1 /* 2 * Copyright 2004-2023 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #define APPLINK_STDIN 1 11 #define APPLINK_STDOUT 2 12 #define APPLINK_STDERR 3 13 #define APPLINK_FPRINTF 4 14 #define APPLINK_FGETS 5 15 #define APPLINK_FREAD 6 16 #define APPLINK_FWRITE 7 17 #define APPLINK_FSETMOD 8 18 #define APPLINK_FEOF 9 19 #define APPLINK_FCLOSE 10 /* should not be used */ 20 21 #define APPLINK_FOPEN 11 /* solely for completeness */ 22 #define APPLINK_FSEEK 12 23 #define APPLINK_FTELL 13 24 #define APPLINK_FFLUSH 14 25 #define APPLINK_FERROR 15 26 #define APPLINK_CLEARERR 16 27 #define APPLINK_FILENO 17 /* to be used with below */ 28 29 #define APPLINK_OPEN 18 /* formally can't be used, as flags can vary */ 30 #define APPLINK_READ 19 31 #define APPLINK_WRITE 20 32 #define APPLINK_LSEEK 21 33 #define APPLINK_CLOSE 22 34 #define APPLINK_MAX 22 /* always same as last macro */ 35 36 #ifndef APPMACROS_ONLY 37 38 /* 39 * Normally, do not define APPLINK_NO_INCLUDES. Define it if you are using 40 * symbol preprocessing and do not want the preprocessing to affect the 41 * following included header files. You will need to put these 42 * include lines somewhere in the file that is including applink.c. 43 */ 44 #ifndef APPLINK_NO_INCLUDES 45 #include <stdio.h> 46 #include <io.h> 47 #include <fcntl.h> 48 #endif 49 50 #ifdef __BORLANDC__ 51 /* _lseek in <io.h> is a function-like macro so we can't take its address */ 52 #undef _lseek 53 #define _lseek lseek 54 #endif 55 app_stdin(void)56static void *app_stdin(void) 57 { 58 return stdin; 59 } 60 app_stdout(void)61static void *app_stdout(void) 62 { 63 return stdout; 64 } 65 app_stderr(void)66static void *app_stderr(void) 67 { 68 return stderr; 69 } 70 app_feof(FILE * fp)71static int app_feof(FILE *fp) 72 { 73 return feof(fp); 74 } 75 app_ferror(FILE * fp)76static int app_ferror(FILE *fp) 77 { 78 return ferror(fp); 79 } 80 app_clearerr(FILE * fp)81static void app_clearerr(FILE *fp) 82 { 83 clearerr(fp); 84 } 85 app_fileno(FILE * fp)86static int app_fileno(FILE *fp) 87 { 88 return _fileno(fp); 89 } 90 app_fsetmod(FILE * fp,char mod)91static int app_fsetmod(FILE *fp, char mod) 92 { 93 return _setmode(_fileno(fp), mod == 'b' ? _O_BINARY : _O_TEXT); 94 } 95 96 #ifdef __cplusplus 97 extern "C" { 98 #endif 99 100 __declspec(dllexport) void ** 101 #if defined(__BORLANDC__) 102 /* 103 * __stdcall appears to be the only way to get the name 104 * decoration right with Borland C. Otherwise it works 105 * purely incidentally, as we pass no parameters. 106 */ 107 __stdcall 108 #else 109 __cdecl 110 #endif OPENSSL_Applink(void)111 OPENSSL_Applink(void) 112 { 113 static int once = 1; 114 static void *OPENSSL_ApplinkTable[APPLINK_MAX + 1] = { (void *)APPLINK_MAX }; 115 116 if (once) { 117 OPENSSL_ApplinkTable[APPLINK_STDIN] = app_stdin; 118 OPENSSL_ApplinkTable[APPLINK_STDOUT] = app_stdout; 119 OPENSSL_ApplinkTable[APPLINK_STDERR] = app_stderr; 120 OPENSSL_ApplinkTable[APPLINK_FPRINTF] = fprintf; 121 OPENSSL_ApplinkTable[APPLINK_FGETS] = fgets; 122 OPENSSL_ApplinkTable[APPLINK_FREAD] = fread; 123 OPENSSL_ApplinkTable[APPLINK_FWRITE] = fwrite; 124 OPENSSL_ApplinkTable[APPLINK_FSETMOD] = app_fsetmod; 125 OPENSSL_ApplinkTable[APPLINK_FEOF] = app_feof; 126 OPENSSL_ApplinkTable[APPLINK_FCLOSE] = fclose; 127 128 OPENSSL_ApplinkTable[APPLINK_FOPEN] = fopen; 129 OPENSSL_ApplinkTable[APPLINK_FSEEK] = fseek; 130 OPENSSL_ApplinkTable[APPLINK_FTELL] = ftell; 131 OPENSSL_ApplinkTable[APPLINK_FFLUSH] = fflush; 132 OPENSSL_ApplinkTable[APPLINK_FERROR] = app_ferror; 133 OPENSSL_ApplinkTable[APPLINK_CLEARERR] = app_clearerr; 134 OPENSSL_ApplinkTable[APPLINK_FILENO] = app_fileno; 135 136 OPENSSL_ApplinkTable[APPLINK_OPEN] = _open; 137 OPENSSL_ApplinkTable[APPLINK_READ] = _read; 138 OPENSSL_ApplinkTable[APPLINK_WRITE] = _write; 139 OPENSSL_ApplinkTable[APPLINK_LSEEK] = _lseek; 140 OPENSSL_ApplinkTable[APPLINK_CLOSE] = _close; 141 142 once = 0; 143 } 144 145 return OPENSSL_ApplinkTable; 146 } 147 148 #ifdef __cplusplus 149 } 150 #endif 151 #endif 152