filter/f-util.c

   1 /*
   2  *      Filters: utility functions
   3  *
   4  *      Copyright 1998 Pavel Machek <pavel@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 #include <stdio.h>
  10 #include <fcntl.h>
  11 #include <unistd.h>
  12 #include <sys/signal.h>
  13 #include <setjmp.h>
  14
  15 #include "nest/bird.h"
  16 #include "lib/lists.h"
  17 #include "lib/resource.h"
  18 #include "lib/socket.h"
  19 #include "nest/route.h"
  20 #include "nest/protocol.h"
  21 #include "nest/iface.h"
  22 #include "conf/conf.h"
  23 #include "filter/filter.h"
  24
  25 struct f_inst *
  26 f_new_inst(void)
  27 {
  28   struct f_inst * ret;
  29   ret = cfg_alloc(sizeof(struct f_inst));
  30   ret->code = ret->aux = 0;
  31   ret->arg1 = ret->arg2 = ret->next = NULL;
  32   return ret;
  33 }
  34
  35 struct f_inst *
  36 f_new_dynamic_attr(int type, int code)
  37 {
  38   struct f_inst *f = f_new_inst();
  39   f->aux = type;
  40   f->a2.i = code;
  41   return f;
  42 }
  43
  44 char *
  45 filter_name(struct filter *filter)
  46 {
  47   if (!filter)
  48     return "ACCEPT";
  49   else if (filter == FILTER_REJECT)
  50     return "REJECT";
  51   else
  52     return filter->name;
  53 }