Diff of /trunk/grubby/grubby.c

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	trunk/mkinitrd-magellan/grubby/grubby.c revision 1156 by niro, Tue Sep 14 19:47:52 2010 UTC	trunk/grubby/grubby.c revision 3025 by niro, Tue Jun 27 14:42:27 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41		#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43		#endif
44
45	#if DEBUG	#if DEBUG
46	#define dbgPrintf(format, args...) fprintf(stderr, format , ## args)	#define dbgPrintf(format, args...) fprintf(stderr, format , ## args)
#	Line 44	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51		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 */	#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 {	enum lineType_e {
78	LT_WHITESPACE = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE      = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL     = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD     = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER      = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT    = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE   = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT       = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK   = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT       = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT   = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA        = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER      = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC    = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_UNKNOWN    = 1 << 15,	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)
#	Line 99  struct singleEntry {	Line 128  struct singleEntry {
128	#define NEED_TITLE   (1 << 2)	#define NEED_TITLE   (1 << 2)
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#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;	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 mbHyperFirst;	int defaultSupportSaved;
168	int mbInitRdIsModule;	int defaultIsSaved;
169	int mbConcatArgs;	int defaultIsUnquoted;
170	int mbAllowExtraInitRds;	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	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{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	1,                                      /* mbHyperFirst */	.titlePosition = 1,
230	1,                                      /* mbInitRdIsModule */	};
231	0,                                      /* mbConcatArgs */
232	1,                                      /* mbAllowExtraInitRds */	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[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{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[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	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	eliloKeywords,    /* 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 */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	1,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
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 */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
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 */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	1,                                      /* mbAllowExtraInitRds */
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 */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
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 */
	0,    /* maxTitleLength */
	1,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	"/boot/extlinux/extlinux.conf",         /* defaultConfig */	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	extlinuxKeywords,                       /* keywords */	.keywords = extlinuxKeywords,
665	0,                                      /* defaultIsIndex */	.caseInsensitive = 1,
666	0,                                      /* defaultSupportSaved */	.entryStart = LT_TITLE,
667	LT_TITLE,                               /* entrySeparator */	.needsBootPrefix = 1,
668	1,                                      /* needsBootPrefix */	.maxTitleLength = 255,
669	0,                                      /* argsInQuotes */	.mbAllowExtraInitRds = 1,
670	255,                                    /* maxTitleLength */	.defaultIsUnquoted = 1,
671	0,                                      /* titleBracketed */	.titlePosition = 1,
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	1,                                      /* mbAllowExtraInitRds */
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void insertElement(struct singleLine * line,	struct configFileInfo *cfi);
704	const char * item, int insertHere,	static char *getRootSpecifier(char *str);
705	struct configFileInfo * cfi);	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	static void removeElement(struct singleLine * line, int removeHere);	static void insertElement(struct singleLine *line,
707	static struct keywordTypes * getKeywordByType(enum lineType_e type,	const char *item, int insertHere,
708	struct configFileInfo * cfi);	struct configFileInfo *cfi);
709	static enum lineType_e getTypeByKeyword(char * keyword,	static void removeElement(struct singleLine *line, int removeHere);
710	struct configFileInfo * cfi);	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	static struct singleLine * getLineByType(enum lineType_e type,	struct configFileInfo *cfi);
712	struct singleLine * line);	static enum lineType_e getTypeByKeyword(char *keyword,
713	static int checkForExtLinux(struct grubConfig * config);	struct configFileInfo *cfi);
714	struct singleLine * addLineTmpl(struct singleEntry * entry,	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * tmplLine,	struct singleLine *line);
716	struct singleLine * prevLine,	static int checkForExtLinux(struct grubConfig *config);
717	const char * val,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	struct configFileInfo * cfi);	struct singleLine *tmplLine,
719	struct singleLine *  addLine(struct singleEntry * entry,	struct singleLine *prevLine,
720	struct configFileInfo * cfi,	const char *val, struct configFileInfo *cfi);
721	enum lineType_e type, char * defaultIndent,	struct singleLine *addLine(struct singleEntry *entry,
722	const char * val);	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
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	int rc;
766		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 NULL;	return 0;
785	}	}
786
787	static char * getpathbyspec(char *device) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	if (!blkid)	struct configFileInfo *cfi)
789	blkid_get_cache(&blkid, NULL);	{
790		if (isEfi && cfi == &grub2ConfigType) {
791	return blkid_get_devname(blkid, device, NULL);	switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#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	static char * getuuidbydev(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	if (!blkid)	struct configFileInfo *cfi)
816	blkid_get_cache(&blkid, NULL);	{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818	return blkid_get_tag_value(blkid, "UUID", device);	if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822	}	}
823
824	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825	struct configFileInfo * cfi) {	{
826	struct keywordTypes * kw;	struct keywordTypes *kt = getKeywordByType(type, cfi);
827	for (kw = cfi->keywords; kw->key; kw++) {	if (kt)
828	if (!strcmp(keyword, kw->key))	return kt->key;
829	return kw->type;	return "unknown";
	}
	return LT_UNKNOWN;
830	}	}
831
832	static struct singleLine * getLineByType(enum lineType_e type,	static char *getpathbyspec(char *device)
833	struct singleLine * line) {	{
834	dbgPrintf("getLineByType(%d): ", type);	if (!blkid)
835	for (; line; line = line->next) {	blkid_get_cache(&blkid, NULL);
836	dbgPrintf("%d:%s ", line->type,
837	line->numElements ? line->elements[0].item : "(empty)");	return blkid_get_devname(blkid, device, NULL);
	if (line->type & type) break;
	}
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
838	}	}
839
840	static int isBracketedTitle(struct singleLine * line) {	static char *getuuidbydev(char *device)
841	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
842	int len = strlen(line->elements[0].item);	if (!blkid)
843	if (*(line->elements[0].item + len - 1) == ']') {	blkid_get_cache(&blkid, NULL);
844	/* FIXME: this is a hack... */
845	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return blkid_get_tag_value(blkid, "UUID", device);
	return 1;
	}
	}
	}
	return 0;
846	}	}
847
848	static int isEntrySeparator(struct singleLine * line,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
850	return line->type == cfi->entrySeparator || line->type == LT_OTHER ||	{
851	(cfi->titleBracketed && isBracketedTitle(line));	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	/* extract the title from within brackets (for zipl) */	static struct singleLine *getLineByType(enum lineType_e type,
859	static char * extractTitle(struct singleLine * line) {	struct singleLine *line)
860	/* bracketed title... let's extract it (leaks a byte) */	{
861	char * title;	dbgPrintf("getLineByType(%d): ", type);
862	title = strdup(line->elements[0].item);	for (; line; line = line->next) {
863	title++;	dbgPrintf("%d:%s ", line->type,
864	*(title + strlen(title) - 1) = '\0';	line->numElements ? line->elements[0].
865	return title;	item : "(empty)");
866	}	if (line->type & type)
867		break;
868	static int readFile(int fd, char ** bufPtr) {	}
869	int alloced = 0, size = 0, i = 0;	dbgPrintf(line ? "\n" : " (failed)\n");
870	char * buf = NULL;	return line;
871		}
	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;
	}
872
873	buf = realloc(buf, size + 2);	static int isBracketedTitle(struct singleLine *line)
874	if (size == 0)	{
875	buf[size++] = '\n';	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	else	int len = strlen(line->elements[0].item);
877	if (buf[size - 1] != '\n')	if (*(line->elements[0].item + len - 1) == ']') {
878	buf[size++] = '\n';	/* FIXME: this is a hack... */
879	buf[size] = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885		}
886
887	*bufPtr = buf;	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888		{
889		return line->type == cfi->entryStart || line->type == LT_OTHER ||
890		(cfi->titleBracketed && isBracketedTitle(line));
891		}
892
893	return 0;	/* extract the title from within brackets (for zipl) */
894		static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895		{
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	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
915	line->indent = NULL;	{
916	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
917	line->numElements = 0;	char *buf = NULL;
	line->next = NULL;
	}
	struct singleLine * lineDup(struct singleLine * line) {
	int i;
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
918
919	return newLine;	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	static void lineFree(struct singleLine * line) {	if (i < 0) {
928	int i;	fprintf(stderr, _("error reading input: %s\n"),
929		strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
935		if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
942
943	if (line->elements) free(line->elements);	return 0;
944	lineInit(line);	}
945
946		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	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	int i;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	if (fprintf(out, "%s", line->indent) == -1) return -1;	newLine->indent = strdup(line->indent);
960		newLine->next = NULL;
961		newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	for (i = 0; i < line->numElements; i++) {	for (int i = 0; i < newLine->numElements; i++) {
967	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fputc('"', out) == EOF) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	return newLine;
972	if (i < line->numElements - 1)	}
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	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	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
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	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
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	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* 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	line->type = LT_WHITESPACE;	element->indent = strndup(start, chptr - start);
1105	line->numElements = 0;	start = chptr;
	}
	} else {
	struct keywordTypes *kw;
1106
1107	kw = getKeywordByType(line->type, cfi);	line->numElements++;
1108		first = 0;
1109		}
1110
1111	/* space isn't the only separator, we need to split	if (!line->numElements)
1112	* elements up more	line->type = LT_WHITESPACE;
1113	*/	else {
1114	if (!isspace(kw->separatorChar)) {	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	int i;	if (line->type == LT_UNKNOWN) {
1116	char indent[2] = "";	/* zipl does [title] instead of something reasonable
1117	indent[0] = kw->separatorChar;	* like all the other boot loaders.  kind of ugly */
1118	for (i = 1; i < line->numElements; i++) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1119	char *p;	line->type = LT_TITLE;
	int j;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1120	}	}
	line->numElements += numNewElements;
1121
1122	p = line->elements[i].item;	/* this is awkward, but we need to be able to handle
1123	while (*p != '\0') {	* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125	while (*p != kw->separatorChar && *p != '\0') p++;	* with no elements (everything stored in the indent
1126	if (*p == '\0') {	*/
1127	break;	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	free(line->elements[i].indent);	line->type = LT_WHITESPACE;
1151	line->elements[i].indent = strdup(indent);	line->numElements = 0;
	*p++ = '\0';
	i++;
	line->elements[i].item = strdup(p);
	line->elements[i].indent = strdup("");
	p = line->elements[i].item;
1152	}	}
1153	}	} else if (line->type == LT_INITRD) {
1154	}	struct keywordTypes *kw;
	}
	}
1155
1156	return 0;	kw = getKeywordByType(line->type, cfi);
	}
1157
1158	static struct grubConfig * readConfig(const char * inName,	/* space isn't the only separator, we need to split
1159	struct configFileInfo * cfi) {	* elements up more
1160	int in;	*/
1161	char * incoming = NULL, * head;	if (!isspace(kw->separatorChar)) {
1162	int rc;	char indent[2] = "";
1163	int sawEntry = 0;	indent[0] = kw->separatorChar;
1164	int movedLine = 0;	for (int i = 1; i < line->numElements; i++) {
1165	struct grubConfig * cfg;	char *p;
1166	struct singleLine * last = NULL, * line, * defaultLine = NULL;	int numNewElements;
1167	char * end;
1168	struct singleEntry * entry = NULL;	numNewElements = 0;
1169	int i, len;	p = line->elements[i].item;
1170	char * buf;	while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172	if (!strcmp(inName, "-")) {	numNewElements++;
1173	in = 0;	p++;
1174	} else {	}
1175	if ((in = open(inName, O_RDONLY)) < 0) {	if (line->numElements +
1176	fprintf(stderr, _("error opening %s for read: %s\n"),	numNewElements >= elementsAlloced) {
1177	inName, strerror(errno));	elementsAlloced +=
1178	return NULL;	numNewElements + 5;
1179	}	line->elements =
1180	}	realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	rc = readFile(in, &incoming);	for (int j = line->numElements; j > i;
1187	close(in);	j--) {
1188	if (rc) return NULL;	line->elements[j +
1189		numNewElements] =
1190	head = incoming;	line->elements[j];
1191	cfg = malloc(sizeof(*cfg));	}
1192	cfg->primaryIndent = strdup("");	line->numElements += numNewElements;
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1193
1194	if (getNextLine(&head, line, cfi)) {	p = line->elements[i].item;
1195	free(line);	while (*p != '\0') {
	/* XXX memory leak of everything in cfg */
	return NULL;
	}
	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;
	}
1196
1197	entry->skip = 0;	while (*p != kw->separatorChar
1198	entry->multiboot = 0;	&& *p != '\0')
1199	entry->lines = NULL;	p++;
1200	entry->next = NULL;	if (*p == '\0') {
1201	}	break;
1202		}
1203	if (line->type == LT_DEFAULT && line->numElements == 2) {
1204	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	line->elements[i + 1].indent =
1205	defaultLine = line;	line->elements[i].indent;
1206		line->elements[i].indent =
1207	} else if (line->type == LT_KERNEL) {	strdup(indent);
1208	/* if by some freak chance this is multiboot and the "module"	*p++ = '\0';
1209	* lines came earlier in the template, make sure to use LT_HYPER	i++;
1210	* instead of LT_KERNEL now	line->elements[i].item =
1211	*/	strdup(p);
1212	if (entry->multiboot)	}
1213	line->type = LT_HYPER;	}
1214		}
1215	} else if (line->type == LT_MBMODULE) {	} else if (line->type == LT_SET_VARIABLE) {
1216	/* go back and fix the LT_KERNEL line to indicate LT_HYPER	/* and if it's a "set blah=" we need to split it
1217	* instead, now that we know this is a multiboot entry.	* yet a third way to avoid rhbz# XXX FIXME :/
1218	* This only applies to grub, but that's the only place we	*/
1219	* should find LT_MBMODULE lines anyway.	char *eq;
1220	*/	int l;
1221	struct singleLine * l;	int numElements = line->numElements;
1222	for (l = entry->lines; l; l = l->next) {	struct lineElement *newElements;
1223	if (l->type == LT_HYPER)	eq = strchr(line->elements[1].item, '=');
1224	break;	if (!eq)
1225	else if (l->type == LT_KERNEL) {	return 0;
1226	l->type = LT_HYPER;	l = eq - line->elements[1].item;
1227	break;	if (eq[1] != 0)
1228	}	numElements++;
1229	}	newElements = calloc(numElements,sizeof (*newElements));
1230	entry->multiboot = 1;	memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232	} else if (line->type == LT_HYPER) {	newElements[1].item =
1233	entry->multiboot = 1;	strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235	} else if (line->type == LT_FALLBACK && line->numElements == 2) {	*(eq++) = '\0';
1236	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);	newElements[2].item = strdup(eq);
1237	if (*end) cfg->fallbackImage = -1;	free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239	} else if (line->type == LT_TITLE && line->numElements > 1) {	newElements[2].indent = line->elements[1].indent;
1240	/* make the title a single argument (undoing our parsing) */	for (int i = 2; i < line->numElements; i++) {
1241	len = 0;	newElements[i+1].item = line->elements[i].item;
1242	for (i = 1; i < line->numElements; i++) {	newElements[i+1].indent =
1243	len += strlen(line->elements[i].item);	line->elements[i].indent;
1244	len += strlen(line->elements[i].indent);	}
1245	}	free(line->elements);
1246	buf = malloc(len + 1);	line->elements = newElements;
1247	*buf = '\0';	line->numElements = numElements;
1248		}
1249		}
1250
1251	for (i = 1; i < line->numElements; i++) {	return 0;
1252	strcat(buf, line->elements[i].item);	}
	free(line->elements[i].item);
1253
1254	if ((i + 1) != line->numElements) {	static int isnumber(const char *s)
1255	strcat(buf, line->elements[i].indent);	{
1256	free(line->elements[i].indent);	int i;
1257	}	for (i = 0; s[i] != '\0'; i++)
1258	}	if (s[i] < '0' || s[i] > '9')
1259		return 0;
1260	line->elements[1].indent =	return i;
1261	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 == '"')
	memmove(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';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	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);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1262
1263	if (sawEntry) {	static struct grubConfig *readConfig(const char *inName,
1264	if (!entry->lines)	struct configFileInfo *cfi)
1265	entry->lines = line;	{
1266	else	int in;
1267	last->next = line;	char *incoming = NULL, *head;
1268	dbgPrintf("readConfig added %d to %p\n", line->type, entry);	int rc;
1269		int sawEntry = 0;
1270		int movedLine = 0;
1271		struct grubConfig *cfg;
1272		struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273		char *end;
1274		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 {	} else {
1284	if (!cfg->theLines)	if ((in = open(inName, O_RDONLY)) < 0) {
1285	cfg->theLines = line;	fprintf(stderr, _("error opening %s for read: %s\n"),
1286	else	inName, strerror(errno));
1287	last->next = line;	return NULL;
1288	dbgPrintf("readConfig added %d to cfg\n", line->type);	}
1289	}	}
1290
1291	last = line;	rc = readFile(in, &incoming);
1292	}	close(in);
1293		if (rc)
1294	free(incoming);	return NULL;
1295
1296		head = incoming;
1297		cfg = malloc(sizeof(*cfg));
1298		cfg->primaryIndent = strdup("");
1299		cfg->secondaryIndent = strdup("\t");
1300		cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301		cfg->cfi = cfi;
1302		cfg->theLines = NULL;
1303		cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305		cfg->isModified = 0;
1306
1307		/* copy everything we have */
1308		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 (defaultLine) {	if (!sawEntry && line->numElements) {
1319	if (cfi->defaultSupportSaved &&	free(cfg->primaryIndent);
1320	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	cfg->primaryIndent = strdup(line->indent);
1321	cfg->defaultImage = DEFAULT_SAVED;	} else if (line->numElements) {
1322	} else if (cfi->defaultIsIndex) {	free(cfg->secondaryIndent);
1323	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);	cfg->secondaryIndent = strdup(line->indent);
1324	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++;
	entry = NULL;
	}
1325
1326	if (entry){	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	cfg->defaultImage = i;	sawEntry = 1;
1328	}else{	if (!entry) {
1329	cfg->defaultImage = -1;	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331	}	} else {
1332	} else {	entry->next = malloc(sizeof(*entry));
1333	cfg->defaultImage = 0;	entry = entry->next;
1334	}	}
1335
1336	return cfg;	entry->skip = 0;
1337	}	entry->multiboot = 0;
1338		entry->lines = NULL;
1339		entry->next = NULL;
1340		}
1341
1342	static void writeDefault(FILE * out, char * indent,	if (line->type == LT_SET_VARIABLE) {
1343	char * separator, struct grubConfig * cfg) {	dbgPrintf("found 'set' command (%d elements): ",
1344	struct singleEntry * entry;	line->numElements);
1345	struct singleLine * line;	dbgPrintf("%s", line->indent);
1346	int i;	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	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	} 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	if (cfg->defaultImage == DEFAULT_SAVED)	} else if (line->type == LT_HYPER) {
1387	fprintf(out, "%sdefault%ssaved\n", indent, separator);	entry->multiboot = 1;
	else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	} else {
	int image = cfg->defaultImage;
1388
1389	entry = cfg->entries;	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	while (entry && entry->skip) entry = entry->next;	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	i = 0;	for (int i = 1; i < line->numElements; i++) {
1409	while (entry && i < image) {	strcat(buf, line->elements[i].item);
1410	entry = entry->next;	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	while (entry && entry->skip) entry = entry->next;	line->elements[1].indent =
1419	i++;	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	if (!entry) return;	/* 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	line = getLineByType(LT_TITLE, entry->lines);	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	if (line && line->numElements >= 2)	/* get extras */
1466	fprintf(out, "%sdefault%s%s\n", indent, separator,	int count = 0;
1467	line->elements[1].item);	quote_char = '\0';
1468	else if (line && (line->numElements == 1) &&	for (int i = 0; i < line->numElements; i++) {
1469	cfg->cfi->titleBracketed) {	if (count >= 2) {
1470	fprintf(out, "%sdefault%s%s\n", indent, separator,	strcat(extras, line->elements[i].item);
1471	extractTitle(line));	strcat(extras,
1472	}	line->elements[i].indent);
1473	}	}
	}
	}
1474
1475	static int writeConfig(struct grubConfig * cfg, char * outName,	if (!strcmp
1476	const char * prefix) {	(line->elements[i].item, "menuentry"))
1477	FILE * out;	continue;
1478	struct singleLine * line;
1479	struct singleEntry * entry;	/* count ' or ", there should be two in menuentry line. */
1480	char * tmpOutName;	if (isquote(*line->elements[i].item)
1481	int needs = MAIN_DEFAULT;	&& quote_char == '\0') {
1482	struct stat sb;	/* ensure we properly pair off quotes */
1483	int i;	quote_char = *line->elements[i].item;
1484		count++;
1485	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 the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(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;
	}
	}
	}
1486
1487	line = cfg->theLines;	len = strlen(line->elements[i].item);
	while (line) {
	if (line->type == LT_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;
	}
	}
1488
1489	line = line->next;	if (line->elements[i].item[len - 1] ==
1490	}	quote_char)
1491		count++;
1492
1493	if (needs & MAIN_DEFAULT) {	/* ok, we get the final ' or ", others are extras. */
1494	writeDefault(out, cfg->primaryIndent, "=", cfg);	}
1495	needs &= ~MAIN_DEFAULT;	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	i = 0;	if (isquote(*line->elements[1].item))
1511	while ((entry = findEntryByIndex(cfg, i++))) {	memmove(line->elements[1].item,
1512	if (entry->skip) continue;	line->elements[1].item + 1,
1513		strlen(line->elements[1].item +
1514	line = entry->lines;	1) + 1);
1515	while (line) {
1516	if (lineWrite(out, line, cfg->cfi) == -1) {	last = line->numElements - 1;
1517	fprintf(stderr, _("grubby: error writing %s: %s\n"),	len = strlen(line->elements[last].item) - 1;
1518	tmpOutName, strerror(errno));	if (isquote(line->elements[last].item[len]))
1519	fclose(out);	line->elements[last].item[len] = '\0';
1520	unlink(tmpOutName);	}
1521	return 1;	}
	}
	line = line->next;
	}
	}
1522
1523	if (tmpOutName) {	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	if (rename(tmpOutName, outName)) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	defaultLine = line;
1526	tmpOutName, outName, strerror(errno));	}
	unlink(outName);
	return 1;
	}
	}
1527
1528	return 0;	/* 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	static int numEntries(struct grubConfig *cfg) {	/* If a second line of whitespace happens after a generic
1547	int i = 0;	* option which was moved, drop it. */
1548	struct singleEntry * entry;	if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550	entry = cfg->entries;	lineFree(line);
1551	while (entry) {	free(line);
1552	if (!entry->skip)	movedLine = 0;
1553	i++;	continue;
1554	entry = entry->next;	}
1555	}	movedLine = 0;
	return i;
	}
1556
1557	static char *findDiskForRoot()	if (sawEntry) {
1558	{	if (!entry->lines)
1559	int fd;	entry->lines = line;
1560	char buf[65536];	else
1561	char *devname;	last->next = line;
1562	char *chptr;	dbgPrintf("readConfig added %s to %p\n",
1563	int rc;	getKeyByType(line->type, cfi), entry);
1564
1565	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	/* we could have seen this outside of an entry... if
1566	fprintf(stderr, "grubby: failed to open %s: %s\n",	* so, we ignore it like any other line we don't grok
1567	_PATH_MOUNTED, strerror(errno));	*/
1568	return NULL;	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	rc = read(fd, buf, sizeof(buf) - 1);	last = line;
1580	if (rc <= 0) {	}
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/*
	* Move back 2, which is the first space after the device name, set
	* it to \0 so strdup will just get the devicename.
