from small one page howto to huge articles all in one place
poll results
Last additions:
May 25th. 2007:
April, 26th. 2006:
| 
PCAP_DATALINK
Section: Misc. Reference Manual Pages (3PCAP) Updated: 7 April 2014 Index
Return to Main Contents
NAME
pcap_datalink - get the link-layer header type
SYNOPSIS
#include <pcap/pcap.h>
int pcap_datalink(pcap_t *p);
DESCRIPTION
pcap_datalink()
returns the link-layer header type for the live capture or ``savefile''
specified by
p.
It must not be called on a pcap descriptor created by
pcap_create()
that has not yet been activated by
pcap_activate().
http://www.tcpdump.org/linktypes.html
lists the values
pcap_datalink()
can return and describes the packet formats that
correspond to those values.
Do
NOT
assume that the packets for a given capture or ``savefile`` will have
any given link-layer header type, such as
DLT_EN10MB
for Ethernet. For example, the "any" device on Linux will have a
link-layer header type of
DLT_LINUX_SLL
even if all devices on the system at the time the "any" device is opened
have some other data link type, such as
DLT_EN10MB
for Ethernet.
RETURN VALUE
pcap_datalink()
returns the link-layer header type on success and
PCAP_ERROR_NOT_ACTIVATED
if called on a capture handle that has been created but not activated.
SEE ALSO
pcap(3PCAP), pcap-linktype(7)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- SEE ALSO
-
| 
|
|
- Running on 
-
:
: 