Diff of /trunk/grubby/grubby.c

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	trunk/mkinitrd-magellan/grubby/grubby.c revision 926 by niro, Wed Oct 28 13:29:38 2009 UTC	trunk/grubby/grubby.c revision 3014 by niro, Tue Jun 27 14:34:11 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 DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
136		#define DEFAULT_SAVED_GRUB2 -3
137
138	struct keywordTypes {	struct keywordTypes {
139	char * key;	char *key;
140	enum lineType_e type;	enum lineType_e type;
141	char nextChar;	char nextChar;
142	char separatorChar;	char separatorChar;
143	};	};
144
145		struct configFileInfo;
146
147		typedef const char *(*findConfigFunc) (struct configFileInfo *);
148		typedef const int (*writeLineFunc) (struct configFileInfo *,
149		struct singleLine * line);
150		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
151		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
152
153	struct configFileInfo {	struct configFileInfo {
154	char * defaultConfig;	char *defaultConfig;
155	struct keywordTypes * keywords;	findConfigFunc findConfig;
156	int defaultIsIndex;	writeLineFunc writeLine;
157	int defaultSupportSaved;	getEnvFunc getEnv;
158	enum lineType_e entrySeparator;	setEnvFunc setEnv;
159	int needsBootPrefix;	struct keywordTypes *keywords;
160	int argsInQuotes;	int caseInsensitive;
161	int maxTitleLength;	int defaultIsIndex;
162	int titleBracketed;	int defaultIsVariable;
163	int mbHyperFirst;	int defaultSupportSaved;
164	int mbInitRdIsModule;	int defaultIsSaved;
165	int mbConcatArgs;	int defaultIsUnquoted;
166	int mbAllowExtraInitRds;	enum lineType_e entryStart;
167		enum lineType_e entryEnd;
168		int needsBootPrefix;
169		int argsInQuotes;
170		int maxTitleLength;
171		int titleBracketed;
172		int titlePosition;
173		int mbHyperFirst;
174		int mbInitRdIsModule;
175		int mbConcatArgs;
176		int mbAllowExtraInitRds;
177		char *envFile;
178	};	};
179
180	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
181	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
182	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
183	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
184	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
185	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
186	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
187	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
188	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
189	{ NULL,    0, 0 },	{NULL, 0, 0},
190	};	};
191
192		const char *grubFindConfig(struct configFileInfo *cfi)
193		{
194		static const char *configFiles[] = {
195		"/boot/grub/grub.conf",
196		"/boot/grub/menu.lst",
197		"/etc/grub.conf",
198		NULL
199		};
200		static int i = -1;
201
202		if (i == -1) {
203		for (i = 0; configFiles[i] != NULL; i++) {
204		dbgPrintf("Checking \"%s\": ", configFiles[i]);
205		if (!access(configFiles[i], R_OK)) {
206		dbgPrintf("found\n");
207		return configFiles[i];
208		}
209		dbgPrintf("not found\n");
210		}
211		}
212		return configFiles[i];
213		}
214
215	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
216	"/boot/grub/grub.conf",    /* defaultConfig */	.findConfig = grubFindConfig,
217	grubKeywords,    /* keywords */	.keywords = grubKeywords,
218	1,    /* defaultIsIndex */	.defaultIsIndex = 1,
219	1,    /* defaultSupportSaved */	.defaultSupportSaved = 1,
220	LT_TITLE,    /* entrySeparator */	.entryStart = LT_TITLE,
221	1,    /* needsBootPrefix */	.needsBootPrefix = 1,
222	0,    /* argsInQuotes */	.mbHyperFirst = 1,
223	0,    /* maxTitleLength */	.mbInitRdIsModule = 1,
224	0,                                      /* titleBracketed */	.mbAllowExtraInitRds = 1,
225	1,                                      /* mbHyperFirst */	.titlePosition = 1,
226	1,                                      /* mbInitRdIsModule */	};
227	0,                                      /* mbConcatArgs */
228	1,                                      /* mbAllowExtraInitRds */	struct keywordTypes grub2Keywords[] = {
229		{"menuentry", LT_MENUENTRY, ' '},
230		{"}", LT_ENTRY_END, ' '},
231		{"echo", LT_ECHO, ' '},
232		{"set", LT_SET_VARIABLE, ' ', '='},
233		{"root", LT_BOOTROOT, ' '},
234		{"default", LT_DEFAULT, ' '},
235		{"fallback", LT_FALLBACK, ' '},
236		{"linux", LT_KERNEL, ' '},
237		{"linuxefi", LT_KERNEL_EFI, ' '},
238		{"linux16", LT_KERNEL_16, ' '},
239		{"initrd", LT_INITRD, ' ', ' '},
240		{"initrdefi", LT_INITRD_EFI, ' ', ' '},
241		{"initrd16", LT_INITRD_16, ' ', ' '},
242		{"module", LT_MBMODULE, ' '},
243		{"kernel", LT_HYPER, ' '},
244		{"devicetree", LT_DEVTREE, ' '},
245		{NULL, 0, 0},
246		};
247
248		const char *grub2FindConfig(struct configFileInfo *cfi)
249		{
250		static const char *configFiles[] = {
251		"/boot/grub/grub-efi.cfg",
252		"/boot/grub/grub.cfg",
253		"/etc/grub2-efi.cfg",
254		"/etc/grub2.cfg",
255		"/boot/grub2/grub.cfg",
256		"/boot/grub2-efi/grub.cfg",
257		NULL
258		};
259		static int i = -1;
260		static const char *grub_cfg = "/boot/grub/grub.cfg";
261		int rc = -1;
262
263		if (i == -1) {
264		for (i = 0; configFiles[i] != NULL; i++) {
265		dbgPrintf("Checking \"%s\": ", configFiles[i]);
266		if ((rc = access(configFiles[i], R_OK))) {
267		if (errno == EACCES) {
268		printf
269		("Unable to access bootloader configuration file "
270		"\"%s\": %m\n", configFiles[i]);
271		exit(1);
272		}
273		continue;
274		} else {
275		dbgPrintf("found\n");
276		return configFiles[i];
277		}
278		}
279		}
280
281		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
282		* that isn't in grub1, and if it exists, return the config file path
283		* that they use. */
284		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
285		dbgPrintf("found\n");
286		return grub_cfg;
287		}
288
289		dbgPrintf("not found\n");
290		return configFiles[i];
291		}
292
293		/* kind of hacky.  It'll give the first 1024 bytes, ish. */
294		static char *grub2GetEnv(struct configFileInfo *info, char *name)
295		{
296		static char buf[1025];
297		char *s = NULL;
298		char *ret = NULL;
299		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
300		int rc =
301		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
302
303		if (rc < 0)
304		return NULL;
305
306		FILE *f = popen(s, "r");
307		if (!f)
308		goto out;
309
310		memset(buf, '\0', sizeof(buf));
311		ret = fgets(buf, 1024, f);
312		pclose(f);
313
314		if (ret) {
315		ret += strlen(name) + 1;
316		ret[strlen(ret) - 1] = '\0';
317		}
318		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
319		out:
320		free(s);
321		return ret;
322		}
323
324		static int sPopCount(const char *s, const char *c)
325		{
326		int ret = 0;
327		if (!s)
328		return -1;
329		for (int i = 0; s[i] != '\0'; i++)
330		for (int j = 0; c[j] != '\0'; j++)
331		if (s[i] == c[j])
332		ret++;
333		return ret;
334		}
335
336		static char *shellEscape(const char *s)
337		{
338		int l = strlen(s) + sPopCount(s, "'") * 2;
339
340		char *ret = calloc(l + 1, sizeof(*ret));
341		if (!ret)
342		return NULL;
343		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
344		if (s[i] == '\'')
345		ret[j++] = '\\';
346		ret[j] = s[i];
347		}
348		return ret;
349		}
350
351		static void unquote(char *s)
352		{
353		int l = strlen(s);
354
355		if ((s[l - 1] == '\'' && s[0] == '\'')
356		|| (s[l - 1] == '"' && s[0] == '"')) {
357		memmove(s, s + 1, l - 2);
358		s[l - 2] = '\0';
359		}
360		}
361
362		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
363		{
364		char *s = NULL;
365		int rc = 0;
366		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
367
368		unquote(value);
369		value = shellEscape(value);
370		if (!value)
371		return -1;
372
373		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
374		free(value);
375		if (rc < 0)
376		return -1;
377
378		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
379		rc = system(s);
380		free(s);
381		return rc;
382		}
383
384		/* this is a gigantic hack to avoid clobbering grub2 variables... */
385		static int is_special_grub2_variable(const char *name)
386		{
387		if (!strcmp(name, "\"${next_entry}\""))
388		return 1;
389		if (!strcmp(name, "\"${prev_saved_entry}\""))
390		return 1;
391		return 0;
392		}
393
394		int sizeOfSingleLine(struct singleLine *line)
395		{
396		int count = 0;
397
398		for (int i = 0; i < line->numElements; i++) {
399		int indentSize = 0;
400
401		count = count + strlen(line->elements[i].item);
402
403		indentSize = strlen(line->elements[i].indent);
404		if (indentSize > 0)
405		count = count + indentSize;
406		else
407		/* be extra safe and add room for whitespaces */
408		count = count + 1;
409		}
410
411		/* room for trailing terminator */
412		count = count + 1;
413
414		return count;
415		}
416
417		static int isquote(char q)
418		{
419		if (q == '\'' || q == '\"')
420		return 1;
421		return 0;
422		}
423
424		static int iskernel(enum lineType_e type)
425		{
426		return (type == LT_KERNEL || type == LT_KERNEL_EFI
427		|| type == LT_KERNEL_16);
428		}
429
430		static int isinitrd(enum lineType_e type)
431		{
432		return (type == LT_INITRD || type == LT_INITRD_EFI
433		|| type == LT_INITRD_16);
434		}
435
436		char *grub2ExtractTitle(struct singleLine *line)
437		{
438		char *current;
439		char *current_indent;
440		int current_len;
441		int current_indent_len;
442		int i;
443
444		/* bail out if line does not start with menuentry */
445		if (strcmp(line->elements[0].item, "menuentry"))
446		return NULL;
447
448		i = 1;
449		current = line->elements[i].item;
450		current_len = strlen(current);
451
452		/* if second word is quoted, strip the quotes and return single word */
453		if (isquote(*current) && isquote(current[current_len - 1])) {
454		char *tmp;
455
456		tmp = strdup(current + 1);
457		if (!tmp)
458		return NULL;
459		tmp[strlen(tmp) - 1] = '\0';
460		return tmp;
461		}
462
463		/* if no quotes, return second word verbatim */
464		if (!isquote(*current))
465		return current;
466
467		/* second element start with a quote, so we have to find the element
468		* whose last character is also quote (assuming it's the closing one) */
469		int resultMaxSize;
470		char *result;
471		/* need to ensure that ' does not match " as we search */
472		char quote_char = *current;
473
474		resultMaxSize = sizeOfSingleLine(line);
475		result = malloc(resultMaxSize);
476		snprintf(result, resultMaxSize, "%s", ++current);
477
478		i++;
479		for (; i < line->numElements; ++i) {
480		current = line->elements[i].item;
481		current_len = strlen(current);
482		current_indent = line->elements[i].indent;
483		current_indent_len = strlen(current_indent);
484
485		strncat(result, current_indent, current_indent_len);
486		if (current[current_len - 1] != quote_char) {
487		strncat(result, current, current_len);
488		} else {
489		strncat(result, current, current_len - 1);
490		break;
491		}
492		}
493		return result;
494		}
495
496		struct configFileInfo grub2ConfigType = {
497		.findConfig = grub2FindConfig,
498		.getEnv = grub2GetEnv,
499		.setEnv = grub2SetEnv,
500		.keywords = grub2Keywords,
501		.defaultIsIndex = 1,
502		.defaultSupportSaved = 1,
503		.defaultIsVariable = 1,
504		.entryStart = LT_MENUENTRY,
505		.entryEnd = LT_ENTRY_END,
506		.titlePosition = 1,
507		.needsBootPrefix = 1,
508		.mbHyperFirst = 1,
509		.mbInitRdIsModule = 1,
510		.mbAllowExtraInitRds = 1,
511	};	};
512
513	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
514	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
515	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
516	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
517	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
518	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
519	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
520	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
521	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
522	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
523	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
524	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
525	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
526	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
527	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
528	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
529	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
530	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
531	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
532	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
533	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
534	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
535	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
536	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
539	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
540	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
541	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
542	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
543	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
544	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
545	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
546	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
547	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
548	{ NULL,    0, 0 },	{NULL, 0, 0},
549	};	};
550
551	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
552	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
553	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
554	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
555	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
556	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
557	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
558	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
559	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
560	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
561	{ NULL,    0, 0 },	{NULL, 0, 0},
562	};	};
563
564	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
565	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
566	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
567	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
568	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
569	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
570	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
571	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
572	{ NULL,    0, 0 },	{NULL, 0, 0},
573	};	};
574
575	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
576	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
577	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
578	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
579	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
580	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
581	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
582	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
583	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
584	{ NULL,    0, 0 },	{NULL, 0, 0},
585	};	};
586
587	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
588	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
589	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
590	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
591	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
592	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
593	{ NULL,         0, 0 },	{NULL, 0, 0},
594	};	};
595
596	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
597	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
598	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
599	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
600	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
601	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
602	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
603	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
604	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
605		{"fdtdir", LT_DEVTREE, ' '},
606		{NULL, 0, 0},
607	};	};
608
609	int useextlinuxmenu;	int useextlinuxmenu;
610	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
611	"/boot/efi/EFI/redhat/elilo.conf",    /* defaultConfig */	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
612	eliloKeywords,    /* keywords */	.keywords = eliloKeywords,
613	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
614	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
615	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
616	1,                    /* needsBootPrefix */	.mbConcatArgs = 1,
617	1,    /* argsInQuotes */	.titlePosition = 1,
	0,    /* maxTitleLength */
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	1,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
618	};	};
619
620	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
621	"/etc/lilo.conf",    /* defaultConfig */	.defaultConfig = "/etc/lilo.conf",
622	liloKeywords,    /* keywords */	.keywords = liloKeywords,
623	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
624	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
625	LT_KERNEL,    /* entrySeparator */	.maxTitleLength = 15,
626	0,    /* needsBootPrefix */	.titlePosition = 1,
	1,    /* argsInQuotes */
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
627	};	};
628
629	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
630	"/etc/yaboot.conf",    /* defaultConfig */	.defaultConfig = "/etc/yaboot.conf",
631	yabootKeywords,    /* keywords */	.keywords = yabootKeywords,
632	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
633	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
634	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
635	1,    /* needsBootPrefix */	.maxTitleLength = 15,
636	1,    /* argsInQuotes */	.mbAllowExtraInitRds = 1,
637	15,    /* maxTitleLength */	.titlePosition = 1,
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	1,                                      /* mbAllowExtraInitRds */
638	};	};
639
640	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
641	"/etc/silo.conf",    /* defaultConfig */	.defaultConfig = "/etc/silo.conf",
642	siloKeywords,    /* keywords */	.keywords = siloKeywords,
643	0,    /* defaultIsIndex */	.entryStart = LT_KERNEL,
644	0,    /* defaultSupportSaved */	.needsBootPrefix = 1,
645	LT_KERNEL,    /* entrySeparator */	.argsInQuotes = 1,
646	1,    /* needsBootPrefix */	.maxTitleLength = 15,
647	1,    /* argsInQuotes */	.titlePosition = 1,
	15,    /* maxTitleLength */
	0,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
648	};	};
649
650	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
651	"/etc/zipl.conf",    /* defaultConfig */	.defaultConfig = "/etc/zipl.conf",
652	ziplKeywords,    /* keywords */	.keywords = ziplKeywords,
653	0,    /* defaultIsIndex */	.entryStart = LT_TITLE,
654	0,    /* defaultSupportSaved */	.argsInQuotes = 1,
655	LT_TITLE,    /* entrySeparator */	.titleBracketed = 1,
	0,    /* needsBootPrefix */
	1,    /* argsInQuotes */
	0,    /* maxTitleLength */
	1,                                      /* titleBracketed */
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	0,                                      /* mbAllowExtraInitRds */
656	};	};
657
658	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
659	"/boot/extlinux/extlinux.conf",         /* defaultConfig */	.defaultConfig = "/boot/extlinux/extlinux.conf",
660	extlinuxKeywords,                       /* keywords */	.keywords = extlinuxKeywords,
661	0,                                      /* defaultIsIndex */	.caseInsensitive = 1,
662	0,                                      /* defaultSupportSaved */	.entryStart = LT_TITLE,
663	LT_TITLE,                               /* entrySeparator */	.needsBootPrefix = 1,
664	1,                                      /* needsBootPrefix */	.maxTitleLength = 255,
665	0,                                      /* argsInQuotes */	.mbAllowExtraInitRds = 1,
666	255,                                    /* maxTitleLength */	.defaultIsUnquoted = 1,
667	0,                                      /* titleBracketed */	.titlePosition = 1,
	0,                                      /* mbHyperFirst */
	0,                                      /* mbInitRdIsModule */
	0,                                      /* mbConcatArgs */
	1,                                      /* mbAllowExtraInitRds */
668	};	};
669
670	struct grubConfig {	struct grubConfig {
671	struct singleLine * theLines;	struct singleLine *theLines;
672	struct singleEntry * entries;	struct singleEntry *entries;
673	char * primaryIndent;	char *primaryIndent;
674	char * secondaryIndent;	char *secondaryIndent;
675	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
676	* written out, overriding original */	* written out, overriding original */
677	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
678	int flags;	int flags;
679	struct configFileInfo * cfi;	struct configFileInfo *cfi;
680	};	};
681
682	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	blkid_cache blkid;
	struct singleEntry * findEntryByPath(struct grubConfig * cfg,
	const char * path, const char * prefix,
	int * index);
	static int readFile(int fd, char ** bufPtr);
	static void lineInit(struct singleLine * line);
	struct singleLine * lineDup(struct singleLine * line);
	static void lineFree(struct singleLine * line);
	static int lineWrite(FILE * out, struct singleLine * line,
	struct configFileInfo * cfi);
	static int getNextLine(char ** bufPtr, struct singleLine * line,
	struct configFileInfo * cfi);
	static char * getRootSpecifier(char * str);
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi);
	static void removeElement(struct singleLine * line, int removeHere);
	static struct keywordTypes * getKeywordByType(enum lineType_e type,
	struct configFileInfo * cfi);
	static enum lineType_e getTypeByKeyword(char * keyword,
	struct configFileInfo * cfi);
	static struct singleLine * getLineByType(enum lineType_e type,
	struct singleLine * line);
	static int checkForExtLinux(struct grubConfig * config);
	struct singleLine * addLineTmpl(struct singleEntry * entry,
	struct singleLine * tmplLine,
	struct singleLine * prevLine,
	const char * val,
	struct configFileInfo * cfi);
	struct singleLine *  addLine(struct singleEntry * entry,
	struct configFileInfo * cfi,
	enum lineType_e type, char * defaultIndent,
	const char * val);
683
684	static char * sdupprintf(const char *format, ...)	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
685		struct singleEntry *findEntryByPath(struct grubConfig *cfg,
686		const char *path, const char *prefix,
687		int *index);
688		struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
689		int *index);
690		static int readFile(int fd, char **bufPtr);
691		static void lineInit(struct singleLine *line);
692		struct singleLine *lineDup(struct singleLine *line);
693		static void lineFree(struct singleLine *line);
694		static int lineWrite(FILE * out, struct singleLine *line,
695		struct configFileInfo *cfi);
696		static int getNextLine(char **bufPtr, struct singleLine *line,
697		struct configFileInfo *cfi);
698		static char *getRootSpecifier(char *str);
699		static void requote(struct singleLine *line, struct configFileInfo *cfi);
700		static void insertElement(struct singleLine *line,
701		const char *item, int insertHere,
702		struct configFileInfo *cfi);
703		static void removeElement(struct singleLine *line, int removeHere);
704		static struct keywordTypes *getKeywordByType(enum lineType_e type,
705		struct configFileInfo *cfi);
706		static enum lineType_e getTypeByKeyword(char *keyword,
707		struct configFileInfo *cfi);
708		static struct singleLine *getLineByType(enum lineType_e type,
709		struct singleLine *line);
710		static int checkForExtLinux(struct grubConfig *config);
711		struct singleLine *addLineTmpl(struct singleEntry *entry,
712		struct singleLine *tmplLine,
713		struct singleLine *prevLine,
714		const char *val, struct configFileInfo *cfi);
715		struct singleLine *addLine(struct singleEntry *entry,
716		struct configFileInfo *cfi,
717		enum lineType_e type, char *defaultIndent,
718		const char *val);
719
720		static char *sdupprintf(const char *format, ...)
721	#ifdef __GNUC__	#ifdef __GNUC__
722	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
723	#else	#else
724	;	;
725	#endif	#endif
726
727	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
728	char *buf = NULL;	{
729	char c;	char *buf = NULL;
730	va_list args;	char c;
731	size_t size = 0;	va_list args;
732	va_start(args, format);	size_t size = 0;
733		va_start(args, format);
734	/* XXX requires C99 vsnprintf behavior */
735	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
736	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
737	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
738	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
739	}	abort();
740		}
741
742	va_end(args);	va_end(args);
743	va_start(args, format);	va_start(args, format);
744
745	buf = malloc(size);	buf = malloc(size);
746	if (buf == NULL)	if (buf == NULL)
747	return NULL;	return NULL;
748	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
749	va_end (args);	va_end(args);
750
751	return buf;	return buf;
752	}	}
753
754	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
755	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
756	struct keywordTypes * kw;	{
757	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
758	if (kw->type == type)	int ll = strlen(label);
759	return kw;	int rc;
760		int (*snc)(const char *s1, const char *s2, size_t n) =
761		case_insensitive ? strncasecmp : strncmp;
762		int (*sc)(const char *s1, const char *s2) =
763		case_insensitive ? strcasecmp : strcmp;
764
765		rc = snc(kw->key, label, kwl);
766		if (rc)
767		return rc;
768
769		for (int i = kwl; i < ll; i++) {
770		if (isspace(label[i]))
771		return 0;
772		if (kw->separatorChar && label[i] == kw->separatorChar)
773		return 0;
774		else if (kw->nextChar && label[i] == kw->nextChar)
775		return 0;
776		return sc(kw->key+kwl, label+kwl);
777	}	}
778	return NULL;	return 0;
779	}	}
780
781	static char * getpathbyspec(char *device) {	static enum lineType_e preferredLineType(enum lineType_e type,
782	static blkid_cache blkid;	struct configFileInfo *cfi)
783		{
784	if (!blkid)	if (isEfi && cfi == &grub2ConfigType) {
785	blkid_get_cache(&blkid, NULL);	switch (type) {
786		case LT_KERNEL:
787		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
788		case LT_INITRD:
789		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
790		default:
791		return type;
792		}
793		#if defined(__i386__) || defined(__x86_64__)
794		} else if (cfi == &grub2ConfigType) {
795		switch (type) {
796		case LT_KERNEL:
797		return LT_KERNEL_16;
798		case LT_INITRD:
799		return LT_INITRD_16;
800		default:
801		return type;
802		}
803		#endif
804		}
805		return type;
806		}
807
808	return blkid_get_devname(blkid, device, NULL);	static struct keywordTypes *getKeywordByType(enum lineType_e type,
809		struct configFileInfo *cfi)
810		{
811		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
812		if (kw->type == type)
813		return kw;
814		}
815		return NULL;
816	}	}
817
818	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
819	struct configFileInfo * cfi) {	{
820	struct keywordTypes * kw;	struct keywordTypes *kt = getKeywordByType(type, cfi);
821	for (kw = cfi->keywords; kw->key; kw++) {	if (kt)
822	if (!strcmp(keyword, kw->key))	return kt->key;
823	return kw->type;	return "unknown";
	}
	return LT_UNKNOWN;
824	}	}
825
826	static struct singleLine * getLineByType(enum lineType_e type,	static char *getpathbyspec(char *device)
827	struct singleLine * line) {	{
828	dbgPrintf("getLineByType(%d): ", type);	if (!blkid)
829	for (; line; line = line->next) {	blkid_get_cache(&blkid, NULL);
830	dbgPrintf("%d:%s ", line->type,
831	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;
832	}	}
833
834	static int isBracketedTitle(struct singleLine * line) {	static char *getuuidbydev(char *device)
835	if (line->numElements == 1 && *line->elements[0].item == '[') {	{
836	int len = strlen(line->elements[0].item);	if (!blkid)
837	if (*(line->elements[0].item + len - 1) == ']') {	blkid_get_cache(&blkid, NULL);
838	/* FIXME: this is a hack... */
839	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return blkid_get_tag_value(blkid, "UUID", device);
	return 1;
	}
	}
	}
	return 0;
840	}	}
841
842	static int isEntrySeparator(struct singleLine * line,	static enum lineType_e getTypeByKeyword(char *keyword,
843	struct configFileInfo * cfi) {	struct configFileInfo *cfi)
844	return line->type == cfi->entrySeparator || line->type == LT_OTHER ||	{
845	(cfi->titleBracketed && isBracketedTitle(line));	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
846		if (!kwcmp(kw, keyword, cfi->caseInsensitive))
847		return kw->type;
848		}
849		return LT_UNKNOWN;
850	}	}
851
852	/* extract the title from within brackets (for zipl) */	static struct singleLine *getLineByType(enum lineType_e type,
853	static char * extractTitle(struct singleLine * line) {	struct singleLine *line)
854	/* bracketed title... let's extract it (leaks a byte) */	{
855	char * title;	dbgPrintf("getLineByType(%d): ", type);
856	title = strdup(line->elements[0].item);	for (; line; line = line->next) {
857	title++;	dbgPrintf("%d:%s ", line->type,
858	*(title + strlen(title) - 1) = '\0';	line->numElements ? line->elements[0].
