lib/libalpm/trans.c

   1 /*
   2  *  trans.c
   3  *
   4  *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
   5  *  Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
   6  *  Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
   7  *  Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  22  *  USA.
  23  */
  24
  25 #include "config.h"
  26
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <sys/wait.h>
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33 #include <sys/statvfs.h>
  34 #include <unistd.h>
  35 #include <errno.h>
  36
  37 /* libalpm */
  38 #include "trans.h"
  39 #include "alpm_list.h"
  40 #include "error.h"
  41 #include "package.h"
  42 #include "util.h"
  43 #include "log.h"
  44 #include "handle.h"
  45 #include "add.h"
  46 #include "remove.h"
  47 #include "sync.h"
  48 #include "alpm.h"
  49 #include "deps.h"
  50 #include "cache.h"
  51
  52 /** \addtogroup alpm_trans Transaction Functions
  53  * @brief Functions to manipulate libalpm transactions
  54  * @{
  55  */
  56
  57 /** Initialize the transaction.
  58  * @param type type of the transaction
  59  * @param flags flags of the transaction (like nodeps, etc)
  60  * @param event event callback function pointer
  61  * @param conv question callback function pointer
  62  * @param progress progress callback function pointer
  63  * @return 0 on success, -1 on error (pm_errno is set accordingly)
  64  */
  65 int SYMEXPORT alpm_trans_init(pmtranstype_t type, pmtransflag_t flags,
  66                               alpm_trans_cb_event event, alpm_trans_cb_conv conv,
  67                               alpm_trans_cb_progress progress)
  68 {
  69         ALPM_LOG_FUNC;
  70
  71         /* Sanity checks */
  72         ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
  73
  74         ASSERT(handle->trans == NULL, RET_ERR(PM_ERR_TRANS_NOT_NULL, -1));
  75
  76         /* lock db */
  77         handle->lckfd = _alpm_lckmk();
  78         if(handle->lckfd == -1) {
  79                 RET_ERR(PM_ERR_HANDLE_LOCK, -1);
  80         }
  81
  82         handle->trans = _alpm_trans_new();
  83         if(handle->trans == NULL) {
  84                 RET_ERR(PM_ERR_MEMORY, -1);
  85         }
  86
  87         return(_alpm_trans_init(handle->trans, type, flags, event, conv, progress));
  88 }
  89
  90 /** Search for packages to upgrade and add them to the transaction.
  91  * @return 0 on success, -1 on error (pm_errno is set accordingly)
  92  */
  93 int SYMEXPORT alpm_trans_sysupgrade()
  94 {
  95         pmtrans_t *trans;
  96
  97         ALPM_LOG_FUNC;
  98
  99         ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
 100
 101         trans = handle->trans;
 102         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 103         ASSERT(trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
 104         ASSERT(trans->type == PM_TRANS_TYPE_SYNC, RET_ERR(PM_ERR_TRANS_TYPE, -1));
 105
 106         return(_alpm_trans_sysupgrade(trans));
 107 }
 108
 109 /** Add a target to the transaction.
 110  * @param target the name of the target to add
 111  * @return 0 on success, -1 on error (pm_errno is set accordingly)
 112  */
 113 int SYMEXPORT alpm_trans_addtarget(char *target)
 114 {
 115         pmtrans_t *trans;
 116
 117         ALPM_LOG_FUNC;
 118
 119         /* Sanity checks */
 120         ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
 121         ASSERT(target != NULL && strlen(target) != 0, RET_ERR(PM_ERR_WRONG_ARGS, -1));
 122
 123         trans = handle->trans;
 124         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 125         ASSERT(trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
 126
 127         return(_alpm_trans_addtarget(trans, target));
 128 }
 129
 130 /** Prepare a transaction.
