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2021-02-15[net] Add RunInactivityChecks()John Newbery
Moves the logic to prevent running inactivity checks until the peer has been connected for -peertimeout time into its own function. This will be reused by net_processing later.
2021-02-15[net processing] Add Peer& arg to MaybeDiscourageAndDisconnect()John Newbery
Refactor only. No change in behaviour.
2021-02-15Merge #20965: net, rpc: return NET_UNROUTABLE as not_publicly_routable, ↵MarcoFalke
automate helps 96635e61777add29b6a34d47767a63f43b2919af init: use GetNetworkNames() in -onlynet help (Jon Atack) 0dbde700a6e9894a8ead20f2eebd0ff6554ef2d9 rpc: use GetNetworkNames() in getnetworkinfo and getpeerinfo helps (Jon Atack) 1c3af37881adbbc37fb9924bcf69c403fcae1ae7 net: create GetNetworkNames() (Jon Atack) b45eae4d5332f1da71ba9ec983fe7818fa4d32e9 net: update NET_UNROUTABLE to not_publicly_routable in GetNetworkName() (Jon Atack) Pull request description: per the IRC discussion today at http://www.erisian.com.au/bitcoin-core-dev/log-2021-01-19.html#l-87 - return a more helpful string name for `Network::NET_UNROUTABLE`: "not_publicly_routable" instead of "unroutable" - update the RPC getpeerinfo "network" help, and automate it and the getnetworkinfo "network#name" and the -onlynet help doc generation ACKs for top commit: theStack: re-ACK 96635e61777add29b6a34d47767a63f43b2919af 🌳 MarcoFalke: review ACK 96635e61777add29b6a34d47767a63f43b2919af 🐗 Tree-SHA512: 511a7d987126b48a7a090739aa7c4964b6186a3ff8f5f7eec9233dd816c6b7a6dc91b3ea6b824aa68f218a8a3ebdc6ffd214e9a88af38f2bf23f3257c4284c3a
2021-02-15Merge #21167: net: make CNode::m_inbound_onion public, initialize explicitlyMarcoFalke
2ee4a7a9ec68c75094685c06ec793b614f44c4ce net: remove CNode::m_inbound_onion defaults for explicitness (Jon Atack) 24bda56c29800502953c6a8cd69248e60ff9a0a0 net: make CNode::m_inbound_onion public, drop getter, update tests (Jon Atack) Pull request description: Refactoring only, no change in behavior. This is a quick follow-up to #20210 to address these review comments: - https://github.com/bitcoin/bitcoin/pull/20210#discussion_r528835313 - https://github.com/bitcoin/bitcoin/pull/20210#discussion_r550860416 - https://github.com/bitcoin/bitcoin/pull/20210#issuecomment-766093925 Changes: - make the `CNode::m_inbound_onion class` member public, update the Doxygen comment, drop the getter, and update the tests - remove the `CNode::m_inbound_onion` default value initialization in the ctor declaration and the member initializer in favor of always passing it explicitly to the ctor where we initialize it dynamically, to both clarify the caller code and to allow the compiler to warn if it is uninitialized in the ctor or omitted in the caller ACKs for top commit: MarcoFalke: review ACK 2ee4a7a9ec68c75094685c06ec793b614f44c4ce 🏀 vasild: ACK 2ee4a7a9ec68c75094685c06ec793b614f44c4ce Tree-SHA512: 72961c91168885a9d881756b10bad9d587f5ce297d5a6493c23e267b7178ff22b697bc6868e7761d6304e372d2781453d30011a020afd506b1e308b4ffa5feee
2021-02-15Merge #21096: Re-add dead code detectionMarcoFalke
3f8776a1391c3978ed66144df15fd9bcb9edd35d Re-add dead code detection (flack) Pull request description: This re-adds unreachable code detection for Python based on `vulture`. Effectively, this reverts f4beb4996d27f2cdaf4f0a63e7dc044bf17decce. The difference to the previous version is that this runs with the `--min-confidence 100` setting. From https://pypi.org/project/vulture/: > Use `--min-confidence 100` to only report code that is guaranteed to be unused within the analyzed files. So this should avoid the previous issues where static analysis had wrong positives due to the dynamic nature of Python code by only reporting things that are unambiguous (such as code after a `return` statement). As such, there is not suppressions list. My motivation was mainly #21081 which would have been caught by this (as can be seen by the CI run failing). This is still marked as draft because #21081 is needed to get the linter to pass. Also, there is a second problem that this found (see https://github.com/bitcoin/bitcoin/pull/19509/files#r571454691). From what I can tell, this is a spurious type comment that could just be removed (or if that line has no side effects it could also be deleted altogether?). I could add a commit here to fix it, but I wanted to see if there is interest in having this linter again in the first place ACKs for top commit: practicalswift: ACK 3f8776a1391c3978ed66144df15fd9bcb9edd35d Tree-SHA512: 52314ad4f627d969de1eb15375ca677ed86a2e816fe773756a1ce22421214ba407b5a09a4bf701a3aab1a10c7b336f548e4cef3327edf154acba55e987db21f6
2021-02-15Merge #21100: test: remove unused function xor_bytesMarcoFalke
