<div dir="ltr">and there's the $LOGHOST macro which expands to the local hostname<br>bazsi@bzorp:~/zwa/work/syslog-ng-ose-3.4/syslog-ng-ose/lib$ git show 50d3289f<br>commit 50d3289f418f407f592d2b025e989a46840a3f76<br>Author: Balazs Scheidler <<a href="mailto:bazsi@balabit.hu">bazsi@balabit.hu</a>><br>
Date: Thu May 5 21:03:47 2011 +0200<br><br> templates: added $LOGHOST macro<br> <br> This patch adds a new macro "$LOGHOST" which expands to the name of<br> the local hostname, as returned by the hostname command.<br>
<br> Signed-off-by: Andreas Piesk <<a href="mailto:a.piesk@gmx.net">a.piesk@gmx.net</a>><br> Signed-off-by: Balazs Scheidler <<a href="mailto:bazsi@balabit.hu">bazsi@balabit.hu</a>><br><br>diff --git a/lib/templates.c b/lib/templates.c<br>
index 897365c..a3b85cf 100644<br>--- a/lib/templates.c<br>+++ b/lib/templates.c<br>@@ -59,6 +59,8 @@ enum<br> M_SEQNUM,<br> M_CONTEXT_ID,<br> <br>+ M_LOGHOST,<br>+<br> M_DATE,<br> M_FULLDATE,<br> M_ISODATE,<br>
@@ -181,6 +183,9 @@ LogMacroDef macros[] =<br> { "MSG", M_MESSAGE },<br> { "MESSAGE", M_MESSAGE },<br> { "HOST", M_HOST },<br>+<br>+ /* message independent macros */<br>
+ { "LOGHOST", M_LOGHOST },<br> { NULL, 0 }<br> };<br> <br>@@ -414,6 +419,14 @@ log_macro_expand(GString *result, gint id, gboolean escape, LogTemplateOptions *<br> }<br> break;<br>
}<br>+ case M_LOGHOST:<br>+ {<br>+ gsize hname_len;<br>+ const gchar *hname = get_local_hostname(&hname_len);<br>+<br>+ result_append(result, hname, hname_len, escape);<br>+ break;<br>
+ }<br> default:<br> {<br> /* year, month, day */<br><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 17, 2013 at 12:52 PM, Gergely Nagy <span dir="ltr"><<a href="mailto:algernon@balabit.hu" target="_blank">algernon@balabit.hu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">Evan Rempel <<a href="mailto:erempel@uvic.ca">erempel@uvic.ca</a>> writes:<br>
<br>
> First thing is that the confgen module is not in the documentation :-(<br>
<br>
</div>It's not easy to document it :)<br>
<div class="im"><br>
> Second thing is that I am having problems using the confgen module<br>
><br>
><br>
> @module confgen context(source) name(myself) exec("/bin/hostname")<br>
> source primary { tcp( localip( myself() ) port(514) ); };<br>
> log { source(primary); destination(d_my_dest); };<br>
><br>
><br>
> works like a charm and listens on the IP address of my hosts primary interface.<br>
><br>
> But this will not work.<br>
><br>
> @module confgen context(source) name(myself) exec("/bin/hostname")<br>
> source self { tcp(localip(localhost) port(1514) );<br>
> };<br>
> rewrite r_self {<br>
> set( "myself()", value("HOST") );<br>
> };<br>
> log {<br>
> source(self); rewrite(r_self);<br>
> };<br>
<br>
</div>In the second case, you will have to change the context(source) to<br>
context(rewrite), and unquote myself().<br>
<br>
You can test the expansion with:<br>
syslog-ng -s --preprocess-into=/dev/stdout -f /path/to/syslog-ng.conf<br>
<br>
With the context changed and myself() unquoted, the above expands to:<br>
<br>
,----<br>
| @module confgen context(rewrite) name(myself) exec("/bin/hostname")<br>
<div class="im">| source self { tcp(localip(localhost) port(1514) );<br>
| };<br>
| rewrite r_self {<br>
</div>| set( hadhodrond<br>
<div class="im">| , value("HOST") );<br>
| }};<br>
| log {<br>
| source(self); rewrite(r_self);<br>
| };<br>
</div>`----<br>
<br>
That should work, I think, but I haven't tested it.<br>
<br>
The basic idea behind confgen, though, is that it generates<br>
syslog-ng.conf snippets, which are then inserted into the buffer as if<br>
it was there like that to begin with, so the parser will go through it<br>
too.<br>
<div class="im"><br>
> What I am trying to do is accept TCP connections from applications on the host, and change the SOURCEHOST to<br>
> be the actual host name rather than the text "localhost".<br>
<br>
</div>I'd probably do it in a very different way: using template(), because<br>
that's more efficient than rewrite.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
|8]<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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<br>
</div></div></blockquote></div><br><br clear="all"><br>-- <br>Bazsi
</div>