X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Fsys-linux.c;h=099db535357fb8211928fd545143a4e2d68e1476;hb=31b9087e92f1d0ecf87dc05c2ff4704be7b19870;hp=bf6db3285a81a9a6cebe728476e600ea71dee3f7;hpb=f53a48eb9d74db3c71938e114b7f489c339bc003;p=ppp.git

diff --git a/pppd/sys-linux.c b/pppd/sys-linux.c
index bf6db32..099db53 100644
--- a/pppd/sys-linux.c
+++ b/pppd/sys-linux.c
@@ -485,6 +485,7 @@ int generic_establish_ppp (int fd)
 	    error("Couldn't reopen /dev/ppp: %m");
 	    goto err;
 	}
+	(void) fcntl(fd, F_SETFD, FD_CLOEXEC);
 	if (ioctl(fd, PPPIOCATTCHAN, &chindex) < 0) {
 	    error("Couldn't attach to channel %d: %m", chindex);
 	    goto err_close;
@@ -1050,6 +1051,8 @@ void wait_input(struct timeval *timo)
  */
 void add_fd(int fd)
 {
+    if (fd >= FD_SETSIZE)
+	fatal("internal error: file descriptor too large (%d)", fd);
     FD_SET(fd, &in_fds);
     if (fd > max_in_fd)
 	max_in_fd = fd;