Provided by: libtasn1-6-dev_4.13-2_amd64
asn1_get_length_der - API function
#include <libtasn1.h> long asn1_get_length_der(const unsigned char * der, int der_len, int * len);
const unsigned char * der DER data to decode. int der_len Length of DER data to decode. int * len Output variable containing the length of the DER length field.
Extract a length field from DER data.
Return the decoded length value, or -1 on indefinite length, or -2 when the value was too big to fit in a int, or -4 when the decoded length value plus len would exceed der_len .
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