summaryrefslogtreecommitdiff
path: root/lib/libalpm/package.c
blob: 947f62e0ab7cbdc6dc843acef4a84eb3bc44a59f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
/*
 *  package.c
 *
 *  Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
 *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
 *  Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
 *  Copyright (c) 2005, 2006 by Christian Hamar <krics@linuxforum.hu>
 *  Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "config.h"

#include <stdlib.h>
#include <string.h>
#include <sys/types.h>

/* libalpm */
#include "package.h"
#include "alpm_list.h"
#include "log.h"
#include "util.h"
#include "db.h"
#include "delta.h"
#include "handle.h"
#include "deps.h"

/** \addtogroup alpm_packages Package Functions
 * @brief Functions to manipulate libalpm packages
 * @{
 */

/** Free a package. */
int SYMEXPORT alpm_pkg_free(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return -1);

	/* Only free packages loaded in user space */
	if(pkg->origin == PKG_FROM_FILE) {
		_alpm_pkg_free(pkg);
	}

	return 0;
}

/** Check the integrity (with md5) of a package from the sync cache. */
int SYMEXPORT alpm_pkg_checkmd5sum(alpm_pkg_t *pkg)
{
	char *fpath;
	int retval;

	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	/* We only inspect packages from sync repositories */
	ASSERT(pkg->origin == PKG_FROM_SYNCDB,
			RET_ERR(pkg->handle, ALPM_ERR_WRONG_ARGS, -1));

	fpath = _alpm_filecache_find(pkg->handle, alpm_pkg_get_filename(pkg));

	retval = _alpm_test_md5sum(fpath, alpm_pkg_get_md5sum(pkg));

	if(retval == 0) {
		return 0;
	} else if(retval == 1) {
		pkg->handle->pm_errno = ALPM_ERR_PKG_INVALID;
		retval = -1;
	}

	return retval;
}

/* Default package accessor functions. These will get overridden by any
 * backend logic that needs lazy access, such as the local database through
 * a lazy-load cache. However, the defaults will work just fine for fully-
 * populated package structures. */
static const char *_pkg_get_filename(alpm_pkg_t *pkg)    { return pkg->filename; }
static const char *_pkg_get_desc(alpm_pkg_t *pkg)        { return pkg->desc; }
static const char *_pkg_get_url(alpm_pkg_t *pkg)         { return pkg->url; }
static time_t _pkg_get_builddate(alpm_pkg_t *pkg)        { return pkg->builddate; }
static time_t _pkg_get_installdate(alpm_pkg_t *pkg)      { return pkg->installdate; }
static const char *_pkg_get_packager(alpm_pkg_t *pkg)    { return pkg->packager; }
static const char *_pkg_get_md5sum(alpm_pkg_t *pkg)      { return pkg->md5sum; }
static const char *_pkg_get_arch(alpm_pkg_t *pkg)        { return pkg->arch; }
static off_t _pkg_get_size(alpm_pkg_t *pkg)              { return pkg->size; }
static off_t _pkg_get_isize(alpm_pkg_t *pkg)             { return pkg->isize; }
static alpm_pkgreason_t _pkg_get_reason(alpm_pkg_t *pkg)    { return pkg->reason; }
static int _pkg_has_scriptlet(alpm_pkg_t *pkg)           { return pkg->scriptlet; }

static alpm_list_t *_pkg_get_licenses(alpm_pkg_t *pkg)   { return pkg->licenses; }
static alpm_list_t *_pkg_get_groups(alpm_pkg_t *pkg)     { return pkg->groups; }
static alpm_list_t *_pkg_get_depends(alpm_pkg_t *pkg)    { return pkg->depends; }
static alpm_list_t *_pkg_get_optdepends(alpm_pkg_t *pkg) { return pkg->optdepends; }
static alpm_list_t *_pkg_get_conflicts(alpm_pkg_t *pkg)  { return pkg->conflicts; }
static alpm_list_t *_pkg_get_provides(alpm_pkg_t *pkg)   { return pkg->provides; }
static alpm_list_t *_pkg_get_replaces(alpm_pkg_t *pkg)   { return pkg->replaces; }
static alpm_list_t *_pkg_get_deltas(alpm_pkg_t *pkg)     { return pkg->deltas; }
static alpm_filelist_t *_pkg_get_files(alpm_pkg_t *pkg)  { return &(pkg->files); }
static alpm_list_t *_pkg_get_backup(alpm_pkg_t *pkg)     { return pkg->backup; }

