Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/lib/libalpm/add.c
blob: 2c33947b977967813121ffc007d2de8f220634c7 (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
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
/*
 *  add.c
 * 
 *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
 *  Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
 *  Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
 *  Copyright (c) 2006 by David Kimpe <dnaku@frugalware.org>
 *  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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */

#if defined(__APPLE__) || defined(__OpenBSD__)
#include <sys/syslimits.h>
#endif
#if defined(__APPLE__) || defined(__OpenBSD__) || defined(__sun__)
#include <sys/stat.h>
#endif

#include "config.h"
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <fcntl.h>
#include <string.h>
#include <limits.h>
#include <libintl.h>
/* pacman */
#include "list.h"
#include "trans.h"
#include "util.h"
#include "error.h"
#include "cache.h"
#include "versioncmp.h"
#include "md5.h"
#include "sha1.h"
#include "log.h"
#include "backup.h"
#include "package.h"
#include "db.h"
#include "provide.h"
#include "conflict.h"
#include "deps.h"
#include "add.h"
#include "remove.h"
#include "handle.h"

static int add_faketarget(pmtrans_t *trans, char *name)
{
	char *ptr, *p;
	char *str = NULL;
	pmpkg_t *dummy = NULL;

	dummy = _alpm_pkg_new(NULL, NULL);
	if(dummy == NULL) {
		RET_ERR(PM_ERR_MEMORY, -1);
	}

	/* Format: field1=value1|field2=value2|...
	 * Valid fields are "name", "version" and "depend"
	 */
	str = strdup(name);
	ptr = str;
	while((p = strsep(&ptr, "|")) != NULL) {
		char *q;
		if(p[0] == 0) {
			continue;
		}
		q = strchr(p, '=');
		if(q == NULL) { /* not a valid token */
			continue;
		}
		if(strncmp("name", p, q-p) == 0) {
			STRNCPY(dummy->name, q+1, PKG_NAME_LEN);
		} else if(strncmp("version", p, q-p) == 0) {
			STRNCPY(dummy->version, q+1, PKG_VERSION_LEN);
		} else if(strncmp("depend", p, q-p) == 0) {
			dummy->depends = _alpm_list_add(dummy->depends, strdup(q+1));
		} else {
			_alpm_log(PM_LOG_ERROR, _("could not parse token %s"), p);
		}
	}
	FREE(str);
	if(dummy->name[0] == 0 || dummy->version[0] == 0) {
		FREEPKG(dummy);
		RET_ERR(PM_ERR_PKG_INVALID_NAME, -1);
	}

	/* add the package to the transaction */
	trans->packages = _alpm_list_add(trans->packages, dummy);

	return(0);
}

int _alpm_add_loadtarget(pmtrans_t *trans, pmdb_t *db, char *name)
{
	pmpkg_t *info = NULL;
	pmpkg_t *dummy;
	char pkgname[PKG_NAME_LEN], pkgver[PKG_VERSION_LEN];
	pmlist_t *i;
	struct stat buf;

	ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
	ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
	ASSERT(name != NULL && strlen(name) != 0, RET_ERR(PM_ERR_WRONG_ARGS, -1));

	/* Check if we need to add a fake target to the transaction. */
	if(strchr(name, '|')) {
		return(add_faketarget(trans, name));
	}

	_alpm_log(PM_LOG_FLOW2, _("loading target '%s'"), name);

	if(stat(name, &buf)) {
		pm_errno = PM_ERR_NOT_A_FILE;
		goto error;
	}

	if(_alpm_pkg_splitname(name, pkgname, pkgver, 1) == -1) {
		pm_errno = PM_ERR_PKG_INVALID_NAME;
		goto error;
	}

