.\" -*- mode: troff; coding: utf-8 -*- .\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. .ie n \{\ . ds C` "" . ds C' "" 'br\} .el\{\ . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" ======================================================================== .\" .IX Title "X509_DUP 3SSL" .TH X509_DUP 3SSL 2024-04-04 3.2.2-dev OpenSSL .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH NAME DECLARE_ASN1_FUNCTIONS, IMPLEMENT_ASN1_FUNCTIONS, ASN1_ITEM, ACCESS_DESCRIPTION_free, ACCESS_DESCRIPTION_new, ADMISSIONS_free, ADMISSIONS_new, ADMISSION_SYNTAX_free, ADMISSION_SYNTAX_new, ASIdOrRange_free, ASIdOrRange_new, ASIdentifierChoice_free, ASIdentifierChoice_new, ASIdentifiers_free, ASIdentifiers_new, ASRange_free, ASRange_new, AUTHORITY_INFO_ACCESS_free, AUTHORITY_INFO_ACCESS_new, AUTHORITY_KEYID_free, AUTHORITY_KEYID_new, BASIC_CONSTRAINTS_free, BASIC_CONSTRAINTS_new, CERTIFICATEPOLICIES_free, CERTIFICATEPOLICIES_new, CMS_ContentInfo_free, CMS_ContentInfo_new, CMS_ContentInfo_new_ex, CMS_ContentInfo_print_ctx, CMS_EnvelopedData_it, CMS_ReceiptRequest_free, CMS_ReceiptRequest_new, CMS_SignedData_free, CMS_SignedData_new, CRL_DIST_POINTS_free, CRL_DIST_POINTS_new, DIRECTORYSTRING_free, DIRECTORYSTRING_new, DISPLAYTEXT_free, DISPLAYTEXT_new, DIST_POINT_NAME_free, DIST_POINT_NAME_new, DIST_POINT_free, DIST_POINT_new, DSAparams_dup, ECPARAMETERS_free, ECPARAMETERS_new, ECPKPARAMETERS_free, ECPKPARAMETERS_new, EDIPARTYNAME_free, EDIPARTYNAME_new, ESS_CERT_ID_dup, ESS_CERT_ID_free, ESS_CERT_ID_new, ESS_CERT_ID_V2_dup, ESS_CERT_ID_V2_free, ESS_CERT_ID_V2_new, ESS_ISSUER_SERIAL_dup, ESS_ISSUER_SERIAL_free, ESS_ISSUER_SERIAL_new, ESS_SIGNING_CERT_dup, ESS_SIGNING_CERT_free, ESS_SIGNING_CERT_it, ESS_SIGNING_CERT_new, ESS_SIGNING_CERT_V2_dup, ESS_SIGNING_CERT_V2_free, ESS_SIGNING_CERT_V2_it, ESS_SIGNING_CERT_V2_new, EXTENDED_KEY_USAGE_free, EXTENDED_KEY_USAGE_new, GENERAL_NAMES_free, GENERAL_NAMES_new, GENERAL_NAME_dup, GENERAL_NAME_free, GENERAL_NAME_new, GENERAL_SUBTREE_free, GENERAL_SUBTREE_new, IPAddressChoice_free, IPAddressChoice_new, IPAddressFamily_free, IPAddressFamily_new, IPAddressOrRange_free, IPAddressOrRange_new, IPAddressRange_free, IPAddressRange_new, ISSUER_SIGN_TOOL_free, ISSUER_SIGN_TOOL_it, ISSUER_SIGN_TOOL_new, ISSUING_DIST_POINT_free, ISSUING_DIST_POINT_it, ISSUING_DIST_POINT_new, NAME_CONSTRAINTS_free, NAME_CONSTRAINTS_new, NAMING_AUTHORITY_free, NAMING_AUTHORITY_new, NETSCAPE_CERT_SEQUENCE_free, NETSCAPE_CERT_SEQUENCE_new, NETSCAPE_SPKAC_free, NETSCAPE_SPKAC_new, NETSCAPE_SPKI_free, NETSCAPE_SPKI_new, NOTICEREF_free, NOTICEREF_new