531 lines
12 KiB
C
531 lines
12 KiB
C
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/* Copyright (c) 1993-2002
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* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
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* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
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* Copyright (c) 1987 Oliver Laumann
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (see the file COPYING); if not, write to the
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* Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*
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****************************************************************
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* $Id: os.h,v 1.10 1994/05/31 12:32:22 mlschroe Exp $ FAU
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <sys/param.h>
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/* In strict ANSI mode, HP-UX machines define __hpux but not hpux */
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#if defined(__hpux) && !defined(hpux)
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# define hpux
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#endif
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#if defined(__bsdi__) || defined(__386BSD__) || defined(_CX_UX) || defined(hpux) || defined(_IBMR2) || defined(linux)
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# include <signal.h>
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#endif /* __bsdi__ || __386BSD__ || _CX_UX || hpux || _IBMR2 || linux */
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#ifdef ISC
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# ifdef ENAMETOOLONG
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# undef ENAMETOOLONG
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# endif
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# ifdef ENOTEMPTY
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# undef ENOTEMPTY
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# endif
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# include <sys/bsdtypes.h>
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# include <net/errno.h>
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#endif
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#ifdef sun
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# define getpgrp __getpgrp
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# define exit __exit
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#endif
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#ifdef POSIX
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# include <unistd.h>
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# if defined(__STDC__)
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# include <stdlib.h>
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# endif /* __STDC__ */
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#endif /* POSIX */
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#ifdef sun
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# undef getpgrp
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# undef exit
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#endif /* sun */
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#ifndef linux /* all done in <errno.h> */
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extern int errno;
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#endif /* linux */
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#ifndef HAVE_STRERROR
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/* No macros, please */
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#undef strerror
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#endif
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#if !defined(SYSV) && !defined(linux)
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# ifdef NEWSOS
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# define strlen ___strlen___
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# include <strings.h>
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# undef strlen
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# else /* NEWSOS */
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# include <strings.h>
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# endif /* NEWSOS */
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#else /* SYSV */
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# if defined(SVR4) || defined(NEWSOS)
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# define strlen ___strlen___
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# include <string.h>
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# undef strlen
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# if !defined(NEWSOS) && !defined(__hpux)
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extern size_t strlen(const char *);
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# endif
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# else /* SVR4 */
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# include <string.h>
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# endif /* SVR4 */
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#endif /* SYSV */
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#ifdef USEVARARGS
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# if defined(__STDC__)
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# include <stdarg.h>
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# define VA_LIST(var) va_list var;
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# define VA_DOTS ...
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# define VA_DECL
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# define VA_START(ap, fmt) va_start(ap, fmt)
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# define VA_ARGS(ap) ap
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# define VA_END(ap) va_end(ap)
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# else
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# include <varargs.h>
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# define VA_LIST(var) va_list var;
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# define VA_DOTS va_alist
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# define VA_DECL va_dcl
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# define VA_START(ap, fmt) va_start(ap)
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# define VA_ARGS(ap) ap
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# define VA_END(ap) va_end(ap)
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# endif
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#else
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# define VA_LIST(var)
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# define VA_DOTS p1, p2, p3, p4, p5, p6
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# define VA_DECL unsigned long VA_DOTS;
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# define VA_START(ap, fmt)
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# define VA_ARGS(ap) VA_DOTS
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# define VA_END(ap)
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# undef vsnprintf
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# define vsnprintf xsnprintf
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#endif
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#if !defined(sun) && !defined(B43) && !defined(ISC) && !defined(pyr) && !defined(_CX_UX)
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# include <time.h>
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#endif
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#include <sys/time.h>
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#ifdef M_UNIX /* SCO */
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# include <sys/stream.h>
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# include <sys/ptem.h>
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# define ftruncate(fd, s) chsize(fd, s)
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#endif
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#ifdef SYSV
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# define index strchr
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# define rindex strrchr
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# define bzero(poi,len) memset(poi,0,len)
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# define bcmp memcmp
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# define killpg(pgrp,sig) kill( -(pgrp), sig)
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#endif
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#ifndef HAVE_GETCWD
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# define getcwd(b,l) getwd(b)
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#endif
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#ifndef USEBCOPY
