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From 21fbcf665a7ad6b761e9342d116657d5c2353592 Mon Sep 17 00:00:00 2001
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From: Frediano Ziglio <freddy77@gmail.com>
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Date: Mon, 21 Sep 2020 07:00:39 +0100
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Subject: [PATCH vd_agent_linux 06/17] vdagentd: Automatically release
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"agent_data"
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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It's not guaranteed that agent_disconnect will release the connection
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so avoid to have a dandling pointer.
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Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
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Acked-by: Jakub Janků <jjanku@redhat.com>
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---
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src/vdagentd/vdagentd.c | 17 ++++++++++-------
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1 file changed, 10 insertions(+), 7 deletions(-)
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diff --git a/src/vdagentd/vdagentd.c b/src/vdagentd/vdagentd.c
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index 051de74..94b8681 100644
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--- a/src/vdagentd/vdagentd.c
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+++ b/src/vdagentd/vdagentd.c
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@@ -86,6 +86,13 @@ static uint32_t clipboard_serial[256];
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static GMainLoop *loop;
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+static void agent_data_destroy(struct agent_data *agent_data)
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+{
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+ g_free(agent_data->session);
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+ g_free(agent_data->screen_info);
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+ g_free(agent_data);
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+}
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+
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static void vdagentd_quit(gint exit_code)
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{
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retval = exit_code;
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@@ -930,7 +937,7 @@ static void agent_connect(UdscsConnection *conn)
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syslog(LOG_ERR, "Could not get peer PID, disconnecting new client: %s",
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err->message);
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g_error_free(err);
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- g_free(agent_data);
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+ agent_data_destroy(agent_data);
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udscs_server_destroy_connection(server, conn);
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return;
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}
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@@ -938,7 +945,8 @@ static void agent_connect(UdscsConnection *conn)
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agent_data->session = session_info_session_for_pid(session_info, pid);
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}
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- g_object_set_data(G_OBJECT(conn), "agent_data", agent_data);
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+ g_object_set_data_full(G_OBJECT(conn), "agent_data", agent_data,
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+ (GDestroyNotify) agent_data_destroy);
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udscs_write(conn, VDAGENTD_VERSION, 0, 0,
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(uint8_t *)VERSION, strlen(VERSION) + 1);
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update_active_session_connection(conn);
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@@ -951,13 +959,8 @@ static void agent_connect(UdscsConnection *conn)
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static void agent_disconnect(VDAgentConnection *conn, GError *err)
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{
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- struct agent_data *agent_data = g_object_get_data(G_OBJECT(conn), "agent_data");
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-
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g_hash_table_foreach_remove(active_xfers, remove_active_xfers, conn);
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- g_clear_pointer(&agent_data->session, g_free);
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- g_free(agent_data->screen_info);
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- g_free(agent_data);
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if (err) {
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syslog(LOG_ERR, "%s", err->message);
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g_error_free(err);
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--
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2.26.2
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