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 3029 by niro, Tue Jun 27 14:46:56 2017 UTC
#	Line 1	Line 1
1	/* Copyright (C) 2001-2005 Red Hat, Inc.	/*
2		* grubby.c
3	This program is free software; you can redistribute it and/or	*
4	modify it under the terms of the General Public License as published	* Copyright (C) 2001-2008 Red Hat, Inc.
5	by the Free Software Foundation; either version 2 of the License, or	* All rights reserved.
6	(at your option) any later version.	*
7		* This program is free software; you can redistribute it and/or modify
8	This program is distributed in the hope that it will be useful,	* it under the terms of the GNU General Public License as published by
9	but WITHOUT ANY WARRANTY; without even the implied warranty of	* the Free Software Foundation; either version 2 of the License, or
10	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU	* (at your option) any later version.
11	General Public License for more details.	*
12		* This program is distributed in the hope that it will be useful,
13	You should have received a copy of the GNU General Public	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	License along with this program; if not, write to the Free	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA	* GNU General Public License for more details.
16	02111-1307 USA.  */	*
17		* You should have received a copy of the GNU General Public License
18		* along with this program.  If not, see <http://www.gnu.org/licenses/>.
19		*/
20
21		#ifndef _GNU_SOURCE
22		#define _GNU_SOURCE
23		#endif
24	#include <ctype.h>	#include <ctype.h>
25	#include <errno.h>	#include <errno.h>
26	#include <fcntl.h>	#include <fcntl.h>
#	Line 25	Line 31
31	#include <string.h>	#include <string.h>
32	#include <sys/stat.h>	#include <sys/stat.h>
33	#include <unistd.h>	#include <unistd.h>
34		#include <libgen.h>
35		#include <execinfo.h>
36		#include <signal.h>
37		#include <blkid/blkid.h>
38
39		#include "log.h"
40
41		#ifndef DEBUG
42		#define DEBUG 0
43		#endif
44
45		#if DEBUG
46		#define dbgPrintf(format, args...) fprintf(stderr, format , ## args)
47		#else
48		#define dbgPrintf(format, args...)
49		#endif
50
51	#include "mount_by_label.h"	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
55		#define MAX_EXTRA_INITRDS  16 /* code segment checked by --bootloader-probe */
56	#define CODE_SEG_SIZE  128 /* code segment checked by --bootloader-probe */	#define CODE_SEG_SIZE  128 /* code segment checked by --bootloader-probe */
57
58		#define NOOP_OPCODE 0x90
59		#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e { LT_WHITESPACE, LT_TITLE, LT_KERNEL, LT_INITRD, LT_DEFAULT,	enum lineType_e {
78	LT_UNKNOWN, LT_ROOT, LT_FALLBACK, LT_KERNELARGS, LT_BOOT,	LT_UNIDENTIFIED = 0,
79	LT_BOOTROOT, LT_LBA, LT_MBMODULE, LT_OTHER, LT_GENERIC };	LT_WHITESPACE = 1 << 0,
80		LT_TITLE = 1 << 1,
81		LT_KERNEL = 1 << 2,
82		LT_INITRD = 1 << 3,
83		LT_HYPER = 1 << 4,
84		LT_DEFAULT = 1 << 5,
85		LT_MBMODULE = 1 << 6,
86		LT_ROOT = 1 << 7,
87		LT_FALLBACK = 1 << 8,
88		LT_KERNELARGS = 1 << 9,
89		LT_BOOT = 1 << 10,
90		LT_BOOTROOT = 1 << 11,
91		LT_LBA = 1 << 12,
92		LT_OTHER = 1 << 13,
93		LT_GENERIC = 1 << 14,
94		LT_ECHO = 1 << 16,
95		LT_MENUENTRY = 1 << 17,
96		LT_ENTRY_END = 1 << 18,
97		LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104		};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
122
123	#define GRUB_CONFIG_NO_DEFAULT    (1 << 0) /* don't write out default=0 */	#define GRUB_CONFIG_NO_DEFAULT    (1 << 0) /* don't write out default=0 */
124
125	#define KERNEL_KERNEL    (1 << 0)	/* These defines are (only) used in addNewKernel() */
126	#define KERNEL_INITRD    (1 << 2)	#define NEED_KERNEL  (1 << 0)
127	#define KERNEL_TITLE    (1 << 3)	#define NEED_INITRD  (1 << 1)
128	#define KERNEL_ARGS    (1 << 4)	#define NEED_TITLE   (1 << 2)
129	#define KERNEL_MB           (1 << 5)	#define NEED_ARGS    (1 << 3)
130		#define NEED_MB      (1 << 4)
131		#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140		#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	} ;	char separatorChar;
147		};
148
149		struct configFileInfo;
150
151		typedef const char *(*findConfigFunc) (struct configFileInfo *);
152		typedef const int (*writeLineFunc) (struct configFileInfo *,
153		struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	struct keywordTypes * keywords;	findConfigFunc findConfig;
160	int defaultIsIndex;	writeLineFunc writeLine;
161	int defaultSupportSaved;	getEnvFunc getEnv;
162	enum lineType_e entrySeparator;	setEnvFunc setEnv;
163	int needsBootPrefix;	struct keywordTypes *keywords;
164	int argsInQuotes;	int caseInsensitive;
165	int maxTitleLength;	int defaultIsIndex;
166	int titleBracketed;	int defaultIsVariable;
167		int defaultSupportSaved;
168		int defaultIsSaved;
169		int defaultIsUnquoted;
170		enum lineType_e entryStart;
171		enum lineType_e entryEnd;
172		int needsBootPrefix;
173		int argsInQuotes;
174		int maxTitleLength;
175		int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ NULL,    0, 0 },	{"kernel", LT_HYPER, ' '},
193		{NULL, 0, 0},
194	};	};
195
196		const char *grubFindConfig(struct configFileInfo *cfi)
197		{
198		static const char *configFiles[] = {
199		"/boot/grub/grub.conf",
200		"/boot/grub/menu.lst",
201		"/etc/grub.conf",
202		NULL
203		};
204		static int i = -1;
205
206		if (i == -1) {
207		for (i = 0; configFiles[i] != NULL; i++) {
208		dbgPrintf("Checking \"%s\": ", configFiles[i]);
209		if (!access(configFiles[i], R_OK)) {
210		dbgPrintf("found\n");
211		return configFiles[i];
212		}
213		dbgPrintf("not found\n");
214		}
215		}
216		return configFiles[i];
217		}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	"/boot/grub/grub.conf",    /* defaultConfig */	.findConfig = grubFindConfig,
221	grubKeywords,    /* keywords */	.keywords = grubKeywords,
222	1,    /* defaultIsIndex */	.defaultIsIndex = 1,
223	1,    /* defaultSupportSaved */	.defaultSupportSaved = 1,
224	LT_TITLE,    /* entrySeparator */	.entryStart = LT_TITLE,
225	1,    /* needsBootPrefix */	.needsBootPrefix = 1,
226	0,    /* argsInQuotes */	.mbHyperFirst = 1,
227	0,    /* maxTitleLength */	.mbInitRdIsModule = 1,
228	0,                                      /* titleBracketed */	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230		};
231
232		struct keywordTypes grub2Keywords[] = {
233		{"menuentry", LT_MENUENTRY, ' '},
234		{"}", LT_ENTRY_END, ' '},
235		{"echo", LT_ECHO, ' '},
236		{"set", LT_SET_VARIABLE, ' ', '='},
237		{"root", LT_BOOTROOT, ' '},
238		{"default", LT_DEFAULT, ' '},
239		{"fallback", LT_FALLBACK, ' '},
240		{"linux", LT_KERNEL, ' '},
241		{"linuxefi", LT_KERNEL_EFI, ' '},
242		{"linux16", LT_KERNEL_16, ' '},
243		{"initrd", LT_INITRD, ' ', ' '},
244		{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245		{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247		{"kernel", LT_HYPER, ' '},
248		{"devicetree", LT_DEVTREE, ' '},
249		{NULL, 0, 0},
250		};
251
252		const char *grub2FindConfig(struct configFileInfo *cfi)
253		{
254		static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256		"/boot/grub/grub.cfg",
257		"/etc/grub2-efi.cfg",
258		"/etc/grub2.cfg",
259		"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289		dbgPrintf("found\n");
290		return grub_cfg;
291		}
292
293		dbgPrintf("not found\n");
294		return configFiles[i];
295		}
296
297		/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298		static char *grub2GetEnv(struct configFileInfo *info, char *name)
299		{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344		char *ret = calloc(l + 1, sizeof(*ret));
345		if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396		}
397
398		int sizeOfSingleLine(struct singleLine *line)
399		{
400		int count = 0;
401
402		for (int i = 0; i < line->numElements; i++) {
403		int indentSize = 0;
404
405		count = count + strlen(line->elements[i].item);
406
407		indentSize = strlen(line->elements[i].indent);
408		if (indentSize > 0)
409		count = count + indentSize;
410		else
411		/* be extra safe and add room for whitespaces */
412		count = count + 1;
413		}
414
415		/* room for trailing terminator */
416		count = count + 1;
417
418		return count;
419		}
420
421		static int isquote(char q)
422		{
423		if (q == '\'' || q == '\"')
424		return 1;
425		return 0;
426		}
427
428		static int iskernel(enum lineType_e type)
429		{
430		return (type == LT_KERNEL || type == LT_KERNEL_EFI
431		|| type == LT_KERNEL_16);
432		}
433
434		static int isinitrd(enum lineType_e type)
435		{
436		return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438		}
439
440		char *grub2ExtractTitle(struct singleLine *line)
441		{
442		char *current;
443		char *current_indent;
444		int current_len;
445		int current_indent_len;
446		int i;
447
448		/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452		i = 1;
453		current = line->elements[i].item;
454		current_len = strlen(current);
455
456		/* if second word is quoted, strip the quotes and return single word */
457		if (isquote(*current) && isquote(current[current_len - 1])) {
458		char *tmp;
459
460		tmp = strdup(current + 1);
461		if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496		}
497		return result;
498		}
499
500		struct configFileInfo grub2ConfigType = {
501		.findConfig = grub2FindConfig,
502		.getEnv = grub2GetEnv,
503		.setEnv = grub2SetEnv,
504		.keywords = grub2Keywords,
505		.defaultIsIndex = 1,
506		.defaultSupportSaved = 1,
507		.defaultIsVariable = 1,
508		.entryStart = LT_MENUENTRY,
509		.entryEnd = LT_ENTRY_END,
510		.titlePosition = 1,
511		.needsBootPrefix = 1,
512		.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566		};
567
568		struct keywordTypes eliloKeywords[] = {
569		{"label", LT_TITLE, '='},
570		{"root", LT_ROOT, '='},
571		{"default", LT_DEFAULT, '='},
572		{"image", LT_KERNEL, '='},
573		{"initrd", LT_INITRD, '='},
574		{"append", LT_KERNELARGS, '='},
575		{"vmm", LT_HYPER, '='},
576		{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598		};
599
600		struct keywordTypes extlinuxKeywords[] = {
601		{"label", LT_TITLE, ' '},
602		{"root", LT_ROOT, ' '},
603		{"default", LT_DEFAULT, ' '},
604		{"kernel", LT_KERNEL, ' '},
605		{"initrd", LT_INITRD, ' ', ','},
606		{"append", LT_KERNELARGS, ' '},
607		{"prompt", LT_UNKNOWN, ' '},
608		{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613		int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	"/boot/efi/EFI/redhat/elilo.conf",    /* defaultConfig */	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	liloKeywords,    /* keywords */	.keywords = eliloKeywords,
617	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
618	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
619	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
620	1,                    /* needsBootPrefix */	.mbConcatArgs = 1,
621	1,    /* argsInQuotes */	.titlePosition = 1,
	0,    /* maxTitleLength */
	0,                                      /* titleBracketed */
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	"/etc/lilo.conf",    /* defaultConfig */	.defaultConfig = "/etc/lilo.conf",
626	liloKeywords,    /* keywords */	.keywords = liloKeywords,
627	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
628	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
629	LT_KERNEL,    /* entrySeparator */	.maxTitleLength = 15,
630	0,    /* needsBootPrefix */	.titlePosition = 1,
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	"/etc/yaboot.conf",    /* defaultConfig */	.defaultConfig = "/etc/yaboot.conf",
635	yabootKeywords,    /* keywords */	.keywords = yabootKeywords,
636	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
637	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
638	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
639	1,    /* needsBootPrefix */	.maxTitleLength = 15,
640	1,    /* argsInQuotes */	.mbAllowExtraInitRds = 1,
641	15,    /* maxTitleLength */	.titlePosition = 1,
	0,                                      /* titleBracketed */
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	"/etc/silo.conf",    /* defaultConfig */	.defaultConfig = "/etc/silo.conf",
646	siloKeywords,    /* keywords */	.keywords = siloKeywords,
647	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
648	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
649	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
650	1,    /* needsBootPrefix */	.maxTitleLength = 15,
651	1,    /* argsInQuotes */	.titlePosition = 1,
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	"/etc/zipl.conf",    /* defaultConfig */	.defaultConfig = "/etc/zipl.conf",
656	ziplKeywords,    /* keywords */	.keywords = ziplKeywords,
657	0,    /* defaultIsIndex */	.entryStart = LT_TITLE,
658	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
659	LT_TITLE,    /* entrySeparator */	.titleBracketed = 1,
	0,    /* needsBootPrefix */
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	1,                                      /* titleBracketed */
660	};	};
661
662	struct grubConfig {	struct configFileInfo extlinuxConfigType = {
663	struct singleLine * theLines;	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	struct singleEntry * entries;	.keywords = extlinuxKeywords,
665	char * primaryIndent;	.caseInsensitive = 1,
666	char * secondaryIndent;	.entryStart = LT_TITLE,
667	int defaultImage;    /* -1 if none specified -- this value is	.needsBootPrefix = 1,
668	* written out, overriding original */	.maxTitleLength = 255,
669	int fallbackImage;    /* just like defaultImage */	.mbAllowExtraInitRds = 1,
670	int flags;	.defaultIsUnquoted = 1,
671	struct configFileInfo * cfi;	.titlePosition = 1,
672	};	};
673
674		struct grubConfig {
675		struct singleLine *theLines;
676		struct singleEntry *entries;
677		char *primaryIndent;
678		char *secondaryIndent;
679		int defaultImage; /* -1 if none specified -- this value is
680		* written out, overriding original */
681		int fallbackImage; /* just like defaultImage */
682		int flags;
683		struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686		};
687
688	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	blkid_cache blkid;
	struct singleEntry * findEntryByPath(struct grubConfig * cfg,
	const char * path, const char * prefix,
	int * index);
	static char * strndup(char * from, int len);
	static int readFile(int fd, char ** bufPtr);
	static void lineInit(struct singleLine * line);
	static void lineFree(struct singleLine * line);
	static int lineWrite(FILE * out, struct singleLine * line,
	struct configFileInfo * cfi);
	static int getNextLine(char ** bufPtr, struct singleLine * line,
	struct configFileInfo * cfi);
	static char * getRootSpecifier(char * str);
	static char * strndup(char * from, int len) {
	char * to;
	to = malloc(len + 1);
	strncpy(to, from, len);
	to[len] = '\0';
689
690	return to;	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	}	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692		const char *path, const char *prefix,
693		int *index);
694		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695		int *index);
696		static int readFile(int fd, char **bufPtr);
697		static void lineInit(struct singleLine *line);
698		struct singleLine *lineDup(struct singleLine *line);
699		static void lineFree(struct singleLine *line);
700		static int lineWrite(FILE * out, struct singleLine *line,
701		struct configFileInfo *cfi);
702		static int getNextLine(char **bufPtr, struct singleLine *line,
703		struct configFileInfo *cfi);
704		static char *getRootSpecifier(char *str);
705		static void requote(struct singleLine *line, struct configFileInfo *cfi);
706		static void insertElement(struct singleLine *line,
707		const char *item, int insertHere,
708		struct configFileInfo *cfi);
709		static void removeElement(struct singleLine *line, int removeHere);
710		static struct keywordTypes *getKeywordByType(enum lineType_e type,
711		struct configFileInfo *cfi);
712		static enum lineType_e getTypeByKeyword(char *keyword,
713		struct configFileInfo *cfi);
714		static struct singleLine *getLineByType(enum lineType_e type,
715		struct singleLine *line);
716		static int checkForExtLinux(struct grubConfig *config);
717		struct singleLine *addLineTmpl(struct singleEntry *entry,
718		struct singleLine *tmplLine,
719		struct singleLine *prevLine,
720		const char *val, struct configFileInfo *cfi);
721		struct singleLine *addLine(struct singleEntry *entry,
722		struct configFileInfo *cfi,
723		enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747	va_end(args);
748	va_start(args, format);	va_end(args);
749		va_start(args, format);
750	buf = malloc(size);
751	if (buf == NULL)	buf = malloc(size);
752	return NULL;	if (buf == NULL)
753	vsnprintf(buf, size, format, args);	return NULL;
754	va_end (args);	vsnprintf(buf, size, format, args);
755		va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static int isBracketedTitle(struct singleLine * line) {	static inline int
761	if ((*line->elements[0].item == '[') && (line->numElements == 1)) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	int len = strlen(line->elements[0].item);	{
763	if (*(line->elements[0].item + len - 1) == ']') {	int kwl = strlen(kw->key);
764	/* FIXME: this is a hack... */	int ll = strlen(label);
765	if (strcmp(line->elements[0].item, "[defaultboot]")) {	int rc;
766	return 1;	int (*snc)(const char *s1, const char *s2, size_t n) =
767	}	case_insensitive ? strncasecmp : strncmp;
768	}	int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return 0;	return 0;
785	}	}
786
787	/* figure out if this is a entry separator */	static enum lineType_e preferredLineType(enum lineType_e type,
788	static int isEntrySeparator(struct singleLine * line,	struct configFileInfo *cfi)
789	struct configFileInfo * cfi) {	{
790	if (line->type == LT_WHITESPACE)	if (isEfi && cfi == &grub2ConfigType) {
791	return 0;	switch (type) {
792	if (line->type == cfi->entrySeparator)	case LT_KERNEL:
793	return 1;	return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794	if (line->type == LT_OTHER)	case LT_INITRD:
795	return 1;	return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796	if (cfi->titleBracketed && isBracketedTitle(line)) {	default:
797	return 1;	return type;
798	}	}
799	return 0;	#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812	}	}
813
814	/* extract the title from within brackets (for zipl) */	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	static char * extractTitle(struct singleLine * line) {	struct configFileInfo *cfi)
816	/* bracketed title... let's extract it (leaks a byte) */	{
817	char * title;	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	title = strdup(line->elements[0].item);	if (kw->type == type)
819	title++;	return kw;
820	*(title + strlen(title) - 1) = '\0';	}
821	return title;	return NULL;
822	}	}
	static int readFile(int fd, char ** bufPtr) {
	int alloced = 0, size = 0, i = 0;
	char * buf = NULL;
	do {
	size += i;
	if ((size + 1024) > alloced) {
	alloced += 4096;
	buf = realloc(buf, alloced + 1);
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
823
824	buf = realloc(buf, size + 2);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	if (size == 0)	{
826	buf[size++] = '\n';	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	else	if (kt)
828	if (buf[size - 1] != '\n')	return kt->key;
829	buf[size++] = '\n';	return "unknown";
830	buf[size] = '\0';	}
831
832	*bufPtr = buf;	static char *getpathbyspec(char *device)
833		{
834		if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return 0;	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static void lineInit(struct singleLine * line) {	static char *getuuidbydev(char *device)
841	line->indent = NULL;	{
842	line->elements = NULL;	if (!blkid)
843	line->numElements = 0;	blkid_get_cache(&blkid, NULL);
844	line->next = NULL;
845		return blkid_get_tag_value(blkid, "UUID", device);
846	}	}
847
848	static void lineFree(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
849	int i;	struct configFileInfo *cfi)
850		{
851		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852		if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853		return kw->type;
854		}
855		return LT_UNKNOWN;
856		}
857
858	if (line->indent) free(line->indent);	static struct singleLine *getLineByType(enum lineType_e type,
859		struct singleLine *line)
860		{
861		dbgPrintf("getLineByType(%d): ", type);
862		for (; line; line = line->next) {
863		dbgPrintf("%d:%s ", line->type,
864		line->numElements ? line->elements[0].
