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43 lines
939 B
Go
43 lines
939 B
Go
// SPDX-License-Identifier: BSD-3-Clause
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//go:build linux || freebsd || darwin || openbsd
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package common
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import (
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"context"
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"errors"
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"os/exec"
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"strconv"
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"strings"
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)
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func CallLsofWithContext(ctx context.Context, invoke Invoker, pid int32, args ...string) ([]string, error) {
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var cmd []string
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if pid == 0 { // will get from all processes.
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cmd = []string{"-a", "-n", "-P"}
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} else {
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cmd = []string{"-a", "-n", "-P", "-p", strconv.Itoa(int(pid))}
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}
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cmd = append(cmd, args...)
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out, err := invoke.CommandWithContext(ctx, "lsof", cmd...)
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if err != nil {
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if errors.Is(err, exec.ErrNotFound) {
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return []string{}, err
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}
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// if no pid found, lsof returns code 1.
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if err.Error() == "exit status 1" && len(out) == 0 {
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return []string{}, nil
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}
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}
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lines := strings.Split(string(out), "\n")
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var ret []string
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for _, l := range lines[1:] {
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if len(l) == 0 {
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continue
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}
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ret = append(ret, l)
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}
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return ret, nil
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}
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