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[PEFIXUP] Only recalculate the PE checksum if the image is not from a reproducible build (original checksum == 0). (#3598)

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Hermès Bélusca-Maïto 2021-04-10 20:06:56 +02:00
parent 7ad33940c2
commit 88b933330d
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1 changed files with 4 additions and 3 deletions
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sdk/tools/pefixup.c
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@ -283,10 +283,11 @@ int main(int argc, char **argv)
if (!result)
{
/* Success. Fix checksum and write to file */
/* Success. Recalculate the checksum only if this is not a reproducible build file */
if (nt_header->OptionalHeader.CheckSum != 0)
fix_checksum(buffer, len, nt_header);
/* We could 'optimize by only writing the changed parts, but keep it simple for now */
/* We could optimize by only writing the changed parts, but keep it simple for now */
fseek(file, 0, SEEK_SET);
fwrite(buffer, 1, len, file);
}