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 3031 by niro, Tue Jun 27 14:48:09 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		indexToVerify = newDefaultBootEntryIndex;
2543
2544		/* user chose to make latest boot entry the default */
2545		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2546		config->defaultImage = newBootEntryIndex;
2547		return;
2548		}
2549
2550		/* the user picks the default index based on the
2551		* order of the bootloader configuration after
2552		* modification; ensure we are checking for the
2553		* existence of the correct entry */
2554		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2555		if (!config->isModified)
2556		indexToVerify--;
2557		}
2558
2559		/* verify the user selected index will exist */
2560		if (findEntryByIndex(config, indexToVerify)) {
2561		config->defaultImage = newDefaultBootEntryIndex;
2562		} else {
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564		}
2565
2566		return;
2567		}
2568
2569		/* handle cases where the index value may shift */
2570
2571		/* check validity of existing default or first-entry-found
2572		selection */
2573		if (defaultKernelPath) {
2574		/* we must initialize this */
2575		firstKernelEntryIndex = 0;
2576		/* user requested first-entry-found */
2577		if (!findEntryByPath(config, defaultKernelPath,
2578		prefix, &firstKernelEntryIndex)) {
2579		/* don't change default if can't find match */
2580		config->defaultImage = NO_DEFAULT_ENTRY;
2581		return;
2582		}
2583
2584		config->defaultImage = firstKernelEntryIndex;
2585
2586		/* this is where we start looking for decrement later */
2587		currentLookupIndex = config->defaultImage;
2588
2589		if (isAddingBootEntry && !config->isModified &&
2590		(newBootEntryIndex < config->defaultImage)) {
2591		/* increment because new entry added before default */
2592		config->defaultImage++;
2593		}
2594	} else {	} else {
2595	config->defaultImage = -1;	/* check to see if the default is stored in the environment */
2596	return;	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2597		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2598		{
2599		if (config->cfi->defaultIsSaved) {
2600		if (config->cfi->getEnv) {
2601		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2602
2603		if (defaultTitle) {
2604		if (isnumber(defaultTitle)) {
2605		currentLookupIndex = atoi(defaultTitle);
2606		} else {
2607		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2608		}
2609		/* set the default Image to an actual index */
2610		config->defaultImage = currentLookupIndex;
2611		}
2612		}
2613		}
2614		}
2615		} else {
2616		/* use pre-existing default entry from the file*/
2617		currentLookupIndex = config->defaultImage;
2618		}
2619
2620		if (isAddingBootEntry
2621		&& (newBootEntryIndex <= config->defaultImage)) {
2622		config->defaultImage++;
2623
2624		if (config->isModified) {
2625		currentLookupIndex++;
2626		}
2627		}
2628		}
2629
2630		/* sanity check - is this entry index valid? */
2631		bootEntry = findEntryByIndex(config, currentLookupIndex);
2632
2633		if ((bootEntry && bootEntry->skip) || !bootEntry) {
2634		/* entry is to be skipped or is invalid */
2635		if (isAddingBootEntry) {
2636		config->defaultImage = newBootEntryIndex;
2637		return;
2638		}
2639		newDefault =
2640		findTemplate(config, prefix, &config->defaultImage, 1,
2641		flags);
2642		if (!newDefault) {
2643		config->defaultImage = NO_DEFAULT_ENTRY;
2644		}
2645
2646		return;
2647	}	}
	}
2648
2649	/* defaultImage now points to what we'd like to use, but before any order	currentLookupIndex--;
2650	changes */
2651	if (config->defaultImage == DEFAULT_SAVED)	/* decrement index by the total number of entries deleted */
2652	/* default is set to saved, we don't want to change it */
2653	return;	for (indexToVerify = currentLookupIndex;
2654		indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2655	if (config->defaultImage > -1)
2656	entry = findEntryByIndex(config, config->defaultImage);	bootEntry = findEntryByIndex(config, indexToVerify);
2657	else
2658	entry = NULL;	if (bootEntry && bootEntry->skip) {
2659		config->defaultImage--;
2660		}
2661		}
2662		}
2663
2664		void setFallbackImage(struct grubConfig *config, int hasNew)
2665		{
2666		struct singleEntry *entry, *entry2;
2667		int j;
2668
2669		if (config->fallbackImage == -1)
2670		return;
2671
2672		entry = findEntryByIndex(config, config->fallbackImage);
2673		if (!entry || entry->skip) {
2674		config->fallbackImage = -1;
2675		return;
2676		}
2677
	if (entry && !entry->skip) {
	/* we can preserve the default */
2678	if (hasNew)	if (hasNew)
2679	config->defaultImage++;	config->fallbackImage++;
2680
2681	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2682	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2683	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2684	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2685	}	config->fallbackImage--;
2686	} 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;
	}
2687	}	}
2688
2689	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2690	struct singleEntry * entry, * entry2;	{
2691	int j;	struct singleLine *line;
2692		char *root = NULL;
2693	if (config->fallbackImage == -1) return;	int i;
2694		int j;
2695	entry = findEntryByIndex(config, config->fallbackImage);
2696	if (!entry || entry->skip) {	printf("index=%d\n", index);
2697	config->fallbackImage = -1;
2698	return;	line =
2699	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2700		entry->lines);
2701		if (!line) {
2702		printf("non linux entry\n");
2703		return;
2704		}
2705
2706	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2707	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2708		else
2709	/* 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--;
	}
	}
2710
2711	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2712	struct singleLine * line;	printf("args=\"");
2713	char * root = NULL;	i = 2;
2714	int i;	while (i < line->numElements) {
2715		if (!strncmp(line->elements[i].item, "root=", 5)) {
2716	line = entry->lines;	root = line->elements[i].item + 5;
2717	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2718		printf("%s%s", line->elements[i].item,
2719	printf("index=%d\n", index);	line->elements[i].indent);
2720		}
2721	printf("kernel=%s\n", line->elements[1].item);
2722		i++;
2723	if (line->numElements >= 3) {	}
2724	printf("args=\"");	printf("\"\n");
2725	i = 2;	} else {
2726	while (i < line->numElements) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2727	if (!strncmp(line->elements[i].item, "root=", 5)) {	if (line) {
2728	root = line->elements[i].item + 5;	char *s;
2729	} else {
2730	printf("%s%s", line->elements[i].item,	printf("args=\"");
2731	line->elements[i].indent);	i = 1;
2732	}	while (i < line->numElements) {
2733		if (!strncmp
2734		(line->elements[i].item, "root=", 5)) {
2735		root = line->elements[i].item + 5;
2736		} else {
2737		s = line->elements[i].item;
2738
2739		printf("%s%s", s,
2740		line->elements[i].indent);
2741		}
2742
2743		i++;
2744		}
2745
2746		s = line->elements[i - 1].indent;
2747		printf("\"\n");
2748		}
2749		}
2750
2751		if (!root) {
2752		line = getLineByType(LT_ROOT, entry->lines);
2753		if (line && line->numElements >= 2)
2754		root = line->elements[1].item;
2755		}
2756
2757		if (root) {
2758		char *s = alloca(strlen(root) + 1);
2759
2760		strcpy(s, root);
2761		if (s[strlen(s) - 1] == '"')
2762		s[strlen(s) - 1] = '\0';
2763		/* make sure the root doesn't have a trailing " */
2764		printf("root=%s\n", s);
2765		}
2766
2767		line =
2768		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2769		entry->lines);
2770
2771	i++;	if (line && line->numElements >= 2) {
2772		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2773		printf("initrd=");
2774		else
2775		printf("initrd=%s", prefix);
2776
2777		for (i = 1; i < line->numElements; i++)
2778		printf("%s%s", line->elements[i].item,
2779		line->elements[i].indent);
2780		printf("\n");
2781	}	}
2782	printf("\"\n");
2783	} else {	line = getLineByType(LT_TITLE, entry->lines);
	line = entry->lines;
	while (line && line->type != LT_KERNELARGS) line=line->next;
2784	if (line) {	if (line) {
2785	char * s;	char *entryTitle;
2786		/* if we can extractTitle, then it's a zipl config and
2787		* if not then we go ahead with what's existed prior */
2788		entryTitle = extractTitle(config, line);
2789		if (!entryTitle) {
2790		entryTitle=line->elements[1].item;
2791		}
2792		printf("title=%s\n", entryTitle);
2793		} else {
2794		char *title;
2795		line = getLineByType(LT_MENUENTRY, entry->lines);
2796		if (line) {
2797		title = grub2ExtractTitle(line);
2798		if (title)
2799		printf("title=%s\n", title);
2800		}
2801		}
2802
2803		for (j = 0, line = entry->lines; line; line = line->next) {
2804		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2805		if (!strncmp
2806		(prefix, line->elements[1].item, strlen(prefix)))
2807		printf("mbmodule%d=", j);
2808		else
2809		printf("mbmodule%d=%s", j, prefix);
2810
2811		for (i = 1; i < line->numElements; i++)
2812		printf("%s%s", line->elements[i].item,
2813		line->elements[i].indent);
2814		printf("\n");
2815		j++;
2816		}
2817		}
2818		}
2819
2820		int isSuseSystem(void)
2821		{
2822		const char *path;
2823		const static char default_path[] = "/etc/SuSE-release";
2824
2825		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2826		path = default_path;
2827
2828		if (!access(path, R_OK))
2829		return 1;
2830		return 0;
2831		}
2832
2833		int isSuseGrubConf(const char *path)
2834		{
2835		FILE *grubConf;
2836		char *line = NULL;
2837		size_t len = 0, res = 0;
2838
2839		grubConf = fopen(path, "r");
2840		if (!grubConf) {
2841		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2842		path);
2843		return 0;
2844		}
2845
2846		while ((res = getline(&line, &len, grubConf)) != -1) {
2847		if (!strncmp(line, "setup", 5)) {
2848		fclose(grubConf);
2849		free(line);
2850		return 1;
2851		}
2852		}
2853
2854		dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2855		path);
2856
2857		fclose(grubConf);
2858		free(line);
2859		return 0;
2860		}
2861
2862		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2863		{
2864		FILE *grubConf;
2865		char *line = NULL;
2866		size_t res = 0, len = 0;
