594 lines
21 KiB
C
594 lines
21 KiB
C
/*
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* FormatMessage implementation
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*
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* Copyright 1996 Marcus Meissner
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "winuser.h"
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#include "winnls.h"
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#include "wine/unicode.h"
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#include "heap.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(resource);
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/* Messages...used by FormatMessage32* (KERNEL32.something)
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*
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* They can be specified either directly or using a message ID and
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* loading them from the resource.
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*
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* The resourcedata has following format:
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* start:
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* 0: DWORD nrofentries
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* nrofentries * subentry:
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* 0: DWORD firstentry
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* 4: DWORD lastentry
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* 8: DWORD offset from start to the stringentries
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*
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* (lastentry-firstentry) * stringentry:
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* 0: WORD len (0 marks end) [ includes the 4 byte header length ]
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* 2: WORD flags
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* 4: CHAR[len-4]
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* (stringentry i of a subentry refers to the ID 'firstentry+i')
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*
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* Yes, ANSI strings in win32 resources. Go figure.
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*/
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/**********************************************************************
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* load_messageA (internal)
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*/
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static INT load_messageA( HMODULE instance, UINT id, WORD lang,
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LPSTR buffer, INT buflen )
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{
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HGLOBAL hmem;
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HRSRC hrsrc;
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PMESSAGE_RESOURCE_DATA mrd;
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PMESSAGE_RESOURCE_BLOCK mrb;
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PMESSAGE_RESOURCE_ENTRY mre;
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int i,slen;
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TRACE("instance = %08lx, id = %08lx, buffer = %p, length = %ld\n", (DWORD)instance, (DWORD)id, buffer, (DWORD)buflen);
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/*FIXME: I am not sure about the '1' ... But I've only seen those entries*/
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hrsrc = FindResourceExW(instance,RT_MESSAGETABLEW,(LPWSTR)1,lang);
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if (!hrsrc) return 0;
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hmem = LoadResource( instance, hrsrc );
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if (!hmem) return 0;
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mrd = (PMESSAGE_RESOURCE_DATA)LockResource(hmem);
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mre = NULL;
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mrb = &(mrd->Blocks[0]);
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for (i=mrd->NumberOfBlocks;i--;) {
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if ((id>=mrb->LowId) && (id<=mrb->HighId)) {
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mre = (PMESSAGE_RESOURCE_ENTRY)(((char*)mrd)+mrb->OffsetToEntries);
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id -= mrb->LowId;
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break;
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}
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mrb++;
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}
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if (!mre)
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return 0;
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for (i=id;i--;) {
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if (!mre->Length)
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return 0;
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mre = (PMESSAGE_RESOURCE_ENTRY)(((char*)mre)+mre->Length);
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}
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slen=mre->Length;
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TRACE(" - strlen=%d\n",slen);
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i = min(buflen - 1, slen);
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if (buffer == NULL)
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return slen;
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if (i>0) {
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if (mre->Flags & MESSAGE_RESOURCE_UNICODE)
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WideCharToMultiByte( CP_ACP, 0, (LPWSTR)mre->Text, -1, buffer, i, NULL, NULL );
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else
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lstrcpynA(buffer, (LPSTR)mre->Text, i);
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buffer[i]=0;
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} else {
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if (buflen>1) {
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buffer[0]=0;
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return 0;
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}
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}
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if (buffer)
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TRACE("'%s' copied !\n", buffer);
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return i;
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}
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#if 0 /* FIXME */
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/**********************************************************************
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* load_messageW (internal)
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*/
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static INT load_messageW( HMODULE instance, UINT id, WORD lang,
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LPWSTR buffer, INT buflen )
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{
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INT retval;
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LPSTR buffer2 = NULL;
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if (buffer && buflen)
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buffer2 = HeapAlloc( GetProcessHeap(), 0, buflen );
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retval = load_messageA(instance,id,lang,buffer2,buflen);
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if (buffer)
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{
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if (retval) {
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lstrcpynAtoW( buffer, buffer2, buflen );
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retval = strlenW( buffer );
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}
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HeapFree( GetProcessHeap(), 0, buffer2 );
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}
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return retval;
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}
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#endif
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/***********************************************************************
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* FormatMessageA (KERNEL32.@)
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* FIXME: missing wrap,
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*/
