[DHCP]
[reactos.git] / reactos / base / services / dhcp / alloc.c
1 /* $OpenBSD: alloc.c,v 1.9 2004/05/04 20:28:40 deraadt Exp $ */
2
3 /* Memory allocation... */
4
5 /*
6 * Copyright (c) 1995, 1996, 1998 The Internet Software Consortium.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of The Internet Software Consortium nor the names
19 * of its contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
23 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
24 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
27 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
30 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
33 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * This software has been written for the Internet Software Consortium
37 * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
38 * Enterprises. To learn more about the Internet Software Consortium,
39 * see ``http://www.vix.com/isc''. To learn more about Vixie
40 * Enterprises, see ``http://www.vix.com''.
41 */
42
43 #include "rosdhcp.h"
44 #include "dhcpd.h"
45
46 struct string_list *
47 new_string_list(size_t size)
48 {
49 struct string_list *rval;
50
51 rval = calloc(1, sizeof(struct string_list) + size);
52 if (rval != NULL)
53 rval->string = ((char *)rval) + sizeof(struct string_list);
54 return (rval);
55 }
56
57 struct hash_table *
58 new_hash_table(int count)
59 {
60 struct hash_table *rval;
61
62 rval = calloc(1, sizeof(struct hash_table) -
63 (DEFAULT_HASH_SIZE * sizeof(struct hash_bucket *)) +
64 (count * sizeof(struct hash_bucket *)));
65 if (rval == NULL)
66 return (NULL);
67 rval->hash_count = count;
68 return (rval);
69 }
70
71 struct hash_bucket *
72 new_hash_bucket(void)
73 {
74 struct hash_bucket *rval = calloc(1, sizeof(struct hash_bucket));
75
76 return (rval);
77 }
78
79 void
80 dfree(void *ptr, char *name)
81 {
82 if (!ptr) {
83 warning("dfree %s: free on null pointer.", name);
84 return;
85 }
86 free(ptr);
87 }
88
89 void
90 free_hash_bucket(struct hash_bucket *ptr, char *name)
91 {
92 dfree(ptr, name);
93 }