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Common Unix practice is to prefer VISUAL over EDITOR, particularly if the editor of choice spawns a new window. Thus, it is also common to see settings like EDITOR='emacs -nw', with the expectation that the shell will parse this as an argument to 'emacs' and not try to invoke a file containing a space. If a user puts junk in EDITOR, they deserve what they get (much more than virsh will misbehave); furthermore, sudo scrubs EDITOR by default. So the blind use of metacharacters in EDITOR should not be considered too much of a security issue. * tools/virsh.c (editFile): Prefer VISUAL over EDITOR. Don't reject shell metacharacters in EDITOR. * tools/virsh.pod (edit, net-edit, ENVIRONMENT): Document VISUAL. Fixes https://bugzilla.redhat.com/show_bug.cgi?id=487738.
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>