1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2001-2002 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * Routines for memory management 29 */ 30 31 #include <sys/types.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <string.h> 35 #include <strings.h> 36 37 static void 38 memory_bailout(void) 39 { 40 (void) fprintf(stderr, "Out of memory\n"); 41 exit(1); 42 } 43 44 void * 45 xmalloc(size_t size) 46 { 47 void *mem; 48 49 if ((mem = malloc(size)) == NULL) 50 memory_bailout(); 51 52 return (mem); 53 } 54 55 void * 56 xcalloc(size_t size) 57 { 58 void *mem; 59 60 mem = xmalloc(size); 61 bzero(mem, size); 62 63 return (mem); 64 } 65 66 char * 67 xstrdup(const char *str) 68 { 69 char *newstr; 70 71 if ((newstr = strdup(str)) == NULL) 72 memory_bailout(); 73 74 return (newstr); 75 } 76 77 char * 78 xstrndup(char *str, size_t len) 79 { 80 char *newstr; 81 82 if ((newstr = malloc(len + 1)) == NULL) 83 memory_bailout(); 84 85 (void) strncpy(newstr, str, len); 86 newstr[len] = '\0'; 87 88 return (newstr); 89 } 90 91 void * 92 xrealloc(void *ptr, size_t size) 93 { 94 void *mem; 95 96 if ((mem = realloc(ptr, size)) == NULL) 97 memory_bailout(); 98 99 return (mem); 100 } 101