Integrate contributed implementation into Mbed TLS
A reduced implementation of the snprintf function has been provided.
This commit integrates it with Mbed TLS by putting it in the platform.c
translation unit and making it configurable via the config file.
Additionally the code has been formated to fit Mbed TLS style
guidelines.
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 1c98558..6737816 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -195,6 +195,22 @@
//#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT
/**
+ * \def MBEDTLS_PLATFORM_TF_SNPRINTF
+ *
+ * Uncomment to enable the reduced snprintf to be used for trusted firmware.
+ *
+ * \warning Only The following type specifiers are supported:
+ * %d or %i - signed decimal format
+ * %u - unsigned decimal format
+ * The print panics on all other formats specifiers.
+ *
+ * \warning MBEDTLS_PLATFORM_SNPRINTF_ALT cannot be defined at the same time as
+ * MBEDTLS_PLATFORM_TF_SNPRINTF!
+ *
+ */
+//#define MBEDTLS_PLATFORM_TF_SNPRINTF
+
+/**
* \def MBEDTLS_DEPRECATED_WARNING
*
* Mark deprecated functions so that they generate a warning if used.