--- build-tree/apache2/modules/loggers/mod_logio.c 2006-07-12 03:38:44.000000000 +0000
+++ build-tree/apache2/modules/loggers/mod_logio.c 2007-05-07 18:08:02.000000000 +0000
@@ -23,6 +23,8 @@
  *
  * %...I:  bytes received, including request and headers, cannot be zero
  * %...O:  bytes sent, including headers, cannot be zero
+ * %...S:  sum of bytes sent and received, including request and headers,
+ *         cannot be zero
  *
  */

@@ -53,6 +55,7 @@
 typedef struct logio_config_t {
     apr_off_t bytes_in;
     apr_off_t bytes_out;
+    apr_off_t bytes_sum;
 } logio_config_t;

 /*
@@ -85,6 +88,14 @@
     return apr_off_t_toa(r->pool, cf->bytes_out);
 }

+static const char *log_bytes_sum(request_rec *r, char *a)
+{
+    logio_config_t *cf = ap_get_module_config(r->connection->conn_config,
+                                              &logio_module);
+
+    return apr_off_t_toa(r->pool, (cf->bytes_in+cf->bytes_out));
+}
+
 /*
  * Reset counters after logging...
  */
@@ -94,7 +105,7 @@
     logio_config_t *cf = ap_get_module_config(r->connection->conn_config,
                                               &logio_module);

-    cf->bytes_in = cf->bytes_out = 0;
+    cf->bytes_in = cf->bytes_out = cf->bytes_sum = 0;

     return OK;
 }
@@ -159,6 +170,7 @@
     if (log_pfn_register) {
         log_pfn_register(p, "I", log_bytes_in, 0);
         log_pfn_register(p, "O", log_bytes_out, 0);
+        log_pfn_register(p, "S", log_bytes_sum, 0);
     }

     return OK;