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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
license		=	bsd



%%	header

/**	@file	dk4dira.h	Directory operations with application support.
*/

#include "dk4dir.h"
#include "dk4app.h"

#ifdef __cplusplus
extern "C" {
#endif

/**	Open directory.
	@param	path	Directory path name.
	@param	om	Opening mode.
	@param	app	Application structure for diagnostics, may be NULL.
	@return	Pointer to new directory structure on success, NULL on error.
	On success use dk4dir_close() to destroy the directory
	structure.
*/
dk4_dir_t *
dk4dir_open_app(const dkChar *path, int om, dk4_app_t *app);

#ifdef __cplusplus
}
#endif


%%	module


#include "dk4conf.h"
#include "dk4const.h"

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

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

#include "dk4mem.h"
#include "dk4dira.h"
#include "dk4error.h"
#if DK4_ON_WINDOWS
#include "dk4maodd.h"
#include "dk4maodh.h"
#endif


$!trace-include



dk4_dir_t *
dk4dir_open_app(const dkChar *path, int om, dk4_app_t *app)
{
#if DK4_ON_WINDOWS
  dkChar	 eb1[8 * sizeof(dk4_um_t) + 16];
  dkChar	 eb2[8 * sizeof(dk4_um_t) + 16];
#endif
  dk4_er_t	 er;
  dk4_dir_t	*back	= NULL;
#if DK4_ON_WINDOWS
  DWORD		 le;
  int		 found;
  int		 res;
#endif
  if (NULL != path) {
    dk4error_init(&er);
    back = dk4dir_open(path, om, &er);
    if (NULL == back) {
      switch (er.ec) {
        case DK4_E_NOT_SUPPORTED : {
	  dk4app_log_base3(app, DK4_LL_ERROR, 144, 145, path);
	} break;
	case DK4_E_MEMORY_ALLOCATION_FAILED : {
	  dk4app_log_base3(app, DK4_LL_ERROR, 144, 103, path);
	} break;
	case DK4_E_MATH_OVERFLOW : {
	  dk4app_log_base3(app, DK4_LL_ERROR, 144, 146, path);
	} break;
	case DK4_E_BUFFER_TOO_SMALL : {
	  dk4app_log_base3(app, DK4_LL_ERROR, 144, 42, path);
	} break;
#if !DK4_ON_WINDOWS
	case DK4_E_OPENDIR_FAILED : {
	  switch (er.dt.iDetails1) {
#ifdef EACCES
	    case EACCES : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 138, path);
	    } break;
#endif
#ifdef EBADF
	    case EBADF : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 122, path);
	    } break;
#endif
#ifdef EMFILE
	    case EMFILE : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 114, path);
	    } break;
#endif
#ifdef ENFILE
	    case ENFILE : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 115, path);
	    } break;
#endif
#ifdef ENOENT
	    case ENOENT : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 51, path);
	    } break;
#endif
#ifdef ENOMEM
	    case ENOMEM : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 142, path);
	    } break;
#endif
#ifdef ENOTDIR
	    case ENOTDIR : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 150, path);
	    } break;
#endif
#ifdef ELOOP
	    case ELOOP : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 61, path);
	    } break;
#endif
#ifdef ENAMETOOLONG
	    case ENAMETOOLONG : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 65, path);
	    } break;
#endif
	    default : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 10, path);
	    } break;
	  }
	} break;
#endif
#if DK4_ON_WINDOWS
	case DK4_E_FINDFIRSTFILE_FAILED : {
	  le = er.dt.lDetails1;
	  found = 0;
	  if (ERROR_FILE_NOT_FOUND == le) {
	    dk4app_log_base3(app, DK4_LL_ERROR, 144, 147, path);
	    found = 1;
	  }
          if (ERROR_ACCESS_DENIED == le) {
	    dk4app_log_base3(app, DK4_LL_ERROR, 144, 138, path);
	    found = 1;
	  }
	  if (ERROR_PATH_NOT_FOUND == le) {
	    dk4app_log_base3(app, DK4_LL_ERROR, 144, 51, path);
	    found = 1;
	  }
	  if (ERROR_BAD_NET_NAME == le) {
	    dk4app_log_base3(app, DK4_LL_ERROR, 144, 74, path);
	    found = 1;
	  }
	  if (ERROR_BAD_NETPATH == le) {
	    dk4app_log_base3(app, DK4_LL_ERROR, 144, 75, path);
	    found = 1;
	  }
	  if (0 == found) {
	    res = dk4ma_write_decimal_unsigned(
	      eb1,DK4_SIZEOF(eb1,dkChar),(dk4_um_t)le,0,NULL
	    );
	    if (0 != res) {
	      res = dk4ma_write_hex_unsigned(
	        eb2, DK4_SIZEOF(eb2,dkChar), (dk4_um_t)le, 0, NULL
	      );
	    }
	    if (0 != res) {
	      dk4app_log_base7(app,DK4_LL_ERROR,144,69,70,71,path,eb1,eb2);
	    } else {
	      dk4app_log_base3(app, DK4_LL_ERROR, 144, 77, path);
	    }
	  }
	} break;
#endif
	default : {
	  dk4app_log_base3(app, DK4_LL_ERROR, 144, 10, path);
	} break;
      }
    }
  }
  return back;
}