Sun Apr 28 14:14:35 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>

	* sysdeps/unix/sysv/linux/i386/Makefile: New file.

Wed Apr 24 17:35:30  Ulrich Drepper  <drepper@cygnus.com>

	* inet/netinet/in.h, socket/sys/socket.h: Move to
	sysdeps/generic/netinet/in.h, sysdeps/generic/sys/socket.h.
	* netinet/in.h, sys/socket.h: Remove file.

	* misc/Makefile (routines): Add fdatasync.

	* posix/Makefile (headers): Add sched.h.
	(routines): Add nanosleep, sched_setp, sched_getp, sched_sets,
	sched_gets, sched_yield, sched_primax, sched_primin, sched_rr_gi.

	* posix/getconf.c (vars): Add entries for _POSIX_REALTIME_SIGNALS,
	_POSIX_PRIORITY_SCHEDULING, _POSIX_TIMERS, _POSIX_ASYNCHRONOUS_IO,
	_POSIX_PRIORITIZED_IO, _POSIX_SYNCHRONIZED_IO, _POSIX_FSYNC,
	_POSIX_MAPPED_FILES, _POSIX_MEMLOCK, _POSIX_MEMLOCK_RANGE,
	_POSIX_MEMORY_PROTECTION, _POSIX_MESSAGE_PASSING,
	_POSIX_SEMAPHORES, _POSIX_SHARED_MEMORY_OBJECTS.

	* posix/sched.h: New file.  Header for POSIX scheduling interface.

	* posix/unistd.h: Describe options from POSIX.4.
	Add declaration of fdatasync.

	* sysdeps/generic/confname.h: Add definition for
	 _SC_REALTIME_SIGNALS, _SC_PRIORITY_SCHEDULING, _SC_TIMERS,
	_SC_ASYNCHRONOUS_IO, _SC_PRIORITIZED_IO, _SC_SYNCHRONIZED_IO,
	_SC_FSYNC, _SC_MAPPED_FILES, _SC_MEMLOCK, _SC_MEMLOCK_RANGE,
	_SC_MEMORY_PROTECTION, _SC_MESSAGE_PASSING,
	_SC_SEMAPHORES, _SC_SHARED_MEMORY_OBJECTS.

	* sysdeps/generic/fdatasync.c: New file.  Default implementation
	simply uses fsync.

	* sysdeps/generic/netinit/in.h: Moved to here from inet/netinet/in.h.

	* sysdeps/generic/schedbits.h: New file.  System dependent
	defintion for POSIX.4 scheduling interface.

	* sysdeps/generic/sys/socket.h: Moved to here from socket/sys/socket.h.

	* sysdeps/stub/nanosleep.c, sysdeps/stub/sched_getp.c,
	sysdeps/stub/sched_gets.c, sysdeps/stub/sched_primax.c,
	sysdeps/stub/sched_primin.c, sysdeps/stub/sched_rr_gi.c,
	sysdeps/stub/sched_setp.c, sysdeps/stub/sched_sets.c,
	sysdeps/stub/sched_yield.c: New file:  Stub implementation
	for systems missing these POSIX.4 system calls.

	* sysdeps/unix/sysv/linux/gnu/types.h,
	sysdeps/unix/sysv/linux/ioctls.h: Use kernel header for
	data type definitions.

	* sysdeps/unix/sysv/linux/netinet/in.h: New file.  Linux
	specific version.

	* sysdeps/unix/sysv/linux/posix_opt.h: New file.  Define POSIX
	options applicable for Linux.

	* sysdeps/unix/sysv/linux/syscalls.list: Add definitions for
	fdatasync, nanosleep, sched_setparam, sched_getparam,
	sched_setscheduler, sched_getscheduler, sched_yield,
	sched_get_priority_max, sched_get_priority_min, and
	sched_rr_get_interval.

	* sysdeps/unix/sysv/linux/sysconf.c: Add handling of POSIX.4
	options.

	* sysdeps/unix/sysv/linux/termbits.h: Use kernel headers.

	* time/sys/time.h: Remove definition of `struct timespec'.

