netbsd: bind 4.9.3

2 files changed, 738 insertions, 0 deletions

diff --git a/usr.sbin/named/conf/options.h b/usr.sbin/named/conf/options.h
new file mode 100644
index 00000000000..c032527d5cc
--- /dev/null
+++ b/usr.sbin/named/conf/options.h
@@ -0,0 +1,169 @@
+/*	$NetBSD: options.h,v 1.1 1996/02/02 15:26:11 mrg Exp $	*/
+
+/* options.h - specify the conditionally-compiled features
+ * vix 28mar92 [moved out of the Makefile because they were getting too big]
+ *
+ * $Id: options.h,v 8.7 1995/12/29 21:08:13 vixie Exp 
+ */
+
+/*
+ * ++Copyright++
+ * -
+ * Copyright (c) 
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ * 	This product includes software developed by the University of
+ * 	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ * 
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+/* Key:
+ *	ucb = U C Berkeley 4.8.3 release
+ *	vix = Paul Vixie of Digital
+ *	del = Don Lewis of Harris
+ *	mcsun = Piet Beertema of EUNet
+ *	asp = Andrew Partan of UUNet
+ *	pma = Paul Albitz of Hewlett Packard
+ *	bb = Bryan Beecher of UMich
+ *	mpa = Mark Andrews of CSIRO - DMS
+ *	rossc = Ross Cartlidge of The Univeritsy of Sydney
+ *	mtr = Marshall Rose of TPC.INT
+ *      bg = Benoit Grange of INRIA
+ *      ckd = Christopher Davis of Kapor Enterprises
+ *      gns = Greg Shapiro of WPI
+ */
+
+#define DEBUG		/* enable -d flag and SIGUSR[12] support (ucb) */
+/*#define ALLOW_T_UNSPEC /* enable the "unspec" RR type for old athena (ucb) */
+/*#define INVQ		/* enable inverse queries (nslookup) (ucb/vix) */
+/*#define DSTORAGE	/* debug malloc overruns using storage.o (ucb/vix) */
+/*#define DMALLOC	/* trace malloc orphans using dmalloc.o (vix) */
+#define XFRNETS  	/* enable "xfrnets" command in named.boot (vix) */
+#define PID_FIX   	/* be careful about overwriting named.pid file (del) */
+#define FWD_LOOP	/* try to break out of forwarding loops (del) */
+#define NO_GLUE  	/* don't accept or send out-of-zone glue (del) */
+#define	BOGUSNS  	/* detect bogus nameservers (mcsun) */
+#define QRYLOG  	/* enable SIGWINCH for query logging (bb) */
+/*#define YPKLUDGE  	/* deal effectively with broken "ypserv -i" (mcsun) */
+#define TRACEROOT  	/* trace bogus root servers and ignore them (pma,bb) */
+/*#define LOCALDOM	/* permit "domain" directive in named.boot (ucb) */
+#define FORCED_RELOAD	/* refresh secondary zones on SIGHUP (pma) */
+#define SLAVE_FORWARD	/* use sensible timeouts on slave forwarders (pma) */
+#define WANT_PIDFILE	/* if you want the named.pid file (ucb/arc) */
+#define DOTTED_SERIAL	/* if you want to be able to specify dotted serial#s */
+/*#define SENSIBLE_DOTS	/* if you want dotted serial#s to make numeric sense */
+#define NCACHE		/* negative caching (anant@isi.edu) */
+/*#define VALIDATE	/* validation procedure (anant@isi.edu) (BUGGY!) */
+/*#define SHORT_FNAMES	/* file names used in named-xfer need to be short */
+#define RESOLVSORT	/* allow sorting of addresses in gethostbyname (mpa) */
+#define STUBS		/* allow transfers of NS only for a zone (mpa) */
+#ifndef LOGFAC
+#define	LOGFAC LOG_DAEMON /* what syslog facility should named use? */
+#endif
