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      1 /*	$NetBSD: var.h,v 1.4.6.1 2007/06/06 15:36:38 vanhu Exp $	*/
      2 
      3 /* Id: var.h,v 1.6 2004/11/20 16:16:59 monas Exp */
      4 
      5 /*
      6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. Neither the name of the project nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _VAR_H
     35 #define _VAR_H
     36 
     37 #if !defined(_VAR_H_)
     38 #define _VAR_H_
     39 
     40 #define MAX3(a, b, c) (a > b ? (a > c ? a : c) : (b > c ? b : c))
     41 
     42 #define ISSET(exp, bit) (((exp) & (bit)) == (bit))
     43 
     44 #define LALIGN(a) \
     45     ((a) > 0 ? ((a) &~ (sizeof(long) - 1)) : sizeof(long))
     46 
     47 #define RNDUP(a) \
     48     ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
     49 
     50 #define ARRAYLEN(a)	(sizeof(a)/sizeof(a[0]))
     51 
     52 #define BUFSIZE    5120
     53 
     54 #ifndef FALSE
     55 #define FALSE 0
     56 #endif
     57 #ifndef TRUE
     58 #define TRUE 1
     59 #endif
     60 
     61 #ifdef ENABLE_STATS
     62 #include <sys/time.h>
     63 #endif
     64 #include <sys/socket.h>
     65 
     66 /*
     67  * use of GETNAMEINFO(x, y, NULL) is not politically correct,
     68  * as sizeof(NULL) would be 4, not 0. Also, gcc-3.4.2+ bombs on it.
     69  * In such cases, use GETNAMEINFO_NULL(x, y)
     70  */
     71 #include <sys/socket.h>
     72 #include <netdb.h>
     73 
     74 /* var.h is used from non-racoon code (like eaytest), so we can't use niflags */
     75 #define NIFLAGS	(NI_NUMERICHOST | NI_NUMERICSERV)
     76 
     77 #define GETNAMEINFO(x, y, z) \
     78 do { \
     79 	if (getnameinfo((x), sysdep_sa_len(x), (y), sizeof(y), (z), sizeof(z), \
     80 			NIFLAGS) != 0) { \
     81 		if (y != NULL) \
     82 			strncpy((y), "(invalid)", sizeof(y)); \
     83 		if (z != NULL) \
     84 			strncpy((z), "(invalid)", sizeof(z)); \
     85 	} \
     86 } while (0);
     87 
     88 #define GETNAMEINFO_NULL(x, y) \
     89 do { \
     90 	if (getnameinfo((x), sysdep_sa_len(x), (y), sizeof(y), NULL, 0, \
     91 			NIFLAGS) != 0) { \
     92 		if (y != NULL) \
     93 			strncpy((y), "(invalid)", sizeof(y)); \
     94 	} \
     95 } while (0);
     96 
     97 #include <sys/queue.h>
     98 #ifndef LIST_FOREACH
     99 #define LIST_FOREACH(elm, head, field) \
    100 	for (elm = LIST_FIRST(head); elm; elm = LIST_NEXT(elm, field))
    101 #endif
    102 
    103 #include "gcmalloc.h"
    104 
    105 #endif /*!defined(_VAR_H_)*/
    106 
    107 #endif /* _VAR_H */
    108