1.\" @(#) $Header: /tcpdump/master/libpcap/pcap_can_set_rfmon.3pcap,v 1.1 2008-04-06 02:53:21 guy Exp $ 2.\" 3.\" Copyright (c) 1994, 1996, 1997 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that: (1) source code distributions 8.\" retain the above copyright notice and this paragraph in its entirety, (2) --- 5 unchanged lines hidden (view full) --- 14.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 15.\" the University nor the names of its contributors may be used to endorse 16.\" or promote products derived from this software without specific prior 17.\" written permission. 18.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 19.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 20.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 21.\" |
22.TH PCAP_CAN_SET_RFMON 3PCAP "18 May 2010" |
23.SH NAME 24pcap_can_set_rfmon \- check whether monitor mode can be set for a 25not-yet-activated capture handle 26.SH SYNOPSIS 27.nf 28.ft B 29#include <pcap/pcap.h> 30.LP 31.ft B 32int pcap_can_set_rfmon(pcap_t *p); 33.ft 34.fi 35.SH DESCRIPTION 36.B pcap_can_set_rfmon() 37checks whether monitor mode could be set on a capture handle when 38the handle is activated. 39.SH RETURN VALUE |
40.B pcap_can_set_rfmon() |
41returns 0 if monitor mode could not be set, 421 if monitor mode could be set, 43.B PCAP_ERROR_NO_SUCH_DEVICE |
44if the capture source specified when the handle was created doesn't 45exist, 46.B PCAP_ERROR_PERM_DENIED 47if the process doesn't have permission to check whether monitor mode 48could be supported, |
49.B PCAP_ERROR_ACTIVATED 50if called on a capture handle that has been activated, or 51.B PCAP_ERROR 52if an error occurred. 53If 54.B PCAP_ERROR 55is returned, 56.B pcap_geterr() 57or 58.B pcap_perror() 59may be called with 60.I p 61as an argument to fetch or display the error text. 62.SH SEE ALSO 63pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP), 64pcap_set_rfmon(3PCAP) |