lib/libalpm/handle.c

   1 /*
   2  *  handle.c
   3  *
   4  *  Copyright (c) 2002-2007 by Judd Vinet <jvinet@zeroflux.org>
   5  *  Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
   6  *  Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "config.h"
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <limits.h>
  27 #include <sys/types.h>
  28 #include <syslog.h>
  29 #include <time.h>
  30 #include <sys/stat.h>
  31 #include <errno.h>
  32
  33 /* libalpm */
  34 #include "handle.h"
  35 #include "alpm_list.h"
  36 #include "util.h"
  37 #include "log.h"
  38 #include "trans.h"
  39 #include "alpm.h"
  40
  41 /* global var for handle (private to libalpm) */
  42 pmhandle_t *handle = NULL;
  43
  44 pmhandle_t *_alpm_handle_new()
  45 {
  46         pmhandle_t *handle;
  47
  48         ALPM_LOG_FUNC;
  49
  50         CALLOC(handle, 1, sizeof(pmhandle_t), RET_ERR(PM_ERR_MEMORY, NULL));
  51
  52         handle->lckfd = -1;
  53         handle->logstream = NULL;
  54
  55         handle->root = NULL;
  56         handle->dbpath = NULL;
  57         handle->cachedirs = NULL;
  58         handle->lockfile = NULL;
  59         handle->logfile = NULL;
  60         handle->usedelta = 0;
  61
  62         return(handle);
  63 }
  64
  65 void _alpm_handle_free(pmhandle_t *handle)
  66 {
  67         ALPM_LOG_FUNC;
  68
  69         if(handle == NULL) {
  70                 return;
  71         }
  72
  73         /* close logfile */
  74         if(handle->logstream) {
  75                 fclose(handle->logstream);
  76                 handle->logstream= NULL;
  77         }
  78         if(handle->usesyslog) {
  79                 handle->usesyslog = 0;
  80                 closelog();
  81         }
  82
  83         /* free memory */
  84         _alpm_trans_free(handle->trans);
  85         FREE(handle->root);
  86         FREE(handle->dbpath);
  87         FREELIST(handle->cachedirs);
  88         FREE(handle->logfile);
  89         FREE(handle->lockfile);
  90         FREE(handle->xfercommand);
  91         FREELIST(handle->dbs_sync);
  92         FREELIST(handle->noupgrade);
  93         FREELIST(handle->noextract);
  94         FREELIST(handle->ignorepkg);
  95         FREELIST(handle->holdpkg);
  96         FREELIST(handle->ignoregrp);
  97         FREE(handle);
  98 }
  99
 100 alpm_cb_log SYMEXPORT alpm_option_get_logcb()
 101 {
 102         if (handle == NULL) {
 103                 pm_errno = PM_ERR_HANDLE_NULL;
 104                 return NULL;
 105         }
 106         return handle->logcb;
 107 }
 108
 109 alpm_cb_download SYMEXPORT alpm_option_get_dlcb()
 110 {
 111         if (handle == NULL) {
 112                 pm_errno = PM_ERR_HANDLE_NULL;
 113                 return NULL;
 114         }
 115         return handle->dlcb;
 116 }
 117
 118 const char SYMEXPORT *alpm_option_get_root()
 119 {
 120         if (handle == NULL) {
 121                 pm_errno = PM_ERR_HANDLE_NULL;
 122                 return NULL;
 123         }
 124         return handle->root;
 125 }
 126
 127 const char SYMEXPORT *alpm_option_get_dbpath()
 128 {
 129         if (handle == NULL) {
 130                 pm_errno = PM_ERR_HANDLE_NULL;
 131                 return NULL;
 132         }
 133         return handle->dbpath;
 134 }
 135
 136 alpm_list_t SYMEXPORT *alpm_option_get_cachedirs()
 137 {
