Index: pbx.c
===================================================================
RCS file: /usr/cvsroot/asterisk/pbx.c,v
retrieving revision 1.298
diff -u -r1.298 pbx.c
--- pbx.c	8 Nov 2005 04:13:18 -0000	1.298
+++ pbx.c	8 Nov 2005 23:02:33 -0000
@@ -5897,6 +5897,26 @@
 	return NULL;
 }
 
+void pbx_builtin_pushvar_helper(struct ast_channel *chan, const char *name, const char *value)
+{
+	struct ast_var_t *newvariable;
+	struct varshead *headp;
+
+	if (name[strlen(name)-1] == ')') {
+		ast_log(LOG_WARNING, "Cannot push a value onto a function\n");
+		return ast_func_write(chan, name, value);
+	}
+
+	headp = (chan) ? &chan->varshead : &globals;
+
+	if (value) {
+		if ((option_verbose > 1) && (headp == &globals))
+			ast_verbose(VERBOSE_PREFIX_2 "Setting global variable '%s' to '%s'\n", name, value);
+		newvariable = ast_var_assign(name, value);	
+		AST_LIST_INSERT_HEAD(headp, newvariable, entries);
+	}
+}
+
 void pbx_builtin_setvar_helper(struct ast_channel *chan, const char *name, const char *value)
 {
 	struct ast_var_t *newvariable;
Index: include/asterisk/pbx.h
===================================================================
RCS file: /usr/cvsroot/asterisk/include/asterisk/pbx.h,v
retrieving revision 1.55
diff -u -r1.55 pbx.h
--- include/asterisk/pbx.h	26 Oct 2005 23:11:36 -0000	1.55
+++ include/asterisk/pbx.h	8 Nov 2005 23:02:33 -0000
@@ -606,6 +606,7 @@
 
 int pbx_builtin_serialize_variables(struct ast_channel *chan, char *buf, size_t size);
 extern char *pbx_builtin_getvar_helper(struct ast_channel *chan, const char *name);
+extern void pbx_builtin_pushvar_helper(struct ast_channel *chan, const char *name, const char *value);
 extern void pbx_builtin_setvar_helper(struct ast_channel *chan, const char *name, const char *value);
 extern void pbx_retrieve_variable(struct ast_channel *c, const char *var, char **ret, char *workspace, int workspacelen, struct varshead *headp);
 extern void pbx_builtin_clear_globals(void);