From 298c8103db80b292791616af4fd497342a71867f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Josef=20=C5=98=C3=ADdk=C3=BD?= Date: Wed, 24 May 2023 10:49:41 +0200 Subject: [PATCH] libsnmp, UDP transport: Fix sendmsg() error code handling This change has been made because of Linux kernel commit "ipv4: Return -ENETUNREACH if we can't create route but saddr is valid" (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=595e0651d029) Fixes: https://github.com/net-snmp/net-snmp/issues/564 Fixes: https://github.com/net-snmp/net-snmp/pull/576 [ bvanassche: edited commit message ] --- snmplib/transports/snmpUDPBaseDomain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/snmplib/transports/snmpUDPBaseDomain.c b/snmplib/transports/snmpUDPBaseDomain.c index ca8f9a5554..cd6b15e2ad 100644 --- a/snmplib/transports/snmpUDPBaseDomain.c +++ b/snmplib/transports/snmpUDPBaseDomain.c @@ -315,7 +315,7 @@ int netsnmp_udpbase_sendto_unix(int fd, const struct in_addr *srcip, sizeof(struct sockaddr)); else rc = sendmsg(fd, &m, MSG_DONTWAIT); - if (rc >= 0 || errno != EINVAL) + if (rc >= 0 || (errno != EINVAL && errno != ENETUNREACH)) return rc; /*