+#define SECURE_ZONES	/* if you want to inhibit world access to zones (gns)*/
+#define ROUND_ROBIN	/* rotate databuf list after each access (mtr) */
+#define ADDAUTH 	/* return NS and glue w/ authorative answers (mpa) */
+#define RFC1535		/* use RFC 1535 default for "search" list (vix) */
+#define GEN_AXFR	/* distinct zones within each class */
+#define DATUMREFCNT	/* use reference counts on datums (mpa) */
+#define LAME_DELEGATION	/* lame delegations (original-del,reworked-bb&del)*/
+#define LAME_LOGGING LOG_WARNING /* log lame delegations, set log level */
+#define GETSER_LOGGING LOG_INFO /* log errors/timeouts getting serial number */
+/*#define RETURNSOA	/* good code that the world isn't ready for yet */
+#define CLEANCACHE	/* useful and necessary in the face of NCACHE */
+#define PURGE_ZONE	/* remove all traces of a zone when reloading (mpa) */
+/*#define STATS		/* keep nameserver statistics; uses more memory */
+#define RENICE  	/* named-xfer should run at normal priority */
+/*#define XSTATS	/* extended statistics, syslogged periodically (bg) */
+/*#define BIND_NOTIFY	/* experimental - do not enable in customer products */
+#define LOC_RR	/* support for (draft) LOC record parsing (ckd) */
+#define SORT_RESPONSE	/* should we try to sort responses optimally? (vix) */
+
+/*--------------------------------------------*
+ * no user-servicable parts beyond this point *
+ *--------------------------------------------*/
+
+/* if DSTORAGE is defined, we need to disable DMALLOC and remap
+ * malloc and free to storage.o's exported names.  storage.o also
+ * includes a calloc and a realloc, but once we drag in its malloc
+ * and free we'll get the others automatically and so will never
+ * pull in those routines from libc.a.
+ */
+#ifdef DSTORAGE
+# ifdef DMALLOC
+#  undef DMALLOC
+# endif /*DMALLOC*/
+# define malloc	rt_malloc
+# define free rt_free
+#endif /*DSTORAGE*/
+
+/* if DMALLOC is defined, grab the header file which will remap
+ * all the malloc-style names to those exported by dmalloc.o.  note
+ * that DMALLOC also changes the function signatures of several
+ * functions in private named source modules, and that this file
+ * (options.h) must be included before any other private *.h files
+ * since those *.h files have some conditional remapping to do.
+ */
+#ifdef DMALLOC
+# include "dmalloc.h"
+#endif
+
+/* systems with killall(1M) don't need this
+ */
+#ifdef __sgi
+# ifdef WANT_PIDFILE
+#  undef WANT_PIDFILE
+# endif
+#endif
+
+#ifdef LAME_LOGGING
+# define LAME_DELEGATION
+#endif
+
+#if defined(XSTATS) && !defined(STATS)
+# define STATS
+#endif
diff --git a/usr.sbin/named/conf/portability.h b/usr.sbin/named/conf/portability.h
new file mode 100644
index 00000000000..3cfc15ae4c9
--- /dev/null
+++ b/usr.sbin/named/conf/portability.h
@@ -0,0 +1,569 @@
+/*	$NetBSD: portability.h,v 1.1 1996/02/02 15:26:12 mrg Exp $	*/
+
+/* portability.h - include or define things that aren't present on all systems
+ * vixie@decwrl 26dec92 [new]
+ *
+ * $Id: portability.h,v 8.11 1995/12/22 10:20:19 vixie Exp 
+ */
+
+/*
+ * ++Copyright++
+ * -
+ * Copyright (c) 
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ * 	This product includes software developed by the University of
