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wine/dlls/shlwapi/string.c
Alex Henrie 0a6ea2d324 shlwapi: Use CRT allocation functions.
2023-09-04 11:42:28 +02:00

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/*
* Shlwapi string functions
*
* Copyright 1998 Juergen Schmied
* Copyright 2002 Jon Griffiths
*
* 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 <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#define NO_SHLWAPI_REG
#define NO_SHLWAPI_STREAM
#include "shlwapi.h"
#include "wingdi.h"
#include "winuser.h"
#include "shlobj.h"
#include "mlang.h"
#include "ddeml.h"
#include "wine/debug.h"
#include "resource.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
extern HINSTANCE shlwapi_hInstance;
static HRESULT _SHStrDupAA(LPCSTR,LPSTR*);
static HRESULT _SHStrDupAW(LPCWSTR,LPSTR*);
DWORD WINAPI SHTruncateString(LPSTR lpStr, DWORD size);
static void FillNumberFmt(NUMBERFMTW *fmt, LPWSTR decimal_buffer, int decimal_bufwlen,
LPWSTR thousand_buffer, int thousand_bufwlen)
{
WCHAR grouping[64];
WCHAR *c;
GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_ILZERO|LOCALE_RETURN_NUMBER, (LPWSTR)&fmt->LeadingZero, sizeof(fmt->LeadingZero)/sizeof(WCHAR));
GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_INEGNUMBER|LOCALE_RETURN_NUMBER, (LPWSTR)&fmt->NegativeOrder, sizeof(fmt->NegativeOrder)/sizeof(WCHAR));
fmt->NumDigits = 0;
GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SDECIMAL, decimal_buffer, decimal_bufwlen);
GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_STHOUSAND, thousand_buffer, thousand_bufwlen);
fmt->lpThousandSep = thousand_buffer;
fmt->lpDecimalSep = decimal_buffer;
/*
* Converting grouping string to number as described on
* http://blogs.msdn.com/oldnewthing/archive/2006/04/18/578251.aspx
*/
fmt->Grouping = 0;
GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SGROUPING, grouping, ARRAY_SIZE(grouping));
for (c = grouping; *c; c++)
if (*c >= '0' && *c < '9')
{
fmt->Grouping *= 10;
fmt->Grouping += *c - '0';
}
if (fmt->Grouping % 10 == 0)
fmt->Grouping /= 10;
else
fmt->Grouping *= 10;
}
/*************************************************************************
* FormatInt [internal]
*
* Format an integer according to the current locale
*
* RETURNS
* The number of characters written on success or 0 on failure
*/
static int FormatInt(LONGLONG qdwValue, LPWSTR pszBuf, int cchBuf)
{
NUMBERFMTW fmt;
WCHAR decimal[8], thousand[8];
WCHAR buf[24];
WCHAR *c;
BOOL neg = (qdwValue < 0);
FillNumberFmt(&fmt, decimal, ARRAY_SIZE(decimal), thousand, ARRAY_SIZE(thousand));
c = &buf[24];
*(--c) = 0;
do
{
*(--c) = '0' + (qdwValue%10);
qdwValue /= 10;
} while (qdwValue > 0);
if (neg)
*(--c) = '-';
return GetNumberFormatW(LOCALE_USER_DEFAULT, 0, c, &fmt, pszBuf, cchBuf);
}
/*************************************************************************
* FormatDouble [internal]
*
* Format an integer according to the current locale. Prints the specified number of digits
* after the decimal point
*
* RETURNS
* The number of characters written on success or 0 on failure
*/
static int FormatDouble(double value, int decimals, LPWSTR pszBuf, int cchBuf)
{
static const WCHAR flfmt[] = {'%','f',0};
WCHAR buf[64];
NUMBERFMTW fmt;
WCHAR decimal[8], thousand[8];
swprintf(buf, 64, flfmt, value);
FillNumberFmt(&fmt, decimal, ARRAY_SIZE(decimal), thousand, ARRAY_SIZE(thousand));
fmt.NumDigits = decimals;
return GetNumberFormatW(LOCALE_USER_DEFAULT, 0, buf, &fmt, pszBuf, cchBuf);
}
/*************************************************************************
* StrCatW [SHLWAPI.@]
*
* Concatenate two strings.
*
* PARAMS
* lpszStr [O] Initial string
* lpszSrc [I] String to concatenate
*
* RETURNS
* lpszStr.
*/
LPWSTR WINAPI StrCatW(LPWSTR lpszStr, LPCWSTR lpszSrc)
{
TRACE("(%s,%s)\n", debugstr_w(lpszStr), debugstr_w(lpszSrc));
if (lpszStr && lpszSrc)
lstrcatW(lpszStr, lpszSrc);
return lpszStr;
}
/*************************************************************************
* StrCpyW [SHLWAPI.@]
*
* Copy a string to another string.
*
* PARAMS
* lpszStr [O] Destination string
* lpszSrc [I] Source string
*
* RETURNS
* lpszStr.
