asn1_get_tag_der(3)                libtasn1                asn1_get_tag_der(3)

NAME
       asn1_get_tag_der - API function

SYNOPSIS
       #include <libtasn1.h>

       int asn1_get_tag_der(const unsigned char * der, int der_len, unsigned
       char * cls, int * len, unsigned long * tag);

ARGUMENTS
       const unsigned char * der
                   DER data to decode.

       int der_len Length of DER data to decode.

       unsigned char * cls
                   Output variable containing decoded class.

       int * len   Output variable containing the length of the DER TAG data.

       unsigned long * tag
                   Output variable containing the decoded tag (may be NULL).

DESCRIPTION
       Decode the class and TAG from DER code.

RETURNS
       Returns ASN1_SUCCESS on success, or an error.

COPYRIGHT
       Copyright (C) 2006-2022 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.  As an alternative you
       may obtain the manual from:

              https://www.gnu.org/software/libtasn1/manual/

libtasn1                            4.19.0                 asn1_get_tag_der(3)