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fluffy
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Flesh out Go pcap library

This commit is contained in:
Neale Pickett 2014-01-08 11:49:55 -07:00
parent af0ebc7836
commit 8e11fc0b4d
1 changed files with 23 additions and 6 deletions
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29
pcap.go
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@ -30,9 +30,14 @@ type PcapFile struct {
} }
type FrameHeader struct { type FrameHeader struct {
ts time.Time Sec uint32
caplen uint32 Usec uint32
framelen uint32 Caplen uint32
Framelen uint32
}
func (h *FrameHeader) Time() time.Time {
return time.Unix(int64(h.Sec), int64(h.Usec) * 1000)
} }
type Frame struct { type Frame struct {
@ -78,13 +83,13 @@ func (r *Reader) Read() (*Frame, error) {
return nil, err return nil, err
} }
payload := make([]byte, h.caplen) payload := make([]byte, h.Caplen)
l, err := r.r.Read(payload) l, err := r.r.Read(payload)
if err != nil { if err != nil {
return nil, err return nil, err
} }
if uint32(l) < h.caplen { if uint32(l) < h.Caplen {
return nil, fmt.Errorf("Short read: %d (wanted %d)", l, h.caplen) return nil, fmt.Errorf("Short read: %d (wanted %d)", l, h.Caplen)
} }
ret := &Frame{h, payload} ret := &Frame{h, payload}
@ -98,4 +103,16 @@ func main() {
} }
fmt.Println(r.order, r.header) fmt.Println(r.order, r.header)
for ;; {
frame, err := r.Read()
if err != nil {
panic(err)
}
if frame == nil {
break
}
fmt.Println("hi")
fmt.Println(frame)
}
} }