/******************************************************************************
 ** Filename: efio.c
 ** Purpose:  Utility I/O routines
 ** Author:   Dan Johnson
 ** History:  5/21/89, DSJ, Created.
 **
 ** (c) Copyright Hewlett-Packard Company, 1988.
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 ** http://www.apache.org/licenses/LICENSE-2.0
 ** Unless required by applicable law or agreed to in writing, software
 ** distributed under the License is distributed on an "AS IS" BASIS,
 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 ******************************************************************************/
/*----------------------------------------------------------------------------
          Include Files and Type Defines
----------------------------------------------------------------------------*/
#include "efio.h"
#include "danerror.h"
#include <stdio.h>
#include <string.h>

#define MAXERRORMESSAGE   256

/*----------------------------------------------------------------------------
              Public Code
----------------------------------------------------------------------------*/
/**
 * This routine attempts to open the specified file in the
 * specified mode.  If the file can be opened, a pointer to
 * the open file is returned.  If the file cannot be opened,
 * an error is trapped.
 * @param Name name of file to be opened
 * @param Mode mode to be used to open file
 * @return Pointer to open file.
 * @note Globals: None
 * @note Exceptions: #FOPENERROR unable to open specified file
 * @note History: 5/21/89, DSJ, Created.
 */
FILE *Efopen(const char *Name, const char *Mode) {
  FILE *File;
  char ErrorMessage[MAXERRORMESSAGE];

  File = fopen (Name, Mode);
  if (File == nullptr) {
    sprintf (ErrorMessage, "Unable to open %s", Name);
    DoError(FOPENERROR, ErrorMessage); 
    return (nullptr);
  }
  else
    return (File);
}                                /* Efopen */