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%%	options

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

%%	header

/**	@file	dk4fopda.h	File open.
*/

#include "dk4app.h"
#include "dk4fopc8.h"

#ifndef DK4FOPT_H_INCLUDED
#include "dk4fopt.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

/**	Open a file after doing security checks.
	CRT on Windows: Required.
	@param	name	File name.
	@param	mode	Opening mode.
	@param	tests	Set of tests, see dk4fopc8.h.
	@param	app	Application structure for diagnostics, may be NULL.
*/
FILE *
dk4fopen_app(const dkChar *name, const dkChar *mode, int tests, dk4_app_t *app);

#ifdef __cplusplus
}
#endif

%%	module


#if 0
#define _POSIX_C_SOURCE	200112L
#define	_XOPEN_SOURCE	600
#ifdef	_GNU_SOURCE
#undef	_GNU_SOURCE
#endif
#endif


#include "dk4conf.h"

#if DK4_HAVE_STRING_H
#include <string.h>
#endif

#if DK4_HAVE_ERRNO_H
#include <errno.h>
#endif

#include "dk4const.h"
#include "dk4fopd.h"
#include "dk4fopda.h"
#include "dk4error.h"



FILE *
dk4fopen_app(const dkChar *name, const dkChar *mode, int tests, dk4_app_t *app)
{
  dk4_er_t	 er;
  FILE		*back	= NULL;
  if ((NULL != name) && (NULL != mode)) {
    dk4error_init(&er);
    back = dk4fopen(name, mode, tests, &er);
    if (NULL == back) {
      switch (er.ec) {
        case DK4_E_INVALID_ARGUMENTS: {
          /* Bug, this function should not be called with name or mode NULL */
        } break;
        case DK4_E_SYNTAX: {
          /* ERROR: File name does not refer to regular file */
	  dk4app_log_base3(app, DK4_LL_ERROR, 108, 109, name);
        } break;
        case DK4_E_SEC_CHECK: {
	  if (0 != (DK4_FOPEN_SC_IS_REGULAR & er.dt.iDetails1)) {
	    /* ERROR: Not a regular file */
	    dk4app_log_base3(app, DK4_LL_ERROR, 108, 109, name);
	  }
	  if (0 != (DK4_FOPEN_SC_WR_SYMLINK_IN_PATH & er.dt.iDetails1)) {
	    /* ERROR: Path contains symbolic link */
	    dk4app_log_base3(app, DK4_LL_ERROR, 108, 110, name);
	  }
	  if (0 != (DK4_FOPEN_SC_WR_PATH_IS_SYMLINK & er.dt.iDetails1)) {
	    /* ERROR: Path is a symbolic link */
	    dk4app_log_base3(app, DK4_LL_ERROR, 108, 111, name);
	  }
	  if (0 != (DK4_FOPEN_SC_WR_SYMLINK_OWNER & er.dt.iDetails1)) {
	    /* ERROR: Symbolic link owner is not file owner */
	    dk4app_log_base3(app, DK4_LL_ERROR, 108, 112, name);
	  }
        } break;
        case DK4_E_OPEN_WRITE_FAILED: case DK4_E_OPEN_READ_FAILED: {
	  switch (er.dt.iDetails1) {
#ifdef EACCES
	    case EACCES : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 55, name);
	    } break;
#endif
#ifdef EINTR
	    case EINTR : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 113, name);
	    } break;
#endif
#ifdef EISDIR
	    case EISDIR : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 52, name);
	    } break;
#endif
#ifdef ELOOP
	    case ELOOP : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 61, name);
	    } break;
#endif
#ifdef EMFILE
	    case EMFILE : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 114, name);
	    } break;
#endif
#ifdef ENAMETOOLONG
	    case ENAMETOOLONG : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 65, name);
	    } break;
#endif
#ifdef ENFILE
	    case ENFILE : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 115, name);
	    } break;
#endif
#ifdef ENOENT
	    case ENOENT : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 51, name);
	    } break;
#endif
#ifdef ENOSPC
	    case ENOSPC : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 60, name);
	    } break;
#endif
#ifdef ENOTDIR
	    case ENOTDIR : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 150, name);
	    } break;
#endif
#ifdef ENXIO
	    case ENXIO : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 116, name);
	    } break;
#endif
#ifdef EOVERFLOW
	    case EOVERFLOW : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 117, name);
	    } break;
#endif
#ifdef EROFS
	    case EROFS : {
	      dk4app_log_base3(app, DK4_LL_ERROR, 108, 56, name);
	    } break;
#endif
	    default: {
	      dk4app_log_with_errno(
	        app, DK4_LL_ERROR, 108, 79, 80, 108, 77,
		name, er.dt.iDetails1
	      );
	    } break;
	  }
	} break;
      }
    }
  }
  return back;
}