On Thu, Feb 18, 1999, Roman Maeder wrote:
> I am encountering the following problem with using the %{variable}x
> LogFormat extension from mod_ssl-2.2.2-1.3.4. When the variable is
> not defined, for example %{SSL_CLIENT_S_DN}x for an SSL connection that
> is not authenticated with a client certificate, nothing is printed in
> the logfile. But on the other hand, when directives, such as
> %b (number of bytes sent) or %{Referer}i (the refer(r)er field) have
> no value, Apache prints a - sign. Is this also possible with "x"?
Yes, you're right, my ssl_lookup_variable() function has a reasonable
if (result == NULL)
result = "";
at the end which I overlooked when I implemented the extension for
mod_log_config (which wants a NULL to indicate an empty expension). So, to let
not available variables expand to "-" instead of "", you've to apply the
following patch which I'll commit for mod_ssl 2.2.3:
Index: ssl_engine_ext.c
===================================================================
RCS file:
/e/apache/SSL/REPOS/mod_ssl/pkg.apache/src/modules/ssl/ssl_engine_ext.c,v
retrieving revision 1.14
diff -u -r1.14 ssl_engine_ext.c
--- ssl_engine_ext.c 1999/01/21 14:21:59 1.14
+++ ssl_engine_ext.c 1999/02/19 10:17:31
@@ -161,6 +161,8 @@
result = NULL;
if (ap_ctx_get(r->connection->client->ctx, "ssl") != NULL)
result = ssl_var_lookup(r->pool, r->server, r->connection, r, a);
+ if (result != NULL && result[0] == NUL)
+ result = NULL;
return result;
}
Ralf S. Engelschall
[EMAIL PROTECTED]
www.engelschall.com
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