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 3135 by niro, Tue Jul 7 11:08:26 2020 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;
	continue;
	}
	movedLine = 0;
	if (sawEntry) {
	if (!entry->lines)
	entry->lines = line;
	else
	last->next = line;
	} else {
	if (!cfg->theLines)
	cfg->theLines = line;
	else {
	last->next = line;
	}
	}
1556
1557	last = line;	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	free(incoming);	last = line;
1580		}
1581
1582	if (defaultLine) {	free(incoming);
	if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	}
1583
1584	if (entry) cfg->defaultImage = i;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		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 {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694	}	}
	}
1695
1696	return cfg;	return cfg;
1697	}	}
1698
1699	static void writeDefault(FILE * out, char * indent,	static void writeDefault(FILE * out, char *indent,
1700	char * separator, struct grubConfig * cfg) {	char *separator, struct grubConfig *cfg)
1701	struct singleEntry * entry;	{
1702	struct singleLine * line;	struct singleEntry *entry;
1703	int i;	struct singleLine *line;
1704		int i;
1705
1706		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		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 (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	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		}
1783		}
1784
1785	if (cfg->defaultImage == DEFAULT_SAVED)	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	fprintf(out, "%sdefault%ssaved\n", indent, separator);	const char *prefix)
1787	else if (cfg->defaultImage > -1) {	{
1788	if (cfg->cfi->defaultIsIndex) {	FILE *out;
1789	fprintf(out, "%sdefault%s%d\n", indent, separator,	struct singleLine *line;
1790	cfg->defaultImage);	struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795		int rc = 0;
1796
1797		if (!strcmp(outName, "-")) {
1798		out = stdout;
1799		tmpOutName = NULL;
1800	} else {	} else {
1801	int image = cfg->defaultImage;	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1802		char *buf;
1803	entry = cfg->entries;	int len = 256;
1804	while (entry && entry->skip) entry = entry->next;	int rc;
1805
1806		/* most likely the symlink is relative, so change our
1807		directory to the dir of the symlink */
1808		char *dir = strdupa(outName);
1809		rc = chdir(dirname(dir));
1810		do {
1811		buf = alloca(len + 1);
1812		rc = readlink(basename(outName), buf, len);
1813		if (rc == len)
1814		len += 256;
1815		} while (rc == len);
1816
1817		if (rc < 0) {
1818		fprintf(stderr,
1819		_
1820		("grubby: error readlink link %s: %s\n"),
1821		outName, strerror(errno));
1822		return 1;
1823		}
1824
1825	i = 0;	outName = buf;
1826	while (entry && i < image) {	outName[rc] = '\0';
1827	entry = entry->next;	}
1828
1829	while (entry && entry->skip) entry = entry->next;	tmpOutName = alloca(strlen(outName) + 2);
1830	i++;	sprintf(tmpOutName, "%s-", outName);
1831	}	out = fopen(tmpOutName, "w");
1832		if (!out) {
1833		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1834		tmpOutName, strerror(errno));
1835		return 1;
1836		}
1837
1838	if (!entry) return;	if (!stat(outName, &sb)) {
1839		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1840		fprintf(stderr,
1841		_
1842		("grubby: error setting perms on %s: %s\n"),
1843		tmpOutName, strerror(errno));
1844		fclose(out);
1845		unlink(tmpOutName);
1846		return 1;
1847		}
1848		}
1849		}
1850
1851	line = entry->lines;	line = cfg->theLines;
1852	while (line && line->type != LT_TITLE) line = line->next;	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1853		while (line) {
1854		if (line->type == LT_SET_VARIABLE && defaultKw &&
1855		line->numElements == 3 &&
1856		!strcmp(line->elements[1].item, defaultKw->key) &&
1857		!is_special_grub2_variable(line->elements[2].item)) {
1858		writeDefault(out, line->indent,
1859		line->elements[0].indent, cfg);
1860		needs &= ~MAIN_DEFAULT;
1861		} else if (line->type == LT_DEFAULT) {
1862		writeDefault(out, line->indent,
1863		line->elements[0].indent, cfg);
1864		needs &= ~MAIN_DEFAULT;
1865		} else if (line->type == LT_FALLBACK) {
1866		if (cfg->fallbackImage > -1)
1867		fprintf(out, "%s%s%s%d\n", line->indent,
1868		line->elements[0].item,
1869		line->elements[0].indent,
1870		cfg->fallbackImage);
1871		} else {
1872		if (lineWrite(out, line, cfg->cfi) == -1) {
1873		fprintf(stderr,
1874		_("grubby: error writing %s: %s\n"),
1875		tmpOutName, strerror(errno));
1876		fclose(out);
1877		unlink(tmpOutName);
1878		return 1;
1879		}
1880		}
1881
1882	if (line && line->numElements >= 2)	line = line->next;
	fprintf(out, "%sdefault%s%s\n", indent, separator,
	line->elements[1].item);
	else if (line && (line->numElements == 1) &&
	cfg->cfi->titleBracketed) {
	fprintf(out, "%sdefault%s%s\n", indent, separator,
	extractTitle(line));
	}
1883	}	}
	}
	}
	static int writeConfig(struct grubConfig * cfg, char * outName,
	const char * prefix) {
	FILE * out;
	struct singleLine * line;
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	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;
	}
	}
	}
1884
1885	line = cfg->theLines;	if (needs & MAIN_DEFAULT) {
1886	while (line) {	writeDefault(out, cfg->primaryIndent, "=", cfg);
1887	if (line->type == LT_DEFAULT) {	needs &= ~MAIN_DEFAULT;
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
1888	}	}
1889
1890	line = line->next;	i = 0;
1891	}	while ((entry = findEntryByIndex(cfg, i++))) {
1892		if (entry->skip)
1893		continue;
1894
1895		line = entry->lines;
1896		while (line) {
1897		if (lineWrite(out, line, cfg->cfi) == -1) {
1898		fprintf(stderr,
1899		_("grubby: error writing %s: %s\n"),
1900		tmpOutName, strerror(errno));
1901		fclose(out);
1902		unlink(tmpOutName);
1903		return 1;
1904		}
1905		line = line->next;
1906		}
1907		}
1908
1909	if (needs & MAIN_DEFAULT) {	if (tmpOutName) {
1910	writeDefault(out, cfg->primaryIndent, "=", cfg);	/* write userspace buffers */
1911	needs &= ~MAIN_DEFAULT;	if (fflush(out))
1912	}	rc = 1;
1913
1914		/* purge the write-back cache with fsync() */
1915		if (fsync(fileno(out)))
1916		rc = 1;
1917
1918		if (fclose(out))
1919		rc = 1;
1920
1921		if (rc == 0 && rename(tmpOutName, outName)) {
1922		unlink(tmpOutName);
1923		rc = 1;
1924		}
1925
1926	i = 0;	/* fsync() the destination directory after rename */
1927	while ((entry = findEntryByIndex(cfg, i++))) {	if (rc == 0) {
1928	if (entry->skip) continue;	int dirfd;
1929
1930		dirfd = open(dirname(strdupa(outName)), O_RDONLY);
1931		if (dirfd < 0)
1932		rc = 1;
1933		else if (fsync(dirfd))
1934		rc = 1;
1935
1936	line = entry->lines;	if (dirfd >= 0)
1937	while (line) {	close(dirfd);
1938	if (lineWrite(out, line, cfg->cfi) == -1) {	}
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
	}
	}
1939
1940	if (tmpOutName) {	if (rc == 1)
1941	if (rename(tmpOutName, outName)) {	fprintf(stderr,
1942	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	_("grubby: error flushing data: %m\n"));
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1943	}	}
	}
1944
1945	return 0;	return rc;
1946	}	}
1947
1948	static int numEntries(struct grubConfig *cfg) {	static int numEntries(struct grubConfig *cfg)
1949	int i = 0;	{
1950	struct singleEntry * entry;	int i = 0;
1951		struct singleEntry *entry;
1952	entry = cfg->entries;
1953	while (entry) {	entry = cfg->entries;
1954	if (!entry->skip)	while (entry) {
1955	i++;	if (!entry->skip)
1956	entry = entry->next;	i++;
1957	}	entry = entry->next;
1958	return i;	}
1959		return i;
1960	}	}
1961
1962	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	static char *findDiskForRoot()
1963	int skipRemoved, int flags) {	{
1964	struct singleLine * line;	int fd;
1965	char * fullName;	char buf[65536];
1966	int i;	char *devname;
1967	struct stat sb, sb2;	char *chptr;
1968	char * dev;	int rc;
1969	char * end;
1970	char * rootspec;	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1971		fprintf(stderr, "grubby: failed to open %s: %s\n",
1972	line = entry->lines;	_PATH_MOUNTED, strerror(errno));
1973	while (line && line->type != LT_KERNEL) line = line->next;	return NULL;
1974		}
1975	if (!line) return 0;
1976	if (skipRemoved && entry->skip) return 0;	rc = read(fd, buf, sizeof(buf) - 1);
1977	if (line->numElements < 2) return 0;	if (rc <= 0) {
1978		fprintf(stderr, "grubby: failed to read %s: %s\n",
1979	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	_PATH_MOUNTED, strerror(errno));
1980		close(fd);
1981	fullName = alloca(strlen(bootPrefix) +	return NULL;
	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;
	if (line && line->numElements >= 2) {
	dev = line->elements[1].item;
	} else {
	int type;
	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS */
	line = entry->lines;
	type = ((entry->multiboot) ? LT_MBMODULE : LT_KERNELARGS);
	while (line && line->type != type) line = line->next;
	/* failed to find one */
	if (!line) return 0;
	for (i = 1; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements)
	dev = line->elements[i].item + 5;
	else {
	/* it failed too...  can't find root= */
	return 0;
	}
1982	}	}
1983	}	close(fd);
1984		buf[rc] = '\0';
1985	if (!strncmp(dev, "LABEL=", 6)) {	chptr = buf;
	dev += 6;
	/* check which device has this label */
	dev = get_spec_by_volume_label(dev, &i, &i);
	if (!dev) return 0;
	}
1986
1987	if (*dev == '/') {	char *foundanswer = NULL;
	if (stat(dev, &sb))
	return 0;
	} else {
	sb.st_rdev = strtol(dev, &end, 16);
	if (*end) return 0;
	}
	stat("/", &sb2);
1988
1989	if (sb.st_rdev != sb2.st_dev) return 0;	while (chptr && chptr != buf + rc) {
1990		devname = chptr;
1991
1992	return 1;	/*
1993	}	* The first column of a mtab entry is the device, but if the
1994		* entry is a special device it won't start with /, so move
1995		* on to the next line.
1996		*/
1997		if (*devname != '/') {
1998		chptr = strchr(chptr, '\n');
1999		if (chptr)
2000		chptr++;
2001		continue;
2002		}
2003
2004	/* returns the first match on or after the one pointed to by index (if index	/* Seek to the next space */
2005	is not NULL) which is not marked as skip */	chptr = strchr(chptr, ' ');
2006	struct singleEntry * findEntryByPath(struct grubConfig * config,	if (!chptr) {
2007	const char * kernel, const char * prefix,	fprintf(stderr, "grubby: error parsing %s: %s\n",
2008	int * index) {	_PATH_MOUNTED, strerror(errno));
2009	struct singleEntry * entry = NULL;	return NULL;
2010	struct singleLine * line;	}
	int i;
	char * chptr;
	char * rootspec = NULL;
	enum lineType_e checkType = LT_KERNEL;
2011
2012	if (isdigit(*kernel)) {	/*
2013	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	* The second column of a mtab entry is the mount point, we
2014		* are looking for '/' obviously.
2015		*/
2016		if (*(++chptr) == '/' && *(++chptr) == ' ') {
2017		/* remember the last / entry in mtab */
2018		foundanswer = devname;
2019		}
2020
2021	i = 0;	/* Next line */
2022	indexVars[i] = strtol(kernel, &chptr, 10);	chptr = strchr(chptr, '\n');
2023	while (*chptr == ',') {	if (chptr)
2024	i++;	chptr++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
2025	}	}
2026
2027	if (*chptr) {	/* Return the last / entry found */
2028	/* can't parse it, bail */	if (foundanswer) {
2029	return NULL;	chptr = strchr(foundanswer, ' ');
2030		*chptr = '\0';
2031		return strdup(foundanswer);
2032	}	}
2033
2034	indexVars[i + 1] = -1;	return NULL;
2035		}
2036	i = 0;
2037	if (index) {	void printEntry(struct singleEntry *entry, FILE * f)
2038	while (i < *index) i++;	{
2039	if (indexVars[i] == -1) return NULL;	int i;
2040		struct singleLine *line;
2041
2042		for (line = entry->lines; line; line = line->next) {
2043		log_message(f, "DBG: %s", line->indent);
2044		for (i = 0; i < line->numElements; i++) {
2045		/* Need to handle this, because we strip the quotes from
2046		* menuentry when read it. */
2047		if (line->type == LT_MENUENTRY && i == 1) {
2048		if (!isquote(*line->elements[i].item))
2049		log_message(f, "\'%s\'",
2050		line->elements[i].item);
2051		else
2052		log_message(f, "%s",
2053		line->elements[i].item);
2054		log_message(f, "%s", line->elements[i].indent);
2055
2056		continue;
2057		}
2058
2059		log_message(f, "%s%s",
2060		line->elements[i].item,
2061		line->elements[i].indent);
2062		}
2063		log_message(f, "\n");
2064	}	}
2065		}
2066
2067		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2068		...)
2069		{
2070		static int once;
2071		va_list argp, argq;
2072
2073		va_start(argp, fmt);
2074
2075		va_copy(argq, argp);
2076		if (!once) {
2077		log_time(NULL);
2078		log_message(NULL, "command line: %s\n", saved_command_line);
2079		}
2080		log_message(NULL, "DBG: Image entry %s: ",
2081		okay ? "succeeded" : "failed");
2082		log_vmessage(NULL, fmt, argq);
2083
2084		printEntry(entry, NULL);
2085		va_end(argq);
2086
2087		if (!debug) {
2088		once = 1;
2089		va_end(argp);
2090		return;
2091		}
2092
2093		if (okay) {
2094		va_end(argp);
2095		return;
2096		}
2097
2098		if (!once)
2099		log_message(stderr, "DBG: command line: %s\n",
2100		saved_command_line);
2101		once = 1;
2102		fprintf(stderr, "DBG: Image entry failed: ");
2103		vfprintf(stderr, fmt, argp);
2104		printEntry(entry, stderr);
2105		va_end(argp);
2106		}
2107
2108	entry = findEntryByIndex(config, indexVars[i]);	#define beginswith(s, c) ((s) && (s)[0] == (c))
	if (!entry) return NULL;
2109
2110	line = entry->lines;	static int endswith(const char *s, char c)
2111	while (line && line->type != LT_KERNEL)	{
2112	line = line->next;	int slen;
2113
2114	if (!line) return NULL;	if (!s || !s[0])
2115		return 0;
2116		slen = strlen(s) - 1;
2117
2118	if (index) *index = indexVars[i];	return s[slen] == c;
2119	return entry;	}
2120	}
2121		int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2122	if (!strcmp(kernel, "DEFAULT")) {	int skipRemoved, int flags)
2123	if (index && *index > config->defaultImage) {	{
2124	entry = NULL;	struct singleLine *line;
2125	} else {	char *fullName;
2126	entry = findEntryByIndex(config, config->defaultImage);	int i;
2127	if (entry && entry->skip)	char *dev;
2128	entry = NULL;	char *rootspec;
2129	else if (index)	char *rootdev;
2130	*index = config->defaultImage;
2131		if (skipRemoved && entry->skip) {
2132		notSuitablePrintf(entry, 0, "marked to skip\n");
2133		return 0;
2134		}
2135
2136		line =
2137		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2138		entry->lines);
2139		if (!line) {
2140		notSuitablePrintf(entry, 0, "no line found\n");
2141		return 0;
2142		}
2143		if (line->numElements < 2) {
2144		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2145		line->numElements);
2146		return 0;
2147	}	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2148
2149	while ((entry = findEntryByIndex(config, i))) {	if (flags & GRUBBY_BADIMAGE_OKAY) {
2150	if (!entry->skip) break;	notSuitablePrintf(entry, 1, "\n");
2151	i++;	return 1;
2152	}	}
2153
2154	if (entry && index)	fullName = alloca(strlen(bootPrefix) +
2155	*index = i;	strlen(line->elements[1].item) + 1);
2156	} else {	rootspec = getRootSpecifier(line->elements[1].item);
2157	if (index)	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2158	i = *index;	int hasslash = endswith(bootPrefix, '/') ||
2159	else	beginswith(line->elements[1].item + rootspec_offset, '/');
2160	i = 0;	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2161		line->elements[1].item + rootspec_offset);
2162		if (access(fullName, R_OK)) {
2163		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2164		return 0;
2165		}
2166		for (i = 2; i < line->numElements; i++)
2167		if (!strncasecmp(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements) {
2170		dev = line->elements[i].item + 5;
2171		} else {
2172		/* look for a lilo style LT_ROOT line */
2173		line = getLineByType(LT_ROOT, entry->lines);
2174
2175	if (!strncmp(kernel, "TITLE=", 6)) {	if (line && line->numElements >= 2) {
2176	prefix = "";	dev = line->elements[1].item;
2177	checkType = LT_TITLE;	} else {
2178	kernel += 6;	/* didn't succeed in finding a LT_ROOT, let's try
2179	}	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2180		* for the args, so check that too.
