--- ray/src/rt/lookamb.c	1994/02/27 10:17:33	2.6
+++ ray/src/rt/lookamb.c	2004/03/30 16:13:01	2.10
@@ -1,24 +1,16 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: lookamb.c,v 2.10 2004/03/30 16:13:01 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"
+#include  "resolu.h"
 
 
 int  dataonly = 0;
@@ -28,9 +20,11 @@ int  reverse = 0;
 AMBVAL  av;
 
 
-main(argc, argv)		/* load ambient values from a file */
-int  argc;
-char  *argv[];
+int
+main(		/* load ambient values from a file */
+	int  argc,
+	char  *argv[]
+)
 {
 	FILE  *fp;
 	int  i;
@@ -71,15 +65,11 @@ char  *argv[];
 		}
 		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))
@@ -98,8 +88,10 @@ formaterr:
 }
 
 
-lookamb(fp)			/* get ambient values from a file */
-FILE  *fp;
+extern void
+lookamb(			/* get ambient values from a file */
+	FILE  *fp
+)
 {
 	while (readambval(&av, fp)) {
 		if (dataonly) {
@@ -133,8 +125,10 @@ FILE  *fp;
 }
 
 
-writamb(fp)			/* write binary ambient values */
-FILE  *fp;
+extern void
+writamb(			/* write binary ambient values */
+	FILE  *fp
+)
 {
 	for ( ; ; ) {
 		if (!dataonly)