From 1cf2ae1907e2e9cbaea2b1d92c9e72000bb76912 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Wed, 21 Apr 2021 08:55:38 +0200
Subject: [PATCH] ntdll: Support a full path name in the loadFrom dll
 redirection entry.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=50978
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/ntdll/loader.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 4a5422b52ac..9f614db01c5 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -2451,7 +2451,8 @@ static NTSTATUS build_dlldata_path( LPCWSTR libname, ACTCTX_SECTION_KEYED_DATA *
         memcpy( p, base + dlldata->paths[i].offset, dlldata->paths[i].len );
         p += dlldata->paths[i].len / sizeof(WCHAR);
     }
-    wcscpy( p, libname );
+    if (p == buffer || p[-1] == '\\') wcscpy( p, libname );
+    else *p = 0;
 
     if (dlldata->flags & DLL_REDIRECT_PATH_EXPAND)
     {
-- 
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