Merge remote-tracking branch 'origin/main' into experimental-bots-pr

1 files changed, 861 insertions, 0 deletions

diff --git a/include/openssl/bio.h.in b/include/openssl/bio.h.in
new file mode 100644
index 00000000..2c65b7e1
--- /dev/null
+++ b/include/openssl/bio.h.in
@@ -0,0 +1,861 @@
+/*
+ * {- join("\n * ", @autowarntext) -}
+ *
+ * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+{-
+use OpenSSL::stackhash qw(generate_stack_macros);
+-}
+
+#ifndef OPENSSL_BIO_H
+# define OPENSSL_BIO_H
+# pragma once
+
+# include <openssl/macros.h>
+# ifndef OPENSSL_NO_DEPRECATED_3_0
+#  define HEADER_BIO_H
+# endif
+
+# include <openssl/e_os2.h>
+
+# ifndef OPENSSL_NO_STDIO
+#  include <stdio.h>
+# endif
+# include <stdarg.h>
+
+# include <openssl/crypto.h>
+# include <openssl/bioerr.h>
+# include <openssl/core.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* There are the classes of BIOs */
+# define BIO_TYPE_DESCRIPTOR     0x0100 /* socket, fd, connect or accept */
+# define BIO_TYPE_FILTER         0x0200
+# define BIO_TYPE_SOURCE_SINK    0x0400
+
+/* These are the 'types' of BIOs */
+# define BIO_TYPE_NONE             0
+# define BIO_TYPE_MEM            ( 1|BIO_TYPE_SOURCE_SINK)
+# define BIO_TYPE_FILE           ( 2|BIO_TYPE_SOURCE_SINK)
+
+# define BIO_TYPE_FD             ( 4|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
+# define BIO_TYPE_SOCKET         ( 5|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
+# define BIO_TYPE_NULL           ( 6|BIO_TYPE_SOURCE_SINK)
+# define BIO_TYPE_SSL            ( 7|BIO_TYPE_FILTER)
+# define BIO_TYPE_MD             ( 8|BIO_TYPE_FILTER)
+# define BIO_TYPE_BUFFER         ( 9|BIO_TYPE_FILTER)
+# define BIO_TYPE_CIPHER         (10|BIO_TYPE_FILTER)
+# define BIO_TYPE_BASE64         (11|BIO_TYPE_FILTER)
+# define BIO_TYPE_CONNECT        (12|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
+# define BIO_TYPE_ACCEPT         (13|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
+
+# define BIO_TYPE_NBIO_TEST      (16|BIO_TYPE_FILTER)/* server proxy BIO */
+# define BIO_TYPE_NULL_FILTER    (17|BIO_TYPE_FILTER)
+# define BIO_TYPE_BIO            (19|BIO_TYPE_SOURCE_SINK)/* half a BIO pair */
+# define BIO_TYPE_LINEBUFFER     (20|BIO_TYPE_FILTER)
+# define BIO_TYPE_DGRAM          (21|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
+# define BIO_TYPE_ASN1           (22|BIO_TYPE_FILTER)
+# define BIO_TYPE_COMP           (23|BIO_TYPE_FILTER)
+# ifndef OPENSSL_NO_SCTP
+#  define BIO_TYPE_DGRAM_SCTP    (24|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
+# endif
+# define BIO_TYPE_CORE_TO_PROV   (25|BIO_TYPE_SOURCE_SINK)
+
+#define BIO_TYPE_START           128
+
+/*
+ * BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
+ * BIO_set_fp(in,stdin,BIO_NOCLOSE);
+ */
+# define BIO_NOCLOSE             0x00
+# define BIO_CLOSE               0x01
+
+/*
+ * These are used in the following macros and are passed to BIO_ctrl()
+ */
+# define BIO_CTRL_RESET          1/* opt - rewind/zero etc */
+# define BIO_CTRL_EOF            2/* opt - are we at the eof */
+# define BIO_CTRL_INFO           3/* opt - extra tit-bits */
+# define BIO_CTRL_SET            4/* man - set the 'IO' type */
+# define BIO_CTRL_GET            5/* man - get the 'IO' type */
+# define BIO_CTRL_PUSH           6/* opt - internal, used to signify change */
+# define BIO_CTRL_POP            7/* opt - internal, used to signify change */
+# define BIO_CTRL_GET_CLOSE      8/* man - set the 'close' on free */
+# define BIO_CTRL_SET_CLOSE      9/* man - set the 'close' on free */
+# define BIO_CTRL_PENDING        10/* opt - is their more data buffered */
+# define BIO_CTRL_FLUSH          11/* opt - 'flush' buffered output */
+# define BIO_CTRL_DUP            12/* man - extra stuff for 'duped' BIO */
+# define BIO_CTRL_WPENDING       13/* opt - number of bytes still to write */
+# define BIO_CTRL_SET_CALLBACK   14/* opt - set callback function */
+# define BIO_CTRL_GET_CALLBACK   15/* opt - set callback function */
+
+# define BIO_CTRL_PEEK           29/* BIO_f_buffer special */
+# define BIO_CTRL_SET_FILENAME   30/* BIO_s_file special */
+
+/* dgram BIO stuff */
+# define BIO_CTRL_DGRAM_CONNECT       31/* BIO dgram special */
+# define BIO_CTRL_DGRAM_SET_CONNECTED 32/* allow for an externally connected
+                                         * socket to be passed in */
+# define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33/* setsockopt, essentially */
+# define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34/* getsockopt, essentially */
+# define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35/* setsockopt, essentially */
+# define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36/* getsockopt, essentially */
+
+# define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37/* flag whether the last */
+# define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38/* I/O operation timed out */
+
+/* #ifdef IP_MTU_DISCOVER */
+# define BIO_CTRL_DGRAM_MTU_DISCOVER       39/* set DF bit on egress packets */
+/* #endif */
+
+# define BIO_CTRL_DGRAM_QUERY_MTU          40/* as kernel for current MTU */
+# define BIO_CTRL_DGRAM_GET_FALLBACK_MTU   47
+# define BIO_CTRL_DGRAM_GET_MTU            41/* get cached value for MTU */
+# define BIO_CTRL_DGRAM_SET_MTU            42/* set cached value for MTU.