	/* no additional hyphens in version strings */
	if(strchr(pkgver, '-') != strrchr(pkgver, '-')) {
		pm_errno = PM_ERR_PKG_INVALID_NAME;
		goto error;
	}

	if(trans->type != PM_TRANS_TYPE_UPGRADE) {
		/* only install this package if it is not already installed */
		if(_alpm_db_get_pkgfromcache(db, pkgname)) {
			pm_errno = PM_ERR_PKG_INSTALLED;
			goto error;
		}
	} else {
		if(trans->flags & PM_TRANS_FLAG_FRESHEN) {
			/* only upgrade/install this package if it is already installed and at a lesser version */
			dummy = _alpm_db_get_pkgfromcache(db, pkgname);
			if(dummy == NULL || _alpm_versioncmp(dummy->version, pkgver) >= 0) {
				pm_errno = PM_ERR_PKG_CANT_FRESH;
				goto error;
			}
		}
	}

	/* check if an older version of said package is already in transaction packages.
	 * if so, replace it in the list */
	for(i = trans->packages; i; i = i->next) {
		pmpkg_t *pkg = i->data;
		if(strcmp(pkg->name, pkgname) == 0) {
			if(_alpm_versioncmp(pkg->version, pkgver) < 0) {
				pmpkg_t *newpkg;
				_alpm_log(PM_LOG_WARNING, _("replacing older version %s-%s by %s in target list"),
				          pkg->name, pkg->version, pkgver);
				if((newpkg = _alpm_pkg_load(name)) == NULL) {
					/* pm_errno is already set by pkg_load() */
					goto error;
				}
				FREEPKG(i->data);
				i->data = newpkg;
			} else {
				_alpm_log(PM_LOG_WARNING, _("newer version %s-%s is in the target list -- skipping"),
				          pkg->name, pkg->version, pkgver);
			}
			return(0);
		}
	}

	_alpm_log(PM_LOG_FLOW2, _("reading '%s' metadata"), pkgname);
	info = _alpm_pkg_load(name);
	if(info == NULL) {
		/* pm_errno is already set by pkg_load() */
		goto error;
	}
	/* check to verify we're not getting fooled by a corrupted package */
	if(strcmp(pkgname, info->name) != 0 || strcmp(pkgver, info->version) != 0) {
		pm_errno = PM_ERR_PKG_INVALID;
		goto error;
	}

	if(trans->flags & PM_TRANS_FLAG_ALLDEPS) {
		info->reason = PM_PKG_REASON_DEPEND;
	}

	/* add the package to the transaction */
	trans->packages = _alpm_list_add(trans->packages, info);

	return(0);

error:
	FREEPKG(info);
	return(-1);
}

int _alpm_add_prepare(pmtrans_t *trans, pmdb_t *db, pmlist_t **data)
{
	pmlist_t *lp;
	pmlist_t *rmlist = NULL;
	char rm_fname[PATH_MAX];
	pmpkg_t *info = NULL;

	ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
	ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));

	/* Check dependencies
	 */
	if(!(trans->flags & PM_TRANS_FLAG_NODEPS)) {
		EVENT(trans, PM_TRANS_EVT_CHECKDEPS_START, NULL, NULL);

		/* look for unsatisfied dependencies */
		_alpm_log(PM_LOG_FLOW1, _("looking for unsatisfied dependencies"));
		lp = _alpm_checkdeps(trans, db, trans->type, trans->packages);
		if(lp != NULL) {
			if(data) {
				*data = lp;
			} else {
				FREELIST(lp);
			}
			RET_ERR(PM_ERR_UNSATISFIED_DEPS, -1);
		}

		/* no unsatisfied deps, so look for conflicts */
		_alpm_log(PM_LOG_FLOW1, _("looking for conflicts"));
		lp = _alpm_checkconflicts(db, trans->packages);
		if(lp != NULL) {
			if(data) {
				*data = lp;
			} else {
				FREELIST(lp);
			}
			RET_ERR(PM_ERR_CONFLICTING_DEPS, -1);
		}

		/* re-order w.r.t. dependencies */
		_alpm_log(PM_LOG_FLOW1, _("sorting by dependencies"));
		lp = _alpm_sortbydeps(trans->packages, PM_TRANS_TYPE_ADD);
		/* free the old alltargs */
		FREELISTPTR(trans->packages);
		trans->packages = lp;

