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1 #ifndef HEADER_CURL_MULTIBYTE_H
2 #define HEADER_CURL_MULTIBYTE_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
11  *
12  * This software is licensed as described in the file COPYING, which
13  * you should have received as part of this distribution. The terms
14  * are also available at https://curl.haxx.se/docs/copyright.html.
15  *
16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17  * copies of the Software, and permit persons to whom the Software is
18  * furnished to do so, under the terms of the COPYING file.
19  *
20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21  * KIND, either express or implied.
22  *
23  ***************************************************************************/
24 #include "curl_setup.h"
25 
26 #if defined(USE_WIN32_IDN) || ((defined(USE_WINDOWS_SSPI) || \
27                                 defined(USE_WIN32_LDAP)) && defined(UNICODE))
28 
29  /*
30   * MultiByte conversions using Windows kernel32 library.
31   */
32 
33 wchar_t *Curl_convert_UTF8_to_wchar(const char *str_utf8);
34 char *Curl_convert_wchar_to_UTF8(const wchar_t *str_w);
35 
36 #endif /* USE_WIN32_IDN || ((USE_WINDOWS_SSPI || USE_WIN32_LDAP) && UNICODE) */
37 
38 
39 #if defined(USE_WIN32_IDN) || defined(USE_WINDOWS_SSPI) || \
40     defined(USE_WIN32_LDAP)
41 
42 /*
43  * Macros Curl_convert_UTF8_to_tchar(), Curl_convert_tchar_to_UTF8()
44  * and Curl_unicodefree() main purpose is to minimize the number of
45  * preprocessor conditional directives needed by code using these
46  * to differentiate UNICODE from non-UNICODE builds.
47  *
48  * When building with UNICODE defined, this two macros
49  * Curl_convert_UTF8_to_tchar() and Curl_convert_tchar_to_UTF8()
50  * return a pointer to a newly allocated memory area holding result.
51  * When the result is no longer needed, allocated memory is intended
52  * to be free'ed with Curl_unicodefree().
53  *
54  * When building without UNICODE defined, this macros
55  * Curl_convert_UTF8_to_tchar() and Curl_convert_tchar_to_UTF8()
56  * return the pointer received as argument. Curl_unicodefree() does
57  * no actual free'ing of this pointer it is simply set to NULL.
58  */
59 
60 #ifdef UNICODE
61 
62 #define Curl_convert_UTF8_to_tchar(ptr) Curl_convert_UTF8_to_wchar((ptr))
63 #define Curl_convert_tchar_to_UTF8(ptr) Curl_convert_wchar_to_UTF8((ptr))
64 #define Curl_unicodefree(ptr) \
65   do {if((ptr)) {free((ptr)); (ptr) = NULL;}} WHILE_FALSE
66 
67 typedef union {
68   unsigned short       *tchar_ptr;
69   const unsigned short *const_tchar_ptr;
70   unsigned short       *tbyte_ptr;
71   const unsigned short *const_tbyte_ptr;
72 } xcharp_u;
73 
74 #else
75 
76 #define Curl_convert_UTF8_to_tchar(ptr) (ptr)
77 #define Curl_convert_tchar_to_UTF8(ptr) (ptr)
78 #define Curl_unicodefree(ptr) \
79   do {(ptr) = NULL;} WHILE_FALSE
80 
81 typedef union {
82   char                *tchar_ptr;
83   const char          *const_tchar_ptr;
84   unsigned char       *tbyte_ptr;
85   const unsigned char *const_tbyte_ptr;
86 } xcharp_u;
87 
88 #endif /* UNICODE */
89 
90 #endif /* USE_WIN32_IDN || USE_WINDOWS_SSPI || USE_WIN32_LDAP */
91 
92 #endif /* HEADER_CURL_MULTIBYTE_H */
93