1#!/bin/sh
2
3[ $# -ne 0 ] || set -x		# debug mode without arguments:-)
4
5THERE="`echo $0 | sed -e 's|[^/]*$||' 2>/dev/null`.."
6[ -d "${THERE}" ] || exec "$@"	# should never happen...
7
8# Alternative to this is to parse ${THERE}/Makefile...
9LIBCRYPTOSO="${THERE}/libcrypto.so"
10if [ -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${SOSUFFIX}"
16fi
17
18SYSNAME=`(uname -s) 2>/dev/null`;
19case "$SYSNAME" in
20SunOS|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 $LIBSSLSO"; export LD_PRELOAD_64
28		preload_var=LD_PRELOAD_64
29		;;
30	*ELF\ 32*SPARC*|*ELF\ 32*80386*)
31		# We only need to change LD_PRELOAD_32 and LD_LIBRARY_PATH_32
32		# on a multi-arch system.  Otherwise, trust the fallbacks.
33		if [ -f /lib/64/ld.so.1 ]; then
34		    [ -n "$LD_LIBRARY_PATH_32" ] && rld_var=LD_LIBRARY_PATH_32
35		    LD_PRELOAD_32="$LIBCRYPTOSO $LIBSSLSO"; export LD_PRELOAD_32
36		    preload_var=LD_PRELOAD_32
37		fi
38		;;
39	# Why are newly built .so's preloaded anyway? Because run-time
40	# .so lookup path embedded into application takes precedence
41	# over LD_LIBRARY_PATH and as result application ends up linking
42	# to previously installed .so's. On IRIX instead of preloading
43	# newly built .so's we trick run-time linker to fail to find
44	# the installed .so by setting _RLD_ROOT variable.
45	*ELF\ 32*MIPS*)
46		#_RLD_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLD_LIST
47		_RLD_ROOT=/no/such/dir; export _RLD_ROOT
48		eval $rld_var=\"/usr/lib'${'$rld_var':+:$'$rld_var'}'\"
49		preload_var=_RLD_LIST
50		;;
51	*ELF\ N32*MIPS*)
52		[ -n "$LD_LIBRARYN32_PATH" ] && rld_var=LD_LIBRARYN32_PATH
53		#_RLDN32_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLDN32_LIST
54		_RLDN32_ROOT=/no/such/dir; export _RLDN32_ROOT
55		eval $rld_var=\"/usr/lib32'${'$rld_var':+:$'$rld_var'}'\"
56		preload_var=_RLDN32_LIST
57		;;
58	*ELF\ 64*MIPS*)
59		[ -n "$LD_LIBRARY64_PATH"  ] && rld_var=LD_LIBRARY64_PATH
60		#_RLD64_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"; export _RLD64_LIST
61		_RLD64_ROOT=/no/such/dir; export _RLD64_ROOT
62		eval $rld_var=\"/usr/lib64'${'$rld_var':+:$'$rld_var'}'\"
63		preload_var=_RLD64_LIST
64		;;
65	esac
66	eval $rld_var=\"${THERE}'${'$rld_var':+:$'$rld_var'}'\"; export $rld_var
67	unset rld_var
68	;;
69*)	LD_LIBRARY_PATH="${THERE}:$LD_LIBRARY_PATH"	# Linux, ELF HP-UX
70	DYLD_LIBRARY_PATH="${THERE}:$DYLD_LIBRARY_PATH"	# MacOS X
71	SHLIB_PATH="${THERE}:$SHLIB_PATH"		# legacy HP-UX
72	LIBPATH="${THERE}:$LIBPATH"			# AIX, OS/2
73	export LD_LIBRARY_PATH DYLD_LIBRARY_PATH SHLIB_PATH LIBPATH
74	# Even though $PATH is adjusted [for Windows sake], it doesn't
75	# necessarily does the trick. Trouble is that with introduction
76	# of SafeDllSearchMode in XP/2003 it's more appropriate to copy
77	# .DLLs in vicinity of executable, which is done elsewhere...
78	if [ "$OSTYPE" != msdosdjgpp ]; then
79		PATH="${THERE}:$PATH"; export PATH
80	fi
81	;;
82esac
83
84if [ -f "$LIBCRYPTOSO" -a -z "$preload_var" ]; then
85	# Following three lines are major excuse for isolating them into
86	# this wrapper script. Original reason for setting LD_PRELOAD
87	# was to make it possible to pass 'make test' when user linked
88	# with -rpath pointing to previous version installation. Wrapping
89	# it into a script makes it possible to do so on multi-ABI
90	# platforms.
91	case "$SYSNAME" in
92	*BSD|QNX)	LD_PRELOAD="$LIBCRYPTOSO:$LIBSSLSO" ;;	# *BSD, QNX
93	*)	LD_PRELOAD="$LIBCRYPTOSO $LIBSSLSO" ;;	# SunOS, Linux, ELF HP-UX
94	esac
95	_RLD_LIST="$LIBCRYPTOSO:$LIBSSLSO:DEFAULT"	# Tru64, o32 IRIX
96	DYLD_INSERT_LIBRARIES="$LIBCRYPTOSO:$LIBSSLSO"	# MacOS X
97	export LD_PRELOAD _RLD_LIST DYLD_INSERT_LIBRARIES
98fi
99
100cmd="$1${EXE_EXT}"
101shift
102if [ $# -eq 0 ]; then
103	exec "$cmd"	# old sh, such as Tru64 4.x, fails to expand empty "$@"
104else
105	exec "$cmd" "$@"
106fi
107