initial import

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diff --git a/time/sys/time.h b/time/sys/time.h
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+/* Copyright (C) 1991, 1992, 1993, 1994 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, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _SYS_TIME_H
+
+#define _SYS_TIME_H	1
+#include <features.h>
+
+#include <time.h>
+
+__BEGIN_DECLS
+
+/* A time value that is accurate to the nearest
+   microsecond but also has a range of years.  */
+struct timeval
+  {
+    int tv_sec;			/* Seconds.  */
+    int tv_usec;		/* Microseconds.  */
+  };
+
+/* POSIX.4 structure for a time value.  This is like a `struct timeval' but
+   has nanoseconds instead of microseconds.  */
+struct timespec
+  {
+    long int ts_sec;		/* Seconds.  */
+    long int ts_nsec;		/* Nanoseconds.  */
+  };
+
+/* Macros for converting between `struct timeval' and `struct timespec'.  */
+#define TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
+        (ts)->ts_sec = (tv)->tv_sec;                                    \
+        (ts)->ts_nsec = (tv)->tv_usec * 1000;                           \
+}
+#define TIMESPEC_TO_TIMEVAL(tv, ts) {                                   \
+        (tv)->tv_sec = (ts)->ts_sec;                                    \
+        (tv)->tv_usec = (ts)->ts_nsec / 1000;                           \
+}
+
+
+/* Structure crudely representing a timezone.
+   This is obsolete and should never be used.  */
+struct timezone
+  {
+    int tz_minuteswest;		/* Minutes west of GMT.  */
+    int tz_dsttime;		/* Nonzero if DST is ever in effect.  */
+  };
+
+/* Get the current time of day and timezone information,
+   putting it into *TV and *TZ.  If TZ is NULL, *TZ is not filled.
+   Returns 0 on success, -1 on errors.
+   NOTE: This form of timezone information is obsolete.
+   Use the functions and variables declared in <time.h> instead.  */
+extern int __gettimeofday __P ((struct timeval *__tv,
+				struct timezone *__tz));
+extern int gettimeofday __P ((struct timeval *__tv,
+			      struct timezone *__tz));
+
+/* Set the current time of day and timezone information.
+   This call is restricted to the super-user.  */
+extern int __settimeofday __P ((__const struct timeval *__tv,
+				__const struct timezone *__tz));
+extern int settimeofday __P ((__const struct timeval *__tv,
+			      __const struct timezone *__tz));
+
+/* Adjust the current time of day by the amount in DELTA.
+   If OLDDELTA is not NULL, it is filled in with the amount
+   of time adjustment remaining to be done from the last `adjtime' call.
+   This call is restricted to the super-user.  */
+extern int __adjtime __P ((__const struct timeval *__delta,
+			   struct timeval *__olddelta));
+extern int adjtime __P ((__const struct timeval *__delta,
+			 struct timeval *__olddelta));
+
+
+/* Values for the first argument to `getitimer' and `setitimer'.  */
+enum __itimer_which
+  {
+    /* Timers run in real time.  */
+    ITIMER_REAL = 0,
+    /* Timers run only when the process is executing.  */
+    ITIMER_VIRTUAL = 1,
+    /* Timers run when the process is executing and when
+       the system is executing on behalf of the process.  */
+    ITIMER_PROF = 2
+  };
+
+/* Type of the second argument to `getitimer' and
+   the second and third arguments `setitimer'.  */
+struct itimerval
+  {
+    /* Value to put into `it_value' when the timer expires.  */
+    struct timeval it_interval;
+    /* Time to the next timer expiration.  */
+    struct timeval it_value;
+  };
+
+/* Set *VALUE to the current setting of timer WHICH.
+   Return 0 on success, -1 on errors.  */
+extern int __getitimer __P ((enum __itimer_which __which,
+			     struct itimerval *__value));
+extern int getitimer __P ((enum __itimer_which __which,
+			   struct itimerval *__value));
+
+/* Set the timer WHICH to *NEW.  If OLD is not NULL,
+   set *OLD to the old value of timer WHICH.
+   Returns 0 on success, -1 on errors.  */
+extern int __setitimer __P ((enum __itimer_which __which,
+			     struct itimerval *__new,
+			     struct itimerval *__old));
+extern int setitimer __P ((enum __itimer_which __which,
+			   struct itimerval *__new,
+			   struct itimerval *__old));
+
+/* Change the access time of FILE to TVP[0] and
+   the modification time of FILE to TVP[1].  */
+extern int __utimes __P ((__const char *__file, struct timeval __tvp[2]));
+extern int utimes __P ((__const char *__file, struct timeval __tvp[2]));
+
+
+/* Convenience macros for operations on timevals.
+   NOTE: `timercmp' does not work for >= or <=.  */
+#define	timerisset(tvp)		((tvp)->tv_sec || (tvp)->tv_usec)
+#define	timercmp(tvp, uvp, CMP)	\
+  ((tvp)->tv_sec CMP (uvp)->tv_sec || \
+   (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec CMP (uvp)->tv_usec)
+#define	timerclear(tvp)		((tvp)->tv_sec = (tvp)->tv_usec = 0)
+
+
+
+__END_DECLS
+
+#endif /* sys/time.h */