2181	while ((entry = findEntryByIndex(config, i))) {	*/
2182	line = entry->lines;	line =
2183	while (line && line->type != checkType) line=line->next;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2184		entry->lines);
2185
2186	if (line && line->numElements >= 2 && !entry->skip) {	/* failed to find one */
2187	rootspec = getRootSpecifier(line->elements[1].item);	if (!line) {
2188	if (!strcmp(line->elements[1].item  +	notSuitablePrintf(entry, 0, "no line found\n");
2189	((rootspec != NULL) ? strlen(rootspec) : 0),	return 0;
2190	kernel + strlen(prefix)))	}
2191	break;
2192	}	for (i = 1; i < line->numElements; i++)
2193		if (!strncasecmp
2194	/* have to check multiboot lines too */	(line->elements[i].item, "root=", 5))
2195	if (entry->multiboot) {	break;
2196	while (line && line->type != LT_MBMODULE) line = line->next;	if (i < line->numElements)
2197	if (line && line->numElements >= 2 && !entry->skip) {	dev = line->elements[i].item + 5;
2198	rootspec = getRootSpecifier(line->elements[1].item);	else {
2199	if (!strcmp(line->elements[1].item  +	notSuitablePrintf(entry, 0,
2200	((rootspec != NULL) ? strlen(rootspec) : 0),	"no root= entry found\n");
2201	kernel + strlen(prefix)))	/* it failed too...  can't find root= */
2202	break;	return 0;
2203	}	}
2204	}	}
2205		}
2206
2207	i++;	dev = getpathbyspec(dev);
2208		if (!getpathbyspec(dev)) {
2209		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2210		dev);
2211		return 0;
2212		} else
2213		dev = getpathbyspec(dev);
2214
2215		rootdev = findDiskForRoot();
2216		if (!rootdev) {
2217		notSuitablePrintf(entry, 0, "can't find root device\n");
2218		return 0;
2219		}
2220
2221		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2222		notSuitablePrintf(entry, 0,
2223		"uuid missing: rootdev %s, dev %s\n",
2224		getuuidbydev(rootdev), getuuidbydev(dev));
2225		free(rootdev);
2226		return 0;
2227		}
2228
2229		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2230		notSuitablePrintf(entry, 0,
2231		"uuid mismatch: rootdev %s, dev %s\n",
2232		getuuidbydev(rootdev), getuuidbydev(dev));
2233		free(rootdev);
2234		return 0;
2235	}	}
2236
2237	if (index) *index = i;	free(rootdev);
2238	}	notSuitablePrintf(entry, 1, "\n");
2239
2240	if (!entry) return NULL;	return 1;
2241		}
2242
2243	/* make sure this entry has a kernel identifier; this skips non-Linux	/* returns the first match on or after the one pointed to by index (if index
2244	boot entries (could find netbsd etc, though, which is unfortunate) */	is not NULL) which is not marked as skip */
2245	line = entry->lines;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2246	while (line && line->type != LT_KERNEL) line = line->next;	const char *kernel, const char *prefix,
2247	if (!line) {	int *index)
2248	if (!index) index = &i;	{
2249	(*index)++;	struct singleEntry *entry = NULL;
2250	return findEntryByPath(config, kernel, prefix, index);	struct singleLine *line;
2251	}	int i;
2252		char *chptr;
2253		char *rootspec = NULL;
2254		enum lineType_e checkType = LT_KERNEL;
2255
2256		if (isdigit(*kernel)) {
2257		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2258
2259		i = 0;
2260		indexVars[i] = strtol(kernel, &chptr, 10);
2261		while (*chptr == ',') {
2262		i++;
2263		kernel = chptr + 1;
2264		indexVars[i] = strtol(kernel, &chptr, 10);
2265		}
2266
2267		if (*chptr) {
2268		/* can't parse it, bail */
2269		return NULL;
2270		}
2271
2272		indexVars[i + 1] = -1;
2273
2274		i = 0;
2275		if (index) {
2276		while (i < *index) {
2277		i++;
2278		if (indexVars[i] == -1)
2279		return NULL;
2280		}
2281		}
2282
2283		entry = findEntryByIndex(config, indexVars[i]);
2284		if (!entry)
2285		return NULL;
2286
2287		line =
2288		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2289		LT_KERNEL_16, entry->lines);
2290		if (!line)
2291		return NULL;
2292
2293		if (index)
2294		*index = indexVars[i];
2295		return entry;
2296		}
2297
2298		if (!strcmp(kernel, "DEFAULT")) {
2299		if (index && *index > config->defaultImage) {
2300		entry = NULL;
2301		} else {
2302		entry = findEntryByIndex(config, config->defaultImage);
2303		if (entry && entry->skip)
2304		entry = NULL;
2305		else if (index)
2306		*index = config->defaultImage;
2307		}
2308		} else if (!strcmp(kernel, "ALL")) {
2309		if (index)
2310		i = *index;
2311		else
2312		i = 0;
2313
2314		while ((entry = findEntryByIndex(config, i))) {
2315		if (!entry->skip)
2316		break;
2317		i++;
2318		}
2319
2320		if (entry && index)
2321		*index = i;
2322		} else {
2323		if (index)
2324		i = *index;
2325		else
2326		i = 0;
2327
2328		if (!strncmp(kernel, "TITLE=", 6)) {
2329		prefix = "";
2330		checkType = LT_TITLE | LT_MENUENTRY;
2331		kernel += 6;
2332		}
2333
2334		for (entry = findEntryByIndex(config, i); entry;
2335		entry = entry->next, i++) {
2336		if (entry->skip)
2337		continue;
2338
2339		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2340		checkType, kernel, entry);
2341
2342		/* check all the lines matching checkType */
2343		for (line = entry->lines; line; line = line->next) {
2344		enum lineType_e ct = checkType;
2345		if (entry->multiboot && checkType == LT_KERNEL)
2346		ct = LT_KERNEL | LT_KERNEL_EFI |
2347		LT_MBMODULE | LT_HYPER |
2348		LT_KERNEL_16;
2349		else if (checkType & LT_KERNEL)
2350		ct = checkType | LT_KERNEL_EFI |
2351		LT_KERNEL_16;
2352		line = getLineByType(ct, line);
2353		if (!line)
2354		break; /* not found in this entry */
2355
2356		if (line && line->type != LT_MENUENTRY &&
2357		line->numElements >= 2) {
2358		rootspec =
2359		getRootSpecifier(line->elements[1].
2360		item);
2361		if (!strcmp
2362		(line->elements[1].item +
2363		((rootspec !=
2364		NULL) ? strlen(rootspec) : 0),
2365		kernel + strlen(prefix)))
2366		break;
2367		}
2368		if (line->type == LT_MENUENTRY &&
2369		!strcmp(line->elements[1].item, kernel))
2370		break;
2371		}
2372
2373		/* make sure this entry has a kernel identifier; this skips
2374		* non-Linux boot entries (could find netbsd etc, though, which is
2375		* unfortunate)
2376		*/
2377		if (line
2378		&& getLineByType(LT_KERNEL | LT_HYPER |
2379		LT_KERNEL_EFI | LT_KERNEL_16,
2380		entry->lines))
2381		break; /* found 'im! */
2382		}
2383
2384		if (index)
2385		*index = i;
2386		}
2387
2388		return entry;
2389		}
2390
2391		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2392		int *index)
2393		{
2394		struct singleEntry *entry;
2395		struct singleLine *line;
2396		int i;
2397		char *newtitle;
2398
2399		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2400		if (index && i < *index)
2401		continue;
2402		line = getLineByType(LT_TITLE, entry->lines);
2403		if (!line)
2404		line = getLineByType(LT_MENUENTRY, entry->lines);
2405		if (!line)
2406		continue;
2407		newtitle = grub2ExtractTitle(line);
2408		if (!newtitle)
2409		continue;
2410		if (!strcmp(title, newtitle))
2411		break;
2412		}
2413
2414		if (!entry)
2415		return NULL;
2416
2417	return entry;	if (index)
2418		*index = i;
2419		return entry;
2420	}	}
2421
2422	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2423	struct singleEntry * entry;	{
2424		struct singleEntry *entry;
2425
2426	entry = cfg->entries;	entry = cfg->entries;
2427	while (index && entry) {	while (index && entry) {
2428	entry = entry->next;	entry = entry->next;
2429	index--;	index--;
2430	}	}
2431
2432	return entry;	return entry;
2433	}	}
2434
2435	/* 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 2437  struct singleEntry * findEntryByIndex(st
2437	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2438	* 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,
2439	* bail. */	* bail. */
2440	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2441	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2442	struct singleEntry * entry, * entry2;	{
2443	int index;	struct singleEntry *entry, *entry2;
2444		int index;
2445	if (cfg->defaultImage > -1) {
2446	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2447	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2448	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2449	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2450		if (defTitle) {
2451		int index = 0;
2452		if (isnumber(defTitle)) {
2453		index = atoi(defTitle);
2454		entry = findEntryByIndex(cfg, index);
2455		} else {
2456		entry =
2457		findEntryByTitle(cfg, defTitle,
2458		&index);
2459		}
2460		if (entry
2461		&& suitableImage(entry, prefix, skipRemoved,
2462		flags)) {
2463		cfg->defaultImage = index;
2464		if (indexPtr)
2465		*indexPtr = index;
2466		return entry;
2467		}
2468		}
2469		}
2470		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2471		entry = findEntryByIndex(cfg, cfg->defaultImage);
2472		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2473		if (indexPtr)
2474		*indexPtr = cfg->defaultImage;
2475		return entry;
2476		}
2477	}	}
	}
2478
2479	index = 0;	index = 0;
2480	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2481	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2482	int j;	int j, unmodifiedIndex;
2483	for (j = 0; j < index; j++) {
2484	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2485	if (entry2->skip) index--;
2486	}	for (j = 0; j < unmodifiedIndex; j++) {
2487	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2488		if (entry2->skip)
2489		index--;
2490		}
2491		if (indexPtr)
2492		*indexPtr = index;
2493
2494	return entry;	return entry;
2495	}	}
2496
2497	index++;	index++;
2498	}	}
2499
2500	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2501		_("grubby fatal error: unable to find a suitable template\n"));
2502
2503	return NULL;	return NULL;
2504	}	}
2505
2506	char * findBootPrefix(void) {	char *findBootPrefix(void)
2507	struct stat sb, sb2;	{
2508		struct stat sb, sb2;
2509
2510	stat("/", &sb);	stat("/", &sb);
2511	#ifdef __ia64__	#ifdef __ia64__
2512	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2513	#else	#else
2514	stat("/boot", &sb2);	stat("/boot", &sb2);
2515	#endif	#endif
2516
2517	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2518	return strdup("");	return strdup("");
2519
2520	#ifdef __ia64__	#ifdef __ia64__
2521	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2522	#else	#else
2523	return strdup("/boot");	return strdup("/boot");
2524	#endif	#endif
2525	}	}
2526
2527	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2528	const char * prefix) {	const char *prefix)
2529	struct singleEntry * entry;	{
2530		struct singleEntry *entry;
2531	if (!image) return;
2532		if (!image)
2533	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	return;
2534	entry->skip = 1;
2535	}	/* check and see if we're removing the default image */
2536		if (isdigit(*image)) {
2537	void setDefaultImage(struct grubConfig * config, int hasNew,	entry = findEntryByPath(cfg, image, prefix, NULL);
2538	const char * defaultKernelPath, int newIsDefault,	if (entry)
2539	const char * prefix, int flags) {	entry->skip = 1;
2540	struct singleEntry * entry, * entry2, * newDefault;	return;
2541	int i, j;	}
2542
2543	if (newIsDefault) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2544	config->defaultImage = 0;	entry->skip = 1;
2545	return;	}
2546	} else if (defaultKernelPath) {
2547	i = 0;	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2548	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	const char *defaultKernelPath, int newBootEntryIsDefault,
2549	config->defaultImage = i;	const char *prefix, int flags,
2550		int newDefaultBootEntryIndex, int newBootEntryIndex)
2551		{
2552		struct singleEntry *bootEntry, *newDefault;
2553		int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2554
2555		/* initialize */
2556		currentLookupIndex = FIRST_ENTRY_INDEX;
2557
2558		/* handle the two cases where the user explictly picks the default
2559		* boot entry index as it would exist post-modification */
2560
2561		/* Case 1: user chose to make the latest boot entry the default */
2562		if (newBootEntryIsDefault) {
2563		config->defaultImage = newBootEntryIndex;
2564		return;
2565		}
2566
2567		/* Case 2: user picked an arbitrary index as the default boot entry */
2568		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) {
2569		indexToVerify = newDefaultBootEntryIndex;
2570
2571		/* user chose to make latest boot entry the default */
2572		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2573		config->defaultImage = newBootEntryIndex;
2574		return;
2575		}
2576
2577		/* the user picks the default index based on the
2578		* order of the bootloader configuration after
2579		* modification; ensure we are checking for the
2580		* existence of the correct entry */
2581		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2582		if (!config->isModified)
2583		indexToVerify--;
2584		}
2585
2586		/* verify the user selected index will exist */
2587		if (findEntryByIndex(config, indexToVerify)) {
2588		config->defaultImage = newDefaultBootEntryIndex;
2589		} else {
2590		config->defaultImage = NO_DEFAULT_ENTRY;
2591		}
2592
2593		return;
2594		}
2595
2596		/* handle cases where the index value may shift */
2597
2598		/* check validity of existing default or first-entry-found
2599		selection */
2600		if (defaultKernelPath) {
2601		/* we must initialize this */
2602		firstKernelEntryIndex = 0;
2603		/* user requested first-entry-found */
2604		if (!findEntryByPath(config, defaultKernelPath,
2605		prefix, &firstKernelEntryIndex)) {
2606		/* don't change default if can't find match */
2607		config->defaultImage = NO_DEFAULT_ENTRY;
2608		return;
2609		}
2610
2611		config->defaultImage = firstKernelEntryIndex;
2612
2613		/* this is where we start looking for decrement later */
2614		currentLookupIndex = config->defaultImage;
2615
2616		if (isAddingBootEntry && !config->isModified &&
2617		(newBootEntryIndex < config->defaultImage)) {
2618		/* increment because new entry added before default */
2619		config->defaultImage++;
2620		}
2621	} else {	} else {
2622	config->defaultImage = -1;	/* check to see if the default is stored in the environment */
2623	return;	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2624		if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2625		{
2626		if (config->cfi->defaultIsSaved) {
2627		if (config->cfi->getEnv) {
2628		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2629
2630		if (defaultTitle) {
2631		if (isnumber(defaultTitle)) {
2632		currentLookupIndex = atoi(defaultTitle);
2633		} else {
2634		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2635		}
2636		/* set the default Image to an actual index */
2637		config->defaultImage = currentLookupIndex;
2638		}
2639		}
2640		}
2641		}
2642		} else {
2643		/* use pre-existing default entry from the file*/
2644		currentLookupIndex = config->defaultImage;
2645		}
2646
2647		if (isAddingBootEntry
2648		&& (newBootEntryIndex <= config->defaultImage)) {
2649		config->defaultImage++;
2650
2651		if (config->isModified) {
2652		currentLookupIndex++;
2653		}
2654		}
2655		}
2656
2657		/* sanity check - is this entry index valid? */
2658		bootEntry = findEntryByIndex(config, currentLookupIndex);
2659
2660		if ((bootEntry && bootEntry->skip) || !bootEntry) {
2661		/* entry is to be skipped or is invalid */
2662		if (isAddingBootEntry) {
2663		config->defaultImage = newBootEntryIndex;
2664		return;
2665		}
2666		newDefault =
2667		findTemplate(config, prefix, &config->defaultImage, 1,
2668		flags);
2669		if (!newDefault) {
2670		config->defaultImage = NO_DEFAULT_ENTRY;
2671		}
2672
2673		return;
2674	}	}
	}
2675
2676	/* defaultImage now points to what we'd like to use, but before any order	currentLookupIndex--;
2677	changes */
2678	if (config->defaultImage == DEFAULT_SAVED)	/* decrement index by the total number of entries deleted */
2679	/* default is set to saved, we don't want to change it */
2680	return;	for (indexToVerify = currentLookupIndex;
2681		indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
2682	if (config->defaultImage > -1)
2683	entry = findEntryByIndex(config, config->defaultImage);	bootEntry = findEntryByIndex(config, indexToVerify);
2684	else
2685	entry = NULL;	if (bootEntry && bootEntry->skip) {
2686		config->defaultImage--;
2687		}
2688		}
2689		}
2690
2691		void setFallbackImage(struct grubConfig *config, int hasNew)
2692		{
2693		struct singleEntry *entry, *entry2;
2694		int j;
2695
2696		if (config->fallbackImage == -1)
2697		return;
2698
2699		entry = findEntryByIndex(config, config->fallbackImage);
2700		if (!entry || entry->skip) {
2701		config->fallbackImage = -1;
2702		return;
2703		}
2704
	if (entry && !entry->skip) {
	/* we can preserve the default */