 131  * @param data the address of an alpm_list where detailed description
 132  * of an error can be dumped (ie. list of conflicting files)
 133  * @return 0 on success, -1 on error (pm_errno is set accordingly)
 134  */
 135 int SYMEXPORT alpm_trans_prepare(alpm_list_t **data)
 136 {
 137         ALPM_LOG_FUNC;
 138
 139         /* Sanity checks */
 140         ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
 141         ASSERT(data != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
 142
 143         ASSERT(handle->trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 144         ASSERT(handle->trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
 145
 146         return(_alpm_trans_prepare(handle->trans, data));
 147 }
 148
 149 /** Commit a transaction.
 150  * @param data the address of an alpm_list where detailed description
 151  * of an error can be dumped (ie. list of conflicting files)
 152  * @return 0 on success, -1 on error (pm_errno is set accordingly)
 153  */
 154 int SYMEXPORT alpm_trans_commit(alpm_list_t **data)
 155 {
 156         ALPM_LOG_FUNC;
 157
 158         /* Sanity checks */
 159         ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
 160
 161         ASSERT(handle->trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 162         ASSERT(handle->trans->state == STATE_PREPARED, RET_ERR(PM_ERR_TRANS_NOT_PREPARED, -1));
 163
 164         return(_alpm_trans_commit(handle->trans, data));
 165 }
 166
 167 /** Interrupt a transaction.
 168  * @return 0 on success, -1 on error (pm_errno is set accordingly)
 169  */
 170 int SYMEXPORT alpm_trans_interrupt()
 171 {
 172         pmtrans_t *trans;
 173
 174         ALPM_LOG_FUNC;
 175
 176         /* Sanity checks */
 177         ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
 178
 179         trans = handle->trans;
 180         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 181         ASSERT(trans->state == STATE_COMMITING || trans->state == STATE_INTERRUPTED,
 182                         RET_ERR(PM_ERR_TRANS_TYPE, -1));
 183
 184         trans->state = STATE_INTERRUPTED;
 185
 186         return(0);
 187 }
 188
 189 /** Release a transaction.
 190  * @return 0 on success, -1 on error (pm_errno is set accordingly)
 191  */
 192 int SYMEXPORT alpm_trans_release()
 193 {
 194         pmtrans_t *trans;
 195
 196         ALPM_LOG_FUNC;
 197
 198         /* Sanity checks */
 199         ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
 200
 201         trans = handle->trans;
 202         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 203         ASSERT(trans->state != STATE_IDLE, RET_ERR(PM_ERR_TRANS_NULL, -1));
 204
 205         _alpm_trans_free(trans);
 206         handle->trans = NULL;
 207
 208         /* unlock db */
 209         if(handle->lckfd != -1) {
 210                 close(handle->lckfd);
 211                 handle->lckfd = -1;
 212         }
 213         if(_alpm_lckrm()) {
 214                 _alpm_log(PM_LOG_WARNING, _("could not remove lock file %s\n"),
 215                                 alpm_option_get_lockfile());
 216                 alpm_logaction("warning: could not remove lock file %s\n",
 217                                 alpm_option_get_lockfile());
 218         }
 219
 220         return(0);
 221 }
 222
 223 /** @} */
 224
 225 pmtrans_t *_alpm_trans_new()
 226 {
 227         pmtrans_t *trans;
 228
 229         ALPM_LOG_FUNC;
 230
 231         CALLOC(trans, 1, sizeof(pmtrans_t), RET_ERR(PM_ERR_MEMORY, NULL));
 232
 233         trans->targets = NULL;
 234         trans->packages = NULL;
 235         trans->skip_add = NULL;
 236         trans->skip_remove = NULL;
 237         trans->type = 0;
 238         trans->flags = 0;
 239         trans->cb_event = NULL;
 240         trans->cb_conv = NULL;
 241         trans->cb_progress = NULL;
 242         trans->state = STATE_IDLE;
 243
 244         return(trans);
 245 }
 246
 247 void _alpm_trans_free(pmtrans_t *trans)
 248 {
 249         ALPM_LOG_FUNC;
 250
