コード例 #1
0
ファイル: connection.c プロジェクト: Veilen/xinetd
void conn_dump( const connection_s *cp, int fd )
{
   const char *name = conn_addrstr( cp );

   tabprint( fd, 1, "service = %s\n", SVC_ID( cp->co_sp ) ) ;
   tabprint( fd, 1, "descriptor = %d\n", cp->co_descriptor ) ;
#if defined(__GNUC__) && !defined(__arch64__) && !defined(__alpha__)
   tabprint( fd, 1, "flags = %#llx\n", cp->co_flags ) ;
#else
   tabprint( fd, 1, "flags = %#lx\n", cp->co_flags ) ;
#endif
   tabprint( fd, 1, "remote_address = %s,%d\n", name,
                              ntohs( cp->co_remote_address.sa_in.sin_port ) ) ;
}
コード例 #2
0
ファイル: child.c プロジェクト: aosm/xinetd
/*
 * This function is invoked in a forked process to run a server. 
 * If the service is internal the appropriate function is invoked
 * otherwise the server program is exec'ed.
 * This function also logs the remote user id if appropriate
 */
void child_process( struct server *serp )
{
   struct service          *sp  = SERVER_SERVICE( serp ) ;
   connection_s            *cp  = SERVER_CONNECTION( serp ) ;
   struct service_config   *scp = SVC_CONF( sp ) ;
   const char              *func = "child_process" ;

   signal_default_state();

   if ((signals_pending[0] >= 0 && Sclose(signals_pending[0])) ||
       (signals_pending[1] >= 0 && Sclose(signals_pending[1])))
   {
      msg(LOG_ERR, func, "Failed to close the signal pipe: %m");
      _exit(1);
   }
   signals_pending[0] = -1;
   signals_pending[1] = -1;

   Sclose(0);
   Sclose(1);
   Sclose(2);


#ifdef DEBUG_SERVER
   if ( debug.on )
   {
      msg( LOG_DEBUG, func, "Process %d is sleeping", getpid() ) ;
      sleep( 10 ) ;
   }
#endif

   if ( ! SC_IS_INTERCEPTED( scp ) )
   {
      set_credentials( scp ) ;
      if ( SC_SPECIFIED( scp, A_NICE ) )
         (void) nice( SC_NICE( scp ) ) ;
   }

   if ( svc_child_access_control(sp, cp) != OK )
      exit(0);

   if ( SERVER_LOGUSER( serp ) )
   {
      unsigned   timeout ;
      idresult_e result ;
      
      /*
       * We use LOGUSER_SUCCESS_TIMEOUT unless the service requires
       * identification, in which case we use an infinite timeout
       */
      timeout = SC_MUST_IDENTIFY( scp ) ? 0 : LOGUSER_SUCCESS_TIMEOUT ;
      result = log_remote_user( serp, timeout ) ;

      if ( result != IDR_OK && SC_MUST_IDENTIFY( scp ) )
      {
         svc_logprint( sp, NOID_ENTRY, "%s %s",
                  conn_addrstr( SERVER_CONNECTION( serp ) ),
                     idresult_explain( result ) ) ;
         _exit( 0 ) ;
      }
   }

#ifdef HAVE_SESSIONCREATE
   if ( scp->sc_sessioncreate == YES ) 
   {
      if ( SessionCreate(0, sessionHasTTY|sessionIsRemote) != noErr )
         svc_logprint( sp, "SessionCreate", "SessionCreate() failed!" );
   }
#endif

   /* this is where the server gets executed  -bbraun */
   if ( ! SC_IS_INTERNAL( scp ) )
   {
      if( scp->sc_redir_addr != NULL )
      {
         redir_handler( serp );
      }
      else
      {
#if defined(HAVE_SETENV)
         char buff[1024];

         strx_sprint(buff, sizeof(buff)-1, "REMOTE_HOST=%s", conn_addrstr(cp));
         if( env_addstr(SC_ENV(scp)->env_handle, buff) != ENV_OK ) {
            msg( LOG_ERR, func, "Error adding REMOTE_HOST variable for %s: %m", SC_NAME(scp) );
            _exit( 1 ) ;
         }
#endif
         exec_server( serp ) ;
      }
   }
   else
   {
      char name[ 180 ] ;
      /*
       * We don't bother to disassociate from the controlling terminal
       *   (we have a controlling terminal only if debug.on is TRUE)
       *
       * Also, for interceptor processes, we give them the name:
       *            <program_name> <service-id> interceptor
       */
      if ( SC_IS_INTERCEPTED( scp ) )
         strx_print( INT_NULL, name, sizeof( name ) - 1,
                           "%s %s interceptor", program_name, SC_ID( scp ) ) ;
      else
      {
         int namelen = sizeof( name ) - 1 ;      /* leave space for the NUL */
         char host[NI_MAXHOST];
         size_t hostlen = NI_MAXHOST;
         socklen_t addrlen = 0;
         union xsockaddr *sinp = CONN_XADDRESS(SERVER_CONNECTION(serp));
         int len;

         if( sinp == NULL )
            exit(0);

         if( SC_IPV6(scp) ) addrlen = sizeof(struct sockaddr_in6);
         else if( SC_IPV4(scp) ) addrlen = sizeof(struct sockaddr_in);

         len = strx_nprint(name, namelen, "(%s service) %s", program_name,
            SC_ID( scp ) ) ;

         if( getnameinfo( SA(sinp), addrlen, host, hostlen, NULL, 0, 0) != 0 )
               strcpy(host, "unknown");

         if ( SC_IPV6(scp) && SC_ACCEPTS_CONNECTIONS( scp ) && 
               !IN6_IS_ADDR_UNSPECIFIED(&sinp->sa_in6.sin6_addr) )
            strx_print( INT_NULL, &name[ len ], namelen - len, " %s" , host ) ;
         if ( SC_IPV4(scp) && SC_ACCEPTS_CONNECTIONS( scp ) )
            strx_print( INT_NULL, &name[ len ], namelen - len, " %s", host ) ;
      }
      rename_process( name ) ;
      SVC_INTERNAL( sp, serp ) ;
   }
   _exit( 0 ) ;
   /* NOTREACHED */
}