		EVENT(trans, PM_TRANS_EVT_CHECKDEPS_DONE, NULL, NULL);
	}

	/* Cleaning up
	 */
	EVENT(trans, PM_TRANS_EVT_CLEANUP_START, NULL, NULL);
	_alpm_log(PM_LOG_FLOW1, _("cleaning up"));
	for (lp=trans->packages; lp!=NULL; lp=lp->next) {
		info=(pmpkg_t *)lp->data;
		for (rmlist=info->removes; rmlist!=NULL; rmlist=rmlist->next) {
			snprintf(rm_fname, PATH_MAX, "%s%s", handle->root, (char *)rmlist->data);
			remove(rm_fname);
		}
	}
	EVENT(trans, PM_TRANS_EVT_CLEANUP_DONE, NULL, NULL);

	/* Check for file conflicts
	 */
	if(!(trans->flags & PM_TRANS_FLAG_FORCE)) {
		pmlist_t *skiplist = NULL;

		EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_START, NULL, NULL);

		_alpm_log(PM_LOG_FLOW1, _("looking for file conflicts"));
		lp = _alpm_db_find_conflicts(db, trans, handle->root, &skiplist);
		if(lp != NULL) {
			if(data) {
				*data = lp;
			} else {
				FREELIST(lp);
			}
			FREELIST(skiplist);
			RET_ERR(PM_ERR_FILE_CONFLICTS, -1);
		}

		/* copy the file skiplist into the transaction */
		trans->skiplist = skiplist;

		EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_DONE, NULL, NULL);
	}

#ifndef __sun__
	if(_alpm_check_freespace(trans, data) == -1) {
			/* pm_errno is set by check_freespace */
			return(-1);
	}
#endif

	return(0);
}

int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
{
	int i, ret = 0, errors = 0, needdisp = 0;
	double percent = 0.0;
	register struct archive *archive;
	struct archive_entry *entry;
	char expath[PATH_MAX], cwd[PATH_MAX] = "", *what;
	unsigned char cb_state;
	time_t t;
	pmlist_t *targ, *lp;

	ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
	ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));

	if(trans->packages == NULL) {
		return(0);
	}

	for(targ = trans->packages; targ; targ = targ->next) {
		unsigned short pmo_upgrade;
		char pm_install[PATH_MAX];
		pmpkg_t *info = (pmpkg_t *)targ->data;
		pmpkg_t *oldpkg = NULL;
		errors = 0;

		if(handle->trans->state == STATE_INTERRUPTED) {
			break;
		}

		pmo_upgrade = (trans->type == PM_TRANS_TYPE_UPGRADE) ? 1 : 0;

		/* see if this is an upgrade.  if so, remove the old package first */
		if(pmo_upgrade) {
			pmpkg_t *local = _alpm_db_get_pkgfromcache(db, info->name);
			if(local) {
				EVENT(trans, PM_TRANS_EVT_UPGRADE_START, info, NULL);
				cb_state = PM_TRANS_PROGRESS_UPGRADE_START;
				_alpm_log(PM_LOG_FLOW1, _("upgrading package %s-%s"), info->name, info->version);
				if((what = (char *)malloc(strlen(info->name)+1)) == NULL) {
					RET_ERR(PM_ERR_MEMORY, -1);
				}
				STRNCPY(what, info->name, strlen(info->name)+1);

				/* we'll need to save some record for backup checks later */
				oldpkg = _alpm_pkg_new(local->name, local->version);
				if(oldpkg) {
					if(!(local->infolevel & INFRQ_FILES)) {
						_alpm_log(PM_LOG_DEBUG, _("loading FILES info for '%s'"), local->name);
						_alpm_db_read(db, INFRQ_FILES, local);
					}
					oldpkg->backup = _alpm_list_strdup(local->backup);
					strncpy(oldpkg->name, local->name, PKG_NAME_LEN);
					strncpy(oldpkg->version, local->version, PKG_VERSION_LEN);
				}

				/* copy over the install reason */
				if(!(local->infolevel & INFRQ_DESC)) {
					_alpm_db_read(db, INFRQ_DESC, local);
				}
				info->reason = local->reason;

