| /* |
| * 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 |
| |
| #ifdef _WIN32 |
| # include <fcntl.h> |
| # include <stdint.h> |
| # ifdef lseek |
| # undef lseek |
| # endif |
| # define lseek(f,p,w) _lseeki64((f), (p), (w)) |
| # ifdef stat |
| # undef stat |
| # endif |
| |
| # define stat win32_stat |
| |
| /* |
| * The POSIX definition for the stat() function uses a struct of the |
| * same name (struct stat), that why it takes this extra effort for |
| * redirecting/replacing the stat() function with our own one which |
| * is capable to handle long path names on Windows. |
| * The struct below roughly follows the POSIX definition. Time values |
| * are 64bit, but in cases when _USE_32BIT_TIME_T is defined, they |
| * will be set to values no larger than INT32_MAX which corresponds |
| * to file times up to the year 2038. |
| */ |
| struct win32_stat |
| { |
| _dev_t st_dev; /* ID of device containing file */ |
| _ino_t st_ino; /* inode number */ |
| unsigned short st_mode; /* protection */ |
| short st_nlink; /* number of hard links */ |
| short st_uid; /* user ID of owner */ |
| short st_gid; /* group ID of owner */ |
| _dev_t st_rdev; /* device ID (if special file) */ |
| int64_t st_size; /* total size, in bytes */ |
| int64_t st_atime; /* time of last access */ |
| int64_t st_mtime; /* time of last modification */ |
| int64_t st_ctime; /* time of last status change */ |
| }; |
| |
| # ifdef fstat |
| # undef fstat |
| # endif |
| # define fstat win32_fstat |
| #endif /* defined(_WIN32) */ |
| |
| |
| #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(_WIN32) |
| #ifndef S_IRUSR |
| #define S_IRUSR S_IREAD |
| #endif |
| #ifndef S_IWUSR |
| #define S_IWUSR S_IWRITE |
| #endif |
| #endif |
| |
| #if CONFIG_NETWORK |
| #if defined(_WIN32) |
| #define SHUT_RD SD_RECEIVE |
| #define SHUT_WR SD_SEND |
| #define SHUT_RDWR SD_BOTH |
| #else |
| #include <sys/socket.h> |
| #if !defined(SHUT_RD) /* OS/2, DJGPP */ |
| #define SHUT_RD 0 |
| #define SHUT_WR 1 |
| #define SHUT_RDWR 2 |
| #endif |
| #endif |
| |
| #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 */ |
| |
| #ifdef _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 (get_extended_win32_path(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) |
| |
| static inline int win32_access(const char *filename_utf8, int mode) |
| { |
| wchar_t *filename_w; |
| int ret; |
| if (get_extended_win32_path(filename_utf8, &filename_w)) |
| return -1; |
| if (!filename_w) |
| goto fallback; |
| ret = _waccess(filename_w, mode); |
| av_free(filename_w); |
| return ret; |
| fallback: |
| return _access(filename_utf8, mode); |
| } |
| |
| static inline void copy_stat(struct _stat64 *crtstat, struct win32_stat *buf) |
| { |
| buf->st_dev = crtstat->st_dev; |
| buf->st_ino = crtstat->st_ino; |
| buf->st_mode = crtstat->st_mode; |
| buf->st_nlink = crtstat->st_nlink; |
| buf->st_uid = crtstat->st_uid; |
| buf->st_gid = crtstat->st_gid; |
| buf->st_rdev = crtstat->st_rdev; |
| buf->st_size = crtstat->st_size; |
| buf->st_atime = crtstat->st_atime; |
| buf->st_mtime = crtstat->st_mtime; |
| buf->st_ctime = crtstat->st_ctime; |
| } |
| |
| static inline int win32_stat(const char *filename_utf8, struct win32_stat *buf) |
| { |
| struct _stat64 crtstat = { 0 }; |
| wchar_t *filename_w; |
| int ret; |
| |
| if (get_extended_win32_path(filename_utf8, &filename_w)) |
| return -1; |
| |
| if (filename_w) { |
| ret = _wstat64(filename_w, &crtstat); |
| av_free(filename_w); |
| } else |
| ret = _stat64(filename_utf8, &crtstat); |
| |
| copy_stat(&crtstat, buf); |
| |
| return ret; |
| } |
| |
| static inline int win32_fstat(int fd, struct win32_stat *buf) |
| { |
| struct _stat64 crtstat = { 0 }; |
| int ret; |
| |
| ret = _fstat64(fd, &crtstat); |
| |
| copy_stat(&crtstat, buf); |
| |
| return ret; |
| } |
| |
| static inline int win32_rename(const char *src_utf8, const char *dest_utf8) |
| { |
| wchar_t *src_w, *dest_w; |
| int ret; |
| |
| if (get_extended_win32_path(src_utf8, &src_w)) |
| return -1; |
| if (get_extended_win32_path(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 */ |