apr_status_t ssl_read_socket()

in flood_net_ssl.c [240:279]

• 33 lines of code
• 9 McCabe index (conditional complexity)

apr_status_t ssl_read_socket(ssl_socket_t *s, char *buf, apr_size_t *buflen)
{
    apr_status_t e;
    int sslError;
    apr_int32_t socketsRead;

    /* Wait until there is something to read. */
    if (SSL_pending(s->ssl_connection) < *buflen) {
        e = apr_poll(&s->socket->read_pollset, 1, &socketsRead,
                     LOCAL_SOCKET_TIMEOUT);

        if (socketsRead != 1)
            return APR_TIMEUP;
    }

    e = SSL_read(s->ssl_connection, buf, *buflen);
    sslError = SSL_get_error(s->ssl_connection, e);

    switch (sslError)
    {
    case SSL_ERROR_NONE:
        *buflen = e;
        break;
    case SSL_ERROR_WANT_READ:
        ssl_read_socket(s, buf, buflen);
        break;
    case SSL_ERROR_ZERO_RETURN: /* Peer closed connection. */
        return APR_EOF; 
    case SSL_ERROR_SYSCALL: /* Look at errno. */
        if (errno == 0)
            return APR_EOF;
        /* Continue through with the error case. */   
    case SSL_ERROR_WANT_WRITE:  /* Technically, not an error. */
    default:
        ERR_print_errors_fp(stderr);
        return APR_EGENERAL; 
    }

    return APR_SUCCESS;
}