freebsd-dev/cmd/zstream/zstream_token.c
tony-zfs 02fced3067
Add support to decode a resume token
Adding a new subcommand to zstream called token. This
now allows users to decode a resume token to retrieve the toname
field. This can be useful for tools that need this information.
The syntax works as follows zstream token <resume_token>.

Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Paul Zuchowski <pzuchowski@datto.com>
Signed-off-by: Tony Perkins <tperkins@datto.com>
Closes #10558
2020-07-23 17:44:03 -07:00

79 lines
1.9 KiB
C

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Portions Copyright 2012 Martin Matuska <martin@matuska.org>
*/
/*
* Copyright (c) 2020 by Datto Inc. All rights reserved.
*/
#include <ctype.h>
#include <libnvpair.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <stddef.h>
#include <libzfs.h>
#include <libzfs_core.h>
#include <sys/dmu.h>
#include <sys/zfs_ioctl.h>
#include "zstream.h"
int
zstream_do_token(int argc, char *argv[])
{
char *resume_token = NULL;
if (argc < 2) {
(void) fprintf(stderr, "Need to pass the resume token\n");
zstream_usage();
}
resume_token = argv[1];
libzfs_handle_t *hdl = libzfs_init();
nvlist_t *resume_nvl =
zfs_send_resume_token_to_nvlist(hdl, resume_token);
if (resume_nvl == NULL) {
(void) fprintf(stderr,
"Unable to parse resume token: %s\n",
libzfs_error_description(hdl));
libzfs_fini(hdl);
return (1);
}
dump_nvlist(resume_nvl, 5);
nvlist_free(resume_nvl);
libzfs_fini(hdl);
return (0);
}