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-rw-r--r--bits/confname.h325
-rw-r--r--bits/ioctl-types.h121
-rw-r--r--bits/mathdef.h40
-rw-r--r--bits/resource.h146
-rw-r--r--bits/sched.h35
-rw-r--r--bits/select.h29
-rw-r--r--bits/sigaction.h50
-rw-r--r--bits/sigset.h81
-rw-r--r--bits/sockaddr.h41
-rw-r--r--bits/socket.h200
-rw-r--r--bits/statfs.h52
-rw-r--r--bits/termios.h230
-rw-r--r--bits/types.h94
-rw-r--r--bits/uio.h32
-rw-r--r--bits/ustat.h30
-rw-r--r--bits/utmp.h53
-rw-r--r--bits/utsname.h3
-rw-r--r--bits/waitstatus.h104
18 files changed, 1666 insertions, 0 deletions
diff --git a/bits/confname.h b/bits/confname.h
new file mode 100644
index 0000000000..5b5cf742b6
--- /dev/null
+++ b/bits/confname.h
@@ -0,0 +1,325 @@
+/* `sysconf', `pathconf', and `confstr' NAME values.  Generic version.
+   Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Values for the NAME argument to `pathconf' and `fpathconf'.  */
+enum
+  {
+    _PC_LINK_MAX,
+#define	_PC_LINK_MAX			_PC_LINK_MAX
+    _PC_MAX_CANON,
+#define	_PC_MAX_CANON			_PC_MAX_CANON
+    _PC_MAX_INPUT,
+#define	_PC_MAX_INPUT			_PC_MAX_INPUT
+    _PC_NAME_MAX,
+#define	_PC_NAME_MAX			_PC_NAME_MAX
+    _PC_PATH_MAX,
+#define	_PC_PATH_MAX			_PC_PATH_MAX
+    _PC_PIPE_BUF,
+#define	_PC_PIPE_BUF			_PC_PIPE_BUF
+    _PC_CHOWN_RESTRICTED,
+#define	_PC_CHOWN_RESTRICTED		_PC_CHOWN_RESTRICTED
+    _PC_NO_TRUNC,
+#define	_PC_NO_TRUNC			_PC_NO_TRUNC
+    _PC_VDISABLE,
+    _PC_SYNC_IO,
+#define	_PC_SYNC_IO			_PC_SYNC_IO
+    _PC_ASYNC_IO,
+#define	_PC_ASYNC_IO			_PC_ASYNC_IO
+    _PC_PRIO_IO,
+#define	_PC_PRIO_IO			_PC_PRIO_IO
+    _PC_SOCK_MAXBUF
+#define	_PC_SOCK_MAXBUF			_PC_SOCK_MAXBUF
+  };
+
+/* Values for the argument to `sysconf'.  */
+enum
+  {
+    _SC_ARG_MAX,
+#define	_SC_ARG_MAX			_SC_ARG_MAX
+    _SC_CHILD_MAX,
+#define	_SC_CHILD_MAX			_SC_CHILD_MAX
+    _SC_CLK_TCK,
+#define	_SC_CLK_TCK			_SC_CLK_TCK
+    _SC_NGROUPS_MAX,
+#define	_SC_NGROUPS_MAX			_SC_NGROUPS_MAX
+    _SC_OPEN_MAX,
+#define	_SC_OPEN_MAX			_SC_OPEN_MAX
+    _SC_STREAM_MAX,
+#define	_SC_STREAM_MAX			_SC_STREAM_MAX
+    _SC_TZNAME_MAX,
+#define	_SC_TZNAME_MAX			_SC_TZNAME_MAX
+    _SC_JOB_CONTROL,
+#define	_SC_JOB_CONTROL			_SC_JOB_CONTROL
+    _SC_SAVED_IDS,
+#define	_SC_SAVED_IDS			_SC_SAVED_IDS
+    _SC_REALTIME_SIGNALS,
+#define	_SC_REALTIME_SIGNALS		_SC_REALTIME_SIGNALS
+    _SC_PRIORITY_SCHEDULING,
+#define	_SC_PRIORITY_SCHEDULING		_SC_PRIORITY_SCHEDULING
+    _SC_TIMERS,
+#define	_SC_TIMERS			_SC_TIMERS
+    _SC_ASYNCHRONOUS_IO,
+#define	_SC_ASYNCHRONOUS_IO		_SC_ASYNCHRONOUS_IO
+    _SC_PRIORITIZED_IO,
+#define	_SC_PRIORITIZED_IO		_SC_PRIORITIZED_IO
+    _SC_SYNCHRONIZED_IO,
+#define	_SC_SYNCHRONIZED_IO		_SC_SYNCHRONIZED_IO
+    _SC_FSYNC,
+#define	_SC_FSYNC			_SC_FSYNC
+    _SC_MAPPED_FILES,
+#define	_SC_MAPPED_FILES		_SC_MAPPED_FILES
+    _SC_MEMLOCK,
+#define	_SC_MEMLOCK			_SC_MEMLOCK
+    _SC_MEMLOCK_RANGE,
+#define	_SC_MEMLOCK_RANGE		_SC_MEMLOCK_RANGE
+    _SC_MEMORY_PROTECTION,
+#define	_SC_MEMORY_PROTECTION		_SC_MEMORY_PROTECTION
+    _SC_MESSAGE_PASSING,
+#define	_SC_MESSAGE_PASSING		_SC_MESSAGE_PASSING
+    _SC_SEMAPHORES,
+#define	_SC_SEMAPHORES			_SC_SEMAPHORES
+    _SC_SHARED_MEMORY_OBJECTS,
+#define	_SC_SHARED_MEMORY_OBJECTS	_SC_SHARED_MEMORY_OBJECTS
+    _SC_AIO_LISTIO_MAX,
+#define	_SC_AIO_LIST_MAX		_SC_AIO_LIST_MAX
+    _SC_AIO_MAX,
+#define	_SC_AIO_MAX			_SC_AIO_MAX
+    _SC_AIO_PRIO_DELTA_MAX,
+#define	_SC_AIO_PRIO_DELTA_MAX		_SC_AIO_PRIO_DELTA_MAX
+    _SC_DELAYTIMER_MAX,
+#define	_SC_DELAYTIMER_MAX		_SC_DELAYTIMER_MAX
+    _SC_MQ_OPEN_MAX,
+#define	_SC_MQ_OPEN_MAX			_SC_MQ_OPEN_MAX
+    _SC_MQ_PRIO_MAX,
+#define	_SC_MQ_PRIO_MAX			_SC_MQ_PRIO_MAX
+    _SC_VERSION,
+#define	_SC_VERSION			_SC_VERSION
+    _SC_PAGESIZE,
+#define	_SC_PAGESIZE			_SC_PAGESIZE
+#define	_SC_PAGE_SIZE			_SC_PAGESIZE
+    _SC_RTSIG_MAX,
+#define	_SC_RTSIG_MAX			_SC_RTSIG_MAX
+    _SC_SEM_NSEMS_MAX,
+#define	_SC_SEM_NSEMS_MAX		_SC_SEM_NSEMS_MAX
+    _SC_SEM_VALUE_MAX,
+#define	_SC_SEM_VALUE_MAX		_SC_SEM_VALUE_MAX
+    _SC_SIGQUEUE_MAX,
+#define	_SC_SIGQUEUE_MAX		_SC_SIGQUEUE_MAX
+    _SC_TIMER_MAX,
+#define	_SC_TIMER_MAX			_SC_TIMER_MAX
+
+    /* Values for the argument to `sysconf'
+       corresponding to _POSIX2_* symbols.  */
+    _SC_BC_BASE_MAX,
+#define	_SC_BC_BASE_MAX			_SC_BC_BASE_MAX
+    _SC_BC_DIM_MAX,
+#define	_SC_BC_DIM_MAX			_SC_BC_DIM_MAX
+    _SC_BC_SCALE_MAX,
+#define	_SC_BC_SCALE_MAX		_SC_BC_SCALE_MAX
+    _SC_BC_STRING_MAX,
+#define	_SC_BC_STRING_MAX		_SC_BC_STRING_MAX
+    _SC_COLL_WEIGHTS_MAX,
+#define	_SC_COLL_WEIGHTS_MAX		_SC_COLL_WEIGHTS_MAX
+    _SC_EQUIV_CLASS_MAX,
+#define	_SC_EQUIV_CLASS_MAX		_SC_EQUIV_CLASS_MAX
+    _SC_EXPR_NEST_MAX,
+#define	_SC_EXPR_NEST_MAX		_SC_EXPR_NEST_MAX
+    _SC_LINE_MAX,
+#define	_SC_LINE_MAX			_SC_LINE_MAX
+    _SC_RE_DUP_MAX,
+#define	_SC_RE_DUP_MAX			_SC_RE_DUP_MAX
+    _SC_CHARCLASS_NAME_MAX,
+#define	_SC_CHARCLASS_NAME_MAX		_SC_CHARCLASS_NAME_MAX
+
+    _SC_2_VERSION,
+#define	_SC_2_VERSION			_SC_2_VERSION
+    _SC_2_C_BIND,
+#define	_SC_2_C_BIND			_SC_2_C_BIND
+    _SC_2_C_DEV,
+#define	_SC_2_C_DEV			_SC_2_C_DEV
+    _SC_2_FORT_DEV,
+#define	_SC_2_FORT_DEV			_SC_2_FORT_DEV
+    _SC_2_FORT_RUN,
+#define	_SC_2_FORT_RUN			_SC_2_FORT_RUN
+    _SC_2_SW_DEV,
+#define	_SC_2_SW_DEV			_SC_2_SW_DEV
+    _SC_2_LOCALEDEF,
+#define	_SC_2_LOCALEDEF			_SC_2_LOCALEDEF
+
+    _SC_PII,
+#define	_SC_PII				_SC_PII
+    _SC_PII_XTI,
+#define	_SC_PII_XTI			_SC_PII_XTI
+    _SC_PII_SOCKET,
+#define	_SC_PII_SOCKET			_SC_PII_SOCKET
+    _SC_PII_INTERNET,
+#define	_SC_PII_INTERNET		_SC_PII_INTERNET
+    _SC_PII_OSI,
+#define	_SC_PII_OSI			_SC_PII_OSI
+    _SC_POLL,
+#define	_SC_POLL			_SC_POLL
+    _SC_SELECT,
+#define	_SC_SELECT			_SC_SELECT
+    _SC_UIO_MAXIOV,
+#define	_SC_UIO_MAXIOV			_SC_UIO_MAXIOV
+    _SC_PII_INTERNET_STREAM,
+#define	_SC_PII_INTERNET_STREAM		_SC_PII_INTERNET_STREAM
+    _SC_PII_INTERNET_DGRAM,
+#define	_SC_PII_INTERNET_DGRAM		_SC_PII_INTERNET_DGRAM
+    _SC_PII_OSI_COTS,
+#define	_SC_PII_OSI_COTS		_SC_PII_OSI_COTS
+    _SC_PII_OSI_CLTS,
+#define	_SC_PII_OSI_CLTS		_SC_PII_OSI_CLTS
+    _SC_PII_OSI_M,
+#define	_SC_PII_OSI_M			_SC_PII_OSI_M
+    _SC_T_IOV_MAX,
+#define	_SC_T_IOV_MAX			_SC_T_IOV_MAX
+
+    /* Values according to POSIX 1003.1c (POSIX threads).  */
+    _SC_THREADS,
+#define	_SC_THREADS			_SC_THREADS
+    _SC_THREAD_SAFE_FUNCTIONS,
+#define _SC_THREAD_SAFE_FUNCTIONS	_SC_THREAD_SAFE_FUNCTIONS
+    _SC_GETGR_R_SIZE_MAX,
+#define	_SC_GETGR_R_SIZE_MAX		_SC_GETGR_R_SIZE_MAX
+    _SC_GETPW_R_SIZE_MAX,
+#define	_SC_GETPW_R_SIZE_MAX		_SC_GETPW_R_SIZE_MAX
+    _SC_LOGIN_NAME_MAX,
+#define	_SC_LOGIN_NAME_MAX		_SC_LOGIN_NAME_MAX
+    _SC_TTY_NAME_MAX,
+#define	_SC_TTY_NAME_MAX		_SC_TTY_NAME_MAX
+    _SC_THREAD_DESTRUCTOR_ITERATIONS,
+#define	_SC_THREAD_DESTRUCTOR_ITERATIONS _SC_THREAD_DESTRUCTOR_ITERATIONS
+    _SC_THREAD_KEYS_MAX,
+#define	_SC_THREAD_KEYS_MAX		_SC_THREAD_KEYS_MAX
+    _SC_THREAD_STACK_MIN,
+#define	_SC_THREAD_STACK_MIN		_SC_THREAD_STACK_MIN
+    _SC_THREAD_THREADS_MAX,
+#define	_SC_THREAD_THREADS_MAX		_SC_THREAD_THREADS_MAX
+    _SC_THREAD_ATTR_STACKADDR,
+#define	_SC_THREAD_ATTR_STACKADDR	_SC_THREAD_ATTR_STACKADDR
+    _SC_THREAD_ATTR_STACKSIZE,
+#define	_SC_THREAD_ATTR_STACKSIZE	_SC_THREAD_ATTR_STACKSIZE
+    _SC_THREAD_PRIORITY_SCHEDULING,
+#define	_SC_THREAD_PRIORITY_SCHEDULING	_SC_THREAD_PRIORITY_SCHEDULING
+    _SC_THREAD_PRIO_INHERIT,
+#define	_SC_THREAD_PRIO_INHERIT		_SC_THREAD_PRIO_INHERIT
+    _SC_THREAD_PRIO_PROTECT,
+#define	_SC_THREAD_PRIO_PROTECT		_SC_THREAD_PRIO_PROTECT
+    _SC_THREAD_PROCESS_SHARED,
+#define	_SC_THREAD_PROCESS_SHARED	_SC_THREAD_PROCESS_SHARED
+
+    _SC_NPROCESSORS_CONF,
+#define _SC_NPROCESSORS_CONF		_SC_NPROCESSORS_CONF
+    _SC_NPROCESSORS_ONLN,
+#define _SC_NPROCESSORS_ONLN		_SC_NPROCESSORS_ONLN
+    _SC_PHYS_PAGES,
+#define _SC_PHYS_PAGES			_SC_PHYS_PAGES
+    _SC_AVPHYS_PAGES,
+#define _SC_AVPHYS_PAGES		_SC_AVPHYS_PAGES
+    _SC_ATEXIT_MAX,
+#define _SC_ATEXIT_MAX			_SC_ATEXIT_MAX
+    _SC_PASS_MAX,
+#define _SC_PASS_MAX			_SC_PASS_MAX
+
+    _SC_XOPEN_VERSION,
+#define _SC_XOPEN_VERSION		_SC_XOPEN_VERSION
+    _SC_XOPEN_XCU_VERSION,
+#define _SC_XOPEN_XCU_VERSION		_SC_XOPEN_XCU_VERSION
+    _SC_XOPEN_UNIX,
+#define _SC_XOPEN_UNIX			_SC_XOPEN_UNIX
+    _SC_XOPEN_CRYPT,
+#define _SC_XOPEN_CRYPT			_SC_XOPEN_CRYPT
+    _SC_XOPEN_ENH_I18N,
+#define _SC_XOPEN_ENH_I18N		_SC_XOPEN_ENH_I18N
+    _SC_XOPEN_SHM,
+#define _SC_XOPEN_SHM			_SC_XOPEN_SHM
+
+    _SC_2_CHAR_TERM,
+#define _SC_2_CHAR_TERM			_SC_2_CHAR_TERM
+    _SC_2_C_VERSION,
+#define _SC_2_C_VERSION			_SC_2_C_VERSION
+    _SC_2_UPE,
+#define _SC_2_UPE			_SC_2_UPE
+
+    _SC_XOPEN_XPG2,
+#define _SC_XOPEN_XPG2			_SC_XOPEN_XPG2
+    _SC_XOPEN_XPG3,
+#define _SC_XOPEN_XPG3			_SC_XOPEN_XPG3
+    _SC_XOPEN_XPG4,
+#define _SC_XOPEN_XPG4			_SC_XOPEN_XPG4
+
+    _SC_CHAR_BIT,
+#define	_SC_CHAR_BIT			_SC_CHAR_BIT
+    _SC_CHAR_MAX,
+#define	_SC_CHAR_MAX			_SC_CHAR_MAX
+    _SC_CHAR_MIN,
+#define	_SC_CHAR_MIN			_SC_CHAR_MIN
+    _SC_INT_MAX,
+#define	_SC_INT_MAX			_SC_INT_MAX
+    _SC_INT_MIN,
+#define	_SC_INT_MIN			_SC_INT_MIN
+    _SC_LONG_BIT,
+#define	_SC_LONG_BIT			_SC_LONG_BIT
+    _SC_WORD_BIT,
+#define	_SC_WORD_BIT			_SC_WORD_BIT
+    _SC_MB_LEN_MAX,
+#define	_SC_MB_LEN_MAX			_SC_MB_LEN_MAX
+    _SC_NZERO,
+#define	_SC_NZERO			_SC_NZERO
+    _SC_SSIZE_MAX,
+#define	_SC_SSIZE_MAX			_SC_SSIZE_MAX
+    _SC_SCHAR_MAX,
+#define	_SC_SCHAR_MAX			_SC_SCHAR_MAX
+    _SC_SCHAR_MIN,
+#define	_SC_SCHAR_MIN			_SC_SCHAR_MIN
+    _SC_SHRT_MAX,
+#define	_SC_SHRT_MAX			_SC_SHRT_MAX
+    _SC_SHRT_MIN,
+#define	_SC_SHRT_MIN			_SC_SHRT_MIN
+    _SC_UCHAR_MAX,
+#define	_SC_UCHAR_MAX			_SC_UCHAR_MAX
+    _SC_UINT_MAX,
+#define	_SC_UINT_MAX			_SC_UINT_MAX
+    _SC_ULONG_MAX,
+#define	_SC_ULONG_MAX			_SC_ULONG_MAX
+    _SC_USHRT_MAX,
+#define	_SC_USHRT_MAX			_SC_USHRT_MAX
+
+    _SC_NL_ARGMAX,
+#define	_SC_NL_ARGMAX			_SC_NL_ARGMAX
+    _SC_NL_LANGMAX,
+#define	_SC_NL_LANGMAX			_SC_NL_LANGMAX
+    _SC_NL_MSGMAX,
+#define	_SC_NL_MSGMAX			_SC_NL_MSGMAX
+    _SC_NL_NMAX,
+#define	_SC_NL_NMAX			_SC_NL_NMAX
+    _SC_NL_SETMAX,
+#define	_SC_NL_SETMAX			_SC_NL_SETMAX
+    _SC_NL_TEXTMAX
+#define	_SC_NL_TEXTMAX			_SC_NL_TEXTMAX
+  };
+
+#ifdef __USE_POSIX2
+/* Values for the NAME argument to `confstr'.  */
+enum
+  {
+    _CS_PATH			/* The default search path.  */
+  };
+#endif
diff --git a/bits/ioctl-types.h b/bits/ioctl-types.h
new file mode 100644
index 0000000000..1d5c8a002f
--- /dev/null
+++ b/bits/ioctl-types.h
@@ -0,0 +1,121 @@
+/* Structure types for pre-termios terminal ioctls.  Generic Unix version.
