Add missing IPE file

package onem2m

import (

	"fmt"

	"net/http"

	"strconv"

)

// oneM2M Response Status Codes (TS-0004) treated as success for create operations

const (

	RscCreated                        = 2001

	RscConflict                       = 4105

	RscOriginatorHasAlreadyRegistered = 4117

)

// responseRSC extracts the oneM2M Response Status Code from the X-M2M-RSC header

func responseRSC(resp *http.Response) (int, error) {

	value := resp.Header.Get("X-M2M-RSC")

	if value == "" {

		return 0, fmt.Errorf("missing X-M2M-RSC header (HTTP status %d)", resp.StatusCode)

	}

	rsc, err := strconv.Atoi(value)

	if err != nil {

		return 0, fmt.Errorf("invalid X-M2M-RSC header %q: %v", value, err)

	}

	return rsc, nil

}

// isCreateSuccess reports whether an RSC is considered a successful create

func isCreateSuccess(rsc int) bool {

	return rsc == RscCreated || rsc == RscConflict || rsc == RscOriginatorHasAlreadyRegistered

}