Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1850 by niro, Mon Jul 2 13:09:12 2012 UTC	revision 3029 by niro, Tue Jun 27 14:46:56 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	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#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_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	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 111  struct singleEntry {	Line 129  struct singleEntry {
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)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/etc/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
200	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	};	{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
248	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
249	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
250	"/boot/grub/grub.cfg",	};
251	NULL
252	};	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static int i = -1;	{
254	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256	if (i == -1) {	"/boot/grub/grub.cfg",
257	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
258	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
259	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	dbgPrintf("not found\n");	char *ret = calloc(l + 1, sizeof(*ret));
345	return configFiles[i];	if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int count = 0;	{
400		int count = 0;
401
402	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	char *grub2ExtractTitle(struct singleLine * line) {	static int iskernel(enum lineType_e type)
429	char * current;	{
430	char * current_indent;	return (type == LT_KERNEL || type == LT_KERNEL_EFI
431	int current_len;	|| type == LT_KERNEL_16);
432	int current_indent_len;	}
433	int i;
434		static int isinitrd(enum lineType_e type)
435	/* bail out if line does not start with menuentry */	{
436	if (strcmp(line->elements[0].item, "menuentry"))	return (type == LT_INITRD || type == LT_INITRD_EFI
437	return NULL;	|| type == LT_INITRD_16);
438		}
	i = 1;
	current = line->elements[i].item;
	current_len = strlen(current);
	/* if second word is quoted, strip the quotes and return single word */
	if (isquote(*current) && isquote(current[current_len - 1])) {
	char *tmp;
	tmp = strdup(current);
	*(tmp + current_len - 1) = '\0';
	return ++tmp;
	}
439
440	/* if no quotes, return second word verbatim */	char *grub2ExtractTitle(struct singleLine *line)
441	if (!isquote(*current))	{
442	return current;	char *current;
443		char *current_indent;
444	/* second element start with a quote, so we have to find the element	int current_len;
445	* whose last character is also quote (assuming it's the closing one) */	int current_indent_len;
446	int resultMaxSize;	int i;
447	char * result;
448		/* bail out if line does not start with menuentry */
449	resultMaxSize = sizeOfSingleLine(line);	if (strcmp(line->elements[0].item, "menuentry"))
450	result = malloc(resultMaxSize);	return NULL;
451	snprintf(result, resultMaxSize, "%s", ++current);
452		i = 1;
	i++;
	for (; i < line->numElements; ++i) {
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (!isquote(current[current_len-1])) {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 1,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
763	if (kw->type == type)	int kwl = strlen(kw->key);
764	return kw;	int ll = strlen(label);
765		int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785	}	}
786
787	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
789	if (kt)	{
790	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
791	return "unknown";	switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812	}	}
813
814	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	if (!blkid)	struct configFileInfo *cfi)
816	blkid_get_cache(&blkid, NULL);	{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822		}
823
824	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825		{
826		struct keywordTypes *kt = getKeywordByType(type, cfi);
827		if (kt)
828		return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
841	struct configFileInfo * cfi) {	{
842	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	if (!blkid)
843	if (!strcmp(keyword, kw->key))	blkid_get_cache(&blkid, NULL);
844	return kw->type;
845	}	return blkid_get_tag_value(blkid, "UUID", device);
	return LT_UNKNOWN;
846	}	}
847
848	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
849	struct singleLine * line) {	struct configFileInfo *cfi)
850	dbgPrintf("getLineByType(%d): ", type);	{
851	for (; line; line = line->next) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	dbgPrintf("%d:%s ", line->type,	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	line->numElements ? line->elements[0].item : "(empty)");	return kw->type;
854	if (line->type & type) break;	}
855	}	return LT_UNKNOWN;
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
856	}	}
857
858	static int isBracketedTitle(struct singleLine * line) {	static struct singleLine *getLineByType(enum lineType_e type,
859	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct singleLine *line)
860	int len = strlen(line->elements[0].item);	{
861	if (*(line->elements[0].item + len - 1) == ']') {	dbgPrintf("getLineByType(%d): ", type);
862	/* FIXME: this is a hack... */	for (; line; line = line->next) {
863	if (strcmp(line->elements[0].item, "[defaultboot]")) {	dbgPrintf("%d:%s ", line->type,
864	return 1;	line->numElements ? line->elements[0].
865	}	item : "(empty)");
866	}	if (line->type & type)
867	}	break;
868	return 0;	}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871		}
872
873		static int isBracketedTitle(struct singleLine *line)
874		{
875		if (line->numElements == 1 && *line->elements[0].item == '[') {
876		int len = strlen(line->elements[0].item);
877		if (*(line->elements[0].item + len - 1) == ']') {
878		/* FIXME: this is a hack... */
879		if (strcmp(line->elements[0].item, "[defaultboot]")) {
880		return 1;
881		}
882		}
883		}
884		return 0;
885	}	}
886
887	static int isEntryStart(struct singleLine * line,	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888	struct configFileInfo * cfi) {	{
889	return line->type == cfi->entryStart || line->type == LT_OTHER ||	return line->type == cfi->entryStart || line->type == LT_OTHER ||
890	(cfi->titleBracketed && isBracketedTitle(line));	(cfi->titleBracketed && isBracketedTitle(line));
891	}	}
892
893	/* extract the title from within brackets (for zipl) */	/* extract the title from within brackets (for zipl) */
894	static char * extractTitle(struct singleLine * line) {	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895	/* bracketed title... let's extract it (leaks a byte) */	{
896	char * title;	/* bracketed title... let's extract it */
897	title = strdup(line->elements[0].item);	char *title = NULL;
898	title++;	if (line->type == LT_TITLE) {
899	*(title + strlen(title) - 1) = '\0';	char *tmp = line->elements[cfg->cfi->titlePosition].item;
900	return title;	if (cfg->cfi->titleBracketed) {
901	}	tmp++;
902		title = strdup(tmp);
903	static int readFile(int fd, char ** bufPtr) {	*(title + strlen(title) - 1) = '\0';
904	int alloced = 0, size = 0, i = 0;	} else {
905	char * buf = NULL;	title = strdup(tmp);
906		}
907	do {	} else if (line->type == LT_MENUENTRY)
908	size += i;	title = strdup(line->elements[1].item);
909	if ((size + 1024) > alloced) {	else
910	alloced += 4096;	return NULL;
911	buf = realloc(buf, alloced + 1);	return title;
912	}	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
	buf = realloc(buf, size + 2);
	if (size == 0)
	buf[size++] = '\n';
	else
	if (buf[size - 1] != '\n')
	buf[size++] = '\n';
	buf[size] = '\0';
913
914	*bufPtr = buf;	static int readFile(int fd, char **bufPtr)
915		{
916		int alloced = 0, size = 0, i = 0;
917		char *buf = NULL;
918
919	return 0;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927	static void lineInit(struct singleLine * line) {	if (i < 0) {
928	line->indent = NULL;	fprintf(stderr, _("error reading input: %s\n"),
929	line->elements = NULL;	strerror(errno));
930	line->numElements = 0;	free(buf);
931	line->next = NULL;	return 1;
932	}	}
	struct singleLine * lineDup(struct singleLine * line) {
	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 (int i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
933
934	return newLine;	buf = realloc(buf, size + 2);
935	}	if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	static void lineFree(struct singleLine * line) {	*bufPtr = buf;
	if (line->indent) free(line->indent);
942
943	for (int i = 0; i < line->numElements; i++) {	return 0;
944	free(line->elements[i].item);	}
	free(line->elements[i].indent);
	}
945
946	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
947	lineInit(line);	{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
960	/* Need to handle this, because we strip the quotes from	newLine->next = NULL;
961	* menuentry when read it. */	newLine->type = line->type;
962	if (line->type == LT_MENUENTRY && i == 1) {	newLine->numElements = line->numElements;
963	if(!isquote(*line->elements[i].item))	newLine->elements = malloc(sizeof(*newLine->elements) *
964	fprintf(out, "\'%s\'", line->elements[i].item);	newLine->numElements);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
965
966	continue;	for (int i = 0; i < newLine->numElements; i++) {
967		newLine->elements[i].indent = strdup(line->elements[i].indent);
968		newLine->elements[i].item = strdup(line->elements[i].item);
969	}	}
970
971	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
972	if (fputc('"', out) == EOF) return -1;	}
	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;
	if (i < line->numElements - 1)
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (int i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (int i = 1; i < line->numElements; i++) {
	char *p;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (int j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	line->elements[i + 1].indent = line->elements[i].indent;	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191		}
1192		line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int 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;
	}
	}
	rc = readFile(in, &incoming);
	close(in);
	if (rc) return NULL;
	head = incoming;
	cfg = malloc(sizeof(*cfg));
	cfg->primaryIndent = strdup("");
	cfg->secondaryIndent = strdup("\t");
	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
	cfg->cfi = cfi;
	cfg->theLines = NULL;
	cfg->entries = NULL;
	cfg->fallbackImage = 0;
	/* copy everything we have */
	while (*head) {
	line = malloc(sizeof(*line));
	lineInit(line);
1262
1263	if (getNextLine(&head, line, cfi)) {	static struct grubConfig *readConfig(const char *inName,
1264	free(line);	struct configFileInfo *cfi)
1265	/* XXX memory leak of everything in cfg */	{
1266	return NULL;	int in;
1267	}	char *incoming = NULL, *head;
1268		int rc;
1269	if (!sawEntry && line->numElements) {	int sawEntry = 0;
1270	free(cfg->primaryIndent);	int movedLine = 0;
1271	cfg->primaryIndent = strdup(line->indent);	struct grubConfig *cfg;
1272	} else if (line->numElements) {	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	free(cfg->secondaryIndent);	char *end;
1274	cfg->secondaryIndent = strdup(line->indent);	struct singleEntry *entry = NULL;
1275	}	int len;
1276		char *buf;
1277	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1278	sawEntry = 1;	if (inName == NULL) {
1279	if (!entry) {	printf("Could not find bootloader configuration\n");
1280	cfg->entries = malloc(sizeof(*entry));	exit(1);
1281	entry = cfg->entries;	} else if (!strcmp(inName, "-")) {
1282	} else {	in = 0;
1283	entry->next = malloc(sizeof(*entry));	} else {
1284	entry = entry->next;	if ((in = open(inName, O_RDONLY)) < 0) {
1285	}	fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289		}
1290
1291	entry->skip = 0;	rc = readFile(in, &incoming);
1292	entry->multiboot = 0;	close(in);
1293	entry->lines = NULL;	if (rc)
1294	entry->next = NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1298	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->primaryIndent = strdup("");
1299	dbgPrintf("%s", line->indent);	cfg->secondaryIndent = strdup("\t");
1300	for (int i = 0; i < line->numElements; i++)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	cfg->cfi = cfi;
1302	dbgPrintf("\n");	cfg->theLines = NULL;
1303	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->entries = NULL;
1304	if (kwType && line->numElements == 3 &&	cfg->fallbackImage = 0;
1305	!strcmp(line->elements[1].item, kwType->key)) {	cfg->isModified = 0;
1306	dbgPrintf("Line sets default config\n");
1307	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	/* copy everything we have */
1308	defaultLine = line;	while (*head) {
1309	}	line = malloc(sizeof(*line));
1310	} else if (line->type == LT_DEFAULT && line->numElements == 2) {	lineInit(line);
1311	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1312	defaultLine = line;	if (getNextLine(&head, line, cfi)) {
1313		free(line);
1314	} else if (line->type == LT_KERNEL) {	/* XXX memory leak of everything in cfg */
1315	/* if by some freak chance this is multiboot and the "module"	return NULL;
1316	* 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.
	*/
	for (struct singleLine *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 (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1317
1318	for (int i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1319	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1320	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1321		} else if (line->numElements) {
1322		free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324		}
1325
1326	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1328	free(line->elements[i].indent);	if (!entry) {
1329	}	cfg->entries = malloc(sizeof(*entry));
1330	}	entry = cfg->entries;
1331		} else {
1332	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1333	line->elements[line->numElements - 1].indent;	entry = entry->next;
1334	line->elements[1].item = buf;	}
	line->numElements = 2;
	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
	/* let --remove-kernel="TITLE=what" work */
	len = 0;
	char *extras;
	char *title;
	for (int i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
	/* allocate mem for extra flags. */
	extras = malloc(len + 1);
	*extras = '\0';
	/* get title. */
	for (int i = 0; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	if (isquote(*line->elements[i].item))
	title = line->elements[i].item + 1;
	else
	title = line->elements[i].item;
1335
1336	len = strlen(title);	entry->skip = 0;
1337	if (isquote(title[len-1])) {	entry->multiboot = 0;
1338	strncat(buf, title,len-1);	entry->lines = NULL;
1339	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1340	}	}
	}
1341
1342	/* get extras */	if (line->type == LT_SET_VARIABLE) {
1343	int count = 0;	dbgPrintf("found 'set' command (%d elements): ",
1344	for (int i = 0; i < line->numElements; i++) {	line->numElements);
1345	if (count >= 2) {	dbgPrintf("%s", line->indent);
1346	strcat(extras, line->elements[i].item);	for (int i = 0; i < line->numElements; i++)
1347	strcat(extras, line->elements[i].indent);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348	}	line->elements[i].indent);
1349		dbgPrintf("\n");
1350	if (!strcmp(line->elements[i].item, "menuentry"))	struct keywordTypes *kwType =
1351	continue;	getKeywordByType(LT_DEFAULT, cfi);
1352		if (kwType && line->numElements == 3
1353	/* count ' or ", there should be two in menuentry line. */	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (isquote(*line->elements[i].item))	&& !is_special_grub2_variable(
1355	count++;	line->elements[2].item)) {
1356		dbgPrintf("Line sets default config\n");
1357	len = strlen(line->elements[i].item);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358		defaultLine = line;
1359	if (isquote(line->elements[i].item[len -1]))	}
1360	count++;	} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362	/* ok, we get the final ' or ", others are extras. */	* "module" lines came earlier in the template, make
1363	}	* sure to use LT_HYPER instead of LT_KERNEL now
1364	line->elements[1].indent =	*/
1365	line->elements[line->numElements - 2].indent;	if (entry && entry->multiboot)
1366	line->elements[1].item = buf;	line->type = LT_HYPER;
	line->elements[2].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[2].item = extras;
	line->numElements = 3;
	} 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 (isquote(*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 (isquote(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;
1367
1368	if (sawEntry) {	} else if (line->type == LT_MBMODULE) {
1369	if (!entry->lines)	/* go back and fix the LT_KERNEL line to indicate
1370	entry->lines = line;	* LT_HYPER instead, now that we know this is a
1371	else	* multiboot entry.  This only applies to grub, but
1372	last->next = line;	* that's the only place we should find LT_MBMODULE
1373	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	* lines anyway.
1374		*/
1375	/* we could have seen this outside of an entry... if so, we	for (struct singleLine * l = entry->lines; l;
1376	* ignore it like any other line we don't grok */	l = l->next) {
1377	if (line->type == LT_ENTRY_END && sawEntry)	if (l->type == LT_HYPER)
1378	sawEntry = 0;	break;
1379	} else {	else if (iskernel(l->type)) {
1380	if (!cfg->theLines)	l->type = LT_HYPER;
1381	cfg->theLines = line;	break;
1382	else	}
1383	last->next = line;	}
1384	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	entry->multiboot = 1;
	}
1385
1386	last = line;	} else if (line->type == LT_HYPER) {
1387	}	entry->multiboot = 1;
1388
1389	free(incoming);	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390		cfg->fallbackImage =
1391		strtol(line->elements[1].item, &end, 10);
1392		if (*end)
1393		cfg->fallbackImage = -1;
1394
1395		} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396		|| (line->type == LT_TITLE
1397		&& line->numElements > 1)) {
1398		/* make the title/default a single argument (undoing
1399		* our parsing) */
1400		len = 0;
1401		for (int i = 1; i < line->numElements; i++) {
1402		len += strlen(line->elements[i].item);
1403		len += strlen(line->elements[i].indent);
1404		}
1405		buf = malloc(len + 1);
1406		*buf = '\0';
1407
1408	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	for (int i = 1; i < line->numElements; i++) {
1409	if (defaultLine) {	strcat(buf, line->elements[i].item);
1410	if (defaultLine->numElements > 2 &&	free(line->elements[i].item);
1411	cfi->defaultSupportSaved &&
1412	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	if ((i + 1) != line->numElements) {
1413	cfg->defaultImage = DEFAULT_SAVED_GRUB2;	strcat(buf, line->elements[i].indent);
1414	} else if (cfi->defaultIsVariable) {	free(line->elements[i].indent);
1415	char *value = defaultLine->elements[2].item;	}
1416	while (*value && (*value == '"' || *value == '\'' ||	}
	*value == ' ' || *value == '\t'))
	value++;
	cfg->defaultImage = strtol(value, &end, 10);
	while (*end && (*end == '"' || *end == '\'' ||
	*end == ' ' || *end == '\t'))
	end++;
	if (*end) cfg->defaultImage = -1;
	} else if (cfi->defaultSupportSaved &&
	!strncmp(defaultLine->elements[1].item, "saved", 5)) {
	cfg->defaultImage = DEFAULT_SAVED;
	} else if (cfi->defaultIsIndex) {
	cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10);
	if (*end) cfg->defaultImage = -1;
	} else if (defaultLine->numElements >= 2) {
	int i = 0;
	while ((entry = findEntryByIndex(cfg, i))) {
	for (line = entry->lines; line; line = line->next)
	if (line->type == LT_TITLE) break;
	if (!cfi->titleBracketed) {
	if (line && (line->numElements >= 2) &&
	!strcmp(defaultLine->elements[1].item,
	line->elements[1].item)) break;
	} else if (line) {
	if (!strcmp(defaultLine->elements[1].item,
	extractTitle(line))) break;
	}
	i++;
	entry = NULL;
	}
1417
1418	if (entry){	line->elements[1].indent =
1419	cfg->defaultImage = i;	line->elements[line->numElements - 1].indent;
1420	}else{	line->elements[1].item = buf;
1421	cfg->defaultImage = -1;	line->numElements = 2;
1422	}	} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423	}	/* let --remove-kernel="TITLE=what" work */
1424	} else {	len = 0;
1425	cfg->defaultImage = 0;	char *extras;
1426	}	char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	return cfg;	/* allocate mem for extra flags. */
1438	}	extras = malloc(len + 1);
1439		*extras = '\0';
1440
1441		/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443		if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445		continue;
1446		if (isquote(*line->elements[i].item)
1447		&& quote_char == '\0') {
1448		/* ensure we properly pair off quotes */
1449		quote_char = *line->elements[i].item;
1450		title = line->elements[i].item + 1;
1451		} else {
1452		title = line->elements[i].item;
1453		}
1454
1455	static void writeDefault(FILE * out, char * indent,	len = strlen(title);
1456	char * separator, struct grubConfig * cfg) {	if (title[len - 1] == quote_char) {
1457	struct singleEntry * entry;	strncat(buf, title, len - 1);
1458	struct singleLine * line;	break;
1459	int i;	} else {
1460		strcat(buf, title);
1461	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	strcat(buf, line->elements[i].indent);
1462		}
1463	if (cfg->defaultImage == DEFAULT_SAVED)	}
	fprintf(out, "%sdefault%ssaved\n", indent, separator);
	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)
	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
	else if (cfg->defaultImage > -1) {
	if (cfg->cfi->defaultIsIndex) {
	if (cfg->cfi->defaultIsVariable) {
	fprintf(out, "%sset default=\"%d\"\n", indent,
	cfg->defaultImage);
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1464
1465	entry = cfg->entries;	/* get extras */
1466	while (entry && entry->skip) entry = entry->next;	int count = 0;
1467		quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	i = 0;	if (!strcmp
1476	while (entry && i < image) {	(line->elements[i].item, "menuentry"))
1477	entry = entry->next;	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	while (entry && entry->skip) entry = entry->next;	len = strlen(line->elements[i].item);
	i++;
	}
1488
1489	if (!entry) return;	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	line = getLineByType(LT_TITLE, entry->lines);	/* ok, we get the final ' or ", others are extras. */
1494		}
1495		line->elements[1].indent =
1496		line->elements[line->numElements - 2].indent;
1497		line->elements[1].item = buf;
1498		line->elements[2].indent =
1499		line->elements[line->numElements - 2].indent;
1500		line->elements[2].item = extras;
1501		line->numElements = 3;
1502		} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503		/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	if (line && line->numElements >= 2)	if (isquote(*line->elements[1].item))
1511	fprintf(out, "%sdefault%s%s\n", indent, separator,	memmove(line->elements[1].item,
1512	line->elements[1].item);	line->elements[1].item + 1,
1513	else if (line && (line->numElements == 1) &&	strlen(line->elements[1].item +