 138         if (handle == NULL) {
 139                 pm_errno = PM_ERR_HANDLE_NULL;
 140                 return NULL;
 141         }
 142         return handle->cachedirs;
 143 }
 144
 145 const char SYMEXPORT *alpm_option_get_logfile()
 146 {
 147         if (handle == NULL) {
 148                 pm_errno = PM_ERR_HANDLE_NULL;
 149                 return NULL;
 150         }
 151         return handle->logfile;
 152 }
 153
 154 const char SYMEXPORT *alpm_option_get_lockfile()
 155 {
 156         if (handle == NULL) {
 157                 pm_errno = PM_ERR_HANDLE_NULL;
 158                 return NULL;
 159         }
 160         return handle->lockfile;
 161 }
 162
 163 unsigned short SYMEXPORT alpm_option_get_usesyslog()
 164 {
 165         if (handle == NULL) {
 166                 pm_errno = PM_ERR_HANDLE_NULL;
 167                 return -1;
 168         }
 169         return handle->usesyslog;
 170 }
 171
 172 alpm_list_t SYMEXPORT *alpm_option_get_noupgrades()
 173 {
 174         if (handle == NULL) {
 175                 pm_errno = PM_ERR_HANDLE_NULL;
 176                 return NULL;
 177         }
 178         return handle->noupgrade;
 179 }
 180
 181 alpm_list_t SYMEXPORT *alpm_option_get_noextracts()
 182 {
 183         if (handle == NULL) {
 184                 pm_errno = PM_ERR_HANDLE_NULL;
 185                 return NULL;
 186         }
 187         return handle->noextract;
 188 }
 189
 190 alpm_list_t SYMEXPORT *alpm_option_get_ignorepkgs()
 191 {
 192         if (handle == NULL) {
 193                 pm_errno = PM_ERR_HANDLE_NULL;
 194                 return NULL;
 195         }
 196         return handle->ignorepkg;
 197 }
 198
 199 alpm_list_t SYMEXPORT *alpm_option_get_holdpkgs()
 200 {
 201         if (handle == NULL) {
 202                 pm_errno = PM_ERR_HANDLE_NULL;
 203                 return NULL;
 204         }
 205         return handle->holdpkg;
 206 }
 207
 208 alpm_list_t SYMEXPORT *alpm_option_get_ignoregrps()
 209 {
 210         if (handle == NULL) {
 211                 pm_errno = PM_ERR_HANDLE_NULL;
 212                 return NULL;
 213         }
 214         return handle->ignoregrp;
 215 }
 216
 217 const char SYMEXPORT *alpm_option_get_xfercommand()
 218 {
 219         if (handle == NULL) {
 220                 pm_errno = PM_ERR_HANDLE_NULL;
 221                 return NULL;
 222         }
 223         return handle->xfercommand;
 224 }
 225
 226 unsigned short SYMEXPORT alpm_option_get_nopassiveftp()
 227 {
 228         if (handle == NULL) {
 229                 pm_errno = PM_ERR_HANDLE_NULL;
 230                 return -1;
 231         }
 232         return handle->nopassiveftp;
 233 }
 234
 235 pmdb_t SYMEXPORT *alpm_option_get_localdb()
 236 {
 237         if (handle == NULL) {
 238                 pm_errno = PM_ERR_HANDLE_NULL;
 239                 return NULL;
 240         }
 241         return handle->db_local;
 242 }
 243
 244 alpm_list_t SYMEXPORT *alpm_option_get_syncdbs()
 245 {
 246         if (handle == NULL) {
 247                 pm_errno = PM_ERR_HANDLE_NULL;
 248                 return NULL;
 249         }
 250         return handle->dbs_sync;
 251 }
 252
 253 void SYMEXPORT alpm_option_set_logcb(alpm_cb_log cb)
 254 {
 255         if (handle == NULL) {
 256                 pm_errno = PM_ERR_HANDLE_NULL;
 257                 return;
 258         }
