1gnutls_x509_crt_get_extension_data(3)gnutlsgnutls_x509_crt_get_extension_data(3)
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6 gnutls_x509_crt_get_extension_data - API function
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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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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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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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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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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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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 3.7.8gnutls_x509_crt_get_extension_data(3)