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Title "X509_GET_SUBJECT_NAME 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
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 Header "SYNOPSIS" .Vb 1 #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); .Ve

The following macro has been deprecated since OpenSSL 3.0, and can be hidden entirely by defining \s-1OPENSSL_API_COMPAT\s0 with a suitable version value, see openssl_user_macros\|(7):

.Vb 1 #define X509_NAME_hash(x) X509_NAME_hash_ex(x, NULL, NULL, NULL) .Ve

Header "DESCRIPTION" \fBX509_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 \s-1NULL\s0 or else is used to return 1 for success and 0 for failure. Failure may happen on malloc error or if no \s-1SHA1\s0 implementation is available.

\fBX509_NAME_hash() returns a hash value of name x or 0 on failure, using the default library context and default property query.

\fBX509_get_subject_name() returns the subject name of certificate x. The returned value is an internal pointer which \s-1MUST NOT\s0 be freed.

\fBX509_set_subject_name() sets the issuer name of certificate x to \fIname. The name parameter is copied internally and should be freed up when it is no longer needed.

\fBX509_subject_name_hash() returns a hash value of the subject name of certificate x.

\fBX509_get_issuer_name(), X509_set_issuer_name(), and X509_issuer_name_hash() are identical to \fBX509_get_subject_name(), X509_set_subject_name(), and X509_subject_name_hash() except they relate to the issuer name of x.

Similarly X509_REQ_get_subject_name(), X509_REQ_set_subject_name(), \fBX509_CRL_get_issuer() and X509_CRL_set_issuer_name() get or set the subject or issuer names of certificate requests of CRLs respectively.

Header "RETURN VALUES" \fBX509_get_subject_name(), X509_get_issuer_name(), X509_REQ_get_subject_name() and X509_CRL_get_issuer() return an X509_NAME pointer.

\fBX509_NAME_hash_ex(), X509_NAME_hash(), \fBX509_subject_name_hash() and X509_issuer_name_hash() return the first four bytes of the \s-1SHA1\s0 hash value, converted to unsigned long in little endian order, or 0 on failure.

\fBX509_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.

Header "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. Header "SEE ALSO" \fBd2i_X509\|(3), \fBERR_get_error\|(3), d2i_X509\|(3) \fBX509_CRL_get0_by_serial\|(3), \fBX509_get0_signature\|(3), \fBX509_get_ext_d2i\|(3), \fBX509_get_extension_flags\|(3), \fBX509_get_pubkey\|(3), \fBX509_NAME_add_entry_by_txt\|(3), \fBX509_NAME_ENTRY_get_object\|(3), \fBX509_NAME_get_index_by_NID\|(3), \fBX509_NAME_print_ex\|(3), \fBX509_new\|(3), \fBX509_sign\|(3), \fBX509V3_get_d2i\|(3), \fBX509_verify_cert\|(3) Header "HISTORY" \fBX509_REQ_get_subject_name() is a function in OpenSSL 1.1.0 and a macro in earlier versions.

\fBX509_CRL_get_issuer() is a function in OpenSSL 1.1.0. It was previously added in OpenSSL 1.0.0 as a macro.

\fBX509_NAME_hash() was turned into a macro and deprecated in OpenSSL 3.0.

Header "COPYRIGHT" Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.