do a cache lookup as well in case a full pathname is passed to dlopen

diff --git a/libexec/ld.so/library_subr.c b/libexec/ld.so/library_subr.c
index c7826c3..1eefbce 100644 (file)
--- a/libexec/ld.so/library_subr.c
+++ b/libexec/ld.so/library_subr.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: library_subr.c,v 1.53 2022/11/07 10:35:26 deraadt Exp $ */
+/*     $OpenBSD: library_subr.c,v 1.54 2023/04/24 08:59:09 robert Exp $ */
 
 /*
  * Copyright (c) 2002 Dale Rahn
@@ -344,6 +344,13 @@ _dl_load_shlib(const char *libname, elf_object_t *parent, int type, int flags,
                _dl_build_sod(lname, &sod);
                req_sod = sod;
 
+               object = _dl_find_loaded_shlib(lname, req_sod, flags);
+               if (object) {
+                       _dl_free((char *)sod.sod_name);
+                       _dl_free(lpath);
+                       return (object);
+               }
+
                paths[0] = lpath;
                paths[1] = NULL;
 fullpathagain: