asn1_get_tag_der - API function

       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).

       Copyright © 2006-2025 Free Software Foundation, Inc..
       Copying and distribution of this file, with or without modification, are permitted in any medium  without
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       Decode the class and TAG from DER code.

       asn1_get_tag_der - API function

       Returns ASN1_SUCCESS on success, or an error.

       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

              infolibtasn1

       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                                             4.20.0                                  asn1_get_tag_der(3)

#include<libtasn1.h>intasn1_get_tag_der(constunsignedchar*der,intder_len,unsignedchar*cls,int*len,unsignedlong*tag);