+   Copyright (C) 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/*
+ * Never include this file directly; use <sys/ioctl.h> instead.
+ */
+
+#ifndef _BITS_IOCTL_TYPES_H
+#define _BITS_IOCTL_TYPES_H 1
+
+
+#if	defined(TIOCGETC) || defined(TIOCSETC)
+/* Type of ARG for TIOCGETC and TIOCSETC requests.  */
+struct tchars
+{
+  char t_intrc;			/* Interrupt character.  */
+  char t_quitc;			/* Quit character.  */
+  char t_startc;		/* Start-output character.  */
+  char t_stopc;			/* Stop-output character.  */
+  char t_eofc;			/* End-of-file character.  */
+  char t_brkc;			/* Input delimiter character.  */
+};
+
+#define	_IOT_tchars	/* Hurd ioctl type field.  */ \
+  _IOT (_IOTS (char), 6, 0, 0, 0, 0)
+#endif
+
+#if	defined(TIOCGLTC) || defined(TIOCSLTC)
+/* Type of ARG for TIOCGLTC and TIOCSLTC requests.  */
+struct ltchars
+{
+  char t_suspc;			/* Suspend character.  */
+  char t_dsuspc;		/* Delayed suspend character.  */
+  char t_rprntc;		/* Reprint-line character.  */
+  char t_flushc;		/* Flush-output character.  */
+  char t_werasc;		/* Word-erase character.  */
+  char t_lnextc;		/* Literal-next character.  */
+};
+
+#define	_IOT_ltchars	/* Hurd ioctl type field.  */ \
+  _IOT (_IOTS (char), 6, 0, 0, 0, 0)
+#endif
+
+/* Type of ARG for TIOCGETP and TIOCSETP requests (and gtty and stty).  */
+struct sgttyb
+{
+  char sg_ispeed;		/* Input speed.  */
+  char sg_ospeed;		/* Output speed.  */
+  char sg_erase;		/* Erase character.  */
+  char sg_kill;			/* Kill character.  */
+  short int sg_flags;		/* Mode flags.  */
+};
+
+#define	_IOT_sgttyb	/* Hurd ioctl type field.  */ \
+  _IOT (_IOTS (char), 6, _IOTS (short int), 1, 0, 0)
+
+#if	defined(TIOCGWINSZ) || defined(TIOCSWINSZ)
+/* Type of ARG for TIOCGWINSZ and TIOCSWINSZ requests.  */
+struct winsize
+{
+  unsigned short int ws_row;	/* Rows, in characters.  */
+  unsigned short int ws_col;	/* Columns, in characters.  */
+
+  /* These are not actually used.  */
+  unsigned short int ws_xpixel;	/* Horizontal pixels.  */
+  unsigned short int ws_ypixel;	/* Vertical pixels.  */
+};
+
+#define	_IOT_winsize	/* Hurd ioctl type field.  */ \
+  _IOT (_IOTS (unsigned short int), 4, 0, 0, 0, 0)
+#endif
+
+#if	defined (TIOCGSIZE) || defined (TIOCSSIZE)
+/* The BSD-style ioctl constructor macros use `sizeof', which can't be used
+   in a preprocessor conditional.  Since the commands are always unique
+   regardless of the size bits, we can safely define away `sizeof' for the
+   purpose of the conditional.  */
+#  define sizeof(type) 0
+#  if defined (TIOCGWINSZ) && TIOCGSIZE == TIOCGWINSZ
+/* Many systems that have TIOCGWINSZ define TIOCGSIZE for source
+   compatibility with Sun; they define `struct ttysize' to have identical
+   layout as `struct winsize' and #define TIOCGSIZE to be TIOCGWINSZ
+   (likewise TIOCSSIZE and TIOCSWINSZ).  */
+struct ttysize
+{
+  unsigned short int ts_lines;
+  unsigned short int ts_cols;
+  unsigned short int ts_xxx;
+  unsigned short int ts_yyy;
+};
+#define	_IOT_ttysize	_IOT_winsize
+#  else
+/* Suns use a different layout for `struct ttysize', and TIOCGSIZE and
+   TIOCGWINSZ are separate commands that do the same thing with different
+   structures (likewise TIOCSSIZE and TIOCSWINSZ).  */
+struct ttysize
+{
+  int ts_lines, ts_cols;	/* Lines and columns, in characters.  */
+};
+#  endif
+#  undef sizeof			/* See above.  */
+#endif
+
+
+#endif /* bits/ioctl-types.h */
diff --git a/bits/mathdef.h b/bits/mathdef.h
new file mode 100644
index 0000000000..93b60bd25f
--- /dev/null
+++ b/bits/mathdef.h
@@ -0,0 +1,40 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+
+/* Normally, there is no long double type and the `float' and `double'
+   expressions are evaluated as `double'.  */
+typedef double float_t;		/* `float' expressions are evaluated as
+				   `double'.  */
+typedef double double_t;	/* `double' expressions are evaluated as
+				   `double'.  */
+
+/* Signal that both types are `double'.  */
+#define FLT_EVAL_METHOD	1
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VAL
+
+
+/* The values returned by `ilogb' for 0 and NaN respectively.  */
+#define FP_ILOGB0	0x80000001
+#define FP_ILOGBNAN	0x7fffffff
diff --git a/bits/resource.h b/bits/resource.h
new file mode 100644
index 0000000000..2c35c12a47
--- /dev/null
+++ b/bits/resource.h
@@ -0,0 +1,146 @@
+/* Bit values & structures for resource limits.  4.4 BSD/generic GNU version.