+                                              * want to use this if asking
+                                              * the kernel fails */
+
+# define BIO_CTRL_DGRAM_MTU_EXCEEDED       43/* check whether the MTU was
+                                              * exceed in the previous write
+                                              * operation */
+
+# define BIO_CTRL_DGRAM_GET_PEER           46
+# define BIO_CTRL_DGRAM_SET_PEER           44/* Destination for the data */
+
+# define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT   45/* Next DTLS handshake timeout
+                                              * to adjust socket timeouts */
+# define BIO_CTRL_DGRAM_SET_DONT_FRAG      48
+
+# define BIO_CTRL_DGRAM_GET_MTU_OVERHEAD   49
+
+/* Deliberately outside of OPENSSL_NO_SCTP - used in bss_dgram.c */
+#  define BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE    50
+# ifndef OPENSSL_NO_SCTP
+/* SCTP stuff */
+#  define BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY                51
+#  define BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY               52
+#  define BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD               53
+#  define BIO_CTRL_DGRAM_SCTP_GET_SNDINFO         60
+#  define BIO_CTRL_DGRAM_SCTP_SET_SNDINFO         61
+#  define BIO_CTRL_DGRAM_SCTP_GET_RCVINFO         62
+#  define BIO_CTRL_DGRAM_SCTP_SET_RCVINFO         63
+#  define BIO_CTRL_DGRAM_SCTP_GET_PRINFO                  64
+#  define BIO_CTRL_DGRAM_SCTP_SET_PRINFO                  65
+#  define BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN               70
+# endif
+
+# define BIO_CTRL_DGRAM_SET_PEEK_MODE      71
+
+/*
+ * internal BIO:
+ * # define BIO_CTRL_SET_KTLS_SEND                 72
+ * # define BIO_CTRL_SET_KTLS_SEND_CTRL_MSG        74
+ * # define BIO_CTRL_CLEAR_KTLS_CTRL_MSG           75
+ */
+
+# define BIO_CTRL_GET_KTLS_SEND                 73
+# define BIO_CTRL_GET_KTLS_RECV                 76
+
+# define BIO_CTRL_DGRAM_SCTP_WAIT_FOR_DRY       77
+# define BIO_CTRL_DGRAM_SCTP_MSG_WAITING        78
+
+/* BIO_f_prefix controls */
+# define BIO_CTRL_SET_PREFIX                    79
+# define BIO_CTRL_SET_INDENT                    80
+# define BIO_CTRL_GET_INDENT                    81
+
+# ifndef OPENSSL_NO_KTLS
+#  define BIO_get_ktls_send(b)         \
+     BIO_ctrl(b, BIO_CTRL_GET_KTLS_SEND, 0, NULL)
+#  define BIO_get_ktls_recv(b)         \
+     BIO_ctrl(b, BIO_CTRL_GET_KTLS_RECV, 0, NULL)
+# else
+#  define BIO_get_ktls_send(b)  (0)
+#  define BIO_get_ktls_recv(b)  (0)
+# endif
+
+/* modifiers */
+# define BIO_FP_READ             0x02
+# define BIO_FP_WRITE            0x04
+# define BIO_FP_APPEND           0x08
+# define BIO_FP_TEXT             0x10
+
+# define BIO_FLAGS_READ          0x01
+# define BIO_FLAGS_WRITE         0x02
+# define BIO_FLAGS_IO_SPECIAL    0x04
+# define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
+# define BIO_FLAGS_SHOULD_RETRY  0x08
+# ifndef OPENSSL_NO_DEPRECATED_3_0
+/* This #define was replaced by an internal constant and should not be used. */
+#  define BIO_FLAGS_UPLINK       0
+# endif
+
+# define BIO_FLAGS_BASE64_NO_NL  0x100
+
+/*
+ * This is used with memory BIOs:
+ * BIO_FLAGS_MEM_RDONLY means we shouldn't free up or change the data in any way;
+ * BIO_FLAGS_NONCLEAR_RST means we shouldn't clear data on reset.
