diff --git a/include/os/osSocket.h b/include/os/osSocket.h
index 4bad51e26322405d9c4187e3bd7a12a75ee011b9..c6729da76af0e59cb3ccda024709b86fe034b039 100644
--- a/include/os/osSocket.h
+++ b/include/os/osSocket.h
@@ -167,7 +167,7 @@ uint32_t    ip2uint(const char *const ip_addr);
 void        taosIgnSIGPIPE();
 void        taosSetMaskSIGPIPE();
 uint32_t    taosInetAddr(const char *ipAddr);
-const char *taosInetNtoa(struct in_addr ipInt);
+const char *taosInetNtoa(struct in_addr ipInt, char *dstStr, int32_t len);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/src/syncUtil.c b/source/libs/sync/src/syncUtil.c
index 15e94baee4f4d7ff32d2d956cc04f9d2ca3e240f..325073f3660172a1067d0bf92e11a8ae9f88fa01 100644
--- a/source/libs/sync/src/syncUtil.c
+++ b/source/libs/sync/src/syncUtil.c
@@ -57,7 +57,7 @@ void syncUtilU642Addr(uint64_t u64, char* host, size_t len, uint16_t* port) {
 
   struct in_addr addr;
   addr.s_addr = hostU32;
-  snprintf(host, len, "%s", taosInetNtoa(addr));
+  taosInetNtoa(addr, host, len);
   *port = (uint16_t)((u64 & 0x00000000FFFF0000) >> 16);
 }
 
diff --git a/source/os/src/osSocket.c b/source/os/src/osSocket.c
index 22b91ddf1d3d39b423253004f2c73f2418766225..b34d071773591600e06adc9b08873a89b7e2e1b4 100644
--- a/source/os/src/osSocket.c
+++ b/source/os/src/osSocket.c
@@ -312,10 +312,8 @@ uint32_t taosInetAddr(const char *ipAddr) {
   return inet_addr(ipAddr);
 #endif
 }
-const char *taosInetNtoa(struct in_addr ipInt) {
-  // not thread safe, only for debug usage while print log
-  char tmpDstStr[16];
-  return inet_ntop(AF_INET, &ipInt, tmpDstStr, INET6_ADDRSTRLEN);
+const char *taosInetNtoa(struct in_addr ipInt, char *dstStr, int32_t len) {
+  return inet_ntop(AF_INET, &ipInt, dstStr, len);
 }
 
 #ifndef SIGPIPE
@@ -666,7 +664,7 @@ int taosGetLocalIp(const char *eth, char *ip) {
     return -1;
   }
   memcpy(&sin, &ifr.ifr_addr, sizeof(sin));
-  snprintf(ip, 64, "%s", taosInetNtoa(sin.sin_addr));
+  taosInetNtoa(sin.sin_addr, ip, 64);
   taosCloseSocketNoCheck1(fd);
 #endif
   return 0;