1*de0e0e4dSAntonio Huete Jimenez /* $OpenBSD: eck_prn.c,v 1.17 2021/04/20 17:12:43 tb Exp $ */
2f5b1c8a1SJohn Marino /*
3f5b1c8a1SJohn Marino * Written by Nils Larsch for the OpenSSL project.
4f5b1c8a1SJohn Marino */
5f5b1c8a1SJohn Marino /* ====================================================================
6f5b1c8a1SJohn Marino * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
7f5b1c8a1SJohn Marino *
8f5b1c8a1SJohn Marino * Redistribution and use in source and binary forms, with or without
9f5b1c8a1SJohn Marino * modification, are permitted provided that the following conditions
10f5b1c8a1SJohn Marino * are met:
11f5b1c8a1SJohn Marino *
12f5b1c8a1SJohn Marino * 1. Redistributions of source code must retain the above copyright
13f5b1c8a1SJohn Marino * notice, this list of conditions and the following disclaimer.
14f5b1c8a1SJohn Marino *
15f5b1c8a1SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright
16f5b1c8a1SJohn Marino * notice, this list of conditions and the following disclaimer in
17f5b1c8a1SJohn Marino * the documentation and/or other materials provided with the
18f5b1c8a1SJohn Marino * distribution.
19f5b1c8a1SJohn Marino *
20f5b1c8a1SJohn Marino * 3. All advertising materials mentioning features or use of this
21f5b1c8a1SJohn Marino * software must display the following acknowledgment:
22f5b1c8a1SJohn Marino * "This product includes software developed by the OpenSSL Project
23f5b1c8a1SJohn Marino * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24f5b1c8a1SJohn Marino *
25f5b1c8a1SJohn Marino * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26f5b1c8a1SJohn Marino * endorse or promote products derived from this software without
27f5b1c8a1SJohn Marino * prior written permission. For written permission, please contact
28f5b1c8a1SJohn Marino * openssl-core@openssl.org.
29f5b1c8a1SJohn Marino *
30f5b1c8a1SJohn Marino * 5. Products derived from this software may not be called "OpenSSL"
31f5b1c8a1SJohn Marino * nor may "OpenSSL" appear in their names without prior written
32f5b1c8a1SJohn Marino * permission of the OpenSSL Project.
33f5b1c8a1SJohn Marino *
34f5b1c8a1SJohn Marino * 6. Redistributions of any form whatsoever must retain the following
35f5b1c8a1SJohn Marino * acknowledgment:
36f5b1c8a1SJohn Marino * "This product includes software developed by the OpenSSL Project
37f5b1c8a1SJohn Marino * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38f5b1c8a1SJohn Marino *
39f5b1c8a1SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40f5b1c8a1SJohn Marino * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41f5b1c8a1SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42f5b1c8a1SJohn Marino * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43f5b1c8a1SJohn Marino * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44f5b1c8a1SJohn Marino * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45f5b1c8a1SJohn Marino * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46f5b1c8a1SJohn Marino * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47f5b1c8a1SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48f5b1c8a1SJohn Marino * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49f5b1c8a1SJohn Marino * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50f5b1c8a1SJohn Marino * OF THE POSSIBILITY OF SUCH DAMAGE.
51f5b1c8a1SJohn Marino * ====================================================================
52f5b1c8a1SJohn Marino *
53f5b1c8a1SJohn Marino * This product includes cryptographic software written by Eric Young
54f5b1c8a1SJohn Marino * (eay@cryptsoft.com). This product includes software written by Tim
55f5b1c8a1SJohn Marino * Hudson (tjh@cryptsoft.com).
56f5b1c8a1SJohn Marino *
57f5b1c8a1SJohn Marino */
58f5b1c8a1SJohn Marino /* ====================================================================
59f5b1c8a1SJohn Marino * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
60f5b1c8a1SJohn Marino * Portions originally developed by SUN MICROSYSTEMS, INC., and
61f5b1c8a1SJohn Marino * contributed to the OpenSSL project.