2867
2868		if (!path)
2869		return 1;
2870		if (!lbaPtr)
2871		return 1;
2872
2873		grubConf = fopen(path, "r");
2874		if (!grubConf)
2875		return 1;
2876
2877		while ((res = getline(&line, &len, grubConf)) != -1) {
2878		if (line[res - 1] == '\n')
2879		line[res - 1] = '\0';
2880		else if (len > res)
2881		line[res] = '\0';
2882		else {
2883		line = realloc(line, res + 1);
2884		line[res] = '\0';
2885		}
2886
2887		if (!strncmp(line, "setup", 5)) {
2888		if (strstr(line, "--force-lba")) {
2889		*lbaPtr = 1;
2890		} else {
2891		*lbaPtr = 0;
2892		}
2893		dbgPrintf("lba: %i\n", *lbaPtr);
2894		break;
2895		}
2896		}
2897
2898		free(line);
2899		fclose(grubConf);
2900		return 0;
2901		}
2902
2903	printf("args=\"");	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2904	i = 1;	{
2905	while (i < line->numElements) {	FILE *grubConf;
2906	if (!strncmp(line->elements[i].item, "root=", 5)) {	char *line = NULL;
2907	root = line->elements[i].item + 5;	size_t res = 0, len = 0;
2908		char *lastParamPtr = NULL;
2909		char *secLastParamPtr = NULL;
2910		char installDeviceNumber = '\0';
2911		char *bounds = NULL;
2912
2913		if (!path)
2914		return 1;
2915		if (!devicePtr)
2916		return 1;
2917
2918		grubConf = fopen(path, "r");
2919		if (!grubConf)
2920		return 1;
2921
2922		while ((res = getline(&line, &len, grubConf)) != -1) {
2923		if (strncmp(line, "setup", 5))
2924		continue;
2925
2926		if (line[res - 1] == '\n')
2927		line[res - 1] = '\0';
2928		else if (len > res)
2929		line[res] = '\0';
2930		else {
2931		line = realloc(line, res + 1);
2932		line[res] = '\0';
2933		}
2934
2935		lastParamPtr = bounds = line + res;
2936
2937		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2938		while (!isspace(*lastParamPtr))
2939		lastParamPtr--;
2940		lastParamPtr++;
2941
2942		secLastParamPtr = lastParamPtr - 2;
2943		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2944
2945		if (lastParamPtr + 3 > bounds) {
2946		dbgPrintf("lastParamPtr going over boundary");
2947		fclose(grubConf);
2948		free(line);
2949		return 1;
2950		}
2951		if (!strncmp(lastParamPtr, "(hd", 3))
2952		lastParamPtr += 3;
2953		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2954
2955		/*
2956		* Second last parameter will decide wether last parameter is
2957		* an IMAGE_DEVICE or INSTALL_DEVICE
2958		*/
2959		while (!isspace(*secLastParamPtr))
2960		secLastParamPtr--;
2961		secLastParamPtr++;
2962
2963		if (secLastParamPtr + 3 > bounds) {
2964		dbgPrintf("secLastParamPtr going over boundary");
2965		fclose(grubConf);
2966		free(line);
2967		return 1;
2968		}
2969		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2970		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2971		secLastParamPtr += 3;
2972		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2973		installDeviceNumber = *secLastParamPtr;
2974	} else {	} else {
2975	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
2976		}
2977
2978	printf("%s%s", s, line->elements[i].indent);	*devicePtr = malloc(6);
2979		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2980		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2981		fclose(grubConf);
2982		free(line);
2983		return 0;
2984		}
2985
2986		free(line);
2987		fclose(grubConf);
2988		return 1;
2989		}
2990
2991		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2992		{
2993		FILE *deviceMap;
2994		char *line = NULL;
2995		size_t res = 0, len = 0;
2996		char *devicePtr;
2997		char *bounds = NULL;
2998		const char *path;
2999		const static char default_path[] = "/boot/grub/device.map";
3000
3001		if (!device)
3002		return 1;
3003		if (!bootPtr)
3004		return 1;
3005
3006		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3007		path = default_path;
3008
3009		dbgPrintf("opening grub device.map file from: %s\n", path);
3010		deviceMap = fopen(path, "r");
3011		if (!deviceMap)
3012		return 1;
3013
3014		while ((res = getline(&line, &len, deviceMap)) != -1) {
3015		if (!strncmp(line, "#", 1))
3016		continue;
3017
3018		if (line[res - 1] == '\n')
3019		line[res - 1] = '\0';
3020		else if (len > res)
3021		line[res] = '\0';
3022		else {
3023		line = realloc(line, res + 1);
3024		line[res] = '\0';
3025	}	}
3026
3027	i++;	devicePtr = line;
3028	}	bounds = line + res;
3029
3030	s = line->elements[i - 1].indent;	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3031	printf("\"\n");	devicePtr++;
3032		dbgPrintf("device: %s\n", devicePtr);
3033
3034		if (!strncmp(devicePtr, device, strlen(device))) {
3035		devicePtr += strlen(device);
3036		while (isspace(*devicePtr)
3037		&& ((devicePtr + 1) <= bounds))
3038		devicePtr++;
3039
3040		*bootPtr = strdup(devicePtr);
3041		break;
3042		}
3043	}	}
	}
3044
3045	if (!root) {	free(line);
3046	line = entry->lines;	fclose(deviceMap);
3047	while (line && line->type != LT_ROOT) line = line->next;	return 0;
3048		}
3049
3050	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3051	root=line->elements[1].item;	{
3052	}	char *grubDevice;
3053
3054	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3055	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
3056		else
3057	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);
	}
3058
3059	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3060	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
3061		else
3062		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3063
3064	if (line && line->numElements >= 2) {	free(grubDevice);
3065	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");
	}
3066	}	}
3067
3068	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3069	FILE * in;	{
3070	char buf[1024];	/*
3071	char * chptr;	* This SuSE grub configuration file at this location is not your
3072	char * start;	* average grub configuration file, but instead the grub commands
3073	char * param;	* used to setup grub on that system.
3074		*/
3075	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
3076	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);
	}
3077
3078	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3079		path = default_path;
3080
3081	return 0;	if (!isSuseGrubConf(path))
3082		return 1;
3083
3084		if (lbaPtr) {
3085		*lbaPtr = 0;
3086		if (suseGrubConfGetLba(path, lbaPtr))
3087		return 1;
3088		}
3089
3090		if (bootPtr) {
3091		*bootPtr = NULL;
3092		suseGrubConfGetBoot(path, bootPtr);
3093		}
3094
3095		return 0;
3096	}	}
3097
3098	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3099	char * boot;	{
3100	int lba;	FILE *in;
3101		char buf[1024];
3102	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
3103	if (lba) printf("lba\n");	char *start;
3104	if (boot) printf("boot=%s\n", boot);	char *param;
3105	}
3106		in = fopen("/etc/sysconfig/grub", "r");
3107		if (!in)
3108		return 1;
3109
3110		if (lbaPtr)
3111		*lbaPtr = 0;
3112		if (bootPtr)
3113		*bootPtr = NULL;
3114
3115		while (fgets(buf, sizeof(buf), in)) {
3116		start = buf;
3117		while (isspace(*start))
3118		start++;
3119		if (*start == '#')
3120		continue;
3121
3122		chptr = strchr(start, '=');
3123		if (!chptr)
3124		continue;
3125		chptr--;
3126		while (*chptr && isspace(*chptr))
3127		chptr--;
3128		chptr++;
3129		*chptr = '\0';
3130
3131		param = chptr + 1;
3132		while (*param && isspace(*param))
3133		param++;
3134		if (*param == '=') {
3135		param++;
3136		while (*param && isspace(*param))
3137		param++;
3138		}
3139
3140		chptr = param;
3141		while (*chptr && !isspace(*chptr))
3142		chptr++;
3143		*chptr = '\0';
3144
3145		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3146		*lbaPtr = 1;
3147		else if (!strcmp(start, "boot") && bootPtr)
3148		*bootPtr = strdup(param);
3149		}
3150
3151		fclose(in);
3152
3153		return 0;
3154	}	}
3155
3156	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3157	const char * prefix) {	{
3158	int i = 0;	char *boot = NULL;
3159	struct singleEntry * entry;	int lba;
3160	struct singleLine * line;
3161		if (isSuseSystem()) {
3162	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3163	if (!entry) {	free(boot);
3164	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3165	return 1;	}
3166	}	} else {
3167		if (parseSysconfigGrub(&lba, &boot)) {
3168		free(boot);
3169		return;
3170		}
3171		}
3172
3173	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3174	be a better way */	printf("lba\n");
3175	if (config->cfi == &grubConfigType) {	if (boot) {
3176	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3177	} 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);
3178	}	}
3179		}
3180
3181	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3182	while (line && line->type != LT_LBA) line = line->next;	{
3183	if (line) printf("lba\n");	int i = 0;
3184	}	struct singleEntry *entry;
3185		struct singleLine *line;
3186
3187		entry = findEntryByPath(config, kernel, prefix, &i);
3188		if (!entry) {
3189		fprintf(stderr, _("grubby: kernel not found\n"));
3190		return 1;
3191		}
3192
3193		/* this is a horrible hack to support /etc/sysconfig/grub; there must
3194		be a better way */
3195		if (config->cfi == &grubConfigType) {
3196		dumpSysconfigGrub();
3197		} else {
3198		line = getLineByType(LT_BOOT, config->theLines);
3199		if (line && line->numElements >= 1) {
3200		printf("boot=%s\n", line->elements[1].item);
3201		}
3202
3203		line = getLineByType(LT_LBA, config->theLines);
3204		if (line)
3205		printf("lba\n");
3206		}
3207
3208	displayEntry(entry, prefix, i);	displayEntry(config, entry, prefix, i);
3209
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
3210	i++;	i++;
3211	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3212		displayEntry(config, entry, prefix, i);
3213		i++;
3214		}
3215
3216	return 0;	return 0;
3217		}
3218
3219		struct singleLine *addLineTmpl(struct singleEntry *entry,
3220		struct singleLine *tmplLine,
3221		struct singleLine *prevLine,
3222		const char *val, struct configFileInfo *cfi)
3223		{
3224		struct singleLine *newLine = lineDup(tmplLine);
3225
3226		if (isEfi && cfi == &grub2ConfigType) {
3227		enum lineType_e old = newLine->type;
3228		newLine->type = preferredLineType(newLine->type, cfi);
3229		if (old != newLine->type)
3230		newLine->elements[0].item =
3231		getKeyByType(newLine->type, cfi);
3232		}
3233
3234		if (val) {
3235		/* override the inherited value with our own.
