Diff of /trunk/grubby/grubby.c

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	trunk/mkinitrd-magellan/grubby/grubby.c revision 532 by niro, Sat Sep 1 22:45:15 2007 UTC	trunk/grubby/grubby.c revision 3021 by niro, Tue Jun 27 14:39:37 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;
2233	*index = i;
2234	} else {	i = 0;
2235	if (index)	if (index) {
2236	i = *index;	while (i < *index) {
2237	else	i++;
2238	i = 0;	if (indexVars[i] == -1)
2239		return NULL;
2240		}
2241		}
2242
2243		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	if (!strncmp(kernel, "TITLE=", 6)) {	for (entry = findEntryByIndex(config, i); entry;
2295	prefix = "";	entry = entry->next, i++) {
2296	checkType = LT_TITLE;	if (entry->skip)
2297	kernel += 6;	continue;
2298	}
2299		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2300	while ((entry = findEntryByIndex(config, i))) {	checkType, kernel, entry);
2301	line = entry->lines;
2302	while (line && line->type != checkType) line=line->next;	/* check all the lines matching checkType */
2303		for (line = entry->lines; line; line = line->next) {
2304		enum lineType_e ct = checkType;
2305	if (line && line->numElements >= 2 && !entry->skip) {	if (entry->multiboot && checkType == LT_KERNEL)
2306	rootspec = getRootSpecifier(line->elements[1].item);	ct = LT_KERNEL | LT_KERNEL_EFI |
2307	if (!strcmp(line->elements[1].item  +	LT_MBMODULE | LT_HYPER |
2308	((rootspec != NULL) ? strlen(rootspec) : 0),	LT_KERNEL_16;
2309	kernel + strlen(prefix)))	else if (checkType & LT_KERNEL)
2310	break;	ct = checkType | LT_KERNEL_EFI |
2311	}	LT_KERNEL_16;
2312		line = getLineByType(ct, line);
2313	/* have to check multiboot lines too */	if (!line)
2314	if (entry->multiboot) {	break; /* not found in this entry */
2315	while (line && line->type != LT_MBMODULE) line = line->next;
2316	if (line && line->numElements >= 2 && !entry->skip) {	if (line && line->type != LT_MENUENTRY &&
2317	rootspec = getRootSpecifier(line->elements[1].item);	line->numElements >= 2) {
2318	if (!strcmp(line->elements[1].item  +	rootspec =
2319	((rootspec != NULL) ? strlen(rootspec) : 0),	getRootSpecifier(line->elements[1].
2320	kernel + strlen(prefix)))	item);
2321	break;	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	i++;	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 isAddingBootEntry,
2505	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	const char *defaultKernelPath, int newBootEntryIsDefault,
2506	config->defaultImage = i;	const char *prefix, int flags,
2507		int newDefaultBootEntryIndex, int newBootEntryIndex)
2508		{
2509		struct singleEntry *bootEntry, *newDefault;
2510		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2511
2512		/* handle the two cases where the user explictly picks the default
2513		* boot entry index as it would exist post-modification */
2514
2515		/* Case 1: user chose to make the latest boot entry the default */
2516		if (newBootEntryIsDefault) {
2517		config->defaultImage = newBootEntryIndex;
2518		return;
2519		}
2520
2521		/* Case 2: user picked an arbitrary index as the default boot entry */
2522		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2523		&& config->cfi->defaultIsIndex) {
2524		indexToVerify = newDefaultBootEntryIndex;
2525
2526		/* user chose to make latest boot entry the default */
2527		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2528		config->defaultImage = newBootEntryIndex;
2529		return;
2530		}
2531
2532		/* the user picks the default index based on the
2533		* order of the bootloader configuration after
2534		* modification; ensure we are checking for the
2535		* existence of the correct entry */
2536		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2537		if (!config->isModified)
2538		indexToVerify--;
2539		}
2540
2541		/* verify the user selected index will exist */
2542		if (findEntryByIndex(config, indexToVerify)) {
2543		config->defaultImage = newDefaultBootEntryIndex;
2544		} else {
2545		config->defaultImage = NO_DEFAULT_ENTRY;
2546		}
2547
2548		return;
2549		}
2550
2551		/* handle cases where the index value may shift */
2552
2553		/* check validity of existing default or first-entry-found
2554		selection */
2555		if (defaultKernelPath) {
2556		/* user requested first-entry-found */
2557		if (!findEntryByPath(config, defaultKernelPath,
2558		prefix, &firstKernelEntryIndex)) {
2559		/* don't change default if can't find match */
2560		config->defaultImage = NO_DEFAULT_ENTRY;
2561		return;
2562		}
2563
2564		config->defaultImage = firstKernelEntryIndex;
2565
2566		/* this is where we start looking for decrement later */
2567		currentLookupIndex = config->defaultImage;
2568
2569		if (isAddingBootEntry && !config->isModified &&
2570		(newBootEntryIndex < config->defaultImage)) {
2571		/* increment because new entry added before default */
2572		config->defaultImage++;
2573		}
2574	} else {	} else {
2575	config->defaultImage = -1;	/* use pre-existing default entry */
2576	return;	currentLookupIndex = config->defaultImage;
2577
2578		if (isAddingBootEntry
2579		&& (newBootEntryIndex <= config->defaultImage)) {
2580		config->defaultImage++;
2581
2582		if (config->isModified) {
2583		currentLookupIndex++;
2584		}
2585		}
2586		}
2587
2588		/* sanity check - is this entry index valid? */
2589		bootEntry = findEntryByIndex(config, currentLookupIndex);
2590
2591		if ((bootEntry && bootEntry->skip) || !bootEntry) {
2592		/* entry is to be skipped or is invalid */
2593		if (isAddingBootEntry) {
2594		config->defaultImage = newBootEntryIndex;
2595		return;
2596		}
2597		newDefault =
2598		findTemplate(config, prefix, &config->defaultImage, 1,
2599		flags);
2600		if (!newDefault) {
2601		config->defaultImage = NO_DEFAULT_ENTRY;
2602		}
2603
2604		return;
2605		}
2606
2607		currentLookupIndex--;
2608
2609		/* decrement index by the total number of entries deleted */
2610
2611		for (indexToVerify = currentLookupIndex;
2612		indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2613
2614		bootEntry = findEntryByIndex(config, indexToVerify);
2615
2616		if (bootEntry && bootEntry->skip) {
2617		config->defaultImage--;
2618		}
2619	}	}
2620	}	}
2621
2622	/* defaultImage now points to what we'd like to use, but before any order	void setFallbackImage(struct grubConfig *config, int hasNew)
2623	changes */	{
2624	if (config->defaultImage == DEFAULT_SAVED)	struct singleEntry *entry, *entry2;
2625	/* default is set to saved, we don't want to change it */	int j;
2626	return;
2627		if (config->fallbackImage == -1)
2628	if (config->defaultImage > -1)	return;
2629	entry = findEntryByIndex(config, config->defaultImage);
2630	else	entry = findEntryByIndex(config, config->fallbackImage);
2631	entry = NULL;	if (!entry || entry->skip) {
2632		config->fallbackImage = -1;
2633		return;
2634		}
2635
	if (entry && !entry->skip) {
	/* we can preserve the default */
2636	if (hasNew)	if (hasNew)
2637	config->defaultImage++;	config->fallbackImage++;
2638
2639	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2640	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2641	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2642	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2643	}	config->fallbackImage--;
2644	} 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;
	}
2645	}	}
2646
2647	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2648	struct singleEntry * entry, * entry2;	{
2649	int j;	struct singleLine *line;
2650		char *root = NULL;
2651	if (config->fallbackImage == -1) return;	int i;
2652		int j;
2653	entry = findEntryByIndex(config, config->fallbackImage);
2654	if (!entry || entry->skip) {	printf("index=%d\n", index);
2655	config->fallbackImage = -1;
2656	return;	line =
2657	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2658		entry->lines);
2659		if (!line) {
2660		printf("non linux entry\n");
2661		return;
2662		}
2663
2664	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2665	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2666		else
2667	/* 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--;
	}
	}
2668
2669	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2670	struct singleLine * line;	printf("args=\"");
2671	char * root = NULL;	i = 2;
2672	int i;	while (i < line->numElements) {
2673		if (!strncmp(line->elements[i].item, "root=", 5)) {
2674	line = entry->lines;	root = line->elements[i].item + 5;
2675	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2676		printf("%s%s", line->elements[i].item,
2677	printf("index=%d\n", index);	line->elements[i].indent);
2678		}
2679	printf("kernel=%s\n", line->elements[1].item);
2680		i++;
2681	if (line->numElements >= 3) {	}
2682	printf("args=\"");	printf("\"\n");
2683	i = 2;	} else {
2684	while (i < line->numElements) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2685	if (!strncmp(line->elements[i].item, "root=", 5)) {	if (line) {
2686	root = line->elements[i].item + 5;	char *s;
2687	} else {
2688	printf("%s%s", line->elements[i].item,	printf("args=\"");
2689	line->elements[i].indent);	i = 1;
2690	}	while (i < line->numElements) {
2691		if (!strncmp
2692		(line->elements[i].item, "root=", 5)) {
2693		root = line->elements[i].item + 5;
2694		} else {
2695		s = line->elements[i].item;
2696
2697		printf("%s%s", s,
2698		line->elements[i].indent);
2699		}
2700
2701	i++;	i++;
2702		}
2703
2704		s = line->elements[i - 1].indent;
2705		printf("\"\n");
2706		}
2707		}
2708
2709		if (!root) {
2710		line = getLineByType(LT_ROOT, entry->lines);
2711		if (line && line->numElements >= 2)
2712		root = line->elements[1].item;
2713	}	}
2714	printf("\"\n");
2715	} else {	if (root) {
2716	line = entry->lines;	char *s = alloca(strlen(root) + 1);
2717	while (line && line->type != LT_KERNELARGS) line=line->next;
2718		strcpy(s, root);
2719		if (s[strlen(s) - 1] == '"')
2720		s[strlen(s) - 1] = '\0';
2721		/* make sure the root doesn't have a trailing " */
2722		printf("root=%s\n", s);
2723		}
2724
2725		line =
2726		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2727		entry->lines);
2728
2729		if (line && line->numElements >= 2) {
2730		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2731		printf("initrd=");
2732		else
2733		printf("initrd=%s", prefix);
2734
2735		for (i = 1; i < line->numElements; i++)
2736		printf("%s%s", line->elements[i].item,
2737		line->elements[i].indent);
2738		printf("\n");
2739		}
2740
2741		line = getLineByType(LT_TITLE, entry->lines);
2742	if (line) {	if (line) {
2743	char * s;	printf("title=%s\n", line->elements[1].item);
2744		} else {
2745		char *title;
2746		line = getLineByType(LT_MENUENTRY, entry->lines);
2747		if (line) {
2748		title = grub2ExtractTitle(line);
2749		if (title)
2750		printf("title=%s\n", title);
2751		}
2752		}
2753
2754		for (j = 0, line = entry->lines; line; line = line->next) {
2755		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2756		if (!strncmp
2757		(prefix, line->elements[1].item, strlen(prefix)))
2758		printf("mbmodule%d=", j);
2759		else
2760		printf("mbmodule%d=%s", j, prefix);
2761
2762		for (i = 1; i < line->numElements; i++)
2763		printf("%s%s", line->elements[i].item,
2764		line->elements[i].indent);
2765		printf("\n");
2766		j++;
2767		}
2768		}
2769		}
2770
2771		int isSuseSystem(void)
2772		{
