From b10355a536eeb5e3bb508a359651d892f7279027 Mon Sep 17 00:00:00 2001
From: cpq <sergey.lyubka@cesanta.com>
Date: Sun, 25 Jan 2026 17:21:16 +0000
Subject: [PATCH] Fast fail mg_connect() if network is down

---
 mongoose.c | 4 ++++
 src/net.c  | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/mongoose.c b/mongoose.c
index 9e059367..4aaa238b 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -4673,6 +4673,10 @@ struct mg_connection *mg_connect_svc(struct mg_mgr *mgr, const char *url,
   struct mg_connection *c = NULL;
   if (url == NULL || url[0] == '\0') {
     MG_ERROR(("null url"));
+#if MG_ENABLE_TCPIP
+  } else if (mgr->ifp != NULL && mgr->ifp->state != MG_TCPIP_STATE_READY) {
+    MG_ERROR(("Network is down"));
+#endif
   } else if ((c = mg_alloc_conn(mgr)) == NULL) {
     MG_ERROR(("OOM"));
   } else {
diff --git a/src/net.c b/src/net.c
index a86ea4c3..af51b649 100644
--- a/src/net.c
+++ b/src/net.c
@@ -173,6 +173,10 @@ struct mg_connection *mg_connect_svc(struct mg_mgr *mgr, const char *url,
   struct mg_connection *c = NULL;
   if (url == NULL || url[0] == '\0') {
     MG_ERROR(("null url"));
+#if MG_ENABLE_TCPIP
+  } else if (mgr->ifp != NULL && mgr->ifp->state != MG_TCPIP_STATE_READY) {
+    MG_ERROR(("Network is down"));
+#endif
   } else if ((c = mg_alloc_conn(mgr)) == NULL) {
     MG_ERROR(("OOM"));
   } else {