change systerm code and avoid mem leak

source/dnode/mgmt/exe/dmMain.c

@@ -268,6 +268,11 @@ int mainWindows(int argc, char **argv) {
 
   if (dmInit() != 0) {
     dError("failed to init dnode since %s", terrstr());
+
+    taosCleanupCfg();
+    taosCloseLog();
+    taosCleanupArgs();
+    taosConvDestroy();
     return -1;
   }
 

source/libs/transport/src/transSvr.c

@@ -1001,6 +1001,13 @@ void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads,
   uv_loop_init(srv->loop);
 
   char pipeName[PATH_MAX];
+
+  if (false == taosValidIpAndPort(srv->ip, srv->port)) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    tError("invalid ip/port, %d:%d, reason:%s", srv->ip, srv->port, terrstr());
+    goto End;
+  }
+
 #if defined(WINDOWS) || defined(DARWIN)
   int ret = uv_pipe_init(srv->loop, &srv->pipeListen, 0);
   if (ret != 0) {
@@ -1087,12 +1094,6 @@ void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads,
   }
 #endif
 
-  if (false == taosValidIpAndPort(srv->ip, srv->port)) {
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    tError("invalid ip/port, %d:%d, reason:%s", srv->ip, srv->port, terrstr());
-    goto End;
-  }
-
   if (false == addHandleToAcceptloop(srv)) {
     goto End;
   }
@@ -1185,8 +1186,8 @@ void transCloseServer(void* arg) {
   // impl later
   SServerObj* srv = arg;
 
-  tDebug("send quit msg to accept thread");
   if (srv->inited) {
+    tDebug("send quit msg to accept thread");
     uv_async_send(srv->pAcceptAsync);
     taosThreadJoin(srv->thread, NULL);
     SRV_RELEASE_UV(srv->loop);

source/util/src/terror.c

@@ -643,13 +643,10 @@ const char* tstrerror(int32_t err) {
   // this is a system errno
   if ((err & 0x00ff0000) == 0x00ff0000) {
     int32_t code = err & 0x0000ffff;
-    if (code >= 0 && code < 36) {
-      return strerror(code);
-    } else {
-      return "unknown err";
-    }
+    // strerror can handle any invalid code
+    // invalid code return Unknown error 
+    return strerror(code);
   }
-
   int32_t s = 0;
   int32_t e = sizeof(errors) / sizeof(errors[0]);