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/* ==================================================================== * Copyright (c) 1999 The OpenSSL Project. All rights reserved. * * 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 above 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 acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #ifndef HEADER_SAFESTACK_H #define HEADER_SAFESTACK_H #include <openssl/stack.h> #ifndef CHECKED_PTR_OF #define CHECKED_PTR_OF(type, p) \ ((void*) (1 ? p : (type*)0)) #endif /* In C++ we get problems because an explicit cast is needed from (void *) * we use CHECKED_STACK_OF to ensure the correct type is passed in the macros * below. */ #define CHECKED_STACK_OF(type, p) \ ((_STACK*) (1 ? p : (STACK_OF(type)*)0)) #define CHECKED_SK_FREE_FUNC(type, p) \ ((void (*)(void *)) ((1 ? p : (void (*)(type *))0))) #define CHECKED_SK_FREE_FUNC2(type, p) \ ((void (*)(void *)) ((1 ? p : (void (*)(type))0))) #define CHECKED_SK_CMP_FUNC(type, p) \ ((int (*)(const void *, const void *)) \ ((1 ? p : (int (*)(const type * const *, const type * const *))0))) #define STACK_OF(type) struct stack_st_##type #define PREDECLARE_STACK_OF(type) STACK_OF(type); #define DECLARE_STACK_OF(type) \ STACK_OF(type) \ { \ _STACK stack; \ }; #define DECLARE_SPECIAL_STACK_OF(type, type2) \ STACK_OF(type) \ { \ _STACK stack; \ }; #define IMPLEMENT_STACK_OF(type) /* nada (obsolete in new safestack approach)*/ /* Strings are special: normally an lhash entry will point to a single * (somewhat) mutable object. In the case of strings: * * a) Instead of a single char, there is an array of chars, NUL-terminated. * b) The string may have be immutable. * * So, they need their own declarations. Especially important for * type-checking tools, such as Deputy. * o * In practice, however, it appears to be hard to have a const * string. For now, I'm settling for dealing with the fact it is a * string at all. */ typedef char *OPENSSL_STRING; typedef const char *OPENSSL_CSTRING; /* Confusingly, LHASH_OF(STRING) deals with char ** throughout, but * STACK_OF(STRING) is really more like STACK_OF(char), only, as * mentioned above, instead of a single char each entry is a * NUL-terminated array of chars. So, we have to implement STRING * specially for STACK_OF. This is dealt with in the autogenerated * macros below. */ DECLARE_SPECIAL_STACK_OF(OPENSSL_STRING, char) /* Similarly, we sometimes use a block of characters, NOT * nul-terminated. These should also be distinguished from "normal" * stacks. */ typedef void *OPENSSL_BLOCK; DECLARE_SPECIAL_STACK_OF(OPENSSL_BLOCK, void) /* SKM_sk_... stack macros are internal to safestack.h: * never use them directly, use sk_<type>_... instead */ #define SKM_sk_new(type, cmp) \ ((STACK_OF(type) *)sk_new(CHECKED_SK_CMP_FUNC(type, cmp))) #define SKM_sk_new_null(type) \ ((STACK_OF(type) *)sk_new_null()) #define SKM_sk_free(type, st) \ sk_free(CHECKED_STACK_OF(type, st)) #define SKM_sk_num(type, st) \ sk_num(CHECKED_STACK_OF(type, st)) #define SKM_sk_value(type, st,i) \ ((type *)sk_value(CHECKED_STACK_OF(type, st), i)) #define SKM_sk_set(type, st,i,val) \ sk_set(CHECKED_STACK_OF(type, st), i, CHECKED_PTR_OF(type, val)) #define SKM_sk_zero(type, st) \ sk_zero(CHECKED_STACK_OF(type, st)) #define SKM_sk_push(type, st, val) \ sk_push(CHECKED_STACK_OF(type, st), CHECKED_PTR_OF(type, val)) #define SKM_sk_unshift(type, st, val) \ sk_unshift(CHECKED_STACK_OF(type, st), CHECKED_PTR_OF(type, val)) #define SKM_sk_find(type, st, val) \ sk_find(CHECKED_STACK_OF(type, st), CHECKED_PTR_OF(type, val)) #define SKM_sk_find_ex(type, st, val) \ sk_find_ex(CHECKED_STACK_OF(type, st), \ CHECKED_PTR_OF(type, val)) #define SKM_sk_delete(type, st, i) \ (type *)sk_delete(CHECKED_STACK_OF(type, st), i) #define SKM_sk_delete_ptr(type, st, ptr) \ (type *)sk_delete_ptr(CHECKED_STACK_OF(type, st), CHECKED_PTR_OF(type, ptr)) #define SKM_sk_insert(type, st,val, i) \ sk_insert(CHECKED_STACK_OF(type, st), CHECKED_PTR_OF(type, val), i) #define SKM_sk_set_cmp_func(type, st, cmp) \ ((int (*)(const type * const *,const type * const *)) \ sk_set_cmp_func(CHECKED_STACK_OF(type, st), CHECKED_SK_CMP_FUNC(type, cmp))) #define SKM_sk_dup(type, st) \ (STACK_OF(type) *)sk_dup(CHECKED_STACK_OF(type, st)) #define SKM_sk_pop_free(type, st, free_func) \ sk_pop_free(CHECKED_STACK_OF(type, st), CHECKED_SK_FREE_FUNC(type, free_func)) #define SKM_sk_shift(type, st) \ (type *)sk_shift(CHECKED_STACK_OF(type, st)) #define SKM_sk_pop(type, st) \ (type *)sk_pop(CHECKED_STACK_OF(type, st)) #define SKM_sk_sort(type, st) \ sk_sort(CHECKED_STACK_OF(type, st)) #define SKM_sk_is_sorted(type, st) \ sk_is_sorted(CHECKED_STACK_OF(type, st)) #define SKM_ASN1_SET_OF_d2i(type, st, pp, length, d2i_func, free_func, ex_tag, ex_class) \ (STACK_OF(type) *)d2i_ASN1_SET( \ (STACK_OF(OPENSSL_BLOCK) **)CHECKED_PTR_OF(STACK_OF(type)*, st), \ pp, length, \ CHECKED_D2I_OF(type, d2i_func), \ CHECKED_SK_FREE_FUNC(type, free_func), \ ex_tag, ex_class) #define SKM_ASN1_SET_OF_i2d(type, st, pp, i2d_func, ex_tag, ex_class, is_set) \ i2d_ASN1_SET((STACK_OF(OPENSSL_BLOCK) *)CHECKED_STACK_OF(type, st), pp, \ CHECKED_I2D_OF(type, i2d_func), \ ex_tag, ex_class, is_set) #define SKM_ASN1_seq_pack(type, st, i2d_func, buf, len) \ ASN1_seq_pack(CHECKED_PTR_OF(STACK_OF(type), st), \ CHECKED_I2D_OF(type, i2d_func), buf, len) #define SKM_ASN1_seq_unpack(type, buf, len, d2i_func, free_func) \ (STACK_OF(type) *)ASN1_seq_unpack(buf, len, CHECKED_D2I_OF(type, d2i_func), CHECKED_SK_FREE_FUNC(type, free_func)) #define SKM_PKCS12_decrypt_d2i(type, algor,