diff -up netkit-telnet-0.17/telnet/sys_bsd.c.errnosysbsd netkit-telnet-0.17/telnet/sys_bsd.c

--- netkit-telnet-0.17/telnet/sys_bsd.c.errnosysbsd	2007-09-20 10:57:58.000000000 +0200

+++ netkit-telnet-0.17/telnet/sys_bsd.c	2007-09-20 11:10:08.000000000 +0200

@@ -375,6 +375,7 @@ TerminalNewMode(int f)

     int onoff;

     int old;

     cc_t esc;

+    int err;

     globalmode = f&~MODE_FORCE;

     if (prevmode == f)

@@ -407,6 +408,12 @@ TerminalNewMode(int f)

 	    tcsetattr(tin, TCSADRAIN, &tmp_tc);

 #endif	/* USE_TERMIO */

 	    old = ttyflush(SYNCHing|flushout);

+            if (old < 0) {

+	      err = errno;

+              if (! ((err == EINTR) || (err == EAGAIN) || (err == ENOSPC))) {

+                break;

+              }

+            }

 	} while (old < 0 || old > 1);

     }