*/
LPWSTR WINAPI StrCpyW(LPWSTR lpszStr, LPCWSTR lpszSrc)
{
TRACE("(%p,%s)\n", lpszStr, debugstr_w(lpszSrc));
if (lpszStr && lpszSrc)
lstrcpyW(lpszStr, lpszSrc);
return lpszStr;
}
/*************************************************************************
* StrRetToBufA [SHLWAPI.@]
*
* Convert a STRRET to a normal string.
*
* PARAMS
* lpStrRet [O] STRRET to convert
* pIdl [I] ITEMIDLIST for lpStrRet->uType == STRRET_OFFSET
* lpszDest [O] Destination for normal string
* dwLen [I] Length of lpszDest
*
* RETURNS
* Success: S_OK. lpszDest contains up to dwLen characters of the string.
* If lpStrRet is of type STRRET_WSTR, its memory is freed with
* CoTaskMemFree() and its type set to STRRET_CSTRA.
* Failure: E_FAIL, if any parameters are invalid.
*/
HRESULT WINAPI StrRetToBufA (LPSTRRET src, const ITEMIDLIST *pidl, LPSTR dest, UINT len)
{
/* NOTE:
* This routine is identical to that in dlls/shell32/shellstring.c.
* It was duplicated because not every version of Shlwapi.dll exports
* StrRetToBufA. If you change one routine, change them both.
*/
TRACE("dest=%p len=0x%x strret=%p pidl=%p\n", dest, len, src, pidl);
if (!src)
{
WARN("Invalid lpStrRet would crash under Win32!\n");
if (dest)
*dest = '\0';
return E_FAIL;
}
if (!dest || !len)
return E_FAIL;
*dest = '\0';
switch (src->uType)
{
case STRRET_WSTR:
WideCharToMultiByte(CP_ACP, 0, src->pOleStr, -1, dest, len, NULL, NULL);
CoTaskMemFree(src->pOleStr);
break;
case STRRET_CSTR:
lstrcpynA(dest, src->cStr, len);
break;
case STRRET_OFFSET:
lstrcpynA(dest, ((LPCSTR)&pidl->mkid)+src->uOffset, len);
break;
default:
FIXME("unknown type!\n");
return E_NOTIMPL;
}
return S_OK;
}
/*************************************************************************
* StrRetToBufW [SHLWAPI.@]
*
* See StrRetToBufA.
*/
HRESULT WINAPI StrRetToBufW (LPSTRRET src, const ITEMIDLIST *pidl, LPWSTR dest, UINT len)
{
TRACE("dest=%p len=0x%x strret=%p pidl=%p\n", dest, len, src, pidl);
if (!dest || !len)
return E_FAIL;
if (!src)
{
WARN("Invalid lpStrRet would crash under Win32!\n");
*dest = '\0';
return E_FAIL;
}
*dest = '\0';
switch (src->uType) {
case STRRET_WSTR: {
size_t dst_len;
if (!src->pOleStr)
return E_FAIL;
dst_len = lstrlenW(src->pOleStr);
memcpy(dest, src->pOleStr, min(dst_len, len-1) * sizeof(WCHAR));
dest[min(dst_len, len-1)] = 0;
CoTaskMemFree(src->pOleStr);
if (len <= dst_len)
{
dest[0] = 0;
return E_NOT_SUFFICIENT_BUFFER;
}
break;
}
case STRRET_CSTR:
if (!MultiByteToWideChar( CP_ACP, 0, src->cStr, -1, dest, len ))
dest[len-1] = 0;
break;
case STRRET_OFFSET:
if (pidl)
{
if (!MultiByteToWideChar( CP_ACP, 0, ((LPCSTR)&pidl->mkid)+src->uOffset, -1,
dest, len ))
dest[len-1] = 0;
}
break;
default:
FIXME("unknown type!\n");
return E_NOTIMPL;
}
return S_OK;
}
/*************************************************************************
* StrRetToStrA [SHLWAPI.@]
*
* Converts a STRRET to a normal string.
*
* PARAMS
* lpStrRet [O] STRRET to convert
* pidl [I] ITEMIDLIST for lpStrRet->uType == STRRET_OFFSET
* ppszName [O] Destination for converted string
*
* RETURNS
* Success: S_OK. ppszName contains the new string, allocated with CoTaskMemAlloc().
* Failure: E_FAIL, if any parameters are invalid.
*/
HRESULT WINAPI StrRetToStrA(LPSTRRET lpStrRet, const ITEMIDLIST *pidl, LPSTR *ppszName)
{
HRESULT hRet = E_FAIL;
switch (lpStrRet->uType)
{
case STRRET_WSTR:
hRet = _SHStrDupAW(lpStrRet->pOleStr, ppszName);
CoTaskMemFree(lpStrRet->pOleStr);
break;
case STRRET_CSTR:
hRet = _SHStrDupAA(lpStrRet->cStr, ppszName);
break;
case STRRET_OFFSET:
hRet = _SHStrDupAA(((LPCSTR)&pidl->mkid) + lpStrRet->uOffset, ppszName);
break;
default:
*ppszName = NULL;
}
return hRet;
}
/*************************************************************************
* StrRetToStrW [SHLWAPI.@]
*
* See StrRetToStrA.
