1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/*
* various OS-feature replacement utilities
* copyright (c) 2000, 2001, 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_OS_SUPPORT_H
#define AVFORMAT_OS_SUPPORT_H
/**
* @file
* miscellaneous OS support macros and functions.
*/
#include "config.h"
#include <sys/stat.h>
#ifdef _WIN32
#if HAVE_DIRECT_H
#include <direct.h>
#endif
#if HAVE_IO_H
#include <io.h>
#endif
#endif
#if defined(_WIN32) && !defined(__MINGW32CE__)
# include <fcntl.h>
# ifdef lseek
# undef lseek
# endif
# define lseek(f,p,w) _lseeki64((f), (p), (w))
# ifdef stat
# undef stat
# endif
# define stat _stati64
# ifdef fstat
# undef fstat
# endif
# define fstat(f,s) _fstati64((f), (s))
#endif /* defined(_WIN32) && !defined(__MINGW32CE__) */
#ifdef __ANDROID__
# if HAVE_UNISTD_H
# include <unistd.h>
# endif
# ifdef lseek
# undef lseek
# endif
# define lseek(f,p,w) lseek64((f), (p), (w))
#endif
static inline int is_dos_path(const char *path)
{
#if HAVE_DOS_PATHS
if (path[0] && path[1] == ':')
return 1;
#endif
return 0;
}
#if defined(__OS2__)
#define SHUT_RD 0
#define SHUT_WR 1
#define SHUT_RDWR 2
#endif
#if defined(_WIN32)
#define SHUT_RD SD_RECEIVE
#define SHUT_WR SD_SEND
#define SHUT_RDWR SD_BOTH
#ifndef S_IRUSR
#define S_IRUSR S_IREAD
#endif
#ifndef S_IWUSR
#define S_IWUSR S_IWRITE
#endif
#endif
#if CONFIG_NETWORK
#if !HAVE_SOCKLEN_T
typedef int socklen_t;
#endif
/* most of the time closing a socket is just closing an fd */
#if !HAVE_CLOSESOCKET
#define closesocket close
#endif
#if !HAVE_POLL_H
typedef unsigned long nfds_t;
#if HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#if !HAVE_STRUCT_POLLFD
struct pollfd {
int fd;
short events; /* events to look for */
short revents; /* events that occurred */
};
/* events & revents */
#define POLLIN 0x0001 /* any readable data available */
#define POLLOUT 0x0002 /* file descriptor is writeable */
#define POLLRDNORM POLLIN
#define POLLWRNORM POLLOUT
#define POLLRDBAND 0x0008 /* priority readable data */
#define POLLWRBAND 0x0010 /* priority data can be written */
#define POLLPRI 0x0020 /* high priority readable data */
/* revents only */
#define POLLERR 0x0004 /* errors pending */
#define POLLHUP 0x0080 /* disconnected */
#define POLLNVAL 0x1000 /* invalid file descriptor */
#endif
int ff_poll(struct pollfd *fds, nfds_t numfds, int timeout);
#define poll ff_poll
#endif /* HAVE_POLL_H */
#endif /* CONFIG_NETWORK */
#if defined(__MINGW32CE__)
#define mkdir(a, b) _mkdir(a)
#elif defined(_WIN32)
#include <stdio.h>
#include <windows.h>
#include "libavutil/wchar_filename.h"
#define DEF_FS_FUNCTION(name, wfunc, afunc) \
static inline int win32_##name(const char *filename_utf8) \
{ \
wchar_t *filename_w; \
int ret; \
\
if (utf8towchar(filename_utf8, &filename_w)) \
return -1; \
if (!filename_w) \
goto fallback; \
\
ret = wfunc(filename_w); \
av_free(filename_w); \
return ret; \
\
fallback: \
/* filename may be be in CP_ACP */ \
return afunc(filename_utf8); \
}
DEF_FS_FUNCTION(unlink, _wunlink, _unlink)
DEF_FS_FUNCTION(mkdir, _wmkdir, _mkdir)
DEF_FS_FUNCTION(rmdir, _wrmdir , _rmdir)
#define DEF_FS_FUNCTION2(name, wfunc, afunc, partype) \
static inline int win32_##name(const char *filename_utf8, partype par) \
{ \
wchar_t *filename_w; \
int ret; \
\
if (utf8towchar(filename_utf8, &filename_w)) \
return -1; \
if (!filename_w) \
goto fallback; \
\
ret = wfunc(filename_w, par); \
av_free(filename_w); \
return ret; \
\
fallback: \
/* filename may be be in CP_ACP */ \
return afunc(filename_utf8, par); \
}
DEF_FS_FUNCTION2(access, _waccess, _access, int)
DEF_FS_FUNCTION2(stat, _wstati64, _stati64, struct stat*)
static inline int win32_rename(const char *src_utf8, const char *dest_utf8)
{
wchar_t *src_w, *dest_w;
int ret;
if (utf8towchar(src_utf8, &src_w))
return -1;
if (utf8towchar(dest_utf8, &dest_w)) {
av_free(src_w);
return -1;
}
if (!src_w || !dest_w) {
av_free(src_w);
av_free(dest_w);
goto fallback;
}
ret = MoveFileExW(src_w, dest_w, MOVEFILE_REPLACE_EXISTING);
av_free(src_w);
av_free(dest_w);
// Lacking proper mapping from GetLastError() error codes to errno codes
if (ret)
errno = EPERM;
return ret;
fallback:
/* filename may be be in CP_ACP */
#if !HAVE_UWP
ret = MoveFileExA(src_utf8, dest_utf8, MOVEFILE_REPLACE_EXISTING);
if (ret)
errno = EPERM;
#else
/* Windows Phone doesn't have MoveFileExA, and for Windows Store apps,
* it is available but not allowed by the app certification kit. However,
* it's unlikely that anybody would input filenames in CP_ACP there, so this
* fallback is kept mostly for completeness. Alternatively we could
* do MultiByteToWideChar(CP_ACP) and use MoveFileExW, but doing
* explicit conversions with CP_ACP is allegedly forbidden in windows
* store apps (or windows phone), and the notion of a native code page
* doesn't make much sense there. */
ret = rename(src_utf8, dest_utf8);
#endif
return ret;
}
#define mkdir(a, b) win32_mkdir(a)
#define rename win32_rename
#define rmdir win32_rmdir
#define unlink win32_unlink
#define access win32_access
#endif
#endif /* AVFORMAT_OS_SUPPORT_H */
|
