[Freeswitch-svn] [commit] r5537 - freeswitch/trunk/scripts/contrib/trixter

Freeswitch SVN trixter at freeswitch.org
Wed Jul 18 04:25:13 EDT 2007


Author: trixter
Date: Wed Jul 18 04:25:12 2007
New Revision: 5537

Added:
   freeswitch/trunk/scripts/contrib/trixter/switch_xml.c

Log:
patch for newer GCC versions with better error checking


Added: freeswitch/trunk/scripts/contrib/trixter/switch_xml.c
==============================================================================
--- (empty file)
+++ freeswitch/trunk/scripts/contrib/trixter/switch_xml.c	Wed Jul 18 04:25:12 2007
@@ -0,0 +1,1783 @@
+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005/2006, Anthony Minessale II <anthmct at yahoo.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * Anthony Minessale II <anthmct at yahoo.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Anthony Minessale II <anthmct at yahoo.com>
+ *
+ *
+ * switch_xml.c -- XML PARSER
+ *
+ * Derived from ezxml http://ezxml.sourceforge.net
+ * Original Copyright
+ *
+ * Copyright 2004, 2006 Aaron Voisine <aaron at voisine.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <switch.h>
+#ifndef WIN32
+#include <switch_private.h>
+#endif
+
+#ifdef HAVE_MMAP
+#include <sys/mman.h>
+#ifdef __sun
+extern int madvise(caddr_t, size_t, int);
+#endif
+#endif
+
+#define SWITCH_XML_WS   "\t\r\n "	// whitespace
+#define SWITCH_XML_ERRL 128		// maximum error string length
+
+typedef struct switch_xml_root *switch_xml_root_t;
+struct switch_xml_root {		// additional data for the root tag
+	struct switch_xml xml;		// is a super-struct built on top of switch_xml struct
+	switch_xml_t cur;			// current xml tree insertion point
+	char *m;					// original xml string
+	switch_size_t len;			// length of allocated memory for mmap
+	uint8_t dynamic;
+	char *u;					// UTF-8 conversion of string if original was UTF-16
+	char *s;					// start of work area
+	char *e;					// end of work area
+	char **ent;					// general entities (ampersand sequences)
+	char ***attr;				// default attributes
+	char ***pi;					// processing instructions
+	short standalone;			// non-zero if <?xml standalone="yes"?>
+	char err[SWITCH_XML_ERRL];	// error string
+};
+
+char *SWITCH_XML_NIL[] = { NULL };	// empty, null terminated array of strings
+
+struct switch_xml_binding {
+	switch_xml_search_function_t function;
+	switch_xml_section_t sections;
+	void *user_data;
+	struct switch_xml_binding *next;
+};
+
+typedef struct switch_xml_binding switch_xml_binding_t;
+static switch_xml_binding_t *BINDINGS = NULL;
+static switch_xml_t MAIN_XML_ROOT = NULL;
+static switch_memory_pool_t *XML_MEMORY_POOL;
+static switch_mutex_t *XML_LOCK;
+static switch_thread_rwlock_t *RWLOCK;
+static uint32_t lock_count = 0;
+
+struct xml_section_t {
+	const char *name;
+	switch_xml_section_t section;
+};
+
+
+static struct xml_section_t SECTIONS[] = {
+	{"result", SWITCH_XML_SECTION_RESULT},
+	{"config", SWITCH_XML_SECTION_CONFIG},
+	{"directory", SWITCH_XML_SECTION_DIRECTORY},
+	{"dialplan", SWITCH_XML_SECTION_DIALPLAN},
+	{"phrases", SWITCH_XML_SECTION_PHRASES},
+	{NULL, 0}
+};
+
+SWITCH_DECLARE(switch_xml_section_t) switch_xml_parse_section_string(const char *str)
+{
+	size_t x;
+	char buf[1024] = "";
+	switch_xml_section_t sections = SWITCH_XML_SECTION_RESULT;
+
+	if (str) {
+		for (x = 0; x < strlen(str); x++) {
+			buf[x] = (char) tolower((int) str[x]);
+		}
+		for (x = 0;; x++) {
+			if (!SECTIONS[x].name) {
+				break;
+			}
+			if (strstr(buf, SECTIONS[x].name)) {
+				sections |= SECTIONS[x].section;
+			}
+		}
+	}
+	return sections;
+}
+
+SWITCH_DECLARE(switch_status_t) switch_xml_bind_search_function(switch_xml_search_function_t function, switch_xml_section_t sections, void *user_data)
+{
+	switch_xml_binding_t *binding = NULL, *ptr = NULL;
+	assert(function != NULL);
+
+	if (!(binding = switch_core_alloc(XML_MEMORY_POOL, sizeof(*binding)))) {
+		return SWITCH_STATUS_MEMERR;
+	}
+
+	binding->function = function;
+	binding->sections = sections;
+	binding->user_data = user_data;
+
+	switch_mutex_lock(XML_LOCK);
+	for (ptr = BINDINGS; ptr && ptr->next; ptr = ptr->next);
+
+	if (ptr) {
+		ptr->next = binding;
+	} else {
+		BINDINGS = binding;
+	}
+	switch_mutex_unlock(XML_LOCK);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+
+SWITCH_DECLARE(switch_xml_t) switch_xml_find_child(switch_xml_t node, const char *childname, const char *attrname, const char *value)
+{
+	switch_xml_t p = NULL;
+
+	if (!(childname && attrname && value)) {
+		return node;
+	}
+
+	for (p = switch_xml_child(node, childname); p; p = p->next) {
+		const char *aname = switch_xml_attr(p, attrname);
+		if (aname && value && !strcasecmp(aname, value)) {
+			break;
+		}
+	}
+
+	return p;
+}
+
+// returns the first child tag with the given name or NULL if not found
+SWITCH_DECLARE(switch_xml_t) switch_xml_child(switch_xml_t xml, const char *name)
+{
+	xml = (xml) ? xml->child : NULL;
+	while (xml && strcmp(name, xml->name))
+		xml = xml->sibling;
+	return xml;
+}
+
+// returns the Nth tag with the same name in the same subsection or NULL if not
+// found
+switch_xml_t switch_xml_idx(switch_xml_t xml, int idx)
+{
+	for (; xml && idx; idx--)
+		xml = xml->next;
+	return xml;
+}
+
+// returns the value of the requested tag attribute or "" if not found
+SWITCH_DECLARE(const char *) switch_xml_attr_soft(switch_xml_t xml, const char *attr)
+{
+	const char *ret = switch_xml_attr(xml, attr);
+
+	return ret ? ret : "";
+}
+
+// returns the value of the requested tag attribute or NULL if not found
+SWITCH_DECLARE(const char *) switch_xml_attr(switch_xml_t xml, const char *attr)
+{
+	int i = 0, j = 1;
+	switch_xml_root_t root = (switch_xml_root_t) xml;
+
+	if (!xml || !xml->attr)
+		return NULL;
+	while (xml->attr[i] && strcmp(attr, xml->attr[i]))
+		i += 2;
+	if (xml->attr[i])
+		return xml->attr[i + 1];	// found attribute
+
+	while (root->xml.parent)
+		root = (switch_xml_root_t) root->xml.parent;	// root tag
+	for (i = 0; root->attr[i] && strcmp(xml->name, root->attr[i][0]); i++);
+	if (!root->attr[i])
+		return NULL;			// no matching default attributes
+	while (root->attr[i][j] && strcmp(attr, root->attr[i][j]))
+		j += 3;
+	return (root->attr[i][j]) ? root->attr[i][j + 1] : NULL;	// found default
+}
+
+// same as switch_xml_get but takes an already initialized va_list
+static switch_xml_t switch_xml_vget(switch_xml_t xml, va_list ap)
+{
+	char *name = va_arg(ap, char *);
+	int idx = -1;
+
+	if (name && *name) {
+		idx = va_arg(ap, int);
+		xml = switch_xml_child(xml, name);
+	}
+	return (idx < 0) ? xml : switch_xml_vget(switch_xml_idx(xml, idx), ap);
+}
+
+// Traverses the xml tree to retrieve a specific subtag. Takes a variable
+// length list of tag names and indexes. The argument list must be terminated
+// by either an index of -1 or an empty string tag name. Example: 
+// title = switch_xml_get(library, "shelf", 0, "book", 2, "title", -1);
+// This retrieves the title of the 3rd book on the 1st shelf of library.
+// Returns NULL if not found.
+SWITCH_DECLARE(switch_xml_t) switch_xml_get(switch_xml_t xml,...)
