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
getenv_utf8(const char * varname)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
freeenv_utf8(char * var)55 static inline void freeenv_utf8(char *var)
56 {
57 av_free(var);
58 }
59
getenv_dup(const char * varname)60 static inline char *getenv_dup(const char *varname)
61 {
62 return getenv_utf8(varname);
63 }
64
65 #else
66
getenv_utf8(const char * varname)67 static inline char *getenv_utf8(const char *varname)
68 {
69 return getenv(varname);
70 }
71
freeenv_utf8(char * var)72 static inline void freeenv_utf8(char *var)
73 {
74 }
75
getenv_dup(const char * varname)76 static inline char *getenv_dup(const char *varname)
77 {
78 char *var = getenv(varname);
79 if (!var)
80 return NULL;
81 return av_strdup(var);
82 }
83
84 #endif // HAVE_GETENV && defined(_WIN32)
85
86 #endif // AVUTIL_GETENV_UTF8_H
87