modify for coverity scan

src/kit/taosdump/taosdump.c

@@ -911,21 +911,27 @@ int32_t taosDumpMetric(char *metric, SDumpArguments *arguments, FILE *fp) {
 
   (void)lseek(fd, 0, SEEK_SET);
 
-  STableRecord tableInfo;
+  //STableRecord tableInfo;
   char tableName[TSDB_TABLE_NAME_LEN] ;
   char metricName[TSDB_TABLE_NAME_LEN];
-  while (1) {    
-    memset(&tableInfo, 0, sizeof(STableRecord));      
+  ssize_t ret;
+  while (1) {
+    //memset(&tableInfo, 0, sizeof(STableRecord));      
     memset(tableName, 0, TSDB_TABLE_NAME_LEN);    
     memset(metricName, 0, TSDB_TABLE_NAME_LEN);
-    ssize_t ret = read(fd, &tableInfo, sizeof(STableRecord));
+    //ssize_t ret = read(fd, &tableInfo, sizeof(STableRecord));
+    //if (ret <= 0) break;
+    ret = read(fd, tableName, TSDB_TABLE_NAME_LEN);
+    if (ret <= 0) break;
+    
+    ret = read(fd, metricName, TSDB_TABLE_NAME_LEN);
     if (ret <= 0) break;
     
     //tableInfo.name[sizeof(tableInfo.name) - 1] = 0;
     //tableInfo.metric[sizeof(tableInfo.metric) - 1] = 0;    
     //taosDumpTable(tableInfo.name, tableInfo.metric, arguments, fp);
-    tstrncpy(tableName, tableInfo.name, TSDB_TABLE_NAME_LEN-1);
-    tstrncpy(metricName, tableInfo.metric, TSDB_TABLE_NAME_LEN-1);
+    //tstrncpy(tableName, tableInfo.name, TSDB_TABLE_NAME_LEN-1);
+    //tstrncpy(metricName, tableInfo.metric, TSDB_TABLE_NAME_LEN-1);
     taosDumpTable(tableName, metricName, arguments, fp);
   }
 

src/util/src/hash.c

@@ -468,7 +468,8 @@ void taosHashTableResize(SHashObj *pHashObj) {
     return;
   }
 
-  void *pNewEntry = realloc(pHashObj->hashList, POINTER_BYTES * newSize);
+  int32_t pointerSize = POINTER_BYTES;
+  void *pNewEntry = realloc(pHashObj->hashList, pointerSize * newSize);
   if (pNewEntry == NULL) {// todo handle error
 //    uTrace("cache resize failed due to out of memory, capacity remain:%d", pHashObj->capacity);
     return;

src/util/src/ttime.c

@@ -56,8 +56,13 @@ int64_t user_mktime64(const unsigned int year0, const unsigned int mon0,
 		year -= 1;
 	}
 
-  int64_t res = (((((int64_t) (year/4 - year/100 + year/400 + (int64_t)(367*mon)/12 + day) +
-		  year*365 - 719499)*24 + hour)*60 + min)*60 + sec);
+  //int64_t res = (((((int64_t) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
+	//	  year*365 - 719499)*24 + hour)*60 + min)*60 + sec);
+  int64_t res;
+  res  = 367*((int64_t)mon)/12;
+  res += year/4 - year/100 + year/400 + day + year*365 - 719499;
+  res  = res*24;
+  res  = ((res + hour) * 60 + min) * 60 + sec;  
 
 	return (res + timezone);
 }