, OCSP_BASICRESP_free, OCSP_BASICRESP_new, OCSP_CERTID_dup, OCSP_CERTID_new, OCSP_CERTSTATUS_free, OCSP_CERTSTATUS_new, OCSP_CRLID_free, OCSP_CRLID_new, OCSP_ONEREQ_free, OCSP_ONEREQ_new, OCSP_REQINFO_free, OCSP_REQINFO_new, OCSP_RESPBYTES_free, OCSP_RESPBYTES_new, OCSP_RESPDATA_free, OCSP_RESPDATA_new, OCSP_RESPID_free, OCSP_RESPID_new, OCSP_RESPONSE_new, OCSP_REVOKEDINFO_free, OCSP_REVOKEDINFO_new, OCSP_SERVICELOC_free, OCSP_SERVICELOC_new, OCSP_SIGNATURE_free, OCSP_SIGNATURE_new, OCSP_SINGLERESP_free, OCSP_SINGLERESP_new, OSSL_CMP_ITAV_dup, OSSL_CMP_ITAV_free, OSSL_CMP_MSG_dup, OSSL_CMP_MSG_it, OSSL_CMP_MSG_free, OSSL_CMP_PKIHEADER_free, OSSL_CMP_PKIHEADER_it, OSSL_CMP_PKIHEADER_new, OSSL_CMP_PKISI_dup, OSSL_CMP_PKISI_free, OSSL_CMP_PKISI_it, OSSL_CMP_PKISI_new, OSSL_CMP_PKISTATUS_it, OSSL_CRMF_CERTID_dup, OSSL_CRMF_CERTID_free, OSSL_CRMF_CERTID_it, OSSL_CRMF_CERTID_new, OSSL_CRMF_CERTTEMPLATE_free, OSSL_CRMF_CERTTEMPLATE_it, OSSL_CRMF_CERTTEMPLATE_new, OSSL_CRMF_ENCRYPTEDVALUE_free, OSSL_CRMF_ENCRYPTEDVALUE_it, OSSL_CRMF_ENCRYPTEDVALUE_new, OSSL_CRMF_MSGS_free, OSSL_CRMF_MSGS_it, OSSL_CRMF_MSGS_new, OSSL_CRMF_MSG_dup, OSSL_CRMF_MSG_free, OSSL_CRMF_MSG_it, OSSL_CRMF_MSG_new, OSSL_CRMF_PBMPARAMETER_free, OSSL_CRMF_PBMPARAMETER_it, OSSL_CRMF_PBMPARAMETER_new, OSSL_CRMF_PKIPUBLICATIONINFO_free, OSSL_CRMF_PKIPUBLICATIONINFO_it, OSSL_CRMF_PKIPUBLICATIONINFO_new, OSSL_CRMF_SINGLEPUBINFO_free, OSSL_CRMF_SINGLEPUBINFO_it, OSSL_CRMF_SINGLEPUBINFO_new, OTHERNAME_free, OTHERNAME_new, PBE2PARAM_free, PBE2PARAM_new, PBEPARAM_free, PBEPARAM_new, PBKDF2PARAM_free, PBKDF2PARAM_new, PKCS12_BAGS_free, PKCS12_BAGS_new, PKCS12_MAC_DATA_free, PKCS12_MAC_DATA_new, PKCS12_SAFEBAG_free, PKCS12_SAFEBAG_new, PKCS12_free, PKCS12_new, PKCS7_DIGEST_free, PKCS7_DIGEST_new, PKCS7_ENCRYPT_free, PKCS7_ENCRYPT_new, PKCS7_ENC_CONTENT_free, PKCS7_ENC_CONTENT_new, PKCS7_ENVELOPE_free, PKCS7_ENVELOPE_new, PKCS7_ISSUER_AND_SERIAL_free, PKCS7_ISSUER_AND_SERIAL_new, PKCS7_RECIP_INFO_free, PKCS7_RECIP_INFO_new, PKCS7_SIGNED_free, PKCS7_SIGNED_new, PKCS7_SIGNER_INFO_free, PKCS7_SIGNER_INFO_new, PKCS7_SIGN_ENVELOPE_free, PKCS7_SIGN_ENVELOPE_new, PKCS7_dup, PKCS7_free, PKCS7_new_ex, PKCS7_new, PKCS7_print_ctx, PKCS8_PRIV_KEY_INFO_free, PKCS8_PRIV_KEY_INFO_new, PKEY_USAGE_PERIOD_free, PKEY_USAGE_PERIOD_new, POLICYINFO_free, POLICYINFO_new, POLICYQUALINFO_free, POLICYQUALINFO_new, POLICY_CONSTRAINTS_free, POLICY_CONSTRAINTS_new, POLICY_MAPPING_free, POLICY_MAPPING_new, PROFESSION_INFOS_free, PROFESSION_INFOS_new, PROFESSION_INFO_free, PROFESSION_INFO_new, PROXY_CERT_INFO_EXTENSION_free, PROXY_