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# The client writes a message to Sys::Syslog native method.
# The syslogd writes it into a file and through a pipe.
# The syslogd passes it via UDP to the loghost.
# The server receives the message on its UDP socket.
# Find the message in client, file, pipe, syslogd, server log.
# Check that a modified config file restarts syslogd child.
use strict;
use warnings;
our %args = (
client => {
func => sub { write_between2logs(shift, sub {
my $self = shift;
${$self->{server}}->loggrep("Signal", 8)
or die ref($self), " no 'Signal' between logs";
})},
loggrep => { get_between2loggrep() },
},
syslogd => {
ktrace => {
qr/syslogd PSIG SIGHUP caught handler/ => 1,
qr/syslogd RET execve 0/ => 4,
},
loggrep => {
qr/config file modified: restarting/ => 1,
qr/config file changed: dying/ => 1,
qr/syslogd: restarted/ => 0,
get_between2loggrep(),
},
},
server => {
func => sub { read_between2logs(shift, sub {
my $self = shift;
my $conffile = ${$self->{syslogd}}->{conffile};
open(my $fh, '>>', $conffile)
or die ref($self), " append conf file $conffile failed: $!";
print $fh "# modified\n";
close($fh);
${$self->{syslogd}}->kill_syslogd('HUP');
${$self->{syslogd}}->loggrep("syslogd: started", 5, 2)
or die ref($self), " no 'syslogd: started' between logs";
print STDERR "Signal\n";
})},
loggrep => { get_between2loggrep() },
},
file => {
loggrep => {
qr/syslogd\[\d+\]: start/ => 2,
qr/syslogd\[\d+\]: restart/ => 0,
qr/syslogd\[\d+\]: exiting/ => 1,
},
},
);
1;
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