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|
package util
import (
"fmt"
"strconv"
)
// 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, fmt.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, fmt.Errorf("vlan ID %d must be between 0 and 4094", v)
}
return v, nil
}
// ParseIsolate parses the isolate option
func ParseIsolate(isolate string) (string, error) {
switch isolate {
case "":
return "false", nil
case "strict":
return isolate, nil
default:
// isolate option accepts "strict" and Rust boolean values "true" or "false"
optIsolateBool, err := strconv.ParseBool(isolate)
if err != nil {
return "", fmt.Errorf("failed to parse isolate option: %w", err)
}
// Rust boolean only support "true" or "false" while go can parse 1 and 0 as well so we need to change it
return strconv.FormatBool(optIsolateBool), nil
}
}
|
