nexmon – Blame information for rev 1

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1 office 1 /*
2 * Copyright (C) 2000, Richard Sharpe
3 *
4 * This software may be distributed either under the terms of the
5 * BSD-style licence that accompanies tcpdump or under the GNU GPL
6 * version 2 or later.
7 *
8 * print-beep.c
9 *
10 */
11  
12 #define NETDISSECT_REWORKED
13 #ifdef HAVE_CONFIG_H
14 #include "config.h"
15 #endif
16  
17 #include <tcpdump-stdinc.h>
18  
19 #include <string.h>
20  
21 #include "interface.h"
22  
23 /* Check for a string but not go beyond length
24 * Return TRUE on match, FALSE otherwise
25 *
26 * Looks at the first few chars up to tl1 ...
27 */
28  
29 static int
30 l_strnstart(const char *tstr1, u_int tl1, const char *str2, u_int l2)
31 {
32  
33 if (tl1 > l2)
34 return 0;
35  
36 return (strncmp(tstr1, str2, tl1) == 0 ? 1 : 0);
37 }
38  
39 void
40 beep_print(netdissect_options *ndo, const u_char *bp, u_int length)
41 {
42  
43 if (l_strnstart("MSG", 4, (const char *)bp, length)) /* A REQuest */
44 ND_PRINT((ndo, " BEEP MSG"));
45 else if (l_strnstart("RPY ", 4, (const char *)bp, length))
46 ND_PRINT((ndo, " BEEP RPY"));
47 else if (l_strnstart("ERR ", 4, (const char *)bp, length))
48 ND_PRINT((ndo, " BEEP ERR"));
49 else if (l_strnstart("ANS ", 4, (const char *)bp, length))
50 ND_PRINT((ndo, " BEEP ANS"));
51 else if (l_strnstart("NUL ", 4, (const char *)bp, length))
52 ND_PRINT((ndo, " BEEP NUL"));
53 else if (l_strnstart("SEQ ", 4, (const char *)bp, length))
54 ND_PRINT((ndo, " BEEP SEQ"));
55 else if (l_strnstart("END", 4, (const char *)bp, length))
56 ND_PRINT((ndo, " BEEP END"));
57 else
58 ND_PRINT((ndo, " BEEP (payload or undecoded)"));
59 }