Diff of /tags/grubby-8_40_20200707/grubby.c

Parent Directory | Revision Log | Patch

	revision 1800 by niro, Mon Apr 16 17:46:40 2012 UTC	revision 3024 by niro, Tue Jun 27 14:41:50 2017 UTC
#	Line 36	Line 36
36	#include <signal.h>	#include <signal.h>
37	#include <blkid/blkid.h>	#include <blkid/blkid.h>
38
39		#include "log.h"
40
41	#ifndef DEBUG	#ifndef DEBUG
42	#define DEBUG 0	#define DEBUG 0
43	#endif	#endif
#	Line 46	Line 48
48	#define dbgPrintf(format, args...)	#define dbgPrintf(format, args...)
49	#endif	#endif
50
51	int debug = 0; /* Currently just for template debugging */	int debug = 0; /* Currently just for template debugging */
52
53	#define _(A) (A)	#define _(A) (A)
54
#	Line 56  int debug = 0; /* Currently just for tem	Line 58  int debug = 0; /* Currently just for tem
58	#define NOOP_OPCODE 0x90	#define NOOP_OPCODE 0x90
59	#define JMP_SHORT_OPCODE 0xeb	#define JMP_SHORT_OPCODE 0xeb
60
61		int isEfi = 0;
62
63		#if defined(__aarch64__)
64		#define isEfiOnly 1
65		#else
66		#define isEfiOnly 0
67		#endif
68
69		char *saved_command_line = NULL;
70
71	/* comments get lumped in with indention */	/* comments get lumped in with indention */
72	struct lineElement {	struct lineElement {
73	char * item;	char *item;
74	char * indent;	char *indent;
75	};	};
76
77	enum lineType_e {	enum lineType_e {
78	LT_WHITESPACE   = 1 << 0,	LT_UNIDENTIFIED = 0,
79	LT_TITLE        = 1 << 1,	LT_WHITESPACE = 1 << 0,
80	LT_KERNEL       = 1 << 2,	LT_TITLE = 1 << 1,
81	LT_INITRD       = 1 << 3,	LT_KERNEL = 1 << 2,
82	LT_HYPER        = 1 << 4,	LT_INITRD = 1 << 3,
83	LT_DEFAULT      = 1 << 5,	LT_HYPER = 1 << 4,
84	LT_MBMODULE     = 1 << 6,	LT_DEFAULT = 1 << 5,
85	LT_ROOT         = 1 << 7,	LT_MBMODULE = 1 << 6,
86	LT_FALLBACK     = 1 << 8,	LT_ROOT = 1 << 7,
87	LT_KERNELARGS   = 1 << 9,	LT_FALLBACK = 1 << 8,
88	LT_BOOT         = 1 << 10,	LT_KERNELARGS = 1 << 9,
89	LT_BOOTROOT     = 1 << 11,	LT_BOOT = 1 << 10,
90	LT_LBA          = 1 << 12,	LT_BOOTROOT = 1 << 11,
91	LT_OTHER        = 1 << 13,	LT_LBA = 1 << 12,
92	LT_GENERIC      = 1 << 14,	LT_OTHER = 1 << 13,
93	LT_ECHO    = 1 << 16,	LT_GENERIC = 1 << 14,
94	LT_MENUENTRY    = 1 << 17,	LT_ECHO = 1 << 16,
95	LT_ENTRY_END    = 1 << 18,	LT_MENUENTRY = 1 << 17,
96	LT_SET_VARIABLE = 1 << 19,	LT_ENTRY_END = 1 << 18,
97	LT_UNKNOWN      = 1 << 20,	LT_SET_VARIABLE = 1 << 19,
98		LT_KERNEL_EFI = 1 << 20,
99		LT_INITRD_EFI = 1 << 21,
100		LT_KERNEL_16 = 1 << 22,
101		LT_INITRD_16 = 1 << 23,
102		LT_DEVTREE = 1 << 24,
103		LT_UNKNOWN = 1 << 25,
104	};	};
105
106	struct singleLine {	struct singleLine {
107	char * indent;	char *indent;
108	int numElements;	int numElements;
109	struct lineElement * elements;	struct lineElement *elements;
110	struct singleLine * next;	struct singleLine *next;
111	enum lineType_e type;	enum lineType_e type;
112	};	};
113
114	struct singleEntry {	struct singleEntry {
115	struct singleLine * lines;	struct singleLine *lines;
116	int skip;	int skip;
117	int multiboot;	int multiboot;
118	struct singleEntry * next;	struct singleEntry *next;
119	};	};
120
121	#define GRUBBY_BADIMAGE_OKAY (1 << 0)	#define GRUBBY_BADIMAGE_OKAY (1 << 0)
#	Line 111  struct singleEntry {	Line 129  struct singleEntry {
129	#define NEED_ARGS    (1 << 3)	#define NEED_ARGS    (1 << 3)
130	#define NEED_MB      (1 << 4)	#define NEED_MB      (1 << 4)
131	#define NEED_END     (1 << 5)	#define NEED_END     (1 << 5)
132		#define NEED_DEVTREE (1 << 6)
133
134	#define MAIN_DEFAULT    (1 << 0)	#define MAIN_DEFAULT    (1 << 0)
135		#define FIRST_ENTRY_INDEX    0 /* boot entry index value begin and increment
136		from this initial value */
137		#define NO_DEFAULT_ENTRY    -1 /* indicates that no specific default boot
138		entry was set or currently exists */
139	#define DEFAULT_SAVED       -2	#define DEFAULT_SAVED       -2
140	#define DEFAULT_SAVED_GRUB2 -3	#define DEFAULT_SAVED_GRUB2 -3
141
142	struct keywordTypes {	struct keywordTypes {
143	char * key;	char *key;
144	enum lineType_e type;	enum lineType_e type;
145	char nextChar;	char nextChar;
146	char separatorChar;	char separatorChar;
147	};	};
148
149	struct configFileInfo;	struct configFileInfo;
150
151	typedef const char *(*findConfigFunc)(struct configFileInfo *);	typedef const char *(*findConfigFunc) (struct configFileInfo *);
152	typedef const int (*writeLineFunc)(struct configFileInfo *,	typedef const int (*writeLineFunc) (struct configFileInfo *,
153	struct singleLine *line);	struct singleLine * line);
154		typedef char *(*getEnvFunc) (struct configFileInfo *, char *name);
155		typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value);
156
157	struct configFileInfo {	struct configFileInfo {
158	char * defaultConfig;	char *defaultConfig;
159	findConfigFunc findConfig;	findConfigFunc findConfig;
160	writeLineFunc writeLine;	writeLineFunc writeLine;
161	struct keywordTypes * keywords;	getEnvFunc getEnv;
162	int defaultIsIndex;	setEnvFunc setEnv;
163	int defaultIsVariable;	struct keywordTypes *keywords;
164	int defaultSupportSaved;	int caseInsensitive;
165	enum lineType_e entryStart;	int defaultIsIndex;
166	enum lineType_e entryEnd;	int defaultIsVariable;
167	int needsBootPrefix;	int defaultSupportSaved;
168	int argsInQuotes;	int defaultIsSaved;
169	int maxTitleLength;	int defaultIsUnquoted;
170	int titleBracketed;	enum lineType_e entryStart;
171	int titlePosition;	enum lineType_e entryEnd;
172	int mbHyperFirst;	int needsBootPrefix;
173	int mbInitRdIsModule;	int argsInQuotes;
174	int mbConcatArgs;	int maxTitleLength;
175	int mbAllowExtraInitRds;	int titleBracketed;
176		int titlePosition;
177		int mbHyperFirst;
178		int mbInitRdIsModule;
179		int mbConcatArgs;
180		int mbAllowExtraInitRds;
181		char *envFile;
182	};	};
183
184	struct keywordTypes grubKeywords[] = {	struct keywordTypes grubKeywords[] = {
185	{ "title",    LT_TITLE,    ' ' },	{"title", LT_TITLE, ' '},
186	{ "root",    LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
187	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
188	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
189	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
190	{ "initrd",    LT_INITRD,    ' ', ' ' },	{"initrd", LT_INITRD, ' ', ' '},
191	{ "module",     LT_MBMODULE,    ' ' },	{"module", LT_MBMODULE, ' '},
192	{ "kernel",     LT_HYPER,       ' ' },	{"kernel", LT_HYPER, ' '},
193	{ NULL,    0, 0 },	{NULL, 0, 0},
194	};	};
195
196	const char *grubFindConfig(struct configFileInfo *cfi) {	const char *grubFindConfig(struct configFileInfo *cfi)
197	static const char *configFiles[] = {	{
198	"/etc/grub.conf",	static const char *configFiles[] = {
199	"/boot/grub/grub.conf",	"/boot/grub/grub.conf",
200	"/boot/grub/menu.lst",	"/boot/grub/menu.lst",
201	NULL	"/etc/grub.conf",
202	};	NULL
203	static int i = -1;	};
204		static int i = -1;
205	if (i == -1) {
206	for (i = 0; configFiles[i] != NULL; i++) {	if (i == -1) {
207	dbgPrintf("Checking \"%s\": ", configFiles[i]);	for (i = 0; configFiles[i] != NULL; i++) {
208	if (!access(configFiles[i], R_OK)) {	dbgPrintf("Checking \"%s\": ", configFiles[i]);
209	dbgPrintf("found\n");	if (!access(configFiles[i], R_OK)) {
210	return configFiles[i];	dbgPrintf("found\n");
211	}	return configFiles[i];
212	dbgPrintf("not found\n");	}
213		dbgPrintf("not found\n");
214		}
215	}	}
216	}	return configFiles[i];
	return configFiles[i];
217	}	}
218
219	struct configFileInfo grubConfigType = {	struct configFileInfo grubConfigType = {
220	.findConfig = grubFindConfig,	.findConfig = grubFindConfig,
221	.keywords = grubKeywords,	.keywords = grubKeywords,
222	.defaultIsIndex = 1,	.defaultIsIndex = 1,
223	.defaultSupportSaved = 1,	.defaultSupportSaved = 1,
224	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
225	.needsBootPrefix = 1,	.needsBootPrefix = 1,
226	.mbHyperFirst = 1,	.mbHyperFirst = 1,
227	.mbInitRdIsModule = 1,	.mbInitRdIsModule = 1,
228	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
229		.titlePosition = 1,
230	};	};
231
232	struct keywordTypes grub2Keywords[] = {	struct keywordTypes grub2Keywords[] = {
233	{ "menuentry",  LT_MENUENTRY,   ' ' },	{"menuentry", LT_MENUENTRY, ' '},
234	{ "}",          LT_ENTRY_END,   ' ' },	{"}", LT_ENTRY_END, ' '},
235	{ "echo",       LT_ECHO,        ' ' },	{"echo", LT_ECHO, ' '},
236	{ "set",        LT_SET_VARIABLE,' ', '=' },	{"set", LT_SET_VARIABLE, ' ', '='},
237	{ "root",       LT_BOOTROOT,    ' ' },	{"root", LT_BOOTROOT, ' '},
238	{ "default",    LT_DEFAULT,     ' ' },	{"default", LT_DEFAULT, ' '},
239	{ "fallback",   LT_FALLBACK,    ' ' },	{"fallback", LT_FALLBACK, ' '},
240	{ "linux",      LT_KERNEL,      ' ' },	{"linux", LT_KERNEL, ' '},
241	{ "initrd",     LT_INITRD,      ' ', ' ' },	{"linuxefi", LT_KERNEL_EFI, ' '},
242	{ "module",     LT_MBMODULE,    ' ' },	{"linux16", LT_KERNEL_16, ' '},
243	{ "kernel",     LT_HYPER,       ' ' },	{"initrd", LT_INITRD, ' ', ' '},
244	{ NULL, 0, 0 },	{"initrdefi", LT_INITRD_EFI, ' ', ' '},
245	};	{"initrd16", LT_INITRD_16, ' ', ' '},
246		{"module", LT_MBMODULE, ' '},
247	const char *grub2FindConfig(struct configFileInfo *cfi) {	{"kernel", LT_HYPER, ' '},
248	static const char *configFiles[] = {	{"devicetree", LT_DEVTREE, ' '},
249	"/boot/grub/grub-efi.cfg",	{NULL, 0, 0},
250	"/boot/grub/grub.cfg",	};
251	NULL
252	};	const char *grub2FindConfig(struct configFileInfo *cfi)
253	static int i = -1;	{
254	static const char *grub_cfg = "/boot/grub/grub.cfg";	static const char *configFiles[] = {
255		"/boot/grub/grub-efi.cfg",
256	if (i == -1) {	"/boot/grub/grub.cfg",
257	for (i = 0; configFiles[i] != NULL; i++) {	"/etc/grub2-efi.cfg",
258	dbgPrintf("Checking \"%s\": ", configFiles[i]);	"/etc/grub2.cfg",
259	if (!access(configFiles[i], R_OK)) {	"/boot/grub2/grub.cfg",
260		"/boot/grub2-efi/grub.cfg",
261		NULL
262		};
263		static int i = -1;
264		static const char *grub_cfg = "/boot/grub/grub.cfg";
265		int rc = -1;
266
267		if (i == -1) {
268		for (i = 0; configFiles[i] != NULL; i++) {
269		dbgPrintf("Checking \"%s\": ", configFiles[i]);
270		if ((rc = access(configFiles[i], R_OK))) {
271		if (errno == EACCES) {
272		printf
273		("Unable to access bootloader configuration file "
274		"\"%s\": %m\n", configFiles[i]);
275		exit(1);
276		}
277		continue;
278		} else {
279		dbgPrintf("found\n");
280		return configFiles[i];
281		}
282		}
283		}
284
285		/* Ubuntu renames grub2 to grub, so check for the grub.d directory
286		* that isn't in grub1, and if it exists, return the config file path
287		* that they use. */
288		if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
289	dbgPrintf("found\n");	dbgPrintf("found\n");
290	return configFiles[i];	return grub_cfg;
	}
291	}	}
	}
292
293	/* Ubuntu renames grub2 to grub, so check for the grub.d directory	dbgPrintf("not found\n");
294	* that isn't in grub1, and if it exists, return the config file path	return configFiles[i];
295	* that they use. */	}
296	if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) {
297	dbgPrintf("found\n");	/* kind of hacky.  It'll give the first 1024 bytes, ish. */
298	return grub_cfg;	static char *grub2GetEnv(struct configFileInfo *info, char *name)
299	}	{
300		static char buf[1025];
301		char *s = NULL;
302		char *ret = NULL;
303		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
304		int rc =
305		asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name);
306
307		if (rc < 0)
308		return NULL;
309
310		FILE *f = popen(s, "r");
311		if (!f)
312		goto out;
313
314		memset(buf, '\0', sizeof(buf));
315		ret = fgets(buf, 1024, f);
316		pclose(f);
317
318		if (ret) {
319		ret += strlen(name) + 1;
320		ret[strlen(ret) - 1] = '\0';
321		}
322		dbgPrintf("grub2GetEnv(%s): %s\n", name, ret);
323		out:
324		free(s);
325		return ret;
326		}
327
328		static int sPopCount(const char *s, const char *c)
329		{
330		int ret = 0;
331		if (!s)
332		return -1;
333		for (int i = 0; s[i] != '\0'; i++)
334		for (int j = 0; c[j] != '\0'; j++)
335		if (s[i] == c[j])
336		ret++;
337		return ret;
338		}
339
340		static char *shellEscape(const char *s)
341		{
342		int l = strlen(s) + sPopCount(s, "'") * 2;
343
344	dbgPrintf("not found\n");	char *ret = calloc(l + 1, sizeof(*ret));
345	return configFiles[i];	if (!ret)
346		return NULL;
347		for (int i = 0, j = 0; s[i] != '\0'; i++, j++) {
348		if (s[i] == '\'')
349		ret[j++] = '\\';
350		ret[j] = s[i];
351		}
352		return ret;
353		}
354
355		static void unquote(char *s)
356		{
357		int l = strlen(s);
358
359		if ((s[l - 1] == '\'' && s[0] == '\'')
360		|| (s[l - 1] == '"' && s[0] == '"')) {
361		memmove(s, s + 1, l - 2);
362		s[l - 2] = '\0';
363		}
364		}
365
366		static int grub2SetEnv(struct configFileInfo *info, char *name, char *value)
367		{
368		char *s = NULL;
369		int rc = 0;
370		char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv";
371
372		unquote(value);
373		value = shellEscape(value);
374		if (!value)
375		return -1;
376
377		rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value);
378		free(value);
379		if (rc < 0)
380		return -1;
381
382		dbgPrintf("grub2SetEnv(%s): %s\n", name, s);
383		rc = system(s);
384		free(s);
385		return rc;
386		}
387
388		/* this is a gigantic hack to avoid clobbering grub2 variables... */
389		static int is_special_grub2_variable(const char *name)
390		{
391		if (!strcmp(name, "\"${next_entry}\""))
392		return 1;
393		if (!strcmp(name, "\"${prev_saved_entry}\""))
394		return 1;
395		return 0;
396	}	}
397
398	int sizeOfSingleLine(struct singleLine * line) {	int sizeOfSingleLine(struct singleLine *line)
399	int i;	{
400	int count = 0;	int count = 0;
401
402	for (i = 0; i < line->numElements; i++) {	for (int i = 0; i < line->numElements; i++) {
403	int indentSize = 0;	int indentSize = 0;
404
405	count = count + strlen(line->elements[i].item);	count = count + strlen(line->elements[i].item);
406
407	indentSize = strlen(line->elements[i].indent);	indentSize = strlen(line->elements[i].indent);
408	if (indentSize > 0)	if (indentSize > 0)
409	count = count + indentSize;	count = count + indentSize;
410	else	else
411	/* be extra safe and add room for whitespaces */	/* be extra safe and add room for whitespaces */
412	count = count + 1;	count = count + 1;
413	}	}
414
415	/* room for trailing terminator */	/* room for trailing terminator */
416	count = count + 1;	count = count + 1;
417
418	return count;	return count;
419	}	}
420
421	static int isquote(char q)	static int isquote(char q)
422	{	{
423	if (q == '\'' || q == '\"')	if (q == '\'' || q == '\"')
424	return 1;	return 1;
425	return 0;	return 0;
426	}	}
427
428	char *grub2ExtractTitle(struct singleLine * line) {	static int iskernel(enum lineType_e type)
429	char * current;	{
430	char * current_indent;	return (type == LT_KERNEL || type == LT_KERNEL_EFI
431	int current_len;	|| type == LT_KERNEL_16);
432	int current_indent_len;	}
	int i;
	/* bail out if line does not start with menuentry */
	if (strcmp(line->elements[0].item, "menuentry"))
	return NULL;
	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;
	}
433
434	/* if no quotes, return second word verbatim */	static int isinitrd(enum lineType_e type)
435	if (!isquote(*current))	{
436	return current;	return (type == LT_INITRD || type == LT_INITRD_EFI
437		|| type == LT_INITRD_16);
438	/* second element start with a quote, so we have to find the element	}
439	* whose last character is also quote (assuming it's the closing one) */
440	int resultMaxSize;	char *grub2ExtractTitle(struct singleLine *line)
441	char * result;	{
442		char *current;
443	resultMaxSize = sizeOfSingleLine(line);	char *current_indent;
444	result = malloc(resultMaxSize);	int current_len;
445	snprintf(result, resultMaxSize, "%s", ++current);	int current_indent_len;
446		int i;
447	i++;
448	for (; i < line->numElements; ++i) {	/* bail out if line does not start with menuentry */
449		if (strcmp(line->elements[0].item, "menuentry"))
450		return NULL;
451
452		i = 1;
453	current = line->elements[i].item;	current = line->elements[i].item;
454	current_len = strlen(current);	current_len = strlen(current);
	current_indent = line->elements[i].indent;
	current_indent_len = strlen(current_indent);
455
456	strncat(result, current_indent, current_indent_len);	/* if second word is quoted, strip the quotes and return single word */
457	if (!isquote(current[current_len-1])) {	if (isquote(*current) && isquote(current[current_len - 1])) {
458	strncat(result, current, current_len);	char *tmp;
459	} else {
460	strncat(result, current, current_len - 1);	tmp = strdup(current + 1);
461	break;	if (!tmp)
462		return NULL;
463		tmp[strlen(tmp) - 1] = '\0';
464		return tmp;
465		}
466
467		/* if no quotes, return second word verbatim */
468		if (!isquote(*current))
469		return current;
470
471		/* second element start with a quote, so we have to find the element
472		* whose last character is also quote (assuming it's the closing one) */
473		int resultMaxSize;
474		char *result;
475		/* need to ensure that ' does not match " as we search */
476		char quote_char = *current;
477
478		resultMaxSize = sizeOfSingleLine(line);
479		result = malloc(resultMaxSize);
480		snprintf(result, resultMaxSize, "%s", ++current);
481
482		i++;
483		for (; i < line->numElements; ++i) {
484		current = line->elements[i].item;
485		current_len = strlen(current);
486		current_indent = line->elements[i].indent;
487		current_indent_len = strlen(current_indent);
488
489		strncat(result, current_indent, current_indent_len);
490		if (current[current_len - 1] != quote_char) {
491		strncat(result, current, current_len);
492		} else {
493		strncat(result, current, current_len - 1);
494		break;
495		}
496	}	}
497	}	return result;
	return result;
498	}	}
499
500	struct configFileInfo grub2ConfigType = {	struct configFileInfo grub2ConfigType = {
501	.findConfig = grub2FindConfig,	.findConfig = grub2FindConfig,
502	.keywords = grub2Keywords,	.getEnv = grub2GetEnv,
503	.defaultIsIndex = 1,	.setEnv = grub2SetEnv,
504	.defaultSupportSaved = 1,	.keywords = grub2Keywords,
505	.defaultIsVariable = 1,	.defaultIsIndex = 1,
506	.entryStart = LT_MENUENTRY,	.defaultSupportSaved = 1,
507	.entryEnd = LT_ENTRY_END,	.defaultIsVariable = 1,
508	.titlePosition = 1,	.entryStart = LT_MENUENTRY,
509	.needsBootPrefix = 1,	.entryEnd = LT_ENTRY_END,
510	.mbHyperFirst = 1,	.titlePosition = 1,
511	.mbInitRdIsModule = 1,	.needsBootPrefix = 1,
512	.mbAllowExtraInitRds = 1,	.mbHyperFirst = 1,
513		.mbInitRdIsModule = 1,
514		.mbAllowExtraInitRds = 1,
515	};	};
516
517	struct keywordTypes yabootKeywords[] = {	struct keywordTypes yabootKeywords[] = {
518	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
519	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
520	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
521	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
522	{ "bsd",    LT_GENERIC,    '=' },	{"bsd", LT_GENERIC, '='},
523	{ "macos",    LT_GENERIC,    '=' },	{"macos", LT_GENERIC, '='},
524	{ "macosx",    LT_GENERIC,    '=' },	{"macosx", LT_GENERIC, '='},
525	{ "magicboot",  LT_GENERIC,    '=' },	{"magicboot", LT_GENERIC, '='},
526	{ "darwin",    LT_GENERIC,    '=' },	{"darwin", LT_GENERIC, '='},
527	{ "timeout",    LT_GENERIC,    '=' },	{"timeout", LT_GENERIC, '='},
528	{ "install",    LT_GENERIC,    '=' },	{"install", LT_GENERIC, '='},
529	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
530	{ "hfstype",    LT_GENERIC,    '=' },	{"hfstype", LT_GENERIC, '='},
531	{ "delay",    LT_GENERIC,    '=' },	{"delay", LT_GENERIC, '='},
532	{ "defaultos",  LT_GENERIC,     '=' },	{"defaultos", LT_GENERIC, '='},
533	{ "init-message", LT_GENERIC,   '=' },	{"init-message", LT_GENERIC, '='},
534	{ "enablecdboot", LT_GENERIC,   ' ' },	{"enablecdboot", LT_GENERIC, ' '},
535	{ "enableofboot", LT_GENERIC,   ' ' },	{"enableofboot", LT_GENERIC, ' '},
536	{ "enablenetboot", LT_GENERIC,  ' ' },	{"enablenetboot", LT_GENERIC, ' '},
537	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
538	{ "hide",    LT_GENERIC,    ' ' },	{"hide", LT_GENERIC, ' '},
539	{ "protect",    LT_GENERIC,    ' ' },	{"protect", LT_GENERIC, ' '},
540	{ "nobless",    LT_GENERIC,    ' ' },	{"nobless", LT_GENERIC, ' '},
541	{ "nonvram",    LT_GENERIC,    ' ' },	{"nonvram", LT_GENERIC, ' '},
542	{ "brokenosx",  LT_GENERIC,    ' ' },	{"brokenosx", LT_GENERIC, ' '},
543	{ "usemount",   LT_GENERIC,    ' ' },	{"usemount", LT_GENERIC, ' '},
544	{ "mntpoint",   LT_GENERIC,    '=' },	{"mntpoint", LT_GENERIC, '='},
545	{ "partition",  LT_GENERIC,    '=' },	{"partition", LT_GENERIC, '='},
546	{ "device",    LT_GENERIC,    '=' },	{"device", LT_GENERIC, '='},
547	{ "fstype",    LT_GENERIC,    '=' },	{"fstype", LT_GENERIC, '='},
548	{ "initrd",    LT_INITRD,    '=', ';' },	{"initrd", LT_INITRD, '=', ';'},
549	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
550	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
551	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
552	{ NULL,    0, 0 },	{NULL, 0, 0},
553	};	};
554
555	struct keywordTypes liloKeywords[] = {	struct keywordTypes liloKeywords[] = {
556	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
557	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
558	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
559	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
560	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
561	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
562	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
563	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
564	{ "lba",    LT_LBA,    ' ' },	{"lba", LT_LBA, ' '},
565	{ NULL,    0, 0 },	{NULL, 0, 0},
566	};	};
567
568	struct keywordTypes eliloKeywords[] = {	struct keywordTypes eliloKeywords[] = {
569	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
570	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
571	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
572	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
573	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
574	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
575	{ "vmm",    LT_HYPER,       '=' },	{"vmm", LT_HYPER, '='},
576	{ NULL,    0, 0 },	{NULL, 0, 0},
577	};	};
578
579	struct keywordTypes siloKeywords[] = {	struct keywordTypes siloKeywords[] = {
580	{ "label",    LT_TITLE,    '=' },	{"label", LT_TITLE, '='},
581	{ "root",    LT_ROOT,    '=' },	{"root", LT_ROOT, '='},
582	{ "default",    LT_DEFAULT,    '=' },	{"default", LT_DEFAULT, '='},
583	{ "image",    LT_KERNEL,    '=' },	{"image", LT_KERNEL, '='},
584	{ "other",    LT_OTHER,    '=' },	{"other", LT_OTHER, '='},
585	{ "initrd",    LT_INITRD,    '=' },	{"initrd", LT_INITRD, '='},
586	{ "append",    LT_KERNELARGS,  '=' },	{"append", LT_KERNELARGS, '='},
587	{ "boot",    LT_BOOT,    '=' },	{"boot", LT_BOOT, '='},
588	{ NULL,    0, 0 },	{NULL, 0, 0},
589	};	};
590
591	struct keywordTypes ziplKeywords[] = {	struct keywordTypes ziplKeywords[] = {
592	{ "target",     LT_BOOTROOT,    '=' },	{"target", LT_BOOTROOT, '='},
593	{ "image",      LT_KERNEL,      '=' },	{"image", LT_KERNEL, '='},
594	{ "ramdisk",    LT_INITRD,      '=' },	{"ramdisk", LT_INITRD, '='},
595	{ "parameters", LT_KERNELARGS,  '=' },	{"parameters", LT_KERNELARGS, '='},
596	{ "default",    LT_DEFAULT,     '=' },	{"default", LT_DEFAULT, '='},
597	{ NULL,         0, 0 },	{NULL, 0, 0},
598	};	};
599
600	struct keywordTypes extlinuxKeywords[] = {	struct keywordTypes extlinuxKeywords[] = {
601	{ "label",    LT_TITLE,    ' ' },	{"label", LT_TITLE, ' '},
602	{ "root",    LT_ROOT,    ' ' },	{"root", LT_ROOT, ' '},
603	{ "default",    LT_DEFAULT,    ' ' },	{"default", LT_DEFAULT, ' '},
604	{ "kernel",    LT_KERNEL,    ' ' },	{"kernel", LT_KERNEL, ' '},
605	{ "initrd",    LT_INITRD,      ' ', ',' },	{"initrd", LT_INITRD, ' ', ','},
606	{ "append",    LT_KERNELARGS,  ' ' },	{"append", LT_KERNELARGS, ' '},
607	{ "prompt",     LT_UNKNOWN,     ' ' },	{"prompt", LT_UNKNOWN, ' '},
608	{ NULL,    0, 0 },	{"fdt", LT_DEVTREE, ' '},
609		{"fdtdir", LT_DEVTREE, ' '},
610		{NULL, 0, 0},
611	};	};
612
613	int useextlinuxmenu;	int useextlinuxmenu;
614	struct configFileInfo eliloConfigType = {	struct configFileInfo eliloConfigType = {
615	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",	.defaultConfig = "/boot/efi/EFI/redhat/elilo.conf",
616	.keywords = eliloKeywords,	.keywords = eliloKeywords,
617	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
618	.needsBootPrefix = 1,	.needsBootPrefix = 1,
619	.argsInQuotes = 1,	.argsInQuotes = 1,
620	.mbConcatArgs = 1,	.mbConcatArgs = 1,
621		.titlePosition = 1,
622	};	};
623
624	struct configFileInfo liloConfigType = {	struct configFileInfo liloConfigType = {
625	.defaultConfig = "/etc/lilo.conf",	.defaultConfig = "/etc/lilo.conf",
626	.keywords = liloKeywords,	.keywords = liloKeywords,
627	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
628	.argsInQuotes = 1,	.argsInQuotes = 1,
629	.maxTitleLength = 15,	.maxTitleLength = 15,
630		.titlePosition = 1,
631	};	};
632
633	struct configFileInfo yabootConfigType = {	struct configFileInfo yabootConfigType = {
634	.defaultConfig = "/etc/yaboot.conf",	.defaultConfig = "/etc/yaboot.conf",
635	.keywords = yabootKeywords,	.keywords = yabootKeywords,
636	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
637	.needsBootPrefix = 1,	.needsBootPrefix = 1,
638	.argsInQuotes = 1,	.argsInQuotes = 1,
639	.maxTitleLength = 15,	.maxTitleLength = 15,
640	.mbAllowExtraInitRds = 1,	.mbAllowExtraInitRds = 1,
641		.titlePosition = 1,
642	};	};
643
644	struct configFileInfo siloConfigType = {	struct configFileInfo siloConfigType = {
645	.defaultConfig = "/etc/silo.conf",	.defaultConfig = "/etc/silo.conf",
646	.keywords = siloKeywords,	.keywords = siloKeywords,
647	.entryStart = LT_KERNEL,	.entryStart = LT_KERNEL,
648	.needsBootPrefix = 1,	.needsBootPrefix = 1,
649	.argsInQuotes = 1,	.argsInQuotes = 1,
650	.maxTitleLength = 15,	.maxTitleLength = 15,
651		.titlePosition = 1,
652	};	};
653
654	struct configFileInfo ziplConfigType = {	struct configFileInfo ziplConfigType = {
655	.defaultConfig = "/etc/zipl.conf",	.defaultConfig = "/etc/zipl.conf",
656	.keywords = ziplKeywords,	.keywords = ziplKeywords,
657	.entryStart = LT_TITLE,	.entryStart = LT_TITLE,
658	.argsInQuotes = 1,	.argsInQuotes = 1,
659	.titleBracketed = 1,	.titleBracketed = 1,
660	};	};
661
662	struct configFileInfo extlinuxConfigType = {	struct configFileInfo extlinuxConfigType = {
663	.defaultConfig = "/boot/extlinux/extlinux.conf",	.defaultConfig = "/boot/extlinux/extlinux.conf",
664	.keywords = extlinuxKeywords,	.keywords = extlinuxKeywords,
665	.entryStart = LT_TITLE,	.caseInsensitive = 1,
666	.needsBootPrefix = 1,	.entryStart = LT_TITLE,
667	.maxTitleLength = 255,	.needsBootPrefix = 1,
668	.mbAllowExtraInitRds = 1,	.maxTitleLength = 255,
669		.mbAllowExtraInitRds = 1,
670		.defaultIsUnquoted = 1,
671		.titlePosition = 1,
672	};	};
673
674	struct grubConfig {	struct grubConfig {
675	struct singleLine * theLines;	struct singleLine *theLines;
676	struct singleEntry * entries;	struct singleEntry *entries;
677	char * primaryIndent;	char *primaryIndent;
678	char * secondaryIndent;	char *secondaryIndent;
679	int defaultImage;    /* -1 if none specified -- this value is	int defaultImage; /* -1 if none specified -- this value is
680	* written out, overriding original */	* written out, overriding original */
681	int fallbackImage;    /* just like defaultImage */	int fallbackImage; /* just like defaultImage */
682	int flags;	int flags;
683	struct configFileInfo * cfi;	struct configFileInfo *cfi;
684		int isModified; /* assumes only one entry added
685		per invocation of grubby */
686	};	};
687
688	blkid_cache blkid;	blkid_cache blkid;
689
690	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index);	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index);
691	struct singleEntry * findEntryByPath(struct grubConfig * cfg,	struct singleEntry *findEntryByPath(struct grubConfig *cfg,
692	const char * path, const char * prefix,	const char *path, const char *prefix,
693	int * index);	int *index);
694	static int readFile(int fd, char ** bufPtr);	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
695	static void lineInit(struct singleLine * line);	int *index);
696	struct singleLine * lineDup(struct singleLine * line);	static int readFile(int fd, char **bufPtr);
697	static void lineFree(struct singleLine * line);	static void lineInit(struct singleLine *line);
698	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line);
699	struct configFileInfo * cfi);	static void lineFree(struct singleLine *line);
700	static int getNextLine(char ** bufPtr, struct singleLine * line,	static int lineWrite(FILE * out, struct singleLine *line,
701	struct configFileInfo * cfi);	struct configFileInfo *cfi);
702	static char * getRootSpecifier(char * str);	static int getNextLine(char **bufPtr, struct singleLine *line,
703	static void requote(struct singleLine *line, struct configFileInfo * cfi);	struct configFileInfo *cfi);
704	static void insertElement(struct singleLine * line,	static char *getRootSpecifier(char *str);
705	const char * item, int insertHere,	static void requote(struct singleLine *line, struct configFileInfo *cfi);
706	struct configFileInfo * cfi);	static void insertElement(struct singleLine *line,
707	static void removeElement(struct singleLine * line, int removeHere);	const char *item, int insertHere,
708	static struct keywordTypes * getKeywordByType(enum lineType_e type,	struct configFileInfo *cfi);
709	struct configFileInfo * cfi);	static void removeElement(struct singleLine *line, int removeHere);
710	static enum lineType_e getTypeByKeyword(char * keyword,	static struct keywordTypes *getKeywordByType(enum lineType_e type,
711	struct configFileInfo * cfi);	struct configFileInfo *cfi);
712	static struct singleLine * getLineByType(enum lineType_e type,	static enum lineType_e getTypeByKeyword(char *keyword,
713	struct singleLine * line);	struct configFileInfo *cfi);
714	static int checkForExtLinux(struct grubConfig * config);	static struct singleLine *getLineByType(enum lineType_e type,
715	struct singleLine * addLineTmpl(struct singleEntry * entry,	struct singleLine *line);
716	struct singleLine * tmplLine,	static int checkForExtLinux(struct grubConfig *config);
717	struct singleLine * prevLine,	struct singleLine *addLineTmpl(struct singleEntry *entry,
718	const char * val,	struct singleLine *tmplLine,
719	struct configFileInfo * cfi);	struct singleLine *prevLine,
720	struct singleLine *  addLine(struct singleEntry * entry,	const char *val, struct configFileInfo *cfi);
721	struct configFileInfo * cfi,	struct singleLine *addLine(struct singleEntry *entry,
722	enum lineType_e type, char * defaultIndent,	struct configFileInfo *cfi,
723	const char * val);	enum lineType_e type, char *defaultIndent,
724		const char *val);
725
726	static char * sdupprintf(const char *format, ...)	static char *sdupprintf(const char *format, ...)
