148 lines
4.1 KiB
C
148 lines
4.1 KiB
C
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: checkdll.c,v $
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*
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* $Revision: 1.8 $
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*
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* last change: $Author: rt $ $Date: 2005-09-08 07:22:57 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#ifdef MACOSX
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#include <mach-o/dyld.h>
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#else
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#include <dlfcn.h>
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#endif
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/*
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* NOTE: Since no one is really interested in correct unload behavior I've
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* disabled the shared library unload check. If you want to reenable it comment
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* the following line out
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*/
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#define NO_UNLOAD_CHECK
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static const char *pprog_name = "checkdll";
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static const char *psymbol = "GetVersionInfo";
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void usage()
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{
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fprintf(stderr, "usage: %s <dllname>\n", pprog_name);
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return;
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}
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int main(int argc, char *argv[])
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{
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int rc;
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#ifdef MACOSX
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struct mach_header *pLib;
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#else
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void *phandle;
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#endif
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char *(*pfun)(void);
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if ( argc < 2 || argc > 3) {
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usage();
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return 1;
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}
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if ( (rc = access( argv[1], R_OK )) == -1 ) {
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fprintf(stderr, "%s: ERROR: %s: %s\n",
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pprog_name, argv[1], strerror(errno));
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return 2;
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}
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printf("Checking DLL %s ...", argv[1]);
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fflush(stdout);
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#ifdef MACOSX
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// Check if library is already loaded
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pLib = NSAddImage(argv[1], NSADDIMAGE_OPTION_RETURN_ONLY_IF_LOADED);
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if (!pLib) {
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// Check DYLD_LIBRARY_PATH
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pLib = NSAddImage(argv[1], NSADDIMAGE_OPTION_WITH_SEARCHING);
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}
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if (pLib) {
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// Prefix symbol name with '_'
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int len = strlen(psymbol);
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char *name = malloc(1+len+1);
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NSSymbol *symbol;
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void *address = NULL;
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strncpy(name, "_", 2);
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strncat(name, psymbol, len);
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symbol = NSLookupSymbolInImage(pLib, name, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND);
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free(name);
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if (symbol) address = NSAddressOfSymbol(symbol);
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if (address != NULL) {
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printf(": ok\n");
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#ifdef NO_UNLOAD_CHECK
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_exit(0);
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#else
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// Mac OS X can't unload dylibs
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#endif
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} else {
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printf(": WARNING: symbol %s not found\n", psymbol);
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}
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return 0;
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} else {
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printf(": WARNING: %s is not a valid dylib name\n", argv[1]);
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}
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return 3;
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// fixme use NSLinkEditError() for better error messages
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#else /* MACOSX */
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if ( (phandle = dlopen(argv[1], RTLD_NOW)) != NULL ) {
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if ( (pfun = (char *(*)(void))dlsym(phandle, psymbol)) != NULL ) {
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printf(": ok\n");
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}
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else
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{
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printf(": WARNING: %s\n", dlerror());
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}
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#ifdef NO_UNLOAD_CHECK
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_exit(0);
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#else
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dlclose(phandle);
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#endif
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return 0;
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}
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printf(": ERROR: %s\n", dlerror());
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return 3;
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#endif /* MACOSX */
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}
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