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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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PCAP_CREATE(3PCAP) PCAP_CREATE(3PCAP)
pcap_create - create a live capture handle
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
pcap_t *pcap_create(const char *source, char *errbuf);
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
promiscuous mode, can be set on the handle before activating it.
pcap_create() returns a pcap_t * on success and NULL on failure. If
NULL is returned, errbuf is filled in with an appropriate error
message. errbuf is assumed to be able to hold at least
PCAP_ERRBUF_SIZE chars.
pcap(3PCAP), pcap_activate(3PCAP)
This page is part of the libpcap (packet capture library) project.
Information about the project can be found at
⟨http://www.tcpdump.org/⟩. If you have a bug report for this manual
page, see ⟨http://www.tcpdump.org/#patches⟩. This page was obtained
from the project's upstream Git repository
⟨https://github.com/the-tcpdump-group/libpcap.git⟩ on 2018-02-02.
(At that time, the date of the most recent commit that was found in
the repository was 2018-01-31.) If you discover any rendering prob‐
lems in this HTML version of the page, or you believe there is a bet‐
ter or more up-to-date source for the page, or you have corrections
or improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to man-pages@man7.org
3 January 2014 PCAP_CREATE(3PCAP)
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