/* 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 OFBint ofb_getiv(unsigned char *IV, unsigned long *len, symmetric_OFB *ofb){   _ARGCHK(IV  != NULL);   _ARGCHK(len != NULL);   _ARGCHK(ofb != NULL);   if ((unsigned long)ofb->blocklen > *len) {      return CRYPT_BUFFER_OVERFLOW;   }   memcpy(IV, ofb->IV, ofb->blocklen);   *len = ofb->blocklen;   return CRYPT_OK;}#endif