| /* |
| * libdpkg - Debian packaging suite library routines |
| * dbdir.c - on-disk database directory functions |
| * |
| * Copyright © 2011 Guillem Jover <guillem@debian.org> |
| * |
| * This 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 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 <compat.h> |
| |
| #include <sys/types.h> |
| |
| #include <stdlib.h> |
| |
| #include <dpkg/dpkg.h> |
| #include <dpkg/dpkg-db.h> |
| |
| static const char *db_dir = ADMINDIR; |
| |
| /** |
| * Set current on-disk database directory. |
| * |
| * The directory is initially set to ADMINDIR, this function can be used to |
| * set the directory to a new value, or to set it to a default value if dir |
| * is NULL. For the latter the order is, value from environment variable |
| * DPKG_ADMINDIR, and then the built-in default ADMINDIR, |
| * |
| * @param dir The new databse directory, or NULL to set to default. |
| * |
| * @return The new database directory. |
| */ |
| const char * |
| dpkg_db_set_dir(const char *dir) |
| { |
| if (dir == NULL) { |
| const char *env; |
| |
| env = getenv("DPKG_ADMINDIR"); |
| if (env) |
| db_dir = env; |
| else |
| db_dir = ADMINDIR; |
| } else { |
| db_dir = dir; |
| } |
| |
| return db_dir; |
| } |
| |
| /** |
| * Get current on-disk database directory. |
| * |
| * @return The current database directory. |
| */ |
| const char * |
| dpkg_db_get_dir(void) |
| { |
| return db_dir; |
| } |
| |
| /** |
| * Get a pathname to the current on-disk database directory. |
| * |
| * This function returns an allocated string, which should be freed with |
| * free(2). |
| * |
| * @param pathpart The pathpart to append to the new pathnme. |
| * |
| * @return The newly allocated pathname. |
| */ |
| char * |
| dpkg_db_get_path(const char *pathpart) |
| { |
| char *pathname; |
| |
| m_asprintf(&pathname, "%s/%s", db_dir, pathpart); |
| |
| return pathname; |
| } |