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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 <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <limits.h>
#include <string.h>
#include <dirent.h>
#include <libgen.h>
#include <alpm.h>
#include <alpm_list.h>
#define BASENAME "testdb"
int str_cmp(const void *s1, const void *s2)
{
return(strcmp(s1, s2));
}
static void cleanup(int signum) {
if(alpm_release() == -1) {
fprintf(stderr, "error releasing alpm: %s\n", alpm_strerrorlast());
}
exit(signum);
}
void output_cb(pmloglevel_t level, char *fmt, va_list args)
{
if(strlen(fmt)) {
switch(level) {
case PM_LOG_ERROR: printf("error: "); break;
case PM_LOG_WARNING: printf("warning: "); break;
default: return;
}
vprintf(fmt, args);
}
}
static int db_test(char *dbpath, int local)
{
struct dirent *ent;
char path[PATH_MAX];
int ret = 0;
DIR *dir;
if(!(dir = opendir(dbpath))) {
fprintf(stderr, "error : %s : %s\n", dbpath, strerror(errno));
return(1);
}
while ((ent = readdir(dir)) != NULL) {
if(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..")
|| ent->d_name[0] == '.') {
continue;
}
/* check for desc, depends, and files */
snprintf(path, PATH_MAX, "%s/%s/desc", dbpath, ent->d_name);
if(access(path, F_OK)) {
printf("%s: description file is missing\n", ent->d_name);
ret++;
}
snprintf(path, PATH_MAX, "%s/%s/depends", dbpath, ent->d_name);
if(access(path, F_OK)) {
printf("%s: dependency file is missing\n", ent->d_name);
ret++;
}
if(local) {
snprintf(path, PATH_MAX, "%s/%s/files", dbpath, ent->d_name);
if(access(path, F_OK)) {
printf("%s: file list is missing\n", ent->d_name);
ret++;
}
}
}
return(ret);
}
int checkdeps(alpm_list_t *pkglist)
{
alpm_list_t *data, *i;
int ret = 0;
/* check dependencies */
data = alpm_checkdeps(pkglist, 0, NULL, pkglist);
for(i = data; i; i = alpm_list_next(i)) {
pmdepmissing_t *miss = alpm_list_getdata(i);
pmdepend_t *dep = alpm_miss_get_dep(miss);
char *depstring = alpm_dep_compute_string(dep);
printf("missing dependency for %s : %s\n", alpm_miss_get_target(miss),
depstring);
free(depstring);
ret++;
}
return(ret);
}
int checkconflicts(alpm_list_t *pkglist)
{
alpm_list_t *data, *i;
int ret = 0;
/* check conflicts */
data = alpm_checkconflicts(pkglist);
for(i = data; i; i = i->next) {
pmconflict_t *conflict = alpm_list_getdata(i);
printf("%s conflicts with %s\n", alpm_conflict_get_package1(conflict),
alpm_conflict_get_package2(conflict));
ret++;
}
return(ret);
}
int check_localdb(char *dbpath) {
char localdbpath[PATH_MAX];
int ret = 0;
pmdb_t *db = NULL;
alpm_list_t *pkglist;
snprintf(localdbpath, PATH_MAX, "%s/local", dbpath);
ret = db_test(localdbpath, 1);
if(ret) {
return(ret);
}
db = alpm_db_register_local();
if(db == NULL) {
fprintf(stderr, "error: could not register 'local' database (%s)\n",
alpm_strerrorlast());
cleanup(EXIT_FAILURE);
}
pkglist = alpm_db_get_pkgcache(db);
ret += checkdeps(pkglist);
ret += checkconflicts(pkglist);
return(ret);
}
int check_syncdbs(char *dbpath, alpm_list_t *dbnames) {
char syncdbpath[PATH_MAX];
int ret = 0;
pmdb_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);
snprintf(syncdbpath, PATH_MAX, "%s/sync/%s", dbpath, dbname);
ret = db_test(syncdbpath, 0);
if(ret) {
return(ret);
}
db = alpm_db_register_sync(dbname);
if(db == NULL) {
fprintf(stderr, "error: could not register sync database (%s)\n",
alpm_strerrorlast());
cleanup(EXIT_FAILURE);
}
pkglist = alpm_db_get_pkgcache(db);
syncpkglist = alpm_list_join(syncpkglist, alpm_list_copy(pkglist));
}
ret += checkdeps(syncpkglist);
alpm_list_free(syncpkglist);
alpm_db_unregister_all();
return(ret);
}
void usage() {
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;
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++;
}
if(alpm_initialize() == -1) {
fprintf(stderr, "cannot initialize alpm: %s\n", alpm_strerrorlast());
return(1);
}
/* let us get log messages from libalpm */
alpm_option_set_logcb(output_cb);
alpm_option_set_dbpath(dbpath);
if(!dbnames) {
printf("Checking the integrity of the local database in %s\n",dbpath);
ret = check_localdb(dbpath);
} else {
printf("Checking the integrity of the sync databases in %s\n",dbpath);
ret = check_syncdbs(dbpath,dbnames);
}
cleanup(ret);
}
/* vim: set ts=2 sw=2 noet: */
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