865		item : "(empty)");
866		if (line->type & type)
867		break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871		}
872
873	for (i = 0; i < line->numElements; i++) {	static int isBracketedTitle(struct singleLine *line)
874	free(line->elements[i].item);	{
875	free(line->elements[i].indent);	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	}	int len = strlen(line->elements[0].item);
877		if (*(line->elements[0].item + len - 1) == ']') {
878		/* FIXME: this is a hack... */
879		if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885		}
886
887	if (line->elements) free(line->elements);	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	lineInit(line);	{
889		return line->type == cfi->entryStart || line->type == LT_OTHER ||
890		(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	static int lineWrite(FILE * out, struct singleLine * line,	/* extract the title from within brackets (for zipl) */
894	struct configFileInfo * cfi) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	int i;	{
896		/* bracketed title... let's extract it */
897		char *title = NULL;
898		if (line->type == LT_TITLE) {
899		char *tmp = line->elements[cfg->cfi->titlePosition].item;
900		if (cfg->cfi->titleBracketed) {
901		tmp++;
902		title = strdup(tmp);
903		*(title + strlen(title) - 1) = '\0';
904		} else {
905		title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912		}
913
914	if (fprintf(out, "%s", line->indent) == -1) return -1;	static int readFile(int fd, char **bufPtr)
915		{
916		int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919		do {
920		size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	for (i = 0; i < line->numElements; i++) {	if (i < 0) {
928	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	fprintf(stderr, _("error reading input: %s\n"),
929	if (fputc('"', out) == EOF) return -1;	strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	buf = realloc(buf, size + 2);
935	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	if (size == 0)
936	}	buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	*bufPtr = buf;
	if (fputc('"', out) == EOF) return -1;
942
943	if (fprintf(out, "\n") == -1) return -1;	return 0;
944		}
945
946	return 0;	static void lineInit(struct singleLine *line)
947		{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	/* we've guaranteed that the buffer ends w/ \n\0 */	struct singleLine *lineDup(struct singleLine *line)
956	static int getNextLine(char ** bufPtr, struct singleLine * line,	{
957	struct configFileInfo * cfi) {	struct singleLine *newLine = malloc(sizeof(*newLine));
958	char * end;
959	char * start = *bufPtr;	newLine->indent = strdup(line->indent);
960	char * chptr;	newLine->next = NULL;
961	int elementsAlloced = 0;	newLine->type = line->type;
962	struct lineElement * element;	newLine->numElements = line->numElements;
963	struct keywordTypes * keywords = cfi->keywords;	newLine->elements = malloc(sizeof(*newLine->elements) *
964	int first = 1;	newLine->numElements);
965	int i;
966		for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971		return newLine;
972		}
973
974	lineFree(line);	static void lineFree(struct singleLine *line)
975		{
976		if (line->indent)
977		free(line->indent);
978
979	end = strchr(start, '\n');	for (int i = 0; i < line->numElements; i++) {
980	*end = '\0';	free(line->elements[i].item);
981	*bufPtr = end + 1;	free(line->elements[i].indent);
982		}
983
984	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987		}
988
989	line->indent = strndup(start, chptr - start);	static int lineWrite(FILE * out, struct singleLine *line,
990	start = chptr;	struct configFileInfo *cfi)
991		{
992		if (fprintf(out, "%s", line->indent) == -1)
993		return -1;
994
995		for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	while (start < end) {	continue;
1023	/* we know !isspace(*start) */	}
1024
1025	if (elementsAlloced == line->numElements) {	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026	elementsAlloced += 5;	if (fputc('"', out) == EOF)
1027	line->elements = realloc(line->elements,	return -1;
1028	sizeof(*line->elements) * elementsAlloced);
1029	}	if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	element = line->elements + line->numElements;	if (fprintf(out, "\n") == -1)
1041		return -1;
1042
1043	chptr = start;	return 0;
1044	while (*chptr && !isspace(*chptr)) {	}
1045	if (first && *chptr == '=') break;
1046	chptr++;	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	}	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	element->item = strndup(start, chptr - start);	struct configFileInfo *cfi)
1049	start = chptr;	{
1050		char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057		lineFree(line);
1058
1059		end = strchr(start, '\n');
1060		*end = '\0';
1061		*bufPtr = end + 1;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	for (i = 0; keywords[i].key; i++)	sizeof(*line->elements) *
1075	if (!strcmp(line->elements[0].item, keywords[i].key)) break;	elementsAlloced);
1076		}
	if (keywords[i].key) {
	line->type = keywords[i].type;
	} else {
	line->type = LT_UNKNOWN;
	/* zipl does [title] instead of something reasonable like all
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115		if (line->type == LT_UNKNOWN) {
1116		/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122		/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150		line->type = LT_WHITESPACE;
1151		line->numElements = 0;
1152		}
1153		} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156		kw = getKeywordByType(line->type, cfi);
1157
1158		/* space isn't the only separator, we need to split
1159		* elements up more
1160		*/
1161		if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186		for (int j = line->numElements; j > i;
1187		j--) {
1188		line->elements[j +
1189		numNewElements] =
1190		line->elements[j];
1191		}
1192		line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244		}
1245		free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248		}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
1262	struct singleLine * last = NULL, * line, * defaultLine = NULL;
1263	char * end;	static struct grubConfig *readConfig(const char *inName,
1264	struct singleEntry * entry = NULL;	struct configFileInfo *cfi)
1265	int i, len;	{
1266	char * buf;	int in;
1267		char *incoming = NULL, *head;
1268	if (!strcmp(inName, "-")) {	int rc;
1269	in = 0;	int sawEntry = 0;
1270	} else {	int movedLine = 0;
1271	if ((in = open(inName, O_RDONLY)) < 0) {	struct grubConfig *cfg;
1272	fprintf(stderr, _("error opening %s for read: %s\n"),	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	inName, strerror(errno));	char *end;
1274	return NULL;	struct singleEntry *entry = NULL;
1275		int len;
1276		char *buf;
1277
1278		if (inName == NULL) {
1279		printf("Could not find bootloader configuration\n");
1280		exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289	}	}
	}
1290
1291	rc = readFile(in, &incoming);	rc = readFile(in, &incoming);
1292	close(in);	close(in);
1293	if (rc) return NULL;	if (rc)
1294		return NULL;
1295	head = incoming;
1296	cfg = malloc(sizeof(*cfg));	head = incoming;
1297	cfg->primaryIndent = strdup("");	cfg = malloc(sizeof(*cfg));
1298	cfg->secondaryIndent = strdup("\t");	cfg->primaryIndent = strdup("");
1299	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	cfg->secondaryIndent = strdup("\t");
1300	cfg->cfi = cfi;	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	cfg->theLines = NULL;	cfg->cfi = cfi;
1302	cfg->entries = NULL;	cfg->theLines = NULL;
1303	cfg->fallbackImage = 0;	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	/* copy everything we have */	cfg->isModified = 0;
1306	while (*head) {
1307	line = malloc(sizeof(*line));	/* copy everything we have */
1308	lineInit(line);	while (*head) {
1309		line = malloc(sizeof(*line));
1310		lineInit(line);
1311
1312		if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	if (getNextLine(&head, line, cfi)) {	if (!sawEntry && line->numElements) {
1319	free(line);	free(cfg->primaryIndent);
1320	/* XXX memory leak of everything in cfg */	cfg->primaryIndent = strdup(line->indent);
1321	return NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (!sawEntry && line->numElements) {	}
	free(cfg->primaryIndent);
	cfg->primaryIndent = strdup(line->indent);
	} else if (line->numElements) {
	free(cfg->secondaryIndent);
	cfg->secondaryIndent = strdup(line->indent);
	}
	if (isEntrySeparator(line, cfi)) {
	sawEntry = 1;
	if (!entry) {
	cfg->entries = malloc(sizeof(*entry));
	entry = cfg->entries;
	} else {
	entry->next = malloc(sizeof(*entry));
	entry = entry->next;
	}
1325
1326	entry->skip = 0;	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	entry->multiboot = 0;	sawEntry = 1;
1328	entry->lines = NULL;	if (!entry) {
1329	entry->next = NULL;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	if (line->type == LT_DEFAULT && line->numElements == 2) {	entry->next = malloc(sizeof(*entry));
1333	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	entry = entry->next;
1334	defaultLine = line;	}
1335	} else if (line->type == LT_MBMODULE) {
1336	entry->multiboot = 1;	entry->skip = 0;
1337	} else if (line->type == LT_FALLBACK && line->numElements == 2) {	entry->multiboot = 0;
1338	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);	entry->lines = NULL;
1339	if (*end) cfg->fallbackImage = -1;	entry->next = NULL;
1340	} else if (line->type == LT_TITLE && line->numElements > 1) {	}
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1341
1342	for (i = 1; i < line->numElements; i++) {	if (line->type == LT_SET_VARIABLE) {
1343	strcat(buf, line->elements[i].item);	dbgPrintf("found 'set' command (%d elements): ",
1344	free(line->elements[i].item);	line->numElements);
1345		dbgPrintf("%s", line->indent);
1346		for (int i = 0; i < line->numElements; i++)
1347		dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349		dbgPrintf("\n");
1350		struct keywordTypes *kwType =
1351		getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353		&& !strcmp(line->elements[1].item, kwType->key)
1354		&& !is_special_grub2_variable(
1355		line->elements[2].item)) {
1356		dbgPrintf("Line sets default config\n");
1357		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358		defaultLine = line;
1359		}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368		} else if (line->type == LT_MBMODULE) {
1369		/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386		} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389		} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408		for (int i = 1; i < line->numElements; i++) {
1409		strcat(buf, line->elements[i].item);
1410		free(line->elements[i].item);
1411
1412		if ((i + 1) != line->numElements) {
1413		strcat(buf, line->elements[i].indent);
1414		free(line->elements[i].indent);
1415		}
1416		}
1417
1418		line->elements[1].indent =
1419		line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437		/* allocate mem for extra flags. */
1438		extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455		len = strlen(title);
1456		if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465		/* get extras */
1466		int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475		if (!strcmp
1476		(line->elements[i].item, "menuentry"))
1477		continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487		len = strlen(line->elements[i].item);
1488
1489		if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493		/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510		if (isquote(*line->elements[1].item))
1511		memmove(line->elements[1].item,
1512		line->elements[1].item + 1,
1513		strlen(line->elements[1].item +
1514		1) + 1);
1515
1516		last = line->numElements - 1;
1517		len = strlen(line->elements[last].item) - 1;
1518		if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520		}
1521		}
1522
1523	if ((i + 1) != line->numElements) {	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	strcat(buf, line->elements[i].indent);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	free(line->elements[i].indent);	defaultLine = line;
1526	}	}
	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (*line->elements[1].item == '"')
	memcpy(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (line->elements[last].item[len] == '"')
	line->elements[last].item[len] = '\0';
	}
1527
1528	}	/* If we find a generic config option which should live at the
1529		top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	/* If we find a generic config option which should live at the	/* If a second line of whitespace happens after a generic
1547	top of the file, move it there. Old versions of grubby were	* option which was moved, drop it. */
1548	probably responsible for putting new images in the wrong	if (movedLine && line->type == LT_WHITESPACE
1549	place in front of it anyway. */	&& last->type == LT_WHITESPACE) {
1550	if (sawEntry && line->type == LT_GENERIC) {	lineFree(line);
1551	struct singleLine **l = &cfg->theLines;	free(line);
1552	struct singleLine **last_nonws = &cfg->theLines;	movedLine = 0;
1553	while (*l) {	continue;
1554	if ((*l)->type != LT_WHITESPACE)	}
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
1555	movedLine = 0;	movedLine = 0;
1556	continue;
1557		if (sawEntry) {
1558		if (!entry->lines)
1559		entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565		/* we could have seen this outside of an entry... if
1566		* so, we ignore it like any other line we don't grok
1567		*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579		last = line;
1580	}	}
	movedLine = 0;
1581
1582	if (sawEntry) {	free(incoming);
1583	if (!entry->lines)
1584	entry->lines = line;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	else	if (defaultLine) {
1586	last->next = line;	if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692	} else {	} else {
1693	if (!cfg->theLines)	cfg->defaultImage = FIRST_ENTRY_INDEX;
	cfg->theLines = line;
	else {
	last->next = line;
	}
1694	}	}
1695
1696	last = line;	return cfg;
1697	}	}
	free(incoming);
1698
1699	if (defaultLine) {	static void writeDefault(FILE * out, char *indent,
1700	if (cfi->defaultSupportSaved &&	char *separator, struct grubConfig *cfg)
1701	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	{
1702	cfg->defaultImage = DEFAULT_SAVED;	struct singleEntry *entry;
1703	} else if (cfi->defaultIsIndex) {	struct singleLine *line;
1704	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);	int i;
1705	if (*end) cfg->defaultImage = -1;
1706	} else if (defaultLine->numElements >= 2) {	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	i = 0;	return;
1708	while ((entry = findEntryByIndex(cfg, i))) {
1709	for (line = entry->lines; line; line = line->next)	if (cfg->defaultImage == DEFAULT_SAVED)
1710	if (line->type == LT_TITLE) break;	fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712	if (!cfi->titleBracketed) {	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713	if (line && (line->numElements >= 2) &&	if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714	!strcmp(defaultLine->elements[1].item,	char *title;
1715	line->elements[1].item)) break;	int trueIndex, currentIndex;
1716	} else if (line) {
1717	if (!strcmp(defaultLine->elements[1].item,	trueIndex = 0;
1718	extractTitle(line))) break;	currentIndex = 0;
1719	}
1720	i++;	while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721	}	if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751	if (entry) cfg->defaultImage = i;	entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782	}	}
	}
	return cfg;
1783	}	}
1784
1785	static void writeDefault(FILE * out, char * indent,	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	char * separator, struct grubConfig * cfg) {	const char *prefix)
1787	struct singleEntry * entry;	{
1788	struct singleLine * line;	FILE *out;
1789	int i;	struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828	if (cfg->defaultImage == DEFAULT_SAVED)	tmpOutName = alloca(strlen(outName) + 2);
1829	fprintf(out, "%sdefault%ssaved\n", indent, separator);	sprintf(tmpOutName, "%s-", outName);
1830	else if (cfg->defaultImage > -1) {	out = fopen(tmpOutName, "w");
1831	if (cfg->cfi->defaultIsIndex) {	if (!out) {
1832	fprintf(out, "%sdefault%s%d\n", indent, separator,	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833	cfg->defaultImage);	tmpOutName, strerror(errno));
1834	} else {	return 1;
1835	int image = cfg->defaultImage;	}
1836
1837	entry = cfg->entries;	if (!stat(outName, &sb)) {
1838	while (entry && entry->skip) entry = entry->next;	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850	i = 0;	line = cfg->theLines;
1851	while (entry && i < image) {	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852	entry = entry->next;	while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881	while (entry && entry->skip) entry = entry->next;	line = line->next;
1882	i++;	}
	}
1883
1884	if (!entry) return;	if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889	line = entry->lines;	i = 0;
1890	while (line && line->type != LT_TITLE) line = line->next;	while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908	if (line && line->numElements >= 2)	if (tmpOutName) {
1909	fprintf(out, "%sdefault%s%s\n", indent, separator,	if (rename(tmpOutName, outName)) {
1910	line->elements[1].item);	fprintf(stderr,
1911	else if (line && (line->numElements == 1) &&	_("grubby: error moving %s to %s: %s\n"),
1912	cfg->cfi->titleBracketed) {	tmpOutName, outName, strerror(errno));
1913	fprintf(out, "%sdefault%s%s\n", indent, separator,	unlink(outName);
1914	extractTitle(line));	return 1;
1915	}	}
1916	}	}
1917	}
1918		return 0;
1919	}	}
1920
1921	static int writeConfig(struct grubConfig * cfg, char * outName,	static int numEntries(struct grubConfig *cfg)
1922	const char * prefix) {	{
1923	FILE * out;	int i = 0;
1924	struct singleLine * line;	struct singleEntry *entry;
1925	struct singleEntry * entry;
1926	char * tmpOutName;	entry = cfg->entries;
1927	int needs = MAIN_DEFAULT;	while (entry) {
1928	struct stat sb;	if (!entry->skip)
1929	int i;	i++;
1930		entry = entry->next;
1931	if (!strcmp(outName, "-")) {	}
1932	out = stdout;	return i;
1933	tmpOutName = NULL;	}
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to / */
	rc = chdir("/");
	do {
	buf = alloca(len + 1);
	rc = readlink(outName, buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1934
1935	line = cfg->theLines;	static char *findDiskForRoot()
1936	while (line) {	{
1937	if (line->type == LT_DEFAULT) {	int fd;
1938	writeDefault(out, line->indent, line->elements[0].indent, cfg);	char buf[65536];
1939	needs &= ~MAIN_DEFAULT;	char *devname;
1940	} else if (line->type == LT_FALLBACK) {	char *chptr;
1941	if (cfg->fallbackImage > -1)	int rc;
1942	fprintf(out, "%s%s%s%d\n", line->indent,
1943	line->elements[0].item, line->elements[0].indent,	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944	cfg->fallbackImage);	fprintf(stderr, "grubby: failed to open %s: %s\n",
1945	} else {	_PATH_MOUNTED, strerror(errno));
1946	if (lineWrite(out, line, cfg->cfi) == -1) {	return NULL;
1947	fprintf(stderr, _("grubby: error writing %s: %s\n"),	}
1948	tmpOutName, strerror(errno));
1949	fclose(out);	rc = read(fd, buf, sizeof(buf) - 1);
1950	unlink(tmpOutName);	if (rc <= 0) {
1951	return 1;	fprintf(stderr, "grubby: failed to read %s: %s\n",
1952	}	_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955	}	}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	line = line->next;	char *foundanswer = NULL;
	}
1961
1962	if (needs & MAIN_DEFAULT) {	while (chptr && chptr != buf + rc) {
1963	writeDefault(out, cfg->primaryIndent, "=", cfg);	devname = chptr;
	needs &= ~MAIN_DEFAULT;
	}
1964
1965	i = 0;	/*
1966	while ((entry = findEntryByIndex(cfg, i++))) {	* The first column of a mtab entry is the device, but if the
1967	if (entry->skip) continue;	* entry is a special device it won't start with /, so move
1968		* on to the next line.