f64adc1eedff9d342b49d7e6428b2da21130c23c test: remove unused function xor_bytes (Sebastian Falbesoner) Pull request description: The function `xor_bytes` was introduced in commit 3c226639eb134314a0640d34e4ccb6148dbde22f (#19953, BIP340-342 validation), even [code-reviewed](https://github.com/bitcoin/bitcoin/pull/19953/files#r509383731), but actually never used. The [default signing algorithm in BIP340](https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki#Default_Signing) needs a xor operation, but this step is currently done by a single xor operation on large integer operands: ``` t = (sec ^ int.from_bytes(TaggedHash("BIP0340/aux", aux), 'big')).to_bytes(32, 'big') ``` Alternatively, we could keep the function and as well use it: ```diff --- a/test/functional/test_framework/key.py +++ b/test/functional/test_framework/key.py @@ -492,7 +492,7 @@ def sign_schnorr(key, msg, aux=None, flip_p=False, flip_r=False): P = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, sec)])) if SECP256K1.has_even_y(P) == flip_p: sec = SECP256K1_ORDER - sec - t = (sec ^ int.from_bytes(TaggedHash("BIP0340/aux", aux), 'big')).to_bytes(32, 'big') + t = xor_bytes(sec.to_bytes(32, 'big'), TaggedHash("BIP0340/aux", aux)) kp = int.from_bytes(TaggedHash("BIP0340/nonce", t + P[0].to_bytes(32, 'big') + msg), 'big') % SECP256K1_ORDER assert kp != 0 R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, kp)])) ``` ACKs for top commit: practicalswift: cr ACK f64adc1eedff9d342b49d7e6428b2da21130c23c: untested unused code should be removed Tree-SHA512: e9afae303488f19c6f6f44874d3537ed1c8164a197490e2b4e34853db886b858825b719648fa1a30b95177dcee9cf241f94ee9b835f0a2cae07024ce38a8c090
2021-02-15Merge #20942: [refactor] Move some net_processing globals into PeerManagerImplMarcoFalke
6452190841f8da1cdaf899d064974136ab37659f net_processing: simplify MaybeSetPeerAsAnnouncingHeaderAndIDs args (Anthony Towns) 39c2a69bc28eb3e3b5fa15a3965773b459bbf7ad net_processing: move MaybeSetPeerAsAnnouncingHeadersAndIDs into PeerManagerImpl (Anthony Towns) 7b7117efd00acf7609e65d3b4fe5f76e400dda12 net_processing: simplify ProcessGetData and FindTxForGetData args (Anthony Towns) 34207b9004d2069a8fcb32758cd796143eccfb4d net_processing: move FindTxForGetData and ProcessGetData to PeerManagerImpl (Anthony Towns) d44084883adcf00f50d3d5a9e0c88e3a0b276817 net_processing: simplify PeerManageImpl method args (Anthony Towns) a490f0a056456d683dd8ef6f89a5af1a13792118 net_processing: move MarkBlockAs*, TipMayBeStale, FindNextBlocksToDL to PeerManagerImpl (Anthony Towns) 052d9bc7e52aea373a316f08d42460ead4ed16c8 net_processing: simplify AlreadyHaveTx args (Anthony Towns) eeac5062508c98fe58daaec471cdd27f3909b6ec net_processing: move AlreadyHaveTx into PeerManageImpl (Anthony Towns) 9781c08a33569370f191b30cc7e2ce9b5317eb3e net_processing: move some globals into PeerManagerImpl (Anthony Towns) Pull request description: Turns some globals into member variables, and simplifies the parameter list for some of net_processing's internal functions. Mostly just serves as a code cleanup at this point. ACKs for top commit: jnewbery: Code review ACK 6452190841f8da1cdaf899d064974136ab37659f ariard: Code Review ACK 6452190, changes are pretty straightforward. MarcoFalke: Concept ACK 6452190841 I have not reviewed this, but I left a comment 🐡 Tree-SHA512: 381361f9dbfeb851a5522ead3165ce1447a0f212ddea4b483aa38975559ee5ed03a4ba69c24fd69f36847a1eddfef05785f5cbb2fcec5fe50f8b336e8047c3b1
2021-02-15Merge #20629: depends: Improve id string robustnessWladimir J. van der Laan
5200929bfe26c549d7da92c0adf8adf61e143416 depends: Include GUIX_ENVIRONMENT in id string (Carl Dong) 4c7d41858821e4fecf7cb0cec3fcad002365e6c9 depends: Improve id string robustness (Carl Dong) b3bdff42b5a7b4b956da700b187a7254daac54ae build: Proper quoting for var printing targets (Carl Dong) Pull request description: ``` Environment variables and search paths can drastically effect the operation of build tools. Include these in our id string to mitigate against false cache hits. ``` Note to builders: This will invalidate all depends output caches in `BASE_CACHE` ACKs for top commit: laanwj: re-ACK 5200929bfe26c549d7da92c0adf8adf61e143416 Tree-SHA512: e70c98da89cde90dc54bc3be89b925787cf94bbf246e27cc9345816b312073d78a02215448f731f21d8cf033c455234a2377ff1d66c00e1f3db69c9c9687d027
2021-02-14Merge #20986: docs: update developer notes to discourage very long linesMarcoFalke
aa929abf8dc022e900755234c857541faeea8239 [docs] Update developer notes to discourage very long lines (John Newbery) Pull request description: Mandatory rules on line lengths are bad - there will always be cases where a longer line is more readable than the alternative. However, very long lines for no good reason _do_ hurt readability. For example, this declaration in validation.h is 274 chars: ```c++ bool ConnectTip(BlockValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const std::shared_ptr<const CBlock>& pblock, ConnectTrace& connectTrace, DisconnectedBlockTransactions& disconnectpool) EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_mempool.cs); ``` That won't fit on one line without wrapping on my 27" monitor with a comfortable font size. Much easier to read is something like: ```c++ bool ConnectTip(BlockValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const std::shared_ptr<const CBlock>& pblock, ConnectTrace& connectTrace, DisconnectedBlockTransactions& disconnectpool) EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_mempool.cs); ``` Therefore, _discourage_ (don't forbid) line lengths greater than 100 characters in our developer style guide. 100 chars is somewhat arbitrary. The old standard was 80, but that seems very limiting with modern displays. ACKs for top commit: fanquake: ACK aa929abf8dc022e900755234c857541faeea8239 - this is basically just something to point too when a PR has unreasonably long lines for no particularly reason. practicalswift: ACK aa929abf8dc022e900755234c857541faeea8239 amitiuttarwar: ACK aa929abf8dc022e900755234c857541faeea8239 theStack: ACK aa929abf8dc022e900755234c857541faeea8239 glozow: ACK https://github.com/bitcoin/bitcoin/commit/aa929abf8dc022e900755234c857541faeea8239 Tree-SHA512: 17f1b11f811137497ede8851ede93fa612dc622922b5ad7ac8f065ea026d9a718db5b92325754b74d24012b4d45c4e2cd5cd439a6a8d34bbabf5da927d783970
