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freebsd/contrib/tcsh/tc.os.h
Mark Peek b2d5d167ed Import of tcsh-6.13.00
2004-07-11 02:17:56 +00:00

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/* $Header: /src/pub/tcsh/tc.os.h,v 3.90 2004/01/23 16:21:10 christos Exp $ */
/*
* tc.os.h: Shell os dependent defines
*/
/*-
* Copyright (c) 1980, 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _h_tc_os
#define _h_tc_os
#ifndef __STDC__
#ifndef WINNT_NATIVE
#define NEEDstrerror /* Too hard to find which systems have it */
#endif /* WINNT_NATIVE */
#endif
#ifdef notdef
/*
* for SVR4 and linux we used to fork pipelines backwards.
* This should not be needed any more.
* more info in sh.sem.c
*/
# define BACKPIPE
#endif /* notdef */
#ifdef __CYGWIN__
# undef NOFILE
# define NOFILE sysconf(_SC_OPEN_MAX)
# undef NEEDstrerror
#endif
#ifdef _VMS_POSIX
# ifndef NOFILE
# define NOFILE 64
# endif /* NOFILE */
# define nice(a) setprio((getpid()),a)
# undef NEEDstrerror /* won't get sensible error messages otherwise */
# define NEEDgethostname
# include <sys/time.h> /* for time stuff in tc.prompt.c */
# include <limits.h>
#endif /* atp vmsposix */
#if defined(DECOSF1) || defined(HPUXVERSION)
# include <sys/signal.h>
#endif /* DECOSF1 || HPUXVERSION */
#ifdef DECOSF1
# include <sys/ioctl.h>
#endif /* DECOSF1 */
#if defined(OPEN_MAX) && !defined(NOFILE)
# define NOFILE OPEN_MAX
#endif /* OPEN_MAX && !NOFILE */
#if defined(USR_NFDS) && !defined(NOFILE)
# define NOFILE USR_NFDS
#endif /* USR_NFDS && !NOFILE */
#ifndef NOFILE
# define NOFILE 256
#endif /* NOFILE */
#if defined(linux) || defined(__NetBSD__) || defined(__FreeBSD__) || SYSVREL >= 4 || defined(_MINIX_VMD)
# undef NEEDstrerror
#endif /* linux || __NetBSD__ || __FreeBSD__ || SYSVREL >= 4 || _MINIX_VMD */
#if !defined(pyr) && !defined(sinix)
/* Pyramid's cpp complains about the next line */
# if defined(BSD) && BSD >= 199306
# undef NEEDstrerror
# endif /* BSD && BSD >= 199306 */
#endif /* pyr */
#ifdef OREO
# include <sys/time.h>
# ifdef notdef
/* Don't include it, because it defines things we don't really have */
# include <sys/resource.h>
# endif /* notdef */
# ifdef POSIX
# include <sys/tty.h>
# include <termios.h>
# endif /* POSIX */
#endif /* OREO */
#ifndef NCARGS
# ifdef _SC_ARG_MAX
# define NCARGS sysconf(_SC_ARG_MAX)
# else /* !_SC_ARG_MAX */
# ifdef ARG_MAX
# define NCARGS ARG_MAX
# else /* !ARG_MAX */
# ifdef _MINIX
# define NCARGS 80
# else /* !_MINIX */
# define NCARGS 1024
# endif /* _MINIX */
# endif /* ARG_MAX */
# endif /* _SC_ARG_MAX */
#endif /* NCARGS */
#ifdef convex
# include <sys/dmon.h>
#endif /* convex */
#ifdef titan
extern int end;
#endif /* titan */
#ifdef hpux
# ifdef lint
/*
* Hpux defines struct ucred, in <sys/user.h>, but if I include that
* then I need to include the *world*
* [all this to pass lint cleanly!!!]
* so I define struct ucred here...
*/
struct ucred {
int foo;
};
# endif /* lint */
/*
* hpux 7.0 does not define it
*/
# ifndef CSUSP
# define CSUSP 032
# endif /* CSUSP */
# include <signal.h>
# if !defined(hp9000s500) && !(defined(SIGRTMAX) || defined(SIGRTMIN))
/*
* hpux < 7
*/
# include <sys/bsdtty.h>
# endif /* !hp9000s500 && !(SIGRTMAX || SIGRTMIN) */
# ifndef POSIX
# ifdef BSDJOBS
# define getpgrp(a) getpgrp2(a)
# define setpgrp(a, b) setpgrp2(a, b)
# endif /* BSDJOBS */
# endif /* POSIX */
# ifndef TIOCSTI
# include <sys/strtio.h>
# endif
#endif /* hpux */
/*
* ISC does not define CSUSP
*/
#ifdef ISC
# ifndef CSUSP
# define CSUSP 032
# endif /* CSUSP */
# if defined(POSIX) && !defined(TIOCGWINSZ)
/*
* ISC defines this only in termio.h. If we are using POSIX and include
* termios.h, then we define it ourselves so that window resizing works.
