cmd_fmri.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <errno.h>
#include <strings.h>
#include <cmd_fmri.h>
#include <cmd.h>
void
cmd_fmri_init(fmd_hdl_t *hdl, cmd_fmri_t *fmri, nvlist_t *nvl,
const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
cmd_vbufname(fmri->fmri_packnm, sizeof (fmri->fmri_packnm), fmt, ap);
va_end(ap);
if ((errno = nvlist_dup(nvl, &fmri->fmri_nvl, 0)) != 0 ||
(errno = nvlist_size(nvl, &fmri->fmri_packsz,
NV_ENCODE_NATIVE)) != 0)
fmd_hdl_abort(hdl, "failed to copy fmri for fmri create");
fmri->fmri_packbuf = fmd_hdl_alloc(hdl, fmri->fmri_packsz, FMD_SLEEP);
if ((errno = nvlist_pack(nvl, &fmri->fmri_packbuf, &fmri->fmri_packsz,
NV_ENCODE_NATIVE, 0)) != 0)
fmd_hdl_abort(hdl, "failed to pack fmri for fmri create");
cmd_fmri_write(hdl, fmri);
}
void
cmd_fmri_fini(fmd_hdl_t *hdl, cmd_fmri_t *fmri, int destroy)
{
if (destroy)
fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
fmd_hdl_free(hdl, fmri->fmri_packbuf, fmri->fmri_packsz);
nvlist_free(fmri->fmri_nvl);
}
void
cmd_fmri_restore(fmd_hdl_t *hdl, cmd_fmri_t *fmri)
{
if (fmd_buf_size(hdl, NULL, fmri->fmri_packnm) == 0) {
bzero(fmri, sizeof (cmd_fmri_t));
return;
}
if ((fmri->fmri_packbuf = cmd_buf_read(hdl, NULL, fmri->fmri_packnm,
fmri->fmri_packsz)) == NULL) {
fmd_hdl_abort(hdl, "failed to read fmri buffer %s",
fmri->fmri_packnm);
}
if (nvlist_unpack(fmri->fmri_packbuf, fmri->fmri_packsz,
&fmri->fmri_nvl, 0) != 0) {
fmd_hdl_abort(hdl, "failed to unpack fmri buffer %s\n",
fmri->fmri_packnm);
}
}
void
cmd_fmri_write(fmd_hdl_t *hdl, cmd_fmri_t *fmri)
{
size_t sz;
if ((sz = fmd_buf_size(hdl, NULL, fmri->fmri_packnm)) !=
fmri->fmri_packsz && sz != 0)
fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
fmd_buf_write(hdl, NULL, fmri->fmri_packnm, fmri->fmri_packbuf,
fmri->fmri_packsz);
}