pcap_file (3)

Leading comments

 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)
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(The comments found at the beginning of the groff file "man3/pcap_file.3pcap".)

NAME

pcap_file - get the standard I/O stream for a savefile being read

SYNOPSIS

#include <pcap/pcap.h>

FILE *pcap_file(pcap_t *p);

DESCRIPTION

pcap_file() returns the standard I/O stream of the ``savefile,'' if a ``savefile'' was opened with pcap_open_offline(), or NULL, if a network device was opened with pcap_create() and pcap_activate(), or with pcap_open_live().

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 pcap_file() should, if possible, use calls that support large files on the return value of pcap_file() or the value returned by fileno() when passed the return value of pcap_file().

SEE ALSO

pcap(3PCAP), pcap_open_offline(3PCAP)