*/
# define TIOCGWINSZ (('T'<<8)|104)
# endif /* POSIX && !TIOCGWINSZ */
#endif /* ISC */
#ifdef ISC202
# undef TIOCGWINSZ
#endif /* ISC202 */
/*
* XXX: This will be changed soon to
* #if (SYSVREL > 0) && defined(TIOCGWINSZ)
* If that breaks on your machine, let me know.
*
* It would break on linux, where all this is
* defined in <termios.h>. Wrapper added.
*/
#if !defined(linux) && !defined(_VMS_POSIX)
# if defined(INTEL) || defined(u3b2) || defined (u3b5) || defined(ub15) || defined(u3b20d) || defined(ISC) || defined(SCO) || defined(tower32)
# ifdef TIOCGWINSZ
/*
* for struct winsiz
*/
# include <sys/stream.h>
# include <sys/ptem.h>
# endif /* TIOCGWINSZ */
# ifndef ODT
# define NEEDgethostname
# endif /* ODT */
# endif /* INTEL || u3b2 || u3b5 || ub15 || u3b20d || ISC || SCO || tower32 */
#endif /* !linux && !_VMS_POSIX */
#if defined(UNIXPC) || defined(COHERENT)
# define NEEDgethostname
#endif /* UNIXPC || COHERENT */
#ifdef IRIS4D
# include <sys/time.h>
# include <sys/resource.h>
# ifndef POSIX
/*
* BSDsetpgrp() and BSDgetpgrp() are BSD versions of setpgrp, etc.
*/
# define setpgrp BSDsetpgrp
# define getpgrp BSDgetpgrp
# endif /* POSIX */
#endif /* IRIS4D */
/*
* For some versions of system V software, specially ones that use the
* Wollongong Software TCP/IP, the FIOCLEX, FIONCLEX, FIONBIO calls
* might not work correctly for file descriptors [they work only for
* sockets]. So we try to use first the fcntl() and we only use the
* ioctl() form, only if we don't have the fcntl() one.
*
* From: scott@craycos.com (Scott Bolte)
*/
#ifndef WINNT_NATIVE
# ifdef F_SETFD
# define close_on_exec(fd, v) fcntl((fd), F_SETFD, v)
# else /* !F_SETFD */
# ifdef FIOCLEX
# define close_on_exec(fd, v) ioctl((fd), ((v) ? FIOCLEX : FIONCLEX), NULL)
# else /* !FIOCLEX */
# define close_on_exec(fd, v) /* Nothing */
# endif /* FIOCLEX */
# endif /* F_SETFD */
#else /* WINNT_NATIVE */
# define close_on_exec(fd, v) nt_close_on_exec((fd),(v))
#endif /* !WINNT_NATIVE */
/*
* Stat
*/
#ifdef ISC
/* these are not defined for _POSIX_SOURCE under ISC 2.2 */
# ifndef S_IFMT
# define S_IFMT 0170000 /* type of file */
# define S_IFDIR 0040000 /* directory */
# define S_IFCHR 0020000 /* character special */
# define S_IFBLK 0060000 /* block special */
# define S_IFREG 0100000 /* regular */
# define S_IFIFO 0010000 /* fifo */
# define S_IFNAM 0050000 /* special named file */
# ifndef ISC202
# define S_IFLNK 0120000 /* symbolic link */
# endif /* ISC202 */
# endif /* S_IFMT */
#endif /* ISC */
#if defined(uts) || defined(UTekV) || defined(sysV88)
/*
* The uts 2.1.2 macros (Amdahl) are busted!
* You should fix <sys/stat.h>, cause other programs will break too!
*
* From: creiman@ncsa.uiuc.edu (Charlie Reiman)
*/
/*
* The same applies to Motorola MPC (System V/88 R32V2, UTekV 3.2e)
* workstations, the stat macros are broken.
