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 3026 by niro, Tue Jun 27 14:43:04 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;	int trueIndex, currentIndex;
1716	} else if (line) {
1717	if (!strcmp(defaultLine->elements[1].item,	trueIndex = 0;
1718	extractTitle(line))) break;	currentIndex = 0;
1719	}
1720	i++;	while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721	}	if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751	if (entry) cfg->defaultImage = i;	entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782	}	}
	}
	return cfg;
1783	}	}
1784
1785	static void writeDefault(FILE * out, char * indent,	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	char * separator, struct grubConfig * cfg) {	const char *prefix)
1787	struct singleEntry * entry;	{
1788	struct singleLine * line;	FILE *out;
1789	int i;	struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828	if (cfg->defaultImage == DEFAULT_SAVED)	tmpOutName = alloca(strlen(outName) + 2);
1829	fprintf(out, "%sdefault%ssaved\n", indent, separator);	sprintf(tmpOutName, "%s-", outName);
1830	else if (cfg->defaultImage > -1) {	out = fopen(tmpOutName, "w");
1831	if (cfg->cfi->defaultIsIndex) {	if (!out) {
1832	fprintf(out, "%sdefault%s%d\n", indent, separator,	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833	cfg->defaultImage);	tmpOutName, strerror(errno));
1834	} else {	return 1;
1835	int image = cfg->defaultImage;	}
1836
1837	entry = cfg->entries;	if (!stat(outName, &sb)) {
1838	while (entry && entry->skip) entry = entry->next;	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850	i = 0;	line = cfg->theLines;
1851	while (entry && i < image) {	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852	entry = entry->next;	while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881	while (entry && entry->skip) entry = entry->next;	line = line->next;
1882	i++;	}
	}
1883
1884	if (!entry) return;	if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889	line = entry->lines;	i = 0;
1890	while (line && line->type != LT_TITLE) line = line->next;	while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908	if (line && line->numElements >= 2)	if (tmpOutName) {
1909	fprintf(out, "%sdefault%s%s\n", indent, separator,	if (rename(tmpOutName, outName)) {
1910	line->elements[1].item);	fprintf(stderr,
1911	else if (line && (line->numElements == 1) &&	_("grubby: error moving %s to %s: %s\n"),
1912	cfg->cfi->titleBracketed) {	tmpOutName, outName, strerror(errno));
1913	fprintf(out, "%sdefault%s%s\n", indent, separator,	unlink(outName);
1914	extractTitle(line));	return 1;
1915	}	}
1916	}	}
1917	}
1918		return 0;
1919	}	}
1920
1921	static int writeConfig(struct grubConfig * cfg, char * outName,	static int numEntries(struct grubConfig *cfg)
1922	const char * prefix) {	{
1923	FILE * out;	int i = 0;
1924	struct singleLine * line;	struct singleEntry *entry;
1925	struct singleEntry * entry;
1926	char * tmpOutName;	entry = cfg->entries;
1927	int needs = MAIN_DEFAULT;	while (entry) {
1928	struct stat sb;	if (!entry->skip)
1929	int i;	i++;
1930		entry = entry->next;
1931	if (!strcmp(outName, "-")) {	}
1932	out = stdout;	return i;
1933	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;
	}
	}
	}
1934
1935	line = cfg->theLines;	static char *findDiskForRoot()
1936	while (line) {	{
1937	if (line->type == LT_DEFAULT) {	int fd;
1938	writeDefault(out, line->indent, line->elements[0].indent, cfg);	char buf[65536];
1939	needs &= ~MAIN_DEFAULT;	char *devname;
1940	} else if (line->type == LT_FALLBACK) {	char *chptr;
1941	if (cfg->fallbackImage > -1)	int rc;
1942	fprintf(out, "%s%s%s%d\n", line->indent,
1943	line->elements[0].item, line->elements[0].indent,	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944	cfg->fallbackImage);	fprintf(stderr, "grubby: failed to open %s: %s\n",
1945	} else {	_PATH_MOUNTED, strerror(errno));
1946	if (lineWrite(out, line, cfg->cfi) == -1) {	return NULL;
1947	fprintf(stderr, _("grubby: error writing %s: %s\n"),	}
1948	tmpOutName, strerror(errno));
1949	fclose(out);	rc = read(fd, buf, sizeof(buf) - 1);
1950	unlink(tmpOutName);	if (rc <= 0) {
1951	return 1;	fprintf(stderr, "grubby: failed to read %s: %s\n",
1952	}	_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955	}	}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	line = line->next;	char *foundanswer = NULL;
	}
1961
1962	if (needs & MAIN_DEFAULT) {	while (chptr && chptr != buf + rc) {
1963	writeDefault(out, cfg->primaryIndent, "=", cfg);	devname = chptr;
	needs &= ~MAIN_DEFAULT;
	}
1964
1965	i = 0;	/*
1966	while ((entry = findEntryByIndex(cfg, i++))) {	* The first column of a mtab entry is the device, but if the
1967	if (entry->skip) continue;	* entry is a special device it won't start with /, so move
1968		* on to the next line.
1969		*/
1970		if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977	line = entry->lines;	/* Seek to the next space */
1978	while (line) {	chptr = strchr(chptr, ' ');
1979	if (lineWrite(out, line, cfg->cfi) == -1) {	if (!chptr) {
1980	fprintf(stderr, _("grubby: error writing %s: %s\n"),	fprintf(stderr, "grubby: error parsing %s: %s\n",
1981	tmpOutName, strerror(errno));	_PATH_MOUNTED, strerror(errno));
1982	fclose(out);	return NULL;
1983	unlink(tmpOutName);	}
	return 1;
	}
	line = line->next;
	}
	}
1984
1985	if (tmpOutName) {	/*
1986	if (rename(tmpOutName, outName)) {	* The second column of a mtab entry is the mount point, we
1987	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	* are looking for '/' obviously.
1988	tmpOutName, outName, strerror(errno));	*/
1989	unlink(outName);	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990	return 1;	/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994		/* Next line */
1995		chptr = strchr(chptr, '\n');
1996		if (chptr)
1997		chptr++;
1998	}	}
	}
1999
2000	return 0;	/* Return the last / entry found */
2001	}	if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007	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;
2008	}	}
2009
2010	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	void printEntry(struct singleEntry *entry, FILE * f)
2011	int skipRemoved, int flags) {	{
2012	struct singleLine * line;	int i;
2013	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;
2014
2015	if (line && line->numElements >= 2) {	for (line = entry->lines; line; line = line->next) {
2016	dev = line->elements[1].item;	log_message(f, "DBG: %s", line->indent);
2017	} else {	for (i = 0; i < line->numElements; i++) {
2018	int type;	/* Need to handle this, because we strip the quotes from
2019	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS */	* menuentry when read it. */
2020	line = entry->lines;	if (line->type == LT_MENUENTRY && i == 1) {
2021		if (!isquote(*line->elements[i].item))
2022	type = ((entry->multiboot) ? LT_MBMODULE : LT_KERNELARGS);	log_message(f, "\'%s\'",
2023		line->elements[i].item);
2024	while (line && line->type != type) line = line->next;	else
2025		log_message(f, "%s",
2026	/* failed to find one */	line->elements[i].item);
2027	if (!line) return 0;	log_message(f, "%s", line->elements[i].indent);
2028
2029	for (i = 1; i < line->numElements; i++)	continue;
2030	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	}
2031	if (i < line->numElements)
2032	dev = line->elements[i].item + 5;	log_message(f, "%s%s",
2033	else {	line->elements[i].item,
2034	/* it failed too...  can't find root= */	line->elements[i].indent);
2035	return 0;	}
2036	}	log_message(f, "\n");
2037	}	}
2038	}	}
	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;
	}
2039
2040	if (*dev == '/') {	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041	if (stat(dev, &sb))	...)
2042	return 0;	{
2043	} else {	static int once;
2044	sb.st_rdev = strtol(dev, &end, 16);	va_list argp, argq;
2045	if (*end) return 0;
2046	}	va_start(argp, fmt);
2047	stat("/", &sb2);
2048		va_copy(argq, argp);
2049		if (!once) {
2050		log_time(NULL);
2051		log_message(NULL, "command line: %s\n", saved_command_line);
2052		}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079		}
2080
2081	if (sb.st_rdev != sb2.st_dev) return 0;	#define beginswith(s, c) ((s) && (s)[0] == (c))
2082
2083	return 1;	static int endswith(const char *s, char c)
2084	}	{
2085		int slen;
2086
2087	/* returns the first match on or after the one pointed to by index (if index	if (!s || !s[0])
2088	is not NULL) which is not marked as skip */	return 0;
2089	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;
2090
2091	if (isdigit(*kernel)) {	return s[slen] == c;
2092	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	}
2093
2094	i = 0;	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	indexVars[i] = strtol(kernel, &chptr, 10);	int skipRemoved, int flags)
2096	while (*chptr == ',') {	{
2097	i++;	struct singleLine *line;
2098	kernel = chptr + 1;	char *fullName;
2099	indexVars[i] = strtol(kernel, &chptr, 10);	int i;
2100		char *dev;
2101		char *rootspec;
2102		char *rootdev;
2103
2104		if (skipRemoved && entry->skip) {
2105		notSuitablePrintf(entry, 0, "marked to skip\n");
2106		return 0;
2107		}
2108
2109		line =
2110		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111		entry->lines);
2112		if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120	}	}
2121
2122	if (*chptr) {	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	/* can't parse it, bail */	notSuitablePrintf(entry, 1, "\n");
2124	return NULL;	return 1;
2125	}	}
2126
2127	indexVars[i + 1] = -1;	fullName = alloca(strlen(bootPrefix) +
2128		strlen(line->elements[1].item) + 1);
2129	i = 0;	rootspec = getRootSpecifier(line->elements[1].item);
2130	if (index) {	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131	while (i < *index) i++;	int hasslash = endswith(bootPrefix, '/') ||
2132	if (indexVars[i] == -1) return NULL;	beginswith(line->elements[1].item + rootspec_offset, '/');
2133		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135		if (access(fullName, R_OK)) {
2136		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137		return 0;
2138		}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144		} else {
2145		/* look for a lilo style LT_ROOT line */
2146		line = getLineByType(LT_ROOT, entry->lines);
2147
2148		if (line && line->numElements >= 2) {
2149		dev = line->elements[1].item;
2150		} else {
2151		/* didn't succeed in finding a LT_ROOT, let's try
2152		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154		*/
2155		line =
2156		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157		entry->lines);
2158
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165		for (i = 1; i < line->numElements; i++)
2166		if (!strncasecmp
2167		(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements)
2170		dev = line->elements[i].item + 5;
2171		else {
2172		notSuitablePrintf(entry, 0,
2173		"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
2179
2180	entry = findEntryByIndex(config, indexVars[i]);	dev = getpathbyspec(dev);
2181	if (!entry) return NULL;	if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188		rootdev = findDiskForRoot();
2189		if (!rootdev) {
2190		notSuitablePrintf(entry, 0, "can't find root device\n");
2191		return 0;
2192		}
2193
2194		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195		notSuitablePrintf(entry, 0,
2196		"uuid missing: rootdev %s, dev %s\n",
2197		getuuidbydev(rootdev), getuuidbydev(dev));
2198		free(rootdev);
2199		return 0;
2200		}
2201
2202		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203		notSuitablePrintf(entry, 0,
2204		"uuid mismatch: rootdev %s, dev %s\n",
2205		getuuidbydev(rootdev), getuuidbydev(dev));
2206		free(rootdev);
2207		return 0;
2208		}
2209
2210	line = entry->lines;	free(rootdev);
2211	while (line && line->type != LT_KERNEL)	notSuitablePrintf(entry, 1, "\n");
	line = line->next;
2212
2213	if (!line) return NULL;	return 1;
2214		}
2215
2216	if (index) *index = indexVars[i];	/* returns the first match on or after the one pointed to by index (if index
2217	return entry;	is not NULL) which is not marked as skip */
2218	}	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219		const char *kernel, const char *prefix,
2220	if (!strcmp(kernel, "DEFAULT")) {	int *index)
2221	if (index && *index > config->defaultImage) {	{
2222	entry = NULL;	struct singleEntry *entry = NULL;
2223	} else {	struct singleLine *line;
2224	entry = findEntryByIndex(config, config->defaultImage);	int i;
2225	if (entry && entry->skip)	char *chptr;
2226	entry = NULL;	char *rootspec = NULL;
2227	else if (index)	enum lineType_e checkType = LT_KERNEL;
2228	*index = config->defaultImage;
2229	}	if (isdigit(*kernel)) {
2230	} else if (!strcmp(kernel, "ALL")) {	int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231	if (index)
2232	i = *index;	i = 0;
2233	else	indexVars[i] = strtol(kernel, &chptr, 10);
2234	i = 0;	while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	while ((entry = findEntryByIndex(config, i))) {	if (*chptr) {
2241	if (!entry->skip) break;	/* can't parse it, bail */
2242	i++;	return NULL;
2243	}	}
2244
2245	if (entry && index)	indexVars[i + 1] = -1;
2246	*index = i;
2247	} else {	i = 0;
2248	if (index)	if (index) {
2249	i = *index;	while (i < *index) {
2250	else	i++;
2251	i = 0;	if (indexVars[i] == -1)
2252		return NULL;
2253		}
2254		}
2255
2256		entry = findEntryByIndex(config, indexVars[i]);
2257		if (!entry)
2258		return NULL;
2259
2260		line =
2261		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262		LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269		}
2270
2271		if (!strcmp(kernel, "DEFAULT")) {
2272		if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274		} else {
2275		entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287		while ((entry = findEntryByIndex(config, i))) {
2288		if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293		if (entry && index)
2294		*index = i;
2295		} else {
2296		if (index)
2297		i = *index;
2298		else
2299		i = 0;
2300
2301		if (!strncmp(kernel, "TITLE=", 6)) {
2302		prefix = "";
2303		checkType = LT_TITLE | LT_MENUENTRY;
2304		kernel += 6;
2305		}
2306
2307	if (!strncmp(kernel, "TITLE=", 6)) {	for (entry = findEntryByIndex(config, i); entry;
2308	prefix = "";	entry = entry->next, i++) {
2309	checkType = LT_TITLE;	if (entry->skip)
2310	kernel += 6;	continue;
2311	}
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313	while ((entry = findEntryByIndex(config, i))) {	checkType, kernel, entry);
2314	line = entry->lines;
2315	while (line && line->type != checkType) line=line->next;	/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318	if (line && line->numElements >= 2 && !entry->skip) {	if (entry->multiboot && checkType == LT_KERNEL)
2319	rootspec = getRootSpecifier(line->elements[1].item);	ct = LT_KERNEL | LT_KERNEL_EFI |
2320	if (!strcmp(line->elements[1].item  +	LT_MBMODULE | LT_HYPER |
2321	((rootspec != NULL) ? strlen(rootspec) : 0),	LT_KERNEL_16;
2322	kernel + strlen(prefix)))	else if (checkType & LT_KERNEL)
2323	break;	ct = checkType | LT_KERNEL_EFI |
2324	}	LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326	/* have to check multiboot lines too */	if (!line)
2327	if (entry->multiboot) {	break; /* not found in this entry */
2328	while (line && line->type != LT_MBMODULE) line = line->next;
2329	if (line && line->numElements >= 2 && !entry->skip) {	if (line && line->type != LT_MENUENTRY &&
2330	rootspec = getRootSpecifier(line->elements[1].item);	line->numElements >= 2) {
2331	if (!strcmp(line->elements[1].item  +	rootspec =
2332	((rootspec != NULL) ? strlen(rootspec) : 0),	getRootSpecifier(line->elements[1].