1969		*/
1970		if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977	line = entry->lines;	/* Seek to the next space */
1978	while (line) {	chptr = strchr(chptr, ' ');
1979	if (lineWrite(out, line, cfg->cfi) == -1) {	if (!chptr) {
1980	fprintf(stderr, _("grubby: error writing %s: %s\n"),	fprintf(stderr, "grubby: error parsing %s: %s\n",
1981	tmpOutName, strerror(errno));	_PATH_MOUNTED, strerror(errno));
1982	fclose(out);	return NULL;
1983	unlink(tmpOutName);	}
1984	return 1;
1985	}	/*
1986	line = line->next;	* The second column of a mtab entry is the mount point, we
1987	}	* are looking for '/' obviously.
1988	}	*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994	if (tmpOutName) {	/* Next line */
1995	if (rename(tmpOutName, outName)) {	chptr = strchr(chptr, '\n');
1996	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	if (chptr)
1997	tmpOutName, outName, strerror(errno));	chptr++;
	unlink(outName);
	return 1;
1998	}	}
	}
1999
2000	return 0;	/* Return the last / entry found */
2001	}	if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007	static int numEntries(struct grubConfig *cfg) {	return NULL;
	int i = 0;
	struct singleEntry * entry;
	entry = cfg->entries;
	while (entry) {
	if (!entry->skip)
	i++;
	entry = entry->next;
	}
	return i;
2008	}	}
2009
2010	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	void printEntry(struct singleEntry *entry, FILE * f)
2011	int skipRemoved, int flags) {	{
2012	struct singleLine * line;	int i;
2013	char * fullName;	struct singleLine *line;
	int i;
	struct stat sb, sb2;
	char * dev;
	char * end;
	char * rootspec;
	line = entry->lines;
	while (line && line->type != LT_KERNEL) line = line->next;
	if (!line) return 0;
	if (skipRemoved && entry->skip) return 0;
	if (line->numElements < 2) return 0;
	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;
	fullName = alloca(strlen(bootPrefix) +
	strlen(line->elements[1].item) + 1);
	rootspec = getRootSpecifier(line->elements[1].item);
	sprintf(fullName, "%s%s", bootPrefix,
	line->elements[1].item + ((rootspec != NULL) ?
	strlen(rootspec) : 0));
	if (access(fullName, R_OK)) return 0;
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = entry->lines;
	while (line && line->type != LT_ROOT) line = line->next;
2014
2015	if (line && line->numElements >= 2) {	for (line = entry->lines; line; line = line->next) {
2016	dev = line->elements[1].item;	log_message(f, "DBG: %s", line->indent);
2017	} else {	for (i = 0; i < line->numElements; i++) {
2018	int type;	/* Need to handle this, because we strip the quotes from
2019	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS */	* menuentry when read it. */
2020	line = entry->lines;	if (line->type == LT_MENUENTRY && i == 1) {
2021		if (!isquote(*line->elements[i].item))
2022	type = ((entry->multiboot) ? LT_MBMODULE : LT_KERNELARGS);	log_message(f, "\'%s\'",
2023		line->elements[i].item);
2024	while (line && line->type != type) line = line->next;	else
2025		log_message(f, "%s",
2026	/* failed to find one */	line->elements[i].item);
2027	if (!line) return 0;	log_message(f, "%s", line->elements[i].indent);
2028
2029	for (i = 1; i < line->numElements; i++)	continue;
2030	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	}
2031	if (i < line->numElements)
2032	dev = line->elements[i].item + 5;	log_message(f, "%s%s",
2033	else {	line->elements[i].item,
2034	/* it failed too...  can't find root= */	line->elements[i].indent);
2035	return 0;	}
2036	}	log_message(f, "\n");
2037	}	}
2038	}	}
2039
2040	if (!strncmp(dev, "LABEL=", 6)) {	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041	dev += 6;	...)
2042		{
2043	/* check which device has this label */	static int once;
2044	dev = get_spec_by_volume_label(dev, &i, &i);	va_list argp, argq;
2045	if (!dev) return 0;
2046	}	va_start(argp, fmt);
2047
2048		va_copy(argq, argp);
2049		if (!once) {
2050		log_time(NULL);
2051		log_message(NULL, "command line: %s\n", saved_command_line);
2052		}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079		}
2080
2081	if (*dev == '/') {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	if (stat(dev, &sb))
	return 0;
	} else {
	sb.st_rdev = strtol(dev, &end, 16);
	if (*end) return 0;
	}
	stat("/", &sb2);
2082
2083	if (sb.st_rdev != sb2.st_dev) return 0;	static int endswith(const char *s, char c)
2084		{
2085		int slen;
2086
2087	return 1;	if (!s || !s[0])
2088	}	return 0;
2089		slen = strlen(s) - 1;
2090
2091	/* returns the first match on or after the one pointed to by index (if index	return s[slen] == c;
2092	is not NULL) which is not marked as skip */	}
	struct singleEntry * findEntryByPath(struct grubConfig * config,
	const char * kernel, const char * prefix,
	int * index) {
	struct singleEntry * entry = NULL;
	struct singleLine * line;
	int i;
	char * chptr;
	char * rootspec = NULL;
	enum lineType_e checkType = LT_KERNEL;
2093
2094	if (isdigit(*kernel)) {	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	int skipRemoved, int flags)
2096		{
2097		struct singleLine *line;
2098		char *fullName;
2099		int i;
2100		char *dev;
2101		char *rootspec;
2102		char *rootdev;
2103
2104		if (skipRemoved && entry->skip) {
2105		notSuitablePrintf(entry, 0, "marked to skip\n");
2106		return 0;
2107		}
2108
2109		line =
2110		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111		entry->lines);
2112		if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120		}
2121
2122	i = 0;	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	indexVars[i] = strtol(kernel, &chptr, 10);	notSuitablePrintf(entry, 1, "\n");
2124	while (*chptr == ',') {	return 1;
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
2125	}	}
2126
2127	if (*chptr) {	fullName = alloca(strlen(bootPrefix) +
2128	/* can't parse it, bail */	strlen(line->elements[1].item) + 1);
2129	return NULL;	rootspec = getRootSpecifier(line->elements[1].item);
2130		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132		beginswith(line->elements[1].item + rootspec_offset, '/');
2133		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135		if (access(fullName, R_OK)) {
2136		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137		return 0;
2138		}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144		} else {
2145		/* look for a lilo style LT_ROOT line */
2146		line = getLineByType(LT_ROOT, entry->lines);
2147
2148		if (line && line->numElements >= 2) {
2149		dev = line->elements[1].item;
2150		} else {
2151		/* didn't succeed in finding a LT_ROOT, let's try
2152		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154		*/
2155		line =
2156		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157		entry->lines);
2158
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165		for (i = 1; i < line->numElements; i++)
2166		if (!strncasecmp
2167		(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements)
2170		dev = line->elements[i].item + 5;
2171		else {
2172		notSuitablePrintf(entry, 0,
2173		"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
2179
2180	indexVars[i + 1] = -1;	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182	i = 0;	notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183	if (index) {	dev);
2184	while (i < *index) i++;	return 0;
2185	if (indexVars[i] == -1) return NULL;	} else
2186		dev = getpathbyspec(dev);
2187
2188		rootdev = findDiskForRoot();
2189		if (!rootdev) {
2190		notSuitablePrintf(entry, 0, "can't find root device\n");
2191		return 0;
2192		}
2193
2194		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195		notSuitablePrintf(entry, 0,
2196		"uuid missing: rootdev %s, dev %s\n",
2197		getuuidbydev(rootdev), getuuidbydev(dev));
2198		free(rootdev);
2199		return 0;
2200		}
2201
2202		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203		notSuitablePrintf(entry, 0,
2204		"uuid mismatch: rootdev %s, dev %s\n",
2205		getuuidbydev(rootdev), getuuidbydev(dev));
2206		free(rootdev);
2207		return 0;
2208	}	}
2209
2210	entry = findEntryByIndex(config, indexVars[i]);	free(rootdev);
2211	if (!entry) return NULL;	notSuitablePrintf(entry, 1, "\n");
2212
2213	line = entry->lines;	return 1;
2214	while (line && line->type != LT_KERNEL)	}
	line = line->next;
2215
2216	if (!line) return NULL;	/* returns the first match on or after the one pointed to by index (if index
2217		is not NULL) which is not marked as skip */
2218		struct singleEntry *findEntryByPath(struct grubConfig *config,
2219		const char *kernel, const char *prefix,
2220		int *index)
2221		{
2222		struct singleEntry *entry = NULL;
2223		struct singleLine *line;
2224		int i;
2225		char *chptr;
2226		char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228
2229		if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	if (index) *index = indexVars[i];	if (*chptr) {
2241	return entry;	/* can't parse it, bail */
2242	}	return NULL;
2243		}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
	} else {
	entry = findEntryByIndex(config, config->defaultImage);
	if (entry && entry->skip)
	entry = NULL;
	else if (index)
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2244
2245	while ((entry = findEntryByIndex(config, i))) {	indexVars[i + 1] = -1;
	if (!entry->skip) break;
	i++;
	}
2246
2247	if (entry && index)	i = 0;
2248	*index = i;	if (index) {
2249	} else {	while (i < *index) {
2250	if (index)	i++;
2251	i = *index;	if (indexVars[i] == -1)
2252	else	return NULL;
2253	i = 0;	}
2254		}
2255
2256	if (!strncmp(kernel, "TITLE=", 6)) {	entry = findEntryByIndex(config, indexVars[i]);
2257	prefix = "";	if (!entry)
2258	checkType = LT_TITLE;	return NULL;
2259	kernel += 6;
2260	}	line =
2261		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262	while ((entry = findEntryByIndex(config, i))) {	LT_KERNEL_16, entry->lines);
2263	line = entry->lines;	if (!line)
2264	while (line && line->type != checkType) line=line->next;	return NULL;
2265
2266		if (index)
2267	if (line && line->numElements >= 2 && !entry->skip) {	*index = indexVars[i];
2268	rootspec = getRootSpecifier(line->elements[1].item);	return entry;
2269	if (!strcmp(line->elements[1].item  +	}
2270	((rootspec != NULL) ? strlen(rootspec) : 0),
2271	kernel + strlen(prefix)))	if (!strcmp(kernel, "DEFAULT")) {
2272	break;	if (index && *index > config->defaultImage) {
2273	}	entry = NULL;
2274		} else {
2275	/* have to check multiboot lines too */	entry = findEntryByIndex(config, config->defaultImage);
2276	if (entry->multiboot) {	if (entry && entry->skip)
2277	while (line && line->type != LT_MBMODULE) line = line->next;	entry = NULL;
2278	if (line && line->numElements >= 2 && !entry->skip) {	else if (index)
2279	rootspec = getRootSpecifier(line->elements[1].item);	*index = config->defaultImage;
2280	if (!strcmp(line->elements[1].item  +	}
2281	((rootspec != NULL) ? strlen(rootspec) : 0),	} else if (!strcmp(kernel, "ALL")) {
2282	kernel + strlen(prefix)))	if (index)
2283	break;	i = *index;
2284	}	else
2285	}	i = 0;
2286
2287		while ((entry = findEntryByIndex(config, i))) {
2288		if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293		if (entry && index)
2294		*index = i;
2295		} else {
2296		if (index)
2297		i = *index;
2298		else
2299		i = 0;
2300
2301		if (!strncmp(kernel, "TITLE=", 6)) {
2302		prefix = "";
2303		checkType = LT_TITLE | LT_MENUENTRY;
2304		kernel += 6;
2305		}
2306
2307	i++;	for (entry = findEntryByIndex(config, i); entry;
2308		entry = entry->next, i++) {
2309		if (entry->skip)
2310		continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346		/* make sure this entry has a kernel identifier; this skips
2347		* non-Linux boot entries (could find netbsd etc, though, which is
2348		* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357		if (index)
2358		*index = i;
2359	}	}
2360
2361	if (index) *index = i;	return entry;
2362	}	}
2363
2364	if (!entry) return NULL;	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365		int *index)
2366		{
2367		struct singleEntry *entry;
2368		struct singleLine *line;
2369		int i;
2370		char *newtitle;
2371
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373		if (index && i < *index)
2374		continue;
2375		line = getLineByType(LT_TITLE, entry->lines);
2376		if (!line)
2377		line = getLineByType(LT_MENUENTRY, entry->lines);
2378		if (!line)
2379		continue;
2380		newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382		continue;
2383		if (!strcmp(title, newtitle))
2384		break;
2385		}
2386
2387	/* make sure this entry has a kernel identifier; this skips non-Linux	if (!entry)
2388	boot entries (could find netbsd etc, though, which is unfortunate) */	return NULL;
	line = entry->lines;
	while (line && line->type != LT_KERNEL) line = line->next;
	if (!line) {
	if (!index) index = &i;
	(*index)++;
	return findEntryByPath(config, kernel, prefix, index);
	}
2389
2390	return entry;	if (index)
2391		*index = i;
2392		return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398
2399	entry = cfg->entries;	entry = cfg->entries;
2400	while (index && entry) {	while (index && entry) {
2401	entry = entry->next;	entry = entry->next;
2402	index--;	index--;
2403	}	}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1142  struct singleEntry * findEntryByIndex(st	Line 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->defaultImage > -1) {
2419	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2420	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2421	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2422	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423		if (defTitle) {
2424		int index = 0;
2425		if (isnumber(defTitle)) {
2426		index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return entry;	return entry;
2468	}	}
2469
2470	index++;	index++;
2471	}	}
2472
2473	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2474		_("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		struct singleEntry *entry;
2504	if (!image) return;
2505		if (!image)
2506	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	return;
2507	entry->skip = 1;
2508	}	/* check and see if we're removing the default image */
2509		if (isdigit(*image)) {
2510	void setDefaultImage(struct grubConfig * config, int hasNew,	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	const char * defaultKernelPath, int newIsDefault,	if (entry)
2512	const char * prefix, int flags) {	entry->skip = 1;
2513	struct singleEntry * entry, * entry2, * newDefault;	return;
2514	int i, j;	}
2515
2516	if (newIsDefault) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	config->defaultImage = 0;	entry->skip = 1;
2518	return;	}
2519	} else if (defaultKernelPath) {
2520	i = 0;	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	config->defaultImage = i;	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524		{
2525		struct singleEntry *bootEntry, *newDefault;
2526		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2527
2528		/* initialize */
2529		currentLookupIndex = FIRST_ENTRY_INDEX;
2530
2531		/* handle the two cases where the user explictly picks the default
2532		* boot entry index as it would exist post-modification */
2533
2534		/* Case 1: user chose to make the latest boot entry the default */
2535		if (newBootEntryIsDefault) {
2536		config->defaultImage = newBootEntryIndex;
2537		return;
2538		}
2539
2540		/* Case 2: user picked an arbitrary index as the default boot entry */
2541		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2542		&& config->cfi->defaultIsIndex) {
2543		indexToVerify = newDefaultBootEntryIndex;
2544
2545		/* user chose to make latest boot entry the default */
2546		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2547		config->defaultImage = newBootEntryIndex;
2548		return;
2549		}
2550
2551		/* the user picks the default index based on the
2552		* order of the bootloader configuration after
2553		* modification; ensure we are checking for the
2554		* existence of the correct entry */
2555		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2556		if (!config->isModified)
2557		indexToVerify--;
2558		}
2559
2560		/* verify the user selected index will exist */
2561		if (findEntryByIndex(config, indexToVerify)) {
2562		config->defaultImage = newDefaultBootEntryIndex;
2563		} else {
2564		config->defaultImage = NO_DEFAULT_ENTRY;
2565		}
2566
2567		return;
2568		}
2569
2570		/* handle cases where the index value may shift */
2571
2572		/* check validity of existing default or first-entry-found
2573		selection */
2574		if (defaultKernelPath) {
2575		/* we must initialize this */
2576		firstKernelEntryIndex = 0;
2577		/* user requested first-entry-found */
2578		if (!findEntryByPath(config, defaultKernelPath,
2579		prefix, &firstKernelEntryIndex)) {
2580		/* don't change default if can't find match */
2581		config->defaultImage = NO_DEFAULT_ENTRY;
2582		return;
2583		}
2584
2585		config->defaultImage = firstKernelEntryIndex;
2586
2587		/* this is where we start looking for decrement later */
2588		currentLookupIndex = config->defaultImage;
2589
2590		if (isAddingBootEntry && !config->isModified &&
2591		(newBootEntryIndex < config->defaultImage)) {
2592		/* increment because new entry added before default */
2593		config->defaultImage++;
2594		}
2595	} else {	} else {
2596	config->defaultImage = -1;	/* check to see if the default is stored in the environment */
2597	return;	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2598		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2599		{
2600		if (config->cfi->defaultIsSaved) {
2601		if (config->cfi->getEnv) {
2602		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2603
2604		if (defaultTitle) {
2605		if (isnumber(defaultTitle)) {
2606		currentLookupIndex = atoi(defaultTitle);
2607		} else {
2608		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2609		}
2610		/* set the default Image to an actual index */
2611		config->defaultImage = currentLookupIndex;
2612		}
2613		}
2614		}
2615		}
2616		} else {
2617		/* use pre-existing default entry from the file*/
