src/pulsecore/inet_ntop.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28
  29 #ifndef HAVE_INET_NTOP
  30
  31 #include <pulsecore/core-util.h>
  32 #include <pulsecore/macro.h>
  33 #include <pulsecore/socket.h>
  34
  35 #include "inet_ntop.h"
  36
  37 const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt) {
  38     struct in_addr *in = (struct in_addr*)src;
  39 #ifdef HAVE_IPV6
  40     struct in6_addr *in6 = (struct in6_addr*)src;
  41 #endif
  42
  43     pa_assert(src);
  44     pa_assert(dst);
  45
  46     switch (af) {
  47     case AF_INET:
  48         pa_snprintf(dst, cnt, "%d.%d.%d.%d",
  49 #ifdef WORDS_BIGENDIAN
  50             (int)(in->s_addr >> 24) & 0xff,
  51             (int)(in->s_addr >> 16) & 0xff,
  52             (int)(in->s_addr >>  8) & 0xff,
  53             (int)(in->s_addr >>  0) & 0xff);
  54 #else
  55             (int)(in->s_addr >>  0) & 0xff,
  56             (int)(in->s_addr >>  8) & 0xff,
  57             (int)(in->s_addr >> 16) & 0xff,
  58             (int)(in->s_addr >> 24) & 0xff);
  59 #endif
  60         break;
  61 #ifdef HAVE_IPV6
  62     case AF_INET6:
  63         pa_snprintf(dst, cnt, "%x:%x:%x:%x:%x:%x:%x:%x",
  64             in6->s6_addr[ 0] << 8 | in6->s6_addr[ 1],
  65             in6->s6_addr[ 2] << 8 | in6->s6_addr[ 3],
  66             in6->s6_addr[ 4] << 8 | in6->s6_addr[ 5],
  67             in6->s6_addr[ 6] << 8 | in6->s6_addr[ 7],
  68             in6->s6_addr[ 8] << 8 | in6->s6_addr[ 9],
  69             in6->s6_addr[10] << 8 | in6->s6_addr[11],
  70             in6->s6_addr[12] << 8 | in6->s6_addr[13],
  71             in6->s6_addr[14] << 8 | in6->s6_addr[15]);
  72         break;
  73 #endif
  74     default:
  75         errno = EAFNOSUPPORT;
  76         return NULL;
  77     }
  78
  79     return dst;
  80 }
  81
  82 #endif /* INET_NTOP */