[PATCH v2 1/2] wininet: Fix handling of empty strings in urlcache_hash_key.

[Yuxuan Shui]

From: Yuxuan Shui

---
 dlls/wininet/urlcache.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/dlls/wininet/urlcache.c b/dlls/wininet/urlcache.c
index 7975071ce91..366fa0b6bea 100644
--- a/dlls/wininet/urlcache.c
+++ b/dlls/wininet/urlcache.c
@@ -1461,11 +1461,12 @@ static DWORD urlcache_hash_key(LPCSTR lpszKey)
     for (i = 0; i < ARRAY_SIZE(key); i++)
         key[i] = lookupTable[(*lpszKey + i) & 0xFF];

-    for (lpszKey++; *lpszKey; lpszKey++)
-    {
-        for (i = 0; i < ARRAY_SIZE(key); i++)
-            key[i] = lookupTable[*lpszKey ^ key[i]];
-    }
+    if (*lpszKey)
+        for (lpszKey++; *lpszKey; lpszKey++)
+        {
+            for (i = 0; i < ARRAY_SIZE(key); i++)
+                key[i] = lookupTable[*lpszKey ^ key[i]];
+        }

return *(DWORD *)key;
 }