+{
+	va_list ap;
+	switch_xml_t r;
+
+	va_start(ap, xml);
+	r = switch_xml_vget(xml, ap);
+	va_end(ap);
+	return r;
+}
+
+// returns a null terminated array of processing instructions for the given
+// target
+SWITCH_DECLARE(const char **) switch_xml_pi(switch_xml_t xml, const char *target)
+{
+	switch_xml_root_t root = (switch_xml_root_t) xml;
+	int i = 0;
+
+	if (!root)
+		return (const char **) SWITCH_XML_NIL;
+	while (root->xml.parent)
+		root = (switch_xml_root_t) root->xml.parent;	// root tag
+	while (root->pi[i] && strcmp(target, root->pi[i][0]))
+		i++;					// find target
+	return (const char **) ((root->pi[i]) ? root->pi[i] + 1 : SWITCH_XML_NIL);
+}
+
+// set an error string and return root
+static switch_xml_t switch_xml_err(switch_xml_root_t root, char *s, const char *err, ...)
+{
+	va_list ap;
+	int line = 1;
+	char *t, fmt[SWITCH_XML_ERRL];
+
+	for (t = root->s; t && t < s; t++)
+		if (*t == '\n')
+			line++;
+	snprintf(fmt, SWITCH_XML_ERRL, "[error near line %d]: %s", line, err);
+
+	va_start(ap, err);
+	vsnprintf(root->err, SWITCH_XML_ERRL, fmt, ap);
+	va_end(ap);
+
+	return &root->xml;
+}
+
+// Recursively decodes entity and character references and normalizes new lines
+// ent is a null terminated array of alternating entity names and values. set t
+// to '&' for general entity decoding, '%' for parameter entity decoding, 'c'
+// for cdata sections, ' ' for attribute normalization, or '*' for non-cdata
+// attribute normalization. Returns s, or if the decoded string is longer than
+// s, returns a malloced string that must be freed.
+static char *switch_xml_decode(char *s, char **ent, char t)
+{
+	char *e, *r = s, *m = s;
+	long b, c, d, l;
+
+	for (; *s; s++) {			// normalize line endings
+		while (*s == '\r') {
+			*(s++) = '\n';
+			if (*s == '\n')
+				memmove(s, (s + 1), strlen(s));
+		}
+	}
+
+	for (s = r;;) {
+		while (*s && *s != '&' && (*s != '%' || t != '%') && !isspace((int) (*s)))
+			s++;
+
+		if (!*s)
+			break;
+		else if (t != 'c' && !strncmp(s, "&#", 2)) {	// character reference
+			if (s[2] == 'x')
+				c = strtol(s + 3, &e, 16);	// base 16
+			else
+				c = strtol(s + 2, &e, 10);	// base 10
+			if (!c || *e != ';') {
+				s++;
+				continue;
+			}					// not a character ref
+
+			if (c < 0x80)
+				*(s++) = (char) c;	// US-ASCII subset
+			else {				// multi-byte UTF-8 sequence
+				for (b = 0, d = c; d; d /= 2)
+					b++;		// number of bits in c
+				b = (b - 2) / 5;	// number of bytes in payload
+				*(s++) = (char) ((0xFF << (7 - b)) | (c >> (6 * b)));	// head
+				while (b)
+					*(s++) = (char) (0x80 | ((c >> (6 * --b)) & 0x3F));	// payload
+			}
+
+			memmove(s, strchr(s, ';') + 1, strlen(strchr(s, ';')));
+		} else if ((*s == '&' && (t == '&' || t == ' ' || t == '*')) || (*s == '%' && t == '%')) {	// entity reference
+			for (b = 0; ent[b] && strncmp(s + 1, ent[b], strlen(ent[b])); b += 2);	// find entity in entity list
+
+			if (ent[b++]) {		// found a match
+				if ((c = (long) strlen(ent[b])) - 1 > (e = strchr(s, ';')) - s) {
+					l = (d = (long) (s - r)) + c + (long) strlen(e);	// new length
+					r = (r == m) ? strcpy(malloc(l), r) : realloc(r, l);
+					e = strchr((s = r + d), ';');	// fix up pointers
+				}
+
+				memmove(s + c, e + 1, strlen(e));	// shift rest of string
+				strncpy(s, ent[b], c);	// copy in replacement text
+			} else
+				s++;			// not a known entity
+		} else if ((t == ' ' || t == '*') && isspace((int) (*s)))
+			*(s++) = ' ';
+		else
+			s++;				// no decoding needed
+	}
+
+	if (t == '*') {				// normalize spaces for non-cdata attributes
+		for (s = r; *s; s++) {
+			if ((l = (long) strspn(s, " ")))
+				memmove(s, s + l, strlen(s + l) + 1);
+			while (*s && *s != ' ')
+				s++;
+		}
+		if (--s >= r && *s == ' ')
+			*s = '\0';			// trim any trailing space
+	}
+	return r;
+}
+
+// called when parser finds start of new tag
+static void switch_xml_open_tag(switch_xml_root_t root, char *name, char **attr)
+{
+	switch_xml_t xml = root->cur;
+
+	if (xml->name)
+		xml = switch_xml_add_child(xml, name, strlen(xml->txt));
+	else
+		xml->name = name;		// first open tag
+
+	xml->attr = attr;
+	root->cur = xml;			// update tag insertion point
+}
+
+// called when parser finds character content between open and closing tag
+static void switch_xml_char_content(switch_xml_root_t root, char *s, switch_size_t len, char t)
+{
+	switch_xml_t xml = root->cur;
+	char *m = s;
+	switch_size_t l;
+
+	if (!xml || !xml->name || !len)
+		return;					// sanity check
+
+	s[len] = '\0';				// null terminate text (calling functions anticipate this)
+	len = strlen(s = switch_xml_decode(s, root->ent, t)) + 1;
+
+	if (!*(xml->txt))
+		xml->txt = s;			// initial character content
+	else {						// allocate our own memory and make a copy
+		xml->txt = (xml->flags & SWITCH_XML_TXTM)	// allocate some space
+			? realloc(xml->txt, (l = strlen(xml->txt)) + len)
+			: strcpy(malloc((l = strlen(xml->txt)) + len), xml->txt);
+		strcpy(xml->txt + l, s);	// add new char content
+		if (s != m)
+			free(s);			// free s if it was malloced by switch_xml_decode()
+	}
+
+	if (xml->txt != m)
+		switch_xml_set_flag(xml, SWITCH_XML_TXTM);
+}
+
+// called when parser finds closing tag
+static switch_xml_t switch_xml_close_tag(switch_xml_root_t root, char *name, char *s)
+{
+	if (!root->cur || !root->cur->name || strcmp(name, root->cur->name))
+		return switch_xml_err(root, s, "unexpected closing tag </%s>", name);
+
+	root->cur = root->cur->parent;
+	return NULL;
+}
+
+// checks for circular entity references, returns non-zero if no circular
+// references are found, zero otherwise
+static int switch_xml_ent_ok(char *name, char *s, char **ent)
+{
+	int i;
+
+	for (;; s++) {
+		while (*s && *s != '&')
+			s++;				// find next entity reference
+		if (!*s)
+			return 1;
+		if (!strncmp(s + 1, name, strlen(name)))
+			return 0;			// circular ref.
