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#! /bin/sh
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2018-2021 Gavin D. Howard and contributors.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# This script uses some non-POSIX behavior, but since it's meant for bc
# maintainers only, I can accept that.
# Get an entry from the file. If an argument exists, it is an index. Get that
# line. Otherwise, get a random line.
getentry() {
# Figure out if we get a specific or random line.
if [ $# -gt 0 ]; then
entnum="$1"
else
entnum=0
fi
# Get data from stdin and figure out how many lines there are.
e=$(cat -)
num=$(printf '%s\n' "$e" | wc -l)
# Figure out what line we are going to get. Uses bc's own PRNG.
if [ "$entnum" -eq 0 ]; then
rand=$(printf 'irand(%s) + 1\n' "$num" | "$bcdir/bc")
else
rand="$entnum"
fi
# Get the line.
ent=$(printf '%s\n' "$e" | tail -n +$rand | head -n 1)
printf '%s\n' "$ent"
}
script="$0"
dir=$(dirname "$script")
. "$dir/functions.sh"
# Command-line processing.
if [ "$#" -lt 1 ]; then
printf 'usage: %s dir\n' "$0"
exit 1
fi
d="$1"
shift
bcdir="$dir/../bin"
# Figure out the correct input directory.
if [ "$d" = "bc" ]; then
inputs="$dir/../tests/fuzzing/bc_inputs1"
opts="-lq"
elif [ "$d" = "dc" ]; then
inputs="$dir/../test/fuzzing/dc_inputs"
opts="-x"
else
err_exit "wrong type of executable" 1
fi
export ASAN_OPTIONS="abort_on_error=1:allocator_may_return_null=1"
entries=$(cat "$dir/radamsa.txt")
IFS=$'\n'
go=1
# Infinite loop.
while [ "$go" -ne 0 ]; do
# If we are running bc, fuzz command-line arguments in BC_ENV_ARGS.
if [ "$d" = "bc" ]; then
entry=$(cat -- "$dir/radamsa.txt" | getentry)
items=$(printf '%s\n' "$entry" | radamsa -n 10)
printf '%s\n' "$items"
for i in `seq 1 10`; do
item=$(printf '%s\n' "$items" | getentry "$i")
export BC_ENV_ARGS="$item"
echo 'halt' | "$bcdir/$d"
err=$?
checkcrash "$d" "$err" "radamsa env args: \"$item\""
done
fi
f=$(ls "$inputs" | getentry)
l=$(cat "$inputs/$f" | wc -l)
ll=$(printf '%s^2\n' "$l" | bc)
# Fuzz on the AFL++ inputs.
for i in $(seq 1 2); do
data=$(cat "$inputs/$f" | radamsa -n 1)
printf '%s\n' "$data" > "$dir/../.log_${d}_test.txt"
printf '%s\n' "$data" | timeout -s SIGTERM 5 "$bcdir/$d" "$opts" > /dev/null
err=$?
checkcrash "$d" "$err" "radamsa stdin"
done
done
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