pcap_file(3) [netbsd man page]

PCAP_FILE(3)						     Library Functions Manual						      PCAP_FILE(3)

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 net-
       work 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(3), pcap_open_offline(3)

								   5 April 2008 						      PCAP_FILE(3)

PCAP_OPEN_OFFLINE(3PCAP)												  PCAP_OPEN_OFFLINE(3PCAP)

NAME

       pcap_open_offline, pcap_fopen_offline - open a saved capture file for reading

SYNOPSIS

       #include <pcap/pcap.h>

       char errbuf[PCAP_ERRBUF_SIZE];

       pcap_t *pcap_open_offline(const char *fname, char *errbuf);
       pcap_t *pcap_fopen_offline(FILE *fp, char *errbuf);

DESCRIPTION

       pcap_open_offline() is called to open a ``savefile'' for reading.

       fname  specifies  the  name of the file to open. The file can have the pcap file format as described in pcap-savefile(5), which is the file
       format used by, among other programs, tcpdump(1) and tcpslice(1), or can have the pcap-ng file format, although not all pcap-ng	files  can
       be read.  The name "-" in a synonym for stdin.

       Alternatively,  you  may  call pcap_fopen_offline() to read dumped data from an existing open stream fp.  Note that on Windows, that stream
       should be opened in binary mode.

RETURN VALUE

       pcap_open_offline() and pcap_fopen_offline() return a pcap_t * on success and NULL on failure.  If NULL is returned, errbuf  is	filled	in
       with an appropriate error message.  errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.

SEE ALSO

       pcap(3PCAP), pcap-savefile(5)

								   5 April 2008 					  PCAP_OPEN_OFFLINE(3PCAP)