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StrRetToStrN returns BOOL and shouldn't crash on NULL dest.

This commit is contained in:
Jon Griffiths 2004-02-10 02:18:50 +00:00 committed by Alexandre Julliard
parent 2eee76703d
commit 52cde9b386
3 changed files with 28 additions and 44 deletions
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50
dlls/shell32/shellstring.c
View File

@ -44,16 +44,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(shell);
/************************* STRRET functions ****************************/
/*
* ***** NOTE *****
* These routines are identical to StrRetToBuf[AW] in dlls/shlwapi/string.c.
* They were duplicated here because not every version of Shlwapi.dll exports
* StrRetToBuf[AW]. If you change one routine, change them both. YOU HAVE BEEN
* WARNED.
* ***** NOTE *****
*/
HRESULT WINAPI StrRetToStrNA (LPVOID dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
BOOL WINAPI StrRetToStrNA(LPSTR dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
{
TRACE("dest=%p len=0x%lx strret=%p(%s) pidl=%p\n",
dest,len,src,
@ -62,33 +53,36 @@ HRESULT WINAPI StrRetToStrNA (LPVOID dest, DWORD len, LPSTRRET src, const ITEMID
(src->uType == STRRET_OFFSET) ? "STRRET_OFFSET" : "STRRET_???",
pidl);
if (!dest)
return FALSE;
switch (src->uType)
{
case STRRET_WSTR:
WideCharToMultiByte(CP_ACP, 0, src->u.pOleStr, -1, (LPSTR)dest, len, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, src->u.pOleStr, -1, dest, len, NULL, NULL);
CoTaskMemFree(src->u.pOleStr);
break;
case STRRET_CSTR:
lstrcpynA((LPSTR)dest, src->u.cStr, len);
lstrcpynA(dest, src->u.cStr, len);
break;
case STRRET_OFFSET:
lstrcpynA((LPSTR)dest, ((LPCSTR)&pidl->mkid)+src->u.uOffset, len);
lstrcpynA(dest, ((LPCSTR)&pidl->mkid)+src->u.uOffset, len);
break;
default:
FIXME("unknown type!\n");
if (len) *(LPSTR)dest = '\0';
return(FALSE);
if (len) *dest = '\0';
return FALSE;
}
TRACE("-- %s\n", debugstr_a(dest) );
return S_OK;
return TRUE;
}
/************************************************************************/
HRESULT WINAPI StrRetToStrNW (LPVOID dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
BOOL WINAPI StrRetToStrNW(LPWSTR dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
{
TRACE("dest=%p len=0x%lx strret=%p(%s) pidl=%p\n",
dest,len,src,
@ -97,29 +91,32 @@ HRESULT WINAPI StrRetToStrNW (LPVOID dest, DWORD len, LPSTRRET src, const ITEMID
(src->uType == STRRET_OFFSET) ? "STRRET_OFFSET" : "STRRET_???",
pidl);
if (!dest)
return FALSE;
switch (src->uType)
{
case STRRET_WSTR:
lstrcpynW((LPWSTR)dest, src->u.pOleStr, len);
lstrcpynW(dest, src->u.pOleStr, len);
CoTaskMemFree(src->u.pOleStr);
break;
case STRRET_CSTR:
if (!MultiByteToWideChar( CP_ACP, 0, src->u.cStr, -1, dest, len ) && len)
((LPWSTR)dest)[len-1] = 0;
dest[len-1] = 0;
break;
case STRRET_OFFSET:
if (!MultiByteToWideChar( CP_ACP, 0, ((LPCSTR)&pidl->mkid)+src->u.uOffset, -1, dest, len ) && len)
((LPWSTR)dest)[len-1] = 0;
dest[len-1] = 0;
break;
default:
FIXME("unknown type!\n");
if (len) *(LPWSTR)dest = '\0';
return(FALSE);
if (len) *dest = '\0';
return FALSE;
}
return S_OK;
return TRUE;
}
@ -131,11 +128,12 @@ HRESULT WINAPI StrRetToStrNW (LPVOID dest, DWORD len, LPSTRRET src, const ITEMID
* NOTES
* the pidl is for STRRET OFFSET
*/
HRESULT WINAPI StrRetToStrNAW (LPVOID dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
BOOL WINAPI StrRetToStrNAW(LPVOID dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
{
if(SHELL_OsIsUnicode())
return StrRetToStrNW (dest, len, src, pidl);
return StrRetToStrNA (dest, len, src, pidl);
return StrRetToStrNW(dest, len, src, pidl);
else
return StrRetToStrNA(dest, len, src, pidl);
}
/************************* OLESTR functions ****************************/

2
dlls/shell32/shlview.c
View File

@ -1201,7 +1201,7 @@ static LRESULT ShellView_OnNotify(IShellViewImpl * This, UINT CtlID, LPNMHDR lpn
}
else /* LVN_GETDISPINFOW */
{
StrRetToStrNW( lpdi->item.pszText, lpdi->item.cchTextMax, &sd.str, NULL);
StrRetToStrNW( ((NMLVDISPINFOW *)lpdi)->item.pszText, lpdi->item.cchTextMax, &sd.str, NULL);
TRACE("-- text=%s\n",debugstr_w((WCHAR*)(lpdi->item.pszText)));
}
}

20
dlls/shell32/undocshell.h
View File

@ -119,23 +119,9 @@ LPITEMIDLIST WINAPI ILCreateFromPathAW(LPCVOID path);
/*
string functions
*/
HRESULT WINAPI StrRetToStrNA (
LPVOID dest,
DWORD len,
LPSTRRET src,
const ITEMIDLIST *pidl);
HRESULT WINAPI StrRetToStrNW (
LPVOID dest,
DWORD len,
LPSTRRET src,
const ITEMIDLIST *pidl);
HRESULT WINAPI StrRetToStrNAW (
LPVOID dest,
DWORD len,
LPSTRRET src,
const ITEMIDLIST *pidl);
BOOL WINAPI StrRetToStrNA(LPSTR,DWORD,LPSTRRET,const ITEMIDLIST*);
BOOL WINAPI StrRetToStrNW(LPWSTR,DWORD,LPSTRRET,const ITEMIDLIST*);
BOOL WINAPI StrRetToStrNAW(LPVOID,DWORD,LPSTRRET,const ITEMIDLIST*);
/****************************************************************************