2021-02-13Merge #21163: doc: Guix is shipped in Debian and UbuntuWladimir J. van der Laan
fa051c23860bcdcc871db5ad6b51b8d9ca88da35 doc: Guix is shipped in Debian and Ubuntu (MarcoFalke) Pull request description: ACKs for top commit: practicalswift: ACK fa051c23860bcdcc871db5ad6b51b8d9ca88da35 🚀 Tree-SHA512: f72f546cfc20cf1cc0c26c2306ac06416ada87661596fe811b497cce646aa286dc4aee832145bf838b13fbd3c5f064519eb8c0b4525eb562f2f04f20e2876ffc
2021-02-13Merge #21127: wallet: load flags before everything elseWladimir J. van der Laan
9305862f71189d47c873d366bf976622447e18af wallet: load flags before everything else (Sjors Provoost) Pull request description: Load and set wallet flags before processing other records. That way we can take them into account while processing those other records. Suggested here: https://github.com/bitcoin/bitcoin/pull/16546#discussion_r572334983 ACKs for top commit: laanwj: Code review ACK 9305862f71189d47c873d366bf976622447e18af gruve-p: ACK https://github.com/bitcoin/bitcoin/pull/21127/commits/9305862f71189d47c873d366bf976622447e18af achow101: ACK 9305862f71189d47c873d366bf976622447e18af Tree-SHA512: 7104523e369ce3c670571fe5e8b52c67b9ca92b8e36a2da5eb6f9f8bf8ed0544897007257204b68f6f371d682b3ef0d0635d36e6e8416ac74af1999d9fbc869c
2021-02-13Merge #21028: doc/bips: Add BIPs 43, 44, 49, and 84Wladimir J. van der Laan
c943326d3c06e481c142b112c7e7a0c6ff5a76b3 doc/bips: Add BIPs 43, 44, 49, and 84 (Luke Dashjr) Pull request description: If you don't like what they say, please suggest alternatives ;) ACKs for top commit: prusnak: ACK c943326 Tree-SHA512: 7db93f8491289657ec45df30e557eb8572b35201eb29aed1b11bf3949924fce56b4e2d71e1f0acf5d24a01278c0dec99790d632f04c15117010c4ac564368d6b
2021-02-13Re-add dead code detectionflack
2021-02-12net: remove CNode::m_inbound_onion defaults for explicitnessJon Atack
and to allow the compiler to warn if uninitialized in the ctor or omitted in the caller.
2021-02-12net: make CNode::m_inbound_onion public, drop getter, update testsJon Atack
2021-02-12doc/bips: Add BIPs 43, 44, 49, and 84Luke Dashjr
2021-02-12Merge #21165: test: Use mocktime in test_seed_peersMarcoFalke
d4187e46194e7b31f5ace48b08ff64416b967ec4 [test] Use mocktime in test_seed_peers() (Dhruv Mehta) 015637dd445e0158dc763d0d8c55f471d0bc4305 [refactor] Correct log message in net.cpp (Dhruv Mehta) Pull request description: The test now takes less than 5 seconds instead of more than 2 minutes Further context: https://github.com/bitcoin/bitcoin/pull/19884/files#r575336503 Before: ``` 2021-02-12T17:22:25.980000Z TestFramework (INFO): Test seed peers, this will take about 2 minutes 2021-02-12T17:24:30.472000Z TestFramework (INFO): Test -networkactive option ``` After: ``` 2021-02-12T17:33:39.224000Z TestFramework (INFO): Test seed peers 2021-02-12T17:33:43.139000Z TestFramework (INFO): Test -networkactive option ``` Top commit has no ACKs. Tree-SHA512: 6d8df7d4433c96268694577e4c10a346785e076d45fa220091875e55def200100e7b827fac2a1f7853a2c2c39e9661e06288dca8c645da9e13d4318a4ff2172e
2021-02-12[test] Use mocktime in test_seed_peers()Dhruv Mehta
Test case now takes < 5 seconds instead of > 2 minutes
2021-02-12[refactor] Correct log message in net.cppDhruv Mehta
2021-02-12doc: Guix is shipped in Debian and UbuntuMarcoFalke
2021-02-12Merge #19884: p2p: No delay in adding fixed seeds if -dnsseed=0 and ↵Wladimir J. van der Laan
peers.dat is empty fe3e993968d6b46777d5a16a662cd22790ddf5bb [p2p] No delay in adding fixed seeds if -dnsseed=0 and peers.dat is empty. Add -fixedseeds arg. (Dhruv Mehta) Pull request description: Closes #19795 Before PR: If `peers.dat` is empty and `-dnsseed=0`, bitcoind will fallback on to fixed seeds but only after a 60 seconds delay. After PR: There's no 60 second delay. To reproduce: `rm ~/.bitcoin/peers.dat && src/bitcoind -dnsseed=0` without and with patch code Other changes in the PR: - `-fixedseeds` command line argument added: `-dnsseed=0 -fixedseeds=0 -addnode=X` provides a trusted peer only setup. `-dnsseed=0 -fixedseeds=0` allows for a `addnode` RPC to add a trusted peer without falling back to hardcoded seeds. ACKs for top commit: LarryRuane: re-ACK fe3e993968d6b46777d5a16a662cd22790ddf5bb laanwj: re-ACK fe3e993968d6b46777d5a16a662cd22790ddf5bb Tree-SHA512: 79449bf4e83a315be6dbac9bdd226de89d2a3f7f76d9c5640a2cb3572866e6b0e8ed67e65674c9824054cf13119dc01c7e1a33848daac6b6c34dbc158b6dba8f
2021-02-12Merge #21064: refactor: use std::shared_mutex & remove Boost ThreadWladimir J. van der Laan