	*/
	chptr -= 2;
	*chptr = '\0';
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1581
1582	return NULL;	free(incoming);
	}
1583
1584	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585	int skipRemoved, int flags) {	if (defaultLine) {
1586	struct singleLine * line;	if (defaultLine->numElements > 2 &&
1587	char * fullName;	cfi->defaultSupportSaved &&
1588	int i;	!strncmp(defaultLine->elements[2].item,
1589	char * dev;	"\"${saved_entry}\"", 16)) {
1590	char * rootspec;	cfg->cfi->defaultIsSaved = 1;
1591	char * rootdev;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593	if (skipRemoved && entry->skip) return 0;	char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (defTitle) {
1596	if (!line || line->numElements < 2) return 0;	int index = 0;
1597		if (isnumber(defTitle)) {
1598	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	index = atoi(defTitle);
1599		entry =
1600	fullName = alloca(strlen(bootPrefix) +	findEntryByIndex(cfg,
1601	strlen(line->elements[1].item) + 1);	index);
1602	rootspec = getRootSpecifier(line->elements[1].item);	} else {
1603	sprintf(fullName, "%s%s", bootPrefix,	entry =
1604	line->elements[1].item + (rootspec ? strlen(rootspec) : 0));	findEntryByTitle(cfg,
1605	if (access(fullName, R_OK)) return 0;	defTitle,
1606		&index);
1607	for (i = 2; i < line->numElements; i++)	}
1608	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (entry)
1609	if (i < line->numElements) {	cfg->defaultImage = index;
1610	dev = line->elements[i].item + 5;	}
1611	} else {	}
1612	/* look for a lilo style LT_ROOT line */	} else if (cfi->defaultIsVariable) {
1613	line = getLineByType(LT_ROOT, entry->lines);	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 (line && line->numElements >= 2) {	if (entry) {
1674	dev = line->elements[1].item;	cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692	} else {	} else {
1693	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	cfg->defaultImage = FIRST_ENTRY_INDEX;
	* grub+multiboot uses LT_MBMODULE for the args, so check that too.
	*/
	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);
	/* 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;
	}
1694	}	}
	}
1695
1696	dev = getpathbyspec(dev);	return cfg;
1697	if (!dev)	}
	return 0;
1698
1699	rootdev = findDiskForRoot();	static void writeDefault(FILE * out, char *indent,
1700	if (!rootdev)	char *separator, struct grubConfig *cfg)
1701	return 0;	{
1702		struct singleEntry *entry;
1703		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		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	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	while (entry && entry->skip)
1760	free(rootdev);	entry = entry->next;
1761	return 0;	i++;
1762	}	}
1763
1764		if (!entry)
1765		return;
1766
1767	free(rootdev);	line = getLineByType(LT_TITLE, entry->lines);
1768
1769	return 1;	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	/* returns the first match on or after the one pointed to by index (if index	static int writeConfig(struct grubConfig *cfg, char *outName,
1786	is not NULL) which is not marked as skip */	const char *prefix)
1787	struct singleEntry * findEntryByPath(struct grubConfig * config,	{
1788	const char * kernel, const char * prefix,	FILE *out;
1789	int * index) {	struct singleLine *line;
1790	struct singleEntry * entry = NULL;	struct singleEntry *entry;
1791	struct singleLine * line;	char *tmpOutName;
1792	int i;	int needs = MAIN_DEFAULT;
1793	char * chptr;	struct stat sb;
1794	char * rootspec = NULL;	int i;
1795	enum lineType_e checkType = LT_KERNEL;
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824	if (isdigit(*kernel)) {	outName = buf;
1825	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	outName[rc] = '\0';
1826		}
1827
1828	i = 0;	tmpOutName = alloca(strlen(outName) + 2);
1829	indexVars[i] = strtol(kernel, &chptr, 10);	sprintf(tmpOutName, "%s-", outName);
1830	while (*chptr == ',') {	out = fopen(tmpOutName, "w");
1831	i++;	if (!out) {
1832	kernel = chptr + 1;	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833	indexVars[i] = strtol(kernel, &chptr, 10);	tmpOutName, strerror(errno));
1834		return 1;
1835		}
1836
1837		if (!stat(outName, &sb)) {
1838		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850		line = cfg->theLines;
1851		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852		while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881		line = line->next;
1882	}	}
1883
1884	if (*chptr) {	if (needs & MAIN_DEFAULT) {
1885	/* can't parse it, bail */	writeDefault(out, cfg->primaryIndent, "=", cfg);
1886	return NULL;	needs &= ~MAIN_DEFAULT;
1887	}	}
1888
	indexVars[i + 1] = -1;
1889	i = 0;	i = 0;
1890	if (index) {	while ((entry = findEntryByIndex(cfg, i++))) {
1891	while (i < *index) i++;	if (entry->skip)
1892	if (indexVars[i] == -1) return NULL;	continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906	}	}
1907
1908	entry = findEntryByIndex(config, indexVars[i]);	if (tmpOutName) {
1909	if (!entry) return NULL;	if (rename(tmpOutName, outName)) {
1910		fprintf(stderr,
1911		_("grubby: error moving %s to %s: %s\n"),
1912		tmpOutName, outName, strerror(errno));
1913		unlink(outName);
1914		return 1;
1915		}
1916		}
1917
1918	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	return 0;
1919	if (!line) return NULL;	}
1920
1921	if (index) *index = indexVars[i];	static int numEntries(struct grubConfig *cfg)
1922	return entry;	{
1923	}	int i = 0;
1924		struct singleEntry *entry;
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
	} else {
	entry = findEntryByIndex(config, config->defaultImage);
	if (entry && entry->skip)
	entry = NULL;
	else if (index)
	*index = config->defaultImage;
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
1925
1926	while ((entry = findEntryByIndex(config, i))) {	entry = cfg->entries;
1927	if (!entry->skip) break;	while (entry) {
1928	i++;	if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931	}	}
1932		return i;
1933		}
1934
1935	if (entry && index)	static char *findDiskForRoot()
1936	*index = i;	{
1937	} else {	int fd;
1938	if (index)	char buf[65536];
1939	i = *index;	char *devname;
1940	else	char *chptr;
1941	i = 0;	int rc;
1942
1943	if (!strncmp(kernel, "TITLE=", 6)) {	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944	prefix = "";	fprintf(stderr, "grubby: failed to open %s: %s\n",
1945	checkType = LT_TITLE;	_PATH_MOUNTED, strerror(errno));
1946	kernel += 6;	return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955	}	}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *foundanswer = NULL;
	if (entry->skip) continue;
1961
1962	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	while (chptr && chptr != buf + rc) {
1963		devname = chptr;
1964
1965		/*
1966		* The first column of a mtab entry is the device, but if the
1967		* entry is a special device it won't start with /, so move
1968		* on to the next line.
1969		*/
1970		if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977	/* check all the lines matching checkType */	/* Seek to the next space */
1978	for (line = entry->lines; line; line = line->next) {	chptr = strchr(chptr, ' ');
1979	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	if (!chptr) {
1980	LT_KERNEL|LT_MBMODULE|LT_HYPER :	fprintf(stderr, "grubby: error parsing %s: %s\n",
1981	checkType, line);	_PATH_MOUNTED, strerror(errno));
1982	if (!line) break;  /* not found in this entry */	return NULL;
1983		}
1984
1985	if (line && line->numElements >= 2) {	/*
1986	rootspec = getRootSpecifier(line->elements[1].item);	* The second column of a mtab entry is the mount point, we
1987	if (!strcmp(line->elements[1].item +	* are looking for '/' obviously.
1988	((rootspec != NULL) ? strlen(rootspec) : 0),	*/
1989	kernel + strlen(prefix)))	if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990	break;	/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992	}	}
	}
1993
1994	/* make sure this entry has a kernel identifier; this skips	/* Next line */
1995	* non-Linux boot entries (could find netbsd etc, though, which is	chptr = strchr(chptr, '\n');
1996	* unfortunate)	if (chptr)
1997	*/	chptr++;
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
1998	}	}
1999
2000	if (index) *index = i;	/* Return the last / entry found */
2001	}	if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007	return entry;	return NULL;
2008	}	}
2009
2010	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	void printEntry(struct singleEntry *entry, FILE * f)
2011	struct singleEntry * entry;	{
2012		int i;
2013		struct singleLine *line;
2014
2015	entry = cfg->entries;	for (line = entry->lines; line; line = line->next) {
2016	while (index && entry) {	log_message(f, "DBG: %s", line->indent);
2017	entry = entry->next;	for (i = 0; i < line->numElements; i++) {
2018	index--;	/* Need to handle this, because we strip the quotes from
2019	}	* menuentry when read it. */
2020		if (line->type == LT_MENUENTRY && i == 1) {
2021		if (!isquote(*line->elements[i].item))
2022		log_message(f, "\'%s\'",
2023		line->elements[i].item);
2024		else
2025		log_message(f, "%s",
2026		line->elements[i].item);
2027		log_message(f, "%s", line->elements[i].indent);
2028
2029	return entry;	continue;
2030	}	}
2031
2032	/* Find a good template to use for the new kernel. An entry is	log_message(f, "%s%s",
2033	* good if the kernel and mkinitrd exist (even if the entry	line->elements[i].item,
2034	* is going to be removed). Try and use the default entry, but	line->elements[i].indent);
2035	* if that doesn't work just take the first. If we can't find one,	}
2036	* bail. */	log_message(f, "\n");
	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,
	int * indexPtr, int skipRemoved, int flags) {
	struct singleEntry * entry, * entry2;
	int index;
	if (cfg->defaultImage > -1) {
	entry = findEntryByIndex(cfg, cfg->defaultImage);
	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
	if (indexPtr) *indexPtr = cfg->defaultImage;
	return entry;
2037	}	}
2038	}	}
2039
2040		void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042		{
2043		static int once;
2044		va_list argp, argq;
2045
2046	index = 0;	va_start(argp, fmt);
	while ((entry = findEntryByIndex(cfg, index))) {
	if (suitableImage(entry, prefix, skipRemoved, flags)) {
	int j;
	for (j = 0; j < index; j++) {
	entry2 = findEntryByIndex(cfg, j);
	if (entry2->skip) index--;
	}
	if (indexPtr) *indexPtr = index;
2047
2048	return entry;	va_copy(argq, argp);
2049		if (!once) {
2050		log_time(NULL);
2051		log_message(NULL, "command line: %s\n", saved_command_line);
2052	}	}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057	index++;	printEntry(entry, NULL);
2058	}	va_end(argq);
2059
2060	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071	return NULL;	if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079	}	}
2080
2081	char * findBootPrefix(void) {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	struct stat sb, sb2;
2082
2083	stat("/", &sb);	static int endswith(const char *s, char c)
2084	#ifdef __ia64__	{
2085	stat("/boot/efi/EFI/redhat/", &sb2);	int slen;
	#else
	stat("/boot", &sb2);
	#endif
2086
2087	if (sb.st_dev == sb2.st_dev)	if (!s || !s[0])
2088	return strdup("");	return 0;
2089		slen = strlen(s) - 1;
2090
2091	#ifdef __ia64__	return s[slen] == c;
	return strdup("/boot/efi/EFI/redhat/");
	#else
	return strdup("/boot");
	#endif
2092	}	}
2093
2094	void markRemovedImage(struct grubConfig * cfg, const char * image,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	const char * prefix) {	int skipRemoved, int flags)
2096	struct singleEntry * entry;	{
2097		struct singleLine *line;
2098	if (!image) return;	char *fullName;
2099		int i;
2100	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	char *dev;
2101	entry->skip = 1;	char *rootspec;
2102	}	char *rootdev;
2103
2104	void setDefaultImage(struct grubConfig * config, int hasNew,	if (skipRemoved && entry->skip) {
2105	const char * defaultKernelPath, int newIsDefault,	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	const char * prefix, int flags) {	return 0;
2107	struct singleEntry * entry, * entry2, * newDefault;	}
2108	int i, j;
2109		line =
2110	if (newIsDefault) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111	config->defaultImage = 0;	entry->lines);
2112	return;	if (!line) {
2113	} else if (defaultKernelPath) {	notSuitablePrintf(entry, 0, "no line found\n");
2114	i = 0;	return 0;
2115	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	}
2116	config->defaultImage = i;	if (line->numElements < 2) {
2117	} else {	notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118	config->defaultImage = -1;	line->numElements);
2119	return;	return 0;
2120	}	}
	}
2121
2122	/* defaultImage now points to what we'd like to use, but before any order	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	changes */	notSuitablePrintf(entry, 1, "\n");
2124	if (config->defaultImage == DEFAULT_SAVED)	return 1;
2125	/* default is set to saved, we don't want to change it */	}
	return;
	if (config->defaultImage > -1)
	entry = findEntryByIndex(config, config->defaultImage);
	else
	entry = NULL;
2126
2127	if (entry && !entry->skip) {	fullName = alloca(strlen(bootPrefix) +
2128	/* we can preserve the default */	strlen(line->elements[1].item) + 1);
2129	if (hasNew)	rootspec = getRootSpecifier(line->elements[1].item);
2130	config->defaultImage++;	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132	/* count the number of entries erased before this one */	beginswith(line->elements[1].item + rootspec_offset, '/');
2133	for (j = 0; j < config->defaultImage; j++) {	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134	entry2 = findEntryByIndex(config, j);	line->elements[1].item + rootspec_offset);
2135	if (entry2->skip) config->defaultImage--;	if (access(fullName, R_OK)) {
2136	}	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137	} else if (hasNew) {	return 0;
2138	config->defaultImage = 0;	}
2139	} else {	for (i = 2; i < line->numElements; i++)
2140	/* Either we just erased the default (or the default line was bad	if (!strncasecmp(line->elements[i].item, "root=", 5))
2141	* to begin with) and didn't put a new one in. We'll use the first	break;
2142	* valid image. */	if (i < line->numElements) {
2143	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,	dev = line->elements[i].item + 5;
2144	flags);	} else {
2145	if (!newDefault)	/* look for a lilo style LT_ROOT line */
2146	config->defaultImage = -1;	line = getLineByType(LT_ROOT, entry->lines);
	}
	}
2147
2148	void setFallbackImage(struct grubConfig * config, int hasNew) {	if (line && line->numElements >= 2) {
2149	struct singleEntry * entry, * entry2;	dev = line->elements[1].item;
2150	int j;	} else {
2151		/* didn't succeed in finding a LT_ROOT, let's try
2152	if (config->fallbackImage == -1) return;	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153		* for the args, so check that too.
