Diff of /trunk/grubby/grubby.c

Parent Directory | Revision Log | Patch

	revision 1931 by niro, Mon Oct 1 12:06:26 2012 UTC	revision 3003 by niro, Tue Jun 27 14:14:00 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 DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
136	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
137
138	struct keywordTypes {	struct keywordTypes {
139	char * key;	char *key;
140	enum lineType_e type;	enum lineType_e type;
141	char nextChar;	char nextChar;
142	char separatorChar;	char separatorChar;
143	};	};
144
145	struct configFileInfo;	struct configFileInfo;
146
147	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
148	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
149	struct singleLine *line);	struct singleLine * line);
150		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
151		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
152
153	struct configFileInfo {	struct configFileInfo {
154	char * defaultConfig;	char *defaultConfig;
155	findConfigFunc findConfig;	findConfigFunc findConfig;
156	writeLineFunc writeLine;	writeLineFunc writeLine;
157	struct keywordTypes * keywords;	getEnvFunc getEnv;
158	int defaultIsIndex;	setEnvFunc setEnv;
159	int defaultIsVariable;	struct keywordTypes *keywords;
160	int defaultSupportSaved;	int caseInsensitive;
161	enum lineType_e entryStart;	int defaultIsIndex;
162	enum lineType_e entryEnd;	int defaultIsVariable;
163	int needsBootPrefix;	int defaultSupportSaved;
164	int argsInQuotes;	int defaultIsSaved;
165	int maxTitleLength;	int defaultIsUnquoted;
166	int titleBracketed;	enum lineType_e entryStart;
167	int titlePosition;	enum lineType_e entryEnd;
168	int mbHyperFirst;	int needsBootPrefix;
169	int mbInitRdIsModule;	int argsInQuotes;
170	int mbConcatArgs;	int maxTitleLength;
171	int mbAllowExtraInitRds;	int titleBracketed;
172		int titlePosition;
173		int mbHyperFirst;
174		int mbInitRdIsModule;
175		int mbConcatArgs;
176		int mbAllowExtraInitRds;
177		char *envFile;
178	};	};
179
180	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
181	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
182	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
183	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
184	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
185	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
186	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
187	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
188	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
189	{ NULL,    0, 0 },	{NULL, 0, 0},
190	};	};
191
192	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
193	static const char *configFiles[] = {	{
194	"/boot/grub/grub.conf",	static const char *configFiles[] = {
195	"/boot/grub/menu.lst",	"/boot/grub/grub.conf",
196	"/etc/grub.conf",	"/boot/grub/menu.lst",
197	NULL	"/etc/grub.conf",
198	};	NULL
199	static int i = -1;	};
200		static int i = -1;
201	if (i == -1) {
202	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
203	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
204	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
205	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
206	return configFiles[i];	dbgPrintf("found\n");
207	}	return configFiles[i];
208	dbgPrintf("not found\n");	}
209		dbgPrintf("not found\n");
210		}
211	}	}
212	}	return configFiles[i];
	return configFiles[i];
213	}	}
214
215	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
216	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
217	.keywords = grubKeywords,	.keywords = grubKeywords,
218	.defaultIsIndex = 1,	.defaultIsIndex = 1,
219	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
220	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
221	.needsBootPrefix = 1,	.needsBootPrefix = 1,
222	.mbHyperFirst = 1,	.mbHyperFirst = 1,
223	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
224	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
225		.titlePosition = 1,
226	};	};
227
228	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
229	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
230	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
231	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
232	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
233	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
234	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
235	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
236	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
237	{ "linuxefi",   LT_KERNEL,      ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
238	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linux16", LT_KERNEL_16, ' '},
239	{ "initrdefi",  LT_INITRD,      ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
240	{ "module",     LT_MBMODULE,    ' ' },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
241	{ "kernel",     LT_HYPER,       ' ' },	{"initrd16", LT_INITRD_16, ' ', ' '},
242	{ NULL, 0, 0 },	{"module", LT_MBMODULE, ' '},
243		{"kernel", LT_HYPER, ' '},
244		{"devicetree", LT_DEVTREE, ' '},
245		{NULL, 0, 0},
246	};	};
247
248	const char *grub2FindConfig(struct configFileInfo *cfi) {	const char *grub2FindConfig(struct configFileInfo *cfi)
249	static const char *configFiles[] = {	{
250	"/boot/grub/grub-efi.cfg",	static const char *configFiles[] = {
251	"/boot/grub/grub.cfg",	"/boot/grub/grub-efi.cfg",
252	NULL	"/boot/grub/grub.cfg",
253	};	"/etc/grub2-efi.cfg",
254	static int i = -1;	"/etc/grub2.cfg",
255	static const char *grub_cfg = "/boot/grub/grub.cfg";	"/boot/grub2/grub.cfg",
256		"/boot/grub2-efi/grub.cfg",
257	if (i == -1) {	NULL
258	for (i = 0; configFiles[i] != NULL; i++) {	};
259	dbgPrintf("Checking \"%s\": ", configFiles[i]);	static int i = -1;
260	if (!access(configFiles[i], R_OK)) {	static const char *grub_cfg = "/boot/grub/grub.cfg";
261		int rc = -1;
262
263		if (i == -1) {
264		for (i = 0; configFiles[i] != NULL; i++) {
265		dbgPrintf("Checking \"%s\": ", configFiles[i]);
266		if ((rc = access(configFiles[i], R_OK))) {
267		if (errno == EACCES) {
268		printf
269		("Unable to access bootloader configuration file "
270		"\"%s\": %m\n", configFiles[i]);
271		exit(1);
272		}
273		continue;
274		} else {
275		dbgPrintf("found\n");
276		return configFiles[i];
277		}
278		}
279		}
280
281		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
282		* that isn't in grub1, and if it exists, return the config file path
283		* that they use. */
284		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
285	dbgPrintf("found\n");	dbgPrintf("found\n");
286	return configFiles[i];	return grub_cfg;
	}
287	}	}
	}
288
289	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
290	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
291	* that they use. */	}
292	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
293	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
294	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
295	}	{
296		static char buf[1025];
297		char *s = NULL;
298		char *ret = NULL;
299		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
300		int rc =
301		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
302
303		if (rc < 0)
304		return NULL;
305
306		FILE *f = popen(s, "r");
307		if (!f)
308		goto out;
309
310		memset(buf, '\0', sizeof(buf));
311		ret = fgets(buf, 1024, f);
312		pclose(f);
313
314		if (ret) {
315		ret += strlen(name) + 1;
316		ret[strlen(ret) - 1] = '\0';
317		}
318		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
319		out:
320		free(s);
321		return ret;
322		}
323
324		static int sPopCount(const char *s, const char *c)
325		{
326		int ret = 0;
327		if (!s)
328		return -1;
329		for (int i = 0; s[i] != '\0'; i++)
330		for (int j = 0; c[j] != '\0'; j++)
331		if (s[i] == c[j])
332		ret++;
333		return ret;
334		}
335
336		static char *shellEscape(const char *s)
337		{
338		int l = strlen(s) + sPopCount(s, "'") * 2;
339
340		char *ret = calloc(l + 1, sizeof(*ret));
341		if (!ret)
342		return NULL;
343		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
344		if (s[i] == '\'')
345		ret[j++] = '\\';
346		ret[j] = s[i];
347		}
348		return ret;
349		}
350
351		static void unquote(char *s)
352		{
353		int l = strlen(s);
354
355		if ((s[l - 1] == '\'' && s[0] == '\'')
356		|| (s[l - 1] == '"' && s[0] == '"')) {
357		memmove(s, s + 1, l - 2);
358		s[l - 2] = '\0';
359		}
360		}
361
362	dbgPrintf("not found\n");	static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
363	return configFiles[i];	{
364		char *s = NULL;
365		int rc = 0;
366		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
367
368		unquote(value);
369		value = shellEscape(value);
370		if (!value)
371		return -1;
372
373		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
374		free(value);
375		if (rc < 0)
376		return -1;
377
378		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
379		rc = system(s);
380		free(s);
381		return rc;
382		}
383
384		/* this is a gigantic hack to avoid clobbering grub2 variables... */
385		static int is_special_grub2_variable(const char *name)
386		{
387		if (!strcmp(name, "\"${next_entry}\""))
388		return 1;
389		if (!strcmp(name, "\"${prev_saved_entry}\""))
390		return 1;
391		return 0;
392	}	}
393
394	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
395	int count = 0;	{
396		int count = 0;
397
398	for (int i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
399	int indentSize = 0;	int indentSize = 0;
400
401	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
402
403	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
404	if (indentSize > 0)	if (indentSize > 0)
405	count = count + indentSize;	count = count + indentSize;
406	else	else
407	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
408	count = count + 1;	count = count + 1;
409	}	}
410
411	/* room for trailing terminator */	/* room for trailing terminator */
412	count = count + 1;	count = count + 1;
413
414	return count;	return count;
415	}	}
416
417	static int isquote(char q)	static int isquote(char q)
418	{	{
419	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
420	return 1;	return 1;
421	return 0;	return 0;
422	}	}
423
424	char *grub2ExtractTitle(struct singleLine * line) {	static int iskernel(enum lineType_e type)
425	char * current;	{
426	char * current_indent;	return (type == LT_KERNEL || type == LT_KERNEL_EFI
427	int current_len;	|| type == LT_KERNEL_16);
428	int current_indent_len;	}
429	int i;
430		static int isinitrd(enum lineType_e type)
431	/* bail out if line does not start with menuentry */	{
432	if (strcmp(line->elements[0].item, "menuentry"))	return (type == LT_INITRD || type == LT_INITRD_EFI
433	return NULL;	|| type == LT_INITRD_16);
434		}
	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;
	}
435
436	/* if no quotes, return second word verbatim */	char *grub2ExtractTitle(struct singleLine *line)
437	if (!isquote(*current))	{
438	return current;	char *current;
439		char *current_indent;
440	/* second element start with a quote, so we have to find the element	int current_len;
441	* whose last character is also quote (assuming it's the closing one) */	int current_indent_len;
442	int resultMaxSize;	int i;
443	char * result;
444		/* bail out if line does not start with menuentry */
445	resultMaxSize = sizeOfSingleLine(line);	if (strcmp(line->elements[0].item, "menuentry"))
446	result = malloc(resultMaxSize);	return NULL;
447	snprintf(result, resultMaxSize, "%s", ++current);
448		i = 1;
	i++;
	for (; i < line->numElements; ++i) {
449	current = line->elements[i].item;	current = line->elements[i].item;
450	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
451
452	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
453	if (!isquote(current[current_len-1])) {	if (isquote(*current) && isquote(current[current_len - 1])) {
454	strncat(result, current, current_len);	char *tmp;
455	} else {
456	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
457	break;	if (!tmp)
458		return NULL;
459		tmp[strlen(tmp) - 1] = '\0';
460		return tmp;
461		}
462
463		/* if no quotes, return second word verbatim */
464		if (!isquote(*current))
465		return current;
466
467		/* second element start with a quote, so we have to find the element
468		* whose last character is also quote (assuming it's the closing one) */
469		int resultMaxSize;
470		char *result;
471		/* need to ensure that ' does not match " as we search */
472		char quote_char = *current;
473
474		resultMaxSize = sizeOfSingleLine(line);
475		result = malloc(resultMaxSize);
476		snprintf(result, resultMaxSize, "%s", ++current);
477
478		i++;
479		for (; i < line->numElements; ++i) {
480		current = line->elements[i].item;
481		current_len = strlen(current);
482		current_indent = line->elements[i].indent;
483		current_indent_len = strlen(current_indent);
484
485		strncat(result, current_indent, current_indent_len);
486		if (current[current_len - 1] != quote_char) {
487		strncat(result, current, current_len);
488		} else {
489		strncat(result, current, current_len - 1);
490		break;
491		}
492	}	}
493	}	return result;
	return result;
494	}	}
495
496	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
497	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
498	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
499	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
500	.defaultSupportSaved = 1,	.keywords = grub2Keywords,
501	.defaultIsVariable = 1,	.defaultIsIndex = 1,
502	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
503	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
504	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
505	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
506	.mbHyperFirst = 1,	.titlePosition = 1,
507	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
508	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
509		.mbInitRdIsModule = 1,
510		.mbAllowExtraInitRds = 1,
511	};	};
512
513	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
514	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
515	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
516	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
517	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
518	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
519	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
520	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
521	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
522	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
523	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
524	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
525	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
526	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
527	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
528	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
529	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
530	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
531	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
532	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
533	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
534	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
535	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
536	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
539	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
540	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
541	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
542	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
543	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
544	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
545	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
546	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
547	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
548	{ NULL,    0, 0 },	{NULL, 0, 0},
549	};	};
550
551	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
552	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
553	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
554	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
555	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
556	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
557	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
558	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
559	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
560	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
561	{ NULL,    0, 0 },	{NULL, 0, 0},
562	};	};
563
564	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
565	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
566	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
567	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
568	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
569	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
570	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
571	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
572	{ NULL,    0, 0 },	{NULL, 0, 0},
573	};	};
574
575	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
576	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
577	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
578	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
579	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
580	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
581	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
582	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
583	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
584	{ NULL,    0, 0 },	{NULL, 0, 0},
585	};	};
586
587	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
588	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
589	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
590	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
591	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
592	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
593	{ NULL,         0, 0 },	{NULL, 0, 0},
594	};	};
595
596	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
597	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
598	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
599	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
600	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
601	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
602	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
603	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
604	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
605		{"fdtdir", LT_DEVTREE, ' '},
606		{NULL, 0, 0},
607	};	};
608
609	int useextlinuxmenu;	int useextlinuxmenu;
610	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
611	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
612	.keywords = eliloKeywords,	.keywords = eliloKeywords,
613	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
614	.needsBootPrefix = 1,	.needsBootPrefix = 1,
615	.argsInQuotes = 1,	.argsInQuotes = 1,
616	.mbConcatArgs = 1,	.mbConcatArgs = 1,
617		.titlePosition = 1,
618	};	};
619
620	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
621	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
622	.keywords = liloKeywords,	.keywords = liloKeywords,
623	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
624	.argsInQuotes = 1,	.argsInQuotes = 1,
625	.maxTitleLength = 15,	.maxTitleLength = 15,
626		.titlePosition = 1,
627	};	};
628
629	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
630	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
631	.keywords = yabootKeywords,	.keywords = yabootKeywords,
632	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
633	.needsBootPrefix = 1,	.needsBootPrefix = 1,
634	.argsInQuotes = 1,	.argsInQuotes = 1,
635	.maxTitleLength = 15,	.maxTitleLength = 15,
636	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
637		.titlePosition = 1,
638	};	};
639
640	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
641	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
642	.keywords = siloKeywords,	.keywords = siloKeywords,
643	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
644	.needsBootPrefix = 1,	.needsBootPrefix = 1,
645	.argsInQuotes = 1,	.argsInQuotes = 1,
646	.maxTitleLength = 15,	.maxTitleLength = 15,
647		.titlePosition = 1,
648	};	};
649
650	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
651	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
652	.keywords = ziplKeywords,	.keywords = ziplKeywords,
653	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
654	.argsInQuotes = 1,	.argsInQuotes = 1,
655	.titleBracketed = 1,	.titleBracketed = 1,
656	};	};
657
658	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
659	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
660	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
661	.entryStart = LT_TITLE,	.caseInsensitive = 1,
662	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
663	.maxTitleLength = 255,	.needsBootPrefix = 1,
664	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
665		.mbAllowExtraInitRds = 1,
666		.defaultIsUnquoted = 1,
667		.titlePosition = 1,
668	};	};
669
670	struct grubConfig {	struct grubConfig {
671	struct singleLine * theLines;	struct singleLine *theLines;
672	struct singleEntry * entries;	struct singleEntry *entries;
673	char * primaryIndent;	char *primaryIndent;
674	char * secondaryIndent;	char *secondaryIndent;
675	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
676	* written out, overriding original */	* written out, overriding original */
677	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
678	int flags;	int flags;
679	struct configFileInfo * cfi;	struct configFileInfo *cfi;
680	};	};
681
682	blkid_cache blkid;	blkid_cache blkid;
683
684	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
685	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
686	const char * path, const char * prefix,	const char *path, const char *prefix,
687	int * index);	int *index);
688	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
689	static void lineInit(struct singleLine * line);	int *index);
690	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
691	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
692	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
693	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
694	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
695	struct configFileInfo * cfi);	struct configFileInfo *cfi);
696	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
697	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
698	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
699	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
700	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
701	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
702	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
703	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
704	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
705	struct configFileInfo * cfi);	struct configFileInfo *cfi);
706	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
707	struct singleLine * line);	struct configFileInfo *cfi);
708	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
709	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
710	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
711	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
712	const char * val,	struct singleLine *tmplLine,
713	struct configFileInfo * cfi);	struct singleLine *prevLine,
714	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
715	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
716	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
717	const char * val);	enum lineType_e type, char *defaultIndent,
718		const char *val);
719
720	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
721	#ifdef __GNUC__	#ifdef __GNUC__
722	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
723	#else	#else
724	;	;
725	#endif	#endif
726
727	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
728	char *buf = NULL;	{
729	char c;	char *buf = NULL;
730	va_list args;	char c;
731	size_t size = 0;	va_list args;
732	va_start(args, format);	size_t size = 0;
733		va_start(args, format);
734	/* XXX requires C99 vsnprintf behavior */
735	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
736	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
737	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
738	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
739	}	abort();
740		}
741
742	va_end(args);	va_end(args);
743	va_start(args, format);	va_start(args, format);
744
745	buf = malloc(size);	buf = malloc(size);
746	if (buf == NULL)	if (buf == NULL)
747	return NULL;	return NULL;
748	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
749	va_end (args);	va_end(args);
750
751	return buf;	return buf;
752	}	}
753
754	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
755	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
756	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	{
757	if (kw->type == type)	int kwl = strlen(kw->key);
758	return kw;	int ll = strlen(label);
759		int rc;
760		int (*snc)(const char *s1, const char *s2, size_t n) =
761		case_insensitive ? strncasecmp : strncmp;
762		int (*sc)(const char *s1, const char *s2) =
763		case_insensitive ? strcasecmp : strcmp;
764
765		rc = snc(kw->key, label, kwl);
766		if (rc)
767		return rc;
768
769		for (int i = kwl; i < ll; i++) {
770		if (isspace(label[i]))
771		return 0;
772		if (kw->separatorChar && label[i] == kw->separatorChar)
773		return 0;
774		else if (kw->nextChar && label[i] == kw->nextChar)
775		return 0;
776		return sc(kw->key+kwl, label+kwl);
777	}	}
778	return NULL;	return 0;
779	}	}
780
781	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
782	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
783	if (kt)	{
784	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
785	return "unknown";	switch (type) {
786		case LT_KERNEL:
787		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
788		case LT_INITRD:
789		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
790		default:
791		return type;
792		}
793		#if defined(__i386__) || defined(__x86_64__)
794		} else if (cfi == &grub2ConfigType) {
795		switch (type) {
796		case LT_KERNEL:
797		return LT_KERNEL_16;
798		case LT_INITRD:
799		return LT_INITRD_16;
800		default:
801		return type;
802		}
803		#endif
804		}
805		return type;
806	}	}
807
808	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
809	if (!blkid)	struct configFileInfo *cfi)
810	blkid_get_cache(&blkid, NULL);	{
811		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
812		if (kw->type == type)
813		return kw;
814		}
815		return NULL;
816		}
817
818	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
819		{
820		struct keywordTypes *kt = getKeywordByType(type, cfi);
821		if (kt)
822		return kt->key;
823		return "unknown";
824	}	}
825
826	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
827	if (!blkid)	{
828	blkid_get_cache(&blkid, NULL);	if (!blkid)
829		blkid_get_cache(&blkid, NULL);
830
831	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
832	}	}
833
834	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
835	struct configFileInfo * cfi) {	{
836	for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) {	if (!blkid)
837	if (!strcmp(keyword, kw->key))	blkid_get_cache(&blkid, NULL);
838	return kw->type;
839	}	return blkid_get_tag_value(blkid, "UUID", device);
	return LT_UNKNOWN;
840	}	}
841
842	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
843	struct singleLine * line) {	struct configFileInfo *cfi)
844	dbgPrintf("getLineByType(%d): ", type);	{
845	for (; line; line = line->next) {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
846	dbgPrintf("%d:%s ", line->type,	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
847	line->numElements ? line->elements[0].item : "(empty)");	return kw->type;
848	if (line->type & type) break;	}
849	}	return LT_UNKNOWN;
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
850	}	}
851
852	static int isBracketedTitle(struct singleLine * line) {	static struct singleLine *getLineByType(enum lineType_e type,
853	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct singleLine *line)
854	int len = strlen(line->elements[0].item);	{
855	if (*(line->elements[0].item + len - 1) == ']') {	dbgPrintf("getLineByType(%d): ", type);
856	/* FIXME: this is a hack... */	for (; line; line = line->next) {
857	if (strcmp(line->elements[0].item, "[defaultboot]")) {	dbgPrintf("%d:%s ", line->type,
858	return 1;	line->numElements ? line->elements[0].
