--- net-tools-1.60/slattach.c	2011-08-18 21:39:28.780454378 +0200
+++ net-tools-1.60-patch/slattach.c	2011-08-18 21:42:15.666356007 +0200
@@ -101,6 +101,9 @@
 #ifdef B115200
   { "115200",	B115200	},
 #endif
+#ifdef B500000
+  { "500000",   B500000 },  
+#endif
   { NULL,	0	}
 };
 struct termios	tty_saved,		/* saved TTY device state	*/
@@ -111,6 +114,7 @@
 int		opt_c = 0;		/* "command" to run at exit	*/
 int		opt_e = 0;		/* "activate only" flag		*/
 int		opt_h = 0;		/* "hangup" on carrier loss	*/
+int		opt_H = 0;		/* no "hangup" control 		*/
 #ifdef SIOCSKEEPALIVE
 int		opt_k = 0;		/* "keepalive" value		*/
 #endif
@@ -342,7 +346,9 @@
   tty->c_oflag = (0);				/* output flags		*/
   tty->c_lflag = (0);				/* local flags		*/
   speed = (tty->c_cflag & CBAUD);		/* save current speed	*/
-  tty->c_cflag = (HUPCL | CREAD);		/* UART flags		*/
+  tty->c_cflag = CREAD;				/* UART flags		*/
+  if (!opt_H)
+	tty->c_cflag |= HUPCL;
   if (opt_L) 
 	tty->c_cflag |= CLOCAL;
   else
@@ -600,7 +606,7 @@
 
   /* Scan command line for any arguments. */
   opterr = 0;
-  while ((s = getopt_long(argc, argv, "c:ehlLmnp:qs:vdVk:o:", longopts, NULL)) != EOF) switch(s) {
+  while ((s = getopt_long(argc, argv, "c:ehHlLmnp:qs:vdVk:o:", longopts, NULL)) != EOF) switch(s) {
 	case 'c':
 		extcmd = optarg;
 		break;
@@ -613,6 +619,10 @@
 		opt_h = 1 - opt_h;
 		break;
 
+	case 'H':
+		opt_H = 1 - opt_H;
+		break;
+
 #ifdef SIOCSKEEPALIVE
 	case 'k':
 		opt_k = atoi(optarg);