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Cedar/Proto.c: check whether IsPacketForMe() is available before calling it

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The SSTP implementation doesn't provide packet identification, because it's not required: the protocol is identified by the HTTP header it sends to the server.
This commit is contained in:
Davide Beatrici 2020-07-12 03:26:30 +02:00
parent 96a2d5a124
commit d917b2ac73
1 changed files with 1 additions and 1 deletions
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2
src/Cedar/Proto.c
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@ -187,7 +187,7 @@ PROTO_IMPL *ProtoImplDetect(PROTO *proto, const PROTO_MODE mode, const UCHAR *da
for (i = 0; i < LIST_NUM(proto->Impls); ++i) for (i = 0; i < LIST_NUM(proto->Impls); ++i)
{ {
PROTO_IMPL *impl = LIST_DATA(proto->Impls, i); PROTO_IMPL *impl = LIST_DATA(proto->Impls, i);
if (impl->IsPacketForMe(mode, data, size) == false) if (impl->IsPacketForMe == NULL || impl->IsPacketForMe(mode, data, size) == false)
{ {
continue; continue;
} }