2705	if (hasNew)	if (hasNew)
2706	config->defaultImage++;	config->fallbackImage++;
2707
2708	/* count the number of entries erased before this one */	/* count the number of entries erased before this one */
2709	for (j = 0; j < config->defaultImage; j++) {	for (j = 0; j < config->fallbackImage; j++) {
2710	entry2 = findEntryByIndex(config, j);	entry2 = findEntryByIndex(config, j);
2711	if (entry2->skip) config->defaultImage--;	if (entry2->skip)
2712	}	config->fallbackImage--;
2713	} 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;
	}
2714	}	}
2715
2716	void setFallbackImage(struct grubConfig * config, int hasNew) {	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2717	struct singleEntry * entry, * entry2;	{
2718	int j;	struct singleLine *line;
2719		char *root = NULL;
2720	if (config->fallbackImage == -1) return;	int i;
2721		int j;
2722	entry = findEntryByIndex(config, config->fallbackImage);
2723	if (!entry || entry->skip) {	printf("index=%d\n", index);
2724	config->fallbackImage = -1;
2725	return;	line =
2726	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2727		entry->lines);
2728		if (!line) {
2729		printf("non linux entry\n");
2730		return;
2731		}
2732
2733	if (hasNew)	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	config->fallbackImage++;	printf("kernel=%s\n", line->elements[1].item);
2735		else
2736	/* 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--;
	}
	}
2737
2738	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	if (line->numElements >= 3) {
2739	struct singleLine * line;	printf("args=\"");
2740	char * root = NULL;	i = 2;
2741	int i;	while (i < line->numElements) {
2742		if (!strncmp(line->elements[i].item, "root=", 5)) {
2743	line = entry->lines;	root = line->elements[i].item + 5;
2744	while (line && line->type != LT_KERNEL) line = line->next;	} else {
2745		printf("%s%s", line->elements[i].item,
2746	printf("index=%d\n", index);	line->elements[i].indent);
2747		}
2748	printf("kernel=%s\n", line->elements[1].item);
2749		i++;
2750	if (line->numElements >= 3) {	}
2751	printf("args=\"");	printf("\"\n");
2752	i = 2;	} else {
2753	while (i < line->numElements) {	line = getLineByType(LT_KERNELARGS, entry->lines);
2754	if (!strncmp(line->elements[i].item, "root=", 5)) {	if (line) {
2755	root = line->elements[i].item + 5;	char *s;
2756	} else {
2757	printf("%s%s", line->elements[i].item,	printf("args=\"");
2758	line->elements[i].indent);	i = 1;
2759	}	while (i < line->numElements) {
2760		if (!strncmp
2761		(line->elements[i].item, "root=", 5)) {
2762		root = line->elements[i].item + 5;
2763		} else {
2764		s = line->elements[i].item;
2765
2766		printf("%s%s", s,
2767		line->elements[i].indent);
2768		}
2769
2770		i++;
2771		}
2772
2773		s = line->elements[i - 1].indent;
2774		printf("\"\n");
2775		}
2776		}
2777
2778		if (!root) {
2779		line = getLineByType(LT_ROOT, entry->lines);
2780		if (line && line->numElements >= 2)
2781		root = line->elements[1].item;
2782		}
2783
2784		if (root) {
2785		char *s = alloca(strlen(root) + 1);
2786
2787	i++;	strcpy(s, root);
2788		if (s[strlen(s) - 1] == '"')
2789		s[strlen(s) - 1] = '\0';
2790		/* make sure the root doesn't have a trailing " */
2791		printf("root=%s\n", s);
2792	}	}
2793	printf("\"\n");
2794	} else {	line =
2795	line = entry->lines;	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2796	while (line && line->type != LT_KERNELARGS) line=line->next;	entry->lines);
2797
2798		if (line && line->numElements >= 2) {
2799		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2800		printf("initrd=");
2801		else
2802		printf("initrd=%s", prefix);
2803
2804		for (i = 1; i < line->numElements; i++)
2805		printf("%s%s", line->elements[i].item,
2806		line->elements[i].indent);
2807		printf("\n");
2808		}
2809
2810		line = getLineByType(LT_TITLE, entry->lines);
2811	if (line) {	if (line) {
2812	char * s;	char *entryTitle;
2813		/* if we can extractTitle, then it's a zipl config and
2814		* if not then we go ahead with what's existed prior */
2815		entryTitle = extractTitle(config, line);
2816		if (!entryTitle) {
2817		entryTitle=line->elements[1].item;
2818		}
2819		printf("title=%s\n", entryTitle);
2820		} else {
2821		char *title;
2822		line = getLineByType(LT_MENUENTRY, entry->lines);
2823		if (line) {
2824		title = grub2ExtractTitle(line);
2825		if (title)
2826		printf("title=%s\n", title);
2827		}
2828		}
2829
2830		for (j = 0, line = entry->lines; line; line = line->next) {
2831		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2832		if (!strncmp
2833		(prefix, line->elements[1].item, strlen(prefix)))
2834		printf("mbmodule%d=", j);
2835		else
2836		printf("mbmodule%d=%s", j, prefix);
2837
2838		for (i = 1; i < line->numElements; i++)
2839		printf("%s%s", line->elements[i].item,
2840		line->elements[i].indent);
2841		printf("\n");
2842		j++;
2843		}
2844		}
2845		}
2846
2847		int isSuseSystem(void)
2848		{
2849		const char *path;
2850		const static char default_path[] = "/etc/SuSE-release";
2851
2852		if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2853		path = default_path;
2854
2855		if (!access(path, R_OK))
2856		return 1;
2857		return 0;
2858		}
2859
2860		int isSuseGrubConf(const char *path)
2861		{
2862		FILE *grubConf;
2863		char *line = NULL;
2864		size_t len = 0, res = 0;
2865
2866		grubConf = fopen(path, "r");
2867		if (!grubConf) {
2868		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2869		path);
2870		return 0;
2871		}
2872
2873		while ((res = getline(&line, &len, grubConf)) != -1) {
2874		if (!strncmp(line, "setup", 5)) {
2875		fclose(grubConf);
2876		free(line);
2877		return 1;
2878		}
2879		}
2880
2881		dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2882		path);
2883
2884		fclose(grubConf);
2885		free(line);
2886		return 0;
2887		}
2888
2889		int suseGrubConfGetLba(const char *path, int *lbaPtr)
2890		{
2891		FILE *grubConf;
2892		char *line = NULL;
2893		size_t res = 0, len = 0;
2894
2895		if (!path)
2896		return 1;
2897		if (!lbaPtr)
2898		return 1;
2899
2900		grubConf = fopen(path, "r");
2901		if (!grubConf)
2902		return 1;
2903
2904		while ((res = getline(&line, &len, grubConf)) != -1) {
2905		if (line[res - 1] == '\n')
2906		line[res - 1] = '\0';
2907		else if (len > res)
2908		line[res] = '\0';
2909		else {
2910		line = realloc(line, res + 1);
2911		line[res] = '\0';
2912		}
2913
2914		if (!strncmp(line, "setup", 5)) {
2915		if (strstr(line, "--force-lba")) {
2916		*lbaPtr = 1;
2917		} else {
2918		*lbaPtr = 0;
2919		}
2920		dbgPrintf("lba: %i\n", *lbaPtr);
2921		break;
2922		}
2923		}
2924
2925		free(line);
2926		fclose(grubConf);
2927		return 0;
2928		}
2929
2930		int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2931		{
2932		FILE *grubConf;
2933		char *line = NULL;
2934		size_t res = 0, len = 0;
2935		char *lastParamPtr = NULL;
2936		char *secLastParamPtr = NULL;
2937		char installDeviceNumber = '\0';
2938		char *bounds = NULL;
2939
2940		if (!path)
2941		return 1;
2942		if (!devicePtr)
2943		return 1;
2944
2945		grubConf = fopen(path, "r");
2946		if (!grubConf)
2947		return 1;
2948
2949		while ((res = getline(&line, &len, grubConf)) != -1) {
2950		if (strncmp(line, "setup", 5))
2951		continue;
2952
2953		if (line[res - 1] == '\n')
2954		line[res - 1] = '\0';
2955		else if (len > res)
2956		line[res] = '\0';
2957		else {
2958		line = realloc(line, res + 1);
2959		line[res] = '\0';
2960		}
2961
2962		lastParamPtr = bounds = line + res;
2963
2964	printf("args=\"");	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2965	i = 1;	while (!isspace(*lastParamPtr))
2966	while (i < line->numElements) {	lastParamPtr--;
2967	if (!strncmp(line->elements[i].item, "root=", 5)) {	lastParamPtr++;
2968	root = line->elements[i].item + 5;
2969		secLastParamPtr = lastParamPtr - 2;
2970		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2971
2972		if (lastParamPtr + 3 > bounds) {
2973		dbgPrintf("lastParamPtr going over boundary");
2974		fclose(grubConf);
2975		free(line);
2976		return 1;
2977		}
2978		if (!strncmp(lastParamPtr, "(hd", 3))
2979		lastParamPtr += 3;
2980		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2981
2982		/*
2983		* Second last parameter will decide wether last parameter is
2984		* an IMAGE_DEVICE or INSTALL_DEVICE
2985		*/
2986		while (!isspace(*secLastParamPtr))
2987		secLastParamPtr--;
2988		secLastParamPtr++;
2989
2990		if (secLastParamPtr + 3 > bounds) {
2991		dbgPrintf("secLastParamPtr going over boundary");
2992		fclose(grubConf);
2993		free(line);
2994		return 1;
2995		}
2996		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2997		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2998		secLastParamPtr += 3;
2999		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
3000		installDeviceNumber = *secLastParamPtr;
3001	} else {	} else {
3002	s = line->elements[i].item;	installDeviceNumber = *lastParamPtr;
3003		}
3004
3005		*devicePtr = malloc(6);
3006		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
3007		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
3008		fclose(grubConf);
3009		free(line);
3010		return 0;
3011		}
3012
3013		free(line);
3014		fclose(grubConf);
3015		return 1;
3016		}
3017
3018		int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
3019		{
3020		FILE *deviceMap;
3021		char *line = NULL;
3022		size_t res = 0, len = 0;
3023		char *devicePtr;
3024		char *bounds = NULL;
3025		const char *path;
3026		const static char default_path[] = "/boot/grub/device.map";
3027
3028		if (!device)
3029		return 1;
3030		if (!bootPtr)
3031		return 1;
3032
3033		if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3034		path = default_path;
3035
3036		dbgPrintf("opening grub device.map file from: %s\n", path);
3037		deviceMap = fopen(path, "r");
3038		if (!deviceMap)
3039		return 1;
3040
3041	printf("%s%s", s, line->elements[i].indent);	while ((res = getline(&line, &len, deviceMap)) != -1) {
3042		if (!strncmp(line, "#", 1))
3043		continue;
3044
3045		if (line[res - 1] == '\n')
3046		line[res - 1] = '\0';
3047		else if (len > res)
3048		line[res] = '\0';
3049		else {
3050		line = realloc(line, res + 1);
3051		line[res] = '\0';
3052	}	}
3053
3054	i++;	devicePtr = line;
3055	}	bounds = line + res;
3056
3057		while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3058		devicePtr++;
3059		dbgPrintf("device: %s\n", devicePtr);
3060
3061		if (!strncmp(devicePtr, device, strlen(device))) {
3062		devicePtr += strlen(device);
3063		while (isspace(*devicePtr)
3064		&& ((devicePtr + 1) <= bounds))
3065		devicePtr++;
3066
3067	s = line->elements[i - 1].indent;	*bootPtr = strdup(devicePtr);
3068	printf("\"\n");	break;
3069		}
3070	}	}
	}
3071
3072	if (!root) {	free(line);
3073	line = entry->lines;	fclose(deviceMap);
3074	while (line && line->type != LT_ROOT) line = line->next;	return 0;
3075		}
3076
3077	if (line && line->numElements >= 2)	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3078	root=line->elements[1].item;	{
3079	}	char *grubDevice;
3080
3081	if (root) {	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3082	char * s = alloca(strlen(root) + 1);	dbgPrintf("error looking for grub installation device\n");
3083		else
3084	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);
	}
3085
3086	line = entry->lines;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3087	while (line && line->type != LT_INITRD) line = line->next;	dbgPrintf("error looking for grub boot device\n");
3088		else
3089		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3090
3091	if (line && line->numElements >= 2) {	free(grubDevice);
3092	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");
	}
3093	}	}
3094
3095	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3096	FILE * in;	{
3097	char buf[1024];	/*
3098	char * chptr;	* This SuSE grub configuration file at this location is not your
3099	char * start;	* average grub configuration file, but instead the grub commands
3100	char * param;	* used to setup grub on that system.
3101		*/
3102	in = fopen("/etc/sysconfig/grub", "r");	const char *path;
3103	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);
	}
3104
3105	fclose(in);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3106		path = default_path;
3107
3108	return 0;	if (!isSuseGrubConf(path))
3109		return 1;
3110
3111		if (lbaPtr) {
3112		*lbaPtr = 0;
3113		if (suseGrubConfGetLba(path, lbaPtr))
3114		return 1;
3115		}
3116
3117		if (bootPtr) {
3118		*bootPtr = NULL;
3119		suseGrubConfGetBoot(path, bootPtr);
3120		}
3121
3122		return 0;
3123	}	}
3124
3125	void dumpSysconfigGrub(void) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3126	char * boot;	{
3127	int lba;	FILE *in;
3128		char buf[1024];
3129	if (!parseSysconfigGrub(&lba, &boot)) {	char *chptr;
3130	if (lba) printf("lba\n");	char *start;
3131	if (boot) printf("boot=%s\n", boot);	char *param;
3132	}
3133		in = fopen("/etc/sysconfig/grub", "r");
3134		if (!in)
3135		return 1;
3136
3137		if (lbaPtr)
3138		*lbaPtr = 0;
3139		if (bootPtr)
3140		*bootPtr = NULL;
3141
3142		while (fgets(buf, sizeof(buf), in)) {
3143		start = buf;
3144		while (isspace(*start))
3145		start++;
3146		if (*start == '#')
3147		continue;
3148
3149		chptr = strchr(start, '=');
3150		if (!chptr)
3151		continue;
3152		chptr--;
3153		while (*chptr && isspace(*chptr))
3154		chptr--;
3155		chptr++;
3156		*chptr = '\0';
3157
3158		param = chptr + 1;
3159		while (*param && isspace(*param))
3160		param++;
3161		if (*param == '=') {
3162		param++;
3163		while (*param && isspace(*param))
3164		param++;
3165		}
3166
3167		chptr = param;
3168		while (*chptr && !isspace(*chptr))
3169		chptr++;
3170		*chptr = '\0';
3171
3172		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3173		*lbaPtr = 1;
3174		else if (!strcmp(start, "boot") && bootPtr)
3175		*bootPtr = strdup(param);
3176		}
3177
3178		fclose(in);
3179
3180		return 0;
3181	}	}
3182
3183	int displayInfo(struct grubConfig * config, char * kernel,	void dumpSysconfigGrub(void)
3184	const char * prefix) {	{
3185	int i = 0;	char *boot = NULL;
3186	struct singleEntry * entry;	int lba;
3187	struct singleLine * line;
3188		if (isSuseSystem()) {
3189	entry = findEntryByPath(config, kernel, prefix, &i);	if (parseSuseGrubConf(&lba, &boot)) {
3190	if (!entry) {	free(boot);
3191	fprintf(stderr, _("grubby: kernel not found\n"));	return;
3192	return 1;	}
3193	}	} else {
3194		if (parseSysconfigGrub(&lba, &boot)) {
3195		free(boot);
3196		return;
3197		}
3198		}
3199
3200	/* this is a horrible hack to support /etc/sysconfig/grub; there must	if (lba)
3201	be a better way */	printf("lba\n");
3202	if (config->cfi == &grubConfigType) {	if (boot) {
3203	dumpSysconfigGrub();	printf("boot=%s\n", boot);
3204	} 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);
3205	}	}
3206		}
3207
3208	line = config->theLines;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3209	while (line && line->type != LT_LBA) line = line->next;	{
3210	if (line) printf("lba\n");	int i = 0;
3211	}	struct singleEntry *entry;
3212		struct singleLine *line;
3213
3214		entry = findEntryByPath(config, kernel, prefix, &i);
3215		if (!entry) {
3216		fprintf(stderr, _("grubby: kernel not found\n"));
3217		return 1;
3218		}
3219
3220		/* this is a horrible hack to support /etc/sysconfig/grub; there must
3221		be a better way */
3222		if (config->cfi == &grubConfigType) {
3223		dumpSysconfigGrub();
3224		} else {
3225		line = getLineByType(LT_BOOT, config->theLines);
3226		if (line && line->numElements >= 1) {
3227		printf("boot=%s\n", line->elements[1].item);
3228		}
3229
3230	displayEntry(entry, prefix, i);	line = getLineByType(LT_LBA, config->theLines);
3231		if (line)
3232		printf("lba\n");
3233		}
3234
3235		displayEntry(config, entry, prefix, i);
3236
	i++;
	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
	displayEntry(entry, prefix, i);
3237	i++;	i++;
3238	}	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3239		displayEntry(config, entry, prefix, i);
3240		i++;
3241		}
3242
3243	return 0;	return 0;
3244		}
3245
3246		struct singleLine *addLineTmpl(struct singleEntry *entry,
3247		struct singleLine *tmplLine,
3248		struct singleLine *prevLine,
3249		const char *val, struct configFileInfo *cfi)
3250		{
3251		struct singleLine *newLine = lineDup(tmplLine);
3252
3253		if (isEfi && cfi == &grub2ConfigType) {
3254		enum lineType_e old = newLine->type;
3255		newLine->type = preferredLineType(newLine->type, cfi);
3256		if (old != newLine->type)
3257		newLine->elements[0].item =
3258		getKeyByType(newLine->type, cfi);
3259		}
3260
3261		if (val) {
3262		/* override the inherited value with our own.
