03-31-2014
Hint: How about using "one" awk command to read in all the records from the input file, print them in the required format and then output to new file?
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TRPT(8) BSD System Manager's Manual TRPT(8)
NAME
trpt -- transliterate protocol trace
SYNOPSIS
trpt [-a] [-f] [-j] [-p hex-address] [-s] [-t] [system [core]]
DESCRIPTION
The trpt utility interrogates the buffer of TCP trace records created when a socket is marked for ``debugging'' (see setsockopt(2)), and
prints a readable description of these records. When no options are supplied, trpt prints all the trace records found in the system grouped
according to TCP connection protocol control block (PCB).
The following options may be used to alter this behavior:
-a In addition to the normal output, print the values of the source and destination addresses for each packet recorded.
-f Follow the trace as it occurs, waiting a short time for additional records each time the end of the log is reached.
-j Just give a list of the protocol control block addresses for which there are trace records.
-p Show only trace records associated with the protocol control block at the given address hex-address.
-s In addition to the normal output, print a detailed description of the packet sequencing information.
-t In addition to the normal output, print the values for all timers at each point in the trace.
The recommended use of trpt is as follows. Isolate the problem and enable debugging on the socket(s) involved in the connection. Find the
address of the protocol control blocks associated with the sockets using the -A option to netstat(1). Then run trpt with the -p option, sup-
plying the associated protocol control block addresses. The -f option can be used to follow the trace log once the trace is located. If
there are many sockets using the debugging option, the -j option may be useful in checking to see if any trace records are present for the
socket in question.
If debugging is being performed on a system or core file other than the default, the last two arguments may be used to supplant the defaults.
FILES
/boot/kernel/kernel
/dev/kmem
DIAGNOSTICS
no namelist When the system image does not contain the proper symbols to find the trace buffer; others which should be self explanatory.
SEE ALSO
netstat(1), setsockopt(2)
HISTORY
The trpt utility appeared in 4.2BSD.
BUGS
Should also print the data for each input or output, but this is not saved in the trace record.
The output format is inscrutable and should be described here.
BSD
December 11, 1993 BSD