[apple/libinfo.git] / dns.subproj / portability.h

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.1 (the "License").  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* portability.h - include or define things that aren't present on all systems
 * vixie@decwrl 26dec92 [new]
 *
 * $Id: portability.h,v 1.2 1999/10/14 21:56:45 wsanchez 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 <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

#if defined(__APPLE__) && BSD < 199506
# define NEED_PUTENV
# define NEED_SETENV
#endif

#if defined(__sgi)
# define BSD 43
# define vfork fork
#endif

#if defined(SUNOS4)
# define BSD 43
#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(__APPLE__)
#  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 __APPLE__
extern char *getenv __P((char *));
# else
extern char *getenv __P((const char *));
# endif
extern int errno;

# if !defined(DMALLOC) && !defined(__APPLE__)
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))
/* 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(__APPLE__) || 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(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(__APPLE__) || 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
Commit	Line	Data
03fb6eb0 A	1	/*
	2	* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.1 (the "License"). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
	13	*
	14	* The Original Code and all software distributed under the License are
	15	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License.
	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	/* portability.h - include or define things that aren't present on all systems
	25	* vixie@decwrl 26dec92 [new]
	26	*
	27	* $Id: portability.h,v 1.2 1999/10/14 21:56:45 wsanchez Exp $
	28	*/
	29
	30	/*
	31	* ++Copyright++
	32	* -
	33	* Copyright (c)
	34	* The Regents of the University of California. All rights reserved.
	35	*
	36	* Redistribution and use in source and binary forms, with or without
	37	* modification, are permitted provided that the following conditions
	38	* are met:
	39	* 1. Redistributions of source code must retain the above copyright
	40	* notice, this list of conditions and the following disclaimer.
	41	* 2. Redistributions in binary form must reproduce the above copyright
	42	* notice, this list of conditions and the following disclaimer in the
	43	* documentation and/or other materials provided with the distribution.
	44	* 3. All advertising materials mentioning features or use of this software
	45	* must display the following acknowledgement:
	46	* This product includes software developed by the University of
	47	* California, Berkeley and its contributors.
	48	* 4. Neither the name of the University nor the names of its contributors
	49	* may be used to endorse or promote products derived from this software
	50	* without specific prior written permission.
	51	*
	52	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	53	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	54	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	55	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	56	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	57	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	58	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	59	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	60	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	61	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	62	* SUCH DAMAGE.
	63	* -
	64	* Portions Copyright (c) 1993 by Digital Equipment Corporation.
65	*
66	* Permission to use, copy, modify, and distribute this software for any
67	* purpose with or without fee is hereby granted, provided that the above
68	* copyright notice and this permission notice appear in all copies, and that
69	* the name of Digital Equipment Corporation not be used in advertising or
70	* publicity pertaining to distribution of the document or software without
71	* specific, written prior permission.
72	*
73	* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
74	* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
75	* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
76	* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
77	* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
78	* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
79	* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
80	* SOFTWARE.
