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From: | Jim Snyder |
Subject: | udp bug in gawk? |
Date: | Thu, 1 May 2008 14:27:47 -0400 |
I've attached a pair of tcp scripts and a pair of udp scripts. Unless I've mistyped, the t*.awk files are the tcp scripts given in 2.1.2.1 of the attached pdf. They work. Unless I've mistyped, the u*.awk files are the udp scripts given in 2.1.2.2. They don't work. ______________________ Symptom with udp: both processes hang until interrupted. ______________________ System configuration: ______________________ 1) Output of uname -a: Linux labrea 2.6.24.4-64.fc8 #1 SMP Sat Mar 29 09:15:49 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux a) I've tried this with FC8 rpm gawk-3.1.5-15.fc7 b) I've also compiled gawk-3.1.6 from source on a CMU gnu mirror, looks the same. Sanity checks.. I turned off the firewall and checked that all ports were open with iptables -L -n I ran 'netstat -a | grep 8888' to verify that no (other) server was listening on port 8888. No dropped packets show up in the system log when the firewall is on, and by default my firewall prints out all udp packets which are not claimed by a firewall rule. ps auxw shows: jhs 3999 0.0 0.0 10868 880 pts/9 S+ 14:01 0:00 gawk -f uin.awk jhs 5277 0.0 0.0 8772 768 pts/6 S+ 14:17 0:00 gawk -f uout.awk netstat -a shows nothing on port 8888, and none of the udp ports seem to match up with the two awk processes. 2) I also tried this on a newly installed kubuntu system: Linux ddtn 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686 GNU/Linux with the same results. ddtn=; gawk -W version GNU Awk 3.1.6 ____________________________________________________________________ jim snyder address@hidden
gawkinet.pdf
Description: Adobe PDF document
tin.awk
Description: Binary data
tout.awk
Description: Binary data
uin.awk
Description: Binary data
uout.awk
Description: Binary data
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