Query: pcap_lookupnet
OS: x11r4
Section: 3pcap
Links: x11r4 man pages all man pages
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PCAP_LOOKUPNET(3PCAP) PCAP_LOOKUPNET(3PCAP)NAMEpcap_lookupnet - find the IPv4 network number and netmask for a deviceSYNOPSIS#include <pcap/pcap.h> char errbuf[PCAP_ERRBUF_SIZE]; int pcap_lookupnet(const char *device, bpf_u_int32 *netp, bpf_u_int32 *maskp, char *errbuf);DESCRIPTIONpcap_lookupnet() is used to determine the IPv4 network number and mask associated with the network device device. Both netp and maskp are bpf_u_int32 pointers.RETURN VALUEpcap_lookupnet() returns 0 on success and -1 on failure. If -1 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 ALSOpcap(3PCAP) 5 April 2008 PCAP_LOOKUPNET(3PCAP)