62f5b1c8a1SJohn Marino */
63f5b1c8a1SJohn Marino
64f5b1c8a1SJohn Marino #include <stdio.h>
65f5b1c8a1SJohn Marino #include <string.h>
66f5b1c8a1SJohn Marino
67f5b1c8a1SJohn Marino #include <openssl/bn.h>
68f5b1c8a1SJohn Marino #include <openssl/ec.h>
69f5b1c8a1SJohn Marino #include <openssl/err.h>
70f5b1c8a1SJohn Marino #include <openssl/evp.h>
71f5b1c8a1SJohn Marino
72f5b1c8a1SJohn Marino int
ECPKParameters_print_fp(FILE * fp,const EC_GROUP * x,int off)73f5b1c8a1SJohn Marino ECPKParameters_print_fp(FILE * fp, const EC_GROUP * x, int off)
74f5b1c8a1SJohn Marino {
75f5b1c8a1SJohn Marino BIO *b;
76f5b1c8a1SJohn Marino int ret;
77f5b1c8a1SJohn Marino
78f5b1c8a1SJohn Marino if ((b = BIO_new(BIO_s_file())) == NULL) {
7972c33676SMaxim Ag ECerror(ERR_R_BUF_LIB);
80f5b1c8a1SJohn Marino return (0);
81f5b1c8a1SJohn Marino }
82f5b1c8a1SJohn Marino BIO_set_fp(b, fp, BIO_NOCLOSE);
83f5b1c8a1SJohn Marino ret = ECPKParameters_print(b, x, off);
84f5b1c8a1SJohn Marino BIO_free(b);
85f5b1c8a1SJohn Marino return (ret);
86f5b1c8a1SJohn Marino }
87f5b1c8a1SJohn Marino
88f5b1c8a1SJohn Marino int
EC_KEY_print_fp(FILE * fp,const EC_KEY * x,int off)89f5b1c8a1SJohn Marino EC_KEY_print_fp(FILE * fp, const EC_KEY * x, int off)
90f5b1c8a1SJohn Marino {
91f5b1c8a1SJohn Marino BIO *b;
92f5b1c8a1SJohn Marino int ret;
93f5b1c8a1SJohn Marino
94f5b1c8a1SJohn Marino if ((b = BIO_new(BIO_s_file())) == NULL) {
9572c33676SMaxim Ag ECerror(ERR_R_BIO_LIB);
96f5b1c8a1SJohn Marino return (0);
97f5b1c8a1SJohn Marino }
98f5b1c8a1SJohn Marino BIO_set_fp(b, fp, BIO_NOCLOSE);
99f5b1c8a1SJohn Marino ret = EC_KEY_print(b, x, off);
100f5b1c8a1SJohn Marino BIO_free(b);
101f5b1c8a1SJohn Marino return (ret);
102f5b1c8a1SJohn Marino }
103f5b1c8a1SJohn Marino
104f5b1c8a1SJohn Marino int
ECParameters_print_fp(FILE * fp,const EC_KEY * x)105f5b1c8a1SJohn Marino ECParameters_print_fp(FILE * fp, const EC_KEY * x)
106f5b1c8a1SJohn Marino {
107f5b1c8a1SJohn Marino BIO *b;
108f5b1c8a1SJohn Marino int ret;
109f5b1c8a1SJohn Marino
110f5b1c8a1SJohn Marino if ((b = BIO_new(BIO_s_file())) == NULL) {
11172c33676SMaxim Ag ECerror(ERR_R_BIO_LIB);
112f5b1c8a1SJohn Marino return (0);
113f5b1c8a1SJohn Marino }
114f5b1c8a1SJohn Marino BIO_set_fp(b, fp, BIO_NOCLOSE);
115f5b1c8a1SJohn Marino ret = ECParameters_print(b, x);
116f5b1c8a1SJohn Marino BIO_free(b);
117f5b1c8a1SJohn Marino return (ret);
118f5b1c8a1SJohn Marino }
119f5b1c8a1SJohn Marino
120f5b1c8a1SJohn Marino int
EC_KEY_print(BIO * bp,const EC_KEY * x,int off)121f5b1c8a1SJohn Marino EC_KEY_print(BIO * bp, const EC_KEY * x, int off)
122f5b1c8a1SJohn Marino {
123f5b1c8a1SJohn Marino EVP_PKEY *pk;
124f5b1c8a1SJohn Marino int ret;
125f5b1c8a1SJohn Marino pk = EVP_PKEY_new();
