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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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include <dirent.h>
#include <libgen.h>
#include <alpm.h>
#include <alpm_list.h>
int _alpm_str_cmp(const void *s1, const void *s2)
{
return(strcmp(s1, s2));
}
static void diffrqdby(const char *pkgname, alpm_list_t *oldrqdby, alpm_list_t *newrqdby)
{
oldrqdby = alpm_list_msort(oldrqdby, alpm_list_count(oldrqdby), _alpm_str_cmp);
newrqdby = alpm_list_msort(newrqdby, alpm_list_count(newrqdby), _alpm_str_cmp);
alpm_list_t *i = oldrqdby;
alpm_list_t *j = newrqdby;
while(i || j) {
char *s1 = NULL;
char *s2 = NULL;
int n;
if(i && !j) {
n = -1;
} else if(!i && j) {
n = 1;
} else {
s1 = i->data;
s2 = j->data;
n = strcmp(s1, s2);
}
if(n < 0) {
s1 = i->data;
printf("wrong requiredby for %s : %s\n", pkgname, s1);
i = i->next;
} else if (n > 0) {
s2 = j->data;
printf("missing requiredby for %s : %s\n", pkgname, s2);
j = j->next;
} else {
i = i->next;
j = j->next;
}
}
}
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);
printf("\n");
}
}
int db_test(char *dbpath)
{
struct dirent *ent;
char path[PATH_MAX];
struct stat buf;
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, "..")) {
continue;
}
/* check for desc, depends, and files */
snprintf(path, PATH_MAX, "%s/%s/desc", dbpath, ent->d_name);
if(stat(path, &buf)) {
printf("%s: description file is missing\n", ent->d_name);
ret++;
}
snprintf(path, PATH_MAX, "%s/%s/depends", dbpath, ent->d_name);
if(stat(path, &buf)) {
printf("%s: dependency file is missing\n", ent->d_name);
ret++;
}
snprintf(path, PATH_MAX, "%s/%s/files", dbpath, ent->d_name);
if(stat(path, &buf)) {
printf("%s: file list is missing\n", ent->d_name);
ret++;
}
}
return(ret);
}
int main(int argc, char **argv)
{
int retval = 0; /* default = false */
pmdb_t *db = NULL;
char dbpath[PATH_MAX];
alpm_list_t *i;
if(argc != 2) {
fprintf(stderr, "usage: %s <pacman db>\n", basename(argv[0]));
return(1);
}
snprintf(dbpath, PATH_MAX, "%s/local", argv[1]);
retval = db_test(dbpath);
if(retval) {
exit(retval);
}
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(argv[1]);
db = alpm_db_register_local();
if(db == NULL) {
fprintf(stderr, "error: could not register 'local' database (%s)\n",
alpm_strerrorlast());
cleanup(EXIT_FAILURE);
}
/* check dependencies */
alpm_list_t *data;
data = alpm_checkdeps(db, PM_TRANS_TYPE_ADD, alpm_db_getpkgcache(db));
for(i = data; i; i = alpm_list_next(i)) {
pmdepmissing_t *miss = alpm_list_getdata(i);
pmdepend_t *dep = alpm_miss_get_dep(miss);
printf("missing dependency for %s : %s\n", alpm_miss_get_target(miss),
alpm_dep_get_name(dep));
}
/* check requiredby */
for(i = alpm_db_getpkgcache(db); i; i = alpm_list_next(i)) {
pmpkg_t *pkg = alpm_list_getdata(i);
const char *pkgname = alpm_pkg_get_name(pkg);
alpm_list_t *rqdby = alpm_pkg_compute_requiredby(pkg);
diffrqdby(pkgname, alpm_pkg_get_requiredby(pkg), rqdby);
}
cleanup(retval);
}
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