+ */
+# define BIO_FLAGS_MEM_RDONLY    0x200
+# define BIO_FLAGS_NONCLEAR_RST  0x400
+# define BIO_FLAGS_IN_EOF        0x800
+
+typedef union bio_addr_st BIO_ADDR;
+typedef struct bio_addrinfo_st BIO_ADDRINFO;
+
+int BIO_get_new_index(void);
+void BIO_set_flags(BIO *b, int flags);
+int BIO_test_flags(const BIO *b, int flags);
+void BIO_clear_flags(BIO *b, int flags);
+
+# define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
+# define BIO_set_retry_special(b) \
+                BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
+# define BIO_set_retry_read(b) \
+                BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
+# define BIO_set_retry_write(b) \
+                BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
+
+/* These are normally used internally in BIOs */
+# define BIO_clear_retry_flags(b) \
+                BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
+# define BIO_get_retry_flags(b) \
+                BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
+
+/* These should be used by the application to tell why we should retry */
+# define BIO_should_read(a)              BIO_test_flags(a, BIO_FLAGS_READ)
+# define BIO_should_write(a)             BIO_test_flags(a, BIO_FLAGS_WRITE)
+# define BIO_should_io_special(a)        BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
+# define BIO_retry_type(a)               BIO_test_flags(a, BIO_FLAGS_RWS)
+# define BIO_should_retry(a)             BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
+
+/*
+ * The next three are used in conjunction with the BIO_should_io_special()
+ * condition.  After this returns true, BIO *BIO_get_retry_BIO(BIO *bio, int
+ * *reason); will walk the BIO stack and return the 'reason' for the special
+ * and the offending BIO. Given a BIO, BIO_get_retry_reason(bio) will return
+ * the code.
+ */
+/*
+ * Returned from the SSL bio when the certificate retrieval code had an error
+ */
+# define BIO_RR_SSL_X509_LOOKUP          0x01
+/* Returned from the connect BIO when a connect would have blocked */
+# define BIO_RR_CONNECT                  0x02
+/* Returned from the accept BIO when an accept would have blocked */
+# define BIO_RR_ACCEPT                   0x03
+
+/* These are passed by the BIO callback */
+# define BIO_CB_FREE     0x01
+# define BIO_CB_READ     0x02
+# define BIO_CB_WRITE    0x03
+# define BIO_CB_PUTS     0x04
+# define BIO_CB_GETS     0x05
+# define BIO_CB_CTRL     0x06
+
+/*
+ * The callback is called before and after the underling operation, The
+ * BIO_CB_RETURN flag indicates if it is after the call
+ */
+# define BIO_CB_RETURN   0x80
+# define BIO_CB_return(a) ((a)|BIO_CB_RETURN)
+# define BIO_cb_pre(a)   (!((a)&BIO_CB_RETURN))
+# define BIO_cb_post(a)  ((a)&BIO_CB_RETURN)
+
+# ifndef OPENSSL_NO_DEPRECATED_3_0
+typedef long (*BIO_callback_fn)(BIO *b, int oper, const char *argp, int argi,
+                                long argl, long ret);
+OSSL_DEPRECATEDIN_3_0 BIO_callback_fn BIO_get_callback(const BIO *b);
+OSSL_DEPRECATEDIN_3_0 void BIO_set_callback(BIO *b, BIO_callback_fn callback);
+OSSL_DEPRECATEDIN_3_0 long BIO_debug_callback(BIO *bio, int cmd,
+                                               const char *argp, int argi,
+                                               long argl, long ret);
+# endif
+
+typedef long (*BIO_callback_fn_ex)(BIO *b, int oper, const char *argp,
+                                   size_t len, int argi,
+                                   long argl, int ret, size_t *processed);
+BIO_callback_fn_ex BIO_get_callback_ex(const BIO *b);
+void BIO_set_callback_ex(BIO *b, BIO_callback_fn_ex callback);
+long BIO_debug_callback_ex(BIO *bio, int oper, const char *argp, size_t len,
+                           int argi, long argl, int ret, size_t *processed);
+
+char *BIO_get_callback_arg(const BIO *b);
+void BIO_set_callback_arg(BIO *b, char *arg);
+
+typedef struct bio_method_st BIO_METHOD;
+
+const char *BIO_method_name(const BIO *b);
+int BIO_method_type(const BIO *b);
+
+typedef int BIO_info_cb(BIO *, int, int);
+typedef BIO_info_cb bio_info_cb;  /* backward compatibility */
+
+{-
+    generate_stack_macros("BIO");
+-}
+
+
+/* Prefix and suffix callback in ASN1 BIO */
+typedef int asn1_ps_func (BIO *b, unsigned char **pbuf, int *plen,
+                          void *parg);
+
+typedef void (*BIO_dgram_sctp_notification_handler_fn) (BIO *b,
+                                                        void *context,
+                                                        void *buf);
+# ifndef OPENSSL_NO_SCTP
+/* SCTP parameter structs */
+struct bio_dgram_sctp_sndinfo {
+    uint16_t snd_sid;
+    uint16_t snd_flags;
+    uint32_t snd_ppid;
+    uint32_t snd_context;
+};
+
+struct bio_dgram_sctp_rcvinfo {
+    uint16_t rcv_sid;
+    uint16_t rcv_ssn;
+    uint16_t rcv_flags;
+    uint32_t rcv_ppid;
+    uint32_t rcv_tsn;
+    uint32_t rcv_cumtsn;
+    uint32_t rcv_context;
+};
+
+struct bio_dgram_sctp_prinfo {
+    uint16_t pr_policy;
+    uint32_t pr_value;
+};
+# endif
+
+/*
+ * #define BIO_CONN_get_param_hostname BIO_ctrl
+ */
+
+# define BIO_C_SET_CONNECT                       100
+# define BIO_C_DO_STATE_MACHINE                  101
+# define BIO_C_SET_NBIO                          102
+/* # define BIO_C_SET_PROXY_PARAM                   103 */