1514	cfg->cfi->titleBracketed) {	1) + 1);
1515	fprintf(out, "%sdefault%s%s\n", indent, separator,
1516	extractTitle(line));	last = line->numElements - 1;
1517	}	len = strlen(line->elements[last].item) - 1;
1518	}	if (isquote(line->elements[last].item[len]))
1519	}	line->elements[last].item[len] = '\0';
1520	}	}
1521		}
1522
1523	static int writeConfig(struct grubConfig * cfg, char * outName,	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	const char * prefix) {	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	FILE * out;	defaultLine = line;
1526	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(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;
	}
	}
	}
1527
1528	line = cfg->theLines;	/* If we find a generic config option which should live at the
1529	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	top of the file, move it there. Old versions of grubby were
1530	while (line) {	probably responsible for putting new images in the wrong
1531	if (line->type == LT_SET_VARIABLE && defaultKw &&	place in front of it anyway. */
1532	line->numElements == 3 &&	if (sawEntry && line->type == LT_GENERIC) {
1533	!strcmp(line->elements[1].item, defaultKw->key)) {	struct singleLine **l = &cfg->theLines;
1534	writeDefault(out, line->indent, line->elements[0].indent, cfg);	struct singleLine **last_nonws = &cfg->theLines;
1535	needs &= ~MAIN_DEFAULT;	while (*l) {
1536	} else if (line->type == LT_DEFAULT) {	if ((*l)->type != LT_WHITESPACE)
1537	writeDefault(out, line->indent, line->elements[0].indent, cfg);	last_nonws = &((*l)->next);
1538	needs &= ~MAIN_DEFAULT;	l = &((*l)->next);
1539	} else if (line->type == LT_FALLBACK) {	}
1540	if (cfg->fallbackImage > -1)	line->next = *last_nonws;
1541	fprintf(out, "%s%s%s%d\n", line->indent,	*last_nonws = line;
1542	line->elements[0].item, line->elements[0].indent,	movedLine = 1;
1543	cfg->fallbackImage);	continue; /* without setting 'last' */
1544	} else {	}
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1545
1546	line = line->next;	/* If a second line of whitespace happens after a generic
1547	}	* option which was moved, drop it. */
1548		if (movedLine && line->type == LT_WHITESPACE
1549		&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	if (needs & MAIN_DEFAULT) {	if (sawEntry) {
1558	writeDefault(out, cfg->primaryIndent, "=", cfg);	if (!entry->lines)
1559	needs &= ~MAIN_DEFAULT;	entry->lines = line;
1560	}	else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	i = 0;	/* we could have seen this outside of an entry... if
1566	while ((entry = findEntryByIndex(cfg, i++))) {	* so, we ignore it like any other line we don't grok
1567	if (entry->skip) continue;	*/
1568		if (line->type == LT_ENTRY_END && sawEntry)
1569		sawEntry = 0;
1570		} else {
1571		if (!cfg->theLines)
1572		cfg->theLines = line;
1573		else
1574		last->next = line;
1575		dbgPrintf("readConfig added %s to cfg\n",
1576		getKeyByType(line->type, cfi));
1577		}
1578
1579	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;
1580	}	}
	}
1581
1582	if (tmpOutName) {	free(incoming);
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
	}
	}
1583
1584	return 0;	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697	}	}
1698
1699	static int numEntries(struct grubConfig *cfg) {	static void writeDefault(FILE * out, char *indent,
1700	int i = 0;	char *separator, struct grubConfig *cfg)
1701	struct singleEntry * entry;	{
1702		struct singleEntry *entry;
1703	entry = cfg->entries;	struct singleLine *line;
1704	while (entry) {	int i;
1705	if (!entry->skip)
1706	i++;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707	entry = entry->next;	return;
1708	}
1709	return i;	if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		int trueIndex, currentIndex;
1716
1717		trueIndex = 0;
1718		currentIndex = 0;
1719
1720		while ((entry = findEntryByIndex(cfg, currentIndex))) {
1721		if (!entry->skip) {
1722		if (trueIndex == cfg->defaultImage) {
1723		break;
1724		}
1725		trueIndex++;
1726		}
1727		currentIndex++;
1728		}
1729		line = getLineByType(LT_MENUENTRY, entry->lines);
1730		if (!line)
1731		line = getLineByType(LT_TITLE, entry->lines);
1732		if (line) {
1733		title = extractTitle(cfg, line);
1734		if (title)
1735		cfg->cfi->setEnv(cfg->cfi,
1736		"saved_entry", title);
1737		}
1738		}
1739		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1740		if (cfg->cfi->defaultIsIndex) {
1741		if (cfg->cfi->defaultIsVariable) {
1742		fprintf(out, "%sset default=\"%d\"\n", indent,
1743		cfg->defaultImage);
1744		} else {
1745		fprintf(out, "%sdefault%s%d\n", indent,
1746		separator, cfg->defaultImage);
1747		}
1748		} else {
1749		int image = cfg->defaultImage;
1750
1751		entry = cfg->entries;
1752		while (entry && entry->skip)
1753		entry = entry->next;
1754
1755		i = 0;
1756		while (entry && i < image) {
1757		entry = entry->next;
1758
1759		while (entry && entry->skip)
1760		entry = entry->next;
1761		i++;
1762		}
1763
1764		if (!entry)
1765		return;
1766
1767		line = getLineByType(LT_TITLE, entry->lines);
1768
1769		if (line && line->numElements >= 2)
1770		fprintf(out, "%sdefault%s%s\n", indent,
1771		separator, line->elements[1].item);
1772		else if (line && (line->numElements == 1)
1773		&& cfg->cfi->titleBracketed) {
1774		char *title = extractTitle(cfg, line);
1775		if (title) {
1776		fprintf(out, "%sdefault%s%s\n", indent,
1777		separator, title);
1778		free(title);
1779		}
1780		}
1781		}
1782		}
1783		}
1784
1785		static int writeConfig(struct grubConfig *cfg, char *outName,
1786		const char *prefix)
1787		{
1788		FILE *out;
1789		struct singleLine *line;
1790		struct singleEntry *entry;
1791		char *tmpOutName;
1792		int needs = MAIN_DEFAULT;
1793		struct stat sb;
1794		int i;
1795
1796		if (!strcmp(outName, "-")) {
1797		out = stdout;
1798		tmpOutName = NULL;
1799		} else {
1800		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1801		char *buf;
1802		int len = 256;
1803		int rc;
1804
1805		/* most likely the symlink is relative, so change our
1806		directory to the dir of the symlink */
1807		char *dir = strdupa(outName);
1808		rc = chdir(dirname(dir));
1809		do {
1810		buf = alloca(len + 1);
1811		rc = readlink(basename(outName), buf, len);
1812		if (rc == len)
1813		len += 256;
1814		} while (rc == len);
1815
1816		if (rc < 0) {
1817		fprintf(stderr,
1818		_
1819		("grubby: error readlink link %s: %s\n"),
1820		outName, strerror(errno));
1821		return 1;
1822		}
1823
1824		outName = buf;
1825		outName[rc] = '\0';
1826		}
1827
1828		tmpOutName = alloca(strlen(outName) + 2);
1829		sprintf(tmpOutName, "%s-", outName);
1830		out = fopen(tmpOutName, "w");
1831		if (!out) {
1832		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1833		tmpOutName, strerror(errno));
1834		return 1;
1835		}
1836
1837		if (!stat(outName, &sb)) {
1838		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1839		fprintf(stderr,
1840		_
1841		("grubby: error setting perms on %s: %s\n"),
1842		tmpOutName, strerror(errno));
1843		fclose(out);
1844		unlink(tmpOutName);
1845		return 1;
1846		}
1847		}
1848		}
1849
1850		line = cfg->theLines;
1851		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1852		while (line) {
1853		if (line->type == LT_SET_VARIABLE && defaultKw &&
1854		line->numElements == 3 &&
1855		!strcmp(line->elements[1].item, defaultKw->key) &&
1856		!is_special_grub2_variable(line->elements[2].item)) {
1857		writeDefault(out, line->indent,
1858		line->elements[0].indent, cfg);
1859		needs &= ~MAIN_DEFAULT;
1860		} else if (line->type == LT_DEFAULT) {
1861		writeDefault(out, line->indent,
1862		line->elements[0].indent, cfg);
1863		needs &= ~MAIN_DEFAULT;
1864		} else if (line->type == LT_FALLBACK) {
1865		if (cfg->fallbackImage > -1)
1866		fprintf(out, "%s%s%s%d\n", line->indent,
1867		line->elements[0].item,
1868		line->elements[0].indent,
1869		cfg->fallbackImage);
1870		} else {
1871		if (lineWrite(out, line, cfg->cfi) == -1) {
1872		fprintf(stderr,
1873		_("grubby: error writing %s: %s\n"),
1874		tmpOutName, strerror(errno));
1875		fclose(out);
1876		unlink(tmpOutName);
1877		return 1;
1878		}
1879		}
1880
1881		line = line->next;
1882		}
1883
1884		if (needs & MAIN_DEFAULT) {
1885		writeDefault(out, cfg->primaryIndent, "=", cfg);
1886		needs &= ~MAIN_DEFAULT;
1887		}
1888
1889		i = 0;
1890		while ((entry = findEntryByIndex(cfg, i++))) {
1891		if (entry->skip)
1892		continue;
1893
1894		line = entry->lines;
1895		while (line) {
1896		if (lineWrite(out, line, cfg->cfi) == -1) {
1897		fprintf(stderr,
1898		_("grubby: error writing %s: %s\n"),
1899		tmpOutName, strerror(errno));
1900		fclose(out);
1901		unlink(tmpOutName);
1902		return 1;
1903		}
1904		line = line->next;
1905		}
1906		}
1907
1908		if (tmpOutName) {
1909		if (rename(tmpOutName, outName)) {
1910		fprintf(stderr,
1911		_("grubby: error moving %s to %s: %s\n"),
1912		tmpOutName, outName, strerror(errno));
1913		unlink(outName);
1914		return 1;
1915		}
1916		}
1917
1918		return 0;
1919		}
1920
1921		static int numEntries(struct grubConfig *cfg)
1922		{
1923		int i = 0;
1924		struct singleEntry *entry;
1925
1926		entry = cfg->entries;
1927		while (entry) {
1928		if (!entry->skip)
1929		i++;
1930		entry = entry->next;
1931		}
1932		return i;
1933	}	}
1934
1935	static char *findDiskForRoot()	static char *findDiskForRoot()
1936	{	{
1937	int fd;	int fd;
1938	char buf[65536];	char buf[65536];
1939	char *devname;	char *devname;
1940	char *chptr;	char *chptr;
1941	int rc;	int rc;
1942
1943		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1944		fprintf(stderr, "grubby: failed to open %s: %s\n",
1945		_PATH_MOUNTED, strerror(errno));
1946		return NULL;
1947		}
1948
1949		rc = read(fd, buf, sizeof(buf) - 1);
1950		if (rc <= 0) {
1951		fprintf(stderr, "grubby: failed to read %s: %s\n",
1952		_PATH_MOUNTED, strerror(errno));
1953		close(fd);
1954		return NULL;
1955		}
1956		close(fd);
1957		buf[rc] = '\0';
1958		chptr = buf;
1959
1960	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	char *foundanswer = NULL;
	fprintf(stderr, "grubby: failed to open %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
1961
1962	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1963	if (rc <= 0) {	devname = chptr;
	fprintf(stderr, "grubby: failed to read %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	close(fd);
	return NULL;
	}
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	char *foundanswer = NULL;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/* remember the last / entry in mtab */
	foundanswer = devname;
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1964
1965	/* Return the last / entry found */	/*
1966	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1967	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1968	*chptr = '\0';	* on to the next line.
1969	return strdup(foundanswer);	*/
1970	}	if (*devname != '/') {
1971		chptr = strchr(chptr, '\n');
1972		if (chptr)
1973		chptr++;
1974		continue;
1975		}
1976
1977		/* Seek to the next space */
1978		chptr = strchr(chptr, ' ');
1979		if (!chptr) {
1980		fprintf(stderr, "grubby: error parsing %s: %s\n",
1981		_PATH_MOUNTED, strerror(errno));
1982		return NULL;
1983		}
1984
1985		/*
1986		* The second column of a mtab entry is the mount point, we
1987		* are looking for '/' obviously.
1988		*/
1989		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1990		/* remember the last / entry in mtab */
1991		foundanswer = devname;
1992		}
1993
1994		/* Next line */
1995		chptr = strchr(chptr, '\n');
1996		if (chptr)
1997		chptr++;
1998		}
1999
2000		/* Return the last / entry found */
2001		if (foundanswer) {
2002		chptr = strchr(foundanswer, ' ');
2003		*chptr = '\0';
2004		return strdup(foundanswer);
2005		}
2006
2007	return NULL;	return NULL;
2008	}	}
2009
2010	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
2011	int i;	{
2012	struct singleLine * line;	int i;
2013		struct singleLine *line;
2014
2015	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
2016	fprintf(stderr, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
2017	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
2018	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
2019	* menuentry when read it. */	* menuentry when read it. */
2020	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2021	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2022	fprintf(stderr, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2023	else	line->elements[i].item);
2024	fprintf(stderr, "%s", line->elements[i].item);	else
2025	fprintf(stderr, "%s", line->elements[i].indent);	log_message(f, "%s",
2026		line->elements[i].item);
2027	continue;	log_message(f, "%s", line->elements[i].indent);
2028	}
2029		continue;
2030	fprintf(stderr, "%s%s",	}
2031	line->elements[i].item, line->elements[i].indent);
2032		log_message(f, "%s%s",
2033		line->elements[i].item,
2034		line->elements[i].indent);
2035		}
2036		log_message(f, "\n");
2037	}	}
	fprintf(stderr, "\n");
	}
2038	}	}
2039
2040	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2041		...)
2042	{	{
2043	va_list argp;	static int once;
2044		va_list argp, argq;
2045
2046	if (!debug)	va_start(argp, fmt);
	return;
2047
2048	va_start(argp, fmt);	va_copy(argq, argp);
2049	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2050	vfprintf(stderr, fmt, argp);	log_time(NULL);
2051	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2052	va_end(argp);	}
2053		log_message(NULL, "DBG: Image entry %s: ",
2054		okay ? "succeeded" : "failed");
2055		log_vmessage(NULL, fmt, argq);
2056
2057		printEntry(entry, NULL);
2058		va_end(argq);
2059
2060		if (!debug) {
2061		once = 1;
2062		va_end(argp);
2063		return;
2064		}
2065
2066		if (okay) {
2067		va_end(argp);
2068		return;
2069		}
2070
2071		if (!once)
2072		log_message(stderr, "DBG: command line: %s\n",
2073		saved_command_line);
2074		once = 1;
2075		fprintf(stderr, "DBG: Image entry failed: ");
2076		vfprintf(stderr, fmt, argp);
2077		printEntry(entry, stderr);
2078		va_end(argp);
2079	}	}
2080
2081	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1550  static int endswith(const char *s, char	Line 2091  static int endswith(const char *s, char
2091	return s[slen] == c;	return s[slen] == c;
2092	}	}
2093
2094	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2095	int skipRemoved, int flags) {	int skipRemoved, int flags)
2096	struct singleLine * line;	{
2097	char * fullName;	struct singleLine *line;
2098	int i;	char *fullName;
2099	char * dev;	int i;
2100	char * rootspec;	char *dev;
2101	char * rootdev;	char *rootspec;
2102		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2103
2104	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2105	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2106	notSuitablePrintf(entry, "no line found\n");	return 0;
2107	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2108
2109	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2110		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2111		entry->lines);
2112		if (!line) {
2113		notSuitablePrintf(entry, 0, "no line found\n");
2114		return 0;
2115		}
2116		if (line->numElements < 2) {
2117		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2118		line->numElements);
2119		return 0;
2120		}
2121
2122	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2123	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2124	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2125	int rootspec_offset = rootspec ? strlen(rootspec) : 0;	}
	int hasslash = endswith(bootPrefix, '/') ||
	beginswith(line->elements[1].item + rootspec_offset, '/');
	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
	line->elements[1].item + rootspec_offset);
	if (access(fullName, R_OK)) {
	notSuitablePrintf(entry, "access to %s failed\n", fullName);
	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);
2126
2127	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2128	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2129		rootspec = getRootSpecifier(line->elements[1].item);
2130		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2131		int hasslash = endswith(bootPrefix, '/') ||
2132		beginswith(line->elements[1].item + rootspec_offset, '/');
2133		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2134		line->elements[1].item + rootspec_offset);
2135		if (access(fullName, R_OK)) {
2136		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2137		return 0;
2138		}
2139		for (i = 2; i < line->numElements; i++)
2140		if (!strncasecmp(line->elements[i].item, "root=", 5))
2141		break;
2142		if (i < line->numElements) {
2143		dev = line->elements[i].item + 5;
2144	} else {	} else {
2145	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2146	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2147	*/
2148	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2149		dev = line->elements[1].item;
2150	/* failed to find one */	} else {
2151	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2152	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2153	return 0;	* for the args, so check that too.
2154	}	*/
2155		line =
2156	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2157	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2158	if (i < line->numElements)
2159	dev = line->elements[i].item + 5;	/* failed to find one */
2160	else {	if (!line) {
2161	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2162	/* it failed too...  can't find root= */	return 0;
2163	return 0;	}
2164	}
2165		for (i = 1; i < line->numElements; i++)
2166		if (!strncasecmp
2167		(line->elements[i].item, "root=", 5))
2168		break;
2169		if (i < line->numElements)
2170		dev = line->elements[i].item + 5;
2171		else {
2172		notSuitablePrintf(entry, 0,
2173		"no root= entry found\n");
2174		/* it failed too...  can't find root= */
2175		return 0;
2176		}
2177		}
2178	}	}
	}
2179
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2180	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2181		if (!getpathbyspec(dev)) {
2182		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2183		dev);
2184		return 0;
2185		} else
2186		dev = getpathbyspec(dev);
2187
2188	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2189	if (!rootdev) {	if (!rootdev) {
2190	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2191	return 0;	return 0;
2192	}	}
2193
2194	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2195	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2196	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2197	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2198	return 0;	free(rootdev);
2199	}	return 0;
2200		}
2201
2202	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2203	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2204	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2205	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2206	return 0;	free(rootdev);
2207	}	return 0;
2208		}
2209
2210	free(rootdev);	free(rootdev);
2211		notSuitablePrintf(entry, 1, "\n");
2212
2213	return 1;	return 1;
2214	}	}
2215
2216	/* returns the first match on or after the one pointed to by index (if index	/* returns the first match on or after the one pointed to by index (if index
2217	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2218	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2219	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2220	int * index) {	int *index)
2221	struct singleEntry * entry = NULL;	{
2222	struct singleLine * line;	struct singleEntry *entry = NULL;
2223	int i;	struct singleLine *line;
2224	char * chptr;	int i;
2225	char * rootspec = NULL;	char *chptr;
2226	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2227		enum lineType_e checkType = LT_KERNEL;
2228
2229		if (isdigit(*kernel)) {
2230		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2231
2232		i = 0;
2233		indexVars[i] = strtol(kernel, &chptr, 10);
2234		while (*chptr == ',') {
2235		i++;
2236		kernel = chptr + 1;
2237		indexVars[i] = strtol(kernel, &chptr, 10);
2238		}
2239
2240	if (isdigit(*kernel)) {	if (*chptr) {
2241	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	/* can't parse it, bail */
2242		return NULL;
2243		}
2244
2245	i = 0;	indexVars[i + 1] = -1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	while (*chptr == ',') {
	i++;
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2246
2247	if (*chptr) {	i = 0;
2248	/* can't parse it, bail */	if (index) {
2249	return NULL;	while (i < *index) {
2250	}	i++;
2251		if (indexVars[i] == -1)
2252		return NULL;
2253		}
2254		}
2255
2256	indexVars[i + 1] = -1;	entry = findEntryByIndex(config, indexVars[i]);
2257		if (!entry)
2258	i = 0;	return NULL;
2259	if (index) {
2260	while (i < *index) i++;	line =
2261	if (indexVars[i] == -1) return NULL;	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2262	}	LT_KERNEL_16, entry->lines);
2263		if (!line)
2264		return NULL;
2265
2266		if (index)
2267		*index = indexVars[i];
2268		return entry;
2269		}
2270
2271		if (!strcmp(kernel, "DEFAULT")) {
2272		if (index && *index > config->defaultImage) {
2273		entry = NULL;
2274		} else {
2275		entry = findEntryByIndex(config, config->defaultImage);
2276		if (entry && entry->skip)
2277		entry = NULL;
2278		else if (index)
2279		*index = config->defaultImage;
2280		}
2281		} else if (!strcmp(kernel, "ALL")) {
2282		if (index)
2283		i = *index;
2284		else
2285		i = 0;
2286
2287		while ((entry = findEntryByIndex(config, i))) {
2288		if (!entry->skip)
2289		break;
2290		i++;
2291		}
2292
2293	entry = findEntryByIndex(config, indexVars[i]);	if (entry && index)
2294	if (!entry) return NULL;	*index = i;
2295		} else {
2296		if (index)
2297		i = *index;
2298		else
2299		i = 0;
2300
2301	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (!strncmp(kernel, "TITLE=", 6)) {
2302	if (!line) return NULL;	prefix = "";
2303		checkType = LT_TITLE | LT_MENUENTRY;
2304		kernel += 6;
2305		}
2306
2307	if (index) *index = indexVars[i];	for (entry = findEntryByIndex(config, i); entry;
2308	return entry;	entry = entry->next, i++) {
2309	}	if (entry->skip)
2310		continue;
2311	if (!strcmp(kernel, "DEFAULT")) {
2312	if (index && *index > config->defaultImage) {	dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2313	entry = NULL;	checkType, kernel, entry);
2314	} else {
2315	entry = findEntryByIndex(config, config->defaultImage);	/* check all the lines matching checkType */
2316	if (entry && entry->skip)	for (line = entry->lines; line; line = line->next) {
2317	entry = NULL;	enum lineType_e ct = checkType;
2318	else if (index)	if (entry->multiboot && checkType == LT_KERNEL)
2319	*index = config->defaultImage;	ct = LT_KERNEL | LT_KERNEL_EFI |
2320	}	LT_MBMODULE | LT_HYPER |
2321	} else if (!strcmp(kernel, "ALL")) {	LT_KERNEL_16;
2322	if (index)	else if (checkType & LT_KERNEL)
2323	i = *index;	ct = checkType | LT_KERNEL_EFI |
2324	else	LT_KERNEL_16;
2325	i = 0;	line = getLineByType(ct, line);
2326		if (!line)
2327		break; /* not found in this entry */
2328
2329		if (line && line->type != LT_MENUENTRY &&
2330		line->numElements >= 2) {
2331		rootspec =
2332		getRootSpecifier(line->elements[1].
