1/* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
10 */
11#include "tomcrypt.h"
12
13/**
14  @file der_encode_boolean.c
15  ASN.1 DER, encode a BOOLEAN, Tom St Denis
16*/
17
18
19#ifdef LTC_DER
20
21/**
22  Store a BOOLEAN
23  @param in       The boolean to encode
24  @param out      [out] The destination for the DER encoded BOOLEAN
25  @param outlen   [in/out] The max size and resulting size of the DER BOOLEAN
26  @return CRYPT_OK if successful
27*/
28int der_encode_boolean(int in,
29                       unsigned char *out, unsigned long *outlen)
30{
31   LTC_ARGCHK(outlen != NULL);
32   LTC_ARGCHK(out    != NULL);
33
34   if (*outlen < 3) {
35       *outlen = 3;
36       return CRYPT_BUFFER_OVERFLOW;
37   }
38
39   *outlen = 3;
40   out[0] = 0x01;
41   out[1] = 0x01;
42   out[2] = in ? 0xFF : 0x00;
43
44   return CRYPT_OK;
45}
46
47#endif
48
49/* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/boolean/der_encode_boolean.c,v $ */
50/* $Revision: 1.3 $ */
51/* $Date: 2006/06/16 21:53:41 $ */
52