1 /* $FreeBSD$ */ 2 /* $NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $ */ 3 4 /* 5 * Copyright (c) 1988, 1989, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * Copyright (c) 1989 by Berkeley Softworks 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Adam de Boor. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 */ 41 42 #include <sys/cdefs.h> 43 #ifndef lint 44 __RCSID("$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $"); 45 #endif /* not lint */ 46 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <err.h> 51 52 #include "ealloc.h" 53 54 static void enomem(void); 55 56 /* 57 * enomem -- 58 * die when out of memory. 59 */ 60 static void 61 enomem(void) 62 { 63 errx(2, "Cannot allocate memory."); 64 } 65 66 /* 67 * emalloc -- 68 * malloc, but die on error. 69 */ 70 void * 71 emalloc(size_t len) 72 { 73 void *p; 74 75 if ((p = malloc(len)) == NULL) 76 enomem(); 77 return(p); 78 } 79 80 /* 81 * estrdup -- 82 * strdup, but die on error. 83 */ 84 char * 85 estrdup(const char *str) 86 { 87 char *p; 88 89 if ((p = strdup(str)) == NULL) 90 enomem(); 91 return(p); 92 } 93 94 /* 95 * erealloc -- 96 * realloc, but die on error. 97 */ 98 void * 99 erealloc(void *ptr, size_t size) 100 { 101 if ((ptr = realloc(ptr, size)) == NULL) 102 enomem(); 103 return(ptr); 104 } 105 106 /* 107 * ecalloc -- 108 * calloc, but die on error. 109 */ 110 void * 111 ecalloc(size_t nmemb, size_t size) 112 { 113 void *ptr; 114 115 if ((ptr = calloc(nmemb, size)) == NULL) 116 enomem(); 117 return(ptr); 118 } 119