859	}	item : "(empty)");
860	}	if (line->type & type)
861	}	break;
862	return 0;	}
863		dbgPrintf(line ? "\n" : " (failed)\n");
864		return line;
865	}	}
866
867	static int isEntryStart(struct singleLine * line,	static int isBracketedTitle(struct singleLine *line)
868	struct configFileInfo * cfi) {	{
869	return line->type == cfi->entryStart || line->type == LT_OTHER ||	if (line->numElements == 1 && *line->elements[0].item == '[') {
870	(cfi->titleBracketed && isBracketedTitle(line));	int len = strlen(line->elements[0].item);
871		if (*(line->elements[0].item + len - 1) == ']') {
872		/* FIXME: this is a hack... */
873		if (strcmp(line->elements[0].item, "[defaultboot]")) {
874		return 1;
875		}
876		}
877		}
878		return 0;
879	}	}
880
881	/* extract the title from within brackets (for zipl) */	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
882	static char * extractTitle(struct singleLine * line) {	{
883	/* bracketed title... let's extract it (leaks a byte) */	return line->type == cfi->entryStart || line->type == LT_OTHER ||
884	char * title;	(cfi->titleBracketed && isBracketedTitle(line));
885	title = strdup(line->elements[0].item);	}
	title++;
	*(title + strlen(title) - 1) = '\0';
	return title;
	}
	static int readFile(int fd, char ** bufPtr) {
	int alloced = 0, size = 0, i = 0;
	char * buf = NULL;
	do {
	size += i;
	if ((size + 1024) > alloced) {
	alloced += 4096;
	buf = realloc(buf, alloced + 1);
	}
	} while ((i = read(fd, buf + size, 1024)) > 0);
	if (i < 0) {
	fprintf(stderr, _("error reading input: %s\n"), strerror(errno));
	free(buf);
	return 1;
	}
886
887	buf = realloc(buf, size + 2);	/* extract the title from within brackets (for zipl) */
888	if (size == 0)	static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
889	buf[size++] = '\n';	{
890	else	/* bracketed title... let's extract it */
891	if (buf[size - 1] != '\n')	char *title = NULL;
892	buf[size++] = '\n';	if (line->type == LT_TITLE) {
893	buf[size] = '\0';	char *tmp = line->elements[cfg->cfi->titlePosition].item;
894		if (cfg->cfi->titleBracketed) {
895		tmp++;
896		title = strdup(tmp);
897		*(title + strlen(title) - 1) = '\0';
898		} else {
899		title = strdup(tmp);
900		}
901		} else if (line->type == LT_MENUENTRY)
902		title = strdup(line->elements[1].item);
903		else
904		return NULL;
905		return title;
906		}
907
908	*bufPtr = buf;	static int readFile(int fd, char **bufPtr)
909		{
910		int alloced = 0, size = 0, i = 0;
911		char *buf = NULL;
912
913	return 0;	do {
914	}	size += i;
915		if ((size + 1024) > alloced) {
916		alloced += 4096;
917		buf = realloc(buf, alloced + 1);
918		}
919		} while ((i = read(fd, buf + size, 1024)) > 0);
920
921	static void lineInit(struct singleLine * line) {	if (i < 0) {
922	line->indent = NULL;	fprintf(stderr, _("error reading input: %s\n"),
923	line->elements = NULL;	strerror(errno));
924	line->numElements = 0;	free(buf);
925	line->next = NULL;	return 1;
926	}	}
	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);
	}
927
928	return newLine;	buf = realloc(buf, size + 2);
929	}	if (size == 0)
930		buf[size++] = '\n';
931		else if (buf[size - 1] != '\n')
932		buf[size++] = '\n';
933		buf[size] = '\0';
934
935	static void lineFree(struct singleLine * line) {	*bufPtr = buf;
	if (line->indent) free(line->indent);
936
937	for (int i = 0; i < line->numElements; i++) {	return 0;
938	free(line->elements[i].item);	}
	free(line->elements[i].indent);
	}
939
940	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
941	lineInit(line);	{
942		line->type = LT_UNIDENTIFIED;
943		line->indent = NULL;
944		line->elements = NULL;
945		line->numElements = 0;
946		line->next = NULL;
947	}	}
948
949	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
950	struct configFileInfo * cfi) {	{
951	if (fprintf(out, "%s", line->indent) == -1) return -1;	struct singleLine *newLine = malloc(sizeof(*newLine));
952
953	for (int i = 0; i < line->numElements; i++) {	newLine->indent = strdup(line->indent);
954	/* Need to handle this, because we strip the quotes from	newLine->next = NULL;
955	* menuentry when read it. */	newLine->type = line->type;
956	if (line->type == LT_MENUENTRY && i == 1) {	newLine->numElements = line->numElements;
957	if(!isquote(*line->elements[i].item))	newLine->elements = malloc(sizeof(*newLine->elements) *
958	fprintf(out, "\'%s\'", line->elements[i].item);	newLine->numElements);
	else
	fprintf(out, "%s", line->elements[i].item);
	fprintf(out, "%s", line->elements[i].indent);
959
960	continue;	for (int i = 0; i < newLine->numElements; i++) {
961		newLine->elements[i].indent = strdup(line->elements[i].indent);
962		newLine->elements[i].item = strdup(line->elements[i].item);
963	}	}
964
965	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	return newLine;
966	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;
	}
967
968	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
969	if (fputc('"', out) == EOF) return -1;	{
970		if (line->indent)
971		free(line->indent);
972
973	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
974		free(line->elements[i].item);
975		free(line->elements[i].indent);
976		}
977
978	return 0;	if (line->elements)
979		free(line->elements);
980		lineInit(line);
981	}	}
982
983	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
984	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
985	struct configFileInfo * cfi) {	{
986	char * end;	if (fprintf(out, "%s", line->indent) == -1)
987	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
988
989	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
990		/* Need to handle this, because we strip the quotes from
991		* menuentry when read it. */
992		if (line->type == LT_MENUENTRY && i == 1) {
993		if (!isquote(*line->elements[i].item)) {
994		int substring = 0;
995		/* If the line contains nested quotes, we did
996		* not strip the "interna" quotes and we must
997		* use the right quotes again when writing
998		* the updated file. */
999		for (int j = i; j < line->numElements; j++) {
1000		if (strchr(line->elements[i].item, '\'')
1001		!= NULL) {
1002		substring = 1;
1003		fprintf(out, "\"%s\"",
1004		line->elements[i].item);
1005		break;
1006		}
1007		}
1008		if (!substring)
1009		fprintf(out, "\'%s\'",
1010		line->elements[i].item);
1011		} else {
1012		fprintf(out, "%s", line->elements[i].item);
1013		}
1014		fprintf(out, "%s", line->elements[i].indent);
1015
1016	end = strchr(start, '\n');	continue;
1017	*end = '\0';	}
	*bufPtr = end + 1;
1018
1019	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1020		if (fputc('"', out) == EOF)
1021		return -1;
1022
1023		if (fprintf(out, "%s", line->elements[i].item) == -1)
1024		return -1;
1025		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1026		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1027		return -1;
1028		}
1029
1030		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1031		if (fputc('"', out) == EOF)
1032		return -1;
1033
1034	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1035	start = chptr;	return -1;
1036
1037	while (start < end) {	return 0;
1038	/* we know !isspace(*start) */	}
1039
1040	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1041	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1042	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1043	sizeof(*line->elements) * elementsAlloced);	{
1044	}	char *end;
1045		char *start = *bufPtr;
1046		char *chptr;
1047		int elementsAlloced = 0;
1048		struct lineElement *element;
1049		int first = 1;
1050
1051	element = line->elements + line->numElements;	lineFree(line);
1052
1053	chptr = start;	end = strchr(start, '\n');
1054	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1055	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1056
1057	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1058
1059	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1060	start = chptr;	start = chptr;
1061
1062	line->numElements++;	while (start < end) {
1063	first = 0;	/* we know !isspace(*start) */
	}
1064
1065	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1066	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1067	else {	line->elements = realloc(line->elements,
1068	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1069	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1070	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	len = strlen(line->indent);
	for (int i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1071
1072	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1073
1074	for (int i = 0; i < line->numElements; i++) {	chptr = start;
1075	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1076	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1077	free(line->elements[i].item);	break;
1078	free(line->elements[i].indent);	chptr++;
1079	}	}
1080		if (line->type == LT_UNIDENTIFIED)
1081		line->type = getTypeByKeyword(start, cfi);
1082		element->item = strndup(start, chptr - start);
1083		start = chptr;
1084
1085		/* lilo actually accepts the pathological case of
1086		* append = " foo " */
1087		if (*start == '=')
1088		chptr = start + 1;
1089		else
1090		chptr = start;
1091
1092		do {
1093		for (; *chptr && isspace(*chptr); chptr++) ;
1094		if (*chptr == '=')
1095		chptr = chptr + 1;
1096		} while (isspace(*chptr));
1097
1098		element->indent = strndup(start, chptr - start);
1099		start = chptr;
1100
1101		line->numElements++;
1102		first = 0;
1103		}
1104
1105		if (!line->numElements)
1106	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1107	line->numElements = 0;	else {
1108	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1109	} else {	if (line->type == LT_UNKNOWN) {
1110	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1111		* like all the other boot loaders.  kind of ugly */
1112		if (cfi->titleBracketed && isBracketedTitle(line)) {
1113		line->type = LT_TITLE;
1114		}
1115
1116	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1117		* keywords that begin with a # (specifically for
1118		* #boot in grub.conf), but still make comments lines
1119		* with no elements (everything stored in the indent
1120		*/
1121		if (*line->elements[0].item == '#') {
1122		char *fullLine;
1123		int len;
1124
1125		len = strlen(line->indent);
1126		for (int i = 0; i < line->numElements; i++)
1127		len += strlen(line->elements[i].item) +
1128		strlen(line->elements[i].indent);
1129
1130		fullLine = malloc(len + 1);
1131		strcpy(fullLine, line->indent);
1132		free(line->indent);
1133		line->indent = fullLine;
1134
1135		for (int i = 0; i < line->numElements; i++) {
1136		strcat(fullLine,
1137		line->elements[i].item);
1138		strcat(fullLine,
1139		line->elements[i].indent);
1140		free(line->elements[i].item);
1141		free(line->elements[i].indent);
1142		}
1143
1144	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1145	* 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];
1146	}	}
1147	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1148		struct keywordTypes *kw;
1149
1150	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1151
1152	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1153	if (*p == '\0') {	* elements up more
1154	break;	*/
1155	}	if (!isspace(kw->separatorChar)) {
1156		char indent[2] = "";
1157		indent[0] = kw->separatorChar;
1158		for (int i = 1; i < line->numElements; i++) {
1159		char *p;
1160		int numNewElements;
1161
1162		numNewElements = 0;
1163		p = line->elements[i].item;
1164		while (*p != '\0') {
1165		if (*p == kw->separatorChar)
1166		numNewElements++;
1167		p++;
1168		}
1169		if (line->numElements +
1170		numNewElements >= elementsAlloced) {
1171		elementsAlloced +=
1172		numNewElements + 5;
1173		line->elements =
1174		realloc(line->elements,
1175		sizeof(*line->
1176		elements) *
1177		elementsAlloced);
1178		}
1179
1180	line->elements[i + 1].indent = line->elements[i].indent;	for (int j = line->numElements; j > i;
1181	line->elements[i].indent = strdup(indent);	j--) {
1182	*p++ = '\0';	line->elements[j +
1183	i++;	numNewElements] =
1184	line->elements[i].item = strdup(p);	line->elements[j];
1185		}
1186		line->numElements += numNewElements;
1187
1188		p = line->elements[i].item;
1189		while (*p != '\0') {
1190
1191		while (*p != kw->separatorChar
1192		&& *p != '\0')
1193		p++;
1194		if (*p == '\0') {
1195		break;
1196		}
1197
1198		line->elements[i + 1].indent =
1199		line->elements[i].indent;
1200		line->elements[i].indent =
1201		strdup(indent);
1202		*p++ = '\0';
1203		i++;
1204		line->elements[i].item =
1205		strdup(p);
1206		}
1207		}
1208		}
1209		} else if (line->type == LT_SET_VARIABLE) {
1210		/* and if it's a "set blah=" we need to split it
1211		* yet a third way to avoid rhbz# XXX FIXME :/
1212		*/
1213		char *eq;
1214		int l;
1215		int numElements = line->numElements;
1216		struct lineElement *newElements;
1217		eq = strchr(line->elements[1].item, '=');
1218		if (!eq)
1219		return 0;
1220		l = eq - line->elements[1].item;
1221		if (eq[1] != 0)
1222		numElements++;
1223		newElements = calloc(numElements,sizeof (*newElements));
1224		memcpy(&newElements[0], &line->elements[0],
1225		sizeof (newElements[0]));
1226		newElements[1].item =
1227		strndup(line->elements[1].item, l);
1228		newElements[1].indent = "=";
1229		*(eq++) = '\0';
1230		newElements[2].item = strdup(eq);
1231		free(line->elements[1].item);
1232		if (line->elements[1].indent)
1233		newElements[2].indent = line->elements[1].indent;
1234		for (int i = 2; i < line->numElements; i++) {
1235		newElements[i+1].item = line->elements[i].item;
1236		newElements[i+1].indent =
1237		line->elements[i].indent;
1238	}	}
1239	}	free(line->elements);
1240		line->elements = newElements;
1241		line->numElements = numElements;
1242	}	}
1243	}	}
	}
1244
1245	return 0;	return 0;
1246	}	}
1247
1248	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1249	struct configFileInfo * cfi) {	{
1250	int in;	int i;
1251	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1252	int rc;	if (s[i] < '0' || s[i] > '9')
1253	int sawEntry = 0;	return 0;
1254	int movedLine = 0;	return i;
1255	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int 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);
1256
1257	if (getNextLine(&head, line, cfi)) {	static struct grubConfig *readConfig(const char *inName,
1258	free(line);	struct configFileInfo *cfi)
1259	/* XXX memory leak of everything in cfg */	{
1260	return NULL;	int in;
1261	}	char *incoming = NULL, *head;
1262		int rc;
1263	if (!sawEntry && line->numElements) {	int sawEntry = 0;
1264	free(cfg->primaryIndent);	int movedLine = 0;
1265	cfg->primaryIndent = strdup(line->indent);	struct grubConfig *cfg;
1266	} else if (line->numElements) {	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1267	free(cfg->secondaryIndent);	char *end;
1268	cfg->secondaryIndent = strdup(line->indent);	struct singleEntry *entry = NULL;
1269	}	int len;
1270		char *buf;
1271	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1272	sawEntry = 1;	if (inName == NULL) {
1273	if (!entry) {	printf("Could not find bootloader configuration\n");
1274	cfg->entries = malloc(sizeof(*entry));	exit(1);
1275	entry = cfg->entries;	} else if (!strcmp(inName, "-")) {
1276	} else {	in = 0;
1277	entry->next = malloc(sizeof(*entry));	} else {
1278	entry = entry->next;	if ((in = open(inName, O_RDONLY)) < 0) {
1279	}	fprintf(stderr, _("error opening %s for read: %s\n"),
1280		inName, strerror(errno));
1281		return NULL;
1282		}
1283		}
1284
1285	entry->skip = 0;	rc = readFile(in, &incoming);
1286	entry->multiboot = 0;	close(in);
1287	entry->lines = NULL;	if (rc)
1288	entry->next = NULL;	return NULL;
1289	}
1290		head = incoming;
1291	if (line->type == LT_SET_VARIABLE) {	cfg = malloc(sizeof(*cfg));
1292	dbgPrintf("found 'set' command (%d elements): ", line->numElements);	cfg->primaryIndent = strdup("");
1293	dbgPrintf("%s", line->indent);	cfg->secondaryIndent = strdup("\t");
1294	for (int i = 0; i < line->numElements; i++)	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1295	dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent);	cfg->cfi = cfi;
1296	dbgPrintf("\n");	cfg->theLines = NULL;
1297	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);	cfg->entries = NULL;
1298	if (kwType && line->numElements == 3 &&	cfg->fallbackImage = 0;
1299	!strcmp(line->elements[1].item, kwType->key)) {
1300	dbgPrintf("Line sets default config\n");	/* copy everything we have */
1301	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	while (*head) {
1302	defaultLine = line;	line = malloc(sizeof(*line));
1303	}	lineInit(line);
1304	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
1305	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;	if (getNextLine(&head, line, cfi)) {
1306	defaultLine = line;	free(line);
1307		/* XXX memory leak of everything in cfg */
1308	} else if (line->type == LT_KERNEL) {	return NULL;
1309	/* if by some freak chance this is multiboot and the "module"	}
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	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';
1310
1311	for (int i = 1; i < line->numElements; i++) {	if (!sawEntry && line->numElements) {
1312	strcat(buf, line->elements[i].item);	free(cfg->primaryIndent);
1313	free(line->elements[i].item);	cfg->primaryIndent = strdup(line->indent);
1314		} else if (line->numElements) {
1315		free(cfg->secondaryIndent);
1316		cfg->secondaryIndent = strdup(line->indent);
1317		}
1318
1319	if ((i + 1) != line->numElements) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1320	strcat(buf, line->elements[i].indent);	sawEntry = 1;
1321	free(line->elements[i].indent);	if (!entry) {
1322	}	cfg->entries = malloc(sizeof(*entry));
1323	}	entry = cfg->entries;
1324		} else {
1325	line->elements[1].indent =	entry->next = malloc(sizeof(*entry));
1326	line->elements[line->numElements - 1].indent;	entry = entry->next;
1327	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;
1328
1329	len = strlen(title);	entry->skip = 0;
1330	if (isquote(title[len-1])) {	entry->multiboot = 0;
1331	strncat(buf, title,len-1);	entry->lines = NULL;
1332	break;	entry->next = NULL;
	} else {
	strcat(buf, title);
	strcat(buf, line->elements[i].indent);
1333	}	}
	}
	/* get extras */
	int count = 0;
	for (int i = 0; i < line->numElements; i++) {
	if (count >= 2) {
	strcat(extras, line->elements[i].item);
	strcat(extras, line->elements[i].indent);
	}
	if (!strcmp(line->elements[i].item, "menuentry"))
	continue;
	/* count ' or ", there should be two in menuentry line. */
	if (isquote(*line->elements[i].item))
	count++;
	len = strlen(line->elements[i].item);
	if (isquote(line->elements[i].item[len -1]))
	count++;
	/* ok, we get the final ' or ", others are extras. */
	}
	line->elements[1].indent =
	line->elements[line->numElements - 2].indent;
	line->elements[1].item = buf;
	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;
1334
1335	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1336	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1337	entry->lines = line;	line->numElements);
1338	else	dbgPrintf("%s", line->indent);
1339	last->next = line;	for (int i = 0; i < line->numElements; i++)
1340	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1341		line->elements[i].indent);
1342	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1343	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1344	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1345	sawEntry = 0;	if (kwType && line->numElements == 3
1346	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1347	if (!cfg->theLines)	&& !is_special_grub2_variable(
1348	cfg->theLines = line;	line->elements[2].item)) {
1349	else	dbgPrintf("Line sets default config\n");
1350	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1351	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1352	}	}
1353		} else if (iskernel(line->type)) {
1354		/* if by some freak chance this is multiboot and the
1355		* "module" lines came earlier in the template, make
1356		* sure to use LT_HYPER instead of LT_KERNEL now
1357		*/
1358		if (entry && entry->multiboot)
1359		line->type = LT_HYPER;
1360
1361	last = line;	} else if (line->type == LT_MBMODULE) {
1362	}	/* go back and fix the LT_KERNEL line to indicate
1363		* LT_HYPER instead, now that we know this is a
1364		* multiboot entry.  This only applies to grub, but
1365		* that's the only place we should find LT_MBMODULE
1366		* lines anyway.
1367		*/
1368		for (struct singleLine * l = entry->lines; l;
1369		l = l->next) {
1370		if (l->type == LT_HYPER)
1371		break;
1372		else if (iskernel(l->type)) {
1373		l->type = LT_HYPER;
1374		break;
1375		}
1376		}
1377		entry->multiboot = 1;
1378
1379	free(incoming);	} else if (line->type == LT_HYPER) {
1380		entry->multiboot = 1;
1381
1382	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1383	if (defaultLine) {	cfg->fallbackImage =
1384	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1385	cfi->defaultSupportSaved &&	if (*end)
1386	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1387	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1388	} else if (cfi->defaultIsVariable) {	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1389	char *value = defaultLine->elements[2].item;	|| (line->type == LT_TITLE
1390	while (*value && (*value == '"' || *value == '\'' ||	&& line->numElements > 1)) {
1391	*value == ' ' || *value == '\t'))	/* make the title/default a single argument (undoing
1392	value++;	* our parsing) */
1393	cfg->defaultImage = strtol(value, &end, 10);	len = 0;
1394	while (*end && (*end == '"' || *end == '\'' ||	for (int i = 1; i < line->numElements; i++) {
1395	*end == ' ' || *end == '\t'))	len += strlen(line->elements[i].item);
1396	end++;	len += strlen(line->elements[i].indent);
1397	if (*end) cfg->defaultImage = -1;	}
1398	} else if (cfi->defaultSupportSaved &&	buf = malloc(len + 1);
1399	!strncmp(defaultLine->elements[1].item, "saved", 5)) {	*buf = '\0';
	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;
	}
1400
1401	if (entry){	for (int i = 1; i < line->numElements; i++) {
1402	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1403	}else{	free(line->elements[i].item);
1404	cfg->defaultImage = -1;
1405	}	if ((i + 1) != line->numElements) {
1406	}	strcat(buf, line->elements[i].indent);
1407	} else {	free(line->elements[i].indent);
1408	cfg->defaultImage = 0;	}
1409	}	}
1410
1411	return cfg;	line->elements[1].indent =
1412	}	line->elements[line->numElements - 1].indent;
1413		line->elements[1].item = buf;
1414		line->numElements = 2;
1415		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1416		/* let --remove-kernel="TITLE=what" work */
1417		len = 0;
1418		char *extras;
1419		char *title;
1420		/* initially unseen value */
1421		char quote_char = '\0';
1422
1423		for (int i = 1; i < line->numElements; i++) {
1424		len += strlen(line->elements[i].item);
1425		len += strlen(line->elements[i].indent);
1426		}
1427		buf = malloc(len + 1);
1428		*buf = '\0';
1429
1430	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1431	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1432	struct singleEntry * entry;	*extras = '\0';
1433	struct singleLine * line;
1434	int i;	/* get title. */
1435		for (int i = 0; i < line->numElements; i++) {
1436	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1437		(line->elements[i].item, "menuentry"))
1438	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1439	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1440	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)	&& quote_char == '\0') {
1441	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1442	else if (cfg->defaultImage > -1) {	quote_char = *line->elements[i].item;
1443	if (cfg->cfi->defaultIsIndex) {	title = line->elements[i].item + 1;
1444	if (cfg->cfi->defaultIsVariable) {	} else {
1445	fprintf(out, "%sset default=\"%d\"\n", indent,	title = line->elements[i].item;
1446	cfg->defaultImage);	}
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1447
1448	entry = cfg->entries;	len = strlen(title);
1449	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1450		strncat(buf, title, len - 1);
1451		break;
1452		} else {
1453		strcat(buf, title);
1454		strcat(buf, line->elements[i].indent);
1455		}
1456		}
1457
1458	i = 0;	/* get extras */
1459	while (entry && i < image) {	int count = 0;
1460	entry = entry->next;	quote_char = '\0';
1461		for (int i = 0; i < line->numElements; i++) {
1462		if (count >= 2) {
1463		strcat(extras, line->elements[i].item);
1464		strcat(extras,
1465		line->elements[i].indent);
1466		}
1467
1468	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1469	i++;	(line->elements[i].item, "menuentry"))
1470	}	continue;
1471
1472		/* count ' or ", there should be two in menuentry line. */
1473		if (isquote(*line->elements[i].item)
1474		&& quote_char == '\0') {
1475		/* ensure we properly pair off quotes */
1476		quote_char = *line->elements[i].item;
1477		count++;
1478		}
1479
1480	if (!entry) return;	len = strlen(line->elements[i].item);
1481
1482	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1483		quote_char)
1484		count++;
1485
1486	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1487	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1488	line->elements[1].item);	line->elements[1].indent =
1489	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1490	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1491	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1492	extractTitle(line));	line->elements[line->numElements - 2].indent;
1493	}	line->elements[2].item = extras;
1494	}	line->numElements = 3;
1495	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1496	}	/* Strip off any " which may be present; they'll be
1497		* put back on write. This is one of the few (the
1498		* only?) places that grubby canonicalizes the output
1499		*/
1500		if (line->numElements >= 2) {
1501		int last, len;
1502
1503	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1504	const char * prefix) {	memmove(line->elements[1].item,
1505	FILE * out;	line->elements[1].item + 1,
1506	struct singleLine * line;	strlen(line->elements[1].item +
1507	struct singleEntry * entry;	1) + 1);
1508	char * tmpOutName;
1509	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1510	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1511	int i;	if (isquote(line->elements[last].item[len]))
1512		line->elements[last].item[len] = '\0';
1513	if (!strcmp(outName, "-")) {	}
1514	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 */
	char *dir = strdupa(outName);
	rc = chdir(dirname(dir));
	free(dir);
	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;
	}
	}
	}
1515
1516	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1517	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1518	while (line) {	defaultLine = line;
1519	if (line->type == LT_SET_VARIABLE && defaultKw &&	}
	line->numElements == 3 &&
	!strcmp(line->elements[1].item, defaultKw->key)) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_DEFAULT) {
	writeDefault(out, line->indent, line->elements[0].indent, cfg);
	needs &= ~MAIN_DEFAULT;
	} else if (line->type == LT_FALLBACK) {
	if (cfg->fallbackImage > -1)
	fprintf(out, "%s%s%s%d\n", line->indent,
	line->elements[0].item, line->elements[0].indent,
	cfg->fallbackImage);
	} else {
	if (lineWrite(out, line, cfg->cfi) == -1) {
	fprintf(stderr, _("grubby: error writing %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
1520
1521	line = line->next;	/* If we find a generic config option which should live at the
1522	}	top of the file, move it there. Old versions of grubby were
1523		probably responsible for putting new images in the wrong
1524		place in front of it anyway. */
1525		if (sawEntry && line->type == LT_GENERIC) {
1526		struct singleLine **l = &cfg->theLines;
1527		struct singleLine **last_nonws = &cfg->theLines;
1528		while (*l) {
1529		if ((*l)->type != LT_WHITESPACE)
1530		last_nonws = &((*l)->next);
1531		l = &((*l)->next);
1532		}
1533		line->next = *last_nonws;
1534		*last_nonws = line;
1535		movedLine = 1;
1536		continue; /* without setting 'last' */
1537		}
1538
1539	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1540	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1541	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1542	}	&& last->type == LT_WHITESPACE) {
1543		lineFree(line);
1544		free(line);
1545		movedLine = 0;
1546		continue;
1547		}
1548		movedLine = 0;
1549
1550	i = 0;	if (sawEntry) {
1551	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1552	if (entry->skip) continue;	entry->lines = line;
1553		else
1554		last->next = line;
1555		dbgPrintf("readConfig added %s to %p\n",
1556		getKeyByType(line->type, cfi), entry);
1557
1558	line = entry->lines;	/* we could have seen this outside of an entry... if
1559	while (line) {	* so, we ignore it like any other line we don't grok
1560	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1561	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1562	tmpOutName, strerror(errno));	sawEntry = 0;
1563	fclose(out);	} else {
1564	unlink(tmpOutName);	if (!cfg->theLines)
1565	return 1;	cfg->theLines = line;
1566	}	else
1567	line = line->next;	last->next = line;
1568	}	dbgPrintf("readConfig added %s to cfg\n",
1569	}	getKeyByType(line->type, cfi));
1570		}
1571
1572	if (tmpOutName) {	last = line;
	if (rename(tmpOutName, outName)) {
	fprintf(stderr, _("grubby: error moving %s to %s: %s\n"),
	tmpOutName, outName, strerror(errno));
	unlink(outName);
	return 1;
1573	}	}
	}
1574
1575	return 0;	free(incoming);
	}
1576
1577	static int numEntries(struct grubConfig *cfg) {	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1578	int i = 0;	if (defaultLine) {
1579	struct singleEntry * entry;	if (defaultLine->numElements > 2 &&
1580		cfi->defaultSupportSaved &&
1581	entry = cfg->entries;	!strncmp(defaultLine->elements[2].item,
1582	while (entry) {	"\"${saved_entry}\"", 16)) {
1583	if (!entry->skip)	cfg->cfi->defaultIsSaved = 1;
1584	i++;	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1585	entry = entry->next;	if (cfg->cfi->getEnv) {
1586	}	char *defTitle =
1587	return i;	cfi->getEnv(cfg->cfi, "saved_entry");
1588		if (defTitle) {
1589		int index = 0;
1590		if (isnumber(defTitle)) {
1591		index = atoi(defTitle);
1592		entry =
1593		findEntryByIndex(cfg,
1594		index);
1595		} else {
1596		entry =
1597		findEntryByTitle(cfg,
1598		defTitle,
1599		&index);
1600		}
1601		if (entry)
1602		cfg->defaultImage = index;
1603		}
1604		}
1605		} else if (cfi->defaultIsVariable) {
1606		if (defaultLine->numElements == 2) {
1607		char *value = defaultLine->elements[1].item + 8;
1608		while (*value && (*value == '"' ||
1609		*value == '\'' ||
1610		*value == ' ' ||
1611		*value == '\t'))
1612		value++;
1613		cfg->defaultImage = strtol(value, &end, 10);
1614		while (*end && (*end == '"' || *end == '\'' ||
1615		*end == ' ' || *end == '\t'))
1616		end++;
1617		if (*end)
1618		cfg->defaultImage = -1;
1619		} else if (defaultLine->numElements == 3) {
1620		char *value = defaultLine->elements[2].item;
1621		while (*value && (*value == '"' ||
1622		*value == '\'' ||
1623		*value == ' ' ||
1624		*value == '\t'))
1625		value++;
1626		cfg->defaultImage = strtol(value, &end, 10);
1627		while (*end && (*end == '"' || *end == '\'' ||
1628		*end == ' ' || *end == '\t'))
1629		end++;
1630		if (*end)
1631		cfg->defaultImage = -1;
1632		}
1633		} else if (cfi->defaultSupportSaved &&
1634		!strncmp(defaultLine->elements[1].item, "saved",
1635		5)) {
1636		cfg->defaultImage = DEFAULT_SAVED;
1637		} else if (cfi->defaultIsIndex) {
1638		cfg->defaultImage =
1639		strtol(defaultLine->elements[1].item, &end, 10);
1640		if (*end)
1641		cfg->defaultImage = -1;
1642		} else if (defaultLine->numElements >= 2) {
1643		int i = 0;
1644		while ((entry = findEntryByIndex(cfg, i))) {
1645		for (line = entry->lines; line;
1646		line = line->next)
1647		if (line->type == LT_TITLE)
1648		break;
1649
1650		if (!cfi->titleBracketed) {
1651		if (line && (line->numElements >= 2) &&
1652		!strcmp(defaultLine->elements[1].
