First attempt to make the legacy app build.

analysis/building.md

@@ -0,0 +1,17 @@
+# Building the Legacy Server
+
+In order to make the game server build, I had to follow the author's instructions:
+
+```
+/* This program compiles for Sparc Solaris 2.6.
+ * To compile for Linux:
+ *  1) Comment out the #include <pthread.h> line.
+ *  2) Comment out the line that defines the variable newthread.
+ *  3) Comment out the two lines that run pthread_create().
+ *  4) Uncomment the line that runs accept_request().
+ *  5) Remove -lsocket from the Makefile.
+ */
+```
+
+However, these instructions seemed to be out of date; there are not two occurances
+of `pthread_create`, and the server does not work with these modifications.

legacy/httpd.c

@@ -22,7 +22,8 @@
 #include <strings.h>
 #include <string.h>
 #include <sys/stat.h>
-#include <pthread.h>
+// Commented out in order to build on Linux
+//#include <pthread.h>
 #include <sys/wait.h>
 #include <stdlib.h>
 
@@ -505,7 +506,8 @@ int main(void)
 	u_short port = 9999;
 	struct sockaddr_in client_name;
 	socklen_t client_name_len = sizeof(client_name);
-	pthread_t newthread;
+    // Commented out to build on Linux
+	//pthread_t newthread;
 
 	signal(SIGPIPE, SIG_IGN);
 
@@ -520,10 +522,12 @@ int main(void)
 			error_die("accept");
 		}
 
-		if (pthread_create(&newthread , NULL, (void *)accept_request, (void *)&client_sock) != 0)
+        // Commented out in order to build on Linux
+		/* if (pthread_create(&newthread , NULL, (void *)accept_request, (void *)&client_sock) != 0)
 		{
 			perror("pthread_create");
 		}
+        */
 	}
 
 	close(server_sock);