087a74e160
There is one specific caller (testInfoSetArgs() in qemuxml2argvtest.c) which expect the va_list argument to change after returning from the virQEMUCapsSetVAList() function. However, since we are passing plain va_list this is not guaranteed. The man page of stdarg(3) says: If ap is passed to a function that uses va_arg(ap,type), then the value of ap is undefined after the return of that function. (ap is a variable of type va_list) I've seen this in action in fact: on i686 the qemuxml2argvtest fails on the second test case because testInfoSetArgs() sees ARG_QEMU_CAPS and calls virQEMUCapsSetVAList to process the capabilities (in this case there's just one QEMU_CAPS_SECCOMP_BLACKLIST). But since the changes are not reflected in the caller, in the next iteration testInfoSetArgs() sees the QEMU capability and not ARG_END. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> |
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| ABOUT-NLS | ||
| AUTHORS.in | ||
| autogen.sh | ||
| bootstrap | ||
| bootstrap.conf | ||
| cfg.mk | ||
| ChangeLog-old | ||
| config-post.h | ||
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| libvirt-admin.pc.in | ||
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| libvirt-qemu.pc.in | ||
| libvirt.pc.in | ||
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| README | ||
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Libvirt API for virtualization
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.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser General
Public License, version 2.1 (or later). Some parts of the code that are
not part of the C library may have the more restrictive GNU General
Public License, version 2.1 (or later). See the files COPYING.LESSER
and COPYING for full license terms & conditions.
Installation
Libvirt uses the GNU Autotools build system, so in general can be built and installed with the usual commands. For example, to build in a manner that is suitable for installing as root, use:
$ ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
$ make
$ sudo make install
While to build & install as an unprivileged user
$ ./configure --prefix=$HOME/usr
$ make
$ make install
The libvirt code relies on a large number of 3rd party libraries. These will
be detected during execution of the configure script and a summary printed
which lists any missing (optional) dependencies.
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: