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Diffstat (limited to 'lib/dpkg/dbdir.c')
-rw-r--r-- | lib/dpkg/dbdir.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/lib/dpkg/dbdir.c b/lib/dpkg/dbdir.c new file mode 100644 index 0000000..2a0eefa --- /dev/null +++ b/lib/dpkg/dbdir.c @@ -0,0 +1,88 @@ +/* + * 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 <https://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 database 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 pathname. + * + * @return The newly allocated pathname. + */ +char * +dpkg_db_get_path(const char *pathpart) +{ + return str_fmt("%s/%s", db_dir, pathpart); +} |