+# define BIO_C_SET_FD                            104
+# define BIO_C_GET_FD                            105
+# define BIO_C_SET_FILE_PTR                      106
+# define BIO_C_GET_FILE_PTR                      107
+# define BIO_C_SET_FILENAME                      108
+# define BIO_C_SET_SSL                           109
+# define BIO_C_GET_SSL                           110
+# define BIO_C_SET_MD                            111
+# define BIO_C_GET_MD                            112
+# define BIO_C_GET_CIPHER_STATUS                 113
+# define BIO_C_SET_BUF_MEM                       114
+# define BIO_C_GET_BUF_MEM_PTR                   115
+# define BIO_C_GET_BUFF_NUM_LINES                116
+# define BIO_C_SET_BUFF_SIZE                     117
+# define BIO_C_SET_ACCEPT                        118
+# define BIO_C_SSL_MODE                          119
+# define BIO_C_GET_MD_CTX                        120
+/* # define BIO_C_GET_PROXY_PARAM                   121 */
+# define BIO_C_SET_BUFF_READ_DATA                122/* data to read first */
+# define BIO_C_GET_CONNECT                       123
+# define BIO_C_GET_ACCEPT                        124
+# define BIO_C_SET_SSL_RENEGOTIATE_BYTES         125
+# define BIO_C_GET_SSL_NUM_RENEGOTIATES          126
+# define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT       127
+# define BIO_C_FILE_SEEK                         128
+# define BIO_C_GET_CIPHER_CTX                    129
+# define BIO_C_SET_BUF_MEM_EOF_RETURN            130/* return end of input
+                                                     * value */
+# define BIO_C_SET_BIND_MODE                     131
+# define BIO_C_GET_BIND_MODE                     132
+# define BIO_C_FILE_TELL                         133
+# define BIO_C_GET_SOCKS                         134
+# define BIO_C_SET_SOCKS                         135
+
+# define BIO_C_SET_WRITE_BUF_SIZE                136/* for BIO_s_bio */
+# define BIO_C_GET_WRITE_BUF_SIZE                137
+# define BIO_C_MAKE_BIO_PAIR                     138
+# define BIO_C_DESTROY_BIO_PAIR                  139
+# define BIO_C_GET_WRITE_GUARANTEE               140
+# define BIO_C_GET_READ_REQUEST                  141
+# define BIO_C_SHUTDOWN_WR                       142
+# define BIO_C_NREAD0                            143
+# define BIO_C_NREAD                             144
+# define BIO_C_NWRITE0                           145
+# define BIO_C_NWRITE                            146
+# define BIO_C_RESET_READ_REQUEST                147
+# define BIO_C_SET_MD_CTX                        148
+
+# define BIO_C_SET_PREFIX                        149
+# define BIO_C_GET_PREFIX                        150
+# define BIO_C_SET_SUFFIX                        151
+# define BIO_C_GET_SUFFIX                        152
+
+# define BIO_C_SET_EX_ARG                        153
+# define BIO_C_GET_EX_ARG                        154
+
+# define BIO_C_SET_CONNECT_MODE                  155
+
+# define BIO_set_app_data(s,arg)         BIO_set_ex_data(s,0,arg)
+# define BIO_get_app_data(s)             BIO_get_ex_data(s,0)
+
+# define BIO_set_nbio(b,n)             BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
+
+# ifndef OPENSSL_NO_SOCK
+/* IP families we support, for BIO_s_connect() and BIO_s_accept() */
+/* Note: the underlying operating system may not support some of them */
+#  define BIO_FAMILY_IPV4                         4
+#  define BIO_FAMILY_IPV6                         6
+#  define BIO_FAMILY_IPANY                        256
+
+/* BIO_s_connect() */
+#  define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0, \
+                                                 (char *)(name))
+#  define BIO_set_conn_port(b,port)     BIO_ctrl(b,BIO_C_SET_CONNECT,1, \
+                                                 (char *)(port))
+#  define BIO_set_conn_address(b,addr)  BIO_ctrl(b,BIO_C_SET_CONNECT,2, \
+                                                 (char *)(addr))
+#  define BIO_set_conn_ip_family(b,f)   BIO_int_ctrl(b,BIO_C_SET_CONNECT,3,f)
+#  define BIO_get_conn_hostname(b)      ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0))
+#  define BIO_get_conn_port(b)          ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1))
+#  define BIO_get_conn_address(b)       ((const BIO_ADDR *)BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2))
+#  define BIO_get_conn_ip_family(b)     BIO_ctrl(b,BIO_C_GET_CONNECT,3,NULL)
+#  define BIO_set_conn_mode(b,n)        BIO_ctrl(b,BIO_C_SET_CONNECT_MODE,(n),NULL)
+
+/* BIO_s_accept() */
+#  define BIO_set_accept_name(b,name)   BIO_ctrl(b,BIO_C_SET_ACCEPT,0, \
+                                                 (char *)(name))
+#  define BIO_set_accept_port(b,port)   BIO_ctrl(b,BIO_C_SET_ACCEPT,1, \
+                                                 (char *)(port))
+#  define BIO_get_accept_name(b)        ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0))
+#  define BIO_get_accept_port(b)        ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,1))
+#  define BIO_get_peer_name(b)          ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,2))
+#  define BIO_get_peer_port(b)          ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,3))
+/* #define BIO_set_nbio(b,n)    BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