81	* -
82	* --Copyright--
83	*/
84
85	/* XXX: this file has become a hopeless morass, and will be redone someday. */
86
87	#include <string.h>
88	#include <sys/types.h>
89	#include <sys/param.h>
90	#ifndef TIME_H_INCLUDED
91	# include <sys/time.h>
92	# define TIME_H_INCLUDED
93	#endif
94
95	#ifdef ISC
96	# ifndef _POSIX_SOURCE
97	# define _POSIX_SOURCE
98	# endif
99	# define SYSV
100	# define SVR3
101	# define _SYSV3
102	# define NEED_STRTOUL
103	# define NEED_FTRUNCATE
104	# define USE_POSIX
105	# include <sys/bsdtypes.h>
106	# include <sys/sioctl.h>
107	# include <sys/stream.h>
108	# include <net/errno.h>
109	#endif
110
111	#if defined(__convex__)
112	# if !defined(_POSIX_SOURCE)
113	# define _POSIX_SOURCE
114	# endif
115	# define USE_UTIME
116	# define NEED_PUTENV
117	#endif
118
119	#if defined(_CRAY)
120	# if !defined(_POSIX_SOURCE)
121	# define _POSIX_SOURCE
122	# endif
123	# define writev(a,b,c) __writev(a,b,c)
124	# define setitimer(a,b,c) __setitimer(a,b,c)
125	#endif
126
127	/* This is defined in the Makefile for ISC compiles. */
128	#if defined(ISC)
129	# define ftruncate(a,b) __ftruncate(a,b)
130	# define USE_MEMCPY
131	# define USE_UTIME
132	# define HAVE_FCHMOD 0
133	#endif
134
135	/* SCO UNIX defines only this unique symbol, apparently. */
136	#if defined(M_UNIX)
137	/* XXX - why is this POSIX_SOURCE instead of _POSIX_SOURCE? */
138	# undef POSIX_SOURCE
139	# define POSIX_SIGNALS
140	# define HAVE_FCHMOD 0
141	# define writev(a,b,c) __writev(a,b,c)
142	# define ftruncate(a,b) __ftruncate(a,b)
143	#endif
144
145	#if defined(__APPLE__) && BSD < 199506
146	# define NEED_PUTENV
147	# define NEED_SETENV
148	#endif
149
150	#if defined(__sgi)
151	# define BSD 43
152	# define vfork fork
153	#endif
154
155	#if defined(SUNOS4)
156	# define BSD 43
157	#endif
158
159	#if defined(_AUX_SOURCE)
160	# define vfork fork
161	# define NEED_STRERROR
162	# define NEED_STRTOUL
163	# define SIG_FN void
164	# define USE_MEMCPY
165	#endif
166
167
168	#if defined(SVR4) && !defined(SYSV)
169	# define SYSV
170	#endif
171
172	#if defined(_POSIX_SOURCE) \|\| defined(__sgi) \|\| defined(__ultrix) \|\| \
173	defined(__hpux) \|\| (defined(BSD) && (BSD >= 199103)) \|\| \
174	(defined(sun) && defined(SYSV))
175	# define USE_POSIX
176	#endif
177
178	#if defined(__ultrix) && !defined(BSD)
179	# define BSD 42
180	#endif
181
182	#if defined(host_mips) && defined(SYSTYPE_BSD43)
183	# define RISCOS_BSD
184	#endif
185
186	#if defined(SYSV) \|\| defined(__ultrix) \|\| defined(__osf__) \
187	\|\| (defined(BSD) && BSD >= 199306) \|\| defined(linux)
188	# define USE_UTIME
189	# define HAVE_SETVBUF
190	#endif
191
192	#if defined(SYSV) && !defined(SVR4)
193	# define vfork fork
194	#endif
195
196	#if defined(sun) \|\| defined(SVR4)
197	# define NETREAD_BROKEN
198	#endif
199
200	#if defined(BSD) && BSD >= 199006 && !defined(i386) && !defined(RISCOS_BSD)
201	# define HAVE_DAEMON
202	#endif
203
204	#if !defined(BSD) \|\| (BSD <= 199006)
205	# if !defined(__APPLE__)
206	# define NEED_INETADDR
207	# endif
208	# define NEED_INETATON
209	#endif
210
211	#if defined(__hpux)
212	# if defined(__STDC__)
213	# define select(a,b,c,d,e) select(a, (int )b, (int )c, (int *)d, e)
214	# define ctime(x) ctime((const time_t *)x)
215	# endif /__STDC__/
216	# if !defined(SYSV)
217	# define USE_UTIME
218	# define setlinebuf(x) setvbuf(x, NULL, _IOLBF, BUFSIZ)
