00:00 < bridge> <-StormAx> @blaiszephyr thanks for hoping on me 00:00 < bridge> <-StormAx> i finally made this 00:00 < bridge> <-StormAx> after 2 days of brain killing 00:00 < bridge> <-StormAx> https://cdn.discordapp.com/attachments/293493549758939136/1194777889430835421/Base_Profile_2024.01.10_-_20.49.05.02.DVR.mp4?ex=65b1969e&is=659f219e&hm=b850783d9e1c78fcace5dd0728e26f4c222ae6abf254634209cb2d9a35d0f6f8& 00:01 < bridge> *Pat Pat Pat* it'll be okay 00:01 < bridge> @stormaxd what are you doing? 00:02 < bridge> <-StormAx> old freeze 00:02 < bridge> <-StormAx> when ninja has a katana 00:02 < bridge> stars? 00:02 < bridge> ah 00:02 < bridge> no the katana 00:02 < bridge> i see 00:03 < bridge> I miss the stars. They were so perfect to time things + whenever I see old teeworlds videos or the trailer on steam it just feels like nostalgia and a whole different game :( 00:04 < bridge> @learath2 when ur promised clientside alternative to get them back 00:04 < bridge> i dont lol 00:05 < bridge> <-StormAx> its awful, add old starts is possible only by changing client version to 16010 00:05 < bridge> nah, you can simply render them clientside 00:06 < bridge> the client knows about all the info needed in order to replay the old server behaviour for the stars 00:06 < bridge> <-StormAx> hmmm 00:06 < bridge> <-StormAx> if you know that, where is stars is sending? 00:07 < bridge> wdym? 00:07 < bridge> <-StormAx> some netmsg, so server understand what to set freezebar || stars 00:07 < bridge> https://github.com/ddnet/ddnet/blob/42319546a6d3d98e300405cb11011fcee1332cce/src/game/server/entities/character.cpp#L2024 00:07 < bridge> <-StormAx> thanks 00:08 < bridge> np 00:08 < bridge> I'm just too lazy and busy to do it myself but I really want this as an option back 00:08 < bridge> clientsided 00:09 < bridge> good night 00:10 < bridge> As you can see in the link, the client with new HUD Version will not receive the stars. Simply render them clientside. 00:10 < bridge> The Info you need is sent via DDNetCharacter snap object. 00:11 < bridge> This info is also used by the client to render the freeze bar. 00:11 < bridge> <-StormAx> Ah 00:11 < bridge> <-StormAx> So i can just sat it as local variable 00:11 < bridge> <-StormAx> Cool 00:12 < bridge> <-StormAx> So i can just set it as local variable 00:12 < bridge> You mean as config option clientside? 00:12 < bridge> yes 00:12 < bridge> or what? 00:22 < bridge> <-StormAx> exacly what i ment 01:13 < bridge> <-StormAx> huh, i cant see any info i neer 01:14 < bridge> <-StormAx> or i just blind 02:27 < bridge> `GameServer()->ClientsMaskExcludeClientVersionAndHigher(VERSION_DDNET_NEW_HUD)` excludes clients that have the new hud (16010 or higher) 02:49 < bridge> important message from jupstar's weeb alter-ego 02:49 < bridge> https://images-ext-2.discordapp.net/external/nDvnb5lWaeiwa2KRFBniVsO-rscQ9-icUNC75LYyDlk/https/mosaic.fxtwitter.com/jpeg/1745151803346550836/GDgGUOSbMAA--T5/GDgGUOSbMAE3e_2/GDgGUORbMAE3c3F?format=webp&width=1440&height=748 05:38 < bridge> i though you're going to use sql or something 05:40 < bridge> I'm want to use sql for managing my server accounts, can someone give me a direction 05:40 < bridge> I want to use sql for managing my server accounts, can someone give me a direction 05:41 < bridge> managing accounts with c++ is pain and hard to scale 06:29 < bridge> SQL is very simple in nature and the glue to use it in cpp is really trivial 06:30 < bridge> also already implemented 06:30 < bridge> https://www.w3schools.com/sql/ 06:41 < bridge> i fast read it yesterday, how can i combine my existing c++ code with sql ? 06:44 < bridge> DDNetCharacter has m_FreezeEnd field. 