727	#ifdef __GNUC__	#ifdef __GNUC__
728	__attribute__ ((format (printf, 1, 2)));	__attribute__ ((format(printf, 1, 2)));
729	#else	#else
730	;	;
731	#endif	#endif
732
733	static char * sdupprintf(const char *format, ...) {	static char *sdupprintf(const char *format, ...)
734	char *buf = NULL;	{
735	char c;	char *buf = NULL;
736	va_list args;	char c;
737	size_t size = 0;	va_list args;
738	va_start(args, format);	size_t size = 0;
739		va_start(args, format);
740	/* XXX requires C99 vsnprintf behavior */
741	size = vsnprintf(&c, 1, format, args) + 1;	/* XXX requires C99 vsnprintf behavior */
742	if (size == -1) {	size = vsnprintf(&c, 1, format, args) + 1;
743	printf("ERROR: vsnprintf behavior is not C99\n");	if (size == -1) {
744	abort();	printf("ERROR: vsnprintf behavior is not C99\n");
745	}	abort();
746		}
747
748	va_end(args);	va_end(args);
749	va_start(args, format);	va_start(args, format);
750
751	buf = malloc(size);	buf = malloc(size);
752	if (buf == NULL)	if (buf == NULL)
753	return NULL;	return NULL;
754	vsnprintf(buf, size, format, args);	vsnprintf(buf, size, format, args);
755	va_end (args);	va_end(args);
756
757	return buf;	return buf;
758	}	}
759
760	static struct keywordTypes * getKeywordByType(enum lineType_e type,	static inline int
761	struct configFileInfo * cfi) {	kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive)
762	struct keywordTypes * kw;	{
763	for (kw = cfi->keywords; kw->key; kw++) {	int kwl = strlen(kw->key);
764	if (kw->type == type)	int ll = strlen(label);
765	return kw;	int rc;
766		int (*snc)(const char *s1, const char *s2, size_t n) =
767		case_insensitive ? strncasecmp : strncmp;
768		int (*sc)(const char *s1, const char *s2) =
769		case_insensitive ? strcasecmp : strcmp;
770
771		rc = snc(kw->key, label, kwl);
772		if (rc)
773		return rc;
774
775		for (int i = kwl; i < ll; i++) {
776		if (isspace(label[i]))
777		return 0;
778		if (kw->separatorChar && label[i] == kw->separatorChar)
779		return 0;
780		else if (kw->nextChar && label[i] == kw->nextChar)
781		return 0;
782		return sc(kw->key+kwl, label+kwl);
783	}	}
784	return NULL;	return 0;
785	}	}
786
787	static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) {	static enum lineType_e preferredLineType(enum lineType_e type,
788	struct keywordTypes *kt = getKeywordByType(type, cfi);	struct configFileInfo *cfi)
789	if (kt)	{
790	return kt->key;	if (isEfi && cfi == &grub2ConfigType) {
791	return "unknown";	switch (type) {
792		case LT_KERNEL:
793		return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI;
794		case LT_INITRD:
795		return isEfiOnly ? LT_INITRD : LT_INITRD_EFI;
796		default:
797		return type;
798		}
799		#if defined(__i386__) || defined(__x86_64__)
800		} else if (cfi == &grub2ConfigType) {
801		switch (type) {
802		case LT_KERNEL:
803		return LT_KERNEL_16;
804		case LT_INITRD:
805		return LT_INITRD_16;
806		default:
807		return type;
808		}
809		#endif
810		}
811		return type;
812	}	}
813
814	static char * getpathbyspec(char *device) {	static struct keywordTypes *getKeywordByType(enum lineType_e type,
815	if (!blkid)	struct configFileInfo *cfi)
816	blkid_get_cache(&blkid, NULL);	{
817		for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
818		if (kw->type == type)
819		return kw;
820		}
821		return NULL;
822		}
823
824	return blkid_get_devname(blkid, device, NULL);	static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi)
825		{
826		struct keywordTypes *kt = getKeywordByType(type, cfi);
827		if (kt)
828		return kt->key;
829		return "unknown";
830	}	}
831
832	static char * getuuidbydev(char *device) {	static char *getpathbyspec(char *device)
833	if (!blkid)	{
834	blkid_get_cache(&blkid, NULL);	if (!blkid)
835		blkid_get_cache(&blkid, NULL);
836
837	return blkid_get_tag_value(blkid, "UUID", device);	return blkid_get_devname(blkid, device, NULL);
838	}	}
839
840	static enum lineType_e getTypeByKeyword(char * keyword,	static char *getuuidbydev(char *device)
841	struct configFileInfo * cfi) {	{
842	struct keywordTypes * kw;	if (!blkid)
843	for (kw = cfi->keywords; kw->key; kw++) {	blkid_get_cache(&blkid, NULL);
	if (!strcmp(keyword, kw->key))
	return kw->type;
	}
	return LT_UNKNOWN;
	}
844
845	static struct singleLine * getLineByType(enum lineType_e type,	return blkid_get_tag_value(blkid, "UUID", device);
	struct singleLine * line) {
	dbgPrintf("getLineByType(%d): ", type);
	for (; line; line = line->next) {
	dbgPrintf("%d:%s ", line->type,
	line->numElements ? line->elements[0].item : "(empty)");
	if (line->type & type) break;
	}
	dbgPrintf(line ? "\n" : " (failed)\n");
	return line;
846	}	}
847
848	static int isBracketedTitle(struct singleLine * line) {	static enum lineType_e getTypeByKeyword(char *keyword,
849	if (line->numElements == 1 && *line->elements[0].item == '[') {	struct configFileInfo *cfi)
850	int len = strlen(line->elements[0].item);	{
851	if (*(line->elements[0].item + len - 1) == ']') {	for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) {
852	/* FIXME: this is a hack... */	if (!kwcmp(kw, keyword, cfi->caseInsensitive))
853	if (strcmp(line->elements[0].item, "[defaultboot]")) {	return kw->type;
854	return 1;	}
855	}	return LT_UNKNOWN;
	}
	}
	return 0;
856	}	}
857
858	static int isEntryStart(struct singleLine * line,	static struct singleLine *getLineByType(enum lineType_e type,
859	struct configFileInfo * cfi) {	struct singleLine *line)
860	return line->type == cfi->entryStart || line->type == LT_OTHER ||	{
861	(cfi->titleBracketed && isBracketedTitle(line));	dbgPrintf("getLineByType(%d): ", type);
862		for (; line; line = line->next) {
863		dbgPrintf("%d:%s ", line->type,
864		line->numElements ? line->elements[0].
865		item : "(empty)");
866		if (line->type & type)
867		break;
868		}
869		dbgPrintf(line ? "\n" : " (failed)\n");
870		return line;
871	}	}
872
873	/* extract the title from within brackets (for zipl) */	static int isBracketedTitle(struct singleLine *line)
874	static char * extractTitle(struct singleLine * line) {	{
875	/* bracketed title... let's extract it (leaks a byte) */	if (line->numElements == 1 && *line->elements[0].item == '[') {
876	char * title;	int len = strlen(line->elements[0].item);
877	title = strdup(line->elements[0].item);	if (*(line->elements[0].item + len - 1) == ']') {
878	title++;	/* FIXME: this is a hack... */
879	*(title + strlen(title) - 1) = '\0';	if (strcmp(line->elements[0].item, "[defaultboot]")) {
880	return title;	return 1;
881	}	}
882		}
883	static int readFile(int fd, char ** bufPtr) {	}
884	int alloced = 0, size = 0, i = 0;	return 0;
885	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;
	}
	buf = realloc(buf, size + 2);
	if (size == 0)
	buf[size++] = '\n';
	else
	if (buf[size - 1] != '\n')
	buf[size++] = '\n';
	buf[size] = '\0';
886
887	*bufPtr = buf;	static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi)
888		{
889		return line->type == cfi->entryStart || line->type == LT_OTHER ||
890		(cfi->titleBracketed && isBracketedTitle(line));
891		}
892
893	return 0;	/* extract the title from within brackets (for zipl) */
894		static char *extractTitle(struct grubConfig *cfg, struct singleLine *line)
895		{
896		/* bracketed title... let's extract it */
897		char *title = NULL;
898		if (line->type == LT_TITLE) {
899		char *tmp = line->elements[cfg->cfi->titlePosition].item;
900		if (cfg->cfi->titleBracketed) {
901		tmp++;
902		title = strdup(tmp);
903		*(title + strlen(title) - 1) = '\0';
904		} else {
905		title = strdup(tmp);
906		}
907		} else if (line->type == LT_MENUENTRY)
908		title = strdup(line->elements[1].item);
909		else
910		return NULL;
911		return title;
912	}	}
913
914	static void lineInit(struct singleLine * line) {	static int readFile(int fd, char **bufPtr)
915	line->indent = NULL;	{
916	line->elements = NULL;	int alloced = 0, size = 0, i = 0;
917	line->numElements = 0;	char *buf = NULL;
	line->next = NULL;
	}
	struct singleLine * lineDup(struct singleLine * line) {
	int i;
	struct singleLine * newLine = malloc(sizeof(*newLine));
	newLine->indent = strdup(line->indent);
	newLine->next = NULL;
	newLine->type = line->type;
	newLine->numElements = line->numElements;
	newLine->elements = malloc(sizeof(*newLine->elements) *
	newLine->numElements);
	for (i = 0; i < newLine->numElements; i++) {
	newLine->elements[i].indent = strdup(line->elements[i].indent);
	newLine->elements[i].item = strdup(line->elements[i].item);
	}
918
919	return newLine;	do {
920	}	size += i;
921		if ((size + 1024) > alloced) {
922		alloced += 4096;
923		buf = realloc(buf, alloced + 1);
924		}
925		} while ((i = read(fd, buf + size, 1024)) > 0);
926
927		if (i < 0) {
928		fprintf(stderr, _("error reading input: %s\n"),
929		strerror(errno));
930		free(buf);
931		return 1;
932		}
933
934	static void lineFree(struct singleLine * line) {	buf = realloc(buf, size + 2);
935	int i;	if (size == 0)
936		buf[size++] = '\n';
937		else if (buf[size - 1] != '\n')
938		buf[size++] = '\n';
939		buf[size] = '\0';
940
941	if (line->indent) free(line->indent);	*bufPtr = buf;
942
943	for (i = 0; i < line->numElements; i++) {	return 0;
944	free(line->elements[i].item);	}
	free(line->elements[i].indent);
	}
945
946	if (line->elements) free(line->elements);	static void lineInit(struct singleLine *line)
947	lineInit(line);	{
948		line->type = LT_UNIDENTIFIED;
949		line->indent = NULL;
950		line->elements = NULL;
951		line->numElements = 0;
952		line->next = NULL;
953	}	}
954
955	static int lineWrite(FILE * out, struct singleLine * line,	struct singleLine *lineDup(struct singleLine *line)
956	struct configFileInfo * cfi) {	{
957	int i;	struct singleLine *newLine = malloc(sizeof(*newLine));
958
959	if (fprintf(out, "%s", line->indent) == -1) return -1;	newLine->indent = strdup(line->indent);
960		newLine->next = NULL;
961		newLine->type = line->type;
962		newLine->numElements = line->numElements;
963		newLine->elements = malloc(sizeof(*newLine->elements) *
964		newLine->numElements);
965
966	for (i = 0; i < line->numElements; i++) {	for (int i = 0; i < newLine->numElements; i++) {
967	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)	newLine->elements[i].indent = strdup(line->elements[i].indent);
968	if (fputc('"', out) == EOF) return -1;	newLine->elements[i].item = strdup(line->elements[i].item);
969		}
970
971	if (fprintf(out, "%s", line->elements[i].item) == -1) return -1;	return newLine;
972	if (i < line->numElements - 1)	}
	if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1;
	}
973
974	if (line->type == LT_KERNELARGS && cfi->argsInQuotes)	static void lineFree(struct singleLine *line)
975	if (fputc('"', out) == EOF) return -1;	{
976		if (line->indent)
977		free(line->indent);
978
979	if (fprintf(out, "\n") == -1) return -1;	for (int i = 0; i < line->numElements; i++) {
980		free(line->elements[i].item);
981		free(line->elements[i].indent);
982		}
983
984	return 0;	if (line->elements)
985		free(line->elements);
986		lineInit(line);
987	}	}
988
989	/* we've guaranteed that the buffer ends w/ \n\0 */	static int lineWrite(FILE * out, struct singleLine *line,
990	static int getNextLine(char ** bufPtr, struct singleLine * line,	struct configFileInfo *cfi)
991	struct configFileInfo * cfi) {	{
992	char * end;	if (fprintf(out, "%s", line->indent) == -1)
993	char * start = *bufPtr;	return -1;
	char * chptr;
	int elementsAlloced = 0;
	struct lineElement * element;
	int first = 1;
994
995	lineFree(line);	for (int i = 0; i < line->numElements; i++) {
996		/* Need to handle this, because we strip the quotes from
997		* menuentry when read it. */
998		if (line->type == LT_MENUENTRY && i == 1) {
999		if (!isquote(*line->elements[i].item)) {
1000		int substring = 0;
1001		/* If the line contains nested quotes, we did
1002		* not strip the "interna" quotes and we must
1003		* use the right quotes again when writing
1004		* the updated file. */
1005		for (int j = i; j < line->numElements; j++) {
1006		if (strchr(line->elements[i].item, '\'')
1007		!= NULL) {
1008		substring = 1;
1009		fprintf(out, "\"%s\"",
1010		line->elements[i].item);
1011		break;
1012		}
1013		}
1014		if (!substring)
1015		fprintf(out, "\'%s\'",
1016		line->elements[i].item);
1017		} else {
1018		fprintf(out, "%s", line->elements[i].item);
1019		}
1020		fprintf(out, "%s", line->elements[i].indent);
1021
1022	end = strchr(start, '\n');	continue;
1023	*end = '\0';	}
	*bufPtr = end + 1;
1024
1025	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;	if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes)
1026		if (fputc('"', out) == EOF)
1027		return -1;
1028
1029		if (fprintf(out, "%s", line->elements[i].item) == -1)
1030		return -1;
1031		if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE)
1032		if (fprintf(out, "%s", line->elements[i].indent) == -1)
1033		return -1;
1034		}
1035
1036		if (line->type == LT_KERNELARGS && cfi->argsInQuotes)
1037		if (fputc('"', out) == EOF)
1038		return -1;
1039
1040	line->indent = strndup(start, chptr - start);	if (fprintf(out, "\n") == -1)
1041	start = chptr;	return -1;
1042
1043	while (start < end) {	return 0;
1044	/* we know !isspace(*start) */	}
1045
1046	if (elementsAlloced == line->numElements) {	/* we've guaranteed that the buffer ends w/ \n\0 */
1047	elementsAlloced += 5;	static int getNextLine(char **bufPtr, struct singleLine *line,
1048	line->elements = realloc(line->elements,	struct configFileInfo *cfi)
1049	sizeof(*line->elements) * elementsAlloced);	{
1050	}	char *end;
1051		char *start = *bufPtr;
1052		char *chptr;
1053		int elementsAlloced = 0;
1054		struct lineElement *element;
1055		int first = 1;
1056
1057	element = line->elements + line->numElements;	lineFree(line);
1058
1059	chptr = start;	end = strchr(start, '\n');
1060	while (*chptr && !isspace(*chptr)) {	*end = '\0';
1061	if (first && *chptr == '=') break;	*bufPtr = end + 1;
	chptr++;
	}
	element->item = strndup(start, chptr - start);
	start = chptr;
1062
1063	/* lilo actually accepts the pathological case of append = " foo " */	for (chptr = start; *chptr && isspace(*chptr); chptr++) ;
	if (*start == '=')
	chptr = start + 1;
	else
	chptr = start;
	do {
	for (; *chptr && isspace(*chptr); chptr++);
	if (*chptr == '=')
	chptr = chptr + 1;
	} while (isspace(*chptr));
1064
1065	element->indent = strndup(start, chptr - start);	line->indent = strndup(start, chptr - start);
1066	start = chptr;	start = chptr;
1067
1068	line->numElements++;	while (start < end) {
1069	first = 0;	/* we know !isspace(*start) */
	}
1070
1071	if (!line->numElements)	if (elementsAlloced == line->numElements) {
1072	line->type = LT_WHITESPACE;	elementsAlloced += 5;
1073	else {	line->elements = realloc(line->elements,
1074	line->type = getTypeByKeyword(line->elements[0].item, cfi);	sizeof(*line->elements) *
1075	if (line->type == LT_UNKNOWN) {	elementsAlloced);
1076	/* zipl does [title] instead of something reasonable like all	}
	* the other boot loaders.  kind of ugly */
	if (cfi->titleBracketed && isBracketedTitle(line)) {
	line->type = LT_TITLE;
	}
	/* this is awkward, but we need to be able to handle keywords
	that begin with a # (specifically for #boot in grub.conf),
	but still make comments lines with no elements (everything
	stored in the indent */
	if (*line->elements[0].item == '#') {
	char * fullLine;
	int len;
	int i;
	len = strlen(line->indent);
	for (i = 0; i < line->numElements; i++)
	len += strlen(line->elements[i].item) +
	strlen(line->elements[i].indent);
1077
1078	fullLine = malloc(len + 1);	element = line->elements + line->numElements;
	strcpy(fullLine, line->indent);
	free(line->indent);
	line->indent = fullLine;
1079
1080	for (i = 0; i < line->numElements; i++) {	chptr = start;
1081	strcat(fullLine, line->elements[i].item);	while (*chptr && !isspace(*chptr)) {
1082	strcat(fullLine, line->elements[i].indent);	if (first && *chptr == '=')
1083	free(line->elements[i].item);	break;
1084	free(line->elements[i].indent);	chptr++;
1085	}	}
1086		if (line->type == LT_UNIDENTIFIED)
1087		line->type = getTypeByKeyword(start, cfi);
1088		element->item = strndup(start, chptr - start);
1089		start = chptr;
1090
1091		/* lilo actually accepts the pathological case of
1092		* append = " foo " */
1093		if (*start == '=')
1094		chptr = start + 1;
1095		else
1096		chptr = start;
1097
1098		do {
1099		for (; *chptr && isspace(*chptr); chptr++) ;
1100		if (*chptr == '=')
1101		chptr = chptr + 1;
1102		} while (isspace(*chptr));
1103
1104		element->indent = strndup(start, chptr - start);
1105		start = chptr;
1106
1107		line->numElements++;
1108		first = 0;
1109		}
1110
1111		if (!line->numElements)
1112	line->type = LT_WHITESPACE;	line->type = LT_WHITESPACE;
1113	line->numElements = 0;	else {
1114	}	line->type = getTypeByKeyword(line->elements[0].item, cfi);
1115	} else {	if (line->type == LT_UNKNOWN) {
1116	struct keywordTypes *kw;	/* zipl does [title] instead of something reasonable
1117		* like all the other boot loaders.  kind of ugly */
1118		if (cfi->titleBracketed && isBracketedTitle(line)) {
1119		line->type = LT_TITLE;
1120		}
1121
1122	kw = getKeywordByType(line->type, cfi);	/* this is awkward, but we need to be able to handle
1123		* keywords that begin with a # (specifically for
1124		* #boot in grub.conf), but still make comments lines
1125		* with no elements (everything stored in the indent
1126		*/
1127		if (*line->elements[0].item == '#') {
1128		char *fullLine;
1129		int len;
1130
1131		len = strlen(line->indent);
1132		for (int i = 0; i < line->numElements; i++)
1133		len += strlen(line->elements[i].item) +
1134		strlen(line->elements[i].indent);
1135
1136		fullLine = malloc(len + 1);
1137		strcpy(fullLine, line->indent);
1138		free(line->indent);
1139		line->indent = fullLine;
1140
1141		for (int i = 0; i < line->numElements; i++) {
1142		strcat(fullLine,
1143		line->elements[i].item);
1144		strcat(fullLine,
1145		line->elements[i].indent);
1146		free(line->elements[i].item);
1147		free(line->elements[i].indent);
1148		}
1149
1150	/* space isn't the only separator, we need to split	line->type = LT_WHITESPACE;
1151	* elements up more	line->numElements = 0;
	*/
	if (!isspace(kw->separatorChar)) {
	int i;
	char indent[2] = "";
	indent[0] = kw->separatorChar;
	for (i = 1; i < line->numElements; i++) {
	char *p;
	int j;
	int numNewElements;
	numNewElements = 0;
	p = line->elements[i].item;
	while (*p != '\0') {
	if (*p == kw->separatorChar)
	numNewElements++;
	p++;
	}
	if (line->numElements + numNewElements >= elementsAlloced) {
	elementsAlloced += numNewElements + 5;
	line->elements = realloc(line->elements,
	sizeof(*line->elements) * elementsAlloced);
	}
	for (j = line->numElements; j > i; j--) {
	line->elements[j + numNewElements] = line->elements[j];
1152	}	}
1153	line->numElements += numNewElements;	} else if (line->type == LT_INITRD) {
1154		struct keywordTypes *kw;
1155
1156	p = line->elements[i].item;	kw = getKeywordByType(line->type, cfi);
	while (*p != '\0') {
1157
1158	while (*p != kw->separatorChar && *p != '\0') p++;	/* space isn't the only separator, we need to split
1159	if (*p == '\0') {	* elements up more
1160	break;	*/
1161	}	if (!isspace(kw->separatorChar)) {
1162		char indent[2] = "";
1163		indent[0] = kw->separatorChar;
1164		for (int i = 1; i < line->numElements; i++) {
1165		char *p;
1166		int numNewElements;
1167
1168		numNewElements = 0;
1169		p = line->elements[i].item;
1170		while (*p != '\0') {
1171		if (*p == kw->separatorChar)
1172		numNewElements++;
1173		p++;
1174		}
1175		if (line->numElements +
1176		numNewElements >= elementsAlloced) {
1177		elementsAlloced +=
1178		numNewElements + 5;
1179		line->elements =
1180		realloc(line->elements,
1181		sizeof(*line->
1182		elements) *
1183		elementsAlloced);
1184		}
1185
1186	free(line->elements[i].indent);	for (int j = line->numElements; j > i;
1187	line->elements[i].indent = strdup(indent);	j--) {
1188	*p++ = '\0';	line->elements[j +
1189	i++;	numNewElements] =
1190	line->elements[i].item = strdup(p);	line->elements[j];
1191	line->elements[i].indent = strdup("");	}
1192	p = line->elements[i].item;	line->numElements += numNewElements;
1193
1194		p = line->elements[i].item;
1195		while (*p != '\0') {
1196
1197		while (*p != kw->separatorChar
1198		&& *p != '\0')
1199		p++;
1200		if (*p == '\0') {
1201		break;
1202		}
1203
1204		line->elements[i + 1].indent =
1205		line->elements[i].indent;
1206		line->elements[i].indent =
1207		strdup(indent);
1208		*p++ = '\0';
1209		i++;
1210		line->elements[i].item =
1211		strdup(p);
1212		}
1213		}
1214		}
1215		} else if (line->type == LT_SET_VARIABLE) {
1216		/* and if it's a "set blah=" we need to split it
1217		* yet a third way to avoid rhbz# XXX FIXME :/
1218		*/
1219		char *eq;
1220		int l;
1221		int numElements = line->numElements;
1222		struct lineElement *newElements;
1223		eq = strchr(line->elements[1].item, '=');
1224		if (!eq)
1225		return 0;
1226		l = eq - line->elements[1].item;
1227		if (eq[1] != 0)
1228		numElements++;
1229		newElements = calloc(numElements,sizeof (*newElements));
1230		memcpy(&newElements[0], &line->elements[0],
1231		sizeof (newElements[0]));
1232		newElements[1].item =
1233		strndup(line->elements[1].item, l);
1234		newElements[1].indent = "=";
1235		*(eq++) = '\0';
1236		newElements[2].item = strdup(eq);
1237		free(line->elements[1].item);
1238		if (line->elements[1].indent)
1239		newElements[2].indent = line->elements[1].indent;
1240		for (int i = 2; i < line->numElements; i++) {
1241		newElements[i+1].item = line->elements[i].item;
1242		newElements[i+1].indent =
1243		line->elements[i].indent;
1244	}	}
1245	}	free(line->elements);
1246		line->elements = newElements;
1247		line->numElements = numElements;
1248	}	}
1249	}	}
	}
1250
1251	return 0;	return 0;
1252	}	}
1253
1254	static struct grubConfig * readConfig(const char * inName,	static int isnumber(const char *s)
1255	struct configFileInfo * cfi) {	{
1256	int in;	int i;
1257	char * incoming = NULL, * head;	for (i = 0; s[i] != '\0'; i++)
1258	int rc;	if (s[i] < '0' || s[i] > '9')
1259	int sawEntry = 0;	return 0;
1260	int movedLine = 0;	return i;
1261	struct grubConfig * cfg;	}
	struct singleLine * last = NULL, * line, * defaultLine = NULL;
	char * end;
	struct singleEntry * entry = NULL;
	int i, len;
	char * buf;
	if (!strcmp(inName, "-")) {
	in = 0;
	} else {
	if ((in = open(inName, O_RDONLY)) < 0) {
	fprintf(stderr, _("error opening %s for read: %s\n"),
	inName, strerror(errno));
	return NULL;
	}
	}
1262
1263	rc = readFile(in, &incoming);	static struct grubConfig *readConfig(const char *inName,
1264	close(in);	struct configFileInfo *cfi)
1265	if (rc) return NULL;	{
1266		int in;
1267	head = incoming;	char *incoming = NULL, *head;
1268	cfg = malloc(sizeof(*cfg));	int rc;
1269	cfg->primaryIndent = strdup("");	int sawEntry = 0;
1270	cfg->secondaryIndent = strdup("\t");	int movedLine = 0;
1271	cfg->flags = GRUB_CONFIG_NO_DEFAULT;	struct grubConfig *cfg;
1272	cfg->cfi = cfi;	struct singleLine *last = NULL, *line, *defaultLine = NULL;
1273	cfg->theLines = NULL;	char *end;
1274	cfg->entries = NULL;	struct singleEntry *entry = NULL;
1275	cfg->fallbackImage = 0;	int len;
1276		char *buf;
1277	/* copy everything we have */
1278	while (*head) {	if (inName == NULL) {
1279	line = malloc(sizeof(*line));	printf("Could not find bootloader configuration\n");
1280	lineInit(line);	exit(1);
1281		} else if (!strcmp(inName, "-")) {
1282		in = 0;
1283		} else {
1284		if ((in = open(inName, O_RDONLY)) < 0) {
1285		fprintf(stderr, _("error opening %s for read: %s\n"),
1286		inName, strerror(errno));
1287		return NULL;
1288		}
1289		}
1290
1291	if (getNextLine(&head, line, cfi)) {	rc = readFile(in, &incoming);
1292	free(line);	close(in);
1293	/* XXX memory leak of everything in cfg */	if (rc)
1294	return NULL;	return NULL;
1295	}
1296		head = incoming;
1297	if (!sawEntry && line->numElements) {	cfg = malloc(sizeof(*cfg));
1298	free(cfg->primaryIndent);	cfg->primaryIndent = strdup("");
1299	cfg->primaryIndent = strdup(line->indent);	cfg->secondaryIndent = strdup("\t");
1300	} else if (line->numElements) {	cfg->flags = GRUB_CONFIG_NO_DEFAULT;
1301	free(cfg->secondaryIndent);	cfg->cfi = cfi;
1302	cfg->secondaryIndent = strdup(line->indent);	cfg->theLines = NULL;
1303	}	cfg->entries = NULL;
1304		cfg->fallbackImage = 0;
1305	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {	cfg->isModified = 0;
1306	sawEntry = 1;
1307	if (!entry) {	/* copy everything we have */
1308	cfg->entries = malloc(sizeof(*entry));	while (*head) {
1309	entry = cfg->entries;	line = malloc(sizeof(*line));
1310	} else {	lineInit(line);
1311	entry->next = malloc(sizeof(*entry));
1312	entry = entry->next;	if (getNextLine(&head, line, cfi)) {
1313	}	free(line);
1314		/* XXX memory leak of everything in cfg */
1315		return NULL;
1316		}
1317
1318	entry->skip = 0;	if (!sawEntry && line->numElements) {
1319	entry->multiboot = 0;	free(cfg->primaryIndent);
1320	entry->lines = NULL;	cfg->primaryIndent = strdup(line->indent);
1321	entry->next = NULL;	} else if (line->numElements) {
1322	}	free(cfg->secondaryIndent);
1323		cfg->secondaryIndent = strdup(line->indent);
1324	if (line->type == LT_SET_VARIABLE) {	}
	int i;
	dbgPrintf("found 'set' command (%d elements): ", line->numElements);
	dbgPrintf("%s", line->indent);
	for (i = 0; i < line->numElements; i++)
	dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item);
	dbgPrintf("\n");
	struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi);
	if (kwType && line->numElements == 3 &&
	!strcmp(line->elements[1].item, kwType->key)) {
	dbgPrintf("Line sets default config\n");
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	}
	} else if (line->type == LT_DEFAULT && line->numElements == 2) {
	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
	defaultLine = line;
	} else if (line->type == LT_KERNEL) {
	/* if by some freak chance this is multiboot and the "module"
	* lines came earlier in the template, make sure to use LT_HYPER
	* instead of LT_KERNEL now
	*/
	if (entry->multiboot)
	line->type = LT_HYPER;
	} else if (line->type == LT_MBMODULE) {
	/* go back and fix the LT_KERNEL line to indicate LT_HYPER
	* instead, now that we know this is a multiboot entry.
