Based on a post on the gcc-help mailing list and some subsequent reading, we can increase our portability to various platforms by directly defining the POSIX and X/OPEN API feature sets we wish to have available. This patch does that, and also includes a double-check to ensure that the system we are compiling on can actually provide the requested feature sets. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@212463 65c4cc65-6c06-0410-ace0-fbb531ad65f3
203 lines
3.8 KiB
C
203 lines
3.8 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2008, Eliel C. Sardanons (LU1ALY) <eliels@gmail.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief XML abstraction layer
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*
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* \author Eliel C. Sardanons (LU1ALY) <eliels@gmail.com>
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*/
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#include "asterisk.h"
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#include "asterisk/xml.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#if defined(HAVE_LIBXML2)
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#include <libxml/parser.h>
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#include <libxml/tree.h>
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#include <libxml/xinclude.h>
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/* libxml2 ast_xml implementation. */
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int ast_xml_init(void)
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{
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LIBXML_TEST_VERSION
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return 0;
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}
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int ast_xml_finish(void)
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{
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xmlCleanupParser();
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return 0;
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}
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struct ast_xml_doc *ast_xml_open(char *filename)
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{
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xmlDoc *doc;
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if (!filename) {
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return NULL;
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}
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doc = xmlReadFile(filename, NULL, XML_PARSE_RECOVER);
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if (doc) {
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/* process xinclude elements. */
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if (xmlXIncludeProcess(doc) < 0) {
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xmlFreeDoc(doc);
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return NULL;
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}
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}
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return (struct ast_xml_doc *) doc;
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}
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void ast_xml_close(struct ast_xml_doc *doc)
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{
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if (!doc) {
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return;
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}
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xmlFreeDoc((xmlDoc *) doc);
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doc = NULL;
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}
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struct ast_xml_node *ast_xml_get_root(struct ast_xml_doc *doc)
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{
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xmlNode *root_node;
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if (!doc) {
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return NULL;
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}
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root_node = xmlDocGetRootElement((xmlDoc *) doc);
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return (struct ast_xml_node *) root_node;
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}
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void ast_xml_free_node(struct ast_xml_node *node)
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{
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if (!node) {
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return;
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}
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xmlFreeNode((xmlNode *) node);
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node = NULL;
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}
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void ast_xml_free_attr(const char *attribute)
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{
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if (attribute) {
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xmlFree((char *) attribute);
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}
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}
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void ast_xml_free_text(const char *text)
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{
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if (text) {
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xmlFree((char *) text);
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}
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}
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const char *ast_xml_get_attribute(struct ast_xml_node *node, const char *attrname)
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{
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xmlChar *attrvalue;
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if (!node) {
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return NULL;
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}
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if (!attrname) {
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return NULL;
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}
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attrvalue = xmlGetProp((xmlNode *) node, (xmlChar *) attrname);
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return (const char *) attrvalue;
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}
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struct ast_xml_node *ast_xml_find_element(struct ast_xml_node *root_node, const char *name, const char *attrname, const char *attrvalue)
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{
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struct ast_xml_node *cur;
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const char *attr;
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if (!root_node) {
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return NULL;
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}
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for (cur = root_node; cur; cur = ast_xml_node_get_next(cur)) {
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/* Check if the name matchs */
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if (strcmp(ast_xml_node_get_name(cur), name)) {
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continue;
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}
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/* We need to check for a specific attribute name? */
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if (!attrname || !attrvalue) {
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return cur;
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}
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/* Get the attribute, we need to compare it. */
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if ((attr = ast_xml_get_attribute(cur, attrname))) {
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/* does attribute name/value matches? */
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if (!strcmp(attr, attrvalue)) {
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ast_xml_free_attr(attr);
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return cur;
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}
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ast_xml_free_attr(attr);
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}
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}
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return NULL;
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}
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const char *ast_xml_get_text(struct ast_xml_node *node)
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{
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if (!node) {
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return NULL;
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}
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return (const char *) xmlNodeGetContent((xmlNode *) node);
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}
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const char *ast_xml_node_get_name(struct ast_xml_node *node)
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{
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return (const char *) ((xmlNode *) node)->name;
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}
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struct ast_xml_node *ast_xml_node_get_children(struct ast_xml_node *node)
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{
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return (struct ast_xml_node *) ((xmlNode *) node)->children;
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}
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struct ast_xml_node *ast_xml_node_get_next(struct ast_xml_node *node)
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{
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return (struct ast_xml_node *) ((xmlNode *) node)->next;
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}
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struct ast_xml_node *ast_xml_node_get_prev(struct ast_xml_node *node)
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{
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return (struct ast_xml_node *) ((xmlNode *) node)->prev;
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}
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struct ast_xml_node *ast_xml_node_get_parent(struct ast_xml_node *node)
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{
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return (struct ast_xml_node *) ((xmlNode *) node)->parent;
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}
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#endif /* defined(HAVE_LIBXML2) */
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