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tipc: fix -Wstringop-truncation warnings

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Replace strncpy() with strscpy(), fixes the following warning:

In function 'bearer_name_validate',
    inlined from 'tipc_enable_bearer' at net/tipc/bearer.c:246:7:
net/tipc/bearer.c:141:2: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
  strncpy(name_copy, name, TIPC_MAX_BEARER_NAME);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Link: https://lore.kernel.org/r/20201112093442.8132-1-wenlin.kang@windriver.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Wenlin Kang 2020-11-12 17:34:42 +08:00 committed by Jakub Kicinski
parent f8fd36b95e
commit 2f51e5758d
1 changed files with 1 additions and 4 deletions
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5
net/tipc/bearer.c
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@ -139,10 +139,7 @@ static int bearer_name_validate(const char *name,
u32 if_len;
/* copy bearer name & ensure length is OK */
name_copy[TIPC_MAX_BEARER_NAME - 1] = 0;
/* need above in case non-Posix strncpy() doesn't pad with nulls */
strncpy(name_copy, name, TIPC_MAX_BEARER_NAME);
if (name_copy[TIPC_MAX_BEARER_NAME - 1] != 0)
if (strscpy(name_copy, name, TIPC_MAX_BEARER_NAME) < 0)
return 0;
/* ensure all component parts of bearer name are present */