tests/echo_srv: make the main server logic resilient to ECONNABORTED from accept()

That should fix a race where the connect() directly followed by close()
in test_thread_echo_tcp_connect will cause the echo_srv to terminate
early, which results in connect() returning ECONNREFUSED in for other
threads.

This mainly happens on FreeBSD, but it can also happen on Linux.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/tests/echo_srv.c b/tests/echo_srv.c
index 87c85f7..0aefa9a 100644
--- a/tests/echo_srv.c
+++ b/tests/echo_srv.c
@@ -538,6 +538,9 @@ static void echo_tcp(int sock)
 
     while (1) {
         s = accept(sock, &addr.sa.s, &addr.sa_socklen);
+        if (s == -1 && errno == ECONNABORTED) {
+            continue;
+        }
         if (s == -1) {
             perror("accept");
             goto done;