gnutls_x509_crt_get_issuer_unique_id(3) — Linux manual page



NAME         top

       gnutls_x509_crt_get_issuer_unique_id - API function

SYNOPSIS         top

       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_issuer_unique_id(gnutls_x509_crt_t crt, char
       * buf, size_t * buf_size);

ARGUMENTS         top

       gnutls_x509_crt_t crt
                   Holds the certificate

       char * buf  user allocated memory buffer, will hold the unique id

       size_t * buf_size
                   size of user allocated memory buffer (on input), will
                   hold actual size of the unique ID on return.

DESCRIPTION         top

       This function will extract the issuerUniqueID value (if present) for
       the given certificate.

       If the user allocated memory buffer is not large enough to hold the
       full subjectUniqueID, then a GNUTLS_E_SHORT_MEMORY_BUFFER error will
       be returned, and buf_size will be set to the actual length.

       This function had a bug prior to 3.4.8 that prevented the setting of
       NULL  buf to discover the  buf_size . To use this function safely
       with the older versions the  buf must be a valid buffer that can hold
       at least a single byte if  buf_size is zero.

RETURNS         top

       GNUTLS_E_SUCCESS on success, otherwise a negative error code.

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2019 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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.9.tar.xz fetched from
       ⟨⟩ on 2020-09-18.  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

gnutls                              3.g6n.u9tls_x509_crt_get_issuer_unique_id(3)