2618		currentLookupIndex = config->defaultImage;
2619		}
2620
2621		if (isAddingBootEntry
2622		&& (newBootEntryIndex <= config->defaultImage)) {
2623		config->defaultImage++;
2624
2625		if (config->isModified) {
2626		currentLookupIndex++;
2627		}
2628		}
2629		}
2630
2631		/* sanity check - is this entry index valid? */
2632		bootEntry = findEntryByIndex(config, currentLookupIndex);
2633
2634		if ((bootEntry && bootEntry->skip) || !bootEntry) {
2635		/* entry is to be skipped or is invalid */
2636		if (isAddingBootEntry) {
2637		config->defaultImage = newBootEntryIndex;
2638		return;
2639		}
2640		newDefault =
2641		findTemplate(config, prefix, &config->defaultImage, 1,
2642		flags);
2643		if (!newDefault) {
2644		config->defaultImage = NO_DEFAULT_ENTRY;
2645		}
2646
2647		return;
2648	}	}
	}
2649
2650	/* defaultImage now points to what we'd like to use, but before any order	currentLookupIndex--;
2651	changes */
2652	if (config->defaultImage == DEFAULT_SAVED)	/* decrement index by the total number of entries deleted */
2653	/* default is set to saved, we don't want to change it */
2654	return;	for (indexToVerify = currentLookupIndex;
2655		indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2656	if (config->defaultImage > -1)
2657	entry = findEntryByIndex(config, config->defaultImage);	bootEntry = findEntryByIndex(config, indexToVerify);
2658	else
2659	entry = NULL;	if (bootEntry && bootEntry->skip) {
2660		config->defaultImage--;
2661		}
2662		}
2663		}
2664
2665		void setFallbackImage(struct grubConfig *config, int hasNew)
2666		{
2667		struct singleEntry *entry, *entry2;
2668		int j;
2669
2670		if (config->fallbackImage == -1)
2671		return;
2672
2673		entry = findEntryByIndex(config, config->fallbackImage);
2674		if (!entry || entry->skip) {
2675		config->fallbackImage = -1;
2676		return;
2677		}
2678
	if (entry && !entry->skip) {
	/* we can preserve the default */
2679	if (hasNew)	if (hasNew)
2680	config->defaultImage++;	config->fallbackImage++;
2681
2682	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2683	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2684	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2685	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2686	}	config->fallbackImage--;
2687	} else if (hasNew) {	}
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2688	}	}
2689
2690	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2691	struct singleEntry * entry, * entry2;	{
2692	int j;	struct singleLine *line;
2693		char *root = NULL;
2694	if (config->fallbackImage == -1) return;	int i;
2695		int j;
2696	entry = findEntryByIndex(config, config->fallbackImage);
2697	if (!entry || entry->skip) {	printf("index=%d\n", index);
2698	config->fallbackImage = -1;
2699	return;	line =
2700	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2701		entry->lines);
2702		if (!line) {
2703		printf("non linux entry\n");
2704		return;
2705		}
2706
2707	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2708	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2709		else
2710	/* count the number of entries erased before this one */	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2711
2712	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2713	struct singleLine * line;	printf("args=\"");
2714	char * root = NULL;	i = 2;
2715	int i;	while (i < line->numElements) {
2716		if (!strncmp(line->elements[i].item, "root=", 5)) {
2717	line = entry->lines;	root = line->elements[i].item + 5;
2718	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2719		printf("%s%s", line->elements[i].item,
2720	printf("index=%d\n", index);	line->elements[i].indent);
2721		}
2722	printf("kernel=%s\n", line->elements[1].item);
2723		i++;
2724	if (line->numElements >= 3) {	}
2725	printf("args=\"");	printf("\"\n");
2726	i = 2;	} else {
2727	while (i < line->numElements) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2728	if (!strncmp(line->elements[i].item, "root=", 5)) {	if (line) {
2729	root = line->elements[i].item + 5;	char *s;
2730	} else {
2731	printf("%s%s", line->elements[i].item,	printf("args=\"");
2732	line->elements[i].indent);	i = 1;
2733	}	while (i < line->numElements) {
2734		if (!strncmp
2735		(line->elements[i].item, "root=", 5)) {
2736		root = line->elements[i].item + 5;
2737		} else {
2738		s = line->elements[i].item;
2739
2740		printf("%s%s", s,
2741		line->elements[i].indent);
2742		}
2743
2744		i++;
2745		}
2746
2747		s = line->elements[i - 1].indent;
2748		printf("\"\n");
2749		}
2750		}
2751
2752		if (!root) {
2753		line = getLineByType(LT_ROOT, entry->lines);
2754		if (line && line->numElements >= 2)
2755		root = line->elements[1].item;
2756		}
2757
2758		if (root) {
2759		char *s = alloca(strlen(root) + 1);
2760
2761		strcpy(s, root);
2762		if (s[strlen(s) - 1] == '"')
2763		s[strlen(s) - 1] = '\0';
2764		/* make sure the root doesn't have a trailing " */
2765		printf("root=%s\n", s);
2766		}
2767
2768		line =
2769		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2770		entry->lines);
2771
2772	i++;	if (line && line->numElements >= 2) {
2773		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2774		printf("initrd=");
2775		else
2776		printf("initrd=%s", prefix);
2777
2778		for (i = 1; i < line->numElements; i++)
2779		printf("%s%s", line->elements[i].item,
2780		line->elements[i].indent);
2781		printf("\n");
2782	}	}
2783	printf("\"\n");
2784	} else {	line = getLineByType(LT_TITLE, entry->lines);
	line = entry->lines;
	while (line && line->type != LT_KERNELARGS) line=line->next;
2785	if (line) {	if (line) {
2786	char * s;	char *entryTitle;
2787		/* if we can extractTitle, then it's a zipl config and
2788		* if not then we go ahead with what's existed prior */
2789		entryTitle = extractTitle(config, line);
2790		if (!entryTitle) {
2791		entryTitle=line->elements[1].item;
2792		}
2793		printf("title=%s\n", entryTitle);
2794		} else {
2795		char *title;
2796		line = getLineByType(LT_MENUENTRY, entry->lines);
2797		if (line) {
2798		title = grub2ExtractTitle(line);
2799		if (title)
2800		printf("title=%s\n", title);
2801		}
2802		}
2803
2804		for (j = 0, line = entry->lines; line; line = line->next) {
2805		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2806		if (!strncmp
2807		(prefix, line->elements[1].item, strlen(prefix)))
2808		printf("mbmodule%d=", j);
2809		else
2810		printf("mbmodule%d=%s", j, prefix);
2811
2812		for (i = 1; i < line->numElements; i++)
2813		printf("%s%s", line->elements[i].item,
2814		line->elements[i].indent);
2815		printf("\n");
2816		j++;
2817		}
2818		}
2819		}
2820
2821		int isSuseSystem(void)
2822		{
2823		const char *path;
2824		const static char default_path[] = "/etc/SuSE-release";
2825
2826		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2827		path = default_path;
2828
2829		if (!access(path, R_OK))
2830		return 1;
2831		return 0;
2832		}
2833
2834		int isSuseGrubConf(const char *path)
2835		{
2836		FILE *grubConf;
2837		char *line = NULL;
2838		size_t len = 0, res = 0;
2839
2840		grubConf = fopen(path, "r");
2841		if (!grubConf) {
2842		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2843		path);
2844		return 0;
2845		}
2846
2847		while ((res = getline(&line, &len, grubConf)) != -1) {
2848		if (!strncmp(line, "setup", 5)) {
2849		fclose(grubConf);
2850		free(line);
2851		return 1;
2852		}
2853		}
2854
2855		dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2856		path);
2857
2858		fclose(grubConf);
2859		free(line);
2860		return 0;
2861		}
2862
2863		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2864		{
2865		FILE *grubConf;
2866		char *line = NULL;
2867		size_t res = 0, len = 0;
2868
2869		if (!path)
2870		return 1;
2871		if (!lbaPtr)
2872		return 1;
2873
2874		grubConf = fopen(path, "r");
2875		if (!grubConf)
2876		return 1;
2877
2878		while ((res = getline(&line, &len, grubConf)) != -1) {
2879		if (line[res - 1] == '\n')
2880		line[res - 1] = '\0';
2881		else if (len > res)
2882		line[res] = '\0';
2883		else {
2884		line = realloc(line, res + 1);
2885		line[res] = '\0';
2886		}
2887
2888		if (!strncmp(line, "setup", 5)) {
2889		if (strstr(line, "--force-lba")) {
2890		*lbaPtr = 1;
2891		} else {
2892		*lbaPtr = 0;
2893		}
2894		dbgPrintf("lba: %i\n", *lbaPtr);
2895		break;
2896		}
2897		}
2898
2899		free(line);
2900		fclose(grubConf);
2901		return 0;
2902		}
2903
2904	printf("args=\"");	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2905	i = 1;	{
2906	while (i < line->numElements) {	FILE *grubConf;
2907	if (!strncmp(line->elements[i].item, "root=", 5)) {	char *line = NULL;
2908	root = line->elements[i].item + 5;	size_t res = 0, len = 0;
2909		char *lastParamPtr = NULL;
2910		char *secLastParamPtr = NULL;
2911		char installDeviceNumber = '\0';
2912		char *bounds = NULL;
2913
2914		if (!path)
2915		return 1;
2916		if (!devicePtr)
2917		return 1;
2918
2919		grubConf = fopen(path, "r");
2920		if (!grubConf)
2921		return 1;
2922
2923		while ((res = getline(&line, &len, grubConf)) != -1) {
2924		if (strncmp(line, "setup", 5))
2925		continue;
2926
2927		if (line[res - 1] == '\n')
2928		line[res - 1] = '\0';
2929		else if (len > res)
2930		line[res] = '\0';
2931		else {
2932		line = realloc(line, res + 1);
2933		line[res] = '\0';
2934		}
2935
2936		lastParamPtr = bounds = line + res;
2937
2938		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2939		while (!isspace(*lastParamPtr))
2940		lastParamPtr--;
2941		lastParamPtr++;
2942
2943		secLastParamPtr = lastParamPtr - 2;
2944		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2945
2946		if (lastParamPtr + 3 > bounds) {
2947		dbgPrintf("lastParamPtr going over boundary");
2948		fclose(grubConf);
2949		free(line);
2950		return 1;
2951		}
2952		if (!strncmp(lastParamPtr, "(hd", 3))
2953		lastParamPtr += 3;
2954		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2955
2956		/*
2957		* Second last parameter will decide wether last parameter is
2958		* an IMAGE_DEVICE or INSTALL_DEVICE
2959		*/
2960		while (!isspace(*secLastParamPtr))
2961		secLastParamPtr--;
2962		secLastParamPtr++;
2963
2964		if (secLastParamPtr + 3 > bounds) {
2965		dbgPrintf("secLastParamPtr going over boundary");
2966		fclose(grubConf);
2967		free(line);
2968		return 1;
2969		}
2970		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2971		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2972		secLastParamPtr += 3;
2973		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2974		installDeviceNumber = *secLastParamPtr;
2975	} else {	} else {
2976	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
2977		}
2978
2979	printf("%s%s", s, line->elements[i].indent);	*devicePtr = malloc(6);
2980		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2981		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2982		fclose(grubConf);
2983		free(line);
2984		return 0;
2985		}
2986
2987		free(line);
2988		fclose(grubConf);
2989		return 1;
2990		}
2991
2992		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2993		{
2994		FILE *deviceMap;
2995		char *line = NULL;
2996		size_t res = 0, len = 0;
2997		char *devicePtr;
2998		char *bounds = NULL;
2999		const char *path;
3000		const static char default_path[] = "/boot/grub/device.map";
3001
3002		if (!device)
3003		return 1;
3004		if (!bootPtr)
3005		return 1;
3006
3007		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3008		path = default_path;
3009
3010		dbgPrintf("opening grub device.map file from: %s\n", path);
3011		deviceMap = fopen(path, "r");
3012		if (!deviceMap)
3013		return 1;
3014
3015		while ((res = getline(&line, &len, deviceMap)) != -1) {
3016		if (!strncmp(line, "#", 1))
3017		continue;
3018
3019		if (line[res - 1] == '\n')
3020		line[res - 1] = '\0';
3021		else if (len > res)
3022		line[res] = '\0';
3023		else {
3024		line = realloc(line, res + 1);
3025		line[res] = '\0';
3026	}	}
3027
3028	i++;	devicePtr = line;
3029	}	bounds = line + res;
3030
3031	s = line->elements[i - 1].indent;	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3032	printf("\"\n");	devicePtr++;
3033		dbgPrintf("device: %s\n", devicePtr);
3034
3035		if (!strncmp(devicePtr, device, strlen(device))) {
3036		devicePtr += strlen(device);
3037		while (isspace(*devicePtr)
3038		&& ((devicePtr + 1) <= bounds))
3039		devicePtr++;
3040
3041		*bootPtr = strdup(devicePtr);
3042		break;
3043		}
3044	}	}
	}
3045
3046	if (!root) {	free(line);
3047	line = entry->lines;	fclose(deviceMap);
3048	while (line && line->type != LT_ROOT) line = line->next;	return 0;
3049		}
3050
3051	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3052	root=line->elements[1].item;	{
3053	}	char *grubDevice;
3054
3055	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3056	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
3057		else
3058	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);
	}
3059
3060	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3061	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
3062		else
3063		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3064
3065	if (line && line->numElements >= 2) {	free(grubDevice);
3066	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");
	}
3067	}	}
3068
3069	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3070	FILE * in;	{
3071	char buf[1024];	/*
3072	char * chptr;	* This SuSE grub configuration file at this location is not your
3073	char * start;	* average grub configuration file, but instead the grub commands
3074	char * param;	* used to setup grub on that system.
3075		*/
3076	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
3077	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);
	}
3078
3079	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3080		path = default_path;
3081
3082	return 0;	if (!isSuseGrubConf(path))
3083		return 1;
3084
3085		if (lbaPtr) {
3086		*lbaPtr = 0;
3087		if (suseGrubConfGetLba(path, lbaPtr))
3088		return 1;
3089		}
3090
3091		if (bootPtr) {
3092		*bootPtr = NULL;
3093		suseGrubConfGetBoot(path, bootPtr);
3094		}
3095
3096		return 0;
3097	}	}
3098
3099	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3100	char * boot;	{
3101	int lba;	FILE *in;
3102		char buf[1024];
3103	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
3104	if (lba) printf("lba\n");	char *start;
3105	if (boot) printf("boot=%s\n", boot);	char *param;
3106	}
3107		in = fopen("/etc/sysconfig/grub", "r");
3108		if (!in)
3109		return 1;
3110
3111		if (lbaPtr)
3112		*lbaPtr = 0;
3113		if (bootPtr)
3114		*bootPtr = NULL;
3115
3116		while (fgets(buf, sizeof(buf), in)) {
3117		start = buf;
3118		while (isspace(*start))
3119		start++;
3120		if (*start == '#')
3121		continue;
3122
3123		chptr = strchr(start, '=');
3124		if (!chptr)
3125		continue;
3126		chptr--;
3127		while (*chptr && isspace(*chptr))
3128		chptr--;
3129		chptr++;
3130		*chptr = '\0';
3131
3132		param = chptr + 1;
3133		while (*param && isspace(*param))
3134		param++;
3135		if (*param == '=') {
3136		param++;
3137		while (*param && isspace(*param))
3138		param++;
3139		}
3140
3141		chptr = param;
3142		while (*chptr && !isspace(*chptr))
3143		chptr++;
3144		*chptr = '\0';
3145
3146		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3147		*lbaPtr = 1;
3148		else if (!strcmp(start, "boot") && bootPtr)
3149		*bootPtr = strdup(param);
3150		}
3151
3152		fclose(in);
3153
3154		return 0;
3155	}	}
3156
3157	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3158	const char * prefix) {	{
3159	int i = 0;	char *boot = NULL;
3160	struct singleEntry * entry;	int lba;
3161	struct singleLine * line;
3162		if (isSuseSystem()) {
3163	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3164	if (!entry) {	free(boot);
3165	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3166	return 1;	}
3167	}	} else {
3168		if (parseSysconfigGrub(&lba, &boot)) {
3169		free(boot);
3170		return;
3171		}
3172		}
3173
3174	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3175	be a better way */	printf("lba\n");
3176	if (config->cfi == &grubConfigType) {	if (boot) {
3177	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3178	} 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);
3179	}	}
3180		}
3181
3182	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3183	while (line && line->type != LT_LBA) line = line->next;	{
3184	if (line) printf("lba\n");	int i = 0;
3185	}	struct singleEntry *entry;
3186		struct singleLine *line;
3187
3188		entry = findEntryByPath(config, kernel, prefix, &i);
3189		if (!entry) {
3190		fprintf(stderr, _("grubby: kernel not found\n"));
3191		return 1;
3192		}
3193
3194		/* this is a horrible hack to support /etc/sysconfig/grub; there must
3195		be a better way */
3196		if (config->cfi == &grubConfigType) {
3197		dumpSysconfigGrub();
3198		} else {
3199		line = getLineByType(LT_BOOT, config->theLines);
3200		if (line && line->numElements >= 1) {
3201		printf("boot=%s\n", line->elements[1].item);
3202		}
3203
3204		line = getLineByType(LT_LBA, config->theLines);
3205		if (line)
3206		printf("lba\n");
3207		}
3208
3209	displayEntry(entry, prefix, i);	displayEntry(config, entry, prefix, i);
3210
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
3211	i++;	i++;
3212	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3213		displayEntry(config, entry, prefix, i);
3214		i++;
3215		}
3216
3217	return 0;	return 0;
3218		}
3219
3220		struct singleLine *addLineTmpl(struct singleEntry *entry,
3221		struct singleLine *tmplLine,
3222		struct singleLine *prevLine,
3223		const char *val, struct configFileInfo *cfi)
3224		{
3225		struct singleLine *newLine = lineDup(tmplLine);
3226
3227		if (isEfi && cfi == &grub2ConfigType) {
3228		enum lineType_e old = newLine->type;
3229		newLine->type = preferredLineType(newLine->type, cfi);
3230		if (old != newLine->type)
3231		newLine->elements[0].item =
3232		getKeyByType(newLine->type, cfi);
3233		}
3234
3235		if (val) {
3236		/* override the inherited value with our own.