* Kaveh Ghazi (ghazi@caip.rutgers.edu)
*/
# undef S_ISDIR
# undef S_ISCHR
# undef S_ISBLK
# undef S_ISREG
# undef S_ISFIFO
# undef S_ISNAM
# undef S_ISLNK
# undef S_ISSOCK
#endif /* uts || UTekV || sysV88 */
#ifdef S_IFMT
# if !defined(S_ISDIR) && defined(S_IFDIR)
# define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR)
# endif /* ! S_ISDIR && S_IFDIR */
# if !defined(S_ISCHR) && defined(S_IFCHR)
# define S_ISCHR(a) (((a) & S_IFMT) == S_IFCHR)
# endif /* ! S_ISCHR && S_IFCHR */
# if !defined(S_ISBLK) && defined(S_IFBLK)
# define S_ISBLK(a) (((a) & S_IFMT) == S_IFBLK)
# endif /* ! S_ISBLK && S_IFBLK */
# if !defined(S_ISREG) && defined(S_IFREG)
# define S_ISREG(a) (((a) & S_IFMT) == S_IFREG)
# endif /* ! S_ISREG && S_IFREG */
# if !defined(S_ISFIFO) && defined(S_IFIFO)
# define S_ISFIFO(a) (((a) & S_IFMT) == S_IFIFO)
# endif /* ! S_ISFIFO && S_IFIFO */
# if !defined(S_ISNAM) && defined(S_IFNAM)
# define S_ISNAM(a) (((a) & S_IFMT) == S_IFNAM)
# endif /* ! S_ISNAM && S_IFNAM */
# if !defined(S_ISLNK) && defined(S_IFLNK)
# define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK)
# endif /* ! S_ISLNK && S_IFLNK */
# if !defined(S_ISSOCK) && defined(S_IFSOCK)
# define S_ISSOCK(a) (((a) & S_IFMT) == S_IFSOCK)
# endif /* ! S_ISSOCK && S_IFSOCK */
#endif /* S_IFMT */
#ifdef tower32
/* The header files lie; we really don't have symlinks */
# undef S_ISLNK
# undef S_IFLNK
#endif /* tower32 */
#ifndef S_IREAD
# define S_IREAD 0000400
#endif /* S_IREAD */
#ifndef S_IROTH
# define S_IROTH (S_IREAD >> 6)
#endif /* S_IROTH */
#ifndef S_IRGRP
# define S_IRGRP (S_IREAD >> 3)
#endif /* S_IRGRP */
#ifndef S_IRUSR
# define S_IRUSR S_IREAD
#endif /* S_IRUSR */
#ifndef S_IWRITE
# define S_IWRITE 0000200
#endif /* S_IWRITE */
#ifndef S_IWOTH
# define S_IWOTH (S_IWRITE >> 6)
#endif /* S_IWOTH */
#ifndef S_IWGRP
# define S_IWGRP (S_IWRITE >> 3)
#endif /* S_IWGRP */
#ifndef S_IWUSR
# define S_IWUSR S_IWRITE
#endif /* S_IWUSR */
#ifndef S_IEXEC
# define S_IEXEC 0000100
#endif /* S_IEXEC */
#ifndef S_IXOTH
# define S_IXOTH (S_IEXEC >> 6)
#endif /* S_IXOTH */
#ifndef S_IXGRP
# define S_IXGRP (S_IEXEC >> 3)
#endif /* S_IXGRP */
#ifndef S_IXUSR
# define S_IXUSR S_IEXEC
#endif /* S_IXUSR */
#ifndef S_ISUID
# define S_ISUID 0004000 /* setuid */
#endif /* S_ISUID */
#ifndef S_ISGID
# define S_ISGID 0002000 /* setgid */
#endif /* S_ISGID */
#ifndef S_ISVTX
# define S_ISVTX 0001000 /* sticky */
#endif /* S_ISVTX */
#ifndef S_ENFMT
# define S_ENFMT S_ISGID /* record locking enforcement flag */
#endif /* S_ENFMT */
/* the following macros are for POSIX conformance */
#ifndef S_IRWXU
# define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
#endif /* S_IRWXU */
#ifndef S_IRWXG
# define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
#endif /* S_IRWXG */
#ifndef S_IRWXO
# define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
#endif /* S_IRWXO */
/*
* Access()
*/
#ifndef F_OK
# define F_OK 0
#endif /* F_OK */
#ifndef X_OK
