[PATCH 1/4] restorecond: switch terminate to sig_atomic_t for async-signal-safety

The terminate flag is written from a signal handler so switch it to
volatile sig_atomic_t for async-signal-safety.

Signed-off-by: Stephen Smalley <[email protected]>
---
 restorecond/restorecond.c | 2 +-
 restorecond/restorecond.h | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/restorecond/restorecond.c b/restorecond/restorecond.c
index b8ca4b21..0e973d83 100644
--- a/restorecond/restorecond.c
+++ b/restorecond/restorecond.c
@@ -73,7 +73,7 @@ struct restore_opts r_opts;
 #include <selinux/selinux.h>
 
 int debug_mode = 0;
-int terminate = 0;
+volatile sig_atomic_t terminate = 0;
 int master_wd = -1;
 int run_as_user = 0;
 int foreground_mode = 0;
diff --git a/restorecond/restorecond.h b/restorecond/restorecond.h
index 9fb5c5d5..7e209226 100644
--- a/restorecond/restorecond.h
+++ b/restorecond/restorecond.h
@@ -24,9 +24,11 @@
 #ifndef RESTORED_CONFIG_H
 #define RESTORED_CONFIG_H
 
+#include <signal.h>
+
 extern int debug_mode;
 extern const char *homedir;
-extern int terminate;
+extern volatile sig_atomic_t terminate;
 extern int master_wd;
 extern int run_as_user;
 
-- 
2.55.0