| 1 | #ifndef HEADER_CURL_MULTIBYTE_H
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| 2 | #define HEADER_CURL_MULTIBYTE_H
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| 3 | /***************************************************************************
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| 4 | * _ _ ____ _
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| 5 | * Project ___| | | | _ \| |
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| 6 | * / __| | | | |_) | |
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| 7 | * | (__| |_| | _ <| |___
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| 8 | * \___|\___/|_| \_\_____|
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| 9 | *
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| 10 | * Copyright (C) Daniel Stenberg, <[email protected]>, et al.
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| 11 | *
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| 12 | * This software is licensed as described in the file COPYING, which
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| 13 | * you should have received as part of this distribution. The terms
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| 14 | * are also available at https://curl.se/docs/copyright.html.
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| 15 | *
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| 16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 17 | * copies of the Software, and permit persons to whom the Software is
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| 18 | * furnished to do so, under the terms of the COPYING file.
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| 19 | *
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| 20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 21 | * KIND, either express or implied.
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| 22 | *
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| 23 | * SPDX-License-Identifier: curl
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| 24 | *
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| 25 | ***************************************************************************/
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| 26 | #include "curl_setup.h"
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| 27 |
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| 28 | #if defined(_WIN32)
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| 29 |
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| 30 | /*
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| 31 | * MultiByte conversions using Windows kernel32 library.
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| 32 | */
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| 33 |
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| 34 | wchar_t *curlx_convert_UTF8_to_wchar(const char *str_utf8);
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| 35 | char *curlx_convert_wchar_to_UTF8(const wchar_t *str_w);
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| 36 | #endif /* _WIN32 */
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| 37 |
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| 38 | /*
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| 39 | * Macros curlx_convert_UTF8_to_tchar(), curlx_convert_tchar_to_UTF8()
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| 40 | * and curlx_unicodefree() main purpose is to minimize the number of
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| 41 | * preprocessor conditional directives needed by code using these
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| 42 | * to differentiate Unicode from non-Unicode builds.
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| 43 | *
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| 44 | * In the case of a non-Unicode build the tchar strings are char strings that
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| 45 | * are duplicated via strdup and remain in whatever the passed in encoding is,
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| 46 | * which is assumed to be UTF-8 but may be other encoding. Therefore the
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| 47 | * significance of the conversion functions is primarily for Unicode builds.
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| 48 | *
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| 49 | * Allocated memory should be free'd with curlx_unicodefree().
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| 50 | *
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| 51 | * Note: Because these are curlx functions their memory usage is not tracked
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| 52 | * by the curl memory tracker memdebug. you will notice that curlx
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| 53 | * function-like macros call free and strdup in parentheses, eg (strdup)(ptr),
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| 54 | * and that is to ensure that the curl memdebug override macros do not replace
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| 55 | * them.
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| 56 | */
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| 57 |
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| 58 | #if defined(UNICODE) && defined(_WIN32)
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| 59 |
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| 60 | #define curlx_convert_UTF8_to_tchar(ptr) curlx_convert_UTF8_to_wchar((ptr))
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| 61 | #define curlx_convert_tchar_to_UTF8(ptr) curlx_convert_wchar_to_UTF8((ptr))
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| 62 |
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| 63 | typedef union {
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| 64 | unsigned short *tchar_ptr;
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| 65 | const unsigned short *const_tchar_ptr;
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| 66 | unsigned short *tbyte_ptr;
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| 67 | const unsigned short *const_tbyte_ptr;
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| 68 | } xcharp_u;
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| 69 |
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| 70 | #else
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| 71 |
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| 72 | #define curlx_convert_UTF8_to_tchar(ptr) (strdup)(ptr)
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| 73 | #define curlx_convert_tchar_to_UTF8(ptr) (strdup)(ptr)
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| 74 |
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| 75 | typedef union {
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| 76 | char *tchar_ptr;
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| 77 | const char *const_tchar_ptr;
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| 78 | unsigned char *tbyte_ptr;
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| 79 | const unsigned char *const_tbyte_ptr;
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| 80 | } xcharp_u;
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| 81 |
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| 82 | #endif /* UNICODE && _WIN32 */
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| 83 |
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| 84 | #define curlx_unicodefree(ptr) \
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| 85 | do { \
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| 86 | if(ptr) { \
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| 87 | (free)(ptr); \
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| 88 | (ptr) = NULL; \
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| 89 | } \
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| 90 | } while(0)
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| 91 |
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| 92 | #endif /* HEADER_CURL_MULTIBYTE_H */
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