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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2000 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libelf.h>
#include "_crle.h"
Hash_tbl *
make_hash(int size, Hash_type type, ulong_t ident)
{
Hash_tbl * tbl;
if ((tbl = malloc(sizeof (Hash_tbl))) == 0)
return (0);
if ((tbl->t_entry = calloc((unsigned)(sizeof (Hash_ent *)), size)) == 0)
return (0);
tbl->t_ident = ident;
tbl->t_type = type;
tbl->t_size = size;
return (tbl);
}
Hash_ent *
get_hash(Hash_tbl * tbl, Addr key, Half id, int mode)
{
int bucket;
Hash_ent * ent;
Word hashval;
if (tbl->t_type == HASH_STR)
hashval = elf_hash((const char *)key);
else
hashval = key;
bucket = hashval % tbl->t_size;
if (mode & HASH_FND_ENT) {
for (ent = tbl->t_entry[bucket]; ent != NULL;
ent = ent->e_next) {
if (tbl->t_type == HASH_STR) {
if ((strcmp((const char *)ent->e_key,
(const char *)key) == 0) && ((id == 0) ||
(id == ent->e_id)))
return (ent);
} else {
if (ent->e_key == key)
return (ent);
}
}
}
if (!(mode & HASH_ADD_ENT))
return (0);
/*
* Key not found in this hash table ... insert new entry into bucket.
*/
if ((ent = calloc(sizeof (Hash_ent), 1)) == 0)
return (0);
ent->e_key = key;
ent->e_hash = hashval;
/*
* Hook into bucket chain
*/
ent->e_next = tbl->t_entry[bucket];
tbl->t_entry[bucket] = ent;
return (ent);
}
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