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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 */