29 #define	COPY(n)	  (void) memmove ((void *) fp->_p, (void *) p, (size_t) (n))
35       p = iov->iov_base; \
36       len = iov->iov_len; \
58   register ssize_t w, s;  in _sfvwrite()  local
62   if ((len = uio->uio_resid) == 0)  in _sfvwrite()
69   iov = uio->uio_iov;  in _sfvwrite()
76   if (fp->_flags & __SCLE) /* text mode */  in _sfvwrite()
78       if (fp->_flags2 & __SWID)  in _sfvwrite()
88 		  len--;  in _sfvwrite()
89 		  uio->uio_resid--;  in _sfvwrite()
92 	  while (uio->uio_resid > 0);  in _sfvwrite()
104 		  len--;  in _sfvwrite()
105 		  uio->uio_resid--;  in _sfvwrite()
108 	  while (uio->uio_resid > 0);  in _sfvwrite()
114   if (fp->_flags & __SNBF)  in _sfvwrite()
123 	  w = fp->_write (fp->_cookie, p,  in _sfvwrite()
124 			  MIN (len, INT_MAX - INT_MAX % BUFSIZ));  in _sfvwrite()
125 	  if (w <= 0)  in _sfvwrite()
127 	  p += w;  in _sfvwrite()
128 	  len -= w;  in _sfvwrite()
130       while ((uio->uio_resid -= w) != 0);  in _sfvwrite()
132   else if ((fp->_flags & __SLBF) == 0)  in _sfvwrite()
150 	  w = fp->_w;  in _sfvwrite()
151 	  if (fp->_flags & __SSTR)  in _sfvwrite()
153               if (len >= (size_t) w && fp->_flags & (__SMBF | __SOPT))  in _sfvwrite()
156 		  int curpos = (fp->_p - fp->_bf._base);  in _sfvwrite()
164 		  int newsize = fp->_bf._size * 3 / 2;  in _sfvwrite()
167 		  if (fp->_flags & __SOPT)  in _sfvwrite()
176 		      memcpy (str, fp->_bf._base, curpos);  in _sfvwrite()
177 		      fp->_flags = (fp->_flags & ~__SOPT) | __SMBF;  in _sfvwrite()
181 		      str = (unsigned char *)realloc (fp->_bf._base,  in _sfvwrite()
187 			  free (fp->_bf._base);  in _sfvwrite()
188 			  fp->_flags &=  ~__SMBF;  in _sfvwrite()
194 		  fp->_bf._base = str;  in _sfvwrite()
195 		  fp->_p = str + curpos;  in _sfvwrite()
196 		  fp->_bf._size = newsize;  in _sfvwrite()
197 		  w = len;  in _sfvwrite()
198 		  fp->_w = newsize - curpos;  in _sfvwrite()
200 	      if (len < (size_t) w)  in _sfvwrite()
201 		w = len;  in _sfvwrite()
202 	      COPY (w);		/* copy MIN(fp->_w,len), */  in _sfvwrite()
203 	      fp->_w -= w;  in _sfvwrite()
204 	      fp->_p += w;  in _sfvwrite()
205 	      w = len;		/* but pretend copied all */  in _sfvwrite()
207 	  else if (fp->_p > fp->_bf._base || len < (size_t) fp->_bf._size)  in _sfvwrite()
210 	      w = MIN (len, (size_t) w);  in _sfvwrite()
211 	      COPY (w);  in _sfvwrite()
212 	      fp->_w -= w;  in _sfvwrite()
213 	      fp->_p += w;  in _sfvwrite()
214 	      if (fp->_w == 0 && fflush ( fp))  in _sfvwrite()
220 	      w = ((int)MIN (len, INT_MAX)) / fp->_bf._size * fp->_bf._size;  in _sfvwrite()
221 	      w = fp->_write (fp->_cookie, p, w);  in _sfvwrite()
222 	      if (w <= 0)  in _sfvwrite()
225 	  p += w;  in _sfvwrite()
226 	  len -= w;  in _sfvwrite()
228       while ((uio->uio_resid -= w) != 0);  in _sfvwrite()
247 	      nldist = nl ? nl + 1 - p : (int) (len + 1);  in _sfvwrite()
251 	  w = fp->_w + fp->_bf._size;  in _sfvwrite()
252 	  if (fp->_p > fp->_bf._base && s > w)  in _sfvwrite()
254 	      COPY (w);  in _sfvwrite()
255 	      /* fp->_w -= w; */  in _sfvwrite()
256 	      fp->_p += w;  in _sfvwrite()
260 	  else if (s >= (w = fp->_bf._size))  in _sfvwrite()
262 	      w = fp->_write (fp->_cookie, p, w);  in _sfvwrite()
263 	      if (w <= 0)  in _sfvwrite()
268 	      w = s;  in _sfvwrite()
269 	      COPY (w);  in _sfvwrite()
270 	      fp->_w -= w;  in _sfvwrite()
271 	      fp->_p += w;  in _sfvwrite()
273 	  if ((nldist -= w) == 0)  in _sfvwrite()
280 	  p += w;  in _sfvwrite()
281 	  len -= w;  in _sfvwrite()
283       while ((uio->uio_resid -= w) != 0);  in _sfvwrite()
288   fp->_flags |= __SERR;  in _sfvwrite()