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'\" t
.TH "SD_JOURNAL_GET_CATALOG" "3" "" "systemd 208" "sd_journal_get_catalog"
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.\" * Define some portability stuff
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.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.ie \n(.g .ds Aq \(aq
.el .ds Aq '
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.\" * set default formatting
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.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
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.\" * MAIN CONTENT STARTS HERE *
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.SH "NAME"
sd_journal_get_catalog, sd_journal_get_catalog_for_message_id \- Retrieve message catalog entry
.SH "SYNOPSIS"
.sp
.ft B
.nf
#include <systemd/sd\-journal\&.h>
.fi
.ft
.HP \w'int\ sd_journal_get_catalog('u
.BI "int sd_journal_get_catalog(sd_journal*\ " "j" ", char**\ " "ret" ");"
.HP \w'int\ sd_journal_get_catalog_for_message_id('u
.BI "int sd_journal_get_catalog_for_message_id(sd_id128_t\ " "id" ", char**\ " "ret" ");"
.SH "DESCRIPTION"
.PP
\fBsd_journal_get_catalog()\fR
retrieves a message catalog entry for the current journal entry\&. This will look up an entry in the message catalog by using the
"MESSAGE_ID="
field of the current journal entry\&. Before returning the entry all journal field names in the catalog entry text enclosed in "@" will be replaced by the respective field values of the current entry\&. If a field name referenced in the message catalog entry does not exist, in the current journal entry, the "@" will be removed, but the field name otherwise left untouched\&.
.PP
\fBsd_journal_get_catalog_for_message_id()\fR
works similar to
\fBsd_journal_get_catalog()\fR
but the entry is looked up by the specified message ID (no open journal context is necessary for this), and no field substitution is performed\&.
.PP
For more information about the journal message catalog please refer to the
\m[blue]\fBJournal Message Catalogs\fR\m[]\&\s-2\u[1]\d\s+2
documentation page\&.
.SH "RETURN VALUE"
.PP
\fBsd_journal_get_catalog()\fR
and
\fBsd_journal_get_catalog_for_message_id()\fR
return 0 on success or a negative errno\-style error code\&. If no matching message catalog entry is found, \-ENOENT is returned\&.
.PP
On successful return,
\fIret\fR
points to a new string, which must be freed with
\fBfree\fR(3)\&.
.SH "NOTES"
.PP
The
\fBsd_journal_get_catalog()\fR
and
\fBsd_journal_get_catalog_for_message_id()\fR
interfaces are available as shared library, which can be compiled and linked to with the
\fBlibsystemd\-journal\fR\ \&\fBpkg-config\fR(1)
file\&.
.SH "SEE ALSO"
.PP
\fBsystemd\fR(1),
\fBsystemd.journal-fields\fR(7),
\fBsd-journal\fR(3),
\fBsd_journal_open\fR(3),
\fBsd_journal_next\fR(3),
\fBsd_journal_get_data\fR(3)\fBmalloc\fR(3)
.SH "NOTES"
.IP " 1." 4
Journal Message Catalogs
.RS 4
\%http://www.freedesktop.org/wiki/Software/systemd/catalog
.RE
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