dect
/
libpcap
Archived
1
0
Fork 0

Describe all the cases where pcap_fileno() returns a file descriptor and

where it returns -1.  Based on a patch from Fumiyuki Shimizu.
master
Guy Harris 13 years ago
parent 339d28cefc
commit 6b414c082f
  1. 1
      CREDITS
  2. 37
      pcap_fileno.3pcap

@ -38,6 +38,7 @@ Additional people who have contributed patches:
Florent Drouin <Florent dot Drouin at alcatel-lucent dot fr>
Franz Schaefer <schaefer at mond dot at>
Fulko Hew <fulko dot hew at gmail dot com>
Fumiyuki Shimizu <fumifumi at abacustech dot jp>
Gianluca Varenni <varenni at netgroup-serv dot polito dot it>
Gilbert Hoyek <gil_hoyek at hotmail dot com>
Gisle Vanem <gvanem at broadpark dot no>

@ -33,15 +33,36 @@ int pcap_fileno(pcap_t *p);
.ft
.fi
.SH DESCRIPTION
.B pcap_fileno()
returns the file descriptor number from which captured packets are read,
if a network device was opened with
If
.I p
refers to a network device that was opened for a live capture using
a combination of
.B pcap_create()
and
.B pcap_activate()
or with
.BR pcap_activate() ,
or using
.BR pcap_open_live() ,
or \-1, if a ``savefile'' was opened with
.BR pcap_open_offline() .
.B pcap_fileno()
returns the file descriptor from which captured packets are read.
.LP
If
.I p
refers to a ``savefile'' that was opened using fuctions such as
.BR pcap_open_offline()
or
.BR pcap_fopen_offline() ,
a ``dead''
.B pcap_t
opened using
.BR pcap_open_dead() ,
or a
.B pcap_t
that was created with
.B pcap_create()
but that has not yet been activated with
.BR pcap_activate() ,
it returns \-1.
.SH SEE ALSO
pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP)
pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP),
pcap_open_live(3PCAP), pcap_open_offline(3PCAP),
pcap_fopen_offline(3PCAP), pcap_open_dead(3PCAP)