diff options
Diffstat (limited to 'crypto/stack/stack.c')
| -rw-r--r-- | crypto/stack/stack.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/crypto/stack/stack.c b/crypto/stack/stack.c index 76cf1a1168..980bb68442 100644 --- a/crypto/stack/stack.c +++ b/crypto/stack/stack.c @@ -112,6 +112,43 @@ err: return(NULL); } +_STACK *sk_deep_copy(_STACK *sk, void *(*copy_func)(void *), + void (*free_func)(void *)) + { + _STACK *ret; + int i; + + if ((ret = OPENSSL_malloc(sizeof(_STACK))) == NULL) + return ret; + ret->comp = sk->comp; + ret->sorted = sk->sorted; + ret->num = sk->num; + ret->num_alloc = sk->num > MIN_NODES ? sk->num : MIN_NODES; + ret->data = OPENSSL_malloc(sizeof(char *) * ret->num_alloc); + if (ret->data == NULL) + { + OPENSSL_free(ret); + return NULL; + } + for (i = 0; i < ret->num_alloc; i++) + ret->data[i] = NULL; + + for (i = 0; i < ret->num; ++i) + { + if (sk->data[i] == NULL) + continue; + if ((ret->data[i] = copy_func(sk->data[i])) == NULL) + { + while (--i >= 0) + if (ret->data[i] != NULL) + free_func(ret->data[i]); + sk_free(ret); + return NULL; + } + } + return ret; + } + _STACK *sk_new_null(void) { return sk_new((int (*)(const void *, const void *))0); |