///////////////////////////////////////////////////////////////////////////////
//
// universal tool kit (utk)
// file resize using open and ftruncate
//
// Copyright (C) 2009 Daniel Adler <dadler@uni-goettingen.de>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////

#include "utk_file_resize.hpp"

#include <fcntl.h>
#include <unistd.h>

namespace utk {

int file_resize(const char* path, fsize_t newfsize)
{
  int fd = open(path, O_RDWR|O_CREAT, 0644);
  if (fd == -1) return -1;
  int err = ftruncate(fd, newfsize);
  close(fd);
  return err;
}

}