06:44 < bridge> https://github.com/ddnet/ddnet/blob/42319546a6d3d98e300405cb11011fcee1332cce/src/game/server/entities/character.cpp#L1250 06:45 < bridge> based on that you should be able to recreate the exact logic the server uses 06:46 < bridge> @stormaxd oh, and you also have m_FreezeStart which might be helpful, idk right now 06:50 < bridge> <__bauxite__> Hey everyone, I'm hoping I might be able to get some help here, I couldn't find answers on the internet, however I came across a blog post by @deen and it led me here. The issue is about small to medium size DDOS attacks on my game server (Valve Source 1 engine game), I'm looking for help to mitigate such attacks. My server is often hit by 50k PPS attacks probably from some "script kiddie", I suppose an entry-level server should in theory be a 07:07 < bridge> I hate this world 07:08 < bridge> 😆 07:09 < bridge> I would first of all check why the server is having issues. 07:09 < bridge> 07:09 < bridge> First thing to check is if the attacks have enough throughput to saturate your connection. If they do then you are in our situation and there isn't much to do, if you can find a cooperative hoster they might let you have filters upstream, that is the only thing that helps that isn't cost prohibitive. You also use Source 1, so I'm guessing Source networking, the protocol is much more supported than our custom solution, you might have better luck wi 07:11 < bridge> <__bauxite__> Nah they're small attacks, not sure how to check why my server is having issues, I'm fairly new to Linux, but I guess them spamming 50k pps at my game port probably doesn't help 07:13 < bridge> It's either CPU overload or network overload 07:15 < bridge> <__bauxite__> Hmm I see, I'll have to look into it, I wonder if I can tell them to ddos me when im testing instead of playing 😂 07:18 < bridge> <__bauxite__> Do you have any suggestions to be able to analyse the situation when the attack occurs (again I'm fairly new to linux so if you could point me in the right direction) 07:19 < bridge> Check `htop` for CPU usage 07:20 < bridge> <__bauxite__> I suppose if it's cpu related I can always pay for a bigger cpu, if network maybe I can do the same? 07:20 < bridge> Also another critical thing is whether the kernel is struggling to deliver the 50k pps or whether there is a defect in the game that's struggling to drop the garbage fast enough 07:21 < bridge> <__bauxite__> I'd like to say there's many defects in the game because it's on a 2006 engine version which never got any of the security and other updates 07:21 < bridge> <__bauxite__> But idk for sure 07:22 < bridge> Problem is network cost scales exponentially for us. Attack cost scales weakly linearly. So you start needing insane amounts of networking just to handle the occasional attack 07:23 < bridge> <__bauxite__> Yeah i can see why it would be more difficult in your situation, fortunately I only run 1 small server for a game literally nobody plays so I'm not even sure why we're getting ddosed in the first place xd 07:24 < bridge> If the game engine is having trouble dropping the packets but not the kernel you can try dropping them in iptables and that should help. 07:24 < bridge> 07:24 < bridge> If the kernel is having trouble delivering the packets you'll need to mess around with kernel options, maybe try an xdp filter or upgrade to a better cpu 07:24 < bridge> It seems to boil down to kids and psycopaths 07:40 < bridge> <__bauxite__> I guess the first step is constructing a set of iptables rules that seems good, then go from there, unfortunately I have limited knowledge of iptables and documentation doesnt seem great, but i'll keep at it, see what happens. I gotta find some way to gather data during the attack that might be helpful, but idk where to start with that yet. 07:41 < bridge> <__bauxite__> I guess the first step is constructing a set of iptables rules that seems good, then go from there, unfortunately I have limited knowledge of iptables and documentation doesnt seem great, but i'll keep at it, see what happens. I gotta find some way to gather data during the attack that might be helpful, but idk where to start with that yet, other than checking the network and cpu usage. 