+		for (i = 0; ent[i] && strncmp(ent[i], s + 1, strlen(ent[i])); i += 2);
+		if (ent[i] && !switch_xml_ent_ok(name, ent[i + 1], ent))
+			return 0;
+	}
+}
+
+// called when the parser finds a processing instruction
+static void switch_xml_proc_inst(switch_xml_root_t root, char *s, switch_size_t len)
+{
+	int i = 0, j = 1;
+	char *target = s;
+
+	s[len] = '\0';				// null terminate instruction
+	if (*(s += strcspn(s, SWITCH_XML_WS))) {
+		*s = '\0';				// null terminate target
+		s += strspn(s + 1, SWITCH_XML_WS) + 1;	// skip whitespace after target
+	}
+
+	if (!strcmp(target, "xml")) {	// <?xml ... ?>
+		if ((s = strstr(s, "standalone")) && !strncmp(s + strspn(s + 10, SWITCH_XML_WS "='\"") + 10, "yes", 3))
+			root->standalone = 1;
+		return;
+	}
+
+	if (!root->pi[0])
+		*(root->pi = malloc(sizeof(char **))) = NULL;	//first pi
+
+	while (root->pi[i] && strcmp(target, root->pi[i][0]))
+		i++;					// find target
+	if (!root->pi[i]) {			// new target
+		root->pi = realloc(root->pi, sizeof(char **) * (i + 2));
+		root->pi[i] = malloc(sizeof(char *) * 3);
+		root->pi[i][0] = target;
+		root->pi[i][1] = (char *) (root->pi[i + 1] = NULL);	// terminate pi list
+		root->pi[i][2] = strdup("");	// empty document position list
+	}
+
+	while (root->pi[i][j])
+		j++;					// find end of instruction list for this target
+	root->pi[i] = realloc(root->pi[i], sizeof(char *) * (j + 3));
+	root->pi[i][j + 2] = realloc(root->pi[i][j + 1], j + 1);
+	strcpy(root->pi[i][j + 2] + j - 1, (root->xml.name) ? ">" : "<");
+	root->pi[i][j + 1] = NULL;	// null terminate pi list for this target
+	root->pi[i][j] = s;			// set instruction
+}
+
+// called when the parser finds an internal doctype subset
+static short switch_xml_internal_dtd(switch_xml_root_t root, char *s, switch_size_t len)
+{
+	char q, *c, *t, *n = NULL, *v, **ent, **pe;
+	int i, j;
+
+	pe = memcpy(malloc(sizeof(SWITCH_XML_NIL)), SWITCH_XML_NIL, sizeof(SWITCH_XML_NIL));
+
+	for (s[len] = '\0'; s;) {
+		while (*s && *s != '<' && *s != '%')
+			s++;				// find next declaration
+
+		if (!*s)
+			break;
+		else if (!strncmp(s, "<!ENTITY", 8)) {	// parse entity definitions
+			c = s += strspn(s + 8, SWITCH_XML_WS) + 8;	// skip white space separator
+			n = s + strspn(s, SWITCH_XML_WS "%");	// find name
+			*(s = n + strcspn(n, SWITCH_XML_WS)) = ';';	// append ; to name
+
+			v = s + strspn(s + 1, SWITCH_XML_WS) + 1;	// find value
+			if ((q = *(v++)) != '"' && q != '\'') {	// skip externals
+				s = strchr(s, '>');
+				continue;
+			}
+
+			for (i = 0, ent = (*c == '%') ? pe : root->ent; ent[i]; i++);
+			ent = realloc(ent, (i + 3) * sizeof(char *));	// space for next ent
+			if (*c == '%')
+				pe = ent;
+			else
+				root->ent = ent;
+
+			*(++s) = '\0';		// null terminate name
+			if ((s = strchr(v, q)))
+				*(s++) = '\0';	// null terminate value
+			ent[i + 1] = switch_xml_decode(v, pe, '%');	// set value
+			ent[i + 2] = NULL;	// null terminate entity list
+			if (!switch_xml_ent_ok(n, ent[i + 1], ent)) {	// circular reference
+				if (ent[i + 1] != v)
+					free(ent[i + 1]);
+				switch_xml_err(root, v, "circular entity declaration &%s", n);
+				break;
+			} else
+				ent[i] = n;		// set entity name
+		} else if (!strncmp(s, "<!ATTLIST", 9)) {	// parse default attributes
+			t = s + strspn(s + 9, SWITCH_XML_WS) + 9;	// skip whitespace separator
+			if (!*t) {
+				switch_xml_err(root, t, "unclosed <!ATTLIST");
+				break;
+			}
+			if (*(s = t + strcspn(t, SWITCH_XML_WS ">")) == '>')
+				continue;
+			else
+				*s = '\0';		// null terminate tag name
+			for (i = 0; root->attr[i] && strcmp(n, root->attr[i][0]); i++);
+
+			while (*(n = ++s + strspn(s, SWITCH_XML_WS)) && *n != '>') {
+				if (*(s = n + strcspn(n, SWITCH_XML_WS)))
+					*s = '\0';	// attr name
+				else {
+					switch_xml_err(root, t, "malformed <!ATTLIST");
+					break;
+				}
+
+				s += strspn(s + 1, SWITCH_XML_WS) + 1;	// find next token
+				c = (strncmp(s, "CDATA", 5)) ? "*" : " ";	// is it cdata?
+				if (!strncmp(s, "NOTATION", 8))
+					s += strspn(s + 8, SWITCH_XML_WS) + 8;
+				s = (*s == '(') ? strchr(s, ')') : s + strcspn(s, SWITCH_XML_WS);
+				if (!s) {
+					switch_xml_err(root, t, "malformed <!ATTLIST");
+					break;
+				}
+
+				s += strspn(s, SWITCH_XML_WS ")");	// skip white space separator
+				if (!strncmp(s, "#FIXED", 6))
+					s += strspn(s + 6, SWITCH_XML_WS) + 6;
+				if (*s == '#') {	// no default value
+					s += strcspn(s, SWITCH_XML_WS ">") - 1;
+					if (*c == ' ')
+						continue;	// cdata is default, nothing to do
+					v = NULL;
+				} else if ((*s == '"' || *s == '\'') &&	// default value
+						   (s = strchr(v = s + 1, *s)))
+					*s = '\0';
+				else {
+					switch_xml_err(root, t, "malformed <!ATTLIST");
+					break;
+				}
+
+				if (!root->attr[i]) {	// new tag name
+					root->attr = (!i) ? malloc(2 * sizeof(char **))
+						: realloc(root->attr, (i + 2) * sizeof(char **));
+					root->attr[i] = malloc(2 * sizeof(char *));
+					root->attr[i][0] = t;	// set tag name
+					root->attr[i][1] = (char *) (root->attr[i + 1] = NULL);
+				}
+
+				for (j = 1; root->attr[i][j]; j += 3);	// find end of list
+				root->attr[i] = realloc(root->attr[i], (j + 4) * sizeof(char *));
+
+				root->attr[i][j + 3] = NULL;	// null terminate list
+				root->attr[i][j + 2] = c;	// is it cdata?
+				root->attr[i][j + 1] = (v) ? switch_xml_decode(v, root->ent, *c)
+					: NULL;
+				root->attr[i][j] = n;	// attribute name 
+			}
+		} else if (!strncmp(s, "<!--", 4))
+			s = strstr(s + 4, "-->");	// comments
+		else if (!strncmp(s, "<?", 2)) {	// processing instructions
+			if ((s = strstr(c = s + 2, "?>")))
+				switch_xml_proc_inst(root, c, s++ - c);
+		} else if (*s == '<')
+			s = strchr(s, '>');	// skip other declarations
+		else if (*(s++) == '%' && !root->standalone)
+			break;
+	}
+
+	free(pe);
+	return !*root->err;
+}
+
+// Converts a UTF-16 string to UTF-8. Returns a new string that must be freed
+// or NULL if no conversion was needed.