2333	kernel + strlen(prefix)))	item);
2334	break;	if (!strcmp
2335	}	(line->elements[1].item +
2336	}	((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346		/* make sure this entry has a kernel identifier; this skips
2347		* non-Linux boot entries (could find netbsd etc, though, which is
2348		* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357	i++;	if (index)
2358		*index = i;
2359	}	}
2360
2361	if (index) *index = i;	return entry;
2362	}	}
2363
2364	if (!entry) return NULL;	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365		int *index)
2366		{
2367		struct singleEntry *entry;
2368		struct singleLine *line;
2369		int i;
2370		char *newtitle;
2371
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373		if (index && i < *index)
2374		continue;
2375		line = getLineByType(LT_TITLE, entry->lines);
2376		if (!line)
2377		line = getLineByType(LT_MENUENTRY, entry->lines);
2378		if (!line)
2379		continue;
2380		newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382		continue;
2383		if (!strcmp(title, newtitle))
2384		break;
2385		}
2386
2387	/* make sure this entry has a kernel identifier; this skips non-Linux	if (!entry)
2388	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);
	}
2389
2390	return entry;	if (index)
2391		*index = i;
2392		return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398
2399	entry = cfg->entries;	entry = cfg->entries;
2400	while (index && entry) {	while (index && entry) {
2401	entry = entry->next;	entry = entry->next;
2402	index--;	index--;
2403	}	}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* 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 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* 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,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->defaultImage > -1) {
2419	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2420	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2421	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2422	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423		if (defTitle) {
2424		int index = 0;
2425		if (isnumber(defTitle)) {
2426		index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return entry;	return entry;
2468	}	}
2469
2470	index++;	index++;
2471	}	}
2472
2473	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2474		_("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		struct singleEntry *entry;
2504	if (!image) return;
2505		if (!image)
2506	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	return;
2507	entry->skip = 1;
2508	}	/* check and see if we're removing the default image */
2509		if (isdigit(*image)) {
2510	void setDefaultImage(struct grubConfig * config, int hasNew,	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	const char * defaultKernelPath, int newIsDefault,	if (entry)
2512	const char * prefix, int flags) {	entry->skip = 1;
2513	struct singleEntry * entry, * entry2, * newDefault;	return;
2514	int i, j;	}
2515
2516	if (newIsDefault) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	config->defaultImage = 0;	entry->skip = 1;
2518	return;	}
2519	} else if (defaultKernelPath) {
2520	i = 0;	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	config->defaultImage = i;	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524		{
2525		struct singleEntry *bootEntry, *newDefault;
2526		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2527
2528		/* handle the two cases where the user explictly picks the default
2529		* boot entry index as it would exist post-modification */
2530
2531		/* Case 1: user chose to make the latest boot entry the default */
2532		if (newBootEntryIsDefault) {
2533		config->defaultImage = newBootEntryIndex;
2534		return;
2535		}
2536
2537		/* Case 2: user picked an arbitrary index as the default boot entry */
2538		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2539		&& config->cfi->defaultIsIndex) {
2540		indexToVerify = newDefaultBootEntryIndex;
2541
2542		/* user chose to make latest boot entry the default */
2543		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2544		config->defaultImage = newBootEntryIndex;
2545		return;
2546		}
2547
2548		/* the user picks the default index based on the
2549		* order of the bootloader configuration after
2550		* modification; ensure we are checking for the
2551		* existence of the correct entry */
2552		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2553		if (!config->isModified)
2554		indexToVerify--;
2555		}
2556
2557		/* verify the user selected index will exist */
2558		if (findEntryByIndex(config, indexToVerify)) {
2559		config->defaultImage = newDefaultBootEntryIndex;
2560		} else {
2561		config->defaultImage = NO_DEFAULT_ENTRY;
2562		}
2563
2564		return;
2565		}
2566
2567		/* handle cases where the index value may shift */
2568
2569		/* check validity of existing default or first-entry-found
2570		selection */
2571		if (defaultKernelPath) {
2572		/* we must initialize this */
2573		firstKernelEntryIndex = 0;
2574		/* user requested first-entry-found */
2575		if (!findEntryByPath(config, defaultKernelPath,
2576		prefix, &firstKernelEntryIndex)) {
2577		/* don't change default if can't find match */
2578		config->defaultImage = NO_DEFAULT_ENTRY;
2579		return;
2580		}
2581
2582		config->defaultImage = firstKernelEntryIndex;
2583
2584		/* this is where we start looking for decrement later */
2585		currentLookupIndex = config->defaultImage;
2586
2587		if (isAddingBootEntry && !config->isModified &&
2588		(newBootEntryIndex < config->defaultImage)) {
2589		/* increment because new entry added before default */
2590		config->defaultImage++;
2591		}
2592	} else {	} else {
2593	config->defaultImage = -1;	/* use pre-existing default entry */
2594	return;	currentLookupIndex = config->defaultImage;
2595
2596		if (isAddingBootEntry
2597		&& (newBootEntryIndex <= config->defaultImage)) {
2598		config->defaultImage++;
2599
2600		if (config->isModified) {
2601		currentLookupIndex++;
2602		}
2603		}
2604		}
2605
2606		/* sanity check - is this entry index valid? */
2607		bootEntry = findEntryByIndex(config, currentLookupIndex);
2608
2609		if ((bootEntry && bootEntry->skip) || !bootEntry) {
2610		/* entry is to be skipped or is invalid */
2611		if (isAddingBootEntry) {
2612		config->defaultImage = newBootEntryIndex;
2613		return;
2614		}
2615		newDefault =
2616		findTemplate(config, prefix, &config->defaultImage, 1,
2617		flags);
2618		if (!newDefault) {
2619		config->defaultImage = NO_DEFAULT_ENTRY;
2620		}
2621
2622		return;
2623		}
2624
2625		currentLookupIndex--;
2626
2627		/* decrement index by the total number of entries deleted */
2628
2629		for (indexToVerify = currentLookupIndex;
2630		indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2631
2632		bootEntry = findEntryByIndex(config, indexToVerify);
2633
2634		if (bootEntry && bootEntry->skip) {
2635		config->defaultImage--;
2636		}
2637	}	}
2638	}	}
2639
2640	/* defaultImage now points to what we'd like to use, but before any order	void setFallbackImage(struct grubConfig *config, int hasNew)
2641	changes */	{
2642	if (config->defaultImage == DEFAULT_SAVED)	struct singleEntry *entry, *entry2;
2643	/* default is set to saved, we don't want to change it */	int j;
2644	return;
2645		if (config->fallbackImage == -1)
2646	if (config->defaultImage > -1)	return;
2647	entry = findEntryByIndex(config, config->defaultImage);
2648	else	entry = findEntryByIndex(config, config->fallbackImage);
2649	entry = NULL;	if (!entry || entry->skip) {
2650		config->fallbackImage = -1;
2651		return;
2652		}
2653
	if (entry && !entry->skip) {
	/* we can preserve the default */
2654	if (hasNew)	if (hasNew)
2655	config->defaultImage++;	config->fallbackImage++;
2656
2657	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2658	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2659	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2660	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2661	}	config->fallbackImage--;
2662	} 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;
	}
2663	}	}
2664
2665	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2666	struct singleEntry * entry, * entry2;	{
2667	int j;	struct singleLine *line;
2668		char *root = NULL;
2669	if (config->fallbackImage == -1) return;	int i;
2670		int j;
2671	entry = findEntryByIndex(config, config->fallbackImage);
2672	if (!entry || entry->skip) {	printf("index=%d\n", index);
2673	config->fallbackImage = -1;
2674	return;	line =
2675	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2676		entry->lines);
2677		if (!line) {
2678		printf("non linux entry\n");
2679		return;
2680		}
2681
2682	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2683	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2684		else
2685	/* 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--;
	}
	}
2686
2687	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2688	struct singleLine * line;	printf("args=\"");
2689	char * root = NULL;	i = 2;
2690	int i;	while (i < line->numElements) {
2691		if (!strncmp(line->elements[i].item, "root=", 5)) {
2692	line = entry->lines;	root = line->elements[i].item + 5;
2693	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2694		printf("%s%s", line->elements[i].item,
2695	printf("index=%d\n", index);	line->elements[i].indent);
2696		}
2697	printf("kernel=%s\n", line->elements[1].item);
2698		i++;
2699	if (line->numElements >= 3) {	}
2700	printf("args=\"");	printf("\"\n");
2701	i = 2;	} else {
2702	while (i < line->numElements) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2703	if (!strncmp(line->elements[i].item, "root=", 5)) {	if (line) {
2704	root = line->elements[i].item + 5;	char *s;
2705	} else {
2706	printf("%s%s", line->elements[i].item,	printf("args=\"");
2707	line->elements[i].indent);	i = 1;
2708	}	while (i < line->numElements) {
2709		if (!strncmp
2710		(line->elements[i].item, "root=", 5)) {
2711		root = line->elements[i].item + 5;
2712		} else {
2713		s = line->elements[i].item;
2714
2715		printf("%s%s", s,
2716		line->elements[i].indent);
2717		}
2718
2719	i++;	i++;
2720		}
2721
2722		s = line->elements[i - 1].indent;
2723		printf("\"\n");
2724		}
2725		}
2726
2727		if (!root) {
2728		line = getLineByType(LT_ROOT, entry->lines);
2729		if (line && line->numElements >= 2)
2730		root = line->elements[1].item;
2731	}	}
2732	printf("\"\n");
2733	} else {	if (root) {
2734	line = entry->lines;	char *s = alloca(strlen(root) + 1);
2735	while (line && line->type != LT_KERNELARGS) line=line->next;
2736		strcpy(s, root);
2737		if (s[strlen(s) - 1] == '"')
2738		s[strlen(s) - 1] = '\0';
2739		/* make sure the root doesn't have a trailing " */
2740		printf("root=%s\n", s);
2741		}
2742
2743		line =
2744		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2745		entry->lines);
2746
2747		if (line && line->numElements >= 2) {
2748		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2749		printf("initrd=");
2750		else
2751		printf("initrd=%s", prefix);
2752
2753		for (i = 1; i < line->numElements; i++)
2754		printf("%s%s", line->elements[i].item,
2755		line->elements[i].indent);
2756		printf("\n");
2757		}
2758
2759		line = getLineByType(LT_TITLE, entry->lines);
2760	if (line) {	if (line) {
2761	char * s;	printf("title=%s\n", line->elements[1].item);
2762		} else {
2763		char *title;
2764		line = getLineByType(LT_MENUENTRY, entry->lines);
2765		if (line) {
2766		title = grub2ExtractTitle(line);
2767		if (title)
2768		printf("title=%s\n", title);
2769		}
2770		}
2771
2772		for (j = 0, line = entry->lines; line; line = line->next) {
2773		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2774		if (!strncmp
