usr/src/cmd/fm/modules/sun4/cpumem-diagnosis/cmd_fmri.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <errno.h>
  30 #include <strings.h>
  31
  32 #include <cmd_fmri.h>
  33 #include <cmd.h>
  34
  35 void
  36 cmd_fmri_init(fmd_hdl_t *hdl, cmd_fmri_t *fmri, nvlist_t *nvl,
  37     const char *fmt, ...)
  38 {
  39         va_list ap;
  40
  41         va_start(ap, fmt);
  42         cmd_vbufname(fmri->fmri_packnm, sizeof (fmri->fmri_packnm), fmt, ap);
  43         va_end(ap);
  44
  45         if ((errno = nvlist_dup(nvl, &fmri->fmri_nvl, 0)) != 0 ||
  46             (errno = nvlist_size(nvl, &fmri->fmri_packsz,
  47             NV_ENCODE_NATIVE)) != 0)
  48                 fmd_hdl_abort(hdl, "failed to copy fmri for fmri create");
  49
  50         fmri->fmri_packbuf = fmd_hdl_alloc(hdl, fmri->fmri_packsz, FMD_SLEEP);
  51
  52         if ((errno = nvlist_pack(nvl, &fmri->fmri_packbuf, &fmri->fmri_packsz,
  53             NV_ENCODE_NATIVE, 0)) != 0)
  54                 fmd_hdl_abort(hdl, "failed to pack fmri for fmri create");
  55
  56         cmd_fmri_write(hdl, fmri);
  57 }
  58
  59 void
  60 cmd_fmri_fini(fmd_hdl_t *hdl, cmd_fmri_t *fmri, int destroy)
  61 {
  62         if (destroy)
  63                 fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
  64
  65         fmd_hdl_free(hdl, fmri->fmri_packbuf, fmri->fmri_packsz);
  66         nvlist_free(fmri->fmri_nvl);
  67 }
  68
  69 void
  70 cmd_fmri_restore(fmd_hdl_t *hdl, cmd_fmri_t *fmri)
  71 {
  72         if (fmd_buf_size(hdl, NULL, fmri->fmri_packnm) == 0) {
  73                 bzero(fmri, sizeof (cmd_fmri_t));
  74                 return;
  75         }
  76
  77         if ((fmri->fmri_packbuf = cmd_buf_read(hdl, NULL, fmri->fmri_packnm,
  78             fmri->fmri_packsz)) == NULL) {
  79                 fmd_hdl_abort(hdl, "failed to read fmri buffer %s",
  80                     fmri->fmri_packnm);
  81         }
  82
  83         if (nvlist_unpack(fmri->fmri_packbuf, fmri->fmri_packsz,
  84             &fmri->fmri_nvl, 0) != 0) {
  85                 fmd_hdl_abort(hdl, "failed to unpack fmri buffer %s\n",
  86                     fmri->fmri_packnm);
  87         }
  88 }
  89
  90 void
  91 cmd_fmri_write(fmd_hdl_t *hdl, cmd_fmri_t *fmri)
  92 {
  93         size_t sz;
  94
  95         if ((sz = fmd_buf_size(hdl, NULL, fmri->fmri_packnm)) !=
  96             fmri->fmri_packsz && sz != 0)
  97                 fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
  98
  99         fmd_buf_write(hdl, NULL, fmri->fmri_packnm, fmri->fmri_packbuf,
 100             fmri->fmri_packsz);
 101 }