+static char *switch_xml_str2utf8(char **s, switch_size_t *len)
+{
+	char *u;
+	switch_size_t l = 0, sl, max = *len;
+	long c, d;
+	int b, be = (**s == '\xFE') ? 1 : (**s == '\xFF') ? 0 : -1;
+
+	if (be == -1)
+		return NULL;			// not UTF-16
+
+	u = malloc(max);
+	for (sl = 2; sl < *len - 1; sl += 2) {
+		c = (be) ? (((*s)[sl] & 0xFF) << 8) | ((*s)[sl + 1] & 0xFF)	//UTF-16BE
+			: (((*s)[sl + 1] & 0xFF) << 8) | ((*s)[sl] & 0xFF);	//UTF-16LE
+		if (c >= 0xD800 && c <= 0xDFFF && (sl += 2) < *len - 1) {	// high-half
+			d = (be) ? (((*s)[sl] & 0xFF) << 8) | ((*s)[sl + 1] & 0xFF)
+				: (((*s)[sl + 1] & 0xFF) << 8) | ((*s)[sl] & 0xFF);
+			c = (((c & 0x3FF) << 10) | (d & 0x3FF)) + 0x10000;
+		}
+
+		while (l + 6 > max)
+			u = realloc(u, max += SWITCH_XML_BUFSIZE);
+		if (c < 0x80)
+			u[l++] = (char) c;	// US-ASCII subset
+		else {					// multi-byte UTF-8 sequence
+			for (b = 0, d = c; d; d /= 2)
+				b++;			// bits in c
+			b = (b - 2) / 5;	// bytes in payload
+			u[l++] = (char) ((0xFF << (7 - b)) | (c >> (6 * b)));	// head
+			while (b)
+				u[l++] = (char) (0x80 | ((c >> (6 * --b)) & 0x3F));	// payload
+		}
+	}
+	return *s = realloc(u, *len = l);
+}
+
+// frees a tag attribute list
+static void switch_xml_free_attr(char **attr)
+{
+	int i = 0;
+	char *m;
+
+	if (!attr || attr == SWITCH_XML_NIL)
+		return;					// nothing to free
+	while (attr[i])
+		i += 2;					// find end of attribute list
+	m = attr[i + 1];			// list of which names and values are malloced
+	for (i = 0; m[i]; i++) {
+		if (m[i] & SWITCH_XML_NAMEM)
+			free(attr[i * 2]);
+		if (m[i] & SWITCH_XML_TXTM)
+			free(attr[(i * 2) + 1]);
+	}
+	free(m);
+	free(attr);
+}
+
+// parse the given xml string and return an switch_xml structure
+SWITCH_DECLARE(switch_xml_t) switch_xml_parse_str(char *s, switch_size_t len)
+{
+	switch_xml_root_t root = (switch_xml_root_t) switch_xml_new(NULL);
+	char q, e, *d, **attr, **a = NULL;	// initialize a to avoid compile warning
+	int l, i, j;
+
+	root->m = s;
+	if (!len)
+		return switch_xml_err(root, s, "root tag missing");
+	root->u = switch_xml_str2utf8(&s, &len);	// convert utf-16 to utf-8
+	root->e = (root->s = s) + len;	// record start and end of work area
+
+	e = s[len - 1];				// save end char
+	s[len - 1] = '\0';			// turn end char into null terminator
+
+	while (*s && *s != '<')
+		s++;					// find first tag
+	if (!*s)
+		return switch_xml_err(root, s, "root tag missing");
+
+	for (;;) {
+		attr = (char **) SWITCH_XML_NIL;
+		d = ++s;
+
+		if (isalpha((int) (*s)) || *s == '_' || *s == ':' || (int8_t) *s < '\0') {	// new tag
+			if (!root->cur)
+				return switch_xml_err(root, d, "markup outside of root element");
+
+			s += strcspn(s, SWITCH_XML_WS "/>");
+			while (isspace((int) (*s)))
+				*(s++) = '\0';	// null terminate tag name
+
+			if (*s && *s != '/' && *s != '>')	// find tag in default attr list
+				for (i = 0; (a = root->attr[i]) && strcmp(a[0], d); i++);
+
+			for (l = 0; *s && *s != '/' && *s != '>'; l += 2) {	// new attrib
+				attr = (l) ? realloc(attr, (l + 4) * sizeof(char *))
+					: malloc(4 * sizeof(char *));	// allocate space
+				attr[l + 3] = (l) ? realloc(attr[l + 1], (l / 2) + 2)
+					: malloc(2);	// mem for list of maloced vals
+				strcpy(attr[l + 3] + (l / 2), " ");	// value is not malloced
+				attr[l + 2] = NULL;	// null terminate list
+				attr[l + 1] = "";	// temporary attribute value
+				attr[l] = s;	// set attribute name
+
+				s += strcspn(s, SWITCH_XML_WS "=/>");
+				if (*s == '=' || isspace((int) (*s))) {
+					*(s++) = '\0';	// null terminate tag attribute name
+					q = *(s += strspn(s, SWITCH_XML_WS "="));
+					if (q == '"' || q == '\'') {	// attribute value
+						attr[l + 1] = ++s;
+						while (*s && *s != q)
+							s++;
+						if (*s)
+							*(s++) = '\0';	// null terminate attribute val
+						else {
+							switch_xml_free_attr(attr);
+							return switch_xml_err(root, d, "missing %c", q);
+						}
+
+						for (j = 1; a && a[j] && strcmp(a[j], attr[l]); j += 3);
+						attr[l + 1] = switch_xml_decode(attr[l + 1], root->ent, (a && a[j]) ? *a[j + 2] : ' ');
+						if (attr[l + 1] < d || attr[l + 1] > s)
+							attr[l + 3][l / 2] = SWITCH_XML_TXTM;	// value malloced
+					}
+				}
+				while (isspace((int) (*s)))
+					s++;
+			}
+
+			if (*s == '/') {	// self closing tag
+				*(s++) = '\0';
+				if ((*s && *s != '>') || (!*s && e != '>')) {
+					if (l)
+						switch_xml_free_attr(attr);
+					return switch_xml_err(root, d, "missing >");
+				}
+				switch_xml_open_tag(root, d, attr);
+				switch_xml_close_tag(root, d, s);
+			} else if ((q = *s) == '>' || (!*s && e == '>')) {	// open tag
+				*s = '\0';		// temporarily null terminate tag name
+				switch_xml_open_tag(root, d, attr);
+				*s = q;
+			} else {
+				if (l)
+					switch_xml_free_attr(attr);
+				return switch_xml_err(root, d, "missing >");
+			}
+		} else if (*s == '/') {	// close tag
+			s += strcspn(d = s + 1, SWITCH_XML_WS ">") + 1;
+			if (!(q = *s) && e != '>')
+				return switch_xml_err(root, d, "missing >");
+			*s = '\0';			// temporarily null terminate tag name
+			if (switch_xml_close_tag(root, d, s))
+				return &root->xml;
+			if (isspace((int) (*s = q)))
+				s += strspn(s, SWITCH_XML_WS);
+		} else if (!strncmp(s, "!--", 3)) {	// xml comment
+			if (!(s = strstr(s + 3, "--")) || (*(s += 2) != '>' && *s) || (!*s && e != '>'))
+				return switch_xml_err(root, d, "unclosed <!--");
+		} else if (!strncmp(s, "![CDATA[", 8)) {	// cdata
+			if ((s = strstr(s, "]]>")))
+				switch_xml_char_content(root, d + 8, (s += 2) - d - 10, 'c');
+			else
+				return switch_xml_err(root, d, "unclosed <![CDATA[");
+		} else if (!strncmp(s, "!DOCTYPE", 8)) {	// dtd
+			for (l = 0; *s && ((!l && *s != '>') || (l && (*s != ']' || *(s + strspn(s + 1, SWITCH_XML_WS) + 1) != '>'))); l = (*s == '[') ? 1 : l)
+				s += strcspn(s + 1, "[]>") + 1;
+			if (!*s && e != '>')
+				return switch_xml_err(root, d, "unclosed <!DOCTYPE");
+			d = (l) ? strchr(d, '[') + 1 : d;
+			if (l && !switch_xml_internal_dtd(root, d, s++ - d))
+				return &root->xml;
+		} else if (*s == '?') {	// <?...?> processing instructions
+			do {
+				s = strchr(s, '?');
+			} while (s && *(++s) && *s != '>');
+			if (!s || (!*s && e != '>'))
+				return switch_xml_err(root, d, "unclosed <?");
+			else
+				switch_xml_proc_inst(root, d + 1, s - d - 2);
+		} else
+			return switch_xml_err(root, d, "unexpected <");
+
+		if (!s || !*s)
+			break;
+		*s = '\0';
+		d = ++s;
+		if (*s && *s != '<') {	// tag character content
+			while (*s && *s != '<')
+				s++;
+			if (*s)
+				switch_xml_char_content(root, d, s - d, '&');
+			else
+				break;
+		} else if (!*s)
+			break;
+	}
+
+	if (!root->cur)
+		return &root->xml;
+	else if (!root->cur->name)
+		return switch_xml_err(root, d, "root tag missing");
+	else
+		return switch_xml_err(root, d, "unclosed tag <%s>", root->cur->name);
+}
+
+// Wrapper for switch_xml_parse_str() that accepts a file stream. Reads the entire
+// stream into memory and then parses it. For xml files, use switch_xml_parse_file()
+// or switch_xml_parse_fd()
+SWITCH_DECLARE(switch_xml_t) switch_xml_parse_fp(FILE * fp)
+{
+	switch_xml_root_t root;
+	switch_size_t l, len = 0;
+	char *s;
+
+	if (!(s = malloc(SWITCH_XML_BUFSIZE)))
+		return NULL;
+	do {
+		len += (l = fread((s + len), 1, SWITCH_XML_BUFSIZE, fp));
+		if (l == SWITCH_XML_BUFSIZE)
+			s = realloc(s, len + SWITCH_XML_BUFSIZE);
+	} while (s && l == SWITCH_XML_BUFSIZE);
+
+	if (!s)
+		return NULL;
+	root = (switch_xml_root_t) switch_xml_parse_str(s, len);
+	root->dynamic = 1;			// so we know to free s in switch_xml_free()
+	return &root->xml;
+}
+
+// A wrapper for switch_xml_parse_str() that accepts a file descriptor. First
+// attempts to mem map the file. Failing that, reads the file into memory.
+// Returns NULL on failure.