*/
HRESULT WINAPI StrRetToStrW(LPSTRRET lpStrRet, const ITEMIDLIST *pidl, LPWSTR *ppszName)
{
HRESULT hRet = E_FAIL;
switch (lpStrRet->uType)
{
case STRRET_WSTR:
hRet = SHStrDupW(lpStrRet->pOleStr, ppszName);
CoTaskMemFree(lpStrRet->pOleStr);
break;
case STRRET_CSTR:
hRet = SHStrDupA(lpStrRet->cStr, ppszName);
break;
case STRRET_OFFSET:
hRet = SHStrDupA(((LPCSTR)&pidl->mkid) + lpStrRet->uOffset, ppszName);
break;
default:
*ppszName = NULL;
}
return hRet;
}
/* Makes a Unicode copy of an ANSI string using SysAllocString() */
static HRESULT _SHStrDupAToBSTR(LPCSTR src, BSTR *pBstrOut)
{
*pBstrOut = NULL;
if (src)
{
INT len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0);
WCHAR *szTemp = malloc(len * sizeof(WCHAR));
if (szTemp)
{
MultiByteToWideChar(CP_ACP, 0, src, -1, szTemp, len);
*pBstrOut = SysAllocString(szTemp);
free(szTemp);
if (*pBstrOut)
return S_OK;
}
}
return E_OUTOFMEMORY;
}
/*************************************************************************
* StrRetToBSTR [SHLWAPI.@]
*
* Converts a STRRET to a BSTR.
*
* PARAMS
* lpStrRet [O] STRRET to convert
* pidl [I] ITEMIDLIST for lpStrRet->uType = STRRET_OFFSET
* pBstrOut [O] Destination for converted BSTR
*
* RETURNS
* Success: S_OK. pBstrOut contains the new string.
* Failure: E_FAIL, if any parameters are invalid.
*/
HRESULT WINAPI StrRetToBSTR(STRRET *lpStrRet, LPCITEMIDLIST pidl, BSTR* pBstrOut)
{
HRESULT hRet = E_FAIL;
switch (lpStrRet->uType)
{
case STRRET_WSTR:
*pBstrOut = SysAllocString(lpStrRet->pOleStr);
if (*pBstrOut)
hRet = S_OK;
CoTaskMemFree(lpStrRet->pOleStr);
break;
case STRRET_CSTR:
hRet = _SHStrDupAToBSTR(lpStrRet->cStr, pBstrOut);
break;
case STRRET_OFFSET:
hRet = _SHStrDupAToBSTR(((LPCSTR)&pidl->mkid) + lpStrRet->uOffset, pBstrOut);
break;
default:
*pBstrOut = NULL;
}
return hRet;
}
/*************************************************************************
* StrFormatKBSizeA [SHLWAPI.@]
*
* Create a formatted string containing a byte count in Kilobytes.
*
* PARAMS
* llBytes [I] Byte size to format
* lpszDest [I] Destination for formatted string
* cchMax [I] Size of lpszDest
*
* RETURNS
* lpszDest.
*/
LPSTR WINAPI StrFormatKBSizeA(LONGLONG llBytes, LPSTR lpszDest, UINT cchMax)
{
WCHAR wszBuf[256];
if (!StrFormatKBSizeW(llBytes, wszBuf, 256))
return NULL;
if (!WideCharToMultiByte(CP_ACP, 0, wszBuf, -1, lpszDest, cchMax, NULL, NULL))
return NULL;
return lpszDest;
}
/*************************************************************************
* StrFormatKBSizeW [SHLWAPI.@]
*
* See StrFormatKBSizeA.
*/
LPWSTR WINAPI StrFormatKBSizeW(LONGLONG llBytes, LPWSTR lpszDest, UINT cchMax)
{
static const WCHAR kb[] = {' ','K','B',0};
LONGLONG llKB = (llBytes + 1023) >> 10;
int len;
TRACE("(0x%s,%p,%d)\n", wine_dbgstr_longlong(llBytes), lpszDest, cchMax);
if (!FormatInt(llKB, lpszDest, cchMax))
return NULL;
len = lstrlenW(lpszDest);
if (cchMax - len < 4)
return NULL;
lstrcatW(lpszDest, kb);
return lpszDest;
}
/*************************************************************************
* StrNCatA [SHLWAPI.@]
*
* Concatenate two strings together.
*
* PARAMS
* lpszStr [O] String to concatenate to
* lpszCat [I] String to add to lpszCat
* cchMax [I] Maximum number of characters to concatenate
*
* RETURNS
* lpszStr.
*
* NOTES
* cchMax determines the number of characters that are appended to lpszStr,
* not the total length of the string.