2333		item);
2334		if (!strcmp
2335		(line->elements[1].item +
2336		((rootspec !=
2337		NULL) ? strlen(rootspec) : 0),
2338		kernel + strlen(prefix)))
2339		break;
2340		}
2341		if (line->type == LT_MENUENTRY &&
2342		!strcmp(line->elements[1].item, kernel))
2343		break;
2344		}
2345
2346	while ((entry = findEntryByIndex(config, i))) {	/* make sure this entry has a kernel identifier; this skips
2347	if (!entry->skip) break;	* non-Linux boot entries (could find netbsd etc, though, which is
2348	i++;	* unfortunate)
2349		*/
2350		if (line
2351		&& getLineByType(LT_KERNEL | LT_HYPER |
2352		LT_KERNEL_EFI | LT_KERNEL_16,
2353		entry->lines))
2354		break; /* found 'im! */
2355		}
2356
2357		if (index)
2358		*index = i;
2359	}	}
2360
2361	if (entry && index)	return entry;
2362	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2363
2364	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2365	prefix = "";	int *index)
2366	checkType = LT_TITLE|LT_MENUENTRY;	{
2367	kernel += 6;	struct singleEntry *entry;
2368	}	struct singleLine *line;
2369		int i;
2370	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2371	if (entry->skip) continue;
2372		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2373	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2374		continue;
2375	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
2376	for (line = entry->lines; line; line = line->next) {	if (!line)
2377	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	line = getLineByType(LT_MENUENTRY, entry->lines);
2378	LT_KERNEL|LT_MBMODULE|LT_HYPER :	if (!line)
2379	checkType, line);	continue;
2380	if (!line) break;  /* not found in this entry */	newtitle = grub2ExtractTitle(line);
2381		if (!newtitle)
2382	if (line && line->type != LT_MENUENTRY &&	continue;
2383	line->numElements >= 2) {	if (!strcmp(title, newtitle))
	rootspec = getRootSpecifier(line->elements[1].item);
	if (!strcmp(line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0),
	kernel + strlen(prefix)))
2384	break;	break;
	}
	if(line->type == LT_MENUENTRY &&
	!strcmp(line->elements[1].item, kernel))
	break;
	}
	/* make sure this entry has a kernel identifier; this skips
	* non-Linux boot entries (could find netbsd etc, though, which is
	* unfortunate)
	*/
	if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines))
	break; /* found 'im! */
2385	}	}
2386
2387	if (index) *index = i;	if (!entry)
2388	}	return NULL;
2389
2390	return entry;	if (index)
2391		*index = i;
2392		return entry;
2393	}	}
2394
2395	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2396	struct singleEntry * entry;	{
2397		struct singleEntry *entry;
2398
2399	entry = cfg->entries;	entry = cfg->entries;
2400	while (index && entry) {	while (index && entry) {
2401	entry = entry->next;	entry = entry->next;
2402	index--;	index--;
2403	}	}
2404
2405	return entry;	return entry;
2406	}	}
2407
2408	/* Find a good template to use for the new kernel. An entry is	/* Find a good template to use for the new kernel. An entry is
#	Line 1792  struct singleEntry * findEntryByIndex(st	Line 2410  struct singleEntry * findEntryByIndex(st
2410	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2411	* if that doesn't work just take the first. If we can't find one,	* if that doesn't work just take the first. If we can't find one,
2412	* bail. */	* bail. */
2413	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2414	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2415	struct singleEntry * entry, * entry2;	{
2416	int index;	struct singleEntry *entry, *entry2;
2417		int index;
2418	if (cfg->defaultImage > -1) {
2419	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2420	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2421	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2422	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2423		if (defTitle) {
2424		int index = 0;
2425		if (isnumber(defTitle)) {
2426		index = atoi(defTitle);
2427		entry = findEntryByIndex(cfg, index);
2428		} else {
2429		entry =
2430		findEntryByTitle(cfg, defTitle,
2431		&index);
2432		}
2433		if (entry
2434		&& suitableImage(entry, prefix, skipRemoved,
2435		flags)) {
2436		cfg->defaultImage = index;
2437		if (indexPtr)
2438		*indexPtr = index;
2439		return entry;
2440		}
2441		}
2442		}
2443		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2444		entry = findEntryByIndex(cfg, cfg->defaultImage);
2445		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2446		if (indexPtr)
2447		*indexPtr = cfg->defaultImage;
2448		return entry;
2449		}
2450	}	}
	}
2451
2452	index = 0;	index = 0;
2453	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2454	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2455	int j;	int j, unmodifiedIndex;
2456	for (j = 0; j < index; j++) {
2457	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2458	if (entry2->skip) index--;
2459	}	for (j = 0; j < unmodifiedIndex; j++) {
2460	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2461		if (entry2->skip)
2462		index--;
2463		}
2464		if (indexPtr)
2465		*indexPtr = index;
2466
2467	return entry;	return entry;
2468	}	}
2469
2470	index++;	index++;
2471	}	}
2472
2473	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2474		_("grubby fatal error: unable to find a suitable template\n"));
2475
2476	return NULL;	return NULL;
2477	}	}
2478
2479	char * findBootPrefix(void) {	char *findBootPrefix(void)
2480	struct stat sb, sb2;	{
2481		struct stat sb, sb2;
2482
2483	stat("/", &sb);	stat("/", &sb);
2484	#ifdef __ia64__	#ifdef __ia64__
2485	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2486	#else	#else
2487	stat("/boot", &sb2);	stat("/boot", &sb2);
2488	#endif	#endif
2489
2490	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2491	return strdup("");	return strdup("");
2492
2493	#ifdef __ia64__	#ifdef __ia64__
2494	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2495	#else	#else
2496	return strdup("/boot");	return strdup("/boot");
2497	#endif	#endif
2498	}	}
2499
2500	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2501	const char * prefix) {	const char *prefix)
2502	struct singleEntry * entry;	{
2503		struct singleEntry *entry;
	if (!image)
	return;
	/* check and see if we're removing the default image */
	if (isdigit(*image)) {
	entry = findEntryByPath(cfg, image, prefix, NULL);
	if(entry)
	entry->skip = 1;
	return;
	}
2504
2505	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2506	entry->skip = 1;	return;
	}
2507
2508	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2509	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2510	const char * prefix, int flags) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2511	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2512	int i, j;	entry->skip = 1;
2513		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2514	}	}
	}
	/* defaultImage now points to what we'd like to use, but before any order
	changes */
	if ((config->defaultImage == DEFAULT_SAVED) ||
	(config->defaultImage == DEFAULT_SAVED_GRUB2))
	/* 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;
2515
2516	if (entry && !entry->skip) {	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2517	/* we can preserve the default */	entry->skip = 1;
	if (hasNew)
	config->defaultImage++;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->defaultImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->defaultImage--;
	}
	} else if (hasNew) {
	config->defaultImage = 0;
	} else {
	/* Either we just erased the default (or the default line was bad
	* to begin with) and didn't put a new one in. We'll use the first
	* valid image. */
	newDefault = findTemplate(config, prefix, &config->defaultImage, 1,
	flags);
	if (!newDefault)
	config->defaultImage = -1;
	}
2518	}	}
2519
2520	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2521	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2522	int j;	const char *prefix, int flags,
2523		int newDefaultBootEntryIndex, int newBootEntryIndex)
2524	if (config->fallbackImage == -1) return;	{
2525		struct singleEntry *bootEntry, *newDefault;
2526	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2527
2528	if (hasNew)	/* initialize */
2529	config->fallbackImage++;	currentLookupIndex = FIRST_ENTRY_INDEX;
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2530
2531	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* handle the two cases where the user explictly picks the default
2532	struct singleLine * line;	* boot entry index as it would exist post-modification */
	char * root = NULL;
	int i;
	printf("index=%d\n", index);
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2533
2534	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	/* Case 1: user chose to make the latest boot entry the default */
2535	printf("kernel=%s\n", line->elements[1].item);	if (newBootEntryIsDefault) {
2536	else	config->defaultImage = newBootEntryIndex;
2537	printf("kernel=%s%s\n", prefix, line->elements[1].item);	return;
2538		}
2539	if (line->numElements >= 3) {
2540	printf("args=\"");	/* Case 2: user picked an arbitrary index as the default boot entry */
2541	i = 2;	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2542	while (i < line->numElements) {	&& config->cfi->defaultIsIndex) {
2543	if (!strncmp(line->elements[i].item, "root=", 5)) {	indexToVerify = newDefaultBootEntryIndex;
2544	root = line->elements[i].item + 5;
2545	} else {	/* user chose to make latest boot entry the default */
2546	printf("%s%s", line->elements[i].item,	if (newDefaultBootEntryIndex == newBootEntryIndex) {
2547	line->elements[i].indent);	config->defaultImage = newBootEntryIndex;
2548	}	return;
2549		}
2550
2551	i++;	/* the user picks the default index based on the
2552	}	* order of the bootloader configuration after
2553	printf("\"\n");	* modification; ensure we are checking for the
2554	} else {	* existence of the correct entry */
2555	line = getLineByType(LT_KERNELARGS, entry->lines);	if (newBootEntryIndex < newDefaultBootEntryIndex) {
2556	if (line) {	if (!config->isModified)
2557	char * s;	indexToVerify--;
2558		}
2559
2560	printf("args=\"");	/* verify the user selected index will exist */
2561	i = 1;	if (findEntryByIndex(config, indexToVerify)) {
2562	while (i < line->numElements) {	config->defaultImage = newDefaultBootEntryIndex;
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
2563	} else {	} else {
2564	s = line->elements[i].item;	config->defaultImage = NO_DEFAULT_ENTRY;
	printf("%s%s", s, line->elements[i].indent);
2565	}	}
2566
2567	i++;	return;
	}
	s = line->elements[i - 1].indent;
	printf("\"\n");
2568	}	}
	}
	if (!root) {
	line = getLineByType(LT_ROOT, entry->lines);
	if (line && line->numElements >= 2)
	root=line->elements[1].item;
	}
2569
2570	if (root) {	/* handle cases where the index value may shift */
	char * s = alloca(strlen(root) + 1);
	strcpy(s, root);
	if (s[strlen(s) - 1] == '"')
	s[strlen(s) - 1] = '\0';
	/* make sure the root doesn't have a trailing " */
	printf("root=%s\n", s);
	}
2571
2572	line = getLineByType(LT_INITRD, entry->lines);	/* check validity of existing default or first-entry-found
2573		selection */
2574		if (defaultKernelPath) {
2575		/* we must initialize this */
2576		firstKernelEntryIndex = 0;
2577		/* user requested first-entry-found */
2578		if (!findEntryByPath(config, defaultKernelPath,
2579		prefix, &firstKernelEntryIndex)) {
2580		/* don't change default if can't find match */
2581		config->defaultImage = NO_DEFAULT_ENTRY;
2582		return;
2583		}
2584
2585	if (line && line->numElements >= 2) {	config->defaultImage = firstKernelEntryIndex;
	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
	printf("initrd=");
	else
	printf("initrd=%s", prefix);
2586
2587	for (i = 1; i < line->numElements; i++)	/* this is where we start looking for decrement later */
2588	printf("%s%s", line->elements[i].item, line->elements[i].indent);	currentLookupIndex = config->defaultImage;
	printf("\n");
	}
2589
2590	line = getLineByType(LT_TITLE, entry->lines);	if (isAddingBootEntry && !config->isModified &&
2591	if (line) {	(newBootEntryIndex < config->defaultImage)) {
2592	printf("title=%s\n", line->elements[1].item);	/* increment because new entry added before default */
2593	} else {	config->defaultImage++;
2594	char * title;	}
2595	line = getLineByType(LT_MENUENTRY, entry->lines);	} else {
2596	title = grub2ExtractTitle(line);	/* check to see if the default is stored in the environment */
2597	if (title)	if (config->defaultImage < FIRST_ENTRY_INDEX) {
2598	printf("title=%s\n", title);	if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2)
2599	}	{
2600	}	if (config->cfi->defaultIsSaved) {
2601		if (config->cfi->getEnv) {
2602		char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry");
2603
2604		if (defaultTitle) {
2605		if (isnumber(defaultTitle)) {
2606		currentLookupIndex = atoi(defaultTitle);
2607		} else {
2608		findEntryByTitle(config, defaultTitle, &currentLookupIndex);
2609		}
2610		/* set the default Image to an actual index */
2611		config->defaultImage = currentLookupIndex;
2612		}
2613		}
2614		}
2615		}
2616		} else {
2617		/* use pre-existing default entry from the file*/
2618		currentLookupIndex = config->defaultImage;
2619		}
2620
2621	int isSuseSystem(void) {	if (isAddingBootEntry
2622	const char * path;	&& (newBootEntryIndex <= config->defaultImage)) {
2623	const static char default_path[] = "/etc/SuSE-release";	config->defaultImage++;
2624
2625	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	if (config->isModified) {
2626	path = default_path;	currentLookupIndex++;
2627		}
2628		}
2629		}
2630
2631	if (!access(path, R_OK))	/* sanity check - is this entry index valid? */
2632	return 1;	bootEntry = findEntryByIndex(config, currentLookupIndex);
	return 0;
	}
2633
2634	int isSuseGrubConf(const char * path) {	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2635	FILE * grubConf;	/* entry is to be skipped or is invalid */
2636	char * line = NULL;	if (isAddingBootEntry) {
2637	size_t len = 0, res = 0;	config->defaultImage = newBootEntryIndex;
2638		return;
2639	grubConf = fopen(path, "r");	}
2640	if (!grubConf) {	newDefault =
2641	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	findTemplate(config, prefix, &config->defaultImage, 1,
2642	return 0;	flags);
2643	}	if (!newDefault) {
2644		config->defaultImage = NO_DEFAULT_ENTRY;
2645		}
2646
2647	while ((res = getline(&line, &len, grubConf)) != -1) {	return;
	if (!strncmp(line, "setup", 5)) {
	fclose(grubConf);
	free(line);
	return 1;
2648	}	}
	}
2649
2650	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	currentLookupIndex--;
	path);
2651
2652	fclose(grubConf);	/* decrement index by the total number of entries deleted */
	free(line);
	return 0;
	}
2653
2654	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (indexToVerify = currentLookupIndex;
2655	FILE * grubConf;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	char * line = NULL;
	size_t res = 0, len = 0;
	if (!path) return 1;
	if (!lbaPtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
	}
2656
2657	if (!strncmp(line, "setup", 5)) {	bootEntry = findEntryByIndex(config, indexToVerify);
	if (strstr(line, "--force-lba")) {
	*lbaPtr = 1;
	} else {
	*lbaPtr = 0;
	}
	dbgPrintf("lba: %i\n", *lbaPtr);
	break;
	}
	}
2658
2659	free(line);	if (bootEntry && bootEntry->skip) {
2660	fclose(grubConf);	config->defaultImage--;
2661	return 0;	}
2662		}
2663	}	}
2664
2665	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	void setFallbackImage(struct grubConfig *config, int hasNew)
2666	FILE * grubConf;	{
2667	char * line = NULL;	struct singleEntry *entry, *entry2;
2668	size_t res = 0, len = 0;	int j;
	char * lastParamPtr = NULL;
	char * secLastParamPtr = NULL;
	char installDeviceNumber = '\0';
	char * bounds = NULL;
	if (!path) return 1;
	if (!devicePtr) return 1;
	grubConf = fopen(path, "r");
	if (!grubConf) return 1;
	while ((res = getline(&line, &len, grubConf)) != -1) {
	if (strncmp(line, "setup", 5))
	continue;
	if (line[res - 1] == '\n')
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
	}
2669
2670	lastParamPtr = bounds = line + res;	if (config->fallbackImage == -1)
2671		return;
2672
2673	/* Last parameter in grub may be an optional IMAGE_DEVICE */	entry = findEntryByIndex(config, config->fallbackImage);
2674	while (!isspace(*lastParamPtr))	if (!entry || entry->skip) {
2675	lastParamPtr--;	config->fallbackImage = -1;
2676	lastParamPtr++;	return;
2677		}
2678
2679	secLastParamPtr = lastParamPtr - 2;	if (hasNew)
2680	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);	config->fallbackImage++;
2681
2682	if (lastParamPtr + 3 > bounds) {	/* count the number of entries erased before this one */
2683	dbgPrintf("lastParamPtr going over boundary");	for (j = 0; j < config->fallbackImage; j++) {
2684	fclose(grubConf);	entry2 = findEntryByIndex(config, j);
2685	free(line);	if (entry2->skip)
2686	return 1;	config->fallbackImage--;
2687	}	}
2688	if (!strncmp(lastParamPtr, "(hd", 3))	}
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2689
2690	/*	void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index)
2691	* Second last parameter will decide wether last parameter is	{
2692	* an IMAGE_DEVICE or INSTALL_DEVICE	struct singleLine *line;
2693	*/	char *root = NULL;
2694	while (!isspace(*secLastParamPtr))	int i;
2695	secLastParamPtr--;	int j;
	secLastParamPtr++;
	if (secLastParamPtr + 3 > bounds) {
	dbgPrintf("secLastParamPtr going over boundary");
	fclose(grubConf);
	free(line);
	return 1;
	}
	dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
	if (!strncmp(secLastParamPtr, "(hd", 3)) {
	secLastParamPtr += 3;
	dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
	installDeviceNumber = *secLastParamPtr;
	} else {
	installDeviceNumber = *lastParamPtr;
	}
	*devicePtr = malloc(6);
	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
	fclose(grubConf);
	free(line);
	return 0;
	}
2696
2697	free(line);	printf("index=%d\n", index);
	fclose(grubConf);
	return 1;
	}
	int grubGetBootFromDeviceMap(const char * device,
	char ** bootPtr) {
	FILE * deviceMap;
	char * line = NULL;
	size_t res = 0, len = 0;
	char * devicePtr;
	char * bounds = NULL;
	const char * path;
	const static char default_path[] = "/boot/grub/device.map";
	if (!device) return 1;
	if (!bootPtr) return 1;
	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
	path = default_path;
	dbgPrintf("opening grub device.map file from: %s\n", path);
	deviceMap = fopen(path, "r");
	if (!deviceMap)
	return 1;
2698
2699	while ((res = getline(&line, &len, deviceMap)) != -1) {	line =
2700	if (!strncmp(line, "#", 1))	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2701	continue;	entry->lines);
2702		if (!line) {
2703	if (line[res - 1] == '\n')	printf("non linux entry\n");
2704	line[res - 1] = '\0';	return;
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
2705	}	}
2706
2707	devicePtr = line;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2708	bounds = line + res;	printf("kernel=%s\n", line->elements[1].item);
2709		else
2710		printf("kernel=%s%s\n", prefix, line->elements[1].item);
2711
2712		if (line->numElements >= 3) {
2713		printf("args=\"");
2714		i = 2;
2715		while (i < line->numElements) {
2716		if (!strncmp(line->elements[i].item, "root=", 5)) {
2717		root = line->elements[i].item + 5;
2718		} else {
2719		printf("%s%s", line->elements[i].item,
2720		line->elements[i].indent);
2721		}
2722
2723		i++;
2724		}
2725		printf("\"\n");
2726		} else {
2727		line = getLineByType(LT_KERNELARGS, entry->lines);
2728		if (line) {
2729		char *s;
2730
2731		printf("args=\"");
2732		i = 1;
2733		while (i < line->numElements) {
2734		if (!strncmp
2735		(line->elements[i].item, "root=", 5)) {
2736		root = line->elements[i].item + 5;
2737		} else {
2738		s = line->elements[i].item;
2739
2740	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	printf("%s%s", s,
2741	devicePtr++;	line->elements[i].indent);
2742	dbgPrintf("device: %s\n", devicePtr);	}
2743
2744		i++;
2745		}
2746
2747	if (!strncmp(devicePtr, device, strlen(device))) {	s = line->elements[i - 1].indent;
2748	devicePtr += strlen(device);	printf("\"\n");
2749	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	}
2750	devicePtr++;	}
2751
2752	*bootPtr = strdup(devicePtr);	if (!root) {
2753	break;	line = getLineByType(LT_ROOT, entry->lines);
2754		if (line && line->numElements >= 2)
2755		root = line->elements[1].item;
2756	}	}
	}
2757
2758	free(line);	if (root) {
2759	fclose(deviceMap);	char *s = alloca(strlen(root) + 1);
	return 0;
	}
2760
2761	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	strcpy(s, root);
2762	char * grubDevice;	if (s[strlen(s) - 1] == '"')
2763		s[strlen(s) - 1] = '\0';
2764		/* make sure the root doesn't have a trailing " */
2765		printf("root=%s\n", s);
2766		}
2767
2768	if (suseGrubConfGetInstallDevice(path, &grubDevice))	line =
2769	dbgPrintf("error looking for grub installation device\n");	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2770	else	entry->lines);
	dbgPrintf("grubby installation device: %s\n", grubDevice);
	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
	dbgPrintf("error looking for grub boot device\n");
	else
	dbgPrintf("grubby boot device: %s\n", *bootPtr);
2771
2772	free(grubDevice);	if (line && line->numElements >= 2) {
2773	return 0;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2774	}	printf("initrd=");
2775		else
2776		printf("initrd=%s", prefix);
2777
2778	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	for (i = 1; i < line->numElements; i++)
2779	/*	printf("%s%s", line->elements[i].item,
2780	* This SuSE grub configuration file at this location is not your average	line->elements[i].indent);
2781	* grub configuration file, but instead the grub commands used to setup	printf("\n");
2782	* grub on that system.	}
	*/
	const char * path;
	const static char default_path[] = "/etc/grub.conf";
	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
	path = default_path;
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2783
2784	if (bootPtr) {	line = getLineByType(LT_TITLE, entry->lines);
2785	*bootPtr = NULL;	if (line) {
