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/*
** Zabbix
** Copyright (C) 2001-2020 Zabbix SIA
**
** This program 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 program 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 program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "symbols.h"
#include "log.h"
DWORD (__stdcall *zbx_GetGuiResources)(HANDLE, DWORD) = NULL;
BOOL (__stdcall *zbx_GetProcessIoCounters)(HANDLE, PIO_COUNTERS) = NULL;
BOOL (__stdcall *zbx_GetPerformanceInfo)(PPERFORMANCE_INFORMATION, DWORD) = NULL;
BOOL (__stdcall *zbx_GlobalMemoryStatusEx)(LPMEMORYSTATUSEX) = NULL;
BOOL (__stdcall *zbx_GetFileInformationByHandleEx)(HANDLE, ZBX_FILE_INFO_BY_HANDLE_CLASS, LPVOID, DWORD) = NULL;
static FARPROC GetProcAddressAndLog(HMODULE hModule, const char *procName)
{
FARPROC ptr;
if (NULL == (ptr = GetProcAddress(hModule, procName)))
zabbix_log(LOG_LEVEL_DEBUG, "unable to resolve symbol '%s'", procName);
return ptr;
}
void import_symbols(void)
{
HMODULE hModule;
if (NULL != (hModule = GetModuleHandle(TEXT("USER32.DLL"))))
zbx_GetGuiResources = (DWORD (__stdcall *)(HANDLE, DWORD))GetProcAddressAndLog(hModule, "GetGuiResources");
else
zabbix_log(LOG_LEVEL_DEBUG, "unable to get handle to USER32.DLL");
if (NULL != (hModule = GetModuleHandle(TEXT("KERNEL32.DLL"))))
{
zbx_GetProcessIoCounters = (BOOL (__stdcall *)(HANDLE, PIO_COUNTERS))GetProcAddressAndLog(hModule, "GetProcessIoCounters");
zbx_GlobalMemoryStatusEx = (BOOL (__stdcall *)(LPMEMORYSTATUSEX))GetProcAddressAndLog(hModule, "GlobalMemoryStatusEx");
zbx_GetFileInformationByHandleEx = (BOOL (__stdcall *)(HANDLE, ZBX_FILE_INFO_BY_HANDLE_CLASS, LPVOID,
DWORD))GetProcAddressAndLog(hModule, "GetFileInformationByHandleEx");
}
else
zabbix_log(LOG_LEVEL_DEBUG, "unable to get handle to KERNEL32.DLL");
if (NULL != (hModule = GetModuleHandle(TEXT("PSAPI.DLL"))))
zbx_GetPerformanceInfo = (BOOL (__stdcall *)(PPERFORMANCE_INFORMATION, DWORD))GetProcAddressAndLog(hModule, "GetPerformanceInfo");
else
zabbix_log(LOG_LEVEL_DEBUG, "unable to get handle to PSAPI.DLL");
}
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