1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/lhash/lhash.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Code for dynamic hash table routines 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Author - Eric Young v 2.0 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2.2 eay - added #include "crypto.h" so the memory leak checking code is 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * present. eay 18-Jun-98 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2.1 eay - Added an 'error in last operation' flag. eay 6-May-98 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2.0 eay - Fixed a bug that occurred when using lh_delete 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * from inside lh_doall(). As entries were deleted, 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the 'table' was 'contract()ed', making some entries 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * jump from the end of the table to the start, there by 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * skipping the lh_doall() processing. eay - 4/12/95 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.9 eay - Fixed a memory leak in lh_free, the LHASH_NODEs 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * were not being free()ed. 21/11/95 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.8 eay - Put the stats routines into a separate file, lh_stats.c 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 19/09/95 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.7 eay - Removed the fputs() for realloc failures - the code 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * should silently tolerate them. I have also fixed things 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lint complained about 04/05/95 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.6 eay - Fixed an invalid pointers in contract/expand 27/07/92 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.5 eay - Fixed a misuse of realloc in expand 02/03/1992 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.4 eay - Fixed lh_doall so the function can call lh_delete 28/05/91 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.3 eay - Fixed a few lint problems 19/3/1991 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.2 eay - Fixed lh_doall problem 13/3/1991 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.1 eay - Added lh_doall 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1.0 eay - First version 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <string.h> 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdlib.h> 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/crypto.h> 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/lhash.h> 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectconst char lh_version[]="lhash" OPENSSL_VERSION_PTEXT; 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#undef MIN_NODES 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define MIN_NODES 16 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define UP_LOAD (2*LH_LOAD_MULT) /* load times 256 (default 2) */ 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DOWN_LOAD (LH_LOAD_MULT) /* load times 256 (default 1) */ 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 110221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void expand(_LHASH *lh); 111221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void contract(_LHASH *lh); 112221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic LHASH_NODE **getrn(_LHASH *lh, const void *data, unsigned long *rhash); 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 114221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom_LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c) 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 116221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom _LHASH *ret; 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 119221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((ret=OPENSSL_malloc(sizeof(_LHASH))) == NULL) 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err0; 121221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((ret->b=OPENSSL_malloc(sizeof(LHASH_NODE *)*MIN_NODES)) == NULL) 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err1; 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; i<MIN_NODES; i++) 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->b[i]=NULL; 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->comp=((c == NULL)?(LHASH_COMP_FN_TYPE)strcmp:c); 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->hash=((h == NULL)?(LHASH_HASH_FN_TYPE)lh_strhash:h); 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_nodes=MIN_NODES/2; 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_alloc_nodes=MIN_NODES; 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->p=0; 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->pmax=MIN_NODES/2; 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->up_load=UP_LOAD; 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->down_load=DOWN_LOAD; 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_items=0; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_expands=0; 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_expand_reallocs=0; 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_contracts=0; 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_contract_reallocs=0; 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_hash_calls=0; 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_comp_calls=0; 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_insert=0; 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_replace=0; 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_delete=0; 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_no_delete=0; 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_retrieve=0; 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_retrieve_miss=0; 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->num_hash_comps=0; 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->error=0; 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr1: 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(ret); 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr0: 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 157221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromvoid lh_free(_LHASH *lh) 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int i; 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE *n,*nn; 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (lh == NULL) 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return; 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; i<lh->num_nodes; i++) 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=lh->b[i]; 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (n != NULL) 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nn=n->next; 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(n); 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=nn; 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(lh->b); 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(lh); 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 179221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromvoid *lh_insert(_LHASH *lh, void *data) 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long hash; 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE *nn,**rn; 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project void *ret; 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->error=0; 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (lh->up_load <= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)) 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project expand(lh); 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rn=getrn(lh,data,&hash); 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (*rn == NULL) 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((nn=(LHASH_NODE *)OPENSSL_malloc(sizeof(LHASH_NODE))) == NULL) 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->error++; 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nn->data=data; 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nn->next=NULL; 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_HASH_COMP 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nn->hash=hash; 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *rn=nn; 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=NULL; 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_insert++; 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_items++; 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else /* replace same key */ 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= (*rn)->data; 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (*rn)->data=data; 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_replace++; 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 217221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromvoid *lh_delete(_LHASH *lh, const void *data) 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long hash; 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE *nn,**rn; 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project void *ret; 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->error=0; 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rn=getrn(lh,data,&hash); 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (*rn == NULL) 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_no_delete++; 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nn= *rn; 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *rn=nn->next; 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=nn->data; 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(nn); 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_delete++; 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_items--; 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((lh->num_nodes > MIN_NODES) && 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes))) 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project contract(lh); 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 248221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromvoid *lh_retrieve(_LHASH *lh, const void *data) 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long hash; 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE **rn; 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project void *ret; 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->error=0; 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project rn=getrn(lh,data,&hash); 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (*rn == NULL) 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_retrieve_miss++; 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= (*rn)->data; 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_retrieve++; 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 270221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void doall_util_fn(_LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func, 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_DOALL_ARG_FN_TYPE func_arg, void *arg) 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE *a,*n; 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 276221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (lh == NULL) 277221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return; 278221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* reverse the order so we search from 'top to bottom' 