2786	suseGrubConfGetBoot(path, bootPtr);	char *entryTitle;
2787	}	/* if we can extractTitle, then it's a zipl config and
2788		* if not then we go ahead with what's existed prior */
2789		entryTitle = extractTitle(config, line);
2790		if (!entryTitle) {
2791		entryTitle=line->elements[1].item;
2792		}
2793		printf("title=%s\n", entryTitle);
2794		} else {
2795		char *title;
2796		line = getLineByType(LT_MENUENTRY, entry->lines);
2797		if (line) {
2798		title = grub2ExtractTitle(line);
2799		if (title)
2800		printf("title=%s\n", title);
2801		}
2802		}
2803
2804	return 0;	for (j = 0, line = entry->lines; line; line = line->next) {
2805		if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2806		if (!strncmp
2807		(prefix, line->elements[1].item, strlen(prefix)))
2808		printf("mbmodule%d=", j);
2809		else
2810		printf("mbmodule%d=%s", j, prefix);
2811
2812		for (i = 1; i < line->numElements; i++)
2813		printf("%s%s", line->elements[i].item,
2814		line->elements[i].indent);
2815		printf("\n");
2816		j++;
2817		}
2818		}
2819	}	}
2820
2821	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int isSuseSystem(void)
2822	FILE * in;	{
2823	char buf[1024];	const char *path;
2824	char * chptr;	const static char default_path[] = "/etc/SuSE-release";
	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);
	}
2825
2826	fclose(in);	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2827		path = default_path;
2828
2829	return 0;	if (!access(path, R_OK))
2830		return 1;
2831		return 0;
2832	}	}
2833
2834	void dumpSysconfigGrub(void) {	int isSuseGrubConf(const char *path)
2835	char * boot = NULL;	{
2836	int lba;	FILE *grubConf;
2837		char *line = NULL;
2838	if (!isSuseSystem()) {	size_t len = 0, res = 0;
2839	if (parseSysconfigGrub(&lba, &boot)) {
2840	free(boot);	grubConf = fopen(path, "r");
2841	return;	if (!grubConf) {
2842	}	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2843	} else {	path);
2844	if (parseSuseGrubConf(&lba, &boot)) {	return 0;
	free(boot);
	return;
2845	}	}
	}
2846
2847	if (lba) printf("lba\n");	while ((res = getline(&line, &len, grubConf)) != -1) {
2848	if (boot) {	if (!strncmp(line, "setup", 5)) {
2849	printf("boot=%s\n", boot);	fclose(grubConf);
2850	free(boot);	free(line);
2851	}	return 1;
2852		}
2853		}
2854
2855		dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2856		path);
2857
2858		fclose(grubConf);
2859		free(line);
2860		return 0;
2861	}	}
2862
2863	int displayInfo(struct grubConfig * config, char * kernel,	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2864	const char * prefix) {	{
2865	int i = 0;	FILE *grubConf;
2866	struct singleEntry * entry;	char *line = NULL;
2867	struct singleLine * line;	size_t res = 0, len = 0;
	entry = findEntryByPath(config, kernel, prefix, &i);
	if (!entry) {
	fprintf(stderr, _("grubby: kernel not found\n"));
	return 1;
	}
2868
2869	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (!path)
2870	be a better way */	return 1;
2871	if (config->cfi == &grubConfigType) {	if (!lbaPtr)
2872	dumpSysconfigGrub();	return 1;
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
	}
2873
2874	line = getLineByType(LT_LBA, config->theLines);	grubConf = fopen(path, "r");
2875	if (line) printf("lba\n");	if (!grubConf)
2876	}	return 1;
2877
2878	displayEntry(entry, prefix, i);	while ((res = getline(&line, &len, grubConf)) != -1) {
2879		if (line[res - 1] == '\n')
2880		line[res - 1] = '\0';
2881		else if (len > res)
2882		line[res] = '\0';
2883		else {
2884		line = realloc(line, res + 1);
2885		line[res] = '\0';
2886		}
2887
2888	i++;	if (!strncmp(line, "setup", 5)) {
2889	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	if (strstr(line, "--force-lba")) {
2890	displayEntry(entry, prefix, i);	*lbaPtr = 1;
2891	i++;	} else {
2892	}	*lbaPtr = 0;
2893		}
2894		dbgPrintf("lba: %i\n", *lbaPtr);
2895		break;
2896		}
2897		}
2898
2899	return 0;	free(line);
2900		fclose(grubConf);
2901		return 0;
2902	}	}
2903
2904	struct singleLine * addLineTmpl(struct singleEntry * entry,	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2905	struct singleLine * tmplLine,	{
2906	struct singleLine * prevLine,	FILE *grubConf;
2907	const char * val,	char *line = NULL;
2908	struct configFileInfo * cfi)	size_t res = 0, len = 0;
2909	{	char *lastParamPtr = NULL;
2910	struct singleLine * newLine = lineDup(tmplLine);	char *secLastParamPtr = NULL;
2911		char installDeviceNumber = '\0';
2912	if (val) {	char *bounds = NULL;
	/* 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);
	}
	}
	}
2913
2914	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	if (!path)
2915	newLine->elements[0].item : "");	return 1;
2916		if (!devicePtr)
2917		return 1;
2918
2919	if (!entry->lines) {	grubConf = fopen(path, "r");
2920	/* first one on the list */	if (!grubConf)
2921	entry->lines = newLine;	return 1;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2922
2923	return newLine;	while ((res = getline(&line, &len, grubConf)) != -1) {
2924	}	if (strncmp(line, "setup", 5))
2925		continue;
2926
2927		if (line[res - 1] == '\n')
2928		line[res - 1] = '\0';
2929		else if (len > res)
2930		line[res] = '\0';
2931		else {
2932		line = realloc(line, res + 1);
2933		line[res] = '\0';
2934		}
2935
2936	/* val may be NULL */	lastParamPtr = bounds = line + res;
	struct singleLine *  addLine(struct singleEntry * entry,
	struct configFileInfo * cfi,
	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 if (type == LT_MENUENTRY) {
	char *lineend = "--class gnu-linux --class gnu --class os {";
	if (!val) {
	fprintf(stderr, "Line type LT_MENUENTRY requires a value\n");
	abort();
	}
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	abort();
	}
	tmpl.indent = "";
	tmpl.type = type;
	tmpl.numElements = 3;
	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);
	tmpl.elements[1].item = (char *)val;
	tmpl.elements[1].indent = alloca(2);
	sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
	tmpl.elements[2].item = alloca(strlen(lineend)+1);
	strcpy(tmpl.elements[2].item, lineend);
	tmpl.elements[2].indent = "";
	} else {
	kw = getKeywordByType(type, cfi);
	if (!kw) {
	fprintf(stderr, "Looking up keyword for unknown type %d\n", type);
	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 = "";
	}
	}
2937
2938	/* The last non-empty line gives us the indention to us and the line	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2939	to insert after. Note that comments are considered empty lines, which	while (!isspace(*lastParamPtr))
2940	may not be ideal? If there are no lines or we are looking at the	lastParamPtr--;
2941	first line, we use defaultIndent (the first line is normally indented	lastParamPtr++;
2942	differently from the rest) */
2943	for (line = entry->lines, prev = NULL; line; line = line->next) {	secLastParamPtr = lastParamPtr - 2;
2944	if (line->numElements) prev = line;	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2945	/* fall back on the last line if prev isn't otherwise set */
2946	if (!line->next && !prev) prev = line;	if (lastParamPtr + 3 > bounds) {
2947	}	dbgPrintf("lastParamPtr going over boundary");
2948		fclose(grubConf);
2949		free(line);
2950		return 1;
2951		}
2952		if (!strncmp(lastParamPtr, "(hd", 3))
2953		lastParamPtr += 3;
2954		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2955
2956		/*
2957		* Second last parameter will decide wether last parameter is
2958		* an IMAGE_DEVICE or INSTALL_DEVICE
2959		*/
2960		while (!isspace(*secLastParamPtr))
2961		secLastParamPtr--;
2962		secLastParamPtr++;
2963
2964		if (secLastParamPtr + 3 > bounds) {
2965		dbgPrintf("secLastParamPtr going over boundary");
2966		fclose(grubConf);
2967		free(line);
2968		return 1;
2969		}
2970		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2971		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2972		secLastParamPtr += 3;
2973		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2974		installDeviceNumber = *secLastParamPtr;
2975		} else {
2976		installDeviceNumber = *lastParamPtr;
2977		}
2978
2979	struct singleLine *menuEntry;	*devicePtr = malloc(6);
2980	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2981	if (tmpl.type == LT_ENTRY_END) {	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2982	if (menuEntry)	fclose(grubConf);
2983	tmpl.indent = menuEntry->indent;	free(line);
2984	else	return 0;
2985	tmpl.indent = defaultIndent ?: "";	}
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
2986
2987	return addLineTmpl(entry, &tmpl, prev, val, cfi);	free(line);
2988		fclose(grubConf);
2989		return 1;
2990	}	}
2991
2992	void removeLine(struct singleEntry * entry, struct singleLine * line) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2993	struct singleLine * prev;	{
2994	int i;	FILE *deviceMap;
2995		char *line = NULL;
2996		size_t res = 0, len = 0;
2997		char *devicePtr;
2998		char *bounds = NULL;
2999		const char *path;
3000		const static char default_path[] = "/boot/grub/device.map";
3001
3002	for (i = 0; i < line->numElements; i++) {	if (!device)
3003	free(line->elements[i].item);	return 1;
3004	free(line->elements[i].indent);	if (!bootPtr)
3005	}	return 1;
	free(line->elements);
	free(line->indent);
3006
3007	if (line == entry->lines) {	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
3008	entry->lines = line->next;	path = default_path;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3009
3010	free(line);	dbgPrintf("opening grub device.map file from: %s\n", path);
3011	}	deviceMap = fopen(path, "r");
3012		if (!deviceMap)
3013		return 1;
3014
3015	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	while ((res = getline(&line, &len, deviceMap)) != -1) {
3016	{	if (!strncmp(line, "#", 1))
3017	struct singleLine newLine = {	continue;
3018	.indent = tmplLine->indent,
3019	.type = tmplLine->type,	if (line[res - 1] == '\n')
3020	.next = tmplLine->next,	line[res - 1] = '\0';
3021	};	else if (len > res)
3022	int firstQuotedItem = -1;	line[res] = '\0';
3023	int quoteLen = 0;	else {
3024	int j;	line = realloc(line, res + 1);
3025	int element = 0;	line[res] = '\0';
3026	char *c;	}
	c = malloc(strlen(tmplLine->elements[0].item) + 1);
	strcpy(c, tmplLine->elements[0].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	c = NULL;
	for (j = 1; j < tmplLine->numElements; j++) {
	if (firstQuotedItem == -1) {
	quoteLen += strlen(tmplLine->elements[j].item);
	if (isquote(tmplLine->elements[j].item[0])) {
	firstQuotedItem = j;
	quoteLen += strlen(tmplLine->elements[j].indent);
	} else {
	c = malloc(quoteLen + 1);
	strcpy(c, tmplLine->elements[j].item);
	insertElement(&newLine, c, element++, cfi);
	free(c);
	quoteLen = 0;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
	}
	}
	while (tmplLine->numElements)
	removeElement(tmplLine, 0);
	if (tmplLine->elements)
	free(tmplLine->elements);
	tmplLine->numElements = newLine.numElements;
	tmplLine->elements = newLine.elements;
	}
	static void insertElement(struct singleLine * line,
	const char * item, int insertHere,
	struct configFileInfo * cfi)
	{
	struct keywordTypes * kw;
	char indent[2] = "";
	/* sanity check */
	if (insertHere > line->numElements) {
	dbgPrintf("insertElement() adjusting insertHere from %d to %d\n",
	insertHere, line->numElements);
	insertHere = line->numElements;
	}
3027
3028	line->elements = realloc(line->elements, (line->numElements + 1) *	devicePtr = line;
3029	sizeof(*line->elements));	bounds = line + res;
	memmove(&line->elements[insertHere+1],
	&line->elements[insertHere],
	(line->numElements - insertHere) *
	sizeof(*line->elements));
	line->elements[insertHere].item = strdup(item);
	kw = getKeywordByType(line->type, cfi);
	if (line->numElements == 0) {
	indent[0] = '\0';
	} else if (insertHere == 0) {
	indent[0] = kw->nextChar;
	} else if (kw->separatorChar != '\0') {
	indent[0] = kw->separatorChar;
	} else {
	indent[0] = ' ';
	}
3030
3031	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
3032	/* move the end-of-line forward */	devicePtr++;
3033	line->elements[insertHere].indent =	dbgPrintf("device: %s\n", devicePtr);
3034	line->elements[insertHere-1].indent;
3035	line->elements[insertHere-1].indent = strdup(indent);	if (!strncmp(devicePtr, device, strlen(device))) {
3036	} else {	devicePtr += strlen(device);
3037	line->elements[insertHere].indent = strdup(indent);	while (isspace(*devicePtr)
3038	}	&& ((devicePtr + 1) <= bounds))
3039		devicePtr++;
3040
3041	line->numElements++;	*bootPtr = strdup(devicePtr);
3042		break;
3043		}
3044		}
3045
3046	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	free(line);
3047	line->elements[0].item,	fclose(deviceMap);
3048	line->elements[insertHere].item,	return 0;
	line->elements[insertHere].indent,
	insertHere);
3049	}	}
3050
3051	static void removeElement(struct singleLine * line, int removeHere) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3052	int i;	{
3053		char *grubDevice;
3054
3055	/* sanity check */	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3056	if (removeHere >= line->numElements) return;	dbgPrintf("error looking for grub installation device\n");
3057		else
3058		dbgPrintf("grubby installation device: %s\n", grubDevice);
3059
3060	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3061	removeHere, line->elements[removeHere].item);	dbgPrintf("error looking for grub boot device\n");
3062		else
3063		dbgPrintf("grubby boot device: %s\n", *bootPtr);
3064
3065	free(line->elements[removeHere].item);	free(grubDevice);
3066		return 0;
3067		}
3068
3069	if (removeHere > 1) {	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3070	/* previous argument gets this argument's post-indentation */	{
3071	free(line->elements[removeHere-1].indent);	/*
3072	line->elements[removeHere-1].indent =	* This SuSE grub configuration file at this location is not your
3073	line->elements[removeHere].indent;	* average grub configuration file, but instead the grub commands
3074	} else {	* used to setup grub on that system.
3075	free(line->elements[removeHere].indent);	*/
3076	}	const char *path;
3077		const static char default_path[] = "/etc/grub.conf";
3078
3079	/* now collapse the array, but don't bother to realloc smaller */	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3080	for (i = removeHere; i < line->numElements - 1; i++)	path = default_path;
	line->elements[i] = line->elements[i + 1];
	line->numElements--;
	}
	int argMatch(const char * one, const char * two) {
	char * first, * second;
	char * chptr;
	first = strcpy(alloca(strlen(one) + 1), one);
	second = strcpy(alloca(strlen(two) + 1), two);
	chptr = strchr(first, '=');
	if (chptr) *chptr = '\0';
	chptr = strchr(second, '=');
	if (chptr) *chptr = '\0';
	return strcmp(first, second);
	}
	int updateActualImage(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * addArgs,
	const char * removeArgs, int multibootArgs) {
	struct singleEntry * entry;
	struct singleLine * line, * rootLine;
	int index = 0;
	int i, k;
	const char ** newArgs, ** oldArgs;
	const char ** arg;
	int useKernelArgs, useRoot;
	int firstElement;
	int *usedElements;
	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;
	}
	}
3081
3082	if (!removeArgs) {	if (!isSuseGrubConf(path))
3083	oldArgs = malloc(sizeof(*oldArgs));	return 1;
3084	*oldArgs = NULL;
3085	} else {	if (lbaPtr) {
3086	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	*lbaPtr = 0;
3087	fprintf(stderr,	if (suseGrubConfGetLba(path, lbaPtr))
3088	_("grubby: error separating arguments '%s'\n"), removeArgs);	return 1;
	free(newArgs);
	return 1;
3089	}	}
	}
3090
3091		if (bootPtr) {
3092		*bootPtr = NULL;
3093		suseGrubConfGetBoot(path, bootPtr);
3094		}
3095
3096	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	return 0;
3097	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	}
3098
3099	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3100	&& !multibootArgs);	{
3101		FILE *in;
3102		char buf[1024];
3103		char *chptr;
3104		char *start;
3105		char *param;
3106
3107	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	in = fopen("/etc/sysconfig/grub", "r");
3108		if (!in)
3109		return 1;
3110
3111	if (multibootArgs && !entry->multiboot)	if (lbaPtr)
3112	continue;	*lbaPtr = 0;
3113		if (bootPtr)
3114		*bootPtr = NULL;
3115
3116		while (fgets(buf, sizeof(buf), in)) {
3117		start = buf;
3118		while (isspace(*start))
3119		start++;
3120		if (*start == '#')
3121		continue;
3122
3123		chptr = strchr(start, '=');
3124		if (!chptr)
3125		continue;
3126		chptr--;
3127		while (*chptr && isspace(*chptr))
3128		chptr--;
3129		chptr++;
3130		*chptr = '\0';
3131
3132		param = chptr + 1;
3133		while (*param && isspace(*param))
3134		param++;
3135		if (*param == '=') {
3136		param++;
3137		while (*param && isspace(*param))
3138		param++;
3139		}
3140
3141	/* Determine where to put the args.  If this config supports	chptr = param;
3142	* LT_KERNELARGS, use that.  Otherwise use	while (*chptr && !isspace(*chptr))
3143	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	chptr++;
3144	*/	*chptr = '\0';
3145	if (useKernelArgs) {
3146	line = getLineByType(LT_KERNELARGS, entry->lines);	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3147	if (!line) {	*lbaPtr = 1;
3148	/* no LT_KERNELARGS, need to add it */	else if (!strcmp(start, "boot") && bootPtr)
3149	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	*bootPtr = strdup(param);
	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;
3150	}	}
3151
3152	/* handle the elilo case which does:	fclose(in);
	*   append="hypervisor args -- kernel args"
	*/
	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++) {
	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;
	break;
	}
	}
3153
3154	if (i < line->numElements && doreplace) {	return 0;
3155	/* direct replacement */	}
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
3156
3157	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	void dumpSysconfigGrub(void)
3158	/* root= replacement */	{
3159	rootLine = getLineByType(LT_ROOT, entry->lines);	char *boot = NULL;
3160	if (rootLine) {	int lba;
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
	}
	}
3161
3162	else {	if (isSuseSystem()) {
3163	/* insert/append */	if (parseSuseGrubConf(&lba, &boot)) {
3164	insertElement(line, *arg, i, cfg->cfi);	free(boot);
3165	usedElements = realloc(usedElements, line->numElements *	return;
3166	sizeof(*usedElements));	}
3167	memmove(&usedElements[i + 1], &usedElements[i],	} else {
3168	line->numElements - i - 1);	if (parseSysconfigGrub(&lba, &boot)) {
3169	usedElements[i] = 1;	free(boot);
3170		return;
3171	/* 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);
3172	}	}
	}
	free(newArgs);
	free(oldArgs);
3173
3174	return 0;	if (lba)
3175		printf("lba\n");
3176		if (boot) {
3177		printf("boot=%s\n", boot);
3178		free(boot);
3179		}
3180	}	}
3181
3182	int updateImage(struct grubConfig * cfg, const char * image,	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3183	const char * prefix, const char * addArgs,	{
3184	const char * removeArgs,	int i = 0;
3185	const char * addMBArgs, const char * removeMBArgs) {	struct singleEntry *entry;
3186	int rc = 0;	struct singleLine *line;
3187
3188	if (!image) return rc;	entry = findEntryByPath(config, kernel, prefix, &i);
3189		if (!entry) {
3190	/* update the main args first... */	fprintf(stderr, _("grubby: kernel not found\n"));
	if (addArgs || removeArgs)
	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);
	if (rc) return rc;
	/* and now any multiboot args */
	if (addMBArgs || removeMBArgs)
	rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1);
	return rc;
	}
	int updateInitrd(struct grubConfig * cfg, const char * image,
	const char * prefix, const char * initrd) {
	struct singleEntry * entry;
	struct singleLine * line, * kernelLine, *endLine = NULL;
	int index = 0;
	if (!image) return 0;
	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	kernelLine = getLineByType(LT_KERNEL, entry->lines);
	if (!kernelLine) continue;
	line = getLineByType(LT_INITRD, entry->lines);
	if (line)
	removeLine(entry, line);
	if (prefix) {
	int prefixLen = strlen(prefix);
	if (!strncmp(initrd, prefix, prefixLen))
	initrd += prefixLen;
	}
	endLine = getLineByType(LT_ENTRY_END, entry->lines);
	if (endLine)
	removeLine(entry, endLine);
	line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd);
	if (!line)
	return 1;
	if (endLine) {
	line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
	if (!line)
3191	return 1;	return 1;
3192	}	}
3193
3194	break;	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3195	}	be a better way */
3196		if (config->cfi == &grubConfigType) {
3197		dumpSysconfigGrub();
3198		} else {
3199		line = getLineByType(LT_BOOT, config->theLines);
3200		if (line && line->numElements >= 1) {
3201		printf("boot=%s\n", line->elements[1].item);
3202		}
3203
3204	return 0;	line = getLineByType(LT_LBA, config->theLines);
3205	}	if (line)
3206		printf("lba\n");
3207		}
3208
3209	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	displayEntry(config, entry, prefix, i);
	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;
	}
3210
3211	if (read(fd, bootSect, 512) != 512) {	i++;
3212	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3213	device, strerror(errno));	displayEntry(config, entry, prefix, i);
3214	return 1;	i++;
3215	}	}
	close(fd);
3216
	/* first three bytes should match, a jmp short should be in there */
	if (memcmp(boot, bootSect, 3))
3217	return 0;	return 0;
3218		}
3219
3220	if (boot[1] == JMP_SHORT_OPCODE) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3221	offset = boot[2] + 2;	struct singleLine *tmplLine,
3222	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	struct singleLine *prevLine,
3223	offset = (boot[3] << 8) + boot[2] + 2;	const char *val, struct configFileInfo *cfi)
3224	} else if (boot[0] == JMP_SHORT_OPCODE) {	{
3225	offset = boot[1] + 2;	struct singleLine *newLine = lineDup(tmplLine);
	/*
	* it looks like grub, when copying stage1 into the mbr, patches stage1
	* right after the JMP location, replacing other instructions such as
	* JMPs for NOOPs. So, relax the check a little bit by skipping those
	* different bytes.