# define X_OK 1
#endif /* X_OK */
#ifndef W_OK
# define W_OK 2
#endif /* W_OK */
#ifndef R_OK
# define R_OK 4
#endif /* R_OK */
/*
* Open()
*/
#ifndef O_RDONLY
# define O_RDONLY 0
#endif /* O_RDONLY */
#ifndef O_WRONLY
# define O_WRONLY 1
#endif /* O_WRONLY */
#ifndef O_RDWR
# define O_RDWR 2
#endif /* O_RDWR */
/*
* Lseek()
*/
#ifndef L_SET
# ifdef SEEK_SET
# define L_SET SEEK_SET
# else /* !SEEK_SET */
# define L_SET 0
# endif /* SEEK_SET */
#endif /* L_SET */
#ifndef L_INCR
# ifdef SEEK_CUR
# define L_INCR SEEK_CUR
# else /* !SEEK_CUR */
# define L_INCR 1
# endif /* SEEK_CUR */
#endif /* L_INCR */
#ifndef L_XTND
# ifdef SEEK_END
# define L_XTND SEEK_END
# else /* !SEEK_END */
# define L_XTND 2
# endif /* SEEK_END */
#endif /* L_XTND */
#ifdef _SEQUENT_
# define NEEDgethostname
#endif /* _SEQUENT_ */
#if defined(BSD) && defined(POSIXJOBS) && !defined(BSD4_4) && !defined(__hp_osf)
# define setpgid(pid, pgrp) setpgrp(pid, pgrp)
#endif /* BSD && POSIXJOBS && && !BSD4_4 && !__hp_osf */
#if defined(BSDJOBS) && !(defined(POSIX) && defined(POSIXJOBS))
# if !defined(_AIX370) && !defined(_AIXPS2)
# define setpgid(pid, pgrp) setpgrp(pid, pgrp)
# endif /* !_AIX370 && !_AIXPS2 */
# define NEEDtcgetpgrp
#endif /* BSDJOBS && !(POSIX && POSIXJOBS) */
#ifdef RENO
/*
* RENO has this broken. It is fixed on 4.4BSD
*/
# define NEEDtcgetpgrp
#endif /* RENO */
#ifdef DGUX
# define setpgrp(a, b) setpgrp2(a, b)
# define getpgrp(a) getpgrp2(a)
#endif /* DGUX */
#ifdef SXA
# ifndef _BSDX_
/*
* Only needed in the system V environment.
*/
# define setrlimit bsd_setrlimit
# define getrlimit bsd_getrlimit
# endif /* _BSDX_ */
#endif /* SXA */
#if defined(_MINIX) || defined(__EMX__)
# define NEEDgethostname
# define NEEDnice
# define HAVENOLIMIT
/*
* Minix does not have these, so...
*/
# define getpgrp getpid
#endif /* _MINIX || __EMX__ */
#ifdef __EMX__
/* XXX: How can we get the tty name in emx? */
# define ttyname(fd) (isatty(fd) ? "/dev/tty" : NULL)
#endif /* __EMX__ */
#ifndef POSIX
# define mygetpgrp() getpgrp(0)
#else /* POSIX */
# if (defined(BSD) && !defined(BSD4_4)) || defined(SUNOS4) || defined(IRIS4D) || defined(DGUX) || defined(HPRT)
# define mygetpgrp() getpgrp(0)
# else /* !((BSD && !BSD4_4) || SUNOS4 || IRIS4D || DGUX || HPRT) */
# define mygetpgrp() getpgrp()
# endif /* (BSD && BSD4_4) || SUNOS4 || IRISD || DGUX || HPRT */
#endif /* POSIX */
#if !defined(SOLARIS2) && !defined(sinix) && !defined(BSD4_4) && !defined(WINNT_NATIVE)
# if (SYSVREL > 0 && !defined(OREO) && !defined(sgi) && !defined(linux) && !defined(sinix) && !defined(_AIX) &&!defined(_UWIN)) || defined(NeXT)
# define NEEDgetcwd
# endif /* (SYSVREL > 0 && !OREO && !sgi && !linux && !sinix && !_AIX && !_UWIN) || NeXT */
#endif
#ifndef S_IFLNK
# define lstat stat
#endif /* S_IFLNK */
#if defined(BSDTIMES) && !defined(_SEQUENT_)
typedef struct timeval timeval_t;
#endif /* BSDTIMES && ! _SEQUENT_ */
#ifdef NeXT
/*
* From Tony_Mason@transarc.com, override NeXT's malloc stuff.
