logread should handle return code when sending data over the net

Signed-off-by: John Crispin <blogic@openwrt.org>

diff --git a/logread.c b/logread.c
index 16af3ef7359d2a1ae3e641eef0103e45f43d3aa3..1bf3ed86e07d7f87f9d8e952cdad9639dcafbe4b 100644 (file)
--- a/logread.c
+++ b/logread.c
@@ -129,10 +129,24 @@ static int log_notify(struct ubus_context *ctx, struct ubus_object *obj,
        c[strlen(c) - 1] = '\0';
        str = blobmsg_format_json(msg, true);
        if (log_type == LOG_NET) {
+               int err;
+
                snprintf(buf, sizeof(buf), "%s%s\n",
                        (blobmsg_get_u32(tb[LOG_SOURCE])) ? ("") : ("kernel: "),
                        method);
-               send(sender.fd, buf, strlen(buf), 0);
+               if (log_udp)
+                       err = write(sender.fd, buf, strlen(buf));
+               else
+                       err = send(sender.fd, buf, strlen(buf), 0);
+
+               if (err < 0) {
+                       syslog(0, "failed to send log data to %s:%s via %s\n",
+                               log_ip, log_port, (log_udp) ? ("udp") : ("tcp"));
+                       uloop_fd_delete(&sender);
+                       close(sender.fd);
+                       sender.fd = -1;
+                       uloop_timeout_set(&retry, 1000);
+               }
        } else {
                snprintf(buf, sizeof(buf), "%s %s.%s%s %s\n",
                        c, facilitynames[LOG_FAC(p)].c_name, prioritynames[LOG_PRI(p)].c_name,