Platform abstraction layer for memory, printf and fprintf
diff --git a/library/platform.c b/library/platform.c
new file mode 100644
index 0000000..32f949f
--- /dev/null
+++ b/library/platform.c
@@ -0,0 +1,80 @@
+/*
+ * Platform abstraction layer
+ *
+ * Copyright (C) 2006-2014, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_PLATFORM_C)
+
+#include "polarssl/platform.h"
+
+#if defined(POLARSSL_PLATFORM_PRINTF_ALT)
+#if !defined(POLARSSL_PLATFORM_STD_PRINTF)
+/*
+ * Make dummy function to prevent NULL pointer dereferences
+ */
+static int platform_printf_uninit( const char *format, ... )
+{
+ ((void) format);
+ return( 0 );
+}
+
+#define POLARSSL_PLATFORM_STD_PRINTF platform_printf_uninit
+#endif /* !POLARSSL_PLATFORM_STD_PRINTF */
+
+int (*polarssl_printf)( const char *, ... ) = POLARSSL_PLATFORM_STD_PRINTF;
+
+int platform_set_printf( int (*printf_func)( const char *, ... ) )
+{
+ polarssl_printf = printf_func;
+ return( 0 );
+}
+#endif /* POLARSSL_PLATFORM_PRINTF_ALT */
+
+#if defined(POLARSSL_PLATFORM_FPRINTF_ALT)
+#if !defined(POLARSSL_PLATFORM_STD_FPRINTF)
+/*
+ * Make dummy function to prevent NULL pointer dereferences
+ */
+static int platform_fprintf_uninit( FILE *stream, const char *format, ... )
+{
+ ((void) stream);
+ ((void) format);
+ return( 0 );
+}
+
+#define POLARSSL_PLATFORM_STD_fPRINTF platform_fprintf_uninit
+#endif /* !POLARSSL_PLATFORM_STD_FPRINTF */
+
+int (*polarssl_fprintf)( FILE *, const char *, ... ) =
+ POLARSSL_PLATFORM_STD_FPRINTF;
+
+int platform_set_fprintf( int (*fprintf_func)( FILE *, const char *, ... ) )
+{
+ polarssl_fprintf = fprintf_func;
+ return( 0 );
+}
+#endif /* POLARSSL_PLATFORM_FPRINTF_ALT */
+
+#endif /* POLARSSL_PLATFORM_C */