| /* 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://libtomcrypt.org |
| */ |
| #include "tomcrypt.h" |
| |
| /** |
| @file crypt_find_hash_any.c |
| Find a hash, Tom St Denis |
| */ |
| |
| /** |
| Find a hash flexibly. First by name then if not present by digest size |
| @param name The name of the hash desired |
| @param digestlen The minimum length of the digest size (octets) |
| @return >= 0 if found, -1 if not present |
| */int find_hash_any(const char *name, int digestlen) |
| { |
| int x, y, z; |
| LTC_ARGCHK(name != NULL); |
| |
| x = find_hash(name); |
| if (x != -1) return x; |
| |
| LTC_MUTEX_LOCK(<c_hash_mutex); |
| y = MAXBLOCKSIZE+1; |
| z = -1; |
| for (x = 0; x < TAB_SIZE; x++) { |
| if (hash_descriptor[x].name == NULL) { |
| continue; |
| } |
| if ((int)hash_descriptor[x].hashsize >= digestlen && (int)hash_descriptor[x].hashsize < y) { |
| z = x; |
| y = hash_descriptor[x].hashsize; |
| } |
| } |
| LTC_MUTEX_UNLOCK(<c_hash_mutex); |
| return z; |
| } |
| |
| /* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_hash_any.c,v $ */ |
| /* $Revision: 1.4 $ */ |
| /* $Date: 2005/06/19 18:00:28 $ */ |