859	return title;	item : "(empty)");
860	}	if (line->type & type)
861		break;
862	static int readFile(int fd, char ** bufPtr) {	}
863	int alloced = 0, size = 0, i = 0;	dbgPrintf(line ? "\n" : " (failed)\n");
864	char * buf = NULL;	return line;
865		}
	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;
	}
866
867	buf = realloc(buf, size + 2);	static int isBracketedTitle(struct singleLine *line)
868	if (size == 0)	{
869	buf[size++] = '\n';	if (line->numElements == 1 && *line->elements[0].item == '[') {
870	else	int len = strlen(line->elements[0].item);
871	if (buf[size - 1] != '\n')	if (*(line->elements[0].item + len - 1) == ']') {
872	buf[size++] = '\n';	/* FIXME: this is a hack... */
873	buf[size] = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
874		return 1;
875		}
876		}
877		}
878		return 0;
879		}
880
881	*bufPtr = buf;	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
882		{
883		return line->type == cfi->entryStart || line->type == LT_OTHER ||
884		(cfi->titleBracketed && isBracketedTitle(line));
885		}
886
887	return 0;	/* extract the title from within brackets (for zipl) */
888		static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
889		{
890		/* bracketed title... let's extract it */
891		char *title = NULL;
892		if (line->type == LT_TITLE) {
893		char *tmp = line->elements[cfg->cfi->titlePosition].item;
894		if (cfg->cfi->titleBracketed) {
895		tmp++;
896		title = strdup(tmp);
897		*(title + strlen(title) - 1) = '\0';
898		} else {
899		title = strdup(tmp);
900		}
901		} else if (line->type == LT_MENUENTRY)
902		title = strdup(line->elements[1].item);
903		else
904		return NULL;
905		return title;
906	}	}
907
908	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
909	line->indent = NULL;	{
910	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
911	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);
	}
912
913	return newLine;	do {
914	}	size += i;
915		if ((size + 1024) > alloced) {
916		alloced += 4096;
917		buf = realloc(buf, alloced + 1);
918		}
919		} while ((i = read(fd, buf + size, 1024)) > 0);
920
921	static void lineFree(struct singleLine * line) {	if (i < 0) {
922	int i;	fprintf(stderr, _("error reading input: %s\n"),
923		strerror(errno));
924		free(buf);
925		return 1;
926		}
927
928	if (line->indent) free(line->indent);	buf = realloc(buf, size + 2);
929		if (size == 0)
930		buf[size++] = '\n';
931		else if (buf[size - 1] != '\n')
932		buf[size++] = '\n';
933		buf[size] = '\0';
934
935	for (i = 0; i < line->numElements; i++) {	*bufPtr = buf;
	free(line->elements[i].item);
	free(line->elements[i].indent);
	}
936
937	if (line->elements) free(line->elements);	return 0;
	lineInit(line);
938	}	}
939
940	static int lineWrite(FILE * out, struct singleLine * line,	static void lineInit(struct singleLine *line)
941	struct configFileInfo * cfi) {	{
942	int i;	line->type = LT_UNIDENTIFIED;
943		line->indent = NULL;
944		line->elements = NULL;
945		line->numElements = 0;
946		line->next = NULL;
947		}
948
949	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *lineDup(struct singleLine *line)
950		{
951		struct singleLine *newLine = malloc(sizeof(*newLine));
952
953	for (i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
954	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->next = NULL;
955	if (fputc('"', out) == EOF) return -1;	newLine->type = line->type;
956		newLine->numElements = line->numElements;
957		newLine->elements = malloc(sizeof(*newLine->elements) *
958		newLine->numElements);
959
960	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	for (int i = 0; i < newLine->numElements; i++) {
961	if (i < line->numElements - 1)	newLine->elements[i].indent = strdup(line->elements[i].indent);
962	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
963	}	}
964
965		return newLine;
966		}
967
968	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
969	if (fputc('"', out) == EOF) return -1;	{
970		if (line->indent)
971		free(line->indent);
972
973	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
974		free(line->elements[i].item);
975		free(line->elements[i].indent);
976		}
977
978	return 0;	if (line->elements)
979		free(line->elements);
980		lineInit(line);
981	}	}
982
983	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
984	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
985	struct configFileInfo * cfi) {	{
986	char * end;	if (fprintf(out, "%s", line->indent) == -1)
987	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
988
989	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
990		/* Need to handle this, because we strip the quotes from
991		* menuentry when read it. */
992		if (line->type == LT_MENUENTRY && i == 1) {
993		if (!isquote(*line->elements[i].item)) {
994		int substring = 0;
995		/* If the line contains nested quotes, we did
996		* not strip the "interna" quotes and we must
997		* use the right quotes again when writing
998		* the updated file. */
999		for (int j = i; j < line->numElements; j++) {
1000		if (strchr(line->elements[i].item, '\'')
1001		!= NULL) {
1002		substring = 1;
1003		fprintf(out, "\"%s\"",
1004		line->elements[i].item);
1005		break;
1006		}
1007		}
1008		if (!substring)
1009		fprintf(out, "\'%s\'",
1010		line->elements[i].item);
1011		} else {
1012		fprintf(out, "%s", line->elements[i].item);
1013		}
1014		fprintf(out, "%s", line->elements[i].indent);
1015
1016	end = strchr(start, '\n');	continue;
1017	*end = '\0';	}
	*bufPtr = end + 1;
1018
1019	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1020		if (fputc('"', out) == EOF)
1021		return -1;
1022
1023		if (fprintf(out, "%s", line->elements[i].item) == -1)
1024		return -1;
1025		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1026		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1027		return -1;
1028		}
1029
1030		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1031		if (fputc('"', out) == EOF)
1032		return -1;
1033
1034	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1035	start = chptr;	return -1;
1036
1037	while (start < end) {	return 0;
1038	/* we know !isspace(*start) */	}
1039
1040	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1041	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1042	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1043	sizeof(*line->elements) * elementsAlloced);	{
1044	}	char *end;
1045		char *start = *bufPtr;
1046		char *chptr;
1047		int elementsAlloced = 0;
1048		struct lineElement *element;
1049		int first = 1;
1050
1051	element = line->elements + line->numElements;	lineFree(line);
1052
1053	chptr = start;	end = strchr(start, '\n');
1054	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1055	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1056
1057	/* 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));
1058
1059	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1060	start = chptr;	start = chptr;
1061
1062	line->numElements++;	while (start < end) {
1063	first = 0;	/* we know !isspace(*start) */
	}
1064
1065	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1066	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1067	else {	line->elements = realloc(line->elements,
1068	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1069	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1070	/* 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);
1071
1072	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1073
1074	for (i = 0; i < line->numElements; i++) {	chptr = start;
1075	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1076	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1077	free(line->elements[i].item);	break;
1078	free(line->elements[i].indent);	chptr++;
1079	}	}
1080		if (line->type == LT_UNIDENTIFIED)
1081		line->type = getTypeByKeyword(start, cfi);
1082		element->item = strndup(start, chptr - start);
1083		start = chptr;
1084
1085		/* lilo actually accepts the pathological case of
1086		* append = " foo " */
1087		if (*start == '=')
1088		chptr = start + 1;
1089		else
1090		chptr = start;
1091
1092		do {
1093		for (; *chptr && isspace(*chptr); chptr++) ;
1094		if (*chptr == '=')
1095		chptr = chptr + 1;
1096		} while (isspace(*chptr));
1097
1098	line->type = LT_WHITESPACE;	element->indent = strndup(start, chptr - start);
1099	line->numElements = 0;	start = chptr;
	}
	} else {
	struct keywordTypes *kw;
1100
1101	kw = getKeywordByType(line->type, cfi);	line->numElements++;
1102		first = 0;
1103	/* space isn't the only separator, we need to split	}
	* elements up more
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
1104
1105	numNewElements = 0;	if (!line->numElements)
1106	p = line->elements[i].item;	line->type = LT_WHITESPACE;
1107	while (*p != '\0') {	else {
1108	if (*p == kw->separatorChar)	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1109	numNewElements++;	if (line->type == LT_UNKNOWN) {
1110	p++;	/* zipl does [title] instead of something reasonable
1111	}	* like all the other boot loaders.  kind of ugly */
1112	if (line->numElements + numNewElements >= elementsAlloced) {	if (cfi->titleBracketed && isBracketedTitle(line)) {
1113	elementsAlloced += numNewElements + 5;	line->type = LT_TITLE;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
1114	}	}
1115
1116	for (j = line->numElements; j > i; j--) {	/* this is awkward, but we need to be able to handle
1117	line->elements[j + numNewElements] = line->elements[j];	* keywords that begin with a # (specifically for
1118		* #boot in grub.conf), but still make comments lines
1119		* with no elements (everything stored in the indent
1120		*/
1121		if (*line->elements[0].item == '#') {
1122		char *fullLine;
1123		int len;
1124
1125		len = strlen(line->indent);
1126		for (int i = 0; i < line->numElements; i++)
1127		len += strlen(line->elements[i].item) +
1128		strlen(line->elements[i].indent);
1129
1130		fullLine = malloc(len + 1);
1131		strcpy(fullLine, line->indent);
1132		free(line->indent);
1133		line->indent = fullLine;
1134
1135		for (int i = 0; i < line->numElements; i++) {
1136		strcat(fullLine,
1137		line->elements[i].item);
1138		strcat(fullLine,
1139		line->elements[i].indent);
1140		free(line->elements[i].item);
1141		free(line->elements[i].indent);
1142		}
1143
1144		line->type = LT_WHITESPACE;
1145		line->numElements = 0;
1146	}	}
1147	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1148		struct keywordTypes *kw;
1149
1150	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1151
1152	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1153	if (*p == '\0') {	* elements up more
1154	break;	*/
1155	}	if (!isspace(kw->separatorChar)) {
1156		char indent[2] = "";
1157		indent[0] = kw->separatorChar;
1158		for (int i = 1; i < line->numElements; i++) {
1159		char *p;
1160		int numNewElements;
1161
1162		numNewElements = 0;
1163		p = line->elements[i].item;
1164		while (*p != '\0') {
1165		if (*p == kw->separatorChar)
1166		numNewElements++;
1167		p++;
1168		}
1169		if (line->numElements +
1170		numNewElements >= elementsAlloced) {
1171		elementsAlloced +=
1172		numNewElements + 5;
1173		line->elements =
1174		realloc(line->elements,
1175		sizeof(*line->
1176		elements) *
1177		elementsAlloced);
1178		}
1179
1180	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1181	line->elements[i].indent = strdup(indent);	j--) {
1182	*p++ = '\0';	line->elements[j +
1183	i++;	numNewElements] =
1184	line->elements[i].item = strdup(p);	line->elements[j];
1185	line->elements[i].indent = strdup("");	}
1186	p = line->elements[i].item;	line->numElements += numNewElements;
1187
1188		p = line->elements[i].item;
1189		while (*p != '\0') {
1190
1191		while (*p != kw->separatorChar
1192		&& *p != '\0')
1193		p++;
1194		if (*p == '\0') {
1195		break;
1196		}
1197
1198		line->elements[i + 1].indent =
1199		line->elements[i].indent;
1200		line->elements[i].indent =
1201		strdup(indent);
1202		*p++ = '\0';
1203		i++;
1204		line->elements[i].item =
1205		strdup(p);
1206		}
1207		}
1208		}
1209		} else if (line->type == LT_SET_VARIABLE) {
1210		/* and if it's a "set blah=" we need to split it
1211		* yet a third way to avoid rhbz# XXX FIXME :/
1212		*/
1213		char *eq;
1214		int l;
1215		int numElements = line->numElements;
1216		struct lineElement *newElements;
1217		eq = strchr(line->elements[1].item, '=');
1218		if (!eq)
1219		return 0;
1220		l = eq - line->elements[1].item;
1221		if (eq[1] != 0)
1222		numElements++;
1223		newElements = calloc(numElements,sizeof (*newElements));
1224		memcpy(&newElements[0], &line->elements[0],
1225		sizeof (newElements[0]));
1226		newElements[1].item =
1227		strndup(line->elements[1].item, l);
1228		newElements[1].indent = "=";
1229		*(eq++) = '\0';
1230		newElements[2].item = strdup(eq);
1231		free(line->elements[1].item);
1232		if (line->elements[1].indent)
1233		newElements[2].indent = line->elements[1].indent;
1234		for (int i = 2; i < line->numElements; i++) {
1235		newElements[i+1].item = line->elements[i].item;
1236		newElements[i+1].indent =
1237		line->elements[i].indent;
1238	}	}
1239	}	free(line->elements);
1240		line->elements = newElements;
1241		line->numElements = numElements;
1242	}	}
1243	}	}
	}
1244
1245	return 0;	return 0;
1246	}	}
1247
1248	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1249	struct configFileInfo * cfi) {	{
1250	int in;	int i;
1251	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1252	int rc;	if (s[i] < '0' || s[i] > '9')
1253	int sawEntry = 0;	return 0;
1254	int movedLine = 0;	return i;
1255	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int i, len;
	char * buf;
	if (!strcmp(inName, "-")) {
	in = 0;
	} else {
	if ((in = open(inName, O_RDONLY)) < 0) {
	fprintf(stderr, _("error opening %s for read: %s\n"),
	inName, strerror(errno));
	return NULL;
	}
	}
1256
1257	rc = readFile(in, &incoming);	static struct grubConfig *readConfig(const char *inName,
1258	close(in);	struct configFileInfo *cfi)
1259	if (rc) return NULL;	{
1260		int in;
1261	head = incoming;	char *incoming = NULL, *head;
1262	cfg = malloc(sizeof(*cfg));	int rc;
1263	cfg->primaryIndent = strdup("");	int sawEntry = 0;
1264	cfg->secondaryIndent = strdup("\t");	int movedLine = 0;
1265	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	struct grubConfig *cfg;
1266	cfg->cfi = cfi;	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1267	cfg->theLines = NULL;	char *end;
1268	cfg->entries = NULL;	struct singleEntry *entry = NULL;
1269	cfg->fallbackImage = 0;	int len;
1270		char *buf;
1271	/* copy everything we have */
1272	while (*head) {	if (inName == NULL) {
1273	line = malloc(sizeof(*line));	printf("Could not find bootloader configuration\n");
1274	lineInit(line);	exit(1);
1275		} else if (!strcmp(inName, "-")) {
1276		in = 0;
1277		} else {
1278		if ((in = open(inName, O_RDONLY)) < 0) {
1279		fprintf(stderr, _("error opening %s for read: %s\n"),
1280		inName, strerror(errno));
1281		return NULL;
1282		}
1283		}
1284
1285	if (getNextLine(&head, line, cfi)) {	rc = readFile(in, &incoming);
1286	free(line);	close(in);
1287	/* XXX memory leak of everything in cfg */	if (rc)
1288	return NULL;	return NULL;
1289	}
1290		head = incoming;
1291	if (!sawEntry && line->numElements) {	cfg = malloc(sizeof(*cfg));
1292	free(cfg->primaryIndent);	cfg->primaryIndent = strdup("");
1293	cfg->primaryIndent = strdup(line->indent);	cfg->secondaryIndent = strdup("\t");
1294	} else if (line->numElements) {	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1295	free(cfg->secondaryIndent);	cfg->cfi = cfi;
1296	cfg->secondaryIndent = strdup(line->indent);	cfg->theLines = NULL;
1297	}	cfg->entries = NULL;
1298		cfg->fallbackImage = 0;
1299	if (isEntrySeparator(line, cfi)) {
1300	sawEntry = 1;	/* copy everything we have */
1301	if (!entry) {	while (*head) {
1302	cfg->entries = malloc(sizeof(*entry));	line = malloc(sizeof(*line));
1303	entry = cfg->entries;	lineInit(line);
1304	} else {
1305	entry->next = malloc(sizeof(*entry));	if (getNextLine(&head, line, cfi)) {
1306	entry = entry->next;	free(line);
1307	}	/* XXX memory leak of everything in cfg */
1308		return NULL;
1309		}
1310
1311	entry->skip = 0;	if (!sawEntry && line->numElements) {
1312	entry->multiboot = 0;	free(cfg->primaryIndent);
1313	entry->lines = NULL;	cfg->primaryIndent = strdup(line->indent);
1314	entry->next = NULL;	} else if (line->numElements) {
1315	}	free(cfg->secondaryIndent);
1316		cfg->secondaryIndent = strdup(line->indent);
1317	if (line->type == LT_DEFAULT && line->numElements == 2) {	}
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1318
1319	for (i = 1; i < line->numElements; i++) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1320	strcat(buf, line->elements[i].item);	sawEntry = 1;
1321	free(line->elements[i].item);	if (!entry) {
1322		cfg->entries = malloc(sizeof(*entry));
1323		entry = cfg->entries;
1324		} else {
1325		entry->next = malloc(sizeof(*entry));
1326		entry = entry->next;
1327		}
1328
1329	if ((i + 1) != line->numElements) {	entry->skip = 0;
1330	strcat(buf, line->elements[i].indent);	entry->multiboot = 0;
1331	free(line->elements[i].indent);	entry->lines = NULL;
1332	}	entry->next = NULL;
1333	}	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (*line->elements[1].item == '"')
	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;
1334
1335	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1336	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1337	entry->lines = line;	line->numElements);
1338	else	dbgPrintf("%s", line->indent);
1339	last->next = line;	for (int i = 0; i < line->numElements; i++)
1340	dbgPrintf("readConfig added %d to %p\n", line->type, entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1341	} else {	line->elements[i].indent);
1342	if (!cfg->theLines)	dbgPrintf("\n");
1343	cfg->theLines = line;	struct keywordTypes *kwType =
1344	else	getKeywordByType(LT_DEFAULT, cfi);
1345	last->next = line;	if (kwType && line->numElements == 3
1346	dbgPrintf("readConfig added %d to cfg\n", line->type);	&& !strcmp(line->elements[1].item, kwType->key)
1347	}	&& !is_special_grub2_variable(
1348		line->elements[2].item)) {
1349		dbgPrintf("Line sets default config\n");
1350		cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1351		defaultLine = line;
1352		}
1353		} else if (iskernel(line->type)) {
1354		/* if by some freak chance this is multiboot and the
1355		* "module" lines came earlier in the template, make
1356		* sure to use LT_HYPER instead of LT_KERNEL now
1357		*/
1358		if (entry && entry->multiboot)
1359		line->type = LT_HYPER;
1360
1361	last = line;	} else if (line->type == LT_MBMODULE) {
1362	}	/* go back and fix the LT_KERNEL line to indicate
1363		* LT_HYPER instead, now that we know this is a
1364		* multiboot entry.  This only applies to grub, but
1365		* that's the only place we should find LT_MBMODULE
1366		* lines anyway.
