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#!/bin/sh
# (C) 2008 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
# Licensed under the GPL v.2
LIBDUMA_SO=
case "$1" in
-on)
case "${LD_PRELOAD}" in
*${LIBDUMA_SO}*) ;;
*) LD_PRELOAD="${LIBDUMA_SO} ${LD_PRELOAD}";;
esac
shift
;;
-off)
LD_PRELOAD="${LD_PRELOAD//${LIBDUMA_SO}/}"
shift
;;
-show)
case "${LD_PRELOAD}" in
*${LIBDUMA_SO}*) echo "duma is enabled";;
*) echo "duma is disabled";;
esac
exit 0
;;
"")
cat <<_EOF_
Usage:
. $0 <-on|-off|-show>
Sets, unsets or show DUMA usage.
$0 <executable [arg...]>
Execute 'executable' (with arguments 'args') using DUMA.
_EOF_
false # Don't 'exit', we could well be source'd
;;
*)
exec "$0" -on "$@"
;;
esac
export LD_PRELOAD
if [ -n "$1" ]; then
exec "$@"
fi
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