	*/
	if ((bootSect[offset + 1] == NOOP_OPCODE)
	&& (bootSect[offset + 2] == NOOP_OPCODE)) {
	offset = offset + 3;
	}
	} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
	offset = (boot[2] << 8) + boot[1] + 2;
	} else {
	return 0;
	}
3226
3227	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	if (isEfi && cfi == &grub2ConfigType) {
3228	return 0;	enum lineType_e old = newLine->type;
3229		newLine->type = preferredLineType(newLine->type, cfi);
3230		if (old != newLine->type)
3231		newLine->elements[0].item =
3232		getKeyByType(newLine->type, cfi);
3233		}
3234
3235	return 2;	if (val) {
3236	}	/* override the inherited value with our own.
3237		* This is a little weak because it only applies to elements[1]
3238		*/
3239		if (newLine->numElements > 1)
3240		removeElement(newLine, 1);
3241		insertElement(newLine, val, 1, cfi);
3242
3243		/* but try to keep the rootspec from the template... sigh */
3244		if (tmplLine->
3245		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3246		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3247		LT_INITRD_16)) {
3248		char *rootspec =
3249		getRootSpecifier(tmplLine->elements[1].item);
3250		if (rootspec != NULL) {
3251		free(newLine->elements[1].item);
3252		newLine->elements[1].item =
3253		sdupprintf("%s%s", rootspec, val);
3254		}
3255		}
3256		}
3257
3258	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3259	int fd;	newLine->elements[0].item : "");
	char buf[65536];
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
3260
3261	/* it's on raid; we need to parse /proc/mdstat and check all of the	if (!entry->lines) {
3262	*raw* devices listed in there */	/* first one on the list */
3263		entry->lines = newLine;
3264		} else if (prevLine) {
3265		/* add after prevLine */
3266		newLine->next = prevLine->next;
3267		prevLine->next = newLine;
3268		}
3269
3270	if (!strncmp(mdDev, "/dev/", 5))	return newLine;
3271	mdDev += 5;	}
3272
3273	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	/* val may be NULL */
3274	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	struct singleLine *addLine(struct singleEntry *entry,
3275	strerror(errno));	struct configFileInfo *cfi,
3276	return 2;	enum lineType_e type, char *defaultIndent,
3277	}	const char *val)
3278		{
3279		struct singleLine *line, *prev;
3280		struct keywordTypes *kw;
3281		struct singleLine tmpl;
3282
3283	rc = read(fd, buf, sizeof(buf) - 1);	/* NB: This function shouldn't allocate items on the heap, rather on
3284	if (rc < 0 || rc == (sizeof(buf) - 1)) {	* the stack since it calls addLineTmpl which will make copies.
3285	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	*/
3286	strerror(errno));	if (type == LT_TITLE && cfi->titleBracketed) {
3287	close(fd);	/* we're doing a bracketed title (zipl) */
3288	return 2;	tmpl.type = type;
3289	}	tmpl.numElements = 1;
3290	close(fd);	tmpl.elements = alloca(sizeof(*tmpl.elements));
3291	buf[rc] = '\0';	tmpl.elements[0].item = alloca(strlen(val) + 3);
3292		sprintf(tmpl.elements[0].item, "[%s]", val);
3293		tmpl.elements[0].indent = "";
3294		val = NULL;
3295		} else if (type == LT_MENUENTRY) {
3296		char *lineend = "--class gnu-linux --class gnu --class os {";
3297		if (!val) {
3298		fprintf(stderr,
3299		"Line type LT_MENUENTRY requires a value\n");
3300		abort();
3301		}
3302		kw = getKeywordByType(type, cfi);
3303		if (!kw) {
3304		fprintf(stderr,
3305		"Looking up keyword for unknown type %d\n",
3306		type);
3307		abort();
3308		}
3309		tmpl.indent = "";
3310		tmpl.type = type;
3311		tmpl.numElements = 3;
3312		tmpl.elements =
3313		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3314		tmpl.elements[0].item = kw->key;
3315		tmpl.elements[0].indent = alloca(2);
3316		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3317		tmpl.elements[1].item = (char *)val;
3318		tmpl.elements[1].indent = alloca(2);
3319		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3320		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3321		strcpy(tmpl.elements[2].item, lineend);
3322		tmpl.elements[2].indent = "";
3323		} else {
3324		kw = getKeywordByType(type, cfi);
3325		if (!kw) {
3326		fprintf(stderr,
3327		"Looking up keyword for unknown type %d\n",
3328		type);
3329		abort();
3330		}
3331		tmpl.type = type;
3332		tmpl.numElements = val ? 2 : 1;
3333		tmpl.elements =
3334		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3335		tmpl.elements[0].item = kw->key;
3336		tmpl.elements[0].indent = alloca(2);
3337		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3338		if (val) {
3339		tmpl.elements[1].item = (char *)val;
3340		tmpl.elements[1].indent = "";
3341		}
3342		}
3343
3344	chptr = buf;	/* The last non-empty line gives us the indention to us and the line
3345	while (*chptr) {	* to insert after. Note that comments are considered empty lines,
3346	end = strchr(chptr, '\n');	* which may not be ideal? If there are no lines or we are looking at
3347	if (!end) break;	* the first line, we use defaultIndent (the first line is normally
3348	*end = '\0';	* indented differently from the rest) */
3349		for (line = entry->lines, prev = NULL; line; line = line->next) {
3350		if (line->numElements)
3351		prev = line;
3352		/* fall back on the last line if prev isn't otherwise set */
3353		if (!line->next && !prev)
3354		prev = line;
3355		}
3356
3357		struct singleLine *menuEntry;
3358		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3359		if (tmpl.type == LT_ENTRY_END) {
3360		if (menuEntry)
3361		tmpl.indent = menuEntry->indent;
3362		else
3363		tmpl.indent = defaultIndent ? : "";
3364		} else if (tmpl.type != LT_MENUENTRY) {
3365		if (menuEntry)
3366		tmpl.indent = "\t";
3367		else if (prev == entry->lines)
3368		tmpl.indent = defaultIndent ? : "";
3369		else
3370		tmpl.indent = prev->indent;
3371		}
3372
3373	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3374	chptr[strlen(mdDev)] == ' ') {	}
3375
3376	/* found the device */	void removeLine(struct singleEntry *entry, struct singleLine *line)
3377	while (*chptr && *chptr != ':') chptr++;	{
3378	chptr++;	struct singleLine *prev;
3379	while (*chptr && isspace(*chptr)) chptr++;	int i;
	/* 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++;
	}
3380
3381	/*  we're good to go */	for (i = 0; i < line->numElements; i++) {
3382	return 2;	free(line->elements[i].item);
3383		free(line->elements[i].indent);
3384	}	}
3385		free(line->elements);
3386		free(line->indent);
3387
3388	chptr = end + 1;	if (line == entry->lines) {
3389	}	entry->lines = line->next;
3390		} else {
3391		prev = entry->lines;
3392		while (prev->next != line)
3393		prev = prev->next;
3394		prev->next = line->next;
3395		}
3396
3397	fprintf(stderr,	free(line);
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3398	}	}
3399
3400	int checkForLilo(struct grubConfig * config) {	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3401	int fd;	{
3402	unsigned char boot[512];	struct singleLine newLine = {
3403	struct singleLine * line;	.indent = tmplLine->indent,
3404		.type = tmplLine->type,
3405	for (line = config->theLines; line; line = line->next)	.next = tmplLine->next,
3406	if (line->type == LT_BOOT) break;	};
3407		int firstQuotedItem = -1;
3408	if (!line) {	int quoteLen = 0;
3409	fprintf(stderr,	int j;
3410	_("grubby: no boot line found in lilo configuration\n"));	int element = 0;
3411	return 1;	char *c;
	}
3412
3413	if (line->numElements != 2) return 1;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3414		strcpy(c, tmplLine->elements[0].item);
3415		insertElement(&newLine, c, element++, cfi);
3416		free(c);
3417		c = NULL;
3418
3419		for (j = 1; j < tmplLine->numElements; j++) {
3420		if (firstQuotedItem == -1) {
3421		quoteLen += strlen(tmplLine->elements[j].item);
3422
3423		if (isquote(tmplLine->elements[j].item[0])) {
3424		firstQuotedItem = j;
3425		quoteLen +=
3426		strlen(tmplLine->elements[j].indent);
3427		} else {
3428		c = malloc(quoteLen + 1);
3429		strcpy(c, tmplLine->elements[j].item);
3430		insertElement(&newLine, c, element++, cfi);
3431		free(c);
3432		quoteLen = 0;
3433		}
3434		} else {
3435		int itemlen = strlen(tmplLine->elements[j].item);
3436		quoteLen += itemlen;
3437		quoteLen += strlen(tmplLine->elements[j].indent);
3438
3439		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3440		c = malloc(quoteLen + 1);
3441		c[0] = '\0';
3442		for (int i = firstQuotedItem; i < j + 1; i++) {
3443		strcat(c, tmplLine->elements[i].item);
3444		strcat(c, tmplLine->elements[i].indent);
3445		}
3446		insertElement(&newLine, c, element++, cfi);
3447		free(c);
3448
3449	fd = open("/boot/boot.b", O_RDONLY);	firstQuotedItem = -1;
3450	if (fd < 0) {	quoteLen = 0;
3451	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	}
3452	"/boot/boot.b", strerror(errno));	}
3453	return 1;	}
3454	}	while (tmplLine->numElements)
3455		removeElement(tmplLine, 0);
3456		if (tmplLine->elements)
3457		free(tmplLine->elements);
3458
3459		tmplLine->numElements = newLine.numElements;
3460		tmplLine->elements = newLine.elements;
3461		}
3462
3463	if (read(fd, boot, 512) != 512) {	static void insertElement(struct singleLine *line,
3464	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *item, int insertHere,
3465	"/boot/boot.b", strerror(errno));	struct configFileInfo *cfi)
3466	return 1;	{
3467	}	struct keywordTypes *kw;
3468	close(fd);	char indent[2] = "";
3469
3470	if (!strncmp("/dev/md", line->elements[1].item, 7))	/* sanity check */
3471	return checkLiloOnRaid(line->elements[1].item, boot);	if (insertHere > line->numElements) {
3472		dbgPrintf
3473		("insertElement() adjusting insertHere from %d to %d\n",
3474		insertHere, line->numElements);
3475		insertHere = line->numElements;
3476		}
3477
3478		line->elements = realloc(line->elements, (line->numElements + 1) *
3479		sizeof(*line->elements));
3480		memmove(&line->elements[insertHere + 1],
3481		&line->elements[insertHere],
3482		(line->numElements - insertHere) * sizeof(*line->elements));
3483		line->elements[insertHere].item = strdup(item);
3484
3485		kw = getKeywordByType(line->type, cfi);
3486
3487		if (line->numElements == 0) {
3488		indent[0] = '\0';
3489		} else if (insertHere == 0) {
3490		indent[0] = kw->nextChar;
3491		} else if (kw->separatorChar != '\0') {
3492		indent[0] = kw->separatorChar;
3493		} else {
3494		indent[0] = ' ';
3495		}
3496
3497	return checkDeviceBootloader(line->elements[1].item, boot);	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3498	}	/* move the end-of-line forward */
3499		line->elements[insertHere].indent =
3500		line->elements[insertHere - 1].indent;
3501		line->elements[insertHere - 1].indent = strdup(indent);
3502		} else {
3503		line->elements[insertHere].indent = strdup(indent);
3504		}
3505
3506	int checkForGrub2(struct grubConfig * config) {	line->numElements++;
	if (!access("/etc/grub.d/", R_OK))
	return 2;
3507
3508	return 1;	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3509		line->elements[0].item,
3510		line->elements[insertHere].item,
3511		line->elements[insertHere].indent, insertHere);
3512	}	}
3513
3514	int checkForGrub(struct grubConfig * config) {	static void removeElement(struct singleLine *line, int removeHere)
3515	int fd;	{
3516	unsigned char bootSect[512];	int i;
3517	char * boot;
3518	int onSuse;	/* sanity check */
3519		if (removeHere >= line->numElements)
3520	onSuse = isSuseSystem();	return;
3521	if (!onSuse) {
3522	if (parseSysconfigGrub(NULL, &boot)) return 0;	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3523	} else {	removeHere, line->elements[removeHere].item);
3524	if (parseSuseGrubConf(NULL, &boot)) return 0;
3525	}	free(line->elements[removeHere].item);
3526
3527		if (removeHere > 1) {
3528		/* previous argument gets this argument's post-indentation */
3529		free(line->elements[removeHere - 1].indent);
3530		line->elements[removeHere - 1].indent =
3531		line->elements[removeHere].indent;
3532		} else {
3533		free(line->elements[removeHere].indent);
3534		}
3535
3536		/* now collapse the array, but don't bother to realloc smaller */
3537		for (i = removeHere; i < line->numElements - 1; i++)
3538		line->elements[i] = line->elements[i + 1];
3539
3540		line->numElements--;
3541		}
3542
3543		int argMatch(const char *one, const char *two)
3544		{
3545		char *first, *second;
3546		char *chptr;
3547
3548		first = strcpy(alloca(strlen(one) + 1), one);
3549		second = strcpy(alloca(strlen(two) + 1), two);
3550
3551		chptr = strchr(first, '=');
3552		if (chptr)
3553		*chptr = '\0';
3554
3555		chptr = strchr(second, '=');
3556		if (chptr)
3557		*chptr = '\0';
3558
3559		return strcmp(first, second);
3560		}
3561
3562		int updateActualImage(struct grubConfig *cfg, const char *image,
3563		const char *prefix, const char *addArgs,
3564		const char *removeArgs, int multibootArgs)
3565		{
3566		struct singleEntry *entry;
3567		struct singleLine *line, *rootLine;
3568		int index = 0;
3569		int i, k;
3570		const char **newArgs, **oldArgs;
3571		const char **arg;
3572		int useKernelArgs, useRoot;
3573		int firstElement;
3574		int *usedElements;
3575		int doreplace;
3576
3577		if (!image)
3578		return 0;
3579
3580		if (!addArgs) {
3581		newArgs = malloc(sizeof(*newArgs));
3582		*newArgs = NULL;
3583		} else {
3584		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3585		fprintf(stderr,
3586		_("grubby: error separating arguments '%s'\n"),
3587		addArgs);
3588		return 1;
3589		}
3590		}
3591
3592		if (!removeArgs) {
3593		oldArgs = malloc(sizeof(*oldArgs));
3594		*oldArgs = NULL;
3595		} else {
3596		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3597		fprintf(stderr,
3598		_("grubby: error separating arguments '%s'\n"),
3599		removeArgs);
3600		free(newArgs);
3601		return 1;
3602		}
3603		}
3604
3605		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3606		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3607
3608		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3609		&& !multibootArgs);
3610
3611		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3612
3613		if (multibootArgs && !entry->multiboot)
3614		continue;
3615
3616		/* Determine where to put the args.  If this config supports
3617		* LT_KERNELARGS, use that.  Otherwise use
3618		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3619		*/
3620		if (useKernelArgs) {
3621		line = getLineByType(LT_KERNELARGS, entry->lines);
3622		if (!line) {
3623		/* no LT_KERNELARGS, need to add it */
3624		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3625		cfg->secondaryIndent, NULL);
3626		}
3627		firstElement = 1;
3628
3629		} else if (multibootArgs) {
3630		line = getLineByType(LT_HYPER, entry->lines);
3631		if (!line) {
3632		/* a multiboot entry without LT_HYPER? */
3633		continue;
3634		}
3635		firstElement = 2;
3636
3637		} else {
3638		line =
3639		getLineByType(LT_KERNEL | LT_MBMODULE |
3640		LT_KERNEL_EFI | LT_KERNEL_16,
3641		entry->lines);
3642		if (!line) {
3643		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3644		continue;
3645		}
3646		firstElement = 2;
3647		}
3648
3649		/* handle the elilo case which does:
3650		*   append="hypervisor args -- kernel args"
3651		*/
3652		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3653		/* this is a multiboot entry, make sure there's
3654		* -- on the args line
3655		*/
3656		for (i = firstElement; i < line->numElements; i++) {
3657		if (!strcmp(line->elements[i].item, "--"))
3658		break;
3659		}
3660		if (i == line->numElements) {
3661		/* assume all existing args are kernel args,
3662		* prepend -- to make it official
3663		*/
3664		insertElement(line, "--", firstElement,
3665		cfg->cfi);
3666		i = firstElement;
3667		}
3668		if (!multibootArgs) {
3669		/* kernel args start after the -- */
3670		firstElement = i + 1;
3671		}
3672		} else if (cfg->cfi->mbConcatArgs) {
3673		/* this is a non-multiboot entry, remove hyper args */
3674		for (i = firstElement; i < line->numElements; i++) {
3675		if (!strcmp(line->elements[i].item, "--"))
3676		break;
3677		}
3678		if (i < line->numElements) {
3679		/* remove args up to -- */
3680		while (strcmp
3681		(line->elements[firstElement].item,
3682		"--"))
3683		removeElement(line, firstElement);
3684		/* remove -- */
3685		removeElement(line, firstElement);
3686		}
3687		}
3688
3689		usedElements = calloc(line->numElements, sizeof(*usedElements));
3690
3691		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3692
3693		doreplace = 1;
3694		for (i = firstElement; i < line->numElements; i++) {
3695		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3696		!strcmp(line->elements[i].item, "--")) {
3697		/* reached the end of hyper args, insert here */
3698		doreplace = 0;
3699		break;
3700		}
3701		if (usedElements[i])
3702		continue;
3703		if (!argMatch(line->elements[i].item, *arg)) {
3704		usedElements[i] = 1;
3705		break;
3706		}
3707		}
3708
3709		if (i < line->numElements && doreplace) {
3710		/* direct replacement */
3711		free(line->elements[i].item);
3712		line->elements[i].item = strdup(*arg);
3713
3714		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3715		/* root= replacement */
3716		rootLine = getLineByType(LT_ROOT, entry->lines);
3717		if (rootLine) {
3718		free(rootLine->elements[1].item);
3719		rootLine->elements[1].item =
3720		strdup(*arg + 5);
3721		} else {
3722		rootLine =
3723		addLine(entry, cfg->cfi, LT_ROOT,
3724		cfg->secondaryIndent,
3725		*arg + 5);
3726		}
3727		}
3728
3729		else {
3730		/* insert/append */
3731		insertElement(line, *arg, i, cfg->cfi);
3732		usedElements =
3733		realloc(usedElements,
3734		line->numElements *
3735		sizeof(*usedElements));
3736		memmove(&usedElements[i + 1], &usedElements[i],
3737		line->numElements - i - 1);
3738		usedElements[i] = 1;
3739
3740		/* if we updated a root= here even though
3741		* there is a LT_ROOT available we need to
3742		* remove the LT_ROOT entry (this will happen
3743		* if we switch from a device to a label) */
3744		if (useRoot && !strncmp(*arg, "root=", 5)) {
3745		rootLine =
3746		getLineByType(LT_ROOT,
3747		entry->lines);
3748		if (rootLine)
3749		removeLine(entry, rootLine);
3750		}
3751		}
3752		}
3753
3754		free(usedElements);
3755
3756		for (arg = oldArgs; *arg; arg++) {
3757		for (i = firstElement; i < line->numElements; i++) {
3758		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3759		!strcmp(line->elements[i].item, "--"))
3760		/* reached the end of hyper args, stop here */
3761		break;
3762		if (!argMatch(line->elements[i].item, *arg)) {
3763		removeElement(line, i);
3764		break;
3765		}
3766		}
3767		/* handle removing LT_ROOT line too */
3768		if (useRoot && !strncmp(*arg, "root=", 5)) {
3769		rootLine = getLineByType(LT_ROOT, entry->lines);
3770		if (rootLine)
3771		removeLine(entry, rootLine);
3772		}
3773		}
3774
3775		if (line->numElements == 1) {
3776		/* don't need the line at all (note it has to be a
3777		LT_KERNELARGS for this to happen */
3778		removeLine(entry, line);
3779		}
3780		}
3781
3782		free(newArgs);
3783		free(oldArgs);
3784
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3785	return 0;	return 0;
3786		}
3787
3788		int updateImage(struct grubConfig *cfg, const char *image,
3789		const char *prefix, const char *addArgs,
3790		const char *removeArgs,
3791		const char *addMBArgs, const char *removeMBArgs)
3792		{
3793		int rc = 0;
3794
3795		if (!image)
3796		return rc;
3797
3798		/* update the main args first... */
