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66 lines
2.1 KiB
66 lines
2.1 KiB
.\" Copyright (c) 1994, 1996, 1997 |
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.\" The Regents of the University of California. All rights reserved. |
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.\" |
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.\" Redistribution and use in source and binary forms, with or without |
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.\" modification, are permitted provided that: (1) source code distributions |
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.\" retain the above copyright notice and this paragraph in its entirety, (2) |
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.\" distributions including binary code include the above copyright notice and |
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.\" this paragraph in its entirety in the documentation or other materials |
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.\" provided with the distribution, and (3) all advertising materials mentioning |
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.\" features or use of this software display the following acknowledgement: |
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.\" ``This product includes software developed by the University of California, |
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.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
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.\" the University nor the names of its contributors may be used to endorse |
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.\" or promote products derived from this software without specific prior |
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.\" written permission. |
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.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
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.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
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.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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.\" |
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.TH PCAP_FILENO 3PCAP "7 April 2014" |
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.SH NAME |
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pcap_fileno \- get the file descriptor for a live capture |
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.SH SYNOPSIS |
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.nf |
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.ft B |
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#include <pcap/pcap.h> |
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.ft |
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.LP |
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.ft B |
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int pcap_fileno(pcap_t *p); |
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.ft |
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.fi |
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.SH DESCRIPTION |
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If |
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.I p |
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refers to a network device that was opened for a live capture using |
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a combination of |
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.B pcap_create() |
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and |
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.BR pcap_activate() , |
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or using |
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.BR pcap_open_live() , |
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.B pcap_fileno() |
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returns the file descriptor from which captured packets are read. |
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.LP |
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If |
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.I p |
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refers to a ``savefile'' that was opened using functions such as |
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.BR pcap_open_offline() |
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or |
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.BR pcap_fopen_offline() , |
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a ``dead'' |
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.B pcap_t |
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opened using |
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.BR pcap_open_dead() , |
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or a |
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.B pcap_t |
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that was created with |
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.B pcap_create() |
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but that has not yet been activated with |
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.BR pcap_activate() , |
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it returns \-1. |
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.SH SEE ALSO |
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pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP), |
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pcap_open_live(3PCAP), pcap_open_offline(3PCAP), |
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pcap_fopen_offline(3PCAP), pcap_open_dead(3PCAP)
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