gnutls_x509_crt_get_extension_data(3)

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
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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COPYRIGHT

46       Copyright © 2001-2020 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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