usr/src/lib/sun_sas/common/Sun_sasGetAdapterName.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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #include    "sun_sas.h"
  28
  29 /*
  30  * Returns the text string which describes this adapter and which is used to
  31  * open the adapter with the library.
  32  *
  33  * Arguments:
  34  *          index       the index to which adapter to retrive the name
  35  *          name        buffer to which the adapter name will be placed
  36  */
  37 HBA_STATUS Sun_sasGetAdapterName(HBA_UINT32 index, char *name) {
  38         const char              ROUTINE[] = "Sun_sasGetAdapterName";
  39         struct sun_sas_hba      *hba_ptr;
  40
  41         if (name == NULL) {
  42             log(LOG_DEBUG, ROUTINE, "NULL adapter name");
  43             return (HBA_STATUS_ERROR_ARG);
  44         }
  45         lock(&all_hbas_lock);
  46         for (hba_ptr = global_hba_head; hba_ptr != NULL;
  47                 hba_ptr = hba_ptr->next) {
  48             if (hba_ptr->index == index) {
  49                     if (hba_ptr->handle_name == NULL) {
  50                         hba_ptr = NULL;
  51                         break;
  52                     }
  53                     /* Flaw in the spec!  How do we know the size of name? */
  54                     (void) strlcpy(name, hba_ptr->handle_name,
  55                         strlen(hba_ptr->handle_name)+1);
  56                     break;
  57             }
  58         }
  59         unlock(&all_hbas_lock);
  60         if (hba_ptr == NULL) {
  61             log(LOG_DEBUG, ROUTINE,
  62                 "Unable to find adapter index %d.", index);
  63             return (HBA_STATUS_ERROR_ILLEGAL_INDEX);
  64         }
  65
  66         return (HBA_STATUS_OK);
  67 }