static void *_pkg_changelog_open(alpm_pkg_t UNUSED *pkg)
{
	return NULL;
}

static size_t _pkg_changelog_read(void UNUSED *ptr, size_t UNUSED size,
		const alpm_pkg_t UNUSED *pkg, const UNUSED void *fp)
{
	return 0;
}

static int _pkg_changelog_close(const alpm_pkg_t UNUSED *pkg,
		void UNUSED *fp)
{
	return EOF;
}

static int _pkg_force_load(alpm_pkg_t UNUSED *pkg) { return 0; }

/** The standard package operations struct. Get fields directly from the
 * struct itself with no abstraction layer or any type of lazy loading.
 */
struct pkg_operations default_pkg_ops = {
	.get_filename    = _pkg_get_filename,
	.get_desc        = _pkg_get_desc,
	.get_url         = _pkg_get_url,
	.get_builddate   = _pkg_get_builddate,
	.get_installdate = _pkg_get_installdate,
	.get_packager    = _pkg_get_packager,
	.get_md5sum      = _pkg_get_md5sum,
	.get_arch        = _pkg_get_arch,
	.get_size        = _pkg_get_size,
	.get_isize       = _pkg_get_isize,
	.get_reason      = _pkg_get_reason,
	.has_scriptlet   = _pkg_has_scriptlet,

	.get_licenses    = _pkg_get_licenses,
	.get_groups      = _pkg_get_groups,
	.get_depends     = _pkg_get_depends,
	.get_optdepends  = _pkg_get_optdepends,
	.get_conflicts   = _pkg_get_conflicts,
	.get_provides    = _pkg_get_provides,
	.get_replaces    = _pkg_get_replaces,
	.get_deltas      = _pkg_get_deltas,
	.get_files       = _pkg_get_files,
	.get_backup      = _pkg_get_backup,

	.changelog_open  = _pkg_changelog_open,
	.changelog_read  = _pkg_changelog_read,
	.changelog_close = _pkg_changelog_close,

	.force_load      = _pkg_force_load,
};

/* Public functions for getting package information. These functions
 * delegate the hard work to the function callbacks attached to each
 * package, which depend on where the package was loaded from. */
const char SYMEXPORT *alpm_pkg_get_filename(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_filename(pkg);
}

const char SYMEXPORT *alpm_pkg_get_name(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->name;
}

const char SYMEXPORT *alpm_pkg_get_version(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->version;
}

const char SYMEXPORT *alpm_pkg_get_desc(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_desc(pkg);
}

const char SYMEXPORT *alpm_pkg_get_url(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_url(pkg);
}

time_t SYMEXPORT alpm_pkg_get_builddate(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_builddate(pkg);
}

time_t SYMEXPORT alpm_pkg_get_installdate(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_installdate(pkg);
}

const char SYMEXPORT *alpm_pkg_get_packager(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_packager(pkg);
}

const char SYMEXPORT *alpm_pkg_get_md5sum(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_md5sum(pkg);
}

const char SYMEXPORT *alpm_pkg_get_arch(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_arch(pkg);
}

off_t SYMEXPORT alpm_pkg_get_size(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_size(pkg);
}

off_t SYMEXPORT alpm_pkg_get_isize(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_isize(pkg);
}

alpm_pkgreason_t SYMEXPORT alpm_pkg_get_reason(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_reason(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_licenses(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_licenses(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_groups(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_groups(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_depends(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_depends(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_optdepends(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_optdepends(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_conflicts(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_conflicts(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_provides(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_provides(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_replaces(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_replaces(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_deltas(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_deltas(pkg);
}

