Modernize samples

ccouzens · Jun 17, 2020 · 3136969 · 3136969
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diff --git a/.gitignore b/.gitignore
@@ -1,3 +1,8 @@
 *.swp
 target
 tango.stamp
+
+
+#Added by cargo
+
+/target
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "dnsguide"
+version = "0.1.0"
+authors = ["Emil Hernvall <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/README.md b/README.md
@@ -24,3 +24,18 @@ DNS server, starting from first principles.
  * [Chapter 3 - Adding more Record Types](/chapter3.md)
  * [Chapter 4 - Baby's first DNS server](/chapter4.md)
  * [Chapter 5 - Recursive Resolve](/chapter5.md)
+
+Samples
+-------
+
+Each chapter has a corresponding sample which contains the full code up to
+that point in the guide, named `sample1.rs` through `sample5.rs`. These can be
+run using, for first chapter, `cargo run --example sample1`.
+
+Revision History
+----------------
+
+ * June 2020 - Fixed a security vulnerability in `read_qname` which allowed for
+ a malicious packet to trigger an infinite loop. Modernized the code to
+ conform to current rust pratices.
+ * July 2016 - Initial version