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wiretap.go
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wiretap.go
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package wiretap
/*
#cgo pkg-config: glib-2.0
#cgo CFLAGS: -I/usr/local/include/wireshark -I/usr/include/wireshark
#cgo LDFLAGS: -lwiretap
#include "wiretap/wtap.h"
*/
import "C"
import "fmt"
type Handle struct {
wth *C.wtap
}
func (h Handle) SnapLen() int {
return int(C.wtap_snapshot_length(h.wth))
}
func (h Handle) PacketHeader() (*PacketHeader, error) {
p := C.wtap_phdr(h.wth)
if p == nil {
return nil, fmt.Errorf("invalid packet header")
}
return &PacketHeader{p}, nil
}
func (h Handle) FileSize() int {
return 0
}
func (h Handle) FileType() int {
return 0
}
func (h Handle) IsCompressed() bool {
return false
}
func (h Handle) Close() {
}
func (h Handle) FDClose() {
}
func (h Handle) SequentialClose() {
}
func OpenOffline(fileName string) (*Handle, error) {
h := new(Handle)
var (
err C.int
errInfo string
)
cErrInfo := (*C.gchar)(C.CString(errInfo))
h.wth = C.wtap_open_offline(C.CString(fileName), &err, &cErrInfo, 1)
if err != 0 {
return nil, mkErr(int(err))
}
return h, nil
}