	* time/time.h (struct timespec): Move definition to here.

 	variable, LUCKY, to use instead of setting D to -1 (which fouls

8 files changed, 408 insertions, 193 deletions

diff --git a/sysdeps/unix/sysv/linux/gnu/types.h b/sysdeps/unix/sysv/linux/gnu/types.h
index 43264b5d45..7876c408c4 100644
--- a/sysdeps/unix/sysv/linux/gnu/types.h
+++ b/sysdeps/unix/sysv/linux/gnu/types.h
@@ -19,6 +19,9 @@ Cambridge, MA 02139, USA.  */
 #ifndef	_GNU_TYPES_H
 #define	_GNU_TYPES_H	1
 
+/* Get actual type definitions for architecture from kernel headers.  */
+#include <linux/posix_types.h>
+
 /* Convenience types.  */
 typedef unsigned char __u_char;
 typedef unsigned short __u_short;
@@ -38,15 +41,15 @@ typedef struct
   __u_long val[2];
 } __u_quad_t;
 #endif
-typedef unsigned short int __dev_t;	/* Type of device numbers.  */
-typedef unsigned short int __uid_t;	/* Type of user identifications.  */
-typedef unsigned short int __gid_t;	/* Type of group identifications.  */
-typedef unsigned long int __ino_t;	/* Type of file serial numbers.  */
-typedef unsigned short 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 int __pid_t;			/* Type of process identifications.  */
-typedef int __ssize_t;			/* Type of a byte count, or error.  */
+typedef __kernel_dev_t __dev_t;		/* Type of device numbers.  */
+typedef __kernel_uid_t __uid_t;		/* Type of user identifications.  */
+typedef __kernel_gid_t __gid_t;		/* Type of group identifications.  */
+typedef __kernel_ino_t __ino_t;		/* Type of file serial numbers.  */
+typedef __kernel_mode_t __mode_t;	/* Type of file attribute bitmasks.  */
+typedef __kernel_nlink_t __nlink_t; 	/* Type of file link counts.  */
+typedef __kernel_off_t __off_t;		/* Type of file sizes and offsets.  */
+typedef __kernel_pid_t __pid_t;		/* Type of process identifications.  */
+typedef __kernel_ssize_t __ssize_t;	/* Type of a byte count, or error.  */
 #ifdef __GNUC__
 typedef long long int __fsid_t;		/* Type of file system IDs.  */
 #else
@@ -56,33 +59,12 @@ typedef struct {			/* Type of file system IDs.  */
 #endif
 
 /* Everythin' else.  */
-typedef int __daddr_t;			/* The type of a disk address.  */
-typedef char *__caddr_t;
-typedef long int __time_t;
+typedef __kernel_daddr_t __daddr_t;	/* The type of a disk address.  */
+typedef __kernel_caddr_t __caddr_t;
+typedef __kernel_time_t __time_t;
 typedef long int __swblk_t;		/* Type of a swap block maybe?  */
 
 /* 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
-  {
-    /* Some braindead old software uses this member name.  */
-    unsigned long int fds_bits[(__FD_SETSIZE + (__NFDBITS - 1)) / __NFDBITS];
-  } __fd_set;
-
-/* 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))
-
+typedef __kernel_fd_set __fd_set;
 
