pimd/pim_addr.c

   1 /*
   2  * PIM address generalizations
   3  * Copyright (C) 2022  David Lamparter for NetDEF, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the Free
   7  * Software Foundation; either version 2 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; see the file COPYING; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  18  */
  19
  20 #include <zebra.h>
  21
  22 #include "pim_addr.h"
  23 #include "printfrr.h"
  24 #include "prefix.h"
  25
  26
  27 printfrr_ext_autoreg_p("PA", printfrr_pimaddr)
  28 static ssize_t printfrr_pimaddr(struct fbuf *buf, struct printfrr_eargs *ea,
  29                                 const void *vptr)
  30 {
  31         const pim_addr *addr = vptr;
  32         bool use_star = false;
  33
  34         if (ea->fmt[0] == 's') {
  35                 use_star = true;
  36                 ea->fmt++;
  37         }
  38
  39         if (!addr)
  40                 return bputs(buf, "(null)");
  41
  42         if (use_star) {
  43                 pim_addr zero = {};
  44
  45                 if (memcmp(addr, &zero, sizeof(zero)) == 0)
  46                         return bputch(buf, '*');
  47         }
  48
  49 #if PIM_IPV == 4
  50         return bprintfrr(buf, "%pI4", addr);
  51 #else
  52         return bprintfrr(buf, "%pI6", addr);
  53 #endif
  54 }
  55
  56 printfrr_ext_autoreg_p("SG", printfrr_sgaddr)
  57 static ssize_t printfrr_sgaddr(struct fbuf *buf, struct printfrr_eargs *ea,
  58                                const void *vptr)
  59 {
  60         const pim_sgaddr *sga = vptr;
  61
  62         if (!sga)
  63                 return bputs(buf, "(null)");
  64
  65         return bprintfrr(buf, "(%pPAs,%pPAs)", &sga->src, &sga->grp);
  66 }