-/* Necessary headers */
-
-#include <sys/types.h> /* For [u]intxx_t */
-#include <sys/socket.h> /* For SHUT_XXXX */
-#include <sys/param.h> /* For MAXPATHLEN */
-#include <netinet/in_systm.h> /* For typedefs */
-#include <netinet/in.h> /* For IPv6 macros */
-#include <netinet/ip.h> /* For IPTOS macros */
-#ifdef HAVE_SYS_UN_H
-# include <sys/un.h> /* For SUN_LEN */
-#endif
-#ifdef HAVE_SYS_BITYPES_H
-# include <sys/bitypes.h> /* For u_intXX_t */
-#endif
-#ifdef HAVE_PATHS_H
-# include <paths.h> /* For _PATH_XXX */
-#endif
-#ifdef HAVE_LIMITS_H
-# include <limits.h> /* For PATH_MAX */
-#endif
-#ifdef HAVE_SYS_TIME_H
-# include <sys/time.h> /* For timersub */
-#endif
-#ifdef HAVE_MAILLOCK_H
-# include <maillock.h> /* For _PATH_MAILDIR */
-#endif
-#ifdef HAVE_SYS_CDEFS_H
-# include <sys/cdefs.h> /* For __P() */
-#endif
-#ifdef HAVE_SYS_SYSMACROS_H
-# include <sys/sysmacros.h> /* For MIN, MAX, etc */
-#endif
-#ifdef HAVE_SYS_STAT_H
-# include <sys/stat.h> /* For S_* constants and macros */
-#endif
-#ifdef HAVE_NEXT
-# include <libc.h>
-#endif
-
-#include <unistd.h> /* For STDIN_FILENO, etc */
-#include <termios.h> /* Struct winsize */