2773		const char *path;
2774		const static char default_path[] = "/etc/SuSE-release";
2775
2776		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2777		path = default_path;
2778
2779		if (!access(path, R_OK))
2780		return 1;
2781		return 0;
2782		}
2783
2784		int isSuseGrubConf(const char *path)
2785		{
2786		FILE *grubConf;
2787		char *line = NULL;
2788		size_t len = 0, res = 0;
2789
2790		grubConf = fopen(path, "r");
2791		if (!grubConf) {
2792		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2793		path);
2794		return 0;
2795		}
2796
2797		while ((res = getline(&line, &len, grubConf)) != -1) {
2798		if (!strncmp(line, "setup", 5)) {
2799		fclose(grubConf);
2800		free(line);
2801		return 1;
2802		}
2803		}
2804
2805	printf("args=\"");	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2806	i = 1;	path);
2807	while (i < line->numElements) {
2808	if (!strncmp(line->elements[i].item, "root=", 5)) {	fclose(grubConf);
2809	root = line->elements[i].item + 5;	free(line);
2810		return 0;
2811		}
2812
2813		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2814		{
2815		FILE *grubConf;
2816		char *line = NULL;
2817		size_t res = 0, len = 0;
2818
2819		if (!path)
2820		return 1;
2821		if (!lbaPtr)
2822		return 1;
2823
2824		grubConf = fopen(path, "r");
2825		if (!grubConf)
2826		return 1;
2827
2828		while ((res = getline(&line, &len, grubConf)) != -1) {
2829		if (line[res - 1] == '\n')
2830		line[res - 1] = '\0';
2831		else if (len > res)
2832		line[res] = '\0';
2833		else {
2834		line = realloc(line, res + 1);
2835		line[res] = '\0';
2836		}
2837
2838		if (!strncmp(line, "setup", 5)) {
2839		if (strstr(line, "--force-lba")) {
2840		*lbaPtr = 1;
2841		} else {
2842		*lbaPtr = 0;
2843		}
2844		dbgPrintf("lba: %i\n", *lbaPtr);
2845		break;
2846		}
2847		}
2848
2849		free(line);
2850		fclose(grubConf);
2851		return 0;
2852		}
2853
2854		int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2855		{
2856		FILE *grubConf;
2857		char *line = NULL;
2858		size_t res = 0, len = 0;
2859		char *lastParamPtr = NULL;
2860		char *secLastParamPtr = NULL;
2861		char installDeviceNumber = '\0';
2862		char *bounds = NULL;
2863
2864		if (!path)
2865		return 1;
2866		if (!devicePtr)
2867		return 1;
2868
2869		grubConf = fopen(path, "r");
2870		if (!grubConf)
2871		return 1;
2872
2873		while ((res = getline(&line, &len, grubConf)) != -1) {
2874		if (strncmp(line, "setup", 5))
2875		continue;
2876
2877		if (line[res - 1] == '\n')
2878		line[res - 1] = '\0';
2879		else if (len > res)
2880		line[res] = '\0';
2881		else {
2882		line = realloc(line, res + 1);
2883		line[res] = '\0';
2884		}
2885
2886		lastParamPtr = bounds = line + res;
2887
2888		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2889		while (!isspace(*lastParamPtr))
2890		lastParamPtr--;
2891		lastParamPtr++;
2892
2893		secLastParamPtr = lastParamPtr - 2;
2894		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2895
2896		if (lastParamPtr + 3 > bounds) {
2897		dbgPrintf("lastParamPtr going over boundary");
2898		fclose(grubConf);
2899		free(line);
2900		return 1;
2901		}
2902		if (!strncmp(lastParamPtr, "(hd", 3))
2903		lastParamPtr += 3;
2904		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2905
2906		/*
2907		* Second last parameter will decide wether last parameter is
2908		* an IMAGE_DEVICE or INSTALL_DEVICE
2909		*/
2910		while (!isspace(*secLastParamPtr))
2911		secLastParamPtr--;
2912		secLastParamPtr++;
2913
2914		if (secLastParamPtr + 3 > bounds) {
2915		dbgPrintf("secLastParamPtr going over boundary");
2916		fclose(grubConf);
2917		free(line);
2918		return 1;
2919		}
2920		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2921		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2922		secLastParamPtr += 3;
2923		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2924		installDeviceNumber = *secLastParamPtr;
2925	} else {	} else {
2926	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
2927		}
2928
2929	printf("%s%s", s, line->elements[i].indent);	*devicePtr = malloc(6);
2930		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2931		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2932		fclose(grubConf);
2933		free(line);
2934		return 0;
2935		}
2936
2937		free(line);
2938		fclose(grubConf);
2939		return 1;
2940		}
2941
2942		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2943		{
2944		FILE *deviceMap;
2945		char *line = NULL;
2946		size_t res = 0, len = 0;
2947		char *devicePtr;
2948		char *bounds = NULL;
2949		const char *path;
2950		const static char default_path[] = "/boot/grub/device.map";
2951
2952		if (!device)
2953		return 1;
2954		if (!bootPtr)
2955		return 1;
2956
2957		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2958		path = default_path;
2959
2960		dbgPrintf("opening grub device.map file from: %s\n", path);
2961		deviceMap = fopen(path, "r");
2962		if (!deviceMap)
2963		return 1;
2964
2965		while ((res = getline(&line, &len, deviceMap)) != -1) {
2966		if (!strncmp(line, "#", 1))
2967		continue;
2968
2969		if (line[res - 1] == '\n')
2970		line[res - 1] = '\0';
2971		else if (len > res)
2972		line[res] = '\0';
2973		else {
2974		line = realloc(line, res + 1);
2975		line[res] = '\0';
2976	}	}
2977
2978	i++;	devicePtr = line;
2979	}	bounds = line + res;
2980
2981		while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2982		devicePtr++;
2983		dbgPrintf("device: %s\n", devicePtr);
2984
2985		if (!strncmp(devicePtr, device, strlen(device))) {
2986		devicePtr += strlen(device);
2987		while (isspace(*devicePtr)
2988		&& ((devicePtr + 1) <= bounds))
2989		devicePtr++;
2990
2991	s = line->elements[i - 1].indent;	*bootPtr = strdup(devicePtr);
2992	printf("\"\n");	break;
2993		}
2994	}	}
	}
2995
2996	if (!root) {	free(line);
2997	line = entry->lines;	fclose(deviceMap);
2998	while (line && line->type != LT_ROOT) line = line->next;	return 0;
2999		}
3000
3001	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3002	root=line->elements[1].item;	{
3003	}	char *grubDevice;
3004
3005	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3006	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
3007		else
3008	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);
	}
3009
3010	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3011	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
3012		else
3013		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3014
3015	if (line && line->numElements >= 2) {	free(grubDevice);
3016	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");
	}
3017	}	}
3018
3019	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3020	FILE * in;	{
3021	char buf[1024];	/*
3022	char * chptr;	* This SuSE grub configuration file at this location is not your
3023	char * start;	* average grub configuration file, but instead the grub commands
3024	char * param;	* used to setup grub on that system.
3025		*/
3026	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
3027	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);
	}
3028
3029	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3030		path = default_path;
3031
3032	return 0;	if (!isSuseGrubConf(path))
3033		return 1;
3034
3035		if (lbaPtr) {
3036		*lbaPtr = 0;
3037		if (suseGrubConfGetLba(path, lbaPtr))
3038		return 1;
3039		}
3040
3041		if (bootPtr) {
3042		*bootPtr = NULL;
3043		suseGrubConfGetBoot(path, bootPtr);
3044		}
3045
3046		return 0;
3047	}	}
3048
3049	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3050	char * boot;	{
3051	int lba;	FILE *in;
3052		char buf[1024];
3053	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
3054	if (lba) printf("lba\n");	char *start;
3055	if (boot) printf("boot=%s\n", boot);	char *param;
3056	}
3057		in = fopen("/etc/sysconfig/grub", "r");
3058		if (!in)
3059		return 1;
3060
3061		if (lbaPtr)
3062		*lbaPtr = 0;
3063		if (bootPtr)
3064		*bootPtr = NULL;
3065
3066		while (fgets(buf, sizeof(buf), in)) {
3067		start = buf;
3068		while (isspace(*start))
3069		start++;
3070		if (*start == '#')
3071		continue;
3072
3073		chptr = strchr(start, '=');
3074		if (!chptr)
3075		continue;
3076		chptr--;
3077		while (*chptr && isspace(*chptr))
3078		chptr--;
3079		chptr++;
3080		*chptr = '\0';
3081
3082		param = chptr + 1;
3083		while (*param && isspace(*param))
3084		param++;
3085		if (*param == '=') {
3086		param++;
3087		while (*param && isspace(*param))
3088		param++;
3089		}
3090
3091		chptr = param;
3092		while (*chptr && !isspace(*chptr))
3093		chptr++;
3094		*chptr = '\0';
3095
3096		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3097		*lbaPtr = 1;
3098		else if (!strcmp(start, "boot") && bootPtr)
3099		*bootPtr = strdup(param);
3100		}
3101
3102		fclose(in);
3103
3104		return 0;
3105	}	}
3106
3107	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3108	const char * prefix) {	{
3109	int i = 0;	char *boot = NULL;
3110	struct singleEntry * entry;	int lba;
3111	struct singleLine * line;
3112		if (isSuseSystem()) {
3113	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3114	if (!entry) {	free(boot);
3115	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3116	return 1;	}
3117	}	} else {
3118		if (parseSysconfigGrub(&lba, &boot)) {
3119		free(boot);
3120		return;
3121		}
3122		}
3123
3124	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3125	be a better way */	printf("lba\n");
3126	if (config->cfi == &grubConfigType) {	if (boot) {
3127	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3128	} 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);
3129	}	}
3130		}
3131
3132	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3133	while (line && line->type != LT_LBA) line = line->next;	{
3134	if (line) printf("lba\n");	int i = 0;
3135	}	struct singleEntry *entry;
3136		struct singleLine *line;
3137
3138		entry = findEntryByPath(config, kernel, prefix, &i);
3139		if (!entry) {
3140		fprintf(stderr, _("grubby: kernel not found\n"));
3141		return 1;
3142		}
3143
3144	displayEntry(entry, prefix, i);	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3145		be a better way */
3146		if (config->cfi == &grubConfigType) {
3147		dumpSysconfigGrub();
3148		} else {
3149		line = getLineByType(LT_BOOT, config->theLines);
3150		if (line && line->numElements >= 1) {
3151		printf("boot=%s\n", line->elements[1].item);
3152		}
3153
3154		line = getLineByType(LT_LBA, config->theLines);
3155		if (line)
3156		printf("lba\n");
3157		}
3158
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3159	displayEntry(entry, prefix, i);	displayEntry(entry, prefix, i);
3160
3161	i++;	i++;
3162	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3163		displayEntry(entry, prefix, i);
3164		i++;
3165		}
3166
3167	return 0;	return 0;
3168		}
3169
3170		struct singleLine *addLineTmpl(struct singleEntry *entry,
3171		struct singleLine *tmplLine,
3172		struct singleLine *prevLine,
3173		const char *val, struct configFileInfo *cfi)
3174		{
3175		struct singleLine *newLine = lineDup(tmplLine);
3176
3177		if (isEfi && cfi == &grub2ConfigType) {
3178		enum lineType_e old = newLine->type;
3179		newLine->type = preferredLineType(newLine->type, cfi);
3180		if (old != newLine->type)
3181		newLine->elements[0].item =
3182		getKeyByType(newLine->type, cfi);
3183		}
3184
3185		if (val) {
3186		/* override the inherited value with our own.
