From: Andrey Jr. Melnikov <temnota.am@gmail.com>
Date: Wed, 24 Aug 2016 20:43:00 +0000 (+0300)
Subject: iproute: disallow ip rule del without parameters
X-Git-Tag: v4.8.0~23
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67a990b8112611e5e4b64f2a5f6ee890422d7695;p=thirdparty%2Fiproute2.git

iproute: disallow ip rule del without parameters

Disallow run `ip rule del` without any parameter to avoid delete any first
rule from table.

Signed-off-by: Andrey Jr. Melnikov <temnota.am@gmail.com>
---

diff --git a/ip/iprule.c b/ip/iprule.c
index 8f242067f..70562c553 100644
--- a/ip/iprule.c
+++ b/ip/iprule.c
@@ -346,6 +346,11 @@ static int iprule_modify(int cmd, int argc, char **argv)
 		req.r.rtm_type = RTN_UNICAST;
 	}
 
+	if (cmd == RTM_DELRULE && argc == 0) {
+		fprintf(stderr, "\"ip rule del\" requires arguments.\n");
+		return -1;
+	}
+
 	while (argc > 0) {
 		if (strcmp(*argv, "not") == 0) {
 			req.r.rtm_flags |= FIB_RULE_INVERT;