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@deftypefun {int} {gnutls_hex2bin} (const char * @var{hex_data}, size_t @var{hex_size}, void * @var{bin_data}, size_t * @var{bin_size})
@var{hex_data}: string with data in hex format
@var{hex_size}: size of hex data
@var{bin_data}: output array with binary data
@var{bin_size}: when calling should hold maximum size of @code{bin_data} ,
on return will hold actual length of @code{bin_data} .
Convert a buffer with hex data to binary data. This function
unlike @code{gnutls_hex_decode()} can parse hex data with separators
between numbers. That is, it ignores any non-hex characters.
@strong{Returns:} @code{GNUTLS_E_SUCCESS} on success, otherwise a negative error code.
@strong{Since:} 2.4.0
@end deftypefun
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