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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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PCAP_CAN_SET_RFMON(3PCAP) PCAP_CAN_SET_RFMON(3PCAP)
pcap_can_set_rfmon - check whether monitor mode can be set for a not-
yet-activated capture handle
#include <pcap/pcap.h>
int pcap_can_set_rfmon(pcap_t *p);
pcap_can_set_rfmon() checks whether monitor mode could be set on a
capture handle when the handle is activated.
pcap_can_set_rfmon() 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
warning or error code as an argument, to fetch a message describing
the warning or error code.
pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP),
pcap_set_rfmon(3PCAP)
This page is part of the libpcap (packet capture library) project.
Information about the project can be found at
⟨http://www.tcpdump.org/⟩. If you have a bug report for this manual
page, see ⟨http://www.tcpdump.org/#patches⟩. This page was obtained
from the project's upstream Git repository
⟨https://github.com/the-tcpdump-group/libpcap.git⟩ on 2018-02-02.
(At that time, the date of the most recent commit that was found in
the repository was 2018-01-31.) If you discover any rendering prob‐
lems in this HTML version of the page, or you believe there is a bet‐
ter or more up-to-date source for the page, or you have corrections
or improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to man-pages@man7.org
3 January 2014 PCAP_CAN_SET_RFMON(3PCAP)
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