	* This only applies to grub, but that's the only place we
	* should find LT_MBMODULE lines anyway.
	*/
	struct singleLine * l;
	for (l = entry->lines; l; l = l->next) {
	if (l->type == LT_HYPER)
	break;
	else if (l->type == LT_KERNEL) {
	l->type = LT_HYPER;
	break;
	}
	}
	entry->multiboot = 1;
	} else if (line->type == LT_HYPER) {
	entry->multiboot = 1;
	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
	cfg->fallbackImage = strtol(line->elements[1].item, &end, 10);
	if (*end) cfg->fallbackImage = -1;
	} else if (line->type == LT_TITLE && line->numElements > 1) {
	/* make the title a single argument (undoing our parsing) */
	len = 0;
	for (i = 1; i < line->numElements; i++) {
	len += strlen(line->elements[i].item);
	len += strlen(line->elements[i].indent);
	}
	buf = malloc(len + 1);
	*buf = '\0';
1325
1326	for (i = 1; i < line->numElements; i++) {	if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) {
1327	strcat(buf, line->elements[i].item);	sawEntry = 1;
1328	free(line->elements[i].item);	if (!entry) {
1329		cfg->entries = malloc(sizeof(*entry));
1330		entry = cfg->entries;
1331		} else {
1332		entry->next = malloc(sizeof(*entry));
1333		entry = entry->next;
1334		}
1335
1336	if ((i + 1) != line->numElements) {	entry->skip = 0;
1337	strcat(buf, line->elements[i].indent);	entry->multiboot = 0;
1338	free(line->elements[i].indent);	entry->lines = NULL;
1339	}	entry->next = NULL;
1340	}	}
	line->elements[1].indent =
	line->elements[line->numElements - 1].indent;
	line->elements[1].item = buf;
	line->numElements = 2;
	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
	/* Strip off any " which may be present; they'll be put back
	on write. This is one of the few (the only?) places that grubby
	canonicalizes the output */
	if (line->numElements >= 2) {
	int last, len;
	if (*line->elements[1].item == '"')
	memmove(line->elements[1].item, line->elements[1].item + 1,
	strlen(line->elements[1].item + 1) + 1);
	last = line->numElements - 1;
	len = strlen(line->elements[last].item) - 1;
	if (line->elements[last].item[len] == '"')
	line->elements[last].item[len] = '\0';
	}
	}
	/* If we find a generic config option which should live at the
	top of the file, move it there. Old versions of grubby were
	probably responsible for putting new images in the wrong
	place in front of it anyway. */
	if (sawEntry && line->type == LT_GENERIC) {
	struct singleLine **l = &cfg->theLines;
	struct singleLine **last_nonws = &cfg->theLines;
	while (*l) {
	if ((*l)->type != LT_WHITESPACE)
	last_nonws = &((*l)->next);
	l = &((*l)->next);
	}
	line->next = *last_nonws;
	*last_nonws = line;
	movedLine = 1;
	continue; /* without setting 'last' */
	}
	/* If a second line of whitespace happens after a generic option
	which was moved, drop it. */
	if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) {
	lineFree(line);
	free(line);
	movedLine = 0;
	continue;
	}
	movedLine = 0;
1341
1342	if (sawEntry) {	if (line->type == LT_SET_VARIABLE) {
1343	if (!entry->lines)	dbgPrintf("found 'set' command (%d elements): ",
1344	entry->lines = line;	line->numElements);
1345	else	dbgPrintf("%s", line->indent);
1346	last->next = line;	for (int i = 0; i < line->numElements; i++)
1347	dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry);	dbgPrintf("\"%s\"%s", line->elements[i].item,
1348		line->elements[i].indent);
1349	/* we could have seen this outside of an entry... if so, we	dbgPrintf("\n");
1350	* ignore it like any other line we don't grok */	struct keywordTypes *kwType =
1351	if (line->type == LT_ENTRY_END && sawEntry)	getKeywordByType(LT_DEFAULT, cfi);
1352	sawEntry = 0;	if (kwType && line->numElements == 3
1353	} else {	&& !strcmp(line->elements[1].item, kwType->key)
1354	if (!cfg->theLines)	&& !is_special_grub2_variable(
1355	cfg->theLines = line;	line->elements[2].item)) {
1356	else	dbgPrintf("Line sets default config\n");
1357	last->next = line;	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1358	dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi));	defaultLine = line;
1359	}	}
1360		} else if (iskernel(line->type)) {
1361		/* if by some freak chance this is multiboot and the
1362		* "module" lines came earlier in the template, make
1363		* sure to use LT_HYPER instead of LT_KERNEL now
1364		*/
1365		if (entry && entry->multiboot)
1366		line->type = LT_HYPER;
1367
1368	last = line;	} else if (line->type == LT_MBMODULE) {
1369	}	/* go back and fix the LT_KERNEL line to indicate
1370		* LT_HYPER instead, now that we know this is a
1371		* multiboot entry.  This only applies to grub, but
1372		* that's the only place we should find LT_MBMODULE
1373		* lines anyway.
1374		*/
1375		for (struct singleLine * l = entry->lines; l;
1376		l = l->next) {
1377		if (l->type == LT_HYPER)
1378		break;
1379		else if (iskernel(l->type)) {
1380		l->type = LT_HYPER;
1381		break;
1382		}
1383		}
1384		entry->multiboot = 1;
1385
1386	free(incoming);	} else if (line->type == LT_HYPER) {
1387		entry->multiboot = 1;
1388
1389	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");	} else if (line->type == LT_FALLBACK && line->numElements == 2) {
1390	if (defaultLine) {	cfg->fallbackImage =
1391	if (defaultLine->numElements > 2 &&	strtol(line->elements[1].item, &end, 10);
1392	cfi->defaultSupportSaved &&	if (*end)
1393	!strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) {	cfg->fallbackImage = -1;
1394	cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1395	} else if (cfi->defaultIsVariable) {	} else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted)
1396	char *value = defaultLine->elements[2].item;	|| (line->type == LT_TITLE
1397	while (*value && (*value == '"' || *value == '\'' ||	&& line->numElements > 1)) {
1398	*value == ' ' || *value == '\t'))	/* make the title/default a single argument (undoing
1399	value++;	* our parsing) */
1400	cfg->defaultImage = strtol(value, &end, 10);	len = 0;
1401	while (*end && (*end == '"' || *end == '\'' ||	for (int i = 1; i < line->numElements; i++) {
1402	*end == ' ' || *end == '\t'))	len += strlen(line->elements[i].item);
1403	end++;	len += strlen(line->elements[i].indent);
1404	if (*end) cfg->defaultImage = -1;	}
1405	} else if (cfi->defaultSupportSaved &&	buf = malloc(len + 1);
1406	!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) {
	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;
	}
1407
1408	if (entry){	for (int i = 1; i < line->numElements; i++) {
1409	cfg->defaultImage = i;	strcat(buf, line->elements[i].item);
1410	}else{	free(line->elements[i].item);
1411	cfg->defaultImage = -1;
1412	}	if ((i + 1) != line->numElements) {
1413	}	strcat(buf, line->elements[i].indent);
1414	} else {	free(line->elements[i].indent);
1415	cfg->defaultImage = 0;	}
1416	}	}
1417
1418	return cfg;	line->elements[1].indent =
1419	}	line->elements[line->numElements - 1].indent;
1420		line->elements[1].item = buf;
1421		line->numElements = 2;
1422		} else if (line->type == LT_MENUENTRY && line->numElements > 3) {
1423		/* let --remove-kernel="TITLE=what" work */
1424		len = 0;
1425		char *extras;
1426		char *title;
1427		/* initially unseen value */
1428		char quote_char = '\0';
1429
1430		for (int i = 1; i < line->numElements; i++) {
1431		len += strlen(line->elements[i].item);
1432		len += strlen(line->elements[i].indent);
1433		}
1434		buf = malloc(len + 1);
1435		*buf = '\0';
1436
1437	static void writeDefault(FILE * out, char * indent,	/* allocate mem for extra flags. */
1438	char * separator, struct grubConfig * cfg) {	extras = malloc(len + 1);
1439	struct singleEntry * entry;	*extras = '\0';
1440	struct singleLine * line;
1441	int i;	/* get title. */
1442		for (int i = 0; i < line->numElements; i++) {
1443	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return;	if (!strcmp
1444		(line->elements[i].item, "menuentry"))
1445	if (cfg->defaultImage == DEFAULT_SAVED)	continue;
1446	fprintf(out, "%sdefault%ssaved\n", indent, separator);	if (isquote(*line->elements[i].item)
1447	else if (cfg->defaultImage == DEFAULT_SAVED_GRUB2)	&& quote_char == '\0') {
1448	fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);	/* ensure we properly pair off quotes */
1449	else if (cfg->defaultImage > -1) {	quote_char = *line->elements[i].item;
1450	if (cfg->cfi->defaultIsIndex) {	title = line->elements[i].item + 1;
1451	if (cfg->cfi->defaultIsVariable) {	} else {
1452	fprintf(out, "%sset default=\"%d\"\n", indent,	title = line->elements[i].item;
1453	cfg->defaultImage);	}
	} else {
	fprintf(out, "%sdefault%s%d\n", indent, separator,
	cfg->defaultImage);
	}
	} else {
	int image = cfg->defaultImage;
1454
1455	entry = cfg->entries;	len = strlen(title);
1456	while (entry && entry->skip) entry = entry->next;	if (title[len - 1] == quote_char) {
1457		strncat(buf, title, len - 1);
1458		break;
1459		} else {
1460		strcat(buf, title);
1461		strcat(buf, line->elements[i].indent);
1462		}
1463		}
1464
1465	i = 0;	/* get extras */
1466	while (entry && i < image) {	int count = 0;
1467	entry = entry->next;	quote_char = '\0';
1468		for (int i = 0; i < line->numElements; i++) {
1469		if (count >= 2) {
1470		strcat(extras, line->elements[i].item);
1471		strcat(extras,
1472		line->elements[i].indent);
1473		}
1474
1475	while (entry && entry->skip) entry = entry->next;	if (!strcmp
1476	i++;	(line->elements[i].item, "menuentry"))
1477	}	continue;
1478
1479		/* count ' or ", there should be two in menuentry line. */
1480		if (isquote(*line->elements[i].item)
1481		&& quote_char == '\0') {
1482		/* ensure we properly pair off quotes */
1483		quote_char = *line->elements[i].item;
1484		count++;
1485		}
1486
1487	if (!entry) return;	len = strlen(line->elements[i].item);
1488
1489	line = getLineByType(LT_TITLE, entry->lines);	if (line->elements[i].item[len - 1] ==
1490		quote_char)
1491		count++;
1492
1493	if (line && line->numElements >= 2)	/* ok, we get the final ' or ", others are extras. */
1494	fprintf(out, "%sdefault%s%s\n", indent, separator,	}
1495	line->elements[1].item);	line->elements[1].indent =
1496	else if (line && (line->numElements == 1) &&	line->elements[line->numElements - 2].indent;
1497	cfg->cfi->titleBracketed) {	line->elements[1].item = buf;
1498	fprintf(out, "%sdefault%s%s\n", indent, separator,	line->elements[2].indent =
1499	extractTitle(line));	line->elements[line->numElements - 2].indent;
1500	}	line->elements[2].item = extras;
1501	}	line->numElements = 3;
1502	}	} else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) {
1503	}	/* Strip off any " which may be present; they'll be
1504		* put back on write. This is one of the few (the
1505		* only?) places that grubby canonicalizes the output
1506		*/
1507		if (line->numElements >= 2) {
1508		int last, len;
1509
1510	static int writeConfig(struct grubConfig * cfg, char * outName,	if (isquote(*line->elements[1].item))
1511	const char * prefix) {	memmove(line->elements[1].item,
1512	FILE * out;	line->elements[1].item + 1,
1513	struct singleLine * line;	strlen(line->elements[1].item +
1514	struct singleEntry * entry;	1) + 1);
1515	char * tmpOutName;
1516	int needs = MAIN_DEFAULT;	last = line->numElements - 1;
1517	struct stat sb;	len = strlen(line->elements[last].item) - 1;
1518	int i;	if (isquote(line->elements[last].item[len]))
1519		line->elements[last].item[len] = '\0';
1520	if (!strcmp(outName, "-")) {	}
1521	out = stdout;	}
	tmpOutName = NULL;
	} else {
	if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
	char * buf;
	int len = 256;
	int rc;
	/* most likely the symlink is relative, so change our
	directory to the dir of the symlink */
	rc = chdir(dirname(strdupa(outName)));
	do {
	buf = alloca(len + 1);
	rc = readlink(basename(outName), buf, len);
	if (rc == len) len += 256;
	} while (rc == len);
	if (rc < 0) {
	fprintf(stderr, _("grubby: error readlink link %s: %s\n"),
	outName, strerror(errno));
	return 1;
	}
	outName = buf;
	outName[rc] = '\0';
	}
	tmpOutName = alloca(strlen(outName) + 2);
	sprintf(tmpOutName, "%s-", outName);
	out = fopen(tmpOutName, "w");
	if (!out) {
	fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName,
	strerror(errno));
	return 1;
	}
	if (!stat(outName, &sb)) {
	if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
	fprintf(stderr, _("grubby: error setting perms on %s: %s\n"),
	tmpOutName, strerror(errno));
	fclose(out);
	unlink(tmpOutName);
	return 1;
	}
	}
	}
1522
1523	line = cfg->theLines;	if (line->type == LT_DEFAULT && line->numElements == 2) {
1524	struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);	cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT;
1525	while (line) {	defaultLine = line;
1526	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;
	}
	}
1527
1528	line = line->next;	/* If we find a generic config option which should live at the
1529	}	top of the file, move it there. Old versions of grubby were
1530		probably responsible for putting new images in the wrong
1531		place in front of it anyway. */
1532		if (sawEntry && line->type == LT_GENERIC) {
1533		struct singleLine **l = &cfg->theLines;
1534		struct singleLine **last_nonws = &cfg->theLines;
1535		while (*l) {
1536		if ((*l)->type != LT_WHITESPACE)
1537		last_nonws = &((*l)->next);
1538		l = &((*l)->next);
1539		}
1540		line->next = *last_nonws;
1541		*last_nonws = line;
1542		movedLine = 1;
1543		continue; /* without setting 'last' */
1544		}
1545
1546	if (needs & MAIN_DEFAULT) {	/* If a second line of whitespace happens after a generic
1547	writeDefault(out, cfg->primaryIndent, "=", cfg);	* option which was moved, drop it. */
1548	needs &= ~MAIN_DEFAULT;	if (movedLine && line->type == LT_WHITESPACE
1549	}	&& last->type == LT_WHITESPACE) {
1550		lineFree(line);
1551		free(line);
1552		movedLine = 0;
1553		continue;
1554		}
1555		movedLine = 0;
1556
1557	i = 0;	if (sawEntry) {
1558	while ((entry = findEntryByIndex(cfg, i++))) {	if (!entry->lines)
1559	if (entry->skip) continue;	entry->lines = line;
1560		else
1561		last->next = line;
1562		dbgPrintf("readConfig added %s to %p\n",
1563		getKeyByType(line->type, cfi), entry);
1564
1565	line = entry->lines;	/* we could have seen this outside of an entry... if
1566	while (line) {	* so, we ignore it like any other line we don't grok
1567	if (lineWrite(out, line, cfg->cfi) == -1) {	*/
1568	fprintf(stderr, _("grubby: error writing %s: %s\n"),	if (line->type == LT_ENTRY_END && sawEntry)
1569	tmpOutName, strerror(errno));	sawEntry = 0;
1570	fclose(out);	} else {
1571	unlink(tmpOutName);	if (!cfg->theLines)
1572	return 1;	cfg->theLines = line;
1573	}	else
1574	line = line->next;	last->next = line;
1575	}	dbgPrintf("readConfig added %s to cfg\n",
1576	}	getKeyByType(line->type, cfi));
1577		}
1578
1579	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;
1580	}	}
	}
	return 0;
	}
1581
1582	static int numEntries(struct grubConfig *cfg) {	free(incoming);
	int i = 0;
	struct singleEntry * entry;
	entry = cfg->entries;
	while (entry) {
	if (!entry->skip)
	i++;
	entry = entry->next;
	}
	return i;
	}
1583
1584	static char *findDiskForRoot()	dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset");
1585		if (defaultLine) {
1586		if (defaultLine->numElements > 2 &&
1587		cfi->defaultSupportSaved &&
1588		!strncmp(defaultLine->elements[2].item,
1589		"\"${saved_entry}\"", 16)) {
1590		cfg->cfi->defaultIsSaved = 1;
1591		cfg->defaultImage = DEFAULT_SAVED_GRUB2;
1592		if (cfg->cfi->getEnv) {
1593		char *defTitle =
1594		cfi->getEnv(cfg->cfi, "saved_entry");
1595		if (defTitle) {
1596		int index = 0;
1597		if (isnumber(defTitle)) {
1598		index = atoi(defTitle);
1599		entry =
1600		findEntryByIndex(cfg,
1601		index);
1602		} else {
1603		entry =
1604		findEntryByTitle(cfg,
1605		defTitle,
1606		&index);
1607		}
1608		if (entry)
1609		cfg->defaultImage = index;
1610		}
1611		}
1612		} else if (cfi->defaultIsVariable) {
1613		if (defaultLine->numElements == 2) {
1614		char *value = defaultLine->elements[1].item + 8;
1615		while (*value && (*value == '"' ||
1616		*value == '\'' ||
1617		*value == ' ' ||
1618		*value == '\t'))
1619		value++;
1620		cfg->defaultImage = strtol(value, &end, 10);
1621		while (*end && (*end == '"' || *end == '\'' ||
1622		*end == ' ' || *end == '\t'))
1623		end++;
1624		if (*end)
1625		cfg->defaultImage = NO_DEFAULT_ENTRY;
1626		} else if (defaultLine->numElements == 3) {
1627		char *value = defaultLine->elements[2].item;
1628		while (*value && (*value == '"' ||
1629		*value == '\'' ||
1630		*value == ' ' ||
1631		*value == '\t'))
1632		value++;
1633		cfg->defaultImage = strtol(value, &end, 10);
1634		while (*end && (*end == '"' || *end == '\'' ||
1635		*end == ' ' || *end == '\t'))
1636		end++;
1637		if (*end)
1638		cfg->defaultImage = NO_DEFAULT_ENTRY;
1639		}
1640		} else if (cfi->defaultSupportSaved &&
1641		!strncmp(defaultLine->elements[1].item, "saved",
1642		5)) {
1643		cfg->defaultImage = DEFAULT_SAVED;
1644		} else if (cfi->defaultIsIndex) {
1645		cfg->defaultImage =
1646		strtol(defaultLine->elements[1].item, &end, 10);
1647		if (*end)
1648		cfg->defaultImage = NO_DEFAULT_ENTRY;
1649		} else if (defaultLine->numElements >= 2) {
1650		int i = 0;
1651		while ((entry = findEntryByIndex(cfg, i))) {
1652		for (line = entry->lines; line;
1653		line = line->next)
1654		if (line->type == LT_TITLE)
1655		break;
1656
1657		if (!cfi->titleBracketed) {
1658		if (line && (line->numElements >= 2) &&
1659		!strcmp(defaultLine->elements[1].
1660		item,
1661		line->elements[1].item))
1662		break;
1663		} else if (line) {
1664		if (!strcmp
1665		(defaultLine->elements[1].item,
1666		extractTitle(cfg, line)))
1667		break;
1668		}
1669		i++;
1670		entry = NULL;
1671		}
1672
1673		if (entry) {
1674		cfg->defaultImage = i;
1675		} else {
1676		cfg->defaultImage = NO_DEFAULT_ENTRY;
1677		}
1678		}
1679		} else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) {
1680		char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry");
1681		if (defTitle) {
1682		int index = 0;
1683		if (isnumber(defTitle)) {
1684		index = atoi(defTitle);
1685		entry = findEntryByIndex(cfg, index);
1686		} else {
1687		entry = findEntryByTitle(cfg, defTitle, &index);
1688		}
1689		if (entry)
1690		cfg->defaultImage = index;
1691		}
1692		} else {
1693		cfg->defaultImage = FIRST_ENTRY_INDEX;
1694		}
1695
1696		return cfg;
1697		}
1698
1699		static void writeDefault(FILE * out, char *indent,
1700		char *separator, struct grubConfig *cfg)
1701	{	{
1702	int fd;	struct singleEntry *entry;
1703	char buf[65536];	struct singleLine *line;
1704	char *devname;	int i;
1705	char *chptr;
1706	int rc;	if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT)
1707		return;
1708
1709		if (cfg->defaultImage == DEFAULT_SAVED)
1710		fprintf(out, "%sdefault%ssaved\n", indent, separator);
1711		else if (cfg->cfi->defaultIsSaved) {
1712		fprintf(out, "%sset default=\"${saved_entry}\"\n", indent);
1713		if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) {
1714		char *title;
1715		entry = findEntryByIndex(cfg, cfg->defaultImage);
1716		line = getLineByType(LT_MENUENTRY, entry->lines);
1717		if (!line)
1718		line = getLineByType(LT_TITLE, entry->lines);
1719		if (line) {
1720		title = extractTitle(cfg, line);
1721		if (title)
1722		cfg->cfi->setEnv(cfg->cfi,
1723		"saved_entry", title);
1724		}
1725		}
1726		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
1727		if (cfg->cfi->defaultIsIndex) {
1728		if (cfg->cfi->defaultIsVariable) {
1729		fprintf(out, "%sset default=\"%d\"\n", indent,
1730		cfg->defaultImage);
1731		} else {
1732		fprintf(out, "%sdefault%s%d\n", indent,
1733		separator, cfg->defaultImage);
1734		}
1735		} else {
1736		int image = cfg->defaultImage;
1737
1738	if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {	entry = cfg->entries;
1739	fprintf(stderr, "grubby: failed to open %s: %s\n",	while (entry && entry->skip)
1740	_PATH_MOUNTED, strerror(errno));	entry = entry->next;
1741	return NULL;
1742	}	i = 0;
1743		while (entry && i < image) {
1744		entry = entry->next;
1745
1746	rc = read(fd, buf, sizeof(buf) - 1);	while (entry && entry->skip)
1747	if (rc <= 0) {	entry = entry->next;
1748	fprintf(stderr, "grubby: failed to read %s: %s\n",	i++;
1749	_PATH_MOUNTED, strerror(errno));	}
1750	close(fd);
1751	return NULL;	if (!entry)
1752	}	return;
	close(fd);
	buf[rc] = '\0';
	chptr = buf;
	while (chptr && chptr != buf+rc) {
	devname = chptr;
	/*
	* The first column of a mtab entry is the device, but if the entry is a
	* special device it won't start with /, so move on to the next line.
	*/
	if (*devname != '/') {
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	continue;
	}
	/* Seek to the next space */
	chptr = strchr(chptr, ' ');
	if (!chptr) {
	fprintf(stderr, "grubby: error parsing %s: %s\n",
	_PATH_MOUNTED, strerror(errno));
	return NULL;
	}
	/*
	* The second column of a mtab entry is the mount point, we are looking
	* for '/' obviously.
	*/
	if (*(++chptr) == '/' && *(++chptr) == ' ') {
	/*
	* Move back 2, which is the first space after the device name, set
	* it to \0 so strdup will just get the devicename.
	*/
	chptr -= 2;
	*chptr = '\0';
	return strdup(devname);
	}
	/* Next line */
	chptr = strchr(chptr, '\n');
	if (chptr)
	chptr++;
	}
1753
1754	return NULL;	line = getLineByType(LT_TITLE, entry->lines);
1755
1756		if (line && line->numElements >= 2)
1757		fprintf(out, "%sdefault%s%s\n", indent,
1758		separator, line->elements[1].item);
1759		else if (line && (line->numElements == 1)
1760		&& cfg->cfi->titleBracketed) {
1761		char *title = extractTitle(cfg, line);
1762		if (title) {
1763		fprintf(out, "%sdefault%s%s\n", indent,
1764		separator, title);
1765		free(title);
1766		}
1767		}
1768		}
1769		}
1770	}	}
1771
1772	void printEntry(struct singleEntry * entry) {	static int writeConfig(struct grubConfig *cfg, char *outName,
1773	int i;	const char *prefix)
1774	struct singleLine * line;	{
1775		FILE *out;
1776		struct singleLine *line;
1777		struct singleEntry *entry;
1778		char *tmpOutName;
1779		int needs = MAIN_DEFAULT;
1780		struct stat sb;
1781		int i;
1782
1783		if (!strcmp(outName, "-")) {
1784		out = stdout;
1785		tmpOutName = NULL;
1786		} else {
1787		if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) {
1788		char *buf;
1789		int len = 256;
1790		int rc;
1791
1792		/* most likely the symlink is relative, so change our
1793		directory to the dir of the symlink */
1794		char *dir = strdupa(outName);
1795		rc = chdir(dirname(dir));
1796		do {
1797		buf = alloca(len + 1);
1798		rc = readlink(basename(outName), buf, len);
1799		if (rc == len)
1800		len += 256;
1801		} while (rc == len);
1802
1803		if (rc < 0) {
1804		fprintf(stderr,
1805		_
1806		("grubby: error readlink link %s: %s\n"),
1807		outName, strerror(errno));
1808		return 1;
1809		}
1810
1811		outName = buf;
1812		outName[rc] = '\0';
1813		}
1814
1815	for (line = entry->lines; line; line = line->next) {	tmpOutName = alloca(strlen(outName) + 2);
1816	fprintf(stderr, "DBG: %s", line->indent);	sprintf(tmpOutName, "%s-", outName);
1817	for (i = 0; i < line->numElements; i++) {	out = fopen(tmpOutName, "w");
1818	fprintf(stderr, "%s%s",	if (!out) {
1819	line->elements[i].item, line->elements[i].indent);	fprintf(stderr, _("grubby: error creating %s: %s\n"),
1820		tmpOutName, strerror(errno));
1821		return 1;
1822		}
1823
1824		if (!stat(outName, &sb)) {
1825		if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) {
1826		fprintf(stderr,
1827		_
1828		("grubby: error setting perms on %s: %s\n"),
1829		tmpOutName, strerror(errno));
1830		fclose(out);
1831		unlink(tmpOutName);
1832		return 1;
1833		}
1834		}
1835		}
1836
1837		line = cfg->theLines;
1838		struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi);
1839		while (line) {
1840		if (line->type == LT_SET_VARIABLE && defaultKw &&
1841		line->numElements == 3 &&
1842		!strcmp(line->elements[1].item, defaultKw->key) &&
1843		!is_special_grub2_variable(line->elements[2].item)) {
1844		writeDefault(out, line->indent,
1845		line->elements[0].indent, cfg);
1846		needs &= ~MAIN_DEFAULT;
1847		} else if (line->type == LT_DEFAULT) {
1848		writeDefault(out, line->indent,
1849		line->elements[0].indent, cfg);
1850		needs &= ~MAIN_DEFAULT;
1851		} else if (line->type == LT_FALLBACK) {
1852		if (cfg->fallbackImage > -1)
1853		fprintf(out, "%s%s%s%d\n", line->indent,
1854		line->elements[0].item,
1855		line->elements[0].indent,
1856		cfg->fallbackImage);
1857		} else {
1858		if (lineWrite(out, line, cfg->cfi) == -1) {
1859		fprintf(stderr,
1860		_("grubby: error writing %s: %s\n"),
1861		tmpOutName, strerror(errno));
1862		fclose(out);
1863		unlink(tmpOutName);
1864		return 1;
1865		}
1866		}
1867
1868		line = line->next;
1869		}
1870
1871		if (needs & MAIN_DEFAULT) {
1872		writeDefault(out, cfg->primaryIndent, "=", cfg);
1873		needs &= ~MAIN_DEFAULT;
1874		}
1875
1876		i = 0;
1877		while ((entry = findEntryByIndex(cfg, i++))) {
1878		if (entry->skip)
1879		continue;
1880
1881		line = entry->lines;
1882		while (line) {
1883		if (lineWrite(out, line, cfg->cfi) == -1) {
1884		fprintf(stderr,
1885		_("grubby: error writing %s: %s\n"),
1886		tmpOutName, strerror(errno));
1887		fclose(out);
1888		unlink(tmpOutName);
1889		return 1;
1890		}
1891		line = line->next;
1892		}
1893		}
1894
1895		if (tmpOutName) {
1896		if (rename(tmpOutName, outName)) {
1897		fprintf(stderr,
1898		_("grubby: error moving %s to %s: %s\n"),
1899		tmpOutName, outName, strerror(errno));
1900		unlink(outName);
1901		return 1;
1902		}
1903		}
1904
1905		return 0;
1906		}
1907
1908		static int numEntries(struct grubConfig *cfg)
1909		{
1910		int i = 0;
1911		struct singleEntry *entry;
1912
1913		entry = cfg->entries;
1914		while (entry) {
1915		if (!entry->skip)
1916		i++;
1917		entry = entry->next;
1918		}
1919		return i;
1920		}
1921
1922		static char *findDiskForRoot()
1923		{
1924		int fd;
1925		char buf[65536];
1926		char *devname;
1927		char *chptr;
1928		int rc;
1929
1930		if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) {
1931		fprintf(stderr, "grubby: failed to open %s: %s\n",
1932		_PATH_MOUNTED, strerror(errno));
1933		return NULL;
1934		}
1935
1936		rc = read(fd, buf, sizeof(buf) - 1);
1937		if (rc <= 0) {
1938		fprintf(stderr, "grubby: failed to read %s: %s\n",
1939		_PATH_MOUNTED, strerror(errno));
1940		close(fd);
1941		return NULL;
1942		}
1943		close(fd);
1944		buf[rc] = '\0';
1945		chptr = buf;
1946
1947		char *foundanswer = NULL;
1948
1949		while (chptr && chptr != buf + rc) {
1950		devname = chptr;
1951
1952		/*
1953		* The first column of a mtab entry is the device, but if the
1954		* entry is a special device it won't start with /, so move
1955		* on to the next line.
