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freebsd-nq/contrib/bind/conf/portability.h
Peter Wemm e5167894d1 Import Paul Vixie/ISC's bind-4.9.5-patch1 onto the vendor branch. 
This has some (all?) of the DNSSEC key management/distribution mechanism
in place.  (The SIG and KEY RR's)

Obtained from: Paul Vixie / ISC / ftp.isc.org
1996-12-31 19:51:17 +00:00

640 lines
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/* portability.h - include or define things that aren't present on all systems
* vixie@decwrl 26dec92 [new]
*
* $Id: portability.h,v 8.20 1996/11/26 10:11:16 vixie Exp $
*/
/*
* 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.
*/
/*
* Portions Copyright (c) 1996 by Internet Software Consortium.
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM 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.
*/
#ifndef __BIND_PORTABILITY_H
#define __BIND_PORTABILITY_H
#include <sys/types.h>
#include <sys/param.h>
#include <signal.h>
#include <string.h>
#ifndef TIME_H_INCLUDED
# include <sys/time.h>
# define TIME_H_INCLUDED
#endif
/* (ISC = INTERACTIVE Systems Corporation in the next #ifdef, btw.) */
#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 for AIX 4.1.x */
#ifdef _AIX41
# include <sys/select.h>
# include <sys/time.h>
# include <time.h>
# define vfork fork
#endif
/* This is defined in the Makefile for INTERACTIVE 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)
# define POSIX_SIGNALS
# if !defined(_SCO_DS)
/* This section is for 3.2v4.2/ODT3.0 and maybe also for 3.2v4.1/3.2v4.0 */
/* XXX - why is this POSIX_SOURCE instead of _POSIX_SOURCE? */
# undef POSIX_SOURCE
# define HAVE_FCHMOD 0
# define NEED_WRITEV
# define writev(a,b,c) __writev(a,b,c)
# define ftruncate(a,b) __ftruncate(a,b)
# endif
#endif
#ifdef NeXT
# define NEED_PUTENV
# define NEED_SETENV
# define HAVE_STDLIB_H
# define NEED_STRDUP
# define inet_addr(a) __inet_addr(a)
#endif
#if defined(__sgi)
# define BSD 43
# define vfork fork
#endif
#if defined(SUNOS4)
# define BSD 43
# define NEED_STRTOUL
#endif
#if defined(__osf__) && defined(__alpha) && defined(BSD) && (BSD < 199103)
# 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(apollo)
# define HAVE_STDLIB_H
#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)
# 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) || defined(HAVE_STDLIB_H)
# include <stdlib.h>
# if defined(__ultrix)
# define NEED_STRDUP
# endif
#else
# if !defined(_SCO_DS)
# define NEED_STRDUP
# define NEED_STRTOUL
# endif
# ifndef NeXT
extern char *getenv __P((char *));
# else
extern char *getenv __P((const char *));
# endif
# if !defined(DMALLOC) && !defined(NeXT)
extern char *malloc(), *realloc(), *calloc();
extern void free();
# endif
#endif /*HAVE_STDLIB_H*/
#if defined(USE_POSIX)
# include <unistd.h>
# include <limits.h>
#else
# define STDIN_FILENO 0
# define STDOUT_FILENO 1
# define STDERR_FILENO 2
extern int errno;
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));
# if !defined(M_UNIX)
extern int close(), setitimer(), recv(), sendto(), sigsetmask(),
atoi(), getpid(), fork(), read(), ioctl(),
setsockopt(), socket(), bind();
# endif
#endif
#if !defined(bcopy) /* some machines have their own macros for this */
# if (defined(USE_POSIX) && !defined(SUNOS4)) || \
(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)) && !defined(__hpux)
# define NEED_MKSTEMP
# if !defined(__ultrix) && !defined(apollo)
# if !defined(_SCO_DS)
# define NEED_STRCASECMP
# define NEED_MKTEMP
# if !defined(SVR4)
# define NEED_STRPBRK
# endif
# 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 __P((u_short)), ntohs __P((u_short));
extern u_long htonl __P((u_long)), ntohl __P((u_long));
#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
/*
* Some systems need _res to be linked into text rather than bss.
*/
#if defined(__m88k__)
# define __BIND_RES_TEXT
#endif
/*
* We need to know the IPv6 address family number even on IPv4-only systems.
* Note that this is NOT a protocol constant, and that if the system has its
* own AF_INET6, different from ours below, all of BIND's libraries and
* executables will need to be recompiled after the system <sys/socket.h>
* has had this type added. The type number below is correct on most BSD-
* derived systems for which AF_INET6 is defined.
*/
#ifndef AF_INET6
#define AF_INET6 24
#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
#ifdef NEED_STRDUP
extern char *strdup __P((const char *));
#endif
#endif /*__BIND_PORTABILITY_H*/
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