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NetBSD 6.1.5 - man page for pcap_activate (netbsd section 3)

PCAP_ACTIVATE(3)								 PCAP_ACTIVATE(3)

NAME
       pcap_activate - activate a capture handle

SYNOPSIS
       #include <pcap/pcap.h>

       int pcap_activate(pcap_t *p);

DESCRIPTION
       pcap_activate() is used to activate a packet capture handle to look at packets on the net-
       work, with the options that were set on the handle being in effect.

RETURN VALUE
       pcap_activate() returns 0 on success without warnings, PCAP_WARNING_PROMISC_NOTSUP on suc-
       cess  on a device that doesn't support promiscuous mode if promiscuous mode was requested,
       PCAP_WARNING on success with any other warning, PCAP_ERROR_ACTIVATED  if  the  handle  has
       already been activated, PCAP_ERROR_NO_SUCH_DEVICE if the capture source specified when the
       handle was created doesn't exist, PCAP_ERROR_PERM_DENIED if the process doesn't have  per-
       mission	to open the capture source, PCAP_ERROR_RFMON_NOTSUP if monitor mode was specified
       but the capture source doesn't support monitor mode, PCAP_ERROR_IFACE_NOT_UP if	the  cap-
       ture  source  is  not  up,  and	PCAP_ERROR if another error occurred.  If PCAP_WARNING or
       PCAP_ERROR is returned, pcap_geterr() or pcap_perror() may be called with p as an argument
       to   fetch  or  display	a  message  describing	the  warning  or  error.   If  PCAP_WARN-
       ING_PROMISC_NOTSUP,  PCAP_ERROR_NO_SUCH_DEVICE,	or  PCAP_ERROR_PERM_DENIED  is	returned,
       pcap_geterr()  or pcap_perror() may be called with p as an argument to fetch or display an
       message giving additional details about the problem that might be useful for debugging the
       problem if it's unexpected.

SEE ALSO
       pcap(3)

					   5 April 2008 			 PCAP_ACTIVATE(3)


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