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reactos/sdk/lib/dnslib/straddr.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS DNS Shared Library
* FILE: lib/dnslib/straddr.c
* PURPOSE: Functions for address<->string conversion.
*/
/* INCLUDES ******************************************************************/
#include "precomp.h"
/* DATA **********************************************************************/
/* FUNCTIONS *****************************************************************/
LPWSTR
WINAPI
Dns_Ip6AddressToReverseName_W(OUT LPWSTR Name,
IN IN6_ADDR Address)
{
/* FIXME */
return NULL;
}
LPWSTR
WINAPI
Dns_Ip4AddressToReverseName_W(OUT LPWSTR Name,
IN IN_ADDR Address)
{
/* Simply append the ARPA string */
return Name + (wsprintfW(Name,
L"%u.%u.%u.%u.in-addr.arpa.",
Address.S_un.S_addr >> 24,
Address.S_un.S_addr >> 10,
Address.S_un.S_addr >> 8,
Address.S_un.S_addr) * sizeof(WCHAR));
}
BOOLEAN
WINAPI
Dns_Ip4ReverseNameToAddress_A(OUT PIN_ADDR Address,
IN LPSTR Name)
{
/* FIXME */
return FALSE;
}
BOOLEAN
WINAPI
Dns_Ip6ReverseNameToAddress_A(OUT PIN6_ADDR Address,
IN LPSTR Name)
{
/* FIXME */
return FALSE;
}
BOOLEAN
WINAPI
Dns_Ip6StringToAddress_A(OUT PIN6_ADDR Address,
IN LPSTR Name)
{
PCHAR Terminator;
NTSTATUS Status;
/* Let RTL Do it for us */
Status = RtlIpv6StringToAddressA(Name, &Terminator, Address);
if (NT_SUCCESS(Status)) return TRUE;
/* We failed */
return FALSE;
}
BOOLEAN
WINAPI
Dns_Ip6StringToAddress_W(OUT PIN6_ADDR Address,
IN LPWSTR Name)
{
PCHAR Terminator;
NTSTATUS Status;
/* Let RTL Do it for us */
Status = RtlIpv6StringToAddressW(Name, &Terminator, Address);
if (NT_SUCCESS(Status)) return TRUE;
/* We failed */
return FALSE;
}
BOOLEAN
WINAPI
Dns_Ip4StringToAddress_A(OUT PIN_ADDR Address,
IN LPSTR Name)
{
ULONG Addr;
/* Use inet_addr to convert it... */
Addr = inet_addr(Name);
if (Addr == -1)
{
/* Check if it's the wildcard (which is ok...) */
if (strcmp("255.255.255.255", Name)) return FALSE;
}
/* If we got here, then we suceeded... return the address */
Address->S_un.S_addr = Addr;
return TRUE;
}
BOOLEAN
WINAPI
Dns_Ip4StringToAddress_W(OUT PIN_ADDR Address,
IN LPWSTR Name)
{
CHAR AnsiName[16];
ULONG Size = sizeof(AnsiName);
INT ErrorCode;
/* Make a copy of the name in ANSI */
ErrorCode = Dns_StringCopy(&AnsiName,
&Size,
Name,
0,
UnicodeString,
AnsiString);
if (ErrorCode)
{
/* Copy made sucesfully, now convert it */
ErrorCode = Dns_Ip4StringToAddress_A(Address, AnsiName);
}
/* Return either 0 bytes copied (failure == false) or conversion status */
return ErrorCode;
}
BOOLEAN
WINAPI
Dns_Ip4ReverseNameToAddress_W(OUT PIN_ADDR Address,
IN LPWSTR Name)
{
CHAR AnsiName[32];
ULONG Size = sizeof(AnsiName);
INT ErrorCode;
/* Make a copy of the name in ANSI */
ErrorCode = Dns_StringCopy(&AnsiName,
&Size,
Name,
0,
UnicodeString,
AnsiString);
if (ErrorCode)
{
/* Copy made sucesfully, now convert it */
ErrorCode = Dns_Ip4ReverseNameToAddress_A(Address, AnsiName);
}
/* Return either 0 bytes copied (failure == false) or conversion status */
return ErrorCode;
}
BOOLEAN
WINAPI
Dns_StringToAddressEx(OUT PVOID Address,
IN OUT PULONG AddressSize,
IN PVOID AddressName,
IN OUT PDWORD AddressFamily,
IN BOOLEAN Unicode,
IN BOOLEAN Reverse)
{
DWORD Af = *AddressFamily;
ULONG AddrSize = *AddressSize;
IN6_ADDR Addr;
BOOLEAN Return;
INT ErrorCode = ERROR_SUCCESS;
CHAR AnsiName[INET6_ADDRSTRLEN + sizeof("ip6.arpa.")];
ULONG Size = sizeof(AnsiName);
/* First check if this is a reverse address string */
if (Reverse)
{
/* Convert it right now to ANSI as an optimization */
Dns_StringCopy(AnsiName,
&Size,
AddressName,
0,
UnicodeString,
AnsiString);
/* Use the ANSI Name instead */
AddressName = AnsiName;
}
/*
* If the caller doesn't know what the family is, we'll assume IPv4 and
* check if we failed or not. If the caller told us it's IPv4, then just
* do IPv4...
