1 files changed, 30 insertions, 5 deletions
diff --git a/protocol.h b/protocol.h
index 0cdc998..aeeaa54 100644
--- a/protocol.h
+++ b/protocol.h
@@ -1,16 +1,41 @@
 #include <stdint.h>  // Provides uint8_t, int8_t, etc.
 
-struct snowcast_message {
-    uint8_t type;
+// client to server messages (commands)
+
+struct Command {
+    uint8_t commandType;
     uint16_t number;
 } __attribute__((packed));
 
+struct Hello {
+    uint8_t commandType;
+    uint16_t udpPort;
+} __attribute__((packed));
+struct SetStation {
+    uint8_t commandType;
+    uint16_t stationNumber;
+} __attribute__((packed));
+
+// server to client message (replies)
 struct Welcome {
     uint8_t replyType;
     uint16_t numStations;
 } __attribute__((packed));
 
-struct Hello {
-    uint8_t commandType;
-    uint16_t udpPort;
+struct Reply {
+    uint8_t replyType;
+    uint8_t stringSize;
+} reply_t __attribute__((packed));
+struct Announce {
+    uint8_t replyType;
+    uint8_t songnameSize;
+    char *songname;
+} __attribute__((packed));
+struct InvalidCommand {
+    uint8_t replyType;
+    uint8_t replyStringSize;
+    char *replyString;
 } __attribute__((packed));
+
+int send_all(int sock, char *buf, int *len);
+int recv_all(int sock, char *buf, int *len);