+   Copyright (C) 1994, 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* These are the values for 4.4 BSD and GNU.  Earlier BSD systems have a
+   subset of these kinds of resource limit.  In systems where `getrlimit'
+   and `setrlimit' are not system calls, these are the values used by the C
+   library to emulate them.  */
+
+/* Kinds of resource limit.  */
+enum __rlimit_resource
+  {
+    /* Per-process CPU limit, in seconds.  */
+    RLIMIT_CPU,
+#define	RLIMIT_CPU	RLIMIT_CPU
+    /* Largest file that can be created, in bytes.  */
+    RLIMIT_FSIZE,
+#define	RLIMIT_FSIZE	RLIMIT_FSIZE
+    /* Maximum size of data segment, in bytes.  */
+    RLIMIT_DATA,
+#define	RLIMIT_DATA	RLIMIT_DATA
+    /* Maximum size of stack segment, in bytes.  */
+    RLIMIT_STACK,
+#define	RLIMIT_STACK	RLIMIT_STACK
+    /* Largest core file that can be created, in bytes.  */
+    RLIMIT_CORE,
+#define	RLIMIT_CORE	RLIMIT_CORE
+    /* Largest resident set size, in bytes.
+       This affects swapping; processes that are exceeding their
+       resident set size will be more likely to have physical memory
+       taken from them.  */
+    RLIMIT_RSS,
+#define	RLIMIT_RSS	RLIMIT_RSS
+    /* Locked-in-memory address space.  */
+    RLIMIT_MEMLOCK,
+#define	RLIMIT_MEMLOCK	RLIMIT_MEMLOCK
+    /* Number of processes.  */
+    RLIMIT_NPROC,
+#define	RLIMIT_NPROC	RLIMIT_NPROC
+    /* Number of open files.  */
+    RLIMIT_OFILE,
+    RLIMIT_NOFILE = RLIMIT_OFILE, /* Another name for the same thing.  */
+#define	RLIMIT_OFILE	RLIMIT_OFILE
+#define	RLIMIT_NOFILE	RLIMIT_NOFILE
+
+    RLIMIT_NLIMITS,		/* Number of limit flavors.  */
+    RLIM_NLIMITS = RLIMIT_NLIMITS, /* Traditional name for same.  */
+
+    RLIM_INFINITY = 0x7fffffff /* Value to indicate that there is no limit.  */
+#define RLIM_INFINITY RLIM_INFINITY
+  };
+
+struct rlimit
+  {
+    /* The current (soft) limit.  */
+    int rlim_cur;
+    /* The hard limit.  */
+    int rlim_max;
+  };
+
+/* Whose usage statistics do you want?  */
+enum __rusage_who
+/* The macro definitions are necessary because some programs want
+   to test for operating system features with #ifdef RUSAGE_SELF.
+   In ISO C the reflexive definition is a no-op.  */
+  {
+    /* The calling process.  */
+    RUSAGE_SELF = 0,
+#define RUSAGE_SELF     RUSAGE_SELF
+    /* All of its terminated child processes.  */
+    RUSAGE_CHILDREN = -1
+#define RUSAGE_CHILDREN RUSAGE_CHILDREN
+  };
+
+#include <sys/time.h>           /* For `struct timeval'.  */
+
+/* Structure which says how much of each resource has been used.  */
+struct rusage
+  {
+    /* Total amount of user time used.  */
+    struct timeval ru_utime;
+    /* Total amount of system time used.  */
+    struct timeval ru_stime;
+    /* Maximum resident set size (in kilobytes).  */
+    long int ru_maxrss;
+    /* Amount of sharing of text segment memory
+       with other processes (kilobyte-seconds).  */
+    long int ru_ixrss;
+    /* Amount of data segment memory used (kilobyte-seconds).  */
+    long int ru_idrss;
+    /* Amount of stack memory used (kilobyte-seconds).  */
+    long int ru_isrss;
+    /* Number of soft page faults (i.e. those serviced by reclaiming
+       a page from the list of pages awaiting reallocation.  */
+    long int ru_minflt;
+    /* Number of hard page faults (i.e. those that required I/O).  */
+    long int ru_majflt;
+    /* Number of times a process was swapped out of physical memory.  */
+    long int ru_nswap;
+    /* Number of input operations via the file system.  Note: This
+       and `ru_oublock' do not include operations with the cache.  */
+    long int ru_inblock;
+    /* Number of output operations via the file system.  */
+    long int ru_oublock;
+    /* Number of IPC messages sent.  */
+    long int ru_msgsnd;
+    /* Number of IPC messages received.  */
+    long int ru_msgrcv;
+    /* Number of signals delivered.  */
+    long int ru_nsignals;
+    /* Number of voluntary context switches, i.e. because the process
+       gave up the process before it had to (usually to wait for some
+       resource to be available).  */
+    long int ru_nvcsw;
+    /* Number of involuntary context switches, i.e. a higher priority process
+       became runnable or the current process used up its time slice.  */
+    long int ru_nivcsw;
+  };
+
+/* Priority limits.  */
+#define PRIO_MIN        -20     /* Minimum priority a process can have.  */
+#define PRIO_MAX        20      /* Maximum priority a process can have.  */
+
+/* The type of the WHICH argument to `getpriority' and `setpriority',
+   indicating what flavor of entity the WHO argument specifies.  */
+enum __priority_which
+  {
+    PRIO_PROCESS = 0,           /* WHO is a process ID.  */
+    PRIO_PGRP = 1,              /* WHO is a process group ID.  */
+    PRIO_USER = 2               /* WHO is a user ID.  */
+  };
diff --git a/bits/sched.h b/bits/sched.h
new file mode 100644
index 0000000000..bb5da5676f
--- /dev/null
+++ b/bits/sched.h
@@ -0,0 +1,35 @@
+/* Definitions of constants and data structure for POSIX 1003.1b-1993
+   scheduling interface.
+   Copyright (C) 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc., 59 Temple Place
+   Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef _SCHED_H
+#error "Never use <bits/sched.h> directly; include <sched.h> instead."
+#endif
+
+
+/* Scheduling algorithms.  */
+#define SCHED_OTHER	0
+#define SCHED_FIFO	1
+#define SCHED_RR	2
+
+/* Data structure to describe a process' schedulability.  */
+struct sched_param
+{
+  int sched_priority;
+};
diff --git a/bits/select.h b/bits/select.h
new file mode 100644
index 0000000000..613919577c
--- /dev/null
+++ b/bits/select.h
@@ -0,0 +1,29 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SELECT_H
+#error "Never use <bits/select.h> directly; include <sys/select.h> instead."
+#endif
+
+
+/* This line MUST be split!  Otherwise m4 will not change it.  */
+#define __FD_ZERO(set)  \
+  ((void) memset ((__ptr_t) (set), 0, sizeof (fd_set)))
+#define __FD_SET(d, set)	((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
+#define __FD_CLR(d, set)	((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+#define __FD_ISSET(d, set)	((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
diff --git a/bits/sigaction.h b/bits/sigaction.h
new file mode 100644
index 0000000000..1676b1ce8e
--- /dev/null
+++ b/bits/sigaction.h
@@ -0,0 +1,50 @@
+/* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* These definitions match those used by the 4.4 BSD kernel.
+   If the operating system has a `sigaction' system call that correctly
+   implements the POSIX.1 behavior, there should be a system-dependent
+   version of this file that defines `struct sigaction' and the `SA_*'
+   constants appropriately.  */
+
+/* Structure describing the action to be taken when a signal arrives.  */
+struct sigaction
+  {
+    /* Signal handler.  */
+    __sighandler_t sa_handler;
+
+    /* Additional set of signals to be blocked.  */
+    __sigset_t sa_mask;
+
+    /* Special flags.  */
+    int sa_flags;
+  };
+
+/* Bits in `sa_flags'.  */
+#ifdef	__USE_BSD
+#define	SA_ONSTACK	0x1	/* Take signal on signal stack.  */
+#define	SA_RESTART	0x2	/* Don't restart syscall on signal return.  */
+#define	SA_DISABLE	0x4	/* Disable alternate signal stack.  */
+#endif
+#define	SA_NOCLDSTOP	0x8	/* Don't send SIGCHLD when children stop.  */
+
+
+/* Values for the HOW argument to `sigprocmask'.  */
+#define	SIG_BLOCK	1	/* Block signals.  */
+#define	SIG_UNBLOCK	2	/* Unblock signals.  */
+#define	SIG_SETMASK	3	/* Set the set of blocked signals.  */
diff --git a/bits/sigset.h b/bits/sigset.h
new file mode 100644
index 0000000000..9fad4538d7
--- /dev/null
+++ b/bits/sigset.h
@@ -0,0 +1,81 @@
+/* __sig_atomic_t, __sigset_t, and related definitions.  Generic/BSD version.