219	# if !defined(SIGWINCH) /pre 9.0/
220	# define SIGWINCH SIGWINDOW
221	# endif
222	# endif /SYSV/
223	/* XXX: better autodetection of the need for "struct linger" would be nice */
224	# if 0
225	struct linger {
226	int l_onoff; /* option on/off */
227	int l_linger; /* linger time */
228	};
229	# endif
230	#endif /__hpux/
231
232	#if defined(_SEQUENT_)
233	# include <netinet/in_systm.h>
234	# define USE_UTIME
235	# define USE_POSIX
236	# define NEED_GETTIMEOFDAY
237	# define _TIMEZONE timezoneBSD
238	struct timezoneBSD {
239	int tz_minuteswest;
240	int tz_dsttime;
241	};
242	#endif
243
244	#ifndef __P
245	# if defined(__STDC__) \|\| defined(__GNUC__)
246	# define __P(x) x
247	# else
248	# define __P(x) ()
249	# endif
250	#endif
251
252	#ifndef _TIMEZONE
253	# define _TIMEZONE timezone
254	#endif
255
256	#if defined(USE_POSIX)
257	# include <stdlib.h>
258	# include <unistd.h>
259	# include <limits.h>
260
261	#else
262
263	# define NEED_STRTOUL
264
265	# define STDIN_FILENO 0
266	# define STDOUT_FILENO 1
267	# define STDERR_FILENO 2
268	# ifndef __APPLE__
269	extern char getenv __P((char ));
270	# else
271	extern char getenv __P((const char ));
272	# endif
273	extern int errno;
274
275	# if !defined(DMALLOC) && !defined(__APPLE__)
276	extern char malloc(), realloc(), *calloc();
277	# if defined(sun)
278	extern int free();
279	# else
280	extern void free();
281	# endif
282	# endif
283
284	extern int getdtablesize __P((void));
285	# ifdef SHORT_FNAMES
286	extern long pathconf __P((const char *path, int name));
287	# endif
288
289	#endif /USE_POSIX/
290
291	#ifndef UINT_MAX
292	# ifdef __STDC__
293	# define UINT_MAX 4294967295u /* max value of an "u_int" */
294	# else
295	# define UINT_MAX ((unsigned)4294967295) /* max value of an "u_int" */
296	# endif
297	# define ULONG_MAX UINT_MAX /* max decimal value of a "u_long" */
298	#endif
299
300	#ifndef INT_MAX
301	# define INT_MAX 2147483647 /* max decimal value of an "int" */
302	#endif
303
304	#ifndef RAND_MAX
305	# define RAND_MAX 0x7fffffff
306	#endif
307
308	#ifndef IN_LOOPBACKNET
309	# define IN_LOOPBACKNET 127
310	#endif
311
312	#ifndef INADDR_NONE
313	# define INADDR_NONE 0xffffffff
314	#endif
315
316	#if defined(apollo)
317	/* Defined in /usr/include/netinet/in.h but doesn't work */
318	#undef IP_OPTIONS
319	#endif
320
321	#if !defined(__STDC__) && !defined(const)
322	# define const /constant/
323	#endif
324
325	#if !defined(__convex__) && (!defined(BSD) \|\| (BSD < 199103))
326	int strcasecmp __P((const char , const char ));
327	#endif
328
329	/* is USE_POSIX the right thing to use here? */
330	#if (!defined(BSD) \|\| (BSD <= 43)) && \
331	!defined(NeXT) && \
332	!defined(__convex__) && \
333	!defined(USE_POSIX)
334	# if !defined(NCR)
335	extern void syslog();
336	# endif
337	extern char ctime __P((const time_t clock));
338	extern int close(), setitimer(), recv(), sendto(), sigsetmask(),
339	atoi(), getpid(), fork(), read(), ioctl(),
340	setsockopt(), socket(), bind();
341	#endif
342
343	#if !defined(bcopy) /* some machines have their own macros for this */
344	# if defined(USE_POSIX) \|\| \
345	(defined(__STDC__) && !defined(sun) && !defined(sequent))
346	/* use ANSI C3.159-1989 (``ANSI C'') functions if possible;
347	* ideally we would change the code to use them and then
348	* define them in terms of bcopy et al if !defined(__STDC__)
349	* but that's more work.
