568 lines
14 KiB
C
568 lines
14 KiB
C
/* portability.h - include or define things that aren't present on all systems
|
|
* vixie@decwrl 26dec92 [new]
|
|
*
|
|
* $Id: portability.h,v 1.3 1995/08/20 21:19:11 peter 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
|