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   pcap_can_set_rfmon.3pcap    ( 3 )

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Имя (Name)

pcap_can_set_rfmon - check whether monitor mode can be set for a
       not-yet-activated capture handle

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Синопсис (Synopsis)

#include <pcap/pcap.h>

       int pcap_can_set_rfmon(pcap_t *p);

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Описание (Description)

pcap_can_set_rfmon() checks whether monitor mode could be set on
       a capture handle when the handle is activated.

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Возвращаемое значение (Return value)

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(3PCAP) or
              pcap_perror(3PCAP) 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(3PCAP) can be
       called, with a warning or error code as an argument, to fetch a
       message describing the warning or error code.

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Смотри также (See also)

pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP),
       pcap_set_rfmon(3PCAP)

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