- Fix terminating argument to execl(3), sizeof(NULL) != sizeof(char *)

might be true on some systems [1]
- Rewrite gotos to use return directly
- Some spelling fixes
- Reduce unneeded/non-standard Makefile settings

Requested by:			bde, imp [1]
Explanation provided by:	bde [1]
Reviewed by:			imp

usr.sbin/apmd/Makefile

@@ -10,12 +10,7 @@ WARNS?=	3
 DPADD=	${LIBL}
 LDADD=	-ll
 
-YFLAGS+=-v
-CFLAGS+=-I. -I${.CURDIR} #-DYY_STACK_USED
-# for debug:
-#CFLAGS+= -g -DDEBUG
-
-CLEANFILES= y.output
+CFLAGS+= -I${.CURDIR}
 
 test:
 	./apmd -d -f etc/apmd.conf -n

usr.sbin/apmd/README

@@ -92,7 +92,7 @@ apm_event SUSPENDREQ {
 	exec "zzz";
 }
 
-Will cause apmd to recieve the APM event SUSPENDREQ (which may be
+Will cause apmd to receive the APM event SUSPENDREQ (which may be
 posted by an LCD close), run the sync command 3 times and wait for a
 while, then execute zzz (apm -z) to put the system in the suspend
 state.
@@ -130,7 +130,7 @@ Other events will not be sent to apmd.
 4.3 command line syntax
 -----------------------
 
-In the example above, the three lines begining with `exec' are commands 
+In the example above, the three lines beginning with `exec' are commands
 for the event.  Each line should be terminated with a semicolon.  The
 command list for the event should be enclosed by `{' and `}'. apmd(8)
 uses /bin/sh for double-quotation enclosed command execution, just as

usr.sbin/apmd/apmd.c

@@ -115,13 +115,13 @@ event_cmd_exec_act(void *this)
 	switch ((pid = fork())) {
 	case -1:
 		warn("cannot fork");
-		goto out;
+		break;
 	case 0:
 		/* child process */
 		signal(SIGHUP, SIG_DFL);
 		signal(SIGCHLD, SIG_DFL);
 		signal(SIGTERM, SIG_DFL);
-		execl(_PATH_BSHELL, "sh", "-c", p->line, NULL);
+		execl(_PATH_BSHELL, "sh", "-c", p->line, (char *)NULL);
 		_exit(127);
 	default:
 		/* parent process */
@@ -130,7 +130,6 @@ event_cmd_exec_act(void *this)
 		} while (pid == -1 && errno == EINTR);
 		break;
 	}
- out:
 	return status;
 }
 void
@@ -165,19 +164,17 @@ struct event_cmd_op event_cmd_exec_ops = {
 };
 
 /*
- * reject commad
+ * reject command
  */
 int
 event_cmd_reject_act(void *this __unused)
 {
-	int rc = -1;
+	int rc = 0;
 
 	if (ioctl(apmctl_fd, APMIO_REJECTLASTREQ, NULL)) {
 		syslog(LOG_NOTICE, "fail to reject\n");
-		goto out;
+		rc = -1;
 	}
-	rc = 0;
- out:
 	return rc;
 }
 struct event_cmd_op event_cmd_reject_ops = {
@@ -466,7 +463,7 @@ wait_child(void)
 int
 proc_signal(int fd)
 {
-	int rc = -1;
+	int rc = 0;
 	int sig;
 
 	while (read(fd, &sig, sizeof sig) == sizeof sig) {
@@ -479,7 +476,7 @@ proc_signal(int fd)
 		case SIGTERM:
 			syslog(LOG_NOTICE, "going down on signal %d", sig);
 			rc = -1;
-			goto out;
+			return rc;
 		case SIGCHLD:
 			wait_child();
 			break;
@@ -488,8 +485,6 @@ proc_signal(int fd)
 			break;
 		}
 	}
-	rc = 0;
- out:
 	return rc;
 }
 void
@@ -630,14 +625,12 @@ event_loop(void)
 
 		if (FD_ISSET(signal_fd[0], &rfds)) {
 			if (proc_signal(signal_fd[0]) < 0)
-				goto out;
+				return;
 		}
 
 		if (FD_ISSET(apmctl_fd, &rfds))
 			proc_apmevent(apmctl_fd);
 	}
-out:
-	return;
 }
 
 int