tm.tv_sec = timeout; tm.tv_usec = 0; setsockopt(*sock,SOL_SOCKET,SO_SNDTIMEO,(void *) &tm,sizeof(struct timeval)); setsockopt(*sock,SOL_SOCKET,SO_RCVTIMEO,(void *) &tm,sizeof(struct timeval)); select を使わないならこっちで。 SO_RCVTIMEO が…

$ telnet xxx.xxx.xxx.xxx 110 Trying xxx.xxx.xxx.xxx... Connected to xxx.xxx.xxx.xxx. Escape character is '^]'. +OK hello from popgate(2.35.4_1) USER username +OK password required. PASS password +OK maildrop ready, 33 messages (252251 octe…