*/
if ((Af == AF_UNSPEC) || (Af == AF_INET))
{
/* Now check if the caller gave us the reverse name or not */
if (Reverse)
{
/* Get the Address */
Return = Dns_Ip4ReverseNameToAddress_A((PIN_ADDR)&Addr, AddressName);
}
else
{
/* Check if the caller gave us unicode or not */
if (Unicode)
{
/* Get the Address */
Return = Dns_Ip4StringToAddress_W((PIN_ADDR)&Addr, AddressName);
}
else
{
/* Get the Address */
Return = Dns_Ip4StringToAddress_A((PIN_ADDR)&Addr, AddressName);
}
}
/* Check if we suceeded */
if (Return)
{
/* Save address family */
Af = AF_INET;
/* Check if the address size matches */
if (AddrSize < sizeof(IN_ADDR))
{
/* Invalid match, set error code */
ErrorCode = ERROR_MORE_DATA;
}
else
{
/* It matches, save the address! */
*(PIN_ADDR)Address = *(PIN_ADDR)&Addr;
}
}
}
/* If we are here, either AF_INET6 was specified or IPv4 failed */
if ((Af == AF_UNSPEC) || (Af == AF_INET6))
{
/* Now check if the caller gave us the reverse name or not */
if (Reverse)
{
/* Get the Address */
Return = Dns_Ip6ReverseNameToAddress_A(&Addr, AddressName);
}
else
{
/* Check if the caller gave us unicode or not */
if (Unicode)
{
/* Get the Address */
Return = Dns_Ip6StringToAddress_W(&Addr, AddressName);
}
else
{
/* Get the Address */
Return = Dns_Ip6StringToAddress_A(&Addr, AddressName);
}
}
/* Check if we suceeded */
if (Return)
{
/* Save address family */
Af = AF_INET6;
/* Check if the address size matches */
if (AddrSize < sizeof(IN6_ADDR))
{
/* Invalid match, set error code */
ErrorCode = ERROR_MORE_DATA;
}
else
{
/* It matches, save the address! */
*(PIN6_ADDR)Address = Addr;
}
}
}
else if (Af != AF_INET)
{
/* You're like.. ATM or something? Get outta here! */
Af = AF_UNSPEC;
ErrorCode = WSA_INVALID_PARAMETER;
}
/* Set error if we had one */
if (ErrorCode) SetLastError(ErrorCode);
/* Return the address family and size */
*AddressFamily = Af;
*AddressSize = AddrSize;
/* Return success or failure */
return (ErrorCode == ERROR_SUCCESS);
}
BOOLEAN
WINAPI
Dns_StringToAddressW(OUT PVOID Address,
IN OUT PULONG AddressSize,
IN LPWSTR AddressName,
IN OUT PDWORD AddressFamily)
{
/* Call the common API */
return Dns_StringToAddressEx(Address,
AddressSize,
AddressName,
AddressFamily,
TRUE,
FALSE);
}
BOOLEAN
WINAPI
Dns_StringToDnsAddrEx(OUT PDNS_ADDRESS DnsAddr,
IN PVOID AddressName,
IN DWORD AddressFamily,
IN BOOLEAN Unicode,
IN BOOLEAN Reverse)
{
IN6_ADDR Addr;
BOOLEAN Return;
INT ErrorCode = ERROR_SUCCESS;
CHAR AnsiName[INET6_ADDRSTRLEN + sizeof("ip6.arpa.")];
ULONG Size = sizeof(AnsiName);
/* First check if this is a reverse address string */
if ((Reverse) && (Unicode))
{
/* Convert it right now to ANSI as an optimization */
Dns_StringCopy(AnsiName,
&Size,
AddressName,
0,
UnicodeString,
AnsiString);
/* Use the ANSI Name instead */
AddressName = AnsiName;
}
/*
* If the caller doesn't know what the family is, we'll assume IPv4 and
* check if we failed or not. If the caller told us it's IPv4, then just
* do IPv4...