				/* pre_upgrade scriptlet */
				if(info->scriptlet && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
					_alpm_runscriptlet(handle->root, info->data, "pre_upgrade", info->version, oldpkg ? oldpkg->version : NULL,
						trans);
				}

				if(oldpkg) {
					pmtrans_t *tr;
					_alpm_log(PM_LOG_FLOW1, _("removing old package first (%s-%s)"), oldpkg->name, oldpkg->version);
					tr = _alpm_trans_new();
					if(tr == NULL) {
						RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					if(_alpm_trans_init(tr, PM_TRANS_TYPE_UPGRADE, trans->flags, NULL, NULL, NULL) == -1) {
						FREETRANS(tr);
						RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					if(_alpm_remove_loadtarget(tr, db, info->name) == -1) {
						FREETRANS(tr);
						RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					/* copy the skiplist over */
					tr->skiplist = _alpm_list_strdup(trans->skiplist);
					if(_alpm_remove_commit(tr, db) == -1) {
						FREETRANS(tr);
						RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					FREETRANS(tr);
				}
			} else {
				/* no previous package version is installed, so this is actually
				 * just an install.  */
				pmo_upgrade = 0;
			}
		}
		if(!pmo_upgrade) {
			EVENT(trans, PM_TRANS_EVT_ADD_START, info, NULL);
			cb_state = PM_TRANS_PROGRESS_ADD_START;
			_alpm_log(PM_LOG_FLOW1, _("adding package %s-%s"), info->name, info->version);
			if((what = (char *)malloc(strlen(info->name)+1)) == NULL) {
				RET_ERR(PM_ERR_MEMORY, -1);
			}
			STRNCPY(what, info->name, strlen(info->name)+1);

			/* pre_install scriptlet */
			if(info->scriptlet && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
				_alpm_runscriptlet(handle->root, info->data, "pre_install", info->version, NULL, trans);
			}
		} else {
			_alpm_log(PM_LOG_FLOW1, _("adding new package %s-%s"), info->name, info->version);
		}

		if(!(trans->flags & PM_TRANS_FLAG_DBONLY)) {
			_alpm_log(PM_LOG_FLOW1, _("extracting files"));

			/* Extract the package */
			if ((archive = archive_read_new ()) == NULL)
				RET_ERR(PM_ERR_LIBARCHIVE_ERROR, -1);

			archive_read_support_compression_all (archive);
			archive_read_support_format_all (archive);

			if (archive_read_open_file (archive, info->data, ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
				RET_ERR(PM_ERR_PKG_OPEN, -1);
			}

			/* save the cwd so we can restore it later */
			if(getcwd(cwd, PATH_MAX) == NULL) {
				_alpm_log(PM_LOG_ERROR, _("could not get current working directory"));
				/* in case of error, cwd content is undefined: so we set it to something */
				cwd[0] = 0;
			}

			/* libarchive requires this for extracting hard links */
			chdir(handle->root);

			for(i = 0; archive_read_next_header (archive, &entry) == ARCHIVE_OK; i++) {
				int nb = 0;
				int notouch = 0;
				char *md5_orig = NULL;
				char *sha1_orig = NULL;
				char pathname[PATH_MAX];
				struct stat buf;

				STRNCPY(pathname, archive_entry_pathname (entry), PATH_MAX);

				if (info->size != 0)
		    			percent = (double)archive_position_uncompressed(archive) / info->size;
				if (needdisp == 0) {
					PROGRESS(trans, cb_state, what, (int)(percent * 100), _alpm_list_count(trans->packages), (_alpm_list_count(trans->packages) - _alpm_list_count(targ) +1));
				}

				if(!strcmp(pathname, ".PKGINFO") || !strcmp(pathname, ".FILELIST")) {
					archive_read_data_skip (archive);
					continue;
				}

				/*if(!strcmp(pathname, "._install") || !strcmp(pathname, ".INSTALL")) {
				*	 the install script goes inside the db 
				*	snprintf(expath, PATH_MAX, "%s/%s-%s/install", db->path, info->name, info->version); */
				if(!strcmp(pathname, "._install") || !strcmp(pathname, ".INSTALL") ||
					!strcmp(pathname, ".CHANGELOG")) {
					if(!strcmp(pathname, ".CHANGELOG")) {
						/* the changelog goes inside the db */
						snprintf(expath, PATH_MAX, "%s/%s-%s/changelog", db->path,
							info->name, info->version);
					} else {
						/* the install script goes inside the db */
						snprintf(expath, PATH_MAX, "%s/%s-%s/install", db->path,
							info->name, info->version);
					}
				} else {
					/* build the new pathname relative to handle->root */
					snprintf(expath, PATH_MAX, "%s%s", handle->root, pathname);
				}

