Tests: Unknown bind__() error 98

[nic11]

$ ./skymp5-server/cpp/unit
[ESPM] Skyrim.esm read in 0.103972s, parsed in 3.09136s, size is 238Mb
[ESPM] Update.esm read in 0.009465s, parsed in 0.048818s, size is 17Mb
[ESPM] Dawnguard.esm read in 0.010295s, parsed in 0.294307s, size is 24Mb
[ESPM] HearthFires.esm read in 0.001476s, parsed in 0.046697s, size is 3Mb
[ESPM] Dragonborn.esm read in 0.030766s, parsed in 0.573462s, size is 61Mb
DoMessage for 1 users took 59 microseconds
Unknown bind__() error 98.

...

System info:

$ cmake --version
cmake version 3.21.1

CMake suite maintained and supported by Kitware (kitware.com/cmake).

$ clang++-12 --version
Ubuntu clang version 12.0.0-3ubuntu1~20.04.3
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

$ node --version 
v14.17.4

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.2 LTS
Release:        20.04
Codename:       focal

[nic11]

Probably Linux-only issue, didn't see that line with Windows build.

According to strace:

socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 15
setsockopt(15, SOL_SOCKET, SO_RCVBUF, [262144], 4) = 0
setsockopt(15, SOL_SOCKET, SO_LINGER, 0x7ffe5ded1a60, 4) = -1 EINVAL (Invalid argument)
setsockopt(15, SOL_SOCKET, SO_SNDBUF, [16384], 4) = 0
setsockopt(15, SOL_SOCKET, SO_BROADCAST, [1], 4) = 0
setsockopt(15, SOL_IP, IP_HDRINCL, [0], 4) = -1 ENOPROTOOPT (Protocol not available)
bind(15, {sa_family=AF_INET, sin_port=htons(7778), sin_addr=inet_addr("0.0.0.0")}, 16) = -1 EADDRINUSE (Address already in use)
close(15)                               = 0
write(1, "Unknown bind__() error 98.\n", 27) = 27
close(15)                               = -1 EBADF (Bad file descriptor)

Also, double-close here. Should be fixed somehow.

[nic11]

Came from here: https://github.com/SLikeSoft/SLikeNet/blob/cca394f05e9e9e3e315a85539e648f267d3f2fcc/Source/src/RakNetSocket2_Berkley.cpp#L234

This also explains why this doesn't get printed on Windows, since this is Unix-specific branch. But probably Windows is also affected by this issue.

[nic11]

We've got SLikeNet version dated Sep 4, 2019 according to commit hash cca394f05e9e9e3e315a85539e648f267d3f2fcc from vcpkg port. The most recent commit is dated Jul 1, 2021, however. Maybe upgrade will fix it?

[Security-1337]

так апгрейдни и чекни ты че гений что ли, нахуй пишешь в иссуе если тут иссуе с головой

[Security-1337]

bind(15, {sa_family=AF_INET, sin_port=htons(7778), sin_addr=inet_addr("0.0.0.0")}, 16) = -1 EADDRINUSE (Address already in use) - не смущает да?

[nic11]

@solomun259 Please refrain from abusive speech and keep conversations appropriate. See https://github.com/skyrim-multiplayer/skymp/blob/main/CONTRIBUTING.md:

No offensive language in code - Let's code and comment in ways that do not hurt anyone.

This also applies to issue comments. Please also keep it in English language.

As for your comment, I did see error text. Keep in mind that checking new version of dependency requires building it again with changes to vcpkg port, and this takes some time. Also, I did not see any new commits featuring this file since that day which could change the situation (but I'll try upgrading despite that).

[Pospelove]

This is expected. See: https://github.com/skyrim-multiplayer/skymp/blob/45ccd6323ff1f59d5ec91e25fbb3c645c2c308f4/skymp5-server/cpp/unit/NetworkingTest.cpp#L61