| Message ID | 1869a722c33ba47ab86c1acec399de3c2f3e58e3.1573840474.git.rosbrookn@ainfosec.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | generated Go libxl bindings using IDL | expand |
On 11/15/19 7:44 PM, Nick Rosbrook wrote: > From: Nick Rosbrook <rosbrookn@ainfosec.com> > > Re-define Uuid as [16]byte and implement fromC, toC, and String functions. > > Signed-off-by: Nick Rosbrook <rosbrookn@ainfosec.com> > --- > tools/golang/xenlight/xenlight.go | 37 +++++++++++++++++++++++++++++-- > 1 file changed, 35 insertions(+), 2 deletions(-) > > diff --git a/tools/golang/xenlight/xenlight.go b/tools/golang/xenlight/xenlight.go > index 6f0a9278ad..67c1bb1225 100644 > --- a/tools/golang/xenlight/xenlight.go > +++ b/tools/golang/xenlight/xenlight.go > @@ -86,7 +86,40 @@ type Devid int > > type MemKB uint64 > > -type Uuid C.libxl_uuid > +// Uuid is a domain UUID. > +type Uuid [16]byte > + > +// String formats a Uuid in the form "xxxx-xx-xx-xx-xxxxxx". > +func (u Uuid) String() string { > + s := "%x%x%x%x-%x%x-%x%x-%x%x-%x%x%x%x%x%x" > + opts := make([]interface{}, 16) > + > + for i, v := range u { > + opts[i] = v > + } > + > + return fmt.Sprintf(s, opts...) > +} > + > +func (u *Uuid) fromC(c *C.libxl_uuid) error { > + b := (*[16]C.uint8_t)(unsafe.Pointer(&c.uuid[0])) > + > + for i, v := range b { > + u[i] = byte(v) > + } Same thing here. (Actually I c&p'd the wrong code in my previous reply; but you get the idea.) Everything else looks good. -George
diff --git a/tools/golang/xenlight/xenlight.go b/tools/golang/xenlight/xenlight.go index 6f0a9278ad..67c1bb1225 100644 --- a/tools/golang/xenlight/xenlight.go +++ b/tools/golang/xenlight/xenlight.go @@ -86,7 +86,40 @@ type Devid int type MemKB uint64 -type Uuid C.libxl_uuid +// Uuid is a domain UUID. +type Uuid [16]byte + +// String formats a Uuid in the form "xxxx-xx-xx-xx-xxxxxx". +func (u Uuid) String() string { + s := "%x%x%x%x-%x%x-%x%x-%x%x-%x%x%x%x%x%x" + opts := make([]interface{}, 16) + + for i, v := range u { + opts[i] = v + } + + return fmt.Sprintf(s, opts...) +} + +func (u *Uuid) fromC(c *C.libxl_uuid) error { + b := (*[16]C.uint8_t)(unsafe.Pointer(&c.uuid[0])) + + for i, v := range b { + u[i] = byte(v) + } + + return nil +} + +func (u *Uuid) toC() (C.libxl_uuid, error) { + var c C.libxl_uuid + + for i, v := range u { + c.uuid[i] = C.uint8_t(v) + } + + return c, nil +} // defboolVal represents a defbool value. type defboolVal int @@ -499,7 +532,7 @@ type Dominfo struct { func (cdi *C.libxl_dominfo) toGo() (di *Dominfo) { di = &Dominfo{} - di.Uuid = Uuid(cdi.uuid) + di.Uuid.fromC(&cdi.uuid) di.Domid = Domid(cdi.domid) di.Ssidref = uint32(cdi.ssidref) di.SsidLabel = C.GoString(cdi.ssid_label)