Make "tflag" count the number of "-t"s, to make it more obvious what

tflag values correspond to what output formats (e.g., 4 means "-tttt").

Switch on the tflag value to determine whether to call "gmt2local()" to
set "thiszone", just as we switch on it to determine the format for time
stamps, to make it more obvious in what cases we call it.

tcpdump.c

@@ -30,7 +30,7 @@ static const char copyright[] _U_ =
     "@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\
 The Regents of the University of California.  All rights reserved.\n";
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.243 2004-06-15 00:00:04 guy Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.244 2004-06-15 23:05:05 guy Exp $ (LBL)";
 #endif
 
 /*
@@ -420,7 +420,6 @@ main(int argc, char **argv)
 
         gndo->ndo_Oflag=1;
 	gndo->ndo_Rflag=1;
-	gndo->ndo_tflag=1;
 	gndo->ndo_dlt=-1;
 	gndo->ndo_printf=tcpdump_printf;
 	gndo->ndo_error=ndo_error;
@@ -644,7 +643,7 @@ main(int argc, char **argv)
 			break;
 
 		case 't':
-			--tflag;
+			++tflag;
 			break;
 
 		case 'T':
@@ -741,8 +740,13 @@ main(int argc, char **argv)
 			/* NOTREACHED */
 		}
 
-	if (tflag > 0 || tflag == -3)
+	switch (tflag) {
+
+	case 0: /* Default */
+	case 4: /* Default + Date*/
 		thiszone = gmt2local(0);
+		break;
+	}
 
 #ifdef WITH_CHROOT
 	/* if run as root, prepare for chrooting */

util.c

@@ -21,7 +21,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.93 2004-04-29 02:15:16 mcr Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.94 2004-06-15 23:05:06 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -116,19 +116,25 @@ ts_print(register const struct timeval *tvp)
 	static unsigned b_sec;
 	static unsigned b_usec;
 
-	switch(tflag) {
-	case 1: /* Default */
+	switch (tflag) {
+
+	case 0: /* Default */
 		s = (tvp->tv_sec + thiszone) % 86400;
 		(void)printf("%02d:%02d:%02d.%06u ",
 			     s / 3600, (s % 3600) / 60, s % 60,
 			     (unsigned)tvp->tv_usec);
 		break;
-	case -1: /* Unix timeval style */
+
+	case 1: /* No time stamp */
+		break;
+
+	case 2: /* Unix timeval style */
 		(void)printf("%u.%06u ",
 			     (unsigned)tvp->tv_sec,
 			     (unsigned)tvp->tv_usec);
 		break;
-	case -2:
+
+	case 3: /* Microseconds since previous packet */
 		if (b_sec == 0) {
 			printf("000000 ");
 		} else {
@@ -146,7 +152,8 @@ ts_print(register const struct timeval *tvp)
 		b_sec = tvp->tv_sec;
 		b_usec = tvp->tv_usec;
 		break;
-	case -3: /* Default + Date*/
+
+	case 4: /* Default + Date*/
 		s = (tvp->tv_sec + thiszone) % 86400;
 		Time = (tvp->tv_sec + thiszone) - s;
 		tm = gmtime (&Time);