 259         handle->logcb = cb;
 260 }
 261
 262 void SYMEXPORT alpm_option_set_dlcb(alpm_cb_download cb)
 263 {
 264         if (handle == NULL) {
 265                 pm_errno = PM_ERR_HANDLE_NULL;
 266                 return;
 267         }
 268         handle->dlcb = cb;
 269 }
 270
 271 int SYMEXPORT alpm_option_set_root(const char *root)
 272 {
 273         struct stat st;
 274         char *realroot;
 275         size_t rootlen;
 276
 277         ALPM_LOG_FUNC;
 278
 279         if(!root) {
 280                 pm_errno = PM_ERR_WRONG_ARGS;
 281                 return(-1);
 282         }
 283         if(stat(root, &st) == -1 || !S_ISDIR(st.st_mode)) {
 284                 pm_errno = PM_ERR_NOT_A_DIR;
 285                 return(-1);
 286         }
 287
 288         realroot = calloc(PATH_MAX+1, sizeof(char));
 289         if(!realpath(root, realroot)) {
 290                 pm_errno = PM_ERR_NOT_A_DIR;
 291                 return(-1);
 292         }
 293
 294         /* verify root ends in a '/' */
 295         rootlen = strlen(realroot);
 296         if(realroot[rootlen-1] != '/') {
 297                 rootlen += 1;
 298         }
 299         if(handle->root) {
 300                 FREE(handle->root);
 301         }
 302         handle->root = calloc(rootlen + 1, sizeof(char));
 303         strncpy(handle->root, realroot, rootlen);
 304         handle->root[rootlen-1] = '/';
 305         FREE(realroot);
 306         _alpm_log(PM_LOG_DEBUG, "option 'root' = %s\n", handle->root);
 307         return(0);
 308 }
 309
 310 int SYMEXPORT alpm_option_set_dbpath(const char *dbpath)
 311 {
 312         struct stat st;
 313         size_t dbpathlen, lockfilelen;
 314         const char *lf = "db.lck";
 315
 316         ALPM_LOG_FUNC;
 317
 318         if(!dbpath) {
 319                 pm_errno = PM_ERR_WRONG_ARGS;
 320                 return(-1);
 321         }
 322         if(stat(dbpath, &st) == -1 || !S_ISDIR(st.st_mode)) {
 323                 pm_errno = PM_ERR_NOT_A_DIR;
 324                 return(-1);
 325         }
 326         /* verify dbpath ends in a '/' */
 327         dbpathlen = strlen(dbpath);
 328         if(dbpath[dbpathlen-1] != '/') {
 329                 dbpathlen += 1;
 330         }
 331         if(handle->dbpath) {
 332                 FREE(handle->dbpath);
 333         }
 334         handle->dbpath = calloc(dbpathlen+1, sizeof(char));
 335         strncpy(handle->dbpath, dbpath, dbpathlen);
 336         handle->dbpath[dbpathlen-1] = '/';
 337         _alpm_log(PM_LOG_DEBUG, "option 'dbpath' = %s\n", handle->dbpath);
 338
 339         if(handle->lockfile) {
 340                 FREE(handle->lockfile);
 341         }
 342         lockfilelen = strlen(handle->dbpath) + strlen(lf) + 1;
 343         handle->lockfile = calloc(lockfilelen, sizeof(char));
 344         snprintf(handle->lockfile, lockfilelen, "%s%s", handle->dbpath, lf);
 345         _alpm_log(PM_LOG_DEBUG, "option 'lockfile' = %s\n", handle->lockfile);
 346         return(0);
 347 }
 348
 349 int SYMEXPORT alpm_option_add_cachedir(const char *cachedir)
 350 {
 351         char *newcachedir;
 352         size_t cachedirlen;
 353
 354         ALPM_LOG_FUNC;
 355
 356         if(!cachedir) {
 357                 pm_errno = PM_ERR_WRONG_ARGS;
 358                 return(-1);
 359         }
 360         /* don't stat the cachedir yet, as it may not even be needed. we can
