19 lines
702 B
Bash
19 lines
702 B
Bash
#!/sbin/sh
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# Validate that the incoming OTA is compatible with an already-installed
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# system
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if [ -f /data/system/packages.xml -a -f /tmp/releasekey ]; then
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relCert=$(grep -A3 'package name="com.android.providers.calendar"' /data/system/packages.xml | grep "cert index" | head -n 1 | sed -e 's|.*"\([[:digit:]]\)".*|\1|g')
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grep "cert index=\"$relCert\"" /data/system/packages.xml | grep -q `cat /tmp/releasekey`
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if [ $? -ne 0 ]; then
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echo "You have an installed system that isn't signed with this build's key, aborting..."
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# Edify doesn't abort on non-zero executions, so let's trash the key and use sha1sum instead
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echo "INVALID" > /tmp/releasekey
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exit 1
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fi
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fi
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exit 0
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