| // Copyright 2015 CoreOS, Inc. |
| // |
| // 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 activation |
| |
| import ( |
| "net" |
| ) |
| |
| // PacketConns returns a slice containing a net.PacketConn for each matching socket type |
| // passed to this process. |
| // |
| // The order of the file descriptors is preserved in the returned slice. |
| // Nil values are used to fill any gaps. For example if systemd were to return file descriptors |
| // corresponding with "udp, tcp, udp", then the slice would contain {net.PacketConn, nil, net.PacketConn} |
| func PacketConns(unsetEnv bool) ([]net.PacketConn, error) { |
| files := Files(unsetEnv) |
| conns := make([]net.PacketConn, len(files)) |
| |
| for i, f := range files { |
| if pc, err := net.FilePacketConn(f); err == nil { |
| conns[i] = pc |
| } |
| } |
| return conns, nil |
| } |