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# ifdef USEMEMMOVE
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# define bcopy(s,d,len) memmove(d,s,len)
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# else
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# ifdef USEMEMCPY
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# define bcopy(s,d,len) memcpy(d,s,len)
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# else
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# define NEED_OWN_BCOPY
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# define bcopy xbcopy
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# endif
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# endif
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#endif
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#ifdef hpux
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# define setreuid(ruid, euid) setresuid(ruid, euid, -1)
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# define setregid(rgid, egid) setresgid(rgid, egid, -1)
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#endif
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#if defined(HAVE_SETEUID) || defined(HAVE_SETREUID)
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# define USE_SETEUID
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#endif
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#if !defined(HAVE__EXIT) && !defined(_exit)
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#define _exit(x) exit(x)
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#endif
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#ifndef HAVE_UTIMES
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# define utimes utime
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#endif
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#ifdef BUILTIN_TELNET
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# include <netinet/in.h>
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# include <arpa/inet.h>
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#endif
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#if defined(USE_LOCALE) && (!defined(HAVE_SETLOCALE) || !defined(HAVE_STRFTIME))
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# undef USE_LOCALE
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#endif
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/*****************************************************************
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* terminal handling
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*/
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#ifdef POSIX
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# include <termios.h>
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# ifdef hpux
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# include <bsdtty.h>
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# endif /* hpux */
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# ifdef NCCS
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# define MAXCC NCCS
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# else
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# define MAXCC 256
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# endif
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#else /* POSIX */
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# ifdef TERMIO
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# include <termio.h>
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# ifdef NCC
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# define MAXCC NCC
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# else
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# define MAXCC 256
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# endif
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# ifdef CYTERMIO
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# include <cytermio.h>
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# endif
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# else /* TERMIO */
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# include <sgtty.h>
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# endif /* TERMIO */
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#endif /* POSIX */
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#ifndef VDISABLE
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# ifdef _POSIX_VDISABLE
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# define VDISABLE _POSIX_VDISABLE
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# else
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# define VDISABLE 0377
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# endif /* _POSIX_VDISABLE */
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#endif /* !VDISABLE */
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/* on sgi, regardless of the stream head's read mode (RNORM/RMSGN/RMSGD)
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* TIOCPKT mode causes data loss if our buffer is too small (IOSIZE)
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* to hold the whole packet at first read().
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* (Marc Boucher)
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*
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* matthew green:
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* TIOCPKT is broken on dgux 5.4.1 generic AViiON mc88100
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*
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* Joe Traister: On AIX4, programs like irc won't work if screen
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* uses TIOCPKT (select fails to return on pty read).
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*/
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#if defined(sgi) || defined(DGUX) || defined(_IBMR2)
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# undef TIOCPKT
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#endif
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/* linux ncurses is broken, we have to use our own tputs */
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#if defined(linux) && defined(TERMINFO)
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# define tputs xtputs
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#endif
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/* Alexandre Oliva: SVR4 style ptys don't work with osf */
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#ifdef __osf__
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# undef HAVE_SVR4_PTYS
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#endif
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/*****************************************************************
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* utmp handling
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*/
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#ifdef GETUTENT
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typedef char *slot_t;
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#else
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typedef int slot_t;
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#endif
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#if defined(UTMPOK) || defined(BUGGYGETLOGIN)
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# if defined(SVR4) && !defined(DGUX) && !defined(__hpux) && !defined(linux)
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# include <utmpx.h>
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# define UTMPFILE UTMPX_FILE
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# define utmp utmpx
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# define getutent getutxent
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# define getutid getutxid
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# define getutline getutxline
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# define pututline pututxline
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# define setutent setutxent
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# define endutent endutxent
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# define ut_time ut_xtime
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# else /* SVR4 */
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# include <utmp.h>
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# endif /* SVR4 */
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# ifdef apollo
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/*
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* We don't have GETUTENT, so we dig into utmp ourselves.
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* But we save the permanent filedescriptor and
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* open utmp just when we need to.
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* This code supports an unsorted utmp. jw.
