set remote dir as a temp dir in order to handle multiple sessions

sshrc.conf

@@ -1 +1 @@
-DSTDIR=/tmp/mstagliano_conf.d
+DSTPREFIX=mstagliano

sshrc.sh

@@ -5,21 +5,20 @@ set -eu
 CURDIR=$(dirname $(readlink "$0"))
 CONFHOME="~/.local/share/jssh/conf.d"
 CONFALLBACK="$CURDIR/conf.d"
+
 [[ -d $CONFHOME ]] && CONFDIR=$CONFHOME || CONFDIR=$CONFALLBACK
 
 [[ -r $CONFDIR/bashrc ]] || { echo "Confdir or bashrc missing or lack of permissions!"; exit 1; }
-DSTDIR=/tmp/conf.d
 
-[[ -f $CURDIR/sshrc.conf ]] && source $CURDIR/sshrc.conf
+DSTPREFIX=jssh
 
-TARGET=$1
+[[ -f $CURDIR/sshrc.conf ]] && source $CURDIR/sshrc.conf
 
 arc=$(tar czf - -C $CONFDIR $(find $CONFDIR -type f -printf "%f ")| base64 -w0)
 [[ $(echo $arc | wc -c) -le 65535 ]] || { echo "Files size too large!"; exit 1; }
 
 COMMANDS="
-export JSSHHOME=$'"$DSTDIR"';
-mkdir \$JSSHHOME;
+export JSSHHOME=\$(mktemp -d /tmp/$'"${DSTPREFIX}"'.XXXXXXXXXX);
 echo $'"$arc"' | base64 -di | tar -xzf - -C \$JSSHHOME;
 trap \"rm -rf \$JSSHHOME; exit\" 0;
 bash --rcfile \$JSSHHOME/bashrc -i