NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON
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(3PCAP) 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.
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 2022-12-17. (At that time, the date of the most recent commit that was found in the repository was 2022-12-13.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better 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 firstname.lastname@example.org 3 January 2014 PCAP_CREATE(3PCAP)