1367		*/
1368		for (struct singleLine * l = entry->lines; l;
1369		l = l->next) {
1370		if (l->type == LT_HYPER)
1371		break;
1372		else if (iskernel(l->type)) {
1373		l->type = LT_HYPER;
1374		break;
1375		}
1376		}
1377		entry->multiboot = 1;
1378
1379	free(incoming);	} else if (line->type == LT_HYPER) {
1380		entry->multiboot = 1;
1381
1382	if (defaultLine) {	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1383	if (cfi->defaultSupportSaved &&	cfg->fallbackImage =
1384	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	strtol(line->elements[1].item, &end, 10);
1385	cfg->defaultImage = DEFAULT_SAVED;	if (*end)
1386	} else if (cfi->defaultIsIndex) {	cfg->fallbackImage = -1;
1387	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
1388	if (*end) cfg->defaultImage = -1;	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1389	} else if (defaultLine->numElements >= 2) {	|| (line->type == LT_TITLE
1390	i = 0;	&& line->numElements > 1)) {
1391	while ((entry = findEntryByIndex(cfg, i))) {	/* make the title/default a single argument (undoing
1392	for (line = entry->lines; line; line = line->next)	* our parsing) */
1393	if (line->type == LT_TITLE) break;	len = 0;
1394		for (int i = 1; i < line->numElements; i++) {
1395	if (!cfi->titleBracketed) {	len += strlen(line->elements[i].item);
1396	if (line && (line->numElements >= 2) &&	len += strlen(line->elements[i].indent);
1397	!strcmp(defaultLine->elements[1].item,	}
1398	line->elements[1].item)) break;	buf = malloc(len + 1);
1399	} else if (line) {	*buf = '\0';
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1400
1401	if (entry){	for (int i = 1; i < line->numElements; i++) {
1402	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1403	}else{	free(line->elements[i].item);
1404	cfg->defaultImage = -1;
1405	}	if ((i + 1) != line->numElements) {
1406	}	strcat(buf, line->elements[i].indent);
1407	} else {	free(line->elements[i].indent);
1408	cfg->defaultImage = 0;	}
1409	}	}
1410
1411	return cfg;	line->elements[1].indent =
1412	}	line->elements[line->numElements - 1].indent;
1413		line->elements[1].item = buf;
1414		line->numElements = 2;
1415		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1416		/* let --remove-kernel="TITLE=what" work */
1417		len = 0;
1418		char *extras;
1419		char *title;
1420		/* initially unseen value */
1421		char quote_char = '\0';
1422
1423		for (int i = 1; i < line->numElements; i++) {
1424		len += strlen(line->elements[i].item);
1425		len += strlen(line->elements[i].indent);
1426		}
1427		buf = malloc(len + 1);
1428		*buf = '\0';
1429
1430	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1431	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1432	struct singleEntry * entry;	*extras = '\0';
1433	struct singleLine * line;
1434	int i;	/* get title. */
1435		for (int i = 0; i < line->numElements; i++) {
1436		if (!strcmp
1437		(line->elements[i].item, "menuentry"))
1438		continue;
1439		if (isquote(*line->elements[i].item)
1440		&& quote_char == '\0') {
1441		/* ensure we properly pair off quotes */
1442		quote_char = *line->elements[i].item;
1443		title = line->elements[i].item + 1;
1444		} else {
1445		title = line->elements[i].item;
1446		}
1447
1448	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	len = strlen(title);
1449		if (title[len - 1] == quote_char) {
1450		strncat(buf, title, len - 1);
1451		break;
1452		} else {
1453		strcat(buf, title);
1454		strcat(buf, line->elements[i].indent);
1455		}
1456		}
1457
1458	if (cfg->defaultImage == DEFAULT_SAVED)	/* get extras */
1459	fprintf(out, "%sdefault%ssaved\n", indent, separator);	int count = 0;
1460	else if (cfg->defaultImage > -1) {	quote_char = '\0';
1461	if (cfg->cfi->defaultIsIndex) {	for (int i = 0; i < line->numElements; i++) {
1462	fprintf(out, "%sdefault%s%d\n", indent, separator,	if (count >= 2) {
1463	cfg->defaultImage);	strcat(extras, line->elements[i].item);
1464	} else {	strcat(extras,
1465	int image = cfg->defaultImage;	line->elements[i].indent);
1466		}
1467
1468	entry = cfg->entries;	if (!strcmp
1469	while (entry && entry->skip) entry = entry->next;	(line->elements[i].item, "menuentry"))
1470		continue;
1471
1472		/* count ' or ", there should be two in menuentry line. */
1473		if (isquote(*line->elements[i].item)
1474		&& quote_char == '\0') {
1475		/* ensure we properly pair off quotes */
1476		quote_char = *line->elements[i].item;
1477		count++;
1478		}
1479
1480	i = 0;	len = strlen(line->elements[i].item);
	while (entry && i < image) {
	entry = entry->next;
1481
1482	while (entry && entry->skip) entry = entry->next;	if (line->elements[i].item[len - 1] ==
1483	i++;	quote_char)
1484	}	count++;
1485
1486	if (!entry) return;	/* ok, we get the final ' or ", others are extras. */
1487		}
1488		line->elements[1].indent =
1489		line->elements[line->numElements - 2].indent;
1490		line->elements[1].item = buf;
1491		line->elements[2].indent =
1492		line->elements[line->numElements - 2].indent;
1493		line->elements[2].item = extras;
1494		line->numElements = 3;
1495		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1496		/* Strip off any " which may be present; they'll be
1497		* put back on write. This is one of the few (the
1498		* only?) places that grubby canonicalizes the output
1499		*/
1500		if (line->numElements >= 2) {
1501		int last, len;
1502
1503	line = getLineByType(LT_TITLE, entry->lines);	if (isquote(*line->elements[1].item))
1504		memmove(line->elements[1].item,
1505	if (line && line->numElements >= 2)	line->elements[1].item + 1,
1506	fprintf(out, "%sdefault%s%s\n", indent, separator,	strlen(line->elements[1].item +
1507	line->elements[1].item);	1) + 1);
1508	else if (line && (line->numElements == 1) &&
1509	cfg->cfi->titleBracketed) {	last = line->numElements - 1;
1510	fprintf(out, "%sdefault%s%s\n", indent, separator,	len = strlen(line->elements[last].item) - 1;
1511	extractTitle(line));	if (isquote(line->elements[last].item[len]))
1512	}	line->elements[last].item[len] = '\0';
1513	}	}
1514	}	}
	}
1515
1516	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1517	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1518	FILE * out;	defaultLine = line;
1519	struct singleLine * line;	}
	struct singleEntry * entry;
	char * tmpOutName;
	int needs = MAIN_DEFAULT;
	struct stat sb;
	int i;
	if (!strcmp(outName, "-")) {
	out = stdout;
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to 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;
	}
	}
	}
1520
1521	line = cfg->theLines;	/* If we find a generic config option which should live at the
1522	while (line) {	top of the file, move it there. Old versions of grubby were
1523	if (line->type == LT_DEFAULT) {	probably responsible for putting new images in the wrong
1524	writeDefault(out, line->indent, line->elements[0].indent, cfg);	place in front of it anyway. */
1525	needs &= ~MAIN_DEFAULT;	if (sawEntry && line->type == LT_GENERIC) {
1526	} else if (line->type == LT_FALLBACK) {	struct singleLine **l = &cfg->theLines;
1527	if (cfg->fallbackImage > -1)	struct singleLine **last_nonws = &cfg->theLines;
1528	fprintf(out, "%s%s%s%d\n", line->indent,	while (*l) {
1529	line->elements[0].item, line->elements[0].indent,	if ((*l)->type != LT_WHITESPACE)
1530	cfg->fallbackImage);	last_nonws = &((*l)->next);
1531	} else {	l = &((*l)->next);
1532	if (lineWrite(out, line, cfg->cfi) == -1) {	}
1533	fprintf(stderr, _("grubby: error writing %s: %s\n"),	line->next = *last_nonws;
1534	tmpOutName, strerror(errno));	*last_nonws = line;
1535	fclose(out);	movedLine = 1;
1536	unlink(tmpOutName);	continue; /* without setting 'last' */
1537	return 1;	}
	}
	}
1538
1539	line = line->next;	/* If a second line of whitespace happens after a generic
1540	}	* option which was moved, drop it. */
1541		if (movedLine && line->type == LT_WHITESPACE
1542		&& last->type == LT_WHITESPACE) {
1543		lineFree(line);
1544		free(line);
1545		movedLine = 0;
1546		continue;
1547		}
1548		movedLine = 0;
1549
1550	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1551	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1552	needs &= ~MAIN_DEFAULT;	entry->lines = line;
1553	}	else
1554		last->next = line;
1555		dbgPrintf("readConfig added %s to %p\n",
1556		getKeyByType(line->type, cfi), entry);
1557
1558	i = 0;	/* we could have seen this outside of an entry... if
1559	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1560	if (entry->skip) continue;	*/
1561		if (line->type == LT_ENTRY_END && sawEntry)
1562		sawEntry = 0;
1563		} else {
1564		if (!cfg->theLines)
1565		cfg->theLines = line;
1566		else
1567		last->next = line;
1568		dbgPrintf("readConfig added %s to cfg\n",
1569		getKeyByType(line->type, cfi));
1570		}
1571
1572	line = entry->lines;	last = line;
	while (line) {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	line = line->next;
1573	}	}
	}
1574
1575	if (tmpOutName) {	free(incoming);
1576	if (rename(tmpOutName, outName)) {
1577	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1578	tmpOutName, outName, strerror(errno));	if (defaultLine) {
1579	unlink(outName);	if (defaultLine->numElements > 2 &&
1580	return 1;	cfi->defaultSupportSaved &&
1581		!strncmp(defaultLine->elements[2].item,
1582		"\"${saved_entry}\"", 16)) {
1583		cfg->cfi->defaultIsSaved = 1;
1584		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1585		if (cfg->cfi->getEnv) {
1586		char *defTitle =
1587		cfi->getEnv(cfg->cfi, "saved_entry");
1588		if (defTitle) {
1589		int index = 0;
1590		if (isnumber(defTitle)) {
1591		index = atoi(defTitle);
1592		entry =
1593		findEntryByIndex(cfg,
1594		index);
1595		} else {
1596		entry =
1597		findEntryByTitle(cfg,
1598		defTitle,
1599		&index);
1600		}
1601		if (entry)
1602		cfg->defaultImage = index;
1603		}
1604		}
1605		} else if (cfi->defaultIsVariable) {
1606		if (defaultLine->numElements == 2) {
1607		char *value = defaultLine->elements[1].item + 8;
1608		while (*value && (*value == '"' ||
1609		*value == '\'' ||
1610		*value == ' ' ||
1611		*value == '\t'))
1612		value++;
1613		cfg->defaultImage = strtol(value, &end, 10);
1614		while (*end && (*end == '"' || *end == '\'' ||
1615		*end == ' ' || *end == '\t'))
1616		end++;
1617		if (*end)
1618		cfg->defaultImage = -1;
1619		} else if (defaultLine->numElements == 3) {
1620		char *value = defaultLine->elements[2].item;
1621		while (*value && (*value == '"' ||
1622		*value == '\'' ||
1623		*value == ' ' ||
1624		*value == '\t'))
1625		value++;
1626		cfg->defaultImage = strtol(value, &end, 10);
1627		while (*end && (*end == '"' || *end == '\'' ||
1628		*end == ' ' || *end == '\t'))
1629		end++;
1630		if (*end)
1631		cfg->defaultImage = -1;
1632		}
1633		} else if (cfi->defaultSupportSaved &&
1634		!strncmp(defaultLine->elements[1].item, "saved",
1635		5)) {
1636		cfg->defaultImage = DEFAULT_SAVED;
1637		} else if (cfi->defaultIsIndex) {
1638		cfg->defaultImage =
1639		strtol(defaultLine->elements[1].item, &end, 10);
1640		if (*end)
1641		cfg->defaultImage = -1;
1642		} else if (defaultLine->numElements >= 2) {
1643		int i = 0;
1644		while ((entry = findEntryByIndex(cfg, i))) {
1645		for (line = entry->lines; line;
1646		line = line->next)
1647		if (line->type == LT_TITLE)
1648		break;
1649
1650		if (!cfi->titleBracketed) {
1651		if (line && (line->numElements >= 2) &&
1652		!strcmp(defaultLine->elements[1].
1653		item,
1654		line->elements[1].item))
1655		break;
1656		} else if (line) {
1657		if (!strcmp
1658		(defaultLine->elements[1].item,
1659		extractTitle(cfg, line)))
1660		break;
1661		}
1662		i++;
1663		entry = NULL;
1664		}
1665
1666		if (entry) {
1667		cfg->defaultImage = i;
1668		} else {
1669		cfg->defaultImage = -1;
1670		}
1671		}
1672		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1673		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1674		if (defTitle) {
1675		int index = 0;
1676		if (isnumber(defTitle)) {
1677		index = atoi(defTitle);
1678		entry = findEntryByIndex(cfg, index);
1679		} else {
1680		entry = findEntryByTitle(cfg, defTitle, &index);
1681		}
1682		if (entry)
1683		cfg->defaultImage = index;
1684		}
1685		} else {
1686		cfg->defaultImage = 0;
1687	}	}
	}
1688
1689	return 0;	return cfg;
1690	}	}
1691
1692	static int numEntries(struct grubConfig *cfg) {	static void writeDefault(FILE * out, char *indent,
1693	int i = 0;	char *separator, struct grubConfig *cfg)
1694	struct singleEntry * entry;	{
1695		struct singleEntry *entry;
1696	entry = cfg->entries;	struct singleLine *line;
1697	while (entry) {	int i;
1698	if (!entry->skip)
1699	i++;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1700	entry = entry->next;	return;
1701	}
1702	return i;	if (cfg->defaultImage == DEFAULT_SAVED)
1703	}	fprintf(out, "%sdefault%ssaved\n", indent, separator);
1704		else if (cfg->cfi->defaultIsSaved) {
1705		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1706		if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {
1707		char *title;
1708		entry = findEntryByIndex(cfg, cfg->defaultImage);
1709		line = getLineByType(LT_MENUENTRY, entry->lines);
1710		if (!line)
1711		line = getLineByType(LT_TITLE, entry->lines);
1712		if (line) {
1713		title = extractTitle(cfg, line);
1714		if (title)
1715		cfg->cfi->setEnv(cfg->cfi,
1716		"saved_entry", title);
1717		}
1718		}
1719		} else if (cfg->defaultImage > -1) {
1720		if (cfg->cfi->defaultIsIndex) {
1721		if (cfg->cfi->defaultIsVariable) {
1722		fprintf(out, "%sset default=\"%d\"\n", indent,
1723		cfg->defaultImage);
1724		} else {
1725		fprintf(out, "%sdefault%s%d\n", indent,
1726		separator, cfg->defaultImage);
1727		}
1728		} else {
1729		int image = cfg->defaultImage;
1730
1731	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	entry = cfg->entries;
1732	int skipRemoved, int flags) {	while (entry && entry->skip)
1733	struct singleLine * line;	entry = entry->next;
1734	char * fullName;
1735	int i;	i = 0;
1736	struct stat sb, sb2;	while (entry && i < image) {
1737	char * dev;	entry = entry->next;
	char * rootspec;
	if (skipRemoved && entry->skip) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line || line->numElements < 2) return 0;
	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;
	fullName = alloca(strlen(bootPrefix) +
	strlen(line->elements[1].item) + 1);
	rootspec = getRootSpecifier(line->elements[1].item);
	sprintf(fullName, "%s%s", bootPrefix,
	line->elements[1].item + (rootspec ? strlen(rootspec) : 0));
	if (access(fullName, R_OK)) return 0;
	for (i = 2; i < line->numElements; i++)
	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;
	if (i < line->numElements) {
	dev = line->elements[i].item + 5;
	} else {
	/* look for a lilo style LT_ROOT line */
	line = getLineByType(LT_ROOT, entry->lines);
1738
1739	if (line && line->numElements >= 2) {	while (entry && entry->skip)
1740	dev = line->elements[1].item;	entry = entry->next;
1741	} else {	i++;
1742	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	}
	* 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;
	}
	}
	}
1743
1744	dev = getpathbyspec(dev);	if (!entry)
1745	if (!dev)	return;
	return 0;
1746
1747	i = stat(dev, &sb);	line = getLineByType(LT_TITLE, entry->lines);
1748	if (i)
1749	return 0;	if (line && line->numElements >= 2)
1750		fprintf(out, "%sdefault%s%s\n", indent,
1751		separator, line->elements[1].item);
1752		else if (line && (line->numElements == 1)
1753		&& cfg->cfi->titleBracketed) {
1754		char *title = extractTitle(cfg, line);
1755		if (title) {
1756		fprintf(out, "%sdefault%s%s\n", indent,
1757		separator, title);
1758		free(title);
1759		}
1760		}
1761		}
1762		}
1763		}
1764
1765	stat("/", &sb2);	static int writeConfig(struct grubConfig *cfg, char *outName,
1766		const char *prefix)
1767		{
1768		FILE *out;
1769		struct singleLine *line;
1770		struct singleEntry *entry;
1771		char *tmpOutName;
1772		int needs = MAIN_DEFAULT;
1773		struct stat sb;
1774		int i;
1775
1776		if (!strcmp(outName, "-")) {
1777		out = stdout;
1778		tmpOutName = NULL;
1779		} else {
1780		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1781		char *buf;
1782		int len = 256;
1783		int rc;
1784
1785		/* most likely the symlink is relative, so change our
1786		directory to the dir of the symlink */
1787		char *dir = strdupa(outName);
1788		rc = chdir(dirname(dir));
1789		do {
1790		buf = alloca(len + 1);
1791		rc = readlink(basename(outName), buf, len);
1792		if (rc == len)
1793		len += 256;
1794		} while (rc == len);
1795
1796		if (rc < 0) {
1797		fprintf(stderr,
1798		_
1799		("grubby: error readlink link %s: %s\n"),
1800		outName, strerror(errno));
1801		return 1;
1802		}
1803
1804	if (sb.st_rdev != sb2.st_dev)	outName = buf;
1805	return 0;	outName[rc] = '\0';
1806		}
1807
1808	return 1;	tmpOutName = alloca(strlen(outName) + 2);
1809	}	sprintf(tmpOutName, "%s-", outName);
1810		out = fopen(tmpOutName, "w");
1811		if (!out) {
1812		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1813		tmpOutName, strerror(errno));
1814		return 1;
1815		}
1816
1817	/* returns the first match on or after the one pointed to by index (if index	if (!stat(outName, &sb)) {
1818	is not NULL) which is not marked as skip */	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1819	struct singleEntry * findEntryByPath(struct grubConfig * config,	fprintf(stderr,
1820	const char * kernel, const char * prefix,	_
1821	int * index) {	("grubby: error setting perms on %s: %s\n"),
1822	struct singleEntry * entry = NULL;	tmpOutName, strerror(errno));
1823	struct singleLine * line;	fclose(out);
1824	int i;	unlink(tmpOutName);
1825	char * chptr;	return 1;
1826	char * rootspec = NULL;	}
1827	enum lineType_e checkType = LT_KERNEL;	}
1828		}
1829
1830	if (isdigit(*kernel)) {	line = cfg->theLines;
1831	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1832		while (line) {
1833		if (line->type == LT_SET_VARIABLE && defaultKw &&
1834		line->numElements == 3 &&
1835		!strcmp(line->elements[1].item, defaultKw->key) &&
1836		!is_special_grub2_variable(line->elements[2].item)) {
1837		writeDefault(out, line->indent,
1838		line->elements[0].indent, cfg);
1839		needs &= ~MAIN_DEFAULT;
1840		} else if (line->type == LT_DEFAULT) {
1841		writeDefault(out, line->indent,
1842		line->elements[0].indent, cfg);
1843		needs &= ~MAIN_DEFAULT;
1844		} else if (line->type == LT_FALLBACK) {
1845		if (cfg->fallbackImage > -1)
1846		fprintf(out, "%s%s%s%d\n", line->indent,
1847		line->elements[0].item,
1848		line->elements[0].indent,
1849		cfg->fallbackImage);
1850		} else {
1851		if (lineWrite(out, line, cfg->cfi) == -1) {
1852		fprintf(stderr,
1853		_("grubby: error writing %s: %s\n"),
1854		tmpOutName, strerror(errno));
1855		fclose(out);
1856		unlink(tmpOutName);
1857		return 1;
1858		}
1859		}
1860
1861	i = 0;	line = line->next;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
1862	}	}
1863
1864	if (*chptr) {	if (needs & MAIN_DEFAULT) {
1865	/* can't parse it, bail */	writeDefault(out, cfg->primaryIndent, "=", cfg);
1866	return NULL;	needs &= ~MAIN_DEFAULT;
1867	}	}
1868
	indexVars[i + 1] = -1;
1869	i = 0;	i = 0;
1870	if (index) {	while ((entry = findEntryByIndex(cfg, i++))) {
1871	while (i < *index) i++;	if (entry->skip)
1872	if (indexVars[i] == -1) return NULL;	continue;
1873
1874		line = entry->lines;
1875		while (line) {
1876		if (lineWrite(out, line, cfg->cfi) == -1) {
1877		fprintf(stderr,
1878		_("grubby: error writing %s: %s\n"),
1879		tmpOutName, strerror(errno));
1880		fclose(out);
1881		unlink(tmpOutName);
1882		return 1;
1883		}
1884		line = line->next;
1885		}
1886	}	}
1887
1888	entry = findEntryByIndex(config, indexVars[i]);	if (tmpOutName) {
1889	if (!entry) return NULL;	if (rename(tmpOutName, outName)) {
1890		fprintf(stderr,
1891		_("grubby: error moving %s to %s: %s\n"),
1892		tmpOutName, outName, strerror(errno));
1893		unlink(outName);
1894		return 1;
1895		}
1896		}
1897
1898	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	return 0;
1899	if (!line) return NULL;	}
1900
1901	if (index) *index = indexVars[i];	static int numEntries(struct grubConfig *cfg)
1902	return entry;	{
1903	}	int i = 0;
1904		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;
1905
1906	while ((entry = findEntryByIndex(config, i))) {	entry = cfg->entries;
1907	if (!entry->skip) break;	while (entry) {
1908	i++;	if (!entry->skip)
1909		i++;
1910		entry = entry->next;
1911	}	}
1912		return i;
1913		}
1914
1915	if (entry && index)	static char *findDiskForRoot()
1916	*index = i;	{
1917	} else {	int fd;
1918	if (index)	char buf[65536];
1919	i = *index;	char *devname;
1920	else	char *chptr;
1921	i = 0;	int rc;
1922
1923	if (!strncmp(kernel, "TITLE=", 6)) {	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1924	prefix = "";	fprintf(stderr, "grubby: failed to open %s: %s\n",
1925	checkType = LT_TITLE;	_PATH_MOUNTED, strerror(errno));
1926	kernel += 6;	return NULL;
1927		}
1928
1929		rc = read(fd, buf, sizeof(buf) - 1);
1930		if (rc <= 0) {
1931		fprintf(stderr, "grubby: failed to read %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		close(fd);
1934		return NULL;
1935	}	}
1936		close(fd);
1937		buf[rc] = '\0';
1938		chptr = buf;
1939
1940	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *foundanswer = NULL;
	if (entry->skip) continue;
1941
1942	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	while (chptr && chptr != buf + rc) {
1943		devname = chptr;
1944
1945	/* check all the lines matching checkType */	/*
1946	for (line = entry->lines; line; line = line->next) {	* The first column of a mtab entry is the device, but if the
1947	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	* entry is a special device it won't start with /, so move
1948	LT_KERNEL|LT_MBMODULE|LT_HYPER :	* on to the next line.
1949	checkType, line);	*/
1950	if (!line) break;  /* not found in this entry */	if (*devname != '/') {
1951		chptr = strchr(chptr, '\n');
1952		if (chptr)
1953		chptr++;
1954		continue;
1955		}
1956
1957	if (line && line->numElements >= 2) {	/* Seek to the next space */
1958	rootspec = getRootSpecifier(line->elements[1].item);	chptr = strchr(chptr, ' ');
1959	if (!strcmp(line->elements[1].item +	if (!chptr) {
1960	((rootspec != NULL) ? strlen(rootspec) : 0),	fprintf(stderr, "grubby: error parsing %s: %s\n",
1961	kernel + strlen(prefix)))	_PATH_MOUNTED, strerror(errno));
1962	break;	return NULL;
1963		}
1964
1965		/*
1966		* The second column of a mtab entry is the mount point, we
1967		* are looking for '/' obviously.
1968		*/
1969		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1970		/* remember the last / entry in mtab */
1971		foundanswer = devname;
1972	}	}
	}
1973
1974	/* make sure this entry has a kernel identifier; this skips	/* Next line */
1975	* non-Linux boot entries (could find netbsd etc, though, which is	chptr = strchr(chptr, '\n');
1976	* unfortunate)	if (chptr)
1977	*/	chptr++;
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
1978	}	}
1979
1980	if (index) *index = i;	/* Return the last / entry found */
1981	}	if (foundanswer) {
1982		chptr = strchr(foundanswer, ' ');
1983		*chptr = '\0';
1984		return strdup(foundanswer);
1985		}
1986
1987	return entry;	return NULL;
1988	}	}
1989
1990	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	void printEntry(struct singleEntry *entry, FILE * f)
1991	struct singleEntry * entry;	{
1992		int i;
1993		struct singleLine *line;
1994
1995	entry = cfg->entries;	for (line = entry->lines; line; line = line->next) {
1996	while (index && entry) {	log_message(f, "DBG: %s", line->indent);
1997	entry = entry->next;	for (i = 0; i < line->numElements; i++) {
1998	index--;	/* Need to handle this, because we strip the quotes from
1999	}	* menuentry when read it. */
2000		if (line->type == LT_MENUENTRY && i == 1) {
2001		if (!isquote(*line->elements[i].item))
2002		log_message(f, "\'%s\'",
2003		line->elements[i].item);
2004		else
2005		log_message(f, "%s",
2006		line->elements[i].item);
2007		log_message(f, "%s", line->elements[i].indent);
2008
2009	return entry;	continue;
2010	}	}
2011
2012	/* Find a good template to use for the new kernel. An entry is	log_message(f, "%s%s",
2013	* good if the kernel and mkinitrd exist (even if the entry	line->elements[i].item,
2014	* is going to be removed). Try and use the default entry, but	line->elements[i].indent);
2015	* if that doesn't work just take the first. If we can't find one,	}
2016	* 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;
2017	}	}
2018	}	}
2019
2020	index = 0;	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2021	while ((entry = findEntryByIndex(cfg, index))) {	...)