2775		(prefix, line->elements[1].item, strlen(prefix)))
2776		printf("mbmodule%d=", j);
2777		else
2778		printf("mbmodule%d=%s", j, prefix);
2779
2780		for (i = 1; i < line->numElements; i++)
2781		printf("%s%s", line->elements[i].item,
2782		line->elements[i].indent);
2783		printf("\n");
2784		j++;
2785		}
2786		}
2787		}
2788
2789		int isSuseSystem(void)
2790		{
2791		const char *path;
2792		const static char default_path[] = "/etc/SuSE-release";
2793
2794		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2795		path = default_path;
2796
2797		if (!access(path, R_OK))
2798		return 1;
2799		return 0;
2800		}
2801
2802		int isSuseGrubConf(const char *path)
2803		{
2804		FILE *grubConf;
2805		char *line = NULL;
2806		size_t len = 0, res = 0;
2807
2808		grubConf = fopen(path, "r");
2809		if (!grubConf) {
2810		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2811		path);
2812		return 0;
2813		}
2814
2815		while ((res = getline(&line, &len, grubConf)) != -1) {
2816		if (!strncmp(line, "setup", 5)) {
2817		fclose(grubConf);
2818		free(line);
2819		return 1;
2820		}
2821		}
2822
2823	printf("args=\"");	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2824	i = 1;	path);
2825	while (i < line->numElements) {
2826	if (!strncmp(line->elements[i].item, "root=", 5)) {	fclose(grubConf);
2827	root = line->elements[i].item + 5;	free(line);
2828		return 0;
2829		}
2830
2831		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2832		{
2833		FILE *grubConf;
2834		char *line = NULL;
2835		size_t res = 0, len = 0;
2836
2837		if (!path)
2838		return 1;
2839		if (!lbaPtr)
2840		return 1;
2841
2842		grubConf = fopen(path, "r");
2843		if (!grubConf)
2844		return 1;
2845
2846		while ((res = getline(&line, &len, grubConf)) != -1) {
2847		if (line[res - 1] == '\n')
2848		line[res - 1] = '\0';
2849		else if (len > res)
2850		line[res] = '\0';
2851		else {
2852		line = realloc(line, res + 1);
2853		line[res] = '\0';
2854		}
2855
2856		if (!strncmp(line, "setup", 5)) {
2857		if (strstr(line, "--force-lba")) {
2858		*lbaPtr = 1;
2859		} else {
2860		*lbaPtr = 0;
2861		}
2862		dbgPrintf("lba: %i\n", *lbaPtr);
2863		break;
2864		}
2865		}
2866
2867		free(line);
2868		fclose(grubConf);
2869		return 0;
2870		}
2871
2872		int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2873		{
2874		FILE *grubConf;
2875		char *line = NULL;
2876		size_t res = 0, len = 0;
2877		char *lastParamPtr = NULL;
2878		char *secLastParamPtr = NULL;
2879		char installDeviceNumber = '\0';
2880		char *bounds = NULL;
2881
2882		if (!path)
2883		return 1;
2884		if (!devicePtr)
2885		return 1;
2886
2887		grubConf = fopen(path, "r");
2888		if (!grubConf)
2889		return 1;
2890
2891		while ((res = getline(&line, &len, grubConf)) != -1) {
2892		if (strncmp(line, "setup", 5))
2893		continue;
2894
2895		if (line[res - 1] == '\n')
2896		line[res - 1] = '\0';
2897		else if (len > res)
2898		line[res] = '\0';
2899		else {
2900		line = realloc(line, res + 1);
2901		line[res] = '\0';
2902		}
2903
2904		lastParamPtr = bounds = line + res;
2905
2906		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2907		while (!isspace(*lastParamPtr))
2908		lastParamPtr--;
2909		lastParamPtr++;
2910
2911		secLastParamPtr = lastParamPtr - 2;
2912		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2913
2914		if (lastParamPtr + 3 > bounds) {
2915		dbgPrintf("lastParamPtr going over boundary");
2916		fclose(grubConf);
2917		free(line);
2918		return 1;
2919		}
2920		if (!strncmp(lastParamPtr, "(hd", 3))
2921		lastParamPtr += 3;
2922		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2923
2924		/*
2925		* Second last parameter will decide wether last parameter is
2926		* an IMAGE_DEVICE or INSTALL_DEVICE
2927		*/
2928		while (!isspace(*secLastParamPtr))
2929		secLastParamPtr--;
2930		secLastParamPtr++;
2931
2932		if (secLastParamPtr + 3 > bounds) {
2933		dbgPrintf("secLastParamPtr going over boundary");
2934		fclose(grubConf);
2935		free(line);
2936		return 1;
2937		}
2938		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2939		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2940		secLastParamPtr += 3;
2941		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2942		installDeviceNumber = *secLastParamPtr;
2943	} else {	} else {
2944	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
2945		}
2946
2947	printf("%s%s", s, line->elements[i].indent);	*devicePtr = malloc(6);
2948		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2949		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2950		fclose(grubConf);
2951		free(line);
2952		return 0;
2953		}
2954
2955		free(line);
2956		fclose(grubConf);
2957		return 1;
2958		}
2959
2960		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2961		{
2962		FILE *deviceMap;
2963		char *line = NULL;
2964		size_t res = 0, len = 0;
2965		char *devicePtr;
2966		char *bounds = NULL;
2967		const char *path;
2968		const static char default_path[] = "/boot/grub/device.map";
2969
2970		if (!device)
2971		return 1;
2972		if (!bootPtr)
2973		return 1;
2974
2975		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2976		path = default_path;
2977
2978		dbgPrintf("opening grub device.map file from: %s\n", path);
2979		deviceMap = fopen(path, "r");
2980		if (!deviceMap)
2981		return 1;
2982
2983		while ((res = getline(&line, &len, deviceMap)) != -1) {
2984		if (!strncmp(line, "#", 1))
2985		continue;
2986
2987		if (line[res - 1] == '\n')
2988		line[res - 1] = '\0';
2989		else if (len > res)
2990		line[res] = '\0';
2991		else {
2992		line = realloc(line, res + 1);
2993		line[res] = '\0';
2994	}	}
2995
2996	i++;	devicePtr = line;
2997	}	bounds = line + res;
2998
2999		while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3000		devicePtr++;
3001		dbgPrintf("device: %s\n", devicePtr);
3002
3003		if (!strncmp(devicePtr, device, strlen(device))) {
3004		devicePtr += strlen(device);
3005		while (isspace(*devicePtr)
3006		&& ((devicePtr + 1) <= bounds))
3007		devicePtr++;
3008
3009	s = line->elements[i - 1].indent;	*bootPtr = strdup(devicePtr);
3010	printf("\"\n");	break;
3011		}
3012	}	}
	}
3013
3014	if (!root) {	free(line);
3015	line = entry->lines;	fclose(deviceMap);
3016	while (line && line->type != LT_ROOT) line = line->next;	return 0;
3017		}
3018
3019	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3020	root=line->elements[1].item;	{
3021	}	char *grubDevice;
3022
3023	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3024	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
3025		else
3026	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);
	}
3027
3028	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3029	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
3030		else
3031		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3032
3033	if (line && line->numElements >= 2) {	free(grubDevice);
3034	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");
	}
3035	}	}
3036
3037	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3038	FILE * in;	{
3039	char buf[1024];	/*
3040	char * chptr;	* This SuSE grub configuration file at this location is not your
3041	char * start;	* average grub configuration file, but instead the grub commands
3042	char * param;	* used to setup grub on that system.
3043		*/
3044	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
3045	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);
	}
3046
3047	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3048		path = default_path;
3049
3050	return 0;	if (!isSuseGrubConf(path))
3051		return 1;
3052
3053		if (lbaPtr) {
3054		*lbaPtr = 0;
3055		if (suseGrubConfGetLba(path, lbaPtr))
3056		return 1;
3057		}
3058
3059		if (bootPtr) {
3060		*bootPtr = NULL;
3061		suseGrubConfGetBoot(path, bootPtr);
3062		}
3063
3064		return 0;
3065	}	}
3066
3067	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3068	char * boot;	{
3069	int lba;	FILE *in;
3070		char buf[1024];
3071	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
3072	if (lba) printf("lba\n");	char *start;
3073	if (boot) printf("boot=%s\n", boot);	char *param;
3074	}
3075		in = fopen("/etc/sysconfig/grub", "r");
3076		if (!in)
3077		return 1;
3078
3079		if (lbaPtr)
3080		*lbaPtr = 0;
3081		if (bootPtr)
3082		*bootPtr = NULL;
3083
3084		while (fgets(buf, sizeof(buf), in)) {
3085		start = buf;
3086		while (isspace(*start))
3087		start++;
3088		if (*start == '#')
3089		continue;
3090
3091		chptr = strchr(start, '=');
3092		if (!chptr)
3093		continue;
3094		chptr--;
3095		while (*chptr && isspace(*chptr))
3096		chptr--;
3097		chptr++;
3098		*chptr = '\0';
3099
3100		param = chptr + 1;
3101		while (*param && isspace(*param))
3102		param++;
3103		if (*param == '=') {
3104		param++;
3105		while (*param && isspace(*param))
3106		param++;
3107		}
3108
3109		chptr = param;
3110		while (*chptr && !isspace(*chptr))
3111		chptr++;
3112		*chptr = '\0';
3113
3114		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3115		*lbaPtr = 1;
3116		else if (!strcmp(start, "boot") && bootPtr)
3117		*bootPtr = strdup(param);
3118		}
3119
3120		fclose(in);
3121
3122		return 0;
3123	}	}
3124
3125	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3126	const char * prefix) {	{
3127	int i = 0;	char *boot = NULL;
3128	struct singleEntry * entry;	int lba;
3129	struct singleLine * line;
3130		if (isSuseSystem()) {
3131	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3132	if (!entry) {	free(boot);
3133	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3134	return 1;	}
3135	}	} else {
3136		if (parseSysconfigGrub(&lba, &boot)) {
3137		free(boot);
3138		return;
3139		}
3140		}
3141
3142	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3143	be a better way */	printf("lba\n");
3144	if (config->cfi == &grubConfigType) {	if (boot) {
3145	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3146	} 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);
3147	}	}
3148		}
3149
3150	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3151	while (line && line->type != LT_LBA) line = line->next;	{
3152	if (line) printf("lba\n");	int i = 0;
3153	}	struct singleEntry *entry;
3154		struct singleLine *line;
3155
3156		entry = findEntryByPath(config, kernel, prefix, &i);
3157		if (!entry) {
3158		fprintf(stderr, _("grubby: kernel not found\n"));
3159		return 1;
3160		}
3161
3162	displayEntry(entry, prefix, i);	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3163		be a better way */
3164		if (config->cfi == &grubConfigType) {
3165		dumpSysconfigGrub();
3166		} else {
3167		line = getLineByType(LT_BOOT, config->theLines);
3168		if (line && line->numElements >= 1) {
3169		printf("boot=%s\n", line->elements[1].item);
3170		}
3171
3172		line = getLineByType(LT_LBA, config->theLines);
3173		if (line)
3174		printf("lba\n");
3175		}
3176
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3177	displayEntry(entry, prefix, i);	displayEntry(entry, prefix, i);
3178
3179	i++;	i++;
3180	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3181		displayEntry(entry, prefix, i);
3182		i++;
3183		}
3184
3185	return 0;	return 0;
3186		}
3187
3188		struct singleLine *addLineTmpl(struct singleEntry *entry,
3189		struct singleLine *tmplLine,
3190		struct singleLine *prevLine,
3191		const char *val, struct configFileInfo *cfi)
3192		{
3193		struct singleLine *newLine = lineDup(tmplLine);
3194
3195		if (isEfi && cfi == &grub2ConfigType) {
3196		enum lineType_e old = newLine->type;
3197		newLine->type = preferredLineType(newLine->type, cfi);
3198		if (old != newLine->type)
3199		newLine->elements[0].item =
3200		getKeyByType(newLine->type, cfi);
3201		}
3202
3203		if (val) {
3204		/* override the inherited value with our own.
