For consistency, ./configure generated "config.h" must be the first
header include through out the project.
Signed-off-by: Rainer Gerhards <rgerhards@adiscon.com>
- bugfix: potential segfault in omfile when a dynafile open failed
In that case, a partial cache entry was written, and some internal
pointers (iCurrElt) not correctly updated. In the next iteration, that
could lead to a segfault, especially if iCurrElt then points to the
then-partial record. Not very likely, but could happen in practice.
- bugfix (theoretical): potential segfault in omfile under low memory
condition. This is only a theoretical bug, because it would only
happen when strdup() fails to allocate memory - which is highly
unlikely and will probably lead to all other sorts of errors.
This was not honored by the new ompipe module, because it is a local
file directive (it was applied to pipes as a side-effect of using the
same module for pipes and files...). I now made this a global, so that
semantics are the same as previously. Not really nice, but probably
the best thing to do in the current situation (everything else would
involve much more overhead --- leave that for the new config system).
... based on old omfile. Michael Biebl reported that xconsole seems
to have some issues with the new pipe code, so it was best to use
the old code for pipes. The optimizations were done to speed up file
access, so it doesn't really matter pipes do not receive them.
- improved testbench to contain samples for totally malformed messages
which miss parts of the message content
- bugfix: some malformed messages could lead to a missing LF inside files
or some other missing parts of the template content.
- bugfix: if a message ended immediately with a hostname, the hostname
was mistakenly interpreted as TAG, and localhost be used as hostname
[backported from v5 commit 98d1ed504ec001728955a5bcd7916f64cd85f39f]
This actually was a "recent" regression, but I did not realize that it
was introduced by the performance optimization in v4-devel. Shame on
me for having two devel versions at the same time...
in which debug output can be generated only after the process has started,
but not right from the beginning. This is assumed to be useful for
hard-to-find bugs. Also improved the doc on the debug system.
...for the main queue if an active DA queue existed. This had no relevance
to real deployments (assuming they are not running the debug/diagnostic
module...), but sometimes caused grief and false alerts in the
testbench.
This resulted in wrong values. The most prominent victim was the
directory creation mode, which was set to zero in some cases. For
details, see related blog post:
http://blog.gerhards.net/2009/10/another-note-on-hard-to-find-bugs.html
This replaces the improper bugfix from two commits ago with a proper one.
one-time write to the mode, then all works. However, if no such write
is done, the variable always remains zero. I have used the memory
debugger as well as shuffled the code around and used guard variables
nothing changed. The problem always moved with the changes I did. So
I now consider the one-time write a usable work-around, because it
definitely fixes the issue even though it does not explain why it
happens.
Conflicts:
configure.ac
doc/manual.html
runtime/datetime.h
runtime/parser.c
runtime/rsyslog.h
tools/syslogd.c
v4-stable had a bug with RFC5424-formatted structured data, which showed
was detected by the enhanced automatted testbench of v4-beta.
Note that the orginal (higher version) patch states this happens only
when debugging mode is turned on. That statement is wrong: if debug
mode is turned off, the message is not being emitted, but the division
by zero in the actual parameters still happens.
