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/*
* backup.c
*
* Copyright (c) 2006-2020 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2005 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
* Copyright (c) 2006 by Miklos Vajna <vmiklos@frugalware.org>
*
* 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 <stdlib.h>
#include <string.h>
/* libalpm */
#include "backup.h"
#include "alpm_list.h"
#include "log.h"
#include "util.h"
/* split a backup string "file\thash" into the relevant components */
int _alpm_split_backup(const char *string, alpm_backup_t **backup)
{
char *str, *ptr;
STRDUP(str, string, return -1);
/* tab delimiter */
ptr = str ? strchr(str, '\t') : NULL;
if(ptr == NULL) {
(*backup)->name = str;
(*backup)->hash = NULL;
return 0;
}
*ptr = '\0';
ptr++;
/* now str points to the filename and ptr points to the hash */
STRDUP((*backup)->name, str, FREE(str); return -1);
STRDUP((*backup)->hash, ptr, FREE((*backup)->name); FREE(str); return -1);
FREE(str);
return 0;
}
/* Look for a filename in a alpm_pkg_t.backup list. If we find it,
* then we return the full backup entry.
*/
alpm_backup_t *_alpm_needbackup(const char *file, alpm_pkg_t *pkg)
{
const alpm_list_t *lp;
if(file == NULL || pkg == NULL) {
return NULL;
}
for(lp = alpm_pkg_get_backup(pkg); lp; lp = lp->next) {
alpm_backup_t *backup = lp->data;
if(strcmp(file, backup->name) == 0) {
return backup;
}
}
return NULL;
}
void _alpm_backup_free(alpm_backup_t *backup)
{
ASSERT(backup != NULL, return);
FREE(backup->name);
FREE(backup->hash);
FREE(backup);
}
alpm_backup_t *_alpm_backup_dup(const alpm_backup_t *backup)
{
alpm_backup_t *newbackup;
CALLOC(newbackup, 1, sizeof(alpm_backup_t), return NULL);
STRDUP(newbackup->name, backup->name, goto error);
STRDUP(newbackup->hash, backup->hash, goto error);
return newbackup;
error:
free(newbackup->name);
free(newbackup);
return NULL;
}
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