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-rw-r--r--networking/telnetd.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/networking/telnetd.c b/networking/telnetd.c
index bd60c8681..e94d3bd3d 100644
--- a/networking/telnetd.c
+++ b/networking/telnetd.c
@@ -278,9 +278,14 @@ safe_write_to_pty_decode_iac(struct tsession *ts)
goto update_and_return;
}
if (buf[1] == AYT) {
- /* Send back evidence that AYT was seen. */
- buf[1] = NOP;
- /*rc =*/ safe_write(ts->sockfd_write, buf, 2);
+ if (ts->size2 == 0) { /* if nothing buffered yet... */
+ /* Send back evidence that AYT was seen */
+ unsigned char *buf2 = TS_BUF2(ts);
+ buf2[0] = IAC;
+ buf2[1] = NOP;
+ ts->wridx2 = 0;
+ ts->rdidx2 = ts->size2 = 2;
+ }
rc = 2;
goto update_and_return;
}