Function nginx::DSA_meth_get_bn_mod_exp

pub unsafe extern "C" fn DSA_meth_get_bn_mod_exp(
    dsam: *const DSA_METHOD
) -> Option<unsafe extern "C" fn(dsam: *mut DSA, arg1: *mut BIGNUM, arg2: *const BIGNUM, arg3: *const BIGNUM, arg4: *const BIGNUM, arg5: *mut BN_CTX, arg6: *mut BN_MONT_CTX) -> c_int>