060a2a64d40d75fecb60b7d2b9946a67e46aa6fc ci: remove boost thread installation (fanquake) 06e1d7d81d5a56d136c6fc88f09a2b0654a164f9 build: don't build or use Boost Thread (fanquake) 7097add83c8596f81be9edd66971ffd2486357eb refactor: replace Boost shared_mutex with std shared_mutex in sigcache (fanquake) 8e55981ef834490c438436719f95cbaf888c4914 refactor: replace Boost shared_mutex with std shared_mutex in cuckoocache tests (fanquake) Pull request description: This replaces `boost::shared_mutex` and `boost::unique_lock` with [`std::shared_mutex`](https://en.cppreference.com/w/cpp/thread/shared_mutex) & [`std::unique_lock`](https://en.cppreference.com/w/cpp/thread/unique_lock). Even though [some concerns were raised](https://github.com/bitcoin/bitcoin/issues/16684#issuecomment-726214696) in #16684 with regard to `std::shared_mutex` being unsafe to use across some glibc versions, I still think this change is an improvement. As I mentioned in #21022, I also think trying to restrict standard library feature usage based on bugs in glibc is not only hard to do, but it's not currently clear exactly how we do that in practice (does it also extend to patching out use in our dependencies, should we be implementing more runtime checks for features we are using, when do we consider an affected glibc "old enough" not to worry about? etc). If you take a look through the [glibc bug tracker](https://sourceware.org/bugzilla/describecomponents.cgi?product=glibc) you'll no doubt find plenty of (active) bug reports for standard library code we already using. Obviously not to say we shouldn't try and avoid buggy code where possible. Two other points: [Cory mentioned in #21022](https://github.com/bitcoin/bitcoin/pull/21022#issuecomment-769274179): > It also seems reasonable to me to worry that boost hits the same underlying glibc bug, and we've just not happened to trigger the right conditions yet. Moving away from Boost to the standard library also removes the potential for differences related to Boosts configuration. Boost has multiple versions of `shared_mutex`, and what you end up using, and what it's backed by depends on: * The version of Boost. * The platform you're building for. * Which version of `BOOST_THREAD_VERSION` is defined: (2,3,4 or 5) default=2. (see [here](https://www.boost.org/doc/libs/1_70_0/doc/html/thread/build.html#thread.build.configuration) for some of the differences). * Is `BOOST_THREAD_V2_SHARED_MUTEX` defined? (not by default). If so, you might get the ["less performant, but more robust"](https://github.com/boostorg/thread/issues/230#issuecomment-475937761) version of `shared_mutex`. A lot of these factors are eliminated by our use of depends, but users will have varying configurations. It's also not inconceivable to think that a distro, or some package manager might start defining something like `BOOST_THREAD_VERSION=3`. Boost tried to change the default from 2 to 3 at one point. With this change, we no longer use Boost Thread, so this PR also removes it from depends, the build system, CI etc. Previous similar PRs were #19183 & #20922. The authors are included in the commits here. Also related to #21022 - pthread sanity checking. ACKs for top commit: laanwj: Code review ACK 060a2a64d40d75fecb60b7d2b9946a67e46aa6fc vasild: ACK 060a2a64d40d75fecb60b7d2b9946a67e46aa6fc Tree-SHA512: 572d14d8c9de20bc434511f20d3f431836393ff915b2fe9de5a47a02dca76805ad5c3fc4cceecb4cd43f3ba939a0508178c4e60e62abdbaaa6b3e8db20b75b03
2021-02-12Merge #19522: build: fix building libconsensus with reduced exports for ↵Wladimir J. van der Laan
Darwin targets de4238f92f4c067f099663f68d9772105de81d75 build: consolidate reduced export checks (fanquake) 012bdec1b7df01906566a6526e56f27d57d1653b build: add building libconsensus to end-of-configure output (fanquake) 8f360e349e365870b40a6873917c81de714ae41a build: remove ax_gcc_func_attribute macro (fanquake) f054a089ecfbdc4732e6f705a10e93189074f41c build: remove AX_GCC_FUNC_ATTRIBUTE test for dllimport (fanquake) 7cd0a696643a824ab6f6911278f116f01c5af662 build: test for __declspec(dllexport) in configure (fanquake) 1624e17b5430dfe808bb3b1b79dfa53bf45aa053 build: remove duplicate visibility attribute detection (fanquake) Pull request description: Darwin targets do not have a `protected` visibility function attribute, see [LLVM explanation](https://github.com/llvm/llvm-project/blob/8e9a505139fbef7d2e6e9d0adfe1efc87326f9ef/clang/lib/Basic/Targets/OSTargets.h#L131). This means that the `AX_GCC_FUNC_ATTRIBUTE` check for `visibility` fails: ```bash configure:24513: checking for __attribute__((visibility)) configure:24537: g++ -std=c++11 -o conftest -g -O2 -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS -DMAC_OSX -DOBJC_OLD_DISPATCH_PROTOTYPES=0 -Wl,-headerpad_max_install_names conftest.cpp >&5 conftest.cpp:35:56: warning: target does not support 'protected' visibility; using 'default' [-Wunsupported-visibility] int foo_pro( void ) __attribute__((visibility("protected"))); ^ 1 warning generated. configure:24537: $? = 0 configure:24550: result: no ``` This leads to `EXPORT_SYMBOL` being [defined to