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 3025 by niro, Tue Jun 27 14:42:27 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		/* user requested first-entry-found */
2573		if (!findEntryByPath(config, defaultKernelPath,
2574		prefix, &firstKernelEntryIndex)) {
2575		/* don't change default if can't find match */
2576		config->defaultImage = NO_DEFAULT_ENTRY;
2577		return;
2578		}
2579
2580		config->defaultImage = firstKernelEntryIndex;
2581
2582		/* this is where we start looking for decrement later */
2583		currentLookupIndex = config->defaultImage;
2584
2585		if (isAddingBootEntry && !config->isModified &&
2586		(newBootEntryIndex < config->defaultImage)) {
2587		/* increment because new entry added before default */
2588		config->defaultImage++;
2589		}
2590	} else {	} else {
2591	config->defaultImage = -1;	/* use pre-existing default entry */
2592	return;	currentLookupIndex = config->defaultImage;
2593
2594		if (isAddingBootEntry
2595		&& (newBootEntryIndex <= config->defaultImage)) {
2596		config->defaultImage++;
2597
2598		if (config->isModified) {
2599		currentLookupIndex++;
2600		}
2601		}
2602		}
2603
2604		/* sanity check - is this entry index valid? */
2605		bootEntry = findEntryByIndex(config, currentLookupIndex);
2606
2607		if ((bootEntry && bootEntry->skip) || !bootEntry) {
2608		/* entry is to be skipped or is invalid */
2609		if (isAddingBootEntry) {
2610		config->defaultImage = newBootEntryIndex;
2611		return;
2612		}
2613		newDefault =
2614		findTemplate(config, prefix, &config->defaultImage, 1,
2615		flags);
2616		if (!newDefault) {
2617		config->defaultImage = NO_DEFAULT_ENTRY;
2618		}
2619
2620		return;
2621		}
2622
2623		currentLookupIndex--;
2624
2625		/* decrement index by the total number of entries deleted */
2626
2627		for (indexToVerify = currentLookupIndex;
2628		indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2629
2630		bootEntry = findEntryByIndex(config, indexToVerify);
2631
2632		if (bootEntry && bootEntry->skip) {
2633		config->defaultImage--;
2634		}
2635	}	}
2636	}	}
2637
2638	/* defaultImage now points to what we'd like to use, but before any order	void setFallbackImage(struct grubConfig *config, int hasNew)
2639	changes */	{
2640	if (config->defaultImage == DEFAULT_SAVED)	struct singleEntry *entry, *entry2;
2641	/* default is set to saved, we don't want to change it */	int j;
2642	return;
2643		if (config->fallbackImage == -1)
2644	if (config->defaultImage > -1)	return;
2645	entry = findEntryByIndex(config, config->defaultImage);
2646	else	entry = findEntryByIndex(config, config->fallbackImage);
2647	entry = NULL;	if (!entry || entry->skip) {
2648		config->fallbackImage = -1;
2649		return;
2650		}
2651
	if (entry && !entry->skip) {
	/* we can preserve the default */
2652	if (hasNew)	if (hasNew)
2653	config->defaultImage++;	config->fallbackImage++;
2654
2655	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2656	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2657	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2658	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2659	}	config->fallbackImage--;
2660	} 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;
	}
2661	}	}
2662
2663	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2664	struct singleEntry * entry, * entry2;	{
2665	int j;	struct singleLine *line;
2666		char *root = NULL;
2667	if (config->fallbackImage == -1) return;	int i;
2668		int j;
2669	entry = findEntryByIndex(config, config->fallbackImage);
2670	if (!entry || entry->skip) {	printf("index=%d\n", index);
2671	config->fallbackImage = -1;
2672	return;	line =
2673	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2674		entry->lines);
2675		if (!line) {
2676		printf("non linux entry\n");
2677		return;
2678		}
2679
2680	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2681	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2682		else
2683	/* 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--;
	}
	}
2684
2685	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2686	struct singleLine * line;	printf("args=\"");
2687	char * root = NULL;	i = 2;
2688	int i;	while (i < line->numElements) {
2689		if (!strncmp(line->elements[i].item, "root=", 5)) {
2690	line = entry->lines;	root = line->elements[i].item + 5;
2691	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2692		printf("%s%s", line->elements[i].item,
2693	printf("index=%d\n", index);	line->elements[i].indent);
2694		}
2695	printf("kernel=%s\n", line->elements[1].item);
2696		i++;
2697	if (line->numElements >= 3) {	}
2698	printf("args=\"");	printf("\"\n");
2699	i = 2;	} else {
2700	while (i < line->numElements) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2701	if (!strncmp(line->elements[i].item, "root=", 5)) {	if (line) {
2702	root = line->elements[i].item + 5;	char *s;
2703	} else {
2704	printf("%s%s", line->elements[i].item,	printf("args=\"");
2705	line->elements[i].indent);	i = 1;
2706	}	while (i < line->numElements) {
2707		if (!strncmp
2708		(line->elements[i].item, "root=", 5)) {
2709		root = line->elements[i].item + 5;
2710		} else {
2711		s = line->elements[i].item;
2712
2713		printf("%s%s", s,
2714		line->elements[i].indent);
2715		}
2716
2717	i++;	i++;
2718		}
2719
2720		s = line->elements[i - 1].indent;
2721		printf("\"\n");
2722		}
2723		}
2724
2725		if (!root) {
2726		line = getLineByType(LT_ROOT, entry->lines);
2727		if (line && line->numElements >= 2)
2728		root = line->elements[1].item;
2729	}	}
2730	printf("\"\n");
2731	} else {	if (root) {
2732	line = entry->lines;	char *s = alloca(strlen(root) + 1);
2733	while (line && line->type != LT_KERNELARGS) line=line->next;
2734		strcpy(s, root);
2735		if (s[strlen(s) - 1] == '"')
2736		s[strlen(s) - 1] = '\0';
2737		/* make sure the root doesn't have a trailing " */
2738		printf("root=%s\n", s);
2739		}
2740
2741		line =
2742		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2743		entry->lines);
2744
2745		if (line && line->numElements >= 2) {
2746		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2747		printf("initrd=");
2748		else
2749		printf("initrd=%s", prefix);
2750
2751		for (i = 1; i < line->numElements; i++)
2752		printf("%s%s", line->elements[i].item,
2753		line->elements[i].indent);
2754		printf("\n");
2755		}
2756
2757		line = getLineByType(LT_TITLE, entry->lines);
2758	if (line) {	if (line) {
2759	char * s;	printf("title=%s\n", line->elements[1].item);
2760		} else {
2761		char *title;
2762		line = getLineByType(LT_MENUENTRY, entry->lines);
2763		if (line) {
2764		title = grub2ExtractTitle(line);
2765		if (title)
2766		printf("title=%s\n", title);
2767		}
2768		}
2769
2770		for (j = 0, line = entry->lines; line; line = line->next) {
2771		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2772		if (!strncmp
2773		(prefix, line->elements[1].item, strlen(prefix)))
2774		printf("mbmodule%d=", j);
2775		else
2776		printf("mbmodule%d=%s", j, prefix);
2777
2778		for (i = 1; i < line->numElements; i++)
2779		printf("%s%s", line->elements[i].item,
2780		line->elements[i].indent);
2781		printf("\n");
2782		j++;
2783		}
2784		}
2785		}
2786
2787		int isSuseSystem(void)
2788		{
2789		const char *path;
2790		const static char default_path[] = "/etc/SuSE-release";
2791
2792		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2793		path = default_path;
2794
2795		if (!access(path, R_OK))
2796		return 1;
2797		return 0;
2798		}
2799
2800		int isSuseGrubConf(const char *path)
2801		{
2802		FILE *grubConf;
2803		char *line = NULL;
2804		size_t len = 0, res = 0;
2805
2806		grubConf = fopen(path, "r");
2807		if (!grubConf) {
2808		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2809		path);
2810		return 0;
2811		}
2812
2813		while ((res = getline(&line, &len, grubConf)) != -1) {
2814		if (!strncmp(line, "setup", 5)) {
2815		fclose(grubConf);
2816		free(line);
2817		return 1;
2818		}
2819		}
2820
2821	printf("args=\"");	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2822	i = 1;	path);
2823	while (i < line->numElements) {
2824	if (!strncmp(line->elements[i].item, "root=", 5)) {	fclose(grubConf);
2825	root = line->elements[i].item + 5;	free(line);
2826		return 0;
2827		}
2828
2829		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2830		{
2831		FILE *grubConf;
2832		char *line = NULL;
2833		size_t res = 0, len = 0;
2834
2835		if (!path)
2836		return 1;
2837		if (!lbaPtr)
2838		return 1;
2839
2840		grubConf = fopen(path, "r");
2841		if (!grubConf)
2842		return 1;
2843
2844		while ((res = getline(&line, &len, grubConf)) != -1) {
2845		if (line[res - 1] == '\n')
2846		line[res - 1] = '\0';
2847		else if (len > res)
2848		line[res] = '\0';
2849		else {
2850		line = realloc(line, res + 1);
2851		line[res] = '\0';
2852		}
2853
2854		if (!strncmp(line, "setup", 5)) {
2855		if (strstr(line, "--force-lba")) {
2856		*lbaPtr = 1;
2857		} else {
2858		*lbaPtr = 0;
2859		}
2860		dbgPrintf("lba: %i\n", *lbaPtr);
2861		break;
2862		}
2863		}
2864
2865		free(line);
2866		fclose(grubConf);
2867		return 0;
2868		}
2869
2870		int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2871		{
2872		FILE *grubConf;
2873		char *line = NULL;
2874		size_t res = 0, len = 0;
2875		char *lastParamPtr = NULL;
2876		char *secLastParamPtr = NULL;
2877		char installDeviceNumber = '\0';
2878		char *bounds = NULL;
2879
2880		if (!path)
2881		return 1;
2882		if (!devicePtr)
2883		return 1;
2884
2885		grubConf = fopen(path, "r");
2886		if (!grubConf)
2887		return 1;
2888
2889		while ((res = getline(&line, &len, grubConf)) != -1) {
2890		if (strncmp(line, "setup", 5))
2891		continue;
2892
2893		if (line[res - 1] == '\n')
2894		line[res - 1] = '\0';
2895		else if (len > res)
2896		line[res] = '\0';
2897		else {
2898		line = realloc(line, res + 1);
2899		line[res] = '\0';
2900		}
2901
2902		lastParamPtr = bounds = line + res;
2903
2904		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2905		while (!isspace(*lastParamPtr))
2906		lastParamPtr--;
2907		lastParamPtr++;
2908
2909		secLastParamPtr = lastParamPtr - 2;
2910		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2911
2912		if (lastParamPtr + 3 > bounds) {
2913		dbgPrintf("lastParamPtr going over boundary");
2914		fclose(grubConf);
2915		free(line);
2916		return 1;
2917		}
2918		if (!strncmp(lastParamPtr, "(hd", 3))
2919		lastParamPtr += 3;
2920		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2921
2922		/*
2923		* Second last parameter will decide wether last parameter is
2924		* an IMAGE_DEVICE or INSTALL_DEVICE
2925		*/
2926		while (!isspace(*secLastParamPtr))
2927		secLastParamPtr--;
2928		secLastParamPtr++;
2929
2930		if (secLastParamPtr + 3 > bounds) {
2931		dbgPrintf("secLastParamPtr going over boundary");
2932		fclose(grubConf);
2933		free(line);
2934		return 1;
2935		}
2936		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2937		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2938		secLastParamPtr += 3;
2939		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2940		installDeviceNumber = *secLastParamPtr;
2941	} else {	} else {
2942	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
2943		}
2944
2945	printf("%s%s", s, line->elements[i].indent);	*devicePtr = malloc(6);
2946		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2947		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2948		fclose(grubConf);
2949		free(line);
2950		return 0;
2951		}
2952
2953		free(line);
2954		fclose(grubConf);
2955		return 1;
2956		}
2957
2958		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2959		{
2960		FILE *deviceMap;
2961		char *line = NULL;
2962		size_t res = 0, len = 0;
2963		char *devicePtr;
2964		char *bounds = NULL;
2965		const char *path;
2966		const static char default_path[] = "/boot/grub/device.map";
2967
2968		if (!device)
2969		return 1;
2970		if (!bootPtr)
2971		return 1;
2972
2973		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2974		path = default_path;
2975
2976		dbgPrintf("opening grub device.map file from: %s\n", path);
2977		deviceMap = fopen(path, "r");
2978		if (!deviceMap)
2979		return 1;
2980
2981		while ((res = getline(&line, &len, deviceMap)) != -1) {
2982		if (!strncmp(line, "#", 1))
2983		continue;
2984
2985		if (line[res - 1] == '\n')
2986		line[res - 1] = '\0';
2987		else if (len > res)
2988		line[res] = '\0';
2989		else {
2990		line = realloc(line, res + 1);
2991		line[res] = '\0';
2992	}	}
2993
2994	i++;	devicePtr = line;
2995	}	bounds = line + res;
2996
2997		while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2998		devicePtr++;
2999		dbgPrintf("device: %s\n", devicePtr);
3000
3001		if (!strncmp(devicePtr, device, strlen(device))) {
3002		devicePtr += strlen(device);
3003		while (isspace(*devicePtr)
3004		&& ((devicePtr + 1) <= bounds))
3005		devicePtr++;
3006
3007	s = line->elements[i - 1].indent;	*bootPtr = strdup(devicePtr);
3008	printf("\"\n");	break;
3009		}
3010	}	}
	}
3011
3012	if (!root) {	free(line);
3013	line = entry->lines;	fclose(deviceMap);
3014	while (line && line->type != LT_ROOT) line = line->next;	return 0;
3015		}
3016
3017	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3018	root=line->elements[1].item;	{
3019	}	char *grubDevice;
3020
3021	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3022	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
3023		else
3024	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);
	}
3025
3026	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3027	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
3028		else
3029		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3030
3031	if (line && line->numElements >= 2) {	free(grubDevice);
3032	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");
	}
3033	}	}
3034
3035	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3036	FILE * in;	{
3037	char buf[1024];	/*
3038	char * chptr;	* This SuSE grub configuration file at this location is not your
3039	char * start;	* average grub configuration file, but instead the grub commands
3040	char * param;	* used to setup grub on that system.
