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ndb/dnstcp: -x specifies the mountmoint

--- a/sys/src/cmd/ndb/dnstcp.c

+++ b/sys/src/cmd/ndb/dnstcp.c

@@ -68,9 +68,6 @@

 		break;

 	}ARGEND

-	if(debug < 2)

-		debug = 0;

-

 	if(argc > 0)

 		getcaller(argv[0]);

@@ -77,7 +74,11 @@

 	cfg.inside = 1;

 	dninit();

-	snprint(mntpt, sizeof mntpt, "/net%s", ext);

+	if(*ext == '/')

+		snprint(mntpt, sizeof mntpt, "%s", ext);

+	else

+		snprint(mntpt, sizeof mntpt, "/net%s", ext);

+

 	if(myipaddr(ipaddr, mntpt) < 0)

 		sysfatal("can't read my ip address");

 	dnslog("dnstcp call from %s to %I", caller, ipaddr);