pimd/pim_str.c

   1 /*
   2   PIM for Quagga
   3   Copyright (C) 2008  Everton da Silva Marques
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9
  10   This program is distributed in the hope that it will be useful, but
  11   WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13   General Public License for more details.
  14
  15   You should have received a copy of the GNU General Public License
  16   along with this program; see the file COPYING; if not, write to the
  17   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  18   MA 02110-1301 USA
  19 */
  20
  21 #include <zebra.h>
  22
  23 #include <stdio.h>
  24 #include <errno.h>
  25 #include <string.h>
  26
  27 #include "log.h"
  28
  29 #include "pim_str.h"
  30
  31 void pim_addr_dump (const char *onfail, struct prefix *p, char *buf, int buf_size)
  32 {
  33   int save_errno = errno;
  34
  35   if (!inet_ntop(p->family, &p->u.prefix, buf, buf_size)) {
  36     zlog_warn("pim_addr_dump: inet_ntop(buf_size=%d): errno=%d: %s",
  37               buf_size, errno, safe_strerror(errno));
  38     if (onfail)
  39       snprintf(buf, buf_size, "%s", onfail);
  40   }
  41
  42   errno = save_errno;
  43 }
  44
  45 void pim_inet4_dump(const char *onfail, struct in_addr addr, char *buf, int buf_size)
  46 {
  47   int save_errno = errno;
  48
  49   if (addr.s_addr == INADDR_ANY)
  50     strcpy(buf, "*");
  51   else
  52     {
  53       if (!inet_ntop(AF_INET, &addr, buf, buf_size)) {
  54         zlog_warn("pim_inet4_dump: inet_ntop(AF_INET,buf_size=%d): errno=%d: %s",
  55                   buf_size, errno, safe_strerror(errno));
  56       if (onfail)
  57         snprintf(buf, buf_size, "%s", onfail);
  58     }
  59   }
  60
  61   errno = save_errno;
  62 }
  63
  64 char *
  65 pim_str_sg_dump (const struct prefix_sg *sg)
  66 {
  67   char src_str[INET_ADDRSTRLEN];
  68   char grp_str[INET_ADDRSTRLEN];
  69   static char sg_str[PIM_SG_LEN];
  70
  71   pim_inet4_dump ("<src?>", sg->src, src_str, sizeof(src_str));
  72   pim_inet4_dump ("<grp?>", sg->grp, grp_str, sizeof(grp_str));
  73   snprintf (sg_str, PIM_SG_LEN, "(%s,%s)", src_str, grp_str);
  74
  75   return sg_str;
  76 }
  77
  78 char *
  79 pim_str_sg_set (const struct prefix_sg *sg, char *sg_str)
  80 {
  81   char src_str[INET_ADDRSTRLEN];
  82   char grp_str[INET_ADDRSTRLEN];
  83
  84   pim_inet4_dump ("<src?>", sg->src, src_str, sizeof(src_str));
  85   pim_inet4_dump ("<grp?>", sg->grp, grp_str, sizeof(grp_str));
  86   snprintf (sg_str, PIM_SG_LEN, "(%s,%s)", src_str, grp_str);
  87
  88   return sg_str;
  89 }