lib-smtp: server: Protect smpt_server_connection_start() from being c…

…alled multiple times.
dovecot · Feb 9, 2018 · 2dc83a5 · 2dc83a5
1 parent 67c8041
commit 2dc83a5
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 0 deletions.
diff --git a/src/lib-smtp/smtp-server-connection.c b/src/lib-smtp/smtp-server-connection.c
@@ -1145,6 +1145,9 @@ void smtp_server_connection_login(struct smtp_server_connection *conn,
 
 void smtp_server_connection_start(struct smtp_server_connection *conn)
 {
+	i_assert(!conn->started);
+	conn->started = TRUE;
+
 	conn->raw_input = conn->conn.input;
 	conn->raw_output = conn->conn.output;
 

diff --git a/src/lib-smtp/smtp-server-private.h b/src/lib-smtp/smtp-server-private.h
@@ -149,6 +149,7 @@ struct smtp_server_connection {
 
 	struct smtp_server_stats stats;
 
+	bool started:1;
 	bool ssl_start:1;
 	bool ssl_secured:1;
 	bool authenticated:1;