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zip_entry_new.c
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00001 /*
00002   zip_entry_new.c -- create and init struct zip_entry
00003   Copyright (C) 1999-2007 Dieter Baron and Thomas Klausner
00004 
00005   This file is part of libzip, a library to manipulate ZIP archives.
00006   The authors can be contacted at <libzip@nih.at>
00007 
00008   Redistribution and use in source and binary forms, with or without
00009   modification, are permitted provided that the following conditions
00010   are met:
00011   1. Redistributions of source code must retain the above copyright
00012      notice, this list of conditions and the following disclaimer.
00013   2. Redistributions in binary form must reproduce the above copyright
00014      notice, this list of conditions and the following disclaimer in
00015      the documentation and/or other materials provided with the
00016      distribution.
00017   3. The names of the authors may not be used to endorse or promote
00018      products derived from this software without specific prior
00019      written permission.
00020  
00021   THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
00022   OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00023   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00024   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
00025   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00026   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
00027   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00028   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
00029   IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
00030   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
00031   IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00032 */
00033 
00034 
00035 
00036 #include <stdlib.h>
00037 
00038 #include "zipint.h"
00039 
00040 
00041 
00042 struct zip_entry *
00043 _zip_entry_new(struct zip *za)
00044 {
00045     struct zip_entry *ze;
00046     if (!za) {
00047        ze = (struct zip_entry *)malloc(sizeof(struct zip_entry));
00048        if (!ze) {
00049            _zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
00050            return NULL;
00051        }
00052     }
00053     else {
00054        if (za->nentry >= za->nentry_alloc-1) {
00055            za->nentry_alloc += 16;
00056            za->entry = (struct zip_entry *)realloc(za->entry,
00057                                               sizeof(struct zip_entry)
00058                                               * za->nentry_alloc);
00059            if (!za->entry) {
00060               _zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
00061               return NULL;
00062            }
00063        }
00064        ze = za->entry+za->nentry;
00065     }
00066 
00067     ze->state = ZIP_ST_UNCHANGED;
00068 
00069     ze->ch_filename = NULL;
00070     ze->ch_comment = NULL;
00071     ze->ch_comment_len = -1;
00072     ze->source = NULL;
00073 
00074     if (za)
00075        za->nentry++;
00076 
00077     return ze;
00078 }