Move utilities to util/

app/src/util/net.h

@@ -0,0 +1,57 @@
+#ifndef NET_H
+#define NET_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <SDL2/SDL_platform.h>
+
+#ifdef __WINDOWS__
+# include <winsock2.h>
+  #define SHUT_RD SD_RECEIVE
+  #define SHUT_WR SD_SEND
+  #define SHUT_RDWR SD_BOTH
+  typedef SOCKET socket_t;
+#else
+# include <sys/socket.h>
+# define INVALID_SOCKET -1
+  typedef int socket_t;
+#endif
+
+#include "config.h"
+
+bool
+net_init(void);
+
+void
+net_cleanup(void);
+
+socket_t
+net_connect(uint32_t addr, uint16_t port);
+
+socket_t
+net_listen(uint32_t addr, uint16_t port, int backlog);
+
+socket_t
+net_accept(socket_t server_socket);
+
+// the _all versions wait/retry until len bytes have been written/read
+ssize_t
+net_recv(socket_t socket, void *buf, size_t len);
+
+ssize_t
+net_recv_all(socket_t socket, void *buf, size_t len);
+
+ssize_t
+net_send(socket_t socket, const void *buf, size_t len);
+
+ssize_t
+net_send_all(socket_t socket, const void *buf, size_t len);
+
+// how is SHUT_RD (read), SHUT_WR (write) or SHUT_RDWR (both)
+bool
+net_shutdown(socket_t socket, int how);
+
+bool
+net_close(socket_t socket);
+
+#endif