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tcpdump/pcap-missing.h

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NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
/*
* Copyright (c) 1988-2002
* 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.
*
Use pcap_dump_ftell() rather than casting a pcap_dumper_t * to a FILE * and using ftell(); that won't necessarily work on Windows (if libpcap was built with a different version of the C runtime library than tcpdump is), and, even on UN*X, would break if a pcap_dumper_t * were ever made something other than a FILE *. Provide a pcap_dump_ftell() implementation that does that cheating cast for use if libpcap doesn't have it (a pcap_dumper_t * is just a FILE * on those older versions of libpcap).
2005-06-04 06:08:51 +08:00
* @(#) $Header: /tcpdump/master/tcpdump/pcap-missing.h,v 1.3 2005-06-03 22:08:52 guy Exp $ (LBL)
NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
*/
#ifndef tcpdump_pcap_missing_h
#define tcpdump_pcap_missing_h
/*
* Declarations of functions that might be missing from libpcap.
*/
#ifndef HAVE_PCAP_LIST_DATALINKS
extern int pcap_list_datalinks(pcap_t *, int **);
#endif
#ifndef HAVE_PCAP_DATALINK_NAME_TO_VAL
/*
* We assume no platform has one but not the other.
*/
extern int pcap_datalink_name_to_val(const char *);
extern const char *pcap_datalink_val_to_name(int);
#endif
Print both the name and the description of a link-layer type (the name isn't always very suggestive - for example, somebody might think "EN10MB" is always 10 MB/s, and might not know that "IEEE802" is Token Ring), using "pcap_datalink_val_to_description()". Supply our own "pcap_datalink_val_to_description()" if libpcap doesn't have it (even if it has "pcap_datalink_name_to_val()").
2003-11-19 07:09:42 +08:00
#ifndef HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION
extern const char *pcap_datalink_val_to_description(int);
#endif
Use pcap_dump_ftell() rather than casting a pcap_dumper_t * to a FILE * and using ftell(); that won't necessarily work on Windows (if libpcap was built with a different version of the C runtime library than tcpdump is), and, even on UN*X, would break if a pcap_dumper_t * were ever made something other than a FILE *. Provide a pcap_dump_ftell() implementation that does that cheating cast for use if libpcap doesn't have it (a pcap_dumper_t * is just a FILE * on those older versions of libpcap).
2005-06-04 06:08:51 +08:00
#ifndef HAVE_PCAP_DUMP_FTELL
extern long pcap_dump_ftell(pcap_dumper_t *);
#endif
NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
#endif
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