+ * 	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ * 
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+/* XXX:	this file has become a hopeless morass, and will be redone someday. */
+
+#include <string.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#ifndef TIME_H_INCLUDED
+# include <sys/time.h>
+# define TIME_H_INCLUDED
+#endif
+
+#ifdef ISC
+# ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+# endif
+# define SYSV
+# define SVR3
+# define _SYSV3
+# define NEED_STRTOUL
+# define NEED_FTRUNCATE
+# define USE_POSIX
+# include <sys/bsdtypes.h>
+# include <sys/sioctl.h>
+# include <sys/stream.h>
+# include <net/errno.h>
+#endif
+
+#if defined(__convex__)
+# if !defined(_POSIX_SOURCE)
+#  define _POSIX_SOURCE
+# endif
+# define USE_UTIME
+# define NEED_PUTENV
+#endif
+
+#if defined(_CRAY)
+# if !defined(_POSIX_SOURCE)
+#  define _POSIX_SOURCE
+# endif
+# define writev(a,b,c) __writev(a,b,c)
+# define setitimer(a,b,c) __setitimer(a,b,c)
+#endif
+
+/* This is defined in the Makefile for ISC compiles. */
+#if defined(ISC)
+# define ftruncate(a,b) __ftruncate(a,b)
+# define USE_MEMCPY
+# define USE_UTIME
+# define HAVE_FCHMOD 0
+#endif
+
+/* SCO UNIX defines only this unique symbol, apparently. */
+#if defined(M_UNIX)
+/* XXX - why is this POSIX_SOURCE instead of _POSIX_SOURCE? */
+# undef POSIX_SOURCE
+# define POSIX_SIGNALS
+# define HAVE_FCHMOD 0
+# define writev(a,b,c) __writev(a,b,c)
+# define ftruncate(a,b) __ftruncate(a,b)
+#endif
+
+#ifdef NeXT
+# define NEED_PUTENV
+# define NEED_SETENV
+# define inet_addr(a) __inet_addr(a)
+#endif
+
+#if defined(__sgi)
+# define BSD 43
+# define vfork fork
+#endif
+
+#if defined(SUNOS4)
+# define BSD 43
+#endif
+
+#if defined(__osf__) && defined(__alpha)
+# undef BSD
+# define BSD 199103
+#endif
+
+#if defined(_AUX_SOURCE)
+# define vfork fork
+# define NEED_STRERROR
+# define NEED_STRTOUL
+# define SIG_FN void
+# define USE_MEMCPY
+#endif
+
+
+#if defined(SVR4) && !defined(SYSV)
+# define SYSV
+#endif
+
+#if defined(_POSIX_SOURCE) || defined(__sgi) || defined(__ultrix) || \
+	defined(__hpux) || (defined(BSD) && (BSD >= 199103)) || \
+	(defined(sun) && defined(SYSV))
+# define USE_POSIX
+#endif
+
+#if defined(__ultrix) && !defined(BSD)
+# define BSD 42
+#endif
+
+#if defined(host_mips) && defined(SYSTYPE_BSD43)
+# define RISCOS_BSD
+#endif
+
+#if defined(SYSV) || defined(__ultrix) || defined(__osf__) \
+	|| (defined(BSD) && BSD >= 199306) || defined(linux)
+# define USE_UTIME
+# define HAVE_SETVBUF
+#endif
+
+#if defined(SYSV) && !defined(SVR4)
+# define vfork fork
+#endif
+
+#if defined(sun) || defined(SVR4)
+# define NETREAD_BROKEN
+#endif
+
+#if defined(BSD) && BSD >= 199006 && !defined(i386) && !defined(RISCOS_BSD)
+# define HAVE_DAEMON
+#endif
+
+#if !defined(BSD) || (BSD <= 199006)
+# if !defined(NeXT)
+#  define NEED_INETADDR
+# endif
+# define NEED_INETATON
+#endif
+
+#if defined(__hpux)
+# if defined(__STDC__)
+#  define select(a,b,c,d,e) select(a, (int *)b, (int *)c, (int *)d, e)
+#  define ctime(x) ctime((const time_t *)x)
+# endif /*__STDC__*/
+# if !defined(SYSV)
+#  define USE_UTIME
