fix compiler warnings (unused vars)

cdr.c

@@ -406,7 +406,7 @@ int cdr_create_cdrs(med_entry_t *records, u_int64_t count,
 	u_int32_t invites = 0;
 	size_t cdr_size;
 
-	char *endtime = NULL, *tmp_endtime = NULL;
+	char *endtime = NULL;
 	double unix_endtime = 0, tmp_unix_endtime = 0;
 	char *call_status;
 
@@ -465,12 +465,10 @@ int cdr_create_cdrs(med_entry_t *records, u_int64_t count,
 			if(strncmp("200", e->sip_code, 3))
 			{
 				/* missed calls have duration of 0 */
-				tmp_endtime = e->timestamp;
 				tmp_unix_endtime = e->unix_timestamp;
 			}
 			else
 			{
-				tmp_endtime = endtime;
 				tmp_unix_endtime = unix_endtime;
 			}
 	

daemonizer.c

@@ -19,7 +19,6 @@ int daemonize()
 	else if(pid == 0)
 	{
 		int fds;
-		int tmp;
 		setsid();
 		for(fds = getdtablesize(); fds >= 0; --fds) 
 		{
@@ -27,10 +26,10 @@ int daemonize()
 				close(fds);
 		}
 		fds = open("/dev/null", O_RDWR); /* stdin */
-		tmp = dup(fds); /* stdout */
-		tmp = dup(fds); /* stderr */
+		dup(fds); /* stdout */
+		dup(fds); /* stderr */
 		umask(027);
-		tmp = chdir("/");
+		chdir("/");
 	}
 
 	return 0;

mediator.c

@@ -284,7 +284,6 @@ out:
 
 
 void critical(const char *msg) {
-	int ret;
-	ret = write(mediator_lockfd, msg, strlen(msg));
-	ret = write(mediator_lockfd, "\n", 1);
+	write(mediator_lockfd, msg, strlen(msg));
+	write(mediator_lockfd, "\n", 1);
 }