+SWITCH_DECLARE(switch_xml_t) switch_xml_parse_fd(int fd)
+{
+	switch_xml_root_t root;
+	struct stat st;
+	switch_size_t l;
+	void *m;
+
+	if (fd < 0)
+		return NULL;
+	fstat(fd, &st);
+
+#ifdef HAVE_MMAP
+	l = (st.st_size + sysconf(_SC_PAGESIZE) - 1) & ~(sysconf(_SC_PAGESIZE) - 1);
+	if ((m = mmap(NULL, l, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0)) != MAP_FAILED) {
+		madvise(m, l, MADV_SEQUENTIAL);	// optimize for sequential access
+		root = (switch_xml_root_t) switch_xml_parse_str(m, st.st_size);
+		madvise(m, root->len = l, MADV_NORMAL);	// put it back to normal
+	} else {					// mmap failed, read file into memory
+#endif // HAVE_MMAP
+		l = read(fd, m = malloc(st.st_size), st.st_size);
+		root = (switch_xml_root_t) switch_xml_parse_str(m, l);
+		root->dynamic = 1;		// so we know to free s in switch_xml_free()
+#ifdef HAVE_MMAP
+	}
+#endif // HAVE_MMAP
+	return &root->xml;
+}
+
+static switch_size_t read_line(int fd, char *buf, switch_size_t len)
+{
+	char c, *p;
+	int cur;
+	switch_size_t total = 0;
+
+	p = buf;
+	while (total + sizeof(c) < len && (cur = read(fd, &c, sizeof(c))) > 0) {
+		total += cur;
+		*p++ = c;
+		if (c == '\n') {
+			break;
+		}
+	}
+
+	*p++ = '\0';
+	return total;
+}
+
+static char *expand_vars(char *buf, char *ebuf, switch_size_t elen, switch_size_t *newlen)
+{
+	char *var, *val;
+	char *rp = buf;
+	char *wp = ebuf;
+	char *ep = ebuf + elen - 1;
+
+	if (!(var = strstr(rp, "$${"))) {
+		*newlen = strlen(buf);
+		return buf;
+	}
+
+	while (*rp && wp < ep) {
+
+		if (*rp == '$' && *(rp + 1) == '$' && *(rp + 2) == '{') {
+			char *e = strchr(rp, '}');
+
+			if (e) {
+				rp += 3;
+				var = rp;
+				*e++ = '\0';
+				rp = e;
+				if ((val = switch_core_get_variable(var))) {
+					char *p;
+					for (p = val; p && *p && wp <= ep; p++) {
+						*wp++ = *p;
+					}
+				}
+			}
+
+		}
+
+		*wp++ = *rp++;
+	}
+	*wp++ = '\0';
+	*newlen = strlen(ebuf);
+
+	return ebuf;
+
+}
+
+static int preprocess(const char *file, int write_fd, int rlevel)
+{
+	int read_fd = -1;
+	switch_size_t cur = 0, ml = 0;
+	char *q, *cmd, buf[2048], ebuf[8192];
+
+	if ((read_fd = open(file, O_RDONLY, 0)) < 0) {
+		return read_fd;
+	}
+
+	if (rlevel > 100) {
+		return -1;
+	}
+
+	while ((cur = read_line(read_fd, buf, sizeof(buf))) > 0) {
+		char *arg, *e;
+		char *bp = expand_vars(buf, ebuf, sizeof(ebuf), &cur);
+
+		/* we ignore <include> or </include> for the sake of validators */
+		if (strstr(buf, "<include>") || strstr(buf, "</include>")) {
+			continue;
+		}
+
+		if (ml) {
+			if ((e = strstr(buf, "-->"))) {
+				ml = 0;
+				bp = e + 3;
+				cur = strlen(bp);
+			} else {
+				continue;
+			}
+		}
+
+		if ((cmd = strstr(bp, "<!--#"))) {
+			if(write(write_fd, bp, (unsigned) (cmd - bp)) != (cmd - bp)) {
+				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Short write!\n", err);
+			}
+			if ((e = strstr(cmd, "-->"))) {
+				*e = '\0';
+				e += 3;
+				if(write(write_fd, e, (unsigned) strlen(e)) != (unsigned) strlen(e)) {
+					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Short write!\n", err);
+				}
+			} else {
+				ml++;
+			}
+
+			cmd += 5;
+			if ((e = strchr(cmd, '\r')) || (e = strchr(cmd, '\n'))) {
+				*e = '\0';
+			}
+
+			if ((arg = strchr(cmd, ' '))) {
+				*arg++ = '\0';
+				if ((q = strchr(arg, '"'))) {
+					char *qq = q + 1;
+
+					if ((qq = strchr(qq, '"'))) {
+						*qq = '\0';
+						arg = q + 1;
+					}
+				}
+
+				if (!strcasecmp(cmd, "set")) {
+					char *name = arg;
+					char *val = strchr(name, '=');
+
+					if (val) {
+						char *ve = val++;
+						while (*val && *val == ' ') {
+							val++;
+						}
+						*ve-- = '\0';
+						while (*ve && *ve == ' ') {
+							*ve-- = '\0';
+						}
+					}
+
+					if (name && val) {
+						switch_core_set_variable(name, val);
+					}
+
+				} else if (!strcasecmp(cmd, "include")) {
+					char *fme = NULL, *ifile = arg;
+
+					if (!switch_is_file_path(ifile)) {
+						fme = switch_mprintf("%s%s%s", SWITCH_GLOBAL_dirs.conf_dir, SWITCH_PATH_SEPARATOR, arg);
+						ifile = fme;
+					}
+					if (preprocess(ifile, write_fd, rlevel + 1) < 0) {
+						fprintf(stderr, "Error including %s (%s)\n", ifile, strerror(errno));
+					}
+					switch_safe_free(fme);
+				}				/* else NO OP */
+			}
+
+			continue;
+		}
+
+		if(write(write_fd, bp, (unsigned) cur) != (unsigned) cur) {
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Short write!\n", err);
+		}
+
+	}
+
+	close(read_fd);
+	return write_fd;
+}
+
+SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file_simple(const char *file)
+{
+	int fd = -1;
+	struct stat st;
+	switch_size_t l;
+	void *m;
+	switch_xml_root_t root;
+
+	if ((fd = open(file, O_RDONLY, 0)) > -1) {
+		fstat(fd, &st);
+		l = read(fd, m = malloc(st.st_size), st.st_size);
+		root = (switch_xml_root_t) switch_xml_parse_str(m, l);
+		root->dynamic = 1;
+		close(fd);
+		return &root->xml;
+	}
+	
+	return NULL;
+}
+
+SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file(const char *file)
+{
+	int fd = -1, write_fd = -1;
+	switch_xml_t xml = NULL;
+	char *new_file = NULL;
+	const char *abs;
+
+	if ((abs = strrchr(file, '/')) || (abs = strrchr(file, '\\'))) {
+		abs++;
+	} else {
+		abs = file;
+	}
+	
+	if (!(new_file = switch_mprintf("%s%s%s.fsxml", SWITCH_GLOBAL_dirs.log_dir, SWITCH_PATH_SEPARATOR, abs))) {
+		return NULL;
+	}
+
+	if ((write_fd = open(new_file, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) < 0) {
+		goto done;
+	}
+
+	if (preprocess(file, write_fd, 0) > -1) {
+		close(write_fd);
+		write_fd = -1;
+		if ((fd = open(new_file, O_RDONLY, 0)) > -1) {
+			if ((xml = switch_xml_parse_fd(fd))) {
+				xml->free_path = new_file;
+				new_file = NULL;
+			}
+			close(fd);
+			fd = -1;
+		}
+	}
+
+  done:
+	if (write_fd > -1) {
+		close(write_fd);
+	}
+	if (fd > -1) {
+		close(fd);
+	}
+	switch_safe_free(new_file);
+	return xml;
+}
+
+
+SWITCH_DECLARE(switch_status_t) switch_xml_locate(const char *section,
+												  const char *tag_name,
+												  const char *key_name, const char *key_value, switch_xml_t * root, switch_xml_t * node,
+												  const char *params)
+{
+	switch_xml_t conf = NULL;
+	switch_xml_t tag = NULL;
+	switch_xml_t xml = NULL;
+	switch_xml_binding_t *binding;
+	uint8_t loops = 0;
+
+	switch_mutex_lock(XML_LOCK);
+
+	for (binding = BINDINGS; binding; binding = binding->next) {
+		switch_xml_section_t sections = switch_xml_parse_section_string(section);
+
