xref: /titanic_52/usr/src/cmd/backup/lib/memutils.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
30*7c478bd9Sstevel@tonic-gate #include <errno.h>
31*7c478bd9Sstevel@tonic-gate #include <libintl.h>
32*7c478bd9Sstevel@tonic-gate #include <string.h>
33*7c478bd9Sstevel@tonic-gate #include "memutils.h"
34*7c478bd9Sstevel@tonic-gate 
35*7c478bd9Sstevel@tonic-gate extern void msg(const char *, ...);
36*7c478bd9Sstevel@tonic-gate extern void dumpabort(void);
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate void *
39*7c478bd9Sstevel@tonic-gate xmalloc(bytes)
40*7c478bd9Sstevel@tonic-gate 	size_t bytes;
41*7c478bd9Sstevel@tonic-gate {
42*7c478bd9Sstevel@tonic-gate 	void *cp;
43*7c478bd9Sstevel@tonic-gate 
44*7c478bd9Sstevel@tonic-gate 	cp = malloc(bytes);
45*7c478bd9Sstevel@tonic-gate 	if (cp == NULL) {
46*7c478bd9Sstevel@tonic-gate 		int saverr = errno;
47*7c478bd9Sstevel@tonic-gate 		msg(gettext("Cannot allocate memory: %s\n"), strerror(saverr));
48*7c478bd9Sstevel@tonic-gate 		dumpabort();
49*7c478bd9Sstevel@tonic-gate 	}
50*7c478bd9Sstevel@tonic-gate 	return (cp);
51*7c478bd9Sstevel@tonic-gate }
52*7c478bd9Sstevel@tonic-gate 
53*7c478bd9Sstevel@tonic-gate void *
54*7c478bd9Sstevel@tonic-gate xcalloc(nelem, size)
55*7c478bd9Sstevel@tonic-gate 	size_t nelem;
56*7c478bd9Sstevel@tonic-gate 	size_t size;
57*7c478bd9Sstevel@tonic-gate {
58*7c478bd9Sstevel@tonic-gate 	void *cp;
59*7c478bd9Sstevel@tonic-gate 
60*7c478bd9Sstevel@tonic-gate 	cp = calloc(nelem, size);
61*7c478bd9Sstevel@tonic-gate 	if (cp == NULL) {
62*7c478bd9Sstevel@tonic-gate 		int saverr = errno;
63*7c478bd9Sstevel@tonic-gate 		msg(gettext("Cannot allocate memory: %s\n"), strerror(saverr));
64*7c478bd9Sstevel@tonic-gate 		dumpabort();
65*7c478bd9Sstevel@tonic-gate 	}
66*7c478bd9Sstevel@tonic-gate 	return (cp);
67*7c478bd9Sstevel@tonic-gate }
68*7c478bd9Sstevel@tonic-gate 
69*7c478bd9Sstevel@tonic-gate void *
70*7c478bd9Sstevel@tonic-gate xrealloc(allocated, newsize)
71*7c478bd9Sstevel@tonic-gate 	void *allocated;
72*7c478bd9Sstevel@tonic-gate 	size_t newsize;
73*7c478bd9Sstevel@tonic-gate {
74*7c478bd9Sstevel@tonic-gate 	void *cp;
75*7c478bd9Sstevel@tonic-gate 
76*7c478bd9Sstevel@tonic-gate 	/* LINTED realloc knows what to do with a NULL pointer */
77*7c478bd9Sstevel@tonic-gate 	cp = realloc(allocated, newsize);
78*7c478bd9Sstevel@tonic-gate 	if (cp == NULL) {
79*7c478bd9Sstevel@tonic-gate 		int saverr = errno;
80*7c478bd9Sstevel@tonic-gate 		msg(gettext("Cannot allocate memory: %s\n"), strerror(saverr));
81*7c478bd9Sstevel@tonic-gate 		dumpabort();
82*7c478bd9Sstevel@tonic-gate 	}
83*7c478bd9Sstevel@tonic-gate 	return (cp);
84*7c478bd9Sstevel@tonic-gate }
85