				/* if a file is in NoExtract then we never extract it.
				 *
				 * eg, /home/httpd/html/index.html may be removed so index.php
				 * could be used.
				 */
				if(_alpm_list_is_strin(pathname, handle->noextract)) {
					alpm_logaction(_("notice: %s is in NoExtract -- skipping extraction"), pathname);
					archive_read_data_skip (archive);
					continue;
				}

				if(!stat(expath, &buf) && !S_ISDIR(buf.st_mode)) {
					/* file already exists */
					if(_alpm_list_is_strin(pathname, handle->noupgrade)) {
						notouch = 1;
					} else {
						if(!pmo_upgrade || oldpkg == NULL) {
							nb = _alpm_list_is_strin(pathname, info->backup);
						} else {
							/* op == PM_TRANS_TYPE_UPGRADE */
							md5_orig = _alpm_needbackup(pathname, oldpkg->backup);
							sha1_orig = _alpm_needbackup(pathname, oldpkg->backup);
							if(md5_orig || sha1_orig) {
								nb = 1;
							}
						}
					}
				}

				if(nb) {
					char *temp;
					char *md5_local, *md5_pkg;
					char *sha1_local, *sha1_pkg;
					int fd;

					/* extract the package's version to a temporary file and md5 it */
					temp = strdup("/tmp/alpm_XXXXXX");
					fd = mkstemp(temp);
					
					archive_entry_set_pathname (entry, temp);

					if(archive_read_extract (archive, entry, ARCHIVE_EXTRACT_FLAGS) != ARCHIVE_OK) {
						alpm_logaction(_("could not extract %s (%s)"), pathname, strerror(errno));
						errors++;
						unlink(temp);
						FREE(temp);
						FREE(md5_orig);
						FREE(sha1_orig);
						close(fd);
						continue;
					}
					md5_local = _alpm_MDFile(expath);
					md5_pkg = _alpm_MDFile(temp);
					sha1_local = _alpm_SHAFile(expath);
					sha1_pkg = _alpm_SHAFile(temp);
					/* append the new md5 or sha1 hash to it's respective entry in info->backup
					 * (it will be the new orginal)
					 */
					for(lp = info->backup; lp; lp = lp->next) {
						char *fn;
						char *file = lp->data;

						if(!file) continue;
						if(!strcmp(file, pathname)) {
						    if(info->sha1sum != NULL && info->sha1sum != '\0') {
							/* 32 for the hash, 1 for the terminating NULL, and 1 for the tab delimiter */
							if((fn = (char *)malloc(strlen(file)+34)) == NULL) {
								RET_ERR(PM_ERR_MEMORY, -1);
							}
							sprintf(fn, "%s\t%s", file, md5_pkg);
							FREE(file);
							lp->data = fn;
						    } else {
							/* 41 for the hash, 1 for the terminating NULL, and 1 for the tab delimiter */
							if((fn = (char *)malloc(strlen(file)+43)) == NULL) {
								RET_ERR(PM_ERR_MEMORY, -1);
							}
							sprintf(fn, "%s\t%s", file, sha1_pkg);
							FREE(file);
							lp->data = fn;
						    }
						}
					}

					if (info->sha1sum != NULL && info->sha1sum != '\0') {
					_alpm_log(PM_LOG_DEBUG, _("checking md5 hashes for %s"), pathname);
					_alpm_log(PM_LOG_DEBUG, _("current:  %s"), md5_local);
					_alpm_log(PM_LOG_DEBUG, _("new:      %s"), md5_pkg);
					if(md5_orig) {
						_alpm_log(PM_LOG_DEBUG, _("original: %s"), md5_orig);
					}
					} else {
                                        _alpm_log(PM_LOG_DEBUG, _("checking sha1 hashes for %s"), pathname);
					_alpm_log(PM_LOG_DEBUG, _("current:  %s"), sha1_local);
                                        _alpm_log(PM_LOG_DEBUG, _("new:      %s"), sha1_pkg);
                                        if(sha1_orig) {
                                        _alpm_log(PM_LOG_DEBUG, _("original: %s"), sha1_orig);
					}
					}

