Function ftp_getrc_msg

modules/proxy/mod_proxy_ftp.c:381–425

* Reads response lines, returns both the ftp status code and * remembers the response message in the supplied buffer */

 * remembers the response message in the supplied buffer
 */
static int ftp_getrc_msg(conn_rec *ftp_ctrl, apr_bucket_brigade *bb, char *msgbuf, int msglen)
{
    int status;
    char response[MAX_LINE_LEN];
    char buff[5];
    char *mb = msgbuf, *me = &msgbuf[msglen];
    apr_status_t rv;
    apr_size_t nread;
    
    int eos;

    if (APR_SUCCESS != (rv = ftp_string_read(ftp_ctrl, bb, response, sizeof(response), &eos, &nread))) {
        return -1;
    }
/*
    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, NULL, APLOGNO(03233)
                 "<%s", response);
*/
    if (nread < 4) { 
        ap_log_error(APLOG_MARK, APLOG_INFO, 0, NULL, APLOGNO(10229) "Malformed FTP response '%s'", response);
        *mb = '\0';
        return -1;
    }

    if (!apr_isdigit(response[0]) || !apr_isdigit(response[1]) ||
        !apr_isdigit(response[2]) || (response[3] != ' ' && response[3] != '-'))
        status = 0;
    else
        status = 100 * response[0] + 10 * response[1] + response[2] - 111 * '0';

    mb = apr_cpystrn(mb, response + 4, me - mb);

    if (response[3] == '-') { /* multi-line reply "123-foo\nbar\n123 baz" */
        memcpy(buff, response, 3);
        buff[3] = ' ';
        do {
            if (APR_SUCCESS != (rv = ftp_string_read(ftp_ctrl, bb, response, sizeof(response), &eos, &nread))) {
                return -1;
            }
            mb = apr_cpystrn(mb, response + (' ' == response[0] ? 1 : 4), me - mb);
        } while (memcmp(response, buff, 4) != 0);
    }

    return status;
}

/* this is a filter that turns a raw ASCII directory listing into pretty HTML */