3041		*/
3042	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
3043	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);
	}
3044
3045	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3046		path = default_path;
3047
3048	return 0;	if (!isSuseGrubConf(path))
3049		return 1;
3050
3051		if (lbaPtr) {
3052		*lbaPtr = 0;
3053		if (suseGrubConfGetLba(path, lbaPtr))
3054		return 1;
3055		}
3056
3057		if (bootPtr) {
3058		*bootPtr = NULL;
3059		suseGrubConfGetBoot(path, bootPtr);
3060		}
3061
3062		return 0;
3063	}	}
3064
3065	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3066	char * boot;	{
3067	int lba;	FILE *in;
3068		char buf[1024];
3069	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
3070	if (lba) printf("lba\n");	char *start;
3071	if (boot) printf("boot=%s\n", boot);	char *param;
3072	}
3073		in = fopen("/etc/sysconfig/grub", "r");
3074		if (!in)
3075		return 1;
3076
3077		if (lbaPtr)
3078		*lbaPtr = 0;
3079		if (bootPtr)
3080		*bootPtr = NULL;
3081
3082		while (fgets(buf, sizeof(buf), in)) {
3083		start = buf;
3084		while (isspace(*start))
3085		start++;
3086		if (*start == '#')
3087		continue;
3088
3089		chptr = strchr(start, '=');
3090		if (!chptr)
3091		continue;
3092		chptr--;
3093		while (*chptr && isspace(*chptr))
3094		chptr--;
3095		chptr++;
3096		*chptr = '\0';
3097
3098		param = chptr + 1;
3099		while (*param && isspace(*param))
3100		param++;
3101		if (*param == '=') {
3102		param++;
3103		while (*param && isspace(*param))
3104		param++;
3105		}
3106
3107		chptr = param;
3108		while (*chptr && !isspace(*chptr))
3109		chptr++;
3110		*chptr = '\0';
3111
3112		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3113		*lbaPtr = 1;
3114		else if (!strcmp(start, "boot") && bootPtr)
3115		*bootPtr = strdup(param);
3116		}
3117
3118		fclose(in);
3119
3120		return 0;
3121	}	}
3122
3123	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3124	const char * prefix) {	{
3125	int i = 0;	char *boot = NULL;
3126	struct singleEntry * entry;	int lba;
3127	struct singleLine * line;
3128		if (isSuseSystem()) {
3129	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3130	if (!entry) {	free(boot);
3131	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3132	return 1;	}
3133	}	} else {
3134		if (parseSysconfigGrub(&lba, &boot)) {
3135		free(boot);
3136		return;
3137		}
3138		}
3139
3140	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3141	be a better way */	printf("lba\n");
3142	if (config->cfi == &grubConfigType) {	if (boot) {
3143	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3144	} 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);
3145	}	}
3146		}
3147
3148	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3149	while (line && line->type != LT_LBA) line = line->next;	{
3150	if (line) printf("lba\n");	int i = 0;
3151	}	struct singleEntry *entry;
3152		struct singleLine *line;
3153
3154		entry = findEntryByPath(config, kernel, prefix, &i);
3155		if (!entry) {
3156		fprintf(stderr, _("grubby: kernel not found\n"));
3157		return 1;
3158		}
3159
3160	displayEntry(entry, prefix, i);	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3161		be a better way */
3162		if (config->cfi == &grubConfigType) {
3163		dumpSysconfigGrub();
3164		} else {
3165		line = getLineByType(LT_BOOT, config->theLines);
3166		if (line && line->numElements >= 1) {
3167		printf("boot=%s\n", line->elements[1].item);
3168		}
3169
3170		line = getLineByType(LT_LBA, config->theLines);
3171		if (line)
3172		printf("lba\n");
3173		}
3174
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3175	displayEntry(entry, prefix, i);	displayEntry(entry, prefix, i);
3176
3177	i++;	i++;
3178	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3179		displayEntry(entry, prefix, i);
3180		i++;
3181		}
3182
3183	return 0;	return 0;
3184		}
3185
3186		struct singleLine *addLineTmpl(struct singleEntry *entry,
3187		struct singleLine *tmplLine,
3188		struct singleLine *prevLine,
3189		const char *val, struct configFileInfo *cfi)
3190		{
3191		struct singleLine *newLine = lineDup(tmplLine);
3192
3193		if (isEfi && cfi == &grub2ConfigType) {
3194		enum lineType_e old = newLine->type;
3195		newLine->type = preferredLineType(newLine->type, cfi);
3196		if (old != newLine->type)
3197		newLine->elements[0].item =
3198		getKeyByType(newLine->type, cfi);
3199		}
3200
3201		if (val) {
3202		/* override the inherited value with our own.
3203		* This is a little weak because it only applies to elements[1]
3204		*/
3205		if (newLine->numElements > 1)
3206		removeElement(newLine, 1);
3207		insertElement(newLine, val, 1, cfi);
3208
3209		/* but try to keep the rootspec from the template... sigh */
3210		if (tmplLine->
3211		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3212		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3213		LT_INITRD_16)) {
3214		char *rootspec =
3215		getRootSpecifier(tmplLine->elements[1].item);
3216		if (rootspec != NULL) {
3217		free(newLine->elements[1].item);
3218		newLine->elements[1].item =
3219		sdupprintf("%s%s", rootspec, val);
3220		}
3221		}
3222		}
3223
3224		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3225		newLine->elements[0].item : "");
3226
3227		if (!entry->lines) {
3228		/* first one on the list */
3229		entry->lines = newLine;
3230		} else if (prevLine) {
3231		/* add after prevLine */
3232		newLine->next = prevLine->next;
3233		prevLine->next = newLine;
3234		}
3235
3236		return newLine;
3237	}	}
3238
3239	/* val may be NULL */	/* val may be NULL */
3240	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3241	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3242	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3243	char * val) {	const char *val)
3244	struct singleLine * line, * prev;	{
3245	int i;	struct singleLine *line, *prev;
3246		struct keywordTypes *kw;
3247	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3248	if (cfi->keywords[i].type == type) break;
3249	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3250	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3251		*/
3252	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3253	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3254	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3255	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3256	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3257	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3258	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3259	prev = NULL;	tmpl.elements[0].indent = "";
3260	while (line) {	val = NULL;
3261	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3262	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3263		if (!val) {
3264		fprintf(stderr,
3265		"Line type LT_MENUENTRY requires a value\n");
3266		abort();
3267		}
3268		kw = getKeywordByType(type, cfi);
3269		if (!kw) {
3270		fprintf(stderr,
3271		"Looking up keyword for unknown type %d\n",
3272		type);
3273		abort();
3274		}
3275		tmpl.indent = "";
3276		tmpl.type = type;
3277		tmpl.numElements = 3;
3278		tmpl.elements =
3279		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3280		tmpl.elements[0].item = kw->key;
3281		tmpl.elements[0].indent = alloca(2);
3282		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3283		tmpl.elements[1].item = (char *)val;
3284		tmpl.elements[1].indent = alloca(2);
3285		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3286		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3287		strcpy(tmpl.elements[2].item, lineend);
3288		tmpl.elements[2].indent = "";
3289		} else {
3290		kw = getKeywordByType(type, cfi);
3291		if (!kw) {
3292		fprintf(stderr,
3293		"Looking up keyword for unknown type %d\n",
3294		type);
3295		abort();
3296		}
3297		tmpl.type = type;
3298		tmpl.numElements = val ? 2 : 1;
3299		tmpl.elements =
3300		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3301		tmpl.elements[0].item = kw->key;
3302		tmpl.elements[0].indent = alloca(2);
3303		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3304		if (val) {
3305		tmpl.elements[1].item = (char *)val;
3306		tmpl.elements[1].indent = "";
3307		}
3308	}	}
	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;
3309
3310	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3311	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3312	else	* which may not be ideal? If there are no lines or we are looking at
3313	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3314	} else {	* indented differently from the rest) */
3315	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3316	line->indent = strdup(defaultIndent);	if (line->numElements)
3317	line->next = NULL;	prev = line;
3318	}	/* fall back on the last line if prev isn't otherwise set */
3319		if (!line->next && !prev)
3320		prev = line;
3321		}
3322
3323		struct singleLine *menuEntry;
3324		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3325		if (tmpl.type == LT_ENTRY_END) {
3326		if (menuEntry)
3327		tmpl.indent = menuEntry->indent;
3328		else
3329		tmpl.indent = defaultIndent ? : "";
3330		} else if (tmpl.type != LT_MENUENTRY) {
3331		if (menuEntry)
3332		tmpl.indent = "\t";
3333		else if (prev == entry->lines)
3334		tmpl.indent = defaultIndent ? : "";
3335		else
3336		tmpl.indent = prev->indent;
3337		}
3338
3339	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3340	line->type = type;	}
3341	line->numElements = val ? 2 : 1;
3342	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3343	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3344	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3345	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
3346	line->elements[0].indent[1] = '\0';
3347		for (i = 0; i < line->numElements; i++) {
3348	if (val) {	free(line->elements[i].item);
3349	line->elements[1].item = val;	free(line->elements[i].indent);
3350	line->elements[1].indent = strdup("");	}
3351	}	free(line->elements);
3352	} else {	free(line->indent);
3353	/* we're doing the title of a bracketed title (zipl) */
3354	line->type = type;	if (line == entry->lines) {
3355	line->numElements = 1;	entry->lines = line->next;
3356	line->elements = malloc(sizeof(*line->elements) * line->numElements);	} else {
3357		prev = entry->lines;
