flterm: add check if c is 0x00

m-labs · Aug 26, 2011 · 3ccb7ef · 3ccb7ef
1 parent 9aa4a60
commit 3ccb7ef
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/tools/flterm.c b/tools/flterm.c
@@ -493,8 +493,8 @@ static void do_terminal(char *serial_port,
 		if(fds[1].revents & POLLIN) {
 			if(read(serialfd, &c, 1) <= 0) break;
 
-			if(logfd != NULL) {
-				if(isascii(c)) fwrite(&c, sizeof(c), 1, logfd);
+			if(logfd && c && isascii(c)) {
+				fwrite(&c, sizeof(c), 1, logfd);
 				if(c == '\n') fflush(logfd);
 			}