1 /* libFLAC - Free Lossless Audio Codec library
2 * Copyright (C) 2013-2016 Xiph.Org Foundation
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of the Xiph.org Foundation nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifdef HAVE_CONFIG_H
33 # include <config.h>
34 #endif
35
36 #include <io.h>
37 #include "share/windows_unicode_filenames.h"
38
39 /* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
wchar_from_utf8(const char * str)40 static wchar_t *wchar_from_utf8(const char *str)
41 {
42 wchar_t *widestr;
43 int len;
44
45 if (!str)
46 return NULL;
47 if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
48 return NULL;
49 if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
50 return NULL;
51 if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
52 free(widestr);
53 widestr = NULL;
54 }
55
56 return widestr;
57 }
58
59
60 static FLAC__bool utf8_filenames = false;
61
62
flac_internal_set_utf8_filenames(FLAC__bool flag)63 void flac_internal_set_utf8_filenames(FLAC__bool flag)
64 {
65 utf8_filenames = flag ? true : false;
66 }
67
flac_internal_get_utf8_filenames(void)68 FLAC__bool flac_internal_get_utf8_filenames(void)
69 {
70 return utf8_filenames;
71 }
72
73 /* file functions */
74
flac_internal_fopen_utf8(const char * filename,const char * mode)75 FILE* flac_internal_fopen_utf8(const char *filename, const char *mode)
76 {
77 if (!utf8_filenames) {
78 return fopen(filename, mode);
79 } else {
80 wchar_t *wname = NULL;
81 wchar_t *wmode = NULL;
82 FILE *f = NULL;
83
84 do {
85 if (!(wname = wchar_from_utf8(filename))) break;
86 if (!(wmode = wchar_from_utf8(mode))) break;
87 f = _wfopen(wname, wmode);
88 } while(0);
89
90 free(wname);
91 free(wmode);
92
93 return f;
94 }
95 }
96
flac_internal_stat64_utf8(const char * path,struct __stat64 * buffer)97 int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer)
98 {
99 if (!utf8_filenames) {
100 return _stat64(path, buffer);
101 } else {
102 wchar_t *wpath;
103 int ret;
104
105 if (!(wpath = wchar_from_utf8(path))) return -1;
106 ret = _wstat64(wpath, buffer);
107 free(wpath);
108
109 return ret;
110 }
111 }
112
flac_internal_chmod_utf8(const char * filename,int pmode)113 int flac_internal_chmod_utf8(const char *filename, int pmode)
114 {
115 if (!utf8_filenames) {
116 return _chmod(filename, pmode);
117 } else {
118 wchar_t *wname;
119 int ret;
120
121 if (!(wname = wchar_from_utf8(filename))) return -1;
122 ret = _wchmod(wname, pmode);
123 free(wname);
124
125 return ret;
126 }
127 }
128
flac_internal_utime_utf8(const char * filename,struct utimbuf * times)129 int flac_internal_utime_utf8(const char *filename, struct utimbuf *times)
130 {
131 if (!utf8_filenames) {
132 return utime(filename, times);
133 } else {
134 wchar_t *wname;
135 struct __utimbuf64 ut;
136 int ret;
137
138 if (!(wname = wchar_from_utf8(filename))) return -1;
139 ut.actime = times->actime;
140 ut.modtime = times->modtime;
141 ret = _wutime64(wname, &ut);
142 free(wname);
143
144 return ret;
145 }
146 }
147
flac_internal_unlink_utf8(const char * filename)148 int flac_internal_unlink_utf8(const char *filename)
149 {
150 if (!utf8_filenames) {
151 return _unlink(filename);
152 } else {
153 wchar_t *wname;
154 int ret;
155
156 if (!(wname = wchar_from_utf8(filename))) return -1;
157 ret = _wunlink(wname);
158 free(wname);
159
160 return ret;
161 }
162 }
163
flac_internal_rename_utf8(const char * oldname,const char * newname)164 int flac_internal_rename_utf8(const char *oldname, const char *newname)
165 {
166 if (!utf8_filenames) {
167 return rename(oldname, newname);
168 } else {
169 wchar_t *wold = NULL;
170 wchar_t *wnew = NULL;
171 int ret = -1;
172
173 do {
174 if (!(wold = wchar_from_utf8(oldname))) break;
175 if (!(wnew = wchar_from_utf8(newname))) break;
176 ret = _wrename(wold, wnew);
177 } while(0);
178
179 free(wold);
180 free(wnew);
181
182 return ret;
183 }
184 }
185
flac_internal_CreateFile_utf8(const char * lpFileName,DWORD dwDesiredAccess,DWORD dwShareMode,LPSECURITY_ATTRIBUTES lpSecurityAttributes,DWORD dwCreationDisposition,DWORD dwFlagsAndAttributes,HANDLE hTemplateFile)186 HANDLE WINAPI flac_internal_CreateFile_utf8(const char *lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
187 {
188 if (!utf8_filenames) {
189 return CreateFileA(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
190 } else {
191 wchar_t *wname;
192 HANDLE handle = INVALID_HANDLE_VALUE;
193
194 if ((wname = wchar_from_utf8(lpFileName)) != NULL) {
195 handle = CreateFileW(wname, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
196 free(wname);
197 }
198
199 return handle;
200 }
201 }
202