merge XOPEN identifiers

1 files changed, 21 insertions, 0 deletions

diff --git a/src/signal/bsd_signal.c b/src/signal/bsd_signal.c
new file mode 100644
index 00000000..148029c0
--- /dev/null
+++ b/src/signal/bsd_signal.c
@@ -0,0 +1,21 @@
+#include <signal.h>
+
+void (*bsd_signal(int sig, void (*func)(int)))(int)
+{
+	struct sigaction act, oact;
+	act.sa_handler = func;
+	act.sa_flags = SA_RESTART;
+
+	sigemptyset(&act.sa_mask);
+	sigaddset(&act.sa_mask, sig);
+
+	if (sigaction(sig, &act, &oact) == -1) {
+		return SIG_ERR;
+	}
+
+	return oact.sa_handler;
+}
+
+/*
+XOPEN(400,700)
+*/