+#  define BIO_set_nbio_accept(b,n)      BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(n)?(void *)"a":NULL)
+#  define BIO_set_accept_bios(b,bio)    BIO_ctrl(b,BIO_C_SET_ACCEPT,3, \
+                                                 (char *)(bio))
+#  define BIO_set_accept_ip_family(b,f) BIO_int_ctrl(b,BIO_C_SET_ACCEPT,4,f)
+#  define BIO_get_accept_ip_family(b)   BIO_ctrl(b,BIO_C_GET_ACCEPT,4,NULL)
+
+/* Aliases kept for backward compatibility */
+#  define BIO_BIND_NORMAL                 0
+#  define BIO_BIND_REUSEADDR              BIO_SOCK_REUSEADDR
+#  define BIO_BIND_REUSEADDR_IF_UNUSED    BIO_SOCK_REUSEADDR
+#  define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
+#  define BIO_get_bind_mode(b)    BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
+# endif /* OPENSSL_NO_SOCK */
+
+# define BIO_do_connect(b)       BIO_do_handshake(b)
+# define BIO_do_accept(b)        BIO_do_handshake(b)
+
+# define BIO_do_handshake(b)     BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
+
+/* BIO_s_datagram(), BIO_s_fd(), BIO_s_socket(), BIO_s_accept() and BIO_s_connect() */
+# define BIO_set_fd(b,fd,c)      BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
+# define BIO_get_fd(b,c)         BIO_ctrl(b,BIO_C_GET_FD,0,(char *)(c))
+
+/* BIO_s_file() */
+# define BIO_set_fp(b,fp,c)      BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)(fp))
+# define BIO_get_fp(b,fpp)       BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)(fpp))
+
+/* BIO_s_fd() and BIO_s_file() */
+# define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
+# define BIO_tell(b)     (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
+
+/*
+ * name is cast to lose const, but might be better to route through a
+ * function so we can do it safely
+ */
+# ifdef CONST_STRICT
+/*
+ * If you are wondering why this isn't defined, its because CONST_STRICT is
+ * purely a compile-time kludge to allow const to be checked.
+ */
+int BIO_read_filename(BIO *b, const char *name);
+# else
+#  define BIO_read_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
+                BIO_CLOSE|BIO_FP_READ,(char *)(name))
+# endif
+# define BIO_write_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
+                BIO_CLOSE|BIO_FP_WRITE,name)
+# define BIO_append_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
+                BIO_CLOSE|BIO_FP_APPEND,name)
+# define BIO_rw_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
+                BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
+
+/*
+ * WARNING WARNING, this ups the reference count on the read bio of the SSL
+ * structure.  This is because the ssl read BIO is now pointed to by the
+ * next_bio field in the bio.  So when you free the BIO, make sure you are
+ * doing a BIO_free_all() to catch the underlying BIO.
+ */
+# define BIO_set_ssl(b,ssl,c)    BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)(ssl))
+# define BIO_get_ssl(b,sslp)     BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)(sslp))
+# define BIO_set_ssl_mode(b,client)      BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
+# define BIO_set_ssl_renegotiate_bytes(b,num) \
+        BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL)
+# define BIO_get_num_renegotiates(b) \
+        BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL)
+# define BIO_set_ssl_renegotiate_timeout(b,seconds) \
+        BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL)
+
+/* defined in evp.h */
+/* #define BIO_set_md(b,md)     BIO_ctrl(b,BIO_C_SET_MD,1,(char *)(md)) */
+
+# define BIO_get_mem_data(b,pp)  BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)(pp))
+# define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)(bm))
+# define BIO_get_mem_ptr(b,pp)   BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0, \
+                                          (char *)(pp))
+# define BIO_set_mem_eof_return(b,v) \
+                                BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
+
+/* For the BIO_f_buffer() type */
+# define BIO_get_buffer_num_lines(b)     BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
+# define BIO_set_buffer_size(b,size)     BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
+# define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
+# define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
+# define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
+
+/* Don't use the next one unless you know what you are doing :-) */
+# define BIO_dup_state(b,ret)    BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
+
+# define BIO_reset(b)            (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
+# define BIO_eof(b)              (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
+# define BIO_set_close(b,c)      (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
+# define BIO_get_close(b)        (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
+# define BIO_pending(b)          (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
+# define BIO_wpending(b)         (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
+/* ...pending macros have inappropriate return type */
+size_t BIO_ctrl_pending(BIO *b);
+size_t BIO_ctrl_wpending(BIO *b);
+# define BIO_flush(b)            (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
