/src/libzip/lib/zip_source_supports.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | zip_source_supports.c -- check for supported functions |
3 | | Copyright (C) 2014-2023 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 <stdarg.h> |
36 | | |
37 | | #include "zipint.h" |
38 | | |
39 | | |
40 | | zip_int64_t |
41 | 23 | zip_source_supports(zip_source_t *src) { |
42 | 23 | return src->supports; |
43 | 23 | } |
44 | | |
45 | | bool |
46 | 0 | zip_source_supports_reopen(zip_source_t *src) { |
47 | 0 | return (zip_source_supports(src) & ZIP_SOURCE_MAKE_COMMAND_BITMASK(ZIP_SOURCE_SUPPORTS_REOPEN)) != 0; |
48 | 0 | } |
49 | | |
50 | | ZIP_EXTERN zip_int64_t |
51 | 46 | zip_source_make_command_bitmap(zip_source_cmd_t cmd0, ...) { |
52 | 46 | zip_int64_t bitmap; |
53 | 46 | va_list ap; |
54 | | |
55 | 46 | bitmap = ZIP_SOURCE_MAKE_COMMAND_BITMASK(cmd0); |
56 | | |
57 | | |
58 | 46 | va_start(ap, cmd0); |
59 | 92 | for (;;) { |
60 | 92 | int cmd = va_arg(ap, int); |
61 | 92 | if (cmd < 0) { |
62 | 46 | break; |
63 | 46 | } |
64 | 46 | bitmap |= ZIP_SOURCE_MAKE_COMMAND_BITMASK(cmd); |
65 | 46 | } |
66 | 46 | va_end(ap); |
67 | | |
68 | 46 | return bitmap; |
69 | 46 | } |
70 | | |
71 | | |
72 | 0 | ZIP_EXTERN int zip_source_is_seekable(zip_source_t *src) { |
73 | 0 | return ZIP_SOURCE_CHECK_SUPPORTED(zip_source_supports(src->src), ZIP_SOURCE_SEEK); |
74 | 0 | } |