1 files changed, 68 insertions, 0 deletions
diff --git a/pgm7/common.h b/pgm7/common.h
new file mode 100644
index 0000000..6775ade
--- /dev/null
+++ b/pgm7/common.h
@@ -0,0 +1,68 @@
+#ifndef COMMON_H
+
+#define COMMON_H
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <sys/stat.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+/************************************************************
+ All "messages" sent between server and clients in the
+ distributed tic-tac-toe system are in the format defined
+ by struct tttmsg. The structure of the message is determined
+ by the type field:
+
+ type=A   WHO              no other fields used
+ type=B   HANDLE           data is the string handle for ttt
+                            sending this message
+ type=C   MATCH            data is string handle of opponent;
+                            board[0] is 'X' or 'O' to denote
+                            character this ttt is using
+ type=D   WHATMOVE         board[] contains X/O/space chars
+                            to denote current state
+ type=E   MOVE             res (ascii) indicates square into
+                            which client is moving
+ type=F   RESULT           board[] contains X/O/space chars
+                            to denote current state;
+                            res =   W -> you win
+                                    L -> you lose
+                                    D -> draw
+************************************************************/
+
+#define WHO 'A'
+#define HANDLE 'B'
+#define MATCH 'C'
+#define WHATMOVE 'D'
+#define MOVE 'E'
+#define RESULT 'F'
+#define RESIGNED 'R'
+#define ABORT '*'
+
+struct tttmsg{
+  char type;     /* Message type */
+  char board[9]; /* X/O */
+  char data[32]; /* null-terminated string */
+  char res;      /* integer data */
+};
+
+#define SFILE "./serverloc"
+
+void putmsg(int, struct tttmsg *);
+void getmsg(int, struct tttmsg *);
+void protocol_error(char, struct tttmsg *);
+void dumpmsg(struct tttmsg *);
+void init_board();
+void dump_board(FILE *, char *);
+int check_board(int);
+
+#endif