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2021-03-30Merge #21387: p2p: Refactor sock to add I2P fuzz and unit testsWladimir J. van der Laan
40316a37cb02cf8a9a8b2cbd4d7153ffa57e7ec5 test: add I2P test for a runaway SAM proxy (Vasil Dimov) 2d8ac779708322e1235e823edfc9c8f6e2dd65e4 fuzz: add tests for the I2P Session public interface (Vasil Dimov) 9947e44de0cbd79e99d883443a9ac441d8c69713 i2p: use pointers to Sock to accommodate mocking (Vasil Dimov) 82d360b5a88d9057b6c09b61cd69e426c7a2412d net: change ConnectSocketDirectly() to take a Sock argument (Vasil Dimov) b5861100f85fef77b00f55dcdf01ffb4a2a112d8 net: add connect() and getsockopt() wrappers to Sock (Vasil Dimov) 5a887d49b2b39e59d7cce8e9d5b89c21ad694f8b fuzz: avoid FuzzedSock::Recv() repeated errors with EAGAIN (Vasil Dimov) 3088f83d016e7ebb6e6aa559e6326fa0ef0d6282 fuzz: extend FuzzedSock::Recv() to support MSG_PEEK (Vasil Dimov) 9b05c49ade729311a0f4388a109530ff8d0ed1f9 fuzz: implement unimplemented FuzzedSock methods (Vasil Dimov) Pull request description: Change the networking code and the I2P code to be fully mockable and use `FuzzedSocket` to fuzz the I2P methods `Listen()`, `Accept()` and `Connect()`. Add a mocked `Sock` implementation that returns a predefined data on reads and use it for a regression unit test for the bug fixed in https://github.com/bitcoin/bitcoin/pull/21407. ACKs for top commit: practicalswift: Tested ACK 40316a37cb02cf8a9a8b2cbd4d7153ffa57e7ec5 MarcoFalke: Concept ACK 40316a37cb jonatack: re-ACK 40316a37cb02cf8a9a8b2cbd4d7153ffa57e7ec5 reviewed `git range-diff 01bb3afb 23c861d 40316a3` and the new unit test commit, debug built, ran unit tests, ran bitcoind with an I2P service and network operation with seven I2P peers (2 in, 5 out) is looking nominal laanwj: Code review ACK 40316a37cb02cf8a9a8b2cbd4d7153ffa57e7ec5 Tree-SHA512: 7fc4f129849e16e0c7e16662d9f4d35dfcc369bb31450ee369a2b97bdca95285533bee7787983e881e5a3d248f912afb42b4a2299d5860ace7129b0b19623cc8
2021-03-16p2p, refactor: pass and use uint16_t CService::port as uint16_tJon Atack
2021-03-16net: change ConnectSocketDirectly() to take a Sock argumentVasil Dimov
Change `ConnectSocketDirectly()` to take a `Sock` argument instead of a bare `SOCKET`. With this, use the `Sock`'s (possibly mocked) methods `Connect()`, `Wait()` and `GetSockOpt()` instead of calling the OS functions directly.
2021-03-15net: move Doxygen docs from netbase.cpp to netbase.hJon Atack
2021-03-15net: update incorrect Doxygen documentation in netbase.cppJon Atack
2021-03-08net: Make DNS lookup code testablepracticalswift
2021-03-02fuzz: Add FUZZED_SOCKET_FAKE_LATENCY mode to FuzzedSock to allow for fuzzing ↵practicalswift
timeout logic
2021-03-02fuzz: Add fuzzing harness for Socks5(...)practicalswift
2021-03-01net: Do not skip the I2P network from GetNetworkNames()Vasil Dimov
So that help texts include "i2p" in: * `./bitcoind -help` (in `-onlynet` description) * `getpeerinfo` RPC * `getnetworkinfo` RPC Co-authored-by: Jon Atack <jon@atack.com>
2021-03-01net: recognize I2P from ParseNetwork() so that -onlynet=i2p worksVasil Dimov
2021-03-01net: dedup MSG_NOSIGNAL and MSG_DONTWAIT definitionsVasil Dimov
Deduplicate `MSG_NOSIGNAL` and `MSG_DONTWAIT` definitions from `net.cpp` and `netbase.cpp` to `compat.h` where they can also be reused by other code.
