kc3-lang/dlfcn-win32/tests/testdll2.c

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• Hash : f0ac8495
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  Date : 2020-08-25T23:34:19
  

  Move cmake targets into sub directories

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• tests/testdll2.c

• /*
   * dlfcn-win32
   * Copyright (c) 2007 Ramiro Polla
   * Copyright (c) 2019 Pali Rohár <pali.rohar@gmail.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  #ifdef _DEBUG
  #define _CRTDBG_MAP_ALLOC
  #include <stdlib.h>
  #include <crtdbg.h>
  #endif
  #include <stdio.h>
  
  #include "dlfcn.h"
  
  #if defined(_WIN32)
  #define EXPORT __declspec(dllexport)
  #else
  #define EXPORT
  #endif
  
  EXPORT int function2( void )
  {
      char *error;
      int (*function2_orig)(void);
      printf( "Hello, world! from wrapper library\n" );
      *(void **) (&function2_orig) = dlsym( RTLD_NEXT, "function2" );
      if (!function2_orig)
      {
          error = dlerror( );
          printf( "ERROR\tCould not get symbol from RTLD_NEXT handle: %s\n",
                  error ? error : "" );
          return 1;
      }
      if (function2_orig() != 0)
      {
          printf( "ERROR\tOriginal function from RTLD_NEXT handle did not return correct value\n" );
          return 1;
      }
      return 2;
  }
  

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