3263		* This is a little weak because it only applies to elements[1]
3264		*/
3265		if (newLine->numElements > 1)
3266		removeElement(newLine, 1);
3267		insertElement(newLine, val, 1, cfi);
3268
3269		/* but try to keep the rootspec from the template... sigh */
3270		if (tmplLine->
3271		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3272		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3273		LT_INITRD_16)) {
3274		char *rootspec =
3275		getRootSpecifier(tmplLine->elements[1].item);
3276		if (rootspec != NULL) {
3277		free(newLine->elements[1].item);
3278		newLine->elements[1].item =
3279		sdupprintf("%s%s", rootspec, val);
3280		}
3281		}
3282		}
3283
3284		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3285		newLine->elements[0].item : "");
3286
3287		if (!entry->lines) {
3288		/* first one on the list */
3289		entry->lines = newLine;
3290		} else if (prevLine) {
3291		/* add after prevLine */
3292		newLine->next = prevLine->next;
3293		prevLine->next = newLine;
3294		}
3295
3296		return newLine;
3297	}	}
3298
3299	/* val may be NULL */	/* val may be NULL */
3300	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *addLine(struct singleEntry *entry,
3301	struct configFileInfo * cfi,	struct configFileInfo *cfi,
3302	enum lineType_e type, const char * defaultIndent,	enum lineType_e type, char *defaultIndent,
3303	char * val) {	const char *val)
3304	struct singleLine * line, * prev;	{
3305	int i;	struct singleLine *line, *prev;
3306		struct keywordTypes *kw;
3307	for (i = 0; cfi->keywords[i].key; i++)	struct singleLine tmpl;
3308	if (cfi->keywords[i].type == type) break;
3309	if (type != LT_TITLE || !cfi->titleBracketed)	/* NB: This function shouldn't allocate items on the heap, rather on
3310	if (!cfi->keywords[i].key) abort();	* the stack since it calls addLineTmpl which will make copies.
3311		*/
3312	/* The last non-empty line gives us the indention to us and the line	if (type == LT_TITLE && cfi->titleBracketed) {
3313	to insert after. Note that comments are considered empty lines, which	/* we're doing a bracketed title (zipl) */
3314	may not be ideal? If there are no lines or we are looking at the	tmpl.type = type;
3315	first line, we use defaultIndent (the first line is normally indented	tmpl.numElements = 1;
3316	differently from the rest) */	tmpl.elements = alloca(sizeof(*tmpl.elements));
3317	if (entry->lines) {	tmpl.elements[0].item = alloca(strlen(val) + 3);
3318	line = entry->lines;	sprintf(tmpl.elements[0].item, "[%s]", val);
3319	prev = NULL;	tmpl.elements[0].indent = "";
3320	while (line) {	val = NULL;
3321	if (line->numElements) prev = line;	} else if (type == LT_MENUENTRY) {
3322	line = line->next;	char *lineend = "--class gnu-linux --class gnu --class os {";
3323		if (!val) {
3324		fprintf(stderr,
3325		"Line type LT_MENUENTRY requires a value\n");
3326		abort();
3327		}
3328		kw = getKeywordByType(type, cfi);
3329		if (!kw) {
3330		fprintf(stderr,
3331		"Looking up keyword for unknown type %d\n",
3332		type);
3333		abort();
3334		}
3335		tmpl.indent = "";
3336		tmpl.type = type;
3337		tmpl.numElements = 3;
3338		tmpl.elements =
3339		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3340		tmpl.elements[0].item = kw->key;
3341		tmpl.elements[0].indent = alloca(2);
3342		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3343		tmpl.elements[1].item = (char *)val;
3344		tmpl.elements[1].indent = alloca(2);
3345		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3346		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3347		strcpy(tmpl.elements[2].item, lineend);
3348		tmpl.elements[2].indent = "";
3349		} else {
3350		kw = getKeywordByType(type, cfi);
3351		if (!kw) {
3352		fprintf(stderr,
3353		"Looking up keyword for unknown type %d\n",
3354		type);
3355		abort();
3356		}
3357		tmpl.type = type;
3358		tmpl.numElements = val ? 2 : 1;
3359		tmpl.elements =
3360		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3361		tmpl.elements[0].item = kw->key;
3362		tmpl.elements[0].indent = alloca(2);
3363		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3364		if (val) {
3365		tmpl.elements[1].item = (char *)val;
3366		tmpl.elements[1].indent = "";
3367		}
3368	}	}
	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;
3369
3370	if (prev == entry->lines)	/* The last non-empty line gives us the indention to us and the line
3371	line->indent = strdup(defaultIndent);	* to insert after. Note that comments are considered empty lines,
3372	else	* which may not be ideal? If there are no lines or we are looking at
3373	line->indent = strdup(prev->indent);	* the first line, we use defaultIndent (the first line is normally
3374	} else {	* indented differently from the rest) */
3375	line = malloc(sizeof(*line));	for (line = entry->lines, prev = NULL; line; line = line->next) {
3376	line->indent = strdup(defaultIndent);	if (line->numElements)
3377	line->next = NULL;	prev = line;
3378	}	/* fall back on the last line if prev isn't otherwise set */
3379		if (!line->next && !prev)
3380		prev = line;
3381		}
3382
3383		struct singleLine *menuEntry;
3384		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3385		if (tmpl.type == LT_ENTRY_END) {
3386		if (menuEntry)
3387		tmpl.indent = menuEntry->indent;
3388		else
3389		tmpl.indent = defaultIndent ? : "";
3390		} else if (tmpl.type != LT_MENUENTRY) {
3391		if (menuEntry)
3392		tmpl.indent = "\t";
3393		else if (prev == entry->lines)
3394		tmpl.indent = defaultIndent ? : "";
3395		else
3396		tmpl.indent = prev->indent;
3397		}
3398
3399	if (type != LT_TITLE || !cfi->titleBracketed) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3400	line->type = type;	}
3401	line->numElements = val ? 2 : 1;
3402	line->elements = malloc(sizeof(*line->elements) * line->numElements);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3403	line->elements[0].item = strdup(cfi->keywords[i].key);	{
3404	line->elements[0].indent = malloc(2);	struct singleLine *prev;
3405	line->elements[0].indent[0] = cfi->keywords[i].nextChar;	int i;
3406	line->elements[0].indent[1] = '\0';
3407		for (i = 0; i < line->numElements; i++) {
3408	if (val) {	free(line->elements[i].item);
3409	line->elements[1].item = val;	free(line->elements[i].indent);
3410	line->elements[1].indent = strdup("");	}
3411	}	free(line->elements);
3412	} else {	free(line->indent);
3413	/* we're doing the title of a bracketed title (zipl) */
3414	line->type = type;	if (line == entry->lines) {
3415	line->numElements = 1;	entry->lines = line->next;
3416	line->elements = malloc(sizeof(*line->elements) * line->numElements);	} else {
3417		prev = entry->lines;
3418	line->elements[0].item = malloc(strlen(val) + 3);	while (prev->next != line)
3419	sprintf(line->elements[0].item, "[%s]", val);	prev = prev->next;
3420	line->elements[0].indent = strdup("");	prev->next = line->next;
3421	}	}
3422
3423		free(line);
3424		}
3425
3426		static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3427		{
3428		struct singleLine newLine = {
3429		.indent = tmplLine->indent,
3430		.type = tmplLine->type,
3431		.next = tmplLine->next,
3432		};
3433		int firstQuotedItem = -1;
3434		int quoteLen = 0;
3435		int j;
3436		int element = 0;
3437		char *c;
3438
3439		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3440		strcpy(c, tmplLine->elements[0].item);
3441		insertElement(&newLine, c, element++, cfi);
3442		free(c);
3443		c = NULL;
3444
3445		for (j = 1; j < tmplLine->numElements; j++) {
3446		if (firstQuotedItem == -1) {
3447		quoteLen += strlen(tmplLine->elements[j].item);
3448
3449		if (isquote(tmplLine->elements[j].item[0])) {
3450		firstQuotedItem = j;
3451		quoteLen +=
3452		strlen(tmplLine->elements[j].indent);
3453		} else {
3454		c = malloc(quoteLen + 1);
3455		strcpy(c, tmplLine->elements[j].item);
3456		insertElement(&newLine, c, element++, cfi);
3457		free(c);
3458		quoteLen = 0;
3459		}
3460		} else {
3461		int itemlen = strlen(tmplLine->elements[j].item);
3462		quoteLen += itemlen;
3463		quoteLen += strlen(tmplLine->elements[j].indent);
3464
3465		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3466		c = malloc(quoteLen + 1);
3467		c[0] = '\0';
3468		for (int i = firstQuotedItem; i < j + 1; i++) {
3469		strcat(c, tmplLine->elements[i].item);
3470		strcat(c, tmplLine->elements[i].indent);
3471		}
3472		insertElement(&newLine, c, element++, cfi);
3473		free(c);
3474
3475		firstQuotedItem = -1;
3476		quoteLen = 0;
3477		}
3478		}
3479		}
3480		while (tmplLine->numElements)
3481		removeElement(tmplLine, 0);
3482		if (tmplLine->elements)
3483		free(tmplLine->elements);
3484
3485	return line;	tmplLine->numElements = newLine.numElements;
3486		tmplLine->elements = newLine.elements;
3487	}	}
3488
3489	void removeLine(struct singleEntry * entry, struct singleLine * line) {	static void insertElement(struct singleLine *line,
3490	struct singleLine * prev;	const char *item, int insertHere,
3491	int i;	struct configFileInfo *cfi)
3492		{
3493		struct keywordTypes *kw;
3494		char indent[2] = "";
3495
3496		/* sanity check */
3497		if (insertHere > line->numElements) {
3498		dbgPrintf
3499		("insertElement() adjusting insertHere from %d to %d\n",
3500		insertHere, line->numElements);
3501		insertHere = line->numElements;
3502		}
3503
3504		line->elements = realloc(line->elements, (line->numElements + 1) *
3505		sizeof(*line->elements));
3506		memmove(&line->elements[insertHere + 1],
3507		&line->elements[insertHere],
3508		(line->numElements - insertHere) * sizeof(*line->elements));
3509		line->elements[insertHere].item = strdup(item);
3510
3511		kw = getKeywordByType(line->type, cfi);
3512
3513		if (line->numElements == 0) {
3514		indent[0] = '\0';
3515		} else if (insertHere == 0) {
3516		indent[0] = kw->nextChar;
3517		} else if (kw->separatorChar != '\0') {
3518		indent[0] = kw->separatorChar;
3519		} else {
3520		indent[0] = ' ';
3521		}
3522
3523	for (i = 0; i < line->numElements; i++) {	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3524	free(line->elements[i].item);	/* move the end-of-line forward */
3525	free(line->elements[i].indent);	line->elements[insertHere].indent =
3526	}	line->elements[insertHere - 1].indent;
3527	free(line->elements);	line->elements[insertHere - 1].indent = strdup(indent);
3528	free(line->indent);	} else {
3529		line->elements[insertHere].indent = strdup(indent);
3530		}
3531
3532	if (line == entry->lines) {	line->numElements++;
	entry->lines = line->next;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3533
3534	free(line);	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3535		line->elements[0].item,
3536		line->elements[insertHere].item,
3537		line->elements[insertHere].indent, insertHere);
3538	}	}
3539
3540	int argMatch(const char * one, const char * two) {	static void removeElement(struct singleLine *line, int removeHere)
3541	char * first, * second;	{
3542	char * chptr;	int i;
3543
3544	first = strcpy(alloca(strlen(one) + 1), one);	/* sanity check */
3545	second = strcpy(alloca(strlen(two) + 1), two);	if (removeHere >= line->numElements)
3546		return;
3547	chptr = strchr(first, '=');
3548	if (chptr) *chptr = '\0';	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3549		removeHere, line->elements[removeHere].item);
3550	chptr = strchr(second, '=');
3551	if (chptr) *chptr = '\0';	free(line->elements[removeHere].item);
3552
3553	return strcmp(first, second);	if (removeHere > 1) {
3554	}	/* previous argument gets this argument's post-indentation */
3555		free(line->elements[removeHere - 1].indent);
3556	int updateActualImage(struct grubConfig * cfg, const char * image,	line->elements[removeHere - 1].indent =
3557	const char * prefix, const char * addArgs,	line->elements[removeHere].indent;
3558	const char * removeArgs, int multibootArgs) {	} else {
3559	struct singleEntry * entry;	free(line->elements[removeHere].indent);
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, j, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	const char * chptr;
	int useKernelArgs = 0;
	int useRoot = 0;
	int firstElement;
	int *usedElements, *usedArgs;
	if (!image) return 0;
	if (!addArgs) {
	newArgs = malloc(sizeof(*newArgs));
	*newArgs = NULL;
	} else {
	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), addArgs);
	return 1;
3560	}	}
	}
3561
3562	if (!removeArgs) {	/* now collapse the array, but don't bother to realloc smaller */
3563	oldArgs = malloc(sizeof(*oldArgs));	for (i = removeHere; i < line->numElements - 1; i++)
3564	*oldArgs = NULL;	line->elements[i] = line->elements[i + 1];
3565	} else {
3566	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	line->numElements--;
3567	fprintf(stderr,	}
3568	_("grubby: error separating arguments '%s'\n"), removeArgs);
3569	free(newArgs);	int argMatch(const char *one, const char *two)
3570	return 1;	{
3571		char *first, *second;
3572		char *chptr;
3573
3574		first = strcpy(alloca(strlen(one) + 1), one);
3575		second = strcpy(alloca(strlen(two) + 1), two);
3576
3577		chptr = strchr(first, '=');
3578		if (chptr)
3579		*chptr = '\0';
3580
3581		chptr = strchr(second, '=');
3582		if (chptr)
3583		*chptr = '\0';
3584
3585		return strcmp(first, second);
3586		}
3587
3588		int updateActualImage(struct grubConfig *cfg, const char *image,
3589		const char *prefix, const char *addArgs,
3590		const char *removeArgs, int multibootArgs)
3591		{
3592		struct singleEntry *entry;
3593		struct singleLine *line, *rootLine;
3594		int index = 0;
3595		int i, k;
3596		const char **newArgs, **oldArgs;
3597		const char **arg;
3598		int useKernelArgs, useRoot;
3599		int firstElement;
3600		int *usedElements;
3601		int doreplace;
3602
3603		if (!image)
3604		return 0;
3605
3606		if (!addArgs) {
3607		newArgs = malloc(sizeof(*newArgs));
3608		*newArgs = NULL;
3609		} else {
3610		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3611		fprintf(stderr,
3612		_("grubby: error separating arguments '%s'\n"),
3613		addArgs);
3614		return 1;
3615		}
3616		}
3617
3618		if (!removeArgs) {
3619		oldArgs = malloc(sizeof(*oldArgs));
3620		*oldArgs = NULL;
3621		} else {
3622		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3623		fprintf(stderr,
3624		_("grubby: error separating arguments '%s'\n"),
3625		removeArgs);
3626		free(newArgs);
3627		return 1;
3628		}
3629	}	}
	}
3630
3631	for (i = 0; cfg->cfi->keywords[i].key; i++)	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3632	if (cfg->cfi->keywords[i].type == LT_KERNELARGS) break;	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3633
3634	if (cfg->cfi->keywords[i].key)	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3635	useKernelArgs = 1;	&& !multibootArgs);
3636
3637	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;
3638
3639	if (cfg->cfi->keywords[i].key)	if (multibootArgs && !entry->multiboot)
3640	useRoot = 1;	continue;
3641
3642	k = 0;	/* Determine where to put the args.  If this config supports
3643	for (arg = newArgs; *arg; arg++)	* LT_KERNELARGS, use that.  Otherwise use
3644	k++;	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3645	usedArgs = calloc(k, sizeof(int));	*/
3646		if (useKernelArgs) {
3647	while ((entry = findEntryByPath(cfg, image, prefix, &index))) {	line = getLineByType(LT_KERNELARGS, entry->lines);
3648	index++;	if (!line) {
3649		/* no LT_KERNELARGS, need to add it */
3650	line = entry->lines;	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3651	while (line && line->type != LT_KERNEL) line = line->next;	cfg->secondaryIndent, NULL);
3652	if (!line) continue;	}
