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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: dk4getcwd8.ctr
*/

/**	@file dk4getcwd8.c The dk4getcwd8 module.
*/


#line 77 "dk4getcwd8.ctr"

#include "dk4conf.h"
#include "dk4getcwd8.h"

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

#if DK4_HAVE_UNISTD_H
#ifndef UNISTD_H_INCLUDED
#include <unistd.h>
#define	UNISTD_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_STDLIB_H
#ifndef STDLIB_H_INCLUDED
#include <stdlib.h>
#define	STDLIB_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_DIRECT_H
#ifndef DIRECT_H_INCLUDED
#include <direct.h>
#define DIRECT_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_ERRNO_H
#ifndef ERRNO_H_INCLUDED
#include <errno.h>
#define	ERRNO_H_INCLUDED 1
#endif
#endif

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

#ifndef	DK4MEM_H_INCLUDED
#include "dk4mem.h"
#endif

#ifndef	DK4STR8_H_INCLUDED
#include "dk4str8.h"
#endif

#ifndef	DK4MPL_H_INCLUDED
#include "dk4mpl.h"
#endif





#line 138 "dk4getcwd8.ctr"



int
dk4getcwd_c8(char *dptr, size_t sz, dk4_er_t *erp)
{
  int		 back = 0;
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(0 < sz);
#endif
  if ((NULL != dptr) && (0 < sz)) { *dptr = '\0'; }
  if ((NULL != dptr) && (0 < sz)) {
#if DK4_ON_WINDOWS
#if DK4_WIN_AVOID_CRT || DK4_WIN_DENY_CRT
    DWORD	dwSz;
    DWORD	dwRes;
    dwSz = (DWORD)sz;
    if ((dk4_um_t)sz > (dk4_um_t)0xFFFFFFFFUL) { dwSz = (DWORD)0xFFFFFFFFUL; }
    dwRes = GetCurrentDirectoryA(dwSz, dptr);
    if (0 < dwRes) {
      if (dwRes < dwSz) {
	back = 1;
      } else {
	dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
      }
    } else {
      dk4error_set_ldetails(erp, DK4_E_SYSTEM, GetLastError());
    }
#else
#if DK4_HAVE__GETCWD
    int isz;
    errno = 0;
    isz = (int)sz;
    if((dk4_um_t)sz > (dk4_um_t)(INT_MAX)) { isz = INT_MAX; }
    if (NULL != _getcwd(dptr, isz)) {
      back = 1;
    } else {
      dk4error_set_idetails(erp, DK4_E_SYSTEM, errno);
    }
#else
#if DK4_HAVE_GETCWD
    errno = 0;
    if (NULL != getcwd(dptr, sz)) {
      back = 1;
    } else {
      dk4error_set_idetails(erp, DK4_E_SYSTEM, errno);
    }
#else
    DWORD	dwSz;
    DWORD	dwRes;
    dwSz = (DWORD)sz;
    if ((dk4_um_t)sz > (dk4_um_t)0xFFFFFFUL) { dwSz = (DWORD)0xFFFFFFFFUL; }
    dwRes = GetCurrentDirectoryA(dwSz, dptr);
    if (0 < dwRes) {
      if (dwRes < dwSz) {
	back = 1;
      } else {
	dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
      }
    } else {
      dk4error_set_ldetails(erp, DK4_E_SYSTEM, GetLastError());
    }
#endif
#endif
#endif
#else
    errno = 0;
    if (NULL != getcwd(dptr, sz)) {
      back = 1;
    } else {
      dk4error_set_idetails(erp, DK4_E_SYSTEM, errno);
    }
#endif
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}



char *
dk4getcwd_c8_dup(dk4_er_t *erp)
{
  char		 buf[DK4_MAX_PATH];
  char		*back	= NULL;
  size_t	 szbuf 	= DK4_SIZEOF(buf,char);

  if (0 != dk4getcwd_c8(buf, szbuf, erp)) {
    back = dk4str8_dup(buf, erp);
  }
  return back;
}