2154	entry = findEntryByIndex(config, config->fallbackImage);	*/
2155	if (!entry || entry->skip) {	line =
2156	config->fallbackImage = -1;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157	return;	entry->lines);
2158	}
2159		/* failed to find one */
2160		if (!line) {
2161		notSuitablePrintf(entry, 0, "no line found\n");
2162		return 0;
2163		}
2164
2165	if (hasNew)	for (i = 1; i < line->numElements; i++)
2166	config->fallbackImage++;	if (!strncasecmp
2167		(line->elements[i].item, "root=", 5))
2168	/* count the number of entries erased before this one */	break;
2169	for (j = 0; j < config->fallbackImage; j++) {	if (i < line->numElements)
2170	entry2 = findEntryByIndex(config, j);	dev = line->elements[i].item + 5;
2171	if (entry2->skip) config->fallbackImage--;	else {
2172	}	notSuitablePrintf(entry, 0,
2173		"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178		}
2179
2180		dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188		rootdev = findDiskForRoot();
2189		if (!rootdev) {
2190		notSuitablePrintf(entry, 0, "can't find root device\n");
2191		return 0;
2192		}
2193
2194		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195		notSuitablePrintf(entry, 0,
2196		"uuid missing: rootdev %s, dev %s\n",
2197		getuuidbydev(rootdev), getuuidbydev(dev));
2198		free(rootdev);
2199		return 0;
2200		}
2201
2202		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203		notSuitablePrintf(entry, 0,
2204		"uuid mismatch: rootdev %s, dev %s\n",
2205		getuuidbydev(rootdev), getuuidbydev(dev));
2206		free(rootdev);
2207		return 0;
2208		}
2209
2210		free(rootdev);
2211		notSuitablePrintf(entry, 1, "\n");
2212
2213		return 1;
2214	}	}
2215
2216	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* returns the first match on or after the one pointed to by index (if index
2217	struct singleLine * line;	is not NULL) which is not marked as skip */
2218	char * root = NULL;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	int i;	const char *kernel, const char *prefix,
2220		int *index)
2221	printf("index=%d\n", index);	{
2222		struct singleEntry *entry = NULL;
2223	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	struct singleLine *line;
2224	if (!line) {	int i;
2225	printf("non linux entry\n");	char *chptr;
2226	return;	char *rootspec = NULL;
2227	}	enum lineType_e checkType = LT_KERNEL;
2228
2229		if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	printf("kernel=%s\n", line->elements[1].item);	if (*chptr) {
2241		/* can't parse it, bail */
2242		return NULL;
2243		}
2244
2245	if (line->numElements >= 3) {	indexVars[i + 1] = -1;
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2246
2247	i++;	i = 0;
2248	}	if (index) {
2249	printf("\"\n");	while (i < *index) {
2250	} else {	i++;
2251	line = getLineByType(LT_KERNELARGS, entry->lines);	if (indexVars[i] == -1)
2252	if (line) {	return NULL;
2253	char * s;	}
2254		}
2255
2256	printf("args=\"");	entry = findEntryByIndex(config, indexVars[i]);
2257	i = 1;	if (!entry)
2258	while (i < line->numElements) {	return NULL;
2259	if (!strncmp(line->elements[i].item, "root=", 5)) {
2260	root = line->elements[i].item + 5;	line =
2261		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262		LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269		}
2270
2271		if (!strcmp(kernel, "DEFAULT")) {
2272		if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274	} else {	} else {
2275	s = line->elements[i].item;	entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287		while ((entry = findEntryByIndex(config, i))) {
2288		if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	printf("%s%s", s, line->elements[i].indent);	if (entry && index)
2294		*index = i;
2295		} else {
2296		if (index)
2297		i = *index;
2298		else
2299		i = 0;
2300
2301		if (!strncmp(kernel, "TITLE=", 6)) {
2302		prefix = "";
2303		checkType = LT_TITLE | LT_MENUENTRY;
2304		kernel += 6;
2305	}	}
2306
2307	i++;	for (entry = findEntryByIndex(config, i); entry;
2308	}	entry = entry->next, i++) {
2309		if (entry->skip)
2310		continue;
2311
2312		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313		checkType, kernel, entry);
2314
2315		/* check all the lines matching checkType */
2316		for (line = entry->lines; line; line = line->next) {
2317		enum lineType_e ct = checkType;
2318		if (entry->multiboot && checkType == LT_KERNEL)
2319		ct = LT_KERNEL | LT_KERNEL_EFI |
2320		LT_MBMODULE | LT_HYPER |
2321		LT_KERNEL_16;
2322		else if (checkType & LT_KERNEL)
2323		ct = checkType | LT_KERNEL_EFI |
2324		LT_KERNEL_16;
2325		line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346		/* make sure this entry has a kernel identifier; this skips
2347		* non-Linux boot entries (could find netbsd etc, though, which is
2348		* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357	s = line->elements[i - 1].indent;	if (index)
2358	printf("\"\n");	*index = i;
2359	}	}
	}
2360
2361	if (!root) {	return entry;
2362	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2363
2364	if (root) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	char * s = alloca(strlen(root) + 1);	int *index)
2366		{
2367	strcpy(s, root);	struct singleEntry *entry;
2368	if (s[strlen(s) - 1] == '"')	struct singleLine *line;
2369	s[strlen(s) - 1] = '\0';	int i;
2370	/* make sure the root doesn't have a trailing " */	char *newtitle;
2371	printf("root=%s\n", s);
2372	}	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373		if (index && i < *index)
2374		continue;
2375		line = getLineByType(LT_TITLE, entry->lines);
2376		if (!line)
2377		line = getLineByType(LT_MENUENTRY, entry->lines);
2378		if (!line)
2379		continue;
2380		newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382		continue;
2383		if (!strcmp(title, newtitle))
2384		break;
2385		}
2386
2387	line = getLineByType(LT_INITRD, entry->lines);	if (!entry)
2388		return NULL;
2389
2390	if (line && line->numElements >= 2) {	if (index)
2391	printf("initrd=%s", prefix);	*index = i;
2392	for (i = 1; i < line->numElements; i++)	return entry;
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2393	}	}
2394
2395	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	FILE * in;	{
2397	char buf[1024];	struct singleEntry *entry;
	char * chptr;
	char * start;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	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);
	}
	fclose(in);
2398
2399	return 0;	entry = cfg->entries;
2400	}	while (index && entry) {
2401		entry = entry->next;
2402		index--;
2403		}
2404
2405	void dumpSysconfigGrub(void) {	return entry;
	char * boot;
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
2406	}	}
2407
2408	int displayInfo(struct grubConfig * config, char * kernel,	/* Find a good template to use for the new kernel. An entry is
2409	const char * prefix) {	* good if the kernel and mkinitrd exist (even if the entry
2410	int i = 0;	* is going to be removed). Try and use the default entry, but
2411	struct singleEntry * entry;	* if that doesn't work just take the first. If we can't find one,
2412	struct singleLine * line;	* bail. */
2413		struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	entry = findEntryByPath(config, kernel, prefix, &i);	int *indexPtr, int skipRemoved, int flags)
2415	if (!entry) {	{
2416	fprintf(stderr, _("grubby: kernel not found\n"));	struct singleEntry *entry, *entry2;
2417	return 1;	int index;
	}
2418
2419	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (cfg->cfi->defaultIsSaved) {
2420	be a better way */	if (cfg->cfi->getEnv) {
2421	if (config->cfi == &grubConfigType) {	char *defTitle =
2422	dumpSysconfigGrub();	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423	} else {	if (defTitle) {
2424	line = getLineByType(LT_BOOT, config->theLines);	int index = 0;
2425	if (line && line->numElements >= 1) {	if (isnumber(defTitle)) {
2426	printf("boot=%s\n", line->elements[1].item);	index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
2451
2452	line = getLineByType(LT_LBA, config->theLines);	index = 0;
2453	if (line) printf("lba\n");	while ((entry = findEntryByIndex(cfg, index))) {
2454	}	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455		int j, unmodifiedIndex;
2456	displayEntry(entry, prefix, i);
2457		unmodifiedIndex = index;
2458	i++;
2459	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	for (j = 0; j < unmodifiedIndex; j++) {
2460	displayEntry(entry, prefix, i);	entry2 = findEntryByIndex(cfg, j);
2461	i++;	if (entry2->skip)
2462	}	index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return 0;	return entry;
2468	}	}
2469
2470	struct singleLine * addLineTmpl(struct singleEntry * entry,	index++;
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi)
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[1]
	*/
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
2471	}	}
	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
2472
2473	if (!entry->lines) {	fprintf(stderr,
2474	/* first one on the list */	_("grubby fatal error: unable to find a suitable template\n"));
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2475
2476	return newLine;	return NULL;
2477	}	}
2478
2479	/* val may be NULL */	char *findBootPrefix(void)
2480	struct singleLine *  addLine(struct singleEntry * entry,	{
2481	struct configFileInfo * cfi,	struct stat sb, sb2;
	enum lineType_e type, char * defaultIndent,
	const char * val) {
	struct singleLine * line, * prev;
	struct keywordTypes * kw;
	struct singleLine tmpl;
	/* NB: This function shouldn't allocate items on the heap, rather on the
	* stack since it calls addLineTmpl which will make copies.
	*/
	if (type == LT_TITLE && cfi->titleBracketed) {
	/* we're doing a bracketed title (zipl) */
	tmpl.type = type;
	tmpl.numElements = 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements));
	tmpl.elements[0].item = alloca(strlen(val)+3);
	sprintf(tmpl.elements[0].item, "[%s]", val);
	tmpl.elements[0].indent = "";
	val = NULL;
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) abort();
	tmpl.type = type;
	tmpl.numElements = val ? 2 : 1;
	tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements);
	tmpl.elements[0].item = kw->key;
	tmpl.elements[0].indent = alloca(2);
	sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
	if (val) {
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = "";
	}
	}
2482
2483	/* The last non-empty line gives us the indention to us and the line	stat("/", &sb);
2484	to insert after. Note that comments are considered empty lines, which	#ifdef __ia64__
2485	may not be ideal? If there are no lines or we are looking at the	stat("/boot/efi/EFI/redhat/", &sb2);
2486	first line, we use defaultIndent (the first line is normally indented	#else
2487	differently from the rest) */	stat("/boot", &sb2);
2488	for (line = entry->lines, prev = NULL; line; line = line->next) {	#endif
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
2489
2490	if (prev == entry->lines)	if (sb.st_dev == sb2.st_dev)
2491	tmpl.indent = defaultIndent ?: "";	return strdup("");
	else
	tmpl.indent = prev->indent;
2492
2493	return addLineTmpl(entry, &tmpl, prev, val, cfi);	#ifdef __ia64__
2494		return strdup("/boot/efi/EFI/redhat/");
2495		#else
2496		return strdup("/boot");
2497		#endif
2498	}	}
2499
2500	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	struct singleLine * prev;	const char *prefix)
2502	int i;	{
2503		struct singleEntry *entry;
2504
2505	for (i = 0; i < line->numElements; i++) {	if (!image)
2506	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2507
2508	if (line == entry->lines) {	/* check and see if we're removing the default image */
2509	entry->lines = line->next;	if (isdigit(*image)) {
2510	} else {	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	prev = entry->lines;	if (entry)
2512	while (prev->next != line) prev = prev->next;	entry->skip = 1;
2513	prev->next = line->next;	return;
2514	}	}
2515
2516	free(line);	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517		entry->skip = 1;
2518	}	}
2519
2520	static void insertElement(struct singleLine * line,	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	const char * item, int insertHere,	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	struct configFileInfo * cfi)	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524	{	{
2525	struct keywordTypes * kw;	struct singleEntry *bootEntry, *newDefault;
2526	char indent[2] = "";	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
2527
2528	/* sanity check */	/* handle the two cases where the user explictly picks the default
2529	if (insertHere > line->numElements) {	* boot entry index as it would exist post-modification */
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
2530
2531	line->elements = realloc(line->elements, (line->numElements + 1) *	/* Case 1: user chose to make the latest boot entry the default */
2532	sizeof(*line->elements));	if (newBootEntryIsDefault) {
2533	memmove(&line->elements[insertHere+1],	config->defaultImage = newBootEntryIndex;
2534	&line->elements[insertHere],	return;
2535	(line->numElements - insertHere) *	}
2536	sizeof(*line->elements));
2537	line->elements[insertHere].item = strdup(item);	/* Case 2: user picked an arbitrary index as the default boot entry */
2538		if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2539	kw = getKeywordByType(line->type, cfi);	&& config->cfi->defaultIsIndex) {
2540		indexToVerify = newDefaultBootEntryIndex;
2541	if (line->numElements == 0) {
2542	indent[0] = '\0';	/* user chose to make latest boot entry the default */
2543	} else if (insertHere == 0) {	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2544	indent[0] = kw->nextChar;	config->defaultImage = newBootEntryIndex;
2545	} else if (kw->separatorChar != '\0') {	return;
2546	indent[0] = kw->separatorChar;	}
	} else {
	indent[0] = ' ';
	}
2547
2548	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	/* the user picks the default index based on the
2549	/* move the end-of-line forward */	* order of the bootloader configuration after
2550	line->elements[insertHere].indent =	* modification; ensure we are checking for the
2551	line->elements[insertHere-1].indent;	* existence of the correct entry */
2552	line->elements[insertHere-1].indent = strdup(indent);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2553	} else {	if (!config->isModified)
2554	line->elements[insertHere].indent = strdup(indent);	indexToVerify--;
2555	}	}
2556
2557	line->numElements++;	/* verify the user selected index will exist */
2558		if (findEntryByIndex(config, indexToVerify)) {
2559		config->defaultImage = newDefaultBootEntryIndex;
2560		} else {
2561		config->defaultImage = NO_DEFAULT_ENTRY;
2562		}
2563
2564	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	return;
2565	line->elements[0].item,	}
	line->elements[insertHere].item,
	line->elements[insertHere].indent,
	insertHere);
	}
2566
2567	static void removeElement(struct singleLine * line, int removeHere) {	/* handle cases where the index value may shift */
	int i;
2568
2569	/* sanity check */	/* check validity of existing default or first-entry-found
2570	if (removeHere >= line->numElements) return;	selection */
2571		if (defaultKernelPath) {
2572		/* user requested first-entry-found */
2573		if (!findEntryByPath(config, defaultKernelPath,
2574		prefix, &firstKernelEntryIndex)) {
2575		/* don't change default if can't find match */
2576		config->defaultImage = NO_DEFAULT_ENTRY;
2577		return;
2578		}
2579
2580	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	config->defaultImage = firstKernelEntryIndex;
	removeHere, line->elements[removeHere].item);
2581
2582	free(line->elements[removeHere].item);	/* this is where we start looking for decrement later */
2583		currentLookupIndex = config->defaultImage;
2584
2585	if (removeHere > 1) {	if (isAddingBootEntry && !config->isModified &&
2586	/* previous argument gets this argument's post-indentation */	(newBootEntryIndex < config->defaultImage)) {
2587	free(line->elements[removeHere-1].indent);	/* increment because new entry added before default */
2588	line->elements[removeHere-1].indent =	config->defaultImage++;
2589	line->elements[removeHere].indent;	}
2590	} else {	} else {
2591	free(line->elements[removeHere].indent);	/* use pre-existing default entry */
2592	}	currentLookupIndex = config->defaultImage;
2593
2594	/* now collapse the array, but don't bother to realloc smaller */	if (isAddingBootEntry
2595	for (i = removeHere; i < line->numElements - 1; i++)	&& (newBootEntryIndex <= config->defaultImage)) {
2596	line->elements[i] = line->elements[i + 1];	config->defaultImage++;
	line->numElements--;
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements, *usedArgs;
	int doreplace;
	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;
	}
	}
2597
2598	if (!removeArgs) {	if (config->isModified) {
2599	oldArgs = malloc(sizeof(*oldArgs));	currentLookupIndex++;
2600	*oldArgs = NULL;	}
2601	} else {	}
	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
	fprintf(stderr,
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2602	}	}
	}
	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
2603
2604	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	/* sanity check - is this entry index valid? */
2605	&& !multibootArgs);	bootEntry = findEntryByIndex(config, currentLookupIndex);
2606
2607	for (k = 0, arg = newArgs; *arg; arg++, k++) ;	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2608	usedArgs = calloc(k, sizeof(*usedArgs));	/* entry is to be skipped or is invalid */
2609		if (isAddingBootEntry) {
2610		config->defaultImage = newBootEntryIndex;
2611		return;
2612		}
2613		newDefault =
2614		findTemplate(config, prefix, &config->defaultImage, 1,
2615		flags);
