--- /dev/null
+/*
+ * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#ifndef HEADER_SAFESTACK_H
+# define HEADER_SAFESTACK_H
+
+# include <openssl/stack.h>
+# include <openssl/e_os2.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+# define STACK_OF(type) struct stack_st_##type
+
+# define SKM_DEFINE_STACK_OF(t1, t2, t3) \
+ STACK_OF(t1); \
+ typedef int (*sk_##t1##_compfunc)(const t3 * const *a, const t3 *const *b); \
+ typedef void (*sk_##t1##_freefunc)(t3 *a); \
+ typedef t3 * (*sk_##t1##_copyfunc)(const t3 *a); \
+ static ossl_inline int sk_##t1##_num(const STACK_OF(t1) *sk) \
+ { \
+ return OPENSSL_sk_num((const OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline t2 *sk_##t1##_value(const STACK_OF(t1) *sk, int idx) \
+ { \
+ return (t2 *)OPENSSL_sk_value((const OPENSSL_STACK *)sk, idx); \
+ } \
+ static ossl_inline STACK_OF(t1) *sk_##t1##_new(sk_##t1##_compfunc compare) \
+ { \
+ return (STACK_OF(t1) *)OPENSSL_sk_new((OPENSSL_sk_compfunc)compare); \
+ } \
+ static ossl_inline STACK_OF(t1) *sk_##t1##_new_null(void) \
+ { \
+ return (STACK_OF(t1) *)OPENSSL_sk_new_null(); \
+ } \
+ static ossl_inline void sk_##t1##_free(STACK_OF(t1) *sk) \
+ { \
+ OPENSSL_sk_free((OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline void sk_##t1##_zero(STACK_OF(t1) *sk) \
+ { \
+ OPENSSL_sk_zero((OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline t2 *sk_##t1##_delete(STACK_OF(t1) *sk, int i) \
+ { \
+ return (t2 *)OPENSSL_sk_delete((OPENSSL_STACK *)sk, i); \
+ } \
+ static ossl_inline t2 *sk_##t1##_delete_ptr(STACK_OF(t1) *sk, t2 *ptr) \
+ { \
+ return (t2 *)OPENSSL_sk_delete_ptr((OPENSSL_STACK *)sk, \
+ (const void *)ptr); \
+ } \
+ static ossl_inline int sk_##t1##_push(STACK_OF(t1) *sk, t2 *ptr) \
+ { \
+ return OPENSSL_sk_push((OPENSSL_STACK *)sk, (const void *)ptr); \
+ } \
+ static ossl_inline int sk_##t1##_unshift(STACK_OF(t1) *sk, t2 *ptr) \
+ { \
+ return OPENSSL_sk_unshift((OPENSSL_STACK *)sk, (const void *)ptr); \
+ } \
+ static ossl_inline t2 *sk_##t1##_pop(STACK_OF(t1) *sk) \
+ { \
+ return (t2 *)OPENSSL_sk_pop((OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline t2 *sk_##t1##_shift(STACK_OF(t1) *sk) \
+ { \
+ return (t2 *)OPENSSL_sk_shift((OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline void sk_##t1##_pop_free(STACK_OF(t1) *sk, sk_##t1##_freefunc freefunc) \
+ { \
+ OPENSSL_sk_pop_free((OPENSSL_STACK *)sk, (OPENSSL_sk_freefunc)freefunc); \
+ } \
+ static ossl_inline int sk_##t1##_insert(STACK_OF(t1) *sk, t2 *ptr, int idx) \
+ { \
+ return OPENSSL_sk_insert((OPENSSL_STACK *)sk, (const void *)ptr, idx); \
+ } \
+ static ossl_inline t2 *sk_##t1##_set(STACK_OF(t1) *sk, int idx, t2 *ptr) \
+ { \
+ return (t2 *)OPENSSL_sk_set((OPENSSL_STACK *)sk, idx, (const void *)ptr); \
+ } \
+ static ossl_inline int sk_##t1##_find(STACK_OF(t1) *sk, t2 *ptr) \
+ { \
+ return OPENSSL_sk_find((OPENSSL_STACK *)sk, (const void *)ptr); \
+ } \
+ static ossl_inline int sk_##t1##_find_ex(STACK_OF(t1) *sk, t2 *ptr) \
+ { \
+ return OPENSSL_sk_find_ex((OPENSSL_STACK *)sk, (const void *)ptr); \
+ } \
+ static ossl_inline void sk_##t1##_sort(STACK_OF(t1) *sk) \
+ { \
+ OPENSSL_sk_sort((OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline int sk_##t1##_is_sorted(const STACK_OF(t1) *sk) \
+ { \
+ return OPENSSL_sk_is_sorted((const OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline STACK_OF(t1) * sk_##t1##_dup(const STACK_OF(t1) *sk) \
+ { \
+ return (STACK_OF(t1) *)OPENSSL_sk_dup((const OPENSSL_STACK *)sk); \
+ } \
+ static ossl_inline STACK_OF(t1) *sk_##t1##_deep_copy(const STACK_OF(t1) *sk, \
+ sk_##t1##_copyfunc copyfunc, \
+ sk_##t1##_freefunc freefunc) \
+ { \
+ return (STACK_OF(t1) *)OPENSSL_sk_deep_copy((const OPENSSL_STACK *)sk, \
+ (OPENSSL_sk_copyfunc)copyfunc, \
+ (OPENSSL_sk_freefunc)freefunc); \
+ } \
+ static ossl_inline sk_##t1##_compfunc sk_##t1##_set_cmp_func(STACK_OF(t1) *sk, sk_##t1##_compfunc compare) \
+ { \
+ return (sk_##t1##_compfunc)OPENSSL_sk_set_cmp_func((OPENSSL_STACK *)sk, (OPENSSL_sk_compfunc)compare); \
+ }
+
+# define DEFINE_SPECIAL_STACK_OF(t1, t2) SKM_DEFINE_STACK_OF(t1, t2, t2)
+# define DEFINE_STACK_OF(t) SKM_DEFINE_STACK_OF(t, t, t)
+# define DEFINE_SPECIAL_STACK_OF_CONST(t1, t2) \
+ SKM_DEFINE_STACK_OF(t1, const t2, t2)
+# define DEFINE_STACK_OF_CONST(t) SKM_DEFINE_STACK_OF(t, const t, t)
+
+/*-
+ * 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.
+ *
+ * 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.
+ */
+DEFINE_SPECIAL_STACK_OF(OPENSSL_STRING, char)
+DEFINE_SPECIAL_STACK_OF_CONST(OPENSSL_CSTRING, char)
+
+/*
+ * Similarly, we sometimes use a block of characters, NOT nul-terminated.
+ * These should also be distinguished from "normal" stacks.
+ */
+typedef void *OPENSSL_BLOCK;
+DEFINE_SPECIAL_STACK_OF(OPENSSL_BLOCK, void)
+
+# ifdef __cplusplus
+}
+# endif
+#endif
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