asn1_der_decoding_element(3)

NAME
asn1_der_decoding_element - Fill the element named ELEMENTNAME of the structure STRUCTURE with values of a DER encoding string.

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 sructure must just be created with function 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
DER encoding OK.

ASN1_ELEMENT_NOT_FOUND
ELEMENT is ASN1_TYPE_EMPTY or elementName == NULL. ASN1_TAG_ERROR,ASN1_DER_ERROR: The der encoding doesn't match the structure STRUCTURE. *ELEMENT deleted.

COPYRIGHT
Copyright © 2006, 2007, 2008 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.