Handle EAGAIN properly and fix the log when disconnected.

diff --git a/usr.sbin/radiusd/radiusd_module.c b/usr.sbin/radiusd/radiusd_module.c
index 02b3839..a666051 100644 (file)
--- a/usr.sbin/radiusd/radiusd_module.c
+++ b/usr.sbin/radiusd/radiusd_module.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: radiusd_module.c,v 1.19 2024/07/14 15:27:57 yasuoka Exp $     */
+/*     $OpenBSD: radiusd_module.c,v 1.20 2024/09/15 05:14:32 yasuoka Exp $     */
 
 /*
  * Copyright (c) 2015 YASUOKA Masahiko <yasuoka@yasuoka.net>
@@ -643,9 +643,13 @@ module_on_event(int fd, short evmask, void *ctx)
                if (ret > 0)
                        continue;
                base->writeready = false;
-               if (ret == 0 && errno == EAGAIN)
+               if (ret == -1 && errno == EAGAIN)
                        break;
-               syslog(LOG_ERR, "%s: msgbuf_write: %m", __func__);
+               if (ret == 0)
+                       syslog(LOG_ERR, "%s: connection is closed", __func__);
+               else
+                       syslog(LOG_ERR, "%s: msgbuf_write: %d %m", __func__,
+                           ret);
                module_stop(base);
                return;
        }