UTIME(3)                    BSD Programmer's Manual                   UTIME(3)

NAME
     utime - set file times

SYNOPSIS
     #include <time.h>
     #include <utime.h>

     int
     utime(const char *file, const struct utimbuf *timep)

DESCRIPTION
     The utime() function sets the access and modification times of the named
     file from the structure addressed by timep.

     If timep is NULL, the file access and modification times are set to the
     current time.  The calling process's effective user ID must be the super-
     user or must match the owner of the file, or the calling process must
     have write permission for the file.

     If timep is not NULL, the file's access and modification times are set to
     the specified values.  The calling process's effective user ID must match
     the owner of the file or must be the super-user.  The utimbuf structure
     has the following form:

           struct utimbuf {
                   time_t  actime;
                   time_t  modtime;
           };

     The access time of the file is taken from the actime member and the modi-
     fication time is taken from the modtime member.

ERRORS
     Utime() will fail if:

     [EACCES]      Search permission is denied for a component of the path
                   prefix; or the timep argument is NULL and the effective us-
                   er ID of the process does not match the owner of the file,
                   and is not the super-user, and write access is denied.

     [EFAULT]      File or timep points outside the process's allocated ad-
                   dress space.

     [EINVAL]      The pathname contains a character with the high-order bit
                   set.

     [EIO]         An I/O error occurred while reading or writing the affected
                   inode.

     [ELOOP]       Too many symbolic links were encountered in translating the
                   pathname.

     [ENAMETOOLONG]
                   A component of a pathname exceeded 255 characters, or an
                   entire path name exceeded 1023 characters.

     [ENOENT]      The named file does not exist.

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

     [EPERM]       The timep argument is not NULL and the calling process's
                   effective user ID does not match the owner of the file and

                   is not the super-user.

     [EROFS]       The file system containing the file is mounted read-only.

SEE ALSO
     utimes(2),  stat(2)

STANDARDS
     The utime function conforms to IEEE Std1003.1-1990 (``POSIX'').

BSDI BSD/386                    March 26, 1993                               2