openssl/SOURCES/hobble-openssl
2021-10-08 14:19:35 +00:00

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#!/bin/sh
# Quit out if anything fails.
set -e
# Clean out patent-or-otherwise-encumbered code.
# MDC-2: 4,908,861 13/03/2007 - expired, we do not remove it but do not enable it anyway
# IDEA: 5,214,703 07/01/2012 - expired, we do not remove it anymore
# RC5: 5,724,428 01/11/2015 - expired, we do not remove it anymore
# EC: ????????? ??/??/2020
# SRP: ????????? ??/??/2017 - expired, we do not remove it anymore
# Remove assembler portions of IDEA, MDC2, and RC5.
# (find crypto/rc5/asm -type f | xargs -r rm -fv)
for c in `find crypto/bn -name "*gf2m.c"`; do
echo Destroying $c
> $c
done
for c in `find crypto/ec -name "ec2*.c" -o -name "ec_curve.c"`; do
echo Destroying $c
> $c
done
for c in `find test -name "ectest.c"`; do
echo Destroying $c
> $c
done
for h in `find crypto ssl apps test -name "*.h"` ; do
echo Removing EC2M references from $h
cat $h | \
awk 'BEGIN {ech=1;} \
/^#[ \t]*ifndef.*NO_EC2M/ {ech--; next;} \
/^#[ \t]*if/ {if(ech < 1) ech--;} \
{if(ech>0) {;print $0};} \
/^#[ \t]*endif/ {if(ech < 1) ech++;}' > $h.hobbled && \
mv $h.hobbled $h
done