pcap_file(3pcap) [linux man page]

PCAP_FILE(3PCAP)														  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 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(3PCAP), pcap_open_offline(3PCAP)

								   5 April 2008 						  PCAP_FILE(3PCAP)

PCAP_DUMP_OPEN(3PCAP)													     PCAP_DUMP_OPEN(3PCAP)

NAME

       pcap_dump_open, pcap_dump_fopen - open a file to which to write packets

SYNOPSIS

       #include <pcap/pcap.h>

       pcap_dumper_t *pcap_dump_open(pcap_t *p, const char *fname);
       pcap_dumper_t *pcap_dump_fopen(pcap_t *p, FILE *fp);

DESCRIPTION

       pcap_dump_open()  is  called to open a ``savefile'' for writing.  fname specifies the name of the file to open. The file will have the same
       format as those used by tcpdump(1) and tcpslice(1).  The name "-" in a synonym for stdout.

       pcap_dump_fopen() is called to write data to an existing open stream fp.  Note that on Windows, that stream  should  be	opened	in  binary
       mode.

       p  is a capture or ``savefile'' handle returned by an earlier call to pcap_create() and activated by an earlier call to pcap_activate(), or
       returned by an earlier call to pcap_open_offline(), pcap_open_live(), or pcap_open_dead().  The link-layer type and snapshot length from  p
       are used as the link-layer type and snapshot length of the output file.

RETURN VALUES

       A  pointer  to  a  pcap_dumper_t  structure  to	use in subsequent pcap_dump() and pcap_dump_close() calls is returned on success.  NULL is
       returned on failure.  If NULL is returned, pcap_geterr(p) can be used to get the error text.

SEE ALSO

       pcap(3PCAP),   pcap_create(3PCAP),   pcap_activate(3PCAP),    pcap_open_offline(3PCAP),	  pcap_open_live(3PCAP),    pcap_open_dead(3PCAP),
       pcap_dump(3PCAP), pcap_dump_close(3PCAP), pcap_geterr(3PCAP), pcap-savefile(5)

								   5 April 2008 					     PCAP_DUMP_OPEN(3PCAP)