--- ray/src/common/header.c	2019/08/14 18:20:02	2.36
+++ ray/src/common/header.c	2022/03/06 16:27:55	2.44
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: header.c,v 2.36 2019/08/14 18:20:02 greg Exp $";
+static const char	RCSid[] = "$Id: header.c,v 2.44 2022/03/06 16:27:55 greg Exp $";
 #endif
 /*
  *  header.c - routines for reading and writing information headers.
@@ -31,6 +31,7 @@ static const char	RCSid[] = "$Id: header.c,v 2.36 2019
 
 #include  "tiff.h"	/* for int32 */
 #include  "rtio.h"
+#include  "color.h"
 #include  "resolu.h"
 
 #define	 MAXLINE	2048
@@ -57,7 +58,7 @@ newheader(		/* identifying line of information header 
 {
 	fputs(HDRSTR, fp);
 	fputs(s, fp);
-	putc('\n', fp);
+	fputc('\n', fp);
 }
 
 
@@ -167,6 +168,14 @@ printargs(		/* print arguments to a file */
 	FILE  *fp
 )
 {
+#if defined(_WIN32) || defined(_WIN64)
+	extern char	*fixargv0(char *arg0);
+	char		myav0[128];
+				/* clean up Windows executable path */
+	if (ac-- <= 0) return;
+	fputs(fixargv0(strcpy(myav0, *av++)), fp);
+	fputc(ac ? ' ' : '\n', fp);
+#endif
 	while (ac-- > 0) {
 		fputword(*av++, fp);
 		fputc(ac ? ' ' : '\n', fp);
@@ -201,9 +210,35 @@ fputformat(		/* put out a format value */
 	FILE  *fp
 )
 {
+	int	align = 0;
+
 	fputs(FMTSTR, fp);
 	fputs(s, fp);
-	putc('\n', fp);
+			/* pad to align binary type for mmap() */
+	if (globmatch(PICFMT, s))
+		align = 0;	/* not needed for picture data */
+	else if (!strncmp("float", s, 5))
+		align = sizeof(float);
+	else if (!strncmp("double", s, 6))
+		align = sizeof(double);
+	else if (!strncmp("16-bit", s, 6))
+		align = 2;
+	else if (!strncmp("32-bit", s, 6))
+		align = 4;
+	else if (!strncmp("64-bit", s, 6))
+		align = 8;
+	if (align) {
+		long	pos = ftell(fp);
+		if (pos >= 0) {
+			pos = (pos + 2) % align;
+			if (pos) align -= pos;
+			else align = 0;
+		} else
+			align = 0;
+	}
+	while (align-- > 0)
+		putc(' ', fp);
+	fputc('\n', fp);
 }
 
 
@@ -225,7 +260,7 @@ isbigendian(		/* header line says "BigEndian=1" (-1 if
 {
 	const char	*be = BIGEND;
 
-	while (*s & (*be != '=') && *s++ == *be)
+	while ((*s != '\0') & (*be != '=') && *s++ == *be)
 		++be;
 	if (*be != '=')
 		return(-1);	/* irrelevant */
@@ -299,7 +334,7 @@ mycheck(			/* check a header line for format info. */
 	struct check	*scp = (struct check *)cp;
 
 	if (!formatval(scp->fs, s) && scp->fp != NULL)
-		fputs(s, scp->fp);
+		return(fputs(s, scp->fp));
 
 	return(0);
 }