svn commit: r324658 - head/usr.sbin/wlandebug
Andriy Voskoboinyk
avos at FreeBSD.org
Mon Oct 16 07:15:52 UTC 2017
Author: avos
Date: Mon Oct 16 07:15:50 2017
New Revision: 324658
URL: https://svnweb.freebsd.org/changeset/base/324658
Log:
wlandebug(8): add a sanity check.
Modified:
head/usr.sbin/wlandebug/wlandebug.c
Modified: head/usr.sbin/wlandebug/wlandebug.c
==============================================================================
--- head/usr.sbin/wlandebug/wlandebug.c Mon Oct 16 07:01:27 2017 (r324657)
+++ head/usr.sbin/wlandebug/wlandebug.c Mon Oct 16 07:15:50 2017 (r324658)
@@ -172,6 +172,9 @@ get_orig_iface_name(char *oid, size_t oid_size, char *
if (ifconfig_get_orig_name(h, name, &orig_name) < 0)
errc(1, ifconfig_err_errno(h), "cannot get interface name");
+ if (strlen(orig_name) < strlen("wlan") + 1)
+ errx(1, "expecting a wlan interface name");
+
ifconfig_close(h);
setoid(oid, oid_size, orig_name);
free(orig_name);
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