xref: /aosp_15_r20/external/tcpdump/missing/datalinks.c (revision 05b00f6010a2396e3db2409989fc67270046269f)
1*05b00f60SXin Li /*
2*05b00f60SXin Li  * Copyright (c) 1993, 1994, 1995, 1996, 1997, 1998
3*05b00f60SXin Li  *	The Regents of the University of California.  All rights reserved.
4*05b00f60SXin Li  *
5*05b00f60SXin Li  * Redistribution and use in source and binary forms, with or without
6*05b00f60SXin Li  * modification, are permitted provided that the following conditions
7*05b00f60SXin Li  * are met:
8*05b00f60SXin Li  * 1. Redistributions of source code must retain the above copyright
9*05b00f60SXin Li  *    notice, this list of conditions and the following disclaimer.
10*05b00f60SXin Li  * 2. Redistributions in binary form must reproduce the above copyright
11*05b00f60SXin Li  *    notice, this list of conditions and the following disclaimer in the
12*05b00f60SXin Li  *    documentation and/or other materials provided with the distribution.
13*05b00f60SXin Li  * 3. All advertising materials mentioning features or use of this software
14*05b00f60SXin Li  *    must display the following acknowledgement:
15*05b00f60SXin Li  *	This product includes software developed by the Computer Systems
16*05b00f60SXin Li  *	Engineering Group at Lawrence Berkeley Laboratory.
17*05b00f60SXin Li  * 4. Neither the name of the University nor of the Laboratory may be used
18*05b00f60SXin Li  *    to endorse or promote products derived from this software without
19*05b00f60SXin Li  *    specific prior written permission.
20*05b00f60SXin Li  *
21*05b00f60SXin Li  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22*05b00f60SXin Li  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23*05b00f60SXin Li  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24*05b00f60SXin Li  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25*05b00f60SXin Li  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26*05b00f60SXin Li  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27*05b00f60SXin Li  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*05b00f60SXin Li  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29*05b00f60SXin Li  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30*05b00f60SXin Li  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31*05b00f60SXin Li  * SUCH DAMAGE.
32*05b00f60SXin Li  */
33*05b00f60SXin Li 
34*05b00f60SXin Li #ifdef HAVE_CONFIG_H
35*05b00f60SXin Li #include <config.h>
36*05b00f60SXin Li #endif
37*05b00f60SXin Li 
38*05b00f60SXin Li #include <netdissect-stdinc.h>
39*05b00f60SXin Li 
40*05b00f60SXin Li #include <pcap.h>
41*05b00f60SXin Li #include <stdlib.h>
42*05b00f60SXin Li #include <stdio.h>
43*05b00f60SXin Li 
44*05b00f60SXin Li #include "pcap-missing.h"
45*05b00f60SXin Li 
46*05b00f60SXin Li /*
47*05b00f60SXin Li  * Stub versions for platforms that don't support them.
48*05b00f60SXin Li  */
49*05b00f60SXin Li int
pcap_list_datalinks(pcap_t * p,int ** dlt_buffer)50*05b00f60SXin Li pcap_list_datalinks(pcap_t *p, int **dlt_buffer)
51*05b00f60SXin Li {
52*05b00f60SXin Li 	/*
53*05b00f60SXin Li 	 * This platform doesn't support changing the DLT for an
54*05b00f60SXin Li 	 * interface.  Return a list of DLTs containing only the
55*05b00f60SXin Li 	 * DLT this device supports.
56*05b00f60SXin Li 	 */
57*05b00f60SXin Li 	*dlt_buffer = (int*)malloc(sizeof(**dlt_buffer));
58*05b00f60SXin Li 	if (*dlt_buffer == NULL)
59*05b00f60SXin Li 		return (-1);
60*05b00f60SXin Li 	**dlt_buffer = pcap_datalink(p);
61*05b00f60SXin Li 	return (1);
62*05b00f60SXin Li }
63