gnutls_x509_crt_t cert
should contain a gnutls_x509_crt_t type
const char * purpose
a key purpose OID (e.g., GNUTLS_KP_CODE_SIGNING)
unsigned flags
zero or GNUTLS_KP_FLAG_DISALLOW_ANY
ОПИСАНИЕ
This function will check whether the given certificate matches
the provided key purpose. If flags contains
GNUTLS_KP_FLAG_ALLOW_ANY then it a certificate marked for any
purpose will not match.
ЗНАЧЕНИЕ
zero if the key purpose doesn't match, and non-zero otherwise.
The full documentation for gnutls is maintained as a Texinfo
manual. If the /usr/share/doc/gnutls/ directory does not contain
the HTML form visit
https://www.gnutls.org/manual/
КОЛОФОН
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manual page, send it to bugs@gnutls.org. This page was obtained
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gnutls 3.8.5 gnutls_x509_...k_key_purpose(3)