Function mbedtls_sys::mbedtls_x509_set_extension

pub unsafe extern "C" fn mbedtls_x509_set_extension(
    head: *mut *mut mbedtls_asn1_named_data, 
    oid: *const c_char, 
    oid_len: size_t, 
    critical: c_int, 
    val: *const c_uchar, 
    val_len: size_t
) -> c_int