+# define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
+                                                   cbp)
+# define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
+
+/* For the BIO_f_buffer() type */
+# define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
+# define BIO_buffer_peek(b,s,l) BIO_ctrl(b,BIO_CTRL_PEEK,(l),(s))
+
+/* For BIO_s_bio() */
+# define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
+# define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
+# define BIO_make_bio_pair(b1,b2)   (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
+# define BIO_destroy_bio_pair(b)    (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
+# define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
+/* macros with inappropriate type -- but ...pending macros use int too: */
+# define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
+# define BIO_get_read_request(b)    (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
+size_t BIO_ctrl_get_write_guarantee(BIO *b);
+size_t BIO_ctrl_get_read_request(BIO *b);
+int BIO_ctrl_reset_read_request(BIO *b);
+
+/* ctrl macros for dgram */
+# define BIO_ctrl_dgram_connect(b,peer)  \
+                     (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)(peer))
+# define BIO_ctrl_set_connected(b,peer) \
+         (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, 0, (char *)(peer))
+# define BIO_dgram_recv_timedout(b) \
+         (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
+# define BIO_dgram_send_timedout(b) \
+         (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
+# define BIO_dgram_get_peer(b,peer) \
+         (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)(peer))
+# define BIO_dgram_set_peer(b,peer) \
+         (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)(peer))
+# define BIO_dgram_get_mtu_overhead(b) \
+         (unsigned int)BIO_ctrl((b), BIO_CTRL_DGRAM_GET_MTU_OVERHEAD, 0, NULL)
+
+/* ctrl macros for BIO_f_prefix */
+# define BIO_set_prefix(b,p) BIO_ctrl((b), BIO_CTRL_SET_PREFIX, 0, (void *)(p))
+# define BIO_set_indent(b,i) BIO_ctrl((b), BIO_CTRL_SET_INDENT, (i), NULL)
+# define BIO_get_indent(b) BIO_ctrl((b), BIO_CTRL_GET_INDENT, 0, NULL)
+
+#define BIO_get_ex_new_index(l, p, newf, dupf, freef) \
+    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, l, p, newf, dupf, freef)
+int BIO_set_ex_data(BIO *bio, int idx, void *data);
+void *BIO_get_ex_data(const BIO *bio, int idx);
+uint64_t BIO_number_read(BIO *bio);
+uint64_t BIO_number_written(BIO *bio);
+
+/* For BIO_f_asn1() */
+int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
+                        asn1_ps_func *prefix_free);
+int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
+                        asn1_ps_func **pprefix_free);
+int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
+                        asn1_ps_func *suffix_free);
+int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
+                        asn1_ps_func **psuffix_free);
+
+const BIO_METHOD *BIO_s_file(void);
+BIO *BIO_new_file(const char *filename, const char *mode);
+BIO *BIO_new_from_core_bio(OSSL_LIB_CTX *libctx, OSSL_CORE_BIO *corebio);
+# ifndef OPENSSL_NO_STDIO
+BIO *BIO_new_fp(FILE *stream, int close_flag);
+# endif
+BIO *BIO_new_ex(OSSL_LIB_CTX *libctx, const BIO_METHOD *method);
+BIO *BIO_new(const BIO_METHOD *type);
+int BIO_free(BIO *a);
+void BIO_set_data(BIO *a, void *ptr);
+void *BIO_get_data(BIO *a);
+void BIO_set_init(BIO *a, int init);
+int BIO_get_init(BIO *a);
+void BIO_set_shutdown(BIO *a, int shut);
+int BIO_get_shutdown(BIO *a);
+void BIO_vfree(BIO *a);
+int BIO_up_ref(BIO *a);
+int BIO_read(BIO *b, void *data, int dlen);
+int BIO_read_ex(BIO *b, void *data, size_t dlen, size_t *readbytes);
+int BIO_gets(BIO *bp, char *buf, int size);
+int BIO_get_line(BIO *bio, char *buf, int size);
+int BIO_write(BIO *b, const void *data, int dlen);
+int BIO_write_ex(BIO *b, const void *data, size_t dlen, size_t *written);
+int BIO_puts(BIO *bp, const char *buf);
+int BIO_indent(BIO *b, int indent, int max);
+long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);
+long BIO_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp);
+void *BIO_ptr_ctrl(BIO *bp, int cmd, long larg);
+long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg);
+BIO *BIO_push(BIO *b, BIO *append);
+BIO *BIO_pop(BIO *b);
+void BIO_free_all(BIO *a);
+BIO *BIO_find_type(BIO *b, int bio_type);
+BIO *BIO_next(BIO *b);
+void BIO_set_next(BIO *b, BIO *next);
+BIO *BIO_get_retry_BIO(BIO *bio, int *reason);
+int BIO_get_retry_reason(BIO *bio);
+void BIO_set_retry_reason(BIO *bio, int reason);
+BIO *BIO_dup_chain(BIO *in);
+
+int BIO_nread0(BIO *bio, char **buf);
+int BIO_nread(BIO *bio, char **buf, int num);
+int BIO_nwrite0(BIO *bio, char **buf);
+int BIO_nwrite(BIO *bio, char **buf, int num);
+
+const BIO_METHOD *BIO_s_mem(void);
+const BIO_METHOD *BIO_s_secmem(void);
+BIO *BIO_new_mem_buf(const void *buf, int len);
+# ifndef OPENSSL_NO_SOCK
+const BIO_METHOD *BIO_s_socket(void);
+const BIO_METHOD *BIO_s_connect(void);
+const BIO_METHOD *BIO_s_accept(void);
+# endif
+const BIO_METHOD *BIO_s_fd(void);
+const BIO_METHOD *BIO_s_log(void);
+const BIO_METHOD *BIO_s_bio(void);
+const BIO_METHOD *BIO_s_null(void);
+const BIO_METHOD *BIO_f_null(void);
+const BIO_METHOD *BIO_f_buffer(void);
