From 3b735be29deae48aea3b30d84fda040501600ce9 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Sat, 2 Dec 2023 16:30:22 +0100
Subject: Fix dlclose() for dlopen(NULL, ...)

dlopen(NULL, ...) does not call LoadLibrary(), so do not call FreeLibrary()
in dlclose() for this case.
---
 src/dlfcn.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/dlfcn.c b/src/dlfcn.c
index cb9f9bb..be6e01f 100644
--- a/src/dlfcn.c
+++ b/src/dlfcn.c
@@ -466,6 +466,10 @@ int dlclose( void *handle )
 
     error_occurred = FALSE;
 
+    /* dlopen(NULL, ...) does not call LoadLibrary(), so do not call FreeLibrary(). */
+    if( hModule == GetModuleHandle( NULL ) )
+        return 0;
+
     ret = FreeLibrary( hModule );
 
     /* If the object was loaded with RTLD_LOCAL, remove it from list of local
-- 
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