+   Copyright (C) 1991, 1992, 1994, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef	_SIGSET_H_types
+#define	_SIGSET_H_types	1
+
+typedef int __sig_atomic_t;
+
+/* A `sigset_t' has a bit for each signal.  */
+typedef unsigned long int __sigset_t;
+
+#endif
+
+
+/* We only want to define these functions if <signal.h> was actually
+   included; otherwise we were included just to define the types.  Since we
+   are namespace-clean, it wouldn't hurt to define extra macros.  But
+   trouble can be caused by functions being defined (e.g., any global
+   register vars declared later will cause compilation errors).  */
+
+#if !defined (_SIGSET_H_fns) && defined (_SIGNAL_H)
+#define _SIGSET_H_fns 1
+
+#ifndef _EXTERN_INLINE
+#define _EXTERN_INLINE extern __inline
+#endif
+
+/* Return a mask that includes SIG only.  The cast to `sigset_t' avoids
+   overflow if `sigset_t' is wider than `int'.  */
+#define	__sigmask(sig)	(((__sigset_t) 1) << ((sig) - 1))
+
+#define	__sigemptyset(set)	((*(set) = (__sigset_t) 0), 0)
+#define	__sigfillset(set)	((*(set) = ~(__sigset_t) 0), 0)
+
+#ifdef _GNU_SOURCE
+# define __sigisemptyset(set)	(*(set) == (__sigset_t) 0)
+# define __sigandset(dest, left, right) \
+				((*(dest) = (*(left) & *(right))), 0)
+# define __sigorset(dest, left, right) \
+				((*(dest) = (*(left) | *(right))), 0)
+#endif
+
+/* These functions needn't check for a bogus signal number -- error
+   checking is done in the non __ versions.  */
+
+extern int __sigismember (__const __sigset_t *, int);
+extern int __sigaddset (__sigset_t *, int);
+extern int __sigdelset (__sigset_t *, int);
+
+#define __SIGSETFN(NAME, BODY, CONST)					      \
+  _EXTERN_INLINE int							      \
+  NAME (CONST __sigset_t *__set, int __sig)				      \
+  {									      \
+    __sigset_t __mask = __sigmask (__sig);				      \
+    return BODY;							      \
+  }
+
+__SIGSETFN (__sigismember, (*__set & __mask) ? 1 : 0, __const)
+__SIGSETFN (__sigaddset, ((*__set |= __mask), 0), )
+__SIGSETFN (__sigdelset, ((*__set &= ~__mask), 0), )
+
+#undef __SIGSETFN
+
+
+#endif /* ! _SIGSET_H_fns.  */
diff --git a/bits/sockaddr.h b/bits/sockaddr.h
new file mode 100644
index 0000000000..73a0e26ec4
--- /dev/null
+++ b/bits/sockaddr.h
@@ -0,0 +1,41 @@
+/* Definition of `struct sockaddr_*' common members.  Generic/4.2 BSD version.
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/*
+ * Never include this file directly; use <sys/socket.h> instead.
+ */
+
+#ifndef _BITS_SOCKADDR_H
+#define _BITS_SOCKADDR_H	1
+
+
+/* POSIX.1g specifies this type name for the `sa_family' member.  */
+typedef unsigned short int sa_family_t;
+
+/* This macro is used to declare the initial common members
+   of the data types used for socket addresses, `struct sockaddr',
+   `struct sockaddr_in', `struct sockaddr_un', etc.  */
+
+#define	__SOCKADDR_COMMON(sa_prefix) \
+  sa_family_t sa_prefix##family
+
+#define __SOCKADDR_COMMON_SIZE	(sizeof (unsigned short int))
+
+
+#endif	/* bits/sockaddr.h */
diff --git a/bits/socket.h b/bits/socket.h
new file mode 100644
index 0000000000..d12d96cc14
--- /dev/null
+++ b/bits/socket.h
@@ -0,0 +1,200 @@
+/* System-specific socket constants and types.  Generic/4.3 BSD version.
+   Copyright (C) 1991, 92, 94, 95, 96, 97 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SOCKET_H
+#error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
+#endif
+
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+#define	__need_size_t
+#include <stddef.h>
+
+
+/* Types of sockets.  */
+enum __socket_type
+{
+  SOCK_STREAM = 1,		/* Sequenced, reliable, connection-based
+				   byte streams.  */
+#define SOCK_STREAM SOCK_STREAM
+  SOCK_DGRAM = 2,		/* Connectionless, unreliable datagrams
+				   of fixed maximum length.  */
+#define SOCK_DGRAM SOCK_DGRAM
+  SOCK_RAW = 3,			/* Raw protocol interface.  */
+#define SOCK_RAW SOCK_RAW
+  SOCK_RDM = 4,			/* Reliably-delivered messages.  */
+#define SOCK_RDM SOCK_RDM
+  SOCK_SEQPACKET = 5,		/* Sequenced, reliable, connection-based,
+				   datagrams of fixed maximum length.  */
+#define SOCK_SEQPACKET SOCK_SEQPACKET
+};
+
+/* Protocol families.  */
+#define	PF_UNSPEC	0	/* Unspecified.  */
+#define	PF_LOCAL	1	/* Local to host (pipes and file-domain).  */
+#define	PF_UNIX		PF_LOCAL /* Old BSD name for PF_LOCAL.  */
+#define	PF_FILE		PF_LOCAL /* POSIX name for PF_LOCAL.  */
+#define	PF_INET		2	/* IP protocol family.  */
+#define	PF_IMPLINK	3	/* ARPAnet IMP protocol.  */
+#define	PF_PUP		4	/* PUP protocols.  */
+#define	PF_CHAOS	5	/* MIT Chaos protocols.  */
+#define	PF_NS		6	/* Xerox NS protocols.  */
+#define	PF_ISO		7	/* ISO protocols.  */
+#define	PF_OSI		PF_ISO
+#define	PF_ECMA		8	/* ECMA protocols.  */
+#define	PF_DATAKIT	9	/* AT&T Datakit protocols.  */
+#define	PF_CCITT	10	/* CCITT protocols (X.25 et al).  */
+#define	PF_SNA		11	/* IBM SNA protocol.  */
+#define	PF_DECnet	12	/* DECnet protocols.  */
+#define	PF_DLI		13	/* Direct data link interface.  */
+#define	PF_LAT		14	/* DEC Local Area Transport protocol.  */
+#define	PF_HYLINK	15	/* NSC Hyperchannel protocol.  */
+#define	PF_APPLETALK	16	/* Don't use this.  */
+#define	PF_ROUTE	17	/* Internal Routing Protocol.  */
+#define	PF_LINK		18	/* Link layer interface.  */
+#define	PF_XTP		19	/* eXpress Transfer Protocol (no AF).  */
+#define	PF_COIP		20	/* Connection-oriented IP, aka ST II.  */
+#define	PF_CNT		21	/* Computer Network Technology.  */
+#define PF_RTIP		22	/* Help Identify RTIP packets.  **/
+#define	PF_IPX		23	/* Novell Internet Protocol.  */
+#define	PF_SIP		24	/* Simple Internet Protocol.  */
+#define PF_PIP		25	/* Help Identify PIP packets.  */
+#define PF_INET6	26	/* IP version 6.  */
+#define	PF_MAX		27
+
+/* Address families.  */
+#define	AF_UNSPEC	PF_UNSPEC
+#define	AF_LOCAL	PF_LOCAL
+#define	AF_UNIX		PF_UNIX
+#define	AF_FILE		PF_FILE
