sec_write
res = sec_write (fileno (to), chunk, len);
werr = sec_write (fileno (to), buf, n);
sec_write(fileno(F), out_buffer.data, out_buffer.index);
sec_write(fileno(F), out_buffer.data, out_buffer.index);
int sec_write (int, char *, int);
sec_write(fileno(outstr), chunk + restart_point, cnt);
sec_write(netfd, buf, cnt) == cnt) {
sec_write(fileno(dout), buf, strlen(buf));
sec_write(fileno(dout), buf, strlen(buf));
sec_write(fileno(dout), buf, 0); /* XXX flush */
sec_write(fileno(F), out_buffer.data, out_buffer.index);
sec_write(fileno(F), out_buffer.data, out_buffer.index);