1 /*
2  * Copyright (c) 2005-2017 National Technology & Engineering Solutions
3  * of Sandia, LLC (NTESS).  Under the terms of Contract DE-NA0003525 with
4  * NTESS, the U.S. Government retains certain rights in this software.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met:
9  *
10  *     * Redistributions of source code must retain the above copyright
11  *       notice, this list of conditions and the following disclaimer.
12  *
13  *     * Redistributions in binary form must reproduce the above
14  *       copyright notice, this list of conditions and the following
15  *       disclaimer in the documentation and/or other materials provided
16  *       with the distribution.
17  *
18  *     * Neither the name of NTESS nor the names of its
19  *       contributors may be used to endorse or promote products derived
20  *       from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  *
34  */
35 /*****************************************************************************
36  *
37  * exgnam - ex_get_name
38  *
39  * entry conditions -
40  *   input parameters:
41  *       int     exoid          exodus file id
42  *       const char *type       entity type - M, E, S
43  *       int     entity_id      id of entity name to read
44  *
45  * exit conditions -
46  *       char*   name           ptr to name
47  *
48  * revision history -
49  *
50  *
51  *****************************************************************************/
52 
53 #include "exodusII.h"     // for ex_inquire_int, etc
54 #include "exodusII_int.h" // for EX_FATAL, etc
55 #include "vtk_netcdf.h"       // for NC_NOERR, nc_inq_varid
56 #include <stdio.h>
57 
58 /*
59  * reads the specified entity name from the database
60  */
61 
ex_get_name(int exoid,ex_entity_type obj_type,ex_entity_id entity_id,char * name)62 int ex_get_name(int exoid, ex_entity_type obj_type, ex_entity_id entity_id, char *name)
63 {
64   int   status;
65   int   varid, ent_ndx;
66   char  errmsg[MAX_ERR_LENGTH];
67   char *vobj = NULL;
68 
69   EX_FUNC_ENTER();
70   ex_check_valid_file_id(exoid, __func__);
71 
72   switch (obj_type) {
73   case EX_ELEM_BLOCK: vobj = VAR_NAME_EL_BLK; break;
74   case EX_EDGE_BLOCK: vobj = VAR_NAME_ED_BLK; break;
75   case EX_FACE_BLOCK: vobj = VAR_NAME_FA_BLK; break;
76   case EX_NODE_SET: vobj = VAR_NAME_NS; break;
77   case EX_SIDE_SET: vobj = VAR_NAME_SS; break;
78   case EX_EDGE_SET: vobj = VAR_NAME_ES; break;
79   case EX_FACE_SET: vobj = VAR_NAME_FS; break;
80   case EX_ELEM_SET: vobj = VAR_NAME_ELS; break;
81   case EX_NODE_MAP: vobj = VAR_NAME_NM; break;
82   case EX_EDGE_MAP: vobj = VAR_NAME_EDM; break;
83   case EX_FACE_MAP: vobj = VAR_NAME_FAM; break;
84   case EX_ELEM_MAP: vobj = VAR_NAME_EM; break;
85   default:
86     /* invalid variable type */
87     snprintf(errmsg, MAX_ERR_LENGTH, "ERROR: Invalid type specified in file id %d", exoid);
88     ex_err(__func__, errmsg, EX_BADPARAM);
89     EX_FUNC_LEAVE(EX_FATAL);
90   }
91 
92   if ((status = nc_inq_varid(exoid, vobj, &varid)) == NC_NOERR) {
93     /* If this is a null entity, then 'ent_ndx' will be negative.
94      * We don't care in this __func__, so make it positive and continue...
95      */
96     ent_ndx = ex_id_lkup(exoid, obj_type, entity_id);
97     if (ent_ndx < 0) {
98       ent_ndx = -ent_ndx;
99     }
100 
101     /* read the name */
102     {
103       int db_name_size  = ex_inquire_int(exoid, EX_INQ_DB_MAX_ALLOWED_NAME_LENGTH);
104       int api_name_size = ex_inquire_int(exoid, EX_INQ_MAX_READ_NAME_LENGTH);
105       int name_size     = db_name_size < api_name_size ? db_name_size : api_name_size;
106 
107       status = ex_get_name_internal(exoid, varid, ent_ndx - 1, name, name_size, obj_type, __func__);
108       if (status != NC_NOERR) {
109         EX_FUNC_LEAVE(EX_FATAL);
110       }
111     }
112   }
113   else {
114     /* Name variable does not exist on the database; probably since this is an
115      * older version of the database.  Return an empty array...
116      */
117     name[0] = '\0';
118   }
119   EX_FUNC_LEAVE(EX_NOERR);
120 }
121