548 lines
14 KiB
C
548 lines
14 KiB
C
/* portability.h - include or define things that aren't present on all systems
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* vixie@decwrl 26dec92 [new]
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*
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* $Id: portability.h,v 8.8 1995/06/29 09:25:56 vixie Exp $
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*/
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/*
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* ++Copyright++
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* -
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* Copyright (c)
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* -
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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* -
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* --Copyright--
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*/
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/* XXX: this file has become a hopeless morass, and will be redone someday. */
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#include <string.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#ifndef TIME_H_INCLUDED
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# include <sys/time.h>
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# define TIME_H_INCLUDED
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#endif
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#ifdef ISC
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# ifndef _POSIX_SOURCE
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# define _POSIX_SOURCE
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# endif
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# define SYSV
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# define SVR3
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# define _SYSV3
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# define NEED_STRTOUL
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# define NEED_FTRUNCATE
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# define USE_POSIX
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# include <sys/bsdtypes.h>
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# include <sys/sioctl.h>
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# include <sys/stream.h>
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# include <net/errno.h>
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#endif
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#if defined(__convex__)
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# if !defined(_POSIX_SOURCE)
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# define _POSIX_SOURCE
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# endif
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# define USE_UTIME
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# define NEED_PUTENV
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#endif
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#if defined(_CRAY)
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# if !defined(_POSIX_SOURCE)
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# define _POSIX_SOURCE
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# endif
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# define writev(a,b,c) __writev(a,b,c)
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# define setitimer(a,b,c) __setitimer(a,b,c)
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#endif
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/* This is defined in the Makefile for ISC compiles. */
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#if defined(ISC)
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# define ftruncate(a,b) __ftruncate(a,b)
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# define USE_MEMCPY
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# define USE_UTIME
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# define HAVE_FCHMOD 0
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#endif
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/* SCO UNIX defines only this unique symbol, apparently. */
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#if defined(M_UNIX)
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/* XXX - why is this POSIX_SOURCE instead of _POSIX_SOURCE? */
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# undef POSIX_SOURCE
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# define POSIX_SIGNALS
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# define HAVE_FCHMOD 0
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# define writev(a,b,c) __writev(a,b,c)
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# define ftruncate(a,b) __ftruncate(a,b)
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#endif
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#ifdef NeXT
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# define NEED_PUTENV
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# define NEED_SETENV
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#endif
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#if defined(__sgi)
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# define BSD 43
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# define vfork fork
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#endif
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#if defined(SUNOS4)
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# define BSD 43
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#endif
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#if defined(_AUX_SOURCE)
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# define vfork fork
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# define NEED_STRERROR
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# define NEED_STRTOUL
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# define SIG_FN void
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# define USE_MEMCPY
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#endif
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#if defined(SVR4) && !defined(SYSV)
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# define SYSV
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#endif
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#if defined(_POSIX_SOURCE) || defined(__sgi) || defined(__ultrix) || \
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defined(__hpux) || (defined(BSD) && (BSD >= 199103)) || \
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(defined(sun) && defined(SYSV))
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# define USE_POSIX
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#endif
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#if defined(__ultrix) && !defined(BSD)
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# define BSD 42
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#endif
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#if defined(host_mips) && defined(SYSTYPE_BSD43)
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# define RISCOS_BSD
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#endif
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#if defined(SYSV) || defined(__ultrix) || defined(__osf__) \
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|| (defined(BSD) && BSD >= 199306) || defined(linux)
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# define USE_UTIME
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# define HAVE_SETVBUF
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#endif
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#if defined(SYSV) && !defined(SVR4)
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# define vfork fork
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#endif
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#if defined(sun) || defined(SVR4)
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# define NETREAD_BROKEN
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#endif
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#if defined(BSD) && BSD >= 199006 && !defined(i386) && !defined(RISCOS_BSD)
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# define HAVE_DAEMON
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#endif
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#if !defined(BSD) || (BSD <= 199006)
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# if !defined(NeXT)
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# define NEED_INETADDR
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# endif
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# define NEED_INETATON
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#endif
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#if defined(__hpux)
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# if defined(__STDC__)
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# define select(a,b,c,d,e) select(a, (int *)b, (int *)c, (int *)d, e)
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# define ctime(x) ctime((const time_t *)x)
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# endif /*__STDC__*/
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# if !defined(SYSV)
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# define USE_UTIME
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# define setlinebuf(x) setvbuf(x, NULL, _IOLBF, BUFSIZ)
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# if !defined(SIGWINCH) /*pre 9.0*/
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# define SIGWINCH SIGWINDOW
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# endif
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# endif /*SYSV*/
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/* XXX: better autodetection of the need for "struct linger" would be nice */
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# if 0
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struct linger {
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int l_onoff; /* option on/off */
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int l_linger; /* linger time */
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};
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# endif
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#endif /*__hpux*/
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#if defined(_SEQUENT_)
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# include <netinet/in_systm.h>
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# define USE_UTIME
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# define USE_POSIX
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# define NEED_GETTIMEOFDAY
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# define _TIMEZONE timezoneBSD
