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-rw-r--r--src/basic/signal-util.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/src/basic/signal-util.h b/src/basic/signal-util.h
index 72b10e8712..dfd6eb564d 100644
--- a/src/basic/signal-util.h
+++ b/src/basic/signal-util.h
@@ -44,9 +44,13 @@ static inline void block_signals_reset(sigset_t *ss) {
assert_se(sigprocmask(SIG_SETMASK, ss, NULL) >= 0);
}
-#define BLOCK_SIGNALS(...) \
- _cleanup_(block_signals_reset) sigset_t _saved_sigset = ({ \
- sigset_t t; \
+#define BLOCK_SIGNALS(...) \
+ _cleanup_(block_signals_reset) _unused_ sigset_t _saved_sigset = ({ \
+ sigset_t t; \
assert_se(sigprocmask_many(SIG_BLOCK, &t, __VA_ARGS__, -1) >= 0); \
- t; \
+ t; \
})
+
+static inline bool SIGNAL_VALID(int signo) {
+ return signo > 0 && signo < _NSIG;
+}