819 	unsigned int needlen;  in isc_httpd_response()  local
821 	needlen = strlen(httpd->protocol) + 1; /* protocol + space */  in isc_httpd_response()
822 	needlen += 3 + 1;  /* room for response code, always 3 bytes */  in isc_httpd_response()
823 	needlen += strlen(httpd->retmsg) + 2;  /* return msg + CRLF */  in isc_httpd_response()
825 	while (isc_buffer_availablelength(&httpd->headerbuffer) < needlen) {  in isc_httpd_response()
833 	isc_buffer_add(&httpd->headerbuffer, needlen);  in isc_httpd_response()
843 	unsigned int needlen;  in isc_httpd_addheader()  local
845 	needlen = strlen(name); /* name itself */  in isc_httpd_addheader()
847 		needlen += 2 + strlen(val); /* :<space> and val */  in isc_httpd_addheader()
848 	needlen += 2; /* CRLF */  in isc_httpd_addheader()
850 	while (isc_buffer_availablelength(&httpd->headerbuffer) < needlen) {  in isc_httpd_addheader()
863 	isc_buffer_add(&httpd->headerbuffer, needlen);  in isc_httpd_addheader()
887 	unsigned int needlen;  in isc_httpd_addheaderuint()  local
892 	needlen = strlen(name); /* name itself */  in isc_httpd_addheaderuint()
893 	needlen += 2 + strlen(buf); /* :<space> and val */  in isc_httpd_addheaderuint()
894 	needlen += 2; /* CRLF */  in isc_httpd_addheaderuint()
896 	while (isc_buffer_availablelength(&httpd->headerbuffer) < needlen) {  in isc_httpd_addheaderuint()
905 	isc_buffer_add(&httpd->headerbuffer, needlen);  in isc_httpd_addheaderuint()