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2ba45a60 DM |
1 | /* |
2 | * various OS-feature replacement utilities | |
3 | * copyright (c) 2000, 2001, 2002 Fabrice Bellard | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | #ifndef AVFORMAT_OS_SUPPORT_H | |
23 | #define AVFORMAT_OS_SUPPORT_H | |
24 | ||
25 | /** | |
26 | * @file | |
27 | * miscellaneous OS support macros and functions. | |
28 | */ | |
29 | ||
30 | #include "config.h" | |
31 | ||
32 | #include <sys/stat.h> | |
33 | ||
f6fa7814 DM |
34 | #ifdef _WIN32 |
35 | #if HAVE_DIRECT_H | |
36 | #include <direct.h> | |
37 | #endif | |
38 | #if HAVE_IO_H | |
39 | #include <io.h> | |
40 | #endif | |
41 | #endif | |
42 | ||
2ba45a60 DM |
43 | #if defined(_WIN32) && !defined(__MINGW32CE__) |
44 | # include <fcntl.h> | |
45 | # ifdef lseek | |
46 | # undef lseek | |
47 | # endif | |
48 | # define lseek(f,p,w) _lseeki64((f), (p), (w)) | |
49 | # ifdef stat | |
50 | # undef stat | |
51 | # endif | |
52 | # define stat _stati64 | |
53 | # ifdef fstat | |
54 | # undef fstat | |
55 | # endif | |
56 | # define fstat(f,s) _fstati64((f), (s)) | |
57 | #endif /* defined(_WIN32) && !defined(__MINGW32CE__) */ | |
58 | ||
f6fa7814 DM |
59 | |
60 | #ifdef __ANDROID__ | |
61 | # if HAVE_UNISTD_H | |
62 | # include <unistd.h> | |
63 | # endif | |
64 | # ifdef lseek | |
65 | # undef lseek | |
66 | # endif | |
67 | # define lseek(f,p,w) lseek64((f), (p), (w)) | |
2ba45a60 DM |
68 | #endif |
69 | ||
70 | static inline int is_dos_path(const char *path) | |
71 | { | |
72 | #if HAVE_DOS_PATHS | |
73 | if (path[0] && path[1] == ':') | |
74 | return 1; | |
75 | #endif | |
76 | return 0; | |
77 | } | |
78 | ||
79 | #if defined(__OS2__) || defined(__Plan9__) | |
80 | #define SHUT_RD 0 | |
81 | #define SHUT_WR 1 | |
82 | #define SHUT_RDWR 2 | |
83 | #endif | |
84 | ||
85 | #if defined(_WIN32) | |
86 | #define SHUT_RD SD_RECEIVE | |
87 | #define SHUT_WR SD_SEND | |
88 | #define SHUT_RDWR SD_BOTH | |
89 | ||
90 | #ifndef S_IRUSR | |
91 | #define S_IRUSR S_IREAD | |
92 | #endif | |
93 | #ifndef S_IWUSR | |
94 | #define S_IWUSR S_IWRITE | |
95 | #endif | |
96 | #endif | |
97 | ||
98 | #if CONFIG_NETWORK | |
99 | #if !HAVE_SOCKLEN_T | |
100 | typedef int socklen_t; | |
101 | #endif | |
102 | ||
103 | /* most of the time closing a socket is just closing an fd */ | |
104 | #if !HAVE_CLOSESOCKET | |
105 | #define closesocket close | |
106 | #endif | |
107 | ||
108 | #if !HAVE_POLL_H | |
109 | typedef unsigned long nfds_t; | |
110 | ||
111 | #if HAVE_WINSOCK2_H | |
112 | #include <winsock2.h> | |
113 | #endif | |
114 | #if !HAVE_STRUCT_POLLFD | |
115 | struct pollfd { | |
116 | int fd; | |
117 | short events; /* events to look for */ | |
118 | short revents; /* events that occurred */ | |
119 | }; | |
120 | ||
121 | /* events & revents */ | |
122 | #define POLLIN 0x0001 /* any readable data available */ | |
123 | #define POLLOUT 0x0002 /* file descriptor is writeable */ | |
124 | #define POLLRDNORM POLLIN | |
125 | #define POLLWRNORM POLLOUT | |
126 | #define POLLRDBAND 0x0008 /* priority readable data */ | |
127 | #define POLLWRBAND 0x0010 /* priority data can be written */ | |
128 | #define POLLPRI 0x0020 /* high priority readable data */ | |
129 | ||
