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author | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:56:39 +0000 |
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committer | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:56:39 +0000 |
commit | 58964a492275ca9a59a0cd9c8155cb2491b4b909 (patch) | |
tree | c7b16876a5789463bbbb468ef4829c8129b3d718 /crypto/ex_data.c | |
parent | d02b48c63a58ea4367a0e905979f140b7d090f86 (diff) | |
download | openssl-new-58964a492275ca9a59a0cd9c8155cb2491b4b909.tar.gz |
Import of old SSLeay release: SSLeay 0.9.0b
Diffstat (limited to 'crypto/ex_data.c')
-rw-r--r-- | crypto/ex_data.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/crypto/ex_data.c b/crypto/ex_data.c new file mode 100644 index 0000000000..c858b518ff --- /dev/null +++ b/crypto/ex_data.c @@ -0,0 +1,236 @@ +/* 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 "buffer.h" +#include "bio.h" +#include "lhash.h" +#include "cryptlib.h" + +int CRYPTO_get_ex_new_index(idx,skp,argl,argp,new_func,dup_func,free_func) +int idx; +STACK **skp; +long argl; +char *argp; +int (*new_func)(); +int (*dup_func)(); +void (*free_func)(); + { + CRYPTO_EX_DATA_FUNCS *a; + + if (*skp == NULL) + *skp=sk_new_null(); + if (*skp == NULL) + { + CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE); + return(-1); + } + 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); + return(-1); + } + a->argl=argl; + a->argp=argp; + a->new_func=new_func; + a->dup_func=dup_func; + a->free_func=free_func; + while (sk_num(*skp) <= idx) + { + if (!sk_push(*skp,NULL)) + { + CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE); + Free(a); + return(-1); + } + } + sk_value(*skp,idx)=(char *)a; + return(idx); + } + +int CRYPTO_set_ex_data(ad,idx,val) +CRYPTO_EX_DATA *ad; +int idx; +char *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_value(ad->sk,idx)=val; + return(1); + } + +char *CRYPTO_get_ex_data(ad,idx) +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 origional data object + * being duplicated, a pointer to the + * 'new' object to be inserted, the index, and the argi/argp + */ +int CRYPTO_dup_ex_data(meth,to,from) +STACK *meth; +CRYPTO_EX_DATA *to,*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_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=(CRYPTO_EX_DATA_FUNCS *)sk_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(meth,obj,ad) +STACK *meth; +char *obj; +CRYPTO_EX_DATA *ad; + { + CRYPTO_EX_DATA_FUNCS *m; + char *ptr; + int i,max; + + if (meth != NULL) + { + max=sk_num(meth); + for (i=0; i<max; i++) + { + m=(CRYPTO_EX_DATA_FUNCS *)sk_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(meth,obj,ad) +STACK *meth; +char *obj; +CRYPTO_EX_DATA *ad; + { + CRYPTO_EX_DATA_FUNCS *m; + char *ptr; + int i,max; + + ad->sk=NULL; + if (meth != NULL) + { + max=sk_num(meth); + for (i=0; i<max; i++) + { + m=(CRYPTO_EX_DATA_FUNCS *)sk_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); + } + } + } + } + + |