					if(!pmo_upgrade) {
						/* PM_ADD */

						/* if a file already exists with a different md5 or sha1 hash,
						 * then we rename it to a .pacorig extension and continue */
						if(strcmp(md5_local, md5_pkg) || strcmp(sha1_local, sha1_pkg)) {
							char newpath[PATH_MAX];
							snprintf(newpath, PATH_MAX, "%s.pacorig", expath);
							if(rename(expath, newpath)) {
								archive_entry_set_pathname (entry, expath);
								_alpm_log(PM_LOG_ERROR, _("could not rename %s (%s)"), pathname, strerror(errno));
								alpm_logaction(_("error: could not rename %s (%s)"), expath, strerror(errno));
							}
							if(_alpm_copyfile(temp, expath)) {
								archive_entry_set_pathname (entry, expath);
								_alpm_log(PM_LOG_ERROR, _("could not copy %s to %s (%s)"), temp, pathname, strerror(errno));
								alpm_logaction(_("error: could not copy %s to %s (%s)"), temp, expath, strerror(errno));
								errors++;
							} else {
								archive_entry_set_pathname (entry, expath);
								_alpm_log(PM_LOG_WARNING, _("%s saved as %s.pacorig"), pathname, pathname);
								alpm_logaction(_("warning: %s saved as %s"), expath, newpath);
							}
						}
					} else if(md5_orig || sha1_orig) {
						/* PM_UPGRADE */
						int installnew = 0;

						/* the fun part */
						if(!strcmp(md5_orig, md5_local)|| !strcmp(sha1_orig, sha1_local)) {
							if(!strcmp(md5_local, md5_pkg) || !strcmp(sha1_local, sha1_pkg)) {
								_alpm_log(PM_LOG_DEBUG, _("action: installing new file"));
								installnew = 1;
							} else {
								_alpm_log(PM_LOG_DEBUG, _("action: installing new file"));
								installnew = 1;
							}
						} else if(!strcmp(md5_orig, md5_pkg) || !strcmp(sha1_orig, sha1_pkg)) {
							_alpm_log(PM_LOG_DEBUG, _("action: leaving existing file in place"));
						} else if(!strcmp(md5_local, md5_pkg) || !strcmp(sha1_local, sha1_pkg)) {
							_alpm_log(PM_LOG_DEBUG, _("action: installing new file"));
							installnew = 1;
						} else {
							char newpath[PATH_MAX];
							_alpm_log(PM_LOG_DEBUG, _("action: keeping current file and installing new one with .pacnew ending"));
							installnew = 0;
							snprintf(newpath, PATH_MAX, "%s.pacnew", expath);
							if(_alpm_copyfile(temp, newpath)) {
								_alpm_log(PM_LOG_ERROR, _("could not install %s as %s: %s"), expath, newpath, strerror(errno));
								alpm_logaction(_("error: could not install %s as %s: %s"), expath, newpath, strerror(errno));
							} else {
								_alpm_log(PM_LOG_WARNING, _("%s installed as %s"), expath, newpath);
								alpm_logaction(_("warning: %s installed as %s"), expath, newpath);
							}
						}

						if(installnew) {
							_alpm_log(PM_LOG_FLOW2, _("extracting %s"), pathname);
							if(_alpm_copyfile(temp, expath)) {
								_alpm_log(PM_LOG_ERROR, _("could not copy %s to %s (%s)"), temp, pathname, strerror(errno));
								errors++;
							}
						    archive_entry_set_pathname (entry, expath);
						}
					}

