Merge pull request #3578 from tfar/sandbox/tobias/2015/08/cbor_bytestring_api

cbor: add API to encode non null-terminated byte strings

sys/cbor/cbor.c

@@ -576,6 +576,11 @@ size_t cbor_serialize_byte_string(cbor_stream_t *stream, const char *val)
     return encode_bytes(CBOR_BYTES, stream, val, strlen(val));
 }
 
+size_t cbor_serialize_byte_stringl(cbor_stream_t *stream, const char *val, size_t length)
+{
+    return encode_bytes(CBOR_BYTES, stream, val, length);
+}
+
 size_t cbor_deserialize_unicode_string(const cbor_stream_t *stream, size_t offset, char *val,
                                        size_t length)
 {

sys/include/cbor.h

@@ -370,6 +370,17 @@ size_t cbor_deserialize_double(const cbor_stream_t *stream, size_t offset,
  */
 size_t cbor_serialize_byte_string(cbor_stream_t *stream, const char *val);
 
+/**
+ * @brief Serializes an arbitrary byte string
+ *
+ * @param[out] stream   The destination stream for serializing the byte stream
+ * @param[in] val       The arbitrary byte string which may include null bytes
+ * @param[in] length    The size of the byte string in bytes
+ *
+ * @return Number of bytes written to stream @p stream
+ */
+size_t cbor_serialize_byte_stringl(cbor_stream_t *stream, const char *val, size_t length);
+
 /**
  * @brief Deserialize bytes from @p stream to @p val
  *