2616		if (!newDefault) {
2617		config->defaultImage = NO_DEFAULT_ENTRY;
2618		}
2619
2620	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	return;
2621		}
2622
2623	if (multibootArgs && !entry->multiboot)	currentLookupIndex--;
	continue;
2624
2625	/* Determine where to put the args.  If this config supports	/* decrement index by the total number of entries deleted */
	* LT_KERNELARGS, use that.  Otherwise use
	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
	*/
	if (useKernelArgs) {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (!line) {
	/* no LT_KERNELARGS, need to add it */
	line = addLine(entry, cfg->cfi, LT_KERNELARGS,
	cfg->secondaryIndent, NULL);
	}
	firstElement = 1;
	} else if (multibootArgs) {
	line = getLineByType(LT_HYPER, entry->lines);
	if (!line) {
	/* a multiboot entry without LT_HYPER? */
	continue;
	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
	}
2626
2627	/* handle the elilo case which does:	for (indexToVerify = currentLookupIndex;
2628	*   append="hypervisor args -- kernel args"	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	*/
	if (entry->multiboot && cfg->cfi->mbConcatArgs) {
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	if (usedArgs[k]) continue;
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	usedArgs[k]=1;
	break;
	}
	}
2629
2630	if (i < line->numElements && doreplace) {	bootEntry = findEntryByIndex(config, indexToVerify);
	/* direct replacement */
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
2631
2632	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	if (bootEntry && bootEntry->skip) {
2633	/* root= replacement */	config->defaultImage--;
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine) {
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
2634	}	}
	}
	else {
	/* insert/append */
	insertElement(line, *arg, i, cfg->cfi);
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
2635	}	}
2636	}	}
2637
2638	free(usedArgs);	void setFallbackImage(struct grubConfig *config, int hasNew)
2639	free(newArgs);	{
2640	free(oldArgs);	struct singleEntry *entry, *entry2;
2641		int j;
2642
2643	return 0;	if (config->fallbackImage == -1)
2644	}	return;
2645
2646	int updateImage(struct grubConfig * cfg, const char * image,	entry = findEntryByIndex(config, config->fallbackImage);
2647	const char * prefix, const char * addArgs,	if (!entry || entry->skip) {
2648	const char * removeArgs,	config->fallbackImage = -1;
2649	const char * addMBArgs, const char * removeMBArgs) {	return;
2650	int rc = 0;	}
	if (!image) return rc;
	/* update the main args first... */
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line) return 1;
	break;
	}
2651
2652	return 0;	if (hasNew)
2653		config->fallbackImage++;
2654
2655		/* count the number of entries erased before this one */
2656		for (j = 0; j < config->fallbackImage; j++) {
2657		entry2 = findEntryByIndex(config, j);
2658		if (entry2->skip)
2659		config->fallbackImage--;
2660		}
2661	}	}
2662
2663	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2664	int fd;	{
2665	unsigned char bootSect[512];	struct singleLine *line;
2666	int offset;	char *root = NULL;
2667		int i;
2668	fd = open(device, O_RDONLY);	int j;
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2669
2670	if (read(fd, bootSect, 512) != 512) {	printf("index=%d\n", index);
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	close(fd);
2671
2672	/* first three bytes should match, a jmp short should be in there */	line =
2673	if (memcmp(boot, bootSect, 3))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2674	return 0;	entry->lines);
2675		if (!line) {
2676		printf("non linux entry\n");
2677		return;
2678		}
2679
2680	if (boot[1] == 0xeb) {	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2681	offset = boot[2] + 2;	printf("kernel=%s\n", line->elements[1].item);
2682	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	else
2683	offset = (boot[3] << 8) + boot[2] + 2;	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	} 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;
	}
2684
2685	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (line->numElements >= 3) {
2686	return 0;	printf("args=\"");
2687		i = 2;
2688		while (i < line->numElements) {
2689		if (!strncmp(line->elements[i].item, "root=", 5)) {
2690		root = line->elements[i].item + 5;
2691		} else {
2692		printf("%s%s", line->elements[i].item,
2693		line->elements[i].indent);
2694		}
2695
2696	return 2;	i++;
2697	}	}
2698		printf("\"\n");
2699		} else {
2700		line = getLineByType(LT_KERNELARGS, entry->lines);
2701		if (line) {
2702		char *s;
2703
2704		printf("args=\"");
2705		i = 1;
2706		while (i < line->numElements) {
2707		if (!strncmp
2708		(line->elements[i].item, "root=", 5)) {
2709		root = line->elements[i].item + 5;
2710		} else {
2711		s = line->elements[i].item;
2712
2713	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	printf("%s%s", s,
2714	int fd;	line->elements[i].indent);
2715	char buf[65536];	}
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
2716
2717	/* it's on raid; we need to parse /proc/mdstat and check all of the	i++;
2718	*raw* devices listed in there */	}
2719
2720	if (!strncmp(mdDev, "/dev/", 5))	s = line->elements[i - 1].indent;
2721	mdDev += 5;	printf("\"\n");
2722		}
2723		}
2724
2725	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (!root) {
2726	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	line = getLineByType(LT_ROOT, entry->lines);
2727	strerror(errno));	if (line && line->numElements >= 2)
2728	return 2;	root = line->elements[1].item;
2729	}	}
2730
2731	rc = read(fd, buf, sizeof(buf) - 1);	if (root) {
2732	if (rc < 0 || rc == (sizeof(buf) - 1)) {	char *s = alloca(strlen(root) + 1);
	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
2733
2734	chptr = buf;	strcpy(s, root);
2735	while (*chptr) {	if (s[strlen(s) - 1] == '"')
2736	end = strchr(chptr, '\n');	s[strlen(s) - 1] = '\0';
2737	if (!end) break;	/* make sure the root doesn't have a trailing " */
2738	*end = '\0';	printf("root=%s\n", s);
2739		}
2740
2741	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	line =
2742	chptr[strlen(mdDev)] == ' ') {	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2743		entry->lines);
2744
2745	/* found the device */	if (line && line->numElements >= 2) {
2746	while (*chptr && *chptr != ':') chptr++;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2747	chptr++;	printf("initrd=");
2748	while (*chptr && isspace(*chptr)) chptr++;	else
2749		printf("initrd=%s", prefix);
	/* 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++;
	}
2750
2751	/*  we're good to go */	for (i = 1; i < line->numElements; i++)
2752	return 2;	printf("%s%s", line->elements[i].item,
2753		line->elements[i].indent);
2754		printf("\n");
2755	}	}
2756
2757	chptr = end + 1;	line = getLineByType(LT_TITLE, entry->lines);
2758	}	if (line) {
2759		printf("title=%s\n", line->elements[1].item);
2760		} else {
2761		char *title;
2762		line = getLineByType(LT_MENUENTRY, entry->lines);
2763		if (line) {
2764		title = grub2ExtractTitle(line);
2765		if (title)
2766		printf("title=%s\n", title);
2767		}
2768		}
2769
2770	fprintf(stderr,	for (j = 0, line = entry->lines; line; line = line->next) {
2771	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2772	mdDev);	if (!strncmp
2773	return 0;	(prefix, line->elements[1].item, strlen(prefix)))
2774		printf("mbmodule%d=", j);
2775		else
2776		printf("mbmodule%d=%s", j, prefix);
2777
2778		for (i = 1; i < line->numElements; i++)
2779		printf("%s%s", line->elements[i].item,
2780		line->elements[i].indent);
2781		printf("\n");
2782		j++;
2783		}
2784		}
2785	}	}
2786
2787	int checkForLilo(struct grubConfig * config) {	int isSuseSystem(void)
2788	int fd;	{
2789	unsigned char boot[512];	const char *path;
2790	struct singleLine * line;	const static char default_path[] = "/etc/SuSE-release";
	for (line = config->theLines; line; line = line->next)
	if (line->type == LT_BOOT) break;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
2791
2792	if (line->numElements != 2) return 1;	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2793		path = default_path;
2794
2795	fd = open("/boot/boot.b", O_RDONLY);	if (!access(path, R_OK))
2796	if (fd < 0) {	return 1;
2797	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	return 0;
2798	"/boot/boot.b", strerror(errno));	}
	return 1;
	}
2799
2800	if (read(fd, boot, 512) != 512) {	int isSuseGrubConf(const char *path)
2801	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2802	"/boot/boot.b", strerror(errno));	FILE *grubConf;
2803	return 1;	char *line = NULL;
2804	}	size_t len = 0, res = 0;
2805	close(fd);
2806		grubConf = fopen(path, "r");
2807		if (!grubConf) {
2808		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2809		path);
2810		return 0;
2811		}
2812
2813		while ((res = getline(&line, &len, grubConf)) != -1) {
2814		if (!strncmp(line, "setup", 5)) {
2815		fclose(grubConf);
2816		free(line);
2817		return 1;
2818		}
2819		}
2820
2821	if (!strncmp("/dev/md", line->elements[1].item, 7))	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2822	return checkLiloOnRaid(line->elements[1].item, boot);	path);
2823
2824	return checkDeviceBootloader(line->elements[1].item, boot);	fclose(grubConf);
2825		free(line);
2826		return 0;
2827	}	}
2828
2829	int checkForGrub(struct grubConfig * config) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2830	int fd;	{
2831	unsigned char bootSect[512];	FILE *grubConf;
2832	char * boot;	char *line = NULL;
2833		size_t res = 0, len = 0;
2834
2835	if (parseSysconfigGrub(NULL, &boot))	if (!path)
2836	return 0;	return 1;
2837		if (!lbaPtr)
2838		return 1;
2839
2840	/* assume grub is not installed -- not an error condition */	grubConf = fopen(path, "r");
2841	if (!boot)	if (!grubConf)
2842	return 0;	return 1;
2843
2844	fd = open("/boot/grub/stage1", O_RDONLY);	while ((res = getline(&line, &len, grubConf)) != -1) {
2845	if (fd < 0)	if (line[res - 1] == '\n')
2846	/* this doesn't exist if grub hasn't been installed */	line[res - 1] = '\0';
2847	return 0;	else if (len > res)
2848		line[res] = '\0';
2849		else {
2850		line = realloc(line, res + 1);
2851		line[res] = '\0';
2852		}
2853
2854	if (read(fd, bootSect, 512) != 512) {	if (!strncmp(line, "setup", 5)) {
2855	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	if (strstr(line, "--force-lba")) {
2856	"/boot/grub/stage1", strerror(errno));	*lbaPtr = 1;
2857	close(fd);	} else {
2858	return 1;	*lbaPtr = 0;
2859	}	}
2860	close(fd);	dbgPrintf("lba: %i\n", *lbaPtr);
2861		break;
2862		}
2863		}
2864
2865	return checkDeviceBootloader(boot, bootSect);	free(line);
2866		fclose(grubConf);
2867		return 0;
2868	}	}
2869
2870	int checkForExtLinux(struct grubConfig * config) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2871	int fd;	{
2872	unsigned char bootSect[512];	FILE *grubConf;
2873	char * boot;	char *line = NULL;
2874	char executable[] = "/boot/extlinux/extlinux";	size_t res = 0, len = 0;
2875		char *lastParamPtr = NULL;
2876		char *secLastParamPtr = NULL;
2877		char installDeviceNumber = '\0';
2878		char *bounds = NULL;
2879
2880	printf("entered: checkForExtLinux()\n");	if (!path)
2881		return 1;
2882		if (!devicePtr)
2883		return 1;
2884
2885	if (parseSysconfigGrub(NULL, &boot))	grubConf = fopen(path, "r");
2886	return 0;	if (!grubConf)
2887		return 1;
2888
2889	/* assume grub is not installed -- not an error condition */	while ((res = getline(&line, &len, grubConf)) != -1) {
2890	if (!boot)	if (strncmp(line, "setup", 5))
2891	return 0;	continue;
2892
2893		if (line[res - 1] == '\n')
2894		line[res - 1] = '\0';
2895		else if (len > res)
2896		line[res] = '\0';
2897		else {
2898		line = realloc(line, res + 1);
2899		line[res] = '\0';
2900		}
2901
2902	fd = open(executable, O_RDONLY);	lastParamPtr = bounds = line + res;
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
	return 0;
2903
2904	if (read(fd, bootSect, 512) != 512) {	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2905	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while (!isspace(*lastParamPtr))
2906	executable, strerror(errno));	lastParamPtr--;
2907	return 1;	lastParamPtr++;
2908	}
2909	close(fd);	secLastParamPtr = lastParamPtr - 2;
2910		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2911
2912		if (lastParamPtr + 3 > bounds) {
2913		dbgPrintf("lastParamPtr going over boundary");
2914		fclose(grubConf);
2915		free(line);
2916		return 1;
2917		}
2918		if (!strncmp(lastParamPtr, "(hd", 3))
2919		lastParamPtr += 3;
2920		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2921
2922		/*
2923		* Second last parameter will decide wether last parameter is
2924		* an IMAGE_DEVICE or INSTALL_DEVICE
2925		*/
2926		while (!isspace(*secLastParamPtr))
2927		secLastParamPtr--;
2928		secLastParamPtr++;
2929
2930		if (secLastParamPtr + 3 > bounds) {
2931		dbgPrintf("secLastParamPtr going over boundary");
2932		fclose(grubConf);
2933		free(line);
2934		return 1;
2935		}
2936		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2937		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2938		secLastParamPtr += 3;
2939		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2940		installDeviceNumber = *secLastParamPtr;
2941		} else {
2942		installDeviceNumber = *lastParamPtr;
2943		}
2944
2945		*devicePtr = malloc(6);
2946		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2947		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2948		fclose(grubConf);
2949		free(line);
2950		return 0;
2951		}
2952
2953	return checkDeviceBootloader(boot, bootSect);	free(line);
2954		fclose(grubConf);
2955		return 1;
2956	}	}
2957
2958	static char * getRootSpecifier(char * str) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2959	char * idx, * rootspec = NULL;	{
2960		FILE *deviceMap;
2961		char *line = NULL;
2962		size_t res = 0, len = 0;
2963		char *devicePtr;
2964		char *bounds = NULL;
2965		const char *path;
2966		const static char default_path[] = "/boot/grub/device.map";
2967
2968	if (*str == '(') {	if (!device)
2969	idx = rootspec = strdup(str);	return 1;
2970	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (!bootPtr)
2971	*(++idx) = '\0';	return 1;
	}
	return rootspec;
	}
2972
2973	static char * getInitrdVal(struct grubConfig * config,	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2974	const char * prefix, struct singleLine *tmplLine,	path = default_path;
	const char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount)
	{
	char *initrdVal, *end;
	int i;
	size_t totalSize;
	size_t prefixLen;
	char separatorChar;
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
2975
2976	initrdVal = end = malloc(totalSize);	dbgPrintf("opening grub device.map file from: %s\n", path);
2977		deviceMap = fopen(path, "r");
2978		if (!deviceMap)
2979		return 1;
2980
2981	end = stpcpy (end, newKernelInitrd + prefixLen);	while ((res = getline(&line, &len, deviceMap)) != -1) {
2982		if (!strncmp(line, "#", 1))
2983		continue;
2984
2985		if (line[res - 1] == '\n')
2986		line[res - 1] = '\0';
2987		else if (len > res)
2988		line[res] = '\0';
2989		else {
2990		line = realloc(line, res + 1);
2991		line[res] = '\0';
2992		}
2993
2994	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	devicePtr = line;
2995	for (i = 0; i < extraInitrdCount; i++) {	bounds = line + res;
	const char *extraInitrd;
	int j;
2996
2997	extraInitrd = extraInitrds[i] + prefixLen;	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2998	/* Don't add entries that are already there */	devicePtr++;
2999	if (tmplLine != NULL) {	dbgPrintf("device: %s\n", devicePtr);
3000	for (j = 2; j < tmplLine->numElements; j++)
3001	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	if (!strncmp(devicePtr, device, strlen(device))) {
3002	break;	devicePtr += strlen(device);
3003		while (isspace(*devicePtr)
3004		&& ((devicePtr + 1) <= bounds))
3005		devicePtr++;
3006
3007	if (j != tmplLine->numElements)	*bootPtr = strdup(devicePtr);
3008	continue;	break;
3009		}
3010	}	}
3011
3012	*end++ = separatorChar;	free(line);
3013	end = stpcpy(end, extraInitrd);	fclose(deviceMap);
3014	}	return 0;
	return initrdVal;
3015	}	}
3016
3017	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3018	const char * prefix,	{
3019	char * newKernelPath, char * newKernelTitle,	char *grubDevice;
	char * newKernelArgs, char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount,
	char * newMBKernel, char * newMBKernelArgs) {
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3020
3021	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3022	while (findEntryByPath(config, buf, NULL, NULL)) {	dbgPrintf("error looking for grub installation device\n");
3023	sprintf(numBuf, "%d", i++);	else
3024	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	dbgPrintf("grubby installation device: %s\n", grubDevice);
	}
3025
3026	newKernelTitle = buf + 6;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3027	}	dbgPrintf("error looking for grub boot device\n");
3028		else
3029		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3030
3031	new = malloc(sizeof(*new));	free(grubDevice);
3032	new->skip = 0;	return 0;
3033	new->multiboot = 0;	}
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3034
3035	if (template) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3036	for (masterLine = template->lines;	{
3037	masterLine && (tmplLine = lineDup(masterLine));	/*
3038	lineFree(tmplLine), masterLine = masterLine->next)	* This SuSE grub configuration file at this location is not your
3039	{	* average grub configuration file, but instead the grub commands
3040	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	* used to setup grub on that system.
