[Linphone-developers] ortp: using port used by other process

[Petr Kuba]

Hello,

We met the following problem with ortp in our application: if the local 
port we want to use is already used by some other process no error is 
reported. Therefore we do not hear any audio without being informed 
about the problem.

We believe that this is caused by the following line in the 
create_and_bind() function:

err = setsockopt (sock, SOL_SOCKET, SO_REUSEADDR,
                (SOCKET_OPTION_VALUE)&optval, sizeof (optval));

The create_and_bind() function is called from the 
rtp_session_set_local_addr() function.

We met this problem in ortp 0.13.1 (under Windows XP) but after quick 
check it looks like the same would happen with 0.15.0.

Could you explain us why SO_REUSEADDR option is used and suggest some 
way to detect problems? Our idea is to make use of SO_REUSEADDR 
configurable.

Thanks,
Petr


--
   Petr Kuba, Project Manager
   OptimSys, s.r.o
   address@hidden
   Tel: +420 541 143 065
   Fax: +420 541 143 066
   http://www.optimsys.cz