R
rh0dium
Hi all,
I don't understand the signal module. I guess I understand what it
does in principle but I can't figure out how to use it to timeout an
external rsh command after a 5 seconds. Does anyone know how to do
this.
Here is what I have so far - which is largely based on the example on
the man page..
def handler(signum, frame):
print 'Signal handler called with signal', signum
raise IOError, "Couldn't open device!"
for host in alive:
try:
# Set the signal handler and a 5-second alarm
signal.signal(signal.SIGALRM, handler)
signal.alarm(5)
(out,results) = commands.getstatusoutput( "rsh %s uname
-a" % host)
signal.alarm(0) # Disable the alarm
#self.logger.debug( "%s Connection to %s - %s" %
(out,host,results))
if out ==256:
noaccess.append(host)
del alive[host]
break
if out == 0:
if re.search("SunOS",results):
hosttype="sun"
elif re.search("Linux",results):
hosttype="linux"
Can anyone point me in the right direction. Much appreciated!!
I don't understand the signal module. I guess I understand what it
does in principle but I can't figure out how to use it to timeout an
external rsh command after a 5 seconds. Does anyone know how to do
this.
Here is what I have so far - which is largely based on the example on
the man page..
def handler(signum, frame):
print 'Signal handler called with signal', signum
raise IOError, "Couldn't open device!"
for host in alive:
try:
# Set the signal handler and a 5-second alarm
signal.signal(signal.SIGALRM, handler)
signal.alarm(5)
(out,results) = commands.getstatusoutput( "rsh %s uname
-a" % host)
signal.alarm(0) # Disable the alarm
#self.logger.debug( "%s Connection to %s - %s" %
(out,host,results))
if out ==256:
noaccess.append(host)
del alive[host]
break
if out == 0:
if re.search("SunOS",results):
hosttype="sun"
elif re.search("Linux",results):
hosttype="linux"
Can anyone point me in the right direction. Much appreciated!!