[PATCH v2 20/22] examples/l2fwd-crypto: replace strtok with reentrant version

[Jie Hai]

Multiple threads calling the same function may cause condition
race issues, which often leads to abnormal behavior and can cause
more serious vulnerabilities such as abnormal termination, denial
of service, and compromised data integrity.

The strtok() is non-reentrant, it is better to replace it with a
reentrant version.

Fixes: ff5d5b01f8f2 ("examples/l2fwd-crypto: support AES-CCM")
Cc: stable at dpdk.org

Signed-off-by: Jie Hai <haijie1 at huawei.com>
Acked-by: Chengwen Feng <fengchengwen at huawei.com>
---
 examples/l2fwd-crypto/main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index efe7eea2a768..7327ff1128df 100644
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -1105,12 +1105,12 @@ static int
 parse_bytes(uint8_t *data, char *input_arg, uint16_t max_size)
 {
 	unsigned byte_count;
-	char *token;
+	char *token, *sp = NULL;
 
 	errno = 0;
-	for (byte_count = 0, token = strtok(input_arg, ":");
+	for (byte_count = 0, token = strtok_s(input_arg, ":", &sp);
 			(byte_count < max_size) && (token != NULL);
-			token = strtok(NULL, ":")) {
+			token = strtok_s(NULL, ":", &sp)) {
 
 		int number = (int)strtol(token, NULL, 16);
 
-- 
2.30.0