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rundll32 requires a window for some functions to work, so create one.

This commit is contained in:
Mike McCormack 2003-07-22 00:59:56 +00:00 committed by Alexandre Julliard
parent a3989b1a55
commit 0ab73312c8
2 changed files with 228 additions and 72 deletions
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2
programs/rundll32/Makefile.in
View File

@ -4,7 +4,7 @@ SRCDIR = @srcdir@
VPATH = @srcdir@
MODULE = rundll32.exe
APPMODE = cui
IMPORTS = kernel32
IMPORTS = user32 kernel32
C_SRCS = \
rundll32.c

298
programs/rundll32/rundll32.c
View File

@ -2,6 +2,8 @@
* PURPOSE: Load a DLL and run an entry point with the specified parameters
*
* Copyright 2002 Alberto Massari
* Copyright 2001-2003 Aric Stewart for Codeweavers
* 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
@ -27,102 +29,256 @@
*
*/
/**
* FIXME - currently receives command-line parameters in ASCII only and later
* converts to Unicode. Ideally the function should have wWinMain entry point
* and then work in Unicode only, but it seems Wine does not have necessary
* support.
*/
#include "config.h"
#include "wine/port.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/* Exclude rarely-used stuff from Windows headers */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wine/debug.h>
typedef void (*EntryPointW) (HWND hWnd, HINSTANCE hInst, LPWSTR lpszCmdLine, int nCmdShow);
typedef void (*EntryPointA) (HWND hWnd, HINSTANCE hInst, LPSTR lpszCmdLine, int nCmdShow);
WINE_DEFAULT_DEBUG_CHANNEL(rundll32);
/**
* Loads procedure.
*
* Parameters:
* strDll - name of the dll.
* procName - name of the procedure to load from dll
* pDllHanlde - output variable receives handle of the loaded dll.
/*
* Control_RunDLL has these parameters
*/
static FARPROC LoadProc(char* strDll, char* procName, HMODULE* DllHandle)
{
FARPROC proc;
typedef void (WINAPI *EntryPointW)(HWND hWnd, HINSTANCE hInst, LPWSTR lpszCmdLine, int nCmdShow);
typedef void (WINAPI *EntryPointA)(HWND hWnd, HINSTANCE hInst, LPSTR lpszCmdLine, int nCmdShow);
*DllHandle = LoadLibrary(strDll);
if(!*DllHandle)
/*
* Control_RunDLL needs to have a window. So lets make us a very
* simple window class.
*/
static TCHAR *szTitle = "rundll32";
static TCHAR *szWindowClass = "class_rundll32";
static ATOM MyRegisterClass(HINSTANCE hInstance)
{
exit(-1);
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)DefWindowProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = NULL;
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = NULL;
return RegisterClassEx(&wcex);
}
proc = GetProcAddress(*DllHandle, procName);
if(!proc)
static LPWSTR GetNextArg(LPCWSTR *cmdline)
{
FreeLibrary(*DllHandle);
LPCWSTR s;
LPWSTR arg,d;
int in_quotes,bcount,len=0;
/* count the chars */
bcount=0;
in_quotes=0;
s=*cmdline;
while (1) {
if (*s==0 || ((*s=='\t' || *s==' ') && !in_quotes)) {
/* end of this command line argument */
break;
} else if (*s=='\\') {
/* '\', count them */
bcount++;
} else if ((*s=='"') && ((bcount & 1)==0)) {
/* unescaped '"' */
in_quotes=!in_quotes;
bcount=0;
} else {
/* a regular character */
bcount=0;
}
s++;
len++;
}
arg=HeapAlloc(GetProcessHeap(), 0, (len+1)*sizeof(WCHAR));
if (!arg)
return NULL;
bcount=0;
in_quotes=0;
d=arg;
s=*cmdline;
while (*s) {
if ((*s=='\t' || *s==' ') && !in_quotes) {
/* end of this command line argument */
break;
} else if (*s=='\\') {
/* '\\' */
*d++=*s++;
bcount++;
} else if (*s=='"') {
/* '"' */
if ((bcount & 1)==0) {
/* Preceeded by an even number of '\', this is half that
* number of '\', plus a quote which we erase.
*/
d-=bcount/2;
in_quotes=!in_quotes;
s++;
} else {
/* Preceeded by an odd number of '\', this is half that
* number of '\' followed by a '"'
*/
d=d-bcount/2-1;
*d++='"';
s++;
}
bcount=0;
} else {
/* a regular character */
*d++=*s++;
bcount=0;
}
return proc;
}
*d=0;
*cmdline=s;
/* skip the remaining spaces */
while (**cmdline=='\t' || **cmdline==' ') {
(*cmdline)++;
}
return arg;
}
int main(int argc, char* argv[])
{
char szDllName[MAX_PATH],szEntryPoint[64],szCmdLine[2048];
char* comma;
EntryPointW pfEntryPointW;
EntryPointA pfEntryPointA;
HMODULE DllHandle=NULL;
HWND hWnd;
LPCWSTR szCmdLine;
LPWSTR szDllName,szEntryPoint;