3236		* This is a little weak because it only applies to elements[1]
3237		*/
3238		if (newLine->numElements > 1)
3239		removeElement(newLine, 1);
3240		insertElement(newLine, val, 1, cfi);
3241
3242		/* but try to keep the rootspec from the template... sigh */
3243		if (tmplLine->
3244		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3245		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3246		LT_INITRD_16)) {
3247		char *rootspec =
3248		getRootSpecifier(tmplLine->elements[1].item);
3249		if (rootspec != NULL) {
3250		free(newLine->elements[1].item);
3251		newLine->elements[1].item =
3252		sdupprintf("%s%s", rootspec, val);
3253		}
3254		}
3255		}
3256
3257		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3258		newLine->elements[0].item : "");
3259
3260		if (!entry->lines) {
3261		/* first one on the list */
3262		entry->lines = newLine;
3263		} else if (prevLine) {
3264		/* add after prevLine */
3265		newLine->next = prevLine->next;
3266		prevLine->next = newLine;
3267		}
3268
3269		return newLine;
3270	}	}
3271
3272	/* val may be NULL */	/* val may be NULL */
3273	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3274	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3275	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3276	char * val) {	const char *val)
3277	struct singleLine * line, * prev;	{
3278	int i;	struct singleLine *line, *prev;
3279		struct keywordTypes *kw;
3280	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3281	if (cfi->keywords[i].type == type) break;
3282	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3283	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3284		*/
3285	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3286	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3287	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3288	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3289	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3290	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3291	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3292	prev = NULL;	tmpl.elements[0].indent = "";
3293	while (line) {	val = NULL;
3294	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3295	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3296		if (!val) {
3297		fprintf(stderr,
3298		"Line type LT_MENUENTRY requires a value\n");
3299		abort();
3300		}
3301		kw = getKeywordByType(type, cfi);
3302		if (!kw) {
3303		fprintf(stderr,
3304		"Looking up keyword for unknown type %d\n",
3305		type);
3306		abort();
3307		}
3308		tmpl.indent = "";
3309		tmpl.type = type;
3310		tmpl.numElements = 3;
3311		tmpl.elements =
3312		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3313		tmpl.elements[0].item = kw->key;
3314		tmpl.elements[0].indent = alloca(2);
3315		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3316		tmpl.elements[1].item = (char *)val;
3317		tmpl.elements[1].indent = alloca(2);
3318		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3319		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3320		strcpy(tmpl.elements[2].item, lineend);
3321		tmpl.elements[2].indent = "";
3322		} else {
3323		kw = getKeywordByType(type, cfi);
3324		if (!kw) {
3325		fprintf(stderr,
3326		"Looking up keyword for unknown type %d\n",
3327		type);
3328		abort();
3329		}
3330		tmpl.type = type;
3331		tmpl.numElements = val ? 2 : 1;
3332		tmpl.elements =
3333		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3334		tmpl.elements[0].item = kw->key;
3335		tmpl.elements[0].indent = alloca(2);
3336		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3337		if (val) {
3338		tmpl.elements[1].item = (char *)val;
3339		tmpl.elements[1].indent = "";
3340		}
3341	}	}
	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;
3342
3343	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3344	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3345	else	* which may not be ideal? If there are no lines or we are looking at
3346	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3347	} else {	* indented differently from the rest) */
3348	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3349	line->indent = strdup(defaultIndent);	if (line->numElements)
3350	line->next = NULL;	prev = line;
3351	}	/* fall back on the last line if prev isn't otherwise set */
3352		if (!line->next && !prev)
3353		prev = line;
3354		}
3355
3356		struct singleLine *menuEntry;
3357		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3358		if (tmpl.type == LT_ENTRY_END) {
3359		if (menuEntry)
3360		tmpl.indent = menuEntry->indent;
3361		else
3362		tmpl.indent = defaultIndent ? : "";
3363		} else if (tmpl.type != LT_MENUENTRY) {
3364		if (menuEntry)
3365		tmpl.indent = "\t";
3366		else if (prev == entry->lines)
3367		tmpl.indent = defaultIndent ? : "";
3368		else
3369		tmpl.indent = prev->indent;
3370		}
3371
3372	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3373	line->type = type;	}
3374	line->numElements = val ? 2 : 1;
3375	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3376	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3377	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3378	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
3379	line->elements[0].indent[1] = '\0';
3380		for (i = 0; i < line->numElements; i++) {
3381	if (val) {	free(line->elements[i].item);
3382	line->elements[1].item = val;	free(line->elements[i].indent);
3383	line->elements[1].indent = strdup("");	}
3384	}	free(line->elements);
3385	} 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("");
	}
3386
3387	return line;	if (line == entry->lines) {
3388		entry->lines = line->next;
3389		} else {
3390		prev = entry->lines;
3391		while (prev->next != line)
3392		prev = prev->next;
3393		prev->next = line->next;
3394		}
3395
3396		free(line);
3397	}	}
3398
3399	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3400	struct singleLine * prev;	{
3401	int i;	struct singleLine newLine = {
3402		.indent = tmplLine->indent,
3403		.type = tmplLine->type,
3404		.next = tmplLine->next,
3405		};
3406		int firstQuotedItem = -1;
3407		int quoteLen = 0;
3408		int j;
3409		int element = 0;
3410		char *c;
3411
3412		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3413		strcpy(c, tmplLine->elements[0].item);
3414		insertElement(&newLine, c, element++, cfi);
3415		free(c);
3416		c = NULL;
3417
3418		for (j = 1; j < tmplLine->numElements; j++) {
3419		if (firstQuotedItem == -1) {
3420		quoteLen += strlen(tmplLine->elements[j].item);
3421
3422		if (isquote(tmplLine->elements[j].item[0])) {
3423		firstQuotedItem = j;
3424		quoteLen +=
3425		strlen(tmplLine->elements[j].indent);
3426		} else {
3427		c = malloc(quoteLen + 1);
3428		strcpy(c, tmplLine->elements[j].item);
3429		insertElement(&newLine, c, element++, cfi);
3430		free(c);
3431		quoteLen = 0;
3432		}
3433		} else {
3434		int itemlen = strlen(tmplLine->elements[j].item);
3435		quoteLen += itemlen;
3436		quoteLen += strlen(tmplLine->elements[j].indent);
3437
3438		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3439		c = malloc(quoteLen + 1);
3440		c[0] = '\0';
3441		for (int i = firstQuotedItem; i < j + 1; i++) {
3442		strcat(c, tmplLine->elements[i].item);
3443		strcat(c, tmplLine->elements[i].indent);
3444		}
3445		insertElement(&newLine, c, element++, cfi);
3446		free(c);
3447
3448		firstQuotedItem = -1;
3449		quoteLen = 0;
3450		}
3451		}
3452		}
3453		while (tmplLine->numElements)
3454		removeElement(tmplLine, 0);
3455		if (tmplLine->elements)
3456		free(tmplLine->elements);
3457
3458	for (i = 0; i < line->numElements; i++) {	tmplLine->numElements = newLine.numElements;
3459	free(line->elements[i].item);	tmplLine->elements = newLine.elements;
3460	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
3461
3462	if (line == entry->lines) {	static void insertElement(struct singleLine *line,
3463	entry->lines = line->next;	const char *item, int insertHere,
3464	} else {	struct configFileInfo *cfi)
3465	prev = entry->lines;	{
3466	while (prev->next != line) prev = prev->next;	struct keywordTypes *kw;
3467	prev->next = line->next;	char indent[2] = "";
3468	}
3469		/* sanity check */
3470		if (insertHere > line->numElements) {
3471		dbgPrintf
3472		("insertElement() adjusting insertHere from %d to %d\n",
3473		insertHere, line->numElements);
3474		insertHere = line->numElements;
3475		}
3476
3477		line->elements = realloc(line->elements, (line->numElements + 1) *
3478		sizeof(*line->elements));
3479		memmove(&line->elements[insertHere + 1],
3480		&line->elements[insertHere],
3481		(line->numElements - insertHere) * sizeof(*line->elements));
3482		line->elements[insertHere].item = strdup(item);
3483
3484		kw = getKeywordByType(line->type, cfi);
3485
3486		if (line->numElements == 0) {
3487		indent[0] = '\0';
3488		} else if (insertHere == 0) {
3489		indent[0] = kw->nextChar;
3490		} else if (kw->separatorChar != '\0') {
3491		indent[0] = kw->separatorChar;
3492		} else {
3493		indent[0] = ' ';
3494		}
3495
3496		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3497		/* move the end-of-line forward */
3498		line->elements[insertHere].indent =
3499		line->elements[insertHere - 1].indent;
3500		line->elements[insertHere - 1].indent = strdup(indent);
3501		} else {
3502		line->elements[insertHere].indent = strdup(indent);
3503		}
3504
3505		line->numElements++;
3506
3507	free(line);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3508		line->elements[0].item,
3509		line->elements[insertHere].item,
3510		line->elements[insertHere].indent, insertHere);
3511	}	}
3512
3513	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3514	char * first, * second;	{
3515	char * chptr;	int i;
3516
3517	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3518	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3519		return;
3520	chptr = strchr(first, '=');
3521	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3522		removeHere, line->elements[removeHere].item);
3523	chptr = strchr(second, '=');
3524	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3525
3526	return strcmp(first, second);	if (removeHere > 1) {
3527	}	/* previous argument gets this argument's post-indentation */
3528		free(line->elements[removeHere - 1].indent);
3529	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3530	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3531	const char * removeArgs, int multibootArgs) {	} else {
3532	struct singleEntry * entry;	free(line->elements[removeHere].indent);
3533	struct singleLine * line, * rootLine;	}
3534	int index = 0;
3535	int i, j, k;	/* now collapse the array, but don't bother to realloc smaller */
3536	const char ** newArgs, ** oldArgs;	for (i = removeHere; i < line->numElements - 1; i++)
3537	const char ** arg;	line->elements[i] = line->elements[i + 1];
3538	const char * chptr;
3539	int useKernelArgs = 0;	line->numElements--;
3540	int useRoot = 0;	}
3541	int firstElement;
3542	int *usedElements, *usedArgs;	int argMatch(const char *one, const char *two)
3543		{
3544	if (!image) return 0;	char *first, *second;
3545		char *chptr;
3546	if (!addArgs) {
3547	newArgs = malloc(sizeof(*newArgs));	first = strcpy(alloca(strlen(one) + 1), one);
3548	*newArgs = NULL;	second = strcpy(alloca(strlen(two) + 1), two);
3549	} else {
3550	if (poptParseArgvString(addArgs, NULL, &newArgs)) {	chptr = strchr(first, '=');
3551	fprintf(stderr,	if (chptr)
3552	_("grubby: error separating arguments '%s'\n"), addArgs);	*chptr = '\0';
3553	return 1;
3554		chptr = strchr(second, '=');
3555		if (chptr)
3556		*chptr = '\0';
3557
3558		return strcmp(first, second);
3559		}
3560
3561		int updateActualImage(struct grubConfig *cfg, const char *image,
3562		const char *prefix, const char *addArgs,
3563		const char *removeArgs, int multibootArgs)
3564		{
3565		struct singleEntry *entry;
3566		struct singleLine *line, *rootLine;
3567		int index = 0;
3568		int i, k;
3569		const char **newArgs, **oldArgs;
3570		const char **arg;
3571		int useKernelArgs, useRoot;
3572		int firstElement;
3573		int *usedElements;
3574		int doreplace;
3575
3576		if (!image)
3577		return 0;
3578
3579		if (!addArgs) {
3580		newArgs = malloc(sizeof(*newArgs));
3581		*newArgs = NULL;
3582		} else {
3583		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3584		fprintf(stderr,
3585		_("grubby: error separating arguments '%s'\n"),
3586		addArgs);
3587		return 1;
3588		}
3589	}	}
	}
3590
3591	if (!removeArgs) {	if (!removeArgs) {
3592	oldArgs = malloc(sizeof(*oldArgs));	oldArgs = malloc(sizeof(*oldArgs));
3593	*oldArgs = NULL;	*oldArgs = NULL;
3594	} else {	} else {
3595	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3596	fprintf(stderr,	fprintf(stderr,
3597	_("grubby: error separating arguments '%s'\n"), removeArgs);	_("grubby: error separating arguments '%s'\n"),
3598	free(newArgs);	removeArgs);
3599	return 1;	free(newArgs);
3600		return 1;
3601		}
3602	}	}
	}
3603
3604	for (i = 0; cfg->cfi->keywords[i].key; i++)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3605	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3606
