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// Copyright (C) 2016-2017 Luke Shumaker <lukeshu@sbcglobal.net>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sd_login
import (
"strconv"
"strings"
)
func (cgroup _Cgroup) SkipPath(prefix _Cgroup) (_Cgroup, bool) {
//skip: SkipPath(prefix _Cgroup) : SkipPath(prefix)
rest, ok := path_startswith(string(cgroup), string(prefix))
if ok {
return _Cgroup(rest), true
} else {
return cgroup, false
}
}
// Skip (*.slice){1,}
func (cgroup _Cgroup) SkipSlices() (_Cgroup, bool) {
//skip: SkipSlices() : SkipSlices()
cg := string(cgroup)
skipped := false
for {
cg = strings.TrimLeft(cg, "/")
part, rest := split2(cg, '/')
if !valid_slice_name(part) {
return _Cgroup(cg), skipped
}
skipped = true
cg = rest
}
}
// Skip user@*.service
func (cgroup _Cgroup) SkipUserManager() (_Cgroup, bool) {
//skip: SkipUserManager() : SkipUserManager()
part, rest := split2(strings.TrimLeft(string(cgroup), "/"), '/')
uid_str, ok := trimPrefixSuffix(part, "user@", ".service")
if !ok {
return cgroup, false
}
_, err := strconv.Atoi(uid_str)
if err != nil {
return cgroup, false
}
return _Cgroup(rest), true
}
// Skip session-*.scope
func (cgroup _Cgroup) SkipSession() (_Cgroup, bool) {
//skip: SkipSession() : SkipSession()
part, rest := split2(strings.TrimLeft(string(cgroup), "/"), '/')
session, ok := trimPrefixSuffix(part, "session-", ".scope")
if !ok {
return cgroup, false
}
if !valid_session_name(session) {
return cgroup, false
}
return _Cgroup(rest), true
}
// Skip (/*.slice){0,}/(user@*.service|session-*.scope)
func (cgroup _Cgroup) SkipUserPrefix() (_Cgroup, bool) {
//skip: SkipUserPrefix() : SkipUserPrefix()
cgroup, _ = cgroup.SkipSlices()
cgroup, ok := cgroup.SkipUserManager()
if ok {
return cgroup, ok
}
return cgroup.SkipSession()
}
// Skip cgGetRootPath
func (cgroup _Cgroup) SkipSystemPrefix() (_Cgroup, bool) {
//skip: SkipSystemPrefix() : SkipSystemPrefix()
rootpath, err := cgGetRootPath()
if err != nil {
return cgroup, false
}
return cgroup.SkipPath(rootpath)
}
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