make_malloc.c revision 256281
178189Sbrian/*	$NetBSD: make_malloc.c,v 1.10 2012/06/20 17:46:28 sjg Exp $	*/
278189Sbrian
378189Sbrian/*-
478189Sbrian * Copyright (c) 2009 The NetBSD Foundation, Inc.
578189Sbrian * All rights reserved.
66059Samurai *
778189Sbrian * Redistribution and use in source and binary forms, with or without
878189Sbrian * modification, are permitted provided that the following conditions
978189Sbrian * are met:
1078189Sbrian * 1. Redistributions of source code must retain the above copyright
1178189Sbrian *    notice, this list of conditions and the following disclaimer.
1278189Sbrian * 2. Redistributions in binary form must reproduce the above copyright
1378189Sbrian *    notice, this list of conditions and the following disclaimer in the
1478189Sbrian *    documentation and/or other materials provided with the distribution.
156059Samurai *
1678189Sbrian * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1778189Sbrian * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1878189Sbrian * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1978189Sbrian * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
2078189Sbrian * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
2178189Sbrian * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
2278189Sbrian * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
2378189Sbrian * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
2478189Sbrian * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
2578189Sbrian * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2678189Sbrian * POSSIBILITY OF SUCH DAMAGE.
276059Samurai */
2850479Speter
296059Samurai#ifdef MAKE_NATIVE
306059Samurai#include <sys/cdefs.h>
3149140Sbrian__RCSID("$NetBSD: make_malloc.c,v 1.10 2012/06/20 17:46:28 sjg Exp $");
326059Samurai#endif
336059Samurai
346059Samurai#include <stdio.h>
3549140Sbrian#include <stdlib.h>
366059Samurai#include <string.h>
3747648Sbrian#include <errno.h>
3847648Sbrian
3947648Sbrian#include "make.h"
4081634Sbrian
4181634Sbrian#ifndef USE_EMALLOC
4281634Sbrianstatic void enomem(void) MAKE_ATTR_DEAD;
4381634Sbrian
4481634Sbrian/*
4547648Sbrian * enomem --
4649140Sbrian *	die when out of memory.
4749140Sbrian */
4849140Sbrianstatic void
4949140Sbrianenomem(void)
5049140Sbrian{
5149140Sbrian	(void)fprintf(stderr, "%s: %s.\n", progname, strerror(ENOMEM));
5249140Sbrian	exit(2);
5349140Sbrian}
5449140Sbrian
556059Samurai/*
5681634Sbrian * bmake_malloc --
5781634Sbrian *	malloc, but die on error.
5849140Sbrian */
5949140Sbrianvoid *
6058073Sbrianbmake_malloc(size_t len)
6158073Sbrian{
6249140Sbrian	void *p;
6349140Sbrian
6449140Sbrian	if ((p = malloc(len)) == NULL)
6549140Sbrian		enomem();
6681634Sbrian	return(p);
6781634Sbrian}
6849140Sbrian
6949140Sbrian/*
7062977Sbrian * bmake_strdup --
716059Samurai *	strdup, but die on error.
726059Samurai */
7349140Sbrianchar *
746059Samuraibmake_strdup(const char *str)
7549140Sbrian{
7649140Sbrian	size_t len;
7749140Sbrian	char *p;
7849140Sbrian
7949140Sbrian	len = strlen(str) + 1;
8036285Sbrian	if ((p = malloc(len)) == NULL)
8136285Sbrian		enomem();
8236285Sbrian	return memcpy(p, str, len);
8336285Sbrian}
8436285Sbrian
8536285Sbrian/*
8636285Sbrian * bmake_strndup --
8749140Sbrian *	strndup, but die on error.
887001Samurai */
897001Samuraichar *
907001Samuraibmake_strndup(const char *str, size_t max_len)
917001Samurai{
926059Samurai	size_t len;
9336285Sbrian	char *p;
9436285Sbrian
9530715Sbrian	if (str == NULL)
9636285Sbrian		return NULL;
9736285Sbrian
98134789Sbrian	len = strlen(str);
99134789Sbrian	if (len > max_len)
10081634Sbrian		len = max_len;
10181634Sbrian	p = bmake_malloc(len + 1);
102	memcpy(p, str, len);
103	p[len] = '\0';
104
105	return(p);
106}
107
108/*
109 * bmake_realloc --
110 *	realloc, but die on error.
111 */
112void *
113bmake_realloc(void *ptr, size_t size)
114{
115	if ((ptr = realloc(ptr, size)) == NULL)
116		enomem();
117	return(ptr);
118}
119#endif
120