github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/firewall/ipset/ipset.go (about)

     1  /*
     2   * Copyright (C) 2020 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program is free software: you can redistribute it and/or modify
     5   * it under the terms of the GNU General Public License as published by
     6   * the Free Software Foundation, either version 3 of the License, or
     7   * (at your option) any later version.
     8   *
     9   * This program is distributed in the hope that it will be useful,
    10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12   * GNU General Public License for more details.
    13   *
    14   * You should have received a copy of the GNU General Public License
    15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package ipset
    19  
    20  import (
    21  	"bufio"
    22  	"bytes"
    23  
    24  	"github.com/mysteriumnetwork/node/utils/cmdutil"
    25  	"github.com/pkg/errors"
    26  )
    27  
    28  // Exec activates given args
    29  var Exec = defaultExec
    30  
    31  func defaultExec(args []string) ([]string, error) {
    32  	args = append([]string{"sudo", "ipset"}, args...)
    33  	output, err := cmdutil.ExecOutput(args...)
    34  	if err != nil {
    35  		return nil, errors.Wrap(err, "ipset cmd error")
    36  	}
    37  
    38  	outputScanner := bufio.NewScanner(bytes.NewBufferString(output))
    39  	var lines []string
    40  	for outputScanner.Scan() {
    41  		lines = append(lines, outputScanner.Text())
    42  	}
    43  	return lines, outputScanner.Err()
    44  }