xref: /freebsd/crypto/openssl/crypto/ts/ts_lib.c (revision 02e9120893770924227138ba49df1edb3896112a)
1 /*
2  * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9 
10 #include <stdio.h>
11 #include "internal/cryptlib.h"
12 #include <openssl/objects.h>
13 #include <openssl/bn.h>
14 #include <openssl/x509.h>
15 #include <openssl/x509v3.h>
16 #include <openssl/ts.h>
17 #include "ts_local.h"
18 
19 int TS_ASN1_INTEGER_print_bio(BIO *bio, const ASN1_INTEGER *num)
20 {
21     BIGNUM *num_bn;
22     int result = 0;
23     char *hex;
24 
25     num_bn = ASN1_INTEGER_to_BN(num, NULL);
26     if (num_bn == NULL)
27         return -1;
28     if ((hex = BN_bn2hex(num_bn))) {
29         result = BIO_write(bio, "0x", 2) > 0;
30         result = result && BIO_write(bio, hex, strlen(hex)) > 0;
31         OPENSSL_free(hex);
32     }
33     BN_free(num_bn);
34 
35     return result;
36 }
37 
38 int TS_OBJ_print_bio(BIO *bio, const ASN1_OBJECT *obj)
39 {
40     char obj_txt[128];
41 
42     OBJ_obj2txt(obj_txt, sizeof(obj_txt), obj, 0);
43     BIO_printf(bio, "%s\n", obj_txt);
44 
45     return 1;
46 }
47 
48 int TS_ext_print_bio(BIO *bio, const STACK_OF(X509_EXTENSION) *extensions)
49 {
50     int i, critical, n;
51     X509_EXTENSION *ex;
52     ASN1_OBJECT *obj;
53 
54     BIO_printf(bio, "Extensions:\n");
55     n = X509v3_get_ext_count(extensions);
56     for (i = 0; i < n; i++) {
57         ex = X509v3_get_ext(extensions, i);
58         obj = X509_EXTENSION_get_object(ex);
59         if (i2a_ASN1_OBJECT(bio, obj) < 0)
60             return 0;
61         critical = X509_EXTENSION_get_critical(ex);
62         BIO_printf(bio, ":%s\n", critical ? " critical" : "");
63         if (!X509V3_EXT_print(bio, ex, 0, 4)) {
64             BIO_printf(bio, "%4s", "");
65             ASN1_STRING_print(bio, X509_EXTENSION_get_data(ex));
66         }
67         BIO_write(bio, "\n", 1);
68     }
69 
70     return 1;
71 }
72 
73 int TS_X509_ALGOR_print_bio(BIO *bio, const X509_ALGOR *alg)
74 {
75     int i = OBJ_obj2nid(alg->algorithm);
76     return BIO_printf(bio, "Hash Algorithm: %s\n",
77                       (i == NID_undef) ? "UNKNOWN" : OBJ_nid2ln(i));
78 }
79 
80 int TS_MSG_IMPRINT_print_bio(BIO *bio, TS_MSG_IMPRINT *a)
81 {
82     ASN1_OCTET_STRING *msg;
83 
84     TS_X509_ALGOR_print_bio(bio, a->hash_algo);
85 
86     BIO_printf(bio, "Message data:\n");
87     msg = a->hashed_msg;
88     BIO_dump_indent(bio, (const char *)ASN1_STRING_get0_data(msg),
89                     ASN1_STRING_length(msg), 4);
90 
91     return 1;
92 }
93