589     FILE *f;  in mbedtls_ctr_drbg_write_seed_file()  local
592     if ((f = fopen(path, "wb")) == NULL) {  in mbedtls_ctr_drbg_write_seed_file()
597     mbedtls_setbuf(f, NULL);  in mbedtls_ctr_drbg_write_seed_file()
604     if (fwrite(buf, 1, MBEDTLS_CTR_DRBG_MAX_INPUT, f) !=  in mbedtls_ctr_drbg_write_seed_file()
614     fclose(f);  in mbedtls_ctr_drbg_write_seed_file()
622     FILE *f = NULL;  in mbedtls_ctr_drbg_update_seed_file()  local
627     if ((f = fopen(path, "rb")) == NULL) {  in mbedtls_ctr_drbg_update_seed_file()
632     mbedtls_setbuf(f, NULL);  in mbedtls_ctr_drbg_update_seed_file()
634     n = fread(buf, 1, sizeof(buf), f);  in mbedtls_ctr_drbg_update_seed_file()
635     if (fread(&c, 1, 1, f) != 0) {  in mbedtls_ctr_drbg_update_seed_file()
639     if (n == 0 || ferror(f)) {  in mbedtls_ctr_drbg_update_seed_file()
643     fclose(f);  in mbedtls_ctr_drbg_update_seed_file()
644     f = NULL;  in mbedtls_ctr_drbg_update_seed_file()
650     if (f != NULL) {  in mbedtls_ctr_drbg_update_seed_file()
651         fclose(f);  in mbedtls_ctr_drbg_update_seed_file()