`gnutls_x509_crt_get_extension_by_oid` ( 3 )

Функции API (API function)

Имя (Name)

gnutls_x509_crt_get_extension_by_oid - API function

Синопсис (Synopsis)

#include <gnutls/x509.h>

       int gnutls_x509_crt_get_extension_by_oid(gnutls_x509_crt_t cert,
       const char * oid, unsigned indx, void * buf, size_t * buf_size,
       unsigned int * critical);

Аргументы (Arguments)

gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       const char * oid
                   holds an Object Identified in null terminated string

       unsigned indx
                   In case multiple same OIDs exist in the extensions,
                   this specifies which to send. Use (0) to get the
                   first one.

       void * buf  a pointer to a structure to hold the name (may be
                   null)

       size_t * buf_size
                   initially holds the size of  buf

       unsigned int * critical
                   will be non-zero if the extension is marked as
                   critical

Описание (Description)

This function will return the extension specified by the OID in
       the certificate.  The extensions will be returned as binary data
       DER encoded, in the provided buffer.

Возвращаемое значение (Return value)

On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a
       negative error code is returned. If the certificate does not
       contain the specified extension
       GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.

Сообщение об ошибках (Reporting bugs)

Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org

Смотри также (See also)

The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit

https://www.gnutls.org/manual/

Исходный текст на man7.org

gnutls_x509_crt_get_extension_by_oid ( 3 )