163   size_t nread;  in Curl_fillreadbuffer()  local
247   nread = readfunc(data->req.upload_fromhere, 1,  in Curl_fillreadbuffer()
251   if(nread == CURL_READFUNC_ABORT) {  in Curl_fillreadbuffer()
256   if(nread == CURL_READFUNC_PAUSE) {  in Curl_fillreadbuffer()
277   else if(nread > buffersize) {  in Curl_fillreadbuffer()
323                          "%zx%s", nread, endofline_native);  in Curl_fillreadbuffer()
327       nread += hexlen;  in Curl_fillreadbuffer()
335       if((nread-hexlen) == 0 &&  in Curl_fillreadbuffer()
343         memcpy(data->req.upload_fromhere + nread,  in Curl_fillreadbuffer()
356         length = nread;  in Curl_fillreadbuffer()
383       if((nread - hexlen) == 0 &&  in Curl_fillreadbuffer()
392       nread += strlen(endofline_network); /* for the added end of line */  in Curl_fillreadbuffer()
397     result = Curl_convert_to_network(data, data->req.upload_fromhere, nread);  in Curl_fillreadbuffer()
404   *nreadp = nread;  in Curl_fillreadbuffer()
566   ssize_t nread; /* number of bytes read */  in readwrite_data()  local
606       result = Curl_read(data, conn->sockfd, buf, bytestoread, &nread);  in readwrite_data()
619       nread = 0;  in readwrite_data()
631     is_empty_data = ((nread == 0) && (k->bodywrites == 0)) ? TRUE : FALSE;  in readwrite_data()
633     if(0 < nread || is_empty_data) {  in readwrite_data()
634       buf[nread] = 0;  in readwrite_data()
640       if(is_http2 && !nread)  in readwrite_data()
654       result = conn->handler->readwrite(data, conn, &nread, &readmore);  in readwrite_data()
667       result = Curl_http_readwrite_headers(data, conn, &nread, &stop_reading);  in readwrite_data()
672          (k->maxdownload <= 0 && nread > 0)) {  in readwrite_data()
673         result = conn->handler->readwrite(data, conn, &nread, &readmore);  in readwrite_data()
683         if(nread > 0) {  in readwrite_data()
688                 nread, data->state.up.path);  in readwrite_data()
700     if(!k->header && (nread > 0 || is_empty_data)) {  in readwrite_data()
732                        k->str, (size_t)nread);  in readwrite_data()
736                      k->str, (size_t)nread);  in readwrite_data()
749           Curl_httpchunk_read(data, k->str, nread, &nread, &extra);  in readwrite_data()
783          (k->bytecount + nread >= k->maxdownload)) {  in readwrite_data()
785         excess = (size_t)(k->bytecount + nread - k->maxdownload);  in readwrite_data()
797         nread = (ssize_t) (k->maxdownload - k->bytecount);  in readwrite_data()
798         if(nread < 0) /* this should be unusual */  in readwrite_data()
799           nread = 0;  in readwrite_data()
804       k->bytecount += nread;  in readwrite_data()
808       if(!k->chunk && (nread || k->badheader || is_empty_data)) {  in readwrite_data()
836             if(!k->ignorebody && nread) {  in readwrite_data()
839                 result = Curl_pop3_write(data, k->str, nread);  in readwrite_data()
843                                            nread);  in readwrite_data()
846           else if(!k->ignorebody && nread)  in readwrite_data()
847             result = Curl_unencode_write(data, k->writer_stack, k->str, nread);  in readwrite_data()
859       k->str += nread;  in readwrite_data()
866       nread = (ssize_t)excess;  in readwrite_data()
868       result = conn->handler->readwrite(data, conn, &nread, &readmore);  in readwrite_data()
957   ssize_t nread; /* number of bytes read */  in readwrite_upload()  local
1012         nread = fillcount;  in readwrite_upload()
1015         nread = 0; /* we're done uploading/reading */  in readwrite_upload()
1017       if(!nread && (k->keepon & KEEP_SEND_PAUSE)) {  in readwrite_upload()
1021       if(nread <= 0) {  in readwrite_upload()
1029       k->upload_present = nread;  in readwrite_upload()
1054         for(i = 0, si = 0; i < nread; i++, si++) {  in readwrite_upload()
1069         if(si != nread) {  in readwrite_upload()
1072           nread = si;  in readwrite_upload()
1078           k->upload_present = nread;  in readwrite_upload()
1084         result = Curl_smtp_escape_eob(data, nread);  in readwrite_upload()