Fix argument to the setsockopt, the previous code worked just because controlfd > 0 usually.
Fix argument to the setsockopt, the previous code worked just because
controlfd > 0 usually.

sippy/rtpproxy,dsanders11/rtpproxy,jevonearth/rtpproxy,synety-jdebp/rtpproxy,dsanders11/rtpproxy,jevonearth/rtpproxy,dsanders11/rtpproxy,synety-jdebp/rtpproxy,sippy/rtpproxy,sippy/rtpproxy,jevonearth/rtpproxy,jevonearth/rtpproxy,synety-jdebp/rtpproxy,synety-jdebp/rtpproxy