usr/src/lib/smbsrv/libsmb/common/smb_status_tbl.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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25
  26 /*
  27  * This file provides a text translation service for NT status codes.
  28  */
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32
  33 /*
  34  * Include the generated file with ntx_table[]
  35  * See smb_status_gen.awk
  36  */
  37 #include "smb_status_tbl.h"
  38 static const int ntx_rows = sizeof (ntx_table) / sizeof (ntx_table[0]);
  39
  40 /*
  41  * Comparison function for bsearch(3C).
  42  */
  43 static int
  44 xlate_compare(const void *vkey, const void *vrow)
  45 {
  46         const smb_status_table_t *key = vkey;
  47         const smb_status_table_t *row = vrow;
  48
  49         if (key->value == row->value)
  50                 return (0);
  51         if (key->value < row->value)
  52                 return (-1);
  53         return (1);
  54 }
  55
  56 /*
  57  * Translate an ntstatus value to a meaningful text string. If there isn't
  58  * a corresponding text string in the table, the text representation of the
  59  * status value is returned. This uses a static buffer so there is a
  60  * possible concurrency issue if the caller hangs on to this pointer for a
  61  * while but it should be harmless and really remote since the value will
  62  * almost always be found in the table.
  63  */
  64 const char *
  65 xlate_nt_status(unsigned int ntstatus)
  66 {
  67         static char unknown[16];
  68         smb_status_table_t key;
  69         const smb_status_table_t *tep;
  70
  71         key.value = ntstatus;
  72         key.name = NULL;
  73         tep = bsearch(&key, ntx_table, ntx_rows,
  74             sizeof (*tep), xlate_compare);
  75
  76         if (tep != NULL)
  77                 return (tep->name);
  78
  79         (void) sprintf(unknown, "0x%08X", ntstatus);
  80         return ((const char *)unknown);
  81 }