08:00 < bridge> Or there is an opportunity for reflection attacks. And @__bauxite__ is just collateral damage. Or it’s a wider attack and the Hoster is actually the target or something like that. I also find it hard to believe small servers can be targets of ddos. Everything I get some I am saying to my self „I can not be the main target that makes no sense“ :D 08:00 < bridge> Or there is an opportunity for reflection attacks. And @__bauxite__ is just collateral damage. Or it’s a wider attack and the Hoster is actually the target or something like that. I also find it hard to believe small servers can be targets of ddos. Everytime I get some I am saying to my self „I can not be the main target that makes no sense“ :D 08:02 < bridge> morning to the early birds 08:04 < bridge> I personally like using `nload` to look at the amount of traffic but you seem to have those numbers already. Then I can recommend capturing one attack with `tcpdump -w attack.pcap` let that running for a short time during the attack then ctrl+c it. This is something you can then analyse after the fact. Then as fokko pointed out check your cpu usage. If your game server it self has cpu spikes and there is lags in game but your ssh is still smo 08:05 < bridge> It’s also interesting how you are being attacked. Is your game tcp or udp based? Are the IPs spoofed? Is it just a few IPs? Is it a lot of different IPs? Where are the IPs coming from? 08:09 < bridge> Also which port or service is attacked? Is it targeting your game server? Is it doing so with packets that implement the protocol correctly? Can they tell you something about your weak spots? Is it targeting a different port? Could target a website you have running and the game server lagging is just a side effect. 08:22 < bridge> I'd always block everything using host's provided fw and only allow used ports first 08:22 < bridge> Then yes you can check what the attack is exactly by analyzing it 08:24 < bridge> iptables is kinda old and has been replaced by nftables, but if you still use iptables and want to gain a bit of performance you can put your rules in the table mangle, chain PREROUTI'G 08:24 < bridge> PREROUTING\* 08:27 < bridge> Isn't iptables just a frontend for nftables in the kernel nowadays? 08:28 < bridge> iptables is the frontend for netfilter 08:29 < bridge> nftables is netfilter too afaik, but somehow more optimized 08:29 < bridge> from the wiki: `nftables uses mostly the same Netfilter infrastructure as legacy iptables` 08:30 < bridge> https://developers.redhat.com/blog/2017/04/11/benchmarking-nftables 08:30 < bridge> kinda old but still p 08:30 < bridge> kinda old but still up 08:32 < bridge> Hm, I'm fairly sure nftables replaced the iptables part of the netfilter 08:33 < bridge> afaik the kernel part didn't change much (netfilter), only some changes regarding nftables. But nowadays when you use iptables command you're kinda using nftables 08:34 < bridge> if you want to use the good old iptables you have to dpkg-reconfigure & switch to iptables-legacy 08:34 < bridge> (debian) 08:37 < bridge> morning 08:38 < bridge> @learath2 i unmasked amd64 on llvm and all related to get llvm 17 08:38 < bridge> also lld 17 08:38 < bridge> but i dont have lld on path 08:38 < bridge> its weird 08:38 < bridge> oh 08:38 < bridge> i have it today 08:38 < bridge> maybe i needed a restart 08:39 < bridge> ❯ which lld 08:39 < bridge> /usr/lib/llvm/17/bin/lld 08:39 < bridge> ye im sure it setups symlinks or path in some profile thing 08:39 < bridge> @learath2 ah yea well looks like nftables uses a newer kernel infrastructure in which the idea was taken from BPF-like systems 08:39 < bridge> Bash caches executable locations 08:40 < bridge> inspired* 08:40 < bridge> You need to run `hash -someargumentIdontrememberRTFM` 08:40 < bridge> what i mean is, it required a login instead of closing and opening term 08:40 < bridge> xd 08:41 < bridge> Yep, one thing I don't remember though is if the old iptables stuff still exists in the kernel 08:42 < bridge> they do if you switch to the legacy part 08:42 < bridge> if not ig old modules are disabled by default 08:42 < bridge> @jupeyy_keks did u see tcp getting a 40% increase on perfomance on kernel 6.9 opn epyc processors but not intel? 