3653	firstElement = 2;	firstElement = 1;
3654
3655	if (entry->multiboot && !multibootArgs) {	} else if (multibootArgs) {
3656	/* first mb module line is the real kernel */	line = getLineByType(LT_HYPER, entry->lines);
3657	while (line && line->type != LT_MBMODULE) line = line->next;	if (!line) {
3658	firstElement = 2;	/* a multiboot entry without LT_HYPER? */
3659	} else if (useKernelArgs) {	continue;
3660	while (line && line->type != LT_KERNELARGS) line = line->next;	}
3661	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, '=');
3662
	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(" ");
3663	} else {	} else {
3664	/* First thing on this line; treat a bit differently. Note	line =
3665	this is only possible if we've added a LT_KERNELARGS	getLineByType(LT_KERNEL | LT_MBMODULE |
3666	entry */	LT_KERNEL_EFI | LT_KERNEL_16,
3667	line->elements[line->numElements].indent = strdup("");	entry->lines);
3668		if (!line) {
3669		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3670		continue;
3671		}
3672		firstElement = 2;
3673	}	}
3674
3675	line->numElements++;	/* handle the elilo case which does:
3676		*   append="hypervisor args -- kernel args"
3677		*/
3678		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3679		/* this is a multiboot entry, make sure there's
3680		* -- on the args line
3681		*/
3682		for (i = firstElement; i < line->numElements; i++) {
3683		if (!strcmp(line->elements[i].item, "--"))
3684		break;
3685		}
3686		if (i == line->numElements) {
3687		/* assume all existing args are kernel args,
3688		* prepend -- to make it official
3689		*/
3690		insertElement(line, "--", firstElement,
3691		cfg->cfi);
3692		i = firstElement;
3693		}
3694		if (!multibootArgs) {
3695		/* kernel args start after the -- */
3696		firstElement = i + 1;
3697		}
3698		} else if (cfg->cfi->mbConcatArgs) {
3699		/* this is a non-multiboot entry, remove hyper args */
3700		for (i = firstElement; i < line->numElements; i++) {
3701		if (!strcmp(line->elements[i].item, "--"))
3702		break;
3703		}
3704		if (i < line->numElements) {
3705		/* remove args up to -- */
3706		while (strcmp
3707		(line->elements[firstElement].item,
3708		"--"))
3709		removeElement(line, firstElement);
3710		/* remove -- */
3711		removeElement(line, firstElement);
3712		}
3713		}
3714
3715		usedElements = calloc(line->numElements, sizeof(*usedElements));
3716
3717	/* if we updated a root= here even though there is a	for (k = 0, arg = newArgs; *arg; arg++, k++) {
3718	LT_ROOT available we need to remove the LT_ROOT entry
3719	(this will happen if we switch from a device to a label) */	doreplace = 1;
3720	if (useRoot && !strncmp(*arg, "root=", 5)) {	for (i = firstElement; i < line->numElements; i++) {
3721	rootLine = entry->lines;	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3722	while (rootLine && rootLine->type != LT_ROOT)	!strcmp(line->elements[i].item, "--")) {
3723	rootLine = rootLine->next;	/* reached the end of hyper args, insert here */
3724	if (rootLine) {	doreplace = 0;
3725	removeLine(entry, rootLine);	break;
3726	}	}
3727	}	if (usedElements[i])
3728	}	continue;
3729	k++;	if (!argMatch(line->elements[i].item, *arg)) {
3730	}	usedElements[i] = 1;
3731		break;
3732	free(usedElements);	}
3733		}
3734	/* no arguments to remove (i.e. no append line) */
3735	if (!line) continue;	if (i < line->numElements && doreplace) {
3736		/* direct replacement */
3737	/* this won't remove an LT_ROOT item properly (but then again,	free(line->elements[i].item);
3738	who cares? */	line->elements[i].item = strdup(*arg);
3739	for (arg = oldArgs; *arg; arg++) {
3740	for (i = firstElement; i < line->numElements; i++)	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3741	if (!argMatch(line->elements[i].item, *arg))	/* root= replacement */
3742	break;	rootLine = getLineByType(LT_ROOT, entry->lines);
3743		if (rootLine) {
3744	if (i < line->numElements) {	free(rootLine->elements[1].item);
3745	/* if this isn't the first argument the previous argument	rootLine->elements[1].item =
3746	gets this arguments post-indention */	strdup(*arg + 5);
3747	if (i > firstElement) {	} else {
3748	free(line->elements[i - 1].indent);	rootLine =
3749	line->elements[i - 1].indent = line->elements[i].indent;	addLine(entry, cfg->cfi, LT_ROOT,
3750		cfg->secondaryIndent,
3751		*arg + 5);
3752		}
3753		}
3754
3755		else {
3756		/* insert/append */
3757		insertElement(line, *arg, i, cfg->cfi);
3758		usedElements =
3759		realloc(usedElements,
3760		line->numElements *
3761		sizeof(*usedElements));
3762		memmove(&usedElements[i + 1], &usedElements[i],
3763		line->numElements - i - 1);
3764		usedElements[i] = 1;
3765
3766		/* if we updated a root= here even though
3767		* there is a LT_ROOT available we need to
3768		* remove the LT_ROOT entry (this will happen
3769		* if we switch from a device to a label) */
3770		if (useRoot && !strncmp(*arg, "root=", 5)) {
3771		rootLine =
3772		getLineByType(LT_ROOT,
3773		entry->lines);
3774		if (rootLine)
3775		removeLine(entry, rootLine);
3776		}
3777		}
3778	}	}
	free(line->elements[i].item);
3779
3780	for (j = i + 1; j < line->numElements; j++)	free(usedElements);
	line->elements[j - 1] = line->elements[j];
3781
3782	line->numElements--;	for (arg = oldArgs; *arg; arg++) {
3783	}	for (i = firstElement; i < line->numElements; i++) {
3784	}	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3785		!strcmp(line->elements[i].item, "--"))
3786		/* reached the end of hyper args, stop here */
3787		break;
3788		if (!argMatch(line->elements[i].item, *arg)) {
3789		removeElement(line, i);
3790		break;
3791		}
3792		}
3793		/* handle removing LT_ROOT line too */
3794		if (useRoot && !strncmp(*arg, "root=", 5)) {
3795		rootLine = getLineByType(LT_ROOT, entry->lines);
3796		if (rootLine)
3797		removeLine(entry, rootLine);
3798		}
3799		}
3800
3801	if (line->numElements == 1) {	if (line->numElements == 1) {
3802	/* 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
3803	LT_KERNELARGS for this to happen */	LT_KERNELARGS for this to happen */
3804	removeLine(entry, line);	removeLine(entry, line);
3805		}
3806	}	}
	}
3807
3808	free(usedArgs);	free(newArgs);
3809	free(newArgs);	free(oldArgs);
	free(oldArgs);
3810
3811	return 0;	return 0;
3812	}	}
3813
3814	int updateImage(struct grubConfig * cfg, const char * image,	int updateImage(struct grubConfig *cfg, const char *image,
3815	const char * prefix, const char * addArgs,	const char *prefix, const char *addArgs,
3816	const char * removeArgs,	const char *removeArgs,
3817	const char * addMBArgs, const char * removeMBArgs) {	const char *addMBArgs, const char *removeMBArgs)
3818	int rc = 0;	{
3819		int rc = 0;
3820	if (!image) return rc;
3821		if (!image)
3822	/* update the main args first... */	return rc;
3823	if (addArgs || removeArgs)
3824	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	/* update the main args first... */
3825	if (rc) return rc;	if (addArgs || removeArgs)
3826		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3827	/* and now any multiboot args */	0);
3828	if (addMBArgs || removeMBArgs)	if (rc)
3829	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);	return rc;
3830	return rc;
3831	}	/* and now any multiboot args */
3832		if (addMBArgs || removeMBArgs)
3833	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	rc = updateActualImage(cfg, image, prefix, addMBArgs,
3834	int fd;	removeMBArgs, 1);
3835	unsigned char bootSect[512];	return rc;
3836	int offset;	}
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
3837
3838	if (read(fd, bootSect, 512) != 512) {	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3839	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *image, const char *prefix, const char *initrd,
3840	device, strerror(errno));	const char *title)
3841	return 1;	{
3842	}	struct singleEntry *entry;
3843	close(fd);	struct singleLine *line, *kernelLine, *endLine = NULL;
3844		int index = 0;
3845
3846		if (!image)
3847		return 0;
3848
3849		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3850		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3851		if (!kernelLine)
3852		continue;
3853
3854		/* if title is supplied, the entry's title must match it. */
3855		if (title) {
3856		char *linetitle;
3857
3858		line =
3859		getLineByType(LT_TITLE | LT_MENUENTRY,
3860		entry->lines);
3861		if (!line)
3862		continue;
3863
3864		linetitle = extractTitle(cfg, line);
3865		if (!linetitle)
3866		continue;
3867		if (strcmp(title, linetitle)) {
3868		free(linetitle);
3869		continue;
3870		}
3871		free(linetitle);
3872		}
3873
3874	/* first three bytes should match, a jmp short should be in there */	if (prefix) {
3875	if (memcmp(boot, bootSect, 3))	int prefixLen = strlen(prefix);
3876	return 0;	if (!strncmp(initrd, prefix, prefixLen))
3877		initrd += prefixLen;
3878		}
3879		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3880		if (endLine)
3881		removeLine(entry, endLine);
3882		line =
3883		addLine(entry, cfg->cfi,
3884		preferredLineType(LT_MBMODULE, cfg->cfi),
3885		kernelLine->indent, initrd);
3886		if (!line)
3887		return 1;
3888		if (endLine) {
3889		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3890		if (!line)
3891		return 1;
3892		}
3893
3894	if (boot[1] == 0xeb) {	break;
3895	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;
	}
3896
	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3897	return 0;	return 0;
3898		}
3899
3900		int updateInitrd(struct grubConfig *cfg, const char *image,
3901		const char *prefix, const char *initrd, const char *title)
3902		{
3903		struct singleEntry *entry;
3904		struct singleLine *line, *kernelLine, *endLine = NULL;
3905		int index = 0;
3906
3907		if (!image)
3908		return 0;
3909
3910		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3911		kernelLine =
3912		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3913		entry->lines);
3914		if (!kernelLine)
3915		continue;
3916
3917		/* if title is supplied, the entry's title must match it. */
3918		if (title) {
3919		char *linetitle;
3920
3921		line =
3922		getLineByType(LT_TITLE | LT_MENUENTRY,
3923		entry->lines);
3924		if (!line)
3925		continue;
3926
3927		linetitle = extractTitle(cfg, line);
3928		if (!linetitle)
3929		continue;
3930		if (strcmp(title, linetitle)) {
3931		free(linetitle);
3932		continue;
3933		}
3934		free(linetitle);
3935		}
3936
3937	return 2;	line =
3938		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3939		entry->lines);
3940		if (line)
3941		removeLine(entry, line);
3942		if (prefix) {
3943		int prefixLen = strlen(prefix);
3944		if (!strncmp(initrd, prefix, prefixLen))
3945		initrd += prefixLen;
3946		}
3947		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3948		if (endLine)
3949		removeLine(entry, endLine);
3950		enum lineType_e lt;
3951		switch (kernelLine->type) {
3952		case LT_KERNEL:
3953		lt = LT_INITRD;
3954		break;
3955		case LT_KERNEL_EFI:
3956		lt = LT_INITRD_EFI;
3957		break;
3958		case LT_KERNEL_16:
3959		lt = LT_INITRD_16;
3960		break;
3961		default:
3962		lt = preferredLineType(LT_INITRD, cfg->cfi);
3963		}
3964		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3965		if (!line)
3966		return 1;
3967		if (endLine) {
3968		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3969		if (!line)
3970		return 1;
3971		}
3972
3973		break;
3974		}
3975
3976		return 0;
3977	}	}
3978
3979	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3980	int fd;	{
3981	char buf[65536];	int fd;
3982	char * end;	unsigned char bootSect[512];
3983	char * chptr;	int offset;
3984	char * chptr2;
3985	int rc;	fd = open(device, O_RDONLY);
3986		if (fd < 0) {
3987		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3988		device, strerror(errno));
3989		return 1;
3990		}
3991
3992		if (read(fd, bootSect, 512) != 512) {
3993		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3994		device, strerror(errno));
3995		return 1;
3996		}
3997		close(fd);
3998
3999	/* it's on raid; we need to parse /proc/mdstat and check all of the	/* first three bytes should match, a jmp short should be in there */
4000	*raw* devices listed in there */	if (memcmp(boot, bootSect, 3))
4001		return 0;
4002
4003		if (boot[1] == JMP_SHORT_OPCODE) {
4004		offset = boot[2] + 2;
4005		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
4006		offset = (boot[3] << 8) + boot[2] + 2;
4007		} else if (boot[0] == JMP_SHORT_OPCODE) {
4008		offset = boot[1] + 2;
4009		/*
4010		* it looks like grub, when copying stage1 into the mbr,
4011		* patches stage1 right after the JMP location, replacing
4012		* other instructions such as JMPs for NOOPs. So, relax the
4013		* check a little bit by skipping those different bytes.
4014		*/
4015		if ((bootSect[offset + 1] == NOOP_OPCODE)
4016		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
4017		offset = offset + 3;
4018		}
4019		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
4020		offset = (boot[2] << 8) + boot[1] + 2;
4021		} else {
4022		return 0;
4023		}
4024
4025	if (!strncmp(mdDev, "/dev/", 5))	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4026	mdDev += 5;	return 0;
4027
	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
	strerror(errno));
4028	return 2;	return 2;
4029	}	}
4030
4031	rc = read(fd, buf, sizeof(buf) - 1);	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4032	if (rc < 0 || rc == (sizeof(buf) - 1)) {	{
4033	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	int fd;
4034	strerror(errno));	char buf[65536];
4035		char *end;
4036		char *chptr;
4037		char *chptr2;
4038		int rc;
4039
4040		/* it's on raid; we need to parse /proc/mdstat and check all of the
4041		*raw* devices listed in there */
4042
4043		if (!strncmp(mdDev, "/dev/", 5))
4044		mdDev += 5;
4045
4046		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4047		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4048		strerror(errno));
4049		return 2;
4050		}
4051
4052		rc = read(fd, buf, sizeof(buf) - 1);
4053		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4054		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4055		strerror(errno));
4056		close(fd);
4057		return 2;
4058		}
4059	close(fd);	close(fd);
4060	return 2;	buf[rc] = '\0';
	}
	close(fd);
	buf[rc] = '\0';
4061
4062	chptr = buf;	chptr = buf;
4063	while (*chptr) {	while (*chptr) {
4064	end = strchr(chptr, '\n');	end = strchr(chptr, '\n');
4065	if (!end) break;	if (!end)
4066	*end = '\0';	break;
4067		*end = '\0';
4068
4069		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4070		chptr[strlen(mdDev)] == ' ') {
4071
4072		/* found the device */
4073		while (*chptr && *chptr != ':')
4074		chptr++;
4075		chptr++;
4076		while (*chptr && isspace(*chptr))
4077		chptr++;
4078
4079		/* skip the "active" bit */
4080		while (*chptr && !isspace(*chptr))
4081		chptr++;
4082		while (*chptr && isspace(*chptr))
4083		chptr++;
4084
4085		/* skip the raid level */
4086		while (*chptr && !isspace(*chptr))
4087		chptr++;
4088		while (*chptr && isspace(*chptr))
4089		chptr++;
4090
4091		/* everything else is partition stuff */
4092		while (*chptr) {
4093		chptr2 = chptr;
4094		while (*chptr2 && *chptr2 != '[')
4095		chptr2++;
4096		if (!*chptr2)
4097		break;
4098
4099		/* yank off the numbers at the end */
4100		chptr2--;
4101		while (isdigit(*chptr2) && chptr2 > chptr)
4102		chptr2--;
4103		chptr2++;
4104		*chptr2 = '\0';
4105
4106		/* Better, now we need the /dev/ back. We're
4107		* done with everything before this point, so
4108		* we can just put the /dev/ part there.
