1PCAP_SETFILTER(3PCAP) PCAP_SETFILTER(3PCAP)
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6 pcap_setfilter - set the filter
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9 #include <pcap/pcap.h>
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11 int pcap_setfilter(pcap_t *p, struct bpf_program *fp);
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14 pcap_setfilter() is used to specify a filter program. fp is a pointer
15 to a bpf_program struct, usually the result of a call to
16 pcap_compile(3PCAP).
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19 pcap_setfilter() returns 0 on success and PCAP_ERROR on failure. If
20 PCAP_ERROR is returned, pcap_geterr(3PCAP) or pcap_perror(3PCAP) may be
21 called with p as an argument to fetch or display the error text.
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24 pcap(3PCAP)
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28 25 July 2018 PCAP_SETFILTER(3PCAP)