130 | /* revents only */ | |
131 | #define POLLERR 0x0004 /* errors pending */ | |
132 | #define POLLHUP 0x0080 /* disconnected */ | |
133 | #define POLLNVAL 0x1000 /* invalid file descriptor */ | |
134 | #endif | |
135 | ||
136 | ||
137 | int ff_poll(struct pollfd *fds, nfds_t numfds, int timeout); | |
138 | #define poll ff_poll | |
139 | #endif /* HAVE_POLL_H */ | |
140 | #endif /* CONFIG_NETWORK */ | |
141 | ||
f6fa7814 DM |
142 | #if defined(__MINGW32CE__) |
143 | #define mkdir(a, b) _mkdir(a) | |
144 | #elif defined(_WIN32) | |
145 | #include <stdio.h> | |
146 | #include <windows.h> | |
147 | #include "libavutil/wchar_filename.h" | |
148 | ||
149 | #define DEF_FS_FUNCTION(name, wfunc, afunc) \ | |
150 | static inline int win32_##name(const char *filename_utf8) \ | |
151 | { \ | |
152 | wchar_t *filename_w; \ | |
153 | int ret; \ | |
154 | \ | |
155 | if (utf8towchar(filename_utf8, &filename_w)) \ | |
156 | return -1; \ | |
157 | if (!filename_w) \ | |
158 | goto fallback; \ | |
159 | \ | |
160 | ret = wfunc(filename_w); \ | |
161 | av_free(filename_w); \ | |
162 | return ret; \ | |
163 | \ | |
164 | fallback: \ | |
165 | /* filename may be be in CP_ACP */ \ | |
166 | return afunc(filename_utf8); \ | |
167 | } | |
168 | ||
169 | DEF_FS_FUNCTION(unlink, _wunlink, _unlink) | |
170 | DEF_FS_FUNCTION(mkdir, _wmkdir, _mkdir) | |
171 | DEF_FS_FUNCTION(rmdir, _wrmdir , _rmdir) | |
172 | ||
173 | static inline int win32_rename(const char *src_utf8, const char *dest_utf8) | |
174 | { | |
175 | wchar_t *src_w, *dest_w; | |
176 | int ret; | |
177 | ||
178 | if (utf8towchar(src_utf8, &src_w)) | |
179 | return -1; | |
180 | if (utf8towchar(dest_utf8, &dest_w)) { | |
181 | av_free(src_w); | |
182 | return -1; | |
183 | } | |
184 | if (!src_w || !dest_w) { | |
185 | av_free(src_w); | |
186 | av_free(dest_w); | |
187 | goto fallback; | |
188 | } | |
189 | ||
190 | ret = MoveFileExW(src_w, dest_w, MOVEFILE_REPLACE_EXISTING); | |
191 | av_free(src_w); | |
192 | av_free(dest_w); | |
193 | // Lacking proper mapping from GetLastError() error codes to errno codes | |
194 | if (ret) | |
195 | errno = EPERM; | |
196 | return ret; | |
197 | ||
198 | fallback: | |
199 | /* filename may be be in CP_ACP */ | |
200 | #if HAVE_MOVEFILEEXA | |
201 | ret = MoveFileExA(src_utf8, dest_utf8, MOVEFILE_REPLACE_EXISTING); | |
202 | if (ret) | |
203 | errno = EPERM; | |
204 | #else | |
205 | /* Windows Phone doesn't have MoveFileExA. However, it's unlikely | |
206 | * that anybody would input filenames in CP_ACP there, so this | |
207 | * fallback is kept mostly for completeness. Alternatively we could | |
208 | * do MultiByteToWideChar(CP_ACP) and use MoveFileExW, but doing | |
209 | * explicit conversions with CP_ACP is allegedly forbidden in windows | |
210 | * store apps (or windows phone), and the notion of a native code page | |
211 | * doesn't make much sense there. */ | |
212 | ret = rename(src_utf8, dest_utf8); | |
213 | #endif | |
214 | return ret; | |
215 | } | |
216 | ||
217 | #define mkdir(a, b) win32_mkdir(a) | |
218 | #define rename win32_rename | |
219 | #define rmdir win32_rmdir | |
220 | #define unlink win32_unlink | |
221 | ||
222 | #endif | |
223 | ||
2ba45a60 | 224 | #endif /* AVFORMAT_OS_SUPPORT_H */ |