/src/libzip/lib/zip_source_call.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | zip_source_call.c -- invoke callback command on zip_source |
3 | | Copyright (C) 2009-2022 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 <info@libzip.org> |
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 "zipint.h" |
36 | | |
37 | | |
38 | | zip_int64_t |
39 | 69 | _zip_source_call(zip_source_t *src, void *data, zip_uint64_t length, zip_source_cmd_t command) { |
40 | 69 | zip_int64_t ret; |
41 | | |
42 | 69 | if ((src->supports & ZIP_SOURCE_MAKE_COMMAND_BITMASK(command)) == 0) { |
43 | 0 | zip_error_set(&src->error, ZIP_ER_OPNOTSUPP, 0); |
44 | 0 | return -1; |
45 | 0 | } |
46 | | |
47 | 69 | if (src->src == NULL) { |
48 | 69 | ret = src->cb.f(src->ud, data, length, command); |
49 | 69 | } |
50 | 0 | else { |
51 | 0 | ret = src->cb.l(src->src, src->ud, data, length, command); |
52 | 0 | } |
53 | | |
54 | 69 | if (ret < 0) { |
55 | 23 | if (command != ZIP_SOURCE_ERROR && command != ZIP_SOURCE_SUPPORTS) { |
56 | 23 | int e[2]; |
57 | | |
58 | 23 | if (_zip_source_call(src, e, sizeof(e), ZIP_SOURCE_ERROR) < 0) { |
59 | 0 | zip_error_set(&src->error, ZIP_ER_INTERNAL, 0); |
60 | 0 | } |
61 | 23 | else { |
62 | 23 | zip_error_set(&src->error, e[0], e[1]); |
63 | 23 | } |
64 | 23 | } |
65 | 23 | } |
66 | | |
67 | 69 | return ret; |
68 | 69 | } |