| /* |
| * DNS support |
| * |
| * Copyright (C) 2006 Hans Leidekker |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| #include "wine/debug.h" |
| |
| #include <stdarg.h> |
| #include <string.h> |
| #include <sys/types.h> |
| |
| #ifdef HAVE_NETINET_IN_H |
| # include <netinet/in.h> |
| #endif |
| #ifdef HAVE_ARPA_NAMESER_H |
| # include <arpa/nameser.h> |
| #endif |
| #ifdef HAVE_RESOLV_H |
| # include <resolv.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| # include <netdb.h> |
| #endif |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winerror.h" |
| #include "winnls.h" |
| #include "windns.h" |
| |
| #include "dnsapi.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(dnsapi); |
| |
| #ifdef HAVE_RESOLV |
| |
| static CRITICAL_SECTION resolver_cs; |
| static CRITICAL_SECTION_DEBUG resolver_cs_debug = |
| { |
| 0, 0, &resolver_cs, |
| { &resolver_cs_debug.ProcessLocksList, |
| &resolver_cs_debug.ProcessLocksList }, |
| 0, 0, { (DWORD_PTR)(__FILE__ ": resolver_cs") } |
| }; |
| static CRITICAL_SECTION resolver_cs = { &resolver_cs_debug, -1, 0, 0, 0, 0 }; |
| |
| #define LOCK_RESOLVER() do { EnterCriticalSection( &resolver_cs ); } while (0) |
| #define UNLOCK_RESOLVER() do { LeaveCriticalSection( &resolver_cs ); } while (0) |
| |
| |
| /* the resolver lock must be held and res_init() must have been |
| * called before calling this function. |
| */ |
| static DNS_STATUS dns_get_serverlist( PIP4_ARRAY addrs, PDWORD len ) |
| { |
| unsigned int i, size; |
| |
| size = sizeof(IP4_ARRAY) + sizeof(IP4_ADDRESS) * (_res.nscount - 1); |
| if (!addrs || *len < size) |
| { |
| *len = size; |
| return ERROR_INSUFFICIENT_BUFFER; |
| } |
| |
| addrs->AddrCount = _res.nscount; |
| |
| for (i = 0; i < _res.nscount; i++) |
| addrs->AddrArray[i] = _res.nsaddr_list[i].sin_addr.s_addr; |
| |
| return ERROR_SUCCESS; |
| } |
| |
| #endif /* HAVE_RESOLV */ |
| |
| static DNS_STATUS dns_get_hostname_a( COMPUTER_NAME_FORMAT format, |
| LPSTR buffer, PDWORD len ) |
| { |
| char name[256]; |
| DWORD size = sizeof(name); |
| |
| if (!GetComputerNameExA( format, name, &size )) |
| return DNS_ERROR_NAME_DOES_NOT_EXIST; |
| |
| if (!buffer || (size = lstrlenA( name ) + 1) > *len) |
| { |
| *len = size; |
| return ERROR_INSUFFICIENT_BUFFER; |
| } |
| |
| lstrcpyA( buffer, name ); |
| return ERROR_SUCCESS; |
| } |
| |
| static DNS_STATUS dns_get_hostname_w( COMPUTER_NAME_FORMAT format, |
| LPWSTR buffer, PDWORD len ) |
| { |
| WCHAR name[256]; |
| DWORD size = sizeof(name); |
| |
| if (!GetComputerNameExW( format, name, &size )) |
| return DNS_ERROR_NAME_DOES_NOT_EXIST; |
| |
| if (!buffer || (size = lstrlenW( name ) + 1) > *len) |
| { |
| *len = size; |
| return ERROR_INSUFFICIENT_BUFFER; |
| } |
| |
| lstrcpyW( buffer, name ); |
| return ERROR_SUCCESS; |
| } |
| |
| /****************************************************************************** |
| * DnsQueryConfig [DNSAPI.@] |
| * |
| */ |
| DNS_STATUS WINAPI DnsQueryConfig( DNS_CONFIG_TYPE config, DWORD flag, PWSTR adapter, |
| PVOID reserved, PVOID buffer, PDWORD len ) |
| { |
| DNS_STATUS ret = ERROR_INVALID_PARAMETER; |
| |
| TRACE( "(%d,0x%08lx,%s,%p,%p,%p)\n", config, flag, debugstr_w(adapter), |
| reserved, buffer, len ); |
| |
| if (!len) return ERROR_INVALID_PARAMETER; |
| |
| switch (config) |
| { |
| case DnsConfigDnsServerList: |
| { |
| #ifdef HAVE_RESOLV |
| LOCK_RESOLVER(); |
| |
| res_init(); |
| ret = dns_get_serverlist( (IP4_ARRAY *)buffer, len ); |
| |
| UNLOCK_RESOLVER(); |
| break; |
| #else |
| WARN( "compiled without resolver support\n" ); |
| break; |
| #endif |
| } |
| case DnsConfigHostName_A: |
| case DnsConfigHostName_UTF8: |
| return dns_get_hostname_a( ComputerNameDnsHostname, buffer, len ); |
| |
| case DnsConfigFullHostName_A: |
| case DnsConfigFullHostName_UTF8: |
| return dns_get_hostname_a( ComputerNameDnsFullyQualified, buffer, len ); |
| |
| case DnsConfigPrimaryDomainName_A: |
| case DnsConfigPrimaryDomainName_UTF8: |
| return dns_get_hostname_a( ComputerNameDnsDomain, buffer, len ); |
| |
| case DnsConfigHostName_W: |
| return dns_get_hostname_w( ComputerNameDnsHostname, buffer, len ); |
| |
| case DnsConfigFullHostName_W: |
| return dns_get_hostname_w( ComputerNameDnsFullyQualified, buffer, len ); |
| |
| case DnsConfigPrimaryDomainName_W: |
| return dns_get_hostname_w( ComputerNameDnsDomain, buffer, len ); |
| |
| case DnsConfigAdapterDomainName_A: |
| case DnsConfigAdapterDomainName_W: |
| case DnsConfigAdapterDomainName_UTF8: |
| case DnsConfigSearchList: |
| case DnsConfigAdapterInfo: |
| case DnsConfigPrimaryHostNameRegistrationEnabled: |
| case DnsConfigAdapterHostNameRegistrationEnabled: |
| case DnsConfigAddressRegistrationMaxCount: |
| FIXME( "unimplemented config type %d\n", config ); |
| break; |
| |
| default: |
| WARN( "unknown config type: %d\n", config ); |
| break; |
| } |
| return ret; |
| } |