asn1_object_id_der - API function

       const char * str
                   An object identifier in numeric, dot format.

       unsigned char * der
                   buffer to hold the returned encoding (may be NULL).

       int * der_len
                   initially the size of  der ; will hold the final size.

       unsigned flags
                   must be zero

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       Copying and distribution of this file, with or without modification, are permitted in any medium  without
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       Creates the DER encoding of the provided object identifier.

       asn1_object_id_der - API function

ASN1_SUCCESS  if  DER encoding was OK, ASN1_VALUE_NOT_VALID if  str is not a valid OID, ASN1_MEM_ERROR if
       the  der vector isn't big enough and in this case  der_len will contain the length needed.

       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_object_id_der(3)

#include<libtasn1.h>intasn1_object_id_der(constchar*str,unsignedchar*der,int*der_len,unsignedflags);