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 3027 by niro, Tue Jun 27 14:45:42 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);	}
1984	return 1;
1985	}	/*
1986	line = line->next;	* The second column of a mtab entry is the mount point, we
1987	}	* are looking for '/' obviously.
1988	}	*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994	if (tmpOutName) {	/* Next line */
1995	if (rename(tmpOutName, outName)) {	chptr = strchr(chptr, '\n');
1996	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	if (chptr)
1997	tmpOutName, outName, strerror(errno));	chptr++;
	unlink(outName);
	return 1;
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	}	}
2039
2040	if (!strncmp(dev, "LABEL=", 6)) {	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041	dev += 6;	...)
2042		{
2043	/* check which device has this label */	static int once;
2044	dev = get_spec_by_volume_label(dev, &i, &i);	va_list argp, argq;
2045	if (!dev) return 0;
2046	}	va_start(argp, fmt);
2047
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 (*dev == '/') {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	if (stat(dev, &sb))
	return 0;
	} else {
	sb.st_rdev = strtol(dev, &end, 16);
	if (*end) return 0;
	}
	stat("/", &sb2);
2082
2083	if (sb.st_rdev != sb2.st_dev) return 0;	static int endswith(const char *s, char c)
2084		{
2085		int slen;
2086
2087	return 1;	if (!s || !s[0])
2088	}	return 0;
2089		slen = strlen(s) - 1;
2090
2091	/* returns the first match on or after the one pointed to by index (if index	return s[slen] == c;
2092	is not NULL) which is not marked as skip */	}
	struct singleEntry * findEntryByPath(struct grubConfig * config,
	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;
2093
2094	if (isdigit(*kernel)) {	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	int skipRemoved, int flags)
2096		{
2097		struct singleLine *line;
2098		char *fullName;
2099		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	i = 0;	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	indexVars[i] = strtol(kernel, &chptr, 10);	notSuitablePrintf(entry, 1, "\n");
2124	while (*chptr == ',') {	return 1;
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
2125	}	}
2126
2127	if (*chptr) {	fullName = alloca(strlen(bootPrefix) +
2128	/* can't parse it, bail */	strlen(line->elements[1].item) + 1);
2129	return NULL;	rootspec = getRootSpecifier(line->elements[1].item);
2130		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132		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	indexVars[i + 1] = -1;	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182	i = 0;	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183	if (index) {	dev);
2184	while (i < *index) i++;	return 0;
2185	if (indexVars[i] == -1) return NULL;	} 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	entry = findEntryByIndex(config, indexVars[i]);	free(rootdev);
2211	if (!entry) return NULL;	notSuitablePrintf(entry, 1, "\n");
2212
2213	line = entry->lines;	return 1;
2214	while (line && line->type != LT_KERNEL)	}
	line = line->next;
2215
2216	if (!line) return NULL;	/* returns the first match on or after the one pointed to by index (if index
2217		is not NULL) which is not marked as skip */
2218		struct singleEntry *findEntryByPath(struct grubConfig *config,
2219		const char *kernel, const char *prefix,
2220		int *index)
2221		{
2222		struct singleEntry *entry = NULL;
2223		struct singleLine *line;
2224		int i;
2225		char *chptr;
2226		char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228
2229		if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	if (index) *index = indexVars[i];	if (*chptr) {
2241	return entry;	/* can't parse it, bail */
2242	}	return NULL;
2243		}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
	} else {
	entry = findEntryByIndex(config, config->defaultImage);
	if (entry && entry->skip)
	entry = NULL;
	else if (index)
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2244
2245	while ((entry = findEntryByIndex(config, i))) {	indexVars[i + 1] = -1;
	if (!entry->skip) break;
	i++;
	}
2246
2247	if (entry && index)	i = 0;
2248	*index = i;	if (index) {
2249	} else {	while (i < *index) {
2250	if (index)	i++;
2251	i = *index;	if (indexVars[i] == -1)
2252	else	return NULL;
2253	i = 0;	}
2254		}
2255
2256	if (!strncmp(kernel, "TITLE=", 6)) {	entry = findEntryByIndex(config, indexVars[i]);
2257	prefix = "";	if (!entry)
2258	checkType = LT_TITLE;	return NULL;
2259	kernel += 6;
2260	}	line =
2261		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262	while ((entry = findEntryByIndex(config, i))) {	LT_KERNEL_16, entry->lines);
2263	line = entry->lines;	if (!line)
2264	while (line && line->type != checkType) line=line->next;	return NULL;
2265
2266		if (index)
2267	if (line && line->numElements >= 2 && !entry->skip) {	*index = indexVars[i];
2268	rootspec = getRootSpecifier(line->elements[1].item);	return entry;
2269	if (!strcmp(line->elements[1].item  +	}
2270	((rootspec != NULL) ? strlen(rootspec) : 0),
2271	kernel + strlen(prefix)))	if (!strcmp(kernel, "DEFAULT")) {
2272	break;	if (index && *index > config->defaultImage) {
2273	}	entry = NULL;
2274		} else {
2275	/* have to check multiboot lines too */	entry = findEntryByIndex(config, config->defaultImage);
2276	if (entry->multiboot) {	if (entry && entry->skip)
2277	while (line && line->type != LT_MBMODULE) line = line->next;	entry = NULL;
2278	if (line && line->numElements >= 2 && !entry->skip) {	else if (index)
2279	rootspec = getRootSpecifier(line->elements[1].item);	*index = config->defaultImage;
2280	if (!strcmp(line->elements[1].item  +	}
2281	((rootspec != NULL) ? strlen(rootspec) : 0),	} else if (!strcmp(kernel, "ALL")) {
2282	kernel + strlen(prefix)))	if (index)
2283	break;	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	i++;	for (entry = findEntryByIndex(config, i); entry;
2308		entry = entry->next, i++) {
2309		if (entry->skip)
2310		continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		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		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		/* initialize */
2529		currentLookupIndex = FIRST_ENTRY_INDEX;
2530
2531		/* handle the two cases where the user explictly picks the default
2532		* boot entry index as it would exist post-modification */
2533
2534		/* Case 1: user chose to make the latest boot entry the default */
2535		if (newBootEntryIsDefault) {
2536		config->defaultImage = newBootEntryIndex;
2537		return;
2538		}
2539
2540		/* Case 2: user picked an arbitrary index as the default boot entry */
2541		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2542		&& config->cfi->defaultIsIndex) {
2543		indexToVerify = newDefaultBootEntryIndex;
2544
2545		/* user chose to make latest boot entry the default */
2546		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2547		config->defaultImage = newBootEntryIndex;
2548		return;
2549		}
2550
2551		/* the user picks the default index based on the
2552		* order of the bootloader configuration after
2553		* modification; ensure we are checking for the
2554		* existence of the correct entry */
2555		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2556		if (!config->isModified)
2557		indexToVerify--;
2558		}
2559
2560		/* verify the user selected index will exist */
2561		if (findEntryByIndex(config, indexToVerify)) {
2562		config->defaultImage = newDefaultBootEntryIndex;
2563		} else {
2564		config->defaultImage = NO_DEFAULT_ENTRY;
2565		}
2566
2567		return;
2568		}
2569
2570		/* handle cases where the index value may shift */
2571
2572		/* check validity of existing default or first-entry-found
2573		selection */
2574		if (defaultKernelPath) {
2575		/* we must initialize this */
2576		firstKernelEntryIndex = 0;
2577		/* user requested first-entry-found */
2578		if (!findEntryByPath(config, defaultKernelPath,
2579		prefix, &firstKernelEntryIndex)) {
2580		/* don't change default if can't find match */
2581		config->defaultImage = NO_DEFAULT_ENTRY;
2582		return;
2583		}
2584
2585		config->defaultImage = firstKernelEntryIndex;
2586
2587		/* this is where we start looking for decrement later */
2588		currentLookupIndex = config->defaultImage;
2589
2590		if (isAddingBootEntry && !config->isModified &&
2591		(newBootEntryIndex < config->defaultImage)) {
2592		/* increment because new entry added before default */
2593		config->defaultImage++;
2594		}
2595	} else {	} else {
2596	config->defaultImage = -1;	/* check to see if the default is stored in the environment */
2597	return;	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2598		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2599		{
2600		if (config->cfi->defaultIsSaved) {
2601		if (config->cfi->getEnv) {
2602		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2603
2604		if (defaultTitle) {
2605		if (isnumber(defaultTitle)) {
2606		currentLookupIndex = atoi(defaultTitle);
2607		} else {
2608		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2609		}
2610		/* set the default Image to an actual index */
2611		config->defaultImage = currentLookupIndex;
2612		}
2613		}
2614		}
2615		}
2616		} else {
2617		/* use pre-existing default entry from the file*/
2618		currentLookupIndex = config->defaultImage;
2619		}
2620
2621		if (isAddingBootEntry
2622		&& (newBootEntryIndex <= config->defaultImage)) {
2623		config->defaultImage++;
2624
2625		if (config->isModified) {
2626		currentLookupIndex++;
2627		}
2628		}
2629		}
2630
2631		/* sanity check - is this entry index valid? */
2632		bootEntry = findEntryByIndex(config, currentLookupIndex);
2633
2634		if ((bootEntry && bootEntry->skip) || !bootEntry) {
2635		/* entry is to be skipped or is invalid */
2636		if (isAddingBootEntry) {
2637		config->defaultImage = newBootEntryIndex;
2638		return;
2639		}
2640		newDefault =
2641		findTemplate(config, prefix, &config->defaultImage, 1,
2642		flags);
2643		if (!newDefault) {
2644		config->defaultImage = NO_DEFAULT_ENTRY;
2645		}
2646
2647		return;
2648	}	}
	}
2649
2650	/* defaultImage now points to what we'd like to use, but before any order	currentLookupIndex--;
2651	changes */
2652	if (config->defaultImage == DEFAULT_SAVED)	/* decrement index by the total number of entries deleted */
2653	/* default is set to saved, we don't want to change it */
2654	return;	for (indexToVerify = currentLookupIndex;
2655		indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2656	if (config->defaultImage > -1)
2657	entry = findEntryByIndex(config, config->defaultImage);	bootEntry = findEntryByIndex(config, indexToVerify);
2658	else
2659	entry = NULL;	if (bootEntry && bootEntry->skip) {
2660		config->defaultImage--;
2661		}
2662		}
2663		}
2664
2665		void setFallbackImage(struct grubConfig *config, int hasNew)
2666		{
2667		struct singleEntry *entry, *entry2;
2668		int j;
2669
2670		if (config->fallbackImage == -1)
2671		return;
2672
2673		entry = findEntryByIndex(config, config->fallbackImage);
2674		if (!entry || entry->skip) {
2675		config->fallbackImage = -1;
2676		return;
2677		}
2678
	if (entry && !entry->skip) {
	/* we can preserve the default */
2679	if (hasNew)	if (hasNew)
2680	config->defaultImage++;	config->fallbackImage++;
2681
2682	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2683	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2684	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2685	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2686	}	config->fallbackImage--;
2687	} 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;
	}
2688	}	}
2689
2690	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2691	struct singleEntry * entry, * entry2;	{
2692	int j;	struct singleLine *line;
2693		char *root = NULL;
2694	if (config->fallbackImage == -1) return;	int i;
2695		int j;
2696	entry = findEntryByIndex(config, config->fallbackImage);
2697	if (!entry || entry->skip) {	printf("index=%d\n", index);
2698	config->fallbackImage = -1;
2699	return;	line =
2700	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2701		entry->lines);
2702		if (!line) {
2703		printf("non linux entry\n");
2704		return;
2705		}
2706
2707	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2708	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2709		else
2710	/* 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--;
	}
	}
2711
2712	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2713	struct singleLine * line;	printf("args=\"");
2714	char * root = NULL;	i = 2;
2715	int i;	while (i < line->numElements) {
2716		if (!strncmp(line->elements[i].item, "root=", 5)) {
2717	line = entry->lines;	root = line->elements[i].item + 5;
2718	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2719		printf("%s%s", line->elements[i].item,
2720	printf("index=%d\n", index);	line->elements[i].indent);
2721		}
2722	printf("kernel=%s\n", line->elements[1].item);
2723		i++;
2724	if (line->numElements >= 3) {	}
2725	printf("args=\"");	printf("\"\n");
2726	i = 2;	} else {
2727	while (i < line->numElements) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2728	if (!strncmp(line->elements[i].item, "root=", 5)) {	if (line) {
2729	root = line->elements[i].item + 5;	char *s;
2730	} else {
2731	printf("%s%s", line->elements[i].item,	printf("args=\"");
2732	line->elements[i].indent);	i = 1;
2733	}	while (i < line->numElements) {
2734		if (!strncmp