+const BIO_METHOD *BIO_f_readbuffer(void);
+const BIO_METHOD *BIO_f_linebuffer(void);
+const BIO_METHOD *BIO_f_nbio_test(void);
+const BIO_METHOD *BIO_f_prefix(void);
+const BIO_METHOD *BIO_s_core(void);
+# ifndef OPENSSL_NO_DGRAM
+const BIO_METHOD *BIO_s_datagram(void);
+int BIO_dgram_non_fatal_error(int error);
+BIO *BIO_new_dgram(int fd, int close_flag);
+#  ifndef OPENSSL_NO_SCTP
+const BIO_METHOD *BIO_s_datagram_sctp(void);
+BIO *BIO_new_dgram_sctp(int fd, int close_flag);
+int BIO_dgram_is_sctp(BIO *bio);
+int BIO_dgram_sctp_notification_cb(BIO *b,
+                BIO_dgram_sctp_notification_handler_fn handle_notifications,
+                void *context);
+int BIO_dgram_sctp_wait_for_dry(BIO *b);
+int BIO_dgram_sctp_msg_waiting(BIO *b);
+#  endif
+# endif
+
+# ifndef OPENSSL_NO_SOCK
+int BIO_sock_should_retry(int i);
+int BIO_sock_non_fatal_error(int error);
+int BIO_socket_wait(int fd, int for_read, time_t max_time);
+# endif
+int BIO_wait(BIO *bio, time_t max_time, unsigned int nap_milliseconds);
+int BIO_do_connect_retry(BIO *bio, int timeout, int nap_milliseconds);
+
+int BIO_fd_should_retry(int i);
+int BIO_fd_non_fatal_error(int error);
+int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
+                void *u, const void *s, int len);
+int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u),
+                       void *u, const void *s, int len, int indent);
+int BIO_dump(BIO *b, const void *bytes, int len);
+int BIO_dump_indent(BIO *b, const void *bytes, int len, int indent);
+# ifndef OPENSSL_NO_STDIO
+int BIO_dump_fp(FILE *fp, const void *s, int len);
+int BIO_dump_indent_fp(FILE *fp, const void *s, int len, int indent);
+# endif
+int BIO_hex_string(BIO *out, int indent, int width, const void *data,
+                   int datalen);
+
+# ifndef OPENSSL_NO_SOCK
+BIO_ADDR *BIO_ADDR_new(void);
+int BIO_ADDR_rawmake(BIO_ADDR *ap, int family,
+                     const void *where, size_t wherelen, unsigned short port);
+void BIO_ADDR_free(BIO_ADDR *);
+void BIO_ADDR_clear(BIO_ADDR *ap);
+int BIO_ADDR_family(const BIO_ADDR *ap);
+int BIO_ADDR_rawaddress(const BIO_ADDR *ap, void *p, size_t *l);
+unsigned short BIO_ADDR_rawport(const BIO_ADDR *ap);
+char *BIO_ADDR_hostname_string(const BIO_ADDR *ap, int numeric);
+char *BIO_ADDR_service_string(const BIO_ADDR *ap, int numeric);
+char *BIO_ADDR_path_string(const BIO_ADDR *ap);
+
+const BIO_ADDRINFO *BIO_ADDRINFO_next(const BIO_ADDRINFO *bai);
+int BIO_ADDRINFO_family(const BIO_ADDRINFO *bai);
+int BIO_ADDRINFO_socktype(const BIO_ADDRINFO *bai);
+int BIO_ADDRINFO_protocol(const BIO_ADDRINFO *bai);
+const BIO_ADDR *BIO_ADDRINFO_address(const BIO_ADDRINFO *bai);
+void BIO_ADDRINFO_free(BIO_ADDRINFO *bai);
+
+enum BIO_hostserv_priorities {
+    BIO_PARSE_PRIO_HOST, BIO_PARSE_PRIO_SERV
+};
+int BIO_parse_hostserv(const char *hostserv, char **host, char **service,
+                       enum BIO_hostserv_priorities hostserv_prio);
+enum BIO_lookup_type {
+    BIO_LOOKUP_CLIENT, BIO_LOOKUP_SERVER
+};
+int BIO_lookup(const char *host, const char *service,
+               enum BIO_lookup_type lookup_type,
+               int family, int socktype, BIO_ADDRINFO **res);
+int BIO_lookup_ex(const char *host, const char *service,
+                  int lookup_type, int family, int socktype, int protocol,
+                  BIO_ADDRINFO **res);
+int BIO_sock_error(int sock);
+int BIO_socket_ioctl(int fd, long type, void *arg);
+int BIO_socket_nbio(int fd, int mode);
+int BIO_sock_init(void);
+# ifndef OPENSSL_NO_DEPRECATED_1_1_0
+#  define BIO_sock_cleanup() while(0) continue
+# endif
+int BIO_set_tcp_ndelay(int sock, int turn_on);
+# ifndef OPENSSL_NO_DEPRECATED_1_1_0
+OSSL_DEPRECATEDIN_1_1_0 struct hostent *BIO_gethostbyname(const char *name);
+OSSL_DEPRECATEDIN_1_1_0 int BIO_get_port(const char *str, unsigned short *port_ptr);
+OSSL_DEPRECATEDIN_1_1_0 int BIO_get_host_ip(const char *str, unsigned char *ip);
+OSSL_DEPRECATEDIN_1_1_0 int BIO_get_accept_socket(char *host_port, int mode);
+OSSL_DEPRECATEDIN_1_1_0 int BIO_accept(int sock, char **ip_port);
+# endif
+
+union BIO_sock_info_u {
+    BIO_ADDR *addr;
+};
+enum BIO_sock_info_type {
+    BIO_SOCK_INFO_ADDRESS
+};
+int BIO_sock_info(int sock,
+                  enum BIO_sock_info_type type, union BIO_sock_info_u *info);
+
+#  define BIO_SOCK_REUSEADDR    0x01
+#  define BIO_SOCK_V6_ONLY      0x02
+#  define BIO_SOCK_KEEPALIVE    0x04
+#  define BIO_SOCK_NONBLOCK     0x08
+#  define BIO_SOCK_NODELAY      0x10
+
+int BIO_socket(int domain, int socktype, int protocol, int options);
+int BIO_connect(int sock, const BIO_ADDR *addr, int options);
+int BIO_bind(int sock, const BIO_ADDR *addr, int options);
+int BIO_listen(int sock, const BIO_ADDR *addr, int options);
+int BIO_accept_ex(int accept_sock, BIO_ADDR *addr, int options);
+int BIO_closesocket(int sock);
+
+BIO *BIO_new_socket(int sock, int close_flag);
+BIO *BIO_new_connect(const char *host_port);
+BIO *BIO_new_accept(const char *host_port);
+# endif /* OPENSSL_NO_SOCK*/
+
+BIO *BIO_new_fd(int fd, int close_flag);
+
+int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
+                     BIO **bio2, size_t writebuf2);
+/*
+ * If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
+ * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. Size 0 uses default
+ * value.