2022	if (suitableImage(entry, prefix, skipRemoved, flags)) {	{
2023	int j;	static int once;
2024	for (j = 0; j < index; j++) {	va_list argp, argq;
2025	entry2 = findEntryByIndex(cfg, j);
2026	if (entry2->skip) index--;	va_start(argp, fmt);
	}
	if (indexPtr) *indexPtr = index;
2027
2028	return entry;	va_copy(argq, argp);
2029		if (!once) {
2030		log_time(NULL);
2031		log_message(NULL, "command line: %s\n", saved_command_line);
2032	}	}
2033		log_message(NULL, "DBG: Image entry %s: ",
2034		okay ? "succeeded" : "failed");
2035		log_vmessage(NULL, fmt, argq);
2036
2037	index++;	printEntry(entry, NULL);
2038	}	va_end(argq);
2039
2040		if (!debug) {
2041		once = 1;
2042		va_end(argp);
2043		return;
2044		}
2045
2046	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	if (okay) {
2047		va_end(argp);
2048		return;
2049		}
2050
2051	return NULL;	if (!once)
2052		log_message(stderr, "DBG: command line: %s\n",
2053		saved_command_line);
2054		once = 1;
2055		fprintf(stderr, "DBG: Image entry failed: ");
2056		vfprintf(stderr, fmt, argp);
2057		printEntry(entry, stderr);
2058		va_end(argp);
2059	}	}
2060
2061	char * findBootPrefix(void) {	#define beginswith(s, c) ((s) && (s)[0] == (c))
	struct stat sb, sb2;
2062
2063	stat("/", &sb);	static int endswith(const char *s, char c)
2064	#ifdef __ia64__	{
2065	stat("/boot/efi/EFI/redhat/", &sb2);	int slen;
	#else
	stat("/boot", &sb2);
	#endif
2066
2067	if (sb.st_dev == sb2.st_dev)	if (!s || !s[0])
2068	return strdup("");	return 0;
2069		slen = strlen(s) - 1;
2070
2071	#ifdef __ia64__	return s[slen] == c;
	return strdup("/boot/efi/EFI/redhat/");
	#else
	return strdup("/boot");
	#endif
2072	}	}
2073
2074	void markRemovedImage(struct grubConfig * cfg, const char * image,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2075	const char * prefix) {	int skipRemoved, int flags)
2076	struct singleEntry * entry;	{
2077		struct singleLine *line;
2078	if (!image) return;	char *fullName;
2079		int i;
2080	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	char *dev;
2081	entry->skip = 1;	char *rootspec;
2082	}	char *rootdev;
2083
2084	void setDefaultImage(struct grubConfig * config, int hasNew,	if (skipRemoved && entry->skip) {
2085	const char * defaultKernelPath, int newIsDefault,	notSuitablePrintf(entry, 0, "marked to skip\n");
2086	const char * prefix, int flags) {	return 0;
2087	struct singleEntry * entry, * entry2, * newDefault;	}
2088	int i, j;
2089		line =
2090	if (newIsDefault) {	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2091	config->defaultImage = 0;	entry->lines);
2092	return;	if (!line) {
2093	} else if (defaultKernelPath) {	notSuitablePrintf(entry, 0, "no line found\n");
2094	i = 0;	return 0;
2095	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {	}
2096	config->defaultImage = i;	if (line->numElements < 2) {
2097	} else {	notSuitablePrintf(entry, 0, "line has only %d elements\n",
2098	config->defaultImage = -1;	line->numElements);
2099	return;	return 0;
2100	}	}
	}
2101
2102	/* defaultImage now points to what we'd like to use, but before any order	if (flags & GRUBBY_BADIMAGE_OKAY) {
2103	changes */	notSuitablePrintf(entry, 1, "\n");
2104	if (config->defaultImage == DEFAULT_SAVED)	return 1;
2105	/* 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;
2106
2107	if (entry && !entry->skip) {	fullName = alloca(strlen(bootPrefix) +
2108	/* we can preserve the default */	strlen(line->elements[1].item) + 1);
2109	if (hasNew)	rootspec = getRootSpecifier(line->elements[1].item);
2110	config->defaultImage++;	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2111		int hasslash = endswith(bootPrefix, '/') ||
2112	/* count the number of entries erased before this one */	beginswith(line->elements[1].item + rootspec_offset, '/');
2113	for (j = 0; j < config->defaultImage; j++) {	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2114	entry2 = findEntryByIndex(config, j);	line->elements[1].item + rootspec_offset);
2115	if (entry2->skip) config->defaultImage--;	if (access(fullName, R_OK)) {
2116	}	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2117	} else if (hasNew) {	return 0;
2118	config->defaultImage = 0;	}
2119	} else {	for (i = 2; i < line->numElements; i++)
2120	/* Either we just erased the default (or the default line was bad	if (!strncasecmp(line->elements[i].item, "root=", 5))
2121	* to begin with) and didn't put a new one in. We'll use the first	break;
2122	* valid image. */	if (i < line->numElements) {
2123	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,	dev = line->elements[i].item + 5;
2124	flags);	} else {
2125	if (!newDefault)	/* look for a lilo style LT_ROOT line */
2126	config->defaultImage = -1;	line = getLineByType(LT_ROOT, entry->lines);
	}
	}
2127
2128	void setFallbackImage(struct grubConfig * config, int hasNew) {	if (line && line->numElements >= 2) {
2129	struct singleEntry * entry, * entry2;	dev = line->elements[1].item;
2130	int j;	} else {
2131		/* didn't succeed in finding a LT_ROOT, let's try
2132	if (config->fallbackImage == -1) return;	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2133		* for the args, so check that too.
2134	entry = findEntryByIndex(config, config->fallbackImage);	*/
2135	if (!entry || entry->skip) {	line =
2136	config->fallbackImage = -1;	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2137	return;	entry->lines);
2138	}
2139		/* failed to find one */
2140		if (!line) {
2141		notSuitablePrintf(entry, 0, "no line found\n");
2142		return 0;
2143		}
2144
2145	if (hasNew)	for (i = 1; i < line->numElements; i++)
2146	config->fallbackImage++;	if (!strncasecmp
2147		(line->elements[i].item, "root=", 5))
2148	/* count the number of entries erased before this one */	break;
2149	for (j = 0; j < config->fallbackImage; j++) {	if (i < line->numElements)
2150	entry2 = findEntryByIndex(config, j);	dev = line->elements[i].item + 5;
2151	if (entry2->skip) config->fallbackImage--;	else {
2152	}	notSuitablePrintf(entry, 0,
2153		"no root= entry found\n");
2154		/* it failed too...  can't find root= */
2155		return 0;
2156		}
2157		}
2158		}
2159
2160		dev = getpathbyspec(dev);
2161		if (!getpathbyspec(dev)) {
2162		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2163		dev);
2164		return 0;
2165		} else
2166		dev = getpathbyspec(dev);
2167
2168		rootdev = findDiskForRoot();
2169		if (!rootdev) {
2170		notSuitablePrintf(entry, 0, "can't find root device\n");
2171		return 0;
2172		}
2173
2174		if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2175		notSuitablePrintf(entry, 0,
2176		"uuid missing: rootdev %s, dev %s\n",
2177		getuuidbydev(rootdev), getuuidbydev(dev));
2178		free(rootdev);
2179		return 0;
2180		}
2181
2182		if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2183		notSuitablePrintf(entry, 0,
2184		"uuid mismatch: rootdev %s, dev %s\n",
2185		getuuidbydev(rootdev), getuuidbydev(dev));
2186		free(rootdev);
2187		return 0;
2188		}
2189
2190		free(rootdev);
2191		notSuitablePrintf(entry, 1, "\n");
2192
2193		return 1;
2194	}	}
2195
2196	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
2197	struct singleLine * line;	is not NULL) which is not marked as skip */
2198	char * root = NULL;	struct singleEntry *findEntryByPath(struct grubConfig *config,
2199	int i;	const char *kernel, const char *prefix,
2200		int *index)
2201	printf("index=%d\n", index);	{
2202		struct singleEntry *entry = NULL;
2203	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	struct singleLine *line;
2204	if (!line) {	int i;
2205	printf("non linux entry\n");	char *chptr;
2206	return;	char *rootspec = NULL;
2207	}	enum lineType_e checkType = LT_KERNEL;
2208
2209		if (isdigit(*kernel)) {
2210		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2211
2212		i = 0;
2213		indexVars[i] = strtol(kernel, &chptr, 10);
2214		while (*chptr == ',') {
2215		i++;
2216		kernel = chptr + 1;
2217		indexVars[i] = strtol(kernel, &chptr, 10);
2218		}
2219
2220	printf("kernel=%s\n", line->elements[1].item);	if (*chptr) {
2221		/* can't parse it, bail */
2222		return NULL;
2223		}
2224
2225	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);
	}
2226
2227	i++;	i = 0;
2228	}	if (index) {
2229	printf("\"\n");	while (i < *index) {
2230	} else {	i++;
2231	line = getLineByType(LT_KERNELARGS, entry->lines);	if (indexVars[i] == -1)
2232	if (line) {	return NULL;
2233	char * s;	}
2234		}
2235
2236	printf("args=\"");	entry = findEntryByIndex(config, indexVars[i]);
2237	i = 1;	if (!entry)
2238	while (i < line->numElements) {	return NULL;
2239	if (!strncmp(line->elements[i].item, "root=", 5)) {
2240	root = line->elements[i].item + 5;	line =
2241		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2242		LT_KERNEL_16, entry->lines);
2243		if (!line)
2244		return NULL;
2245
2246		if (index)
2247		*index = indexVars[i];
2248		return entry;
2249		}
2250
2251		if (!strcmp(kernel, "DEFAULT")) {
2252		if (index && *index > config->defaultImage) {
2253		entry = NULL;
2254	} else {	} else {
2255	s = line->elements[i].item;	entry = findEntryByIndex(config, config->defaultImage);
2256		if (entry && entry->skip)
2257		entry = NULL;
2258		else if (index)
2259		*index = config->defaultImage;
2260		}
2261		} else if (!strcmp(kernel, "ALL")) {
2262		if (index)
2263		i = *index;
2264		else
2265		i = 0;
2266
2267		while ((entry = findEntryByIndex(config, i))) {
2268		if (!entry->skip)
2269		break;
2270		i++;
2271		}
2272
2273	printf("%s%s", s, line->elements[i].indent);	if (entry && index)
2274		*index = i;
2275		} else {
2276		if (index)
2277		i = *index;
2278		else
2279		i = 0;
2280
2281		if (!strncmp(kernel, "TITLE=", 6)) {
2282		prefix = "";
2283		checkType = LT_TITLE | LT_MENUENTRY;
2284		kernel += 6;
2285	}	}
2286
2287	i++;	for (entry = findEntryByIndex(config, i); entry;
2288	}	entry = entry->next, i++) {
2289		if (entry->skip)
2290		continue;
2291
2292		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2293		checkType, kernel, entry);
2294
2295		/* check all the lines matching checkType */
2296		for (line = entry->lines; line; line = line->next) {
2297		enum lineType_e ct = checkType;
2298		if (entry->multiboot && checkType == LT_KERNEL)
2299		ct = LT_KERNEL | LT_KERNEL_EFI |
2300		LT_MBMODULE | LT_HYPER |
2301		LT_KERNEL_16;
2302		else if (checkType & LT_KERNEL)
2303		ct = checkType | LT_KERNEL_EFI |
2304		LT_KERNEL_16;
2305		line = getLineByType(ct, line);
2306		if (!line)
2307		break; /* not found in this entry */
2308
2309		if (line && line->type != LT_MENUENTRY &&
2310		line->numElements >= 2) {
2311		rootspec =
2312		getRootSpecifier(line->elements[1].
2313		item);
2314		if (!strcmp
2315		(line->elements[1].item +
2316		((rootspec !=
2317		NULL) ? strlen(rootspec) : 0),
2318		kernel + strlen(prefix)))
2319		break;
2320		}
2321		if (line->type == LT_MENUENTRY &&
2322		!strcmp(line->elements[1].item, kernel))
2323		break;
2324		}
2325
2326		/* make sure this entry has a kernel identifier; this skips
2327		* non-Linux boot entries (could find netbsd etc, though, which is
2328		* unfortunate)
2329		*/
2330		if (line
2331		&& getLineByType(LT_KERNEL | LT_HYPER |
2332		LT_KERNEL_EFI | LT_KERNEL_16,
2333		entry->lines))
2334		break; /* found 'im! */
2335		}
2336
2337	s = line->elements[i - 1].indent;	if (index)
2338	printf("\"\n");	*index = i;
2339	}	}
	}
2340
2341	if (!root) {	return entry;
2342	line = getLineByType(LT_ROOT, entry->lines);	}
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2343
2344	if (root) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2345	char * s = alloca(strlen(root) + 1);	int *index)
2346		{
2347	strcpy(s, root);	struct singleEntry *entry;
2348	if (s[strlen(s) - 1] == '"')	struct singleLine *line;
2349	s[strlen(s) - 1] = '\0';	int i;
2350	/* make sure the root doesn't have a trailing " */	char *newtitle;
2351	printf("root=%s\n", s);
2352	}	for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2353		if (index && i < *index)
2354		continue;
2355		line = getLineByType(LT_TITLE, entry->lines);
2356		if (!line)
2357		line = getLineByType(LT_MENUENTRY, entry->lines);
2358		if (!line)
2359		continue;
2360		newtitle = grub2ExtractTitle(line);
2361		if (!newtitle)
2362		continue;
2363		if (!strcmp(title, newtitle))
2364		break;
2365		}
2366
2367	line = getLineByType(LT_INITRD, entry->lines);	if (!entry)
2368		return NULL;
2369
2370	if (line && line->numElements >= 2) {	if (index)
2371	printf("initrd=%s", prefix);	*index = i;
2372	for (i = 1; i < line->numElements; i++)	return entry;
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2373	}	}
2374
2375	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2376	FILE * in;	{
2377	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);
2378
2379	return 0;	entry = cfg->entries;
2380	}	while (index && entry) {
2381		entry = entry->next;
2382		index--;
2383		}
2384
2385	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);
	}
2386	}	}
2387
2388	int displayInfo(struct grubConfig * config, char * kernel,	/* Find a good template to use for the new kernel. An entry is
2389	const char * prefix) {	* good if the kernel and mkinitrd exist (even if the entry
2390	int i = 0;	* is going to be removed). Try and use the default entry, but
2391	struct singleEntry * entry;	* if that doesn't work just take the first. If we can't find one,
2392	struct singleLine * line;	* bail. */
2393		struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2394	entry = findEntryByPath(config, kernel, prefix, &i);	int *indexPtr, int skipRemoved, int flags)
2395	if (!entry) {	{
2396	fprintf(stderr, _("grubby: kernel not found\n"));	struct singleEntry *entry, *entry2;
2397	return 1;	int index;
	}
2398
2399	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (cfg->cfi->defaultIsSaved) {
2400	be a better way */	if (cfg->cfi->getEnv) {
2401	if (config->cfi == &grubConfigType) {	char *defTitle =
2402	dumpSysconfigGrub();	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2403	} else {	if (defTitle) {
2404	line = getLineByType(LT_BOOT, config->theLines);	int index = 0;
2405	if (line && line->numElements >= 1) {	if (isnumber(defTitle)) {
2406	printf("boot=%s\n", line->elements[1].item);	index = atoi(defTitle);
2407		entry = findEntryByIndex(cfg, index);
2408		} else {
2409		entry =
2410		findEntryByTitle(cfg, defTitle,
2411		&index);
2412		}
2413		if (entry
2414		&& suitableImage(entry, prefix, skipRemoved,
2415		flags)) {
2416		cfg->defaultImage = index;
2417		if (indexPtr)
2418		*indexPtr = index;
2419		return entry;
2420		}
2421		}
2422		}
2423		} else if (cfg->defaultImage > -1) {
2424		entry = findEntryByIndex(cfg, cfg->defaultImage);
2425		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2426		if (indexPtr)
2427		*indexPtr = cfg->defaultImage;
2428		return entry;
2429		}
2430	}	}
2431
2432	line = getLineByType(LT_LBA, config->theLines);	index = 0;
2433	if (line) printf("lba\n");	while ((entry = findEntryByIndex(cfg, index))) {
2434	}	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2435		int j;
2436	displayEntry(entry, prefix, i);	for (j = 0; j < index; j++) {
2437		entry2 = findEntryByIndex(cfg, j);
2438	i++;	if (entry2->skip)
2439	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	index--;
2440	displayEntry(entry, prefix, i);	}
2441	i++;	if (indexPtr)
2442	}	*indexPtr = index;
2443
2444	return 0;	return entry;
2445	}	}
2446
2447	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);
	}
2448	}	}
	}
2449
2450	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	fprintf(stderr,
2451	newLine->elements[0].item : "");	_("grubby fatal error: unable to find a suitable template\n"));
2452
2453	if (!entry->lines) {	return NULL;
	/* first one on the list */
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
	return newLine;
2454	}	}
2455
2456	/* val may be NULL */	char *findBootPrefix(void)
2457	struct singleLine *  addLine(struct singleEntry * entry,	{
2458	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 = "";
	}
	}
2459
2460	/* The last non-empty line gives us the indention to us and the line	stat("/", &sb);
2461	to insert after. Note that comments are considered empty lines, which	#ifdef __ia64__
2462	may not be ideal? If there are no lines or we are looking at the	stat("/boot/efi/EFI/redhat/", &sb2);
2463	first line, we use defaultIndent (the first line is normally indented	#else
2464	differently from the rest) */	stat("/boot", &sb2);
2465	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;
	}
2466
2467	if (prev == entry->lines)	if (sb.st_dev == sb2.st_dev)
2468	tmpl.indent = defaultIndent ?: "";	return strdup("");
	else
	tmpl.indent = prev->indent;
2469
2470	return addLineTmpl(entry, &tmpl, prev, val, cfi);	#ifdef __ia64__
2471		return strdup("/boot/efi/EFI/redhat/");
2472		#else
2473		return strdup("/boot");
2474		#endif
2475	}	}
2476
2477	void removeLine(struct singleEntry * entry, struct singleLine * line) {	void markRemovedImage(struct grubConfig *cfg, const char *image,
2478	struct singleLine * prev;	const char *prefix)
2479	int i;	{
2480		struct singleEntry *entry;
2481
2482	for (i = 0; i < line->numElements; i++) {	if (!image)
2483	free(line->elements[i].item);	return;
	free(line->elements[i].indent);
	}
	free(line->elements);
	free(line->indent);
2484
2485	if (line == entry->lines) {	/* check and see if we're removing the default image */
2486	entry->lines = line->next;	if (isdigit(*image)) {
2487	} else {	entry = findEntryByPath(cfg, image, prefix, NULL);
2488	prev = entry->lines;	if (entry)
2489	while (prev->next != line) prev = prev->next;	entry->skip = 1;
2490	prev->next = line->next;	return;
2491	}	}
2492
2493	free(line);	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2494		entry->skip = 1;
2495	}	}
2496
2497	static void insertElement(struct singleLine * line,	void setDefaultImage(struct grubConfig *config, int hasNew,
2498	const char * item, int insertHere,	const char *defaultKernelPath, int newIsDefault,
2499	struct configFileInfo * cfi)	const char *prefix, int flags, int index)
2500	{	{
2501	struct keywordTypes * kw;	struct singleEntry *entry, *entry2, *newDefault;
2502	char indent[2] = "";	int i, j;
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
2503
2504	line->elements = realloc(line->elements, (line->numElements + 1) *	if (newIsDefault) {
2505	sizeof(*line->elements));	config->defaultImage = 0;
2506	memmove(&line->elements[insertHere+1],	return;
2507	&line->elements[insertHere],	} else if ((index >= 0) && config->cfi->defaultIsIndex) {
2508	(line->numElements - insertHere) *	if (findEntryByIndex(config, index))
2509	sizeof(*line->elements));	config->defaultImage = index;
2510	line->elements[insertHere].item = strdup(item);	else
2511		config->defaultImage = -1;
2512	kw = getKeywordByType(line->type, cfi);	return;
2513		} else if (defaultKernelPath) {
2514	if (line->numElements == 0) {	i = 0;
2515	indent[0] = '\0';	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
2516	} else if (insertHere == 0) {	config->defaultImage = i;
2517	indent[0] = kw->nextChar;	} else {
2518	} else if (kw->separatorChar != '\0') {	config->defaultImage = -1;
2519	indent[0] = kw->separatorChar;	return;
2520	} else {	}
2521	indent[0] = ' ';	}
	}
2522
2523	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	/* defaultImage now points to what we'd like to use, but before any
2524	/* move the end-of-line forward */	* order changes */
2525	line->elements[insertHere].indent =	if ((config->defaultImage == DEFAULT_SAVED) ||
2526	line->elements[insertHere-1].indent;	(config->defaultImage == DEFAULT_SAVED_GRUB2))
2527	line->elements[insertHere-1].indent = strdup(indent);	/* default is set to saved, we don't want to change it */
2528	} else {	return;
	line->elements[insertHere].indent = strdup(indent);
	}
2529
2530	line->numElements++;	if (config->defaultImage > -1)
2531		entry = findEntryByIndex(config, config->defaultImage);
2532		else
2533		entry = NULL;
2534
2535	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	if (entry && !entry->skip) {
2536	line->elements[0].item,	/* we can preserve the default */
2537	line->elements[insertHere].item,	if (hasNew)
2538	line->elements[insertHere].indent,	config->defaultImage++;
2539	insertHere);
2540		/* count the number of entries erased before this one */
2541		for (j = 0; j < config->defaultImage; j++) {
2542		entry2 = findEntryByIndex(config, j);
2543		if (entry2->skip)
2544		config->defaultImage--;
2545		}
2546		} else if (hasNew) {
2547		config->defaultImage = 0;
2548		} else {
2549		/* Either we just erased the default (or the default line was
2550		* bad to begin with) and didn't put a new one in. We'll use
2551		* the first valid image. */
2552		newDefault =
2553		findTemplate(config, prefix, &config->defaultImage, 1,
2554		flags);
2555		if (!newDefault)
2556		config->defaultImage = -1;
2557		}
2558	}	}
2559
2560	static void removeElement(struct singleLine * line, int removeHere) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2561	int i;	{
2562		struct singleEntry *entry, *entry2;
2563	/* sanity check */	int j;
	if (removeHere >= line->numElements) return;
2564
2565	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	if (config->fallbackImage == -1)
2566	removeHere, line->elements[removeHere].item);	return;
2567
2568	free(line->elements[removeHere].item);	entry = findEntryByIndex(config, config->fallbackImage);
2569		if (!entry || entry->skip) {
2570		config->fallbackImage = -1;
2571		return;
2572		}
2573
2574	if (removeHere > 1) {	if (hasNew)
2575	/* previous argument gets this argument's post-indentation */	config->fallbackImage++;
	free(line->elements[removeHere-1].indent);
	line->elements[removeHere-1].indent =
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2576
2577	/* now collapse the array, but don't bother to realloc smaller */	/* count the number of entries erased before this one */
2578	for (i = removeHere; i < line->numElements - 1; i++)	for (j = 0; j < config->fallbackImage; j++) {
