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don't go ham on removing fmt useful data

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soypat
2026-09-04 06:27:05 -07:00
parent 88bd43bdd3
commit 3d15e0ff7b
6 changed files with 54 additions and 7 deletions
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arp/frame.go
+17 -2
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@@ -5,6 +5,7 @@ import (
"github.com/soypat/lneto"
"github.com/soypat/lneto/ethernet"
"github.com/soypat/lneto/internal"
)
// NewFrame returns a Frame with data set to buf.
@@ -142,10 +143,24 @@ func (afrm Frame) ValidateSize(v *lneto.Validator) {
}
}
// String returns a basic human readable represetation of ARP frame.
func (afrm Frame) String() string {
opstr := afrm.Operation().String()
var rawbuf [11]byte
rawbuf := make([]byte, 0, 128)
b := append(rawbuf[:0], "ARP "...)
b = append(b, opstr...)
return string(rawbuf[:len(b)])
htyp, hlen := afrm.Hardware()
b = internal.AppendStrDecimal(b, " htyp=", int64(htyp))
b = internal.AppendStrDecimal(b, " hlen=", int64(hlen))
ptyp, plen := afrm.Protocol()
b = internal.AppendStrDecimal(b, " plen=", int64(plen))
b = append(b, " proto="...)
b = append(b, ptyp.String()...)
hw, proto := afrm.Target()
b = internal.AppendStrHexData(b, " htgt=", hw...)
b = internal.AppendStrHexData(b, " ptgt=", proto...)
hw, proto = afrm.Sender()
b = internal.AppendStrHexData(b, " hsnd=", hw...)
b = internal.AppendStrHexData(b, " psnd=", proto...)
return string(b)
}