3187		* This is a little weak because it only applies to elements[1]
3188		*/
3189		if (newLine->numElements > 1)
3190		removeElement(newLine, 1);
3191		insertElement(newLine, val, 1, cfi);
3192
3193		/* but try to keep the rootspec from the template... sigh */
3194		if (tmplLine->
3195		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3196		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3197		LT_INITRD_16)) {
3198		char *rootspec =
3199		getRootSpecifier(tmplLine->elements[1].item);
3200		if (rootspec != NULL) {
3201		free(newLine->elements[1].item);
3202		newLine->elements[1].item =
3203		sdupprintf("%s%s", rootspec, val);
3204		}
3205		}
3206		}
3207
3208		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3209		newLine->elements[0].item : "");
3210
3211		if (!entry->lines) {
3212		/* first one on the list */
3213		entry->lines = newLine;
3214		} else if (prevLine) {
3215		/* add after prevLine */
3216		newLine->next = prevLine->next;
3217		prevLine->next = newLine;
3218		}
3219
3220		return newLine;
3221	}	}
3222
3223	/* val may be NULL */	/* val may be NULL */
3224	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3225	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3226	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3227	char * val) {	const char *val)
3228	struct singleLine * line, * prev;	{
3229	int i;	struct singleLine *line, *prev;
3230		struct keywordTypes *kw;
3231	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3232	if (cfi->keywords[i].type == type) break;
3233	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3234	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3235		*/
3236	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3237	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3238	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3239	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3240	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3241	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3242	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3243	prev = NULL;	tmpl.elements[0].indent = "";
3244	while (line) {	val = NULL;
3245	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3246	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3247		if (!val) {
3248		fprintf(stderr,
3249		"Line type LT_MENUENTRY requires a value\n");
3250		abort();
3251		}
3252		kw = getKeywordByType(type, cfi);
3253		if (!kw) {
3254		fprintf(stderr,
3255		"Looking up keyword for unknown type %d\n",
3256		type);
3257		abort();
3258		}
3259		tmpl.indent = "";
3260		tmpl.type = type;
3261		tmpl.numElements = 3;
3262		tmpl.elements =
3263		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3264		tmpl.elements[0].item = kw->key;
3265		tmpl.elements[0].indent = alloca(2);
3266		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3267		tmpl.elements[1].item = (char *)val;
3268		tmpl.elements[1].indent = alloca(2);
3269		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3270		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3271		strcpy(tmpl.elements[2].item, lineend);
3272		tmpl.elements[2].indent = "";
3273		} else {
3274		kw = getKeywordByType(type, cfi);
3275		if (!kw) {
3276		fprintf(stderr,
3277		"Looking up keyword for unknown type %d\n",
3278		type);
3279		abort();
3280		}
3281		tmpl.type = type;
3282		tmpl.numElements = val ? 2 : 1;
3283		tmpl.elements =
3284		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3285		tmpl.elements[0].item = kw->key;
3286		tmpl.elements[0].indent = alloca(2);
3287		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3288		if (val) {
3289		tmpl.elements[1].item = (char *)val;
3290		tmpl.elements[1].indent = "";
3291		}
3292	}	}
	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;
3293
3294	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3295	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3296	else	* which may not be ideal? If there are no lines or we are looking at
3297	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3298	} else {	* indented differently from the rest) */
3299	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3300	line->indent = strdup(defaultIndent);	if (line->numElements)
3301	line->next = NULL;	prev = line;
3302	}	/* fall back on the last line if prev isn't otherwise set */
3303		if (!line->next && !prev)
3304		prev = line;
3305		}
3306
3307		struct singleLine *menuEntry;
3308		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3309		if (tmpl.type == LT_ENTRY_END) {
3310		if (menuEntry)
3311		tmpl.indent = menuEntry->indent;
3312		else
3313		tmpl.indent = defaultIndent ? : "";
3314		} else if (tmpl.type != LT_MENUENTRY) {
3315		if (menuEntry)
3316		tmpl.indent = "\t";
3317		else if (prev == entry->lines)
3318		tmpl.indent = defaultIndent ? : "";
3319		else
3320		tmpl.indent = prev->indent;
3321		}
3322
3323	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3324	line->type = type;	}
3325	line->numElements = val ? 2 : 1;
3326	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3327	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3328	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3329	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
3330	line->elements[0].indent[1] = '\0';
3331		for (i = 0; i < line->numElements; i++) {
3332	if (val) {	free(line->elements[i].item);
3333	line->elements[1].item = val;	free(line->elements[i].indent);
3334	line->elements[1].indent = strdup("");	}
3335	}	free(line->elements);
3336	} else {	free(line->indent);
3337	/* we're doing the title of a bracketed title (zipl) */
3338	line->type = type;	if (line == entry->lines) {
3339	line->numElements = 1;	entry->lines = line->next;
3340	line->elements = malloc(sizeof(*line->elements) * line->numElements);	} else {
3341		prev = entry->lines;
3342	line->elements[0].item = malloc(strlen(val) + 3);	while (prev->next != line)
3343	sprintf(line->elements[0].item, "[%s]", val);	prev = prev->next;
3344	line->elements[0].indent = strdup("");	prev->next = line->next;
3345	}	}
3346
3347	return line;	free(line);
3348	}	}
3349
3350	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3351	struct singleLine * prev;	{
3352	int i;	struct singleLine newLine = {
3353		.indent = tmplLine->indent,
3354		.type = tmplLine->type,
3355		.next = tmplLine->next,
3356		};
3357		int firstQuotedItem = -1;
3358		int quoteLen = 0;
3359		int j;
3360		int element = 0;
3361		char *c;
3362
3363		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3364		strcpy(c, tmplLine->elements[0].item);
3365		insertElement(&newLine, c, element++, cfi);
3366		free(c);
3367		c = NULL;
3368
3369		for (j = 1; j < tmplLine->numElements; j++) {
3370		if (firstQuotedItem == -1) {
3371		quoteLen += strlen(tmplLine->elements[j].item);
3372
3373		if (isquote(tmplLine->elements[j].item[0])) {
3374		firstQuotedItem = j;
3375		quoteLen +=
3376		strlen(tmplLine->elements[j].indent);
3377		} else {
3378		c = malloc(quoteLen + 1);
3379		strcpy(c, tmplLine->elements[j].item);
3380		insertElement(&newLine, c, element++, cfi);
3381		free(c);
3382		quoteLen = 0;
3383		}
3384		} else {
3385		int itemlen = strlen(tmplLine->elements[j].item);
3386		quoteLen += itemlen;
3387		quoteLen += strlen(tmplLine->elements[j].indent);
3388
3389		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3390		c = malloc(quoteLen + 1);
3391		c[0] = '\0';
3392		for (int i = firstQuotedItem; i < j + 1; i++) {
3393		strcat(c, tmplLine->elements[i].item);
3394		strcat(c, tmplLine->elements[i].indent);
3395		}
3396		insertElement(&newLine, c, element++, cfi);
3397		free(c);
3398
3399		firstQuotedItem = -1;
3400		quoteLen = 0;
3401		}
3402		}
3403		}
3404		while (tmplLine->numElements)
3405		removeElement(tmplLine, 0);
3406		if (tmplLine->elements)
3407		free(tmplLine->elements);
3408
3409	for (i = 0; i < line->numElements; i++) {	tmplLine->numElements = newLine.numElements;
3410	free(line->elements[i].item);	tmplLine->elements = newLine.elements;
3411	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
3412
3413	if (line == entry->lines) {	static void insertElement(struct singleLine *line,
3414	entry->lines = line->next;	const char *item, int insertHere,
3415	} else {	struct configFileInfo *cfi)
3416	prev = entry->lines;	{
3417	while (prev->next != line) prev = prev->next;	struct keywordTypes *kw;
3418	prev->next = line->next;	char indent[2] = "";
3419	}
3420		/* sanity check */
3421		if (insertHere > line->numElements) {
3422		dbgPrintf
3423		("insertElement() adjusting insertHere from %d to %d\n",
3424		insertHere, line->numElements);
3425		insertHere = line->numElements;
3426		}
3427
3428		line->elements = realloc(line->elements, (line->numElements + 1) *
3429		sizeof(*line->elements));
3430		memmove(&line->elements[insertHere + 1],
3431		&line->elements[insertHere],
3432		(line->numElements - insertHere) * sizeof(*line->elements));
3433		line->elements[insertHere].item = strdup(item);
3434
3435		kw = getKeywordByType(line->type, cfi);
3436
3437		if (line->numElements == 0) {
3438		indent[0] = '\0';
3439		} else if (insertHere == 0) {
3440		indent[0] = kw->nextChar;
3441		} else if (kw->separatorChar != '\0') {
3442		indent[0] = kw->separatorChar;
3443		} else {
3444		indent[0] = ' ';
3445		}
3446
3447		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3448		/* move the end-of-line forward */
3449		line->elements[insertHere].indent =
3450		line->elements[insertHere - 1].indent;
3451		line->elements[insertHere - 1].indent = strdup(indent);
3452		} else {
3453		line->elements[insertHere].indent = strdup(indent);
3454		}
3455
3456		line->numElements++;
3457
3458	free(line);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3459		line->elements[0].item,
3460		line->elements[insertHere].item,
3461		line->elements[insertHere].indent, insertHere);
3462	}	}
3463
3464	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3465	char * first, * second;	{
3466	char * chptr;	int i;
3467
3468	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3469	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3470		return;
3471	chptr = strchr(first, '=');
3472	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3473		removeHere, line->elements[removeHere].item);
3474	chptr = strchr(second, '=');
3475	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3476
3477	return strcmp(first, second);	if (removeHere > 1) {
3478	}	/* previous argument gets this argument's post-indentation */
3479		free(line->elements[removeHere - 1].indent);
3480	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3481	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3482	const char * removeArgs, int multibootArgs) {	} else {
3483	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;
3484	}	}
	}
3485
3486	if (!removeArgs) {	/* now collapse the array, but don't bother to realloc smaller */
3487	oldArgs = malloc(sizeof(*oldArgs));	for (i = removeHere; i < line->numElements - 1; i++)
3488	*oldArgs = NULL;	line->elements[i] = line->elements[i + 1];
3489	} else {
3490	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	line->numElements--;
3491	fprintf(stderr,	}
3492	_("grubby: error separating arguments '%s'\n"), removeArgs);
3493	free(newArgs);	int argMatch(const char *one, const char *two)
3494	return 1;	{
3495		char *first, *second;
3496		char *chptr;
3497
3498		first = strcpy(alloca(strlen(one) + 1), one);
3499		second = strcpy(alloca(strlen(two) + 1), two);
3500
3501		chptr = strchr(first, '=');
3502		if (chptr)
3503		*chptr = '\0';
3504
3505		chptr = strchr(second, '=');
3506		if (chptr)
3507		*chptr = '\0';
3508
3509		return strcmp(first, second);
3510		}
3511
3512		int updateActualImage(struct grubConfig *cfg, const char *image,
3513		const char *prefix, const char *addArgs,
3514		const char *removeArgs, int multibootArgs)
3515		{
3516		struct singleEntry *entry;
3517		struct singleLine *line, *rootLine;
3518		int index = 0;
3519		int i, k;
3520		const char **newArgs, **oldArgs;
3521		const char **arg;
3522		int useKernelArgs, useRoot;
3523		int firstElement;
3524		int *usedElements;
3525		int doreplace;
3526
3527		if (!image)
3528		return 0;
3529
3530		if (!addArgs) {
3531		newArgs = malloc(sizeof(*newArgs));
3532		*newArgs = NULL;
3533		} else {
3534		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3535		fprintf(stderr,
3536		_("grubby: error separating arguments '%s'\n"),
3537		addArgs);
3538		return 1;
3539		}
3540	}	}
	}
3541
3542	for (i = 0; cfg->cfi->keywords[i].key; i++)	if (!removeArgs) {
3543	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	oldArgs = malloc(sizeof(*oldArgs));
3544		*oldArgs = NULL;
3545		} else {
3546		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3547		fprintf(stderr,
3548		_("grubby: error separating arguments '%s'\n"),
3549		removeArgs);
3550		free(newArgs);
3551		return 1;
3552		}
3553		}
3554
3555	if (cfg->cfi->keywords[i].key)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3556	useKernelArgs = 1;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3557
