/src/ffmpeg/libavutil/getenv_utf8.h
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1 | | /* |
2 | | * This file is part of FFmpeg. |
3 | | * |
4 | | * FFmpeg is free software; you can redistribute it and/or |
5 | | * modify it under the terms of the GNU Lesser General Public |
6 | | * License as published by the Free Software Foundation; either |
7 | | * version 2.1 of the License, or (at your option) any later version. |
8 | | * |
9 | | * FFmpeg is distributed in the hope that it will be useful, |
10 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | | * Lesser General Public License for more details. |
13 | | * |
14 | | * You should have received a copy of the GNU Lesser General Public |
15 | | * License along with FFmpeg; if not, write to the Free Software |
16 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
17 | | */ |
18 | | |
19 | | #ifndef AVUTIL_GETENV_UTF8_H |
20 | | #define AVUTIL_GETENV_UTF8_H |
21 | | |
22 | | #include <stdlib.h> |
23 | | |
24 | | #include "config.h" |
25 | | #include "mem.h" |
26 | | |
27 | | #if HAVE_GETENV && defined(_WIN32) |
28 | | |
29 | | #include "libavutil/wchar_filename.h" |
30 | | |
31 | | static inline char *getenv_utf8(const char *varname) |
32 | | { |
33 | | wchar_t *varname_w, *var_w; |
34 | | char *var; |
35 | | |
36 | | if (utf8towchar(varname, &varname_w)) |
37 | | return NULL; |
38 | | if (!varname_w) |
39 | | return NULL; |
40 | | |
41 | | var_w = _wgetenv(varname_w); |
42 | | av_free(varname_w); |
43 | | |
44 | | if (!var_w) |
45 | | return NULL; |
46 | | if (wchartoutf8(var_w, &var)) |
47 | | return NULL; |
48 | | |
49 | | return var; |
50 | | |
51 | | // No CP_ACP fallback compared to other *_utf8() functions: |
52 | | // non UTF-8 strings must not be returned. |
53 | | } |
54 | | |
55 | | static inline void freeenv_utf8(char *var) |
56 | | { |
57 | | av_free(var); |
58 | | } |
59 | | |
60 | | static inline char *getenv_dup(const char *varname) |
61 | | { |
62 | | return getenv_utf8(varname); |
63 | | } |
64 | | |
65 | | #else |
66 | | |
67 | | static inline char *getenv_utf8(const char *varname) |
68 | 0 | { |
69 | 0 | return getenv(varname); |
70 | 0 | } |
71 | | |
72 | | static inline void freeenv_utf8(char *var) |
73 | 0 | { |
74 | 0 | } |
75 | | |
76 | | static inline char *getenv_dup(const char *varname) |
77 | 0 | { |
78 | 0 | char *var = getenv(varname); |
79 | 0 | if (!var) |
80 | 0 | return NULL; |
81 | 0 | return av_strdup(var); |
82 | 0 | } |
83 | | |
84 | | #endif // HAVE_GETENV && defined(_WIN32) |
85 | | |
86 | | #endif // AVUTIL_GETENV_UTF8_H |