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/*
* Copyright (c) 2011-2012 Baptiste Daroussin <bapt@FreeBSD.org>
* Copyright (c) 2011-2012 Julien Laffaye <jlaffaye@FreeBSD.org>
* Copyright (c) 2011 Will Andrews <will@FreeBSD.org>
* Copyright (c) 2011 Philippe Pepiot <phil@philpep.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include "pkg.h"
#include "private/event.h"
#include "private/pkg.h"
#include "private/utils.h"
int
pkg_delete(struct pkg *pkg, struct pkgdb *db, unsigned flags)
{
struct pkg_dep *rdep = NULL;
int ret;
bool handle_rc = false;
const char *origin;
assert(pkg != NULL);
assert(db != NULL);
/*
* Do not trust the existing entries as it may have changed if we
* delete packages in batch.
*/
pkg_list_free(pkg, PKG_RDEPS);
/*
* Ensure that we have all the informations we need
*/
if ((ret = pkgdb_load_rdeps(db, pkg)) != EPKG_OK)
return (ret);
if ((ret = pkgdb_load_files(db, pkg)) != EPKG_OK)
return (ret);
if ((ret = pkgdb_load_dirs(db, pkg)) != EPKG_OK)
return (ret);
if ((ret = pkgdb_load_scripts(db, pkg)) != EPKG_OK)
return (ret);
if ((ret = pkgdb_load_mtree(db, pkg)) != EPKG_OK)
return (ret);
if (flags & PKG_DELETE_UPGRADE)
pkg_emit_upgrade_begin(pkg);
else
pkg_emit_deinstall_begin(pkg);
/* If there are dependencies */
if (pkg_rdeps(pkg, &rdep) == EPKG_OK) {
pkg_emit_required(pkg, flags & PKG_DELETE_FORCE);
if ((flags & PKG_DELETE_FORCE) == 0)
return (EPKG_REQUIRED);
}
/*
* stop the different related services if the users do want that
* and that the service is running
*/
pkg_config_bool(PKG_CONFIG_HANDLE_RC_SCRIPTS, &handle_rc);
if (handle_rc)
pkg_start_stop_rc_scripts(pkg, PKG_RC_STOP);
if (flags & PKG_DELETE_UPGRADE) {
ret = pkg_script_run(pkg, PKG_SCRIPT_PRE_UPGRADE);
if (ret != EPKG_OK)
return (ret);
} else {
ret = pkg_script_run(pkg, PKG_SCRIPT_PRE_DEINSTALL);
if (ret != EPKG_OK)
return (ret);
}
if ((ret = pkg_delete_files(pkg, flags & PKG_DELETE_FORCE)) != EPKG_OK)
return (ret);
if ((flags & PKG_DELETE_UPGRADE) == 0) {
ret = pkg_script_run(pkg, PKG_SCRIPT_POST_DEINSTALL);
if (ret != EPKG_OK)
return (ret);
}
ret = pkg_delete_dirs(db, pkg, flags & PKG_DELETE_FORCE);
if (ret != EPKG_OK)
return (ret);
if ((flags & PKG_DELETE_UPGRADE) == 0)
pkg_emit_deinstall_finished(pkg);
pkg_get(pkg, PKG_ORIGIN, &origin);
return (pkgdb_unregister_pkg(db, origin));
}
int
pkg_delete_files(struct pkg *pkg, bool force)
{
struct pkg_file *file = NULL;
char sha256[SHA256_DIGEST_LENGTH * 2 + 1];
const char *path;
while (pkg_files(pkg, &file) == EPKG_OK) {
const char *sum = pkg_file_cksum(file);
if (file->keep == 1)
continue;
path = pkg_file_path(file);
/* Regular files and links */
/* check sha256 */
if (!force && sum[0] != '\0') {
if (sha256_file(path, sha256) != EPKG_OK)
continue;
if (strcmp(sha256, sum)) {
pkg_emit_error("%s fails original SHA256 "
"checksum, not removing", path);
continue;
}
}
if (unlink(path) == -1) {
pkg_emit_errno("unlink", path);
continue;
}
}
return (EPKG_OK);
}
int
pkg_delete_dirs(__unused struct pkgdb *db, struct pkg *pkg, bool force)
{
struct pkg_dir *dir = NULL;
while (pkg_dirs(pkg, &dir) == EPKG_OK) {
if (dir->keep == 1)
continue;
if (pkg_dir_try(dir)) {
if (rmdir(pkg_dir_path(dir)) == -1 &&
errno != ENOTEMPTY && !force)
pkg_emit_errno("rmdir", pkg_dir_path(dir));
} else {
if (rmdir(pkg_dir_path(dir)) == -1 && !force)
pkg_emit_errno("rmdir", pkg_dir_path(dir));
}
}
return (EPKG_OK);
}
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