This patch adds support to logger for RFC6587 octet counting.
RFC6587 provides support for two sorts of framing:
1. Octet counting (at RFC6587 s3.4.1)
In essence each frame is preceded by a decimal length and a
space.
2. Non-transparent framing (at RFC6587 s3.4.2), also called
'octet stuffing'
In essence each frame is terminated by a `\n`
Prior to this patch, logger used option 2 (non-transparent framing)
on TCP, and used no framing on UDP. After this patch, the default
behaviour is unchanged, but if the '--octet-count' option is supplied,
option 1 is used for both TCP and UDP. Arguably octet count framing
makes little sense on UDP, but some servers provide it and this
allows testing of those servers.
Signed-off-by: Alex Bligh <alex@alex.org.uk>
* force --journal mode to also output to stderr when the option
--stderr specified on command line
* add --no-act to avoid all write() operations to make it possible to
write tests without "spam" system logs
Signed-off-by: Karel Zak <kzak@redhat.com>
Empty log messages are generally considered useless. This option
enables to turn them off when processing files (including stdin).
[kzak@redhat.com: - rename --skip-empty-lines to --skip-empty,
- add the option to getopt_long(),
- add the option to bash-completion]
Signed-off-by: Karel Zak <kzak@redhat.com>
This is an important capability that has been specified in RFC5424.
However, messages larger than 1024 chars are being accepted for years
now by at least rsyslog and syslog-ng.
This patch adds the option --size to permit setting a new max
size, with 1024 being the default.
Note that the size limit is only approximative, as we do not take the
header size in account (RFC talks about total message length).
[[kzak@redhat.com: - add 'S' to getopt_long(),
- rename --message-size to --size
- add the option to bash-completion]
Signed-off-by: Karel Zak <kzak@redhat.com>
With earlier logger it's possible to combine the option -i with other
options, such as -s. But currently:
$:~> logger -is
logger: failed to parse id: 's'
The changed behaviour breaks existing scripts like dhcpcd-run-hooks from
dhcpcd.
Broken-since: aab5b44405
Reference: http://comments.gmane.org/gmane.linux.utilities.util-linux-ng/9683
Reported-by: Juergen Daubert <jue@jue.li>
Reviewed-by: Benno Schulenberg <bensberg@justemail.net>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Hello,
Depending viewpoint this change is either regression fix, or
re-regression in context of none-systemd init. I ack the change is sent
very late to be part of v2.26, but then again the excess noise was found
only because of -rc1 was tested in sysvinit environment. IMHO it would
contradict purpose of having rc's if faults will not lead to fixes.
I also want to point out the sysvinit scripts are broken, not the
logger(1), but getting them corrected is practically impossible.
Assuming sysvinit script are further developed by various teams and
distributions who maintain them they should use --socket-error=on in
future, and write scripts that pass without noise. Meanwhile trying to
be clever when to silence errors seems like a reasonable thing to do.
--->8----
From: Sami Kerola <kerolasa@iki.fi>
Date: Sat, 14 Feb 2015 19:05:55 +0000
Subject: [PATCH] logger: add --socket-errors compatibility option
Now when logger(1) has stopped using openlog() for Unix sockets, in
commit mentioned in reference, the lack of /dev/log detected will report
error accordingly. According to Gabriele Balducci this makes sysvinit
style boot scripts to print a lot of errors. So make the logger to
detect whether it should be in compatibility mode, and not report errors
if logging device is missing. That imitates behavior of glibc openlog().
To allow full control to users the /dev/log error messages can be forced
to on or off. The automatic error messaging is explained in manual page.
Reference: 1d57503378
Reported-by: Gabriele Balducci <balducci@units.it>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Transform some of them into copyright lines.
Also fix three header lines and snip some trailing whitespace.
Signed-off-by: Benno Schulenberg <bensberg@justemail.net>
The message argument is not an option and should not be listed among
those. Describe the optional argument of --rfc5424 better. Use the
= and no space for optional option arguments. Don't italicize words
unnecessarily. Use bold for literal things. And sort the options
alphabetically (apart from -V and -h).
Signed-off-by: Benno Schulenberg <bensberg@justemail.net>
As per the convention shown in Documentation/howto-man-page.txt.
Also make a few other tiny adjustments along the way.
Signed-off-by: Benno Schulenberg <bensberg@justemail.net>
The fact that 'syslog tcp/514' does not exist in RFS's, which has lead
to 'syslog-conn 601/tcp' be used in place could be a suprice and should
be told in manual.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
When scripts send several messages they will be easier to group together
when parent process id is printed rather than id of the each logger
process.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Inform about rfc5424 support, how to control what it includes to
submission, and that it is the new default when sending syslog messages
to remote server without specifying protocol.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This feature is hopefully mostly used to give MESSAGE_ID labels for
messages coming from scripts, making search of messages easy. The
logger(1) manual page update should give enough information how to use
--journald option.
[kzak@redhat.com: - add missing #ifdefs
- use xalloc.h]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Karel Zak <kzak@redhat.com>
This patch adds a new option to logger that will make it look for a
priority prefix <n> at the beginning of every line. The priority is
a single decimal number formed as explained in syslog(3).
If a prefix is found logger will log the message using the found
facility and level in that prefix, if the prefix doesn't contain a
facility the default facility specified by the -p option will be used.
If no prefix is found, logger will use the priority specified by -p.
[kzak@redhat.com: - add --prio-prefix to usage() output]
Signed-off-by: Dennis H Jensen <dennis.h.jensen@siemens.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
This commit fixes error in usage() text, which claimed TCP is default
transport protocol. That was not true, and neither it should be. The
syslog messages has traditionally sent using UDP.
For the logger remains using UDP as first transport, but if it fails a
TCP connection is attempted. If an user wishes remote logging can be
forced to use either UDP or TCP. The service port for UDP is familiar
'syslog', for TCP the port 'syslog-conn' seems like reasonable default.
[kzak@redhat.com: - rename myopenlog to unix_socket(),
- always reset st to -1]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Karel Zak <kzak@redhat.com>
Add two spaces as the required third argument of the date line to make
the specified date get used instead of today's date. Incorporate the
section number into the page title, then use an empty section number,
so that specifying an explicit section/volume name will work.
Signed-off-by: Benno Schulenberg <bensberg@justemail.net>
Use dates without the day, use the full month name, put "util-linux" in
the lower left corner, and "User Commands" or "System Administration"
at the top center.
Also improve here and there the one-line program description.
Signed-off-by: Benno Schulenberg <bensberg@justemail.net>
It adds the ability to logger to log a message to a udp socket. The -n option
followed by the hostname of the remote host is mandatory to do this. The
optional -P option can be used to change the UDP destination port (default
514). The function udpopenlog is used to open the udp socket. After that
everything works in almost the same way like it does when logging to a UNIX
socket.
Signed-off-by: Josef Wuebbels <josef.wuebbels@mtu.de>
Alex Bligh
Karel Zak
Rainer Gerhards
Sami Kerola
Benno Schulenberg
J William Piggott
Ville Skyttä
A. Bram Neijt
Dennis H Jensen
Petr Uzel
WUEBBELS, Josef \(Extern\)
LaMont Jones