| // +build aix darwin dragonfly freebsd linux netbsd openbsd solaris |
| |
| /* |
| Copyright The containerd Authors. |
| |
| 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 containerd |
| |
| import ( |
| "fmt" |
| "strconv" |
| "strings" |
| "syscall" |
| |
| "golang.org/x/sys/unix" |
| ) |
| |
| // ParseSignal parses a given string into a syscall.Signal |
| // the rawSignal can be a string with "SIG" prefix, |
| // or a signal number in string format. |
| func ParseSignal(rawSignal string) (syscall.Signal, error) { |
| s, err := strconv.Atoi(rawSignal) |
| if err == nil { |
| signal := syscall.Signal(s) |
| if unix.SignalName(signal) != "" { |
| return signal, nil |
| } |
| return -1, fmt.Errorf("unknown signal %q", rawSignal) |
| } |
| signal := unix.SignalNum(strings.ToUpper(rawSignal)) |
| if signal == 0 { |
| return -1, fmt.Errorf("unknown signal %q", rawSignal) |
| } |
| return signal, nil |
| } |