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SELinux wants all log files opened with O_APPEND. When running non-root though, libvirtd likes to use O_TRUNC to avoid log files growing in size indefinitely. Instead of using O_TRUNC though, we can use O_APPEND and then call ftruncate() which keeps SELinux happier. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> (cherry picked from commit 639d5c4966478d28a96bf06f2ccc9ef6418f4736)
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>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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