25 lines
703 B
Bash
25 lines
703 B
Bash
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#!/bin/bash
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pubkey="/pub.pem"
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echo "### ccOS Update Script ###"
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echo "[+] Starting"
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sleep 1
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echo "[+] Extracting Signature"
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skip=$(expr $(stat -c '%s' update.tgz.cc) - 256)
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dd if=/tmp/update.tgz.cc of=sig bs=1 count=256 skip=$skip > /dev/null 2>&1
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truncate -s $skip update.tgz.cc
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check=`openssl dgst -sha256 -verify $pubkey -signature /tmp/sig /tmp/update.tgz.cc`
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if [ "$check" == "Verified OK" ]
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then
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echo "[+] Signature is valid!"
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echo "[+] Upgrading..."
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tar -xvzf /tmp/update.tgz.cc -C /
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rm /tmp/update.tgz.cc /tmp/sig
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echo "[+] Done"
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exit 0
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else
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echo "[-] Signature error, exiting..."
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rm /tmp/update.tgz.cc /tmp/sig
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exit 1
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fi
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