2735		(line->elements[i].item, "root=", 5)) {
2736		root = line->elements[i].item + 5;
2737		} else {
2738		s = line->elements[i].item;
2739
2740		printf("%s%s", s,
2741		line->elements[i].indent);
2742		}
2743
2744		i++;
2745		}
2746
2747		s = line->elements[i - 1].indent;
2748		printf("\"\n");
2749		}
2750		}
2751
2752		if (!root) {
2753		line = getLineByType(LT_ROOT, entry->lines);
2754		if (line && line->numElements >= 2)
2755		root = line->elements[1].item;
2756		}
2757
2758		if (root) {
2759		char *s = alloca(strlen(root) + 1);
2760
2761		strcpy(s, root);
2762		if (s[strlen(s) - 1] == '"')
2763		s[strlen(s) - 1] = '\0';
2764		/* make sure the root doesn't have a trailing " */
2765		printf("root=%s\n", s);
2766		}
2767
2768		line =
2769		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2770		entry->lines);
2771
2772	i++;	if (line && line->numElements >= 2) {
2773		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2774		printf("initrd=");
2775		else
2776		printf("initrd=%s", 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	}	}
2783	printf("\"\n");
2784	} else {	line = getLineByType(LT_TITLE, entry->lines);
	line = entry->lines;
	while (line && line->type != LT_KERNELARGS) line=line->next;
2785	if (line) {	if (line) {
2786	char * s;	printf("title=%s\n", line->elements[1].item);
2787		} else {
2788		char *title;
2789		line = getLineByType(LT_MENUENTRY, entry->lines);
2790		if (line) {
2791		title = grub2ExtractTitle(line);
2792		if (title)
2793		printf("title=%s\n", title);
2794		}
2795		}
2796
2797	printf("args=\"");	for (j = 0, line = entry->lines; line; line = line->next) {
2798	i = 1;	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2799	while (i < line->numElements) {	if (!strncmp
2800	if (!strncmp(line->elements[i].item, "root=", 5)) {	(prefix, line->elements[1].item, strlen(prefix)))
2801	root = line->elements[i].item + 5;	printf("mbmodule%d=", j);
2802		else
2803		printf("mbmodule%d=%s", j, prefix);
2804
2805		for (i = 1; i < line->numElements; i++)
2806		printf("%s%s", line->elements[i].item,
2807		line->elements[i].indent);
2808		printf("\n");
2809		j++;
2810		}
2811		}
2812		}
2813
2814		int isSuseSystem(void)
2815		{
2816		const char *path;
2817		const static char default_path[] = "/etc/SuSE-release";
2818
2819		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2820		path = default_path;
2821
2822		if (!access(path, R_OK))
2823		return 1;
2824		return 0;
2825		}
2826
2827		int isSuseGrubConf(const char *path)
2828		{
2829		FILE *grubConf;
2830		char *line = NULL;
2831		size_t len = 0, res = 0;
2832
2833		grubConf = fopen(path, "r");
2834		if (!grubConf) {
2835		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2836		path);
2837		return 0;
2838		}
2839
2840		while ((res = getline(&line, &len, grubConf)) != -1) {
2841		if (!strncmp(line, "setup", 5)) {
2842		fclose(grubConf);
2843		free(line);
2844		return 1;
2845		}
2846		}
2847
2848		dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2849		path);
2850
2851		fclose(grubConf);
2852		free(line);
2853		return 0;
2854		}
2855
2856		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2857		{
2858		FILE *grubConf;
2859		char *line = NULL;
2860		size_t res = 0, len = 0;
2861
2862		if (!path)
2863		return 1;
2864		if (!lbaPtr)
2865		return 1;
2866
2867		grubConf = fopen(path, "r");
2868		if (!grubConf)
2869		return 1;
2870
2871		while ((res = getline(&line, &len, grubConf)) != -1) {
2872		if (line[res - 1] == '\n')
2873		line[res - 1] = '\0';
2874		else if (len > res)
2875		line[res] = '\0';
2876		else {
2877		line = realloc(line, res + 1);
2878		line[res] = '\0';
2879		}
2880
2881		if (!strncmp(line, "setup", 5)) {
2882		if (strstr(line, "--force-lba")) {
2883		*lbaPtr = 1;
2884		} else {
2885		*lbaPtr = 0;
2886		}
2887		dbgPrintf("lba: %i\n", *lbaPtr);
2888		break;
2889		}
2890		}
2891
2892		free(line);
2893		fclose(grubConf);
2894		return 0;
2895		}
2896
2897		int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2898		{
2899		FILE *grubConf;
2900		char *line = NULL;
2901		size_t res = 0, len = 0;
2902		char *lastParamPtr = NULL;
2903		char *secLastParamPtr = NULL;
2904		char installDeviceNumber = '\0';
2905		char *bounds = NULL;
2906
2907		if (!path)
2908		return 1;
2909		if (!devicePtr)
2910		return 1;
2911
2912		grubConf = fopen(path, "r");
2913		if (!grubConf)
2914		return 1;
2915
2916		while ((res = getline(&line, &len, grubConf)) != -1) {
2917		if (strncmp(line, "setup", 5))
2918		continue;
2919
2920		if (line[res - 1] == '\n')
2921		line[res - 1] = '\0';
2922		else if (len > res)
2923		line[res] = '\0';
2924		else {
2925		line = realloc(line, res + 1);
2926		line[res] = '\0';
2927		}
2928
2929		lastParamPtr = bounds = line + res;
2930
2931		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2932		while (!isspace(*lastParamPtr))
2933		lastParamPtr--;
2934		lastParamPtr++;
2935
2936		secLastParamPtr = lastParamPtr - 2;
2937		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2938
2939		if (lastParamPtr + 3 > bounds) {
2940		dbgPrintf("lastParamPtr going over boundary");
2941		fclose(grubConf);
2942		free(line);
2943		return 1;
2944		}
2945		if (!strncmp(lastParamPtr, "(hd", 3))
2946		lastParamPtr += 3;
2947		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2948
2949		/*
2950		* Second last parameter will decide wether last parameter is
2951		* an IMAGE_DEVICE or INSTALL_DEVICE
2952		*/
2953		while (!isspace(*secLastParamPtr))
2954		secLastParamPtr--;
2955		secLastParamPtr++;
2956
2957		if (secLastParamPtr + 3 > bounds) {
2958		dbgPrintf("secLastParamPtr going over boundary");
2959		fclose(grubConf);
2960		free(line);
2961		return 1;
2962		}
2963		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2964		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2965		secLastParamPtr += 3;
2966		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2967		installDeviceNumber = *secLastParamPtr;
2968	} else {	} else {
2969	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
2970		}
2971
2972		*devicePtr = malloc(6);
2973		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2974		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2975		fclose(grubConf);
2976		free(line);
2977		return 0;
2978		}
2979
2980		free(line);
2981		fclose(grubConf);
2982		return 1;
2983		}
2984
2985		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2986		{
2987		FILE *deviceMap;
2988		char *line = NULL;
2989		size_t res = 0, len = 0;
2990		char *devicePtr;
2991		char *bounds = NULL;
2992		const char *path;
2993		const static char default_path[] = "/boot/grub/device.map";
2994
2995		if (!device)
2996		return 1;
2997		if (!bootPtr)
2998		return 1;
2999
3000		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3001		path = default_path;
3002
3003		dbgPrintf("opening grub device.map file from: %s\n", path);
3004		deviceMap = fopen(path, "r");
3005		if (!deviceMap)
3006		return 1;
3007
3008	printf("%s%s", s, line->elements[i].indent);	while ((res = getline(&line, &len, deviceMap)) != -1) {
3009		if (!strncmp(line, "#", 1))
3010		continue;
3011
3012		if (line[res - 1] == '\n')
3013		line[res - 1] = '\0';
3014		else if (len > res)
3015		line[res] = '\0';
3016		else {
3017		line = realloc(line, res + 1);
3018		line[res] = '\0';
3019	}	}
3020
3021	i++;	devicePtr = line;
3022	}	bounds = line + res;
3023
3024	s = line->elements[i - 1].indent;	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3025	printf("\"\n");	devicePtr++;
3026		dbgPrintf("device: %s\n", devicePtr);
3027
3028		if (!strncmp(devicePtr, device, strlen(device))) {
3029		devicePtr += strlen(device);
3030		while (isspace(*devicePtr)
3031		&& ((devicePtr + 1) <= bounds))
3032		devicePtr++;
3033
3034		*bootPtr = strdup(devicePtr);
3035		break;
3036		}
3037	}	}
	}
3038
3039	if (!root) {	free(line);
3040	line = entry->lines;	fclose(deviceMap);
3041	while (line && line->type != LT_ROOT) line = line->next;	return 0;
3042		}
3043
3044	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3045	root=line->elements[1].item;	{
3046	}	char *grubDevice;
3047
3048	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3049	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
3050		else
3051	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);
	}
3052
3053	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3054	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
3055		else
3056		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3057
3058	if (line && line->numElements >= 2) {	free(grubDevice);
3059	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");
	}
3060	}	}
3061
3062	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3063	FILE * in;	{
3064	char buf[1024];	/*
3065	char * chptr;	* This SuSE grub configuration file at this location is not your
3066	char * start;	* average grub configuration file, but instead the grub commands
3067	char * param;	* used to setup grub on that system.
3068		*/
3069	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
3070	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);
	}
3071
3072	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3073		path = default_path;
3074
3075	return 0;	if (!isSuseGrubConf(path))
3076		return 1;
3077
3078		if (lbaPtr) {
3079		*lbaPtr = 0;
3080		if (suseGrubConfGetLba(path, lbaPtr))
3081		return 1;
3082		}
3083
3084		if (bootPtr) {
3085		*bootPtr = NULL;
3086		suseGrubConfGetBoot(path, bootPtr);
3087		}
3088
3089		return 0;
3090	}	}
3091
3092	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3093	char * boot;	{
3094	int lba;	FILE *in;
3095		char buf[1024];
3096	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
3097	if (lba) printf("lba\n");	char *start;
3098	if (boot) printf("boot=%s\n", boot);	char *param;
3099	}
3100		in = fopen("/etc/sysconfig/grub", "r");
3101		if (!in)
3102		return 1;
3103
3104		if (lbaPtr)
3105		*lbaPtr = 0;
3106		if (bootPtr)
3107		*bootPtr = NULL;
3108
3109		while (fgets(buf, sizeof(buf), in)) {
3110		start = buf;
3111		while (isspace(*start))
3112		start++;
3113		if (*start == '#')
3114		continue;
3115
3116		chptr = strchr(start, '=');
3117		if (!chptr)
3118		continue;
3119		chptr--;
3120		while (*chptr && isspace(*chptr))
3121		chptr--;
3122		chptr++;
3123		*chptr = '\0';
3124
3125		param = chptr + 1;
3126		while (*param && isspace(*param))
3127		param++;
3128		if (*param == '=') {
3129		param++;
3130		while (*param && isspace(*param))
3131		param++;
3132		}
3133
3134		chptr = param;
3135		while (*chptr && !isspace(*chptr))
3136		chptr++;
3137		*chptr = '\0';
3138
3139		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3140		*lbaPtr = 1;
3141		else if (!strcmp(start, "boot") && bootPtr)
3142		*bootPtr = strdup(param);
3143		}
3144
3145		fclose(in);
3146
3147		return 0;
3148	}	}
3149
3150	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3151	const char * prefix) {	{
3152	int i = 0;	char *boot = NULL;
3153	struct singleEntry * entry;	int lba;
3154	struct singleLine * line;
3155		if (isSuseSystem()) {
3156	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3157	if (!entry) {	free(boot);
3158	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3159	return 1;	}
3160	}	} else {
3161		if (parseSysconfigGrub(&lba, &boot)) {
3162		free(boot);
3163		return;
3164		}
3165		}
3166
3167	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3168	be a better way */	printf("lba\n");
3169	if (config->cfi == &grubConfigType) {	if (boot) {
3170	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3171	} 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);
3172	}	}
3173		}
3174
3175	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3176	while (line && line->type != LT_LBA) line = line->next;	{
3177	if (line) printf("lba\n");	int i = 0;
3178	}	struct singleEntry *entry;
3179		struct singleLine *line;
3180
3181		entry = findEntryByPath(config, kernel, prefix, &i);
3182		if (!entry) {
3183		fprintf(stderr, _("grubby: kernel not found\n"));
3184		return 1;
3185		}
3186
3187		/* this is a horrible hack to support /etc/sysconfig/grub; there must
3188		be a better way */
3189		if (config->cfi == &grubConfigType) {
3190		dumpSysconfigGrub();
3191		} else {
3192		line = getLineByType(LT_BOOT, config->theLines);
3193		if (line && line->numElements >= 1) {
3194		printf("boot=%s\n", line->elements[1].item);
3195		}
3196
3197	displayEntry(entry, prefix, i);	line = getLineByType(LT_LBA, config->theLines);
3198		if (line)
3199		printf("lba\n");
3200		}
3201
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3202	displayEntry(entry, prefix, i);	displayEntry(entry, prefix, i);
3203
3204	i++;	i++;
3205	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3206		displayEntry(entry, prefix, i);
3207		i++;
3208		}
3209
3210	return 0;	return 0;
3211		}
3212
3213		struct singleLine *addLineTmpl(struct singleEntry *entry,
3214		struct singleLine *tmplLine,
3215		struct singleLine *prevLine,
3216		const char *val, struct configFileInfo *cfi)
3217		{
3218		struct singleLine *newLine = lineDup(tmplLine);
3219
3220		if (isEfi && cfi == &grub2ConfigType) {
3221		enum lineType_e old = newLine->type;
3222		newLine->type = preferredLineType(newLine->type, cfi);
3223		if (old != newLine->type)
3224		newLine->elements[0].item =
3225		getKeyByType(newLine->type, cfi);
3226		}
3227
3228		if (val) {
3229		/* override the inherited value with our own.