3607	if (cfg->cfi->keywords[i].key)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3608	useKernelArgs = 1;	&& !multibootArgs);
3609
3610	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;
3611
3612	if (cfg->cfi->keywords[i].key)	if (multibootArgs && !entry->multiboot)
3613	useRoot = 1;	continue;
3614
3615	k = 0;	/* Determine where to put the args.  If this config supports
3616	for (arg = newArgs; *arg; arg++)	* LT_KERNELARGS, use that.  Otherwise use
3617	k++;	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3618	usedArgs = calloc(k, sizeof(int));	*/
3619		if (useKernelArgs) {
3620	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	line = getLineByType(LT_KERNELARGS, entry->lines);
3621	index++;	if (!line) {
3622		/* no LT_KERNELARGS, need to add it */
3623	line = entry->lines;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3624	while (line && line->type != LT_KERNEL) line = line->next;	cfg->secondaryIndent, NULL);
3625	if (!line) continue;	}
3626	firstElement = 2;	firstElement = 1;
3627
3628	if (entry->multiboot && !multibootArgs) {	} else if (multibootArgs) {
3629	/* first mb module line is the real kernel */	line = getLineByType(LT_HYPER, entry->lines);
3630	while (line && line->type != LT_MBMODULE) line = line->next;	if (!line) {
3631	firstElement = 2;	/* a multiboot entry without LT_HYPER? */
3632	} else if (useKernelArgs) {	continue;
3633	while (line && line->type != LT_KERNELARGS) line = line->next;	}
3634	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, '=');
3635
	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(" ");
3636	} else {	} else {
3637	/* First thing on this line; treat a bit differently. Note	line =
3638	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3639	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3640	line->elements[line->numElements].indent = strdup("");	entry->lines);
3641		if (!line) {
3642		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3643		continue;
3644		}
3645		firstElement = 2;
3646	}	}
3647
3648	line->numElements++;	/* handle the elilo case which does:
3649		*   append="hypervisor args -- kernel args"
3650		*/
3651		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3652		/* this is a multiboot entry, make sure there's
3653		* -- on the args line
3654		*/
3655		for (i = firstElement; i < line->numElements; i++) {
3656		if (!strcmp(line->elements[i].item, "--"))
3657		break;
3658		}
3659		if (i == line->numElements) {
3660		/* assume all existing args are kernel args,
3661		* prepend -- to make it official
3662		*/
3663		insertElement(line, "--", firstElement,
3664		cfg->cfi);
3665		i = firstElement;
3666		}
3667		if (!multibootArgs) {
3668		/* kernel args start after the -- */
3669		firstElement = i + 1;
3670		}
3671		} else if (cfg->cfi->mbConcatArgs) {
3672		/* this is a non-multiboot entry, remove hyper args */
3673		for (i = firstElement; i < line->numElements; i++) {
3674		if (!strcmp(line->elements[i].item, "--"))
3675		break;
3676		}
3677		if (i < line->numElements) {
3678		/* remove args up to -- */
3679		while (strcmp
3680		(line->elements[firstElement].item,
3681		"--"))
3682		removeElement(line, firstElement);
3683		/* remove -- */
3684		removeElement(line, firstElement);
3685		}
3686		}
3687
3688		usedElements = calloc(line->numElements, sizeof(*usedElements));
3689
3690		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3691
3692	/* if we updated a root= here even though there is a	doreplace = 1;
3693	LT_ROOT available we need to remove the LT_ROOT entry	for (i = firstElement; i < line->numElements; i++) {
3694	(this will happen if we switch from a device to a label) */	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3695	if (useRoot && !strncmp(*arg, "root=", 5)) {	!strcmp(line->elements[i].item, "--")) {
3696	rootLine = entry->lines;	/* reached the end of hyper args, insert here */
3697	while (rootLine && rootLine->type != LT_ROOT)	doreplace = 0;
3698	rootLine = rootLine->next;	break;
3699	if (rootLine) {	}
3700	removeLine(entry, rootLine);	if (usedElements[i])
3701	}	continue;
3702	}	if (!argMatch(line->elements[i].item, *arg)) {
3703	}	usedElements[i] = 1;
3704	k++;	break;
3705	}	}
3706		}
3707	free(usedElements);
3708		if (i < line->numElements && doreplace) {
3709	/* no arguments to remove (i.e. no append line) */	/* direct replacement */
3710	if (!line) continue;	free(line->elements[i].item);
3711		line->elements[i].item = strdup(*arg);
3712	/* this won't remove an LT_ROOT item properly (but then again,
3713	who cares? */	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3714	for (arg = oldArgs; *arg; arg++) {	/* root= replacement */
3715	for (i = firstElement; i < line->numElements; i++)	rootLine = getLineByType(LT_ROOT, entry->lines);
3716	if (!argMatch(line->elements[i].item, *arg))	if (rootLine) {
3717	break;	free(rootLine->elements[1].item);
3718		rootLine->elements[1].item =
3719	if (i < line->numElements) {	strdup(*arg + 5);
3720	/* if this isn't the first argument the previous argument	} else {
3721	gets this arguments post-indention */	rootLine =
3722	if (i > firstElement) {	addLine(entry, cfg->cfi, LT_ROOT,
3723	free(line->elements[i - 1].indent);	cfg->secondaryIndent,
3724	line->elements[i - 1].indent = line->elements[i].indent;	*arg + 5);
3725		}
3726		}
3727
3728		else {
3729		/* insert/append */
3730		insertElement(line, *arg, i, cfg->cfi);
3731		usedElements =
3732		realloc(usedElements,
3733		line->numElements *
3734		sizeof(*usedElements));
3735		memmove(&usedElements[i + 1], &usedElements[i],
3736		line->numElements - i - 1);
3737		usedElements[i] = 1;
3738
3739		/* if we updated a root= here even though
3740		* there is a LT_ROOT available we need to
3741		* remove the LT_ROOT entry (this will happen
3742		* if we switch from a device to a label) */
3743		if (useRoot && !strncmp(*arg, "root=", 5)) {
3744		rootLine =
3745		getLineByType(LT_ROOT,
3746		entry->lines);
3747		if (rootLine)
3748		removeLine(entry, rootLine);
3749		}
3750		}
3751	}	}
	free(line->elements[i].item);
3752
3753	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3754
3755	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3756	}	for (i = firstElement; i < line->numElements; i++) {
3757	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3758		!strcmp(line->elements[i].item, "--"))
3759		/* reached the end of hyper args, stop here */
3760		break;
3761		if (!argMatch(line->elements[i].item, *arg)) {
3762		removeElement(line, i);
3763		break;
3764		}
3765		}
3766		/* handle removing LT_ROOT line too */
3767		if (useRoot && !strncmp(*arg, "root=", 5)) {
3768		rootLine = getLineByType(LT_ROOT, entry->lines);
3769		if (rootLine)
3770		removeLine(entry, rootLine);
3771		}
3772		}
3773
3774	if (line->numElements == 1) {	if (line->numElements == 1) {
3775	/* 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
3776	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3777	removeLine(entry, line);	removeLine(entry, line);
3778		}
3779	}	}
	}
3780
3781	free(usedArgs);	free(newArgs);
3782	free(newArgs);	free(oldArgs);
	free(oldArgs);
3783
3784	return 0;	return 0;
3785	}	}
3786
3787	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3788	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3789	const char * removeArgs,	const char *removeArgs,
3790	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3791	int rc = 0;	{
3792		int rc = 0;
3793	if (!image) return rc;
3794		if (!image)
3795	/* update the main args first... */	return rc;
3796	if (addArgs || removeArgs)
3797	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3798	if (rc) return rc;	if (addArgs || removeArgs)
3799		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3800	/* and now any multiboot args */	0);
3801	if (addMBArgs || removeMBArgs)	if (rc)
3802	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3803	return rc;
3804	}	/* and now any multiboot args */
3805		if (addMBArgs || removeMBArgs)
3806	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3807	int fd;	removeMBArgs, 1);
3808	unsigned char bootSect[512];	return rc;
3809	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3810
3811	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3812	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3813	device, strerror(errno));	const char *title)
3814	return 1;	{
3815	}	struct singleEntry *entry;
3816	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3817		int index = 0;
3818
3819		if (!image)
3820		return 0;
3821
3822		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3823		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3824		if (!kernelLine)
3825		continue;
3826
3827		/* if title is supplied, the entry's title must match it. */
3828		if (title) {
3829		char *linetitle;
3830
3831		line =
3832		getLineByType(LT_TITLE | LT_MENUENTRY,
3833		entry->lines);
3834		if (!line)
3835		continue;
3836
3837		linetitle = extractTitle(cfg, line);
3838		if (!linetitle)
3839		continue;
3840		if (strcmp(title, linetitle)) {
3841		free(linetitle);
3842		continue;
3843		}
3844		free(linetitle);
3845		}
3846
3847	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3848	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3849	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3850		initrd += prefixLen;
3851		}
3852		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3853		if (endLine)
3854		removeLine(entry, endLine);
3855		line =
3856		addLine(entry, cfg->cfi,
3857		preferredLineType(LT_MBMODULE, cfg->cfi),
3858		kernelLine->indent, initrd);
3859		if (!line)
3860		return 1;
3861		if (endLine) {
3862		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3863		if (!line)
3864		return 1;
3865		}
3866
3867	if (boot[1] == 0xeb) {	break;
3868	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;
	}
3869
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3870	return 0;	return 0;
3871		}
3872
3873		int updateInitrd(struct grubConfig *cfg, const char *image,
3874		const char *prefix, const char *initrd, const char *title)
3875		{
3876		struct singleEntry *entry;
3877		struct singleLine *line, *kernelLine, *endLine = NULL;
3878		int index = 0;
3879
3880		if (!image)
3881		return 0;
3882
3883		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3884		kernelLine =
3885		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3886		entry->lines);
3887		if (!kernelLine)
3888		continue;
3889
3890		/* if title is supplied, the entry's title must match it. */
3891		if (title) {
3892		char *linetitle;
3893
3894		line =
3895		getLineByType(LT_TITLE | LT_MENUENTRY,
3896		entry->lines);
3897		if (!line)
3898		continue;
3899
3900		linetitle = extractTitle(cfg, line);
3901		if (!linetitle)
3902		continue;
3903		if (strcmp(title, linetitle)) {
3904		free(linetitle);
3905		continue;
3906		}
3907		free(linetitle);
3908		}
3909
3910		line =
3911		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3912		entry->lines);
3913		if (line)
3914		removeLine(entry, line);
3915		if (prefix) {
3916		int prefixLen = strlen(prefix);
3917		if (!strncmp(initrd, prefix, prefixLen))
3918		initrd += prefixLen;
3919		}
3920		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3921		if (endLine)
3922		removeLine(entry, endLine);
3923		enum lineType_e lt;
3924		switch (kernelLine->type) {
3925		case LT_KERNEL:
3926		lt = LT_INITRD;
3927		break;
3928		case LT_KERNEL_EFI:
3929		lt = LT_INITRD_EFI;
3930		break;
3931		case LT_KERNEL_16:
3932		lt = LT_INITRD_16;
3933		break;
3934		default:
3935		lt = preferredLineType(LT_INITRD, cfg->cfi);
3936		}
3937		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3938		if (!line)
3939		return 1;
3940		if (endLine) {
3941		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3942		if (!line)
3943		return 1;
3944		}
3945
3946	return 2;	break;
3947		}
3948
3949		return 0;
3950	}	}
3951
3952	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3953	int fd;	{
3954	char buf[65536];	int fd;
3955	char * end;	unsigned char bootSect[512];
3956	char * chptr;	int offset;
3957	char * chptr2;
3958	int rc;	fd = open(device, O_RDONLY);
3959		if (fd < 0) {
3960		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3961		device, strerror(errno));
3962		return 1;
3963		}
3964
3965	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (read(fd, bootSect, 512) != 512) {
3966	*raw* devices listed in there */	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3967		device, strerror(errno));
3968		return 1;
3969		}
3970		close(fd);
3971
3972		/* first three bytes should match, a jmp short should be in there */
3973		if (memcmp(boot, bootSect, 3))
3974		return 0;
3975
3976		if (boot[1] == JMP_SHORT_OPCODE) {
3977		offset = boot[2] + 2;
3978		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3979		offset = (boot[3] << 8) + boot[2] + 2;
3980		} else if (boot[0] == JMP_SHORT_OPCODE) {
3981		offset = boot[1] + 2;
3982		/*
3983		* it looks like grub, when copying stage1 into the mbr,
3984		* patches stage1 right after the JMP location, replacing
3985		* other instructions such as JMPs for NOOPs. So, relax the
3986		* check a little bit by skipping those different bytes.