08:42 < bridge> because epyc has separated l3 caches and intel has unified 08:43 < bridge> Kernel 69?? 08:43 < bridge> I have to upgrade 08:44 < bridge> https://www.phoronix.com/news/Linux-6.8-Networking 08:44 < bridge> 6.8* 08:44 < bridge> i mean 08:44 < bridge> sry 08:44 < bridge> Linux 6.8 Network Optimizations Can Boost TCP Performance For Many Concurrent Connections By ~40% 08:45 < bridge> A hell of an improvement especially for the AMD EPYC servers. Kudos to those at Google continuing to push these very enticing low-level kernel optimizations. 08:45 < bridge> https://cdn.discordapp.com/attachments/293493549758939136/1194909880377675836/image.png?ex=65b2118b&is=659f9c8b&hm=3b2a1ff6e6a2f095a7cf9053aa30f435588919a34080e26125bab5f8ae0e5af4& 08:45 < bridge> > As we've seen recently with efforts to drop old/obsolete network drivers, several outdated WiFi drivers were removed for Linux 6.8. Newly-dropped Wifi support include Libertas 16-bit PCMCIA support, Atmel at76c50x drivers, HostAP ISA/PCMCIA style 802.11b driver, zd1201 802.11b USB dongles, Orinoco ISA/PCMCIA 802.11b driver, Aviator/Raytheon driver, Planet WL3501 driver, and the RNDIS USB 802.11b driver. 08:45 < bridge> > 08:45 < bridge> > When it comes to network driver improvements in Linux 6.8, the Intel high-speed NIC driver has added support for temperature and clock information reporting, among other random improvements throughout the many network drivers. NVIDIA Mellanox Ethernet data center switches can also now enjoy firmware updates without a reboot. On the WiFi side there remains ongoing WiFi 7 work and Extremely High Throughput (EHT) improvements. 08:46 < bridge> @learath2 they did this 08:46 < bridge> > "Currently, variable-heavy structs in the networking stack is organized chronologically, logically and sometimes by cache line access. 08:46 < bridge> > 08:46 < bridge> > This patch series attempts to reorganize the core networking stack variables to minimize cacheline consumption during the phase of data transfer. Specifically, we looked at the TCP/IP stack and the fast path definition in TCP." 08:47 < bridge> Yeah, epyc 08:48 < bridge> xd 08:48 < bridge> we should restructure our structs too 08:48 < bridge> kek 08:49 < bridge> Unlikely it would matter for us. We probably wouldn't even notice it with all the lower hanging fruit 09:08 < bridge> minecraft happy about that 09:22 < bridge> :tear: 09:24 < bridge> do they use tcp? 09:24 < bridge> yes 10:08 < bridge> so true 10:10 < bridge> good morning you fiends 10:10 < bridge> https://media.discordapp.net/attachments/1010897757063610448/1170359771795304538/juALdbzB.gif?ex=6558c179&is=65464c79&hm=780cf107919e6bc421219bb031b20d43c59490c6fc43a21cd3afeb752dc6d42d& 10:10 < bridge> how can i narrow the result of pResult->GetString(0) down to standard characters ? (abcd....) and (123456...) 10:11 < bridge> idk if ddnet has any alphanumeric filter or rly and string filter routine 10:12 < bridge> I've created a function for that: 10:12 < bridge> ```c++ 10:12 < bridge> int str_check_special_chars(const char *pStr) 10:12 < bridge> { 10:12 < bridge> while(*pStr) 10:12 < bridge> { 10:12 < bridge> if (!((*pStr >= 'a' && *pStr <= 'z') || (*pStr >= 'A' && *pStr <= 'Z') || (*pStr >= '0' && *pStr <= '9'))) 10:12 < bridge> return 0; 10:12 < bridge> pStr++; 10:12 < bridge> } 10:12 < bridge> return 1; 10:12 < bridge> }``` 10:12 < bridge> you can iterate over it and remove characters that aren't in the ranges of 0x30-0x39, 0x41-0x5A, 0x61-0x7a 10:12 < bridge> damn 10:12 < bridge> quick 10:13 < bridge> idk if ddnet has any alphanumeric filter or rly any string filter routine 10:13 < bridge> it's from my mod, it simply checks a string for containing only alphanumeric characters. if not, it returns 0 10:13 < bridge> do you just copy my problem to chatgpt ? 