compiler/clib/utime.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <errno.h>
   7 #include <sys/time.h>
   8
   9 /*****************************************************************************
  10
  11     NAME */
  12
  13 #include <utime.h>
  14
  15         int utime(
  16
  17 /*  SYNOPSIS */
  18         const char *filename,
  19         struct utimbuf *buf)
  20
  21 /*  FUNCTION
  22         Change last access and last modification time of the given file to
  23         times specified in given utimbuf structure. If buf is NULL, the
  24         current time will be used instead.
  25
  26         The utimbuf structure contains of two fields:
  27
  28         time_t actime;  - last access time
  29         time_t modtime; - last modification time
  30
  31     INPUTS
  32         filename - Name of the file
  33         buf - Pointer to utimbuf structure describing specified time.
  34
  35     RESULT
  36         0 on success and -1 on error. If an error occurred, the global
  37         variable errno is set.
  38
  39     NOTES
  40         This function can be used to set access and modification times with
  41         a resolution of 1 second, use utimes() if you need better precision.
  42
  43     EXAMPLE
  44
  45     BUGS
  46         Since AROS has no notion of last access time, actime field is silently
  47         ignored, only modification time of the file is set.
  48
  49     SEE ALSO
  50         utimes()
  51
  52     INTERNALS
  53
  54 ******************************************************************************/
  55 {
  56     struct timeval ts[2];
  57
  58     if( buf == NULL )
  59     {
  60         time_t tt = time( NULL );
  61
  62         ts[0].tv_sec = tt;
  63         ts[1].tv_sec = tt;
  64     }
  65     else
  66     {
  67         ts[0].tv_sec = buf->actime;
  68         ts[1].tv_sec = buf->modtime;
  69     }
  70
  71     ts[0].tv_usec = 0;
  72     ts[1].tv_usec = 0;
  73
  74     return utimes(filename, ts);
  75 }