nothing](https://github.com/bitcoin/bitcoin/blob/f4de89edfa8be4501534fec0c662c650a4ce7ef2/src/script/bitcoinconsensus.h#L29), as `HAVE_FUNC_ATTRIBUTE_VISIBILITY` is not defined, and when building with reduced exports, you end up with a libbitcoinconsensus.dylib that doesn't export any `_bitcoinconsensus_*` symbols. ```bash ➜ git:(master) nm -C src/.libs/libbitcoinconsensus.dylib | rg _bitcoinconsensus_ ➜ git:(master) ``` We do have a [second check](https://github.com/bitcoin/bitcoin/blob/f4de89edfa8be4501534fec0c662c650a4ce7ef2/configure.ac#L882) for the `visibility` attribute, which works for Darwin as it's only testing for default visibility, however the result of this check isn't used at all. It was added in #4725, along with the `--enable-reduce-exports` option, however when libbitcoinconsensus was added in #5235, it used the results of the added `AX_GCC_FUNC_ATTRIBUTE` calls. This PR removes our usage of the AX_GCC_FUNC_ATTRIBUTE macro entirely, in favour of our own checks in configure. This meant adding a check for `dllexport`, which I've tested as working with both [GCC](https://gcc.gnu.org/onlinedocs/gcc/Microsoft-Windows-Function-Attributes.html) and [Clang](https://releases.llvm.org/10.0.0/tools/clang/docs/AttributeReference.html#dllexport) when building for Windows. I haven't added an equivalent check for `dllimport`, as we weren't actually using the result of that check, we're just testing that `MSC_VER` was defined before using. With these changes building a libbitcoinconsensus with reduced exports, when targeting Darwin, works as expected: ```bash ./autogen.sh ./configure --disable-tests --disable-bench --with-utils=no --with-daemon=no --with-gui=no --disable-wallet --with-libs=yes --enable-reduce-exports make -j8 ... nm -C src/.libs/libbitcoinconsensus.dylib | rg _bitcoinconsensus_ 000000000000a340 T _bitcoinconsensus_verify_script 00000000000097e0 T _bitcoinconsensus_verify_script_with_amount 000000000000a3c0 T _bitcoinconsensus_version ``` ```python >>> import ctypes >>> consensus = ctypes.CDLL("src/.libs/libbitcoinconsensus.dylib") >>> print(consensus.bitcoinconsensus_version()) 1 >>> exit() ``` TODO: Modify a CI job to compile with --enable-reduce-exports and check for symbols in shared lib? ACKs for top commit: laanwj: Code review ACK de4238f92f4c067f099663f68d9772105de81d75 Tree-SHA512: d148f3c55d14dac6e9e5b718cc65bb557bcf6f663218d24bc9044b86281bd5dd3d931ebea79c336a58e8ed50d683218c0a9e75494f2267b91097665043e252ae
2021-02-12Merge #19145: Add hash_type MUHASH for gettxoutsetinfoWladimir J. van der Laan
e987ae5a554c9952812746c29f2766bacea4b727 test: Add test for deterministic UTXO set hash results (Fabian Jahr) 6ccc8fc067bf516cda7bc5d7d721945be5ac2003 test: Add test for gettxoutsetinfo RPC with MuHash (Fabian Jahr) 0d3b2f643d7da3202c0a0e757539208c4aa7c450 rpc: Add hash_type MUHASH to gettxoutsetinfo (Fabian Jahr) 2474645f3b15687e7f196b89eb935d6e6a98a9da refactor: Separate hash and stats calculation in coinstats (Fabian Jahr) a1fcceac69097a8e6540a6fd8121a5d53022528f refactor: Improve encapsulation between MuHash3072 and Num3072 (Fabian Jahr) Pull request description: This is another Pr in the series PRs for Coinstatsindex (see overview in #18000). This PR adds the `hash_type` option `muhash` to `gettxoutsetinfo` through which the user can calculate the serialized muhash of the utxo set. This PR does not use the index yet. ACKs for top commit: Sjors: tACK e987ae5 achow101: ACK e987ae5a554c9952812746c29f2766bacea4b727 jonatack: Tested re-ACK e987ae5a554c9952812746c29f2766bacea4b727 per `git diff 3506d90 e987ae5`, reviewed diff, debug built, ran gettxoutsetinfo -signet and help on this branch vs master, at height 23127 both returned `hash_serialized_2` of `2b72d65f3b6efb2311f58374ea2b939abf49684d44f4bafda45faa3b5452a454` and this branch returned `muhash` of `c9f1ff12d345ccf9939c6bbf087e6f7399b6115adee1569287e9c5c43dbb475c` ryanofsky: Code review ACK e987ae5a554c9952812746c29f2766bacea4b727. Looks very good. I left one suggestion to simplify code, but feel free to ignore it here and maybe consider it for later since PR has already had a lot of review. Tree-SHA512: 9a739ce375e73749fa69a467262b60d3e5314ef384e2d7150b3bbc8e4125cd9fd1db95306623bb9a632fcbaf5d9d2bf2f5cc43bf717d4ff5e2c9c4b52dd9296c
2021-02-12build: consolidate reduced export checksfanquake
2021-02-12build: add building libconsensus to end-of-configure outputfanquake
2021-02-12build: remove ax_gcc_func_attribute macrofanquake
This is no-longer used.
2021-02-12build: remove AX_GCC_FUNC_ATTRIBUTE test for dllimportfanquake
The result of this test isn't currently used anywhere (we use dllimport based on MSC_VER in libconsensus).
2021-02-12build: test for __declspec(dllexport) in configurefanquake
This should work for GCC and Clang when building for Windows targets.
2021-02-12build: remove duplicate visibility attribute detectionfanquake
We are already testing for this, and our test works correctly with a Darwin target, where the macro does not. Darwin targets do not support "protected" visibility.
2021-02-11[p2p] No delay in adding fixed seeds if -dnsseed=0 and peers.dat is empty. ↵Dhruv Mehta
Add -fixedseeds arg.