3987		*/
3988		if ((bootSect[offset + 1] == NOOP_OPCODE)
3989		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3990		offset = offset + 3;
3991		}
3992		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3993		offset = (boot[2] << 8) + boot[1] + 2;
3994		} else {
3995		return 0;
3996		}
3997
3998	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3999	mdDev += 5;	return 0;
4000
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
4001	return 2;	return 2;
4002	}	}
4003
4004	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4005	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
4006	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
4007	strerror(errno));	char buf[65536];
4008		char *end;
4009		char *chptr;
4010		char *chptr2;
4011		int rc;
4012
4013		/* it's on raid; we need to parse /proc/mdstat and check all of the
4014		*raw* devices listed in there */
4015
4016		if (!strncmp(mdDev, "/dev/", 5))
4017		mdDev += 5;
4018
4019		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4020		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4021		strerror(errno));
4022		return 2;
4023		}
4024
4025		rc = read(fd, buf, sizeof(buf) - 1);
4026		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4027		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4028		strerror(errno));
4029		close(fd);
4030		return 2;
4031		}
4032	close(fd);	close(fd);
4033	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
4034
4035	chptr = buf;	chptr = buf;
4036	while (*chptr) {	while (*chptr) {
4037	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
4038	if (!end) break;	if (!end)
4039	*end = '\0';	break;
4040		*end = '\0';
4041
4042		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4043		chptr[strlen(mdDev)] == ' ') {
4044
4045		/* found the device */
4046		while (*chptr && *chptr != ':')
4047		chptr++;
4048		chptr++;
4049		while (*chptr && isspace(*chptr))
4050		chptr++;
4051
4052		/* skip the "active" bit */
4053		while (*chptr && !isspace(*chptr))
4054		chptr++;
4055		while (*chptr && isspace(*chptr))
4056		chptr++;
4057
4058		/* skip the raid level */
4059		while (*chptr && !isspace(*chptr))
4060		chptr++;
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063
4064		/* everything else is partition stuff */
4065		while (*chptr) {
4066		chptr2 = chptr;
4067		while (*chptr2 && *chptr2 != '[')
4068		chptr2++;
4069		if (!*chptr2)
4070		break;
4071
4072		/* yank off the numbers at the end */
4073		chptr2--;
4074		while (isdigit(*chptr2) && chptr2 > chptr)
4075		chptr2--;
4076		chptr2++;
4077		*chptr2 = '\0';
4078
4079		/* Better, now we need the /dev/ back. We're
4080		* done with everything before this point, so
4081		* we can just put the /dev/ part there.
4082		* There will always be room. */
4083		memcpy(chptr - 5, "/dev/", 5);
4084		rc = checkDeviceBootloader(chptr - 5, boot);
4085		if (rc != 2) {
4086		return rc;
4087		}
4088
4089		chptr = chptr2 + 1;
4090		/* skip the [11] bit */
4091		while (*chptr && !isspace(*chptr))
4092		chptr++;
4093		/* and move to the next one */
4094		while (*chptr && isspace(*chptr))
4095		chptr++;
4096		}
4097
4098	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
4099	chptr[strlen(mdDev)] == ' ') {	return 2;
4100		}
4101
4102	/* found the device */	chptr = end + 1;
4103	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++;
	}
4104
4105	/*  we're good to go */	fprintf(stderr,
4106	return 2;	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4107		mdDev);
4108		return 0;
4109		}
4110
4111		int checkForLilo(struct grubConfig *config)
4112		{
4113		int fd;
4114		unsigned char boot[512];
4115		struct singleLine *line;
4116
4117		for (line = config->theLines; line; line = line->next)
4118		if (line->type == LT_BOOT)
4119		break;
4120
4121		if (!line) {
4122		fprintf(stderr,
4123		_
4124		("grubby: no boot line found in lilo configuration\n"));
4125		return 1;
4126	}	}
4127
4128	chptr = end + 1;	if (line->numElements != 2)
4129	}	return 1;
4130
4131	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4132	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4133	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4134	return 0;	"/boot/boot.b", strerror(errno));
4135	}	return 1;
4136		}
4137
4138	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4139	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4140	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4141	struct singleLine * line;	return 1;
4142		}
4143	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;
	}
4144
4145	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4146		return checkLiloOnRaid(line->elements[1].item, boot);
4147
4148	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4149	if (fd < 0) {	}
4150	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4151	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4152	return 1;	{
4153	}	if (!access("/etc/grub.d/", R_OK))
4154		return 2;
4155
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4156	return 1;	return 1;
4157	}	}
4158	close(fd);
4159		int checkForGrub(struct grubConfig *config)
4160		{
4161		int fd;
4162		unsigned char bootSect[512];
4163		char *boot;
4164		int onSuse = isSuseSystem();
4165
4166		if (onSuse) {
4167		if (parseSuseGrubConf(NULL, &boot))
4168		return 0;
4169		} else {
4170		if (parseSysconfigGrub(NULL, &boot))
4171		return 0;
4172		}
4173
4174		/* assume grub is not installed -- not an error condition */
4175		if (!boot)
4176		return 0;
4177
4178		fd = open("/boot/grub/stage1", O_RDONLY);
4179		if (fd < 0)
4180		/* this doesn't exist if grub hasn't been installed */
4181		return 0;
4182
4183		if (read(fd, bootSect, 512) != 512) {
4184		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4185		"/boot/grub/stage1", strerror(errno));
4186		close(fd);
4187		return 1;
4188		}
4189		close(fd);
4190
4191	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* The more elaborate checks do not work on SuSE. The checks done
4192	return checkLiloOnRaid(line->elements[1].item, boot);	* seem to be reasonble (at least for now), so just return success
4193		*/
4194		if (onSuse)
4195		return 2;
4196
4197	return checkDeviceBootloader(line->elements[1].item, boot);	return checkDeviceBootloader(boot, bootSect);
4198	}	}
4199
4200	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4201	int fd;	{
4202	unsigned char bootSect[512];	int fd;
4203	char * boot;	unsigned char bootSect[512];
4204		char *boot;
4205		char executable[] = "/boot/extlinux/extlinux";
4206
4207		printf("entered: checkForExtLinux()\n");
4208
4209		if (parseSysconfigGrub(NULL, &boot))
4210		return 0;
4211
4212		/* assume grub is not installed -- not an error condition */
4213		if (!boot)
4214		return 0;
4215
4216		fd = open(executable, O_RDONLY);
4217		if (fd < 0)
4218		/* this doesn't exist if grub hasn't been installed */
4219		return 0;
4220
4221		if (read(fd, bootSect, 512) != 512) {
4222		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4223		executable, strerror(errno));
4224		return 1;
4225		}
4226		close(fd);
4227
4228	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4229	return 0;	}
4230
4231	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4232	if (!boot)	{
4233	return 0;	/*
4234		* This is a simplistic check that we consider good enough for own puporses
4235		*
4236		* If we were to properly check if yaboot is *installed* we'd need to:
4237		* 1) get the system boot device (LT_BOOT)
4238		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4239		*    the content on the boot device
4240		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4241		* 4) check again if binary and boot device contents match
4242		*/
4243		if (!access("/etc/yaboot.conf", R_OK))
4244		return 2;
4245
4246	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4247	if (fd < 0)	}
4248	/* this doesn't exist if grub hasn't been installed */
4249	return 0;	int checkForElilo(struct grubConfig *config)
4250		{
4251		if (!access("/etc/elilo.conf", R_OK))
4252		return 2;
4253
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4254	return 1;	return 1;
4255	}	}
	close(fd);
4256
4257	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4258		{
4259		char *idx, *rootspec = NULL;
4260
4261		if (*str == '(') {
4262		idx = rootspec = strdup(str);
4263		while (*idx && (*idx != ')') && (!isspace(*idx)))
4264		idx++;
4265		*(++idx) = '\0';
4266		}
4267		return rootspec;
4268	}	}
4269
4270	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4271	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4272		const char *newKernelInitrd,
4273		const char **extraInitrds, int extraInitrdCount)
4274		{
4275		char *initrdVal, *end;
4276		int i;
4277		size_t totalSize;
4278		size_t prefixLen;
4279		char separatorChar;
4280
4281		prefixLen = strlen(prefix);
4282		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4283
4284		for (i = 0; i < extraInitrdCount; i++) {
4285		totalSize += sizeof(separatorChar);
4286		totalSize += strlen(extraInitrds[i]) - prefixLen;
4287		}
4288
4289		initrdVal = end = malloc(totalSize);
4290
4291		end = stpcpy(end, newKernelInitrd + prefixLen);
4292
4293		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4294		for (i = 0; i < extraInitrdCount; i++) {
4295		const char *extraInitrd;
4296		int j;
4297
4298		extraInitrd = extraInitrds[i] + prefixLen;
4299		/* Don't add entries that are already there */
4300		if (tmplLine != NULL) {
4301		for (j = 2; j < tmplLine->numElements; j++)
4302		if (strcmp
4303		(extraInitrd,
4304		tmplLine->elements[j].item) == 0)
4305		break;
4306
4307	if (*str == '(') {	if (j != tmplLine->numElements)
4308	idx = rootspec = strdup(str);	continue;
4309	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4310	*(++idx) = '\0';
4311	}	*end++ = separatorChar;
4312	return rootspec;	end = stpcpy(end, extraInitrd);
4313		}
4314
4315		return initrdVal;
4316	}	}
4317
4318	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4319	const char * prefix,	const char *prefix,
4320	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4321	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4322	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4323	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4324	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4325	int needs;	{
4326	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4327	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4328	char * chptr;	int needs;
4329	int i;	char *indexs;
4330	enum lineType_e type;	char *chptr;
4331		int rc;
4332	if (!newKernelPath) return 0;
4333		if (!newKernelPath)
4334	/* if the newKernelTitle is too long silently munge it into something	return 0;
4335	* we can live with. truncating is first check, then we'll just mess with
4336	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4337	if (config->cfi->maxTitleLength &&	if (rc < 0)
4338		return 1;
4339
4340		/* if the newKernelTitle is too long silently munge it into something
4341		* we can live with. truncating is first check, then we'll just mess with
4342		* it until it looks better */
4343		if (config->cfi->maxTitleLength &&
4344	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4345	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4346	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4347	int i = 1;	int i = 1;
4348
4349		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4350		newKernelTitle);
4351		while (findEntryByPath(config, buf, NULL, NULL)) {
4352		sprintf(numBuf, "%d", i++);
4353		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4354		}
4355
4356	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);
4357	}	}
4358
4359	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4360	}	new->skip = 0;
4361		new->multiboot = 0;
4362		new->lines = NULL;
4363		entry = config->entries;
4364		for (unsigned int i = 0; i < newIndex; i++) {
4365		if (!entry)
4366		break;
4367		prev = entry;
4368		entry = entry->next;
4369		}
4370		new->next = entry;
4371
4372	new = malloc(sizeof(*new));	if (prev)
4373	new->skip = 0;	prev->next = new;
4374	new->multiboot = 0;	else
4375	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;
	}
4376
4377	if (template) {	/* copy/update from the template */
4378	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4379	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4380	if (tmplLine->numElements)	needs |= NEED_INITRD;
4381	indent = tmplLine->indent;	if (newMBKernel) {
4382		needs |= NEED_MB;
4383	/* skip comments */	new->multiboot = 1;
4384	chptr = tmplLine->indent;	}
4385	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4386	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4387
4388	/* we don't need an initrd here */	if (template) {
4389	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4390		masterLine && (tmplLine = lineDup(masterLine));
4391	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4392	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4393	struct singleLine *l;	tmplLine->type);
4394	needs &= ~ KERNEL_MB;
4395		/* skip comments */
4396	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4397	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4398	newMBKernel + strlen(prefix));	chptr++;
4399		if (*chptr == '#')
4400	tmplLine = lastLine;	continue;
4401	if (!new->lines) {
4402	new->lines = l;	if (iskernel(tmplLine->type)
4403	} else {	&& tmplLine->numElements >= 2) {
4404	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4405	newLine = l;	/* it's not a multiboot template and
4406	}	* this is the kernel line.  Try to
4407	continue;	* be intelligent about inserting the
4408	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4409	template->multiboot && !new->multiboot) {	*/
4410	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4411	}	/* insert the hypervisor first */
4412		newLine =
4413	if (!new->lines) {	addLine(new, config->cfi,
4414	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4415	new->lines = newLine;	tmplLine->indent,
4416	} else {	newMBKernel +
4417	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4418	newLine = newLine->next;	/* set up for adding the
4419	}	* kernel line */
4420		free(tmplLine->indent);
4421		tmplLine->indent =
4422	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4423	newLine->next = NULL;	secondaryIndent);
4424	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4425	newLine->numElements = tmplLine->numElements;	}
4426	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4427	newLine->numElements);	/* use addLineTmpl to
4428	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4429	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4430	newLine->elements[i].indent =	* call addLine.
