init

sigcat.h

@@ -0,0 +1,41 @@
+#ifndef SIGCAT_H
+#define SIGCAT_H
+#include <csse2310a3.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define SIGMIN 1
+#define SIGMAX 31
+
+// Holds the current output stream
+FILE *outputStream;
+
+/* setup_default_handlers()
+ * ------------------------
+ * Sets up handlers for signals 1-31 excluding 9, 19, 10 and 12
+ */
+void setup_default_handlers(void);
+
+/* default_signal_handler()
+ * ------------------------
+ * The default handler for signals, prints to the current output_stream
+ * For example: sigcat recieved Hangup
+ *
+ * s: the signal number
+ */
+void default_signal_handler(int s);
+
+/* usr_signal_handler()
+ * ------------------------
+ * The USR handler for signals, changes the output_stream based on the signal
+ * recieved. SIGUSR1 sets the output_stream to stdout and SIGUSR2 sets the
+ * output_stream to stderr
+ *
+ * s: the signal number
+ */
+void usr_signal_handler(int s);
+
+#endif