asn1_read_tag(3)

NAME
asn1_read_tag - API function

SYNOPSIS
#include <libtasn1.h>

int asn1_read_tag(asn1_node_const root, const char * name, int * tagValue, int * classValue);

ARGUMENTS

asn1_node_const root
    pointer to a structure

const char * name
    the name of the element inside a structure.

int * tagValue
    variable that will contain the TAG value.

int * classValue
    variable that will specify the TAG type.

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

RETURNS
ASN1_SUCCESS if successful, ASN1_ELEMENT_NOT_FOUND if
 name is not a valid element.

COPYRIGHT
Copyright © 2006-2025 Free Software Foundation, Inc..
Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO
The full documentation for libtasn1 is maintained as a Texinfo manual. If the info and libtasn1 programs are properly installed at your site, the command

    info libtasn1

should give you access to the complete manual. As an alternative you may obtain the manual from:

    https://www.gnu.org/software/libtasn1/manual/