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mem.c revision 1.3 
      1 /*	$NetBSD: mem.c,v 1.3 2002/01/31 19:36:53 tv Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994, 1995 Jochen Pohl
      5  * All Rights Reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Jochen Pohl for
     18  *	The NetBSD Project.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 #if defined(__RCSID) && !defined(lint)
     36 __RCSID("$NetBSD: mem.c,v 1.3 2002/01/31 19:36:53 tv Exp $");
     37 #endif
     38 
     39 #include <stdlib.h>
     40 #include <string.h>
     41 
     42 #include "lint.h"
     43 
     44 void *
     45 xmalloc(size_t s)
     46 {
     47 	void	*p;
     48 
     49 	if ((p = malloc(s)) == NULL)
     50 		nomem();
     51 	return (p);
     52 }
     53 
     54 void *
     55 xcalloc(size_t n, size_t s)
     56 {
     57 	void	*p;
     58 
     59 	if ((p = calloc(n, s)) == NULL)
     60 		nomem();
     61 	return (p);
     62 }
     63 
     64 void *
     65 xrealloc(void *p, size_t s)
     66 {
     67 
     68 	if ((p = realloc(p, s)) == NULL)
     69 		nomem();
     70 	return (p);
     71 }
     72 
     73 char *
     74 xstrdup(const char *s)
     75 {
     76 	char	*s2;
     77 
     78 	if ((s2 = strdup(s)) == NULL)
     79 		nomem();
     80 	return (s2);
     81 }
     82 
     83 void
     84 nomem(void)
     85 {
     86 
     87 	errx(1, "virtual memory exhausted");
     88 }
     89