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package util
import (
"strconv"
"github.com/pkg/errors"
)
// ParseMTU parses the mtu option
func ParseMTU(mtu string) (int, error) {
if mtu == "" {
return 0, nil // default
}
m, err := strconv.Atoi(mtu)
if err != nil {
return 0, err
}
if m < 0 {
return 0, errors.Errorf("mtu %d is less than zero", m)
}
return m, nil
}
// ParseVlan parses the vlan option
func ParseVlan(vlan string) (int, error) {
if vlan == "" {
return 0, nil // default
}
v, err := strconv.Atoi(vlan)
if err != nil {
return 0, err
}
if v < 0 || v > 4094 {
return 0, errors.Errorf("vlan ID %d must be between 0 and 4094", v)
}
return v, nil
}
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