3358	line->elements[0].item = malloc(strlen(val) + 3);	while (prev->next != line)
3359	sprintf(line->elements[0].item, "[%s]", val);	prev = prev->next;
3360	line->elements[0].indent = strdup("");	prev->next = line->next;
3361	}	}
3362
3363	return line;	free(line);
3364	}	}
3365
3366	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3367	struct singleLine * prev;	{
3368	int i;	struct singleLine newLine = {
3369		.indent = tmplLine->indent,
3370		.type = tmplLine->type,
3371		.next = tmplLine->next,
3372		};
3373		int firstQuotedItem = -1;
3374		int quoteLen = 0;
3375		int j;
3376		int element = 0;
3377		char *c;
3378
3379		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3380		strcpy(c, tmplLine->elements[0].item);
3381		insertElement(&newLine, c, element++, cfi);
3382		free(c);
3383		c = NULL;
3384
3385		for (j = 1; j < tmplLine->numElements; j++) {
3386		if (firstQuotedItem == -1) {
3387		quoteLen += strlen(tmplLine->elements[j].item);
3388
3389		if (isquote(tmplLine->elements[j].item[0])) {
3390		firstQuotedItem = j;
3391		quoteLen +=
3392		strlen(tmplLine->elements[j].indent);
3393		} else {
3394		c = malloc(quoteLen + 1);
3395		strcpy(c, tmplLine->elements[j].item);
3396		insertElement(&newLine, c, element++, cfi);
3397		free(c);
3398		quoteLen = 0;
3399		}
3400		} else {
3401		int itemlen = strlen(tmplLine->elements[j].item);
3402		quoteLen += itemlen;
3403		quoteLen += strlen(tmplLine->elements[j].indent);
3404
3405		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3406		c = malloc(quoteLen + 1);
3407		c[0] = '\0';
3408		for (int i = firstQuotedItem; i < j + 1; i++) {
3409		strcat(c, tmplLine->elements[i].item);
3410		strcat(c, tmplLine->elements[i].indent);
3411		}
3412		insertElement(&newLine, c, element++, cfi);
3413		free(c);
3414
3415		firstQuotedItem = -1;
3416		quoteLen = 0;
3417		}
3418		}
3419		}
3420		while (tmplLine->numElements)
3421		removeElement(tmplLine, 0);
3422		if (tmplLine->elements)
3423		free(tmplLine->elements);
3424
3425	for (i = 0; i < line->numElements; i++) {	tmplLine->numElements = newLine.numElements;
3426	free(line->elements[i].item);	tmplLine->elements = newLine.elements;
3427	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
3428
3429	if (line == entry->lines) {	static void insertElement(struct singleLine *line,
3430	entry->lines = line->next;	const char *item, int insertHere,
3431	} else {	struct configFileInfo *cfi)
3432	prev = entry->lines;	{
3433	while (prev->next != line) prev = prev->next;	struct keywordTypes *kw;
3434	prev->next = line->next;	char indent[2] = "";
3435	}
3436		/* sanity check */
3437		if (insertHere > line->numElements) {
3438		dbgPrintf
3439		("insertElement() adjusting insertHere from %d to %d\n",
3440		insertHere, line->numElements);
3441		insertHere = line->numElements;
3442		}
3443
3444		line->elements = realloc(line->elements, (line->numElements + 1) *
3445		sizeof(*line->elements));
3446		memmove(&line->elements[insertHere + 1],
3447		&line->elements[insertHere],
3448		(line->numElements - insertHere) * sizeof(*line->elements));
3449		line->elements[insertHere].item = strdup(item);
3450
3451		kw = getKeywordByType(line->type, cfi);
3452
3453		if (line->numElements == 0) {
3454		indent[0] = '\0';
3455		} else if (insertHere == 0) {
3456		indent[0] = kw->nextChar;
3457		} else if (kw->separatorChar != '\0') {
3458		indent[0] = kw->separatorChar;
3459		} else {
3460		indent[0] = ' ';
3461		}
3462
3463		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3464		/* move the end-of-line forward */
3465		line->elements[insertHere].indent =
3466		line->elements[insertHere - 1].indent;
3467		line->elements[insertHere - 1].indent = strdup(indent);
3468		} else {
3469		line->elements[insertHere].indent = strdup(indent);
3470		}
3471
3472		line->numElements++;
3473
3474	free(line);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3475		line->elements[0].item,
3476		line->elements[insertHere].item,
3477		line->elements[insertHere].indent, insertHere);
3478	}	}
3479
3480	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3481	char * first, * second;	{
3482	char * chptr;	int i;
3483
3484	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3485	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3486		return;
3487	chptr = strchr(first, '=');
3488	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3489		removeHere, line->elements[removeHere].item);
3490	chptr = strchr(second, '=');
3491	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3492
3493	return strcmp(first, second);	if (removeHere > 1) {
3494	}	/* previous argument gets this argument's post-indentation */
3495		free(line->elements[removeHere - 1].indent);
3496	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3497	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3498	const char * removeArgs, int multibootArgs) {	} else {
3499	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;
3500	}	}
	}
3501
3502	if (!removeArgs) {	/* now collapse the array, but don't bother to realloc smaller */
3503	oldArgs = malloc(sizeof(*oldArgs));	for (i = removeHere; i < line->numElements - 1; i++)
3504	*oldArgs = NULL;	line->elements[i] = line->elements[i + 1];
3505	} else {
3506	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	line->numElements--;
3507	fprintf(stderr,	}
3508	_("grubby: error separating arguments '%s'\n"), removeArgs);
3509	free(newArgs);	int argMatch(const char *one, const char *two)
3510	return 1;	{
3511		char *first, *second;
3512		char *chptr;
3513
3514		first = strcpy(alloca(strlen(one) + 1), one);
3515		second = strcpy(alloca(strlen(two) + 1), two);
3516
3517		chptr = strchr(first, '=');
3518		if (chptr)
3519		*chptr = '\0';
3520
3521		chptr = strchr(second, '=');
3522		if (chptr)
3523		*chptr = '\0';
3524
3525		return strcmp(first, second);
3526		}
3527
3528		int updateActualImage(struct grubConfig *cfg, const char *image,
3529		const char *prefix, const char *addArgs,
3530		const char *removeArgs, int multibootArgs)
3531		{
3532		struct singleEntry *entry;
3533		struct singleLine *line, *rootLine;
3534		int index = 0;
3535		int i, k;
3536		const char **newArgs, **oldArgs;
3537		const char **arg;
3538		int useKernelArgs, useRoot;
3539		int firstElement;
3540		int *usedElements;
3541		int doreplace;
3542
3543		if (!image)
3544		return 0;
3545
3546		if (!addArgs) {
3547		newArgs = malloc(sizeof(*newArgs));
3548		*newArgs = NULL;
3549		} else {
3550		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3551		fprintf(stderr,
3552		_("grubby: error separating arguments '%s'\n"),
3553		addArgs);
3554		return 1;
3555		}
3556	}	}
	}
3557
3558	for (i = 0; cfg->cfi->keywords[i].key; i++)	if (!removeArgs) {
3559	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	oldArgs = malloc(sizeof(*oldArgs));
3560		*oldArgs = NULL;
3561		} else {
3562		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3563		fprintf(stderr,
3564		_("grubby: error separating arguments '%s'\n"),
3565		removeArgs);
3566		free(newArgs);
3567		return 1;
3568		}
3569		}
3570
3571	if (cfg->cfi->keywords[i].key)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3572	useKernelArgs = 1;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3573
3574	for (i = 0; cfg->cfi->keywords[i].key; i++)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3575	if (cfg->cfi->keywords[i].type == LT_ROOT) break;	&& !multibootArgs);
3576
3577	if (cfg->cfi->keywords[i].key)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3578	useRoot = 1;
3579		if (multibootArgs && !entry->multiboot)
3580	k = 0;	continue;
3581	for (arg = newArgs; *arg; arg++)
3582	k++;	/* Determine where to put the args.  If this config supports
3583	usedArgs = calloc(k, sizeof(int));	* LT_KERNELARGS, use that.  Otherwise use
3584		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3585	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	*/
3586	index++;	if (useKernelArgs) {
3587		line = getLineByType(LT_KERNELARGS, entry->lines);
3588	line = entry->lines;	if (!line) {
3589	while (line && line->type != LT_KERNEL) line = line->next;	/* no LT_KERNELARGS, need to add it */
3590	if (!line) continue;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3591	firstElement = 2;	cfg->secondaryIndent, NULL);
3592		}
3593	if (entry->multiboot && !multibootArgs) {	firstElement = 1;
3594	/* first mb module line is the real kernel */
3595	while (line && line->type != LT_MBMODULE) line = line->next;	} else if (multibootArgs) {
3596	firstElement = 2;	line = getLineByType(LT_HYPER, entry->lines);
3597	} else if (useKernelArgs) {	if (!line) {
3598	while (line && line->type != LT_KERNELARGS) line = line->next;	/* a multiboot entry without LT_HYPER? */
3599	firstElement = 1;	continue;
3600	}	}
3601		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, '=');
3602
	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(" ");
3603	} else {	} else {
3604	/* First thing on this line; treat a bit differently. Note	line =
3605	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3606	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3607	line->elements[line->numElements].indent = strdup("");	entry->lines);
3608		if (!line) {
3609		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3610		continue;
3611		}
3612		firstElement = 2;
3613	}	}
3614
3615	line->numElements++;	/* handle the elilo case which does:
3616		*   append="hypervisor args -- kernel args"
3617		*/
3618		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3619		/* this is a multiboot entry, make sure there's
3620		* -- on the args line
3621		*/
3622		for (i = firstElement; i < line->numElements; i++) {
3623		if (!strcmp(line->elements[i].item, "--"))
3624		break;
3625		}
3626		if (i == line->numElements) {
3627		/* assume all existing args are kernel args,
3628		* prepend -- to make it official
3629		*/
3630		insertElement(line, "--", firstElement,
3631		cfg->cfi);
3632		i = firstElement;
3633		}
3634		if (!multibootArgs) {
3635		/* kernel args start after the -- */
3636		firstElement = i + 1;
3637		}
3638		} else if (cfg->cfi->mbConcatArgs) {
3639		/* this is a non-multiboot entry, remove hyper args */
3640		for (i = firstElement; i < line->numElements; i++) {
