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/*
* DIS/x : An implementation of the IEEE 1278.1 protocol
*
* Copyright (C) 1996, Riley Rainey (rainey@netcom.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of either:
*
* a) the GNU Library General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your
* option) any later version. A description of the terms and conditions
* of the GLPL may be found in the "COPYING.LIB" file.
*
* b) the "Artistic License" which comes with this Kit. Information
* about this license may be found in the "Artistic" file.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License or the Artistic License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Information describing how to contact the author can be found in the
* README file.
*/
#ifdef HAVE_NDBM
#include <gdbm-ndbm.h>
#else
#include <sdbm.h>
#endif
#include <dis/dis.h>
#include <sys/file.h>
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include <string.h>
#include <memory.h>
#include <stdio.h>
DBM *entities;
int
OpenDatabase ()
{
entities = dbm_open ("dis-entities", O_RDONLY, 0644);
if (!entities) {
entities = dbm_open ("../data/dis-entities", O_RDONLY, 0644);
if (!entities) {
fprintf (stderr, "Unable to open dis-entities database\n");
fprintf (stderr, "Perhaps simxd was run from the wrong directory\n");
exit (1);
}
}
return 0;
}
int
FetchEntity (dis_entity_type *id, char *s, int size)
{
datum key, value;
int i;
key.dptr = (char *) id;
key.dsize = sizeof (dis_entity_type);
value = dbm_fetch (entities, key);
if (value.dptr) {
memcpy (s, value.dptr, size);
-- size;
i = value.dsize > size ? size : value.dsize;
s[i] = '\0';
return 0;
}
return -1;
}
/*
* Under construction.
*/
int
FindEntity (char * pattern, dis_entity_type * match,
char * s, int size)
{
datum key, value;
char *p;
int len;
static char *pat;
if (pattern) {
key = dbm_firstkey (entities);
if (pat) {
free (pat);
}
pat = strdup (pattern);
}
else {
key = dbm_nextkey (entities);
}
len = strlen(pat);
for ( ; key.dptr ; key = dbm_nextkey(entities)) {
value = dbm_fetch (entities, key);
if ((p = strchr (value.dptr, *pattern)) != NULL) {
if (strncasecmp (p, pattern, len) == 0) {
memcpy (key.dptr, match,
sizeof (dis_entity_type));
strncpy (s, value.dptr, size);
return 1;
}
}
}
*s = '\0';
return 0;
}
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