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Support "ssh-keygen -lF hostname" to find search known_hosts
 and print key hashes. Already advertised by ssh-keygen(1), but not delivered
 by code; ok dtucker@

Upstream-ID: 459e0e2bf39825e41b0811c336db2d56a1c23387
This commit is contained in:
djm@openbsd.org 2015-05-21 12:01:19 +00:00 committed by Damien Miller
parent e97201feca
commit 4739e8d5e1
1 changed files with 17 additions and 3 deletions
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20
ssh-keygen.c
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@ -1,4 +1,4 @@
/* $OpenBSD: ssh-keygen.c,v 1.271 2015/04/27 01:52:30 djm Exp $ */
/* $OpenBSD: ssh-keygen.c,v 1.272 2015/05/21 12:01:19 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -1078,6 +1078,12 @@ static int
known_hosts_find_delete(struct hostkey_foreach_line *l, void *_ctx)
{
struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx;
enum sshkey_fp_rep rep;
int fptype;
char *fp;
fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash;
rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT;
if (l->status == HKF_STATUS_MATCHED) {
if (delete_host) {
@ -1106,7 +1112,12 @@ known_hosts_find_delete(struct hostkey_foreach_line *l, void *_ctx)
}
if (hash_hosts)
known_hosts_hash(l, ctx);
else
else if (print_fingerprint) {
fp = sshkey_fingerprint(l->key, fptype, rep);
printf("%s %s %s %s\n", ctx->host,
sshkey_type(l->key), fp, l->comment);
free(fp);
} else
fprintf(ctx->out, "%s\n", l->line);
return 0;
}
@ -1127,6 +1138,7 @@ do_known_hosts(struct passwd *pw, const char *name)
char *cp, tmp[PATH_MAX], old[PATH_MAX];
int r, fd, oerrno, inplace = 0;
struct known_hosts_ctx ctx;
u_int foreach_options;
if (!have_identity) {
cp = tilde_expand_filename(_PATH_SSH_USER_HOSTFILE, pw->pw_uid);
@ -1163,9 +1175,11 @@ do_known_hosts(struct passwd *pw, const char *name)
}
/* XXX support identity_file == "-" for stdin */
foreach_options = find_host ? HKF_WANT_MATCH : 0;
foreach_options |= print_fingerprint ? HKF_WANT_PARSE_KEY : 0;
if ((r = hostkeys_foreach(identity_file,
hash_hosts ? known_hosts_hash : known_hosts_find_delete, &ctx,
name, NULL, find_host ? HKF_WANT_MATCH : 0)) != 0)
name, NULL, foreach_options)) != 0)
fatal("%s: hostkeys_foreach failed: %s", __func__, ssh_err(r));
if (inplace)