From 7adcb5b605cc1328a3084c334f4697ec9771936c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 19:13:01 +0200 Subject: Adding upstream version 4.99.4. Signed-off-by: Daniel Baumann --- print-beep.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 print-beep.c (limited to 'print-beep.c') diff --git a/print-beep.c b/print-beep.c new file mode 100644 index 0000000..76017ea --- /dev/null +++ b/print-beep.c @@ -0,0 +1,69 @@ +/* + * Copyright (C) 2000, Richard Sharpe + * + * This software may be distributed either under the terms of the + * BSD-style license that accompanies tcpdump or under the GNU GPL + * version 2 or later. + * + * print-beep.c + * + */ + +/* \summary: Blocks Extensible Exchange Protocol (BEEP) printer */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include "netdissect-stdinc.h" + +#include + +#include "netdissect.h" + +/* Check for a string but not go beyond length + * Return TRUE on match, FALSE otherwise + * + * Looks at the first few chars up to tl1 ... + */ + +static int +l_strnstart(netdissect_options *ndo, const char *tstr1, u_int tl1, + const char *str2, u_int l2) +{ + if (!ND_TTEST_LEN(str2, tl1)) { + /* + * We don't have tl1 bytes worth of captured data + * for the string, so we can't check for this + * string. + */ + return 0; + } + if (tl1 > l2) + return 0; + + return (strncmp(tstr1, str2, tl1) == 0 ? 1 : 0); +} + +void +beep_print(netdissect_options *ndo, const u_char *bp, u_int length) +{ + + ndo->ndo_protocol = "beep"; + if (l_strnstart(ndo, "MSG", 4, (const char *)bp, length)) /* A REQuest */ + ND_PRINT(" BEEP MSG"); + else if (l_strnstart(ndo, "RPY ", 4, (const char *)bp, length)) + ND_PRINT(" BEEP RPY"); + else if (l_strnstart(ndo, "ERR ", 4, (const char *)bp, length)) + ND_PRINT(" BEEP ERR"); + else if (l_strnstart(ndo, "ANS ", 4, (const char *)bp, length)) + ND_PRINT(" BEEP ANS"); + else if (l_strnstart(ndo, "NUL ", 4, (const char *)bp, length)) + ND_PRINT(" BEEP NUL"); + else if (l_strnstart(ndo, "SEQ ", 4, (const char *)bp, length)) + ND_PRINT(" BEEP SEQ"); + else if (l_strnstart(ndo, "END", 4, (const char *)bp, length)) + ND_PRINT(" BEEP END"); + else + ND_PRINT(" BEEP (payload or undecoded)"); +} -- cgit v1.2.3