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DWORD WINAPI FormatMessageA(
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DWORD dwFlags,
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LPCVOID lpSource,
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DWORD dwMessageId,
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DWORD dwLanguageId,
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LPSTR lpBuffer,
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DWORD nSize,
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va_list* _args )
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{
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LPDWORD args=(LPDWORD)_args;
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#if defined(__i386__) || defined(__sparc__)
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/* This implementation is completely dependant on the format of the va_list on x86 CPUs */
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LPSTR target,t;
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DWORD talloced;
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LPSTR from,f;
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DWORD width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
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BOOL eos = FALSE;
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INT bufsize;
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HMODULE hmodule = (HMODULE)lpSource;
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CHAR ch;
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TRACE("(0x%lx,%p,%ld,0x%lx,%p,%ld,%p)\n",
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dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
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if ((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
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&& (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)) return 0;
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if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
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&&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
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|| (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
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if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
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FIXME("line wrapping (%lu) not supported.\n", width);
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from = NULL;
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if (dwFlags & FORMAT_MESSAGE_FROM_STRING)
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{
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from = HeapAlloc( GetProcessHeap(), 0, strlen((LPSTR)lpSource)+1 );
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strcpy( from, (LPSTR)lpSource );
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}
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else {
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if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
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hmodule = GetModuleHandleA("kernel32");
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bufsize=load_messageA(hmodule,dwMessageId,dwLanguageId,NULL,100);
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if (!bufsize) {
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if (dwLanguageId) {
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SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
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return 0;
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}
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bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_NEUTRAL),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),NULL,100);
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if (!bufsize) {
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SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
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return 0;
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}
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}
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from = HeapAlloc( GetProcessHeap(), 0, bufsize + 1 );
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load_messageA(hmodule,dwMessageId,dwLanguageId,from,bufsize+1);
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}
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target = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100);
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t = target;
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talloced= 100;
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#define ADD_TO_T(c) do { \
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*t++=c;\
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if (t-target == talloced) {\
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target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
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t = target+talloced;\
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talloced*=2;\
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}\
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} while (0)
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if (from) {
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f=from;
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if (dwFlags & FORMAT_MESSAGE_IGNORE_INSERTS) {
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while (*f && !eos)
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ADD_TO_T(*f++);
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}
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else {
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while (*f && !eos) {
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if (*f=='%') {
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int insertnr;
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char *fmtstr,*x,*lastf;
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DWORD *argliststart;
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fmtstr = NULL;
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lastf = f;
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f++;
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if (!*f) {
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ADD_TO_T('%');
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continue;
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}
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switch (*f) {
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case '1':case '2':case '3':case '4':case '5':
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case '6':case '7':case '8':case '9':
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insertnr=*f-'0';
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switch (f[1]) {
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case '0':case '1':case '2':case '3':
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case '4':case '5':case '6':case '7':
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case '8':case '9':
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f++;
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insertnr=insertnr*10+*f-'0';
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f++;
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break;
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default:
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f++;
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break;
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}
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if (*f=='!') {
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f++;
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if (NULL!=(x=strchr(f,'!'))) {
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*x='\0';
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fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
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sprintf(fmtstr,"%%%s",f);
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f=x+1;
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} else {
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fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
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sprintf(fmtstr,"%%%s",f);
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f+=strlen(f); /*at \0*/
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}
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} else {
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if(!args) break;
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fmtstr = HeapAlloc(GetProcessHeap(),0,3);
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strcpy( fmtstr, "%s" );
