add missing test program (oops)
ADD
test/test-unsigaction.c
+#include <signal.h> /* sigemptyset(), sigaction(), kill(), SIGUSR1 */
+#include <stdlib.h> /* exit() */
+#include <unistd.h> /* getpid() */
+#include <errno.h> /* errno */
+#include <stdio.h> /* fprintf() */
+
+static void mysig_handler(int sig)
+{
+ exit(2);
+}
+
+int main()
+{
+ /* setup sig handler */
+ struct sigaction sa;
+ sa.sa_handler = mysig_handler;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0;
+ if (sigaction(SIGCHLD, &sa, NULL)) {
+ fprintf(stderr, "could not set signal handler %d, aborted\n", errno);
+ exit(1);
+ }
+ kill(getpid(), SIGCHLD);
+ return 0;
+}

add missing test program (oops)