3558	for (i = 0; cfg->cfi->keywords[i].key; i++)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3559	if (cfg->cfi->keywords[i].type == LT_ROOT) break;	&& !multibootArgs);
3560
3561	if (cfg->cfi->keywords[i].key)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3562	useRoot = 1;
3563		if (multibootArgs && !entry->multiboot)
3564	k = 0;	continue;
3565	for (arg = newArgs; *arg; arg++)
3566	k++;	/* Determine where to put the args.  If this config supports
3567	usedArgs = calloc(k, sizeof(int));	* LT_KERNELARGS, use that.  Otherwise use
3568		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3569	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	*/
3570	index++;	if (useKernelArgs) {
3571		line = getLineByType(LT_KERNELARGS, entry->lines);
3572	line = entry->lines;	if (!line) {
3573	while (line && line->type != LT_KERNEL) line = line->next;	/* no LT_KERNELARGS, need to add it */
3574	if (!line) continue;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3575	firstElement = 2;	cfg->secondaryIndent, NULL);
3576		}
3577	if (entry->multiboot && !multibootArgs) {	firstElement = 1;
3578	/* first mb module line is the real kernel */
3579	while (line && line->type != LT_MBMODULE) line = line->next;	} else if (multibootArgs) {
3580	firstElement = 2;	line = getLineByType(LT_HYPER, entry->lines);
3581	} else if (useKernelArgs) {	if (!line) {
3582	while (line && line->type != LT_KERNELARGS) line = line->next;	/* a multiboot entry without LT_HYPER? */
3583	firstElement = 1;	continue;
3584	}	}
3585		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, '=');
3586
	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(" ");
3587	} else {	} else {
3588	/* First thing on this line; treat a bit differently. Note	line =
3589	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3590	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3591	line->elements[line->numElements].indent = strdup("");	entry->lines);
3592		if (!line) {
3593		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3594		continue;
3595		}
3596		firstElement = 2;
3597	}	}
3598
3599	line->numElements++;	/* handle the elilo case which does:
3600		*   append="hypervisor args -- kernel args"
3601		*/
3602		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3603		/* this is a multiboot entry, make sure there's
3604		* -- on the args line
3605		*/
3606		for (i = firstElement; i < line->numElements; i++) {
3607		if (!strcmp(line->elements[i].item, "--"))
3608		break;
3609		}
3610		if (i == line->numElements) {
3611		/* assume all existing args are kernel args,
3612		* prepend -- to make it official
3613		*/
3614		insertElement(line, "--", firstElement,
3615		cfg->cfi);
3616		i = firstElement;
3617		}
3618		if (!multibootArgs) {
3619		/* kernel args start after the -- */
3620		firstElement = i + 1;
3621		}
3622		} else if (cfg->cfi->mbConcatArgs) {
3623		/* this is a non-multiboot entry, remove hyper args */
3624		for (i = firstElement; i < line->numElements; i++) {
3625		if (!strcmp(line->elements[i].item, "--"))
3626		break;
3627		}
3628		if (i < line->numElements) {
3629		/* remove args up to -- */
3630		while (strcmp
3631		(line->elements[firstElement].item,
3632		"--"))
3633		removeElement(line, firstElement);
3634		/* remove -- */
3635		removeElement(line, firstElement);
3636		}
3637		}
3638
3639		usedElements = calloc(line->numElements, sizeof(*usedElements));
3640
3641	/* if we updated a root= here even though there is a	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3642	LT_ROOT available we need to remove the LT_ROOT entry
3643	(this will happen if we switch from a device to a label) */	doreplace = 1;
3644	if (useRoot && !strncmp(*arg, "root=", 5)) {	for (i = firstElement; i < line->numElements; i++) {
3645	rootLine = entry->lines;	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3646	while (rootLine && rootLine->type != LT_ROOT)	!strcmp(line->elements[i].item, "--")) {
3647	rootLine = rootLine->next;	/* reached the end of hyper args, insert here */
3648	if (rootLine) {	doreplace = 0;
3649	removeLine(entry, rootLine);	break;
3650	}	}
3651	}	if (usedElements[i])
3652	}	continue;
3653	k++;	if (!argMatch(line->elements[i].item, *arg)) {
3654	}	usedElements[i] = 1;
3655		break;
3656	free(usedElements);	}
3657		}
3658	/* no arguments to remove (i.e. no append line) */
3659	if (!line) continue;	if (i < line->numElements && doreplace) {
3660		/* direct replacement */
3661	/* this won't remove an LT_ROOT item properly (but then again,	free(line->elements[i].item);
3662	who cares? */	line->elements[i].item = strdup(*arg);
3663	for (arg = oldArgs; *arg; arg++) {
3664	for (i = firstElement; i < line->numElements; i++)	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3665	if (!argMatch(line->elements[i].item, *arg))	/* root= replacement */
3666	break;	rootLine = getLineByType(LT_ROOT, entry->lines);
3667		if (rootLine) {
3668	if (i < line->numElements) {	free(rootLine->elements[1].item);
3669	/* if this isn't the first argument the previous argument	rootLine->elements[1].item =
3670	gets this arguments post-indention */	strdup(*arg + 5);
3671	if (i > firstElement) {	} else {
3672	free(line->elements[i - 1].indent);	rootLine =
3673	line->elements[i - 1].indent = line->elements[i].indent;	addLine(entry, cfg->cfi, LT_ROOT,
3674		cfg->secondaryIndent,
3675		*arg + 5);
3676		}
3677		}
3678
3679		else {
3680		/* insert/append */
3681		insertElement(line, *arg, i, cfg->cfi);
3682		usedElements =
3683		realloc(usedElements,
3684		line->numElements *
3685		sizeof(*usedElements));
3686		memmove(&usedElements[i + 1], &usedElements[i],
3687		line->numElements - i - 1);
3688		usedElements[i] = 1;
3689
3690		/* if we updated a root= here even though
3691		* there is a LT_ROOT available we need to
3692		* remove the LT_ROOT entry (this will happen
3693		* if we switch from a device to a label) */
3694		if (useRoot && !strncmp(*arg, "root=", 5)) {
3695		rootLine =
3696		getLineByType(LT_ROOT,
3697		entry->lines);
3698		if (rootLine)
3699		removeLine(entry, rootLine);
3700		}
3701		}
3702	}	}
	free(line->elements[i].item);
3703
3704	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3705
3706	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3707	}	for (i = firstElement; i < line->numElements; i++) {
3708	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3709		!strcmp(line->elements[i].item, "--"))
3710		/* reached the end of hyper args, stop here */
3711		break;
3712		if (!argMatch(line->elements[i].item, *arg)) {
3713		removeElement(line, i);
3714		break;
3715		}
3716		}
3717		/* handle removing LT_ROOT line too */
3718		if (useRoot && !strncmp(*arg, "root=", 5)) {
3719		rootLine = getLineByType(LT_ROOT, entry->lines);
3720		if (rootLine)
3721		removeLine(entry, rootLine);
3722		}
3723		}
3724
3725	if (line->numElements == 1) {	if (line->numElements == 1) {
3726	/* 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
3727	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3728	removeLine(entry, line);	removeLine(entry, line);
3729		}
3730	}	}
	}
3731
3732	free(usedArgs);	free(newArgs);
3733	free(newArgs);	free(oldArgs);
	free(oldArgs);
3734
3735	return 0;	return 0;
3736	}	}
3737
3738	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3739	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3740	const char * removeArgs,	const char *removeArgs,
3741	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3742	int rc = 0;	{
3743		int rc = 0;
3744	if (!image) return rc;
3745		if (!image)
3746	/* update the main args first... */	return rc;
3747	if (addArgs || removeArgs)
3748	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3749	if (rc) return rc;	if (addArgs || removeArgs)
3750		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3751	/* and now any multiboot args */	0);
3752	if (addMBArgs || removeMBArgs)	if (rc)
3753	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3754	return rc;
3755	}	/* and now any multiboot args */
3756		if (addMBArgs || removeMBArgs)
3757	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3758	int fd;	removeMBArgs, 1);
3759	unsigned char bootSect[512];	return rc;
3760	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3761
3762	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3763	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3764	device, strerror(errno));	const char *title)
3765	return 1;	{
3766	}	struct singleEntry *entry;
3767	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3768		int index = 0;
3769
3770		if (!image)
3771		return 0;
3772
3773		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3774		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3775		if (!kernelLine)
3776		continue;
3777
3778		/* if title is supplied, the entry's title must match it. */
3779		if (title) {
3780		char *linetitle;
3781
3782		line =
3783		getLineByType(LT_TITLE | LT_MENUENTRY,
3784		entry->lines);
3785		if (!line)
3786		continue;
3787
3788		linetitle = extractTitle(cfg, line);
3789		if (!linetitle)
3790		continue;
3791		if (strcmp(title, linetitle)) {
3792		free(linetitle);
3793		continue;
3794		}
3795		free(linetitle);
3796		}
3797
3798	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3799	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3800	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3801		initrd += prefixLen;
3802		}
3803		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3804		if (endLine)
3805		removeLine(entry, endLine);
3806		line =
3807		addLine(entry, cfg->cfi,
3808		preferredLineType(LT_MBMODULE, cfg->cfi),
3809		kernelLine->indent, initrd);
3810		if (!line)
3811		return 1;
3812		if (endLine) {
3813		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3814		if (!line)
3815		return 1;
3816		}
3817
3818	if (boot[1] == 0xeb) {	break;
3819	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;
	}
3820
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3821	return 0;	return 0;
3822		}
3823
3824		int updateInitrd(struct grubConfig *cfg, const char *image,
3825		const char *prefix, const char *initrd, const char *title)
3826		{
3827		struct singleEntry *entry;
3828		struct singleLine *line, *kernelLine, *endLine = NULL;
3829		int index = 0;
3830
3831		if (!image)
3832		return 0;
3833
3834		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3835		kernelLine =
3836		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3837		entry->lines);
3838		if (!kernelLine)
3839		continue;
3840
3841		/* if title is supplied, the entry's title must match it. */
3842		if (title) {
3843		char *linetitle;
3844
3845		line =
3846		getLineByType(LT_TITLE | LT_MENUENTRY,
3847		entry->lines);
3848		if (!line)
3849		continue;
3850
3851		linetitle = extractTitle(cfg, line);
3852		if (!linetitle)
3853		continue;
3854		if (strcmp(title, linetitle)) {
3855		free(linetitle);
3856		continue;
3857		}
3858		free(linetitle);
3859		}
3860
3861		line =
3862		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3863		entry->lines);
3864		if (line)
3865		removeLine(entry, line);
3866		if (prefix) {
3867		int prefixLen = strlen(prefix);
3868		if (!strncmp(initrd, prefix, prefixLen))
3869		initrd += prefixLen;
3870		}
3871		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3872		if (endLine)
3873		removeLine(entry, endLine);
3874		enum lineType_e lt;
3875		switch (kernelLine->type) {
3876		case LT_KERNEL:
3877		lt = LT_INITRD;
3878		break;
3879		case LT_KERNEL_EFI:
3880		lt = LT_INITRD_EFI;
3881		break;
3882		case LT_KERNEL_16:
3883		lt = LT_INITRD_16;
3884		break;
3885		default:
3886		lt = preferredLineType(LT_INITRD, cfg->cfi);
3887		}
3888		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3889		if (!line)
3890		return 1;
3891		if (endLine) {
3892		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3893		if (!line)
3894		return 1;
3895		}
3896
3897		break;
3898		}
3899
3900	return 2;	return 0;
3901	}	}
3902
3903	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3904	int fd;	{
3905	char buf[65536];	int fd;
3906	char * end;	unsigned char bootSect[512];
3907	char * chptr;	int offset;
3908	char * chptr2;
3909	int rc;	fd = open(device, O_RDONLY);
3910		if (fd < 0) {
3911		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3912		device, strerror(errno));
3913		return 1;
3914		}
3915
3916	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (read(fd, bootSect, 512) != 512) {
3917	*raw* devices listed in there */	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3918		device, strerror(errno));
3919		return 1;
3920		}
3921		close(fd);
3922
3923		/* first three bytes should match, a jmp short should be in there */
3924		if (memcmp(boot, bootSect, 3))
3925		return 0;
3926
3927		if (boot[1] == JMP_SHORT_OPCODE) {
3928		offset = boot[2] + 2;
3929		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3930		offset = (boot[3] << 8) + boot[2] + 2;
3931		} else if (boot[0] == JMP_SHORT_OPCODE) {
3932		offset = boot[1] + 2;
3933		/*
3934		* it looks like grub, when copying stage1 into the mbr,
3935		* patches stage1 right after the JMP location, replacing
3936		* other instructions such as JMPs for NOOPs. So, relax the
3937		* check a little bit by skipping those different bytes.