1653		item,
1654		line->elements[1].item))
1655		break;
1656		} else if (line) {
1657		if (!strcmp
1658		(defaultLine->elements[1].item,
1659		extractTitle(cfg, line)))
1660		break;
1661		}
1662		i++;
1663		entry = NULL;
1664		}
1665
1666		if (entry) {
1667		cfg->defaultImage = i;
1668		} else {
1669		cfg->defaultImage = -1;
1670		}
1671		}
1672		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1673		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1674		if (defTitle) {
1675		int index = 0;
1676		if (isnumber(defTitle)) {
1677		index = atoi(defTitle);
1678		entry = findEntryByIndex(cfg, index);
1679		} else {
1680		entry = findEntryByTitle(cfg, defTitle, &index);
1681		}
1682		if (entry)
1683		cfg->defaultImage = index;
1684		}
1685		} else {
1686		cfg->defaultImage = 0;
1687		}
1688
1689		return cfg;
1690		}
1691
1692		static void writeDefault(FILE * out, char *indent,
1693		char *separator, struct grubConfig *cfg)
1694		{
1695		struct singleEntry *entry;
1696		struct singleLine *line;
1697		int i;
1698
1699		if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1700		return;
1701
1702		if (cfg->defaultImage == DEFAULT_SAVED)
1703		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1704		else if (cfg->cfi->defaultIsSaved) {
1705		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1706		if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) {
1707		char *title;
1708		entry = findEntryByIndex(cfg, cfg->defaultImage);
1709		line = getLineByType(LT_MENUENTRY, entry->lines);
1710		if (!line)
1711		line = getLineByType(LT_TITLE, entry->lines);
1712		if (line) {
1713		title = extractTitle(cfg, line);
1714		if (title)
1715		cfg->cfi->setEnv(cfg->cfi,
1716		"saved_entry", title);
1717		}
1718		}
1719		} else if (cfg->defaultImage > -1) {
1720		if (cfg->cfi->defaultIsIndex) {
1721		if (cfg->cfi->defaultIsVariable) {
1722		fprintf(out, "%sset default=\"%d\"\n", indent,
1723		cfg->defaultImage);
1724		} else {
1725		fprintf(out, "%sdefault%s%d\n", indent,
1726		separator, cfg->defaultImage);
1727		}
1728		} else {
1729		int image = cfg->defaultImage;
1730
1731		entry = cfg->entries;
1732		while (entry && entry->skip)
1733		entry = entry->next;
1734
1735		i = 0;
1736		while (entry && i < image) {
1737		entry = entry->next;
1738
1739		while (entry && entry->skip)
1740		entry = entry->next;
1741		i++;
1742		}
1743
1744		if (!entry)
1745		return;
1746
1747		line = getLineByType(LT_TITLE, entry->lines);
1748
1749		if (line && line->numElements >= 2)
1750		fprintf(out, "%sdefault%s%s\n", indent,
1751		separator, line->elements[1].item);
1752		else if (line && (line->numElements == 1)
1753		&& cfg->cfi->titleBracketed) {
1754		char *title = extractTitle(cfg, line);
1755		if (title) {
1756		fprintf(out, "%sdefault%s%s\n", indent,
1757		separator, title);
1758		free(title);
1759		}
1760		}
1761		}
1762		}
1763		}
1764
1765		static int writeConfig(struct grubConfig *cfg, char *outName,
1766		const char *prefix)
1767		{
1768		FILE *out;
1769		struct singleLine *line;
1770		struct singleEntry *entry;
1771		char *tmpOutName;
1772		int needs = MAIN_DEFAULT;
1773		struct stat sb;
1774		int i;
1775
1776		if (!strcmp(outName, "-")) {
1777		out = stdout;
1778		tmpOutName = NULL;
1779		} else {
1780		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1781		char *buf;
1782		int len = 256;
1783		int rc;
1784
1785		/* most likely the symlink is relative, so change our
1786		directory to the dir of the symlink */
1787		char *dir = strdupa(outName);
1788		rc = chdir(dirname(dir));
1789		do {
1790		buf = alloca(len + 1);
1791		rc = readlink(basename(outName), buf, len);
1792		if (rc == len)
1793		len += 256;
1794		} while (rc == len);
1795
1796		if (rc < 0) {
1797		fprintf(stderr,
1798		_
1799		("grubby: error readlink link %s: %s\n"),
1800		outName, strerror(errno));
1801		return 1;
1802		}
1803
1804		outName = buf;
1805		outName[rc] = '\0';
1806		}
1807
1808		tmpOutName = alloca(strlen(outName) + 2);
1809		sprintf(tmpOutName, "%s-", outName);
1810		out = fopen(tmpOutName, "w");
1811		if (!out) {
1812		fprintf(stderr, _("grubby: error creating %s: %s\n"),
1813		tmpOutName, strerror(errno));
1814		return 1;
1815		}
1816
1817		if (!stat(outName, &sb)) {
1818		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1819		fprintf(stderr,
1820		_
1821		("grubby: error setting perms on %s: %s\n"),
1822		tmpOutName, strerror(errno));
1823		fclose(out);
1824		unlink(tmpOutName);
1825		return 1;
1826		}
1827		}
1828		}
1829
1830		line = cfg->theLines;
1831		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1832		while (line) {
1833		if (line->type == LT_SET_VARIABLE && defaultKw &&
1834		line->numElements == 3 &&
1835		!strcmp(line->elements[1].item, defaultKw->key) &&
1836		!is_special_grub2_variable(line->elements[2].item)) {
1837		writeDefault(out, line->indent,
1838		line->elements[0].indent, cfg);
1839		needs &= ~MAIN_DEFAULT;
1840		} else if (line->type == LT_DEFAULT) {
1841		writeDefault(out, line->indent,
1842		line->elements[0].indent, cfg);
1843		needs &= ~MAIN_DEFAULT;
1844		} else if (line->type == LT_FALLBACK) {
1845		if (cfg->fallbackImage > -1)
1846		fprintf(out, "%s%s%s%d\n", line->indent,
1847		line->elements[0].item,
1848		line->elements[0].indent,
1849		cfg->fallbackImage);
1850		} else {
1851		if (lineWrite(out, line, cfg->cfi) == -1) {
1852		fprintf(stderr,
1853		_("grubby: error writing %s: %s\n"),
1854		tmpOutName, strerror(errno));
1855		fclose(out);
1856		unlink(tmpOutName);
1857		return 1;
1858		}
1859		}
1860
1861		line = line->next;
1862		}
1863
1864		if (needs & MAIN_DEFAULT) {
1865		writeDefault(out, cfg->primaryIndent, "=", cfg);
1866		needs &= ~MAIN_DEFAULT;
1867		}
1868
1869		i = 0;
1870		while ((entry = findEntryByIndex(cfg, i++))) {
1871		if (entry->skip)
1872		continue;
1873
1874		line = entry->lines;
1875		while (line) {
1876		if (lineWrite(out, line, cfg->cfi) == -1) {
1877		fprintf(stderr,
1878		_("grubby: error writing %s: %s\n"),
1879		tmpOutName, strerror(errno));
1880		fclose(out);
1881		unlink(tmpOutName);
1882		return 1;
1883		}
1884		line = line->next;
1885		}
1886		}
1887
1888		if (tmpOutName) {
1889		if (rename(tmpOutName, outName)) {
1890		fprintf(stderr,
1891		_("grubby: error moving %s to %s: %s\n"),
1892		tmpOutName, outName, strerror(errno));
1893		unlink(outName);
1894		return 1;
1895		}
1896		}
1897
1898		return 0;
1899		}
1900
1901		static int numEntries(struct grubConfig *cfg)
1902		{
1903		int i = 0;
1904		struct singleEntry *entry;
1905
1906		entry = cfg->entries;
1907		while (entry) {
1908		if (!entry->skip)
1909		i++;
1910		entry = entry->next;
1911		}
1912		return i;
1913	}	}
1914
1915	static char *findDiskForRoot()	static char *findDiskForRoot()
1916	{	{
1917	int fd;	int fd;
1918	char buf[65536];	char buf[65536];
1919	char *devname;	char *devname;
1920	char *chptr;	char *chptr;
1921	int rc;	int rc;
1922
1923		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1924		fprintf(stderr, "grubby: failed to open %s: %s\n",
1925		_PATH_MOUNTED, strerror(errno));
1926		return NULL;
1927		}
1928
1929		rc = read(fd, buf, sizeof(buf) - 1);
1930		if (rc <= 0) {
1931		fprintf(stderr, "grubby: failed to read %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		close(fd);
1934		return NULL;
1935		}
1936		close(fd);
1937		buf[rc] = '\0';
1938		chptr = buf;
1939
1940	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;
	}
1941
1942	rc = read(fd, buf, sizeof(buf) - 1);	while (chptr && chptr != buf + rc) {
1943	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++;
	}
1944
1945	/* Return the last / entry found */	/*
1946	if (foundanswer) {	* The first column of a mtab entry is the device, but if the
1947	chptr = strchr(foundanswer, ' ');	* entry is a special device it won't start with /, so move
1948	*chptr = '\0';	* on to the next line.
1949	return strdup(foundanswer);	*/
1950	}	if (*devname != '/') {
1951		chptr = strchr(chptr, '\n');
1952		if (chptr)
1953		chptr++;
1954		continue;
1955		}
1956
1957	return NULL;	/* Seek to the next space */
1958		chptr = strchr(chptr, ' ');
1959		if (!chptr) {
1960		fprintf(stderr, "grubby: error parsing %s: %s\n",
1961		_PATH_MOUNTED, strerror(errno));
1962		return NULL;
1963		}
1964
1965		/*
1966		* The second column of a mtab entry is the mount point, we
1967		* are looking for '/' obviously.
1968		*/
1969		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1970		/* remember the last / entry in mtab */
1971		foundanswer = devname;
1972		}
1973
1974		/* Next line */
1975		chptr = strchr(chptr, '\n');
1976		if (chptr)
1977		chptr++;
1978		}
1979
1980		/* Return the last / entry found */
1981		if (foundanswer) {
1982		chptr = strchr(foundanswer, ' ');
1983		*chptr = '\0';
1984		return strdup(foundanswer);
1985		}
1986
1987		return NULL;
1988	}	}
1989
1990	void printEntry(struct singleEntry * entry) {	void printEntry(struct singleEntry *entry, FILE * f)
1991	int i;	{
1992	struct singleLine * line;	int i;
1993		struct singleLine *line;
1994
1995	for (line = entry->lines; line; line = line->next) {	for (line = entry->lines; line; line = line->next) {
1996	fprintf(stderr, "DBG: %s", line->indent);	log_message(f, "DBG: %s", line->indent);
1997	for (i = 0; i < line->numElements; i++) {	for (i = 0; i < line->numElements; i++) {
1998	/* Need to handle this, because we strip the quotes from	/* Need to handle this, because we strip the quotes from
1999	* menuentry when read it. */	* menuentry when read it. */
2000	if (line->type == LT_MENUENTRY && i == 1) {	if (line->type == LT_MENUENTRY && i == 1) {
2001	if(!isquote(*line->elements[i].item))	if (!isquote(*line->elements[i].item))
2002	fprintf(stderr, "\'%s\'", line->elements[i].item);	log_message(f, "\'%s\'",
2003	else	line->elements[i].item);
2004	fprintf(stderr, "%s", line->elements[i].item);	else
2005	fprintf(stderr, "%s", line->elements[i].indent);	log_message(f, "%s",
2006		line->elements[i].item);
2007	continue;	log_message(f, "%s", line->elements[i].indent);
2008	}
2009		continue;
2010	fprintf(stderr, "%s%s",	}
2011	line->elements[i].item, line->elements[i].indent);
2012		log_message(f, "%s%s",
2013		line->elements[i].item,
2014		line->elements[i].indent);
2015		}
2016		log_message(f, "\n");
2017	}	}
	fprintf(stderr, "\n");
	}
2018	}	}
2019
2020	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2021		...)
2022	{	{
2023	va_list argp;	static int once;
2024		va_list argp, argq;
2025
2026	if (!debug)	va_start(argp, fmt);
	return;
2027
2028	va_start(argp, fmt);	va_copy(argq, argp);
2029	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2030	vfprintf(stderr, fmt, argp);	log_time(NULL);
2031	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2032	va_end(argp);	}
2033		log_message(NULL, "DBG: Image entry %s: ",
2034		okay ? "succeeded" : "failed");
2035		log_vmessage(NULL, fmt, argq);
2036
2037		printEntry(entry, NULL);
2038		va_end(argq);
2039
2040		if (!debug) {
2041		once = 1;
2042		va_end(argp);
2043		return;
2044		}
2045
2046		if (okay) {
2047		va_end(argp);
2048		return;
2049		}
2050
2051		if (!once)
2052		log_message(stderr, "DBG: command line: %s\n",
2053		saved_command_line);
2054		once = 1;
2055		fprintf(stderr, "DBG: Image entry failed: ");
2056		vfprintf(stderr, fmt, argp);
2057		printEntry(entry, stderr);
2058		va_end(argp);
2059	}	}
2060
2061	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1554  static int endswith(const char *s, char	Line 2071  static int endswith(const char *s, char
2071	return s[slen] == c;	return s[slen] == c;
2072	}	}
2073
2074	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2075	int skipRemoved, int flags) {	int skipRemoved, int flags)
2076	struct singleLine * line;	{
2077	char * fullName;	struct singleLine *line;
2078	int i;	char *fullName;
2079	char * dev;	int i;
2080	char * rootspec;	char *dev;
2081	char * rootdev;	char *rootspec;
2082		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2083
2084	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2085	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2086	notSuitablePrintf(entry, "no line found\n");	return 0;
2087	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2088
2089	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2090		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2091		entry->lines);
2092		if (!line) {
2093		notSuitablePrintf(entry, 0, "no line found\n");
2094		return 0;
2095		}
2096		if (line->numElements < 2) {
2097		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2098		line->numElements);
2099		return 0;
2100		}
2101
2102	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2103	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2104	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2105	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);
2106
2107	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2108	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2109	} else {	rootspec = getRootSpecifier(line->elements[1].item);
2110	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2111	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	int hasslash = endswith(bootPrefix, '/') ||
2112	*/	beginswith(line->elements[1].item + rootspec_offset, '/');
2113	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2114		line->elements[1].item + rootspec_offset);
2115	/* failed to find one */	if (access(fullName, R_OK)) {
2116	if (!line) {	notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
	notSuitablePrintf(entry, "no line found\n");
2117	return 0;	return 0;
2118	}	}
2119		for (i = 2; i < line->numElements; i++)
2120		if (!strncasecmp(line->elements[i].item, "root=", 5))
2121		break;
2122		if (i < line->numElements) {
2123		dev = line->elements[i].item + 5;
2124		} else {
2125		/* look for a lilo style LT_ROOT line */
2126		line = getLineByType(LT_ROOT, entry->lines);
2127
2128		if (line && line->numElements >= 2) {
2129		dev = line->elements[1].item;
2130		} else {
2131		/* didn't succeed in finding a LT_ROOT, let's try
2132		* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2133		* for the args, so check that too.
2134		*/
2135		line =
2136		getLineByType(LT_KERNELARGS | LT_MBMODULE,
2137		entry->lines);
2138
2139		/* failed to find one */
2140		if (!line) {
2141		notSuitablePrintf(entry, 0, "no line found\n");
2142		return 0;
2143		}
2144
2145	for (i = 1; i < line->numElements; i++)	for (i = 1; i < line->numElements; i++)
2146	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	if (!strncasecmp
2147	if (i < line->numElements)	(line->elements[i].item, "root=", 5))
2148	dev = line->elements[i].item + 5;	break;
2149	else {	if (i < line->numElements)
2150	notSuitablePrintf(entry, "no root= entry found\n");	dev = line->elements[i].item + 5;
2151	/* it failed too...  can't find root= */	else {
2152	return 0;	notSuitablePrintf(entry, 0,
2153	}	"no root= entry found\n");
2154		/* it failed too...  can't find root= */
2155		return 0;
2156		}
2157		}
2158	}	}
	}
2159
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2160	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2161		if (!getpathbyspec(dev)) {
2162		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2163		dev);
2164		return 0;
2165		} else
2166		dev = getpathbyspec(dev);
2167
2168	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2169	if (!rootdev) {	if (!rootdev) {
2170	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2171	return 0;	return 0;
2172	}	}
2173
2174	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2175	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2176	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2177	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2178	return 0;	free(rootdev);
2179	}	return 0;
2180		}
2181
2182	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2183	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2184	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2185	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2186	return 0;	free(rootdev);
2187	}	return 0;
2188		}
2189
2190	free(rootdev);	free(rootdev);
2191		notSuitablePrintf(entry, 1, "\n");
2192
2193	return 1;	return 1;
2194	}	}
2195
2196	/* 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
2197	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2198	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2199	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2200	int * index) {	int *index)
2201	struct singleEntry * entry = NULL;	{
2202	struct singleLine * line;	struct singleEntry *entry = NULL;
2203	int i;	struct singleLine *line;
2204	char * chptr;	int i;
2205	char * rootspec = NULL;	char *chptr;
2206	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2207		enum lineType_e checkType = LT_KERNEL;
2208	if (isdigit(*kernel)) {
2209	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2210		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2211
2212		i = 0;
2213		indexVars[i] = strtol(kernel, &chptr, 10);
2214		while (*chptr == ',') {
2215		i++;
2216		kernel = chptr + 1;
2217		indexVars[i] = strtol(kernel, &chptr, 10);
2218		}
2219
2220	i = 0;	if (*chptr) {
2221	indexVars[i] = strtol(kernel, &chptr, 10);	/* can't parse it, bail */
2222	while (*chptr == ',') {	return NULL;
2223	i++;	}
	kernel = chptr + 1;
	indexVars[i] = strtol(kernel, &chptr, 10);
	}
2224
2225	if (*chptr) {	indexVars[i + 1] = -1;
	/* can't parse it, bail */
	return NULL;
	}
2226
2227	indexVars[i + 1] = -1;	i = 0;
2228		if (index) {
2229	i = 0;	while (i < *index) {
2230	if (index) {	i++;
2231	while (i < *index) i++;	if (indexVars[i] == -1)
2232	if (indexVars[i] == -1) return NULL;	return NULL;
2233	}	}
2234		}
2235
2236	entry = findEntryByIndex(config, indexVars[i]);	entry = findEntryByIndex(config, indexVars[i]);
2237	if (!entry) return NULL;	if (!entry)
2238		return NULL;
2239
2240		line =
2241		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2242		LT_KERNEL_16, entry->lines);
2243		if (!line)
2244		return NULL;
2245
2246		if (index)
2247		*index = indexVars[i];
2248		return entry;
2249		}
2250
2251		if (!strcmp(kernel, "DEFAULT")) {
2252		if (index && *index > config->defaultImage) {
2253		entry = NULL;
2254		} else {
2255		entry = findEntryByIndex(config, config->defaultImage);
2256		if (entry && entry->skip)
2257		entry = NULL;
2258		else if (index)
2259		*index = config->defaultImage;
2260		}
2261		} else if (!strcmp(kernel, "ALL")) {
2262		if (index)
2263		i = *index;
2264		else
2265		i = 0;
2266
2267	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	while ((entry = findEntryByIndex(config, i))) {
2268	if (!line) return NULL;	if (!entry->skip)
2269		break;
2270		i++;
2271		}
2272
2273	if (index) *index = indexVars[i];	if (entry && index)
2274	return entry;	*index = i;
	}
	if (!strcmp(kernel, "DEFAULT")) {
	if (index && *index > config->defaultImage) {
	entry = NULL;
2275	} else {	} else {
2276	entry = findEntryByIndex(config, config->defaultImage);	if (index)
2277	if (entry && entry->skip)	i = *index;
2278	entry = NULL;	else
2279	else if (index)	i = 0;
2280	*index = config->defaultImage;
2281	}	if (!strncmp(kernel, "TITLE=", 6)) {
2282	} else if (!strcmp(kernel, "ALL")) {	prefix = "";
2283	if (index)	checkType = LT_TITLE | LT_MENUENTRY;
2284	i = *index;	kernel += 6;
2285	else	}
	i = 0;
2286
2287	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2288	if (!entry->skip) break;	entry = entry->next, i++) {
2289	i++;	if (entry->skip)
2290		continue;
2291
2292		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2293		checkType, kernel, entry);
2294
2295		/* check all the lines matching checkType */
2296		for (line = entry->lines; line; line = line->next) {
2297		enum lineType_e ct = checkType;
2298		if (entry->multiboot && checkType == LT_KERNEL)
2299		ct = LT_KERNEL | LT_KERNEL_EFI |
2300		LT_MBMODULE | LT_HYPER |
2301		LT_KERNEL_16;
2302		else if (checkType & LT_KERNEL)
2303		ct = checkType | LT_KERNEL_EFI |
2304		LT_KERNEL_16;
2305		line = getLineByType(ct, line);
2306		if (!line)
2307		break; /* not found in this entry */
2308
2309		if (line && line->type != LT_MENUENTRY &&
2310		line->numElements >= 2) {
2311		rootspec =
2312		getRootSpecifier(line->elements[1].
