2009-03-21 20:43:56 +00:00
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.\" Copyright (c) 1994, 1996, 1997
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.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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2019-10-06 04:26:37 +00:00
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.TH PCAP_SET_DATALINK 3PCAP "25 July 2018"
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2009-03-21 20:43:56 +00:00
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.SH NAME
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pcap_set_datalink \- set the link-layer header type to be used by a
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capture device
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.SH SYNOPSIS
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.nf
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.ft B
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#include <pcap/pcap.h>
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.ft
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.LP
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.ft B
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int pcap_set_datalink(pcap_t *p, int dlt);
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.ft
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.fi
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.SH DESCRIPTION
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.B pcap_set_datalink()
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2012-01-31 17:22:07 +00:00
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is used to set the current link-layer header type of the pcap descriptor
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2009-03-21 20:43:56 +00:00
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to the type specified by
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.IR dlt .
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.SH RETURN VALUE
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.B pcap_set_datalink()
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2019-10-06 04:26:37 +00:00
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returns 0 on success and
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.B PCAP_ERROR
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on failure. If
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.B PCAP_ERROR
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is returned,
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.B pcap_geterr(3PCAP)
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2009-03-21 20:43:56 +00:00
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or
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2019-10-06 04:26:37 +00:00
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.B pcap_perror(3PCAP)
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2009-03-21 20:43:56 +00:00
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may be called with
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.I p
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as an argument to fetch or display the error text.
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.SH SEE ALSO
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2019-10-06 04:26:37 +00:00
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pcap(3PCAP), pcap_datalink_name_to_val(3PCAP)
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