Add X509_NAME_hash_ex() to be able to check if it failed due to unsupported SHA1
[openssl.git] / doc / man3 / X509_dup.pod
1 =pod
2
3 =head1 NAME
4
5 DECLARE_ASN1_FUNCTIONS,
6 IMPLEMENT_ASN1_FUNCTIONS,
7 ASN1_ITEM,
8 ACCESS_DESCRIPTION_free,
9 ACCESS_DESCRIPTION_new,
10 ADMISSIONS_free,
11 ADMISSIONS_new,
12 ADMISSION_SYNTAX_free,
13 ADMISSION_SYNTAX_new,
14 ASIdOrRange_free,
15 ASIdOrRange_new,
16 ASIdentifierChoice_free,
17 ASIdentifierChoice_new,
18 ASIdentifiers_free,
19 ASIdentifiers_new,
20 ASRange_free,
21 ASRange_new,
22 AUTHORITY_INFO_ACCESS_free,
23 AUTHORITY_INFO_ACCESS_new,
24 AUTHORITY_KEYID_free,
25 AUTHORITY_KEYID_new,
26 BASIC_CONSTRAINTS_free,
27 BASIC_CONSTRAINTS_new,
28 CERTIFICATEPOLICIES_free,
29 CERTIFICATEPOLICIES_new,
30 CMS_ContentInfo_free,
31 CMS_ContentInfo_new,
32 CMS_ContentInfo_new_ex,
33 CMS_ContentInfo_print_ctx,
34 CMS_ReceiptRequest_free,
35 CMS_ReceiptRequest_new,
36 CRL_DIST_POINTS_free,
37 CRL_DIST_POINTS_new,
38 DIRECTORYSTRING_free,
39 DIRECTORYSTRING_new,
40 DISPLAYTEXT_free,
41 DISPLAYTEXT_new,
42 DIST_POINT_NAME_free,
43 DIST_POINT_NAME_new,
44 DIST_POINT_free,
45 DIST_POINT_new,
46 DSAparams_dup,
47 ECPARAMETERS_free,
48 ECPARAMETERS_new,
49 ECPKPARAMETERS_free,
50 ECPKPARAMETERS_new,
51 EDIPARTYNAME_free,
52 EDIPARTYNAME_new,
53 ESS_CERT_ID_dup,
54 ESS_CERT_ID_free,
55 ESS_CERT_ID_new,
56 ESS_CERT_ID_V2_dup,
57 ESS_CERT_ID_V2_free,
58 ESS_CERT_ID_V2_new,
59 ESS_ISSUER_SERIAL_dup,
60 ESS_ISSUER_SERIAL_free,
61 ESS_ISSUER_SERIAL_new,
62 ESS_SIGNING_CERT_dup,
63 ESS_SIGNING_CERT_free,
64 ESS_SIGNING_CERT_new,
65 ESS_SIGNING_CERT_V2_dup,
66 ESS_SIGNING_CERT_V2_free,
67 ESS_SIGNING_CERT_V2_new,
68 EXTENDED_KEY_USAGE_free,
69 EXTENDED_KEY_USAGE_new,
70 GENERAL_NAMES_free,
71 GENERAL_NAMES_new,
72 GENERAL_NAME_dup,
73 GENERAL_NAME_free,
74 GENERAL_NAME_new,
75 GENERAL_SUBTREE_free,
76 GENERAL_SUBTREE_new,
77 IPAddressChoice_free,
78 IPAddressChoice_new,
79 IPAddressFamily_free,
80 IPAddressFamily_new,
81 IPAddressOrRange_free,
82 IPAddressOrRange_new,
83 IPAddressRange_free,
84 IPAddressRange_new,
85 ISSUER_SIGN_TOOL_free,
86 ISSUER_SIGN_TOOL_it,
87 ISSUER_SIGN_TOOL_new,
88 ISSUING_DIST_POINT_free,
89 ISSUING_DIST_POINT_it,
90 ISSUING_DIST_POINT_new,
91 NAME_CONSTRAINTS_free,
92 NAME_CONSTRAINTS_new,
93 NAMING_AUTHORITY_free,
94 NAMING_AUTHORITY_new,
95 NETSCAPE_CERT_SEQUENCE_free,
96 NETSCAPE_CERT_SEQUENCE_new,
97 NETSCAPE_SPKAC_free,
98 NETSCAPE_SPKAC_new,
99 NETSCAPE_SPKI_free,
100 NETSCAPE_SPKI_new,
