xref: /illumos-gate/usr/src/cmd/backup/lib/memutils.c (revision 2a8bcb4e)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1998 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate  * All rights reserved.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
28*7c478bd9Sstevel@tonic-gate #include <errno.h>
29*7c478bd9Sstevel@tonic-gate #include <libintl.h>
30*7c478bd9Sstevel@tonic-gate #include <string.h>
31*7c478bd9Sstevel@tonic-gate #include "memutils.h"
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate extern void msg(const char *, ...);
34*7c478bd9Sstevel@tonic-gate extern void dumpabort(void);
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate void *
xmalloc(bytes)37*7c478bd9Sstevel@tonic-gate xmalloc(bytes)
38*7c478bd9Sstevel@tonic-gate 	size_t bytes;
39*7c478bd9Sstevel@tonic-gate {
40*7c478bd9Sstevel@tonic-gate 	void *cp;
41*7c478bd9Sstevel@tonic-gate 
42*7c478bd9Sstevel@tonic-gate 	cp = malloc(bytes);
43*7c478bd9Sstevel@tonic-gate 	if (cp == NULL) {
44*7c478bd9Sstevel@tonic-gate 		int saverr = errno;
45*7c478bd9Sstevel@tonic-gate 		msg(gettext("Cannot allocate memory: %s\n"), strerror(saverr));
46*7c478bd9Sstevel@tonic-gate 		dumpabort();
47*7c478bd9Sstevel@tonic-gate 	}
48*7c478bd9Sstevel@tonic-gate 	return (cp);
49*7c478bd9Sstevel@tonic-gate }
50*7c478bd9Sstevel@tonic-gate 
51*7c478bd9Sstevel@tonic-gate void *
xcalloc(nelem,size)52*7c478bd9Sstevel@tonic-gate xcalloc(nelem, size)
53*7c478bd9Sstevel@tonic-gate 	size_t nelem;
54*7c478bd9Sstevel@tonic-gate 	size_t size;
55*7c478bd9Sstevel@tonic-gate {
56*7c478bd9Sstevel@tonic-gate 	void *cp;
57*7c478bd9Sstevel@tonic-gate 
58*7c478bd9Sstevel@tonic-gate 	cp = calloc(nelem, size);
59*7c478bd9Sstevel@tonic-gate 	if (cp == NULL) {
60*7c478bd9Sstevel@tonic-gate 		int saverr = errno;
61*7c478bd9Sstevel@tonic-gate 		msg(gettext("Cannot allocate memory: %s\n"), strerror(saverr));
62*7c478bd9Sstevel@tonic-gate 		dumpabort();
63*7c478bd9Sstevel@tonic-gate 	}
64*7c478bd9Sstevel@tonic-gate 	return (cp);
65*7c478bd9Sstevel@tonic-gate }
66*7c478bd9Sstevel@tonic-gate 
67*7c478bd9Sstevel@tonic-gate void *
xrealloc(allocated,newsize)68*7c478bd9Sstevel@tonic-gate xrealloc(allocated, newsize)
69*7c478bd9Sstevel@tonic-gate 	void *allocated;
70*7c478bd9Sstevel@tonic-gate 	size_t newsize;
71*7c478bd9Sstevel@tonic-gate {
72*7c478bd9Sstevel@tonic-gate 	void *cp;
73*7c478bd9Sstevel@tonic-gate 
74*7c478bd9Sstevel@tonic-gate 	/* LINTED realloc knows what to do with a NULL pointer */
75*7c478bd9Sstevel@tonic-gate 	cp = realloc(allocated, newsize);
76*7c478bd9Sstevel@tonic-gate 	if (cp == NULL) {
77*7c478bd9Sstevel@tonic-gate 		int saverr = errno;
78*7c478bd9Sstevel@tonic-gate 		msg(gettext("Cannot allocate memory: %s\n"), strerror(saverr));
79*7c478bd9Sstevel@tonic-gate 		dumpabort();
80*7c478bd9Sstevel@tonic-gate 	}
81*7c478bd9Sstevel@tonic-gate 	return (cp);
82*7c478bd9Sstevel@tonic-gate }
83