time: Introduce function to check correctness of nanoseconds value

The valid_nanoseconds () static inline function has been introduced to
check if nanoseconds value is in the correct range - greater or equal to
zero and less than 1000000000.

The explicit #include <time.h> has been added to files where it was
missing.

The __syscall_slong_t type for ns has been used to avoid issues on x32.

Tested with:
- scripts/build-many-glibcs.py
- make PARALLELMFLAGS="-j12" && make PARALLELMFLAGS="-j12" xcheck on x86_64

12 files changed, 20 insertions, 17 deletions

diff --git a/sysdeps/htl/pt-cond-timedwait.c b/sysdeps/htl/pt-cond-timedwait.c
index cc5a9db37f..ff5631f7ab 100644
--- a/sysdeps/htl/pt-cond-timedwait.c
+++ b/sysdeps/htl/pt-cond-timedwait.c
@@ -20,6 +20,7 @@
 
 #include <pt-internal.h>
 #include <pthreadP.h>
+#include <time.h>
 
 extern int __pthread_cond_timedwait_internal (pthread_cond_t *cond,
 					      pthread_mutex_t *mutex,
@@ -74,7 +75,7 @@ __pthread_cond_timedwait_internal (pthread_cond_t *cond,
   int cancelled, oldtype, drain;
   clockid_t clock_id = __pthread_default_condattr.__clock;
 
-  if (abstime && (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000))
+  if (abstime && ! valid_nanoseconds (abstime->tv_nsec))
     return EINVAL;
 
   struct __pthread *self = _pthread_self ();
diff --git a/sysdeps/htl/pt-mutex-timedlock.c b/sysdeps/htl/pt-mutex-timedlock.c
index c8fe022613..c378557f49 100644
--- a/sysdeps/htl/pt-mutex-timedlock.c
+++ b/sysdeps/htl/pt-mutex-timedlock.c
@@ -18,6 +18,7 @@
 
 #include <pthread.h>
 #include <assert.h>
+#include <time.h>
 
 #include <pt-internal.h>
 
@@ -119,7 +120,7 @@ __pthread_mutex_timedlock_internal (struct __pthread_mutex *mutex,
 #endif
     assert (mutex->__owner);
 
-  if (abstime != NULL && (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000))
+  if (abstime != NULL && ! valid_nanoseconds (abstime->tv_nsec))
     return EINVAL;
 
   /* Add ourselves to the queue.  */
diff --git a/sysdeps/htl/pt-rwlock-timedrdlock.c b/sysdeps/htl/pt-rwlock-timedrdlock.c
index cdae8dfd3a..d64c7a7390 100644
--- a/sysdeps/htl/pt-rwlock-timedrdlock.c
+++ b/sysdeps/htl/pt-rwlock-timedrdlock.c
@@ -18,6 +18,7 @@
 
 #include <pthread.h>
 #include <assert.h>
+#include <time.h>
 
 #include <pt-internal.h>
 
@@ -60,7 +61,7 @@ __pthread_rwlock_timedrdlock_internal (struct __pthread_rwlock *rwlock,
   /* Better be blocked by a writer.  */
   assert (rwlock->__readers == 0);
 
-  if (abstime != NULL && (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000))
+  if (abstime != NULL && ! valid_nanoseconds (abstime->tv_nsec))
     return EINVAL;
 
   self = _pthread_self ();
diff --git a/sysdeps/htl/pt-rwlock-timedwrlock.c b/sysdeps/htl/pt-rwlock-timedwrlock.c
index 83a022afed..2316321d79 100644
--- a/sysdeps/htl/pt-rwlock-timedwrlock.c
+++ b/sysdeps/htl/pt-rwlock-timedwrlock.c
@@ -18,6 +18,7 @@
 
 #include <pthread.h>
 #include <assert.h>
+#include <time.h>
 
 #include <pt-internal.h>
 
@@ -46,7 +47,7 @@ __pthread_rwlock_timedwrlock_internal (struct __pthread_rwlock *rwlock,
 
   /* The lock is busy.  */
 
-  if (abstime != NULL && (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000))
+  if (abstime != NULL && ! valid_nanoseconds (abstime->tv_nsec))
     return EINVAL;
 
   self = _pthread_self ();
diff --git a/sysdeps/htl/sem-timedwait.c b/sysdeps/htl/sem-timedwait.c
index e2eeff4b8a..dfb0cb99d3 100644
--- a/sysdeps/htl/sem-timedwait.c
+++ b/sysdeps/htl/sem-timedwait.c
@@ -19,6 +19,7 @@
 #include <semaphore.h>
 #include <errno.h>
 #include <assert.h>
+#include <time.h>
 
 #include <pt-internal.h>
 
@@ -39,7 +40,7 @@ __sem_timedwait_internal (sem_t *restrict sem,
       return 0;
     }
 
