1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 29 #include <stdio.h> 30 #include <string.h> 31 #include <errno.h> 32 #include <unistd.h> 33 #include <dlfcn.h> 34 35 /* 36 * NOTE: Since no one is really interested in correct unload behavior I've 37 * disabled the shared library unload check. If you want to reenable it comment 38 * the following line out 39 */ 40 #define NO_UNLOAD_CHECK 41 42 static const char *pprog_name = "checkdll"; 43 static const char *psymbol = "GetVersionInfo"; 44 45 void usage() 46 { 47 fprintf(stderr, "usage: %s [-s] <dllname>\n", pprog_name); 48 return; 49 } 50 51 int main(int argc, char *argv[]) 52 { 53 int rc; 54 int silent=0; 55 void *phandle; 56 char *(*pfun)(void); 57 58 if ( argc < 2 || argc > 4) { 59 usage(); 60 return 1; 61 } 62 63 if ( !strcmp(argv[1],"-s") ) { 64 silent = 1; 65 ++argv, --argc; 66 } 67 68 if ( (rc = access( argv[1], R_OK )) == -1 ) { 69 fprintf(stderr, "%s: ERROR: %s: %s\n", 70 pprog_name, argv[1], strerror(errno)); 71 return 2; 72 } 73 74 if (!silent) printf("Checking DLL %s ...", argv[1]); 75 fflush(stdout); 76 77 if ( (phandle = dlopen(argv[1], RTLD_NOW)) != NULL ) { 78 if ( (pfun = (char *(*)(void))dlsym(phandle, psymbol)) != NULL ) { 79 if (!silent) printf(": ok\n"); 80 } 81 else 82 { 83 printf(": WARNING: %s\n", dlerror()); 84 } 85 #ifdef NO_UNLOAD_CHECK 86 _exit(0); 87 #else 88 dlclose(phandle); 89 #endif 90 return 0; 91 } 92 93 printf(": ERROR: %s\n", dlerror()); 94 return 3; 95 } 96 97 98