.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.

.TH "gnutls_x509_crt_get_extension_data" 3 "3.6.2" "gnutls" "gnutls"

.SH NAME

gnutls_x509_crt_get_extension_data \- API function

.SH SYNOPSIS

.B #include <gnutls/x509.h>

.sp

.BI "int gnutls_x509_crt_get_extension_data(gnutls_x509_crt_t " cert ", unsigned " indx ", void * " data ", size_t * " sizeof_data ");"

.SH ARGUMENTS

.IP "gnutls_x509_crt_t cert" 12

should contain a \fBgnutls_x509_crt_t\fP type

.IP "unsigned indx" 12

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

.IP "void * data" 12

a pointer to a structure to hold the data (may be null)

.IP "size_t * sizeof_data" 12

initially holds the size of  \fIdata\fP 

.SH "DESCRIPTION"

This function will return the requested extension data in the

certificate.  The extension data will be stored in the

provided buffer.

Use \fBgnutls_x509_crt_get_extension_info()\fP to extract the OID and

critical flag.  Use \fBgnutls_x509_crt_get_extension_by_oid()\fP instead,

if you want to get data indexed by the extension OID rather than

sequence.

.SH "RETURNS"

On success, \fBGNUTLS_E_SUCCESS\fP (0) is returned,

otherwise a negative error code is returned.  If you have reached the

last extension available \fBGNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE\fP

will be returned.

.SH "REPORTING BUGS"

Report bugs to <bugs@gnutls.org>.

.br

Home page: http://www.gnutls.org

.SH COPYRIGHT

Copyright \(co 2001-2018 Free Software Foundation, Inc., and others.

.br

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.

.SH "SEE ALSO"

The full documentation for

.B gnutls

is maintained as a Texinfo manual.

If the /usr/share/doc/gnutls/

directory does not contain the HTML form visit

.B

.IP http://www.gnutls.org/manual/

.PP