* cygwin.din (futimens): Export.

	(utimensat): Export.
	* fhandler.cc (fhandler_base::utimens): Replace fhandler_base::utimes.
	Call utimens_fs.
	* fhandler.h (class fhandler_base): Declare utimens_fs instead of
	utimes_fs, utimens instead of utimes.
	(class fhandler_disk_file): Declare utimens instead of utimes.
	* fhandler_disk_file.cc (fhandler_disk_file::utimens): Replace
	fhandler_disk_file::utimes.
	(fhandler_base::utimens_fs): Replace fhandler_base::utimes_fs.
	Implement tv_nsec handling according to SUSv4.
	* syscalls.cc (utimensat): New function.
	* times.cc (timespec_to_filetime): New function.
	(timeval_to_timespec): New function.
	(utimens_worker): Replace utimes_worker.
	(utimes): Convert timeval to timespec and call utimens_worker.
	(lutimes): Ditto.
	(futimens): Take over implementation from futimes.
	(futimes): Convert timeval to timespec and call futimens.
	* winsup.h (timespec_to_filetime): Declare.
	* include/cygwin/version.h: Bump API minor number.
	* posix.sgml: Add SUSv4 section.  Add futimens and utimensat to it.

1 files changed, 19 insertions, 0 deletions

diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc
index 1a2572186..7da929efa 100644
--- a/winsup/cygwin/syscalls.cc
+++ b/winsup/cygwin/syscalls.cc
@@ -3631,6 +3631,25 @@ fstatat (int dirfd, const char *pathname, struct __stat64 *st, int flags)
   return (flags & AT_SYMLINK_NOFOLLOW) ? lstat64 (path, st) : stat64 (path, st);
 }
 
+extern int utimens_worker (path_conv &, const struct timespec *);
+
+extern "C" int
+utimensat (int dirfd, const char *pathname, const struct timespec *times,
+	   int flags)
+{
+  myfault efault;
+  if (efault.faulted (EFAULT))
+    return -1;
+  tmp_pathbuf tp;
+  char *path = tp.c_get ();
+  if (gen_full_path_at (path, dirfd, pathname))
+    return -1;
+  path_conv win32 (path, PC_POSIX | ((flags & AT_SYMLINK_NOFOLLOW)
+				     ? PC_SYM_NOFOLLOW : PC_SYM_FOLLOW),
+		   stat_suffixes);
+  return utimens_worker (win32, times);
+}
+
 extern "C" int
 futimesat (int dirfd, const char *pathname, const struct timeval *times)
 {