE : preferredLineType(LT_INITRD,
4711		config->cfi),
4712		config->secondaryIndent, initrdVal);
4713		free(initrdVal);
4714		needs &= ~NEED_INITRD;
4715		}
4716		if (needs & NEED_DEVTREE) {
4717		newLine = addLine(new, config->cfi, LT_DEVTREE,
4718		config->secondaryIndent, newDevTreePath);
4719		needs &= ~NEED_DEVTREE;
4720		}
4721
4722		/* NEEDS_END must be last on bootloaders that need it... */
4723		if (needs & NEED_END) {
4724		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4725		config->secondaryIndent, NULL);
4726		needs &= ~NEED_END;
4727		}
4728
4729		if (needs) {
4730		printf(_("grubby: needs=%d, aborting\n"), needs);
4731		abort();
4732		}
4733
4734		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4735		newMBKernelArgs, NULL)) {
4736		config->isModified = 1;
4737		return 1;
4738		}
4739
4740		return 0;
4741	}	}
4742
4743	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4744	poptContext optCon;	{
4745	char * grubConfig = NULL;	poptContext optCon;
4746	char * outputFile = NULL;	const char *grubConfig = NULL;
4747	int arg = 0;	char *outputFile = NULL;
4748	int flags = 0;	int arg = 0;
4749	int badImageOkay = 0;	int flags = 0;
4750	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4751	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4752	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4753	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4754	char * newKernelPath = NULL;	int configureExtLinux = 0;
4755	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4756	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4757	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4758	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4759	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4760	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4761	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4762	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4763	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4764	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4765	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4766	char * removeArgs = NULL;	int newIndex = 0;
4767	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4768	const char * chptr = NULL;	char *removeMBKernel = NULL;
4769	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4770	struct grubConfig * config;	char *defaultKernel = NULL;
4771	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4772	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4773	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4774	struct poptOption options[] = {	char *envPath = NULL;
4775	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4776	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4777	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4778	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4779	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4780	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4781	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4782	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4783	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4784	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4785	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4786	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4787	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4788	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4789	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4790	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4791	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4792	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4793	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4794		"new arguments for multiboot kernel being updated"), NULL},
4795		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4796		_
4797		("don't sanity check images in boot entries (for testing only)"),
4798		NULL},
4799		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4800		_
4801		("filesystem which contains /boot directory (for testing only)"),
4802		_("bootfs")},
4803		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4804		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4805		_("check which bootloader is installed on boot sector")},
4806	#endif	#endif
4807	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4808	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4809	_("path") },	_("path")},
4810	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4811	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4812	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4813	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4814	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4815	"template"), NULL },	"template"), NULL},
4816	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4817	_("display the path of the default kernel") },	_("print debugging information for failures")},
4818	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4819	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4820	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4821	_("configure grub bootloader") },	_("display the index of the default kernel")},
4822	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4823	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4824	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4825	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4826	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4827	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4828	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4829	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4830	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4831	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4832	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4833	_("path") },	_("path for environment data"),