2313		item);
2314		if (!strcmp
2315		(line->elements[1].item +
2316		((rootspec !=
2317		NULL) ? strlen(rootspec) : 0),
2318		kernel + strlen(prefix)))
2319		break;
2320		}
2321		if (line->type == LT_MENUENTRY &&
2322		!strcmp(line->elements[1].item, kernel))
2323		break;
2324		}
2325
2326		/* make sure this entry has a kernel identifier; this skips
2327		* non-Linux boot entries (could find netbsd etc, though, which is
2328		* unfortunate)
2329		*/
2330		if (line
2331		&& getLineByType(LT_KERNEL | LT_HYPER |
2332		LT_KERNEL_EFI | LT_KERNEL_16,
2333		entry->lines))
2334		break; /* found 'im! */
2335		}
2336
2337		if (index)
2338		*index = i;
2339	}	}
2340
2341	if (entry && index)	return entry;
2342	*index = i;	}
	} else {
	if (index)
	i = *index;
	else
	i = 0;
2343
2344	if (!strncmp(kernel, "TITLE=", 6)) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2345	prefix = "";	int *index)
2346	checkType = LT_TITLE|LT_MENUENTRY;	{
2347	kernel += 6;	struct singleEntry *entry;
2348	}	struct singleLine *line;
2349		int i;
2350	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	char *newtitle;
2351	if (entry->skip) continue;
2352		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2353	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);	if (index && i < *index)
2354		continue;
2355	/* check all the lines matching checkType */	line = getLineByType(LT_TITLE, entry->lines);
2356	for (line = entry->lines; line; line = line->next) {	if (!line)
2357	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?	line = getLineByType(LT_MENUENTRY, entry->lines);
2358	LT_KERNEL|LT_MBMODULE|LT_HYPER :	if (!line)
2359	checkType, line);	continue;
2360	if (!line) break;  /* not found in this entry */	newtitle = grub2ExtractTitle(line);
2361		if (!newtitle)
2362	if (line && line->type != LT_MENUENTRY &&	continue;
2363	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)))
2364	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! */
2365	}	}
2366
2367	if (index) *index = i;	if (!entry)
2368	}	return NULL;
2369
2370	return entry;	if (index)
2371		*index = i;
2372		return entry;
2373	}	}
2374
2375	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2376	struct singleEntry * entry;	{
2377		struct singleEntry *entry;
2378
2379	entry = cfg->entries;	entry = cfg->entries;
2380	while (index && entry) {	while (index && entry) {
2381	entry = entry->next;	entry = entry->next;
2382	index--;	index--;
2383	}	}
2384
2385	return entry;	return entry;
2386	}	}
2387
2388	/* 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 1796  struct singleEntry * findEntryByIndex(st	Line 2390  struct singleEntry * findEntryByIndex(st
2390	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2391	* 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,
2392	* bail. */	* bail. */
2393	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2394	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2395	struct singleEntry * entry, * entry2;	{
2396	int index;	struct singleEntry *entry, *entry2;
2397		int index;
2398	if (cfg->defaultImage > -1) {
2399	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2400	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2401	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2402	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2403		if (defTitle) {
2404		int index = 0;
2405		if (isnumber(defTitle)) {
2406		index = atoi(defTitle);
2407		entry = findEntryByIndex(cfg, index);
2408		} else {
2409		entry =
2410		findEntryByTitle(cfg, defTitle,
2411		&index);
2412		}
2413		if (entry
2414		&& suitableImage(entry, prefix, skipRemoved,
2415		flags)) {
2416		cfg->defaultImage = index;
2417		if (indexPtr)
2418		*indexPtr = index;
2419		return entry;
2420		}
2421		}
2422		}
2423		} else if (cfg->defaultImage > -1) {
2424		entry = findEntryByIndex(cfg, cfg->defaultImage);
2425		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2426		if (indexPtr)
2427		*indexPtr = cfg->defaultImage;
2428		return entry;
2429		}
2430	}	}
	}
2431
2432	index = 0;	index = 0;
2433	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2434	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2435	int j;	int j;
2436	for (j = 0; j < index; j++) {	for (j = 0; j < index; j++) {
2437	entry2 = findEntryByIndex(cfg, j);	entry2 = findEntryByIndex(cfg, j);
2438	if (entry2->skip) index--;	if (entry2->skip)
2439	}	index--;
2440	if (indexPtr) *indexPtr = index;	}
2441		if (indexPtr)
2442		*indexPtr = index;
2443
2444	return entry;	return entry;
2445	}	}
2446
2447	index++;	index++;
2448	}	}
2449
2450	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2451		_("grubby fatal error: unable to find a suitable template\n"));
2452
2453	return NULL;	return NULL;
2454	}	}
2455
2456	char * findBootPrefix(void) {	char *findBootPrefix(void)
2457	struct stat sb, sb2;	{
2458		struct stat sb, sb2;
2459
2460	stat("/", &sb);	stat("/", &sb);
2461	#ifdef __ia64__	#ifdef __ia64__
2462	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2463	#else	#else
2464	stat("/boot", &sb2);	stat("/boot", &sb2);
2465	#endif	#endif
2466
2467	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2468	return strdup("");	return strdup("");
2469
2470	#ifdef __ia64__	#ifdef __ia64__
2471	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2472	#else	#else
2473	return strdup("/boot");	return strdup("/boot");
2474	#endif	#endif
2475	}	}
2476
2477	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2478	const char * prefix) {	const char *prefix)
2479	struct singleEntry * entry;	{
2480		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;
	}
2481
2482	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))	if (!image)
2483	entry->skip = 1;	return;
	}
2484
2485	void setDefaultImage(struct grubConfig * config, int hasNew,	/* check and see if we're removing the default image */
2486	const char * defaultKernelPath, int newIsDefault,	if (isdigit(*image)) {
2487	const char * prefix, int flags, int index) {	entry = findEntryByPath(cfg, image, prefix, NULL);
2488	struct singleEntry * entry, * entry2, * newDefault;	if (entry)
2489	int i, j;	entry->skip = 1;
2490		return;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if ((index >= 0) && config->cfi->defaultIsIndex) {
	if (findEntryByIndex(config, index))
	config->defaultImage = index;
	else
	config->defaultImage = -1;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
2491	}	}
	}
2492
2493	/* defaultImage now points to what we'd like to use, but before any order	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2494	changes */	entry->skip = 1;
	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;
	if (entry && !entry->skip) {
	/* we can preserve the default */
	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;
	}
2495	}	}
2496
2497	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int hasNew,
2498	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newIsDefault,
2499	int j;	const char *prefix, int flags, int index)
2500		{
2501	if (config->fallbackImage == -1) return;	struct singleEntry *entry, *entry2, *newDefault;
2502		int i, j;
	entry = findEntryByIndex(config, config->fallbackImage);
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2503
2504	if (hasNew)	if (newIsDefault) {
2505	config->fallbackImage++;	config->defaultImage = 0;
2506		return;
2507	/* count the number of entries erased before this one */	} else if ((index >= 0) && config->cfi->defaultIsIndex) {
2508	for (j = 0; j < config->fallbackImage; j++) {	if (findEntryByIndex(config, index))
2509	entry2 = findEntryByIndex(config, j);	config->defaultImage = index;
2510	if (entry2->skip) config->fallbackImage--;	else
2511	}	config->defaultImage = -1;
2512	}	return;
2513		} else if (defaultKernelPath) {
2514		i = 0;
2515		if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
2516		config->defaultImage = i;
2517		} else {
2518		config->defaultImage = -1;
2519		return;
2520		}
2521		}
2522
2523	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* defaultImage now points to what we'd like to use, but before any
2524	struct singleLine * line;	* order changes */
2525	char * root = NULL;	if ((config->defaultImage == DEFAULT_SAVED) ||
2526	int i;	(config->defaultImage == DEFAULT_SAVED_GRUB2))
2527		/* default is set to saved, we don't want to change it */
2528	printf("index=%d\n", index);	return;
	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);
	if (!line) {
	printf("non linux entry\n");
	return;
	}
2529
2530	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	if (config->defaultImage > -1)
2531	printf("kernel=%s\n", line->elements[1].item);	entry = findEntryByIndex(config, config->defaultImage);
2532	else	else
2533	printf("kernel=%s%s\n", prefix, line->elements[1].item);	entry = NULL;
	if (line->numElements >= 3) {
	printf("args=\"");
	i = 2;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2534
2535	i++;	if (entry && !entry->skip) {
2536		/* we can preserve the default */
2537		if (hasNew)
2538		config->defaultImage++;
2539
2540		/* count the number of entries erased before this one */
2541		for (j = 0; j < config->defaultImage; j++) {
2542		entry2 = findEntryByIndex(config, j);
2543		if (entry2->skip)
2544		config->defaultImage--;
2545		}
2546		} else if (hasNew) {
2547		config->defaultImage = 0;
2548		} else {
2549		/* Either we just erased the default (or the default line was
2550		* bad to begin with) and didn't put a new one in. We'll use
2551		* the first valid image. */
2552		newDefault =
2553		findTemplate(config, prefix, &config->defaultImage, 1,
2554		flags);
2555		if (!newDefault)
2556		config->defaultImage = -1;
2557	}	}
2558	printf("\"\n");	}
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2559
2560	printf("args=\"");	void setFallbackImage(struct grubConfig *config, int hasNew)
2561	i = 1;	{
2562	while (i < line->numElements) {	struct singleEntry *entry, *entry2;
2563	if (!strncmp(line->elements[i].item, "root=", 5)) {	int j;
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2564
2565	printf("%s%s", s, line->elements[i].indent);	if (config->fallbackImage == -1)
2566	}	return;
2567
2568	i++;	entry = findEntryByIndex(config, config->fallbackImage);
2569	}	if (!entry || entry->skip) {
2570		config->fallbackImage = -1;
2571		return;
2572		}
2573
2574	s = line->elements[i - 1].indent;	if (hasNew)
2575	printf("\"\n");	config->fallbackImage++;
2576
2577		/* count the number of entries erased before this one */
2578		for (j = 0; j < config->fallbackImage; j++) {
2579		entry2 = findEntryByIndex(config, j);
2580		if (entry2->skip)
2581		config->fallbackImage--;
2582	}	}
2583	}	}
2584
2585	if (!root) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2586	line = getLineByType(LT_ROOT, entry->lines);	{
2587	if (line && line->numElements >= 2)	struct singleLine *line;
2588	root=line->elements[1].item;	char *root = NULL;
2589	}	int i;
2590		int j;
2591
2592	if (root) {	printf("index=%d\n", index);
	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);
	}
2593
2594	line = getLineByType(LT_INITRD, entry->lines);	line =
2595		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2596		entry->lines);
2597		if (!line) {
2598		printf("non linux entry\n");
2599		return;
2600		}
2601
	if (line && line->numElements >= 2) {
2602	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2603	printf("initrd=");	printf("kernel=%s\n", line->elements[1].item);
2604	else	else
2605	printf("initrd=%s", prefix);	printf("kernel=%s%s\n", prefix, line->elements[1].item);
2606
2607	for (i = 1; i < line->numElements; i++)	if (line->numElements >= 3) {
2608	printf("%s%s", line->elements[i].item, line->elements[i].indent);	printf("args=\"");
2609	printf("\n");	i = 2;
2610	}	while (i < line->numElements) {
2611		if (!strncmp(line->elements[i].item, "root=", 5)) {
2612		root = line->elements[i].item + 5;
2613		} else {
2614		printf("%s%s", line->elements[i].item,
2615		line->elements[i].indent);
2616		}
2617
2618	line = getLineByType(LT_TITLE, entry->lines);	i++;
2619	if (line) {	}
2620	printf("title=%s\n", line->elements[1].item);	printf("\"\n");
2621	} else {	} else {
2622	char * title;	line = getLineByType(LT_KERNELARGS, entry->lines);
2623	line = getLineByType(LT_MENUENTRY, entry->lines);	if (line) {
2624	title = grub2ExtractTitle(line);	char *s;
2625	if (title)
2626	printf("title=%s\n", title);	printf("args=\"");
2627	}	i = 1;
2628	}	while (i < line->numElements) {
2629		if (!strncmp
2630		(line->elements[i].item, "root=", 5)) {
2631		root = line->elements[i].item + 5;
2632		} else {
2633		s = line->elements[i].item;
2634
2635	int isSuseSystem(void) {	printf("%s%s", s,
2636	const char * path;	line->elements[i].indent);
2637	const static char default_path[] = "/etc/SuSE-release";	}
2638
2639	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)	i++;
2640	path = default_path;	}
2641
2642	if (!access(path, R_OK))	s = line->elements[i - 1].indent;
2643	return 1;	printf("\"\n");
2644	return 0;	}
2645	}	}
2646
2647	int isSuseGrubConf(const char * path) {	if (!root) {
2648	FILE * grubConf;	line = getLineByType(LT_ROOT, entry->lines);
2649	char * line = NULL;	if (line && line->numElements >= 2)
2650	size_t len = 0, res = 0;	root = line->elements[1].item;
2651		}
2652	grubConf = fopen(path, "r");
2653	if (!grubConf) {	if (root) {
2654	dbgPrintf("Could not open SuSE configuration file '%s'\n", path);	char *s = alloca(strlen(root) + 1);
	return 0;
	}
2655
2656	while ((res = getline(&line, &len, grubConf)) != -1) {	strcpy(s, root);
2657	if (!strncmp(line, "setup", 5)) {	if (s[strlen(s) - 1] == '"')
2658	fclose(grubConf);	s[strlen(s) - 1] = '\0';
2659	free(line);	/* make sure the root doesn't have a trailing " */
2660	return 1;	printf("root=%s\n", s);
2661	}	}
	}
2662
2663	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",	line =
2664	path);	getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2665		entry->lines);
2666
2667	fclose(grubConf);	if (line && line->numElements >= 2) {
2668	free(line);	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2669	return 0;	printf("initrd=");
2670	}	else
2671		printf("initrd=%s", prefix);
2672
2673	int suseGrubConfGetLba(const char * path, int * lbaPtr) {	for (i = 1; i < line->numElements; i++)
2674	FILE * grubConf;	printf("%s%s", line->elements[i].item,
2675	char * line = NULL;	line->elements[i].indent);
2676	size_t res = 0, len = 0;	printf("\n");
	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';
2677	}	}
2678
2679	if (!strncmp(line, "setup", 5)) {	line = getLineByType(LT_TITLE, entry->lines);
2680	if (strstr(line, "--force-lba")) {	if (line) {
2681	*lbaPtr = 1;	printf("title=%s\n", line->elements[1].item);
2682	} else {	} else {
2683	*lbaPtr = 0;	char *title;
2684	}	line = getLineByType(LT_MENUENTRY, entry->lines);
2685	dbgPrintf("lba: %i\n", *lbaPtr);	if (line) {
2686	break;	title = grub2ExtractTitle(line);
2687		if (title)
2688		printf("title=%s\n", title);
2689		}
2690	}	}
	}
	free(line);
	fclose(grubConf);
	return 0;
	}
2691
2692	int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) {	for (j = 0, line = entry->lines; line; line = line->next) {
2693	FILE * grubConf;	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2694	char * line = NULL;	if (!strncmp
2695	size_t res = 0, len = 0;	(prefix, line->elements[1].item, strlen(prefix)))
2696	char * lastParamPtr = NULL;	printf("mbmodule%d=", j);
2697	char * secLastParamPtr = NULL;	else
2698	char installDeviceNumber = '\0';	printf("mbmodule%d=%s", j, prefix);
2699	char * bounds = NULL;
2700		for (i = 1; i < line->numElements; i++)
2701	if (!path) return 1;	printf("%s%s", line->elements[i].item,
2702	if (!devicePtr) return 1;	line->elements[i].indent);
2703		printf("\n");
2704	grubConf = fopen(path, "r");	j++;
2705	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';
2706	}	}
2707		}
2708
2709	lastParamPtr = bounds = line + res;	int isSuseSystem(void)
2710		{
2711		const char *path;
2712		const static char default_path[] = "/etc/SuSE-release";
2713
2714	/* Last parameter in grub may be an optional IMAGE_DEVICE */	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2715	while (!isspace(*lastParamPtr))	path = default_path;
	lastParamPtr--;
	lastParamPtr++;
2716
2717	secLastParamPtr = lastParamPtr - 2;	if (!access(path, R_OK))
2718	dbgPrintf("lastParamPtr: %s\n", lastParamPtr);	return 1;
2719		return 0;
2720		}
2721
2722	if (lastParamPtr + 3 > bounds) {	int isSuseGrubConf(const char *path)
2723	dbgPrintf("lastParamPtr going over boundary");	{
2724	fclose(grubConf);	FILE *grubConf;
2725	free(line);	char *line = NULL;
2726	return 1;	size_t len = 0, res = 0;
2727
2728		grubConf = fopen(path, "r");
2729		if (!grubConf) {
2730		dbgPrintf("Could not open SuSE configuration file '%s'\n",
2731		path);
2732		return 0;
2733	}	}
	if (!strncmp(lastParamPtr, "(hd", 3))
	lastParamPtr += 3;
	dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2734
2735	/*	while ((res = getline(&line, &len, grubConf)) != -1) {
2736	* Second last parameter will decide wether last parameter is	if (!strncmp(line, "setup", 5)) {
2737	* an IMAGE_DEVICE or INSTALL_DEVICE	fclose(grubConf);
2738	*/	free(line);
2739	while (!isspace(*secLastParamPtr))	return 1;
2740	secLastParamPtr--;	}
	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;
2741	}	}
2742
2743	*devicePtr = malloc(6);	dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2744	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);	path);
2745	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2746	fclose(grubConf);	fclose(grubConf);
2747	free(line);	free(line);
2748	return 0;	return 0;
2749	}	}
	free(line);
	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;
2750
2751	while ((res = getline(&line, &len, deviceMap)) != -1) {	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2752	if (!strncmp(line, "#", 1))	{
2753	continue;	FILE *grubConf;
2754		char *line = NULL;
2755	if (line[res - 1] == '\n')	size_t res = 0, len = 0;
	line[res - 1] = '\0';
	else if (len > res)
	line[res] = '\0';
	else {
	line = realloc(line, res + 1);
	line[res] = '\0';
	}
2756
2757	devicePtr = line;	if (!path)
2758	bounds = line + res;	return 1;
2759		if (!lbaPtr)
2760		return 1;
2761
2762	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))	grubConf = fopen(path, "r");
2763	devicePtr++;	if (!grubConf)
2764	dbgPrintf("device: %s\n", devicePtr);	return 1;
2765
2766	if (!strncmp(devicePtr, device, strlen(device))) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2767	devicePtr += strlen(device);	if (line[res - 1] == '\n')
2768	while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds))	line[res - 1] = '\0';
2769	devicePtr++;	else if (len > res)
2770		line[res] = '\0';
2771		else {
2772		line = realloc(line, res + 1);
2773		line[res] = '\0';
2774		}
2775
2776	*bootPtr = strdup(devicePtr);	if (!strncmp(line, "setup", 5)) {
2777	break;	if (strstr(line, "--force-lba")) {
2778		*lbaPtr = 1;
2779		} else {
2780		*lbaPtr = 0;
2781		}
2782		dbgPrintf("lba: %i\n", *lbaPtr);
2783		break;
2784		}
2785	}	}
	}
2786
2787	free(line);	free(line);
2788	fclose(deviceMap);	fclose(grubConf);
2789	return 0;	return 0;
2790	}	}
2791
2792	int suseGrubConfGetBoot(const char * path, char ** bootPtr) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2793	char * grubDevice;	{
2794		FILE *grubConf;
2795		char *line = NULL;
2796		size_t res = 0, len = 0;
2797		char *lastParamPtr = NULL;
2798		char *secLastParamPtr = NULL;
2799		char installDeviceNumber = '\0';
2800		char *bounds = NULL;
2801
2802	if (suseGrubConfGetInstallDevice(path, &grubDevice))	if (!path)
2803	dbgPrintf("error looking for grub installation device\n");	return 1;
2804	else	if (!devicePtr)
2805	dbgPrintf("grubby installation device: %s\n", grubDevice);	return 1;
	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
	dbgPrintf("error looking for grub boot device\n");
	else
	dbgPrintf("grubby boot device: %s\n", *bootPtr);
2806
2807	free(grubDevice);	grubConf = fopen(path, "r");
2808	return 0;	if (!grubConf)
2809	}	return 1;
2810
2811	int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2812	/*	if (strncmp(line, "setup", 5))
2813	* This SuSE grub configuration file at this location is not your average	continue;
2814	* grub configuration file, but instead the grub commands used to setup
2815	* grub on that system.	if (line[res - 1] == '\n')
2816	*/	line[res - 1] = '\0';
2817	const char * path;	else if (len > res)
2818	const static char default_path[] = "/etc/grub.conf";	line[res] = '\0';
2819		else {
2820	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)	line = realloc(line, res + 1);
2821	path = default_path;	line[res] = '\0';
2822		}
	if (!isSuseGrubConf(path)) return 1;
	if (lbaPtr) {
	*lbaPtr = 0;
	if (suseGrubConfGetLba(path, lbaPtr))
	return 1;
	}
2823
2824	if (bootPtr) {	lastParamPtr = bounds = line + res;
	*bootPtr = NULL;
	suseGrubConfGetBoot(path, bootPtr);
	}
2825
2826	return 0;	/* Last parameter in grub may be an optional IMAGE_DEVICE */
2827		while (!isspace(*lastParamPtr))
2828		lastParamPtr--;
2829		lastParamPtr++;
2830
2831		secLastParamPtr = lastParamPtr - 2;
2832		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2833
2834		if (lastParamPtr + 3 > bounds) {
2835		dbgPrintf("lastParamPtr going over boundary");
2836		fclose(grubConf);
2837		free(line);
2838		return 1;
2839		}
2840		if (!strncmp(lastParamPtr, "(hd", 3))
2841		lastParamPtr += 3;
2842		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2843
2844		/*
2845		* Second last parameter will decide wether last parameter is
2846		* an IMAGE_DEVICE or INSTALL_DEVICE
2847		*/
2848		while (!isspace(*secLastParamPtr))
2849		secLastParamPtr--;
2850		secLastParamPtr++;
2851
2852		if (secLastParamPtr + 3 > bounds) {
2853		dbgPrintf("secLastParamPtr going over boundary");
2854		fclose(grubConf);
2855		free(line);
2856		return 1;
2857		}
2858		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2859		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2860		secLastParamPtr += 3;
2861		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2862		installDeviceNumber = *secLastParamPtr;
2863		} else {
2864		installDeviceNumber = *lastParamPtr;
2865		}
2866
2867		*devicePtr = malloc(6);
2868		snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2869		dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2870		fclose(grubConf);
2871		free(line);
2872		return 0;
2873		}
2874
2875		free(line);
2876		fclose(grubConf);
2877		return 1;
2878	}	}
2879
2880	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2881	FILE * in;	{
2882	char buf[1024];	FILE *deviceMap;
2883	char * chptr;	char *line = NULL;
2884	char * start;	size_t res = 0, len = 0;
2885	char * param;	char *devicePtr;
2886		char *bounds = NULL;
2887	in = fopen("/etc/conf.d/grub", "r");	const char *path;
2888	if (!in) return 1;	const static char default_path[] = "/boot/grub/device.map";
	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);
	}
2889
2890	fclose(in);	if (!device)
2891		return 1;
2892		if (!bootPtr)
2893		return 1;
2894
2895	return 0;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2896	}	path = default_path;
2897
2898	void dumpSysconfigGrub(void) {	dbgPrintf("opening grub device.map file from: %s\n", path);
2899	char * boot = NULL;	deviceMap = fopen(path, "r");
2900	int lba;	if (!deviceMap)
2901		return 1;
	if (isSuseSystem()) {
	if (parseSuseGrubConf(&lba, &boot)) {
	free(boot);
	return;
	}
	} else {
	if (parseSysconfigGrub(&lba, &boot)) {
	free(boot);
	return;
	}
	}
2902
2903	if (lba) printf("lba\n");	while ((res = getline(&line, &len, deviceMap)) != -1) {
2904	if (boot) {	if (!strncmp(line, "#", 1))
2905	printf("boot=%s\n", boot);	continue;
2906	free(boot);
2907	}	if (line[res - 1] == '\n')
2908	}	line[res - 1] = '\0';
2909		else if (len > res)
2910		line[res] = '\0';
2911		else {
2912		line = realloc(line, res + 1);
2913		line[res] = '\0';
2914		}
2915
2916	int displayInfo(struct grubConfig * config, char * kernel,	devicePtr = line;
2917	const char * prefix) {	bounds = line + res;
	int i = 0;
	struct singleEntry * entry;
	struct singleLine * line;
	entry = findEntryByPath(config, kernel, prefix, &i);
	if (!entry) {
	fprintf(stderr, _("grubby: kernel not found\n"));
	return 1;
	}
2918
2919	/* this is a horrible hack to support /etc/conf.d/grub; there must	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2920	be a better way */	devicePtr++;
2921	if (config->cfi == &grubConfigType) {	dbgPrintf("device: %s\n", devicePtr);
2922	dumpSysconfigGrub();
2923	} else {	if (!strncmp(devicePtr, device, strlen(device))) {
2924	line = getLineByType(LT_BOOT, config->theLines);	devicePtr += strlen(device);
2925	if (line && line->numElements >= 1) {	while (isspace(*devicePtr)
2926	printf("boot=%s\n", line->elements[1].item);	&& ((devicePtr + 1) <= bounds))
2927		devicePtr++;
2928
2929		*bootPtr = strdup(devicePtr);
2930		break;
2931		}
2932	}	}
2933
2934	line = getLineByType(LT_LBA, config->theLines);	free(line);
2935	if (line) printf("lba\n");	fclose(deviceMap);
2936	}	return 0;
2937		}
2938
2939	displayEntry(entry, prefix, i);	int suseGrubConfGetBoot(const char *path, char **bootPtr)
2940		{
2941		char *grubDevice;
2942
2943	i++;	if (suseGrubConfGetInstallDevice(path, &grubDevice))
2944	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	dbgPrintf("error looking for grub installation device\n");
2945	displayEntry(entry, prefix, i);	else
2946	i++;	dbgPrintf("grubby installation device: %s\n", grubDevice);
	}
2947
2948	return 0;	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
2949		dbgPrintf("error looking for grub boot device\n");
2950		else
2951		dbgPrintf("grubby boot device: %s\n", *bootPtr);
2952
2953		free(grubDevice);
2954		return 0;
2955	}	}
2956
2957	struct singleLine * addLineTmpl(struct singleEntry * entry,	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
2958	struct singleLine * tmplLine,	{
2959	struct singleLine * prevLine,	/*
2960	const char * val,	* This SuSE grub configuration file at this location is not your
2961	struct configFileInfo * cfi)	* average grub configuration file, but instead the grub commands
2962	{	* used to setup grub on that system.
