GetDiskFreeSpaceEx32A can get null pointers and still not crash.

6ec6492f · Eric Pouech · Alexandre Julliard · 9be2f2a8 · 6ec6492f
Commit 6ec6492f authored Feb 02, 1999 by Eric Pouech Committed by Alexandre Julliard Feb 02, 1999
Hide whitespace changes
Inline Side-by-side

Showing with 8 additions and 4 deletions

drive.c files/drive.c +8 -4

No files found.
--- a/files/drive.c
+++ b/files/drive.c
@@ -827,10 +827,14 @@ BOOL32 WINAPI GetDiskFreeSpaceEx32A( LPCSTR root,
    }
    if (!DRIVE_GetFreeSpace(drive, &size, &available)) return FALSE;
    /*FIXME: Do we have the number of bytes available to the user? */
-    avail->HighPart = available.HighPart;
-    totalfree->HighPart = size.HighPart;
-    avail->LowPart = available.LowPart ;
-    totalfree->LowPart = size.LowPart ;
+    if (totalfree) {
+    	totalfree->HighPart = size.HighPart;
+    	totalfree->LowPart = size.LowPart ;
+    }
+    if (avail) {
+        avail->HighPart = available.HighPart;
+        avail->LowPart = available.LowPart ;
+    }
    return TRUE;
 }