-  if (timeout != NULL && (timeout->tv_nsec < 0 || timeout->tv_nsec >= 1000000000))
+  if (timeout != NULL && ! valid_nanoseconds (timeout->tv_nsec))
     {
       errno = EINVAL;
       return -1;
diff --git a/sysdeps/mach/hurd/htl/pt-hurd-cond-timedwait.c b/sysdeps/mach/hurd/htl/pt-hurd-cond-timedwait.c
index cf0de47bb5..aa3eb9884c 100644
--- a/sysdeps/mach/hurd/htl/pt-hurd-cond-timedwait.c
+++ b/sysdeps/mach/hurd/htl/pt-hurd-cond-timedwait.c
@@ -19,6 +19,7 @@
 #include <pthread.h>
 #include <assert.h>
 #include <hurd/signal.h>
+#include <time.h>
 
 #include <pt-internal.h>
 
@@ -69,7 +70,7 @@ __pthread_hurd_cond_timedwait_internal (pthread_cond_t *cond,
 
   assert (ss->intr_port == MACH_PORT_NULL);	/* Sanity check for signal bugs. */
 
-  if (abstime != NULL && (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000))
+  if (abstime != NULL && ! valid_nanoseconds (abstime->tv_nsec))
     return EINVAL;
 
   /* Atomically enqueue our thread on the condition variable's queue of
diff --git a/sysdeps/mach/nanosleep.c b/sysdeps/mach/nanosleep.c
index 67caa3ea8a..555251f842 100644
--- a/sysdeps/mach/nanosleep.c
+++ b/sysdeps/mach/nanosleep.c
@@ -30,8 +30,7 @@ __libc_nanosleep (const struct timespec *requested_time,
   struct timeval before, after;
 
   if (requested_time->tv_sec < 0
-      || requested_time->tv_nsec < 0
-      || requested_time->tv_nsec >= 1000000000)
+      || ! valid_nanoseconds (requested_time->tv_nsec))
     {
       errno = EINVAL;
       return -1;
diff --git a/sysdeps/pthread/timer_settime.c b/sysdeps/pthread/timer_settime.c
index 3d20495283..0fad4b1983 100644
--- a/sysdeps/pthread/timer_settime.c
+++ b/sysdeps/pthread/timer_settime.c
@@ -41,10 +41,8 @@ timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
       goto bail;
     }
 
-  if (value->it_interval.tv_nsec < 0
-      || value->it_interval.tv_nsec >= 1000000000
-      || value->it_value.tv_nsec < 0
-      || value->it_value.tv_nsec >= 1000000000)
+  if (! valid_nanoseconds (value->it_interval.tv_nsec)
+      || ! valid_nanoseconds (value->it_value.tv_nsec))
     {
       __set_errno (EINVAL);
       goto bail;
diff --git a/sysdeps/sparc/sparc32/lowlevellock.c b/sysdeps/sparc/sparc32/lowlevellock.c
index 25f3e6b1a0..074ecf0636 100644
--- a/sysdeps/sparc/sparc32/lowlevellock.c
+++ b/sysdeps/sparc/sparc32/lowlevellock.c
@@ -21,6 +21,7 @@
 #include <sysdep.h>
 #include <lowlevellock.h>
 #include <sys/time.h>
+#include <time.h>
 
 
 void
@@ -56,7 +57,7 @@ __lll_clocklock_wait (int *futex, clockid_t clockid,
                       const struct timespec *abstime, int private)
 {
   /* Reject invalid timeouts.  */
-  if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
+  if (! valid_nanoseconds (abstime->tv_nsec))
     return EINVAL;
 
   do
diff --git a/sysdeps/unix/clock_nanosleep.c b/sysdeps/unix/clock_nanosleep.c
index 95b4956b12..8514a439ee 100644
--- a/sysdeps/unix/clock_nanosleep.c
+++ b/sysdeps/unix/clock_nanosleep.c
@@ -30,8 +30,7 @@ __clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
 {
   struct timespec now;
 
-  if (__builtin_expect (req->tv_nsec, 0) < 0
-      || __builtin_expect (req->tv_nsec, 0) >= 1000000000)
+  if (! valid_nanoseconds (req->tv_nsec))
     return EINVAL;
 
   if (clock_id == CLOCK_THREAD_CPUTIME_ID)
diff --git a/sysdeps/unix/clock_settime.c b/sysdeps/unix/clock_settime.c
index 18d7c99864..54c917949f 100644
--- a/sysdeps/unix/clock_settime.c
+++ b/sysdeps/unix/clock_settime.c
@@ -27,7 +27,7 @@ __clock_settime (clockid_t clock_id, const struct timespec *tp)
   int retval = -1;
 
   /* Make sure the time cvalue is OK.  */
-  if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000)
+  if (! valid_nanoseconds (tp->tv_nsec))
     {
       __set_errno (EINVAL);
       return -1;
diff --git a/sysdeps/unix/sysv/linux/clock_settime.c b/sysdeps/unix/sysv/linux/clock_settime.c
index 54999d3008..bda113809b 100644
--- a/sysdeps/unix/sysv/linux/clock_settime.c
+++ b/sysdeps/unix/sysv/linux/clock_settime.c
@@ -26,7 +26,7 @@ int
 __clock_settime64 (clockid_t clock_id, const struct __timespec64 *tp)
 {
   /* Make sure the time cvalue is OK.  */
-  if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000)
+  if (! valid_nanoseconds (tp->tv_nsec))
     {
       __set_errno (EINVAL);
       return -1;