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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_LIST_TSTAMP_TYPES 3PCAP "22 August 2018"
+.SH NAME
+pcap_list_tstamp_types, pcap_free_tstamp_types \- get a list of time
+stamp types supported by a capture device, and free that list
+.SH SYNOPSIS
+.nf
+.ft B
+#include <pcap/pcap.h>
+.ft
+.LP
+.ft B
+int pcap_list_tstamp_types(pcap_t *p, int **tstamp_typesp);
+void pcap_free_tstamp_types(int *tstamp_types);
+.ft
+.fi
+.SH DESCRIPTION
+.B pcap_list_tstamp_types()
+is used to get a list of the supported time stamp types of the interface
+associated with the pcap descriptor.
+.B pcap_list_tstamp_types()
+allocates an array to hold the list and sets
+.I *tstamp_typesp
+to point to the array.
+See
+.BR pcap-tstamp (@MAN_MISC_INFO@)
+for a list of all the time stamp types.
+.PP
+The caller is responsible for freeing the array with
+.BR pcap_free_tstamp_types() ,
+which frees the list pointed to by
+.IR tstamp_types .
+.SH RETURN VALUE
+.B pcap_list_tstamp_types()
+returns the number of time stamp types in the array on success and
+.B PCAP_ERROR
+on failure.
+A return value of one means that the only time stamp type supported is
+the one in the list, which is the capture device's default time stamp
+type.  A return value of zero means that the only time stamp type
+supported is
+.BR PCAP_TSTAMP_HOST ,
+which is the capture device's default time stamp type (only older
+versions of libpcap will return that; newer versions will always return
+one or more types).
+If
+.B PCAP_ERROR
+is returned,
+.B pcap_geterr(3PCAP)
+or
+.B pcap_perror(3PCAP)
+may be called with
+.I p
+as an argument to fetch or display the error text.
+.SH BACKWARD COMPATIBILITY
+.PP
+These functions became available in libpcap release 1.2.1.  In previous
+releases, the time stamp type cannot be set; only the default time stamp
+type offered by a capture source is available.
+.SH SEE ALSO
+pcap(3PCAP), pcap_tstamp_type_val_to_name(3PCAP),
+pcap-tstamp(@MAN_MISC_INFO@)