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Annotation of embedaddon/php/ext/zip/lib/zip_fdopen.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:   zip_fdopen.c -- open read-only archive from file descriptor
                      3:   Copyright (C) 2009-2010 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(struct zip *)
                     41: zip_fdopen(int fd_orig, int flags, int *zep)
                     42: {
                     43:     int fd;
                     44:     FILE *fp;
                     45: 
                     46:     /* We dup() here to avoid messing with the passed in fd.
                     47:        We could not restore it to the original state in case of error. */
                     48: 
                     49:     if ((fd=dup(fd_orig)) < 0) {
                     50:        *zep = ZIP_ER_OPEN;
                     51:        return NULL;
                     52:     }
                     53: 
                     54:     if ((fp=fdopen(fd, "rb")) == NULL) {
                     55:        close(fd);
                     56:        *zep = ZIP_ER_OPEN;
                     57:        return NULL;
                     58:     }
                     59: 
                     60:     close(fd_orig);
                     61:     return _zip_open(NULL, fp, flags, ZIP_AFL_RDONLY, zep);
                     62: }