 #endif /* gnu/types.h */
diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
new file mode 100644
index 0000000000..19eb60fb6d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/Makefile
@@ -0,0 +1,4 @@
+# Set the shared library version numbers for Linux/i386.
+
+libc.so-version = .6
+libm.so-version = .6
diff --git a/sysdeps/unix/sysv/linux/ioctls.h b/sysdeps/unix/sysv/linux/ioctls.h
new file mode 100644
index 0000000000..f7a3467ca6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ioctls.h
@@ -0,0 +1,26 @@
+/* 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 _IOCTLS_H
+#define _IOCTLS_H 1
+
+/* Use the definitions from the kernel header files.  */
+#include <asm/ioctls.h>
+#include <linux/sockios.h>
+
+#endif /* ioctls.h  */
diff --git a/sysdeps/unix/sysv/linux/netinet/in.h b/sysdeps/unix/sysv/linux/netinet/in.h
new file mode 100644
index 0000000000..2ce224ca43
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/netinet/in.h
@@ -0,0 +1,191 @@
+/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 General Public License as published by
+the Free Software Foundation; either version 2, 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the GNU C Library; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#ifndef	_NETINET_IN_H
+
+#define	_NETINET_IN_H	1
+#include <features.h>
+
+#include <sys/socket.h>
+
+
+/* Standard well-defined IP protocols.  */
+enum
+  {
+    IPPROTO_IP = 0,	/* Dummy protocol for TCP.  */
+    IPPROTO_ICMP = 1,	/* Internet Control Message Protocol.  */
+    IPPROTO_IGMP = 2,	/* Internet Group Management Protocol. */
+    IPPROTO_TCP = 6,	/* Transmission Control Protocol.  */
+    IPPROTO_EGP = 8,	/* Exterior Gateway Protocol.  */
+    IPPROTO_PUP = 12,	/* PUP protocol.  */
+    IPPROTO_UDP = 17,	/* User Datagram Protocol.  */
+    IPPROTO_IDP = 22,	/* XNS IDP protocol.  */
+
+    IPPROTO_RAW = 255,	/* Raw IP packets.  */
+    IPPROTO_MAX,
+  };
+
+/* Standard well-known ports.  */
+enum
+  {
+    IPPORT_ECHO = 7,		/* Echo service.  */
+    IPPORT_DISCARD = 9,		/* Discard transmissions service.  */
+    IPPORT_SYSTAT = 11,		/* System status service.  */
+    IPPORT_DAYTIME = 13,	/* Time of day service.  */
+    IPPORT_NETSTAT = 15,	/* Network status service.  */
+    IPPORT_FTP = 21,		/* File Transfer Protocol.  */
+    IPPORT_TELNET = 23,		/* Telnet protocol.  */
+    IPPORT_SMTP = 25,		/* Simple Mail Transfer Protocol.  */
+    IPPORT_TIMESERVER = 37,	/* Timeserver service.  */
+    IPPORT_NAMESERVER = 42,	/* Domain Name Service.  */
+    IPPORT_WHOIS = 43,		/* Internet Whois service.  */
+    IPPORT_MTP = 57,
+
+    IPPORT_TFTP = 69,		/* Trivial File Transfer Protocol.  */
+    IPPORT_RJE = 77,
+    IPPORT_FINGER = 79,		/* Finger service.  */
+    IPPORT_TTYLINK = 87,
+    IPPORT_SUPDUP = 95,		/* SUPDUP protocol.  */
+
+
+    IPPORT_EXECSERVER = 512,	/* execd service.  */
+    IPPORT_LOGINSERVER = 513,	/* rlogind service.  */
+    IPPORT_CMDSERVER = 514,
+    IPPORT_EFSSERVER = 520,
+
+    /* UDP ports.  */
+    IPPORT_BIFFUDP = 512,
+    IPPORT_WHOSERVER = 513,
+    IPPORT_ROUTESERVER = 520,
+
+    /* Ports less than this value are reserved for privileged processes.  */
+    IPPORT_RESERVED = 1024,
+
+    /* Ports greater this value are reserved for (non-privileged) servers.  */
+    IPPORT_USERRESERVED = 5000,
+  };
+
+
+/* Link numbers.  */
+#define	IMPLINK_IP		155
+#define	IMPLINK_LOWEXPER	156
+#define	IMPLINK_HIGHEXPER	158
+
+
+/* Internet address.  */
+struct in_addr
+  {
+    unsigned int s_addr;
+  };
+
+
+/* Definitions of the bits in an Internet address integer.
+
+   On subnets, host and network parts are found according to
+   the subnet mask, not these masks.  */
+
+#define	IN_CLASSA(a)		((((unsigned) (a)) & 0x80000000) == 0)
+#define	IN_CLASSA_NET		0xff000000
+#define	IN_CLASSA_NSHIFT	24
+#define	IN_CLASSA_HOST		(0xffffffff & ~IN_CLASSA_NET)
