[PATCH 20/21] examples/l2fwd-crypto: replace strtok with strtok_r

[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 function.

Signed-off-by: Jie Hai <haijie1 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..06e296776b95 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_r(input_arg, ":", &sp);
 			(byte_count < max_size) && (token != NULL);
-			token = strtok(NULL, ":")) {
+			token = strtok_r(NULL, ":", &sp)) {
 
 		int number = (int)strtol(token, NULL, 16);
 
-- 
2.30.0