- MemCheck_on();
- return(idx);
- }
-
-int CRYPTO_set_ex_data(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(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
+ CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
+ return toret;
+}
+
+/*
+ * Register a new index.
+ */
+int CRYPTO_get_ex_new_index(int class_index, long argl, void *argp,
+ CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
+ CRYPTO_EX_free *free_func)
+{
+ int toret = -1;
+ EX_CALLBACK *a;
+ EX_CALLBACKS *ip = get_and_lock(class_index);
+
+ if (ip == NULL)
+ return -1;
+ a = (EX_CALLBACK *)OPENSSL_malloc(sizeof(*a));
+ 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;
+
+ if (!sk_EX_CALLBACK_push(ip->meth, NULL)) {
+ CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(a);
+ goto err;
+ }
+ toret = sk_EX_CALLBACK_num(ip->meth) - 1;
+ (void)sk_EX_CALLBACK_set(ip->meth, toret, a);
+
+ err:
+ CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
+ return toret;
+}
+
+/*
+ * Initialise a new CRYPTO_EX_DATA for use in a particular class - including
+ * calling new() callbacks for each index in the class used by this variable
+ * Thread-safe by copying a class's array of "EX_CALLBACK" entries
+ * in the lock, then using them outside the lock. Note this only applies
+ * to the global "ex_data" state (ie. class definitions), not 'ad' itself.
+ */
+int CRYPTO_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad)
+{
+ int mx, i;
+ void *ptr;
+ EX_CALLBACK **storage = NULL;
+ EX_CALLBACK *stack[10];
+ EX_CALLBACKS *ip = get_and_lock(class_index);
+
+ if (ip == NULL)
+ return 0;
+
+ ad->sk = NULL;
+
+ mx = sk_EX_CALLBACK_num(ip->meth);
+ if (mx > 0) {
+ if (mx < (int)OSSL_NELEM(stack))
+ storage = stack;
+ else
+ storage = OPENSSL_malloc(sizeof(*storage) * mx);
+ if (storage != NULL)
+ for (i = 0; i < mx; i++)
+ storage[i] = sk_EX_CALLBACK_value(ip->meth, i);
+ }
+ CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
+
+ if (mx > 0 && storage == NULL) {
+ CRYPTOerr(CRYPTO_F_CRYPTO_NEW_EX_DATA, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ for (i = 0; i < mx; i++) {
+ if (storage[i] && storage[i]->new_func) {
+ ptr = CRYPTO_get_ex_data(ad, i);
+ storage[i]->new_func(obj, ptr, ad, i,
+ storage[i]->argl, storage[i]->argp);
+ }
+ }
+ if (storage != stack)
+ OPENSSL_free(storage);
+ return 1;
+}
+
+/*
+ * Duplicate a CRYPTO_EX_DATA variable - including calling dup() callbacks
+ * for each index in the class used by this variable
+ */
+int CRYPTO_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
+ CRYPTO_EX_DATA *from)
+{
+ int mx, j, i;
+ char *ptr;
+ EX_CALLBACK *stack[10];
+ EX_CALLBACK **storage = NULL;
+ EX_CALLBACKS *ip;
+
+ if (from->sk == NULL)
+ /* Nothing to copy over */
+ return 1;
+ if ((ip = get_and_lock(class_index)) == NULL)
+ return 0;
+
+ mx = sk_EX_CALLBACK_num(ip->meth);
+ j = sk_void_num(from->sk);
+ if (j < mx)
+ mx = j;
+ if (mx > 0) {
+ if (mx < (int)OSSL_NELEM(stack))
+ storage = stack;
+ else
+ storage = OPENSSL_malloc(sizeof(*storage) * mx);
+ if (storage != NULL)
+ for (i = 0; i < mx; i++)
+ storage[i] = sk_EX_CALLBACK_value(ip->meth, i);
+ }
+ CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
+
+ if (mx > 0 && storage == NULL) {
+ CRYPTOerr(CRYPTO_F_CRYPTO_DUP_EX_DATA, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ for (i = 0; i < mx; i++) {
+ ptr = CRYPTO_get_ex_data(from, i);
+ if (storage[i] && storage[i]->dup_func)
+ storage[i]->dup_func(to, from, &ptr, i,
+ storage[i]->argl, storage[i]->argp);
+ CRYPTO_set_ex_data(to, i, ptr);
+ }
+ if (storage != stack)
+ OPENSSL_free(storage);
+ return 1;
+}
+
+
+/*
+ * Cleanup a CRYPTO_EX_DATA variable - including calling free() callbacks for
+ * each index in the class used by this variable