4431	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4432	}	* making some changes to the
4433		* template such as the
4434	lastLine = tmplLine;	* indent change above and
4435	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4436	char * repl;	*/
4437	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4438	needs &= ~KERNEL_KERNEL;	getKeywordByType
4439	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4440	} else {	if (mbm_kw) {
4441	needs &= ~KERNEL_MB;	tmplLine->type =
4442	repl = newMBKernel;	LT_MBMODULE;
4443	}	free(tmplLine->
4444	if (new->multiboot && !template->multiboot) {	elements[0].item);
4445	free(newLine->elements[0].item);	tmplLine->elements[0].
4446	newLine->elements[0].item = strdup("module");	item =
4447	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4448	}	}
4449	free(newLine->elements[1].item);	newLine =
4450	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4451	if (rootspec != NULL) {	newLine,
4452	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4453	rootspec,	strlen(prefix),
4454	repl +	config->cfi);
4455	strlen(prefix));	needs &= ~NEED_KERNEL;
4456	} else {	}
4457	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4458	strlen(prefix));	newLine =
4459	}	addLine(new, config->cfi,
4460	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4461	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4462	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4463	if (!new->multiboot && template->multiboot) {	newMBKernel +
4464	free(newLine->elements[0].item);	strlen(prefix));
4465	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4466	newLine->type = LT_KERNEL;	}
4467	}	} else if (needs & NEED_KERNEL) {
4468	free(newLine->elements[1].item);	newLine =
4469	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4470	if (rootspec != NULL) {	newKernelPath +
4471	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4472	rootspec,	config->cfi);
4473	newKernelPath +	needs &= ~NEED_KERNEL;
4474	strlen(prefix));	}
4475	} else {
4476	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4477	strlen(prefix));	tmplLine->numElements >= 2) {
4478	}	if (needs & NEED_MB) {
4479	} else if (tmplLine->type == LT_INITRD &&	newLine =
4480	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4481	needs &= ~KERNEL_INITRD;	newMBKernel +
4482	free(newLine->elements[1].item);	strlen(prefix),
4483	if (new->multiboot && !template->multiboot) {	config->cfi);
4484	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4485	newLine->elements[0].item = strdup("module");	}
4486	newLine->type = LT_MBMODULE;
4487	}	} else if (tmplLine->type == LT_MBMODULE &&
4488	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4489	if (rootspec != NULL) {	if (new->multiboot) {
4490	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4491	rootspec,	newLine =
4492	newKernelInitrd +	addLineTmpl(new, tmplLine,
4493	strlen(prefix));	newLine,
4494	} else {	newKernelPath +
4495	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4496	strlen(prefix));	config->cfi);
4497	}	needs &= ~NEED_KERNEL;
4498	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4499	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4500	needs &= ~KERNEL_INITRD;	char *initrdVal;
4501	if (!new->multiboot && template->multiboot) {	initrdVal =
4502	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4503	newLine->elements[0].item = strdup("initrd");	tmplLine,
4504	newLine->type = LT_INITRD;	newKernelInitrd,
4505	}	extraInitrds,
4506	free(newLine->elements[1].item);	extraInitrdCount);
4507	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4508	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4509	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4510	rootspec,	initrdVal,
4511	newKernelInitrd +	config->cfi);
4512	strlen(prefix));	free(initrdVal);
4513	} else {	needs &= ~NEED_INITRD;
4514	newLine->elements[1].item = strdup(newKernelInitrd +	}
4515	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4516	}	/* template is multi but new is not,
4517	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4518	tmplLine->numElements >= 2) {	* module slot
4519	needs &= ~KERNEL_TITLE;	*/
4520		tmplLine->type =
4521	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4522	free(newLine->elements[i].item);	config->cfi);
4523	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4524	}	tmplLine->elements[0].item =
4525		strdup(getKeywordByType
4526	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4527	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4528	newLine->numElements = 2;	newLine =
4529	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4530	config->cfi->titleBracketed &&	newKernelPath +
4531	tmplLine->numElements == 1) {	strlen(prefix),
4532	needs &= ~KERNEL_TITLE;	config->cfi);
4533	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4534	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4535	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4536	newLine->numElements);	/* template is multi but new is not,
4537		* insert the initrd in the second
4538	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4539	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4540	newLine->elements[0].indent = strdup("");	tmplLine->type =
4541	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4542	}	config->cfi);
4543	}	free(tmplLine->elements[0].item);
4544	} else {	tmplLine->elements[0].item =
4545	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4546	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4547	break;	config->cfi)->key);
4548	}	initrdVal =
4549		getInitrdVal(config, prefix,
4550		tmplLine,
4551		newKernelInitrd,
4552		extraInitrds,
4553		extraInitrdCount);
4554		newLine =
4555		addLineTmpl(new, tmplLine, newLine,
4556		initrdVal, config->cfi);
4557		free(initrdVal);
4558		needs &= ~NEED_INITRD;
4559		}
4560
4561		} else if (isinitrd(tmplLine->type)
4562		&& tmplLine->numElements >= 2) {
4563		if (needs & NEED_INITRD && new->multiboot
4564		&& !template->multiboot
4565		&& config->cfi->mbInitRdIsModule) {
4566		/* make sure we don't insert the
4567		* module initrd before the module
4568		* kernel... if we don't do it here,
4569		* it will be inserted following the
4570		* template.
4571		*/
4572		if (!needs & NEED_KERNEL) {
4573		char *initrdVal;
4574
4575		initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLine(new, config->cfi,
4583		LT_MBMODULE,
4584		config->
4585		secondaryIndent,
4586		initrdVal);
4587		free(initrdVal);
4588		needs &= ~NEED_INITRD;
4589		}
4590		} else if (needs & NEED_INITRD) {
4591		char *initrdVal;
4592		initrdVal =
4593		getInitrdVal(config, prefix,
4594		tmplLine,
4595		newKernelInitrd,
4596		extraInitrds,
4597		extraInitrdCount);
4598		newLine =
4599		addLineTmpl(new, tmplLine, newLine,
4600		initrdVal, config->cfi);
4601		free(initrdVal);
4602		needs &= ~NEED_INITRD;
4603		}
4604
4605		} else if (tmplLine->type == LT_MENUENTRY &&
4606		(needs & NEED_TITLE)) {
4607		requote(tmplLine, config->cfi);
4608		char *nkt = malloc(strlen(newKernelTitle) + 3);
4609		strcpy(nkt, "'");
4610		strcat(nkt, newKernelTitle);
4611		strcat(nkt, "'");
4612		newLine =
4613		addLineTmpl(new, tmplLine, newLine, nkt,
4614		config->cfi);
4615		free(nkt);
4616		needs &= ~NEED_TITLE;
4617		} else if (tmplLine->type == LT_TITLE &&
4618		(needs & NEED_TITLE)) {
4619		if (tmplLine->numElements >= 2) {
4620		newLine =
4621		addLineTmpl(new, tmplLine, newLine,
4622		newKernelTitle,
4623		config->cfi);
4624		needs &= ~NEED_TITLE;
4625		} else if (tmplLine->numElements == 1 &&
4626		config->cfi->titleBracketed) {
4627		/* addLineTmpl doesn't handle
4628		* titleBracketed */
4629		newLine =
4630		addLine(new, config->cfi, LT_TITLE,
4631		tmplLine->indent,
4632		newKernelTitle);
4633		needs &= ~NEED_TITLE;
4634		}
4635		} else if (tmplLine->type == LT_ECHO) {
4636		requote(tmplLine, config->cfi);
4637		static const char *prefix = "'Loading ";
4638		if (tmplLine->numElements > 1 &&
4639		strstr(tmplLine->elements[1].item, prefix)
4640		&& masterLine->next
4641		&& iskernel(masterLine->next->type)) {
4642		char *newTitle =
4643		malloc(strlen(prefix) +
4644		strlen(newKernelTitle) + 2);
4645
4646		strcpy(newTitle, prefix);
4647		strcat(newTitle, newKernelTitle);
4648		strcat(newTitle, "'");
4649		newLine =
4650		addLine(new, config->cfi, LT_ECHO,
4651		tmplLine->indent, newTitle);
4652		free(newTitle);
4653		} else {
4654		/* pass through other lines from the
4655		* template */
4656		newLine =
4657		addLineTmpl(new, tmplLine, newLine,
4658		NULL, config->cfi);
4659		}
4660		} else if (tmplLine->type == LT_DEVTREE &&
4661		tmplLine->numElements == 2
4662		&& newDevTreePath) {
4663		newLine =
4664		addLineTmpl(new, tmplLine, newLine,
4665		newDevTreePath + strlen(prefix),
4666		config->cfi);
4667		needs &= ~NEED_DEVTREE;
4668		} else if (tmplLine->type == LT_ENTRY_END
4669		&& needs & NEED_DEVTREE) {
4670		const char *ndtp = newDevTreePath;
4671		if (!strncmp
4672		(newDevTreePath, prefix, strlen(prefix)))
4673		ndtp += strlen(prefix);
4674		newLine = addLine(new, config->cfi, LT_DEVTREE,
4675		config->secondaryIndent,
4676		ndtp);
4677		needs &= ~NEED_DEVTREE;
4678		newLine =
4679		addLineTmpl(new, tmplLine, newLine, NULL,
4680		config->cfi);
4681		} else {
4682		/* pass through other lines from the template */
4683		newLine =
4684		addLineTmpl(new, tmplLine, newLine, NULL,
4685		config->cfi);
4686		}
4687		}
4688
4689	switch (config->cfi->keywords[i].type) {	} else {
4690	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4691	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4692	type = LT_KERNEL; break;	*/
4693	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4694	type = LT_TITLE; break;	case LT_KERNEL:
4695	default:	case LT_KERNEL_EFI:
4696	/* zipl strikes again */	case LT_KERNEL_16:
4697	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4698	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4699	chptr = newKernelTitle;	} else {
4700	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4701	break;	preferredLineType(LT_KERNEL,
4702	} else {	config->
4703	abort();	cfi),
4704	}	config->primaryIndent,
4705	}	newKernelPath +
4706		strlen(prefix));
4707		needs &= ~NEED_KERNEL;
4708		break;
4709		}
4710
4711		case LT_HYPER:
4712		newLine = addLine(new, config->cfi, LT_HYPER,
4713		config->primaryIndent,
4714		newMBKernel + strlen(prefix));
4715		needs &= ~NEED_MB;
4716		break;
4717
4718		case LT_MENUENTRY:{
4719		char *nkt = malloc(strlen(newKernelTitle) + 3);
4720		strcpy(nkt, "'");
4721		strcat(nkt, newKernelTitle);
4722		strcat(nkt, "'");
4723		newLine =
4724		addLine(new, config->cfi, LT_MENUENTRY,
4725		config->primaryIndent, nkt);
4726		free(nkt);
4727		needs &= ~NEED_TITLE;
4728		needs |= NEED_END;
4729		break;
4730		}
4731		case LT_TITLE:
4732		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4733		char *templabel;
4734		int x = 0, y = 0;
4735
4736		templabel = strdup(newKernelTitle);
4737		while (templabel[x]) {
4738		if (templabel[x] == ' ') {
4739		y = x;
4740		while (templabel[y]) {
4741		templabel[y] =
4742		templabel[y + 1];
4743		y++;
4744		}
4745		}
4746		x++;
4747		}
4748		newLine = addLine(new, config->cfi, LT_TITLE,
4749		config->primaryIndent,
4750		templabel);
4751		free(templabel);
4752		} else {
4753		newLine = addLine(new, config->cfi, LT_TITLE,
4754		config->primaryIndent,
4755		newKernelTitle);
4756		}
4757		needs &= ~NEED_TITLE;
4758		break;
4759
4760	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	default:
4761	new->lines = newLine;	abort();
4762	}	}
4763		}
	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));
	}
4764
4765	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	struct singleLine *endLine = NULL;
4766	newMBKernelArgs, NULL)) return 1;	endLine = getLineByType(LT_ENTRY_END, new->lines);
4767		if (endLine) {
4768		removeLine(new, endLine);
4769		needs |= NEED_END;
4770		}
4771
4772		/* add the remainder of the lines, i.e. those that either
4773		* weren't present in the template, or in the case of no template,
4774		* all the lines following the entryStart.
4775		*/
4776		if (needs & NEED_TITLE) {
4777		newLine = addLine(new, config->cfi, LT_TITLE,
4778		config->secondaryIndent, newKernelTitle);
