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telegraf/plugins/inputs/exec/run_windows.go

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//go:build windows
package exec
import (
"bytes"
"errors"
"fmt"
"io"
"os"
"os/exec"
"syscall"
"github.com/kballard/go-shellquote"
"github.com/influxdata/telegraf/internal"
)
func (c *commandRunner) run(command string) (out, errout []byte, err error) {
splitCmd, err := shellquote.Split(command)
if err != nil || len(splitCmd) == 0 {
return nil, nil, fmt.Errorf("exec: unable to parse command: %w", err)
}
cmd := exec.Command(splitCmd[0], splitCmd[1:]...)
cmd.SysProcAttr = &syscall.SysProcAttr{
CreationFlags: syscall.CREATE_NEW_PROCESS_GROUP,
}
if len(c.environment) > 0 {
cmd.Env = append(os.Environ(), c.environment...)
}
var outbuf, stderr bytes.Buffer
cmd.Stdout = &outbuf
cmd.Stderr = &stderr
runErr := internal.RunTimeout(cmd, c.timeout)
outbuf = removeWindowsCarriageReturns(outbuf)
stderr = removeWindowsCarriageReturns(stderr)
if stderr.Len() > 0 && !c.debug {
truncate(&stderr)
}
return outbuf.Bytes(), stderr.Bytes(), runErr
}
func removeWindowsCarriageReturns(b bytes.Buffer) bytes.Buffer {
var buf bytes.Buffer
for {
byt, err := b.ReadBytes(0x0D)
byt = bytes.TrimRight(byt, "\x0d")
if len(byt) > 0 {
buf.Write(byt)
}
if errors.Is(err, io.EOF) {
return buf
}
}
}