Hi, Fairly new to python, messing with some socket and pcap sniffing and have come across the following issue while trying to do a pcap_loop (via pcapy http://oss.coresecurity.com/projects/pcapy.html). I believe i recall seeing similar stuff using other pcap libs with python in the past (such as pylibpcap)
in a nutshell, blocking on a read using socket.recvfrom(buf), which strace shows me is sitting in recvfrom(2) allows ctrl-c to be raised as keyboardInt, which i can catch with try/except or just let it go all the way up and kill the script. But calling pcapy.loop(5,cbk) which also, via strace, is sitting in recvfrom(2) - via libpcap itself - cannot be interrupted with sigint, strace shows the signal, but nothing raises. Here are some snippets that show the issue and code pcapy_hangs -- http://rafb.net/p/369n4I81.html socket_no_hang -- http://rafb.net/p/DCa4cV71.html Any light that someone can shed on this would be greatly appreciated, or what is a usual workaround (is this a symptom of calling recvfrom via a compiled lib like pcapy somehow set SIG_IGN on SIGINT ?) tia, -jeff -- http://mail.python.org/mailman/listinfo/python-list