 251         if(trans == NULL) {
 252                 return;
 253         }
 254
 255         FREELIST(trans->targets);
 256         if(trans->type == PM_TRANS_TYPE_SYNC) {
 257                 alpm_list_free_inner(trans->packages, (alpm_list_fn_free)_alpm_sync_free);
 258         } else {
 259                 alpm_list_free_inner(trans->packages, (alpm_list_fn_free)_alpm_pkg_free);
 260         }
 261         alpm_list_free(trans->packages);
 262
 263         FREELIST(trans->skip_add);
 264         FREELIST(trans->skip_remove);
 265
 266         FREE(trans);
 267 }
 268
 269 int _alpm_trans_init(pmtrans_t *trans, pmtranstype_t type, pmtransflag_t flags,
 270                      alpm_trans_cb_event event, alpm_trans_cb_conv conv,
 271                      alpm_trans_cb_progress progress)
 272 {
 273         ALPM_LOG_FUNC;
 274
 275         /* Sanity checks */
 276         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 277
 278         trans->type = type;
 279         trans->flags = flags;
 280         trans->cb_event = event;
 281         trans->cb_conv = conv;
 282         trans->cb_progress = progress;
 283         trans->state = STATE_INITIALIZED;
 284
 285         return(0);
 286 }
 287
 288 int _alpm_trans_sysupgrade(pmtrans_t *trans)
 289 {
 290         ALPM_LOG_FUNC;
 291
 292         /* Sanity checks */
 293         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 294
 295         return(_alpm_sync_sysupgrade(trans, handle->db_local, handle->dbs_sync,
 296                                 &(trans->packages)));
 297 }
 298
 299 /** Add a target to the transaction.
 300  * @param trans the current transaction
 301  * @param target the name of the target to add
 302  * @return 0 on success, -1 on error (pm_errno is set accordingly)
 303  */
 304 int _alpm_trans_addtarget(pmtrans_t *trans, char *target)
 305 {
 306         ALPM_LOG_FUNC;
 307
 308         /* Sanity checks */
 309         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 310         ASSERT(target != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
 311
 312         if(alpm_list_find_str(trans->targets, target)) {
 313                 return(0);
 314                 //RET_ERR(PM_ERR_TRANS_DUP_TARGET, -1);
 315         }
 316
 317         switch(trans->type) {
 318                 case PM_TRANS_TYPE_ADD:
 319                 case PM_TRANS_TYPE_UPGRADE:
 320                         if(_alpm_add_loadtarget(trans, handle->db_local, target) == -1) {
 321                                 /* pm_errno is set by _alpm_add_loadtarget() */
 322                                 return(-1);
 323                         }
 324                 break;
 325                 case PM_TRANS_TYPE_REMOVE:
 326                 case PM_TRANS_TYPE_REMOVEUPGRADE:
 327                         if(_alpm_remove_loadtarget(trans, handle->db_local, target) == -1) {
 328                                 /* pm_errno is set by _alpm_remove_loadtarget() */
 329                                 return(-1);
 330                         }
 331                 break;
 332                 case PM_TRANS_TYPE_SYNC:
 333                         if(_alpm_sync_addtarget(trans, handle->db_local, handle->dbs_sync, target) == -1) {
 334                                 /* pm_errno is set by _alpm_sync_loadtarget() */
 335                                 return(-1);
 336                         }
 337                 break;
 338         }
 339
 340         trans->targets = alpm_list_add(trans->targets, strdup(target));
 341
 342         return(0);
 343 }
 344
 345 int _alpm_trans_prepare(pmtrans_t *trans, alpm_list_t **data)
 346 {
 347         *data = NULL;
 348
 349         ALPM_LOG_FUNC;
 350
 351         /* Sanity checks */
 352         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 353
 354         /* If there's nothing to do, return without complaining */
 355         if(trans->packages == NULL) {
 356                 return(0);
 357         }
 358
 359         switch(trans->type) {
