1 #ifndef HEADER_CURL_MULTIBYTE_H 2 #define HEADER_CURL_MULTIBYTE_H 3 /*************************************************************************** 4 * _ _ ____ _ 5 * Project ___| | | | _ \| | 6 * / __| | | | |_) | | 7 * | (__| |_| | _ <| |___ 8 * \___|\___/|_| \_\_____| 9 * 10 * Copyright (C) 1998 - 2021, 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.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(WIN32) 27 28 /* 29 * MultiByte conversions using Windows kernel32 library. 30 */ 31 32 wchar_t *curlx_convert_UTF8_to_wchar(const char *str_utf8); 33 char *curlx_convert_wchar_to_UTF8(const wchar_t *str_w); 34 #endif /* WIN32 */ 35 36 /* 37 * Macros curlx_convert_UTF8_to_tchar(), curlx_convert_tchar_to_UTF8() 38 * and curlx_unicodefree() main purpose is to minimize the number of 39 * preprocessor conditional directives needed by code using these 40 * to differentiate UNICODE from non-UNICODE builds. 41 * 42 * In the case of a non-UNICODE build the tchar strings are char strings that 43 * are duplicated via strdup and remain in whatever the passed in encoding is, 44 * which is assumed to be UTF-8 but may be other encoding. Therefore the 45 * significance of the conversion functions is primarily for UNICODE builds. 46 * 47 * Allocated memory should be free'd with curlx_unicodefree(). 48 * 49 * Note: Because these are curlx functions their memory usage is not tracked 50 * by the curl memory tracker memdebug. You'll notice that curlx function-like 51 * macros call free and strdup in parentheses, eg (strdup)(ptr), and that's to 52 * ensure that the curl memdebug override macros do not replace them. 53 */ 54 55 #if defined(UNICODE) && defined(WIN32) 56 57 #define curlx_convert_UTF8_to_tchar(ptr) curlx_convert_UTF8_to_wchar((ptr)) 58 #define curlx_convert_tchar_to_UTF8(ptr) curlx_convert_wchar_to_UTF8((ptr)) 59 60 typedef union { 61 unsigned short *tchar_ptr; 62 const unsigned short *const_tchar_ptr; 63 unsigned short *tbyte_ptr; 64 const unsigned short *const_tbyte_ptr; 65 } xcharp_u; 66 67 #else 68 69 #define curlx_convert_UTF8_to_tchar(ptr) (strdup)(ptr) 70 #define curlx_convert_tchar_to_UTF8(ptr) (strdup)(ptr) 71 72 typedef union { 73 char *tchar_ptr; 74 const char *const_tchar_ptr; 75 unsigned char *tbyte_ptr; 76 const unsigned char *const_tbyte_ptr; 77 } xcharp_u; 78 79 #endif /* UNICODE && WIN32 */ 80 81 #define curlx_unicodefree(ptr) \ 82 do { \ 83 if(ptr) { \ 84 (free)(ptr); \ 85 (ptr) = NULL; \ 86 } \ 87 } while(0) 88 89 #endif /* HEADER_CURL_MULTIBYTE_H */ 90