alpm_filelist_t SYMEXPORT *alpm_pkg_get_files(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_files(pkg);
}

alpm_list_t SYMEXPORT *alpm_pkg_get_backup(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->get_backup(pkg);
}

alpm_db_t SYMEXPORT *alpm_pkg_get_db(alpm_pkg_t *pkg)
{
	/* Sanity checks */
	ASSERT(pkg != NULL, return NULL);
	ASSERT(pkg->origin != PKG_FROM_FILE, return NULL);
	pkg->handle->pm_errno = 0;

	return pkg->origin_data.db;
}

/** Open a package changelog for reading. */
void SYMEXPORT *alpm_pkg_changelog_open(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;
	return pkg->ops->changelog_open(pkg);
}

/** Read data from an open changelog 'file stream'. */
size_t SYMEXPORT alpm_pkg_changelog_read(void *ptr, size_t size,
		const alpm_pkg_t *pkg, const void *fp)
{
	ASSERT(pkg != NULL, return 0);
	pkg->handle->pm_errno = 0;
	return pkg->ops->changelog_read(ptr, size, pkg, fp);
}

/*
int SYMEXPORT alpm_pkg_changelog_feof(const alpm_pkg_t *pkg, void *fp)
{
	return pkg->ops->changelog_feof(pkg, fp);
}
*/

/** Close a package changelog for reading. */
int SYMEXPORT alpm_pkg_changelog_close(const alpm_pkg_t *pkg, void *fp)
{
	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	return pkg->ops->changelog_close(pkg, fp);
}

int SYMEXPORT alpm_pkg_has_scriptlet(alpm_pkg_t *pkg)
{
	ASSERT(pkg != NULL, return -1);
	pkg->handle->pm_errno = 0;
	return pkg->ops->has_scriptlet(pkg);
}

static void find_requiredby(alpm_pkg_t *pkg, alpm_db_t *db, alpm_list_t **reqs)
{
	const alpm_list_t *i;
	pkg->handle->pm_errno = 0;

	for(i = _alpm_db_get_pkgcache(db); i; i = i->next) {
		alpm_pkg_t *cachepkg = i->data;
		alpm_list_t *j;
		for(j = alpm_pkg_get_depends(cachepkg); j; j = j->next) {
			if(_alpm_depcmp(pkg, j->data)) {
				const char *cachepkgname = cachepkg->name;
				if(alpm_list_find_str(*reqs, cachepkgname) == NULL) {
					*reqs = alpm_list_add(*reqs, strdup(cachepkgname));
				}
			}
		}
	}
}

/** Compute the packages requiring a given package. */
alpm_list_t SYMEXPORT *alpm_pkg_compute_requiredby(alpm_pkg_t *pkg)
{
	const alpm_list_t *i;
	alpm_list_t *reqs = NULL;
	alpm_db_t *db;

	ASSERT(pkg != NULL, return NULL);
	pkg->handle->pm_errno = 0;

	if(pkg->origin == PKG_FROM_FILE) {
		/* The sane option; search locally for things that require this. */
		find_requiredby(pkg, pkg->handle->db_local, &reqs);
	} else {
		/* We have a DB package. if it is a local package, then we should
		 * only search the local DB; else search all known sync databases. */
		db = pkg->origin_data.db;
		if(db->is_local) {
			find_requiredby(pkg, db, &reqs);
		} else {
			for(i = pkg->handle->dbs_sync; i; i = i->next) {
				db = i->data;
				find_requiredby(pkg, db, &reqs);
			}
			reqs = alpm_list_msort(reqs, alpm_list_count(reqs), _alpm_str_cmp);
		}
	}
	return reqs;
}

/** @} */

alpm_file_t *_alpm_file_copy(alpm_file_t *dest,
		const alpm_file_t *src)
{
	STRDUP(dest->name, src->name, return NULL);
	dest->size = src->size;
	dest->mode = src->mode;

	return dest;
}

/* Helper function for comparing files list entries
 */
int _alpm_files_cmp(const void *f1, const void *f2)
{
	const alpm_file_t *file1 = f1;
	const alpm_file_t *file2 = f2;
	return strcmp(file1->name, file2->name);
}

alpm_pkg_t *_alpm_pkg_new(void)
{
	alpm_pkg_t* pkg;

