shishi_asn1_read_inline3

Usage

Arguments

Shishi * handle

shishi handle as allocated by shishi_init().

Shishi_asn1 node

ASN.1 variable to read field from.

const char * field

name of field in node to read.

char * data

pre-allocated output buffer that will hold ASN.1 field data.

size_t * datalen

on input, maximum size of output buffer, on output, actual size of output buffer.

Overview

Extract data stored in a ASN.1 field into a fixed size buffer allocated by caller.

Note that since it is difficult to predict the length of the field, it is often better to use shishi_asn1_read() instead.

Return value

Returns SHISHI_OK if successful, SHISHI_ASN1_NO_ELEMENT if the element do not exist, SHISHI_ASN1_NO_VALUE if the field has no value, ot SHISHI_ASN1_ERROR otherwise.