3938		*/
3939		if ((bootSect[offset + 1] == NOOP_OPCODE)
3940		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3941		offset = offset + 3;
3942		}
3943		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3944		offset = (boot[2] << 8) + boot[1] + 2;
3945		} else {
3946		return 0;
3947		}
3948
3949	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3950	mdDev += 5;	return 0;
3951
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
3952	return 2;	return 2;
3953	}	}
3954
3955	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3956	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3957	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
3958	strerror(errno));	char buf[65536];
3959		char *end;
3960		char *chptr;
3961		char *chptr2;
3962		int rc;
3963
3964		/* it's on raid; we need to parse /proc/mdstat and check all of the
3965		*raw* devices listed in there */
3966
3967		if (!strncmp(mdDev, "/dev/", 5))
3968		mdDev += 5;
3969
3970		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3971		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3972		strerror(errno));
3973		return 2;
3974		}
3975
3976		rc = read(fd, buf, sizeof(buf) - 1);
3977		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3978		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3979		strerror(errno));
3980		close(fd);
3981		return 2;
3982		}
3983	close(fd);	close(fd);
3984	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
3985
3986	chptr = buf;	chptr = buf;
3987	while (*chptr) {	while (*chptr) {
3988	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
3989	if (!end) break;	if (!end)
3990	*end = '\0';	break;
3991		*end = '\0';
3992
3993		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3994		chptr[strlen(mdDev)] == ' ') {
3995
3996		/* found the device */
3997		while (*chptr && *chptr != ':')
3998		chptr++;
3999		chptr++;
4000		while (*chptr && isspace(*chptr))
4001		chptr++;
4002
4003		/* skip the "active" bit */
4004		while (*chptr && !isspace(*chptr))
4005		chptr++;
4006		while (*chptr && isspace(*chptr))
4007		chptr++;
4008
4009		/* skip the raid level */
4010		while (*chptr && !isspace(*chptr))
4011		chptr++;
4012		while (*chptr && isspace(*chptr))
4013		chptr++;
4014
4015		/* everything else is partition stuff */
4016		while (*chptr) {
4017		chptr2 = chptr;
4018		while (*chptr2 && *chptr2 != '[')
4019		chptr2++;
4020		if (!*chptr2)
4021		break;
4022
4023		/* yank off the numbers at the end */
4024		chptr2--;
4025		while (isdigit(*chptr2) && chptr2 > chptr)
4026		chptr2--;
4027		chptr2++;
4028		*chptr2 = '\0';
4029
4030		/* Better, now we need the /dev/ back. We're
4031		* done with everything before this point, so
4032		* we can just put the /dev/ part there.
4033		* There will always be room. */
4034		memcpy(chptr - 5, "/dev/", 5);
4035		rc = checkDeviceBootloader(chptr - 5, boot);
4036		if (rc != 2) {
4037		return rc;
4038		}
4039
4040		chptr = chptr2 + 1;
4041		/* skip the [11] bit */
4042		while (*chptr && !isspace(*chptr))
4043		chptr++;
4044		/* and move to the next one */
4045		while (*chptr && isspace(*chptr))
4046		chptr++;
4047		}
4048
4049	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
4050	chptr[strlen(mdDev)] == ' ') {	return 2;
4051		}
4052
4053	/* found the device */	chptr = end + 1;
4054	while (*chptr && *chptr != ':') chptr++;	}
4055	chptr++;
4056	while (*chptr && isspace(*chptr)) chptr++;	fprintf(stderr,
4057		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4058	/* skip the "active" bit */	mdDev);
4059	while (*chptr && !isspace(*chptr)) chptr++;	return 0;
4060	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++;
	}
4061
4062	/*  we're good to go */	int checkForLilo(struct grubConfig *config)
4063	return 2;	{
4064		int fd;
4065		unsigned char boot[512];
4066		struct singleLine *line;
4067
4068		for (line = config->theLines; line; line = line->next)
4069		if (line->type == LT_BOOT)
4070		break;
4071
4072		if (!line) {
4073		fprintf(stderr,
4074		_
4075		("grubby: no boot line found in lilo configuration\n"));
4076		return 1;
4077	}	}
4078
4079	chptr = end + 1;	if (line->numElements != 2)
4080	}	return 1;
4081
4082	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4083	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4084	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4085	return 0;	"/boot/boot.b", strerror(errno));
4086	}	return 1;
4087		}
4088
4089	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4090	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4091	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4092	struct singleLine * line;	return 1;
4093		}
4094	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;
	}
4095
4096	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4097		return checkLiloOnRaid(line->elements[1].item, boot);
4098
4099	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4100	if (fd < 0) {	}
4101	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4102	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4103	return 1;	{
4104	}	if (!access("/etc/grub.d/", R_OK))
4105		return 2;
4106
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4107	return 1;	return 1;
4108	}	}
	close(fd);
4109
4110	if (!strncmp("/dev/md", line->elements[1].item, 7))	int checkForGrub(struct grubConfig *config)
4111	return checkLiloOnRaid(line->elements[1].item, boot);	{
4112		int fd;
4113		unsigned char bootSect[512];
4114		char *boot;
4115		int onSuse = isSuseSystem();
4116
4117		if (onSuse) {
4118		if (parseSuseGrubConf(NULL, &boot))
4119		return 0;
4120		} else {
4121		if (parseSysconfigGrub(NULL, &boot))
4122		return 0;
4123		}
4124
4125		/* assume grub is not installed -- not an error condition */
4126		if (!boot)
4127		return 0;
4128
4129		fd = open("/boot/grub/stage1", O_RDONLY);
4130		if (fd < 0)
4131		/* this doesn't exist if grub hasn't been installed */
4132		return 0;
4133
4134		if (read(fd, bootSect, 512) != 512) {
4135		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4136		"/boot/grub/stage1", strerror(errno));
4137		close(fd);
4138		return 1;
4139		}
4140		close(fd);
4141
4142	return checkDeviceBootloader(line->elements[1].item, boot);	/* The more elaborate checks do not work on SuSE. The checks done
4143		* seem to be reasonble (at least for now), so just return success
4144		*/
4145		if (onSuse)
4146		return 2;
4147
4148		return checkDeviceBootloader(boot, bootSect);
4149	}	}
4150
4151	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4152	int fd;	{
4153	unsigned char bootSect[512];	int fd;
4154	char * boot;	unsigned char bootSect[512];
4155		char *boot;
4156		char executable[] = "/boot/extlinux/extlinux";
4157
4158		printf("entered: checkForExtLinux()\n");
4159
4160		if (parseSysconfigGrub(NULL, &boot))
4161		return 0;
4162
4163		/* assume grub is not installed -- not an error condition */
4164		if (!boot)
4165		return 0;
4166
4167		fd = open(executable, O_RDONLY);
4168		if (fd < 0)
4169		/* this doesn't exist if grub hasn't been installed */
4170		return 0;
4171
4172		if (read(fd, bootSect, 512) != 512) {
4173		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4174		executable, strerror(errno));
4175		return 1;
4176		}
4177		close(fd);
4178
4179	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4180	return 0;	}
4181
4182	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4183	if (!boot)	{
4184	return 0;	/*
4185		* This is a simplistic check that we consider good enough for own puporses
4186		*
4187		* If we were to properly check if yaboot is *installed* we'd need to:
4188		* 1) get the system boot device (LT_BOOT)
4189		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4190		*    the content on the boot device
4191		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4192		* 4) check again if binary and boot device contents match
4193		*/
4194		if (!access("/etc/yaboot.conf", R_OK))
4195		return 2;
4196
4197	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4198	if (fd < 0)	}
4199	/* this doesn't exist if grub hasn't been installed */
4200	return 0;	int checkForElilo(struct grubConfig *config)
4201		{
4202		if (!access("/etc/elilo.conf", R_OK))
4203		return 2;
4204
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4205	return 1;	return 1;
4206	}	}
	close(fd);
4207
4208	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4209		{
4210		char *idx, *rootspec = NULL;
4211
4212		if (*str == '(') {
4213		idx = rootspec = strdup(str);
4214		while (*idx && (*idx != ')') && (!isspace(*idx)))
4215		idx++;
4216		*(++idx) = '\0';
4217		}
4218		return rootspec;
4219	}	}
4220
4221	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4222	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4223		const char *newKernelInitrd,
4224		const char **extraInitrds, int extraInitrdCount)
4225		{
4226		char *initrdVal, *end;
4227		int i;
4228		size_t totalSize;
4229		size_t prefixLen;
4230		char separatorChar;
4231
4232		prefixLen = strlen(prefix);
4233		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4234
4235		for (i = 0; i < extraInitrdCount; i++) {
4236		totalSize += sizeof(separatorChar);
4237		totalSize += strlen(extraInitrds[i]) - prefixLen;
4238		}
4239
4240		initrdVal = end = malloc(totalSize);
4241
4242		end = stpcpy(end, newKernelInitrd + prefixLen);
4243
4244		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4245		for (i = 0; i < extraInitrdCount; i++) {
4246		const char *extraInitrd;
4247		int j;
4248
4249		extraInitrd = extraInitrds[i] + prefixLen;
4250		/* Don't add entries that are already there */
4251		if (tmplLine != NULL) {
4252		for (j = 2; j < tmplLine->numElements; j++)
4253		if (strcmp
4254		(extraInitrd,
4255		tmplLine->elements[j].item) == 0)
4256		break;
4257
4258	if (*str == '(') {	if (j != tmplLine->numElements)
4259	idx = rootspec = strdup(str);	continue;
4260	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4261	*(++idx) = '\0';
4262	}	*end++ = separatorChar;
4263	return rootspec;	end = stpcpy(end, extraInitrd);
4264		}
4265
4266		return initrdVal;
4267	}	}
4268
4269	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4270	const char * prefix,	const char *prefix,
4271	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4272	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4273	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4274	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4275	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4276	int needs;	{
4277	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4278	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4279	char * chptr;	int needs;
4280	int i;	char *indexs;
4281	enum lineType_e type;	char *chptr;
4282		int rc;
4283	if (!newKernelPath) return 0;
4284		if (!newKernelPath)
4285	/* if the newKernelTitle is too long silently munge it into something	return 0;
4286	* we can live with. truncating is first check, then we'll just mess with
4287	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4288	if (config->cfi->maxTitleLength &&	if (rc < 0)
4289		return 1;
4290
4291		/* if the newKernelTitle is too long silently munge it into something
4292		* we can live with. truncating is first check, then we'll just mess with
4293		* it until it looks better */
4294		if (config->cfi->maxTitleLength &&
4295	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4296	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4297	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4298	int i = 1;	int i = 1;
4299
4300		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4301		newKernelTitle);
4302		while (findEntryByPath(config, buf, NULL, NULL)) {
4303		sprintf(numBuf, "%d", i++);
4304		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4305		}
4306
4307	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);
4308	}	}
4309
4310	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4311	}	new->skip = 0;
4312		new->multiboot = 0;
4313		new->lines = NULL;
4314		entry = config->entries;
4315		for (unsigned int i = 0; i < newIndex; i++) {
4316		if (!entry)
4317		break;
4318		prev = entry;
4319		entry = entry->next;
4320		}
4321		new->next = entry;
4322
4323	new = malloc(sizeof(*new));	if (prev)
4324	new->skip = 0;	prev->next = new;
4325	new->multiboot = 0;	else
4326	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;
	}
4327
4328	if (template) {	/* copy/update from the template */
4329	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4330	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4331	if (tmplLine->numElements)	needs |= NEED_INITRD;
4332	indent = tmplLine->indent;	if (newMBKernel) {
4333		needs |= NEED_MB;
4334	/* skip comments */	new->multiboot = 1;
4335	chptr = tmplLine->indent;	}
4336	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4337	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4338
4339	/* we don't need an initrd here */	if (template) {
4340	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4341		masterLine && (tmplLine = lineDup(masterLine));
4342	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4343	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4344	struct singleLine *l;	tmplLine->type);
4345	needs &= ~ KERNEL_MB;
4346		/* skip comments */
4347	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4348	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4349	newMBKernel + strlen(prefix));	chptr++;
4350		if (*chptr == '#')
4351	tmplLine = lastLine;	continue;
4352	if (!new->lines) {
4353	new->lines = l;	if (iskernel(tmplLine->type)
4354	} else {	&& tmplLine->numElements >= 2) {
4355	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4356	newLine = l;	/* it's not a multiboot template and
4357	}	* this is the kernel line.  Try to
4358	continue;	* be intelligent about inserting the
4359	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4360	template->multiboot && !new->multiboot) {	*/
4361	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4362	}	/* insert the hypervisor first */
4363		newLine =
4364	if (!new->lines) {	addLine(new, config->cfi,
4365	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4366	new->lines = newLine;	tmplLine->indent,
4367	} else {	newMBKernel +
4368	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4369	newLine = newLine->next;	/* set up for adding the
4370	}	* kernel line */
4371		free(tmplLine->indent);
4372		tmplLine->indent =
4373	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4374	newLine->next = NULL;	secondaryIndent);
4375	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4376	newLine->numElements = tmplLine->numElements;	}
4377	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4378	newLine->numElements);	/* use addLineTmpl to
4379	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4380	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4381	newLine->elements[i].indent =	* call addLine.