 360                 case PM_TRANS_TYPE_ADD:
 361                 case PM_TRANS_TYPE_UPGRADE:
 362                         if(_alpm_add_prepare(trans, handle->db_local, data) == -1) {
 363                                 /* pm_errno is set by _alpm_add_prepare() */
 364                                 return(-1);
 365                         }
 366                 break;
 367                 case PM_TRANS_TYPE_REMOVE:
 368                 case PM_TRANS_TYPE_REMOVEUPGRADE:
 369                         if(_alpm_remove_prepare(trans, handle->db_local, data) == -1) {
 370                                 /* pm_errno is set by _alpm_remove_prepare() */
 371                                 return(-1);
 372                         }
 373                 break;
 374                 case PM_TRANS_TYPE_SYNC:
 375                         if(_alpm_sync_prepare(trans, handle->db_local, handle->dbs_sync, data) == -1) {
 376                                 /* pm_errno is set by _alpm_sync_prepare() */
 377                                 return(-1);
 378                         }
 379                 break;
 380         }
 381
 382         trans->state = STATE_PREPARED;
 383
 384         return(0);
 385 }
 386
 387 int _alpm_trans_commit(pmtrans_t *trans, alpm_list_t **data)
 388 {
 389         ALPM_LOG_FUNC;
 390
 391         if(data!=NULL)
 392                 *data = NULL;
 393
 394         /* Sanity checks */
 395         ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 396
 397         /* If there's nothing to do, return without complaining */
 398         if(trans->packages == NULL) {
 399                 return(0);
 400         }
 401
 402         trans->state = STATE_COMMITING;
 403
 404         switch(trans->type) {
 405                 case PM_TRANS_TYPE_ADD:
 406                 case PM_TRANS_TYPE_UPGRADE:
 407                         if(_alpm_add_commit(trans, handle->db_local) == -1) {
 408                                 /* pm_errno is set by _alpm_add_commit() */
 409                                 return(-1);
 410                         }
 411                 break;
 412                 case PM_TRANS_TYPE_REMOVE:
 413                 case PM_TRANS_TYPE_REMOVEUPGRADE:
 414                         if(_alpm_remove_commit(trans, handle->db_local) == -1) {
 415                                 /* pm_errno is set by _alpm_remove_commit() */
 416                                 return(-1);
 417                         }
 418                 break;
 419                 case PM_TRANS_TYPE_SYNC:
 420                         if(_alpm_sync_commit(trans, handle->db_local, data) == -1) {
 421                                 /* pm_errno is set by _alpm_sync_commit() */
 422                                 return(-1);
 423                         }
 424                 break;
 425         }
 426
 427         trans->state = STATE_COMMITED;
 428
 429         return(0);
 430 }
 431
 432 /* A cheap grep for text files, returns 1 if a substring
 433  * was found in the text file fn, 0 if it wasn't
 434  */
 435 static int grep(const char *fn, const char *needle)
 436 {
 437         FILE *fp;
 438
 439         if((fp = fopen(fn, "r")) == NULL) {
 440                 return(0);
 441         }
 442         while(!feof(fp)) {
 443                 char line[1024];
 444                 fgets(line, 1024, fp);
 445                 if(feof(fp)) {
 446                         continue;
 447                 }
 448                 if(strstr(line, needle)) {
 449                         fclose(fp);
 450                         return(1);
 451                 }
 452         }
 453         fclose(fp);
 454         return(0);
 455 }
 456
 457 int _alpm_runscriptlet(const char *root, const char *installfn,
 458                                                                                          const char *script, const char *ver,
 459                                                                                          const char *oldver, pmtrans_t *trans)
 460 {