350	*/
351	#if defined(USE_MEMCPY)
352	# define bcopy(a,b,c) memcpy(b,a,c)
353	#else
354	# define bcopy(a,b,c) memmove(b,a,c)
355	#endif
356	# define bzero(a,b) memset(a,0,b)
357	# define bcmp(a,b,c) memcmp(a,b,c)
358	# else
359	extern void bcopy();
360	extern void bzero();
361	extern int bcmp();
362	# endif /* BSD */
363	#endif /* bcopy */
364
365	#if (!defined(BSD) \|\| (BSD < 43) \|\| defined(RISCOS_BSD)) \
366	&& !defined(USE_POSIX) && !defined(apollo) && !defined(sequent) \
367	&& !defined(M_UNIX)
368	# define NEED_STRERROR
369	#if !defined(ultrix) && !defined(NCR)
370	# define NEED_PUTENV
371	#endif
372	#endif
373
374	#if defined(SUNOS4)
375	# define NEED_STRERROR
376	# if defined(sun386)
377	# define pid_t int
378	# define NEED_STRCASECMP
379	# endif
380	#endif
381
382	#if (!defined(BSD) \|\| (BSD < 43))
383	# define NEED_MKSTEMP
384	# if !defined(__ultrix) && !defined(apollo)
385	# define NEED_STRCASECMP
386	# define NEED_MKTEMP
387	# if !defined(SVR4)
388	# define NEED_STRPBRK
389	# endif
390	# endif
391	#endif
392
393	#if defined(USE_POSIX)
394	# define POSIX_SIGNALS
395	#endif
396
397	/*
398	* Attempt to configure for type of function returned by signal-catching
399	* functions (which signal and sigvec.sv_handler take a pointer to).
400	* This can guess for BSD; otherwise, define SIG_FN externally.
401	*/
402	#ifndef SIG_FN
403	# ifdef BSD
404	# if (BSD >= 199006) \|\| defined(__APPLE__) \|\| defined(__osf__) \|\| defined(sun) \
405	\|\| defined(__ultrix) \|\| defined(apollo) \|\| defined(POSIX_SIGNALS)
406	# define SIG_FN void /* signal-catching functions return void */
407	# else
408	# define SIG_FN int /* signal-catching functions return int */
409	# endif
410	# else /BSD/
411	# define SIG_FN void /* signal-catching functions return void */
412	# endif /BSD/
413	#endif
414
415	#if !defined(ntohl) && !defined(htonl) && defined(BSD) && (BSD <= 43)
416	/* if these aren't null macros in netinet/in.h, extern them here. */
417	extern u_short htons(), ntohs();
418	extern u_long htonl(), ntohl();
419	#endif
420
421	#if defined(USE_POSIX) && !defined(sun) && !defined(__sgi) \
422	&& !defined(__convex__) && !defined(__ultrix) && !defined(_AUX_SOURCE)
423	# define PORT_NONBLOCK O_NONBLOCK
424	# define PORT_WOULDBLK EAGAIN
425	#else
426	# define PORT_NONBLOCK O_NDELAY
427	# define PORT_WOULDBLK EWOULDBLOCK
428	#endif
429
430	#if defined(USE_POSIX)
431	# define USE_SETSID
432	#endif
433
434	#if defined(USE_POSIX) \|\| !defined(SYSV)
435	#define USE_WAITPID
436	#endif
437
438	#if !defined(USE_POSIX)
439	#define waitpid(x,y,z) (wait3(y,z,(struct rusage *)NULL))
440	#endif
441
442	#if defined(__APPLE__) \|\| defined(_AIX) \|\| defined(sun386)
443	# undef WIFEXITED
444	# undef WEXITSTATUS
445	# undef WIFSIGNALED
446	# undef WTERMSIG
447	#endif /* NeXT */
448
449	#if defined(sequent)
450	#define WEXITSTATUS(x) ((x).w_retcode)
451	#define WTERMSIG(x) ((x).w_termsig)
