1 files changed, 15 insertions, 14 deletions

diff --git a/test/core/security/fetch_oauth2.cc b/test/core/security/fetch_oauth2.cc
index fa8036e581..cb28a0487c 100644
--- a/test/core/security/fetch_oauth2.cc
+++ b/test/core/security/fetch_oauth2.cc
@@ -38,16 +38,16 @@ static grpc_call_credentials* create_refresh_token_creds(
       "load_file",
       grpc_load_file(json_refresh_token_file_path, 1, &refresh_token)));
   return grpc_google_refresh_token_credentials_create(
-      (const char*)GRPC_SLICE_START_PTR(refresh_token), NULL);
+      (const char*)GRPC_SLICE_START_PTR(refresh_token), nullptr);
 }
 
 int main(int argc, char** argv) {
-  grpc_call_credentials* creds = NULL;
-  char* json_key_file_path = NULL;
-  const char* json_refresh_token_file_path = NULL;
-  char* token = NULL;
+  grpc_call_credentials* creds = nullptr;
+  char* json_key_file_path = nullptr;
+  const char* json_refresh_token_file_path = nullptr;
+  char* token = nullptr;
   int use_gce = 0;
-  char* scope = NULL;
+  char* scope = nullptr;
   gpr_cmdline* cl = gpr_cmdline_create("fetch_oauth2");
   gpr_cmdline_add_string(cl, "json_refresh_token",
                          "File path of the json refresh token.",
@@ -60,26 +60,27 @@ int main(int argc, char** argv) {
 
   grpc_init();
 
-  if (json_key_file_path != NULL && json_refresh_token_file_path != NULL) {
+  if (json_key_file_path != nullptr &&
+      json_refresh_token_file_path != nullptr) {
     gpr_log(GPR_ERROR,
             "--json_key and --json_refresh_token are mutually exclusive.");
     exit(1);
   }
 
   if (use_gce) {
-    if (json_key_file_path != NULL || scope != NULL) {
+    if (json_key_file_path != nullptr || scope != nullptr) {
       gpr_log(GPR_INFO,
               "Ignoring json key and scope to get a token from the GCE "
               "metadata server.");
     }
-    creds = grpc_google_compute_engine_credentials_create(NULL);
-    if (creds == NULL) {
+    creds = grpc_google_compute_engine_credentials_create(nullptr);
+    if (creds == nullptr) {
       gpr_log(GPR_ERROR, "Could not create gce credentials.");
       exit(1);
     }
-  } else if (json_refresh_token_file_path != NULL) {
+  } else if (json_refresh_token_file_path != nullptr) {
     creds = create_refresh_token_creds(json_refresh_token_file_path);
-    if (creds == NULL) {
+    if (creds == nullptr) {
       gpr_log(GPR_ERROR,
               "Could not create refresh token creds. %s does probably not "
               "contain a valid json refresh token.",
@@ -90,10 +91,10 @@ int main(int argc, char** argv) {
     gpr_log(GPR_ERROR, "Missing --gce or --json_refresh_token option.");
     exit(1);
   }
-  GPR_ASSERT(creds != NULL);
+  GPR_ASSERT(creds != nullptr);
 
   token = grpc_test_fetch_oauth2_token_with_credentials(creds);
-  if (token != NULL) {
+  if (token != nullptr) {
     printf("Got token: %s.\n", token);
     gpr_free(token);
   }