UTIMES(3P)                                          POSIX Programmer's Manual                                         UTIMES(3P)



PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (con-
       sult the corresponding Linux manual page for details of Linux behavior), or the  interface  may  not  be  implemented  on
       Linux.

NAME
       utimes - set file access and modification times (LEGACY)

SYNOPSIS
       #include <sys/time.h>

       int utimes(const char *path, const struct timeval times[2]);


DESCRIPTION
       The  utimes()  function  shall  set  the access and modification times of the file pointed to by the path argument to the
       value of the times argument. The utimes() function allows time specifications accurate to the microsecond.

       For utimes(), the times argument is an array of timeval structures. The first array member represents the date  and  time
       of  last access, and the second member represents the date and time of last modification. The times in the timeval struc-
       ture are measured in seconds and microseconds since the Epoch, although rounding toward the nearest second may occur.

       If the times argument is a null pointer, the access and modification times of the file shall be set to the current  time.
       The  effective  user  ID of the process shall match the owner of the file, or has write access to the file or appropriate
       privileges to use this call in this manner. Upon completion, utimes() shall mark the time of the last file status change,
       st_ctime, for update.

RETURN VALUE
       Upon  successful  completion, 0 shall be returned. Otherwise, -1 shall be returned and errno shall be set to indicate the
       error, and the file times shall not be affected.

ERRORS
       The utimes() function shall fail if:

       EACCES Search permission is denied by a component of the path prefix; or the times argument is a  null  pointer  and  the
              effective user ID of the process does not match the owner of the file and write access is denied.

       ELOOP  A loop exists in symbolic links encountered during resolution of the path argument.

       ENAMETOOLONG
              The length of the path argument exceeds {PATH_MAX} or a pathname component is longer than {NAME_MAX}.

       ENOENT A component of path does not name an existing file or path is an empty string.

       ENOTDIR
              A component of the path prefix is not a directory.

       EPERM  The  times  argument is not a null pointer and the calling process' effective user ID has write access to the file
              but does not match the owner of the file and the calling process does not have the appropriate privileges.

       EROFS  The file system containing the file is read-only.


       The utimes() function may fail if:

       ELOOP  More than {SYMLOOP_MAX} symbolic links were encountered during resolution of the path argument.

       ENAMETOOLONG
              Pathname resolution of a symbolic link produced an intermediate result whose length exceeds {PATH_MAX}.


       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       For applications portability, the utime() function should be used to set file access and modification  times  instead  of
       utimes().

RATIONALE
       None.

FUTURE DIRECTIONS
       This function may be withdrawn in a future version.

SEE ALSO
       utime(), the Base Definitions volume of IEEE Std 1003.1-2001, <sys/time.h>

COPYRIGHT
       Portions  of  this  text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for
       Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6,  Copy-
       right (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any
       discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open  Group
       Standard   is   the   referee   document.   The   original   Standard   can   be   obtained  online  at  http://www.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                    UTIMES(3P)