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fix(master): a server list's outdated flags are read all or none

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A list cut short inside the flags was read as if complete; an older master's list, which has none, still
reads. The test checks every cut.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-30 06:32:35 -05:00
parent ebe77ee45c
commit 951edfdde2
2 changed files with 13 additions and 2 deletions
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11
tests/dGameTests/dNetTests/MasterPacketsTests.cpp
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@@ -426,7 +426,16 @@ TEST(MasterPacketsTests, ServerListMatchesLegacy) {
EXPECT_EQ(copy.endpoints[i].port, 3000 + i);
EXPECT_EQ(copy.endpoints[i].host.string, i == 2 ? "192.168.1.20" : "localhost");
}
ExpectTruncatedFails(response);
// Cut short anywhere it fails, except exactly before the outdated flags (an older master's list), which reads
RakNet::BitStream full;
response.Serialize(full);
const auto olderMaster = full.GetNumberOfBitsUsed() - static_cast<uint32_t>(count) * 8;
for (uint32_t bits = 0; bits < full.GetNumberOfBitsUsed(); bits++) {
RakNet::BitStream prefix;
prefix.WriteBits(full.GetData(), bits, false);
MasterPackets::ServerListResponse cut;
EXPECT_EQ(cut.Deserialize(prefix), bits == olderMaster && count > 0) << "read from only " << bits << " bits";
}
}
}