58 wmemstream_grow(struct wmemstream *ms, fpos_t newoff)  in wmemstream_grow()  argument
67 	if (newsize > ms->len) {  in wmemstream_grow()
68 		buf = reallocarray(*ms->bufp, newsize + 1, sizeof(wchar_t));  in wmemstream_grow()
72 			    ms, ms->len, newsize);  in wmemstream_grow()
74 			wmemset(buf + ms->len + 1, 0, newsize - ms->len);  in wmemstream_grow()
75 			*ms->bufp = buf;  in wmemstream_grow()
76 			ms->len = newsize;  in wmemstream_grow()
85 wmemstream_update(struct wmemstream *ms)  in wmemstream_update()  argument
88 	assert(ms->len >= 0 && ms->offset >= 0);  in wmemstream_update()
89 	*ms->sizep = ms->len < ms->offset ? ms->len : ms->offset;  in wmemstream_update()
124 	struct wmemstream *ms;  in wmemstream_write()  local
128 	ms = cookie;  in wmemstream_write()
129 	wlen = wbuflen(&ms->mbstate, buf, len);  in wmemstream_write()
134 	if (!wmemstream_grow(ms, ms->offset + wlen))  in wmemstream_write()
143 	while (len > 0 && ms->offset < ms->len) {  in wmemstream_write()
144 		charlen = mbrtowc(*ms->bufp + ms->offset, buf, len,  in wmemstream_write()
145 		    &ms->mbstate);  in wmemstream_write()
164 			ms->offset++;  in wmemstream_write()
167 	wmemstream_update(ms);  in wmemstream_write()
169 	fprintf(stderr, "WMS: write(%p, %d) = %zd\n", ms, len, consumed);  in wmemstream_write()
177 	struct wmemstream *ms;  in wmemstream_seek()  local
180 	ms = cookie;  in wmemstream_seek()
181 	old = ms->offset;  in wmemstream_seek()
186 		ms->offset = pos;  in wmemstream_seek()
194 			if (pos + ms->len < 0) {  in wmemstream_seek()
198 				    (intmax_t)pos, ms->len);  in wmemstream_seek()
204 			if (FPOS_MAX - ms->len < pos) {  in wmemstream_seek()
208 				    (intmax_t)pos, ms->len);  in wmemstream_seek()
214 		ms->offset = ms->len + pos;  in wmemstream_seek()
218 	if (ms->offset != old)  in wmemstream_seek()
219 		memset(&ms->mbstate, 0, sizeof(ms->mbstate));  in wmemstream_seek()
220 	wmemstream_update(ms);  in wmemstream_seek()
222 	fprintf(stderr, "WMS: seek(%p, %jd, %d) %jd -> %jd\n", ms,  in wmemstream_seek()
223 	    (intmax_t)pos, whence, (intmax_t)old, (intmax_t)ms->offset);  in wmemstream_seek()
225 	return (ms->offset);  in wmemstream_seek()
239 	struct wmemstream *ms;  in open_wmemstream()  local
250 	ms = malloc(sizeof(*ms));  in open_wmemstream()
251 	if (ms == NULL) {  in open_wmemstream()
258 	ms->bufp = bufp;  in open_wmemstream()
259 	ms->sizep = sizep;  in open_wmemstream()
260 	ms->len = 0;  in open_wmemstream()
261 	ms->offset = 0;  in open_wmemstream()
262 	memset(&ms->mbstate, 0, sizeof(mbstate_t));  in open_wmemstream()
263 	wmemstream_update(ms);  in open_wmemstream()
264 	fp = funopen(ms, NULL, wmemstream_write, wmemstream_seek,  in open_wmemstream()
268 		free(ms);  in open_wmemstream()