A possible hang bug in Telnet

[Meng Ruijie]

Dear Sir/Madam,

Sorry to bother you. During testing the Inetutils telnet, I found a likely hang bug. Hope you could have a check.

After telnet is connected with a telnet server, a telnet server is crashed, and then telnet will be blocked forever. The reason seems that the function select() in sys_bsd.c doesn't consider the condition of unlikely receiving data from the server. It isn't set a timeout and always waits for data coming.

Kindly have a look and looking forward to your reply.

Thanks,

Ruijie Meng