3641		if (!strcmp(line->elements[i].item, "--"))
3642		break;
3643		}
3644		if (i < line->numElements) {
3645		/* remove args up to -- */
3646		while (strcmp
3647		(line->elements[firstElement].item,
3648		"--"))
3649		removeElement(line, firstElement);
3650		/* remove -- */
3651		removeElement(line, firstElement);
3652		}
3653		}
3654
3655		usedElements = calloc(line->numElements, sizeof(*usedElements));
3656
3657	/* if we updated a root= here even though there is a	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3658	LT_ROOT available we need to remove the LT_ROOT entry
3659	(this will happen if we switch from a device to a label) */	doreplace = 1;
3660	if (useRoot && !strncmp(*arg, "root=", 5)) {	for (i = firstElement; i < line->numElements; i++) {
3661	rootLine = entry->lines;	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3662	while (rootLine && rootLine->type != LT_ROOT)	!strcmp(line->elements[i].item, "--")) {
3663	rootLine = rootLine->next;	/* reached the end of hyper args, insert here */
3664	if (rootLine) {	doreplace = 0;
3665	removeLine(entry, rootLine);	break;
3666	}	}
3667	}	if (usedElements[i])
3668	}	continue;
3669	k++;	if (!argMatch(line->elements[i].item, *arg)) {
3670	}	usedElements[i] = 1;
3671		break;
3672	free(usedElements);	}
3673		}
3674	/* no arguments to remove (i.e. no append line) */
3675	if (!line) continue;	if (i < line->numElements && doreplace) {
3676		/* direct replacement */
3677	/* this won't remove an LT_ROOT item properly (but then again,	free(line->elements[i].item);
3678	who cares? */	line->elements[i].item = strdup(*arg);
3679	for (arg = oldArgs; *arg; arg++) {
3680	for (i = firstElement; i < line->numElements; i++)	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3681	if (!argMatch(line->elements[i].item, *arg))	/* root= replacement */
3682	break;	rootLine = getLineByType(LT_ROOT, entry->lines);
3683		if (rootLine) {
3684	if (i < line->numElements) {	free(rootLine->elements[1].item);
3685	/* if this isn't the first argument the previous argument	rootLine->elements[1].item =
3686	gets this arguments post-indention */	strdup(*arg + 5);
3687	if (i > firstElement) {	} else {
3688	free(line->elements[i - 1].indent);	rootLine =
3689	line->elements[i - 1].indent = line->elements[i].indent;	addLine(entry, cfg->cfi, LT_ROOT,
3690		cfg->secondaryIndent,
3691		*arg + 5);
3692		}
3693		}
3694
3695		else {
3696		/* insert/append */
3697		insertElement(line, *arg, i, cfg->cfi);
3698		usedElements =
3699		realloc(usedElements,
3700		line->numElements *
3701		sizeof(*usedElements));
3702		memmove(&usedElements[i + 1], &usedElements[i],
3703		line->numElements - i - 1);
3704		usedElements[i] = 1;
3705
3706		/* if we updated a root= here even though
3707		* there is a LT_ROOT available we need to
3708		* remove the LT_ROOT entry (this will happen
3709		* if we switch from a device to a label) */
3710		if (useRoot && !strncmp(*arg, "root=", 5)) {
3711		rootLine =
3712		getLineByType(LT_ROOT,
3713		entry->lines);
3714		if (rootLine)
3715		removeLine(entry, rootLine);
3716		}
3717		}
3718	}	}
	free(line->elements[i].item);
3719
3720	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3721
3722	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3723	}	for (i = firstElement; i < line->numElements; i++) {
3724	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3725		!strcmp(line->elements[i].item, "--"))
3726		/* reached the end of hyper args, stop here */
3727		break;
3728		if (!argMatch(line->elements[i].item, *arg)) {
3729		removeElement(line, i);
3730		break;
3731		}
3732		}
3733		/* handle removing LT_ROOT line too */
3734		if (useRoot && !strncmp(*arg, "root=", 5)) {
3735		rootLine = getLineByType(LT_ROOT, entry->lines);
3736		if (rootLine)
3737		removeLine(entry, rootLine);
3738		}
3739		}
3740
3741	if (line->numElements == 1) {	if (line->numElements == 1) {
3742	/* 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
3743	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3744	removeLine(entry, line);	removeLine(entry, line);
3745		}
3746	}	}
	}
3747
3748	free(usedArgs);	free(newArgs);
3749	free(newArgs);	free(oldArgs);
	free(oldArgs);
3750
3751	return 0;	return 0;
3752	}	}
3753
3754	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3755	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3756	const char * removeArgs,	const char *removeArgs,
3757	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3758	int rc = 0;	{
3759		int rc = 0;
3760	if (!image) return rc;
3761		if (!image)
3762	/* update the main args first... */	return rc;
3763	if (addArgs || removeArgs)
3764	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3765	if (rc) return rc;	if (addArgs || removeArgs)
3766		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3767	/* and now any multiboot args */	0);
3768	if (addMBArgs || removeMBArgs)	if (rc)
3769	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3770	return rc;
3771	}	/* and now any multiboot args */
3772		if (addMBArgs || removeMBArgs)
3773	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3774	int fd;	removeMBArgs, 1);
3775	unsigned char bootSect[512];	return rc;
3776	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3777
3778	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3779	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3780	device, strerror(errno));	const char *title)
3781	return 1;	{
3782	}	struct singleEntry *entry;
3783	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3784		int index = 0;
3785
3786		if (!image)
3787		return 0;
3788
3789		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3790		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3791		if (!kernelLine)
3792		continue;
3793
3794		/* if title is supplied, the entry's title must match it. */
3795		if (title) {
3796		char *linetitle;
3797
3798		line =
3799		getLineByType(LT_TITLE | LT_MENUENTRY,
3800		entry->lines);
3801		if (!line)
3802		continue;
3803
3804		linetitle = extractTitle(cfg, line);
3805		if (!linetitle)
3806		continue;
3807		if (strcmp(title, linetitle)) {
3808		free(linetitle);
3809		continue;
3810		}
3811		free(linetitle);
3812		}
3813
3814	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3815	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3816	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3817		initrd += prefixLen;
3818		}
3819		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3820		if (endLine)
3821		removeLine(entry, endLine);
3822		line =
3823		addLine(entry, cfg->cfi,
3824		preferredLineType(LT_MBMODULE, cfg->cfi),
3825		kernelLine->indent, initrd);
3826		if (!line)
3827		return 1;
3828		if (endLine) {
3829		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3830		if (!line)
3831		return 1;
3832		}
3833
3834	if (boot[1] == 0xeb) {	break;
3835	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;
	}
3836
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3837	return 0;	return 0;
3838		}
3839
3840		int updateInitrd(struct grubConfig *cfg, const char *image,
3841		const char *prefix, const char *initrd, const char *title)
3842		{
3843		struct singleEntry *entry;
3844		struct singleLine *line, *kernelLine, *endLine = NULL;
3845		int index = 0;
3846
3847		if (!image)
3848		return 0;
3849
3850		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3851		kernelLine =
3852		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3853		entry->lines);
3854		if (!kernelLine)
3855		continue;
3856
3857		/* if title is supplied, the entry's title must match it. */
3858		if (title) {
3859		char *linetitle;
3860
3861		line =
3862		getLineByType(LT_TITLE | LT_MENUENTRY,
3863		entry->lines);
3864		if (!line)
3865		continue;
3866
3867		linetitle = extractTitle(cfg, line);
3868		if (!linetitle)
3869		continue;
3870		if (strcmp(title, linetitle)) {
3871		free(linetitle);
3872		continue;
3873		}
3874		free(linetitle);
3875		}
3876
3877		line =
3878		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3879		entry->lines);
3880		if (line)
3881		removeLine(entry, line);
3882		if (prefix) {
3883		int prefixLen = strlen(prefix);
3884		if (!strncmp(initrd, prefix, prefixLen))
3885		initrd += prefixLen;
3886		}
3887		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3888		if (endLine)
3889		removeLine(entry, endLine);
3890		enum lineType_e lt;
3891		switch (kernelLine->type) {
3892		case LT_KERNEL:
3893		lt = LT_INITRD;
3894		break;
3895		case LT_KERNEL_EFI:
3896		lt = LT_INITRD_EFI;
3897		break;
3898		case LT_KERNEL_16:
3899		lt = LT_INITRD_16;
3900		break;
3901		default:
3902		lt = preferredLineType(LT_INITRD, cfg->cfi);
3903		}
3904		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3905		if (!line)
3906		return 1;
3907		if (endLine) {
3908		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3909		if (!line)
3910		return 1;
3911		}
3912
3913		break;
3914		}
3915
3916	return 2;	return 0;
3917	}	}
3918
3919	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3920	int fd;	{
3921	char buf[65536];	int fd;
3922	char * end;	unsigned char bootSect[512];
3923	char * chptr;	int offset;
3924	char * chptr2;
3925	int rc;	fd = open(device, O_RDONLY);
3926		if (fd < 0) {
3927		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3928		device, strerror(errno));
3929		return 1;
3930		}
3931
3932	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (read(fd, bootSect, 512) != 512) {
3933	*raw* devices listed in there */	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3934		device, strerror(errno));
3935		return 1;
3936		}
3937		close(fd);
3938
3939		/* first three bytes should match, a jmp short should be in there */
3940		if (memcmp(boot, bootSect, 3))
3941		return 0;
3942
3943		if (boot[1] == JMP_SHORT_OPCODE) {
3944		offset = boot[2] + 2;
3945		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3946		offset = (boot[3] << 8) + boot[2] + 2;
3947		} else if (boot[0] == JMP_SHORT_OPCODE) {
3948		offset = boot[1] + 2;
3949		/*
3950		* it looks like grub, when copying stage1 into the mbr,
3951		* patches stage1 right after the JMP location, replacing
3952		* other instructions such as JMPs for NOOPs. So, relax the
3953		* check a little bit by skipping those different bytes.
