krb5_decrypt_iov_ivec
ret = krb5_decrypt_iov_ivec(context, ctx->crypto, usage, data, i, NULL);
ret = krb5_decrypt_iov_ivec(context, crypto, usage,
ret = krb5_decrypt_iov_ivec(context, crypto, usage,
ret = krb5_decrypt_iov_ivec(context, crypto, 7,
ret = krb5_decrypt_iov_ivec(context, crypto, 7,
krb5_decrypt_iov_ivec (