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Solaris specific syslog support.

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From-SVN: r170837
This commit is contained in:
Ian Lance Taylor 2011-03-09 22:13:09 +00:00
parent db7ec03597
commit bef18456b7
6 changed files with 147 additions and 36 deletions
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23
libgo/Makefile.am
View File

@ -787,8 +787,15 @@ go_sync_files = \
go_sync_c_files = \
go/sync/cas.c
if LIBGO_IS_SOLARIS
go_syslog_file = go/syslog/syslog_solaris.go
else
go_syslog_file = go/syslog/syslog_unix.go
endif
go_syslog_files = \
go/syslog/syslog.go
go/syslog/syslog.go \
$(go_syslog_file)
go_tabwriter_files = \
go/tabwriter/tabwriter.go
@ -1785,10 +1792,14 @@ sync/check: $(CHECK_DEPS)
$(CHECK)
.PHONY: sync/check
syslog/libsyslog.$(OBJEXT): $(go_syslog_files) fmt.gox log.gox net.gox os.gox
$(BUILDPACKAGE)
syslog/libsyslog.lo: syslog/libsyslog.$(OBJEXT)
syslog/libsyslog.la: syslog/libsyslog.lo
syslog/syslog.$(OBJEXT): $(go_syslog_files) fmt.gox log.gox net.gox os.gox \
syscall.gox
test -d syslog || $(MKDIR_P) syslog
$(LTGOCOMPILE) -I . -c -o $@ -fgo-prefix=libgo_syslog $(srcdir)/go/syslog/syslog.go $(srcdir)/$(go_syslog_file)
syslog/syslog_c.$(OBJEXT): $(srcdir)/go/syslog/syslog_c.c syslog/syslog.$(OBJEXT)
$(LTCOMPILE) -c -o $@ $(srcdir)/go/syslog/syslog_c.c
syslog/libsyslog.la: syslog/syslog.$(OBJEXT) syslog/syslog_c.$(OBJEXT)
$(LINK) syslog/syslog.lo syslog/syslog_c.lo
syslog/check: $(CHECK_DEPS)
$(CHECK)
.PHONY: syslog/check
@ -2733,7 +2744,7 @@ strings.gox: strings/libstrings.$(OBJEXT)
$(BUILDGOX)
sync.gox: sync/mutex.$(OBJEXT)
$(BUILDGOX)
syslog.gox: syslog/libsyslog.$(OBJEXT)
syslog.gox: syslog/syslog.$(OBJEXT)
$(BUILDGOX)
syscall.gox: syscalls/syscall.$(OBJEXT)
$(BUILDGOX)

19
libgo/Makefile.in
View File

@ -1139,8 +1139,11 @@ go_sync_files = \
go_sync_c_files = \
go/sync/cas.c
@LIBGO_IS_SOLARIS_FALSE@go_syslog_file = go/syslog/syslog_unix.go
@LIBGO_IS_SOLARIS_TRUE@go_syslog_file = go/syslog/syslog_solaris.go
go_syslog_files = \
go/syslog/syslog.go
go/syslog/syslog.go \
$(go_syslog_file)
go_tabwriter_files = \
go/tabwriter/tabwriter.go
@ -4163,10 +4166,14 @@ sync/check: $(CHECK_DEPS)
$(CHECK)
.PHONY: sync/check
syslog/libsyslog.$(OBJEXT): $(go_syslog_files) fmt.gox log.gox net.gox os.gox
$(BUILDPACKAGE)
syslog/libsyslog.lo: syslog/libsyslog.$(OBJEXT)
syslog/libsyslog.la: syslog/libsyslog.lo
syslog/syslog.$(OBJEXT): $(go_syslog_files) fmt.gox log.gox net.gox os.gox \
syscall.gox
test -d syslog || $(MKDIR_P) syslog
$(LTGOCOMPILE) -I . -c -o $@ -fgo-prefix=libgo_syslog $(srcdir)/go/syslog/syslog.go $(srcdir)/$(go_syslog_file)
syslog/syslog_c.$(OBJEXT): $(srcdir)/go/syslog/syslog_c.c syslog/syslog.$(OBJEXT)
$(LTCOMPILE) -c -o $@ $(srcdir)/go/syslog/syslog_c.c
syslog/libsyslog.la: syslog/syslog.$(OBJEXT) syslog/syslog_c.$(OBJEXT)
$(LINK) syslog/syslog.lo syslog/syslog_c.lo
syslog/check: $(CHECK_DEPS)
$(CHECK)
.PHONY: syslog/check
@ -5107,7 +5114,7 @@ strings.gox: strings/libstrings.$(OBJEXT)
$(BUILDGOX)
sync.gox: sync/mutex.$(OBJEXT)
$(BUILDGOX)
syslog.gox: syslog/libsyslog.$(OBJEXT)
syslog.gox: syslog/syslog.$(OBJEXT)
$(BUILDGOX)
syscall.gox: syscalls/syscall.$(OBJEXT)
$(BUILDGOX)