3799		if (addArgs || removeArgs)
3800		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3801		0);
3802		if (rc)
3803		return rc;
3804
3805		/* and now any multiboot args */
3806		if (addMBArgs || removeMBArgs)
3807		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3808		removeMBArgs, 1);
3809		return rc;
3810		}
3811
3812		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3813		const char *image, const char *prefix, const char *initrd,
3814		const char *title)
3815		{
3816		struct singleEntry *entry;
3817		struct singleLine *line, *kernelLine, *endLine = NULL;
3818		int index = 0;
3819
3820		if (!image)
3821		return 0;
3822
3823		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3824		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3825		if (!kernelLine)
3826		continue;
3827
3828		/* if title is supplied, the entry's title must match it. */
3829		if (title) {
3830		char *linetitle;
3831
3832		line =
3833		getLineByType(LT_TITLE | LT_MENUENTRY,
3834		entry->lines);
3835		if (!line)
3836		continue;
3837
3838		linetitle = extractTitle(cfg, line);
3839		if (!linetitle)
3840		continue;
3841		if (strcmp(title, linetitle)) {
3842		free(linetitle);
3843		continue;
3844		}
3845		free(linetitle);
3846		}
3847
3848		if (prefix) {
3849		int prefixLen = strlen(prefix);
3850		if (!strncmp(initrd, prefix, prefixLen))
3851		initrd += prefixLen;
3852		}
3853		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3854		if (endLine)
3855		removeLine(entry, endLine);
3856		line =
3857		addLine(entry, cfg->cfi,
3858		preferredLineType(LT_MBMODULE, cfg->cfi),
3859		kernelLine->indent, initrd);
3860		if (!line)
3861		return 1;
3862		if (endLine) {
3863		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3864		if (!line)
3865		return 1;
3866		}
3867
3868		break;
3869		}
3870
	fd = open("/boot/grub/stage1", O_RDONLY);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
3871	return 0;	return 0;
3872		}
3873
3874	if (read(fd, bootSect, 512) != 512) {	int updateInitrd(struct grubConfig *cfg, const char *image,
3875	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	const char *prefix, const char *initrd, const char *title)
3876	"/boot/grub/stage1", strerror(errno));	{
3877	close(fd);	struct singleEntry *entry;
3878	return 1;	struct singleLine *line, *kernelLine, *endLine = NULL;
3879	}	int index = 0;
3880	close(fd);
3881		if (!image)
3882		return 0;
3883
3884		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3885		kernelLine =
3886		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3887		entry->lines);
3888		if (!kernelLine)
3889		continue;
3890
3891		/* if title is supplied, the entry's title must match it. */
3892		if (title) {
3893		char *linetitle;
3894
3895		line =
3896		getLineByType(LT_TITLE | LT_MENUENTRY,
3897		entry->lines);
3898		if (!line)
3899		continue;
3900
3901		linetitle = extractTitle(cfg, line);
3902		if (!linetitle)
3903		continue;
3904		if (strcmp(title, linetitle)) {
3905		free(linetitle);
3906		continue;
3907		}
3908		free(linetitle);
3909		}
3910
3911		line =
3912		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3913		entry->lines);
3914		if (line)
3915		removeLine(entry, line);
3916		if (prefix) {
3917		int prefixLen = strlen(prefix);
3918		if (!strncmp(initrd, prefix, prefixLen))
3919		initrd += prefixLen;
3920		}
3921		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3922		if (endLine)
3923		removeLine(entry, endLine);
3924		enum lineType_e lt;
3925		switch (kernelLine->type) {
3926		case LT_KERNEL:
3927		lt = LT_INITRD;
3928		break;
3929		case LT_KERNEL_EFI:
3930		lt = LT_INITRD_EFI;
3931		break;
3932		case LT_KERNEL_16:
3933		lt = LT_INITRD_16;
3934		break;
3935		default:
3936		lt = preferredLineType(LT_INITRD, cfg->cfi);
3937		}
3938		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3939		if (!line)
3940		return 1;
3941		if (endLine) {
3942		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3943		if (!line)
3944		return 1;
3945		}
3946
3947		break;
3948		}
3949
3950		return 0;
3951		}
3952
3953		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3954		{
3955		int fd;
3956		unsigned char bootSect[512];
3957		int offset;
3958
3959		fd = open(device, O_RDONLY);
3960		if (fd < 0) {
3961		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3962		device, strerror(errno));
3963		return 1;
3964		}
3965
3966		if (read(fd, bootSect, 512) != 512) {
3967		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3968		device, strerror(errno));
3969		return 1;
3970		}
3971		close(fd);
3972
3973		/* first three bytes should match, a jmp short should be in there */
3974		if (memcmp(boot, bootSect, 3))
3975		return 0;
3976
3977		if (boot[1] == JMP_SHORT_OPCODE) {
3978		offset = boot[2] + 2;
3979		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3980		offset = (boot[3] << 8) + boot[2] + 2;
3981		} else if (boot[0] == JMP_SHORT_OPCODE) {
3982		offset = boot[1] + 2;
3983		/*
3984		* it looks like grub, when copying stage1 into the mbr,
3985		* patches stage1 right after the JMP location, replacing
3986		* other instructions such as JMPs for NOOPs. So, relax the
3987		* check a little bit by skipping those different bytes.
3988		*/
3989		if ((bootSect[offset + 1] == NOOP_OPCODE)
3990		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3991		offset = offset + 3;
3992		}
3993		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3994		offset = (boot[2] << 8) + boot[1] + 2;
3995		} else {
3996		return 0;
3997		}
3998
3999		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
4000		return 0;
4001
	if (!onSuse)
	return checkDeviceBootloader(boot, bootSect);
	else
	/*
	* The more elaborate checks do not work on SuSE. The checks done
	* seem to be reasonble (at least for now), so just return success
	*/
4002	return 2;	return 2;
4003	}	}
4004
4005	int checkForExtLinux(struct grubConfig * config) {	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
4006	int fd;	{
4007	unsigned char bootSect[512];	int fd;
4008	char * boot;	char buf[65536];
4009	char executable[] = "/boot/extlinux/extlinux";	char *end;
4010		char *chptr;
4011		char *chptr2;
4012		int rc;
4013
4014		/* it's on raid; we need to parse /proc/mdstat and check all of the
4015		*raw* devices listed in there */
4016
4017		if (!strncmp(mdDev, "/dev/", 5))
4018		mdDev += 5;
4019
4020		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
4021		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
4022		strerror(errno));
4023		return 2;
4024		}
4025
4026		rc = read(fd, buf, sizeof(buf) - 1);
4027		if (rc < 0 || rc == (sizeof(buf) - 1)) {
4028		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
4029		strerror(errno));
4030		close(fd);
4031		return 2;
4032		}
4033		close(fd);
4034		buf[rc] = '\0';
4035
4036	printf("entered: checkForExtLinux()\n");	chptr = buf;
4037		while (*chptr) {
4038		end = strchr(chptr, '\n');
4039		if (!end)
4040		break;
4041		*end = '\0';
4042
4043	if (parseSysconfigGrub(NULL, &boot))	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
4044	return 0;	chptr[strlen(mdDev)] == ' ') {
4045
4046	/* assume grub is not installed -- not an error condition */	/* found the device */
4047	if (!boot)	while (*chptr && *chptr != ':')
4048	return 0;	chptr++;
4049		chptr++;
4050		while (*chptr && isspace(*chptr))
4051		chptr++;
4052
4053		/* skip the "active" bit */
4054		while (*chptr && !isspace(*chptr))
4055		chptr++;
4056		while (*chptr && isspace(*chptr))
4057		chptr++;
4058
4059		/* skip the raid level */
4060		while (*chptr && !isspace(*chptr))
4061		chptr++;
4062		while (*chptr && isspace(*chptr))
4063		chptr++;
4064
4065		/* everything else is partition stuff */
4066		while (*chptr) {
4067		chptr2 = chptr;
4068		while (*chptr2 && *chptr2 != '[')
4069		chptr2++;
4070		if (!*chptr2)
4071		break;
4072
4073		/* yank off the numbers at the end */
4074		chptr2--;
4075		while (isdigit(*chptr2) && chptr2 > chptr)
4076		chptr2--;
4077		chptr2++;
4078		*chptr2 = '\0';
4079
4080		/* Better, now we need the /dev/ back. We're
4081		* done with everything before this point, so
4082		* we can just put the /dev/ part there.
4083		* There will always be room. */
4084		memcpy(chptr - 5, "/dev/", 5);
4085		rc = checkDeviceBootloader(chptr - 5, boot);
4086		if (rc != 2) {
4087		return rc;
4088		}
4089
4090	fd = open(executable, O_RDONLY);	chptr = chptr2 + 1;
4091	if (fd < 0)	/* skip the [11] bit */
4092	/* this doesn't exist if grub hasn't been installed */	while (*chptr && !isspace(*chptr))
4093		chptr++;
4094		/* and move to the next one */
4095		while (*chptr && isspace(*chptr))
4096		chptr++;
4097		}
4098
4099		/*  we're good to go */
4100		return 2;
4101		}
4102
4103		chptr = end + 1;
4104		}
4105
4106		fprintf(stderr,
4107		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4108		mdDev);
4109	return 0;	return 0;
4110		}
4111
4112		int checkForLilo(struct grubConfig *config)
4113		{
4114		int fd;
4115		unsigned char boot[512];
4116		struct singleLine *line;
4117
4118		for (line = config->theLines; line; line = line->next)
4119		if (line->type == LT_BOOT)
4120		break;
4121
4122		if (!line) {
4123		fprintf(stderr,
4124		_
4125		("grubby: no boot line found in lilo configuration\n"));
4126		return 1;
4127		}
4128
4129		if (line->numElements != 2)
4130		return 1;
4131
4132		fd = open("/boot/boot.b", O_RDONLY);
4133		if (fd < 0) {
4134		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4135		"/boot/boot.b", strerror(errno));
4136		return 1;
4137		}
4138
4139		if (read(fd, boot, 512) != 512) {
4140		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4141		"/boot/boot.b", strerror(errno));
4142		return 1;
4143		}
4144		close(fd);
4145
4146		if (!strncmp("/dev/md", line->elements[1].item, 7))
4147		return checkLiloOnRaid(line->elements[1].item, boot);
4148
4149		return checkDeviceBootloader(line->elements[1].item, boot);
4150		}
4151
4152		int checkForGrub2(struct grubConfig *config)
4153		{
4154		if (!access("/etc/grub.d/", R_OK))
4155		return 2;
4156
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	executable, strerror(errno));
4157	return 1;	return 1;
4158	}	}
4159	close(fd);
4160		int checkForGrub(struct grubConfig *config)
4161		{
4162		int fd;
4163		unsigned char bootSect[512];
4164		char *boot;
4165		int onSuse = isSuseSystem();
4166
4167		if (onSuse) {
4168		if (parseSuseGrubConf(NULL, &boot))
4169		return 0;
4170		} else {
4171		if (parseSysconfigGrub(NULL, &boot))
4172		return 0;
4173		}
4174
4175	return checkDeviceBootloader(boot, bootSect);	/* assume grub is not installed -- not an error condition */
4176		if (!boot)
4177		return 0;
4178
4179		fd = open("/boot/grub/stage1", O_RDONLY);
4180		if (fd < 0)
4181		/* this doesn't exist if grub hasn't been installed */
4182		return 0;
4183
4184		if (read(fd, bootSect, 512) != 512) {
4185		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4186		"/boot/grub/stage1", strerror(errno));
4187		close(fd);
4188		return 1;
4189		}
4190		close(fd);
4191
4192		/* The more elaborate checks do not work on SuSE. The checks done
4193		* seem to be reasonble (at least for now), so just return success
4194		*/
4195		if (onSuse)
4196		return 2;
4197
4198		return checkDeviceBootloader(boot, bootSect);
4199	}	}
4200
4201	static char * getRootSpecifier(char * str) {	int checkForExtLinux(struct grubConfig *config)
4202	char * idx, * rootspec = NULL;	{
4203		int fd;
4204		unsigned char bootSect[512];
4205		char *boot;
4206		char executable[] = "/boot/extlinux/extlinux";
4207
4208	if (*str == '(') {	printf("entered: checkForExtLinux()\n");
4209	idx = rootspec = strdup(str);
4210	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;	if (parseSysconfigGrub(NULL, &boot))
4211	*(++idx) = '\0';	return 0;
4212	}
4213	return rootspec;	/* assume grub is not installed -- not an error condition */
4214		if (!boot)
4215		return 0;
4216
4217		fd = open(executable, O_RDONLY);
4218		if (fd < 0)
4219		/* this doesn't exist if grub hasn't been installed */
4220		return 0;
4221
4222		if (read(fd, bootSect, 512) != 512) {
4223		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4224		executable, strerror(errno));
4225		return 1;
4226		}
4227		close(fd);
4228
4229		return checkDeviceBootloader(boot, bootSect);
4230	}	}
4231
4232	static char * getInitrdVal(struct grubConfig * config,	int checkForYaboot(struct grubConfig *config)
4233	const char * prefix, struct singleLine *tmplLine,	{
4234	const char * newKernelInitrd,	/*
4235	const char ** extraInitrds, int extraInitrdCount)	* This is a simplistic check that we consider good enough for own puporses
4236	{	*
4237	char *initrdVal, *end;	* If we were to properly check if yaboot is *installed* we'd need to:
4238	int i;	* 1) get the system boot device (LT_BOOT)
4239	size_t totalSize;	* 2) considering it's a raw filesystem, check if the yaboot binary matches
4240	size_t prefixLen;	*    the content on the boot device
4241	char separatorChar;	* 3) if not, copy the binary to a temporary file and run "addnote" on it
4242		* 4) check again if binary and boot device contents match
4243	prefixLen = strlen(prefix);	*/
4244	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	if (!access("/etc/yaboot.conf", R_OK))
4245		return 2;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4246
4247	initrdVal = end = malloc(totalSize);	return 1;
4248		}
4249
4250	end = stpcpy (end, newKernelInitrd + prefixLen);	int checkForElilo(struct grubConfig *config)
4251		{
4252		if (!access("/etc/elilo.conf", R_OK))
4253		return 2;
4254
4255	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	return 1;
4256	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
4257
4258	extraInitrd = extraInitrds[i] + prefixLen;	static char *getRootSpecifier(char *str)
4259	/* Don't add entries that are already there */	{
4260	if (tmplLine != NULL) {	char *idx, *rootspec = NULL;
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4261
4262	if (j != tmplLine->numElements)	if (*str == '(') {
4263	continue;	idx = rootspec = strdup(str);
4264		while (*idx && (*idx != ')') && (!isspace(*idx)))
4265		idx++;
4266		*(++idx) = '\0';
4267	}	}
4268		return rootspec;
4269		}
4270
4271	*end++ = separatorChar;	static char *getInitrdVal(struct grubConfig *config,
4272	end = stpcpy(end, extraInitrd);	const char *prefix, struct singleLine *tmplLine,
4273	}	const char *newKernelInitrd,
4274		const char **extraInitrds, int extraInitrdCount)
4275		{
4276		char *initrdVal, *end;
4277		int i;
4278		size_t totalSize;
4279		size_t prefixLen;
4280		char separatorChar;
4281
4282		prefixLen = strlen(prefix);
4283		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4284
4285		for (i = 0; i < extraInitrdCount; i++) {
4286		totalSize += sizeof(separatorChar);
4287		totalSize += strlen(extraInitrds[i]) - prefixLen;
4288		}
4289
4290		initrdVal = end = malloc(totalSize);
4291
4292		end = stpcpy(end, newKernelInitrd + prefixLen);
4293
4294		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4295		for (i = 0; i < extraInitrdCount; i++) {
4296		const char *extraInitrd;
4297		int j;
4298
4299		extraInitrd = extraInitrds[i] + prefixLen;
4300		/* Don't add entries that are already there */
4301		if (tmplLine != NULL) {
4302		for (j = 2; j < tmplLine->numElements; j++)
4303		if (strcmp
4304		(extraInitrd,
4305		tmplLine->elements[j].item) == 0)
4306		break;
4307
4308		if (j != tmplLine->numElements)
4309		continue;
4310		}
4311
4312	return initrdVal;	*end++ = separatorChar;
4313		end = stpcpy(end, extraInitrd);
4314		}
4315
4316		return initrdVal;
4317	}	}
4318
4319	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4320	const char * prefix,	const char *prefix,
4321	const char * newKernelPath, const char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4322	const char * newKernelArgs, const char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4323	const char ** extraInitrds, int extraInitrdCount,	const char **extraInitrds, int extraInitrdCount,
4324	const char * newMBKernel, const char * newMBKernelArgs) {	const char *newMBKernel, const char *newMBKernelArgs,
4325	struct singleEntry * new;	const char *newDevTreePath, int newIndex)
4326	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	{
4327	int needs;	struct singleEntry *new, *entry, *prev = NULL;
4328	char * chptr;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4329		int needs;
4330	if (!newKernelPath) return 0;	char *indexs;
4331		char *chptr;
4332	/* if the newKernelTitle is too long silently munge it into something	int rc;
4333	* we can live with. truncating is first check, then we'll just mess with
4334	* it until it looks better */	if (!newKernelPath)
4335	if (config->cfi->maxTitleLength &&	return 0;
4336
4337		rc = asprintf(&indexs, "%d", newIndex);
4338		if (rc < 0)
4339		return 1;
4340
4341		/* if the newKernelTitle is too long silently munge it into something
4342		* we can live with. truncating is first check, then we'll just mess with
4343		* it until it looks better */
4344		if (config->cfi->maxTitleLength &&
4345	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4346	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4347	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4348	int i = 1;	int i = 1;
4349
4350		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4351		newKernelTitle);
4352		while (findEntryByPath(config, buf, NULL, NULL)) {
4353		sprintf(numBuf, "%d", i++);
4354		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4355		}
4356
4357	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	newKernelTitle = buf + 6;
	while (findEntryByPath(config, buf, NULL, NULL)) {
	sprintf(numBuf, "%d", i++);
	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4358	}	}
4359
4360	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4361	}	new->skip = 0;
4362		new->multiboot = 0;
4363		new->lines = NULL;
4364		entry = config->entries;
4365		for (unsigned int i = 0; i < newIndex; i++) {
4366		if (!entry)
4367		break;
4368		prev = entry;
4369		entry = entry->next;
4370		}
4371		new->next = entry;
4372
4373	new = malloc(sizeof(*new));	if (prev)
4374	new->skip = 0;	prev->next = new;
4375	new->multiboot = 0;	else
4376	new->next = config->entries;	config->entries = new;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
4377
4378	if (template) {	/* copy/update from the template */
4379	for (masterLine = template->lines;	needs = NEED_KERNEL | NEED_TITLE;
4380	masterLine && (tmplLine = lineDup(masterLine));	if (newKernelInitrd)
4381	lineFree(tmplLine), masterLine = masterLine->next)	needs |= NEED_INITRD;
4382	{	if (newMBKernel) {
4383	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	needs |= NEED_MB;
4384		new->multiboot = 1;
4385	/* skip comments */	}
4386	chptr = tmplLine->indent;	if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4387	while (*chptr && isspace(*chptr)) chptr++;	needs |= NEED_DEVTREE;
4388	if (*chptr == '#') continue;
4389		if (template) {
4390	if (tmplLine->type == LT_KERNEL &&	for (masterLine = template->lines;
4391	tmplLine->numElements >= 2) {	masterLine && (tmplLine = lineDup(masterLine));
4392	if (!template->multiboot && (needs & NEED_MB)) {	lineFree(tmplLine), masterLine = masterLine->next) {
4393	/* it's not a multiboot template and this is the kernel	dbgPrintf("addNewKernel processing %d\n",
4394	* line.  Try to be intelligent about inserting the	tmplLine->type);
4395	* hypervisor at the same time.
