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Add debug to iptables

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This commit is contained in:
Guillaume J. Charmes 2013-11-06 07:37:43 -08:00
parent ff8a4ba0aa
commit 00f1398f7a
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1 changed files with 4 additions and 1 deletions
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5
iptables/iptables.go
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@ -4,6 +4,7 @@ import (
"errors"
"fmt"
"net"
"os"
"os/exec"
"strconv"
"strings"
@ -122,10 +123,12 @@ func Raw(args ...string) ([]byte, error) {
if err != nil {
return nil, ErrIptablesNotFound
}
if os.Getenv("DEBUG") != "" {
fmt.Printf("[DEBUG] [iptables]: %s, %v\n", path, args)
}
output, err := exec.Command(path, args...).CombinedOutput()
if err != nil {
return nil, fmt.Errorf("iptables failed: iptables %v: %s (%s)", strings.Join(args, " "), output, err)
}
return output, err
}