===================================================================
@@ -0,0 +1,68 @@
+/* PR target/53886 */
+typedef struct asn1_string_st ASN1_BIT_STRING;
+typedef struct bignum_st BIGNUM;
+typedef struct ec_group_st EC_GROUP;
+typedef struct ec_key_st EC_KEY;
+
+struct ec_key_st
+{
+ EC_GROUP *group;
+ BIGNUM *priv_key;
+ unsigned int enc_flag;
+}
+X9_62_PENTANOMIAL;
+typedef struct ec_privatekey_st
+{
+ ASN1_BIT_STRING *publicKey;
+}
+EC_PRIVATEKEY;
+
+extern EC_PRIVATEKEY* EC_PRIVATEKEY_new (void);
+extern void EC_PRIVATEKEY_free (EC_PRIVATEKEY*);
+extern unsigned char* CRYPTO_realloc (char*,int,const char*,int);
+
+int
+i2d_ECPrivateKey (EC_KEY * a, unsigned char **out)
+{
+ int ret = 0, ok = 0;
+ unsigned char *buffer = 0;
+ unsigned buf_len = 0, tmp_len;
+ EC_PRIVATEKEY *priv_key = 0;
+ if (a == 0 || a->group == 0 || a->priv_key == 0)
+ {
+ ERR_put_error (16, (192), ((3 | 64)),
+ "",
+ 1234);
+ goto err;
+ }
+ if ((priv_key = EC_PRIVATEKEY_new ()) == 0)
+ {
+ ERR_put_error (16, (192), ((1 | 64)),
+ "",
+ 1241);
+ goto err;
+ }
+ if (!(a->enc_flag & 0x002))
+ {
+ if (priv_key->publicKey == 0)
+ {
+ goto err;
+ }
+ if (tmp_len > buf_len)
+ {
+ unsigned char *tmp_buffer =
+ CRYPTO_realloc ((char *) buffer, (int) tmp_len, "", 1293);
+ buffer = tmp_buffer;
+ }
+ }
+ if ((ret = i2d_EC_PRIVATEKEY (priv_key, out)) == 0)
+ {
+ }
+ ok = 1;
+err:
+ if (buffer)
+ CRYPTO_free (buffer);
+ if (priv_key)
+ EC_PRIVATEKEY_free (priv_key);
+ return (ok ? ret : 0);
+}