lib-smtp: server: Protect smpt_server_connection_start() from being called multiple...

diff --git a/src/lib-smtp/smtp-server-connection.c b/src/lib-smtp/smtp-server-connection.c
index 57cd8b547c4d8010e739c79ac9993d35921ead6a..8e565b0099f6df2ee8721d4c031425ca04a76343 100644 (file)
--- 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
index 37a1edc64b597c0495008498cbbd66c09d23b7d3..ff96a2a2754d4444733b64f7f609be46dad8efb1 100644 (file)
--- 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;