1 /*-
2 * Copyright (c) 2001, 2002, 2005 Lev Walkin <vlm@lionet.info>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $Id: loop-file.c,v 1.2 2006/04/07 18:58:02 vlm Exp $
27 */
28
29 #include "ipcad.h"
30 #include "opt.h"
31
32 static void
pcap_callback(unsigned char * psp,const struct pcap_pkthdr * ph,const unsigned char * packet)33 pcap_callback(unsigned char *psp, const struct pcap_pkthdr *ph, const unsigned char *packet) {
34 return process_packet_data((packet_source_t *)psp,
35 packet, ph->caplen, 0, 0);
36 }
37
38 void *
process_file(void * psp)39 process_file(void *psp) {
40 packet_source_t *ps = psp;
41 int pdr;
42
43 assert(ps->iface_type == IFACE_FILE);
44
45 while(!signoff_now) {
46 if(ps->iface.file.dev == NULL) { sleep(5); continue; }
47 pdr = pcap_loop(ps->iface.file.dev, 0,
48 pcap_callback, (unsigned char *)ps);
49 if(pdr <= 0)
50 break;
51 }
52
53 ps->state = PST_FINISHED;
54
55 return NULL;
56 }
57