diff options
Diffstat (limited to 'sualibrary/sua/sua_dataname.cpp')
| -rw-r--r-- | sualibrary/sua/sua_dataname.cpp | 178 |
1 files changed, 157 insertions, 21 deletions
diff --git a/sualibrary/sua/sua_dataname.cpp b/sualibrary/sua/sua_dataname.cpp index f71a1ee..2b9d401 100644 --- a/sualibrary/sua/sua_dataname.cpp +++ b/sualibrary/sua/sua_dataname.cpp @@ -15,7 +15,7 @@ * * ***************************************************************************/ /* - * $Id: sua_dataname.cpp,v 1.2 2002/03/01 12:57:38 p82609 Exp $ + * $Id: sua_dataname.cpp,v 1.6 2002/11/12 11:04:12 p82609 Exp $ * * SUA implementation according to SUA draft issue 6. * @@ -53,7 +53,10 @@ * - initialise Name * SUA Name List: * - initialise Name List - * - read hostname + * - read hostname + * - read global title + * - resolve hostname + * - perform Global Title Translation */ #include "sctp.h" @@ -62,6 +65,7 @@ #include "sua_database.h" #include "sua_asp_mgnt.h" #include "sua_logging.h" +#include "sua_adapt.h" #include <cstdio> #include <iostream> @@ -84,7 +88,15 @@ using namespace std; void db_Sua_NameObject::initialize(){ // initialise to point to a invalid SUA association - SUA_assoc_id = 0; + SUA_assoc_id = 0; + sctp_assoc_id = 0; + GT.Translation_Type = 0; + GT.Numbering_Plan = 0; + GT.Nature_of_Address = 0; + /* initialise to empty string */ + GT.digits=""; + hostname = ""; + } @@ -107,7 +119,9 @@ void db_Sua_NameList::initialize(){ /***********************************************************************/ /* Sua_NameList::read_host_name */ /***********************************************************************/ -string db_Sua_NameList::read_host_name(string name){ +string db_Sua_NameList::read_host_name( unsigned int sua_assoc_id, + string name + ){ char *hostname; const char *ip_addr_ptr; @@ -129,7 +143,7 @@ string db_Sua_NameList::read_host_name(string name){ #ifdef DEBUG cout << "Hostname " << hptr->h_name << " has the following IP address(es)\n"; #endif - + pptr = hptr->h_addr_list; for ( ; *pptr != NULL;pptr++) { @@ -143,30 +157,152 @@ string db_Sua_NameList::read_host_name(string name){ cout << ip_addr_ptr << "\n"; #endif } - + #ifdef DEBUG cout << "output IP list = " << addr_str << "\n"; #endif - - string name_str; - int last= name.size(); - unsigned int current = name.rfind('.'); - while(current != string::npos){ - name_str = name_str + name.substr(current+1,(last-current)) + "."; - last= current - 1; - current = name.rfind('.', last); - } - name_str = name_str + name.substr(0,last+1); + + instance[num_of_instance].SUA_assoc_id = sua_assoc_id; + + instance[num_of_instance].hostname = name; + + return(addr_str); + +} +/***********************************************************************/ +/* Sua_NameList::read_Global_Title */ +/***********************************************************************/ +void db_Sua_NameList::read_Global_Title( unsigned int sua_assoc_id, + string gt + ) +{ + string GT_TT_str, GT_NP_str, GT_NA_str, GT_Digits_str; + unsigned int first = 0, last = 0; + unsigned int current = gt.find('-', first); + + first = 1; + last = current - 1; + GT_TT_str = gt.substr( first, last); + + first = current + 1; + current = gt.find('-', first); + last = current - 1; + GT_NP_str = gt.substr( first , last); + + first = current + 1; + current = gt.find('-', first); + last = current - 1; + GT_NA_str = gt.substr( first , last); + + first = current + 1; + last = gt.size(); + GT_Digits_str = gt.substr( first , last); + + instance[num_of_instance].SUA_assoc_id = sua_assoc_id; + + instance[num_of_instance].GT.Translation_Type = atoi(GT_TT_str.c_str()); + instance[num_of_instance].GT.Numbering_Plan = atoi(GT_NP_str.c_str()); + instance[num_of_instance].GT.Nature_of_Address = atoi(GT_NA_str.c_str()); + instance[num_of_instance].GT.digits = GT_Digits_str; + +} + +/***********************************************************************/ +/* 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 << "Ready for storing SUA dest hostname = " << name_str << " in NameDB\n"; + cout << "Hostname " << dest_name << " resolved to dest IP address(es)\n"; + cout << "IP address length = "<< hptr->h_length << "\n"; #endif - - - return(addr_str); + + /* 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; + + /* resolving can be done via: */ + /* - local global Titel database */ + i= 0; + 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; + /* next entry of name table */ + i++; + } + if (gt_entry_found) { + /* get the association number from gt database */ + dest_pc = get_destpc_addr(instance[found_gt_entry].SUA_assoc_id); + return(0); + } + else + return(-1); +}; // end of module sua_dataname.c |