1956		*/
1957		if (*devname != '/') {
1958		chptr = strchr(chptr, '\n');
1959		if (chptr)
1960		chptr++;
1961		continue;
1962		}
1963
1964		/* Seek to the next space */
1965		chptr = strchr(chptr, ' ');
1966		if (!chptr) {
1967		fprintf(stderr, "grubby: error parsing %s: %s\n",
1968		_PATH_MOUNTED, strerror(errno));
1969		return NULL;
1970		}
1971
1972		/*
1973		* The second column of a mtab entry is the mount point, we
1974		* are looking for '/' obviously.
1975		*/
1976		if (*(++chptr) == '/' && *(++chptr) == ' ') {
1977		/* remember the last / entry in mtab */
1978		foundanswer = devname;
1979		}
1980
1981		/* Next line */
1982		chptr = strchr(chptr, '\n');
1983		if (chptr)
1984		chptr++;
1985		}
1986
1987		/* Return the last / entry found */
1988		if (foundanswer) {
1989		chptr = strchr(foundanswer, ' ');
1990		*chptr = '\0';
1991		return strdup(foundanswer);
1992		}
1993
1994		return NULL;
1995		}
1996
1997		void printEntry(struct singleEntry *entry, FILE * f)
1998		{
1999		int i;
2000		struct singleLine *line;
2001
2002		for (line = entry->lines; line; line = line->next) {
2003		log_message(f, "DBG: %s", line->indent);
2004		for (i = 0; i < line->numElements; i++) {
2005		/* Need to handle this, because we strip the quotes from
2006		* menuentry when read it. */
2007		if (line->type == LT_MENUENTRY && i == 1) {
2008		if (!isquote(*line->elements[i].item))
2009		log_message(f, "\'%s\'",
2010		line->elements[i].item);
2011		else
2012		log_message(f, "%s",
2013		line->elements[i].item);
2014		log_message(f, "%s", line->elements[i].indent);
2015
2016		continue;
2017		}
2018
2019		log_message(f, "%s%s",
2020		line->elements[i].item,
2021		line->elements[i].indent);
2022		}
2023		log_message(f, "\n");
2024	}	}
	fprintf(stderr, "\n");
	}
2025	}	}
2026
2027	void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...)	void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt,
2028		...)
2029	{	{
2030	va_list argp;	static int once;
2031		va_list argp, argq;
2032
2033	if (!debug)	va_start(argp, fmt);
	return;
2034
2035	va_start(argp, fmt);	va_copy(argq, argp);
2036	fprintf(stderr, "DBG: Image entry failed: ");	if (!once) {
2037	vfprintf(stderr, fmt, argp);	log_time(NULL);
2038	printEntry(entry);	log_message(NULL, "command line: %s\n", saved_command_line);
2039	va_end(argp);	}
2040		log_message(NULL, "DBG: Image entry %s: ",
2041		okay ? "succeeded" : "failed");
2042		log_vmessage(NULL, fmt, argq);
2043
2044		printEntry(entry, NULL);
2045		va_end(argq);
2046
2047		if (!debug) {
2048		once = 1;
2049		va_end(argp);
2050		return;
2051		}
2052
2053		if (okay) {
2054		va_end(argp);
2055		return;
2056		}
2057
2058		if (!once)
2059		log_message(stderr, "DBG: command line: %s\n",
2060		saved_command_line);
2061		once = 1;
2062		fprintf(stderr, "DBG: Image entry failed: ");
2063		vfprintf(stderr, fmt, argp);
2064		printEntry(entry, stderr);
2065		va_end(argp);
2066	}	}
2067
2068	#define beginswith(s, c) ((s) && (s)[0] == (c))	#define beginswith(s, c) ((s) && (s)[0] == (c))
#	Line 1473  static int endswith(const char *s, char	Line 2078  static int endswith(const char *s, char
2078	return s[slen] == c;	return s[slen] == c;
2079	}	}
2080
2081	int suitableImage(struct singleEntry * entry, const char * bootPrefix,	int suitableImage(struct singleEntry *entry, const char *bootPrefix,
2082	int skipRemoved, int flags) {	int skipRemoved, int flags)
2083	struct singleLine * line;	{
2084	char * fullName;	struct singleLine *line;
2085	int i;	char *fullName;
2086	char * dev;	int i;
2087	char * rootspec;	char *dev;
2088	char * rootdev;	char *rootspec;
2089		char *rootdev;
	if (skipRemoved && entry->skip) {
	notSuitablePrintf(entry, "marked to skip\n");
	return 0;
	}
2090
2091	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (skipRemoved && entry->skip) {
2092	if (!line) {	notSuitablePrintf(entry, 0, "marked to skip\n");
2093	notSuitablePrintf(entry, "no line found\n");	return 0;
2094	return 0;	}
	}
	if (line->numElements < 2) {
	notSuitablePrintf(entry, "line has only %d elements\n",
	line->numElements);
	return 0;
	}
2095
2096	if (flags & GRUBBY_BADIMAGE_OKAY) return 1;	line =
2097		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2098		entry->lines);
2099		if (!line) {
2100		notSuitablePrintf(entry, 0, "no line found\n");
2101		return 0;
2102		}
2103		if (line->numElements < 2) {
2104		notSuitablePrintf(entry, 0, "line has only %d elements\n",
2105		line->numElements);
2106		return 0;
2107		}
2108
2109	fullName = alloca(strlen(bootPrefix) +	if (flags & GRUBBY_BADIMAGE_OKAY) {
2110	strlen(line->elements[1].item) + 1);	notSuitablePrintf(entry, 1, "\n");
2111	rootspec = getRootSpecifier(line->elements[1].item);	return 1;
2112	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);
2113
2114	if (line && line->numElements >= 2) {	fullName = alloca(strlen(bootPrefix) +
2115	dev = line->elements[1].item;	strlen(line->elements[1].item) + 1);
2116		rootspec = getRootSpecifier(line->elements[1].item);
2117		int rootspec_offset = rootspec ? strlen(rootspec) : 0;
2118		int hasslash = endswith(bootPrefix, '/') ||
2119		beginswith(line->elements[1].item + rootspec_offset, '/');
2120		sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/",
2121		line->elements[1].item + rootspec_offset);
2122		if (access(fullName, R_OK)) {
2123		notSuitablePrintf(entry, 0, "access to %s failed\n", fullName);
2124		return 0;
2125		}
2126		for (i = 2; i < line->numElements; i++)
2127		if (!strncasecmp(line->elements[i].item, "root=", 5))
2128		break;
2129		if (i < line->numElements) {
2130		dev = line->elements[i].item + 5;
2131	} else {	} else {
2132	/* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS.	/* look for a lilo style LT_ROOT line */
2133	* grub+multiboot uses LT_MBMODULE for the args, so check that too.	line = getLineByType(LT_ROOT, entry->lines);
2134	*/
2135	line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines);	if (line && line->numElements >= 2) {
2136		dev = line->elements[1].item;
2137	/* failed to find one */	} else {
2138	if (!line) {	/* didn't succeed in finding a LT_ROOT, let's try
2139	notSuitablePrintf(entry, "no line found\n");	* LT_KERNELARGS.  grub+multiboot uses LT_MBMODULE
2140	return 0;	* for the args, so check that too.
2141	}	*/
2142		line =
2143	for (i = 1; i < line->numElements; i++)	getLineByType(LT_KERNELARGS | LT_MBMODULE,
2144	if (!strncasecmp(line->elements[i].item, "root=", 5)) break;	entry->lines);
2145	if (i < line->numElements)
2146	dev = line->elements[i].item + 5;	/* failed to find one */
2147	else {	if (!line) {
2148	notSuitablePrintf(entry, "no root= entry found\n");	notSuitablePrintf(entry, 0, "no line found\n");
2149	/* it failed too...  can't find root= */	return 0;
2150	return 0;	}
2151	}
2152		for (i = 1; i < line->numElements; i++)
2153		if (!strncasecmp
2154		(line->elements[i].item, "root=", 5))
2155		break;
2156		if (i < line->numElements)
2157		dev = line->elements[i].item + 5;
2158		else {
2159		notSuitablePrintf(entry, 0,
2160		"no root= entry found\n");
2161		/* it failed too...  can't find root= */
2162		return 0;
2163		}
2164		}
2165	}	}
	}
2166
	dev = getpathbyspec(dev);
	if (!getpathbyspec(dev)) {
	notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev);
	return 0;
	} else
2167	dev = getpathbyspec(dev);	dev = getpathbyspec(dev);
2168		if (!getpathbyspec(dev)) {
2169		notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n",
2170		dev);
2171		return 0;
2172		} else
2173		dev = getpathbyspec(dev);
2174
2175	rootdev = findDiskForRoot();	rootdev = findDiskForRoot();
2176	if (!rootdev) {	if (!rootdev) {
2177	notSuitablePrintf(entry, "can't find root device\n");	notSuitablePrintf(entry, 0, "can't find root device\n");
2178	return 0;	return 0;
2179	}	}
2180
2181	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {	if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) {
2182	notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2183	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid missing: rootdev %s, dev %s\n",
2184	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2185	return 0;	free(rootdev);
2186	}	return 0;
2187		}
2188
2189	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {	if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) {
2190	notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n",	notSuitablePrintf(entry, 0,
2191	getuuidbydev(rootdev), getuuidbydev(dev));	"uuid mismatch: rootdev %s, dev %s\n",
2192	free(rootdev);	getuuidbydev(rootdev), getuuidbydev(dev));
2193	return 0;	free(rootdev);
2194	}	return 0;
2195		}
2196
2197	free(rootdev);	free(rootdev);
2198		notSuitablePrintf(entry, 1, "\n");
2199
2200	return 1;	return 1;
2201	}	}
2202
2203	/* 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
2204	is not NULL) which is not marked as skip */	is not NULL) which is not marked as skip */
2205	struct singleEntry * findEntryByPath(struct grubConfig * config,	struct singleEntry *findEntryByPath(struct grubConfig *config,
2206	const char * kernel, const char * prefix,	const char *kernel, const char *prefix,
2207	int * index) {	int *index)
2208	struct singleEntry * entry = NULL;	{
2209	struct singleLine * line;	struct singleEntry *entry = NULL;
2210	int i;	struct singleLine *line;
2211	char * chptr;	int i;
2212	char * rootspec = NULL;	char *chptr;
2213	enum lineType_e checkType = LT_KERNEL;	char *rootspec = NULL;
2214		enum lineType_e checkType = LT_KERNEL;
2215	if (isdigit(*kernel)) {
2216	int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel));	if (isdigit(*kernel)) {
2217		int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel));
2218	i = 0;
2219	indexVars[i] = strtol(kernel, &chptr, 10);	i = 0;
2220	while (*chptr == ',') {	indexVars[i] = strtol(kernel, &chptr, 10);
2221	i++;	while (*chptr == ',') {
2222	kernel = chptr + 1;	i++;
2223	indexVars[i] = strtol(kernel, &chptr, 10);	kernel = chptr + 1;
2224	}	indexVars[i] = strtol(kernel, &chptr, 10);
2225		}
2226
2227	if (*chptr) {	if (*chptr) {
2228	/* can't parse it, bail */	/* can't parse it, bail */
2229	return NULL;	return NULL;
2230	}	}
2231
2232	indexVars[i + 1] = -1;	indexVars[i + 1] = -1;
	i = 0;
	if (index) {
	while (i < *index) i++;
	if (indexVars[i] == -1) return NULL;
	}
2233
2234	entry = findEntryByIndex(config, indexVars[i]);	i = 0;
2235	if (!entry) return NULL;	if (index) {
2236		while (i < *index) {
2237		i++;
2238		if (indexVars[i] == -1)
2239		return NULL;
2240		}
2241		}
2242
2243	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	entry = findEntryByIndex(config, indexVars[i]);
2244	if (!line) return NULL;	if (!entry)
2245		return NULL;
2246
2247		line =
2248		getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
2249		LT_KERNEL_16, entry->lines);
2250		if (!line)
2251		return NULL;
2252
2253		if (index)
2254		*index = indexVars[i];
2255		return entry;
2256		}
2257
2258		if (!strcmp(kernel, "DEFAULT")) {
2259		if (index && *index > config->defaultImage) {
2260		entry = NULL;
2261		} else {
2262		entry = findEntryByIndex(config, config->defaultImage);
2263		if (entry && entry->skip)
2264		entry = NULL;
2265		else if (index)
2266		*index = config->defaultImage;
2267		}
2268		} else if (!strcmp(kernel, "ALL")) {
2269		if (index)
2270		i = *index;
2271		else
2272		i = 0;
2273
2274		while ((entry = findEntryByIndex(config, i))) {
2275		if (!entry->skip)
2276		break;
2277		i++;
2278		}
2279
2280	if (index) *index = indexVars[i];	if (entry && index)
2281	return entry;	*index = i;
2282	}	} else {
2283		if (index)
2284	if (!strcmp(kernel, "DEFAULT")) {	i = *index;
2285	if (index && *index > config->defaultImage) {	else
2286	entry = NULL;	i = 0;
2287	} else {
2288	entry = findEntryByIndex(config, config->defaultImage);	if (!strncmp(kernel, "TITLE=", 6)) {
2289	if (entry && entry->skip)	prefix = "";
2290	entry = NULL;	checkType = LT_TITLE | LT_MENUENTRY;
2291	else if (index)	kernel += 6;
2292	*index = config->defaultImage;	}
	}
	} else if (!strcmp(kernel, "ALL")) {
	if (index)
	i = *index;
	else
	i = 0;
2293
2294	while ((entry = findEntryByIndex(config, i))) {	for (entry = findEntryByIndex(config, i); entry;
2295	if (!entry->skip) break;	entry = entry->next, i++) {
2296	i++;	if (entry->skip)
2297	}	continue;
2298
2299		dbgPrintf("findEntryByPath looking for %d %s in %p\n",
2300		checkType, kernel, entry);
2301
2302		/* check all the lines matching checkType */
2303		for (line = entry->lines; line; line = line->next) {
2304		enum lineType_e ct = checkType;
2305		if (entry->multiboot && checkType == LT_KERNEL)
2306		ct = LT_KERNEL | LT_KERNEL_EFI |
2307		LT_MBMODULE | LT_HYPER |
2308		LT_KERNEL_16;
2309		else if (checkType & LT_KERNEL)
2310		ct = checkType | LT_KERNEL_EFI |
2311		LT_KERNEL_16;
2312		line = getLineByType(ct, line);
2313		if (!line)
2314		break; /* not found in this entry */
2315
2316		if (line && line->type != LT_MENUENTRY &&
2317		line->numElements >= 2) {
2318		rootspec =
2319		getRootSpecifier(line->elements[1].
2320		item);
2321		if (!strcmp
2322		(line->elements[1].item +
2323		((rootspec !=
2324		NULL) ? strlen(rootspec) : 0),
2325		kernel + strlen(prefix)))
2326		break;
2327		}
2328		if (line->type == LT_MENUENTRY &&
2329		!strcmp(line->elements[1].item, kernel))
2330		break;
2331		}
2332
2333	if (entry && index)	/* make sure this entry has a kernel identifier; this skips
2334	*index = i;	* non-Linux boot entries (could find netbsd etc, though, which is
2335	} else {	* unfortunate)
2336	if (index)	*/
2337	i = *index;	if (line
2338	else	&& getLineByType(LT_KERNEL | LT_HYPER |
2339	i = 0;	LT_KERNEL_EFI | LT_KERNEL_16,
2340		entry->lines))
2341		break; /* found 'im! */
2342		}
2343
2344	if (!strncmp(kernel, "TITLE=", 6)) {	if (index)
2345	prefix = "";	*index = i;
	checkType = LT_TITLE;
	kernel += 6;
2346	}	}
2347
2348	for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) {	return entry;
2349	if (entry->skip) continue;	}
	dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry);
	/* check all the lines matching checkType */
	for (line = entry->lines; line; line = line->next) {
	line = getLineByType(entry->multiboot && checkType == LT_KERNEL ?
	LT_KERNEL|LT_MBMODULE|LT_HYPER :
	checkType, line);
	if (!line) break;  /* not found in this entry */
2350
2351	if (line && line->numElements >= 2) {	struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title,
2352	rootspec = getRootSpecifier(line->elements[1].item);	int *index)
2353	if (!strcmp(line->elements[1].item +	{
2354	((rootspec != NULL) ? strlen(rootspec) : 0),	struct singleEntry *entry;
2355	kernel + strlen(prefix)))	struct singleLine *line;
2356		int i;
2357		char *newtitle;
2358
2359		for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) {
2360		if (index && i < *index)
2361		continue;
2362		line = getLineByType(LT_TITLE, entry->lines);
2363		if (!line)
2364		line = getLineByType(LT_MENUENTRY, entry->lines);
2365		if (!line)
2366		continue;
2367		newtitle = grub2ExtractTitle(line);
2368		if (!newtitle)
2369		continue;
2370		if (!strcmp(title, newtitle))
2371	break;	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! */
2372	}	}
2373
2374	if (index) *index = i;	if (!entry)
2375	}	return NULL;
2376
2377	return entry;	if (index)
2378		*index = i;
2379		return entry;
2380	}	}
2381
2382	struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) {	struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index)
2383	struct singleEntry * entry;	{
2384		struct singleEntry *entry;
2385
2386	entry = cfg->entries;	entry = cfg->entries;
2387	while (index && entry) {	while (index && entry) {
2388	entry = entry->next;	entry = entry->next;
2389	index--;	index--;
2390	}	}
2391
2392	return entry;	return entry;
2393	}	}
2394
2395	/* 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 1711  struct singleEntry * findEntryByIndex(st	Line 2397  struct singleEntry * findEntryByIndex(st
2397	* is going to be removed). Try and use the default entry, but	* is going to be removed). Try and use the default entry, but
2398	* 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,
2399	* bail. */	* bail. */
2400	struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix,	struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix,
2401	int * indexPtr, int skipRemoved, int flags) {	int *indexPtr, int skipRemoved, int flags)
2402	struct singleEntry * entry, * entry2;	{
2403	int index;	struct singleEntry *entry, *entry2;
2404		int index;
2405	if (cfg->defaultImage > -1) {
2406	entry = findEntryByIndex(cfg, cfg->defaultImage);	if (cfg->cfi->defaultIsSaved) {
2407	if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {	if (cfg->cfi->getEnv) {
2408	if (indexPtr) *indexPtr = cfg->defaultImage;	char *defTitle =
2409	return entry;	cfg->cfi->getEnv(cfg->cfi, "saved_entry");
2410		if (defTitle) {
2411		int index = 0;
2412		if (isnumber(defTitle)) {
2413		index = atoi(defTitle);
2414		entry = findEntryByIndex(cfg, index);
2415		} else {
2416		entry =
2417		findEntryByTitle(cfg, defTitle,
2418		&index);
2419		}
2420		if (entry
2421		&& suitableImage(entry, prefix, skipRemoved,
2422		flags)) {
2423		cfg->defaultImage = index;
2424		if (indexPtr)
2425		*indexPtr = index;
2426		return entry;
2427		}
2428		}
2429		}
2430		} else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) {
2431		entry = findEntryByIndex(cfg, cfg->defaultImage);
2432		if (entry && suitableImage(entry, prefix, skipRemoved, flags)) {
2433		if (indexPtr)
2434		*indexPtr = cfg->defaultImage;
2435		return entry;
2436		}
2437	}	}
	}
2438
2439	index = 0;	index = 0;
2440	while ((entry = findEntryByIndex(cfg, index))) {	while ((entry = findEntryByIndex(cfg, index))) {
2441	if (suitableImage(entry, prefix, skipRemoved, flags)) {	if (suitableImage(entry, prefix, skipRemoved, flags)) {
2442	int j;	int j, unmodifiedIndex;
2443	for (j = 0; j < index; j++) {
2444	entry2 = findEntryByIndex(cfg, j);	unmodifiedIndex = index;
2445	if (entry2->skip) index--;
2446	}	for (j = 0; j < unmodifiedIndex; j++) {
2447	if (indexPtr) *indexPtr = index;	entry2 = findEntryByIndex(cfg, j);
2448		if (entry2->skip)
2449		index--;
2450		}
2451		if (indexPtr)
2452		*indexPtr = index;
2453
2454	return entry;	return entry;
2455	}	}
2456
2457	index++;	index++;
2458	}	}
2459
2460	fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n"));	fprintf(stderr,
2461		_("grubby fatal error: unable to find a suitable template\n"));
2462
2463	return NULL;	return NULL;
2464	}	}
2465
2466	char * findBootPrefix(void) {	char *findBootPrefix(void)
2467	struct stat sb, sb2;	{
2468		struct stat sb, sb2;
2469
2470	stat("/", &sb);	stat("/", &sb);
2471	#ifdef __ia64__	#ifdef __ia64__
2472	stat("/boot/efi/EFI/redhat/", &sb2);	stat("/boot/efi/EFI/redhat/", &sb2);
2473	#else	#else
2474	stat("/boot", &sb2);	stat("/boot", &sb2);
2475	#endif	#endif
2476
2477	if (sb.st_dev == sb2.st_dev)	if (sb.st_dev == sb2.st_dev)
2478	return strdup("");	return strdup("");
2479
2480	#ifdef __ia64__	#ifdef __ia64__
2481	return strdup("/boot/efi/EFI/redhat/");	return strdup("/boot/efi/EFI/redhat/");
2482	#else	#else
2483	return strdup("/boot");	return strdup("/boot");
2484	#endif	#endif
2485	}	}
2486
2487	void markRemovedImage(struct grubConfig * cfg, const char * image,	void markRemovedImage(struct grubConfig *cfg, const char *image,
2488	const char * prefix) {	const char *prefix)
2489	struct singleEntry * entry;	{
2490		struct singleEntry *entry;
	if (!image) return;
	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
	entry->skip = 1;
	}
	void setDefaultImage(struct grubConfig * config, int hasNew,
	const char * defaultKernelPath, int newIsDefault,
	const char * prefix, int flags) {
	struct singleEntry * entry, * entry2, * newDefault;
	int i, j;
	if (newIsDefault) {
	config->defaultImage = 0;
	return;
	} else if (defaultKernelPath) {
	i = 0;
	if (findEntryByPath(config, defaultKernelPath, prefix, &i)) {
	config->defaultImage = i;
	} else {
	config->defaultImage = -1;
	return;
	}
	}
2491
2492	/* defaultImage now points to what we'd like to use, but before any order	if (!image)
2493	changes */	return;
	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;
2494
2495	if (entry && !entry->skip) {	/* check and see if we're removing the default image */
2496	/* we can preserve the default */	if (isdigit(*image)) {
2497	if (hasNew)	entry = findEntryByPath(cfg, image, prefix, NULL);
2498	config->defaultImage++;	if (entry)
2499		entry->skip = 1;
2500	/* count the number of entries erased before this one */	return;
2501	for (j = 0; j < config->defaultImage; j++) {	}
2502	entry2 = findEntryByIndex(config, j);
2503	if (entry2->skip) config->defaultImage--;	while ((entry = findEntryByPath(cfg, image, prefix, NULL)))
2504	}	entry->skip = 1;
	} 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;
	}
2505	}	}
2506
2507	void setFallbackImage(struct grubConfig * config, int hasNew) {	void setDefaultImage(struct grubConfig *config, int isAddingBootEntry,
2508	struct singleEntry * entry, * entry2;	const char *defaultKernelPath, int newBootEntryIsDefault,
2509	int j;	const char *prefix, int flags,
2510		int newDefaultBootEntryIndex, int newBootEntryIndex)
2511	if (config->fallbackImage == -1) return;	{
2512		struct singleEntry *bootEntry, *newDefault;
2513	entry = findEntryByIndex(config, config->fallbackImage);	int indexToVerify, firstKernelEntryIndex, currentLookupIndex;
	if (!entry || entry->skip) {
	config->fallbackImage = -1;
	return;
	}
2514
2515	if (hasNew)	/* handle the two cases where the user explictly picks the default
2516	config->fallbackImage++;	* boot entry index as it would exist post-modification */
	/* count the number of entries erased before this one */
	for (j = 0; j < config->fallbackImage; j++) {
	entry2 = findEntryByIndex(config, j);
	if (entry2->skip) config->fallbackImage--;
	}
	}
2517
2518	void displayEntry(struct singleEntry * entry, const char * prefix, int index) {	/* Case 1: user chose to make the latest boot entry the default */
2519	struct singleLine * line;	if (newBootEntryIsDefault) {
2520	char * root = NULL;	config->defaultImage = newBootEntryIndex;
2521	int i;	return;
2522		}
2523	printf("index=%d\n", index);
2524		/* Case 2: user picked an arbitrary index as the default boot entry */
2525	line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines);	if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX
2526	if (!line) {	&& config->cfi->defaultIsIndex) {
2527	printf("non linux entry\n");	indexToVerify = newDefaultBootEntryIndex;
2528	return;
2529	}	/* user chose to make latest boot entry the default */
2530		if (newDefaultBootEntryIndex == newBootEntryIndex) {
2531		config->defaultImage = newBootEntryIndex;
2532		return;
2533		}
2534
2535	printf("kernel=%s%s\n", prefix, line->elements[1].item);	/* the user picks the default index based on the
2536		* order of the bootloader configuration after
2537		* modification; ensure we are checking for the
2538		* existence of the correct entry */
2539		if (newBootEntryIndex < newDefaultBootEntryIndex) {
2540		if (!config->isModified)
2541		indexToVerify--;
2542		}
2543
2544	if (line->numElements >= 3) {	/* verify the user selected index will exist */
2545	printf("args=\"");	if (findEntryByIndex(config, indexToVerify)) {
2546	i = 2;	config->defaultImage = newDefaultBootEntryIndex;
2547	while (i < line->numElements) {	} else {
2548	if (!strncmp(line->elements[i].item, "root=", 5)) {	config->defaultImage = NO_DEFAULT_ENTRY;
2549	root = line->elements[i].item + 5;	}
	} else {
	printf("%s%s", line->elements[i].item,
	line->elements[i].indent);
	}
2550
2551	i++;	return;
2552	}	}
	printf("\"\n");
	} else {
	line = getLineByType(LT_KERNELARGS, entry->lines);
	if (line) {
	char * s;
2553
2554	printf("args=\"");	/* handle cases where the index value may shift */
	i = 1;
	while (i < line->numElements) {
	if (!strncmp(line->elements[i].item, "root=", 5)) {
	root = line->elements[i].item + 5;
	} else {
	s = line->elements[i].item;
2555
2556	printf("%s%s", s, line->elements[i].indent);	/* check validity of existing default or first-entry-found
2557		selection */
2558		if (defaultKernelPath) {
2559		/* user requested first-entry-found */
2560		if (!findEntryByPath(config, defaultKernelPath,
2561		prefix, &firstKernelEntryIndex)) {
2562		/* don't change default if can't find match */
2563		config->defaultImage = NO_DEFAULT_ENTRY;
2564		return;
2565	}	}
2566
2567	i++;	config->defaultImage = firstKernelEntryIndex;
	}
2568
2569	s = line->elements[i - 1].indent;	/* this is where we start looking for decrement later */
2570	printf("\"\n");	currentLookupIndex = config->defaultImage;
	}
	}
2571
2572	if (!root) {	if (isAddingBootEntry && !config->isModified &&
2573	line = getLineByType(LT_ROOT, entry->lines);	(newBootEntryIndex < config->defaultImage)) {
2574	if (line && line->numElements >= 2)	/* increment because new entry added before default */
2575	root=line->elements[1].item;	config->defaultImage++;
2576	}	}
2577		} else {
2578		/* use pre-existing default entry */
2579		currentLookupIndex = config->defaultImage;
2580
2581	if (root) {	if (isAddingBootEntry
2582	char * s = alloca(strlen(root) + 1);	&& (newBootEntryIndex <= config->defaultImage)) {
2583		config->defaultImage++;
	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);
	}
2584
2585	line = getLineByType(LT_INITRD, entry->lines);	if (config->isModified) {
2586		currentLookupIndex++;
2587		}
2588		}
2589		}
2590
2591	if (line && line->numElements >= 2) {	/* sanity check - is this entry index valid? */
2592	printf("initrd=%s", prefix);	bootEntry = findEntryByIndex(config, currentLookupIndex);
	for (i = 1; i < line->numElements; i++)
	printf("%s%s", line->elements[i].item, line->elements[i].indent);
	printf("\n");
	}
2593
2594	line = getLineByType(LT_TITLE, entry->lines);	if ((bootEntry && bootEntry->skip) || !bootEntry) {
2595	if (line) {	/* entry is to be skipped or is invalid */
2596	printf("title=%s\n", line->elements[1].item);	if (isAddingBootEntry) {
2597	} else {	config->defaultImage = newBootEntryIndex;
2598	char * title;	return;
2599	line = getLineByType(LT_MENUENTRY, entry->lines);	}
2600	title = grub2ExtractTitle(line);	newDefault =
2601	if (title)	findTemplate(config, prefix, &config->defaultImage, 1,
2602	printf("title=%s\n", title);	flags);
2603	}	if (!newDefault) {
2604	}	config->defaultImage = NO_DEFAULT_ENTRY;
2605		}
2606
2607	int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) {	return;
2608	FILE * in;	}
	char buf[1024];
	char * chptr;
	char * start;
	char * param;
	in = fopen("/etc/conf.d/grub", "r");
	if (!in) return 1;
	if (lbaPtr) *lbaPtr = 0;
	if (bootPtr) *bootPtr = NULL;
	while (fgets(buf, sizeof(buf), in)) {
	start = buf;
	while (isspace(*start)) start++;
	if (*start == '#') continue;
	chptr = strchr(start, '=');
	if (!chptr) continue;
	chptr--;
	while (*chptr && isspace(*chptr)) chptr--;
	chptr++;
	*chptr = '\0';
	param = chptr + 1;
	while (*param && isspace(*param)) param++;
	if (*param == '=') {
	param++;
	while (*param && isspace(*param)) param++;
	}
	chptr = param;
	while (*chptr && !isspace(*chptr)) chptr++;
	*chptr = '\0';
	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
	*lbaPtr = 1;
	else if (!strcmp(start, "boot") && bootPtr)
	*bootPtr = strdup(param);
	}
2609
2610	fclose(in);	currentLookupIndex--;
2611
2612	return 0;	/* decrement index by the total number of entries deleted */
	}
2613
2614	void dumpSysconfigGrub(void) {	for (indexToVerify = currentLookupIndex;
2615	char * boot;	indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) {
	int lba;
	if (!parseSysconfigGrub(&lba, &boot)) {
	if (lba) printf("lba\n");
	if (boot) printf("boot=%s\n", boot);
	}
	}
2616
2617	int displayInfo(struct grubConfig * config, char * kernel,	bootEntry = findEntryByIndex(config, indexToVerify);
	const char * prefix) {
	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;
	}
2618
2619	/* this is a horrible hack to support /etc/conf.d/grub; there must	if (bootEntry && bootEntry->skip) {
2620	be a better way */	config->defaultImage--;
2621	if (config->cfi == &grubConfigType) {	}
	dumpSysconfigGrub();
	} else {
	line = getLineByType(LT_BOOT, config->theLines);
	if (line && line->numElements >= 1) {
	printf("boot=%s\n", line->elements[1].item);
2622	}	}
2623		}
2624
2625	line = getLineByType(LT_LBA, config->theLines);	void setFallbackImage(struct grubConfig *config, int hasNew)
2626	if (line) printf("lba\n");	{
2627	}	struct singleEntry *entry, *entry2;
2628		int j;
2629
2630	displayEntry(entry, prefix, i);	if (config->fallbackImage == -1)
2631		return;
2632
2633	i++;	entry = findEntryByIndex(config, config->fallbackImage);
2634	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {	if (!entry || entry->skip) {
2635	displayEntry(entry, prefix, i);	config->fallbackImage = -1;
2636	i++;	return;
2637	}	}
2638
2639	return 0;	if (hasNew)
2640	}	config->fallbackImage++;
2641
2642	struct singleLine * addLineTmpl(struct singleEntry * entry,	/* count the number of entries erased before this one */
2643	struct singleLine * tmplLine,	for (j = 0; j < config->fallbackImage; j++) {
2644	struct singleLine * prevLine,	entry2 = findEntryByIndex(config, j);
2645	const char * val,	if (entry2->skip)
2646	struct configFileInfo * cfi)	config->fallbackImage--;
	{
	struct singleLine * newLine = lineDup(tmplLine);
	if (val) {
	/* override the inherited value with our own.
