Zebediah Figura : httpapi: Allow passing NULL size to HttpReceiveRequestEntityBody().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: c9f628042216eea338a154f0585003fe9187bacc
URL:    https://gitlab.winehq.org/wine/wine/-/commit/c9f628042216eea338a154f0585003f...

Author: Zebediah Figura <zfigura(a)codeweavers.com>
Date:   Tue Dec 20 00:57:38 2022 -0600

httpapi: Allow passing NULL size to HttpReceiveRequestEntityBody().

---

 dlls/httpapi/httpapi_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/httpapi/httpapi_main.c b/dlls/httpapi/httpapi_main.c
index cd00608c1ca..10131fdd029 100644
--- a/dlls/httpapi/httpapi_main.c
+++ b/dlls/httpapi/httpapi_main.c
@@ -278,6 +278,7 @@ ULONG WINAPI HttpReceiveRequestEntityBody(HANDLE queue, HTTP_REQUEST_ID id, ULON
         .bits = sizeof(void *) * 8,
     };
     ULONG ret = ERROR_SUCCESS;
+    ULONG local_ret_size;
     OVERLAPPED sync_ovl;
 
     TRACE("queue %p, id %s, flags %#lx, buffer %p, size %#lx, ret_size %p, ovl %p.\n",
@@ -292,6 +293,9 @@ ULONG WINAPI HttpReceiveRequestEntityBody(HANDLE queue, HTTP_REQUEST_ID id, ULON
         ovl = &sync_ovl;
     }
 
+    if (!ret_size)
+        ret_size = &local_ret_size;
+
     if (!DeviceIoControl(queue, IOCTL_HTTP_RECEIVE_BODY, ¶ms, sizeof(params), buffer, size, ret_size, ovl))
         ret = GetLastError();