Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   31170 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

gnutls_x509_crt_get_key_usage(3)    gnutls    gnutls_x509_crt_get_key_usage(3)

NAME
       gnutls_x509_crt_get_key_usage - API function

SYNOPSIS
       #include <gnutls/x509.h>

       int  gnutls_x509_crt_get_key_usage(gnutls_x509_crt_t cert, unsigned int
       * key_usage, unsigned int * critical);

ARGUMENTS
       gnutls_x509_crt_t cert
		   should contain a gnutls_x509_crt_t structure

       unsigned int * key_usage
		   where the key usage bits will be stored

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

DESCRIPTION
       This function will return  certificate's	 key  usage,  by  reading  the
       keyUsage	 X.509	extension  (2.5.29.15).	 The key usage value will ORed
       values of  the:	GNUTLS_KEY_DIGITAL_SIGNATURE,  GNUTLS_KEY_NON_REPUDIA‐
       TION,	 GNUTLS_KEY_KEY_ENCIPHERMENT,	 GNUTLS_KEY_DATA_ENCIPHERMENT,
       GNUTLS_KEY_KEY_AGREEMENT,		     GNUTLS_KEY_KEY_CERT_SIGN,
       GNUTLS_KEY_CRL_SIGN,	GNUTLS_KEY_ENCIPHER_ONLY,     GNUTLS_KEY_DECI‐
       PHER_ONLY.

RETURNS
       the certificate key usage, or a	negative  value	 in  case  of  parsing
       error.	If  the	 certificate  does  not contain the keyUsage extension
       GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.

REPORTING BUGS
       Report	bugs   to    <bug-gnutls@gnu.org>.     GnuTLS	 home	 page:
       http://www.gnu.org/software/gnutls/  General  help  using GNU software:
       http://www.gnu.org/gethelp/

COPYRIGHT
       Copyright © 2008 Free Software Foundation.
       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
       The full documentation for gnutls is maintained as  a  Texinfo  manual.
       If  the	info  and gnutls programs are properly installed at your site,
       the command

	      info gnutls

       should give you access to the complete manual.

gnutls				   2.12.6.1   gnutls_x509_crt_get_key_usage(3)

Vote for polarhome