bool warc_write_request_record (char *url, char *timestamp_str, char *concurrent_to_uuid, ip_address *ip, FILE *body, off_t payload_offset);
bool warc_write_response_record (char *url, char *timestamp_str, char *concurrent_to_uuid, ip_address *ip, FILE *body, off_t payload_offset, char *mime_type, int response_code, char *redirect_location);
bool warc_write_request_record (char *url, char *timestamp_str, char *concurrent_to_uuid, ip_address *ip, FILE *body, off_t payload_offset);
bool warc_write_response_record (char *url, char *timestamp_str, char *concurrent_to_uuid, ip_address *ip, FILE *body, off_t payload_offset, char *mime_type, int response_code, char *redirect_location);