dep: Add libFLAC 1.3.3

dep/libFLAC/src/windows_unicode_filenames.c

@@ -0,0 +1,185 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2016  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <io.h>
+#include <windows.h>
+#include "share/windows_unicode_filenames.h"
+
+/* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
+static wchar_t *wchar_from_utf8(const char *str)
+{
+	wchar_t *widestr;
+	int len;
+
+	if (!str)
+		return NULL;
+	if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
+		return NULL;
+	if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
+		return NULL;
+	if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
+		free(widestr);
+		widestr = NULL;
+	}
+
+	return widestr;
+}
+
+
+static FLAC__bool utf8_filenames = false;
+
+
+void flac_internal_set_utf8_filenames(FLAC__bool flag)
+{
+	utf8_filenames = flag ? true : false;
+}
+
+FLAC__bool flac_internal_get_utf8_filenames(void)
+{
+	return utf8_filenames;
+}
+
+/* file functions */
+
+FILE* flac_internal_fopen_utf8(const char *filename, const char *mode)
+{
+	if (!utf8_filenames) {
+		return fopen(filename, mode);
+	} else {
+		wchar_t *wname = NULL;
+		wchar_t *wmode = NULL;
+		FILE *f = NULL;
+
+		do {
+			if (!(wname = wchar_from_utf8(filename))) break;
+			if (!(wmode = wchar_from_utf8(mode))) break;
+			f = _wfopen(wname, wmode);
+		} while(0);
+
+		free(wname);
+		free(wmode);
+
+		return f;
+	}
+}
+
+int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer)
+{
+	if (!utf8_filenames) {
+		return _stat64(path, buffer);
+	} else {
+		wchar_t *wpath;
+		int ret;
+
+		if (!(wpath = wchar_from_utf8(path))) return -1;
+		ret = _wstat64(wpath, buffer);
+		free(wpath);
+
+		return ret;
+	}
+}
+
+int flac_internal_chmod_utf8(const char *filename, int pmode)
+{
+	if (!utf8_filenames) {
+		return _chmod(filename, pmode);
+	} else {
+		wchar_t *wname;
+		int ret;
+
+		if (!(wname = wchar_from_utf8(filename))) return -1;
+		ret = _wchmod(wname, pmode);
+		free(wname);
+
+		return ret;
+	}
+}
+
+int flac_internal_utime_utf8(const char *filename, struct utimbuf *times)
+{
+	if (!utf8_filenames) {
+		return utime(filename, times);
+	} else {
+		wchar_t *wname;
+		struct __utimbuf64 ut;
+		int ret;
+
+		if (!(wname = wchar_from_utf8(filename))) return -1;
+		ut.actime = times->actime;
+		ut.modtime = times->modtime;
+		ret = _wutime64(wname, &ut);
+		free(wname);
+
+		return ret;
+	}
+}
+
+int flac_internal_unlink_utf8(const char *filename)
+{
+	if (!utf8_filenames) {
+		return _unlink(filename);
+	} else {
+		wchar_t *wname;
+		int ret;
+
+		if (!(wname = wchar_from_utf8(filename))) return -1;
+		ret = _wunlink(wname);
+		free(wname);
+
+		return ret;
+	}
+}
+
+int flac_internal_rename_utf8(const char *oldname, const char *newname)
+{
+	if (!utf8_filenames) {
+		return rename(oldname, newname);
+	} else {
+		wchar_t *wold = NULL;
+		wchar_t *wnew = NULL;
+		int ret = -1;
+
+		do {
+			if (!(wold = wchar_from_utf8(oldname))) break;
+			if (!(wnew = wchar_from_utf8(newname))) break;
+			ret = _wrename(wold, wnew);
+		} while(0);
+
+		free(wold);
+		free(wnew);
+
+		return ret;
+	}
+}