	* This is a little weak because it only applies to elements[1]
	*/
	if (newLine->numElements > 1)
	removeElement(newLine, 1);
	insertElement(newLine, val, 1, cfi);
	/* but try to keep the rootspec from the template... sigh */
	if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) {
	char * rootspec = getRootSpecifier(tmplLine->elements[1].item);
	if (rootspec != NULL) {
	free(newLine->elements[1].item);
	newLine->elements[1].item =
	sdupprintf("%s%s", rootspec, val);
	}
2647	}	}
2648	}	}
	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
	newLine->elements[0].item : "");
2649
2650	if (!entry->lines) {	void displayEntry(struct singleEntry *entry, const char *prefix, int index)
2651	/* first one on the list */	{
2652	entry->lines = newLine;	struct singleLine *line;
2653	} else if (prevLine) {	char *root = NULL;
2654	/* add after prevLine */	int i;
2655	newLine->next = prevLine->next;	int j;
	prevLine->next = newLine;
	}
2656
2657	return newLine;	printf("index=%d\n", index);
	}
2658
2659	/* val may be NULL */	line =
2660	struct singleLine *  addLine(struct singleEntry * entry,	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16,
2661	struct configFileInfo * cfi,	entry->lines);
2662	enum lineType_e type, char * defaultIndent,	if (!line) {
2663	const char * val) {	printf("non linux entry\n");
2664	struct singleLine * line, * prev;	return;
	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 = "";
2665	}	}
	}
	/* The last non-empty line gives us the indention to us and the line
	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;
	}
2666
2667	struct singleLine *menuEntry;	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2668	menuEntry = getLineByType(LT_MENUENTRY, entry->lines);	printf("kernel=%s\n", line->elements[1].item);
	if (tmpl.type == LT_ENTRY_END) {
	if (menuEntry)
	tmpl.indent = menuEntry->indent;
	else
	tmpl.indent = defaultIndent ?: "";
	} else if (tmpl.type != LT_MENUENTRY) {
	if (menuEntry)
	tmpl.indent = "\t";
	else if (prev == entry->lines)
	tmpl.indent = defaultIndent ?: "";
2669	else	else
2670	tmpl.indent = prev->indent;	printf("kernel=%s%s\n", prefix, line->elements[1].item);
	}
2671
2672	return addLineTmpl(entry, &tmpl, prev, val, cfi);	if (line->numElements >= 3) {
2673	}	printf("args=\"");
2674		i = 2;
2675		while (i < line->numElements) {
2676		if (!strncmp(line->elements[i].item, "root=", 5)) {
2677		root = line->elements[i].item + 5;
2678		} else {
2679		printf("%s%s", line->elements[i].item,
2680		line->elements[i].indent);
2681		}
2682
2683	void removeLine(struct singleEntry * entry, struct singleLine * line) {	i++;
2684	struct singleLine * prev;	}
2685	int i;	printf("\"\n");
2686		} else {
2687		line = getLineByType(LT_KERNELARGS, entry->lines);
2688		if (line) {
2689		char *s;
2690
2691		printf("args=\"");
2692		i = 1;
2693		while (i < line->numElements) {
2694		if (!strncmp
2695		(line->elements[i].item, "root=", 5)) {
2696		root = line->elements[i].item + 5;
2697		} else {
2698		s = line->elements[i].item;
2699
2700	for (i = 0; i < line->numElements; i++) {	printf("%s%s", s,
2701	free(line->elements[i].item);	line->elements[i].indent);
2702	free(line->elements[i].indent);	}
	}
	free(line->elements);
	free(line->indent);
2703
2704	if (line == entry->lines) {	i++;
2705	entry->lines = line->next;	}
	} else {
	prev = entry->lines;
	while (prev->next != line) prev = prev->next;
	prev->next = line->next;
	}
2706
2707	free(line);	s = line->elements[i - 1].indent;
2708	}	printf("\"\n");
2709		}
2710		}
2711
2712	static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi)	if (!root) {
2713	{	line = getLineByType(LT_ROOT, entry->lines);
2714	struct singleLine newLine = {	if (line && line->numElements >= 2)
2715	.indent = tmplLine->indent,	root = line->elements[1].item;
	.type = tmplLine->type,
	.next = tmplLine->next,
	};
	int firstQuotedItem = -1;
	int quoteLen = 0;
	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;
	}
	} else {
	int itemlen = strlen(tmplLine->elements[j].item);
	quoteLen += itemlen;
	quoteLen += strlen(tmplLine->elements[j].indent);
	if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
	c = malloc(quoteLen + 1);
	c[0] = '\0';
	for (int i = firstQuotedItem; i < j+1; i++) {
	strcat(c, tmplLine->elements[i].item);
	strcat(c, tmplLine->elements[i].indent);
	}
	insertElement(&newLine, c, element++, cfi);
	free(c);
	firstQuotedItem = -1;
	quoteLen = 0;
	}
2716	}	}
	}
	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;
	}
2717
2718	line->elements = realloc(line->elements, (line->numElements + 1) *	if (root) {
2719	sizeof(*line->elements));	char *s = alloca(strlen(root) + 1);
	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] = ' ';
	}
2720
2721	if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') {	strcpy(s, root);
2722	/* move the end-of-line forward */	if (s[strlen(s) - 1] == '"')
2723	line->elements[insertHere].indent =	s[strlen(s) - 1] = '\0';
2724	line->elements[insertHere-1].indent;	/* make sure the root doesn't have a trailing " */
2725	line->elements[insertHere-1].indent = strdup(indent);	printf("root=%s\n", s);
2726	} else {	}
	line->elements[insertHere].indent = strdup(indent);
	}
2727
2728	line->numElements++;	line =
2729		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
2730		entry->lines);
2731
2732	dbgPrintf("insertElement(%s, '%s%s', %d)\n",	if (line && line->numElements >= 2) {
2733	line->elements[0].item,	if (!strncmp(prefix, line->elements[1].item, strlen(prefix)))
2734	line->elements[insertHere].item,	printf("initrd=");
2735	line->elements[insertHere].indent,	else
2736	insertHere);	printf("initrd=%s", prefix);
2737	}
2738		for (i = 1; i < line->numElements; i++)
2739		printf("%s%s", line->elements[i].item,
2740		line->elements[i].indent);
2741		printf("\n");
2742		}
2743
2744	static void removeElement(struct singleLine * line, int removeHere) {	line = getLineByType(LT_TITLE, entry->lines);
2745	int i;	if (line) {
2746		printf("title=%s\n", line->elements[1].item);
2747		} else {
2748		char *title;
2749		line = getLineByType(LT_MENUENTRY, entry->lines);
2750		if (line) {
2751		title = grub2ExtractTitle(line);
2752		if (title)
2753		printf("title=%s\n", title);
2754		}
2755		}
2756
2757	/* sanity check */	for (j = 0, line = entry->lines; line; line = line->next) {
2758	if (removeHere >= line->numElements) return;	if ((line->type & LT_MBMODULE) && line->numElements >= 2) {
2759		if (!strncmp
2760		(prefix, line->elements[1].item, strlen(prefix)))
2761		printf("mbmodule%d=", j);
2762		else
2763		printf("mbmodule%d=%s", j, prefix);
2764
2765		for (i = 1; i < line->numElements; i++)
2766		printf("%s%s", line->elements[i].item,
2767		line->elements[i].indent);
2768		printf("\n");
2769		j++;
2770		}
2771		}
2772		}
2773
2774	dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,	int isSuseSystem(void)
2775	removeHere, line->elements[removeHere].item);	{
2776		const char *path;
2777		const static char default_path[] = "/etc/SuSE-release";
2778
2779	free(line->elements[removeHere].item);	if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL)
2780		path = default_path;
2781
2782	if (removeHere > 1) {	if (!access(path, R_OK))
2783	/* previous argument gets this argument's post-indentation */	return 1;
2784	free(line->elements[removeHere-1].indent);	return 0;
2785	line->elements[removeHere-1].indent =	}
	line->elements[removeHere].indent;
	} else {
	free(line->elements[removeHere].indent);
	}
2786
2787	/* now collapse the array, but don't bother to realloc smaller */	int isSuseGrubConf(const char *path)
2788	for (i = removeHere; i < line->numElements - 1; i++)	{
2789	line->elements[i] = line->elements[i + 1];	FILE *grubConf;
2790		char *line = NULL;
2791	line->numElements--;	size_t len = 0, res = 0;
2792	}
2793		grubConf = fopen(path, "r");
2794	int argMatch(const char * one, const char * two) {	if (!grubConf) {
2795	char * first, * second;	dbgPrintf("Could not open SuSE configuration file '%s'\n",
2796	char * chptr;	path);
2797		return 0;
	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;
2798	}	}
	}
2799
2800	if (!removeArgs) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2801	oldArgs = malloc(sizeof(*oldArgs));	if (!strncmp(line, "setup", 5)) {
2802	*oldArgs = NULL;	fclose(grubConf);
2803	} else {	free(line);
2804	if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {	return 1;
2805	fprintf(stderr,	}
	_("grubby: error separating arguments '%s'\n"), removeArgs);
	free(newArgs);
	return 1;
2806	}	}
	}
2807
2808		dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n",
2809		path);
2810
2811	useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)	fclose(grubConf);
2812	&& (!multibootArgs || cfg->cfi->mbConcatArgs));	free(line);
2813		return 0;
2814		}
2815
2816	useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)	int suseGrubConfGetLba(const char *path, int *lbaPtr)
2817	&& !multibootArgs);	{
2818		FILE *grubConf;
2819		char *line = NULL;
2820		size_t res = 0, len = 0;
2821
2822	for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {	if (!path)
2823		return 1;
2824		if (!lbaPtr)
2825		return 1;
2826
2827	if (multibootArgs && !entry->multiboot)	grubConf = fopen(path, "r");
2828	continue;	if (!grubConf)
2829		return 1;
2830
2831	/* Determine where to put the args.  If this config supports	while ((res = getline(&line, &len, grubConf)) != -1) {
2832	* LT_KERNELARGS, use that.  Otherwise use	if (line[res - 1] == '\n')
2833	* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.	line[res - 1] = '\0';
2834	*/	else if (len > res)
2835	if (useKernelArgs) {	line[res] = '\0';
2836	line = getLineByType(LT_KERNELARGS, entry->lines);	else {
2837	if (!line) {	line = realloc(line, res + 1);
2838	/* no LT_KERNELARGS, need to add it */	line[res] = '\0';
2839	line = addLine(entry, cfg->cfi, LT_KERNELARGS,	}
2840	cfg->secondaryIndent, NULL);
2841	}	if (!strncmp(line, "setup", 5)) {
2842	firstElement = 1;	if (strstr(line, "--force-lba")) {
2843		*lbaPtr = 1;
2844	} else if (multibootArgs) {	} else {
2845	line = getLineByType(LT_HYPER, entry->lines);	*lbaPtr = 0;
2846	if (!line) {	}
2847	/* a multiboot entry without LT_HYPER? */	dbgPrintf("lba: %i\n", *lbaPtr);
2848	continue;	break;
2849	}	}
	firstElement = 2;
	} else {
	line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines);
	if (!line) {
	/* no LT_KERNEL or LT_MBMODULE in this entry? */
	continue;
	}
	firstElement = 2;
2850	}	}
2851
2852	/* handle the elilo case which does:	free(line);
2853	*   append="hypervisor args -- kernel args"	fclose(grubConf);
2854	*/	return 0;
2855	if (entry->multiboot && cfg->cfi->mbConcatArgs) {	}
	/* this is a multiboot entry, make sure there's
	* -- on the args line
	*/
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i == line->numElements) {
	/* assume all existing args are kernel args,
	* prepend -- to make it official
	*/
	insertElement(line, "--", firstElement, cfg->cfi);
	i = firstElement;
	}
	if (!multibootArgs) {
	/* kernel args start after the -- */
	firstElement = i + 1;
	}
	} else if (cfg->cfi->mbConcatArgs) {
	/* this is a non-multiboot entry, remove hyper args */
	for (i = firstElement; i < line->numElements; i++) {
	if (!strcmp(line->elements[i].item, "--"))
	break;
	}
	if (i < line->numElements) {
	/* remove args up to -- */
	while (strcmp(line->elements[firstElement].item, "--"))
	removeElement(line, firstElement);
	/* remove -- */
	removeElement(line, firstElement);
	}
	}
	usedElements = calloc(line->numElements, sizeof(*usedElements));
	for (k = 0, arg = newArgs; *arg; arg++, k++) {
	doreplace = 1;
	for (i = firstElement; i < line->numElements; i++) {
	if (multibootArgs && cfg->cfi->mbConcatArgs &&
	!strcmp(line->elements[i].item, "--"))
	{
	/* reached the end of hyper args, insert here */
	doreplace = 0;
	break;
	}
	if (usedElements[i])
	continue;
	if (!argMatch(line->elements[i].item, *arg)) {
	usedElements[i]=1;
	break;
	}
	}
2856
2857	if (i < line->numElements && doreplace) {	int suseGrubConfGetInstallDevice(const char *path, char **devicePtr)
2858	/* direct replacement */	{
2859	free(line->elements[i].item);	FILE *grubConf;
2860	line->elements[i].item = strdup(*arg);	char *line = NULL;
2861		size_t res = 0, len = 0;
2862		char *lastParamPtr = NULL;
2863		char *secLastParamPtr = NULL;
2864		char installDeviceNumber = '\0';
2865		char *bounds = NULL;
2866
2867		if (!path)
2868		return 1;
2869		if (!devicePtr)
2870		return 1;
2871
2872		grubConf = fopen(path, "r");
2873		if (!grubConf)
2874		return 1;
2875
2876	} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {	while ((res = getline(&line, &len, grubConf)) != -1) {
2877	/* root= replacement */	if (strncmp(line, "setup", 5))
2878	rootLine = getLineByType(LT_ROOT, entry->lines);	continue;
2879	if (rootLine) {
2880	free(rootLine->elements[1].item);	if (line[res - 1] == '\n')
2881	rootLine->elements[1].item = strdup(*arg + 5);	line[res - 1] = '\0';
2882		else if (len > res)
2883		line[res] = '\0';
2884		else {
2885		line = realloc(line, res + 1);
2886		line[res] = '\0';
2887		}
2888
2889		lastParamPtr = bounds = line + res;
2890
2891		/* Last parameter in grub may be an optional IMAGE_DEVICE */
2892		while (!isspace(*lastParamPtr))
2893		lastParamPtr--;
2894		lastParamPtr++;
2895
2896		secLastParamPtr = lastParamPtr - 2;
2897		dbgPrintf("lastParamPtr: %s\n", lastParamPtr);
2898
2899		if (lastParamPtr + 3 > bounds) {
2900		dbgPrintf("lastParamPtr going over boundary");
2901		fclose(grubConf);
2902		free(line);
2903		return 1;
2904		}
2905		if (!strncmp(lastParamPtr, "(hd", 3))
2906		lastParamPtr += 3;
2907		dbgPrintf("lastParamPtr: %c\n", *lastParamPtr);
2908
2909		/*
2910		* Second last parameter will decide wether last parameter is
2911		* an IMAGE_DEVICE or INSTALL_DEVICE
2912		*/
2913		while (!isspace(*secLastParamPtr))
2914		secLastParamPtr--;
2915		secLastParamPtr++;
2916
2917		if (secLastParamPtr + 3 > bounds) {
2918		dbgPrintf("secLastParamPtr going over boundary");
2919		fclose(grubConf);
2920		free(line);
2921		return 1;
2922		}
2923		dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr);
2924		if (!strncmp(secLastParamPtr, "(hd", 3)) {
2925		secLastParamPtr += 3;
2926		dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr);
2927		installDeviceNumber = *secLastParamPtr;
2928	} else {	} else {
2929	rootLine = addLine(entry, cfg->cfi, LT_ROOT,	installDeviceNumber = *lastParamPtr;
	cfg->secondaryIndent, *arg + 5);
2930	}	}
	}
2931
2932	else {	*devicePtr = malloc(6);
2933	/* insert/append */	snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber);
2934	insertElement(line, *arg, i, cfg->cfi);	dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber);
2935	usedElements = realloc(usedElements, line->numElements *	fclose(grubConf);
2936	sizeof(*usedElements));	free(line);
2937	memmove(&usedElements[i + 1], &usedElements[i],	return 0;
	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);
2938	}	}
	}
	free(newArgs);
	free(oldArgs);
2939
2940	return 0;	free(line);
2941		fclose(grubConf);
2942		return 1;
2943	}	}
2944
2945	int updateImage(struct grubConfig * cfg, const char * image,	int grubGetBootFromDeviceMap(const char *device, char **bootPtr)
2946	const char * prefix, const char * addArgs,	{
2947	const char * removeArgs,	FILE *deviceMap;
2948	const char * addMBArgs, const char * removeMBArgs) {	char *line = NULL;
2949	int rc = 0;	size_t res = 0, len = 0;
2950		char *devicePtr;
2951	if (!image) return rc;	char *bounds = NULL;
2952		const char *path;
2953	/* update the main args first... */	const static char default_path[] = "/boot/grub/device.map";
2954	if (addArgs || removeArgs)
2955	rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0);	if (!device)
2956	if (rc) return rc;	return 1;
2957		if (!bootPtr)
	/* 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)
2958	return 1;	return 1;
	}
2959
2960	break;	if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL)
2961	}	path = default_path;
2962
2963	return 0;	dbgPrintf("opening grub device.map file from: %s\n", path);
2964	}	deviceMap = fopen(path, "r");
2965		if (!deviceMap)
2966		return 1;
2967
2968	int checkDeviceBootloader(const char * device, const unsigned char * boot) {	while ((res = getline(&line, &len, deviceMap)) != -1) {
2969	int fd;	if (!strncmp(line, "#", 1))
2970	unsigned char bootSect[512];	continue;
2971	int offset;
2972		if (line[res - 1] == '\n')
2973	fd = open(device, O_RDONLY);	line[res - 1] = '\0';
2974	if (fd < 0) {	else if (len > res)
2975	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	line[res] = '\0';
2976	device, strerror(errno));	else {
2977	return 1;	line = realloc(line, res + 1);
2978	}	line[res] = '\0';
2979		}
2980
2981	if (read(fd, bootSect, 512) != 512) {	devicePtr = line;
2982	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	bounds = line + res;
	device, strerror(errno));
	return 1;
	}
	close(fd);
2983
2984	/* first three bytes should match, a jmp short should be in there */	while ((isspace(*line) && ((devicePtr + 1) <= bounds)))
2985	if (memcmp(boot, bootSect, 3))	devicePtr++;
2986	return 0;	dbgPrintf("device: %s\n", devicePtr);
2987
2988		if (!strncmp(devicePtr, device, strlen(device))) {
2989		devicePtr += strlen(device);
2990		while (isspace(*devicePtr)
2991		&& ((devicePtr + 1) <= bounds))
2992		devicePtr++;
2993
2994	if (boot[1] == JMP_SHORT_OPCODE) {	*bootPtr = strdup(devicePtr);
2995	offset = boot[2] + 2;	break;
2996	} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {	}
2997	offset = (boot[3] << 8) + boot[2] + 2;	}
	} else if (boot[0] == JMP_SHORT_OPCODE) {
	offset = boot[1] + 2;
	/*
	* 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;
	}
2998
2999	if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))	free(line);
3000		fclose(deviceMap);
3001	return 0;	return 0;
	return 2;
3002	}	}
3003
3004	int checkLiloOnRaid(char * mdDev, const unsigned char * boot) {	int suseGrubConfGetBoot(const char *path, char **bootPtr)
3005	int fd;	{
3006	char buf[65536];	char *grubDevice;
	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 */
3007
3008	if (!strncmp(mdDev, "/dev/", 5))	if (suseGrubConfGetInstallDevice(path, &grubDevice))
3009	mdDev += 5;	dbgPrintf("error looking for grub installation device\n");
3010		else
3011		dbgPrintf("grubby installation device: %s\n", grubDevice);
3012
3013	if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {	if (grubGetBootFromDeviceMap(grubDevice, bootPtr))
3014	fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),	dbgPrintf("error looking for grub boot device\n");
3015	strerror(errno));	else
3016	return 2;	dbgPrintf("grubby boot device: %s\n", *bootPtr);
	}
3017
3018	rc = read(fd, buf, sizeof(buf) - 1);	free(grubDevice);
3019	if (rc < 0 || rc == (sizeof(buf) - 1)) {	return 0;
3020	fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),	}
	strerror(errno));
	close(fd);
	return 2;
	}
	close(fd);
	buf[rc] = '\0';
3021
3022	chptr = buf;	int parseSuseGrubConf(int *lbaPtr, char **bootPtr)
3023	while (*chptr) {	{
3024	end = strchr(chptr, '\n');	/*
3025	if (!end) break;	* This SuSE grub configuration file at this location is not your
3026	*end = '\0';	* average grub configuration file, but instead the grub commands
3027		* used to setup grub on that system.
3028		*/
3029		const char *path;
3030		const static char default_path[] = "/etc/grub.conf";
3031
3032	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&	if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL)
3033	chptr[strlen(mdDev)] == ' ') {	path = default_path;
3034
3035	/* found the device */	if (!isSuseGrubConf(path))
3036	while (*chptr && *chptr != ':') chptr++;	return 1;
	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++;
	}
3037
3038	/*  we're good to go */	if (lbaPtr) {
3039	return 2;	*lbaPtr = 0;
3040		if (suseGrubConfGetLba(path, lbaPtr))
3041		return 1;
3042	}	}
3043
3044	chptr = end + 1;	if (bootPtr) {
3045	}	*bootPtr = NULL;
3046		suseGrubConfGetBoot(path, bootPtr);
3047		}
3048
3049	fprintf(stderr,	return 0;
	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
	mdDev);
	return 0;
3050	}	}
3051
3052	int checkForLilo(struct grubConfig * config) {	int parseSysconfigGrub(int *lbaPtr, char **bootPtr)
3053	int fd;	{
3054	unsigned char boot[512];	FILE *in;
3055	struct singleLine * line;	char buf[1024];
3056		char *chptr;
3057	for (line = config->theLines; line; line = line->next)	char *start;
3058	if (line->type == LT_BOOT) break;	char *param;
	if (!line) {
	fprintf(stderr,
	_("grubby: no boot line found in lilo configuration\n"));
	return 1;
	}
3059
3060	if (line->numElements != 2) return 1;	in = fopen("/etc/sysconfig/grub", "r");
3061		if (!in)
3062		return 1;
3063
3064	fd = open("/boot/boot.b", O_RDONLY);	if (lbaPtr)
3065	if (fd < 0) {	*lbaPtr = 0;
3066	fprintf(stderr, _("grubby: unable to open %s: %s\n"),	if (bootPtr)
3067	"/boot/boot.b", strerror(errno));	*bootPtr = NULL;
3068	return 1;
3069	}	while (fgets(buf, sizeof(buf), in)) {
3070		start = buf;
3071		while (isspace(*start))
3072		start++;
3073		if (*start == '#')
3074		continue;
3075
3076		chptr = strchr(start, '=');
3077		if (!chptr)
3078		continue;
3079		chptr--;
3080		while (*chptr && isspace(*chptr))
3081		chptr--;
3082		chptr++;
3083		*chptr = '\0';
3084
3085		param = chptr + 1;
3086		while (*param && isspace(*param))
3087		param++;
3088		if (*param == '=') {
3089		param++;
3090		while (*param && isspace(*param))
3091		param++;
3092		}
3093
3094	if (read(fd, boot, 512) != 512) {	chptr = param;
3095	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while (*chptr && !isspace(*chptr))
3096	"/boot/boot.b", strerror(errno));	chptr++;
3097	return 1;	*chptr = '\0';
3098	}
3099	close(fd);	if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr)
3100		*lbaPtr = 1;
3101		else if (!strcmp(start, "boot") && bootPtr)
3102		*bootPtr = strdup(param);
3103		}
3104
3105	if (!strncmp("/dev/md", line->elements[1].item, 7))	fclose(in);
	return checkLiloOnRaid(line->elements[1].item, boot);
3106
3107	return checkDeviceBootloader(line->elements[1].item, boot);	return 0;
3108	}	}
3109
3110	int checkForGrub2(struct grubConfig * config) {	void dumpSysconfigGrub(void)
3111	if (!access("/etc/grub.d/", R_OK))	{
3112	return 2;	char *boot = NULL;
3113		int lba;
3114
3115		if (isSuseSystem()) {
3116		if (parseSuseGrubConf(&lba, &boot)) {
3117		free(boot);
3118		return;
3119		}
3120		} else {
3121		if (parseSysconfigGrub(&lba, &boot)) {
3122		free(boot);
3123		return;
3124		}
3125		}
3126
3127	return 1;	if (lba)
3128		printf("lba\n");
3129		if (boot) {
3130		printf("boot=%s\n", boot);
3131		free(boot);
3132		}
3133	}	}
3134
3135	int checkForGrub(struct grubConfig * config) {	int displayInfo(struct grubConfig *config, char *kernel, const char *prefix)
3136	int fd;	{
3137	unsigned char bootSect[512];	int i = 0;
3138	char * boot;	struct singleEntry *entry;
3139		struct singleLine *line;
3140
3141		entry = findEntryByPath(config, kernel, prefix, &i);
3142		if (!entry) {
3143		fprintf(stderr, _("grubby: kernel not found\n"));
3144		return 1;
3145		}
3146
3147	if (parseSysconfigGrub(NULL, &boot))	/* this is a horrible hack to support /etc/sysconfig/grub; there must
3148	return 0;	be a better way */
3149		if (config->cfi == &grubConfigType) {
3150		dumpSysconfigGrub();
3151		} else {
3152		line = getLineByType(LT_BOOT, config->theLines);
3153		if (line && line->numElements >= 1) {
3154		printf("boot=%s\n", line->elements[1].item);
3155		}
3156
3157	/* assume grub is not installed -- not an error condition */	line = getLineByType(LT_LBA, config->theLines);
3158	if (!boot)	if (line)
3159	return 0;	printf("lba\n");
3160		}
3161
3162	fd = open("/boot/grub/stage1", O_RDONLY);	displayEntry(entry, prefix, i);
	if (fd < 0)
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3163
3164	if (read(fd, bootSect, 512) != 512) {	i++;
3165	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	while ((entry = findEntryByPath(config, kernel, prefix, &i))) {
3166	"/boot/grub/stage1", strerror(errno));	displayEntry(entry, prefix, i);
3167	close(fd);	i++;
3168	return 1;	}
	}
	close(fd);
3169
3170	return checkDeviceBootloader(boot, bootSect);	return 0;
3171	}	}
3172
3173	int checkForExtLinux(struct grubConfig * config) {	struct singleLine *addLineTmpl(struct singleEntry *entry,
3174	int fd;	struct singleLine *tmplLine,
3175	unsigned char bootSect[512];	struct singleLine *prevLine,
3176	char * boot;	const char *val, struct configFileInfo *cfi)
3177	char executable[] = "/boot/extlinux/extlinux";	{
3178		struct singleLine *newLine = lineDup(tmplLine);
	printf("entered: checkForExtLinux()\n");
3179
3180	if (parseSysconfigGrub(NULL, &boot))	if (isEfi && cfi == &grub2ConfigType) {
3181	return 0;	enum lineType_e old = newLine->type;
3182		newLine->type = preferredLineType(newLine->type, cfi);
3183		if (old != newLine->type)
3184		newLine->elements[0].item =
3185		getKeyByType(newLine->type, cfi);
3186		}
3187
3188	/* assume grub is not installed -- not an error condition */	if (val) {
3189	if (!boot)	/* override the inherited value with our own.
3190	return 0;	* This is a little weak because it only applies to elements[1]
3191		*/
3192		if (newLine->numElements > 1)
3193		removeElement(newLine, 1);
3194		insertElement(newLine, val, 1, cfi);
3195
3196		/* but try to keep the rootspec from the template... sigh */
3197		if (tmplLine->
3198		type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD |
3199		LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 |
3200		LT_INITRD_16)) {
3201		char *rootspec =
3202		getRootSpecifier(tmplLine->elements[1].item);
3203		if (rootspec != NULL) {
3204		free(newLine->elements[1].item);
3205		newLine->elements[1].item =
3206		sdupprintf("%s%s", rootspec, val);
3207		}
3208		}
3209		}
3210
3211	fd = open(executable, O_RDONLY);	dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ?