*/
LPSTR WINAPI StrNCatA(LPSTR lpszStr, LPCSTR lpszCat, INT cchMax)
{
LPSTR lpszRet = lpszStr;
TRACE("(%s,%s,%i)\n", debugstr_a(lpszStr), debugstr_a(lpszCat), cchMax);
if (!lpszStr)
{
WARN("Invalid lpszStr would crash under Win32!\n");
return NULL;
}
StrCpyNA(lpszStr + strlen(lpszStr), lpszCat, cchMax);
return lpszRet;
}
/*************************************************************************
* StrNCatW [SHLWAPI.@]
*
* See StrNCatA.
*/
LPWSTR WINAPI StrNCatW(LPWSTR lpszStr, LPCWSTR lpszCat, INT cchMax)
{
LPWSTR lpszRet = lpszStr;
TRACE("(%s,%s,%i)\n", debugstr_w(lpszStr), debugstr_w(lpszCat), cchMax);
if (!lpszStr)
{
WARN("Invalid lpszStr would crash under Win32\n");
return NULL;
}
StrCpyNW(lpszStr + lstrlenW(lpszStr), lpszCat, cchMax);
return lpszRet;
}
/*************************************************************************
* _SHStrDupAA [INTERNAL]
*
* Duplicates a ANSI string to ANSI. The destination buffer is allocated.
*/
static HRESULT _SHStrDupAA(LPCSTR src, LPSTR * dest)
{
HRESULT hr;
int len = 0;
if (src) {
len = lstrlenA(src) + 1;
*dest = CoTaskMemAlloc(len);
} else {
*dest = NULL;
}
if (*dest) {
lstrcpynA(*dest,src, len);
hr = S_OK;
} else {
hr = E_OUTOFMEMORY;
}
TRACE("%s->(%p)\n", debugstr_a(src), *dest);
return hr;
}
/*************************************************************************
* SHStrDupA [SHLWAPI.@]
*
* Return a Unicode copy of a string, in memory allocated by CoTaskMemAlloc().
*
* PARAMS
* lpszStr [I] String to copy
* lppszDest [O] Destination for the new string copy
*
* RETURNS
* Success: S_OK. lppszDest contains the new string in Unicode format.
* Failure: E_OUTOFMEMORY, If any arguments are invalid or memory allocation
* fails.
*/
HRESULT WINAPI SHStrDupA(LPCSTR lpszStr, LPWSTR * lppszDest)
{
HRESULT hRet;
int len = 0;
if (lpszStr)
{
len = MultiByteToWideChar(CP_ACP, 0, lpszStr, -1, NULL, 0) * sizeof(WCHAR);
*lppszDest = CoTaskMemAlloc(len);
}
else
*lppszDest = NULL;
if (*lppszDest)
{
MultiByteToWideChar(CP_ACP, 0, lpszStr, -1, *lppszDest, len/sizeof(WCHAR));
hRet = S_OK;
}
else
hRet = E_OUTOFMEMORY;
TRACE("%s->(%p)\n", debugstr_a(lpszStr), *lppszDest);
return hRet;
}
/*************************************************************************
* _SHStrDupAW [INTERNAL]
*
* Duplicates a UNICODE to a ANSI string. The destination buffer is allocated.
*/
static HRESULT _SHStrDupAW(LPCWSTR src, LPSTR * dest)
{
HRESULT hr;
int len = 0;
if (src) {
len = WideCharToMultiByte(CP_ACP, 0, src, -1, NULL, 0, NULL, NULL);
*dest = CoTaskMemAlloc(len);
} else {
*dest = NULL;
}
if (*dest) {
WideCharToMultiByte(CP_ACP, 0, src, -1, *dest, len, NULL, NULL);
hr = S_OK;
} else {
hr = E_OUTOFMEMORY;
}
TRACE("%s->(%p)\n", debugstr_w(src), *dest);
return hr;
}
/*************************************************************************
* SHStrDupW [SHLWAPI.@]
*
* See SHStrDupA.
*/
HRESULT WINAPI SHStrDupW(LPCWSTR src, LPWSTR * dest)
{
HRESULT hr;
int len = 0;
if (src) {
len = (lstrlenW(src) + 1) * sizeof(WCHAR);
*dest = CoTaskMemAlloc(len);
} else {
*dest = NULL;
}
if (*dest) {
memcpy(*dest, src, len);
hr = S_OK;
} else {
hr = E_OUTOFMEMORY;
}
TRACE("%s->(%p)\n", debugstr_w(src), *dest);
return hr;
}
/*************************************************************************
* SHLWAPI_WriteReverseNum
*
* Internal helper for SHLWAPI_WriteTimeClass.
*/
static inline LPWSTR SHLWAPI_WriteReverseNum(LPWSTR lpszOut, DWORD dwNum)
{
*lpszOut-- = '\0';
/* Write a decimal number to a string, backwards */
do
{
DWORD dwNextDigit = dwNum % 10;
*lpszOut-- = '0' + dwNextDigit;
dwNum = (dwNum - dwNextDigit) / 10;
} while (dwNum > 0);
return lpszOut;
}
/*************************************************************************
* SHLWAPI_FormatSignificant
*
* Internal helper for SHLWAPI_WriteTimeClass.
