--- ray/src/rt/lookamb.c	1992/10/15 21:13:13	2.4
+++ ray/src/rt/lookamb.c	2003/06/05 19:29:34	2.9
@@ -1,23 +1,14 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: lookamb.c,v 2.9 2003/06/05 19:29:34 schorsch Exp $";
 #endif
-
 /*
  *  lookamb.c - program to examine ambient components.
- *
- *     10/8/86
  */
 
-#include  <stdio.h>
+#include "copyright.h"
 
-#ifdef MSDOS
-#include  <fcntl.h>
-#endif
-
-#include  "color.h"
-
+#include  "platform.h"
+#include  "ray.h"
 #include  "ambient.h"
 
 
@@ -29,6 +20,7 @@ AMBVAL  av;
 
 
 main(argc, argv)		/* load ambient values from a file */
+int  argc;
 char  *argv[];
 {
 	FILE  *fp;
@@ -64,19 +56,17 @@ char  *argv[];
 		if (header) {
 			if (checkheader(fp, "ascii", stdout) < 0)
 				goto formaterr;
-		} else
+		} else {
+			newheader("RADIANCE", stdout);
 			printargs(argc, argv, stdout);
+		}
 		fputformat(AMBFMT, stdout);
 		putchar('\n');
-#ifdef MSDOS
-		setmode(fileno(stdout), O_BINARY);
-#endif
+		SET_FILE_BINARY(stdout);
 		putambmagic(stdout);
 		writamb(fp);
 	} else {
-#ifdef MSDOS
-		setmode(fileno(fp), O_BINARY);
-#endif
+		SET_FILE_BINARY(fp);
 		if (checkheader(fp, AMBFMT, header ? stdout : (FILE *)NULL) < 0)
 			goto formaterr;
 		if (!hasambmagic(fp))
@@ -95,6 +85,7 @@ formaterr:
 }
 
 
+void
 lookamb(fp)			/* get ambient values from a file */
 FILE  *fp;
 {
@@ -130,6 +121,7 @@ FILE  *fp;
 }
 
 
+void
 writamb(fp)			/* write binary ambient values */
 FILE  *fp;
 {