1 files changed, 49 insertions, 0 deletions
diff --git a/src/appl/libpty/void_assoc.c b/src/appl/libpty/void_assoc.c
new file mode 100644
index 000000000..a39c9c723
--- /dev/null
+++ b/src/appl/libpty/void_assoc.c
@@ -0,0 +1,49 @@
+/*
+ * ptyint_void_association(): Void association with controlling terminal
+ *
+ * Copyright 1995, 1996 by the Massachusetts Institute of Technology.
+ *
+ * 
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and without fee is hereby
+ * granted, provided that the above copyright notice appear in all
+ * copies and that both that copyright notice and this permission
+ * notice appear in supporting documentation, and that the name of
+ * M.I.T. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability
+ * of this software for any purpose.  It is provided "as is" without
+ * express or implied warranty.
+ * 
+ */
+
+#include "com_err.h"
+#include "libpty.h"
+#include "pty-int.h"
+
+/*
+ * This function gets called to set up the current process as a
+ * session leader (hence, can't be called except from a process that
+ * isn't already a session leader) and dissociates the controlling
+ * terminal (if any) from the session.
+ */
+long
+ptyint_void_association(void)
+{
+    int fd;
+#ifdef HAVE_SETSID
+    (void) setsid();
+#endif
+    /* Void tty association first */
+#ifdef TIOCNOTTY
+    fd = open("/dev/tty", O_RDWR);
+    if (fd >= 0) {
+	ioctl(fd, TIOCNOTTY, 0);
+	close(fd);
+    }
+#endif
+    return 0;
+}