	CALLOC(pkg, 1, sizeof(alpm_pkg_t), return NULL);

	return pkg;
}

alpm_pkg_t *_alpm_pkg_dup(alpm_pkg_t *pkg)
{
	alpm_pkg_t *newpkg;
	alpm_list_t *i;

	if(pkg->ops->force_load(pkg)) {
		return NULL;
	}

	CALLOC(newpkg, 1, sizeof(alpm_pkg_t), goto cleanup);

	newpkg->name_hash = pkg->name_hash;
	STRDUP(newpkg->filename, pkg->filename, goto cleanup);
	STRDUP(newpkg->name, pkg->name, goto cleanup);
	STRDUP(newpkg->version, pkg->version, goto cleanup);
	STRDUP(newpkg->desc, pkg->desc, goto cleanup);
	STRDUP(newpkg->url, pkg->url, goto cleanup);
	newpkg->builddate = pkg->builddate;
	newpkg->installdate = pkg->installdate;
	STRDUP(newpkg->packager, pkg->packager, goto cleanup);
	STRDUP(newpkg->md5sum, pkg->md5sum, goto cleanup);
	STRDUP(newpkg->arch, pkg->arch, goto cleanup);
	newpkg->size = pkg->size;
	newpkg->isize = pkg->isize;
	newpkg->scriptlet = pkg->scriptlet;
	newpkg->reason = pkg->reason;

	newpkg->licenses   = alpm_list_strdup(pkg->licenses);
	newpkg->replaces   = alpm_list_strdup(pkg->replaces);
	newpkg->groups     = alpm_list_strdup(pkg->groups);
	if(pkg->files.count) {
		size_t filenum;
		size_t len = sizeof(alpm_file_t) * pkg->files.count;
		MALLOC(newpkg->files.files, len, goto cleanup);
		for(filenum = 0; filenum < pkg->files.count; filenum++) {
			if(!_alpm_file_copy(newpkg->files.files + filenum,
						pkg->files.files + filenum)) {
				goto cleanup;
			}
		}
		newpkg->files.count = pkg->files.count;
	}
	for(i = pkg->backup; i; i = alpm_list_next(i)) {
		newpkg->backup = alpm_list_add(newpkg->backup, _alpm_backup_dup(i->data));
	}
	for(i = pkg->depends; i; i = alpm_list_next(i)) {
		newpkg->depends = alpm_list_add(newpkg->depends, _alpm_dep_dup(i->data));
	}
	newpkg->optdepends = alpm_list_strdup(pkg->optdepends);
	newpkg->conflicts  = alpm_list_strdup(pkg->conflicts);
	newpkg->provides   = alpm_list_strdup(pkg->provides);
	for(i = pkg->deltas; i; i = alpm_list_next(i)) {
		newpkg->deltas = alpm_list_add(newpkg->deltas, _alpm_delta_dup(i->data));
	}

	/* internal */
	newpkg->infolevel = pkg->infolevel;
	newpkg->origin = pkg->origin;
	if(newpkg->origin == PKG_FROM_FILE) {
		newpkg->origin_data.file = strdup(pkg->origin_data.file);
	} else {
		newpkg->origin_data.db = pkg->origin_data.db;
	}
	newpkg->ops = pkg->ops;
	newpkg->handle = pkg->handle;

	return newpkg;

