x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
SD_JOURNAL_GET_CATALOG(3) sd_journal_get_catalog SD_JOURNAL_GET_CATALOG(3)
NAME
sd_journal_get_catalog, sd_journal_get_catalog_for_message_id -
Retrieve message catalog entry
SYNOPSIS
#include <systemd/sd-journal.h>
int sd_journal_get_catalog(sd_journal *j, char **ret);
int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret);
DESCRIPTION
sd_journal_get_catalog() 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.
sd_journal_get_catalog_for_message_id() works similar to
sd_journal_get_catalog() 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.
For more information about the journal message catalog please refer to
the Journal Message Catalogs[1] documentation page.
RETURN VALUE
sd_journal_get_catalog() and sd_journal_get_catalog_for_message_id()
return 0 on success or a negative errno-style error code. If no
matching message catalog entry is found, -ENOENT is returned.
On successful return, ret points to a new string, which must be freed
with free(3).
NOTES
Function sd_journal_get_catalog() is thread-agnostic and only a single
specific thread may operate on a given object during its entire
lifetime. It's safe to allocate multiple independent objects and use
each from a specific thread in parallel. However, it's not safe to
allocate such an object in one thread, and operate or free it from any
other, even if locking is used to ensure these threads don't operate on
it at the very same time.
Function sd_journal_get_catalog_for_message_id() is are thread-safe and
may be called in parallel from multiple threads.
Functions described here are available as a shared library, which can
be compiled against and linked to with the libsystemd pkg-config(1)
file.
SEE ALSO
systemd(1), systemd.journal-fields(7), sd-journal(3),
sd_journal_open(3), sd_journal_next(3), sd_journal_get_data(3),
malloc(3)
NOTES
1. Journal Message Catalogs
https://www.freedesktop.org/wiki/Software/systemd/catalog
systemd 254 SD_JOURNAL_GET_CATALOG(3)
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