Xray-core/common/platform/ctlcmd/ctlcmd.go

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2020-11-25 11:01:53 +00:00
package ctlcmd
import (
"io"
"os"
"os/exec"
"strings"
"github.com/xtls/xray-core/v1/common/buf"
"github.com/xtls/xray-core/v1/common/platform"
)
//go:generate go run github.com/xtls/xray-core/v1/common/errors/errorgen
func Run(args []string, input io.Reader) (buf.MultiBuffer, error) {
xctl := platform.GetToolLocation("xctl")
if _, err := os.Stat(xctl); err != nil {
return nil, newError("xctl doesn't exist").Base(err)
}
var errBuffer buf.MultiBufferContainer
var outBuffer buf.MultiBufferContainer
cmd := exec.Command(xctl, args...)
cmd.Stderr = &errBuffer
cmd.Stdout = &outBuffer
cmd.SysProcAttr = getSysProcAttr()
if input != nil {
cmd.Stdin = input
}
if err := cmd.Start(); err != nil {
return nil, newError("failed to start xctl").Base(err)
}
if err := cmd.Wait(); err != nil {
msg := "failed to execute xctl"
if errBuffer.Len() > 0 {
msg += ": \n" + strings.TrimSpace(errBuffer.MultiBuffer.String())
}
return nil, newError(msg).Base(err)
}
// log stderr, info message
if !errBuffer.IsEmpty() {
newError("<xctl message> \n", strings.TrimSpace(errBuffer.MultiBuffer.String())).AtInfo().WriteToLog()
}
return outBuffer.MultiBuffer, nil
}