2 * Copyright (c) 2010 Your File System Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 _afscrypto_calloc(int num, size_t len)
32 ptr = afs_osi_Alloc(num * len);
38 _afscrypto_malloc(size_t len)
42 ptr = afs_osi_Alloc(len);
48 _afscrypto_free(void *ptr)
55 _afscrypto_strdup(const char *str) {
58 ptr = malloc(strlen(str));
61 memcpy(ptr, str, strlen(str));
66 /* This is a horrible, horrible bodge, but the crypto code uses realloc,
67 * so we need to handle it too.
69 * There are two different call sites for realloc. Firstly, it's used
70 * in the decrypt case to shrink the size of the allotted buffer. In
71 * this case, we can just ignore the realloc and return the original
74 * Secondly, it's used when computing derived keys. In this case, the
75 * first call will be with a NULL input, and the size of a single
76 * derived key. So, we just give back space for 20 keys, and pray.
80 _afscrypto_realloc(void *ptr, size_t len) {
82 return calloc(20, len);