1 files changed, 19 insertions, 0 deletions
diff --git a/stime.awk b/stime.awk
new file mode 100644
index 0000000..429cf01
--- /dev/null
+++ b/stime.awk
@@ -0,0 +1,19 @@
+$6 !~ /^ack/ && $5 !~ /[SFR]/	{
+	# given a tcpdump ftp trace, output one line for each send
+	# in the form
+	#   <send time> <seq no>
+	# where <send time> is the time packet was sent (in seconds with
+	# zero at time of first packet) and <seq no> is the tcp sequence
+	# number of the packet divided by 1024 (i.e., Kbytes sent).
+	#
+	# convert time to seconds
+	n = split ($1,t,":")
+	tim = t[1]*3600 + t[2]*60 + t[3]
+	if (! tzero) {
+		tzero = tim
+		OFS = "\t"
+	}
+	# get packet sequence number
+	i = index($6,":")
+	printf "%7.2f\t%g\n", tim-tzero, substr($6,1,i-1)/1024
+	}