+/* $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.
* 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.
*
* @(#)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.
#define DATA 03 /* data packet */
#define ACK 04 /* acknowledgement */
#define ERROR 05 /* error code */
+#define OACK 06 /* option acknowledgement */
struct tftphdr {
- unsigned short th_opcode; /* packet type */
+ short th_opcode; /* packet type */
union {
- unsigned short tu_block; /* block # */
- unsigned short tu_code; /* error code */
+ unsigned short tu_block; /* block # */
+ short tu_code; /* error code */
char tu_stuff[1]; /* request packet stuff */
} th_u;
char th_data[1]; /* data or error string */
#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_ */