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_TITLE &&
	(needs & NEED_TITLE)) {
	if (tmplLine->numElements >= 2) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelTitle, config->cfi);
	needs &= ~NEED_TITLE;
	} else if (tmplLine->numElements == 1 &&
	config->cfi->titleBracketed) {
	/* addLineTmpl doesn't handle titleBracketed */
	newLine = addLine(new, config->cfi, LT_TITLE,
	tmplLine->indent, newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
	}
	} else {
	/* don't have a template, so start the entry with the
	* appropriate starting line
3041	*/	*/
3042	switch (config->cfi->entrySeparator) {	const char *path;
3043	case LT_KERNEL:	const static char default_path[] = "/etc/grub.conf";
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3044
3045	case LT_HYPER:	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3046	newLine = addLine(new, config->cfi, LT_HYPER,	path = default_path;
	config->primaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3047
3048	case LT_TITLE:	if (!isSuseGrubConf(path))
3049	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	return 1;
	char * templabel;
	int x = 0, y = 0;
	templabel = strdup(newKernelTitle);
	while( templabel[x]){
	if( templabel[x] == ' ' ){
	y = x;
	while( templabel[y] ){
	templabel[y] = templabel[y+1];
	y++;
	}
	}
	x++;
	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
	}
	needs &= ~NEED_TITLE;
	break;
3050
3051	default:	if (lbaPtr) {
3052	abort();	*lbaPtr = 0;
3053		if (suseGrubConfGetLba(path, lbaPtr))
3054		return 1;
3055	}	}
	}
	/* add the remainder of the lines, i.e. those that either
	* weren't present in the template, or in the case of no template,
	* all the lines following the entrySeparator.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
3056
3057	if (needs) {	if (bootPtr) {
3058	printf(_("grubby: needs=%d, aborting\n"), needs);	*bootPtr = NULL;
3059	abort();	suseGrubConfGetBoot(path, bootPtr);
3060	}	}
	if (updateImage(config, "0", prefix, newKernelArgs, NULL,
	newMBKernelArgs, NULL)) return 1;
3061
3062	return 0;	return 0;
3063	}	}
3064
3065	static void traceback(int signum)	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3066	{	{
3067	void *array[40];	FILE *in;
3068	size_t size;	char buf[1024];
3069		char *chptr;
3070		char *start;
3071		char *param;
3072
3073	signal(SIGSEGV, SIG_DFL);	in = fopen("/etc/sysconfig/grub", "r");
3074	memset(array, '\0', sizeof (array));	if (!in)
	size = backtrace(array, 40);
	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",
	(unsigned long)size);
	backtrace_symbols_fd(array, size, STDERR_FILENO);
	exit(1);
	}
	int main(int argc, const char ** argv) {
	poptContext optCon;
	char * grubConfig = NULL;
	char * outputFile = NULL;
	int arg = 0;
	int flags = 0;
	int badImageOkay = 0;
	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
	int configureExtLinux = 0;
	int bootloaderProbe = 0;
	int extraInitrdCount = 0;
	char * updateKernelPath = NULL;
	char * newKernelPath = NULL;
	char * removeKernelPath = NULL;
	char * newKernelArgs = NULL;
	char * newKernelInitrd = NULL;
	char * newKernelTitle = NULL;
	char * newKernelVersion = NULL;
	char * newMBKernel = NULL;
	char * newMBKernelArgs = NULL;
	char * removeMBKernelArgs = NULL;
	char * removeMBKernel = NULL;
	char * bootPrefix = NULL;
	char * defaultKernel = NULL;
	char * removeArgs = NULL;
	char * kernelInfo = NULL;
	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
	const char * chptr = NULL;
	struct configFileInfo * cfi = NULL;
	struct grubConfig * config;
	struct singleEntry * template = NULL;
	int copyDefault = 0, makeDefault = 0;
	int displayDefault = 0;
	struct poptOption options[] = {
	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
	_("add an entry for the specified kernel"), _("kernel-path") },
	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
	_("add an entry for the specified multiboot kernel"), NULL },
	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
	#if defined(__i386__) || defined(__x86_64__)
	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
	_("check if lilo is installed on lilo.conf boot sector") },
	#endif
	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
	_("path to grub config file to update (\"-\" for stdin)"),
	_("path") },
	{ "copy-default", 0, 0, &copyDefault, 0,
	_("use the default boot entry as a template for the new entry "
	"being added; if the default is not a linux image, or if "
	"the kernel referenced by the default image does not exist, "
	"the first linux entry whose kernel does exist is used as the "
	"template"), NULL },
	{ "default-kernel", 0, 0, &displayDefault, 0,
	_("display the path of the default kernel") },
	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
	_("configure elilo bootloader") },
	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
	_("configure extlinux bootloader (from syslinux)") },
	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,
	_("configure grub bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	optCon = poptGetContext("grubby", argc, argv, options, 0);
	poptReadDefaultConfig(optCon, 1);
	while ((arg = poptGetNextOpt(optCon)) >= 0) {
	switch (arg) {
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
3075	return 1;	return 1;
3076	}
3077	break;	if (lbaPtr)
3078		*lbaPtr = 0;
3079		if (bootPtr)
3080		*bootPtr = NULL;
3081
3082		while (fgets(buf, sizeof(buf), in)) {
3083		start = buf;
3084		while (isspace(*start))
3085		start++;
3086		if (*start == '#')
3087		continue;
3088
3089		chptr = strchr(start, '=');
3090		if (!chptr)
3091		continue;
3092		chptr--;
3093		while (*chptr && isspace(*chptr))
3094		chptr--;
3095		chptr++;
3096		*chptr = '\0';
3097
3098		param = chptr + 1;
3099		while (*param && isspace(*param))
3100		param++;
3101		if (*param == '=') {
3102		param++;
3103		while (*param && isspace(*param))
3104		param++;
3105		}
3106
3107		chptr = param;
3108		while (*chptr && !isspace(*chptr))
3109		chptr++;
3110		*chptr = '\0';
3111
3112		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3113		*lbaPtr = 1;
3114		else if (!strcmp(start, "boot") && bootPtr)
3115		*bootPtr = strdup(param);
3116	}	}
	}
3117
3118	if (arg < -1) {	fclose(in);
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
3119
3120	if ((chptr = poptGetArg(optCon))) {	return 0;
3121	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	}
	return 1;
	}
3122
3123	if ((configureLilo + configureGrub + configureELilo +	void dumpSysconfigGrub(void)
3124	configureYaboot + configureSilo + configureZipl +	{
3125	configureExtLinux ) > 1) {	char *boot = NULL;
3126	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	int lba;
	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;
	} else if (configureExtLinux) {
	cfi = &extlinuxConfigType;
	useextlinuxmenu=1;
	}
3127
3128	if (!cfi) {	if (isSuseSystem()) {
3129	#ifdef __ia64__	if (parseSuseGrubConf(&lba, &boot)) {
3130	cfi = &eliloConfigType;	free(boot);
3131	#elif __powerpc__	return;
3132	cfi = &yabootConfigType;	}
3133	#elif __sparc__	} else {
3134	cfi = &siloConfigType;	if (parseSysconfigGrub(&lba, &boot)) {
3135	#elif __s390__	free(boot);
3136	cfi = &ziplConfigType;	return;
3137	#elif __s390x__	}
3138	cfi = &ziplConfigtype;	}
	#else
	cfi = &grubConfigType;
	#endif
	}
3139
3140	if (!grubConfig)	if (lba)
3141	grubConfig = cfi->defaultConfig;	printf("lba\n");
3142		if (boot) {
3143		printf("boot=%s\n", boot);
3144		free(boot);
3145		}
3146		}
3147
3148	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3149	newKernelPath || removeKernelPath || makeDefault ||	{
3150	defaultKernel)) {	int i = 0;
3151	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	struct singleEntry *entry;
3152	"specified option"));	struct singleLine *line;
3153	return 1;
3154	}	entry = findEntryByPath(config, kernel, prefix, &i);
3155		if (!entry) {
3156		fprintf(stderr, _("grubby: kernel not found\n"));
3157		return 1;
3158		}
3159
3160	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3161	removeKernelPath)) {	be a better way */
3162	fprintf(stderr, _("grubby: --default-kernel and --info may not "	if (config->cfi == &grubConfigType) {
3163	"be used when adding or removing kernels\n"));	dumpSysconfigGrub();
3164	return 1;	} else {
3165	}	line = getLineByType(LT_BOOT, config->theLines);
3166		if (line && line->numElements >= 1) {
3167		printf("boot=%s\n", line->elements[1].item);
3168		}
3169
3170	if (newKernelPath && !newKernelTitle) {	line = getLineByType(LT_LBA, config->theLines);
3171	fprintf(stderr, _("grubby: kernel title must be specified\n"));	if (line)
3172	return 1;	printf("lba\n");
3173	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	}
	(newKernelInitrd && !updateKernelPath)||
	makeDefault || extraInitrdCount > 0)) {
	fprintf(stderr, _("grubby: kernel path expected\n"));
	return 1;
	}
3174
3175	if (newKernelPath && updateKernelPath) {	displayEntry(entry, prefix, i);
	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
	"not be used together"));
	return 1;
	}
3176
3177	if (makeDefault && defaultKernel) {	i++;
3178	fprintf(stderr, _("grubby: --make-default and --default-kernel "	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3179	"may not be used together\n"));	displayEntry(entry, prefix, i);
3180	return 1;	i++;
3181	} 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;
	}
3182
3183	if (!strcmp(grubConfig, "-") && !outputFile) {	return 0;
3184	fprintf(stderr, _("grubby: output file must be specified if stdin "	}
	"is used\n"));
	return 1;
	}
3185
3186	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	struct singleLine *addLineTmpl(struct singleEntry *entry,
3187	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	struct singleLine *tmplLine,
3188	&& !removeMBKernel) {	struct singleLine *prevLine,
3189	fprintf(stderr, _("grubby: no action specified\n"));	const char *val, struct configFileInfo *cfi)
3190	return 1;	{
3191	}	struct singleLine *newLine = lineDup(tmplLine);
3192
3193	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	if (isEfi && cfi == &grub2ConfigType) {
3194		enum lineType_e old = newLine->type;
3195		newLine->type = preferredLineType(newLine->type, cfi);
3196		if (old != newLine->type)
3197		newLine->elements[0].item =
3198		getKeyByType(newLine->type, cfi);
3199		}
3200
3201	if (cfi->needsBootPrefix) {	if (val) {
3202	if (!bootPrefix) {	/* override the inherited value with our own.
3203	bootPrefix = findBootPrefix();	* This is a little weak because it only applies to elements[1]
3204	if (!bootPrefix) return 1;	*/
3205	} else {	if (newLine->numElements > 1)
3206	/* this shouldn't end with a / */	removeElement(newLine, 1);
3207	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	insertElement(newLine, val, 1, cfi);
3208	bootPrefix[strlen(bootPrefix) - 1] = '\0';
3209		/* but try to keep the rootspec from the template... sigh */
3210		if (tmplLine->
3211		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3212		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3213		LT_INITRD_16)) {
3214		char *rootspec =
3215		getRootSpecifier(tmplLine->elements[1].item);
3216		if (rootspec != NULL) {
3217		free(newLine->elements[1].item);
3218		newLine->elements[1].item =
3219		sdupprintf("%s%s", rootspec, val);
3220		}
3221		}
3222	}	}
	} else {
	bootPrefix = "";
	}
3223
3224	if (!cfi->mbAllowExtraInitRds &&	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3225	extraInitrdCount > 0) {	newLine->elements[0].item : "");
	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);
	return 1;
	}
3226
3227	if (bootloaderProbe) {	if (!entry->lines) {
3228	int lrc = 0, grc = 0, erc = 0;	/* first one on the list */
3229	struct grubConfig * lconfig, * gconfig;	entry->lines = newLine;
3230		} else if (prevLine) {
3231	if (!access(grubConfigType.defaultConfig, F_OK)) {	/* add after prevLine */
3232	gconfig = readConfig(grubConfigType.defaultConfig, &grubConfigType);	newLine->next = prevLine->next;
3233	if (!gconfig)	prevLine->next = newLine;
3234	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);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	erc = 1;
	else
	erc = checkForExtLinux(lconfig);
	}
	if (lrc == 1 || grc == 1) return 1;
	if (lrc == 2) printf("lilo\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
3235
3236	return 0;	return newLine;
3237	}	}
3238
3239	config = readConfig(grubConfig, cfi);	/* val may be NULL */
3240	if (!config) return 1;	struct singleLine *addLine(struct singleEntry *entry,
3241		struct configFileInfo *cfi,
3242		enum lineType_e type, char *defaultIndent,
3243		const char *val)
3244		{
3245		struct singleLine *line, *prev;
3246		struct keywordTypes *kw;
3247		struct singleLine tmpl;
3248
3249	if (displayDefault) {	/* NB: This function shouldn't allocate items on the heap, rather on
3250	struct singleLine * line;	* the stack since it calls addLineTmpl which will make copies.
3251	struct singleEntry * entry;	*/
3252	char * rootspec;	if (type == LT_TITLE && cfi->titleBracketed) {
3253		/* we're doing a bracketed title (zipl) */
3254	if (config->defaultImage == -1) return 0;	tmpl.type = type;
3255	entry = findEntryByIndex(config, config->defaultImage);	tmpl.numElements = 1;
3256	if (!entry) return 0;	tmpl.elements = alloca(sizeof(*tmpl.elements));
3257	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;	tmpl.elements[0].item = alloca(strlen(val) + 3);
3258		sprintf(tmpl.elements[0].item, "[%s]", val);
3259	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	tmpl.elements[0].indent = "";
3260	if (!line) return 0;	val = NULL;
3261		} else if (type == LT_MENUENTRY) {
3262	rootspec = getRootSpecifier(line->elements[1].item);	char *lineend = "--class gnu-linux --class gnu --class os {";
3263	printf("%s%s\n", bootPrefix, line->elements[1].item +	if (!val) {
3264	((rootspec != NULL) ? strlen(rootspec) : 0));	fprintf(stderr,
3265		"Line type LT_MENUENTRY requires a value\n");
3266		abort();
3267		}
3268		kw = getKeywordByType(type, cfi);
3269		if (!kw) {
3270		fprintf(stderr,
3271		"Looking up keyword for unknown type %d\n",
3272		type);
3273		abort();
3274		}
3275		tmpl.indent = "";
3276		tmpl.type = type;
3277		tmpl.numElements = 3;
3278		tmpl.elements =
3279		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3280		tmpl.elements[0].item = kw->key;
3281		tmpl.elements[0].indent = alloca(2);
3282		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3283		tmpl.elements[1].item = (char *)val;
3284		tmpl.elements[1].indent = alloca(2);
3285		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3286		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3287		strcpy(tmpl.elements[2].item, lineend);
3288		tmpl.elements[2].indent = "";
3289		} else {
3290		kw = getKeywordByType(type, cfi);
3291		if (!kw) {
3292		fprintf(stderr,
3293		"Looking up keyword for unknown type %d\n",
3294		type);
3295		abort();
3296		}
3297		tmpl.type = type;
3298		tmpl.numElements = val ? 2 : 1;
3299		tmpl.elements =
3300		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3301		tmpl.elements[0].item = kw->key;
3302		tmpl.elements[0].indent = alloca(2);
3303		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3304		if (val) {
3305		tmpl.elements[1].item = (char *)val;
3306		tmpl.elements[1].indent = "";
3307		}
3308		}
3309
3310	return 0;	/* The last non-empty line gives us the indention to us and the line
3311	} else if (kernelInfo)	* to insert after. Note that comments are considered empty lines,
3312	return displayInfo(config, kernelInfo, bootPrefix);	* which may not be ideal? If there are no lines or we are looking at
3313		* the first line, we use defaultIndent (the first line is normally
3314		* indented differently from the rest) */
3315		for (line = entry->lines, prev = NULL; line; line = line->next) {
3316		if (line->numElements)
3317		prev = line;
3318		/* fall back on the last line if prev isn't otherwise set */
3319		if (!line->next && !prev)
3320		prev = line;
3321		}
3322
3323		struct singleLine *menuEntry;
3324		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3325		if (tmpl.type == LT_ENTRY_END) {
3326		if (menuEntry)
3327		tmpl.indent = menuEntry->indent;
3328		else
3329		tmpl.indent = defaultIndent ? : "";
3330		} else if (tmpl.type != LT_MENUENTRY) {
3331		if (menuEntry)
3332		tmpl.indent = "\t";
3333		else if (prev == entry->lines)
3334		tmpl.indent = defaultIndent ? : "";
3335		else
3336		tmpl.indent = prev->indent;
3337		}
3338
3339	if (copyDefault) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3340	template = findTemplate(config, bootPrefix, NULL, 0, flags);	}
	if (!template) return 1;
	}
3341
3342	markRemovedImage(config, removeKernelPath, bootPrefix);	void removeLine(struct singleEntry *entry, struct singleLine *line)
3343	markRemovedImage(config, removeMBKernel, bootPrefix);	{
3344	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	struct singleLine *prev;
3345	bootPrefix, flags);	int i;
3346	setFallbackImage(config, newKernelPath != NULL);
3347	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	for (i = 0; i < line->numElements; i++) {
3348	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	free(line->elements[i].item);
3349	if (updateKernelPath && newKernelInitrd) {	free(line->elements[i].indent);
3350	if (updateInitrd(config, updateKernelPath, bootPrefix,	}
3351	newKernelInitrd)) return 1;	free(line->elements);
3352	}	free(line->indent);
3353	if (addNewKernel(config, template, bootPrefix, newKernelPath,
3354	newKernelTitle, newKernelArgs, newKernelInitrd,	if (line == entry->lines) {
3355	extraInitrds, extraInitrdCount,	entry->lines = line->next;
3356	newMBKernel, newMBKernelArgs)) return 1;	} else {
3357		prev = entry->lines;
3358		while (prev->next != line)
3359	if (numEntries(config) == 0) {	prev = prev->next;
3360	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	prev->next = line->next;
3361	"Not writing out new config.\n"));	}
3362	return 1;
3363	}	free(line);
3364		}
3365
3366		static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3367		{
3368		struct singleLine newLine = {
3369		.indent = tmplLine->indent,
3370		.type = tmplLine->type,
3371		.next = tmplLine->next,
3372		};
3373		int firstQuotedItem = -1;
3374		int quoteLen = 0;
3375		int j;
3376		int element = 0;
3377		char *c;
3378
3379		c = malloc(strlen(tmplLine->elements[0].item) + 1);
3380		strcpy(c, tmplLine->elements[0].item);
3381		insertElement(&newLine, c, element++, cfi);