CERT_INFO_EXTENSION_new, PROXY_POLICY_free, PROXY_POLICY_new, RSAPrivateKey_dup, RSAPublicKey_dup, RSA_OAEP_PARAMS_free, RSA_OAEP_PARAMS_new, RSA_PSS_PARAMS_free, RSA_PSS_PARAMS_new, RSA_PSS_PARAMS_dup, SCRYPT_PARAMS_free, SCRYPT_PARAMS_new, SXNETID_free, SXNETID_new, SXNET_free, SXNET_new, TLS_FEATURE_free, TLS_FEATURE_new, TS_ACCURACY_dup, TS_ACCURACY_free, TS_ACCURACY_new, TS_MSG_IMPRINT_dup, TS_MSG_IMPRINT_free, TS_MSG_IMPRINT_new, TS_REQ_dup, TS_REQ_free, TS_REQ_new, TS_RESP_dup, TS_RESP_free, TS_RESP_new, TS_STATUS_INFO_dup, TS_STATUS_INFO_free, TS_STATUS_INFO_new, TS_TST_INFO_dup, TS_TST_INFO_free, TS_TST_INFO_new, USERNOTICE_free, USERNOTICE_new, X509_ALGOR_free, X509_ALGOR_it, X509_ALGOR_new, X509_ATTRIBUTE_dup, X509_ATTRIBUTE_free, X509_ATTRIBUTE_new, X509_CERT_AUX_free, X509_CERT_AUX_new, X509_CINF_free, X509_CINF_new, X509_CRL_INFO_free, X509_CRL_INFO_new, X509_CRL_dup, X509_CRL_free, X509_CRL_new_ex, X509_CRL_new, X509_EXTENSION_dup, X509_EXTENSION_free, X509_EXTENSION_new, X509_NAME_ENTRY_dup, X509_NAME_ENTRY_free, X509_NAME_ENTRY_new, X509_NAME_dup, X509_NAME_free, X509_NAME_new, X509_REQ_INFO_free, X509_REQ_INFO_new, X509_REQ_dup, X509_REQ_free, X509_REQ_new, X509_REQ_new_ex, X509_REVOKED_dup, X509_REVOKED_free, X509_REVOKED_new, X509_SIG_free, X509_SIG_new, X509_VAL_free, X509_VAL_new, X509_dup, \&\- ASN1 object utilities .SH SYNOPSIS .IX Header "SYNOPSIS" .Vb 1 \& #include \& \& DECLARE_ASN1_FUNCTIONS(type) \& IMPLEMENT_ASN1_FUNCTIONS(stname) \& \& typedef struct ASN1_ITEM_st ASN1_ITEM; \& \& extern const ASN1_ITEM TYPE_it; \& TYPE *TYPE_new(void); \& TYPE *TYPE_dup(const TYPE *a); \& void TYPE_free(TYPE *a); \& int TYPE_print_ctx(BIO *out, TYPE *a, int indent, const ASN1_PCTX *pctx); .Ve .PP The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining \fBOPENSSL_API_COMPAT\fR with a suitable version value, see \fBopenssl_user_macros\fR\|(7): .PP .Vb 3 \& DSA *DSAparams_dup(const DSA *dsa); \& RSA *RSAPrivateKey_dup(const RSA *rsa); \& RSA *RSAPublicKey_dup(const RSA *rsa); .Ve .SH DESCRIPTION .IX Header "DESCRIPTION" In the description below, \fR\f(BITYPE\fR\fB\fR is used as a placeholder for any of the OpenSSL datatypes, such as \fBX509\fR. .PP The OpenSSL ASN1 parsing library templates are like a data-driven bytecode interpreter. Every ASN1 object as a global variable, TYPE_it, that describes the item such as its fields. (On systems which cannot export variables from shared libraries, the global is instead a function which returns a pointer to a static variable. .PP The macro \fBDECLARE_ASN1_FUNCTIONS()\fR is typically used in