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pcap_file.3pcap
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Nan Xiao
Update pcap_file.3pcap
26 сен 2024, 12:04
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.TH PCAP_FILE 3PCAP "3 January 2014"
.SH NAME
pcap_file \- get the standard I/O stream for a savefile being read
.SH SYNOPSIS
.nf
.ft B
#include <pcap/pcap.h>
.ft
.LP
.ft B
FILE *pcap_file(pcap_t *p);
.ft
.fi
.SH DESCRIPTION
.BR pcap_file ()
returns the standard I/O stream of the ``savefile'', if a ``savefile''
was opened with
.BR pcap_open_offline (3PCAP),
or
.BR NULL ,
if a network device was opened with
.BR pcap_create (3PCAP)
and
.BR \%pcap_activate (3PCAP),
or with
.BR pcap_open_live (3PCAP).
.PP
Note that the Packet Capture library is usually built with large file
support, so the standard I/O stream of the ``savefile'' might refer to
a file larger than 2 gigabytes; applications that use
.BR pcap_file ()
should, if possible, use calls that support large files on the return
value of
.BR pcap_file ()
or the value returned by
.BR fileno (3)
when passed the return value of
.BR pcap_file ().
.SH SEE ALSO
.BR pcap (3PCAP)