- timeval[0].tv_sec = timespec[0].tv_sec;
- timeval[0].tv_usec = timespec[0].tv_nsec / 1000;
- timeval[1].tv_sec = timespec[1].tv_sec;
- timeval[1].tv_usec = timespec[1].tv_nsec / 1000;
- return utimes (file, timeval);
+ struct timeval const *t;
+ if (timespec)
+ {
+ timeval[0].tv_sec = timespec[0].tv_sec;
+ timeval[0].tv_usec = timespec[0].tv_nsec / 1000;
+ timeval[1].tv_sec = timespec[1].tv_sec;
+ timeval[1].tv_usec = timespec[1].tv_nsec / 1000;
+ t = timeval;
+ }
+ else
+ t = NULL;
+
+
+ if (fd < 0)
+ {
+# if HAVE_FUTIMESAT
+ return futimesat (AT_FDCWD, file, t);
+# endif
+ }
+ else
+ {
+ /* If futimesat or futimes fails here, don't try to speed things
+ up by returning right away. glibc can incorrectly fail with
+ errno == ENOENT if /proc isn't mounted. Also, Mandrake 10.0
+ in high security mode doesn't allow ordinary users to read
+ /proc/self, so glibc incorrectly fails with errno == EACCES.
+ If errno == EIO, EPERM, or EROFS, it's probably safe to fail
+ right away, but these cases are rare enough that they're not
+ worth optimizing, and who knows what other messed-up systems
+ are out there? So play it safe and fall back on the code
+ below. */
+# if HAVE_FUTIMESAT
+ if (futimesat (fd, NULL, t) == 0)
+ return 0;
+# elif HAVE_FUTIMES
+ if (futimes (fd, t) == 0)
+ return 0;
+# endif
+ }
+#endif
+
+ if (!file)
+ {
+#if ! (HAVE_FUTIMESAT || (HAVE_WORKING_UTIMES && HAVE_FUTIMES))
+ errno = ENOSYS;
+#endif
+
+ /* Prefer EBADF to ENOSYS if both error numbers apply. */
+ if (errno == ENOSYS)
+ {
+ int fd2 = dup (fd);
+ int dup_errno = errno;
+ if (0 <= fd2)
+ close (fd2);
+ errno = (fd2 < 0 && dup_errno == EBADF ? EBADF : ENOSYS);
+ }
+
+ return -1;
+ }
+
+#if HAVE_WORKING_UTIMES
+ return utimes (file, t);