| /* Copy access control list from one file to another. -*- coding: utf-8 -*- |
| |
| Copyright (C) 2002-2003, 2005-2020 Free Software Foundation, Inc. |
| |
| 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 3 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 <https://www.gnu.org/licenses/>. |
| |
| Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible. */ |
| |
| #include <config.h> |
| |
| #include "acl.h" |
| |
| #include "acl-internal.h" |
| |
| |
| /* Copy access control lists from one file to another. If SOURCE_DESC is |
| a valid file descriptor, use file descriptor operations, else use |
| filename based operations on SRC_NAME. Likewise for DEST_DESC and |
| DST_NAME. |
| If access control lists are not available, fchmod the target file to |
| MODE. Also sets the non-permission bits of the destination file |
| (S_ISUID, S_ISGID, S_ISVTX) to those from MODE if any are set. |
| Return 0 if successful. |
| Return -2 and set errno for an error relating to the source file. |
| Return -1 and set errno for an error relating to the destination file. */ |
| |
| int |
| qcopy_acl (const char *src_name, int source_desc, const char *dst_name, |
| int dest_desc, mode_t mode) |
| { |
| struct permission_context ctx; |
| int ret; |
| |
| ret = get_permissions (src_name, source_desc, mode, &ctx); |
| if (ret != 0) |
| return -2; |
| ret = set_permissions (&ctx, dst_name, dest_desc); |
| free_permission_context (&ctx); |
| return ret; |
| } |