4382	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4383	}	* making some changes to the
4384		* template such as the
4385	lastLine = tmplLine;	* indent change above and
4386	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4387	char * repl;	*/
4388	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4389	needs &= ~KERNEL_KERNEL;	getKeywordByType
4390	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4391	} else {	if (mbm_kw) {
4392	needs &= ~KERNEL_MB;	tmplLine->type =
4393	repl = newMBKernel;	LT_MBMODULE;
4394	}	free(tmplLine->
4395	if (new->multiboot && !template->multiboot) {	elements[0].item);
4396	free(newLine->elements[0].item);	tmplLine->elements[0].
4397	newLine->elements[0].item = strdup("module");	item =
4398	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4399	}	}
4400	free(newLine->elements[1].item);	newLine =
4401	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4402	if (rootspec != NULL) {	newLine,
4403	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4404	rootspec,	strlen(prefix),
4405	repl +	config->cfi);
4406	strlen(prefix));	needs &= ~NEED_KERNEL;
4407	} else {	}
4408	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4409	strlen(prefix));	newLine =
4410	}	addLine(new, config->cfi,
4411	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4412	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4413	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4414	if (!new->multiboot && template->multiboot) {	newMBKernel +
4415	free(newLine->elements[0].item);	strlen(prefix));
4416	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4417	newLine->type = LT_KERNEL;	}
4418	}	} else if (needs & NEED_KERNEL) {
4419	free(newLine->elements[1].item);	newLine =
4420	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4421	if (rootspec != NULL) {	newKernelPath +
4422	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4423	rootspec,	config->cfi);
4424	newKernelPath +	needs &= ~NEED_KERNEL;
4425	strlen(prefix));	}
4426	} else {
4427	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4428	strlen(prefix));	tmplLine->numElements >= 2) {
4429	}	if (needs & NEED_MB) {
4430	} else if (tmplLine->type == LT_INITRD &&	newLine =
4431	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4432	needs &= ~KERNEL_INITRD;	newMBKernel +
4433	free(newLine->elements[1].item);	strlen(prefix),
4434	if (new->multiboot && !template->multiboot) {	config->cfi);
4435	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4436	newLine->elements[0].item = strdup("module");	}
4437	newLine->type = LT_MBMODULE;
4438	}	} else if (tmplLine->type == LT_MBMODULE &&
4439	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4440	if (rootspec != NULL) {	if (new->multiboot) {
4441	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4442	rootspec,	newLine =
4443	newKernelInitrd +	addLineTmpl(new, tmplLine,
4444	strlen(prefix));	newLine,
4445	} else {	newKernelPath +
4446	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4447	strlen(prefix));	config->cfi);
4448	}	needs &= ~NEED_KERNEL;
4449	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4450	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4451	needs &= ~KERNEL_INITRD;	char *initrdVal;
4452	if (!new->multiboot && template->multiboot) {	initrdVal =
4453	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4454	newLine->elements[0].item = strdup("initrd");	tmplLine,
4455	newLine->type = LT_INITRD;	newKernelInitrd,
4456	}	extraInitrds,
4457	free(newLine->elements[1].item);	extraInitrdCount);
4458	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4459	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4460	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4461	rootspec,	initrdVal,
4462	newKernelInitrd +	config->cfi);
4463	strlen(prefix));	free(initrdVal);
4464	} else {	needs &= ~NEED_INITRD;
4465	newLine->elements[1].item = strdup(newKernelInitrd +	}
4466	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4467	}	/* template is multi but new is not,
4468	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4469	tmplLine->numElements >= 2) {	* module slot
4470	needs &= ~KERNEL_TITLE;	*/
4471		tmplLine->type =
4472	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4473	free(newLine->elements[i].item);	config->cfi);
4474	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4475	}	tmplLine->elements[0].item =
4476		strdup(getKeywordByType
4477	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4478	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4479	newLine->numElements = 2;	newLine =
4480	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4481	config->cfi->titleBracketed &&	newKernelPath +
4482	tmplLine->numElements == 1) {	strlen(prefix),
4483	needs &= ~KERNEL_TITLE;	config->cfi);
4484	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4485	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4486	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4487	newLine->numElements);	/* template is multi but new is not,
4488		* insert the initrd in the second
4489	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4490	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4491	newLine->elements[0].indent = strdup("");	tmplLine->type =
4492	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4493	}	config->cfi);
4494	}	free(tmplLine->elements[0].item);
4495	} else {	tmplLine->elements[0].item =
4496	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4497	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4498	break;	config->cfi)->key);
4499	}	initrdVal =
4500		getInitrdVal(config, prefix,
4501		tmplLine,
4502		newKernelInitrd,
4503		extraInitrds,
4504		extraInitrdCount);
4505		newLine =
4506		addLineTmpl(new, tmplLine, newLine,
4507		initrdVal, config->cfi);
4508		free(initrdVal);
4509		needs &= ~NEED_INITRD;
4510		}
4511
4512		} else if (isinitrd(tmplLine->type)
4513		&& tmplLine->numElements >= 2) {
4514		if (needs & NEED_INITRD && new->multiboot
4515		&& !template->multiboot
4516		&& config->cfi->mbInitRdIsModule) {
4517		/* make sure we don't insert the
4518		* module initrd before the module
4519		* kernel... if we don't do it here,
4520		* it will be inserted following the
4521		* template.
4522		*/
4523		if (!needs & NEED_KERNEL) {
4524		char *initrdVal;
4525
4526		initrdVal =
4527		getInitrdVal(config, prefix,
4528		tmplLine,
4529		newKernelInitrd,
4530		extraInitrds,
4531		extraInitrdCount);
4532		newLine =
4533		addLine(new, config->cfi,
4534		LT_MBMODULE,
4535		config->
4536		secondaryIndent,
4537		initrdVal);
4538		free(initrdVal);
4539		needs &= ~NEED_INITRD;
4540		}
4541		} else if (needs & NEED_INITRD) {
4542		char *initrdVal;
4543		initrdVal =
4544		getInitrdVal(config, prefix,
4545		tmplLine,
4546		newKernelInitrd,
4547		extraInitrds,
4548		extraInitrdCount);
4549		newLine =
4550		addLineTmpl(new, tmplLine, newLine,
4551		initrdVal, config->cfi);
4552		free(initrdVal);
4553		needs &= ~NEED_INITRD;
4554		}
4555
4556		} else if (tmplLine->type == LT_MENUENTRY &&
4557		(needs & NEED_TITLE)) {
4558		requote(tmplLine, config->cfi);
4559		char *nkt = malloc(strlen(newKernelTitle) + 3);
4560		strcpy(nkt, "'");
4561		strcat(nkt, newKernelTitle);
4562		strcat(nkt, "'");
4563		newLine =
4564		addLineTmpl(new, tmplLine, newLine, nkt,
4565		config->cfi);
4566		free(nkt);
4567		needs &= ~NEED_TITLE;
4568		} else if (tmplLine->type == LT_TITLE &&
4569		(needs & NEED_TITLE)) {
4570		if (tmplLine->numElements >= 2) {
4571		newLine =
4572		addLineTmpl(new, tmplLine, newLine,
4573		newKernelTitle,
4574		config->cfi);
4575		needs &= ~NEED_TITLE;
4576		} else if (tmplLine->numElements == 1 &&
4577		config->cfi->titleBracketed) {
4578		/* addLineTmpl doesn't handle
4579		* titleBracketed */
4580		newLine =
4581		addLine(new, config->cfi, LT_TITLE,
4582		tmplLine->indent,
4583		newKernelTitle);
4584		needs &= ~NEED_TITLE;
4585		}
4586		} else if (tmplLine->type == LT_ECHO) {
4587		requote(tmplLine, config->cfi);
4588		static const char *prefix = "'Loading ";
4589		if (tmplLine->numElements > 1 &&
4590		strstr(tmplLine->elements[1].item, prefix)
4591		&& masterLine->next
4592		&& iskernel(masterLine->next->type)) {
4593		char *newTitle =
4594		malloc(strlen(prefix) +
4595		strlen(newKernelTitle) + 2);
4596
4597		strcpy(newTitle, prefix);
4598		strcat(newTitle, newKernelTitle);
4599		strcat(newTitle, "'");
4600		newLine =
4601		addLine(new, config->cfi, LT_ECHO,
4602		tmplLine->indent, newTitle);
4603		free(newTitle);
4604		} else {
4605		/* pass through other lines from the
4606		* template */
4607		newLine =
4608		addLineTmpl(new, tmplLine, newLine,
4609		NULL, config->cfi);
4610		}
4611		} else if (tmplLine->type == LT_DEVTREE &&
4612		tmplLine->numElements == 2
4613		&& newDevTreePath) {
4614		newLine =
4615		addLineTmpl(new, tmplLine, newLine,
4616		newDevTreePath + strlen(prefix),
4617		config->cfi);
4618		needs &= ~NEED_DEVTREE;
4619		} else if (tmplLine->type == LT_ENTRY_END
4620		&& needs & NEED_DEVTREE) {
4621		const char *ndtp = newDevTreePath;
4622		if (!strncmp
4623		(newDevTreePath, prefix, strlen(prefix)))
4624		ndtp += strlen(prefix);
4625		newLine = addLine(new, config->cfi, LT_DEVTREE,
4626		config->secondaryIndent,
4627		ndtp);
4628		needs &= ~NEED_DEVTREE;
4629		newLine =
4630		addLineTmpl(new, tmplLine, newLine, NULL,
4631		config->cfi);
4632		} else {
4633		/* pass through other lines from the template */
4634		newLine =
4635		addLineTmpl(new, tmplLine, newLine, NULL,
4636		config->cfi);
4637		}
4638		}
4639
4640	switch (config->cfi->keywords[i].type) {	} else {
4641	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4642	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4643	type = LT_KERNEL; break;	*/
4644	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4645	type = LT_TITLE; break;	case LT_KERNEL:
4646	default:	case LT_KERNEL_EFI:
4647	/* zipl strikes again */	case LT_KERNEL_16:
4648	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4649	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4650	chptr = newKernelTitle;	} else {
4651	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4652	break;	preferredLineType(LT_KERNEL,
4653	} else {	config->
4654	abort();	cfi),
4655	}	config->primaryIndent,
4656	}	newKernelPath +
4657		strlen(prefix));
4658	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	needs &= ~NEED_KERNEL;
4659	new->lines = newLine;	break;
4660	}	}
4661
4662	if (new->multiboot) {	case LT_HYPER:
4663	if (needs & KERNEL_MB)	newLine = addLine(new, config->cfi, LT_HYPER,
4664	newLine = addLine(new, config->cfi, LT_KERNEL,	config->primaryIndent,
4665	config->secondaryIndent,	newMBKernel + strlen(prefix));
4666	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4667	if (needs & KERNEL_KERNEL)	break;
4668	newLine = addLine(new, config->cfi, LT_MBMODULE,
4669	config->secondaryIndent,	case LT_MENUENTRY:{
4670	newKernelPath + strlen(prefix));	char *nkt = malloc(strlen(newKernelTitle) + 3);
4671	/* don't need to check for title as it's guaranteed to have been	strcpy(nkt, "'");
4672	* done as we only do multiboot with grub which uses title as	strcat(nkt, newKernelTitle);
4673	* a separator */	strcat(nkt, "'");
4674	if (needs & KERNEL_INITRD && newKernelInitrd)	newLine =
4675	newLine = addLine(new, config->cfi, LT_MBMODULE,	addLine(new, config->cfi, LT_MENUENTRY,
4676	config->secondaryIndent,	config->primaryIndent, nkt);
4677	newKernelInitrd + strlen(prefix));	free(nkt);
4678	} else {	needs &= ~NEED_TITLE;
4679	if (needs & KERNEL_KERNEL)	needs |= NEED_END;
4680	newLine = addLine(new, config->cfi, LT_KERNEL,	break;
4681	config->secondaryIndent,	}
4682	newKernelPath + strlen(prefix));	case LT_TITLE:
4683	if (needs & KERNEL_TITLE)	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4684	newLine = addLine(new, config->cfi, LT_TITLE,	char *templabel;
4685	config->secondaryIndent,	int x = 0, y = 0;
4686	newKernelTitle);
4687	if (needs & KERNEL_INITRD && newKernelInitrd)	templabel = strdup(newKernelTitle);
4688	newLine = addLine(new, config->cfi, LT_INITRD,	while (templabel[x]) {
4689	config->secondaryIndent,	if (templabel[x] == ' ') {
4690	newKernelInitrd + strlen(prefix));	y = x;
4691	}	while (templabel[y]) {
4692		templabel[y] =
4693		templabel[y + 1];
4694		y++;
4695		}
4696		}
4697		x++;
4698		}
4699		newLine = addLine(new, config->cfi, LT_TITLE,
4700		config->primaryIndent,
4701		templabel);
4702		free(templabel);
4703		} else {
4704		newLine = addLine(new, config->cfi, LT_TITLE,
4705		config->primaryIndent,
4706		newKernelTitle);
