* src/phyp/phyp_driver.[ch]: add new entry points and a number of
  cleanups

Implementation of tunnelled migration, using a Unix Domain Socket
on the qemu backend.  Note that this requires very new versions of
qemu (0.10.7 at least) in order to get the appropriate bugfixes.
Signed-off-by: NChris Lalancette <clalance@redhat.com>

Add the virStrncpy function, which takes a dst string, source string,
the number of bytes to copy and the number of bytes available in the
dest string.  If the source string is too large to fit into the
destination string, including the \0 byte, then no data is copied and
the function returns NULL.  Otherwise, this function copies n bytes
from source into dst, including the \0, and returns a pointer to the
dst string.  This function is intended to replace all unsafe uses
of strncpy in the code base, since strncpy does *not* guarantee that
the buffer terminates with a \0.
Signed-off-by: NChris Lalancette <clalance@redhat.com>

Signed-off-by: NChris Lalancette <clalance@redhat.com>

* libvirt.spec.in: activate phyp and fix the BuildDep to libssh2-devel
* src/phyp/phyp_driver.c: fix a debug macro to use the normal logging API

* configure.in src/Makefile.am: change detection and flags
* src/phyp/phyp_driver.c src/phyp/phyp_driver.h: connection now
  need to be done as part of the driver code, cleaned up by DV

Matthias correctly points out that escape_specialcharaters() takes a
length, and since we are now malloc()'ing string in phypOpen instead of
making it a static array, we can't use sizeof(string) anymore.  Calculate
the proper strlen and then use that both to allocate the string and also
pass it to escape_specialcharacters().
Signed-off-by: NChris Lalancette <clalance@redhat.com>

I came across this line in the phypOpen function:

char string[strlen(conn->uri->path)];

Here the path part of the given URI is used without checking it for
NULL, this can cause a segfault as strlen expects a string != NULL.
Beside that uuid_db and connection_data leak in case of an error.

In this line

conn->uri->path = string;

the original path of the URI leaks. The patch adds a VIR_FREE call
before setting the new path.

The attached patch is compile-tested but I don't have a Power
Hypervisor installation at hand to test it for real.

Matthias
Signed-off-by: NChris Lalancette <clalance@redhat.com>

A couple of minor fixes to phyp escape_specialcharacters.  Make it
a static function (since it's only used in phyp/phyp_driver.c), and
make it take a dstlen parameter.  This paves the way for removing
strncpy in the future.
Signed-off-by: NChris Lalancette <clalance@redhat.com>

* autobuild.sh: Disable esx/phyp build on mingw32
* configure.in: Fix handling of --without-phyp so it actually works
* libvirt.spec.in: Add missing interface.rng
* mingw32-libvirt.spec.in: Disable phyp/esx drivers
* src/phyp/phyp_driver.c: Fix missing i18n of error messages

Features supported:
- Connects to HMC/VIOS or IVM systems.
- Life cycle commands (resume and shutdown).
- dumpxml
- 'list' and 'list --all'

What is being implemented:
- better and centralized control for UUID
- definexml
- CPU management commands

* src/domain_conf.c src/domain_conf.h: first version of the driver
* configure.in src/Makefile.am include/libvirt/virterror.h
  src/domain_conf.[ch] src/libvirt.c src/virterror.c: glue the driver
  in the general framework