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wine/dlls/propsys/propsys_main.c

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/*
* propsys main
*
* Copyright 1997, 2002 Alexandre Julliard
* Copyright 2008 James Hawkins
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "propsys.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(propsys);
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
switch (fdwReason)
{
case DLL_WINE_PREATTACH:
return FALSE; /* prefer native version */
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hinstDLL);
break;
case DLL_PROCESS_DETACH:
break;
default:
break;
}
return TRUE;
}
HRESULT WINAPI PSRegisterPropertySchema(PCWSTR path)
{
FIXME("%s stub\n", debugstr_w(path));
return S_OK;
}
HRESULT WINAPI PSUnregisterPropertySchema(PCWSTR path)
{
FIXME("%s stub\n", debugstr_w(path));
return E_NOTIMPL;
}
HRESULT WINAPI PSGetPropertyDescription(REFPROPERTYKEY propkey, REFIID riid, void **ppv)
{
FIXME("%p, %p, %p\n", propkey, riid, ppv);
return E_NOTIMPL;
}
HRESULT WINAPI PSStringFromPropertyKey(REFPROPERTYKEY pkey, LPWSTR psz, UINT cch)
{
static const WCHAR guid_fmtW[] = {'{','%','0','8','X','-','%','0','4','X','-',
'%','0','4','X','-','%','0','2','X','%','0','2','X','-',
'%','0','2','X','%','0','2','X','%','0','2','X',
'%','0','2','X','%','0','2','X','%','0','2','X','}',0};
static const WCHAR pid_fmtW[] = {'%','u',0};
WCHAR pidW[PKEY_PIDSTR_MAX + 1];
LPWSTR p = psz;
int len;
TRACE("(%p, %p, %u)\n", pkey, psz, cch);
if (!psz)
return E_POINTER;
/* GUIDSTRING_MAX accounts for null terminator, +1 for space character. */
if (cch <= GUIDSTRING_MAX + 1)
return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
if (!pkey)
{
psz[0] = '\0';
return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
}
sprintfW(psz, guid_fmtW, pkey->fmtid.Data1, pkey->fmtid.Data2,
pkey->fmtid.Data3, pkey->fmtid.Data4[0], pkey->fmtid.Data4[1],
pkey->fmtid.Data4[2], pkey->fmtid.Data4[3], pkey->fmtid.Data4[4],
pkey->fmtid.Data4[5], pkey->fmtid.Data4[6], pkey->fmtid.Data4[7]);
/* Overwrite the null terminator with the space character. */
p += GUIDSTRING_MAX - 1;
*p++ = ' ';
cch -= GUIDSTRING_MAX - 1 + 1;
len = sprintfW(pidW, pid_fmtW, pkey->pid);
if (cch >= len + 1)
{
strcpyW(p, pidW);
return S_OK;
}
else
{
WCHAR *ptr = pidW + len - 1;
psz[0] = '\0';
*p++ = '\0';
cch--;
/* Replicate a quirk of the native implementation where the contents
* of the property ID string are written backwards to the output
* buffer, skipping the rightmost digit. */
if (cch)
{
ptr--;
while (cch--)
*p++ = *ptr--;
}
return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
}
}
static const BYTE hex2bin[] =
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x00 */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x10 */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x20 */
0,1,2,3,4,5,6,7,8,9,0,0,0,0,0,0, /* 0x30 */
0,10,11,12,13,14,15,0,0,0,0,0,0,0,0,0, /* 0x40 */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x50 */
0,10,11,12,13,14,15 /* 0x60 */
};
static BOOL validate_indices(LPCWSTR s, int min, int max)
{
int i;
for (i = min; i <= max; i++)
{
if (!s[i])
return FALSE;
if (i == 0)
{
if (s[i] != '{')
return FALSE;
}
else if (i == 9 || i == 14 || i == 19 || i == 24)
{
if (s[i] != '-')
return FALSE;
}
else if (i == 37)
{
if (s[i] != '}')
