/** Test pcap dumper using dispatch. */
public void testPcapDumperUsingDispatch() {
Pcap pcap = Pcap.openOffline(fname, errbuf);
assertNotNull(errbuf.toString(), pcap);
PcapDumper dumper = pcap.dumpOpen(tmpFile.getPath());
assertNotNull(pcap.getErr(), dumper);
PcapHandler<PcapDumper> handler =
new PcapHandler<PcapDumper>() {
public void nextPacket(
PcapDumper dumper,
long seconds,
int useconds,
int caplen,
int len,
ByteBuffer buffer) {
dumper.dump(seconds, useconds, caplen, len, buffer);
}
};
/*
* Our test file is small, about 24K bytes in size, should fit inside a
* buffer full.
*/
int r = pcap.dispatch(Pcap.DISPATCH_BUFFER_FULL, handler, dumper);
assertTrue("Something happened in dispatch", r == Pcap.OK);
dumper.close();
pcap.close();
// System.out.printf("%s: tmp=%d, source=%d\n", tmpFile.getName(), tmpFile
// .length(), new File(fname).length());
//
assertEquals(
"dumped file and source file lengths don't match",
tmpFile.length(),
new File(fname).length());
}
/** Test pcap dumper using loop. */
public void testPcapDumperUsingLoop() {
Pcap pcap = Pcap.openOffline(fname, errbuf);
assertNotNull(errbuf.toString(), pcap);
PcapDumper dumper = pcap.dumpOpen(tmpFile.getPath());
assertNotNull(pcap.getErr(), dumper);
PcapHandler<PcapDumper> handler =
new PcapHandler<PcapDumper>() {
public void nextPacket(
PcapDumper dumper,
long seconds,
int useconds,
int caplen,
int len,
ByteBuffer buffer) {
dumper.dump(seconds, useconds, caplen, len, buffer);
}
};
int r = pcap.loop(Pcap.LOOP_INFINATE, handler, dumper);
assertTrue("Something happened in the loop", r == Pcap.OK);
dumper.close();
pcap.close();
// System.out.printf("%s: tmp=%d, source=%d\n", tmpFile.getName(), tmpFile
// .length(), new File(fname).length());
//
assertEquals(
"dumped file and source file lengths don't match",
tmpFile.length(),
new File(fname).length());
}
@Test
public void testDump() throws Exception {
String dumpFile =
new StringBuilder()
.append(tmpDirPath)
.append("/")
.append(getClass().getSimpleName())
.append(".pcap")
.toString();
PcapHandle handle = Pcaps.openDead(DataLinkType.RAW, 65536);
PcapDumper dumper = handle.dumpOpen(dumpFile);
dumper.dump(ipV4, 0, 0);
dumper.dump(ipV6, 0, 0);
dumper.close();
handle.close();
FileInputStream in1 =
new FileInputStream(
new StringBuilder()
.append(resourceDirPath)
.append("/")
.append(getClass().getSimpleName())
.append(".pcap")
.toString());
FileInputStream in2 = new FileInputStream(dumpFile);
byte[] buffer1 = new byte[100];
byte[] buffer2 = new byte[100];
int size;
while ((size = in1.read(buffer1)) != -1) {
assertEquals(size, in2.read(buffer2));
assertArrayEquals(buffer1, buffer2);
}
in1.close();
in2.close();
}