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#!/bin/sh
#
# Copyright (c) 2014 Samuel Lidén Borell <samuel@kodafritt.se>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# Defaults
multiarch="`gcc -print-multiarch 2>/dev/null`"
if ( [ ! -h /usr/lib64 ] && [ -f /usr/lib64/libc.so ] && [ ! -d /usr/lib32 ] ) ||
( [ ! -h /lib64 ] && [ -f /lib64/libc.so.6 ] && [ ! -d /usr/lib32 ] ); then
# RedHat etc.
multilib="lib64"
elif [ -n "$multiarch" ]; then
# New Debian with multiarch
multilib="lib/$multiarch"
else
# Old Debian and 32-bit RedHat
multilib="lib"
fi
if [ -x "/usr/local/$multilib/fribid/sign" ]; then
path="/usr/local/$multilib/fribid"
elif [ -x "/usr/$multilib/fribid/sign" ]; then
path="/usr/$multilib/fribid"
else
path=""
fi
mode=normal
output=""
fuzz_seed=""
# Parse command line
while [ "$#" -gt 0 ]; do
opt="$1"
case "$opt" in
--valgrind|-V)
mode=valgrind;;
--valgrind-zzuf-p12|--valgrind-zzuf-pkcs12|-P)
mode=valgrind-zzuf-pkcs12;;
--valgrind-zzuf-x509|-X)
mode=valgrind-zzuf-x509;;
-o)
output="$2"
shift;;
-s)
fuzz_seed="$2"
shift;;
--help|-h)
cat <<EOF
Usage: $0 [options] [fribid-lib-path]
Options:
--valgrind, -V
Run FriBID under Valgrind, but without leak checking.
--valgrind-zzuf-pkcs12, -P
Run FriBID under zzuf (a fuzzer) and fuzz PKCS#12 input.
--valgrind-zzuf-x509, -P
Run FriBID under zzuf (a fuzzer) and fuzz X509 input.
Applicable to the "storecerts" command only.
-o FILE
Write signature or request output to the given file.
-s NUMBER
Seed number to pass to fuzzer's psuedo-random generator.
--help, -h
Show this help text.
The path is autodetected by default to /usr/lib/fribid or similar. If you
want to run FriBID from the source tree, you can specify the path to the
"client" directory.
EOF
exit 0;;
--)
break;;
-*)
echo "$0: invalid option: $1" >&2
exit 1;;
*)
path="$1";;
esac
shift
done
while [ "$#" -gt 0 ]; do
path="$1"
done
# Check options
if [ -z "$path" ]; then
echo "Couldn't find the fribid \"sign\" executable. Please specify the path manually!" >&2
exit 1
fi
if [ -z "$fuzz_seed" ]; then
fuzz_seed=0
elif [ "x$mode" != "xvalgrind-zzuf-pkcs12" -a "x$mode" != "xvalgrind-zzuf-x509" ]; then
echo "The fuzz seed option can only be used with the zzuf options." >&2
exit 1
fi
# IPC commands
sendint() { echo "$*;"; }
sendstring() { echo "${#1};$1"; }
SignCommand() { sendint 3; }
CreateRequest() { sendint 4; }
StoreCertsCommand() { sendint 5; }
MoreData() { sendint 1; }
EndOfData() { sendint 0; }
# Runs the FriBID executable
run() {
exe="$1"
shift
case "$mode" in
valgrind|valgrind-zzuf-x509)
valgrind --leak-check=no -q "$path/$exe" $*;;
valgrind-zzuf-pkcs12)
valgrind --leak-check=no -q --trace-children=yes zzuf -s "$zzuf_seed" -I '.*\.[pP]12' "$path/$exe" $*;;
normal)
"$path/$exe" $*;;
esac
}
shorthash() {
if [ -z "$1" ]; then
# Empty string
echo "<empty>"
elif which sha1sum > /dev/null 2>&1; then
# Linux
echo "$1" | sha1sum | head -c 5
elif which sha1 > /dev/null 2>&1; then
# BSD
echo "$1" | sha1
else
echo "<command not available>"
fi
}
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