Sweden-Number/dlls/mpr/pwcache.c

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/*
* MPR Password Cache functions
*
* Copyright 1999 Ulrich Weigand
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* Copyright 2003 Mike McCormack for Codeweavers
*
* 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
*/
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#include <stdio.h>
#include "winbase.h"
#include "winnetwk.h"
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#include "winreg.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(mpr);
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static const char mpr_key[] = "Software\\Wine\\Wine\\Mpr\\";
static LPSTR MPR_GetValueName( LPSTR pbResource, WORD cbResource, BYTE nType )
{
LPSTR name;
DWORD i, x = 0;
/* just a hash so the value name doesn't get too large */
for( i=0; i<cbResource; i++ )
x = ((x<<7) | (x >> 25)) ^ toupper(pbResource[i]);
name = HeapAlloc( GetProcessHeap(), 0, 0x10 );
if( name )
sprintf( name, "I-%08lX-%02X", x, nType );
TRACE( "Value is %s\n", name );
return name;
}
/**************************************************************************
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* WNetCachePassword [MPR.@] Saves password in cache
*
* NOTES
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* only the parameter count is verifyed
*
* ---- everything below this line might be wrong (js) -----
* RETURNS
* Success: WN_SUCCESS
* Failure: WN_ACCESS_DENIED, WN_BAD_PASSWORD, WN_BADVALUE, WN_NET_ERROR,
* WN_NOT_SUPPORTED, WN_OUT_OF_MEMORY
*/
DWORD WINAPI WNetCachePassword(
LPSTR pbResource, /* [in] Name of workgroup, computer, or resource */
WORD cbResource, /* [in] Size of name */
LPSTR pbPassword, /* [in] Buffer containing password */
WORD cbPassword, /* [in] Size of password */
BYTE nType, /* [in] Type of password to cache */
WORD x)
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{
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HKEY hkey;
DWORD r;
LPSTR valname;
WARN( "(%p(%s), %d, %p(%s), %d, %d, 0x%08x): totally insecure\n",
pbResource, debugstr_a(pbResource), cbResource,
pbPassword, debugstr_a(pbPassword), cbPassword,
nType, x );
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r = RegCreateKeyA( HKEY_CURRENT_USER, mpr_key, &hkey );
if( r )
return WN_ACCESS_DENIED;
valname = MPR_GetValueName( pbResource, cbResource, nType );
if( valname )
{
r = RegSetValueExA( hkey, valname, 0, REG_BINARY,
pbPassword, cbPassword );
if( r )
r = WN_ACCESS_DENIED;
else
r = WN_SUCCESS;
HeapFree( GetProcessHeap(), 0, valname );
}
else
r = WN_OUT_OF_MEMORY;
RegCloseKey( hkey );
return r;
}
/*****************************************************************
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* WNetRemoveCachedPassword [MPR.@]
*/
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UINT WINAPI WNetRemoveCachedPassword( LPSTR pbResource, WORD cbResource,
BYTE nType )
{
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HKEY hkey;
DWORD r;
LPSTR valname;
WARN( "(%p(%s), %d, %d): totally insecure\n",
pbResource, debugstr_a(pbResource), cbResource, nType );
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r = RegCreateKeyA( HKEY_CURRENT_USER, mpr_key, &hkey );
if( r )
return WN_ACCESS_DENIED;
valname = MPR_GetValueName( pbResource, cbResource, nType );
if( valname )
{
r = RegDeleteValueA( hkey, valname );
if( r )
r = WN_ACCESS_DENIED;
else
r = WN_SUCCESS;
HeapFree( GetProcessHeap(), 0, valname );
}
else
r = WN_OUT_OF_MEMORY;
return r;
}
/*****************************************************************
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* WNetGetCachedPassword [MPR.@] Retrieves password from cache
*
* NOTES
* the stub seems to be wrong:
* arg1: ptr 0x40xxxxxx -> (no string)
* arg2: len 36
* arg3: ptr 0x40xxxxxx -> (no string)
* arg4: ptr 0x40xxxxxx -> 0xc8
* arg5: type? 4
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*
* ---- everything below this line might be wrong (js) -----
* RETURNS
* Success: WN_SUCCESS
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* Failure: WN_ACCESS_DENIED, WN_BAD_PASSWORD, WN_BAD_VALUE,
* WN_NET_ERROR, WN_NOT_SUPPORTED, WN_OUT_OF_MEMORY
*/
DWORD WINAPI WNetGetCachedPassword(
LPSTR pbResource, /* [in] Name of workgroup, computer, or resource */
WORD cbResource, /* [in] Size of name */
LPSTR pbPassword, /* [out] Buffer to receive password */
LPWORD pcbPassword, /* [out] Receives size of password */
BYTE nType) /* [in] Type of password to retrieve */
{
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HKEY hkey;
DWORD r, type = 0, sz;
LPSTR valname;
WARN( "(%p(%s), %d, %p, %p, %d): stub\n",
pbResource, debugstr_a(pbResource), cbResource,
pbPassword, pcbPassword, nType );
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r = RegCreateKeyA( HKEY_CURRENT_USER, mpr_key, &hkey );
if( r )
return WN_ACCESS_DENIED;
valname = MPR_GetValueName( pbResource, cbResource, nType );
if( valname )
{
sz = *pcbPassword;
r = RegQueryValueExA( hkey, valname, 0, &type, pbPassword, &sz );
*pcbPassword = sz;
if( r )
r = WN_ACCESS_DENIED;
else
r = WN_SUCCESS;
HeapFree( GetProcessHeap(), 0, valname );
}
else
r = WN_OUT_OF_MEMORY;
return r;
}
/*******************************************************************
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* WNetEnumCachedPasswords [MPR.@]
*
* NOTES
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* the parameter count is verifyed
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*
* This function is a huge security risk, as virii and such can use
* it to grab all the passwords in the cache. It's bad enough to
* store the passwords (insecurely).
*
* observed values:
* arg1 ptr 0x40xxxxxx -> (no string)
* arg2 int 32
* arg3 type? 4
* arg4 enumPasswordProc (verifyed)
* arg5 ptr 0x40xxxxxx -> 0x0
*
* ---- everything below this line might be wrong (js) -----
*/
UINT WINAPI WNetEnumCachedPasswords( LPSTR pbPrefix, WORD cbPrefix,
BYTE nType, ENUMPASSWORDPROC enumPasswordProc, DWORD x)
{
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WARN( "(%p(%s), %d, %d, %p, 0x%08lx): don't implement this\n",
pbPrefix, debugstr_a(pbPrefix), cbPrefix,
nType, enumPasswordProc, x );
return WN_NOT_SUPPORTED;
}