+		if (binding->sections && !(sections & binding->sections)) {
+			continue;
+		}
+
+		if ((xml = binding->function(section, tag_name, key_name, key_value, params, binding->user_data))) {
+			const char *err = NULL;
+
+			err = switch_xml_error(xml);
+			if (switch_strlen_zero(err)) {
+				if ((conf = switch_xml_find_child(xml, "section", "name", "result"))) {
+					switch_xml_t p;
+					const char *aname;
+
+					if ((p = switch_xml_child(conf, "result"))) {
+						aname = switch_xml_attr(p, "status");
+						if (aname && !strcasecmp(aname, "not found")) {
+							switch_xml_free(xml);
+							xml = NULL;
+							continue;
+						}
+					}
+				}
+				break;
+			} else {
+				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error[%s]\n", err);
+				switch_xml_free(xml);
+				xml = NULL;
+			}
+		}
+	}
+	switch_mutex_unlock(XML_LOCK);
+
+	for (;;) {
+		if (!xml) {
+			if (!(xml = switch_xml_root())) {
+				*node = NULL;
+				*root = NULL;
+				return SWITCH_STATUS_FALSE;
+			}
+		}
+
+		if ((conf = switch_xml_find_child(xml, "section", "name", section)) && (tag = switch_xml_find_child(conf, tag_name, key_name, key_value))) {
+			*node = tag;
+			*root = xml;
+			return SWITCH_STATUS_SUCCESS;
+		} else {
+			switch_xml_free(xml);
+			xml = NULL;
+			*node = NULL;
+			*root = NULL;
+			if (loops++ > 1) {
+				break;
+			}
+		}
+	}
+
+	return SWITCH_STATUS_FALSE;
+}
+
+SWITCH_DECLARE(switch_status_t) switch_xml_locate_domain(char *domain_name, char *params, switch_xml_t *root, switch_xml_t *domain)
+{
+	char my_params[512];
+	*domain = NULL;
+
+	if (!params) {
+		snprintf(my_params, sizeof(my_params), "domain=%s", domain_name);
+		params = my_params;
+	}
+
+	return switch_xml_locate("directory", "domain", "name", domain_name, root, domain, params);
+}
+
+
+SWITCH_DECLARE(switch_status_t) switch_xml_locate_user(char *user_name, char *domain_name, 
+													   char *ip, 
+													   switch_xml_t *root,
+													   switch_xml_t *domain,
+													   switch_xml_t *user)
+{
+	char params[1024] = "";
+	switch_status_t status;
+	*root = NULL;
+	*user = NULL;
+	*domain = NULL;
+	
+	snprintf(params, sizeof(params), "user=%s&domain=%s&ip=%s", switch_str_nil(user_name), switch_str_nil(domain_name), switch_str_nil(ip));
+	if ((status = switch_xml_locate_domain(domain_name, params, root, domain)) != SWITCH_STATUS_SUCCESS) {
+		return status;
+	}
+	
+	if (ip) {
+		if ((*user = switch_xml_find_child(*domain, "user", "ip", ip))) {
+			return SWITCH_STATUS_SUCCESS;
+		}
+	} 
+
+	if (user_name) {
+		if (!(*user = switch_xml_find_child(*domain, "user", "id", user_name))) {
+			return SWITCH_STATUS_FALSE;
+		}
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+	return SWITCH_STATUS_FALSE;
+}
+
+
+SWITCH_DECLARE(switch_xml_t) switch_xml_root(void)
+{
+	lock_count++;
+	switch_thread_rwlock_rdlock(RWLOCK);
+	return MAIN_XML_ROOT;
+}
+
+SWITCH_DECLARE(switch_xml_t) switch_xml_open_root(uint8_t reload, const char **err)
+{
+	char path_buf[1024];
+	uint8_t hasmain = 0, errcnt = 0;
+	switch_xml_t new_main;
+
+	switch_mutex_lock(XML_LOCK);
+
+	if (MAIN_XML_ROOT) {
+		hasmain++;
+
+		if (!reload) {
+			switch_mutex_unlock(XML_LOCK);
+			return switch_xml_root();
+		}
+		switch_thread_rwlock_wrlock(RWLOCK);
+	}
+
+	snprintf(path_buf, sizeof(path_buf), "%s%s%s", SWITCH_GLOBAL_dirs.conf_dir, SWITCH_PATH_SEPARATOR, "freeswitch.xml");
+	if ((new_main = switch_xml_parse_file(path_buf))) {
+		*err = switch_xml_error(new_main);
+
+		if (!switch_strlen_zero(*err)) {
+			switch_xml_free(new_main);
+			new_main = NULL;
+			errcnt++;
+		} else {
+			switch_xml_t old_root;
+			*err = "Success";
+			old_root = MAIN_XML_ROOT;
+			MAIN_XML_ROOT = new_main;
+			switch_set_flag(MAIN_XML_ROOT, SWITCH_XML_ROOT);
+			switch_xml_free(old_root);
+		}
+	} else {
+		*err = "Cannot Open log directory or XML Root!";
+		errcnt++;
+	}
+
+	if (hasmain) {
+		switch_thread_rwlock_unlock(RWLOCK);
+	}
+	switch_mutex_unlock(XML_LOCK);
+
+	return errcnt == 0 ? switch_xml_root() : NULL;
+}
+
+
+SWITCH_DECLARE(switch_status_t) switch_xml_init(switch_memory_pool_t *pool, const char **err)
+{
+	switch_xml_t xml;
+	XML_MEMORY_POOL = pool;
+	*err = "Success";
+
+	switch_mutex_init(&XML_LOCK, SWITCH_MUTEX_NESTED, XML_MEMORY_POOL);
+	switch_thread_rwlock_create(&RWLOCK, XML_MEMORY_POOL);
+
+	assert(pool != NULL);
+
+	if ((xml = switch_xml_open_root(FALSE, err))) {
+		switch_xml_free(xml);
+		return SWITCH_STATUS_SUCCESS;
+	} else {
+		return SWITCH_STATUS_FALSE;
+	}
+}
+
+SWITCH_DECLARE(switch_status_t) switch_xml_destroy(void)
+{
+	if (MAIN_XML_ROOT) {
+		switch_xml_t xml = MAIN_XML_ROOT;
+		MAIN_XML_ROOT = NULL;
+		switch_xml_free(xml);
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+	return SWITCH_STATUS_FALSE;
+}
+
+SWITCH_DECLARE(switch_xml_t) switch_xml_open_cfg(const char *file_path, switch_xml_t * node, const char *params)
+{
+	switch_xml_t xml = NULL, cfg = NULL;
+
+	*node = NULL;
+
+	assert(MAIN_XML_ROOT != NULL);
+
+	if (switch_xml_locate("configuration", "configuration", "name", file_path, &xml, &cfg, params) == SWITCH_STATUS_SUCCESS) {
+		*node = cfg;
+	}
+
+	return xml;
+
+}
+
+
+// Encodes ampersand sequences appending the results to *dst, reallocating *dst
+// if length excedes max. a is non-zero for attribute encoding. Returns *dst
+static char *switch_xml_ampencode(const char *s, switch_size_t len, char **dst, switch_size_t *dlen, switch_size_t *max, short a)
+{
+	const char *e = NULL;
+
+	if (len) {
+		e = s + len;
+	}
+
+	while (s != e) {
+		while (*dlen + 10 > *max)
+			*dst = realloc(*dst, *max += SWITCH_XML_BUFSIZE);
+
+		switch (*s) {
+		case '\0':
+			return *dst;
+		case '&':
+			*dlen += sprintf(*dst + *dlen, "&amp;");
+			break;
+		case '<':
+			*dlen += sprintf(*dst + *dlen, "&lt;");
+			break;
+		case '>':
+			*dlen += sprintf(*dst + *dlen, "&gt;");
+			break;
+		case '"':
+			*dlen += sprintf(*dst + *dlen, (a) ? "&quot;" : "\"");
+			break;
+		case '\n':
+			*dlen += sprintf(*dst + *dlen, (a) ? "&#xA;" : "\n");
+			break;
+		case '\t':
+			*dlen += sprintf(*dst + *dlen, (a) ? "&#x9;" : "\t");
+			break;
+		case '\r':
+			*dlen += sprintf(*dst + *dlen, "&#xD;");
+			break;
+		default:
+			(*dst)[(*dlen)++] = *s;
+		}
+		s++;
+	}
+	return *dst;
+}
+
+#define XML_INDENT "  "
+// Recursively converts each tag to xml appending it to *s. Reallocates *s if
+// its length excedes max. start is the location of the previous tag in the
+// parent tag's character content. Returns *s.
