nativelibc/include/unistd.h

#ifndef _UNISTD_H
#define _UNISTD_H

#define	_IO_H_

#include <sys/types.h>

/*
 * 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

#ifdef	__cplusplus
extern "C" {
#endif

_CRTIMP int __cdecl __MINGW_NOTHROW chdir(const char *);
_CRTIMP char *__cdecl __MINGW_NOTHROW getcwd(char *, int);
_CRTIMP char *__cdecl __MINGW_NOTHROW mktemp(char *);
//_CRTIMP int __cdecl __MINGW_NOTHROW chmod(const char *, mode_t);

#ifdef __MSVCRT__
_CRTIMP __int64 __cdecl __MINGW_NOTHROW _lseeki64(int, __int64, int);
_CRTIMP __int64 __cdecl __MINGW_NOTHROW _telli64(int);

#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__ */

#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	/* Execute permission, Always OK */
#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 __MINGW_NOTHROW access(const char*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW chsize(int, long);
_CRTIMP int __cdecl __MINGW_NOTHROW close(int);
_CRTIMP int __cdecl __MINGW_NOTHROW 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 __MINGW_NOTHROW creat(const char *, mode_t);

_CRTIMP int __cdecl __MINGW_NOTHROW dup (int);
_CRTIMP int __cdecl __MINGW_NOTHROW dup2 (int, int);
_CRTIMP long __cdecl __MINGW_NOTHROW filelength (int);
_CRTIMP long __cdecl __MINGW_NOTHROW get_osfhandle (int);
_CRTIMP int __cdecl __MINGW_NOTHROW 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 __MINGW_NOTHROW _eof (int);
#endif

/* LK_... locking commands defined in sys/locking.h. */
_CRTIMP int __cdecl __MINGW_NOTHROW _locking(int, int, long);

_CRTIMP long __cdecl __MINGW_NOTHROW lseek(int, off_t, int);

/* Optional third argument is unsigned unPermissions. */
_CRTIMP int __cdecl __MINGW_NOTHROW open(const char *, int, ...);

_CRTIMP int __cdecl __MINGW_NOTHROW _open_osfhandle (long, int);
_CRTIMP int __cdecl __MINGW_NOTHROW pipe(int *, unsigned int, int);
_CRTIMP int __cdecl __MINGW_NOTHROW read(int, void *, unsigned int);
_CRTIMP int __cdecl __MINGW_NOTHROW _setmode(int, int);
/* MS puts remove & rename (but not wide versions) in io.h as well
   as in stdio.h. */
_CRTIMP int __cdecl __MINGW_NOTHROW remove(const char *);
_CRTIMP int __cdecl __MINGW_NOTHROW rename(const char *, const char *);

/* SH_... flags for nShFlags defined in share.h
 * Optional fourth argument is unsigned unPermissions */
_CRTIMP int __cdecl __MINGW_NOTHROW _sopen(const char *, int, int, ...);

_CRTIMP long __cdecl __MINGW_NOTHROW _tell(int);
/* Should umask be in sys/stat.h and/or sys/types.h instead? */
_CRTIMP int __cdecl __MINGW_NOTHROW umask(int);
_CRTIMP int __cdecl __MINGW_NOTHROW unlink(const char *);
_CRTIMP int __cdecl __MINGW_NOTHROW write(int, const void *, unsigned int);

#ifdef	__cplusplus
}
#endif

#endif	/* Not RC_INVOKED */

#include <process.h>

#define __UNISTD_GETOPT__
#include <getopt.h>
#undef __UNISTD_GETOPT__

/* These are also defined in stdio.h. */
#ifndef	SEEK_SET
#define SEEK_SET 0
#endif

#ifndef	SEEK_CUR
#define SEEK_CUR 1
#endif

#ifndef SEEK_END
#define SEEK_END 2
#endif

#ifdef __cplusplus
extern "C" {
#endif


/* This is defined as a real library function to allow autoconf
   to verify its existence. */
int ftruncate(int, off_t);
__CRT_INLINE int ftruncate(int __fd, off_t __length)
{
  return chsize(__fd, __length);
}

#ifdef __cplusplus
}
#endif

#endif /* _UNISTD_H */