 461         char scriptfn[PATH_MAX];
 462         char cmdline[PATH_MAX];
 463         char tmpdir[PATH_MAX];
 464         char cwd[PATH_MAX];
 465         char *scriptpath;
 466         struct stat buf;
 467         pid_t pid;
 468         int clean_tmpdir = 0;
 469         int restore_cwd = 0;
 470         int retval = 0;
 471
 472         ALPM_LOG_FUNC;
 473
 474         if(stat(installfn, &buf)) {
 475                 /* not found */
 476                 _alpm_log(PM_LOG_DEBUG, "scriptlet '%s' not found\n", installfn);
 477                 return(0);
 478         }
 479
 480         snprintf(tmpdir, PATH_MAX, "%sbin/sh", root);
 481         if(stat(tmpdir, &buf)) {
 482                 /* not found */
 483                 _alpm_log(PM_LOG_ERROR, _("No /bin/sh in root dir (%s), aborting scriptlet\n"), root);
 484                 return(0);
 485         }
 486
 487         /* creates a directory in $root/tmp/ for copying/extracting the scriptlet */
 488         snprintf(tmpdir, PATH_MAX, "%stmp/", root);
 489         if(stat(tmpdir, &buf)) {
 490                 _alpm_makepath(tmpdir);
 491         }
 492         snprintf(tmpdir, PATH_MAX, "%stmp/alpm_XXXXXX", root);
 493         if(mkdtemp(tmpdir) == NULL) {
 494                 _alpm_log(PM_LOG_ERROR, _("could not create temp directory\n"));
 495                 return(1);
 496         } else {
 497                 clean_tmpdir = 1;
 498         }
 499
 500         /* either extract or copy the scriptlet */
 501         snprintf(scriptfn, PATH_MAX, "%s/.INSTALL", tmpdir);
 502         if(!strcmp(script, "pre_upgrade") || !strcmp(script, "pre_install")) {
 503                 if(_alpm_unpack(installfn, tmpdir, ".INSTALL")) {
 504                         retval = 1;
 505                 }
 506         } else {
 507                 if(_alpm_copyfile(installfn, scriptfn)) {
 508                         _alpm_log(PM_LOG_ERROR, _("could not copy tempfile to %s (%s)\n"), scriptfn, strerror(errno));
 509                         retval = 1;
 510                 }
 511         }
 512         if(retval == 1) {
 513                 goto cleanup;
 514         }
 515
 516         /* mark the scriptlet as executable */
 517         chmod(scriptfn, 0755);
 518
 519         /* chop off the root so we can find the tmpdir in the chroot */
 520         scriptpath = scriptfn + strlen(root) - 1;
 521
 522         if(!grep(scriptfn, script)) {
 523                 /* script not found in scriptlet file */
 524                 goto cleanup;
 525         }
 526
 527         /* save the cwd so we can restore it later */
 528         if(getcwd(cwd, PATH_MAX) == NULL) {
 529                 _alpm_log(PM_LOG_ERROR, _("could not get current working directory\n"));
 530         } else {
 531                 restore_cwd = 1;
 532         }
 533
 534         /* just in case our cwd was removed in the upgrade operation */
 535         if(chdir(root) != 0) {
 536                 _alpm_log(PM_LOG_ERROR, _("could not change directory to %s (%s)\n"), root, strerror(errno));
 537                 goto cleanup;
 538         }
 539
 540         _alpm_log(PM_LOG_DEBUG, "executing %s script...\n", script);
 541
 542         if(oldver) {
 543                 snprintf(cmdline, PATH_MAX, "%s %s %s %s",
 544                                 scriptpath, script, ver, oldver);
 545         } else {
 546                 snprintf(cmdline, PATH_MAX, "%s %s %s",
 547                                 scriptpath, script, ver);
 548         }
 549         _alpm_log(PM_LOG_DEBUG, "%s\n", cmdline);
 550
 551         /* fork- parent and child each have seperate code blocks below */
 552         pid = fork();
 553         if(pid == -1) {
 554                 _alpm_log(PM_LOG_ERROR, _("could not fork a new process (%s)\n"), strerror(errno));
 555                 retval = 1;
 556                 goto cleanup;
 557         }
 558
 559         if(pid == 0) {
 560                 FILE *pipe;
 561                 /* this code runs for the child only (the actual chroot/exec) */