3382		free(c);
3383		c = NULL;
3384
3385		for (j = 1; j < tmplLine->numElements; j++) {
3386		if (firstQuotedItem == -1) {
3387		quoteLen += strlen(tmplLine->elements[j].item);
3388
3389		if (isquote(tmplLine->elements[j].item[0])) {
3390		firstQuotedItem = j;
3391		quoteLen +=
3392		strlen(tmplLine->elements[j].indent);
3393		} else {
3394		c = malloc(quoteLen + 1);
3395		strcpy(c, tmplLine->elements[j].item);
3396		insertElement(&newLine, c, element++, cfi);
3397		free(c);
3398		quoteLen = 0;
3399		}
3400		} else {
3401		int itemlen = strlen(tmplLine->elements[j].item);
3402		quoteLen += itemlen;
3403		quoteLen += strlen(tmplLine->elements[j].indent);
3404
3405		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3406		c = malloc(quoteLen + 1);
3407		c[0] = '\0';
3408		for (int i = firstQuotedItem; i < j + 1; i++) {
3409		strcat(c, tmplLine->elements[i].item);
3410		strcat(c, tmplLine->elements[i].indent);
3411		}
3412		insertElement(&newLine, c, element++, cfi);
3413		free(c);
3414
3415		firstQuotedItem = -1;
3416		quoteLen = 0;
3417		}
3418		}
3419		}
3420		while (tmplLine->numElements)
3421		removeElement(tmplLine, 0);
3422		if (tmplLine->elements)
3423		free(tmplLine->elements);
3424
3425		tmplLine->numElements = newLine.numElements;
3426		tmplLine->elements = newLine.elements;
3427		}
3428
3429		static void insertElement(struct singleLine *line,
3430		const char *item, int insertHere,
3431		struct configFileInfo *cfi)
3432		{
3433		struct keywordTypes *kw;
3434		char indent[2] = "";
3435
3436		/* sanity check */
3437		if (insertHere > line->numElements) {
3438		dbgPrintf
3439		("insertElement() adjusting insertHere from %d to %d\n",
3440		insertHere, line->numElements);
3441		insertHere = line->numElements;
3442		}
3443
3444		line->elements = realloc(line->elements, (line->numElements + 1) *
3445		sizeof(*line->elements));
3446		memmove(&line->elements[insertHere + 1],
3447		&line->elements[insertHere],
3448		(line->numElements - insertHere) * sizeof(*line->elements));
3449		line->elements[insertHere].item = strdup(item);
3450
3451		kw = getKeywordByType(line->type, cfi);
3452
3453		if (line->numElements == 0) {
3454		indent[0] = '\0';
3455		} else if (insertHere == 0) {
3456		indent[0] = kw->nextChar;
3457		} else if (kw->separatorChar != '\0') {
3458		indent[0] = kw->separatorChar;
3459		} else {
3460		indent[0] = ' ';
3461		}
3462
3463		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3464		/* move the end-of-line forward */
3465		line->elements[insertHere].indent =
3466		line->elements[insertHere - 1].indent;
3467		line->elements[insertHere - 1].indent = strdup(indent);
3468		} else {
3469		line->elements[insertHere].indent = strdup(indent);
3470		}
3471
3472		line->numElements++;
3473
3474		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3475		line->elements[0].item,
3476		line->elements[insertHere].item,
3477		line->elements[insertHere].indent, insertHere);
3478		}
3479
3480		static void removeElement(struct singleLine *line, int removeHere)
3481		{
3482		int i;
3483
3484		/* sanity check */
3485		if (removeHere >= line->numElements)
3486		return;
3487
3488		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3489		removeHere, line->elements[removeHere].item);
3490
3491		free(line->elements[removeHere].item);
3492
3493		if (removeHere > 1) {
3494		/* previous argument gets this argument's post-indentation */
3495		free(line->elements[removeHere - 1].indent);
3496		line->elements[removeHere - 1].indent =
3497		line->elements[removeHere].indent;
3498		} else {
3499		free(line->elements[removeHere].indent);
3500		}
3501
3502		/* now collapse the array, but don't bother to realloc smaller */
3503		for (i = removeHere; i < line->numElements - 1; i++)
3504		line->elements[i] = line->elements[i + 1];
3505
3506		line->numElements--;
3507		}
3508
3509		int argMatch(const char *one, const char *two)
3510		{
3511		char *first, *second;
3512		char *chptr;
3513
3514		first = strcpy(alloca(strlen(one) + 1), one);
3515		second = strcpy(alloca(strlen(two) + 1), two);
3516
3517		chptr = strchr(first, '=');
3518		if (chptr)
3519		*chptr = '\0';
3520
3521		chptr = strchr(second, '=');
3522		if (chptr)
3523		*chptr = '\0';
3524
3525		return strcmp(first, second);
3526		}
3527
3528		int updateActualImage(struct grubConfig *cfg, const char *image,
3529		const char *prefix, const char *addArgs,
3530		const char *removeArgs, int multibootArgs)
3531		{
3532		struct singleEntry *entry;
3533		struct singleLine *line, *rootLine;
3534		int index = 0;
3535		int i, k;
3536		const char **newArgs, **oldArgs;
3537		const char **arg;
3538		int useKernelArgs, useRoot;
3539		int firstElement;
3540		int *usedElements;
3541		int doreplace;
3542
3543		if (!image)
3544		return 0;
3545
3546		if (!addArgs) {
3547		newArgs = malloc(sizeof(*newArgs));
3548		*newArgs = NULL;
3549		} else {
3550		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3551		fprintf(stderr,
3552		_("grubby: error separating arguments '%s'\n"),
3553		addArgs);
3554		return 1;
3555		}
3556		}
3557
3558		if (!removeArgs) {
3559		oldArgs = malloc(sizeof(*oldArgs));
3560		*oldArgs = NULL;
3561		} else {
3562		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3563		fprintf(stderr,
3564		_("grubby: error separating arguments '%s'\n"),
3565		removeArgs);
3566		free(newArgs);
3567		return 1;
3568		}
3569		}
3570
3571		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3572		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3573
3574		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3575		&& !multibootArgs);
3576
3577		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3578
3579		if (multibootArgs && !entry->multiboot)
3580		continue;
3581
3582		/* Determine where to put the args.  If this config supports
3583		* LT_KERNELARGS, use that.  Otherwise use
3584		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3585		*/
3586		if (useKernelArgs) {
3587		line = getLineByType(LT_KERNELARGS, entry->lines);
3588		if (!line) {
3589		/* no LT_KERNELARGS, need to add it */
3590		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3591		cfg->secondaryIndent, NULL);
3592		}
3593		firstElement = 1;
3594
3595		} else if (multibootArgs) {
3596		line = getLineByType(LT_HYPER, entry->lines);
3597		if (!line) {
3598		/* a multiboot entry without LT_HYPER? */
3599		continue;
3600		}
3601		firstElement = 2;
3602
3603		} else {
3604		line =
3605		getLineByType(LT_KERNEL | LT_MBMODULE |
3606		LT_KERNEL_EFI | LT_KERNEL_16,
3607		entry->lines);
3608		if (!line) {
3609		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3610		continue;
3611		}
3612		firstElement = 2;
3613		}
3614
3615		/* handle the elilo case which does:
3616		*   append="hypervisor args -- kernel args"
3617		*/
3618		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3619		/* this is a multiboot entry, make sure there's
3620		* -- on the args line
3621		*/
3622		for (i = firstElement; i < line->numElements; i++) {
3623		if (!strcmp(line->elements[i].item, "--"))
3624		break;
3625		}
3626		if (i == line->numElements) {
3627		/* assume all existing args are kernel args,
3628		* prepend -- to make it official
3629		*/
3630		insertElement(line, "--", firstElement,
3631		cfg->cfi);
3632		i = firstElement;
3633		}
3634		if (!multibootArgs) {
3635		/* kernel args start after the -- */
3636		firstElement = i + 1;
3637		}
3638		} else if (cfg->cfi->mbConcatArgs) {
3639		/* this is a non-multiboot entry, remove hyper args */
3640		for (i = firstElement; i < line->numElements; i++) {
3641		if (!strcmp(line->elements[i].item, "--"))
3642		break;
3643		}
3644		if (i < line->numElements) {
3645		/* remove args up to -- */
3646		while (strcmp
3647		(line->elements[firstElement].item,
3648		"--"))
3649		removeElement(line, firstElement);
3650		/* remove -- */
3651		removeElement(line, firstElement);
3652		}
3653		}
3654
3655		usedElements = calloc(line->numElements, sizeof(*usedElements));
3656
3657		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3658
3659		doreplace = 1;
3660		for (i = firstElement; i < line->numElements; i++) {
3661		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3662		!strcmp(line->elements[i].item, "--")) {
3663		/* reached the end of hyper args, insert here */
3664		doreplace = 0;
3665		break;
3666		}
3667		if (usedElements[i])
3668		continue;
3669		if (!argMatch(line->elements[i].item, *arg)) {
3670		usedElements[i] = 1;
3671		break;
3672		}
3673		}
3674
3675		if (i < line->numElements && doreplace) {
3676		/* direct replacement */
3677		free(line->elements[i].item);
3678		line->elements[i].item = strdup(*arg);
3679
3680		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3681		/* root= replacement */
3682		rootLine = getLineByType(LT_ROOT, entry->lines);
3683		if (rootLine) {
3684		free(rootLine->elements[1].item);
3685		rootLine->elements[1].item =
3686		strdup(*arg + 5);
3687		} else {
3688		rootLine =
3689		addLine(entry, cfg->cfi, LT_ROOT,
3690		cfg->secondaryIndent,
3691		*arg + 5);
3692		}
3693		}
3694
3695		else {
3696		/* insert/append */
3697		insertElement(line, *arg, i, cfg->cfi);
3698		usedElements =
3699		realloc(usedElements,
3700		line->numElements *
3701		sizeof(*usedElements));
3702		memmove(&usedElements[i + 1], &usedElements[i],
3703		line->numElements - i - 1);
3704		usedElements[i] = 1;
3705
3706		/* if we updated a root= here even though
3707		* there is a LT_ROOT available we need to
3708		* remove the LT_ROOT entry (this will happen
3709		* if we switch from a device to a label) */
3710		if (useRoot && !strncmp(*arg, "root=", 5)) {
3711		rootLine =
3712		getLineByType(LT_ROOT,
3713		entry->lines);
3714		if (rootLine)
3715		removeLine(entry, rootLine);
3716		}
3717		}
3718		}
3719
3720		free(usedElements);
3721
3722		for (arg = oldArgs; *arg; arg++) {
3723		for (i = firstElement; i < line->numElements; i++) {
3724		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3725		!strcmp(line->elements[i].item, "--"))
3726		/* reached the end of hyper args, stop here */
3727		break;
3728		if (!argMatch(line->elements[i].item, *arg)) {
3729		removeElement(line, i);
3730		break;
3731		}
3732		}
3733		/* handle removing LT_ROOT line too */
3734		if (useRoot && !strncmp(*arg, "root=", 5)) {
3735		rootLine = getLineByType(LT_ROOT, entry->lines);
3736		if (rootLine)
3737		removeLine(entry, rootLine);
3738		}
3739		}
3740
3741		if (line->numElements == 1) {
3742		/* don't need the line at all (note it has to be a
3743		LT_KERNELARGS for this to happen */
3744		removeLine(entry, line);
3745		}
3746		}
3747
3748		free(newArgs);
3749		free(oldArgs);
3750
3751		return 0;
3752		}
3753
3754		int updateImage(struct grubConfig *cfg, const char *image,
3755		const char *prefix, const char *addArgs,
3756		const char *removeArgs,
3757		const char *addMBArgs, const char *removeMBArgs)
3758		{
3759		int rc = 0;
3760
3761		if (!image)
3762		return rc;
3763
3764		/* update the main args first... */
3765		if (addArgs || removeArgs)
3766		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3767		0);
3768		if (rc)
3769		return rc;
3770
3771		/* and now any multiboot args */
3772		if (addMBArgs || removeMBArgs)
3773		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3774		removeMBArgs, 1);
3775		return rc;
3776		}
3777
3778		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3779		const char *image, const char *prefix, const char *initrd,
3780		const char *title)
3781		{
3782		struct singleEntry *entry;
3783		struct singleLine *line, *kernelLine, *endLine = NULL;
3784		int index = 0;
3785
3786		if (!image)
3787		return 0;
3788
3789		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3790		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3791		if (!kernelLine)
3792		continue;
3793
3794		/* if title is supplied, the entry's title must match it. */
3795		if (title) {
3796		char *linetitle;
3797
3798		line =
3799		getLineByType(LT_TITLE | LT_MENUENTRY,
3800		entry->lines);
3801		if (!line)
3802		continue;
3803
3804		linetitle = extractTitle(cfg, line);
3805		if (!linetitle)
3806		continue;
3807		if (strcmp(title, linetitle)) {
3808		free(linetitle);
3809		continue;
3810		}
3811		free(linetitle);
3812		}
3813
3814		if (prefix) {
3815		int prefixLen = strlen(prefix);
3816		if (!strncmp(initrd, prefix, prefixLen))
3817		initrd += prefixLen;
3818		}
3819		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3820		if (endLine)
3821		removeLine(entry, endLine);
3822		line =
3823		addLine(entry, cfg->cfi,
3824		preferredLineType(LT_MBMODULE, cfg->cfi),
3825		kernelLine->indent, initrd);
3826		if (!line)
3827		return 1;
3828		if (endLine) {
3829		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3830		if (!line)
3831		return 1;
3832		}
3833
3834		break;
3835		}
3836
3837		return 0;
3838		}
3839
3840		int updateInitrd(struct grubConfig *cfg, const char *image,
3841		const char *prefix, const char *initrd, const char *title)
3842		{
3843		struct singleEntry *entry;
3844		struct singleLine *line, *kernelLine, *endLine = NULL;
3845		int index = 0;
3846
3847		if (!image)
3848		return 0;
3849
3850		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3851		kernelLine =
3852		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3853		entry->lines);
3854		if (!kernelLine)
3855		continue;
3856
3857		/* if title is supplied, the entry's title must match it. */
3858		if (title) {
3859		char *linetitle;
3860
3861		line =
3862		getLineByType(LT_TITLE | LT_MENUENTRY,
3863		entry->lines);
3864		if (!line)
3865		continue;
3866
3867		linetitle = extractTitle(cfg, line);
3868		if (!linetitle)
3869		continue;
3870		if (strcmp(title, linetitle)) {
3871		free(linetitle);
3872		continue;
3873		}
3874		free(linetitle);
3875		}
3876
3877		line =
3878		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3879		entry->lines);
3880		if (line)
3881		removeLine(entry, line);
3882		if (prefix) {
3883		int prefixLen = strlen(prefix);
3884		if (!strncmp(initrd, prefix, prefixLen))
3885		initrd += prefixLen;
3886		}
3887		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3888		if (endLine)
3889		removeLine(entry, endLine);
3890		enum lineType_e lt;
3891		switch (kernelLine->type) {
3892		case LT_KERNEL:
3893		lt = LT_INITRD;
3894		break;
3895		case LT_KERNEL_EFI:
3896		lt = LT_INITRD_EFI;
3897		break;
3898		case LT_KERNEL_16:
3899		lt = LT_INITRD_16;
3900		break;
3901		default:
3902		lt = preferredLineType(LT_INITRD, cfg->cfi);
3903		}
3904		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3905		if (!line)
3906		return 1;
3907		if (endLine) {
3908		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3909		if (!line)
3910		return 1;
3911		}
3912
3913		break;
3914		}
3915
3916		return 0;
3917		}
3918
3919		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3920		{
3921		int fd;
3922		unsigned char bootSect[512];
3923		int offset;
3924
3925		fd = open(device, O_RDONLY);
3926		if (fd < 0) {
3927		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3928		device, strerror(errno));
3929		return 1;
3930		}
3931
3932		if (read(fd, bootSect, 512) != 512) {
3933		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3934		device, strerror(errno));
3935		return 1;
3936		}
3937		close(fd);
3938
3939		/* first three bytes should match, a jmp short should be in there */
3940		if (memcmp(boot, bootSect, 3))
3941		return 0;
3942
3943		if (boot[1] == JMP_SHORT_OPCODE) {
3944		offset = boot[2] + 2;
3945		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3946		offset = (boot[3] << 8) + boot[2] + 2;
3947		} else if (boot[0] == JMP_SHORT_OPCODE) {
3948		offset = boot[1] + 2;
3949		/*
3950		* it looks like grub, when copying stage1 into the mbr,
3951		* patches stage1 right after the JMP location, replacing
3952		* other instructions such as JMPs for NOOPs. So, relax the
3953		* check a little bit by skipping those different bytes.
3954		*/
3955		if ((bootSect[offset + 1] == NOOP_OPCODE)
3956		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3957		offset = offset + 3;
3958		}
3959		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3960		offset = (boot[2] << 8) + boot[1] + 2;
3961		} else {
3962		return 0;
3963		}
3964
3965		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3966		return 0;
3967
3968		return 2;
3969		}
3970
3971		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3972		{
3973		int fd;
3974		char buf[65536];
3975		char *end;
3976		char *chptr;
3977		char *chptr2;
3978		int rc;
3979
3980		/* it's on raid; we need to parse /proc/mdstat and check all of the
3981		*raw* devices listed in there */
3982
3983		if (!strncmp(mdDev, "/dev/", 5))
3984		mdDev += 5;
3985
3986		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3987		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3988		strerror(errno));
3989		return 2;
3990		}
3991
3992		rc = read(fd, buf, sizeof(buf) - 1);
3993		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3994		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3995		strerror(errno));
3996		close(fd);
3997		return 2;
3998		}
3999		close(fd);
4000		buf[rc] = '\0';
4001
4002		chptr = buf;
4003		while (*chptr) {
4004		end = strchr(chptr, '\n');
4005		if (!end)
4006		break;
4007		*end = '\0';
4008
4009		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4010		chptr[strlen(mdDev)] == ' ') {
4011
4012		/* found the device */
4013		while (*chptr && *chptr != ':')
4014		chptr++;
4015		chptr++;
4016		while (*chptr && isspace(*chptr))
4017		chptr++;
4018
4019		/* skip the "active" bit */
4020		while (*chptr && !isspace(*chptr))
4021		chptr++;
4022		while (*chptr && isspace(*chptr))
4023		chptr++;
4024
4025		/* skip the raid level */
4026		while (*chptr && !isspace(*chptr))
4027		chptr++;
4028		while (*chptr && isspace(*chptr))
4029		chptr++;
4030
4031		/* everything else is partition stuff */
4032		while (*chptr) {
4033		chptr2 = chptr;
4034		while (*chptr2 && *chptr2 != '[')
4035		chptr2++;
4036		if (!*chptr2)
4037		break;
4038
4039		/* yank off the numbers at the end */
4040		chptr2--;
4041		while (isdigit(*chptr2) && chptr2 > chptr)
4042		chptr2--;
4043		chptr2++;
4044		*chptr2 = '\0';
4045
4046		/* Better, now we need the /dev/ back. We're
4047		* done with everything before this point, so
4048		* we can just put the /dev/ part there.
