[syslog-ng]1.9.3 bug proposal : resolving $HOSTS in destination

[Gilles Demarty]

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We have an issue on syslog-ng 1.9.3 on this following case :

when using the destination :

destination d_tag {file("/var/log/hosts/$HOST/$FACILITY 
$YEAR-$MONTH-$DAY.$LEVEL");};

the following error appeared :

Error opening file for writing; error='No such file or directory (2)', 
filename='localhost/var/log/hosts//mail 2005-02-28.notice'

The resolved filename looks bugged.

Here are the revelant debugging infos :

Incoming log entry; line='<21>Feb 28 15:24:46 logger: test'
Initializing destination file writer; filename='/var/log/messages', 
template='/var/log/messages'
Initializing destination file writer; 
filename='localhost/var/log/hosts//mail 2005-02-28.notice', 
template='/var/log/hosts/$HOST/$FACILITY $YEAR-$MONTH-$DAY.$LEVEL'
Error opening file for writing; error='No such file or directory (2)', 
filename='localhost/var/log/hosts//mail 2005-02-28.notice'

This bug produce rapidly a 99% CPU load, mainly because all the sources 
are redirected to this "destination".

syslog-ng 1.6.4 don't produce the bug.

Attached is syslog-ng.conf that produce the bug. (ASCII \r\n format, sorry).




-- 
Gilles DEMARTY
ExaProtect Technology
Tél: +33 (0) 4 26 23 25 25
Fax: +33 (0) 4 26 29 99 09
email(at)exaprotect.com
www.exaprotect.com - "Be alert with your alerts"

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 name="syslog-ng.conf"
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 filename="syslog-ng.conf"

options { sync(0);
        create_dirs(on);
        time_reopen (10);
        log_fifo_size(1000);
        long_hostnames (off);
        keep_hostname (yes);
        use_dns (off);
        use_fqdn (off);

	};

source s_sys { 	pipe ("/proc/kmsg" log_prefix("kernel: ")); 
		unix-stream ("/dev/log"); 
		internal(); 
	};
source src { 	udp(ip(0.0.0.0));
	};

destination d_tag { file("/var/log/hosts/$HOST/$FACILITY $YEAR-$MONTH-$DAY.$LEVEL");
	};
destination d_dest {file("/var/log/messages");
	};

log {	source(s_sys);
	source(src); 
	destination(d_dest);
	};

log {	source(s_sys);
 	source(src); 
	destination(d_tag);
	};

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