1/* crypto/stack/stack.h */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#ifndef HEADER_STACK_H
60#define HEADER_STACK_H
61
62#ifdef  __cplusplus
63extern "C" {
64#endif
65
66typedef struct stack_st
67	{
68	int num;
69	char **data;
70	int sorted;
71
72	int num_alloc;
73	int (*comp)(const void *, const void *);
74	} _STACK;  /* Use STACK_OF(...) instead */
75
76#define M_sk_num(sk)		((sk) ? (sk)->num:-1)
77#define M_sk_value(sk,n)	((sk) ? (sk)->data[n] : NULL)
78
79int sk_num(const _STACK *);
80void *sk_value(const _STACK *, int);
81
82void *sk_set(_STACK *, int, void *);
83
84_STACK *sk_new(int (*cmp)(const void *, const void *));
85_STACK *sk_new_null(void);
86void sk_free(_STACK *);
87void sk_pop_free(_STACK *st, void (*func)(void *));
88int sk_insert(_STACK *sk, void *data, int where);
89void *sk_delete(_STACK *st, int loc);
90void *sk_delete_ptr(_STACK *st, void *p);
91int sk_find(_STACK *st, void *data);
92int sk_find_ex(_STACK *st, void *data);
93int sk_push(_STACK *st, void *data);
94int sk_unshift(_STACK *st, void *data);
95void *sk_shift(_STACK *st);
96void *sk_pop(_STACK *st);
97void sk_zero(_STACK *st);
98int (*sk_set_cmp_func(_STACK *sk, int (*c)(const void *, const void *)))
99	(const void *, const void *);
100_STACK *sk_dup(_STACK *st);
101void sk_sort(_STACK *st);
102int sk_is_sorted(const _STACK *st);
103
104#ifdef  __cplusplus
105}
106#endif
107
108#endif
109