va_list vlist; int n;
va_list args; int i, j, k; const char *x; BUFF *fb = r->connection->client;
API_EXPORT_NONSTD(int) ap_rprintf(request_rec *r, const char *fmt,...){    va_list vlist;    int n;    if (r->connection->aborted)        return -1;    va_start(vlist, fmt);    n = ap_vbprintf(r->connection->client, fmt, vlist);    va_end(vlist);    if (n < 0) {        if (!r->connection->aborted) {            ap_log_rerror(APLOG_MARK, APLOG_INFO, r,                "client stopped connection before rprintf completed");            ap_bsetflag(r->connection->client, B_EOUT, 1);            r->connection->aborted = 1;        }        return -1;    }    SET_BYTES_SENT(r);    return n;}