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 #ifdef HAVE_SYS_SOCKET_H
  32 #include <sys/socket.h>
  33 #endif
  34
  35 #include "winsock.h"
  36
  37 #include "inet_ntop.h"
  38
  39 const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt) {
  40     struct in_addr *in = (struct in_addr*)src;
  41 #ifdef HAVE_IPV6
  42     struct in6_addr *in6 = (struct in6_addr*)src;
  43 #endif
  44
  45     assert(src && dst);
  46
  47     switch (af) {
  48     case AF_INET:
  49         pa_snprintf(dst, cnt, "%d.%d.%d.%d",
  50 #ifdef WORDS_BIGENDIAN
  51             (int)(in->s_addr >> 24) & 0xff,
  52             (int)(in->s_addr >> 16) & 0xff,
  53             (int)(in->s_addr >>  8) & 0xff,
  54             (int)(in->s_addr >>  0) & 0xff);
  55 #else
  56             (int)(in->s_addr >>  0) & 0xff,
  57             (int)(in->s_addr >>  8) & 0xff,
  58             (int)(in->s_addr >> 16) & 0xff,
  59             (int)(in->s_addr >> 24) & 0xff);
  60 #endif
  61         break;
  62 #ifdef HAVE_IPV6
  63     case AF_INET6:
  64         pa_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 #endif
  75     default:
  76         errno = EAFNOSUPPORT;
  77         return NULL;
  78     }
  79
  80     return dst;
  81 }
  82
  83 #endif /* INET_NTOP */