 562                 _alpm_log(PM_LOG_DEBUG, "chrooting in %s\n", root);
 563                 if(chroot(root) != 0) {
 564                         _alpm_log(PM_LOG_ERROR, _("could not change the root directory (%s)\n"),
 565                                         strerror(errno));
 566                         exit(1);
 567                 }
 568                 if(chdir("/") != 0) {
 569                         _alpm_log(PM_LOG_ERROR, _("could not change directory to / (%s)\n"),
 570                                         strerror(errno));
 571                         exit(1);
 572                 }
 573                 umask(0022);
 574                 _alpm_log(PM_LOG_DEBUG, "executing \"%s\"\n", cmdline);
 575                 /* execl("/bin/sh", "sh", "-c", cmdline, (char *)NULL); */
 576                 pipe = popen(cmdline, "r");
 577                 if(!pipe) {
 578                         _alpm_log(PM_LOG_ERROR, _("call to popen failed (%s)"),
 579                                         strerror(errno));
 580                         retval = 1;
 581                         goto cleanup;
 582                 }
 583                 while(!feof(pipe)) {
 584                         char line[PATH_MAX];
 585                         if(fgets(line, PATH_MAX, pipe) == NULL)
 586                                 break;
 587                         alpm_logaction("%s", line);
 588                         EVENT(trans, PM_TRANS_EVT_SCRIPTLET_INFO, line, NULL);
 589                 }
 590                 exit(0);
 591         } else {
 592                 /* this code runs for the parent only (wait on the child) */
 593                 pid_t retpid;
 594                 int status;
 595                 retpid = waitpid(pid, &status, 0);
 596                 if(retpid == -1) {
 597                         _alpm_log(PM_LOG_ERROR, _("call to waitpid failed (%s)\n"),
 598                                   strerror(errno));
 599                         retval = 1;
 600                         goto cleanup;
 601                 } else {
 602                         /* check the return status, make sure it is 0 (success) */
 603                         if(WIFEXITED(status)) {
 604                                 _alpm_log(PM_LOG_DEBUG, "call to waitpid succeeded\n");
 605                                 if(WEXITSTATUS(status) != 0) {
 606                                         _alpm_log(PM_LOG_ERROR, _("scriptlet failed to execute correctly\n"));
 607                                         retval = 1;
 608                                 }
 609                         }
 610                 }
 611         }
 612
 613 cleanup:
 614         if(clean_tmpdir && _alpm_rmrf(tmpdir)) {
 615                 _alpm_log(PM_LOG_WARNING, _("could not remove tmpdir %s\n"), tmpdir);
 616         }
 617         if(restore_cwd) {
 618                 chdir(cwd);
 619         }
 620
 621         return(retval);
 622 }
 623
 624 pmtranstype_t SYMEXPORT alpm_trans_get_type()
 625 {
 626         /* Sanity checks */
 627         ASSERT(handle != NULL, return(-1));
 628         ASSERT(handle->trans != NULL, return(-1));
 629
 630         return handle->trans->type;
 631 }
 632
 633 unsigned int SYMEXPORT alpm_trans_get_flags()
 634 {
 635         /* Sanity checks */
 636         ASSERT(handle != NULL, return(-1));
 637         ASSERT(handle->trans != NULL, return(-1));
 638
 639         return handle->trans->flags;
 640 }
 641
 642 alpm_list_t SYMEXPORT * alpm_trans_get_targets()
 643 {
 644         /* Sanity checks */
 645         ASSERT(handle != NULL, return(NULL));
 646         ASSERT(handle->trans != NULL, return(NULL));
 647
 648         return handle->trans->targets;
 649 }
 650
 651 alpm_list_t SYMEXPORT * alpm_trans_get_pkgs()
 652 {
 653         /* Sanity checks */
 654         ASSERT(handle != NULL, return(NULL));
 655         ASSERT(handle->trans != NULL, return(NULL));
 656
 657         return handle->trans->packages;
 658 }
 659 /* vim: set ts=2 sw=2 noet: */