3230		* This is a little weak because it only applies to elements[1]
3231		*/
3232		if (newLine->numElements > 1)
3233		removeElement(newLine, 1);
3234		insertElement(newLine, val, 1, cfi);
3235
3236		/* but try to keep the rootspec from the template... sigh */
3237		if (tmplLine->
3238		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3239		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3240		LT_INITRD_16)) {
3241		char *rootspec =
3242		getRootSpecifier(tmplLine->elements[1].item);
3243		if (rootspec != NULL) {
3244		free(newLine->elements[1].item);
3245		newLine->elements[1].item =
3246		sdupprintf("%s%s", rootspec, val);
3247		}
3248		}
3249		}
3250
3251		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3252		newLine->elements[0].item : "");
3253
3254		if (!entry->lines) {
3255		/* first one on the list */
3256		entry->lines = newLine;
3257		} else if (prevLine) {
3258		/* add after prevLine */
3259		newLine->next = prevLine->next;
3260		prevLine->next = newLine;
3261		}
3262
3263		return newLine;
3264	}	}
3265
3266	/* val may be NULL */	/* val may be NULL */
3267	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3268	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3269	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3270	char * val) {	const char *val)
3271	struct singleLine * line, * prev;	{
3272	int i;	struct singleLine *line, *prev;
3273		struct keywordTypes *kw;
3274	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3275	if (cfi->keywords[i].type == type) break;
3276	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3277	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3278		*/
3279	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3280	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3281	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3282	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3283	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3284	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3285	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3286	prev = NULL;	tmpl.elements[0].indent = "";
3287	while (line) {	val = NULL;
3288	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3289	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3290		if (!val) {
3291		fprintf(stderr,
3292		"Line type LT_MENUENTRY requires a value\n");
3293		abort();
3294		}
3295		kw = getKeywordByType(type, cfi);
3296		if (!kw) {
3297		fprintf(stderr,
3298		"Looking up keyword for unknown type %d\n",
3299		type);
3300		abort();
3301		}
3302		tmpl.indent = "";
3303		tmpl.type = type;
3304		tmpl.numElements = 3;
3305		tmpl.elements =
3306		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3307		tmpl.elements[0].item = kw->key;
3308		tmpl.elements[0].indent = alloca(2);
3309		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3310		tmpl.elements[1].item = (char *)val;
3311		tmpl.elements[1].indent = alloca(2);
3312		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3313		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3314		strcpy(tmpl.elements[2].item, lineend);
3315		tmpl.elements[2].indent = "";
3316		} else {
3317		kw = getKeywordByType(type, cfi);
3318		if (!kw) {
3319		fprintf(stderr,
3320		"Looking up keyword for unknown type %d\n",
3321		type);
3322		abort();
3323		}
3324		tmpl.type = type;
3325		tmpl.numElements = val ? 2 : 1;
3326		tmpl.elements =
3327		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3328		tmpl.elements[0].item = kw->key;
3329		tmpl.elements[0].indent = alloca(2);
3330		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3331		if (val) {
3332		tmpl.elements[1].item = (char *)val;
3333		tmpl.elements[1].indent = "";
3334		}
3335	}	}
	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;
3336
3337	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3338	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3339	else	* which may not be ideal? If there are no lines or we are looking at
3340	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3341	} else {	* indented differently from the rest) */
3342	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3343	line->indent = strdup(defaultIndent);	if (line->numElements)
3344	line->next = NULL;	prev = line;
3345	}	/* fall back on the last line if prev isn't otherwise set */
3346		if (!line->next && !prev)
3347		prev = line;
3348		}
3349
3350		struct singleLine *menuEntry;
3351		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3352		if (tmpl.type == LT_ENTRY_END) {
3353		if (menuEntry)
3354		tmpl.indent = menuEntry->indent;
3355		else
3356		tmpl.indent = defaultIndent ? : "";
3357		} else if (tmpl.type != LT_MENUENTRY) {
3358		if (menuEntry)
3359		tmpl.indent = "\t";
3360		else if (prev == entry->lines)
3361		tmpl.indent = defaultIndent ? : "";
3362		else
3363		tmpl.indent = prev->indent;
3364		}
3365
3366	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3367	line->type = type;	}
3368	line->numElements = val ? 2 : 1;
3369	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3370	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3371	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3372	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
3373	line->elements[0].indent[1] = '\0';
3374		for (i = 0; i < line->numElements; i++) {
3375	if (val) {	free(line->elements[i].item);
3376	line->elements[1].item = val;	free(line->elements[i].indent);
3377	line->elements[1].indent = strdup("");	}
3378	}	free(line->elements);
3379	} else {	free(line->indent);
	/* we're doing the title of a bracketed title (zipl) */
	line->type = type;
	line->numElements = 1;
	line->elements = malloc(sizeof(*line->elements) * line->numElements);
	line->elements[0].item = malloc(strlen(val) + 3);
	sprintf(line->elements[0].item, "[%s]", val);
	line->elements[0].indent = strdup("");
	}
3380
3381	return line;	if (line == entry->lines) {
3382		entry->lines = line->next;
3383		} else {
3384		prev = entry->lines;
3385		while (prev->next != line)
3386		prev = prev->next;
3387		prev->next = line->next;
3388		}
3389
3390		free(line);
3391	}	}
3392
3393	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3394	struct singleLine * prev;	{
3395	int i;	struct singleLine newLine = {
3396		.indent = tmplLine->indent,
3397		.type = tmplLine->type,
3398		.next = tmplLine->next,
3399		};
3400		int firstQuotedItem = -1;
3401		int quoteLen = 0;
3402		int j;
3403		int element = 0;
3404		char *c;
3405
3406		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3407		strcpy(c, tmplLine->elements[0].item);
3408		insertElement(&newLine, c, element++, cfi);
3409		free(c);
3410		c = NULL;
3411
3412		for (j = 1; j < tmplLine->numElements; j++) {
3413		if (firstQuotedItem == -1) {
3414		quoteLen += strlen(tmplLine->elements[j].item);
3415
3416		if (isquote(tmplLine->elements[j].item[0])) {
3417		firstQuotedItem = j;
3418		quoteLen +=
3419		strlen(tmplLine->elements[j].indent);
3420		} else {
3421		c = malloc(quoteLen + 1);
3422		strcpy(c, tmplLine->elements[j].item);
3423		insertElement(&newLine, c, element++, cfi);
3424		free(c);
3425		quoteLen = 0;
3426		}
3427		} else {
3428		int itemlen = strlen(tmplLine->elements[j].item);
3429		quoteLen += itemlen;
3430		quoteLen += strlen(tmplLine->elements[j].indent);
3431
3432		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3433		c = malloc(quoteLen + 1);
3434		c[0] = '\0';
3435		for (int i = firstQuotedItem; i < j + 1; i++) {
3436		strcat(c, tmplLine->elements[i].item);
3437		strcat(c, tmplLine->elements[i].indent);
3438		}
3439		insertElement(&newLine, c, element++, cfi);
3440		free(c);
3441
3442		firstQuotedItem = -1;
3443		quoteLen = 0;
3444		}
3445		}
3446		}
3447		while (tmplLine->numElements)
3448		removeElement(tmplLine, 0);
3449		if (tmplLine->elements)
3450		free(tmplLine->elements);
3451
3452	for (i = 0; i < line->numElements; i++) {	tmplLine->numElements = newLine.numElements;
3453	free(line->elements[i].item);	tmplLine->elements = newLine.elements;
3454	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
3455
3456	if (line == entry->lines) {	static void insertElement(struct singleLine *line,
3457	entry->lines = line->next;	const char *item, int insertHere,
3458	} else {	struct configFileInfo *cfi)
3459	prev = entry->lines;	{
3460	while (prev->next != line) prev = prev->next;	struct keywordTypes *kw;
3461	prev->next = line->next;	char indent[2] = "";
3462	}
3463		/* sanity check */
3464		if (insertHere > line->numElements) {
3465		dbgPrintf
3466		("insertElement() adjusting insertHere from %d to %d\n",
3467		insertHere, line->numElements);
3468		insertHere = line->numElements;
3469		}
3470
3471		line->elements = realloc(line->elements, (line->numElements + 1) *
3472		sizeof(*line->elements));
3473		memmove(&line->elements[insertHere + 1],
3474		&line->elements[insertHere],
3475		(line->numElements - insertHere) * sizeof(*line->elements));
3476		line->elements[insertHere].item = strdup(item);
3477
3478		kw = getKeywordByType(line->type, cfi);
3479
3480		if (line->numElements == 0) {
3481		indent[0] = '\0';
3482		} else if (insertHere == 0) {
3483		indent[0] = kw->nextChar;
3484		} else if (kw->separatorChar != '\0') {
3485		indent[0] = kw->separatorChar;
3486		} else {
3487		indent[0] = ' ';
3488		}
3489
3490		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3491		/* move the end-of-line forward */
3492		line->elements[insertHere].indent =
3493		line->elements[insertHere - 1].indent;
3494		line->elements[insertHere - 1].indent = strdup(indent);
3495		} else {
3496		line->elements[insertHere].indent = strdup(indent);
3497		}
3498
3499		line->numElements++;
3500
3501	free(line);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3502		line->elements[0].item,
3503		line->elements[insertHere].item,
3504		line->elements[insertHere].indent, insertHere);
3505	}	}
3506
3507	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3508	char * first, * second;	{
3509	char * chptr;	int i;
3510
3511	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3512	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3513		return;
3514	chptr = strchr(first, '=');
3515	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3516		removeHere, line->elements[removeHere].item);
3517	chptr = strchr(second, '=');
3518	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3519
3520	return strcmp(first, second);	if (removeHere > 1) {
3521	}	/* previous argument gets this argument's post-indentation */
3522		free(line->elements[removeHere - 1].indent);
3523	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3524	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3525	const char * removeArgs, int multibootArgs) {	} else {
3526	struct singleEntry * entry;	free(line->elements[removeHere].indent);
3527	struct singleLine * line, * rootLine;	}
3528	int index = 0;
3529	int i, j, k;	/* now collapse the array, but don't bother to realloc smaller */
3530	const char ** newArgs, ** oldArgs;	for (i = removeHere; i < line->numElements - 1; i++)
3531	const char ** arg;	line->elements[i] = line->elements[i + 1];
3532	const char * chptr;
3533	int useKernelArgs = 0;	line->numElements--;
3534	int useRoot = 0;	}
3535	int firstElement;
3536	int *usedElements, *usedArgs;	int argMatch(const char *one, const char *two)
3537		{
3538	if (!image) return 0;	char *first, *second;
3539		char *chptr;
3540	if (!addArgs) {
3541	newArgs = malloc(sizeof(*newArgs));	first = strcpy(alloca(strlen(one) + 1), one);
3542	*newArgs = NULL;	second = strcpy(alloca(strlen(two) + 1), two);
3543	} else {
3544	if (poptParseArgvString(addArgs, NULL, &newArgs)) {	chptr = strchr(first, '=');
3545	fprintf(stderr,	if (chptr)
3546	_("grubby: error separating arguments '%s'\n"), addArgs);	*chptr = '\0';
3547	return 1;
3548		chptr = strchr(second, '=');
3549		if (chptr)
3550		*chptr = '\0';
3551
3552		return strcmp(first, second);
3553		}
3554
3555		int updateActualImage(struct grubConfig *cfg, const char *image,
3556		const char *prefix, const char *addArgs,
3557		const char *removeArgs, int multibootArgs)
3558		{
3559		struct singleEntry *entry;
3560		struct singleLine *line, *rootLine;
3561		int index = 0;
3562		int i, k;
3563		const char **newArgs, **oldArgs;
3564		const char **arg;
3565		int useKernelArgs, useRoot;
3566		int firstElement;
3567		int *usedElements;
3568		int doreplace;
3569
3570		if (!image)
3571		return 0;
3572
3573		if (!addArgs) {
3574		newArgs = malloc(sizeof(*newArgs));
3575		*newArgs = NULL;
3576		} else {
3577		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3578		fprintf(stderr,
3579		_("grubby: error separating arguments '%s'\n"),
3580		addArgs);
3581		return 1;
3582		}
3583	}	}
	}
3584
3585	if (!removeArgs) {	if (!removeArgs) {
3586	oldArgs = malloc(sizeof(*oldArgs));	oldArgs = malloc(sizeof(*oldArgs));
3587	*oldArgs = NULL;	*oldArgs = NULL;
3588	} else {	} else {
3589	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3590	fprintf(stderr,	fprintf(stderr,
3591	_("grubby: error separating arguments '%s'\n"), removeArgs);	_("grubby: error separating arguments '%s'\n"),
3592	free(newArgs);	removeArgs);
3593	return 1;	free(newArgs);
3594		return 1;
3595		}
3596	}	}
	}
3597
3598	for (i = 0; cfg->cfi->keywords[i].key; i++)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3599	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3600
