Forget sanctions or punishments, you are just going to have to be extra vigilant for baby's safety and extra loving and patient to child.
Don't shame the child for his feelings of resentment. Let him know that you understand and that you still love him just as much as ever. Apologise to him for being busy with baby, but explain that babies need to have everything done for them, not like a big boy like him.
Having baby in a sling is a useful way to keep out of the way of thrown toys or blows. You can give your older child verbal and visual attention without depriving baby of anything.
If you're breastfeeding, then use feeds as a time to have older child snuggled next to you while you read to him or sing together.
Spend time with your older child when baby sleeps or is with your husband/partner. That way he has your full attention.
Try to be the one who puts the older one to bed, baths him, etc. He is still your baby and hasn't been replaced in your love.
Make sure visitors are sensitive to his needs too and don't rush to the baby, ignoring him.
Look up books about big brothers coping with a new baby. It will help him to know it's normal to feel like he does.
He will come to love the baby, but you can't trust him to manage his actions at the moment.