diff --git a/src/os9.h b/src/os9.h
index 7bb7cf3..826e0e2 100644
--- a/src/os9.h
+++ b/src/os9.h
@@ -1,10 +1,25 @@
-/*  $Revision: 1.1 $
-**
-**  Editline system header file for OS-9 (on 68k).
-*/
+/* Editline system header file for OS-9 (on 68k). 
+ *
+ * Copyright (c) 1992, 1993  Simmule Turner and Rich Salz. All rights reserved.
+ *
+ * This software is not subject to any license of the American Telephone
+ * and Telegraph Company or of the Regents of the University of California.
+ *
+ * Permission is granted to anyone to use this software for any purpose on
+ * any computer system, and to alter it and redistribute it freely, subject
+ * to the following restrictions:
+ * 1. The authors are not responsible for the consequences of use of this
+ *    software, no matter how awful, even if they arise from flaws in it.
+ * 2. The origin of this software must not be misrepresented, either by
+ *    explicit claim or by omission.  Since few users ever read sources,
+ *    credits must appear in the documentation.
+ * 3. Altered versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.  Since few users
+ *    ever read sources, credits must appear in the documentation.
+ * 4. This notice may not be removed or altered.
+ */
 
 #define CRLF		"\r\l"
-#define FORWARD		extern
 
 #include <dir.h>
 typedef struct direct	DIRENTRY;
diff --git a/src/sysos9.c b/src/sysos9.c
index fd23aa4..b69ed07 100644
--- a/src/sysos9.c
+++ b/src/sysos9.c
@@ -1,20 +1,32 @@
-/*  $Revision: 1.1 $
-**
-**  OS-9 system-dependant routines for editline library.
-*/
+/* OS-9 (on 68k) system-dependant routines for editline library.
+ *
+ * Copyright (c) 1992, 1993  Simmule Turner and Rich Salz. All rights reserved.
+ *
+ * This software is not subject to any license of the American Telephone
+ * and Telegraph Company or of the Regents of the University of California.
+ *
+ * Permission is granted to anyone to use this software for any purpose on
+ * any computer system, and to alter it and redistribute it freely, subject
+ * to the following restrictions:
+ * 1. The authors are not responsible for the consequences of use of this
+ *    software, no matter how awful, even if they arise from flaws in it.
+ * 2. The origin of this software must not be misrepresented, either by
+ *    explicit claim or by omission.  Since few users ever read sources,
+ *    credits must appear in the documentation.
+ * 3. Altered versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.  Since few users
+ *    ever read sources, credits must appear in the documentation.
+ * 4. This notice may not be removed or altered.
+ */
 #include "editline.h"
 #include <sgstat.h>
 #include <modes.h>
 
-
-void
-rl_ttyset(Reset)
-    int			Reset;
+void rl_ttyset(int Reset)
 {
     static struct sgbuf	old;
     struct sgbuf	new;
 
-
     if (Reset == 0) {
         _gs_opt(0, &old);
         _gs_opt(0, &new);
@@ -33,14 +45,21 @@ rl_ttyset(Reset)
         rl_intr = old.sg_kbich;
         rl_quit = -1;
     }
-    else
+    else {
         _ss_opt(0, &old);
+    }
 }
 
-void
-rl_add_slash(path, p)
-    char	*path;
-    char	*p;
+void rl_add_slash(char *path, char *p)
 {
-    (void)strcat(p, access(path, S_IREAD | S_IFDIR) ? " " : "/");
+    strcat(p, access(path, S_IREAD | S_IFDIR) ? " " : "/");
 }
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "ellemtel"
+ *  c-basic-offset: 4
+ * End:
+ */