3212	if (fd < 0)	newLine->elements[0].item : "");
	/* this doesn't exist if grub hasn't been installed */
	return 0;
3213
3214	if (read(fd, bootSect, 512) != 512) {	if (!entry->lines) {
3215	fprintf(stderr, _("grubby: unable to read %s: %s\n"),	/* first one on the list */
3216	executable, strerror(errno));	entry->lines = newLine;
3217	return 1;	} else if (prevLine) {
3218	}	/* add after prevLine */
3219	close(fd);	newLine->next = prevLine->next;
3220		prevLine->next = newLine;
3221		}
3222
3223	return checkDeviceBootloader(boot, bootSect);	return newLine;
3224	}	}
3225
3226	static char * getRootSpecifier(char * str) {	/* val may be NULL */
3227	char * idx, * rootspec = NULL;	struct singleLine *addLine(struct singleEntry *entry,
3228		struct configFileInfo *cfi,
3229		enum lineType_e type, char *defaultIndent,
3230		const char *val)
3231		{
3232		struct singleLine *line, *prev;
3233		struct keywordTypes *kw;
3234		struct singleLine tmpl;
3235
3236		/* NB: This function shouldn't allocate items on the heap, rather on
3237		* the stack since it calls addLineTmpl which will make copies.
3238		*/
3239		if (type == LT_TITLE && cfi->titleBracketed) {
3240		/* we're doing a bracketed title (zipl) */
3241		tmpl.type = type;
3242		tmpl.numElements = 1;
3243		tmpl.elements = alloca(sizeof(*tmpl.elements));
3244		tmpl.elements[0].item = alloca(strlen(val) + 3);
3245		sprintf(tmpl.elements[0].item, "[%s]", val);
3246		tmpl.elements[0].indent = "";
3247		val = NULL;
3248		} else if (type == LT_MENUENTRY) {
3249		char *lineend = "--class gnu-linux --class gnu --class os {";
3250		if (!val) {
3251		fprintf(stderr,
3252		"Line type LT_MENUENTRY requires a value\n");
3253		abort();
3254		}
3255		kw = getKeywordByType(type, cfi);
3256		if (!kw) {
3257		fprintf(stderr,
3258		"Looking up keyword for unknown type %d\n",
3259		type);
3260		abort();
3261		}
3262		tmpl.indent = "";
3263		tmpl.type = type;
3264		tmpl.numElements = 3;
3265		tmpl.elements =
3266		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3267		tmpl.elements[0].item = kw->key;
3268		tmpl.elements[0].indent = alloca(2);
3269		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3270		tmpl.elements[1].item = (char *)val;
3271		tmpl.elements[1].indent = alloca(2);
3272		sprintf(tmpl.elements[1].indent, "%c", kw->nextChar);
3273		tmpl.elements[2].item = alloca(strlen(lineend) + 1);
3274		strcpy(tmpl.elements[2].item, lineend);
3275		tmpl.elements[2].indent = "";
3276		} else {
3277		kw = getKeywordByType(type, cfi);
3278		if (!kw) {
3279		fprintf(stderr,
3280		"Looking up keyword for unknown type %d\n",
3281		type);
3282		abort();
3283		}
3284		tmpl.type = type;
3285		tmpl.numElements = val ? 2 : 1;
3286		tmpl.elements =
3287		alloca(sizeof(*tmpl.elements) * tmpl.numElements);
3288		tmpl.elements[0].item = kw->key;
3289		tmpl.elements[0].indent = alloca(2);
3290		sprintf(tmpl.elements[0].indent, "%c", kw->nextChar);
3291		if (val) {
3292		tmpl.elements[1].item = (char *)val;
3293		tmpl.elements[1].indent = "";
3294		}
3295		}
3296
3297		/* The last non-empty line gives us the indention to us and the line
3298		* to insert after. Note that comments are considered empty lines,
3299		* which may not be ideal? If there are no lines or we are looking at
3300		* the first line, we use defaultIndent (the first line is normally
3301		* indented differently from the rest) */
3302		for (line = entry->lines, prev = NULL; line; line = line->next) {
3303		if (line->numElements)
3304		prev = line;
3305		/* fall back on the last line if prev isn't otherwise set */
3306		if (!line->next && !prev)
3307		prev = line;
3308		}
3309
3310		struct singleLine *menuEntry;
3311		menuEntry = getLineByType(LT_MENUENTRY, entry->lines);
3312		if (tmpl.type == LT_ENTRY_END) {
3313		if (menuEntry)
3314		tmpl.indent = menuEntry->indent;
3315		else
3316		tmpl.indent = defaultIndent ? : "";
3317		} else if (tmpl.type != LT_MENUENTRY) {
3318		if (menuEntry)
3319		tmpl.indent = "\t";
3320		else if (prev == entry->lines)
3321		tmpl.indent = defaultIndent ? : "";
3322		else
3323		tmpl.indent = prev->indent;
3324		}
3325
3326	if (*str == '(') {	return addLineTmpl(entry, &tmpl, prev, val, cfi);
	idx = rootspec = strdup(str);
	while(*idx && (*idx != ')') && (!isspace(*idx))) idx++;
	*(++idx) = '\0';
	}
	return rootspec;
3327	}	}
3328
3329	static char * getInitrdVal(struct grubConfig * config,	void removeLine(struct singleEntry *entry, struct singleLine *line)
3330	const char * prefix, struct singleLine *tmplLine,	{
3331	const char * newKernelInitrd,	struct singleLine *prev;
3332	char ** extraInitrds, int extraInitrdCount)	int i;
3333	{
3334	char *initrdVal, *end;	for (i = 0; i < line->numElements; i++) {
3335	int i;	free(line->elements[i].item);
3336	size_t totalSize;	free(line->elements[i].indent);
3337	size_t prefixLen;	}
3338	char separatorChar;	free(line->elements);
3339		free(line->indent);
	prefixLen = strlen(prefix);
	totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */;
	for (i = 0; i < extraInitrdCount; i++) {
	totalSize += sizeof(separatorChar);
	totalSize += strlen(extraInitrds[i]) - prefixLen;
	}
3340
3341	initrdVal = end = malloc(totalSize);	if (line == entry->lines) {
3342		entry->lines = line->next;
3343		} else {
3344		prev = entry->lines;
3345		while (prev->next != line)
3346		prev = prev->next;
3347		prev->next = line->next;
3348		}
3349
3350	end = stpcpy (end, newKernelInitrd + prefixLen);	free(line);
3351		}
3352
3353	separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;	static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi)
3354	for (i = 0; i < extraInitrdCount; i++) {	{
3355	const char *extraInitrd;	struct singleLine newLine = {
3356		.indent = tmplLine->indent,
3357		.type = tmplLine->type,
3358		.next = tmplLine->next,
3359		};
3360		int firstQuotedItem = -1;
3361		int quoteLen = 0;
3362	int j;	int j;
3363		int element = 0;
3364		char *c;
3365
3366	extraInitrd = extraInitrds[i] + prefixLen;	c = malloc(strlen(tmplLine->elements[0].item) + 1);
3367	/* Don't add entries that are already there */	strcpy(c, tmplLine->elements[0].item);
3368	if (tmplLine != NULL) {	insertElement(&newLine, c, element++, cfi);
3369	for (j = 2; j < tmplLine->numElements; j++)	free(c);
3370	if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0)	c = NULL;
3371	break;
3372		for (j = 1; j < tmplLine->numElements; j++) {
3373		if (firstQuotedItem == -1) {
3374		quoteLen += strlen(tmplLine->elements[j].item);
3375
3376		if (isquote(tmplLine->elements[j].item[0])) {
3377		firstQuotedItem = j;
3378		quoteLen +=
3379		strlen(tmplLine->elements[j].indent);
3380		} else {
3381		c = malloc(quoteLen + 1);
3382		strcpy(c, tmplLine->elements[j].item);
3383		insertElement(&newLine, c, element++, cfi);
3384		free(c);
3385		quoteLen = 0;
3386		}
3387		} else {
3388		int itemlen = strlen(tmplLine->elements[j].item);
3389		quoteLen += itemlen;
3390		quoteLen += strlen(tmplLine->elements[j].indent);
3391
3392		if (isquote(tmplLine->elements[j].item[itemlen - 1])) {
3393		c = malloc(quoteLen + 1);
3394		c[0] = '\0';
3395		for (int i = firstQuotedItem; i < j + 1; i++) {
3396		strcat(c, tmplLine->elements[i].item);
3397		strcat(c, tmplLine->elements[i].indent);
3398		}
3399		insertElement(&newLine, c, element++, cfi);
3400		free(c);
3401
3402	if (j != tmplLine->numElements)	firstQuotedItem = -1;
3403	continue;	quoteLen = 0;
3404		}
3405		}
3406	}	}
3407		while (tmplLine->numElements)
3408		removeElement(tmplLine, 0);
3409		if (tmplLine->elements)
3410		free(tmplLine->elements);
3411
3412		tmplLine->numElements = newLine.numElements;
3413		tmplLine->elements = newLine.elements;
3414		}
3415
3416	*end++ = separatorChar;	static void insertElement(struct singleLine *line,
3417	end = stpcpy(end, extraInitrd);	const char *item, int insertHere,
3418	}	struct configFileInfo *cfi)
3419		{
3420		struct keywordTypes *kw;
3421		char indent[2] = "";
3422
3423		/* sanity check */
3424		if (insertHere > line->numElements) {
3425		dbgPrintf
3426		("insertElement() adjusting insertHere from %d to %d\n",
3427		insertHere, line->numElements);
3428		insertHere = line->numElements;
3429		}
3430
3431		line->elements = realloc(line->elements, (line->numElements + 1) *
3432		sizeof(*line->elements));
3433		memmove(&line->elements[insertHere + 1],
3434		&line->elements[insertHere],
3435		(line->numElements - insertHere) * sizeof(*line->elements));
3436		line->elements[insertHere].item = strdup(item);
3437
3438		kw = getKeywordByType(line->type, cfi);
3439
3440		if (line->numElements == 0) {
3441		indent[0] = '\0';
3442		} else if (insertHere == 0) {
3443		indent[0] = kw->nextChar;
3444		} else if (kw->separatorChar != '\0') {
3445		indent[0] = kw->separatorChar;
3446		} else {
3447		indent[0] = ' ';
3448		}
3449
3450		if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') {
3451		/* move the end-of-line forward */
3452		line->elements[insertHere].indent =
3453		line->elements[insertHere - 1].indent;
3454		line->elements[insertHere - 1].indent = strdup(indent);
3455		} else {
3456		line->elements[insertHere].indent = strdup(indent);
3457		}
3458
3459	return initrdVal;	line->numElements++;
3460
3461		dbgPrintf("insertElement(%s, '%s%s', %d)\n",
3462		line->elements[0].item,
3463		line->elements[insertHere].item,
3464		line->elements[insertHere].indent, insertHere);
3465	}	}
3466
3467	int addNewKernel(struct grubConfig * config, struct singleEntry * template,	static void removeElement(struct singleLine *line, int removeHere)
3468	const char * prefix,	{
3469	char * newKernelPath, char * newKernelTitle,	int i;
	char * newKernelArgs, char * newKernelInitrd,
	char ** extraInitrds, int extraInitrdCount,
	char * newMBKernel, char * newMBKernelArgs) {
	struct singleEntry * new;
	struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL;
	int needs;
	char * chptr;
	if (!newKernelPath) return 0;
	/* if the newKernelTitle is too long silently munge it into something
	* we can live with. truncating is first check, then we'll just mess with
	* it until it looks better */
	if (config->cfi->maxTitleLength &&
	(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
	char * buf = alloca(config->cfi->maxTitleLength + 7);
	char * numBuf = alloca(config->cfi->maxTitleLength + 1);
	int i = 1;
3470
3471	sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle);	/* sanity check */
3472	while (findEntryByPath(config, buf, NULL, NULL)) {	if (removeHere >= line->numElements)
3473	sprintf(numBuf, "%d", i++);	return;
3474	strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
3475		dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item,
3476		removeHere, line->elements[removeHere].item);
3477
3478		free(line->elements[removeHere].item);
3479
3480		if (removeHere > 1) {
3481		/* previous argument gets this argument's post-indentation */
3482		free(line->elements[removeHere - 1].indent);
3483		line->elements[removeHere - 1].indent =
3484		line->elements[removeHere].indent;
3485		} else {
3486		free(line->elements[removeHere].indent);
3487	}	}
3488
3489	newKernelTitle = buf + 6;	/* now collapse the array, but don't bother to realloc smaller */
3490	}	for (i = removeHere; i < line->numElements - 1; i++)
3491		line->elements[i] = line->elements[i + 1];
3492
3493	new = malloc(sizeof(*new));	line->numElements--;
3494	new->skip = 0;	}
	new->multiboot = 0;
	new->next = config->entries;
	new->lines = NULL;
	config->entries = new;
	/* copy/update from the template */
	needs = NEED_KERNEL | NEED_TITLE;
	if (newKernelInitrd)
	needs |= NEED_INITRD;
	if (newMBKernel) {
	needs |= NEED_MB;
	new->multiboot = 1;
	}
3495
3496	if (template) {	int argMatch(const char *one, const char *two)
3497	for (masterLine = template->lines;	{
3498	masterLine && (tmplLine = lineDup(masterLine));	char *first, *second;
3499	lineFree(tmplLine), masterLine = masterLine->next)	char *chptr;
	{
	dbgPrintf("addNewKernel processing %d\n", tmplLine->type);
	/* skip comments */
	chptr = tmplLine->indent;
	while (*chptr && isspace(*chptr)) chptr++;
	if (*chptr == '#') continue;
	if (tmplLine->type == LT_KERNEL &&
	tmplLine->numElements >= 2) {
	if (!template->multiboot && (needs & NEED_MB)) {
	/* it's not a multiboot template and this is the kernel
	* line.  Try to be intelligent about inserting the
	* hypervisor at the same time.
	*/
	if (config->cfi->mbHyperFirst) {
	/* insert the hypervisor first */
	newLine = addLine(new, config->cfi, LT_HYPER,
	tmplLine->indent,
	newMBKernel + strlen(prefix));
	/* set up for adding the kernel line */
	free(tmplLine->indent);
	tmplLine->indent = strdup(config->secondaryIndent);
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	/* use addLineTmpl to preserve line elements,
	* otherwise we could just call addLine.  Unfortunately
	* this means making some changes to the template
	* such as the indent change above and the type
	* change below.
	*/
	struct keywordTypes * mbm_kw =
	getKeywordByType(LT_MBMODULE, config->cfi);
	if (mbm_kw) {
	tmplLine->type = LT_MBMODULE;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item = strdup(mbm_kw->key);
	}
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) { /* !mbHyperFirst */
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	} else if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	}
	} else if (tmplLine->type == LT_HYPER &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_MB) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newMBKernel + strlen(prefix), config->cfi);
	needs &= ~NEED_MB;
	}
	} else if (tmplLine->type == LT_MBMODULE &&
	tmplLine->numElements >= 2) {
	if (new->multiboot) {
	if (needs & NEED_KERNEL) {
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath +
	strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (config->cfi->mbInitRdIsModule &&
	(needs & NEED_INITRD)) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine,
	newKernelInitrd, extraInitrds,
	extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine,
	initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_KERNEL) {
	/* template is multi but new is not,
	* insert the kernel in the first module slot
	*/
	tmplLine->type = LT_KERNEL;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_KERNEL, config->cfi)->key);
	newLine = addLineTmpl(new, tmplLine, newLine,
	newKernelPath + strlen(prefix), config->cfi);
	needs &= ~NEED_KERNEL;
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	/* template is multi but new is not,
	* insert the initrd in the second module slot
	*/
	tmplLine->type = LT_INITRD;
	free(tmplLine->elements[0].item);
	tmplLine->elements[0].item =
	strdup(getKeywordByType(LT_INITRD, config->cfi)->key);
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_INITRD &&
	tmplLine->numElements >= 2) {
	if (needs & NEED_INITRD &&
	new->multiboot && !template->multiboot &&
	config->cfi->mbInitRdIsModule) {
	/* make sure we don't insert the module initrd
	* before the module kernel... if we don't do it here,
	* it will be inserted following the template.
	*/
	if (!needs & NEED_KERNEL) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi, LT_MBMODULE,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	} else if (tmplLine->type == LT_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);
	}
	}
3500
3501	} else {	first = strcpy(alloca(strlen(one) + 1), one);
3502	/* don't have a template, so start the entry with the	second = strcpy(alloca(strlen(two) + 1), two);
	* appropriate starting line
	*/
	switch (config->cfi->entryStart) {
	case LT_KERNEL:
	if (new->multiboot && config->cfi->mbHyperFirst) {
	/* fall through to LT_HYPER */
	} else {
	newLine = addLine(new, config->cfi, LT_KERNEL,
	config->primaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	break;
	}
3503
3504	case LT_HYPER:	chptr = strchr(first, '=');
3505	newLine = addLine(new, config->cfi, LT_HYPER,	if (chptr)
3506	config->primaryIndent,	*chptr = '\0';
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	break;
3507
3508	case LT_MENUENTRY: {	chptr = strchr(second, '=');
3509	char *nkt = malloc(strlen(newKernelTitle)+3);	if (chptr)
3510	strcpy(nkt, "'");	*chptr = '\0';
3511	strcat(nkt, newKernelTitle);
3512	strcat(nkt, "'");	return strcmp(first, second);
3513	newLine = addLine(new, config->cfi, LT_MENUENTRY,	}
3514	config->primaryIndent, nkt);
3515	free(nkt);	int updateActualImage(struct grubConfig *cfg, const char *image,
3516	needs &= ~NEED_TITLE;	const char *prefix, const char *addArgs,
3517	needs |= NEED_END;	const char *removeArgs, int multibootArgs)
3518	break;	{
3519	}	struct singleEntry *entry;
3520	case LT_TITLE:	struct singleLine *line, *rootLine;
3521	if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above)	int index = 0;
3522	char * templabel;	int i, k;
3523	int x = 0, y = 0;	const char **newArgs, **oldArgs;
3524		const char **arg;
3525	templabel = strdup(newKernelTitle);	int useKernelArgs, useRoot;
3526	while( templabel[x]){	int firstElement;
3527	if( templabel[x] == ' ' ){	int *usedElements;
3528	y = x;	int doreplace;
3529	while( templabel[y] ){
3530	templabel[y] = templabel[y+1];	if (!image)
3531	y++;	return 0;
3532	}
3533		if (!addArgs) {
3534		newArgs = malloc(sizeof(*newArgs));
3535		*newArgs = NULL;
3536		} else {
3537		if (poptParseArgvString(addArgs, NULL, &newArgs)) {
3538		fprintf(stderr,
3539		_("grubby: error separating arguments '%s'\n"),
3540		addArgs);
3541		return 1;
3542		}
3543		}
3544
3545		if (!removeArgs) {
3546		oldArgs = malloc(sizeof(*oldArgs));
3547		*oldArgs = NULL;
3548		} else {
3549		if (poptParseArgvString(removeArgs, NULL, &oldArgs)) {
3550		fprintf(stderr,
3551		_("grubby: error separating arguments '%s'\n"),
3552		removeArgs);
3553		free(newArgs);
3554		return 1;
3555		}
3556		}
3557
3558		useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi)
3559		&& (!multibootArgs || cfg->cfi->mbConcatArgs));
3560
3561		useRoot = (getKeywordByType(LT_ROOT, cfg->cfi)
3562		&& !multibootArgs);
3563
3564		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3565
3566		if (multibootArgs && !entry->multiboot)
3567		continue;
3568
3569		/* Determine where to put the args.  If this config supports
3570		* LT_KERNELARGS, use that.  Otherwise use
3571		* LT_HYPER/LT_KERNEL/LT_MBMODULE lines.
3572		*/
3573		if (useKernelArgs) {
3574		line = getLineByType(LT_KERNELARGS, entry->lines);
3575		if (!line) {
3576		/* no LT_KERNELARGS, need to add it */
3577		line = addLine(entry, cfg->cfi, LT_KERNELARGS,
3578		cfg->secondaryIndent, NULL);
3579		}
3580		firstElement = 1;
3581
3582		} else if (multibootArgs) {
3583		line = getLineByType(LT_HYPER, entry->lines);
3584		if (!line) {
3585		/* a multiboot entry without LT_HYPER? */
3586		continue;
3587		}
3588		firstElement = 2;
3589
3590		} else {
3591		line =
3592		getLineByType(LT_KERNEL | LT_MBMODULE |
3593		LT_KERNEL_EFI | LT_KERNEL_16,
3594		entry->lines);
3595		if (!line) {
3596		/* no LT_KERNEL or LT_MBMODULE in this entry? */
3597		continue;
3598		}
3599		firstElement = 2;
3600		}
3601
3602		/* handle the elilo case which does:
3603		*   append="hypervisor args -- kernel args"
3604		*/
3605		if (entry->multiboot && cfg->cfi->mbConcatArgs) {
3606		/* this is a multiboot entry, make sure there's
3607		* -- on the args line
3608		*/
3609		for (i = firstElement; i < line->numElements; i++) {
3610		if (!strcmp(line->elements[i].item, "--"))
3611		break;
3612		}
3613		if (i == line->numElements) {
3614		/* assume all existing args are kernel args,
3615		* prepend -- to make it official
3616		*/
3617		insertElement(line, "--", firstElement,
3618		cfg->cfi);
3619		i = firstElement;
3620		}
3621		if (!multibootArgs) {
3622		/* kernel args start after the -- */
3623		firstElement = i + 1;
3624		}
3625		} else if (cfg->cfi->mbConcatArgs) {
3626		/* this is a non-multiboot entry, remove hyper args */
3627		for (i = firstElement; i < line->numElements; i++) {
3628		if (!strcmp(line->elements[i].item, "--"))
3629		break;
3630		}
3631		if (i < line->numElements) {
3632		/* remove args up to -- */
3633		while (strcmp
3634		(line->elements[firstElement].item,
3635		"--"))
3636		removeElement(line, firstElement);
3637		/* remove -- */
3638		removeElement(line, firstElement);
3639		}
3640		}
3641
3642		usedElements = calloc(line->numElements, sizeof(*usedElements));
3643
3644		for (k = 0, arg = newArgs; *arg; arg++, k++) {
3645
3646		doreplace = 1;
3647		for (i = firstElement; i < line->numElements; i++) {
3648		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3649		!strcmp(line->elements[i].item, "--")) {
3650		/* reached the end of hyper args, insert here */
3651		doreplace = 0;
3652		break;
3653		}
3654		if (usedElements[i])
3655		continue;
3656		if (!argMatch(line->elements[i].item, *arg)) {
3657		usedElements[i] = 1;
3658		break;
3659		}
3660		}
3661
3662		if (i < line->numElements && doreplace) {
3663		/* direct replacement */
3664		free(line->elements[i].item);
3665		line->elements[i].item = strdup(*arg);
3666
3667		} else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) {
3668		/* root= replacement */
3669		rootLine = getLineByType(LT_ROOT, entry->lines);
3670		if (rootLine) {
3671		free(rootLine->elements[1].item);
3672		rootLine->elements[1].item =
3673		strdup(*arg + 5);
3674		} else {
3675		rootLine =
3676		addLine(entry, cfg->cfi, LT_ROOT,
3677		cfg->secondaryIndent,
3678		*arg + 5);
3679		}
3680		}
3681
3682		else {
3683		/* insert/append */
3684		insertElement(line, *arg, i, cfg->cfi);
3685		usedElements =
3686		realloc(usedElements,
3687		line->numElements *
3688		sizeof(*usedElements));
3689		memmove(&usedElements[i + 1], &usedElements[i],
3690		line->numElements - i - 1);
3691		usedElements[i] = 1;
3692
3693		/* if we updated a root= here even though
3694		* there is a LT_ROOT available we need to
3695		* remove the LT_ROOT entry (this will happen
3696		* if we switch from a device to a label) */
3697		if (useRoot && !strncmp(*arg, "root=", 5)) {
3698		rootLine =
3699		getLineByType(LT_ROOT,
3700		entry->lines);
3701		if (rootLine)
3702		removeLine(entry, rootLine);
3703	}	}
	x++;
3704	}	}
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, templabel);
	free(templabel);
	}else{
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->primaryIndent, newKernelTitle);
3705	}	}
3706	needs &= ~NEED_TITLE;
3707		free(usedElements);
3708
3709		for (arg = oldArgs; *arg; arg++) {
3710		for (i = firstElement; i < line->numElements; i++) {
3711		if (multibootArgs && cfg->cfi->mbConcatArgs &&
3712		!strcmp(line->elements[i].item, "--"))
3713		/* reached the end of hyper args, stop here */
3714		break;
3715		if (!argMatch(line->elements[i].item, *arg)) {
3716		removeElement(line, i);
3717		break;
3718		}
3719		}
3720		/* handle removing LT_ROOT line too */
3721		if (useRoot && !strncmp(*arg, "root=", 5)) {
3722		rootLine = getLineByType(LT_ROOT, entry->lines);
3723		if (rootLine)
3724		removeLine(entry, rootLine);
3725		}
3726		}
3727
3728		if (line->numElements == 1) {
3729		/* don't need the line at all (note it has to be a
3730		LT_KERNELARGS for this to happen */
3731		removeLine(entry, line);
3732		}
3733		}
3734
3735		free(newArgs);
3736		free(oldArgs);
3737
3738		return 0;
3739		}
3740
3741		int updateImage(struct grubConfig *cfg, const char *image,
3742		const char *prefix, const char *addArgs,
3743		const char *removeArgs,
3744		const char *addMBArgs, const char *removeMBArgs)
3745		{
3746		int rc = 0;
3747
3748		if (!image)
3749		return rc;
3750
3751		/* update the main args first... */
3752		if (addArgs || removeArgs)
3753		rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs,
3754		0);
3755		if (rc)
3756		return rc;
3757
3758		/* and now any multiboot args */
3759		if (addMBArgs || removeMBArgs)
3760		rc = updateActualImage(cfg, image, prefix, addMBArgs,
3761		removeMBArgs, 1);
3762		return rc;
3763		}
3764
3765		int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel,
3766		const char *image, const char *prefix, const char *initrd,
3767		const char *title)
3768		{
3769		struct singleEntry *entry;
3770		struct singleLine *line, *kernelLine, *endLine = NULL;
3771		int index = 0;
3772
3773		if (!image)
3774		return 0;
3775
3776		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3777		kernelLine = getLineByType(LT_MBMODULE, entry->lines);
3778		if (!kernelLine)
3779		continue;
3780
3781		/* if title is supplied, the entry's title must match it. */
3782		if (title) {
3783		char *linetitle;
3784
3785		line =
3786		getLineByType(LT_TITLE | LT_MENUENTRY,
3787		entry->lines);
3788		if (!line)
3789		continue;
3790
3791		linetitle = extractTitle(cfg, line);
3792		if (!linetitle)
3793		continue;
3794		if (strcmp(title, linetitle)) {
3795		free(linetitle);
3796		continue;
3797		}
3798		free(linetitle);
3799		}
3800
3801		if (prefix) {
3802		int prefixLen = strlen(prefix);
3803		if (!strncmp(initrd, prefix, prefixLen))
3804		initrd += prefixLen;
3805		}
3806		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3807		if (endLine)
3808		removeLine(entry, endLine);
3809		line =
3810		addLine(entry, cfg->cfi,
3811		preferredLineType(LT_MBMODULE, cfg->cfi),
3812		kernelLine->indent, initrd);
3813		if (!line)
3814		return 1;
3815		if (endLine) {
3816		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3817		if (!line)
3818		return 1;
3819		}
3820
3821	break;	break;
3822		}
3823
3824	default:	return 0;
3825	abort();	}
3826
3827		int updateInitrd(struct grubConfig *cfg, const char *image,
3828		const char *prefix, const char *initrd, const char *title)
3829		{
3830		struct singleEntry *entry;
3831		struct singleLine *line, *kernelLine, *endLine = NULL;
3832		int index = 0;
3833
3834		if (!image)
3835		return 0;
3836
3837		for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) {
3838		kernelLine =
3839		getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16,
3840		entry->lines);
3841		if (!kernelLine)
3842		continue;
3843
3844		/* if title is supplied, the entry's title must match it. */
3845		if (title) {
3846		char *linetitle;
3847
3848		line =
3849		getLineByType(LT_TITLE | LT_MENUENTRY,
3850		entry->lines);
3851		if (!line)
3852		continue;
3853
3854		linetitle = extractTitle(cfg, line);
3855		if (!linetitle)
3856		continue;
3857		if (strcmp(title, linetitle)) {
3858		free(linetitle);
3859		continue;
3860		}
3861		free(linetitle);
3862		}
3863
3864		line =
3865		getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16,
3866		entry->lines);
3867		if (line)
3868		removeLine(entry, line);
3869		if (prefix) {
3870		int prefixLen = strlen(prefix);
3871		if (!strncmp(initrd, prefix, prefixLen))
3872		initrd += prefixLen;
3873		}
3874		endLine = getLineByType(LT_ENTRY_END, entry->lines);
3875		if (endLine)
3876		removeLine(entry, endLine);
3877		enum lineType_e lt;
3878		switch (kernelLine->type) {
3879		case LT_KERNEL:
3880		lt = LT_INITRD;
3881		break;
3882		case LT_KERNEL_EFI:
3883		lt = LT_INITRD_EFI;
3884		break;
3885		case LT_KERNEL_16:
3886		lt = LT_INITRD_16;
3887		break;
3888		default:
3889		lt = preferredLineType(LT_INITRD, cfg->cfi);
3890		}
3891		line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd);
3892		if (!line)
3893		return 1;
3894		if (endLine) {
3895		line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL);
3896		if (!line)
3897		return 1;
3898		}
3899
3900		break;
3901	}	}
	}
3902
3903	/* add the remainder of the lines, i.e. those that either	return 0;
3904	* weren't present in the template, or in the case of no template,	}
	* all the lines following the entryStart.
	*/
	if (needs & NEED_TITLE) {
	newLine = addLine(new, config->cfi, LT_TITLE,
	config->secondaryIndent,
	newKernelTitle);
	needs &= ~NEED_TITLE;
	}
	if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_KERNEL) {
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_KERNEL,
	config->secondaryIndent,
	newKernelPath + strlen(prefix));
	needs &= ~NEED_KERNEL;
	}
	if (needs & NEED_MB) {
	newLine = addLine(new, config->cfi, LT_HYPER,
	config->secondaryIndent,
	newMBKernel + strlen(prefix));
	needs &= ~NEED_MB;
	}
	if (needs & NEED_INITRD) {
	char *initrdVal;
	initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount);
	newLine = addLine(new, config->cfi,
	(new->multiboot && getKeywordByType(LT_MBMODULE,
	config->cfi)) ?
	LT_MBMODULE : LT_INITRD,
	config->secondaryIndent,
	initrdVal);
	free(initrdVal);
	needs &= ~NEED_INITRD;
	}
	if (needs & NEED_END) {
	newLine = addLine(new, config->cfi, LT_ENTRY_END,
	config->secondaryIndent, NULL);
	needs &= ~NEED_END;
	}
3905
3906	if (needs) {	int checkDeviceBootloader(const char *device, const unsigned char *boot)
3907	printf(_("grubby: needs=%d, aborting\n"), needs);	{
3908	abort();	int fd;
3909	}	unsigned char bootSect[512];
3910		int offset;
3911
3912		fd = open(device, O_RDONLY);
3913		if (fd < 0) {
3914		fprintf(stderr, _("grubby: unable to open %s: %s\n"),
3915		device, strerror(errno));
3916		return 1;
3917		}
3918
3919		if (read(fd, bootSect, 512) != 512) {
3920		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
3921		device, strerror(errno));
3922		return 1;
3923		}
3924		close(fd);
3925
3926	if (updateImage(config, "0", prefix, newKernelArgs, NULL,	/* first three bytes should match, a jmp short should be in there */
3927	newMBKernelArgs, NULL)) return 1;	if (memcmp(boot, bootSect, 3))
3928		return 0;
3929
3930	return 0;	if (boot[1] == JMP_SHORT_OPCODE) {
3931		offset = boot[2] + 2;
3932		} else if (boot[1] == 0xe8 || boot[1] == 0xe9) {
3933		offset = (boot[3] << 8) + boot[2] + 2;
3934		} else if (boot[0] == JMP_SHORT_OPCODE) {
3935		offset = boot[1] + 2;
3936		/*
3937		* it looks like grub, when copying stage1 into the mbr,
3938		* patches stage1 right after the JMP location, replacing
3939		* other instructions such as JMPs for NOOPs. So, relax the
3940		* check a little bit by skipping those different bytes.