+static char *switch_xml_toxml_r(switch_xml_t xml, char **s, switch_size_t *len, switch_size_t *max, switch_size_t start, char ***attr, uint32_t * count)
+{
+	int i, j;
+	char *txt = (xml->parent) ? xml->parent->txt : "";
+	switch_size_t off = 0;
+	uint32_t lcount = 0;
+
+	// parent character content up to this tag
+	*s = switch_xml_ampencode(txt + start, xml->off - start, s, len, max, 0);
+
+	while (*len + strlen(xml->name) + 5 + (strlen(XML_INDENT) * (*count)) + 1 > *max)	// reallocate s
+		*s = realloc(*s, *max += SWITCH_XML_BUFSIZE);
+
+	if (*(*s + (*len) - 1) == '>') {
+		*len += sprintf(*s + *len, "\n");	// indent
+	}
+	for (lcount = 0; lcount < *count; lcount++) {
+		*len += sprintf(*s + *len, "%s", XML_INDENT);	// indent
+	}
+
+	*len += sprintf(*s + *len, "<%s", xml->name);	// open tag
+	for (i = 0; xml->attr[i]; i += 2) {	// tag attributes
+		if (switch_xml_attr(xml, xml->attr[i]) != xml->attr[i + 1])
+			continue;
+		while (*len + strlen(xml->attr[i]) + 7 + (strlen(XML_INDENT) * (*count)) > *max)	// reallocate s
+			*s = realloc(*s, *max += SWITCH_XML_BUFSIZE);
+
+		*len += sprintf(*s + *len, " %s=\"", xml->attr[i]);
+		switch_xml_ampencode(xml->attr[i + 1], 0, s, len, max, 1);
+		*len += sprintf(*s + *len, "\"");
+	}
+
+	for (i = 0; attr[i] && strcmp(attr[i][0], xml->name); i++);
+	for (j = 1; attr[i] && attr[i][j]; j += 3) {	// default attributes
+		if (!attr[i][j + 1] || switch_xml_attr(xml, attr[i][j]) != attr[i][j + 1])
+			continue;			// skip duplicates and non-values
+		while (*len + strlen(attr[i][j]) + 8 + (strlen(XML_INDENT) * (*count)) > *max)	// reallocate s
+			*s = realloc(*s, *max += SWITCH_XML_BUFSIZE);
+
+		*len += sprintf(*s + *len, " %s=\"", attr[i][j]);
+		switch_xml_ampencode(attr[i][j + 1], 0, s, len, max, 1);
+		*len += sprintf(*s + *len, "\"");
+	}
+
+	*len += sprintf(*s + *len, (xml->child || xml->txt) ? ">" : "/>\n");
+
+	if (xml->child) {
+		(*count)++;
+		*s = switch_xml_toxml_r(xml->child, s, len, max, 0, attr, count);
+
+	} else {
+		*s = switch_xml_ampencode(xml->txt, 0, s, len, max, 0);	//data
+	}
+
+	while (*len + strlen(xml->name) + 5 + (strlen(XML_INDENT) * (*count)) > *max)	// reallocate s
+		*s = realloc(*s, *max += SWITCH_XML_BUFSIZE);
+
+
+	if (xml->child || xml->txt) {
+		if (*(*s + (*len) - 1) == '\n') {
+			for (lcount = 0; lcount < *count; lcount++) {
+				*len += sprintf(*s + *len, "%s", XML_INDENT);	// indent
+			}
+		}
+		*len += sprintf(*s + (*len), "</%s>\n", xml->name);	// close tag
+	}
+
+	while (txt[off] && off < xml->off)
+		off++;					// make sure off is within bounds
+
+	if (xml->ordered) {
+		return switch_xml_toxml_r(xml->ordered, s, len, max, off, attr, count);
+
+	} else {
+		if (*count > 0)
+			(*count)--;
+		return switch_xml_ampencode(txt + off, 0, s, len, max, 0);
+	}
+}
+
+// converts an switch_xml structure back to xml, returning a string of xml date that
+// must be freed
+SWITCH_DECLARE(char *) switch_xml_toxml(switch_xml_t xml)
+{
+	switch_xml_t p = (xml) ? xml->parent : NULL, o = (xml) ? xml->ordered : NULL;
+	switch_xml_root_t root = (switch_xml_root_t) xml;
+	switch_size_t len = 0, max = SWITCH_XML_BUFSIZE;
+	char *s = strcpy(malloc(max), ""), *t, *n;
+	int i, j, k;
+	uint32_t count = 0;
+
+	if (!xml || !xml->name)
+		return realloc(s, len + 1);
+	while (root->xml.parent)
+		root = (switch_xml_root_t) root->xml.parent;	// root tag
+
+	for (i = 0; !p && root->pi[i]; i++) {	// pre-root processing instructions
+		for (k = 2; root->pi[i][k - 1]; k++);
+		for (j = 1; (n = root->pi[i][j]); j++) {
+			if (root->pi[i][k][j - 1] == '>')
+				continue;		// not pre-root
+			while (len + strlen(t = root->pi[i][0]) + strlen(n) + 7 > max)
+				s = realloc(s, max += SWITCH_XML_BUFSIZE);
+			len += sprintf(s + len, "<?%s%s%s?>", t, *n ? " " : "", n);
+		}
+	}
+
+	xml->parent = xml->ordered = NULL;
+	s = switch_xml_toxml_r(xml, &s, &len, &max, 0, root->attr, &count);
+	xml->parent = p;
+	xml->ordered = o;
+
+	for (i = 0; !p && root->pi[i]; i++) {	// post-root processing instructions
+		for (k = 2; root->pi[i][k - 1]; k++);
+		for (j = 1; (n = root->pi[i][j]); j++) {
+			if (root->pi[i][k][j - 1] == '<')
+				continue;		// not post-root
+			while (len + strlen(t = root->pi[i][0]) + strlen(n) + 7 > max)
+				s = realloc(s, max += SWITCH_XML_BUFSIZE);
+			len += sprintf(s + len, "\n<?%s%s%s?>", t, *n ? " " : "", n);
+		}
+	}
+	return realloc(s, len + 1);
+}
+
+// free the memory allocated for the switch_xml structure
+SWITCH_DECLARE(void) switch_xml_free(switch_xml_t xml)
+{
+	switch_xml_root_t root = (switch_xml_root_t) xml;
+	int i, j;
+	char **a, *s;
+
+
+	if (!xml)
+		return;
+
+	if (switch_test_flag(xml, SWITCH_XML_ROOT)) {
+		if (lock_count > 0) {
+			switch_thread_rwlock_unlock(RWLOCK);
+			lock_count--;
+		}
+	}
+
+	if (xml == MAIN_XML_ROOT) {
+		return;
+	}
+
+	if (xml->free_path) {
+		unlink(xml->free_path);
+		switch_safe_free(xml->free_path);
+	}
+
+	switch_xml_free(xml->child);
+	switch_xml_free(xml->ordered);
+
+	if (!xml->parent) {			// free root tag allocations
+		for (i = 10; root->ent[i]; i += 2)	// 0 - 9 are default entites (<>&"')
+			if ((s = root->ent[i + 1]) < root->s || s > root->e)
+				free(s);
+		free(root->ent);		// free list of general entities
+
+		for (i = 0; (a = root->attr[i]); i++) {
+			for (j = 1; a[j++]; j += 2)	// free malloced attribute values
+				if (a[j] && (a[j] < root->s || a[j] > root->e))
+					free(a[j]);
+			free(a);
+		}
+		if (root->attr[0])
+			free(root->attr);	// free default attribute list
+
+		for (i = 0; root->pi[i]; i++) {
+			for (j = 1; root->pi[i][j]; j++);
+			free(root->pi[i][j + 1]);
+			free(root->pi[i]);
+		}
+		if (root->pi[0])
+			free(root->pi);		// free processing instructions
+
+		if (root->dynamic == 1)
+			free(root->m);		// malloced xml data
+#ifdef HAVE_MMAP
+		else if (root->len)
+			munmap(root->m, root->len);	// mem mapped xml data
+#endif // HAVE_MMAP
+		if (root->u)
+			free(root->u);		// utf8 conversion
+	}
+
+	switch_xml_free_attr(xml->attr);	// tag attributes
+	if ((xml->flags & SWITCH_XML_TXTM))
+		free(xml->txt);			// character content
+	if ((xml->flags & SWITCH_XML_NAMEM))
+		free(xml->name);		// tag name
+	free(xml);
+}
+
+// return parser error message or empty string if none
+SWITCH_DECLARE(const char *) switch_xml_error(switch_xml_t xml)
+{
+	while (xml && xml->parent)
+		xml = xml->parent;		// find root tag
+	return (xml) ? ((switch_xml_root_t) xml)->err : "";
+}
+
+// returns a new empty switch_xml structure with the given root tag name
+SWITCH_DECLARE(switch_xml_t) switch_xml_new(const char *name)
