From bd278c9d514c2d087fe39228b4c1bb1c6083eb40 Mon Sep 17 00:00:00 2001
From: Richard Whitehouse <github@richardwhiuk.com>
Date: Sat, 4 Nov 2017 18:24:10 +0000
Subject: [PATCH] Support User-Agent header

---
 src/codec.rs  | 2 +-
 src/parser.rs | 9 ++++++++-
 src/types.rs  | 1 +
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/codec.rs b/src/codec.rs
index a4b2cf3..e832b9c 100644
--- a/src/codec.rs
+++ b/src/codec.rs
@@ -448,7 +448,7 @@ mod tests {
                            atlanta.com;lr>\r\nServer:rust-sip \
                            tokio\r\nSubject:Foobaz\r\nSupported:rec\r\nTimestamp:1 \
                            2\r\nTo:<sip:operator@cs.columbia.edu>;tag=287447\r\nUnsupported:\
-                           100rel\r\nVia: localhost\r\n\r\n")
+                           100rel\r\nUser-Agent:rust-sip\r\nVia: localhost\r\n\r\n")
         });
 
         let finished = request.and_then(|(socket, _request)| {
diff --git a/src/parser.rs b/src/parser.rs
index c5e6ac9..86f3cd5 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -1152,6 +1152,12 @@ named!(unsupported_header<Vec<OptionTag>>, preceded!(
 		tag!(b","),
 		token)));
 
+named!(user_agent_header<Vec<Server>>, preceded!(
+	tag!(b"User-Agent:"),
+	separated_nonempty_list!(
+		tag!(b" "),
+		server)));
+
 named!(pub header<Header>, alt!(
 // RFC 3261 Headers
 	accept_header => { |a| Header::Accept(a) } |
@@ -1193,5 +1199,6 @@ named!(pub header<Header>, alt!(
 	supported_header => { |s| Header::Supported(s) } |
 	timestamp_header => { |t| Header::Timestamp(t) } |
 	to_header => { |t| Header::To(t) } |
-	unsupported_header => { |u| Header::Unsupported(u) }
+	unsupported_header => { |u| Header::Unsupported(u) } |
+	user_agent_header => { |u| Header::UserAgent(u) }
 ));
diff --git a/src/types.rs b/src/types.rs
index 766242f..78c00ff 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -439,5 +439,6 @@ pub enum Header {
     Timestamp(Vec<f32>),
     To(To),
     Unsupported(Vec<OptionTag>),
+    UserAgent(Vec<Server>),
     Extension { name: String, value: String },
 }
-- 
2.34.1