*/
static inline int SHLWAPI_FormatSignificant(LPWSTR lpszNum, int dwDigits)
{
/* Zero non significant digits, return remaining significant digits */
while (*lpszNum)
{
lpszNum++;
if (--dwDigits == 0)
{
while (*lpszNum)
*lpszNum++ = '0';
return 0;
}
}
return dwDigits;
}
/*************************************************************************
* SHLWAPI_WriteTimeClass
*
* Internal helper for StrFromTimeIntervalW.
*/
static int SHLWAPI_WriteTimeClass(LPWSTR lpszOut, DWORD dwValue,
UINT uClassStringId, int iDigits)
{
WCHAR szBuff[64], *szOut = szBuff + 32;
szOut = SHLWAPI_WriteReverseNum(szOut, dwValue);
iDigits = SHLWAPI_FormatSignificant(szOut + 1, iDigits);
*szOut = ' ';
LoadStringW(shlwapi_hInstance, uClassStringId, szBuff + 32, 32);
lstrcatW(lpszOut, szOut);
return iDigits;
}
/*************************************************************************
* StrFromTimeIntervalA [SHLWAPI.@]
*
* Format a millisecond time interval into a string
*
* PARAMS
* lpszStr [O] Output buffer for formatted time interval
* cchMax [I] Size of lpszStr
* dwMS [I] Number of milliseconds
* iDigits [I] Number of digits to print
*
* RETURNS
* The length of the formatted string, or 0 if any parameter is invalid.
*
* NOTES
* This implementation mimics the Win32 behaviour of always writing a leading
* space before the time interval begins.
*
* iDigits is used to provide approximate times if accuracy is not important.
* This number of digits will be written of the first non-zero time class
* (hours/minutes/seconds). If this does not complete the time classification,
* the remaining digits are changed to zeros (i.e. The time is _not_ rounded).
* If there are digits remaining following the writing of a time class, the
* next time class will be written.
*
* For example, given dwMS represents 138 hours,43 minutes and 15 seconds, the
* following will result from the given values of iDigits:
*
*| iDigits 1 2 3 4 5 ...
*| lpszStr "100 hr" "130 hr" "138 hr" "138 hr 40 min" "138 hr 43 min" ...
*/
INT WINAPI StrFromTimeIntervalA(LPSTR lpszStr, UINT cchMax, DWORD dwMS,
int iDigits)
{
INT iRet = 0;
TRACE("(%p,%d,%ld,%d)\n", lpszStr, cchMax, dwMS, iDigits);
if (lpszStr && cchMax)
{
WCHAR szBuff[128];
StrFromTimeIntervalW(szBuff, ARRAY_SIZE(szBuff), dwMS, iDigits);
WideCharToMultiByte(CP_ACP,0,szBuff,-1,lpszStr,cchMax,0,0);
}
return iRet;
}
/*************************************************************************
* StrFromTimeIntervalW [SHLWAPI.@]
*
* See StrFromTimeIntervalA.
*/
INT WINAPI StrFromTimeIntervalW(LPWSTR lpszStr, UINT cchMax, DWORD dwMS,
int iDigits)
{
INT iRet = 0;
TRACE("(%p,%d,%ld,%d)\n", lpszStr, cchMax, dwMS, iDigits);
if (lpszStr && cchMax)
{
WCHAR szCopy[128];
DWORD dwHours, dwMinutes;
if (!iDigits || cchMax == 1)
{
*lpszStr = '\0';
return 0;
}
/* Calculate the time classes */
dwMS = (dwMS + 500) / 1000;
dwHours = dwMS / 3600;
dwMS -= dwHours * 3600;
dwMinutes = dwMS / 60;
dwMS -= dwMinutes * 60;
szCopy[0] = '\0';
if (dwHours)
iDigits = SHLWAPI_WriteTimeClass(szCopy, dwHours, IDS_TIME_INTERVAL_HOURS, iDigits);
if (dwMinutes && iDigits)
iDigits = SHLWAPI_WriteTimeClass(szCopy, dwMinutes, IDS_TIME_INTERVAL_MINUTES, iDigits);
if (iDigits) /* Always write seconds if we have significant digits */
SHLWAPI_WriteTimeClass(szCopy, dwMS, IDS_TIME_INTERVAL_SECONDS, iDigits);
lstrcpynW(lpszStr, szCopy, cchMax);
iRet = lstrlenW(lpszStr);
}
return iRet;
}
/* Structure for formatting byte strings */
typedef struct tagSHLWAPI_BYTEFORMATS
{
LONGLONG dLimit;
double dDivisor;
double dNormaliser;
int nDecimals;
WCHAR wPrefix;
} SHLWAPI_BYTEFORMATS;
/*************************************************************************
* StrFormatByteSizeW [SHLWAPI.@]
*
* Create a string containing an abbreviated byte count of up to 2^63-1.
*
* PARAMS
* llBytes [I] Byte size to format
* lpszDest [I] Destination for formatted string
* cchMax [I] Size of lpszDest
*
* RETURNS
* lpszDest.
