/src/flac/include/share/safe_str.h
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1 | | /* libFLAC - Free Lossless Audio Codec library |
2 | | * Copyright (C) 2013-2025 Xiph.Org Foundation |
3 | | * |
4 | | * Redistribution and use in source and binary forms, with or without |
5 | | * modification, are permitted provided that the following conditions |
6 | | * are met: |
7 | | * |
8 | | * - Redistributions of source code must retain the above copyright |
9 | | * notice, this list of conditions and the following disclaimer. |
10 | | * |
11 | | * - Redistributions in binary form must reproduce the above copyright |
12 | | * notice, this list of conditions and the following disclaimer in the |
13 | | * documentation and/or other materials provided with the distribution. |
14 | | * |
15 | | * - Neither the name of the Xiph.org Foundation nor the names of its |
16 | | * contributors may be used to endorse or promote products derived from |
17 | | * this software without specific prior written permission. |
18 | | * |
19 | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
20 | | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
21 | | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
22 | | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
23 | | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
24 | | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
25 | | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
26 | | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
27 | | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
28 | | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
29 | | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | | */ |
31 | | |
32 | | /* Safe string handling functions to replace things like strcpy, strncpy, |
33 | | * strcat, strncat etc. |
34 | | * All of these functions guarantee a correctly NUL terminated string but |
35 | | * the string may be truncated if the destination buffer was too short. |
36 | | */ |
37 | | |
38 | | #ifndef FLAC__SHARE_SAFE_STR_H |
39 | | #define FLAC__SHARE_SAFE_STR_H |
40 | | |
41 | | static inline char * |
42 | | safe_strncat(char *dest, const char *src, size_t dest_size) |
43 | 41.0k | { |
44 | 41.0k | char * ret; |
45 | | |
46 | 41.0k | if (dest_size < 1) |
47 | 0 | return dest; |
48 | | |
49 | | /* Assume dist has space for a term character .. */ |
50 | 41.0k | ret = strncat(dest, src, dest_size - strlen (dest)); |
51 | | /* .. but set it explicitly. */ |
52 | 41.0k | dest [dest_size - 1] = 0; |
53 | | |
54 | 41.0k | return ret; |
55 | 41.0k | } Line | Count | Source | 43 | 580 | { | 44 | 580 | char * ret; | 45 | | | 46 | 580 | if (dest_size < 1) | 47 | 0 | return dest; | 48 | | | 49 | | /* Assume dist has space for a term character .. */ | 50 | 580 | ret = strncat(dest, src, dest_size - strlen (dest)); | 51 | | /* .. but set it explicitly. */ | 52 | 580 | dest [dest_size - 1] = 0; | 53 | | | 54 | 580 | return ret; | 55 | 580 | } |
Unexecuted instantiation: tool_flac.c:safe_strncat Unexecuted instantiation: utf8.c:safe_strncat Unexecuted instantiation: iconvert.c:safe_strncat Unexecuted instantiation: cuesheet.c:safe_strncat Unexecuted instantiation: picture.c:safe_strncat Unexecuted instantiation: replaygain.c:safe_strncat Line | Count | Source | 43 | 40.4k | { | 44 | 40.4k | char * ret; | 45 | | | 46 | 40.4k | if (dest_size < 1) | 47 | 0 | return dest; | 48 | | | 49 | | /* Assume dist has space for a term character .. */ | 50 | 40.4k | ret = strncat(dest, src, dest_size - strlen (dest)); | 51 | | /* .. but set it explicitly. */ | 52 | 40.4k | dest [dest_size - 1] = 0; | 53 | | | 54 | 40.4k | return ret; | 55 | 40.4k | } |
|
56 | | |
57 | | static inline char * |
58 | | safe_strncpy(char *dest, const char *src, size_t dest_size) |
59 | 4.11k | { |
60 | 4.11k | char * ret; |
61 | | |
62 | 4.11k | if (dest_size < 1) |
63 | 0 | return dest; |
64 | | |
65 | 4.11k | ret = strncpy(dest, src, dest_size - 1); |
66 | 4.11k | dest [dest_size - 1] = 0; |
67 | | |
68 | 4.11k | return ret; |
69 | 4.11k | } Unexecuted instantiation: encode.c:safe_strncpy Unexecuted instantiation: tool_flac.c:safe_strncpy Unexecuted instantiation: utf8.c:safe_strncpy Unexecuted instantiation: iconvert.c:safe_strncpy Line | Count | Source | 59 | 433 | { | 60 | 433 | char * ret; | 61 | | | 62 | 433 | if (dest_size < 1) | 63 | 0 | return dest; | 64 | | | 65 | 433 | ret = strncpy(dest, src, dest_size - 1); | 66 | 433 | dest [dest_size - 1] = 0; | 67 | | | 68 | 433 | return ret; | 69 | 433 | } |
Unexecuted instantiation: picture.c:safe_strncpy replaygain.c:safe_strncpy Line | Count | Source | 59 | 3.68k | { | 60 | 3.68k | char * ret; | 61 | | | 62 | 3.68k | if (dest_size < 1) | 63 | 0 | return dest; | 64 | | | 65 | 3.68k | ret = strncpy(dest, src, dest_size - 1); | 66 | 3.68k | dest [dest_size - 1] = 0; | 67 | | | 68 | 3.68k | return ret; | 69 | 3.68k | } |
Unexecuted instantiation: utils.c:safe_strncpy |
70 | | |
71 | | #endif /* FLAC__SHARE_SAFE_STR_H */ |