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X509_GET_SUBJECT_NAME(3ossl) OpenSSL X509_GET_SUBJECT_NAME(3ossl)
NAME
X509_NAME_hash_ex, X509_NAME_hash, X509_get_subject_name,
X509_set_subject_name, X509_subject_name_hash, X509_get_issuer_name,
X509_set_issuer_name, X509_issuer_name_hash, X509_REQ_get_subject_name,
X509_REQ_set_subject_name, X509_CRL_get_issuer,
X509_CRL_set_issuer_name - get X509_NAME hashes or get and set issuer
or subject names
SYNOPSIS
#include <openssl/x509.h>
unsigned long X509_NAME_hash_ex(const X509_NAME *x, OSSL_LIB_CTX *libctx,
const char *propq, int *ok);
X509_NAME *X509_get_subject_name(const X509 *x);
int X509_set_subject_name(X509 *x, const X509_NAME *name);
unsigned long X509_subject_name_hash(X509 *x);
X509_NAME *X509_get_issuer_name(const X509 *x);
int X509_set_issuer_name(X509 *x, const X509_NAME *name);
unsigned long X509_issuer_name_hash(X509 *x);
X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req);
int X509_REQ_set_subject_name(X509_REQ *req, const X509_NAME *name);
X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl);
int X509_CRL_set_issuer_name(X509_CRL *x, const X509_NAME *name);
The following macro has been deprecated since OpenSSL 3.0, and can be
hidden entirely by defining OPENSSL_API_COMPAT with a suitable version
value, see openssl_user_macros(7):
#define X509_NAME_hash(x) X509_NAME_hash_ex(x, NULL, NULL, NULL)
DESCRIPTION
X509_NAME_hash_ex() returns a hash value of name x or 0 on failure,
using any given library context libctx and property query propq. The
ok result argument may be NULL or else is used to return 1 for success
and 0 for failure. Failure may happen on malloc error or if no SHA1
implementation is available.
X509_NAME_hash() returns a hash value of name x or 0 on failure, using
the default library context and default property query.
X509_get_subject_name() returns the subject name of certificate x. The
returned value is an internal pointer which MUST NOT be freed.
X509_set_subject_name() sets the issuer name of certificate x to name.
The name parameter is copied internally and should be freed up when it
is no longer needed.
X509_subject_name_hash() returns a hash value of the subject name of
certificate x.
X509_get_issuer_name(), X509_set_issuer_name(), and
X509_issuer_name_hash() are identical to X509_get_subject_name(),
RETURN VALUES
X509_get_subject_name(), X509_get_issuer_name(),
X509_REQ_get_subject_name() and X509_CRL_get_issuer() return an
X509_NAME pointer.
X509_NAME_hash_ex(), X509_NAME_hash(), X509_subject_name_hash() and
X509_issuer_name_hash() return the first four bytes of the SHA1 hash
value, converted to unsigned long in little endian order, or 0 on
failure.
X509_set_subject_name(), X509_set_issuer_name(),
X509_REQ_set_subject_name() and X509_CRL_set_issuer_name() return 1 for
success and 0 for failure.
BUGS
In case X509_NAME_hash(), X509_subject_name_hash(), or
X509_issuer_name_hash() returns 0 it remains unclear if this is the
real hash value or due to failure. Better use X509_NAME_hash_ex()
instead.
SEE ALSO
d2i_X509(3), ERR_get_error(3), d2i_X509(3) X509_CRL_get0_by_serial(3),
X509_get0_signature(3), X509_get_ext_d2i(3),
X509_get_extension_flags(3), X509_get_pubkey(3),
X509_NAME_add_entry_by_txt(3), X509_NAME_ENTRY_get_object(3),
X509_NAME_get_index_by_NID(3), X509_NAME_print_ex(3), X509_new(3),
X509_sign(3), X509V3_get_d2i(3), X509_verify_cert(3)
HISTORY
X509_REQ_get_subject_name() is a function in OpenSSL 1.1.0 and a macro
in earlier versions.
X509_CRL_get_issuer() is a function in OpenSSL 1.1.0. It was previously
added in OpenSSL 1.0.0 as a macro.
X509_NAME_hash() was turned into a macro and deprecated in OpenSSL 3.0.
COPYRIGHT
Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
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
<https://www.openssl.org/source/license.html>.
3.0.11 2023-09-19 X509_GET_SUBJECT_NAME(3ossl)