test/simpledynamic.c

   1 /*
   2  * Copyright 2016-2020 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 <stdlib.h>              /* For NULL */
  11 #include <openssl/macros.h>      /* For NON_EMPTY_TRANSLATION_UNIT */
  12 #include "simpledynamic.h"
  13
  14 #if defined(DSO_DLFCN)
  15
  16 int sd_load(const char *filename, SD *lib, int type)
  17 {
  18     int dl_flags = type;
  19 #ifdef _AIX
  20     if (filename[strlen(filename) - 1] == ')')
  21         dl_flags |= RTLD_MEMBER;
  22 #endif
  23     *lib = dlopen(filename, dl_flags);
  24     return *lib == NULL ? 0 : 1;
  25 }
  26
  27 int sd_sym(SD lib, const char *symname, SD_SYM *sym)
  28 {
  29     *sym = dlsym(lib, symname);
  30     return *sym != NULL;
  31 }
  32
  33 int sd_close(SD lib)
  34 {
  35     return dlclose(lib) != 0 ? 0 : 1;
  36 }
  37
  38 const char *sd_error(void)
  39 {
  40     return dlerror();
  41 }
  42
  43 #elif defined(DSO_WIN32)
  44
  45 nt sd_load(const char *filename, SD *lib, ossl_unused int type)
  46 {
  47     *lib = LoadLibraryA(filename);
  48     return *lib == NULL ? 0 : 1;
  49 }
  50
  51 int sd_sym(SD lib, const char *symname, SD_SYM *sym)
  52 {
  53     *sym = (SD_SYM)GetProcAddress(lib, symname);
  54     return *sym != NULL;
  55 }
  56
  57 int sd_close(SD lib)
  58 {
  59     return FreeLibrary(lib) == 0 ? 0 : 1;
  60 }
  61
  62 const char *sd_error(void)
  63 {
  64     static char buffer[255];
  65
  66     buffer[0] = '\0';
  67     FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
  68                    buffer, sizeof(buffer), NULL);
  69     return buffer;
  70 }
  71
  72 #else
  73
  74 NON_EMPTY_TRANSLATION_UNIT
  75
  76 #endif