Signals exampe, sigaction included

signals/main_sigaction.c

@@ -0,0 +1,23 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+void handler(int sig) {
+    write(1, "Caught SIGINT\n", 14); // Async-signal-safe output
+    exit(1);
+}
+
+int main() {
+    struct sigaction sa;
+    sa.sa_handler = handler;
+    sigemptyset(&sa.sa_mask);
+    sa.sa_flags = 0;
+
+    sigaction(SIGINT, &sa, NULL);
+
+    while (1) {
+        printf("Running...\n");
+        sleep(1);
+    }
+}