Function ValidateFilterIP

cli/cmd/bpftrace.go:73–85

ValidateFilterIP validates an IP address string and returns the parsed IP. Returns nil IP and no error if input is empty (no filter). Returns error if input is non-empty but invalid.

(input string)

// Returns nil IP and no error if input is empty (no filter).
// Returns error if input is non-empty but invalid.
func ValidateFilterIP(input string) (net.IP, error) {
	if input == "" {
		return nil, nil
	}
	ip := net.ParseIP(input)
	if ip == nil {
		return nil, fmt.Errorf("%w: %q", errInvalidIP, input)
	}
	if ip.To4() == nil {
		return nil, fmt.Errorf("%w: %q", errIPv6NotSupported, input)
	}
	return ip, nil
}

// ValidateFilterCIDR validates a CIDR string and returns the parsed IPNet.
// Returns nil and no error if input is empty (no filter).