src/ltc/misc/crypt/crypt_find_hash.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 *
 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
 */
#include "tomcrypt.h"

/**
  @file crypt_find_hash.c
  Find a hash, Tom St Denis
*/

/**
   Find a registered hash by name
   @param name   The name of the hash to look for
   @return >= 0 if found, -1 if not present
*/
int find_hash(const char *name)
{
   int x;
   LTC_ARGCHK(name != NULL);
   LTC_MUTEX_LOCK(&ltc_hash_mutex);
   for (x = 0; x < TAB_SIZE; x++) {
       if (hash_descriptor[x].name != NULL && XSTRCMP(hash_descriptor[x].name, name) == 0) {
          LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
          return x;
       }
   }
   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
   return -1;
}

/* $Source$ */
/* $Revision$ */
/* $Date$ */