Function nginx::EVP_PKEY_meth_get_verifyctx

pub unsafe extern "C" fn EVP_PKEY_meth_get_verifyctx(
    pmeth: *mut EVP_PKEY_METHOD, 
    pverifyctx_init: *mut Option<unsafe extern "C" fn(ctx: *mut EVP_PKEY_CTX, mctx: *mut EVP_MD_CTX) -> c_int>, 
    pverifyctx: *mut Option<unsafe extern "C" fn(ctx: *mut EVP_PKEY_CTX, sig: *const c_uchar, siglen: c_int, mctx: *mut EVP_MD_CTX) -> c_int>
)