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PCAP_DUMP_OPEN(3)	   Library Functions Manual	     PCAP_DUMP_OPEN(3)

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_open_append(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 "-" is 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 time stamp precision,	link-layer  type,  and
       snapshot	 length	 from  p  are used as the link-layer type and snapshot
       length of the output file.

       pcap_dump_open_append() is like pcap_dump_open but does not create  the
       file  if	it does	not exist and, if it does already exist, and is	a pcap
       file with the same byte order as	the host opening the file, and has the
       same  time stamp	precision, link-layer header type, and snapshot	length
       as p, it	will write new packets at the end of the 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(3),	   pcap_create(3),   pcap_activate(3),	 pcap_open_offline(3),
       pcap_open_live(3), pcap_open_dead(3), pcap_dump(3), pcap_dump_close(3),
       pcap_geterr(3), pcap-savefile(@MAN_FILE_FORMATS@)

			       16 February 2015		     PCAP_DUMP_OPEN(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO

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