From 0c8f0e8bdb35bf6bfb08649cab31c233428930cb Mon Sep 17 00:00:00 2001
From: "Kevin P. Fleming" <kpfleming@digium.com>
Date: Wed, 14 Sep 2005 01:36:15 +0000
Subject: extensive ENUM support update, including ENUMLOOKUP() dialplan
 function (issue #5201 with mods)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6579 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 funcs/func_enum.c | 174 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 174 insertions(+)
 create mode 100755 funcs/func_enum.c

(limited to 'funcs/func_enum.c')

diff --git a/funcs/func_enum.c b/funcs/func_enum.c
new file mode 100755
index 000000000..3128047e4
--- /dev/null
+++ b/funcs/func_enum.c
@@ -0,0 +1,174 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Enum Functions
+ *
+ * Copyright (C) 2005
+ *
+ * Oleksiy Krivoshey <oleksiyk@gmail.com>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#include <stdlib.h>
+
+#include "asterisk.h"
+
+#ifndef BUILTIN_FUNC
+#include "asterisk/module.h"
+#endif /* BUILTIN_FUNC */
+#include "asterisk/channel.h"
+#include "asterisk/pbx.h"
+#include "asterisk/utils.h"
+
+#include "asterisk/lock.h"
+#include "asterisk/file.h"
+#include "asterisk/logger.h"
+
+#include "asterisk/pbx.h"
+#include "asterisk/options.h"
+
+#include "asterisk/enum.h"
+
+static char* synopsis = "Syntax: ENUMLOOKUP(number[,Method-type[,options|record#[,zone-suffix]]])\n";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static char *function_enum(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
+{
+       int res=0;
+       char tech[80];
+       char dest[80] = "";
+       char *zone;
+       char *options;
+       struct localuser *u;
+       char *params[4];
+       char *p = data;
+       char *s;
+       int i = 0;
+
+
+       if (!data || ast_strlen_zero(data)) {
+               ast_log(LOG_WARNING, synopsis);
+               return "";
+       }
+
+       do {
+               if(i>3){
+                       ast_log(LOG_WARNING, synopsis);
+                       return "";
+               }
+               params[i++] = p;
+               p = strchr(p, '|');
+               if(p){
+                       *p = '\0';
+                       p++;
+               }
+       } while(p);
+
+       if(i < 1){
+               ast_log(LOG_WARNING, synopsis);
+               return "";
+       }
+
+       if( (i > 1 && strlen(params[1]) == 0) || i < 2){
+               ast_copy_string(tech, "sip", sizeof(tech));
+       } else {
+               ast_copy_string(tech, params[1], sizeof(tech));
+       }
+
+       if( (i > 3 && strlen(params[3]) == 0) || i<4){
+               zone = "e164.arpa";
+       } else {
+               zone = params[3];
+       }
+
+       if( (i > 2 && strlen(params[2]) == 0) || i<3){
+               options = "1";
+       } else {
+               options = params[2];
+       }
+
+       /* strip any '-' signs from number */
+       p = params[0];
+       /*
+       while(*p == '+'){
+               p++;
+       }
+       */
+       s = p;
+       i = 0;
+       while(*p && *s){
+               if(*s == '-'){
+                       s++;
+               } else {
+                       p[i++] = *s++;
+               }
+       }
+       p[i] = 0;
+
+       LOCAL_USER_ACF_ADD(u);
+
+       res = ast_get_enum(chan, p, dest, sizeof(dest), tech, sizeof(tech), zone, options);
+
+       LOCAL_USER_REMOVE(u);
+
+       p = strchr(dest, ':');
+       if(p && strncasecmp(tech, "ALL", sizeof(tech))) {
+               ast_copy_string(buf, p+1, sizeof(dest));
+       } else {
+               ast_copy_string(buf, dest, sizeof(dest));
+       }
+
+       return buf;
+}
+
+
+#ifndef BUILTIN_FUNC
+static
+#endif
+struct ast_custom_function enum_function = {
+       .name = "ENUMLOOKUP",
+       .synopsis = "ENUMLOOKUP allows for general or specific querying of NAPTR records"
+       " or counts of NAPTR types for ENUM or ENUM-like DNS pointers",
+       .syntax = "ENUMLOOKUP(number[,Method-type[,options|record#[,zone-suffix]]])",
+       .desc = "Option 'c' returns an integer count of the number of NAPTRs of a certain RR type.\n"
+       "Combination of 'c' and Method-type of 'ALL' will return a count of all NAPTRs for the record.\n"
+       "Defaults are: Method-type=sip, no options, record=1, zone-suffix=e164.arpa\n\n"
+       "For more information, see README.enum",
+       .read = function_enum,
+};
+
+#ifndef BUILTIN_FUNC
+
+static char *tdesc = "ENUMLOOKUP allows for general or specific querying of NAPTR records or counts of NAPTR types for ENUM or ENUM-like DNS pointers";
+
+int unload_module(void)
+{
+       return ast_custom_function_unregister(&enum_function);
+}
+
+int load_module(void)
+{
+       return ast_custom_function_register(&enum_function);
+}
+
+char *description(void)
+{
+       return tdesc;
+}
+
+int usecount(void)
+{
+       return 0;
+}
+
+char *key()
+{
+       return ASTERISK_GPL_KEY;
+}
+#endif /* BUILTIN_FUNC */
+
-- 
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