114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2006, Swedish Institute of Computer Science.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
* Author: Oliver Schmidt <ol.sc@web.de>
|
|
*
|
|
* $Id: dll-loader.c,v 1.2 2007/11/18 02:36:07 oliverschmidt Exp $
|
|
*/
|
|
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#define _WIN32_WINNT 0x0501
|
|
#include <windows.h>
|
|
|
|
#include "contiki.h"
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
dll_loader_load(char *name, char *arg)
|
|
{
|
|
HMODULE handle;
|
|
FARPROC p;
|
|
|
|
/* Load and link the program. */
|
|
handle = LoadLibrary(name);
|
|
|
|
if(handle == NULL) {
|
|
debug_printf("dll_loader_load: loading failed: %d\n", GetLastError());
|
|
return LOADER_ERR_OPEN;
|
|
}
|
|
|
|
/* Find the main process of the loaded program. */
|
|
p = GetProcAddress(handle, "process_load");
|
|
if(p == NULL) {
|
|
debug_printf("dll_loader_load: could not find process startpoint 'process_load'\n");
|
|
return LOADER_ERR_READ;
|
|
}
|
|
|
|
/* Start the process. */
|
|
debug_printf("Starting '%s'\n", (**(struct process***)&p)->name);
|
|
process_start(**(struct process***)&p, arg);
|
|
|
|
return LOADER_OK;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
dll_loader_unload(void *addr)
|
|
{
|
|
/* Avoid Access Violation Exception due to unloading code still being executed. */
|
|
QueueUserAPC((PAPCFUNC)dll_loader_unload_dsc, GetCurrentThread(), (ULONG_PTR)addr);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
struct dsc *
|
|
dll_loader_load_dsc(char *name)
|
|
{
|
|
HMODULE handle;
|
|
FARPROC d;
|
|
char symbol[24];
|
|
|
|
handle = LoadLibrary(name);
|
|
|
|
if(handle == NULL) {
|
|
debug_printf("dll_loader_load_dsc: loading failed: %d\n", GetLastError());
|
|
return NULL;
|
|
}
|
|
|
|
strcpy(symbol, name);
|
|
*strchr(symbol, '.') = '_';
|
|
|
|
d = GetProcAddress(handle, symbol);
|
|
if(d == NULL) {
|
|
debug_printf("dll_loader_load_dsc: could not find symbol '%s'\n", symbol);
|
|
return NULL;
|
|
}
|
|
|
|
return *(struct dsc **)&d;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void __stdcall
|
|
dll_loader_unload_dsc(void *addr)
|
|
{
|
|
HMODULE handle;
|
|
|
|
GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
|
|
GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, addr, &handle);
|
|
FreeLibrary(handle);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|