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-rw-r--r--src/signal/sigisemptyset.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/signal/sigisemptyset.c b/src/signal/sigisemptyset.c
new file mode 100644
index 00000000..e2410514
--- /dev/null
+++ b/src/signal/sigisemptyset.c
@@ -0,0 +1,9 @@
+#define _GNU_SOURCE
+#include <signal.h>
+#include <string.h>
+
+int sigisemptyset(const sigset_t *set)
+{
+	static const sigset_t zeroset;
+	return !memcmp(set, &zeroset, 8);
+}