+#define	IN_CLASSA_MAX		128
+
+#define	IN_CLASSB(a)		((((unsigned) (a)) & 0xc0000000) == 0x80000000)
+#define	IN_CLASSB_NET		0xffff0000
+#define	IN_CLASSB_NSHIFT	16
+#define	IN_CLASSB_HOST		(0xffffffff & ~IN_CLASSB_NET)
+#define	IN_CLASSB_MAX		65536
+
+#define	IN_CLASSC(a)		((((unsigned) (a)) & 0xc0000000) == 0xc0000000)
+#define	IN_CLASSC_NET		0xffffff00
+#define	IN_CLASSC_NSHIFT	8
+#define	IN_CLASSC_HOST		(0xffffffff & ~IN_CLASSC_NET)
+
+#define	IN_CLASSD(a)		((((unsigned) (a)) & 0xf0000000) == 0xe0000000)
+#define	IN_MULTICAST(a)		IN_CLASSD(a)
+
+#define	IN_EXPERIMENTAL(a)	((((unsigned) (a)) & 0xe0000000) == 0xe0000000)
+#define	IN_BADCLASS(a)		((((unsigned) (a)) & 0xf0000000) == 0xf0000000)
+
+/* Address to accept any incoming messages.  */
+#define	INADDR_ANY		((unsigned) 0x00000000)
+/* Address to send to all hosts.  */
+#define	INADDR_BROADCAST	((unsigned) 0xffffffff)
+/* Address indicating an error return.  */
+#define	INADDR_NONE		0xffffffff
+
+/* Network number for local host loopback.  */
+#define	IN_LOOPBACKNET	127
+/* Address to loopback in software to local host.  */
+#ifndef INADDR_LOOPBACK
+#define	INADDR_LOOPBACK	0x7f000001	/* Internet address 127.0.0.1.  */
+#endif
+
+
+/* Get the definition of the macro to define the common sockaddr members.  */
+#include <sockaddrcom.h>
+
+
+/* Structure describing an Internet socket address.  */
+struct sockaddr_in
+  {
+    __SOCKADDR_COMMON (sin_);
+    unsigned short int sin_port;	/* Port number.  */
+    struct in_addr sin_addr;		/* Internet address.  */
+
+    /* Pad to size of `struct sockaddr'.  */
+    unsigned char sin_zero[sizeof(struct sockaddr) -
+			   __SOCKADDR_COMMON_SIZE -
+			   sizeof(unsigned short int) -
+			   sizeof(struct in_addr)];
+  };
+
+/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
+   The `ip_dst' field is used for the first-hop gateway when using a
+   source route (this gets put into the header proper).  */
+struct ip_opts
+  {
+    struct in_addr ip_dst;	/* First hop; zero without source route.  */
+    char ip_opts[40];		/* Actually variable in size.  */
+  };
+
+/* Structure used for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */
+struct ip_mreq
+{
+  struct in_addr imr_multiaddr;	/* IP multicast address of group */
+  struct in_addr imr_interface;	/* local IP address of interface */
+};
+
+/* Functions to convert between host and network byte order.  */
+
+extern unsigned long int ntohl __P ((unsigned long int));
+extern unsigned short int ntohs __P ((unsigned short int));
+extern unsigned long int htonl __P ((unsigned long int));
+extern unsigned short int htons __P ((unsigned short int));
+
+#include <endian.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+/* The host byte order is the same as network byte order,
+   so these functions are all just identity.  */
+#define	ntohl(x)	(x)
+#define	ntohs(x)	(x)
+#define	htonl(x)	(x)
+#define	htons(x)	(x)
+#endif
+
+#endif	/* netinet/in.h */
diff --git a/sysdeps/unix/sysv/linux/posix_opt.h b/sysdeps/unix/sysv/linux/posix_opt.h
new file mode 100644
index 0000000000..d336335fc3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/posix_opt.h
@@ -0,0 +1,57 @@
+/* Define POSIX options for Linux.
+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	_POSIX_OPT_H
+#define	_POSIX_OPT_H	1
+
+/* Job control is supported.  */
+#define	_POSIX_JOB_CONTROL	1
+
+/* Processes have a saved set-user-ID and a saved set-group-ID.  */
+#define	_POSIX_SAVED_IDS	1
+
+/* Priority scheduling is supported.  */
+#define	_POSIX_PRIORITY_SCHEDULING	1
+
+/* Synchronizing file data is supported.  */
+#define	_POSIX_SYNCHRONIZED_IO	1
+
+/* The fsync function is present.  */
+#define	_POSIX_FSYNC	1
+
+/* Mapping of files to memory is supported.  */
+#define	_POSIX_MAPPED_FILES	1
+
+/* Locking of all memory is supported.  */
+#define	_POSIX_MEMLOCK	1
+
+/* Locking of ranges of memory is supported.  */
