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+.\" Copyright (c) 1994, 1996, 1997
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that: (1) source code distributions
+.\" retain the above copyright notice and this paragraph in its entirety, (2)
+.\" distributions including binary code include the above copyright notice and
+.\" this paragraph in its entirety in the documentation or other materials
+.\" provided with the distribution, and (3) all advertising materials mentioning
+.\" features or use of this software display the following acknowledgement:
+.\" ``This product includes software developed by the University of California,
+.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+.\" the University nor the names of its contributors may be used to endorse
+.\" or promote products derived from this software without specific prior
+.\" written permission.
+.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+.\"
+.TH PCAP_SET_TIMEOUT 3PCAP "6 December 2017"
+.SH NAME
+pcap_set_timeout \- set the packet buffer timeout for a
+not-yet-activated capture handle
+.SH SYNOPSIS
+.nf
+.ft B
+#include <pcap/pcap.h>
+.LP
+.ft B
+int pcap_set_timeout(pcap_t *p, int to_ms);
+.ft
+.fi
+.SH DESCRIPTION
+.B pcap_set_timeout()
+sets the packet buffer timeout that will be used on a capture handle
+when the handle is activated to
+.IR to_ms ,
+which is in units of milliseconds.  (See
+.BR pcap (3PCAP)
+for an explanation of the packet buffer timeout.)
+.LP
+The behavior, if the timeout isn't specified, is undefined, as is the
+behavior if the timeout is set to zero or to a negative value.  We
+recommend always setting the timeout to a non-zero value unless
+immediate mode is set, in which case the timeout has no effect.
+.SH RETURN VALUE
+.B pcap_set_timeout()
+returns 0 on success or
+.B PCAP_ERROR_ACTIVATED
+if called on a capture handle that has been activated.
+.SH SEE ALSO
+pcap_create(3PCAP), pcap_activate(3PCAP),
+\%pcap_set_immediate_mode(3PCAP)