[PATCH v2 08/22] app/test-mldev: 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.

Cc: sta...@dpdk.org

Signed-off-by: Jie Hai <haij...@huawei.com>
Acked-by: Chengwen Feng <fengcheng...@huawei.com>
---
 app/test-mldev/ml_options.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/app/test-mldev/ml_options.c b/app/test-mldev/ml_options.c
index 72357c1c393d..3e93a8b7356c 100644
--- a/app/test-mldev/ml_options.c
+++ b/app/test-mldev/ml_options.c
@@ -75,12 +75,12 @@ ml_parse_models(struct ml_options *opt, const char *arg)
 {
        const char *delim = ",";
        char models[PATH_MAX];
-       char *token;
+       char *token, *sp = NULL;
        int ret = 0;
 
        strlcpy(models, arg, PATH_MAX);
 
-       token = strtok(models, delim);
+       token = strtok_s(models, delim, &sp);
        while (token != NULL) {
                strlcpy(opt->filelist[opt->nb_filelist].model, token, PATH_MAX);
                opt->nb_filelist++;
@@ -90,7 +90,7 @@ ml_parse_models(struct ml_options *opt, const char *arg)
                        ret = -EINVAL;
                        break;
                }
-               token = strtok(NULL, delim);
+               token = strtok_s(NULL, delim, &sp);
        }
 
        if (opt->nb_filelist == 0) {
@@ -106,7 +106,7 @@ ml_parse_filelist(struct ml_options *opt, const char *arg)
 {
        const char *delim = ",";
        char filelist[PATH_MAX];
-       char *token;
+       char *token, *sp = NULL;
 
        if (opt->nb_filelist >= ML_TEST_MAX_MODELS) {
                ml_err("Exceeded filelist count, max = %d\n", 
ML_TEST_MAX_MODELS);
@@ -116,7 +116,7 @@ ml_parse_filelist(struct ml_options *opt, const char *arg)
        strlcpy(filelist, arg, PATH_MAX);
 
        /* model */
-       token = strtok(filelist, delim);
+       token = strtok_s(filelist, delim, &sp);
        if (token == NULL) {
                ml_err("Invalid filelist, model not specified = %s\n", arg);
                return -EINVAL;
@@ -124,7 +124,7 @@ ml_parse_filelist(struct ml_options *opt, const char *arg)
        strlcpy(opt->filelist[opt->nb_filelist].model, token, PATH_MAX);
 
        /* input */
-       token = strtok(NULL, delim);
+       token = strtok_s(NULL, delim, &sp);
        if (token == NULL) {
                ml_err("Invalid filelist, input not specified = %s\n", arg);
                return -EINVAL;
@@ -132,7 +132,7 @@ ml_parse_filelist(struct ml_options *opt, const char *arg)
        strlcpy(opt->filelist[opt->nb_filelist].input, token, PATH_MAX);
 
        /* output */
-       token = strtok(NULL, delim);
+       token = strtok_s(NULL, delim, &sp);
        if (token == NULL) {
                ml_err("Invalid filelist, output not specified = %s\n", arg);
                return -EINVAL;
@@ -140,14 +140,14 @@ ml_parse_filelist(struct ml_options *opt, const char *arg)
        strlcpy(opt->filelist[opt->nb_filelist].output, token, PATH_MAX);
 
        /* reference - optional */
-       token = strtok(NULL, delim);
+       token = strtok_s(NULL, delim, &sp);
        if (token != NULL)
                strlcpy(opt->filelist[opt->nb_filelist].reference, token, 
PATH_MAX);
        else
                memset(opt->filelist[opt->nb_filelist].reference, 0, PATH_MAX);
 
        /* check for extra tokens */
-       token = strtok(NULL, delim);
+       token = strtok_s(NULL, delim, &sp);
        if (token != NULL) {
                ml_err("Invalid filelist. Entries > 4\n.");
                return -EINVAL;
-- 
2.30.0