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开发平台：
Visual C++

Util.cpp：源码内容
							#include "stdafx.h"
#include <stdio.h>
#include "resource.h"
CRITICAL_SECTION g_cs_WriteLog, g_cs_WriteStat, g_cs_WriteExistEmail, g_cs_WriteNonexistEmail;
int g_f_all_cs_inited =0, g_f_all_cs_deleted =0;
void InitAllUtilCS()
{
	if(g_f_all_cs_inited) return;
	InitializeCriticalSection(&g_cs_WriteLog);
	InitializeCriticalSection(&g_cs_WriteStat);
	InitializeCriticalSection(&g_cs_WriteExistEmail);
	InitializeCriticalSection(&g_cs_WriteNonexistEmail);
	g_f_all_cs_inited =true;
	g_f_all_cs_deleted =false;
}
void DeleteAllUtilCS()
{
	if(g_f_all_cs_deleted || !g_f_all_cs_inited) return;
	DeleteCriticalSection(&g_cs_WriteLog);
	DeleteCriticalSection(&g_cs_WriteStat);
	DeleteCriticalSection(&g_cs_WriteExistEmail);
	DeleteCriticalSection(&g_cs_WriteNonexistEmail);
	g_f_all_cs_deleted =true;
	g_f_all_cs_inited =false;
}
/*class CUtilInit
{
public:
	CUtilInit()
	{
		InitAllUtilCS();
	}
	~CUtilInit()
	{
		DeleteAllUtilCS();
	}
};
CUtilInit g_util_init;
*/
HWND g_hWndNotify =NULL;
int g_show_stat =true;
int WriteStat(char *format, ...)
{
	if(!g_show_stat) return 0;
	if(g_hWndNotify ==NULL) return 0;
	if(g_f_all_cs_inited) EnterCriticalSection(&g_cs_WriteStat);
	va_list args;
	char temp[4096];
	va_start(args, format);
	int len =vsprintf(temp, format, args);
	va_end(args);
	temp[len] =0;
	CString str;
	CWnd *pdlg =CWnd::FromHandle(g_hWndNotify);
	pdlg->GetDlgItemText(IDE_STAT, str);
	if(str.GetLength() >30000) str ="";
	str +=*(new CString(temp))+"rn";
	pdlg->SetDlgItemText(IDE_STAT, str);
	pdlg->SendDlgItemMessage(IDE_STAT, WM_VSCROLL, SB_BOTTOM, 0L);
	if(g_f_all_cs_inited) LeaveCriticalSection(&g_cs_WriteStat);
	return 0;
}
int WriteError(char *format, ...)
{
	if(g_hWndNotify ==NULL) return 0;
	if(g_f_all_cs_inited) EnterCriticalSection(&g_cs_WriteStat);
	va_list args;
	char temp[4096];
	va_start(args, format);
	int len =vsprintf(temp, format, args);
	va_end(args);
	temp[len] =0;
	CString str;
	CWnd *pdlg =CWnd::FromHandle(g_hWndNotify);
	pdlg->GetDlgItemText(IDE_STAT, str);
	if(str.GetLength() >30000) str ="";
	str +=*(new CString(temp))+"rn";
	pdlg->SetDlgItemText(IDE_STAT, str);
	pdlg->SendDlgItemMessage(IDE_STAT, WM_VSCROLL, SB_BOTTOM, 0L);
	if(g_f_all_cs_inited) LeaveCriticalSection(&g_cs_WriteStat);
	return 0;
}
void WriteLog(char *fmt,...)
{
	if(!g_show_stat) return;
	FILE *fp;
	va_list args;
	char modname[128];
	if(g_f_all_cs_inited) EnterCriticalSection(&g_cs_WriteLog);
	if((fp =fopen("c:\findmail.log", "a")) !=NULL)
	{		
		va_start(args,fmt);
		GetModuleFileName(NULL, modname, sizeof(modname));
		//fprintf(fp, "n%s:n", modname);
		vfprintf(fp, fmt, args);
		fprintf(fp, "n");
		fclose(fp);
		
		va_end(args);
	}
	if(g_f_all_cs_inited) LeaveCriticalSection(&g_cs_WriteLog);
}
// output exist email to file and the edit control
int WriteExistEmail(char *outfile, char *addr)
{
	static int count =0;
	if(g_f_all_cs_inited) EnterCriticalSection(&g_cs_WriteExistEmail);
	FILE *fp;
	if((fp =fopen(outfile, "a")) !=NULL)
	{
		fprintf(fp, "%srn", addr);
		fclose(fp);
	}
	else return -1;
	CString str;
	CWnd *pdlg =CWnd::FromHandle(g_hWndNotify);
	pdlg->GetDlgItemText(IDE_EMAIL_EXIST, str);
	if(str.GetLength() >30000) str ="";
	str +=*(new CString(addr))+"rn";
	pdlg->SetDlgItemText(IDE_EMAIL_EXIST, str);
	pdlg->SendDlgItemMessage(IDE_EMAIL_EXIST, WM_VSCROLL, SB_BOTTOM, 0L);
	SetDlgItemInt(g_hWndNotify, IDC_EXIST_COUNT, ++count, 0);
	
	if(g_f_all_cs_inited) LeaveCriticalSection(&g_cs_WriteExistEmail);
	
	return 0;
}
// output nonexist email to file and the edit control
int g_show_nonexist =true;
int WriteNonexistEmail(char *outfile, char *addr)
{
	if(!g_show_nonexist) return 0;
	static int count =0;	
	if(g_f_all_cs_inited) EnterCriticalSection(&g_cs_WriteNonexistEmail);
	FILE *fp;
	if((fp =fopen(outfile, "a")) !=NULL)
	{
		fprintf(fp, "%srn", addr);
		fclose(fp);
	}
	else return -1;
	CString str;
	CWnd *pdlg =CWnd::FromHandle(g_hWndNotify);
	pdlg->GetDlgItemText(IDE_EMAIL_NONEXIST, str);
	if(str.GetLength() >30000) str ="";
	str +=*(new CString(addr))+"rn";
	pdlg->SetDlgItemText(IDE_EMAIL_NONEXIST, str);
	pdlg->SendDlgItemMessage(IDE_EMAIL_NONEXIST, WM_VSCROLL, SB_BOTTOM, 0L);
	SetDlgItemInt(g_hWndNotify, IDC_NONEXIST_COUNT, ++count, 0);
	if(g_f_all_cs_inited) LeaveCriticalSection(&g_cs_WriteNonexistEmail);
	return 0;
}
void WriteBinData(char *buf, int len)
{
	FILE *fp;
	if((fp =fopen("c:\findmail.log", "a")) !=NULL)
	{
		for(int i =0; i<len; i++)
			fprintf(fp, "%d: %d, %crn", i, buf[i]&0xFF, buf[i]&0xFF);
		fprintf(fp, "nn");
		fclose(fp);
	}
}
char * GetErrString(char *str, DWORD errcode)
{
	LPVOID lpbuf;
	if(FormatMessage( 
		FORMAT_MESSAGE_ALLOCATE_BUFFER |
		FORMAT_MESSAGE_FROM_SYSTEM | 
		FORMAT_MESSAGE_IGNORE_INSERTS,
		NULL,
		errcode,
		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
		(LPTSTR) &lpbuf,
		0,
		NULL
	))
	{
		lstrcpy(str, (char *)lpbuf);
		LocalFree(lpbuf);
	}
	return str;
}

						