3205		* This is a little weak because it only applies to elements[1]
3206		*/
3207		if (newLine->numElements > 1)
3208		removeElement(newLine, 1);
3209		insertElement(newLine, val, 1, cfi);
3210
3211		/* but try to keep the rootspec from the template... sigh */
3212		if (tmplLine->
3213		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3214		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3215		LT_INITRD_16)) {
3216		char *rootspec =
3217		getRootSpecifier(tmplLine->elements[1].item);
3218		if (rootspec != NULL) {
3219		free(newLine->elements[1].item);
3220		newLine->elements[1].item =
3221		sdupprintf("%s%s", rootspec, val);
3222		}
3223		}
3224		}
3225
3226		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3227		newLine->elements[0].item : "");
3228
3229		if (!entry->lines) {
3230		/* first one on the list */
3231		entry->lines = newLine;
3232		} else if (prevLine) {
3233		/* add after prevLine */
3234		newLine->next = prevLine->next;
3235		prevLine->next = newLine;
3236		}
3237
3238		return newLine;
3239	}	}
3240
3241	/* val may be NULL */	/* val may be NULL */
3242	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3243	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3244	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3245	char * val) {	const char *val)
3246	struct singleLine * line, * prev;	{
3247	int i;	struct singleLine *line, *prev;
3248		struct keywordTypes *kw;
3249	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3250	if (cfi->keywords[i].type == type) break;
3251	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3252	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3253		*/
3254	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3255	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3256	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3257	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3258	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3259	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3260	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3261	prev = NULL;	tmpl.elements[0].indent = "";
3262	while (line) {	val = NULL;
3263	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3264	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3265		if (!val) {
3266		fprintf(stderr,
3267		"Line type LT_MENUENTRY requires a value\n");
3268		abort();
3269		}
3270		kw = getKeywordByType(type, cfi);
3271		if (!kw) {
3272		fprintf(stderr,
3273		"Looking up keyword for unknown type %d\n",
3274		type);
3275		abort();
3276		}
3277		tmpl.indent = "";
3278		tmpl.type = type;
3279		tmpl.numElements = 3;
3280		tmpl.elements =
3281		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3282		tmpl.elements[0].item = kw->key;
3283		tmpl.elements[0].indent = alloca(2);
3284		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3285		tmpl.elements[1].item = (char *)val;
3286		tmpl.elements[1].indent = alloca(2);
3287		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3288		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3289		strcpy(tmpl.elements[2].item, lineend);
3290		tmpl.elements[2].indent = "";
3291		} else {
3292		kw = getKeywordByType(type, cfi);
3293		if (!kw) {
3294		fprintf(stderr,
3295		"Looking up keyword for unknown type %d\n",
3296		type);
3297		abort();
3298		}
3299		tmpl.type = type;
3300		tmpl.numElements = val ? 2 : 1;
3301		tmpl.elements =
3302		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3303		tmpl.elements[0].item = kw->key;
3304		tmpl.elements[0].indent = alloca(2);
3305		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3306		if (val) {
3307		tmpl.elements[1].item = (char *)val;
3308		tmpl.elements[1].indent = "";
3309		}
3310	}	}
	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;
3311
3312	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3313	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3314	else	* which may not be ideal? If there are no lines or we are looking at
3315	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3316	} else {	* indented differently from the rest) */
3317	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3318	line->indent = strdup(defaultIndent);	if (line->numElements)
3319	line->next = NULL;	prev = line;
3320	}	/* fall back on the last line if prev isn't otherwise set */
3321		if (!line->next && !prev)
3322		prev = line;
3323		}
3324
3325		struct singleLine *menuEntry;
3326		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3327		if (tmpl.type == LT_ENTRY_END) {
3328		if (menuEntry)
3329		tmpl.indent = menuEntry->indent;
3330		else
3331		tmpl.indent = defaultIndent ? : "";
3332		} else if (tmpl.type != LT_MENUENTRY) {
3333		if (menuEntry)
3334		tmpl.indent = "\t";
3335		else if (prev == entry->lines)
3336		tmpl.indent = defaultIndent ? : "";
3337		else
3338		tmpl.indent = prev->indent;
3339		}
3340
3341	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3342	line->type = type;	}
3343	line->numElements = val ? 2 : 1;
3344	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3345	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3346	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3347	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
3348	line->elements[0].indent[1] = '\0';
3349		for (i = 0; i < line->numElements; i++) {
3350	if (val) {	free(line->elements[i].item);
3351	line->elements[1].item = val;	free(line->elements[i].indent);
3352	line->elements[1].indent = strdup("");	}
3353	}	free(line->elements);
3354	} else {	free(line->indent);
3355	/* we're doing the title of a bracketed title (zipl) */
3356	line->type = type;	if (line == entry->lines) {
3357	line->numElements = 1;	entry->lines = line->next;
3358	line->elements = malloc(sizeof(*line->elements) * line->numElements);	} else {
3359		prev = entry->lines;
3360	line->elements[0].item = malloc(strlen(val) + 3);	while (prev->next != line)
3361	sprintf(line->elements[0].item, "[%s]", val);	prev = prev->next;
3362	line->elements[0].indent = strdup("");	prev->next = line->next;
3363	}	}
3364
3365	return line;	free(line);
3366	}	}
3367
3368	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3369	struct singleLine * prev;	{
3370	int i;	struct singleLine newLine = {
3371		.indent = tmplLine->indent,
3372		.type = tmplLine->type,
3373		.next = tmplLine->next,
3374		};
3375		int firstQuotedItem = -1;
3376		int quoteLen = 0;
3377		int j;
3378		int element = 0;
3379		char *c;
3380
3381		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3382		strcpy(c, tmplLine->elements[0].item);
3383		insertElement(&newLine, c, element++, cfi);
3384		free(c);
3385		c = NULL;
3386
3387		for (j = 1; j < tmplLine->numElements; j++) {
3388		if (firstQuotedItem == -1) {
3389		quoteLen += strlen(tmplLine->elements[j].item);
3390
3391		if (isquote(tmplLine->elements[j].item[0])) {
3392		firstQuotedItem = j;
3393		quoteLen +=
3394		strlen(tmplLine->elements[j].indent);
3395		} else {
3396		c = malloc(quoteLen + 1);
3397		strcpy(c, tmplLine->elements[j].item);
3398		insertElement(&newLine, c, element++, cfi);
3399		free(c);
3400		quoteLen = 0;
3401		}
3402		} else {
3403		int itemlen = strlen(tmplLine->elements[j].item);
3404		quoteLen += itemlen;
3405		quoteLen += strlen(tmplLine->elements[j].indent);
3406
3407		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3408		c = malloc(quoteLen + 1);
3409		c[0] = '\0';
3410		for (int i = firstQuotedItem; i < j + 1; i++) {
3411		strcat(c, tmplLine->elements[i].item);
3412		strcat(c, tmplLine->elements[i].indent);
3413		}
3414		insertElement(&newLine, c, element++, cfi);
3415		free(c);
3416
3417		firstQuotedItem = -1;
3418		quoteLen = 0;
3419		}
3420		}
3421		}
3422		while (tmplLine->numElements)
3423		removeElement(tmplLine, 0);
3424		if (tmplLine->elements)
3425		free(tmplLine->elements);
3426
3427	for (i = 0; i < line->numElements; i++) {	tmplLine->numElements = newLine.numElements;
3428	free(line->elements[i].item);	tmplLine->elements = newLine.elements;
3429	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
3430
3431	if (line == entry->lines) {	static void insertElement(struct singleLine *line,
3432	entry->lines = line->next;	const char *item, int insertHere,
3433	} else {	struct configFileInfo *cfi)
3434	prev = entry->lines;	{
3435	while (prev->next != line) prev = prev->next;	struct keywordTypes *kw;
3436	prev->next = line->next;	char indent[2] = "";
3437	}
3438		/* sanity check */
3439		if (insertHere > line->numElements) {
3440		dbgPrintf
3441		("insertElement() adjusting insertHere from %d to %d\n",
3442		insertHere, line->numElements);
3443		insertHere = line->numElements;
3444		}
3445
3446		line->elements = realloc(line->elements, (line->numElements + 1) *
3447		sizeof(*line->elements));
3448		memmove(&line->elements[insertHere + 1],
3449		&line->elements[insertHere],
3450		(line->numElements - insertHere) * sizeof(*line->elements));
3451		line->elements[insertHere].item = strdup(item);
3452
3453		kw = getKeywordByType(line->type, cfi);
3454
3455		if (line->numElements == 0) {
3456		indent[0] = '\0';
3457		} else if (insertHere == 0) {
3458		indent[0] = kw->nextChar;
3459		} else if (kw->separatorChar != '\0') {
3460		indent[0] = kw->separatorChar;
3461		} else {
3462		indent[0] = ' ';
3463		}
3464
3465		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3466		/* move the end-of-line forward */
3467		line->elements[insertHere].indent =
3468		line->elements[insertHere - 1].indent;
3469		line->elements[insertHere - 1].indent = strdup(indent);
3470		} else {
3471		line->elements[insertHere].indent = strdup(indent);
3472		}
3473
3474		line->numElements++;
3475
3476	free(line);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3477		line->elements[0].item,
3478		line->elements[insertHere].item,
3479		line->elements[insertHere].indent, insertHere);
3480	}	}
3481
3482	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3483	char * first, * second;	{
3484	char * chptr;	int i;
3485
3486	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3487	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3488		return;
3489	chptr = strchr(first, '=');
3490	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3491		removeHere, line->elements[removeHere].item);
3492	chptr = strchr(second, '=');
3493	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3494
3495	return strcmp(first, second);	if (removeHere > 1) {
3496	}	/* previous argument gets this argument's post-indentation */
3497		free(line->elements[removeHere - 1].indent);
3498	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3499	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3500	const char * removeArgs, int multibootArgs) {	} else {
3501	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;
3502	}	}
	}
3503
3504	if (!removeArgs) {	/* now collapse the array, but don't bother to realloc smaller */
3505	oldArgs = malloc(sizeof(*oldArgs));	for (i = removeHere; i < line->numElements - 1; i++)
3506	*oldArgs = NULL;	line->elements[i] = line->elements[i + 1];
3507	} else {
3508	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	line->numElements--;
3509	fprintf(stderr,	}
3510	_("grubby: error separating arguments '%s'\n"), removeArgs);
3511	free(newArgs);	int argMatch(const char *one, const char *two)
3512	return 1;	{
3513		char *first, *second;
3514		char *chptr;
3515
3516		first = strcpy(alloca(strlen(one) + 1), one);
3517		second = strcpy(alloca(strlen(two) + 1), two);
3518
3519		chptr = strchr(first, '=');
3520		if (chptr)
3521		*chptr = '\0';
3522
3523		chptr = strchr(second, '=');
3524		if (chptr)
3525		*chptr = '\0';
3526
3527		return strcmp(first, second);
3528		}
3529
3530		int updateActualImage(struct grubConfig *cfg, const char *image,
3531		const char *prefix, const char *addArgs,
3532		const char *removeArgs, int multibootArgs)
3533		{
3534		struct singleEntry *entry;
3535		struct singleLine *line, *rootLine;
3536		int index = 0;
3537		int i, k;
3538		const char **newArgs, **oldArgs;
3539		const char **arg;
3540		int useKernelArgs, useRoot;
3541		int firstElement;
3542		int *usedElements;
3543		int doreplace;
3544
3545		if (!image)
3546		return 0;
3547
3548		if (!addArgs) {
3549		newArgs = malloc(sizeof(*newArgs));
3550		*newArgs = NULL;
3551		} else {
3552		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3553		fprintf(stderr,
3554		_("grubby: error separating arguments '%s'\n"),
3555		addArgs);
3556		return 1;
3557		}
3558	}	}
	}
3559
3560	for (i = 0; cfg->cfi->keywords[i].key; i++)	if (!removeArgs) {
3561	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	oldArgs = malloc(sizeof(*oldArgs));
3562		*oldArgs = NULL;
3563		} else {
3564		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3565		fprintf(stderr,
3566		_("grubby: error separating arguments '%s'\n"),
3567		removeArgs);
3568		free(newArgs);
3569		return 1;
3570		}
3571		}
3572
3573	if (cfg->cfi->keywords[i].key)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3574	useKernelArgs = 1;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3575
3576	for (i = 0; cfg->cfi->keywords[i].key; i++)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3577	if (cfg->cfi->keywords[i].type == LT_ROOT) break;	&& !multibootArgs);
3578
3579	if (cfg->cfi->keywords[i].key)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3580	useRoot = 1;
3581		if (multibootArgs && !entry->multiboot)
3582	k = 0;	continue;
3583	for (arg = newArgs; *arg; arg++)
3584	k++;	/* Determine where to put the args.  If this config supports
3585	usedArgs = calloc(k, sizeof(int));	* LT_KERNELARGS, use that.  Otherwise use
3586		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3587	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	*/
3588	index++;	if (useKernelArgs) {
3589		line = getLineByType(LT_KERNELARGS, entry->lines);
3590	line = entry->lines;	if (!line) {
3591	while (line && line->type != LT_KERNEL) line = line->next;	/* no LT_KERNELARGS, need to add it */
3592	if (!line) continue;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3593	firstElement = 2;	cfg->secondaryIndent, NULL);
3594		}
3595	if (entry->multiboot && !multibootArgs) {	firstElement = 1;
3596	/* first mb module line is the real kernel */
3597	while (line && line->type != LT_MBMODULE) line = line->next;	} else if (multibootArgs) {
3598	firstElement = 2;	line = getLineByType(LT_HYPER, entry->lines);
3599	} else if (useKernelArgs) {	if (!line) {
3600	while (line && line->type != LT_KERNELARGS) line = line->next;	/* a multiboot entry without LT_HYPER? */