+#  define setlinebuf(x) setvbuf(x, NULL, _IOLBF, BUFSIZ)
+#  if !defined(SIGWINCH)  /*pre 9.0*/
+#   define SIGWINCH SIGWINDOW
+#  endif
+# endif /*SYSV*/
+/* XXX: better autodetection of the need for "struct linger" would be nice */
+# if 0
+struct	linger {
+	int	l_onoff;		/* option on/off */
+	int	l_linger;		/* linger time */
+};
+# endif
+#endif /*__hpux*/
+
+#if defined(_SEQUENT_)
+# include <netinet/in_systm.h>
+# define USE_UTIME
+# define USE_POSIX
+# define NEED_GETTIMEOFDAY
+# define _TIMEZONE timezoneBSD
+struct timezoneBSD {
+	int tz_minuteswest;
+	int tz_dsttime;
+};
+#endif
+
+#ifndef __P
+# if defined(__STDC__) || defined(__GNUC__)
+#  define __P(x) x
+# else
+#  define __P(x) ()
+# endif
+#endif
+
+#ifndef _TIMEZONE
+# define _TIMEZONE timezone
+#endif
+
+#if defined(USE_POSIX)
+# include <stdlib.h>
+# include <unistd.h>
+# include <limits.h>
+
+#else
+
+# define NEED_STRTOUL
+
+# define STDIN_FILENO	0
+# define STDOUT_FILENO	1
+# define STDERR_FILENO	2
+# ifndef NeXT
+extern char *getenv __P((char *));
+# else
+extern char *getenv __P((const char *));
+# endif
+extern int errno;
+
+# if !defined(DMALLOC) && !defined(NeXT)
+extern char *malloc(), *realloc(), *calloc();
+#  if defined(sun)
+extern int free();
+#  else
+extern void free();
+#  endif
+# endif
+
+extern int getdtablesize __P((void));
+# ifdef SHORT_FNAMES
+extern long pathconf __P((const char *path, int name));
+# endif
+
+#endif /*USE_POSIX*/
+
+#ifndef UINT_MAX
+# ifdef __STDC__
+#  define UINT_MAX	4294967295u             /* max value of an "u_int" */
+# else
+#  define UINT_MAX	((unsigned)4294967295)  /* max value of an "u_int" */
+# endif
+#  define ULONG_MAX	UINT_MAX        /* max decimal value of a "u_long" */
+#endif
+
+#ifndef INT_MAX
+# define INT_MAX	2147483647	/* max decimal value of an "int" */
+#endif
+
+#ifndef RAND_MAX
+# define RAND_MAX	0x7fffffff
+#endif
+
+#ifndef	IN_LOOPBACKNET
+# define IN_LOOPBACKNET	127
+#endif
+
+#ifndef	INADDR_NONE
+# define INADDR_NONE	0xffffffff
+#endif
+
+#if defined(apollo)
+		/* Defined in /usr/include/netinet/in.h but doesn't work */
+#undef IP_OPTIONS
+#endif
+
+#if !defined(__STDC__) && !defined(const)
+# define const /*constant*/
+#endif
+
+#if !defined(__convex__) && (!defined(BSD) || (BSD < 199103))
+int      strcasecmp __P((const char *, const char *));
+#endif
+
+/* is USE_POSIX the right thing to use here? */
+#if (!defined(BSD) || (BSD <= 43)) && \
+	!defined(NeXT) && \
+	!defined(__convex__) && \
+	!defined(USE_POSIX)
+# if !defined(NCR)
+extern void	syslog();
+# endif
+extern char	*ctime __P((const time_t *clock));
+extern int	close(), setitimer(), recv(), sendto(), sigsetmask(),
+		atoi(), getpid(), fork(), read(), ioctl(),
+		setsockopt(), socket(), bind();
+#endif
+
+#if !defined(bcopy)	/* some machines have their own macros for this */
+# if defined(USE_POSIX) || \
+	 (defined(__STDC__) && !defined(sun) && !defined(sequent) \
+	  && !defined(M_UNIX))
+/* use ANSI C3.159-1989 (``ANSI C'') functions if possible;
+ * ideally we would change the code to use them and then
+ * define them in terms of bcopy et al if !defined(__STDC__)
+ * but that's more work.
