Re: [libvirt] [RFC] net-dhcp-leases: Query: Reg: Leases API Script

On Tue, Oct 22, 2013 at 9:10 PM, Eric Blake <eblake(a)redhat.com&gt; wrote: > On 10/22/2013 04:15 PM, Daniel P. Berrange wrote: >> On Tue, Oct 22, 2013 at 04:15:37PM +0530, Nehal J Wani wrote: >>> Q1. The --dhcp-script option will require libvirt to provide a script >>> or executable file to be run. Now as the man page says, this file is >>> executed "Whenever a new DHCP ease is created, or an old one >>> destroyed". Life was easy with the script, as it used the command sed >>> to remove the destroyed lease. eblake had suggested me to use a C >>> program instead. So I wanted to finalize whether to go with C or >>> continue with shell script. >> >> Libvirt aims to avoid shell code whereever possible, since it is really >> a very bad language from terms of reliability and security. eg quoting >> rules are easy to get wrong, error handling is awful, portability is >> non-trivial. > > For examples of writing a helper C program, see how src/util/iohelper.c > is compiled into libvirt_iohelper. > What are libvirt's views on python as a helper program?