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From: Denton Gentry <denny@geekhold.com>
Date: Wed, 30 May 2018 15:05:42 +0000
Subject: [PATCH] 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
--- a/hostapd/hostapd_cli.c
+++ b/hostapd/hostapd_cli.c
@@ -753,7 +753,7 @@ static int wpa_ctrl_command_sta(struct w
}
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);
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