186 lines
5.4 KiB
C
186 lines
5.4 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
#define USE_SOCKETS
|
|
#include "e_os.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 HEADER_CRYPTLIB_H
|
|
# error internal/cryptlib.h included before bio_lcl.h
|
|
# endif
|
|
# ifdef HEADER_BIO_H
|
|
# error openssl/bio.h included before bio_lcl.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 */
|
|
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;
|
|
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
|
|
|
|
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
|
|
|