+#define	AF_INET		PF_INET
+#define	AF_IMPLINK	PF_IMPLINK
+#define	AF_PUP		PF_PUP
+#define	AF_CHAOS	PF_CHAOS
+#define	AF_NS		PF_NS
+#define	AF_ISO		PF_ISO
+#define	AF_OSI		PF_OSI
+#define	AF_ECMA		PF_ECMA
+#define	AF_DATAKIT	PF_DATAKIT
+#define	AF_CCITT	PF_CCITT
+#define	AF_SNA		PF_SNA
+#define	AF_DECnet	PF_DECnet
+#define	AF_DLI		PF_DLI
+#define	AF_LAT		PF_LAT
+#define	AF_HYLINK	PF_HYLINK
+#define	AF_APPLETALK	PF_APPLETALK
+#define	AF_ROUTE	PF_ROUTE
+#define	AF_LINK		PF_LINK
+#define	pseudo_AF_XTP	PF_XTP
+#define	AF_COIP		PF_COIP
+#define	AF_CNT		PF_CNT
+#define pseudo_AF_RTIP	PF_RTIP
+#define	AF_IPX		PF_IPX
+#define	AF_SIP		PF_SIP
+#define pseudo_AF_PIP	PF_PIP
+#define AF_INET6	PF_INET6
+#define	AF_MAX		PF_MAX
+
+
+/* Get the definition of the macro to define the common sockaddr members.  */
+#include <bits/sockaddr.h>
+
+/* Structure describing a generic socket address.  */
+struct sockaddr
+  {
+    __SOCKADDR_COMMON (sa_);	/* Common data: address family and length.  */
+    char sa_data[14];		/* Address data.  */
+  };
+
+
+/* Bits in the FLAGS argument to `send', `recv', et al.  */
+enum
+  {
+    MSG_OOB		= 0x01,	/* Process out-of-band data.  */
+    MSG_PEEK		= 0x02,	/* Peek at incoming messages.  */
+    MSG_DONTROUTE	= 0x04,	/* Don't use local routing.  */
+    MSG_EOR		= 0x08,	/* Data completes record.  */
+    MSG_TRUNC		= 0x10,	/* Data discarded before delivery.  */
+    MSG_CTRUNC		= 0x20,	/* Control data lost before delivery.  */
+    MSG_WAITALL		= 0x40,	/* Wait for full request or error.  */
+    MSG_DONTWAIT	= 0x80,	/* This message should be nonblocking.  */
+  };
+
+
+/* Structure describing messages sent by
+   `sendmsg' and received by `recvmsg'.  */
+struct msghdr
+  {
+    __ptr_t msg_name;		/* Address to send to/receive from.  */
+    size_t msg_namelen;		/* Length of address data.  */
+
+    struct iovec *msg_iov;	/* Vector of data to send/receive into.  */
+    size_t msg_iovlen;		/* Number of elements in the vector.  */
+
+    __ptr_t msg_accrights;	/* Access rights information.  */
+    size_t msg_accrightslen;	/* Length of access rights information.  */
+  };
+
+
+/* Protocol number used to manipulate socket-level options
+   with `getsockopt' and `setsockopt'.  */
+#define	SOL_SOCKET	0xffff
+
+/* Socket-level options for `getsockopt' and `setsockopt'.  */
+enum
+  {
+    SO_DEBUG = 0x0001,		/* Record debugging information.  */
+    SO_ACCEPTCONN = 0x0002,	/* Accept connections on socket.  */
+    SO_REUSEADDR = 0x0004,	/* Allow reuse of local addresses.  */
+    SO_KEEPALIVE = 0x0008,	/* Keep connections alive and send
+				   SIGPIPE when they die.  */
+    SO_DONTROUTE = 0x0010,	/* Don't do local routing.  */
+    SO_BROADCAST = 0x0020,	/* Allow transmission of
+				   broadcast messages.  */
+    SO_USELOOPBACK = 0x0040,	/* Use the software loopback to avoid
+				   hardware use when possible.  */
+    SO_LINGER = 0x0080,		/* Block on close of a reliable
+				   socket to transmit pending data.  */
+    SO_OOBINLINE = 0x0100,	/* Receive out-of-band data in-band.  */
+
+    SO_REUSEPORT = 0x0200,	/* Allow local address and port reuse.  */
+
+    SO_SNDBUF = 0x1001,		/* Send buffer size.  */
+    SO_RCVBUF = 0x1002,		/* Receive buffer.  */
+    SO_SNDLOWAT = 0x1003,	/* Send low-water mark.  */
+    SO_RCVLOWAT = 0x1004,	/* Receive low-water mark.  */
+    SO_SNDTIMEO = 0x1005,	/* Send timeout.  */
+    SO_RCVTIMEO = 0x1006,	/* Receive timeout.  */
+
+    SO_ERROR = 0x1007,		/* Get and clear error status.  */
+    SO_STYLE = 0x1008,		/* Get socket connection style.  */
+    SO_TYPE = SO_STYLE,		/* Compatible name for SO_STYLE.  */
+  };
+
+/* Structure used to manipulate the SO_LINGER option.  */
+struct linger
+  {
+    int l_onoff;		/* Nonzero to linger on close.  */
+    int l_linger;		/* Time to linger.  */
+  };
+
+__END_DECLS
diff --git a/bits/statfs.h b/bits/statfs.h
new file mode 100644
index 0000000000..10bc0728b2
--- /dev/null
+++ b/bits/statfs.h
@@ -0,0 +1,52 @@
+/* Definition of `struct statfs', information about a filesystem.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/*
+ * Never include this file directly; use <sys/statfs.h> instead.
+ */
+
+#ifndef	_BITS_STATFS_H
+#define	_BITS_STATFS_H	1
+
+#include <bits/types.h>
+
+/* GNU Hurd NOTE: The size of this structure (16 ints) is known in
+   <hurd/hurd_types.defs>, since it is used in the `file_statfs' RPC.  MiG
+   does not cope at all well with the passed C structure not being of the
+   expected size.  There are some filler words at the end to allow for
+   future expansion.  To increase the size of the structure used in the RPC
+   and retain binary compatibility, we would need to assign a new message
+   number.  */
+
+struct statfs
+  {
+    unsigned int f_type;
+    unsigned int f_bsize;
+    unsigned int f_blocks;
+    unsigned int f_bfree;
+    unsigned int f_bavail;
+    unsigned int f_files;
+    unsigned int f_ffree;
+    __fsid_t f_fsid;
+    unsigned int f_namelen;
+    unsigned int f_spare[6];
+  };
+
+
+#endif /* bits/statfs.h */
diff --git a/bits/termios.h b/bits/termios.h
new file mode 100644
index 0000000000..9a6aed2bba
--- /dev/null
+++ b/bits/termios.h
@@ -0,0 +1,230 @@
+/* termios type and macro definitions.  4.4 BSD/generic GNU version.
+   Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* These macros are also defined in some <bits/ioctls.h> files (with
+   numerically identical values), but this serves to shut up cpp's
+   complaining. */
+#ifdef __USE_BSD
+
+#ifdef MDMBUF
+#undef MDMBUF
+#endif
+#ifdef FLUSHO
+#undef FLUSHO
+#endif
+#ifdef PENDIN
+#undef PENDIN
+#endif
+
+#endif /* __USE_BSD */
+
+#ifdef ECHO
+#undef ECHO
+#endif
+#ifdef TOSTOP
+#undef TOSTOP
+#endif
+#ifdef NOFLSH
+#undef NOFLSH
+#endif
+
+
+/* These definitions match those used by the 4.4 BSD kernel.
