Manpages - asn1_der_decoding_element.3

asn1_der_decoding_element - API function

#include <libtasn1.h>

int asn1_der_decoding_element(asn1_node * */structure/, const char * elementName, const void * ider, int len, char * errorDescription);*

asn1_node * 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.

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 NULL.

This function is deprecated and may just be an alias to asn1_der_decoding in future versions. Use asn1_der_decoding() instead.

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

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