dos_compilers/Borland Turbo C v1/IO.H
2024-07-01 13:08:21 -07:00

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/* io.h
Definitions for low level I/O functions.
Copyright (c) Borland International 1987
All Rights Reserved.
*/
#if __STDC__
#define _Cdecl
#else
#define _Cdecl cdecl
#endif
#ifndef _IO_H
#define _IO_H 1
#define HANDLE_MAX 20U
extern unsigned int _Cdecl _openfd[];
struct ftime {
unsigned ft_tsec : 5; /* Two second interval */
unsigned ft_min : 6; /* Minutes */
unsigned ft_hour : 5; /* Hours */
unsigned ft_day : 5; /* Days */
unsigned ft_month : 4; /* Months */
unsigned ft_year : 7; /* Year */
};
#define SEEK_CUR 1
#define SEEK_END 2
#define SEEK_SET 0
int _Cdecl access (char *filename, int amode);
int _Cdecl chmod (char *filename, int amode);
int _Cdecl close (int handle);
int _Cdecl creat (char *path, int amode);
int _Cdecl dup (int handle);
int _Cdecl dup2 (int oldhandle, int newhandle);
int _Cdecl eof (int handle);
long _Cdecl filelength (int handle);
int _Cdecl getftime (int handle, struct ftime *ftimep);
int _Cdecl ioctl (int handle, char func, ...);
/* optional 3rd and 4th args are: void * argdx, int argcx */
int _Cdecl isatty (int handle);
int _Cdecl lock (int handle, long offset, long length);
long _Cdecl lseek (int handle, long offset, unsigned char kind);
int _Cdecl open (char *path, unsigned access,... /*unsigned mode*/);
int _Cdecl read (int handle, char *buf, unsigned int len);
int _Cdecl setmode (int handle, int amode);
int _Cdecl setftime (int handle, struct ftime *ftimep);
long _Cdecl tell (int handle);
unsigned _Cdecl umask (unsigned cmask);
int _Cdecl unlock (int handle, long offset, long length);
int _Cdecl write (int handle, char *buf, unsigned int len);
/* Low level routines close to DOS.
*/
int _Cdecl _chmod (char *pathname, int func, ... /* int attr */);
int _Cdecl _close (int handle);
int _Cdecl _creat (char *path, int attribute);
int _Cdecl creattemp (char *path, int amode); /* DOS 3.0 or later */
int _Cdecl creatnew (char *pathP, int mode); /* DOS 3.0 or later */
int _Cdecl _open (char *filename, unsigned oflags);
int _Cdecl _read (int handle, void *buf, int len);
int _Cdecl _write (int handle, void *buf, int len);
/* macros for compatibility with earlier versions & other compilers.
*/
#define sopen(path,access,shflag,mode) open (path, (access) | (shflag), mode)
#endif /* _IO_H */