%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
SPDX-License-Identifier:	BSD-3-Clause



%%	header

/**	@file	dk4getcwdd.h	Get current working directoy in dkChar.
*/

#ifndef	DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif

#ifndef DK4ERROR_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include <libdk4base/dk4error.h>
#else
#include <dktools-4/dk4error.h>
#endif
#endif

#ifdef __cplusplus
extern "C" {
#endif

/**	Find current working directory.
	@param	dptr	Destination buffer pointer.
	@param	sz	Buffer size.
	@param	erp	Error report, may be NULL.
	@return	1 on success, 0 on error.
*/
int
dk4getcwd(dkChar *dptr, size_t sz, dk4_er_t *erp);

/**	Find current working directory, return string in newly
	allocated memory.
	@param	erp	Error report, may be NULL.
	@return	Valid pointer to newly allocated memory containing
	the directory name on success, NULL on error.
	On success, use dk4mem_free() to release the memory when done
	with it.

	Error codes:
	- DK4_E_SYSTEM<br>
	  with errno in iDetails if getcwd() or _getcwd() failed
	  or GetLastError() result in iDetails if GetCurrentDirectoryA()
	  failed.
	- DK4_E_INVALID_ARGUMENTS<br>
	  if src is a NULL pointer,
	- DK4_E_MATH_OVERFLOW<br>
	  on mathematical overflow in size calculation,
	- DK4_E_MEMORY<br>
	  if no memory is available.
*/
dkChar *
dk4getcwd_dup(dk4_er_t *erp);

#ifdef __cplusplus
}
#endif


%%	module

#include "dk4conf.h"
#include <libdk4c/dk4getcwdd.h>

#if DK4_CHAR_SIZE > 1
#include <libdk4c/dk4getcwdw.h>
#else
#include <libdk4c/dk4getcwd8.h>
#endif

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


$!trace-include



int
dk4getcwd(dkChar *dptr, size_t sz, dk4_er_t *erp)
{
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(0 < sz);
#endif
#if DK4_CHAR_SIZE > 1
  return (
    dk4getcwd_wc(dptr, sz, erp)
  );
#else
  return (
    dk4getcwd_c8(dptr, sz, erp)
  );
#endif
}



dkChar *
dk4getcwd_dup(dk4_er_t *erp)
{
#if DK4_CHAR_SIZE > 1
  return (
    dk4getcwd_wc_dup(erp)
  );
#else
  return (
    dk4getcwd_c8_dup(erp)
  );
#endif
}