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PCAP_CREATE(3) Library Functions Manual PCAP_CREATE(3) 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 promiscuous 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 message. errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars. SEE ALSO pcap(3), pcap_activate(3) 3 January 2014 PCAP_CREATE(3)