4109		* There will always be room. */
4110		memcpy(chptr - 5, "/dev/", 5);
4111		rc = checkDeviceBootloader(chptr - 5, boot);
4112		if (rc != 2) {
4113		return rc;
4114		}
4115
4116		chptr = chptr2 + 1;
4117		/* skip the [11] bit */
4118		while (*chptr && !isspace(*chptr))
4119		chptr++;
4120		/* and move to the next one */
4121		while (*chptr && isspace(*chptr))
4122		chptr++;
4123		}
4124
4125	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	/*  we're good to go */
4126	chptr[strlen(mdDev)] == ' ') {	return 2;
4127		}
4128
4129		chptr = end + 1;
4130		}
4131
4132	/* found the device */	fprintf(stderr,
4133	while (*chptr && *chptr != ':') chptr++;	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4134	chptr++;	mdDev);
4135	while (*chptr && isspace(*chptr)) chptr++;	return 0;
4136		}
	/* 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++;
	}
4137
4138	/*  we're good to go */	int checkForLilo(struct grubConfig *config)
4139	return 2;	{
4140		int fd;
4141		unsigned char boot[512];
4142		struct singleLine *line;
4143
4144		for (line = config->theLines; line; line = line->next)
4145		if (line->type == LT_BOOT)
4146		break;
4147
4148		if (!line) {
4149		fprintf(stderr,
4150		_
4151		("grubby: no boot line found in lilo configuration\n"));
4152		return 1;
4153	}	}
4154
4155	chptr = end + 1;	if (line->numElements != 2)
4156	}	return 1;
4157
4158	fprintf(stderr,	fd = open("/boot/boot.b", O_RDONLY);
4159	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if (fd < 0) {
4160	mdDev);	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4161	return 0;	"/boot/boot.b", strerror(errno));
4162	}	return 1;
4163		}
4164
4165	int checkForLilo(struct grubConfig * config) {	if (read(fd, boot, 512) != 512) {
4166	int fd;	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4167	unsigned char boot[512];	"/boot/boot.b", strerror(errno));
4168	struct singleLine * line;	return 1;
4169		}
4170	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;
	}
4171
4172	if (line->numElements != 2) return 1;	if (!strncmp("/dev/md", line->elements[1].item, 7))
4173		return checkLiloOnRaid(line->elements[1].item, boot);
4174
4175	fd = open("/boot/boot.b", O_RDONLY);	return checkDeviceBootloader(line->elements[1].item, boot);
4176	if (fd < 0) {	}
4177	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4178	"/boot/boot.b", strerror(errno));	int checkForGrub2(struct grubConfig *config)
4179	return 1;	{
4180	}	if (!access("/etc/grub.d/", R_OK))
4181		return 2;
4182
	if (read(fd, boot, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/boot.b", strerror(errno));
4183	return 1;	return 1;
4184	}	}
4185	close(fd);
4186		int checkForGrub(struct grubConfig *config)
4187		{
4188		int fd;
4189		unsigned char bootSect[512];
4190		char *boot;
4191		int onSuse = isSuseSystem();
4192
4193		if (onSuse) {
4194		if (parseSuseGrubConf(NULL, &boot))
4195		return 0;
4196		} else {
4197		if (parseSysconfigGrub(NULL, &boot))
4198		return 0;
4199		}
4200
4201		/* assume grub is not installed -- not an error condition */
4202		if (!boot)
4203		return 0;
4204
4205		fd = open("/boot/grub/stage1", O_RDONLY);
4206		if (fd < 0)
4207		/* this doesn't exist if grub hasn't been installed */
4208		return 0;
4209
4210		if (read(fd, bootSect, 512) != 512) {
4211		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4212		"/boot/grub/stage1", strerror(errno));
4213		close(fd);
4214		return 1;
4215		}
4216		close(fd);
4217
4218	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* The more elaborate checks do not work on SuSE. The checks done
4219	return checkLiloOnRaid(line->elements[1].item, boot);	* seem to be reasonble (at least for now), so just return success
4220		*/
4221		if (onSuse)
4222		return 2;
4223
4224	return checkDeviceBootloader(line->elements[1].item, boot);	return checkDeviceBootloader(boot, bootSect);
4225	}	}
4226
4227	int checkForGrub(struct grubConfig * config) {	int checkForExtLinux(struct grubConfig *config)
4228	int fd;	{
4229	unsigned char bootSect[512];	int fd;
4230	char * boot;	unsigned char bootSect[512];
4231		char *boot;
4232		char executable[] = "/boot/extlinux/extlinux";
4233
4234		printf("entered: checkForExtLinux()\n");
4235
4236		if (parseSysconfigGrub(NULL, &boot))
4237		return 0;
4238
4239		/* assume grub is not installed -- not an error condition */
4240		if (!boot)
4241		return 0;
4242
4243		fd = open(executable, O_RDONLY);
4244		if (fd < 0)
4245		/* this doesn't exist if grub hasn't been installed */
4246		return 0;
4247
4248		if (read(fd, bootSect, 512) != 512) {
4249		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4250		executable, strerror(errno));
4251		return 1;
4252		}
4253		close(fd);
4254
4255	if (parseSysconfigGrub(NULL, &boot))	return checkDeviceBootloader(boot, bootSect);
4256	return 0;	}
4257
4258	/* assume grub is not installed -- not an error condition */	int checkForYaboot(struct grubConfig *config)
4259	if (!boot)	{
4260	return 0;	/*
4261		* This is a simplistic check that we consider good enough for own puporses
4262		*
4263		* If we were to properly check if yaboot is *installed* we'd need to:
4264		* 1) get the system boot device (LT_BOOT)
4265		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4266		*    the content on the boot device
4267		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4268		* 4) check again if binary and boot device contents match
4269		*/
4270		if (!access("/etc/yaboot.conf", R_OK))
4271		return 2;
4272
4273	fd = open("/boot/grub/stage1", O_RDONLY);	return 1;
4274	if (fd < 0)	}
4275	/* this doesn't exist if grub hasn't been installed */
4276	return 0;	int checkForElilo(struct grubConfig *config)
4277		{
4278		if (!access("/etc/elilo.conf", R_OK))
4279		return 2;
4280
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
4281	return 1;	return 1;
4282	}	}
	close(fd);
4283
4284	return checkDeviceBootloader(boot, bootSect);	static char *getRootSpecifier(char *str)
4285		{
4286		char *idx, *rootspec = NULL;
4287
4288		if (*str == '(') {
4289		idx = rootspec = strdup(str);
4290		while (*idx && (*idx != ')') && (!isspace(*idx)))
4291		idx++;
4292		*(++idx) = '\0';
4293		}
4294		return rootspec;
4295	}	}
4296
4297	static char * getRootSpecifier(char * str) {	static char *getInitrdVal(struct grubConfig *config,
4298	char * idx, * rootspec = NULL;	const char *prefix, struct singleLine *tmplLine,
4299		const char *newKernelInitrd,
4300		const char **extraInitrds, int extraInitrdCount)
4301		{
4302		char *initrdVal, *end;
4303		int i;
4304		size_t totalSize;
4305		size_t prefixLen;
4306		char separatorChar;
4307
4308		prefixLen = strlen(prefix);
4309		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4310
4311		for (i = 0; i < extraInitrdCount; i++) {
4312		totalSize += sizeof(separatorChar);
4313		totalSize += strlen(extraInitrds[i]) - prefixLen;
4314		}
4315
4316		initrdVal = end = malloc(totalSize);
4317
4318		end = stpcpy(end, newKernelInitrd + prefixLen);
4319
4320		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4321		for (i = 0; i < extraInitrdCount; i++) {
4322		const char *extraInitrd;
4323		int j;
4324
4325		extraInitrd = extraInitrds[i] + prefixLen;
4326		/* Don't add entries that are already there */
4327		if (tmplLine != NULL) {
4328		for (j = 2; j < tmplLine->numElements; j++)
4329		if (strcmp
4330		(extraInitrd,
4331		tmplLine->elements[j].item) == 0)
4332		break;
4333
4334	if (*str == '(') {	if (j != tmplLine->numElements)
4335	idx = rootspec = strdup(str);	continue;
4336	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	}
4337	*(++idx) = '\0';
4338	}	*end++ = separatorChar;
4339	return rootspec;	end = stpcpy(end, extraInitrd);
4340		}
4341
4342		return initrdVal;
4343	}	}
4344
4345	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4346	const char * prefix,	const char *prefix,
4347	char * newKernelPath, char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4348	char * newKernelArgs, char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4349	char * newMBKernel, char * newMBKernelArgs) {	const char **extraInitrds, int extraInitrdCount,
4350	struct singleEntry * new;	const char *newMBKernel, const char *newMBKernelArgs,
4351	struct singleLine * newLine = NULL, * tmplLine = NULL, * lastLine = NULL;	const char *newDevTreePath, int newIndex)
4352	int needs;	{
4353	char * indent = NULL;	struct singleEntry *new, *entry, *prev = NULL;
4354	char * rootspec = NULL;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4355	char * chptr;	int needs;
4356	int i;	char *indexs;
4357	enum lineType_e type;	char *chptr;
4358		int rc;
4359	if (!newKernelPath) return 0;
4360		if (!newKernelPath)
4361	/* if the newKernelTitle is too long silently munge it into something	return 0;
4362	* we can live with. truncating is first check, then we'll just mess with
4363	* it until it looks better */	rc = asprintf(&indexs, "%d", newIndex);
4364	if (config->cfi->maxTitleLength &&	if (rc < 0)
4365		return 1;
4366
4367		/* if the newKernelTitle is too long silently munge it into something
4368		* we can live with. truncating is first check, then we'll just mess with
4369		* it until it looks better */
4370		if (config->cfi->maxTitleLength &&
4371	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4372	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4373	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4374	int i = 1;	int i = 1;
4375
4376		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4377		newKernelTitle);
4378		while (findEntryByPath(config, buf, NULL, NULL)) {
4379		sprintf(numBuf, "%d", i++);
4380		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4381		}
4382
4383	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);
4384	}	}
4385
4386	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4387	}	new->skip = 0;
4388		new->multiboot = 0;
4389		new->lines = NULL;
4390		entry = config->entries;
4391		for (unsigned int i = 0; i < newIndex; i++) {
4392		if (!entry)
4393		break;
4394		prev = entry;
4395		entry = entry->next;
4396		}
4397		new->next = entry;
4398
4399	new = malloc(sizeof(*new));	if (prev)
4400	new->skip = 0;	prev->next = new;
4401	new->multiboot = 0;	else
4402	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;
	}
4403
4404	if (template) {	/* copy/update from the template */
4405	for (tmplLine = template->lines; tmplLine; tmplLine = tmplLine->next) {	needs = NEED_KERNEL | NEED_TITLE;
4406	/* remember the indention level; we may need it for new lines */	if (newKernelInitrd)
4407	if (tmplLine->numElements)	needs |= NEED_INITRD;
4408	indent = tmplLine->indent;	if (newMBKernel) {
4409		needs |= NEED_MB;
4410	/* skip comments */	new->multiboot = 1;
4411	chptr = tmplLine->indent;	}
4412	while (*chptr && isspace(*chptr)) chptr++;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4413	if (*chptr == '#') continue;	needs |= NEED_DEVTREE;
4414
4415	/* we don't need an initrd here */	if (template) {
4416	if (tmplLine->type == LT_INITRD && !newKernelInitrd) continue;	for (masterLine = template->lines;
4417		masterLine && (tmplLine = lineDup(masterLine));
4418	if (tmplLine->type == LT_KERNEL &&	lineFree(tmplLine), masterLine = masterLine->next) {
4419	!template->multiboot && (needs & KERNEL_MB)) {	dbgPrintf("addNewKernel processing %d\n",
4420	struct singleLine *l;	tmplLine->type);
4421	needs &= ~ KERNEL_MB;
4422		/* skip comments */
4423	l = addLine(new, config->cfi, LT_KERNEL,	chptr = tmplLine->indent;
4424	config->secondaryIndent,	while (*chptr && isspace(*chptr))
4425	newMBKernel + strlen(prefix));	chptr++;
4426		if (*chptr == '#')
4427	tmplLine = lastLine;	continue;
4428	if (!new->lines) {
4429	new->lines = l;	if (iskernel(tmplLine->type)
4430	} else {	&& tmplLine->numElements >= 2) {
4431	newLine->next = l;	if (!template->multiboot && (needs & NEED_MB)) {
4432	newLine = l;	/* it's not a multiboot template and
4433	}	* this is the kernel line.  Try to
4434	continue;	* be intelligent about inserting the
4435	} else if (tmplLine->type == LT_KERNEL &&	* hypervisor at the same time.
4436	template->multiboot && !new->multiboot) {	*/
4437	continue; /* don't need multiboot kernel here */	if (config->cfi->mbHyperFirst) {
4438	}	/* insert the hypervisor first */
4439		newLine =
4440	if (!new->lines) {	addLine(new, config->cfi,
4441	newLine = malloc(sizeof(*newLine));	LT_HYPER,
4442	new->lines = newLine;	tmplLine->indent,
4443	} else {	newMBKernel +
4444	newLine->next = malloc(sizeof(*newLine));	strlen(prefix));
4445	newLine = newLine->next;	/* set up for adding the
4446	}	* kernel line */
4447		free(tmplLine->indent);
4448		tmplLine->indent =
4449	newLine->indent = strdup(tmplLine->indent);	strdup(config->
4450	newLine->next = NULL;	secondaryIndent);
4451	newLine->type = tmplLine->type;	needs &= ~NEED_MB;
4452	newLine->numElements = tmplLine->numElements;	}
4453	newLine->elements = malloc(sizeof(*newLine->elements) *	if (needs & NEED_KERNEL) {
4454	newLine->numElements);	/* use addLineTmpl to
4455	for (i = 0; i < newLine->numElements; i++) {	* preserve line elements,
4456	newLine->elements[i].item = strdup(tmplLine->elements[i].item);	* otherwise we could just
4457	newLine->elements[i].indent =	* call addLine.
4458	strdup(tmplLine->elements[i].indent);	* Unfortunately this means
4459	}	* making some changes to the
4460		* template such as the
4461	lastLine = tmplLine;	* indent change above and
4462	if (tmplLine->type == LT_KERNEL && tmplLine->numElements >= 2) {	* the type change below.
4463	char * repl;	*/
4464	if (!template->multiboot) {	struct keywordTypes *mbm_kw =
4465	needs &= ~KERNEL_KERNEL;	getKeywordByType
4466	repl = newKernelPath;	(LT_MBMODULE, config->cfi);
4467	} else {	if (mbm_kw) {
4468	needs &= ~KERNEL_MB;	tmplLine->type =
4469	repl = newMBKernel;	LT_MBMODULE;
4470	}	free(tmplLine->
4471	if (new->multiboot && !template->multiboot) {	elements[0].item);
4472	free(newLine->elements[0].item);	tmplLine->elements[0].
4473	newLine->elements[0].item = strdup("module");	item =
4474	newLine->type = LT_MBMODULE;	strdup(mbm_kw->key);
4475	}	}
4476	free(newLine->elements[1].item);	newLine =
4477	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine,
4478	if (rootspec != NULL) {	newLine,
4479	newLine->elements[1].item = sdupprintf("%s%s",	newKernelPath +
4480	rootspec,	strlen(prefix),
4481	repl +	config->cfi);
4482	strlen(prefix));	needs &= ~NEED_KERNEL;
4483	} else {	}
4484	newLine->elements[1].item = strdup(repl +	if (needs & NEED_MB) { /* !mbHyperFirst */
4485	strlen(prefix));	newLine =
4486	}	addLine(new, config->cfi,
4487	} else if (tmplLine->type == LT_MBMODULE &&	LT_HYPER,
4488	tmplLine->numElements >= 2 && (needs & KERNEL_KERNEL)) {	config->
4489	needs &= ~KERNEL_KERNEL;	secondaryIndent,
4490	if (!new->multiboot && template->multiboot) {	newMBKernel +
4491	free(newLine->elements[0].item);	strlen(prefix));
4492	newLine->elements[0].item = strdup("kernel");	needs &= ~NEED_MB;
4493	newLine->type = LT_KERNEL;	}
4494	}	} else if (needs & NEED_KERNEL) {
4495	free(newLine->elements[1].item);	newLine =
4496	rootspec = getRootSpecifier(tmplLine->elements[1].item);	addLineTmpl(new, tmplLine, newLine,
4497	if (rootspec != NULL) {	newKernelPath +
4498	newLine->elements[1].item = sdupprintf("%s%s",	strlen(prefix),
4499	rootspec,	config->cfi);
4500	newKernelPath +	needs &= ~NEED_KERNEL;
4501	strlen(prefix));	}
4502	} else {
4503	newLine->elements[1].item = strdup(newKernelPath +	} else if (tmplLine->type == LT_HYPER &&
4504	strlen(prefix));	tmplLine->numElements >= 2) {
4505	}	if (needs & NEED_MB) {
4506	} else if (tmplLine->type == LT_INITRD &&	newLine =
4507	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4508	needs &= ~KERNEL_INITRD;	newMBKernel +
4509	free(newLine->elements[1].item);	strlen(prefix),
4510	if (new->multiboot && !template->multiboot) {	config->cfi);
4511	free(newLine->elements[0].item);	needs &= ~NEED_MB;
4512	newLine->elements[0].item = strdup("module");	}
4513	newLine->type = LT_MBMODULE;
4514	}	} else if (tmplLine->type == LT_MBMODULE &&
4515	rootspec = getRootSpecifier(tmplLine->elements[1].item);	tmplLine->numElements >= 2) {
4516	if (rootspec != NULL) {	if (new->multiboot) {
4517	newLine->elements[1].item = sdupprintf("%s%s",	if (needs & NEED_KERNEL) {
4518	rootspec,	newLine =
4519	newKernelInitrd +	addLineTmpl(new, tmplLine,
4520	strlen(prefix));	newLine,
4521	} else {	newKernelPath +
4522	newLine->elements[1].item = strdup(newKernelInitrd +	strlen(prefix),
4523	strlen(prefix));	config->cfi);
4524	}	needs &= ~NEED_KERNEL;
4525	} else if (tmplLine->type == LT_MBMODULE &&	} else if (config->cfi->mbInitRdIsModule
4526	tmplLine->numElements >= 2 && (needs & KERNEL_INITRD)) {	&& (needs & NEED_INITRD)) {
4527	needs &= ~KERNEL_INITRD;	char *initrdVal;
4528	if (!new->multiboot && template->multiboot) {	initrdVal =
4529	free(newLine->elements[0].item);	getInitrdVal(config, prefix,
4530	newLine->elements[0].item = strdup("initrd");	tmplLine,
4531	newLine->type = LT_INITRD;	newKernelInitrd,
4532	}	extraInitrds,
4533	free(newLine->elements[1].item);	extraInitrdCount);
4534	rootspec = getRootSpecifier(tmplLine->elements[1].item);	newLine =
4535	if (rootspec != NULL) {	addLineTmpl(new, tmplLine,
4536	newLine->elements[1].item = sdupprintf("%s%s",	newLine,
4537	rootspec,	initrdVal,
4538	newKernelInitrd +	config->cfi);
4539	strlen(prefix));	free(initrdVal);
4540	} else {	needs &= ~NEED_INITRD;
4541	newLine->elements[1].item = strdup(newKernelInitrd +	}
4542	strlen(prefix));	} else if (needs & NEED_KERNEL) {
4543	}	/* template is multi but new is not,
4544	} else if (tmplLine->type == LT_TITLE &&	* insert the kernel in the first
4545	tmplLine->numElements >= 2) {	* module slot
4546	needs &= ~KERNEL_TITLE;	*/
4547		tmplLine->type =
4548	for (i = 1; i < newLine->numElements; i++) {	preferredLineType(LT_KERNEL,
4549	free(newLine->elements[i].item);	config->cfi);
4550	free(newLine->elements[i].indent);	free(tmplLine->elements[0].item);
4551	}	tmplLine->elements[0].item =
4552		strdup(getKeywordByType
4553	newLine->elements[1].item = strdup(newKernelTitle);	(tmplLine->type,
4554	newLine->elements[1].indent = strdup("");	config->cfi)->key);
4555	newLine->numElements = 2;	newLine =
4556	} else if (tmplLine->type == LT_TITLE &&	addLineTmpl(new, tmplLine, newLine,
4557	config->cfi->titleBracketed &&	newKernelPath +
4558	tmplLine->numElements == 1) {	strlen(prefix),
4559	needs &= ~KERNEL_TITLE;	config->cfi);
4560	free(newLine->elements[0].item);	needs &= ~NEED_KERNEL;
4561	free(newLine->elements[0].indent);	} else if (needs & NEED_INITRD) {
4562	newLine->elements = malloc(sizeof(*newLine->elements) *	char *initrdVal;
4563	newLine->numElements);	/* template is multi but new is not,
4564		* insert the initrd in the second
4565	newLine->elements[0].item = malloc(strlen(newKernelTitle) + 3);	* module slot
4566	sprintf(newLine->elements[0].item, "[%s]", newKernelTitle);	*/
4567	newLine->elements[0].indent = strdup("");	tmplLine->type =
4568	newLine->numElements = 1;	preferredLineType(LT_INITRD,
4569	}	config->cfi);
4570	}	free(tmplLine->elements[0].item);
4571	} else {	tmplLine->elements[0].item =
4572	for (i = 0; config->cfi->keywords[i].key; i++) {	strdup(getKeywordByType
4573	if ((config->cfi->keywords[i].type == config->cfi->entrySeparator) || (config->cfi->keywords[i].type == LT_OTHER))	(tmplLine->type,
4574	break;	config->cfi)->key);
4575	}	initrdVal =
4576		getInitrdVal(config, prefix,
4577		tmplLine,
4578		newKernelInitrd,
4579		extraInitrds,
4580		extraInitrdCount);
4581		newLine =
4582		addLineTmpl(new, tmplLine, newLine,
4583		initrdVal, config->cfi);
4584		free(initrdVal);
4585		needs &= ~NEED_INITRD;
4586		}
4587
4588		} else if (isinitrd(tmplLine->type)
4589		&& tmplLine->numElements >= 2) {
4590		if (needs & NEED_INITRD && new->multiboot
4591		&& !template->multiboot
4592		&& config->cfi->mbInitRdIsModule) {
4593		/* make sure we don't insert the
4594		* module initrd before the module
4595		* kernel... if we don't do it here,
4596		* it will be inserted following the
4597		* template.
