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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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6c06d86d9a
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Eric Blake 6c06d86d9a string: make VIR_STRDUP easier to use 
While reviewing proposed VIR_STRDUP conversions, I've already noticed
several places that do:

if (str && VIR_STRDUP(dest, str) < 0)

which can be simplified by allowing str to be NULL (something that
strdup() doesn't allow).  Meanwhile, code that wants to ensure a
non-NULL dest regardless of the source can check for <= 0.

Also, make it part of the VIR_STRDUP contract that macro arguments
are evaluated exactly once.

* src/util/virstring.h (VIR_STRDUP, VIR_STRDUP_QUIET, VIR_STRNDUP)
(VIR_STRNDUP_QUIET): Improve contract.
* src/util/virstring.c (virStrdup, virStrndup): Change return
conventions.
* docs/hacking.html.in: Document this.
* HACKING: Regenerate.

Signed-off-by: Eric Blake <eblake@redhat.com>

Conflicts:
	HACKING
	docs/hacking.html.in

(cherry picked from commit 6b74a9f5d9)
2014-01-11 13:27:10 +01:00
.gnulib@bb2f5640d5 build: fix bootstrap on RHEL 2012-04-25 16:25:49 -06:00
daemon Fix crash in remoteDispatchDomainMemoryStats (CVE-2013-4296) 2013-09-18 21:10:27 -06:00
docs string: make VIR_STRDUP easier to use 2014-01-11 13:27:10 +01:00
examples Revert "Refactor the libvirt RPM daemon pieces" 2012-04-03 14:49:31 +08:00
gnulib build: fix fresh checkout on RHEL5 2012-04-19 17:11:43 -06:00
include blockjob: add new API flags 2012-04-23 07:44:29 -06:00
m4 build: allow building with newer glibc-headers and -O0 2013-09-18 16:50:56 -06:00
po Prepare for 0.9.12.2 2013-10-01 21:05:48 +02:00
python Coverity: Fix the forward_null error in Python binding codes 2012-05-04 10:23:57 +08:00
src string: make VIR_STRDUP easier to use 2014-01-11 13:27:10 +01:00
tests Move virProcess{Kill, Abort, TranslateStatus} into virprocess.{c, h} 2013-09-18 21:10:23 -06:00
tools virsh: Fix POD syntax 2013-09-18 21:06:24 -06:00
.dir-locals.el maint: let emacs avoid tabs in rng files 2011-08-13 08:56:26 -06:00
.gitignore Introduce APIs for splitting/joining strings 2013-09-18 21:10:20 -06:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: prune duplicate listings in AUTHORS 2012-02-03 09:56:45 -07:00
AUTHORS util: add functions for interating over json object 2012-05-03 09:07:25 -06:00
autobuild.sh Enable all warnings permanently & default to -Werror for GIT builds 2012-03-27 17:08:06 +01:00
autogen.sh build: allow for local gnulib diffs 2011-11-09 09:03:33 -07:00
bootstrap build: fix bootstrap on RHEL 2012-04-25 16:25:49 -06:00
bootstrap.conf build: fix bootstrap on RHEL 2012-04-25 16:25:49 -06:00
cfg.mk qemu: Add support for -no-user-config 2013-09-12 09:27:09 +02:00
ChangeLog-old virterror.c: Fix several spelling mistakes 2012-02-03 11:32:51 -07:00
configure.ac Prepare for 0.9.12.2 2013-10-01 21:05:48 +02:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING string: make VIR_STRDUP easier to use 2014-01-11 13:27:10 +01:00
libvirt.pc.in Fix typos in API XML file paths 2012-02-15 11:29:38 +00:00
libvirt.spec.in Add support for using 3-arg pkcheck syntax for process (CVE-2013-4311) 2013-09-18 21:10:27 -06:00
Makefile.am maint: add missing copyright notices 2011-07-28 15:01:17 -06:00
Makefile.nonreentrant Ban use of all inet_* functions 2010-10-22 11:59:23 +01:00
mingw32-libvirt.spec.in Fix typos in API XML file paths 2012-02-15 11:29:38 +00:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking maint: relax git minimum version 2010-02-24 14:29:27 -05:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README 

         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>