--- pgp/src/usuals.h	2018/04/24 16:37:54	1.1
+++ pgp/src/usuals.h	2018/04/24 16:40:27	1.1.1.4
@@ -1,24 +1,41 @@
-/* usuals.h - The usual typedefs, etc.
-*/
-#ifndef USUALS /* Assures no redefinitions of usual types...*/
-#define USUALS
-
-typedef unsigned char boolean;	/* values are TRUE or FALSE */
-typedef unsigned char byte;	/* values are 0-255 */
-typedef byte *byteptr;	/* pointer to byte */
-typedef char *string;	/* pointer to ASCII character string */
-typedef unsigned short word16;	/* values are 0-65535 */
-typedef unsigned long word32;	/* values are 0-4294967295 */
-
-#ifndef TRUE
-#define FALSE 0
-#define TRUE (!FALSE)
-#endif	/* if TRUE not already defined */
-
-#ifndef min	/* if min macro not already defined */
-#define min(a,b) ( (a)<(b) ? (a) : (b) )
-#define max(a,b) ( (a)>(b) ? (a) : (b) )
-#endif	/* if min macro not already defined */
-
-#endif	/* if USUALS not already defined */
-
+/* usuals.h - The usual typedefs, etc.
+*/
+#ifndef USUALS /* Assures no redefinitions of usual types...*/
+#define USUALS
+
+typedef unsigned char boolean;	/* values are TRUE or FALSE */
+typedef unsigned char byte;	/* values are 0-255 */
+typedef byte *byteptr;	/* pointer to byte */
+typedef char *string;	/* pointer to ASCII character string */
+typedef unsigned short word16;	/* values are 0-65535 */
+#ifdef __alpha
+typedef unsigned int word32;	/* values are 0-4294967295 */
+#else
+typedef unsigned long word32;	/* values are 0-4294967295 */
+#endif
+
+#ifndef TRUE
+#define FALSE 0
+#define TRUE (!FALSE)
+#endif	/* if TRUE not already defined */
+
+#ifndef min	/* if min macro not already defined */
+#define min(a,b) (((a)<(b)) ? (a) : (b) )
+#define max(a,b) (((a)>(b)) ? (a) : (b) )
+#endif	/* if min macro not already defined */
+
+/* void for use in pointers */
+#ifndef NO_VOID_STAR
+#define	VOID	void
+#else
+#define	VOID	char
+#endif
+
+	/* Zero-fill the byte buffer. */
+#define fill0(buffer,count)	memset( buffer, 0, count )
+
+	/* This macro is for burning sensitive data.  Many of the
+	   file I/O routines use it for zapping buffers */
+#define burn(x) fill0((VOID *)&(x),sizeof(x))
+
+#endif	/* if USUALS not already defined */