first commit

socket.h

@@ -0,0 +1,82 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#ifdef _WIN32
+    #define SOCK_WINDOWS 1
+#else
+    #define SOCK_POSIX 1
+#endif
+
+struct sockaddr;
+
+#if SOCK_WINDOWS
+    typedef uintptr_t socket_t;
+    typedef int socket_len_t;
+    #define INVALID_SOCKET  (socket_t)(~0)
+    #define SOCKET_ERROR              (-1)
+#elif SOCK_POSIX
+    typedef int socket_t;
+    typedef uint32_t socket_len_t;
+    #define INVALID_SOCKET (-1)
+    #define SOCKET_ERROR   (-1)
+#endif
+
+// Initialize sockets, returns true on success
+bool skInit();
+// Terminates sockets, returns true on success
+bool skCleanup();
+
+// Opens a socket, check socket_t with skValid
+socket_t skOpen();
+// Opens a socket using 'protocol', options are 
+// ip, icmp, ggp, tcp, egp, pup, udp, hmp, xns-idp, rdp
+// check socket_t with skValid
+socket_t skOpenEx(const char *protocol);
+// Opens a socket, check socket_t with skValid
+socket_t skOpenPro(int af, int type, int protocol);
+
+// Closes a socket, returns true on success
+bool skClose(socket_t sock);
+
+// Associate a local address with a socket
+bool skBind(socket_t sock, const char *ip, uint16_t port);
+// Associate a local address with a socket
+bool skBindPro(socket_t sock, const struct sockaddr *name, socket_len_t namelen);
+
+// Place a socket in a state in which it is listening for an incoming connection
+bool skListen(socket_t sock);
+// Place a socket in a state in which it is listening for an incoming connection
+bool skListenPro(socket_t sock, int backlog);
+
+// Permits an incoming connection attempt on a socket
+socket_t skAccept(socket_t sock);
+// Permits an incoming connection attempt on a socket
+socket_t skAcceptPro(socket_t sock, struct sockaddr *addr, socket_len_t *addrlen);
+
+// Connects to a server (e.g. "127.0.0.1" or "google.com") with a port(e.g. 1234), returns true on success
+bool skConnect(socket_t sock, const char *server, unsigned short server_port);
+// Connects to a server, returns true on success
+bool skConnectPro(socket_t sock, const struct sockaddr *name, socket_len_t namelen);
+
+// Sends data on a socket, returns true on success
+int skSend(socket_t sock, char *buf, int len);
+// Receives data from a socket, returns byte count on success, 0 on connection close or -1 on error
+int skReceive(socket_t sock, char *buf, int len);
+
+// Checks that a opened socket is valid, returns true on success
+bool skIsValid(socket_t sock);
+
+// Returns latest socket error, returns 0 if there is no error
+int skGetError();
+// Returns a human-readable string from a skGetError
+const char *skGetErrorString();
+
+#ifdef __cplusplus
+} // extern "C"
+#endif