• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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