sf-pcap-ng.h   [plain text]


/*
 * Copyright (c) 1993, 1994, 1995, 1996, 1997
 *	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.
 *
 * sf-pcap-ng.h - pcap-ng-file-format-specific routines
 *
 * Used to read pcap-ng savefiles.
 */

#ifndef sf_pcap_ng_h
#define	sf_pcap_ng_h

/*
 * Block cursor - used when processing the contents of a block.
 * Contains a pointer into the data being processed and a count
 * of bytes remaining in the block.
 */
struct block_cursor {
	u_char		*data;
	size_t		data_remaining;
	bpf_u_int32	block_type;
};


extern void * get_from_block_data(struct block_cursor *, size_t ,
                           char *);
struct pcapng_option_header * get_opthdr_from_block_data(struct pcapng_option_header *, int,
						   struct block_cursor *, char *);

void * get_optvalue_from_block_data(struct block_cursor *,
									struct pcapng_option_header *, char *);

extern int pcap_ng_check_header(pcap_t *, bpf_u_int32, FILE *, char *, int);

#endif