 361          * fail later if it is needed and the path is invalid. */
 362
 363         /* verify cachedir ends in a '/' */
 364         cachedirlen = strlen(cachedir);
 365         if(cachedir[cachedirlen-1] != '/') {
 366                 cachedirlen += 1;
 367         }
 368         newcachedir = calloc(cachedirlen + 1, sizeof(char));
 369         strncpy(newcachedir, cachedir, cachedirlen);
 370         newcachedir[cachedirlen-1] = '/';
 371         handle->cachedirs = alpm_list_add(handle->cachedirs, newcachedir);
 372         _alpm_log(PM_LOG_DEBUG, "option 'cachedir' = %s\n", newcachedir);
 373         return(0);
 374 }
 375
 376 void SYMEXPORT alpm_option_set_cachedirs(alpm_list_t *cachedirs)
 377 {
 378         if(handle->cachedirs) FREELIST(handle->cachedirs);
 379         if(cachedirs) handle->cachedirs = cachedirs;
 380 }
 381
 382 int SYMEXPORT alpm_option_remove_cachedir(const char *cachedir)
 383 {
 384         char *vdata = NULL;
 385         char *newcachedir;
 386         size_t cachedirlen;
 387         /* verify cachedir ends in a '/' */
 388         cachedirlen = strlen(cachedir);
 389         if(cachedir[cachedirlen-1] != '/') {
 390                 cachedirlen += 1;
 391         }
 392         newcachedir = calloc(cachedirlen + 1, sizeof(char));
 393         strncpy(newcachedir, cachedir, cachedirlen);
 394         newcachedir[cachedirlen-1] = '/';
 395         handle->cachedirs = alpm_list_remove_str(handle->cachedirs, newcachedir, &vdata);
 396         FREE(newcachedir);
 397         if(vdata != NULL) {
 398                 FREE(vdata);
 399                 return(1);
 400         }
 401         return(0);
 402 }
 403
 404 int SYMEXPORT alpm_option_set_logfile(const char *logfile)
 405 {
 406         char *oldlogfile = handle->logfile;
 407
 408         ALPM_LOG_FUNC;
 409
 410         if(!logfile) {
 411                 pm_errno = PM_ERR_WRONG_ARGS;
 412                 return(-1);
 413         }
 414
 415         handle->logfile = strdup(logfile);
 416
 417         /* free the old logfile path string, and close the stream so logaction
 418          * will reopen a new stream on the new logfile */
 419         if(oldlogfile) {
 420                 FREE(oldlogfile);
 421         }
 422         if(handle->logstream) {
 423                 fclose(handle->logstream);
 424                 handle->logstream = NULL;
 425         }
 426         _alpm_log(PM_LOG_DEBUG, "option 'logfile' = %s\n", handle->logfile);
 427         return(0);
 428 }
 429
 430 void SYMEXPORT alpm_option_set_usesyslog(unsigned short usesyslog)
 431 {
 432         handle->usesyslog = usesyslog;
 433 }
 434
 435 void SYMEXPORT alpm_option_add_noupgrade(const char *pkg)
 436 {
 437         handle->noupgrade = alpm_list_add(handle->noupgrade, strdup(pkg));
 438 }
 439
 440 void SYMEXPORT alpm_option_set_noupgrades(alpm_list_t *noupgrade)
 441 {
 442         if(handle->noupgrade) FREELIST(handle->noupgrade);
 443         if(noupgrade) handle->noupgrade = noupgrade;
 444 }
 445
 446 int SYMEXPORT alpm_option_remove_noupgrade(const char *pkg)
 447 {
 448         char *vdata = NULL;
 449         handle->noupgrade = alpm_list_remove_str(handle->noupgrade, pkg, &vdata);
 450         if(vdata != NULL) {
 451                 FREE(vdata);
 452                 return(1);
 453         }
 454         return(0);
