Commit Graph

18 Commits

Author SHA1 Message Date
Federico G. Schwindt 8e6db769ac Check and call arc4random_stir() if present
FreeBSD prior to 10.0 does not automatically stir on fork(). Same with
current NetBSD. If arc4random_stir() is present assume is needed and
call it instead of srand().
2013-10-23 16:00:26 +01:00
Federico G. Schwindt 17589534d0 Add support for arc4random
If arc4random is present it will be used over the srand/rand interface.
This fixes some warnings in OpenBSD-current.
2013-10-16 16:32:06 +01:00
Alexander Barton cc06e1ff89 Proc_Close(): Only close socket if it is still valid
It could be invalid when calling Proc_Close() a 2nd time, for exmaple,
which could happen when we hit a timeout doing IDENT requests :-(
2012-01-06 02:26:04 +01:00
Alexander Barton 30796698a9 Only close "unrelated" sockets in forked child processes
This fixes the problem that ngIRCd can't do any IDENT lookups because
of the socket has already been closed in the child process.

The bug has been introduced starting with ngIRCd 17 ... :-(
(commit ID 6ebb31ab35)
2011-09-07 14:51:16 +02:00
Alexander Barton 69803d6ff1 Use Proc_Close() to remove no longer unused pipes to child processes
This removes spurious (but harmless) debug messages.
2011-08-23 12:32:05 +02:00
Alexander Barton be6994aece New function Proc_Close() to shutdown pipes to child processes 2011-08-23 12:31:17 +02:00
Alexander Barton 7f8d0ea5a3 Use srand()/rand() instead of srandom()/random(); seems to be more portable 2011-06-26 23:39:20 +02:00
Alexander Barton e70e81460b Add some type casts to random() and srandom() functions
This fixes two gcc warnings (on Mac OS X):
 "warning: implicit conversion shortens 64-bit value into a 32-bit value"
2011-04-12 21:23:14 +02:00
Florian Westphal 5acb90fafc ngircd: improve rng initialisation
we do not need this for cryptographic purposes, but we can do better
than plain srandom(getpid()).

Also, keep in mind that rng state is inherited across fork(), so re-init
it in the child.
2011-03-28 00:29:58 +02:00
Alexander Barton 03628dbeaf Add Doxygen @file documentation to each source and header file 2011-02-13 17:52:38 +01:00
Florian Westphal 1fe17e246c Add new 'delayed' signal handlers.
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.
2010-09-11 11:36:12 +02:00
Alexander Barton 6ebb31ab35 Remove Proc_Kill(), use timeout to kill child processes
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.
2010-07-14 10:29:05 +02:00
Alexander Barton 9cd3494de9 Don't Proc_Kill() childs after Proc_Read(): done there already. 2010-07-13 22:29:06 +02:00
Alexander Barton 57a2faf4a7 Use Proc_GenericSignalHandler() as handler for SIGTERM by default 2010-07-13 22:04:35 +02:00
Alexander Barton 79be1c477e Refactor Resolve_Read() into generic Proc_Read() function 2010-07-11 16:58:30 +02:00
Alexander Barton 7b5e2fe38e Make Proc_Kill() more fault-tolerant 2010-07-11 16:54:44 +02:00
Alexander Barton 4cc4c29e38 New function Proc_GenericSignalHandler() 2010-07-01 00:39:35 +02:00
Alexander Barton 54e67ea9ee New "module" proc.c/proc.h for generic process handling
The new "module" proc.c is used for functions dealing with child
processes. At the moment, it is only used by the asynchronous resolver.

All the functions already implemented habe been migrated from the
resolver code base, and the rest of the ngIRCd source code has been
adepted to the new namespace and calling conventions.

The goal is to develop "generic" process handling functions that can
be used for other purposes as well, e.g. running processes on client
connects etc.
2010-06-29 22:55:27 +02:00