2579	line->elements[i] = line->elements[i + 1];	entry2 = findEntryByIndex(config, j);
2580		if (entry2->skip)
2581	line->numElements--;	config->fallbackImage--;
	}
	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;
2582	}	}
2583	}	}
2584
2585	if (!removeArgs) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2586	oldArgs = malloc(sizeof(*oldArgs));	{
2587	*oldArgs = NULL;	struct singleLine *line;
2588	} else {	char *root = NULL;
2589	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	int i;
2590	fprintf(stderr,	int j;
2591	_("grubby: error separating arguments '%s'\n"), removeArgs);
2592	free(newArgs);	printf("index=%d\n", index);
2593	return 1;
2594		line =
2595		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2596		entry->lines);
2597		if (!line) {
2598		printf("non linux entry\n");
2599		return;
2600	}	}
	}
2601
2602		if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2603		printf("kernel=%s\n", line->elements[1].item);
2604		else
2605		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2606
2607	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	if (line->numElements >= 3) {
2608	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	printf("args=\"");
2609		i = 2;
2610		while (i < line->numElements) {
2611		if (!strncmp(line->elements[i].item, "root=", 5)) {
2612		root = line->elements[i].item + 5;
2613		} else {
2614		printf("%s%s", line->elements[i].item,
2615		line->elements[i].indent);
2616		}
2617
2618	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	i++;
2619	&& !multibootArgs);	}
2620		printf("\"\n");
2621		} else {
2622		line = getLineByType(LT_KERNELARGS, entry->lines);
2623		if (line) {
2624		char *s;
2625
2626		printf("args=\"");
2627		i = 1;
2628		while (i < line->numElements) {
2629		if (!strncmp
2630		(line->elements[i].item, "root=", 5)) {
2631		root = line->elements[i].item + 5;
2632		} else {
2633		s = line->elements[i].item;
2634
2635	for (k = 0, arg = newArgs; *arg; arg++, k++) ;	printf("%s%s", s,
2636	usedArgs = calloc(k, sizeof(*usedArgs));	line->elements[i].indent);
2637		}
2638
2639	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	i++;
2640		}
2641
2642	if (multibootArgs && !entry->multiboot)	s = line->elements[i - 1].indent;
2643	continue;	printf("\"\n");
2644		}
2645		}
2646
2647	/* Determine where to put the args.  If this config supports	if (!root) {
2648	* LT_KERNELARGS, use that.  Otherwise use	line = getLineByType(LT_ROOT, entry->lines);
2649	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	if (line && line->numElements >= 2)
2650	*/	root = line->elements[1].item;
	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;
2651	}	}
2652
2653	/* handle the elilo case which does:	if (root) {
2654	*   append="hypervisor args -- kernel args"	char *s = alloca(strlen(root) + 1);
	*/
	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;
	}
	}
2655
2656	if (i < line->numElements && doreplace) {	strcpy(s, root);
2657	/* direct replacement */	if (s[strlen(s) - 1] == '"')
2658	free(line->elements[i].item);	s[strlen(s) - 1] = '\0';
2659	line->elements[i].item = strdup(*arg);	/* make sure the root doesn't have a trailing " */
2660		printf("root=%s\n", s);
2661		}
2662
2663	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	line =
2664	/* root= replacement */	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2665	rootLine = getLineByType(LT_ROOT, entry->lines);	entry->lines);
2666	if (rootLine) {
2667	free(rootLine->elements[1].item);	if (line && line->numElements >= 2) {
2668	rootLine->elements[1].item = strdup(*arg + 5);	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2669	} else {	printf("initrd=");
2670	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	else
2671	cfg->secondaryIndent, *arg + 5);	printf("initrd=%s", prefix);
	}
	}
2672
2673	else {	for (i = 1; i < line->numElements; i++)
2674	/* insert/append */	printf("%s%s", line->elements[i].item,
2675	insertElement(line, *arg, i, cfg->cfi);	line->elements[i].indent);
2676	usedElements = realloc(usedElements, line->numElements *	printf("\n");
	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);
2677	}	}
	}
2678
2679	free(usedArgs);	line = getLineByType(LT_TITLE, entry->lines);
2680	free(newArgs);	if (line) {
2681	free(oldArgs);	printf("title=%s\n", line->elements[1].item);
2682		} else {
2683		char *title;
2684		line = getLineByType(LT_MENUENTRY, entry->lines);
2685		if (line) {
2686		title = grub2ExtractTitle(line);
2687		if (title)
2688		printf("title=%s\n", title);
2689		}
2690		}
2691
2692	return 0;	for (j = 0, line = entry->lines; line; line = line->next) {
2693		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2694		if (!strncmp
2695		(prefix, line->elements[1].item, strlen(prefix)))
2696		printf("mbmodule%d=", j);
2697		else
2698		printf("mbmodule%d=%s", j, prefix);
2699
2700		for (i = 1; i < line->numElements; i++)
2701		printf("%s%s", line->elements[i].item,
2702		line->elements[i].indent);
2703		printf("\n");
2704		j++;
2705		}
2706		}
2707	}	}
2708
2709	int updateImage(struct grubConfig * cfg, const char * image,	int isSuseSystem(void)
2710	const char * prefix, const char * addArgs,	{
2711	const char * removeArgs,	const char *path;
2712	const char * addMBArgs, const char * removeMBArgs) {	const static char default_path[] = "/etc/SuSE-release";
	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 checkDeviceBootloader(const char * device, const unsigned char * boot) {
	int fd;
	unsigned char bootSect[512];
	int offset;
	fd = open(device, O_RDONLY);
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
2713
2714	if (read(fd, bootSect, 512) != 512) {	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2715	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	path = default_path;
	device, strerror(errno));
	return 1;
	}
	close(fd);
2716
2717	/* first three bytes should match, a jmp short should be in there */	if (!access(path, R_OK))
2718	if (memcmp(boot, bootSect, 3))	return 1;
2719	return 0;	return 0;
2720		}
2721
2722	if (boot[1] == 0xeb) {	int isSuseGrubConf(const char *path)
2723	offset = boot[2] + 2;	{
2724	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	FILE *grubConf;
2725	offset = (boot[3] << 8) + boot[2] + 2;	char *line = NULL;
2726	} else if (boot[0] == 0xeb) {	size_t len = 0, res = 0;
2727	offset = boot[1] + 2;
2728	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {	grubConf = fopen(path, "r");
2729	offset = (boot[2] << 8) + boot[1] + 2;	if (!grubConf) {
2730	} else {	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2731	return 0;	path);
2732	}	return 0;
2733		}
2734
2735		while ((res = getline(&line, &len, grubConf)) != -1) {
2736		if (!strncmp(line, "setup", 5)) {
2737		fclose(grubConf);
2738		free(line);
2739		return 1;
2740		}
2741		}
2742
2743	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2744	return 0;	path);
2745
2746	return 2;	fclose(grubConf);
2747		free(line);
2748		return 0;
2749	}	}
2750
2751	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2752	int fd;	{
2753	char buf[65536];	FILE *grubConf;
2754	char * end;	char *line = NULL;
2755	char * chptr;	size_t res = 0, len = 0;
	char * chptr2;
	int rc;
2756
2757	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (!path)
2758	*raw* devices listed in there */	return 1;
2759		if (!lbaPtr)
2760		return 1;
2761
2762	if (!strncmp(mdDev, "/dev/", 5))	grubConf = fopen(path, "r");
2763	mdDev += 5;	if (!grubConf)
2764		return 1;
2765
2766	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2767	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	if (line[res - 1] == '\n')
2768	strerror(errno));	line[res - 1] = '\0';
2769	return 2;	else if (len > res)
2770	}	line[res] = '\0';
2771		else {
2772		line = realloc(line, res + 1);
2773		line[res] = '\0';
2774		}
2775
2776	rc = read(fd, buf, sizeof(buf) - 1);	if (!strncmp(line, "setup", 5)) {
2777	if (rc < 0 || rc == (sizeof(buf) - 1)) {	if (strstr(line, "--force-lba")) {
2778	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	*lbaPtr = 1;
2779	strerror(errno));	} else {
2780	close(fd);	*lbaPtr = 0;
2781	return 2;	}
2782	}	dbgPrintf("lba: %i\n", *lbaPtr);
2783	close(fd);	break;
2784	buf[rc] = '\0';	}
2785		}
2786
2787	chptr = buf;	free(line);
2788	while (*chptr) {	fclose(grubConf);
2789	end = strchr(chptr, '\n');	return 0;
2790	if (!end) break;	}
	*end = '\0';
2791
2792	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2793	chptr[strlen(mdDev)] == ' ') {	{
2794		FILE *grubConf;
2795		char *line = NULL;
2796		size_t res = 0, len = 0;
2797		char *lastParamPtr = NULL;
2798		char *secLastParamPtr = NULL;
2799		char installDeviceNumber = '\0';
2800		char *bounds = NULL;
2801
2802	/* found the device */	if (!path)
2803	while (*chptr && *chptr != ':') chptr++;	return 1;
2804	chptr++;	if (!devicePtr)
2805	while (*chptr && isspace(*chptr)) chptr++;	return 1;
	/* 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++;
	}
2806
2807	/*  we're good to go */	grubConf = fopen(path, "r");
2808	return 2;	if (!grubConf)
2809	}	return 1;
2810
2811	chptr = end + 1;	while ((res = getline(&line, &len, grubConf)) != -1) {
2812	}	if (strncmp(line, "setup", 5))
2813		continue;
2814
2815		if (line[res - 1] == '\n')
2816		line[res - 1] = '\0';
2817		else if (len > res)
2818		line[res] = '\0';
2819		else {
2820		line = realloc(line, res + 1);
2821		line[res] = '\0';
2822		}
2823
2824	fprintf(stderr,	lastParamPtr = bounds = line + res;
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
	}
2825
2826	int checkForLilo(struct grubConfig * config) {	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2827	int fd;	while (!isspace(*lastParamPtr))
2828	unsigned char boot[512];	lastParamPtr--;
2829	struct singleLine * line;	lastParamPtr++;
2830
2831	for (line = config->theLines; line; line = line->next)	secLastParamPtr = lastParamPtr - 2;
2832	if (line->type == LT_BOOT) break;	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2833
2834	if (!line) {	if (lastParamPtr + 3 > bounds) {
2835	fprintf(stderr,	dbgPrintf("lastParamPtr going over boundary");
2836	_("grubby: no boot line found in lilo configuration\n"));	fclose(grubConf);
2837	return 1;	free(line);
2838	}	return 1;
2839		}
2840		if (!strncmp(lastParamPtr, "(hd", 3))
2841		lastParamPtr += 3;
2842		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2843
2844		/*
2845		* Second last parameter will decide wether last parameter is
2846		* an IMAGE_DEVICE or INSTALL_DEVICE
2847		*/
2848		while (!isspace(*secLastParamPtr))
2849		secLastParamPtr--;
2850		secLastParamPtr++;
2851
2852		if (secLastParamPtr + 3 > bounds) {
2853		dbgPrintf("secLastParamPtr going over boundary");
2854		fclose(grubConf);
2855		free(line);
2856		return 1;
2857		}
2858		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2859		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2860		secLastParamPtr += 3;
2861		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2862		installDeviceNumber = *secLastParamPtr;
2863		} else {
2864		installDeviceNumber = *lastParamPtr;
2865		}
2866
2867	if (line->numElements != 2) return 1;	*devicePtr = malloc(6);
2868		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2869		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2870		fclose(grubConf);
2871		free(line);
2872		return 0;
2873		}
2874
2875	fd = open("/boot/boot.b", O_RDONLY);	free(line);
2876	if (fd < 0) {	fclose(grubConf);
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	"/boot/boot.b", strerror(errno));
2877	return 1;	return 1;
2878	}	}
2879
2880	if (read(fd, boot, 512) != 512) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2881	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2882	"/boot/boot.b", strerror(errno));	FILE *deviceMap;
2883	return 1;	char *line = NULL;
2884	}	size_t res = 0, len = 0;
2885	close(fd);	char *devicePtr;
2886		char *bounds = NULL;
2887		const char *path;
2888		const static char default_path[] = "/boot/grub/device.map";
2889
2890	if (!strncmp("/dev/md", line->elements[1].item, 7))	if (!device)
2891	return checkLiloOnRaid(line->elements[1].item, boot);	return 1;
2892		if (!bootPtr)
2893		return 1;
2894
2895	return checkDeviceBootloader(line->elements[1].item, boot);	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2896	}	path = default_path;
2897
2898	int checkForGrub(struct grubConfig * config) {	dbgPrintf("opening grub device.map file from: %s\n", path);
2899	int fd;	deviceMap = fopen(path, "r");
2900	unsigned char bootSect[512];	if (!deviceMap)
2901	char * boot;	return 1;
2902
2903	if (parseSysconfigGrub(NULL, &boot))	while ((res = getline(&line, &len, deviceMap)) != -1) {
2904	return 0;	if (!strncmp(line, "#", 1))
2905		continue;
2906
2907		if (line[res - 1] == '\n')
2908		line[res - 1] = '\0';
2909		else if (len > res)
2910		line[res] = '\0';
2911		else {
2912		line = realloc(line, res + 1);
2913		line[res] = '\0';
2914		}
2915
2916	/* assume grub is not installed -- not an error condition */	devicePtr = line;
2917	if (!boot)	bounds = line + res;
	return 0;
2918
2919	fd = open("/boot/grub/stage1", O_RDONLY);	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2920	if (fd < 0)	devicePtr++;
2921	/* this doesn't exist if grub hasn't been installed */	dbgPrintf("device: %s\n", devicePtr);
2922	return 0;
2923		if (!strncmp(devicePtr, device, strlen(device))) {
2924		devicePtr += strlen(device);
2925		while (isspace(*devicePtr)
2926		&& ((devicePtr + 1) <= bounds))
2927		devicePtr++;
2928
2929	if (read(fd, bootSect, 512) != 512) {	*bootPtr = strdup(devicePtr);
2930	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	break;
2931	"/boot/grub/stage1", strerror(errno));	}
2932	close(fd);	}
	return 1;
	}
	close(fd);
2933
2934	return checkDeviceBootloader(boot, bootSect);	free(line);
2935		fclose(deviceMap);
2936		return 0;
2937	}	}
2938
2939	int checkForExtLinux(struct grubConfig * config) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
2940	int fd;	{
2941	unsigned char bootSect[512];	char *grubDevice;
	char * boot;
	char executable[] = "/boot/extlinux/extlinux";
	printf("entered: checkForExtLinux()\n");
2942
2943	if (parseSysconfigGrub(NULL, &boot))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
2944	return 0;	dbgPrintf("error looking for grub installation device\n");
2945		else
2946		dbgPrintf("grubby installation device: %s\n", grubDevice);
2947
2948	/* assume grub is not installed -- not an error condition */	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
2949	if (!boot)	dbgPrintf("error looking for grub boot device\n");
2950	return 0;	else
2951		dbgPrintf("grubby boot device: %s\n", *bootPtr);
2952
2953	fd = open(executable, O_RDONLY);	free(grubDevice);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
2954	return 0;	return 0;
2955		}
2956
2957	if (read(fd, bootSect, 512) != 512) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
2958	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
2959	executable, strerror(errno));	/*
2960	return 1;	* This SuSE grub configuration file at this location is not your
2961	}	* average grub configuration file, but instead the grub commands
2962	close(fd);	* used to setup grub on that system.
2963		*/
2964		const char *path;
2965		const static char default_path[] = "/etc/grub.conf";
2966
2967	return checkDeviceBootloader(boot, bootSect);	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
2968	}	path = default_path;
2969
2970	static char * getRootSpecifier(char * str) {	if (!isSuseGrubConf(path))
2971	char * idx, * rootspec = NULL;	return 1;
2972
2973	if (*str == '(') {	if (lbaPtr) {
2974	idx = rootspec = strdup(str);	*lbaPtr = 0;
2975	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (suseGrubConfGetLba(path, lbaPtr))
2976	*(++idx) = '\0';	return 1;
2977	}	}
	return rootspec;
	}
2978
2979	static char * getInitrdVal(struct grubConfig * config,	if (bootPtr) {
2980	const char * prefix, struct singleLine *tmplLine,	*bootPtr = NULL;
2981	const char * newKernelInitrd,	suseGrubConfGetBoot(path, bootPtr);
2982	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;
	}
2983
2984	initrdVal = end = malloc(totalSize);	return 0;
2985		}
2986
2987	end = stpcpy (end, newKernelInitrd + prefixLen);	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
2988		{
2989		FILE *in;
2990		char buf[1024];
2991		char *chptr;
2992		char *start;
2993		char *param;
2994
2995	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	in = fopen("/etc/sysconfig/grub", "r");
2996	for (i = 0; i < extraInitrdCount; i++) {	if (!in)
2997	const char *extraInitrd;	return 1;
	int j;
2998
2999	extraInitrd = extraInitrds[i] + prefixLen;	if (lbaPtr)
3000	/* Don't add entries that are already there */	*lbaPtr = 0;
3001	if (tmplLine != NULL) {	if (bootPtr)
3002	for (j = 2; j < tmplLine->numElements; j++)	*bootPtr = NULL;
3003	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
3004	break;	while (fgets(buf, sizeof(buf), in)) {
3005		start = buf;
3006		while (isspace(*start))
3007		start++;
3008		if (*start == '#')
3009		continue;
3010
3011		chptr = strchr(start, '=');
3012		if (!chptr)
3013		continue;
3014		chptr--;
3015		while (*chptr && isspace(*chptr))
3016		chptr--;
3017		chptr++;
3018		*chptr = '\0';
3019
3020		param = chptr + 1;
3021		while (*param && isspace(*param))
3022		param++;
3023		if (*param == '=') {
3024		param++;
3025		while (*param && isspace(*param))
3026		param++;
3027		}
3028
3029	if (j != tmplLine->numElements)	chptr = param;
3030	continue;	while (*chptr && !isspace(*chptr))
3031		chptr++;
3032		*chptr = '\0';
3033
3034		if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3035		*lbaPtr = 1;
3036		else if (!strcmp(start, "boot") && bootPtr)
3037		*bootPtr = strdup(param);
3038	}	}
3039
3040	*end++ = separatorChar;	fclose(in);
	end = stpcpy(end, extraInitrd);
	}
3041
3042	return initrdVal;	return 0;
3043	}	}
3044
3045	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	void dumpSysconfigGrub(void)
3046	const char * prefix,	{
3047	char * newKernelPath, char * newKernelTitle,	char *boot = NULL;
3048	char * newKernelArgs, char * newKernelInitrd,	int lba;
	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;
3049
3050	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	if (isSuseSystem()) {
3051	while (findEntryByPath(config, buf, NULL, NULL)) {	if (parseSuseGrubConf(&lba, &boot)) {
3052	sprintf(numBuf, "%d", i++);	free(boot);
3053	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);	return;
3054		}
3055		} else {
3056		if (parseSysconfigGrub(&lba, &boot)) {
3057		free(boot);
3058		return;
3059		}
3060	}	}
3061
3062	newKernelTitle = buf + 6;	if (lba)
3063	}	printf("lba\n");
3064		if (boot) {
3065	new = malloc(sizeof(*new));	printf("boot=%s\n", boot);
3066	new->skip = 0;	free(boot);
3067	new->multiboot = 0;	}
3068	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;
	}
	if (template) {
	for (masterLine = template->lines;
	masterLine && (tmplLine = lineDup(masterLine));
	lineFree(tmplLine), masterLine = masterLine->next)
	{
	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
	/* 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
	*/
	switch (config->cfi->entrySeparator) {
	case LT_KERNEL:
	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;
	}
3069
3070	case LT_HYPER:	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3071	newLine = addLine(new, config->cfi, LT_HYPER,	{
3072	config->primaryIndent,	int i = 0;
3073	newMBKernel + strlen(prefix));	struct singleEntry *entry;
3074	needs &= ~NEED_MB;	struct singleLine *line;
3075	break;
3076		entry = findEntryByPath(config, kernel, prefix, &i);
3077		if (!entry) {
3078		fprintf(stderr, _("grubby: kernel not found\n"));
3079		return 1;
3080		}
3081
3082	case LT_TITLE:	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3083	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	be a better way */
3084	char * templabel;	if (config->cfi == &grubConfigType) {
3085	int x = 0, y = 0;	dumpSysconfigGrub();
3086		} else {
3087	templabel = strdup(newKernelTitle);	line = getLineByType(LT_BOOT, config->theLines);
3088	while( templabel[x]){	if (line && line->numElements >= 1) {
3089	if( templabel[x] == ' ' ){	printf("boot=%s\n", line->elements[1].item);
	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);
3090	}	}
	needs &= ~NEED_TITLE;
	break;
3091
3092	default:	line = getLineByType(LT_LBA, config->theLines);
3093	abort();	if (line)
3094		printf("lba\n");
3095	}	}
	}
3096
3097	/* add the remainder of the lines, i.e. those that either	displayEntry(entry, prefix, i);
	* 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;
	}
	if (needs) {
	printf(_("grubby: needs=%d, aborting\n"), needs);
	abort();
	}
3098
3099	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	i++;
3100	newMBKernelArgs, NULL)) return 1;	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3101		displayEntry(entry, prefix, i);
3102		i++;
3103		}
3104
3105	return 0;	return 0;
3106	}	}
3107
3108	static void traceback(int signum)	struct singleLine *addLineTmpl(struct singleEntry *entry,
3109		struct singleLine *tmplLine,
3110		struct singleLine *prevLine,
3111		const char *val, struct configFileInfo *cfi)
3112	{	{
3113	void *array[40];	struct singleLine *newLine = lineDup(tmplLine);
	size_t size;
3114
3115	signal(SIGSEGV, SIG_DFL);	if (isEfi && cfi == &grub2ConfigType) {
3116	memset(array, '\0', sizeof (array));	enum lineType_e old = newLine->type;
3117	size = backtrace(array, 40);	newLine->type = preferredLineType(newLine->type, cfi);
3118		if (old != newLine->type)
3119	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	newLine->elements[0].item =
3120	(unsigned long)size);	getKeyByType(newLine->type, cfi);
	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);
	return 1;
	}
	break;
3121	}	}
	}
3122
3123	if (arg < -1) {	if (val) {
3124	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	/* override the inherited value with our own.
