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int gnutls_x509_crt_get_key_purpose_oid(gnutls_x509_crt_t cert, int
indx, void * oid, size_t * oid_size, unsigned int * critical);
should contain a gnutls_x509_crt_t structure
int indx This specifies which OID to return. Use (0) to get the
void * oid a pointer to a buffer to hold the OID (may be null)
size_t * oid_size
initially holds the size of oid
unsigned int * critical
output flag to indicate criticality of extension
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 (184.108.40.206) See the GNUTLS_KP_* definitions for human
If oid is null then only the size will be filled. The oid returned
will be null terminated, although oid_size will not account for the
GNUTLS_E_SHORT_MEMORY_BUFFER if 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.
Report bugs to <email@example.com>.
Home page: http://www.gnutls.org
Copyright (C) 2001-2014 Free Software Foundation, Inc.
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.
The full documentation for gnutls is maintained as a Texinfo manual.
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