4834	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4835	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4836	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4837	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4838	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4839	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4840	_("kernel-path") },	_("configure grub2 bootloader")},
4841	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4842	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4843	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4844	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4845	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4846	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4847	_("configure silo bootloader") },	_
4848	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4849	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4850	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4851	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4852	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4853	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4854	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4855	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4856	_("configure yaboot bootloader") },	_("path")},
4857	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4858	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4859	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4860	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4861	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4862		_("remove all entries for the specified kernel"),
4863	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4864	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4865		_("remove all entries for the specified multiboot kernel"),
4866	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4867	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4868	case 'v':	_("make the first entry referencing the specified kernel "
4869	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
4870	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4871	break;	_("make the given entry index the default entry"),
4872		_("entry-index")},
4873		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4874		_("use the given index when creating a new entry"),
4875		_("entry-index")},
4876		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4877		_("configure silo bootloader")},
4878		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4879		_("title to use for the new kernel entry"), _("entry-title")},
4880		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4881		_("updated information for the specified kernel"),
4882		_("kernel-path")},
4883		{"version", 'v', 0, NULL, 'v',
4884		_("print the version of this program and exit"), NULL},
4885		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4886		_("configure yaboot bootloader")},
4887		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4888		_("configure zipl bootloader")},
4889		POPT_AUTOHELP {0, 0, 0, 0, 0}
4890		};
4891
4892		useextlinuxmenu = 0;
4893
4894		int i = 0;
4895		for (int j = 1; j < argc; j++)
4896		i += strlen(argv[j]) + 1;
4897		saved_command_line = malloc(i);
4898		if (!saved_command_line) {
4899		fprintf(stderr, "grubby: %m\n");
4900		exit(1);
4901		}
4902		saved_command_line[0] = '\0';
4903		for (int j = 1; j < argc; j++) {
4904		strcat(saved_command_line, argv[j]);
4905		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4906		}
4907
4908		optCon = poptGetContext("grubby", argc, argv, options, 0);
4909		poptReadDefaultConfig(optCon, 1);
4910
4911		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4912		switch (arg) {
4913		case 'v':
4914		printf("grubby version %s\n", VERSION);
4915		exit(0);
4916		break;
4917		case 'i':
4918		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4919		extraInitrds[extraInitrdCount++] =
4920		strdup(poptGetOptArg(optCon));
4921		} else {
4922		fprintf(stderr,
4923		_
4924		("grubby: extra initrd maximum is %d\n"),
4925		extraInitrdCount);
4926		return 1;
4927		}
4928		break;
4929		}
4930	}	}
	}
4931
4932	if (arg < -1) {	if (arg < -1) {
4933	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4934	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4935	poptStrerror(arg));	poptStrerror(arg));
4936	return 1;	return 1;
4937	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
4938
4939	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
4940	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4941	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
4942	return 1;	}
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureLilo) {
	cfi = &liloConfigType;
	} else if (configureGrub) {
	cfi = &grubConfigType;
	} else if (configureELilo) {
	cfi = &eliloConfigType;
	} else if (configureYaboot) {
	cfi = &yabootConfigType;
	} else if (configureSilo) {
	cfi = &siloConfigType;
	} else if (configureZipl) {
	cfi = &ziplConfigType;
	}
4943
4944	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
4945	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
4946	cfi = &eliloConfigType;	configureExtLinux) > 1) {
4947	#elif __powerpc__	fprintf(stderr,
4948	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
4949	#elif __sparc__	return 1;
4950	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
4951	#elif __s390__	fprintf(stderr,
4952	cfi = &ziplConfigType;	_
4953	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
4954	cfi = &ziplConfigtype;	return 1;
4955	#else	} else if (configureGrub2) {
4956	cfi = &grubConfigType;	cfi = &grub2ConfigType;
4957	#endif	if (envPath)
4958	}	cfi->envFile = envPath;
4959		} else if (configureLilo) {
4960		cfi = &liloConfigType;
4961		} else if (configureGrub) {
4962		cfi = &grubConfigType;
4963		} else if (configureELilo) {
