netdev - [PATCH iproute2 v2] iplink_bond: fix parameter value matching

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Date:	Thu, 13 Feb 2014 17:31:59 +0100 (CET)
From:	Michal Kubecek <mkubecek@...e.cz>
To:	Stephen Hemminger <stephen@...workplumber.org>
Cc:	netdev@...r.kernel.org, Ding Tianhong <dingtianhong@...wei.com>
Subject: [PATCH iproute2 v2] iplink_bond: fix parameter value matching

Lookup function get_index() compares argument with table entries
only up to the length of the table entry so that if an entry
with lower index is a substring of a later one, earlier entry is
used even if the argument is equal to the other. For example,

  ip link set bond0 type bond xmit_hash_policy layer2+3

sets xmit_hash_policy to 0 (layer2) as this is found before
"layer2+3" can be checked.

Use strcmp() to compare whole strings instead.

v2: look for an exact match only

Signed-off-by: Michal Kubecek <mkubecek@...e.cz>
---
 ip/iplink_bond.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ip/iplink_bond.c b/ip/iplink_bond.c
index f22151e..7a950df 100644
--- a/ip/iplink_bond.c
+++ b/ip/iplink_bond.c
@@ -106,7 +106,7 @@ static int get_index(const char **tbl, char *name)
 				return i;
 
 	for (i = 0; tbl[i]; i++)
-		if (strncmp(tbl[i], name, strlen(tbl[i])) == 0)
+		if (strcmp(tbl[i], name) == 0)
 			return i;
 
 	return -1;
-- 
1.8.1.4

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