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}
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if (args) {
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int ret;
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int sz;
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LPSTR b;
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if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
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argliststart=args+insertnr-1;
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else
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argliststart=(*(DWORD**)args)+insertnr-1;
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/* FIXME: precision and width components are not handled correctly */
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if (strcmp(fmtstr, "%ls") == 0) {
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sz = WideCharToMultiByte( CP_ACP, 0, *(WCHAR**)argliststart, -1, NULL, 0, NULL, NULL);
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b = HeapAlloc(GetProcessHeap(), 0, sz);
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WideCharToMultiByte( CP_ACP, 0, *(WCHAR**)argliststart, -1, b, sz, NULL, NULL);
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} else {
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b = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sz = 100);
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/* CMF - This makes a BIG assumption about va_list */
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TRACE("A BIG assumption\n");
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while ((ret = vsnprintf(b, sz, fmtstr, (va_list) argliststart) < 0) || (ret >= sz)) {
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sz = (ret == -1 ? sz + 100 : ret + 1);
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b = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, b, sz);
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}
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}
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for (x=b; *x; x++) ADD_TO_T(*x);
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HeapFree(GetProcessHeap(),0,b);
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} else {
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/* NULL args - copy formatstr
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* (probably wrong)
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*/
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while ((lastf<f)&&(*lastf)) {
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ADD_TO_T(*lastf++);
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}
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}
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HeapFree(GetProcessHeap(),0,fmtstr);
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break;
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case 'n':
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ADD_TO_T('\r');
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ADD_TO_T('\n');
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f++;
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break;
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case '0':
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eos = TRUE;
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f++;
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break;
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default:
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ADD_TO_T(*f++);
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break;
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}
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} else {
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ch = *f;
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f++;
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if (ch == '\r') {
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if (*f == '\n')
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f++;
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ADD_TO_T(' ');
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} else {
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if (ch == '\n')
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{
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ADD_TO_T('\r');
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ADD_TO_T('\n');
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}
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else
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ADD_TO_T(ch);
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}
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}
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}
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}
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*t='\0';
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}
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talloced = strlen(target)+1;
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if (nSize && talloced<nSize) {
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target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
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}
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TRACE("-- %s\n",debugstr_a(target));
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if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
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*((LPVOID*)lpBuffer) = (LPVOID)LocalAlloc(GMEM_ZEROINIT,max(nSize, talloced));
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memcpy(*(LPSTR*)lpBuffer,target,talloced);
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} else {
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lstrcpynA(lpBuffer,target,nSize);
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}
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HeapFree(GetProcessHeap(),0,target);
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if (from) HeapFree(GetProcessHeap(),0,from);
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TRACE("-- returning %d\n", (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ? strlen(*(LPSTR*)lpBuffer):strlen(lpBuffer));
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return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
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strlen(*(LPSTR*)lpBuffer):
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strlen(lpBuffer);
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#else
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return 0;
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#endif /* __i386__ */
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}
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#undef ADD_TO_T
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/***********************************************************************
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* FormatMessageW (KERNEL32.@)
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*/
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DWORD WINAPI FormatMessageW(
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DWORD dwFlags,
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LPCVOID lpSource,
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DWORD dwMessageId,
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DWORD dwLanguageId,
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LPWSTR lpBuffer,
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DWORD nSize,
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va_list* _args )
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{
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LPDWORD args=(LPDWORD)_args;
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#if defined(__i386__) || defined(__sparc__)
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/* This implementation is completely dependant on the format of the va_list on x86 CPUs */
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LPSTR target,t;
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DWORD talloced;
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LPSTR from,f;
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DWORD width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
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BOOL eos = FALSE;
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INT bufsize;
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HMODULE hmodule = (HMODULE)lpSource;
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CHAR ch;
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TRACE("(0x%lx,%p,%ld,0x%lx,%p,%ld,%p)\n",
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dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