4396	*/	/* skip comments */
4397	if (config->cfi->mbHyperFirst) {	chptr = tmplLine->indent;
4398	/* insert the hypervisor first */	while (*chptr && isspace(*chptr))
4399	newLine = addLine(new, config->cfi, LT_HYPER,	chptr++;
4400	tmplLine->indent,	if (*chptr == '#')
4401	newMBKernel + strlen(prefix));	continue;
4402	/* set up for adding the kernel line */
4403	free(tmplLine->indent);	if (iskernel(tmplLine->type)
4404	tmplLine->indent = strdup(config->secondaryIndent);	&& tmplLine->numElements >= 2) {
4405	needs &= ~NEED_MB;	if (!template->multiboot && (needs & NEED_MB)) {
4406	}	/* it's not a multiboot template and
4407	if (needs & NEED_KERNEL) {	* this is the kernel line.  Try to
4408	/* use addLineTmpl to preserve line elements,	* be intelligent about inserting the
4409	* otherwise we could just call addLine.  Unfortunately	* hypervisor at the same time.
4410	* this means making some changes to the template	*/
4411	* such as the indent change above and the type	if (config->cfi->mbHyperFirst) {
4412	* change below.	/* insert the hypervisor first */
4413	*/	newLine =
4414	struct keywordTypes * mbm_kw =	addLine(new, config->cfi,
4415	getKeywordByType(LT_MBMODULE, config->cfi);	LT_HYPER,
4416	if (mbm_kw) {	tmplLine->indent,
4417	tmplLine->type = LT_MBMODULE;	newMBKernel +
4418	free(tmplLine->elements[0].item);	strlen(prefix));
4419	tmplLine->elements[0].item = strdup(mbm_kw->key);	/* set up for adding the
4420	}	* kernel line */
4421	newLine = addLineTmpl(new, tmplLine, newLine,	free(tmplLine->indent);
4422	newKernelPath + strlen(prefix), config->cfi);	tmplLine->indent =
4423	needs &= ~NEED_KERNEL;	strdup(config->
4424	}	secondaryIndent);
4425	if (needs & NEED_MB) { /* !mbHyperFirst */	needs &= ~NEED_MB;
4426	newLine = addLine(new, config->cfi, LT_HYPER,	}
4427	config->secondaryIndent,	if (needs & NEED_KERNEL) {
4428	newMBKernel + strlen(prefix));	/* use addLineTmpl to
4429	needs &= ~NEED_MB;	* preserve line elements,
4430	}	* otherwise we could just
4431	} else if (needs & NEED_KERNEL) {	* call addLine.
4432	newLine = addLineTmpl(new, tmplLine, newLine,	* Unfortunately this means
4433	newKernelPath + strlen(prefix), config->cfi);	* making some changes to the
4434	needs &= ~NEED_KERNEL;	* template such as the
4435	}	* indent change above and
4436		* the type change below.
4437	} else if (tmplLine->type == LT_HYPER &&	*/
4438	tmplLine->numElements >= 2) {	struct keywordTypes *mbm_kw =
4439	if (needs & NEED_MB) {	getKeywordByType
4440	newLine = addLineTmpl(new, tmplLine, newLine,	(LT_MBMODULE, config->cfi);
4441	newMBKernel + strlen(prefix), config->cfi);	if (mbm_kw) {
4442	needs &= ~NEED_MB;	tmplLine->type =
4443	}	LT_MBMODULE;
4444		free(tmplLine->
4445	} else if (tmplLine->type == LT_MBMODULE &&	elements[0].item);
4446	tmplLine->numElements >= 2) {	tmplLine->elements[0].
4447	if (new->multiboot) {	item =
4448	if (needs & NEED_KERNEL) {	strdup(mbm_kw->key);
4449	newLine = addLineTmpl(new, tmplLine, newLine,	}
4450	newKernelPath +	newLine =
4451	strlen(prefix), config->cfi);	addLineTmpl(new, tmplLine,
4452	needs &= ~NEED_KERNEL;	newLine,
4453	} else if (config->cfi->mbInitRdIsModule &&	newKernelPath +
4454	(needs & NEED_INITRD)) {	strlen(prefix),
4455	char *initrdVal;	config->cfi);
4456	initrdVal = getInitrdVal(config, prefix, tmplLine,	needs &= ~NEED_KERNEL;
4457	newKernelInitrd, extraInitrds,	}
4458	extraInitrdCount);	if (needs & NEED_MB) { /* !mbHyperFirst */
4459	newLine = addLineTmpl(new, tmplLine, newLine,	newLine =
4460	initrdVal, config->cfi);	addLine(new, config->cfi,
4461	free(initrdVal);	LT_HYPER,
4462	needs &= ~NEED_INITRD;	config->
4463	}	secondaryIndent,
4464	} else if (needs & NEED_KERNEL) {	newMBKernel +
4465	/* template is multi but new is not,	strlen(prefix));
4466	* insert the kernel in the first module slot	needs &= ~NEED_MB;
4467	*/	}
4468	tmplLine->type = LT_KERNEL;	} else if (needs & NEED_KERNEL) {
4469	free(tmplLine->elements[0].item);	newLine =
4470	tmplLine->elements[0].item =	addLineTmpl(new, tmplLine, newLine,
4471	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);	newKernelPath +
4472	newLine = addLineTmpl(new, tmplLine, newLine,	strlen(prefix),
4473	newKernelPath + strlen(prefix), config->cfi);	config->cfi);
4474	needs &= ~NEED_KERNEL;	needs &= ~NEED_KERNEL;
4475	} 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_MENUENTRY &&
	(needs & NEED_TITLE)) {
	requote(tmplLine, config->cfi);
	char *nkt = malloc(strlen(newKernelTitle)+3);
	strcpy(nkt, "'");
	strcat(nkt, newKernelTitle);
	strcat(nkt, "'");
	newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi);
	free(nkt);
	needs &= ~NEED_TITLE;
	} 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 if (tmplLine->type == LT_ECHO) {
	requote(tmplLine, config->cfi);
	static const char *prefix = "'Loading ";
	if (tmplLine->numElements > 1 &&
	strstr(tmplLine->elements[1].item, prefix) &&
	masterLine->next && masterLine->next->type == LT_KERNEL) {
	char *newTitle = malloc(strlen(prefix) +
	strlen(newKernelTitle) + 2);
	strcpy(newTitle, prefix);
	strcat(newTitle, newKernelTitle);
	strcat(newTitle, "'");
	newLine = addLine(new, config->cfi, LT_ECHO,
	tmplLine->indent, newTitle);
	free(newTitle);
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL,
	config->cfi);
	}
	} else {
	/* pass through other lines from the template */
	newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi);
	}
	}
4476
4477	} else {	} else if (tmplLine->type == LT_HYPER &&
4478	/* don't have a template, so start the entry with the	tmplLine->numElements >= 2) {
4479	* appropriate starting line	if (needs & NEED_MB) {
4480	*/	newLine =
4481	switch (config->cfi->entryStart) {	addLineTmpl(new, tmplLine, newLine,
4482	case LT_KERNEL:	newMBKernel +
4483	if (new->multiboot && config->cfi->mbHyperFirst) {	strlen(prefix),
4484	/* fall through to LT_HYPER */	config->cfi);
4485	} else {	needs &= ~NEED_MB;
4486	newLine = addLine(new, config->cfi, LT_KERNEL,	}
4487	config->primaryIndent,
4488	newKernelPath + strlen(prefix));	} else if (tmplLine->type == LT_MBMODULE &&
4489	needs &= ~NEED_KERNEL;	tmplLine->numElements >= 2) {
4490	break;	if (new->multiboot) {
4491		if (needs & NEED_KERNEL) {
4492		newLine =
4493		addLineTmpl(new, tmplLine,
4494		newLine,
4495		newKernelPath +
4496		strlen(prefix),
4497		config->cfi);
4498		needs &= ~NEED_KERNEL;
4499		} else if (config->cfi->mbInitRdIsModule
4500		&& (needs & NEED_INITRD)) {
4501		char *initrdVal;
4502		initrdVal =
4503		getInitrdVal(config, prefix,
4504		tmplLine,
4505		newKernelInitrd,
4506		extraInitrds,
4507		extraInitrdCount);
4508		newLine =
4509		addLineTmpl(new, tmplLine,
4510		newLine,
4511		initrdVal,
4512		config->cfi);
4513		free(initrdVal);
4514		needs &= ~NEED_INITRD;
4515		}
4516		} else if (needs & NEED_KERNEL) {
4517		/* template is multi but new is not,
4518		* insert the kernel in the first
4519		* module slot
4520		*/
4521		tmplLine->type =
4522		preferredLineType(LT_KERNEL,
4523		config->cfi);
4524		free(tmplLine->elements[0].item);
4525		tmplLine->elements[0].item =
4526		strdup(getKeywordByType
4527		(tmplLine->type,
4528		config->cfi)->key);
4529		newLine =
4530		addLineTmpl(new, tmplLine, newLine,
4531		newKernelPath +
4532		strlen(prefix),
4533		config->cfi);
4534		needs &= ~NEED_KERNEL;
4535		} else if (needs & NEED_INITRD) {
4536		char *initrdVal;
4537		/* template is multi but new is not,
4538		* insert the initrd in the second
4539		* module slot
4540		*/
4541		tmplLine->type =
4542		preferredLineType(LT_INITRD,
4543		config->cfi);
4544		free(tmplLine->elements[0].item);
4545		tmplLine->elements[0].item =
4546		strdup(getKeywordByType
4547		(tmplLine->type,
4548		config->cfi)->key);
4549		initrdVal =
4550		getInitrdVal(config, prefix,
4551		tmplLine,
4552		newKernelInitrd,
4553		extraInitrds,
4554		extraInitrdCount);
4555		newLine =
4556		addLineTmpl(new, tmplLine, newLine,
4557		initrdVal, config->cfi);
4558		free(initrdVal);
4559		needs &= ~NEED_INITRD;
4560		}
4561
4562		} else if (isinitrd(tmplLine->type)
4563		&& tmplLine->numElements >= 2) {
4564		if (needs & NEED_INITRD && new->multiboot
4565		&& !template->multiboot
4566		&& config->cfi->mbInitRdIsModule) {
4567		/* make sure we don't insert the
4568		* module initrd before the module
4569		* kernel... if we don't do it here,
4570		* it will be inserted following the
4571		* template.
4572		*/
4573		if (!needs & NEED_KERNEL) {
4574		char *initrdVal;
4575
4576		initrdVal =
4577		getInitrdVal(config, prefix,
4578		tmplLine,
4579		newKernelInitrd,
4580		extraInitrds,
4581		extraInitrdCount);
4582		newLine =
4583		addLine(new, config->cfi,
4584		LT_MBMODULE,
4585		config->
4586		secondaryIndent,
4587		initrdVal);
4588		free(initrdVal);
4589		needs &= ~NEED_INITRD;
4590		}
4591		} else if (needs & NEED_INITRD) {
4592		char *initrdVal;
4593		initrdVal =
4594		getInitrdVal(config, prefix,
4595		tmplLine,
4596		newKernelInitrd,
4597		extraInitrds,
4598		extraInitrdCount);
4599		newLine =
4600		addLineTmpl(new, tmplLine, newLine,
4601		initrdVal, config->cfi);
4602		free(initrdVal);
4603		needs &= ~NEED_INITRD;
4604		}
4605
4606		} else if (tmplLine->type == LT_MENUENTRY &&
4607		(needs & NEED_TITLE)) {
4608		requote(tmplLine, config->cfi);
4609		char *nkt = malloc(strlen(newKernelTitle) + 3);
4610		strcpy(nkt, "'");
4611		strcat(nkt, newKernelTitle);
4612		strcat(nkt, "'");
4613		newLine =
4614		addLineTmpl(new, tmplLine, newLine, nkt,
4615		config->cfi);
4616		free(nkt);
4617		needs &= ~NEED_TITLE;
4618		} else if (tmplLine->type == LT_TITLE &&
4619		(needs & NEED_TITLE)) {
4620		if (tmplLine->numElements >= 2) {
4621		newLine =
4622		addLineTmpl(new, tmplLine, newLine,
4623		newKernelTitle,
4624		config->cfi);
4625		needs &= ~NEED_TITLE;
4626		} else if (tmplLine->numElements == 1 &&
4627		config->cfi->titleBracketed) {
4628		/* addLineTmpl doesn't handle
4629		* titleBracketed */
4630		newLine =
4631		addLine(new, config->cfi, LT_TITLE,
4632		tmplLine->indent,
4633		newKernelTitle);
4634		needs &= ~NEED_TITLE;
4635		}
4636		} else if (tmplLine->type == LT_ECHO) {
4637		requote(tmplLine, config->cfi);
4638		static const char *prefix = "'Loading ";
4639		if (tmplLine->numElements > 1 &&
4640		strstr(tmplLine->elements[1].item, prefix)
4641		&& masterLine->next
4642		&& iskernel(masterLine->next->type)) {
4643		char *newTitle =
4644		malloc(strlen(prefix) +
4645		strlen(newKernelTitle) + 2);
4646
4647		strcpy(newTitle, prefix);
4648		strcat(newTitle, newKernelTitle);
4649		strcat(newTitle, "'");
4650		newLine =
4651		addLine(new, config->cfi, LT_ECHO,
4652		tmplLine->indent, newTitle);
4653		free(newTitle);
4654		} else {
4655		/* pass through other lines from the
4656		* template */
4657		newLine =
4658		addLineTmpl(new, tmplLine, newLine,
4659		NULL, config->cfi);
4660		}
4661		} else if (tmplLine->type == LT_DEVTREE &&
4662		tmplLine->numElements == 2
4663		&& newDevTreePath) {
4664		newLine =
4665		addLineTmpl(new, tmplLine, newLine,
4666		newDevTreePath + strlen(prefix),
4667		config->cfi);
4668		needs &= ~NEED_DEVTREE;
4669		} else if (tmplLine->type == LT_ENTRY_END
4670		&& needs & NEED_DEVTREE) {
4671		const char *ndtp = newDevTreePath;
4672		if (!strncmp
4673		(newDevTreePath, prefix, strlen(prefix)))
4674		ndtp += strlen(prefix);
4675		newLine = addLine(new, config->cfi, LT_DEVTREE,
4676		config->secondaryIndent,
4677		ndtp);
4678		needs &= ~NEED_DEVTREE;
4679		newLine =
4680		addLineTmpl(new, tmplLine, newLine, NULL,
4681		config->cfi);
4682		} else {
4683		/* pass through other lines from the template */
4684		newLine =
4685		addLineTmpl(new, tmplLine, newLine, NULL,
4686		config->cfi);
4687		}
4688	}	}
4689
4690	case LT_HYPER:	} else {
4691	newLine = addLine(new, config->cfi, LT_HYPER,	/* don't have a template, so start the entry with the
4692	config->primaryIndent,	* appropriate starting line
4693	newMBKernel + strlen(prefix));	*/
4694	needs &= ~NEED_MB;	switch (config->cfi->entryStart) {
4695	break;	case LT_KERNEL:
4696		case LT_KERNEL_EFI:
4697		case LT_KERNEL_16:
4698		if (new->multiboot && config->cfi->mbHyperFirst) {
4699		/* fall through to LT_HYPER */
4700		} else {
4701		newLine = addLine(new, config->cfi,
4702		preferredLineType(LT_KERNEL,
4703		config->
4704		cfi),
4705		config->primaryIndent,
4706		newKernelPath +
4707		strlen(prefix));
4708		needs &= ~NEED_KERNEL;
4709		break;
4710		}
4711
4712	case LT_MENUENTRY: {	case LT_HYPER:
4713	char *nkt = malloc(strlen(newKernelTitle)+3);	newLine = addLine(new, config->cfi, LT_HYPER,
4714	strcpy(nkt, "'");	config->primaryIndent,
4715	strcat(nkt, newKernelTitle);	newMBKernel + strlen(prefix));
4716	strcat(nkt, "'");	needs &= ~NEED_MB;
4717	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
4718	config->primaryIndent, nkt);
4719	free(nkt);	case LT_MENUENTRY:{
4720	needs &= ~NEED_TITLE;	char *nkt = malloc(strlen(newKernelTitle) + 3);
4721	needs |= NEED_END;	strcpy(nkt, "'");
4722	break;	strcat(nkt, newKernelTitle);
4723	}	strcat(nkt, "'");
4724	case LT_TITLE:	newLine =
4725	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	addLine(new, config->cfi, LT_MENUENTRY,
4726	char * templabel;	config->primaryIndent, nkt);
4727	int x = 0, y = 0;	free(nkt);
4728		needs &= ~NEED_TITLE;
4729	templabel = strdup(newKernelTitle);	needs |= NEED_END;
4730	while( templabel[x]){	break;
4731	if( templabel[x] == ' ' ){	}
4732	y = x;	case LT_TITLE:
4733	while( templabel[y] ){	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4734	templabel[y] = templabel[y+1];	char *templabel;
4735	y++;	int x = 0, y = 0;
4736
4737		templabel = strdup(newKernelTitle);
4738		while (templabel[x]) {
4739		if (templabel[x] == ' ') {
4740		y = x;
4741		while (templabel[y]) {
4742		templabel[y] =
4743		templabel[y + 1];
4744		y++;
4745		}
4746	}	}
4747		x++;
4748	}	}
4749	x++;	newLine = addLine(new, config->cfi, LT_TITLE,
4750		config->primaryIndent,
4751		templabel);
4752		free(templabel);
4753		} else {
4754		newLine = addLine(new, config->cfi, LT_TITLE,
4755		config->primaryIndent,
4756		newKernelTitle);
4757	}	}
4758	newLine = addLine(new, config->cfi, LT_TITLE,	needs &= ~NEED_TITLE;
4759	config->primaryIndent, templabel);	break;
4760	free(templabel);
4761	}else{	default:
4762	newLine = addLine(new, config->cfi, LT_TITLE,	abort();
	config->primaryIndent, newKernelTitle);
4763	}	}
4764	needs &= ~NEED_TITLE;	}
	break;
4765
4766	default:	struct singleLine *endLine = NULL;
4767	abort();	endLine = getLineByType(LT_ENTRY_END, new->lines);
4768		if (endLine) {
4769		removeLine(new, endLine);
4770		needs |= NEED_END;
4771	}	}
	}
4772
4773	/* add the remainder of the lines, i.e. those that either	/* add the remainder of the lines, i.e. those that either
4774	* weren't present in the template, or in the case of no template,	* weren't present in the template, or in the case of no template,
4775	* all the lines following the entryStart.	* all the lines following the entryStart.
