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fix: array bound crashes on clans.

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This commit is contained in:
Houmgaor
2025-10-21 00:21:50 +02:00
parent 060635e422
commit 73e874f43f
6 changed files with 413 additions and 10 deletions
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23
server/signserver/dsgn_resp.go
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@@ -338,10 +338,17 @@ func (s *Session) makeSignResponse(uid uint32) []byte {
bf.WriteBytes(stringsupport.PaddedString(psnUser, 20, true))
}
bf.WriteUint16(s.server.erupeConfig.DebugOptions.CapLink.Values[0])
if s.server.erupeConfig.DebugOptions.CapLink.Values[0] == 51728 {
bf.WriteUint16(s.server.erupeConfig.DebugOptions.CapLink.Values[1])
if s.server.erupeConfig.DebugOptions.CapLink.Values[1] == 20000 || s.server.erupeConfig.DebugOptions.CapLink.Values[1] == 20002 {
// CapLink.Values requires at least 5 elements to avoid index out of range panics
// Provide safe defaults if array is too small
capLinkValues := s.server.erupeConfig.DebugOptions.CapLink.Values
if len(capLinkValues) < 5 {
capLinkValues = []uint16{0, 0, 0, 0, 0}
}
bf.WriteUint16(capLinkValues[0])
if capLinkValues[0] == 51728 {
bf.WriteUint16(capLinkValues[1])
if capLinkValues[1] == 20000 || capLinkValues[1] == 20002 {
ps.Uint16(bf, s.server.erupeConfig.DebugOptions.CapLink.Key, false)
}
}
@@ -356,10 +363,10 @@ func (s *Session) makeSignResponse(uid uint32) []byte {
bf.WriteUint32(caStruct[i].Unk1)
ps.Uint8(bf, caStruct[i].Unk2, false)
}
bf.WriteUint16(s.server.erupeConfig.DebugOptions.CapLink.Values[2])
bf.WriteUint16(s.server.erupeConfig.DebugOptions.CapLink.Values[3])
bf.WriteUint16(s.server.erupeConfig.DebugOptions.CapLink.Values[4])
if s.server.erupeConfig.DebugOptions.CapLink.Values[2] == 51729 && s.server.erupeConfig.DebugOptions.CapLink.Values[3] == 1 && s.server.erupeConfig.DebugOptions.CapLink.Values[4] == 20000 {
bf.WriteUint16(capLinkValues[2])
bf.WriteUint16(capLinkValues[3])
bf.WriteUint16(capLinkValues[4])
if capLinkValues[2] == 51729 && capLinkValues[3] == 1 && capLinkValues[4] == 20000 {
ps.Uint16(bf, fmt.Sprintf(`%s:%d`, s.server.erupeConfig.DebugOptions.CapLink.Host, s.server.erupeConfig.DebugOptions.CapLink.Port), false)
}