@subheading asn1_read_tag
@anchor{asn1_read_tag}
@deftypefun {int} {asn1_read_tag} (asn1_node @var{root}, const char * @var{name}, int * @var{tagValue}, int * @var{classValue})
@var{root}: pointer to a structure

@var{name}: the name of the element inside a structure.

@var{tagValue}: variable that will contain the TAG value.

@var{classValue}: variable that will specify the TAG type.

Returns the TAG and the CLASS of one element inside a structure.
CLASS can have one of these constants: @code{ASN1_CLASS_APPLICATION} ,
@code{ASN1_CLASS_UNIVERSAL} , @code{ASN1_CLASS_PRIVATE}  or
@code{ASN1_CLASS_CONTEXT_SPECIFIC} .

@strong{Returns:} @code{ASN1_SUCCESS}  if successful, @code{ASN1_ELEMENT_NOT_FOUND}  if
 @code{name} is not a valid element.
@end deftypefun