3601	firstElement = 1;	continue;
3602	}	}
3603		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, '=');
3604
	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(" ");
3605	} else {	} else {
3606	/* First thing on this line; treat a bit differently. Note	line =
3607	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3608	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3609	line->elements[line->numElements].indent = strdup("");	entry->lines);
3610		if (!line) {
3611		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3612		continue;
3613		}
3614		firstElement = 2;
3615	}	}
3616
3617	line->numElements++;	/* handle the elilo case which does:
3618		*   append="hypervisor args -- kernel args"
3619		*/
3620		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3621		/* this is a multiboot entry, make sure there's
3622		* -- on the args line
3623		*/
3624		for (i = firstElement; i < line->numElements; i++) {
3625		if (!strcmp(line->elements[i].item, "--"))
3626		break;
3627		}
3628		if (i == line->numElements) {
3629		/* assume all existing args are kernel args,
3630		* prepend -- to make it official
3631		*/
3632		insertElement(line, "--", firstElement,
3633		cfg->cfi);
3634		i = firstElement;
3635		}
3636		if (!multibootArgs) {
3637		/* kernel args start after the -- */
3638		firstElement = i + 1;
3639		}
3640		} else if (cfg->cfi->mbConcatArgs) {
3641		/* this is a non-multiboot entry, remove hyper args */
3642		for (i = firstElement; i < line->numElements; i++) {
3643		if (!strcmp(line->elements[i].item, "--"))
3644		break;
3645		}
3646		if (i < line->numElements) {
3647		/* remove args up to -- */
3648		while (strcmp
3649		(line->elements[firstElement].item,
3650		"--"))
3651		removeElement(line, firstElement);
3652		/* remove -- */
3653		removeElement(line, firstElement);
3654		}
3655		}
3656
3657		usedElements = calloc(line->numElements, sizeof(*usedElements));
3658
3659	/* if we updated a root= here even though there is a	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3660	LT_ROOT available we need to remove the LT_ROOT entry
3661	(this will happen if we switch from a device to a label) */	doreplace = 1;
3662	if (useRoot && !strncmp(*arg, "root=", 5)) {	for (i = firstElement; i < line->numElements; i++) {
3663	rootLine = entry->lines;	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3664	while (rootLine && rootLine->type != LT_ROOT)	!strcmp(line->elements[i].item, "--")) {
3665	rootLine = rootLine->next;	/* reached the end of hyper args, insert here */
3666	if (rootLine) {	doreplace = 0;
3667	removeLine(entry, rootLine);	break;
3668	}	}
3669	}	if (usedElements[i])
3670	}	continue;
3671	k++;	if (!argMatch(line->elements[i].item, *arg)) {
3672	}	usedElements[i] = 1;
3673		break;
3674	free(usedElements);	}
3675		}
3676	/* no arguments to remove (i.e. no append line) */
3677	if (!line) continue;	if (i < line->numElements && doreplace) {
3678		/* direct replacement */
3679	/* this won't remove an LT_ROOT item properly (but then again,	free(line->elements[i].item);
3680	who cares? */	line->elements[i].item = strdup(*arg);
3681	for (arg = oldArgs; *arg; arg++) {
3682	for (i = firstElement; i < line->numElements; i++)	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3683	if (!argMatch(line->elements[i].item, *arg))	/* root= replacement */
3684	break;	rootLine = getLineByType(LT_ROOT, entry->lines);
3685		if (rootLine) {
3686	if (i < line->numElements) {	free(rootLine->elements[1].item);
3687	/* if this isn't the first argument the previous argument	rootLine->elements[1].item =
3688	gets this arguments post-indention */	strdup(*arg + 5);
3689	if (i > firstElement) {	} else {
3690	free(line->elements[i - 1].indent);	rootLine =
3691	line->elements[i - 1].indent = line->elements[i].indent;	addLine(entry, cfg->cfi, LT_ROOT,
3692		cfg->secondaryIndent,
3693		*arg + 5);
3694		}
3695		}
3696
3697		else {
3698		/* insert/append */
3699		insertElement(line, *arg, i, cfg->cfi);
3700		usedElements =
3701		realloc(usedElements,
3702		line->numElements *
3703		sizeof(*usedElements));
3704		memmove(&usedElements[i + 1], &usedElements[i],
3705		line->numElements - i - 1);
3706		usedElements[i] = 1;
3707
3708		/* if we updated a root= here even though
3709		* there is a LT_ROOT available we need to
3710		* remove the LT_ROOT entry (this will happen
3711		* if we switch from a device to a label) */
3712		if (useRoot && !strncmp(*arg, "root=", 5)) {
3713		rootLine =
3714		getLineByType(LT_ROOT,
3715		entry->lines);
3716		if (rootLine)
3717		removeLine(entry, rootLine);
3718		}
3719		}
3720	}	}
	free(line->elements[i].item);
3721
3722	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3723
3724	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3725	}	for (i = firstElement; i < line->numElements; i++) {
3726	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3727		!strcmp(line->elements[i].item, "--"))
3728		/* reached the end of hyper args, stop here */
3729		break;
3730		if (!argMatch(line->elements[i].item, *arg)) {
3731		removeElement(line, i);
3732		break;
3733		}
3734		}
3735		/* handle removing LT_ROOT line too */
3736		if (useRoot && !strncmp(*arg, "root=", 5)) {
3737		rootLine = getLineByType(LT_ROOT, entry->lines);
3738		if (rootLine)
3739		removeLine(entry, rootLine);
3740		}
3741		}
3742
3743	if (line->numElements == 1) {	if (line->numElements == 1) {
3744	/* 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
3745	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3746	removeLine(entry, line);	removeLine(entry, line);
3747		}
3748	}	}
	}
3749
3750	free(usedArgs);	free(newArgs);
3751	free(newArgs);	free(oldArgs);
	free(oldArgs);
3752
3753	return 0;	return 0;
3754	}	}
3755
3756	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3757	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3758	const char * removeArgs,	const char *removeArgs,
3759	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3760	int rc = 0;	{
3761		int rc = 0;
3762	if (!image) return rc;
3763		if (!image)
3764	/* update the main args first... */	return rc;
3765	if (addArgs || removeArgs)
3766	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3767	if (rc) return rc;	if (addArgs || removeArgs)
3768		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3769	/* and now any multiboot args */	0);
3770	if (addMBArgs || removeMBArgs)	if (rc)
3771	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3772	return rc;
3773	}	/* and now any multiboot args */
3774		if (addMBArgs || removeMBArgs)
3775	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3776	int fd;	removeMBArgs, 1);
3777	unsigned char bootSect[512];	return rc;
3778	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3779
3780	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3781	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3782	device, strerror(errno));	const char *title)
3783	return 1;	{
3784	}	struct singleEntry *entry;
3785	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3786		int index = 0;
3787
3788		if (!image)
3789		return 0;
3790
3791		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3792		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3793		if (!kernelLine)
3794		continue;
3795
3796		/* if title is supplied, the entry's title must match it. */
3797		if (title) {
3798		char *linetitle;
3799
3800		line =
3801		getLineByType(LT_TITLE | LT_MENUENTRY,
3802		entry->lines);
3803		if (!line)
3804		continue;
3805
3806		linetitle = extractTitle(cfg, line);
3807		if (!linetitle)
3808		continue;
3809		if (strcmp(title, linetitle)) {
3810		free(linetitle);
3811		continue;
3812		}
3813		free(linetitle);
3814		}
3815
3816	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3817	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3818	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3819		initrd += prefixLen;
3820		}
3821		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3822		if (endLine)
3823		removeLine(entry, endLine);
3824		line =
3825		addLine(entry, cfg->cfi,
3826		preferredLineType(LT_MBMODULE, cfg->cfi),
3827		kernelLine->indent, initrd);
3828		if (!line)
3829		return 1;
3830		if (endLine) {
3831		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3832		if (!line)
3833		return 1;
3834		}
3835
3836	if (boot[1] == 0xeb) {	break;
3837	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;
	}
3838
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3839	return 0;	return 0;
3840		}
3841
3842		int updateInitrd(struct grubConfig *cfg, const char *image,
3843		const char *prefix, const char *initrd, const char *title)
3844		{
3845		struct singleEntry *entry;
3846		struct singleLine *line, *kernelLine, *endLine = NULL;
3847		int index = 0;
3848
3849		if (!image)
3850		return 0;
3851
3852		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3853		kernelLine =
3854		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3855		entry->lines);
3856		if (!kernelLine)
3857		continue;
3858
3859		/* if title is supplied, the entry's title must match it. */
3860		if (title) {
3861		char *linetitle;
3862
3863		line =
3864		getLineByType(LT_TITLE | LT_MENUENTRY,
3865		entry->lines);
3866		if (!line)
3867		continue;
3868
3869		linetitle = extractTitle(cfg, line);
3870		if (!linetitle)
3871		continue;
3872		if (strcmp(title, linetitle)) {
3873		free(linetitle);
3874		continue;
3875		}
3876		free(linetitle);
3877		}
3878
3879		line =
3880		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3881		entry->lines);
3882		if (line)
3883		removeLine(entry, line);
3884		if (prefix) {
3885		int prefixLen = strlen(prefix);
3886		if (!strncmp(initrd, prefix, prefixLen))
3887		initrd += prefixLen;
3888		}
3889		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3890		if (endLine)
3891		removeLine(entry, endLine);
3892		enum lineType_e lt;
3893		switch (kernelLine->type) {
3894		case LT_KERNEL:
3895		lt = LT_INITRD;
3896		break;
3897		case LT_KERNEL_EFI:
3898		lt = LT_INITRD_EFI;
3899		break;
3900		case LT_KERNEL_16:
3901		lt = LT_INITRD_16;
3902		break;
3903		default:
3904		lt = preferredLineType(LT_INITRD, cfg->cfi);
3905		}
3906		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3907		if (!line)
3908		return 1;
3909		if (endLine) {
3910		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3911		if (!line)
3912		return 1;
3913		}
3914
3915		break;
3916		}
3917
3918	return 2;	return 0;
3919	}	}
3920
3921	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3922	int fd;	{
3923	char buf[65536];	int fd;
3924	char * end;	unsigned char bootSect[512];
3925	char * chptr;	int offset;
3926	char * chptr2;
3927	int rc;	fd = open(device, O_RDONLY);
3928		if (fd < 0) {
3929		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3930		device, strerror(errno));
3931		return 1;
3932		}
3933
3934	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (read(fd, bootSect, 512) != 512) {
3935	*raw* devices listed in there */	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3936		device, strerror(errno));
3937		return 1;
3938		}
3939		close(fd);
3940
3941		/* first three bytes should match, a jmp short should be in there */
3942		if (memcmp(boot, bootSect, 3))
3943		return 0;
3944
3945		if (boot[1] == JMP_SHORT_OPCODE) {
3946		offset = boot[2] + 2;
3947		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3948		offset = (boot[3] << 8) + boot[2] + 2;
3949		} else if (boot[0] == JMP_SHORT_OPCODE) {
3950		offset = boot[1] + 2;
3951		/*
3952		* it looks like grub, when copying stage1 into the mbr,
3953		* patches stage1 right after the JMP location, replacing
3954		* other instructions such as JMPs for NOOPs. So, relax the
3955		* check a little bit by skipping those different bytes.
3956		*/
3957		if ((bootSect[offset + 1] == NOOP_OPCODE)
3958		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3959		offset = offset + 3;
3960		}
3961		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3962		offset = (boot[2] << 8) + boot[1] + 2;
3963		} else {
3964		return 0;
3965		}
3966
3967	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3968	mdDev += 5;	return 0;
3969
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
3970	return 2;	return 2;
3971	}	}
3972
3973	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3974	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3975	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
3976	strerror(errno));	char buf[65536];
3977		char *end;
3978		char *chptr;
3979		char *chptr2;
3980		int rc;
3981
3982		/* it's on raid; we need to parse /proc/mdstat and check all of the
3983		*raw* devices listed in there */
3984
3985		if (!strncmp(mdDev, "/dev/", 5))
3986		mdDev += 5;
3987
3988		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3989		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3990		strerror(errno));
3991		return 2;
3992		}
3993
3994		rc = read(fd, buf, sizeof(buf) - 1);
3995		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3996		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3997		strerror(errno));
3998		close(fd);
3999		return 2;
4000		}
4001	close(fd);	close(fd);
4002	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
4003
4004	chptr = buf;	chptr = buf;
4005	while (*chptr) {	while (*chptr) {
4006	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
4007	if (!end) break;	if (!end)
4008	*end = '\0';	break;
4009		*end = '\0';
4010
4011		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4012		chptr[strlen(mdDev)] == ' ') {
4013
4014		/* found the device */
4015		while (*chptr && *chptr != ':')
4016		chptr++;
4017		chptr++;
4018		while (*chptr && isspace(*chptr))
4019		chptr++;
4020
4021		/* skip the "active" bit */
4022		while (*chptr && !isspace(*chptr))
4023		chptr++;
4024		while (*chptr && isspace(*chptr))
4025		chptr++;
4026
4027		/* skip the raid level */
4028		while (*chptr && !isspace(*chptr))
4029		chptr++;
4030		while (*chptr && isspace(*chptr))
4031		chptr++;
4032
4033		/* everything else is partition stuff */
4034		while (*chptr) {
4035		chptr2 = chptr;
4036		while (*chptr2 && *chptr2 != '[')
4037		chptr2++;
4038		if (!*chptr2)
4039		break;
4040
4041		/* yank off the numbers at the end */
4042		chptr2--;
4043		while (isdigit(*chptr2) && chptr2 > chptr)
4044		chptr2--;
4045		chptr2++;
4046		*chptr2 = '\0';
4047
4048		/* Better, now we need the /dev/ back. We're
4049		* done with everything before this point, so
4050		* we can just put the /dev/ part there.
