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PCAP_SETFILTER
Section: Misc. Reference Manual Pages (3PCAP) Updated: 5 March 2022 Index
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NAME
pcap_setfilter - set the filter
SYNOPSIS
#include <pcap/pcap.h>
int pcap_setfilter(pcap_t *p, struct bpf_program *fp);
DESCRIPTION
pcap_setfilter()
is used to specify a filter program.
fp
is a pointer to a
bpf_program
struct, usually the result of a call to
pcap_compile(3PCAP).
RETURN VALUE
pcap_setfilter()
returns
0
on success,
PCAP_ERROR_NOT_ACTIVATED
if called on a capture handle that has been created but not activated, or
PCAP_ERROR
on other errors. If
PCAP_ERROR
is returned,
pcap_geterr(3PCAP)
or
pcap_perror(3PCAP)
may be called with
p
as an argument to fetch or display the error text.
SEE ALSO
pcap(3PCAP)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- SEE ALSO
-
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