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pcap_set_buffer_size(3pcap) — Linux manual page

PCAP_SET_BUFFER_SIZE(3PCAP)PCAP_SET_BUFFER_SIZE(3PCAP)

NAME        top

       pcap_set_buffer_size - set the buffer size for a not-yet-activated       capture handle

SYNOPSIS        top

#include <pcap/pcap.h>int pcap_set_buffer_size(pcap_t *p, int buffer_size);

DESCRIPTION        top

pcap_set_buffer_size() sets the buffer size that will be used on a       capture handle when the handle is activated tobuffer_size, which       is in units of bytes.

RETURN VALUE        top

pcap_set_buffer_size() returns0on success orPCAP_ERROR_ACTIVATEDif called on a capture handle that has been       activated.

SEE ALSO        top

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

COLOPHON        top

       This page is part of thelibpcap (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 2025-08-11.       (At that time, the date of the most recent commit that was found       in the repository was 2025-08-10.)  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 isnot part of the original manual page), send a mail to       man-pages@man7.org                              3 January 2014PCAP_SET_BUFFER_SIZE(3PCAP)

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