10:13 < bridge> im sure std has something very quick and brief for this btw 10:14 < bridge> ```c++ 10:14 < bridge> if (str_check_special_chars(aUsername) == 0) 10:14 < bridge> { 10:14 < bridge> pSelf->SendChatTarget(pResult->m_ClientID, "Your username can only consist of letters and numbers"); 10:14 < bridge> return; 10:14 < bridge> }``` 10:14 < bridge> he makes the f-ddrace mod 10:14 < bridge> (from my ConRegister) 10:15 < bridge> i gonna use it for registering stuff too 10:15 < bridge> 👍 10:15 < bridge> imagine asking chtgpt about ddnet codebase lmao 10:16 < bridge> ```cpp 10:16 < bridge> std::string in, out; 10:16 < bridge> std::copy_if (in.begin(), in.end(), std::back_inserter(out), [](char c) { 10:16 < bridge> return std::isalnum(c); 10:16 < bridge> }); 10:16 < bridge> ``` 10:16 < bridge> i'd probably do smth like that 10:16 < bridge> googling failed me in finding a quicker way 10:16 < bridge> Probably works equally as fine 10:16 < bridge> yea 10:16 < bridge> da brevity doe 10:17 < bridge> hm this one just needs its std::isalnum 10:17 < bridge> yea 10:17 < bridge> true 10:18 < bridge> I've decided to adapt to ddnet's system.cpp style 10:18 < bridge> for wat 10:18 < bridge> superior of system.c :troll: 10:18 < bridge> but i really don't feel like making the account system in c++, can some one give me direction in using sql ? 10:18 < bridge> indeed 10:18 < bridge> what do u need direction for 10:18 < bridge> what specifically do u not know how to do 10:19 < bridge> check out mrpg, there is some mysql based account system 10:19 < bridge> everything :justatest: 10:19 < bridge> . 10:21 < bridge> i tiered of making same shit in my every program and function 10:21 < bridge> idk what u mean 10:21 < bridge> that's life 10:22 < bridge> a cant no more make one of these. 10:22 < bridge> ```cpp 10:22 < bridge> char abuff[1001]; 10:22 < bridge> str_format(abuff, sizeof(abuff), 10:22 < bridge> ``` 10:22 < bridge> there are strategies that make it so you rarely have to write duplicate code 10:22 < bridge> oh yeah 10:22 < bridge> such is life 10:23 < bridge> for simple stuff like this you can add an auxiliary buffer higher in scope just for formats & copies, guaranteed that you never access it before setting it, keep a pointer or reference to it, etc 10:23 < bridge> so u can just use the same buffer for all ur string formats & copy them where they're needed 10:23 < bridge> not "all" but a lot 10:24 < bridge> :cammo: 10:24 < bridge> i have never interfaced with sql in ddnet so the implementation details are outside my grasp 10:24 < bridge> i don't imagine it's anything difficult 10:24 < bridge> you have your string query and you get your results 10:24 < bridge> Why not `isalpha`? 10:24 < bridge> sift through them 10:24 < bridge> and continue the tedium of life 10:24 < bridge> checkout CScore code in ddney 10:24 < bridge> idk, made it a long time ago 10:24 < bridge> ddnet 10:25 < bridge> afair it has some sql interaction 10:25 < bridge> is mrpg a mod for ddnet ? 10:25 < bridge> yup 10:25 < bridge> kurosio refactored it a little™ 10:25 < bridge> so better check ddnet code :kek: 10:26 < bridge> where is that boy who said to me use sql, guide me 10:26 < bridge> https://tenor.com/view/dat-boi-frog-unicycle-gif-5480965 10:26 < bridge> rare reference 10:27 < bridge> @kekomonter 10:27 < bridge> help..... 10:27 < bridge> https://github.com/ddnet/ddnet/blob/master/src/game/server/score.cpp 10:30 < bridge> what should i make in dd net. 10:30 < bridge> i am sort of bored 10:38 < bridge> Whut? 10:38 < bridge> did u read 10:39 < bridge> :justatest: 10:39 < bridge> This was my worst words 10:56 < bridge> hi man 10:56 < bridge> :justatest: 10:57 < bridge> I think you can just take from my mode and refactor