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * We were having memory leaks otherwise */ 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=lh->num_nodes-1; i>=0; i--) 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a=lh->b[i]; 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (a != NULL) 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* 28/05/91 - eay - n added so items can be deleted 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * via lh_doall */ 288221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* 22/05/08 - ben - eh? since a is not passed, 289221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom * this should not be needed */ 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=a->next; 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(use_arg) 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project func_arg(a->data,arg); 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project func(a->data); 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a=n; 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 300221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromvoid lh_doall(_LHASH *lh, LHASH_DOALL_FN_TYPE func) 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project doall_util_fn(lh, 0, func, (LHASH_DOALL_ARG_FN_TYPE)0, NULL); 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 305221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromvoid lh_doall_arg(_LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, void *arg) 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project doall_util_fn(lh, 1, (LHASH_DOALL_FN_TYPE)0, func, arg); 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 310221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void expand(_LHASH *lh) 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE **n,**n1,**n2,*np; 313221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom unsigned int p,i,j; 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long hash,nni; 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_nodes++; 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_expands++; 318221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom p=(int)lh->p++; 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n1= &(lh->b[p]); 320221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n2= &(lh->b[p+(int)lh->pmax]); 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *n2=NULL; /* 27/07/92 - eay - undefined pointer bug */ 322221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom nni=lh->num_alloc_nodes; 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (np= *n1; np != NULL; ) 325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_HASH_COMP 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project hash=np->hash; 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project hash=lh->hash(np->data); 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_hash_calls++; 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((hash%nni) != p) 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { /* move it */ 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *n1= (*n1)->next; 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project np->next= *n2; 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *n2=np; 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n1= &((*n1)->next); 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project np= *n1; 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 343221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if ((lh->p) >= lh->pmax) 344221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 345221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom j=(int)lh->num_alloc_nodes*2; 346221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n=(LHASH_NODE **)OPENSSL_realloc(lh->b, 347221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom (int)(sizeof(LHASH_NODE *)*j)); 348221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (n == NULL) 349221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 350221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/* fputs("realloc error in lhash",stderr); */ 351221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->error++; 352221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->p=0; 353221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return; 354221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 355221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom /* else */ 356221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom for (i=(int)lh->num_alloc_nodes; i<j; i++)/* 26/02/92 eay */ 357221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom n[i]=NULL; /* 02/03/92 eay */ 358221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->pmax=lh->num_alloc_nodes; 359221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->num_alloc_nodes=j; 360221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->num_expand_reallocs++; 361221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->p=0; 362221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->b=n; 363221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 366221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void contract(_LHASH *lh) 367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE **n,*n1,*np; 369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 370221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom np=lh->b[lh->p+lh->pmax-1]; 371221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom lh->b[lh->p+lh->pmax-1]=NULL; /* 24/07-92 - eay - weird but :-( */ 372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (lh->p == 0) 373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=(LHASH_NODE **)OPENSSL_realloc(lh->b, 375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int)(sizeof(LHASH_NODE *)*lh->pmax)); 376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n == NULL) 377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* fputs("realloc error in lhash",stderr); */ 379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->error++; 380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return; 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_contract_reallocs++; 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_alloc_nodes/=2; 384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->pmax/=2; 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->p=lh->pmax-1; 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->b=n; 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->p--; 390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_nodes--; 392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_contracts++; 393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n1=lh->b[(int)lh->p]; 395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n1 == NULL) 396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->b[(int)lh->p]=np; 397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (n1->next != NULL) 400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n1=n1->next; 401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n1->next=np; 402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 405221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic LHASH_NODE **getrn(_LHASH *lh, const void *data, unsigned long *rhash) 406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_NODE **ret,*n1; 408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long hash,nn; 409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project LHASH_COMP_FN_TYPE cf; 410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project hash=(*(lh->hash))(data); 412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_hash_calls++; 413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *rhash=hash; 414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nn=hash%lh->pmax; 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (nn < lh->p) 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nn=hash%lh->num_alloc_nodes; 418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cf=lh->comp; 420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= &(lh->b[(int)nn]); 421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (n1= *ret; n1 != NULL; n1=n1->next) 422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_HASH_COMP 424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_hash_comps++; 425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (n1->hash != hash) 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= &(n1->next); 428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project continue; 429656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 430656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 431656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lh->num_comp_calls++; 432656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(cf(n1->data,data) == 0) 433656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 434656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret= &(n1->next); 435656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 436656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 437656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 438656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 439656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* The following hash seems to work very well on normal text strings 440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * no collisions on /usr/dict/words and it distributes on %2^n quite 441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * well, not as good as MD5, but still good. 442656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 443656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectunsigned long lh_strhash(const char *c) 444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long ret=0; 446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long n; 447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long v; 448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int r; 449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((c == NULL) || (*c == '\0')) 451656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* 453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char b[16]; 454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project MD5(c,strlen(c),b); 455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(b[0]|(b[1]<<8)|(b[2]<<16)|(b[3]<<24)); 456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project*/ 457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=0x100; 459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (*c) 460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project v=n|(*c); 462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n+=0x100; 463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r= (int)((v>>2)^v)&0x0f; 464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=(ret<<r)|(ret>>(32-r)); 465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret&=0xFFFFFFFFL; 466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret^=v*v; 467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c++; 468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return((ret>>16)^ret); 470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 471656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 472221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromunsigned long lh_num_items(const _LHASH *lh) 473656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 474656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return lh ? lh->num_items : 0; 475656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 476