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tipc: use destination length for copy string

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Got below warning with gcc 8.2 compiler.

net/tipc/topsrv.c: In function ‘tipc_topsrv_start’:
net/tipc/topsrv.c:660:2: warning: ‘strncpy’ specified bound depends on the length of the source argument [-Wstringop-overflow=]
  strncpy(srv->name, name, strlen(name) + 1);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/tipc/topsrv.c:660:27: note: length computed here
  strncpy(srv->name, name, strlen(name) + 1);
                           ^~~~~~~~~~~~
So change it to correct length and use strscpy.

Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Guoqing Jiang 2018-10-19 12:08:22 +08:00 committed by David S. Miller
parent a1930a9877
commit 29e270fc32
1 changed files with 1 additions and 1 deletions
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2
net/tipc/topsrv.c
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@ -651,7 +651,7 @@ int tipc_topsrv_start(struct net *net)
srv->max_rcvbuf_size = sizeof(struct tipc_subscr);
INIT_WORK(&srv->awork, tipc_topsrv_accept);
strncpy(srv->name, name, strlen(name) + 1);
strscpy(srv->name, name, sizeof(srv->name));
tn->topsrv = srv;
atomic_set(&tn->subscription_count, 0);