for your, this will be easiest than my explaining of sql in ddnet code 10:58 < bridge> ok 10:58 < bridge> And my explaining will be hard to understand cuz my english is so bad xd 10:58 < bridge> cool 11:00 < bridge> And my explanation will be hard to understand cuz my english is so bad xd 11:02 < bridge> yup 11:06 < bridge> Ah, I guess I can do that now that I have a bit of time 11:07 < bridge> I wonder if people still care 11:11 < bridge> Yes 11:15 < bridge> Probably. At least I think I would use it 11:33 < bridge> ❤️ 11:35 < bridge> yes 11:44 < bridge> I'd like to see a timer counting it down as a more nerdy option xD 11:45 < bridge> I'd like to see a timer counting it down as a more nerdy option (like with numbers) xD 12:22 < bridge> i want to make folder named "Account" when a server created. where do i need to put this ? 12:22 < bridge> ```cpp 12:22 < bridge> if(!Storage()->FolderExists("Accounts", IStorage::TYPE_SAVE)) 12:22 < bridge> { 12:22 < bridge> Storage()->CreateFolder("Accounts", IStorage::TYPE_SAVE); 12:22 < bridge> } 12:22 < bridge> ``` 12:22 < bridge> i want to make folder named "Accounts" when a server created. where do i need to put this ? 12:22 < bridge> ```cpp 12:22 < bridge> if(!Storage()->FolderExists("Accounts", IStorage::TYPE_SAVE)) 12:22 < bridge> { 12:22 < bridge> Storage()->CreateFolder("Accounts", IStorage::TYPE_SAVE); 12:22 < bridge> } 12:22 < bridge> ``` 12:22 < bridge> Do you know the hierarchy? 12:23 < bridge> Like, where the server is starting (c++ main function) 12:23 < bridge> and how everything is initializing from it? 12:23 < bridge> no, i put it in CServer::Init() but it gave me an segmentation fault at building time 12:23 < bridge> What does it say? 12:24 < bridge> just segmentation fault, nothing else 12:24 < bridge> (my guess: storage is not yet initialized) 12:24 < bridge> do you develop in release mode? 12:25 < bridge> this is the code i use everytime 12:25 < bridge> 12:25 < bridge> $ cmake --build ../build && ./../build/DDNet-Server.exe 12:25 < bridge> holy shit he’s doing it like a barbarian 12:25 < bridge> ok 12:25 < bridge> why 😂 12:26 < bridge> cosmos do it in CStorage ctor 12:26 < bridge> or rather after 12:26 < bridge> immediately after 12:26 < bridge> anyways, fast-forward: I personally create the folder in CGamecontext::OnInit(), but that's up to you where you do it 12:26 < bridge> juts make sure the m_pStorage pointer is actually set 12:26 < bridge> then it should work 12:26 < bridge> yah 12:26 < bridge> im hungry 12:26 < bridge> what to eat 12:26 < bridge> same, gonna do lunch break soon 12:27 < bridge> no home food and nothing is open 12:27 < bridge> ugh 12:28 < bridge> I'm at work, gonna grab something from the chicken truck 12:28 < bridge> sweet 12:28 < bridge> what do u do at work 12:28 < bridge> programming 12:28 < bridge> websites though, using VueJS 12:29 < bridge> frontend and backend 12:29 < bridge> sweet 12:29 < bridge> yea 12:29 < bridge> i should give my website some attention 12:29 < bridge> same 12:29 < bridge> buttoo lazy 12:29 < bridge> admittedly I am slow to pick up on new tech 12:29 < bridge> especially pertaining to the web 12:29 < bridge> it's a pain in the ass anyways 12:30 < bridge> i am using the vanilla stack but I could probably benefit from a css framework 12:30 < bridge> CSS, supporting different browsers, etc 12:30 < bridge> css is fine 12:30 < bridge> at least we were allowed to drop internet explorer support 12:30 < bridge> cuz THATS a pain in the ass 12:30 < bridge> yea 12:31 < bridge> i am so hungry 12:31 < bridge> Ok, gtg grab some food 12:31 < bridge> see you in half an hour 13:00 < bridge> how’s food 13:02 < bridge> was nice 13:02 < bridge> u still hungry? haha 13:02 < bridge> i neglected to start cooking until just now 13:02 < bridge> got rice 13:03 < bridge> and some chicken 13:03 < bridge> :kek: 13:03 < bridge> :justatest: 13:03 < bridge> me rn 13:06 < bridge> i don’t like this kind of chicken… 13:06 < bridge> 🐔 13:07 < bridge> maybe i will use some of this ground beef instead 13:24 < bridge> i added 1 folder and 2 files to the src directory. 