From b3fc03bae6bc44fafdf634c11896d3e19bc1b8d9 Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@openldap.org>
Date: Wed, 16 Oct 2024 22:50:06 +0100
Subject: [PATCH] Delete unused module code

---
 libraries/liblmdb/module.c | 106 -------------------------------------
 libraries/liblmdb/module.h |  17 ------
 2 files changed, 123 deletions(-)
 delete mode 100644 libraries/liblmdb/module.c
 delete mode 100644 libraries/liblmdb/module.h

diff --git a/libraries/liblmdb/module.c b/libraries/liblmdb/module.c
deleted file mode 100644
index 16fefa96c0..0000000000
--- a/libraries/liblmdb/module.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* module.c - helper for dynamically loading crypto module */
-/*
- * Copyright 2020-2021 Howard Chu, Symas Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted only as authorized by the Symas
- * Dual-Use License.
- *
- * A copy of this license is available in the file LICENSE in the
- * source distribution.
- */
-#ifdef _WIN32
-#include <windows.h>
-#else
-#include <dlfcn.h>
-#endif
-
-#include <stddef.h>
-#include <string.h>
-
-#include "lmdb.h"
-#include "module.h"
-
-void *mlm_load(const char *file, const char *name, MDB_crypto_funcs **mcf_ptr, char **errmsg)
-{
-	MDB_crypto_hooks *hookfunc;
-	void *ret = NULL;
-	if (!name)
-		name = "MDB_crypto";
-
-#ifdef _WIN32
-	{
-		HINSTANCE mlm = LoadLibrary(file);
-		if (mlm) {
-			hookfunc = GetProcAddress(mlm, name);
-			if (hookfunc)
-				*mcf_ptr = hookfunc();
-			else {
-				*errmsg = "Crypto hook function not found";
-				FreeLibrary(mlm);
-				mlm = NULL;
-			}
-		} else {
-			*errmsg = GetLastError();
-		}
-		ret = (void *)mlm;
-	}
-#else
-	{
-		void *mlm = dlopen(file, RTLD_NOW);
-		if (mlm) {
-			hookfunc = dlsym(mlm, name);
-			if (hookfunc)
-				*mcf_ptr = hookfunc();
-			else {
-				*errmsg = "Crypto hook function not found";
-				dlclose(mlm);
-				mlm = NULL;
-			}
-		} else {
-			*errmsg = dlerror();
-		}
-		ret = mlm;
-	}
-#endif
-	return ret;
-}
-
-void mlm_unload(void *mlm)
-{
-#ifdef _WIN32
-	FreeLibrary((HINSTANCE)mlm);
-#else
-	dlclose(mlm);
-#endif
-}
-
-void mlm_setup0(MDB_env *env, MDB_crypto_funcs *cf, const char *password)
-{
-	MDB_val enckey = {0};
-	if (cf->mcf_sumfunc) {
-		mdb_env_set_checksum(env, cf->mcf_sumfunc, cf->mcf_sumsize);
-	}
-	if (cf->mcf_encfunc && password) {
-		char keybuf[2048];
-		enckey.mv_data = keybuf;
-		enckey.mv_size = cf->mcf_keysize;
-		if (cf->mcf_str2key)
-			cf->mcf_str2key(password, &enckey);
-		else
-			strncpy(enckey.mv_data, password, enckey.mv_size);
-		mdb_env_set_encrypt(env, cf->mcf_encfunc, &enckey, cf->mcf_esumsize);
-		memset(enckey.mv_data, 0, enckey.mv_size);
-	}
-}
-
-void *mlm_setup(MDB_env *env, const char *file, const char *password, char **errmsg)
-{
-	MDB_crypto_funcs *cf;
-	void *mlm = mlm_load(file, NULL, &cf, errmsg);
-	if (mlm) {
-		mlm_setup0(env, cf, password);
-	}
-	return mlm;
-}
diff --git a/libraries/liblmdb/module.h b/libraries/liblmdb/module.h
deleted file mode 100644
index bd5fb3ff14..0000000000
--- a/libraries/liblmdb/module.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* module.h - helper for dynamically loading crypto module */
-/*
- * Copyright 2020-2021 Howard Chu, Symas Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted only as authorized by the Symas
- * Dual-Use License.
- *
- * A copy of this license is available in the file LICENSE in the
- * source distribution.
- */
-
-void *mlm_load(const char *file, const char *name, MDB_crypto_funcs **mcf_ptr, char **errmsg);
-void mlm_unload(void *lm);
-void *mlm_setup(MDB_env *env, const char *file, const char *password, char **errmsg);
-void mlm_setup0(MDB_env *env, MDB_crypto_funcs *cf, const char *password);
-- 
2.47.2