pcap_set_datalink(3pcap) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON

PCAP_SET_DATALINK(3PCAP)                         PCAP_SET_DATALINK(3PCAP)

NAME         top

       pcap_set_datalink - set the link-layer header type to be used by a
       capture device

SYNOPSIS         top

       #include <pcap/pcap.h>

       int pcap_set_datalink(pcap_t *p, int dlt);

DESCRIPTION         top

       pcap_set_datalink() is used to set the current link-layer header
       type of the pcap descriptor to the type specified by dlt.

RETURN VALUE         top

       pcap_set_datalink() 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         top

       pcap(3PCAP), pcap_datalink(3PCAP), pcap_list_datalinks(3PCAP),
       pcap_datalink_name_to_val(3PCAP)

COLOPHON         top

       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 2025-02-02.
       (At that time, the date of the most recent commit that was found
       in the repository was 2025-01-31.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there is
       a better 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

                               5 March 2022      PCAP_SET_DATALINK(3PCAP)