plucky (3) asn1_der_decoding_startEnd.3.gz

Provided by: libtasn1-6-dev_4.20.0-2_amd64 bug

NAME
       asn1_der_decoding_startEnd - API function


SYNOPSIS
       #include <libtasn1.h>

       int  asn1_der_decoding_startEnd(asn1_node  element,  const  void  *  ider,  int  ider_len,  const  char *
       name_element, int * start, int * end);


ARGUMENTS
       asn1_node element
                   pointer to an ASN1 element

       const void * ider
                   vector that contains the DER encoding.

       int ider_len
                   number of bytes of * ider :  ider [0].. ider [len-1]

       const char * name_element
                   an element of NAME structure.

       int * start the position of the first byte of NAME_ELEMENT decoding ( ider [*start])

       int * end   the position of the last byte of NAME_ELEMENT decoding ( ider [*end])


DESCRIPTION
       Find the start and end point of an element in a DER encoding string. I  mean  that  if  you  have  a  der
       encoding  and  you  have already used the function asn1_der_decoding() to fill a structure, it may happen
       that you want to find the piece of string concerning an element of the structure.

       One example is the sequence "tbsCertificate" inside an X509 certificate.

       Note that since libtasn1 3.7 the  ider and  ider_len parameters can be omitted, if the element is already
       decoded using asn1_der_decoding().


RETURNS
       ASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if ELEMENT is asn1_node EMPTY or  name_element is
       not a valid element, ASN1_TAG_ERROR or ASN1_DER_ERROR if the der encoding  doesn't  match  the  structure
       ELEMENT.


       Copyright © 2006-2025 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/