tree-wide: whenever we fork off a foreign child process reset signal mask/handlers

Also, when the child is potentially long-running make sure to set a
death signal.

Also, ignore the result of the reset operations explicitly by casting
them to (void).

1 files changed, 6 insertions, 0 deletions

diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index b3d90d2c33..5075e4e176 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -5189,6 +5189,9 @@ static int enable_sysv_units(const char *verb, char **args) {
                 else if (pid == 0) {
                         /* Child */
 
+                        (void) reset_all_signal_handlers();
+                        (void) reset_signal_mask();
+
                         execv(argv[0], (char**) argv);
                         log_error("Failed to execute %s: %m", argv[0]);
                         _exit(EXIT_FAILURE);
@@ -5854,6 +5857,9 @@ static int run_editor(char **paths) {
                 unsigned i = 1;
                 size_t argc;
 
+                (void) reset_all_signal_handlers();
+                (void) reset_signal_mask();
+
                 argc = strv_length(paths)/2 + 1;
                 args = newa(const char*, argc + 1);