[PATCH v2] crypto/openssl: fix warning on copy length

[Ruifeng Wang]

When building with gcc 11.2.0, the compiler warns as follows:
In function 'memcpy',
    inlined from 'openssl_set_session_auth_parameters' at ../drivers/crypto/openssl/rte_openssl_pmd.c:699:3,
    inlined from 'openssl_set_session_parameters' at ../drivers/crypto/openssl/rte_openssl_pmd.c:826:9:
/usr/include/aarch64-linux-gnu/bits/string_fortified.h:29:10: warning: '__builtin_memcpy' forming offset [4, 8] is out of the bounds [0, 4] [-Warray-bounds]

Fixed the warning by copying up to string / buffer size.

Fixes: 75adf1eae44f ("crypto/openssl: update HMAC routine with 3.0 EVP API")
Cc: stable at dpdk.org
Cc: kai.ji at intel.com

Signed-off-by: Ruifeng Wang <ruifeng.wang at arm.com>
Reviewed-by: Feifei Wang <feifei.wang2 at arm.com>
---
 drivers/crypto/openssl/rte_openssl_pmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/openssl/rte_openssl_pmd.c b/drivers/crypto/openssl/rte_openssl_pmd.c
index 05449b6e98..abcb641a44 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd.c
@@ -696,7 +696,7 @@ openssl_set_session_auth_parameters(struct openssl_session *sess,
 		algo = digest_name_get(xform->auth.algo);
 		if (!algo)
 			return -EINVAL;
-		rte_memcpy(algo_name, algo, (sizeof(algo)+1));
+		strlcpy(algo_name, algo, sizeof(algo_name));
 
 		mac = EVP_MAC_fetch(NULL, "HMAC", NULL);
 		sess->auth.hmac.ctx = EVP_MAC_CTX_new(mac);
-- 
2.25.1