77 	 * slots 0x0080-0x00FF are occuped and must be excluded  in _UTF8_init()
82 	return (0);  in _UTF8_init()
89 	return (ps == NULL || ((const _UTF8State *)ps)->want == 0);  in _UTF8_mbsinit()
96 	_UTF8State *us;  in _UTF8_mbrtowc()  local
100 	us = (_UTF8State *)ps;  in _UTF8_mbrtowc()
102 	if (us->want < 0 || us->want > 6) {  in _UTF8_mbrtowc()
113 	if (n == 0)  in _UTF8_mbrtowc()
117 	if (us->want == 0) {  in _UTF8_mbrtowc()
131 		if ((ch & 0x80) == 0) {  in _UTF8_mbrtowc()
135 			return (ch != '\0' ? 1 : 0);  in _UTF8_mbrtowc()
137 		if ((ch & 0xe0) == 0xc0) {  in _UTF8_mbrtowc()
138 			mask = 0x1f;  in _UTF8_mbrtowc()
140 			lbound = 0x80;  in _UTF8_mbrtowc()
141 		} else if ((ch & 0xf0) == 0xe0) {  in _UTF8_mbrtowc()
142 			mask = 0x0f;  in _UTF8_mbrtowc()
144 			lbound = 0x800;  in _UTF8_mbrtowc()
145 		} else if ((ch & 0xf8) == 0xf0) {  in _UTF8_mbrtowc()
146 			mask = 0x07;  in _UTF8_mbrtowc()
148 			lbound = 0x10000;  in _UTF8_mbrtowc()
157 		want = us->want;  in _UTF8_mbrtowc()
158 		lbound = us->lbound;  in _UTF8_mbrtowc()
165 	if (us->want == 0)  in _UTF8_mbrtowc()
168 		wch = us->ch;  in _UTF8_mbrtowc()
170 	for (i = (us->want == 0) ? 1 : 0; i < MIN(want, n); i++) {  in _UTF8_mbrtowc()
171 		if ((*s & 0xc0) != 0x80) {  in _UTF8_mbrtowc()
180 		wch |= *s++ & 0x3f;  in _UTF8_mbrtowc()
184 		us->want = want - i;  in _UTF8_mbrtowc()
185 		us->lbound = lbound;  in _UTF8_mbrtowc()
186 		us->ch = wch;  in _UTF8_mbrtowc()
196 	if ((wch >= 0xd800 && wch <= 0xdfff) || wch > 0x10ffff) {  in _UTF8_mbrtowc()
205 	us->want = 0;  in _UTF8_mbrtowc()
206 	return (wch == L'\0' ? 0 : want);  in _UTF8_mbrtowc()
213 	_UTF8State *us;  in _UTF8_mbsnrtowcs()  local
219 	us = (_UTF8State *)ps;  in _UTF8_mbsnrtowcs()
222 	nchr = 0;  in _UTF8_mbsnrtowcs()
230 		if (nms > 0 && us->want > 0 && (signed char)*s > 0) {  in _UTF8_mbsnrtowcs()
235 			if (nms > 0 && (signed char)*s > 0)  in _UTF8_mbsnrtowcs()
245 			else if (nb == 0 || nb == (size_t)-2)  in _UTF8_mbsnrtowcs()
259 	if (nms > 0 && len > 0 && us->want > 0 && (signed char)*s > 0) {  in _UTF8_mbsnrtowcs()
263 	while (len-- > 0) {  in _UTF8_mbsnrtowcs()
264 		if (nms > 0 && (signed char)*s > 0) {  in _UTF8_mbsnrtowcs()
278 		} else if (nb == 0) {  in _UTF8_mbsnrtowcs()
294 	_UTF8State *us;  in _UTF8_wcrtomb()  local
298 	us = (_UTF8State *)ps;  in _UTF8_wcrtomb()
300 	if (us->want != 0) {  in _UTF8_wcrtomb()
315 	if ((wc & ~0x7f) == 0) {  in _UTF8_wcrtomb()
319 	} else if ((wc & ~0x7ff) == 0) {  in _UTF8_wcrtomb()
320 		lead = 0xc0;  in _UTF8_wcrtomb()
322 	} else if ((wc & ~0xffff) == 0) {  in _UTF8_wcrtomb()
323 		if (wc >= 0xd800 && wc <= 0xdfff) {  in _UTF8_wcrtomb()
327 		lead = 0xe0;  in _UTF8_wcrtomb()
329 	} else if (wc >= 0 && wc <= 0x10ffff) {  in _UTF8_wcrtomb()
330 		lead = 0xf0;  in _UTF8_wcrtomb()
343 	for (i = len - 1; i > 0; i--) {  in _UTF8_wcrtomb()
344 		s[i] = (wc & 0x3f) | 0x80;  in _UTF8_wcrtomb()
347 	*s = (wc & 0xff) | lead;  in _UTF8_wcrtomb()
356 	_UTF8State *us;  in _UTF8_wcsnrtombs()  local
362 	us = (_UTF8State *)ps;  in _UTF8_wcsnrtombs()
364 	if (us->want != 0) {  in _UTF8_wcsnrtombs()
370 	nbytes = 0;  in _UTF8_wcsnrtombs()
373 		while (nwc-- > 0) {  in _UTF8_wcsnrtombs()
374 			if (0 <= *s && *s < 0x80)  in _UTF8_wcsnrtombs()
381 			if (*s == L'\0')  in _UTF8_wcsnrtombs()
389 	while (len > 0 && nwc-- > 0) {  in _UTF8_wcsnrtombs()
390 		if (0 <= *s && *s < 0x80) {  in _UTF8_wcsnrtombs()
413 		if (*s == L'\0') {  in _UTF8_wcsnrtombs()