*/
if ((AddressFamily == AF_UNSPEC) || (AddressFamily == AF_INET))
{
/* Now check if the caller gave us the reverse name or not */
if (Reverse)
{
/* Get the Address */
Return = Dns_Ip4ReverseNameToAddress_A((PIN_ADDR)&Addr, AddressName);
}
else
{
/* Check if the caller gave us unicode or not */
if (Unicode)
{
/* Get the Address */
Return = Dns_Ip4StringToAddress_W((PIN_ADDR)&Addr, AddressName);
}
else
{
/* Get the Address */
Return = Dns_Ip4StringToAddress_A((PIN_ADDR)&Addr, AddressName);
}
}
/* Check if we suceeded */
if (Return)
{
/* Build the IPv4 Address */
DnsAddr_BuildFromIp4(DnsAddr, *(PIN_ADDR)&Addr, 0);
/* So we don't go in the code below... */
AddressFamily = AF_INET;
}
}
/* If we are here, either AF_INET6 was specified or IPv4 failed */
if ((AddressFamily == AF_UNSPEC) || (AddressFamily == AF_INET6))
{
/* Now check if the caller gave us the reverse name or not */
if (Reverse)
{
/* Get the Address */
Return = Dns_Ip6ReverseNameToAddress_A(&Addr, AddressName);
if (Return)
{
/* Build the IPv6 Address */
DnsAddr_BuildFromIp6(DnsAddr, &Addr, 0, 0);
}
else
{
goto Quickie;
}
}
else
{
/* Check if the caller gave us unicode or not */
if (Unicode)
{
/* Get the Address */
if (NT_SUCCESS(RtlIpv6StringToAddressExW(AddressName,
&DnsAddr->Ip6Address.sin6_addr,
&DnsAddr->Ip6Address.sin6_scope_id,
&DnsAddr->Ip6Address.sin6_port)))
Return = TRUE;
else
Return = FALSE;
}
else
{
/* Get the Address */
if (NT_SUCCESS(RtlIpv6StringToAddressExA(AddressName,
&DnsAddr->Ip6Address.sin6_addr,
&DnsAddr->Ip6Address.sin6_scope_id,
&DnsAddr->Ip6Address.sin6_port)))
Return = TRUE;
else
Return = FALSE;
}
}
/* Check if we suceeded */
if (Return)
{
/* Finish setting up the structure */
DnsAddr->Ip6Address.sin6_family = AF_INET6;
DnsAddr->AddressLength = sizeof(SOCKADDR_IN6);
}
}
else if (AddressFamily != AF_INET)
{
/* You're like.. ATM or something? Get outta here! */
RtlZeroMemory(DnsAddr, sizeof(DNS_ADDRESS));
SetLastError(WSA_INVALID_PARAMETER);
}
Quickie:
/* Return success or failure */
return (ErrorCode == ERROR_SUCCESS);
}
BOOLEAN
WINAPI
Dns_ReverseNameToDnsAddr_W(OUT PDNS_ADDRESS DnsAddr,
IN LPWSTR Name)
{
/* Call the common API */
return Dns_StringToDnsAddrEx(DnsAddr,
Name,
AF_UNSPEC,
TRUE,
TRUE);
}
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