Converting an SDP Session Structure to a String

The sdp_session_to_str() function returns the string representation of the SDP session structure that is specified by the session parameter. The sdp_session_to_str() function appends a carriage return/line feed to the end of each SDP field before appending the field to the string.

Return Values: The sdp_session_to_str() function returns the string representation of the SDP session structure upon completing successfully. The sdp_session_to_str() function returns NULL in all other cases. The sdp_session_to_str() function returns an error pointer to EINVAL when the input is null. The sdp_session_to_str() function returns an error pointer to ENOMEM when a memory allocation failure occurs. The value of errno does not change in the event of an error.