PCAP_SETDIRECTION(3PCAP)PCAP_SETDIRECTION(3PCAP)NAME
pcap_setdirection - set the direction for which packets will be captured
SYNOPSIS
#include <pcap/pcap.h>
int pcap_setdirection(pcap_t *p, pcap_direction_t d);
DESCRIPTION
pcap_setdirection() is used to specify a direction that packets will be captured. d is one of the constants PCAP_D_IN, PCAP_D_OUT or
PCAP_D_INOUT. PCAP_D_IN will only capture packets received by the device, PCAP_D_OUT will only capture packets sent by the device and
PCAP_D_INOUT will capture packets received by or sent by the device. PCAP_D_INOUT is the default setting if this function is not called.
pcap_setdirection() isn't necessarily fully supported on all platforms; some platforms might return an error for all values, and some other
platforms might not support PCAP_D_OUT.
This operation is not supported if a ``savefile'' is being read.
RETURN VALUE
pcap_setdirection() returns 0 on success and -1 on failure. If -1 is returned, pcap_geterr() or pcap_perror() may be called with p as an
argument to fetch or display the error text.
SEE ALSO pcap(3PCAP), pcap_geterr(3PCAP)
5 April 2008 PCAP_SETDIRECTION(3PCAP)
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PCAP_SETDIRECTION(3PCAP)PCAP_SETDIRECTION(3PCAP)NAME
pcap_setdirection - set the direction for which packets will be captured
SYNOPSIS
#include <pcap/pcap.h>
int pcap_setdirection(pcap_t *p, pcap_direction_t d);
DESCRIPTION
pcap_setdirection() is used to specify a direction that packets will be captured. d is one of the constants PCAP_D_IN, PCAP_D_OUT or
PCAP_D_INOUT. PCAP_D_IN will only capture packets received by the device, PCAP_D_OUT will only capture packets sent by the device and
PCAP_D_INOUT will capture packets received by or sent by the device. PCAP_D_INOUT is the default setting if this function is not called.
pcap_setdirection() isn't necessarily fully supported on all platforms; some platforms might return an error for all values, and some other
platforms might not support PCAP_D_OUT.
This operation is not supported if a ``savefile'' is being read.
RETURN VALUE
pcap_setdirection() returns 0 on success and -1 on failure. If -1 is returned, pcap_geterr() or pcap_perror() may be called with p as an
argument to fetch or display the error text.
SEE ALSO pcap(3PCAP), pcap_geterr(3PCAP)
5 April 2008 PCAP_SETDIRECTION(3PCAP)
Hi,
I am new at UNIX and programing in general and only have a basic knowledge of C++. I am helping out with some research at a college and was given the task to sort through captured packets via IP addresses. I was wondering if anyone could help me with writing a code which filters through pcap... (1 Reply)
Hi,
I am new at UNIX and programing in general and only have a basic knowledge of C++. I am helping out with some research at a college and was given the task to sort through captured packets via IP addresses. I was wondering if anyone could help me with writing a code which filters through pcap... (4 Replies)
hi All,
I have one file:
gain an overview. sue the swquesces. capture
333.captured
tesh the values in the history.
There may be something. caputure
111.done
Then there is
nothing everything is going on.
Again there is. capture
222.ok
I want the output as :
333.captured
111.done... (6 Replies)
Is there anywhere we can get details about what we should expect to see and not to see in some packets captured with "snoop" during troubleshooting a problem? I know we can capture packes for a failed transaction and compare them with packets for a successful trasaction.Is that the only way to... (4 Replies)