126f5b1c8a1SJohn Marino if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *) x))
127f5b1c8a1SJohn Marino return 0;
128f5b1c8a1SJohn Marino ret = EVP_PKEY_print_private(bp, pk, off, NULL);
129f5b1c8a1SJohn Marino EVP_PKEY_free(pk);
130f5b1c8a1SJohn Marino return ret;
131f5b1c8a1SJohn Marino }
132f5b1c8a1SJohn Marino
133f5b1c8a1SJohn Marino int
ECParameters_print(BIO * bp,const EC_KEY * x)134f5b1c8a1SJohn Marino ECParameters_print(BIO * bp, const EC_KEY * x)
135f5b1c8a1SJohn Marino {
136f5b1c8a1SJohn Marino EVP_PKEY *pk;
137f5b1c8a1SJohn Marino int ret;
138f5b1c8a1SJohn Marino pk = EVP_PKEY_new();
139f5b1c8a1SJohn Marino if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *) x))
140f5b1c8a1SJohn Marino return 0;
141f5b1c8a1SJohn Marino ret = EVP_PKEY_print_params(bp, pk, 4, NULL);
142f5b1c8a1SJohn Marino EVP_PKEY_free(pk);
143f5b1c8a1SJohn Marino return ret;
144f5b1c8a1SJohn Marino }
145f5b1c8a1SJohn Marino
146f5b1c8a1SJohn Marino static int
147f5b1c8a1SJohn Marino print_bin(BIO * fp, const char *str, const unsigned char *num,
148f5b1c8a1SJohn Marino size_t len, int off);
149f5b1c8a1SJohn Marino
150f5b1c8a1SJohn Marino int
ECPKParameters_print(BIO * bp,const EC_GROUP * x,int off)151f5b1c8a1SJohn Marino ECPKParameters_print(BIO * bp, const EC_GROUP * x, int off)
152f5b1c8a1SJohn Marino {
153f5b1c8a1SJohn Marino unsigned char *buffer = NULL;
154f5b1c8a1SJohn Marino size_t buf_len = 0, i;
155f5b1c8a1SJohn Marino int ret = 0, reason = ERR_R_BIO_LIB;
156f5b1c8a1SJohn Marino BN_CTX *ctx = NULL;
157f5b1c8a1SJohn Marino const EC_POINT *point = NULL;
158f5b1c8a1SJohn Marino BIGNUM *p = NULL, *a = NULL, *b = NULL, *gen = NULL, *order = NULL,
159f5b1c8a1SJohn Marino *cofactor = NULL;
160f5b1c8a1SJohn Marino const unsigned char *seed;
161f5b1c8a1SJohn Marino size_t seed_len = 0;
162f5b1c8a1SJohn Marino const char *nname;
163f5b1c8a1SJohn Marino
164f5b1c8a1SJohn Marino static const char *gen_compressed = "Generator (compressed):";
165f5b1c8a1SJohn Marino static const char *gen_uncompressed = "Generator (uncompressed):";
166f5b1c8a1SJohn Marino static const char *gen_hybrid = "Generator (hybrid):";
167f5b1c8a1SJohn Marino
168f5b1c8a1SJohn Marino if (!x) {
169f5b1c8a1SJohn Marino reason = ERR_R_PASSED_NULL_PARAMETER;
170f5b1c8a1SJohn Marino goto err;
171f5b1c8a1SJohn Marino }
172f5b1c8a1SJohn Marino ctx = BN_CTX_new();
173f5b1c8a1SJohn Marino if (ctx == NULL) {
174f5b1c8a1SJohn Marino reason = ERR_R_MALLOC_FAILURE;
175f5b1c8a1SJohn Marino goto err;
176f5b1c8a1SJohn Marino }
177f5b1c8a1SJohn Marino if (EC_GROUP_get_asn1_flag(x)) {
178f5b1c8a1SJohn Marino /* the curve parameter are given by an asn1 OID */
179f5b1c8a1SJohn Marino int nid;
180f5b1c8a1SJohn Marino
181f5b1c8a1SJohn Marino if (!BIO_indent(bp, off, 128))
182f5b1c8a1SJohn Marino goto err;
