1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57#ifndef OPENSSL_HEADER_BIO_INTERNAL_H
58#define OPENSSL_HEADER_BIO_INTERNAL_H
59
60#include <openssl/base.h>
61
62#if !defined(OPENSSL_WINDOWS)
63#if defined(OPENSSL_PNACL)
64// newlib uses u_short in socket.h without defining it.
65typedef unsigned short u_short;
66#endif
67#include <sys/types.h>
68#include <sys/socket.h>
69#else
70OPENSSL_MSVC_PRAGMA(warning(push, 3))
71#include <winsock2.h>
72OPENSSL_MSVC_PRAGMA(warning(pop))
73typedef int socklen_t;
74#endif
75
76#if defined(__cplusplus)
77extern "C" {
78#endif
79
80
81// BIO_ip_and_port_to_socket_and_addr creates a socket and fills in |*out_addr|
82// and |*out_addr_length| with the correct values for connecting to |hostname|
83// on |port_str|. It returns one on success or zero on error.
84int bio_ip_and_port_to_socket_and_addr(int *out_sock,
85 struct sockaddr_storage *out_addr,
86 socklen_t *out_addr_length,
87 const char *hostname,
88 const char *port_str);
89
90// BIO_socket_nbio sets whether |sock| is non-blocking. It returns one on
91// success and zero otherwise.
92int bio_socket_nbio(int sock, int on);
93
94// BIO_clear_socket_error clears the last system socket error.
95//
96// TODO(fork): remove all callers of this.
97void bio_clear_socket_error(void);
98
99// BIO_sock_error returns the last socket error on |sock|.
100int bio_sock_error(int sock);
101
102// BIO_fd_should_retry returns non-zero if |return_value| indicates an error
103// and |errno| indicates that it's non-fatal.
104int bio_fd_should_retry(int return_value);
105
106
107#if defined(__cplusplus)
108} // extern C
109#endif
110
111#endif // OPENSSL_HEADER_BIO_INTERNAL_H
112