Split code out into separate compilation units (first pass, anyway).

params.h

@@ -0,0 +1,64 @@
+#ifndef __PARAMS_H
+#define __PARAMS_H
+
+#define _GNU_SOURCE
+#define _LARGEFILE64_SOURCE
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+union mysockaddr {
+	unsigned short      family;
+	struct sockaddr     generic;
+        struct sockaddr_in  v4;
+        struct sockaddr_in6 v6;
+};
+
+struct ip_and_mask {
+	union mysockaddr ip;
+	int              mask;
+};
+
+struct mode_serve_params {
+	union mysockaddr     bind_to;
+	int                  acl_entries;
+	struct ip_and_mask** acl;
+	char*                filename;
+	int                  tcp_backlog;
+	
+	int                  server;
+	int                  threads;
+	
+	pthread_mutex_t      block_allocation_map_lock;
+	char*                block_allocation_map;
+};
+
+struct mode_readwrite_params {
+	union mysockaddr     connect_to;
+	off64_t              from;
+	off64_t              len;
+	int                  data_fd;
+	int                  client;
+};
+
+struct client_params {
+	int     socket;
+	char*   filename;
+	
+	int     fileno;
+	off64_t size;
+	char*   mapped;
+	
+	pthread_mutex_t      block_allocation_map_lock;
+	char*                block_allocation_map;
+};
+
+union mode_params {
+	struct mode_serve_params serve;
+	struct mode_readwrite_params readwrite;
+};
+
+#endif
+