Paul Gofman : winhttp: Check for NULL lpszAutoConfigUrl in WinHttpGetProxyForUrl().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2b0cd25b5f5794463a59cac999583fb52fa021cc
URL:    https://gitlab.winehq.org/wine/wine/-/commit/2b0cd25b5f5794463a59cac999583fb...

Author: Paul Gofman 
Date:   Mon Dec 19 10:22:15 2022 -0600

winhttp: Check for NULL lpszAutoConfigUrl in WinHttpGetProxyForUrl().

Fixes a regression introduced by
cbfe940a1eaf5e158de3127b1265462bfbfb70af.

---

dlls/winhttp/session.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/winhttp/session.c b/dlls/winhttp/session.c
index 65e471f7ee5..6b426bee220 100644
--- a/dlls/winhttp/session.c
+++ b/dlls/winhttp/session.c
@@ -2094,7 +2094,8 @@ BOOL WINAPI WinHttpGetProxyForUrl( HINTERNET hsession, LPCWSTR url, WINHTTP_AUTO
         !(options->dwFlags & (WINHTTP_AUTOPROXY_AUTO_DETECT|WINHTTP_AUTOPROXY_CONFIG_URL)) ||
         ((options->dwFlags & WINHTTP_AUTOPROXY_AUTO_DETECT) && !options->dwAutoDetectFlags) ||
         ((options->dwFlags & WINHTTP_AUTOPROXY_AUTO_DETECT) &&
-         (options->dwFlags & WINHTTP_AUTOPROXY_CONFIG_URL)))
+         (options->dwFlags & WINHTTP_AUTOPROXY_CONFIG_URL)) ||
+        (options->dwFlags & WINHTTP_AUTOPROXY_CONFIG_URL && !options->lpszAutoConfigUrl))
     {
         release_object( &session->hdr );
         SetLastError( ERROR_INVALID_PARAMETER );