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86 lines
2.1 KiB
86 lines
2.1 KiB
/*
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* Dynamic loading with dl{open,close,sym}() functions.
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* Copyright (c) 1998 New Generation Software (NGS) Oy
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*
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* Author: Markku Rossi <mtr@ngs.fi>
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*/
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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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software 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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* $Source: /tmp/cvsroot-15-2-2007/clamav-devel/libclamav/js/dl_open.c,v $
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* $Id: dl_open.c,v 1.2 2006/10/28 11:27:44 njh Exp $
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*/
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#if HAVE_CONFIG_H
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#include "clamav-config.h"
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#endif
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#ifdef CL_EXPERIMENTAL
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#include "jsint.h"
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#include <dlfcn.h>
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/*
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* Global functions.
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*/
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void *
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js_dl_open (const char *filename, char *error_return,
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unsigned int error_return_len)
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{
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void *lib = dlopen (filename, RTLD_NOW);
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if (lib == NULL)
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{
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const char *msg = dlerror ();
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unsigned int msg_len;
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msg_len = strlen (msg);
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if (msg_len > error_return_len - 1)
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msg_len = error_return_len - 1;
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memcpy (error_return, msg, msg_len);
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error_return[msg_len] = '\0';
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}
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return lib;
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}
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void *
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js_dl_sym (void *library, char *symbol, char *error_return,
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unsigned int error_return_len)
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{
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void *sym = dlsym (library, symbol);
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if (sym == NULL)
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{
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const char *msg = dlerror ();
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unsigned int msg_len;
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msg_len = strlen (msg);
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if (msg_len > error_return_len - 1)
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msg_len = error_return_len - 1;
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memcpy (error_return, msg, msg_len);
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error_return[msg_len] = '\0';
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}
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return sym;
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}
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#endif /*CL_EXPERIMENTAL*/
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