2 * Copyright (C) 2000, Richard Sharpe
4 * This software may be distributed either under the terms of the
5 * BSD-style license that accompanies tcpdump or under the GNU GPL
12 /* \summary: Blocks Extensible Exchange Protocol (BEEP) printer */
18 #include <netdissect-stdinc.h>
22 #include "netdissect.h"
24 /* Check for a string but not go beyond length
25 * Return TRUE on match, FALSE otherwise
27 * Looks at the first few chars up to tl1 ...
31 l_strnstart(const char *tstr1, u_int tl1, const char *str2, u_int l2)
37 return (strncmp(tstr1, str2, tl1) == 0 ? 1 : 0);
41 beep_print(netdissect_options *ndo, const u_char *bp, u_int length)
44 if (l_strnstart("MSG", 4, (const char *)bp, length)) /* A REQuest */
45 ND_PRINT((ndo, " BEEP MSG"));
46 else if (l_strnstart("RPY ", 4, (const char *)bp, length))
47 ND_PRINT((ndo, " BEEP RPY"));
48 else if (l_strnstart("ERR ", 4, (const char *)bp, length))
49 ND_PRINT((ndo, " BEEP ERR"));
50 else if (l_strnstart("ANS ", 4, (const char *)bp, length))
51 ND_PRINT((ndo, " BEEP ANS"));
52 else if (l_strnstart("NUL ", 4, (const char *)bp, length))
53 ND_PRINT((ndo, " BEEP NUL"));
54 else if (l_strnstart("SEQ ", 4, (const char *)bp, length))
55 ND_PRINT((ndo, " BEEP SEQ"));
56 else if (l_strnstart("END", 4, (const char *)bp, length))
57 ND_PRINT((ndo, " BEEP END"));
59 ND_PRINT((ndo, " BEEP (payload or undecoded)"));