-struct bio_st
- {
- BIO_METHOD *method;
- /* bio, mode, argp, argi, argl, ret */
- long (*callback)(struct bio_st *,int,const char *,int, long,long);
- char *cb_arg; /* first argument for the callback */
-
- int init;
- int shutdown;
- int flags; /* extra storage */
- int retry_reason;
- int num;
- void *ptr;
- struct bio_st *next_bio; /* used by filter BIOs */
- struct bio_st *prev_bio; /* used by filter BIOs */
- int references;
- unsigned long num_read;
- unsigned long num_write;
-
- CRYPTO_EX_DATA ex_data;
- };
-
-DECLARE_STACK_OF(BIO)
-
-typedef struct bio_f_buffer_ctx_struct
- {
- /* BIO *bio; */ /* this is now in the BIO struct */
- int ibuf_size; /* how big is the input buffer */
- int obuf_size; /* how big is the output buffer */
-
- char *ibuf; /* the char array */
- int ibuf_len; /* how many bytes are in it */
- int ibuf_off; /* write/read offset */
-
- char *obuf; /* the char array */
- int obuf_len; /* how many bytes are in it */
- int obuf_off; /* write/read offset */
- } BIO_F_BUFFER_CTX;
-
-/* connect BIO stuff */
-#define BIO_CONN_S_BEFORE 1
-#define BIO_CONN_S_GET_IP 2
-#define BIO_CONN_S_GET_PORT 3
-#define BIO_CONN_S_CREATE_SOCKET 4
-#define BIO_CONN_S_CONNECT 5
-#define BIO_CONN_S_OK 6
-#define BIO_CONN_S_BLOCKED_CONNECT 7
-#define BIO_CONN_S_NBIO 8
-/*#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_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
-#define BIO_get_app_data(s) BIO_get_ex_data(s,0)
-
-/* BIO_s_connect() and BIO_s_socks4a_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_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
-#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
-#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
-#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
-#define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
-#define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3)
-
-
-#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
-
-/* BIO_s_accept_socket() */
-#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
-#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
-/* #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,1,(n)?"a":NULL)
-#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
-
-#define BIO_BIND_NORMAL 0
-#define BIO_BIND_REUSEADDR_IF_UNUSED 1
-#define BIO_BIND_REUSEADDR 2
-#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
-#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
-
-#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_proxy_client() */
-#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
-#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
-/* BIO_set_nbio(b,n) */
-#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
-/* BIO *BIO_get_filter_bio(BIO *bio); */
-#define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
-#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
-#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
-
-#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
-#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
-#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
-#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
-
-#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)
-
-#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)
-
-#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
+/*
+ * #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)
+
+/* BIO_s_accept() and BIO_s_connect() */
+# define BIO_do_connect(b) BIO_do_handshake(b)
+# define BIO_do_accept(b) BIO_do_handshake(b)
+# endif /* OPENSSL_NO_SOCK */
+
+# 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