2021-03-01net: move the constant maxWait out of InterruptibleRecv()Vasil Dimov
Move `maxWait` out of `InterruptibleRecv()` and rename it to `MAX_WAIT_FOR_IO` so that it can be reused by other code.
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
2021-02-10style: 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.
2021-02-10net: use Sock in InterruptibleRecv() and Socks5()Vasil Dimov
Use the `Sock` class instead of `SOCKET` for `InterruptibleRecv()` and `Socks5()`. This way the `Socks5()` function can be tested by giving it a mocked instance of a socket. Co-authored-by: practicalswift <practicalswift@users.noreply.github.com>
2021-02-10net: add RAII socket and use it instead of bare SOCKETVasil Dimov
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.
2021-02-10net: move CloseSocket() from netbase to util/sockVasil Dimov
Move `CloseSocket()` (and `NetworkErrorString()` which it uses) from `netbase.{h,cpp}` to newly added `src/util/sock.{h,cpp}`. This is necessary in order to use `CloseSocket()` from a newly introduced Sock class (which will live in `src/util/sock.{h,cpp}`). `sock.{h,cpp}` cannot depend on netbase because netbase will depend on it.
2021-02-10net: move MillisToTimeval() from netbase to util/timeVasil Dimov
Move `MillisToTimeval()` from `netbase.{h,cpp}` to `src/util/system.{h,cpp}`. This is necessary in order to use `MillisToTimeval()` from a newly introduced `src/util/sock.{h,cpp}` which cannot depend on netbase because netbase will depend on it.
2021-02-02net: create GetNetworkNames()Jon Atack
2021-02-02net: update NET_UNROUTABLE to not_publicly_routable in GetNetworkName()Jon Atack
2020-10-15net: update GetNetworkName() with all enum Network casesJon Atack
2020-08-24net: change CNetAddr::ip to have flexible sizeVasil Dimov
Before this change `CNetAddr::ip` was a fixed-size array of 16 bytes, not being able to store larger addresses (e.g. TORv3) and encoded smaller ones as 16-byte IPv6 addresses. Change its type to `prevector`, so that it can hold larger addresses and do not disguise non-IPv6 addresses as IPv6. So the IPv4 address `1.2.3.4` is now encoded as `01020304` instead of `00000000000000000000FFFF01020304`. Rename `CNetAddr::ip` to `CNetAddr::m_addr` because it is not an "IP" or "IP address" (TOR addresses are not IP addresses). In order to preserve backward compatibility with serialization (where e.g. `1.2.3.4` is serialized as `00000000000000000000FFFF01020304`) introduce `CNetAddr` dedicated legacy serialize/unserialize methods. Adjust `CSubNet` accordingly. Still use `CSubNet::netmask[]` of fixed 16 bytes, but use the first 4 for IPv4 (not the last 4). Only allow subnetting for IPv4 and IPv6. Co-authored-by: Carl Dong <contact@carldong.me>
2020-06-22refactor: Use uint16_t instead of unsigned shortAaron Hook
removed trailing whitespace to make linter happy
2020-06-06refactor: Replace RecursiveMutex with Mutex in netbase.cppHennadii Stepanov
2020-01-22Merge #17754: net: Don't allow resolving of std::string with embedded NUL ↵Wladimir J. van der Laan
characters. Add tests. 7a046cdc1423963bdcbcf9bb98560af61fa90b37 tests: Avoid using C-style NUL-terminated strings as arguments (practicalswift) fefb9165f23fe9d10ad092ec31715f906e0d2ee7 tests: Add tests to make sure lookup methods fail on std::string parameters with embedded NUL characters (practicalswift) 9574de86ad703ad942cdd0eca79f48c0d42b102b net: Avoid using C-style NUL-terminated strings as arguments in the netbase interface (practicalswift) Pull request description: Don't allow resolving of `std::string`:s with embedded `NUL` characters. Avoid using C-style `NUL`-terminated strings as arguments in the `netbase` interface Add tests. The only place in where C-style `NUL`-terminated strings are actually needed is here: ```diff + if (!ValidAsCString(name)) { + return