/* * dlfcn-win32 * Copyright (c) 2007 Ramiro Polla * Copyright (c) 2019 Pali Rohár * * dlfcn-win32 is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * dlfcn-win32 is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with dlfcn-win32; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifdef _DEBUG #define _CRTDBG_MAP_ALLOC #include #include #endif #include #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" ); 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; }