read old format pcap files

src/main.rs

@@ -4,6 +4,43 @@ use pcap_parser::traits::PcapReaderIterator;
 use std::fs::File;
 
 pub fn main() {
+  old_format();
+
+}
+
+pub fn old_format() {
+
+  let path = "anim.pcap";
+  let file = File::open(path).unwrap();
+  let mut num_blocks = 0;
+  let mut reader = LegacyPcapReader::new(65536, file).expect("LegacyPcapReader");
+  loop {
+    match reader.next() {
+      Ok((offset, block)) => {
+        println!("got new block");
+        num_blocks += 1;
+        match block {
+          PcapBlockOwned::LegacyHeader(_hdr) => {
+            // save hdr.network (linktype)
+          },
+          PcapBlockOwned::Legacy(_b) => {
+            // use linktype to parse b.data()
+          },
+          PcapBlockOwned::NG(_) => unreachable!(),
+        }
+        reader.consume(offset);
+      },
+      Err(PcapError::Eof) => break,
+      Err(PcapError::Incomplete) => {
+        reader.refill().unwrap();
+      },
+      Err(e) => panic!("error while reading: {:?}", e),
+    }
+  }
+  println!("num_blocks: {}", num_blocks);
+
+}
+pub fn new_format() {
   println!("Test");
 
   //let path = "anim.pcap";