source: vbox/trunk/src/libs/openssl-3.1.5/util/shlib_wrap.sh.in

#!/bin/sh
{-
    use lib '.';
    use configdata;
    use lib catdir($config{sourcedir}, 'Configurations');
    use platform;
-}
# To test this OpenSSL version's applications against another version's
# shared libraries, simply set
#
#     OPENSSL_REGRESSION=/path/to/other/OpenSSL/build/tree
if [ -n "$OPENSSL_REGRESSION" ]; then
    shlibwrap="$OPENSSL_REGRESSION/util/shlib_wrap.sh"
    if [ -x "$shlibwrap" ]; then
        # We clear OPENSSL_REGRESSION to avoid a loop, should the shlib_wrap.sh
        # we exec also support that mechanism...
        OPENSSL_REGRESSION= exec "$shlibwrap" "$@"
    else
        if [ -f "$shlibwrap" ]; then
            echo "Not permitted to run $shlibwrap" >&2
        else
            echo "No $shlibwrap, perhaps OPENSSL_REGRESSION isn't properly set?" >&2
        fi
        exit 1
    fi
fi

[ $# -ne 0 ] || set -x          # debug mode without arguments:-)

THERE="`echo $0 | sed -e 's|[^/]*$||' 2>/dev/null`.."
[ -d "${THERE}" ] || exec "$@"  # should never happen...

LIBCRYPTOSO="${THERE}/{- platform->sharedlib('libcrypto') -}"
LIBSSLSO="${THERE}/{- platform->sharedlib('libssl') -}"

SYSNAME=`(uname -s) 2>/dev/null`;
case "$SYSNAME" in
SunOS|IRIX*)
        # SunOS and IRIX run-time linkers evaluate alternative
        # variables depending on target ABI...
        rld_var=LD_LIBRARY_PATH
        case "`(/usr/bin/file "$LIBCRYPTOSO") 2>/dev/null`" in
        *ELF\ 64*SPARC*|*ELF\ 64*AMD64*)
                [ -n "$LD_LIBRARY_PATH_64" ] && rld_var=LD_LIBRARY_PATH_64
                LD_PRELOAD_64="$LIBCRYPTOSO $LIBSSLSO"; export LD_PRELOAD_64
                preload_var=LD_PRELOAD_64
                ;;
        *ELF\ 32*SPARC*|*ELF\ 32*80386*)
                # We only need to change LD_PRELOAD_32 and LD_LIBRARY_PATH_32
                # on a multi-arch system.  Otherwise, trust the fallbacks.
                if [ -f /lib/64/ld.so.1 ]; then
                    [ -n "$LD_LIBRARY_PATH_32" ] && rld_var=LD_LIBRARY_PATH_32
                    LD_PRELOAD_32="$LIBCRYPTOSO $LIBSSLSO"; export LD_PRELOAD_32
                    preload_var=LD_PRELOAD_32
                fi
                ;;
        # Why are newly built .so's preloaded anyway? Because run-time
        # .so lookup path embedded into application takes precedence
        # over LD_LIBRARY_PATH and as result application ends up linking
        # to previously installed .so's. On IRIX instead of preloading
        # newly built .so's we trick run-time linker to fail to find
        # the installed .so by setting _RLD_ROOT variable.
        *ELF\ 32*MIPS*)
                #_RLD_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLD_LIST
                _RLD_ROOT=/no/such/dir; export _RLD_ROOT
                eval $rld_var=\"/usr/lib'${'$rld_var':+:$'$rld_var'}'\"
                preload_var=_RLD_LIST
                ;;
        *ELF\ N32*MIPS*)
                [ -n "$LD_LIBRARYN32_PATH" ] && rld_var=LD_LIBRARYN32_PATH
                #_RLDN32_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLDN32_LIST
                _RLDN32_ROOT=/no/such/dir; export _RLDN32_ROOT
                eval $rld_var=\"/usr/lib32'${'$rld_var':+:$'$rld_var'}'\"
                preload_var=_RLDN32_LIST
                ;;
        *ELF\ 64*MIPS*)
                [ -n "$LD_LIBRARY64_PATH"  ] && rld_var=LD_LIBRARY64_PATH
                #_RLD64_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLD64_LIST
                _RLD64_ROOT=/no/such/dir; export _RLD64_ROOT
                eval $rld_var=\"/usr/lib64'${'$rld_var':+:$'$rld_var'}'\"
                preload_var=_RLD64_LIST
                ;;
        esac
        eval $rld_var=\"${THERE}'${'$rld_var':+:$'$rld_var'}'\"; export $rld_var
        unset rld_var
        ;;
NONSTOP_KERNEL)
        # HPE NonStop has a proprietary mechanism for specifying
        # the location of DLLs. It does not use PATH or variables
        # commonly used on other platforms. The platform has a limited
        # environment space keeping extraneous variables to a minimum
        # is recommended.
        _RLD_LIB_PATH="${THERE}:$LD_LIBRARY_PATH"
        export _RLD_LIB_PATH
        ;;
*)      LD_LIBRARY_PATH="${THERE}:$LD_LIBRARY_PATH"     # Linux, ELF HP-UX
        DYLD_LIBRARY_PATH="${THERE}:$DYLD_LIBRARY_PATH" # MacOS X
        SHLIB_PATH="${THERE}:$SHLIB_PATH"               # legacy HP-UX
        LIBPATH="${THERE}:$LIBPATH"                     # AIX, OS/2
        export LD_LIBRARY_PATH DYLD_LIBRARY_PATH SHLIB_PATH LIBPATH
        # Even though $PATH is adjusted [for Windows sake], it doesn't
        # necessarily does the trick. Trouble is that with introduction
        # of SafeDllSearchMode in XP/2003 it's more appropriate to copy
        # .DLLs in vicinity of executable, which is done elsewhere...
        if [ "$OSTYPE" != msdosdjgpp ]; then
                PATH="${THERE}:$PATH"; export PATH
        fi
        ;;
esac

{- output_off() unless grep (/-rpath\b/, @{$config{LDFLAGS}}); ""; -}
if [ -f "$LIBCRYPTOSO" -a -z "$preload_var" ]; then
        # Following three lines are major excuse for isolating them into
        # this wrapper script. Original reason for setting LD_PRELOAD
        # was to make it possible to pass 'make test' when user linked
        # with -rpath pointing to previous version installation. Wrapping
        # it into a script makes it possible to do so on multi-ABI
        # platforms.
        case "$SYSNAME" in
        *BSD)   LD_PRELOAD="$LIBCRYPTOSO:$LIBSSLSO" ;;  # *BSD
        *)      LD_PRELOAD="$LIBCRYPTOSO $LIBSSLSO" ;;  # SunOS, Linux, ELF HP-UX
        esac
        _RLD_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"      # Tru64, o32 IRIX
        DYLD_INSERT_LIBRARIES="$LIBCRYPTOSO:$LIBSSLSO"  # MacOS X
        export LD_PRELOAD _RLD_LIST DYLD_INSERT_LIBRARIES
fi
{- output_on() unless grep (/-rpath\b/, @{$config{LDFLAGS}}); ""; -}

cmd="$1"; [ -x "$cmd" ] || cmd="$cmd${EXE_EXT}"
shift
if [ $# -eq 0 ]; then
        exec "$cmd"     # old sh, such as Tru64 4.x, fails to expand empty "$@"
else
        exec "$cmd" "$@"
fi