kernel32: Fix crash in dns_gethostbyname.

e716c5b1 · Rob Shearman · Alexandre Julliard · 3d025854 · e716c5b1
Commit e716c5b1 authored Feb 22, 2007 by Rob Shearman Committed by Alexandre Julliard Feb 23, 2007
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computername.c dlls/kernel32/computername.c +6 -1

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--- a/dlls/kernel32/computername.c
+++ b/dlls/kernel32/computername.c
@@ -89,9 +89,14 @@ static BOOL dns_gethostbyname ( char *name, int *size )
        ebufsize *= 2;
        extrabuf = HeapReAlloc( GetProcessHeap(), 0, extrabuf, ebufsize ) ;
    }
-    
+
    if ( res )
        WARN ("Error in gethostbyname_r %d (%d)\n", res, locerr);
+    else if ( !host )
+    {
+        WARN ("gethostbyname_r returned NULL host, locerr = %d\n", locerr);
+        res = 1;
+    }
    else
    {
        int len = strlen ( host->h_name );