					FREE(md5_local);
					FREE(md5_pkg);
					FREE(md5_orig);
					FREE(sha1_local);
					FREE(sha1_pkg);
					FREE(sha1_orig);
					unlink(temp);
					FREE(temp);
					close(fd);
				} else {
					if(!notouch) {
						_alpm_log(PM_LOG_FLOW2, _("extracting %s"), pathname);
					} else {
						_alpm_log(PM_LOG_FLOW2, _("%s is in NoUpgrade -- skipping"), pathname);
						strncat(expath, ".pacnew", PATH_MAX);
						_alpm_log(PM_LOG_WARNING, _("extracting %s as %s.pacnew"), pathname, pathname);
						alpm_logaction(_("warning: extracting %s%s as %s"), handle->root, pathname, expath);
						/*tar_skip_regfile(tar);*/
					}
					if(trans->flags & PM_TRANS_FLAG_FORCE) {
						/* if FORCE was used, then unlink() each file (whether it's there
						 * or not) before extracting.  this prevents the old "Text file busy"
						 * error that crops up if one tries to --force a glibc or pacman
						 * upgrade.
						 */
						unlink(expath);
					}
					archive_entry_set_pathname (entry, expath);
					if(archive_read_extract (archive, entry, ARCHIVE_EXTRACT_FLAGS) != ARCHIVE_OK) {
						_alpm_log(PM_LOG_ERROR, _("could not extract %s (%s)"), expath, strerror(errno));
						alpm_logaction(_("error: could not extract %s (%s)"), expath, strerror(errno));
						errors++;
					}
					/* calculate an md5 or sha1 hash if this is in info->backup */
					for(lp = info->backup; lp; lp = lp->next) {
						char *fn, *md5, *sha1;
						char path[PATH_MAX];
						char *file = lp->data;

						if(!file) continue;
						if(!strcmp(file, pathname)) {
							_alpm_log(PM_LOG_DEBUG, _("appending backup entry"));
							snprintf(path, PATH_MAX, "%s%s", handle->root, file);
							if (info->sha1sum != NULL && info->sha1sum != '\0') {
							    md5 = _alpm_MDFile(path);
							    /* 32 for the hash, 1 for the terminating NULL, and 1 for the tab delimiter */
							    if((fn = (char *)malloc(strlen(file)+34)) == NULL) {
										RET_ERR(PM_ERR_MEMORY, -1);
									}
							    sprintf(fn, "%s\t%s", file, md5);
							    FREE(md5);
							} else {
							    /* 41 for the hash, 1 for the terminating NULL, and 1 for the tab delimiter */
							    sha1 = _alpm_SHAFile(path);
							    if((fn = (char *)malloc(strlen(file)+43)) == NULL) {
										RET_ERR(PM_ERR_MEMORY, -1);
									}
							    sprintf(fn, "%s\t%s", file, sha1);
							    FREE(sha1);
							}
							FREE(file);
							lp->data = fn;
						}
					}
				}
			}
			if(strlen(cwd)) {
				chdir(cwd);
			}
			archive_read_finish (archive);

			if(errors) {
				ret = 1;
				_alpm_log(PM_LOG_ERROR, _("errors occurred while %s %s"),
					(pmo_upgrade ? _("upgrading") : _("installing")), info->name);
				alpm_logaction(_("errors occurred while %s %s"),
					(pmo_upgrade ? _("upgrading") : _("installing")), info->name);
			}
		}

		/* Add the package to the database */
		t = time(NULL);

		/* Update the requiredby field by scanning the whole database 
		 * looking for packages depending on the package to add */
		for(lp = _alpm_db_get_pkgcache(db, INFRQ_DEPENDS); lp; lp = lp->next) {
			pmpkg_t *tmpp = lp->data;
			pmlist_t *tmppm = NULL;
			if(tmpp == NULL) {
				continue;
			}
			for(tmppm = tmpp->depends; tmppm; tmppm = tmppm->next) {
				pmdepend_t depend;
				if(_alpm_splitdep(tmppm->data, &depend)) {
					continue;
				}
				if(tmppm->data && !strcmp(depend.name, info->name)) {
					_alpm_log(PM_LOG_DEBUG, _("adding '%s' in requiredby field for '%s'"), tmpp->name, info->name);
					info->requiredby = _alpm_list_add(info->requiredby, strdup(tmpp->name));
				}
			}
		}

