4 * Copyright (C) 2006 Matthew Kehrer
5 * Copyright (C) 2006 Hans Leidekker
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.
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.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "wine/debug.h"
24 #include "wine/unicode.h"
27 #include <sys/types.h>
29 #ifdef HAVE_NETINET_IN_H
30 # include <netinet/in.h>
32 #ifdef HAVE_ARPA_NAMESER_H
33 # include <arpa/nameser.h>
47 WINE_DEFAULT_DEBUG_CHANNEL(dnsapi);
49 /******************************************************************************
50 * DnsNameCompare_A [DNSAPI.@]
53 BOOL WINAPI DnsNameCompare_A( LPSTR name1, LPSTR name2 )
56 LPWSTR name1W, name2W;
58 TRACE( "(%s,%s)\n", debugstr_a(name1), debugstr_a(name2) );
60 name1W = dns_strdup_aw( name1 );
61 name2W = dns_strdup_aw( name2 );
63 ret = DnsNameCompare_W( name1W, name2W );
71 /******************************************************************************
72 * DnsNameCompare_W [DNSAPI.@]
75 BOOL WINAPI DnsNameCompare_W( LPWSTR name1, LPWSTR name2 )
79 TRACE( "(%s,%s)\n", debugstr_w(name1), debugstr_w(name2) );
81 if (!name1 && !name2) return TRUE;
82 if (!name1 || !name2) return FALSE;
84 p = name1 + lstrlenW( name1 ) - 1;
85 q = name2 + lstrlenW( name2 ) - 1;
87 while (*p == '.' && p >= name1) p--;
88 while (*q == '.' && q >= name2) q--;
90 if (p - name1 != q - name2) return FALSE;
94 if (toupperW( *name1 ) != toupperW( *name2 ))
103 /******************************************************************************
104 * DnsValidateName_A [DNSAPI.@]
107 DNS_STATUS WINAPI DnsValidateName_A( LPCSTR name, DNS_NAME_FORMAT format )
112 TRACE( "(%s, %d)\n", debugstr_a(name), format );
114 nameW = dns_strdup_aw( name );
115 ret = DnsValidateName_W( nameW, format );
121 /******************************************************************************
122 * DnsValidateName_UTF8 [DNSAPI.@]
125 DNS_STATUS WINAPI DnsValidateName_UTF8( LPCSTR name, DNS_NAME_FORMAT format )
130 TRACE( "(%s, %d)\n", debugstr_a(name), format );
132 nameW = dns_strdup_uw( name );
133 ret = DnsValidateName_W( nameW, format );
139 #define HAS_EXTENDED 0x0001
140 #define HAS_NUMERIC 0x0002
141 #define HAS_NON_NUMERIC 0x0004
142 #define HAS_DOT 0x0008
143 #define HAS_DOT_DOT 0x0010
144 #define HAS_SPACE 0x0020
145 #define HAS_INVALID 0x0040
146 #define HAS_ASTERISK 0x0080
147 #define HAS_UNDERSCORE 0x0100
148 #define HAS_LONG_LABEL 0x0200
150 /******************************************************************************
151 * DnsValidateName_W [DNSAPI.@]
154 DNS_STATUS WINAPI DnsValidateName_W( LPCWSTR name, DNS_NAME_FORMAT format )
157 unsigned int i, j, state = 0;
158 static const WCHAR invalid[] = {
159 '{','|','}','~','[','\\',']','^','\'',':',';','<','=','>',
160 '?','@','!','\"','#','$','%','^','`','(',')','+','/',',',0 };
162 TRACE( "(%s, %d)\n", debugstr_w(name), format );
