Use g_unix_signal_add instead of sigaction (#177)

Co-authored-by: Isak Jakobsson <isakj@axis.com>

Author: github-actions[bot]

app/dockerdwrapperwithcompose.c

@@ -24,6 +24,7 @@
 #include <arpa/inet.h>
 #include <axsdk/axparameter.h>
 #include <errno.h>
+#include <glib-unix.h>
 #include <glib.h>
 #include <mntent.h>
 #include <netdb.h>
@@ -176,28 +177,21 @@ static bool prevent_others_from_using_our_ipc_socket(void) {
  *
  * @param signal_num Signal number.
  */
-static void handle_signals(__attribute__((unused)) int signal_num) {
-    switch (signal_num) {
+static gboolean handle_signals(gpointer signal_num) {
+    switch (GPOINTER_TO_INT(signal_num)) {
         case SIGINT:
         case SIGTERM:
-        case SIGQUIT:
             quit_program(EX_OK);
     }
+    return G_SOURCE_REMOVE;
 }
 
 /**
  * @brief Initialize signals
  */
 static void init_signals(void) {
-    struct sigaction sa;
-
-    sa.sa_flags = 0;
-
-    sigemptyset(&sa.sa_mask);
-    sa.sa_handler = handle_signals;
-    sigaction(SIGINT, &sa, NULL);
-    sigaction(SIGTERM, &sa, NULL);
-    sigaction(SIGQUIT, &sa, NULL);
+    g_unix_signal_add(SIGINT, handle_signals, GINT_TO_POINTER(SIGINT));
+    g_unix_signal_add(SIGTERM, handle_signals, GINT_TO_POINTER(SIGTERM));
 }
 
 /**