81 xwrmsg(type, str, fn)  in xwrmsg()  argument
83 int fn;
96 	(void) (*Write)(fn, bufr, strlen(bufr) + 1);
109 xrdmsg(str, fn)  in xrdmsg()  argument
119 		if( (len = (*Read)(fn, str, XBUFSIZ)) == 0)
143 xwrdata(fp1, fn)  in xwrdata()  argument
156 		ret = (*Write)(fn, bufr, len);
163 	ret = (*Write)(fn, bufr, 0);
177 xrddata(fn, fp2)  in xrddata()  argument
189 		len = xrdblk(bufr, XBUFSIZ, fn);
214 xrdblk(blk, len,  fn)  in xrdblk()  argument
224 		if ((ret = (*Read)(fn, blk, len - i)) < 0) {