successfully build c interface

1 files changed, 32 insertions, 6 deletions

diff --git a/include/zaprus.h b/include/zaprus.h
index 31fe97c..b442753 100644
--- a/include/zaprus.h
+++ b/include/zaprus.h
@@ -1,24 +1,50 @@
 // client
 
+#include<stdint.h>
+#include<stdlib.h>
+
 int zaprus_init(void);
 
 int zaprus_deinit(void);
 
-int zaprus_send_relay(const char* payload, usize len, char[4] dest);
+int zaprus_send_relay(const char* payload, size_t len, char dest[4]);
 
-int zaprus_send_initial_connection(const char* payload, usize len, uint16_t initial_port);
+int zaprus_send_initial_connection(const char* payload, size_t len, uint16_t initial_port);
 
-struct SaprusMessage* zaprus_connect(const char* payload, usize len);
+struct SaprusMessage* zaprus_connect(const char* payload, size_t len);
 
 // message
+#define SAPRUS_RELAY_MESSAGE_TYPE 0x003C
+#define SAPRUS_FILE_TRANSFER_MESSAGE_TYPE 0x8888
+#define SAPRUS_CONNECTION_MESSAGE_TYPE 0x00E9
+
 struct SaprusMessage {
-  
+  uint16_t packet_type;
+  union {
+    struct {
+      struct {
+	char dest[4];
+      };
+      char *payload;
+    } relay;
+    struct {
+      struct {
+	uint16_t src_port;
+	uint16_t dest_port;
+	uint32_t seq_num;
+	uint32_t msg_id;
+	char _reserved;
+	char options;
+      };
+      char *payload;
+    } connection;
+  };
 };
 
 // ptr should be freed by the caller.
-int zaprus_message_to_bytes(struct SaprusMessage msg, char** ptr, usize* len);
+int zaprus_message_to_bytes(struct SaprusMessage msg, char** ptr, size_t* len);
 
 // Return value should be destroyed with zaprus_message_deinit.
-struct SaprusMessage* zaprus_message_from_bytes(const char* bytes, usize len);
+struct SaprusMessage* zaprus_message_from_bytes(const char* bytes, size_t len);
 
 void zaprus_message_deinit(struct SaprusMessage* msg);