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22 .TH PCAP_OPEN_OFFLINE 3PCAP "5 April 2008"
24 pcap_open_offline, pcap_fopen_offline \- open a saved capture file for reading
28 #include <pcap/pcap.h>
33 char errbuf[PCAP_ERRBUF_SIZE];
37 pcap_t *pcap_open_offline(const char *fname, char *errbuf);
38 pcap_t *pcap_fopen_offline(FILE *fp, char *errbuf);
42 .B pcap_open_offline()
43 is called to open a ``savefile'' for reading.
46 specifies the name of the file to open. The file can have the pcap file
47 format as described in
48 .BR pcap-savefile (@MAN_FILE_FORMATS@),
49 which is the file format used by, among other programs,
53 or can have the pcap-ng file format, although not all pcap-ng files can
55 The name "-" in a synonym for
58 Alternatively, you may call
59 .B pcap_fopen_offline()
60 to read dumped data from an existing open stream
62 Note that on Windows, that stream should be opened in binary mode.
64 .B pcap_open_offline()
66 .B pcap_fopen_offline()
76 is filled in with an appropriate error message.
78 is assumed to be able to hold at least
82 pcap(3PCAP), pcap-savefile(@MAN_FILE_FORMATS@)