3237		* This is a little weak because it only applies to elements[1]
3238		*/
3239		if (newLine->numElements > 1)
3240		removeElement(newLine, 1);
3241		insertElement(newLine, val, 1, cfi);
3242
3243		/* but try to keep the rootspec from the template... sigh */
3244		if (tmplLine->
3245		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3246		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3247		LT_INITRD_16)) {
3248		char *rootspec =
3249		getRootSpecifier(tmplLine->elements[1].item);
3250		if (rootspec != NULL) {
3251		free(newLine->elements[1].item);
3252		newLine->elements[1].item =
3253		sdupprintf("%s%s", rootspec, val);
3254		}
3255		}
3256		}
3257
3258		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3259		newLine->elements[0].item : "");
3260
3261		if (!entry->lines) {
3262		/* first one on the list */
3263		entry->lines = newLine;
3264		} else if (prevLine) {
3265		/* add after prevLine */
3266		newLine->next = prevLine->next;
3267		prevLine->next = newLine;
3268		}
3269
3270		return newLine;
3271	}	}
3272
3273	/* val may be NULL */	/* val may be NULL */
3274	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3275	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3276	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3277	char * val) {	const char *val)
3278	struct singleLine * line, * prev;	{
3279	int i;	struct singleLine *line, *prev;
3280		struct keywordTypes *kw;
3281	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3282	if (cfi->keywords[i].type == type) break;
3283	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3284	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3285		*/
3286	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3287	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3288	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3289	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3290	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3291	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3292	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3293	prev = NULL;	tmpl.elements[0].indent = "";
3294	while (line) {	val = NULL;
3295	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3296	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3297		if (!val) {
3298		fprintf(stderr,
3299		"Line type LT_MENUENTRY requires a value\n");
3300		abort();
3301		}
3302		kw = getKeywordByType(type, cfi);
3303		if (!kw) {
3304		fprintf(stderr,
3305		"Looking up keyword for unknown type %d\n",
3306		type);
3307		abort();
3308		}
3309		tmpl.indent = "";
3310		tmpl.type = type;
3311		tmpl.numElements = 3;
3312		tmpl.elements =
3313		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3314		tmpl.elements[0].item = kw->key;
3315		tmpl.elements[0].indent = alloca(2);
3316		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3317		tmpl.elements[1].item = (char *)val;
3318		tmpl.elements[1].indent = alloca(2);
3319		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3320		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3321		strcpy(tmpl.elements[2].item, lineend);
3322		tmpl.elements[2].indent = "";
3323		} else {
3324		kw = getKeywordByType(type, cfi);
3325		if (!kw) {
3326		fprintf(stderr,
3327		"Looking up keyword for unknown type %d\n",
3328		type);
3329		abort();
3330		}
3331		tmpl.type = type;
3332		tmpl.numElements = val ? 2 : 1;
3333		tmpl.elements =
3334		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3335		tmpl.elements[0].item = kw->key;
3336		tmpl.elements[0].indent = alloca(2);
3337		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3338		if (val) {
3339		tmpl.elements[1].item = (char *)val;
3340		tmpl.elements[1].indent = "";
3341		}
3342	}	}
	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;
3343
3344	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3345	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3346	else	* which may not be ideal? If there are no lines or we are looking at
3347	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3348	} else {	* indented differently from the rest) */
3349	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3350	line->indent = strdup(defaultIndent);	if (line->numElements)
3351	line->next = NULL;	prev = line;
3352	}	/* fall back on the last line if prev isn't otherwise set */
3353		if (!line->next && !prev)
3354		prev = line;
3355		}
3356
3357		struct singleLine *menuEntry;
3358		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3359		if (tmpl.type == LT_ENTRY_END) {
3360		if (menuEntry)
3361		tmpl.indent = menuEntry->indent;
3362		else
3363		tmpl.indent = defaultIndent ? : "";
3364		} else if (tmpl.type != LT_MENUENTRY) {
3365		if (menuEntry)
3366		tmpl.indent = "\t";
3367		else if (prev == entry->lines)
3368		tmpl.indent = defaultIndent ? : "";
3369		else
3370		tmpl.indent = prev->indent;
3371		}
3372
3373	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3374	line->type = type;	}
3375	line->numElements = val ? 2 : 1;
3376	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3377	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3378	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3379	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
3380	line->elements[0].indent[1] = '\0';
3381		for (i = 0; i < line->numElements; i++) {
3382	if (val) {	free(line->elements[i].item);
3383	line->elements[1].item = val;	free(line->elements[i].indent);
3384	line->elements[1].indent = strdup("");	}
3385	}	free(line->elements);
3386	} 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("");
	}
3387
3388	return line;	if (line == entry->lines) {
3389		entry->lines = line->next;
3390		} else {
3391		prev = entry->lines;
3392		while (prev->next != line)
3393		prev = prev->next;
3394		prev->next = line->next;
3395		}
3396
3397		free(line);
3398	}	}
3399
3400	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3401	struct singleLine * prev;	{
3402	int i;	struct singleLine newLine = {
3403		.indent = tmplLine->indent,
3404		.type = tmplLine->type,
3405		.next = tmplLine->next,
3406		};
3407		int firstQuotedItem = -1;
3408		int quoteLen = 0;
3409		int j;
3410		int element = 0;
3411		char *c;
3412
3413		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3414		strcpy(c, tmplLine->elements[0].item);
3415		insertElement(&newLine, c, element++, cfi);
3416		free(c);
3417		c = NULL;
3418
3419		for (j = 1; j < tmplLine->numElements; j++) {
3420		if (firstQuotedItem == -1) {
3421		quoteLen += strlen(tmplLine->elements[j].item);
3422
3423		if (isquote(tmplLine->elements[j].item[0])) {
3424		firstQuotedItem = j;
3425		quoteLen +=
3426		strlen(tmplLine->elements[j].indent);
3427		} else {
3428		c = malloc(quoteLen + 1);
3429		strcpy(c, tmplLine->elements[j].item);
3430		insertElement(&newLine, c, element++, cfi);
3431		free(c);
3432		quoteLen = 0;
3433		}
3434		} else {
3435		int itemlen = strlen(tmplLine->elements[j].item);
3436		quoteLen += itemlen;
3437		quoteLen += strlen(tmplLine->elements[j].indent);
3438
3439		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3440		c = malloc(quoteLen + 1);
3441		c[0] = '\0';
3442		for (int i = firstQuotedItem; i < j + 1; i++) {
3443		strcat(c, tmplLine->elements[i].item);
3444		strcat(c, tmplLine->elements[i].indent);
3445		}
3446		insertElement(&newLine, c, element++, cfi);
3447		free(c);
3448
3449		firstQuotedItem = -1;
3450		quoteLen = 0;
3451		}
3452		}
3453		}
3454		while (tmplLine->numElements)
3455		removeElement(tmplLine, 0);
3456		if (tmplLine->elements)
3457		free(tmplLine->elements);
3458
3459	for (i = 0; i < line->numElements; i++) {	tmplLine->numElements = newLine.numElements;
3460	free(line->elements[i].item);	tmplLine->elements = newLine.elements;
3461	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
3462
3463	if (line == entry->lines) {	static void insertElement(struct singleLine *line,
3464	entry->lines = line->next;	const char *item, int insertHere,
3465	} else {	struct configFileInfo *cfi)
3466	prev = entry->lines;	{
3467	while (prev->next != line) prev = prev->next;	struct keywordTypes *kw;
3468	prev->next = line->next;	char indent[2] = "";
3469	}
3470		/* sanity check */
3471		if (insertHere > line->numElements) {
3472		dbgPrintf
3473		("insertElement() adjusting insertHere from %d to %d\n",
3474		insertHere, line->numElements);
3475		insertHere = line->numElements;
3476		}
3477
3478		line->elements = realloc(line->elements, (line->numElements + 1) *
3479		sizeof(*line->elements));
3480		memmove(&line->elements[insertHere + 1],
3481		&line->elements[insertHere],
3482		(line->numElements - insertHere) * sizeof(*line->elements));
3483		line->elements[insertHere].item = strdup(item);
3484
3485		kw = getKeywordByType(line->type, cfi);
3486
3487		if (line->numElements == 0) {
3488		indent[0] = '\0';
3489		} else if (insertHere == 0) {
3490		indent[0] = kw->nextChar;
3491		} else if (kw->separatorChar != '\0') {
3492		indent[0] = kw->separatorChar;
3493		} else {
3494		indent[0] = ' ';
3495		}
3496
3497		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3498		/* move the end-of-line forward */
3499		line->elements[insertHere].indent =
3500		line->elements[insertHere - 1].indent;
3501		line->elements[insertHere - 1].indent = strdup(indent);
3502		} else {
3503		line->elements[insertHere].indent = strdup(indent);
3504		}
3505
3506		line->numElements++;
3507
3508	free(line);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3509		line->elements[0].item,
3510		line->elements[insertHere].item,
3511		line->elements[insertHere].indent, insertHere);
3512	}	}
3513
3514	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3515	char * first, * second;	{
3516	char * chptr;	int i;
3517
3518	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3519	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3520		return;
3521	chptr = strchr(first, '=');
3522	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3523		removeHere, line->elements[removeHere].item);
3524	chptr = strchr(second, '=');
3525	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3526
3527	return strcmp(first, second);	if (removeHere > 1) {
3528	}	/* previous argument gets this argument's post-indentation */
3529		free(line->elements[removeHere - 1].indent);
3530	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3531	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3532	const char * removeArgs, int multibootArgs) {	} else {
3533	struct singleEntry * entry;	free(line->elements[removeHere].indent);
3534	struct singleLine * line, * rootLine;	}
3535	int index = 0;
3536	int i, j, k;	/* now collapse the array, but don't bother to realloc smaller */
3537	const char ** newArgs, ** oldArgs;	for (i = removeHere; i < line->numElements - 1; i++)
3538	const char ** arg;	line->elements[i] = line->elements[i + 1];
3539	const char * chptr;
3540	int useKernelArgs = 0;	line->numElements--;
3541	int useRoot = 0;	}
3542	int firstElement;
3543	int *usedElements, *usedArgs;	int argMatch(const char *one, const char *two)
3544		{
3545	if (!image) return 0;	char *first, *second;
3546		char *chptr;
3547	if (!addArgs) {
3548	newArgs = malloc(sizeof(*newArgs));	first = strcpy(alloca(strlen(one) + 1), one);
3549	*newArgs = NULL;	second = strcpy(alloca(strlen(two) + 1), two);
3550	} else {
3551	if (poptParseArgvString(addArgs, NULL, &newArgs)) {	chptr = strchr(first, '=');
3552	fprintf(stderr,	if (chptr)
3553	_("grubby: error separating arguments '%s'\n"), addArgs);	*chptr = '\0';
3554	return 1;
3555		chptr = strchr(second, '=');
3556		if (chptr)
3557		*chptr = '\0';
3558
3559		return strcmp(first, second);
3560		}
3561
3562		int updateActualImage(struct grubConfig *cfg, const char *image,
3563		const char *prefix, const char *addArgs,
3564		const char *removeArgs, int multibootArgs)
3565		{
3566		struct singleEntry *entry;
3567		struct singleLine *line, *rootLine;
3568		int index = 0;
3569		int i, k;
3570		const char **newArgs, **oldArgs;
3571		const char **arg;
3572		int useKernelArgs, useRoot;
3573		int firstElement;
3574		int *usedElements;
3575		int doreplace;
3576
3577		if (!image)
3578		return 0;
3579
3580		if (!addArgs) {
3581		newArgs = malloc(sizeof(*newArgs));
3582		*newArgs = NULL;
3583		} else {
3584		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3585		fprintf(stderr,
3586		_("grubby: error separating arguments '%s'\n"),
3587		addArgs);
3588		return 1;
3589		}
3590	}	}
	}
3591
3592	if (!removeArgs) {	if (!removeArgs) {
3593	oldArgs = malloc(sizeof(*oldArgs));	oldArgs = malloc(sizeof(*oldArgs));
3594	*oldArgs = NULL;	*oldArgs = NULL;
3595	} else {	} else {
3596	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3597	fprintf(stderr,	fprintf(stderr,
3598	_("grubby: error separating arguments '%s'\n"), removeArgs);	_("grubby: error separating arguments '%s'\n"),
3599	free(newArgs);	removeArgs);
3600	return 1;	free(newArgs);
3601		return 1;
3602		}
3603	}	}
	}
3604
3605	for (i = 0; cfg->cfi->keywords[i].key; i++)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3606	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3607
3608	if (cfg->cfi->keywords[i].key)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3609	useKernelArgs = 1;	&& !multibootArgs);
3610
3611	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;
3612
3613	if (cfg->cfi->keywords[i].key)	if (multibootArgs && !entry->multiboot)
3614	useRoot = 1;	continue;
3615
3616	k = 0;	/* Determine where to put the args.  If this config supports
3617	for (arg = newArgs; *arg; arg++)	* LT_KERNELARGS, use that.  Otherwise use
3618	k++;	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3619	usedArgs = calloc(k, sizeof(int));	*/
3620		if (useKernelArgs) {
3621	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	line = getLineByType(LT_KERNELARGS, entry->lines);
3622	index++;	if (!line) {
3623		/* no LT_KERNELARGS, need to add it */
3624	line = entry->lines;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3625	while (line && line->type != LT_KERNEL) line = line->next;	cfg->secondaryIndent, NULL);
3626	if (!line) continue;	}
3627	firstElement = 2;	firstElement = 1;
3628
3629	if (entry->multiboot && !multibootArgs) {	} else if (multibootArgs) {
3630	/* first mb module line is the real kernel */	line = getLineByType(LT_HYPER, entry->lines);
3631	while (line && line->type != LT_MBMODULE) line = line->next;	if (!line) {
3632	firstElement = 2;	/* a multiboot entry without LT_HYPER? */
3633	} else if (useKernelArgs) {	continue;
3634	while (line && line->type != LT_KERNELARGS) line = line->next;	}
3635	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, '=');
3636
	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(" ");
3637	} else {	} else {
3638	/* First thing on this line; treat a bit differently. Note	line =
3639	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3640	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3641	line->elements[line->numElements].indent = strdup("");	entry->lines);
3642		if (!line) {
3643		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3644		continue;
3645		}
3646		firstElement = 2;
3647	}	}
3648
3649	line->numElements++;	/* handle the elilo case which does:
3650		*   append="hypervisor args -- kernel args"
3651		*/
3652		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3653		/* this is a multiboot entry, make sure there's
3654		* -- on the args line
3655		*/
3656		for (i = firstElement; i < line->numElements; i++) {
3657		if (!strcmp(line->elements[i].item, "--"))
3658		break;
3659		}
3660		if (i == line->numElements) {
3661		/* assume all existing args are kernel args,
3662		* prepend -- to make it official
3663		*/
3664		insertElement(line, "--", firstElement,
3665		cfg->cfi);
3666		i = firstElement;
3667		}
3668		if (!multibootArgs) {
3669		/* kernel args start after the -- */
3670		firstElement = i + 1;
3671		}
3672		} else if (cfg->cfi->mbConcatArgs) {
3673		/* this is a non-multiboot entry, remove hyper args */
3674		for (i = firstElement; i < line->numElements; i++) {
3675		if (!strcmp(line->elements[i].item, "--"))
3676		break;
3677		}
3678		if (i < line->numElements) {
3679		/* remove args up to -- */
3680		while (strcmp
3681		(line->elements[firstElement].item,
3682		"--"))
3683		removeElement(line, firstElement);
3684		/* remove -- */
3685		removeElement(line, firstElement);
3686		}
3687		}
3688
3689		usedElements = calloc(line->numElements, sizeof(*usedElements));
3690
3691		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3692
3693	/* if we updated a root= here even though there is a	doreplace = 1;
3694	LT_ROOT available we need to remove the LT_ROOT entry	for (i = firstElement; i < line->numElements; i++) {
3695	(this will happen if we switch from a device to a label) */	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3696	if (useRoot && !strncmp(*arg, "root=", 5)) {	!strcmp(line->elements[i].item, "--")) {
3697	rootLine = entry->lines;	/* reached the end of hyper args, insert here */
3698	while (rootLine && rootLine->type != LT_ROOT)	doreplace = 0;
3699	rootLine = rootLine->next;	break;
3700	if (rootLine) {	}
3701	removeLine(entry, rootLine);	if (usedElements[i])
3702	}	continue;
3703	}	if (!argMatch(line->elements[i].item, *arg)) {
3704	}	usedElements[i] = 1;
3705	k++;	break;
3706	}	}
3707		}
3708	free(usedElements);
3709		if (i < line->numElements && doreplace) {
3710	/* no arguments to remove (i.e. no append line) */	/* direct replacement */
3711	if (!line) continue;	free(line->elements[i].item);
3712		line->elements[i].item = strdup(*arg);
3713	/* this won't remove an LT_ROOT item properly (but then again,
3714	who cares? */	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3715	for (arg = oldArgs; *arg; arg++) {	/* root= replacement */
3716	for (i = firstElement; i < line->numElements; i++)	rootLine = getLineByType(LT_ROOT, entry->lines);
3717	if (!argMatch(line->elements[i].item, *arg))	if (rootLine) {
3718	break;	free(rootLine->elements[1].item);
3719		rootLine->elements[1].item =
3720	if (i < line->numElements) {	strdup(*arg + 5);
3721	/* if this isn't the first argument the previous argument	} else {
3722	gets this arguments post-indention */	rootLine =
3723	if (i > firstElement) {	addLine(entry, cfg->cfi, LT_ROOT,
3724	free(line->elements[i - 1].indent);	cfg->secondaryIndent,
3725	line->elements[i - 1].indent = line->elements[i].indent;	*arg + 5);
3726		}
3727		}
3728
3729		else {
3730		/* insert/append */
3731		insertElement(line, *arg, i, cfg->cfi);
3732		usedElements =
3733		realloc(usedElements,
3734		line->numElements *
3735		sizeof(*usedElements));
3736		memmove(&usedElements[i + 1], &usedElements[i],
3737		line->numElements - i - 1);
3738		usedElements[i] = 1;
3739
3740		/* if we updated a root= here even though
3741		* there is a LT_ROOT available we need to
3742		* remove the LT_ROOT entry (this will happen
3743		* if we switch from a device to a label) */
3744		if (useRoot && !strncmp(*arg, "root=", 5)) {
3745		rootLine =
3746		getLineByType(LT_ROOT,
3747		entry->lines);
3748		if (rootLine)
3749		removeLine(entry, rootLine);
3750		}
3751		}
3752	}	}
	free(line->elements[i].item);
3753
3754	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3755
3756	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3757	}	for (i = firstElement; i < line->numElements; i++) {
3758	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3759		!strcmp(line->elements[i].item, "--"))
3760		/* reached the end of hyper args, stop here */
3761		break;
3762		if (!argMatch(line->elements[i].item, *arg)) {
3763		removeElement(line, i);
3764		break;
3765		}
3766		}
3767		/* handle removing LT_ROOT line too */
3768		if (useRoot && !strncmp(*arg, "root=", 5)) {
3769		rootLine = getLineByType(LT_ROOT, entry->lines);
3770		if (rootLine)
3771		removeLine(entry, rootLine);
3772		}
3773		}
3774
3775	if (line->numElements == 1) {	if (line->numElements == 1) {
3776	/* 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
3777	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3778	removeLine(entry, line);	removeLine(entry, line);
3779		}
3780	}	}
	}
3781
3782	free(usedArgs);	free(newArgs);
3783	free(newArgs);	free(oldArgs);
	free(oldArgs);
3784
3785	return 0;	return 0;
3786	}	}
3787
3788	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3789	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3790	const char * removeArgs,	const char *removeArgs,
