[openssh-commits] [openssh] 03/03: upstream: support ProxyJump=none to disable ProxyJump

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djm pushed a commit to branch master
in repository openssh.

commit 4b22fd8ecefd059a66140be67f352eb6145a9d88
Author: djm at openbsd.org <djm at openbsd.org>
Date:   Tue May 22 00:13:26 2018 +0000

    upstream: support ProxyJump=none to disable ProxyJump
    
    functionality; bz#2869 ok dtucker@
    
    OpenBSD-Commit-ID: 1c06ee08eb78451b5837fcfd8cbebc5ff3a67a01
---
 readconf.c | 31 ++++++++++++++++++++++---------
 1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/readconf.c b/readconf.c
index 5a1055bc..7b7a0d7e 100644
--- a/readconf.c
+++ b/readconf.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: readconf.c,v 1.286 2018/04/06 13:02:39 djm Exp $ */
+/* $OpenBSD: readconf.c,v 1.287 2018/05/22 00:13:26 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo at cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo at cs.hut.fi>, Espoo, Finland
@@ -2072,6 +2072,12 @@ fill_default_options(Options * options)
 	CLEAR_ON_NONE(options->proxy_command);
 	CLEAR_ON_NONE(options->control_path);
 	CLEAR_ON_NONE(options->revoked_host_keys);
+	if (options->jump_host != NULL &&
+	    strcmp(options->jump_host, "none") == 0 &&
+	    options->jump_port == 0 && options->jump_user == NULL) {
+		free(options->jump_host);
+		options->jump_host = NULL;
+	}
 	/* options->identity_agent distinguishes NULL from 'none' */
 	/* options->user will be set in the main program if appropriate */
 	/* options->hostname will be set in the main program if appropriate */
@@ -2300,6 +2306,8 @@ parse_jump(const char *s, Options *o, int active)
 	orig = sdup = xstrdup(s);
 	first = active;
 	do {
+		if (strcasecmp(s, "none") == 0)
+			break;
 		if ((cp = strrchr(sdup, ',')) == NULL)
 			cp = sdup; /* last */
 		else
@@ -2320,14 +2328,19 @@ parse_jump(const char *s, Options *o, int active)
 	} while (cp != sdup);
 	/* success */
 	if (active) {
-		o->jump_user = user;
-		o->jump_host = host;
-		o->jump_port = port;
-		o->proxy_command = xstrdup("none");
-		user = host = NULL;
-		if ((cp = strrchr(s, ',')) != NULL && cp != s) {
-			o->jump_extra = xstrdup(s);
-			o->jump_extra[cp - s] = '\0';
+		if (strcasecmp(s, "none") == 0) {
+			o->jump_host = xstrdup("none");
+			o->jump_port = 0;
+		} else {
+			o->jump_user = user;
+			o->jump_host = host;
+			o->jump_port = port;
+			o->proxy_command = xstrdup("none");
+			user = host = NULL;
+			if ((cp = strrchr(s, ',')) != NULL && cp != s) {
+				o->jump_extra = xstrdup(s);
+				o->jump_extra[cp - s] = '\0';
+			}
 		}
 	}
 	ret = 0;

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