1 /* $NetBSD: make_malloc.c,v 1.14 2020/08/12 18:47:21 rillig Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 The NetBSD Foundation, Inc. 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifdef MAKE_NATIVE 30 #include <sys/cdefs.h> 31 __RCSID("$NetBSD: make_malloc.c,v 1.14 2020/08/12 18:47:21 rillig Exp $"); 32 #endif 33 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <errno.h> 38 39 #include "make.h" 40 41 #ifndef USE_EMALLOC 42 static MAKE_ATTR_DEAD void enomem(void); 43 44 /* 45 * enomem -- 46 * die when out of memory. 47 */ 48 static MAKE_ATTR_DEAD void 49 enomem(void) 50 { 51 (void)fprintf(stderr, "%s: %s.\n", progname, strerror(ENOMEM)); 52 exit(2); 53 } 54 55 /* 56 * bmake_malloc -- 57 * malloc, but die on error. 58 */ 59 void * 60 bmake_malloc(size_t len) 61 { 62 void *p; 63 64 if ((p = malloc(len)) == NULL) 65 enomem(); 66 return p; 67 } 68 69 /* 70 * bmake_strdup -- 71 * strdup, but die on error. 72 */ 73 char * 74 bmake_strdup(const char *str) 75 { 76 size_t len; 77 char *p; 78 79 len = strlen(str) + 1; 80 if ((p = malloc(len)) == NULL) 81 enomem(); 82 return memcpy(p, str, len); 83 } 84 85 /* 86 * bmake_strndup -- 87 * strndup, but die on error. 88 */ 89 char * 90 bmake_strndup(const char *str, size_t max_len) 91 { 92 size_t len; 93 char *p; 94 95 for (len = 0; len < max_len; len++) 96 if (str[len] == '\0') 97 break; 98 p = bmake_malloc(len + 1); 99 memcpy(p, str, len); 100 p[len] = '\0'; 101 102 return p; 103 } 104 105 /* 106 * bmake_realloc -- 107 * realloc, but die on error. 108 */ 109 void * 110 bmake_realloc(void *ptr, size_t size) 111 { 112 if ((ptr = realloc(ptr, size)) == NULL) 113 enomem(); 114 return ptr; 115 } 116 #endif 117