54
libgo/go/syslog/syslog.go
View File

@ -34,7 +34,17 @@ const (
type Writer struct {
priority Priority
prefix string
conn net.Conn
conn serverConn
}
type serverConn interface {
writeBytes(p Priority, prefix string, b []byte) (int, os.Error)
writeString(p Priority, prefix string, s string) (int, os.Error)
close() os.Error
}
type netConn struct {
conn net.Conn
}
// New establishes a new connection to the system log daemon.
@ -52,46 +62,30 @@ func Dial(network, raddr string, priority Priority, prefix string) (w *Writer, e
if prefix == "" {
prefix = os.Args[0]
}
var conn net.Conn
var conn serverConn
if network == "" {
conn, err = unixSyslog()
} else {
conn, err = net.Dial(network, "", raddr)
var c net.Conn
c, err = net.Dial(network, "", raddr)
conn = netConn{c}
}
return &Writer{priority, prefix, conn}, err
}
func unixSyslog() (conn net.Conn, err os.Error) {
logTypes := []string{"unixgram", "unix"}
logPaths := []string{"/dev/log", "/var/run/syslog"}
var raddr string
for _, network := range logTypes {
for _, path := range logPaths {
raddr = path
conn, err := net.Dial(network, "", raddr)
if err != nil {
continue
} else {
return conn, nil
}
}
}
return nil, os.ErrorString("Unix syslog delivery error")
}
// Write sends a log message to the syslog daemon.
func (w *Writer) Write(b []byte) (int, os.Error) {
if w.priority > LOG_DEBUG || w.priority < LOG_EMERG {
return 0, os.EINVAL
}
return fmt.Fprintf(w.conn, "<%d>%s: %s\n", w.priority, w.prefix, b)
return w.conn.writeBytes(w.priority, w.prefix, b)
}
func (w *Writer) writeString(p Priority, s string) (int, os.Error) {
return fmt.Fprintf(w.conn, "<%d>%s: %s\n", p, w.prefix, s)
return w.conn.writeString(p, w.prefix, s)
}
func (w *Writer) Close() os.Error { return w.conn.Close() }
func (w *Writer) Close() os.Error { return w.conn.close() }
// Emerg logs a message using the LOG_EMERG priority.
func (w *Writer) Emerg(m string) (err os.Error) {
@ -131,6 +125,18 @@ func (w *Writer) Debug(m string) (err os.Error) {
return err
}
func (n netConn) writeBytes(p Priority, prefix string, b []byte) (int, os.Error) {
return fmt.Fprintf(n.conn, "<%d>%s: %s\n", p, prefix, b)
}
func (n netConn) writeString(p Priority, prefix string, s string) (int, os.Error) {
return fmt.Fprintf(n.conn, "<%d>%s: %s\n", p, prefix, s)
}
func (n netConn) close() os.Error {
return n.conn.Close()
}
// NewLogger provides an object that implements the full log.Logger interface,
// but sends messages to Syslog instead; flag is passed as is to Logger;
// priority will be used for all messages sent using this interface.

19
libgo/go/syslog/syslog_c.c Normal file
View File

@ -0,0 +1,19 @@
/* syslog_c.c -- call syslog for Go.
Copyright 2011 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include <syslog.h>
/* We need to use a C function to call the syslog function, because we
can't represent a C varargs function in Go. */
void syslog_c(int, const char*)
asm ("libgo_syslog.syslog.syslog_c");
void
syslog_c (int priority, const char *msg)
{
syslog (priority, "%s", msg);
}

37
libgo/go/syslog/syslog_solaris.go Normal file
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@ -0,0 +1,37 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// gccgo specific implementation of syslog for Solaris. Solaris uses
// STREAMS to communicate with syslogd. That is enough of a pain that
// we just call the libc function.
package syslog
import (
"fmt"
"os"
"syscall"
)
func unixSyslog() (conn serverConn, err os.Error) {
return libcConn(0), nil
}
type libcConn int
func syslog_c(int, *byte)
func (libcConn) writeBytes(p Priority, prefix string, b []byte) (int, os.Error) {
syslog_c(int(p), syscall.StringBytePtr(fmt.Sprintf("%s: %s", prefix, b)))
return len(b), nil
}
func (libcConn) writeString(p Priority, prefix string, s string) (int, os.Error) {
syslog_c(int(p), syscall.StringBytePtr(fmt.Sprintf("%s: %s", prefix, s)))
return len(s), nil
}
func (libcConn) close() os.Error {
return nil
}

31
libgo/go/syslog/syslog_unix.go Normal file
View File

@ -0,0 +1,31 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package syslog
import (
"net"
"os"
)
// unixSyslog opens a connection to the syslog daemon running on the
// local machine using a Unix domain socket.
func unixSyslog() (conn serverConn, err os.Error) {
logTypes := []string{"unixgram", "unix"}
logPaths := []string{"/dev/log", "/var/run/syslog"}
var raddr string
for _, network := range logTypes {
for _, path := range logPaths {
raddr = path
conn, err := net.Dial(network, "", raddr)
if err != nil {
continue
} else {
return netConn{conn}, nil
}
}
}
return nil, os.ErrorString("Unix syslog delivery error")
}