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pacman/lib/libalpm/deps.h
Dan McGee 6d544984f2 Be more robust when copying package data
This changes the signature of _alpm_pkg_dup() to return an integer error
code and provide the new package in a passed pointer argument. All
callers are now more robust with checking the return value of this
function to ensure a fatal error did not occur.

We allow load failures to proceed as otherwise we have a chicken and egg
problem- if a 'desc' local database entry is missing, the best way of
restoring said file is `pacman -Sf --dbonly packagename`. This patch
fixes a segfault that was occurring in this case.

Fixes the segfault reported in FS#25667.

Signed-off-by: Dan McGee <dan@archlinux.org>
2011-08-19 11:09:57 -05:00

45 lines
1.7 KiB
C

/*
* deps.h
*
* Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* 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/>.
*/
#ifndef _ALPM_DEPS_H
#define _ALPM_DEPS_H
#include "db.h"
#include "sync.h"
#include "package.h"
#include "alpm.h"
void _alpm_dep_free(alpm_depend_t *dep);
alpm_depend_t *_alpm_dep_dup(const alpm_depend_t *dep);
void _alpm_depmiss_free(alpm_depmissing_t *miss);
alpm_list_t *_alpm_sortbydeps(alpm_handle_t *handle, alpm_list_t *targets, int reverse);
int _alpm_recursedeps(alpm_db_t *db, alpm_list_t *targs, int include_explicit);
int _alpm_resolvedeps(alpm_handle_t *handle, alpm_list_t *localpkgs, alpm_pkg_t *pkg,
alpm_list_t *preferred, alpm_list_t **packages, alpm_list_t *remove,
alpm_list_t **data);
alpm_depend_t *_alpm_splitdep(const char *depstring);
int _alpm_depcmp_literal(alpm_pkg_t *pkg, alpm_depend_t *dep);
int _alpm_depcmp(alpm_pkg_t *pkg, alpm_depend_t *dep);
#endif /* _ALPM_DEPS_H */
/* vim: set ts=2 sw=2 noet: */