3954		*/
3955		if ((bootSect[offset + 1] == NOOP_OPCODE)
3956		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3957		offset = offset + 3;
3958		}
3959		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3960		offset = (boot[2] << 8) + boot[1] + 2;
3961		} else {
3962		return 0;
3963		}
3964
3965	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3966	mdDev += 5;	return 0;
3967
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
3968	return 2;	return 2;
3969	}	}
3970
3971	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3972	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
3973	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
3974	strerror(errno));	char buf[65536];
3975		char *end;
3976		char *chptr;
3977		char *chptr2;
3978		int rc;
3979
3980		/* it's on raid; we need to parse /proc/mdstat and check all of the
3981		*raw* devices listed in there */
3982
3983		if (!strncmp(mdDev, "/dev/", 5))
3984		mdDev += 5;
3985
3986		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3987		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3988		strerror(errno));
3989		return 2;
3990		}
3991
3992		rc = read(fd, buf, sizeof(buf) - 1);
3993		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3994		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3995		strerror(errno));
3996		close(fd);
3997		return 2;
3998		}
3999	close(fd);	close(fd);
4000	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
4001
4002	chptr = buf;	chptr = buf;
4003	while (*chptr) {	while (*chptr) {
4004	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
4005	if (!end) break;	if (!end)
4006	*end = '\0';	break;
4007		*end = '\0';
4008
4009		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4010		chptr[strlen(mdDev)] == ' ') {
4011
4012		/* found the device */
4013		while (*chptr && *chptr != ':')
4014		chptr++;
4015		chptr++;
4016		while (*chptr && isspace(*chptr))
4017		chptr++;
4018
4019		/* skip the "active" bit */
4020		while (*chptr && !isspace(*chptr))
4021		chptr++;
4022		while (*chptr && isspace(*chptr))
4023		chptr++;
4024
4025		/* skip the raid level */
4026		while (*chptr && !isspace(*chptr))
4027		chptr++;
4028		while (*chptr && isspace(*chptr))
4029		chptr++;
4030
4031		/* everything else is partition stuff */
4032		while (*chptr) {
4033		chptr2 = chptr;
4034		while (*chptr2 && *chptr2 != '[')
4035		chptr2++;
4036		if (!*chptr2)
4037		break;
4038
4039		/* yank off the numbers at the end */
4040		chptr2--;
4041		while (isdigit(*chptr2) && chptr2 > chptr)
4042		chptr2--;
4043		chptr2++;
4044		*chptr2 = '\0';
4045
4046		/* Better, now we need the /dev/ back. We're
4047		* done with everything before this point, so
4048		* we can just put the /dev/ part there.
4049		* There will always be room. */
4050		memcpy(chptr - 5, "/dev/", 5);
4051		rc = checkDeviceBootloader(chptr - 5, boot);
4052		if (rc != 2) {
4053		return rc;
4054		}
4055
4056		chptr = chptr2 + 1;
4057		/* skip the [11] bit */
4058		while (*chptr && !isspace(*chptr))
4059		chptr++;
4060		/* and move to the next one */
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063		}
4064
4065	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
4066	chptr[strlen(mdDev)] == ' ') {	return 2;
4067		}
4068
4069	/* found the device */	chptr = end + 1;
4070	while (*chptr && *chptr != ':') chptr++;	}
4071	chptr++;
4072	while (*chptr && isspace(*chptr)) chptr++;	fprintf(stderr,
4073		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4074	/* skip the "active" bit */	mdDev);
4075	while (*chptr && !isspace(*chptr)) chptr++;	return 0;
4076	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++;
	}
4077
4078	/*  we're good to go */	int checkForLilo(struct grubConfig *config)
4079	return 2;	{
4080		int fd;
4081		unsigned char boot[512];
4082		struct singleLine *line;
4083
4084		for (line = config->theLines; line; line = line->next)
4085		if (line->type == LT_BOOT)
4086		break;
4087
4088		if (!line) {
4089		fprintf(stderr,
4090		_
4091		("grubby: no boot line found in lilo configuration\n"));
4092		return 1;
4093	}	}
4094
4095	chptr = end + 1;	if (line->numElements != 2)
4096	}	return 1;
4097
4098	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4099	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4100	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4101	return 0;	"/boot/boot.b", strerror(errno));
4102	}	return 1;
4103		}
4104
4105	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4106	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4107	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4108	struct singleLine * line;	return 1;
4109		}
4110	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;
	}
4111
4112	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4113		return checkLiloOnRaid(line->elements[1].item, boot);
4114
4115	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4116	if (fd < 0) {	}
4117	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4118	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4119	return 1;	{
4120	}	if (!access("/etc/grub.d/", R_OK))
4121		return 2;
4122
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4123	return 1;	return 1;
4124	}	}
	close(fd);
4125
4126	if (!strncmp("/dev/md", line->elements[1].item, 7))	int checkForGrub(struct grubConfig *config)
4127	return checkLiloOnRaid(line->elements[1].item, boot);	{
4128		int fd;
4129		unsigned char bootSect[512];
4130		char *boot;
4131		int onSuse = isSuseSystem();
4132
4133		if (onSuse) {
4134		if (parseSuseGrubConf(NULL, &boot))
4135		return 0;
4136		} else {
4137		if (parseSysconfigGrub(NULL, &boot))
4138		return 0;
4139		}
4140
4141		/* assume grub is not installed -- not an error condition */
4142		if (!boot)
4143		return 0;
4144
4145		fd = open("/boot/grub/stage1", O_RDONLY);
4146		if (fd < 0)
4147		/* this doesn't exist if grub hasn't been installed */
4148		return 0;
4149
4150		if (read(fd, bootSect, 512) != 512) {
4151		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4152		"/boot/grub/stage1", strerror(errno));
4153		close(fd);
4154		return 1;
4155		}
4156		close(fd);
4157
4158	return checkDeviceBootloader(line->elements[1].item, boot);	/* The more elaborate checks do not work on SuSE. The checks done
4159		* seem to be reasonble (at least for now), so just return success
4160		*/
4161		if (onSuse)
4162		return 2;
4163
4164		return checkDeviceBootloader(boot, bootSect);
4165	}	}
4166
4167	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4168	int fd;	{
4169	unsigned char bootSect[512];	int fd;
4170	char * boot;	unsigned char bootSect[512];
4171		char *boot;
4172		char executable[] = "/boot/extlinux/extlinux";
4173
4174		printf("entered: checkForExtLinux()\n");
4175
4176		if (parseSysconfigGrub(NULL, &boot))
4177		return 0;
4178
4179		/* assume grub is not installed -- not an error condition */
4180		if (!boot)
4181		return 0;
4182
4183		fd = open(executable, O_RDONLY);
4184		if (fd < 0)
4185		/* this doesn't exist if grub hasn't been installed */
4186		return 0;
4187
4188		if (read(fd, bootSect, 512) != 512) {
4189		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4190		executable, strerror(errno));
4191		return 1;
4192		}
4193		close(fd);
4194
4195	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4196	return 0;	}
4197
4198	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4199	if (!boot)	{
4200	return 0;	/*
4201		* This is a simplistic check that we consider good enough for own puporses
4202		*
4203		* If we were to properly check if yaboot is *installed* we'd need to:
4204		* 1) get the system boot device (LT_BOOT)
4205		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4206		*    the content on the boot device
4207		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4208		* 4) check again if binary and boot device contents match
4209		*/
4210		if (!access("/etc/yaboot.conf", R_OK))
4211		return 2;
4212
4213	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4214	if (fd < 0)	}
4215	/* this doesn't exist if grub hasn't been installed */
4216	return 0;	int checkForElilo(struct grubConfig *config)
4217		{
4218		if (!access("/etc/elilo.conf", R_OK))
4219		return 2;
4220
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4221	return 1;	return 1;
4222	}	}
	close(fd);
4223
4224	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4225		{
4226		char *idx, *rootspec = NULL;
4227
4228		if (*str == '(') {
4229		idx = rootspec = strdup(str);
4230		while (*idx && (*idx != ')') && (!isspace(*idx)))
4231		idx++;
4232		*(++idx) = '\0';
4233		}
4234		return rootspec;
4235	}	}
4236
4237	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4238	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4239		const char *newKernelInitrd,
4240		const char **extraInitrds, int extraInitrdCount)
4241		{
4242		char *initrdVal, *end;
4243		int i;
4244		size_t totalSize;
4245		size_t prefixLen;
4246		char separatorChar;
4247
4248		prefixLen = strlen(prefix);
4249		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4250
4251		for (i = 0; i < extraInitrdCount; i++) {
4252		totalSize += sizeof(separatorChar);
4253		totalSize += strlen(extraInitrds[i]) - prefixLen;
4254		}
4255
4256		initrdVal = end = malloc(totalSize);
4257
4258		end = stpcpy(end, newKernelInitrd + prefixLen);
4259
4260		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4261		for (i = 0; i < extraInitrdCount; i++) {
4262		const char *extraInitrd;
4263		int j;
4264
4265		extraInitrd = extraInitrds[i] + prefixLen;
4266		/* Don't add entries that are already there */
4267		if (tmplLine != NULL) {
4268		for (j = 2; j < tmplLine->numElements; j++)
4269		if (strcmp
4270		(extraInitrd,
4271		tmplLine->elements[j].item) == 0)
4272		break;
4273
4274	if (*str == '(') {	if (j != tmplLine->numElements)
4275	idx = rootspec = strdup(str);	continue;
4276	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4277	*(++idx) = '\0';
4278	}	*end++ = separatorChar;
4279	return rootspec;	end = stpcpy(end, extraInitrd);
4280		}
4281
4282		return initrdVal;
4283	}	}
4284
4285	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4286	const char * prefix,	const char *prefix,
4287	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4288	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4289	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4290	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4291	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4292	int needs;	{
4293	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4294	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4295	char * chptr;	int needs;
4296	int i;	char *indexs;
4297	enum lineType_e type;	char *chptr;
4298		int rc;
4299	if (!newKernelPath) return 0;
4300		if (!newKernelPath)
4301	/* if the newKernelTitle is too long silently munge it into something	return 0;
4302	* we can live with. truncating is first check, then we'll just mess with
4303	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4304	if (config->cfi->maxTitleLength &&	if (rc < 0)
4305		return 1;
4306
4307		/* if the newKernelTitle is too long silently munge it into something
4308		* we can live with. truncating is first check, then we'll just mess with
4309		* it until it looks better */
4310		if (config->cfi->maxTitleLength &&
4311	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4312	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4313	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4314	int i = 1;	int i = 1;
4315
4316		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4317		newKernelTitle);
4318		while (findEntryByPath(config, buf, NULL, NULL)) {
4319		sprintf(numBuf, "%d", i++);
4320		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4321		}
4322
4323	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);
4324	}	}
4325
4326	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4327	}	new->skip = 0;
4328		new->multiboot = 0;
4329		new->lines = NULL;
4330		entry = config->entries;
4331		for (unsigned int i = 0; i < newIndex; i++) {
4332		if (!entry)
4333		break;
4334		prev = entry;
4335		entry = entry->next;
4336		}
4337		new->next = entry;
4338
4339	new = malloc(sizeof(*new));	if (prev)
4340	new->skip = 0;	prev->next = new;
4341	new->multiboot = 0;	else
4342	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;
	}
4343
4344	if (template) {	/* copy/update from the template */
4345	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4346	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4347	if (tmplLine->numElements)	needs |= NEED_INITRD;
4348	indent = tmplLine->indent;	if (newMBKernel) {
4349		needs |= NEED_MB;
4350	/* skip comments */	new->multiboot = 1;
4351	chptr = tmplLine->indent;	}
4352	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4353	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4354
4355	/* we don't need an initrd here */	if (template) {
4356	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4357		masterLine && (tmplLine = lineDup(masterLine));
4358	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4359	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4360	struct singleLine *l;	tmplLine->type);
4361	needs &= ~ KERNEL_MB;
4362		/* skip comments */
4363	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4364	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4365	newMBKernel + strlen(prefix));	chptr++;
4366		if (*chptr == '#')
4367	tmplLine = lastLine;	continue;
4368	if (!new->lines) {
4369	new->lines = l;	if (iskernel(tmplLine->type)
4370	} else {	&& tmplLine->numElements >= 2) {
4371	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4372	newLine = l;	/* it's not a multiboot template and
4373	}	* this is the kernel line.  Try to
4374	continue;	* be intelligent about inserting the
4375	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4376	template->multiboot && !new->multiboot) {	*/
4377	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4378	}	/* insert the hypervisor first */
4379		newLine =
4380	if (!new->lines) {	addLine(new, config->cfi,
4381	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4382	new->lines = newLine;	tmplLine->indent,
4383	} else {	newMBKernel +
4384	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4385	newLine = newLine->next;	/* set up for adding the
4386	}	* kernel line */
4387		free(tmplLine->indent);
4388		tmplLine->indent =
4389	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4390	newLine->next = NULL;	secondaryIndent);
4391	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4392	newLine->numElements = tmplLine->numElements;	}
4393	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4394	newLine->numElements);	/* use addLineTmpl to
4395	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4396	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4397	newLine->elements[i].indent =	* call addLine.
