asn1_get_length_der(3) libtasn1 asn1_get_length_der(3)
NAME
asn1_get_length_der - API function
SYNOPSIS
#include <libtasn1.h>
long asn1_get_length_der(const unsigned char * der, int der_len, int *
len);
ARGUMENTS
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.
DESCRIPTION
Extract a length field from DER data.
RETURNS
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 .
COPYRIGHT
Copyright © 2006-2021 Free Software Foundation, Inc..
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright no-
tice 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. As an alternative you
may obtain the manual from:
https://www.gnu.org/software/libtasn1/manual/
libtasn1 4.18.0 asn1_get_length_der(3)
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