4707		}
4708		needs &= ~NEED_TITLE;
4709		break;
4710
4711	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	default:
4712	newMBKernelArgs, NULL)) return 1;	abort();
4713		}
4714		}
4715
4716	return 0;	struct singleLine *endLine = NULL;
4717		endLine = getLineByType(LT_ENTRY_END, new->lines);
4718		if (endLine) {
4719		removeLine(new, endLine);
4720		needs |= NEED_END;
4721		}
4722
4723		/* add the remainder of the lines, i.e. those that either
4724		* weren't present in the template, or in the case of no template,
4725		* all the lines following the entryStart.
4726		*/
4727		if (needs & NEED_TITLE) {
4728		newLine = addLine(new, config->cfi, LT_TITLE,
4729		config->secondaryIndent, newKernelTitle);
4730		needs &= ~NEED_TITLE;
4731		}
4732		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4733		newLine = addLine(new, config->cfi, LT_HYPER,
4734		config->secondaryIndent,
4735		newMBKernel + strlen(prefix));
4736		needs &= ~NEED_MB;
4737		}
4738		if (needs & NEED_KERNEL) {
4739		newLine = addLine(new, config->cfi,
4740		(new->multiboot
4741		&& getKeywordByType(LT_MBMODULE,
4742		config->cfi))
4743		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4744		config->
4745		cfi),
4746		config->secondaryIndent,
4747		newKernelPath + strlen(prefix));
4748		needs &= ~NEED_KERNEL;
4749		}
4750		if (needs & NEED_MB) {
4751		newLine = addLine(new, config->cfi, LT_HYPER,
4752		config->secondaryIndent,
4753		newMBKernel + strlen(prefix));
4754		needs &= ~NEED_MB;
4755		}
4756		if (needs & NEED_INITRD) {
4757		char *initrdVal;
4758		initrdVal =
4759		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4760		extraInitrds, extraInitrdCount);
4761		newLine =
4762		addLine(new, config->cfi,
4763		(new->multiboot
4764		&& getKeywordByType(LT_MBMODULE, config->cfi))
4765		? LT_MBMODULE : preferredLineType(LT_INITRD,
4766		config->cfi),
4767		config->secondaryIndent, initrdVal);
4768		free(initrdVal);
4769		needs &= ~NEED_INITRD;
4770		}
4771		if (needs & NEED_DEVTREE) {
4772		newLine = addLine(new, config->cfi, LT_DEVTREE,
4773		config->secondaryIndent, newDevTreePath);
4774		needs &= ~NEED_DEVTREE;
4775		}
4776
4777		/* NEEDS_END must be last on bootloaders that need it... */
4778		if (needs & NEED_END) {
4779		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4780		config->secondaryIndent, NULL);
4781		needs &= ~NEED_END;
4782		}
4783
4784		if (needs) {
4785		printf(_("grubby: needs=%d, aborting\n"), needs);
4786		abort();
4787		}
4788
4789		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4790		newMBKernelArgs, NULL)) {
4791		config->isModified = 1;
4792		return 1;
4793		}
4794
4795		return 0;
4796	}	}
4797
4798	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4799	poptContext optCon;	{
4800	char * grubConfig = NULL;	poptContext optCon;
4801	char * outputFile = NULL;	const char *grubConfig = NULL;
4802	int arg = 0;	char *outputFile = NULL;
4803	int flags = 0;	int arg = 0;
4804	int badImageOkay = 0;	int flags = 0;
4805	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4806	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4807	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4808	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4809	char * newKernelPath = NULL;	int configureExtLinux = 0;
4810	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4811	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4812	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4813	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4814	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4815	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4816	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4817	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4818	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4819	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4820	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4821	char * removeArgs = NULL;	int newIndex = 0;
4822	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4823	const char * chptr = NULL;	char *removeMBKernel = NULL;
4824	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4825	struct grubConfig * config;	char *defaultKernel = NULL;
4826	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4827	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4828	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4829	struct poptOption options[] = {	char *envPath = NULL;
4830	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4831	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4832	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4833	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4834	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4835	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4836	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4837	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4838	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4839	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4840	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4841	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4842	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4843	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4844	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4845	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4846	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4847	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4848	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4849		"new arguments for multiboot kernel being updated"), NULL},
4850		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4851		_
4852		("don't sanity check images in boot entries (for testing only)"),
4853		NULL},
4854		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4855		_
4856		("filesystem which contains /boot directory (for testing only)"),
4857		_("bootfs")},
4858		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4859		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4860		_("check which bootloader is installed on boot sector")},
4861	#endif	#endif
4862	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4863	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4864	_("path") },	_("path")},
4865	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4866	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4867	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4868	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4869	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4870	"template"), NULL },	"template"), NULL},
4871	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4872	_("display the path of the default kernel") },	_("print debugging information for failures")},
4873	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4874	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4875	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4876	_("configure grub bootloader") },	_("display the index of the default kernel")},
4877	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4878	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4879	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4880	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4881	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4882	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4883	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4884	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4885	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4886	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4887	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4888	_("path") },	_("path for environment data"),
4889	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4890	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4891	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4892	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4893	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4894	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4895	_("kernel-path") },	_("configure grub2 bootloader")},
4896	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4897	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4898	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4899	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4900	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4901	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4902	_("configure silo bootloader") },	_
4903	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4904	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4905	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4906	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4907	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4908	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4909	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4910	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4911	_("configure yaboot bootloader") },	_("path")},
4912	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4913	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4914	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4915	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4916	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4917		_("remove all entries for the specified kernel"),
4918	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4919	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4920		_("remove all entries for the specified multiboot kernel"),
4921	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4922	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4923	case 'v':	_("make the first entry referencing the specified kernel "
4924	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
4925	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4926	break;	_("make the given entry index the default entry"),
4927		_("entry-index")},
4928		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4929		_("use the given index when creating a new entry"),
4930		_("entry-index")},
4931		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4932		_("configure silo bootloader")},
4933		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4934		_("title to use for the new kernel entry"), _("entry-title")},
4935		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4936		_("updated information for the specified kernel"),
4937		_("kernel-path")},
4938		{"version", 'v', 0, NULL, 'v',
4939		_("print the version of this program and exit"), NULL},
4940		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4941		_("configure yaboot bootloader")},
4942		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4943		_("configure zipl bootloader")},
4944		POPT_AUTOHELP {0, 0, 0, 0, 0}
4945		};
4946
4947		useextlinuxmenu = 0;
4948
4949		int i = 0;
4950		for (int j = 1; j < argc; j++)
4951		i += strlen(argv[j]) + 1;
4952		saved_command_line = malloc(i);
4953		if (!saved_command_line) {
4954		fprintf(stderr, "grubby: %m\n");
4955		exit(1);
4956		}
4957		saved_command_line[0] = '\0';
4958		for (int j = 1; j < argc; j++) {
4959		strcat(saved_command_line, argv[j]);
4960		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4961		}
4962
4963		optCon = poptGetContext("grubby", argc, argv, options, 0);
4964		poptReadDefaultConfig(optCon, 1);
4965
4966		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4967		switch (arg) {
4968		case 'v':
4969		printf("grubby version %s\n", VERSION);
4970		exit(0);
4971		break;
4972		case 'i':
4973		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4974		extraInitrds[extraInitrdCount++] =
4975		strdup(poptGetOptArg(optCon));
4976		} else {
4977		fprintf(stderr,
4978		_
4979		("grubby: extra initrd maximum is %d\n"),
4980		extraInitrdCount);
4981		return 1;
4982		}
4983		break;
4984		}
4985	}	}
	}
4986
4987	if (arg < -1) {	if (arg < -1) {
4988	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4989	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4990	poptStrerror(arg));	poptStrerror(arg));
4991	return 1;	return 1;
4992	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
4993
4994	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
4995	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4996	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
4997	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;
	}
4998
4999	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5000	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