4779		needs &= ~NEED_TITLE;
4780		}
4781		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4782		newLine = addLine(new, config->cfi, LT_HYPER,
4783		config->secondaryIndent,
4784		newMBKernel + strlen(prefix));
4785		needs &= ~NEED_MB;
4786		}
4787		if (needs & NEED_KERNEL) {
4788		newLine = addLine(new, config->cfi,
4789		(new->multiboot
4790		&& getKeywordByType(LT_MBMODULE,
4791		config->cfi))
4792		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4793		config->
4794		cfi),
4795		config->secondaryIndent,
4796		newKernelPath + strlen(prefix));
4797		needs &= ~NEED_KERNEL;
4798		}
4799		if (needs & NEED_MB) {
4800		newLine = addLine(new, config->cfi, LT_HYPER,
4801		config->secondaryIndent,
4802		newMBKernel + strlen(prefix));
4803		needs &= ~NEED_MB;
4804		}
4805		if (needs & NEED_INITRD) {
4806		char *initrdVal;
4807		initrdVal =
4808		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4809		extraInitrds, extraInitrdCount);
4810		newLine =
4811		addLine(new, config->cfi,
4812		(new->multiboot
4813		&& getKeywordByType(LT_MBMODULE, config->cfi))
4814		? LT_MBMODULE : preferredLineType(LT_INITRD,
4815		config->cfi),
4816		config->secondaryIndent, initrdVal);
4817		free(initrdVal);
4818		needs &= ~NEED_INITRD;
4819		}
4820		if (needs & NEED_DEVTREE) {
4821		newLine = addLine(new, config->cfi, LT_DEVTREE,
4822		config->secondaryIndent, newDevTreePath);
4823		needs &= ~NEED_DEVTREE;
4824		}
4825
4826		/* NEEDS_END must be last on bootloaders that need it... */
4827		if (needs & NEED_END) {
4828		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4829		config->secondaryIndent, NULL);
4830		needs &= ~NEED_END;
4831		}
4832
4833		if (needs) {
4834		printf(_("grubby: needs=%d, aborting\n"), needs);
4835		abort();
4836		}
4837
4838		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4839		newMBKernelArgs, NULL)) {
4840		config->isModified = 1;
4841		return 1;
4842		}
4843
4844	return 0;	return 0;
4845	}	}
4846
4847	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4848	poptContext optCon;	{
4849	char * grubConfig = NULL;	poptContext optCon;
4850	char * outputFile = NULL;	const char *grubConfig = NULL;
4851	int arg = 0;	char *outputFile = NULL;
4852	int flags = 0;	int arg = 0;
4853	int badImageOkay = 0;	int flags = 0;
4854	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4855	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4856	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4857	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4858	char * newKernelPath = NULL;	int configureExtLinux = 0;
4859	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4860	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4861	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4862	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4863	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4864	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4865	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4866	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4867	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4868	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4869	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4870	char * removeArgs = NULL;	int newIndex = 0;
4871	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4872	const char * chptr = NULL;	char *removeMBKernel = NULL;
4873	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4874	struct grubConfig * config;	char *defaultKernel = NULL;
4875	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4876	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4877	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4878	struct poptOption options[] = {	char *envPath = NULL;
4879	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4880	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4881	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4882	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4883	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4884	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4885	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4886	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4887	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4888	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4889	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4890	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4891	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4892	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4893	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4894	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4895	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4896	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4897	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4898		"new arguments for multiboot kernel being updated"), NULL},
4899		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4900		_
4901		("don't sanity check images in boot entries (for testing only)"),
4902		NULL},
4903		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4904		_
4905		("filesystem which contains /boot directory (for testing only)"),
4906		_("bootfs")},
4907		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4908		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4909		_("check which bootloader is installed on boot sector")},
4910	#endif	#endif
4911	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4912	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4913	_("path") },	_("path")},
4914	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4915	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4916	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4917	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4918	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4919	"template"), NULL },	"template"), NULL},
4920	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4921	_("display the path of the default kernel") },	_("print debugging information for failures")},
4922	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4923	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4924	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4925	_("configure grub bootloader") },	_("display the index of the default kernel")},
4926	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4927	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4928	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4929	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4930	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4931	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4932	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4933	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4934	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4935	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4936	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4937	_("path") },	_("path for environment data"),
4938	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4939	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4940	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4941	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4942	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4943	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4944	_("kernel-path") },	_("configure grub2 bootloader")},
4945	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4946	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4947	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4948	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4949	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4950	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4951	_("configure silo bootloader") },	_
4952	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4953	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4954	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4955	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4956	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4957	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4958	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4959	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4960	_("configure yaboot bootloader") },	_("path")},
4961	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4962	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4963	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4964	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4965	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4966		_("remove all entries for the specified kernel"),
4967	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4968	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4969		_("remove all entries for the specified multiboot kernel"),
4970	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4971	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4972	case 'v':	_("make the first entry referencing the specified kernel "
4973	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
4974	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4975	break;	_("make the given entry index the default entry"),
4976		_("entry-index")},
4977		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4978		_("use the given index when creating a new entry"),
4979		_("entry-index")},
4980		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4981		_("configure silo bootloader")},
4982		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4983		_("title to use for the new kernel entry"), _("entry-title")},
4984		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4985		_("updated information for the specified kernel"),
4986		_("kernel-path")},
4987		{"version", 'v', 0, NULL, 'v',
4988		_("print the version of this program and exit"), NULL},
4989		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4990		_("configure yaboot bootloader")},
4991		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4992		_("configure zipl bootloader")},
4993		POPT_AUTOHELP {0, 0, 0, 0, 0}
4994		};
4995
4996		useextlinuxmenu = 0;
4997
4998		int i = 0;
4999		for (int j = 1; j < argc; j++)
5000		i += strlen(argv[j]) + 1;
5001		saved_command_line = malloc(i);
5002		if (!saved_command_line) {
5003		fprintf(stderr, "grubby: %m\n");
5004		exit(1);
5005		}
5006		saved_command_line[0] = '\0';
5007		for (int j = 1; j < argc; j++) {
5008		strcat(saved_command_line, argv[j]);
5009		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5010		}
5011
5012		optCon = poptGetContext("grubby", argc, argv, options, 0);
5013		poptReadDefaultConfig(optCon, 1);
5014
5015		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5016		switch (arg) {
5017		case 'v':
5018		printf("grubby version %s\n", VERSION);
5019		exit(0);
5020		break;
5021		case 'i':
5022		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5023		extraInitrds[extraInitrdCount++] =
5024		strdup(poptGetOptArg(optCon));
5025		} else {
5026		fprintf(stderr,
5027		_
5028		("grubby: extra initrd maximum is %d\n"),
5029		extraInitrdCount);
5030		return 1;
5031		}
5032		break;
5033		}
5034	}	}
	}
5035
5036	if (arg < -1) {	if (arg < -1) {
5037	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5038	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5039	poptStrerror(arg));	poptStrerror(arg));
5040	return 1;	return 1;
5041	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5042
5043	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5044	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5045	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
5046	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;
	}
5047
5048	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5049	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
5050	cfi = &eliloConfigType;	configureExtLinux) > 1) {
5051	#elif __powerpc__	fprintf(stderr,
5052	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
5053	#elif __sparc__	return 1;
5054	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
5055	#elif __s390__	fprintf(stderr,
5056	cfi = &ziplConfigType;	_
5057	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
5058	cfi = &ziplConfigtype;	return 1;
