asn1_read_tag (3)

#include <libtasn1.h>

int asn1_read_tag(asn1_node root, const char * name, int * tagValue, int * classValue);

asn1_node 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.

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.

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

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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:

• http://www.gnu.org/software/libtasn1/manual/