xref: /openssl/crypto/x509/t_req.c (revision 2126ca3d)
1 /*
2  * Copyright 1995-2021 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/buffer.h>
13 #include <openssl/bn.h>
14 #include <openssl/objects.h>
15 #include <openssl/x509.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rsa.h>
18 #include <openssl/dsa.h>
19 
20 #ifndef OPENSSL_NO_STDIO
X509_REQ_print_fp(FILE * fp,X509_REQ * x)21 int X509_REQ_print_fp(FILE *fp, X509_REQ *x)
22 {
23     BIO *b;
24     int ret;
25 
26     if ((b = BIO_new(BIO_s_file())) == NULL) {
27         ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
28         return 0;
29     }
30     BIO_set_fp(b, fp, BIO_NOCLOSE);
31     ret = X509_REQ_print(b, x);
32     BIO_free(b);
33     return ret;
34 }
35 #endif
36 
X509_REQ_print_ex(BIO * bp,X509_REQ * x,unsigned long nmflags,unsigned long cflag)37 int X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflags,
38                       unsigned long cflag)
39 {
40     long l;
41     int i;
42     EVP_PKEY *pkey;
43     STACK_OF(X509_EXTENSION) *exts;
44     char mlch = ' ';
45     int nmindent = 0, printok = 0;
46 
47     if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
48         mlch = '\n';
49         nmindent = 12;
50     }
51 
52     if (nmflags == XN_FLAG_COMPAT)
53         printok = 1;
54 
55     if (!(cflag & X509_FLAG_NO_HEADER)) {
56         if (BIO_write(bp, "Certificate Request:\n", 21) <= 0)
57             goto err;
58         if (BIO_write(bp, "    Data:\n", 10) <= 0)
59             goto err;
60     }
61     if (!(cflag & X509_FLAG_NO_VERSION)) {
62         l = X509_REQ_get_version(x);
63         if (l == X509_REQ_VERSION_1) {
64             if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
65                 goto err;
66         } else {
67             if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
68                 goto err;
69         }
70     }
71     if (!(cflag & X509_FLAG_NO_SUBJECT)) {
72         if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
73             goto err;
74         if (X509_NAME_print_ex(bp, X509_REQ_get_subject_name(x),
75             nmindent, nmflags) < printok)
76             goto err;
77         if (BIO_write(bp, "\n", 1) <= 0)
78             goto err;
79     }
80     if (!(cflag & X509_FLAG_NO_PUBKEY)) {
81         X509_PUBKEY *xpkey;
82         ASN1_OBJECT *koid;
83         if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
84             goto err;
85         if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
86             goto err;
87         xpkey = X509_REQ_get_X509_PUBKEY(x);
88         X509_PUBKEY_get0_param(&koid, NULL, NULL, NULL, xpkey);
89         if (i2a_ASN1_OBJECT(bp, koid) <= 0)
90             goto err;
91         if (BIO_puts(bp, "\n") <= 0)
92             goto err;
93 
94         pkey = X509_REQ_get0_pubkey(x);
95         if (pkey == NULL) {
96             if (BIO_printf(bp, "%12sUnable to load Public Key\n", "") <= 0)
97                 goto err;
98             ERR_print_errors(bp);
99         } else {
100             if (EVP_PKEY_print_public(bp, pkey, 16, NULL) <= 0)
101                 goto err;
102         }
103     }
104 
105     if (!(cflag & X509_FLAG_NO_ATTRIBUTES)) {
106         /* may not be */
107         if (BIO_printf(bp, "%8sAttributes:\n", "") <= 0)
108             goto err;
109 
110         if (X509_REQ_get_attr_count(x) == 0) {
111             if (BIO_printf(bp, "%12s(none)\n", "") <= 0)
112                 goto err;
113         } else {
114             for (i = 0; i < X509_REQ_get_attr_count(x); i++) {
115                 ASN1_TYPE *at;
116                 X509_ATTRIBUTE *a;
117                 ASN1_BIT_STRING *bs = NULL;
118                 ASN1_OBJECT *aobj;
119                 int j, type = 0, count = 1, ii = 0;
120 
121                 a = X509_REQ_get_attr(x, i);
122                 aobj = X509_ATTRIBUTE_get0_object(a);
123                 if (X509_REQ_extension_nid(OBJ_obj2nid(aobj)))
124                     continue;
125                 if (BIO_printf(bp, "%12s", "") <= 0)
126                     goto err;
127                 if ((j = i2a_ASN1_OBJECT(bp, aobj)) > 0) {
128                     ii = 0;
129                     count = X509_ATTRIBUTE_count(a);
130                     if (count == 0) {
131                       ERR_raise(ERR_LIB_X509, X509_R_INVALID_ATTRIBUTES);
132                       return 0;
133                     }
134  get_next:
135                     at = X509_ATTRIBUTE_get0_type(a, ii);
136                     type = at->type;
137                     bs = at->value.asn1_string;
138                 }
139                 for (j = 25 - j; j > 0; j--)
140                     if (BIO_write(bp, " ", 1) != 1)
141                         goto err;
142                 if (BIO_puts(bp, ":") <= 0)
143                     goto err;
144                 switch (type) {
145                 case V_ASN1_PRINTABLESTRING:
146                 case V_ASN1_T61STRING:
147                 case V_ASN1_NUMERICSTRING:
148                 case V_ASN1_UTF8STRING:
149                 case V_ASN1_IA5STRING:
150                     if (BIO_write(bp, (char *)bs->data, bs->length)
151                             != bs->length)
152                         goto err;
153                     if (BIO_puts(bp, "\n") <= 0)
154                         goto err;
155                     break;
156                 default:
157                     if (BIO_puts(bp, "unable to print attribute\n") <= 0)
158                         goto err;
159                     break;
160                 }
161                 if (++ii < count)
162                     goto get_next;
163             }
164         }
165     }
166     if (!(cflag & X509_FLAG_NO_EXTENSIONS)) {
167         exts = X509_REQ_get_extensions(x);
168         if (exts) {
169             if (BIO_printf(bp, "%12sRequested Extensions:\n", "") <= 0)
170                 goto err;
171             for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
172                 ASN1_OBJECT *obj;
173                 X509_EXTENSION *ex;
174                 int critical;
175                 ex = sk_X509_EXTENSION_value(exts, i);
176                 if (BIO_printf(bp, "%16s", "") <= 0)
177                     goto err;
178                 obj = X509_EXTENSION_get_object(ex);
179                 if (i2a_ASN1_OBJECT(bp, obj) <= 0)
180                     goto err;
181                 critical = X509_EXTENSION_get_critical(ex);
182                 if (BIO_printf(bp, ": %s\n", critical ? "critical" : "") <= 0)
183                     goto err;
184                 if (!X509V3_EXT_print(bp, ex, cflag, 20)) {
185                     if (BIO_printf(bp, "%20s", "") <= 0
186                         || ASN1_STRING_print(bp,
187                                              X509_EXTENSION_get_data(ex)) <= 0)
188                         goto err;
189                 }
190                 if (BIO_write(bp, "\n", 1) <= 0)
191                     goto err;
192             }
193             sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
194         }
195     }
196 
197     if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
198         const X509_ALGOR *sig_alg;
199         const ASN1_BIT_STRING *sig;
200         X509_REQ_get0_signature(x, &sig, &sig_alg);
201         if (!X509_signature_print(bp, sig_alg, sig))
202             goto err;
203     }
204 
205     return 1;
206  err:
207     ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
208     return 0;
209 }
210 
X509_REQ_print(BIO * bp,X509_REQ * x)211 int X509_REQ_print(BIO *bp, X509_REQ *x)
212 {
213     return X509_REQ_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
214 }
215