 455 }
 456
 457 void SYMEXPORT alpm_option_add_noextract(const char *pkg)
 458 {
 459         handle->noextract = alpm_list_add(handle->noextract, strdup(pkg));
 460 }
 461
 462 void SYMEXPORT alpm_option_set_noextracts(alpm_list_t *noextract)
 463 {
 464         if(handle->noextract) FREELIST(handle->noextract);
 465         if(noextract) handle->noextract = noextract;
 466 }
 467
 468 int SYMEXPORT alpm_option_remove_noextract(const char *pkg)
 469 {
 470         char *vdata = NULL;
 471         handle->noextract = alpm_list_remove_str(handle->noextract, pkg, &vdata);
 472         if(vdata != NULL) {
 473                 FREE(vdata);
 474                 return(1);
 475         }
 476         return(0);
 477 }
 478
 479 void SYMEXPORT alpm_option_add_ignorepkg(const char *pkg)
 480 {
 481         handle->ignorepkg = alpm_list_add(handle->ignorepkg, strdup(pkg));
 482 }
 483
 484 void SYMEXPORT alpm_option_set_ignorepkgs(alpm_list_t *ignorepkgs)
 485 {
 486         if(handle->ignorepkg) FREELIST(handle->ignorepkg);
 487         if(ignorepkgs) handle->ignorepkg = ignorepkgs;
 488 }
 489
 490 int SYMEXPORT alpm_option_remove_ignorepkg(const char *pkg)
 491 {
 492         char *vdata = NULL;
 493         handle->ignorepkg = alpm_list_remove_str(handle->ignorepkg, pkg, &vdata);
 494         if(vdata != NULL) {
 495                 FREE(vdata);
 496                 return(1);
 497         }
 498         return(0);
 499 }
 500
 501 void SYMEXPORT alpm_option_add_holdpkg(const char *pkg)
 502 {
 503         handle->holdpkg = alpm_list_add(handle->holdpkg, strdup(pkg));
 504 }
 505
 506 void SYMEXPORT alpm_option_set_holdpkgs(alpm_list_t *holdpkgs)
 507 {
 508         if(handle->holdpkg) FREELIST(handle->holdpkg);
 509         if(holdpkgs) handle->holdpkg = holdpkgs;
 510 }
 511
 512 int SYMEXPORT alpm_option_remove_holdpkg(const char *pkg)
 513 {
 514         char *vdata = NULL;
 515         handle->holdpkg = alpm_list_remove_str(handle->holdpkg, pkg, &vdata);
 516         if(vdata != NULL) {
 517                 FREE(vdata);
 518                 return(1);
 519         }
 520         return(0);
 521 }
 522
 523 void SYMEXPORT alpm_option_add_ignoregrp(const char *grp)
 524 {
 525         handle->ignoregrp = alpm_list_add(handle->ignoregrp, strdup(grp));
 526 }
 527
 528 void SYMEXPORT alpm_option_set_ignoregrps(alpm_list_t *ignoregrps)
 529 {
 530         if(handle->ignoregrp) FREELIST(handle->ignoregrp);
 531         if(ignoregrps) handle->ignoregrp = ignoregrps;
 532 }
 533
 534 int SYMEXPORT alpm_option_remove_ignoregrp(const char *grp)
 535 {
 536         char *vdata = NULL;
 537         handle->ignoregrp = alpm_list_remove_str(handle->ignoregrp, grp, &vdata);
 538         if(vdata != NULL) {
 539                 FREE(vdata);
 540                 return(1);
 541         }
 542         return(0);
 543 }
 544
 545 void SYMEXPORT alpm_option_set_xfercommand(const char *cmd)
 546 {
 547         if(handle->xfercommand) FREE(handle->xfercommand);
 548         if(cmd) handle->xfercommand = strdup(cmd);
 549 }
 550
 551 void SYMEXPORT alpm_option_set_nopassiveftp(unsigned short nopasv)
 552 {
 553         handle->nopassiveftp = nopasv;
 554 }
 555
 556 void SYMEXPORT alpm_option_set_usedelta(unsigned short usedelta)
 557 {
 558         handle->usedelta = usedelta;
 559 }
 560
 561 /* vim: set ts=2 sw=2 noet: */