3601	if (cfg->cfi->keywords[i].key)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3602	useKernelArgs = 1;	&& !multibootArgs);
3603
3604	for (i = 0; cfg->cfi->keywords[i].key; i++)	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	if (cfg->cfi->keywords[i].type == LT_ROOT) break;
3605
3606	if (cfg->cfi->keywords[i].key)	if (multibootArgs && !entry->multiboot)
3607	useRoot = 1;	continue;
3608
3609	k = 0;	/* Determine where to put the args.  If this config supports
3610	for (arg = newArgs; *arg; arg++)	* LT_KERNELARGS, use that.  Otherwise use
3611	k++;	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3612	usedArgs = calloc(k, sizeof(int));	*/
3613		if (useKernelArgs) {
3614	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	line = getLineByType(LT_KERNELARGS, entry->lines);
3615	index++;	if (!line) {
3616		/* no LT_KERNELARGS, need to add it */
3617	line = entry->lines;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3618	while (line && line->type != LT_KERNEL) line = line->next;	cfg->secondaryIndent, NULL);
3619	if (!line) continue;	}
3620	firstElement = 2;	firstElement = 1;
3621
3622	if (entry->multiboot && !multibootArgs) {	} else if (multibootArgs) {
3623	/* first mb module line is the real kernel */	line = getLineByType(LT_HYPER, entry->lines);
3624	while (line && line->type != LT_MBMODULE) line = line->next;	if (!line) {
3625	firstElement = 2;	/* a multiboot entry without LT_HYPER? */
3626	} else if (useKernelArgs) {	continue;
3627	while (line && line->type != LT_KERNELARGS) line = line->next;	}
3628	firstElement = 1;	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, '=');
3629
	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(" ");
3630	} else {	} else {
3631	/* First thing on this line; treat a bit differently. Note	line =
3632	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3633	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3634	line->elements[line->numElements].indent = strdup("");	entry->lines);
3635		if (!line) {
3636		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3637		continue;
3638		}
3639		firstElement = 2;
3640	}	}
3641
3642	line->numElements++;	/* handle the elilo case which does:
3643		*   append="hypervisor args -- kernel args"
3644		*/
3645		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3646		/* this is a multiboot entry, make sure there's
3647		* -- on the args line
3648		*/
3649		for (i = firstElement; i < line->numElements; i++) {
3650		if (!strcmp(line->elements[i].item, "--"))
3651		break;
3652		}
3653		if (i == line->numElements) {
3654		/* assume all existing args are kernel args,
3655		* prepend -- to make it official
3656		*/
3657		insertElement(line, "--", firstElement,
3658		cfg->cfi);
3659		i = firstElement;
3660		}
3661		if (!multibootArgs) {
3662		/* kernel args start after the -- */
3663		firstElement = i + 1;
3664		}
3665		} else if (cfg->cfi->mbConcatArgs) {
3666		/* this is a non-multiboot entry, remove hyper args */
3667		for (i = firstElement; i < line->numElements; i++) {
3668		if (!strcmp(line->elements[i].item, "--"))
3669		break;
3670		}
3671		if (i < line->numElements) {
3672		/* remove args up to -- */
3673		while (strcmp
3674		(line->elements[firstElement].item,
3675		"--"))
3676		removeElement(line, firstElement);
3677		/* remove -- */
3678		removeElement(line, firstElement);
3679		}
3680		}
3681
3682		usedElements = calloc(line->numElements, sizeof(*usedElements));
3683
3684		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3685
3686	/* if we updated a root= here even though there is a	doreplace = 1;
3687	LT_ROOT available we need to remove the LT_ROOT entry	for (i = firstElement; i < line->numElements; i++) {
3688	(this will happen if we switch from a device to a label) */	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3689	if (useRoot && !strncmp(*arg, "root=", 5)) {	!strcmp(line->elements[i].item, "--")) {
3690	rootLine = entry->lines;	/* reached the end of hyper args, insert here */
3691	while (rootLine && rootLine->type != LT_ROOT)	doreplace = 0;
3692	rootLine = rootLine->next;	break;
3693	if (rootLine) {	}
3694	removeLine(entry, rootLine);	if (usedElements[i])
3695	}	continue;
3696	}	if (!argMatch(line->elements[i].item, *arg)) {
3697	}	usedElements[i] = 1;
3698	k++;	break;
3699	}	}
3700		}
3701	free(usedElements);
3702		if (i < line->numElements && doreplace) {
3703	/* no arguments to remove (i.e. no append line) */	/* direct replacement */
3704	if (!line) continue;	free(line->elements[i].item);
3705		line->elements[i].item = strdup(*arg);
3706	/* this won't remove an LT_ROOT item properly (but then again,
3707	who cares? */	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3708	for (arg = oldArgs; *arg; arg++) {	/* root= replacement */
3709	for (i = firstElement; i < line->numElements; i++)	rootLine = getLineByType(LT_ROOT, entry->lines);
3710	if (!argMatch(line->elements[i].item, *arg))	if (rootLine) {
3711	break;	free(rootLine->elements[1].item);
3712		rootLine->elements[1].item =
3713	if (i < line->numElements) {	strdup(*arg + 5);
3714	/* if this isn't the first argument the previous argument	} else {
3715	gets this arguments post-indention */	rootLine =
3716	if (i > firstElement) {	addLine(entry, cfg->cfi, LT_ROOT,
3717	free(line->elements[i - 1].indent);	cfg->secondaryIndent,
3718	line->elements[i - 1].indent = line->elements[i].indent;	*arg + 5);
3719		}
3720		}
3721
3722		else {
3723		/* insert/append */
3724		insertElement(line, *arg, i, cfg->cfi);
3725		usedElements =
3726		realloc(usedElements,
3727		line->numElements *
3728		sizeof(*usedElements));
3729		memmove(&usedElements[i + 1], &usedElements[i],
3730		line->numElements - i - 1);
3731		usedElements[i] = 1;
3732
3733		/* if we updated a root= here even though
3734		* there is a LT_ROOT available we need to
3735		* remove the LT_ROOT entry (this will happen
3736		* if we switch from a device to a label) */
3737		if (useRoot && !strncmp(*arg, "root=", 5)) {
3738		rootLine =
3739		getLineByType(LT_ROOT,
3740		entry->lines);
3741		if (rootLine)
3742		removeLine(entry, rootLine);
3743		}
3744		}
3745	}	}
	free(line->elements[i].item);
3746
3747	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3748
3749	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3750	}	for (i = firstElement; i < line->numElements; i++) {
3751	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3752		!strcmp(line->elements[i].item, "--"))
3753		/* reached the end of hyper args, stop here */
3754		break;
3755		if (!argMatch(line->elements[i].item, *arg)) {
3756		removeElement(line, i);
3757		break;
3758		}
3759		}
3760		/* handle removing LT_ROOT line too */
3761		if (useRoot && !strncmp(*arg, "root=", 5)) {
3762		rootLine = getLineByType(LT_ROOT, entry->lines);
3763		if (rootLine)
3764		removeLine(entry, rootLine);
3765		}
3766		}
3767
3768	if (line->numElements == 1) {	if (line->numElements == 1) {
3769	/* 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
3770	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3771	removeLine(entry, line);	removeLine(entry, line);
3772		}
3773	}	}
	}
3774
3775	free(usedArgs);	free(newArgs);
3776	free(newArgs);	free(oldArgs);
	free(oldArgs);
3777
3778	return 0;	return 0;
3779	}	}
3780
3781	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3782	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3783	const char * removeArgs,	const char *removeArgs,
3784	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3785	int rc = 0;	{
3786		int rc = 0;
3787	if (!image) return rc;
3788		if (!image)
3789	/* update the main args first... */	return rc;
3790	if (addArgs || removeArgs)
3791	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3792	if (rc) return rc;	if (addArgs || removeArgs)
3793		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3794	/* and now any multiboot args */	0);
3795	if (addMBArgs || removeMBArgs)	if (rc)
3796	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3797	return rc;
3798	}	/* and now any multiboot args */
3799		if (addMBArgs || removeMBArgs)
3800	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3801	int fd;	removeMBArgs, 1);
3802	unsigned char bootSect[512];	return rc;
3803	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3804
3805	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3806	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3807	device, strerror(errno));	const char *title)
3808	return 1;	{
3809	}	struct singleEntry *entry;
3810	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3811		int index = 0;
3812
3813		if (!image)
3814		return 0;
3815
3816		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3817		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3818		if (!kernelLine)
3819		continue;
3820
3821		/* if title is supplied, the entry's title must match it. */
3822		if (title) {
3823		char *linetitle;
3824
3825		line =
3826		getLineByType(LT_TITLE | LT_MENUENTRY,
3827		entry->lines);
3828		if (!line)
3829		continue;
3830
3831		linetitle = extractTitle(cfg, line);
3832		if (!linetitle)
3833		continue;
3834		if (strcmp(title, linetitle)) {
3835		free(linetitle);
3836		continue;
3837		}
3838		free(linetitle);
3839		}
3840
3841	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3842	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3843	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3844		initrd += prefixLen;
3845		}
3846		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3847		if (endLine)
3848		removeLine(entry, endLine);
3849		line =
3850		addLine(entry, cfg->cfi,
3851		preferredLineType(LT_MBMODULE, cfg->cfi),
3852		kernelLine->indent, initrd);
3853		if (!line)
3854		return 1;
3855		if (endLine) {
3856		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3857		if (!line)
3858		return 1;
3859		}
3860
3861	if (boot[1] == 0xeb) {	break;
3862	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;
	}
3863
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3864	return 0;	return 0;
3865		}
3866
3867		int updateInitrd(struct grubConfig *cfg, const char *image,
3868		const char *prefix, const char *initrd, const char *title)
3869		{
3870		struct singleEntry *entry;
3871		struct singleLine *line, *kernelLine, *endLine = NULL;
3872		int index = 0;
3873
3874		if (!image)
3875		return 0;
3876
3877		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3878		kernelLine =
3879		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3880		entry->lines);
3881		if (!kernelLine)
3882		continue;
3883
3884		/* if title is supplied, the entry's title must match it. */
3885		if (title) {
3886		char *linetitle;
3887
3888		line =
3889		getLineByType(LT_TITLE | LT_MENUENTRY,
3890		entry->lines);
3891		if (!line)
3892		continue;
3893
3894		linetitle = extractTitle(cfg, line);
3895		if (!linetitle)
3896		continue;
3897		if (strcmp(title, linetitle)) {
3898		free(linetitle);
3899		continue;
3900		}
3901		free(linetitle);
3902		}
3903
3904		line =
3905		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3906		entry->lines);
3907		if (line)
3908		removeLine(entry, line);
3909		if (prefix) {
3910		int prefixLen = strlen(prefix);
3911		if (!strncmp(initrd, prefix, prefixLen))
3912		initrd += prefixLen;
3913		}
3914		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3915		if (endLine)
3916		removeLine(entry, endLine);
3917		enum lineType_e lt;
3918		switch (kernelLine->type) {
3919		case LT_KERNEL:
3920		lt = LT_INITRD;
3921		break;
3922		case LT_KERNEL_EFI:
3923		lt = LT_INITRD_EFI;
3924		break;
3925		case LT_KERNEL_16:
3926		lt = LT_INITRD_16;
3927		break;
3928		default:
3929		lt = preferredLineType(LT_INITRD, cfg->cfi);
3930		}
3931		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3932		if (!line)
3933		return 1;
3934		if (endLine) {
3935		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3936		if (!line)
3937		return 1;
3938		}
3939
3940	return 2;	break;
3941		}
3942
3943		return 0;
3944	}	}
3945
3946	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3947	int fd;	{
3948	char buf[65536];	int fd;
3949	char * end;	unsigned char bootSect[512];
3950	char * chptr;	int offset;
3951	char * chptr2;
3952	int rc;	fd = open(device, O_RDONLY);
3953		if (fd < 0) {
3954		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3955		device, strerror(errno));
3956		return 1;
3957		}
3958
3959	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (read(fd, bootSect, 512) != 512) {
3960	*raw* devices listed in there */	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3961		device, strerror(errno));
3962		return 1;
3963		}
3964		close(fd);
3965
3966		/* first three bytes should match, a jmp short should be in there */
3967		if (memcmp(boot, bootSect, 3))
3968		return 0;
3969
3970		if (boot[1] == JMP_SHORT_OPCODE) {
3971		offset = boot[2] + 2;
3972		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3973		offset = (boot[3] << 8) + boot[2] + 2;
3974		} else if (boot[0] == JMP_SHORT_OPCODE) {
3975		offset = boot[1] + 2;
3976		/*
3977		* it looks like grub, when copying stage1 into the mbr,
3978		* patches stage1 right after the JMP location, replacing
3979		* other instructions such as JMPs for NOOPs. So, relax the
3980		* check a little bit by skipping those different bytes.