183f5b1c8a1SJohn Marino
184f5b1c8a1SJohn Marino nid = EC_GROUP_get_curve_name(x);
185f5b1c8a1SJohn Marino if (nid == 0)
186f5b1c8a1SJohn Marino goto err;
187f5b1c8a1SJohn Marino
188f5b1c8a1SJohn Marino if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
189f5b1c8a1SJohn Marino goto err;
190f5b1c8a1SJohn Marino if (BIO_printf(bp, "\n") <= 0)
191f5b1c8a1SJohn Marino goto err;
192f5b1c8a1SJohn Marino
193f5b1c8a1SJohn Marino nname = EC_curve_nid2nist(nid);
194f5b1c8a1SJohn Marino if (nname) {
195f5b1c8a1SJohn Marino if (!BIO_indent(bp, off, 128))
196f5b1c8a1SJohn Marino goto err;
197f5b1c8a1SJohn Marino if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 0)
198f5b1c8a1SJohn Marino goto err;
199f5b1c8a1SJohn Marino }
200f5b1c8a1SJohn Marino } else {
201f5b1c8a1SJohn Marino /* explicit parameters */
202f5b1c8a1SJohn Marino int is_char_two = 0;
203f5b1c8a1SJohn Marino point_conversion_form_t form;
204f5b1c8a1SJohn Marino int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
205f5b1c8a1SJohn Marino
206f5b1c8a1SJohn Marino if (tmp_nid == NID_X9_62_characteristic_two_field)
207f5b1c8a1SJohn Marino is_char_two = 1;
208f5b1c8a1SJohn Marino
209f5b1c8a1SJohn Marino if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
210f5b1c8a1SJohn Marino (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
211f5b1c8a1SJohn Marino (cofactor = BN_new()) == NULL) {
212f5b1c8a1SJohn Marino reason = ERR_R_MALLOC_FAILURE;
213f5b1c8a1SJohn Marino goto err;
214f5b1c8a1SJohn Marino }
215*de0e0e4dSAntonio Huete Jimenez if (!EC_GROUP_get_curve(x, p, a, b, ctx)) {
216f5b1c8a1SJohn Marino reason = ERR_R_EC_LIB;
217f5b1c8a1SJohn Marino goto err;
218f5b1c8a1SJohn Marino }
219f5b1c8a1SJohn Marino
220f5b1c8a1SJohn Marino if ((point = EC_GROUP_get0_generator(x)) == NULL) {
221f5b1c8a1SJohn Marino reason = ERR_R_EC_LIB;
222f5b1c8a1SJohn Marino goto err;
223f5b1c8a1SJohn Marino }
224f5b1c8a1SJohn Marino if (!EC_GROUP_get_order(x, order, NULL) ||
225f5b1c8a1SJohn Marino !EC_GROUP_get_cofactor(x, cofactor, NULL)) {
226f5b1c8a1SJohn Marino reason = ERR_R_EC_LIB;
227f5b1c8a1SJohn Marino goto err;
228f5b1c8a1SJohn Marino }
229f5b1c8a1SJohn Marino form = EC_GROUP_get_point_conversion_form(x);
230f5b1c8a1SJohn Marino
231f5b1c8a1SJohn Marino if ((gen = EC_POINT_point2bn(x, point,
232f5b1c8a1SJohn Marino form, NULL, ctx)) == NULL) {
233f5b1c8a1SJohn Marino reason = ERR_R_EC_LIB;
234f5b1c8a1SJohn Marino goto err;
235f5b1c8a1SJohn Marino }
236f5b1c8a1SJohn Marino buf_len = (size_t) BN_num_bytes(p);
237f5b1c8a1SJohn Marino if (buf_len < (i = (size_t) BN_num_bytes(a)))
238f5b1c8a1SJohn Marino buf_len = i;
239f5b1c8a1SJohn Marino if (buf_len < (i = (size_t) BN_num_bytes(b)))
240f5b1c8a1SJohn Marino buf_len = i;
