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libsua/sualibrary/sua/sua_dataname.cpp

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/***************************************************************************
sua_dataname.cpp - description
-------------------
begin : Tue Jan 8 2002
copyright : (C) 2002 by Lode Coene
email : lode.coene@siemens.atea.be
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
/*
* $Id: sua_dataname.cpp,v 1.4 2003/09/09 08:43:44 p82609 Exp $
*
* SUA implementation according to SUA draft issue 6.
*
* Author(s): Lode Coene
*
*
* Copyright (C) 2001 by Siemens Atea, Herentals, Belgium.
*
* Realized in co-operation between Siemens Atea and
* Siemens AG, Munich, Germany.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Contact: gery.verwimp@siemens.atea.be
* lode.coene@siemens.atea.be
*
* The alternative comment
* inspiration : Vicky
* "This module reuse some code, thus it will mostly reuse trouble."
*
* Purpose: This code-file defines the SUA database access functions for:
* SUA Name Object (host names/Global Titles):
* - initialise Name
* SUA Name List:
* - initialise Name List
* - read hostname
* - read global title
* - resolve hostname
* - perform Global Title Translation
*/
#include "sctp.h"
#include "sua_debug.h"
#include "sua_database.h"
#include "sua_asp_mgnt.h"
#include "sua_logging.h"
#include "sua_adapt.h"
#include <cstdio>
#include <iostream>
#include <cstdlib>
#include <string>
#include "unistd.h"
using namespace std;
/***********************************************************************/
/* functions of the object class SUA name Object */
/***********************************************************************/
/***********************************************************************/
/* Sua_NameObject::initalize */
/***********************************************************************/
void db_Sua_NameObject::initialize(){
// initialise to point to a invalid SUA association
SUA_assoc_id = 0;
GT.Translation_Type = 0;
GT.Numbering_Plan = 0;
GT.Nature_of_Address = 0;
/* initialise to empty string */
GT.digits="";
hostname = "";
}
/***********************************************************************/
/* functions of the object class SUA NameList */
/***********************************************************************/
/***********************************************************************/
/* Sua_NameList::initalize */
/***********************************************************************/
void db_Sua_NameList::initialize(){
short i;
num_of_instance = 0;
for (i=0; i < db_MAX_REMOTE_SUA; i++) {
instance[i].initialize();
}
}
/***********************************************************************/
/* Sua_NameList::read_host_name */
/***********************************************************************/
void db_Sua_NameList::read_host_name( unsigned int gtname_id,
string name
){
char *hostname;
const char *ip_addr_ptr;
struct hostent *hptr;
char str[INET6_ADDRSTRLEN];
char **pptr;
string addr_str;
hostname = new char[name.length()+1];
name.copy(hostname,name.length());
// we are dealing with char arrays, so....
hostname[name.length()] = '\0';
if ((hptr = gethostbyname(hostname)) == NULL){
cout << "Determination of hostname failed\n";
}
else
{
#ifdef DEBUG
cout << "Hostname " << hptr->h_name << " has the following IP address(es)\n";
#endif
pptr = hptr->h_addr_list;
for ( ; *pptr != NULL;pptr++)
{
ip_addr_ptr = inet_ntop(hptr->h_addrtype, *pptr, str,sizeof(str));
addr_str = addr_str + ip_addr_ptr;
if ((*(pptr+1)) != NULL)
/* another ip address is comming after the present one */
addr_str = addr_str + ",";
/*else this is the last ip address */
#ifdef DEBUG
cout << ip_addr_ptr << "\n";
#endif
}
#ifdef DEBUG
cout << "output IP list = " << addr_str << "\n";
#endif
}
/* initialise */
instance[gtname_id].SUA_assoc_id = 0;
/* no GT present -> hostname present */
instance[gtname_id].GT_present = false;
instance[gtname_id].hostname = name;
return;
}
/***********************************************************************/
/* Sua_NameList::read_Global_Title */
/***********************************************************************/
