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D2I_X509_NAME(3)      DragonFly Library Functions Manual      D2I_X509_NAME(3)

NAME

d2i_X509_NAME, i2d_X509_NAME, X509_NAME_get0_der, X509_NAME_dup, X509_NAME_hash, d2i_X509_NAME_ENTRY, i2d_X509_NAME_ENTRY, X509_NAME_ENTRY_dup - decode and encode X.501 Name objects

SYNOPSIS

#include <openssl/x509.h> X509_NAME * d2i_X509_NAME(X509_NAME **val_out, unsigned char **der_in, long length); int i2d_X509_NAME(X509_NAME *val_in, unsigned char **der_out); int X509_NAME_get0_der(X509_NAME *val_in, const unsigned char **der_out, size_t *out_len); X509_NAME * X509_NAME_dup(X509_NAME *val_in); unsigned long X509_NAME_hash(X509_NAME *val_in); X509_NAME_ENTRY * d2i_X509_NAME_ENTRY(X509_NAME_ENTRY **val_out, unsigned char **der_in, long length); int i2d_X509_NAME_ENTRY(X509_NAME_ENTRY *val_in, unsigned char **der_out); X509_NAME_ENTRY * X509_NAME_ENTRY_dup(X509_NAME_ENTRY *val_in);

DESCRIPTION

These functions decode and encode X.501 Name objects using DER format. For details about the semantics, examples, caveats, and bugs, see ASN1_item_d2i(3). d2i_X509_NAME() and i2d_X509_NAME() decode and encode an ASN.1 Name structure defined in RFC 5280 section 4.1.2.4. X509_NAME_get0_der() is a variant of i2d_X509_NAME() that does not copy the encoded output but instead returns a pointer to the internally cached DER-encoded version of the name. Also, it does not return the length of the output in bytes, but instead stores it in out_len. If the cached encoded form happens to be out of date, both functions update it before copying it or returning a pointer to it. X509_NAME_dup() copies val_in by calling i2d_X509_NAME() and d2i_X509_NAME(). X509_NAME_hash() calculates a SHA1(3) hash of the DER-encoded form of the name *val_in. It is for example used by X509_LOOKUP_hash_dir(3) to locate certificate files in the file system. d2i_X509_NAME_ENTRY() and i2d_X509_NAME_ENTRY() decode and encode an ASN.1 RelativeDistinguishedName structure defined in RFC 5280 section 4.1.2.4. X509_NAME_ENTRY_dup() copies val_in by calling i2d_X509_NAME_ENTRY() and d2i_X509_NAME_ENTRY().

RETURN VALUES

d2i_X509_NAME() and X509_NAME_dup() return the new X509_NAME object or NULL if an error occurs. X509_NAME_get0_der() returns 1 on success or 0 if an error occurs. X509_NAME_hash() returns the hash value or 0 if an error occurs. d2i_X509_NAME_ENTRY() and X509_NAME_ENTRY_dup() return the new X509_NAME_ENTRY object or NULL if an error occurs. i2d_X509_NAME() and i2d_X509_NAME_ENTRY() return the number of bytes successfully encoded or a negative value if an error occurs.

SEE ALSO

ASN1_item_d2i(3), X509_NAME_ENTRY_new(3), X509_NAME_new(3), X509_NAME_print_ex(3)

STANDARDS

RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile ITU-T Recommendation X.690, also known as ISO/IEC 8825-1: Information technology - ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER).

HISTORY

X509_NAME_dup() first appeared in SSLeay 0.4.4. d2i_X509_NAME(), i2d_X509_NAME(), d2i_X509_NAME_ENTRY(), i2d_X509_NAME_ENTRY(), and X509_NAME_ENTRY_dup() first appeared in SSLeay 0.5.1. X509_NAME_hash() first appeared in SSLeay 0.8.0. These functions have been available since OpenBSD 2.4. X509_NAME_get0_der() first appeared in OpenSSL 1.1.0 and has been available since OpenBSD 6.3. DragonFly 6.1-DEVELOPMENT March 27, 2018 DragonFly 6.1-DEVELOPMENT

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