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 <time.h>
   8 #include <sys/time.h>
   9
  10 /*****************************************************************************
  11
  12     NAME */
  13
  14 #include <utime.h>
  15
  16         int utime(
  17
  18 /*  SYNOPSIS */
  19         const char *filename,
  20         const struct utimbuf *buf)
  21
  22 /*  FUNCTION
  23         Change last access and last modification time of the given file to
  24         times specified in given utimbuf structure. If buf is NULL, the
  25         current time will be used instead.
  26
  27         The utimbuf structure contains of two fields:
  28
  29         time_t actime;  - last access time
  30         time_t modtime; - last modification time
  31
  32     INPUTS
  33         filename - Name of the file
  34         buf - Pointer to utimbuf structure describing specified time.
  35
  36     RESULT
  37         0 on success and -1 on error. If an error occurred, the global
  38         variable errno is set.
  39
  40     NOTES
  41         This function can be used to set access and modification times with
  42         a resolution of 1 second, use utimes() if you need better precision.
  43
  44     EXAMPLE
  45
  46     BUGS
  47         Since AROS has no notion of last access time, actime field is silently
  48         ignored, only modification time of the file is set.
  49
  50     SEE ALSO
  51         utimes()
  52
  53     INTERNALS
  54
  55 ******************************************************************************/
  56 {
  57     struct timeval ts[2];
  58
  59     if( buf == NULL )
  60     {
  61         time_t tt = time( NULL );
  62
  63         ts[0].tv_sec = tt;
  64         ts[1].tv_sec = tt;
  65     }
  66     else
  67     {
  68         ts[0].tv_sec = buf->actime;
  69         ts[1].tv_sec = buf->modtime;
  70     }
  71
  72     ts[0].tv_usec = 0;
  73     ts[1].tv_usec = 0;
  74
  75     return utimes(filename, ts);
  76 }