false; + } ... - int nErr = getaddrinfo(pszName, nullptr, &aiHint, &aiRes); + int nErr = getaddrinfo(name.c_str(), nullptr, &aiHint, &aiRes); if (nErr) return false; ``` Interface changes: ```diff -bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup); +bool LookupHost(const std::string& name, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup); -bool LookupHost(const char *pszName, CNetAddr& addr, bool fAllowLookup); +bool LookupHost(const std::string& name, CNetAddr& addr, bool fAllowLookup); -bool Lookup(const char *pszName, CService& addr, int portDefault, bool fAllowLookup); +bool Lookup(const std::string& name, CService& addr, int portDefault, bool fAllowLookup); -bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions); +bool Lookup(const std::string& name, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions); -bool LookupSubNet(const char *pszName, CSubNet& subnet); +bool LookupSubNet(const std::string& strSubnet, CSubNet& subnet); -CService LookupNumeric(const char *pszName, int portDefault = 0); +CService LookupNumeric(const std::string& name, int portDefault = 0); -bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, const SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed); +bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, const SOCKET& hSocketRet, int nTimeout, bool& outProxyConnectionFailed); ``` It should be noted that the `ConnectThroughProxy` change (from `bool *outProxyConnectionFailed` to `bool& outProxyConnectionFailed`) has nothing to do with `NUL` handling but I thought it was worth doing when touching this file :) ACKs for top commit: EthanHeilman: ACK 7a046cdc1423963bdcbcf9bb98560af61fa90b37 laanwj: ACK 7a046cdc1423963bdcbcf9bb98560af61fa90b37 Tree-SHA512: 66556e290db996917b54091acd591df221f72230f6b9f6b167b9195ee870ebef6e26f4cda2f6f54d00e1c362e1743bf56785d0de7cae854e6bf7d26f6caccaba
2020-01-16Fix doxygen errorsBen Woosley
Identified via -Wdocumentation, e.g.: ./rpc/rawtransaction_util.h:31:13: error: parameter 'prevTxs' not found in the function declaration [-Werror,-Wdocumentation] * @param prevTxs Array of previous txns outputs that tx depends on but may not yet be in the block chain ^~~~~~~ ./rpc/rawtransaction_util.h:31:13: note: did you mean 'prevTxsUnival'? * @param prevTxs Array of previous txns outputs that tx depends on but may not yet be in the block chain ^~~~~~~ prevTxsUnival netbase.cpp:766:11: error: parameter 'outProxyConnectionFailed[out]' not found in the function declaration [-Werror,-Wdocumentation] * @param outProxyConnectionFailed[out] Whether or not the connection to the ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ netbase.cpp:766:11: note: did you mean 'outProxyConnectionFailed'? * @param outProxyConnectionFailed[out] Whether or not the connection to the ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ outProxyConnectionFailed
2020-01-15scripted-diff: Bump copyright of files changed in 2020MarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2020-01-15scripted-diff: Replace CCriticalSection with RecursiveMutexMarcoFalke
-BEGIN VERIFY SCRIPT- # Delete outdated alias for RecursiveMutex sed -i -e '/CCriticalSection/d' ./src/sync.h # Replace use of outdated alias with RecursiveMutex sed -i -e 's/CCriticalSection/RecursiveMutex/g' $(git grep -l CCriticalSection) -END VERIFY SCRIPT-
2020-01-08net: Avoid using C-style NUL-terminated strings as arguments in the netbase ↵practicalswift
interface
2019-12-30scripted-diff: Bump copyright of files changed in 2019MarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2019-11-04doc: Fix some misspellingsrandymcmillan
2019-08-08util: refactor upper/lowercase functionsKarl-Johan Alm
This includes renaming Downcase() to ToLower() and make it return a string rather than modify referenced arg. Also adds ToUpper() string version.