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*/
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# define UTNOKEEP
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# endif /* apollo */
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# ifndef UTMPFILE
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# ifdef UTMP_FILE
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# define UTMPFILE UTMP_FILE
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# else
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# ifdef _PATH_UTMP
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# define UTMPFILE _PATH_UTMP
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# else
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# define UTMPFILE "/etc/utmp"
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# endif /* _PATH_UTMP */
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# endif
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# endif
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#endif /* UTMPOK || BUGGYGETLOGIN */
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#if !defined(UTMPOK) && defined(USRLIMIT)
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# undef USRLIMIT
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#endif
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#ifdef LOGOUTOK
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# ifndef LOGINDEFAULT
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# define LOGINDEFAULT 0
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# endif
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#else
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# ifdef LOGINDEFAULT
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# undef LOGINDEFAULT
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# endif
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# define LOGINDEFAULT 1
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#endif
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/*****************************************************************
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* file stuff
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*/
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#ifndef F_OK
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#define F_OK 0
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#endif
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#ifndef X_OK
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#define X_OK 1
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#endif
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#ifndef W_OK
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#define W_OK 2
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#endif
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#ifndef R_OK
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#define R_OK 4
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#endif
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#ifndef S_IFIFO
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#define S_IFIFO 0010000
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#endif
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#ifndef S_IREAD
|
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#define S_IREAD 0000400
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|
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#endif
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#ifndef S_IWRITE
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#define S_IWRITE 0000200
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|
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#endif
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#ifndef S_IEXEC
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#define S_IEXEC 0000100
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#endif
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|
||
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#if defined(S_IFIFO) && defined(S_IFMT) && !defined(S_ISFIFO)
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#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
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#endif
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#if defined(S_IFSOCK) && defined(S_IFMT) && !defined(S_ISSOCK)
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#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
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#endif
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#if defined(S_IFCHR) && defined(S_IFMT) && !defined(S_ISCHR)
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#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
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#endif
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||
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#if defined(S_IFDIR) && defined(S_IFMT) && !defined(S_ISDIR)
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#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
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#endif
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||
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#if defined(S_IFLNK) && defined(S_IFMT) && !defined(S_ISLNK)
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#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
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#endif
|
||
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|
||
|
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/*
|
||
|
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* SunOS 4.1.3: `man 2V open' has only one line that mentions O_NOBLOCK:
