y2038: linux: Provide __lutimes64 implementation

This conversion patch for supporting 64 bit time for lutimes mostly differs from
the work performed for futimes (when providing __futimes64) with adding the
AT_SYMLINK_NOFOLLOW flag to utimensat.
It also supports passing file name instead of file descriptor number, but this
is not relevant for utimensat used to implement it.

All the design and conversion decisions are exactly the same as for futimens
conversion.

1 files changed, 24 insertions, 13 deletions

diff --git a/sysdeps/unix/sysv/linux/lutimes.c b/sysdeps/unix/sysv/linux/lutimes.c
index 59ab1f065a..778e4e61d8 100644
--- a/sysdeps/unix/sysv/linux/lutimes.c
+++ b/sysdeps/unix/sysv/linux/lutimes.c
@@ -20,25 +20,36 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <time.h>
-#include <sys/time.h>
-#include <sysdep.h>
 
+int
+__lutimes64 (const char *file, const struct __timeval64 tvp64[2])
+{
+  struct __timespec64 ts64[2];
+  if (tvp64 != NULL)
+    {
+      ts64[0] = timeval64_to_timespec64 (tvp64[0]);
+      ts64[1] = timeval64_to_timespec64 (tvp64[1]);
+    }
+
+  return __utimensat64_helper (AT_FDCWD, file, tvp64 ? &ts64[0] : NULL,
+                               AT_SYMLINK_NOFOLLOW);
+}
+
+#if __TIMESIZE != 64
+libc_hidden_def (__lutimes64)
 
 int
-lutimes (const char *file, const struct timeval tvp[2])
+__lutimes (const char *file, const struct timeval tvp[2])
 {
-  /* The system call espects timespec, not timeval.  */
-  struct timespec ts[2];
+  struct __timeval64 tv64[2];
+
   if (tvp != NULL)
     {
-      if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
-          || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
-	return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
-
-      TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]);
-      TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]);
+      tv64[0] = valid_timeval_to_timeval64 (tvp[0]);
+      tv64[1] = valid_timeval_to_timeval64 (tvp[1]);
     }
 
-  return INLINE_SYSCALL (utimensat, 4, AT_FDCWD, file, tvp ? ts : NULL,
-			 AT_SYMLINK_NOFOLLOW);
+  return __lutimes64 (file, tvp ? &tv64[0] : NULL);
 }
+#endif
+weak_alias (__lutimes, lutimes)