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 /* Copyright (c) 1988 AT&T */
23*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */
24*7c478bd9Sstevel@tonic-gate
25*7c478bd9Sstevel@tonic-gate
26*7c478bd9Sstevel@tonic-gate /*
27*7c478bd9Sstevel@tonic-gate * Copyright (c) 1999 by Sun Microsystems, Inc.
28*7c478bd9Sstevel@tonic-gate * All rights reserved.
29*7c478bd9Sstevel@tonic-gate */
30*7c478bd9Sstevel@tonic-gate
31*7c478bd9Sstevel@tonic-gate /* memory allocation functions */
32*7c478bd9Sstevel@tonic-gate
33*7c478bd9Sstevel@tonic-gate #include <stdio.h>
34*7c478bd9Sstevel@tonic-gate #include <string.h>
35*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
36*7c478bd9Sstevel@tonic-gate
37*7c478bd9Sstevel@tonic-gate extern char *argv0; /* command name (must be set in main function) */
38*7c478bd9Sstevel@tonic-gate
39*7c478bd9Sstevel@tonic-gate char *stralloc(char *s);
40*7c478bd9Sstevel@tonic-gate void *mymalloc(size_t size);
41*7c478bd9Sstevel@tonic-gate void *mycalloc(size_t nelem, size_t size);
42*7c478bd9Sstevel@tonic-gate void *myrealloc(void *p, size_t size);
43*7c478bd9Sstevel@tonic-gate static void *alloctest(void *p);
44*7c478bd9Sstevel@tonic-gate
45*7c478bd9Sstevel@tonic-gate /* allocate a string */
46*7c478bd9Sstevel@tonic-gate
47*7c478bd9Sstevel@tonic-gate char *
stralloc(char * s)48*7c478bd9Sstevel@tonic-gate stralloc(char *s)
49*7c478bd9Sstevel@tonic-gate {
50*7c478bd9Sstevel@tonic-gate return (strcpy(mymalloc(strlen(s) + 1), s));
51*7c478bd9Sstevel@tonic-gate }
52*7c478bd9Sstevel@tonic-gate
53*7c478bd9Sstevel@tonic-gate /* version of malloc that only returns if successful */
54*7c478bd9Sstevel@tonic-gate
55*7c478bd9Sstevel@tonic-gate void *
mymalloc(size_t size)56*7c478bd9Sstevel@tonic-gate mymalloc(size_t size)
57*7c478bd9Sstevel@tonic-gate {
58*7c478bd9Sstevel@tonic-gate return (alloctest(malloc(size)));
59*7c478bd9Sstevel@tonic-gate }
60*7c478bd9Sstevel@tonic-gate
61*7c478bd9Sstevel@tonic-gate /* version of calloc that only returns if successful */
62*7c478bd9Sstevel@tonic-gate
63*7c478bd9Sstevel@tonic-gate void *
mycalloc(size_t nelem,size_t size)64*7c478bd9Sstevel@tonic-gate mycalloc(size_t nelem, size_t size)
65*7c478bd9Sstevel@tonic-gate {
66*7c478bd9Sstevel@tonic-gate return (alloctest(calloc(nelem, size)));
67*7c478bd9Sstevel@tonic-gate }
68*7c478bd9Sstevel@tonic-gate
69*7c478bd9Sstevel@tonic-gate /* version of realloc that only returns if successful */
70*7c478bd9Sstevel@tonic-gate
71*7c478bd9Sstevel@tonic-gate void *
myrealloc(void * p,size_t size)72*7c478bd9Sstevel@tonic-gate myrealloc(void *p, size_t size)
73*7c478bd9Sstevel@tonic-gate {
74*7c478bd9Sstevel@tonic-gate return (alloctest(realloc(p, size)));
75*7c478bd9Sstevel@tonic-gate }
76*7c478bd9Sstevel@tonic-gate
77*7c478bd9Sstevel@tonic-gate /* check for memory allocation failure */
78*7c478bd9Sstevel@tonic-gate
79*7c478bd9Sstevel@tonic-gate static void *
alloctest(void * p)80*7c478bd9Sstevel@tonic-gate alloctest(void *p)
81*7c478bd9Sstevel@tonic-gate {
82*7c478bd9Sstevel@tonic-gate if (p == NULL) {
83*7c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "\n%s: out of storage\n", argv0);
84*7c478bd9Sstevel@tonic-gate exit(1);
85*7c478bd9Sstevel@tonic-gate }
86*7c478bd9Sstevel@tonic-gate return (p);
87*7c478bd9Sstevel@tonic-gate }
88