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Annotation of embedaddon/php/ext/zip/lib/zip_set_archive_flag.c, revision 1.1.1.2

1.1       misho       1: /*
                      2:   zip_get_archive_flag.c -- set archive global flag
                      3:   Copyright (C) 2008-2009 Dieter Baron and Thomas Klausner
                      4: 
                      5:   This file is part of libzip, a library to manipulate ZIP archives.
                      6:   The authors can be contacted at <libzip@nih.at>
                      7: 
                      8:   Redistribution and use in source and binary forms, with or without
                      9:   modification, are permitted provided that the following conditions
                     10:   are met:
                     11:   1. Redistributions of source code must retain the above copyright
                     12:      notice, this list of conditions and the following disclaimer.
                     13:   2. Redistributions in binary form must reproduce the above copyright
                     14:      notice, this list of conditions and the following disclaimer in
                     15:      the documentation and/or other materials provided with the
                     16:      distribution.
                     17:   3. The names of the authors may not be used to endorse or promote
                     18:      products derived from this software without specific prior
                     19:      written permission.
                     20:  
                     21:   THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
                     22:   OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
                     23:   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
                     25:   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
                     27:   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     28:   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
                     29:   IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
                     30:   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
                     31:   IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     32: */
                     33: 
                     34: 
                     35: 
                     36: #include "zipint.h"
                     37: 
                     38: 
                     39: 
                     40: ZIP_EXTERN(int)
                     41: zip_set_archive_flag(struct zip *za, int flag, int value)
                     42: {
1.1.1.2 ! misho      43:     unsigned int new_flags;
        !            44:     
1.1       misho      45:     if (value)
1.1.1.2 ! misho      46:        new_flags = za->ch_flags | flag;
1.1       misho      47:     else
1.1.1.2 ! misho      48:        new_flags = za->ch_flags & ~flag;
        !            49: 
        !            50:     if (new_flags == za->ch_flags)
        !            51:        return 0;
        !            52: 
        !            53:     if (ZIP_IS_RDONLY(za)) {
        !            54:        _zip_error_set(&za->error, ZIP_ER_RDONLY, 0);
        !            55:        return -1;
        !            56:     }
        !            57: 
        !            58:     if ((flag & ZIP_AFL_RDONLY) && value
        !            59:        && (za->ch_flags & ZIP_AFL_RDONLY) == 0) {
        !            60:        if (_zip_changed(za, NULL)) {
        !            61:            _zip_error_set(&za->error, ZIP_ER_CHANGED, 0);
        !            62:            return -1;
        !            63:        }
        !            64:     }
        !            65: 
        !            66:     za->ch_flags = new_flags;
1.1       misho      67: 
                     68:     return 0;
                     69: }