3125	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),	* This is a little weak because it only applies to elements[1]
3126	poptStrerror(arg));	*/
3127	return 1;	if (newLine->numElements > 1)
3128	}	removeElement(newLine, 1);
3129		insertElement(newLine, val, 1, cfi);
3130
3131		/* but try to keep the rootspec from the template... sigh */
3132		if (tmplLine->
3133		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3134		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3135		LT_INITRD_16)) {
3136		char *rootspec =
3137		getRootSpecifier(tmplLine->elements[1].item);
3138		if (rootspec != NULL) {
3139		free(newLine->elements[1].item);
3140		newLine->elements[1].item =
3141		sdupprintf("%s%s", rootspec, val);
3142		}
3143		}
3144		}
3145
3146	if ((chptr = poptGetArg(optCon))) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3147	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	newLine->elements[0].item : "");
	return 1;
	}
3148
3149	if ((configureLilo + configureGrub + configureELilo +	if (!entry->lines) {
3150	configureYaboot + configureSilo + configureZipl +	/* first one on the list */
3151	configureExtLinux ) > 1) {	entry->lines = newLine;
3152	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	} else if (prevLine) {
3153	return 1;	/* add after prevLine */
3154	} else if (bootloaderProbe && grubConfig) {	newLine->next = prevLine->next;
3155	fprintf(stderr,	prevLine->next = newLine;
3156	_("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;
	}
3157
3158	if (!cfi) {	return newLine;
3159	#ifdef __ia64__	}
	cfi = &eliloConfigType;
	#elif __powerpc__
	cfi = &yabootConfigType;
	#elif __sparc__
	cfi = &siloConfigType;
	#elif __s390__
	cfi = &ziplConfigType;
	#elif __s390x__
	cfi = &ziplConfigtype;
	#else
	cfi = &grubConfigType;
	#endif
	}
3160
3161	if (!grubConfig)	/* val may be NULL */
3162	grubConfig = cfi->defaultConfig;	struct singleLine *addLine(struct singleEntry *entry,
3163		struct configFileInfo *cfi,
3164		enum lineType_e type, char *defaultIndent,
3165		const char *val)
3166		{
3167		struct singleLine *line, *prev;
3168		struct keywordTypes *kw;
3169		struct singleLine tmpl;
3170
3171	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	/* NB: This function shouldn't allocate items on the heap, rather on
3172	newKernelPath || removeKernelPath || makeDefault ||	* the stack since it calls addLineTmpl which will make copies.
3173	defaultKernel)) {	*/
3174	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	if (type == LT_TITLE && cfi->titleBracketed) {
3175	"specified option"));	/* we're doing a bracketed title (zipl) */
3176	return 1;	tmpl.type = type;
3177	}	tmpl.numElements = 1;
3178		tmpl.elements = alloca(sizeof(*tmpl.elements));
3179		tmpl.elements[0].item = alloca(strlen(val) + 3);
3180		sprintf(tmpl.elements[0].item, "[%s]", val);
3181		tmpl.elements[0].indent = "";
3182		val = NULL;
3183		} else if (type == LT_MENUENTRY) {
3184		char *lineend = "--class gnu-linux --class gnu --class os {";
3185		if (!val) {
3186		fprintf(stderr,
3187		"Line type LT_MENUENTRY requires a value\n");
3188		abort();
3189		}
3190		kw = getKeywordByType(type, cfi);
3191		if (!kw) {
3192		fprintf(stderr,
3193		"Looking up keyword for unknown type %d\n",
3194		type);
3195		abort();
3196		}
3197		tmpl.indent = "";
3198		tmpl.type = type;
3199		tmpl.numElements = 3;
3200		tmpl.elements =
3201		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3202		tmpl.elements[0].item = kw->key;
3203		tmpl.elements[0].indent = alloca(2);
3204		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3205		tmpl.elements[1].item = (char *)val;
3206		tmpl.elements[1].indent = alloca(2);
3207		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3208		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3209		strcpy(tmpl.elements[2].item, lineend);
3210		tmpl.elements[2].indent = "";
3211		} else {
3212		kw = getKeywordByType(type, cfi);
3213		if (!kw) {
3214		fprintf(stderr,
3215		"Looking up keyword for unknown type %d\n",
3216		type);
3217		abort();
3218		}
3219		tmpl.type = type;
3220		tmpl.numElements = val ? 2 : 1;
3221		tmpl.elements =
3222		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3223		tmpl.elements[0].item = kw->key;
3224		tmpl.elements[0].indent = alloca(2);
3225		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3226		if (val) {
3227		tmpl.elements[1].item = (char *)val;
3228		tmpl.elements[1].indent = "";
3229		}
3230		}
3231
3232	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	/* The last non-empty line gives us the indention to us and the line
3233	removeKernelPath)) {	* to insert after. Note that comments are considered empty lines,
3234	fprintf(stderr, _("grubby: --default-kernel and --info may not "	* which may not be ideal? If there are no lines or we are looking at
3235	"be used when adding or removing kernels\n"));	* the first line, we use defaultIndent (the first line is normally
3236	return 1;	* indented differently from the rest) */
3237	}	for (line = entry->lines, prev = NULL; line; line = line->next) {
3238		if (line->numElements)
3239		prev = line;
3240		/* fall back on the last line if prev isn't otherwise set */
3241		if (!line->next && !prev)
3242		prev = line;
3243		}
3244
3245		struct singleLine *menuEntry;
3246		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3247		if (tmpl.type == LT_ENTRY_END) {
3248		if (menuEntry)
3249		tmpl.indent = menuEntry->indent;
3250		else
3251		tmpl.indent = defaultIndent ? : "";
3252		} else if (tmpl.type != LT_MENUENTRY) {
3253		if (menuEntry)
3254		tmpl.indent = "\t";
3255		else if (prev == entry->lines)
3256		tmpl.indent = defaultIndent ? : "";
3257		else
3258		tmpl.indent = prev->indent;
3259		}
3260
3261	if (newKernelPath && !newKernelTitle) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3262	fprintf(stderr, _("grubby: kernel title must be specified\n"));	}
	return 1;
	} else if (!newKernelPath && (newKernelTitle  || newKernelInitrd ||
	newKernelInitrd || copyDefault     ||
	makeDefault || extraInitrdCount > 0)) {
	fprintf(stderr, _("grubby: kernel path expected\n"));
	return 1;
	}
3263
3264	if (newKernelPath && updateKernelPath) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3265	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	{
3266	"not be used together"));	struct singleLine *prev;
3267	return 1;	int i;
	}
3268
3269	if (makeDefault && defaultKernel) {	for (i = 0; i < line->numElements; i++) {
3270	fprintf(stderr, _("grubby: --make-default and --default-kernel "	free(line->elements[i].item);
3271	"may not be used together\n"));	free(line->elements[i].indent);
3272	return 1;	}
3273	} else if (defaultKernel && removeKernelPath &&	free(line->elements);
3274	!strcmp(defaultKernel, removeKernelPath)) {	free(line->indent);
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
3275
3276	if (!strcmp(grubConfig, "-") && !outputFile) {	if (line == entry->lines) {
3277	fprintf(stderr, _("grubby: output file must be specified if stdin "	entry->lines = line->next;
3278	"is used\n"));	} else {
3279	return 1;	prev = entry->lines;
3280	}	while (prev->next != line)
3281		prev = prev->next;
3282		prev->next = line->next;
3283		}
3284
3285	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	free(line);
3286	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	}
3287	&& !removeMBKernel) {
3288	fprintf(stderr, _("grubby: no action specified\n"));	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3289	return 1;	{
3290	}	struct singleLine newLine = {
3291		.indent = tmplLine->indent,
3292		.type = tmplLine->type,
3293		.next = tmplLine->next,
3294		};
3295		int firstQuotedItem = -1;
3296		int quoteLen = 0;
3297		int j;
3298		int element = 0;
3299		char *c;
3300
3301	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3302		strcpy(c, tmplLine->elements[0].item);
3303		insertElement(&newLine, c, element++, cfi);
3304		free(c);
3305		c = NULL;
3306
3307		for (j = 1; j < tmplLine->numElements; j++) {
3308		if (firstQuotedItem == -1) {
3309		quoteLen += strlen(tmplLine->elements[j].item);
3310
3311		if (isquote(tmplLine->elements[j].item[0])) {
3312		firstQuotedItem = j;
3313		quoteLen +=
3314		strlen(tmplLine->elements[j].indent);
3315		} else {
3316		c = malloc(quoteLen + 1);
3317		strcpy(c, tmplLine->elements[j].item);
3318		insertElement(&newLine, c, element++, cfi);
3319		free(c);
3320		quoteLen = 0;
3321		}
3322		} else {
3323		int itemlen = strlen(tmplLine->elements[j].item);
3324		quoteLen += itemlen;
3325		quoteLen += strlen(tmplLine->elements[j].indent);
3326
3327		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3328		c = malloc(quoteLen + 1);
3329		c[0] = '\0';
3330		for (int i = firstQuotedItem; i < j + 1; i++) {
3331		strcat(c, tmplLine->elements[i].item);
3332		strcat(c, tmplLine->elements[i].indent);
3333		}
3334		insertElement(&newLine, c, element++, cfi);
3335		free(c);
3336
3337	if (cfi->needsBootPrefix) {	firstQuotedItem = -1;
3338	if (!bootPrefix) {	quoteLen = 0;
3339	bootPrefix = findBootPrefix();	}
3340	if (!bootPrefix) return 1;	}
	} else {
	/* this shouldn't end with a / */
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
3341	}	}
3342	} else {	while (tmplLine->numElements)
3343	bootPrefix = "";	removeElement(tmplLine, 0);
3344	}	if (tmplLine->elements)
3345		free(tmplLine->elements);
3346
3347		tmplLine->numElements = newLine.numElements;
3348		tmplLine->elements = newLine.elements;
3349		}
3350
3351	if (!cfi->mbAllowExtraInitRds &&	static void insertElement(struct singleLine *line,
3352	extraInitrdCount > 0) {	const char *item, int insertHere,
3353	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	struct configFileInfo *cfi)
3354	return 1;	{
3355	}	struct keywordTypes *kw;
3356		char indent[2] = "";
3357
3358	if (bootloaderProbe) {	/* sanity check */
3359	int lrc = 0, grc = 0, erc = 0;	if (insertHere > line->numElements) {
3360	struct grubConfig * lconfig, * gconfig;	dbgPrintf
3361		("insertElement() adjusting insertHere from %d to %d\n",
3362	if (!access(grubConfigType.defaultConfig, F_OK)) {	insertHere, line->numElements);
3363	gconfig = readConfig(grubConfigType.defaultConfig, &grubConfigType);	insertHere = line->numElements;
3364	if (!gconfig)	}
3365	grc = 1;
3366	else	line->elements = realloc(line->elements, (line->numElements + 1) *
3367	grc = checkForGrub(gconfig);	sizeof(*line->elements));
3368	}	memmove(&line->elements[insertHere + 1],
3369		&line->elements[insertHere],
3370	if (!access(liloConfigType.defaultConfig, F_OK)) {	(line->numElements - insertHere) * sizeof(*line->elements));
3371	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);	line->elements[insertHere].item = strdup(item);
3372	if (!lconfig)
3373	lrc = 1;	kw = getKeywordByType(line->type, cfi);
3374	else
3375	lrc = checkForLilo(lconfig);	if (line->numElements == 0) {
3376	}	indent[0] = '\0';
3377		} else if (insertHere == 0) {
3378	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {	indent[0] = kw->nextChar;
3379	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);	} else if (kw->separatorChar != '\0') {
3380	if (!lconfig)	indent[0] = kw->separatorChar;
3381	erc = 1;	} else {
3382	else	indent[0] = ' ';
3383	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");
3384
3385	return 0;	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3386	}	/* move the end-of-line forward */
3387		line->elements[insertHere].indent =
3388		line->elements[insertHere - 1].indent;
3389		line->elements[insertHere - 1].indent = strdup(indent);
3390		} else {
3391		line->elements[insertHere].indent = strdup(indent);
3392		}
3393
3394	config = readConfig(grubConfig, cfi);	line->numElements++;
	if (!config) return 1;
3395
3396	if (displayDefault) {	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3397	struct singleLine * line;	line->elements[0].item,
3398	struct singleEntry * entry;	line->elements[insertHere].item,
3399	char * rootspec;	line->elements[insertHere].indent, insertHere);
3400		}
3401	if (config->defaultImage == -1) return 0;
3402	entry = findEntryByIndex(config, config->defaultImage);	static void removeElement(struct singleLine *line, int removeHere)
3403	if (!entry) return 0;	{
3404	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;	int i;
3405
3406	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	/* sanity check */
3407	if (!line) return 0;	if (removeHere >= line->numElements)
3408		return;
3409	rootspec = getRootSpecifier(line->elements[1].item);
3410	printf("%s%s\n", bootPrefix, line->elements[1].item +	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3411	((rootspec != NULL) ? strlen(rootspec) : 0));	removeHere, line->elements[removeHere].item);
3412
3413		free(line->elements[removeHere].item);
3414
3415		if (removeHere > 1) {
3416		/* previous argument gets this argument's post-indentation */
3417		free(line->elements[removeHere - 1].indent);
3418		line->elements[removeHere - 1].indent =
3419		line->elements[removeHere].indent;
3420		} else {
3421		free(line->elements[removeHere].indent);
3422		}
3423
3424		/* now collapse the array, but don't bother to realloc smaller */
3425		for (i = removeHere; i < line->numElements - 1; i++)
3426		line->elements[i] = line->elements[i + 1];
3427
3428		line->numElements--;
3429		}
3430
3431		int argMatch(const char *one, const char *two)
3432		{
3433		char *first, *second;
3434		char *chptr;
3435
3436		first = strcpy(alloca(strlen(one) + 1), one);
3437		second = strcpy(alloca(strlen(two) + 1), two);
3438
3439		chptr = strchr(first, '=');
3440		if (chptr)
3441		*chptr = '\0';
3442
3443		chptr = strchr(second, '=');
3444		if (chptr)
3445		*chptr = '\0';
3446
3447		return strcmp(first, second);
3448		}
3449
3450		int updateActualImage(struct grubConfig *cfg, const char *image,
3451		const char *prefix, const char *addArgs,
3452		const char *removeArgs, int multibootArgs)
3453		{
3454		struct singleEntry *entry;
3455		struct singleLine *line, *rootLine;
3456		int index = 0;
3457		int i, k;
3458		const char **newArgs, **oldArgs;
3459		const char **arg;
3460		int useKernelArgs, useRoot;
3461		int firstElement;
3462		int *usedElements;
3463		int doreplace;
3464
3465		if (!image)
3466		return 0;
3467
3468		if (!addArgs) {
3469		newArgs = malloc(sizeof(*newArgs));
3470		*newArgs = NULL;
3471		} else {
3472		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3473		fprintf(stderr,
3474		_("grubby: error separating arguments '%s'\n"),
3475		addArgs);
3476		return 1;
3477		}
3478		}
3479
3480		if (!removeArgs) {
3481		oldArgs = malloc(sizeof(*oldArgs));
3482		*oldArgs = NULL;
3483		} else {
3484		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3485		fprintf(stderr,
3486		_("grubby: error separating arguments '%s'\n"),
3487		removeArgs);
3488		free(newArgs);
3489		return 1;
3490		}
3491		}
3492
3493		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3494		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3495
3496		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3497		&& !multibootArgs);
3498
3499		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3500
3501		if (multibootArgs && !entry->multiboot)
3502		continue;
3503
3504		/* Determine where to put the args.  If this config supports
3505		* LT_KERNELARGS, use that.  Otherwise use
3506		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3507		*/
3508		if (useKernelArgs) {
3509		line = getLineByType(LT_KERNELARGS, entry->lines);
3510		if (!line) {
3511		/* no LT_KERNELARGS, need to add it */
3512		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3513		cfg->secondaryIndent, NULL);
3514		}
3515		firstElement = 1;
3516
3517		} else if (multibootArgs) {
3518		line = getLineByType(LT_HYPER, entry->lines);
3519		if (!line) {
3520		/* a multiboot entry without LT_HYPER? */
3521		continue;
3522		}
3523		firstElement = 2;
3524
3525		} else {
3526		line =
3527		getLineByType(LT_KERNEL | LT_MBMODULE |
3528		LT_KERNEL_EFI | LT_KERNEL_16,
3529		entry->lines);
3530		if (!line) {
3531		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3532		continue;
3533		}
3534		firstElement = 2;
3535		}
3536
3537		/* handle the elilo case which does:
3538		*   append="hypervisor args -- kernel args"
3539		*/
3540		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3541		/* this is a multiboot entry, make sure there's
3542		* -- on the args line
3543		*/
3544		for (i = firstElement; i < line->numElements; i++) {
3545		if (!strcmp(line->elements[i].item, "--"))
3546		break;
3547		}
3548		if (i == line->numElements) {
3549		/* assume all existing args are kernel args,
3550		* prepend -- to make it official
3551		*/
3552		insertElement(line, "--", firstElement,
3553		cfg->cfi);
3554		i = firstElement;
3555		}
3556		if (!multibootArgs) {
3557		/* kernel args start after the -- */
3558		firstElement = i + 1;
3559		}
3560		} else if (cfg->cfi->mbConcatArgs) {
3561		/* this is a non-multiboot entry, remove hyper args */
3562		for (i = firstElement; i < line->numElements; i++) {
3563		if (!strcmp(line->elements[i].item, "--"))
3564		break;
3565		}
3566		if (i < line->numElements) {
3567		/* remove args up to -- */
3568		while (strcmp
3569		(line->elements[firstElement].item,
3570		"--"))
3571		removeElement(line, firstElement);
3572		/* remove -- */
3573		removeElement(line, firstElement);
3574		}
3575		}
3576
3577		usedElements = calloc(line->numElements, sizeof(*usedElements));
3578
3579		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3580
3581		doreplace = 1;
3582		for (i = firstElement; i < line->numElements; i++) {
3583		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3584		!strcmp(line->elements[i].item, "--")) {
3585		/* reached the end of hyper args, insert here */
3586		doreplace = 0;
3587		break;
3588		}
3589		if (usedElements[i])
3590		continue;
3591		if (!argMatch(line->elements[i].item, *arg)) {
3592		usedElements[i] = 1;
3593		break;
3594		}
3595		}
3596
3597		if (i < line->numElements && doreplace) {
3598		/* direct replacement */
3599		free(line->elements[i].item);
3600		line->elements[i].item = strdup(*arg);
3601
3602		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3603		/* root= replacement */
3604		rootLine = getLineByType(LT_ROOT, entry->lines);
3605		if (rootLine) {
3606		free(rootLine->elements[1].item);
3607		rootLine->elements[1].item =
3608		strdup(*arg + 5);
3609		} else {
3610		rootLine =
3611		addLine(entry, cfg->cfi, LT_ROOT,
3612		cfg->secondaryIndent,
3613		*arg + 5);
3614		}
3615		}
3616
3617		else {
3618		/* insert/append */
3619		insertElement(line, *arg, i, cfg->cfi);
3620		usedElements =
3621		realloc(usedElements,
3622		line->numElements *
3623		sizeof(*usedElements));
3624		memmove(&usedElements[i + 1], &usedElements[i],
3625		line->numElements - i - 1);
3626		usedElements[i] = 1;
3627
3628		/* if we updated a root= here even though
3629		* there is a LT_ROOT available we need to
3630		* remove the LT_ROOT entry (this will happen
3631		* if we switch from a device to a label) */
3632		if (useRoot && !strncmp(*arg, "root=", 5)) {
3633		rootLine =
3634		getLineByType(LT_ROOT,
3635		entry->lines);
3636		if (rootLine)
3637		removeLine(entry, rootLine);
3638		}
3639		}
3640		}
3641
3642		free(usedElements);
3643
3644		for (arg = oldArgs; *arg; arg++) {
3645		for (i = firstElement; i < line->numElements; i++) {
3646		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3647		!strcmp(line->elements[i].item, "--"))
3648		/* reached the end of hyper args, stop here */
3649		break;
3650		if (!argMatch(line->elements[i].item, *arg)) {
3651		removeElement(line, i);
3652		break;
3653		}
3654		}
3655		/* handle removing LT_ROOT line too */
3656		if (useRoot && !strncmp(*arg, "root=", 5)) {
3657		rootLine = getLineByType(LT_ROOT, entry->lines);
3658		if (rootLine)
3659		removeLine(entry, rootLine);
3660		}
3661		}
3662
3663		if (line->numElements == 1) {
3664		/* don't need the line at all (note it has to be a
3665		LT_KERNELARGS for this to happen */
3666		removeLine(entry, line);
3667		}
3668		}
3669
3670		free(newArgs);
3671		free(oldArgs);
3672
3673	return 0;	return 0;
3674	} else if (kernelInfo)	}
	return displayInfo(config, kernelInfo, bootPrefix);
3675
3676	if (copyDefault) {	int updateImage(struct grubConfig *cfg, const char *image,
3677	template = findTemplate(config, bootPrefix, NULL, 0, flags);	const char *prefix, const char *addArgs,
3678	if (!template) return 1;	const char *removeArgs,
3679	}	const char *addMBArgs, const char *removeMBArgs)
3680		{
3681		int rc = 0;
3682
3683	markRemovedImage(config, removeKernelPath, bootPrefix);	if (!image)
3684	markRemovedImage(config, removeMBKernel, bootPrefix);	return rc;
3685	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,
3686	bootPrefix, flags);	/* update the main args first... */
3687	setFallbackImage(config, newKernelPath != NULL);	if (addArgs || removeArgs)
3688	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3689	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	0);
3690	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (rc)
3691	newKernelTitle, newKernelArgs, newKernelInitrd,	return rc;
3692	extraInitrds, extraInitrdCount,
3693	newMBKernel, newMBKernelArgs)) return 1;	/* and now any multiboot args */
3694		if (addMBArgs || removeMBArgs)
3695		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3696	if (numEntries(config) == 0) {	removeMBArgs, 1);
3697	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return rc;
3698	"Not writing out new config.\n"));	}
3699	return 1;
3700	}	int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3701		const char *image, const char *prefix, const char *initrd,
3702		const char *title)
3703		{
3704		struct singleEntry *entry;
3705		struct singleLine *line, *kernelLine, *endLine = NULL;
3706		int index = 0;
3707
3708		if (!image)
3709		return 0;
3710
3711		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3712		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3713		if (!kernelLine)
3714		continue;
3715
3716		/* if title is supplied, the entry's title must match it. */
3717		if (title) {
3718		char *linetitle;
3719
3720		line =
3721		getLineByType(LT_TITLE | LT_MENUENTRY,
3722		entry->lines);
3723		if (!line)
3724		continue;
3725
3726		linetitle = extractTitle(cfg, line);
3727		if (!linetitle)
3728		continue;
3729		if (strcmp(title, linetitle)) {
3730		free(linetitle);
3731		continue;
3732		}
3733		free(linetitle);
3734		}
3735
3736		if (prefix) {
3737		int prefixLen = strlen(prefix);
3738		if (!strncmp(initrd, prefix, prefixLen))
3739		initrd += prefixLen;
3740		}
3741		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3742		if (endLine)
3743		removeLine(entry, endLine);
3744		line =
3745		addLine(entry, cfg->cfi,
3746		preferredLineType(LT_MBMODULE, cfg->cfi),
3747		kernelLine->indent, initrd);
3748		if (!line)
3749		return 1;
3750		if (endLine) {
3751		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3752		if (!line)
3753		return 1;
3754		}
3755
3756		break;
3757		}
3758
3759		return 0;
3760		}
3761
3762		int updateInitrd(struct grubConfig *cfg, const char *image,
3763		const char *prefix, const char *initrd, const char *title)
3764		{
3765		struct singleEntry *entry;
3766		struct singleLine *line, *kernelLine, *endLine = NULL;
3767		int index = 0;
3768
3769		if (!image)
3770		return 0;
3771
3772		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3773		kernelLine =
3774		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3775		entry->lines);
3776		if (!kernelLine)
3777		continue;
3778
3779		/* if title is supplied, the entry's title must match it. */
3780		if (title) {
3781		char *linetitle;
3782
3783		line =
3784		getLineByType(LT_TITLE | LT_MENUENTRY,
3785		entry->lines);
3786		if (!line)
3787		continue;
3788
3789		linetitle = extractTitle(cfg, line);
3790		if (!linetitle)
3791		continue;
3792		if (strcmp(title, linetitle)) {
3793		free(linetitle);
3794		continue;
3795		}
3796		free(linetitle);
3797		}
3798
3799		line =
3800		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3801		entry->lines);
3802		if (line)
3803		removeLine(entry, line);
3804		if (prefix) {
3805		int prefixLen = strlen(prefix);
3806		if (!strncmp(initrd, prefix, prefixLen))
3807		initrd += prefixLen;
3808		}
3809		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3810		if (endLine)
3811		removeLine(entry, endLine);
3812		enum lineType_e lt;
3813		switch (kernelLine->type) {
3814		case LT_KERNEL:
3815		lt = LT_INITRD;
3816		break;
3817		case LT_KERNEL_EFI:
3818		lt = LT_INITRD_EFI;
3819		break;
3820		case LT_KERNEL_16:
3821		lt = LT_INITRD_16;
3822		break;
3823		default:
3824		lt = preferredLineType(LT_INITRD, cfg->cfi);
3825		}
3826		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3827		if (!line)
3828		return 1;
3829		if (endLine) {
3830		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3831		if (!line)
3832		return 1;
3833		}
3834
3835		break;
3836		}
3837
3838		return 0;
3839		}
3840
3841		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3842		{
3843		int fd;
3844		unsigned char bootSect[512];
3845		int offset;
3846
3847		fd = open(device, O_RDONLY);
3848		if (fd < 0) {
3849		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3850		device, strerror(errno));
3851		return 1;
3852		}
3853
3854		if (read(fd, bootSect, 512) != 512) {
3855		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3856		device, strerror(errno));
3857		return 1;
3858		}
3859		close(fd);
3860
3861		/* first three bytes should match, a jmp short should be in there */
3862		if (memcmp(boot, bootSect, 3))
3863		return 0;
3864
3865		if (boot[1] == JMP_SHORT_OPCODE) {
3866		offset = boot[2] + 2;
3867		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3868		offset = (boot[3] << 8) + boot[2] + 2;
3869		} else if (boot[0] == JMP_SHORT_OPCODE) {
3870		offset = boot[1] + 2;
3871		/*
3872		* it looks like grub, when copying stage1 into the mbr,
3873		* patches stage1 right after the JMP location, replacing
3874		* other instructions such as JMPs for NOOPs. So, relax the
3875		* check a little bit by skipping those different bytes.
