61 static const char *utf8_to_wchar(const char *input, wchar_t *wc,  in utf8_to_wchar()  argument
65 		*wc = (wchar_t) input[0];  in utf8_to_wchar()
69 		*wc = (((wchar_t) input[0] & 0x1f) << 6) |  in utf8_to_wchar()
74 		*wc = (((wchar_t) input[0] & 0x0f) << 12) |  in utf8_to_wchar()
80 		*wc = (((wchar_t) input[0] & 0x07) << 18) |  in utf8_to_wchar()
87 		*wc = (((wchar_t) input[0] & 0x03) << 24) |  in utf8_to_wchar()
95 		*wc = (((wchar_t) input[0] & 0x01) << 30) |  in utf8_to_wchar()
106 static u_int16_t *wchar_to_utf16(u_int16_t *output, wchar_t wc, size_t outsize)  in wchar_to_utf16()  argument
108 	if (wc <= 0xffff) {  in wchar_to_utf16()
111 		output[0] = cpu_to_le16(wc);  in wchar_to_utf16()
116 	wc -= 0x10000;  in wchar_to_utf16()
117 	output[0] = cpu_to_le16(0xd800 | ((wc >> 10) & 0x3ff));  in wchar_to_utf16()
118 	output[1] = cpu_to_le16(0xdc00 | (wc & 0x3ff));  in wchar_to_utf16()
127 	wchar_t wc;  in utf8_to_utf16()  local
130 		inp = utf8_to_wchar(inp, &wc, insize - (inp - input));  in utf8_to_utf16()
135 		outp = wchar_to_utf16(outp, wc, outsize - (outp - output));  in utf8_to_utf16()
145 static const u_int16_t *utf16_to_wchar(const u_int16_t *input, wchar_t *wc,  in utf16_to_wchar()  argument
151 		*wc = ((wchar_t) (le16_to_cpu(input[0]) & 0x3ff) << 10);  in utf16_to_wchar()
152 		*wc |= (le16_to_cpu(input[1]) & 0x3ff);  in utf16_to_wchar()
153 		*wc += 0x10000;  in utf16_to_wchar()
156 		*wc = le16_to_cpu(*input);  in utf16_to_wchar()
161 static char *wchar_to_utf8(char *output, wchar_t wc, size_t outsize)  in wchar_to_utf8()  argument
163 	if (wc <= 0x7f) {  in wchar_to_utf8()
166 		*output++ = (char) wc;  in wchar_to_utf8()
167 	} else if (wc <= 0x7ff) {  in wchar_to_utf8()
170 		*output++ = 0xc0 | (wc >> 6);  in wchar_to_utf8()
171 		*output++ = 0x80 | (wc & 0x3f);  in wchar_to_utf8()
172 	} else if (wc <= 0xffff) {  in wchar_to_utf8()
175 		*output++ = 0xe0 | (wc >> 12);  in wchar_to_utf8()
176 		*output++ = 0x80 | ((wc >> 6) & 0x3f);  in wchar_to_utf8()
177 		*output++ = 0x80 | (wc & 0x3f);  in wchar_to_utf8()
178 	} else if (wc <= 0x1fffff) {  in wchar_to_utf8()
181 		*output++ = 0xf0 | (wc >> 18);  in wchar_to_utf8()
182 		*output++ = 0x80 | ((wc >> 12) & 0x3f);  in wchar_to_utf8()
183 		*output++ = 0x80 | ((wc >> 6) & 0x3f);  in wchar_to_utf8()
184 		*output++ = 0x80 | (wc & 0x3f);  in wchar_to_utf8()
185 	} else if (wc <= 0x3ffffff) {  in wchar_to_utf8()
188 		*output++ = 0xf8 | (wc >> 24);  in wchar_to_utf8()
189 		*output++ = 0x80 | ((wc >> 18) & 0x3f);  in wchar_to_utf8()
190 		*output++ = 0x80 | ((wc >> 12) & 0x3f);  in wchar_to_utf8()
191 		*output++ = 0x80 | ((wc >> 6) & 0x3f);  in wchar_to_utf8()
192 		*output++ = 0x80 | (wc & 0x3f);  in wchar_to_utf8()
193 	} else if (wc <= 0x7fffffff) {  in wchar_to_utf8()
196 		*output++ = 0xfc | (wc >> 30);  in wchar_to_utf8()
197 		*output++ = 0x80 | ((wc >> 24) & 0x3f);  in wchar_to_utf8()
198 		*output++ = 0x80 | ((wc >> 18) & 0x3f);  in wchar_to_utf8()
199 		*output++ = 0x80 | ((wc >> 12) & 0x3f);  in wchar_to_utf8()
200 		*output++ = 0x80 | ((wc >> 6) & 0x3f);  in wchar_to_utf8()
201 		*output++ = 0x80 | (wc & 0x3f);  in wchar_to_utf8()
213 	wchar_t wc;  in utf16_to_utf8()  local
216 		inp = utf16_to_wchar(inp, &wc, insize - (inp - input));  in utf16_to_utf8()
221 		outp = wchar_to_utf8(outp, wc, outsize - (outp - output));  in utf16_to_utf8()