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 <phil@freebsd.org>.

FreeBSD 13.1-RELEASE-p6          July 20, 2015         FreeBSD 13.1-RELEASE-p6