diff options
Diffstat (limited to 'contrib/libpcap/pcap.3')
| -rw-r--r-- | contrib/libpcap/pcap.3 | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/contrib/libpcap/pcap.3 b/contrib/libpcap/pcap.3 index 1e8e27e..69dde16 100644 --- a/contrib/libpcap/pcap.3 +++ b/contrib/libpcap/pcap.3 @@ -1,4 +1,4 @@ -.\" @(#) $Header: /tcpdump/master/libpcap/pcap.3,v 1.64 2004/12/17 21:27:54 guy Exp $ +.\" @(#) $Header: /tcpdump/master/libpcap/pcap.3,v 1.64.2.4 2005/06/03 20:36:56 guy Exp $ .\" .\" Copyright (c) 1994, 1996, 1997 .\" The Regents of the University of California. All rights reserved. @@ -59,6 +59,10 @@ bpf_u_int32 *maskp, char *errbuf) .ft .LP .ft B +typedef void (*pcap_handler)(u_char *user, const struct pcap_pkthdr *h, +.ti +8 + const u_char *bytes); +.ft B int pcap_dispatch(pcap_t *p, int cnt, .ti +8 pcap_handler callback, u_char *user) @@ -75,7 +79,8 @@ int pcap_compile(pcap_t *p, struct bpf_program *fp, .ti +8 char *str, int optimize, bpf_u_int32 netmask) int pcap_setfilter(pcap_t *p, struct bpf_program *fp) -void pcap_freecode(struct bpf_program *); +void pcap_freecode(struct bpf_program *) +int pcap_setdirection(pcap_t *p, direction_t d) .ft .LP .ft B @@ -118,6 +123,7 @@ const char *pcap_lib_version(void) .ft B void pcap_close(pcap_t *p) int pcap_dump_flush(pcap_dumper_t *p) +long pcap_dump_ftell(pcap_dumper_t *p) FILE *pcap_dump_file(pcap_dumper_t *p) void pcap_dump_close(pcap_dumper_t *p) .ft @@ -773,6 +779,31 @@ when that BPF program is no longer needed, for example after it has been made the filter program for a pcap structure by a call to .BR pcap_setfilter() . .PP +.B pcap_setdirection() +is used to specify a direction that packets will be captured. +.I direction_t +is one of the constants +.BR D_IN , +.B D_OUT +or +.BR D_INOUT . +.B D_IN +will only capture packets received by the device, +.B D_OUT +will only capture packets sent by the device and +.B D_INOUT +will capture packets received by or sent by the device. +.B D_INOUT +is the default setting if this function is not called. This isn't +necessarily supported on all platforms; some platforms might return an +error, and some other platforms might not support +.BR D_OUT . +This operation is not supported if a ``savefile'' is being read. +.B \-1 +is returned on failure, +.B 0 +is returned on success. +.PP .B pcap_datalink() returns the link layer type; link layer types it can return include: .PP @@ -1230,6 +1261,15 @@ but not yet written to the ``savefile'' will be written. .B \-1 is returned on error, 0 on success. .PP +.B pcap_dump_ftell() +returns the current file position for the ``savefile'', representing the +number of bytes written by +.B pcap_dump_open() +and +.BR pcap_dump() . +.B \-1 +is returned on error. +.PP .B pcap_dump_close() closes the ``savefile.'' .PP |