char* szProcName;
HMODULE hDll;
EntryPointW pEntryPointW;
EntryPointA pEntryPointA;
int len;
if(argc<2)
return 0;
comma=strchr(argv[1],',');
if(comma==NULL)
return 0;
/* Extract the name of the DLL */
memset(szDllName,0,MAX_PATH);
strncpy(szDllName,argv[1],(comma-argv[1]));
/* Merge the other paramters into one big command line */
memset(szCmdLine,0,2048);
if(argc>2)
hWnd=NULL;
hDll=NULL;
szDllName=NULL;
szProcName=NULL;
/* Initialize the rundll32 class */
MyRegisterClass( NULL );
hWnd = CreateWindow(szWindowClass, szTitle,
WS_OVERLAPPEDWINDOW|WS_VISIBLE,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, NULL, NULL);
/* Skip the rundll32.exe path */
szCmdLine=GetCommandLineW();
WINE_TRACE("CmdLine=%s\n",wine_dbgstr_w(szCmdLine));
szDllName=GetNextArg(&szCmdLine);
if (!szDllName || *szDllName==0)
goto CLEANUP;
HeapFree(GetProcessHeap(),0,szDllName);
/* Get the dll name and API EntryPoint */
szDllName=GetNextArg(&szCmdLine);
if (!szDllName || *szDllName==0)
goto CLEANUP;
WINE_TRACE("DllName=%s\n",wine_dbgstr_w(szDllName));
szEntryPoint=szDllName;
while (*szEntryPoint!=0 && *szEntryPoint!=0x002c /* ',' */)
szEntryPoint++;
if (*szEntryPoint==0)
goto CLEANUP;
*szEntryPoint++=0;
WINE_TRACE("EntryPoint=%s\n",wine_dbgstr_w(szEntryPoint));
/* Load the library */
hDll=LoadLibraryW(szDllName);
if (!hDll)
{
int i;
for(i=2;i<argc;i++)
{
strcat(szCmdLine,argv[i]);
if(i+1<argc) strcat(szCmdLine," ");
}
/* Windows has a MessageBox here... */
WINE_WARN("Unable to load %s\n",wine_dbgstr_w(szDllName));
goto CLEANUP;
}
/* try loading the UNICODE version first */
strcpy(szEntryPoint,comma+1);
strcat(szEntryPoint,"W");
pfEntryPointW=(EntryPointW)LoadProc(szDllName, szEntryPoint, &DllHandle);
if(pfEntryPointW!=NULL)
/* Try the Unicode entrypoint. Note that GetProcAddress only takes ascii
* names.
*/
len=WideCharToMultiByte(CP_ACP,0,szEntryPoint,-1,NULL,0,NULL,NULL);
szProcName=HeapAlloc(GetProcessHeap(),0,len);
if (!szProcName)
goto CLEANUP;
WideCharToMultiByte(CP_ACP,0,szEntryPoint,-1,szProcName,len,NULL,NULL);
szProcName[len-1]=0x0057;
szProcName[len]=0;
pEntryPointW=(void*)GetProcAddress(hDll,szProcName);
if (pEntryPointW)
{
WCHAR wszCmdLine[2048];
MultiByteToWideChar(CP_ACP,0,szCmdLine,-1,wszCmdLine,2048);
pfEntryPointW(NULL,DllHandle,wszCmdLine,SW_HIDE);
WCHAR* szArguments=NULL;
/* Make a copy of the arguments so they are writable */
len=lstrlenW(szCmdLine);
if (len>0)
{
szArguments=HeapAlloc(GetProcessHeap(),0,(len+1)*sizeof(WCHAR));
if (!szArguments)
goto CLEANUP;
lstrcpyW(szArguments,szCmdLine);
}
WINE_TRACE("Calling %s, arguments=%s\n",
szProcName,wine_dbgstr_w(szArguments));
pEntryPointW(hWnd,hDll,szArguments,SW_SHOWDEFAULT);
if (szArguments)
HeapFree(GetProcessHeap(),0,szArguments);
}
else
{
strcpy(szEntryPoint,comma+1);
strcat(szEntryPoint,"A");
pfEntryPointA=(EntryPointA)LoadProc(szDllName, szEntryPoint, &DllHandle);
if(pfEntryPointA==NULL)
/* Then try to append 'A' and finally nothing */
szProcName[len-1]=0x0041;
pEntryPointA=(void*)GetProcAddress(hDll,szProcName);
if (!pEntryPointA)
{
strcpy(szEntryPoint,comma+1);
pfEntryPointA=(EntryPointA)LoadProc(szDllName, szEntryPoint, &DllHandle);
if(pfEntryPointA==NULL)
return 0;
szProcName[len-1]=0;
pEntryPointA=(void*)GetProcAddress(hDll,szProcName);
}
pfEntryPointA(NULL,DllHandle,szCmdLine,SW_HIDE);
if (pEntryPointA)
{
char* szArguments=NULL;
/* Convert the command line to ascii */
WINE_TRACE("Calling %s, arguments=%s\n",
szProcName,wine_dbgstr_a(szArguments));
len=WideCharToMultiByte(CP_ACP,0,szCmdLine,-1,NULL,0,NULL,NULL);
if (len>1)
{
szArguments=HeapAlloc(GetProcessHeap(),0,len);
if (!szArguments)
goto CLEANUP;
WideCharToMultiByte(CP_ACP,0,szCmdLine,-1,szArguments,len,NULL,NULL);
}
pEntryPointA(hWnd,hDll,szArguments,SW_SHOWDEFAULT);
if (szArguments)
HeapFree(GetProcessHeap(),0,szArguments);
}
if(DllHandle)
FreeLibrary(DllHandle);
return 0;
else
{
/* Windows has a MessageBox here... */
WINE_WARN("Unable to find the entry point: %s\n",szProcName);
}
}
CLEANUP:
if (hWnd)
DestroyWindow(hWnd);
if (hDll)
FreeLibrary(hDll);
if (szDllName)
HeapFree(GetProcessHeap(),0,szDllName);
if (szProcName)
HeapFree(GetProcessHeap(),0,szProcName);
return 0; /* rundll32 always returns 0! */
}