Check for xrdp being terminated during SSL_accept BIO loop

common/ssl_calls.c

@@ -1026,7 +1026,8 @@ log_encrypted_file_unsupported(char *buf, int size, int rwflag, void *u)
 
 int
 ssl_tls_accept(struct ssl_tls *self, long ssl_protocols,
-               const char *tls_ciphers)
+               const char *tls_ciphers,
+               int (*is_term)(void))
 {
     int connection_status;
     long options = 0;
@@ -1213,6 +1214,11 @@ ssl_tls_accept(struct ssl_tls *self, long ssl_protocols,
                     g_sck_can_send(self->trans->sck, SSL_WANT_READ_WRITE_TIMEOUT);
                     break;
             }
+
+            if (is_term != NULL && (*is_term)())
+            {
+                return 1;
+            }
         }
         else
         {

common/ssl_calls.h

@@ -90,7 +90,8 @@ struct ssl_tls *
 ssl_tls_create(struct trans *trans, const char *key, const char *cert);
 int
 ssl_tls_accept(struct ssl_tls *self, long ssl_protocols,
-               const char *tls_ciphers);
+               const char *tls_ciphers,
+               int (*is_term)(void));
 int
 ssl_tls_disconnect(struct ssl_tls *self);
 void

common/trans.c

@@ -1053,7 +1053,8 @@ trans_set_tls_mode(struct trans *self, const char *key, const char *cert,
         return 1;
     }
 
-    if (ssl_tls_accept(self->tls, ssl_protocols, tls_ciphers) != 0)
+    if (ssl_tls_accept(self->tls, ssl_protocols,
+                       tls_ciphers, self->is_term) != 0)
     {
         LOG(LOG_LEVEL_ERROR, "trans_set_tls_mode: ssl_tls_accept failed");
         return 1;

xrdp/xrdp_listen.c

@@ -674,6 +674,7 @@ xrdp_listen_init(struct xrdp_listen *self)
         }
         ltrans->trans_conn_in = xrdp_listen_conn_in;
         ltrans->callback_data = self;
+        ltrans->is_term = g_is_term;
         list_add_item(self->trans_list, (intptr_t) ltrans);
     }
     return 0;