4049		* There will always be room. */
4050		memcpy(chptr - 5, "/dev/", 5);
4051		rc = checkDeviceBootloader(chptr - 5, boot);
4052		if (rc != 2) {
4053		return rc;
4054		}
4055
4056		chptr = chptr2 + 1;
4057		/* skip the [11] bit */
4058		while (*chptr && !isspace(*chptr))
4059		chptr++;
4060		/* and move to the next one */
4061		while (*chptr && isspace(*chptr))
4062		chptr++;
4063		}
4064
4065		/*  we're good to go */
4066		return 2;
4067		}
4068
4069		chptr = end + 1;
4070		}
4071
4072		fprintf(stderr,
4073		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4074		mdDev);
4075		return 0;
4076		}
4077
4078		int checkForLilo(struct grubConfig *config)
4079		{
4080		int fd;
4081		unsigned char boot[512];
4082		struct singleLine *line;
4083
4084		for (line = config->theLines; line; line = line->next)
4085		if (line->type == LT_BOOT)
4086		break;
4087
4088		if (!line) {
4089		fprintf(stderr,
4090		_
4091		("grubby: no boot line found in lilo configuration\n"));
4092		return 1;
4093		}
4094
4095		if (line->numElements != 2)
4096		return 1;
4097
4098		fd = open("/boot/boot.b", O_RDONLY);
4099		if (fd < 0) {
4100		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4101		"/boot/boot.b", strerror(errno));
4102		return 1;
4103		}
4104
4105		if (read(fd, boot, 512) != 512) {
4106		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4107		"/boot/boot.b", strerror(errno));
4108		return 1;
4109		}
4110		close(fd);
4111
4112		if (!strncmp("/dev/md", line->elements[1].item, 7))
4113		return checkLiloOnRaid(line->elements[1].item, boot);
4114
4115		return checkDeviceBootloader(line->elements[1].item, boot);
4116		}
4117
4118		int checkForGrub2(struct grubConfig *config)
4119		{
4120		if (!access("/etc/grub.d/", R_OK))
4121		return 2;
4122
4123		return 1;
4124		}
4125
4126		int checkForGrub(struct grubConfig *config)
4127		{
4128		int fd;
4129		unsigned char bootSect[512];
4130		char *boot;
4131		int onSuse = isSuseSystem();
4132
4133		if (onSuse) {
4134		if (parseSuseGrubConf(NULL, &boot))
4135		return 0;
4136		} else {
4137		if (parseSysconfigGrub(NULL, &boot))
4138		return 0;
4139		}
4140
4141		/* assume grub is not installed -- not an error condition */
4142		if (!boot)
4143		return 0;
4144
4145		fd = open("/boot/grub/stage1", O_RDONLY);
4146		if (fd < 0)
4147		/* this doesn't exist if grub hasn't been installed */
4148		return 0;
4149
4150		if (read(fd, bootSect, 512) != 512) {
4151		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4152		"/boot/grub/stage1", strerror(errno));
4153		close(fd);
4154		return 1;
4155		}
4156		close(fd);
4157
4158		/* The more elaborate checks do not work on SuSE. The checks done
4159		* seem to be reasonble (at least for now), so just return success
4160		*/
4161		if (onSuse)
4162		return 2;
4163
4164		return checkDeviceBootloader(boot, bootSect);
4165		}
4166
4167		int checkForExtLinux(struct grubConfig *config)
4168		{
4169		int fd;
4170		unsigned char bootSect[512];
4171		char *boot;
4172		char executable[] = "/boot/extlinux/extlinux";
4173
4174		printf("entered: checkForExtLinux()\n");
4175
4176		if (parseSysconfigGrub(NULL, &boot))
4177		return 0;
4178
4179		/* assume grub is not installed -- not an error condition */
4180		if (!boot)
4181		return 0;
4182
4183		fd = open(executable, O_RDONLY);
4184		if (fd < 0)
4185		/* this doesn't exist if grub hasn't been installed */
4186		return 0;
4187
4188		if (read(fd, bootSect, 512) != 512) {
4189		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4190		executable, strerror(errno));
4191		return 1;
4192		}
4193		close(fd);
4194
4195		return checkDeviceBootloader(boot, bootSect);
4196		}
4197
4198		int checkForYaboot(struct grubConfig *config)
4199		{
4200		/*
4201		* This is a simplistic check that we consider good enough for own puporses
4202		*
4203		* If we were to properly check if yaboot is *installed* we'd need to:
4204		* 1) get the system boot device (LT_BOOT)
4205		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4206		*    the content on the boot device
4207		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4208		* 4) check again if binary and boot device contents match
4209		*/
4210		if (!access("/etc/yaboot.conf", R_OK))
4211		return 2;
4212
4213		return 1;
4214		}
4215
4216		int checkForElilo(struct grubConfig *config)
4217		{
4218		if (!access("/etc/elilo.conf", R_OK))
4219		return 2;
4220
4221		return 1;
4222		}
4223
4224		static char *getRootSpecifier(char *str)
4225		{
4226		char *idx, *rootspec = NULL;
4227
4228		if (*str == '(') {
4229		idx = rootspec = strdup(str);
4230		while (*idx && (*idx != ')') && (!isspace(*idx)))
4231		idx++;
4232		*(++idx) = '\0';
4233		}
4234		return rootspec;
4235		}
4236
4237		static char *getInitrdVal(struct grubConfig *config,
4238		const char *prefix, struct singleLine *tmplLine,
4239		const char *newKernelInitrd,
4240		const char **extraInitrds, int extraInitrdCount)
4241		{
4242		char *initrdVal, *end;
4243		int i;
4244		size_t totalSize;
4245		size_t prefixLen;
4246		char separatorChar;
4247
4248		prefixLen = strlen(prefix);
4249		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4250
4251		for (i = 0; i < extraInitrdCount; i++) {
4252		totalSize += sizeof(separatorChar);
4253		totalSize += strlen(extraInitrds[i]) - prefixLen;
4254		}
4255
4256		initrdVal = end = malloc(totalSize);
4257
4258		end = stpcpy(end, newKernelInitrd + prefixLen);
4259
4260		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4261		for (i = 0; i < extraInitrdCount; i++) {
4262		const char *extraInitrd;
4263		int j;
4264
4265		extraInitrd = extraInitrds[i] + prefixLen;
4266		/* Don't add entries that are already there */
4267		if (tmplLine != NULL) {
4268		for (j = 2; j < tmplLine->numElements; j++)
4269		if (strcmp
4270		(extraInitrd,
4271		tmplLine->elements[j].item) == 0)
4272		break;
4273
4274		if (j != tmplLine->numElements)
4275		continue;
4276		}
4277
4278		*end++ = separatorChar;
4279		end = stpcpy(end, extraInitrd);
4280		}
4281
4282		return initrdVal;
4283		}
4284
4285		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4286		const char *prefix,
4287		const char *newKernelPath, const char *newKernelTitle,
4288		const char *newKernelArgs, const char *newKernelInitrd,
4289		const char **extraInitrds, int extraInitrdCount,
4290		const char *newMBKernel, const char *newMBKernelArgs,
4291		const char *newDevTreePath, int newIndex)
4292		{
4293		struct singleEntry *new, *entry, *prev = NULL;
4294		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4295		int needs;
4296		char *indexs;
4297		char *chptr;
4298		int rc;
4299
4300		if (!newKernelPath)
4301		return 0;
4302
4303		rc = asprintf(&indexs, "%d", newIndex);
4304		if (rc < 0)
4305		return 1;
4306
4307		/* if the newKernelTitle is too long silently munge it into something
4308		* we can live with. truncating is first check, then we'll just mess with
4309		* it until it looks better */
4310		if (config->cfi->maxTitleLength &&
4311		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4312		char *buf = alloca(config->cfi->maxTitleLength + 7);
4313		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4314		int i = 1;
4315
4316		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4317		newKernelTitle);
4318		while (findEntryByPath(config, buf, NULL, NULL)) {
4319		sprintf(numBuf, "%d", i++);
4320		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4321		}
4322
4323		newKernelTitle = buf + 6;
4324		}
4325
4326		new = malloc(sizeof(*new));
4327		new->skip = 0;
4328		new->multiboot = 0;
4329		new->lines = NULL;
4330		entry = config->entries;
4331		for (unsigned int i = 0; i < newIndex; i++) {
4332		if (!entry)
4333		break;
4334		prev = entry;
4335		entry = entry->next;
4336		}
4337		new->next = entry;
4338
4339		if (prev)
4340		prev->next = new;
4341		else
4342		config->entries = new;
4343
4344		/* copy/update from the template */
4345		needs = NEED_KERNEL | NEED_TITLE;
4346		if (newKernelInitrd)
4347		needs |= NEED_INITRD;
4348		if (newMBKernel) {
4349		needs |= NEED_MB;
4350		new->multiboot = 1;
4351		}
4352		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4353		needs |= NEED_DEVTREE;
4354
4355		if (template) {
4356		for (masterLine = template->lines;
4357		masterLine && (tmplLine = lineDup(masterLine));
4358		lineFree(tmplLine), masterLine = masterLine->next) {
4359		dbgPrintf("addNewKernel processing %d\n",
4360		tmplLine->type);
4361
4362		/* skip comments */
4363		chptr = tmplLine->indent;
4364		while (*chptr && isspace(*chptr))
4365		chptr++;
4366		if (*chptr == '#')
4367		continue;
4368
4369		if (iskernel(tmplLine->type)
4370		&& tmplLine->numElements >= 2) {
4371		if (!template->multiboot && (needs & NEED_MB)) {
4372		/* it's not a multiboot template and
4373		* this is the kernel line.  Try to
4374		* be intelligent about inserting the
4375		* hypervisor at the same time.
4376		*/
4377		if (config->cfi->mbHyperFirst) {
4378		/* insert the hypervisor first */
4379		newLine =
4380		addLine(new, config->cfi,
4381		LT_HYPER,
4382		tmplLine->indent,
4383		newMBKernel +
4384		strlen(prefix));
4385		/* set up for adding the
4386		* kernel line */
4387		free(tmplLine->indent);
4388		tmplLine->indent =
4389		strdup(config->
4390		secondaryIndent);
4391		needs &= ~NEED_MB;
4392		}
4393		if (needs & NEED_KERNEL) {
4394		/* use addLineTmpl to
4395		* preserve line elements,
4396		* otherwise we could just
4397		* call addLine.
4398		* Unfortunately this means
4399		* making some changes to the
4400		* template such as the
4401		* indent change above and
4402		* the type change below.
4403		*/
4404		struct keywordTypes *mbm_kw =
4405		getKeywordByType
4406		(LT_MBMODULE, config->cfi);
4407		if (mbm_kw) {
4408		tmplLine->type =
4409		LT_MBMODULE;
4410		free(tmplLine->
4411		elements[0].item);
4412		tmplLine->elements[0].
4413		item =
4414		strdup(mbm_kw->key);
4415		}
4416		newLine =
4417		addLineTmpl(new, tmplLine,
4418		newLine,
4419		newKernelPath +
4420		strlen(prefix),
4421		config->cfi);
4422		needs &= ~NEED_KERNEL;
4423		}
4424		if (needs & NEED_MB) { /* !mbHyperFirst */
4425		newLine =
4426		addLine(new, config->cfi,
4427		LT_HYPER,
4428		config->
4429		secondaryIndent,
4430		newMBKernel +
4431		strlen(prefix));
4432		needs &= ~NEED_MB;
4433		}
4434		} else if (needs & NEED_KERNEL) {
4435		newLine =
4436		addLineTmpl(new, tmplLine, newLine,
4437		newKernelPath +
4438		strlen(prefix),
4439		config->cfi);
4440		needs &= ~NEED_KERNEL;
4441		}
4442
4443		} else if (tmplLine->type == LT_HYPER &&
4444		tmplLine->numElements >= 2) {
4445		if (needs & NEED_MB) {
4446		newLine =
4447		addLineTmpl(new, tmplLine, newLine,
4448		newMBKernel +
4449		strlen(prefix),
4450		config->cfi);
4451		needs &= ~NEED_MB;
4452		}
4453
4454		} else if (tmplLine->type == LT_MBMODULE &&
4455		tmplLine->numElements >= 2) {
4456		if (new->multiboot) {
4457		if (needs & NEED_KERNEL) {
4458		newLine =
4459		addLineTmpl(new, tmplLine,
4460		newLine,
4461		newKernelPath +
4462		strlen(prefix),
4463		config->cfi);
4464		needs &= ~NEED_KERNEL;
4465		} else if (config->cfi->mbInitRdIsModule
4466		&& (needs & NEED_INITRD)) {
4467		char *initrdVal;
4468		initrdVal =
4469		getInitrdVal(config, prefix,
4470		tmplLine,
4471		newKernelInitrd,
4472		extraInitrds,
4473		extraInitrdCount);
4474		newLine =
4475		addLineTmpl(new, tmplLine,
4476		newLine,
4477		initrdVal,
4478		config->cfi);
4479		free(initrdVal);
4480		needs &= ~NEED_INITRD;
4481		}
4482		} else if (needs & NEED_KERNEL) {
4483		/* template is multi but new is not,
4484		* insert the kernel in the first
4485		* module slot
4486		*/
4487		tmplLine->type =
4488		preferredLineType(LT_KERNEL,
4489		config->cfi);
4490		free(tmplLine->elements[0].item);
4491		tmplLine->elements[0].item =
4492		strdup(getKeywordByType
4493		(tmplLine->type,
4494		config->cfi)->key);
4495		newLine =
4496		addLineTmpl(new, tmplLine, newLine,
4497		newKernelPath +
4498		strlen(prefix),
4499		config->cfi);
4500		needs &= ~NEED_KERNEL;
4501		} else if (needs & NEED_INITRD) {
4502		char *initrdVal;
4503		/* template is multi but new is not,
4504		* insert the initrd in the second
4505		* module slot
4506		*/
4507		tmplLine->type =
4508		preferredLineType(LT_INITRD,
4509		config->cfi);
4510		free(tmplLine->elements[0].item);
4511		tmplLine->elements[0].item =
4512		strdup(getKeywordByType
4513		(tmplLine->type,
4514		config->cfi)->key);
4515		initrdVal =
4516		getInitrdVal(config, prefix,
4517		tmplLine,
4518		newKernelInitrd,
4519		extraInitrds,
4520		extraInitrdCount);
4521		newLine =
4522		addLineTmpl(new, tmplLine, newLine,
4523		initrdVal, config->cfi);
4524		free(initrdVal);
4525		needs &= ~NEED_INITRD;
4526		}
4527
4528		} else if (isinitrd(tmplLine->type)
4529		&& tmplLine->numElements >= 2) {
4530		if (needs & NEED_INITRD && new->multiboot
4531		&& !template->multiboot
4532		&& config->cfi->mbInitRdIsModule) {
4533		/* make sure we don't insert the
4534		* module initrd before the module
4535		* kernel... if we don't do it here,
4536		* it will be inserted following the
4537		* template.
4538		*/
4539		if (!needs & NEED_KERNEL) {
4540		char *initrdVal;
4541
4542		initrdVal =
4543		getInitrdVal(config, prefix,
4544		tmplLine,
4545		newKernelInitrd,
4546		extraInitrds,
4547		extraInitrdCount);
4548		newLine =
4549		addLine(new, config->cfi,
4550		LT_MBMODULE,
4551		config->
4552		secondaryIndent,
4553		initrdVal);
4554		free(initrdVal);
4555		needs &= ~NEED_INITRD;
4556		}
4557		} else if (needs & NEED_INITRD) {
4558		char *initrdVal;
4559		initrdVal =
4560		getInitrdVal(config, prefix,
4561		tmplLine,
4562		newKernelInitrd,
4563		extraInitrds,
4564		extraInitrdCount);
4565		newLine =
4566		addLineTmpl(new, tmplLine, newLine,
4567		initrdVal, config->cfi);
4568		free(initrdVal);
4569		needs &= ~NEED_INITRD;
4570		}
4571
4572		} else if (tmplLine->type == LT_MENUENTRY &&
4573		(needs & NEED_TITLE)) {
4574		requote(tmplLine, config->cfi);
4575		char *nkt = malloc(strlen(newKernelTitle) + 3);
4576		strcpy(nkt, "'");
4577		strcat(nkt, newKernelTitle);
4578		strcat(nkt, "'");
4579		newLine =
4580		addLineTmpl(new, tmplLine, newLine, nkt,
4581		config->cfi);
4582		free(nkt);
4583		needs &= ~NEED_TITLE;
4584		} else if (tmplLine->type == LT_TITLE &&
4585		(needs & NEED_TITLE)) {
4586		if (tmplLine->numElements >= 2) {
4587		newLine =
4588		addLineTmpl(new, tmplLine, newLine,
4589		newKernelTitle,
4590		config->cfi);
4591		needs &= ~NEED_TITLE;
4592		} else if (tmplLine->numElements == 1 &&
4593		config->cfi->titleBracketed) {
4594		/* addLineTmpl doesn't handle
4595		* titleBracketed */
4596		newLine =
4597		addLine(new, config->cfi, LT_TITLE,
4598		tmplLine->indent,
4599		newKernelTitle);
4600		needs &= ~NEED_TITLE;
4601		}
4602		} else if (tmplLine->type == LT_ECHO) {
4603		requote(tmplLine, config->cfi);
4604		static const char *prefix = "'Loading ";
4605		if (tmplLine->numElements > 1 &&
4606		strstr(tmplLine->elements[1].item, prefix)
4607		&& masterLine->next
4608		&& iskernel(masterLine->next->type)) {
4609		char *newTitle =
4610		malloc(strlen(prefix) +
4611		strlen(newKernelTitle) + 2);
4612
4613		strcpy(newTitle, prefix);
4614		strcat(newTitle, newKernelTitle);
4615		strcat(newTitle, "'");
4616		newLine =
4617		addLine(new, config->cfi, LT_ECHO,
4618		tmplLine->indent, newTitle);
4619		free(newTitle);
4620		} else {
4621		/* pass through other lines from the
4622		* template */
4623		newLine =
4624		addLineTmpl(new, tmplLine, newLine,
4625		NULL, config->cfi);
4626		}
4627		} else if (tmplLine->type == LT_DEVTREE &&
4628		tmplLine->numElements == 2
4629		&& newDevTreePath) {
4630		newLine =
4631		addLineTmpl(new, tmplLine, newLine,
4632		newDevTreePath + strlen(prefix),
4633		config->cfi);
4634		needs &= ~NEED_DEVTREE;
4635		} else if (tmplLine->type == LT_ENTRY_END
4636		&& needs & NEED_DEVTREE) {
4637		const char *ndtp = newDevTreePath;
4638		if (!strncmp
4639		(newDevTreePath, prefix, strlen(prefix)))
4640		ndtp += strlen(prefix);
4641		newLine = addLine(new, config->cfi, LT_DEVTREE,
4642		config->secondaryIndent,
4643		ndtp);
4644		needs &= ~NEED_DEVTREE;
4645		newLine =
4646		addLineTmpl(new, tmplLine, newLine, NULL,
4647		config->cfi);
4648		} else {
4649		/* pass through other lines from the template */
4650		newLine =
4651		addLineTmpl(new, tmplLine, newLine, NULL,
4652		config->cfi);
4653		}
4654		}
4655
4656		} else {
4657		/* don't have a template, so start the entry with the
4658		* appropriate starting line
4659		*/
4660		switch (config->cfi->entryStart) {
4661		case LT_KERNEL:
4662		case LT_KERNEL_EFI:
4663		case LT_KERNEL_16:
4664		if (new->multiboot && config->cfi->mbHyperFirst) {
4665		/* fall through to LT_HYPER */
4666		} else {
4667		newLine = addLine(new, config->cfi,
4668		preferredLineType(LT_KERNEL,
4669		config->
4670		cfi),
4671		config->primaryIndent,
4672		newKernelPath +
4673		strlen(prefix));
4674		needs &= ~NEED_KERNEL;
4675		break;
4676		}
4677
4678		case LT_HYPER:
4679		newLine = addLine(new, config->cfi, LT_HYPER,
4680		config->primaryIndent,
4681		newMBKernel + strlen(prefix));
4682		needs &= ~NEED_MB;
4683		break;
4684
4685		case LT_MENUENTRY:{
4686		char *nkt = malloc(strlen(newKernelTitle) + 3);
4687		strcpy(nkt, "'");
4688		strcat(nkt, newKernelTitle);
4689		strcat(nkt, "'");
4690		newLine =
4691		addLine(new, config->cfi, LT_MENUENTRY,
4692		config->primaryIndent, nkt);
4693		free(nkt);
4694		needs &= ~NEED_TITLE;
4695		needs |= NEED_END;
4696		break;
4697		}
4698		case LT_TITLE:
4699		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4700		char *templabel;
4701		int x = 0, y = 0;
4702
4703		templabel = strdup(newKernelTitle);
4704		while (templabel[x]) {
4705		if (templabel[x] == ' ') {
4706		y = x;
4707		while (templabel[y]) {
4708		templabel[y] =
4709		templabel[y + 1];
4710		y++;
4711		}
4712		}
4713		x++;
4714		}
4715		newLine = addLine(new, config->cfi, LT_TITLE,
4716		config->primaryIndent,
4717		templabel);
4718		free(templabel);
4719		} else {
4720		newLine = addLine(new, config->cfi, LT_TITLE,
4721		config->primaryIndent,
4722		newKernelTitle);
4723		}
4724		needs &= ~NEED_TITLE;
4725		break;
4726
4727		default:
4728		abort();
4729		}
4730		}
4731
4732		struct singleLine *endLine = NULL;
4733		endLine = getLineByType(LT_ENTRY_END, new->lines);
4734		if (endLine) {
4735		removeLine(new, endLine);
4736		needs |= NEED_END;
4737		}
4738
4739		/* add the remainder of the lines, i.e. those that either
4740		* weren't present in the template, or in the case of no template,
4741		* all the lines following the entryStart.
