/* -*-c-*-
*
- * $Id: util.c,v 1.1 2001/02/03 20:26:37 mdw Exp $
+ * $Id: util.c,v 1.3 2004/04/08 01:36:17 mdw Exp $
*
* Utilities for the client and the server
*
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: util.c,v $
- * Revision 1.1 2001/02/03 20:26:37 mdw
- * Initial checkin.
- *
- */
-
/*----- Header files ------------------------------------------------------*/
#include <errno.h>
/*----- Main code ---------------------------------------------------------*/
-/* --- @u_daemon@ --- *
+/* --- @u_detach@ --- *
*
* Arguments: ---
*
- * Returns: Zero if OK, nonzero on failure.
+ * Returns: ---
*
- * Use: Becomes a daemon.
+ * Use: Detaches from the current terminal and ensures it can never
+ * acquire a new one. Calls @fork@.
*/
-int u_daemon(void)
+void u_detach(void)
{
- pid_t kid;
-
- if ((kid = fork()) < 0)
- return (-1);
- if (kid)
- _exit(0);
#ifdef TIOCNOTTY
{
int fd;
}
#endif
setsid();
-
if (fork() > 0)
_exit(0);
+}
+
+/* --- @u_daemon@ --- *
+ *
+ * Arguments: ---
+ *
+ * Returns: Zero if OK, nonzero on failure.
+ *
+ * Use: Becomes a daemon.
+ */
+
+int u_daemon(void)
+{
+ pid_t kid;
+
+ if ((kid = fork()) < 0)
+ return (-1);
+ if (kid)
+ _exit(0);
+ u_detach();
return (0);
}