+ */
+#if defined(USE_MEMCPY)
+#  define bcopy(a,b,c) memcpy(b,a,c)
+#else
+#  define bcopy(a,b,c) memmove(b,a,c)
+#endif
+#  define bzero(a,b) memset(a,0,b)
+#  define bcmp(a,b,c) memcmp(a,b,c)
+# else
+extern void bcopy();
+extern void bzero();
+extern int bcmp();
+# endif /* BSD */
+#endif /* bcopy */
+
+#if (!defined(BSD) || (BSD < 43) || defined(RISCOS_BSD)) \
+	&& !defined(USE_POSIX) && !defined(apollo) && !defined(sequent) \
+	&& !defined(M_UNIX)
+# define NEED_STRERROR
+#if !defined(ultrix) && !defined(NCR)
+# define NEED_PUTENV
+#endif
+#endif
+
+#if defined(SUNOS4)
+# define NEED_STRERROR
+# if defined(sun386)
+#  define pid_t int
+#  define NEED_STRCASECMP
+# endif
+#endif
+
+#if (!defined(BSD) || (BSD < 43))
+# define NEED_MKSTEMP
+# if !defined(__ultrix) && !defined(apollo)
+#  define NEED_STRCASECMP
+#  define NEED_MKTEMP
+#  if !defined(SVR4)
+#   define NEED_STRPBRK
+#  endif
+# endif
+#endif
+
+#if defined(USE_POSIX)
+# define POSIX_SIGNALS
+#endif
+
+/*
+ * Attempt to configure for type of function returned by signal-catching
+ * functions (which signal and sigvec.sv_handler take a pointer to).
+ * This can guess for BSD; otherwise, define SIG_FN externally.
+ */
+#ifndef	SIG_FN
+# ifdef BSD
+#  if (BSD >= 199006) || defined(NeXT) || defined(__osf__) || defined(sun) \
+	|| defined(__ultrix) || defined(apollo) || defined(POSIX_SIGNALS)
+#   define SIG_FN void		/* signal-catching functions return void */
+#  else
+#   define SIG_FN int		/* signal-catching functions return int */
+#  endif
+# else /*BSD*/
+#  define SIG_FN void		/* signal-catching functions return void */
+# endif /*BSD*/
+#endif
+
+#if !defined(SIGUSR1) && !defined(SIGUSR2)
+# define SIGUSR1 SIGEMT
+# define SIGUSR2 SIGFPE
+#endif
+#if !defined(SIGCHLD)
+# define SIGCHLD SIGCLD
+#endif
+
+#if !defined(ntohl) && !defined(htonl) && defined(BSD) && (BSD <= 43)
+/* if these aren't null macros in netinet/in.h, extern them here. */
+extern u_short htons(), ntohs();
+extern u_long htonl(), ntohl();
+#endif
+
+#if defined(USE_POSIX) && !defined(sun) && !defined(__sgi) \
+	&& !defined(__convex__) && !defined(__ultrix) && !defined(_AUX_SOURCE)
+# define PORT_NONBLOCK	O_NONBLOCK
+# define PORT_WOULDBLK	EAGAIN
+#else
+# define PORT_NONBLOCK	O_NDELAY
+# define PORT_WOULDBLK	EWOULDBLOCK
+#endif
+
+#if defined(USE_POSIX)
+# define USE_SETSID
+#endif
+
+#if defined(USE_POSIX) || !defined(SYSV)
+#define USE_WAITPID
+#endif
+
+#if !defined(USE_POSIX)
+#define waitpid(x,y,z) (wait3(y,z,(struct rusage *)NULL))
+#endif