void db_Sua_NameList::read_Global_Title( unsigned int gtname_id,
unsigned int tt,
unsigned int na,
unsigned int np,
string digits
)
{
/*unsigned short i;*/
instance[gtname_id].SUA_assoc_id = 0;
/* GT present */
instance[gtname_id].GT_present = true;
instance[gtname_id].GT.Translation_Type = tt;
instance[gtname_id].GT.Numbering_Plan = np;
instance[gtname_id].GT.Nature_of_Address = na;
instance[gtname_id].GT.digits.resize( digits.length());
instance[gtname_id].GT.digits= "";
instance[gtname_id].GT.digits = digits;
}
/***********************************************************************/
/* db_Sua_NameList::resolve_host_name */
/***********************************************************************/
signed int db_Sua_NameList::resolve_host_name ( hostname_str& dest_name,
pointcode_str& dest_pc
)
{
struct hostent *hptr;
char **pptr;
char str[INET6_ADDRSTRLEN];
char *dest_carr;
/* resolving can be done via: */
/* - local global Titel database */
/* - resolve hostname via DNS(simplest for single hop translations) */
dest_carr = dest_name;
if ((hptr = gethostbyname( dest_carr )) == NULL)
{
cout << "Hostname " << dest_name << " not known in DNS.\n";
return(-1);
}
#ifdef DEBUG
cout << "Hostname " << dest_name << " resolved to dest IP address(es)\n";
cout << "IP address length = "<< hptr->h_length << "\n";
#endif
/* initialise the length field of the structure: */
/* length field is NOT always present in every Unix like operating system */
dest_pc.ipvx.ch[0] = 0;
pptr = hptr->h_addr_list;
for ( ; (*pptr != NULL) ;pptr++)
{
inet_ntop(hptr->h_addrtype, *pptr, str,sizeof(str));
#ifdef DEBUG
cout << str << "\n";
#endif
/* got a IP address */
dest_pc.ipvx.sa.sa_family = hptr->h_addrtype;
if (dest_pc.ipvx.sa.sa_family == AF_INET)
inet_pton( AF_INET,
str,
&dest_pc.ipvx.sin.sin_addr
);
else if (dest_pc.ipvx.sa.sa_family == AF_INET6)
inet_pton( AF_INET6,
str,
&dest_pc.ipvx.sin6.sin6_addr
);
else
{
cout << "ERROR resolve_host_name: Unknown IP addresstype\n";
return(-2);
}
}
return(0);
};
/***********************************************************************/
/* db_Sua_NameList::resolve_GT */
/***********************************************************************/
signed int db_Sua_NameList::perform_GTT ( global_title_str& cld_in,
global_title_str& clg_in,
global_title_str& cld_out,
global_title_str& clg_out,
pointcode_str& dest_pc
)
{
boolean search_gt = true, gt_entry_found = false;
int i, found_gt_entry,res;
unsigned int sua_assoc_id, status;
/* resolving can be done via: */
/* - local global Titel database */
i= 1;
while (search_gt){
gt_entry_found = ((instance[i].GT.Translation_Type == cld_in.Translation_Type) &&
(instance[i].GT.Numbering_Plan == cld_in.Numbering_Plan) &&
(instance[i].GT.Nature_of_Address == cld_in.Nature_of_Address) &&
(instance[i].GT.digits == cld_in.digits));
found_gt_entry = i;
search_gt = ((!gt_entry_found) && ( i < num_of_instance));
/* next entry of name table */
i++;
}
cout << "found_gt_entry = " << found_gt_entry << "\n";
cout << "tt = " << cld_in.Translation_Type << "\n";
cout << "NP = " << cld_in.Numbering_Plan << "\n";
cout << "NA = " << cld_in.Nature_of_Address << "\n";
cout << "CLD number of digits = " << cld_in.nr_of_digits << "\n";
cout << "CLD digits = " << cld_in.digits[0];
cout << cld_in.digits[1];
cout << cld_in.digits[2];
cout << cld_in.digits[3];
cout << cld_in.digits[4];
cout << cld_in.digits[5];
cout << cld_in.digits[6];
cout << cld_in.digits[7];
cout << cld_in.digits[8];
cout << cld_in.digits[9];
cout << cld_in.digits[10];
cout << cld_in.digits[11];
cout << "\n";
cout << "CLG number of digits = " << clg_in.nr_of_digits << "\n";
cout << "CLG digits = " << clg_in.digits << "\n";
if (gt_entry_found) {
/* get the association number from gt database */
res = sua_get_destpc_addr(instance[found_gt_entry].SUA_assoc_id,
dest_pc,
sua_assoc_id,
status
);
return(0);
}
else
return(-1);
};
/***********************************************************************/
/* db_Sua_NameList::increase_instance */
/***********************************************************************/
void db_Sua_NameList:: increase_instance(){
num_of_instance++;
}
// end of module sua_dataname.c
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