/src/libzip/lib/zip_source_get_dostime.c
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1 | | /* |
2 | | zip_source_get_dostime.c -- get modification time in DOS format from source |
3 | | Copyright (C) 2024 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 | | /* Returns -1 on error, 0 on no dostime available, 1 for dostime returned */ |
38 | | int |
39 | 0 | zip_source_get_dos_time(zip_source_t *src, zip_dostime_t *dos_time) { |
40 | 0 | if (src->source_closed) { |
41 | 0 | return -1; |
42 | 0 | } |
43 | 0 | if (dos_time == NULL) { |
44 | 0 | zip_error_set(&src->error, ZIP_ER_INVAL, 0); |
45 | 0 | return -1; |
46 | 0 | } |
47 | | |
48 | 0 | if (src->write_state == ZIP_SOURCE_WRITE_REMOVED) { |
49 | 0 | zip_error_set(&src->error, ZIP_ER_READ, ENOENT); |
50 | 0 | } |
51 | |
|
52 | 0 | if (zip_source_supports(src) & ZIP_SOURCE_MAKE_COMMAND_BITMASK(ZIP_SOURCE_GET_DOS_TIME)) { |
53 | 0 | zip_int64_t n = _zip_source_call(src, dos_time, sizeof(*dos_time), ZIP_SOURCE_GET_DOS_TIME); |
54 | |
|
55 | 0 | if (n < 0) { |
56 | 0 | return -1; |
57 | 0 | } |
58 | 0 | else if (n == 0) { |
59 | 0 | return 0; |
60 | 0 | } |
61 | 0 | else if (n == sizeof(*dos_time)) { |
62 | 0 | return 1; |
63 | 0 | } |
64 | 0 | else { |
65 | 0 | zip_error_set(&src->error, ZIP_ER_INTERNAL, 0); |
66 | 0 | return -1; |
67 | 0 | } |
68 | 0 | } |
69 | 0 | else { |
70 | 0 | return 0; |
71 | 0 | } |
72 | 0 | } |