reactos/modules/rosapps/applications/sysutils/chklib/chklib.c

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/*
* chklib.c
*
* Copyright (C) 1998, 1999 Emanuele Aliberti.
*
* --------------------------------------------------------------------
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This software 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this software; see the file COPYING. If
* not, write to the Free Software Foundation, Inc., 675 Mass Ave,
* Cambridge, MA 02139, USA.
*
* --------------------------------------------------------------------
* Check a PE DLL for loading and get an exported symbol's address
* (relocated).
*
*/
//#define UNICODE
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <stdarg.h>
#include <windef.h>
#include <winbase.h>
#include "../win32err.h"
#ifdef DISPLAY_VERSION
static
void
DisplayVersion(
HANDLE dll,
PCHAR ModuleName
)
{
DWORD Zero;
DWORD Size;
PVOID vi = NULL;
assert(ModuleName);
Size = GetFileVersionInfoSize(
ModuleName,
& Zero
);
if (Size == 0)
{
PrintWin32Error(
L"GetFileVersionInfoSize",
GetLastError()
);
return;
}
vi = (PVOID) LocalAlloc(LMEM_ZEROINIT,Size);
if (!vi) return;
assert(dll != INVALID_HANDLE_VALUE);
if (0 == GetFileVersionInfo(
ModuleName,
(DWORD) dll,
Size,
vi
)
) {
PrintWin32Error(
L"GetFileVersionInfo",
GetLastError()
);
return;
}
/*
VerQueryValue(
vi,
L"\\StringFileInfo\\040904E4\\FileDescription",
& lpBuffer,
& dwBytes
);
*/
LocalFree(vi);
}
#endif /* def DISPLAY_VERSION */
static
void
DisplayEntryPoint(
const HANDLE dll,
LPCSTR SymbolName
)
{
FARPROC EntryPoint;
printf(
"[%s]\n",
SymbolName
);
EntryPoint = GetProcAddress(
dll,
SymbolName
);
if (!EntryPoint)
{
PrintWin32Error(
L"GetProcAddress",
GetLastError()
);
return;
}
printf(
"0x%p %s\n",
EntryPoint,
SymbolName
);
}
/* --- MAIN --- */
int
main(
int argc,
char * argv []
)
{
HINSTANCE dll;
TCHAR ModuleName [_MAX_PATH];
if (argc < 2)
{
fprintf(
stderr,
"\
ReactOS System Tools\n\
Check a Dynamic Link Library (DLL) for loading\n\
Copyright (c) 1998, 1999 Emanuele Aliberti\n\n\
usage: %s module [symbol [, ...]]\n",
argv[0]
);
exit(EXIT_FAILURE);
}
dll = LoadLibraryA(argv[1]);
if (!dll)
{
UINT LastError;
LastError = GetLastError();
PrintWin32Error(L"LoadLibrary",LastError);
fprintf(
stderr,
"%s: loading %s failed (%d).\n",
argv[0],
argv[1],
LastError
);
exit(EXIT_FAILURE);
}
GetModuleFileName(
(HANDLE) dll,
ModuleName,
sizeof ModuleName
);
printf(
"%s loaded.\n",
ModuleName
);
#ifdef DISPLAY_VERSION
DisplayVersion(dll,ModuleName);
#endif
if (argc > 2)
{
int CurrentSymbol;
for ( CurrentSymbol = 2;
(CurrentSymbol < argc);
++CurrentSymbol
)
{
DisplayEntryPoint( dll, argv[CurrentSymbol] );
}
}
FreeLibrary(dll);
printf(
"%s unloaded.\n",
ModuleName
);
return EXIT_SUCCESS;
}
/* EOF */