101 NOTICEREF_free,
102 NOTICEREF_new,
103 OCSP_BASICRESP_free,
104 OCSP_BASICRESP_new,
105 OCSP_CERTID_dup,
106 OCSP_CERTID_new,
107 OCSP_CERTSTATUS_free,
108 OCSP_CERTSTATUS_new,
109 OCSP_CRLID_free,
110 OCSP_CRLID_new,
111 OCSP_ONEREQ_free,
112 OCSP_ONEREQ_new,
113 OCSP_REQINFO_free,
114 OCSP_REQINFO_new,
115 OCSP_RESPBYTES_free,
116 OCSP_RESPBYTES_new,
117 OCSP_RESPDATA_free,
118 OCSP_RESPDATA_new,
119 OCSP_RESPID_free,
120 OCSP_RESPID_new,
121 OCSP_RESPONSE_new,
122 OCSP_REVOKEDINFO_free,
123 OCSP_REVOKEDINFO_new,
124 OCSP_SERVICELOC_free,
125 OCSP_SERVICELOC_new,
126 OCSP_SIGNATURE_free,
127 OCSP_SIGNATURE_new,
128 OCSP_SINGLERESP_free,
129 OCSP_SINGLERESP_new,
130 OSSL_CMP_ITAV_dup,
131 OSSL_CMP_ITAV_free,
132 OSSL_CMP_MSG_dup,
133 OSSL_CMP_MSG_it,
134 OSSL_CMP_MSG_free,
135 OSSL_CMP_PKIHEADER_free,
136 OSSL_CMP_PKIHEADER_it,
137 OSSL_CMP_PKIHEADER_new,
138 OSSL_CMP_PKISI_dup,
139 OSSL_CMP_PKISI_free,
140 OSSL_CMP_PKISI_it,
141 OSSL_CMP_PKISI_new,
142 OSSL_CMP_PKISTATUS_it,
143 OSSL_CRMF_CERTID_dup,
144 OSSL_CRMF_CERTID_free,
145 OSSL_CRMF_CERTID_it,
146 OSSL_CRMF_CERTID_new,
147 OSSL_CRMF_CERTTEMPLATE_free,
148 OSSL_CRMF_CERTTEMPLATE_it,
149 OSSL_CRMF_CERTTEMPLATE_new,
150 OSSL_CRMF_ENCRYPTEDVALUE_free,
151 OSSL_CRMF_ENCRYPTEDVALUE_it,
152 OSSL_CRMF_ENCRYPTEDVALUE_new,
153 OSSL_CRMF_MSGS_free,
154 OSSL_CRMF_MSGS_it,
155 OSSL_CRMF_MSGS_new,
156 OSSL_CRMF_MSG_dup,
157 OSSL_CRMF_MSG_free,
158 OSSL_CRMF_MSG_it,
159 OSSL_CRMF_MSG_new,
160 OSSL_CRMF_PBMPARAMETER_free,
161 OSSL_CRMF_PBMPARAMETER_it,
162 OSSL_CRMF_PBMPARAMETER_new,
163 OSSL_CRMF_PKIPUBLICATIONINFO_free,
164 OSSL_CRMF_PKIPUBLICATIONINFO_it,
165 OSSL_CRMF_PKIPUBLICATIONINFO_new,
166 OSSL_CRMF_SINGLEPUBINFO_free,
167 OSSL_CRMF_SINGLEPUBINFO_it,
168 OSSL_CRMF_SINGLEPUBINFO_new,
169 OTHERNAME_free,
170 OTHERNAME_new,
171 PBE2PARAM_free,
172 PBE2PARAM_new,
173 PBEPARAM_free,
174 PBEPARAM_new,
175 PBKDF2PARAM_free,
176 PBKDF2PARAM_new,
177 PKCS12_BAGS_free,
178 PKCS12_BAGS_new,
179 PKCS12_MAC_DATA_free,
180 PKCS12_MAC_DATA_new,
181 PKCS12_SAFEBAG_free,
182 PKCS12_SAFEBAG_new,
183 PKCS12_free,
184 PKCS12_new,
185 PKCS7_DIGEST_free,
186 PKCS7_DIGEST_new,
187 PKCS7_ENCRYPT_free,
188 PKCS7_ENCRYPT_new,
189 PKCS7_ENC_CONTENT_free,
190 PKCS7_ENC_CONTENT_new,
191 PKCS7_ENVELOPE_free,
192 PKCS7_ENVELOPE_new,
193 PKCS7_ISSUER_AND_SERIAL_free,
194 PKCS7_ISSUER_AND_SERIAL_new,
195 PKCS7_RECIP_INFO_free,
196 PKCS7_RECIP_INFO_new,
197 PKCS7_SIGNED_free,
198 PKCS7_SIGNED_new,
199 PKCS7_SIGNER_INFO_free,