*/
# define malloc tcsh_malloc
# define calloc tcsh_calloc
# define realloc tcsh_realloc
# define free tcsh_free
#endif /* NeXT */
#if !defined(BSD4_4) && !defined(__linux__) && !defined(__hpux) && \
!defined(sgi) && !defined(_AIX) && !defined(__CYGWIN__)
#ifndef NEEDgethostname
extern int gethostname __P((char *, int));
#endif /* NEEDgethostname */
#endif /* !BDS4_4 && !__linux__ && !__hpux && !sgi */
#if !defined(POSIX) || defined(SUNOS4) || defined(UTekV) || defined(sysV88)
extern time_t time();
extern char *getenv();
extern int atoi();
# ifndef __EMX__
extern char *ttyname();
# endif /* __EMX__ */
# if defined(SUNOS4)
# ifndef toupper
extern int toupper __P((int));
# endif /* toupper */
# ifndef tolower
extern int tolower __P((int));
# endif /* tolower */
extern caddr_t sbrk __P((int));
# if SYSVREL == 0 && !defined(__lucid)
extern int qsort();
# endif /* SYSVREL == 0 && !__lucid */
# else /* !SUNOS4 */
# ifndef WINNT_NATIVE
# ifndef hpux
# if __GNUC__ != 2
extern int abort();
# endif /* __GNUC__ != 2 */
# ifndef fps500
extern int qsort();
# endif /* !fps500 */
# else /* !hpux */
extern void abort();
extern void qsort();
# endif /* hpux */
# endif /* !WINNT_NATIVE */
# endif /* SUNOS4 */
#ifndef _CX_UX
extern void perror();
#endif
# ifdef BSDSIGS
# if defined(_AIX370) || defined(MACH) || defined(NeXT) || defined(_AIXPS2) || defined(ardent) || defined(SUNOS4) || defined(HPBSD) || defined(__MACHTEN__)
extern int sigvec();
extern int sigpause();
# else /* !(_AIX370 || MACH || NeXT || _AIXPS2 || ardent || SUNOS4 || HPBSD) */
# if (!defined(apollo) || !defined(__STDC__)) && !defined(__DGUX__) && !defined(fps500)
extern sigret_t sigvec();
#ifndef _CX_UX
extern void sigpause();
#endif /* _CX_UX */
# endif /* (!apollo || !__STDC__) && !__DGUX__ && !fps500 */
# endif /* _AIX370 || MACH || NeXT || _AIXPS2 || ardent || SUNOS4 || HPBSD */
extern sigmask_t sigblock();
extern sigmask_t sigsetmask();
# endif /* BSDSIGS */
# ifndef killpg
extern int killpg();
# endif /* killpg */
# ifndef lstat
extern int lstat();
# endif /* lstat */
# ifdef BSD
extern uid_t getuid(), geteuid();
extern gid_t getgid(), getegid();
# endif /* BSD */
# ifdef SYSMALLOC
extern memalign_t malloc();
extern memalign_t realloc();
extern memalign_t calloc();
extern void free();
# endif /* SYSMALLOC */
# ifdef BSDTIMES
extern int getrlimit();
extern int setrlimit();
extern int getrusage();
extern int gettimeofday();
# endif /* BSDTIMES */
# if defined(NLS) && !defined(NOSTRCOLL) && !defined(NeXT)
extern int strcoll();
# endif /* NLS && !NOSTRCOLL && !NeXT */
# ifdef BSDJOBS
# ifdef BSDTIMES
# ifdef __MACHTEN__
extern pid_t wait3();
# else
# ifndef HPBSD
extern int wait3();
# endif /* HPBSD */
# endif /* __MACHTEN__ */
# else /* !BSDTIMES */
# if !defined(POSIXJOBS) && !defined(_SEQUENT_)
extern int wait3();
# else /* POSIXJOBS || _SEQUENT_ */
extern int waitpid();
# endif /* POSIXJOBS || _SEQUENT_ */
# endif /* BSDTIMES */
# else /* !BSDJOBS */
# if SYSVREL < 3
extern int ourwait();
# else /* SYSVREL >= 3 */
extern int wait();
# endif /* SYSVREL < 3 */
# endif /* BSDJOBS */
# ifdef BSDNICE
extern int setpriority();
# else /* !BSDNICE */
extern int nice();
# endif /* BSDNICE */
# if (!defined(fps500) && !defined(apollo) && !defined(__lucid) && !defined(HPBSD) && !defined(DECOSF1))
extern void setpwent();
extern void endpwent();
