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diff --git a/src/lib/libcrypto/bio/bio_local.h b/src/lib/libcrypto/bio/bio_local.h
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1/* $OpenBSD: bio_local.h,v 1.6 2024/03/02 09:18:28 tb Exp $ */
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_BIO_LOCAL_H
60#define HEADER_BIO_LOCAL_H
61
62#include <stdarg.h>
63
64__BEGIN_HIDDEN_DECLS
65
66struct bio_method_st {
67 int type;
68 const char *name;
69 int (*bwrite)(BIO *, const char *, int);
70 int (*bread)(BIO *, char *, int);
71 int (*bputs)(BIO *, const char *);
72 int (*bgets)(BIO *, char *, int);
73 long (*ctrl)(BIO *, int, long, void *);
74 int (*create)(BIO *);
75 int (*destroy)(BIO *);
76 long (*callback_ctrl)(BIO *, int, BIO_info_cb *);
77} /* BIO_METHOD */;
78
79struct bio_st {
80 const BIO_METHOD *method;
81 BIO_callback_fn callback;
82 BIO_callback_fn_ex callback_ex;
83 char *cb_arg; /* first argument for the callback */
84
85 int init;
86 int shutdown;
87 int flags; /* extra storage */
88 int retry_reason;
89 int num;
90 void *ptr;
91 struct bio_st *next_bio; /* used by filter BIOs */
92 struct bio_st *prev_bio; /* used by filter BIOs */
93 int references;
94 unsigned long num_read;
95 unsigned long num_write;
96
97 CRYPTO_EX_DATA ex_data;
98} /* BIO */;
99
100typedef struct bio_f_buffer_ctx_struct {
101 /* Buffers are setup like this:
102 *
103 * <---------------------- size ----------------------->
104 * +---------------------------------------------------+
105 * | consumed | remaining | free space |
106 * +---------------------------------------------------+
107 * <-- off --><------- len ------->
108 */
109
110 /* BIO *bio; */ /* this is now in the BIO struct */
111 int ibuf_size; /* how big is the input buffer */
112 int obuf_size; /* how big is the output buffer */
113
114 char *ibuf; /* the char array */
115 int ibuf_len; /* how many bytes are in it */
116 int ibuf_off; /* write/read offset */
117
118 char *obuf; /* the char array */
119 int obuf_len; /* how many bytes are in it */
120 int obuf_off; /* write/read offset */
121} BIO_F_BUFFER_CTX;
122
123int BIO_vprintf(BIO *bio, const char *format, va_list args);
124
125__END_HIDDEN_DECLS
126
127#endif /* !HEADER_BIO_LOCAL_H */