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upstream: Add "ssh -Q sig" to allow listing supported signature 

algorithms ok markus@

OpenBSD-Commit-ID: 7a8c6eb6c249dc37823ba5081fce64876d10fe2b
This commit is contained in:
djm@openbsd.org 2018-09-12 01:30:10 +00:00 committed by Damien Miller
parent 9405c6214f
commit 357128ac48
2 changed files with 19 additions and 6 deletions
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14
ssh.1
View File

@ -33,8 +33,8 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $OpenBSD: ssh.1,v 1.397 2018/09/07 01:42:54 djm Exp $
.Dd $Mdocdate: September 7 2018 $
.\" $OpenBSD: ssh.1,v 1.398 2018/09/12 01:30:10 djm Exp $
.Dd $Mdocdate: September 12 2018 $
.Dt SSH 1
.Os
.Sh NAME
@ -559,6 +559,10 @@ The available features are:
(supported symmetric ciphers),
.Ar cipher-auth
(supported symmetric ciphers that support authenticated encryption),
.Ar help
(supported query terms for use with the
.Fl Q
flag),
.Ar mac
(supported message integrity codes),
.Ar kex
@ -568,9 +572,11 @@ The available features are:
.Ar key-cert
(certificate key types),
.Ar key-plain
(non-certificate key types), and
(non-certificate key types),
.Ar protocol-version
(supported SSH protocol versions).
(supported SSH protocol versions), and
.Ar sig
(supported signature algorithms).
.Pp
.It Fl q
Quiet mode.

11
ssh.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: ssh.c,v 1.490 2018/07/27 05:34:42 dtucker Exp $ */
/* $OpenBSD: ssh.c,v 1.491 2018/09/12 01:30:10 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -739,8 +739,15 @@ main(int ac, char **av)
cp = sshkey_alg_list(1, 0, 0, '\n');
else if (strcmp(optarg, "key-plain") == 0)
cp = sshkey_alg_list(0, 1, 0, '\n');
else if (strcmp(optarg, "protocol-version") == 0) {
else if (strcmp(optarg, "sig") == 0)
cp = sshkey_alg_list(0, 0, 1, '\n');
else if (strcmp(optarg, "protocol-version") == 0)
cp = xstrdup("2");
else if (strcmp(optarg, "help") == 0) {
cp = xstrdup(
"cipher\ncipher-auth\nkex\nkey\n"
"key-cert\nkey-plain\nmac\n"
"protocol-version\nsig");
}
if (cp == NULL)
fatal("Unsupported query \"%s\"", optarg);