# endif /* !fps500 && !apollo && !__lucid && !HPBSD && !DECOSF1 */
# ifndef __STDC__
extern struct passwd *getpwuid(), *getpwnam(), *getpwent();
# ifdef PW_SHADOW
extern struct spwd *getspnam(), *getspent();
# endif /* PW_SHADOW */
# ifdef PW_AUTH
extern struct authorization *getauthuid();
# endif /* PW_AUTH */
# endif /* __STDC__ */
# ifndef getcwd
extern char *getcwd();
# endif /* getcwd */
#else /* POSIX || !SUNOS4 || !UTekV || !sysV88 */
# if (defined(SUNOS4) && !defined(__GNUC__)) || defined(_IBMR2) || defined(_IBMESA)
extern char *getvwd();
# endif /* (SUNOS4 && ! __GNUC__) || _IBMR2 || _IBMESA */
# ifdef SCO
extern char *ttyname();
# endif /* SCO */
# ifdef __clipper__
extern char *ttyname();
# endif /* __clipper__ */
#endif /* !POSIX || SUNOS4 || UTekV || sysV88 */
#if defined(SUNOS4) && __GNUC__ == 2
/*
* Somehow these are missing
*/
extern int ioctl __P((int, int, ...));
extern int readlink __P((const char *, char *, size_t));
extern void setgrent __P((void));
extern void endgrent __P((void));
# ifdef REMOTEHOST
# ifndef _SOCKLEN_T /* Avoid Solaris 2.7 bogosity. */
struct sockaddr;
extern int getpeername __P((int, struct sockaddr *, int *));
# endif /* _SOCKLEN_T */
# endif /* REMOTEHOST */
#endif /* SUNOS4 && __GNUC__ == 2 */
#if (defined(BSD) && !defined(BSD4_4)) || defined(SUNOS4)
# if defined(__alpha) && defined(__osf__) && DECOSF1 < 200
extern void bcopy __P((const void *, void *, size_t));
# define memmove(a, b, c) (bcopy((char *) (b), (char *) (a), (int) (c)), a)
# endif /* __alpha && __osf__ && DECOSF1 < 200 */
#endif /* (BSD && !BSD4_4) || SUNOS4 */
#if !defined(hpux) && !defined(COHERENT) && ((SYSVREL < 4) || defined(_SEQUENT_)) && !defined(BSD4_4) && !defined(memmove)
# define NEEDmemmove
#endif /* !hpux && !COHERENT && (SYSVREL < 4 || _SEQUENT_) && !BSD4_4 && !memmove */
#if defined(UTek) || defined(pyr)
# define NEEDmemset
#else /* !UTek && !pyr */
# ifdef SUNOS4
# include <memory.h> /* memset should be declared in <string.h> but isn't */
# endif /* SUNOS4 */
#endif /* UTek || pyr */
#if SYSVREL == 4
# ifdef REMOTEHOST
/* Irix6 defines getpeername(int, void *, int *) which conflicts with
the definition below. */
# if !defined(__sgi) && !defined(_OSD_POSIX) && !defined(__MVS__)
# ifndef _SOCKLEN_T /* Avoid Solaris 2.7 bogosity. */
struct sockaddr;
extern int getpeername __P((int, struct sockaddr *, int *));
# endif /* _SOCKLEN_T */
# endif /* !__sgi && !_OSD_POSIX && !__MVS__ */
# endif /* REMOTEHOST */
# ifndef BSDTIMES
extern int getrlimit __P((int, struct rlimit *));
extern int setrlimit __P((int, const struct rlimit *));
# endif /* !BSDTIMES */
# if !defined(IRIS4D) && !defined(SOLARIS2)
extern int wait3(); /* I think some bizarre systems still need this */
# endif /* !IRIS4D && !SOLARIS2 */
# if defined(SOLARIS2)
# undef NEEDstrerror
extern char *strerror __P((int));
# endif /* SOLARIS2 */
#endif /* SYSVREL == 4 */
#if defined(__alpha) && defined(__osf__) && DECOSF1 < 200
/* These are ok for 1.3, but conflict with the header files for 2.0 */
extern int gethostname __P((char *, int));
extern char *sbrk __P((ssize_t));
extern int ioctl __P((int, unsigned long, char *));
extern pid_t vfork __P((void));
extern int killpg __P((pid_t, int));
#endif /* __osf__ && __alpha && DECOSF1 < 200 */
#endif /* _h_tc_os */
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