4598		*/
4599		if (!needs & NEED_KERNEL) {
4600		char *initrdVal;
4601
4602		initrdVal =
4603		getInitrdVal(config, prefix,
4604		tmplLine,
4605		newKernelInitrd,
4606		extraInitrds,
4607		extraInitrdCount);
4608		newLine =
4609		addLine(new, config->cfi,
4610		LT_MBMODULE,
4611		config->
4612		secondaryIndent,
4613		initrdVal);
4614		free(initrdVal);
4615		needs &= ~NEED_INITRD;
4616		}
4617		} else if (needs & NEED_INITRD) {
4618		char *initrdVal;
4619		initrdVal =
4620		getInitrdVal(config, prefix,
4621		tmplLine,
4622		newKernelInitrd,
4623		extraInitrds,
4624		extraInitrdCount);
4625		newLine =
4626		addLineTmpl(new, tmplLine, newLine,
4627		initrdVal, config->cfi);
4628		free(initrdVal);
4629		needs &= ~NEED_INITRD;
4630		}
4631
4632		} else if (tmplLine->type == LT_MENUENTRY &&
4633		(needs & NEED_TITLE)) {
4634		requote(tmplLine, config->cfi);
4635		char *nkt = malloc(strlen(newKernelTitle) + 3);
4636		strcpy(nkt, "'");
4637		strcat(nkt, newKernelTitle);
4638		strcat(nkt, "'");
4639		newLine =
4640		addLineTmpl(new, tmplLine, newLine, nkt,
4641		config->cfi);
4642		free(nkt);
4643		needs &= ~NEED_TITLE;
4644		} else if (tmplLine->type == LT_TITLE &&
4645		(needs & NEED_TITLE)) {
4646		if (tmplLine->numElements >= 2) {
4647		newLine =
4648		addLineTmpl(new, tmplLine, newLine,
4649		newKernelTitle,
4650		config->cfi);
4651		needs &= ~NEED_TITLE;
4652		} else if (tmplLine->numElements == 1 &&
4653		config->cfi->titleBracketed) {
4654		/* addLineTmpl doesn't handle
4655		* titleBracketed */
4656		newLine =
4657		addLine(new, config->cfi, LT_TITLE,
4658		tmplLine->indent,
4659		newKernelTitle);
4660		needs &= ~NEED_TITLE;
4661		}
4662		} else if (tmplLine->type == LT_ECHO) {
4663		requote(tmplLine, config->cfi);
4664		static const char *prefix = "'Loading ";
4665		if (tmplLine->numElements > 1 &&
4666		strstr(tmplLine->elements[1].item, prefix)
4667		&& masterLine->next
4668		&& iskernel(masterLine->next->type)) {
4669		char *newTitle =
4670		malloc(strlen(prefix) +
4671		strlen(newKernelTitle) + 2);
4672
4673		strcpy(newTitle, prefix);
4674		strcat(newTitle, newKernelTitle);
4675		strcat(newTitle, "'");
4676		newLine =
4677		addLine(new, config->cfi, LT_ECHO,
4678		tmplLine->indent, newTitle);
4679		free(newTitle);
4680		} else {
4681		/* pass through other lines from the
4682		* template */
4683		newLine =
4684		addLineTmpl(new, tmplLine, newLine,
4685		NULL, config->cfi);
4686		}
4687		} else if (tmplLine->type == LT_DEVTREE &&
4688		tmplLine->numElements == 2
4689		&& newDevTreePath) {
4690		newLine =
4691		addLineTmpl(new, tmplLine, newLine,
4692		newDevTreePath + strlen(prefix),
4693		config->cfi);
4694		needs &= ~NEED_DEVTREE;
4695		} else if (tmplLine->type == LT_ENTRY_END
4696		&& needs & NEED_DEVTREE) {
4697		const char *ndtp = newDevTreePath;
4698		if (!strncmp
4699		(newDevTreePath, prefix, strlen(prefix)))
4700		ndtp += strlen(prefix);
4701		newLine = addLine(new, config->cfi, LT_DEVTREE,
4702		config->secondaryIndent,
4703		ndtp);
4704		needs &= ~NEED_DEVTREE;
4705		newLine =
4706		addLineTmpl(new, tmplLine, newLine, NULL,
4707		config->cfi);
4708		} else {
4709		/* pass through other lines from the template */
4710		newLine =
4711		addLineTmpl(new, tmplLine, newLine, NULL,
4712		config->cfi);
4713		}
4714		}
4715
4716	switch (config->cfi->keywords[i].type) {	} else {
4717	case LT_KERNEL:  needs &= ~KERNEL_KERNEL,	/* don't have a template, so start the entry with the
4718	chptr = newKernelPath + strlen(prefix);	* appropriate starting line
4719	type = LT_KERNEL; break;	*/
4720	case LT_TITLE:   needs &= ~KERNEL_TITLE, chptr = newKernelTitle;	switch (config->cfi->entryStart) {
4721	type = LT_TITLE; break;	case LT_KERNEL:
4722	default:	case LT_KERNEL_EFI:
4723	/* zipl strikes again */	case LT_KERNEL_16:
4724	if (config->cfi->titleBracketed) {	if (new->multiboot && config->cfi->mbHyperFirst) {
4725	needs &= ~KERNEL_TITLE;	/* fall through to LT_HYPER */
4726	chptr = newKernelTitle;	} else {
4727	type = LT_TITLE;	newLine = addLine(new, config->cfi,
4728	break;	preferredLineType(LT_KERNEL,
4729	} else {	config->
4730	abort();	cfi),
4731	}	config->primaryIndent,
4732	}	newKernelPath +
4733		strlen(prefix));
4734		needs &= ~NEED_KERNEL;
4735		break;
4736		}
4737
4738		case LT_HYPER:
4739		newLine = addLine(new, config->cfi, LT_HYPER,
4740		config->primaryIndent,
4741		newMBKernel + strlen(prefix));
4742		needs &= ~NEED_MB;
4743		break;
4744
4745		case LT_MENUENTRY:{
4746		char *nkt = malloc(strlen(newKernelTitle) + 3);
4747		strcpy(nkt, "'");
4748		strcat(nkt, newKernelTitle);
4749		strcat(nkt, "'");
4750		newLine =
4751		addLine(new, config->cfi, LT_MENUENTRY,
4752		config->primaryIndent, nkt);
4753		free(nkt);
4754		needs &= ~NEED_TITLE;
4755		needs |= NEED_END;
4756		break;
4757		}
4758		case LT_TITLE:
4759		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4760		char *templabel;
4761		int x = 0, y = 0;
4762
4763		templabel = strdup(newKernelTitle);
4764		while (templabel[x]) {
4765		if (templabel[x] == ' ') {
4766		y = x;
4767		while (templabel[y]) {
4768		templabel[y] =
4769		templabel[y + 1];
4770		y++;
4771		}
4772		}
4773		x++;
4774		}
4775		newLine = addLine(new, config->cfi, LT_TITLE,
4776		config->primaryIndent,
4777		templabel);
4778		free(templabel);
4779		} else {
4780		newLine = addLine(new, config->cfi, LT_TITLE,
4781		config->primaryIndent,
4782		newKernelTitle);
4783		}
4784		needs &= ~NEED_TITLE;
4785		break;
4786
4787	newLine = addLine(new, config->cfi, type, config->primaryIndent, chptr);	default:
4788	new->lines = newLine;	abort();
4789	}	}
4790		}
	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));
	}
4791
4792	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	struct singleLine *endLine = NULL;
4793	newMBKernelArgs, NULL)) return 1;	endLine = getLineByType(LT_ENTRY_END, new->lines);
4794		if (endLine) {
4795		removeLine(new, endLine);
4796		needs |= NEED_END;
4797		}
4798
4799		/* add the remainder of the lines, i.e. those that either
4800		* weren't present in the template, or in the case of no template,
4801		* all the lines following the entryStart.
4802		*/
4803		if (needs & NEED_TITLE) {
4804		newLine = addLine(new, config->cfi, LT_TITLE,
4805		config->secondaryIndent, newKernelTitle);
4806		needs &= ~NEED_TITLE;
4807		}
4808		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4809		newLine = addLine(new, config->cfi, LT_HYPER,
4810		config->secondaryIndent,
4811		newMBKernel + strlen(prefix));
4812		needs &= ~NEED_MB;
4813		}
4814		if (needs & NEED_KERNEL) {
4815		newLine = addLine(new, config->cfi,
4816		(new->multiboot
4817		&& getKeywordByType(LT_MBMODULE,
4818		config->cfi))
4819		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4820		config->
4821		cfi),
4822		config->secondaryIndent,
4823		newKernelPath + strlen(prefix));
4824		needs &= ~NEED_KERNEL;
4825		}
4826		if (needs & NEED_MB) {
4827		newLine = addLine(new, config->cfi, LT_HYPER,
4828		config->secondaryIndent,
4829		newMBKernel + strlen(prefix));
4830		needs &= ~NEED_MB;
4831		}
4832		if (needs & NEED_INITRD) {
4833		char *initrdVal;
4834		initrdVal =
4835		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4836		extraInitrds, extraInitrdCount);
4837		newLine =
4838		addLine(new, config->cfi,
4839		(new->multiboot
4840		&& getKeywordByType(LT_MBMODULE, config->cfi))
4841		? LT_MBMODULE : preferredLineType(LT_INITRD,
4842		config->cfi),
4843		config->secondaryIndent, initrdVal);
4844		free(initrdVal);
4845		needs &= ~NEED_INITRD;
4846		}
4847		if (needs & NEED_DEVTREE) {
4848		newLine = addLine(new, config->cfi, LT_DEVTREE,
4849		config->secondaryIndent, newDevTreePath);
4850		needs &= ~NEED_DEVTREE;
4851		}
4852
4853		/* NEEDS_END must be last on bootloaders that need it... */
4854		if (needs & NEED_END) {
4855		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4856		config->secondaryIndent, NULL);
4857		needs &= ~NEED_END;
4858		}
4859
4860		if (needs) {
4861		printf(_("grubby: needs=%d, aborting\n"), needs);
4862		abort();
4863		}
4864
4865		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4866		newMBKernelArgs, NULL)) {
4867		config->isModified = 1;
4868		return 1;
4869		}
4870
4871	return 0;	return 0;
4872	}	}
4873
4874	int main(int argc, const char ** argv) {	int main(int argc, const char **argv)
4875	poptContext optCon;	{
4876	char * grubConfig = NULL;	poptContext optCon;
4877	char * outputFile = NULL;	const char *grubConfig = NULL;
4878	int arg = 0;	char *outputFile = NULL;
4879	int flags = 0;	int arg = 0;
4880	int badImageOkay = 0;	int flags = 0;
4881	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int badImageOkay = 0;
4882	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	int configureGrub2 = 0;
4883	int bootloaderProbe = 0;	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4884	char * updateKernelPath = NULL;	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4885	char * newKernelPath = NULL;	int configureExtLinux = 0;
4886	char * removeKernelPath = NULL;	int bootloaderProbe = 0;
4887	char * newKernelArgs = NULL;	int extraInitrdCount = 0;
4888	char * newKernelInitrd = NULL;	char *updateKernelPath = NULL;
4889	char * newKernelTitle = NULL;	char *newKernelPath = NULL;
4890	char * newKernelVersion = NULL;	char *removeKernelPath = NULL;
4891	char * newMBKernel = NULL;	char *newKernelArgs = NULL;
4892	char * newMBKernelArgs = NULL;	char *newKernelInitrd = NULL;
4893	char * removeMBKernelArgs = NULL;	char *newKernelTitle = NULL;
4894	char * removeMBKernel = NULL;	char *newDevTreePath = NULL;
4895	char * bootPrefix = NULL;	char *newMBKernel = NULL;
4896	char * defaultKernel = NULL;	char *newMBKernelArgs = NULL;
4897	char * removeArgs = NULL;	int newIndex = 0;
4898	char * kernelInfo = NULL;	char *removeMBKernelArgs = NULL;
4899	const char * chptr = NULL;	char *removeMBKernel = NULL;
4900	struct configFileInfo * cfi = NULL;	char *bootPrefix = NULL;
4901	struct grubConfig * config;	char *defaultKernel = NULL;
4902	struct singleEntry * template = NULL;	char *removeArgs = NULL;
4903	int copyDefault = 0, makeDefault = 0;	char *kernelInfo = NULL;
4904	int displayDefault = 0;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4905	struct poptOption options[] = {	char *envPath = NULL;
4906	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	const char *chptr = NULL;
4907	_("add an entry for the specified kernel"), _("kernel-path") },	struct configFileInfo *cfi = NULL;
4908	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	struct grubConfig *config;
4909	_("add an entry for the specified multiboot kernel"), NULL },	struct singleEntry *template = NULL;
4910	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	int copyDefault = 0, makeDefault = 0;
4911	_("default arguments for the new kernel or new arguments for "	int displayDefault = 0;
4912	"kernel being updated"), _("args") },	int displayDefaultIndex = 0;
4913	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	int displayDefaultTitle = 0;
4914	_("default arguments for the new multiboot kernel or "	int defaultIndex = -1;
4915	"new arguments for multiboot kernel being updated"), NULL },	struct poptOption options[] = {
4916	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4917	_("don't sanity check images in boot entries (for testing only)"),	_("add an entry for the specified kernel"), _("kernel-path")},
4918	NULL },	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4919	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	_("add an entry for the specified multiboot kernel"), NULL},
4920	_("filestystem which contains /boot directory (for testing only)"),	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4921	_("bootfs") },	_("default arguments for the new kernel or new arguments for "
4922	#if defined(__i386__) || defined(__x86_64__)	"kernel being updated"), _("args")},
4923	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4924	_("check if lilo is installed on lilo.conf boot sector") },	_("default arguments for the new multiboot kernel or "
4925		"new arguments for multiboot kernel being updated"), NULL},
4926		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4927		_
4928		("don't sanity check images in boot entries (for testing only)"),
4929		NULL},
4930		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4931		_
4932		("filesystem which contains /boot directory (for testing only)"),
4933		_("bootfs")},
4934		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4935		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4936		_("check which bootloader is installed on boot sector")},
4937	#endif	#endif
4938	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4939	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4940	_("path") },	_("path")},
4941	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4942	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4943	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4944	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4945	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4946	"template"), NULL },	"template"), NULL},
4947	{ "default-kernel", 0, 0, &displayDefault, 0,	{"debug", 0, 0, &debug, 0,
4948	_("display the path of the default kernel") },	_("print debugging information for failures")},
4949	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4950	_("configure elilo bootloader") },	_("display the path of the default kernel")},
4951	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4952	_("configure grub bootloader") },	_("display the index of the default kernel")},
4953	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4954	_("display boot information for specified kernel"),	_("display the title of the default kernel")},
4955	_("kernel-path") },	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4956	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	_("device tree file for new stanza"), _("dtb-path")},
4957	_("initrd image for the new kernel"), _("initrd-path") },	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4958	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	_("device tree directory for new stanza"), _("dtb-path")},
4959	_("configure lilo bootloader") },	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4960	{ "make-default", 0, 0, &makeDefault, 0,	_("configure elilo bootloader")},
4961	_("make the newly added entry the default boot entry"), NULL },	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4962	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("force grub2 stanzas to use efi")},
4963	_("path to output updated config file (\"-\" for stdout)"),	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4964	_("path") },	_("path for environment data"),
4965	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	_("path")},
4966	_("remove kernel arguments"), NULL },	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4967	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	_("configure extlinux bootloader (from syslinux)")},
4968	_("remove multiboot kernel arguments"), NULL },	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4969	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	_("configure grub bootloader")},
4970	_("remove all entries for the specified kernel"),	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4971	_("kernel-path") },	_("configure grub2 bootloader")},
4972	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4973	_("remove all entries for the specified multiboot kernel"), NULL },	_("display boot information for specified kernel"),
4974	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("kernel-path")},
4975	_("make the first entry referencing the specified kernel "	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4976	"the default"), _("kernel-path") },	_("initrd image for the new kernel"), _("initrd-path")},
4977	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4978	_("configure silo bootloader") },	_
4979	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	("auxiliary initrd image for things other than the new kernel"),
4980	_("title to use for the new kernel entry"), _("entry-title") },	_("initrd-path")},
4981	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4982	_("updated information for the specified kernel"),	_("configure lilo bootloader")},
4983	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4984	{ "version", 'v', 0, NULL, 'v',	_("make the newly added entry the default boot entry"), NULL},
4985	_("print the version of this program and exit"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4986	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	_("path to output updated config file (\"-\" for stdout)"),
4987	_("configure yaboot bootloader") },	_("path")},
