1 /* Copyright (C) 1995-1998 Eric Young ([email protected]) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young ([email protected]). 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 ([email protected]). 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 ([email protected])" 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 ([email protected])" 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_NO_SOCK) 63 #if !defined(OPENSSL_WINDOWS) 64 #if defined(OPENSSL_PNACL) 65 // newlib uses u_short in socket.h without defining it. 66 typedef unsigned short u_short; 67 #endif 68 #include <sys/types.h> 69 #include <sys/socket.h> 70 #else 71 OPENSSL_MSVC_PRAGMA(warning(push, 3)) 72 #include <winsock2.h> 73 OPENSSL_MSVC_PRAGMA(warning(pop)) 74 typedef int socklen_t; 75 #endif 76 #endif // !OPENSSL_NO_SOCK 77 78 #if defined(__cplusplus) 79 extern "C" { 80 #endif 81 82 83 #if !defined(OPENSSL_NO_SOCK) 84 85 // bio_ip_and_port_to_socket_and_addr creates a socket and fills in |*out_addr| 86 // and |*out_addr_length| with the correct values for connecting to |hostname| 87 // on |port_str|. It returns one on success or zero on error. 88 int bio_ip_and_port_to_socket_and_addr(int *out_sock, 89 struct sockaddr_storage *out_addr, 90 socklen_t *out_addr_length, 91 const char *hostname, 92 const char *port_str); 93 94 // bio_socket_nbio sets whether |sock| is non-blocking. It returns one on 95 // success and zero otherwise. 96 int bio_socket_nbio(int sock, int on); 97 98 // bio_clear_socket_error clears the last system socket error. 99 // 100 // TODO(fork): remove all callers of this. 101 void bio_clear_socket_error(void); 102 103 // bio_sock_error returns the last socket error on |sock|. 104 int bio_sock_error(int sock); 105 106 // bio_socket_should_retry returns non-zero if |return_value| indicates an error 107 // and the last socket error indicates that it's non-fatal. 108 int bio_socket_should_retry(int return_value); 109 110 #endif // !OPENSSL_NO_SOCK 111 112 // bio_errno_should_retry returns non-zero if |return_value| indicates an error 113 // and |errno| indicates that it's non-fatal. 114 int bio_errno_should_retry(int return_value); 115 116 117 #if defined(__cplusplus) 118 } // extern C 119 #endif 120 121 #endif // OPENSSL_HEADER_BIO_INTERNAL_H 122