1gnutls_x509_crt_get_extension_data(3)gnutlsgnutls_x509_crt_get_extension_data(3)
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NAME

6       gnutls_x509_crt_get_extension_data - API function
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SYNOPSIS

9       #include <gnutls/x509.h>
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11       int gnutls_x509_crt_get_extension_data(gnutls_x509_crt_t cert, unsigned
12       indx, void * data, size_t * sizeof_data);
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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 * data a pointer to a structure to hold the data (may be null)
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24       size_t * sizeof_data
25                   initially holds the size of  data
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DESCRIPTION

28       This  function will return the requested extension data in the certifi‐
29       cate.  The extension data will be stored in the provided buffer.
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31       Use gnutls_x509_crt_get_extension_info() to extract the OID and  criti‐
32       cal  flag.   Use gnutls_x509_crt_get_extension_by_oid() instead, if you
33       want to get data indexed by the extension OID rather than sequence.
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RETURNS

36       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative  er‐
37       ror code is returned.  If you have reached the last extension available
38       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 no‐
49       tice 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                               3.7.2gnutls_x509_crt_get_extension_data(3)
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