/* * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved. * * The contents of this file constitute Original Code as defined in and are * subject to the Apple Public Source License Version 1.2 (the 'License'). * You may not use this file except in compliance with the License. Please obtain * a copy of the License at http://www.apple.com/publicsource and read it before * using this file. * * This Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the * specific language governing rights and limitations under the License. */ /* crypto/ex_data.c */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #include <stdio.h> #include <stdlib.h> #include <openssl/buffer.h> #include <openssl/bio.h> #include <openssl/lhash.h> #include "cryptlib.h" int CRYPTO_get_ex_new_index(int idx, STACK_OF(CRYPTO_EX_DATA_FUNCS) **skp, long argl, void *argp, CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) { int ret= -1; CRYPTO_EX_DATA_FUNCS *a; MemCheck_off(); if (*skp == NULL) *skp=sk_CRYPTO_EX_DATA_FUNCS_new_null(); if (*skp == NULL) { CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE); goto err; } a=(CRYPTO_EX_DATA_FUNCS *)Malloc(sizeof(CRYPTO_EX_DATA_FUNCS)); if (a == NULL) { CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE); goto err; } a->argl=argl; a->argp=argp; a->new_func=new_func; a->dup_func=dup_func; a->free_func=free_func; while (sk_CRYPTO_EX_DATA_FUNCS_num(*skp) <= idx) { if (!sk_CRYPTO_EX_DATA_FUNCS_push(*skp,NULL)) { CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE); Free(a); goto err; } } sk_CRYPTO_EX_DATA_FUNCS_set(*skp,idx, a); ret=idx; err: MemCheck_on(); return(idx); } int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val) { int i; if (ad->sk == NULL) { if ((ad->sk=sk_new_null()) == NULL) { CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE); return(0); } } i=sk_num(ad->sk); while (i <= idx) { if (!sk_push(ad->sk,NULL)) { CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE); return(0); } i++; } sk_set(ad->sk,idx,val); return(1); } void *CRYPTO_get_ex_data(CRYPTO_EX_DATA *ad, int idx) { if (ad->sk == NULL) return(0); else if (idx >= sk_num(ad->sk)) return(0); else return(sk_value(ad->sk,idx)); } /* The callback is called with the 'object', which is the original data object * being duplicated, a pointer to the * 'new' object to be inserted, the index, and the argi/argp */ int CRYPTO_dup_ex_data(STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth, CRYPTO_EX_DATA *to, CRYPTO_EX_DATA *from) { int i,j,m,r; CRYPTO_EX_DATA_FUNCS *mm; char *from_d; if (meth == NULL) return(1); if (from->sk == NULL) return(1); m=sk_CRYPTO_EX_DATA_FUNCS_num(meth); j=sk_num(from->sk); for (i=0; i<j; i++) { from_d=CRYPTO_get_ex_data(from,i); if (i < m) { mm=sk_CRYPTO_EX_DATA_FUNCS_value(meth,i); if (mm->dup_func != NULL) r=mm->dup_func(to,from,(char **)&from_d,i, mm->argl,mm->argp); } CRYPTO_set_ex_data(to,i,from_d); } return(1); } /* Call each free callback */ void CRYPTO_free_ex_data(STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth, void *obj, CRYPTO_EX_DATA *ad) { CRYPTO_EX_DATA_FUNCS *m; void *ptr; int i,max; if (meth != NULL) { max=sk_CRYPTO_EX_DATA_FUNCS_num(meth); for (i=0; i<max; i++) { m=sk_CRYPTO_EX_DATA_FUNCS_value(meth,i); if ((m != NULL) && (m->free_func != NULL)) { ptr=CRYPTO_get_ex_data(ad,i); m->free_func(obj,ptr,ad,i,m->argl,m->argp); } } } if (ad->sk != NULL) { sk_free(ad->sk); ad->sk=NULL; } } void CRYPTO_new_ex_data(STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth, void *obj, CRYPTO_EX_DATA *ad) { CRYPTO_EX_DATA_FUNCS *m; void *ptr; int i,max; ad->sk=NULL; if (meth != NULL) { max=sk_CRYPTO_EX_DATA_FUNCS_num(meth); for (i=0; i<max; i++) { m=sk_CRYPTO_EX_DATA_FUNCS_value(meth,i); if ((m != NULL) && (m->new_func != NULL)) { ptr=CRYPTO_get_ex_data(ad,i); m->new_func(obj,ptr,ad,i,m->argl,m->argp); } } } } IMPLEMENT_STACK_OF(CRYPTO_EX_DATA_FUNCS)