File xmail-1.27_badsmtplogin.patch of Package XMail

diff -Naru xmail-1.27_orig/MailSvr.cpp xmail-1.27/MailSvr.cpp
--- xmail-1.27_orig/MailSvr.cpp	2010-02-26 12:33:44.000000000 +0900
+++ xmail-1.27/MailSvr.cpp	2014-11-14 18:53:06.446065316 +0900
@@ -80,6 +80,7 @@
 #define STD_POP3AUTH_EXPIRE_TIME    (15 * 60)
 #define FILTER_TIMEOUT              90000
 #define SVR_MAX_SERVICES            32
+#define STD_SMTP_BADLOGIN_WAIT      5
 
 
 enum SvrServices {
@@ -780,6 +781,7 @@
 	int iMaxRcpts = STD_SMTP_MAX_RCPTS;
 	unsigned int uPopAuthExpireTime = STD_POP3AUTH_EXPIRE_TIME;
 	long lMaxThreads = MAX_SMTP_THREADS;
+	int iBadLoginWait = STD_SMTP_BADLOGIN_WAIT;
 	unsigned long ulFlags = 0;
 
 	/*
@@ -841,6 +843,11 @@
 		case '6':
 			iFamily = AF_INET6;
 			break;
+
+		case 'w':
+			if (++i < iArgCount)
+				iBadLoginWait = (unsigned int) atol(pszArgs[i]);
+			break;
 		}
 	}
 
@@ -861,6 +868,7 @@
 	pSMTPCfg->iTimeout = STD_SERVER_TIMEOUT;
 	pSMTPCfg->iMaxRcpts = iMaxRcpts;
 	pSMTPCfg->uPopAuthExpireTime = uPopAuthExpireTime;
+	pSMTPCfg->iBadLoginWait = iBadLoginWait;
 
 	ShbUnlock(hShbSMTP);
 	if (iDisable)
diff -Naru xmail-1.27_orig/SMTPSvr.cpp xmail-1.27/SMTPSvr.cpp
--- xmail-1.27_orig/SMTPSvr.cpp	2010-02-26 12:33:44.000000000 +0900
+++ xmail-1.27/SMTPSvr.cpp	2014-11-14 18:35:05.411405569 +0900
@@ -135,6 +135,7 @@
 	char *pszCustMsg;
 	char szRejMapName[256];
 	char *pszNoTLSAuths;
+	int iBadLoginWait;
 };
 
 enum SmtpAuthFields {
@@ -672,6 +673,8 @@
 	/* Get custom message to append to the SMTP response */
 	SMTPS.pszNoTLSAuths = SvrGetConfigVar(SMTPS.hSvrConfig, "SmtpNoTLSAuths");
 
+	SMTPS.iBadLoginWait = SMTPS.pSMTPCfg->iBadLoginWait;
+
 	return 0;
 }
 
@@ -2447,6 +2450,9 @@
 		return ErrorPop();
 	}
 	if (iExitCode != SVR_SMTP_EXTAUTH_SUCCESS) {
+		SysSleep(SMTPS.iBadLoginWait);
+		SMTPS.iBadLoginWait += SMTPS.iBadLoginWait;
+
 		SMTPSendError(hBSock, SMTPS, "503 Authentication failed");
 
 		ErrSetErrorCode(ERR_BAD_EXTRNPRG_EXITCODE);
@@ -2645,6 +2651,9 @@
 		    SMTPTryApplyUsrPwdAuth(SMTPS, pszUsername, pszPassword) < 0) {
 			ErrorPush();
 
+			SysSleep(SMTPS.iBadLoginWait);
+			SMTPS.iBadLoginWait += SMTPS.iBadLoginWait;
+
 			SMTPSendError(hBSock, SMTPS, "503 Authentication failed");
 
 			return ErrorPop();
@@ -2726,6 +2735,9 @@
 		    SMTPTryApplyUsrPwdAuth(SMTPS, szUsername, szPassword) < 0) {
 			ErrorPush();
 
+			SysSleep(SMTPS.iBadLoginWait);
+			SMTPS.iBadLoginWait += SMTPS.iBadLoginWait;
+
 			SMTPSendError(hBSock, SMTPS, "503 Authentication failed");
 
 			return ErrorPop();
@@ -2885,6 +2897,9 @@
 		    SMTPTryApplyCMD5Auth(SMTPS, SMTPS.szTimeStamp, pszUsername, pszDigest) < 0) {
 			ErrorPush();
 
+			SysSleep(SMTPS.iBadLoginWait);
+			SMTPS.iBadLoginWait += SMTPS.iBadLoginWait;
+
 			SMTPSendError(hBSock, SMTPS, "503 Authentication failed");
 
 			return ErrorPop();
diff -Naru xmail-1.27_orig/SMTPSvr.h xmail-1.27/SMTPSvr.h
--- xmail-1.27_orig/SMTPSvr.h	2010-02-26 12:33:44.000000000 +0900
+++ xmail-1.27/SMTPSvr.h	2014-11-14 17:28:20.532106097 +0900
@@ -39,6 +39,7 @@
 	int iTimeout;
 	int iMaxRcpts;
 	unsigned int uPopAuthExpireTime;
+	int iBadLoginWait;
 };
 
 unsigned int SMTPClientThread(void *pThreadData);