code.delx.au - pulseaudio/blob - 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/socket.h>
  33
  34 #include "inet_ntop.h"
  35
  36 const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt) {
  37     struct in_addr *in = (struct in_addr*)src;
  38 #ifdef HAVE_IPV6
  39     struct in6_addr *in6 = (struct in6_addr*)src;
  40 #endif
  41
  42     assert(src && dst);
  43
  44     switch (af) {
  45     case AF_INET:
  46         pa_snprintf(dst, cnt, "%d.%d.%d.%d",
  47 #ifdef WORDS_BIGENDIAN
  48             (int)(in->s_addr >> 24) & 0xff,
  49             (int)(in->s_addr >> 16) & 0xff,
  50             (int)(in->s_addr >>  8) & 0xff,
  51             (int)(in->s_addr >>  0) & 0xff);
  52 #else
  53             (int)(in->s_addr >>  0) & 0xff,
  54             (int)(in->s_addr >>  8) & 0xff,
  55             (int)(in->s_addr >> 16) & 0xff,
  56             (int)(in->s_addr >> 24) & 0xff);
  57 #endif
  58         break;
  59 #ifdef HAVE_IPV6
  60     case AF_INET6:
  61         pa_snprintf(dst, cnt, "%x:%x:%x:%x:%x:%x:%x:%x",
  62             in6->s6_addr[ 0] << 8 | in6->s6_addr[ 1],
  63             in6->s6_addr[ 2] << 8 | in6->s6_addr[ 3],
  64             in6->s6_addr[ 4] << 8 | in6->s6_addr[ 5],
  65             in6->s6_addr[ 6] << 8 | in6->s6_addr[ 7],
  66             in6->s6_addr[ 8] << 8 | in6->s6_addr[ 9],
  67             in6->s6_addr[10] << 8 | in6->s6_addr[11],
  68             in6->s6_addr[12] << 8 | in6->s6_addr[13],
  69             in6->s6_addr[14] << 8 | in6->s6_addr[15]);
  70         break;
  71 #endif
  72     default:
  73         errno = EAFNOSUPPORT;
  74         return NULL;
  75     }
  76
  77     return dst;
  78 }
  79
  80 #endif /* INET_NTOP */