4051		* There will always be room. */
4052		memcpy(chptr - 5, "/dev/", 5);
4053		rc = checkDeviceBootloader(chptr - 5, boot);
4054		if (rc != 2) {
4055		return rc;
4056		}
4057
4058		chptr = chptr2 + 1;
4059		/* skip the [11] bit */
4060		while (*chptr && !isspace(*chptr))
4061		chptr++;
4062		/* and move to the next one */
4063		while (*chptr && isspace(*chptr))
4064		chptr++;
4065		}
4066
4067	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
4068	chptr[strlen(mdDev)] == ' ') {	return 2;
4069		}
4070
4071	/* found the device */	chptr = end + 1;
4072	while (*chptr && *chptr != ':') chptr++;	}
4073	chptr++;
4074	while (*chptr && isspace(*chptr)) chptr++;	fprintf(stderr,
4075		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4076	/* skip the "active" bit */	mdDev);
4077	while (*chptr && !isspace(*chptr)) chptr++;	return 0;
4078	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++;
	}
4079
4080	/*  we're good to go */	int checkForLilo(struct grubConfig *config)
4081	return 2;	{
4082		int fd;
4083		unsigned char boot[512];
4084		struct singleLine *line;
4085
4086		for (line = config->theLines; line; line = line->next)
4087		if (line->type == LT_BOOT)
4088		break;
4089
4090		if (!line) {
4091		fprintf(stderr,
4092		_
4093		("grubby: no boot line found in lilo configuration\n"));
4094		return 1;
4095	}	}
4096
4097	chptr = end + 1;	if (line->numElements != 2)
4098	}	return 1;
4099
4100	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4101	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4102	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4103	return 0;	"/boot/boot.b", strerror(errno));
4104	}	return 1;
4105		}
4106
4107	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4108	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4109	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4110	struct singleLine * line;	return 1;
4111		}
4112	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;
	}
4113
4114	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4115		return checkLiloOnRaid(line->elements[1].item, boot);
4116
4117	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4118	if (fd < 0) {	}
4119	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4120	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4121	return 1;	{
4122	}	if (!access("/etc/grub.d/", R_OK))
4123		return 2;
4124
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4125	return 1;	return 1;
4126	}	}
	close(fd);
4127
4128	if (!strncmp("/dev/md", line->elements[1].item, 7))	int checkForGrub(struct grubConfig *config)
4129	return checkLiloOnRaid(line->elements[1].item, boot);	{
4130		int fd;
4131		unsigned char bootSect[512];
4132		char *boot;
4133		int onSuse = isSuseSystem();
4134
4135		if (onSuse) {
4136		if (parseSuseGrubConf(NULL, &boot))
4137		return 0;
4138		} else {
4139		if (parseSysconfigGrub(NULL, &boot))
4140		return 0;
4141		}
4142
4143		/* assume grub is not installed -- not an error condition */
4144		if (!boot)
4145		return 0;
4146
4147		fd = open("/boot/grub/stage1", O_RDONLY);
4148		if (fd < 0)
4149		/* this doesn't exist if grub hasn't been installed */
4150		return 0;
4151
4152		if (read(fd, bootSect, 512) != 512) {
4153		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4154		"/boot/grub/stage1", strerror(errno));
4155		close(fd);
4156		return 1;
4157		}
4158		close(fd);
4159
4160	return checkDeviceBootloader(line->elements[1].item, boot);	/* The more elaborate checks do not work on SuSE. The checks done
4161		* seem to be reasonble (at least for now), so just return success
4162		*/
4163		if (onSuse)
4164		return 2;
4165
4166		return checkDeviceBootloader(boot, bootSect);
4167	}	}
4168
4169	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4170	int fd;	{
4171	unsigned char bootSect[512];	int fd;
4172	char * boot;	unsigned char bootSect[512];
4173		char *boot;
4174		char executable[] = "/boot/extlinux/extlinux";
4175
4176		printf("entered: checkForExtLinux()\n");
4177
4178		if (parseSysconfigGrub(NULL, &boot))
4179		return 0;
4180
4181		/* assume grub is not installed -- not an error condition */
4182		if (!boot)
4183		return 0;
4184
4185		fd = open(executable, O_RDONLY);
4186		if (fd < 0)
4187		/* this doesn't exist if grub hasn't been installed */
4188		return 0;
4189
4190		if (read(fd, bootSect, 512) != 512) {
4191		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4192		executable, strerror(errno));
4193		return 1;
4194		}
4195		close(fd);
4196
4197	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4198	return 0;	}
4199
4200	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4201	if (!boot)	{
4202	return 0;	/*
4203		* This is a simplistic check that we consider good enough for own puporses
4204		*
4205		* If we were to properly check if yaboot is *installed* we'd need to:
4206		* 1) get the system boot device (LT_BOOT)
4207		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4208		*    the content on the boot device
4209		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4210		* 4) check again if binary and boot device contents match
4211		*/
4212		if (!access("/etc/yaboot.conf", R_OK))
4213		return 2;
4214
4215	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4216	if (fd < 0)	}
4217	/* this doesn't exist if grub hasn't been installed */
4218	return 0;	int checkForElilo(struct grubConfig *config)
4219		{
4220		if (!access("/etc/elilo.conf", R_OK))
4221		return 2;
4222
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4223	return 1;	return 1;
4224	}	}
	close(fd);
4225
4226	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4227		{
4228		char *idx, *rootspec = NULL;
4229
4230		if (*str == '(') {
4231		idx = rootspec = strdup(str);
4232		while (*idx && (*idx != ')') && (!isspace(*idx)))
4233		idx++;
4234		*(++idx) = '\0';
4235		}
4236		return rootspec;
4237	}	}
4238
4239	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4240	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4241		const char *newKernelInitrd,
4242		const char **extraInitrds, int extraInitrdCount)
4243		{
4244		char *initrdVal, *end;
4245		int i;
4246		size_t totalSize;
4247		size_t prefixLen;
4248		char separatorChar;
4249
4250		prefixLen = strlen(prefix);
4251		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4252
4253		for (i = 0; i < extraInitrdCount; i++) {
4254		totalSize += sizeof(separatorChar);
4255		totalSize += strlen(extraInitrds[i]) - prefixLen;
4256		}
4257
4258		initrdVal = end = malloc(totalSize);
4259
4260		end = stpcpy(end, newKernelInitrd + prefixLen);
4261
4262		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4263		for (i = 0; i < extraInitrdCount; i++) {
4264		const char *extraInitrd;
4265		int j;
4266
4267		extraInitrd = extraInitrds[i] + prefixLen;
4268		/* Don't add entries that are already there */
4269		if (tmplLine != NULL) {
4270		for (j = 2; j < tmplLine->numElements; j++)
4271		if (strcmp
4272		(extraInitrd,
4273		tmplLine->elements[j].item) == 0)
4274		break;
4275
4276	if (*str == '(') {	if (j != tmplLine->numElements)
4277	idx = rootspec = strdup(str);	continue;
4278	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4279	*(++idx) = '\0';
4280	}	*end++ = separatorChar;
4281	return rootspec;	end = stpcpy(end, extraInitrd);
4282		}
4283
4284		return initrdVal;
4285	}	}
4286
4287	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4288	const char * prefix,	const char *prefix,
4289	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4290	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4291	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4292	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4293	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4294	int needs;	{
4295	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4296	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4297	char * chptr;	int needs;
4298	int i;	char *indexs;
4299	enum lineType_e type;	char *chptr;
4300		int rc;
4301	if (!newKernelPath) return 0;
4302		if (!newKernelPath)
4303	/* if the newKernelTitle is too long silently munge it into something	return 0;
4304	* we can live with. truncating is first check, then we'll just mess with
4305	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4306	if (config->cfi->maxTitleLength &&	if (rc < 0)
4307		return 1;
4308
4309		/* if the newKernelTitle is too long silently munge it into something
4310		* we can live with. truncating is first check, then we'll just mess with
4311		* it until it looks better */
4312		if (config->cfi->maxTitleLength &&
4313	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4314	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4315	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4316	int i = 1;	int i = 1;
4317
4318		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4319		newKernelTitle);
4320		while (findEntryByPath(config, buf, NULL, NULL)) {
4321		sprintf(numBuf, "%d", i++);
4322		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4323		}
4324
4325	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);
4326	}	}
4327
4328	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4329	}	new->skip = 0;
4330		new->multiboot = 0;
4331		new->lines = NULL;
4332		entry = config->entries;
4333		for (unsigned int i = 0; i < newIndex; i++) {
4334		if (!entry)
4335		break;
4336		prev = entry;
4337		entry = entry->next;
4338		}
4339		new->next = entry;
4340
4341	new = malloc(sizeof(*new));	if (prev)
4342	new->skip = 0;	prev->next = new;
4343	new->multiboot = 0;	else
4344	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;
	}
4345
4346	if (template) {	/* copy/update from the template */
4347	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4348	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4349	if (tmplLine->numElements)	needs |= NEED_INITRD;
4350	indent = tmplLine->indent;	if (newMBKernel) {
4351		needs |= NEED_MB;
4352	/* skip comments */	new->multiboot = 1;
4353	chptr = tmplLine->indent;	}
4354	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4355	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4356
4357	/* we don't need an initrd here */	if (template) {
4358	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4359		masterLine && (tmplLine = lineDup(masterLine));
4360	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4361	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4362	struct singleLine *l;	tmplLine->type);
4363	needs &= ~ KERNEL_MB;
4364		/* skip comments */
4365	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4366	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4367	newMBKernel + strlen(prefix));	chptr++;
4368		if (*chptr == '#')
4369	tmplLine = lastLine;	continue;
4370	if (!new->lines) {
4371	new->lines = l;	if (iskernel(tmplLine->type)
4372	} else {	&& tmplLine->numElements >= 2) {
4373	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4374	newLine = l;	/* it's not a multiboot template and
4375	}	* this is the kernel line.  Try to
4376	continue;	* be intelligent about inserting the
4377	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4378	template->multiboot && !new->multiboot) {	*/
4379	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4380	}	/* insert the hypervisor first */
4381		newLine =
4382	if (!new->lines) {	addLine(new, config->cfi,
4383	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4384	new->lines = newLine;	tmplLine->indent,
4385	} else {	newMBKernel +
4386	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4387	newLine = newLine->next;	/* set up for adding the
4388	}	* kernel line */
4389		free(tmplLine->indent);
4390		tmplLine->indent =
4391	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4392	newLine->next = NULL;	secondaryIndent);
4393	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4394	newLine->numElements = tmplLine->numElements;	}
4395	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4396	newLine->numElements);	/* use addLineTmpl to
4397	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4398	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4399	newLine->elements[i].indent =	* call addLine.
4400	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4401	}	* making some changes to the
4402		* template such as the
4403	lastLine = tmplLine;	* indent change above and
4404	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4405	char * repl;	*/
4406	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4407	needs &= ~KERNEL_KERNEL;	getKeywordByType
4408	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4409	} else {	if (mbm_kw) {
4410	needs &= ~KERNEL_MB;	tmplLine->type =
4411	repl = newMBKernel;	LT_MBMODULE;
4412	}	free(tmplLine->
4413	if (new->multiboot && !template->multiboot) {	elements[0].item);
4414	free(newLine->elements[0].item);	tmplLine->elements[0].
4415	newLine->elements[0].item = strdup("module");	item =
4416	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4417	}	}
4418	free(newLine->elements[1].item);	newLine =
4419	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4420	if (rootspec != NULL) {	newLine,
4421	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4422	rootspec,	strlen(prefix),
4423	repl +	config->cfi);
4424	strlen(prefix));	needs &= ~NEED_KERNEL;
4425	} else {	}
4426	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4427	strlen(prefix));	newLine =
4428	}	addLine(new, config->cfi,
4429	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4430	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4431	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4432	if (!new->multiboot && template->multiboot) {	newMBKernel +
4433	free(newLine->elements[0].item);	strlen(prefix));
4434	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4435	newLine->type = LT_KERNEL;	}
4436	}	} else if (needs & NEED_KERNEL) {
4437	free(newLine->elements[1].item);	newLine =
4438	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4439	if (rootspec != NULL) {	newKernelPath +
4440	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4441	rootspec,	config->cfi);
4442	newKernelPath +	needs &= ~NEED_KERNEL;
4443	strlen(prefix));	}
4444	} else {
4445	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4446	strlen(prefix));	tmplLine->numElements >= 2) {
4447	}	if (needs & NEED_MB) {
4448	} else if (tmplLine->type == LT_INITRD &&	newLine =
4449	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4450	needs &= ~KERNEL_INITRD;	newMBKernel +
4451	free(newLine->elements[1].item);	strlen(prefix),
4452	if (new->multiboot && !template->multiboot) {	config->cfi);
4453	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4454	newLine->elements[0].item = strdup("module");	}
4455	newLine->type = LT_MBMODULE;
4456	}	} else if (tmplLine->type == LT_MBMODULE &&
4457	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4458	if (rootspec != NULL) {	if (new->multiboot) {
4459	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4460	rootspec,	newLine =
4461	newKernelInitrd +	addLineTmpl(new, tmplLine,
4462	strlen(prefix));	newLine,
4463	} else {	newKernelPath +
4464	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4465	strlen(prefix));	config->cfi);
4466	}	needs &= ~NEED_KERNEL;
4467	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4468	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4469	needs &= ~KERNEL_INITRD;	char *initrdVal;
4470	if (!new->multiboot && template->multiboot) {	initrdVal =
4471	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4472	newLine->elements[0].item = strdup("initrd");	tmplLine,
4473	newLine->type = LT_INITRD;	newKernelInitrd,
4474	}	extraInitrds,
4475	free(newLine->elements[1].item);	extraInitrdCount);
4476	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4477	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4478	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4479	rootspec,	initrdVal,
4480	newKernelInitrd +	config->cfi);
4481	strlen(prefix));	free(initrdVal);
4482	} else {	needs &= ~NEED_INITRD;
4483	newLine->elements[1].item = strdup(newKernelInitrd +	}
4484	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4485	}	/* template is multi but new is not,
4486	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4487	tmplLine->numElements >= 2) {	* module slot
4488	needs &= ~KERNEL_TITLE;	*/
4489		tmplLine->type =
4490	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4491	free(newLine->elements[i].item);	config->cfi);
4492	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4493	}	tmplLine->elements[0].item =
4494		strdup(getKeywordByType
4495	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4496	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4497	newLine->numElements = 2;	newLine =
4498	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4499	config->cfi->titleBracketed &&	newKernelPath +
4500	tmplLine->numElements == 1) {	strlen(prefix),
4501	needs &= ~KERNEL_TITLE;	config->cfi);
4502	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4503	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4504	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4505	newLine->numElements);	/* template is multi but new is not,
4506		* insert the initrd in the second
4507	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4508	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4509	newLine->elements[0].indent = strdup("");	tmplLine->type =
4510	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4511	}	config->cfi);
4512	}	free(tmplLine->elements[0].item);
4513	} else {	tmplLine->elements[0].item =
4514	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4515	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4516	break;	config->cfi)->key);
4517	}	initrdVal =
4518		getInitrdVal(config, prefix,
4519		tmplLine,
4520		newKernelInitrd,
4521		extraInitrds,
4522		extraInitrdCount);
4523		newLine =
4524		addLineTmpl(new, tmplLine, newLine,
4525		initrdVal, config->cfi);
4526		free(initrdVal);
4527		needs &= ~NEED_INITRD;
4528		}
4529
4530		} else if (isinitrd(tmplLine->type)
4531		&& tmplLine->numElements >= 2) {
4532		if (needs & NEED_INITRD && new->multiboot
4533		&& !template->multiboot
4534		&& config->cfi->mbInitRdIsModule) {
4535		/* make sure we don't insert the
4536		* module initrd before the module
4537		* kernel... if we don't do it here,
4538		* it will be inserted following the
4539		* template.
