implement extra credit

1 files changed, 17 insertions, 14 deletions

diff --git a/protocol.h b/protocol.h
index aeeaa54..33ffb07 100644
--- a/protocol.h
+++ b/protocol.h
@@ -2,40 +2,43 @@
 
 // client to server messages (commands)
 
-struct Command {
-    uint8_t commandType;
-    uint16_t number;
-} __attribute__((packed));
-
 struct Hello {
-    uint8_t commandType;
+    uint8_t commandType; // 0
     uint16_t udpPort;
 } __attribute__((packed));
 struct SetStation {
-    uint8_t commandType;
+    uint8_t commandType; // 1
     uint16_t stationNumber;
 } __attribute__((packed));
 
+struct ListStations {
+    uint8_t commandType; // 5
+} __attribute__((packed));
+
 // server to client message (replies)
 struct Welcome {
-    uint8_t replyType;
+    uint8_t replyType; // 2
     uint16_t numStations;
 } __attribute__((packed));
 
-struct Reply {
-    uint8_t replyType;
-    uint8_t stringSize;
-} reply_t __attribute__((packed));
 struct Announce {
-    uint8_t replyType;
+    uint8_t replyType; // 3
     uint8_t songnameSize;
     char *songname;
 } __attribute__((packed));
+
 struct InvalidCommand {
-    uint8_t replyType;
+    uint8_t replyType; // 4
     uint8_t replyStringSize;
     char *replyString;
 } __attribute__((packed));
 
+struct StationInfo {
+    uint8_t replyType; // 6
+    uint8_t infoStringSize;
+    char *infoString;
+} __attribute__((packed));
+
+
 int send_all(int sock, char *buf, int *len);
 int recv_all(int sock, char *buf, int *len);