452	#endif /* sequent */
453
454	#if !defined(WIFEXITED)
455	# define WIFEXITED(x) (!(x & 0177))
456	#endif
457	#if !defined(WEXITSTATUS)
458	# define WEXITSTATUS(x) (x >> 8)
459	#endif
460	#if !defined(WIFSIGNALED)
461	# define WIFSIGNALED(x) ((x & 0177) && ((x & 0377) != 0177))
462	#endif
463	#if !defined(WTERMSIG)
464	# define WTERMSIG(x) (x & 0177)
465	#endif
466
467	#ifndef S_ISDIR
468	# ifndef S_IFMT
469	# define S_IFMT 0170000
470	# endif
471	# ifndef S_IFDIR
472	# define S_IFDIR 0040000
473	# endif
474	# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
475	#endif
476
477	#ifndef S_ISREG
478	# ifndef S_IFMT
479	# define S_IFMT 0170000
480	# endif
481	# ifndef S_IFREG
482	# define S_IFREG 0100000
483	# endif
484	# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
485	#endif
486
487	#ifndef S_ISFIFO
488	# ifndef S_IFMT
489	# define S_IFMT 0170000
490	# endif
491	# ifndef S_IFIFO
492	# define S_IFIFO 0010000
493	# endif
494	# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
495	#endif
496
497	#if defined(NEED_STRTOUL) && \
498	(defined(__ultrix) \|\| defined(__osf__) \|\| defined(NeXT))
499	# undef NEED_STRTOUL
500	#endif
501
502	#if defined(__ultrix) \|\| defined(__osf__)
503	# define MAYBE_HESIOD
504	#endif
505
506	#ifndef FD_SET
507	#define NFDBITS 32
508	#define FD_SETSIZE 32
509	#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] \|= (1 << ((n) % NFDBITS)))
510	#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
511	#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
512	#define FD_ZERO(p) bzero((char )(p), sizeof((p)))
513	#endif
514
515	#ifndef MIN
516	# define MIN(x, y) ((x > y) ?y :x)
517	#endif
518	#ifndef MAX
519	# define MAX(x, y) ((x > y) ?x :y)
520	#endif
521
522	#if !defined(PATH_MAX)
523	# if defined(_POSIX_PATH_MAX)
524	# define PATH_MAX _POSIX_PATH_MAX
525	# else
526	# if defined(MAXPATHLEN)
527	# define PATH_MAX MAXPATHLEN
528	# endif
529	# endif
530	#endif
531
532	#if defined(BSD) \|\| defined(__osf__) \|\| defined(__convex__)
533	# define HAVE_GETRUSAGE
534	#endif
535
536	/* May be set in the Makefile. */
537	#if defined(HAVE_GETRUSAGE)
538	# include <sys/resource.h>
539	#endif
540
541	/*
542	* Because Convex has true library function feof() which is
543	* patently wrong (it test bit _IOREAD) we need feof() as
544	* a macro.
545	*/
546	#if defined(__convex__) && !defined(feof)
547	# define feof(p) ((p)->_flag&_IOEOF)
548	#endif
549
550	#if defined(M_UNIX) \|\| defined(linux)
551	# define SPURIOUS_ECONNREFUSED
552	#endif
553
554	/*
555	* Assume that a system has fchmod() unless something above says otherwise.
556	*/
557	#if !defined(HAVE_FCHMOD)
558	# define HAVE_FCHMOD 1
559	#endif
560
561	/*
562	* Prototype the functions we'll be supplying.
563	*/
564	#ifdef NEED_PUTENV
565	extern int putenv __P((char *));
566	#endif
567
568	#ifdef NEED_GETTIMEOFDAY
569	extern int gettimeofday __P((struct timeval , struct _TIMEZONE ));
570	#endif