200 PKCS7_SIGNER_INFO_new,
201 PKCS7_SIGN_ENVELOPE_free,
202 PKCS7_SIGN_ENVELOPE_new,
203 PKCS7_dup,
204 PKCS7_free,
205 PKCS7_new_ex,
206 PKCS7_new,
207 PKCS7_print_ctx,
208 PKCS8_PRIV_KEY_INFO_free,
209 PKCS8_PRIV_KEY_INFO_new,
210 PKEY_USAGE_PERIOD_free,
211 PKEY_USAGE_PERIOD_new,
212 POLICYINFO_free,
213 POLICYINFO_new,
214 POLICYQUALINFO_free,
215 POLICYQUALINFO_new,
216 POLICY_CONSTRAINTS_free,
217 POLICY_CONSTRAINTS_new,
218 POLICY_MAPPING_free,
219 POLICY_MAPPING_new,
220 PROFESSION_INFOS_free,
221 PROFESSION_INFOS_new,
222 PROFESSION_INFO_free,
223 PROFESSION_INFO_new,
224 PROXY_CERT_INFO_EXTENSION_free,
225 PROXY_CERT_INFO_EXTENSION_new,
226 PROXY_POLICY_free,
227 PROXY_POLICY_new,
228 RSAPrivateKey_dup,
229 RSAPublicKey_dup,
230 RSA_OAEP_PARAMS_free,
231 RSA_OAEP_PARAMS_new,
232 RSA_PSS_PARAMS_free,
233 RSA_PSS_PARAMS_new,
234 SCRYPT_PARAMS_free,
235 SCRYPT_PARAMS_new,
236 SXNETID_free,
237 SXNETID_new,
238 SXNET_free,
239 SXNET_new,
240 TLS_FEATURE_free,
241 TLS_FEATURE_new,
242 TS_ACCURACY_dup,
243 TS_ACCURACY_free,
244 TS_ACCURACY_new,
245 TS_MSG_IMPRINT_dup,
246 TS_MSG_IMPRINT_free,
247 TS_MSG_IMPRINT_new,
248 TS_REQ_dup,
249 TS_REQ_free,
250 TS_REQ_new,
251 TS_RESP_dup,
252 TS_RESP_free,
253 TS_RESP_new,
254 TS_STATUS_INFO_dup,
255 TS_STATUS_INFO_free,
256 TS_STATUS_INFO_new,
257 TS_TST_INFO_dup,
258 TS_TST_INFO_free,
259 TS_TST_INFO_new,
260 USERNOTICE_free,
261 USERNOTICE_new,
262 X509_ALGOR_free,
263 X509_ALGOR_it,
264 X509_ALGOR_new,
265 X509_ATTRIBUTE_dup,
266 X509_ATTRIBUTE_free,
267 X509_ATTRIBUTE_new,
268 X509_CERT_AUX_free,
269 X509_CERT_AUX_new,
270 X509_CINF_free,
271 X509_CINF_new,
272 X509_CRL_INFO_free,
273 X509_CRL_INFO_new,
274 X509_CRL_dup,
275 X509_CRL_free,
276 X509_CRL_new,
277 X509_EXTENSION_dup,
278 X509_EXTENSION_free,
279 X509_EXTENSION_new,
280 X509_NAME_ENTRY_dup,
281 X509_NAME_ENTRY_free,
282 X509_NAME_ENTRY_new,
283 X509_NAME_dup,
284 X509_NAME_free,
285 X509_NAME_new,
286 X509_REQ_INFO_free,
287 X509_REQ_INFO_new,
288 X509_REQ_dup,
289 X509_REQ_free,
290 X509_REQ_new,
291 X509_REVOKED_dup,
292 X509_REVOKED_free,
293 X509_REVOKED_new,
294 X509_SIG_free,
295 X509_SIG_new,
296 X509_VAL_free,
297 X509_VAL_new,
298 X509_dup,
299 - ASN1 object utilities
300
301 =head1 SYNOPSIS
302
303 =for openssl generic
304
305  #include <openssl/asn1t.h>
306
307  DECLARE_ASN1_FUNCTIONS(type)
308  IMPLEMENT_ASN1_FUNCTIONS(stname)
309
310  typedef struct ASN1_ITEM_st ASN1_ITEM;
311
312  extern const ASN1_ITEM TYPE_it;
