Do not log errors form pcap_dispatch() caused by signals.

pcap_dispatch() returns -1 (PCAP_ERROR) or -2 (PCAP_ERROR_BREAK) the
latter is used when a signal is received and is not an error. So limit
the code to log errors to np == -1.
OK semarie@ sashan@

diff --git a/sbin/pflogd/pflogd.c b/sbin/pflogd/pflogd.c
index 271e463..ad4230c 100644 (file)
--- a/sbin/pflogd/pflogd.c
+++ b/sbin/pflogd/pflogd.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: pflogd.c,v 1.65 2023/11/12 15:18:04 dlg Exp $ */
+/*     $OpenBSD: pflogd.c,v 1.66 2023/11/17 12:10:23 claudio Exp $     */
 
 /*
  * Copyright (c) 2001 Theo de Raadt
@@ -725,7 +725,7 @@ main(int argc, char **argv)
        while (1) {
                np = pcap_dispatch(hpcap, PCAP_NUM_PKTS,
                    phandler, (u_char *)dpcap);
-               if (np < 0) {
+               if (np == -1) {
                        if (!if_exists(interface)) {
                                logmsg(LOG_NOTICE, "interface %s went away",
                                    interface);