code.delx.au - pulseaudio/blob - polyp/inet_ntop.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio 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   polypaudio 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 polypaudio; 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 #include <assert.h>
  29
  30 #ifndef HAVE_INET_NTOP
  31
  32 #ifdef HAVE_SYS_SOCKET_H
  33 #include <sys/socket.h>
  34 #endif
  35
  36 #include "winsock.h"
  37
  38 #include "inet_ntop.h"
  39
  40 const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt) {
  41     struct in_addr *in = (struct in_addr*)src;
  42     struct in6_addr *in6 = (struct in6_addr*)src;
  43
  44     assert(src && dst);
  45
  46     switch (af) {
  47     case AF_INET:
  48         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     case AF_INET6:
  62         snprintf(dst, cnt, "%x:%x:%x:%x:%x:%x:%x:%x",
  63             in6->s6_addr[ 0] << 8 | in6->s6_addr[ 1],
  64             in6->s6_addr[ 2] << 8 | in6->s6_addr[ 3],
  65             in6->s6_addr[ 4] << 8 | in6->s6_addr[ 5],
  66             in6->s6_addr[ 6] << 8 | in6->s6_addr[ 7],
  67             in6->s6_addr[ 8] << 8 | in6->s6_addr[ 9],
  68             in6->s6_addr[10] << 8 | in6->s6_addr[11],
  69             in6->s6_addr[12] << 8 | in6->s6_addr[13],
  70             in6->s6_addr[14] << 8 | in6->s6_addr[15]);
  71         break;
  72     default:
  73         errno = EAFNOSUPPORT;
  74         return NULL;
  75     }
  76
  77     return dst;
  78 }
  79
  80 #endif /* INET_NTOP */