cleanup:
	_alpm_pkg_free(newpkg);
	return NULL;
}

void _alpm_pkg_free(alpm_pkg_t *pkg)
{
	if(pkg == NULL) {
		return;
	}

	FREE(pkg->filename);
	FREE(pkg->name);
	FREE(pkg->version);
	FREE(pkg->desc);
	FREE(pkg->url);
	FREE(pkg->packager);
	FREE(pkg->md5sum);
	FREE(pkg->base64_sig);
	FREE(pkg->arch);
	FREELIST(pkg->licenses);
	FREELIST(pkg->replaces);
	FREELIST(pkg->groups);
	if(pkg->files.count) {
		size_t i;
		for(i = 0; i < pkg->files.count; i++) {
			free(pkg->files.files[i].name);
		}
		free(pkg->files.files);
	}
	alpm_list_free_inner(pkg->backup, (alpm_list_fn_free)_alpm_backup_free);
	alpm_list_free(pkg->backup);
	alpm_list_free_inner(pkg->depends, (alpm_list_fn_free)_alpm_dep_free);
	alpm_list_free(pkg->depends);
	FREELIST(pkg->optdepends);
	FREELIST(pkg->conflicts);
	FREELIST(pkg->provides);
	alpm_list_free_inner(pkg->deltas, (alpm_list_fn_free)_alpm_delta_free);
	alpm_list_free(pkg->deltas);
	alpm_list_free(pkg->delta_path);
	alpm_list_free(pkg->removes);

	if(pkg->origin == PKG_FROM_FILE) {
		FREE(pkg->origin_data.file);
	}
	FREE(pkg);
}

/* This function should be used when removing a target from upgrade/sync target list
 * Case 1: If pkg is a loaded package file (PKG_FROM_FILE), it will be freed.
 * Case 2: If pkg is a pkgcache entry (PKG_FROM_CACHE), it won't be freed,
 *         only the transaction specific fields of pkg will be freed.
 */
void _alpm_pkg_free_trans(alpm_pkg_t *pkg)
{
	if(pkg == NULL) {
		return;
	}

	if(pkg->origin == PKG_FROM_FILE) {
		_alpm_pkg_free(pkg);
		return;
	}

	alpm_list_free(pkg->removes);
	pkg->removes = NULL;
}

/* Is spkg an upgrade for localpkg? */
int _alpm_pkg_compare_versions(alpm_pkg_t *spkg, alpm_pkg_t *localpkg)
{
	return alpm_pkg_vercmp(alpm_pkg_get_version(spkg),
			alpm_pkg_get_version(localpkg));
}

/* Helper function for comparing packages
 */
int _alpm_pkg_cmp(const void *p1, const void *p2)
{
	const alpm_pkg_t *pkg1 = p1;
	const alpm_pkg_t *pkg2 = p2;
	return strcoll(pkg1->name, pkg2->name);
}

/* Test for existence of a package in a alpm_list_t*
 * of alpm_pkg_t*
 */
alpm_pkg_t *_alpm_pkg_find(alpm_list_t *haystack, const char *needle)
{
	alpm_list_t *lp;
	unsigned long needle_hash;

	if(needle == NULL || haystack == NULL) {
		return NULL;
	}

	needle_hash = _alpm_hash_sdbm(needle);

	for(lp = haystack; lp; lp = lp->next) {
		alpm_pkg_t *info = lp->data;

		if(info) {
			if(info->name_hash != needle_hash) {
				continue;
			}

			/* finally: we had hash match, verify string match */
			if(strcmp(info->name, needle) == 0) {
				return info;
			}
		}
	}
	return NULL;
}

/** Test if a package should be ignored.
 *
 * Checks if the package is ignored via IgnorePkg, or if the package is
 * in a group ignored via IgnoreGroup.
 *
 * @param handle the context handle
 * @param pkg the package to test
 *
 * @return 1 if the package should be ignored, 0 otherwise
 */
int _alpm_pkg_should_ignore(alpm_handle_t *handle, alpm_pkg_t *pkg)
{
	alpm_list_t *groups = NULL;

	/* first see if the package is ignored */
	if(alpm_list_find_str(handle->ignorepkg, alpm_pkg_get_name(pkg))) {
		return 1;
	}

	/* next see if the package is in a group that is ignored */
	for(groups = handle->ignoregroup; groups; groups = alpm_list_next(groups)) {
		char *grp = (char *)alpm_list_getdata(groups);
		if(alpm_list_find_str(alpm_pkg_get_groups(pkg), grp)) {
			return 1;
		}
	}

	return 0;
}

/* vim: set ts=2 sw=2 noet: */