From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 6 Oct 2025 12:59:53 +0000 (+0200)
Subject: telnet: return error if WSAEventSelect fails
X-Git-Tag: rc-8_17_0-3~306
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d9636abd1deea39c7a79f042ca60652a815ddc8;p=thirdparty%2Fcurl.git

telnet: return error if WSAEventSelect fails

Reported-by: Joshua Rogers
Closes #18886
---

diff --git a/lib/telnet.c b/lib/telnet.c
index 1ae15d3704..5144a1afa1 100644
--- a/lib/telnet.c
+++ b/lib/telnet.c
@@ -1371,7 +1371,7 @@ static CURLcode telnet_do(struct Curl_easy *data, bool *done)
   /* Tell Winsock what events we want to listen to */
   if(WSAEventSelect(sockfd, event_handle, FD_READ|FD_CLOSE) == SOCKET_ERROR) {
     WSACloseEvent(event_handle);
-    return CURLE_OK;
+    return CURLE_RECV_ERROR;
   }
 
   /* The get the Windows file handle for stdin */