5001	cfi = &eliloConfigType;	configureExtLinux) > 1) {
5002	#elif __powerpc__	fprintf(stderr,
5003	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
5004	#elif __sparc__	return 1;
5005	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
5006	#elif __s390__	fprintf(stderr,
5007	cfi = &ziplConfigType;	_
5008	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
5009	cfi = &ziplConfigtype;	return 1;
5010	#else	} else if (configureGrub2) {
5011	cfi = &grubConfigType;	cfi = &grub2ConfigType;
5012	#endif	if (envPath)
5013	}	cfi->envFile = envPath;
5014		} else if (configureLilo) {
5015		cfi = &liloConfigType;
5016		} else if (configureGrub) {
5017		cfi = &grubConfigType;
5018		} else if (configureELilo) {
5019		cfi = &eliloConfigType;
5020		} else if (configureYaboot) {
5021		cfi = &yabootConfigType;
5022		} else if (configureSilo) {
5023		cfi = &siloConfigType;
5024		} else if (configureZipl) {
5025		cfi = &ziplConfigType;
5026		} else if (configureExtLinux) {
5027		cfi = &extlinuxConfigType;
5028		useextlinuxmenu = 1;
5029		}
5030
5031		if (!cfi) {
5032		if (grub2FindConfig(&grub2ConfigType)) {
5033		cfi = &grub2ConfigType;
5034		if (envPath)
5035		cfi->envFile = envPath;
5036		} else
5037		#ifdef __ia64__
5038		cfi = &eliloConfigType;
5039		#elif __powerpc__
5040		cfi = &yabootConfigType;
5041		#elif __sparc__
5042		cfi = &siloConfigType;
5043		#elif __s390__
5044		cfi = &ziplConfigType;
5045		#elif __s390x__
5046		cfi = &ziplConfigtype;
5047		#else
5048		cfi = &grubConfigType;
5049		#endif
5050		}
5051
5052	if (!grubConfig)	if (!grubConfig) {
5053	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
5054		grubConfig = cfi->findConfig(cfi);
5055		if (!grubConfig)
5056		grubConfig = cfi->defaultConfig;
5057		}
5058
5059	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5060	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5061	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5062	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5063		|| (defaultIndex >= 0))) {
5064		fprintf(stderr,
5065		_("grubby: --bootloader-probe may not be used with "
5066	"specified option"));	"specified option"));
5067	return 1;	return 1;
5068	}	}
5069
5070	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5071	removeKernelPath)) {	removeKernelPath)) {
5072	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5073	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5074	return 1;	return 1;
5075	}	}
5076
5077	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5078	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5079	return 1;	return 1;
5080	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5081	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5082	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5083	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5084	return 1;	return 1;
5085	}	}
5086
5087	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5088	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5089	"not be used together"));	"not be used together"));
5090	return 1;	return 1;
5091	}	}
5092
5093	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5094	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5095		"may not be used together\n"));
5096		return 1;
5097		} else if (defaultKernel && removeKernelPath &&
5098		!strcmp(defaultKernel, removeKernelPath)) {
5099		fprintf(stderr,
5100		_("grubby: cannot make removed kernel the default\n"));
5101		return 1;
5102		} else if (defaultKernel && newKernelPath &&
5103		!strcmp(defaultKernel, newKernelPath)) {
5104		makeDefault = 1;
5105		defaultKernel = NULL;
5106		} else if (defaultKernel && (defaultIndex >= 0)) {
5107		fprintf(stderr,
5108		_("grubby: --set-default and --set-default-index "
5109	"may not be used together\n"));	"may not be used together\n"));
5110	return 1;	return 1;
5111	} 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;
	}
5112
5113	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5114	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5115	"is used\n"));	_("grubby: output file must be specified if stdin "
5116	return 1;	"is used\n"));
5117	}	return 1;
5118		}
5119
5120	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5121	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5122	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5123	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5124	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5125	}	return 1;
5126		}
5127
5128	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5129
5130	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5131	if (!bootPrefix) {	if (!bootPrefix) {
5132	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5133	if (!bootPrefix) return 1;	if (!bootPrefix)
5134	} else {	return 1;
5135	/* this shouldn't end with a / */	} else {
5136	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5137	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5138		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5139		}
5140		} else {
5141		bootPrefix = "";
5142	}	}
	} else {
	bootPrefix = "";
	}
5143
5144	if (bootloaderProbe) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5145	int lrc = 0, grc = 0;	fprintf(stderr,
5146	struct grubConfig * lconfig, * gconfig;	_("grubby: %s doesn't allow multiple initrds\n"),
5147		cfi->defaultConfig);
5148	if (!access(grubConfigType.defaultConfig, F_OK)) {	return 1;
5149	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);
	}
5150
5151	if (lrc == 1 || grc == 1) return 1;	if (bootloaderProbe) {
5152		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5153		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5154
5155		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5156		if (grub2config) {
5157		gconfig = readConfig(grub2config, &grub2ConfigType);
5158		if (!gconfig)
5159		gr2c = 1;
5160		else
5161		gr2c = checkForGrub2(gconfig);
5162		}
5163
5164	if (lrc == 2) printf("lilo\n");	const char *grubconfig = grubFindConfig(&grubConfigType);
5165	if (grc == 2) printf("grub\n");	if (!access(grubconfig, F_OK)) {
5166		gconfig = readConfig(grubconfig, &grubConfigType);
5167		if (!gconfig)
5168		grc = 1;
5169		else
5170		grc = checkForGrub(gconfig);
5171		}
5172
5173	return 0;	if (!access(liloConfigType.defaultConfig, F_OK)) {
5174	}	lconfig =
5175		readConfig(liloConfigType.defaultConfig,
5176		&liloConfigType);
5177		if (!lconfig)
5178		lrc = 1;
5179		else
5180		lrc = checkForLilo(lconfig);
5181		}
5182
5183	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5184	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5185		&eliloConfigType);
5186		if (!econfig)
5187		erc = 1;
5188		else
5189		erc = checkForElilo(econfig);
5190		}
5191
5192	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5193	struct singleLine * line;	lconfig =
5194	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5195	char * rootspec;	&extlinuxConfigType);
5196		if (!lconfig)
5197	if (config->defaultImage == -1) return 0;	extrc = 1;
5198	entry = findEntryByIndex(config, config->defaultImage);	else
5199	if (!entry) return 0;	extrc = checkForExtLinux(lconfig);
5200	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));
5201
5202	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5203	} else if (kernelInfo)	yconfig = readConfig(yabootConfigType.defaultConfig,
5204	return displayInfo(config, kernelInfo, bootPrefix);	&yabootConfigType);
5205		if (!yconfig)
5206		yrc = 1;
5207		else
5208		yrc = checkForYaboot(yconfig);
5209		}
5210
5211	if (copyDefault) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5212	template = findTemplate(config, bootPrefix, NULL, 0, flags);	|| erc == 1)
5213	if (!template) return 1;	return 1;
5214	}
5215		if (lrc == 2)
5216		printf("lilo\n");
5217		if (gr2c == 2)
5218		printf("grub2\n");
5219		if (grc == 2)
5220		printf("grub\n");
5221		if (extrc == 2)
5222		printf("extlinux\n");
5223		if (yrc == 2)
5224		printf("yaboot\n");
5225		if (erc == 2)
5226		printf("elilo\n");
5227
5228		return 0;
5229		}
5230
5231		if (grubConfig == NULL) {
5232		printf("Could not find bootloader configuration file.\n");
5233		exit(1);
5234		}
5235
5236	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5237	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5238	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5239	bootPrefix, flags);
5240	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5241	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5242	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5243	if (addNewKernel(config, template, bootPrefix, newKernelPath,	char *rootspec;
5244	newKernelTitle, newKernelArgs, newKernelInitrd,
5245	newMBKernel, newMBKernelArgs)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5246		return 0;
5247		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5248	if (numEntries(config) == 0) {	cfi->defaultIsSaved)
5249	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	config->defaultImage = FIRST_ENTRY_INDEX;
5250	"Not writing out new config.\n"));	entry = findEntryByIndex(config, config->defaultImage);
5251	return 1;	if (!entry)
5252	}	return 0;
5253		if (!suitableImage(entry, bootPrefix, 0, flags))
5254		return 0;
5255
5256		line =
5257		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5258		LT_KERNEL_16, entry->lines);
5259		if (!line)
5260		return 0;
5261
5262		rootspec = getRootSpecifier(line->elements[1].item);
5263		printf("%s%s\n", bootPrefix, line->elements[1].item +
5264		((rootspec != NULL) ? strlen(rootspec) : 0));
5265
5266		return 0;
5267
5268		} else if (displayDefaultTitle) {
5269		struct singleLine *line;
5270		struct singleEntry *entry;
5271
5272		if (config->defaultImage == NO_DEFAULT_ENTRY)
5273		return 0;
5274		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5275		cfi->defaultIsSaved)
5276		config->defaultImage = FIRST_ENTRY_INDEX;
5277		entry = findEntryByIndex(config, config->defaultImage);
5278		if (!entry)
5279		return 0;
5280
5281		if (!configureGrub2) {
5282		char *title;
5283		line = getLineByType(LT_TITLE, entry->lines);
5284		if (!line)
5285		return 0;
5286		title = extractTitle(config, line);
5287		if (!title)
5288		return 0;
5289		printf("%s\n", title);
5290		free(title);
5291		} else {
5292		char *title;
5293
5294		dbgPrintf
5295		("This is GRUB2, default title is embeded in menuentry\n");
5296		line = getLineByType(LT_MENUENTRY, entry->lines);
5297		if (!line)
5298		return 0;
5299		title = grub2ExtractTitle(line);
5300		if (title)
5301		printf("%s\n", title);
5302		}
5303		return 0;
5304
5305		} else if (displayDefaultIndex) {
5306		if (config->defaultImage == NO_DEFAULT_ENTRY)
5307		return 0;
5308		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5309		cfi->defaultIsSaved)
5310		config->defaultImage = FIRST_ENTRY_INDEX;
5311		printf("%i\n", config->defaultImage);
5312		return 0;
5313
5314		} else if (kernelInfo)
5315		return displayInfo(config, kernelInfo, bootPrefix);
5316
5317		if (copyDefault) {
5318		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5319		if (!template)
5320		return 1;
5321		}
5322
5323		markRemovedImage(config, removeKernelPath, bootPrefix);
5324		markRemovedImage(config, removeMBKernel, bootPrefix);
5325		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5326		makeDefault, bootPrefix, flags, defaultIndex,
5327		newIndex);
5328		setFallbackImage(config, newKernelPath != NULL);
5329		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5330		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5331		return 1;
5332		if (updateKernelPath && newKernelInitrd) {
5333		if (newMBKernel) {
5334		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5335		bootPrefix, newKernelInitrd,
5336		newKernelTitle))
5337		return 1;
5338		} else {
5339		if (updateInitrd(config, updateKernelPath, bootPrefix,
5340		newKernelInitrd, newKernelTitle))
5341		return 1;
5342		}
5343		}
5344		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5345		newKernelTitle, newKernelArgs, newKernelInitrd,
5346		(const char **)extraInitrds, extraInitrdCount,
5347		newMBKernel, newMBKernelArgs, newDevTreePath,
5348		newIndex))
5349		return 1;
5350
5351		if (numEntries(config) == 0) {
5352		fprintf(stderr,
5353		_("grubby: doing this would leave no kernel entries. "
5354		"Not writing out new config.\n"));
5355		return 1;
5356		}
5357
5358	if (!outputFile)	if (!outputFile)
5359	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5360
5361	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5362	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3021