2019-07-18net: Make poll in InterruptibleRecv only filter for POLLIN events.tecnovert
poll should block until there is data to be read or the timeout expires. Filtering for the POLLOUT event causes poll to return immediately which leads to high CPU usage when trying to connect to non-responding peers through tor. Removing POLLOUT matches how select is used when USE_POLL isn't defined.
2019-07-15docs: Improve netbase commentsCarl Dong
- Improve and add various Lookup* docs - Improve InterruptibleRecv docs - Improve Socks5 docs - Add CreateSocket docs - Add ConnectSocketDirectly docs - Add SetNameProxy docs - Add ConnectThroughProxy docs - Add LookupSubNet docs
2019-06-02Make reasoning about dependencies easier by not including unused dependenciespracticalswift
2019-01-24Drop defunct Windows compat fixesBen Woosley
"The AI_ADDRCONFIG flag is defined on the Windows SDK for Windows Vista and later. The AI_ADDRCONFIG flag is supported on Windows Vista and later." https://docs.microsoft.com/en-us/windows/desktop/api/ws2tcpip/nf-ws2tcpip-getaddrinfo However, the version of MinGW we use on Travis is not current and does not carry the relevant definition, as such I defined it in compat. https://github.com/wine-mirror/wine/blob/master/include/ws2tcpip.h Testing confirms that the PROTECTION_LEVEL_UNRESTRICTED, IPV6_PROTECTION_LEVEL, PROCESS_DEP_ENABLE, AI_ADDRCONFIG, are now supported by the version of Windows that we test against, so can be removed. https://travis-ci.org/bitcoin/bitcoin/jobs/483255439 https://travis-ci.org/Empact/bitcoin/jobs/484123087
2018-12-03Implement poll() on systems which support it properly.Patrick Strateman
This eliminates the restriction on maximum socket descriptor number.
2018-11-28Add missing locking annotationspracticalswift
2018-11-04scripted-diff: Move util files to separate directory.Jim Posen
-BEGIN VERIFY SCRIPT- mkdir -p src/util git mv src/util.h src/util/system.h git mv src/util.cpp src/util/system.cpp git mv src/utilmemory.h src/util/memory.h git mv src/utilmoneystr.h src/util/moneystr.h git mv src/utilmoneystr.cpp src/util/moneystr.cpp git mv src/utilstrencodings.h src/util/strencodings.h git mv src/utilstrencodings.cpp src/util/strencodings.cpp git mv src/utiltime.h src/util/time.h git mv src/utiltime.cpp src/util/time.cpp sed -i 's/<util\.h>/<util\/system\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmemory\.h>/<util\/memory\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmoneystr\.h>/<util\/moneystr\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilstrencodings\.h>/<util\/strencodings\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utiltime\.h>/<util\/time\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/BITCOIN_UTIL_H/BITCOIN_UTIL_SYSTEM_H/g' src/util/system.h sed -i 's/BITCOIN_UTILMEMORY_H/BITCOIN_UTIL_MEMORY_H/g' src/util/memory.h sed -i 's/BITCOIN_UTILMONEYSTR_H/BITCOIN_UTIL_MONEYSTR_H/g' src/util/moneystr.h sed -i 's/BITCOIN_UTILSTRENCODINGS_H/BITCOIN_UTIL_STRENCODINGS_H/g' src/util/strencodings.h sed -i 's/BITCOIN_UTILTIME_H/BITCOIN_UTIL_TIME_H/g' src/util/time.h sed -i 's/ util\.