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upstream: Handle dynamic remote port forwarding in escape commandline's

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-R processing. bz#3499, ok djm@

OpenBSD-Commit-ID: 194ee4cfe7ed0e2b8ad0727f493c798a50454208
This commit is contained in:
dtucker@openbsd.org 2022-11-10 23:03:10 +00:00 committed by Darren Tucker
parent 5372db7e79
commit 650de7ecd3
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1 changed files with 10 additions and 3 deletions
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13
clientloop.c
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@ -1,4 +1,4 @@
/* $OpenBSD: clientloop.c,v 1.381 2022/11/09 01:37:44 djm Exp $ */
/* $OpenBSD: clientloop.c,v 1.382 2022/11/10 23:03:10 dtucker Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -846,8 +846,15 @@ process_cmdline(struct ssh *ssh)
}
logit("Canceled forwarding.");
} else {
if (!parse_forward(&fwd, s, dynamic, remote)) {
logit("Bad forwarding specification.");
/* -R specs can be both dynamic or not, so check both. */
if (remote) {
if (!parse_forward(&fwd, s, 0, remote) &&
!parse_forward(&fwd, s, 1, remote)) {
logit("Bad remote forwarding specification.");
goto out;
}
} else if (!parse_forward(&fwd, s, dynamic, remote)) {
logit("Bad local forwarding specification.");
goto out;
}
if (local || dynamic) {