ws2_32: Avoid accessing uninitialized memory in GetAddrInfoW.

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ws2_32: Avoid accessing uninitialized memory in GetAddrInfoW.
140eede6 · Hans Leidekker · Alexandre Julliard · 5e18596f · 140eede6
Commit 140eede6 authored Oct 29, 2009 by Hans Leidekker Committed by Alexandre Julliard Oct 29, 2009
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socket.c dlls/ws2_32/socket.c +2 -0

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--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -3962,6 +3962,8 @@ int WINAPI GetAddrInfoW(LPCWSTR nodename, LPCWSTR servname, const ADDRINFOW *hin
    char *nodenameA, *servnameA = NULL;
    struct WS_addrinfo *resA, *hintsA = NULL;

+    if (!nodename) return WSAHOST_NOT_FOUND;
+
    len = WideCharToMultiByte(CP_ACP, 0, nodename, -1, NULL, 0, NULL, NULL);
    if (!(nodenameA = HeapAlloc(GetProcessHeap(), 0, len))) return EAI_MEMORY;
    WideCharToMultiByte(CP_ACP, 0, nodename, -1, nodenameA, len, NULL, NULL);