* Copyright (C) 2000, Richard Sharpe
*
* This software may be distributed either under the terms of the
- * BSD-style licence that accompanies tcpdump or under the GNU GPL
+ * BSD-style license that accompanies tcpdump or under the GNU GPL
* version 2 or later.
*
* print-beep.c
*
*/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* \summary: Blocks Extensible Exchange Protocol (BEEP) printer */
-#include <tcpdump-stdinc.h>
+#include <config.h>
+
+#include "netdissect-stdinc.h"
#include <string.h>
*/
static int
-l_strnstart(const char *tstr1, u_int tl1, const char *str2, u_int l2)
+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;
beep_print(netdissect_options *ndo, const u_char *bp, u_int length)
{
- if (l_strnstart("MSG", 4, (const char *)bp, length)) /* A REQuest */
- ND_PRINT((ndo, " BEEP MSG"));
- else if (l_strnstart("RPY ", 4, (const char *)bp, length))
- ND_PRINT((ndo, " BEEP RPY"));
- else if (l_strnstart("ERR ", 4, (const char *)bp, length))
- ND_PRINT((ndo, " BEEP ERR"));
- else if (l_strnstart("ANS ", 4, (const char *)bp, length))
- ND_PRINT((ndo, " BEEP ANS"));
- else if (l_strnstart("NUL ", 4, (const char *)bp, length))
- ND_PRINT((ndo, " BEEP NUL"));
- else if (l_strnstart("SEQ ", 4, (const char *)bp, length))
- ND_PRINT((ndo, " BEEP SEQ"));
- else if (l_strnstart("END", 4, (const char *)bp, length))
- ND_PRINT((ndo, " BEEP END"));
+ 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((ndo, " BEEP (payload or undecoded)"));
+ ND_PRINT(" BEEP (payload or undecoded)");
}