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authorDamien Miller <djm@mindrot.org>2009-02-14 16:28:21 +1100
committerDamien Miller <djm@mindrot.org>2009-02-14 16:28:21 +1100
commit4bf648f7766ba764d7a78b1dbb26df4f0d42a8c9 (patch)
treecc576e28218cb3ad9617a12eabe68c21a7e09614 /readconf.c
parentfdd66fc750228b5d040c45bc36565299374b72c8 (diff)
downloadopenssh-git-4bf648f7766ba764d7a78b1dbb26df4f0d42a8c9.tar.gz
- djm@cvs.openbsd.org 2009/02/12 03:00:56
[canohost.c canohost.h channels.c channels.h clientloop.c readconf.c] [readconf.h serverloop.c ssh.c] support remote port forwarding with a zero listen port (-R0:...) to dyamically allocate a listen port at runtime (this is actually specified in rfc4254); bz#1003 ok markus@
Diffstat (limited to 'readconf.c')
-rw-r--r--readconf.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/readconf.c b/readconf.c
index 0a8be140..53fc6c7b 100644
--- a/readconf.c
+++ b/readconf.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: readconf.c,v 1.175 2009/01/22 10:02:34 djm Exp $ */
+/* $OpenBSD: readconf.c,v 1.176 2009/02/12 03:00:56 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -735,7 +735,8 @@ parse_int:
}
if (parse_forward(&fwd, fwdarg,
- opcode == oDynamicForward ? 1 : 0) == 0)
+ opcode == oDynamicForward ? 1 : 0,
+ opcode == oRemoteForward ? 1 : 0) == 0)
fatal("%.200s line %d: Bad forwarding specification.",
filename, linenum);
@@ -1220,7 +1221,7 @@ fill_default_options(Options * options)
* returns number of arguments parsed or zero on error
*/
int
-parse_forward(Forward *fwd, const char *fwdspec, int dynamicfwd)
+parse_forward(Forward *fwd, const char *fwdspec, int dynamicfwd, int remotefwd)
{
int i;
char *p, *cp, *fwdarg[4];
@@ -1283,12 +1284,16 @@ parse_forward(Forward *fwd, const char *fwdspec, int dynamicfwd)
goto fail_free;
}
- if (fwd->listen_port <= 0)
+ if (fwd->listen_port < 0 || (!remotefwd && fwd->listen_port == 0))
goto fail_free;
if (fwd->connect_host != NULL &&
strlen(fwd->connect_host) >= NI_MAXHOST)
goto fail_free;
+ if (fwd->listen_host != NULL &&
+ strlen(fwd->listen_host) >= NI_MAXHOST)
+ goto fail_free;
+
return (i);