ms/applink.c

   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