\(h\|cpp\)/ util\/system\.\1/g' src/Makefile.am sed -i 's/utilmemory\.\(h\|cpp\)/util\/memory\.\1/g' src/Makefile.am sed -i 's/utilmoneystr\.\(h\|cpp\)/util\/moneystr\.\1/g' src/Makefile.am sed -i 's/utilstrencodings\.\(h\|cpp\)/util\/strencodings\.\1/g' src/Makefile.am sed -i 's/utiltime\.\(h\|cpp\)/util\/time\.\1/g' src/Makefile.am sed -i 's/-> util ->/-> util\/system ->/' test/lint/lint-circular-dependencies.sh sed -i 's/src\/util\.cpp/src\/util\/system\.cpp/g' test/lint/lint-format-strings.py test/lint/lint-locale-dependence.sh sed -i 's/src\/utilmoneystr\.cpp/src\/util\/moneystr\.cpp/g' test/lint/lint-locale-dependence.sh sed -i 's/src\/utilstrencodings\.\(h\|cpp\)/src\/util\/strencodings\.\1/g' test/lint/lint-locale-dependence.sh sed -i 's/src\\utilstrencodings\.cpp/src\\util\\strencodings\.cpp/' build_msvc/libbitcoinconsensus/libbitcoinconsensus.vcxproj -END VERIFY SCRIPT-
2018-09-26doxygen: Fix member commentsMarcoFalke
2018-09-11Call unicode API on WindowsChun Kuan Lee
2018-08-28Removes the Boost case_conv.hpp dependency.251
This commit removes the `boost/algorithm/string/case_conv.hpp` dependency from the project. It replaces the `boost::to_lower` and `boost::to_upper` functions with custom functions that are locale independent and ASCII deterministic.
2018-07-27Update copyright headers to 2018DrahtBot
2018-07-22Removes Boost predicate.hpp dependency251
This is a squashed commit that squashes the following commits: This commit removes the `boost/algorithm/string/predicate.hpp` dependenc from the project by replacing the function calls to `boost::algorithm::starts_with` `boost::algorithm::ends_with` and `all` with respectively C++11' `std::basic_string::front`, `std::basic_string::back`, `std::all_of` function calls This commit replaces `boost::algorithm::is_digit` with a locale independent isdigi function, because the use of the standard library's `isdigit` and `std::isdigit functions is discoraged in the developer notes
2018-07-02scripted-diff: Replace NET_TOR with NET_ONIONwodry
-BEGIN VERIFY SCRIPT- sed --in-place'' --expression='s/NET_TOR/NET_ONION/g' $(git grep -I --files-with-matches 'NET_TOR') -END VERIFY SCRIPT- The --in-place'' hack is required for sed on macOS to edit files in-place without passing a backup extension.
2018-06-24Log warning message when deprecated network name 'tor' is used (e.g. option ↵wodry
onlynet=tor)
2018-05-03Make it clear which functions that are intended to be translation unit localpracticalswift
Do not share functions that are meant to be translation unit local with other translation units. Use internal linkage for those consistently.