13:24 < bridge> now it wont compile 13:24 < bridge> ```bash 13:24 < bridge> [127/135] Linking CXX executable DDNet-Server.exe 13:24 < bridge> FAILED: DDNet-Server.exe 13:24 < bridge> cmd.exe /C "cd . && C:\msys64\ucrt64\bin\c++.exe -O3 -DNDEBUG @CMakeFiles\game-server.rsp -o DDNet- 13:24 < bridge> Server.exe -Wl,--out-implib,libDDNet-Server.dll.a -Wl,--major-image-version,0,--minor-image-version, 13:24 < bridge> 0 && cd ." 13:24 < bridge> C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: 13:24 < bridge> CMakeFiles/game-server.dir/src/game/server/ddracechat.cpp.obj:ddracechat.cpp:(.text+0x54a3): undefi 13:24 < bridge> ned reference to `SkyB::IsStandardString(char const*)' 13:24 < bridge> C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: 13:24 < bridge> CMakeFiles/game-server.dir/src/game/server/ddracechat.cpp.obj:ddracechat.cpp:(.text+0x55a2): undefi 13:24 < bridge> ned reference to `SkyB::IsStandardString(char const*)' 13:24 < bridge> collect2.exe: error: ld returned 1 exit status 13:24 < bridge> [134/135] Building CXX object CMakeFiles/game-client.dir/src/game/editor/editor.cpp.obj 13:24 < bridge> ninja: build stopped: subcommand failed. 13:24 < bridge> ``` 13:26 < bridge> `undefined reference to SkyB::IsStandardString(char const*)` 13:26 < bridge> did you declare it in skyb.h? 13:28 < bridge> this is my value.h file 13:28 < bridge> ```cpp 13:28 < bridge> #ifndef SKYBLOCK_VALUES_H 13:28 < bridge> #define SKYBLOCK_VALUES_H 13:28 < bridge> 13:28 < bridge> //I put all of my values and functions here 13:28 < bridge> namespace SkyB 13:28 < bridge> { 13:28 < bridge> bool IsStandardString(const char *pStr); 13:28 < bridge> } 13:29 < bridge> ``` 13:29 < bridge> and this is the value.cpp file 13:29 < bridge> ```cpp 13:29 < bridge> #include "values.h" 13:29 < bridge> 13:29 < bridge> bool SkyB::IsStandardString(const char *pStr) 13:29 < bridge> { 13:29 < bridge> while(*pStr) 13:29 < bridge> { 13:29 < bridge> if (!((*pStr >= 'a' && *pStr <= 'z') || (*pStr >= 'A' && *pStr <= 'Z') || (*pStr >= '0' && *pStr <= '9'))) 13:29 < bridge> return false; 13:29 < bridge> pStr++; 13:29 < bridge> } 13:29 < bridge> return true; 13:29 < bridge> } 13:29 < bridge> ``` 13:29 < bridge> this is my values.h file 13:29 < bridge> ```cpp 13:29 < bridge> #ifndef SKYBLOCK_VALUES_H 13:29 < bridge> #define SKYBLOCK_VALUES_H 13:29 < bridge> 13:29 < bridge> //I put all of my values and functions here 13:29 < bridge> namespace SkyB 13:30 < bridge> { 13:30 < bridge> bool IsStandardString(const char *pStr); 13:30 < bridge> } 13:30 < bridge> ``` 13:30 < bridge> and this is the values.cpp file 13:30 < bridge> ```cpp 13:30 < bridge> #include "values.h" 13:30 < bridge> 13:30 < bridge> bool SkyB::IsStandardString(const char *pStr) 13:30 < bridge> { 13:30 < bridge> while(*pStr) 13:30 < bridge> { 13:30 < bridge> if (!((*pStr >= 'a' && *pStr <= 'z') || (*pStr >= 'A' && *pStr <= 'Z') || (*pStr >= '0' && *pStr <= '9'))) 13:30 < bridge> return false; 13:30 < bridge> pStr++; 13:30 < bridge> } 13:30 < bridge> return true; 13:30 < bridge> } 13:30 < bridge> ``` 13:30 < bridge> i see on one of the chillerdragon videos, he add something to the cmakelist.txt or something 13:31 < bridge> You need to add the file to cmake ,yes 13:31 < bridge> otherwise it won't be recognized 13:32 < bridge> is CmakeList.txt is auto generated? 13:32 < bridge> no 13:32 < bridge> No 13:32 < bridge> slowdragon 13:32 < bridge> Only if your name is vhllerrdragon 13:32 < bridge> Dude 13:33 < bridge> I in da plane xd 13:33 < bridge> hi vhllerrdragon 13:33 < bridge> I have a shell script that auto generates cmakelists 13:33 < bridge> Fakof xd 13:33 < bridge> where u flying tho 13:33 < bridge> bali 13:33 < bridge> fakof 13:34 < bridge> Ye 13:34 < bridge> have a nice time bro 13:34 < bridge>