fix broken ttyname[_r] (failure to null-terminate result)

fcfba995 · Rich Felker · fb247faf · fcfba995
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Showing with 4 addition and 1 deletion

src/unistd/ttyname_r.c src/unistd/ttyname_r.c +4 -1

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--- a/src/unistd/ttyname_r.c
+++ b/src/unistd/ttyname_r.c
@@ -15,5 +15,8 @@ int ttyname_r(int fd, char *name, size_t size)

 	if (l < 0) return errno;
 	else if (l == size) return ERANGE;
-	else return 0;
+	else {
+		name[l] = 0;
+		return 0;
+	}
 }