dlls/dnsapi/name.c

   1 /*
   2  * DNS support
   3  *
   4  * Copyright (C) 2006 Matthew Kehrer
   5  * Copyright (C) 2006 Hans Leidekker
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "wine/debug.h"
  23 #include "wine/unicode.h"
  24
  25 #include <stdarg.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winerror.h"
  30 #include "winnls.h"
  31 #include "windns.h"
  32
  33 #include "dnsapi.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(dnsapi);
  36
  37 /******************************************************************************
  38  * DnsNameCompare_A               [DNSAPI.@]
  39  *
  40  */
  41 BOOL WINAPI DnsNameCompare_A( LPSTR name1, LPSTR name2 )
  42 {
  43     BOOL ret;
  44     LPWSTR name1W, name2W;
  45
  46     TRACE( "(%s,%s)\n", debugstr_a(name1), debugstr_a(name2) );
  47
  48     name1W = dns_strdup_aw( name1 );
  49     name2W = dns_strdup_aw( name2 );
  50
  51     ret = DnsNameCompare_W( name1W, name2W );
  52
  53     dns_free( name1W );
  54     dns_free( name2W );
  55
  56     return ret;
  57 }
  58
  59 /******************************************************************************
  60  * DnsNameCompare_W               [DNSAPI.@]
  61  *
  62  */
  63 BOOL WINAPI DnsNameCompare_W( LPWSTR name1, LPWSTR name2 )
  64 {
  65     WCHAR *p, *q;
  66
  67     TRACE( "(%s,%s)\n", debugstr_w(name1), debugstr_w(name2) );
  68
  69     if (!name1 && !name2) return TRUE;
  70     if (!name1 || !name2) return FALSE;
  71
  72     p = name1 + lstrlenW( name1 ) - 1;
  73     q = name2 + lstrlenW( name2 ) - 1;
  74
  75     while (*p == '.' && p >= name1) p--;
  76     while (*q == '.' && q >= name2) q--;
  77
  78     if (p - name1 != q - name2) return FALSE;
  79
  80     while (name1 <= p)
  81     {
  82         if (toupperW( *name1 ) != toupperW( *name2 ))
  83             return FALSE;
  84
  85         name1++;
  86         name2++;
  87     }
  88     return TRUE;
  89 }