Add service scripts for rlyeh

packages/rlyeh/service/rlyeh/finish

@@ -0,0 +1,4 @@
+#! /bin/sh
+
+read IP < ip.txt
+ip addr del $IP dev eth0

packages/rlyeh/service/rlyeh/ip.txt

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+10.0.0.28/24

packages/rlyeh/service/rlyeh/rlyeh-ctf

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+#! /bin/sh
+
+base=${CTF_BASE:-/var/lib/ctf}
+
+read -p "Team password: " -r teamhash
+
+if ! KEY='Too much cheese.' arc4 < $base/teams.txt | grep -q -F -e "$teamhash"; then
+    echo 'No such team.'
+    exit
+fi
+
+cd $base/rlyeh
+
+if [ -f $teamhash ]; then
+    now=$(date +%s)
+    ts=$(stat -c %Y $teamhash)
+    d=$(expr $now - $ts)
+    if [ $d -lt 60 ]; then
+        echo 'You are trying to connect too fast.'
+        exit
+    fi
+else
+    echo 0 > $teamhash
+fi
+read level < $teamhash
+
+(
+    if ! flock -n 8; then
+        echo 'Your team is already logged in.'
+        exit
+    fi
+
+    echo "Your team is on level $level."
+    echo
+
+    if ./rlyeh $level; then
+        echo "10 points for Gryffindor!"
+        expr $level + 1 > $teamhash
+    else
+	touch $teamhash
+    fi
+) 8<$teamhash

packages/rlyeh/service/rlyeh/run

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+#! /bin/sh -e
+
+exec 2>&1
+read IP < ip.txt
+ip addr add $IP label eth0:rlyeh dev eth0
+
+dir=/var/lib/ctf/rlyeh
+install -o nobody -d $dir
+
+exec setuidgid nobody tcpsvd ${IP#/*} 1928 ./rlyeh-ctf