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UNISTD.H
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C/C++ Source or Header
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1992-12-19
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6KB
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167 lines
//
// **************************************************************
// JdeBP C++ Library Routines General Public Licence v1.00
// Copyright (c) 1991,1992 Jonathan de Boyne Pollard
// **************************************************************
//
// STANDARD SYSTEM CALL INTERFACE (POSIX)
//
#if !defined(___STDDEF_H_INCLUDED)
#include <_stddef.h>
#endif
#if !defined(__UNISTD_H_INCLUDED)
#define _POSIX_VERSION 199009L /* We conform to revised standard if we can */
#undef _POSIX_JOB_CONTROL /* On a single-tasking OS? You jest. */
#undef _POSIX_SAVED_IDS /* Not even under Netware */
#define _POSIX_CHOWN_RESTRICTED -1 /* Always restricted */
#undef _POSIX_NO_TRUNC /* Yes on Netware, no on MS-DOS */
#define _POSIX_VDISABLE -1 /* No tty driver on MS-DOS */
#define _SC_ARG_MAX 1
#define _SC_CHILD_MAX 2
#define _SC_CLK_TCK 3
#define _SC_NGROUPS_MAX 4
#define _SC_OPEN_MAX 5
#define _SC_JOB_CONTROL 6
#define _SC_SAVED_IDS 7
#define _SC_VERSION 8
#define _PC_LINK_MAX 9
#define _PC_MAX_CANON 10
#define _PC_MAX_INPUT 11
#define _PC_NAME_MAX 12
#define _PC_PATH_MAX 13
#define _PC_PIPE_BUF 14
#define _PC_CHOWN_RESTRICTED 15
#define _PC_NO_TRUNC 16
#define _PC_VDISABLE 17
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
#if _MSDOS_SOURCE > 0
#define STDAUX_FILENO 3
#define STDPRN_FILENO 4
#endif
#if _MSDOS_SOURCE > 0
#define P_WAIT 0
#define P_NOWAIT 1
#define P_OVERLAY 2
#endif
extern "C" {
// NOTE. The original POSIX.1 draft uses int and unsigned int instead of
// ssize_t and size_t in some calls. Because Borland C++ uses strong typing,
// we stick to the second draft declaration rather than mucking about with
// #if's.
void _CDECL _exit (int);
int _CDECL access (const char *, int);
unsigned int _CDECL alarm (unsigned int);
int _CDECL chdir (const char *);
int _CDECL chown (const char *, _Gid_t, _Gid_t);
int _CDECL close (int);
char * _CDECL ctermid (char *);
int _CDECL dup (int);
int _CDECL dup2 (int, int);
int _CDECL execl (const char *, const char *, ...);
int _CDECL execle (const char *, const char *, ...);
int _CDECL execlp (const char *, const char *, ...);
int _CDECL execlpe (const char *, const char *, ...);
int _CDECL execv (const char *, const char * const *);
int _CDECL execve (const char *, const char * const *, const char * const *);
int _CDECL execvp (const char *, const char * const *);
int _CDECL execvpe (const char *, const char * const *, const char * const *);
_Pid_t _CDECL fork (void);
long _CDECL fpathconf (int, int);
char * _CDECL getcwd (char *, _Size_t);
_Gid_t _CDECL getegid (void);
_Uid_t _CDECL geteuid (void);
_Gid_t _CDECL getgid (void);
int _CDECL getgroups (int, _Gid_t *);
char * _CDECL getlogin (void);
_Pid_t _CDECL getpgrp (void);
_Pid_t _CDECL getpid (void);
_Pid_t _CDECL getppid (void);
_Uid_t _CDECL getuid (void);
int _CDECL isatty (int);
int _CDECL link (const char *, const char *);
_Off_t _CDECL lseek (int, _Off_t, int);
long _CDECL pathconf (const char *, int);
// pause
int _CDECL pipe (int [2]);
_Ssize_t _CDECL read (int, void *, _Size_t);
int _CDECL rmdir (const char *);
int _CDECL setgid (_Gid_t) ; // POSIX.1 ?
int _CDECL setpgid (_Pid_t, _Pid_t) ; // POSIX.1 ?
_Pid_t _CDECL setsid (void);
int _CDECL seteuid (_Uid_t);
int _CDECL setegid (_Uid_t); // POSIX.1 ?
unsigned int _CDECL sleep (unsigned int);
long _CDECL sysconf (int);
char * _CDECL ttyname (int fd);
int _CDECL unlink (const char *);
_Ssize_t _CDECL write (int, const void *, _Size_t);
// This was in the original POSIX.1 standard, but removed in the 1990
// revision. There is no feature test macro for the 1990 revision.
#if _POSIX1_SOURCE == 1
char * _CDECL cuserid (char *);
#endif
// These are only tentatively declared here, pending the second draft of
// POSIX.1 standard.
#if _POSIX1_SOURCE > 1
int _CDECL fchown (int, _Uid_t, _Gid_t);
int _CDECL ftruncate (int, _Off_t);
#endif
#if _POSIX2_SOURCE > 0
int _CDECL fnmatch (const char *, const char *, int);
int _CDECL getopt (int, const char *[], const char *);
#endif
#if _MSDOS_SOURCE > 0
int _CDECL chsize (int, _Off_t);
int _CDECL eof (int);
_Off_t _CDECL filelength (int);
int _CDECL locking (int, int, _Off_t);
char * _CDECL mktemp (char *);
int _CDECL setmode (int, _Mode_t);
_Off_t _CDECL tell (int);
int _CDECL spawnl (int, const char *, const char *, ...);
int _CDECL spawnle (int, const char *, const char *, ...);
int _CDECL spawnlp (int, const char *, const char *, ...);
int _CDECL spawnlpe (int, const char *, const char *, ...);
int _CDECL spawnv (int, const char *, const char * const *);
int _CDECL spawnve (int, const char *, const char * const *, const char * const *);
int _CDECL spawnvp (int, const char *, const char * const *);
int _CDECL spawnvpe (int, const char *, const char * const *, const char * const *);
#endif
#if _POSIX2_SOURCE > 0
extern _CDECL char * optarg;
extern _CDECL int optind, opterr, optopt;
#endif
long _CDECL _pathconf (int);
}
#define ttyname(fd) _NULL /* Can't use NULL in this header */
#if _MSDOS_SOURCE > 0 && _POSIX1_SOURCE > 1
#define chsize(fd,sz) ftruncate(fd,sz)
#endif
#define __UNISTD_H_INCLUDED
#endif