code.delx.au - pulseaudio/blob - src/pulsecore/inet_ntop.c

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