diff options
Diffstat (limited to 'src/core/security/json_token.c')
| -rw-r--r-- | src/core/security/json_token.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/core/security/json_token.c b/src/core/security/json_token.c index c85b0cd847..20d62e2b43 100644 --- a/src/core/security/json_token.c +++ b/src/core/security/json_token.c @@ -206,15 +206,14 @@ static char *encoded_jwt_claim(const grpc_auth_json_key *json_key, char *result = NULL; gpr_timespec now = gpr_now(); gpr_timespec expiration = gpr_time_add(now, token_lifetime); - /* log10(2^64) ~= 20 */ - char now_str[24]; - char expiration_str[24]; + char now_str[GPR_LTOA_MIN_BUFSIZE]; + char expiration_str[GPR_LTOA_MIN_BUFSIZE]; if (gpr_time_cmp(token_lifetime, grpc_max_auth_token_lifetime) > 0) { gpr_log(GPR_INFO, "Cropping token lifetime to maximum allowed value."); expiration = gpr_time_add(now, grpc_max_auth_token_lifetime); } - sprintf(now_str, "%ld", now.tv_sec); - sprintf(expiration_str, "%ld", expiration.tv_sec); + gpr_ltoa(now.tv_sec, now_str); + gpr_ltoa(expiration.tv_sec, expiration_str); child = create_child(NULL, json, "iss", json_key->client_email, GRPC_JSON_STRING); |