2021-02-11Merge #21041: log: Move "Pre-allocating up to position 0x[…] in […].dat" ↵Wladimir J. van der Laan
log message to debug category 25f899cc23a791c08e19acae91bebda6c3538d37 log: Move "Pre-allocating up to position 0x[...] in [...].dat" log message to debug category (practicalswift) acd7980b37b5a71f324f7772d72175c8bd7ab900 log: Move "Leaving block file [...]: [...]" log message to debug category (practicalswift) Pull request description: Move `Pre-allocating up to position 0x[…] in […].dat` log message to debug category. After the cleanup of `-debug=net` log messages PR (#20724) was merged recently the console log now has very high signal to noise ratio. That's great! :) This PR increases the signal to noise ratio slightly more by moving the most common remaining implementation detail log message (`Pre-allocating up to position 0x[…] in […].dat`) to the debug category where it belongs :) Expected standard output from `bitcoind` (when in steady state) before this patch: ``` $ src/bitcoind … 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z Pre-allocating up to position 0x0000000 in blk00000.dat 0000-00-00T00:00:00Z Pre-allocating up to position 0x000000 in rev00000.dat 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) ``` Expected standard output from `bitcoind` (when in steady state) after this patch: ``` $ src/bitcoind … 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) 0000-00-00T00:00:00Z UpdateTip: new best=0000000000000000000000000000000000000000000000000000000000000000 height=000000 version=0x00000000 log0_work=00.000000 tx=000000000 date='0000-00-00T00:00:00Z' progress=0.000000 cache=000.0MiB(0000000txo) ``` I find the latter alternative much easier to visually scan for anomalies (and more aesthetically pleasing TBH!). Non-GUI users deserve nice interfaces too :) ACKs for top commit: laanwj: ACK 25f899cc23a791c08e19acae91bebda6c3538d37 Tree-SHA512: 5970798c41b041527ebdcbd843c5e136c257c28c3b21fc74102da8970406ca5c0c7e406305c5e6e67de5c1708dc1858af07a77a2e05f44159b7103423e8ab32f
2021-02-11Merge #20370: fuzz: version handshakeMarcoFalke
fabce459bb44e90dc7ae9c44eeedab707435af5b fuzz: version handshake (MarcoFalke) Pull request description: Not fuzzing the version handshake will limit fuzz coverage ACKs for top commit: practicalswift: cr ACK fabce459bb44e90dc7ae9c44eeedab707435af5b: patch looks very much correct Tree-SHA512: 4091d27d39edee781d033e471b352084bb54df250d0890e4821a325926a44dff9b26a2614d67dd0529f73bd366b075d7a0a1a570c2837de286a1b93a59a8fb91
2021-02-11Merge #21062: refactor: return MempoolAcceptResult from ATMPMarcoFalke
53e716ea119658c28935fee24eb50090907c500e [refactor] improve style for touched code (gzhao408) 174cb5330af4b09f3a66974d3bae783ea43b190e [refactor] const ATMPArgs and non-const Workspace (gzhao408) f82baf0762f60c2ca5ffc339b095f9271d7c2f33 [refactor] return MempoolAcceptResult (gzhao408) 9db10a55061e09021ff8ea1d6637d99f7959035f [refactor] clean up logic in testmempoolaccept (gzhao408) Pull request description: This is the first 4 commits of #20833, and does refactoring only. It should be relatively simple to review, and offers a few nice things: - It makes accessing values that don't make sense (e.g. fee) when the tx is invalid an error. - Returning `MempoolAcceptResult` from ATMP makes the interface cleaner. The caller can get a const instead of passing in a mutable "out" param. - We don't have to be iterating through a bunch of lists for package validation, we can just return a `std::vector<MempoolAcceptResult>`. - We don't have to refactor all ATMP call sites again if/when we want to return more stuff from it. ACKs for top commit: MarcoFalke: ACK 53e716ea119658c28935fee24eb50090907c500e 💿 jnewbery: Code review ACK 53e716ea119658c28935fee24eb50090907c500e ariard: Code Review ACK 53e716e, I did tweak a bit the touched paths to see if we had good test coverage. Didn't find holes. Tree-SHA512: fa6ec324a08ad9e6e55948615cda324cba176255708bf0a0a0f37cedb7a75311aa334ac6f223be7d8df3c7379502b1081102b9589f9a9afa1713ad3d9ab3c24f
2021-02-11Merge #20788: net: add RAII socket and use it instead of bare SOCKETWladimir J. van der Laan
615ba0eb96cf131364c1ceca9d3dedf006fa1e1c test: add Sock unit tests (Vasil Dimov) 7bd21ce1efc363b3e8ea1d51dd1410ccd66820cb style: rename hSocket to sock (Vasil Dimov) 04ae8469049e1f14585aabfb618ae522150240a7 net: use Sock in InterruptibleRecv() and Socks5() (Vasil Dimov) ba9d73268f9585d4b9254adcf54708f88222798b net: add RAII socket and use it instead of bare SOCKET (Vasil Dimov) dec9b5e850c6aad989e814aea5b630b36f55d580 net: move CloseSocket() from netbase to util/sock (Vasil Dimov) aa17a44551c03b00a47854438afe9f2f89b6ea74 net: move MillisToTimeval() from netbase to util/time (Vasil Dimov) Pull request description: Introduce a class to manage the lifetime of a socket - when the object that contains the socket goes out of scope, the underlying socket will be closed. In addition, the new `Sock` class has a `Send()`, `Recv()` and `Wait()` methods that can be overridden by unit tests to mock the socket operations. The `Wait()` method also hides the `#ifdef USE_POLL poll() #else select() #endif` technique from higher level code. ACKs for top commit: laanwj: Re-ACK 615ba0eb96cf131364c1ceca9d3dedf006fa1e1c jonatack: re-ACK 615ba0eb96cf131364c1ceca9d3dedf006fa1e1c Tree-SHA512: 3003e6bc0259295ca0265ccdeb1522ee25b4abe66d32e6ceaa51b55e0a999df7ddee765f86ce558a788c1953ee2009bfa149b09d494593f7d799c0d7d930bee8
2021-02-11fuzz: version handshakeMarcoFalke
2021-02-11Merge #21043: net: Avoid UBSan warning in ProcessMessage(...)MarcoFalke
