If we don't have usecommonopt for our application we shouldn't check the

default values for snmp protocol level stuff. Makes snmp mibtree work
again which got broken since the defaults changed back in 2021.

Reported by Matthias Pitzl (pitzl <at> genua <dot> de)
Hint to use usecommonopt and OK gerhard@

diff --git a/usr.bin/snmp/snmpc.c b/usr.bin/snmp/snmpc.c
index 278da52..a094121 100644 (file)
--- a/usr.bin/snmp/snmpc.c
+++ b/usr.bin/snmp/snmpc.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: snmpc.c,v 1.38 2021/10/21 08:17:34 martijn Exp $      */
+/*     $OpenBSD: snmpc.c,v 1.39 2022/12/20 20:12:27 martijn Exp $      */
 
 /*
  * Copyright (c) 2019 Martijn van Duren <martijn@openbsd.org>
@@ -468,7 +468,9 @@ main(int argc, char *argv[])
        argc -= optind;
        argv += optind;
 
-       if (version == SNMP_V1 || version == SNMP_V2C) {
+       if (!snmp_app->usecommonopt) {
+               /* No SNMP protocol settings */
+       } else if (version == SNMP_V1 || version == SNMP_V2C) {
                if (community == NULL || community[0] == '\0')
                        errx(1, "No community name specified.");
        } else if (version == SNMP_V3) {