4540		*/
4541		if (!needs & NEED_KERNEL) {
4542		char *initrdVal;
4543
4544		initrdVal =
4545		getInitrdVal(config, prefix,
4546		tmplLine,
4547		newKernelInitrd,
4548		extraInitrds,
4549		extraInitrdCount);
4550		newLine =
4551		addLine(new, config->cfi,
4552		LT_MBMODULE,
4553		config->
4554		secondaryIndent,
4555		initrdVal);
4556		free(initrdVal);
4557		needs &= ~NEED_INITRD;
4558		}
4559		} else if (needs & NEED_INITRD) {
4560		char *initrdVal;
4561		initrdVal =
4562		getInitrdVal(config, prefix,
4563		tmplLine,
4564		newKernelInitrd,
4565		extraInitrds,
4566		extraInitrdCount);
4567		newLine =
4568		addLineTmpl(new, tmplLine, newLine,
4569		initrdVal, config->cfi);
4570		free(initrdVal);
4571		needs &= ~NEED_INITRD;
4572		}
4573
4574		} else if (tmplLine->type == LT_MENUENTRY &&
4575		(needs & NEED_TITLE)) {
4576		requote(tmplLine, config->cfi);
4577		char *nkt = malloc(strlen(newKernelTitle) + 3);
4578		strcpy(nkt, "'");
4579		strcat(nkt, newKernelTitle);
4580		strcat(nkt, "'");
4581		newLine =
4582		addLineTmpl(new, tmplLine, newLine, nkt,
4583		config->cfi);
4584		free(nkt);
4585		needs &= ~NEED_TITLE;
4586		} else if (tmplLine->type == LT_TITLE &&
4587		(needs & NEED_TITLE)) {
4588		if (tmplLine->numElements >= 2) {
4589		newLine =
4590		addLineTmpl(new, tmplLine, newLine,
4591		newKernelTitle,
4592		config->cfi);
4593		needs &= ~NEED_TITLE;
4594		} else if (tmplLine->numElements == 1 &&
4595		config->cfi->titleBracketed) {
4596		/* addLineTmpl doesn't handle
4597		* titleBracketed */
4598		newLine =
4599		addLine(new, config->cfi, LT_TITLE,
4600		tmplLine->indent,
4601		newKernelTitle);
4602		needs &= ~NEED_TITLE;
4603		}
4604		} else if (tmplLine->type == LT_ECHO) {
4605		requote(tmplLine, config->cfi);
4606		static const char *prefix = "'Loading ";
4607		if (tmplLine->numElements > 1 &&
4608		strstr(tmplLine->elements[1].item, prefix)
4609		&& masterLine->next
4610		&& iskernel(masterLine->next->type)) {
4611		char *newTitle =
4612		malloc(strlen(prefix) +
4613		strlen(newKernelTitle) + 2);
4614
4615		strcpy(newTitle, prefix);
4616		strcat(newTitle, newKernelTitle);
4617		strcat(newTitle, "'");
4618		newLine =
4619		addLine(new, config->cfi, LT_ECHO,
4620		tmplLine->indent, newTitle);
4621		free(newTitle);
4622		} else {
4623		/* pass through other lines from the
4624		* template */
4625		newLine =
4626		addLineTmpl(new, tmplLine, newLine,
4627		NULL, config->cfi);
4628		}
4629		} else if (tmplLine->type == LT_DEVTREE &&
4630		tmplLine->numElements == 2
4631		&& newDevTreePath) {
4632		newLine =
4633		addLineTmpl(new, tmplLine, newLine,
4634		newDevTreePath + strlen(prefix),
4635		config->cfi);
4636		needs &= ~NEED_DEVTREE;
4637		} else if (tmplLine->type == LT_ENTRY_END
4638		&& needs & NEED_DEVTREE) {
4639		const char *ndtp = newDevTreePath;
4640		if (!strncmp
4641		(newDevTreePath, prefix, strlen(prefix)))
4642		ndtp += strlen(prefix);
4643		newLine = addLine(new, config->cfi, LT_DEVTREE,
4644		config->secondaryIndent,
4645		ndtp);
4646		needs &= ~NEED_DEVTREE;
4647		newLine =
4648		addLineTmpl(new, tmplLine, newLine, NULL,
4649		config->cfi);
4650		} else {
4651		/* pass through other lines from the template */
4652		newLine =
4653		addLineTmpl(new, tmplLine, newLine, NULL,
4654		config->cfi);
4655		}
4656		}
4657
4658	switch (config->cfi->keywords[i].type) {	} else {
4659	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4660	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4661	type = LT_KERNEL; break;	*/
4662	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4663	type = LT_TITLE; break;	case LT_KERNEL:
4664	default:	case LT_KERNEL_EFI:
4665	/* zipl strikes again */	case LT_KERNEL_16:
4666	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4667	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4668	chptr = newKernelTitle;	} else {
4669	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4670	break;	preferredLineType(LT_KERNEL,
4671	} else {	config->
4672	abort();	cfi),
4673	}	config->primaryIndent,
4674	}	newKernelPath +
4675		strlen(prefix));
4676	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	needs &= ~NEED_KERNEL;
4677	new->lines = newLine;	break;
4678	}	}
4679
4680	if (new->multiboot) {	case LT_HYPER:
4681	if (needs & KERNEL_MB)	newLine = addLine(new, config->cfi, LT_HYPER,
4682	newLine = addLine(new, config->cfi, LT_KERNEL,	config->primaryIndent,
4683	config->secondaryIndent,	newMBKernel + strlen(prefix));
4684	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4685	if (needs & KERNEL_KERNEL)	break;
4686	newLine = addLine(new, config->cfi, LT_MBMODULE,
4687	config->secondaryIndent,	case LT_MENUENTRY:{
4688	newKernelPath + strlen(prefix));	char *nkt = malloc(strlen(newKernelTitle) + 3);
4689	/* don't need to check for title as it's guaranteed to have been	strcpy(nkt, "'");
4690	* done as we only do multiboot with grub which uses title as	strcat(nkt, newKernelTitle);
4691	* a separator */	strcat(nkt, "'");
4692	if (needs & KERNEL_INITRD && newKernelInitrd)	newLine =
4693	newLine = addLine(new, config->cfi, LT_MBMODULE,	addLine(new, config->cfi, LT_MENUENTRY,
4694	config->secondaryIndent,	config->primaryIndent, nkt);
4695	newKernelInitrd + strlen(prefix));	free(nkt);
4696	} else {	needs &= ~NEED_TITLE;
4697	if (needs & KERNEL_KERNEL)	needs |= NEED_END;
4698	newLine = addLine(new, config->cfi, LT_KERNEL,	break;
4699	config->secondaryIndent,	}
4700	newKernelPath + strlen(prefix));	case LT_TITLE:
4701	if (needs & KERNEL_TITLE)	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4702	newLine = addLine(new, config->cfi, LT_TITLE,	char *templabel;
4703	config->secondaryIndent,	int x = 0, y = 0;
4704	newKernelTitle);
4705	if (needs & KERNEL_INITRD && newKernelInitrd)	templabel = strdup(newKernelTitle);
4706	newLine = addLine(new, config->cfi, LT_INITRD,	while (templabel[x]) {
4707	config->secondaryIndent,	if (templabel[x] == ' ') {
4708	newKernelInitrd + strlen(prefix));	y = x;
4709	}	while (templabel[y]) {
4710		templabel[y] =
4711		templabel[y + 1];
4712		y++;
4713		}
4714		}
4715		x++;
4716		}
4717		newLine = addLine(new, config->cfi, LT_TITLE,
4718		config->primaryIndent,
4719		templabel);
4720		free(templabel);
4721		} else {
4722		newLine = addLine(new, config->cfi, LT_TITLE,
4723		config->primaryIndent,
4724		newKernelTitle);
4725		}
4726		needs &= ~NEED_TITLE;
4727		break;
4728
4729	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	default:
4730	newMBKernelArgs, NULL)) return 1;	abort();
4731		}
4732		}
4733
4734	return 0;	struct singleLine *endLine = NULL;
4735		endLine = getLineByType(LT_ENTRY_END, new->lines);
4736		if (endLine) {
4737		removeLine(new, endLine);
4738		needs |= NEED_END;
4739		}
4740
4741		/* add the remainder of the lines, i.e. those that either
4742		* weren't present in the template, or in the case of no template,
4743		* all the lines following the entryStart.
4744		*/
4745		if (needs & NEED_TITLE) {
4746		newLine = addLine(new, config->cfi, LT_TITLE,
4747		config->secondaryIndent, newKernelTitle);
4748		needs &= ~NEED_TITLE;
4749		}
4750		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4751		newLine = addLine(new, config->cfi, LT_HYPER,
4752		config->secondaryIndent,
4753		newMBKernel + strlen(prefix));
4754		needs &= ~NEED_MB;
4755		}
4756		if (needs & NEED_KERNEL) {
4757		newLine = addLine(new, config->cfi,
4758		(new->multiboot
4759		&& getKeywordByType(LT_MBMODULE,
4760		config->cfi))
4761		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4762		config->
4763		cfi),
4764		config->secondaryIndent,
4765		newKernelPath + strlen(prefix));
4766		needs &= ~NEED_KERNEL;
4767		}
4768		if (needs & NEED_MB) {
4769		newLine = addLine(new, config->cfi, LT_HYPER,
4770		config->secondaryIndent,
4771		newMBKernel + strlen(prefix));
4772		needs &= ~NEED_MB;
4773		}
4774		if (needs & NEED_INITRD) {
4775		char *initrdVal;
4776		initrdVal =
4777		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4778		extraInitrds, extraInitrdCount);
4779		newLine =
4780		addLine(new, config->cfi,
4781		(new->multiboot
4782		&& getKeywordByType(LT_MBMODULE, config->cfi))
4783		? LT_MBMODULE : preferredLineType(LT_INITRD,
4784		config->cfi),
4785		config->secondaryIndent, initrdVal);
4786		free(initrdVal);
4787		needs &= ~NEED_INITRD;
4788		}
4789		if (needs & NEED_DEVTREE) {
4790		newLine = addLine(new, config->cfi, LT_DEVTREE,
4791		config->secondaryIndent, newDevTreePath);
4792		needs &= ~NEED_DEVTREE;
4793		}
4794
4795		/* NEEDS_END must be last on bootloaders that need it... */
4796		if (needs & NEED_END) {
4797		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4798		config->secondaryIndent, NULL);
4799		needs &= ~NEED_END;
4800		}
4801
4802		if (needs) {
4803		printf(_("grubby: needs=%d, aborting\n"), needs);
4804		abort();
4805		}
4806
4807		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4808		newMBKernelArgs, NULL)) {
4809		config->isModified = 1;
4810		return 1;
4811		}
4812
4813		return 0;
4814	}	}
4815
4816	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4817	poptContext optCon;	{
4818	char * grubConfig = NULL;	poptContext optCon;
4819	char * outputFile = NULL;	const char *grubConfig = NULL;
4820	int arg = 0;	char *outputFile = NULL;
4821	int flags = 0;	int arg = 0;
4822	int badImageOkay = 0;	int flags = 0;
4823	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4824	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4825	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4826	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4827	char * newKernelPath = NULL;	int configureExtLinux = 0;
4828	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4829	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4830	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4831	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4832	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4833	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4834	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4835	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4836	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4837	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4838	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4839	char * removeArgs = NULL;	int newIndex = 0;
4840	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4841	const char * chptr = NULL;	char *removeMBKernel = NULL;
4842	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4843	struct grubConfig * config;	char *defaultKernel = NULL;
4844	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4845	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4846	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4847	struct poptOption options[] = {	char *envPath = NULL;
4848	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4849	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4850	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4851	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4852	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4853	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4854	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4855	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4856	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4857	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4858	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4859	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4860	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4861	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4862	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4863	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4864	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4865	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4866	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4867		"new arguments for multiboot kernel being updated"), NULL},
4868		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4869		_
4870		("don't sanity check images in boot entries (for testing only)"),
4871		NULL},
4872		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4873		_
4874		("filesystem which contains /boot directory (for testing only)"),
4875		_("bootfs")},
4876		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4877		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4878		_("check which bootloader is installed on boot sector")},
4879	#endif	#endif
4880	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4881	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4882	_("path") },	_("path")},
4883	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4884	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4885	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4886	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4887	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4888	"template"), NULL },	"template"), NULL},
4889	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4890	_("display the path of the default kernel") },	_("print debugging information for failures")},
4891	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4892	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4893	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4894	_("configure grub bootloader") },	_("display the index of the default kernel")},
4895	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4896	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4897	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4899	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4900	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4901	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4902	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4903	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4904	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4905	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4906	_("path") },	_("path for environment data"),
4907	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4908	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4909	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4910	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4911	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4912	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4913	_("kernel-path") },	_("configure grub2 bootloader")},
4914	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4915	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4916	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4917	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4918	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4919	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4920	_("configure silo bootloader") },	_
4921	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4922	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4923	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4924	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4925	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4926	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4927	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4928	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4929	_("configure yaboot bootloader") },	_("path")},
4930	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4931	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4932	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4933	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4934	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4935		_("remove all entries for the specified kernel"),