return FALSE;
}
else
{
if (s[i] > 'f' || (!hex2bin[s[i]] && s[i] != '0'))
return FALSE;
}
}
return TRUE;
}
/* Adapted from CLSIDFromString helper in dlls/ole32/compobj.c and
* UuidFromString in dlls/rpcrt4/rpcrt4_main.c. */
static BOOL string_to_guid(LPCWSTR s, LPGUID id)
{
/* in form {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX} */
if (!validate_indices(s, 0, 8)) return FALSE;
id->Data1 = (hex2bin[s[1]] << 28 | hex2bin[s[2]] << 24 | hex2bin[s[3]] << 20 | hex2bin[s[4]] << 16 |
hex2bin[s[5]] << 12 | hex2bin[s[6]] << 8 | hex2bin[s[7]] << 4 | hex2bin[s[8]]);
if (!validate_indices(s, 9, 14)) return FALSE;
id->Data2 = hex2bin[s[10]] << 12 | hex2bin[s[11]] << 8 | hex2bin[s[12]] << 4 | hex2bin[s[13]];
if (!validate_indices(s, 15, 19)) return FALSE;
id->Data3 = hex2bin[s[15]] << 12 | hex2bin[s[16]] << 8 | hex2bin[s[17]] << 4 | hex2bin[s[18]];
/* these are just sequential bytes */
if (!validate_indices(s, 20, 21)) return FALSE;
id->Data4[0] = hex2bin[s[20]] << 4 | hex2bin[s[21]];
if (!validate_indices(s, 22, 24)) return FALSE;
id->Data4[1] = hex2bin[s[22]] << 4 | hex2bin[s[23]];
if (!validate_indices(s, 25, 26)) return FALSE;
id->Data4[2] = hex2bin[s[25]] << 4 | hex2bin[s[26]];
if (!validate_indices(s, 27, 28)) return FALSE;
id->Data4[3] = hex2bin[s[27]] << 4 | hex2bin[s[28]];
if (!validate_indices(s, 29, 30)) return FALSE;
id->Data4[4] = hex2bin[s[29]] << 4 | hex2bin[s[30]];
if (!validate_indices(s, 31, 32)) return FALSE;
id->Data4[5] = hex2bin[s[31]] << 4 | hex2bin[s[32]];
if (!validate_indices(s, 33, 34)) return FALSE;
id->Data4[6] = hex2bin[s[33]] << 4 | hex2bin[s[34]];
if (!validate_indices(s, 35, 37)) return FALSE;
id->Data4[7] = hex2bin[s[35]] << 4 | hex2bin[s[36]];
return TRUE;
}
HRESULT WINAPI PSPropertyKeyFromString(LPCWSTR pszString, PROPERTYKEY *pkey)
{
int has_minus = 0, has_comma = 0;
TRACE("(%s, %p)\n", debugstr_w(pszString), pkey);
if (!pszString || !pkey)
return E_POINTER;
memset(pkey, 0, sizeof(PROPERTYKEY));
if (!string_to_guid(pszString, &pkey->fmtid))
return E_INVALIDARG;
pszString += GUIDSTRING_MAX - 1;
if (!*pszString)
return E_INVALIDARG;
/* Only the space seems to be recognized as whitespace. The comma is only
* recognized once and processing terminates if another comma is found. */
while (*pszString == ' ' || *pszString == ',')
{
if (*pszString == ',')
{
if (has_comma)
return S_OK;
else
has_comma = 1;
}
pszString++;
}
if (!*pszString)
return E_INVALIDARG;
/* Only two minus signs are recognized if no comma is detected. The first
* sign is ignored, and the second is interpreted. If a comma is detected
* before the minus sign, then only one minus sign counts, and property ID
* interpretation begins with the next character. */
if (has_comma)
{
if (*pszString == '-')
{
has_minus = 1;
pszString++;
}
}
else
{
if (*pszString == '-')
pszString++;
/* Skip any intermediate spaces after the first minus sign. */
while (*pszString == ' ')
pszString++;
if (*pszString == '-')
{
has_minus = 1;
pszString++;
}
/* Skip any remaining spaces after minus sign. */
while (*pszString == ' ')
pszString++;
}
/* Overflow is not checked. */
while (isdigitW(*pszString))
{
pkey->pid *= 10;
pkey->pid += (*pszString - '0');
pszString++;
}
if (has_minus)
pkey->pid = ~pkey->pid + 1;
return S_OK;
}
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