xref: /freebsd-src/crypto/heimdal/lib/krb5/store-int.c (revision 6a068746777241722b2b32c5d0bc443a2a64d80b)
1*ae771770SStanislav Sedov /*
2*ae771770SStanislav Sedov  * Copyright (c) 1997-2008 Kungliga Tekniska Högskolan
3*ae771770SStanislav Sedov  * (Royal Institute of Technology, Stockholm, Sweden).
4*ae771770SStanislav Sedov  * All rights reserved.
5*ae771770SStanislav Sedov  *
6*ae771770SStanislav Sedov  * Redistribution and use in source and binary forms, with or without
7*ae771770SStanislav Sedov  * modification, are permitted provided that the following conditions
8*ae771770SStanislav Sedov  * are met:
9*ae771770SStanislav Sedov  *
10*ae771770SStanislav Sedov  * 1. Redistributions of source code must retain the above copyright
11*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer.
12*ae771770SStanislav Sedov  *
13*ae771770SStanislav Sedov  * 2. Redistributions in binary form must reproduce the above copyright
14*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer in the
15*ae771770SStanislav Sedov  *    documentation and/or other materials provided with the distribution.
16*ae771770SStanislav Sedov  *
17*ae771770SStanislav Sedov  * 3. Neither the name of the Institute nor the names of its contributors
18*ae771770SStanislav Sedov  *    may be used to endorse or promote products derived from this software
19*ae771770SStanislav Sedov  *    without specific prior written permission.
20*ae771770SStanislav Sedov  *
21*ae771770SStanislav Sedov  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22*ae771770SStanislav Sedov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23*ae771770SStanislav Sedov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24*ae771770SStanislav Sedov  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25*ae771770SStanislav Sedov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26*ae771770SStanislav Sedov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27*ae771770SStanislav Sedov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*ae771770SStanislav Sedov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29*ae771770SStanislav Sedov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30*ae771770SStanislav Sedov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31*ae771770SStanislav Sedov  * SUCH DAMAGE.
32*ae771770SStanislav Sedov  */
33*ae771770SStanislav Sedov 
34*ae771770SStanislav Sedov #include "krb5_locl.h"
35*ae771770SStanislav Sedov 
36*ae771770SStanislav Sedov KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
_krb5_put_int(void * buffer,unsigned long value,size_t size)37*ae771770SStanislav Sedov _krb5_put_int(void *buffer, unsigned long value, size_t size)
38*ae771770SStanislav Sedov {
39*ae771770SStanislav Sedov     unsigned char *p = buffer;
40*ae771770SStanislav Sedov     int i;
41*ae771770SStanislav Sedov     for (i = size - 1; i >= 0; i--) {
42*ae771770SStanislav Sedov 	p[i] = value & 0xff;
43*ae771770SStanislav Sedov 	value >>= 8;
44*ae771770SStanislav Sedov     }
45*ae771770SStanislav Sedov     return size;
46*ae771770SStanislav Sedov }
47*ae771770SStanislav Sedov 
48*ae771770SStanislav Sedov KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
_krb5_get_int(void * buffer,unsigned long * value,size_t size)49*ae771770SStanislav Sedov _krb5_get_int(void *buffer, unsigned long *value, size_t size)
50*ae771770SStanislav Sedov {
51*ae771770SStanislav Sedov     unsigned char *p = buffer;
52*ae771770SStanislav Sedov     unsigned long v = 0;
53*ae771770SStanislav Sedov     size_t i;
54*ae771770SStanislav Sedov     for (i = 0; i < size; i++)
55*ae771770SStanislav Sedov 	v = (v << 8) + p[i];
56*ae771770SStanislav Sedov     *value = v;
57*ae771770SStanislav Sedov     return size;
58*ae771770SStanislav Sedov }
59