del not used variable

server/src/main.cpp

@@ -153,11 +153,13 @@ names_done:
 			}
 			// alarm logic
 			if(cert->m_aExpireTS>0){
-				int days = (int)((cert->m_aExpireTS - nowt)/86400);
-				int64_t *lastAlarm = NULL; int need=0; int target=0;
-				if(days <=7 && days >3){ lastAlarm=&cert->m_aLastAlarm7; target=7; }
-				else if(days <=3 && days >1){ lastAlarm=&cert->m_aLastAlarm3; target=3; }
-				else if(days <=1){ lastAlarm=&cert->m_aLastAlarm1; target=1; }
+				// 剩余天数: 向下取整 (floor) —— 与 JSON expire_days 保持一致，用于阈值分桶和消息显示
+				int64_t secsLeft = cert->m_aExpireTS - nowt;
+				int days = (int)(secsLeft/86400);
+				int64_t *lastAlarm = NULL; int need=0;
+				if(days <=7 && days >3){ lastAlarm=&cert->m_aLastAlarm7; }
+				else if(days <=3 && days >1){ lastAlarm=&cert->m_aLastAlarm3; }
+				else if(days <=1){ lastAlarm=&cert->m_aLastAlarm1; }
 				if(lastAlarm && (*lastAlarm==0 || nowt - *lastAlarm > 20*3600)) need=1; // avoid spam, 20h
 				if(need && strlen(cert->m_aCallback)>0){
 					CURL *curl = curl_easy_init();
@@ -166,7 +168,8 @@ names_done:
 						char timebuf[32];
 						time_t expt = (time_t)cert->m_aExpireTS;
 						strftime(timebuf,sizeof(timebuf),"%Y-%m-%d %H:%M:%S", gmtime(&expt));
-						snprintf(msg,sizeof(msg),"【SSL证书提醒】%s(%s) 将在 %d 天后(%s UTC) 到期", cert->m_aName, cert->m_aDomain, target, timebuf);
+						// 使用 floor(days)
+										snprintf(msg,sizeof(msg),"【SSL证书提醒】%s(%s) 将在 %d 天后(%s UTC) 到期", cert->m_aName, cert->m_aDomain, days, timebuf);
 						char *enc = curl_easy_escape(curl,msg,0);
 						char url[1500]; snprintf(url,sizeof(url),"%s%s", cert->m_aCallback, enc?enc:"");
 						curl_easy_setopt(curl, CURLOPT_POST, 1L);