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3dbf824380
There was recently an instance where a user was confused by the deprecation warnings in the docs. They believed the warning applied to the immediately preceding function declarations, when it fact it applied to the following function declarations. https://mta.openssl.org/pipermail/openssl-users/2021-December/014665.html We clarify the wording to make it clear that the warning applies to the following functions. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/17180)
127 lines
4.3 KiB
Plaintext
127 lines
4.3 KiB
Plaintext
=pod
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=head1 NAME
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X509_NAME_hash_ex, X509_NAME_hash,
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X509_get_subject_name, X509_set_subject_name, X509_subject_name_hash,
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X509_get_issuer_name, X509_set_issuer_name, X509_issuer_name_hash,
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X509_REQ_get_subject_name, X509_REQ_set_subject_name,
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X509_CRL_get_issuer, X509_CRL_set_issuer_name -
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get X509_NAME hashes or get and set issuer or subject names
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=head1 SYNOPSIS
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#include <openssl/x509.h>
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unsigned long X509_NAME_hash_ex(const X509_NAME *x, OSSL_LIB_CTX *libctx,
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const char *propq, int *ok);
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X509_NAME *X509_get_subject_name(const X509 *x);
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int X509_set_subject_name(X509 *x, const X509_NAME *name);
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unsigned long X509_subject_name_hash(X509 *x);
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X509_NAME *X509_get_issuer_name(const X509 *x);
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int X509_set_issuer_name(X509 *x, const X509_NAME *name);
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unsigned long X509_issuer_name_hash(X509 *x);
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X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req);
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int X509_REQ_set_subject_name(X509_REQ *req, const X509_NAME *name);
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X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl);
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int X509_CRL_set_issuer_name(X509_CRL *x, const X509_NAME *name);
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The following macro has been deprecated since OpenSSL 3.0, and can be
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hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value,
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see L<openssl_user_macros(7)>:
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#define X509_NAME_hash(x) X509_NAME_hash_ex(x, NULL, NULL, NULL)
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=head1 DESCRIPTION
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X509_NAME_hash_ex() returns a hash value of name I<x> or 0 on failure,
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using any given library context I<libctx> and property query I<propq>.
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The I<ok> result argument may be NULL
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or else is used to return 1 for success and 0 for failure.
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Failure may happen on malloc error or if no SHA1 implementation is available.
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X509_NAME_hash() returns a hash value of name I<x> or 0 on failure,
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using the default library context and default property query.
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X509_get_subject_name() returns the subject name of certificate I<x>. The
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returned value is an internal pointer which B<MUST NOT> be freed.
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X509_set_subject_name() sets the issuer name of certificate I<x> to
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I<name>. The I<name> parameter is copied internally and should be freed
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up when it is no longer needed.
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X509_subject_name_hash() returns a hash value of the subject name of
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certificate I<x>.
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X509_get_issuer_name(), X509_set_issuer_name(), and X509_issuer_name_hash()
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are identical to
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X509_get_subject_name(), X509_set_subject_name(), and X509_subject_name_hash()
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except they relate to the issuer name of I<x>.
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Similarly X509_REQ_get_subject_name(), X509_REQ_set_subject_name(),
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X509_CRL_get_issuer() and X509_CRL_set_issuer_name() get or set the subject
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or issuer names of certificate requests of CRLs respectively.
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=head1 RETURN VALUES
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X509_get_subject_name(), X509_get_issuer_name(), X509_REQ_get_subject_name()
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and X509_CRL_get_issuer() return an B<X509_NAME> pointer.
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X509_NAME_hash_ex(), X509_NAME_hash(),
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X509_subject_name_hash() and X509_issuer_name_hash()
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return the first four bytes of the SHA1 hash value,
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converted to B<unsigned long> in little endian order,
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or 0 on failure.
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X509_set_subject_name(), X509_set_issuer_name(), X509_REQ_set_subject_name()
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and X509_CRL_set_issuer_name() return 1 for success and 0 for failure.
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=head1 BUGS
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In case X509_NAME_hash(), X509_subject_name_hash(), or X509_issuer_name_hash()
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returns 0 it remains unclear if this is the real hash value or due to failure.
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Better use X509_NAME_hash_ex() instead.
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=head1 SEE ALSO
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L<d2i_X509(3)>,
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L<ERR_get_error(3)>, L<d2i_X509(3)>
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L<X509_CRL_get0_by_serial(3)>,
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L<X509_get0_signature(3)>,
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L<X509_get_ext_d2i(3)>,
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L<X509_get_extension_flags(3)>,
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L<X509_get_pubkey(3)>,
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L<X509_NAME_add_entry_by_txt(3)>,
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L<X509_NAME_ENTRY_get_object(3)>,
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L<X509_NAME_get_index_by_NID(3)>,
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L<X509_NAME_print_ex(3)>,
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L<X509_new(3)>,
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L<X509_sign(3)>,
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L<X509V3_get_d2i(3)>,
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L<X509_verify_cert(3)>
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=head1 HISTORY
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X509_REQ_get_subject_name() is a function in OpenSSL 1.1.0 and a macro in
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earlier versions.
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X509_CRL_get_issuer() is a function in OpenSSL 1.1.0. It was previously
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added in OpenSSL 1.0.0 as a macro.
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X509_NAME_hash() was turned into a macro and deprecated in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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