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[1]
2963	*/	*/
2964	if (newLine->numElements > 1)	const char *path;
2965	removeElement(newLine, 1);	const static char default_path[] = "/etc/grub.conf";
	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);
	}
	}
	}
2966
2967	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
2968	newLine->elements[0].item : "");	path = default_path;
2969
2970	if (!entry->lines) {	if (!isSuseGrubConf(path))
2971	/* first one on the list */	return 1;
	entry->lines = newLine;
	} else if (prevLine) {
	/* add after prevLine */
	newLine->next = prevLine->next;
	prevLine->next = newLine;
	}
2972
2973	return newLine;	if (lbaPtr) {
2974	}	*lbaPtr = 0;
2975		if (suseGrubConfGetLba(path, lbaPtr))
2976		return 1;
2977		}
2978
2979	/* val may be NULL */	if (bootPtr) {
2980	struct singleLine *  addLine(struct singleEntry * entry,	*bootPtr = NULL;
2981	struct configFileInfo * cfi,	suseGrubConfGetBoot(path, bootPtr);
	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 = "";
2982	}	}
	}
2983
2984	/* The last non-empty line gives us the indention to us and the line	return 0;
2985	to insert after. Note that comments are considered empty lines, which	}
	may not be ideal? If there are no lines or we are looking at the
	first line, we use defaultIndent (the first line is normally indented
	differently from the rest) */
	for (line = entry->lines, prev = NULL; line; line = line->next) {
	if (line->numElements) prev = line;
	/* fall back on the last line if prev isn't otherwise set */
	if (!line->next && !prev) prev = line;
	}
2986
2987	struct singleLine *menuEntry;	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
2988	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	{
2989	if (tmpl.type == LT_ENTRY_END) {	FILE *in;
2990	if (menuEntry)	char buf[1024];
2991	tmpl.indent = menuEntry->indent;	char *chptr;
2992	else	char *start;
2993	tmpl.indent = defaultIndent ?: "";	char *param;
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
	else
	tmpl.indent = prev->indent;
	}
2994
2995	return addLineTmpl(entry, &tmpl, prev, val, cfi);	in = fopen("/etc/sysconfig/grub", "r");
2996	}	if (!in)
2997		return 1;
2998
2999	void removeLine(struct singleEntry * entry, struct singleLine * line) {	if (lbaPtr)
3000	struct singleLine * prev;	*lbaPtr = 0;
3001	int i;	if (bootPtr)
3002		*bootPtr = NULL;
3003
3004		while (fgets(buf, sizeof(buf), in)) {
3005		start = buf;
3006		while (isspace(*start))
3007		start++;
3008		if (*start == '#')
3009		continue;
3010
3011		chptr = strchr(start, '=');
3012		if (!chptr)
3013		continue;
3014		chptr--;
3015		while (*chptr && isspace(*chptr))
3016		chptr--;
3017		chptr++;
3018		*chptr = '\0';
3019
3020		param = chptr + 1;
3021		while (*param && isspace(*param))
3022		param++;
3023		if (*param == '=') {
3024		param++;
3025		while (*param && isspace(*param))
3026		param++;
3027		}
3028
3029	for (i = 0; i < line->numElements; i++) {	chptr = param;
3030	free(line->elements[i].item);	while (*chptr && !isspace(*chptr))
3031	free(line->elements[i].indent);	chptr++;
3032	}	*chptr = '\0';
3033	free(line->elements);
3034	free(line->indent);	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3035		*lbaPtr = 1;
3036		else if (!strcmp(start, "boot") && bootPtr)
3037		*bootPtr = strdup(param);
3038		}
3039
3040	if (line == entry->lines) {	fclose(in);
	entry->lines = line->next;
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
3041
3042	free(line);	return 0;
3043	}	}
3044
3045	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	void dumpSysconfigGrub(void)
3046	{	{
3047	struct singleLine newLine = {	char *boot = NULL;
3048	.indent = tmplLine->indent,	int lba;
3049	.type = tmplLine->type,
3050	.next = tmplLine->next,	if (isSuseSystem()) {
3051	};	if (parseSuseGrubConf(&lba, &boot)) {
3052	int firstQuotedItem = -1;	free(boot);
3053	int quoteLen = 0;	return;
3054	int j;	}
	int element = 0;
	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;
	}
3055	} else {	} else {
3056	int itemlen = strlen(tmplLine->elements[j].item);	if (parseSysconfigGrub(&lba, &boot)) {
3057	quoteLen += itemlen;	free(boot);
3058	quoteLen += strlen(tmplLine->elements[j].indent);	return;
3059		}
	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;
	}
3060	}	}
	}
	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;
	}
	line->elements = realloc(line->elements, (line->numElements + 1) *
	sizeof(*line->elements));
	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] = ' ';
	}
3061
3062	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	if (lba)
3063	/* move the end-of-line forward */	printf("lba\n");
3064	line->elements[insertHere].indent =	if (boot) {
3065	line->elements[insertHere-1].indent;	printf("boot=%s\n", boot);
3066	line->elements[insertHere-1].indent = strdup(indent);	free(boot);
3067	} else {	}
3068	line->elements[insertHere].indent = strdup(indent);	}
	}
3069
3070	line->numElements++;	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3071		{
3072		int i = 0;
3073		struct singleEntry *entry;
3074		struct singleLine *line;
3075
3076		entry = findEntryByPath(config, kernel, prefix, &i);
3077		if (!entry) {
3078		fprintf(stderr, _("grubby: kernel not found\n"));
3079		return 1;
3080		}
3081
3082	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3083	line->elements[0].item,	be a better way */
3084	line->elements[insertHere].item,	if (config->cfi == &grubConfigType) {
3085	line->elements[insertHere].indent,	dumpSysconfigGrub();
3086	insertHere);	} else {
3087	}	line = getLineByType(LT_BOOT, config->theLines);
3088		if (line && line->numElements >= 1) {
3089		printf("boot=%s\n", line->elements[1].item);
3090		}
3091
3092	static void removeElement(struct singleLine * line, int removeHere) {	line = getLineByType(LT_LBA, config->theLines);
3093	int i;	if (line)
3094		printf("lba\n");
3095		}
3096
3097	/* sanity check */	displayEntry(entry, prefix, i);
	if (removeHere >= line->numElements) return;
3098
3099	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	i++;
3100	removeHere, line->elements[removeHere].item);	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3101		displayEntry(entry, prefix, i);
3102		i++;
3103		}
3104
3105	free(line->elements[removeHere].item);	return 0;
3106		}
3107
3108	if (removeHere > 1) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3109	/* previous argument gets this argument's post-indentation */	struct singleLine *tmplLine,
3110	free(line->elements[removeHere-1].indent);	struct singleLine *prevLine,
3111	line->elements[removeHere-1].indent =	const char *val, struct configFileInfo *cfi)
3112	line->elements[removeHere].indent;	{
3113	} else {	struct singleLine *newLine = lineDup(tmplLine);
	free(line->elements[removeHere].indent);
	}
3114
3115	/* now collapse the array, but don't bother to realloc smaller */	if (isEfi && cfi == &grub2ConfigType) {
3116	for (i = removeHere; i < line->numElements - 1; i++)	enum lineType_e old = newLine->type;
3117	line->elements[i] = line->elements[i + 1];	newLine->type = preferredLineType(newLine->type, cfi);
3118		if (old != newLine->type)
3119	line->numElements--;	newLine->elements[0].item =
3120	}	getKeyByType(newLine->type, cfi);
	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;
3121	}	}
	}
3122
3123	if (!removeArgs) {	if (val) {
3124	oldArgs = malloc(sizeof(*oldArgs));	/* override the inherited value with our own.
3125	*oldArgs = NULL;	* This is a little weak because it only applies to elements[1]
3126	} else {	*/
3127	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	if (newLine->numElements > 1)
3128	fprintf(stderr,	removeElement(newLine, 1);
3129	_("grubby: error separating arguments '%s'\n"), removeArgs);	insertElement(newLine, val, 1, cfi);
3130	free(newArgs);
3131	return 1;	/* but try to keep the rootspec from the template... sigh */
3132		if (tmplLine->
3133		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3134		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3135		LT_INITRD_16)) {
3136		char *rootspec =
3137		getRootSpecifier(tmplLine->elements[1].item);
3138		if (rootspec != NULL) {
3139		free(newLine->elements[1].item);
3140		newLine->elements[1].item =
3141		sdupprintf("%s%s", rootspec, val);
3142		}
3143		}
3144	}	}
	}
3145
3146		dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3147		newLine->elements[0].item : "");
3148
3149	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	if (!entry->lines) {
3150	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	/* first one on the list */
3151		entry->lines = newLine;
3152	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	} else if (prevLine) {
3153	&& !multibootArgs);	/* add after prevLine */
3154		newLine->next = prevLine->next;
3155		prevLine->next = newLine;
3156		}
3157
3158	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	return newLine;
3159		}
3160
3161	if (multibootArgs && !entry->multiboot)	/* val may be NULL */
3162	continue;	struct singleLine *addLine(struct singleEntry *entry,
3163		struct configFileInfo *cfi,
3164		enum lineType_e type, char *defaultIndent,
3165		const char *val)
3166		{
3167		struct singleLine *line, *prev;
3168		struct keywordTypes *kw;
3169		struct singleLine tmpl;
3170
3171	/* Determine where to put the args.  If this config supports	/* NB: This function shouldn't allocate items on the heap, rather on
3172	* LT_KERNELARGS, use that.  Otherwise use	* the stack since it calls addLineTmpl which will make copies.
	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3173	*/	*/
3174	if (useKernelArgs) {	if (type == LT_TITLE && cfi->titleBracketed) {
3175	line = getLineByType(LT_KERNELARGS, entry->lines);	/* we're doing a bracketed title (zipl) */
3176	if (!line) {	tmpl.type = type;
3177	/* no LT_KERNELARGS, need to add it */	tmpl.numElements = 1;
3178	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	tmpl.elements = alloca(sizeof(*tmpl.elements));
3179	cfg->secondaryIndent, NULL);	tmpl.elements[0].item = alloca(strlen(val) + 3);
3180	}	sprintf(tmpl.elements[0].item, "[%s]", val);
3181	firstElement = 1;	tmpl.elements[0].indent = "";
3182		val = NULL;
3183	} else if (multibootArgs) {	} else if (type == LT_MENUENTRY) {
3184	line = getLineByType(LT_HYPER, entry->lines);	char *lineend = "--class gnu-linux --class gnu --class os {";
3185	if (!line) {	if (!val) {
3186	/* a multiboot entry without LT_HYPER? */	fprintf(stderr,
3187	continue;	"Line type LT_MENUENTRY requires a value\n");
3188	}	abort();
3189	firstElement = 2;	}
3190		kw = getKeywordByType(type, cfi);
3191		if (!kw) {
3192		fprintf(stderr,
3193		"Looking up keyword for unknown type %d\n",
3194		type);
3195		abort();
3196		}
3197		tmpl.indent = "";
3198		tmpl.type = type;
3199		tmpl.numElements = 3;
3200		tmpl.elements =
3201		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3202		tmpl.elements[0].item = kw->key;
3203		tmpl.elements[0].indent = alloca(2);
3204		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3205		tmpl.elements[1].item = (char *)val;
3206		tmpl.elements[1].indent = alloca(2);
3207		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3208		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3209		strcpy(tmpl.elements[2].item, lineend);
3210		tmpl.elements[2].indent = "";
3211	} else {	} else {
3212	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);	kw = getKeywordByType(type, cfi);
3213	if (!line) {	if (!kw) {
3214	/* no LT_KERNEL or LT_MBMODULE in this entry? */	fprintf(stderr,
3215	continue;	"Looking up keyword for unknown type %d\n",
3216	}	type);
3217	firstElement = 2;	abort();
3218		}
3219		tmpl.type = type;
3220		tmpl.numElements = val ? 2 : 1;
3221		tmpl.elements =
3222		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3223		tmpl.elements[0].item = kw->key;
3224		tmpl.elements[0].indent = alloca(2);
3225		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3226		if (val) {
3227		tmpl.elements[1].item = (char *)val;
3228		tmpl.elements[1].indent = "";
3229		}
3230	}	}
3231
3232	/* handle the elilo case which does:	/* The last non-empty line gives us the indention to us and the line
3233	*   append="hypervisor args -- kernel args"	* to insert after. Note that comments are considered empty lines,
3234	*/	* which may not be ideal? If there are no lines or we are looking at
3235	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	* the first line, we use defaultIndent (the first line is normally
3236	/* this is a multiboot entry, make sure there's	* indented differently from the rest) */
3237	* -- on the args line	for (line = entry->lines, prev = NULL; line; line = line->next) {
3238	*/	if (line->numElements)
3239	for (i = firstElement; i < line->numElements; i++) {	prev = line;
3240	if (!strcmp(line->elements[i].item, "--"))	/* fall back on the last line if prev isn't otherwise set */
3241	break;	if (!line->next && !prev)
3242	}	prev = line;
3243	if (i == line->numElements) {	}
3244	/* assume all existing args are kernel args,
3245	* prepend -- to make it official	struct singleLine *menuEntry;
3246	*/	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3247	insertElement(line, "--", firstElement, cfg->cfi);	if (tmpl.type == LT_ENTRY_END) {
3248	i = firstElement;	if (menuEntry)
3249	}	tmpl.indent = menuEntry->indent;
3250	if (!multibootArgs) {	else
3251	/* kernel args start after the -- */	tmpl.indent = defaultIndent ? : "";
3252	firstElement = i + 1;	} else if (tmpl.type != LT_MENUENTRY) {
3253	}	if (menuEntry)
3254	} else if (cfg->cfi->mbConcatArgs) {	tmpl.indent = "\t";
3255	/* this is a non-multiboot entry, remove hyper args */	else if (prev == entry->lines)
3256	for (i = firstElement; i < line->numElements; i++) {	tmpl.indent = defaultIndent ? : "";
3257	if (!strcmp(line->elements[i].item, "--"))	else
3258	break;	tmpl.indent = prev->indent;
3259	}	}
	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;
	}
	}
3260
3261	if (i < line->numElements && doreplace) {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
3262	/* direct replacement */	}
	free(line->elements[i].item);
	line->elements[i].item = strdup(*arg);
3263
3264	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	void removeLine(struct singleEntry *entry, struct singleLine *line)
3265	/* root= replacement */	{
3266	rootLine = getLineByType(LT_ROOT, entry->lines);	struct singleLine *prev;
3267	if (rootLine) {	int i;
	free(rootLine->elements[1].item);
	rootLine->elements[1].item = strdup(*arg + 5);
	} else {
	rootLine = addLine(entry, cfg->cfi, LT_ROOT,
	cfg->secondaryIndent, *arg + 5);
	}
	}
3268
3269	else {	for (i = 0; i < line->numElements; i++) {
3270	/* insert/append */	free(line->elements[i].item);
3271	insertElement(line, *arg, i, cfg->cfi);	free(line->elements[i].indent);
	usedElements = realloc(usedElements, line->numElements *
	sizeof(*usedElements));
	memmove(&usedElements[i + 1], &usedElements[i],
	line->numElements - i - 1);
	usedElements[i] = 1;
	/* if we updated a root= here even though there is a
	LT_ROOT available we need to remove the LT_ROOT entry
	(this will happen if we switch from a device to a label) */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	}
	free(usedElements);
	for (arg = oldArgs; *arg; arg++) {
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	/* reached the end of hyper args, stop here */
	break;
	if (!argMatch(line->elements[i].item, *arg)) {
	removeElement(line, i);
	break;
	}
	}
	/* handle removing LT_ROOT line too */
	if (useRoot && !strncmp(*arg, "root=", 5)) {
	rootLine = getLineByType(LT_ROOT, entry->lines);
	if (rootLine)
	removeLine(entry, rootLine);
	}
	}
	if (line->numElements == 1) {
	/* don't need the line at all (note it has to be a
	LT_KERNELARGS for this to happen */
	removeLine(entry, line);
3272	}	}
3273	}	free(line->elements);
3274		free(line->indent);
3275
3276	free(newArgs);	if (line == entry->lines) {
3277	free(oldArgs);	entry->lines = line->next;
3278		} else {
3279		prev = entry->lines;
3280		while (prev->next != line)
3281		prev = prev->next;
3282		prev->next = line->next;
3283		}
3284
3285	return 0;	free(line);
3286	}	}
3287
3288	int updateImage(struct grubConfig * cfg, const char * image,	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3289	const char * prefix, const char * addArgs,	{
3290	const char * removeArgs,	struct singleLine newLine = {
3291	const char * addMBArgs, const char * removeMBArgs) {	.indent = tmplLine->indent,
3292	int rc = 0;	.type = tmplLine->type,
3293		.next = tmplLine->next,
3294	if (!image) return rc;	};
3295		int firstQuotedItem = -1;
3296	/* update the main args first... */	int quoteLen = 0;
3297	if (addArgs || removeArgs)	int j;
3298	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	int element = 0;
3299	if (rc) return rc;	char *c;
	/* 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)
	return 1;
	}
3300
3301	break;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3302	}	strcpy(c, tmplLine->elements[0].item);
3303		insertElement(&newLine, c, element++, cfi);
3304		free(c);
3305		c = NULL;
3306
3307		for (j = 1; j < tmplLine->numElements; j++) {
3308		if (firstQuotedItem == -1) {
3309		quoteLen += strlen(tmplLine->elements[j].item);
3310
3311		if (isquote(tmplLine->elements[j].item[0])) {
3312		firstQuotedItem = j;
3313		quoteLen +=
3314		strlen(tmplLine->elements[j].indent);
3315		} else {
3316		c = malloc(quoteLen + 1);
3317		strcpy(c, tmplLine->elements[j].item);
3318		insertElement(&newLine, c, element++, cfi);
3319		free(c);
3320		quoteLen = 0;
3321		}
3322		} else {
3323		int itemlen = strlen(tmplLine->elements[j].item);
3324		quoteLen += itemlen;
3325		quoteLen += strlen(tmplLine->elements[j].indent);
3326
3327		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3328		c = malloc(quoteLen + 1);
3329		c[0] = '\0';
3330		for (int i = firstQuotedItem; i < j + 1; i++) {
3331		strcat(c, tmplLine->elements[i].item);
3332		strcat(c, tmplLine->elements[i].indent);
3333		}
3334		insertElement(&newLine, c, element++, cfi);
3335		free(c);
3336
3337	return 0;	firstQuotedItem = -1;
3338		quoteLen = 0;
3339		}
3340		}
3341		}
3342		while (tmplLine->numElements)
3343		removeElement(tmplLine, 0);
3344		if (tmplLine->elements)
3345		free(tmplLine->elements);
3346
3347		tmplLine->numElements = newLine.numElements;
3348		tmplLine->elements = newLine.elements;
3349	}	}
3350
3351	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	static void insertElement(struct singleLine *line,
3352	int fd;	const char *item, int insertHere,
3353	unsigned char bootSect[512];	struct configFileInfo *cfi)
3354	int offset;	{
3355		struct keywordTypes *kw;
3356	fd = open(device, O_RDONLY);	char indent[2] = "";
	if (fd < 0) {
	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	if (read(fd, bootSect, 512) != 512) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	device, strerror(errno));
	return 1;
	}
	close(fd);
3357
3358	/* first three bytes should match, a jmp short should be in there */	/* sanity check */
3359	if (memcmp(boot, bootSect, 3))	if (insertHere > line->numElements) {
3360	return 0;	dbgPrintf
3361		("insertElement() adjusting insertHere from %d to %d\n",
3362		insertHere, line->numElements);
3363		insertHere = line->numElements;
3364		}
3365
3366		line->elements = realloc(line->elements, (line->numElements + 1) *
3367		sizeof(*line->elements));
3368		memmove(&line->elements[insertHere + 1],
3369		&line->elements[insertHere],
3370		(line->numElements - insertHere) * sizeof(*line->elements));
3371		line->elements[insertHere].item = strdup(item);
3372
3373		kw = getKeywordByType(line->type, cfi);
3374
3375		if (line->numElements == 0) {
3376		indent[0] = '\0';
3377		} else if (insertHere == 0) {
3378		indent[0] = kw->nextChar;
3379		} else if (kw->separatorChar != '\0') {
3380		indent[0] = kw->separatorChar;
3381		} else {
3382		indent[0] = ' ';
3383		}
3384
3385	if (boot[1] == JMP_SHORT_OPCODE) {	if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3386	offset = boot[2] + 2;	/* move the end-of-line forward */
3387	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	line->elements[insertHere].indent =
3388	offset = (boot[3] << 8) + boot[2] + 2;	line->elements[insertHere - 1].indent;
3389	} else if (boot[0] == JMP_SHORT_OPCODE) {	line->elements[insertHere - 1].indent = strdup(indent);
3390	offset = boot[1] + 2;	} else {
3391	/*	line->elements[insertHere].indent = strdup(indent);
3392	* 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;
	}
3393
3394	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	line->numElements++;
	return 0;
3395
3396	return 2;	dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3397		line->elements[0].item,
3398		line->elements[insertHere].item,
3399		line->elements[insertHere].indent, insertHere);
3400	}	}
3401
3402	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	static void removeElement(struct singleLine *line, int removeHere)
3403	int fd;	{
3404	char buf[65536];	int i;
	char * end;
	char * chptr;
	char * chptr2;
	int rc;
	/* it's on raid; we need to parse /proc/mdstat and check all of the
	*raw* devices listed in there */
	if (!strncmp(mdDev, "/dev/", 5))
	mdDev += 5;
3405
3406	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	/* sanity check */
3407	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	if (removeHere >= line->numElements)
3408	strerror(errno));	return;
3409	return 2;
3410	}	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3411		removeHere, line->elements[removeHere].item);
3412
3413		free(line->elements[removeHere].item);
3414
3415		if (removeHere > 1) {
3416		/* previous argument gets this argument's post-indentation */
3417		free(line->elements[removeHere - 1].indent);
3418		line->elements[removeHere - 1].indent =
3419		line->elements[removeHere].indent;
3420		} else {
3421		free(line->elements[removeHere].indent);
3422		}
3423
3424	rc = read(fd, buf, sizeof(buf) - 1);	/* now collapse the array, but don't bother to realloc smaller */
3425	if (rc < 0 || rc == (sizeof(buf) - 1)) {	for (i = removeHere; i < line->numElements - 1; i++)
3426	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	line->elements[i] = line->elements[i + 1];
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3427
3428	chptr = buf;	line->numElements--;
3429	while (*chptr) {	}
	end = strchr(chptr, '\n');
	if (!end) break;
	*end = '\0';
3430
3431	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	int argMatch(const char *one, const char *two)
3432	chptr[strlen(mdDev)] == ' ') {	{
3433		char *first, *second;
3434		char *chptr;
3435
3436	/* found the device */	first = strcpy(alloca(strlen(one) + 1), one);
3437	while (*chptr && *chptr != ':') chptr++;	second = strcpy(alloca(strlen(two) + 1), two);
	chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the "active" bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* skip the raid level */
	while (*chptr && !isspace(*chptr)) chptr++;
	while (*chptr && isspace(*chptr)) chptr++;
	/* everything else is partition stuff */
	while (*chptr) {
	chptr2 = chptr;
	while (*chptr2 && *chptr2 != '[') chptr2++;
	if (!*chptr2) break;
	/* yank off the numbers at the end */
	chptr2--;
	while (isdigit(*chptr2) && chptr2 > chptr) chptr2--;
	chptr2++;
	*chptr2 = '\0';
	/* Better, now we need the /dev/ back. We're done with
	* everything before this point, so we can just put
	* the /dev/ part there. There will always be room. */
	memcpy(chptr - 5, "/dev/", 5);
	rc = checkDeviceBootloader(chptr - 5, boot);
	if (rc != 2) {
	return rc;
	}
	chptr = chptr2 + 1;
	/* skip the [11] bit */
	while (*chptr && !isspace(*chptr)) chptr++;
	/* and move to the next one */
	while (*chptr && isspace(*chptr)) chptr++;
	}
3438
3439	/*  we're good to go */	chptr = strchr(first, '=');
3440	return 2;	if (chptr)
3441	}	*chptr = '\0';
3442
3443	chptr = end + 1;	chptr = strchr(second, '=');
3444	}	if (chptr)
3445		*chptr = '\0';
3446
3447	fprintf(stderr,	return strcmp(first, second);
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3448	}	}
3449
3450	int checkForLilo(struct grubConfig * config) {	int updateActualImage(struct grubConfig *cfg, const char *image,
3451	int fd;	const char *prefix, const char *addArgs,
3452	unsigned char boot[512];	const char *removeArgs, int multibootArgs)
3453	struct singleLine * line;	{
3454		struct singleEntry *entry;
3455	for (line = config->theLines; line; line = line->next)	struct singleLine *line, *rootLine;
3456	if (line->type == LT_BOOT) break;	int index = 0;
3457		int i, k;
3458	if (!line) {	const char **newArgs, **oldArgs;
3459	fprintf(stderr,	const char **arg;
3460	_("grubby: no boot line found in lilo configuration\n"));	int useKernelArgs, useRoot;
3461	return 1;	int firstElement;
3462	}	int *usedElements;
3463		int doreplace;
3464
3465	if (line->numElements != 2) return 1;	if (!image)
3466		return 0;
3467
3468	fd = open("/boot/boot.b", O_RDONLY);	if (!addArgs) {
3469	if (fd < 0) {	newArgs = malloc(sizeof(*newArgs));
3470	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	*newArgs = NULL;
3471	"/boot/boot.b", strerror(errno));	} else {
3472	return 1;	if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3473	}	fprintf(stderr,
3474		_("grubby: error separating arguments '%s'\n"),
3475		addArgs);
3476		return 1;
3477		}
3478		}
3479
3480	if (read(fd, boot, 512) != 512) {	if (!removeArgs) {
3481	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	oldArgs = malloc(sizeof(*oldArgs));
3482	"/boot/boot.b", strerror(errno));	*oldArgs = NULL;
3483	return 1;	} else {
3484	}	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3485	close(fd);	fprintf(stderr,
3486		_("grubby: error separating arguments '%s'\n"),
3487		removeArgs);
3488		free(newArgs);
3489		return 1;
3490		}
3491		}
3492