+#define	_POSIX_MEMLOCK_RANGE	1
+
+/* Setting of memory protections is supported.  */
+#define	_POSIX_MEMORY_PROTECTION	1
+
+/* Only root can change owner of file.  */
+#define	_POSIX_CHOWN_RESTRICTED	1
+
+/* `c_cc' member of 'struct termios' structure can be disabled by
+   using the value _POSIX_VDISABLE.  */
+#define	_POSIX_VDISABLE	'\0'
+
+#endif /* posix_opt.h */
diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index 8bec38d204..42d3e7ef89 100644
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -1,6 +1,7 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 adjtimex	adjtime	adjtimex	1	__adjtimex
+fdatasync	-	fdatasync	1	fdatasync
 fork		-	fork		0	__fork		fork
 getegid		-	getegid		0	__getegid	getegid
 geteuid		-	geteuid		0	__geteuid	geteuid
@@ -14,11 +15,20 @@ mlockall	-	mlockall	1	__mlockall	mlockall
 mount		-	mount		5	__mount	mount
 munlock		-	munlock		2	__munlock	munlock
 munlockall	-	munlockall	0	__munlockall	munlockall
+nanosleep	-	nanosleep	2	nanosleep
 personality	init-first personality	1	__personality	personality
 pipe		-	pipe		1	__pipe	pipe
 reboot		-	reboot		3	reboot
 s_ptrace	ptrace	ptrace		4	__syscall_ptrace
 s_sigsuspend	sigsuspend sigsuspend	3	__syscall_sigsuspend
+sched_setp	-	sched_setparam	2	__sched_setparam	sched_setparam
+sched_getp	-	sched_getparam	2	__sched_getparam	sched_getparam
+sched_sets	-	sched_setscheduler	3	__sched_setscheduler	sched_setscheduler
+sched_gets	-	sched_getscheduler	1	__sched_getscheduler	sched_getscheduler
+sched_yield	-	sched_yield	0	__sched_yield	sched_yield
+sched_primax	-	sched_get_priority_max	1	__sched_get_priority_max	sched_get_priority_max
+sched_primin	-	sched_get_priority_min	1	__sched_get_priority_min	sched_get_priority_min
+sched_rr_gi	-	sched_rr_get_interval	2	__sched_rr_get_interval	sched_rr_get_interval
 setpgid		-	setpgid		2	setpgid
 sigpending	-	sigpending	1	sigpending
 sigprocmask	-	sigprocmask	3	__sigprocmask	sigprocmask
diff --git a/sysdeps/unix/sysv/linux/sysconf.c b/sysdeps/unix/sysv/linux/sysconf.c
index 447cfd46ae..33640c5871 100644
--- a/sysdeps/unix/sysv/linux/sysconf.c
+++ b/sysdeps/unix/sysv/linux/sysconf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 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
@@ -83,12 +83,112 @@ DEFUN(__sysconf, (name), int name)
 #else
       return -1;
 #endif
+
     case _SC_SAVED_IDS:
 #ifdef	_POSIX_SAVED_IDS
       return 1;
 #else
       return -1;
 #endif
+
+    case _SC_REALTIME_SIGNALS:
+#ifdef	_POSIX_REALTIME_SIGNALS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PRIORITY_SCHEDULING:
+#ifdef	_POSIX_PRIORITY_SCHEDULING
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_TIMERS:
+#ifdef	_POSIX_TIMERS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_ASYNCHRONOUS_IO:
+#ifdef	_POSIX_ASYNCHRONOUS_IO
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PRIORITIZED_IO:
+#ifdef	_POSIX_PRIORITIZED_IO
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SYNCHRONIZED_IO:
+#ifdef	_POSIX_SYNCHRONIZED_IO
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_FSYNC:
+#ifdef	_POSIX_FSYNC
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MAPPED_FILES:
+#ifdef	_POSIX_MAPPED_FILES
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MEMLOCK:
+#ifdef	_POSIX_MEMLOCK
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MEMLOCK_RANGE:
+#ifdef	_POSIX_MEMLOCK_RANGE
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MEMORY_PROTECTION:
+#ifdef	_POSIX_MEMORY_PROTECTION
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MESSAGE_PASSING:
+#ifdef	_POSIX_MESSAGE_PASSING
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SEMAPHORES:
+#ifdef	_POSIX_SEMAPHORES
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SHARED_MEMORY_OBJECTS:
+#ifdef	_POSIX_SHARED_MEMORY_OBJECTS
+      return 1;
+#else
+      return -1;
+#endif
+
     case _SC_VERSION:
       return _POSIX_VERSION;
 
