| /* 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@iahu.ca, http://libtomcrypt.org |
| */ |
| |
| #include "mycrypt.h" |
| |
| #ifdef CFB |
| |
| int cfb_getiv(unsigned char *IV, unsigned long *len, symmetric_CFB *cfb) |
| { |
| _ARGCHK(IV != NULL); |
| _ARGCHK(len != NULL); |
| _ARGCHK(cfb != NULL); |
| if ((unsigned long)cfb->blocklen > *len) { |
| return CRYPT_BUFFER_OVERFLOW; |
| } |
| XMEMCPY(IV, cfb->IV, cfb->blocklen); |
| *len = cfb->blocklen; |
| |
| return CRYPT_OK; |
| } |
| |
| #endif |