1 /* $NetBSD: store-int.c,v 1.2 2017/01/28 21:31:49 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997-2008 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "krb5_locl.h"
37
38 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
_krb5_put_int(void * buffer,uint64_t value,size_t size)39 _krb5_put_int(void *buffer, uint64_t value, size_t size)
40 {
41 unsigned char *p = buffer;
42 int i;
43 for (i = size - 1; i >= 0; i--) {
44 p[i] = value & 0xff;
45 value >>= 8;
46 }
47 return size;
48 }
49
50 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
_krb5_get_int64(void * buffer,uint64_t * value,size_t size)51 _krb5_get_int64(void *buffer, uint64_t *value, size_t size)
52 {
53 unsigned char *p = buffer;
54 unsigned long v = 0;
55 size_t i;
56 for (i = 0; i < size; i++)
57 v = (v << 8) + p[i];
58 *value = v;
59 return size;
60 }
61
62 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
_krb5_get_int(void * buffer,unsigned long * value,size_t size)63 _krb5_get_int(void *buffer, unsigned long *value, size_t size)
64 {
65 uint64_t v64;
66 krb5_ssize_t bytes = _krb5_get_int64(buffer, &v64, size);
67 *value = v64;
68 return bytes;
69 }
70