#!/bin/sh

export PATH=/bin TMPDIR=/tmp
trap 'sync ; echo 1 >/proc/sys/kernel/sysrq ; echo b >/proc/sysrq-trigger' EXIT

mount -t proc proc /proc
mount -t devtmpfs devtmpfs /dev
mount -t tmpfs tmp /tmp
mount -t ext4 -r /dev/vdb /root/student
mount -t ext4 -r /dev/vdc /root/project
mount -t ext4 /dev/vdd /root/results

cp -a /root/student/. /tmp/
cp -a --remove-destination /root/project/build/. /tmp/
chmod -R 777 /tmp
cd /tmp
rm -f program

(
  ulimit -t 30 -u 256 -n 256 -f 2048
  timeout -s 9 30 \
    setpriv --reuid=1 --regid=1 --clear-groups --no-new-privs --inh-caps=-all \
    make -B >/root/results/build.log 2>&1
  echo $? >/root/results/build.status
)

for TEST in /root/project/tests/* ; do
  NAME="$(basename "$TEST")"

  ARGS="/root/project/args/$NAME"
  [ -f "$ARGS" ] || ARGS=/dev/null

  cp -a --remove-destination "$TEST" /tmp/test
  chmod 755 /tmp/test
  (
    ulimit -t 2 -u 256 -n 256 -f 2048
    timeout -s 9 2 \
      setpriv --reuid=1 --regid=1 --clear-groups --no-new-privs --inh-caps=-all \
      /tmp/test <"$ARGS" >"/root/results/$NAME" 2>/dev/null
    echo $? >"/root/results/$NAME.status"
  )
done