4398	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4399	}	* making some changes to the
4400		* template such as the
4401	lastLine = tmplLine;	* indent change above and
4402	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4403	char * repl;	*/
4404	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4405	needs &= ~KERNEL_KERNEL;	getKeywordByType
4406	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4407	} else {	if (mbm_kw) {
4408	needs &= ~KERNEL_MB;	tmplLine->type =
4409	repl = newMBKernel;	LT_MBMODULE;
4410	}	free(tmplLine->
4411	if (new->multiboot && !template->multiboot) {	elements[0].item);
4412	free(newLine->elements[0].item);	tmplLine->elements[0].
4413	newLine->elements[0].item = strdup("module");	item =
4414	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4415	}	}
4416	free(newLine->elements[1].item);	newLine =
4417	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4418	if (rootspec != NULL) {	newLine,
4419	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4420	rootspec,	strlen(prefix),
4421	repl +	config->cfi);
4422	strlen(prefix));	needs &= ~NEED_KERNEL;
4423	} else {	}
4424	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4425	strlen(prefix));	newLine =
4426	}	addLine(new, config->cfi,
4427	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4428	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4429	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4430	if (!new->multiboot && template->multiboot) {	newMBKernel +
4431	free(newLine->elements[0].item);	strlen(prefix));
4432	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4433	newLine->type = LT_KERNEL;	}
4434	}	} else if (needs & NEED_KERNEL) {
4435	free(newLine->elements[1].item);	newLine =
4436	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4437	if (rootspec != NULL) {	newKernelPath +
4438	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4439	rootspec,	config->cfi);
4440	newKernelPath +	needs &= ~NEED_KERNEL;
4441	strlen(prefix));	}
4442	} else {
4443	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4444	strlen(prefix));	tmplLine->numElements >= 2) {
4445	}	if (needs & NEED_MB) {
4446	} else if (tmplLine->type == LT_INITRD &&	newLine =
4447	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4448	needs &= ~KERNEL_INITRD;	newMBKernel +
4449	free(newLine->elements[1].item);	strlen(prefix),
4450	if (new->multiboot && !template->multiboot) {	config->cfi);
4451	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4452	newLine->elements[0].item = strdup("module");	}
4453	newLine->type = LT_MBMODULE;
4454	}	} else if (tmplLine->type == LT_MBMODULE &&
4455	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4456	if (rootspec != NULL) {	if (new->multiboot) {
4457	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4458	rootspec,	newLine =
4459	newKernelInitrd +	addLineTmpl(new, tmplLine,
4460	strlen(prefix));	newLine,
4461	} else {	newKernelPath +
4462	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4463	strlen(prefix));	config->cfi);
4464	}	needs &= ~NEED_KERNEL;
4465	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4466	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4467	needs &= ~KERNEL_INITRD;	char *initrdVal;
4468	if (!new->multiboot && template->multiboot) {	initrdVal =
4469	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4470	newLine->elements[0].item = strdup("initrd");	tmplLine,
4471	newLine->type = LT_INITRD;	newKernelInitrd,
4472	}	extraInitrds,
4473	free(newLine->elements[1].item);	extraInitrdCount);
4474	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4475	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4476	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4477	rootspec,	initrdVal,
4478	newKernelInitrd +	config->cfi);
4479	strlen(prefix));	free(initrdVal);
4480	} else {	needs &= ~NEED_INITRD;
4481	newLine->elements[1].item = strdup(newKernelInitrd +	}
4482	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4483	}	/* template is multi but new is not,
4484	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4485	tmplLine->numElements >= 2) {	* module slot
4486	needs &= ~KERNEL_TITLE;	*/
4487		tmplLine->type =
4488	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4489	free(newLine->elements[i].item);	config->cfi);
4490	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4491	}	tmplLine->elements[0].item =
4492		strdup(getKeywordByType
4493	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4494	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4495	newLine->numElements = 2;	newLine =
4496	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4497	config->cfi->titleBracketed &&	newKernelPath +
4498	tmplLine->numElements == 1) {	strlen(prefix),
4499	needs &= ~KERNEL_TITLE;	config->cfi);
4500	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4501	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4502	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4503	newLine->numElements);	/* template is multi but new is not,
4504		* insert the initrd in the second
4505	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4506	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4507	newLine->elements[0].indent = strdup("");	tmplLine->type =
4508	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4509	}	config->cfi);
4510	}	free(tmplLine->elements[0].item);
4511	} else {	tmplLine->elements[0].item =
4512	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4513	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4514	break;	config->cfi)->key);
4515	}	initrdVal =
4516		getInitrdVal(config, prefix,
4517		tmplLine,
4518		newKernelInitrd,
4519		extraInitrds,
4520		extraInitrdCount);
4521		newLine =
4522		addLineTmpl(new, tmplLine, newLine,
4523		initrdVal, config->cfi);
4524		free(initrdVal);
4525		needs &= ~NEED_INITRD;
4526		}
4527
4528		} else if (isinitrd(tmplLine->type)
4529		&& tmplLine->numElements >= 2) {
4530		if (needs & NEED_INITRD && new->multiboot
4531		&& !template->multiboot
4532		&& config->cfi->mbInitRdIsModule) {
4533		/* make sure we don't insert the
4534		* module initrd before the module
4535		* kernel... if we don't do it here,
4536		* it will be inserted following the
4537		* template.
4538		*/
4539		if (!needs & NEED_KERNEL) {
4540		char *initrdVal;
4541
4542		initrdVal =
4543		getInitrdVal(config, prefix,
4544		tmplLine,
4545		newKernelInitrd,
4546		extraInitrds,
4547		extraInitrdCount);
4548		newLine =
4549		addLine(new, config->cfi,
4550		LT_MBMODULE,
4551		config->
4552		secondaryIndent,
4553		initrdVal);
4554		free(initrdVal);
4555		needs &= ~NEED_INITRD;
4556		}
4557		} else if (needs & NEED_INITRD) {
4558		char *initrdVal;
4559		initrdVal =
4560		getInitrdVal(config, prefix,
4561		tmplLine,
4562		newKernelInitrd,
4563		extraInitrds,
4564		extraInitrdCount);
4565		newLine =
4566		addLineTmpl(new, tmplLine, newLine,
4567		initrdVal, config->cfi);
4568		free(initrdVal);
4569		needs &= ~NEED_INITRD;
4570		}
4571
4572		} else if (tmplLine->type == LT_MENUENTRY &&
4573		(needs & NEED_TITLE)) {
4574		requote(tmplLine, config->cfi);
4575		char *nkt = malloc(strlen(newKernelTitle) + 3);
4576		strcpy(nkt, "'");
4577		strcat(nkt, newKernelTitle);
4578		strcat(nkt, "'");
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, nkt,
4581		config->cfi);
4582		free(nkt);
4583		needs &= ~NEED_TITLE;
4584		} else if (tmplLine->type == LT_TITLE &&
4585		(needs & NEED_TITLE)) {
4586		if (tmplLine->numElements >= 2) {
4587		newLine =
4588		addLineTmpl(new, tmplLine, newLine,
4589		newKernelTitle,
4590		config->cfi);
4591		needs &= ~NEED_TITLE;
4592		} else if (tmplLine->numElements == 1 &&
4593		config->cfi->titleBracketed) {
4594		/* addLineTmpl doesn't handle
4595		* titleBracketed */
4596		newLine =
4597		addLine(new, config->cfi, LT_TITLE,
4598		tmplLine->indent,
4599		newKernelTitle);
4600		needs &= ~NEED_TITLE;
4601		}
4602		} else if (tmplLine->type == LT_ECHO) {
4603		requote(tmplLine, config->cfi);
4604		static const char *prefix = "'Loading ";
4605		if (tmplLine->numElements > 1 &&
4606		strstr(tmplLine->elements[1].item, prefix)
4607		&& masterLine->next
4608		&& iskernel(masterLine->next->type)) {
4609		char *newTitle =
4610		malloc(strlen(prefix) +
4611		strlen(newKernelTitle) + 2);
4612
4613		strcpy(newTitle, prefix);
4614		strcat(newTitle, newKernelTitle);
4615		strcat(newTitle, "'");
4616		newLine =
4617		addLine(new, config->cfi, LT_ECHO,
4618		tmplLine->indent, newTitle);
4619		free(newTitle);
4620		} else {
4621		/* pass through other lines from the
4622		* template */
4623		newLine =
4624		addLineTmpl(new, tmplLine, newLine,
4625		NULL, config->cfi);
4626		}
4627		} else if (tmplLine->type == LT_DEVTREE &&
4628		tmplLine->numElements == 2
4629		&& newDevTreePath) {
4630		newLine =
4631		addLineTmpl(new, tmplLine, newLine,
4632		newDevTreePath + strlen(prefix),
4633		config->cfi);
4634		needs &= ~NEED_DEVTREE;
4635		} else if (tmplLine->type == LT_ENTRY_END
4636		&& needs & NEED_DEVTREE) {
4637		const char *ndtp = newDevTreePath;
4638		if (!strncmp
4639		(newDevTreePath, prefix, strlen(prefix)))
4640		ndtp += strlen(prefix);
4641		newLine = addLine(new, config->cfi, LT_DEVTREE,
4642		config->secondaryIndent,
4643		ndtp);
4644		needs &= ~NEED_DEVTREE;
4645		newLine =
4646		addLineTmpl(new, tmplLine, newLine, NULL,
4647		config->cfi);
4648		} else {
4649		/* pass through other lines from the template */
4650		newLine =
4651		addLineTmpl(new, tmplLine, newLine, NULL,
4652		config->cfi);
4653		}
4654		}
4655
4656	switch (config->cfi->keywords[i].type) {	} else {
4657	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4658	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4659	type = LT_KERNEL; break;	*/
4660	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4661	type = LT_TITLE; break;	case LT_KERNEL:
4662	default:	case LT_KERNEL_EFI:
4663	/* zipl strikes again */	case LT_KERNEL_16:
4664	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4665	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4666	chptr = newKernelTitle;	} else {
4667	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4668	break;	preferredLineType(LT_KERNEL,
4669	} else {	config->
4670	abort();	cfi),
4671	}	config->primaryIndent,
4672	}	newKernelPath +
4673		strlen(prefix));
4674	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	needs &= ~NEED_KERNEL;
4675	new->lines = newLine;	break;
4676	}	}
4677
4678	if (new->multiboot) {	case LT_HYPER:
4679	if (needs & KERNEL_MB)	newLine = addLine(new, config->cfi, LT_HYPER,
4680	newLine = addLine(new, config->cfi, LT_KERNEL,	config->primaryIndent,
4681	config->secondaryIndent,	newMBKernel + strlen(prefix));
4682	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4683	if (needs & KERNEL_KERNEL)	break;
4684	newLine = addLine(new, config->cfi, LT_MBMODULE,
4685	config->secondaryIndent,	case LT_MENUENTRY:{
4686	newKernelPath + strlen(prefix));	char *nkt = malloc(strlen(newKernelTitle) + 3);
4687	/* don't need to check for title as it's guaranteed to have been	strcpy(nkt, "'");
4688	* done as we only do multiboot with grub which uses title as	strcat(nkt, newKernelTitle);
4689	* a separator */	strcat(nkt, "'");
4690	if (needs & KERNEL_INITRD && newKernelInitrd)	newLine =
4691	newLine = addLine(new, config->cfi, LT_MBMODULE,	addLine(new, config->cfi, LT_MENUENTRY,
4692	config->secondaryIndent,	config->primaryIndent, nkt);
4693	newKernelInitrd + strlen(prefix));	free(nkt);
4694	} else {	needs &= ~NEED_TITLE;
4695	if (needs & KERNEL_KERNEL)	needs |= NEED_END;
4696	newLine = addLine(new, config->cfi, LT_KERNEL,	break;
4697	config->secondaryIndent,	}
4698	newKernelPath + strlen(prefix));	case LT_TITLE:
4699	if (needs & KERNEL_TITLE)	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4700	newLine = addLine(new, config->cfi, LT_TITLE,	char *templabel;
4701	config->secondaryIndent,	int x = 0, y = 0;
4702	newKernelTitle);
4703	if (needs & KERNEL_INITRD && newKernelInitrd)	templabel = strdup(newKernelTitle);
4704	newLine = addLine(new, config->cfi, LT_INITRD,	while (templabel[x]) {
4705	config->secondaryIndent,	if (templabel[x] == ' ') {
4706	newKernelInitrd + strlen(prefix));	y = x;
4707	}	while (templabel[y]) {
4708		templabel[y] =
4709		templabel[y + 1];
4710		y++;
4711		}
4712		}
4713		x++;
4714		}
4715		newLine = addLine(new, config->cfi, LT_TITLE,
4716		config->primaryIndent,
4717		templabel);
4718		free(templabel);
4719		} else {
4720		newLine = addLine(new, config->cfi, LT_TITLE,
4721		config->primaryIndent,
