/*

 * Copyright 2004-2016 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 APPLINK_STDIN   1

#define APPLINK_STDOUT  2

#define APPLINK_STDERR  3

#define APPLINK_FPRINTF 4

#define APPLINK_FGETS   5

#define APPLINK_FREAD   6

#define APPLINK_FWRITE  7

#define APPLINK_FSETMOD 8

#define APPLINK_FEOF    9

#define APPLINK_FCLOSE  10      /* should not be used */

#define APPLINK_FOPEN   11      /* solely for completeness */

#define APPLINK_FSEEK   12

#define APPLINK_FTELL   13

#define APPLINK_FFLUSH  14

#define APPLINK_FERROR  15

#define APPLINK_CLEARERR 16

#define APPLINK_FILENO  17      /* to be used with below */

#define APPLINK_OPEN    18      /* formally can't be used, as flags can vary */

#define APPLINK_READ    19

#define APPLINK_WRITE   20

#define APPLINK_LSEEK   21

#define APPLINK_CLOSE   22

#define APPLINK_MAX     22      /* always same as last macro */

#ifndef APPMACROS_ONLY

# include <stdio.h>

# include <io.h>

# include <fcntl.h>

static void *app_stdin(void)

{

    return stdin;

}

static void *app_stdout(void)

{

    return stdout;

}

static void *app_stderr(void)

{

    return stderr;

}

static int app_feof(FILE *fp)

{

    return feof(fp);

}

static int app_ferror(FILE *fp)

{

    return ferror(fp);

}

static void app_clearerr(FILE *fp)

{

    clearerr(fp);

}

static int app_fileno(FILE *fp)

{

    return _fileno(fp);

}

static int app_fsetmod(FILE *fp, char mod)

{

    return _setmode(_fileno(fp), mod == 'b' ? _O_BINARY : _O_TEXT);

}

#ifdef __cplusplus

extern "C" {

#endif

__declspec(dllexport)

void **

# if defined(__BORLANDC__)

/*

 * __stdcall appears to be the only way to get the name

 * decoration right with Borland C. Otherwise it works

 * purely incidentally, as we pass no parameters.

 */

__stdcall

# else

__cdecl

# endif

OPENSSL_Applink(void)

{

    static int once = 1;

    static void *OPENSSL_ApplinkTable[APPLINK_MAX + 1] =

        { (void *)APPLINK_MAX };

    if (once) {

        OPENSSL_ApplinkTable[APPLINK_STDIN] = app_stdin;

        OPENSSL_ApplinkTable[APPLINK_STDOUT] = app_stdout;

        OPENSSL_ApplinkTable[APPLINK_STDERR] = app_stderr;

        OPENSSL_ApplinkTable[APPLINK_FPRINTF] = fprintf;

        OPENSSL_ApplinkTable[APPLINK_FGETS] = fgets;

        OPENSSL_ApplinkTable[APPLINK_FREAD] = fread;

        OPENSSL_ApplinkTable[APPLINK_FWRITE] = fwrite;

        OPENSSL_ApplinkTable[APPLINK_FSETMOD] = app_fsetmod;

        OPENSSL_ApplinkTable[APPLINK_FEOF] = app_feof;

        OPENSSL_ApplinkTable[APPLINK_FCLOSE] = fclose;

        OPENSSL_ApplinkTable[APPLINK_FOPEN] = fopen;

        OPENSSL_ApplinkTable[APPLINK_FSEEK] = fseek;

        OPENSSL_ApplinkTable[APPLINK_FTELL] = ftell;

        OPENSSL_ApplinkTable[APPLINK_FFLUSH] = fflush;

        OPENSSL_ApplinkTable[APPLINK_FERROR] = app_ferror;

        OPENSSL_ApplinkTable[APPLINK_CLEARERR] = app_clearerr;

        OPENSSL_ApplinkTable[APPLINK_FILENO] = app_fileno;

        OPENSSL_ApplinkTable[APPLINK_OPEN] = _open;

        OPENSSL_ApplinkTable[APPLINK_READ] = _read;

        OPENSSL_ApplinkTable[APPLINK_WRITE] = _write;

        OPENSSL_ApplinkTable[APPLINK_LSEEK] = _lseek;

        OPENSSL_ApplinkTable[APPLINK_CLOSE] = _close;

        once = 0;

    }

    return OPENSSL_ApplinkTable;

}

#ifdef __cplusplus

}

#endif

#endif