Package: netcat-openbsd
Version: 1.89-4
Severity: normal
I was using this shell script to stress-test a TCP server I'm working on:
> #!/bin/bash
>
> action() {
> local delay=$1; shift
> local n=$1; shift
>
> while [ $((n--)) -gt 0 ] ; do
> echo foobar
> sleep $delay
> done
> }
>
> action $1 $2 | nc -C some-host some-port | wc
The server takes CRLF-separated commands/requests, and I was puzzled when
I found that it reported receiving fewer commands than I sent.
After debugging the server for a while with no luck, I finally saw that
the TCP stream from netcat contained some "foobar\nfoobar\r\n" patterns, e.g.
immediately after connection.
Whatever method the -C option uses to ensure translation of CR to CRLF, it's
not foolproof. Maybe only slow manual input was considered.
My workaround was to stop using -C, and to add CRLF explicitly using
echo -ne foobar\r\n instead.
BR,
Jorgen
-- System Information:
Debian Release: 6.0.7
APT prefers stable
APT policy: (500, 'stable')
Architecture: powerpc (ppc)
Kernel: Linux 3.4.10
Locale: LANG=sv_SE, LC_CTYPE=sv_SE (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/dash
Versions of packages netcat-openbsd depends on:
ii libc6 2.11.3-4 Embedded GNU C Library: Shared lib
ii libglib2.0-0 2.24.2-1 The GLib library of C routines
netcat-openbsd recommends no packages.
netcat-openbsd suggests no packages.
-- no debconf information
--
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
