5836a818ec
This reverts commitb558ff043d
. This reverts commit4a11f20659
. The initial import commit failed to retain local changes made to readline's configure.in (and the commit message erroneously stated that there were no local changes that needed to be reapplied). Also the import caused a couple of build errors and a scattering of testsuite regressions throughout many arches. It's probably better to start over with this import, hopefully more carefully next time.
529 lines
12 KiB
C
529 lines
12 KiB
C
/* 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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* $Id$ 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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#if defined (POSIX) || defined (__FreeBSD__)
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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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#endif
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#ifndef S_IWRITE
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#define S_IWRITE 0000200
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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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#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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#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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#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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* 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.
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*
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* on the very same SunOS 4.1.3, I traced the open system call and found
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* that an open("/dev/ttyy08", O_RDWR|O_NONBLOCK|O_NOCTTY) was blocked,
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* whereas open("/dev/ttyy08", O_RDWR|O_NDELAY |O_NOCTTY) went through.
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*
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* For this simple reason I now favour O_NDELAY. jw. 4.5.95
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*/
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#if defined(sun) && !defined(SVR4)
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# undef O_NONBLOCK
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#endif
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#if !defined(O_NONBLOCK) && defined(O_NDELAY)
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# define O_NONBLOCK O_NDELAY
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#endif
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#if !defined(FNBLOCK) && defined(FNONBLOCK)
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# define FNBLOCK FNONBLOCK
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#endif
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#if !defined(FNBLOCK) && defined(FNDELAY)
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# define FNBLOCK FNDELAY
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#endif
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#if !defined(FNBLOCK) && defined(O_NONBLOCK)
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# define FNBLOCK O_NONBLOCK
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#endif
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#ifndef POSIX
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#undef mkfifo
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#define mkfifo(n,m) mknod(n,S_IFIFO|(m),0)
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#endif
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#if !defined(HAVE_LSTAT) && !defined(lstat)
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# define lstat stat
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#endif
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/*****************************************************************
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* signal handling
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*/
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#ifdef SIGVOID
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# define SIGRETURN
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# define sigret_t void
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#else
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# define SIGRETURN return 0;
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# define sigret_t int
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#endif
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/* Geeeee, reverse it? */
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#if defined(SVR4) || (defined(SYSV) && defined(ISC)) || defined(_AIX) || defined(linux) || defined(ultrix) || defined(__386BSD__) || defined(__bsdi__) || defined(POSIX) || defined(NeXT)
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# define SIGHASARG
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#endif
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#ifdef SIGHASARG
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# define SIGPROTOARG (int)
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# define SIGDEFARG (sigsig) int sigsig;
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# define SIGARG 0
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#else
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# define SIGPROTOARG (void)
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# define SIGDEFARG ()
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# define SIGARG
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#endif
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#ifndef SIGCHLD
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#define SIGCHLD SIGCLD
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#endif
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#if defined(POSIX) || defined(hpux)
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# define signal xsignal
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#else
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# ifdef USESIGSET
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# define signal sigset
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# endif /* USESIGSET */
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#endif
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/* used in screen.c and attacher.c */
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#ifndef NSIG /* kbeal needs these w/o SYSV */
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# define NSIG 32
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#endif /* !NSIG */
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/*****************************************************************
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* Wait stuff
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*/
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#if (!defined(sysV68) && !defined(M_XENIX)) || defined(NeXT) || defined(M_UNIX)
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# include <sys/wait.h>
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#endif
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#ifndef WTERMSIG
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# ifndef BSDWAIT /* if wait is NOT a union: */
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# define WTERMSIG(status) (status & 0177)
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# else
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# define WTERMSIG(status) status.w_T.w_Termsig
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# endif
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#endif
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#ifndef WSTOPSIG
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# ifndef BSDWAIT /* if wait is NOT a union: */
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# define WSTOPSIG(status) ((status >> 8) & 0377)
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# else
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# define WSTOPSIG(status) status.w_S.w_Stopsig
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# endif
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#endif
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/* NET-2 uses WCOREDUMP */
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#if defined(WCOREDUMP) && !defined(WIFCORESIG)
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# define WIFCORESIG(status) WCOREDUMP(status)
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#endif
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#ifndef WIFCORESIG
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# ifndef BSDWAIT /* if wait is NOT a union: */
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# define WIFCORESIG(status) (status & 0200)
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# else
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# define WIFCORESIG(status) status.w_T.w_Coredump
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# endif
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#endif
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#ifndef WEXITSTATUS
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# ifndef BSDWAIT /* if wait is NOT a union: */
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# define WEXITSTATUS(status) ((status >> 8) & 0377)
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# else
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# define WEXITSTATUS(status) status.w_T.w_Retcode
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# endif
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#endif
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/*****************************************************************
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* select stuff
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*/
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#if defined(M_XENIX) || defined(M_UNIX) || defined(_SEQUENT_)
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#include <sys/select.h> /* for timeval + FD... */
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#endif
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/*
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* SunOS 3.5 - Tom Schmidt - Micron Semiconductor, Inc - 27-Jul-93
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* tschmidt@vax.micron.com
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*/
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#ifndef FD_SET
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# ifndef SUNOS3
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typedef struct fd_set { int fds_bits[1]; } fd_set;
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# endif
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# define FD_ZERO(fd) ((fd)->fds_bits[0] = 0)
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# define FD_SET(b, fd) ((fd)->fds_bits[0] |= 1 << (b))
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# define FD_ISSET(b, fd) ((fd)->fds_bits[0] & 1 << (b))
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# define FD_SETSIZE 32
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#endif
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/*****************************************************************
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* user defineable stuff
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*/
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#ifndef TERMCAP_BUFSIZE
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# define TERMCAP_BUFSIZE 2048
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#endif
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#ifndef MAXPATHLEN
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# define MAXPATHLEN 1024
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#endif
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/*
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* you may try to vary this value. Use low values if your (VMS) system
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* tends to choke when pasting. Use high values if you want to test
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* how many characters your pty's can buffer.
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*/
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#define IOSIZE 4096
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