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This patch allows ngIRCd to dump its internal state (connected clients,
actual configuration) when compiled with --enable-debug. The daemon
catches two more signals:
- SIGUSR1: toggle debug mode (on/off),
- SIGUSR2: dump internal state to console/syslog.
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now that the main signal handling is done from the dispatcher
loop we can call NGIRCD_Rehash() directly.
the /REHASH handler can queue the Rehash() function for
execution by sending a SIGHUP. It will be run when we
return back to the dispatch loop.
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Allows to defer/queue signal processing for execution on the next
event dispatch call, i.e. we can perform any signal action in
normal, non-signal context.
Example uses:
- Reload everything on HUP without writing a global "SIGHUP_received"
variable
- Dump status of internal Lists on SIGUSR1, etc.
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We use assert() in this header, so we should include assert.h.
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Fix synchronization of established connections and configured server
structures after a configuration update:
- Not only test servers that already have a connection, but also check
and update configured servers to which a new connection is beeing
established (SERVER_WAIT state).
- And do the server name comparision case-insensitive.
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Let CheckServers() not only skip servers that already have a
connection, but also skip servers to which a new connection is
already beeing established (SERVER_WAIT state).
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This fixes PING-PONG lag calculation (which resulted in "0" before).
The "lastping" time is still reset it if a time shift backwards has
been detected to prevent the daemon from miscalculating ping timeouts.
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Move common code to new local function Send_Marked_Connections()
and respect hostname cloaking.
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When a client has user mode "x" set, its real hostname is cloaked
by substituting it with the server name (as configured in ngircd.conf).
Restricted clients (user mode "r") aren't allowed to change mode "x".
Please note that hostname cloaking is only in effect in server-client
communication! The server still uses the real hostname for its own
logging and for all server-server communication -- therefore all servers
in the network must support user mode "x" to prevent older servers
from leaking the real hostname of a cloaked client!
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Store cloaked hostname if user mode "x" is set when the client
disconnects from the server.
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These two functions return the cloaked hostname, if the client has
enabled hostname cloaking indicated by the -- still to implement --
user mode "x". See furter patches :-)
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previously, the given MotdFile file was read whenever a client
requested it.
Change handling to read the MotdFile contents into memory once
during config file parsing.
Two side effects:
- changes to the MOTD file do not have any effect until ngircds
configuration is reloaded
- MOTD file does no longer have to reside in the chroot directory
(the MOTD contents will then not be re-read on reload in that case)
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before people had to create a /dev/null inside the chroot to make
redirection work.
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This allows IRC operators to change channel modes of ANY channel,
even without joining these channels first.
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This avoids a race and potentionally killing the wrong process on
systems that use randomized process IDs; now the child itself is
responsible to exit in a timely manner using SIGALRM.
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This is useful in forked child processes, for example, to make sure that
they don't hold connections open that the main process wants to close.
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Some variables are only used when compiling with IDENT or PAM support
or when the debug code is enabled. Mark them as "unused" so that gcc
doesn't generate warnings when neither of these options is enabled.
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When the "NoPAM" configuration option is set and ngIRCd is compiled
with support for PAM, ngIRCd will not call any PAM functions: all
connection attemps without password will succeed instead and all
connection attemps with password will fail.
If ngIRCd is compiled without PAM support, this option is a dummy
option and nothing changes: the global server password will still be
in effect.
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For each client connection a child process is forked which handles the
actual PAM authentication and reports the result back to the master
process using a pipe for communication.
While the PAM authentication is in process the daemon does not block.
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The Client_SetOrigUser() function is used to store the peer-provided
user name (see USER command) in its original form, not changed by
IDENT results, for example.
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Get PROC_STAT sub-process structure of a given connection.
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See commit d4632a727fbee6: it's not necessary any more!
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Rename Log_Init_Resolver, Log_Exit_Resolver, and Log_Resolver to
Log_Init_Subprocess, Log_Exit_Subprocess, and Log_Subprocess and
make it more generic thereby.
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conn.h and cinn-func.h both already #include client.h, so it is
not needed to do it twice.
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