+ if (m != NULL) OPENSSL_free(m);
+ return(ret);
+ }
+#endif /* !OPENSSL_NO_DSA */
+
+#ifndef OPENSSL_NO_ECDSA
+#ifndef OPENSSL_NO_FP_API
+int ECDSA_print_fp(FILE *fp, const ECDSA *x, int off)
+{
+ BIO *b;
+ int ret;
+
+ if ((b=BIO_new(BIO_s_file())) == NULL)
+ {
+ ECDSAerr(ECDSA_F_ECDSA_PRINT_FP, ERR_R_BIO_LIB);
+ return(0);
+ }
+ BIO_set_fp(b, fp, BIO_NOCLOSE);
+ ret = ECDSA_print(b, x, off);
+ BIO_free(b);
+ return(ret);
+}
+#endif
+
+int ECDSA_print(BIO *bp, const ECDSA *x, int off)
+ {
+ char str[128];
+ unsigned char *buffer=NULL;
+ int i, buf_len=0, ret=0, reason=ERR_R_BIO_LIB;
+ BIGNUM *tmp_1=NULL, *tmp_2=NULL, *tmp_3=NULL,
+ *tmp_4=NULL, *tmp_5=NULL;
+ BN_CTX *ctx=NULL;
+ EC_POINT *point=NULL;
+
+ /* TODO: fields other than prime fields */
+
+ if (!x || !x->group)
+ {
+ reason = ECDSA_R_MISSING_PARAMETERS;
+ goto err;
+ }
+ if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL ||
+ (tmp_3 = BN_new()) == NULL || (ctx = BN_CTX_new()) == NULL)
+ {
+ reason = ERR_R_MALLOC_FAILURE;
+ goto err;
+ }
+ if (!EC_GROUP_get_curve_GFp(x->group, tmp_1, tmp_2, tmp_3, ctx))
+ {
+ reason = ERR_R_EC_LIB;
+ goto err;
+ }
+ if ((point = EC_GROUP_get0_generator(x->group)) == NULL)
+ {
+ reason = ERR_R_EC_LIB;
+ goto err;
+ }
+ if ((buf_len = EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx)) == 0)
+ {
+ reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
+ goto err;
+ }
+ if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
+ {
+ reason = ERR_R_MALLOC_FAILURE;
+ goto err;
+ }
+ if (!EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED,
+ buffer, buf_len, ctx)) goto err;
+ if ((tmp_4 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
+ {
+ reason = ERR_R_BN_LIB;
+ goto err;
+ }
+ if ((i = EC_POINT_point2oct(x->group, x->pub_key, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx)) == 0)
+ {
+ reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
+ goto err;
+ }
+ if (i > buf_len && (buffer = OPENSSL_realloc(buffer, i)) == NULL)
+ {
+ reason = ERR_R_MALLOC_FAILURE;
+ buf_len = i;
+ goto err;
+ }
+ if (!EC_POINT_point2oct(x->group, x->pub_key, POINT_CONVERSION_COMPRESSED,
+ buffer, buf_len, ctx))
+ {
+ reason = ERR_R_EC_LIB;
+ goto err;
+ }
+ if ((tmp_5 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
+ {
+ reason = ERR_R_BN_LIB;
+ goto err;
+ }
+ if (tmp_1 != NULL)
+ i = BN_num_bytes(tmp_1)*2;
+ else
+ i=256;
+ if ((i + 10) > buf_len && (buffer = OPENSSL_realloc(buffer, i+10)) == NULL)
+ {
+ reason = ERR_R_MALLOC_FAILURE;
+ buf_len = i;
+ goto err;
+ }
+ if (off)
+ {
+ if (off > 128) off=128;
+ memset(str,' ',off);
+ }
+ if (x->priv_key != NULL)
+ {
+ if (off && (BIO_write(bp, str, off) <= 0)) goto err;
+ if (BIO_printf(bp, "Private-Key: (%d bit)\n", BN_num_bits(tmp_1)) <= 0) goto err;
+ }
+
+ if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key, buffer, off)) goto err;
+ if ((tmp_5 != NULL) && !print(bp, "pub: ", tmp_5, buffer, off)) goto err;
+ if ((tmp_1 != NULL) && !print(bp, "P: ", tmp_1, buffer, off)) goto err;
+ if ((tmp_2 != NULL) && !print(bp, "A: ", tmp_2, buffer, off)) goto err;
+ if ((tmp_3 != NULL) && !print(bp, "B: ", tmp_3, buffer, off)) goto err;
+ if ((tmp_4 != NULL) && !print(bp, "Gen: ", tmp_4, buffer, off)) goto err;
+ ret=1;
+err:
+ if (!ret)
+ ECDSAerr(ECDSA_F_ECDSA_PRINT, reason);
+ if (tmp_1) BN_free(tmp_1);
+ if (tmp_2) BN_free(tmp_2);
+ if (tmp_3) BN_free(tmp_3);
+ if (tmp_4) BN_free(tmp_4);
+ if (tmp_5) BN_free(tmp_5);
+ if (ctx) BN_CTX_free(ctx);
+ if (buffer != NULL) OPENSSL_free(buffer);