Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

dll/3rdparty/mbedtls/_reactos_strsafe_wrapper.c

@@ -0,0 +1,50 @@
+/*
+ * Handy secure string adapter functions for mbedTLS,
+ * converting from `StringCchVPrintfEx` to `_vsnprintf_s`.
+ *
+ * Copyright 2015 Ismael Ferreras Morezuelas <swyterzone+ros@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <windef.h>
+#include <strsafe.h>
+
+int _vsnprintf_s(char *buffer, size_t sizeOfBuffer, size_t count, const char *format, va_list argptr)
+{
+    size_t cchRemaining;
+
+    HRESULT ret = StringCchVPrintfEx(buffer, sizeOfBuffer, NULL, &cchRemaining, 0, format, argptr);
+
+    // EXAMPLE //////////////////////////
+    // -------- > Size of provided buffer in chars (8).
+    // ABC0____ > Buffer contents after StringCchVPrintfEx gets called.
+    // ---      > What we actually need to return (3).
+    //    ----- > Remaining chars in buffer, including post string NULL, returned by StringCchVPrintfEx (5).
+
+    /* _vsnprintf_s returns the number of characters written, not including
+       the terminating null, or a negative value if an output error occurs.  */
+
+    switch (ret)
+    {
+        case S_OK:
+            return (sizeOfBuffer - cchRemaining);
+
+        case STRSAFE_E_INVALID_PARAMETER:
+        case STRSAFE_E_INSUFFICIENT_BUFFER:
+        default:
+            return -1;
+    }
+}