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#! /bin/bash
# Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
# Find unused error function-names and reason-codes, and edit them
# out of the source. Doesn't handle line-wrapping, might have to do
# some manual cleanups to fix compile errors.
export X1=/tmp/f.1.$$
export X2=/tmp/f.2.$$
case "$1" in
-f)
PAT='_F_'
echo Functions only
;;
-[er])
PAT='_R_'
echo Reason codes only
;;
"")
PAT='_[FR]_'
echo Function and reasons
;;
*)
echo "Usage error; one of -[efr] required."
exit 1;
;;
esac
cd include/openssl || exit 1
grep "$PAT" * | grep -v ERR_FATAL_ERROR | awk '{print $3;}' | sort -u >$X1
cd ../..
for F in `cat $X1` ; do
git grep -l --full-name -F $F >$X2
NUM=`wc -l <$X2`
test $NUM -gt 2 && continue
if grep -q $F crypto/err/openssl.ec ; then
echo Possibly unused $F found in openssl.ec
continue
fi
echo $F
for FILE in `cat $X2` ; do
grep -v -w $F <$FILE >$FILE.new
mv $FILE.new $FILE
done
done
rm $X1 $X2
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