/* * io.h * This file has no copyright assigned and is placed in the Public Domain. * This file is a part of the mingw-runtime package. * No warranty is given; refer to the file DISCLAIMER within the package. * * System level I/O functions and types. * */ #ifndef _IO_H_ #define _IO_H_ /* All the headers include this file. */ #include <_mingw.h> /* MSVC's io.h contains the stuff from dir.h, so I will too. * NOTE: This also defines off_t, the file offset type, through * an inclusion of sys/types.h */ #include /* To get time_t. */ /* * Attributes of files as returned by _findfirst et al. */ #define _A_NORMAL 0x00000000 #define _A_RDONLY 0x00000001 #define _A_HIDDEN 0x00000002 #define _A_SYSTEM 0x00000004 #define _A_VOLID 0x00000008 #define _A_SUBDIR 0x00000010 #define _A_ARCH 0x00000020 #ifndef RC_INVOKED #ifndef _INTPTR_T_DEFINED #define _INTPTR_T_DEFINED #ifdef _WIN64 typedef __int64 intptr_t; #else typedef int intptr_t; #endif #endif #ifndef _FSIZE_T_DEFINED typedef unsigned long _fsize_t; #define _FSIZE_T_DEFINED #endif /* * The maximum length of a file name. You should use GetVolumeInformation * instead of this constant. But hey, this works. * Also defined in stdio.h. */ #ifndef FILENAME_MAX #define FILENAME_MAX (260) #endif /* * The following structure is filled in by _findfirst or _findnext when * they succeed in finding a match. */ struct _finddata_t { unsigned attrib; /* Attributes, see constants above. */ time_t time_create; time_t time_access; /* always midnight local time */ time_t time_write; _fsize_t size; char name[FILENAME_MAX]; /* may include spaces. */ }; struct _finddatai64_t { unsigned attrib; time_t time_create; time_t time_access; time_t time_write; __int64 size; char name[FILENAME_MAX]; }; struct __finddata64_t { unsigned attrib; __time64_t time_create; __time64_t time_access; __time64_t time_write; _fsize_t size; char name[FILENAME_MAX]; }; #ifndef _WFINDDATA_T_DEFINED struct _wfinddata_t { unsigned attrib; time_t time_create; /* -1 for FAT file systems */ time_t time_access; /* -1 for FAT file systems */ time_t time_write; _fsize_t size; wchar_t name[FILENAME_MAX]; /* may include spaces. */ }; struct _wfinddatai64_t { unsigned attrib; time_t time_create; time_t time_access; time_t time_write; __int64 size; wchar_t name[FILENAME_MAX]; }; struct __wfinddata64_t { unsigned attrib; __time64_t time_create; __time64_t time_access; __time64_t time_write; _fsize_t size; wchar_t name[FILENAME_MAX]; }; #define _WFINDDATA_T_DEFINED #endif #ifdef __cplusplus extern "C" { #endif /* * Functions for searching for files. _findfirst returns -1 if no match * is found. Otherwise it returns a handle to be used in _findnext and * _findclose calls. _findnext also returns -1 if no match could be found, * and 0 if a match was found. Call _findclose when you are finished. */ /* FIXME: Should these all use intptr_t, as per recent MSDN docs? */ _CRTIMP long __cdecl _findfirst (const char*, struct _finddata_t*); _CRTIMP int __cdecl _findnext (long, struct _finddata_t*); _CRTIMP int __cdecl _findclose (long); _CRTIMP int __cdecl _chdir (const char*); _CRTIMP char* __cdecl _getcwd (char*, int); _CRTIMP int __cdecl _mkdir (const char*); _CRTIMP char* __cdecl _mktemp (char*); _CRTIMP int __cdecl _rmdir (const char*); _CRTIMP int __cdecl _chmod (const char*, int); #ifdef __MSVCRT__ _CRTIMP __int64 __cdecl _filelengthi64(int); _CRTIMP long __cdecl _findfirsti64(const char*, struct _finddatai64_t*); _CRTIMP int __cdecl _findnexti64(long, struct _finddatai64_t*); _CRTIMP __int64 __cdecl _lseeki64(int, __int64, int); _CRTIMP __int64 __cdecl _telli64(int); /* These require newer versions of msvcrt.dll (6.1 or higher). */ #if __MSVCRT_VERSION__ >= 0x0601 _CRTIMP intptr_t __cdecl _findfirst64(const char*, struct __finddata64_t*); _CRTIMP intptr_t __cdecl _findnext64(intptr_t, struct __finddata64_t*); #endif /* __MSVCRT_VERSION__ >= 0x0601 */ #ifndef __NO_MINGW_LFS __CRT_INLINE off64_t lseek64 (int, off64_t, int); __CRT_INLINE off64_t lseek64 (int fd, off64_t offset, int whence) { return _lseeki64(fd, (__int64) offset, whence); } #endif #endif /* __MSVCRT__ */ #ifndef _NO_OLDNAMES #ifndef _UWIN _CRTIMP int __cdecl chdir (const char*); _CRTIMP char* __cdecl getcwd (char*, int); _CRTIMP int __cdecl mkdir (const char*); _CRTIMP char* __cdecl mktemp (char*); _CRTIMP int __cdecl rmdir (const char*); _CRTIMP int __cdecl chmod (const char*, int); #endif /* _UWIN */ #endif /* Not _NO_OLDNAMES */ #ifdef __cplusplus } #endif #endif /* Not RC_INVOKED */ /* TODO: Maximum number of open handles has not been tested, I just set * it the same as FOPEN_MAX. */ #define HANDLE_MAX FOPEN_MAX /* Some defines for _access nAccessMode (MS doesn't define them, but * it doesn't seem to hurt to add them). */ #define F_OK 0 /* Check for file existence */ /* Well maybe it does hurt. On newer versions of MSVCRT, an access mode of 1 causes invalid parameter error. */ #define X_OK 1 /* MS access() doesn't check for execute permission. */ #define W_OK 2 /* Check for write permission */ #define R_OK 4 /* Check for read permission */ #ifndef RC_INVOKED #ifdef __cplusplus extern "C" { #endif _CRTIMP int __cdecl _access (const char*, int); _CRTIMP int __cdecl _chsize (int, long); _CRTIMP int __cdecl _close (int); _CRTIMP int __cdecl _commit(int); /* NOTE: The only significant bit in unPermissions appears to be bit 7 (0x80), * the "owner write permission" bit (on FAT). */ _CRTIMP int __cdecl _creat (const char*, int); _CRTIMP int __cdecl _dup (int); _CRTIMP int __cdecl _dup2 (int, int); _CRTIMP long __cdecl _filelength (int); _CRTIMP long __cdecl _get_osfhandle (int); _CRTIMP int __cdecl _isatty (int); /* In a very odd turn of events this function is excluded from those * files which define _STREAM_COMPAT. This is required in order to * build GNU libio because of a conflict with _eof in streambuf.h * line 107. Actually I might just be able to change the name of * the enum member in streambuf.h... we'll see. TODO */ #ifndef _STREAM_COMPAT _CRTIMP int __cdecl _eof (int); #endif /* LK_... locking commands defined in sys/locking.h. */ _CRTIMP int __cdecl _locking (int, int, long); _CRTIMP long __cdecl _lseek (int, long, int); /* Optional third argument is unsigned unPermissions. */ _CRTIMP int __cdecl _open (const char*, int, ...); _CRTIMP int __cdecl _open_osfhandle (long, int); _CRTIMP int __cdecl _pipe (int *, unsigned int, int); _CRTIMP int __cdecl _read (int, void*, unsigned int); _CRTIMP int __cdecl _setmode (int, int); /* MS puts remove & rename (but not wide versions) in io.h as well as in stdio.h. */ _CRTIMP int __cdecl remove (const char*); _CRTIMP int __cdecl rename (const char*, const char*); /* SH_... flags