|
||
|
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*
|
||
|
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* O_NONBLOCK Same as O_NDELAY above.
|
||
|
|
*
|
||
|
|
* on the very same SunOS 4.1.3, I traced the open system call and found
|
||
|
|
* that an open("/dev/ttyy08", O_RDWR|O_NONBLOCK|O_NOCTTY) was blocked,
|
||
|
|
* whereas open("/dev/ttyy08", O_RDWR|O_NDELAY |O_NOCTTY) went through.
|
||
|
|
*
|
||
|
|
* For this simple reason I now favour O_NDELAY. jw. 4.5.95
|
||
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*/
|
||
|
|
#if defined(sun) && !defined(SVR4)
|
||
|
|
# undef O_NONBLOCK
|
||
|
|
#endif
|
||
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|
||
|
|
#if !defined(O_NONBLOCK) && defined(O_NDELAY)
|
||
|
|
# define O_NONBLOCK O_NDELAY
|
||
|
|
#endif
|
||
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|
||
|
|
#if !defined(FNBLOCK) && defined(FNONBLOCK)
|
||
|
|
# define FNBLOCK FNONBLOCK
|
||
|
|
#endif
|
||
|
|
#if !defined(FNBLOCK) && defined(FNDELAY)
|
||
|
|
# define FNBLOCK FNDELAY
|
||
|
|
#endif
|
||
|
|
#if !defined(FNBLOCK) && defined(O_NONBLOCK)
|
||
|
|
# define FNBLOCK O_NONBLOCK
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef POSIX
|
||
|
|
#undef mkfifo
|
||
|
|
#define mkfifo(n,m) mknod(n,S_IFIFO|(m),0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !defined(HAVE_LSTAT) && !defined(lstat)
|
||
|
|
# define lstat stat
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*****************************************************************
|
||
|
|
* signal handling
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef SIGVOID
|
||
|
|
# define SIGRETURN
|
||
|
|
# define sigret_t void
|
||
|
|
#else
|
||
|
|
# define SIGRETURN return 0;
|
||
|
|
# define sigret_t int
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Geeeee, reverse it? */
|
||
|
|
#if defined(SVR4) || (defined(SYSV) && defined(ISC)) || defined(_AIX) || defined(linux) || defined(ultrix) || defined(__386BSD__) || defined(__bsdi__) || defined(POSIX) || defined(NeXT)
|
||
|
|
# define SIGHASARG
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef SIGHASARG
|
||
|
|
# define SIGPROTOARG (int)
|
||
|
|
# define SIGDEFARG (sigsig) int sigsig;
|
||
|
|
# define SIGARG 0
|
||
|
|
#else
|
||
|
|
# define SIGPROTOARG (void)
|
||
|
|
# define SIGDEFARG ()
|
||
|
|
# define SIGARG
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef SIGCHLD
|
||
|
|
#define SIGCHLD SIGCLD
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(POSIX) || defined(hpux)
|
||
|
|
# define signal xsignal
|
||
|
|
#else
|
||
|
|
# ifdef USESIGSET
|
||
|
|
# define signal sigset
|
||
|
|
# endif /* USESIGSET */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* used in screen.c and attacher.c */
|
||
|
|
#ifndef NSIG /* kbeal needs these w/o SYSV */
|
||
|
|
# define NSIG 32
|
||
|
|
#endif /* !NSIG */
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************
|
||
|
|
* Wait stuff
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if (!defined(sysV68) && !defined(M_XENIX)) || defined(NeXT) || defined(M_UNIX)
|
||
|
|
# include <sys/wait.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef WTERMSIG
|
||
|
|
# ifndef BSDWAIT /* if wait is NOT a union: */
|
||
|
|
# define WTERMSIG(status) (status & 0177)
|
||
|
|
# else
|
||
|
|
# define WTERMSIG(status) status.w_T.w_Termsig
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef WSTOPSIG
|
||
|
|
# ifndef BSDWAIT /* if wait is NOT a union: */
|
||
|
|
# define WSTOPSIG(status) ((status >> 8) & 0377)
|
||
|
|
# else
|
||
|
|
# define WSTOPSIG(status) status.w_S.w_Stopsig
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* NET-2 uses WCOREDUMP */
|
||
|
|
#if defined(WCOREDUMP) && !defined(WIFCORESIG)
|
||
|
|
# define WIFCORESIG(status) WCOREDUMP(status)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef WIFCORESIG
|
||
|
|
# ifndef BSDWAIT /* if wait is NOT a union: */
|
||
|
|
# define WIFCORESIG(status) (status & 0200)
|
||
|
|
# else
|
||
|
|
# define WIFCORESIG(status) status.w_T.w_Coredump
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef WEXITSTATUS
|
||
|
|
# ifndef BSDWAIT /* if wait is NOT a union: */
|
||
|
|
# define WEXITSTATUS(status) ((status >> 8) & 0377)
|
||
|
|
# else
|
||
|
|
# define WEXITSTATUS(status) status.w_T.w_Retcode
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************
|
||
|
|
* select stuff
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined(M_XENIX) || defined(M_UNIX) || defined(_SEQUENT_)
|
||
|
|
#include <sys/select.h> /* for timeval + FD... */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* SunOS 3.5 - Tom Schmidt - Micron Semiconductor, Inc - 27-Jul-93
|
||
|
|
* tschmidt@vax.micron.com
|
||
|
|
*/
|
||
|
|
#ifndef FD_SET
|
||
|
|
# ifndef SUNOS3
|
||
|
|
typedef struct fd_set { int fds_bits[1]; } fd_set;
|
||
|
|
# endif
|
||
|
|
# define FD_ZERO(fd) ((fd)->fds_bits[0] = 0)
|
||
|
|
# define FD_SET(b, fd) ((fd)->fds_bits[0] |= 1 << (b))
|
||
|
|
# define FD_ISSET(b, fd) ((fd)->fds_bits[0] & 1 << (b))
|
||
|
|
# define FD_SETSIZE 32
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************
|
||
|
|
* user defineable stuff
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef TERMCAP_BUFSIZE
|
||
|
|
# define TERMCAP_BUFSIZE 2048
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef MAXPATHLEN
|
||
|
|
# define MAXPATHLEN 1024
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* you may try to vary this value. Use low values if your (VMS) system
|
||
|
|
* tends to choke when pasting. Use high values if you want to test
|
||
|
|
* how many characters your pty's can buffer.
|
||
|
|
*/
|
||
|
|
#define IOSIZE 4096
|
||
|
|
|