pcap_can_set_rfmon(3) pcap_can_set_rfmon(3)
NAME
pcap_can_set_rfmon - check whether monitor mode can be set for a not-
yet-activated capture handle
SYNOPSIS
#include <pcap/pcap.h>
pcap_can_set_rfmon(3) *p);
DESCRIPTION
pcap_can_set_rfmon(3) checks whether monitor mode could be set on a cap-
ture handle when the handle is activated.
RETURN VALUE
pcap_can_set_rfmon(3) returns 0 if monitor mode could not be set, 1 if
monitor mode could be set, and a negative value on error. A negative
return value indicates what error condition occurred. The possible
error values are:
PCAP_ERROR_NO_SUCH_DEVICE
The capture source specified when the handle was created doesn't
exist.
PCAP_ERROR_PERM_DENIED
The process doesn't have permission to check whether monitor
mode could be supported.
PCAP_ERROR_ACTIVATED
The capture handle has already been activated.
PCAP_ERROR
Another error occurred. pcap_geterr() or pcap_perror() may be
called with p as an argument to fetch or display a message
describing the error.
Additional error codes may be added in the future; a program should
check for 0, 1, and negative, return codes, and treat all negative
return codes as errors. pcap_statustostr() can be called, with a warn-
ing or error code as an argument, to fetch a message describing the
warning or error code.
SEE ALSO
pcap(3), pcap_create(3), pcap_activate(3),
pcap_set_rfmon(3)
3 January 2014 pcap_can_set_rfmon(3)
libpcap 1.8.1 - Generated Wed Oct 26 16:18:43 CDT 2016