1gnutls_x509_crt_get_key_purpose_oid(3g)nutlgsnutls_x509_crt_get_key_purpose_oid(3)
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NAME

6       gnutls_x509_crt_get_key_purpose_oid - API function
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SYNOPSIS

9       #include <gnutls/x509.h>
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11       int   gnutls_x509_crt_get_key_purpose_oid(gnutls_x509_crt_t  cert,  int
12       indx, void * oid, size_t * oid_size, unsigned int * critical);
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ARGUMENTS

15       gnutls_x509_crt_t cert
16                   should contain a gnutls_x509_crt_t structure
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18       int indx    This specifies which OID to return.  Use  (0)  to  get  the
19                   first one.
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21       void * oid  a pointer to a buffer to hold the OID (may be null)
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23       size_t * oid_size
24                   initially holds the size of  oid
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26       unsigned int * critical
27                   output flag to indicate criticality of extension
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DESCRIPTION

30       This  function  will  extract  the  key purpose OIDs of the Certificate
31       specified by the given index.  These are stored  in  the  Extended  Key
32       Usage  extension  (2.5.29.37) See the GNUTLS_KP_* definitions for human
33       readable names.
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35       If  oid is null then only the size will be filled.  The   oid  returned
36       will  be  null  terminated, although  oid_size will not account for the
37       trailing null.
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RETURNS

40       GNUTLS_E_SHORT_MEMORY_BUFFER if the provided buffer is not long enough,
41       and  in that case the *oid_size will be updated with the required size.
42       On success 0 is returned.
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REPORTING BUGS

45       Report bugs to <bugs@gnutls.org>.
46       Home page: http://www.gnutls.org
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50       Copyright © 2001-2014 Free Software Foundation, Inc..
51       Copying and distribution of this file, with  or  without  modification,
52       are  permitted  in  any  medium  without royalty provided the copyright
53       notice and this notice are preserved.
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SEE ALSO

56       The full documentation for gnutls is maintained as  a  Texinfo  manual.
57       If  the /usr/share/doc/gnutls/ directory does not contain the HTML form
58       visit
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60       http://www.gnutls.org/manual/
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62gnutls                              3.3.2g9nutls_x509_crt_get_key_purpose_oid(3)
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