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gnutls_x509_crt_get_extension_info(3gnutlgnutls_x509_crt_get_extension_info(3)

NAME
       gnutls_x509_crt_get_extension_info - API	function

SYNOPSIS
       #include	<gnutls/x509.h>

       int gnutls_x509_crt_get_extension_info(gnutls_x509_crt_t	cert, unsigned
       indx, void * oid, size_t	* oid_size, unsigned int * critical);

ARGUMENTS
       gnutls_x509_crt_t cert
		   should contain a gnutls_x509_crt_t type

       unsigned	indx
		   Specifies which extension OID to send. Use (0) to  get  the
		   first one.

       void * oid  a pointer to	a structure to hold the	OID

       size_t *	oid_size
		   initially  holds the	maximum	size of	 oid , on return holds
		   actual size of  oid .

       unsigned	int * critical
		   output variable with	critical flag, may be NULL.

DESCRIPTION
       This function will return the requested extension OID in	 the  certifi-
       cate,  and  the critical	flag for it.  The extension OID	will be	stored
       as a string in the  provided  buffer.   Use  gnutls_x509_crt_get_exten-
       sion() to extract the data.

       If the buffer provided is not long enough to hold the output, then
	oid_size is updated and	GNUTLS_E_SHORT_MEMORY_BUFFER will be returned.
       The  oid	returned will be null terminated, although
	oid_size will not account for the trailing null	 (the  latter  is  not
       true for	GnuTLS prior to	3.6.0).

RETURNS
       On  success, GNUTLS_E_SUCCESS (0) is returned, otherwise	a negative er-
       ror code	is returned.  If you have reached the last extension available
       GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.

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

COPYRIGHT
       Copyright (C) 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  no-
       tice and	this notice are	preserved.

SEE ALSO
       The  full  documentation	 for gnutls is maintained as a Texinfo manual.
       If the /usr/local/share/doc/gnutls/ directory does not contain the HTML
       form visit

       https://www.gnutls.org/manual/

gnutls				    3.6.1gnutls_x509_crt_get_extension_info(3)

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

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