1 /* 2 * Copyright 2016-2021 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 #include <string.h> 11 #include <stdlib.h> /* For NULL */ 12 #include <openssl/macros.h> /* For NON_EMPTY_TRANSLATION_UNIT */ 13 #include <openssl/e_os2.h> 14 #include "simpledynamic.h" 15 16 #if defined(DSO_DLFCN) || defined(DSO_VMS) 17 18 int sd_load(const char *filename, SD *lib, int type) 19 { 20 int dl_flags = type; 21 #ifdef _AIX 22 if (filename[strlen(filename) - 1] == ')') 23 dl_flags |= RTLD_MEMBER; 24 #endif 25 *lib = dlopen(filename, dl_flags); 26 return *lib == NULL ? 0 : 1; 27 } 28 29 int sd_sym(SD lib, const char *symname, SD_SYM *sym) 30 { 31 *sym = dlsym(lib, symname); 32 return *sym != NULL; 33 } 34 35 int sd_close(SD lib) 36 { 37 return dlclose(lib) != 0 ? 0 : 1; 38 } 39 40 const char *sd_error(void) 41 { 42 return dlerror(); 43 } 44 45 #elif defined(DSO_WIN32) 46 47 int sd_load(const char *filename, SD *lib, ossl_unused int type) 48 { 49 *lib = LoadLibraryA(filename); 50 return *lib == NULL ? 0 : 1; 51 } 52 53 int sd_sym(SD lib, const char *symname, SD_SYM *sym) 54 { 55 *sym = (SD_SYM)GetProcAddress(lib, symname); 56 return *sym != NULL; 57 } 58 59 int sd_close(SD lib) 60 { 61 return FreeLibrary(lib) == 0 ? 0 : 1; 62 } 63 64 const char *sd_error(void) 65 { 66 static char buffer[255]; 67 68 buffer[0] = '\0'; 69 FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0, 70 buffer, sizeof(buffer), NULL); 71 return buffer; 72 } 73 74 #else 75 76 NON_EMPTY_TRANSLATION_UNIT 77 78 #endif 79