@deftypefun {int} {gnutls_psk_set_server_credentials_file} (gnutls_psk_server_credentials_t @var{res}, const char * @var{password_file})
@var{res}: is a @code{gnutls_psk_server_credentials_t} type.
@var{password_file}: is the PSK password file (passwd.psk)
This function sets the password file, in a
@code{gnutls_psk_server_credentials_t} type. This password file
holds usernames and keys and will be used for PSK authentication.
@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise
an error code is returned.
@end deftypefun