--- Libc/Libc-262/include/arpa/tftp.h
+++ Libc/Libc-583/include/arpa/tftp.h
@@ -1,24 +1,5 @@
-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
+/*	$NetBSD: tftp.h,v 1.8 2003/08/07 09:44:12 agc Exp $	*/
+
 /*
  * Copyright (c) 1983, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -31,11 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -54,13 +31,17 @@
  *	@(#)tftp.h	8.1 (Berkeley) 6/2/93
  */
 
-#ifndef _TFTP_H_
-#define	_TFTP_H_
+#ifndef _ARPA_TFTP_H_
+#define	_ARPA_TFTP_H_
 
 /*
  * Trivial File Transfer Protocol (IEN-133)
  */
-#define	SEGSIZE		512		/* data segment size */
+#define	SEGSIZE		512	/* data segment size */
+#define	MAXSEGSIZE	65464	/* maximum negotiated data segment size */
+
+#define PKTSIZE		SEGSIZE + 4
+#define MAXPKTSIZE	MAXSEGSIZE + 4
 
 /*
  * Packet types.
@@ -70,11 +51,12 @@
 #define	DATA	03			/* data packet */
 #define	ACK	04			/* acknowledgement */
 #define	ERROR	05			/* error code */
+#define	OACK	06			/* option acknowledgement */
 
 struct	tftphdr {
 	short	th_opcode;		/* packet type */
 	union {
-		short	tu_block;	/* block # */
+		unsigned short tu_block; /* block # */
 		short	tu_code;	/* error code */
 		char	tu_stuff[1];	/* request packet stuff */
 	} th_u;
@@ -97,5 +79,6 @@
 #define	EBADID		5		/* unknown transfer ID */
 #define	EEXISTS		6		/* file already exists */
 #define	ENOUSER		7		/* no such user */
+#define	EOPTNEG		8		/* option negotiation failed */
 
-#endif /* !_TFTP_H_ */
+#endif /* _ARPA_TFTP_H_ */