4722		newKernelTitle);
4723		}
4724		needs &= ~NEED_TITLE;
4725		break;
4726
4727	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	default:
4728	newMBKernelArgs, NULL)) return 1;	abort();
4729		}
4730		}
4731
4732	return 0;	struct singleLine *endLine = NULL;
4733		endLine = getLineByType(LT_ENTRY_END, new->lines);
4734		if (endLine) {
4735		removeLine(new, endLine);
4736		needs |= NEED_END;
4737		}
4738
4739		/* add the remainder of the lines, i.e. those that either
4740		* weren't present in the template, or in the case of no template,
4741		* all the lines following the entryStart.
4742		*/
4743		if (needs & NEED_TITLE) {
4744		newLine = addLine(new, config->cfi, LT_TITLE,
4745		config->secondaryIndent, newKernelTitle);
4746		needs &= ~NEED_TITLE;
4747		}
4748		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4749		newLine = addLine(new, config->cfi, LT_HYPER,
4750		config->secondaryIndent,
4751		newMBKernel + strlen(prefix));
4752		needs &= ~NEED_MB;
4753		}
4754		if (needs & NEED_KERNEL) {
4755		newLine = addLine(new, config->cfi,
4756		(new->multiboot
4757		&& getKeywordByType(LT_MBMODULE,
4758		config->cfi))
4759		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4760		config->
4761		cfi),
4762		config->secondaryIndent,
4763		newKernelPath + strlen(prefix));
4764		needs &= ~NEED_KERNEL;
4765		}
4766		if (needs & NEED_MB) {
4767		newLine = addLine(new, config->cfi, LT_HYPER,
4768		config->secondaryIndent,
4769		newMBKernel + strlen(prefix));
4770		needs &= ~NEED_MB;
4771		}
4772		if (needs & NEED_INITRD) {
4773		char *initrdVal;
4774		initrdVal =
4775		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4776		extraInitrds, extraInitrdCount);
4777		newLine =
4778		addLine(new, config->cfi,
4779		(new->multiboot
4780		&& getKeywordByType(LT_MBMODULE, config->cfi))
4781		? LT_MBMODULE : preferredLineType(LT_INITRD,
4782		config->cfi),
4783		config->secondaryIndent, initrdVal);
4784		free(initrdVal);
4785		needs &= ~NEED_INITRD;
4786		}
4787		if (needs & NEED_DEVTREE) {
4788		newLine = addLine(new, config->cfi, LT_DEVTREE,
4789		config->secondaryIndent, newDevTreePath);
4790		needs &= ~NEED_DEVTREE;
4791		}
4792
4793		/* NEEDS_END must be last on bootloaders that need it... */
4794		if (needs & NEED_END) {
4795		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4796		config->secondaryIndent, NULL);
4797		needs &= ~NEED_END;
4798		}
4799
4800		if (needs) {
4801		printf(_("grubby: needs=%d, aborting\n"), needs);
4802		abort();
4803		}
4804
4805		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4806		newMBKernelArgs, NULL)) {
4807		config->isModified = 1;
4808		return 1;
4809		}
4810
4811		return 0;
4812	}	}
4813
4814	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4815	poptContext optCon;	{
4816	char * grubConfig = NULL;	poptContext optCon;
4817	char * outputFile = NULL;	const char *grubConfig = NULL;
4818	int arg = 0;	char *outputFile = NULL;
4819	int flags = 0;	int arg = 0;
4820	int badImageOkay = 0;	int flags = 0;
4821	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4822	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4823	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4824	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4825	char * newKernelPath = NULL;	int configureExtLinux = 0;
4826	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4827	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4828	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4829	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4830	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4831	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4832	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4833	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4834	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4835	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4836	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4837	char * removeArgs = NULL;	int newIndex = 0;
4838	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4839	const char * chptr = NULL;	char *removeMBKernel = NULL;
4840	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4841	struct grubConfig * config;	char *defaultKernel = NULL;
4842	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4843	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4844	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4845	struct poptOption options[] = {	char *envPath = NULL;
4846	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4847	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4848	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4849	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4850	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4851	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4852	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4853	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4854	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4855	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4856	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4857	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4858	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4859	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4860	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4861	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4862	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4863	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4864	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4865		"new arguments for multiboot kernel being updated"), NULL},
4866		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4867		_
4868		("don't sanity check images in boot entries (for testing only)"),
4869		NULL},
4870		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4871		_
4872		("filesystem which contains /boot directory (for testing only)"),
4873		_("bootfs")},
4874		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4875		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4876		_("check which bootloader is installed on boot sector")},
4877	#endif	#endif
4878	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4879	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4880	_("path") },	_("path")},
4881	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4882	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4883	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4884	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4885	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4886	"template"), NULL },	"template"), NULL},
4887	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4888	_("display the path of the default kernel") },	_("print debugging information for failures")},
4889	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4890	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4891	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4892	_("configure grub bootloader") },	_("display the index of the default kernel")},
4893	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4894	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4895	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4896	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4897	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4899	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4900	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4901	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4902	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4903	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4904	_("path") },	_("path for environment data"),
4905	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4906	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4907	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4908	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4909	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4910	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4911	_("kernel-path") },	_("configure grub2 bootloader")},
4912	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4913	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4914	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4915	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4916	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4917	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4918	_("configure silo bootloader") },	_
4919	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4920	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4921	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4922	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4923	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4924	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4925	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4926	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4927	_("configure yaboot bootloader") },	_("path")},
4928	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4929	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4930	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4931	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4932	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4933		_("remove all entries for the specified kernel"),
4934	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4935	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4936		_("remove all entries for the specified multiboot kernel"),
4937	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4938	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4939	case 'v':	_("make the first entry referencing the specified kernel "
4940	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
4941	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4942	break;	_("make the given entry index the default entry"),
4943		_("entry-index")},
4944		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4945		_("use the given index when creating a new entry"),
4946		_("entry-index")},
4947		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4948		_("configure silo bootloader")},
4949		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4950		_("title to use for the new kernel entry"), _("entry-title")},
4951		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4952		_("updated information for the specified kernel"),
4953		_("kernel-path")},
4954		{"version", 'v', 0, NULL, 'v',
4955		_("print the version of this program and exit"), NULL},
4956		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4957		_("configure yaboot bootloader")},
4958		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4959		_("configure zipl bootloader")},
4960		POPT_AUTOHELP {0, 0, 0, 0, 0}
4961		};
4962
4963		useextlinuxmenu = 0;
4964
4965		int i = 0;
4966		for (int j = 1; j < argc; j++)
4967		i += strlen(argv[j]) + 1;
4968		saved_command_line = malloc(i);
4969		if (!saved_command_line) {
4970		fprintf(stderr, "grubby: %m\n");
4971		exit(1);
4972		}
4973		saved_command_line[0] = '\0';
4974		for (int j = 1; j < argc; j++) {
4975		strcat(saved_command_line, argv[j]);
4976		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4977		}
4978
4979		optCon = poptGetContext("grubby", argc, argv, options, 0);
4980		poptReadDefaultConfig(optCon, 1);
4981
4982		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4983		switch (arg) {
4984		case 'v':
4985		printf("grubby version %s\n", VERSION);
4986		exit(0);
4987		break;
4988		case 'i':
4989		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4990		extraInitrds[extraInitrdCount++] =
4991		strdup(poptGetOptArg(optCon));
4992		} else {
4993		fprintf(stderr,
4994		_
4995		("grubby: extra initrd maximum is %d\n"),
4996		extraInitrdCount);
4997		return 1;
4998		}
4999		break;
5000		}
5001	}	}
	}
5002
5003	if (arg < -1) {	if (arg < -1) {
5004	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5005	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5006	poptStrerror(arg));	poptStrerror(arg));
5007	return 1;	return 1;
5008	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5009
5010	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5011	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5012	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
5013	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;
	}
5014
5015	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5016	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
