Marcus Meissner : wininet: Split out NULL ptr and function ptr check.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ed966469a4d2ae1c7d5ddad1b9d74e8d4d0783b9
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ed966469a4d2ae1c7d5ddad1b9d74e8d4d0783b9

Author: Marcus Meissner <marcus at jet.franken.de>
Date:   Fri Mar 14 22:34:54 2008 +0100

wininet: Split out NULL ptr and function ptr check.

---

 dlls/wininet/internet.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/dlls/wininet/internet.c b/dlls/wininet/internet.c
index d5fbbc1..be1ee16 100644
--- a/dlls/wininet/internet.c
+++ b/dlls/wininet/internet.c
@@ -1704,11 +1704,16 @@ BOOL WINAPI InternetWriteFile(HINTERNET hFile, LPCVOID lpBuffer,
     TRACE("(%p %p %d %p)\n", hFile, lpBuffer, dwNumOfBytesToWrite, lpdwNumOfBytesWritten);
 
     lpwh = WININET_GetObject( hFile );
+    if (!lpwh) {
+        WARN("Invalid handle\n");
+        SetLastError(ERROR_INVALID_HANDLE);
+        return FALSE;
+    }
 
-    if(lpwh && lpwh->vtbl->WriteFile) {
+    if(lpwh->vtbl->WriteFile) {
         retval = lpwh->vtbl->WriteFile(lpwh, lpBuffer, dwNumOfBytesToWrite, lpdwNumOfBytesWritten);
     }else {
-        WARN("Invalid handle\n");
+        WARN("No Writefile method.\n");
         SetLastError(ERROR_INVALID_HANDLE);
         retval = FALSE;
     }
@@ -1848,7 +1853,7 @@ static BOOL INET_QueryOptionHelper(BOOL bIsUnicode, HINTERNET hInternet, DWORD d
 
     TRACE("(%p, 0x%08x, %p, %p)\n", hInternet, dwOption, lpBuffer, lpdwBufferLength);
 
-    lpwhh = (LPWININETHANDLEHEADER) WININET_GetObject( hInternet );
+    lpwhh = WININET_GetObject( hInternet );
 
     switch (dwOption)
     {