lib/sdk/crt/time/futime.c

   1 /*
   2  * COPYRIGHT:   LGPL, See LGPL.txt in the top level directory
   3  * PROJECT:     ReactOS CRT library
   4  * FILE:        lib/sdk/crt/time/futime.c
   5  * PURPOSE:     Implementation of _futime
   6  * PROGRAMERS:  Timo Kreuzer
   7  */
   8 #include <precomp.h>
   9 #define RC_INVOKED 1 // to prevent inline functions
  10 #include <time.h>
  11 #include <sys/utime.h>
  12 #include "bitsfixup.h"
  13
  14 HANDLE fdtoh(int fd);
  15
  16 /******************************************************************************
  17  * \name _futime
  18  * \brief Set a files modification time.
  19  * \param [out] ptimeb Pointer to a structure of type struct _timeb that
  20  *        recieves the current time.
  21  * \sa http://msdn.microsoft.com/en-us/library/95e68951.aspx
  22  */
  23 int
  24 _futime(int fd, struct _utimbuf *filetime)
  25 {
  26     HANDLE handle;
  27     FILETIME at, wt;
  28
  29     handle = fdtoh(fd);
  30     if (handle == INVALID_HANDLE_VALUE)
  31     {
  32         return -1;
  33     }
  34
  35     if (!filetime)
  36     {
  37         time_t currTime;
  38         _time(&currTime);
  39         RtlSecondsSince1970ToTime(currTime, (LARGE_INTEGER *)&at);
  40         wt = at;
  41     }
  42     else
  43     {
  44         RtlSecondsSince1970ToTime(filetime->actime, (LARGE_INTEGER *)&at);
  45         if (filetime->actime == filetime->modtime)
  46         {
  47             wt = at;
  48         }
  49         else
  50         {
  51             RtlSecondsSince1970ToTime(filetime->modtime, (LARGE_INTEGER *)&wt);
  52         }
  53     }
  54
  55     if (!SetFileTime(handle, NULL, &at, &wt))
  56     {
  57         __set_errno(GetLastError());
  58         return -1 ;
  59     }
  60
  61     return 0;
  62 }