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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Erik Skultety e711a3918f util: Fix virGetLastErrorMessage to return proper error when 'err' is NULL
Both virGetLastError and virGetLastErrorMessage call virLastErrorObject method
that returns a thread-local error object. However, if a direct call to malloc
or pthread_setspecific (probably also due to malloc, since it sets ENOMEM)
fail, virLastErrorObject returns NULL which, although incorrectly interpreted
by virGetLastError as no error, still requires the caller to check for NULL
pointer. This isn't the case with virGetLastErrorMessage that also treated it
incorrectly as no error, but returned the literal "no error".
This patch tweaks the checks in the virGetLastErrorMessage function, so that
if virLastErrorObject failed, it returned "unknown error" which is equivalent
to the current approach with virGetLastError and if it returned NULL,
"unknown error" was set.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-05-11 20:10:35 +02:00
.gnulib@6cc32c63e8 maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
build-aux bracket-spacing: Add syntax-check for unnecessary curly brackets 2014-11-14 17:13:36 +01:00
daemon admin: Introduce virAdmClientClose API 2016-05-10 16:05:17 +02:00
docs storage: Fix algorithm generating path names for devmapper 2016-05-11 09:23:31 -04:00
examples examples: Try harder to uninstall nwfilter 2016-04-20 17:33:55 +02:00
gnulib maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
include/libvirt admin: Introduce virAdmClientClose API 2016-05-10 16:05:17 +02:00
m4 uml: only build on Linux 2016-05-10 07:42:35 +03:00
po Pull latest translations from zanata 2016-05-04 12:11:23 +01:00
src util: Fix virGetLastErrorMessage to return proper error when 'err' is NULL 2016-05-11 20:10:35 +02:00
tests conf: log error when incorrect PCI root controller is added to domain 2016-05-10 17:03:24 -04:00
tools headers: Remove unnecessary keyword extern from function declaration 2016-05-11 09:06:32 +02:00
.ctags maint: Make ctags work out of the box 2013-07-18 08:47:21 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.gitignore Add qemucapsprobe in .gitignore 2016-05-05 10:09:59 +02:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: update .mailmap for recent contributions 2015-03-20 06:17:55 -06:00
AUTHORS.in Change maintainers list 2016-02-12 13:10:05 +03:00
autobuild.sh Disable libvirtd by default when building on Win32 2014-04-29 11:30:32 +01:00
autogen.sh maint: improve usage of autogen's --no-git 2015-02-06 11:35:29 -07:00
bootstrap maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
bootstrap.conf bootstrap: Don't require python-config 2015-08-06 14:35:14 +02:00
cfg.mk syntax-check: Enforce <code> inside <dt> elements 2016-04-25 12:09:34 +02:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
config-post.h nss: Implement _nss_libvirt_gethostbyname3_r 2016-03-18 17:29:53 +01:00
configure.ac storage: Fix virStorageBackendDiskDeleteVol for device mapper 2016-05-11 09:23:31 -04:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: Remove control characters from LGPL license file 2015-09-25 09:16:24 +02:00
HACKING maint: document use of zanata for translations 2015-06-10 15:26:44 -06:00
libvirt-admin.pc.in Add libvirt-admin library 2015-06-16 13:46:20 +02:00
libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt-qemu.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in spec: Fix broken indentation reported by syntax-check 2016-05-11 20:03:57 +02:00
Makefile.am Makefile: Enable distuninstallcheck again 2016-04-25 18:56:48 +02:00
Makefile.nonreentrant maint: use LGPL correctly 2013-05-20 14:03:48 -06:00
mingw-libvirt.spec.in parallels: substitute parallels with vz spec file and Makefile 2015-06-17 15:07:55 +03:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking docs: update README-hacking 2014-05-06 16:20:24 -06:00
run.in Add PKG_CONFIG_PATH to run.in script. 2014-06-26 14:32:35 +01:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

         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>