3981		*/
3982		if ((bootSect[offset + 1] == NOOP_OPCODE)
3983		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3984		offset = offset + 3;
3985		}
3986		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3987		offset = (boot[2] << 8) + boot[1] + 2;
3988		} else {
3989		return 0;
3990		}
3991
3992	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3993	mdDev += 5;	return 0;
3994
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
3995	return 2;	return 2;
3996	}	}
3997
3998	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3999	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
4000	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
4001	strerror(errno));	char buf[65536];
4002		char *end;
4003		char *chptr;
4004		char *chptr2;
4005		int rc;
4006
4007		/* it's on raid; we need to parse /proc/mdstat and check all of the
4008		*raw* devices listed in there */
4009
4010		if (!strncmp(mdDev, "/dev/", 5))
4011		mdDev += 5;
4012
4013		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4014		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4015		strerror(errno));
4016		return 2;
4017		}
4018
4019		rc = read(fd, buf, sizeof(buf) - 1);
4020		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4021		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4022		strerror(errno));
4023		close(fd);
4024		return 2;
4025		}
4026	close(fd);	close(fd);
4027	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
4028
4029	chptr = buf;	chptr = buf;
4030	while (*chptr) {	while (*chptr) {
4031	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
4032	if (!end) break;	if (!end)
4033	*end = '\0';	break;
4034		*end = '\0';
4035
4036		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4037		chptr[strlen(mdDev)] == ' ') {
4038
4039		/* found the device */
4040		while (*chptr && *chptr != ':')
4041		chptr++;
4042		chptr++;
4043		while (*chptr && isspace(*chptr))
4044		chptr++;
4045
4046		/* skip the "active" bit */
4047		while (*chptr && !isspace(*chptr))
4048		chptr++;
4049		while (*chptr && isspace(*chptr))
4050		chptr++;
4051
4052		/* skip the raid level */
4053		while (*chptr && !isspace(*chptr))
4054		chptr++;
4055		while (*chptr && isspace(*chptr))
4056		chptr++;
4057
4058		/* everything else is partition stuff */
4059		while (*chptr) {
4060		chptr2 = chptr;
4061		while (*chptr2 && *chptr2 != '[')
4062		chptr2++;
4063		if (!*chptr2)
4064		break;
4065
4066		/* yank off the numbers at the end */
4067		chptr2--;
4068		while (isdigit(*chptr2) && chptr2 > chptr)
4069		chptr2--;
4070		chptr2++;
4071		*chptr2 = '\0';
4072
4073		/* Better, now we need the /dev/ back. We're
4074		* done with everything before this point, so
4075		* we can just put the /dev/ part there.
4076		* There will always be room. */
4077		memcpy(chptr - 5, "/dev/", 5);
4078		rc = checkDeviceBootloader(chptr - 5, boot);
4079		if (rc != 2) {
4080		return rc;
4081		}
4082
4083		chptr = chptr2 + 1;
4084		/* skip the [11] bit */
4085		while (*chptr && !isspace(*chptr))
4086		chptr++;
4087		/* and move to the next one */
4088		while (*chptr && isspace(*chptr))
4089		chptr++;
4090		}
4091
4092	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
4093	chptr[strlen(mdDev)] == ' ') {	return 2;
4094		}
4095
4096	/* found the device */	chptr = end + 1;
4097	while (*chptr && *chptr != ':') chptr++;	}
	chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
4098
4099	/*  we're good to go */	fprintf(stderr,
4100	return 2;	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4101		mdDev);
4102		return 0;
4103		}
4104
4105		int checkForLilo(struct grubConfig *config)
4106		{
4107		int fd;
4108		unsigned char boot[512];
4109		struct singleLine *line;
4110
4111		for (line = config->theLines; line; line = line->next)
4112		if (line->type == LT_BOOT)
4113		break;
4114
4115		if (!line) {
4116		fprintf(stderr,
4117		_
4118		("grubby: no boot line found in lilo configuration\n"));
4119		return 1;
4120	}	}
4121
4122	chptr = end + 1;	if (line->numElements != 2)
4123	}	return 1;
4124
4125	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4126	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4127	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4128	return 0;	"/boot/boot.b", strerror(errno));
4129	}	return 1;
4130		}
4131
4132	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4133	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4134	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4135	struct singleLine * line;	return 1;
4136		}
4137	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;
	}
4138
4139	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4140		return checkLiloOnRaid(line->elements[1].item, boot);
4141
4142	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4143	if (fd < 0) {	}
4144	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4145	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4146	return 1;	{
4147	}	if (!access("/etc/grub.d/", R_OK))
4148		return 2;
4149
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4150	return 1;	return 1;
4151	}	}
4152	close(fd);
4153		int checkForGrub(struct grubConfig *config)
4154		{
4155		int fd;
4156		unsigned char bootSect[512];
4157		char *boot;
4158		int onSuse = isSuseSystem();
4159
4160		if (onSuse) {
4161		if (parseSuseGrubConf(NULL, &boot))
4162		return 0;
4163		} else {
4164		if (parseSysconfigGrub(NULL, &boot))
4165		return 0;
4166		}
4167
4168		/* assume grub is not installed -- not an error condition */
4169		if (!boot)
4170		return 0;
4171
4172		fd = open("/boot/grub/stage1", O_RDONLY);
4173		if (fd < 0)
4174		/* this doesn't exist if grub hasn't been installed */
4175		return 0;
4176
4177		if (read(fd, bootSect, 512) != 512) {
4178		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4179		"/boot/grub/stage1", strerror(errno));
4180		close(fd);
4181		return 1;
4182		}
4183		close(fd);
4184
4185	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* The more elaborate checks do not work on SuSE. The checks done
4186	return checkLiloOnRaid(line->elements[1].item, boot);	* seem to be reasonble (at least for now), so just return success
4187		*/
4188		if (onSuse)
4189		return 2;
4190
4191	return checkDeviceBootloader(line->elements[1].item, boot);	return checkDeviceBootloader(boot, bootSect);
4192	}	}
4193
4194	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4195	int fd;	{
4196	unsigned char bootSect[512];	int fd;
4197	char * boot;	unsigned char bootSect[512];
4198		char *boot;
4199		char executable[] = "/boot/extlinux/extlinux";
4200
4201		printf("entered: checkForExtLinux()\n");
4202
4203		if (parseSysconfigGrub(NULL, &boot))
4204		return 0;
4205
4206		/* assume grub is not installed -- not an error condition */
4207		if (!boot)
4208		return 0;
4209
4210		fd = open(executable, O_RDONLY);
4211		if (fd < 0)
4212		/* this doesn't exist if grub hasn't been installed */
4213		return 0;
4214
4215		if (read(fd, bootSect, 512) != 512) {
4216		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4217		executable, strerror(errno));
4218		return 1;
4219		}
4220		close(fd);
4221
4222	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4223	return 0;	}
4224
4225	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4226	if (!boot)	{
4227	return 0;	/*
4228		* This is a simplistic check that we consider good enough for own puporses
4229		*
4230		* If we were to properly check if yaboot is *installed* we'd need to:
4231		* 1) get the system boot device (LT_BOOT)
4232		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4233		*    the content on the boot device
4234		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4235		* 4) check again if binary and boot device contents match
4236		*/
4237		if (!access("/etc/yaboot.conf", R_OK))
4238		return 2;
4239
4240	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4241	if (fd < 0)	}
4242	/* this doesn't exist if grub hasn't been installed */
4243	return 0;	int checkForElilo(struct grubConfig *config)
4244		{
4245		if (!access("/etc/elilo.conf", R_OK))
4246		return 2;
4247
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4248	return 1;	return 1;
4249	}	}
	close(fd);
4250
4251	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4252		{
4253		char *idx, *rootspec = NULL;
4254
4255		if (*str == '(') {
4256		idx = rootspec = strdup(str);
4257		while (*idx && (*idx != ')') && (!isspace(*idx)))
4258		idx++;
4259		*(++idx) = '\0';
4260		}
4261		return rootspec;
4262	}	}
4263
4264	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4265	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4266		const char *newKernelInitrd,
4267		const char **extraInitrds, int extraInitrdCount)
4268		{
4269		char *initrdVal, *end;
4270		int i;
4271		size_t totalSize;
4272		size_t prefixLen;
4273		char separatorChar;
4274
4275		prefixLen = strlen(prefix);
4276		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4277
4278		for (i = 0; i < extraInitrdCount; i++) {
4279		totalSize += sizeof(separatorChar);
4280		totalSize += strlen(extraInitrds[i]) - prefixLen;
4281		}
4282
4283		initrdVal = end = malloc(totalSize);
4284
4285		end = stpcpy(end, newKernelInitrd + prefixLen);
4286
4287		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4288		for (i = 0; i < extraInitrdCount; i++) {
4289		const char *extraInitrd;
4290		int j;
4291
4292		extraInitrd = extraInitrds[i] + prefixLen;
4293		/* Don't add entries that are already there */
4294		if (tmplLine != NULL) {
4295		for (j = 2; j < tmplLine->numElements; j++)
4296		if (strcmp
4297		(extraInitrd,
4298		tmplLine->elements[j].item) == 0)
4299		break;
4300
4301	if (*str == '(') {	if (j != tmplLine->numElements)
4302	idx = rootspec = strdup(str);	continue;
4303	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4304	*(++idx) = '\0';
4305	}	*end++ = separatorChar;
4306	return rootspec;	end = stpcpy(end, extraInitrd);
4307		}
4308
4309		return initrdVal;
4310	}	}
4311
4312	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4313	const char * prefix,	const char *prefix,
4314	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4315	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4316	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4317	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4318	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4319	int needs;	{
4320	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4321	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4322	char * chptr;	int needs;
4323	int i;	char *indexs;
4324	enum lineType_e type;	char *chptr;
4325		int rc;
4326	if (!newKernelPath) return 0;
4327		if (!newKernelPath)
4328	/* if the newKernelTitle is too long silently munge it into something	return 0;
4329	* we can live with. truncating is first check, then we'll just mess with
4330	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4331	if (config->cfi->maxTitleLength &&	if (rc < 0)
4332		return 1;
4333
4334		/* if the newKernelTitle is too long silently munge it into something
4335		* we can live with. truncating is first check, then we'll just mess with
4336		* it until it looks better */
4337		if (config->cfi->maxTitleLength &&
4338	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4339	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4340	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4341	int i = 1;	int i = 1;
4342
4343		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4344		newKernelTitle);
4345		while (findEntryByPath(config, buf, NULL, NULL)) {
4346		sprintf(numBuf, "%d", i++);
4347		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4348		}
4349
4350	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);
4351	}	}
4352
4353	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4354	}	new->skip = 0;
4355		new->multiboot = 0;
4356		new->lines = NULL;
4357		entry = config->entries;
4358		for (unsigned int i = 0; i < newIndex; i++) {
4359		if (!entry)
4360		break;
4361		prev = entry;
4362		entry = entry->next;
4363		}
4364		new->next = entry;
4365
4366	new = malloc(sizeof(*new));	if (prev)
4367	new->skip = 0;	prev->next = new;
4368	new->multiboot = 0;	else
4369	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;
	}
4370
4371	if (template) {	/* copy/update from the template */
4372	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4373	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4374	if (tmplLine->numElements)	needs |= NEED_INITRD;
4375	indent = tmplLine->indent;	if (newMBKernel) {
4376		needs |= NEED_MB;
4377	/* skip comments */	new->multiboot = 1;
4378	chptr = tmplLine->indent;	}
4379	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4380	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4381
4382	/* we don't need an initrd here */	if (template) {
4383	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4384		masterLine && (tmplLine = lineDup(masterLine));
4385	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4386	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4387	struct singleLine *l;	tmplLine->type);
4388	needs &= ~ KERNEL_MB;
4389		/* skip comments */
4390	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4391	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4392	newMBKernel + strlen(prefix));	chptr++;
4393		if (*chptr == '#')
4394	tmplLine = lastLine;	continue;
4395	if (!new->lines) {
4396	new->lines = l;	if (iskernel(tmplLine->type)
4397	} else {	&& tmplLine->numElements >= 2) {
4398	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4399	newLine = l;	/* it's not a multiboot template and
4400	}	* this is the kernel line.  Try to
4401	continue;	* be intelligent about inserting the
4402	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4403	template->multiboot && !new->multiboot) {	*/
4404	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4405	}	/* insert the hypervisor first */
4406		newLine =
4407	if (!new->lines) {	addLine(new, config->cfi,
4408	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4409	new->lines = newLine;	tmplLine->indent,
4410	} else {	newMBKernel +
4411	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4412	newLine = newLine->next;	/* set up for adding the
4413	}	* kernel line */
4414		free(tmplLine->indent);
4415		tmplLine->indent =
4416	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4417	newLine->next = NULL;	secondaryIndent);
4418	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4419	newLine->numElements = tmplLine->numElements;	}
4420	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4421	newLine->numElements);	/* use addLineTmpl to
4422	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4423	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4424	newLine->elements[i].indent =	* call addLine.
4425	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4426	}	* making some changes to the
4427		* template such as the
4428	lastLine = tmplLine;	* indent change above and
4429	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4430	char * repl;	*/
4431	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4432	needs &= ~KERNEL_KERNEL;	getKeywordByType
4433	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4434	} else {	if (mbm_kw) {
4435	needs &= ~KERNEL_MB;	tmplLine->type =
4436	repl = newMBKernel;	LT_MBMODULE;
4437	}	free(tmplLine->
4438	if (new->multiboot && !template->multiboot) {	elements[0].item);
4439	free(newLine->elements[0].item);	tmplLine->elements[0].
4440	newLine->elements[0].item = strdup("module");	item =
4441	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4442	}	}
4443	free(newLine->elements[1].item);	newLine =
4444	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4445	if (rootspec != NULL) {	newLine,
4446	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4447	rootspec,	strlen(prefix),
4448	repl +	config->cfi);
4449	strlen(prefix));	needs &= ~NEED_KERNEL;
4450	} else {	}
4451	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4452	strlen(prefix));	newLine =
4453	}	addLine(new, config->cfi,
4454	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4455	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4456	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4457	if (!new->multiboot && template->multiboot) {	newMBKernel +
4458	free(newLine->elements[0].item);	strlen(prefix));
4459	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4460	newLine->type = LT_KERNEL;	}
4461	}	} else if (needs & NEED_KERNEL) {
4462	free(newLine->elements[1].item);	newLine =
4463	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4464	if (rootspec != NULL) {	newKernelPath +
4465	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4466	rootspec,	config->cfi);
4467	newKernelPath +	needs &= ~NEED_KERNEL;
4468	strlen(prefix));	}
4469	} else {
4470	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4471	strlen(prefix));	tmplLine->numElements >= 2) {
4472	}	if (needs & NEED_MB) {
4473	} else if (tmplLine->type == LT_INITRD &&	newLine =
4474	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4475	needs &= ~KERNEL_INITRD;	newMBKernel +
4476	free(newLine->elements[1].item);	strlen(prefix),
4477	if (new->multiboot && !template->multiboot) {	config->cfi);
4478	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4479	newLine->elements[0].item = strdup("module");	}
4480	newLine->type = LT_MBMODULE;
4481	}	} else if (tmplLine->type == LT_MBMODULE &&
4482	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4483	if (rootspec != NULL) {	if (new->multiboot) {
4484	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4485	rootspec,	newLine =
4486	newKernelInitrd +	addLineTmpl(new, tmplLine,
4487	strlen(prefix));	newLine,
4488	} else {	newKernelPath +
4489	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4490	strlen(prefix));	config->cfi);
4491	}	needs &= ~NEED_KERNEL;
4492	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4493	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4494	needs &= ~KERNEL_INITRD;	char *initrdVal;
4495	if (!new->multiboot && template->multiboot) {	initrdVal =
4496	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4497	newLine->elements[0].item = strdup("initrd");	tmplLine,
4498	newLine->type = LT_INITRD;	newKernelInitrd,
4499	}	extraInitrds,
4500	free(newLine->elements[1].item);	extraInitrdCount);
4501	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4502	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4503	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4504	rootspec,	initrdVal,
4505	newKernelInitrd +	config->cfi);
4506	strlen(prefix));	free(initrdVal);
4507	} else {	needs &= ~NEED_INITRD;
4508	newLine->elements[1].item = strdup(newKernelInitrd +	}
4509	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4510	}	/* template is multi but new is not,
4511	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4512	tmplLine->numElements >= 2) {	* module slot
4513	needs &= ~KERNEL_TITLE;	*/
4514		tmplLine->type =
4515	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4516	free(newLine->elements[i].item);	config->cfi);
4517	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4518	}	tmplLine->elements[0].item =
4519		strdup(getKeywordByType
4520	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4521	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4522	newLine->numElements = 2;	newLine =
4523	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4524	config->cfi->titleBracketed &&	newKernelPath +
4525	tmplLine->numElements == 1) {	strlen(prefix),
4526	needs &= ~KERNEL_TITLE;	config->cfi);
4527	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4528	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4529	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4530	newLine->numElements);	/* template is multi but new is not,
4531		* insert the initrd in the second
4532	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4533	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4534	newLine->elements[0].indent = strdup("");	tmplLine->type =
4535	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4536	}	config->cfi);
4537	}	free(tmplLine->elements[0].item);
4538	} else {	tmplLine->elements[0].item =
4539	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4540	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4541	break;	config->cfi)->key);
4542	}	initrdVal =
4543		getInitrdVal(config, prefix,
4544		tmplLine,
4545		newKernelInitrd,
4546		extraInitrds,
4547		extraInitrdCount);
4548		newLine =
4549		addLineTmpl(new, tmplLine, newLine,
4550		initrdVal, config->cfi);
4551		free(initrdVal);
4552		needs &= ~NEED_INITRD;
4553		}
4554
4555		} else if (isinitrd(tmplLine->type)
4556		&& tmplLine->numElements >= 2) {
4557		if (needs & NEED_INITRD && new->multiboot
4558		&& !template->multiboot
4559		&& config->cfi->mbInitRdIsModule) {
4560		/* make sure we don't insert the
4561		* module initrd before the module
4562		* kernel... if we don't do it here,
4563		* it will be inserted following the
4564		* template.