3941		*/
3942		if ((bootSect[offset + 1] == NOOP_OPCODE)
3943		&& (bootSect[offset + 2] == NOOP_OPCODE)) {
3944		offset = offset + 3;
3945		}
3946		} else if (boot[0] == 0xe8 || boot[0] == 0xe9) {
3947		offset = (boot[2] << 8) + boot[1] + 2;
3948		} else {
3949		return 0;
3950		}
3951
3952		if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE))
3953		return 0;
3954
3955		return 2;
3956	}	}
3957
3958	static void traceback(int signum)	int checkLiloOnRaid(char *mdDev, const unsigned char *boot)
3959	{	{
3960	void *array[40];	int fd;
3961	size_t size;	char buf[65536];
3962		char *end;
3963		char *chptr;
3964		char *chptr2;
3965		int rc;
3966
3967		/* it's on raid; we need to parse /proc/mdstat and check all of the
3968		*raw* devices listed in there */
3969
3970		if (!strncmp(mdDev, "/dev/", 5))
3971		mdDev += 5;
3972
3973		if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) {
3974		fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"),
3975		strerror(errno));
3976		return 2;
3977		}
3978
3979		rc = read(fd, buf, sizeof(buf) - 1);
3980		if (rc < 0 || rc == (sizeof(buf) - 1)) {
3981		fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"),
3982		strerror(errno));
3983		close(fd);
3984		return 2;
3985		}
3986		close(fd);
3987		buf[rc] = '\0';
3988
3989	signal(SIGSEGV, SIG_DFL);	chptr = buf;
3990	memset(array, '\0', sizeof (array));	while (*chptr) {
3991	size = backtrace(array, 40);	end = strchr(chptr, '\n');
3992		if (!end)
3993	fprintf(stderr, "grubby recieved SIGSEGV!  Backtrace (%ld):\n",	break;
3994	(unsigned long)size);	*end = '\0';
3995	backtrace_symbols_fd(array, size, STDERR_FILENO);
3996	exit(1);	if (!strncmp(chptr, mdDev, strlen(mdDev)) &&
3997	}	chptr[strlen(mdDev)] == ' ') {
3998
3999	int main(int argc, const char ** argv) {	/* found the device */
4000	poptContext optCon;	while (*chptr && *chptr != ':')
4001	const char * grubConfig = NULL;	chptr++;
4002	char * outputFile = NULL;	chptr++;
4003	int arg = 0;	while (*chptr && isspace(*chptr))
4004	int flags = 0;	chptr++;
4005	int badImageOkay = 0;
4006	int configureGrub2 = 0;	/* skip the "active" bit */
4007	int configureLilo = 0, configureELilo = 0, configureGrub = 0;	while (*chptr && !isspace(*chptr))
4008	int configureYaboot = 0, configureSilo = 0, configureZipl = 0;	chptr++;
4009	int configureExtLinux = 0;	while (*chptr && isspace(*chptr))
4010	int bootloaderProbe = 0;	chptr++;
4011	int extraInitrdCount = 0;
4012	char * updateKernelPath = NULL;	/* skip the raid level */
4013	char * newKernelPath = NULL;	while (*chptr && !isspace(*chptr))
4014	char * removeKernelPath = NULL;	chptr++;
4015	char * newKernelArgs = NULL;	while (*chptr && isspace(*chptr))
4016	char * newKernelInitrd = NULL;	chptr++;
4017	char * newKernelTitle = NULL;
4018	char * newKernelVersion = NULL;	/* everything else is partition stuff */
4019	char * newMBKernel = NULL;	while (*chptr) {
4020	char * newMBKernelArgs = NULL;	chptr2 = chptr;
4021	char * removeMBKernelArgs = NULL;	while (*chptr2 && *chptr2 != '[')
4022	char * removeMBKernel = NULL;	chptr2++;
4023	char * bootPrefix = NULL;	if (!*chptr2)
4024	char * defaultKernel = NULL;	break;
4025	char * removeArgs = NULL;
4026	char * kernelInfo = NULL;	/* yank off the numbers at the end */
4027	char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL };	chptr2--;
4028	const char * chptr = NULL;	while (isdigit(*chptr2) && chptr2 > chptr)
4029	struct configFileInfo * cfi = NULL;	chptr2--;
4030	struct grubConfig * config;	chptr2++;
4031	struct singleEntry * template = NULL;	*chptr2 = '\0';
4032	int copyDefault = 0, makeDefault = 0;
4033	int displayDefault = 0;	/* Better, now we need the /dev/ back. We're
4034	int displayDefaultIndex = 0;	* done with everything before this point, so
4035	int displayDefaultTitle = 0;	* we can just put the /dev/ part there.
4036	struct poptOption options[] = {	* There will always be room. */
4037	{ "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,	memcpy(chptr - 5, "/dev/", 5);
4038	_("add an entry for the specified kernel"), _("kernel-path") },	rc = checkDeviceBootloader(chptr - 5, boot);
4039	{ "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,	if (rc != 2) {
4040	_("add an entry for the specified multiboot kernel"), NULL },	return rc;
4041	{ "args", 0, POPT_ARG_STRING, &newKernelArgs, 0,	}
4042	_("default arguments for the new kernel or new arguments for "
4043	"kernel being updated"), _("args") },	chptr = chptr2 + 1;
4044	{ "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,	/* skip the [11] bit */
4045	_("default arguments for the new multiboot kernel or "	while (*chptr && !isspace(*chptr))
4046	"new arguments for multiboot kernel being updated"), NULL },	chptr++;
4047	{ "bad-image-okay", 0, 0, &badImageOkay, 0,	/* and move to the next one */
4048	_("don't sanity check images in boot entries (for testing only)"),	while (*chptr && isspace(*chptr))
4049	NULL },	chptr++;
4050	{ "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,	}
4051	_("filestystem which contains /boot directory (for testing only)"),
4052	_("bootfs") },	/*  we're good to go */
4053	#if defined(__i386__) || defined(__x86_64__)	return 2;
4054	{ "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,	}
4055	_("check if lilo is installed on lilo.conf boot sector") },
4056	#endif	chptr = end + 1;
4057	{ "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,	}
4058	_("path to grub config file to update (\"-\" for stdin)"),
4059	_("path") },	fprintf(stderr,
4060	{ "copy-default", 0, 0, &copyDefault, 0,	_("grubby: raid device /dev/%s not found in /proc/mdstat\n"),
4061	_("use the default boot entry as a template for the new entry "	mdDev);
4062	"being added; if the default is not a linux image, or if "	return 0;
4063	"the kernel referenced by the default image does not exist, "	}
4064	"the first linux entry whose kernel does exist is used as the "
4065	"template"), NULL },	int checkForLilo(struct grubConfig *config)
4066	{ "debug", 0, 0, &debug, 0,	{
4067	_("print debugging information for failures") },	int fd;
4068	{ "default-kernel", 0, 0, &displayDefault, 0,	unsigned char boot[512];
4069	_("display the path of the default kernel") },	struct singleLine *line;
4070	{ "default-index", 0, 0, &displayDefaultIndex, 0,
4071	_("display the index of the default kernel") },	for (line = config->theLines; line; line = line->next)
4072	{ "default-title", 0, 0, &displayDefaultTitle, 0,	if (line->type == LT_BOOT)
4073	_("display the title of the default kernel") },	break;
4074	{ "elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4075	_("configure elilo bootloader") },	if (!line) {
4076	{ "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,	fprintf(stderr,
4077	_("configure extlinux bootloader (from syslinux)") },	_
4078	{ "grub", 0, POPT_ARG_NONE, &configureGrub, 0,	("grubby: no boot line found in lilo configuration\n"));
	_("configure grub bootloader") },
	{ "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
	_("configure grub2 bootloader") },
	{ "info", 0, POPT_ARG_STRING, &kernelInfo, 0,
	_("display boot information for specified kernel"),
	_("kernel-path") },
	{ "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
	_("initrd image for the new kernel"), _("initrd-path") },
	{ "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
	_("auxilliary initrd image for things other than the new kernel"), _("initrd-path") },
	{ "lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
	_("configure lilo bootloader") },
	{ "make-default", 0, 0, &makeDefault, 0,
	_("make the newly added entry the default boot entry"), NULL },
	{ "output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
	_("path to output updated config file (\"-\" for stdout)"),
	_("path") },
	{ "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
	_("remove kernel arguments"), NULL },
	{ "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
	_("remove multiboot kernel arguments"), NULL },
	{ "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
	_("remove all entries for the specified kernel"),
	_("kernel-path") },
	{ "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
	_("remove all entries for the specified multiboot kernel"), NULL },
	{ "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
	_("make the first entry referencing the specified kernel "
	"the default"), _("kernel-path") },
	{ "silo", 0, POPT_ARG_NONE, &configureSilo, 0,
	_("configure silo bootloader") },
	{ "title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
	_("title to use for the new kernel entry"), _("entry-title") },
	{ "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
	_("updated information for the specified kernel"),
	_("kernel-path") },
	{ "version", 'v', 0, NULL, 'v',
	_("print the version of this program and exit"), NULL },
	{ "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
	_("configure yaboot bootloader") },
	{ "zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
	_("configure zipl bootloader") },
	POPT_AUTOHELP
	{ 0, 0, 0, 0, 0 }
	};
	useextlinuxmenu=0;
	signal(SIGSEGV, traceback);
	optCon = poptGetContext("grubby", argc, argv, options, 0);
	poptReadDefaultConfig(optCon, 1);
	while ((arg = poptGetNextOpt(optCon)) >= 0) {
	switch (arg) {
	case 'v':
	printf("grubby version %s\n", VERSION);
	exit(0);
	break;
	case 'i':
	if (extraInitrdCount < MAX_EXTRA_INITRDS) {
	extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon));
	} else {
	fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount);
4079	return 1;	return 1;
	}
	break;
4080	}	}
	}
4081
4082	if (arg < -1) {	if (line->numElements != 2)
4083	fprintf(stderr, _("grubby: bad argument %s: %s\n"),	return 1;
4084	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4085	poptStrerror(arg));	fd = open("/boot/boot.b", O_RDONLY);
4086	return 1;	if (fd < 0) {
4087	}	fprintf(stderr, _("grubby: unable to open %s: %s\n"),
4088		"/boot/boot.b", strerror(errno));
4089		return 1;
4090		}
4091
4092		if (read(fd, boot, 512) != 512) {
4093		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4094		"/boot/boot.b", strerror(errno));
4095		return 1;
4096		}
4097		close(fd);
4098
4099		if (!strncmp("/dev/md", line->elements[1].item, 7))
4100		return checkLiloOnRaid(line->elements[1].item, boot);
4101
4102		return checkDeviceBootloader(line->elements[1].item, boot);
4103		}
4104
4105		int checkForGrub2(struct grubConfig *config)
4106		{
4107		if (!access("/etc/grub.d/", R_OK))
4108		return 2;
4109
	if ((chptr = poptGetArg(optCon))) {
	fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4110	return 1;	return 1;
4111	}	}
4112
4113		int checkForGrub(struct grubConfig *config)
4114		{
4115		int fd;
4116		unsigned char bootSect[512];
4117		char *boot;
4118		int onSuse = isSuseSystem();
4119
4120		if (onSuse) {
4121		if (parseSuseGrubConf(NULL, &boot))
4122		return 0;
4123		} else {
4124		if (parseSysconfigGrub(NULL, &boot))
4125		return 0;
4126		}
4127
4128		/* assume grub is not installed -- not an error condition */
4129		if (!boot)
4130		return 0;
4131
4132		fd = open("/boot/grub/stage1", O_RDONLY);
4133		if (fd < 0)
4134		/* this doesn't exist if grub hasn't been installed */
4135		return 0;
4136
4137		if (read(fd, bootSect, 512) != 512) {
4138		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4139		"/boot/grub/stage1", strerror(errno));
4140		close(fd);
4141		return 1;
4142		}
4143		close(fd);
4144
4145		/* The more elaborate checks do not work on SuSE. The checks done
4146		* seem to be reasonble (at least for now), so just return success
4147		*/
4148		if (onSuse)
4149		return 2;
4150
4151		return checkDeviceBootloader(boot, bootSect);
4152		}
4153
4154		int checkForExtLinux(struct grubConfig *config)
4155		{
4156		int fd;
4157		unsigned char bootSect[512];
4158		char *boot;
4159		char executable[] = "/boot/extlinux/extlinux";
4160
4161		printf("entered: checkForExtLinux()\n");
4162
4163		if (parseSysconfigGrub(NULL, &boot))
4164		return 0;
4165
4166		/* assume grub is not installed -- not an error condition */
4167		if (!boot)
4168		return 0;
4169
4170		fd = open(executable, O_RDONLY);
4171		if (fd < 0)
4172		/* this doesn't exist if grub hasn't been installed */
4173		return 0;
4174
4175		if (read(fd, bootSect, 512) != 512) {
4176		fprintf(stderr, _("grubby: unable to read %s: %s\n"),
4177		executable, strerror(errno));
4178		return 1;
4179		}
4180		close(fd);
4181
4182		return checkDeviceBootloader(boot, bootSect);
4183		}
4184
4185		int checkForYaboot(struct grubConfig *config)
4186		{
4187		/*
4188		* This is a simplistic check that we consider good enough for own puporses
4189		*
4190		* If we were to properly check if yaboot is *installed* we'd need to:
4191		* 1) get the system boot device (LT_BOOT)
4192		* 2) considering it's a raw filesystem, check if the yaboot binary matches
4193		*    the content on the boot device
4194		* 3) if not, copy the binary to a temporary file and run "addnote" on it
4195		* 4) check again if binary and boot device contents match
4196		*/
4197		if (!access("/etc/yaboot.conf", R_OK))
4198		return 2;
4199
	if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
	configureYaboot + configureSilo + configureZipl +
	configureExtLinux ) > 1) {
	fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n"));
4200	return 1;	return 1;
4201	} else if (bootloaderProbe && grubConfig) {	}
4202	fprintf(stderr,
4203	_("grubby: cannot specify config file with --bootloader-probe\n"));	int checkForElilo(struct grubConfig *config)
4204		{
4205		if (!access("/etc/elilo.conf", R_OK))
4206		return 2;
4207
4208	return 1;	return 1;
4209	} else if (configureGrub2) {	}
4210	cfi = &grub2ConfigType;
4211	} else if (configureLilo) {	static char *getRootSpecifier(char *str)
4212	cfi = &liloConfigType;	{
4213	} else if (configureGrub) {	char *idx, *rootspec = NULL;
4214	cfi = &grubConfigType;
4215	} else if (configureELilo) {	if (*str == '(') {
4216	cfi = &eliloConfigType;	idx = rootspec = strdup(str);
4217	} else if (configureYaboot) {	while (*idx && (*idx != ')') && (!isspace(*idx)))
4218	cfi = &yabootConfigType;	idx++;
4219	} else if (configureSilo) {	*(++idx) = '\0';
4220	cfi = &siloConfigType;	}
4221	} else if (configureZipl) {	return rootspec;
4222	cfi = &ziplConfigType;	}
4223	} else if (configureExtLinux) {
4224	cfi = &extlinuxConfigType;	static char *getInitrdVal(struct grubConfig *config,
4225	useextlinuxmenu=1;	const char *prefix, struct singleLine *tmplLine,
4226	}	const char *newKernelInitrd,
4227		const char **extraInitrds, int extraInitrdCount)
4228		{
4229		char *initrdVal, *end;
4230		int i;
4231		size_t totalSize;
4232		size_t prefixLen;
4233		char separatorChar;
4234
4235		prefixLen = strlen(prefix);
4236		totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ;
4237
4238		for (i = 0; i < extraInitrdCount; i++) {
4239		totalSize += sizeof(separatorChar);
4240		totalSize += strlen(extraInitrds[i]) - prefixLen;
4241		}
4242
4243		initrdVal = end = malloc(totalSize);
4244
4245		end = stpcpy(end, newKernelInitrd + prefixLen);
4246
4247		separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar;
4248		for (i = 0; i < extraInitrdCount; i++) {
4249		const char *extraInitrd;
4250		int j;
4251
4252		extraInitrd = extraInitrds[i] + prefixLen;
4253		/* Don't add entries that are already there */
4254		if (tmplLine != NULL) {
4255		for (j = 2; j < tmplLine->numElements; j++)
4256		if (strcmp
4257		(extraInitrd,
4258		tmplLine->elements[j].item) == 0)
4259		break;
4260
4261	if (!cfi) {	if (j != tmplLine->numElements)
4262	#ifdef __ia64__	continue;
4263	cfi = &eliloConfigType;	}
4264	#elif __powerpc__
4265	cfi = &yabootConfigType;	*end++ = separatorChar;
4266	#elif __sparc__	end = stpcpy(end, extraInitrd);
4267	cfi = &siloConfigType;	}
4268	#elif __s390__
4269	cfi = &ziplConfigType;	return initrdVal;
4270	#elif __s390x__	}
4271	cfi = &ziplConfigtype;
4272	#else	int addNewKernel(struct grubConfig *config, struct singleEntry *template,
4273	if (grub2FindConfig(&grub2ConfigType))	const char *prefix,
4274	cfi = &grub2ConfigType;	const char *newKernelPath, const char *newKernelTitle,
4275		const char *newKernelArgs, const char *newKernelInitrd,
4276		const char **extraInitrds, int extraInitrdCount,
4277		const char *newMBKernel, const char *newMBKernelArgs,
4278		const char *newDevTreePath, int newIndex)
4279		{
4280		struct singleEntry *new, *entry, *prev = NULL;
4281		struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL;
4282		int needs;
4283		char *indexs;
4284		char *chptr;
4285		int rc;
4286
4287		if (!newKernelPath)
4288		return 0;
4289
4290		rc = asprintf(&indexs, "%d", newIndex);
4291		if (rc < 0)
4292		return 1;
4293
4294		/* if the newKernelTitle is too long silently munge it into something
4295		* we can live with. truncating is first check, then we'll just mess with
4296		* it until it looks better */
4297		if (config->cfi->maxTitleLength &&
4298		(strlen(newKernelTitle) > config->cfi->maxTitleLength)) {
4299		char *buf = alloca(config->cfi->maxTitleLength + 7);
4300		char *numBuf = alloca(config->cfi->maxTitleLength + 1);
4301		int i = 1;
4302
4303		sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength,
4304		newKernelTitle);
4305		while (findEntryByPath(config, buf, NULL, NULL)) {
4306		sprintf(numBuf, "%d", i++);
4307		strcpy(buf + strlen(buf) - strlen(numBuf), numBuf);
4308		}
4309
4310		newKernelTitle = buf + 6;
4311		}
4312
4313		new = malloc(sizeof(*new));
4314		new->skip = 0;
4315		new->multiboot = 0;
4316		new->lines = NULL;
4317		entry = config->entries;
4318		for (unsigned int i = 0; i < newIndex; i++) {
4319		if (!entry)
4320		break;
4321		prev = entry;
4322		entry = entry->next;
4323		}
4324		new->next = entry;
4325
4326		if (prev)
4327		prev->next = new;
4328	else	else
4329	cfi = &grubConfigType;	config->entries = new;
	#endif
	}
4330
4331	if (!grubConfig) {	/* copy/update from the template */
4332	if (cfi->findConfig)	needs = NEED_KERNEL | NEED_TITLE;
4333	grubConfig = cfi->findConfig(cfi);	if (newKernelInitrd)
4334	if (!grubConfig)	needs |= NEED_INITRD;
4335	grubConfig = cfi->defaultConfig;	if (newMBKernel) {
4336	}	needs |= NEED_MB;
4337		new->multiboot = 1;
4338		}
4339		if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi))
4340		needs |= NEED_DEVTREE;
4341
4342		if (template) {
4343		for (masterLine = template->lines;
4344		masterLine && (tmplLine = lineDup(masterLine));
4345		lineFree(tmplLine), masterLine = masterLine->next) {
4346		dbgPrintf("addNewKernel processing %d\n",
4347		tmplLine->type);
4348
4349		/* skip comments */
4350		chptr = tmplLine->indent;
4351		while (*chptr && isspace(*chptr))
4352		chptr++;
4353		if (*chptr == '#')
4354		continue;
4355
4356		if (iskernel(tmplLine->type)
4357		&& tmplLine->numElements >= 2) {
4358		if (!template->multiboot && (needs & NEED_MB)) {
4359		/* it's not a multiboot template and
4360		* this is the kernel line.  Try to
4361		* be intelligent about inserting the
4362		* hypervisor at the same time.
4363		*/
4364		if (config->cfi->mbHyperFirst) {
4365		/* insert the hypervisor first */
4366		newLine =
4367		addLine(new, config->cfi,
4368		LT_HYPER,
4369		tmplLine->indent,
4370		newMBKernel +
4371		strlen(prefix));
4372		/* set up for adding the
4373		* kernel line */
4374		free(tmplLine->indent);
4375		tmplLine->indent =
4376		strdup(config->
4377		secondaryIndent);
4378		needs &= ~NEED_MB;
4379		}
4380		if (needs & NEED_KERNEL) {
4381		/* use addLineTmpl to
4382		* preserve line elements,
4383		* otherwise we could just
4384		* call addLine.
4385		* Unfortunately this means
4386		* making some changes to the
4387		* template such as the
4388		* indent change above and
4389		* the type change below.
4390		*/
4391		struct keywordTypes *mbm_kw =
4392		getKeywordByType
4393		(LT_MBMODULE, config->cfi);
4394		if (mbm_kw) {
4395		tmplLine->type =
4396		LT_MBMODULE;
4397		free(tmplLine->
4398		elements[0].item);
4399		tmplLine->elements[0].
4400		item =
4401		strdup(mbm_kw->key);
4402		}
4403		newLine =
4404		addLineTmpl(new, tmplLine,
4405		newLine,
4406		newKernelPath +
4407		strlen(prefix),
4408		config->cfi);
4409		needs &= ~NEED_KERNEL;
4410		}
4411		if (needs & NEED_MB) { /* !mbHyperFirst */
4412		newLine =
4413		addLine(new, config->cfi,
4414		LT_HYPER,
4415		config->
4416		secondaryIndent,
4417		newMBKernel +
4418		strlen(prefix));
4419		needs &= ~NEED_MB;
4420		}
4421		} else if (needs & NEED_KERNEL) {
4422		newLine =
4423		addLineTmpl(new, tmplLine, newLine,
4424		newKernelPath +
4425		strlen(prefix),
4426		config->cfi);
4427		needs &= ~NEED_KERNEL;
4428		}
4429
4430		} else if (tmplLine->type == LT_HYPER &&
4431		tmplLine->numElements >= 2) {
4432		if (needs & NEED_MB) {
4433		newLine =
4434		addLineTmpl(new, tmplLine, newLine,
4435		newMBKernel +
4436		strlen(prefix),
4437		config->cfi);
4438		needs &= ~NEED_MB;
4439		}
4440
4441		} else if (tmplLine->type == LT_MBMODULE &&
4442		tmplLine->numElements >= 2) {
4443		if (new->multiboot) {
4444		if (needs & NEED_KERNEL) {
4445		newLine =
4446		addLineTmpl(new, tmplLine,
4447		newLine,
4448		newKernelPath +
4449		strlen(prefix),
4450		config->cfi);
4451		needs &= ~NEED_KERNEL;
4452		} else if (config->cfi->mbInitRdIsModule
4453		&& (needs & NEED_INITRD)) {
4454		char *initrdVal;
4455		initrdVal =
4456		getInitrdVal(config, prefix,
4457		tmplLine,
4458		newKernelInitrd,
4459		extraInitrds,
4460		extraInitrdCount);
4461		newLine =
4462		addLineTmpl(new, tmplLine,
4463		newLine,
4464		initrdVal,
4465		config->cfi);
4466		free(initrdVal);
4467		needs &= ~NEED_INITRD;
4468		}
4469		} else if (needs & NEED_KERNEL) {
4470		/* template is multi but new is not,
4471		* insert the kernel in the first
4472		* module slot
4473		*/
4474		tmplLine->type =
4475		preferredLineType(LT_KERNEL,
4476		config->cfi);
4477		free(tmplLine->elements[0].item);
4478		tmplLine->elements[0].item =
4479		strdup(getKeywordByType
4480		(tmplLine->type,
4481		config->cfi)->key);
4482		newLine =
4483		addLineTmpl(new, tmplLine, newLine,
4484		newKernelPath +
4485		strlen(prefix),
4486		config->cfi);
4487		needs &= ~NEED_KERNEL;
4488		} else if (needs & NEED_INITRD) {
4489		char *initrdVal;
4490		/* template is multi but new is not,
4491		* insert the initrd in the second
4492		* module slot
4493		*/
4494		tmplLine->type =
4495		preferredLineType(LT_INITRD,
4496		config->cfi);
4497		free(tmplLine->elements[0].item);
4498		tmplLine->elements[0].item =
4499		strdup(getKeywordByType
4500		(tmplLine->type,
4501		config->cfi)->key);
4502		initrdVal =
4503		getInitrdVal(config, prefix,
4504		tmplLine,
4505		newKernelInitrd,
4506		extraInitrds,
4507		extraInitrdCount);
4508		newLine =
4509		addLineTmpl(new, tmplLine, newLine,
4510		initrdVal, config->cfi);
4511		free(initrdVal);
4512		needs &= ~NEED_INITRD;
4513		}
4514
4515		} else if (isinitrd(tmplLine->type)
4516		&& tmplLine->numElements >= 2) {
4517		if (needs & NEED_INITRD && new->multiboot
4518		&& !template->multiboot
4519		&& config->cfi->mbInitRdIsModule) {
4520		/* make sure we don't insert the
4521		* module initrd before the module
4522		* kernel... if we don't do it here,
4523		* it will be inserted following the
4524		* template.
4525		*/
4526		if (!needs & NEED_KERNEL) {
4527		char *initrdVal;
4528
4529		initrdVal =
4530		getInitrdVal(config, prefix,
4531		tmplLine,
4532		newKernelInitrd,
4533		extraInitrds,
4534		extraInitrdCount);
4535		newLine =
4536		addLine(new, config->cfi,
4537		LT_MBMODULE,
4538		config->
4539		secondaryIndent,
4540		initrdVal);
4541		free(initrdVal);
4542		needs &= ~NEED_INITRD;
4543		}
4544		} else if (needs & NEED_INITRD) {
4545		char *initrdVal;
4546		initrdVal =
4547		getInitrdVal(config, prefix,
4548		tmplLine,
4549		newKernelInitrd,
4550		extraInitrds,
4551		extraInitrdCount);
4552		newLine =
4553		addLineTmpl(new, tmplLine, newLine,
4554		initrdVal, config->cfi);
4555		free(initrdVal);
4556		needs &= ~NEED_INITRD;
4557		}
4558
4559		} else if (tmplLine->type == LT_MENUENTRY &&
4560		(needs & NEED_TITLE)) {
4561		requote(tmplLine, config->cfi);
4562		char *nkt = malloc(strlen(newKernelTitle) + 3);
4563		strcpy(nkt, "'");
4564		strcat(nkt, newKernelTitle);
4565		strcat(nkt, "'");
4566		newLine =
4567		addLineTmpl(new, tmplLine, newLine, nkt,
4568		config->cfi);
4569		free(nkt);
4570		needs &= ~NEED_TITLE;
4571		} else if (tmplLine->type == LT_TITLE &&
4572		(needs & NEED_TITLE)) {
4573		if (tmplLine->numElements >= 2) {
4574		newLine =
4575		addLineTmpl(new, tmplLine, newLine,
4576		newKernelTitle,
4577		config->cfi);
4578		needs &= ~NEED_TITLE;
4579		} else if (tmplLine->numElements == 1 &&
4580		config->cfi->titleBracketed) {
4581		/* addLineTmpl doesn't handle
4582		* titleBracketed */
4583		newLine =
4584		addLine(new, config->cfi, LT_TITLE,
4585		tmplLine->indent,
4586		newKernelTitle);
4587		needs &= ~NEED_TITLE;
4588		}
4589		} else if (tmplLine->type == LT_ECHO) {
4590		requote(tmplLine, config->cfi);
4591		static const char *prefix = "'Loading ";
4592		if (tmplLine->numElements > 1 &&
4593		strstr(tmplLine->elements[1].item, prefix)
4594		&& masterLine->next
4595		&& iskernel(masterLine->next->type)) {
4596		char *newTitle =
4597		malloc(strlen(prefix) +
4598		strlen(newKernelTitle) + 2);
4599
4600		strcpy(newTitle, prefix);
4601		strcat(newTitle, newKernelTitle);
4602		strcat(newTitle, "'");
4603		newLine =
4604		addLine(new, config->cfi, LT_ECHO,
4605		tmplLine->indent, newTitle);
4606		free(newTitle);
4607		} else {
4608		/* pass through other lines from the
4609		* template */
4610		newLine =
4611		addLineTmpl(new, tmplLine, newLine,
4612		NULL, config->cfi);
4613		}
4614		} else if (tmplLine->type == LT_DEVTREE &&
4615		tmplLine->numElements == 2
4616		&& newDevTreePath) {
4617		newLine =
4618		addLineTmpl(new, tmplLine, newLine,
4619		newDevTreePath + strlen(prefix),
4620		config->cfi);
4621		needs &= ~NEED_DEVTREE;
4622		} else if (tmplLine->type == LT_ENTRY_END
4623		&& needs & NEED_DEVTREE) {
4624		const char *ndtp = newDevTreePath;
4625		if (!strncmp
4626		(newDevTreePath, prefix, strlen(prefix)))
4627		ndtp += strlen(prefix);
4628		newLine = addLine(new, config->cfi, LT_DEVTREE,
4629		config->secondaryIndent,
4630		ndtp);
4631		needs &= ~NEED_DEVTREE;
4632		newLine =
4633		addLineTmpl(new, tmplLine, newLine, NULL,
4634		config->cfi);
4635		} else {
4636		/* pass through other lines from the template */
4637		newLine =
4638		addLineTmpl(new, tmplLine, newLine, NULL,
4639		config->cfi);
4640		}
4641		}
4642
4643		} else {
4644		/* don't have a template, so start the entry with the
4645		* appropriate starting line
4646		*/
4647		switch (config->cfi->entryStart) {
4648		case LT_KERNEL:
4649		case LT_KERNEL_EFI:
4650		case LT_KERNEL_16:
4651		if (new->multiboot && config->cfi->mbHyperFirst) {
4652		/* fall through to LT_HYPER */
4653		} else {
4654		newLine = addLine(new, config->cfi,
4655		preferredLineType(LT_KERNEL,
4656		config->
4657		cfi),
4658		config->primaryIndent,
4659		newKernelPath +
4660		strlen(prefix));
4661		needs &= ~NEED_KERNEL;
4662		break;
4663		}
4664
4665		case LT_HYPER:
4666		newLine = addLine(new, config->cfi, LT_HYPER,
4667		config->primaryIndent,
4668		newMBKernel + strlen(prefix));
4669		needs &= ~NEED_MB;
4670		break;
4671
4672		case LT_MENUENTRY:{
4673		char *nkt = malloc(strlen(newKernelTitle) + 3);
4674		strcpy(nkt, "'");
4675		strcat(nkt, newKernelTitle);
4676		strcat(nkt, "'");
4677		newLine =
4678		addLine(new, config->cfi, LT_MENUENTRY,
4679		config->primaryIndent, nkt);
4680		free(nkt);
4681		needs &= ~NEED_TITLE;
4682		needs |= NEED_END;
4683		break;
4684		}
4685		case LT_TITLE:
4686		if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above)
4687		char *templabel;
4688		int x = 0, y = 0;
4689
4690		templabel = strdup(newKernelTitle);
4691		while (templabel[x]) {
4692		if (templabel[x] == ' ') {
4693		y = x;
4694		while (templabel[y]) {
4695		templabel[y] =
4696		templabel[y + 1];
4697		y++;
4698		}
4699		}
4700		x++;
4701		}
4702		newLine = addLine(new, config->cfi, LT_TITLE,
4703		config->primaryIndent,
4704		templabel);
4705		free(templabel);
4706		} else {
4707		newLine = addLine(new, config->cfi, LT_TITLE,
4708		config->primaryIndent,
4709		newKernelTitle);
4710		}
4711		needs &= ~NEED_TITLE;
4712		break;
4713
4714	if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion ||	default:
4715	newKernelPath || removeKernelPath || makeDefault ||	abort();
4716	defaultKernel || displayDefaultIndex || displayDefaultTitle)) {	}
4717	fprintf(stderr, _("grubby: --bootloader-probe may not be used with "	}
4718
4719		struct singleLine *endLine = NULL;
4720		endLine = getLineByType(LT_ENTRY_END, new->lines);
4721		if (endLine) {
4722		removeLine(new, endLine);
4723		needs |= NEED_END;
4724		}
4725
4726		/* add the remainder of the lines, i.e. those that either
4727		* weren't present in the template, or in the case of no template,
4728		* all the lines following the entryStart.