4936	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4937	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4938		_("remove all entries for the specified multiboot kernel"),
4939	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4940	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4941	case 'v':	_("make the first entry referencing the specified kernel "
4942	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
4943	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4944	break;	_("make the given entry index the default entry"),
4945		_("entry-index")},
4946		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4947		_("use the given index when creating a new entry"),
4948		_("entry-index")},
4949		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4950		_("configure silo bootloader")},
4951		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4952		_("title to use for the new kernel entry"), _("entry-title")},
4953		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4954		_("updated information for the specified kernel"),
4955		_("kernel-path")},
4956		{"version", 'v', 0, NULL, 'v',
4957		_("print the version of this program and exit"), NULL},
4958		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4959		_("configure yaboot bootloader")},
4960		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4961		_("configure zipl bootloader")},
4962		POPT_AUTOHELP {0, 0, 0, 0, 0}
4963		};
4964
4965		useextlinuxmenu = 0;
4966
4967		int i = 0;
4968		for (int j = 1; j < argc; j++)
4969		i += strlen(argv[j]) + 1;
4970		saved_command_line = malloc(i);
4971		if (!saved_command_line) {
4972		fprintf(stderr, "grubby: %m\n");
4973		exit(1);
4974		}
4975		saved_command_line[0] = '\0';
4976		for (int j = 1; j < argc; j++) {
4977		strcat(saved_command_line, argv[j]);
4978		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4979		}
4980
4981		optCon = poptGetContext("grubby", argc, argv, options, 0);
4982		poptReadDefaultConfig(optCon, 1);
4983
4984		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4985		switch (arg) {
4986		case 'v':
4987		printf("grubby version %s\n", VERSION);
4988		exit(0);
4989		break;
4990		case 'i':
4991		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4992		extraInitrds[extraInitrdCount++] =
4993		strdup(poptGetOptArg(optCon));
4994		} else {
4995		fprintf(stderr,
4996		_
4997		("grubby: extra initrd maximum is %d\n"),
4998		extraInitrdCount);
4999		return 1;
5000		}
5001		break;
5002		}
5003	}	}
	}
5004
5005	if (arg < -1) {	if (arg < -1) {
5006	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5007	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5008	poptStrerror(arg));	poptStrerror(arg));
5009	return 1;	return 1;
5010	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5011
5012	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5013	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5014	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
5015	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;
	}
5016
5017	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5018	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
5019	cfi = &eliloConfigType;	configureExtLinux) > 1) {
5020	#elif __powerpc__	fprintf(stderr,
5021	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
5022	#elif __sparc__	return 1;
5023	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
5024	#elif __s390__	fprintf(stderr,
5025	cfi = &ziplConfigType;	_
5026	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
5027	cfi = &ziplConfigtype;	return 1;
5028	#else	} else if (configureGrub2) {
5029	cfi = &grubConfigType;	cfi = &grub2ConfigType;
5030	#endif	if (envPath)
5031	}	cfi->envFile = envPath;
5032		} else if (configureLilo) {
5033		cfi = &liloConfigType;
5034		} else if (configureGrub) {
5035		cfi = &grubConfigType;
5036		} else if (configureELilo) {
5037		cfi = &eliloConfigType;
5038		} else if (configureYaboot) {
5039		cfi = &yabootConfigType;
5040		} else if (configureSilo) {
5041		cfi = &siloConfigType;
5042		} else if (configureZipl) {
5043		cfi = &ziplConfigType;
5044		} else if (configureExtLinux) {
5045		cfi = &extlinuxConfigType;
5046		useextlinuxmenu = 1;
5047		}
5048
5049		if (!cfi) {
5050		if (grub2FindConfig(&grub2ConfigType)) {
5051		cfi = &grub2ConfigType;
5052		if (envPath)
5053		cfi->envFile = envPath;
5054		} else
5055		#ifdef __ia64__
5056		cfi = &eliloConfigType;
5057		#elif __powerpc__
5058		cfi = &yabootConfigType;
5059		#elif __sparc__
5060		cfi = &siloConfigType;
5061		#elif __s390__
5062		cfi = &ziplConfigType;
5063		#elif __s390x__
5064		cfi = &ziplConfigtype;
5065		#else
5066		cfi = &grubConfigType;
5067		#endif
5068		}
5069
5070	if (!grubConfig)	if (!grubConfig) {
5071	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
5072		grubConfig = cfi->findConfig(cfi);
5073		if (!grubConfig)
5074		grubConfig = cfi->defaultConfig;
5075		}
5076
5077	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5078	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5079	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5080	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5081		|| (defaultIndex >= 0))) {
5082		fprintf(stderr,
5083		_("grubby: --bootloader-probe may not be used with "
5084	"specified option"));	"specified option"));
5085	return 1;	return 1;
5086	}	}
5087
5088	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5089	removeKernelPath)) {	removeKernelPath)) {
5090	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5091	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5092	return 1;	return 1;
5093	}	}
5094
5095	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5096	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5097	return 1;	return 1;
5098	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5099	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5100	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5101	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5102	return 1;	return 1;
5103	}	}
5104
5105	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5106	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5107	"not be used together"));	"not be used together"));
5108	return 1;	return 1;
5109	}	}
5110
5111	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5112	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5113		"may not be used together\n"));
5114		return 1;
5115		} else if (defaultKernel && removeKernelPath &&
5116		!strcmp(defaultKernel, removeKernelPath)) {
5117		fprintf(stderr,
5118		_("grubby: cannot make removed kernel the default\n"));
5119		return 1;
5120		} else if (defaultKernel && newKernelPath &&
5121		!strcmp(defaultKernel, newKernelPath)) {
5122		makeDefault = 1;
5123		defaultKernel = NULL;
5124		} else if (defaultKernel && (defaultIndex >= 0)) {
5125		fprintf(stderr,
5126		_("grubby: --set-default and --set-default-index "
5127	"may not be used together\n"));	"may not be used together\n"));
5128	return 1;	return 1;
5129	} 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;
	}
5130
5131	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5132	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5133	"is used\n"));	_("grubby: output file must be specified if stdin "
5134	return 1;	"is used\n"));
5135	}	return 1;
5136		}
5137
5138	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5139	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5140	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5141	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5142	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5143	}	return 1;
5144		}
5145
5146	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5147
5148	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5149	if (!bootPrefix) {	if (!bootPrefix) {
5150	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5151	if (!bootPrefix) return 1;	if (!bootPrefix)
5152	} else {	return 1;
5153	/* this shouldn't end with a / */	} else {
5154	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5155	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5156		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5157		}
5158		} else {
5159		bootPrefix = "";
5160	}	}
	} else {
	bootPrefix = "";
	}
5161
5162	if (bootloaderProbe) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5163	int lrc = 0, grc = 0;	fprintf(stderr,
5164	struct grubConfig * lconfig, * gconfig;	_("grubby: %s doesn't allow multiple initrds\n"),
5165		cfi->defaultConfig);
5166	if (!access(grubConfigType.defaultConfig, F_OK)) {	return 1;
5167	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);
	}
5168
5169	if (lrc == 1 || grc == 1) return 1;	if (bootloaderProbe) {
5170		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5171		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5172
5173		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5174		if (grub2config) {
5175		gconfig = readConfig(grub2config, &grub2ConfigType);
5176		if (!gconfig)
5177		gr2c = 1;
5178		else
5179		gr2c = checkForGrub2(gconfig);
5180		}
5181
5182	if (lrc == 2) printf("lilo\n");	const char *grubconfig = grubFindConfig(&grubConfigType);
5183	if (grc == 2) printf("grub\n");	if (!access(grubconfig, F_OK)) {
5184		gconfig = readConfig(grubconfig, &grubConfigType);
5185		if (!gconfig)
5186		grc = 1;
5187		else
5188		grc = checkForGrub(gconfig);
5189		}
5190
5191	return 0;	if (!access(liloConfigType.defaultConfig, F_OK)) {
5192	}	lconfig =
5193		readConfig(liloConfigType.defaultConfig,
5194		&liloConfigType);
5195		if (!lconfig)
5196		lrc = 1;
5197		else
5198		lrc = checkForLilo(lconfig);
5199		}
5200
5201	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5202	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5203		&eliloConfigType);
5204		if (!econfig)
5205		erc = 1;
5206		else
5207		erc = checkForElilo(econfig);
5208		}
5209
5210	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5211	struct singleLine * line;	lconfig =
5212	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5213	char * rootspec;	&extlinuxConfigType);
5214		if (!lconfig)
5215	if (config->defaultImage == -1) return 0;	extrc = 1;
5216	entry = findEntryByIndex(config, config->defaultImage);	else
5217	if (!entry) return 0;	extrc = checkForExtLinux(lconfig);
5218	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));
5219
5220	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5221	} else if (kernelInfo)	yconfig = readConfig(yabootConfigType.defaultConfig,
5222	return displayInfo(config, kernelInfo, bootPrefix);	&yabootConfigType);
5223		if (!yconfig)
5224		yrc = 1;
5225		else
5226		yrc = checkForYaboot(yconfig);
5227		}
5228
5229	if (copyDefault) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5230	template = findTemplate(config, bootPrefix, NULL, 0, flags);	|| erc == 1)
5231	if (!template) return 1;	return 1;
5232	}
5233		if (lrc == 2)
5234		printf("lilo\n");
5235		if (gr2c == 2)
5236		printf("grub2\n");
5237		if (grc == 2)
5238		printf("grub\n");
5239		if (extrc == 2)
5240		printf("extlinux\n");
5241		if (yrc == 2)
5242		printf("yaboot\n");
5243		if (erc == 2)
5244		printf("elilo\n");
5245
5246		return 0;
5247		}
5248
5249		if (grubConfig == NULL) {
5250		printf("Could not find bootloader configuration file.\n");
5251		exit(1);
5252		}
5253
5254	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5255	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5256	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5257	bootPrefix, flags);
5258	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5259	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5260	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5261	if (addNewKernel(config, template, bootPrefix, newKernelPath,	char *rootspec;
5262	newKernelTitle, newKernelArgs, newKernelInitrd,
5263	newMBKernel, newMBKernelArgs)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5264		return 0;
5265		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5266	if (numEntries(config) == 0) {	cfi->defaultIsSaved)
5267	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	config->defaultImage = FIRST_ENTRY_INDEX;
5268	"Not writing out new config.\n"));	entry = findEntryByIndex(config, config->defaultImage);
5269	return 1;	if (!entry)
5270	}	return 0;
5271		if (!suitableImage(entry, bootPrefix, 0, flags))
5272		return 0;
5273
5274		line =
5275		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5276		LT_KERNEL_16, entry->lines);
5277		if (!line)
5278		return 0;
5279
5280		rootspec = getRootSpecifier(line->elements[1].item);
5281		printf("%s%s\n", bootPrefix, line->elements[1].item +
5282		((rootspec != NULL) ? strlen(rootspec) : 0));
5283
5284		return 0;
5285
5286		} else if (displayDefaultTitle) {
5287		struct singleLine *line;
5288		struct singleEntry *entry;
5289
5290		if (config->defaultImage == NO_DEFAULT_ENTRY)
5291		return 0;
5292		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5293		cfi->defaultIsSaved)
5294		config->defaultImage = FIRST_ENTRY_INDEX;
5295		entry = findEntryByIndex(config, config->defaultImage);
5296		if (!entry)
5297		return 0;
5298
5299		if (!configureGrub2) {
5300		char *title;
5301		line = getLineByType(LT_TITLE, entry->lines);
5302		if (!line)
5303		return 0;
5304		title = extractTitle(config, line);
5305		if (!title)
5306		return 0;
5307		printf("%s\n", title);
5308		free(title);
5309		} else {
5310		char *title;
5311
5312		dbgPrintf
5313		("This is GRUB2, default title is embeded in menuentry\n");
5314		line = getLineByType(LT_MENUENTRY, entry->lines);
5315		if (!line)
5316		return 0;
5317		title = grub2ExtractTitle(line);
5318		if (title)
5319		printf("%s\n", title);
5320		}
5321		return 0;
5322
5323		} else if (displayDefaultIndex) {
5324		if (config->defaultImage == NO_DEFAULT_ENTRY)
5325		return 0;
5326		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5327		cfi->defaultIsSaved)
5328		config->defaultImage = FIRST_ENTRY_INDEX;
5329		printf("%i\n", config->defaultImage);
5330		return 0;
5331
5332		} else if (kernelInfo)
5333		return displayInfo(config, kernelInfo, bootPrefix);
5334
5335		if (copyDefault) {
5336		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5337		if (!template)
5338		return 1;
5339		}
5340
5341		markRemovedImage(config, removeKernelPath, bootPrefix);
5342		markRemovedImage(config, removeMBKernel, bootPrefix);
5343		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5344		makeDefault, bootPrefix, flags, defaultIndex,
5345		newIndex);
5346		setFallbackImage(config, newKernelPath != NULL);
5347		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5348		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5349		return 1;
5350		if (updateKernelPath && newKernelInitrd) {
5351		if (newMBKernel) {
5352		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5353		bootPrefix, newKernelInitrd,
5354		newKernelTitle))
5355		return 1;
5356		} else {
5357		if (updateInitrd(config, updateKernelPath, bootPrefix,
5358		newKernelInitrd, newKernelTitle))
5359		return 1;
5360		}
5361		}
5362		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5363		newKernelTitle, newKernelArgs, newKernelInitrd,
5364		(const char **)extraInitrds, extraInitrdCount,
5365		newMBKernel, newMBKernelArgs, newDevTreePath,
5366		newIndex))
5367		return 1;
5368
5369		if (numEntries(config) == 0) {
5370		fprintf(stderr,
5371		_("grubby: doing this would leave no kernel entries. "
5372		"Not writing out new config.\n"));
5373		return 1;
5374		}
5375
5376	if (!outputFile)	if (!outputFile)
5377	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5378
5379	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5380	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3026