+/* defs.h - include or define things that aren't present on all systems
+ * vixie@decwrl 26dec92 [new]
+ *
+ * $Id: portability.h,v 1.1 1993/06/01 00:45:28 vixie Exp vixie $
+ */
+
+/*
+ * ++Copyright++
+ * -
+ * Copyright (c) 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--
+ */
+
+#include <string.h>
+#include <sys/types.h>
+#include <sys/param.h>
+
+#ifdef __sgi
+#define BSD 43
+#define _POSIX_SOURCE
+#define vfork fork
+#define USE_SETSID
+#endif
+
+#if defined(host_mips) && defined(SYSTYPE_BSD43)
+#define RISCOS_BSD
+#endif
+
+/* primative but it will do for now */
+#if !defined(SYSV)
+#define USE_WAIT3
+#endif
+
+#if defined(SYSV) || defined(ultrix) || (defined(BSD) && BSD >= 199306)
+#define USE_UTIME
+#endif
+
+#if defined(BSD) && BSD >= 199006 && !defined(i386) && !defined(RISCOS_BSD)
+#define HAVE_DAEMON
+#endif
+
+#if defined(_POSIX_SOURCE)
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+
+#else /*POSIX*/
+
+#define STDERR_FILENO 2
+extern char *getenv();
+extern int errno;
+
+#ifndef DMALLOC
+extern char *malloc(), *realloc(), *calloc();
+extern void free();
+#endif
+
+#endif /*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 IN_LOOPBACKNET
+#define IN_LOOPBACKNET 127
+#endif
+
+#ifndef INADDR_NONE
+#define INADDR_NONE 0xffffffff
+#endif
+
+#if !defined(__STDC__) && !defined(const)
+#define const /*constant*/
+#endif
+
+#if (!defined(BSD) || (BSD <= 43)) && !defined(NeXT)
+extern void syslog();
+extern char *ctime();
+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(BSD)
+#define bcopy(a,b,c) memcpy(b,a,c)
+#define bzero(a,b) memset(a,0,b)
+#define bcmp(a,b,c) memcmp(a,b,c)
+#else
+extern int strcasecmp();
+extern int bcmp();
+extern void bcopy(), bzero();
+#endif /* BSD */
+#endif /* bcopy */
+
+#if (!defined(BSD) || (BSD < 43) || defined(RISCOS_BSD)) && !defined(_POSIX_SOURCE)
+#define NEED_STRERROR
+#endif
+
+#if (!defined(BSD) || (BSD < 43)) && !defined(ultrix)
+#define NEED_STRCASECMP
+#define NEED_STRTOUL
+#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__)
+#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(_POSIX_SOURCE) && !defined(sun) && !defined(__sgi)
+#define PORT_NONBLOCK O_NONBLOCK
+#define PORT_WOULDBLK EAGAIN
+#else
+#define PORT_NONBLOCK O_NDELAY
+#define PORT_WOULDBLK EWOULDBLOCK
+#endif
+
+#if defined(_POSIX_SOURCE)
+#define USE_SETSID
+#endif
+
+#if defined(__osf__) || (defined(BSD) && (BSD > 43) && !defined(RISCOS_BSD))
+typedef int WAIT_T;
+#else
+typedef union wait WAIT_T;
+#endif
+
+#if (!defined(WEXITSTATUS)) || (!defined(WTERMSIG))
+#define WEXITSTATUS(x) (x).w_retcode
+#define WTERMSIG(x) (x).w_termsig
+#endif
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