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- /*
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that: (1) source code distributions
- * retain the above copyright notice and this paragraph in its entirety, (2)
- * distributions including binary code include the above copyright notice and
- * this paragraph in its entirety in the documentation or other materials
- * provided with the distribution, and (3) all advertising materials mentioning
- * features or use of this software display the following acknowledgement:
- * ``This product includes software developed by the University of California,
- * Lawrence Berkeley Laboratory and its contributors.'' 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.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * $Header: savefile.h,v 1.10 90/12/17 13:48:58 mccanne Exp $
- *
- * Header for offline storage info.
- * Extraction/creation by Jeffrey Mogul, DECWRL.
- *
- * Used to save the received packet headers, after filtering, to
- * a file, and then read them later.
- */
-
- /*
- * Each packet in the dump file is prepended with this generic header.
- * This gets around the problem of different headers for different
- * packet interfaces.
- */
- struct packet_header {
- struct timeval ts; /* time stamp */
- u_long len; /* length this packet (off wire) */
- u_long caplen; /* length of portion present */
- };
-
- /* true if the contents of the savefile being read are byte-swapped */
- extern int sf_swapped;
-
- /* macros for when sf_swapped is true: */
- /*
- * We use the "receiver-makes-right" approach to byte order,
- * because time is at a premium when we are writing the file.
- * In other words, the file_header and packet_header records
- * are written in host byte order.
- * Note that the packets are always written in network byte order.
- *
- * ntoh[ls] aren't sufficient because we might need to swap on a big-endian
- * machine (if the file was written in little-end order).
- */
- #define SWAPLONG(y) \
- ((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff))
- #define SWAPSHORT(y) \
- ( (((y)&0xff)<<8) | (((y)&0xff00)>>8) )
-
-
- extern FILE *sf_readfile; /* dump file being read from */
- extern FILE *sf_writefile; /* dump file being written to */
-
- int sf_read_init();
- int sf_read();
- int sf_next_packet();
- void sf_write_init();
- void sf_write();
- void sf_err();
-
- #define SFERR_TRUNC 1
- #define SFERR_BADVERSION 2
- #define SFERR_BADF 3
- #define SFERR_EOF 4 /* not really an error, just a status */
-
-