diff --git a/sysdeps/unix/sysv/linux/termbits.h b/sysdeps/unix/sysv/linux/termbits.h
index fa537ab7ac..66d763cd15 100644
--- a/sysdeps/unix/sysv/linux/termbits.h
+++ b/sysdeps/unix/sysv/linux/termbits.h
@@ -1,5 +1,5 @@
 /* termios type and macro definitions.  Linux version.
-Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+Copyright (C) 1993, 1994, 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
@@ -17,163 +17,8 @@ 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.  */
 
-/* Type of terminal control flag masks.  */
-typedef unsigned int tcflag_t;
-
-/* Type of control characters.  */
-typedef unsigned char cc_t;
-
-/* Type of baud rate specifiers.  */
-typedef unsigned int speed_t;
-
-/* Terminal control structure.  */
-struct termios
-{
-  /* Input modes.  */
-  tcflag_t c_iflag;
-#define	IGNBRK	0x0001		/* Ignore break condition.  */
-#define	BRKINT	0x0002		/* Signal interrupt on break.  */
-#define	IGNPAR	0x0004		/* Ignore characters with parity errors.  */
-#define	PARMRK	0x0008		/* Mark parity and framing errors.  */
-#define	INPCK	0x0010		/* Enable input parity check.  */
-#define	ISTRIP	0x0020		/* Strip 8th bit off characters.  */
-#define	INLCR	0x0040		/* Map NL to CR on input.  */
-#define	IGNCR	0x0080		/* Ignore CR.  */
-#define	ICRNL	0x0100		/* Map CR to NL on input.  */
-#ifdef __USE_BSD
-#define	IUCLC	0x0200		/* Map upper case to lower case on input.  */
-#endif
-#define	IXON	0x0400		/* Enable start/stop output control.  */
-#define	IXOFF	0x1000		/* Enable start/stop input control.  */
-#ifdef	__USE_BSD
-#define	IXANY	0x0800		/* Any character will restart after stop.  */
-#define	IMAXBEL	0x2000		/* Ring bell when input queue is full.  */
-#endif
-
-  /* Output modes.  */
-  tcflag_t c_oflag;
-#define	OPOST	0x0001		/* Perform output processing.  */
-#ifdef	__USE_BSD
-#define	OLCUC	0x00000002	/* Map lower case to upper case on output.  */
-#define	ONLCR	0x00000004	/* Map NL to CR-NL on output.  */
-#define	OCRNL	0x00000008
-#define	ONOCR	0x00000010
-#define	ONLRET	0x00000020
-#define	OFILL	0x00000040
-#define	OFDEL	0x00000080
-#define	NLDLY	0x00000100
-#define	NL0	0
-#define	NL1	0x00000100
-#define	CRDLY	0x00000600
-#define	CR0	0
-#define	CR1	0x00000200
-#define	CR2	0x00000400
-#define	CR3	0x00000600
-#define	TABDLY	0x00001800
-#define	TAB0	0
-#define	TAB1	0x00000800
-#define	TAB2	0x00001000
-#define	XTABS	0x00001800
-#define	TAB3	XTABS
-#define	BSDLY	0x00002000
-#define	BS0	0
-#define	BS1	0x00002000
-#define	VTDLY	0x00004000
-#define	VT0	0
-#define	VT1	0x00004000
-#define	FFDLY	0x00008000
-#define	FF0	0
-#define	FF1	0x00008000
-#endif
-
-  /* Control modes.  */
-  tcflag_t c_cflag;
-#define	CSIZE	(CS5|CS6|CS7|CS8) /* Number of bits per byte (mask).  */
-#define	CS5	0		/* 5 bits per byte.  */
-#define	CS6	0x00000010	/* 6 bits per byte.  */
-#define	CS7	0x00000020	/* 7 bits per byte.  */
-#define	CS8	0x00000030	/* 8 bits per byte.  */
-#define	CSTOPB	0x00000040	/* Two stop bits instead of one.  */
-#define	CREAD	0x00000080	/* Enable receiver.  */
-#define	PARENB	0x00000100	/* Parity enable.  */
-#define	PARODD	0x00000200	/* Odd parity instead of even.  */
