SYNOPSIS

#include <libtasn1.h>

asn1_retCode asn1_der_decoding_element(ASN1_TYPE * structure, const char * elementName, const void * ider, int len, char * errorDescription);

ARGUMENTS

ASN1_TYPE * structure

pointer to an ASN1 structure

const char * elementName

name of the element to fill

const void * ider

vector that contains the DER encoding of the whole structure.

int len

number of bytes of *der: der[0]..der[len-1]

char * errorDescription

null-terminated string contains details when an error occurred.

DESCRIPTION

Fill the element named ELEMENTNAME with values of a DER encoding string. The structure must just be created with function asn1_create_element(). The DER vector must contain the encoding string of the whole STRUCTURE. If an error occurs during the decoding procedure, the *STRUCTURE is deleted and set equal to ASN1_TYPE_EMPTY.

RETURNS

ASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if ELEMENT is ASN1_TYPE_EMPTY or elementName == NULL, and ASN1_TAG_ERROR or ASN1_DER_ERROR if the der encoding doesn't match the structure structure (*ELEMENT deleted).

COPYRIGHT

Copyright © 2006-2011 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.