1#define APPLINK_STDIN	1
2#define APPLINK_STDOUT	2
3#define APPLINK_STDERR	3
4#define APPLINK_FPRINTF	4
5#define APPLINK_FGETS	5
6#define APPLINK_FREAD	6
7#define APPLINK_FWRITE	7
8#define APPLINK_FSETMOD	8
9#define APPLINK_FEOF	9
10#define APPLINK_FCLOSE 	10	/* should not be used */
11
12#define APPLINK_FOPEN	11	/* solely for completeness */
13#define APPLINK_FSEEK	12
14#define APPLINK_FTELL	13
15#define APPLINK_FFLUSH	14
16#define APPLINK_FERROR	15
17#define APPLINK_CLEARERR 16
18#define APPLINK_FILENO	17	/* to be used with below */
19
20#define APPLINK_OPEN	18	/* formally can't be used, as flags can vary */
21#define APPLINK_READ	19
22#define APPLINK_WRITE	20
23#define APPLINK_LSEEK	21
24#define APPLINK_CLOSE	22
25#define APPLINK_MAX	22	/* always same as last macro */
26
27#ifndef APPMACROS_ONLY
28#include <stdio.h>
29#include <io.h>
30#include <fcntl.h>
31
32static void *app_stdin(void)		{ return stdin;  }
33static void *app_stdout(void)		{ return stdout; }
34static void *app_stderr(void)		{ return stderr; }
35static int   app_feof(FILE *fp)		{ return feof(fp); }
36static int   app_ferror(FILE *fp)	{ return ferror(fp); }
37static void  app_clearerr(FILE *fp)	{ clearerr(fp); }
38static int   app_fileno(FILE *fp)	{ return _fileno(fp); }
39static int   app_fsetmod(FILE *fp,char mod)
40{ return _setmode (_fileno(fp),mod=='b'?_O_BINARY:_O_TEXT); }
41
42#ifdef __cplusplus
43extern "C" {
44#endif
45
46__declspec(dllexport)
47void **
48#if defined(__BORLANDC__)
49__stdcall	/* __stdcall appears to be the only way to get the name
50		 * decoration right with Borland C. Otherwise it works
51		 * purely incidentally, as we pass no parameters. */
52#else
53__cdecl
54#endif
55OPENSSL_Applink(void)
56{ static int once=1;
57  static void *OPENSSL_ApplinkTable[APPLINK_MAX+1]={(void *)APPLINK_MAX};
58
59    if (once)
60    {	OPENSSL_ApplinkTable[APPLINK_STDIN]	= app_stdin;
61	OPENSSL_ApplinkTable[APPLINK_STDOUT]	= app_stdout;
62	OPENSSL_ApplinkTable[APPLINK_STDERR]	= app_stderr;
63	OPENSSL_ApplinkTable[APPLINK_FPRINTF]	= fprintf;
64	OPENSSL_ApplinkTable[APPLINK_FGETS]	= fgets;
65	OPENSSL_ApplinkTable[APPLINK_FREAD]	= fread;
66	OPENSSL_ApplinkTable[APPLINK_FWRITE]	= fwrite;
67	OPENSSL_ApplinkTable[APPLINK_FSETMOD]	= app_fsetmod;
68	OPENSSL_ApplinkTable[APPLINK_FEOF]	= app_feof;
69	OPENSSL_ApplinkTable[APPLINK_FCLOSE]	= fclose;
70
71	OPENSSL_ApplinkTable[APPLINK_FOPEN]	= fopen;
72	OPENSSL_ApplinkTable[APPLINK_FSEEK]	= fseek;
73	OPENSSL_ApplinkTable[APPLINK_FTELL]	= ftell;
74	OPENSSL_ApplinkTable[APPLINK_FFLUSH]	= fflush;
75	OPENSSL_ApplinkTable[APPLINK_FERROR]	= app_ferror;
76	OPENSSL_ApplinkTable[APPLINK_CLEARERR]	= app_clearerr;
77	OPENSSL_ApplinkTable[APPLINK_FILENO]	= app_fileno;
78
79	OPENSSL_ApplinkTable[APPLINK_OPEN]	= _open;
80	OPENSSL_ApplinkTable[APPLINK_READ]	= _read;
81	OPENSSL_ApplinkTable[APPLINK_WRITE]	= _write;
82	OPENSSL_ApplinkTable[APPLINK_LSEEK]	= _lseek;
83	OPENSSL_ApplinkTable[APPLINK_CLOSE]	= _close;
84
85	once = 0;
86    }
87
88  return OPENSSL_ApplinkTable;
89}
90
91#ifdef __cplusplus
92}
93#endif
94#endif
95