1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
6 * The library is free for all purposes without any express
12 @file crypt_register_hash.c
13 Register a HASH, Tom St Denis
17 Register a hash with the descriptor table
18 @param hash The hash you wish to register
19 @return value >= 0 if successfully added (or already present), -1 if unsuccessful
21 int register_hash(const struct ltc_hash_descriptor *hash)
25 LTC_ARGCHK(hash != NULL);
27 /* is it already registered? */
28 LTC_MUTEX_LOCK(<c_hash_mutex);
29 for (x = 0; x < TAB_SIZE; x++) {
30 if (XMEMCMP(&hash_descriptor[x], hash, sizeof(struct ltc_hash_descriptor)) == 0) {
31 LTC_MUTEX_UNLOCK(<c_hash_mutex);
36 /* find a blank spot */
37 for (x = 0; x < TAB_SIZE; x++) {
38 if (hash_descriptor[x].name == NULL) {
39 XMEMCPY(&hash_descriptor[x], hash, sizeof(struct ltc_hash_descriptor));
40 LTC_MUTEX_UNLOCK(<c_hash_mutex);
46 LTC_MUTEX_UNLOCK(<c_hash_mutex);
50 /* ref: $Format:%D$ */
51 /* git commit: $Format:%H$ */
52 /* commit time: $Format:%ai$ */