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mem.c revision 1.1 
      1 /*	$NetBSD: mem.c,v 1.1 2002/01/18 20:39:23 thorpej 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 #ifndef lint
     36 __RCSID("$NetBSD: mem.c,v 1.1 2002/01/18 20:39:23 thorpej Exp $");
     37 #endif
     38 
     39 #include <stdlib.h>
     40 #include <string.h>
     41 #include <err.h>
     42 
     43 #include "lint.h"
     44 
     45 void *
     46 xmalloc(size_t s)
     47 {
     48 	void	*p;
     49 
     50 	if ((p = malloc(s)) == NULL)
     51 		nomem();
     52 	return (p);
     53 }
     54 
     55 void *
     56 xcalloc(size_t n, size_t s)
     57 {
     58 	void	*p;
     59 
     60 	if ((p = calloc(n, s)) == NULL)
     61 		nomem();
     62 	return (p);
     63 }
     64 
     65 void *
     66 xrealloc(void *p, size_t s)
     67 {
     68 
     69 	if ((p = realloc(p, s)) == NULL)
     70 		nomem();
     71 	return (p);
     72 }
     73 
     74 char *
     75 xstrdup(const char *s)
     76 {
     77 	char	*s2;
     78 
     79 	if ((s2 = strdup(s)) == NULL)
     80 		nomem();
     81 	return (s2);
     82 }
     83 
     84 void
     85 nomem(void)
     86 {
     87 
     88 	errx(1, "virtual memory exhausted");
     89 }
     90