package/network/services/hostapd/patches/381-hostapd_cli_UNKNOWN-COMMAND.patch

   1 From: Denton Gentry <denny@geekhold.com>
   2 Date: Wed, 30 May 2018 15:05:42 +0000
   3 Subject: [PATCH] hostapd: make cli treat UNKNOWN COMMAND as failing
   4
   5 Avoid infinite loop at 100% CPU when running hostapd_cli
   6 if CONFIG_CTRL_IFACE_MIB is not defined.
   7
   8   _newselect(4, [3], NULL, NULL, ...)
   9   recvfrom(3, "UNKNOWN COMMAND\n", 4095, 0, NULL, NULL) = 16
  10   sendto(3, "STA-NEXT UNKNOWN COMMAND", 24, 0, NULL, 0) = 24
  11
  12 --- a/hostapd/hostapd_cli.c
  13 +++ b/hostapd/hostapd_cli.c
  14 @@ -753,7 +753,7 @@ static int wpa_ctrl_command_sta(struct w
  15         }
  16
  17         buf[len] = '\0';
  18 -       if (memcmp(buf, "FAIL", 4) == 0)
  19 +       if (memcmp(buf, "FAIL", 4) == 0 || memcmp(buf, "UNKNOWN COMMAND", 15) == 0)
  20                 return -1;
  21         if (print)
  22                 printf("%s", buf);