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 <windows.h>
38 #include "share/windows_unicode_filenames.h"
39
40 /*** FIXME: KLUDGE: export these syms for flac.exe, metaflac.exe, etc. ***/
41
42 /* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
wchar_from_utf8(const char * str)43 static wchar_t *wchar_from_utf8(const char *str)
44 {
45 wchar_t *widestr;
46 int len;
47
48 if (!str)
49 return NULL;
50 if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
51 return NULL;
52 if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
53 return NULL;
54 if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
55 free(widestr);
56 widestr = NULL;
57 }
58
59 return widestr;
60 }
61
62
63 static FLAC__bool utf8_filenames = false;
64
65
flac_internal_set_utf8_filenames(FLAC__bool flag)66 FLAC_API void flac_internal_set_utf8_filenames(FLAC__bool flag)
67 {
68 utf8_filenames = flag ? true : false;
69 }
70
flac_internal_get_utf8_filenames(void)71 FLAC_API FLAC__bool flac_internal_get_utf8_filenames(void)
72 {
73 return utf8_filenames;
74 }
75
76 /* file functions */
77
flac_internal_fopen_utf8(const char * filename,const char * mode)78 FLAC_API FILE* flac_internal_fopen_utf8(const char *filename, const char *mode)
79 {
80 if (!utf8_filenames) {
81 return fopen(filename, mode);
82 } else {
83 wchar_t *wname = NULL;
84 wchar_t *wmode = NULL;
85 FILE *f = NULL;
86
87 do {
88 if (!(wname = wchar_from_utf8(filename))) break;
89 if (!(wmode = wchar_from_utf8(mode))) break;
90 f = _wfopen(wname, wmode);
91 } while(0);
92
93 free(wname);
94 free(wmode);
95
96 return f;
97 }
98 }
99
flac_internal_stat64_utf8(const char * path,struct __stat64 * buffer)100 FLAC_API int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer)
101 {
102 if (!utf8_filenames) {
103 return _stat64(path, buffer);
104 } else {
105 wchar_t *wpath;
106 int ret;
107
108 if (!(wpath = wchar_from_utf8(path))) return -1;
109 ret = _wstat64(wpath, buffer);
110 free(wpath);
111
112 return ret;
113 }
114 }
115
flac_internal_chmod_utf8(const char * filename,int pmode)116 FLAC_API int flac_internal_chmod_utf8(const char *filename, int pmode)
117 {
118 if (!utf8_filenames) {
119 return _chmod(filename, pmode);
120 } else {
121 wchar_t *wname;
122 int ret;
123
124 if (!(wname = wchar_from_utf8(filename))) return -1;
125 ret = _wchmod(wname, pmode);
126 free(wname);
127
128 return ret;
129 }
130 }
131
flac_internal_utime_utf8(const char * filename,struct utimbuf * times)132 FLAC_API int flac_internal_utime_utf8(const char *filename, struct utimbuf *times)
133 {
134 if (!utf8_filenames) {
135 return utime(filename, times);
136 } else {
137 wchar_t *wname;
138 struct __utimbuf64 ut;
139 int ret;
140
141 if (!(wname = wchar_from_utf8(filename))) return -1;
142 ut.actime = times->actime;
143 ut.modtime = times->modtime;
144 ret = _wutime64(wname, &ut);
145 free(wname);
146
147 return ret;
148 }
149 }
150
flac_internal_unlink_utf8(const char * filename)151 FLAC_API int flac_internal_unlink_utf8(const char *filename)
152 {
153 if (!utf8_filenames) {
154 return _unlink(filename);
155 } else {
156 wchar_t *wname;
157 int ret;
158
159 if (!(wname = wchar_from_utf8(filename))) return -1;
160 ret = _wunlink(wname);
161 free(wname);
162
163 return ret;
164 }
165 }
166
flac_internal_rename_utf8(const char * oldname,const char * newname)167 FLAC_API int flac_internal_rename_utf8(const char *oldname, const char *newname)
168 {
169 if (!utf8_filenames) {
170 return rename(oldname, newname);
171 } else {
172 wchar_t *wold = NULL;
173 wchar_t *wnew = NULL;
174 int ret = -1;
175
176 do {
177 if (!(wold = wchar_from_utf8(oldname))) break;
178 if (!(wnew = wchar_from_utf8(newname))) break;
179 ret = _wrename(wold, wnew);
180 } while(0);
181
182 free(wold);
183 free(wnew);
184
185 return ret;
186 }
187 }
188