-#define	HUPCL	0x00000400	/* Hang up on last close.  */
-#define	CLOCAL	0x00000800	/* Ignore modem status lines.  */
-#ifdef	__USE_BSD
-#define	CRTSCTS	0x80000000
-#define	CBAUD	0x0000000f	/* Mask for speed from c_cflag.  */
-#define CBAUDEX	0x00001000	/* Mask for extended speed from c_cflag.  */
-#endif
-
-  /* Local modes.  */
-  tcflag_t c_lflag;
-#ifdef	__USE_BSD
-#define	ECHOKE	0x00000800	/* Visual erase for KILL.  */
-#endif
-#define	ECHOE	0x00000010	/* Visual erase for ERASE.  */
-#define	ECHOK	0x00000020	/* Echo NL after KILL.  */
-#define	ECHO	0x00000008	/* Enable echo.  */
-#define	ECHONL	0x00000040	/* Echo NL even if ECHO is off.  */
-#ifdef	__USE_BSD
-#define	ECHOPRT	0x00000400	/* Hardcopy visual erase.  */
-#define	ECHOCTL	0x00000200	/* Echo control characters as ^X.  */
-#endif
-#define	ISIG	0x00000001	/* Enable signals.  */
-#define	ICANON	0x00000002	/* Do erase and kill processing.  */
-#define	IEXTEN	0x00008000	/* Enable DISCARD and LNEXT.  */
-#define	TOSTOP	0x00000100	/* Send SIGTTOU for background output.  */
-#ifdef	__USE_BSD
-#define	PENDIN	0x00004000	/* Retype pending input (state).  */
-#endif
-#define	NOFLSH	0x00000080	/* Disable flush after interrupt.  */
-
-  cc_t c_line;			/* Line discipline (?) */
-
-  /* Control characters.  */
-#define	VEOF	4		/* End-of-file character [ICANON].  */
-#define	VEOL	11		/* End-of-line character [ICANON].  */
-#ifdef	__USE_BSD
-#define	VEOL2	16		/* Second EOL character [ICANON].  */
-#define	VSWTCH	7		/* ??? */
-#endif
-#define	VERASE	2		/* Erase character [ICANON].  */
-#ifdef	__USE_BSD
-#define	VWERASE	14		/* Word-erase character [ICANON].  */
-#endif
-#define	VKILL	3		/* Kill-line character [ICANON].  */
-#ifdef	__USE_BSD
-#define	VREPRINT 12		/* Reprint-line character [ICANON].  */
-#endif
-#define	VINTR	0		/* Interrupt character [ISIG].  */
-#define	VQUIT	1		/* Quit character [ISIG].  */
-#define	VSUSP	10		/* Suspend character [ISIG].  */
-#define	VSTART	8		/* Start (X-ON) character [IXON, IXOFF].  */
-#define	VSTOP	9		/* Stop (X-OFF) character [IXON, IXOFF].  */
-#ifdef	__USE_BSD
-#define	VLNEXT	15		/* Literal-next character [IEXTEN].  */
-#define	VDISCARD 13		/* Discard character [IEXTEN].  */
-#endif
-#define	VMIN	6		/* Minimum number of bytes read at once [!ICANON].  */
-#define	VTIME	5		/* Time-out value (tenths of a second) [!ICANON].  */
-#define	NCCS	19
-  cc_t c_cc[NCCS];
-};
+/* Use the architecture dependend definitions from the kernel.  */
+#include <asm/termbits.h>
 
 #define _IOT_termios /* Hurd ioctl type field.  */ \
   _IOT (_IOTS (cflag_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.  */
-
-/* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
-#define	TCIFLUSH	0	/* Discard data received but not yet read.  */
-#define	TCOFLUSH	1	/* Discard data written but not yet sent.  */
-#define	TCIOFLUSH	2	/* Discard all pending data.  */
-
-/* Values for the ACTION argument to `tcflow'.  */
-#define	TCOOFF	0		/* Suspend output.  */
-#define	TCOON	1		/* Restart suspended output.  */
-#define	TCIOFF	2		/* Send a STOP character.  */
-#define	TCION	3		/* Send a START character.  */