1 /* $FreeBSD$ */ 2 /* $NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-4-Clause 6 * 7 * Copyright (c) 1988, 1989, 1990, 1993 8 * The Regents of the University of California. All rights reserved. 9 * Copyright (c) 1989 by Berkeley Softworks 10 * All rights reserved. 11 * 12 * This code is derived from software contributed to Berkeley by 13 * Adam de Boor. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 3. All advertising materials mentioning features or use of this software 24 * must display the following acknowledgement: 25 * This product includes software developed by the University of 26 * California, Berkeley and its contributors. 27 * 4. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 */ 43 44 #include <sys/cdefs.h> 45 #ifndef lint 46 __RCSID("$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $"); 47 #endif /* not lint */ 48 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <err.h> 53 54 #include "ealloc.h" 55 56 static void enomem(void); 57 58 /* 59 * enomem -- 60 * die when out of memory. 61 */ 62 static void 63 enomem(void) 64 { 65 errx(2, "Cannot allocate memory."); 66 } 67 68 /* 69 * emalloc -- 70 * malloc, but die on error. 71 */ 72 void * 73 emalloc(size_t len) 74 { 75 void *p; 76 77 if ((p = malloc(len)) == NULL) 78 enomem(); 79 return(p); 80 } 81 82 /* 83 * estrdup -- 84 * strdup, but die on error. 85 */ 86 char * 87 estrdup(const char *str) 88 { 89 char *p; 90 91 if ((p = strdup(str)) == NULL) 92 enomem(); 93 return(p); 94 } 95 96 /* 97 * erealloc -- 98 * realloc, but die on error. 99 */ 100 void * 101 erealloc(void *ptr, size_t size) 102 { 103 if ((ptr = realloc(ptr, size)) == NULL) 104 enomem(); 105 return(ptr); 106 } 107 108 /* 109 * ecalloc -- 110 * calloc, but die on error. 111 */ 112 void * 113 ecalloc(size_t nmemb, size_t size) 114 { 115 void *ptr; 116 117 if ((ptr = calloc(nmemb, size)) == NULL) 118 enomem(); 119 return(ptr); 120 } 121