+   If the operating system has termios system calls or ioctls that
+   correctly implement the POSIX.1 behavior, there should be a
+   system-dependent version of this file that defines `struct termios',
+   `tcflag_t', `cc_t', `speed_t' and the `TC*' constants appropriately.  */
+
+/* Type of terminal control flag masks.  */
+typedef unsigned long int tcflag_t;
+
+/* Type of control characters.  */
+typedef unsigned char cc_t;
+
+/* Type of baud rate specifiers.  */
+typedef long int speed_t;
+
+/* Terminal control structure.  */
+struct termios
+{
+  /* Input modes.  */
+  tcflag_t c_iflag;
+#define	IGNBRK	(1 << 0)	/* Ignore break condition.  */
+#define	BRKINT	(1 << 1)	/* Signal interrupt on break.  */
+#define	IGNPAR	(1 << 2)	/* Ignore characters with parity errors.  */
+#define	PARMRK	(1 << 3)	/* Mark parity and framing errors.  */
+#define	INPCK	(1 << 4)	/* Enable input parity check.  */
+#define	ISTRIP	(1 << 5)	/* Strip 8th bit off characters.  */
+#define	INLCR	(1 << 6)	/* Map NL to CR on input.  */
+#define	IGNCR	(1 << 7)	/* Ignore CR.  */
+#define	ICRNL	(1 << 8)	/* Map CR to NL on input.  */
+#define	IXON	(1 << 9)	/* Enable start/stop output control.  */
+#define	IXOFF	(1 << 10)	/* Enable start/stop input control.  */
+#ifdef	__USE_BSD
+#define	IXANY	(1 << 11)	/* Any character will restart after stop.  */
+#define	IMAXBEL	(1 << 13)	/* Ring bell when input queue is full.  */
+#endif
+
+  /* Output modes.  */
+  tcflag_t c_oflag;
+#define	OPOST	(1 << 0)	/* Perform output processing.  */
+#ifdef	__USE_BSD
+#define	ONLCR	(1 << 1)	/* Map NL to CR-NL on output.  */
+#define	OXTABS	(1 << 2)	/* Expand tabs to spaces.  */
+#define	ONOEOT	(1 << 8)	/* Discard EOT (^D) on output.  */
+#endif
+
+  /* Control modes.  */
+  tcflag_t c_cflag;
+#ifdef	__USE_BSD
+#define	CIGNORE	(1 << 0)	/* Ignore these control flags.  */
+#endif
+#define	CSIZE	(CS5|CS6|CS7|CS8)	/* Number of bits per byte (mask).  */
+#define	CS5	0		/* 5 bits per byte.  */
+#define	CS6	(1 << 8)	/* 6 bits per byte.  */
+#define	CS7	(1 << 9)	/* 7 bits per byte.  */
+#define	CS8	(CS6|CS7)	/* 8 bits per byte.  */
+#define	CSTOPB	(1 << 10)	/* Two stop bits instead of one.  */
+#define	CREAD	(1 << 11)	/* Enable receiver.  */
+#define	PARENB	(1 << 12)	/* Parity enable.  */
+#define	PARODD	(1 << 13)	/* Odd parity instead of even.  */
+#define	HUPCL	(1 << 14)	/* Hang up on last close.  */
+#define	CLOCAL	(1 << 15)	/* Ignore modem status lines.  */
+#ifdef	__USE_BSD
+#define	CCTS_OFLOW	(1 << 16)	/* CTS flow control of output.  */
+#define	CRTS_IFLOW	(1 << 17)	/* RTS flow control of input.  */
+#define	MDMBUF		(1 << 20)	/* Carrier flow control of output.  */
+#endif
+
+  /* Local modes.  */
+  tcflag_t c_lflag;
+#ifdef	__USE_BSD
+#define	ECHOKE	(1 << 0)	/* Visual erase for KILL.  */
+#endif
+#define	_ECHOE	(1 << 1)	/* Visual erase for ERASE.  */
+#define	ECHOE	_ECHOE
+#define	_ECHOK	(1 << 2)	/* Echo NL after KILL.  */
+#define	ECHOK	_ECHOK
+#define	_ECHO	(1 << 3)	/* Enable echo.  */
+#define	ECHO	_ECHO
+#define	_ECHONL	(1 << 4)	/* Echo NL even if ECHO is off.  */
+#define	ECHONL	_ECHONL
+#ifdef	__USE_BSD
+#define	ECHOPRT	(1 << 5)	/* Hardcopy visual erase.  */
+#define	ECHOCTL	(1 << 6)	/* Echo control characters as ^X.  */
+#endif
+#define	_ISIG	(1 << 7)	/* Enable signals.  */
+#define	ISIG	_ISIG
+#define	_ICANON	(1 << 8)	/* Do erase and kill processing.  */
+#define	ICANON	_ICANON
+#ifdef	__USE_BSD
+#define	ALTWERASE (1 << 9)	/* Alternate WERASE algorithm.  */
+#endif
+#define	_IEXTEN	(1 << 10)	/* Enable DISCARD and LNEXT.  */
+#define	IEXTEN	_IEXTEN
+#define	EXTPROC	(1 << 11)	/* External processing.  */
+#define	_TOSTOP	(1 << 22)	/* Send SIGTTOU for background output.  */
+#define	TOSTOP	_TOSTOP
+#ifdef	__USE_BSD
+#define	FLUSHO	(1 << 23)	/* Output being flushed (state).  */
+#define	NOKERNINFO (1 << 25)	/* Disable VSTATUS.  */
+#define	PENDIN	(1 << 29)	/* Retype pending input (state).  */
+#endif
+#define	_NOFLSH	(1 << 31)	/* Disable flush after interrupt.  */
+#define	NOFLSH	_NOFLSH
+
+  /* Control characters.  */
+#define	VEOF	0		/* End-of-file character [ICANON].  */
+#define	VEOL	1		/* End-of-line character [ICANON].  */
+#ifdef	__USE_BSD
+#define	VEOL2	2		/* Second EOL character [ICANON].  */
+#endif
+#define	VERASE	3		/* Erase character [ICANON].  */
+#ifdef	__USE_BSD
+#define	VWERASE	4		/* Word-erase character [ICANON].  */
+#endif
+#define	VKILL	5		/* Kill-line character [ICANON].  */
+#ifdef	__USE_BSD
+#define	VREPRINT 6		/* Reprint-line character [ICANON].  */
+#endif
+#define	VINTR	8		/* Interrupt character [ISIG].  */
+#define	VQUIT	9		/* Quit character [ISIG].  */
+#define	VSUSP	10		/* Suspend character [ISIG].  */
+#ifdef	__USE_BSD
+#define	VDSUSP	11		/* Delayed suspend character [ISIG].  */
+#endif
+#define	VSTART	12		/* Start (X-ON) character [IXON, IXOFF].  */
+#define	VSTOP	13		/* Stop (X-OFF) character [IXON, IXOFF].  */
+#ifdef	__USE_BSD
+#define	VLNEXT	14		/* Literal-next character [IEXTEN].  */
+#define	VDISCARD 15		/* Discard character [IEXTEN].  */
+#endif
+#define	VMIN	16		/* Minimum number of bytes read at once [!ICANON].  */
+#define	VTIME	17		/* Time-out value (tenths of a second) [!ICANON].  */
+#ifdef	__USE_BSD
+#define	VSTATUS	18		/* Status character [ICANON].  */
+#endif
+#define	NCCS	20		/* Value duplicated in <hurd/tioctl.defs>.  */
+  cc_t c_cc[NCCS];
+
+  /* Input and output baud rates.  */
+  speed_t __ispeed, __ospeed;
+#define	B0	0		/* Hang up.  */
+#define	B50	50		/* 50 baud.  */
+#define	B75	75		/* 75 baud.  */
+#define	B110	110		/* 110 baud.  */
+#define	B134	134		/* 134.5 baud.  */
+#define	B150	150		/* 150 baud.  */
+#define	B200	200		/* 200 baud.  */
+#define	B300	300		/* 300 baud.  */
+#define	B600	600		/* 600 baud.  */
+#define	B1200	1200		/* 1200 baud.  */
+#define	B1800	1800		/* 1800 baud.  */
+#define	B2400	2400		/* 2400 baud.  */
+#define	B4800	4800		/* 4800 baud.  */
+#define	B9600	9600		/* 9600 baud.  */
+#define	B19200	19200		/* 19200 baud.  */
+#define	B38400	38400		/* 38400 baud.  */
+#ifdef	__USE_BSD
+#define	EXTA	19200
+#define	EXTB	38400
+#endif
+};
+
+#define _IOT_termios /* Hurd ioctl type field.  */ \
+  _IOT (_IOTS (tcflag_t), 4, _IOTS (cc_t), NCCS, _IOTS (speed_t), 2)
+
+/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'.  */
+#define	TCSANOW		0	/* Change immediately.  */
+#define	TCSADRAIN	1	/* Change when pending output is written.  */
+#define	TCSAFLUSH	2	/* Flush pending input before changing.  */
+#ifdef	__USE_BSD
+#define	TCSASOFT	0x10	/* Flag: Don't alter hardware state.  */
+#endif
+
+/* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
+#define	TCIFLUSH	1	/* Discard data received but not yet read.  */
+#define	TCOFLUSH	2	/* Discard data written but not yet sent.  */
+#define	TCIOFLUSH	3	/* Discard all pending data.  */
+
+/* Values for the ACTION argument to `tcflow'.  */
+#define	TCOOFF	1		/* Suspend output.  */
+#define	TCOON	2		/* Restart suspended output.  */
+#define	TCIOFF	3		/* Send a STOP character.  */
+#define	TCION	4		/* Send a START character.  */
diff --git a/bits/types.h b/bits/types.h
new file mode 100644
index 0000000000..c264adc917
--- /dev/null
+++ b/bits/types.h
@@ -0,0 +1,94 @@
+/* Copyright (C) 1991, 92, 94, 95, 96, 97 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/*
+ * Never include this file directly; use <sys/types.h> instead.
