.Dd $Mdocdate: March 12 2023 $
.Dt MAIN 3
.Os Telodendria Project
.Sh NAME
.Nm Main
.Nd Telodendria daemon entry function.
.Sh DESCRIPTION
.Pp
The
.Fn main
function is the first function that is executed. It is responsible
for setting things up and tearing them down. In order, it:
.Bl -bullet
.It
Creates a default logging configuration, installs the memory hook,
and prints the header.
.It
If running on OpenBSD, or is patched for other operating systems
that support it, executes
.Xr pledge 2
with a minimal set of permissions for security.
.It
Parses the command line arguments and sets the relevant flags.
.It
If running on OpenBSD, or is patched for other operating systems
that support it, executes
.Xr unveil 2
on the configuration file.
.It
parses and processes the configuration file.
.It
If running on OpenBSD, or is patched for other operating systems
that support it, executes
.Xr unveil 2
on the data directory, and then disables all future calls to
.Xr unveil 2 .
.It
Applies all settings from the configuration file.
.It
Changes into the data directory.
.It
Binds the HTTP socket.
.It
If running as the root user and not on OpenBSD or other operating
systems that support
.Xr unveil 2 ,
executes
.Xr chroot 2
on the data directory.
.It
Detects the running user, and\(emif specified in the
configuration\(emdrops permissions.
.It
Sets up the database, and cron runner, then starts
the HTTP server and installs the signal handlers.
.It
Blocks on the HTTP server.
.It
Shuts down the HTTP server, cleans up all memory and
file handles, then exits.
.El
.Sh RETURN VALUE
.Pp
.Fn main
returns
.Va EXIT_SUCCESS
if everything runs correctly and Telodendria is
quit normally. It returns
.Va EXIT_FAILURE
if there was a fatal failure before the HTTP
server could be started.
.Pp
These values are returned to the operating system and
indicate the exit status of the process.