Merge pull request #16 from crispygoth/master

A couple of small fixes: closing listen sockets in child and ignoring EINTR errors from main poll

postsrsd.c

     char keybuf[1024], *key;
 
     if (poll(fds, 2, 1000) < 0) {
+      if (errno == EINTR)
+        continue;
       if (daemonize)
         syslog (LOG_MAIL | LOG_ERR, "Poll failure: %s", strerror(errno));
       else
         conn = accept(fds[i].fd, NULL, NULL);
         if (conn < 0) continue;
         if (fork() == 0) {
+          // close listen sockets so that we don't stop the main daemon process from restarting
+          close(forward_sock);
+          close(reverse_sock);
+
           fp = fdopen(conn, "r+");
           if (fp == NULL) exit(EXIT_FAILURE);
           fds[2].fd = conn;