for nShFlags defined in share.h * Optional fourth argument is unsigned unPermissions */ _CRTIMP int __cdecl _sopen (const char*, int, int, ...); _CRTIMP long __cdecl _tell (int); /* Should umask be in sys/stat.h and/or sys/types.h instead? */ _CRTIMP int __cdecl _umask (int); _CRTIMP int __cdecl _unlink (const char*); _CRTIMP int __cdecl _write (int, const void*, unsigned int); /* Wide character versions. Also declared in wchar.h. */ /* Not in crtdll.dll */ #if !defined (_WIO_DEFINED) #if defined (__MSVCRT__) _CRTIMP int __cdecl _waccess(const wchar_t*, int); _CRTIMP int __cdecl _wchmod(const wchar_t*, int); _CRTIMP int __cdecl _wcreat(const wchar_t*, int); _CRTIMP long __cdecl _wfindfirst(const wchar_t*, struct _wfinddata_t*); _CRTIMP int __cdecl _wfindnext(long, struct _wfinddata_t *); _CRTIMP int __cdecl _wunlink(const wchar_t*); _CRTIMP int __cdecl _wopen(const wchar_t*, int, ...); _CRTIMP int __cdecl _wsopen(const wchar_t*, int, int, ...); _CRTIMP wchar_t * __cdecl _wmktemp(wchar_t*); _CRTIMP long __cdecl _wfindfirsti64(const wchar_t*, struct _wfinddatai64_t*); _CRTIMP int __cdecl _wfindnexti64(long, struct _wfinddatai64_t*); #if __MSVCRT_VERSION__ >= 0x0601 _CRTIMP intptr_t __cdecl _wfindfirst64(const wchar_t*, struct __wfinddata64_t*); _CRTIMP intptr_t __cdecl _wfindnext64(intptr_t, struct __wfinddata64_t*); #endif #endif /* defined (__MSVCRT__) */ #define _WIO_DEFINED #endif /* _WIO_DEFINED */ #ifndef _NO_OLDNAMES /* * Non-underscored versions of non-ANSI functions to improve portability. * These functions live in libmoldname.a. */ #ifndef _UWIN _CRTIMP int __cdecl access (const char*, int); _CRTIMP int __cdecl chsize (int, long ); _CRTIMP int __cdecl close (int); _CRTIMP int __cdecl creat (const char*, int); _CRTIMP int __cdecl dup (int); _CRTIMP int __cdecl dup2 (int, int); _CRTIMP int __cdecl eof (int); _CRTIMP long __cdecl filelength (int); _CRTIMP int __cdecl isatty (int); _CRTIMP long __cdecl lseek (int, long, int); _CRTIMP int __cdecl open (const char*, int, ...); _CRTIMP int __cdecl read (int, void*, unsigned int); _CRTIMP int __cdecl setmode (int, int); _CRTIMP int __cdecl sopen (const char*, int, int, ...); _CRTIMP long __cdecl tell (int); _CRTIMP int __cdecl umask (int); _CRTIMP int __cdecl unlink (const char*); _CRTIMP int __cdecl write (int, const void*, unsigned int); #endif /* _UWIN */ #ifdef __USE_MINGW_ACCESS /* Old versions of MSVCRT access() just ignored X_OK, while the version shipped with Vista, returns an error code. This will restore the old behaviour */ static inline int __mingw_access (const char* __fname, int __mode) { return _access (__fname, __mode & ~X_OK); } #define access(__f,__m) __mingw_access (__f, __m) #endif /* Wide character versions. Also declared in wchar.h. */ /* Where do these live? Not in libmoldname.a nor in libmsvcrt.a */ #if 0 int waccess(const wchar_t *, int); int wchmod(const wchar_t *, int); int wcreat(const wchar_t *, int); long wfindfirst(wchar_t *, struct _wfinddata_t *); int wfindnext(long, struct _wfinddata_t *); int wunlink(const wchar_t *); int wrename(const wchar_t *, const wchar_t *); int wopen(const wchar_t *, int, ...); int wsopen(const wchar_t *, int, int, ...); wchar_t * wmktemp(wchar_t *); #endif #endif /* Not _NO_OLDNAMES */ #ifdef __cplusplus } #endif #endif /* Not RC_INVOKED */ #endif /* _IO_H_ not defined */