mirror of
https://github.com/moparisthebest/pacman
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20ff0cd40f
With some contrived examples, you could easily make testdb return a very high error count, which could easily overflow the 8-bit unsigned integer limit. Instead, simply return 1 or 0 based on whether errors were found. Signed-off-by: Dan McGee <dan@archlinux.org>
298 lines
7.0 KiB
C
298 lines
7.0 KiB
C
/*
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* testdb.c : Test a pacman local database for validity
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*
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* Copyright (c) 2007 by Aaron Griffin <aaronmgriffin@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <dirent.h>
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#include <alpm.h>
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#include <alpm_list.h>
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#define BASENAME "testdb"
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alpm_handle_t *handle = NULL;
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static void cleanup(int signum)
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{
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if(handle && alpm_release(handle) == -1) {
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fprintf(stderr, "error releasing alpm\n");
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}
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exit(signum);
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}
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static void output_cb(alpm_loglevel_t level, const char *fmt, va_list args)
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{
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if(strlen(fmt)) {
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switch(level) {
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case ALPM_LOG_ERROR: printf("error: "); break;
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case ALPM_LOG_WARNING: printf("warning: "); break;
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default: return;
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}
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vprintf(fmt, args);
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}
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}
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static int check_localdb_files(void)
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{
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struct dirent *ent;
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const char *dbpath;
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char path[4096];
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int ret = 0;
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DIR *dir;
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dbpath = alpm_option_get_dbpath(handle);
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snprintf(path, sizeof(path), "%slocal", dbpath);
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if(!(dir = opendir(path))) {
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fprintf(stderr, "error : %s : %s\n", path, strerror(errno));
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return 1;
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}
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while((ent = readdir(dir)) != NULL) {
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if(strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0
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|| ent->d_name[0] == '.') {
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continue;
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}
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/* check for known db files in local database */
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snprintf(path, sizeof(path), "%slocal/%s/desc", dbpath, ent->d_name);
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if(access(path, F_OK)) {
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printf("%s: description file is missing\n", ent->d_name);
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ret++;
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}
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snprintf(path, sizeof(path), "%slocal/%s/files", dbpath, ent->d_name);
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if(access(path, F_OK)) {
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printf("%s: file list is missing\n", ent->d_name);
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ret++;
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}
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}
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if(closedir(dir)) {
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fprintf(stderr, "error closing dbpath : %s\n", strerror(errno));
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return 1;
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}
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return ret;
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}
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static int check_deps(alpm_list_t *pkglist)
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{
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alpm_list_t *data, *i;
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int ret = 0;
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/* check dependencies */
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data = alpm_checkdeps(handle, pkglist, NULL, pkglist, 0);
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for(i = data; i; i = alpm_list_next(i)) {
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alpm_depmissing_t *miss = i->data;
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char *depstring = alpm_dep_compute_string(miss->depend);
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printf("missing %s dependency for %s\n", depstring, miss->target);
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free(depstring);
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ret++;
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}
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FREELIST(data);
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return ret;
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}
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static int check_conflicts(alpm_list_t *pkglist)
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{
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alpm_list_t *data, *i;
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int ret = 0;
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/* check conflicts */
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data = alpm_checkconflicts(handle, pkglist);
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for(i = data; i; i = i->next) {
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alpm_conflict_t *conflict = i->data;
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printf("%s conflicts with %s\n",
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conflict->package1, conflict->package2);
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ret++;
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}
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FREELIST(data);
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return ret;
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}
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struct fileitem {
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alpm_file_t *file;
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alpm_pkg_t *pkg;
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};
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static int fileitem_cmp(const void *p1, const void *p2)
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{
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const struct fileitem * fi1 = p1;
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const struct fileitem * fi2 = p2;
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return strcmp(fi1->file->name, fi2->file->name);
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}
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static int check_filelists(alpm_list_t *pkglist)
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{
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alpm_list_t *i;
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int ret = 0;
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size_t list_size = 4096;
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size_t offset = 0, j;
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struct fileitem *all_files;
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struct fileitem *prev_fileitem = NULL;
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all_files = malloc(list_size * sizeof(struct fileitem));
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for(i = pkglist; i; i = i->next) {
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alpm_pkg_t *pkg = i->data;
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alpm_filelist_t *filelist = alpm_pkg_get_files(pkg);
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for(j = 0; j < filelist->count; j++) {
