#ifndef __UNIXIO_LOADED
#define __UNIXIO_LOADED 1
/****************************************************************************
**
**  <unixio.h> - Prototypes for UNIX emulation functions
**
*****************************************************************************
**  Header is nonstandard
*****************************************************************************
**
**  Copyright 2000 Compaq Computer Corporation
**
**  Compaq and the Compaq logo Registered in U.S. Patent and Trademark Office.
**
**  Confidential computer software. Valid license from Compaq required for
**  possession, use or copying. Consistent with FAR 12.211 and 12.212,
**  Commercial Computer Software, Computer Software Documentation, and
**  Technical Data for Commercial Items are licensed to the U.S. Government
**  under vendor's standard commercial license.
**
******************************************************************************
*/

#pragma __nostandard
#include <decc$types.h>

#ifdef __cplusplus
    extern "C" {
#endif

#include <stdio.h>    /* Definition of rename */
#include <stat.h>     /* Definition of stat, fstat, stat_t */

#if __INITIAL_POINTER_SIZE
#   pragma __pointer_size __save
#   pragma __pointer_size 32
#endif


/*	 
**  Types shared with <types.h>
*/	 
#if !defined __SIZE_T  && !defined _DECC_V4_SOURCE
#   define __SIZE_T 1
    typedef __size_t size_t;
#endif

#if !defined __SSIZE_T  && !defined _DECC_V4_SOURCE
#   define __SSIZE_T
    typedef __ssize_t ssize_t;
#endif

#if !defined __MODE_T  && !defined _DECC_V4_SOURCE
#   define __MODE_T
    typedef __mode_t mode_t;
#endif

#if !defined __UID_T  && !defined _DECC_V4_SOURCE
#   define __UID_T
    typedef __uid_t uid_t;
#endif

#if !defined __GID_T  && !defined _DECC_V4_SOURCE
#   define __GID_T
    typedef __gid_t gid_t;
#endif

#if !defined __OFF_T  && !defined _DECC_V4_SOURCE
#   define __OFF_T
    typedef __off_t off_t;
#endif

/*
**  Defines for the Access() mode argument
*/
#define F_OK 0
#define X_OK 1
#define W_OK 2
#define R_OK 4


/*
**  Functions which return pointers into CRTL owned memory always return a
**  short pointer, regardless of application compilation mode.
*/
char *ttyname (void);


/*
**  We are done defining things which must always be short pointers.  If the
**  user has used /pointer_size=short or /pointer_size=long, we will allow long
**  pointers to be used in function calls.
*/
#if __INITIAL_POINTER_SIZE
#   pragma __pointer_size 64
#endif


/*
**  Functions which accept either 32 or 64 bits pointers
*/

#if __USE_LONG_GID_T
#   pragma __extern_prefix __save
#   pragma __extern_prefix "__long_gid_"
#endif

int access  (const char *__file_spec, int __mode);
int chmod   (const char *__file_spec, __mode_t __mode);

#if __USE_LONG_GID_T
#   pragma __extern_prefix __restore
#endif

int close   (int __file_desc);
int dup     (int __file_desc);
int dup2    (int __file_desc1, int __file_desc2);
int isapipe (int __file_desc);
int isatty  (int __file_desc);
__off_t lseek (int __file_desc, __off_t __offset, int __direction);


/*	 
**  The function open in DEC C V4.0 had a required mode_t parameter if in
**  strict ANSI mode.  This is not standard conforming, so it it here for
**  compatibility only.
*/	 
#if defined _DECC_V4_SOURCE && defined __HIDE_FORBIDDEN_NAMES
    int open (const char *__file_spec, int __flags, __mode_t __mode, ...);
#else
    int open (const char *__file_spec, int __flags, ...);
#endif


/*	 
**  DEC C V5.2 changed the prototypes to ISO POSIX-1 definitions in a way that
**  was binary upward compatible but not source upward compatibile.  The old
**  definitions are retained for compatibility with old source
*/	 
#ifndef _DECC_V4_SOURCE

#if __USE_LONG_GID_T
#   pragma __extern_prefix __save
#   pragma __extern_prefix "__long_gid_"
#endif

    int chown  (const char *__file_spec, __uid_t __owner, __gid_t __group);

#if __USE_LONG_GID_T
#   pragma __extern_prefix __restore
#endif

    __ssize_t read   (int __file_desc, void *__buffer, __size_t __nbytes);
    __ssize_t write  (int __file_desc, const void *__buffer, __size_t __nbytes);
#else
    int chown (const char *__file_spec, unsigned int __owner, unsigned int __group);
    int read  (int __file_desc, void *__buffer, int __nbytes);
    int write (int __file_desc, void *__buffer, int __nbytes);
#endif


/*	 
**  DEC C extensions which have additional parameters as a DEC C extension.
*/	 
#ifdef _POSIX_C_SOURCE
    int chdir (const char *__dir_spec);
    int creat (const char *__file_spec, __mode_t __mode);
#else
    int chdir (const char *__dir_spec, ...);
    int creat (const char *__file_spec, __mode_t __mode, ...);
#endif


/*
**  The following function is not available in C++.
*/
#ifndef __cplusplus
    int delete(const char *__file_spec);
#endif


/*
**  The following functions have interfaces of XXX, _XXX32, and _XXX64 due only
**  to the fact that the return argument is a pointer that is relative to one
**  of the arguments.
*/
#if __INITIAL_POINTER_SIZE == 32
#pragma __pointer_size 32
#endif

    char *getname (int __file_desc, char *__buffer, ...);
    char *mktemp  (char *__template);

#if __INITIAL_POINTER_SIZE && __CRTL_VER >= 70000000
#   pragma __pointer_size 32
    char *_getname32 (int, char *, ...);
    char *_mktemp32  (char *);
#   pragma __pointer_size 64
    char *_getname64 (int, char *, ...);
    char *_mktemp64  (char *);
#endif


/*
**  Restore the users pointer context
*/
#if __INITIAL_POINTER_SIZE
#   pragma __pointer_size __restore
#endif

#ifdef __cplusplus
    }
#endif

#pragma __standard
#endif  /* __UNIXIO_LOADED */