Patch
Patched Source
Upstream Source
You can choose to use the upstream source code, but you must apply patches to get it to build properly.
WARNING: If you are on OpenBSD 7.5, you must patch znc-1.9.0 to avoid a threading bug that causes segfaults and to fix a bug in the schat module.
First, download the latest stable release:
$ cd ~ $ ftp https://znc.in/releases/znc-1.9.0.tar.gz
We recommend you verify the gpg signature:
$ doas pkg_add gnupg $ ftp https://znc.in/releases/znc-1.9.0.tar.gz.sig $ gpg --recv-key D5823CACB477191CAC0075555AE420CC0209989E $ gpg --verify znc-1.9.0.tar.gz.sig znc-1.9.0.tar.gz
Next, extract and unzip? the files:
$ tar xvzf znc-1.9.0.tar.gz
Patches
Due to a bug in OpenBSD 7.5, we have applied a custom patch to ZNC to avoid segfaults on multicore servers:
diff -u -r znc-1.9.0-old/src/main.cpp znc-1.9.0-new/src/main.cpp
--- znc-1.9.0-old/src/main.cpp Wed Feb 21 18:23:17 2024
+++ znc-1.9.0-new/src/main.cpp Mon May 27 12:36:48 2024
@@ -292,6 +292,7 @@
}
int main(int argc, char** argv) {
+ pthread_attr_t a; pthread_attr_init(&a);
CString sConfig;
CString sDataDir = "";
IRCNow provides a patched version of ZNC:
$ cd ~ $ ftp https://ircnow.org/software/znc-1.9.0a.tar.gz
On OpenBSD, ftp? can also be used to download files from the web.
For tar?, the options xvzf stand for e(x)tract, (v)erbose, un(z)ip, and (f)ile.
$ tar xvzf znc-1.9.0a.tar.gz
Chroot script
We also added the following chroot.sh script to make it easier to build chroots for ZNC: