diff options
Diffstat (limited to 'dhcpv6/options.go')
| -rw-r--r-- | dhcpv6/options.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/dhcpv6/options.go b/dhcpv6/options.go index 3ee5dad..d64d1d9 100644 --- a/dhcpv6/options.go +++ b/dhcpv6/options.go @@ -120,11 +120,15 @@ func ParseOption(dataStart []byte) (Option, error) { func OptionsFromBytes(data []byte) ([]Option, error) { // Parse a sequence of bytes until the end and build a list of options from // it. Returns an error if any invalid option or length is found. + options := make([]Option, 0, 10) + if len(data) == 0 { + // no options, no party + return options, nil + } if len(data) < 4 { // cannot be shorter than option code (2 bytes) + length (2 bytes) return nil, fmt.Errorf("Invalid options: shorter than 4 bytes") } - options := make([]Option, 0, 10) idx := 0 for { if idx == len(data) { |