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@deftypefun {int} {gnutls_pkcs7_get_crt_raw} (gnutls_pkcs7_t @var{pkcs7}, int @var{indx}, void * @var{certificate}, size_t * @var{certificate_size})
@var{pkcs7}: should contain a gnutls_pkcs7_t structure
@var{indx}: contains the index of the certificate to extract
@var{certificate}: the contents of the certificate will be copied
there (may be null)
@var{certificate_size}: should hold the size of the certificate
This function will return a certificate of the PKCS7 or RFC2630
certificate set.
After the last certificate has been read
@code{GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE} will be returned.
@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise a
negative error value. If the provided buffer is not long enough,
then @code{certificate_size} is updated and
@code{GNUTLS_E_SHORT_MEMORY_BUFFER} is returned.
@end deftypefun
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