5059	#else	} else if (configureGrub2) {
5060	cfi = &grubConfigType;	cfi = &grub2ConfigType;
5061	#endif	if (envPath)
5062	}	cfi->envFile = envPath;
5063		} else if (configureLilo) {
5064		cfi = &liloConfigType;
5065		} else if (configureGrub) {
5066		cfi = &grubConfigType;
5067		} else if (configureELilo) {
5068		cfi = &eliloConfigType;
5069		} else if (configureYaboot) {
5070		cfi = &yabootConfigType;
5071		} else if (configureSilo) {
5072		cfi = &siloConfigType;
5073		} else if (configureZipl) {
5074		cfi = &ziplConfigType;
5075		} else if (configureExtLinux) {
5076		cfi = &extlinuxConfigType;
5077		useextlinuxmenu = 1;
5078		}
5079
5080		if (!cfi) {
5081		if (grub2FindConfig(&grub2ConfigType)) {
5082		cfi = &grub2ConfigType;
5083		if (envPath)
5084		cfi->envFile = envPath;
5085		} else
5086		#ifdef __ia64__
5087		cfi = &eliloConfigType;
5088		#elif __powerpc__
5089		cfi = &yabootConfigType;
5090		#elif __sparc__
5091		cfi = &siloConfigType;
5092		#elif __s390__
5093		cfi = &ziplConfigType;
5094		#elif __s390x__
5095		cfi = &ziplConfigtype;
5096		#else
5097		cfi = &grubConfigType;
5098		#endif
5099		}
5100
5101	if (!grubConfig)	if (!grubConfig) {
5102	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
5103		grubConfig = cfi->findConfig(cfi);
5104		if (!grubConfig)
5105		grubConfig = cfi->defaultConfig;
5106		}
5107
5108	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5109	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5110	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5111	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5112		|| (defaultIndex >= 0))) {
5113		fprintf(stderr,
5114		_("grubby: --bootloader-probe may not be used with "
5115	"specified option"));	"specified option"));
5116	return 1;	return 1;
5117	}	}
5118
5119	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5120	removeKernelPath)) {	removeKernelPath)) {
5121	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5122	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5123	return 1;	return 1;
5124	}	}
5125
5126	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5127	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5128	return 1;	return 1;
5129	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5130	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5131	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5132	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5133	return 1;	return 1;
5134	}	}
5135
5136	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5137	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5138	"not be used together"));	"not be used together"));
5139	return 1;	return 1;
5140	}	}
5141
5142	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5143	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5144		"may not be used together\n"));
5145		return 1;
5146		} else if (defaultKernel && removeKernelPath &&
5147		!strcmp(defaultKernel, removeKernelPath)) {
5148		fprintf(stderr,
5149		_("grubby: cannot make removed kernel the default\n"));
5150		return 1;
5151		} else if (defaultKernel && newKernelPath &&
5152		!strcmp(defaultKernel, newKernelPath)) {
5153		makeDefault = 1;
5154		defaultKernel = NULL;
5155		} else if (defaultKernel && (defaultIndex >= 0)) {
5156		fprintf(stderr,
5157		_("grubby: --set-default and --set-default-index "
5158	"may not be used together\n"));	"may not be used together\n"));
5159	return 1;	return 1;
5160	} 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;
	}
5161
5162	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5163	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5164	"is used\n"));	_("grubby: output file must be specified if stdin "
5165	return 1;	"is used\n"));
5166	}	return 1;
5167		}
5168
5169	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5170	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5171	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5172	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5173	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5174	}	return 1;
5175		}
5176
5177		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5178
5179	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	if (cfi->needsBootPrefix) {
5180		if (!bootPrefix) {
5181		bootPrefix = findBootPrefix();
5182		if (!bootPrefix)
5183		return 1;
5184		} else {
5185		/* this shouldn't end with a / */
5186		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5187		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5188		}
5189		} else {
5190		bootPrefix = "";
5191		}
5192
5193	if (cfi->needsBootPrefix) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5194	if (!bootPrefix) {	fprintf(stderr,
5195	bootPrefix = findBootPrefix();	_("grubby: %s doesn't allow multiple initrds\n"),
5196	if (!bootPrefix) return 1;	cfi->defaultConfig);
5197	} else {	return 1;
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5198	}	}
	} else {
	bootPrefix = "";
	}
5199
5200	if (bootloaderProbe) {	if (bootloaderProbe) {
5201	int lrc = 0, grc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5202	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5203
5204	if (!access(grubConfigType.defaultConfig, F_OK)) {	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5205	gconfig = readConfig(grubConfigType.defaultConfig, &grubConfigType);	if (grub2config) {
5206	if (!gconfig)	gconfig = readConfig(grub2config, &grub2ConfigType);
5207	grc = 1;	if (!gconfig)
5208	else	gr2c = 1;
5209	grc = checkForGrub(gconfig);	else
5210	}	gr2c = checkForGrub2(gconfig);
5211		}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
5212
5213	if (lrc == 1 || grc == 1) return 1;	const char *grubconfig = grubFindConfig(&grubConfigType);
5214		if (!access(grubconfig, F_OK)) {
5215		gconfig = readConfig(grubconfig, &grubConfigType);
5216		if (!gconfig)
5217		grc = 1;
5218		else
5219		grc = checkForGrub(gconfig);
5220		}
5221
5222	if (lrc == 2) printf("lilo\n");	if (!access(liloConfigType.defaultConfig, F_OK)) {
5223	if (grc == 2) printf("grub\n");	lconfig =
5224		readConfig(liloConfigType.defaultConfig,
5225		&liloConfigType);
5226		if (!lconfig)
5227		lrc = 1;
5228		else
5229		lrc = checkForLilo(lconfig);
5230		}
5231
5232	return 0;	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5233	}	econfig = readConfig(eliloConfigType.defaultConfig,
5234		&eliloConfigType);
5235		if (!econfig)
5236		erc = 1;
5237		else
5238		erc = checkForElilo(econfig);
5239		}
5240
5241	config = readConfig(grubConfig, cfi);	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5242	if (!config) return 1;	lconfig =
5243		readConfig(extlinuxConfigType.defaultConfig,
5244		&extlinuxConfigType);
5245		if (!lconfig)
5246		extrc = 1;
5247		else
5248		extrc = checkForExtLinux(lconfig);
5249		}
5250
5251	if (displayDefault) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5252	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5253	struct singleEntry * entry;	&yabootConfigType);
5254	char * rootspec;	if (!yconfig)
5255		yrc = 1;
5256	if (config->defaultImage == -1) return 0;	else
5257	entry = findEntryByIndex(config, config->defaultImage);	yrc = checkForYaboot(yconfig);
5258	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));
5259
5260	return 0;	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5261	} else if (kernelInfo)	|| erc == 1)
5262	return displayInfo(config, kernelInfo, bootPrefix);	return 1;
5263
5264		if (lrc == 2)
5265		printf("lilo\n");
5266		if (gr2c == 2)
5267		printf("grub2\n");
5268		if (grc == 2)
5269		printf("grub\n");
5270		if (extrc == 2)
5271		printf("extlinux\n");
5272		if (yrc == 2)
5273		printf("yaboot\n");
5274		if (erc == 2)
5275		printf("elilo\n");
5276
5277		return 0;
5278		}
5279
5280		if (grubConfig == NULL) {
5281		printf("Could not find bootloader configuration file.\n");
5282		exit(1);
5283		}
5284
5285	if (copyDefault) {	config = readConfig(grubConfig, cfi);
5286	template = findTemplate(config, bootPrefix, NULL, 0, flags);	if (!config)
5287	if (!template) return 1;	return 1;
	}
5288
5289	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5290	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5291	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5292	bootPrefix, flags);	char *rootspec;
5293	setFallbackImage(config, newKernelPath != NULL);
5294	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5295	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5296	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5297	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5298	newMBKernel, newMBKernelArgs)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5299		entry = findEntryByIndex(config, config->defaultImage);
5300		if (!entry)
5301	if (numEntries(config) == 0) {	return 0;
5302	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	if (!suitableImage(entry, bootPrefix, 0, flags))
5303	"Not writing out new config.\n"));	return 0;
5304	return 1;
5305	}	line =
5306		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5307		LT_KERNEL_16, entry->lines);
5308		if (!line)
5309		return 0;
5310
5311		rootspec = getRootSpecifier(line->elements[1].item);
5312		printf("%s%s\n", bootPrefix, line->elements[1].item +
5313		((rootspec != NULL) ? strlen(rootspec) : 0));
5314
5315		return 0;
5316
5317		} else if (displayDefaultTitle) {
5318		struct singleLine *line;
5319		struct singleEntry *entry;
5320
5321		if (config->defaultImage == NO_DEFAULT_ENTRY)
5322		return 0;
5323		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5324		cfi->defaultIsSaved)
5325		config->defaultImage = FIRST_ENTRY_INDEX;
5326		entry = findEntryByIndex(config, config->defaultImage);
5327		if (!entry)
5328		return 0;
5329
5330		if (!configureGrub2) {
5331		char *title;
5332		line = getLineByType(LT_TITLE, entry->lines);
5333		if (!line)
5334		return 0;
5335		title = extractTitle(config, line);
5336		if (!title)
5337		return 0;
5338		printf("%s\n", title);
5339		free(title);
5340		} else {
5341		char *title;
5342
5343		dbgPrintf
5344		("This is GRUB2, default title is embeded in menuentry\n");
5345		line = getLineByType(LT_MENUENTRY, entry->lines);
5346		if (!line)
5347		return 0;
5348		title = grub2ExtractTitle(line);
5349		if (title)
5350		printf("%s\n", title);
5351		}
5352		return 0;
5353
5354		} else if (displayDefaultIndex) {
5355		if (config->defaultImage == NO_DEFAULT_ENTRY)
5356		return 0;
5357		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5358		cfi->defaultIsSaved)
5359		config->defaultImage = FIRST_ENTRY_INDEX;
5360		printf("%i\n", config->defaultImage);
5361		return 0;
5362
5363		} else if (kernelInfo)
5364		return displayInfo(config, kernelInfo, bootPrefix);
5365
5366		if (copyDefault) {
5367		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5368		if (!template)
5369		return 1;
5370		}
5371
5372		markRemovedImage(config, removeKernelPath, bootPrefix);
5373		markRemovedImage(config, removeMBKernel, bootPrefix);
5374		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5375		makeDefault, bootPrefix, flags, defaultIndex,
5376		newIndex);
5377		setFallbackImage(config, newKernelPath != NULL);
5378		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5379		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5380		return 1;
5381		if (updateKernelPath && newKernelInitrd) {
5382		if (newMBKernel) {
5383		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5384		bootPrefix, newKernelInitrd,
5385		newKernelTitle))
5386		return 1;
5387		} else {
5388		if (updateInitrd(config, updateKernelPath, bootPrefix,
5389		newKernelInitrd, newKernelTitle))
5390		return 1;
5391		}
5392		}
5393		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5394		newKernelTitle, newKernelArgs, newKernelInitrd,
5395		(const char **)extraInitrds, extraInitrdCount,
5396		newMBKernel, newMBKernelArgs, newDevTreePath,
5397		newIndex))
5398		return 1;
5399
5400		if (numEntries(config) == 0) {
5401		fprintf(stderr,
5402		_("grubby: doing this would leave no kernel entries. "
5403		"Not writing out new config.\n"));
5404		return 1;
5405		}
5406
5407	if (!outputFile)	if (!outputFile)
5408	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5409
5410	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5411	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3031