xref: /freebsd/sbin/dhclient/alloc.c (revision 1d386b48a555f61cb7325543adbbb5c3f3407a66)
1 /*	$OpenBSD: alloc.c,v 1.9 2004/05/04 20:28:40 deraadt Exp $	*/
2 
3 /* Memory allocation... */
4 
5 /*-
6  * SPDX-License-Identifier: BSD-3-Clause
7  *
8  * Copyright (c) 1995, 1996, 1998 The Internet Software Consortium.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  *
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of The Internet Software Consortium nor the names
21  *    of its contributors may be used to endorse or promote products derived
22  *    from this software without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
25  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
26  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28  * DISCLAIMED.  IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
29  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
32  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
33  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
34  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
35  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  *
38  * This software has been written for the Internet Software Consortium
39  * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
40  * Enterprises.  To learn more about the Internet Software Consortium,
41  * see ``http://www.vix.com/isc''.  To learn more about Vixie
42  * Enterprises, see ``http://www.vix.com''.
43  */
44 
45 #include <sys/cdefs.h>
46 #include "dhcpd.h"
47 
48 struct string_list *
new_string_list(size_t size)49 new_string_list(size_t size)
50 {
51 	struct string_list *rval;
52 
53 	rval = calloc(1, sizeof(struct string_list) + size);
54 	if (rval != NULL)
55 		rval->string = ((char *)rval) + sizeof(struct string_list);
56 	return (rval);
57 }
58 
59 struct hash_table *
new_hash_table(int count)60 new_hash_table(int count)
61 {
62 	struct hash_table *rval;
63 
64 	rval = calloc(1, sizeof(struct hash_table) -
65 	    (DEFAULT_HASH_SIZE * sizeof(struct hash_bucket *)) +
66 	    (count * sizeof(struct hash_bucket *)));
67 	if (rval == NULL)
68 		return (NULL);
69 	rval->hash_count = count;
70 	return (rval);
71 }
72 
73 struct hash_bucket *
new_hash_bucket(void)74 new_hash_bucket(void)
75 {
76 	struct hash_bucket *rval = calloc(1, sizeof(struct hash_bucket));
77 
78 	return (rval);
79 }
80