3876		*/
3877		if ((bootSect[offset + 1] == NOOP_OPCODE)
3878		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3879		offset = offset + 3;
3880		}
3881		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3882		offset = (boot[2] << 8) + boot[1] + 2;
3883		} else {
3884		return 0;
3885		}
3886
3887		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3888		return 0;
3889
3890		return 2;
3891		}
3892
3893		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3894		{
3895		int fd;
3896		char buf[65536];
3897		char *end;
3898		char *chptr;
3899		char *chptr2;
3900		int rc;
3901
3902		/* it's on raid; we need to parse /proc/mdstat and check all of the
3903		*raw* devices listed in there */
3904
3905		if (!strncmp(mdDev, "/dev/", 5))
3906		mdDev += 5;
3907
3908		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3909		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3910		strerror(errno));
3911		return 2;
3912		}
3913
3914		rc = read(fd, buf, sizeof(buf) - 1);
3915		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3916		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3917		strerror(errno));
3918		close(fd);
3919		return 2;
3920		}
3921		close(fd);
3922		buf[rc] = '\0';
3923
3924		chptr = buf;
3925		while (*chptr) {
3926		end = strchr(chptr, '\n');
3927		if (!end)
3928		break;
3929		*end = '\0';
3930
3931		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3932		chptr[strlen(mdDev)] == ' ') {
3933
3934		/* found the device */
3935		while (*chptr && *chptr != ':')
3936		chptr++;
3937		chptr++;
3938		while (*chptr && isspace(*chptr))
3939		chptr++;
3940
3941		/* skip the "active" bit */
3942		while (*chptr && !isspace(*chptr))
3943		chptr++;
3944		while (*chptr && isspace(*chptr))
3945		chptr++;
3946
3947		/* skip the raid level */
3948		while (*chptr && !isspace(*chptr))
3949		chptr++;
3950		while (*chptr && isspace(*chptr))
3951		chptr++;
3952
3953		/* everything else is partition stuff */
3954		while (*chptr) {
3955		chptr2 = chptr;
3956		while (*chptr2 && *chptr2 != '[')
3957		chptr2++;
3958		if (!*chptr2)
3959		break;
3960
3961		/* yank off the numbers at the end */
3962		chptr2--;
3963		while (isdigit(*chptr2) && chptr2 > chptr)
3964		chptr2--;
3965		chptr2++;
3966		*chptr2 = '\0';
3967
3968		/* Better, now we need the /dev/ back. We're
3969		* done with everything before this point, so
3970		* we can just put the /dev/ part there.
3971		* There will always be room. */
3972		memcpy(chptr - 5, "/dev/", 5);
3973		rc = checkDeviceBootloader(chptr - 5, boot);
3974		if (rc != 2) {
3975		return rc;
3976		}
3977
3978		chptr = chptr2 + 1;
3979		/* skip the [11] bit */
3980		while (*chptr && !isspace(*chptr))
3981		chptr++;
3982		/* and move to the next one */
3983		while (*chptr && isspace(*chptr))
3984		chptr++;
3985		}
3986
3987		/*  we're good to go */
3988		return 2;
3989		}
3990
3991		chptr = end + 1;
3992		}
3993
3994		fprintf(stderr,
3995		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
3996		mdDev);
3997		return 0;
3998		}
3999
4000		int checkForLilo(struct grubConfig *config)
4001		{
4002		int fd;
4003		unsigned char boot[512];
4004		struct singleLine *line;
4005
4006		for (line = config->theLines; line; line = line->next)
4007		if (line->type == LT_BOOT)
4008		break;
4009
4010		if (!line) {
4011		fprintf(stderr,
4012		_
4013		("grubby: no boot line found in lilo configuration\n"));
4014		return 1;
4015		}
4016
4017		if (line->numElements != 2)
4018		return 1;
4019
4020		fd = open("/boot/boot.b", O_RDONLY);
4021		if (fd < 0) {
4022		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4023		"/boot/boot.b", strerror(errno));
4024		return 1;
4025		}
4026
4027		if (read(fd, boot, 512) != 512) {
4028		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4029		"/boot/boot.b", strerror(errno));
4030		return 1;
4031		}
4032		close(fd);
4033
4034		if (!strncmp("/dev/md", line->elements[1].item, 7))
4035		return checkLiloOnRaid(line->elements[1].item, boot);
4036
4037		return checkDeviceBootloader(line->elements[1].item, boot);
4038		}
4039
4040		int checkForGrub2(struct grubConfig *config)
4041		{
4042		if (!access("/etc/grub.d/", R_OK))
4043		return 2;
4044
4045		return 1;
4046		}
4047
4048		int checkForGrub(struct grubConfig *config)
4049		{
4050		int fd;
4051		unsigned char bootSect[512];
4052		char *boot;
4053		int onSuse = isSuseSystem();
4054
4055		if (onSuse) {
4056		if (parseSuseGrubConf(NULL, &boot))
4057		return 0;
4058		} else {
4059		if (parseSysconfigGrub(NULL, &boot))
4060		return 0;
4061		}
4062
4063		/* assume grub is not installed -- not an error condition */
4064		if (!boot)
4065		return 0;
4066
4067		fd = open("/boot/grub/stage1", O_RDONLY);
4068		if (fd < 0)
4069		/* this doesn't exist if grub hasn't been installed */
4070		return 0;
4071
4072		if (read(fd, bootSect, 512) != 512) {
4073		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4074		"/boot/grub/stage1", strerror(errno));
4075		close(fd);
4076		return 1;
4077		}
4078		close(fd);
4079
4080		/* The more elaborate checks do not work on SuSE. The checks done
4081		* seem to be reasonble (at least for now), so just return success
4082		*/
4083		if (onSuse)
4084		return 2;
4085
4086		return checkDeviceBootloader(boot, bootSect);
4087		}
4088
4089		int checkForExtLinux(struct grubConfig *config)
4090		{
4091		int fd;
4092		unsigned char bootSect[512];
4093		char *boot;
4094		char executable[] = "/boot/extlinux/extlinux";
4095
4096		printf("entered: checkForExtLinux()\n");
4097
4098		if (parseSysconfigGrub(NULL, &boot))
4099		return 0;
4100
4101		/* assume grub is not installed -- not an error condition */
4102		if (!boot)
4103		return 0;
4104
4105		fd = open(executable, O_RDONLY);
4106		if (fd < 0)
4107		/* this doesn't exist if grub hasn't been installed */
4108		return 0;
4109
4110		if (read(fd, bootSect, 512) != 512) {
4111		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4112		executable, strerror(errno));
4113		return 1;
4114		}
4115		close(fd);
4116
4117		return checkDeviceBootloader(boot, bootSect);
4118		}
4119
4120		int checkForYaboot(struct grubConfig *config)
4121		{
4122		/*
4123		* This is a simplistic check that we consider good enough for own puporses
4124		*
4125		* If we were to properly check if yaboot is *installed* we'd need to:
4126		* 1) get the system boot device (LT_BOOT)
4127		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4128		*    the content on the boot device
4129		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4130		* 4) check again if binary and boot device contents match
4131		*/
4132		if (!access("/etc/yaboot.conf", R_OK))
4133		return 2;
4134
4135		return 1;
4136		}
4137
4138		int checkForElilo(struct grubConfig *config)
4139		{
4140		if (!access("/etc/elilo.conf", R_OK))
4141		return 2;
4142
4143		return 1;
4144		}
4145
4146		static char *getRootSpecifier(char *str)
4147		{
4148		char *idx, *rootspec = NULL;
4149
4150		if (*str == '(') {
4151		idx = rootspec = strdup(str);
4152		while (*idx && (*idx != ')') && (!isspace(*idx)))
4153		idx++;
4154		*(++idx) = '\0';
4155		}
4156		return rootspec;
4157		}
4158
4159		static char *getInitrdVal(struct grubConfig *config,
4160		const char *prefix, struct singleLine *tmplLine,
4161		const char *newKernelInitrd,
4162		const char **extraInitrds, int extraInitrdCount)
4163		{
4164		char *initrdVal, *end;
4165		int i;
4166		size_t totalSize;
4167		size_t prefixLen;
4168		char separatorChar;
4169
4170		prefixLen = strlen(prefix);
4171		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4172
4173		for (i = 0; i < extraInitrdCount; i++) {
4174		totalSize += sizeof(separatorChar);
4175		totalSize += strlen(extraInitrds[i]) - prefixLen;
4176		}
4177
4178		initrdVal = end = malloc(totalSize);
4179
4180		end = stpcpy(end, newKernelInitrd + prefixLen);
4181
4182		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4183		for (i = 0; i < extraInitrdCount; i++) {
4184		const char *extraInitrd;
4185		int j;
4186
4187		extraInitrd = extraInitrds[i] + prefixLen;
4188		/* Don't add entries that are already there */
4189		if (tmplLine != NULL) {
4190		for (j = 2; j < tmplLine->numElements; j++)
4191		if (strcmp
4192		(extraInitrd,
4193		tmplLine->elements[j].item) == 0)
4194		break;
4195
4196		if (j != tmplLine->numElements)
4197		continue;
4198		}
4199
4200		*end++ = separatorChar;
4201		end = stpcpy(end, extraInitrd);
4202		}
4203
4204		return initrdVal;
4205		}
4206
4207		int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4208		const char *prefix,
4209		const char *newKernelPath, const char *newKernelTitle,
4210		const char *newKernelArgs, const char *newKernelInitrd,
4211		const char **extraInitrds, int extraInitrdCount,
4212		const char *newMBKernel, const char *newMBKernelArgs,
4213		const char *newDevTreePath, int newIndex)
4214		{
4215		struct singleEntry *new, *entry, *prev = NULL;
4216		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4217		int needs;
4218		char *indexs;
4219		char *chptr;
4220		int rc;
4221
4222		if (!newKernelPath)
4223		return 0;
4224
4225		rc = asprintf(&indexs, "%d", newIndex);
4226		if (rc < 0)
4227		return 1;
4228
4229		/* if the newKernelTitle is too long silently munge it into something
4230		* we can live with. truncating is first check, then we'll just mess with
4231		* it until it looks better */
4232		if (config->cfi->maxTitleLength &&
4233		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4234		char *buf = alloca(config->cfi->maxTitleLength + 7);
4235		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4236		int i = 1;
4237
4238		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4239		newKernelTitle);
4240		while (findEntryByPath(config, buf, NULL, NULL)) {
4241		sprintf(numBuf, "%d", i++);
4242		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4243		}
4244
4245		newKernelTitle = buf + 6;
4246		}
4247
4248		new = malloc(sizeof(*new));
4249		new->skip = 0;
4250		new->multiboot = 0;
4251		new->lines = NULL;
4252		entry = config->entries;
4253		for (unsigned int i = 0; i < newIndex; i++) {
4254		if (!entry)
4255		break;
4256		prev = entry;
4257		entry = entry->next;
4258		}
4259		new->next = entry;
4260
4261		if (prev)
4262		prev->next = new;
4263		else
4264		config->entries = new;
4265
4266		/* copy/update from the template */
4267		needs = NEED_KERNEL | NEED_TITLE;
4268		if (newKernelInitrd)
4269		needs |= NEED_INITRD;
4270		if (newMBKernel) {
4271		needs |= NEED_MB;
4272		new->multiboot = 1;
4273		}
4274		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4275		needs |= NEED_DEVTREE;
4276
4277		if (template) {
4278		for (masterLine = template->lines;
4279		masterLine && (tmplLine = lineDup(masterLine));
4280		lineFree(tmplLine), masterLine = masterLine->next) {
4281		dbgPrintf("addNewKernel processing %d\n",
4282		tmplLine->type);
4283
4284		/* skip comments */
4285		chptr = tmplLine->indent;
4286		while (*chptr && isspace(*chptr))
4287		chptr++;
4288		if (*chptr == '#')
4289		continue;
4290
4291		if (iskernel(tmplLine->type)
4292		&& tmplLine->numElements >= 2) {
4293		if (!template->multiboot && (needs & NEED_MB)) {
4294		/* it's not a multiboot template and
4295		* this is the kernel line.  Try to
4296		* be intelligent about inserting the
4297		* hypervisor at the same time.
4298		*/
4299		if (config->cfi->mbHyperFirst) {
4300		/* insert the hypervisor first */
4301		newLine =
4302		addLine(new, config->cfi,
4303		LT_HYPER,
4304		tmplLine->indent,
4305		newMBKernel +
4306		strlen(prefix));
4307		/* set up for adding the
4308		* kernel line */
4309		free(tmplLine->indent);
4310		tmplLine->indent =
4311		strdup(config->
4312		secondaryIndent);
4313		needs &= ~NEED_MB;
4314		}
4315		if (needs & NEED_KERNEL) {
4316		/* use addLineTmpl to
4317		* preserve line elements,
4318		* otherwise we could just
4319		* call addLine.
4320		* Unfortunately this means
4321		* making some changes to the
4322		* template such as the
4323		* indent change above and
4324		* the type change below.
4325		*/
4326		struct keywordTypes *mbm_kw =
4327		getKeywordByType
4328		(LT_MBMODULE, config->cfi);
4329		if (mbm_kw) {
4330		tmplLine->type =
4331		LT_MBMODULE;
4332		free(tmplLine->
4333		elements[0].item);
4334		tmplLine->elements[0].
4335		item =
4336		strdup(mbm_kw->key);
4337		}
4338		newLine =
4339		addLineTmpl(new, tmplLine,
4340		newLine,
4341		newKernelPath +
4342		strlen(prefix),
4343		config->cfi);
4344		needs &= ~NEED_KERNEL;
4345		}
4346		if (needs & NEED_MB) { /* !mbHyperFirst */
4347		newLine =
4348		addLine(new, config->cfi,
4349		LT_HYPER,
4350		config->
4351		secondaryIndent,
4352		newMBKernel +
4353		strlen(prefix));
4354		needs &= ~NEED_MB;
4355		}
4356		} else if (needs & NEED_KERNEL) {
4357		newLine =
4358		addLineTmpl(new, tmplLine, newLine,
4359		newKernelPath +
4360		strlen(prefix),
4361		config->cfi);
4362		needs &= ~NEED_KERNEL;
4363		}
4364
4365		} else if (tmplLine->type == LT_HYPER &&
4366		tmplLine->numElements >= 2) {
4367		if (needs & NEED_MB) {
4368		newLine =
4369		addLineTmpl(new, tmplLine, newLine,
4370		newMBKernel +
4371		strlen(prefix),
4372		config->cfi);
4373		needs &= ~NEED_MB;
4374		}
4375
4376		} else if (tmplLine->type == LT_MBMODULE &&
4377		tmplLine->numElements >= 2) {
4378		if (new->multiboot) {
4379		if (needs & NEED_KERNEL) {
4380		newLine =
4381		addLineTmpl(new, tmplLine,
4382		newLine,
4383		newKernelPath +
4384		strlen(prefix),
4385		config->cfi);
4386		needs &= ~NEED_KERNEL;
4387		} else if (config->cfi->mbInitRdIsModule
4388		&& (needs & NEED_INITRD)) {
4389		char *initrdVal;
4390		initrdVal =
4391		getInitrdVal(config, prefix,
4392		tmplLine,
4393		newKernelInitrd,
4394		extraInitrds,
4395		extraInitrdCount);
4396		newLine =
4397		addLineTmpl(new, tmplLine,
4398		newLine,
4399		initrdVal,
4400		config->cfi);
4401		free(initrdVal);
4402		needs &= ~NEED_INITRD;
4403		}
4404		} else if (needs & NEED_KERNEL) {
4405		/* template is multi but new is not,
4406		* insert the kernel in the first
4407		* module slot
4408		*/
4409		tmplLine->type =
4410		preferredLineType(LT_KERNEL,
4411		config->cfi);
4412		free(tmplLine->elements[0].item);
4413		tmplLine->elements[0].item =
4414		strdup(getKeywordByType
4415		(tmplLine->type,
4416		config->cfi)->key);
4417		newLine =
4418		addLineTmpl(new, tmplLine, newLine,
4419		newKernelPath +
4420		strlen(prefix),
4421		config->cfi);
4422		needs &= ~NEED_KERNEL;
4423		} else if (needs & NEED_INITRD) {
4424		char *initrdVal;
4425		/* template is multi but new is not,
4426		* insert the initrd in the second
4427		* module slot
4428		*/
4429		tmplLine->type =
4430		preferredLineType(LT_INITRD,
4431		config->cfi);
4432		free(tmplLine->elements[0].item);
4433		tmplLine->elements[0].item =
4434		strdup(getKeywordByType
4435		(tmplLine->type,
4436		config->cfi)->key);
4437		initrdVal =
4438		getInitrdVal(config, prefix,
4439		tmplLine,
4440		newKernelInitrd,
4441		extraInitrds,
4442		extraInitrdCount);
4443		newLine =
4444		addLineTmpl(new, tmplLine, newLine,
4445		initrdVal, config->cfi);
4446		free(initrdVal);
4447		needs &= ~NEED_INITRD;
4448		}
4449
4450		} else if (isinitrd(tmplLine->type)
4451		&& tmplLine->numElements >= 2) {
4452		if (needs & NEED_INITRD && new->multiboot
4453		&& !template->multiboot
4454		&& config->cfi->mbInitRdIsModule) {
4455		/* make sure we don't insert the
4456		* module initrd before the module
4457		* kernel... if we don't do it here,
4458		* it will be inserted following the
4459		* template.
4460		*/
4461		if (!needs & NEED_KERNEL) {
4462		char *initrdVal;
4463
4464		initrdVal =
4465		getInitrdVal(config, prefix,
4466		tmplLine,
4467		newKernelInitrd,
4468		extraInitrds,
4469		extraInitrdCount);
4470		newLine =
4471		addLine(new, config->cfi,
4472		LT_MBMODULE,
4473		config->
4474		secondaryIndent,
4475		initrdVal);
4476		free(initrdVal);
4477		needs &= ~NEED_INITRD;
4478		}
4479		} else if (needs & NEED_INITRD) {
4480		char *initrdVal;
4481		initrdVal =
4482		getInitrdVal(config, prefix,
4483		tmplLine,
4484		newKernelInitrd,
4485		extraInitrds,
4486		extraInitrdCount);
4487		newLine =
4488		addLineTmpl(new, tmplLine, newLine,
4489		initrdVal, config->cfi);
4490		free(initrdVal);
4491		needs &= ~NEED_INITRD;
4492		}
4493
4494		} else if (tmplLine->type == LT_MENUENTRY &&
4495		(needs & NEED_TITLE)) {
4496		requote(tmplLine, config->cfi);
4497		char *nkt = malloc(strlen(newKernelTitle) + 3);
4498		strcpy(nkt, "'");
4499		strcat(nkt, newKernelTitle);
4500		strcat(nkt, "'");
4501		newLine =
4502		addLineTmpl(new, tmplLine, newLine, nkt,
4503		config->cfi);
4504		free(nkt);
4505		needs &= ~NEED_TITLE;
4506		} else if (tmplLine->type == LT_TITLE &&
4507		(needs & NEED_TITLE)) {
4508		if (tmplLine->numElements >= 2) {
4509		newLine =
4510		addLineTmpl(new, tmplLine, newLine,
4511		newKernelTitle,
4512		config->cfi);
4513		needs &= ~NEED_TITLE;
4514		} else if (tmplLine->numElements == 1 &&
4515		config->cfi->titleBracketed) {
4516		/* addLineTmpl doesn't handle
4517		* titleBracketed */
4518		newLine =
4519		addLine(new, config->cfi, LT_TITLE,
4520		tmplLine->indent,
4521		newKernelTitle);
4522		needs &= ~NEED_TITLE;
4523		}
4524		} else if (tmplLine->type == LT_ECHO) {
4525		requote(tmplLine, config->cfi);
4526		static const char *prefix = "'Loading ";
4527		if (tmplLine->numElements > 1 &&
4528		strstr(tmplLine->elements[1].item, prefix)
4529		&& masterLine->next
4530		&& iskernel(masterLine->next->type)) {
4531		char *newTitle =
4532		malloc(strlen(prefix) +
4533		strlen(newKernelTitle) + 2);
4534
4535		strcpy(newTitle, prefix);
4536		strcat(newTitle, newKernelTitle);
4537		strcat(newTitle, "'");
4538		newLine =
4539		addLine(new, config->cfi, LT_ECHO,
4540		tmplLine->indent, newTitle);
4541		free(newTitle);
4542		} else {
4543		/* pass through other lines from the
4544		* template */
4545		newLine =
4546		addLineTmpl(new, tmplLine, newLine,
4547		NULL, config->cfi);
4548		}
4549		} else if (tmplLine->type == LT_DEVTREE &&
4550		tmplLine->numElements == 2
4551		&& newDevTreePath) {
4552		newLine =
4553		addLineTmpl(new, tmplLine, newLine,
4554		newDevTreePath + strlen(prefix),
4555		config->cfi);
4556		needs &= ~NEED_DEVTREE;
4557		} else if (tmplLine->type == LT_ENTRY_END
4558		&& needs & NEED_DEVTREE) {
4559		const char *ndtp = newDevTreePath;
4560		if (!strncmp
4561		(newDevTreePath, prefix, strlen(prefix)))
4562		ndtp += strlen(prefix);
4563		newLine = addLine(new, config->cfi, LT_DEVTREE,
4564		config->secondaryIndent,
4565		ndtp);
4566		needs &= ~NEED_DEVTREE;
4567		newLine =
4568		addLineTmpl(new, tmplLine, newLine, NULL,
4569		config->cfi);
4570		} else {
4571		/* pass through other lines from the template */
4572		newLine =
4573		addLineTmpl(new, tmplLine, newLine, NULL,
4574		config->cfi);
4575		}
4576		}
4577
4578		} else {
4579		/* don't have a template, so start the entry with the
4580		* appropriate starting line
4581		*/
4582		switch (config->cfi->entryStart) {
4583		case LT_KERNEL:
4584		case LT_KERNEL_EFI:
4585		case LT_KERNEL_16:
4586		if (new->multiboot && config->cfi->mbHyperFirst) {
4587		/* fall through to LT_HYPER */
4588		} else {
4589		newLine = addLine(new, config->cfi,
4590		preferredLineType(LT_KERNEL,
4591		config->
4592		cfi),
4593		config->primaryIndent,
4594		newKernelPath +
4595		strlen(prefix));
4596		needs &= ~NEED_KERNEL;
4597		break;
4598		}
4599
4600		case LT_HYPER:
4601		newLine = addLine(new, config->cfi, LT_HYPER,
4602		config->primaryIndent,
4603		newMBKernel + strlen(prefix));
4604		needs &= ~NEED_MB;
4605		break;
4606
4607		case LT_MENUENTRY:{
4608		char *nkt = malloc(strlen(newKernelTitle) + 3);
4609		strcpy(nkt, "'");
4610		strcat(nkt, newKernelTitle);
4611		strcat(nkt, "'");
4612		newLine =
4613		addLine(new, config->cfi, LT_MENUENTRY,
4614		config->primaryIndent, nkt);
4615		free(nkt);
4616		needs &= ~NEED_TITLE;
4617		needs |= NEED_END;
4618		break;
4619		}
4620		case LT_TITLE:
4621		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4622		char *templabel;
4623		int x = 0, y = 0;
4624
4625		templabel = strdup(newKernelTitle);
4626		while (templabel[x]) {
4627		if (templabel[x] == ' ') {
4628		y = x;
4629		while (templabel[y]) {
4630		templabel[y] =
4631		templabel[y + 1];
4632		y++;
4633		}
4634		}
4635		x++;
4636		}
4637		newLine = addLine(new, config->cfi, LT_TITLE,
4638		config->primaryIndent,
4639		templabel);
4640		free(templabel);
4641		} else {
4642		newLine = addLine(new, config->cfi, LT_TITLE,
4643		config->primaryIndent,
4644		newKernelTitle);
4645		}
4646		needs &= ~NEED_TITLE;
4647		break;
4648
4649		default:
4650		abort();
4651		}
4652		}
4653
4654		struct singleLine *endLine = NULL;
4655		endLine = getLineByType(LT_ENTRY_END, new->lines);
4656		if (endLine) {
4657		removeLine(new, endLine);
4658		needs |= NEED_END;
4659		}
4660
4661		/* add the remainder of the lines, i.e. those that either
4662		* weren't present in the template, or in the case of no template,
4663		* all the lines following the entryStart.