4565		*/
4566		if (!needs & NEED_KERNEL) {
4567		char *initrdVal;
4568
4569		initrdVal =
4570		getInitrdVal(config, prefix,
4571		tmplLine,
4572		newKernelInitrd,
4573		extraInitrds,
4574		extraInitrdCount);
4575		newLine =
4576		addLine(new, config->cfi,
4577		LT_MBMODULE,
4578		config->
4579		secondaryIndent,
4580		initrdVal);
4581		free(initrdVal);
4582		needs &= ~NEED_INITRD;
4583		}
4584		} else if (needs & NEED_INITRD) {
4585		char *initrdVal;
4586		initrdVal =
4587		getInitrdVal(config, prefix,
4588		tmplLine,
4589		newKernelInitrd,
4590		extraInitrds,
4591		extraInitrdCount);
4592		newLine =
4593		addLineTmpl(new, tmplLine, newLine,
4594		initrdVal, config->cfi);
4595		free(initrdVal);
4596		needs &= ~NEED_INITRD;
4597		}
4598
4599		} else if (tmplLine->type == LT_MENUENTRY &&
4600		(needs & NEED_TITLE)) {
4601		requote(tmplLine, config->cfi);
4602		char *nkt = malloc(strlen(newKernelTitle) + 3);
4603		strcpy(nkt, "'");
4604		strcat(nkt, newKernelTitle);
4605		strcat(nkt, "'");
4606		newLine =
4607		addLineTmpl(new, tmplLine, newLine, nkt,
4608		config->cfi);
4609		free(nkt);
4610		needs &= ~NEED_TITLE;
4611		} else if (tmplLine->type == LT_TITLE &&
4612		(needs & NEED_TITLE)) {
4613		if (tmplLine->numElements >= 2) {
4614		newLine =
4615		addLineTmpl(new, tmplLine, newLine,
4616		newKernelTitle,
4617		config->cfi);
4618		needs &= ~NEED_TITLE;
4619		} else if (tmplLine->numElements == 1 &&
4620		config->cfi->titleBracketed) {
4621		/* addLineTmpl doesn't handle
4622		* titleBracketed */
4623		newLine =
4624		addLine(new, config->cfi, LT_TITLE,
4625		tmplLine->indent,
4626		newKernelTitle);
4627		needs &= ~NEED_TITLE;
4628		}
4629		} else if (tmplLine->type == LT_ECHO) {
4630		requote(tmplLine, config->cfi);
4631		static const char *prefix = "'Loading ";
4632		if (tmplLine->numElements > 1 &&
4633		strstr(tmplLine->elements[1].item, prefix)
4634		&& masterLine->next
4635		&& iskernel(masterLine->next->type)) {
4636		char *newTitle =
4637		malloc(strlen(prefix) +
4638		strlen(newKernelTitle) + 2);
4639
4640		strcpy(newTitle, prefix);
4641		strcat(newTitle, newKernelTitle);
4642		strcat(newTitle, "'");
4643		newLine =
4644		addLine(new, config->cfi, LT_ECHO,
4645		tmplLine->indent, newTitle);
4646		free(newTitle);
4647		} else {
4648		/* pass through other lines from the
4649		* template */
4650		newLine =
4651		addLineTmpl(new, tmplLine, newLine,
4652		NULL, config->cfi);
4653		}
4654		} else if (tmplLine->type == LT_DEVTREE &&
4655		tmplLine->numElements == 2
4656		&& newDevTreePath) {
4657		newLine =
4658		addLineTmpl(new, tmplLine, newLine,
4659		newDevTreePath + strlen(prefix),
4660		config->cfi);
4661		needs &= ~NEED_DEVTREE;
4662		} else if (tmplLine->type == LT_ENTRY_END
4663		&& needs & NEED_DEVTREE) {
4664		const char *ndtp = newDevTreePath;
4665		if (!strncmp
4666		(newDevTreePath, prefix, strlen(prefix)))
4667		ndtp += strlen(prefix);
4668		newLine = addLine(new, config->cfi, LT_DEVTREE,
4669		config->secondaryIndent,
4670		ndtp);
4671		needs &= ~NEED_DEVTREE;
4672		newLine =
4673		addLineTmpl(new, tmplLine, newLine, NULL,
4674		config->cfi);
4675		} else {
4676		/* pass through other lines from the template */
4677		newLine =
4678		addLineTmpl(new, tmplLine, newLine, NULL,
4679		config->cfi);
4680		}
4681		}
4682
4683	switch (config->cfi->keywords[i].type) {	} else {
4684	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4685	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4686	type = LT_KERNEL; break;	*/
4687	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4688	type = LT_TITLE; break;	case LT_KERNEL:
4689	default:	case LT_KERNEL_EFI:
4690	/* zipl strikes again */	case LT_KERNEL_16:
4691	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4692	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4693	chptr = newKernelTitle;	} else {
4694	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4695	break;	preferredLineType(LT_KERNEL,
4696	} else {	config->
4697	abort();	cfi),
4698	}	config->primaryIndent,
4699	}	newKernelPath +
4700		strlen(prefix));
4701		needs &= ~NEED_KERNEL;
4702		break;
4703		}
4704
4705		case LT_HYPER:
4706		newLine = addLine(new, config->cfi, LT_HYPER,
4707		config->primaryIndent,
4708		newMBKernel + strlen(prefix));
4709		needs &= ~NEED_MB;
4710		break;
4711
4712		case LT_MENUENTRY:{
4713		char *nkt = malloc(strlen(newKernelTitle) + 3);
4714		strcpy(nkt, "'");
4715		strcat(nkt, newKernelTitle);
4716		strcat(nkt, "'");
4717		newLine =
4718		addLine(new, config->cfi, LT_MENUENTRY,
4719		config->primaryIndent, nkt);
4720		free(nkt);
4721		needs &= ~NEED_TITLE;
4722		needs |= NEED_END;
4723		break;
4724		}
4725		case LT_TITLE:
4726		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4727		char *templabel;
4728		int x = 0, y = 0;
4729
4730		templabel = strdup(newKernelTitle);
4731		while (templabel[x]) {
4732		if (templabel[x] == ' ') {
4733		y = x;
4734		while (templabel[y]) {
4735		templabel[y] =
4736		templabel[y + 1];
4737		y++;
4738		}
4739		}
4740		x++;
4741		}
4742		newLine = addLine(new, config->cfi, LT_TITLE,
4743		config->primaryIndent,
4744		templabel);
4745		free(templabel);
4746		} else {
4747		newLine = addLine(new, config->cfi, LT_TITLE,
4748		config->primaryIndent,
4749		newKernelTitle);
4750		}
4751		needs &= ~NEED_TITLE;
4752		break;
4753
4754	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	default:
4755	new->lines = newLine;	abort();
4756	}	}
4757		}
	if (new->multiboot) {
	if (needs & KERNEL_MB)
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	if (needs & KERNEL_KERNEL)
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	/* don't need to check for title as it's guaranteed to have been
	* done as we only do multiboot with grub which uses title as
	* a separator */
	if (needs & KERNEL_INITRD && newKernelInitrd)
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	newKernelInitrd + strlen(prefix));
	} else {
	if (needs & KERNEL_KERNEL)
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	if (needs & KERNEL_TITLE)
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	if (needs & KERNEL_INITRD && newKernelInitrd)
	newLine = addLine(new, config->cfi, LT_INITRD,
	config->secondaryIndent,
	newKernelInitrd + strlen(prefix));
	}
4758
4759	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	struct singleLine *endLine = NULL;
4760	newMBKernelArgs, NULL)) return 1;	endLine = getLineByType(LT_ENTRY_END, new->lines);
4761		if (endLine) {
4762		removeLine(new, endLine);
4763		needs |= NEED_END;
4764		}
4765
4766		/* add the remainder of the lines, i.e. those that either
4767		* weren't present in the template, or in the case of no template,
4768		* all the lines following the entryStart.
4769		*/
4770		if (needs & NEED_TITLE) {
4771		newLine = addLine(new, config->cfi, LT_TITLE,
4772		config->secondaryIndent, newKernelTitle);
4773		needs &= ~NEED_TITLE;
4774		}
4775		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4776		newLine = addLine(new, config->cfi, LT_HYPER,
4777		config->secondaryIndent,
4778		newMBKernel + strlen(prefix));
4779		needs &= ~NEED_MB;
4780		}
4781		if (needs & NEED_KERNEL) {
4782		newLine = addLine(new, config->cfi,
4783		(new->multiboot
4784		&& getKeywordByType(LT_MBMODULE,
4785		config->cfi))
4786		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4787		config->
4788		cfi),
4789		config->secondaryIndent,
4790		newKernelPath + strlen(prefix));
4791		needs &= ~NEED_KERNEL;
4792		}
4793		if (needs & NEED_MB) {
4794		newLine = addLine(new, config->cfi, LT_HYPER,
4795		config->secondaryIndent,
4796		newMBKernel + strlen(prefix));
4797		needs &= ~NEED_MB;
4798		}
4799		if (needs & NEED_INITRD) {
4800		char *initrdVal;
4801		initrdVal =
4802		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4803		extraInitrds, extraInitrdCount);
4804		newLine =
4805		addLine(new, config->cfi,
4806		(new->multiboot
4807		&& getKeywordByType(LT_MBMODULE, config->cfi))
4808		? LT_MBMODULE : preferredLineType(LT_INITRD,
4809		config->cfi),
4810		config->secondaryIndent, initrdVal);
4811		free(initrdVal);
4812		needs &= ~NEED_INITRD;
4813		}
4814		if (needs & NEED_DEVTREE) {
4815		newLine = addLine(new, config->cfi, LT_DEVTREE,
4816		config->secondaryIndent, newDevTreePath);
4817		needs &= ~NEED_DEVTREE;
4818		}
4819
4820		/* NEEDS_END must be last on bootloaders that need it... */
4821		if (needs & NEED_END) {
4822		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4823		config->secondaryIndent, NULL);
4824		needs &= ~NEED_END;
4825		}
4826
4827		if (needs) {
4828		printf(_("grubby: needs=%d, aborting\n"), needs);
4829		abort();
4830		}
4831
4832		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4833		newMBKernelArgs, NULL)) {
4834		config->isModified = 1;
4835		return 1;
4836		}
4837
4838	return 0;	return 0;
4839	}	}
4840
4841	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4842	poptContext optCon;	{
4843	char * grubConfig = NULL;	poptContext optCon;
4844	char * outputFile = NULL;	const char *grubConfig = NULL;
4845	int arg = 0;	char *outputFile = NULL;
4846	int flags = 0;	int arg = 0;
4847	int badImageOkay = 0;	int flags = 0;
4848	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4849	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4850	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4851	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4852	char * newKernelPath = NULL;	int configureExtLinux = 0;
4853	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4854	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4855	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4856	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4857	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4858	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4859	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4860	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4861	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4862	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4863	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4864	char * removeArgs = NULL;	int newIndex = 0;
4865	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4866	const char * chptr = NULL;	char *removeMBKernel = NULL;
4867	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4868	struct grubConfig * config;	char *defaultKernel = NULL;
4869	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4870	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4871	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4872	struct poptOption options[] = {	char *envPath = NULL;
4873	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4874	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4875	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4876	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4877	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4878	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4879	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4880	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4881	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4882	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4883	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4884	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4885	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4886	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4887	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4888	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4889	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4890	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4891	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4892		"new arguments for multiboot kernel being updated"), NULL},
4893		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4894		_
4895		("don't sanity check images in boot entries (for testing only)"),
4896		NULL},
4897		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4898		_
4899		("filesystem which contains /boot directory (for testing only)"),
4900		_("bootfs")},
4901		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4902		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4903		_("check which bootloader is installed on boot sector")},
4904	#endif	#endif
4905	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4906	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4907	_("path") },	_("path")},
4908	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4909	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4910	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4911	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4912	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4913	"template"), NULL },	"template"), NULL},
4914	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4915	_("display the path of the default kernel") },	_("print debugging information for failures")},
4916	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4917	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4918	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4919	_("configure grub bootloader") },	_("display the index of the default kernel")},
4920	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4921	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4922	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4923	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4924	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4925	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4926	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4927	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4928	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4929	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4930	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4931	_("path") },	_("path for environment data"),
4932	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4933	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4934	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4935	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4936	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4937	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4938	_("kernel-path") },	_("configure grub2 bootloader")},
4939	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4940	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4941	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4942	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4943	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4944	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4945	_("configure silo bootloader") },	_
4946	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4947	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4948	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4949	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4950	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4951	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4952	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4953	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4954	_("configure yaboot bootloader") },	_("path")},
4955	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4956	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4957	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4958	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4959	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4960		_("remove all entries for the specified kernel"),
4961	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4962	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4963		_("remove all entries for the specified multiboot kernel"),