2018-04-16net: Minor accumulated cleanupsThomas Snider
2018-04-13Merge #12569: net: Increase signal-to-noise ratio in debug.log by adjusting ↵Wladimir J. van der Laan
log level when logging failed non-manual connect():s cba2800 Increase signal-to-noise ratio in debug.log by adjusting log level when logging failed non-manual connect():s (practicalswift) Pull request description: Increase signal-to-noise ratio in `debug.log` by adjusting log level when logging failed non-manual `connect()`:s. Before this patch: ``` $ src/bitcoind -printtoconsole … 2018-02-28 18:42:51 UpdateTip: new best=0000000000005448b10a219683d34b770a28044e1cc421032dea1a79ff548948 height=1286903 version=0x20000000 log2_work=69.791313 tx=17408546 date='2018-02-28 18:42:46' progress=1.000000 cache=0.0MiB(173txo) 2018-02-28 18:37:52 connect() 10.11.21.34:18333 failed after select(): Connection refused (111) 2018-02-28 18:43:22 connect() to 10.11.43.14:18333 failed after select(): Network is unreachable (101) 2018-02-28 18:44:49 UpdateTip: new best=000000000000029a521ff2803e1441b09413b876accff5084a4cccf7747d798b height=1286904 version=0x20000000 log2_work=69.791345 tx=17408559 date='2018-02-28 18:44:51' progress=1.000000 cache=0.1MiB(502txo) 2018-02-28 18:46:54 connect() to [2001:0:9d38:78ff:1234:1234:1234:1234]:18333 failed: Network is unreachable (101) 2018-02-28 18:48:56 connect() to [2001:0:9d38:6aff:1234:1234:1234:1234]:18333 failed: Network is unreachable (101) 2018-02-28 18:49:11 UpdateTip: new best=000000000000000206b79eb235e5dd907b6369de0e5d764330bf40ec0d460311 height=1286905 version=0x20000000 log2_work=69.791377 tx=17408577 date='2018-02-28 18:49:12' progress=1.000000 cache=1.0MiB(5245txo) ``` After this patch: ``` $ src/bitcoind -printtoconsole … 2018-02-28 18:42:51 UpdateTip: new best=0000000000005448b10a219683d34b770a28044e1cc421032dea1a79ff548948 height=1286903 version=0x20000000 log2_work=69.791313 tx=17408546 date='2018-02-28 18:42:46' progress=1.000000 cache=0.0MiB(173txo) 2018-02-28 18:44:49 UpdateTip: new best=000000000000029a521ff2803e1441b09413b876accff5084a4cccf7747d798b height=1286904 version=0x20000000 log2_work=69.791345 tx=17408559 date='2018-02-28 18:44:51' progress=1.000000 cache=0.1MiB(502txo) 2018-02-28 18:49:11 UpdateTip: new best=000000000000000206b79eb235e5dd907b6369de0e5d764330bf40ec0d460311 height=1286905 version=0x20000000 log2_work=69.791377 tx=17408577 date='2018-02-28 18:49:12' progress=1.000000 cache=1.0MiB(5245txo) ``` Please note that "manual `connect()`:s" (invoked via `-connect`, `-proxy` or `addnode`) are still reported at the default log level as these messages are likely to be relevant to end-users: ``` $ src/bitcoind -printtoconsole -connect=127.0.0.1:1234 … 2018-02-28 18:31:13 connect() to 127.0.0.1:1234 failed after select(): Connection refused (111) $ src/bitcoind -printtoconsole -proxy=127.0.0.1:1234 … 2018-02-28 18:32:32 connect() to 127.0.0.1:1234 failed after select(): Connection refused (111) $ src/bitcoind -printtoconsole & $ src/bitcoin-cli addnode 127.0.0.1:1234 onetry … 2018-02-28 18:33:40 connect() to 127.0.0.1:1234 failed after select(): Connection refused (111) ``` Tree-SHA512: 92e3c1e4b54ce8ccdd7ec31de147c8505710cd799ceb2bbc8576a086709967802403c9184df364b3cfa59bd98859f6ac8feb27fb09b9324194c6c47a042fc6d3
2018-03-15Remove redundant checks for MSG_* from configure.acVasil Dimov
It is redundant to check for the presence of MSG_NOSIGNAL macro in configure.ac, define HAVE_MSG_NOSIGNAL and then check whether the later is defined in the source code. Instead we can check directly whether MSG_NOSIGNAL is defined. Same for MSG_DONTWAIT. In addition to that, the checks we had in configure.ac produce a compiler warning about unused variable and thus could fail if -Werror is present and erroneously proclaim that the macros are not available.