New function stty_default to handle default tty settings.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@208 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/login/stty_default.c

@@ -0,0 +1,65 @@
+#include "bsd_locl.h"
+
+#include <termios.h>
+
+/* HP-UX 9.0 termios doesn't define these */
+#ifndef FLUSHO
+#define	FLUSHO	0
+#endif
+
+#ifndef XTABS
+#define	XTABS	0
+#endif
+
+#ifndef OXTABS
+#define OXTABS	XTABS
+#endif
+
+/* Ultrix... */
+#ifndef ECHOPRT
+#define ECHOPRT	0
+#endif
+
+#ifndef ECHOCTL
+#define ECHOCTL	0
+#endif
+
+#ifndef ECHOKE
+#define ECHOKE	0
+#endif
+
+#ifndef IMAXBEL
+#define IMAXBEL	0
+#endif
+
+#define Ctl(x) ((x) ^ 0100)
+
+void
+stty_default(void)
+{
+    struct	termios termios;
+
+    /*
+     * Finalize the terminal settings. Some systems default to 8 bits,
+     * others to 7, so we should leave that alone.
+     */
+    tcgetattr(0, &termios);
+
+    termios.c_iflag |= (BRKINT|IGNPAR|ICRNL|IXON|IMAXBEL);
+    termios.c_iflag &= ~IXANY;
+
+    termios.c_lflag |= (ISIG|IEXTEN|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOKE);
+    termios.c_lflag &= ~(ECHOPRT|TOSTOP|FLUSHO);
+
+    termios.c_oflag |= (OPOST|ONLCR);
+    termios.c_oflag &= ~OXTABS;
+
+    termios.c_cc[VINTR] = Ctl('C');
+    termios.c_cc[VERASE] = Ctl('H');
+    termios.c_cc[VKILL] = Ctl('U');
+    termios.c_cc[VEOF] = Ctl('D');
+
+    termios.c_cc[VSUSP] = Ctl('Z');
+    
+    (void)tcsetattr(0, TCSANOW, &termios);
+}