/* portability.h - include or define things that aren't present on all systems * vixie@decwrl 26dec92 [new] * * $Id: portability.h,v 8.21 1997/06/01 20:34:27 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 // Force WINNT macro if WIN32 is set (always set on latest Windows platforms) #ifdef WIN32 # ifndef WINNT # define WINNT # endif /* WINNT */ # ifndef USE_OPTIONS_H # define USE_OPTIONS_H # endif /* USE_OPTIONS_H */ # ifndef i386 # define i386 # endif /* i386 */ #endif /* WIN32 */ #include #ifndef WINNT #include #endif #include #include #ifndef WINNT #ifndef TIME_H_INCLUDED # include # define TIME_H_INCLUDED #endif #endif /* WINNT */ #ifdef WINNT #ifndef _PORTABILITY_H #define _PORTABILITY_H # ifndef FD_SETSIZE # define FD_SETSIZE 512 # endif #include #ifdef BUFSIZ #undef BUFSIZ #endif #define BUFSIZ 1024 /* GMS - added since Unix used 1K and NT 512B */ #include #include #include #include #include #include #include #include #include #define NOWAIT #define HAVE_SETVBUF #define NEED_GETTIMEOFDAY #define USE_MEMCPY #undef IP_OPTIONS #define PATH_MAX MAX_PATH #define ETIMEDOUT WSAETIMEDOUT #define ECONNRESET WSAECONNRESET #define ECONNREFUSED WSAECONNREFUSED #define EADDRINUSE WSAEADDRINUSE #define PORT_WOULDBLK WSAEWOULDBLOCK #define _TIMEZONE timezoneBSD struct timezoneBSD { int tz_minuteswest; int tz_dsttime; }; struct iovec { char * iov_base; int iov_len; }; typedef char * caddr_t; typedef long pid_t; #define sleep(t) Sleep(t*1000) #ifdef errno #undef errno #endif #define errno WSAGetLastError() /* #define close(s) closesocket(s) */ #define chdir(path) SetCurrentDirectory(path) #define dup2(s1, s2) DuplicateHandle(GetCurrentProcess(), (HANDLE)(s1), \ GetCurrentProcess(), (LPHANDLE)&(s2), \ 0, FALSE, DUPLICATE_SAME_ACCESS); #define strcasecmp(x, y) stricmp(x, y) #define strncasecmp(x, y, z) strnicmp(x, y, z) void service_main(DWORD, LPTSTR *); void service_ctrl(DWORD); void worker_thread(void *); void dispatch_thread(void *); void syslog(int, char *, ...); void expand_paths(void); int writev(int, struct iovec *, int); int mkstemp(char *); #define MAXALIASES 35 #define LOG_EMERG 0 /* system is unusable */ #define LOG_ALERT 1 /* action must be taken immediately */ #define LOG_CRIT 2 /* critical conditions */ #define LOG_ERR 3 /* error conditions */ #define LOG_WARNING 4 /* warning conditions */ #define LOG_NOTICE 5 /* normal but signification condition */ #define LOG_INFO 6 /* informational */ #define LOG_DEBUG 7 /* debug-level messages */ /* control codes that the service will accept */ #define SERVICE_CONTROL_DUMPDB 128 #define SERVICE_CONTROL_RELOAD 129 #define SERVICE_CONTROL_STATS 130 #define SERVICE_CONTROL_TRACE 131 #define SERVICE_CONTROL_NOTRACE 132 #define SERVICE_CONTROL_QRYLOG 133 #define SERVICE_CONTROL_CHKPT 134 #define SERVICE_CONTROL_EXIT 135 #define SERVICE_CONTROL_NOLOG 136 #define SERVICE_CONTROL_LOG 137 #endif /* _PORTABILITY_H */ #endif /* WINNT */ /* (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 # include # include # include #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 # include # include # 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) || defined(__m88k__) # 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) && !defined(WINNT) # 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 # 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 # if defined(__ultrix) # define NEED_STRDUP # endif #else # if !defined(_SCO_DS) # define NEED_STRDUP # define NEED_STRTOUL # endif # if !defined(NeXT) && !defined(WINNT) extern char *getenv __P((char *)); # else //extern char *getenv __P((const char *)); # endif # if !defined(DMALLOC) && !defined(NeXT) && !defined(WINNT) extern char *malloc(), *realloc(), *calloc(); extern void free(); # endif #endif /*HAVE_STDLIB_H*/ #if defined(USE_POSIX) # include # include #else # define STDIN_FILENO 0 # define STDOUT_FILENO 1 # define STDERR_FILENO 2 #ifndef WINNT extern int errno; #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) && !defined(WINNT) # 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(WINNT) && \ !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(WINNT) ||\ (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) && !defined(WINNT) # 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) && !defined(WINNT) # 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 #if !defined(WINNT) # define PORT_NONBLOCK O_NDELAY # define PORT_WOULDBLK EWOULDBLOCK #endif #endif #if defined(USE_POSIX) # define USE_SETSID #endif #if defined(USE_POSIX) || !defined(SYSV) #define USE_WAITPID #endif #if !defined(USE_POSIX) && !defined(WINNT) #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 */ #ifndef WINNT #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 #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) || defined(WINNT)) # 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 #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) && !defined(WINNT) # 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 /* * Motorola FH40.43 and FH40.44 need specific macros for * get/settimeofday as only one argument seems to be accepted * by the compiler. NULL generates compile errors */ #if defined(__m88k__) && defined(__unix__) # define gettimeofday(tp, tzp) gettimeofday(tp) # define settimeofday(tp, tzp) settimeofday(tp) #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 * 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 WINNT #undef NEED_STRDUP #endif #ifdef NEED_STRDUP extern char *strdup __P((const char *)); #endif #endif /*__BIND_PORTABILITY_H*/ #ifdef WINNT /* l kahn new definitions needed for vc++4.0 */ #undef NEED_STRDUP #define fstat _fstat #define stat _stat #define fileno _fileno extern BOOL OnWinnt(); #endif