| /* |
| zip_get_archive_flag.c -- set archive global flag |
| Copyright (C) 2008-2021 Dieter Baron and Thomas Klausner |
| |
| This file is part of libzip, a library to manipulate ZIP archives. |
| The authors can be contacted at <libzip@nih.at> |
| |
| 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. |
| 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. |
| 3. The names of the authors may not be used to endorse or promote |
| products derived from this software without specific prior |
| written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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 "zipint.h" |
| |
| |
| ZIP_EXTERN int |
| zip_set_archive_flag(zip_t *za, zip_flags_t flag, int value) { |
| unsigned int new_flags; |
| |
| if (value) |
| new_flags = za->ch_flags | flag; |
| else |
| new_flags = za->ch_flags & ~flag; |
| |
| if (new_flags == za->ch_flags) |
| return 0; |
| |
| if (ZIP_IS_RDONLY(za)) { |
| zip_error_set(&za->error, ZIP_ER_RDONLY, 0); |
| return -1; |
| } |
| |
| if ((flag & ZIP_AFL_RDONLY) && value && (za->ch_flags & ZIP_AFL_RDONLY) == 0) { |
| if (_zip_changed(za, NULL)) { |
| zip_error_set(&za->error, ZIP_ER_CHANGED, 0); |
| return -1; |
| } |
| } |
| |
| za->ch_flags = new_flags; |
| |
| return 0; |
| } |