*
* NOTES
* There is no StrFormatByteSize64W function, it is called StrFormatByteSizeW().
*/
LPWSTR WINAPI StrFormatByteSizeW(LONGLONG llBytes, LPWSTR lpszDest, UINT cchMax)
{
HRESULT hr;
TRACE("(0x%s,%p,%d)\n", wine_dbgstr_longlong(llBytes), lpszDest, cchMax);
if (!lpszDest || !cchMax)
return lpszDest;
hr = StrFormatByteSizeEx(llBytes, SFBS_FLAGS_TRUNCATE_UNDISPLAYED_DECIMAL_DIGITS,
lpszDest, cchMax);
if (FAILED(hr))
return NULL;
return lpszDest;
}
/*************************************************************************
* StrFormatByteSizeEx [SHLWAPI.@]
*
*/
HRESULT WINAPI StrFormatByteSizeEx(LONGLONG llBytes, SFBS_FLAGS flags, LPWSTR lpszDest,
UINT cchMax)
{
#define KB ((ULONGLONG)1024)
#define MB (KB*KB)
#define GB (KB*KB*KB)
#define TB (KB*KB*KB*KB)
#define PB (KB*KB*KB*KB*KB)
static const SHLWAPI_BYTEFORMATS bfFormats[] =
{
{ 10*KB, 10.24, 100.0, 2, 'K' }, /* 10 KB */
{ 100*KB, 102.4, 10.0, 1, 'K' }, /* 100 KB */
{ 1000*KB, 1024.0, 1.0, 0, 'K' }, /* 1000 KB */
{ 10*MB, 10485.76, 100.0, 2, 'M' }, /* 10 MB */
{ 100*MB, 104857.6, 10.0, 1, 'M' }, /* 100 MB */
{ 1000*MB, 1048576.0, 1.0, 0, 'M' }, /* 1000 MB */
{ 10*GB, 10737418.24, 100.0, 2, 'G' }, /* 10 GB */
{ 100*GB, 107374182.4, 10.0, 1, 'G' }, /* 100 GB */
{ 1000*GB, 1073741824.0, 1.0, 0, 'G' }, /* 1000 GB */
{ 10*TB, 10485.76, 100.0, 2, 'T' }, /* 10 TB */
{ 100*TB, 104857.6, 10.0, 1, 'T' }, /* 100 TB */
{ 1000*TB, 1048576.0, 1.0, 0, 'T' }, /* 1000 TB */
{ 10*PB, 10737418.24, 100.00, 2, 'P' }, /* 10 PB */
{ 100*PB, 107374182.4, 10.00, 1, 'P' }, /* 100 PB */
{ 1000*PB, 1073741824.0, 1.00, 0, 'P' }, /* 1000 PB */
{ 0, 10995116277.76, 100.00, 2, 'E' } /* EB's, catch all */
};
WCHAR wszAdd[] = {' ','?','B',0};
double dBytes;
UINT i = 0;
TRACE("(0x%s,%d,%p,%d)\n", wine_dbgstr_longlong(llBytes), flags, lpszDest, cchMax);
if (!cchMax)
return E_INVALIDARG;
if (llBytes < 1024) /* 1K */
{
WCHAR wszBytesFormat[64];
LoadStringW(shlwapi_hInstance, IDS_BYTES_FORMAT, wszBytesFormat, 64);
swprintf(lpszDest, cchMax, wszBytesFormat, (int)llBytes);
return S_OK;
}
/* Note that if this loop completes without finding a match, i will be
* pointing at the last entry, which is a catch all for > 1000 PB
*/
while (i < ARRAY_SIZE(bfFormats) - 1)
{
if (llBytes < bfFormats[i].dLimit)
break;
i++;
}
/* Above 1 TB we encounter problems with FP accuracy. So for amounts above
* this number we integer shift down by 1 MB first. The table above has
* the divisors scaled down from the '< 10 TB' entry onwards, to account
* for this. We also add a small fudge factor to get the correct result for
* counts that lie exactly on a 1024 byte boundary.
*/
if (i > 8)
dBytes = (double)(llBytes >> 20) + 0.001; /* Scale down by 1 MB */
else
dBytes = (double)llBytes + 0.00001;
switch(flags)
{
case SFBS_FLAGS_ROUND_TO_NEAREST_DISPLAYED_DIGIT:
dBytes = round(dBytes / bfFormats[i].dDivisor) / bfFormats[i].dNormaliser;
break;
case SFBS_FLAGS_TRUNCATE_UNDISPLAYED_DECIMAL_DIGITS:
dBytes = floor(dBytes / bfFormats[i].dDivisor) / bfFormats[i].dNormaliser;
break;
default:
return E_INVALIDARG;
}
if (!FormatDouble(dBytes, bfFormats[i].nDecimals, lpszDest, cchMax))
return E_FAIL;
wszAdd[1] = bfFormats[i].wPrefix;
StrCatBuffW(lpszDest, wszAdd, cchMax);
return S_OK;
}
/*************************************************************************
* StrFormatByteSize64A [SHLWAPI.@]
*
* See StrFormatByteSizeW.
