Mercurial > embed
comparison libzip/lib/zip_source_layered.c @ 4:2306f4b04790
libzip: import 1.1.2
author | David Demelier <markand@malikania.fr> |
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date | Wed, 24 Feb 2016 21:19:28 +0100 |
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3:543b0653ea27 | 4:2306f4b04790 |
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1 /* | |
2 zip_source_layered.c -- create layered source | |
3 Copyright (C) 2009-2014 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 #include <stdlib.h> | |
36 | |
37 #include "zipint.h" | |
38 | |
39 | |
40 zip_source_t * | |
41 zip_source_layered(zip_t *za, zip_source_t *src, zip_source_layered_callback cb, void *ud) | |
42 { | |
43 if (za == NULL) | |
44 return NULL; | |
45 | |
46 return zip_source_layered_create(src, cb, ud, &za->error); | |
47 } | |
48 | |
49 | |
50 zip_source_t * | |
51 zip_source_layered_create(zip_source_t *src, zip_source_layered_callback cb, void *ud, zip_error_t *error) | |
52 { | |
53 zip_source_t *zs; | |
54 | |
55 if ((zs=_zip_source_new(error)) == NULL) | |
56 return NULL; | |
57 | |
58 zip_source_keep(src); | |
59 zs->src = src; | |
60 zs->cb.l = cb; | |
61 zs->ud = ud; | |
62 | |
63 zs->supports = cb(src, ud, NULL, 0, ZIP_SOURCE_SUPPORTS); | |
64 if (zs->supports < 0) { | |
65 zs->supports = ZIP_SOURCE_SUPPORTS_READABLE; | |
66 } | |
67 | |
68 return zs; | |
69 } |