9c1215a3c1
This allows developer to glue DLL built with VC into their application compiled with Borland C. Reviewed-by: Andy Polyakov <appro@openssl.org>
129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
#define APPLINK_STDIN 1
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#define APPLINK_STDOUT 2
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#define APPLINK_STDERR 3
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#define APPLINK_FPRINTF 4
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#define APPLINK_FGETS 5
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#define APPLINK_FREAD 6
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#define APPLINK_FWRITE 7
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#define APPLINK_FSETMOD 8
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#define APPLINK_FEOF 9
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#define APPLINK_FCLOSE 10 /* should not be used */
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#define APPLINK_FOPEN 11 /* solely for completeness */
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#define APPLINK_FSEEK 12
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#define APPLINK_FTELL 13
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#define APPLINK_FFLUSH 14
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#define APPLINK_FERROR 15
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#define APPLINK_CLEARERR 16
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#define APPLINK_FILENO 17 /* to be used with below */
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#define APPLINK_OPEN 18 /* formally can't be used, as flags can vary */
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#define APPLINK_READ 19
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#define APPLINK_WRITE 20
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#define APPLINK_LSEEK 21
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#define APPLINK_CLOSE 22
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#define APPLINK_MAX 22 /* always same as last macro */
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#ifndef APPMACROS_ONLY
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# include <stdio.h>
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# include <io.h>
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# include <fcntl.h>
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static void *app_stdin(void)
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{
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return stdin;
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}
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static void *app_stdout(void)
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{
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return stdout;
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}
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static void *app_stderr(void)
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{
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return stderr;
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}
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static int app_feof(FILE *fp)
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{
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return feof(fp);
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}
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static int app_ferror(FILE *fp)
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{
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return ferror(fp);
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}
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static void app_clearerr(FILE *fp)
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{
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clearerr(fp);
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}
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static int app_fileno(FILE *fp)
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{
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return _fileno(fp);
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}
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static int app_fsetmod(FILE *fp, char mod)
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{
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return _setmode(_fileno(fp), mod == 'b' ? _O_BINARY : _O_TEXT);
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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__declspec(dllexport)
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void **
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# if defined(__BORLANDC__)
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/*
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* __stdcall appears to be the only way to get the name
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* decoration right with Borland C. Otherwise it works
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* purely incidentally, as we pass no parameters.
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*/
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__stdcall
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# else
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__cdecl
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# endif
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OPENSSL_Applink(void)
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{
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static int once = 1;
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static void *OPENSSL_ApplinkTable[APPLINK_MAX + 1] =
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{ (void *)APPLINK_MAX };
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if (once) {
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OPENSSL_ApplinkTable[APPLINK_STDIN] = app_stdin;
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OPENSSL_ApplinkTable[APPLINK_STDOUT] = app_stdout;
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OPENSSL_ApplinkTable[APPLINK_STDERR] = app_stderr;
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OPENSSL_ApplinkTable[APPLINK_FPRINTF] = fprintf;
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OPENSSL_ApplinkTable[APPLINK_FGETS] = fgets;
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OPENSSL_ApplinkTable[APPLINK_FREAD] = fread;
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OPENSSL_ApplinkTable[APPLINK_FWRITE] = fwrite;
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OPENSSL_ApplinkTable[APPLINK_FSETMOD] = app_fsetmod;
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OPENSSL_ApplinkTable[APPLINK_FEOF] = app_feof;
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OPENSSL_ApplinkTable[APPLINK_FCLOSE] = fclose;
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OPENSSL_ApplinkTable[APPLINK_FOPEN] = fopen;
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OPENSSL_ApplinkTable[APPLINK_FSEEK] = fseek;
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OPENSSL_ApplinkTable[APPLINK_FTELL] = ftell;
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OPENSSL_ApplinkTable[APPLINK_FFLUSH] = fflush;
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OPENSSL_ApplinkTable[APPLINK_FERROR] = app_ferror;
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OPENSSL_ApplinkTable[APPLINK_CLEARERR] = app_clearerr;
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OPENSSL_ApplinkTable[APPLINK_FILENO] = app_fileno;
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OPENSSL_ApplinkTable[APPLINK_OPEN] = _open;
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OPENSSL_ApplinkTable[APPLINK_READ] = _read;
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OPENSSL_ApplinkTable[APPLINK_WRITE] = _write;
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OPENSSL_ApplinkTable[APPLINK_LSEEK] = _lseek;
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OPENSSL_ApplinkTable[APPLINK_CLOSE] = _close;
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once = 0;
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}
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return OPENSSL_ApplinkTable;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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