3ddbf22ed179a2db733af4b521bec5d2b13ebf4b util: Disallow negative mocktime (MarcoFalke) f5f2f9716885e7548809e77f46b493c896a019bf net: Avoid UBSan warning in ProcessMessage(...) (practicalswift) Pull request description: Avoid UBSan warning in `ProcessMessage(...)`. Context: https://github.com/bitcoin/bitcoin/pull/20380#issuecomment-770427182 (thanks Crypt-iQ!) ACKs for top commit: MarcoFalke: re-ACK 3ddbf22ed179a2db733af4b521bec5d2b13ebf4b only change is adding patch written by me ajtowns: ACK 3ddbf22ed179a2db733af4b521bec5d2b13ebf4b -- code review only Tree-SHA512: e8d7af0457ca86872b75a4e406c0a93aafd841c2962e244e147e748cc7ca118c56be0fdafe53765f4b291410030b2c3cc8f76f733b37a955d34fc885ab6037b9
2021-02-11Merge #20211: Use -Wswitch for TxoutType where possibleMarcoFalke
fa650ca7f19307a9237e64ac311488c8947fc12a Use -Wswitch for TxoutType where possible (MarcoFalke) fa59e0b5bd2aed8380cc9b9e52791f662aecd6a6 test: Add missing script_standard_Solver_success cases (MarcoFalke) Pull request description: This removes unused `default:` cases for all `switch` statements on `TxoutType` and adds the cases (`MULTISIG`, `NULL_DATA`, `NONSTANDARD`) to `ExtractDestination` for clarity. Also, the compiler is now able to use `-Wswitch`. ACKs for top commit: practicalswift: cr ACK fa650ca7f19307a9237e64ac311488c8947fc12a: patch looks correct and `assert(false);` is better than UB :) hebasto: ACK fa650ca7f19307a9237e64ac311488c8947fc12a, I have reviewed the code and it looks OK, I agree it can be merged. Tree-SHA512: 282458b6523bd8923a0c0f5c423d1db2dce2a2d1b1d1dae455415c6fc995bb41ce82c1f9b0a1c0dcc6d874d171e04c30eca585f147582f52c7048c140358630a
2021-02-11Merge #20915: fuzz: Fail if message type is not fuzzedMarcoFalke
fa4bc897fc9332a5666ca2f3e78492cd67ee6128 fuzz: Fail if message type is not fuzzed (MarcoFalke) faefed8cd5d26a485f5f6df824d7c90967c826f3 fuzz: Count message type fuzzers before main() (MarcoFalke) Pull request description: `process_message_*` is a nice way to quickly fuzz a single message type. However, the offered message types are outdated and all BIPs implemented in the last years are missing. Fix that by adding them and failing when the number of message types don't add up. ACKs for top commit: practicalswift: cr ACK fa4bc897fc9332a5666ca2f3e78492cd67ee6128: patch looks correct and touches only `src/test/fuzz/` Tree-SHA512: 8c98374b50fb4ab2ff2550daeab4c6e9f486bfe847466d217d4bc97d119adc99a82b87b56f47535b1cf8f844232bc7fa1230712a9147cda514ae78851556f988
2021-02-11test: add Sock unit testsVasil Dimov
2021-02-11Merge #21023: fuzz: Disable shuffle when merge=1MarcoFalke
fabeb5b9c7f678ab3bc24c1860f8514ac52bb56f fuzz: Disable shuffle when merge=1 (MarcoFalke) Pull request description: This should hopefully help make the deletion of fuzz inputs more deterministic. My tests (N=1) revealed that without this patch 7000 files differ (https://github.com/bitcoin-core/qa-assets/pull/44#issuecomment-768841467). With this patch, "only" 2000 files differ. ACKs for top commit: practicalswift: cr ACK fabeb5b9c7f678ab3bc24c1860f8514ac52bb56f: `-shuffle=0` and `-prefer_small=1` make sense Tree-SHA512: 21a701f52450d402a91dd6e0b33d564c63a9c3b919738eb9a80c24d48fc5b964088e325470738f39af0d595612c844acc7bf0941590cc2dc8c6f6ee4cb69c861
2021-02-11fuzz: Fail if message type is not fuzzedMarcoFalke
2021-02-11fuzz: Count message type fuzzers before main()MarcoFalke
2021-02-11Merge #20663: fuzz: Hide script_assets_test_minimizerMarcoFalke
fac726b1b8331b267973138bbd2bff5304774315 doc: Fixup docs in fuzz/script_assets_test_minimizer.cpp (MarcoFalke) fafca47adc2476f19f7926de4d55b64b0286e41c fuzz: Hide script_assets_test_minimizer (MarcoFalke) Pull request description: This is not an actual fuzz target. It is a hack to exploit the built-in capability of fuzz engines to measure coverage. ACKs for top commit: practicalswift: cr ACK fac726b1b8331b267973138bbd2bff5304774315: patch looks correct and touches only `src/test/fuzz/` Tree-SHA512: 0652dd8d9e95746b0906be4044467435d8204a34a30366ae9bdb75b9cb0788d429db7cedf2760fd543565d9d4f7ee206873ed10a29dd715a792a26337f65b53c
2021-02-10log: Move "Pre-allocating up to position 0x[...] in [...].dat" log message ↵practicalswift
to debug category
2021-02-10log: Move "Leaving block file [...]: [...]" log message to debug categorypracticalswift
2021-02-10Merge #21130: script: Make LXC container size suitable for gitian buildsWladimir J. van der Laan
166266a372fed2b1f73053084a923fab7edc77f4 script: Make LXC container size suitable for gitian builds (Hennadii Stepanov) Pull request description: This change prevents "No space left on device" error. See: - https://github.com/bitcoin/bitcoin/pull/21036#issuecomment-774771873 - https://github.com/bitcoin/bitcoin/pull/21036#issuecomment-775031315 ACKs for top commit: jonasschnelli: ACK 166266a372fed2b1f73053084a923fab7edc77f4 - I had to add this manually to my nighly build base image Tree-SHA512: 47d84c3a65f0a17013b2cb970c34bfa4e600e83066be302ff10280aefefa0a7c6cb6c21a191b3e8e6fcd1c292d1c434cc4769e04626c4536050aced29b34d573
2021-02-10Merge #21114: Deduplicate some block-to-JSON codeWladimir J. van der Laan
fa2c52111544b0de93ac1002f5395bceeb8fea0e Deduplicate some block-to-JSON code. (Daniel Kraft) Pull request description: Some of the logic converting blocks and block headers to JSON for the blockchain RPC methods (`getblock`, `getlockheader`) was duplicated. Instead of that, the `blockToJSON` RPC method now calls `blockheaderToJSON` first, and then fills in the missing, block-specific bits explicitly. ACKs for top commit: laanwj: Code review ACK fa2c52111544b0de93ac1002f5395bceeb8fea0e Tree-SHA512: 1b9b269e251d9c8c1056f253cfc2a795170d609f4c26ecc85b1ff9cdd567095a673dd89564e0d587b32dfc152ea01b2682169b018f2c9c3004c511a9998d772e