+ */
+
+#ifndef	_BITS_TYPES_H
+#define	_BITS_TYPES_H	1
+
+
+/* Convenience types.  */
+typedef unsigned char __u_char;
+typedef unsigned short __u_short;
+typedef unsigned int __u_int;
+typedef unsigned long __u_long;
+#ifdef __GNUC__
+typedef unsigned long long int __u_quad_t;
+typedef long long int __quad_t;
+#else
+typedef struct
+{
+  long __val[2];
+} __quad_t;
+typedef struct
+{
+  __u_long __val[2];
+} __u_quad_t;
+#endif
+typedef signed char __int8_t;
+typedef unsigned char __uint8_t;
+typedef signed short int __int16_t;
+typedef unsigned short int __uint16_t;
+typedef signed int __int32_t;
+typedef unsigned int __uint32_t;
+#ifdef __GNUC__
+typedef signed long long int __int64_t;
+typedef unsigned long long int __uint64_t;
+#endif
+typedef __quad_t *__qaddr_t;
+typedef int __dev_t;		/* Type of device numbers.  */
+typedef unsigned int __uid_t;	/* Type of user identifications.  */
+typedef unsigned int __gid_t;	/* Type of group identifications.  */
+typedef unsigned int __ino_t;	/* Type of file serial numbers.  */
+typedef unsigned int __mode_t;	/* Type of file attribute bitmasks.  */
+typedef unsigned short int __nlink_t; /* Type of file link counts.  */
+typedef long int __off_t;	/* Type of file sizes and offsets.  */
+typedef __quad_t __loff_t;	/* Type of file sizes and offsets.  */
+typedef int __pid_t;		/* Type of process identifications.  */
+typedef int __ssize_t;		/* Type of a byte count, or error.  */
+typedef __u_quad_t __fsid_t;	/* Type of file system IDs.  */
+typedef long int __clock_t;	/* Type of CPU usage counts.  */
+
+/* Everythin' else.  */
+typedef long int __daddr_t;	/* The type of a disk address.  */
+typedef char *__caddr_t;
+typedef long int __time_t;
+typedef long int __swblk_t;	/* Type of a swap block maybe?  */
+typedef long int __key_t;	/* Type of an IPC key */
+
+/* fd_set for select.  */
+
+/* Number of descriptors that can fit in an `fd_set'.  */
+#define	__FD_SETSIZE	256
+
+/* It's easier to assume 8-bit bytes than to get CHAR_BIT.  */
+#define	__NFDBITS	(sizeof (unsigned long int) * 8)
+#define	__FDELT(d)	((d) / __NFDBITS)
+#define	__FDMASK(d)	(1 << ((d) % __NFDBITS))
+
+typedef struct
+  {
+    /* XPG4.2 requires this member name.  */
+    unsigned long int fds_bits[(__FD_SETSIZE + (__NFDBITS - 1)) / __NFDBITS];
+  } __fd_set;
+
+typedef unsigned long int __fd_mask;
+
+#endif /* bits/types.h */
diff --git a/bits/uio.h b/bits/uio.h
new file mode 100644
index 0000000000..1a12697008
--- /dev/null
+++ b/bits/uio.h
@@ -0,0 +1,32 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_UIO_H
+#error "Never use <bits/uio.h> directly; include <sys/uio.h> instead."
+#endif
+
+
+/* `struct iovec' -- Structure describing a section of memory.  */
+
+struct iovec
+{
+  /* Starting address.  */
+  __ptr_t iov_base;
+  /* Length in bytes.  */
+  size_t iov_len;
+};
diff --git a/bits/ustat.h b/bits/ustat.h
new file mode 100644
index 0000000000..aa5d493e63
--- /dev/null
+++ b/bits/ustat.h
@@ -0,0 +1,30 @@
+/* Generic declaration of ustat structure.
+Copyright (C) 1994, 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+__BEGIN_DECLS
+
+struct ustat
+{
+  __daddr_t f_tfree;	/* total free */
+  __ino_t f_tinode;	/* total inodes free */
+  char f_fname[6];	/* filesystem name */
+  char f_fpack[6];	/* filesystem pack name */
+};
+
+__END_DECLS
diff --git a/bits/utmp.h b/bits/utmp.h
new file mode 100644
index 0000000000..b8decb0598
--- /dev/null
+++ b/bits/utmp.h
@@ -0,0 +1,53 @@
+/* The `struct utmp' type, describing entries in the utmp file.  Generic/BSDish
+   Copyright (C) 1993, 1996, 1997 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _UTMP_H
+#error "Never use <bits/utmp.h> directly; include <utmp.h> instead."
+#endif
+
+
+#include <features.h>
+
+#include <paths.h>
+#include <time.h>
+
+
+#define	UT_NAMESIZE	8
+#define	UT_LINESIZE	8
+#define	UT_HOSTSIZE	16
+
+__BEGIN_DECLS
+
+struct lastlog {
+	time_t	ll_time;
+	char	ll_line[UT_LINESIZE];
+	char	ll_host[UT_HOSTSIZE];
+};
+
+struct utmp {
+	char	ut_line[UT_LINESIZE];
+	char	ut_name[UT_NAMESIZE];
+	char	ut_host[UT_HOSTSIZE];
+	long	ut_time;
+};
+
+
+#define _HAVE_UT_HOST 1		/* We have the ut_host field.  */
+
+
+__END_DECLS
diff --git a/bits/utsname.h b/bits/utsname.h
new file mode 100644
index 0000000000..5594bcc4da
--- /dev/null
+++ b/bits/utsname.h
@@ -0,0 +1,3 @@
+/* The size of the character arrays used to hold the information
+   in a `struct utsname'.  Enlarge this as necessary.  */
+#define	_UTSNAME_LENGTH	1024
diff --git a/bits/waitstatus.h b/bits/waitstatus.h
new file mode 100644
index 0000000000..8e97f2702c
--- /dev/null
+++ b/bits/waitstatus.h
@@ -0,0 +1,104 @@
+/* Definitions of status bits for `wait' et al.
+   Copyright (C) 1992, 1994, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_WAIT_H
+#error "Never use <bits/waitstatus.h> directly; include <sys/wait.h> instead."
+#endif
+
+
+/* Everything extant so far uses these same bits.  */
+
+
+/* If WIFEXITED(STATUS), the low-order 8 bits of the status.  */
+#define	__WEXITSTATUS(status)	(((status) & 0xff00) >> 8)
+
+/* If WIFSIGNALED(STATUS), the terminating signal.  */
+#define	__WTERMSIG(status)	((status) & 0x7f)
+
+/* If WIFSTOPPED(STATUS), the signal that stopped the child.  */
+#define	__WSTOPSIG(status)	__WEXITSTATUS(status)
+
+/* Nonzero if STATUS indicates normal termination.  */
+#define	__WIFEXITED(status)	(__WTERMSIG(status) == 0)
+
+/* Nonzero if STATUS indicates termination by a signal.  */
+#ifdef	__GNUC__
+#define	__WIFSIGNALED(status)						      \
+  (__extension__ ({ int __status = (status);				      \
+		    !__WIFSTOPPED(__status) && !__WIFEXITED(__status); }))
+#else	/* Not GCC.  */
+#define	__WIFSIGNALED(status)	(!__WIFSTOPPED(status) && !__WIFEXITED(status))
+#endif	/* GCC.  */
+
+/* Nonzero if STATUS indicates the child is stopped.  */
+#define	__WIFSTOPPED(status)	(((status) & 0xff) == 0x7f)
+
+/* Nonzero if STATUS indicates the child dumped core.  */
+#define	__WCOREDUMP(status)	((status) & __WCOREFLAG)
+
+/* Macros for constructing status values.  */
+#define	__W_EXITCODE(ret, sig)	((ret) << 8 | (sig))
+#define	__W_STOPCODE(sig)	((sig) << 8 | 0x7f)
+#define	__WCOREFLAG		0x80
+
+
+#ifdef	__USE_BSD
+
+#include <endian.h>
+
+union wait
+  {
+    int w_status;
+    struct
+      {
+#if	__BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned int __w_termsig:7; /* Terminating signal.  */
+	unsigned int __w_coredump:1; /* Set if dumped core.  */
+	unsigned int __w_retcode:8; /* Return code if exited normally.  */
+	unsigned int:16;
+#endif				/* Little endian.  */
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int:16;
+	unsigned int __w_retcode:8;
+	unsigned int __w_coredump:1;
+	unsigned int __w_termsig:7;
+#endif				/* Big endian.  */
+      } __wait_terminated;
+    struct
+      {
+#if	__BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned int __w_stopval:8; /* W_STOPPED if stopped.  */
+	unsigned int __w_stopsig:8; /* Stopping signal.  */
+	unsigned int:16;
+#endif				/* Little endian.  */
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int:16;
+	unsigned int __w_stopsig:8; /* Stopping signal.  */
+	unsigned int __w_stopval:8; /* W_STOPPED if stopped.  */
+#endif				/* Big endian.  */
+      } __wait_stopped;
+  };
+
+#define	w_termsig	__wait_terminated.__w_termsig
+#define	w_coredump	__wait_terminated.__w_coredump
+#define	w_retcode	__wait_terminated.__w_retcode
+#define	w_stopsig	__wait_stopped.__w_stopsig
+#define	w_stopval	__wait_stopped.__w_stopval
+
+#endif	/* Use BSD.  */