(EmptyTerminal): check that fds are not too large to select on

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@9105 ec53bebd-3082-4978-b11e-865c3cabbd6b
2000-10-08 13:30:59 +00:00
parent 4fa6a49208
commit 4b3c422399
1 changed files with 3 additions and 0 deletions
--- a/appl/telnet/telnet/utilities.c
+++ b/appl/telnet/telnet/utilities.c
@@ -817,6 +817,9 @@ EmptyTerminal(void)

    FD_ZERO(&outs);

+    if (tout >= FD_SETSIZE)
+	fatal (, "fd too large");
+
    if (TTYBYTES() == 0) {
 	FD_SET(tout, &outs);
 	select(tout+1, 0, &outs, 0,