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#!/usr/bin/env bash
# Copyright 2024 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
# This tool uses syz-db-export artifacts.
# See https://github.com/google/syzkaller/tree/master/tools/syz-db-export documentation.
# Check if the target directory is provided as a command line argument.
if [ -z "$1" ]; then
echo "Usage: $0 <target_directory>"
exit 1
fi
target_dir="$1"
# Create the target directory if it doesn't exist.
mkdir -p "$target_dir"
# Download the archive to the target directory.
wget -P "$target_dir" https://storage.googleapis.com/artifacts.syzkaller.appspot.com/shared-files/repro-export/upstream.tar.gz
# Extract the archive in the target directory and then delete it.
tar -xzf "$target_dir/upstream.tar.gz" -C "$target_dir" && rm "$target_dir/upstream.tar.gz"
# Create the bin directory inside the target directory.
mkdir -p "$target_dir/bin"
# Compile the programs and count the successfully built ones.
built_count=$(find "$target_dir/export/bugs" -name "*.c" -print0 | \
xargs -0 -P 128 -I {} sh -c '
filename=$(basename {} .c)
flags=""
if grep "__NR_mmap2" {}; then
flags="-m32"
fi
if gcc {} $flags -static -pthread -o "'"$target_dir"'/bin/$filename" ; then
echo 1 # Output 1 if compilation is successful
else
echo 0 # Output 0 if compilation fails
fi
' | grep "1" | wc -l)
# Count the number of .c files (reproducers).
reproducer_count=$(find "$target_dir/export/bugs" -name "*.c" -print0 | xargs -0 -n1 echo | wc -l)
echo "Downloaded $reproducer_count reproducers."
echo "Successfully built $built_count programs."
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