1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24
25 /*
26 * This file is 'mem-include-scan' clean, which means memdebug.h and
27 * curl_memory.h are purposely not included in this file. See test 1132.
28 *
29 * The functions in this file are curlx functions which are not tracked by the
30 * curl memory tracker memdebug.
31 */
32
33 #include "curl_setup.h"
34
35 #if defined(_WIN32)
36
37 #include "curl_multibyte.h"
38
39 /*
40 * MultiByte conversions using Windows kernel32 library.
41 */
42
curlx_convert_UTF8_to_wchar(const char * str_utf8)43 wchar_t *curlx_convert_UTF8_to_wchar(const char *str_utf8)
44 {
45 wchar_t *str_w = NULL;
46
47 if(str_utf8) {
48 int str_w_len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
49 str_utf8, -1, NULL, 0);
50 if(str_w_len > 0) {
51 str_w = malloc(str_w_len * sizeof(wchar_t));
52 if(str_w) {
53 if(MultiByteToWideChar(CP_UTF8, 0, str_utf8, -1, str_w,
54 str_w_len) == 0) {
55 free(str_w);
56 return NULL;
57 }
58 }
59 }
60 }
61
62 return str_w;
63 }
64
curlx_convert_wchar_to_UTF8(const wchar_t * str_w)65 char *curlx_convert_wchar_to_UTF8(const wchar_t *str_w)
66 {
67 char *str_utf8 = NULL;
68
69 if(str_w) {
70 int bytes = WideCharToMultiByte(CP_UTF8, 0, str_w, -1,
71 NULL, 0, NULL, NULL);
72 if(bytes > 0) {
73 str_utf8 = malloc(bytes);
74 if(str_utf8) {
75 if(WideCharToMultiByte(CP_UTF8, 0, str_w, -1, str_utf8, bytes,
76 NULL, NULL) == 0) {
77 free(str_utf8);
78 return NULL;
79 }
80 }
81 }
82 }
83
84 return str_utf8;
85 }
86
87 #endif /* _WIN32 */
88
89 #if defined(USE_WIN32_LARGE_FILES) || defined(USE_WIN32_SMALL_FILES)
90
curlx_win32_open(const char * filename,int oflag,...)91 int curlx_win32_open(const char *filename, int oflag, ...)
92 {
93 int pmode = 0;
94
95 #ifdef _UNICODE
96 int result = -1;
97 wchar_t *filename_w = curlx_convert_UTF8_to_wchar(filename);
98 #endif
99
100 va_list param;
101 va_start(param, oflag);
102 if(oflag & O_CREAT)
103 pmode = va_arg(param, int);
104 va_end(param);
105
106 #ifdef _UNICODE
107 if(filename_w) {
108 result = _wopen(filename_w, oflag, pmode);
109 curlx_unicodefree(filename_w);
110 }
111 else
112 errno = EINVAL;
113 return result;
114 #else
115 return (_open)(filename, oflag, pmode);
116 #endif
117 }
118
curlx_win32_fopen(const char * filename,const char * mode)119 FILE *curlx_win32_fopen(const char *filename, const char *mode)
120 {
121 #ifdef _UNICODE
122 FILE *result = NULL;
123 wchar_t *filename_w = curlx_convert_UTF8_to_wchar(filename);
124 wchar_t *mode_w = curlx_convert_UTF8_to_wchar(mode);
125 if(filename_w && mode_w)
126 result = _wfopen(filename_w, mode_w);
127 else
128 errno = EINVAL;
129 curlx_unicodefree(filename_w);
130 curlx_unicodefree(mode_w);
131 return result;
132 #else
133 return (fopen)(filename, mode);
134 #endif
135 }
136
curlx_win32_stat(const char * path,struct_stat * buffer)137 int curlx_win32_stat(const char *path, struct_stat *buffer)
138 {
139 #ifdef _UNICODE
140 int result = -1;
141 wchar_t *path_w = curlx_convert_UTF8_to_wchar(path);
142 if(path_w) {
143 #if defined(USE_WIN32_SMALL_FILES)
144 result = _wstat(path_w, buffer);
145 #else
146 result = _wstati64(path_w, buffer);
147 #endif
148 curlx_unicodefree(path_w);
149 }
150 else
151 errno = EINVAL;
152 return result;
153 #else
154 #if defined(USE_WIN32_SMALL_FILES)
155 return _stat(path, buffer);
156 #else
157 return _stati64(path, buffer);
158 #endif
159 #endif
160 }
161
162 #endif /* USE_WIN32_LARGE_FILES || USE_WIN32_SMALL_FILES */
163