*/
LPSTR WINAPI StrFormatByteSize64A(LONGLONG llBytes, LPSTR lpszDest, UINT cchMax)
{
WCHAR wszBuff[32];
StrFormatByteSizeW(llBytes, wszBuff, ARRAY_SIZE(wszBuff));
if (lpszDest)
WideCharToMultiByte(CP_ACP, 0, wszBuff, -1, lpszDest, cchMax, 0, 0);
return lpszDest;
}
/*************************************************************************
* StrFormatByteSizeA [SHLWAPI.@]
*
* Create a string containing an abbreviated byte count of up to 2^31-1.
*
* PARAMS
* dwBytes [I] Byte size to format
* lpszDest [I] Destination for formatted string
* cchMax [I] Size of lpszDest
*
* RETURNS
* lpszDest.
*
* NOTES
* The ANSI and Unicode versions of this function accept a different
* integer type for dwBytes. See StrFormatByteSize64A().
*/
LPSTR WINAPI StrFormatByteSizeA(DWORD dwBytes, LPSTR lpszDest, UINT cchMax)
{
TRACE("(%ld,%p,%d)\n", dwBytes, lpszDest, cchMax);
return StrFormatByteSize64A(dwBytes, lpszDest, cchMax);
}
/*************************************************************************
* @ [SHLWAPI.203]
*
* Remove a single non-trailing ampersand ('&') from a string.
*
* PARAMS
* lpszStr [I/O] String to remove ampersand from.
*
* RETURNS
* The character after the first ampersand in lpszStr, or the first character
* in lpszStr if there is no ampersand in the string.
*/
char WINAPI SHStripMneumonicA(LPCSTR lpszStr)
{
LPSTR lpszIter, lpszTmp;
char ch;
TRACE("(%s)\n", debugstr_a(lpszStr));
ch = *lpszStr;
if ((lpszIter = StrChrA(lpszStr, '&')))
{
lpszTmp = CharNextA(lpszIter);
if (*lpszTmp)
{
if (*lpszTmp != '&')
ch = *lpszTmp;
memmove( lpszIter, lpszTmp, strlen(lpszTmp) + 1 );
}
}
return ch;
}
/*************************************************************************
* @ [SHLWAPI.225]
*
* Unicode version of SHStripMneumonicA.
*/
WCHAR WINAPI SHStripMneumonicW(LPCWSTR lpszStr)
{
LPWSTR lpszIter, lpszTmp;
WCHAR ch;
TRACE("(%s)\n", debugstr_w(lpszStr));
ch = *lpszStr;
if ((lpszIter = StrChrW(lpszStr, '&')))
{
lpszTmp = lpszIter + 1;
if (*lpszTmp)
{
if (*lpszTmp != '&')
ch = *lpszTmp;
memmove( lpszIter, lpszTmp, (lstrlenW(lpszTmp) + 1) * sizeof(WCHAR) );
}
}
return ch;
}
/*************************************************************************
* @ [SHLWAPI.216]
*
* Convert an ANSI string to Unicode.
*
* PARAMS
* dwCp [I] Code page for the conversion
* lpSrcStr [I] Source ANSI string to convert
* lpDstStr [O] Destination for converted Unicode string
* iLen [I] Length of lpDstStr
*
* RETURNS
* The return value of the MultiByteToWideChar() function called on lpSrcStr.
*/
DWORD WINAPI SHAnsiToUnicodeCP(DWORD dwCp, LPCSTR lpSrcStr, LPWSTR lpDstStr, int iLen)
{
DWORD dwRet;
dwRet = MultiByteToWideChar(dwCp, 0, lpSrcStr, -1, lpDstStr, iLen);
TRACE("%s->%s,ret=%ld\n", debugstr_a(lpSrcStr), debugstr_w(lpDstStr), dwRet);
return dwRet;
}
/*************************************************************************
* @ [SHLWAPI.215]
*
* Convert an ANSI string to Unicode.
*
* PARAMS
* lpSrcStr [I] Source ANSI string to convert
* lpDstStr [O] Destination for converted Unicode string
* iLen [I] Length of lpDstStr
*
* RETURNS
* The return value of the MultiByteToWideChar() function called on lpSrcStr.
*
* NOTES
* This function simply calls SHAnsiToUnicodeCP with code page CP_ACP.
*/
DWORD WINAPI SHAnsiToUnicode(LPCSTR lpSrcStr, LPWSTR lpDstStr, int iLen)
{
return SHAnsiToUnicodeCP(CP_ACP, lpSrcStr, lpDstStr, iLen);
}
/*************************************************************************
* @ [SHLWAPI.218]
*
* Convert a Unicode string to ANSI.
*
* PARAMS
* CodePage [I] Code page to use for the conversion
* lpSrcStr [I] Source Unicode string to convert
* lpDstStr [O] Destination for converted ANSI string
* dstlen [I] Length of buffer at lpDstStr
*
* RETURNS
* Success: The length in bytes of the result at lpDstStr (including the terminator)
* Failure: When using CP_UTF8, CP_UTF7 or 0xc350 as codePage, 0 is returned and
* the result is not nul-terminated.