2021-02-10Merge #21123: code style: Add EditorConfig fileWladimir J. van der Laan
7a135d57b2ac17477b25d5046a3bec57eac3ab30 Add EditorConfig file. (Kiminuo) Pull request description: ### Motivation Developers are supposed to follow [Coding style](https://github.com/bitcoin/bitcoin/blob/master/doc/developer-notes.md#coding-style-general). However, [from time to time](https://github.com/bitcoin/bitcoin/pull/21075#discussion_r570125634) a PR is created and then its author is asked to change tabs to spaces, for example. Introducing an `.editorconfig` file can mitigate these formatting issues. ### User story A contributor wants to create a new PR. She clones Bitcoin Core repo, opens her editor, the editor loads `.editorconfig` rules and writes her patch with correct formatting rules. Less Coding Style issues is then discovered in the PR review process and thus less CI runs are needed. ### What is EditorConfig file? https://editorconfig.org provides very well and concise explanation: > What is EditorConfig? > EditorConfig helps maintain consistent coding styles for multiple developers working on the same project across various editors and IDEs. The EditorConfig project consists of a file format for defining coding styles and a collection of text editor plugins that enable editors to read the file format and adhere to defined styles. EditorConfig files are easily readable and they work nicely with version control systems. ### Support `.editorconfig` is supported by many IDEs and text editors. Sometimes, the support is out of the box and sometimes a plugin is needed. However, for example, VS Code detects `.editorconfig` presence and automatically offers you to install the missing plugin. See https://editorconfig.org/#pre-installed for details on support. To name a few: * Visual Studio (out of the box) * VS Code (plugin) * JetBrains IDEs (IntelliJ IDEA, PyCharm, etc.) (out of the box) * Sublime Text (plugin) * Emacs (plugin) * Vim (plugin) Not supported (AFAIK): * [mcedit](https://github.com/MidnightCommander/mc) ### My editor does not support `.editorconfig` Then nothing really changes for you. ### `.editorconfig` vs `.clang-format` As explained [here](https://devblogs.microsoft.com/cppblog/clangformat-support-in-visual-studio-2017-15-7-preview-1/): > Note that Visual Studio also supports EditorConfig, which works in a similar way. ClangFormat, however, has a [much larger variety of style options](https://clang.llvm.org/docs/ClangFormatStyleOptions.html) than EditorConfig, including some very C++ specific rules that can be set, and it is already used by C++ developers today. Having both `.editorconfig` and `.clang-format` in a project, may not always work correctly though, I think. As some editors may have a plugin for `.editorconfig` and a plugin for `clang-formatter` which may not work correctly in unison. In VS Code & Visual Studio EditorConfig [takes precedence over other settings](https://github.com/MicrosoftDocs/visualstudio-docs/blob/master/docs/ide/cpp-editorconfig-properties.md#c-editorconfig-formatting-conventions). ### Possible issues Your editor may change formatting for some 3rd party library if you edit the code. A solution for this would be to make EditorConfig rules more specific (include only certain paths). I'm not sure if it is an issue in practice. ### Testing Add some trailing whitespace to a Python file and save the file. You should see that the trailing whitespace is removed. ### Possible future work It would be great to define rules for Makefiles. This would be good start: ``` # Makefiles [Makefile,*.am] indent_style = tab trim_trailing_whitespace = true ``` I don't know makefiles in this project good enough to propose something reasonable. If this PR is well received, it would be great to add it in this PR. Also, there are actually many different file extensions and so the proposed `.editorconfig` file can be probably improved very much: ```powershell Get-ChildItem -Recurse | % {$_.Extension.ToLower()} | sort | unique ``` <details><summary>Click to see the output</summary> ``` .1 .ac .adoc .am .bash-completion .bat .bmp .c .cc .cert .cfg .clang_complete .clang-format .cmake .cmd .cnf .com .conf .cpp .css .csv .doxyfile .dtd .empty .exe .exp .gci .gitattributes .github .gitignore .gitmodules .guess .h .hex .hpp .html .icns .ico .idb .ilk .in .include .ini .init .ipp .jam .js .json .lastbuildstate .lib .list .log .m .m4 .md .mk .mm .moc .obj .openrc .openrcconf .patch .pc .pdb .pl .plist .png .po .pro .py .python-version .qbk .qm .qml .qrc .raw .rb .rc .recipe .res .s .sage .sass .scm .scss .service .sgml .sh .sln .spec .sub .supp .svg .targets .td .tlog .ts .tx .txt .ui .user .v2 .vcxproj .verbatim .vscode .xml .xpm .xsl .y .yapf .yml .yy ``` </details> Fixes #21092 ACKs for top commit: laanwj: Tested re-ACK 7a135d57b2ac17477b25d5046a3bec57eac3ab30 MarcoFalke: Approach ACK 7a135d57b2ac17477b25d5046a3bec57eac3ab30 Tree-SHA512: c36a3424ecc751fbdd66101463b0c470f5c7adcdb4795b1cd267ff718eb345a04615fc1182338adf5b7db724469dca00c64815a9ef77064734a6536fba41a2ba
2021-02-10style: rename hSocket to sockVasil Dimov
In the arguments of `InterruptibleRecv()`, `Socks5()` and `ConnectThroughProxy()` the variable `hSocket` was previously of type `SOCKET`, but has been changed to `Sock`. Thus rename it to `sock` to imply its type, to distinguish from other `SOCKET` variables and to abide to the coding style wrt variables' names.
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