writeErrorResponseJSON(ctx, w, importErrorWithAPIErr(ctx, ErrAdminConfigBadJSON, err, userPolicyMappingsFile, ""), r.URL)
				return
			}
			for u, pm := range userPolicyMap {
				// disallow setting policy mapping if user is a temporary user
				ok, _, err := globalIAMSys.IsTempUser(u)
				if err != nil && err != errNoSuchUser {

func checkPathLength(pathName string) error {
	// Apple OS X path length is limited to 1016
	if runtime.GOOS == "darwin" && len(pathName) > 1016 {
		return errFileNameTooLong
	}

	// Disallow more than 1024 characters on windows, there
	// are no known name_max limits on Windows.
	if runtime.GOOS == "windows" && len(pathName) > 1024 {
		return errFileNameTooLong
	}