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asn1_der_coding(3) [centos man page]

asn1_der_coding(3)						     libtasn1							asn1_der_coding(3)

NAME
asn1_der_coding - API function SYNOPSIS
#include <libtasn1.h> int asn1_der_coding(asn1_node element, const char * name, void * ider, int * len, char * ErrorDescription); ARGUMENTS
asn1_node element pointer to an ASN1 element const char * name the name of the structure you want to encode (it must be inside *POINTER). void * ider vector that will contain the DER encoding. DER must be a pointer to memory cells already allocated. int * len number of bytes of *ider: ider[0]..ider[len-1], Initialy holds the sizeof of der vector. char * ErrorDescription DESCRIPTION
Creates the DER encoding for the NAME structure (inside *POINTER structure). RETURNS
ASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if name is not a valid element, ASN1_VALUE_NOT_FOUND if there is an element without a value, ASN1_MEM_ERROR if the ider vector isn't big enough and in this case len will contain the length needed. COPYRIGHT
Copyright (C) 2006-2013 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. libtasn1 3.3 asn1_der_coding(3)

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asn1_der_decoding_startEnd(3)					     libtasn1					     asn1_der_decoding_startEnd(3)

NAME
asn1_der_decoding_startEnd - API function SYNOPSIS
#include <libtasn1.h> int asn1_der_decoding_startEnd(asn1_node element, const void * ider, int 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 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. 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
Copyright (C) 2006-2013 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. libtasn1 3.3 asn1_der_decoding_startEnd(3)
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