4964	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4965	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4966	case 'v':	_("make the first entry referencing the specified kernel "
4967	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
4968	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4969	break;	_("make the given entry index the default entry"),
4970		_("entry-index")},
4971		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4972		_("use the given index when creating a new entry"),
4973		_("entry-index")},
4974		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4975		_("configure silo bootloader")},
4976		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4977		_("title to use for the new kernel entry"), _("entry-title")},
4978		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4979		_("updated information for the specified kernel"),
4980		_("kernel-path")},
4981		{"version", 'v', 0, NULL, 'v',
4982		_("print the version of this program and exit"), NULL},
4983		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4984		_("configure yaboot bootloader")},
4985		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4986		_("configure zipl bootloader")},
4987		POPT_AUTOHELP {0, 0, 0, 0, 0}
4988		};
4989
4990		useextlinuxmenu = 0;
4991
4992		int i = 0;
4993		for (int j = 1; j < argc; j++)
4994		i += strlen(argv[j]) + 1;
4995		saved_command_line = malloc(i);
4996		if (!saved_command_line) {
4997		fprintf(stderr, "grubby: %m\n");
4998		exit(1);
4999		}
5000		saved_command_line[0] = '\0';
5001		for (int j = 1; j < argc; j++) {
5002		strcat(saved_command_line, argv[j]);
5003		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5004		}
5005
5006		optCon = poptGetContext("grubby", argc, argv, options, 0);
5007		poptReadDefaultConfig(optCon, 1);
5008
5009		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5010		switch (arg) {
5011		case 'v':
5012		printf("grubby version %s\n", VERSION);
5013		exit(0);
5014		break;
5015		case 'i':
5016		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5017		extraInitrds[extraInitrdCount++] =
5018		strdup(poptGetOptArg(optCon));
5019		} else {
5020		fprintf(stderr,
5021		_
5022		("grubby: extra initrd maximum is %d\n"),
5023		extraInitrdCount);
5024		return 1;
5025		}
5026		break;
5027		}
5028	}	}
	}
5029
5030	if (arg < -1) {	if (arg < -1) {
5031	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5032	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5033	poptStrerror(arg));	poptStrerror(arg));
5034	return 1;	return 1;
5035	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5036
5037	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5038	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5039	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
5040	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;
	}
5041
5042	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5043	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
5044	cfi = &eliloConfigType;	configureExtLinux) > 1) {
5045	#elif __powerpc__	fprintf(stderr,
5046	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
5047	#elif __sparc__	return 1;
5048	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
5049	#elif __s390__	fprintf(stderr,
5050	cfi = &ziplConfigType;	_
5051	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
5052	cfi = &ziplConfigtype;	return 1;
5053	#else	} else if (configureGrub2) {
5054	cfi = &grubConfigType;	cfi = &grub2ConfigType;
5055	#endif	if (envPath)
5056	}	cfi->envFile = envPath;
5057		} else if (configureLilo) {
5058		cfi = &liloConfigType;
5059		} else if (configureGrub) {
5060		cfi = &grubConfigType;
5061		} else if (configureELilo) {
5062		cfi = &eliloConfigType;
5063		} else if (configureYaboot) {
5064		cfi = &yabootConfigType;
5065		} else if (configureSilo) {
5066		cfi = &siloConfigType;
5067		} else if (configureZipl) {
5068		cfi = &ziplConfigType;
5069		} else if (configureExtLinux) {
5070		cfi = &extlinuxConfigType;
5071		useextlinuxmenu = 1;
5072		}
5073
5074		if (!cfi) {
5075		if (grub2FindConfig(&grub2ConfigType)) {
5076		cfi = &grub2ConfigType;
5077		if (envPath)
5078		cfi->envFile = envPath;
5079		} else
5080		#ifdef __ia64__
5081		cfi = &eliloConfigType;
5082		#elif __powerpc__
5083		cfi = &yabootConfigType;
5084		#elif __sparc__
5085		cfi = &siloConfigType;
5086		#elif __s390__
5087		cfi = &ziplConfigType;
5088		#elif __s390x__
5089		cfi = &ziplConfigtype;
5090		#else
5091		cfi = &grubConfigType;
5092		#endif
5093		}
5094
5095	if (!grubConfig)	if (!grubConfig) {
5096	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
5097		grubConfig = cfi->findConfig(cfi);
5098		if (!grubConfig)
5099		grubConfig = cfi->defaultConfig;
5100		}
5101
5102	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5103	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5104	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5105	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5106		|| (defaultIndex >= 0))) {
5107		fprintf(stderr,
5108		_("grubby: --bootloader-probe may not be used with "
5109	"specified option"));	"specified option"));
5110	return 1;	return 1;
5111	}	}
5112
5113	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5114	removeKernelPath)) {	removeKernelPath)) {
5115	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5116	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5117	return 1;	return 1;
5118	}	}
5119
5120	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5121	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5122	return 1;	return 1;
5123	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5124	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5125	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5126	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5127	return 1;	return 1;
5128	}	}
5129
5130	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5131	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5132	"not be used together"));	"not be used together"));
5133	return 1;	return 1;
5134	}	}
5135
5136	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5137	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5138		"may not be used together\n"));
5139		return 1;
5140		} else if (defaultKernel && removeKernelPath &&
5141		!strcmp(defaultKernel, removeKernelPath)) {
5142		fprintf(stderr,
5143		_("grubby: cannot make removed kernel the default\n"));
5144		return 1;
5145		} else if (defaultKernel && newKernelPath &&
5146		!strcmp(defaultKernel, newKernelPath)) {
5147		makeDefault = 1;
5148		defaultKernel = NULL;
5149		} else if (defaultKernel && (defaultIndex >= 0)) {
5150		fprintf(stderr,
5151		_("grubby: --set-default and --set-default-index "
5152	"may not be used together\n"));	"may not be used together\n"));
5153	return 1;	return 1;
5154	} 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;
	}
5155
5156	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5157	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5158	"is used\n"));	_("grubby: output file must be specified if stdin "
5159	return 1;	"is used\n"));
5160	}	return 1;
5161		}
5162
5163	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5164	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5165	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5166	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5167	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5168	}	return 1;
5169		}
5170
5171		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5172
5173	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	if (cfi->needsBootPrefix) {
5174		if (!bootPrefix) {
5175		bootPrefix = findBootPrefix();
5176		if (!bootPrefix)
5177		return 1;
5178		} else {
5179		/* this shouldn't end with a / */
5180		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5181		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5182		}
5183		} else {
5184		bootPrefix = "";
5185		}
5186
5187	if (cfi->needsBootPrefix) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5188	if (!bootPrefix) {	fprintf(stderr,
5189	bootPrefix = findBootPrefix();	_("grubby: %s doesn't allow multiple initrds\n"),
5190	if (!bootPrefix) return 1;	cfi->defaultConfig);
5191	} else {	return 1;
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5192	}	}
	} else {
	bootPrefix = "";
	}
5193
5194	if (bootloaderProbe) {	if (bootloaderProbe) {
5195	int lrc = 0, grc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5196	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5197
5198	if (!access(grubConfigType.defaultConfig, F_OK)) {	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5199	gconfig = readConfig(grubConfigType.defaultConfig, &grubConfigType);	if (grub2config) {
5200	if (!gconfig)	gconfig = readConfig(grub2config, &grub2ConfigType);
5201	grc = 1;	if (!gconfig)
5202	else	gr2c = 1;
5203	grc = checkForGrub(gconfig);	else
5204	}	gr2c = checkForGrub2(gconfig);
5205		}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
5206
5207	if (lrc == 1 || grc == 1) return 1;	const char *grubconfig = grubFindConfig(&grubConfigType);
5208		if (!access(grubconfig, F_OK)) {
5209		gconfig = readConfig(grubconfig, &grubConfigType);
5210		if (!gconfig)
5211		grc = 1;
5212		else
5213		grc = checkForGrub(gconfig);
5214		}
5215
5216	if (lrc == 2) printf("lilo\n");	if (!access(liloConfigType.defaultConfig, F_OK)) {
5217	if (grc == 2) printf("grub\n");	lconfig =
5218		readConfig(liloConfigType.defaultConfig,
5219		&liloConfigType);
5220		if (!lconfig)
5221		lrc = 1;
5222		else
5223		lrc = checkForLilo(lconfig);
5224		}
5225
5226	return 0;	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5227	}	econfig = readConfig(eliloConfigType.defaultConfig,
5228		&eliloConfigType);
5229		if (!econfig)
5230		erc = 1;
5231		else
5232		erc = checkForElilo(econfig);
5233		}
5234
5235	config = readConfig(grubConfig, cfi);	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5236	if (!config) return 1;	lconfig =
5237		readConfig(extlinuxConfigType.defaultConfig,
5238		&extlinuxConfigType);
5239		if (!lconfig)
5240		extrc = 1;
5241		else
5242		extrc = checkForExtLinux(lconfig);
5243		}
5244
5245	if (displayDefault) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5246	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5247	struct singleEntry * entry;	&yabootConfigType);
5248	char * rootspec;	if (!yconfig)
5249		yrc = 1;
5250	if (config->defaultImage == -1) return 0;	else
5251	entry = findEntryByIndex(config, config->defaultImage);	yrc = checkForYaboot(yconfig);
5252	if (!entry) return 0;	}
	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));
5253
5254	return 0;	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5255	} else if (kernelInfo)	|| erc == 1)
5256	return displayInfo(config, kernelInfo, bootPrefix);	return 1;
5257
5258		if (lrc == 2)
5259		printf("lilo\n");
5260		if (gr2c == 2)
5261		printf("grub2\n");
5262		if (grc == 2)
5263		printf("grub\n");
5264		if (extrc == 2)
5265		printf("extlinux\n");
5266		if (yrc == 2)
5267		printf("yaboot\n");
5268		if (erc == 2)
5269		printf("elilo\n");
5270
5271		return 0;
5272		}
5273
5274		if (grubConfig == NULL) {
5275		printf("Could not find bootloader configuration file.\n");
5276		exit(1);
5277		}
5278
5279	if (copyDefault) {	config = readConfig(grubConfig, cfi);
5280	template = findTemplate(config, bootPrefix, NULL, 0, flags);	if (!config)
5281	if (!template) return 1;	return 1;
	}
5282
5283	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5284	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5285	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5286	bootPrefix, flags);	char *rootspec;
5287	setFallbackImage(config, newKernelPath != NULL);
5288	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5289	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5290	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5291	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5292	newMBKernel, newMBKernelArgs)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5293		entry = findEntryByIndex(config, config->defaultImage);
5294		if (!entry)
5295	if (numEntries(config) == 0) {	return 0;
5296	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	if (!suitableImage(entry, bootPrefix, 0, flags))
5297	"Not writing out new config.\n"));	return 0;
5298	return 1;
5299	}	line =
5300		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5301		LT_KERNEL_16, entry->lines);
5302		if (!line)
5303		return 0;
5304
5305		rootspec = getRootSpecifier(line->elements[1].item);
5306		printf("%s%s\n", bootPrefix, line->elements[1].item +
5307		((rootspec != NULL) ? strlen(rootspec) : 0));
5308
5309		return 0;
5310
5311		} else if (displayDefaultTitle) {
5312		struct singleLine *line;
5313		struct singleEntry *entry;
5314
5315		if (config->defaultImage == NO_DEFAULT_ENTRY)
5316		return 0;
5317		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5318		cfi->defaultIsSaved)
5319		config->defaultImage = FIRST_ENTRY_INDEX;
5320		entry = findEntryByIndex(config, config->defaultImage);
5321		if (!entry)
5322		return 0;
5323
5324		if (!configureGrub2) {
5325		char *title;
5326		line = getLineByType(LT_TITLE, entry->lines);
5327		if (!line)
5328		return 0;
5329		title = extractTitle(config, line);
5330		if (!title)
5331		return 0;
5332		printf("%s\n", title);
5333		free(title);
5334		} else {
5335		char *title;
5336
5337		dbgPrintf
5338		("This is GRUB2, default title is embeded in menuentry\n");
5339		line = getLineByType(LT_MENUENTRY, entry->lines);
5340		if (!line)
5341		return 0;
5342		title = grub2ExtractTitle(line);
5343		if (title)
5344		printf("%s\n", title);
5345		}
5346		return 0;
5347
5348		} else if (displayDefaultIndex) {
5349		if (config->defaultImage == NO_DEFAULT_ENTRY)
5350		return 0;
5351		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5352		cfi->defaultIsSaved)
5353		config->defaultImage = FIRST_ENTRY_INDEX;
5354		printf("%i\n", config->defaultImage);
5355		return 0;
5356
5357		} else if (kernelInfo)
5358		return displayInfo(config, kernelInfo, bootPrefix);
5359
5360		if (copyDefault) {
5361		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5362		if (!template)
5363		return 1;
5364		}
5365
5366		markRemovedImage(config, removeKernelPath, bootPrefix);
5367		markRemovedImage(config, removeMBKernel, bootPrefix);
5368		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5369		makeDefault, bootPrefix, flags, defaultIndex,
5370		newIndex);
5371		setFallbackImage(config, newKernelPath != NULL);
5372		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5373		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5374		return 1;
5375		if (updateKernelPath && newKernelInitrd) {
5376		if (newMBKernel) {
5377		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5378		bootPrefix, newKernelInitrd,
5379		newKernelTitle))
5380		return 1;
5381		} else {
5382		if (updateInitrd(config, updateKernelPath, bootPrefix,
5383		newKernelInitrd, newKernelTitle))
5384		return 1;
5385		}
5386		}
5387		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5388		newKernelTitle, newKernelArgs, newKernelInitrd,
5389		(const char **)extraInitrds, extraInitrdCount,
5390		newMBKernel, newMBKernelArgs, newDevTreePath,
5391		newIndex))
5392		return 1;
5393
5394		if (numEntries(config) == 0) {
5395		fprintf(stderr,
5396		_("grubby: doing this would leave no kernel entries. "
5397		"Not writing out new config.\n"));
5398		return 1;
5399		}
5400
5401	if (!outputFile)	if (!outputFile)
5402	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5403
5404	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5405	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3027