pcap_open_live man page on FreeBSD

Man page or keyword search:  
man Server   9747 pages
apropos Keyword Search (all sections)
Output format
FreeBSD logo
[printable version]


       pcap_open_live - open a device for capturing

       #include <pcap/pcap.h>

       char errbuf[PCAP_ERRBUF_SIZE];

       pcap_t *pcap_open_live(const char *device, int snaplen,
	       int promisc, int to_ms, char *errbuf);

       pcap_open_live()	 is  used to obtain a packet capture handle to look at
       packets on the network.	device is a string that specifies the  network
       device  to  open;  on Linux systems with 2.2 or later kernels, a device
       argument of "any" or NULL can be	 used  to  capture  packets  from  all

       snaplen specifies the snapshot length to be set on the handle.

       promisc specifies if the interface is to be put into promiscuous mode.

       to_ms specifies the read timeout in milliseconds.

       pcap_open_live() returns a pcap_t * on success and NULL on failure.  If
       NULL is returned, errbuf is filled in with an  appropriate  error  mes‐
       sage.   errbuf  may  also  be set to warning text when pcap_open_live()
       succeds; to detect this case the	 caller	 should	 store	a  zero-length
       string  in errbuf before calling pcap_open_live() and display the warn‐
       ing to the user if errbuf is no longer a zero-length string.  errbuf is
       assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.

       pcap(3), pcap_create(3), pcap_activate(3)

				 5 April 2008		     PCAP_OPEN_LIVE(3)

List of man pages available for FreeBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net