LibC: Fix sockaddr_un implementation

libc/include/sys/socket.h

@@ -16,6 +16,12 @@ __BEGIN_DECLS
 #include <bits/types/sa_family_t.h>
 typedef long socklen_t;
 
+#if !defined(FILENAME_MAX)
+	#define FILENAME_MAX 256
+#elif FILENAME_MAX != 256
+	#error "invalid FILENAME_MAX"
+#endif
+
 struct sockaddr
 {
 	sa_family_t	sa_family;	/* Address family. */
@@ -24,8 +30,8 @@ struct sockaddr
 
 struct sockaddr_storage
 {
-	// FIXME
 	sa_family_t ss_family;
+	char		ss_storage[FILENAME_MAX];
 };
 
 struct msghdr

libc/include/sys/un.h

@@ -12,7 +12,7 @@ __BEGIN_DECLS
 struct sockaddr_un
 {
 	sa_family_t	sun_family;				/* Address family. */
-	char		sun_path[];	/* Socket pathname. */
+	char		sun_path[FILENAME_MAX];	/* Socket pathname. */
 };
 
 __END_DECLS

libc/sys/socket.cpp

@@ -22,7 +22,7 @@ int listen(int socket, int backlog)
 	return syscall(SYS_LISTEN, socket, backlog);
 }
 
-ssize_t revc(int socket, void* __restrict buffer, size_t length, int flags)
+ssize_t recv(int socket, void* __restrict buffer, size_t length, int flags)
 {
 	return recvfrom(socket, buffer, length, flags, nullptr, nullptr);
 }