From 0fe26f1507dfefc561de32f5b73fc82c93e02112 Mon Sep 17 00:00:00 2001
From: facetosea <25808407@qq.com>
Date: Mon, 4 Dec 2023 10:40:43 +0800
Subject: [PATCH] fix error msg if failed get ip from fqdn

---
 source/common/src/tglobal.c          |  2 +-
 source/libs/transport/src/transCli.c |  2 +-
 source/os/test/osTests.cpp           | 29 ++++++++++++++++++++++++++++
 3 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index ced68c134e..39cd2d604b 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -1282,7 +1282,7 @@ int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDi
 static int32_t taosCheckGlobalCfg() {
   uint32_t ipv4 = taosGetIpv4FromFqdn(tsLocalFqdn);
   if (ipv4 == 0xffffffff) {
-    terrno = TAOS_SYSTEM_ERROR(errno);
+    terrno = TSDB_CODE_RPC_FQDN_ERROR;
     uError("failed to get ip from fqdn:%s since %s, dnode can not be initialized", tsLocalFqdn, terrstr());
     return -1;
   }
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index e51c61c49d..936d11c151 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -1468,7 +1468,7 @@ static FORCE_INLINE uint32_t cliGetIpFromFqdnCache(SHashObj* cache, char* fqdn)
   if (v == NULL) {
     addr = taosGetIpv4FromFqdn(fqdn);
     if (addr == 0xffffffff) {
-      terrno = TAOS_SYSTEM_ERROR(errno);
+      terrno = TSDB_CODE_RPC_FQDN_ERROR;
       tError("failed to get ip from fqdn:%s since %s", fqdn, terrstr());
       return addr;
     }
diff --git a/source/os/test/osTests.cpp b/source/os/test/osTests.cpp
index e2185aeac2..62d3e9ec36 100644
--- a/source/os/test/osTests.cpp
+++ b/source/os/test/osTests.cpp
@@ -32,6 +32,35 @@
 
 #ifdef WINDOWS
 #include <windows.h>
+#else
+
+#include <arpa/inet.h>
+
+TEST(osTest, osFQDNSuccess) {
+  char     fqdn[1024];
+  char     ipString[INET_ADDRSTRLEN];
+  int      code = taosGetFqdn(fqdn);
+  uint32_t ipv4 = taosGetIpv4FromFqdn(fqdn);
+  ASSERT_NE(ipv4, 0xffffffff);
+
+  struct in_addr addr;
+  addr.s_addr = htonl(ipv4);
+  snprintf(ipString, INET_ADDRSTRLEN, "%u.%u.%u.%u", (unsigned int)(addr.s_addr >> 24) & 0xFF,
+           (unsigned int)(addr.s_addr >> 16) & 0xFF, (unsigned int)(addr.s_addr >> 8) & 0xFF,
+           (unsigned int)(addr.s_addr) & 0xFF);
+  printf("fqdn:%s  ip:%s\n", fqdn, ipString);
+}
+
+TEST(osTest, osFQDNFailed) {
+  char     fqdn[1024] = "fqdn_test_not_found";
+  char     ipString[24];
+  uint32_t ipv4 = taosGetIpv4FromFqdn(fqdn);
+  ASSERT_EQ(ipv4, 0xffffffff);
+
+  terrno = TSDB_CODE_RPC_FQDN_ERROR;
+  printf("fqdn:%s transfer to ip failed!\n", fqdn);
+}
+
 #endif  //  WINDOWS
 
 TEST(osTest, osSystem) {