The netcat utility likes to exit when it receives an empty packet (as it thinks this means EOF). This can easily occur when working with command line editing as this behavior will be triggered when using backspace. Or with tabs and command line completion. Since the local ncb util does not have this "feature" and it supports broadcast udp, default to using that rather than netcat.
Signed-off-by: Mike Frysinger vapier@gentoo.org --- tools/netconsole | 18 +++++++++++++++--- 1 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/tools/netconsole b/tools/netconsole index 09c8981..aa30d9b 100755 --- a/tools/netconsole +++ b/tools/netconsole @@ -31,12 +31,24 @@ if [ -z "${ip}" ] || [ -n "$3" ] ; then fi
for nc in netcat nc ; do - type ${nc} >/dev/null && break + type ${nc} >/dev/null 2>&1 && break done
trap "stty icanon echo intr ^C" 0 2 3 5 10 13 15 echo "NOTE: the interrupt signal (normally ^C) has been remapped to ^T"
stty -icanon -echo intr ^T -${nc} -u -l -p ${port} < /dev/null & -exec ${nc} -u ${ip} ${port} +( +if [ -x ./ncb ] ; then + exec ./ncb ${port} +elif [ -x ${0%/*}/ncb ] ; then + exec ${0%/*}/ncb ${port} +else + while ${nc} -u -l -p ${port} < /dev/null ; do + : + done +fi +) & +pid=$! +${nc} -u ${ip} ${port} +kill $pid 2>/dev/null