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/*
* Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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
*/
#include "e_os.h"
#include "internal/sockets.h"
#include "internal/refcount.h"
/* BEGIN BIO_ADDRINFO/BIO_ADDR stuff. */
#ifndef OPENSSL_NO_SOCK
/*
* Throughout this file and b_addr.c, the existence of the macro
* AI_PASSIVE is used to detect the availability of struct addrinfo,
* getnameinfo() and getaddrinfo(). If that macro doesn't exist,
* we use our own implementation instead.
*/
/*
* It's imperative that these macros get defined before openssl/bio.h gets
* included. Otherwise, the AI_PASSIVE hack will not work properly.
* For clarity, we check for internal/cryptlib.h since it's a common header
* that also includes bio.h.
*/
# ifdef OSSL_INTERNAL_CRYPTLIB_H
# error internal/cryptlib.h included before bio_local.h
# endif
# ifdef HEADER_BIO_H
# error openssl/bio.h included before bio_local.h
# endif
/*
* Undefine AF_UNIX on systems that define it but don't support it.
*/
# if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_VMS)
# undef AF_UNIX
# endif
# ifdef AI_PASSIVE
/*
* There's a bug in VMS C header file netdb.h, where struct addrinfo
* always is the P32 variant, but the functions that handle that structure,
* such as getaddrinfo() and freeaddrinfo() adapt to the initial pointer
* size. The easiest workaround is to force struct addrinfo to be the
* 64-bit variant when compiling in P64 mode.
*/
# if defined(OPENSSL_SYS_VMS) && __INITIAL_POINTER_SIZE == 64
# define addrinfo __addrinfo64
# endif
# define bio_addrinfo_st addrinfo
# define bai_family ai_family
# define bai_socktype ai_socktype
# define bai_protocol ai_protocol
# define bai_addrlen ai_addrlen
# define bai_addr ai_addr
# define bai_next ai_next
# else
struct bio_addrinfo_st {
int bai_family;
int bai_socktype;
int bai_protocol;
size_t bai_addrlen;
struct sockaddr *bai_addr;
struct bio_addrinfo_st *bai_next;
};
# endif
union bio_addr_st {
struct sockaddr sa;
# ifdef AF_INET6
struct sockaddr_in6 s_in6;
# endif
struct sockaddr_in s_in;
# ifdef AF_UNIX
struct sockaddr_un s_un;
# endif
};
#endif
/* END BIO_ADDRINFO/BIO_ADDR stuff. */
#include "internal/cryptlib.h"
#include "internal/bio.h"
typedef struct bio_f_buffer_ctx_struct {
/*-
* Buffers are setup like this:
*
* <---------------------- size ----------------------->
* +---------------------------------------------------+
* | consumed | remaining | free space |
* +---------------------------------------------------+
* <-- off --><------- len ------->
*/
/*- 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;
struct bio_st {
const BIO_METHOD *method;
/* bio, mode, argp, argi, argl, ret */
BIO_callback_fn callback;
BIO_callback_fn_ex callback_ex;
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 */
CRYPTO_REF_COUNT references;
uint64_t num_read;
uint64_t num_write;
CRYPTO_EX_DATA ex_data;
CRYPTO_RWLOCK *lock;
};
#ifndef OPENSSL_NO_SOCK
# ifdef OPENSSL_SYS_VMS
typedef unsigned int socklen_t;
# endif
extern CRYPTO_RWLOCK *bio_lookup_lock;
int BIO_ADDR_make(BIO_ADDR *ap, const struct sockaddr *sa);
const struct sockaddr *BIO_ADDR_sockaddr(const BIO_ADDR *ap);
struct sockaddr *BIO_ADDR_sockaddr_noconst(BIO_ADDR *ap);
socklen_t BIO_ADDR_sockaddr_size(const BIO_ADDR *ap);
socklen_t BIO_ADDRINFO_sockaddr_size(const BIO_ADDRINFO *bai);
const struct sockaddr *BIO_ADDRINFO_sockaddr(const BIO_ADDRINFO *bai);
#endif
extern CRYPTO_RWLOCK *bio_type_lock;
void bio_sock_cleanup_int(void);
#if BIO_FLAGS_UPLINK==0
/* Shortcut UPLINK calls on most platforms... */
# define UP_stdin stdin
# define UP_stdout stdout
# define UP_stderr stderr
# define UP_fprintf fprintf
# define UP_fgets fgets
# define UP_fread fread
# define UP_fwrite fwrite
# undef UP_fsetmod
# define UP_feof feof
# define UP_fclose fclose
# define UP_fopen fopen
# define UP_fseek fseek
# define UP_ftell ftell
# define UP_fflush fflush
# define UP_ferror ferror
# ifdef _WIN32
# define UP_fileno _fileno
# define UP_open _open
# define UP_read _read
# define UP_write _write
# define UP_lseek _lseek
# define UP_close _close
# else
# define UP_fileno fileno
# define UP_open open
# define UP_read read
# define UP_write write
# define UP_lseek lseek
# define UP_close close
# endif
#endif
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