3493	if (!strncmp("/dev/md", line->elements[1].item, 7))	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3494	return checkLiloOnRaid(line->elements[1].item, boot);	&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3495
3496	return checkDeviceBootloader(line->elements[1].item, boot);	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3497	}	&& !multibootArgs);
3498
3499	int checkForGrub2(struct grubConfig * config) {	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
	if (!access("/etc/grub.d/", R_OK))
	return 2;
3500
3501	return 1;	if (multibootArgs && !entry->multiboot)
3502	}	continue;
3503
3504	int checkForGrub(struct grubConfig * config) {	/* Determine where to put the args.  If this config supports
3505	int fd;	* LT_KERNELARGS, use that.  Otherwise use
3506	unsigned char bootSect[512];	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3507	char * boot;	*/
3508	int onSuse = isSuseSystem();	if (useKernelArgs) {
3509		line = getLineByType(LT_KERNELARGS, entry->lines);
3510		if (!line) {
3511		/* no LT_KERNELARGS, need to add it */
3512		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3513		cfg->secondaryIndent, NULL);
3514		}
3515		firstElement = 1;
3516
3517		} else if (multibootArgs) {
3518		line = getLineByType(LT_HYPER, entry->lines);
3519		if (!line) {
3520		/* a multiboot entry without LT_HYPER? */
3521		continue;
3522		}
3523		firstElement = 2;
3524
3525	if (onSuse) {	} else {
3526	if (parseSuseGrubConf(NULL, &boot))	line =
3527	return 0;	getLineByType(LT_KERNEL | LT_MBMODULE |
3528	} else {	LT_KERNEL_EFI | LT_KERNEL_16,
3529	if (parseSysconfigGrub(NULL, &boot))	entry->lines);
3530	return 0;	if (!line) {
3531	}	/* no LT_KERNEL or LT_MBMODULE in this entry? */
3532		continue;
3533		}
3534		firstElement = 2;
3535		}
3536
3537	/* assume grub is not installed -- not an error condition */	/* handle the elilo case which does:
3538	if (!boot)	*   append="hypervisor args -- kernel args"
3539	return 0;	*/
3540		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3541		/* this is a multiboot entry, make sure there's
3542		* -- on the args line
3543		*/
3544		for (i = firstElement; i < line->numElements; i++) {
3545		if (!strcmp(line->elements[i].item, "--"))
3546		break;
3547		}
3548		if (i == line->numElements) {
3549		/* assume all existing args are kernel args,
3550		* prepend -- to make it official
3551		*/
3552		insertElement(line, "--", firstElement,
3553		cfg->cfi);
3554		i = firstElement;
3555		}
3556		if (!multibootArgs) {
3557		/* kernel args start after the -- */
3558		firstElement = i + 1;
3559		}
3560		} else if (cfg->cfi->mbConcatArgs) {
3561		/* this is a non-multiboot entry, remove hyper args */
3562		for (i = firstElement; i < line->numElements; i++) {
3563		if (!strcmp(line->elements[i].item, "--"))
3564		break;
3565		}
3566		if (i < line->numElements) {
3567		/* remove args up to -- */
3568		while (strcmp
3569		(line->elements[firstElement].item,
3570		"--"))
3571		removeElement(line, firstElement);
3572		/* remove -- */
3573		removeElement(line, firstElement);
3574		}
3575		}
3576
3577	fd = open("/boot/grub/stage1", O_RDONLY);	usedElements = calloc(line->numElements, sizeof(*usedElements));
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3578
3579	if (read(fd, bootSect, 512) != 512) {	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	fprintf(stderr, _("grubby: unable to read %s: %s\n"),
	"/boot/grub/stage1", strerror(errno));
	close(fd);
	return 1;
	}
	close(fd);
3580
3581	/* The more elaborate checks do not work on SuSE. The checks done	doreplace = 1;
3582	* seem to be reasonble (at least for now), so just return success	for (i = firstElement; i < line->numElements; i++) {
3583	*/	if (multibootArgs && cfg->cfi->mbConcatArgs &&
3584	if (onSuse)	!strcmp(line->elements[i].item, "--")) {
3585	return 2;	/* reached the end of hyper args, insert here */
3586		doreplace = 0;
3587		break;
3588		}
3589		if (usedElements[i])
3590		continue;
3591		if (!argMatch(line->elements[i].item, *arg)) {
3592		usedElements[i] = 1;
3593		break;
3594		}
3595		}
3596
3597		if (i < line->numElements && doreplace) {
3598		/* direct replacement */
3599		free(line->elements[i].item);
3600		line->elements[i].item = strdup(*arg);
3601
3602		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3603		/* root= replacement */
3604		rootLine = getLineByType(LT_ROOT, entry->lines);
3605		if (rootLine) {
3606		free(rootLine->elements[1].item);
3607		rootLine->elements[1].item =
3608		strdup(*arg + 5);
3609		} else {
3610		rootLine =
3611		addLine(entry, cfg->cfi, LT_ROOT,
3612		cfg->secondaryIndent,
3613		*arg + 5);
3614		}
3615		}
3616
3617		else {
3618		/* insert/append */
3619		insertElement(line, *arg, i, cfg->cfi);
3620		usedElements =
3621		realloc(usedElements,
3622		line->numElements *
3623		sizeof(*usedElements));
3624		memmove(&usedElements[i + 1], &usedElements[i],
3625		line->numElements - i - 1);
3626		usedElements[i] = 1;
3627
3628		/* if we updated a root= here even though
3629		* there is a LT_ROOT available we need to
3630		* remove the LT_ROOT entry (this will happen
3631		* if we switch from a device to a label) */
3632		if (useRoot && !strncmp(*arg, "root=", 5)) {
3633		rootLine =
3634		getLineByType(LT_ROOT,
3635		entry->lines);
3636		if (rootLine)
3637		removeLine(entry, rootLine);
3638		}
3639		}
3640		}
3641
3642		free(usedElements);
3643
3644		for (arg = oldArgs; *arg; arg++) {
3645		for (i = firstElement; i < line->numElements; i++) {
3646		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3647		!strcmp(line->elements[i].item, "--"))
3648		/* reached the end of hyper args, stop here */
3649		break;
3650		if (!argMatch(line->elements[i].item, *arg)) {
3651		removeElement(line, i);
3652		break;
3653		}
3654		}
3655		/* handle removing LT_ROOT line too */
3656		if (useRoot && !strncmp(*arg, "root=", 5)) {
3657		rootLine = getLineByType(LT_ROOT, entry->lines);
3658		if (rootLine)
3659		removeLine(entry, rootLine);
3660		}
3661		}
3662
3663		if (line->numElements == 1) {
3664		/* don't need the line at all (note it has to be a
3665		LT_KERNELARGS for this to happen */
3666		removeLine(entry, line);
3667		}
3668		}
3669
3670		free(newArgs);
3671		free(oldArgs);
3672
3673	return checkDeviceBootloader(boot, bootSect);	return 0;
3674	}	}
3675
3676	int checkForExtLinux(struct grubConfig * config) {	int updateImage(struct grubConfig *cfg, const char *image,
3677	int fd;	const char *prefix, const char *addArgs,
3678	unsigned char bootSect[512];	const char *removeArgs,
3679	char * boot;	const char *addMBArgs, const char *removeMBArgs)
3680	char executable[] = "/boot/extlinux/extlinux";	{
3681		int rc = 0;
3682
3683	printf("entered: checkForExtLinux()\n");	if (!image)
3684		return rc;
3685
3686		/* update the main args first... */
3687		if (addArgs || removeArgs)
3688		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3689		0);
3690		if (rc)
3691		return rc;
3692
3693		/* and now any multiboot args */
3694		if (addMBArgs || removeMBArgs)
3695		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3696		removeMBArgs, 1);
3697		return rc;
3698		}
3699
3700		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3701		const char *image, const char *prefix, const char *initrd,
3702		const char *title)
3703		{
3704		struct singleEntry *entry;
3705		struct singleLine *line, *kernelLine, *endLine = NULL;
3706		int index = 0;
3707
3708		if (!image)
3709		return 0;
3710
3711		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3712		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3713		if (!kernelLine)
3714		continue;
3715
3716		/* if title is supplied, the entry's title must match it. */
3717		if (title) {
3718		char *linetitle;
3719
3720		line =
3721		getLineByType(LT_TITLE | LT_MENUENTRY,
3722		entry->lines);
3723		if (!line)
3724		continue;
3725
3726		linetitle = extractTitle(cfg, line);
3727		if (!linetitle)
3728		continue;
3729		if (strcmp(title, linetitle)) {
3730		free(linetitle);
3731		continue;
3732		}
3733		free(linetitle);
3734		}
3735
3736		if (prefix) {
3737		int prefixLen = strlen(prefix);
3738		if (!strncmp(initrd, prefix, prefixLen))
3739		initrd += prefixLen;
3740		}
3741		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3742		if (endLine)
3743		removeLine(entry, endLine);
3744		line =
3745		addLine(entry, cfg->cfi,
3746		preferredLineType(LT_MBMODULE, cfg->cfi),
3747		kernelLine->indent, initrd);
3748		if (!line)
3749		return 1;
3750		if (endLine) {
3751		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3752		if (!line)
3753		return 1;
3754		}
3755
3756		break;
3757		}
3758
	if (parseSysconfigGrub(NULL, &boot))
3759	return 0;	return 0;
3760		}
3761
3762		int updateInitrd(struct grubConfig *cfg, const char *image,
3763		const char *prefix, const char *initrd, const char *title)
3764		{
3765		struct singleEntry *entry;
3766		struct singleLine *line, *kernelLine, *endLine = NULL;
3767		int index = 0;
3768
3769		if (!image)
3770		return 0;
3771
3772		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3773		kernelLine =
3774		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3775		entry->lines);
3776		if (!kernelLine)
3777		continue;
3778
3779		/* if title is supplied, the entry's title must match it. */
3780		if (title) {
3781		char *linetitle;
3782
3783		line =
3784		getLineByType(LT_TITLE | LT_MENUENTRY,
3785		entry->lines);
3786		if (!line)
3787		continue;
3788
3789		linetitle = extractTitle(cfg, line);
3790		if (!linetitle)
3791		continue;
3792		if (strcmp(title, linetitle)) {
3793		free(linetitle);
3794		continue;
3795		}
3796		free(linetitle);
3797		}
3798
3799		line =
3800		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3801		entry->lines);
3802		if (line)
3803		removeLine(entry, line);
3804		if (prefix) {
3805		int prefixLen = strlen(prefix);
3806		if (!strncmp(initrd, prefix, prefixLen))
3807		initrd += prefixLen;
3808		}
3809		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3810		if (endLine)
3811		removeLine(entry, endLine);
3812		enum lineType_e lt;
3813		switch (kernelLine->type) {
3814		case LT_KERNEL:
3815		lt = LT_INITRD;
3816		break;
3817		case LT_KERNEL_EFI:
3818		lt = LT_INITRD_EFI;
3819		break;
3820		case LT_KERNEL_16:
3821		lt = LT_INITRD_16;
3822		break;
3823		default:
3824		lt = preferredLineType(LT_INITRD, cfg->cfi);
3825		}
3826		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3827		if (!line)
3828		return 1;
3829		if (endLine) {
3830		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3831		if (!line)
3832		return 1;
3833		}
3834
3835		break;
3836		}
3837
	/* assume grub is not installed -- not an error condition */
	if (!boot)
3838	return 0;	return 0;
3839		}
3840
3841		int checkDeviceBootloader(const char *device, const unsigned char *boot)
3842		{
3843		int fd;
3844		unsigned char bootSect[512];
3845		int offset;
3846
3847		fd = open(device, O_RDONLY);
3848		if (fd < 0) {
3849		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3850		device, strerror(errno));
3851		return 1;
3852		}
3853
3854		if (read(fd, bootSect, 512) != 512) {
3855		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3856		device, strerror(errno));
3857		return 1;
3858		}
3859		close(fd);
3860
3861		/* first three bytes should match, a jmp short should be in there */
3862		if (memcmp(boot, bootSect, 3))
3863		return 0;
3864
3865		if (boot[1] == JMP_SHORT_OPCODE) {
3866		offset = boot[2] + 2;
3867		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3868		offset = (boot[3] << 8) + boot[2] + 2;
3869		} else if (boot[0] == JMP_SHORT_OPCODE) {
3870		offset = boot[1] + 2;
3871		/*
3872		* it looks like grub, when copying stage1 into the mbr,
3873		* patches stage1 right after the JMP location, replacing
3874		* other instructions such as JMPs for NOOPs. So, relax the
3875		* check a little bit by skipping those different bytes.
3876		*/
3877		if ((bootSect[offset + 1] == NOOP_OPCODE)
3878		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3879		offset = offset + 3;
3880		}
3881		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3882		offset = (boot[2] << 8) + boot[1] + 2;
3883		} else {
3884		return 0;
3885		}
3886
3887	fd = open(executable, O_RDONLY);	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3888	if (fd < 0)	return 0;
3889	/* this doesn't exist if grub hasn't been installed */
3890		return 2;
3891		}
3892
3893		int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3894		{
3895		int fd;
3896		char buf[65536];
3897		char *end;
3898		char *chptr;
3899		char *chptr2;
3900		int rc;
3901
3902		/* it's on raid; we need to parse /proc/mdstat and check all of the
3903		*raw* devices listed in there */
3904
3905		if (!strncmp(mdDev, "/dev/", 5))
3906		mdDev += 5;
3907
3908		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3909		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3910		strerror(errno));
3911		return 2;
3912		}
3913
3914		rc = read(fd, buf, sizeof(buf) - 1);
3915		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3916		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3917		strerror(errno));
3918		close(fd);
3919		return 2;
3920		}
3921		close(fd);
3922		buf[rc] = '\0';
3923
3924		chptr = buf;
3925		while (*chptr) {
3926		end = strchr(chptr, '\n');
3927		if (!end)
3928		break;
3929		*end = '\0';
3930
3931		if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3932		chptr[strlen(mdDev)] == ' ') {
3933
3934		/* found the device */
3935		while (*chptr && *chptr != ':')
3936		chptr++;
3937		chptr++;
3938		while (*chptr && isspace(*chptr))
3939		chptr++;
3940
3941		/* skip the "active" bit */
3942		while (*chptr && !isspace(*chptr))
3943		chptr++;
3944		while (*chptr && isspace(*chptr))
3945		chptr++;
3946
3947		/* skip the raid level */
3948		while (*chptr && !isspace(*chptr))
3949		chptr++;
3950		while (*chptr && isspace(*chptr))
3951		chptr++;
3952
3953		/* everything else is partition stuff */
3954		while (*chptr) {
3955		chptr2 = chptr;
3956		while (*chptr2 && *chptr2 != '[')
3957		chptr2++;
3958		if (!*chptr2)
3959		break;
3960
3961		/* yank off the numbers at the end */
3962		chptr2--;
3963		while (isdigit(*chptr2) && chptr2 > chptr)
3964		chptr2--;
3965		chptr2++;
3966		*chptr2 = '\0';
3967
3968		/* Better, now we need the /dev/ back. We're
3969		* done with everything before this point, so
3970		* we can just put the /dev/ part there.
3971		* There will always be room. */
3972		memcpy(chptr - 5, "/dev/", 5);
3973		rc = checkDeviceBootloader(chptr - 5, boot);
3974		if (rc != 2) {
3975		return rc;
3976		}
3977
3978		chptr = chptr2 + 1;
3979		/* skip the [11] bit */
3980		while (*chptr && !isspace(*chptr))
3981		chptr++;
3982		/* and move to the next one */
3983		while (*chptr && isspace(*chptr))
3984		chptr++;
3985		}
3986
3987		/*  we're good to go */
3988		return 2;
3989		}
3990
3991		chptr = end + 1;
3992		}
3993
3994		fprintf(stderr,
3995		_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
3996		mdDev);
3997	return 0;	return 0;
3998		}
3999
4000	if (read(fd, bootSect, 512) != 512) {	int checkForLilo(struct grubConfig *config)
4001	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	{
4002	executable, strerror(errno));	int fd;
4003	return 1;	unsigned char boot[512];
4004	}	struct singleLine *line;
4005	close(fd);
4006		for (line = config->theLines; line; line = line->next)
4007		if (line->type == LT_BOOT)
4008		break;
4009
4010		if (!line) {
4011		fprintf(stderr,
4012		_
4013		("grubby: no boot line found in lilo configuration\n"));
4014		return 1;
4015		}
4016
4017		if (line->numElements != 2)
4018		return 1;
4019
4020		fd = open("/boot/boot.b", O_RDONLY);
4021		if (fd < 0) {
4022		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4023		"/boot/boot.b", strerror(errno));
4024		return 1;
4025		}
4026
4027	return checkDeviceBootloader(boot, bootSect);	if (read(fd, boot, 512) != 512) {
4028		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4029		"/boot/boot.b", strerror(errno));
4030		return 1;
4031		}
4032		close(fd);
4033
4034		if (!strncmp("/dev/md", line->elements[1].item, 7))
4035		return checkLiloOnRaid(line->elements[1].item, boot);
4036
4037		return checkDeviceBootloader(line->elements[1].item, boot);
4038	}	}
4039
4040	int checkForYaboot(struct grubConfig * config) {	int checkForGrub2(struct grubConfig *config)
4041	/*	{
4042	* This is a simplistic check that we consider good enough for own puporses	if (!access("/etc/grub.d/", R_OK))
4043	*	return 2;
	* If we were to properly check if yaboot is *installed* we'd need to:
	* 1) get the system boot device (LT_BOOT)
	* 2) considering it's a raw filesystem, check if the yaboot binary matches
	*    the content on the boot device
	* 3) if not, copy the binary to a temporary file and run "addnote" on it
	* 4) check again if binary and boot device contents match
	*/
	if (!access("/etc/yaboot.conf", R_OK))
	return 2;
4044
4045	return 1;	return 1;
4046	}	}
4047
4048	int checkForElilo(struct grubConfig * config) {	int checkForGrub(struct grubConfig *config)
4049	if (!access("/etc/elilo.conf", R_OK))	{
4050	return 2;	int fd;
4051		unsigned char bootSect[512];
4052		char *boot;
4053		int onSuse = isSuseSystem();
4054
4055		if (onSuse) {
4056		if (parseSuseGrubConf(NULL, &boot))
4057		return 0;
4058		} else {
4059		if (parseSysconfigGrub(NULL, &boot))
4060		return 0;
4061		}
4062
4063		/* assume grub is not installed -- not an error condition */
4064		if (!boot)
4065		return 0;
4066
4067		fd = open("/boot/grub/stage1", O_RDONLY);
4068		if (fd < 0)
4069		/* this doesn't exist if grub hasn't been installed */
4070		return 0;
4071
4072		if (read(fd, bootSect, 512) != 512) {
4073		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4074		"/boot/grub/stage1", strerror(errno));
4075		close(fd);
4076		return 1;
4077		}
4078		close(fd);
4079
4080	return 1;	/* The more elaborate checks do not work on SuSE. The checks done
4081		* seem to be reasonble (at least for now), so just return success
4082		*/
4083		if (onSuse)
4084		return 2;
4085
4086		return checkDeviceBootloader(boot, bootSect);
4087	}	}
4088
4089	static char * getRootSpecifier(char * str) {	int checkForExtLinux(struct grubConfig *config)
4090	char * idx, * rootspec = NULL;	{
4091		int fd;
4092		unsigned char bootSect[512];
4093		char *boot;
4094		char executable[] = "/boot/extlinux/extlinux";
4095
4096		printf("entered: checkForExtLinux()\n");
4097
4098	if (*str == '(') {	if (parseSysconfigGrub(NULL, &boot))
4099	idx = rootspec = strdup(str);	return 0;
4100	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
4101	*(++idx) = '\0';	/* assume grub is not installed -- not an error condition */
4102	}	if (!boot)
4103	return rootspec;	return 0;
4104
4105		fd = open(executable, O_RDONLY);
4106		if (fd < 0)
4107		/* this doesn't exist if grub hasn't been installed */
4108		return 0;
4109
4110		if (read(fd, bootSect, 512) != 512) {
4111		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4112		executable, strerror(errno));
4113		return 1;
4114		}
4115		close(fd);
4116
4117		return checkDeviceBootloader(boot, bootSect);
4118	}	}
4119
4120	static char * getInitrdVal(struct grubConfig * config,	int checkForYaboot(struct grubConfig *config)
4121	const char * prefix, struct singleLine *tmplLine,	{
4122	const char * newKernelInitrd,	/*
4123	const char ** extraInitrds, int extraInitrdCount)	* This is a simplistic check that we consider good enough for own puporses
4124	{	*
4125	char *initrdVal, *end;	* If we were to properly check if yaboot is *installed* we'd need to:
4126	int i;	* 1) get the system boot device (LT_BOOT)
4127	size_t totalSize;	* 2) considering it's a raw filesystem, check if the yaboot binary matches
4128	size_t prefixLen;	*    the content on the boot device
4129	char separatorChar;	* 3) if not, copy the binary to a temporary file and run "addnote" on it
4130		* 4) check again if binary and boot device contents match
4131	prefixLen = strlen(prefix);	*/
4132	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;	if (!access("/etc/yaboot.conf", R_OK))
4133		return 2;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
4134
4135	initrdVal = end = malloc(totalSize);	return 1;
4136		}
4137
4138	end = stpcpy (end, newKernelInitrd + prefixLen);	int checkForElilo(struct grubConfig *config)
4139		{
4140		if (!access("/etc/elilo.conf", R_OK))
4141		return 2;
4142
4143	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	return 1;
4144	for (i = 0; i < extraInitrdCount; i++) {	}
	const char *extraInitrd;
	int j;
4145
4146	extraInitrd = extraInitrds[i] + prefixLen;	static char *getRootSpecifier(char *str)
4147	/* Don't add entries that are already there */	{
4148	if (tmplLine != NULL) {	char *idx, *rootspec = NULL;
	for (j = 2; j < tmplLine->numElements; j++)
	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)
	break;
4149
4150	if (j != tmplLine->numElements)	if (*str == '(') {
4151	continue;	idx = rootspec = strdup(str);
4152		while (*idx && (*idx != ')') && (!isspace(*idx)))
4153		idx++;
4154		*(++idx) = '\0';
4155	}	}
4156		return rootspec;
4157		}
4158
4159	*end++ = separatorChar;	static char *getInitrdVal(struct grubConfig *config,
4160	end = stpcpy(end, extraInitrd);	const char *prefix, struct singleLine *tmplLine,
4161	}	const char *newKernelInitrd,
4162		const char **extraInitrds, int extraInitrdCount)
4163		{
4164		char *initrdVal, *end;
4165		int i;
4166		size_t totalSize;
4167		size_t prefixLen;
4168		char separatorChar;
4169
4170		prefixLen = strlen(prefix);
4171		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4172
4173		for (i = 0; i < extraInitrdCount; i++) {
4174		totalSize += sizeof(separatorChar);
4175		totalSize += strlen(extraInitrds[i]) - prefixLen;
4176		}
4177
4178		initrdVal = end = malloc(totalSize);
4179
4180		end = stpcpy(end, newKernelInitrd + prefixLen);
4181
4182		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4183		for (i = 0; i < extraInitrdCount; i++) {
4184		const char *extraInitrd;
4185		int j;
4186
4187		extraInitrd = extraInitrds[i] + prefixLen;
4188		/* Don't add entries that are already there */
4189		if (tmplLine != NULL) {
4190		for (j = 2; j < tmplLine->numElements; j++)
4191		if (strcmp
4192		(extraInitrd,
4193		tmplLine->elements[j].item) == 0)
4194		break;
4195
4196		if (j != tmplLine->numElements)
4197		continue;
4198		}
4199
4200	return initrdVal;	*end++ = separatorChar;
4201		end = stpcpy(end, extraInitrd);
4202		}
4203
4204		return initrdVal;
4205	}	}
4206
4207	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4208	const char * prefix,	const char *prefix,
4209	const char * newKernelPath, const char * newKernelTitle,	const char *newKernelPath, const char *newKernelTitle,
4210	const char * newKernelArgs, const char * newKernelInitrd,	const char *newKernelArgs, const char *newKernelInitrd,
4211	const char ** extraInitrds, int extraInitrdCount,	const char **extraInitrds, int extraInitrdCount,
4212	const char * newMBKernel, const char * newMBKernelArgs) {	const char *newMBKernel, const char *newMBKernelArgs,
4213	struct singleEntry * new;	const char *newDevTreePath)
4214	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;	{
4215	int needs;	struct singleEntry *new;
4216	char * chptr;	struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4217		int needs;
4218	if (!newKernelPath) return 0;	char *chptr;
4219
4220	/* if the newKernelTitle is too long silently munge it into something	if (!newKernelPath)
4221	* we can live with. truncating is first check, then we'll just mess with	return 0;
4222	* it until it looks better */
4223	if (config->cfi->maxTitleLength &&	/* if the newKernelTitle is too long silently munge it into something
4224		* we can live with. truncating is first check, then we'll just mess with
4225		* it until it looks better */
4226		if (config->cfi->maxTitleLength &&
4227	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4228	char * buf = alloca(config->cfi->maxTitleLength + 7);	char *buf = alloca(config->cfi->maxTitleLength + 7);
4229	char * numBuf = alloca(config->cfi->maxTitleLength + 1);	char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4230	int i = 1;	int i = 1;
4231
4232		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4233		newKernelTitle);
4234		while (findEntryByPath(config, buf, NULL, NULL)) {
4235		sprintf(numBuf, "%d", i++);
4236		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4237		}
4238
4239	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);
4240	}	}
4241
4242	newKernelTitle = buf + 6;	new = malloc(sizeof(*new));
4243	}	new->skip = 0;
4244		new->multiboot = 0;
4245		new->next = config->entries;
4246		new->lines = NULL;
4247		config->entries = new;
4248
4249		/* copy/update from the template */
4250		needs = NEED_KERNEL | NEED_TITLE;
4251		if (newKernelInitrd)
4252		needs |= NEED_INITRD;
4253		if (newMBKernel) {
4254		needs |= NEED_MB;
4255		new->multiboot = 1;
4256		}
4257		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4258		needs |= NEED_DEVTREE;
4259
4260		if (template) {
4261		for (masterLine = template->lines;
4262		masterLine && (tmplLine = lineDup(masterLine));
4263		lineFree(tmplLine), masterLine = masterLine->next) {
4264		dbgPrintf("addNewKernel processing %d\n",
4265		tmplLine->type);
4266
4267		/* skip comments */
4268		chptr = tmplLine->indent;
4269		while (*chptr && isspace(*chptr))
4270		chptr++;
4271		if (*chptr == '#')
4272		continue;
4273
4274		if (iskernel(tmplLine->type)
4275		&& tmplLine->numElements >= 2) {
4276		if (!template->multiboot && (needs & NEED_MB)) {
4277		/* it's not a multiboot template and
4278		* this is the kernel line.  Try to
4279		* be intelligent about inserting the
4280		* hypervisor at the same time.