4729		*/
4730		if (needs & NEED_TITLE) {
4731		newLine = addLine(new, config->cfi, LT_TITLE,
4732		config->secondaryIndent, newKernelTitle);
4733		needs &= ~NEED_TITLE;
4734		}
4735		if ((needs & NEED_MB) && config->cfi->mbHyperFirst) {
4736		newLine = addLine(new, config->cfi, LT_HYPER,
4737		config->secondaryIndent,
4738		newMBKernel + strlen(prefix));
4739		needs &= ~NEED_MB;
4740		}
4741		if (needs & NEED_KERNEL) {
4742		newLine = addLine(new, config->cfi,
4743		(new->multiboot
4744		&& getKeywordByType(LT_MBMODULE,
4745		config->cfi))
4746		? LT_MBMODULE : preferredLineType(LT_KERNEL,
4747		config->
4748		cfi),
4749		config->secondaryIndent,
4750		newKernelPath + strlen(prefix));
4751		needs &= ~NEED_KERNEL;
4752		}
4753		if (needs & NEED_MB) {
4754		newLine = addLine(new, config->cfi, LT_HYPER,
4755		config->secondaryIndent,
4756		newMBKernel + strlen(prefix));
4757		needs &= ~NEED_MB;
4758		}
4759		if (needs & NEED_INITRD) {
4760		char *initrdVal;
4761		initrdVal =
4762		getInitrdVal(config, prefix, NULL, newKernelInitrd,
4763		extraInitrds, extraInitrdCount);
4764		newLine =
4765		addLine(new, config->cfi,
4766		(new->multiboot
4767		&& getKeywordByType(LT_MBMODULE, config->cfi))
4768		? LT_MBMODULE : preferredLineType(LT_INITRD,
4769		config->cfi),
4770		config->secondaryIndent, initrdVal);
4771		free(initrdVal);
4772		needs &= ~NEED_INITRD;
4773		}
4774		if (needs & NEED_DEVTREE) {
4775		newLine = addLine(new, config->cfi, LT_DEVTREE,
4776		config->secondaryIndent, newDevTreePath);
4777		needs &= ~NEED_DEVTREE;
4778		}
4779
4780		/* NEEDS_END must be last on bootloaders that need it... */
4781		if (needs & NEED_END) {
4782		newLine = addLine(new, config->cfi, LT_ENTRY_END,
4783		config->secondaryIndent, NULL);
4784		needs &= ~NEED_END;
4785		}
4786
4787		if (needs) {
4788		printf(_("grubby: needs=%d, aborting\n"), needs);
4789		abort();
4790		}
4791
4792		if (updateImage(config, indexs, prefix, newKernelArgs, NULL,
4793		newMBKernelArgs, NULL)) {
4794		config->isModified = 1;
4795		return 1;
4796		}
4797
4798		return 0;
4799		}
4800
4801		int main(int argc, const char **argv)
4802		{
4803		poptContext optCon;
4804		const char *grubConfig = NULL;
4805		char *outputFile = NULL;
4806		int arg = 0;
4807		int flags = 0;
4808		int badImageOkay = 0;
4809		int configureGrub2 = 0;
4810		int configureLilo = 0, configureELilo = 0, configureGrub = 0;
4811		int configureYaboot = 0, configureSilo = 0, configureZipl = 0;
4812		int configureExtLinux = 0;
4813		int bootloaderProbe = 0;
4814		int extraInitrdCount = 0;
4815		char *updateKernelPath = NULL;
4816		char *newKernelPath = NULL;
4817		char *removeKernelPath = NULL;
4818		char *newKernelArgs = NULL;
4819		char *newKernelInitrd = NULL;
4820		char *newKernelTitle = NULL;
4821		char *newDevTreePath = NULL;
4822		char *newMBKernel = NULL;
4823		char *newMBKernelArgs = NULL;
4824		int newIndex = 0;
4825		char *removeMBKernelArgs = NULL;
4826		char *removeMBKernel = NULL;
4827		char *bootPrefix = NULL;
4828		char *defaultKernel = NULL;
4829		char *removeArgs = NULL;
4830		char *kernelInfo = NULL;
4831		char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL };
4832		char *envPath = NULL;
4833		const char *chptr = NULL;
4834		struct configFileInfo *cfi = NULL;
4835		struct grubConfig *config;
4836		struct singleEntry *template = NULL;
4837		int copyDefault = 0, makeDefault = 0;
4838		int displayDefault = 0;
4839		int displayDefaultIndex = 0;
4840		int displayDefaultTitle = 0;
4841		int defaultIndex = -1;
4842		struct poptOption options[] = {
4843		{"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0,
4844		_("add an entry for the specified kernel"), _("kernel-path")},
4845		{"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0,
4846		_("add an entry for the specified multiboot kernel"), NULL},
4847		{"args", 0, POPT_ARG_STRING, &newKernelArgs, 0,
4848		_("default arguments for the new kernel or new arguments for "
4849		"kernel being updated"), _("args")},
4850		{"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0,
4851		_("default arguments for the new multiboot kernel or "
4852		"new arguments for multiboot kernel being updated"), NULL},
4853		{"bad-image-okay", 0, 0, &badImageOkay, 0,
4854		_
4855		("don't sanity check images in boot entries (for testing only)"),
4856		NULL},
4857		{"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0,
4858		_
4859		("filesystem which contains /boot directory (for testing only)"),
4860		_("bootfs")},
4861		#if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__)
4862		{"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0,
4863		_("check which bootloader is installed on boot sector")},
4864		#endif
4865		{"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0,
4866		_("path to grub config file to update (\"-\" for stdin)"),
4867		_("path")},
4868		{"copy-default", 0, 0, &copyDefault, 0,
4869		_("use the default boot entry as a template for the new entry "
4870		"being added; if the default is not a linux image, or if "
4871		"the kernel referenced by the default image does not exist, "
4872		"the first linux entry whose kernel does exist is used as the "
4873		"template"), NULL},
4874		{"debug", 0, 0, &debug, 0,
4875		_("print debugging information for failures")},
4876		{"default-kernel", 0, 0, &displayDefault, 0,
4877		_("display the path of the default kernel")},
4878		{"default-index", 0, 0, &displayDefaultIndex, 0,
4879		_("display the index of the default kernel")},
4880		{"default-title", 0, 0, &displayDefaultTitle, 0,
4881		_("display the title of the default kernel")},
4882		{"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4883		_("device tree file for new stanza"), _("dtb-path")},
4884		{"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0,
4885		_("device tree directory for new stanza"), _("dtb-path")},
4886		{"elilo", 0, POPT_ARG_NONE, &configureELilo, 0,
4887		_("configure elilo bootloader")},
4888		{"efi", 0, POPT_ARG_NONE, &isEfi, 0,
4889		_("force grub2 stanzas to use efi")},
4890		{"env", 0, POPT_ARG_STRING, &envPath, 0,
4891		_("path for environment data"),
4892		_("path")},
4893		{"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0,
4894		_("configure extlinux bootloader (from syslinux)")},
4895		{"grub", 0, POPT_ARG_NONE, &configureGrub, 0,
4896		_("configure grub bootloader")},
4897		{"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0,
4898		_("configure grub2 bootloader")},
4899		{"info", 0, POPT_ARG_STRING, &kernelInfo, 0,
4900		_("display boot information for specified kernel"),
4901		_("kernel-path")},
4902		{"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0,
4903		_("initrd image for the new kernel"), _("initrd-path")},
4904		{"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i',
4905		_
4906		("auxiliary initrd image for things other than the new kernel"),
4907		_("initrd-path")},
4908		{"lilo", 0, POPT_ARG_NONE, &configureLilo, 0,
4909		_("configure lilo bootloader")},
4910		{"make-default", 0, 0, &makeDefault, 0,
4911		_("make the newly added entry the default boot entry"), NULL},
4912		{"output-file", 'o', POPT_ARG_STRING, &outputFile, 0,
4913		_("path to output updated config file (\"-\" for stdout)"),
4914		_("path")},
4915		{"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0,
4916		_("remove kernel arguments"), NULL},
4917		{"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0,
4918		_("remove multiboot kernel arguments"), NULL},
4919		{"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0,
4920		_("remove all entries for the specified kernel"),
4921		_("kernel-path")},
4922		{"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0,
4923		_("remove all entries for the specified multiboot kernel"),
4924		NULL},
4925		{"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0,
4926		_("make the first entry referencing the specified kernel "
4927		"the default"), _("kernel-path")},
4928		{"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0,
4929		_("make the given entry index the default entry"),
4930		_("entry-index")},
4931		{"set-index", 0, POPT_ARG_INT, &newIndex, 0,
4932		_("use the given index when creating a new entry"),
4933		_("entry-index")},
4934		{"silo", 0, POPT_ARG_NONE, &configureSilo, 0,
4935		_("configure silo bootloader")},
4936		{"title", 0, POPT_ARG_STRING, &newKernelTitle, 0,
4937		_("title to use for the new kernel entry"), _("entry-title")},
4938		{"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0,
4939		_("updated information for the specified kernel"),
4940		_("kernel-path")},
4941		{"version", 'v', 0, NULL, 'v',
4942		_("print the version of this program and exit"), NULL},
4943		{"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0,
4944		_("configure yaboot bootloader")},
4945		{"zipl", 0, POPT_ARG_NONE, &configureZipl, 0,
4946		_("configure zipl bootloader")},
4947		POPT_AUTOHELP {0, 0, 0, 0, 0}
4948		};
4949
4950		useextlinuxmenu = 0;
4951
4952		int i = 0;
4953		for (int j = 1; j < argc; j++)
4954		i += strlen(argv[j]) + 1;
4955		saved_command_line = malloc(i);
4956		if (!saved_command_line) {
4957		fprintf(stderr, "grubby: %m\n");
4958		exit(1);
4959		}
4960		saved_command_line[0] = '\0';
4961		for (int j = 1; j < argc; j++) {
4962		strcat(saved_command_line, argv[j]);
4963		strncat(saved_command_line, j == argc - 1 ? "" : " ", 1);
4964		}
4965
4966		optCon = poptGetContext("grubby", argc, argv, options, 0);
4967		poptReadDefaultConfig(optCon, 1);
4968
4969		while ((arg = poptGetNextOpt(optCon)) >= 0) {
4970		switch (arg) {
4971		case 'v':
4972		printf("grubby version %s\n", VERSION);
4973		exit(0);
4974		break;
4975		case 'i':
4976		if (extraInitrdCount < MAX_EXTRA_INITRDS) {
4977		extraInitrds[extraInitrdCount++] =
4978		strdup(poptGetOptArg(optCon));
4979		} else {
4980		fprintf(stderr,
4981		_
4982		("grubby: extra initrd maximum is %d\n"),
4983		extraInitrdCount);
4984		return 1;
4985		}
4986		break;
4987		}
4988		}
4989
4990		if (arg < -1) {
4991		fprintf(stderr, _("grubby: bad argument %s: %s\n"),
4992		poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
4993		poptStrerror(arg));
4994		return 1;
4995		}
4996
4997		if ((chptr = poptGetArg(optCon))) {
4998		fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr);
4999		return 1;
5000		}
5001
5002		if ((configureLilo + configureGrub2 + configureGrub + configureELilo +
5003		configureYaboot + configureSilo + configureZipl +
5004		configureExtLinux) > 1) {
5005		fprintf(stderr,
5006		_("grubby: cannot specify multiple bootloaders\n"));
5007		return 1;
5008		} else if (bootloaderProbe && grubConfig) {
5009		fprintf(stderr,
5010		_
5011		("grubby: cannot specify config file with --bootloader-probe\n"));
5012		return 1;
5013		} else if (configureGrub2) {
5014		cfi = &grub2ConfigType;
5015		if (envPath)
5016		cfi->envFile = envPath;
5017		} else if (configureLilo) {
5018		cfi = &liloConfigType;
5019		} else if (configureGrub) {
5020		cfi = &grubConfigType;
5021		} else if (configureELilo) {
5022		cfi = &eliloConfigType;
5023		} else if (configureYaboot) {
5024		cfi = &yabootConfigType;
5025		} else if (configureSilo) {
5026		cfi = &siloConfigType;
5027		} else if (configureZipl) {
5028		cfi = &ziplConfigType;
5029		} else if (configureExtLinux) {
5030		cfi = &extlinuxConfigType;
5031		useextlinuxmenu = 1;
5032		}
5033
5034		if (!cfi) {
5035		if (grub2FindConfig(&grub2ConfigType)) {
5036		cfi = &grub2ConfigType;
5037		if (envPath)
5038		cfi->envFile = envPath;
5039		} else
5040		#ifdef __ia64__
5041		cfi = &eliloConfigType;
5042		#elif __powerpc__
5043		cfi = &yabootConfigType;
5044		#elif __sparc__
5045		cfi = &siloConfigType;
5046		#elif __s390__
5047		cfi = &ziplConfigType;
5048		#elif __s390x__
5049		cfi = &ziplConfigtype;
5050		#else
5051		cfi = &grubConfigType;
5052		#endif
5053		}
5054
5055		if (!grubConfig) {
5056		if (cfi->findConfig)
5057		grubConfig = cfi->findConfig(cfi);
5058		if (!grubConfig)
5059		grubConfig = cfi->defaultConfig;
5060		}
5061
5062		if (bootloaderProbe && (displayDefault || kernelInfo ||
5063		newKernelPath || removeKernelPath || makeDefault
5064		|| defaultKernel || displayDefaultIndex
5065		|| displayDefaultTitle
5066		|| (defaultIndex >= 0))) {
5067		fprintf(stderr,
5068		_("grubby: --bootloader-probe may not be used with "
5069	"specified option"));	"specified option"));
5070	return 1;	return 1;
5071	}	}
5072
5073	if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath ||	if ((displayDefault || kernelInfo) && (newKernelPath ||
5074	removeKernelPath)) {	removeKernelPath)) {
5075	fprintf(stderr, _("grubby: --default-kernel and --info may not "	fprintf(stderr, _("grubby: --default-kernel and --info may not "
5076	"be used when adding or removing kernels\n"));	"be used when adding or removing kernels\n"));
5077	return 1;	return 1;
5078	}	}
5079
5080	if (newKernelPath && !newKernelTitle) {	if (newKernelPath && !newKernelTitle) {
5081	fprintf(stderr, _("grubby: kernel title must be specified\n"));	fprintf(stderr, _("grubby: kernel title must be specified\n"));
5082	return 1;	return 1;
5083	} else if (!newKernelPath && (newKernelTitle  || copyDefault ||	} else if (!newKernelPath && (copyDefault ||
5084	(newKernelInitrd && !updateKernelPath)||	(newKernelInitrd && !updateKernelPath) ||
5085	makeDefault || extraInitrdCount > 0)) {	makeDefault || extraInitrdCount > 0)) {
5086	fprintf(stderr, _("grubby: kernel path expected\n"));	fprintf(stderr, _("grubby: kernel path expected\n"));
5087	return 1;	return 1;
5088	}	}
5089
5090	if (newKernelPath && updateKernelPath) {	if (newKernelPath && updateKernelPath) {
5091	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"	fprintf(stderr, _("grubby: --add-kernel and --update-kernel may"
5092	"not be used together"));	"not be used together"));
5093	return 1;	return 1;
5094	}	}
5095
5096	if (makeDefault && defaultKernel) {	if (makeDefault && defaultKernel) {
5097	fprintf(stderr, _("grubby: --make-default and --default-kernel "	fprintf(stderr, _("grubby: --make-default and --default-kernel "
5098		"may not be used together\n"));
5099		return 1;
5100		} else if (defaultKernel && removeKernelPath &&
5101		!strcmp(defaultKernel, removeKernelPath)) {
5102		fprintf(stderr,
5103		_("grubby: cannot make removed kernel the default\n"));
5104		return 1;
5105		} else if (defaultKernel && newKernelPath &&
5106		!strcmp(defaultKernel, newKernelPath)) {
5107		makeDefault = 1;
5108		defaultKernel = NULL;
5109		} else if (defaultKernel && (defaultIndex >= 0)) {
5110		fprintf(stderr,
5111		_("grubby: --set-default and --set-default-index "
5112	"may not be used together\n"));	"may not be used together\n"));
5113	return 1;	return 1;
5114	} else if (defaultKernel && removeKernelPath &&	}
	!strcmp(defaultKernel, removeKernelPath)) {
	fprintf(stderr, _("grubby: cannot make removed kernel the default\n"));
	return 1;
	} else if (defaultKernel && newKernelPath &&
	!strcmp(defaultKernel, newKernelPath)) {
	makeDefault = 1;
	defaultKernel = NULL;
	}
5115
5116	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {	if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
5117	fprintf(stderr, _("grubby: output file must be specified if stdin "	fprintf(stderr,
5118	"is used\n"));	_("grubby: output file must be specified if stdin "
5119	return 1;	"is used\n"));
5120	}	return 1;
5121		}
5122
5123	if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel	if (!removeKernelPath && !newKernelPath && !displayDefault
5124	&& !kernelInfo && !bootloaderProbe && !updateKernelPath	&& !defaultKernel && !kernelInfo && !bootloaderProbe
5125	&& !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) {	&& !updateKernelPath && !removeMBKernel && !displayDefaultIndex
5126	fprintf(stderr, _("grubby: no action specified\n"));	&& !displayDefaultTitle && (defaultIndex == -1)) {
5127	return 1;	fprintf(stderr, _("grubby: no action specified\n"));
5128	}	return 1;
5129		}
5130
5131	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;	flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0;
5132
5133	if (cfi->needsBootPrefix) {	if (cfi->needsBootPrefix) {
5134	if (!bootPrefix) {	if (!bootPrefix) {
5135	bootPrefix = findBootPrefix();	bootPrefix = findBootPrefix();
5136	if (!bootPrefix) return 1;	if (!bootPrefix)
5137	} else {	return 1;
5138	/* this shouldn't end with a / */	} else {
5139	if (bootPrefix[strlen(bootPrefix) - 1] == '/')	/* this shouldn't end with a / */
5140	bootPrefix[strlen(bootPrefix) - 1] = '\0';	if (bootPrefix[strlen(bootPrefix) - 1] == '/')
5141		bootPrefix[strlen(bootPrefix) - 1] = '\0';
5142		}
5143		} else {
5144		bootPrefix = "";
5145	}	}
	} else {
	bootPrefix = "";
	}
5146
5147	if (!cfi->mbAllowExtraInitRds &&	if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) {
5148	extraInitrdCount > 0) {	fprintf(stderr,
5149	fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig);	_("grubby: %s doesn't allow multiple initrds\n"),
5150	return 1;	cfi->defaultConfig);
5151	}	return 1;
5152		}
5153
5154	if (bootloaderProbe) {	if (bootloaderProbe) {
5155	int lrc = 0, grc = 0, gr2c = 0, erc = 0;	int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0;
5156	struct grubConfig * lconfig, * gconfig;	struct grubConfig *lconfig, *gconfig, *yconfig, *econfig;
5157
5158	const char *grub2config = grub2FindConfig(&grub2ConfigType);	const char *grub2config = grub2FindConfig(&grub2ConfigType);
5159	if (grub2config) {	if (grub2config) {
5160	gconfig = readConfig(grub2config, &grub2ConfigType);	gconfig = readConfig(grub2config, &grub2ConfigType);
5161	if (!gconfig)	if (!gconfig)
5162	gr2c = 1;	gr2c = 1;
5163	else	else
5164	gr2c = checkForGrub2(gconfig);	gr2c = checkForGrub2(gconfig);
5165	}	}
	const char *grubconfig = grubFindConfig(&grubConfigType);
	if (!access(grubconfig, F_OK)) {
	gconfig = readConfig(grubconfig, &grubConfigType);
	if (!gconfig)
	grc = 1;
	else
	grc = checkForGrub(gconfig);
	}
	if (!access(liloConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType);
	if (!lconfig)
	lrc = 1;
	else
	lrc = checkForLilo(lconfig);
	}
	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
	lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType);
	if (!lconfig)
	erc = 1;
	else
	erc = checkForExtLinux(lconfig);
	}
	if (lrc == 1 || grc == 1 || gr2c == 1) return 1;
	if (lrc == 2) printf("lilo\n");
	if (gr2c == 2) printf("grub2\n");
	if (grc == 2) printf("grub\n");
	if (erc == 2) printf("extlinux\n");
5166
5167	return 0;	const char *grubconfig = grubFindConfig(&grubConfigType);
5168	}	if (!access(grubconfig, F_OK)) {
5169		gconfig = readConfig(grubconfig, &grubConfigType);
5170		if (!gconfig)
5171		grc = 1;
5172		else
5173		grc = checkForGrub(gconfig);
5174		}
5175
5176	config = readConfig(grubConfig, cfi);	if (!access(liloConfigType.defaultConfig, F_OK)) {
5177	if (!config) return 1;	lconfig =
5178		readConfig(liloConfigType.defaultConfig,
5179		&liloConfigType);
5180		if (!lconfig)
5181		lrc = 1;
5182		else
5183		lrc = checkForLilo(lconfig);
5184		}
5185
5186	if (displayDefault) {	if (!access(eliloConfigType.defaultConfig, F_OK)) {
5187	struct singleLine * line;	econfig = readConfig(eliloConfigType.defaultConfig,
5188	struct singleEntry * entry;	&eliloConfigType);
5189	char * rootspec;	if (!econfig)
5190		erc = 1;
5191	if (config->defaultImage == -1) return 0;	else
5192	entry = findEntryByIndex(config, config->defaultImage);	erc = checkForElilo(econfig);
5193	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));
5194
5195	return 0;	if (!access(extlinuxConfigType.defaultConfig, F_OK)) {
5196		lconfig =
5197		readConfig(extlinuxConfigType.defaultConfig,
5198		&extlinuxConfigType);
5199		if (!lconfig)
5200		extrc = 1;
5201		else
5202		extrc = checkForExtLinux(lconfig);
5203		}
5204
5205		if (!access(yabootConfigType.defaultConfig, F_OK)) {
5206		yconfig = readConfig(yabootConfigType.defaultConfig,
5207		&yabootConfigType);
5208		if (!yconfig)
5209		yrc = 1;
5210		else
5211		yrc = checkForYaboot(yconfig);
5212		}
5213
5214	} else if (displayDefaultTitle) {	if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1
5215	struct singleLine * line;	|| erc == 1)
5216	struct singleEntry * entry;	return 1;
5217
5218	if (config->defaultImage == -1) return 0;	if (lrc == 2)
5219	entry = findEntryByIndex(config, config->defaultImage);	printf("lilo\n");
5220	if (!entry) return 0;	if (gr2c == 2)
5221		printf("grub2\n");
5222	if (!configureGrub2) {	if (grc == 2)
5223	line = getLineByType(LT_TITLE, entry->lines);	printf("grub\n");
5224	if (!line) return 0;	if (extrc == 2)
5225	printf("%s\n", line->elements[1].item);	printf("extlinux\n");
5226		if (yrc == 2)
5227	} else {	printf("yaboot\n");
5228	char * title;	if (erc == 2)
5229		printf("elilo\n");
5230	dbgPrintf("This is GRUB2, default title is embeded in menuentry\n");
5231	line = getLineByType(LT_MENUENTRY, entry->lines);	return 0;
	if (!line) return 0;
	title = grub2ExtractTitle(line);
	if (title)
	printf("%s\n", title);
5232	}	}
	return 0;
5233
5234	} else if (displayDefaultIndex) {	if (grubConfig == NULL) {
5235	if (config->defaultImage == -1) return 0;	printf("Could not find bootloader configuration file.\n");
5236	printf("%i\n", config->defaultImage);	exit(1);
5237		}
	} else if (kernelInfo)
	return displayInfo(config, kernelInfo, bootPrefix);
	if (copyDefault) {
	template = findTemplate(config, bootPrefix, NULL, 0, flags);
	if (!template) return 1;
	}
5238
5239	markRemovedImage(config, removeKernelPath, bootPrefix);	config = readConfig(grubConfig, cfi);
5240	markRemovedImage(config, removeMBKernel, bootPrefix);	if (!config)
5241	setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault,	return 1;
5242	bootPrefix, flags);
5243	setFallbackImage(config, newKernelPath != NULL);	if (displayDefault) {
5244	if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,	struct singleLine *line;
5245	removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1;	struct singleEntry *entry;
5246	if (updateKernelPath && newKernelInitrd) {	char *rootspec;
5247	if (updateInitrd(config, updateKernelPath, bootPrefix,
5248	newKernelInitrd)) return 1;	if (config->defaultImage == NO_DEFAULT_ENTRY)
5249	}	return 0;
5250	if (addNewKernel(config, template, bootPrefix, newKernelPath,	if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5251	newKernelTitle, newKernelArgs, newKernelInitrd,	cfi->defaultIsSaved)
5252	extraInitrds, extraInitrdCount,	config->defaultImage = FIRST_ENTRY_INDEX;
5253	newMBKernel, newMBKernelArgs)) return 1;	entry = findEntryByIndex(config, config->defaultImage);
5254		if (!entry)
5255		return 0;
5256	if (numEntries(config) == 0) {	if (!suitableImage(entry, bootPrefix, 0, flags))
5257	fprintf(stderr, _("grubby: doing this would leave no kernel entries. "	return 0;
5258	"Not writing out new config.\n"));
5259	return 1;	line =
5260	}	getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI |
5261		LT_KERNEL_16, entry->lines);
5262		if (!line)
5263		return 0;
5264
5265		rootspec = getRootSpecifier(line->elements[1].item);
5266		printf("%s%s\n", bootPrefix, line->elements[1].item +
5267		((rootspec != NULL) ? strlen(rootspec) : 0));
5268
5269		return 0;
5270
5271		} else if (displayDefaultTitle) {
5272		struct singleLine *line;
5273		struct singleEntry *entry;
5274
5275		if (config->defaultImage == NO_DEFAULT_ENTRY)
5276		return 0;
5277		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5278		cfi->defaultIsSaved)
5279		config->defaultImage = FIRST_ENTRY_INDEX;
5280		entry = findEntryByIndex(config, config->defaultImage);
5281		if (!entry)
5282		return 0;
5283
5284		if (!configureGrub2) {
5285		char *title;
5286		line = getLineByType(LT_TITLE, entry->lines);
5287		if (!line)
5288		return 0;
5289		title = extractTitle(config, line);
5290		if (!title)
5291		return 0;
5292		printf("%s\n", title);
5293		free(title);
5294		} else {
5295		char *title;
5296
5297		dbgPrintf
5298		("This is GRUB2, default title is embeded in menuentry\n");
5299		line = getLineByType(LT_MENUENTRY, entry->lines);
5300		if (!line)
5301		return 0;
5302		title = grub2ExtractTitle(line);
5303		if (title)
5304		printf("%s\n", title);
5305		}
5306		return 0;
5307
5308		} else if (displayDefaultIndex) {
5309		if (config->defaultImage == NO_DEFAULT_ENTRY)
5310		return 0;
5311		if (config->defaultImage == DEFAULT_SAVED_GRUB2 &&
5312		cfi->defaultIsSaved)
5313		config->defaultImage = FIRST_ENTRY_INDEX;
5314		printf("%i\n", config->defaultImage);
5315		return 0;
5316
5317		} else if (kernelInfo)
5318		return displayInfo(config, kernelInfo, bootPrefix);
5319
5320		if (copyDefault) {
5321		template = findTemplate(config, bootPrefix, NULL, 0, flags);
5322		if (!template)
5323		return 1;
5324		}
5325
5326		markRemovedImage(config, removeKernelPath, bootPrefix);
5327		markRemovedImage(config, removeMBKernel, bootPrefix);
5328		setDefaultImage(config, newKernelPath != NULL, defaultKernel,
5329		makeDefault, bootPrefix, flags, defaultIndex,
5330		newIndex);
5331		setFallbackImage(config, newKernelPath != NULL);
5332		if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs,
5333		removeArgs, newMBKernelArgs, removeMBKernelArgs))
5334		return 1;
5335		if (updateKernelPath && newKernelInitrd) {
5336		if (newMBKernel) {
5337		if (addMBInitrd(config, newMBKernel, updateKernelPath,
5338		bootPrefix, newKernelInitrd,
5339		newKernelTitle))
5340		return 1;
5341		} else {
5342		if (updateInitrd(config, updateKernelPath, bootPrefix,
5343		newKernelInitrd, newKernelTitle))
5344		return 1;
5345		}
5346		}
5347		if (addNewKernel(config, template, bootPrefix, newKernelPath,
5348		newKernelTitle, newKernelArgs, newKernelInitrd,
5349		(const char **)extraInitrds, extraInitrdCount,
5350		newMBKernel, newMBKernelArgs, newDevTreePath,
5351		newIndex))
5352		return 1;
5353
5354		if (numEntries(config) == 0) {
5355		fprintf(stderr,
5356		_("grubby: doing this would leave no kernel entries. "
5357		"Not writing out new config.\n"));
5358		return 1;
5359		}
5360
5361	if (!outputFile)	if (!outputFile)
5362	outputFile = (char *)grubConfig;	outputFile = (char *)grubConfig;
5363
5364	return writeConfig(config, outputFile, bootPrefix);	return writeConfig(config, outputFile, bootPrefix);
5365	}	}

---

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