PCAP_CREATE(3PCAP)PCAP_CREATE(3PCAP)NAME
pcap_create - create a live capture handle
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
pcap_t *pcap_create(const char *source, char *errbuf);
DESCRIPTION
pcap_create() is used to create a packet capture handle to look at packets on the network. source is a string that specifies the network
device to open; on Linux systems with 2.2 or later kernels, a source argument of "any" or NULL can be used to capture packets from all
interfaces.
The returned handle must be activated with pcap_activate() before packets can be captured with it; options for the capture, such as promis-
cuous mode, can be set on the handle before activating it.
RETURN VALUE
pcap_create() returns a pcap_t * on success and NULL on failure. If NULL is returned, errbuf is filled in with an appropriate error mes-
sage. errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.
SEE ALSO pcap(3PCAP), pcap_activate(3PCAP)
5 April 2008 PCAP_CREATE(3PCAP)
Check Out this Related Man Page
PCAP_CREATE(3PCAP)PCAP_CREATE(3PCAP)NAME
pcap_create - create a live capture handle
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
pcap_t *pcap_create(const char *source, char *errbuf);
DESCRIPTION
pcap_create() is used to create a packet capture handle to look at packets on the network. source is a string that specifies the network
device to open; on Linux systems with 2.2 or later kernels, a source argument of "any" or NULL can be used to capture packets from all
interfaces.
On Darwin systems version 13 or later, a source argument of "all" or "any" can be used to capture packets from all interfaces. A source
argument of NULL can be used to capture packets from all physical interfaces, i.e. excluding loopback, virtual and tunnel interfaces.
The returned handle must be activated with pcap_activate() before packets can be captured with it; options for the capture, such as promis-
cuous mode, can be set on the handle before activating it.
RETURN VALUE
pcap_create() returns a pcap_t * on success and NULL on failure. If NULL is returned, errbuf is filled in with an appropriate error mes-
sage. errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.
SEE ALSO pcap(3PCAP), pcap_activate(3PCAP)
3 January 2014 PCAP_CREATE(3PCAP)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)