contrib/findssl.sh

   1 #!/bin/sh
   2 #
   3 # $Id: findssl.sh,v 1.4 2007/02/19 11:44:25 dtucker Exp $
   4 #
   5 # findssl.sh
   6 #       Search for all instances of OpenSSL headers and libraries
   7 #       and print their versions.
   8 #       Intended to help diagnose OpenSSH's "OpenSSL headers do not
   9 #       match your library" errors.
  10 #
  11 #       Written by Darren Tucker (dtucker at zip dot com dot au)
  12 #       This file is placed in the public domain.
  13 #
  14 #       Release history:
  15 #       2002-07-27: Initial release.
  16 #       2002-08-04: Added public domain notice.
  17 #       2003-06-24: Incorporated readme, set library paths. First cvs version.
  18 #       2004-12-13: Add traps to cleanup temp files, from Amarendra Godbole.
  19 #
  20 # "OpenSSL headers do not match your library" are usually caused by
  21 # OpenSSH's configure picking up an older version of OpenSSL headers
  22 # or libraries.  You can use the following # procedure to help identify
  23 # the cause.
  24 #
  25 # The  output  of  configure  will  tell you the versions of the OpenSSL
  26 # headers and libraries that were picked up, for example:
  27 #
  28 # checking OpenSSL header version... 90604f (OpenSSL 0.9.6d 9 May 2002)
  29 # checking OpenSSL library version... 90602f (OpenSSL 0.9.6b [engine] 9 Jul 2001)
  30 # checking whether OpenSSL's headers match the library... no
  31 # configure: error: Your OpenSSL headers do not match your library
  32 #
  33 # Now run findssl.sh. This should identify the headers and libraries
  34 # present  and  their  versions.  You  should  be  able  to identify the
  35 # libraries  and headers used and adjust your CFLAGS or remove incorrect
  36 # versions.  The  output will show OpenSSL's internal version identifier
  37 # and should look something like:
  38
  39 # $ ./findssl.sh
  40 # Searching for OpenSSL header files.
  41 # 0x0090604fL /usr/include/openssl/opensslv.h
  42 # 0x0090604fL /usr/local/ssl/include/openssl/opensslv.h
  43 #
  44 # Searching for OpenSSL shared library files.
  45 # 0x0090602fL /lib/libcrypto.so.0.9.6b
  46 # 0x0090602fL /lib/libcrypto.so.2
  47 # 0x0090581fL /usr/lib/libcrypto.so.0
  48 # 0x0090602fL /usr/lib/libcrypto.so
  49 # 0x0090581fL /usr/lib/libcrypto.so.0.9.5a
  50 # 0x0090600fL /usr/lib/libcrypto.so.0.9.6
  51 # 0x0090600fL /usr/lib/libcrypto.so.1
  52 #
  53 # Searching for OpenSSL static library files.
  54 # 0x0090602fL /usr/lib/libcrypto.a
  55 # 0x0090604fL /usr/local/ssl/lib/libcrypto.a
  56 #
  57 # In  this  example, I gave configure no extra flags, so it's picking up
  58 # the  OpenSSL header from /usr/include/openssl (90604f) and the library
  59 # from /usr/lib/ (90602f).
  60
  61 #
  62 # Adjust these to suit your compiler.
  63 # You may also need to set the *LIB*PATH environment variables if
  64 # DEFAULT_LIBPATH is not correct for your system.
  65 #
  66 CC=gcc
  67 STATIC=-static
  68
  69 #
  70 # Cleanup on interrupt
  71 #
  72 trap 'rm -f conftest.c' INT HUP TERM
  73
  74 #
  75 # Set up conftest C source
  76 #
  77 rm -f findssl.log
  78 cat >conftest.c <<EOD
  79 #include <stdio.h>
  80 int main(){printf("0x%08xL\n", SSLeay());}
  81 EOD
  82
  83 #
  84 # Set default library paths if not already set
  85 #
  86 DEFAULT_LIBPATH=/usr/lib:/usr/local/lib
  87 LIBPATH=${LIBPATH:=$DEFAULT_LIBPATH}
  88 LD_LIBRARY_PATH=${LD_LIBRARY_PATH:=$DEFAULT_LIBPATH}
  89 LIBRARY_PATH=${LIBRARY_PATH:=$DEFAULT_LIBPATH}
  90 export LIBPATH LD_LIBRARY_PATH LIBRARY_PATH
  91
  92 # not all platforms have a 'which' command
  93 if which ls >/dev/null 2>/dev/null; then
  94     : which is defined
  95 else
  96     which () {
  97         saveIFS="$IFS"
  98         IFS=:
  99         for p in $PATH; do
 100             if test -x "$p/$1" -a -f "$p/$1"; then
 101                 IFS="$saveIFS"
 102                 echo "$p/$1"
 103                 return 0
 104             fi
 105         done
 106         IFS="$saveIFS"
 107         return 1
 108     }
 109 fi
 110
 111 #
 112 # Search for OpenSSL headers and print versions
 113 #
 114 echo Searching for OpenSSL header files.
 115 if [ -x "`which locate`" ]
 116 then
 117         headers=`locate opensslv.h`
 118 else
 119         headers=`find / -name opensslv.h -print 2>/dev/null`
 120 fi
 121
 122 for header in $headers
 123 do
 124         ver=`awk '/OPENSSL_VERSION_NUMBER/{printf \$3}' $header`
 125         echo "$ver $header"
 126 done
 127 echo
 128
 129 #
 130 # Search for shared libraries.
 131 # Relies on shared libraries looking like "libcrypto.s*"
 132 #
 133 echo Searching for OpenSSL shared library files.
 134 if [ -x "`which locate`" ]
 135 then
 136         libraries=`locate libcrypto.s`
 137 else
 138         libraries=`find / -name 'libcrypto.s*' -print 2>/dev/null`
 139 fi
 140
 141 for lib in $libraries
 142 do
 143         (echo "Trying libcrypto $lib" >>findssl.log
 144         dir=`dirname $lib`
 145         LIBPATH="$dir:$LIBPATH"
 146         LD_LIBRARY_PATH="$dir:$LIBPATH"
 147         LIBRARY_PATH="$dir:$LIBPATH"
 148         export LIBPATH LD_LIBRARY_PATH LIBRARY_PATH
 149         ${CC} -o conftest conftest.c $lib 2>>findssl.log
 150         if [ -x ./conftest ]
 151         then
 152                 ver=`./conftest 2>/dev/null`
 153                 rm -f ./conftest
 154                 echo "$ver $lib"
 155         fi)
 156 done
 157 echo
 158
 159 #
 160 # Search for static OpenSSL libraries and print versions
 161 #
 162 echo Searching for OpenSSL static library files.
 163 if [ -x "`which locate`" ]
 164 then
 165         libraries=`locate libcrypto.a`
 166 else
 167         libraries=`find / -name libcrypto.a -print 2>/dev/null`
 168 fi
 169
 170 for lib in $libraries
 171 do
 172         libdir=`dirname $lib`
 173         echo "Trying libcrypto $lib" >>findssl.log
 174         ${CC} ${STATIC} -o conftest conftest.c -L${libdir} -lcrypto 2>>findssl.log
 175         if [ -x ./conftest ]
 176         then
 177                 ver=`./conftest 2>/dev/null`
 178                 rm -f ./conftest
 179                 echo "$ver $lib"
 180         fi
 181 done
 182
 183 #
 184 # Clean up
 185 #
 186 rm -f conftest.c