3791	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3792	int rc = 0;	{
3793		int rc = 0;
3794	if (!image) return rc;
3795		if (!image)
3796	/* update the main args first... */	return rc;
3797	if (addArgs || removeArgs)
3798	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3799	if (rc) return rc;	if (addArgs || removeArgs)
3800		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3801	/* and now any multiboot args */	0);
3802	if (addMBArgs || removeMBArgs)	if (rc)
3803	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3804	return rc;
3805	}	/* and now any multiboot args */
3806		if (addMBArgs || removeMBArgs)
3807	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3808	int fd;	removeMBArgs, 1);
3809	unsigned char bootSect[512];	return rc;
3810	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3811
3812	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3813	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3814	device, strerror(errno));	const char *title)
3815	return 1;	{
3816	}	struct singleEntry *entry;
3817	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3818		int index = 0;
3819
3820		if (!image)
3821		return 0;
3822
3823		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3824		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3825		if (!kernelLine)
3826		continue;
3827
3828		/* if title is supplied, the entry's title must match it. */
3829		if (title) {
3830		char *linetitle;
3831
3832		line =
3833		getLineByType(LT_TITLE | LT_MENUENTRY,
3834		entry->lines);
3835		if (!line)
3836		continue;
3837
3838		linetitle = extractTitle(cfg, line);
3839		if (!linetitle)
3840		continue;
3841		if (strcmp(title, linetitle)) {
3842		free(linetitle);
3843		continue;
3844		}
3845		free(linetitle);
3846		}
3847
3848	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3849	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3850	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3851		initrd += prefixLen;
3852		}
3853		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3854		if (endLine)
3855		removeLine(entry, endLine);
3856		line =
3857		addLine(entry, cfg->cfi,
3858		preferredLineType(LT_MBMODULE, cfg->cfi),
3859		kernelLine->indent, initrd);
3860		if (!line)
3861		return 1;
3862		if (endLine) {
3863		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3864		if (!line)
3865		return 1;
3866		}
3867
3868	if (boot[1] == 0xeb) {	break;
3869	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;
	}
3870
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3871	return 0;	return 0;
3872		}
3873
3874		int updateInitrd(struct grubConfig *cfg, const char *image,
3875		const char *prefix, const char *initrd, const char *title)
3876		{
3877		struct singleEntry *entry;
3878		struct singleLine *line, *kernelLine, *endLine = NULL;
3879		int index = 0;
3880
3881		if (!image)
3882		return 0;
3883
3884		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3885		kernelLine =
3886		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3887		entry->lines);
3888		if (!kernelLine)
3889		continue;
3890
3891		/* if title is supplied, the entry's title must match it. */
3892		if (title) {
3893		char *linetitle;
3894
3895		line =
3896		getLineByType(LT_TITLE | LT_MENUENTRY,
3897		entry->lines);
3898		if (!line)
3899		continue;
3900
3901		linetitle = extractTitle(cfg, line);
3902		if (!linetitle)
3903		continue;
3904		if (strcmp(title, linetitle)) {
3905		free(linetitle);
3906		continue;
3907		}
3908		free(linetitle);
3909		}
3910
3911		line =
3912		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3913		entry->lines);
3914		if (line)
3915		removeLine(entry, line);
3916		if (prefix) {
3917		int prefixLen = strlen(prefix);
3918		if (!strncmp(initrd, prefix, prefixLen))
3919		initrd += prefixLen;
3920		}
3921		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3922		if (endLine)
3923		removeLine(entry, endLine);
3924		enum lineType_e lt;
3925		switch (kernelLine->type) {
3926		case LT_KERNEL:
3927		lt = LT_INITRD;
3928		break;
3929		case LT_KERNEL_EFI:
3930		lt = LT_INITRD_EFI;
3931		break;
3932		case LT_KERNEL_16:
3933		lt = LT_INITRD_16;
3934		break;
3935		default:
3936		lt = preferredLineType(LT_INITRD, cfg->cfi);
3937		}
3938		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3939		if (!line)
3940		return 1;
3941		if (endLine) {
3942		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3943		if (!line)
3944		return 1;
3945		}
3946
3947	return 2;	break;
3948		}
3949
3950		return 0;
3951	}	}
3952
3953	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3954	int fd;	{
3955	char buf[65536];	int fd;
3956	char * end;	unsigned char bootSect[512];
3957	char * chptr;	int offset;
3958	char * chptr2;
3959	int rc;	fd = open(device, O_RDONLY);
3960		if (fd < 0) {
3961		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3962		device, strerror(errno));
3963		return 1;
3964		}
3965
3966	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (read(fd, bootSect, 512) != 512) {
3967	*raw* devices listed in there */	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3968		device, strerror(errno));
3969		return 1;
3970		}
3971		close(fd);
3972
3973		/* first three bytes should match, a jmp short should be in there */
3974		if (memcmp(boot, bootSect, 3))
3975		return 0;
3976
3977		if (boot[1] == JMP_SHORT_OPCODE) {
3978		offset = boot[2] + 2;
3979		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3980		offset = (boot[3] << 8) + boot[2] + 2;
3981		} else if (boot[0] == JMP_SHORT_OPCODE) {
3982		offset = boot[1] + 2;
3983		/*
3984		* it looks like grub, when copying stage1 into the mbr,
3985		* patches stage1 right after the JMP location, replacing
3986		* other instructions such as JMPs for NOOPs. So, relax the
3987		* check a little bit by skipping those different bytes.
3988		*/
3989		if ((bootSect[offset + 1] == NOOP_OPCODE)
3990		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3991		offset = offset + 3;
3992		}
3993		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3994		offset = (boot[2] << 8) + boot[1] + 2;
3995		} else {
3996		return 0;
3997		}
3998
3999	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4000	mdDev += 5;	return 0;
4001
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
4002	return 2;	return 2;
4003	}	}
4004
4005	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4006	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
4007	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
4008	strerror(errno));	char buf[65536];
4009		char *end;
4010		char *chptr;
4011		char *chptr2;
4012		int rc;
4013
4014		/* it's on raid; we need to parse /proc/mdstat and check all of the
4015		*raw* devices listed in there */
4016
4017		if (!strncmp(mdDev, "/dev/", 5))
4018		mdDev += 5;
4019
4020		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4021		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4022		strerror(errno));
4023		return 2;
4024		}
4025
4026		rc = read(fd, buf, sizeof(buf) - 1);
4027		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4028		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4029		strerror(errno));
4030		close(fd);
4031		return 2;
4032		}
4033	close(fd);	close(fd);
4034	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
4035
4036	chptr = buf;	chptr = buf;
4037	while (*chptr) {	while (*chptr) {
4038	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
4039	if (!end) break;	if (!end)
4040	*end = '\0';	break;
4041		*end = '\0';
4042
4043		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4044		chptr[strlen(mdDev)] == ' ') {
4045
4046		/* found the device */
4047		while (*chptr && *chptr != ':')
4048		chptr++;
4049		chptr++;
4050		while (*chptr && isspace(*chptr))
4051		chptr++;
4052
4053		/* skip the "active" bit */
4054		while (*chptr && !isspace(*chptr))
4055		chptr++;
4056		while (*chptr && isspace(*chptr))
4057		chptr++;
4058
4059		/* skip the raid level */
4060		while (*chptr && !isspace(*chptr))
4061		chptr++;
4062		while (*chptr && isspace(*chptr))
4063		chptr++;
4064
4065		/* everything else is partition stuff */
4066		while (*chptr) {
4067		chptr2 = chptr;
4068		while (*chptr2 && *chptr2 != '[')
4069		chptr2++;
4070		if (!*chptr2)
4071		break;
4072
4073		/* yank off the numbers at the end */
4074		chptr2--;
4075		while (isdigit(*chptr2) && chptr2 > chptr)
4076		chptr2--;
4077		chptr2++;
4078		*chptr2 = '\0';
4079
4080		/* Better, now we need the /dev/ back. We're
4081		* done with everything before this point, so
4082		* we can just put the /dev/ part there.
4083		* There will always be room. */
4084		memcpy(chptr - 5, "/dev/", 5);
4085		rc = checkDeviceBootloader(chptr - 5, boot);
4086		if (rc != 2) {
4087		return rc;
4088		}
4089
4090		chptr = chptr2 + 1;
4091		/* skip the [11] bit */
4092		while (*chptr && !isspace(*chptr))
4093		chptr++;
4094		/* and move to the next one */
4095		while (*chptr && isspace(*chptr))
4096		chptr++;
4097		}
4098
4099	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
4100	chptr[strlen(mdDev)] == ' ') {	return 2;
4101		}
4102
4103	/* found the device */	chptr = end + 1;
4104	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++;
	}
4105
4106	/*  we're good to go */	fprintf(stderr,
4107	return 2;	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4108		mdDev);
4109		return 0;
4110		}
4111
4112		int checkForLilo(struct grubConfig *config)
4113		{
4114		int fd;
4115		unsigned char boot[512];
4116		struct singleLine *line;
4117
4118		for (line = config->theLines; line; line = line->next)
4119		if (line->type == LT_BOOT)
4120		break;
4121
4122		if (!line) {
4123		fprintf(stderr,
4124		_
4125		("grubby: no boot line found in lilo configuration\n"));
4126		return 1;
4127	}	}
4128
4129	chptr = end + 1;	if (line->numElements != 2)
4130	}	return 1;
4131
4132	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4133	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4134	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4135	return 0;	"/boot/boot.b", strerror(errno));
4136	}	return 1;
4137		}
4138
4139	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4140	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4141	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4142	struct singleLine * line;	return 1;
4143		}
4144	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;
	}
4145
4146	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4147		return checkLiloOnRaid(line->elements[1].item, boot);
4148
4149	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4150	if (fd < 0) {	}
4151	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4152	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4153	return 1;	{
4154	}	if (!access("/etc/grub.d/", R_OK))
4155		return 2;
4156
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4157	return 1;	return 1;
4158	}	}
4159	close(fd);
4160		int checkForGrub(struct grubConfig *config)
4161		{
4162		int fd;
4163		unsigned char bootSect[512];
4164		char *boot;
4165		int onSuse = isSuseSystem();
4166
4167		if (onSuse) {
4168		if (parseSuseGrubConf(NULL, &boot))
4169		return 0;
4170		} else {
4171		if (parseSysconfigGrub(NULL, &boot))
4172		return 0;
4173		}
4174
4175		/* assume grub is not installed -- not an error condition */
4176		if (!boot)
4177		return 0;
4178
4179		fd = open("/boot/grub/stage1", O_RDONLY);
4180		if (fd < 0)
4181		/* this doesn't exist if grub hasn't been installed */
4182		return 0;
4183
4184		if (read(fd, bootSect, 512) != 512) {
4185		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4186		"/boot/grub/stage1", strerror(errno));
4187		close(fd);
4188		return 1;
4189		}
4190		close(fd);
4191
4192	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* The more elaborate checks do not work on SuSE. The checks done
4193	return checkLiloOnRaid(line->elements[1].item, boot);	* seem to be reasonble (at least for now), so just return success
4194		*/
4195		if (onSuse)
4196		return 2;
4197
4198	return checkDeviceBootloader(line->elements[1].item, boot);	return checkDeviceBootloader(boot, bootSect);
4199	}	}
4200
4201	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4202	int fd;	{
4203	unsigned char bootSect[512];	int fd;
4204	char * boot;	unsigned char bootSect[512];
4205		char *boot;
4206		char executable[] = "/boot/extlinux/extlinux";
4207
4208		printf("entered: checkForExtLinux()\n");
4209
4210		if (parseSysconfigGrub(NULL, &boot))
4211		return 0;
4212
4213		/* assume grub is not installed -- not an error condition */
4214		if (!boot)
4215		return 0;
4216
4217		fd = open(executable, O_RDONLY);
4218		if (fd < 0)
4219		/* this doesn't exist if grub hasn't been installed */
4220		return 0;
4221
4222		if (read(fd, bootSect, 512) != 512) {
4223		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4224		executable, strerror(errno));
4225		return 1;
4226		}
4227		close(fd);
4228
4229	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4230	return 0;	}
4231
4232	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4233	if (!boot)	{
4234	return 0;	/*
4235		* This is a simplistic check that we consider good enough for own puporses
4236		*
4237		* If we were to properly check if yaboot is *installed* we'd need to:
4238		* 1) get the system boot device (LT_BOOT)
4239		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4240		*    the content on the boot device
4241		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4242		* 4) check again if binary and boot device contents match
4243		*/
4244		if (!access("/etc/yaboot.conf", R_OK))
4245		return 2;
4246
4247	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4248	if (fd < 0)	}
4249	/* this doesn't exist if grub hasn't been installed */
4250	return 0;	int checkForElilo(struct grubConfig *config)
4251		{
4252		if (!access("/etc/elilo.conf", R_OK))
4253		return 2;
4254
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4255	return 1;	return 1;
4256	}	}
	close(fd);
4257
4258	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4259		{
4260		char *idx, *rootspec = NULL;
4261
4262		if (*str == '(') {
4263		idx = rootspec = strdup(str);
4264		while (*idx && (*idx != ')') && (!isspace(*idx)))
4265		idx++;
4266		*(++idx) = '\0';
4267		}
4268		return rootspec;
4269	}	}
4270
4271	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4272	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4273		const char *newKernelInitrd,
4274		const char **extraInitrds, int extraInitrdCount)
4275		{
4276		char *initrdVal, *end;
4277		int i;
4278		size_t totalSize;
4279		size_t prefixLen;
4280		char separatorChar;
4281
4282		prefixLen = strlen(prefix);
4283		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4284
4285		for (i = 0; i < extraInitrdCount; i++) {
4286		totalSize += sizeof(separatorChar);
4287		totalSize += strlen(extraInitrds[i]) - prefixLen;
4288		}
4289
4290		initrdVal = end = malloc(totalSize);
4291
4292		end = stpcpy(end, newKernelInitrd + prefixLen);
4293
4294		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4295		for (i = 0; i < extraInitrdCount; i++) {
4296		const char *extraInitrd;
4297		int j;
4298
4299		extraInitrd = extraInitrds[i] + prefixLen;
4300		/* Don't add entries that are already there */
4301		if (tmplLine != NULL) {
4302		for (j = 2; j < tmplLine->numElements; j++)
4303		if (strcmp
4304		(extraInitrd,
4305		tmplLine->elements[j].item) == 0)
4306		break;
4307
4308	if (*str == '(') {	if (j != tmplLine->numElements)
4309	idx = rootspec = strdup(str);	continue;
4310	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4311	*(++idx) = '\0';
4312	}	*end++ = separatorChar;
4313	return rootspec;	end = stpcpy(end, extraInitrd);
4314		}
4315
4316		return initrdVal;
4317	}	}
4318
4319	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4320	const char * prefix,	const char *prefix,
4321	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4322	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4323	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4324	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4325	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4326	int needs;	{
4327	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4328	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4329	char * chptr;	int needs;
4330	int i;	char *indexs;
4331	enum lineType_e type;	char *chptr;
4332		int rc;
4333	if (!newKernelPath) return 0;
4334		if (!newKernelPath)
4335	/* if the newKernelTitle is too long silently munge it into something	return 0;
4336	* we can live with. truncating is first check, then we'll just mess with
4337	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4338	if (config->cfi->maxTitleLength &&	if (rc < 0)
4339		return 1;
4340
4341		/* if the newKernelTitle is too long silently munge it into something
4342		* we can live with. truncating is first check, then we'll just mess with
4343		* it until it looks better */
4344		if (config->cfi->maxTitleLength &&
4345	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4346	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4347	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4348	int i = 1;	int i = 1;
4349
4350		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4351		newKernelTitle);
4352		while (findEntryByPath(config, buf, NULL, NULL)) {
4353		sprintf(numBuf, "%d", i++);
4354		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4355		}
4356
4357	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);
4358	}	}
4359
4360	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4361	}	new->skip = 0;
4362		new->multiboot = 0;
4363		new->lines = NULL;
4364		entry = config->entries;
4365		for (unsigned int i = 0; i < newIndex; i++) {
4366		if (!entry)
4367		break;
4368		prev = entry;
4369		entry = entry->next;
4370		}
4371		new->next = entry;
4372
4373	new = malloc(sizeof(*new));	if (prev)
4374	new->skip = 0;	prev->next = new;
4375	new->multiboot = 0;	else
4376	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;
	}
4377
4378	if (template) {	/* copy/update from the template */
4379	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4380	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4381	if (tmplLine->numElements)	needs |= NEED_INITRD;
4382	indent = tmplLine->indent;	if (newMBKernel) {
4383		needs |= NEED_MB;
4384	/* skip comments */	new->multiboot = 1;
4385	chptr = tmplLine->indent;	}
4386	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4387	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4388
4389	/* we don't need an initrd here */	if (template) {
4390	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4391		masterLine && (tmplLine = lineDup(masterLine));
4392	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4393	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4394	struct singleLine *l;	tmplLine->type);
4395	needs &= ~ KERNEL_MB;
4396		/* skip comments */
4397	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4398	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4399	newMBKernel + strlen(prefix));	chptr++;
4400		if (*chptr == '#')
4401	tmplLine = lastLine;	continue;
4402	if (!new->lines) {
4403	new->lines = l;	if (iskernel(tmplLine->type)
4404	} else {	&& tmplLine->numElements >= 2) {
4405	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4406	newLine = l;	/* it's not a multiboot template and
4407	}	* this is the kernel line.  Try to
4408	continue;	* be intelligent about inserting the
4409	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4410	template->multiboot && !new->multiboot) {	*/
4411	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4412	}	/* insert the hypervisor first */
4413		newLine =
4414	if (!new->lines) {	addLine(new, config->cfi,
4415	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4416	new->lines = newLine;	tmplLine->indent,
4417	} else {	newMBKernel +
4418	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4419	newLine = newLine->next;	/* set up for adding the
4420	}	* kernel line */
4421		free(tmplLine->indent);
4422		tmplLine->indent =
4423	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4424	newLine->next = NULL;	secondaryIndent);
4425	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4426	newLine->numElements = tmplLine->numElements;	}
4427	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4428	newLine->numElements);	/* use addLineTmpl to
4429	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4430	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4431	newLine->elements[i].indent =	* call addLine.
