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efio.cpp
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1 /******************************************************************************
2  ** Filename: efio.c
3  ** Purpose: Utility I/O routines
4  ** Author: Dan Johnson
5  ** History: 5/21/89, DSJ, Created.
6  **
7  ** (c) Copyright Hewlett-Packard Company, 1988.
8  ** Licensed under the Apache License, Version 2.0 (the "License");
9  ** you may not use this file except in compliance with the License.
10  ** You may obtain a copy of the License at
11  ** http://www.apache.org/licenses/LICENSE-2.0
12  ** Unless required by applicable law or agreed to in writing, software
13  ** distributed under the License is distributed on an "AS IS" BASIS,
14  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  ** See the License for the specific language governing permissions and
16  ** limitations under the License.
17  ******************************************************************************/
21 #include "efio.h"
22 #include "danerror.h"
23 #include <stdio.h>
24 #include <string.h>
25 
26 #define MAXERRORMESSAGE 256
27 
31 /*---------------------------------------------------------------------------*/
32 FILE *Efopen(const char *Name, const char *Mode) {
33 /*
34  ** Parameters:
35  ** Name name of file to be opened
36  ** Mode mode to be used to open file
37  ** Globals:
38  ** None
39  ** Operation:
40  ** This routine attempts to open the specified file in the
41  ** specified mode. If the file can be opened, a pointer to
42  ** the open file is returned. If the file cannot be opened,
43  ** an error is trapped.
44  ** Return:
45  ** Pointer to open file.
46  ** Exceptions:
47  ** FOPENERROR unable to open specified file
48  ** History:
49  ** 5/21/89, DSJ, Created.
50  */
51  FILE *File;
52  char ErrorMessage[MAXERRORMESSAGE];
53 
54  File = fopen (Name, Mode);
55  if (File == NULL) {
56  sprintf (ErrorMessage, "Unable to open %s", Name);
57  DoError(FOPENERROR, ErrorMessage);
58  return (NULL);
59  }
60  else
61  return (File);
62 } /* Efopen */