Apache HTTPD
charset.c
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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
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
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
83}
APR Portability Routines.
APR Strings library.
const void apr_status_t(*) apr_status_t(* APR_DECLARE)(void) apr_pool_pre_cleanup_register(apr_pool_t *p
Definition apr_pools.h:646
apr_size_t size
const char int apr_pool_t * pool
Definition apr_cstr.h:84