OpenSSL  1.0.1c
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applink.c
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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 
32 static void *app_stdin(void) { return stdin; }
33 static void *app_stdout(void) { return stdout; }
34 static void *app_stderr(void) { return stderr; }
35 static int app_feof(FILE *fp) { return feof(fp); }
36 static int app_ferror(FILE *fp) { return ferror(fp); }
37 static void app_clearerr(FILE *fp) { clearerr(fp); }
38 static int app_fileno(FILE *fp) { return _fileno(fp); }
39 static int app_fsetmod(FILE *fp,char mod)
40 { return _setmode (_fileno(fp),mod=='b'?_O_BINARY:_O_TEXT); }
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 __declspec(dllexport)
47 void **
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
55 OPENSSL_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
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