Kernel/LibC: Implement SYS_SENDTO

libc/include/sys/socket.h

@@ -105,6 +105,16 @@ struct linger
 #define SHUT_WR		0x02
 #define SHUT_RDWR	(SHUT_RD | SHUT_WR)
 
+struct sys_sendto_t
+{
+	int socket;
+	const void* message;
+	size_t length;
+	int flags;
+	const struct sockaddr* dest_addr;
+	socklen_t dest_len;
+};
+
 int		accept(int socket, struct sockaddr* __restrict address, socklen_t* __restrict address_len);
 int		bind(int socket, const struct sockaddr* address, socklen_t address_len);
 int		connect(int socket, const struct sockaddr* address, socklen_t address_len);

libc/include/sys/syscall.h

@@ -65,6 +65,7 @@ __BEGIN_DECLS
 #define SYS_LOAD_KEYMAP 64
 #define SYS_SOCKET 65
 #define SYS_BIND 66
+#define SYS_SENDTO 67
 
 __END_DECLS
 

libc/sys/socket.cpp

@@ -7,6 +7,19 @@ int bind(int socket, const struct sockaddr* address, socklen_t address_len)
 	return syscall(SYS_BIND, socket, address, address_len);
 }
 
+ssize_t sendto(int socket, const void* message, size_t length, int flags, const struct sockaddr* dest_addr, socklen_t dest_len)
+{
+	sys_sendto_t arguments {
+		.socket = socket,
+		.message = message,
+		.length = length,
+		.flags = flags,
+		.dest_addr = dest_addr,
+		.dest_len = dest_len
+	};
+	return syscall(SYS_SENDTO, &arguments);
+}
+
 int socket(int domain, int type, int protocol)
 {
 	return syscall(SYS_SOCKET, domain, type, protocol);