LIBXO(3) FreeBSD Library Functions Manual LIBXO(3)
NAME
xo_syslog, xo_vsyslog, xo_open_log, xo_close_log, xo_set_logmask - create
SYSLOG (RFC5424) log records using libxo formatting
LIBRARY
Text, XML, JSON, and HTML Output Emission Library (libxo, -lxo)
SYNOPSIS
#include <libxo/xo.h>
void
xo_syslog(int pri, const char *name, const char *fmt, ...);
void
xo_vsyslog(int pri, const char *name, const char *fmt, va_list vap);
void
xo_close_log(void);
void
xo_open_log(const char *ident, int logstat, int logfac);
int
xo_set_logmask(int pmask);
DESCRIPTION
The xo_syslog() function creates log entries following the standard
defined in RFC5424. These messages are sent to the log syslogd(8)
daemon, where they can be filtered, forwarded, and archived. libxo
format strings are used to create both the message text and the SD-PARAMS
content, containing name/value pairs that can be parsed by suitable
automation software.
Refer to xo_format(5) for basic information about formatting strings.
xo_syslog encodes all value fields at SD-PARAMS within the syslog
message. An exception is made for fields with the "{d:}" modifier; such
fields appear in the message text only, with fields with the "{e:}"
modifier appear as SD-PARAMS, but not in the message text.
xo_vsyslog() accepts a va_list for additional flexibility.
xo_open_log(), xo_close_log(), and xo_set_logmask() are all analogous to
their libs counterparts, openlog(3), closelog(3), and setlogmask(3). The
extra underscores in the names are unfortunate, but keep consistency in
libxo function names.
EXAMPLES
xo_syslog(LOG_LOCAL4 | LOG_NOTICE, "ID47",
"{e:iut/%u}An {:event-source} {:event-id/%u} log entry",
iut, source, id);
SEE ALSO
xo_syslog(3), xo_set_syslog_enterprise_id(3), xo_format(5), libxo(3)
HISTORY
The libxo library first appeared in FreeBSD 11.0.
AUTHORS
libxo was written by Phil Shafer <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 July 20, 2015 FreeBSD 14.1-RELEASE-p8