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#!/bin/sh
#
# $Id: findssl.sh,v 1.4 2007/02/19 11:44:25 dtucker Exp $
#
# findssl.sh
# Search for all instances of OpenSSL headers and libraries
# and print their versions.
# Intended to help diagnose OpenSSH's "OpenSSL headers do not
# match your library" errors.
#
# Written by Darren Tucker (dtucker at zip dot com dot au)
# This file is placed in the public domain.
#
# Release history:
# 2002-07-27: Initial release.
# 2002-08-04: Added public domain notice.
# 2003-06-24: Incorporated readme, set library paths. First cvs version.
# 2004-12-13: Add traps to cleanup temp files, from Amarendra Godbole.
#
# "OpenSSL headers do not match your library" are usually caused by
# OpenSSH's configure picking up an older version of OpenSSL headers
# or libraries. You can use the following # procedure to help identify
# the cause.
#
# The output of configure will tell you the versions of the OpenSSL
# headers and libraries that were picked up, for example:
#
# checking OpenSSL header version... 90604f (OpenSSL 0.9.6d 9 May 2002)
# checking OpenSSL library version... 90602f (OpenSSL 0.9.6b [engine] 9 Jul 2001)
# checking whether OpenSSL's headers match the library... no
# configure: error: Your OpenSSL headers do not match your library
#
# Now run findssl.sh. This should identify the headers and libraries
# present and their versions. You should be able to identify the
# libraries and headers used and adjust your CFLAGS or remove incorrect
# versions. The output will show OpenSSL's internal version identifier
# and should look something like:
# $ ./findssl.sh
# Searching for OpenSSL header files.
# 0x0090604fL /usr/include/openssl/opensslv.h
# 0x0090604fL /usr/local/ssl/include/openssl/opensslv.h
#
# Searching for OpenSSL shared library files.
# 0x0090602fL /lib/libcrypto.so.0.9.6b
# 0x0090602fL /lib/libcrypto.so.2
# 0x0090581fL /usr/lib/libcrypto.so.0
# 0x0090602fL /usr/lib/libcrypto.so
# 0x0090581fL /usr/lib/libcrypto.so.0.9.5a
# 0x0090600fL /usr/lib/libcrypto.so.0.9.6
# 0x0090600fL /usr/lib/libcrypto.so.1
#
# Searching for OpenSSL static library files.
# 0x0090602fL /usr/lib/libcrypto.a
# 0x0090604fL /usr/local/ssl/lib/libcrypto.a
#
# In this example, I gave configure no extra flags, so it's picking up
# the OpenSSL header from /usr/include/openssl (90604f) and the library
# from /usr/lib/ (90602f).
#
# Adjust these to suit your compiler.
# You may also need to set the *LIB*PATH environment variables if
# DEFAULT_LIBPATH is not correct for your system.
#
CC=gcc
STATIC=-static
#
# Cleanup on interrupt
#
trap 'rm -f conftest.c' INT HUP TERM
#
# Set up conftest C source
#
rm -f findssl.log
cat >conftest.c <<EOD
#include <stdio.h>
int main(){printf("0x%08xL\n", SSLeay());}
EOD
#
# Set default library paths if not already set
#
DEFAULT_LIBPATH=/usr/lib:/usr/local/lib
LIBPATH=${LIBPATH:=$DEFAULT_LIBPATH}
LD_LIBRARY_PATH=${LD_LIBRARY_PATH:=$DEFAULT_LIBPATH}
LIBRARY_PATH=${LIBRARY_PATH:=$DEFAULT_LIBPATH}
export LIBPATH LD_LIBRARY_PATH LIBRARY_PATH
# not all platforms have a 'which' command
if which ls >/dev/null 2>/dev/null; then
: which is defined
else
which () {
saveIFS="$IFS"
IFS=:
for p in $PATH; do
if test -x "$p/$1" -a -f "$p/$1"; then
IFS="$saveIFS"
echo "$p/$1"
return 0
fi
done
IFS="$saveIFS"
return 1
}
fi
#
# Search for OpenSSL headers and print versions
#
echo Searching for OpenSSL header files.
if [ -x "`which locate`" ]
then
headers=`locate opensslv.h`
else
headers=`find / -name opensslv.h -print 2>/dev/null`
fi
for header in $headers
do
ver=`awk '/OPENSSL_VERSION_NUMBER/{printf \$3}' $header`
echo "$ver $header"
done
echo
#
# Search for shared libraries.
# Relies on shared libraries looking like "libcrypto.s*"
#
echo Searching for OpenSSL shared library files.
if [ -x "`which locate`" ]
then
libraries=`locate libcrypto.s`
else
libraries=`find / -name 'libcrypto.s*' -print 2>/dev/null`
fi
for lib in $libraries
do
(echo "Trying libcrypto $lib" >>findssl.log
dir=`dirname $lib`
LIBPATH="$dir:$LIBPATH"
LD_LIBRARY_PATH="$dir:$LIBPATH"
LIBRARY_PATH="$dir:$LIBPATH"
export LIBPATH LD_LIBRARY_PATH LIBRARY_PATH
${CC} -o conftest conftest.c $lib 2>>findssl.log
if [ -x ./conftest ]
then
ver=`./conftest 2>/dev/null`
rm -f ./conftest
echo "$ver $lib"
fi)
done
echo
#
# Search for static OpenSSL libraries and print versions
#
echo Searching for OpenSSL static library files.
if [ -x "`which locate`" ]
then
libraries=`locate libcrypto.a`
else
libraries=`find / -name libcrypto.a -print 2>/dev/null`
fi
for lib in $libraries
do
libdir=`dirname $lib`
echo "Trying libcrypto $lib" >>findssl.log
${CC} ${STATIC} -o conftest conftest.c -L${libdir} -lcrypto 2>>findssl.log
if [ -x ./conftest ]
then
ver=`./conftest 2>/dev/null`
rm -f ./conftest
echo "$ver $lib"
fi
done
#
# Clean up
#
rm -f conftest.c