4281		*/
4282		if (config->cfi->mbHyperFirst) {
4283		/* insert the hypervisor first */
4284		newLine =
4285		addLine(new, config->cfi,
4286		LT_HYPER,
4287		tmplLine->indent,
4288		newMBKernel +
4289		strlen(prefix));
4290		/* set up for adding the
4291		* kernel line */
4292		free(tmplLine->indent);
4293		tmplLine->indent =
4294		strdup(config->
4295		secondaryIndent);
4296		needs &= ~NEED_MB;
4297		}
4298		if (needs & NEED_KERNEL) {
4299		/* use addLineTmpl to
4300		* preserve line elements,
4301		* otherwise we could just
4302		* call addLine.
4303		* Unfortunately this means
4304		* making some changes to the
4305		* template such as the
4306		* indent change above and
4307		* the type change below.
4308		*/
4309		struct keywordTypes *mbm_kw =
4310		getKeywordByType
4311		(LT_MBMODULE, config->cfi);
4312		if (mbm_kw) {
4313		tmplLine->type =
4314		LT_MBMODULE;
4315		free(tmplLine->
4316		elements[0].item);
4317		tmplLine->elements[0].
4318		item =
4319		strdup(mbm_kw->key);
4320		}
4321		newLine =
4322		addLineTmpl(new, tmplLine,
4323		newLine,
4324		newKernelPath +
4325		strlen(prefix),
4326		config->cfi);
4327		needs &= ~NEED_KERNEL;
4328		}
4329		if (needs & NEED_MB) { /* !mbHyperFirst */
4330		newLine =
4331		addLine(new, config->cfi,
4332		LT_HYPER,
4333		config->
4334		secondaryIndent,
4335		newMBKernel +
4336		strlen(prefix));
4337		needs &= ~NEED_MB;
4338		}
4339		} else if (needs & NEED_KERNEL) {
4340		newLine =
4341		addLineTmpl(new, tmplLine, newLine,
4342		newKernelPath +
4343		strlen(prefix),
4344		config->cfi);
4345		needs &= ~NEED_KERNEL;
4346		}
4347
4348	new = malloc(sizeof(*new));	} else if (tmplLine->type == LT_HYPER &&
4349	new->skip = 0;	tmplLine->numElements >= 2) {
4350	new->multiboot = 0;	if (needs & NEED_MB) {
4351	new->next = config->entries;	newLine =
4352	new->lines = NULL;	addLineTmpl(new, tmplLine, newLine,
4353	config->entries = new;	newMBKernel +
4354		strlen(prefix),
4355	/* copy/update from the template */	config->cfi);
4356	needs = NEED_KERNEL | NEED_TITLE;	needs &= ~NEED_MB;
4357	if (newKernelInitrd)	}
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
4358
4359	if (template) {	} else if (tmplLine->type == LT_MBMODULE &&
4360	for (masterLine = template->lines;	tmplLine->numElements >= 2) {
4361	masterLine && (tmplLine = lineDup(masterLine));	if (new->multiboot) {
4362	lineFree(tmplLine), masterLine = masterLine->next)	if (needs & NEED_KERNEL) {
4363	{	newLine =
4364	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);	addLineTmpl(new, tmplLine,
4365		newLine,
4366	/* skip comments */	newKernelPath +
4367	chptr = tmplLine->indent;	strlen(prefix),
4368	while (*chptr && isspace(*chptr)) chptr++;	config->cfi);
4369	if (*chptr == '#') continue;	needs &= ~NEED_KERNEL;
4370		} else if (config->cfi->mbInitRdIsModule
4371	if (tmplLine->type == LT_KERNEL &&	&& (needs & NEED_INITRD)) {
4372	tmplLine->numElements >= 2) {	char *initrdVal;
4373	if (!template->multiboot && (needs & NEED_MB)) {	initrdVal =
4374	/* it's not a multiboot template and this is the kernel	getInitrdVal(config, prefix,
4375	* line.  Try to be intelligent about inserting the	tmplLine,
4376	* hypervisor at the same time.	newKernelInitrd,
4377	*/	extraInitrds,
4378	if (config->cfi->mbHyperFirst) {	extraInitrdCount);
4379	/* insert the hypervisor first */	newLine =
4380	newLine = addLine(new, config->cfi, LT_HYPER,	addLineTmpl(new, tmplLine,
4381	tmplLine->indent,	newLine,
4382	newMBKernel + strlen(prefix));	initrdVal,
4383	/* set up for adding the kernel line */	config->cfi);
4384	free(tmplLine->indent);	free(initrdVal);
4385	tmplLine->indent = strdup(config->secondaryIndent);	needs &= ~NEED_INITRD;
4386	needs &= ~NEED_MB;	}
4387	}	} else if (needs & NEED_KERNEL) {
4388	if (needs & NEED_KERNEL) {	/* template is multi but new is not,
4389	/* use addLineTmpl to preserve line elements,	* insert the kernel in the first
4390	* otherwise we could just call addLine.  Unfortunately	* module slot
4391	* this means making some changes to the template	*/
4392	* such as the indent change above and the type	tmplLine->type =
4393	* change below.	preferredLineType(LT_KERNEL,
4394	*/	config->cfi);
4395	struct keywordTypes * mbm_kw =	free(tmplLine->elements[0].item);
4396	getKeywordByType(LT_MBMODULE, config->cfi);	tmplLine->elements[0].item =
4397	if (mbm_kw) {	strdup(getKeywordByType
4398	tmplLine->type = LT_MBMODULE;	(tmplLine->type,
4399	free(tmplLine->elements[0].item);	config->cfi)->key);
4400	tmplLine->elements[0].item = strdup(mbm_kw->key);	newLine =
4401	}	addLineTmpl(new, tmplLine, newLine,
4402	newLine = addLineTmpl(new, tmplLine, newLine,	newKernelPath +
4403	newKernelPath + strlen(prefix), config->cfi);	strlen(prefix),
4404	needs &= ~NEED_KERNEL;	config->cfi);
4405	}	needs &= ~NEED_KERNEL;
4406	if (needs & NEED_MB) { /* !mbHyperFirst */	} else if (needs & NEED_INITRD) {
4407	newLine = addLine(new, config->cfi, LT_HYPER,	char *initrdVal;
4408	config->secondaryIndent,	/* template is multi but new is not,
4409	newMBKernel + strlen(prefix));	* insert the initrd in the second
4410	needs &= ~NEED_MB;	* module slot
4411	}	*/
4412	} else if (needs & NEED_KERNEL) {	tmplLine->type =
4413	newLine = addLineTmpl(new, tmplLine, newLine,	preferredLineType(LT_INITRD,
4414	newKernelPath + strlen(prefix), config->cfi);	config->cfi);
4415	needs &= ~NEED_KERNEL;	free(tmplLine->elements[0].item);
4416	}	tmplLine->elements[0].item =
4417		strdup(getKeywordByType
4418	} else if (tmplLine->type == LT_HYPER &&	(tmplLine->type,
4419	tmplLine->numElements >= 2) {	config->cfi)->key);
4420	if (needs & NEED_MB) {	initrdVal =
4421	newLine = addLineTmpl(new, tmplLine, newLine,	getInitrdVal(config, prefix,
4422	newMBKernel + strlen(prefix), config->cfi);	tmplLine,
4423	needs &= ~NEED_MB;	newKernelInitrd,
4424	}	extraInitrds,
4425		extraInitrdCount);
4426	} else if (tmplLine->type == LT_MBMODULE &&	newLine =
4427	tmplLine->numElements >= 2) {	addLineTmpl(new, tmplLine, newLine,
4428	if (new->multiboot) {	initrdVal, config->cfi);
4429	if (needs & NEED_KERNEL) {	free(initrdVal);
4430	newLine = addLineTmpl(new, tmplLine, newLine,	needs &= ~NEED_INITRD;
4431	newKernelPath +	}
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_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);
	}
	}
4432
4433	} else {	} else if (isinitrd(tmplLine->type)
4434	/* don't have a template, so start the entry with the	&& tmplLine->numElements >= 2) {
4435	* appropriate starting line	if (needs & NEED_INITRD && new->multiboot
4436	*/	&& !template->multiboot
4437	switch (config->cfi->entryStart) {	&& config->cfi->mbInitRdIsModule) {
4438	case LT_KERNEL:	/* make sure we don't insert the
4439	if (new->multiboot && config->cfi->mbHyperFirst) {	* module initrd before the module
4440	/* fall through to LT_HYPER */	* kernel... if we don't do it here,
4441	} else {	* it will be inserted following the
4442	newLine = addLine(new, config->cfi, LT_KERNEL,	* template.
4443	config->primaryIndent,	*/
4444	newKernelPath + strlen(prefix));	if (!needs & NEED_KERNEL) {
4445	needs &= ~NEED_KERNEL;	char *initrdVal;
4446	break;
4447		initrdVal =
4448		getInitrdVal(config, prefix,
4449		tmplLine,
4450		newKernelInitrd,
4451		extraInitrds,
4452		extraInitrdCount);
4453		newLine =
4454		addLine(new, config->cfi,
4455		LT_MBMODULE,
4456		config->
4457		secondaryIndent,
4458		initrdVal);
4459		free(initrdVal);
4460		needs &= ~NEED_INITRD;
4461		}
4462		} else if (needs & NEED_INITRD) {
4463		char *initrdVal;
4464		initrdVal =
4465		getInitrdVal(config, prefix,
4466		tmplLine,
4467		newKernelInitrd,
4468		extraInitrds,
4469		extraInitrdCount);
4470		newLine =
4471		addLineTmpl(new, tmplLine, newLine,
4472		initrdVal, config->cfi);
4473		free(initrdVal);
4474		needs &= ~NEED_INITRD;
4475		}
4476
4477		} else if (tmplLine->type == LT_MENUENTRY &&
4478		(needs & NEED_TITLE)) {
4479		requote(tmplLine, config->cfi);
4480		char *nkt = malloc(strlen(newKernelTitle) + 3);
4481		strcpy(nkt, "'");
4482		strcat(nkt, newKernelTitle);
4483		strcat(nkt, "'");
4484		newLine =
4485		addLineTmpl(new, tmplLine, newLine, nkt,
4486		config->cfi);
4487		free(nkt);
4488		needs &= ~NEED_TITLE;
4489		} else if (tmplLine->type == LT_TITLE &&
4490		(needs & NEED_TITLE)) {
4491		if (tmplLine->numElements >= 2) {
4492		newLine =
4493		addLineTmpl(new, tmplLine, newLine,
4494		newKernelTitle,
4495		config->cfi);
4496		needs &= ~NEED_TITLE;
4497		} else if (tmplLine->numElements == 1 &&
4498		config->cfi->titleBracketed) {
4499		/* addLineTmpl doesn't handle
4500		* titleBracketed */
4501		newLine =
4502		addLine(new, config->cfi, LT_TITLE,
4503		tmplLine->indent,
4504		newKernelTitle);
4505		needs &= ~NEED_TITLE;
4506		}
4507		} else if (tmplLine->type == LT_ECHO) {
4508		requote(tmplLine, config->cfi);
4509		static const char *prefix = "'Loading ";
4510		if (tmplLine->numElements > 1 &&
4511		strstr(tmplLine->elements[1].item, prefix)
4512		&& masterLine->next
4513		&& iskernel(masterLine->next->type)) {
4514		char *newTitle =
4515		malloc(strlen(prefix) +
4516		strlen(newKernelTitle) + 2);
4517
4518		strcpy(newTitle, prefix);
4519		strcat(newTitle, newKernelTitle);
4520		strcat(newTitle, "'");
4521		newLine =
4522		addLine(new, config->cfi, LT_ECHO,
4523		tmplLine->indent, newTitle);
4524		free(newTitle);
4525		} else {
4526		/* pass through other lines from the
4527		* template */
4528		newLine =
4529		addLineTmpl(new, tmplLine, newLine,
4530		NULL, config->cfi);
4531		}
4532		} else if (tmplLine->type == LT_DEVTREE &&
4533		tmplLine->numElements == 2
4534		&& newDevTreePath) {
4535		newLine =
4536		addLineTmpl(new, tmplLine, newLine,
4537		newDevTreePath + strlen(prefix),
4538		config->cfi);
4539		needs &= ~NEED_DEVTREE;
4540		} else if (tmplLine->type == LT_ENTRY_END
4541		&& needs & NEED_DEVTREE) {
4542		const char *ndtp = newDevTreePath;
4543		if (!strncmp
4544		(newDevTreePath, prefix, strlen(prefix)))
4545		ndtp += strlen(prefix);
4546		newLine = addLine(new, config->cfi, LT_DEVTREE,
4547		config->secondaryIndent,
4548		ndtp);
4549		needs &= ~NEED_DEVTREE;
4550		newLine =
4551		addLineTmpl(new, tmplLine, newLine, NULL,
4552		config->cfi);
4553		} else {
4554		/* pass through other lines from the template */
4555		newLine =
4556		addLineTmpl(new, tmplLine, newLine, NULL,
4557		config->cfi);
4558		}
4559	}	}
4560
4561	case LT_HYPER:	} else {
4562	newLine = addLine(new, config->cfi, LT_HYPER,	/* don't have a template, so start the entry with the
4563	config->primaryIndent,	* appropriate starting line
4564	newMBKernel + strlen(prefix));	*/
4565	needs &= ~NEED_MB;	switch (config->cfi->entryStart) {
4566	break;	case LT_KERNEL:
4567		case LT_KERNEL_EFI:
4568		case LT_KERNEL_16:
4569		if (new->multiboot && config->cfi->mbHyperFirst) {
4570		/* fall through to LT_HYPER */
4571		} else {
4572		newLine = addLine(new, config->cfi,
4573		preferredLineType(LT_KERNEL,
4574		config->
4575		cfi),
4576		config->primaryIndent,
4577		newKernelPath +
4578		strlen(prefix));
4579		needs &= ~NEED_KERNEL;
4580		break;
4581		}
4582
4583	case LT_MENUENTRY: {	case LT_HYPER:
4584	char *nkt = malloc(strlen(newKernelTitle)+3);	newLine = addLine(new, config->cfi, LT_HYPER,
4585	strcpy(nkt, "'");	config->primaryIndent,
4586	strcat(nkt, newKernelTitle);	newMBKernel + strlen(prefix));
4587	strcat(nkt, "'");	needs &= ~NEED_MB;
4588	newLine = addLine(new, config->cfi, LT_MENUENTRY,	break;
4589	config->primaryIndent, nkt);
4590	free(nkt);	case LT_MENUENTRY:{
4591	needs &= ~NEED_TITLE;	char *nkt = malloc(strlen(newKernelTitle) + 3);
4592	needs |= NEED_END;	strcpy(nkt, "'");
4593	break;	strcat(nkt, newKernelTitle);
4594	}	strcat(nkt, "'");
4595	case LT_TITLE:	newLine =
4596	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	addLine(new, config->cfi, LT_MENUENTRY,
4597	char * templabel;	config->primaryIndent, nkt);
4598	int x = 0, y = 0;	free(nkt);
4599		needs &= ~NEED_TITLE;
4600	templabel = strdup(newKernelTitle);	needs |= NEED_END;
4601	while( templabel[x]){	break;
4602	if( templabel[x] == ' ' ){	}
4603	y = x;	case LT_TITLE:
4604	while( templabel[y] ){	if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4605	templabel[y] = templabel[y+1];	char *templabel;
4606	y++;	int x = 0, y = 0;
4607
4608		templabel = strdup(newKernelTitle);
4609		while (templabel[x]) {
4610		if (templabel[x] == ' ') {
4611		y = x;
4612		while (templabel[y]) {
4613		templabel[y] =
4614		templabel[y + 1];
4615		y++;
4616		}
4617	}	}
4618		x++;
4619	}	}
4620	x++;	newLine = addLine(new, config->cfi, LT_TITLE,
4621		config->primaryIndent,
4622		templabel);
4623		free(templabel);
4624		} else {
4625		newLine = addLine(new, config->cfi, LT_TITLE,
4626		config->primaryIndent,
4627		newKernelTitle);
4628	}	}
4629	newLine = addLine(new, config->cfi, LT_TITLE,	needs &= ~NEED_TITLE;
4630	config->primaryIndent, templabel);	break;
4631	free(templabel);
4632	}else{	default:
4633	newLine = addLine(new, config->cfi, LT_TITLE,	abort();
	config->primaryIndent, newKernelTitle);
4634	}	}
4635	needs &= ~NEED_TITLE;	}
	break;
4636
4637	default:	struct singleLine *endLine = NULL;
4638	abort();	endLine = getLineByType(LT_ENTRY_END, new->lines);
4639		if (endLine) {
4640		removeLine(new, endLine);
4641		needs |= NEED_END;
4642	}	}
	}
4643
4644	/* add the remainder of the lines, i.e. those that either	/* add the remainder of the lines, i.e. those that either
4645	* 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,
4646	* all the lines following the entryStart.	* all the lines following the entryStart.
