flterm: add check if c is 0x00

Xiangfu Liu · Sebastien Bourdeauducq · commit 3ccb7ef59732 · 2011-08-26T12:07:32.000+02:00
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);
 			}
 

Original file line number	Diff line number	Diff line change
`@@ -493,8 +493,8 @@ static void do_terminal(char *serial_port,`
`493`	`493`	`if(fds[1].revents & POLLIN) {`
`494`	`494`	`if(read(serialfd, &c, 1) <= 0) break;`
`495`	`495`
`496`		`- if(logfd != NULL) {`
`497`		`- if(isascii(c)) fwrite(&c, sizeof(c), 1, logfd);`
	`496`	`+ if(logfd && c && isascii(c)) {`
	`497`	`+ fwrite(&c, sizeof(c), 1, logfd);`
`498`	`498`	`if(c == '\n') fflush(logfd);`
`499`	`499`	`}`
`500`	`500`