		/* make an install date (in UTC) */
		STRNCPY(info->installdate, asctime(gmtime(&t)), sizeof(info->installdate));
		/* remove the extra line feed appended by asctime() */
		info->installdate[strlen(info->installdate)-1] = 0;

		_alpm_log(PM_LOG_FLOW1, _("updating database"));
		_alpm_log(PM_LOG_FLOW2, _("adding database entry '%s'"), info->name);
		if(_alpm_db_write(db, info, INFRQ_ALL)) {
			_alpm_log(PM_LOG_ERROR, _("could not update database entry %s-%s"),
			          info->name, info->version);
			alpm_logaction(NULL, _("error updating database for %s-%s!"), info->name, info->version);
			RET_ERR(PM_ERR_DB_WRITE, -1);
		}
		if(_alpm_db_add_pkgincache(db, info) == -1) {
			_alpm_log(PM_LOG_ERROR, _("could not add entry '%s' in cache"), info->name);
		}

		/* update dependency packages' REQUIREDBY fields */
		if(info->depends) {
			_alpm_log(PM_LOG_FLOW2, _("updating dependency packages 'requiredby' fields"));
		}
		for(lp = info->depends; lp; lp = lp->next) {
			pmpkg_t *depinfo;
			pmdepend_t depend;
			if(_alpm_splitdep(lp->data, &depend)) {
				continue;
			}
			depinfo = _alpm_db_get_pkgfromcache(db, depend.name);
			if(depinfo == NULL) {
				/* look for a provides package */
				pmlist_t *provides = _alpm_db_whatprovides(db, depend.name);
				if(provides) {
					/* TODO: should check _all_ packages listed in provides, not just
					 *       the first one.
					 */
					/* use the first one */
					depinfo = _alpm_db_get_pkgfromcache(db, ((pmpkg_t *)provides->data)->name);
					FREELISTPTR(provides);
				}
				if(depinfo == NULL) {
					/* We'll let the front end deal with this case... it may be intentional */
					_alpm_log(PM_LOG_DEBUG, _("could not find dependency '%s'"), depend.name);
					continue;
				}
			}
			_alpm_log(PM_LOG_DEBUG, _("adding '%s' in requiredby field for '%s'"), info->name, depinfo->name);
			depinfo->requiredby = _alpm_list_add(depinfo->requiredby, strdup(info->name));
			if(_alpm_db_write(db, depinfo, INFRQ_DEPENDS)) {
				_alpm_log(PM_LOG_ERROR, _("could not update 'requiredby' database entry %s-%s"),
				          depinfo->name, depinfo->version);
			}
		}

		PROGRESS(trans, cb_state, what, 100, _alpm_list_count(trans->packages), (_alpm_list_count(trans->packages) - _alpm_list_count(targ) +1));
		needdisp = 0;
		EVENT(trans, PM_TRANS_EVT_EXTRACT_DONE, NULL, NULL);
		FREE(what);

		/* run the post-install script if it exists  */
		if(info->scriptlet && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
			snprintf(pm_install, PATH_MAX, "%s%s/%s/%s-%s/install", handle->root, handle->dbpath, db->treename, info->name, info->version);
			if(pmo_upgrade) {
				_alpm_runscriptlet(handle->root, pm_install, "post_upgrade", info->version, oldpkg ? oldpkg->version : NULL, trans);
			} else {
				_alpm_runscriptlet(handle->root, pm_install, "post_install", info->version, NULL, trans);
			}
		}

		EVENT(trans, (pmo_upgrade) ? PM_TRANS_EVT_UPGRADE_DONE : PM_TRANS_EVT_ADD_DONE, info, oldpkg);

		FREEPKG(oldpkg);
	}

	/* run ldconfig if it exists */
	if(handle->trans->state != STATE_INTERRUPTED) {
		_alpm_log(PM_LOG_FLOW1, _("running \"ldconfig -r %s\""), handle->root);
		_alpm_ldconfig(handle->root);
	}

	return(0);
}

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