-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 You cannot. Just use fixed port numbers. Martin On 14/11/14 15:41, xreborner (Shixi Chen) wrote: > I tried to repeat calling nn_bind on random port. However, it just > aborts if the port is already in use, rather than returning > *EADDRINUSE*. I also tried to use the latest code from github. It > doesn't abort, but it doesn't return an error code either. Anyway > to solve this problem? > > Thanks. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAEBAgAGBQJUZhUzAAoJENTpVjxCNN9YSdwH/Rl/PM//WT4aan4UDySHRtEX ezMo+LgR04dYckF9amSNcNLXdnt6NwUVHOvs/+IeBVhBqyoMgevc4hfB1Kb4iVxQ /Rrbjlq6/3IWQexfaXON3gjVNfUjTq6jsmVOaKeQa7ev0cTW9UDLb3FHgS3WsLq8 XxKW2WEwWUPSOPTwTejXxZehSVWhcrmuwRvM3UKO+dTjLzk4jfFO5AARDnW2W+6l 5mI8epP2M9kS8BZ6zTUZh8BYN6OhWDDmEVvF32dnB1TXYfB8Jw1h8qN/Q8/RjQmt 0AbOht61n8zkYNOwtEx0bhSEnkUudGHZmoLO0C5GNswkS/t9uBJOYkHqEIapjpo= =dwWO -----END PGP SIGNATURE-----