svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
pcap_getnonblock(3pcap)
PCAP_SETNONBLOCK(3pcap)PCAP_SETNONBLOCK(3pcap)
NAME
pcap_setnonblock, pcap_getnonblock - set or get the state of non-block‐
ing mode on a capture device
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
int pcap_setnonblock(pcap_t *p, int nonblock, char *errbuf);
int pcap_getnonblock(pcap_t *p, char *errbuf);
DESCRIPTION
pcap_setnonblock() puts a capture handle into ``non-blocking'' mode, or
takes it out of ``non-blocking'' mode, depending on whether the non‐
block argument is non-zero or zero. It has no effect on ``savefiles''.
If there is an error, PCAP_ERROR is returned and errbuf is filled in
with an appropriate error message; otherwise, 0 is returned.
In ``non-blocking'' mode, an attempt to read from the capture descrip‐
tor with pcap_dispatch(3PCAP) and pcap_next_ex(3PCAP) will, if no pack‐
ets are currently available to be read, return 0 immediately rather
than blocking waiting for packets to arrive.
pcap_loop(3PCAP) will loop forever, consuming CPU time when no packets
are currently available; pcap_dispatch() should be used instead.
pcap_next(3PCAP) will return NULL if there are no packets currently
available to read; this is indistinguishable from an error, so
pcap_next_ex() should be used instead.
When first activated with pcap_activate(3PCAP) or opened with
pcap_open_live(3PCAP), a capture handle is not in ``non-blocking
mode''; a call to pcap_setnonblock() is required in order to put it
into ``non-blocking'' mode.
RETURN VALUE
pcap_getnonblock() returns the current ``non-blocking'' state of the
capture descriptor; it always returns 0 on ``savefiles''. If called on
a capture handle that has been created but not activated, PCAP_ER‐
ROR_NOT_ACTIVATED is returned. If there is another error, PCAP_ERROR
is returned and errbuf is filled in with an appropriate error message.
errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
box; cbp-1 | cbp-1 l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
ity system/library/libpcap = Stability Uncommitted
SEE ALSO
pcap(3PCAP), pcap_next_ex(3PCAP), pcap_geterr(3PCAP)
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at:
https://github.com/oracle/solaris-userland
The original community source was downloaded from:
https://www.tcpdump.org/release/libpcap-1.10.4.tar.gz
Further information about this software can be found on the open source
community website at https://www.tcpdump.org/.
5 March 2022 PCAP_SETNONBLOCK(3pcap)