/
syslog.go
61 lines (53 loc) · 1.72 KB
/
syslog.go
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// Copyright Fuzamei Corp. 2018 All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !windows && !plan9
// +build !windows,!plan9
package log15
import (
"io"
"log/syslog"
"strings"
)
// SyslogHandler opens a connection to the system syslog daemon by calling
// syslog.New and writes all records to it.
func SyslogHandler(priority syslog.Priority, tag string, fmtr Format) (Handler, error) {
wr, err := syslog.New(priority, tag)
return sharedSyslog(fmtr, wr, err)
}
// SyslogNetHandler opens a connection to a log daemon over the network and writes
// all log records to it.
func SyslogNetHandler(net, addr string, priority syslog.Priority, tag string, fmtr Format) (Handler, error) {
wr, err := syslog.Dial(net, addr, priority, tag)
return sharedSyslog(fmtr, wr, err)
}
func sharedSyslog(fmtr Format, sysWr io.WriteCloser, err error) (Handler, error) {
if err != nil {
return nil, err
}
wr := sysWr.(*syslog.Writer)
h := FuncHandler(int(LvlDebug), func(r *Record) error {
var syslogFn = wr.Info
switch r.Lvl {
case LvlCrit:
syslogFn = wr.Crit
case LvlError:
syslogFn = wr.Err
case LvlWarn:
syslogFn = wr.Warning
case LvlInfo:
syslogFn = wr.Info
case LvlDebug:
syslogFn = wr.Debug
}
s := strings.TrimSpace(string(fmtr.Format(r)))
return syslogFn(s)
})
return LazyHandler(&closingHandler{sysWr, h}), nil
}
func (m muster) SyslogHandler(priority syslog.Priority, tag string, fmtr Format) Handler {
return must(SyslogHandler(priority, tag, fmtr))
}
func (m muster) SyslogNetHandler(net, addr string, priority syslog.Priority, tag string, fmtr Format) Handler {
return must(SyslogNetHandler(net, addr, priority, tag, fmtr))
}