1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "apr.h"
18#include "apr_private.h"
19#include "apr_strings.h"
20#include "apr_portable.h"
21
22#ifdef HAVE_LANGINFO_H
23#include <langinfo.h>
24#endif
25
26/*
27 * simple heuristic to determine codepage of source code so that
28 * literal strings (e.g., "GET /\r\n") in source code can be translated
29 * properly
30 *
31 * If appropriate, a symbol can be set at configure time to determine
32 * this.  On EBCDIC platforms, it will be important how the code was
33 * unpacked.
34 */
35
36APR_DECLARE(const char*) apr_os_default_encoding (apr_pool_t *pool)
37{
38#ifdef __MVS__
39#    ifdef __CODESET__
40        return __CODESET__;
41#    else
42        return "IBM-1047";
43#    endif
44#endif
45
46    if ('}' == 0xD0) {
47        return "IBM-1047";
48    }
49
50    if ('{' == 0xFB) {
51        return "EDF04";
52    }
53
54    if ('A' == 0xC1) {
55        return "EBCDIC"; /* not useful */
56    }
57
58    if ('A' == 0x41) {
59        return "ISO-8859-1"; /* not necessarily true */
60    }
61
62    return "unknown";
63}
64
65
66APR_DECLARE(const char*) apr_os_locale_encoding (apr_pool_t *pool)
67{
68#if defined(HAVE_NL_LANGINFO) && defined(CODESET)
69    const char *charset;
70
71    charset = nl_langinfo(CODESET);
72    if (charset && *charset) {
73#ifdef _OSD_POSIX /* Bug workaround - delete as soon as fixed in OSD_POSIX */
74        /* Some versions of OSD_POSIX return nl_langinfo(CODESET)="^[nN]" */
75        /* Ignore the bogus information and use apr_os_default_encoding() */
76        if (charset[0] != '^')
77#endif
78        return apr_pstrdup(pool, charset);
79    }
80#endif
81
82    return apr_os_default_encoding(pool);
83}
84