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struct timezoneBSD {
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int tz_minuteswest;
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int tz_dsttime;
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};
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#endif
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#ifndef __P
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# if defined(__STDC__) || defined(__GNUC__)
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# define __P(x) x
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# else
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# define __P(x) ()
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# endif
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#endif
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#ifndef _TIMEZONE
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# define _TIMEZONE timezone
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#endif
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#if defined(USE_POSIX)
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# include <stdlib.h>
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# include <unistd.h>
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# include <limits.h>
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#else
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# define NEED_STRTOUL
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# define STDIN_FILENO 0
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# define STDOUT_FILENO 1
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# define STDERR_FILENO 2
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# ifndef NeXT
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extern char *getenv __P((char *));
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# else
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extern char *getenv __P((const char *));
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# endif
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extern int errno;
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# if !defined(DMALLOC) && !defined(NeXT)
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extern char *malloc(), *realloc(), *calloc();
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# if defined(sun)
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extern int free();
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# else
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extern void free();
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# endif
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# endif
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extern int getdtablesize __P((void));
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# ifdef SHORT_FNAMES
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extern long pathconf __P((const char *path, int name));
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# endif
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#endif /*USE_POSIX*/
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#ifndef UINT_MAX
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# ifdef __STDC__
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# define UINT_MAX 4294967295u /* max value of an "u_int" */
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# else
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# define UINT_MAX ((unsigned)4294967295) /* max value of an "u_int" */
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# endif
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# define ULONG_MAX UINT_MAX /* max decimal value of a "u_long" */
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#endif
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#ifndef INT_MAX
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# define INT_MAX 2147483647 /* max decimal value of an "int" */
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#endif
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#ifndef RAND_MAX
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# define RAND_MAX 0x7fffffff
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#endif
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#ifndef IN_LOOPBACKNET
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# define IN_LOOPBACKNET 127
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#endif
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#ifndef INADDR_NONE
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# define INADDR_NONE 0xffffffff
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#endif
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#if defined(apollo)
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/* Defined in /usr/include/netinet/in.h but doesn't work */
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#undef IP_OPTIONS
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#endif
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#if !defined(__STDC__) && !defined(const)
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# define const /*constant*/
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#endif
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#if !defined(__convex__) && (!defined(BSD) || (BSD < 199103))
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int strcasecmp __P((const char *, const char *));
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#endif
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/* is USE_POSIX the right thing to use here? */
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#if (!defined(BSD) || (BSD <= 43)) && \
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!defined(NeXT) && \
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!defined(__convex__) && \
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!defined(USE_POSIX)
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# if !defined(NCR)
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extern void syslog();
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# endif
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extern char *ctime __P((const time_t *clock));
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extern int close(), setitimer(), recv(), sendto(), sigsetmask(),
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atoi(), getpid(), fork(), read(), ioctl(),
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setsockopt(), socket(), bind();
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#endif
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#if !defined(bcopy) /* some machines have their own macros for this */
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# if defined(USE_POSIX) || \
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(defined(__STDC__) && !defined(sun) && !defined(sequent))
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/* use ANSI C3.159-1989 (``ANSI C'') functions if possible;
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* ideally we would change the code to use them and then
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* define them in terms of bcopy et al if !defined(__STDC__)
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* but that's more work.
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*/
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#if defined(USE_MEMCPY)
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# define bcopy(a,b,c) memcpy(b,a,c)
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#else
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# define bcopy(a,b,c) memmove(b,a,c)
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#endif
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# define bzero(a,b) memset(a,0,b)
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# define bcmp(a,b,c) memcmp(a,b,c)
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# else
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extern void bcopy();
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extern void bzero();
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extern int bcmp();
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# endif /* BSD */
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#endif /* bcopy */
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#if (!defined(BSD) || (BSD < 43) || defined(RISCOS_BSD)) \
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&& !defined(USE_POSIX) && !defined(apollo) && !defined(sequent) \
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&& !defined(M_UNIX)
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# define NEED_STRERROR
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#if !defined(ultrix) && !defined(NCR)
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# define NEED_PUTENV
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#endif
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#endif
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#if defined(SUNOS4)
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# define NEED_STRERROR
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# if defined(sun386)
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# define pid_t int
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# define NEED_STRCASECMP
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# endif
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#endif
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#if (!defined(BSD) || (BSD < 43))
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# define NEED_MKSTEMP
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# if !defined(__ultrix) && !defined(apollo)
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# define NEED_STRCASECMP
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# define NEED_MKTEMP
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# if !defined(SVR4)
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# define NEED_STRPBRK
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# endif
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# endif
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#endif
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#if defined(USE_POSIX)
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# define POSIX_SIGNALS
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#endif
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/*
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* Attempt to configure for type of function returned by signal-catching
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* functions (which signal and sigvec.sv_handler take a pointer to).
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* This can guess for BSD; otherwise, define SIG_FN externally.