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if ((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
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&& (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)) return 0;
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if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
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&&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
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|| (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
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if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
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FIXME("line wrapping not supported.\n");
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from = NULL;
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if (dwFlags & FORMAT_MESSAGE_FROM_STRING) {
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from = HEAP_strdupWtoA(GetProcessHeap(),0,(LPWSTR)lpSource);
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}
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else {
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if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
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hmodule = GetModuleHandleA("kernel32");
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bufsize=load_messageA(hmodule,dwMessageId,dwLanguageId,NULL,100);
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if (!bufsize) {
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if (dwLanguageId) {
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SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
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return 0;
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}
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bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_NEUTRAL),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
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if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
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MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),NULL,100);
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if (!bufsize) {
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SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
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return 0;
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}
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}
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from = HeapAlloc( GetProcessHeap(), 0, bufsize + 1 );
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load_messageA(hmodule,dwMessageId,dwLanguageId,from,bufsize+1);
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}
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target = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100 );
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t = target;
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talloced= 100;
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#define ADD_TO_T(c) do {\
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*t++=c;\
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if (t-target == talloced) {\
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target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
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t = target+talloced;\
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talloced*=2;\
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} \
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} while (0)
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if (from) {
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f=from;
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if (dwFlags & FORMAT_MESSAGE_IGNORE_INSERTS) {
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while (*f && !eos)
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ADD_TO_T(*f++);
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}
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else {
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while (*f && !eos) {
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if (*f=='%') {
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int insertnr;
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char *fmtstr,*sprintfbuf,*x;
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DWORD *argliststart;
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fmtstr = NULL;
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f++;
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if (!*f) {
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ADD_TO_T('%');
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continue;
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}
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switch (*f) {
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case '1':case '2':case '3':case '4':case '5':
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case '6':case '7':case '8':case '9':
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insertnr=*f-'0';
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switch (f[1]) {
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case '0':case '1':case '2':case '3':
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case '4':case '5':case '6':case '7':
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case '8':case '9':
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f++;
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insertnr=insertnr*10+*f-'0';
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f++;
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break;
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default:
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f++;
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break;
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}
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if (*f=='!') {
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f++;
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if (NULL!=(x=strchr(f,'!'))) {
|
|
*x='\0';
|
|
fmtstr=HeapAlloc( GetProcessHeap(), 0, strlen(f)+2);
|
|
sprintf(fmtstr,"%%%s",f);
|
|
f=x+1;
|
|
} else {
|
|
fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f));
|
|
sprintf(fmtstr,"%%%s",f);
|
|
f+=strlen(f); /*at \0*/
|
|
}
|
|
} else {
|
|
if(!args) break;
|
|
fmtstr = HeapAlloc( GetProcessHeap(),0,3);
|
|
strcpy( fmtstr, "%s" );
|
|
}
|
|
if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
|
|
argliststart=args+insertnr-1;
|
|
else
|
|
argliststart=(*(DWORD**)args)+insertnr-1;
|
|
|
|
if (fmtstr[strlen(fmtstr)-1]=='s' && argliststart[0]) {
|
|
DWORD xarr[3];
|
|
|
|
xarr[0]=(DWORD)HEAP_strdupWtoA(GetProcessHeap(),0,(LPWSTR)(*(argliststart+0)));
|
|
/* possible invalid pointers */
|
|
xarr[1]=*(argliststart+1);
|
|
xarr[2]=*(argliststart+2);
|
|
sprintfbuf=HeapAlloc(GetProcessHeap(),0,strlenW((LPWSTR)argliststart[0])*2+1);
|
|
|
|
/* CMF - This makes a BIG assumption about va_list */
|
|
vsprintf(sprintfbuf, fmtstr, (va_list) xarr);
|
|
} else {
|
|
sprintfbuf=HeapAlloc(GetProcessHeap(),0,100);
|
|
|
|
/* CMF - This makes a BIG assumption about va_list */
|
|
vsprintf(sprintfbuf, fmtstr, (va_list) argliststart);
|
|
}
|
|
x=sprintfbuf;
|
|
while (*x) {
|
|
ADD_TO_T(*x++);
|
|
}
|
|
HeapFree(GetProcessHeap(),0,sprintfbuf);
|
|
HeapFree(GetProcessHeap(),0,fmtstr);
|
|
break;
|
|
case 'n':
|
|
ADD_TO_T('\r');
|
|
ADD_TO_T('\n');
|
|
f++;
|
|
break;
|
|
case '0':
|
|
eos = TRUE;
|
|
f++;
|
|
break;
|
|
default:
|
|
ADD_TO_T(*f++);
|
|
break;
|
|
}
|
|
} else {
|
|
ch = *f;
|
|
f++;
|
|
if (ch == '\r') {
|
|
if (*f == '\n')
|
|
f++;
|
|
ADD_TO_T(' ');
|
|
} else {
|
|
if (ch == '\n')
|
|
{
|
|
ADD_TO_T('\r');
|
|
ADD_TO_T('\n');
|
|
}
|
|
else
|
|
ADD_TO_T(ch);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
*t='\0';
|
|
}
|
|
talloced = strlen(target)+1;
|
|
if (nSize && talloced<nSize)
|
|
target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
|
|
if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
|
|
/* nSize is the MINIMUM size */
|
|
DWORD len = MultiByteToWideChar( CP_ACP, 0, target, -1, NULL, 0 );
|
|
*((LPVOID*)lpBuffer) = (LPVOID)LocalAlloc(GMEM_ZEROINIT,len*sizeof(WCHAR));
|
|
MultiByteToWideChar( CP_ACP, 0, target, -1, *(LPWSTR*)lpBuffer, len );
|
|
}
|
|
else
|
|
{
|
|
if (nSize > 0 && !MultiByteToWideChar( CP_ACP, 0, target, -1, lpBuffer, nSize ))
|
|
lpBuffer[nSize-1] = 0;
|
|
}
|
|
HeapFree(GetProcessHeap(),0,target);
|
|
if (from) HeapFree(GetProcessHeap(),0,from);
|
|
return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
|
|
strlenW(*(LPWSTR*)lpBuffer):
|
|
strlenW(lpBuffer);
|
|
#else
|
|
return 0;
|
|
#endif /* __i386__ */
|
|
}
|
|
#undef ADD_TO_T
|