fix: lt_dlopen() with back_perl

Resolves: #960048

openldap-switch-to-lt_dlopenadvise-to-get-RTLD_GLOBAL-set.patch

@@ -0,0 +1,41 @@
+From: Jan-Marek Glogowski <jan-marek.glogowski@muenchen.de>
+Date: Tue, 18 May 2010 17:47:05 +0200
+Subject: [PATCH] Switch to lt_dlopenadvise() to get RTLD_GLOBAL set.
+
+Proof of concept for fixing http://bugs.debian.org/327585
+(patch ported from freeradius bug http://bugs.debian.org/416266)
+
+Resolves: #960048
+---
+--- openldap/servers/slapd/module.c.orig	2010-05-18 17:42:04.000000000 +0200
++++ openldap/servers/slapd/module.c	2010-05-18 17:45:46.000000000 +0200
+@@ -117,6 +117,20 @@
+ 	return -1;	/* not found */
+ }
+ 
++static lt_dlhandle slapd_lt_dlopenext_global( const char *filename )
++{
++	lt_dlhandle handle = 0;
++	lt_dladvise advise;
++
++	if (!lt_dladvise_init (&advise) && !lt_dladvise_ext (&advise)
++			&& !lt_dladvise_global (&advise))
++		handle = lt_dlopenadvise (filename, advise);
++
++	lt_dladvise_destroy (&advise);
++
++	return handle;
++}
++
+ int module_load(const char* file_name, int argc, char *argv[])
+ {
+ 	module_loaded_t *module;
+@@ -180,7 +194,7 @@
+ 	 * to calling Debug. This is because Debug is a macro that expands
+ 	 * into multiple function calls.
+ 	 */
+-	if ((module->lib = lt_dlopenext(file)) == NULL) {
++	if ((module->lib = slapd_lt_dlopenext_global(file)) == NULL) {
+ 		error = lt_dlerror();
+ #ifdef HAVE_EBCDIC
+ 		strcpy( ebuf, error );

openldap.spec

@@ -42,9 +42,14 @@ Patch13: openldap-nss-regex-search-hashed-cacert-dir.patch
 Patch14: openldap-nss-ignore-certdb-type-prefix.patch
 Patch15: openldap-nss-certs-from-certdb-fallback-pem.patch
 Patch16: openldap-nss-pk11-freeslot.patch
-# pending upstream inclusion
+# documentation patches, already included upstream
 Patch17: openldap-doc1.patch
 Patch18: openldap-doc2.patch
+# fix back_perl problems with lt_dlopen()
+# might cause crashes because of symbol collisions
+# the proper fix is to link all perl modules against libperl
+# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=327585
+Patch19: openldap-switch-to-lt_dlopenadvise-to-get-RTLD_GLOBAL-set.patch
 
 # Fedora specific patches
 Patch100: openldap-autoconf-pkgconfig-nss.patch
@@ -162,6 +167,7 @@ AUTOMAKE=%{_bindir}/true autoreconf -fi
 %patch16 -p1
 %patch17 -p1
 %patch18 -p1
+%patch19 -p1
 
 %patch102 -p1
 
@@ -593,6 +599,7 @@ exit 0
 %changelog
 * Thu May 09 2013 Jan Synáček <jsynacek@redhat.com> 2.4.35-4
 - do not needlessly run ldconfig after installing openldap-devel
+- fix: lt_dlopen() with back_perl (#960048)
 
 * Tue Apr 09 2013 Jan Synáček <jsynacek@redhat.com> 2.4.35-3
 - fix: minor documentation fixes