mirror of
https://github.com/DNSCrypt/dnscrypt-proxy.git
synced 2024-12-29 00:30:30 +01:00
124 lines
3.0 KiB
Go
124 lines
3.0 KiB
Go
// +build linux darwin dragonfly freebsd netbsd openbsd solaris
|
|
|
|
package gsyslog
|
|
|
|
import (
|
|
"fmt"
|
|
"log/syslog"
|
|
"strings"
|
|
)
|
|
|
|
// builtinLogger wraps the Golang implementation of a
|
|
// syslog.Writer to provide the Syslogger interface
|
|
type builtinLogger struct {
|
|
*builtinWriter
|
|
}
|
|
|
|
// NewLogger is used to construct a new Syslogger
|
|
func NewLogger(p Priority, facility, tag string) (Syslogger, error) {
|
|
fPriority, err := facilityPriority(facility)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
priority := syslog.Priority(p) | fPriority
|
|
l, err := newBuiltin(priority, tag)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &builtinLogger{l}, nil
|
|
}
|
|
|
|
// DialLogger is used to construct a new Syslogger that establishes connection to remote syslog server
|
|
func DialLogger(network, raddr string, p Priority, facility, tag string) (Syslogger, error) {
|
|
fPriority, err := facilityPriority(facility)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
priority := syslog.Priority(p) | fPriority
|
|
|
|
l, err := dialBuiltin(network, raddr, priority, tag)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &builtinLogger{l}, nil
|
|
}
|
|
|
|
// WriteLevel writes out a message at the given priority
|
|
func (b *builtinLogger) WriteLevel(p Priority, buf []byte) error {
|
|
var err error
|
|
m := string(buf)
|
|
switch p {
|
|
case LOG_EMERG:
|
|
_, err = b.writeAndRetry(syslog.LOG_EMERG, m)
|
|
case LOG_ALERT:
|
|
_, err = b.writeAndRetry(syslog.LOG_ALERT, m)
|
|
case LOG_CRIT:
|
|
_, err = b.writeAndRetry(syslog.LOG_CRIT, m)
|
|
case LOG_ERR:
|
|
_, err = b.writeAndRetry(syslog.LOG_ERR, m)
|
|
case LOG_WARNING:
|
|
_, err = b.writeAndRetry(syslog.LOG_WARNING, m)
|
|
case LOG_NOTICE:
|
|
_, err = b.writeAndRetry(syslog.LOG_NOTICE, m)
|
|
case LOG_INFO:
|
|
_, err = b.writeAndRetry(syslog.LOG_INFO, m)
|
|
case LOG_DEBUG:
|
|
_, err = b.writeAndRetry(syslog.LOG_DEBUG, m)
|
|
default:
|
|
err = fmt.Errorf("Unknown priority: %v", p)
|
|
}
|
|
return err
|
|
}
|
|
|
|
// facilityPriority converts a facility string into
|
|
// an appropriate priority level or returns an error
|
|
func facilityPriority(facility string) (syslog.Priority, error) {
|
|
facility = strings.ToUpper(facility)
|
|
switch facility {
|
|
case "KERN":
|
|
return syslog.LOG_KERN, nil
|
|
case "USER":
|
|
return syslog.LOG_USER, nil
|
|
case "MAIL":
|
|
return syslog.LOG_MAIL, nil
|
|
case "DAEMON":
|
|
return syslog.LOG_DAEMON, nil
|
|
case "AUTH":
|
|
return syslog.LOG_AUTH, nil
|
|
case "SYSLOG":
|
|
return syslog.LOG_SYSLOG, nil
|
|
case "LPR":
|
|
return syslog.LOG_LPR, nil
|
|
case "NEWS":
|
|
return syslog.LOG_NEWS, nil
|
|
case "UUCP":
|
|
return syslog.LOG_UUCP, nil
|
|
case "CRON":
|
|
return syslog.LOG_CRON, nil
|
|
case "AUTHPRIV":
|
|
return syslog.LOG_AUTHPRIV, nil
|
|
case "FTP":
|
|
return syslog.LOG_FTP, nil
|
|
case "LOCAL0":
|
|
return syslog.LOG_LOCAL0, nil
|
|
case "LOCAL1":
|
|
return syslog.LOG_LOCAL1, nil
|
|
case "LOCAL2":
|
|
return syslog.LOG_LOCAL2, nil
|
|
case "LOCAL3":
|
|
return syslog.LOG_LOCAL3, nil
|
|
case "LOCAL4":
|
|
return syslog.LOG_LOCAL4, nil
|
|
case "LOCAL5":
|
|
return syslog.LOG_LOCAL5, nil
|
|
case "LOCAL6":
|
|
return syslog.LOG_LOCAL6, nil
|
|
case "LOCAL7":
|
|
return syslog.LOG_LOCAL7, nil
|
|
default:
|
|
return 0, fmt.Errorf("invalid syslog facility: %s", facility)
|
|
}
|
|
}
|