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fix out of bound

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fumiama
2022-01-01 17:49:37 +08:00
parent 8a43e379a5
commit 2fbf20c9e4
2 changed files with 2 additions and 1 deletions
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1
.gitignore vendored
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@@ -16,3 +16,4 @@
.DS_Store .DS_Store
config.yaml config.yaml
WireGold

2
gold/link/me.go
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@@ -155,7 +155,7 @@ func (p PacketID) issame(packet []byte) bool {
func (m *Me) sendAllSameDst(packet []byte) (n int, rem []byte) { func (m *Me) sendAllSameDst(packet []byte) (n int, rem []byte) {
rem = packet rem = packet
if !waterutil.IsIPv4(packet) { if !waterutil.IsIPv4(packet) {
for waterutil.IsIPv6(rem) { for len(rem) > 20 && waterutil.IsIPv6(rem) {
pktl := int(binary.BigEndian.Uint16(packet[4:6])) + 40 pktl := int(binary.BigEndian.Uint16(packet[4:6])) + 40
if pktl > len(rem) { if pktl > len(rem) {
return return