header files to generate the function declarations. .PP The macro \fBIMPLEMENT_ASN1_FUNCTIONS()\fR is used once in a source file to generate the function bodies. .PP \&\fR\f(BITYPE\fR\fB_new\fR() allocates an empty object of the indicated type. The object returned must be released by calling \fB\fR\f(BITYPE\fR\fB_free\fR(). .PP \&\fR\f(BITYPE\fR\fB_new_ex\fR() is similar to \fB\fR\f(BITYPE\fR\fB_new\fR() but also passes the library context \fIlibctx\fR and the property query \fIpropq\fR to use when retrieving algorithms from providers. This created object can then be used when loading binary data using \fBd2i_\fR\f(BITYPE\fR\fB\fR(). .PP \&\fR\f(BITYPE\fR\fB_dup\fR() copies an existing object, leaving it untouched. Note, however, that the internal representation of the object may contain (besides the ASN.1 structure) further data, which is not copied. For instance, an \fBX509\fR object usually is augmented by cached information on X.509v3 extensions, etc., and losing it can lead to wrong validation results. To avoid such situations, better use \fB\fR\f(BITYPE\fR\fB_up_ref\fR() if available. For the case of \fBX509\fR objects, an alternative to using \fBX509_up_ref\fR\|(3) may be to still call \fB\fR\f(BITYPE\fR\fB_dup\fR(), e.g., \fIcopied_cert = X509_dup(cert)\fR, followed by \fIX509_check_purpose(copied_cert, \-1, 0)\fR, which re-builds the cached data. .PP \&\fR\f(BITYPE\fR\fB_free\fR() releases the object and all pointers and sub-objects within it. .PP \&\fR\f(BITYPE\fR\fB_print_ctx\fR() prints the object \fIa\fR on the specified BIO \fIout\fR. Each line will be prefixed with \fIindent\fR spaces. The \fIpctx\fR specifies the printing context and is for internal use; use NULL to get the default behavior. If a print function is user-defined, then pass in any \fIpctx\fR down to any nested calls. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fR\f(BITYPE\fR\fB_new\fR(), \fB\fR\f(BITYPE\fR\fB_new_ex\fR() and \fB\fR\f(BITYPE\fR\fB_dup\fR() return a pointer to the object or NULL on failure. .PP \&\fR\f(BITYPE\fR\fB_print_ctx\fR() returns 1 on success or zero on failure. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBX509_up_ref\fR\|(3) .SH HISTORY .IX Header "HISTORY" The functions \fBX509_REQ_new_ex()\fR, \fBX509_CRL_new_ex()\fR, \fBPKCS7_new_ex()\fR and \&\fBCMS_ContentInfo_new_ex()\fR were added in OpenSSL 3.0. .PP The functions \fBDSAparams_dup()\fR, \fBRSAPrivateKey_dup()\fR and \fBRSAPublicKey_dup()\fR were deprecated in 3.0. .SH COPYRIGHT .IX Header "COPYRIGHT" Copyright 2016\-2024 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at .