/* * db.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. */ #include "config.h" #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <string.h> #include <sys/stat.h> #if defined(__APPLE__) || defined(__OpenBSD__) #include <sys/syslimits.h> #include <sys/stat.h> #endif #include <dirent.h> #include <regex.h> #ifdef CYGWIN #include <limits.h> /* PATH_MAX */ #endif /* libalpm */ #include "db.h" #include "alpm_list.h" #include "log.h" #include "util.h" #include "error.h" #include "server.h" #include "handle.h" #include "cache.h" #include "alpm.h" pmdb_t *_alpm_db_new(const char *dbpath, const char *treename) { pmdb_t *db; const size_t pathsize = strlen(dbpath) + strlen(treename) + 2; ALPM_LOG_FUNC; db = calloc(1, sizeof(pmdb_t)); if(db == NULL) { _alpm_log(PM_LOG_ERROR, _("malloc failed: could not allocate %d bytes"), sizeof(pmdb_t)); RET_ERR(PM_ERR_MEMORY, NULL); } db->path = calloc(1, pathsize); if(db->path == NULL) { _alpm_log(PM_LOG_ERROR, _("malloc failed: could not allocate %d bytes"), pathsize); FREE(db); RET_ERR(PM_ERR_MEMORY, NULL); } sprintf(db->path, "%s%s/", dbpath, treename); strncpy(db->treename, treename, PATH_MAX); return(db); } void _alpm_db_free(pmdb_t *db) { ALPM_LOG_FUNC; alpm_list_t *tmp; for(tmp = db->servers; tmp; tmp = alpm_list_next(tmp)) { _alpm_server_free(tmp->data); } FREE(db->path); FREE(db); return; } int _alpm_db_cmp(const void *db1, const void *db2) { ALPM_LOG_FUNC; return(strcmp(((pmdb_t *)db1)->treename, ((pmdb_t *)db2)->treename)); } alpm_list_t *_alpm_db_search(pmdb_t *db, alpm_list_t *needles) { alpm_list_t *i, *j, *k, *ret = NULL; ALPM_LOG_FUNC; for(i = needles; i; i = i->next) { char *targ; regex_t reg; if(i->data == NULL) { continue; } targ = i->data; _alpm_log(PM_LOG_DEBUG, "searching for target '%s'", targ); if(regcomp(®, targ, REG_EXTENDED | REG_NOSUB | REG_ICASE | REG_NEWLINE) != 0) { RET_ERR(PM_ERR_INVALID_REGEX, NULL); } for(j = _alpm_db_get_pkgcache(db); j; j = j->next) { pmpkg_t *pkg = j->data; const char *matched = NULL; /* check name */ if (regexec(®, alpm_pkg_get_name(pkg), 0, 0, 0) == 0) { matched = alpm_pkg_get_name(pkg); } /* check desc */ else if (regexec(®, alpm_pkg_get_desc(pkg), 0, 0, 0) == 0) { matched = alpm_pkg_get_desc(pkg); } /* check provides */ /* TODO: should we be doing this, and should we print something * differently when we do match it since it isn't currently printed? */ else { for(k = alpm_pkg_get_provides(pkg); k; k = k->next) { if (regexec(®, k->data, 0, 0, 0) == 0) { matched = k->data; break; } } } if(matched != NULL) { _alpm_log(PM_LOG_DEBUG, " search target '%s' matched '%s'", targ, matched); ret = alpm_list_add(ret, pkg); } } regfree(®); } return(ret); } pmdb_t *_alpm_db_register(const char *treename, alpm_cb_db_register callback) { struct stat buf; pmdb_t *db; const char *dbpath; char path[PATH_MAX]; ALPM_LOG_FUNC; if(strcmp(treename, "local") == 0) { if(handle->db_local != NULL) { _alpm_log(PM_LOG_WARNING, _("attempt to re-register the 'local' DB")); RET_ERR(PM_ERR_DB_NOT_NULL, NULL); } } else { alpm_list_t *i; for(i = handle->dbs_sync; i; i = i->next) { pmdb_t *sdb = i->data; if(strcmp(treename, sdb->treename) == 0) { _alpm_log(PM_LOG_DEBUG, _("attempt to re-register the '%s' database, using existing"), sdb->treename); return sdb; } } } _alpm_log(PM_LOG_DEBUG, _("registering database '%s'"), treename); /* make sure the database directory exists */ dbpath = alpm_option_get_dbpath(); snprintf(path, PATH_MAX, "%s%s", dbpath, treename); if(stat(path, &buf) != 0 || !S_ISDIR(buf.st_mode)) { _alpm_log(PM_LOG_DEBUG, _("database directory '%s' does not exist, creating it"), path); if(_alpm_makepath(path) != 0) { RET_ERR(PM_ERR_SYSTEM, NULL); } } db = _alpm_db_new(handle->dbpath, treename); if(db == NULL) { RET_ERR(PM_ERR_DB_CREATE, NULL); } _alpm_log(PM_LOG_DEBUG, _("opening database '%s'"), db->treename); if(_alpm_db_open(db) == -1) { _alpm_db_free(db); RET_ERR(PM_ERR_DB_OPEN, NULL); } /* Only call callback on NEW registration. */ if(callback) callback(treename, db); if(strcmp(treename, "local") == 0) { handle->db_local = db; } else { handle->dbs_sync = alpm_list_add(handle->dbs_sync, db); } return(db); } const char SYMEXPORT *alpm_db_get_name(pmdb_t *db) { ALPM_LOG_FUNC; /* Sanity checks */ ASSERT(handle != NULL, return(NULL)); ASSERT(db != NULL, return(NULL)); return db->treename; } const char *alpm_db_get_url(pmdb_t *db) { char path[PATH_MAX]; pmserver_t *s; ALPM_LOG_FUNC; /* Sanity checks */ ASSERT(handle != NULL, return(NULL)); ASSERT(db != NULL, return(NULL)); s = (pmserver_t*)db->servers->data; snprintf(path, PATH_MAX, "%s://%s%s", s->s_url->scheme, s->s_url->host, s->s_url->doc); return strdup(path); } /* vim: set ts=2 sw=2 noet: */