+{
+	static char *ent[] = { "lt;", "&#60;", "gt;", "&#62;", "quot;", "&#34;",
+		"apos;", "&#39;", "amp;", "&#38;", NULL
+	};
+	switch_xml_root_t root = (switch_xml_root_t) memset(malloc(sizeof(struct switch_xml_root)),
+														'\0', sizeof(struct switch_xml_root));
+	root->xml.name = (char *) name;
+	root->cur = &root->xml;
+	strcpy(root->err, root->xml.txt = "");
+	root->ent = memcpy(malloc(sizeof(ent)), ent, sizeof(ent));
+	root->attr = root->pi = (char ***) (root->xml.attr = SWITCH_XML_NIL);
+	return &root->xml;
+}
+
+// inserts an existing tag into an switch_xml structure
+SWITCH_DECLARE(switch_xml_t) switch_xml_insert(switch_xml_t xml, switch_xml_t dest, switch_size_t off)
+{
+	switch_xml_t cur, prev, head;
+
+	xml->next = xml->sibling = xml->ordered = NULL;
+	xml->off = off;
+	xml->parent = dest;
+
+	if ((head = dest->child)) {	// already have sub tags
+		if (head->off <= off) {	// not first subtag
+			for (cur = head; cur->ordered && cur->ordered->off <= off; cur = cur->ordered);
+			xml->ordered = cur->ordered;
+			cur->ordered = xml;
+		} else {				// first subtag
+			xml->ordered = head;
+			dest->child = xml;
+		}
+
+		for (cur = head, prev = NULL; cur && strcmp(cur->name, xml->name); prev = cur, cur = cur->sibling);	// find tag type
+		if (cur && cur->off <= off) {	// not first of type
+			while (cur->next && cur->next->off <= off)
+				cur = cur->next;
+			xml->next = cur->next;
+			cur->next = xml;
+		} else {				// first tag of this type
+			if (prev && cur)
+				prev->sibling = cur->sibling;	// remove old first
+			xml->next = cur;	// old first tag is now next
+			for (cur = head, prev = NULL; cur && cur->off <= off; prev = cur, cur = cur->sibling);	// new sibling insert point
+			xml->sibling = cur;
+			if (prev)
+				prev->sibling = xml;
+		}
+	} else
+		dest->child = xml;		// only sub tag
+
+	return xml;
+}
+
+// Adds a child tag. off is the offset of the child tag relative to the start
+// of the parent tag's character content. Returns the child tag
+SWITCH_DECLARE(switch_xml_t) switch_xml_add_child(switch_xml_t xml, const char *name, switch_size_t off)
+{
+	switch_xml_t child;
+
+	if (!xml)
+		return NULL;
+	child = (switch_xml_t) memset(malloc(sizeof(struct switch_xml)), '\0', sizeof(struct switch_xml));
+	child->name = (char *) name;
+	child->attr = SWITCH_XML_NIL;
+	child->off = off;
+	child->parent = xml;
+	child->txt = "";
+
+	return switch_xml_insert(child, xml, off);
+}
+
+// sets the character content for the given tag and returns the tag
+SWITCH_DECLARE(switch_xml_t) switch_xml_set_txt(switch_xml_t xml, const char *txt)
+{
+	if (!xml)
+		return NULL;
+	if (xml->flags & SWITCH_XML_TXTM)
+		free(xml->txt);			// existing txt was malloced
+	xml->flags &= ~SWITCH_XML_TXTM;
+	xml->txt = (char *) txt;
+	return xml;
+}
+
+// Sets the given tag attribute or adds a new attribute if not found. A value
+// of NULL will remove the specified attribute.  Returns the tag given
+SWITCH_DECLARE(switch_xml_t) switch_xml_set_attr(switch_xml_t xml, const char *name, const char *value)
+{
+	int l = 0, c;
+
+	if (!xml)
+		return NULL;
+	while (xml->attr[l] && strcmp(xml->attr[l], name))
+		l += 2;
+	if (!xml->attr[l]) {		// not found, add as new attribute
+		if (!value)
+			return xml;			// nothing to do
+		if (xml->attr == SWITCH_XML_NIL) {	// first attribute
+			xml->attr = malloc(4 * sizeof(char *));
+			xml->attr[1] = strdup("");	// empty list of malloced names/vals
+		} else
+			xml->attr = realloc(xml->attr, (l + 4) * sizeof(char *));
+
+		xml->attr[l] = (char *) name;	// set attribute name
+		xml->attr[l + 2] = NULL;	// null terminate attribute list
+		xml->attr[l + 3] = realloc(xml->attr[l + 1], (c = (int) strlen(xml->attr[l + 1])) + 2);
+		strcpy(xml->attr[l + 3] + c, " ");	// set name/value as not malloced
+		if (xml->flags & SWITCH_XML_DUP)
+			xml->attr[l + 3][c] = SWITCH_XML_NAMEM;
+	} else if (xml->flags & SWITCH_XML_DUP)
+		free((char *) name);	// name was strduped
+
+	for (c = l; xml->attr[c]; c += 2);	// find end of attribute list
+	if (xml->attr[c + 1][l / 2] & SWITCH_XML_TXTM)
+		free(xml->attr[l + 1]);	//old val
+	if (xml->flags & SWITCH_XML_DUP)
+		xml->attr[c + 1][l / 2] |= SWITCH_XML_TXTM;
+	else
+		xml->attr[c + 1][l / 2] &= ~SWITCH_XML_TXTM;
+
+	if (value)
+		xml->attr[l + 1] = (char *) value;	// set attribute value
+	else {						// remove attribute
+		if (xml->attr[c + 1][l / 2] & SWITCH_XML_NAMEM)
+			free(xml->attr[l]);
+		memmove(xml->attr + l, xml->attr + l + 2, (c - l + 2) * sizeof(char *));
+		xml->attr = realloc(xml->attr, (c + 2) * sizeof(char *));
+		memmove(xml->attr[c + 1] + (l / 2), xml->attr[c + 1] + (l / 2) + 1, (c / 2) - (l / 2));	// fix list of which name/vals are malloced
+	}
+	xml->flags &= ~SWITCH_XML_DUP;	// clear strdup() flag
+
+	return xml;
+}
+
+// sets a flag for the given tag and returns the tag
+SWITCH_DECLARE(switch_xml_t) switch_xml_set_flag(switch_xml_t xml, switch_xml_flag_t flag)
+{
+	if (xml)
+		xml->flags |= flag;
+	return xml;
+}
+
+// removes a tag along with its subtags without freeing its memory
+SWITCH_DECLARE(switch_xml_t) switch_xml_cut(switch_xml_t xml)
+{
+	switch_xml_t cur;
+
+	if (!xml)
+		return NULL;			// nothing to do
+	if (xml->next)
+		xml->next->sibling = xml->sibling;	// patch sibling list
+
+	if (xml->parent) {			// not root tag
+		cur = xml->parent->child;	// find head of subtag list
+		if (cur == xml)
+			xml->parent->child = xml->ordered;	// first subtag
+		else {					// not first subtag
+			while (cur->ordered != xml)
+				cur = cur->ordered;
+			cur->ordered = cur->ordered->ordered;	// patch ordered list
+
+			cur = xml->parent->child;	// go back to head of subtag list
+			if (strcmp(cur->name, xml->name)) {	// not in first sibling list
+				while (strcmp(cur->sibling->name, xml->name))
+					cur = cur->sibling;
+				if (cur->sibling == xml) {	// first of a sibling list
+					cur->sibling = (xml->next) ? xml->next : cur->sibling->sibling;
+				} else
+					cur = cur->sibling;	// not first of a sibling list
+			}
+
+			while (cur->next && cur->next != xml)
+				cur = cur->next;
+			if (cur->next)
+				cur->next = cur->next->next;	// patch next list
+		}
+	}
+	xml->ordered = xml->sibling = xml->next = NULL;	// prevent switch_xml_free() from clobbering ordered list
+	return xml;
+}
+
+/* For Emacs:
+ * Local Variables:
+ * mode:c
+ * indent-tabs-mode:t
+ * tab-width:4
+ * c-basic-offset:4
+ * End:
+ * For VIM:
+ * vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
+ */



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