4647	*/	*/
4648	if (needs & NEED_TITLE) {	if (needs & NEED_TITLE) {
4649	newLine = addLine(new, config->cfi, LT_TITLE,	newLine = addLine(new, config->cfi, LT_TITLE,
4650	config->secondaryIndent,	config->secondaryIndent, newKernelTitle);
4651	newKernelTitle);	needs &= ~NEED_TITLE;
4652	needs &= ~NEED_TITLE;	}
4653	}	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4654	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {	newLine = addLine(new, config->cfi, LT_HYPER,
4655	newLine = addLine(new, config->cfi, LT_HYPER,	config->secondaryIndent,
4656	config->secondaryIndent,	newMBKernel + strlen(prefix));
4657	newMBKernel + strlen(prefix));	needs &= ~NEED_MB;
4658	needs &= ~NEED_MB;	}
4659	}	if (needs & NEED_KERNEL) {
4660	if (needs & NEED_KERNEL) {	newLine = addLine(new, config->cfi,
4661	newLine = addLine(new, config->cfi,	(new->multiboot
4662	(new->multiboot && getKeywordByType(LT_MBMODULE,	&& getKeywordByType(LT_MBMODULE,
4663	config->cfi)) ?	config->cfi))
4664	LT_MBMODULE : LT_KERNEL,	? LT_MBMODULE : preferredLineType(LT_KERNEL,
4665	config->secondaryIndent,	config->
4666	newKernelPath + strlen(prefix));	cfi),
4667	needs &= ~NEED_KERNEL;	config->secondaryIndent,
4668	}	newKernelPath + strlen(prefix));
4669	if (needs & NEED_MB) {	needs &= ~NEED_KERNEL;
4670	newLine = addLine(new, config->cfi, LT_HYPER,	}
4671	config->secondaryIndent,	if (needs & NEED_MB) {
4672	newMBKernel + strlen(prefix));	newLine = addLine(new, config->cfi, LT_HYPER,
4673	needs &= ~NEED_MB;	config->secondaryIndent,
4674	}	newMBKernel + strlen(prefix));
4675	if (needs & NEED_INITRD) {	needs &= ~NEED_MB;
4676	char *initrdVal;	}
4677	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);	if (needs & NEED_INITRD) {
4678	newLine = addLine(new, config->cfi,	char *initrdVal;
4679	(new->multiboot && getKeywordByType(LT_MBMODULE,	initrdVal =
4680	config->cfi)) ?	getInitrdVal(config, prefix, NULL, newKernelInitrd,
4681	LT_MBMODULE : LT_INITRD,	extraInitrds, extraInitrdCount);
4682	config->secondaryIndent,	newLine =
4683	initrdVal);	addLine(new, config->cfi,
4684	free(initrdVal);	(new->multiboot
4685	needs &= ~NEED_INITRD;	&& getKeywordByType(LT_MBMODULE, config->cfi))
4686	}	? LT_MBMODULE : preferredLineType(LT_INITRD,
4687	if (needs & NEED_END) {	config->cfi),
4688	newLine = addLine(new, config->cfi, LT_ENTRY_END,	config->secondaryIndent, initrdVal);
4689	config->secondaryIndent, NULL);	free(initrdVal);
4690	needs &= ~NEED_END;	needs &= ~NEED_INITRD;
4691	}	}
4692		if (needs & NEED_DEVTREE) {
4693		newLine = addLine(new, config->cfi, LT_DEVTREE,
4694		config->secondaryIndent, newDevTreePath);
4695		needs &= ~NEED_DEVTREE;
4696		}
4697
4698		/* NEEDS_END must be last on bootloaders that need it... */
4699		if (needs & NEED_END) {
4700		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4701		config->secondaryIndent, NULL);
4702		needs &= ~NEED_END;
4703		}
4704
4705	if (needs) {	if (needs) {
4706	printf(_("grubby: needs=%d, aborting\n"), needs);	printf(_("grubby: needs=%d, aborting\n"), needs);
4707	abort();	abort();
4708	}	}
4709
4710	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	if (updateImage(config, "0", prefix, newKernelArgs, NULL,
4711	newMBKernelArgs, NULL)) return 1;	newMBKernelArgs, NULL))
4712		return 1;
4713
4714	return 0;	return 0;
4715	}	}
4716
4717	static void traceback(int signum)	int main(int argc, const char **argv)
4718	{	{
4719	void *array[40];	poptContext optCon;
4720	size_t size;	const char *grubConfig = NULL;
4721		char *outputFile = NULL;
4722	signal(SIGSEGV, SIG_DFL);	int arg = 0;
4723	memset(array, '\0', sizeof (array));	int flags = 0;
4724	size = backtrace(array, 40);	int badImageOkay = 0;
4725		int configureGrub2 = 0;
4726	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4727	(unsigned long)size);	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4728	backtrace_symbols_fd(array, size, STDERR_FILENO);	int configureExtLinux = 0;
4729	exit(1);	int bootloaderProbe = 0;
4730	}	int extraInitrdCount = 0;
4731		char *updateKernelPath = NULL;
4732	int main(int argc, const char ** argv) {	char *newKernelPath = NULL;
4733	poptContext optCon;	char *removeKernelPath = NULL;
4734	const char * grubConfig = NULL;	char *newKernelArgs = NULL;
4735	char * outputFile = NULL;	char *newKernelInitrd = NULL;
4736	int arg = 0;	char *newKernelTitle = NULL;
4737	int flags = 0;	char *newDevTreePath = NULL;
4738	int badImageOkay = 0;	char *newMBKernel = NULL;
4739	int configureGrub2 = 0;	char *newMBKernelArgs = NULL;
4740	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	char *removeMBKernelArgs = NULL;
4741	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	char *removeMBKernel = NULL;
4742	int configureExtLinux = 0;	char *bootPrefix = NULL;
4743	int bootloaderProbe = 0;	char *defaultKernel = NULL;
4744	int extraInitrdCount = 0;	char *removeArgs = NULL;
4745	char * updateKernelPath = NULL;	char *kernelInfo = NULL;
4746	char * newKernelPath = NULL;	char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4747	char * removeKernelPath = NULL;	char *envPath = NULL;
4748	char * newKernelArgs = NULL;	const char *chptr = NULL;
4749	char * newKernelInitrd = NULL;	struct configFileInfo *cfi = NULL;
4750	char * newKernelTitle = NULL;	struct grubConfig *config;
4751	char * newKernelVersion = NULL;	struct singleEntry *template = NULL;
4752	char * newMBKernel = NULL;	int copyDefault = 0, makeDefault = 0;
4753	char * newMBKernelArgs = NULL;	int displayDefault = 0;
4754	char * removeMBKernelArgs = NULL;	int displayDefaultIndex = 0;
4755	char * removeMBKernel = NULL;	int displayDefaultTitle = 0;
4756	char * bootPrefix = NULL;	int defaultIndex = -1;
4757	char * defaultKernel = NULL;	struct poptOption options[] = {
4758	char * removeArgs = NULL;	{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4759	char * kernelInfo = NULL;	_("add an entry for the specified kernel"), _("kernel-path")},
4760	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4761	const char * chptr = NULL;	_("add an entry for the specified multiboot kernel"), NULL},
4762	struct configFileInfo * cfi = NULL;	{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4763	struct grubConfig * config;	_("default arguments for the new kernel or new arguments for "
4764	struct singleEntry * template = NULL;	"kernel being updated"), _("args")},
4765	int copyDefault = 0, makeDefault = 0;	{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4766	int displayDefault = 0;	_("default arguments for the new multiboot kernel or "
4767	int displayDefaultIndex = 0;	"new arguments for multiboot kernel being updated"), NULL},
4768	int displayDefaultTitle = 0;	{"bad-image-okay", 0, 0, &badImageOkay, 0,
4769	int defaultIndex = -1;	_
4770	struct poptOption options[] = {	("don't sanity check images in boot entries (for testing only)"),
4771	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	NULL},
4772	_("add an entry for the specified kernel"), _("kernel-path") },	{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4773	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	_
4774	_("add an entry for the specified multiboot kernel"), NULL },	("filestystem which contains /boot directory (for testing only)"),
4775	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	_("bootfs")},
	_("default arguments for the new kernel or new arguments for "
	"kernel being updated"), _("args") },
	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
	_("default arguments for the new multiboot kernel or "
	"new arguments for multiboot kernel being updated"), NULL },
	{ "bad-image-okay", 0, 0, &badImageOkay, 0,
	_("don't sanity check images in boot entries (for testing only)"),
	NULL },
	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
	_("filestystem which contains /boot directory (for testing only)"),
	_("bootfs") },
4776	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)	#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4777	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4778	_("check which bootloader is installed on boot sector") },	_("check which bootloader is installed on boot sector")},
4779	#endif	#endif
4780	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4781	_("path to grub config file to update (\"-\" for stdin)"),	_("path to grub config file to update (\"-\" for stdin)"),
4782	_("path") },	_("path")},
4783	{ "copy-default", 0, 0, &copyDefault, 0,	{"copy-default", 0, 0, &copyDefault, 0,
4784	_("use the default boot entry as a template for the new entry "	_("use the default boot entry as a template for the new entry "
4785	"being added; if the default is not a linux image, or if "	"being added; if the default is not a linux image, or if "
4786	"the kernel referenced by the default image does not exist, "	"the kernel referenced by the default image does not exist, "
4787	"the first linux entry whose kernel does exist is used as the "	"the first linux entry whose kernel does exist is used as the "
4788	"template"), NULL },	"template"), NULL},
4789	{ "debug", 0, 0, &debug, 0,	{"debug", 0, 0, &debug, 0,
4790	_("print debugging information for failures") },	_("print debugging information for failures")},
4791	{ "default-kernel", 0, 0, &displayDefault, 0,	{"default-kernel", 0, 0, &displayDefault, 0,
4792	_("display the path of the default kernel") },	_("display the path of the default kernel")},
4793	{ "default-index", 0, 0, &displayDefaultIndex, 0,	{"default-index", 0, 0, &displayDefaultIndex, 0,
4794	_("display the index of the default kernel") },	_("display the index of the default kernel")},
4795	{ "default-title", 0, 0, &displayDefaultTitle, 0,	{"default-title", 0, 0, &displayDefaultTitle, 0,
4796	_("display the title of the default kernel") },	_("display the title of the default kernel")},
4797	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,	{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4798	_("configure elilo bootloader") },	_("device tree file for new stanza"), _("dtb-path")},
4799	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4800	_("configure extlinux bootloader (from syslinux)") },	_("device tree directory for new stanza"), _("dtb-path")},
4801	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4802	_("configure grub bootloader") },	_("configure elilo bootloader")},
4803	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,	{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4804	_("configure grub2 bootloader") },	_("force grub2 stanzas to use efi")},
4805	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,	{"env", 0, POPT_ARG_STRING, &envPath, 0,
4806	_("display boot information for specified kernel"),	_("path for environment data"),
4807	_("kernel-path") },	_("path")},
4808	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,	{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4809	_("initrd image for the new kernel"), _("initrd-path") },	_("configure extlinux bootloader (from syslinux)")},
4810	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',	{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4811	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },	_("configure grub bootloader")},
4812	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,	{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4813	_("configure lilo bootloader") },	_("configure grub2 bootloader")},
4814	{ "make-default", 0, 0, &makeDefault, 0,	{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4815	_("make the newly added entry the default boot entry"), NULL },	_("display boot information for specified kernel"),
4816	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,	_("kernel-path")},
4817	_("path to output updated config file (\"-\" for stdout)"),	{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4818	_("path") },	_("initrd image for the new kernel"), _("initrd-path")},
4819	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,	{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4820	_("remove kernel arguments"), NULL },	_
4821	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,	("auxiliary initrd image for things other than the new kernel"),
4822	_("remove multiboot kernel arguments"), NULL },	_("initrd-path")},
4823	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,	{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4824	_("remove all entries for the specified kernel"),	_("configure lilo bootloader")},
4825	_("kernel-path") },	{"make-default", 0, 0, &makeDefault, 0,
4826	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,	_("make the newly added entry the default boot entry"), NULL},
4827	_("remove all entries for the specified multiboot kernel"), NULL },	{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4828	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,	_("path to output updated config file (\"-\" for stdout)"),
4829	_("make the first entry referencing the specified kernel "	_("path")},
4830	"the default"), _("kernel-path") },	{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4831	{ "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,	_("remove kernel arguments"), NULL},
4832	_("make the given entry index the default entry"),	{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4833	_("entry-index") },	_("remove multiboot kernel arguments"), NULL},
4834	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,	{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4835	_("configure silo bootloader") },	_("remove all entries for the specified kernel"),
4836	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,	_("kernel-path")},
4837	_("title to use for the new kernel entry"), _("entry-title") },	{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4838	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,	_("remove all entries for the specified multiboot kernel"),
4839	_("updated information for the specified kernel"),	NULL},
4840	_("kernel-path") },	{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4841	{ "version", 'v', 0, NULL, 'v',	_("make the first entry referencing the specified kernel "
4842	_("print the version of this program and exit"), NULL },	"the default"), _("kernel-path")},
4843	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,	{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4844	_("configure yaboot bootloader") },	_("make the given entry index the default entry"),
4845	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,	_("entry-index")},
4846	_("configure zipl bootloader") },	{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4847	POPT_AUTOHELP	_("configure silo bootloader")},
4848	{ 0, 0, 0, 0, 0 }	{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4849	};	_("title to use for the new kernel entry"), _("entry-title")},
4850		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4851	useextlinuxmenu=0;	_("updated information for the specified kernel"),
4852		_("kernel-path")},
4853	signal(SIGSEGV, traceback);	{"version", 'v', 0, NULL, 'v',
4854		_("print the version of this program and exit"), NULL},
4855	optCon = poptGetContext("grubby", argc, argv, options, 0);	{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4856	poptReadDefaultConfig(optCon, 1);	_("configure yaboot bootloader")},
4857		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4858	while ((arg = poptGetNextOpt(optCon)) >= 0) {	_("configure zipl bootloader")},
4859	switch (arg) {	POPT_AUTOHELP {0, 0, 0, 0, 0}
4860	case 'v':	};
4861	printf("grubby version %s\n", VERSION);
4862	exit(0);	useextlinuxmenu = 0;
4863	break;
4864	case 'i':	int i = 0;
4865	if (extraInitrdCount < MAX_EXTRA_INITRDS) {	for (int j = 1; j < argc; j++)
4866	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));	i += strlen(argv[j]) + 1;
4867	} else {	saved_command_line = malloc(i);
4868	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);	if (!saved_command_line) {
4869	return 1;	fprintf(stderr, "grubby: %m\n");
4870	}	exit(1);
4871	break;	}
4872		saved_command_line[0] = '\0';
4873		for (int j = 1; j < argc; j++) {
4874		strcat(saved_command_line, argv[j]);
4875		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4876		}
4877
4878		optCon = poptGetContext("grubby", argc, argv, options, 0);
4879		poptReadDefaultConfig(optCon, 1);
4880
4881		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4882		switch (arg) {
4883		case 'v':
4884		printf("grubby version %s\n", VERSION);
4885		exit(0);
4886		break;
4887		case 'i':
4888		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4889		extraInitrds[extraInitrdCount++] =
4890		strdup(poptGetOptArg(optCon));
4891		} else {
4892		fprintf(stderr,
4893		_
4894		("grubby: extra initrd maximum is %d\n"),
4895		extraInitrdCount);
4896		return 1;
4897		}
4898		break;
4899		}
4900	}	}
	}
	if (arg < -1) {
	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	poptStrerror(arg));
	return 1;
	}
4901
4902	if ((chptr = poptGetArg(optCon))) {	if (arg < -1) {
4903	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);	fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4904	return 1;	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4905	}	poptStrerror(arg));
4906		return 1;
4907		}
4908
4909	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +	if ((chptr = poptGetArg(optCon))) {
4910	configureYaboot + configureSilo + configureZipl +	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4911	configureExtLinux ) > 1) {	return 1;
4912	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;
	}
4913
4914	if (!cfi) {	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
4915	if (grub2FindConfig(&grub2ConfigType))	configureYaboot + configureSilo + configureZipl +
4916	cfi = &grub2ConfigType;	configureExtLinux) > 1) {
4917	else	fprintf(stderr,
4918	#ifdef __ia64__	_("grubby: cannot specify multiple bootloaders\n"));
4919	cfi = &eliloConfigType;	return 1;
4920	#elif __powerpc__	} else if (bootloaderProbe && grubConfig) {
4921	cfi = &yabootConfigType;	fprintf(stderr,
4922	#elif __sparc__	_
4923	cfi = &siloConfigType;	("grubby: cannot specify config file with --bootloader-probe\n"));
4924	#elif __s390__	return 1;
4925	cfi = &ziplConfigType;	} else if (configureGrub2) {
4926	#elif __s390x__	cfi = &grub2ConfigType;
4927	cfi = &ziplConfigtype;	if (envPath)
4928	#else	cfi->envFile = envPath;
4929	cfi = &grubConfigType;	} else if (configureLilo) {
4930	#endif	cfi = &liloConfigType;
4931	}	} else if (configureGrub) {
4932		cfi = &grubConfigType;
4933		} else if (configureELilo) {
4934		cfi = &eliloConfigType;
4935		} else if (configureYaboot) {
4936		cfi = &yabootConfigType;
4937		} else if (configureSilo) {
4938		cfi = &siloConfigType;
4939		} else if (configureZipl) {
4940		cfi = &ziplConfigType;
4941		} else if (configureExtLinux) {
4942		cfi = &extlinuxConfigType;
4943		useextlinuxmenu = 1;
4944		}
4945
4946		if (!cfi) {
4947		if (grub2FindConfig(&grub2ConfigType)) {
4948		cfi = &grub2ConfigType;
4949		if (envPath)
4950		cfi->envFile = envPath;
4951		} else
4952		#ifdef __ia64__
4953		cfi = &eliloConfigType;
4954		#elif __powerpc__
4955		cfi = &yabootConfigType;
4956		#elif __sparc__
4957		cfi = &siloConfigType;
4958		#elif __s390__
4959		cfi = &ziplConfigType;
4960		#elif __s390x__
4961		cfi = &ziplConfigtype;
4962		#else
4963		cfi = &grubConfigType;
4964		#endif
4965		}
4966
4967	if (!grubConfig) {	if (!grubConfig) {
4968	if (cfi->findConfig)	if (cfi->findConfig)
4969	grubConfig = cfi->findConfig(cfi);	grubConfig = cfi->findConfig(cfi);
4970	if (!grubConfig)	if (!grubConfig)
4971	grubConfig = cfi->defaultConfig;	grubConfig = cfi->defaultConfig;
4972	}	}
4973
4974	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	if (bootloaderProbe && (displayDefault || kernelInfo ||
4975	newKernelPath || removeKernelPath || makeDefault ||	newKernelPath || removeKernelPath || makeDefault
4976	defaultKernel || displayDefaultIndex || displayDefaultTitle ||	|| defaultKernel || displayDefaultIndex
4977	(defaultIndex >= 0))) {	|| displayDefaultTitle
4978	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	|| (defaultIndex >= 0))) {
4979		fprintf(stderr,
4980		_("grubby: --bootloader-probe may not be used with "
4981	"specified option"));	"specified option"));
4982	return 1;	return 1;
4983	}	}
4984
4985	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
4986	removeKernelPath)) {	removeKernelPath)) {
4987	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
4988	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
4989	return 1;	return 1;
4990	}	}
4991
4992	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
4993	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
4994	return 1;	return 1;
4995	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
4996	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
4997	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
4998	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
4999	return 1;	return 1;
5000	}	}
5001
5002	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5003	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5004	"not be used together"));	"not be used together"));
5005	return 1;	return 1;
5006	}	}
5007
5008	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5009	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5010	"may not be used together\n"));	"may not be used together\n"));
5011	return 1;	return 1;
5012	} else if (defaultKernel && removeKernelPath &&	} else if (defaultKernel && removeKernelPath &&
5013	!strcmp(defaultKernel, removeKernelPath)) {	!strcmp(defaultKernel, removeKernelPath)) {
5014	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));	fprintf(stderr,
5015	return 1;	_("grubby: cannot make removed kernel the default\n"));
5016	} else if (defaultKernel && newKernelPath &&	return 1;
5017	!strcmp(defaultKernel, newKernelPath)) {	} else if (defaultKernel && newKernelPath &&
5018	makeDefault = 1;	!strcmp(defaultKernel, newKernelPath)) {
5019	defaultKernel = NULL;	makeDefault = 1;
5020	}	defaultKernel = NULL;
5021	else if (defaultKernel && (defaultIndex >= 0)) {	} else if (defaultKernel && (defaultIndex >= 0)) {
5022	fprintf(stderr, _("grubby: --set-default and --set-default-index "	fprintf(stderr,
5023		_("grubby: --set-default and --set-default-index "
5024	"may not be used together\n"));	"may not be used together\n"));
5025	return 1;	return 1;
5026	}	}
5027
5028	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5029	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5030	"is used\n"));	_("grubby: output file must be specified if stdin "
5031	return 1;	"is used\n"));
5032	}	return 1;
5033		}
5034
5035	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5036	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5037	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5038	&& (defaultIndex == -1)) {	&& !displayDefaultTitle && (defaultIndex == -1)) {
5039	fprintf(stderr, _("grubby: no action specified\n"));	fprintf(stderr, _("grubby: no action specified\n"));
5040	return 1;	return 1;
5041	}	}
5042
5043	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5044
5045	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5046	if (!bootPrefix) {	if (!bootPrefix) {
5047	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5048	if (!bootPrefix) return 1;	if (!bootPrefix)
5049		return 1;
5050		} else {
5051		/* this shouldn't end with a / */
5052		if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5053		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5054		}
5055	} else {	} else {
5056	/* this shouldn't end with a / */	bootPrefix = "";
	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
	bootPrefix[strlen(bootPrefix) - 1] = '\0';
5057	}	}
	} else {
	bootPrefix = "";
	}
5058
5059	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5060	extraInitrdCount > 0) {	fprintf(stderr,
5061	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5062	return 1;	cfi->defaultConfig);
5063	}	return 1;
5064		}
5065
5066	if (bootloaderProbe) {	if (bootloaderProbe) {
5067	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5068	struct grubConfig * lconfig, * gconfig, * yconfig, * econfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5069
5070	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5071	if (grub2config) {	if (grub2config) {
5072	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5073	if (!gconfig)	if (!gconfig)
5074	gr2c = 1;	gr2c = 1;
5075	else	else
5076	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5077	}	}
	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(eliloConfigType.defaultConfig, F_OK)) {
	econfig = readConfig(eliloConfigType.defaultConfig,
	&eliloConfigType);
	if (!econfig)
	erc = 1;
	else
	erc = checkForElilo(econfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	extrc = 1;
	else
	extrc = checkForExtLinux(lconfig);
	}
	if (!access(yabootConfigType.defaultConfig, F_OK)) {
	yconfig = readConfig(yabootConfigType.defaultConfig,
	&yabootConfigType);
	if (!yconfig)
	yrc = 1;
	else
	yrc = checkForYaboot(yconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 ||
	erc == 1)
	return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (extrc == 2) printf("extlinux\n");
	if (yrc == 2) printf("yaboot\n");
	if (erc == 2) printf("elilo\n");
5078
5079	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5080	}	if (!access(grubconfig, F_OK)) {
5081		gconfig = readConfig(grubconfig, &grubConfigType);
5082		if (!gconfig)
5083		grc = 1;
5084		else
5085		grc = checkForGrub(gconfig);
5086		}
5087
5088	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5089	if (!config) return 1;	lconfig =
5090		readConfig(liloConfigType.defaultConfig,
5091		&liloConfigType);
5092		if (!lconfig)
5093		lrc = 1;
5094		else
5095		lrc = checkForLilo(lconfig);
5096		}
5097
5098	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5099	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5100	struct singleEntry * entry;	&eliloConfigType);
5101	char * rootspec;	if (!econfig)
5102		erc = 1;
5103	if (config->defaultImage == -1) return 0;	else
5104	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5105	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));
5106
5107	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5108		lconfig =
5109		readConfig(extlinuxConfigType.defaultConfig,
5110		&extlinuxConfigType);
5111		if (!lconfig)
5112		extrc = 1;
5113		else
5114		extrc = checkForExtLinux(lconfig);
5115		}
5116
5117	} else if (displayDefaultTitle) {	if (!access(yabootConfigType.defaultConfig, F_OK)) {
5118	struct singleLine * line;	yconfig = readConfig(yabootConfigType.defaultConfig,
5119	struct singleEntry * entry;	&yabootConfigType);
5120		if (!yconfig)
5121	if (config->defaultImage == -1) return 0;	yrc = 1;
5122	entry = findEntryByIndex(config, config->defaultImage);	else
5123	if (!entry) return 0;	yrc = checkForYaboot(yconfig);
5124		}
	if (!configureGrub2) {
	line = getLineByType(LT_TITLE, entry->lines);
	if (!line) return 0;
	printf("%s\n", line->elements[1].item);
5125
5126	} else {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5127	char * title;	|| erc == 1)
5128		return 1;
5129
5130		if (lrc == 2)
5131		printf("lilo\n");
5132		if (gr2c == 2)
5133		printf("grub2\n");
5134		if (grc == 2)
5135		printf("grub\n");
5136		if (extrc == 2)
5137		printf("extlinux\n");
5138		if (yrc == 2)
5139		printf("yaboot\n");
5140		if (erc == 2)
5141		printf("elilo\n");
5142
5143	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");	return 0;
	line = getLineByType(LT_MENUENTRY, entry->lines);
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5144	}	}
	return 0;
5145
5146	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5147	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5148	printf("%i\n", config->defaultImage);	exit(1);
5149		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5150
5151	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5152	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5153	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5154	bootPrefix, flags, defaultIndex);
5155	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5156	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5157	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5158	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5159	if (updateInitrd(config, updateKernelPath, bootPrefix,
5160	newKernelInitrd)) return 1;	if (config->defaultImage == -1)
5161	}	return 0;
5162	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5163	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5164	(const char **)extraInitrds, extraInitrdCount,	config->defaultImage = 0;
5165	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5166		if (!entry)
5167		return 0;
5168	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5169	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5170	"Not writing out new config.\n"));
5171	return 1;	line =
5172	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5173		LT_KERNEL_16, entry->lines);
5174		if (!line)
5175		return 0;
5176
5177		rootspec = getRootSpecifier(line->elements[1].item);
5178		printf("%s%s\n", bootPrefix, line->elements[1].item +
5179		((rootspec != NULL) ? strlen(rootspec) : 0));
5180
5181		return 0;
5182
5183		} else if (displayDefaultTitle) {
5184		struct singleLine *line;
5185		struct singleEntry *entry;
5186
5187		if (config->defaultImage == -1)
5188		return 0;
5189		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5190		cfi->defaultIsSaved)
5191		config->defaultImage = 0;
5192		entry = findEntryByIndex(config, config->defaultImage);
5193		if (!entry)
5194		return 0;
5195
5196		if (!configureGrub2) {
5197		char *title;
5198		line = getLineByType(LT_TITLE, entry->lines);
5199		if (!line)
5200		return 0;
5201		title = extractTitle(config, line);
5202		if (!title)
5203		return 0;
5204		printf("%s\n", title);
5205		free(title);
5206		} else {
5207		char *title;
5208
5209		dbgPrintf
5210		("This is GRUB2, default title is embeded in menuentry\n");
5211		line = getLineByType(LT_MENUENTRY, entry->lines);
5212		if (!line)
5213		return 0;
5214		title = grub2ExtractTitle(line);
5215		if (title)
5216		printf("%s\n", title);
5217		}
5218		return 0;
5219
5220		} else if (displayDefaultIndex) {
5221		if (config->defaultImage == -1)
5222		return 0;
5223		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5224		cfi->defaultIsSaved)
5225		config->defaultImage = 0;
5226		printf("%i\n", config->defaultImage);
5227		return 0;
5228
5229		} else if (kernelInfo)
5230		return displayInfo(config, kernelInfo, bootPrefix);
5231
5232		if (copyDefault) {
5233		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5234		if (!template)
5235		return 1;
5236		}
5237
5238		markRemovedImage(config, removeKernelPath, bootPrefix);
5239		markRemovedImage(config, removeMBKernel, bootPrefix);
5240		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5241		makeDefault, bootPrefix, flags, defaultIndex);
5242		setFallbackImage(config, newKernelPath != NULL);
5243		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5244		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5245		return 1;
5246		if (updateKernelPath && newKernelInitrd) {
5247		if (newMBKernel) {
5248		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5249		bootPrefix, newKernelInitrd,
5250		newKernelTitle))
5251		return 1;
5252		} else {
5253		if (updateInitrd(config, updateKernelPath, bootPrefix,
5254		newKernelInitrd, newKernelTitle))
5255		return 1;
5256		}
5257		}
5258		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5259		newKernelTitle, newKernelArgs, newKernelInitrd,
5260		(const char **)extraInitrds, extraInitrdCount,
5261		newMBKernel, newMBKernelArgs, newDevTreePath))
5262		return 1;
5263
5264		if (numEntries(config) == 0) {
5265		fprintf(stderr,
5266		_("grubby: doing this would leave no kernel entries. "
5267		"Not writing out new config.\n"));
5268		return 1;
5269		}
5270
5271	if (!outputFile)	if (!outputFile)
5272	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5273
5274	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5275	}	}

---

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Legend: Removed from v.1931   changed lines   Added in v.3003