Return to zip_unchange.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / ext / zip / lib

Annotation of embedaddon/php/ext/zip/lib/zip_unchange.c, revision 1.1

1.1     ! misho       1: /*
        !             2:   zip_unchange.c -- undo changes to file in zip archive
        !             3:   Copyright (C) 1999-2007 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 <stdlib.h>
        !            37: 
        !            38: #include "zipint.h"
        !            39: 
        !            40: 
        !            41: 
        !            42: ZIP_EXTERN(int)
        !            43: zip_unchange(struct zip *za, int idx)
        !            44: {
        !            45:     return _zip_unchange(za, idx, 0);
        !            46: }
        !            47: 
        !            48: 
        !            49: 
        !            50: int
        !            51: _zip_unchange(struct zip *za, int idx, int allow_duplicates)
        !            52: {
        !            53:     int i;
        !            54:     
        !            55:     if (idx < 0 || idx >= za->nentry) {
        !            56:        _zip_error_set(&za->error, ZIP_ER_INVAL, 0);
        !            57:        return -1;
        !            58:     }
        !            59: 
        !            60:     if (za->entry[idx].ch_filename) {
        !            61:        if (!allow_duplicates) {
        !            62:            i = _zip_name_locate(za,
        !            63:                         _zip_get_name(za, idx, ZIP_FL_UNCHANGED, NULL),
        !            64:                                 0, NULL);
        !            65:            if (i != -1 && i != idx) {
        !            66:                _zip_error_set(&za->error, ZIP_ER_EXISTS, 0);
        !            67:                return -1;
        !            68:            }
        !            69:        }
        !            70: 
        !            71:        free(za->entry[idx].ch_filename);
        !            72:        za->entry[idx].ch_filename = NULL;
        !            73:     }
        !            74: 
        !            75:     free(za->entry[idx].ch_comment);
        !            76:     za->entry[idx].ch_comment = NULL;
        !            77:     za->entry[idx].ch_comment_len = -1;
        !            78: 
        !            79:     _zip_unchange_data(za->entry+idx);
        !            80: 
        !            81:     return 0;
        !            82: }