1gnutls_x509_crt_get_extension_oid(3)gnutlsgnutls_x509_crt_get_extension_oid(3)
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NAME

6       gnutls_x509_crt_get_extension_oid - API function
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SYNOPSIS

9       #include <gnutls/x509.h>
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11       int  gnutls_x509_crt_get_extension_oid(gnutls_x509_crt_t cert, unsigned
12       indx, void * oid, size_t * oid_size);
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ARGUMENTS

15       gnutls_x509_crt_t cert
16                   should contain a gnutls_x509_crt_t type
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18       unsigned indx
19                   Specifies which extension OID to send. Use (0) to  get  the
20                   first one.
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22       void * oid  a pointer to a structure to hold the OID (may be null)
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24       size_t * oid_size
25                   initially holds the size of  oid
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DESCRIPTION

28       This  function  will return the requested extension OID in the certifi‐
29       cate.  The extension OID will be stored as a  string  in  the  provided
30       buffer.
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32       The   oid returned will be null terminated, although  oid_size will not
33       account for the trailing null.
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RETURNS

36       On success, GNUTLS_E_SUCCESS (0)  is  returned,  otherwise  a  negative
37       error  code is returned.  If you have reached the last extension avail‐
38       able GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
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REPORTING BUGS

41       Report bugs to <bugs@gnutls.org>.
42       Home page: https://www.gnutls.org
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46       Copyright © 2001- Free Software Foundation, Inc., and others.
47       Copying and distribution of this file, with  or  without  modification,
48       are  permitted  in  any  medium  without royalty provided the copyright
49       notice and this notice are preserved.
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SEE ALSO

52       The full documentation for gnutls is maintained as  a  Texinfo  manual.
53       If  the /usr/share/doc/gnutls/ directory does not contain the HTML form
54       visit
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56       https://www.gnutls.org/manual/
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58gnutls                              3.6.15gnutls_x509_crt_get_extension_oid(3)
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