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upstream: the GatewayPorts vs -R listen address selection logic is 

still confusing people, so add another comment explaining the special
handling of "localhost"; bz#3258

OpenBSD-Commit-ID: e6bf0f0fbf1c7092bf0dbd9c6eab105970b5b53a
This commit is contained in:
djm@openbsd.org 2020-01-25 06:40:20 +00:00 committed by Damien Miller
parent 734f2f83f5
commit 846446bf3e
1 changed files with 7 additions and 2 deletions
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9
channels.c
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@ -1,4 +1,4 @@
/* $OpenBSD: channels.c,v 1.394 2019/07/07 01:05:00 dtucker Exp $ */
/* $OpenBSD: channels.c,v 1.395 2020/01/25 06:40:20 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -3356,7 +3356,12 @@ channel_fwd_bind_addr(struct ssh *ssh, const char *listen_addr, int *wildcardp,
} else if (strcmp(listen_addr, "localhost") != 0 ||
strcmp(listen_addr, "127.0.0.1") == 0 ||
strcmp(listen_addr, "::1") == 0) {
/* Accept localhost address when GatewayPorts=yes */
/*
* Accept explicit localhost address when
* GatewayPorts=yes. The "localhost" hostname is
* deliberately skipped here so it will listen on all
* available local address families.
*/
addr = listen_addr;
}
} else if (strcmp(listen_addr, "127.0.0.1") == 0 ||