4988	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4989	_("configure zipl bootloader") },	_("remove kernel arguments"), NULL},
4990	POPT_AUTOHELP	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4991	{ 0, 0, 0, 0, 0 }	_("remove multiboot kernel arguments"), NULL},
4992	};	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4993		_("remove all entries for the specified kernel"),
4994	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("kernel-path")},
4995	poptReadDefaultConfig(optCon, 1);	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4996		_("remove all entries for the specified multiboot kernel"),
4997	while ((arg = poptGetNextOpt(optCon)) >= 0) {	NULL},
4998	switch (arg) {	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4999	case 'v':	_("make the first entry referencing the specified kernel "
5000	printf("grubby version %s\n", VERSION);	"the default"), _("kernel-path")},
5001	exit(0);	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
5002	break;	_("make the given entry index the default entry"),
5003		_("entry-index")},
5004		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
5005		_("use the given index when creating a new entry"),
5006		_("entry-index")},
5007		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
5008		_("configure silo bootloader")},
5009		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
5010		_("title to use for the new kernel entry"), _("entry-title")},
5011		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
5012		_("updated information for the specified kernel"),
5013		_("kernel-path")},
5014		{"version", 'v', 0, NULL, 'v',
5015		_("print the version of this program and exit"), NULL},
5016		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
5017		_("configure yaboot bootloader")},
5018		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
5019		_("configure zipl bootloader")},
5020		POPT_AUTOHELP {0, 0, 0, 0, 0}
5021		};
5022
5023		useextlinuxmenu = 0;
5024
5025		int i = 0;
5026		for (int j = 1; j < argc; j++)
5027		i += strlen(argv[j]) + 1;
5028		saved_command_line = malloc(i);
5029		if (!saved_command_line) {
5030		fprintf(stderr, "grubby: %m\n");
5031		exit(1);
5032		}
5033		saved_command_line[0] = '\0';
5034		for (int j = 1; j < argc; j++) {
5035		strcat(saved_command_line, argv[j]);
5036		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5037		}
5038
5039		optCon = poptGetContext("grubby", argc, argv, options, 0);
5040		poptReadDefaultConfig(optCon, 1);
5041
5042		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5043		switch (arg) {
5044		case 'v':
5045		printf("grubby version %s\n", VERSION);
5046		exit(0);
5047		break;
5048		case 'i':
5049		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5050		extraInitrds[extraInitrdCount++] =
5051		strdup(poptGetOptArg(optCon));
5052		} else {
5053		fprintf(stderr,
5054		_
5055		("grubby: extra initrd maximum is %d\n"),
5056		extraInitrdCount);
5057		return 1;
5058		}
5059		break;
5060		}
5061	}	}
	}
	if (arg < -1) {
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
5062
5063	if ((chptr = poptGetArg(optCon))) {	if (arg < -1) {
5064	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5065	return 1;	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5066	}	poptStrerror(arg));
5067		return 1;
5068		}
5069
5070	if ((configureLilo + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5071	configureYaboot + configureSilo + configureZipl) > 1) {	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5072	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	return 1;
5073	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;
	}
5074
5075	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5076	#ifdef __ia64__	configureYaboot + configureSilo + configureZipl +
5077	cfi = &eliloConfigType;	configureExtLinux) > 1) {
5078	#elif __powerpc__	fprintf(stderr,
5079	cfi = &yabootConfigType;	_("grubby: cannot specify multiple bootloaders\n"));
5080	#elif __sparc__	return 1;
5081	cfi = &siloConfigType;	} else if (bootloaderProbe && grubConfig) {
5082	#elif __s390__	fprintf(stderr,
5083	cfi = &ziplConfigType;	_
5084	#elif __s390x__	("grubby: cannot specify config file with --bootloader-probe\n"));
5085	cfi = &ziplConfigtype;	return 1;
5086	#else	} else if (configureGrub2) {
5087	cfi = &grubConfigType;	cfi = &grub2ConfigType;
5088	#endif	if (envPath)
5089	}	cfi->envFile = envPath;
5090		} else if (configureLilo) {
5091		cfi = &liloConfigType;
5092		} else if (configureGrub) {
5093		cfi = &grubConfigType;
5094		} else if (configureELilo) {
5095		cfi = &eliloConfigType;
5096		} else if (configureYaboot) {
5097		cfi = &yabootConfigType;
5098		} else if (configureSilo) {
5099		cfi = &siloConfigType;
5100		} else if (configureZipl) {
5101		cfi = &ziplConfigType;
5102		} else if (configureExtLinux) {
5103		cfi = &extlinuxConfigType;
5104		useextlinuxmenu = 1;
5105		}
5106
5107		if (!cfi) {
5108		if (grub2FindConfig(&grub2ConfigType)) {
5109		cfi = &grub2ConfigType;
5110		if (envPath)
5111		cfi->envFile = envPath;
5112		} else
5113		#ifdef __ia64__
5114		cfi = &eliloConfigType;
5115		#elif __powerpc__
5116		cfi = &yabootConfigType;
5117		#elif __sparc__
5118		cfi = &siloConfigType;
5119		#elif __s390__
5120		cfi = &ziplConfigType;
5121		#elif __s390x__
5122		cfi = &ziplConfigtype;
5123		#else
5124		cfi = &grubConfigType;
5125		#endif
5126		}
5127
5128	if (!grubConfig)	if (!grubConfig) {
5129	grubConfig = cfi->defaultConfig;	if (cfi->findConfig)
5130		grubConfig = cfi->findConfig(cfi);
5131		if (!grubConfig)
5132		grubConfig = cfi->defaultConfig;
5133		}
5134
5135	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5136	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5137	defaultKernel)) {	|| defaultKernel || displayDefaultIndex
5138	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5139		|| (defaultIndex >= 0))) {
5140		fprintf(stderr,
5141		_("grubby: --bootloader-probe may not be used with "
5142	"specified option"));	"specified option"));
5143	return 1;	return 1;
5144	}	}
5145
5146	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5147	removeKernelPath)) {	removeKernelPath)) {
5148	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5149	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5150	return 1;	return 1;
5151	}	}
5152
5153	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5154	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5155	return 1;	return 1;
5156	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||	} else if (!newKernelPath && (copyDefault ||
5157	newKernelInitrd || copyDefault     ||	(newKernelInitrd && !updateKernelPath) ||
5158	makeDefault)) {	makeDefault || extraInitrdCount > 0)) {
5159	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5160	return 1;	return 1;
5161	}	}
5162
5163	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5164	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5165	"not be used together"));	"not be used together"));
5166	return 1;	return 1;
5167	}	}
5168
5169	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5170	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5171		"may not be used together\n"));
5172		return 1;
5173		} else if (defaultKernel && removeKernelPath &&
5174		!strcmp(defaultKernel, removeKernelPath)) {
5175		fprintf(stderr,
5176		_("grubby: cannot make removed kernel the default\n"));
5177		return 1;
5178		} else if (defaultKernel && newKernelPath &&
5179		!strcmp(defaultKernel, newKernelPath)) {
5180		makeDefault = 1;
5181		defaultKernel = NULL;
5182		} else if (defaultKernel && (defaultIndex >= 0)) {
5183		fprintf(stderr,
5184		_("grubby: --set-default and --set-default-index "
5185	"may not be used together\n"));	"may not be used together\n"));
5186	return 1;	return 1;
5187	} 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;
	}
5188
5189	if (!strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5190	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5191	"is used\n"));	_("grubby: output file must be specified if stdin "
5192	return 1;	"is used\n"));
5193	}	return 1;
5194		}
5195
5196	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5197	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5198	&& !removeMBKernel) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5199	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5200	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5201	}	return 1;
5202		}
5203
5204	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5205
5206	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5207	if (!bootPrefix) {	if (!bootPrefix) {
5208	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5209	if (!bootPrefix) return 1;	if (!bootPrefix)
5210	} else {	return 1;
5211	/* this shouldn't end with a / */	} else {
5212	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5213	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5214		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5215		}
5216		} else {
5217		bootPrefix = "";
5218	}	}
	} else {
	bootPrefix = "";
	}
5219
5220	if (bootloaderProbe) {	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5221	int lrc = 0, grc = 0;	fprintf(stderr,
5222	struct grubConfig * lconfig, * gconfig;	_("grubby: %s doesn't allow multiple initrds\n"),
5223		cfi->defaultConfig);
5224	if (!access(grubConfigType.defaultConfig, F_OK)) {	return 1;
5225	gconfig = readConfig(grubConfigType.defaultConfig, &grubConfigType);	}
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
5226
5227	if (lrc == 1 || grc == 1) return 1;	if (bootloaderProbe) {
5228		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5229		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5230
5231		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5232		if (grub2config) {
5233		gconfig = readConfig(grub2config, &grub2ConfigType);
5234		if (!gconfig)
5235		gr2c = 1;
5236		else
5237		gr2c = checkForGrub2(gconfig);
5238		}
5239
5240	if (lrc == 2) printf("lilo\n");	const char *grubconfig = grubFindConfig(&grubConfigType);
5241	if (grc == 2) printf("grub\n");	if (!access(grubconfig, F_OK)) {
5242		gconfig = readConfig(grubconfig, &grubConfigType);
5243		if (!gconfig)
5244		grc = 1;
5245		else
5246		grc = checkForGrub(gconfig);
5247		}
5248
5249	return 0;	if (!access(liloConfigType.defaultConfig, F_OK)) {
5250	}	lconfig =
5251		readConfig(liloConfigType.defaultConfig,
5252		&liloConfigType);
5253		if (!lconfig)
5254		lrc = 1;
5255		else
5256		lrc = checkForLilo(lconfig);
5257		}
5258
5259	config = readConfig(grubConfig, cfi);	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5260	if (!config) return 1;	econfig = readConfig(eliloConfigType.defaultConfig,
5261		&eliloConfigType);
5262		if (!econfig)
5263		erc = 1;
5264		else
5265		erc = checkForElilo(econfig);
5266		}
5267
5268	if (displayDefault) {	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5269	struct singleLine * line;	lconfig =
5270	struct singleEntry * entry;	readConfig(extlinuxConfigType.defaultConfig,
5271	char * rootspec;	&extlinuxConfigType);
5272		if (!lconfig)
5273	if (config->defaultImage == -1) return 0;	extrc = 1;
5274	entry = findEntryByIndex(config, config->defaultImage);	else
5275	if (!entry) return 0;	extrc = checkForExtLinux(lconfig);
5276	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));
5277
5278	return 0;	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5279	} else if (kernelInfo)	yconfig = readConfig(yabootConfigType.defaultConfig,
5280	return displayInfo(config, kernelInfo, bootPrefix);	&yabootConfigType);
5281		if (!yconfig)
5282		yrc = 1;
5283		else
5284		yrc = checkForYaboot(yconfig);
5285		}
5286
5287	if (copyDefault) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5288	template = findTemplate(config, bootPrefix, NULL, 0, flags);	|| erc == 1)
5289	if (!template) return 1;	return 1;
5290	}
5291		if (lrc == 2)
5292		printf("lilo\n");
5293		if (gr2c == 2)
5294		printf("grub2\n");
5295		if (grc == 2)
5296		printf("grub\n");
5297		if (extrc == 2)
5298		printf("extlinux\n");
5299		if (yrc == 2)
5300		printf("yaboot\n");
5301		if (erc == 2)
5302		printf("elilo\n");
5303
5304		return 0;
5305		}
5306
5307		if (grubConfig == NULL) {
5308		printf("Could not find bootloader configuration file.\n");
5309		exit(1);
5310		}
5311
5312	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5313	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5314	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5315	bootPrefix, flags);
5316	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5317	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5318	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5319	if (addNewKernel(config, template, bootPrefix, newKernelPath,	char *rootspec;
5320	newKernelTitle, newKernelArgs, newKernelInitrd,
5321	newMBKernel, newMBKernelArgs)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5322		return 0;
5323		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5324	if (numEntries(config) == 0) {	cfi->defaultIsSaved)
5325	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	config->defaultImage = FIRST_ENTRY_INDEX;
5326	"Not writing out new config.\n"));	entry = findEntryByIndex(config, config->defaultImage);
5327	return 1;	if (!entry)
5328	}	return 0;
5329		if (!suitableImage(entry, bootPrefix, 0, flags))
5330		return 0;
5331
5332		line =
5333		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5334		LT_KERNEL_16, entry->lines);
5335		if (!line)
5336		return 0;
5337
5338		rootspec = getRootSpecifier(line->elements[1].item);
5339		printf("%s%s\n", bootPrefix, line->elements[1].item +
5340		((rootspec != NULL) ? strlen(rootspec) : 0));
5341
5342		return 0;
5343
5344		} else if (displayDefaultTitle) {
5345		struct singleLine *line;
5346		struct singleEntry *entry;
5347
5348		if (config->defaultImage == NO_DEFAULT_ENTRY)
5349		return 0;
5350		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5351		cfi->defaultIsSaved)
5352		config->defaultImage = FIRST_ENTRY_INDEX;
5353		entry = findEntryByIndex(config, config->defaultImage);
5354		if (!entry)
5355		return 0;
5356
5357		if (!configureGrub2) {
5358		char *title;
5359		line = getLineByType(LT_TITLE, entry->lines);
5360		if (!line)
5361		return 0;
5362		title = extractTitle(config, line);
5363		if (!title)
5364		return 0;
5365		printf("%s\n", title);
5366		free(title);
5367		} else {
5368		char *title;
5369
5370		dbgPrintf
5371		("This is GRUB2, default title is embeded in menuentry\n");
5372		line = getLineByType(LT_MENUENTRY, entry->lines);
5373		if (!line)
5374		return 0;
5375		title = grub2ExtractTitle(line);
5376		if (title)
5377		printf("%s\n", title);
5378		}
5379		return 0;
5380
5381		} else if (displayDefaultIndex) {
5382		if (config->defaultImage == NO_DEFAULT_ENTRY)
5383		return 0;
5384		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5385		cfi->defaultIsSaved)
5386		config->defaultImage = FIRST_ENTRY_INDEX;
5387		printf("%i\n", config->defaultImage);
5388		return 0;
5389
5390		} else if (kernelInfo)
5391		return displayInfo(config, kernelInfo, bootPrefix);
5392
5393		if (copyDefault) {
5394		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5395		if (!template)
5396		return 1;
5397		}
5398
5399		markRemovedImage(config, removeKernelPath, bootPrefix);
5400		markRemovedImage(config, removeMBKernel, bootPrefix);
5401		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5402		makeDefault, bootPrefix, flags, defaultIndex,
5403		newIndex);
5404		setFallbackImage(config, newKernelPath != NULL);
5405		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5406		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5407		return 1;
5408		if (updateKernelPath && newKernelInitrd) {
5409		if (newMBKernel) {
5410		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5411		bootPrefix, newKernelInitrd,
5412		newKernelTitle))
5413		return 1;
5414		} else {
5415		if (updateInitrd(config, updateKernelPath, bootPrefix,
5416		newKernelInitrd, newKernelTitle))
5417		return 1;
5418		}
5419		}
5420		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5421		newKernelTitle, newKernelArgs, newKernelInitrd,
5422		(const char **)extraInitrds, extraInitrdCount,
5423		newMBKernel, newMBKernelArgs, newDevTreePath,
5424		newIndex))
5425		return 1;
5426
5427		if (numEntries(config) == 0) {
5428		fprintf(stderr,
5429		_("grubby: doing this would leave no kernel entries. "
5430		"Not writing out new config.\n"));
5431		return 1;
5432		}
5433
5434	if (!outputFile)	if (!outputFile)
5435	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5436
5437	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5438	}	}

---

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Legend: Removed from v.532   changed lines   Added in v.3135