4664		*/
4665		if (needs & NEED_TITLE) {
4666		newLine = addLine(new, config->cfi, LT_TITLE,
4667		config->secondaryIndent, newKernelTitle);
4668		needs &= ~NEED_TITLE;
4669		}
4670		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4671		newLine = addLine(new, config->cfi, LT_HYPER,
4672		config->secondaryIndent,
4673		newMBKernel + strlen(prefix));
4674		needs &= ~NEED_MB;
4675		}
4676		if (needs & NEED_KERNEL) {
4677		newLine = addLine(new, config->cfi,
4678		(new->multiboot
4679		&& getKeywordByType(LT_MBMODULE,
4680		config->cfi))
4681		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4682		config->
4683		cfi),
4684		config->secondaryIndent,
4685		newKernelPath + strlen(prefix));
4686		needs &= ~NEED_KERNEL;
4687		}
4688		if (needs & NEED_MB) {
4689		newLine = addLine(new, config->cfi, LT_HYPER,
4690		config->secondaryIndent,
4691		newMBKernel + strlen(prefix));
4692		needs &= ~NEED_MB;
4693		}
4694		if (needs & NEED_INITRD) {
4695		char *initrdVal;
4696		initrdVal =
4697		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4698		extraInitrds, extraInitrdCount);
4699		newLine =
4700		addLine(new, config->cfi,
4701		(new->multiboot
4702		&& getKeywordByType(LT_MBMODULE, config->cfi))
4703		? LT_MBMODULE : preferredLineType(LT_INITRD,
4704		config->cfi),
4705		config->secondaryIndent, initrdVal);
4706		free(initrdVal);
4707		needs &= ~NEED_INITRD;
4708		}
4709		if (needs & NEED_DEVTREE) {
4710		newLine = addLine(new, config->cfi, LT_DEVTREE,
4711		config->secondaryIndent, newDevTreePath);
4712		needs &= ~NEED_DEVTREE;
4713		}
4714
4715		/* NEEDS_END must be last on bootloaders that need it... */
4716		if (needs & NEED_END) {
4717		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4718		config->secondaryIndent, NULL);
4719		needs &= ~NEED_END;
4720		}
4721
4722		if (needs) {
4723		printf(_("grubby: needs=%d, aborting\n"), needs);
4724		abort();
4725		}
4726
4727		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4728		newMBKernelArgs, NULL))
4729		return 1;
4730
4731		return 0;
4732		}
4733
4734		int main(int argc, const char **argv)
4735		{
4736		poptContext optCon;
4737		const char *grubConfig = NULL;
4738		char *outputFile = NULL;
4739		int arg = 0;
4740		int flags = 0;
4741		int badImageOkay = 0;
4742		int configureGrub2 = 0;
4743		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4744		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4745		int configureExtLinux = 0;
4746		int bootloaderProbe = 0;
4747		int extraInitrdCount = 0;
4748		char *updateKernelPath = NULL;
4749		char *newKernelPath = NULL;
4750		char *removeKernelPath = NULL;
4751		char *newKernelArgs = NULL;
4752		char *newKernelInitrd = NULL;
4753		char *newKernelTitle = NULL;
4754		char *newDevTreePath = NULL;
4755		char *newMBKernel = NULL;
4756		char *newMBKernelArgs = NULL;
4757		int newIndex = 0;
4758		char *removeMBKernelArgs = NULL;
4759		char *removeMBKernel = NULL;
4760		char *bootPrefix = NULL;
4761		char *defaultKernel = NULL;
4762		char *removeArgs = NULL;
4763		char *kernelInfo = NULL;
4764		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4765		char *envPath = NULL;
4766		const char *chptr = NULL;
4767		struct configFileInfo *cfi = NULL;
4768		struct grubConfig *config;
4769		struct singleEntry *template = NULL;
4770		int copyDefault = 0, makeDefault = 0;
4771		int displayDefault = 0;
4772		int displayDefaultIndex = 0;
4773		int displayDefaultTitle = 0;
4774		int defaultIndex = -1;
4775		struct poptOption options[] = {
4776		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4777		_("add an entry for the specified kernel"), _("kernel-path")},
4778		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4779		_("add an entry for the specified multiboot kernel"), NULL},
4780		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4781		_("default arguments for the new kernel or new arguments for "
4782		"kernel being updated"), _("args")},
4783		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4784		_("default arguments for the new multiboot kernel or "
4785		"new arguments for multiboot kernel being updated"), NULL},
4786		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4787		_
4788		("don't sanity check images in boot entries (for testing only)"),
4789		NULL},
4790		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4791		_
4792		("filesystem which contains /boot directory (for testing only)"),
4793		_("bootfs")},
4794		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4795		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4796		_("check which bootloader is installed on boot sector")},
4797		#endif
4798		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4799		_("path to grub config file to update (\"-\" for stdin)"),
4800		_("path")},
4801		{"copy-default", 0, 0, &copyDefault, 0,
4802		_("use the default boot entry as a template for the new entry "
4803		"being added; if the default is not a linux image, or if "
4804		"the kernel referenced by the default image does not exist, "
4805		"the first linux entry whose kernel does exist is used as the "
4806		"template"), NULL},
4807		{"debug", 0, 0, &debug, 0,
4808		_("print debugging information for failures")},
4809		{"default-kernel", 0, 0, &displayDefault, 0,
4810		_("display the path of the default kernel")},
4811		{"default-index", 0, 0, &displayDefaultIndex, 0,
4812		_("display the index of the default kernel")},
4813		{"default-title", 0, 0, &displayDefaultTitle, 0,
4814		_("display the title of the default kernel")},
4815		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4816		_("device tree file for new stanza"), _("dtb-path")},
4817		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4818		_("device tree directory for new stanza"), _("dtb-path")},
4819		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4820		_("configure elilo bootloader")},
4821		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4822		_("force grub2 stanzas to use efi")},
4823		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4824		_("path for environment data"),
4825		_("path")},
4826		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4827		_("configure extlinux bootloader (from syslinux)")},
4828		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4829		_("configure grub bootloader")},
4830		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4831		_("configure grub2 bootloader")},
4832		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4833		_("display boot information for specified kernel"),
4834		_("kernel-path")},
4835		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4836		_("initrd image for the new kernel"), _("initrd-path")},
4837		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4838		_
4839		("auxiliary initrd image for things other than the new kernel"),
4840		_("initrd-path")},
4841		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4842		_("configure lilo bootloader")},
4843		{"make-default", 0, 0, &makeDefault, 0,
4844		_("make the newly added entry the default boot entry"), NULL},
4845		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4846		_("path to output updated config file (\"-\" for stdout)"),
4847		_("path")},
4848		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4849		_("remove kernel arguments"), NULL},
4850		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4851		_("remove multiboot kernel arguments"), NULL},
4852		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4853		_("remove all entries for the specified kernel"),
4854		_("kernel-path")},
4855		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4856		_("remove all entries for the specified multiboot kernel"),
4857		NULL},
4858		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4859		_("make the first entry referencing the specified kernel "
4860		"the default"), _("kernel-path")},
4861		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4862		_("make the given entry index the default entry"),
4863		_("entry-index")},
4864		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4865		_("use the given index when creating a new entry"),
4866		_("entry-index")},
4867		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4868		_("configure silo bootloader")},
4869		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4870		_("title to use for the new kernel entry"), _("entry-title")},
4871		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4872		_("updated information for the specified kernel"),
4873		_("kernel-path")},
4874		{"version", 'v', 0, NULL, 'v',
4875		_("print the version of this program and exit"), NULL},
4876		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4877		_("configure yaboot bootloader")},
4878		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4879		_("configure zipl bootloader")},
4880		POPT_AUTOHELP {0, 0, 0, 0, 0}
4881		};
4882
4883		useextlinuxmenu = 0;
4884
4885		int i = 0;
4886		for (int j = 1; j < argc; j++)
4887		i += strlen(argv[j]) + 1;
4888		saved_command_line = malloc(i);
4889		if (!saved_command_line) {
4890		fprintf(stderr, "grubby: %m\n");
4891		exit(1);
4892		}
4893		saved_command_line[0] = '\0';
4894		for (int j = 1; j < argc; j++) {
4895		strcat(saved_command_line, argv[j]);
4896		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4897		}
4898
4899		optCon = poptGetContext("grubby", argc, argv, options, 0);
4900		poptReadDefaultConfig(optCon, 1);
4901
4902		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4903		switch (arg) {
4904		case 'v':
4905		printf("grubby version %s\n", VERSION);
4906		exit(0);
4907		break;
4908		case 'i':
4909		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4910		extraInitrds[extraInitrdCount++] =
4911		strdup(poptGetOptArg(optCon));
4912		} else {
4913		fprintf(stderr,
4914		_
4915		("grubby: extra initrd maximum is %d\n"),
4916		extraInitrdCount);
4917		return 1;
4918		}
4919		break;
4920		}
4921		}
4922
4923		if (arg < -1) {
4924		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4925		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4926		poptStrerror(arg));
4927		return 1;
4928		}
4929
4930		if ((chptr = poptGetArg(optCon))) {
4931		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4932		return 1;
4933		}
4934
4935		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
4936		configureYaboot + configureSilo + configureZipl +
4937		configureExtLinux) > 1) {
4938		fprintf(stderr,
4939		_("grubby: cannot specify multiple bootloaders\n"));
4940		return 1;
4941		} else if (bootloaderProbe && grubConfig) {
4942		fprintf(stderr,
4943		_
4944		("grubby: cannot specify config file with --bootloader-probe\n"));
4945		return 1;
4946		} else if (configureGrub2) {
4947		cfi = &grub2ConfigType;
4948		if (envPath)
4949		cfi->envFile = envPath;
4950		} else if (configureLilo) {
4951		cfi = &liloConfigType;
4952		} else if (configureGrub) {
4953		cfi = &grubConfigType;
4954		} else if (configureELilo) {
4955		cfi = &eliloConfigType;
4956		} else if (configureYaboot) {
4957		cfi = &yabootConfigType;
4958		} else if (configureSilo) {
4959		cfi = &siloConfigType;
4960		} else if (configureZipl) {
4961		cfi = &ziplConfigType;
4962		} else if (configureExtLinux) {
4963		cfi = &extlinuxConfigType;
4964		useextlinuxmenu = 1;
4965		}
4966
4967		if (!cfi) {
4968		if (grub2FindConfig(&grub2ConfigType)) {
4969		cfi = &grub2ConfigType;
4970		if (envPath)
4971		cfi->envFile = envPath;
4972		} else
4973		#ifdef __ia64__
4974		cfi = &eliloConfigType;
4975		#elif __powerpc__
4976		cfi = &yabootConfigType;
4977		#elif __sparc__
4978		cfi = &siloConfigType;
4979		#elif __s390__
4980		cfi = &ziplConfigType;
4981		#elif __s390x__
4982		cfi = &ziplConfigtype;
4983		#else
4984		cfi = &grubConfigType;
4985		#endif
4986		}
4987
4988		if (!grubConfig) {
4989		if (cfi->findConfig)
4990		grubConfig = cfi->findConfig(cfi);
4991		if (!grubConfig)
4992		grubConfig = cfi->defaultConfig;
4993		}
4994
4995		if (bootloaderProbe && (displayDefault || kernelInfo ||
4996		newKernelPath || removeKernelPath || makeDefault
4997		|| defaultKernel || displayDefaultIndex
4998		|| displayDefaultTitle
4999		|| (defaultIndex >= 0))) {
5000		fprintf(stderr,
5001		_("grubby: --bootloader-probe may not be used with "
5002		"specified option"));
5003		return 1;
5004		}
5005
5006		if ((displayDefault || kernelInfo) && (newKernelPath ||
5007		removeKernelPath)) {
5008		fprintf(stderr, _("grubby: --default-kernel and --info may not "
5009		"be used when adding or removing kernels\n"));
5010		return 1;
5011		}
5012
5013		if (newKernelPath && !newKernelTitle) {
5014		fprintf(stderr, _("grubby: kernel title must be specified\n"));
5015		return 1;
5016		} else if (!newKernelPath && (copyDefault ||
5017		(newKernelInitrd && !updateKernelPath) ||
5018		makeDefault || extraInitrdCount > 0)) {
5019		fprintf(stderr, _("grubby: kernel path expected\n"));
5020		return 1;
5021		}
5022
5023		if (newKernelPath && updateKernelPath) {
5024		fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5025		"not be used together"));
5026		return 1;
5027		}
5028
5029		if (makeDefault && defaultKernel) {
5030		fprintf(stderr, _("grubby: --make-default and --default-kernel "
5031		"may not be used together\n"));
5032		return 1;
5033		} else if (defaultKernel && removeKernelPath &&
5034		!strcmp(defaultKernel, removeKernelPath)) {
5035		fprintf(stderr,
5036		_("grubby: cannot make removed kernel the default\n"));
5037		return 1;
5038		} else if (defaultKernel && newKernelPath &&
5039		!strcmp(defaultKernel, newKernelPath)) {
5040		makeDefault = 1;
5041		defaultKernel = NULL;
5042		} else if (defaultKernel && (defaultIndex >= 0)) {
5043		fprintf(stderr,
5044		_("grubby: --set-default and --set-default-index "
5045		"may not be used together\n"));
5046		return 1;
5047		}
5048
5049		if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5050		fprintf(stderr,
5051		_("grubby: output file must be specified if stdin "
5052		"is used\n"));
5053		return 1;
5054		}
5055
5056		if (!removeKernelPath && !newKernelPath && !displayDefault
5057		&& !defaultKernel && !kernelInfo && !bootloaderProbe
5058		&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5059		&& !displayDefaultTitle && (defaultIndex == -1)) {
5060		fprintf(stderr, _("grubby: no action specified\n"));
5061		return 1;
5062		}
5063
5064		flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5065
5066		if (cfi->needsBootPrefix) {
5067		if (!bootPrefix) {
5068		bootPrefix = findBootPrefix();
5069		if (!bootPrefix)
5070		return 1;
5071		} else {
5072		/* this shouldn't end with a / */
5073		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5074		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5075		}
5076		} else {
5077		bootPrefix = "";
5078		}
5079
5080		if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5081		fprintf(stderr,
5082		_("grubby: %s doesn't allow multiple initrds\n"),
5083		cfi->defaultConfig);
5084		return 1;
5085		}
5086
5087		if (bootloaderProbe) {
5088		int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5089		struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5090
5091		const char *grub2config = grub2FindConfig(&grub2ConfigType);
5092		if (grub2config) {
5093		gconfig = readConfig(grub2config, &grub2ConfigType);
5094		if (!gconfig)
5095		gr2c = 1;
5096		else
5097		gr2c = checkForGrub2(gconfig);
5098		}
5099
5100		const char *grubconfig = grubFindConfig(&grubConfigType);
5101		if (!access(grubconfig, F_OK)) {
5102		gconfig = readConfig(grubconfig, &grubConfigType);
5103		if (!gconfig)
5104		grc = 1;
5105		else
5106		grc = checkForGrub(gconfig);
5107		}
5108
5109		if (!access(liloConfigType.defaultConfig, F_OK)) {
5110		lconfig =
5111		readConfig(liloConfigType.defaultConfig,
5112		&liloConfigType);
5113		if (!lconfig)
5114		lrc = 1;
5115		else
5116		lrc = checkForLilo(lconfig);
5117		}
5118
5119		if (!access(eliloConfigType.defaultConfig, F_OK)) {
5120		econfig = readConfig(eliloConfigType.defaultConfig,
5121		&eliloConfigType);
5122		if (!econfig)
5123		erc = 1;
5124		else
5125		erc = checkForElilo(econfig);
5126		}
5127
5128		if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5129		lconfig =
5130		readConfig(extlinuxConfigType.defaultConfig,
5131		&extlinuxConfigType);
5132		if (!lconfig)
5133		extrc = 1;
5134		else
5135		extrc = checkForExtLinux(lconfig);
5136		}
5137
5138		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5139		yconfig = readConfig(yabootConfigType.defaultConfig,
5140		&yabootConfigType);
5141		if (!yconfig)
5142		yrc = 1;
5143		else
5144		yrc = checkForYaboot(yconfig);
5145		}
5146
5147		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5148		|| erc == 1)
5149		return 1;
5150
5151		if (lrc == 2)
5152		printf("lilo\n");
5153		if (gr2c == 2)
5154		printf("grub2\n");
5155		if (grc == 2)
5156		printf("grub\n");
5157		if (extrc == 2)
5158		printf("extlinux\n");
5159		if (yrc == 2)
5160		printf("yaboot\n");
5161		if (erc == 2)
5162		printf("elilo\n");
5163
5164		return 0;
5165		}
5166
5167		if (grubConfig == NULL) {
5168		printf("Could not find bootloader configuration file.\n");
5169		exit(1);
5170		}
5171
5172		config = readConfig(grubConfig, cfi);
5173		if (!config)
5174		return 1;
5175
5176		if (displayDefault) {
5177		struct singleLine *line;
5178		struct singleEntry *entry;
5179		char *rootspec;
5180
5181		if (config->defaultImage == -1)
5182		return 0;
5183		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5184		cfi->defaultIsSaved)
5185		config->defaultImage = 0;
5186		entry = findEntryByIndex(config, config->defaultImage);
5187		if (!entry)
5188		return 0;
5189		if (!suitableImage(entry, bootPrefix, 0, flags))
5190		return 0;
5191
5192		line =
5193		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5194		LT_KERNEL_16, entry->lines);
5195		if (!line)
5196		return 0;
5197
5198		rootspec = getRootSpecifier(line->elements[1].item);
5199		printf("%s%s\n", bootPrefix, line->elements[1].item +
5200		((rootspec != NULL) ? strlen(rootspec) : 0));
5201
5202		return 0;
5203
5204		} else if (displayDefaultTitle) {
5205		struct singleLine *line;
5206		struct singleEntry *entry;
5207
5208		if (config->defaultImage == -1)
5209		return 0;
5210		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5211		cfi->defaultIsSaved)
5212		config->defaultImage = 0;
5213		entry = findEntryByIndex(config, config->defaultImage);
5214		if (!entry)
5215		return 0;
5216
5217		if (!configureGrub2) {
5218		char *title;
5219		line = getLineByType(LT_TITLE, entry->lines);
5220		if (!line)
5221		return 0;
5222		title = extractTitle(config, line);
5223		if (!title)
5224		return 0;
5225		printf("%s\n", title);
5226		free(title);
5227		} else {
5228		char *title;
5229
5230		dbgPrintf
5231		("This is GRUB2, default title is embeded in menuentry\n");
5232		line = getLineByType(LT_MENUENTRY, entry->lines);
5233		if (!line)
5234		return 0;
5235		title = grub2ExtractTitle(line);
5236		if (title)
5237		printf("%s\n", title);
5238		}
5239		return 0;
5240
5241		} else if (displayDefaultIndex) {
5242		if (config->defaultImage == -1)
5243		return 0;
5244		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5245		cfi->defaultIsSaved)
5246		config->defaultImage = 0;
5247		printf("%i\n", config->defaultImage);
5248		return 0;
5249
5250		} else if (kernelInfo)
5251		return displayInfo(config, kernelInfo, bootPrefix);
5252
5253		if (copyDefault) {
5254		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5255		if (!template)
5256		return 1;
5257		}
5258
5259		markRemovedImage(config, removeKernelPath, bootPrefix);
5260		markRemovedImage(config, removeMBKernel, bootPrefix);
5261		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5262		makeDefault, bootPrefix, flags, defaultIndex);
5263		setFallbackImage(config, newKernelPath != NULL);
5264		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5265		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5266		return 1;
5267		if (updateKernelPath && newKernelInitrd) {
5268		if (newMBKernel) {
5269		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5270		bootPrefix, newKernelInitrd,
5271		newKernelTitle))
5272		return 1;
5273		} else {
5274		if (updateInitrd(config, updateKernelPath, bootPrefix,
5275		newKernelInitrd, newKernelTitle))
5276		return 1;
5277		}
5278		}
5279		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5280		newKernelTitle, newKernelArgs, newKernelInitrd,
5281		(const char **)extraInitrds, extraInitrdCount,
5282		newMBKernel, newMBKernelArgs, newDevTreePath,
5283		newIndex))
5284		return 1;
5285
5286		if (numEntries(config) == 0) {
5287		fprintf(stderr,
5288		_("grubby: doing this would leave no kernel entries. "
5289		"Not writing out new config.\n"));
5290		return 1;
5291		}
5292
5293	if (!outputFile)	if (!outputFile)
5294	outputFile = grubConfig;	outputFile = (char *)grubConfig;
5295
5296	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5297	}	}

---

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Legend: Removed from v.926   changed lines   Added in v.3014