4432	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4433	}	* making some changes to the
4434		* template such as the
4435	lastLine = tmplLine;	* indent change above and
4436	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4437	char * repl;	*/
4438	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4439	needs &= ~KERNEL_KERNEL;	getKeywordByType
4440	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4441	} else {	if (mbm_kw) {
4442	needs &= ~KERNEL_MB;	tmplLine->type =
4443	repl = newMBKernel;	LT_MBMODULE;
4444	}	free(tmplLine->
4445	if (new->multiboot && !template->multiboot) {	elements[0].item);
4446	free(newLine->elements[0].item);	tmplLine->elements[0].
4447	newLine->elements[0].item = strdup("module");	item =
4448	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4449	}	}
4450	free(newLine->elements[1].item);	newLine =
4451	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4452	if (rootspec != NULL) {	newLine,
4453	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4454	rootspec,	strlen(prefix),
4455	repl +	config->cfi);
4456	strlen(prefix));	needs &= ~NEED_KERNEL;
4457	} else {	}
4458	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4459	strlen(prefix));	newLine =
4460	}	addLine(new, config->cfi,
4461	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4462	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4463	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4464	if (!new->multiboot && template->multiboot) {	newMBKernel +
4465	free(newLine->elements[0].item);	strlen(prefix));
4466	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4467	newLine->type = LT_KERNEL;	}
4468	}	} else if (needs & NEED_KERNEL) {
4469	free(newLine->elements[1].item);	newLine =
4470	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4471	if (rootspec != NULL) {	newKernelPath +
4472	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4473	rootspec,	config->cfi);
4474	newKernelPath +	needs &= ~NEED_KERNEL;
4475	strlen(prefix));	}
4476	} else {
4477	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4478	strlen(prefix));	tmplLine->numElements >= 2) {
4479	}	if (needs & NEED_MB) {
4480	} else if (tmplLine->type == LT_INITRD &&	newLine =
4481	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4482	needs &= ~KERNEL_INITRD;	newMBKernel +
4483	free(newLine->elements[1].item);	strlen(prefix),
4484	if (new->multiboot && !template->multiboot) {	config->cfi);
4485	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4486	newLine->elements[0].item = strdup("module");	}
4487	newLine->type = LT_MBMODULE;
4488	}	} else if (tmplLine->type == LT_MBMODULE &&
4489	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4490	if (rootspec != NULL) {	if (new->multiboot) {
4491	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4492	rootspec,	newLine =
4493	newKernelInitrd +	addLineTmpl(new, tmplLine,
4494	strlen(prefix));	newLine,
4495	} else {	newKernelPath +
4496	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4497	strlen(prefix));	config->cfi);
4498	}	needs &= ~NEED_KERNEL;
4499	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4500	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4501	needs &= ~KERNEL_INITRD;	char *initrdVal;
4502	if (!new->multiboot && template->multiboot) {	initrdVal =
4503	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4504	newLine->elements[0].item = strdup("initrd");	tmplLine,
4505	newLine->type = LT_INITRD;	newKernelInitrd,
4506	}	extraInitrds,
4507	free(newLine->elements[1].item);	extraInitrdCount);
4508	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4509	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4510	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4511	rootspec,	initrdVal,
4512	newKernelInitrd +	config->cfi);
4513	strlen(prefix));	free(initrdVal);
4514	} else {	needs &= ~NEED_INITRD;
4515	newLine->elements[1].item = strdup(newKernelInitrd +	}
4516	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4517	}	/* template is multi but new is not,
4518	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4519	tmplLine->numElements >= 2) {	* module slot
4520	needs &= ~KERNEL_TITLE;	*/
4521		tmplLine->type =
4522	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4523	free(newLine->elements[i].item);	config->cfi);
4524	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4525	}	tmplLine->elements[0].item =
4526		strdup(getKeywordByType
4527	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4528	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4529	newLine->numElements = 2;	newLine =
4530	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4531	config->cfi->titleBracketed &&	newKernelPath +
4532	tmplLine->numElements == 1) {	strlen(prefix),
4533	needs &= ~KERNEL_TITLE;	config->cfi);
4534	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4535	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4536	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4537	newLine->numElements);	/* template is multi but new is not,
4538		* insert the initrd in the second
4539	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4540	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4541	newLine->elements[0].indent = strdup("");	tmplLine->type =
4542	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4543	}	config->cfi);
4544	}	free(tmplLine->elements[0].item);
4545	} else {	tmplLine->elements[0].item =
4546	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4547	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4548	break;	config->cfi)->key);
4549	}	initrdVal =
4550		getInitrdVal(config, prefix,
4551		tmplLine,
4552		newKernelInitrd,
4553		extraInitrds,
4554		extraInitrdCount);
4555		newLine =
4556		addLineTmpl(new, tmplLine, newLine,
4557		initrdVal, config->cfi);
4558		free(initrdVal);
4559		needs &= ~NEED_INITRD;
4560		}
4561
4562		} else if (isinitrd(tmplLine->type)
4563		&& tmplLine->numElements >= 2) {
4564		if (needs & NEED_INITRD && new->multiboot
4565		&& !template->multiboot
4566		&& config->cfi->mbInitRdIsModule) {
4567		/* make sure we don't insert the
4568		* module initrd before the module
4569		* kernel... if we don't do it here,
4570		* it will be inserted following the
4571		* template.
4572		*/
4573		if (!needs & NEED_KERNEL) {
4574		char *initrdVal;
4575
4576		initrdVal =
4577		getInitrdVal(config, prefix,
4578		tmplLine,
4579		newKernelInitrd,
4580		extraInitrds,
4581		extraInitrdCount);
4582		newLine =
4583		addLine(new, config->cfi,
4584		LT_MBMODULE,
4585		config->
4586		secondaryIndent,
4587		initrdVal);
4588		free(initrdVal);
4589		needs &= ~NEED_INITRD;
4590		}
4591		} else if (needs & NEED_INITRD) {
4592		char *initrdVal;
4593		initrdVal =
4594		getInitrdVal(config, prefix,
4595		tmplLine,
4596		newKernelInitrd,
4597		extraInitrds,
4598		extraInitrdCount);
4599		newLine =
4600		addLineTmpl(new, tmplLine, newLine,
4601		initrdVal, config->cfi);
4602		free(initrdVal);
4603		needs &= ~NEED_INITRD;
4604		}
4605
4606		} else if (tmplLine->type == LT_MENUENTRY &&
4607		(needs & NEED_TITLE)) {
4608		requote(tmplLine, config->cfi);
4609		char *nkt = malloc(strlen(newKernelTitle) + 3);
4610		strcpy(nkt, "'");
4611		strcat(nkt, newKernelTitle);
4612		strcat(nkt, "'");
4613		newLine =
4614		addLineTmpl(new, tmplLine, newLine, nkt,
4615		config->cfi);
4616		free(nkt);
4617		needs &= ~NEED_TITLE;
4618		} else if (tmplLine->type == LT_TITLE &&
4619		(needs & NEED_TITLE)) {
4620		if (tmplLine->numElements >= 2) {
4621		newLine =
4622		addLineTmpl(new, tmplLine, newLine,
4623		newKernelTitle,
4624		config->cfi);
4625		needs &= ~NEED_TITLE;
4626		} else if (tmplLine->numElements == 1 &&
4627		config->cfi->titleBracketed) {
4628		/* addLineTmpl doesn't handle
4629		* titleBracketed */
4630		newLine =
4631		addLine(new, config->cfi, LT_TITLE,
4632		tmplLine->indent,
4633		newKernelTitle);
4634		needs &= ~NEED_TITLE;
4635		}
4636		} else if (tmplLine->type == LT_ECHO) {
4637		requote(tmplLine, config->cfi);
4638		static const char *prefix = "'Loading ";
4639		if (tmplLine->numElements > 1 &&
4640		strstr(tmplLine->elements[1].item, prefix)
4641		&& masterLine->next
4642		&& iskernel(masterLine->next->type)) {
4643		char *newTitle =
4644		malloc(strlen(prefix) +
4645		strlen(newKernelTitle) + 2);
4646
4647		strcpy(newTitle, prefix);
4648		strcat(newTitle, newKernelTitle);
4649		strcat(newTitle, "'");
4650		newLine =
4651		addLine(new, config->cfi, LT_ECHO,
4652		tmplLine->indent, newTitle);
4653		free(newTitle);
4654		} else {
4655		/* pass through other lines from the
4656		* template */
4657		newLine =
4658		addLineTmpl(new, tmplLine, newLine,
4659		NULL, config->cfi);
4660		}
4661		} else if (tmplLine->type == LT_DEVTREE &&
4662		tmplLine->numElements == 2
4663		&& newDevTreePath) {
4664		newLine =
4665		addLineTmpl(new, tmplLine, newLine,
4666		newDevTreePath + strlen(prefix),
4667		config->cfi);
4668		needs &= ~NEED_DEVTREE;
4669		} else if (tmplLine->type == LT_ENTRY_END
4670		&& needs & NEED_DEVTREE) {
4671		const char *ndtp = newDevTreePath;
4672		if (!strncmp
4673		(newDevTreePath, prefix, strlen(prefix)))
4674		ndtp += strlen(prefix);
4675		newLine = addLine(new, config->cfi, LT_DEVTREE,
4676		config->secondaryIndent,
4677		ndtp);
4678		needs &= ~NEED_DEVTREE;
4679		newLine =
4680		addLineTmpl(new, tmplLine, newLine, NULL,
4681		config->cfi);
4682		} else {
4683		/* pass through other lines from the template */
4684		newLine =
4685		addLineTmpl(new, tmplLine, newLine, NULL,
4686		config->cfi);
4687		}
4688		}
4689
4690	switch (config->cfi->keywords[i].type) {	} else {
4691	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4692	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4693	type = LT_KERNEL; break;	*/
4694	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4695	type = LT_TITLE; break;	case LT_KERNEL:
4696	default:	case LT_KERNEL_EFI:
4697	/* zipl strikes again */	case LT_KERNEL_16:
4698	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4699	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4700	chptr = newKernelTitle;	} else {
4701	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4702	break;	preferredLineType(LT_KERNEL,
4703	} else {	config->
4704	abort();	cfi),
4705	}	config->primaryIndent,
4706	}	newKernelPath +
4707		strlen(prefix));
4708		needs &= ~NEED_KERNEL;
4709		break;
4710		}
4711
4712		case LT_HYPER:
4713		newLine = addLine(new, config->cfi, LT_HYPER,
4714		config->primaryIndent,
4715		newMBKernel + strlen(prefix));
4716		needs &= ~NEED_MB;
4717		break;
4718
4719		case LT_MENUENTRY:{
4720		char *nkt = malloc(strlen(newKernelTitle) + 3);
4721		strcpy(nkt, "'");
4722		strcat(nkt, newKernelTitle);
4723		strcat(nkt, "'");
4724		newLine =
4725		addLine(new, config->cfi, LT_MENUENTRY,
4726		config->primaryIndent, nkt);
4727		free(nkt);
4728		needs &= ~NEED_TITLE;
4729		needs |= NEED_END;
4730		break;
4731		}
4732		case LT_TITLE:
4733		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4734		char *templabel;
4735		int x = 0, y = 0;
4736
4737		templabel = strdup(newKernelTitle);
4738		while (templabel[x]) {
4739		if (templabel[x] == ' ') {
4740		y = x;
4741		while (templabel[y]) {
4742		templabel[y] =
4743		templabel[y + 1];
4744		y++;
4745		}
4746		}
4747		x++;
4748		}
4749		newLine = addLine(new, config->cfi, LT_TITLE,
4750		config->primaryIndent,
4751		templabel);
4752		free(templabel);
4753		} else {
4754		newLine = addLine(new, config->cfi, LT_TITLE,
4755		config->primaryIndent,
4756		newKernelTitle);
4757		}
4758		needs &= ~NEED_TITLE;
4759		break;
4760
4761	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	default:
4762	new->lines = newLine;	abort();
4763	}	}
4764		}
	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));
	}
4765
4766	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	struct singleLine *endLine = NULL;
4767	newMBKernelArgs, NULL)) return 1;	endLine = getLineByType(LT_ENTRY_END, new->lines);
4768		if (endLine) {
4769		removeLine(new, endLine);
4770		needs |= NEED_END;
4771		}
4772
4773		/* add the remainder of the lines, i.e. those that either
4774		* weren't present in the template, or in the case of no template,
4775		* all the lines following the entryStart.
