Re: [libvirt] [PATCH v2 3/5] Remove network constants out of internal.h

On Mon, Jul 10, 2017 at 01:01:26PM +0200, Peter Krempa wrote: > On Wed, Jul 05, 2017 at 12:58:49 +0100, Daniel Berrange wrote: > > The HOST_NAME_MAX, INET_ADDRSTRLEN and VIR_LOOPBACK_IPV4_ADDR > > constants are only used by a handful of files, so are better > > kept in virsocketaddr.h > > > > Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; > > --- > > src/internal.h | 16 ---------------- > > src/libxl/libxl_conf.c | 1 + > > src/nwfilter/nwfilter_dhcpsnoop.c | 1 + > > src/nwfilter/nwfilter_gentech_driver.c | 1 + > > src/qemu/qemu_conf.c | 1 + > > src/util/virsocketaddr.h | 16 ++++++++++++++++ > > src/util/virutil.c | 1 + > > src/vz/vz_sdk.c | 1 + > > 8 files changed, 22 insertions(+), 16 deletions(-) > > > > [...] > > > diff --git a/src/util/virsocketaddr.h b/src/util/virsocketaddr.h > > index 43a3706..ae76166 100644 > > --- a/src/util/virsocketaddr.h > > +++ b/src/util/virsocketaddr.h > > @@ -32,6 +32,22 @@ > > # include <sys/un.h> > > # endif > > > > +/* On architectures which lack these limits, define them (ie. Cygwin). > > + * Note that the libvirt code should be robust enough to handle the > > + * case where actual value is longer than these limits (eg. by setting > > + * length correctly in second argument to gethostname and by always > > + * using strncpy instead of strcpy). > > + */ > > +# ifndef HOST_NAME_MAX > > +# define HOST_NAME_MAX 256 > > I'm not entirely convinced that this semantically belongs to > virsocketaddr.h > > At least in the virlog.c usage case it is not used in any way in regards > to network communication. The constant is used to define a hostname string buffer, which is then used with the gethostname() system call. That's network related IMHO.