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path: root/support/dktools/dk4ufiwc.c
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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4ufiwc.ctr
*/

/**	@file dk4ufiwc.c The dk4ufiwc module.
*/


#line 109 "dk4ufiwc.ctr"

#include "dk4conf.h"

#if DK4_ON_WINDOWS
#ifndef WINDOWS_H_INCLUDED
#include <windows.h>
#define	WINDOWS_H_INCLUDED 1
#endif
#endif

#if	DK4_HAVE_ASSERT_H
#ifndef	ASSERT_H_INCLUDED
#include <assert.h>
#define	ASSERT_H_INCLUDED 1
#endif
#endif

#include "dk4ufiwc.h"
#include "dk4unused.h"



int
dk4ufi_get_wc(
#if DK4_ON_WINDOWS
  dk4_ufi_t	*dptr,
  const wchar_t	*fn,
#else
  dk4_ufi_t	* DK4_ARG_UNUSED(dptr),
  const wchar_t	* DK4_ARG_UNUSED(fn),
#endif
  dk4_er_t	*erp
)
{
#if DK4_ON_WINDOWS
  BY_HANDLE_FILE_INFORMATION	bhfi;
  WIN32_FIND_DATAW		ffdata;
  HANDLE			han;
  DWORD				dwattr;
  int				i;
  int				back = 0;
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(NULL != fn);
#endif
  if ((NULL != dptr) && (NULL != fn)) {
    dwattr = GetFileAttributesW(fn);
    if (INVALID_FILE_ATTRIBUTES == dwattr) {
      han = FindFirstFileW(fn, &ffdata);
      if (INVALID_HANDLE_VALUE != han) {
        dwattr = ffdata.dwFileAttributes;
        FindClose(han);
      }
    }
    if (INVALID_FILE_ATTRIBUTES != dwattr) {
      if (0 != (FILE_ATTRIBUTE_DIRECTORY & dwattr)) {
        dwattr |= FILE_FLAG_BACKUP_SEMANTICS;
      }
      for (i = 0; ((2 > i) && (0 == back)); i++) {
        han = CreateFileW(
          fn,
	  ((0 == i) ? (0) : (GENERIC_READ)),
	  (FILE_SHARE_READ | FILE_SHARE_WRITE),
	  NULL,
	  OPEN_EXISTING,
	  dwattr,
	  NULL
        );
        if (INVALID_HANDLE_VALUE != han) {
          if (GetFileInformationByHandle(han, &bhfi)) {
	    back = 1;
	    dptr->ser = bhfi.dwVolumeSerialNumber;
	    dptr->inh = bhfi.nFileIndexHigh;
	    dptr->inl = bhfi.nFileIndexLow;
	  } else {
	    if (1 == i) {
	      /* ERROR */
	      dk4error_set_ldetails(
	        erp, DK4_E_FILE_INFORMATION_FAILED,
	        (long)((unsigned long)GetLastError())
	      );
	    }
	  }
        } else {
          if (1 == i) {
	    /* ERROR */
	    dk4error_set_ldetails(
	      erp, DK4_E_CREATE_FILE_FAILED,
	      (long)((unsigned long)GetLastError())
	    );
	  }
        }
      }
    } else {
      dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
#else
  DK4_UNUSED_ARG(dptr)
  DK4_UNUSED_ARG(fn)
  dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
  return 0;
#endif
}



int
dk4ufi_get_l_wc(
#if DK4_ON_WINDOWS
  dk4_ufi_t	*dptr,
  const wchar_t	*fn,
#else
  dk4_ufi_t	* DK4_ARG_UNUSED(dptr),
  const wchar_t	* DK4_ARG_UNUSED(fn),
#endif
  dk4_er_t	*erp
)
{
#if DK4_ON_WINDOWS
  BY_HANDLE_FILE_INFORMATION	bhfi;
  WIN32_FIND_DATAW		ffdata;
  HANDLE			han;
  DWORD				dwattr;
  int				i;
  int				back = 0;
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(NULL != fn);
#endif
  if ((NULL != dptr) && (NULL != fn)) {
    dwattr = GetFileAttributesW(fn);
    if (INVALID_FILE_ATTRIBUTES == dwattr) {
      han = FindFirstFileW(fn, &ffdata);
      if (INVALID_HANDLE_VALUE != han) {
        dwattr = ffdata.dwFileAttributes;
        FindClose(han);
      }
    }
    if (INVALID_FILE_ATTRIBUTES != dwattr) {
      if (0 != (FILE_ATTRIBUTE_DIRECTORY & dwattr)) {
        dwattr |= FILE_FLAG_BACKUP_SEMANTICS;
      }
      dwattr |= FILE_FLAG_OPEN_REPARSE_POINT;
      for (i = 0; ((2 > i) && (0 == back)); i++) {
        han = CreateFileW(
          fn,
	  ((0 == i) ? (0) : (GENERIC_READ)),
	  (FILE_SHARE_READ | FILE_SHARE_WRITE),
	  NULL,
	  OPEN_EXISTING,
	  dwattr,
	  NULL
        );
        if (INVALID_HANDLE_VALUE != han) {
          if (GetFileInformationByHandle(han, &bhfi)) {
	    back = 1;
	    dptr->ser = bhfi.dwVolumeSerialNumber;
	    dptr->inh = bhfi.nFileIndexHigh;
	    dptr->inl = bhfi.nFileIndexLow;
	  } else {
	    if (1 == i) {
	      /* ERROR */
	      dk4error_set_ldetails(
	        erp, DK4_E_FILE_INFORMATION_FAILED,
	        (long)((unsigned long)GetLastError())
	      );
	    }
	  }
        } else {
          if (1 == i) {
	    /* ERROR */
	    dk4error_set_ldetails(
	      erp, DK4_E_CREATE_FILE_FAILED,
	      (long)((unsigned long)GetLastError())
	    );
	  }
        }
      }
    } else {
      dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
#else
  DK4_UNUSED_ARG(dptr)
  DK4_UNUSED_ARG(fn)
  dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
  return 0;
#endif
}