shlib_wrap.sh revision 279264 
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 $LIBSSLSO"; export LD_PRELOAD_64
28		preload_var=LD_PRELOAD_64
29		;;
30	# Why are newly built .so's preloaded anyway? Because run-time
31	# .so lookup path embedded into application takes precedence
32	# over LD_LIBRARY_PATH and as result application ends up linking
33	# to previously installed .so's. On IRIX instead of preloading
34	# newly built .so's we trick run-time linker to fail to find
35	# the installed .so by setting _RLD_ROOT variable.
36	*ELF\ 32*MIPS*)
37		#_RLD_LIST="$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	;;
73esac
74
75if [ -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
89fi
90
91cmd="$1${EXE_EXT}"
92shift
93if [ $# -eq 0 ]; then
94	exec "$cmd"	# old sh, such as Tru64 4.x, fails to expand empty "$@"
95else
96	exec "$cmd" "$@"
97fi
98