4742		*/
4743		if (needs & NEED_TITLE) {
4744		newLine = addLine(new, config->cfi, LT_TITLE,
4745		config->secondaryIndent, newKernelTitle);
4746		needs &= ~NEED_TITLE;
4747		}
4748		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4749		newLine = addLine(new, config->cfi, LT_HYPER,
4750		config->secondaryIndent,
4751		newMBKernel + strlen(prefix));
4752		needs &= ~NEED_MB;
4753		}
4754		if (needs & NEED_KERNEL) {
4755		newLine = addLine(new, config->cfi,
4756		(new->multiboot
4757		&& getKeywordByType(LT_MBMODULE,
4758		config->cfi))
4759		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4760		config->
4761		cfi),
4762		config->secondaryIndent,
4763		newKernelPath + strlen(prefix));
4764		needs &= ~NEED_KERNEL;
4765		}
4766		if (needs & NEED_MB) {
4767		newLine = addLine(new, config->cfi, LT_HYPER,
4768		config->secondaryIndent,
4769		newMBKernel + strlen(prefix));
4770		needs &= ~NEED_MB;
4771		}
4772		if (needs & NEED_INITRD) {
4773		char *initrdVal;
4774		initrdVal =
4775		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4776		extraInitrds, extraInitrdCount);
4777		newLine =
4778		addLine(new, config->cfi,
4779		(new->multiboot
4780		&& getKeywordByType(LT_MBMODULE, config->cfi))
4781		? LT_MBMODULE : preferredLineType(LT_INITRD,
4782		config->cfi),
4783		config->secondaryIndent, initrdVal);
4784		free(initrdVal);
4785		needs &= ~NEED_INITRD;
4786		}
4787		if (needs & NEED_DEVTREE) {
4788		newLine = addLine(new, config->cfi, LT_DEVTREE,
4789		config->secondaryIndent, newDevTreePath);
4790		needs &= ~NEED_DEVTREE;
4791		}
4792
4793		/* NEEDS_END must be last on bootloaders that need it... */
4794		if (needs & NEED_END) {
4795		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4796		config->secondaryIndent, NULL);
4797		needs &= ~NEED_END;
4798		}
4799
4800		if (needs) {
4801		printf(_("grubby: needs=%d, aborting\n"), needs);
4802		abort();
4803		}
4804
4805		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4806		newMBKernelArgs, NULL)) {
4807		config->isModified = 1;
4808		return 1;
4809		}
4810
4811		return 0;
4812		}
4813
4814		int main(int argc, const char **argv)
4815		{
4816		poptContext optCon;
4817		const char *grubConfig = NULL;
4818		char *outputFile = NULL;
4819		int arg = 0;
4820		int flags = 0;
4821		int badImageOkay = 0;
4822		int configureGrub2 = 0;
4823		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4824		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4825		int configureExtLinux = 0;
4826		int bootloaderProbe = 0;
4827		int extraInitrdCount = 0;
4828		char *updateKernelPath = NULL;
4829		char *newKernelPath = NULL;
4830		char *removeKernelPath = NULL;
4831		char *newKernelArgs = NULL;
4832		char *newKernelInitrd = NULL;
4833		char *newKernelTitle = NULL;
4834		char *newDevTreePath = NULL;
4835		char *newMBKernel = NULL;
4836		char *newMBKernelArgs = NULL;
4837		int newIndex = 0;
4838		char *removeMBKernelArgs = NULL;
4839		char *removeMBKernel = NULL;
4840		char *bootPrefix = NULL;
4841		char *defaultKernel = NULL;
4842		char *removeArgs = NULL;
4843		char *kernelInfo = NULL;
4844		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4845		char *envPath = NULL;
4846		const char *chptr = NULL;
4847		struct configFileInfo *cfi = NULL;
4848		struct grubConfig *config;
4849		struct singleEntry *template = NULL;
4850		int copyDefault = 0, makeDefault = 0;
4851		int displayDefault = 0;
4852		int displayDefaultIndex = 0;
4853		int displayDefaultTitle = 0;
4854		int defaultIndex = -1;
4855		struct poptOption options[] = {
4856		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4857		_("add an entry for the specified kernel"), _("kernel-path")},
4858		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4859		_("add an entry for the specified multiboot kernel"), NULL},
4860		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4861		_("default arguments for the new kernel or new arguments for "
4862		"kernel being updated"), _("args")},
4863		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4864		_("default arguments for the new multiboot kernel or "
4865		"new arguments for multiboot kernel being updated"), NULL},
4866		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4867		_
4868		("don't sanity check images in boot entries (for testing only)"),
4869		NULL},
4870		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4871		_
4872		("filesystem which contains /boot directory (for testing only)"),
4873		_("bootfs")},
4874		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4875		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4876		_("check which bootloader is installed on boot sector")},
4877		#endif
4878		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4879		_("path to grub config file to update (\"-\" for stdin)"),
4880		_("path")},
4881		{"copy-default", 0, 0, &copyDefault, 0,
4882		_("use the default boot entry as a template for the new entry "
4883		"being added; if the default is not a linux image, or if "
4884		"the kernel referenced by the default image does not exist, "
4885		"the first linux entry whose kernel does exist is used as the "
4886		"template"), NULL},
4887		{"debug", 0, 0, &debug, 0,
4888		_("print debugging information for failures")},
4889		{"default-kernel", 0, 0, &displayDefault, 0,
4890		_("display the path of the default kernel")},
4891		{"default-index", 0, 0, &displayDefaultIndex, 0,
4892		_("display the index of the default kernel")},
4893		{"default-title", 0, 0, &displayDefaultTitle, 0,
4894		_("display the title of the default kernel")},
4895		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4896		_("device tree file for new stanza"), _("dtb-path")},
4897		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4898		_("device tree directory for new stanza"), _("dtb-path")},
4899		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4900		_("configure elilo bootloader")},
4901		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4902		_("force grub2 stanzas to use efi")},
4903		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4904		_("path for environment data"),
4905		_("path")},
4906		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4907		_("configure extlinux bootloader (from syslinux)")},
4908		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4909		_("configure grub bootloader")},
4910		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4911		_("configure grub2 bootloader")},
4912		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4913		_("display boot information for specified kernel"),
4914		_("kernel-path")},
4915		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4916		_("initrd image for the new kernel"), _("initrd-path")},
4917		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4918		_
4919		("auxiliary initrd image for things other than the new kernel"),
4920		_("initrd-path")},
4921		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4922		_("configure lilo bootloader")},
4923		{"make-default", 0, 0, &makeDefault, 0,
4924		_("make the newly added entry the default boot entry"), NULL},
4925		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4926		_("path to output updated config file (\"-\" for stdout)"),
4927		_("path")},
4928		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4929		_("remove kernel arguments"), NULL},
4930		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4931		_("remove multiboot kernel arguments"), NULL},
4932		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4933		_("remove all entries for the specified kernel"),
4934		_("kernel-path")},
4935		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4936		_("remove all entries for the specified multiboot kernel"),
4937		NULL},
4938		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4939		_("make the first entry referencing the specified kernel "
4940		"the default"), _("kernel-path")},
4941		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4942		_("make the given entry index the default entry"),
4943		_("entry-index")},
4944		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4945		_("use the given index when creating a new entry"),
4946		_("entry-index")},
4947		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4948		_("configure silo bootloader")},
4949		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4950		_("title to use for the new kernel entry"), _("entry-title")},
4951		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4952		_("updated information for the specified kernel"),
4953		_("kernel-path")},
4954		{"version", 'v', 0, NULL, 'v',
4955		_("print the version of this program and exit"), NULL},
4956		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4957		_("configure yaboot bootloader")},
4958		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4959		_("configure zipl bootloader")},
4960		POPT_AUTOHELP {0, 0, 0, 0, 0}
4961		};
4962
4963		useextlinuxmenu = 0;
4964
4965		int i = 0;
4966		for (int j = 1; j < argc; j++)
4967		i += strlen(argv[j]) + 1;
4968		saved_command_line = malloc(i);
4969		if (!saved_command_line) {
4970		fprintf(stderr, "grubby: %m\n");
4971		exit(1);
4972		}
4973		saved_command_line[0] = '\0';
4974		for (int j = 1; j < argc; j++) {
4975		strcat(saved_command_line, argv[j]);
4976		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4977		}
4978
4979		optCon = poptGetContext("grubby", argc, argv, options, 0);
4980		poptReadDefaultConfig(optCon, 1);
4981
4982		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4983		switch (arg) {
4984		case 'v':
4985		printf("grubby version %s\n", VERSION);
4986		exit(0);
4987		break;
4988		case 'i':
4989		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4990		extraInitrds[extraInitrdCount++] =
4991		strdup(poptGetOptArg(optCon));
4992		} else {
4993		fprintf(stderr,
4994		_
4995		("grubby: extra initrd maximum is %d\n"),
4996		extraInitrdCount);
4997		return 1;
4998		}
4999		break;
5000		}
5001		}
5002
5003		if (arg < -1) {
5004		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5005		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5006		poptStrerror(arg));
5007		return 1;
5008		}
5009
5010		if ((chptr = poptGetArg(optCon))) {
5011		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5012		return 1;
5013		}
5014
5015		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5016		configureYaboot + configureSilo + configureZipl +
5017		configureExtLinux) > 1) {
5018		fprintf(stderr,
5019		_("grubby: cannot specify multiple bootloaders\n"));
5020		return 1;
5021		} else if (bootloaderProbe && grubConfig) {
5022		fprintf(stderr,
5023		_
5024		("grubby: cannot specify config file with --bootloader-probe\n"));
5025		return 1;
5026		} else if (configureGrub2) {
5027		cfi = &grub2ConfigType;
5028		if (envPath)
5029		cfi->envFile = envPath;
5030		} else if (configureLilo) {
5031		cfi = &liloConfigType;
5032		} else if (configureGrub) {
5033		cfi = &grubConfigType;
5034		} else if (configureELilo) {
5035		cfi = &eliloConfigType;
5036		} else if (configureYaboot) {
5037		cfi = &yabootConfigType;
5038		} else if (configureSilo) {
5039		cfi = &siloConfigType;
5040		} else if (configureZipl) {
5041		cfi = &ziplConfigType;
5042		} else if (configureExtLinux) {
5043		cfi = &extlinuxConfigType;
5044		useextlinuxmenu = 1;
5045		}
5046
5047		if (!cfi) {
5048		if (grub2FindConfig(&grub2ConfigType)) {
5049		cfi = &grub2ConfigType;
5050		if (envPath)
5051		cfi->envFile = envPath;
5052		} else
5053		#ifdef __ia64__
5054		cfi = &eliloConfigType;
5055		#elif __powerpc__
5056		cfi = &yabootConfigType;
5057		#elif __sparc__
5058		cfi = &siloConfigType;
5059		#elif __s390__
5060		cfi = &ziplConfigType;
5061		#elif __s390x__
5062		cfi = &ziplConfigtype;
5063		#else
5064		cfi = &grubConfigType;
5065		#endif
5066		}
5067
5068		if (!grubConfig) {
5069		if (cfi->findConfig)
5070		grubConfig = cfi->findConfig(cfi);
5071		if (!grubConfig)
5072		grubConfig = cfi->defaultConfig;
5073		}
5074
5075		if (bootloaderProbe && (displayDefault || kernelInfo ||
5076		newKernelPath || removeKernelPath || makeDefault
5077		|| defaultKernel || displayDefaultIndex
5078		|| displayDefaultTitle
5079		|| (defaultIndex >= 0))) {
5080		fprintf(stderr,
5081		_("grubby: --bootloader-probe may not be used with "
5082		"specified option"));
5083		return 1;
5084		}
5085
5086		if ((displayDefault || kernelInfo) && (newKernelPath ||
5087		removeKernelPath)) {
5088		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5089		"be used when adding or removing kernels\n"));
5090		return 1;
5091		}
5092
5093		if (newKernelPath && !newKernelTitle) {
5094		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5095		return 1;
5096		} else if (!newKernelPath && (copyDefault ||
5097		(newKernelInitrd && !updateKernelPath) ||
5098		makeDefault || extraInitrdCount > 0)) {
5099		fprintf(stderr, _("grubby: kernel path expected\n"));
5100		return 1;
5101		}
5102
5103		if (newKernelPath && updateKernelPath) {
5104		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5105		"not be used together"));
5106		return 1;
5107		}
5108
5109		if (makeDefault && defaultKernel) {
5110		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5111		"may not be used together\n"));
5112		return 1;
5113		} else if (defaultKernel && removeKernelPath &&
5114		!strcmp(defaultKernel, removeKernelPath)) {
5115		fprintf(stderr,
5116		_("grubby: cannot make removed kernel the default\n"));
5117		return 1;
5118		} else if (defaultKernel && newKernelPath &&
5119		!strcmp(defaultKernel, newKernelPath)) {
5120		makeDefault = 1;
5121		defaultKernel = NULL;
5122		} else if (defaultKernel && (defaultIndex >= 0)) {
5123		fprintf(stderr,
5124		_("grubby: --set-default and --set-default-index "
5125		"may not be used together\n"));
5126		return 1;
5127		}
5128
5129		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5130		fprintf(stderr,
5131		_("grubby: output file must be specified if stdin "
5132		"is used\n"));
5133		return 1;
5134		}
5135
5136		if (!removeKernelPath && !newKernelPath && !displayDefault
5137		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5138		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5139		&& !displayDefaultTitle && (defaultIndex == -1)) {
5140		fprintf(stderr, _("grubby: no action specified\n"));
5141		return 1;
5142		}
5143
5144		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5145
5146		if (cfi->needsBootPrefix) {
5147		if (!bootPrefix) {
5148		bootPrefix = findBootPrefix();
5149		if (!bootPrefix)
5150		return 1;
5151		} else {
5152		/* this shouldn't end with a / */
5153		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5154		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5155		}
5156		} else {
5157		bootPrefix = "";
5158		}
5159
5160		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5161		fprintf(stderr,
5162		_("grubby: %s doesn't allow multiple initrds\n"),
5163		cfi->defaultConfig);
5164		return 1;
5165		}
5166
5167		if (bootloaderProbe) {
5168		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5169		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5170
5171		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5172		if (grub2config) {
5173		gconfig = readConfig(grub2config, &grub2ConfigType);
5174		if (!gconfig)
5175		gr2c = 1;
5176		else
5177		gr2c = checkForGrub2(gconfig);
5178		}
5179
5180		const char *grubconfig = grubFindConfig(&grubConfigType);
5181		if (!access(grubconfig, F_OK)) {
5182		gconfig = readConfig(grubconfig, &grubConfigType);
5183		if (!gconfig)
5184		grc = 1;
5185		else
5186		grc = checkForGrub(gconfig);
5187		}
5188
5189		if (!access(liloConfigType.defaultConfig, F_OK)) {
5190		lconfig =
5191		readConfig(liloConfigType.defaultConfig,
5192		&liloConfigType);
5193		if (!lconfig)
5194		lrc = 1;
5195		else
5196		lrc = checkForLilo(lconfig);
5197		}
5198
5199		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5200		econfig = readConfig(eliloConfigType.defaultConfig,
5201		&eliloConfigType);
5202		if (!econfig)
5203		erc = 1;
5204		else
5205		erc = checkForElilo(econfig);
5206		}
5207
5208		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5209		lconfig =
5210		readConfig(extlinuxConfigType.defaultConfig,
5211		&extlinuxConfigType);
5212		if (!lconfig)
5213		extrc = 1;
5214		else
5215		extrc = checkForExtLinux(lconfig);
5216		}
5217
5218		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5219		yconfig = readConfig(yabootConfigType.defaultConfig,
5220		&yabootConfigType);
5221		if (!yconfig)
5222		yrc = 1;
5223		else
5224		yrc = checkForYaboot(yconfig);
5225		}
5226
5227		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5228		|| erc == 1)
5229		return 1;
5230
5231		if (lrc == 2)
5232		printf("lilo\n");
5233		if (gr2c == 2)
5234		printf("grub2\n");
5235		if (grc == 2)
5236		printf("grub\n");
5237		if (extrc == 2)
5238		printf("extlinux\n");
5239		if (yrc == 2)
5240		printf("yaboot\n");
5241		if (erc == 2)
5242		printf("elilo\n");
5243
5244		return 0;
5245		}
5246
5247		if (grubConfig == NULL) {
5248		printf("Could not find bootloader configuration file.\n");
5249		exit(1);
5250		}
5251
5252		config = readConfig(grubConfig, cfi);
5253		if (!config)
5254		return 1;
5255
5256		if (displayDefault) {
5257		struct singleLine *line;
5258		struct singleEntry *entry;
5259		char *rootspec;
5260
5261		if (config->defaultImage == NO_DEFAULT_ENTRY)
5262		return 0;
5263		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5264		cfi->defaultIsSaved)
5265		config->defaultImage = FIRST_ENTRY_INDEX;
5266		entry = findEntryByIndex(config, config->defaultImage);
5267		if (!entry)
5268		return 0;
5269		if (!suitableImage(entry, bootPrefix, 0, flags))
5270		return 0;
5271
5272		line =
5273		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5274		LT_KERNEL_16, entry->lines);
5275		if (!line)
5276		return 0;
5277
5278		rootspec = getRootSpecifier(line->elements[1].item);
5279		printf("%s%s\n", bootPrefix, line->elements[1].item +
5280		((rootspec != NULL) ? strlen(rootspec) : 0));
5281
5282		return 0;
5283
5284		} else if (displayDefaultTitle) {
5285		struct singleLine *line;
5286		struct singleEntry *entry;
5287
5288		if (config->defaultImage == NO_DEFAULT_ENTRY)
5289		return 0;
5290		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5291		cfi->defaultIsSaved)
5292		config->defaultImage = FIRST_ENTRY_INDEX;
5293		entry = findEntryByIndex(config, config->defaultImage);
5294		if (!entry)
5295		return 0;
5296
5297		if (!configureGrub2) {
5298		char *title;
5299		line = getLineByType(LT_TITLE, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = extractTitle(config, line);
5303		if (!title)
5304		return 0;
5305		printf("%s\n", title);
5306		free(title);
5307		} else {
5308		char *title;
5309
5310		dbgPrintf
5311		("This is GRUB2, default title is embeded in menuentry\n");
5312		line = getLineByType(LT_MENUENTRY, entry->lines);
5313		if (!line)
5314		return 0;
5315		title = grub2ExtractTitle(line);
5316		if (title)
5317		printf("%s\n", title);
5318		}
5319		return 0;
5320
5321		} else if (displayDefaultIndex) {
5322		if (config->defaultImage == NO_DEFAULT_ENTRY)
5323		return 0;
5324		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5325		cfi->defaultIsSaved)
5326		config->defaultImage = FIRST_ENTRY_INDEX;
5327		printf("%i\n", config->defaultImage);
5328		return 0;
5329
5330		} else if (kernelInfo)
5331		return displayInfo(config, kernelInfo, bootPrefix);
5332
5333		if (copyDefault) {
5334		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5335		if (!template)
5336		return 1;
5337		}
5338
5339		markRemovedImage(config, removeKernelPath, bootPrefix);
5340		markRemovedImage(config, removeMBKernel, bootPrefix);
5341		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5342		makeDefault, bootPrefix, flags, defaultIndex,
5343		newIndex);
5344		setFallbackImage(config, newKernelPath != NULL);
5345		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5346		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5347		return 1;
5348		if (updateKernelPath && newKernelInitrd) {
5349		if (newMBKernel) {
5350		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5351		bootPrefix, newKernelInitrd,
5352		newKernelTitle))
5353		return 1;
5354		} else {
5355		if (updateInitrd(config, updateKernelPath, bootPrefix,
5356		newKernelInitrd, newKernelTitle))
5357		return 1;
5358		}
5359		}
5360		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5361		newKernelTitle, newKernelArgs, newKernelInitrd,
5362		(const char **)extraInitrds, extraInitrdCount,
5363		newMBKernel, newMBKernelArgs, newDevTreePath,
5364		newIndex))
5365		return 1;
5366
5367		if (numEntries(config) == 0) {
5368		fprintf(stderr,
5369		_("grubby: doing this would leave no kernel entries. "
5370		"Not writing out new config.\n"));
5371		return 1;
5372		}
5373
5374	if (!outputFile)	if (!outputFile)
5375	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5376
5377	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5378	}	}

---

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Legend: Removed from v.1156   changed lines   Added in v.3025