From: Stephen Hemminger <stephen@networkplumber.org>
Date: Thu, 8 Feb 2024 17:23:07 +0000 (-0800)
Subject: ip: detect errors in netconf monitor mode
X-Git-Tag: v6.8.0~21
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=00e8a64dac3be0203b149d3fe0307723ff76403e;p=thirdparty%2Fiproute2.git

ip: detect errors in netconf monitor mode

If rtnl_listen() returns error while looking for netconf events,
then exit with status of 2 as other iproute2 monitor actions do.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---

diff --git a/ip/ipnetconf.c b/ip/ipnetconf.c
index 9ae6c45e7..a0c7e051b 100644
--- a/ip/ipnetconf.c
+++ b/ip/ipnetconf.c
@@ -193,7 +193,8 @@ static int do_show(int argc, char **argv)
 			perror("Can not send request");
 			exit(1);
 		}
-		rtnl_listen(&rth, print_netconf, stdout);
+		if (rtnl_listen(&rth, print_netconf, stdout) < 0)
+			exit(2);
 	} else {
 		rth.flags = RTNL_HANDLE_F_SUPPRESS_NLERR;
 dump: