foreach loop Post: 302202776

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LEARN ABOUT FREEBSD

pcap_activate

PCAP_ACTIVATE(3)					     Library Functions Manual						  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 network, 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 success on a device that doesn't support  promiscuous
       mode  if  promiscuous  mode  was  requested,  PCAP_WARNING_TSTAMP_TYPE_NOTSUP  on  success  if  the time stamp type specified in a previous
       pcap_set_tstamp_type() call isn't supported by the capture source (the time stamp type is left as the  default),  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	permission  to	open  the  capture
       source,	PCAP_ERROR_PROMISC_PERM_DENIED if the process has permission to open the capture source but doesn't have permission to put it into
       promiscuous  mode,  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  capture  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_WARNING_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)

								 21 September 2010						  PCAP_ACTIVATE(3)

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