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The virt-login-shell program is supposed to look like a regular shell to clients. Login services like sshd expect the shell to accept a '-c cmdstring' argument to specify a command to launch instead of presenting an interactive prompt. We can implement this by simply passing the '-c cmdstring' data straight through to the real shell we use. This does not open any security holes, since the command is not run until we're inside the container namespaces. This allows scp to work for users with virt-login-shell. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>