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gnutls_x509_crt_get_subject_unique_id(3) — Linux manual page

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

gnutls_x509_c...ject_unique_id(3) gnutlsgnutls_x509_c...ject_unique_id(3)

NAME         top

       gnutls_x509_crt_get_subject_unique_id - API function

SYNOPSIS         top

       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_subject_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 subjectUniqueID 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.

REPORTING BUGS         top

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

COPYRIGHT         top

       Copyright © 2001-2023 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 fetched from
       ⟨https://www.gnupg.org/ftp/gcrypt/gnutls/⟩ on 2025-08-11.  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                            3.8.10gnutls_x509_c...ject_unique_id(3)

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