/src/libzip/lib/zip_add_entry.c
Line | Count | Source |
1 | | /* |
2 | | zip_add_entry.c -- create and init struct zip_entry |
3 | | Copyright (C) 1999-2025 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 <stdlib.h> |
36 | | |
37 | | #include "zipint.h" |
38 | | |
39 | | |
40 | | /* NOTE: Signed due to -1 on error. See zip_add.c for more details. */ |
41 | | |
42 | 1.03k | zip_int64_t _zip_add_entry(zip_t *za) { |
43 | 1.03k | zip_uint64_t idx; |
44 | | |
45 | 1.03k | if (za->nentry + 1 >= za->nentry_alloc) { |
46 | 1.03k | zip_uint64_t additional_entries = 2 * za->nentry_alloc; |
47 | | |
48 | 1.03k | if (additional_entries < 16) { |
49 | 1.03k | additional_entries = 16; |
50 | 1.03k | } |
51 | 0 | else if (additional_entries > 1024) { |
52 | 0 | additional_entries = 1024; |
53 | 0 | } |
54 | | |
55 | 1.03k | if (!ZIP_REALLOC(za->entry, za->nentry_alloc, additional_entries, &za->error)) { |
56 | 0 | return -1; |
57 | 0 | } |
58 | 1.03k | } |
59 | | |
60 | 1.03k | idx = za->nentry++; |
61 | | |
62 | 1.03k | _zip_entry_init(za->entry + idx); |
63 | | |
64 | 1.03k | return (zip_int64_t)idx; |
65 | 1.03k | } |