mailsrvr.c

			if(pop3_socket!=INVALID_SOCKET
				&& FD_ISSET(pop3_socket,&socket_set)) {

				client_addr_len = sizeof(client_addr);
				client_socket = accept(pop3_socket, (struct sockaddr *)&client_addr
        			,&client_addr_len);

				if(client_socket == INVALID_SOCKET)
				{
					if(ERROR_VALUE == ENOTSOCK || ERROR_VALUE == EINVAL)
            			lprintf(LOG_NOTICE,"%04d POP3 socket closed while listening",pop3_socket);
					else
						lprintf(LOG_WARNING,"%04d !ERROR %d accept failed", pop3_socket, ERROR_VALUE);
					break;
				}
				if(startup->socket_open!=NULL)
					startup->socket_open(startup->cbdata,TRUE);
				sockets++;

				if(trashcan(&scfg,inet_ntoa(client_addr.sin_addr),"ip-silent")) {
					mail_close_socket(client_socket);
					continue;
				}

				if(active_clients>=startup->max_clients) {
					lprintf(LOG_WARNING,"%04d !MAXMIMUM CLIENTS (%u) reached, access denied"
						,client_socket, startup->max_clients);
					sockprintf(client_socket,"-ERR Maximum active clients reached, please try again later.");
					mswait(3000);
					mail_close_socket(client_socket);
					continue;
				}


				l=1;

				if((i=ioctlsocket(client_socket, FIONBIO, &l))!=0) {
					lprintf(LOG_ERR,"%04d !ERROR %d (%d) disabling blocking on socket"
						,client_socket, i, ERROR_VALUE);
					sockprintf(client_socket,"-ERR System error, please try again later.");
					mswait(3000);
					mail_close_socket(client_socket);
					continue;
				}

				if((pop3=malloc(sizeof(pop3_t)))==NULL) {
					lprintf(LOG_CRIT,"%04d !ERROR allocating %u bytes of memory for pop3_t"
						,client_socket,sizeof(pop3_t));
					sockprintf(client_socket,"-ERR System error, please try again later.");
					mswait(3000);
					mail_close_socket(client_socket);
					continue;
				}

				pop3->socket=client_socket;
				pop3->client_addr=client_addr;

				_beginthread (pop3_thread, 0, pop3);
				served++;
			}
		}

		if(active_clients) {
			lprintf(LOG_DEBUG,"0000 Waiting for %d active clients to disconnect...", active_clients);
			start=time(NULL);
			while(active_clients) {
				if(time(NULL)-start>TIMEOUT_THREAD_WAIT) {
					lprintf(LOG_WARNING,"!TIMEOUT waiting for %d active clients ",active_clients);
					break;
				}
				mswait(100);
			}
		}

		if(sendmail_running) {
			mail_close_socket(server_socket);
			server_socket=INVALID_SOCKET; /* necessary to terminate sendmail_thread */
			sem_post(&sendmail_wakeup_sem);
			mswait(100);
		}
		if(sendmail_running) {
			lprintf(LOG_DEBUG,"0000 Waiting for SendMail thread to terminate...");
			start=time(NULL);
			while(sendmail_running) {
				if(time(NULL)-start>TIMEOUT_THREAD_WAIT) {
					lprintf(LOG_WARNING,"!TIMEOUT waiting for sendmail thread to "
            			"terminate");
					break;
				}
				mswait(500);
			}
		}
		if(!sendmail_running)
			sem_destroy(&sendmail_wakeup_sem);

		cleanup(0);

		if(recycle_server) {
			lprintf(LOG_INFO,"Recycling server...");
			mswait(2000);
		}

	} while(recycle_server);
}