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 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 <stdio.h>
  23 #include <errno.h>
  24 #include <string.h>
  25
  26 #include "log.h"
  27
  28 #include "pim_str.h"
  29
  30 void pim_addr_dump(const char *onfail, struct prefix *p, char *buf,
  31                    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,
  46                     int buf_size)
  47 {
  48         int save_errno = errno;
  49
  50         if (addr.s_addr == INADDR_ANY)
  51                 strcpy(buf, "*");
  52         else {
  53                 if (!inet_ntop(AF_INET, &addr, buf, buf_size)) {
  54                         zlog_warn(
  55                                 "pim_inet4_dump: inet_ntop(AF_INET,buf_size=%d): errno=%d: %s",
  56                                 buf_size, errno, safe_strerror(errno));
  57                         if (onfail)
  58                                 snprintf(buf, buf_size, "%s", onfail);
  59                 }
  60         }
  61
  62         errno = save_errno;
  63 }
  64
  65 char *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 *pim_str_sg_set(const struct prefix_sg *sg, char *sg_str)
  79 {
  80         char src_str[INET_ADDRSTRLEN];
  81         char grp_str[INET_ADDRSTRLEN];
  82
  83         pim_inet4_dump("<src?>", sg->src, src_str, sizeof(src_str));
  84         pim_inet4_dump("<grp?>", sg->grp, grp_str, sizeof(grp_str));
  85         snprintf(sg_str, PIM_SG_LEN, "(%s,%s)", src_str, grp_str);
  86
  87         return sg_str;
  88 }