gnutls_x509_crt_get_issuer_dn_by_oid(3) — Linux manual page

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON

gnutls_x509_crt_get_issuer_dn_by_oid(3)_x509_crt_get_issuer_dn_by_oid(3)

NAME         top

       gnutls_x509_crt_get_issuer_dn_by_oid - API function

SYNOPSIS         top

       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_issuer_dn_by_oid(gnutls_x509_crt_t cert,
       const char * oid, unsigned indx, unsigned int raw_flag, void *
       buf, size_t * buf_size);

ARGUMENTS         top

       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 RDN, this
                   specifies which to send. Use (0) to get the first
                   one.

       unsigned int raw_flag
                   If non-zero returns the raw DER data of the DN part.

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

       size_t * buf_size
                   initially holds the size of  buf

DESCRIPTION         top

       This function will extract the part of the name of the
       Certificate issuer specified by the given OID. The output, if the
       raw flag is not used, will be encoded as described in RFC4514.
       Thus a string that is ASCII or UTF-8 encoded, depending on the
       certificate data.

       Some helper macros with popular OIDs can be found in
       gnutls/x509.h If raw flag is (0), this function will only return
       known OIDs as text. Other OIDs will be DER encoded, as described
       in RFC4514 -- in hex format with a '#' prefix.  You can check
       about known OIDs using gnutls_x509_dn_oid_known().

       If  buf is null then only the size will be filled. If the
       raw_flag is not specified the output is always null terminated,
       although the
        buf_size will not include the null character.

RETURNS         top

       GNUTLS_E_SHORT_MEMORY_BUFFER if the provided buffer is not long
       enough, and in that case the  buf_size will be updated with the
       required size. GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE if there are
       no data in the current index. On success 0 is returned.

REPORTING BUGS         top

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

COPYRIGHT         top

       Copyright © 2001- Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without
       modification, are permitted in any medium without royalty
       provided the copyright notice and this notice are preserved.

SEE ALSO         top

       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/ 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at
       ⟨http://www.gnutls.org/⟩.  If you have a bug report for this
       manual page, send it to bugs@gnutls.org.  This page was obtained
       from the tarball gnutls-3.7.1.tar.xz fetched from
       ⟨http://www.gnutls.org/download.html⟩ on 2021-04-01.  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

gnutls                           g3n.u7t.l1s_x509_crt_get_issuer_dn_by_oid(3)