5017	cfi = &eliloConfigType;	configureExtLinux) > 1) {
5018	#elif __powerpc__	fprintf(stderr,
5019	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
5020	#elif __sparc__	return 1;
5021	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
5022	#elif __s390__	fprintf(stderr,
5023	cfi = &ziplConfigType;	_
5024	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
5025	cfi = &ziplConfigtype;	return 1;
5026	#else	} else if (configureGrub2) {
5027	cfi = &grubConfigType;	cfi = &grub2ConfigType;
5028	#endif	if (envPath)
5029	}	cfi->envFile = envPath;
5030		} else if (configureLilo) {
5031		cfi = &liloConfigType;
5032		} else if (configureGrub) {
5033		cfi = &grubConfigType;
5034		} else if (configureELilo) {
5035		cfi = &eliloConfigType;
5036		} else if (configureYaboot) {
5037		cfi = &yabootConfigType;
5038		} else if (configureSilo) {
5039		cfi = &siloConfigType;
5040		} else if (configureZipl) {
5041		cfi = &ziplConfigType;
5042		} else if (configureExtLinux) {
5043		cfi = &extlinuxConfigType;
5044		useextlinuxmenu = 1;
5045		}
5046
5047		if (!cfi) {
5048		if (grub2FindConfig(&grub2ConfigType)) {
5049		cfi = &grub2ConfigType;
5050		if (envPath)
5051		cfi->envFile = envPath;
5052		} else
5053		#ifdef __ia64__
5054		cfi = &eliloConfigType;
5055		#elif __powerpc__
5056		cfi = &yabootConfigType;
5057		#elif __sparc__
5058		cfi = &siloConfigType;
5059		#elif __s390__
5060		cfi = &ziplConfigType;
5061		#elif __s390x__
5062		cfi = &ziplConfigtype;
5063		#else
5064		cfi = &grubConfigType;
5065		#endif
5066		}
5067
5068	if (!grubConfig)	if (!grubConfig) {
5069	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
5070		grubConfig = cfi->findConfig(cfi);
5071		if (!grubConfig)
5072		grubConfig = cfi->defaultConfig;
5073		}
5074
5075	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5076	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5077	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5078	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5079		|| (defaultIndex >= 0))) {
5080		fprintf(stderr,
5081		_("grubby: --bootloader-probe may not be used with "
5082	"specified option"));	"specified option"));
5083	return 1;	return 1;
5084	}	}
5085
5086	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5087	removeKernelPath)) {	removeKernelPath)) {
5088	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5089	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5090	return 1;	return 1;
5091	}	}
5092
5093	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5094	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5095	return 1;	return 1;
5096	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5097	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5098	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5099	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5100	return 1;	return 1;
5101	}	}
5102
5103	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5104	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5105	"not be used together"));	"not be used together"));
5106	return 1;	return 1;
5107	}	}
5108
5109	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5110	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5111		"may not be used together\n"));
5112		return 1;
5113		} else if (defaultKernel && removeKernelPath &&
5114		!strcmp(defaultKernel, removeKernelPath)) {
5115		fprintf(stderr,
5116		_("grubby: cannot make removed kernel the default\n"));
5117		return 1;
5118		} else if (defaultKernel && newKernelPath &&
5119		!strcmp(defaultKernel, newKernelPath)) {
5120		makeDefault = 1;
5121		defaultKernel = NULL;
5122		} else if (defaultKernel && (defaultIndex >= 0)) {
5123		fprintf(stderr,
5124		_("grubby: --set-default and --set-default-index "
5125	"may not be used together\n"));	"may not be used together\n"));
5126	return 1;	return 1;
5127	} 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;
	}
5128
5129	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5130	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5131	"is used\n"));	_("grubby: output file must be specified if stdin "
5132	return 1;	"is used\n"));
5133	}	return 1;
5134		}
5135
5136	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5137	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5138	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5139	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5140	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5141	}	return 1;
5142		}
5143
5144	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5145
5146	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5147	if (!bootPrefix) {	if (!bootPrefix) {
5148	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5149	if (!bootPrefix) return 1;	if (!bootPrefix)
5150	} else {	return 1;
5151	/* this shouldn't end with a / */	} else {
5152	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5153	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5154		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5155		}
5156		} else {
5157		bootPrefix = "";
5158	}	}
	} else {
	bootPrefix = "";
	}
5159
5160	if (bootloaderProbe) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5161	int lrc = 0, grc = 0;	fprintf(stderr,
5162	struct grubConfig * lconfig, * gconfig;	_("grubby: %s doesn't allow multiple initrds\n"),
5163		cfi->defaultConfig);
5164	if (!access(grubConfigType.defaultConfig, F_OK)) {	return 1;
5165	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);
	}
5166
5167	if (lrc == 1 || grc == 1) return 1;	if (bootloaderProbe) {
5168		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5169		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5170
5171		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5172		if (grub2config) {
5173		gconfig = readConfig(grub2config, &grub2ConfigType);
5174		if (!gconfig)
5175		gr2c = 1;
5176		else
5177		gr2c = checkForGrub2(gconfig);
5178		}
5179
5180	if (lrc == 2) printf("lilo\n");	const char *grubconfig = grubFindConfig(&grubConfigType);
5181	if (grc == 2) printf("grub\n");	if (!access(grubconfig, F_OK)) {
5182		gconfig = readConfig(grubconfig, &grubConfigType);
5183		if (!gconfig)
5184		grc = 1;
5185		else
5186		grc = checkForGrub(gconfig);
5187		}
5188
5189	return 0;	if (!access(liloConfigType.defaultConfig, F_OK)) {
5190	}	lconfig =
5191		readConfig(liloConfigType.defaultConfig,
5192		&liloConfigType);
5193		if (!lconfig)
5194		lrc = 1;
5195		else
5196		lrc = checkForLilo(lconfig);
5197		}
5198
5199	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5200	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5201		&eliloConfigType);
5202		if (!econfig)
5203		erc = 1;
5204		else
5205		erc = checkForElilo(econfig);
5206		}
5207
5208	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5209	struct singleLine * line;	lconfig =
5210	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5211	char * rootspec;	&extlinuxConfigType);
5212		if (!lconfig)
5213	if (config->defaultImage == -1) return 0;	extrc = 1;
5214	entry = findEntryByIndex(config, config->defaultImage);	else
5215	if (!entry) return 0;	extrc = checkForExtLinux(lconfig);
5216	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));
5217
5218	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5219	} else if (kernelInfo)	yconfig = readConfig(yabootConfigType.defaultConfig,
5220	return displayInfo(config, kernelInfo, bootPrefix);	&yabootConfigType);
5221		if (!yconfig)
5222		yrc = 1;
5223		else
5224		yrc = checkForYaboot(yconfig);
5225		}
5226
5227	if (copyDefault) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5228	template = findTemplate(config, bootPrefix, NULL, 0, flags);	|| erc == 1)
5229	if (!template) return 1;	return 1;
5230	}
5231		if (lrc == 2)
5232		printf("lilo\n");
5233		if (gr2c == 2)
5234		printf("grub2\n");
5235		if (grc == 2)
5236		printf("grub\n");
5237		if (extrc == 2)
5238		printf("extlinux\n");
5239		if (yrc == 2)
5240		printf("yaboot\n");
5241		if (erc == 2)
5242		printf("elilo\n");
5243
5244		return 0;
5245		}
5246
5247		if (grubConfig == NULL) {
5248		printf("Could not find bootloader configuration file.\n");
5249		exit(1);
5250		}
5251
5252	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5253	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5254	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5255	bootPrefix, flags);
5256	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5257	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5258	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5259	if (addNewKernel(config, template, bootPrefix, newKernelPath,	char *rootspec;
5260	newKernelTitle, newKernelArgs, newKernelInitrd,
5261	newMBKernel, newMBKernelArgs)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5262		return 0;
5263		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5264	if (numEntries(config) == 0) {	cfi->defaultIsSaved)
5265	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	config->defaultImage = FIRST_ENTRY_INDEX;
5266	"Not writing out new config.\n"));	entry = findEntryByIndex(config, config->defaultImage);
5267	return 1;	if (!entry)
5268	}	return 0;
5269		if (!suitableImage(entry, bootPrefix, 0, flags))
5270		return 0;
5271
5272		line =
5273		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5274		LT_KERNEL_16, entry->lines);
5275		if (!line)
5276		return 0;
5277
5278		rootspec = getRootSpecifier(line->elements[1].item);
5279		printf("%s%s\n", bootPrefix, line->elements[1].item +
5280		((rootspec != NULL) ? strlen(rootspec) : 0));
5281
5282		return 0;
5283
5284		} else if (displayDefaultTitle) {
5285		struct singleLine *line;
5286		struct singleEntry *entry;
5287
5288		if (config->defaultImage == NO_DEFAULT_ENTRY)
5289		return 0;
5290		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5291		cfi->defaultIsSaved)
5292		config->defaultImage = FIRST_ENTRY_INDEX;
5293		entry = findEntryByIndex(config, config->defaultImage);
5294		if (!entry)
5295		return 0;
5296
5297		if (!configureGrub2) {
5298		char *title;
5299		line = getLineByType(LT_TITLE, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = extractTitle(config, line);
5303		if (!title)
5304		return 0;
5305		printf("%s\n", title);
5306		free(title);
5307		} else {
5308		char *title;
5309
5310		dbgPrintf
5311		("This is GRUB2, default title is embeded in menuentry\n");
5312		line = getLineByType(LT_MENUENTRY, entry->lines);
5313		if (!line)
5314		return 0;
5315		title = grub2ExtractTitle(line);
5316		if (title)
5317		printf("%s\n", title);
5318		}
5319		return 0;
5320
5321		} else if (displayDefaultIndex) {
5322		if (config->defaultImage == NO_DEFAULT_ENTRY)
5323		return 0;
5324		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5325		cfi->defaultIsSaved)
5326		config->defaultImage = FIRST_ENTRY_INDEX;
5327		printf("%i\n", config->defaultImage);
5328		return 0;
5329
5330		} else if (kernelInfo)
5331		return displayInfo(config, kernelInfo, bootPrefix);
5332
5333		if (copyDefault) {
5334		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5335		if (!template)
5336		return 1;
5337		}
5338
5339		markRemovedImage(config, removeKernelPath, bootPrefix);
5340		markRemovedImage(config, removeMBKernel, bootPrefix);
5341		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5342		makeDefault, bootPrefix, flags, defaultIndex,
5343		newIndex);
5344		setFallbackImage(config, newKernelPath != NULL);
5345		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5346		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5347		return 1;
5348		if (updateKernelPath && newKernelInitrd) {
5349		if (newMBKernel) {
5350		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5351		bootPrefix, newKernelInitrd,
5352		newKernelTitle))
5353		return 1;
5354		} else {
5355		if (updateInitrd(config, updateKernelPath, bootPrefix,
5356		newKernelInitrd, newKernelTitle))
5357		return 1;
5358		}
5359		}
5360		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5361		newKernelTitle, newKernelArgs, newKernelInitrd,
5362		(const char **)extraInitrds, extraInitrdCount,
5363		newMBKernel, newMBKernelArgs, newDevTreePath,
5364		newIndex))
5365		return 1;
5366
5367		if (numEntries(config) == 0) {
5368		fprintf(stderr,
5369		_("grubby: doing this would leave no kernel entries. "
5370		"Not writing out new config.\n"));
5371		return 1;
5372		}
5373
5374	if (!outputFile)	if (!outputFile)
5375	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5376
5377	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5378	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3025