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*/
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#ifndef SIG_FN
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# ifdef BSD
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# if (BSD >= 199006) || defined(NeXT) || defined(__osf__) || defined(sun) \
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|| defined(__ultrix) || defined(apollo) || defined(POSIX_SIGNALS)
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# define SIG_FN void /* signal-catching functions return void */
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# else
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# define SIG_FN int /* signal-catching functions return int */
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# endif
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# else /*BSD*/
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# define SIG_FN void /* signal-catching functions return void */
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# endif /*BSD*/
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#endif
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#if !defined(ntohl) && !defined(htonl) && defined(BSD) && (BSD <= 43)
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/* if these aren't null macros in netinet/in.h, extern them here. */
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extern u_short htons(), ntohs();
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extern u_long htonl(), ntohl();
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#endif
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#if defined(USE_POSIX) && !defined(sun) && !defined(__sgi) \
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&& !defined(__convex__) && !defined(__ultrix) && !defined(_AUX_SOURCE)
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# define PORT_NONBLOCK O_NONBLOCK
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# define PORT_WOULDBLK EAGAIN
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#else
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# define PORT_NONBLOCK O_NDELAY
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# define PORT_WOULDBLK EWOULDBLOCK
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#endif
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#if defined(USE_POSIX)
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# define USE_SETSID
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#endif
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#if defined(USE_POSIX) || !defined(SYSV)
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#define USE_WAITPID
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#endif
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#if !defined(USE_POSIX)
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#define waitpid(x,y,z) (wait3(y,z,(struct rusage *)NULL))
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#endif
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#if defined(NeXT) || defined(_AIX) || defined(sun386)
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# undef WIFEXITED
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# undef WEXITSTATUS
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# undef WIFSIGNALED
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# undef WTERMSIG
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#endif /* NeXT */
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#if defined(sequent)
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#define WEXITSTATUS(x) ((x).w_retcode)
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#define WTERMSIG(x) ((x).w_termsig)
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#endif /* sequent */
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#if !defined(WIFEXITED)
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# define WIFEXITED(x) (!(x & 0177))
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#endif
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#if !defined(WEXITSTATUS)
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# define WEXITSTATUS(x) (x >> 8)
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#endif
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#if !defined(WIFSIGNALED)
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# define WIFSIGNALED(x) ((x & 0177) && ((x & 0377) != 0177))
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#endif
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#if !defined(WTERMSIG)
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# define WTERMSIG(x) (x & 0177)
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#endif
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#ifndef S_ISDIR
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# ifndef S_IFMT
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# define S_IFMT 0170000
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# endif
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# ifndef S_IFDIR
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# define S_IFDIR 0040000
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# endif
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# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
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#endif
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#ifndef S_ISREG
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# ifndef S_IFMT
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# define S_IFMT 0170000
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# endif
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# ifndef S_IFREG
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# define S_IFREG 0100000
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# endif
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# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
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#endif
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#ifndef S_ISFIFO
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# ifndef S_IFMT
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# define S_IFMT 0170000
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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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# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
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#endif
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#if defined(NEED_STRTOUL) && \
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(defined(__ultrix) || defined(__osf__) || defined(NeXT))
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# undef NEED_STRTOUL
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#endif
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#if defined(__ultrix) || defined(__osf__)
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# define MAYBE_HESIOD
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#endif
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#ifndef FD_SET
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#define NFDBITS 32
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#define FD_SETSIZE 32
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#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
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#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
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#define FD_ZERO(p) bzero((char *)(p), sizeof(*(p)))
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#endif
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#ifndef MIN
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# define MIN(x, y) ((x > y) ?y :x)
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#endif
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#ifndef MAX
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# define MAX(x, y) ((x > y) ?x :y)
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#endif
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#if !defined(PATH_MAX)
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# if defined(_POSIX_PATH_MAX)
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# define PATH_MAX _POSIX_PATH_MAX
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# else
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# if defined(MAXPATHLEN)
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# define PATH_MAX MAXPATHLEN
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# endif
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# endif
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#endif
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#if defined(BSD) || defined(__osf__) || defined(__convex__)
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# define HAVE_GETRUSAGE
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#endif
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/* May be set in the Makefile. */
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#if defined(HAVE_GETRUSAGE)
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# include <sys/resource.h>
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#endif
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/*
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* Because Convex has true library function feof() which is
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* patently wrong (it test bit _IOREAD) we need feof() as
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* a macro.
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*/
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#if defined(__convex__) && !defined(feof)
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# define feof(p) ((p)->_flag&_IOEOF)
|
|
#endif
|
|
|
|
#if defined(M_UNIX) || defined(linux)
|
|
# define SPURIOUS_ECONNREFUSED
|
|
#endif
|
|
|
|
/*
|
|
* Assume that a system has fchmod() unless something above says otherwise.
|
|
*/
|
|
#if !defined(HAVE_FCHMOD)
|
|
# define HAVE_FCHMOD 1
|
|
#endif
|
|
|
|
/*
|
|
* Prototype the functions we'll be supplying.
|
|
*/
|
|
#ifdef NEED_PUTENV
|
|
extern int putenv __P((char *));
|
|
#endif
|
|
|
|
#ifdef NEED_GETTIMEOFDAY
|
|
extern int gettimeofday __P((struct timeval *, struct _TIMEZONE *));
|
|
#endif
|