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hostapd: make cli treat UNKNOWN COMMAND as failing 

Avoid infinite loop at 100% CPU when running hostapd_cli
if CONFIG_CTRL_IFACE_MIB is not defined.

  _newselect(4, [3], NULL, NULL, ...)
  recvfrom(3, "UNKNOWN COMMAND\n", 4095, 0, NULL, NULL) = 16
  sendto(3, "STA-NEXT UNKNOWN COMMAND", 24, 0, NULL, 0) = 24

Signed-off-by: Denton Gentry <denny@geekhold.com>
openwrt-19.07
Denton Gentry 2018-05-30 15:05:42 +00:00 committed by John Crispin
parent fb8a578aa7
commit a84962ea35
1 changed files with 13 additions and 0 deletions
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13
package/network/services/hostapd/patches/381-hostapd_cli_UNKNOWN-COMMAND.patch Normal file
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@ -0,0 +1,13 @@
--- a/hostapd/hostapd_cli.c
+++ b/hostapd/hostapd_cli.c
@@ -743,7 +743,7 @@ static int wpa_ctrl_command_sta(struct wpa_ctrl *ctrl, const char *cmd,
}
buf[len] = '\0';
- if (memcmp(buf, "FAIL", 4) == 0)
+ if (memcmp(buf, "FAIL", 4) == 0 || memcmp(buf, "UNKNOWN COMMAND", 15) == 0)
return -1;
if (print)
printf("%s", buf);
--
2.11.0