| /* |
| * dpkg - main program for package management |
| * infodb.c - package control information database |
| * |
| * Copyright © 1995 Ian Jackson <ian@chiark.greenend.org.uk> |
| * 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 <sys/stat.h> |
| |
| #include <errno.h> |
| #include <dirent.h> |
| #include <unistd.h> |
| |
| #include <dpkg/i18n.h> |
| #include <dpkg/dpkg.h> |
| #include <dpkg/dpkg-db.h> |
| #include <dpkg/debug.h> |
| |
| #include "filesdb.h" |
| #include "infodb.h" |
| |
| bool |
| pkg_infodb_has_file(struct pkginfo *pkg, const char *name) |
| { |
| const char *filename; |
| struct stat stab; |
| |
| filename = pkgadminfile(pkg, name); |
| if (lstat(filename, &stab) == 0) |
| return true; |
| else if (errno == ENOENT) |
| return false; |
| else |
| ohshite(_("unable to check existence of `%.250s'"), filename); |
| } |
| |
| void |
| pkg_infodb_foreach(struct pkginfo *pkg, pkg_infodb_file_func *func) |
| { |
| DIR *db_dir; |
| struct dirent *db_de; |
| struct varbuf db_path = VARBUF_INIT; |
| size_t db_path_len; |
| |
| varbuf_add_str(&db_path, pkgadmindir()); |
| varbuf_add_char(&db_path, '/'); |
| db_path_len = db_path.used; |
| varbuf_add_char(&db_path, '\0'); |
| |
| db_dir = opendir(db_path.buf); |
| if (!db_dir) |
| ohshite(_("cannot read info directory")); |
| |
| push_cleanup(cu_closedir, ~0, NULL, 0, 1, (void *)db_dir); |
| while ((db_de = readdir(db_dir)) != NULL) { |
| const char *filename, *filetype, *dot; |
| |
| debug(dbg_veryverbose, "infodb foreach info file '%s'", |
| db_de->d_name); |
| |
| /* Ignore dotfiles, including ‘.’ and ‘..’. */ |
| if (db_de->d_name[0] == '.') |
| continue; |
| |
| /* Ignore anything odd. */ |
| dot = strrchr(db_de->d_name, '.'); |
| if (dot == NULL) |
| continue; |
| |
| /* Ignore files from other packages. */ |
| if (strlen(pkg->name) != (size_t)(dot - db_de->d_name) || |
| strncmp(db_de->d_name, pkg->name, dot - db_de->d_name)) |
| continue; |
| |
| debug(dbg_stupidlyverbose, "infodb foreach file this pkg"); |
| |
| /* Skip past the full stop. */ |
| filetype = dot + 1; |
| |
| varbuf_trunc(&db_path, db_path_len); |
| varbuf_add_str(&db_path, db_de->d_name); |
| varbuf_end_str(&db_path); |
| filename = db_path.buf; |
| |
| func(filename, filetype); |
| } |
| pop_cleanup(ehflag_normaltidy); /* closedir */ |
| |
| varbuf_destroy(&db_path); |
| } |