241f5b1c8a1SJohn Marino if (buf_len < (i = (size_t) BN_num_bytes(gen)))
242f5b1c8a1SJohn Marino buf_len = i;
243f5b1c8a1SJohn Marino if (buf_len < (i = (size_t) BN_num_bytes(order)))
244f5b1c8a1SJohn Marino buf_len = i;
245f5b1c8a1SJohn Marino if (buf_len < (i = (size_t) BN_num_bytes(cofactor)))
246f5b1c8a1SJohn Marino buf_len = i;
247f5b1c8a1SJohn Marino
248f5b1c8a1SJohn Marino if ((seed = EC_GROUP_get0_seed(x)) != NULL)
249f5b1c8a1SJohn Marino seed_len = EC_GROUP_get_seed_len(x);
250f5b1c8a1SJohn Marino
251f5b1c8a1SJohn Marino buf_len += 10;
252f5b1c8a1SJohn Marino if ((buffer = malloc(buf_len)) == NULL) {
253f5b1c8a1SJohn Marino reason = ERR_R_MALLOC_FAILURE;
254f5b1c8a1SJohn Marino goto err;
255f5b1c8a1SJohn Marino }
256f5b1c8a1SJohn Marino if (!BIO_indent(bp, off, 128))
257f5b1c8a1SJohn Marino goto err;
258f5b1c8a1SJohn Marino
259f5b1c8a1SJohn Marino /* print the 'short name' of the field type */
260f5b1c8a1SJohn Marino if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
261f5b1c8a1SJohn Marino <= 0)
262f5b1c8a1SJohn Marino goto err;
263f5b1c8a1SJohn Marino
264f5b1c8a1SJohn Marino if (is_char_two) {
265f5b1c8a1SJohn Marino /* print the 'short name' of the base type OID */
266f5b1c8a1SJohn Marino int basis_type = EC_GROUP_get_basis_type(x);
267f5b1c8a1SJohn Marino if (basis_type == 0)
268f5b1c8a1SJohn Marino goto err;
269f5b1c8a1SJohn Marino
270f5b1c8a1SJohn Marino if (!BIO_indent(bp, off, 128))
271f5b1c8a1SJohn Marino goto err;
272f5b1c8a1SJohn Marino
273f5b1c8a1SJohn Marino if (BIO_printf(bp, "Basis Type: %s\n",
274f5b1c8a1SJohn Marino OBJ_nid2sn(basis_type)) <= 0)
275f5b1c8a1SJohn Marino goto err;
276f5b1c8a1SJohn Marino
277f5b1c8a1SJohn Marino /* print the polynomial */
278f5b1c8a1SJohn Marino if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p, buffer,
279f5b1c8a1SJohn Marino off))
280f5b1c8a1SJohn Marino goto err;
281f5b1c8a1SJohn Marino } else {
282f5b1c8a1SJohn Marino if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, buffer, off))
283f5b1c8a1SJohn Marino goto err;
284f5b1c8a1SJohn Marino }
285f5b1c8a1SJohn Marino if ((a != NULL) && !ASN1_bn_print(bp, "A: ", a, buffer, off))
286f5b1c8a1SJohn Marino goto err;
287f5b1c8a1SJohn Marino if ((b != NULL) && !ASN1_bn_print(bp, "B: ", b, buffer, off))
288f5b1c8a1SJohn Marino goto err;
289f5b1c8a1SJohn Marino if (form == POINT_CONVERSION_COMPRESSED) {
290f5b1c8a1SJohn Marino if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed, gen,
291f5b1c8a1SJohn Marino buffer, off))
292f5b1c8a1SJohn Marino goto err;
293f5b1c8a1SJohn Marino } else if (form == POINT_CONVERSION_UNCOMPRESSED) {
294f5b1c8a1SJohn Marino if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed, gen,
295f5b1c8a1SJohn Marino buffer, off))
296f5b1c8a1SJohn Marino goto err;
297f5b1c8a1SJohn Marino } else { /* form == POINT_CONVERSION_HYBRID */
298f5b1c8a1SJohn Marino if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen,
299f5b1c8a1SJohn Marino buffer, off))
300f5b1c8a1SJohn Marino goto err;
301f5b1c8a1SJohn Marino }
302f5b1c8a1SJohn Marino if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order,
303f5b1c8a1SJohn Marino buffer, off))
304f5b1c8a1SJohn Marino goto err;
305f5b1c8a1SJohn Marino if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor,
306f5b1c8a1SJohn Marino buffer, off))
307f5b1c8a1SJohn Marino goto err;
308f5b1c8a1SJohn Marino if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
309f5b1c8a1SJohn Marino goto err;
310f5b1c8a1SJohn Marino }
311f5b1c8a1SJohn Marino ret = 1;
312f5b1c8a1SJohn Marino err:
313f5b1c8a1SJohn Marino if (!ret)
31472c33676SMaxim Ag ECerror(reason);
315f5b1c8a1SJohn Marino BN_free(p);
316f5b1c8a1SJohn Marino BN_free(a);
317f5b1c8a1SJohn Marino BN_free(b);
318f5b1c8a1SJohn Marino BN_free(gen);
319f5b1c8a1SJohn Marino BN_free(order);
320f5b1c8a1SJohn Marino BN_free(cofactor);
321f5b1c8a1SJohn Marino BN_CTX_free(ctx);
322f5b1c8a1SJohn Marino free(buffer);
323f5b1c8a1SJohn Marino return (ret);
324f5b1c8a1SJohn Marino }
325f5b1c8a1SJohn Marino
326f5b1c8a1SJohn Marino static int
print_bin(BIO * fp,const char * name,const unsigned char * buf,size_t len,int off)327f5b1c8a1SJohn Marino print_bin(BIO * fp, const char *name, const unsigned char *buf,
328f5b1c8a1SJohn Marino size_t len, int off)
329f5b1c8a1SJohn Marino {
330f5b1c8a1SJohn Marino size_t i;
331f5b1c8a1SJohn Marino char str[128];
332f5b1c8a1SJohn Marino
333f5b1c8a1SJohn Marino if (buf == NULL)
334f5b1c8a1SJohn Marino return 1;
335f5b1c8a1SJohn Marino if (off) {
336f5b1c8a1SJohn Marino if (off > 128)
337f5b1c8a1SJohn Marino off = 128;
338f5b1c8a1SJohn Marino memset(str, ' ', off);
339f5b1c8a1SJohn Marino if (BIO_write(fp, str, off) <= 0)
340f5b1c8a1SJohn Marino return 0;
341f5b1c8a1SJohn Marino }
342f5b1c8a1SJohn Marino if (BIO_printf(fp, "%s", name) <= 0)
343f5b1c8a1SJohn Marino return 0;
344f5b1c8a1SJohn Marino
345f5b1c8a1SJohn Marino for (i = 0; i < len; i++) {
346f5b1c8a1SJohn Marino if ((i % 15) == 0) {
347f5b1c8a1SJohn Marino str[0] = '\n';
348f5b1c8a1SJohn Marino memset(&(str[1]), ' ', off + 4);
349f5b1c8a1SJohn Marino if (BIO_write(fp, str, off + 1 + 4) <= 0)
350f5b1c8a1SJohn Marino return 0;
351f5b1c8a1SJohn Marino }
352f5b1c8a1SJohn Marino if (BIO_printf(fp, "%02x%s", buf[i], ((i + 1) == len) ? "" : ":") <= 0)
353f5b1c8a1SJohn Marino return 0;
354f5b1c8a1SJohn Marino }
355f5b1c8a1SJohn Marino if (BIO_write(fp, "\n", 1) <= 0)
356f5b1c8a1SJohn Marino return 0;
357f5b1c8a1SJohn Marino
358f5b1c8a1SJohn Marino return 1;
359f5b1c8a1SJohn Marino }
360