164 if (!name) return ERROR_INVALID_NAME;
166 for (p = name, i = 0, j = 0; *p; p++, i++, j++)
172 if (p[1] == '.') state |= HAS_DOT_DOT;
174 else if (*p < '0' || *p > '9') state |= HAS_NON_NUMERIC;
175 else state |= HAS_NUMERIC;
177 if (j > 62) state |= HAS_LONG_LABEL;
179 if (strchrW( invalid, *p )) state |= HAS_INVALID;
180 else if ((unsigned)*p > 127) state |= HAS_EXTENDED;
181 else if (*p == ' ') state |= HAS_SPACE;
182 else if (*p == '_') state |= HAS_UNDERSCORE;
183 else if (*p == '*') state |= HAS_ASTERISK;
186 if (i == 0 || i > 255 ||
187 (state & HAS_LONG_LABEL) ||
188 (state & HAS_DOT_DOT) ||
189 (name[0] == '.' && name[1])) return ERROR_INVALID_NAME;
195 if (!(state & HAS_NON_NUMERIC) && (state & HAS_NUMERIC))
196 return DNS_ERROR_NUMERIC_NAME;
197 if ((state & HAS_EXTENDED) || (state & HAS_UNDERSCORE))
198 return DNS_ERROR_NON_RFC_NAME;
199 if ((state & HAS_SPACE) ||
200 (state & HAS_INVALID) ||
201 (state & HAS_ASTERISK)) return DNS_ERROR_INVALID_NAME_CHAR;
204 case DnsNameDomainLabel:
206 if (state & HAS_DOT) return ERROR_INVALID_NAME;
207 if ((state & HAS_EXTENDED) || (state & HAS_UNDERSCORE))
208 return DNS_ERROR_NON_RFC_NAME;
209 if ((state & HAS_SPACE) ||
210 (state & HAS_INVALID) ||
211 (state & HAS_ASTERISK)) return DNS_ERROR_INVALID_NAME_CHAR;
214 case DnsNameHostnameFull:
216 if (!(state & HAS_NON_NUMERIC) && (state & HAS_NUMERIC))
217 return DNS_ERROR_NUMERIC_NAME;
218 if ((state & HAS_EXTENDED) || (state & HAS_UNDERSCORE))
219 return DNS_ERROR_NON_RFC_NAME;
220 if ((state & HAS_SPACE) ||
221 (state & HAS_INVALID) ||
222 (state & HAS_ASTERISK)) return DNS_ERROR_INVALID_NAME_CHAR;
225 case DnsNameHostnameLabel:
227 if (state & HAS_DOT) return ERROR_INVALID_NAME;
228 if (!(state & HAS_NON_NUMERIC) && (state & HAS_NUMERIC))
229 return DNS_ERROR_NUMERIC_NAME;
230 if ((state & HAS_EXTENDED) || (state & HAS_UNDERSCORE))
231 return DNS_ERROR_NON_RFC_NAME;
232 if ((state & HAS_SPACE) ||
233 (state & HAS_INVALID) ||
234 (state & HAS_ASTERISK)) return DNS_ERROR_INVALID_NAME_CHAR;
237 case DnsNameWildcard:
239 if (!(state & HAS_NON_NUMERIC) && (state & HAS_NUMERIC))
240 return ERROR_INVALID_NAME;
241 if (name[0] != '*') return ERROR_INVALID_NAME;
242 if (name[1] && name[1] != '.')
243 return DNS_ERROR_INVALID_NAME_CHAR;
244 if ((state & HAS_EXTENDED) ||
245 (state & HAS_SPACE) ||
246 (state & HAS_INVALID)) return ERROR_INVALID_NAME;
249 case DnsNameSrvRecord:
251 if (!(state & HAS_NON_NUMERIC) && (state & HAS_NUMERIC))
252 return ERROR_INVALID_NAME;
253 if (name[0] != '_') return ERROR_INVALID_NAME;
254 if ((state & HAS_UNDERSCORE) && !name[1])
255 return DNS_ERROR_NON_RFC_NAME;
256 if ((state & HAS_EXTENDED) ||
257 (state & HAS_SPACE) ||
258 (state & HAS_INVALID)) return ERROR_INVALID_NAME;
262 WARN( "unknown format: %d\n", format );
265 return ERROR_SUCCESS;