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PCAP_OPEN_OFFLINE(3)       Library Functions Manual       PCAP_OPEN_OFFLINE(3)



NAME
       pcap_open_offline, pcap_fopen_offline - open a saved capture file for
       reading

SYNOPSIS
       #include <&lt;pcap/pcap.h>&gt;

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



                                 5 April 2008             PCAP_OPEN_OFFLINE(3)