Replace Circular with Oval

Oval is a drop in replacement for ciruclar useful fixes merged.
Specificall it removes all occurences of unsound and unsafe behavior,
and so will allow for Miri testing.

Cargo.toml

@@ -41,7 +41,7 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-circular = "0.3"
+oval = "2.0"
 cookie-factory = { version="0.3.0", optional=true }
 nom = "7.0"
 rusticata-macros = "4.0"
@@ -53,5 +53,5 @@ hex-literal = "0.4"
 allowed_external_types = [
   "nom",
   "nom::*",
-  "circular::Buffer",
+  "oval::Buffer",
 ]

src/capture.rs

@@ -5,7 +5,7 @@ use crate::pcap::parse_pcap_header;
 use crate::pcapng::parse_sectionheaderblock;
 use crate::traits::PcapReaderIterator;
 use crate::{LegacyPcapReader, PcapNGReader};
-use circular::Buffer;
+use oval::Buffer;
 use nom::Needed;
 use std::io::Read;
 

src/pcap/reader.rs

@@ -5,7 +5,7 @@ use crate::pcap::{
     LegacyPcapBlock, PcapHeader,
 };
 use crate::traits::PcapReaderIterator;
-use circular::Buffer;
+use oval::Buffer;
 use nom::{IResult, Needed, Offset};
 use std::io::Read;
 

src/pcapng/reader.rs

@@ -2,7 +2,7 @@ use crate::blocks::PcapBlockOwned;
 use crate::error::PcapError;
 use crate::pcapng::*;
 use crate::traits::PcapReaderIterator;
-use circular::Buffer;
+use oval::Buffer;
 use nom::{Needed, Offset};
 use std::io::Read;