+
+#if defined(NeXT) || defined(_AIX) || defined(sun386)
+# undef WIFEXITED
+# undef WEXITSTATUS
+# undef WIFSIGNALED
+# undef WTERMSIG
+#endif /* NeXT */
+
+#if defined(sequent)
+#define WEXITSTATUS(x)	((x).w_retcode)
+#define WTERMSIG(x)	((x).w_termsig)
+#endif /* sequent */
+
+#if !defined(WIFEXITED)
+# define WIFEXITED(x) (!(x & 0177))
+#endif
+#if !defined(WEXITSTATUS)
+# define WEXITSTATUS(x) (x >> 8)
+#endif
+#if !defined(WIFSIGNALED)
+# define WIFSIGNALED(x) ((x & 0177) && ((x & 0377) != 0177))
+#endif
+#if !defined(WTERMSIG)
+# define WTERMSIG(x) (x & 0177)
+#endif
+
+#ifndef S_ISDIR
+# ifndef S_IFMT
+#  define S_IFMT 0170000
+# endif
+# ifndef S_IFDIR
+#  define S_IFDIR 0040000
+# endif
+# define S_ISDIR(m)	((m & S_IFMT) == S_IFDIR)
+#endif
+
+#ifndef S_ISREG
+# ifndef S_IFMT
+#  define S_IFMT 0170000
+# endif
+# ifndef S_IFREG
+#  define S_IFREG 0100000
+# endif
+# define S_ISREG(m)	((m & S_IFMT) == S_IFREG)
+#endif
+
+#ifndef S_ISFIFO
+# ifndef S_IFMT
+#  define S_IFMT 0170000
+# endif
+# ifndef S_IFIFO
+#  define S_IFIFO 0010000
+# endif
+# define S_ISFIFO(m)	((m & S_IFMT) == S_IFIFO)
+#endif
+
+#if defined(NEED_STRTOUL) && \
+	(defined(__ultrix) || defined(__osf__) || defined(NeXT))
+# undef NEED_STRTOUL
+#endif
+
+#if defined(__ultrix) || defined(__osf__)
+# define MAYBE_HESIOD
+#endif
+
+#ifndef FD_SET
+#define	NFDBITS		32
+#define	FD_SETSIZE	32
+#define	FD_SET(n, p)	((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
+#define	FD_CLR(n, p)	((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
+#define	FD_ISSET(n, p)	((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
+#define FD_ZERO(p)	bzero((char *)(p), sizeof(*(p)))
+#endif
+
+#ifndef MIN
+# define MIN(x, y)	((x > y) ?y :x)
+#endif
+#ifndef MAX
+# define MAX(x, y)	((x > y) ?x :y)
+#endif
+
+#if !defined(PATH_MAX)
+# if defined(_POSIX_PATH_MAX)
+#  define PATH_MAX _POSIX_PATH_MAX
+# else
+#  if defined(MAXPATHLEN)
+#   define PATH_MAX MAXPATHLEN
+#  endif
+# endif
+#endif
+
+#if defined(BSD) || defined(__osf__) || defined(__convex__)
+# define HAVE_GETRUSAGE
+#endif
+
+/* May be set in the Makefile. */
+#if defined(HAVE_GETRUSAGE)
+# include <sys/resource.h>
+#endif
+
+/*
+ *  Because Convex has true library function feof() which is
+ *  patently wrong (it test bit _IOREAD) we need feof() as
+ *  a macro.
+ */
+#if defined(__convex__) && !defined(feof)
+#  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
+
+#if defined(SVR4) && defined(sun)
+extern int gethostname __P((char *, size_t));
+#endif