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,
  32                    int buf_size)
  33 {
  34         int save_errno = errno;
  35
  36         if (!inet_ntop(p->family, &p->u.prefix, buf, buf_size)) {
  37                 zlog_warn("pim_addr_dump: inet_ntop(buf_size=%d): errno=%d: %s",
  38                           buf_size, errno, safe_strerror(errno));
  39                 if (onfail)
  40                         snprintf(buf, buf_size, "%s", onfail);
  41         }
  42
  43         errno = save_errno;
  44 }
  45
  46 void pim_inet4_dump(const char *onfail, struct in_addr addr, char *buf,
  47                     int buf_size)
  48 {
  49         int save_errno = errno;
  50
  51         if (addr.s_addr == INADDR_ANY)
  52                 strcpy(buf, "*");
  53         else {
  54                 if (!inet_ntop(AF_INET, &addr, buf, buf_size)) {
  55                         zlog_warn(
  56                                 "pim_inet4_dump: inet_ntop(AF_INET,buf_size=%d): errno=%d: %s",
  57                                 buf_size, errno, safe_strerror(errno));
  58                         if (onfail)
  59                                 snprintf(buf, buf_size, "%s", onfail);
  60                 }
  61         }
  62
  63         errno = save_errno;
  64 }
  65
  66 char *pim_str_sg_dump(const struct prefix_sg *sg)
  67 {
  68         char src_str[INET_ADDRSTRLEN];
  69         char grp_str[INET_ADDRSTRLEN];
  70         static char sg_str[PIM_SG_LEN];
  71
  72         pim_inet4_dump("<src?>", sg->src, src_str, sizeof(src_str));
  73         pim_inet4_dump("<grp?>", sg->grp, grp_str, sizeof(grp_str));
  74         snprintf(sg_str, PIM_SG_LEN, "(%s,%s)", src_str, grp_str);
  75
  76         return sg_str;
  77 }
  78
  79 char *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 }