User  |  Syst  |  Libr  |  Device  |  Files  |  Other  |  Admin  |  Head  |

---

   pcap_lookupnet.3pcap    ( 3 )

---

---

Имя (Name)

pcap_lookupnet - find the IPv4 network number and netmask for a
       device

---

Синопсис (Synopsis)

#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);

---

Описание (Description)

pcap_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.

---

Возвращаемое значение (Return value)

pcap_lookupnet() returns 0 on success and PCAP_ERROR on failure.
       If PCAP_ERROR 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.

---

Смотри также (See also)

pcap(3PCAP)

---