sigme: playground for signals

Program to play with signal manipulation

Signed-off-by: Carlos Maiolino <[email protected]>

1 files changed, 36 insertions, 0 deletions

diff --git a/C/HF/sigme.c b/C/HF/sigme.c
new file mode 100644
index 0000000..b1d5fb6
--- /dev/null
+++ b/C/HF/sigme.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+
+typedef void (*sig_handler) (int);
+void
+kill_me(int s) {
+	puts("\n\nGoodbye cruel world...\n");
+	exit(99);
+}
+
+int
+change_signal(int sig, sig_handler handler) {
+	struct sigaction action = {
+		.sa_handler = handler,
+		.sa_flags = 0,
+	};
+
+	sigemptyset(&action.sa_mask);
+	return sigaction(sig, &action, NULL);
+}
+
+int
+main(void) {
+	char name[30];
+
+	if (change_signal(SIGINT, kill_me) < 0) {
+		fprintf(stderr, "Couldn't change SIGINT action\n");
+		exit(1);
+	}
+
+	printf("Enter your name: ");
+	fgets(name, 30, stdin);
+	printf("Hello %s\n", name);
+	return 0;
+}