pcap_lookupnet(3PCAP) man page
Updated: 25 July 2018 • View in plain text • Return to Main Contents
This man page documents libpcap version 1.11.0-PRE-GIT (see also: 1.10.4, 1.10.2, 1.10.1, 1.10.0, 1.9.1, 1.8.1, 1.7.4, 1.6.2, 1.5.3).Your system may have a different version installed, possibly with some local modifications. To achieve the best results, please make sure this version of this man page suits your needs. If necessary, try to look for a different version on this web site or in the man pages available in your installation.
pcap_lookupnet - find the IPv4 network number and netmask for a device
#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);
pcap_lookupnet() is used to determine the IPv4 network number and mask associated with the network device device. Both netp and maskp are
pcap_lookupnet() returns 0 on success and
PCAP_ERRORon failure. If
PCAP_ERRORis returned, errbuf is filled in with an appropriate error message. errbuf is assumed to be able to hold at least
This HTML man page was generated at 12:32:47 GMT, March 11, 2023 from a source man page in "The Tcpdump Group" git repositories using man2html and other tools.