When a service is started with "/etc/init.d/<service> trace" or when
it has seccomp enabled (i.e. runs under seccomp-trace), stopping the
service with "/etc/init.d/<service> stop" stops only the tracer. The
service itself continue executing. This patch ensures that the service
is terminated as well.
Signed-off-by: Michal Sojka <sojk...@fel.cvut.cz>
---
trace/trace.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/trace/trace.c b/trace/trace.c
index eead9c5..d86c215 100644
--- a/trace/trace.c
+++ b/trace/trace.c
@@ -254,6 +254,15 @@ static void tracer_cb(struct uloop_process *c, int ret)
uloop_process_add(c);
}
+static void sigterm_handler(int signum)
+{
+ /* When we receive SIGTERM, we forward it to the tracee. After
+ * the tracee exits, trace_cb() will be called and make us
+ * exit too. */
+ kill(tracer.proc.pid, SIGTERM);
+}
+
+
int main(int argc, char **argv, char **envp)
{
int status, ch, policy = EPERM;
@@ -361,6 +370,7 @@ int main(int argc, char **argv, char **envp)
tracer.proc.pid = child;
tracer.proc.cb = tracer_cb;
uloop_process_add(&tracer.proc);
+ signal(SIGTERM, sigterm_handler); /* Override uloop's SIGTERM handler */
uloop_run();
uloop_done();
--
2.14.1
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