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alpm_file_t *file = filelist->files + j;
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/* only add files, not directories, to our big list */
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if(file->name[strlen(file->name) - 1] == '/') {
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continue;
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}
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/* do we need to reallocate and grow our array? */
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if(offset >= list_size) {
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struct fileitem *new_files;
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new_files = realloc(all_files, list_size * 2 * sizeof(struct fileitem));
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if(!new_files) {
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free(all_files);
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return 1;
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}
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all_files = new_files;
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list_size *= 2;
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}
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/* we can finally add it to the list */
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all_files[offset].file = file;
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all_files[offset].pkg = pkg;
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offset++;
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}
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}
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/* now sort the list so we can find duplicates */
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qsort(all_files, offset, sizeof(struct fileitem), fileitem_cmp);
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/* do a 'uniq' style check on the list */
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for(j = 0; j < offset; j++) {
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struct fileitem *fileitem = all_files + j;
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if(prev_fileitem && fileitem_cmp(prev_fileitem, fileitem) == 0) {
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printf("file owned by %s and %s: %s\n",
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alpm_pkg_get_name(prev_fileitem->pkg),
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alpm_pkg_get_name(fileitem->pkg),
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fileitem->file->name);
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}
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prev_fileitem = fileitem;
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}
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free(all_files);
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return ret;
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}
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static int check_localdb(void)
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{
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int ret = 0;
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alpm_db_t *db = NULL;
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alpm_list_t *pkglist;
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ret = check_localdb_files();
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if(ret) {
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return ret;
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}
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db = alpm_get_localdb(handle);
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pkglist = alpm_db_get_pkgcache(db);
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ret += check_deps(pkglist);
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ret += check_conflicts(pkglist);
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ret += check_filelists(pkglist);
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return ret;
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}
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static int check_syncdbs(alpm_list_t *dbnames)
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{
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int ret = 0;
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alpm_db_t *db = NULL;
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alpm_list_t *i, *pkglist, *syncpkglist = NULL;
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const alpm_siglevel_t level = ALPM_SIG_DATABASE | ALPM_SIG_DATABASE_OPTIONAL;
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for(i = dbnames; i; i = alpm_list_next(i)) {
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const char *dbname = i->data;
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db = alpm_register_syncdb(handle, dbname, level);
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if(db == NULL) {
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fprintf(stderr, "error: could not register sync database (%s)\n",
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alpm_strerror(alpm_errno(handle)));
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ret = 1;
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goto cleanup;
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}
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pkglist = alpm_db_get_pkgcache(db);
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syncpkglist = alpm_list_join(syncpkglist, alpm_list_copy(pkglist));
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}
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ret += check_deps(syncpkglist);
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cleanup:
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alpm_list_free(syncpkglist);
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return ret;
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}
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static void usage(void)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr,
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"\t%s [-b <pacman db>] : check the local database\n", BASENAME);
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fprintf(stderr,
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"\t%s [-b <pacman db>] core extra ... : check the listed sync databases\n", BASENAME);
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exit(1);
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}
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int main(int argc, char *argv[])
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{
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int errors = 0;
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alpm_errno_t err;
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const char *dbpath = DBPATH;
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int a = 1;
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alpm_list_t *dbnames = NULL;
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while(a < argc) {
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if(strcmp(argv[a], "-b") == 0) {
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if(++a < argc) {
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dbpath = argv[a];
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} else {
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usage();
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}
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} else if(strcmp(argv[a], "-h") == 0 ||
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strcmp(argv[a], "--help") == 0 ) {
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usage();
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} else {
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dbnames = alpm_list_add(dbnames, argv[a]);
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}
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a++;
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}
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handle = alpm_initialize(ROOTDIR, dbpath, &err);
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if(!handle) {
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fprintf(stderr, "cannot initialize alpm: %s\n", alpm_strerror(err));
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return EXIT_FAILURE;
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}
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/* let us get log messages from libalpm */
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alpm_option_set_logcb(handle, output_cb);
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if(!dbnames) {
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errors = check_localdb();
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} else {
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errors = check_syncdbs(dbnames);
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alpm_list_free(dbnames);
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}
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cleanup(errors > 0);
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}
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/* vim: set ts=2 sw=2 noet: */
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