+ */
+
+void BIO_copy_next_retry(BIO *b);
+
+/*
+ * long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
+ */
+
+# define ossl_bio__attr__(x)
+# if defined(__GNUC__) && defined(__STDC_VERSION__) \
+    && !defined(__APPLE__)
+    /*
+     * Because we support the 'z' modifier, which made its appearance in C99,
+     * we can't use __attribute__ with pre C99 dialects.
+     */
+#  if __STDC_VERSION__ >= 199901L
+#   undef ossl_bio__attr__
+#   define ossl_bio__attr__ __attribute__
+#   if __GNUC__*10 + __GNUC_MINOR__ >= 44
+#    define ossl_bio__printf__ __gnu_printf__
+#   else
+#    define ossl_bio__printf__ __printf__
+#   endif
+#  endif
+# endif
+int BIO_printf(BIO *bio, const char *format, ...)
+ossl_bio__attr__((__format__(ossl_bio__printf__, 2, 3)));
+int BIO_vprintf(BIO *bio, const char *format, va_list args)
+ossl_bio__attr__((__format__(ossl_bio__printf__, 2, 0)));
+int BIO_snprintf(char *buf, size_t n, const char *format, ...)
+ossl_bio__attr__((__format__(ossl_bio__printf__, 3, 4)));
+int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
+ossl_bio__attr__((__format__(ossl_bio__printf__, 3, 0)));
+# undef ossl_bio__attr__
+# undef ossl_bio__printf__
+
+
+BIO_METHOD *BIO_meth_new(int type, const char *name);
+void BIO_meth_free(BIO_METHOD *biom);
+int (*BIO_meth_get_write(const BIO_METHOD *biom)) (BIO *, const char *, int);
+int (*BIO_meth_get_write_ex(const BIO_METHOD *biom)) (BIO *, const char *, size_t,
+                                                size_t *);
+int BIO_meth_set_write(BIO_METHOD *biom,
+                       int (*write) (BIO *, const char *, int));
+int BIO_meth_set_write_ex(BIO_METHOD *biom,
+                       int (*bwrite) (BIO *, const char *, size_t, size_t *));
+int (*BIO_meth_get_read(const BIO_METHOD *biom)) (BIO *, char *, int);
+int (*BIO_meth_get_read_ex(const BIO_METHOD *biom)) (BIO *, char *, size_t, size_t *);
+int BIO_meth_set_read(BIO_METHOD *biom,
+                      int (*read) (BIO *, char *, int));
+int BIO_meth_set_read_ex(BIO_METHOD *biom,
+                         int (*bread) (BIO *, char *, size_t, size_t *));
+int (*BIO_meth_get_puts(const BIO_METHOD *biom)) (BIO *, const char *);
+int BIO_meth_set_puts(BIO_METHOD *biom,
+                      int (*puts) (BIO *, const char *));
+int (*BIO_meth_get_gets(const BIO_METHOD *biom)) (BIO *, char *, int);
+int BIO_meth_set_gets(BIO_METHOD *biom,
+                      int (*gets) (BIO *, char *, int));
+long (*BIO_meth_get_ctrl(const BIO_METHOD *biom)) (BIO *, int, long, void *);
+int BIO_meth_set_ctrl(BIO_METHOD *biom,
+                      long (*ctrl) (BIO *, int, long, void *));
+int (*BIO_meth_get_create(const BIO_METHOD *bion)) (BIO *);
+int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *));
+int (*BIO_meth_get_destroy(const BIO_METHOD *biom)) (BIO *);
+int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *));
+long (*BIO_meth_get_callback_ctrl(const BIO_METHOD *biom))
+                                 (BIO *, int, BIO_info_cb *);
+int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
+                               long (*callback_ctrl) (BIO *, int,
+                                                      BIO_info_cb *));
+
+# ifdef  __cplusplus
+}
+# endif
+#endif