313  TYPE *TYPE_new(void);
314  TYPE *TYPE_dup(const TYPE *a);
315  void TYPE_free(TYPE *a);
316  int TYPE_print_ctx(BIO *out, TYPE *a, int indent, const ASN1_PCTX *pctx);
317
318 =head1 DESCRIPTION
319
320 In the description below, B<I<TYPE>> is used
321 as a placeholder for any of the OpenSSL datatypes, such as B<X509>.
322
323 The OpenSSL ASN1 parsing library templates are like a data-driven bytecode
324 interpreter.
325 Every ASN1 object as a global variable, TYPE_it, that describes the item
326 such as its fields.  (On systems which cannot export variables from shared
327 libraries, the global is instead a function which returns a pointer to a
328 static variable.
329
330 The macro DECLARE_ASN1_FUNCTIONS() is typically used in header files
331 to generate the function declarations.
332
333 The macro IMPLEMENT_ASN1_FUNCTIONS() is used once in a source file
334 to generate the function bodies.
335
336
337 B<I<TYPE>_new>() allocates an empty object of the indicated type.
338 The object returned must be released by calling B<I<TYPE>_free>().
339
340 B<I<TYPE>_new_ex>() is similiar to B<I<TYPE>_new>() but also passes the
341 library context I<libctx> and the property query I<propq> to use when retrieving
342 algorithms from providers.
343
344 B<I<TYPE>_dup>() copies an existing object, leaving it untouched.
345
346 B<I<TYPE>_free>() releases the object and all pointers and sub-objects
347 within it.
348
349 B<I<TYPE>_print_ctx>() prints the object I<a> on the specified BIO I<out>.
350 Each line will be prefixed with I<indent> spaces.
351 The I<pctx> specifies the printing context and is for internal
352 use; use NULL to get the default behavior.  If a print function is
353 user-defined, then pass in any I<pctx> down to any nested calls.
354
355 =head1 RETURN VALUES
356
357 B<I<TYPE>_new>(), B<I<TYPE>_new_ex>() and B<I<TYPE>_dup>() return a pointer to
358 the object or NULL on failure.
359
360 B<I<TYPE>_print_ctx>() returns 1 on success or zero on failure.
361
362 =head1 HISTORY
363
364 The functions PKCS7_new_ex() and CMS_ContentInfo_new_ex() were
365 added in OpenSSL 3.0.
366
367 =head1 COPYRIGHT
368
369 Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
370
371 Licensed under the Apache License 2.0 (the "License").  You may not use
372 this file except in compliance with the License.  You can obtain a copy
373 in the file LICENSE in the source distribution or at
374 L<https://www.openssl.org/source/license.html>.
375
376 =cut