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/*
* testdb.c : Test a pacman local database for validity
*
* Copyright (c) 2007 by Aaron Griffin <aaronmgriffin@gmail.com>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <dirent.h>
#include <alpm.h>
#include <alpm_list.h>
#define BASENAME "testdb"
alpm_handle_t *handle = NULL;
static void cleanup(int signum) {
if(handle && alpm_release(handle) == -1) {
fprintf(stderr, "error releasing alpm\n");
}
exit(signum);
}
static void output_cb(alpm_loglevel_t level, const char *fmt, va_list args)
{
if(strlen(fmt)) {
switch(level) {
case ALPM_LOG_ERROR: printf("error: "); break;
case ALPM_LOG_WARNING: printf("warning: "); break;
default: return;
}
vprintf(fmt, args);
}
}
static int check_localdb_files(void)
{
struct dirent *ent;
const char *dbpath;
char path[4096];
int ret = 0;
DIR *dir;
dbpath = alpm_option_get_dbpath(handle);
snprintf(path, sizeof(path), "%slocal", dbpath);
if(!(dir = opendir(path))) {
fprintf(stderr, "error : %s : %s\n", path, strerror(errno));
return 1;
}
while((ent = readdir(dir)) != NULL) {
if(strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0
|| ent->d_name[0] == '.') {
continue;
}
/* check for known db files in local database */
snprintf(path, sizeof(path), "%slocal/%s/desc", dbpath, ent->d_name);
if(access(path, F_OK)) {
printf("%s: description file is missing\n", ent->d_name);
ret++;
}
snprintf(path, sizeof(path), "%slocal/%s/files", dbpath, ent->d_name);
if(access(path, F_OK)) {
printf("%s: file list is missing\n", ent->d_name);
ret++;
}
}
if(closedir(dir)) {
fprintf(stderr, "error closing dbpath : %s\n", strerror(errno));
return 1;
}
return ret;
}
static int checkdeps(alpm_list_t *pkglist)
{
alpm_list_t *data, *i;
int ret = 0;
/* check dependencies */
data = alpm_checkdeps(handle, pkglist, NULL, pkglist, 0);
for(i = data; i; i = alpm_list_next(i)) {
alpm_depmissing_t *miss = alpm_list_getdata(i);
char *depstring = alpm_dep_compute_string(miss->depend);
printf("missing dependency for %s : %s\n", miss->target,
depstring);
free(depstring);
ret++;
}
FREELIST(data);
return ret;
}
static int checkconflicts(alpm_list_t *pkglist)
{
alpm_list_t *data, *i;
int ret = 0;
/* check conflicts */
data = alpm_checkconflicts(handle, pkglist);
for(i = data; i; i = i->next) {
alpm_conflict_t *conflict = alpm_list_getdata(i);
printf("%s conflicts with %s\n",
conflict->package1, conflict->package2);
ret++;
}
FREELIST(data);
return ret;
}
static int check_localdb(void) {
int ret = 0;
alpm_db_t *db = NULL;
alpm_list_t *pkglist;
ret = check_localdb_files();
if(ret) {
return ret;
}
db = alpm_option_get_localdb(handle);
pkglist = alpm_db_get_pkgcache(db);
ret += checkdeps(pkglist);
ret += checkconflicts(pkglist);
return ret;
}
static int check_syncdbs(alpm_list_t *dbnames) {
int ret = 0;
alpm_db_t *db = NULL;
alpm_list_t *i, *pkglist, *syncpkglist = NULL;
for(i = dbnames; i; i = alpm_list_next(i)) {
char *dbname = alpm_list_getdata(i);
db = alpm_db_register_sync(handle, dbname, PM_PGP_VERIFY_OPTIONAL);
if(db == NULL) {
fprintf(stderr, "error: could not register sync database (%s)\n",
alpm_strerror(alpm_errno(handle)));
ret = 1;
goto cleanup;
}
pkglist = alpm_db_get_pkgcache(db);
syncpkglist = alpm_list_join(syncpkglist, alpm_list_copy(pkglist));
}
ret += checkdeps(syncpkglist);
cleanup:
alpm_list_free(syncpkglist);
return ret;
}
static void usage(void) {
fprintf(stderr, "usage:\n");
fprintf(stderr,
"\t%s [-b <pacman db>] : check the local database\n", BASENAME);
fprintf(stderr,
"\t%s [-b <pacman db>] core extra ... : check the listed sync databases\n", BASENAME);
exit(1);
}
int main(int argc, char *argv[])
{
int ret = 0;
enum _alpm_errno_t err;
const char *dbpath = DBPATH;
int a = 1;
alpm_list_t *dbnames = NULL;
while(a < argc) {
if(strcmp(argv[a], "-b") == 0) {
if(++a < argc) {
dbpath = argv[a];
} else {
usage();
}
} else if(strcmp(argv[a], "-h") == 0 ||
strcmp(argv[a], "--help") == 0 ) {
usage();
} else {
dbnames = alpm_list_add(dbnames, argv[a]);
}
a++;
}
handle = alpm_initialize(ROOTDIR, dbpath, &err);
if(!handle) {
fprintf(stderr, "cannot initialize alpm: %s\n", alpm_strerror(err));
return EXIT_FAILURE;
}
/* let us get log messages from libalpm */
alpm_option_set_logcb(handle, output_cb);
if(!dbnames) {
ret = check_localdb();
} else {
ret = check_syncdbs(dbnames);
alpm_list_free(dbnames);
}
cleanup(ret);
}
/* vim: set ts=2 sw=2 noet: */
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