Function PKCS7_sign_ex

pub unsafe extern "C" fn PKCS7_sign_ex(
    signcert: *mut x509_st,
    pkey: *mut evp_pkey_st,
    certs: *mut stack_st_X509,
    data: *mut bio_st,
    flags: i32,
    libctx: *mut ossl_lib_ctx_st,
    propq: *const i8,
) -> *mut pkcs7_st