* When using a different codepage, the length in bytes of the truncated
* result at lpDstStr (including the terminator) is returned and
* lpDstStr is always nul-terminated.
*
*/
DWORD WINAPI SHUnicodeToAnsiCP(UINT CodePage, LPCWSTR lpSrcStr, LPSTR lpDstStr, int dstlen)
{
static const WCHAR emptyW[] = { '\0' };
int len , reqLen;
LPSTR mem;
if (!lpDstStr || !dstlen)
return 0;
if (!lpSrcStr)
lpSrcStr = emptyW;
*lpDstStr = '\0';
len = lstrlenW(lpSrcStr) + 1;
switch (CodePage)
{
case CP_WINUNICODE:
CodePage = CP_UTF8; /* Fall through... */
case 0x0000C350: /* FIXME: CP_ #define */
case CP_UTF7:
case CP_UTF8:
{
DWORD dwMode = 0;
INT lenW = len - 1;
INT needed = dstlen - 1;
HRESULT hr;
/* try the user supplied buffer first */
hr = ConvertINetUnicodeToMultiByte(&dwMode, CodePage, lpSrcStr, &lenW, lpDstStr, &needed);
if (hr == S_OK)
{
lpDstStr[needed] = '\0';
return needed + 1;
}
/* user buffer too small. exclude termination and copy as much as possible */
lenW = len;
hr = ConvertINetUnicodeToMultiByte(&dwMode, CodePage, lpSrcStr, &lenW, NULL, &needed);
needed++;
mem = malloc(needed);
if (!mem)
return 0;
hr = ConvertINetUnicodeToMultiByte(&dwMode, CodePage, lpSrcStr, &len, mem, &needed);
if (hr == S_OK)
{
reqLen = SHTruncateString(mem, dstlen);
if (reqLen > 0) memcpy(lpDstStr, mem, reqLen-1);
}
free(mem);
return 0;
}
default:
break;
}
/* try the user supplied buffer first */
reqLen = WideCharToMultiByte(CodePage, 0, lpSrcStr, len, lpDstStr, dstlen, NULL, NULL);
if (!reqLen && GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
reqLen = WideCharToMultiByte(CodePage, 0, lpSrcStr, len, NULL, 0, NULL, NULL);
if (reqLen)
{
mem = malloc(reqLen);
if (mem)
{
WideCharToMultiByte(CodePage, 0, lpSrcStr, len, mem, reqLen, NULL, NULL);
reqLen = SHTruncateString(mem, dstlen -1);
reqLen++;
lstrcpynA(lpDstStr, mem, reqLen);
free(mem);
lpDstStr[reqLen-1] = '\0';
}
}
}
return reqLen;
}
/*************************************************************************
* @ [SHLWAPI.217]
*
* Convert a Unicode string to ANSI.
*
* PARAMS
* lpSrcStr [I] Source Unicode string to convert
* lpDstStr [O] Destination for converted ANSI string
* iLen [O] Length of lpDstStr in characters
*
* RETURNS
* See SHUnicodeToAnsiCP
* NOTES
* This function simply calls SHUnicodeToAnsiCP() with CodePage = CP_ACP.
*/
INT WINAPI SHUnicodeToAnsi(LPCWSTR lpSrcStr, LPSTR lpDstStr, INT iLen)
{
return SHUnicodeToAnsiCP(CP_ACP, lpSrcStr, lpDstStr, iLen);
}
/*************************************************************************
* @ [SHLWAPI.364]
*
* Determine if an ANSI string converts to Unicode and back identically.
*
* PARAMS
* lpSrcStr [I] Source Unicode string to convert
* lpDst [O] Destination for resulting ANSI string
* iLen [I] Length of lpDst in characters
*
* RETURNS
* TRUE, since ANSI strings always convert identically.
*/
BOOL WINAPI DoesStringRoundTripA(LPCSTR lpSrcStr, LPSTR lpDst, INT iLen)
{
lstrcpynA(lpDst, lpSrcStr, iLen);
return TRUE;
}
/*************************************************************************
* @ [SHLWAPI.365]
*
* Determine if a Unicode string converts to ANSI and back identically.
*
* PARAMS
* lpSrcStr [I] Source Unicode string to convert
* lpDst [O] Destination for resulting ANSI string
* iLen [I] Length of lpDst in characters
*
* RETURNS
* TRUE, if lpSrcStr converts to ANSI and back identically,
* FALSE otherwise.
*/
BOOL WINAPI DoesStringRoundTripW(LPCWSTR lpSrcStr, LPSTR lpDst, INT iLen)
{
WCHAR szBuff[MAX_PATH];
SHUnicodeToAnsi(lpSrcStr, lpDst, iLen);
SHAnsiToUnicode(lpDst, szBuff, MAX_PATH);
return !wcscmp(lpSrcStr, szBuff);
}
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