Import of old SSLeay release: SSLeay 0.9.0b
diff --git a/crypto/ex_data.c b/crypto/ex_data.c
new file mode 100644
index 0000000..c858b51
--- /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);
+ }
+ }
+ }
+ }
+
+