4964		cfi = &eliloConfigType;
4965		} else if (configureYaboot) {
4966		cfi = &yabootConfigType;
4967		} else if (configureSilo) {
4968		cfi = &siloConfigType;
4969		} else if (configureZipl) {
4970		cfi = &ziplConfigType;
4971		} else if (configureExtLinux) {
4972		cfi = &extlinuxConfigType;
4973		useextlinuxmenu = 1;
4974		}
4975
4976		if (!cfi) {
4977		if (grub2FindConfig(&grub2ConfigType)) {
4978		cfi = &grub2ConfigType;
4979		if (envPath)
4980		cfi->envFile = envPath;
4981		} else
4982		#ifdef __ia64__
4983		cfi = &eliloConfigType;
4984		#elif __powerpc__
4985		cfi = &yabootConfigType;
4986		#elif __sparc__
4987		cfi = &siloConfigType;
4988		#elif __s390__
4989		cfi = &ziplConfigType;
4990		#elif __s390x__
4991		cfi = &ziplConfigtype;
4992		#else
4993		cfi = &grubConfigType;
4994		#endif
4995		}
4996
4997	if (!grubConfig)	if (!grubConfig) {
4998	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
4999		grubConfig = cfi->findConfig(cfi);
5000		if (!grubConfig)
5001		grubConfig = cfi->defaultConfig;
5002		}
5003
5004	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5005	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5006	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5007	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5008		|| (defaultIndex >= 0))) {
5009		fprintf(stderr,
5010		_("grubby: --bootloader-probe may not be used with "
5011	"specified option"));	"specified option"));
5012	return 1;	return 1;
5013	}	}
5014
5015	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5016	removeKernelPath)) {	removeKernelPath)) {
5017	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5018	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5019	return 1;	return 1;
5020	}	}
5021
5022	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5023	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5024	return 1;	return 1;
5025	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5026	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5027	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5028	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5029	return 1;	return 1;
5030	}	}
5031
5032	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5033	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5034	"not be used together"));	"not be used together"));
5035	return 1;	return 1;
5036	}	}
5037
5038	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5039	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5040		"may not be used together\n"));
5041		return 1;
5042		} else if (defaultKernel && removeKernelPath &&
5043		!strcmp(defaultKernel, removeKernelPath)) {
5044		fprintf(stderr,
5045		_("grubby: cannot make removed kernel the default\n"));
5046		return 1;
5047		} else if (defaultKernel && newKernelPath &&
5048		!strcmp(defaultKernel, newKernelPath)) {
5049		makeDefault = 1;
5050		defaultKernel = NULL;
5051		} else if (defaultKernel && (defaultIndex >= 0)) {
5052		fprintf(stderr,
5053		_("grubby: --set-default and --set-default-index "
5054	"may not be used together\n"));	"may not be used together\n"));
5055	return 1;	return 1;
5056	} 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;
	}
5057
5058	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5059	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5060	"is used\n"));	_("grubby: output file must be specified if stdin "
5061	return 1;	"is used\n"));
5062	}	return 1;
5063		}
5064
5065	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5066	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5067	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5068	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5069	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5070	}	return 1;
5071		}
5072
5073	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5074
5075	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5076	if (!bootPrefix) {	if (!bootPrefix) {
5077	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5078	if (!bootPrefix) return 1;	if (!bootPrefix)
5079	} else {	return 1;
5080	/* this shouldn't end with a / */	} else {
5081	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5082	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5083		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5084		}
5085		} else {
5086		bootPrefix = "";
5087	}	}
	} else {
	bootPrefix = "";
	}
5088
5089	if (bootloaderProbe) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5090	int lrc = 0, grc = 0;	fprintf(stderr,
5091	struct grubConfig * lconfig, * gconfig;	_("grubby: %s doesn't allow multiple initrds\n"),
5092		cfi->defaultConfig);
5093	if (!access(grubConfigType.defaultConfig, F_OK)) {	return 1;
5094	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);
	}
5095
5096	if (lrc == 1 || grc == 1) return 1;	if (bootloaderProbe) {
5097		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5098		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5099
5100		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5101		if (grub2config) {
5102		gconfig = readConfig(grub2config, &grub2ConfigType);
5103		if (!gconfig)
5104		gr2c = 1;
5105		else
5106		gr2c = checkForGrub2(gconfig);
5107		}
5108
5109	if (lrc == 2) printf("lilo\n");	const char *grubconfig = grubFindConfig(&grubConfigType);
5110	if (grc == 2) printf("grub\n");	if (!access(grubconfig, F_OK)) {
5111		gconfig = readConfig(grubconfig, &grubConfigType);
5112		if (!gconfig)
5113		grc = 1;
5114		else
5115		grc = checkForGrub(gconfig);
5116		}
5117
5118	return 0;	if (!access(liloConfigType.defaultConfig, F_OK)) {
5119	}	lconfig =
5120		readConfig(liloConfigType.defaultConfig,
5121		&liloConfigType);
5122		if (!lconfig)
5123		lrc = 1;
5124		else
5125		lrc = checkForLilo(lconfig);
5126		}
5127
5128	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5129	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5130		&eliloConfigType);
5131		if (!econfig)