4776		*/
4777		if (needs & NEED_TITLE) {
4778		newLine = addLine(new, config->cfi, LT_TITLE,
4779		config->secondaryIndent, newKernelTitle);
4780		needs &= ~NEED_TITLE;
4781		}
4782		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4783		newLine = addLine(new, config->cfi, LT_HYPER,
4784		config->secondaryIndent,
4785		newMBKernel + strlen(prefix));
4786		needs &= ~NEED_MB;
4787		}
4788		if (needs & NEED_KERNEL) {
4789		newLine = addLine(new, config->cfi,
4790		(new->multiboot
4791		&& getKeywordByType(LT_MBMODULE,
4792		config->cfi))
4793		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4794		config->
4795		cfi),
4796		config->secondaryIndent,
4797		newKernelPath + strlen(prefix));
4798		needs &= ~NEED_KERNEL;
4799		}
4800		if (needs & NEED_MB) {
4801		newLine = addLine(new, config->cfi, LT_HYPER,
4802		config->secondaryIndent,
4803		newMBKernel + strlen(prefix));
4804		needs &= ~NEED_MB;
4805		}
4806		if (needs & NEED_INITRD) {
4807		char *initrdVal;
4808		initrdVal =
4809		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4810		extraInitrds, extraInitrdCount);
4811		newLine =
4812		addLine(new, config->cfi,
4813		(new->multiboot
4814		&& getKeywordByType(LT_MBMODULE, config->cfi))
4815		? LT_MBMODULE : preferredLineType(LT_INITRD,
4816		config->cfi),
4817		config->secondaryIndent, initrdVal);
4818		free(initrdVal);
4819		needs &= ~NEED_INITRD;
4820		}
4821		if (needs & NEED_DEVTREE) {
4822		newLine = addLine(new, config->cfi, LT_DEVTREE,
4823		config->secondaryIndent, newDevTreePath);
4824		needs &= ~NEED_DEVTREE;
4825		}
4826
4827		/* NEEDS_END must be last on bootloaders that need it... */
4828		if (needs & NEED_END) {
4829		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4830		config->secondaryIndent, NULL);
4831		needs &= ~NEED_END;
4832		}
4833
4834		if (needs) {
4835		printf(_("grubby: needs=%d, aborting\n"), needs);
4836		abort();
4837		}
4838
4839		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4840		newMBKernelArgs, NULL)) {
4841		config->isModified = 1;
4842		return 1;
4843		}
4844
4845	return 0;	return 0;
4846	}	}
4847
4848	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4849	poptContext optCon;	{
4850	char * grubConfig = NULL;	poptContext optCon;
4851	char * outputFile = NULL;	const char *grubConfig = NULL;
4852	int arg = 0;	char *outputFile = NULL;
4853	int flags = 0;	int arg = 0;
4854	int badImageOkay = 0;	int flags = 0;
4855	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4856	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4857	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4858	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4859	char * newKernelPath = NULL;	int configureExtLinux = 0;
4860	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4861	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4862	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4863	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4864	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4865	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4866	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4867	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4868	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4869	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4870	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4871	char * removeArgs = NULL;	int newIndex = 0;
4872	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4873	const char * chptr = NULL;	char *removeMBKernel = NULL;
4874	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4875	struct grubConfig * config;	char *defaultKernel = NULL;
4876	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4877	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4878	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4879	struct poptOption options[] = {	char *envPath = NULL;
4880	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4881	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4882	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4883	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4884	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4885	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4886	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4887	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4888	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4889	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4890	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4891	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4892	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4893	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4894	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4895	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4896	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4897	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4898	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4899		"new arguments for multiboot kernel being updated"), NULL},
4900		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4901		_
4902		("don't sanity check images in boot entries (for testing only)"),
4903		NULL},
4904		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4905		_
4906		("filesystem which contains /boot directory (for testing only)"),
4907		_("bootfs")},
4908		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4909		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4910		_("check which bootloader is installed on boot sector")},
4911	#endif	#endif
4912	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4913	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4914	_("path") },	_("path")},
4915	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4916	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4917	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4918	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4919	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4920	"template"), NULL },	"template"), NULL},
4921	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4922	_("display the path of the default kernel") },	_("print debugging information for failures")},
4923	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4924	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4925	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4926	_("configure grub bootloader") },	_("display the index of the default kernel")},
4927	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4928	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4929	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4930	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4931	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4932	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4933	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4934	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4935	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4936	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4937	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4938	_("path") },	_("path for environment data"),
4939	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4940	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4941	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4942	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4943	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4944	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4945	_("kernel-path") },	_("configure grub2 bootloader")},
4946	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4947	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4948	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4949	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4950	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4951	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4952	_("configure silo bootloader") },	_
4953	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4954	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4955	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4956	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4957	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4958	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4959	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4960	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4961	_("configure yaboot bootloader") },	_("path")},
4962	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4963	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4964	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4965	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4966	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4967		_("remove all entries for the specified kernel"),
4968	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4969	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4970		_("remove all entries for the specified multiboot kernel"),
4971	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4972	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4973	case 'v':	_("make the first entry referencing the specified kernel "
4974	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
4975	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4976	break;	_("make the given entry index the default entry"),
4977		_("entry-index")},
4978		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4979		_("use the given index when creating a new entry"),
4980		_("entry-index")},
4981		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4982		_("configure silo bootloader")},
4983		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4984		_("title to use for the new kernel entry"), _("entry-title")},
4985		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4986		_("updated information for the specified kernel"),
4987		_("kernel-path")},
4988		{"version", 'v', 0, NULL, 'v',
4989		_("print the version of this program and exit"), NULL},
4990		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4991		_("configure yaboot bootloader")},
4992		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4993		_("configure zipl bootloader")},
4994		POPT_AUTOHELP {0, 0, 0, 0, 0}
4995		};
4996
4997		useextlinuxmenu = 0;
4998
4999		int i = 0;
5000		for (int j = 1; j < argc; j++)
5001		i += strlen(argv[j]) + 1;
5002		saved_command_line = malloc(i);
5003		if (!saved_command_line) {
5004		fprintf(stderr, "grubby: %m\n");
5005		exit(1);
5006		}
5007		saved_command_line[0] = '\0';
5008		for (int j = 1; j < argc; j++) {
5009		strcat(saved_command_line, argv[j]);
5010		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5011		}
5012
5013		optCon = poptGetContext("grubby", argc, argv, options, 0);
5014		poptReadDefaultConfig(optCon, 1);
5015
5016		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5017		switch (arg) {
5018		case 'v':
5019		printf("grubby version %s\n", VERSION);
5020		exit(0);
5021		break;
5022		case 'i':
5023		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5024		extraInitrds[extraInitrdCount++] =
5025		strdup(poptGetOptArg(optCon));
5026		} else {
5027		fprintf(stderr,
5028		_
5029		("grubby: extra initrd maximum is %d\n"),
5030		extraInitrdCount);
5031		return 1;
5032		}
5033		break;
5034		}
5035	}	}
	}
5036
5037	if (arg < -1) {	if (arg < -1) {
5038	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5039	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5040	poptStrerror(arg));	poptStrerror(arg));
5041	return 1;	return 1;
5042	}	}
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
	return 1;
	}
5043
5044	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5045	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5046	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
5047	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;
	}
5048
5049	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5050	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
5051	cfi = &eliloConfigType;	configureExtLinux) > 1) {
5052	#elif __powerpc__	fprintf(stderr,
5053	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
5054	#elif __sparc__	return 1;
5055	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
5056	#elif __s390__	fprintf(stderr,
5057	cfi = &ziplConfigType;	_
5058	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
5059	cfi = &ziplConfigtype;	return 1;
5060	#else	} else if (configureGrub2) {
5061	cfi = &grubConfigType;	cfi = &grub2ConfigType;
5062	#endif	if (envPath)
5063	}	cfi->envFile = envPath;
5064		} else if (configureLilo) {
5065		cfi = &liloConfigType;
5066		} else if (configureGrub) {
5067		cfi = &grubConfigType;
5068		} else if (configureELilo) {
5069		cfi = &eliloConfigType;
5070		} else if (configureYaboot) {
5071		cfi = &yabootConfigType;
5072		} else if (configureSilo) {
5073		cfi = &siloConfigType;
5074		} else if (configureZipl) {
5075		cfi = &ziplConfigType;
5076		} else if (configureExtLinux) {
5077		cfi = &extlinuxConfigType;
5078		useextlinuxmenu = 1;
5079		}
5080
5081		if (!cfi) {
5082		if (grub2FindConfig(&grub2ConfigType)) {
5083		cfi = &grub2ConfigType;
5084		if (envPath)
5085		cfi->envFile = envPath;
5086		} else
5087		#ifdef __ia64__
5088		cfi = &eliloConfigType;
5089		#elif __powerpc__
5090		cfi = &yabootConfigType;
5091		#elif __sparc__
5092		cfi = &siloConfigType;
5093		#elif __s390__
5094		cfi = &ziplConfigType;
5095		#elif __s390x__
5096		cfi = &ziplConfigtype;
5097		#else
5098		cfi = &grubConfigType;
5099		#endif
5100		}
5101
5102	if (!grubConfig)	if (!grubConfig) {
5103	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
5104		grubConfig = cfi->findConfig(cfi);
5105		if (!grubConfig)
5106		grubConfig = cfi->defaultConfig;
5107		}
5108
5109	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5110	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5111	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5112	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5113		|| (defaultIndex >= 0))) {
5114		fprintf(stderr,
5115		_("grubby: --bootloader-probe may not be used with "
5116	"specified option"));	"specified option"));
5117	return 1;	return 1;
5118	}	}
5119
5120	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5121	removeKernelPath)) {	removeKernelPath)) {
5122	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5123	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5124	return 1;	return 1;
5125	}	}
5126
5127	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5128	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5129	return 1;	return 1;
5130	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5131	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5132	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5133	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5134	return 1;	return 1;
5135	}	}
5136
5137	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5138	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5139	"not be used together"));	"not be used together"));
5140	return 1;	return 1;
5141	}	}
5142
5143	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5144	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5145		"may not be used together\n"));
5146		return 1;
5147		} else if (defaultKernel && removeKernelPath &&
5148		!strcmp(defaultKernel, removeKernelPath)) {
5149		fprintf(stderr,
5150		_("grubby: cannot make removed kernel the default\n"));
5151		return 1;
5152		} else if (defaultKernel && newKernelPath &&
5153		!strcmp(defaultKernel, newKernelPath)) {
5154		makeDefault = 1;
5155		defaultKernel = NULL;
5156		} else if (defaultKernel && (defaultIndex >= 0)) {
5157		fprintf(stderr,
5158		_("grubby: --set-default and --set-default-index "
5159	"may not be used together\n"));	"may not be used together\n"));
5160	return 1;	return 1;
5161	} 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;
	}
5162
5163	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5164	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5165	"is used\n"));	_("grubby: output file must be specified if stdin "
5166	return 1;	"is used\n"));
5167	}	return 1;
5168		}
5169
5170	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5171	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5172	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5173	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5174	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5175	}	return 1;
5176		}
5177
5178		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5179
5180	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	if (cfi->needsBootPrefix) {
5181		if (!bootPrefix) {
5182		bootPrefix = findBootPrefix();
5183		if (!bootPrefix)
5184		return 1;
5185		} else {
5186		/* this shouldn't end with a / */
5187		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5188		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5189		}
5190		} else {
5191		bootPrefix = "";
5192		}
5193
5194	if (cfi->needsBootPrefix) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5195	if (!bootPrefix) {	fprintf(stderr,
5196	bootPrefix = findBootPrefix();	_("grubby: %s doesn't allow multiple initrds\n"),
5197	if (!bootPrefix) return 1;	cfi->defaultConfig);
5198	} else {	return 1;
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5199	}	}
	} else {
	bootPrefix = "";
	}
5200
5201	if (bootloaderProbe) {	if (bootloaderProbe) {
5202	int lrc = 0, grc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5203	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5204
5205	if (!access(grubConfigType.defaultConfig, F_OK)) {	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5206	gconfig = readConfig(grubConfigType.defaultConfig, &grubConfigType);	if (grub2config) {
5207	if (!gconfig)	gconfig = readConfig(grub2config, &grub2ConfigType);
5208	grc = 1;	if (!gconfig)
5209	else	gr2c = 1;
5210	grc = checkForGrub(gconfig);	else
5211	}	gr2c = checkForGrub2(gconfig);
5212		}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
5213
5214	if (lrc == 1 || grc == 1) return 1;	const char *grubconfig = grubFindConfig(&grubConfigType);
5215		if (!access(grubconfig, F_OK)) {
5216		gconfig = readConfig(grubconfig, &grubConfigType);
5217		if (!gconfig)
5218		grc = 1;
5219		else
5220		grc = checkForGrub(gconfig);
5221		}
5222
5223	if (lrc == 2) printf("lilo\n");	if (!access(liloConfigType.defaultConfig, F_OK)) {
5224	if (grc == 2) printf("grub\n");	lconfig =
5225		readConfig(liloConfigType.defaultConfig,
5226		&liloConfigType);
5227		if (!lconfig)
5228		lrc = 1;
5229		else
5230		lrc = checkForLilo(lconfig);
5231		}
5232
5233	return 0;	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5234	}	econfig = readConfig(eliloConfigType.defaultConfig,
5235		&eliloConfigType);
5236		if (!econfig)
5237		erc = 1;
5238		else
5239		erc = checkForElilo(econfig);
5240		}
5241
5242	config = readConfig(grubConfig, cfi);	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5243	if (!config) return 1;	lconfig =
5244		readConfig(extlinuxConfigType.defaultConfig,
5245		&extlinuxConfigType);
5246		if (!lconfig)
5247		extrc = 1;
5248		else
5249		extrc = checkForExtLinux(lconfig);
5250		}
5251
5252	if (displayDefault) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5253	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5254	struct singleEntry * entry;	&yabootConfigType);
5255	char * rootspec;	if (!yconfig)
5256		yrc = 1;
5257	if (config->defaultImage == -1) return 0;	else
5258	entry = findEntryByIndex(config, config->defaultImage);	yrc = checkForYaboot(yconfig);
5259	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));
5260
5261	return 0;	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5262	} else if (kernelInfo)	|| erc == 1)
5263	return displayInfo(config, kernelInfo, bootPrefix);	return 1;
5264
5265		if (lrc == 2)
5266		printf("lilo\n");
5267		if (gr2c == 2)
5268		printf("grub2\n");
5269		if (grc == 2)
5270		printf("grub\n");
5271		if (extrc == 2)
5272		printf("extlinux\n");
5273		if (yrc == 2)
5274		printf("yaboot\n");
5275		if (erc == 2)
5276		printf("elilo\n");
5277
5278		return 0;
5279		}
5280
5281		if (grubConfig == NULL) {
5282		printf("Could not find bootloader configuration file.\n");
5283		exit(1);
5284		}
5285
5286	if (copyDefault) {	config = readConfig(grubConfig, cfi);
5287	template = findTemplate(config, bootPrefix, NULL, 0, flags);	if (!config)
5288	if (!template) return 1;	return 1;
	}
5289
5290	markRemovedImage(config, removeKernelPath, bootPrefix);	if (displayDefault) {
5291	markRemovedImage(config, removeMBKernel, bootPrefix);	struct singleLine *line;
5292	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleEntry *entry;
5293	bootPrefix, flags);	char *rootspec;
5294	setFallbackImage(config, newKernelPath != NULL);
5295	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	if (config->defaultImage == NO_DEFAULT_ENTRY)
5296	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	return 0;
5297	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5298	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5299	newMBKernel, newMBKernelArgs)) return 1;	config->defaultImage = FIRST_ENTRY_INDEX;
5300		entry = findEntryByIndex(config, config->defaultImage);
5301		if (!entry)
5302	if (numEntries(config) == 0) {	return 0;
5303	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	if (!suitableImage(entry, bootPrefix, 0, flags))
5304	"Not writing out new config.\n"));	return 0;
5305	return 1;
5306	}	line =
5307		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5308		LT_KERNEL_16, entry->lines);
5309		if (!line)
5310		return 0;
5311
5312		rootspec = getRootSpecifier(line->elements[1].item);
5313		printf("%s%s\n", bootPrefix, line->elements[1].item +
5314		((rootspec != NULL) ? strlen(rootspec) : 0));
5315
5316		return 0;
5317
5318		} else if (displayDefaultTitle) {
5319		struct singleLine *line;
5320		struct singleEntry *entry;
5321
5322		if (config->defaultImage == NO_DEFAULT_ENTRY)
5323		return 0;
5324		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5325		cfi->defaultIsSaved)
5326		config->defaultImage = FIRST_ENTRY_INDEX;
5327		entry = findEntryByIndex(config, config->defaultImage);
5328		if (!entry)
5329		return 0;
5330
5331		if (!configureGrub2) {
5332		char *title;
5333		line = getLineByType(LT_TITLE, entry->lines);
5334		if (!line)
5335		return 0;
5336		title = extractTitle(config, line);
5337		if (!title)
5338		return 0;
5339		printf("%s\n", title);
5340		free(title);
5341		} else {
5342		char *title;
5343
5344		dbgPrintf
5345		("This is GRUB2, default title is embeded in menuentry\n");
5346		line = getLineByType(LT_MENUENTRY, entry->lines);
5347		if (!line)
5348		return 0;
5349		title = grub2ExtractTitle(line);
5350		if (title)
5351		printf("%s\n", title);
5352		}
5353		return 0;
5354
5355		} else if (displayDefaultIndex) {
5356		if (config->defaultImage == NO_DEFAULT_ENTRY)
5357		return 0;
5358		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5359		cfi->defaultIsSaved)
5360		config->defaultImage = FIRST_ENTRY_INDEX;
5361		printf("%i\n", config->defaultImage);
5362		return 0;
5363
5364		} else if (kernelInfo)
5365		return displayInfo(config, kernelInfo, bootPrefix);
5366
5367		if (copyDefault) {
5368		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5369		if (!template)
5370		return 1;
5371		}
5372
5373		markRemovedImage(config, removeKernelPath, bootPrefix);
5374		markRemovedImage(config, removeMBKernel, bootPrefix);
5375		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5376		makeDefault, bootPrefix, flags, defaultIndex,
5377		newIndex);
5378		setFallbackImage(config, newKernelPath != NULL);
5379		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5380		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5381		return 1;
5382		if (updateKernelPath && newKernelInitrd) {
5383		if (newMBKernel) {
5384		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5385		bootPrefix, newKernelInitrd,
5386		newKernelTitle))
5387		return 1;
5388		} else {
5389		if (updateInitrd(config, updateKernelPath, bootPrefix,
5390		newKernelInitrd, newKernelTitle))
5391		return 1;
5392		}
5393		}
5394		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5395		newKernelTitle, newKernelArgs, newKernelInitrd,
5396		(const char **)extraInitrds, extraInitrdCount,
5397		newMBKernel, newMBKernelArgs, newDevTreePath,
5398		newIndex))
5399		return 1;
5400
5401		if (numEntries(config) == 0) {
5402		fprintf(stderr,
5403		_("grubby: doing this would leave no kernel entries. "
5404		"Not writing out new config.\n"));
5405		return 1;
5406		}
5407
5408	if (!outputFile)	if (!outputFile)
5409	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5410
5411	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5412	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3029