util/shlib_wrap.sh

   1 #!/bin/sh
   2
   3 [ $# -ne 0 ] || set -x          # debug mode without arguments:-)
   4
   5 THERE="`echo $0 | sed -e 's|[^/]*$||' 2>/dev/null`.."
   6 [ -d "${THERE}" ] || exec "$@"  # should never happen...
   7
   8 # Alternative to this is to parse ${THERE}/Makefile...
   9 LIBCRYPTOSO="${THERE}/libcrypto.so"
  10 if [ -f "$LIBCRYPTOSO" ]; then
  11     while [ -h "$LIBCRYPTOSO" ]; do
  12         LIBCRYPTOSO="${THERE}/`ls -l "$LIBCRYPTOSO" | sed -e 's|.*\-> ||'`"
  13     done
  14     SOSUFFIX=`echo ${LIBCRYPTOSO} | sed -e 's|.*\.so||' 2>/dev/null`
  15     LIBSSLSO="${THERE}/libssl.so${SOSUFFIX}"
  16 fi
  17
  18 SYSNAME=`(uname -s) 2>/dev/null`;
  19 case "$SYSNAME" in
  20 SunOS|IRIX*)
  21         # SunOS and IRIX run-time linkers evaluate alternative
  22         # variables depending on target ABI...
  23         rld_var=LD_LIBRARY_PATH
  24         case "`(/usr/bin/file "$LIBCRYPTOSO") 2>/dev/null`" in
  25         *ELF\ 64*SPARC*|*ELF\ 64*AMD64*)
  26                 [ -n "$LD_LIBRARY_PATH_64" ] && rld_var=LD_LIBRARY_PATH_64
  27                 LD_PRELOAD_64="$LIBCRYPTOSO $LIBSSLSO"; export LD_PRELOAD_64
  28                 preload_var=LD_PRELOAD_64
  29                 ;;
  30         # Why are newly built .so's preloaded anyway? Because run-time
  31         # .so lookup path embedded into application takes precedence
  32         # over LD_LIBRARY_PATH and as result application ends up linking
  33         # to previously installed .so's. On IRIX instead of preloading
  34         # newly built .so's we trick run-time linker to fail to find
  35         # the installed .so by setting _RLD_ROOT variable.
  36         *ELF\ 32*MIPS*)
  37                 #_RLD_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLD_LIST
  38                 _RLD_ROOT=/no/such/dir; export _RLD_ROOT
  39                 eval $rld_var=\"/usr/lib'${'$rld_var':+:$'$rld_var'}'\"
  40                 preload_var=_RLD_LIST
  41                 ;;
  42         *ELF\ N32*MIPS*)
  43                 [ -n "$LD_LIBRARYN32_PATH" ] && rld_var=LD_LIBRARYN32_PATH
  44                 #_RLDN32_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLDN32_LIST
  45                 _RLDN32_ROOT=/no/such/dir; export _RLDN32_ROOT
  46                 eval $rld_var=\"/usr/lib32'${'$rld_var':+:$'$rld_var'}'\"
  47                 preload_var=_RLDN32_LIST
  48                 ;;
  49         *ELF\ 64*MIPS*)
  50                 [ -n "$LD_LIBRARY64_PATH"  ] && rld_var=LD_LIBRARY64_PATH
  51                 #_RLD64_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLD64_LIST
  52                 _RLD64_ROOT=/no/such/dir; export _RLD64_ROOT
  53                 eval $rld_var=\"/usr/lib64'${'$rld_var':+:$'$rld_var'}'\"
  54                 preload_var=_RLD64_LIST
  55                 ;;
  56         esac
  57         eval $rld_var=\"${THERE}'${'$rld_var':+:$'$rld_var'}'\"; export $rld_var
  58         unset rld_var
  59         ;;
  60 *)      LD_LIBRARY_PATH="${THERE}:$LD_LIBRARY_PATH"     # Linux, ELF HP-UX
  61         DYLD_LIBRARY_PATH="${THERE}:$DYLD_LIBRARY_PATH" # MacOS X
  62         SHLIB_PATH="${THERE}:$SHLIB_PATH"               # legacy HP-UX
  63         LIBPATH="${THERE}:$LIBPATH"                     # AIX, OS/2
  64         export LD_LIBRARY_PATH DYLD_LIBRARY_PATH SHLIB_PATH LIBPATH
  65         # Even though $PATH is adjusted [for Windows sake], it doesn't
  66         # necessarily does the trick. Trouble is that with introduction
  67         # of SafeDllSearchMode in XP/2003 it's more appropriate to copy
  68         # .DLLs in vicinity of executable, which is done elsewhere...
  69         if [ "$OSTYPE" != msdosdjgpp ]; then
  70                 PATH="${THERE}:$PATH"; export PATH
  71         fi
  72         ;;
  73 esac
  74
  75 if [ -f "$LIBCRYPTOSO" -a -z "$preload_var" ]; then
  76         # Following three lines are major excuse for isolating them into
  77         # this wrapper script. Original reason for setting LD_PRELOAD
  78         # was to make it possible to pass 'make test' when user linked
  79         # with -rpath pointing to previous version installation. Wrapping
  80         # it into a script makes it possible to do so on multi-ABI
  81         # platforms.
  82         case "$SYSNAME" in
  83         *BSD|QNX)       LD_PRELOAD="$LIBCRYPTOSO:$LIBSSLSO" ;;  # *BSD, QNX
  84         *)      LD_PRELOAD="$LIBCRYPTOSO $LIBSSLSO" ;;  # SunOS, Linux, ELF HP-UX
  85         esac
  86         _RLD_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"      # Tru64, o32 IRIX
  87         DYLD_INSERT_LIBRARIES="$LIBCRYPTOSO:$LIBSSLSO"  # MacOS X
  88         export LD_PRELOAD _RLD_LIST DYLD_INSERT_LIBRARIES
  89 fi
  90
  91 cmd="$1${EXE_EXT}"
  92 shift
  93 exec "$cmd" "$@"