be7e31be0e
dictionary as an XML file rather than building it in, and various Diameter updates. svn path=/trunk/; revision=4122
168 lines
5.1 KiB
C
168 lines
5.1 KiB
C
/* xmlstub.c
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* Routines to parse XML files using libxml2. This stub
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* exists so that the library can be loaded on systems that
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* have it.
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*
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* $Id: xmlstub.c,v 1.1 2001/11/01 21:52:44 guy Exp $
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*
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* Copyright (c) 2001 by David Frascone <dave@frascone.com>
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998-2001 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <glib.h>
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#include <gmodule.h>
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/* XML Stub routines */
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#define IN_XMLSTUB
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#include "xmlstub.h"
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/*
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* This routine will dynamically load libxml2 and will populate the
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* XmlStub pointer structure.
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*
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* On any error, it will return non-zero, and it should be assumed that
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* the current platform does not have dynamic library support, or does
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* not have libxml2 installed.
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*/
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int
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loadLibXML()
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{
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GModule *handle;
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gpointer symbol;
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int error=FALSE;
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if (XmlStubInitialized) {
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/* Did you ever get the feeling you've been here before? */
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/*
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* This is not thread safe. With threads, we'd need to
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* synchronize all this so two threads can't initialize at once.
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*/
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return 0;
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}
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/* Check to see if gmodule is supported */
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if (!g_module_supported()) {
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g_warning("XMLStub: Modules are not supported. Not initializing XML Stub");
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return (-1);
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}
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/* open the dll. Is this named something different
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* under windows? Perhaps we should check . . .
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*/
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if ((handle = g_module_open(XML_LIBRARY, G_MODULE_BIND_LAZY)) == NULL) {
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g_warning("XMLStub: Unable to open module " XML_LIBRARY);
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return (-1);
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}
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/*
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* Now that the library is open, copy all our relevant
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* function pointers and integer pointers into our structure.
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*/
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if (!g_module_symbol(handle, "xmlParseFile", &symbol)) {
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g_warning("Unable to find \"xmlParseFile\"");
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error=TRUE;
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}
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XmlStub.xmlParseFile= (xmlDocPtr(*)(const char *))symbol;
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if (!g_module_symbol(handle, "xmlStrcmp", &symbol)) {
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g_warning("Unable to find \"xmlStrcmp\"");
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error=TRUE;
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}
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XmlStub.xmlStrcmp= (int (*)(const xmlChar *, const xmlChar *))symbol;
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if (!g_module_symbol(handle, "xmlCreatePushParserCtxt", &symbol)) {
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g_warning("Unable to find \"xmlCreatePushParserCtxt\"");
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error=TRUE;
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}
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XmlStub.xmlCreatePushParserCtxt=(xmlParserCtxtPtr (*)
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(xmlSAXHandlerPtr, void *, const char *,
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int, const char *)) symbol;
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if (!g_module_symbol(handle, "xmlParseChunk", &symbol)) {
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g_warning("Unable to find \"xmlParseChunk\"");
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error=TRUE;
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}
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XmlStub.xmlParseChunk=(int (*)(xmlParserCtxtPtr, const char *, int, int))symbol;
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if (!g_module_symbol(handle, "xmlFreeParserCtxt", &symbol)) {
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g_warning("Unable to find \"xmlFreeParserCtxt\"");
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error=TRUE;
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}
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XmlStub.xmlFreeParserCtxt=(void (*)(xmlParserCtxtPtr))symbol;
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if (!g_module_symbol(handle, "xmlDocGetRootElement", &symbol)) {
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g_warning("Unable to find \"xmlDocGetRootElement\"");
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error=TRUE;
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}
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XmlStub.xmlDocGetRootElement=(xmlNodePtr(*)(xmlDocPtr))symbol;
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if (!g_module_symbol(handle, "xmlFreeDoc", &symbol)) {
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g_warning("Unable to find \"xmlFreeDoc\"");
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error=TRUE;
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}
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XmlStub.xmlFreeDoc=(void (*)(xmlDocPtr))symbol;
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if (!g_module_symbol(handle, "xmlNodeListGetString", &symbol)) {
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g_warning("Unable to find \"xmlNodeListGetString\"");
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error=TRUE;
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}
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XmlStub.xmlNodeListGetString=(char * (*)(xmlDocPtr, xmlNodePtr, int))symbol;
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if (!g_module_symbol(handle, "xmlGetProp", &symbol)) {
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g_warning("Unable to find \"xmlGetProp\"");
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error=TRUE;
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}
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XmlStub.xmlGetProp=(char * (*)(xmlNodePtr, char *))symbol;
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if (!g_module_symbol(handle, "xmlKeepBlanksDefault", &symbol)) {
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g_warning("Unable to find \"xmlKeepBlanksDefault\"");
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error=TRUE;
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}
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XmlStub.xmlKeepBlanksDefault=(int(*)(int))symbol;
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if (!g_module_symbol(handle, "xmlSubstituteEntitiesDefault", &symbol)) {
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g_warning("Unable to find \"xmlSubstituteEntitiesDefault\"");
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error=TRUE;
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}
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XmlStub.xmlSubstituteEntitiesDefault=(int(*)(int))symbol;
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if (!g_module_symbol(handle, "xmlDoValidityCheckingDefaultValue", &symbol)) {
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g_warning("Unable to find \"xmlDoValidityCheckingDefaultValue\"");
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error=TRUE;
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}
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XmlStub.xmlDoValidityCheckingDefaultValue = (int *)symbol;
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/*
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* Return if any of the above functions set our error flag.
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* A flag was used, instead of returning immediately, so
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* that *all* unresolved symbols would be printed.
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*/
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if (error) {
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g_module_close(handle);
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return (-1);
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}
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/* Set our global so that we don't try to load twice */
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XmlStubInitialized=1;
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return 0; /* Success! */
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} /* loadLibXML */
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