148     size_t len = 0;  in x509write_csr_der_internal()  local
158     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_x509_write_extensions(&c, buf,  in x509write_csr_der_internal()
161     if (len) {  in x509write_csr_der_internal()
162         MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len));  in x509write_csr_der_internal()
163         MBEDTLS_ASN1_CHK_ADD(len,  in x509write_csr_der_internal()
168         MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len));  in x509write_csr_der_internal()
169         MBEDTLS_ASN1_CHK_ADD(len,  in x509write_csr_der_internal()
174         MBEDTLS_ASN1_CHK_ADD(len,  in x509write_csr_der_internal()
179         MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len));  in x509write_csr_der_internal()
180         MBEDTLS_ASN1_CHK_ADD(len,  in x509write_csr_der_internal()
186     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len));  in x509write_csr_der_internal()
187     MBEDTLS_ASN1_CHK_ADD(len,  in x509write_csr_der_internal()
195     len += pub_len;  in x509write_csr_der_internal()
200     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_x509_write_names(&c, buf,  in x509write_csr_der_internal()
206     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_int(&c, buf, 0));  in x509write_csr_der_internal()
208     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len));  in x509write_csr_der_internal()
209     MBEDTLS_ASN1_CHK_ADD(len,  in x509write_csr_der_internal()
221                          len,  in x509write_csr_der_internal()
228     ret = mbedtls_md(mbedtls_md_info_from_type(ctx->md_alg), c, len, hash);  in x509write_csr_der_internal()
256     memmove(buf, c, len);  in x509write_csr_der_internal()
265                          mbedtls_x509_write_sig(&c2, buf + len, sig_oid, sig_oid_len,  in x509write_csr_der_internal()
272     c2 -= len;  in x509write_csr_der_internal()
273     memmove(c2, buf, len);  in x509write_csr_der_internal()
276     len += sig_and_oid_len;  in x509write_csr_der_internal()
277     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c2, buf, len));  in x509write_csr_der_internal()
278     MBEDTLS_ASN1_CHK_ADD(len,  in x509write_csr_der_internal()
286     return (int) len;  in x509write_csr_der_internal()