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cc5e2a849c
Guarantee that outbuf/errbuf are allocated on success, even if to the empty string. Caller always has to free the result, and empty output check requires checking if *outbuf=='\0'. Makes the API easier to use safely. Failure is best effort allocation (some paths, like out-of-memory, cannot allocate a buffer, but most do), so caller must free buffer on failure. * docs/internals/command.html.in: Update documentation. * src/util/command.c (virCommandSetOutputBuffer) (virCommandSetErrorBuffer, virCommandProcessIO) Guarantee empty string on no output. * tests/commandtest.c (test17): New test.
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>