test: use random port/rpcport for bitcoind.

This means we don't get confused if a testnet bitcoind already running.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

daemon/test/scripts/setup.sh

@@ -11,10 +11,16 @@ fi
 rm -rf $DATADIR
 mkdir $DATADIR
 
+# Find a free port (racy, but hey)
+PORT=`findport 18332`
+RPCPORT=`findport $(($PORT + 1))`
+
 # Create appropriate config file so cmdline matches.
 cat > $DATADIR/bitcoin.conf <<EOF
 regtest=1
 testnet=0
+rpcport=$RPCPORT
+port=$PORT
 EOF
 
 $DAEMON &

daemon/test/scripts/vars.sh

@@ -11,4 +11,10 @@ else
 	SEQ_ENFORCEMENT=false
 fi
 
+findport()
+{
+    PORT=$1
+    while netstat -ntl | grep -q ":$PORT "; do PORT=$(($PORT + 1)); done
+    echo $PORT
+}
 #PREFIX="valgrind --vgdb-error=1"