crypto/external/bsd/heimdal/dist/lib/roken/inet_pton.c

   1 /*      $NetBSD: inet_pton.c,v 1.1.1.1 2011/04/13 18:15:41 elric Exp $  */
   2
   3 /*
   4  * Copyright (c) 1999 - 2000 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <config.h>
  37
  38 #include <krb5/roken.h>
  39
  40 #ifdef HAVE_WINSOCK
  41
  42 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
  43 inet_pton(int af, const char *csrc, void *dst)
  44 {
  45     char * src;
  46
  47     if (csrc == NULL || (src = strdup(csrc)) == NULL) {
  48         _set_errno( ENOMEM );
  49         return 0;
  50     }
  51
  52     switch (af) {
  53     case AF_INET:
  54         {
  55             struct sockaddr_in  si4;
  56             INT r;
  57             INT s = sizeof(si4);
  58
  59             si4.sin_family = AF_INET;
  60             r = WSAStringToAddress(src, AF_INET, NULL, (LPSOCKADDR) &si4, &s);
  61             free(src);
  62             src = NULL;
  63
  64             if (r == 0) {
  65                 memcpy(dst, &si4.sin_addr, sizeof(si4.sin_addr));
  66                 return 1;
  67             }
  68         }
  69         break;
  70
  71     case AF_INET6:
  72         {
  73             struct sockaddr_in6 si6;
  74             INT r;
  75             INT s = sizeof(si6);
  76
  77             si6.sin6_family = AF_INET6;
  78             r = WSAStringToAddress(src, AF_INET6, NULL, (LPSOCKADDR) &si6, &s);
  79             free(src);
  80             src = NULL;
  81
  82             if (r == 0) {
  83                 memcpy(dst, &si6.sin6_addr, sizeof(si6.sin6_addr));
  84                 return 1;
  85             }
  86         }
  87         break;
  88
  89     default:
  90         _set_errno( EAFNOSUPPORT );
  91         return -1;
  92     }
  93
  94     /* the call failed */
  95     {
  96         int le = WSAGetLastError();
  97
  98         if (le == WSAEINVAL)
  99             return 0;
 100
 101         _set_errno(le);
 102         return -1;
 103     }
 104 }
 105
 106 #else  /* !HAVE_WINSOCK */
 107
 108 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
 109 inet_pton(int af, const char *src, void *dst)
 110 {
 111     if (af != AF_INET) {
 112         errno = EAFNOSUPPORT;
 113         return -1;
 114     }
 115     return inet_aton (src, dst);
 116 }
 117
 118 #endif