62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*
|
||
zip_source_zip.c -- create data source from zip file
|
||
Copyright (C) 1999-2009 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 <stdlib.h>
|
||
#include <string.h>
|
||
|
||
#include "zipint.h"
|
||
|
||
|
||
|
||
ZIP_EXTERN struct zip_source *
|
||
zip_source_zip(struct zip *za, struct zip *srcza, zip_uint64_t srcidx,
|
||
zip_flags_t flags, zip_uint64_t start, zip_int64_t len)
|
||
{
|
||
if (len < -1) {
|
||
_zip_error_set(&za->error, ZIP_ER_INVAL, 0);
|
||
return NULL;
|
||
}
|
||
|
||
if (len == -1)
|
||
len = 0;
|
||
|
||
if (start == 0 && len == 0)
|
||
flags |= ZIP_FL_COMPRESSED;
|
||
else
|
||
flags &= ~ZIP_FL_COMPRESSED;
|
||
|
||
return _zip_source_zip_new(za, srcza, srcidx, flags, start, (zip_uint64_t)len, NULL);
|
||
}
|