Movatterモバイル変換

gnutls_x509_crt_get_key_purpose_oid(3) — Linux manual page

gnutls_x509_c...ey_purpose_oid(3) gnutlsgnutls_x509_c...ey_purpose_oid(3)

NAME        top

       gnutls_x509_crt_get_key_purpose_oid - API function

SYNOPSIS        top

#include <gnutls/x509.h>int gnutls_x509_crt_get_key_purpose_oid(gnutls_x509_crt_tcert,unsignedindx, void *oid, size_t *oid_size, unsigned int *critical);

ARGUMENTS        top

       gnutls_x509_crt_t cert                   should contain agnutls_x509_crt_ttype       unsigned indx                   This specifies which OID to return. Use (0) to get the                   first one.       void * oid  a pointer to a buffer to hold the OID (may be null)       size_t * oid_size                   initially holds the size ofoid       unsigned int * critical                   output flag to indicate criticality of extension

DESCRIPTION        top

       This function will extract the key purpose OIDs of the Certificate       specified by the given index.  These are stored in the Extended       Key Usage extension (2.5.29.37) See the GNUTLS_KP_* definitions       for human readable names.       Ifoid is null then only the size will be filled. Theoid       returned will be null terminated, althoughoid_size will not       account for the trailing null.

RETURNS        top

GNUTLS_E_SHORT_MEMORY_BUFFERif the provided buffer is not long       enough, and in that case the *oid_size will be updated with the       required size.  On success 0 is returned.

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 forgnutlsis maintained as a Texinfo       manual.  If the /usr/share/doc/gnutls/ directory does not contain       the HTML form visithttps://www.gnutls.org/manual/

COLOPHON        top

       This page is part of theGnuTLS (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 isnot part of the original manual page),       send a mail to man-pages@man7.orggnutls                            3.8.10gnutls_x509_c...ey_purpose_oid(3)

HTML rendering created 2025-09-06 byMichael Kerrisk, author ofThe Linux Programming Interface. For details of in-depthLinux/UNIX system programming training courses that I teach, lookhere. Hosting byjambit GmbH.