5132		erc = 1;
5133		else
5134		erc = checkForElilo(econfig);
5135		}
5136
5137	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5138	struct singleLine * line;	lconfig =
5139	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5140	char * rootspec;	&extlinuxConfigType);
5141		if (!lconfig)
5142	if (config->defaultImage == -1) return 0;	extrc = 1;
5143	entry = findEntryByIndex(config, config->defaultImage);	else
5144	if (!entry) return 0;	extrc = checkForExtLinux(lconfig);
5145	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));
5146
5147	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5148	} else if (kernelInfo)	yconfig = readConfig(yabootConfigType.defaultConfig,
5149	return displayInfo(config, kernelInfo, bootPrefix);	&yabootConfigType);
5150		if (!yconfig)
5151		yrc = 1;
5152		else
5153		yrc = checkForYaboot(yconfig);
5154		}
5155
5156	if (copyDefault) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5157	template = findTemplate(config, bootPrefix, NULL, 0, flags);	|| erc == 1)
5158	if (!template) return 1;	return 1;
5159	}
5160		if (lrc == 2)
5161		printf("lilo\n");
5162		if (gr2c == 2)
5163		printf("grub2\n");
5164		if (grc == 2)
5165		printf("grub\n");
5166		if (extrc == 2)
5167		printf("extlinux\n");
5168		if (yrc == 2)
5169		printf("yaboot\n");
5170		if (erc == 2)
5171		printf("elilo\n");
5172
5173		return 0;
5174		}
5175
5176		if (grubConfig == NULL) {
5177		printf("Could not find bootloader configuration file.\n");
5178		exit(1);
5179		}
5180
5181	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5182	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5183	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5184	bootPrefix, flags);
5185	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5186	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5187	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5188	if (addNewKernel(config, template, bootPrefix, newKernelPath,	char *rootspec;
5189	newKernelTitle, newKernelArgs, newKernelInitrd,
5190	newMBKernel, newMBKernelArgs)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5191		return 0;
5192		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5193	if (numEntries(config) == 0) {	cfi->defaultIsSaved)
5194	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	config->defaultImage = FIRST_ENTRY_INDEX;
5195	"Not writing out new config.\n"));	entry = findEntryByIndex(config, config->defaultImage);
5196	return 1;	if (!entry)
5197	}	return 0;
5198		if (!suitableImage(entry, bootPrefix, 0, flags))
5199		return 0;
5200
5201		line =
5202		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5203		LT_KERNEL_16, entry->lines);
5204		if (!line)
5205		return 0;
5206
5207		rootspec = getRootSpecifier(line->elements[1].item);
5208		printf("%s%s\n", bootPrefix, line->elements[1].item +
5209		((rootspec != NULL) ? strlen(rootspec) : 0));
5210
5211		return 0;
5212
5213		} else if (displayDefaultTitle) {
5214		struct singleLine *line;
5215		struct singleEntry *entry;
5216
5217		if (config->defaultImage == NO_DEFAULT_ENTRY)
5218		return 0;
5219		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5220		cfi->defaultIsSaved)
5221		config->defaultImage = FIRST_ENTRY_INDEX;
5222		entry = findEntryByIndex(config, config->defaultImage);
5223		if (!entry)
5224		return 0;
5225
5226		if (!configureGrub2) {
5227		char *title;
5228		line = getLineByType(LT_TITLE, entry->lines);
5229		if (!line)
5230		return 0;
5231		title = extractTitle(config, line);
5232		if (!title)
5233		return 0;
5234		printf("%s\n", title);
5235		free(title);
5236		} else {
5237		char *title;
5238
5239		dbgPrintf
5240		("This is GRUB2, default title is embeded in menuentry\n");
5241		line = getLineByType(LT_MENUENTRY, entry->lines);
5242		if (!line)
5243		return 0;
5244		title = grub2ExtractTitle(line);
5245		if (title)
5246		printf("%s\n", title);
5247		}
5248		return 0;
5249
5250		} else if (displayDefaultIndex) {
5251		if (config->defaultImage == NO_DEFAULT_ENTRY)
5252		return 0;
5253		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5254		cfi->defaultIsSaved)
5255		config->defaultImage = FIRST_ENTRY_INDEX;
5256		printf("%i\n", config->defaultImage);
5257		return 0;
5258
5259		} else if (kernelInfo)
5260		return displayInfo(config, kernelInfo, bootPrefix);
5261
5262		if (copyDefault) {
5263		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5264		if (!template)
5265		return 1;
5266		}
5267
5268		markRemovedImage(config, removeKernelPath, bootPrefix);
5269		markRemovedImage(config, removeMBKernel, bootPrefix);
5270		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5271		makeDefault, bootPrefix, flags, defaultIndex);
5272		setFallbackImage(config, newKernelPath != NULL);
5273		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5274		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5275		return 1;
5276		if (updateKernelPath && newKernelInitrd) {
5277		if (newMBKernel) {
5278		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5279		bootPrefix, newKernelInitrd,
5280		newKernelTitle))
5281		return 1;
5282		} else {
5283		if (updateInitrd(config, updateKernelPath, bootPrefix,
5284		newKernelInitrd, newKernelTitle))
5285		return 1;
5286		}
5287		}
5288		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5289		newKernelTitle, newKernelArgs, newKernelInitrd,
5290		(const char **)extraInitrds, extraInitrdCount,
5291		newMBKernel, newMBKernelArgs, newDevTreePath,
5292		newIndex))
5293		return 1;
5294
5295		if (numEntries(config) == 0) {
5296		fprintf(stderr,
5297		_("grubby: doing this would leave no kernel entries. "
5298		"Not writing out new config.\n"));
5299		return 1;
5300		}
5301
5302	if (!outputFile)	if (!outputFile)
5303	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5304
5305	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5306	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3019