12 files changed, 56 insertions, 16 deletions
diff --git a/src/headermap.rs b/src/encoding/headermap.rs
index 8712df1..313d8b5 100644
--- a/src/headermap.rs
+++ b/src/encoding/headermap.rs
@@ -1,7 +1,8 @@
-use crate::headers::Header;
+use super::headers::Header;
 use anyhow::Result;
 use std::fmt::Display;
 
+#[derive(Debug)]
 pub struct HeaderMap(pub Vec<(String, String)>);
 
 impl HeaderMap {
@@ -18,6 +19,9 @@ impl HeaderMap {
             .find(|(k, _)| k == H::NAME)
             .map(|(_, v)| H::from_str(v))
     }
+    pub fn insert_raw(&mut self, key: String, value: String) {
+        self.0.push((key, value))
+    }
 }
 
 impl Display for HeaderMap {
diff --git a/src/headers.rs b/src/encoding/headers.rs
index d837ee5..d837ee5 100644
--- a/src/headers.rs
+++ b/src/encoding/headers.rs
diff --git a/src/method.rs b/src/encoding/method.rs
index 5f8110a..5f8110a 100644
--- a/src/method.rs
+++ b/src/encoding/method.rs
diff --git a/src/encoding/mod.rs b/src/encoding/mod.rs
new file mode 100644
index 0000000..a7dd227
--- /dev/null
+++ b/src/encoding/mod.rs
@@ -0,0 +1,7 @@
+pub mod headermap;
+pub mod headers;
+pub mod method;
+pub mod request;
+pub mod response;
+pub mod status;
+pub mod uri;
diff --git a/src/request.rs b/src/encoding/request.rs
index 827dae1..03b93c9 100644
--- a/src/request.rs
+++ b/src/encoding/request.rs
@@ -1,4 +1,4 @@
-use crate::{headermap::HeaderMap, method::Method, uri::Uri};
+use super::{headermap::HeaderMap, method::Method, uri::Uri};
 use std::fmt::Display;
 
 pub struct Request {
diff --git a/src/encoding/response.rs b/src/encoding/response.rs
new file mode 100644
index 0000000..3564b34
--- /dev/null
+++ b/src/encoding/response.rs
@@ -0,0 +1,40 @@
+use super::headermap::HeaderMap;
+use anyhow::{anyhow, bail, Context};
+use std::str::FromStr;
+
+#[derive(Debug)]
+pub struct Response {
+    pub code: u16,
+    pub headers: HeaderMap,
+}
+
+impl FromStr for Response {
+    type Err = anyhow::Error;
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let mut lines = s.lines();
+        let statusline = lines.next().ok_or(anyhow!("status line missing"))?;
+        let (sipver, rest) = statusline
+            .split_once(" ")
+            .ok_or(anyhow!("status line malformed"))?;
+        let (code, _status_str) = rest
+            .split_once(" ")
+            .ok_or(anyhow!("status line malformed"))?;
+        let code = u16::from_str(code).context("status code")?;
+
+        let Some(ver) = sipver.strip_prefix("SIP/") else {
+            bail!("sip version malformed");
+        };
+        if ver != "2.0" {
+            bail!("sip version {ver:?} is not supported");
+        }
+
+        let mut headers = HeaderMap::new();
+        for line in lines {
+            // TODO multiline values
+            let (key, value) = line.split_once(":").ok_or(anyhow!("header malformed"))?;
+            headers.insert_raw(key.trim().to_string(), value.trim().to_string())
+        }
+
+        Ok(Self { code, headers })
+    }
+}
diff --git a/src/status.rs b/src/encoding/status.rs
index de9ea88..de9ea88 100644
--- a/src/status.rs
+++ b/src/encoding/status.rs
diff --git a/src/uri.rs b/src/encoding/uri.rs
index 2d77df2..2d77df2 100644
--- a/src/uri.rs
+++ b/src/encoding/uri.rs
diff --git a/src/lib.rs b/src/lib.rs
index a7dd227..d9935d3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,2 @@
-pub mod headermap;
-pub mod headers;
-pub mod method;
-pub mod request;
-pub mod response;
-pub mod status;
-pub mod uri;
+pub mod encoding;
+pub mod transport;
diff --git a/src/response.rs b/src/response.rs
deleted file mode 100644
index 4403c6e..0000000
--- a/src/response.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-use crate::headermap::HeaderMap;
-
-
-pub struct Reponse {
-    pub code: u16,
-    pub headers: HeaderMap,
-}
diff --git a/src/transport/client.rs b/src/transport/client.rs
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/transport/client.rs
diff --git a/src/transport/mod.rs b/src/transport/mod.rs
new file mode 100644
index 0000000..b9babe5
--- /dev/null
+++ b/src/transport/mod.rs
@@ -0,0 +1 @@
+pub mod client;