Add socket and IPv4 support for x86_64

socktest.c

@@ -0,0 +1,92 @@
+#include "sys.h"
+#include "int.h"
+#include "net/ipv4.h"
+
+int main() {
+	char recvBuff[4096];
+  int socket_fd, connection_fd;
+	int c;
+	struct sockaddr_in server, client;
+	server.sin_family = AF_INET;
+	server.sin_addr.s_addr = INADDR_ANY;
+	//server.sin_port = htons( 6969 );
+	server.sin_port = 0x391b;
+
+  // Create the socket
+	socket_fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (socket_fd < 0) {
+		write(STDERR, "Socket error\n", 13);
+		close(socket_fd);
+		return(1);
+	}
+
+	// Set socket options
+	int opt = 1;
+	if(0 > setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) {
+		write(STDERR, "Socket error\n", 13);
+		close(socket_fd);
+		return(2);
+	}
+	
+	// Bind the socket
+	if( bind(socket_fd, (struct sockaddr *)&server, sizeof(server)) < 0) {
+		write(STDERR, "Socket error\n", 13);
+		close(socket_fd);
+		return(3);
+	}
+
+	// Listen for incoming connections
+	if (listen(socket_fd, 3) < 0) {
+    return 4;
+  }
+	write(STDOUT, "Waiting for incoming connections...\n", 36);
+	
+	// Get the new connection
+	c = sizeof(struct sockaddr_in);
+	connection_fd = accept(socket_fd, (void *)&client, (uint64_t*)&c);
+	write(STDOUT, "Got new connection\n", 19);
+	if(connection_fd < 0) {
+		write(STDERR, "Connection error\n", 17);
+		close(connection_fd);
+		close(socket_fd);
+		return(5);
+	}
+
+
+	//char *client_ip   = inet_ntoa(client.sin_addr);
+	//int   client_port = ntohs(client.sin_port);
+	//printf("Connection accepted from %s:%d\n", client_ip, client_port);
+
+	// Send stuff
+	write(STDOUT, "Connection Established!\n", 24);
+	if( send(connection_fd, "Connection Established!\n", 24, 0) < 0) {
+		write(STDERR, "Connection error\n", 17);
+		close(connection_fd);
+		close(socket_fd);
+		return(6);
+	}
+
+	// Recieve stuff
+  write(STDOUT, "Recieving data...\n", 18);
+	for(;;) {
+		int64_t incoming = recv(connection_fd, recvBuff, 4096, 0);
+		if( incoming < 0) {
+      write(STDERR, "Connection error\n", 17);
+			close(connection_fd);
+			close(socket_fd);
+			return(7);
+		}if(incoming == 0) break;
+
+		// Print the recieved data
+		write(STDOUT, recvBuff, incoming);
+	}
+
+	write(STDOUT, "Closing connection\n", 19);
+	close(connection_fd);
+	close(socket_fd);
+	return 0;
+}
+
+void _start() {
+  exit(main());
+}