127 lines
4.3 KiB
Plaintext
127 lines
4.3 KiB
Plaintext
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=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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