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#!/bin/bash
##===----------------------------------------------------------------------===##
##
## This source file is part of the SwiftNIO open source project
##
## Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
## Licensed under Apache License v2.0
##
## See LICENSE.txt for license information
## See CONTRIBUTORS.txt for the list of SwiftNIO project authors
##
## SPDX-License-Identifier: Apache-2.0
##
##===----------------------------------------------------------------------===##
set -eu
here="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
case "$(uname -s)" in
Darwin)
sed=gsed
;;
*)
sed=sed
;;
esac
for f in sha1.c sha1.h; do
( echo "/* Additional changes for SwiftNIO:"
echo " - prefixed all symbols by 'c_nio_'"
echo " - removed the _KERNEL include guards"
echo " - defined the __min_size macro inline"
echo " - included sys/endian.h on Android"
echo " - use welcoming language (soundness check)"
echo "*/"
curl -Ls "https://raw.githubusercontent.com/freebsd/freebsd/master/sys/crypto/$f"
) > "$here/c_nio_$f"
for func in sha1_init sha1_pad sha1_loop sha1_result; do
"$sed" -i \
-e "s/$func/c_nio_$func/g" \
"$here/c_nio_$f"
done
done
$sed -e $'/#define _CRYPTO_SHA1_H_/a #include <stdint.h>\\\n#include <stddef.h>' \
-e 's/u_int\([0-9]\+\)_t/uint\1_t/g' \
-e 's%#ifdef _KERNEL%#define __min_size(x) static (x)%g' \
-e 's%#endif /\* _KERNEL \*/%%g' \
-i "$here/c_nio_sha1.h"
$sed -e 's/u_int\([0-9]\+\)_t/uint\1_t/g' \
-e '/^#include/d' \
-e $'/__FBSDID/c #include "include/CNIOSHA1.h"\\n#include <string.h>\\n#if !defined(bzero)\\n#define bzero(b,l) memset((b), \'\\\\0\', (l))\\n#endif\\n#if !defined(bcopy)\\n#define bcopy(s,d,l) memmove((d), (s), (l))\\n#endif\\n#ifdef __ANDROID__\\n#include <sys/endian.h>\\n#elif __linux__\\n#include <sys/types.h>\\n#endif' \
-e 's/sanit[y]/soundness/g' \
-i "$here/c_nio_sha1.c"
mv "$here/c_nio_sha1.h" "$here/include/CNIOSHA1.h"
tmp=$(mktemp -d /tmp/.test_compile_XXXXXX)
clang -o "$tmp/test.o" -c "$here/c_nio_sha1.c"
num_non_nio=$(nm "$tmp/test.o" | grep ' T ' | grep -v c_nio | wc -l)
test 0 -eq $num_non_nio || {
echo "ERROR: $num_non_nio exported non-prefixed symbols found"
exit 1
}
rm -rf "$tmp"
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