4776	*/	*/
4777	if (needs & NEED_TITLE) {	if (needs & NEED_TITLE) {
4778	newLine = addLine(new, config->cfi, LT_TITLE,	newLine = addLine(new, config->cfi, LT_TITLE,
4779	config->secondaryIndent,	config->secondaryIndent, newKernelTitle);
4780	newKernelTitle);	needs &= ~NEED_TITLE;
4781	needs &= ~NEED_TITLE;	}
4782	}	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4783	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {	newLine = addLine(new, config->cfi, LT_HYPER,
4784	newLine = addLine(new, config->cfi, LT_HYPER,	config->secondaryIndent,
4785	config->secondaryIndent,	newMBKernel + strlen(prefix));
4786	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4787	needs &= ~NEED_MB;	}
4788	}	if (needs & NEED_KERNEL) {
4789	if (needs & NEED_KERNEL) {	newLine = addLine(new, config->cfi,
4790	newLine = addLine(new, config->cfi,	(new->multiboot
4791	(new->multiboot && getKeywordByType(LT_MBMODULE,	&& getKeywordByType(LT_MBMODULE,
4792	config->cfi)) ?	config->cfi))
4793	LT_MBMODULE : LT_KERNEL,	? LT_MBMODULE : preferredLineType(LT_KERNEL,
4794	config->secondaryIndent,	config->
4795	newKernelPath + strlen(prefix));	cfi),
4796	needs &= ~NEED_KERNEL;	config->secondaryIndent,
4797	}	newKernelPath + strlen(prefix));
4798	if (needs & NEED_MB) {	needs &= ~NEED_KERNEL;
4799	newLine = addLine(new, config->cfi, LT_HYPER,	}
4800	config->secondaryIndent,	if (needs & NEED_MB) {
4801	newMBKernel + strlen(prefix));	newLine = addLine(new, config->cfi, LT_HYPER,
4802	needs &= ~NEED_MB;	config->secondaryIndent,
4803	}	newMBKernel + strlen(prefix));
4804	if (needs & NEED_INITRD) {	needs &= ~NEED_MB;
4805	char *initrdVal;	}
4806	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);	if (needs & NEED_INITRD) {
4807	newLine = addLine(new, config->cfi,	char *initrdVal;
4808	(new->multiboot && getKeywordByType(LT_MBMODULE,	initrdVal =
4809	config->cfi)) ?	getInitrdVal(config, prefix, NULL, newKernelInitrd,
4810	LT_MBMODULE : LT_INITRD,	extraInitrds, extraInitrdCount);
4811	config->secondaryIndent,	newLine =
4812	initrdVal);	addLine(new, config->cfi,
4813	free(initrdVal);	(new->multiboot
4814	needs &= ~NEED_INITRD;	&& getKeywordByType(LT_MBMODULE, config->cfi))
4815	}	? LT_MBMODULE : preferredLineType(LT_INITRD,
4816	if (needs & NEED_END) {	config->cfi),
4817	newLine = addLine(new, config->cfi, LT_ENTRY_END,	config->secondaryIndent, initrdVal);
4818	config->secondaryIndent, NULL);	free(initrdVal);
4819	needs &= ~NEED_END;	needs &= ~NEED_INITRD;
4820	}	}
4821		if (needs & NEED_DEVTREE) {
4822		newLine = addLine(new, config->cfi, LT_DEVTREE,
4823		config->secondaryIndent, newDevTreePath);
4824		needs &= ~NEED_DEVTREE;
4825		}
4826
4827		/* NEEDS_END must be last on bootloaders that need it... */
4828		if (needs & NEED_END) {
4829		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4830		config->secondaryIndent, NULL);
4831		needs &= ~NEED_END;
4832		}
4833
4834	if (needs) {	if (needs) {
4835	printf(_("grubby: needs=%d, aborting\n"), needs);	printf(_("grubby: needs=%d, aborting\n"), needs);
4836	abort();	abort();
4837	}	}
4838
4839	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4840	newMBKernelArgs, NULL)) return 1;	newMBKernelArgs, NULL)) {
4841		config->isModified = 1;
4842		return 1;
4843		}
4844
4845	return 0;	return 0;
4846	}	}
4847
4848	static void traceback(int signum)	int main(int argc, const char **argv)
4849	{	{
4850	void *array[40];	poptContext optCon;
4851	size_t size;	const char *grubConfig = NULL;
4852		char *outputFile = NULL;
4853	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4854	memset(array, '\0', sizeof (array));	int flags = 0;
4855	size = backtrace(array, 40);	int badImageOkay = 0;
4856		int configureGrub2 = 0;
4857	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4858	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4859	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4860	exit(1);	int bootloaderProbe = 0;
4861	}	int extraInitrdCount = 0;
4862		char *updateKernelPath = NULL;
4863	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4864	poptContext optCon;	char *removeKernelPath = NULL;
4865	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4866	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4867	int arg = 0;	char *newKernelTitle = NULL;
4868	int flags = 0;	char *newDevTreePath = NULL;
4869	int badImageOkay = 0;	char *newMBKernel = NULL;
4870	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4871	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	int newIndex = 0;
4872	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernelArgs = NULL;
4873	int configureExtLinux = 0;	char *removeMBKernel = NULL;
4874	int bootloaderProbe = 0;	char *bootPrefix = NULL;
4875	int extraInitrdCount = 0;	char *defaultKernel = NULL;
4876	char * updateKernelPath = NULL;	char *removeArgs = NULL;
4877	char * newKernelPath = NULL;	char *kernelInfo = NULL;
4878	char * removeKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4879	char * newKernelArgs = NULL;	char *envPath = NULL;
4880	char * newKernelInitrd = NULL;	const char *chptr = NULL;
4881	char * newKernelTitle = NULL;	struct configFileInfo *cfi = NULL;
4882	char * newKernelVersion = NULL;	struct grubConfig *config;
4883	char * newMBKernel = NULL;	struct singleEntry *template = NULL;
4884	char * newMBKernelArgs = NULL;	int copyDefault = 0, makeDefault = 0;
4885	char * removeMBKernelArgs = NULL;	int displayDefault = 0;
4886	char * removeMBKernel = NULL;	int displayDefaultIndex = 0;
4887	char * bootPrefix = NULL;	int displayDefaultTitle = 0;
4888	char * defaultKernel = NULL;	int defaultIndex = -1;
4889	char * removeArgs = NULL;	struct poptOption options[] = {
4890	char * kernelInfo = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4891	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	_("add an entry for the specified kernel"), _("kernel-path")},
4892	const char * chptr = NULL;	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4893	struct configFileInfo * cfi = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4894	struct grubConfig * config;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4895	struct singleEntry * template = NULL;	_("default arguments for the new kernel or new arguments for "
4896	int copyDefault = 0, makeDefault = 0;	"kernel being updated"), _("args")},
4897	int displayDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4898	int displayDefaultIndex = 0;	_("default arguments for the new multiboot kernel or "
4899	int displayDefaultTitle = 0;	"new arguments for multiboot kernel being updated"), NULL},
4900	struct poptOption options[] = {	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4901	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	_
4902	_("add an entry for the specified kernel"), _("kernel-path") },	("don't sanity check images in boot entries (for testing only)"),
4903	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	NULL},
4904	_("add an entry for the specified multiboot kernel"), NULL },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4905	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	_
4906	_("default arguments for the new kernel or new arguments for "	("filesystem which contains /boot directory (for testing only)"),
4907	"kernel being updated"), _("args") },	_("bootfs")},
4908	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4909	_("default arguments for the new multiboot kernel or "	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4910	"new arguments for multiboot kernel being updated"), NULL },	_("check which bootloader is installed on boot sector")},
	{ "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") },
4911	#endif	#endif
4912	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4913	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4914	_("path") },	_("path")},
4915	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4916	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4917	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4918	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4919	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4920	"template"), NULL },	"template"), NULL},
4921	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4922	_("print debugging information for failures") },	_("print debugging information for failures")},
4923	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4924	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4925	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4926	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4927	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4928	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4929	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4930	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4931	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4932	_("configure extlinux bootloader (from syslinux)") },	_("device tree directory for new stanza"), _("dtb-path")},
4933	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4934	_("configure grub bootloader") },	_("configure elilo bootloader")},
4935	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4936	_("configure grub2 bootloader") },	_("force grub2 stanzas to use efi")},
4937	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4938	_("display boot information for specified kernel"),	_("path for environment data"),
4939	_("kernel-path") },	_("path")},
4940	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4941	_("initrd image for the new kernel"), _("initrd-path") },	_("configure extlinux bootloader (from syslinux)")},
4942	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4943	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	_("configure grub bootloader")},
4944	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4945	_("configure lilo bootloader") },	_("configure grub2 bootloader")},
4946	{ "make-default", 0, 0, &makeDefault, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4947	_("make the newly added entry the default boot entry"), NULL },	_("display boot information for specified kernel"),
4948	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("kernel-path")},
4949	_("path to output updated config file (\"-\" for stdout)"),	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4950	_("path") },	_("initrd image for the new kernel"), _("initrd-path")},
4951	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4952	_("remove kernel arguments"), NULL },	_
4953	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	("auxiliary initrd image for things other than the new kernel"),
4954	_("remove multiboot kernel arguments"), NULL },	_("initrd-path")},
4955	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4956	_("remove all entries for the specified kernel"),	_("configure lilo bootloader")},
4957	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4958	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("make the newly added entry the default boot entry"), NULL},
4959	_("remove all entries for the specified multiboot kernel"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4960	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("path to output updated config file (\"-\" for stdout)"),
4961	_("make the first entry referencing the specified kernel "	_("path")},
4962	"the default"), _("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4963	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	_("remove kernel arguments"), NULL},
4964	_("configure silo bootloader") },	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4965	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("remove multiboot kernel arguments"), NULL},
4966	_("title to use for the new kernel entry"), _("entry-title") },	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4967	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	_("remove all entries for the specified kernel"),
4968	_("updated information for the specified kernel"),	_("kernel-path")},
4969	_("kernel-path") },	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4970	{ "version", 'v', 0, NULL, 'v',	_("remove all entries for the specified multiboot kernel"),
4971	_("print the version of this program and exit"), NULL },	NULL},
4972	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4973	_("configure yaboot bootloader") },	_("make the first entry referencing the specified kernel "
4974	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	"the default"), _("kernel-path")},
4975	_("configure zipl bootloader") },	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4976	POPT_AUTOHELP	_("make the given entry index the default entry"),
4977	{ 0, 0, 0, 0, 0 }	_("entry-index")},
4978	};	{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4979		_("use the given index when creating a new entry"),
4980	useextlinuxmenu=0;	_("entry-index")},
4981		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4982	signal(SIGSEGV, traceback);	_("configure silo bootloader")},
4983		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4984	optCon = poptGetContext("grubby", argc, argv, options, 0);	_("title to use for the new kernel entry"), _("entry-title")},
4985	poptReadDefaultConfig(optCon, 1);	{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4986		_("updated information for the specified kernel"),
4987	while ((arg = poptGetNextOpt(optCon)) >= 0) {	_("kernel-path")},
4988	switch (arg) {	{"version", 'v', 0, NULL, 'v',
4989	case 'v':	_("print the version of this program and exit"), NULL},
4990	printf("grubby version %s\n", VERSION);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4991	exit(0);	_("configure yaboot bootloader")},
4992	break;	{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4993	case 'i':	_("configure zipl bootloader")},
4994	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	POPT_AUTOHELP {0, 0, 0, 0, 0}
4995	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	};
4996	} else {
4997	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	useextlinuxmenu = 0;
4998	return 1;
4999	}	int i = 0;
5000	break;	for (int j = 1; j < argc; j++)
5001		i += strlen(argv[j]) + 1;
5002		saved_command_line = malloc(i);
5003		if (!saved_command_line) {
5004		fprintf(stderr, "grubby: %m\n");
5005		exit(1);
5006		}
5007		saved_command_line[0] = '\0';
5008		for (int j = 1; j < argc; j++) {
5009		strcat(saved_command_line, argv[j]);
5010		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
5011		}
5012
5013		optCon = poptGetContext("grubby", argc, argv, options, 0);
5014		poptReadDefaultConfig(optCon, 1);
5015
5016		while ((arg = poptGetNextOpt(optCon)) >= 0) {
5017		switch (arg) {
5018		case 'v':
5019		printf("grubby version %s\n", VERSION);
5020		exit(0);
5021		break;
5022		case 'i':
5023		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
5024		extraInitrds[extraInitrdCount++] =
5025		strdup(poptGetOptArg(optCon));
5026		} else {
5027		fprintf(stderr,
5028		_
5029		("grubby: extra initrd maximum is %d\n"),
5030		extraInitrdCount);
5031		return 1;
5032		}
5033		break;
5034		}
5035	}	}
	}
	if (arg < -1) {
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
5036
5037	if ((chptr = poptGetArg(optCon))) {	if (arg < -1) {
5038	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
5039	return 1;	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
5040	}	poptStrerror(arg));
5041		return 1;
5042		}
5043
5044	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
5045	configureYaboot + configureSilo + configureZipl +	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
5046	configureExtLinux ) > 1) {	return 1;
5047	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));	}
	return 1;
	} else if (bootloaderProbe && grubConfig) {
	fprintf(stderr,
	_("grubby: cannot specify config file with --bootloader-probe\n"));
	return 1;
	} else if (configureGrub2) {
	cfi = &grub2ConfigType;
	} 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;
	}
5048
5049	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5050	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
5051	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
5052	else	fprintf(stderr,
5053	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
5054	cfi = &eliloConfigType;	return 1;
5055	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
5056	cfi = &yabootConfigType;	fprintf(stderr,
5057	#elif __sparc__	_
5058	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
5059	#elif __s390__	return 1;
5060	cfi = &ziplConfigType;	} else if (configureGrub2) {
5061	#elif __s390x__	cfi = &grub2ConfigType;
5062	cfi = &ziplConfigtype;	if (envPath)
5063	#else	cfi->envFile = envPath;
5064	cfi = &grubConfigType;	} else if (configureLilo) {
5065	#endif	cfi = &liloConfigType;
5066	}	} else if (configureGrub) {
5067		cfi = &grubConfigType;
5068		} else if (configureELilo) {
5069		cfi = &eliloConfigType;
5070		} else if (configureYaboot) {
5071		cfi = &yabootConfigType;
5072		} else if (configureSilo) {
5073		cfi = &siloConfigType;
5074		} else if (configureZipl) {
5075		cfi = &ziplConfigType;
5076		} else if (configureExtLinux) {
5077		cfi = &extlinuxConfigType;
5078		useextlinuxmenu = 1;
5079		}
5080
5081		if (!cfi) {
5082		if (grub2FindConfig(&grub2ConfigType)) {
5083		cfi = &grub2ConfigType;
5084		if (envPath)
5085		cfi->envFile = envPath;
5086		} else
5087		#ifdef __ia64__
5088		cfi = &eliloConfigType;
5089		#elif __powerpc__
5090		cfi = &yabootConfigType;
5091		#elif __sparc__
5092		cfi = &siloConfigType;
5093		#elif __s390__
5094		cfi = &ziplConfigType;
5095		#elif __s390x__
5096		cfi = &ziplConfigtype;
5097		#else
5098		cfi = &grubConfigType;
5099		#endif
5100		}
5101
5102	if (!grubConfig) {	if (!grubConfig) {
5103	if (cfi->findConfig)	if (cfi->findConfig)
5104	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
5105	if (!grubConfig)	if (!grubConfig)
5106	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
5107	}	}
5108
5109	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
5110	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
5111	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	|| defaultKernel || displayDefaultIndex
5112	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| displayDefaultTitle
5113		|| (defaultIndex >= 0))) {
5114		fprintf(stderr,
5115		_("grubby: --bootloader-probe may not be used with "
5116	"specified option"));	"specified option"));
5117	return 1;	return 1;
5118	}	}
5119
5120	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5121	removeKernelPath)) {	removeKernelPath)) {
5122	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5123	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5124	return 1;	return 1;
5125	}	}
5126
5127	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5128	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5129	return 1;	return 1;
5130	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5131	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5132	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5133	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5134	return 1;	return 1;
5135	}	}
5136
5137	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5138	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5139	"not be used together"));	"not be used together"));
5140	return 1;	return 1;
5141	}	}
5142
5143	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5144	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5145		"may not be used together\n"));
5146		return 1;
5147		} else if (defaultKernel && removeKernelPath &&
5148		!strcmp(defaultKernel, removeKernelPath)) {
5149		fprintf(stderr,
5150		_("grubby: cannot make removed kernel the default\n"));
5151		return 1;
5152		} else if (defaultKernel && newKernelPath &&
5153		!strcmp(defaultKernel, newKernelPath)) {
5154		makeDefault = 1;
5155		defaultKernel = NULL;
5156		} else if (defaultKernel && (defaultIndex >= 0)) {
5157		fprintf(stderr,
5158		_("grubby: --set-default and --set-default-index "
5159	"may not be used together\n"));	"may not be used together\n"));
5160	return 1;	return 1;
5161	} else if (defaultKernel && removeKernelPath &&	}
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
5162
5163	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5164	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5165	"is used\n"));	_("grubby: output file must be specified if stdin "
5166	return 1;	"is used\n"));
5167	}	return 1;
5168		}
5169
5170	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5171	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5172	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5173	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5174	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5175	}	return 1;
5176		}
5177
5178	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5179
5180	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5181	if (!bootPrefix) {	if (!bootPrefix) {
5182	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5183	if (!bootPrefix) return 1;	if (!bootPrefix)
5184	} else {	return 1;
5185	/* this shouldn't end with a / */	} else {
5186	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5187	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5188		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5189		}
5190		} else {
5191		bootPrefix = "";
5192	}	}
	} else {
	bootPrefix = "";
	}
5193
5194	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5195	extraInitrdCount > 0) {	fprintf(stderr,
5196	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5197	return 1;	cfi->defaultConfig);
5198	}	return 1;
5199		}
5200
5201	if (bootloaderProbe) {	if (bootloaderProbe) {
5202	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5203	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5204
5205	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5206	if (grub2config) {	if (grub2config) {
5207	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5208	if (!gconfig)	if (!gconfig)
5209	gr2c = 1;	gr2c = 1;
5210	else	else
5211	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5212	}	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	erc = 1;
	else
	erc = checkForExtLinux(lconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1) return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
5213
5214	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5215	}	if (!access(grubconfig, F_OK)) {
5216		gconfig = readConfig(grubconfig, &grubConfigType);
5217		if (!gconfig)
5218		grc = 1;
5219		else
5220		grc = checkForGrub(gconfig);
5221		}
5222
5223	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5224	if (!config) return 1;	lconfig =
5225		readConfig(liloConfigType.defaultConfig,
5226		&liloConfigType);
5227		if (!lconfig)
5228		lrc = 1;
5229		else
5230		lrc = checkForLilo(lconfig);
5231		}
5232
5233	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5234	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5235	struct singleEntry * entry;	&eliloConfigType);
5236	char * rootspec;	if (!econfig)
5237		erc = 1;
5238	if (config->defaultImage == -1) return 0;	else
5239	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5240	if (!entry) return 0;	}
	if (!suitableImage(entry, bootPrefix, 0, flags)) return 0;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) return 0;
	rootspec = getRootSpecifier(line->elements[1].item);
	printf("%s%s\n", bootPrefix, line->elements[1].item +
	((rootspec != NULL) ? strlen(rootspec) : 0));
5241
5242	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5243		lconfig =
5244		readConfig(extlinuxConfigType.defaultConfig,
5245		&extlinuxConfigType);
5246		if (!lconfig)
5247		extrc = 1;
5248		else
5249		extrc = checkForExtLinux(lconfig);
5250		}
5251
5252		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5253		yconfig = readConfig(yabootConfigType.defaultConfig,
5254		&yabootConfigType);
5255		if (!yconfig)
5256		yrc = 1;
5257		else
5258		yrc = checkForYaboot(yconfig);
5259		}
5260
5261		if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5262		|| erc == 1)
5263		return 1;
5264
5265		if (lrc == 2)
5266		printf("lilo\n");
5267		if (gr2c == 2)
5268		printf("grub2\n");
5269		if (grc == 2)
5270		printf("grub\n");
5271		if (extrc == 2)
5272		printf("extlinux\n");
5273		if (yrc == 2)
5274		printf("yaboot\n");
5275		if (erc == 2)
5276		printf("elilo\n");
5277
5278	} else if (displayDefaultTitle) {	return 0;
	struct singleLine * line;
	struct singleEntry * entry;
	if (config->defaultImage == -1) return 0;
	entry = findEntryByIndex(config, config->defaultImage);
	if (!entry) return 0;
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
	} else {
	char * title;
	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5279	}	}
	return 0;
5280
5281	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5282	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5283	printf("%i\n", config->defaultImage);	exit(1);
5284		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5285
5286	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5287	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5288	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5289	bootPrefix, flags);
5290	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5291	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5292	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5293	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5294	if (updateInitrd(config, updateKernelPath, bootPrefix,
5295	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5296	}	return 0;
5297	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5298	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5299	(const char **)extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5300	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5301		if (!entry)
5302		return 0;
5303	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5304	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5305	"Not writing out new config.\n"));
5306	return 1;	line =
5307	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5308		LT_KERNEL_16, entry->lines);
5309		if (!line)
5310		return 0;
5311
5312		rootspec = getRootSpecifier(line->elements[1].item);
5313		printf("%s%s\n", bootPrefix, line->elements[1].item +
5314		((rootspec != NULL) ? strlen(rootspec) : 0));
5315
5316		return 0;
5317
5318		} else if (displayDefaultTitle) {
5319		struct singleLine *line;
5320		struct singleEntry *entry;
5321
5322		if (config->defaultImage == NO_DEFAULT_ENTRY)
5323		return 0;
5324		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5325		cfi->defaultIsSaved)
5326		config->defaultImage = FIRST_ENTRY_INDEX;
5327		entry = findEntryByIndex(config, config->defaultImage);
5328		if (!entry)
5329		return 0;
5330
5331		if (!configureGrub2) {
5332		char *title;
5333		line = getLineByType(LT_TITLE, entry->lines);
5334		if (!line)
5335		return 0;
5336		title = extractTitle(config, line);
5337		if (!title)
5338		return 0;
5339		printf("%s\n", title);
5340		free(title);
5341		} else {
5342		char *title;
5343
5344		dbgPrintf
5345		("This is GRUB2, default title is embeded in menuentry\n");
5346		line = getLineByType(LT_MENUENTRY, entry->lines);
5347		if (!line)
5348		return 0;
5349		title = grub2ExtractTitle(line);
5350		if (title)
5351		printf("%s\n", title);
5352		}
5353		return 0;
5354
5355		} else if (displayDefaultIndex) {
5356		if (config->defaultImage == NO_DEFAULT_ENTRY)
5357		return 0;
5358		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5359		cfi->defaultIsSaved)
5360		config->defaultImage = FIRST_ENTRY_INDEX;
5361		printf("%i\n", config->defaultImage);
5362		return 0;
5363
5364		} else if (kernelInfo)
5365		return displayInfo(config, kernelInfo, bootPrefix);
5366
5367		if (copyDefault) {
5368		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5369		if (!template)
5370		return 1;
5371		}
5372
5373		markRemovedImage(config, removeKernelPath, bootPrefix);
5374		markRemovedImage(config, removeMBKernel, bootPrefix);
5375		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5376		makeDefault, bootPrefix, flags, defaultIndex,
5377		newIndex);
5378		setFallbackImage(config, newKernelPath != NULL);
5379		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5380		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5381		return 1;
5382		if (updateKernelPath && newKernelInitrd) {
5383		if (newMBKernel) {
5384		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5385		bootPrefix, newKernelInitrd,
5386		newKernelTitle))
5387		return 1;
5388		} else {
5389		if (updateInitrd(config, updateKernelPath, bootPrefix,
5390		newKernelInitrd, newKernelTitle))
5391		return 1;
5392		}
5393		}
5394		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5395		newKernelTitle, newKernelArgs, newKernelInitrd,
5396		(const char **)extraInitrds, extraInitrdCount,
5397		newMBKernel, newMBKernelArgs, newDevTreePath,
5398		newIndex))
5399		return 1;
5400
5401		if (numEntries(config) == 0) {
5402		fprintf(stderr,
5403		_("grubby: doing this would leave no kernel entries. "
5404		"Not writing out new config.\n"));
5405		return 1;
5406		}
5407
5408	if (!outputFile)	if (!outputFile)
5409	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5410
5411	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5412	}	}

---

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Legend: Removed from v.1850   changed lines   Added in v.3029